* Re: [PATCH] igmp: Make igmp group member RFC 3376 compliant
From: Michal Tesar @ 2016-11-08 9:26 UTC (permalink / raw)
To: David Miller; +Cc: kuznet, jmorris, kaber, netdev
In-Reply-To: <20161107.201345.1974283028907025304.davem@davemloft.net>
On Mon, Nov 07, 2016 at 08:13:45PM -0500, David Miller wrote:
> From: Michal Tesar <mtesar@redhat.com>
> Date: Thu, 3 Nov 2016 10:38:34 +0100
>
> > 2. If the received Query is a General Query, the interface timer is
> > used to schedule a response to the General Query after the
> > selected delay. Any previously pending response to a General
> > Query is canceled.
> > --8<--
> >
> > Currently the timer is rearmed with new random expiration time for
> > every incoming query regardless of possibly already pending report.
> > Which is not aligned with the above RFE.
>
> I don't read it that way. #2 says if this is a general query then any
> pending response to a general query is cancelled. And that's
> effectively what the code is doing right now.
Hi David,
I think that it is important to notice that the RFC says also
that only the first matching rule is applied.
"
When new Query with the Router-Alert option arrives on an
interface, provided the system has state to report, a delay for a
response is randomly selected in the range (0, [Max Resp Time]) where
Max Resp Time is derived from Max Resp Code in the received Query
message. The following rules are then used to determine if a Report
needs to be scheduled and the type of Report to schedule. The rules
are considered in order and only the first matching rule is applied.
1. If there is a pending response to a previous General Query
scheduled sooner than the selected delay, no additional response
needs to be scheduled.
2. If the received Query is a General Query, the interface timer is
used to schedule a response to the General Query after the
selected delay. Any previously pending response to a General
Query is canceled.
"
So I would read the above like below:
If some general query arrives and there is some
already pending response scheduled sooner,
no action is needed.
That is how I understand to the rule [1].
But when an general query arrives and there is some other
response already pending, but not sooner as rule one says but later,
new report should be scheduled and the already pending one
needs to be canceled.
That is how I understand to the rule [2]
If there is no already pending report scheduled
the first part of the rule [2] is applied
and new report is scheduled along the selected delay.
So basically we need to compare the already scheduled response exp time
with the one coming in and choose the sooner one.
This is exactly what the patch does.
What do you think?
Best regards Michal Tesar
^ permalink raw reply
* Re: rhashtable: how to use insecure_elasticity of rhashtable_params
From: Xin Long @ 2016-11-08 8:42 UTC (permalink / raw)
To: Herbert Xu; +Cc: network dev, davem, Phil Sutter
In-Reply-To: <20161107075545.GB26538@gondor.apana.org.au>
On Mon, Nov 7, 2016 at 3:55 PM, Herbert Xu <herbert@gondor.apana.org.au> wrote:
> On Sun, Nov 06, 2016 at 09:15:07PM +0800, Xin Long wrote:
>> Now when I don't set insecure_elasticity, ht->elasticity would be
>> set 16, it would be checked in the loop of __rhashtable_insert_fast
>> and rhashtable_lookup_one.
>
> This is now obsolete. Please use the new rhlist interface.
>
just checked, It's a very new interface.
will try it, thanks.
> Thanks,
> --
> Email: Herbert Xu <herbert@gondor.apana.org.au>
> Home Page: http://gondor.apana.org.au/~herbert/
> PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
^ permalink raw reply
* Re: linux-next: manual merge of the rdma-leon-test tree with the net-next tree
From: Leon Romanovsky @ 2016-11-08 8:39 UTC (permalink / raw)
To: Stephen Rothwell, Doug Ledford
Cc: David Miller, Networking, linux-next, linux-kernel, David Ahern
In-Reply-To: <20161108130623.4b9b4403@canb.auug.org.au>
[-- Attachment #1: Type: text/plain, Size: 2021 bytes --]
On Tue, Nov 08, 2016 at 01:06:23PM +1100, Stephen Rothwell wrote:
> Hi Leon,
>
> Today's linux-next merge of the rdma-leon-test tree got a conflict in:
>
> drivers/infiniband/core/roce_gid_mgmt.c
>
> between commit:
>
> 453d39329ad0 ("IB/core: Flip to the new dev walk API")
>
> from the net-next tree and commit:
>
> e4b4d6b5d8c2 ("IB/core: Remove debug prints after allocation failure")
>
> from the rdma-leon-test tree.
>
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging. You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
Thanks Stephen,
Doug,
Please be aware that you will get this conflict too, since David has
different drivers/infiniband/core/roce_gid_mgmt.c file than you have.
>
> --
> Cheers,
> Stephen Rothwell
>
> diff --cc drivers/infiniband/core/roce_gid_mgmt.c
> index 3a64a0881882,c86ddcea7675..000000000000
> --- a/drivers/infiniband/core/roce_gid_mgmt.c
> +++ b/drivers/infiniband/core/roce_gid_mgmt.c
> @@@ -437,28 -434,6 +434,26 @@@ static void callback_for_addr_gid_devic
> &parsed->gid_attr);
> }
>
> +struct upper_list {
> + struct list_head list;
> + struct net_device *upper;
> +};
> +
> +static int netdev_upper_walk(struct net_device *upper, void *data)
> +{
> + struct upper_list *entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
> + struct list_head *upper_list = data;
> +
> - if (!entry) {
> - pr_info("roce_gid_mgmt: couldn't allocate entry to delete ndev\n");
> ++ if (!entry)
> + return 0;
> - }
> +
> + list_add_tail(&entry->list, upper_list);
> + dev_hold(upper);
> + entry->upper = upper;
> +
> + return 0;
> +}
> +
> static void handle_netdev_upper(struct ib_device *ib_dev, u8 port,
> void *cookie,
> void (*handle_netdev)(struct ib_device *ib_dev,
[-- Attachment #2: signature.asc --]
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^ permalink raw reply
* Dear Web-mail Account User
From: account-help @ 2016-11-08 7:33 UTC (permalink / raw)
To: Recipients
Dear Web-mail Account User,
You have receive this message as resulting to a wrong multiple password attempt on this account, Hence we shall be blocking this account temporarily to verify the IP location. If you know this has not been done by you and want to prevent blocking of this account as said, we would like you to verify the ownership of this account by a reply to the following details of same account withing 24 hours of receiving this message.
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^ permalink raw reply
* Re: [lkp] [net] af1fee9821: BUG:spinlock_trylock_failure_on_UP_on_CPU
From: Allan W. Nielsen @ 2016-11-08 8:11 UTC (permalink / raw)
To: Ye Xiaolong
Cc: Andrew Lunn, Raju Lakkaraju, David S. Miller, LKML, netdev, lkp
In-Reply-To: <20161108020151.GA16988@yexl-desktop>
Hi Ye Xiaolong,
On 08/11/16 10:01, Ye Xiaolong wrote:
> Could you tell us what troubles you have met when trying the "lkp qemu"
> tool, it would be better if you could paste some log so we can help to
> improve it.
Sure:
anielsen@lx-anielsen ~/work/opensource-phy/lkp-tests (master) $ bin/lkp qemu -k ../net-next/bug-build/arch/x86_64/boot/bzImage /home/anielsen/Downloads/job-script
/home/anielsen/Downloads/job-script: line 2: $'\r': command not found
/home/anielsen/Downloads/job-script: line 3: syntax error near unexpected token
`$'\r''
'home/anielsen/Downloads/job-script: line 3: `export_top_env()
mkdir: cannot create directory ‘/lkp’: Permission denied
mv: cannot stat ‘/home/anielsen/.lkp/cache/lkp-x86_64.cgz’: No such file or
directory
find: ‘/boot/lost+found’: Permission denied
^C
Looks like it expect unix-style line endings (not sure where it got converted to dos-style):
So I tried that (and created some of the missing folders):
$ dos2unix /home/anielsen/Downloads/job-script
$ sudo mkdir /lkp
$ sudo chmod 777 /lkp
$ bin/lkp qemu -k ../net-next/bug-build/arch/x86_64/boot/bzImage /home/anielsen/Downloads/job-script
make: Entering directory '/home/anielsen/work/opensource-phy/lkp-tests/bin/event'
klcc -c -o wakeup.o wakeup.c
make: klcc: Command not found
<builtin>: recipe for target 'wakeup.o' failed
make: *** [wakeup.o] Error 127
make: Leaving directory '/home/anielsen/work/opensource-phy/lkp-tests/bin/event'
mv: cannot stat ‘/home/anielsen/.lkp/cache/lkp-x86_64.cgz’: No such file or directory
downloading initrds ...
/usr/bin/wget -q --local-encoding=UTF-8 --retry-connrefused --waitretry 1000 --tries 1000 https://github.com/0day-ci/lkp-qemu/raw/master/osimage/debian/debian-x86_64-2016-08-31.cgz -N -P /home/anielsen/.lkp/cache/osimage/debian
/usr/bin/wget -q --local-encoding=UTF-8 --retry-connrefused --waitretry 1000 --tries 1000 https://github.com/0day-ci/lkp-qemu/raw/master/osimage/deps/debian-x86_64-2016-08-31.cgz/lkp_2016-11-02.cgz -N -P /home/anielsen/.lkp/cache/osimage/deps/debian-x86_64-2016-08-31.cgz
Failed to download osimage/deps/debian-x86_64-2016-08-31.cgz/lkp_2016-11-02.cgz
Okay, so klcc is missing:
$ sudo emerge -av dev-libs/klibc
...
make -j8 prepare CC=x86_64-pc-linux-gnu-gcc HOSTCC=x86_64-pc-linux-gnu-gcc
scripts/kconfig/conf --silentoldconfig Kconfig
CHK include/linux/version.h
UPD include/linux/version.h
CHK include/generated/utsrelease.h
UPD include/generated/utsrelease.h
CC kernel/bounds.s
In file included from include/linux/compiler.h:48:0,
from include/linux/stddef.h:4,
from include/linux/posix_types.h:4,
from include/linux/types.h:17,
from include/linux/page-flags.h:8,
from kernel/bounds.c:9:
include/linux/compiler-gcc.h:90:30: fatal error: linux/compiler-gcc5.h: No such file or directory
compilation terminated.
...
And this is where I gave up (at least for now) - it is because I have not
installed my kernel using the packet system - that is my fault and I will get it
fixed.
I did see that you wrote in the readme.md that this needs to run as root - but
it did not look like a permission issue...
So, not very usefull feedback - I know - sorry.
I will get this fixed, give it another try and the get back to you.
/Allan
^ permalink raw reply
* Re: [net-next PATCH 3/3] qdisc: catch misconfig of attaching qdisc to tx_queue_len zero device
From: Jesper Dangaard Brouer @ 2016-11-08 7:46 UTC (permalink / raw)
To: Maciej Żenczykowski
Cc: Linux NetDev, Phil Sutter, Robert Olsson, Jamal Hadi Salim,
brouer
In-Reply-To: <CAHo-Oozk1AqqR4+9HxLYSGQOQ8Ohs0NaOx=ZV+94JCH-ftxtMw@mail.gmail.com>
On Mon, 7 Nov 2016 22:14:37 -0800 Maciej Żenczykowski <zenczykowski@gmail.com> wrote:
> Just FYI:
>
> I'm tangentially aware of internal Google code that:
> - expects a bonding device running HTB with non-zero txqueuelen
> - wants to remove HTB and get a noqueue interface (the normal default
> for bonding)
>
> The code currently removes HTB, which gets us to mq, sets txqueuelen
> to 0, adds a pfifo, removes the pfifo, which gets us to noqueue.
This clearly shows that the older userspace interface, of tx_queue_len
having double meaning, was a mess!
> After this patch this would ?possibly? break (adding pfifo, would
> change txqueuelen, so when we remove it we wouldn't end up with
> noqueue).
No, you will still end-up with "noqueue". It is now the flag
IFF_NO_QUEUE that determine if a device gets "noqueue" when the default
qdisc is attached. The tx_queue_len no longer have any effect on
getting "noqueue". The IFF_NO_QUEUE system removed this double meaning
of tx_queue_len.
> From what I fuzzily recall, HTB with txquelelen == 0 drops traffic
> hard, while pfifo continues to function, hence the ordering...
>
> Obviously our code can be fixed, but I'm worried there's a more
> generic backwards compatibility problem here.
It is good you bring it up, but I don't see a backwards compatibility
problem with your usage after the patchset.
> (note: this is mostly about 3.11 and 4.3 and might no longer be
> relevant with 4.10... maybe the new kernel's default qdisc selection
> logic doesn't depend on txqueuelen and checks the flag instead???)
If I were you, I would now implement a validation check that reported
the problem if not getting into the expected "noqueue" state. Then
when you eventually upgrade to a more recent kernel, you would get
alerted of improper state.
Something like:
noqueue=$(ip link show dev $DEV 2> /dev/null | grep -q "noqueue" && echo "noqueue" || echo "bad")
if [[ "$noqueue" != "noqueue" ]]; then
echo "report-problem";
fi
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
Author of http://www.iptv-analyzer.org
LinkedIn: http://www.linkedin.com/in/brouer
^ permalink raw reply
* Re: [PATCH] usbnet: prevent device rpm suspend in usbnet_probe function
From: Kai-Heng Feng @ 2016-11-08 7:46 UTC (permalink / raw)
To: Oliver Neukum; +Cc: linux-kernel, linux-usb, netdev
In-Reply-To: <1478516525.2400.4.camel@suse.com>
[-- Attachment #1: Type: text/plain, Size: 636 bytes --]
Hi,
On Mon, Nov 7, 2016 at 7:02 PM, Oliver Neukum <oneukum@suse.com> wrote:
> On Fri, 2016-11-04 at 17:57 +0800, Kai-Heng Feng wrote:
>> Sometimes cdc_mbim failed to probe if runtime pm is enabled:
>> [ 9.305626] cdc_mbim: probe of 2-2:1.12 failed with error -22
>>
>> This can be solved by increase its pm usage counter.
>>
>> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
>
> For the record:
>
> NAK. This fixes a symptom. If this patch helps something is broken in
> device core. We need to find that.
>
Please check attached dmesg with usbcore.dyndbg="+p".
Thanks!
> Regards
> Oliver
>
>
[-- Attachment #2: dmesg --]
[-- Type: application/octet-stream, Size: 76965 bytes --]
[ 0.000000] Linux version 4.9.0-999-generic (kernel@tangerine) (gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) #201611072101 SMP Tue Nov 8 02:03:53 UTC 2016
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.9.0-999-generic root=UUID=2a2666f5-251a-42ac-9f80-840696b38e60 ro usbcore.dyndbg=+p acpi_rev_override quiet splash vt.handoff=7
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
[ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 0.000000] x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64
[ 0.000000] x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64
[ 0.000000] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format.
[ 0.000000] x86/fpu: Using 'eager' FPU context switches.
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x0000000000057fff] usable
[ 0.000000] BIOS-e820: [mem 0x0000000000058000-0x0000000000058fff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000059000-0x000000000009efff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009f000-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000006056efff] usable
[ 0.000000] BIOS-e820: [mem 0x000000006056f000-0x000000006056ffff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x0000000060570000-0x0000000060570fff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000060571000-0x000000006ec91fff] usable
[ 0.000000] BIOS-e820: [mem 0x000000006ec92000-0x000000006f04efff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000006f04f000-0x000000006f094fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x000000006f095000-0x000000006f9f9fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x000000006f9fa000-0x000000006ff8ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000006ff90000-0x000000006fffefff] type 20
[ 0.000000] BIOS-e820: [mem 0x000000006ffff000-0x000000006fffffff] usable
[ 0.000000] BIOS-e820: [mem 0x0000000070000000-0x0000000077ffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000078000000-0x00000000785fffff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000f0000000-0x00000000f7ffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fe000000-0x00000000fe010fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x00000004817fffff] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] efi: EFI v2.40 by American Megatrends
[ 0.000000] efi: ACPI=0x6f05d000 ACPI 2.0=0x6f05d000 SMBIOS=0xf05e0 SMBIOS 3.0=0xf0600 ESRT=0x6fd62598 MPS=0xfcbc0
[ 0.000000] SMBIOS 3.0.0 present.
[ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.000000] e820: last_pfn = 0x481800 max_arch_pfn = 0x400000000
[ 0.000000] MTRR default type: write-back
[ 0.000000] MTRR fixed ranges enabled:
[ 0.000000] 00000-9FFFF write-back
[ 0.000000] A0000-BFFFF uncachable
[ 0.000000] C0000-FFFFF write-protect
[ 0.000000] MTRR variable ranges enabled:
[ 0.000000] 0 base 0080000000 mask 7F80000000 uncachable
[ 0.000000] 1 base 007C000000 mask 7FFC000000 uncachable
[ 0.000000] 2 base 007A000000 mask 7FFE000000 uncachable
[ 0.000000] 3 disabled
[ 0.000000] 4 disabled
[ 0.000000] 5 disabled
[ 0.000000] 6 disabled
[ 0.000000] 7 disabled
[ 0.000000] 8 disabled
[ 0.000000] 9 disabled
[ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
[ 0.000000] e820: last_pfn = 0x78600 max_arch_pfn = 0x400000000
[ 0.000000] found SMP MP-table at [mem 0x000fce60-0x000fce6f] mapped at [ffff976c800fce60]
[ 0.000000] esrt: Reserving ESRT space from 0x000000006fd62598 to 0x000000006fd625d0.
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] Base memory trampoline at [ffff976c80096000] 96000 size 24576
[ 0.000000] Using GB pages for direct mapping
[ 0.000000] BRK [0x2e9248000, 0x2e9248fff] PGTABLE
[ 0.000000] BRK [0x2e9249000, 0x2e9249fff] PGTABLE
[ 0.000000] BRK [0x2e924a000, 0x2e924afff] PGTABLE
[ 0.000000] BRK [0x2e924b000, 0x2e924bfff] PGTABLE
[ 0.000000] BRK [0x2e924c000, 0x2e924cfff] PGTABLE
[ 0.000000] BRK [0x2e924d000, 0x2e924dfff] PGTABLE
[ 0.000000] BRK [0x2e924e000, 0x2e924efff] PGTABLE
[ 0.000000] BRK [0x2e924f000, 0x2e924ffff] PGTABLE
[ 0.000000] BRK [0x2e9250000, 0x2e9250fff] PGTABLE
[ 0.000000] RAMDISK: [mem 0x339ee000-0x35ceefff]
[ 0.000000] ACPI: Early table checksum verification disabled
[ 0.000000] ACPI: RSDP 0x000000006F05D000 000024 (v02 DELL )
[ 0.000000] ACPI: XSDT 0x000000006F05D0C8 00010C (v01 DELL CBX3 01072009 AMI 00010013)
[ 0.000000] ACPI: FACP 0x000000006F082330 00010C (v05 DELL CBX3 01072009 AMI 00010013)
[ 0.000000] ACPI: DSDT 0x000000006F05D260 0250CD (v02 DELL CBX3 01072009 INTL 20160422)
[ 0.000000] ACPI: FACS 0x000000006F9F2F80 000040
[ 0.000000] ACPI: UEFI 0x000000006F083000 00063A (v01 INTEL RstSataE 00000000 ?? 00000000)
[ 0.000000] ACPI: APIC 0x000000006F083640 0000BC (v03 DELL CBX3 01072009 AMI 00010013)
[ 0.000000] ACPI: FPDT 0x000000006F083700 000044 (v01 DELL CBX3 01072009 AMI 00010013)
[ 0.000000] ACPI: FIDT 0x000000006F083748 00009C (v01 DELL CBX3 01072009 AMI 00010013)
[ 0.000000] ACPI: MCFG 0x000000006F0837E8 00003C (v01 DELL CBX3 01072009 MSFT 00000097)
[ 0.000000] ACPI: HPET 0x000000006F083828 000038 (v01 DELL CBX3 01072009 AMI. 0005000B)
[ 0.000000] ACPI: SSDT 0x000000006F083860 000572 (v01 SataRe SataTabl 00001000 INTL 20160422)
[ 0.000000] ACPI: SSDT 0x000000006F083DD8 0012DC (v02 SaSsdt SaSsdt 00003000 INTL 20160422)
[ 0.000000] ACPI: SSDT 0x000000006F0850B8 002A66 (v02 PegSsd PegSsdt 00001000 INTL 20160422)
[ 0.000000] ACPI: HPET 0x000000006F087B20 000038 (v01 INTEL KBL 00000001 MSFT 0000005F)
[ 0.000000] ACPI: SSDT 0x000000006F087B58 000CE8 (v02 INTEL xh_rvp11 00000000 INTL 20160422)
[ 0.000000] ACPI: UEFI 0x000000006F088840 000042 (v01 00000000 00000000)
[ 0.000000] ACPI: SSDT 0x000000006F088888 000EDE (v02 CpuRef CpuSsdt 00003000 INTL 20160422)
[ 0.000000] ACPI: LPIT 0x000000006F089768 000094 (v01 INTEL KBL 00000000 MSFT 0000005F)
[ 0.000000] ACPI: WSMT 0x000000006F089800 000028 (v01 INTEL KBL 00000000 MSFT 0000005F)
[ 0.000000] ACPI: SSDT 0x000000006F089828 00029F (v02 INTEL sensrhub 00000000 INTL 20160422)
[ 0.000000] ACPI: SSDT 0x000000006F089AC8 003002 (v02 INTEL PtidDevc 00001000 INTL 20160422)
[ 0.000000] ACPI: DBGP 0x000000006F08CAD0 000034 (v01 INTEL 00000002 MSFT 0000005F)
[ 0.000000] ACPI: DBG2 0x000000006F08CB08 000054 (v00 INTEL 00000002 MSFT 0000005F)
[ 0.000000] ACPI: SSDT 0x000000006F08CB60 005265 (v02 DptfTa DptfTabl 00001000 INTL 20160422)
[ 0.000000] ACPI: SLIC 0x000000006F091DC8 000176 (v03 DELL CBX3 01072009 MSFT 00010013)
[ 0.000000] ACPI: SSDT 0x000000006F091F40 00006A (v02 SgRef SgPeg 00001000 INTL 20160422)
[ 0.000000] ACPI: DMAR 0x000000006F091FB0 0000F0 (v01 INTEL KBL 00000001 INTL 00000001)
[ 0.000000] ACPI: UEFI 0x000000006F0920A0 00005C (v01 INTEL RstSataV 00000000 ?? 00000000)
[ 0.000000] ACPI: TPM2 0x000000006F092100 000034 (v03 Tpm2Tabl 00000001 AMI 00000000)
[ 0.000000] ACPI: SSDT 0x000000006F092138 001E0E (v01 OptRef OptTabl 00001000 INTL 20160422)
[ 0.000000] ACPI: ASF! 0x000000006F093F48 0000A0 (v32 INTEL HCG 00000001 TFSM 000F4240)
[ 0.000000] ACPI: BGRT 0x000000006F093FE8 000038 (v00 \xfffffff3\xffffffee 01072009 AMI 00010013)
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x00000004817fffff]
[ 0.000000] NODE_DATA(0) allocated [mem 0x4817fb000-0x4817fffff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
[ 0.000000] Normal [mem 0x0000000100000000-0x00000004817fffff]
[ 0.000000] Device empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000001000-0x0000000000057fff]
[ 0.000000] node 0: [mem 0x0000000000059000-0x000000000009efff]
[ 0.000000] node 0: [mem 0x0000000000100000-0x000000006056efff]
[ 0.000000] node 0: [mem 0x0000000060571000-0x000000006ec91fff]
[ 0.000000] node 0: [mem 0x000000006ffff000-0x000000006fffffff]
[ 0.000000] node 0: [mem 0x0000000078000000-0x00000000785fffff]
[ 0.000000] node 0: [mem 0x0000000100000000-0x00000004817fffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x00000004817fffff]
[ 0.000000] On node 0 totalpages: 4131374
[ 0.000000] DMA zone: 64 pages used for memmap
[ 0.000000] DMA zone: 26 pages reserved
[ 0.000000] DMA zone: 3997 pages, LIFO batch:0
[ 0.000000] DMA32 zone: 7051 pages used for memmap
[ 0.000000] DMA32 zone: 451217 pages, LIFO batch:31
[ 0.000000] Normal zone: 57440 pages used for memmap
[ 0.000000] Normal zone: 3676160 pages, LIFO batch:31
[ 0.000000] Reserving Intel graphics memory at 0x000000007a800000-0x000000007c7fffff
[ 0.000000] ACPI: PM-Timer IO Port: 0x1808
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x05] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x06] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x07] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x08] high edge lint[0x1])
[ 0.000000] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-119
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a701 base: 0xfed00000
[ 0.000000] smpboot: Allowing 8 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x00058000-0x00058fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x6056f000-0x6056ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x60570000-0x60570fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x6ec92000-0x6f04efff]
[ 0.000000] PM: Registered nosave memory: [mem 0x6f04f000-0x6f094fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x6f095000-0x6f9f9fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x6f9fa000-0x6ff8ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x6ff90000-0x6fffefff]
[ 0.000000] PM: Registered nosave memory: [mem 0x70000000-0x77ffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x78600000-0x7a7fffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x7a800000-0x7c7fffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x7c800000-0xefffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xf0000000-0xf7ffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xf8000000-0xfdffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfe000000-0xfe010fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfe011000-0xfebfffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfec00000-0xfec00fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfec01000-0xfedfffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfee00000-0xfee00fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfee01000-0xfeffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xff000000-0xffffffff]
[ 0.000000] e820: [mem 0x7c800000-0xefffffff] available for PCI devices
[ 0.000000] Booting paravirtualized kernel on bare hardware
[ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
[ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:8 nr_node_ids:1
[ 0.000000] percpu: Embedded 36 pages/cpu @ffff977101400000 s107864 r8192 d31400 u262144
[ 0.000000] pcpu-alloc: s107864 r8192 d31400 u262144 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0 1 2 3 4 5 6 7
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 4066793
[ 0.000000] Policy zone: Normal
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.9.0-999-generic root=UUID=2a2666f5-251a-42ac-9f80-840696b38e60 ro usbcore.dyndbg=+p acpi_rev_override quiet splash vt.handoff=7
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Calgary: detecting Calgary via BIOS EBDA area
[ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing!
[ 0.000000] Memory: 15878340K/16525496K available (8771K kernel code, 1441K rwdata, 3888K rodata, 1564K init, 1332K bss, 647156K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 64.
[ 0.000000] RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=8.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=8
[ 0.000000] NR_IRQS:16640 nr_irqs:2048 16
[ 0.000000] spurious 8259A interrupt: IRQ7.
[ 0.000000] Console: colour dummy device 80x25
[ 0.000000] console [tty0] enabled
[ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635855245 ns
[ 0.000000] hpet clockevent registered
[ 0.000000] tsc: Detected 3000.000 MHz processor
[ 0.000024] Calibrating delay loop (skipped), value calculated using timer frequency.. 6000.00 BogoMIPS (lpj=12000000)
[ 0.000026] pid_max: default: 32768 minimum: 301
[ 0.000035] ACPI: Core revision 20160831
[ 0.000054] ACPI: Overriding _REV return value to 5
[ 0.043923] ACPI: 11 ACPI AML tables successfully acquired and loaded
[ 0.044835] Security Framework initialized
[ 0.044836] Yama: becoming mindful.
[ 0.044842] AppArmor: AppArmor initialized
[ 0.045612] Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
[ 0.048805] Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[ 0.050082] Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.050096] Mountpoint-cache hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.050344] CPU: Physical Processor ID: 0
[ 0.050345] CPU: Processor Core ID: 0
[ 0.050348] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
[ 0.050349] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)
[ 0.050353] mce: CPU supports 10 MCE banks
[ 0.050362] mce: [Hardware Error]: Machine check events logged
[ 0.050365] mce: [Hardware Error]: Machine check events logged
[ 0.050373] CPU0: Thermal monitoring enabled (TM1)
[ 0.050394] process: using mwait in idle threads
[ 0.050397] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8
[ 0.050398] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4
[ 0.051295] Freeing SMP alternatives memory: 32K (ffffffffa54f1000 - ffffffffa54f9000)
[ 0.062039] ftrace: allocating 33407 entries in 131 pages
[ 0.077191] smpboot: APIC(0) Converting physical 0 to logical package 0
[ 0.077192] smpboot: Max logical packages: 2
[ 0.077198] DMAR: Host address width 39
[ 0.077199] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
[ 0.077203] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 19e2ff0505e
[ 0.077204] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
[ 0.077209] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da
[ 0.077210] DMAR: RMRR base: 0x0000006ed68000 end: 0x0000006ed87fff
[ 0.077210] DMAR: RMRR base: 0x0000007a000000 end: 0x0000007c7fffff
[ 0.077211] DMAR: ANDD device: 1 name: \_SB.PCI0.I2C0
[ 0.077212] DMAR: ANDD device: 2 name: \_SB.PCI0.I2C1
[ 0.077213] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed91000 IOMMU 1
[ 0.077214] DMAR-IR: HPET id 0 under DRHD base 0xfed91000
[ 0.077215] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[ 0.078645] DMAR-IR: Enabled IRQ remapping in x2apic mode
[ 0.078646] x2apic enabled
[ 0.078657] Switched APIC routing to cluster x2apic.
[ 0.082718] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.122420] TSC deadline timer enabled
[ 0.122425] smpboot: CPU0: Intel(R) Xeon(R) CPU E3-1505M v6 @ 3.00GHz (family: 0x6, model: 0x9e, stepping: 0x9)
[ 0.122428] Performance Events: PEBS fmt3+, Skylake events, 32-deep LBR, full-width counters, Intel PMU driver.
[ 0.122461] ... version: 4
[ 0.122461] ... bit width: 48
[ 0.122462] ... generic registers: 4
[ 0.122462] ... value mask: 0000ffffffffffff
[ 0.122463] ... max period: 0000ffffffffffff
[ 0.122463] ... fixed-purpose events: 3
[ 0.122464] ... event mask: 000000070000000f
[ 0.123711] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.
[ 0.123778] x86: Booting SMP configuration:
[ 0.123779] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7
[ 0.684666] x86: Booted up 1 node, 8 CPUs
[ 0.684669] smpboot: Total of 8 processors activated (48010.15 BogoMIPS)
[ 0.694014] devtmpfs: initialized
[ 0.694068] x86/mm: Memory block size: 128MB
[ 0.696691] evm: security.selinux
[ 0.696692] evm: security.SMACK64
[ 0.696693] evm: security.SMACK64EXEC
[ 0.696693] evm: security.SMACK64TRANSMUTE
[ 0.696693] evm: security.SMACK64MMAP
[ 0.696694] evm: security.ima
[ 0.696694] evm: security.capability
[ 0.696757] PM: Registering ACPI NVS region [mem 0x6056f000-0x6056ffff] (4096 bytes)
[ 0.696758] PM: Registering ACPI NVS region [mem 0x6f095000-0x6f9f9fff] (9850880 bytes)
[ 0.696918] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.696958] pinctrl core: initialized pinctrl subsystem
[ 0.697128] RTC time: 7:36:15, date: 11/08/16
[ 0.698250] NET: Registered protocol family 16
[ 0.713575] cpuidle: using governor ladder
[ 0.729587] cpuidle: using governor menu
[ 0.729589] PCCT header not found.
[ 0.729656] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
[ 0.729656] ACPI: bus type PCI registered
[ 0.729657] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[ 0.729721] PCI: MMCONFIG for domain 0000 [bus 00-7f] at [mem 0xf0000000-0xf7ffffff] (base 0xf0000000)
[ 0.729723] PCI: MMCONFIG at [mem 0xf0000000-0xf7ffffff] reserved in E820
[ 0.729731] PCI: Using configuration type 1 for base access
[ 0.729737] dmi type 0xB1 record - unknown flag
[ 0.745706] HugeTLB registered 1 GB page size, pre-allocated 0 pages
[ 0.745707] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 0.745901] ACPI: Added _OSI(Module Device)
[ 0.745901] ACPI: Added _OSI(Processor Device)
[ 0.745902] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.745903] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.747534] ACPI: Executed 38 blocks of module-level executable AML code
[ 0.759399] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.773705] ACPI: Dynamic OEM Table Load:
[ 0.773713] ACPI: SSDT 0xFFFF9770EE755000 000693 (v02 PmRef Cpu0Ist 00003000 INTL 20160422)
[ 0.773866] ACPI: Executed 1 blocks of module-level executable AML code
[ 0.773936] ACPI: \_PR_.CPU0: _OSC native thermal LVT Acked
[ 0.774878] ACPI: Dynamic OEM Table Load:
[ 0.774885] ACPI: SSDT 0xFFFF9770EE761800 0003FF (v02 PmRef Cpu0Cst 00003001 INTL 20160422)
[ 0.775021] ACPI: Executed 1 blocks of module-level executable AML code
[ 0.775419] ACPI: Dynamic OEM Table Load:
[ 0.775425] ACPI: SSDT 0xFFFF9770EE750800 00065C (v02 PmRef ApIst 00003000 INTL 20160422)
[ 0.775763] ACPI: Executed 1 blocks of module-level executable AML code
[ 0.775930] ACPI: Dynamic OEM Table Load:
[ 0.775935] ACPI: SSDT 0xFFFF9770EE7BB400 00018A (v02 PmRef ApCst 00003000 INTL 20160422)
[ 0.776066] ACPI: Executed 1 blocks of module-level executable AML code
[ 0.778379] ACPI : EC: EC started
[ 0.847402] ACPI: \_SB_.PCI0.LPCB.ECDV: Used as first EC
[ 0.847404] ACPI: \_SB_.PCI0.LPCB.ECDV: GPE=0x6e, EC_CMD/EC_SC=0x934, EC_DATA=0x930
[ 0.847405] ACPI: \_SB_.PCI0.LPCB.ECDV: Used as boot DSDT EC to handle transactions
[ 0.847405] ACPI: Interpreter enabled
[ 0.847452] ACPI: (supports S0 S3 S4 S5)
[ 0.847453] ACPI: Using IOAPIC for interrupt routing
[ 0.847492] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.862286] ACPI: Power Resource [PG00] (on)
[ 0.994232] ACPI: Power Resource [PG01] (on)
[ 0.994749] ACPI: Power Resource [PG02] (on)
[ 0.996636] ACPI: Power Resource [WRST] (on)
[ 0.997015] ACPI: Power Resource [WRST] (on)
[ 0.997394] ACPI: Power Resource [WRST] (on)
[ 0.997769] ACPI: Power Resource [WRST] (on)
[ 0.998154] ACPI: Power Resource [WRST] (on)
[ 0.998528] ACPI: Power Resource [WRST] (on)
[ 0.999203] ACPI: Power Resource [WRST] (on)
[ 0.999645] ACPI: Power Resource [WRST] (on)
[ 1.000023] ACPI: Power Resource [WRST] (on)
[ 1.000417] ACPI: Power Resource [WRST] (on)
[ 1.001008] ACPI: Power Resource [WRST] (on)
[ 1.001384] ACPI: Power Resource [WRST] (on)
[ 1.001760] ACPI: Power Resource [WRST] (on)
[ 1.002145] ACPI: Power Resource [WRST] (on)
[ 1.002520] ACPI: Power Resource [WRST] (on)
[ 1.002898] ACPI: Power Resource [WRST] (on)
[ 1.003273] ACPI: Power Resource [WRST] (on)
[ 1.004718] ACPI: Power Resource [WRST] (on)
[ 1.005099] ACPI: Power Resource [WRST] (on)
[ 1.005474] ACPI: Power Resource [WRST] (on)
[ 1.097849] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-7e])
[ 1.097854] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
[ 1.097887] acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM
[ 1.098582] PCI host bridge to bus 0000:00
[ 1.098584] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
[ 1.098585] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
[ 1.098586] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[ 1.098587] pci_bus 0000:00: root bus resource [mem 0x7c800000-0xefffffff window]
[ 1.098588] pci_bus 0000:00: root bus resource [mem 0xfd000000-0xfe7fffff window]
[ 1.098589] pci_bus 0000:00: root bus resource [bus 00-7e]
[ 1.098596] pci 0000:00:00.0: [8086:5918] type 00 class 0x060000
[ 1.098722] pci 0000:00:01.0: [8086:1901] type 01 class 0x060400
[ 1.098760] pci 0000:00:01.0: PME# supported from D0 D3hot D3cold
[ 1.098889] pci 0000:00:01.0: System wakeup disabled by ACPI
[ 1.098953] pci 0000:00:02.0: [8086:591d] type 00 class 0x030000
[ 1.098961] pci 0000:00:02.0: reg 0x10: [mem 0xeb000000-0xebffffff 64bit]
[ 1.098967] pci 0000:00:02.0: reg 0x18: [mem 0x80000000-0x8fffffff 64bit pref]
[ 1.098971] pci 0000:00:02.0: reg 0x20: [io 0xf000-0xf03f]
[ 1.099102] pci 0000:00:04.0: [8086:1903] type 00 class 0x118000
[ 1.099111] pci 0000:00:04.0: reg 0x10: [mem 0xed340000-0xed347fff 64bit]
[ 1.099320] pci 0000:00:14.0: [8086:a12f] type 00 class 0x0c0330
[ 1.099337] pci 0000:00:14.0: reg 0x10: [mem 0xed330000-0xed33ffff 64bit]
[ 1.099405] pci 0000:00:14.0: PME# supported from D3hot D3cold
[ 1.099590] pci 0000:00:14.0: System wakeup disabled by ACPI
[ 1.099626] pci 0000:00:14.2: [8086:a131] type 00 class 0x118000
[ 1.099642] pci 0000:00:14.2: reg 0x10: [mem 0xed359000-0xed359fff 64bit]
[ 1.099874] pci 0000:00:15.0: [8086:a160] type 00 class 0x118000
[ 1.100045] pci 0000:00:15.0: reg 0x10: [mem 0xed358000-0xed358fff 64bit]
[ 1.100956] pci 0000:00:15.1: [8086:a161] type 00 class 0x118000
[ 1.101164] pci 0000:00:15.1: reg 0x10: [mem 0xed357000-0xed357fff 64bit]
[ 1.101973] pci 0000:00:16.0: [8086:a13a] type 00 class 0x078000
[ 1.101991] pci 0000:00:16.0: reg 0x10: [mem 0xed356000-0xed356fff 64bit]
[ 1.102052] pci 0000:00:16.0: PME# supported from D3hot
[ 1.102194] pci 0000:00:16.3: [8086:a13d] type 00 class 0x070002
[ 1.102205] pci 0000:00:16.3: reg 0x10: [io 0xf0a0-0xf0a7]
[ 1.102210] pci 0000:00:16.3: reg 0x14: [mem 0xed355000-0xed355fff]
[ 1.102370] pci 0000:00:17.0: [8086:2822] type 00 class 0x010400
[ 1.102382] pci 0000:00:17.0: reg 0x10: [mem 0xed350000-0xed351fff]
[ 1.102389] pci 0000:00:17.0: reg 0x14: [mem 0xed354000-0xed3540ff]
[ 1.102396] pci 0000:00:17.0: reg 0x18: [io 0xf090-0xf097]
[ 1.102402] pci 0000:00:17.0: reg 0x1c: [io 0xf080-0xf083]
[ 1.102409] pci 0000:00:17.0: reg 0x20: [io 0xf060-0xf07f]
[ 1.102415] pci 0000:00:17.0: reg 0x24: [mem 0xed353000-0xed3537ff]
[ 1.102453] pci 0000:00:17.0: PME# supported from D3hot
[ 1.102605] pci 0000:00:1c.0: [8086:a111] type 01 class 0x060400
[ 1.102670] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
[ 1.102794] pci 0000:00:1c.0: System wakeup disabled by ACPI
[ 1.102838] pci 0000:00:1c.2: [8086:a112] type 01 class 0x060400
[ 1.102902] pci 0000:00:1c.2: PME# supported from D0 D3hot D3cold
[ 1.103023] pci 0000:00:1c.2: System wakeup disabled by ACPI
[ 1.103067] pci 0000:00:1c.4: [8086:a114] type 01 class 0x060400
[ 1.103132] pci 0000:00:1c.4: PME# supported from D0 D3hot D3cold
[ 1.103253] pci 0000:00:1c.4: System wakeup disabled by ACPI
[ 1.103299] pci 0000:00:1f.0: [8086:a154] type 00 class 0x060100
[ 1.103494] pci 0000:00:1f.2: [8086:a121] type 00 class 0x058000
[ 1.103505] pci 0000:00:1f.2: reg 0x10: [mem 0xed34c000-0xed34ffff]
[ 1.103692] pci 0000:00:1f.3: [8086:a171] type 00 class 0x040300
[ 1.103714] pci 0000:00:1f.3: reg 0x10: [mem 0xed348000-0xed34bfff 64bit]
[ 1.103745] pci 0000:00:1f.3: reg 0x20: [mem 0xed320000-0xed32ffff 64bit]
[ 1.103797] pci 0000:00:1f.3: PME# supported from D3hot D3cold
[ 1.103971] pci 0000:00:1f.3: System wakeup disabled by ACPI
[ 1.104008] pci 0000:00:1f.4: [8086:a123] type 00 class 0x0c0500
[ 1.104055] pci 0000:00:1f.4: reg 0x10: [mem 0xed352000-0xed3520ff 64bit]
[ 1.104126] pci 0000:00:1f.4: reg 0x20: [io 0xf040-0xf05f]
[ 1.104331] pci 0000:00:1f.6: [8086:15e3] type 00 class 0x020000
[ 1.104352] pci 0000:00:1f.6: reg 0x10: [mem 0xed300000-0xed31ffff]
[ 1.104464] pci 0000:00:1f.6: PME# supported from D0 D3hot D3cold
[ 1.105090] pci 0000:00:1f.6: System wakeup disabled by ACPI
[ 1.105180] pci 0000:01:00.0: [10de:13b4] type 00 class 0x030200
[ 1.105199] pci 0000:01:00.0: reg 0x10: [mem 0xec000000-0xecffffff]
[ 1.105216] pci 0000:01:00.0: reg 0x14: [mem 0xc0000000-0xcfffffff 64bit pref]
[ 1.105233] pci 0000:01:00.0: reg 0x1c: [mem 0xd0000000-0xd1ffffff 64bit pref]
[ 1.105244] pci 0000:01:00.0: reg 0x24: [io 0xe000-0xe07f]
[ 1.105255] pci 0000:01:00.0: reg 0x30: [mem 0xed000000-0xed07ffff pref]
[ 1.105381] pci 0000:01:00.0: System wakeup disabled by ACPI
[ 1.114389] pci 0000:00:01.0: PCI bridge to [bus 01]
[ 1.114391] pci 0000:00:01.0: bridge window [io 0xe000-0xefff]
[ 1.114393] pci 0000:00:01.0: bridge window [mem 0xec000000-0xed0fffff]
[ 1.114396] pci 0000:00:01.0: bridge window [mem 0xc0000000-0xd1ffffff 64bit pref]
[ 1.114778] pci 0000:02:00.0: [8086:24fd] type 00 class 0x028000
[ 1.114855] pci 0000:02:00.0: reg 0x10: [mem 0xed200000-0xed201fff 64bit]
[ 1.115307] pci 0000:02:00.0: PME# supported from D0 D3hot D3cold
[ 1.115503] pci 0000:02:00.0: System wakeup disabled by ACPI
[ 1.126664] pci 0000:00:1c.0: PCI bridge to [bus 02]
[ 1.126668] pci 0000:00:1c.0: bridge window [mem 0xed200000-0xed2fffff]
[ 1.126858] pci 0000:03:00.0: [10ec:525a] type 00 class 0xff0000
[ 1.126880] pci 0000:03:00.0: reg 0x14: [mem 0xed100000-0xed100fff]
[ 1.127040] pci 0000:03:00.0: supports D1 D2
[ 1.127041] pci 0000:03:00.0: PME# supported from D1 D2 D3hot D3cold
[ 1.127128] pci 0000:03:00.0: System wakeup disabled by ACPI
[ 1.138484] pci 0000:00:1c.2: PCI bridge to [bus 03]
[ 1.138488] pci 0000:00:1c.2: bridge window [mem 0xed100000-0xed1fffff]
[ 1.138609] pci 0000:00:1c.4: PCI bridge to [bus 04-3c]
[ 1.138613] pci 0000:00:1c.4: bridge window [mem 0xd4000000-0xea0fffff]
[ 1.138617] pci 0000:00:1c.4: bridge window [mem 0x90000000-0xb1ffffff 64bit pref]
[ 1.187111] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 1.187178] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 *10 11 12 14 15)
[ 1.187225] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 1.187285] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 1.187343] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 1.187387] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 1.187456] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 1.187523] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 1.203669] ACPI: Enabled 5 GPEs in block 00 to 7F
[ 1.203764] ACPI : EC: event unblocked
[ 1.203784] ACPI: \_SB_.PCI0.LPCB.ECDV: GPE=0x6e, EC_CMD/EC_SC=0x934, EC_DATA=0x930
[ 1.203785] ACPI: \_SB_.PCI0.LPCB.ECDV: Used as boot DSDT EC to handle transactions and events
[ 1.204169] vgaarb: setting as boot device: PCI:0000:00:02.0
[ 1.204170] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[ 1.204173] vgaarb: loaded
[ 1.204173] vgaarb: bridge control possible 0000:00:02.0
[ 1.204303] SCSI subsystem initialized
[ 1.204333] libata version 3.00 loaded.
[ 1.204349] ACPI: bus type USB registered
[ 1.204361] usbcore: registered new interface driver usbfs
[ 1.204367] usbcore: registered new interface driver hub
[ 1.204383] usbcore: registered new device driver usb
[ 1.204438] Registered efivars operations
[ 1.209007] PCI: Using ACPI for IRQ routing
[ 1.218259] PCI: pci_cache_line_size set to 64 bytes
[ 1.218988] e820: reserve RAM buffer [mem 0x00058000-0x0005ffff]
[ 1.218989] e820: reserve RAM buffer [mem 0x0009f000-0x0009ffff]
[ 1.218990] e820: reserve RAM buffer [mem 0x6056f000-0x63ffffff]
[ 1.218991] e820: reserve RAM buffer [mem 0x6ec92000-0x6fffffff]
[ 1.218992] e820: reserve RAM buffer [mem 0x78600000-0x7bffffff]
[ 1.218993] e820: reserve RAM buffer [mem 0x481800000-0x483ffffff]
[ 1.219285] NetLabel: Initializing
[ 1.219285] NetLabel: domain hash size = 128
[ 1.219286] NetLabel: protocols = UNLABELED CIPSOv4
[ 1.219297] NetLabel: unlabeled traffic allowed by default
[ 1.219416] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
[ 1.219420] hpet0: 8 comparators, 64-bit 24.000000 MHz counter
[ 1.221702] clocksource: Switched to clocksource hpet
[ 1.228132] VFS: Disk quotas dquot_6.6.0
[ 1.228144] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 1.228198] AppArmor: AppArmor Filesystem Enabled
[ 1.228230] pnp: PnP ACPI init
[ 1.235946] system 00:00: [io 0x0680-0x069f] has been reserved
[ 1.235948] system 00:00: [io 0xffff] has been reserved
[ 1.235949] system 00:00: [io 0xffff] has been reserved
[ 1.235950] system 00:00: [io 0xffff] has been reserved
[ 1.235951] system 00:00: [io 0x1800-0x18fe] has been reserved
[ 1.235952] system 00:00: [io 0x164e-0x164f] has been reserved
[ 1.235955] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 1.236055] system 00:01: [io 0x0800-0x087f] has been reserved
[ 1.236057] system 00:01: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 1.236077] pnp 00:02: Plug and Play ACPI device, IDs PNP0b00 (active)
[ 1.236113] system 00:03: [io 0x1854-0x1857] has been reserved
[ 1.236115] system 00:03: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
[ 1.236221] pnp 00:04: Plug and Play ACPI device, IDs PNP0303 (active)
[ 1.236458] system 00:05: [mem 0xfed10000-0xfed17fff] has been reserved
[ 1.236459] system 00:05: [mem 0xfed18000-0xfed18fff] has been reserved
[ 1.236460] system 00:05: [mem 0xfed19000-0xfed19fff] has been reserved
[ 1.236461] system 00:05: [mem 0xf0000000-0xf7ffffff] has been reserved
[ 1.236462] system 00:05: [mem 0xfed20000-0xfed3ffff] has been reserved
[ 1.236463] system 00:05: [mem 0xfed90000-0xfed93fff] could not be reserved
[ 1.236465] system 00:05: [mem 0xfed45000-0xfed8ffff] has been reserved
[ 1.236466] system 00:05: [mem 0xff000000-0xffffffff] has been reserved
[ 1.236467] system 00:05: [mem 0xfee00000-0xfeefffff] could not be reserved
[ 1.236468] system 00:05: [mem 0xeffe0000-0xefffffff] has been reserved
[ 1.236470] system 00:05: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 1.236511] system 00:06: [mem 0xfd000000-0xfdabffff] has been reserved
[ 1.236512] system 00:06: [mem 0xfdad0000-0xfdadffff] has been reserved
[ 1.236513] system 00:06: [mem 0xfdb00000-0xfdffffff] has been reserved
[ 1.236514] system 00:06: [mem 0xfe000000-0xfe01ffff] could not be reserved
[ 1.236515] system 00:06: [mem 0xfe036000-0xfe03bfff] has been reserved
[ 1.236516] system 00:06: [mem 0xfe03d000-0xfe3fffff] has been reserved
[ 1.236517] system 00:06: [mem 0xfe410000-0xfe7fffff] has been reserved
[ 1.236519] system 00:06: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 1.236832] system 00:07: [io 0xff00-0xfffe] has been reserved
[ 1.236834] system 00:07: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 1.238026] system 00:08: [mem 0xfdaf0000-0xfdafffff] has been reserved
[ 1.238027] system 00:08: [mem 0xfdae0000-0xfdaeffff] has been reserved
[ 1.238028] system 00:08: [mem 0xfdac0000-0xfdacffff] has been reserved
[ 1.238030] system 00:08: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 1.246927] pnp: PnP ACPI: found 9 devices
[ 1.254533] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[ 1.254569] pci 0000:00:1c.4: bridge window [io 0x1000-0x0fff] to [bus 04-3c] add_size 1000
[ 1.254572] pci 0000:00:1c.4: res[13]=[io 0x1000-0x0fff] res_to_dev_res add_size 1000 min_align 1000
[ 1.254573] pci 0000:00:1c.4: res[13]=[io 0x1000-0x1fff] res_to_dev_res add_size 1000 min_align 1000
[ 1.254576] pci 0000:00:1c.4: BAR 13: assigned [io 0x2000-0x2fff]
[ 1.254577] pci 0000:00:01.0: PCI bridge to [bus 01]
[ 1.254579] pci 0000:00:01.0: bridge window [io 0xe000-0xefff]
[ 1.254581] pci 0000:00:01.0: bridge window [mem 0xec000000-0xed0fffff]
[ 1.254583] pci 0000:00:01.0: bridge window [mem 0xc0000000-0xd1ffffff 64bit pref]
[ 1.254587] pci 0000:00:1c.0: PCI bridge to [bus 02]
[ 1.254600] pci 0000:00:1c.0: bridge window [mem 0xed200000-0xed2fffff]
[ 1.254605] pci 0000:00:1c.2: PCI bridge to [bus 03]
[ 1.254609] pci 0000:00:1c.2: bridge window [mem 0xed100000-0xed1fffff]
[ 1.254614] pci 0000:00:1c.4: PCI bridge to [bus 04-3c]
[ 1.254617] pci 0000:00:1c.4: bridge window [io 0x2000-0x2fff]
[ 1.254620] pci 0000:00:1c.4: bridge window [mem 0xd4000000-0xea0fffff]
[ 1.254623] pci 0000:00:1c.4: bridge window [mem 0x90000000-0xb1ffffff 64bit pref]
[ 1.254628] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window]
[ 1.254629] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window]
[ 1.254630] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
[ 1.254631] pci_bus 0000:00: resource 7 [mem 0x7c800000-0xefffffff window]
[ 1.254632] pci_bus 0000:00: resource 8 [mem 0xfd000000-0xfe7fffff window]
[ 1.254633] pci_bus 0000:01: resource 0 [io 0xe000-0xefff]
[ 1.254634] pci_bus 0000:01: resource 1 [mem 0xec000000-0xed0fffff]
[ 1.254635] pci_bus 0000:01: resource 2 [mem 0xc0000000-0xd1ffffff 64bit pref]
[ 1.254636] pci_bus 0000:02: resource 1 [mem 0xed200000-0xed2fffff]
[ 1.254637] pci_bus 0000:03: resource 1 [mem 0xed100000-0xed1fffff]
[ 1.254638] pci_bus 0000:04: resource 0 [io 0x2000-0x2fff]
[ 1.254638] pci_bus 0000:04: resource 1 [mem 0xd4000000-0xea0fffff]
[ 1.254639] pci_bus 0000:04: resource 2 [mem 0x90000000-0xb1ffffff 64bit pref]
[ 1.254779] NET: Registered protocol family 2
[ 1.254924] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
[ 1.255092] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[ 1.255192] TCP: Hash tables configured (established 131072 bind 65536)
[ 1.255214] UDP hash table entries: 8192 (order: 6, 262144 bytes)
[ 1.255250] UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
[ 1.255303] NET: Registered protocol family 1
[ 1.255314] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[ 1.257144] PCI: CLS 0 bytes, default 64
[ 1.257180] Trying to unpack rootfs image as initramfs...
[ 1.822691] Freeing initrd memory: 35844K (ffff976cb39ee000 - ffff976cb5cef000)
[ 1.822734] DMAR: ACPI device "device:79" under DMAR at fed91000 as 00:15.0
[ 1.822737] DMAR: ACPI device "device:7a" under DMAR at fed91000 as 00:15.1
[ 1.822748] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[ 1.822750] software IO TLB [mem 0x5a95d000-0x5e95d000] (64MB) mapped at [ffff976cda95d000-ffff976cde95cfff]
[ 1.822858] Scanning for low memory corruption every 60 seconds
[ 1.823254] futex hash table entries: 2048 (order: 5, 131072 bytes)
[ 1.823275] audit: initializing netlink subsys (disabled)
[ 1.823285] audit: type=2000 audit(1478590575.808:1): initialized
[ 1.823610] Initialise system trusted keyrings
[ 1.823740] workingset: timestamp_bits=40 max_order=22 bucket_order=0
[ 1.825048] zbud: loaded
[ 1.825413] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 1.825620] fuse init (API version 7.26)
[ 1.825770] Allocating IMA blacklist keyring.
[ 1.828190] Key type asymmetric registered
[ 1.828191] Asymmetric key parser 'x509' registered
[ 1.828218] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248)
[ 1.828270] io scheduler noop registered
[ 1.828271] io scheduler deadline registered (default)
[ 1.828277] io scheduler cfq registered
[ 1.829005] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 1.829008] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[ 1.829040] efifb: probing for efifb
[ 1.829051] efifb: framebuffer at 0x80000000, using 8128k, total 8128k
[ 1.829052] efifb: mode is 1920x1080x32, linelength=7680, pages=1
[ 1.829052] efifb: scrolling: redraw
[ 1.829053] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0
[ 1.833083] Console: switching to colour frame buffer device 240x67
[ 1.836983] fb0: EFI VGA frame buffer device
[ 1.836989] intel_idle: MWAIT substates: 0x11142120
[ 1.836990] intel_idle: v0.4.1 model 0x9E
[ 1.837411] intel_idle: lapic_timer_reliable_states 0xffffffff
[ 1.841921] ACPI: AC Adapter [AC] (on-line)
[ 1.849938] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
[ 1.858082] ACPI: Lid Switch [LID0]
[ 1.858115] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1
[ 1.858117] ACPI: Power Button [PBTN]
[ 1.858145] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input2
[ 1.858146] ACPI: Sleep Button [SBTN]
[ 1.858174] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3
[ 1.858175] ACPI: Power Button [PWRF]
[ 1.875471] thermal LNXTHERM:00: registered as thermal_zone0
[ 1.875472] ACPI: Thermal Zone [THM] (25 C)
[ 1.875507] GHES: HEST is not enabled!
[ 1.875659] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled
[ 1.877782] serial 0000:00:16.3: enabling device (0000 -> 0003)
[ 1.898409] 0000:00:16.3: ttyS4 at I/O 0xf0a0 (irq = 19, base_baud = 115200) is a 16550A
[ 1.899242] Linux agpgart interface v0.103
[ 2.038315] random: fast init done
[ 2.189924] ACPI: Battery Slot [BAT0] (battery present)
[ 2.238033] tpm_tis MSFT0101:00: 2.0 TPM (device-id 0xFE, rev-id 4)
[ 2.825954] tsc: Refined TSC clocksource calibration: 3000.029 MHz
[ 2.825966] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x2b3e610071a, max_idle_ns: 440795299465 ns
[ 3.218371] brd: module loaded
[ 3.219689] loop: module loaded
[ 3.219840] libphy: Fixed MDIO Bus: probed
[ 3.219841] tun: Universal TUN/TAP device driver, 1.6
[ 3.219841] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[ 3.219879] PPP generic driver version 2.4.2
[ 3.219925] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.219926] ehci-pci: EHCI PCI platform driver
[ 3.219935] ehci-platform: EHCI generic platform driver
[ 3.219946] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 3.219947] ohci-pci: OHCI PCI platform driver
[ 3.219954] ohci-platform: OHCI generic platform driver
[ 3.219959] uhci_hcd: USB Universal Host Controller Interface driver
[ 3.220161] xhci_hcd 0000:00:14.0: xHCI Host Controller
[ 3.220166] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1
[ 3.221269] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x00109810
[ 3.221273] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported
[ 3.221274] xhci_hcd 0000:00:14.0: supports USB remote wakeup
[ 3.221366] usb usb1: default language 0x0409
[ 3.221373] usb usb1: udev 1, busnum 1, minor = 0
[ 3.221374] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.221375] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.221376] usb usb1: Product: xHCI Host Controller
[ 3.221377] usb usb1: Manufacturer: Linux 4.9.0-999-generic xhci-hcd
[ 3.221378] usb usb1: SerialNumber: 0000:00:14.0
[ 3.221466] usb usb1: usb_probe_device
[ 3.221467] usb usb1: configuration #1 chosen from 1 choice
[ 3.221474] usb usb1: adding 1-0:1.0 (config #1, interface 0)
[ 3.221491] hub 1-0:1.0: usb_probe_interface
[ 3.221492] hub 1-0:1.0: usb_probe_interface - got id
[ 3.221494] hub 1-0:1.0: USB hub found
[ 3.221519] hub 1-0:1.0: 16 ports detected
[ 3.221520] hub 1-0:1.0: standalone hub
[ 3.221521] hub 1-0:1.0: no power switching (usb 1.0)
[ 3.221521] hub 1-0:1.0: individual port over-current protection
[ 3.221522] hub 1-0:1.0: Single TT
[ 3.221523] hub 1-0:1.0: TT requires at most 8 FS bit times (666 ns)
[ 3.221524] hub 1-0:1.0: power on to power good time: 20ms
[ 3.221528] hub 1-0:1.0: local power source is good
[ 3.235283] usb usb1-port6: DeviceRemovable is changed to 1 according to platform information.
[ 3.235284] usb usb1-port8: DeviceRemovable is changed to 1 according to platform information.
[ 3.235285] usb usb1-port9: DeviceRemovable is changed to 1 according to platform information.
[ 3.235285] usb usb1-port10: DeviceRemovable is changed to 1 according to platform information.
[ 3.235286] usb usb1-port11: DeviceRemovable is changed to 1 according to platform information.
[ 3.235287] hub 1-0:1.0: trying to enable port power on non-switchable hub
[ 3.235412] xhci_hcd 0000:00:14.0: xHCI Host Controller
[ 3.235414] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2
[ 3.235416] xhci_hcd 0000:00:14.0: supports USB remote wakeup
[ 3.235438] usb usb2: skipped 1 descriptor after endpoint
[ 3.235441] usb usb2: default language 0x0409
[ 3.235447] usb usb2: udev 1, busnum 2, minor = 128
[ 3.235448] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
[ 3.235449] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.235450] usb usb2: Product: xHCI Host Controller
[ 3.235451] usb usb2: Manufacturer: Linux 4.9.0-999-generic xhci-hcd
[ 3.235452] usb usb2: SerialNumber: 0000:00:14.0
[ 3.235565] usb usb2: usb_probe_device
[ 3.235566] usb usb2: configuration #1 chosen from 1 choice
[ 3.235573] usb usb2: adding 2-0:1.0 (config #1, interface 0)
[ 3.235590] hub 2-0:1.0: usb_probe_interface
[ 3.235591] hub 2-0:1.0: usb_probe_interface - got id
[ 3.235592] hub 2-0:1.0: USB hub found
[ 3.235614] hub 2-0:1.0: 10 ports detected
[ 3.235615] hub 2-0:1.0: standalone hub
[ 3.235616] hub 2-0:1.0: no power switching (usb 1.0)
[ 3.235616] hub 2-0:1.0: individual port over-current protection
[ 3.235617] hub 2-0:1.0: TT requires at most 8 FS bit times (666 ns)
[ 3.235618] hub 2-0:1.0: power on to power good time: 20ms
[ 3.235622] hub 2-0:1.0: local power source is good
[ 3.236488] usb usb2-port1: peered to usb1-port1
[ 3.237350] usb usb2-port2: peered to usb1-port8
[ 3.238241] usb usb2-port3: peered to usb1-port2
[ 3.239097] usb usb2-port4: peered to usb1-port3
[ 3.239983] usb usb2-port5: peered to usb1-port4
[ 3.240836] usb: failed to peer usb2-port6 and usb1-port4 by location (usb2-port6:none) (usb1-port4:usb2-port5)
[ 3.240837] usb usb2-port6: failed to peer to usb1-port4 (-16)
[ 3.240838] usb: port power management may be unreliable
[ 3.241686] usb: failed to peer usb2-port7 and usb1-port4 by location (usb2-port7:none) (usb1-port4:usb2-port5)
[ 3.241687] usb usb2-port7: failed to peer to usb1-port4 (-16)
[ 3.242569] usb: failed to peer usb2-port8 and usb1-port4 by location (usb2-port8:none) (usb1-port4:usb2-port5)
[ 3.242570] usb usb2-port8: failed to peer to usb1-port4 (-16)
[ 3.243419] usb: failed to peer usb2-port9 and usb1-port4 by location (usb2-port9:none) (usb1-port4:usb2-port5)
[ 3.243419] usb usb2-port9: failed to peer to usb1-port4 (-16)
[ 3.244270] usb: failed to peer usb2-port10 and usb1-port4 by location (usb2-port10:none) (usb1-port4:usb2-port5)
[ 3.244271] usb usb2-port10: failed to peer to usb1-port4 (-16)
[ 3.244274] usb usb2-port2: DeviceRemovable is changed to 1 according to platform information.
[ 3.244275] hub 2-0:1.0: trying to enable port power on non-switchable hub
[ 3.244541] i8042: PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1
[ 3.244542] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp
[ 3.245023] i8042: Warning: Keylock active
[ 3.245235] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 3.245402] mousedev: PS/2 mouse device common for all mice
[ 3.245659] rtc_cmos 00:02: RTC can wake from S4
[ 3.246261] rtc_cmos 00:02: rtc core: registered rtc_cmos as rtc0
[ 3.246383] rtc_cmos 00:02: alarms up to one month, y3k, 242 bytes nvram, hpet irqs
[ 3.246388] i2c /dev entries driver
[ 3.246433] device-mapper: uevent: version 1.0.3
[ 3.246554] device-mapper: ioctl: 4.35.0-ioctl (2016-06-23) initialised: dm-devel@redhat.com
[ 3.246557] intel_pstate: Intel P-state driver initializing
[ 3.246687] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4
[ 3.247518] intel_pstate: HWP enabled
[ 3.247925] ledtrig-cpu: registered to indicate activity on CPUs
[ 3.247927] EFI Variables Facility v0.08 2004-May-17
[ 3.253215] NET: Registered protocol family 10
[ 3.253430] NET: Registered protocol family 17
[ 3.253433] Key type dns_resolver registered
[ 3.253630] microcode: sig=0x906e9, pf=0x20, revision=0x42
[ 3.253870] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[ 3.254238] registered taskstats version 1
[ 3.254243] Loading compiled-in X.509 certificates
[ 3.256377] Loaded X.509 cert 'Build time autogenerated kernel key: 45536368857fd519e2188e90024d8ecfe91080d7'
[ 3.256387] zswap: loaded using pool lzo/zbud
[ 3.259405] Key type big_key registered
[ 3.260931] Key type trusted registered
[ 3.262657] Key type encrypted registered
[ 3.262659] AppArmor: AppArmor sha1 policy hashing enabled
[ 3.338281] usb usb1-port6: status 0101 change 0001
[ 3.338569] usb usb1-port9: status 0101 change 0001
[ 3.338710] usb usb1-port10: status 0101 change 0001
[ 3.338860] usb usb1-port11: status 0101 change 0001
[ 3.346137] usb usb2-port2: status 0203 change 0010
[ 3.441889] hub 1-0:1.0: state 7 ports 16 chg 0e40 evt 0000
[ 3.441907] usb usb1-port6: status 0101, change 0000, 12 Mb/s
[ 3.449891] hub 2-0:1.0: state 7 ports 10 chg 0004 evt 0000
[ 3.449909] usb usb2-port2: status 0203, change 0000, 5.0 Gb/s
[ 3.561896] usb 1-6: new full-speed USB device number 2 using xhci_hcd
[ 3.581984] evm: HMAC attrs: 0x1
[ 3.583427] Magic number: 8:951:621
[ 3.583456] platform INT0E0C:00: hash matches
[ 3.583461] acpi INT0E0C:00: hash matches
[ 3.583646] rtc_cmos 00:02: setting system clock to 2016-11-08 07:36:17 UTC (1478590577)
[ 3.583876] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 3.583876] EDD information not available.
[ 3.583920] PM: Hibernation image not present or could not be loaded.
[ 3.584672] Freeing unused kernel memory: 1564K (ffffffffa536a000 - ffffffffa54f1000)
[ 3.584673] Write protecting the kernel read-only data: 14336k
[ 3.585022] Freeing unused kernel memory: 1452K (ffff976f68895000 - ffff976f68a00000)
[ 3.585333] Freeing unused kernel memory: 208K (ffff976f68dcc000 - ffff976f68e00000)
[ 3.589228] x86/mm: Checked W+X mappings: passed, no W+X pages found.
[ 3.679510] FUJITSU Extended Socket Network Device Driver - version 1.1 - Copyright (c) 2015 FUJITSU LIMITED
[ 3.693785] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.698250] rtsx_pci 0000:03:00.0: enabling device (0000 -> 0002)
[ 3.698549] rtsx_pci 0000:03:00.0: rtsx_pci_acquire_irq: pcr->msi_en = 1, pci->irq = 124
[ 3.698859] [drm] Initialized
[ 3.698948] ahci 0000:00:17.0: version 3.0
[ 3.699082] pps_core: LinuxPPS API ver. 1 registered
[ 3.699082] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 3.699131] ahci 0000:00:17.0: controller can't do SNTF, turning off CAP_SNTF
[ 3.699170] ahci 0000:00:17.0: SSS flag set, parallel bus scan disabled
[ 3.699957] PTP clock support registered
[ 3.702598] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 3.702598] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 3.709332] ahci 0000:00:17.0: AHCI 0001.0301 32 slots 2 ports 6 Gbps 0x5 impl RAID mode
[ 3.709333] ahci 0000:00:17.0: flags: 64bit ncq stag pm led clo only pio slum part ems deso sadm sds apst
[ 3.714757] usb 1-6: udev 2, busnum 1, minor = 1
[ 3.714759] usb 1-6: New USB device found, idVendor=8087, idProduct=0a2b
[ 3.714760] usb 1-6: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.714852] usb 1-6: usb_probe_device
[ 3.714853] usb 1-6: configuration #1 chosen from 1 choice
[ 3.715210] usb 1-6: adding 1-6:1.0 (config #1, interface 0)
[ 3.715244] usb 1-6: adding 1-6:1.1 (config #1, interface 1)
[ 3.715295] usb usb1-port9: status 0101, change 0000, 12 Mb/s
[ 3.722127] scsi host0: ahci
[ 3.722290] scsi host1: ahci
[ 3.722396] scsi host2: ahci
[ 3.722448] ata1: SATA max UDMA/133 abar m2048@0xed353000 port 0xed353100 irq 16
[ 3.722449] ata2: DUMMY
[ 3.722453] ata3: SATA max UDMA/133 abar m2048@0xed353000 port 0xed353200 irq 16
[ 3.722735] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[ 3.840439] usb 2-2: new SuperSpeed USB device number 2 using xhci_hcd
[ 3.849770] e1000e 0000:00:1f.6 0000:00:1f.6 (uninitialized): registered PHC clock
[ 3.850029] clocksource: Switched to clocksource tsc
[ 3.862253] usb 2-2: config 1 has an invalid interface number: 12 but max is 1
[ 3.862254] usb 2-2: config 1 has an invalid interface number: 13 but max is 1
[ 3.862254] usb 2-2: config 1 has an invalid interface number: 13 but max is 1
[ 3.862255] usb 2-2: config 1 has no interface number 0
[ 3.862256] usb 2-2: config 1 has no interface number 1
[ 3.862257] usb 2-2: skipped 1 descriptor after configuration
[ 3.862258] usb 2-2: skipped 4 descriptors after interface
[ 3.862259] usb 2-2: skipped 1 descriptor after endpoint
[ 3.862260] usb 2-2: skipped 1 descriptor after endpoint
[ 3.862260] usb 2-2: skipped 2 descriptors after endpoint
[ 3.862548] usb 2-2: default language 0x0409
[ 3.863293] usb 2-2: udev 2, busnum 2, minor = 129
[ 3.863295] usb 2-2: New USB device found, idVendor=413c, idProduct=81b6
[ 3.863295] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3.863296] usb 2-2: Product: DW5811e Snapdragon™ X7 LTE
[ 3.863297] usb 2-2: Manufacturer: Sierra Wireless, Incorporated
[ 3.863297] usb 2-2: SerialNumber: LF62214467031013
[ 3.863439] usb 2-2: usb_probe_device
[ 3.863441] usb 2-2: configuration #1 chosen from 1 choice
[ 3.864990] usb 2-2: Enable of device-initiated U1 failed.
[ 3.865492] usb 2-2: Enable of device-initiated U2 failed.
[ 3.865494] usb 2-2: adding 2-2:1.12 (config #1, interface 12)
[ 3.865571] usb 2-2: adding 2-2:1.13 (config #1, interface 13)
[ 3.936647] e1000e 0000:00:1f.6 eth0: (PCI Express:2.5GT/s:Width x1) 18:db:f2:24:d2:14
[ 3.936648] e1000e 0000:00:1f.6 eth0: Intel(R) PRO/1000 Network Connection
[ 3.936732] e1000e 0000:00:1f.6 eth0: MAC: 12, PHY: 12, PBA No: FFFFFF-0FF
[ 3.937279] e1000e 0000:00:1f.6 enp0s31f6: renamed from eth0
[ 3.937405] [drm] Memory usable by graphics device = 4096M
[ 3.937406] checking generic (80000000 7f0000) vs hw (80000000 10000000)
[ 3.937406] fb: switching to inteldrmfb from EFI VGA
[ 3.937418] Console: switching to colour dummy device 80x25
[ 3.937488] [drm] Replacing VGA console driver
[ 3.943365] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 3.943365] [drm] Driver supports precise vblank timestamp query.
[ 3.952001] i915 0000:00:02.0: Direct firmware load for i915/kbl_dmc_ver1_01.bin failed with error -2
[ 3.952002] i915 0000:00:02.0: Failed to load DMC firmware [https://01.org/linuxgraphics/intel-linux-graphics-firmwares], disabling runtime power management.
[ 3.952749] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[ 3.959519] [drm] GuC firmware load skipped
[ 3.977806] usb 1-9: new full-speed USB device number 3 using xhci_hcd
[ 4.037255] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 4.038020] ata1.00: ACPI cmd ef/10:06:00:00:00:00 (SET FEATURES) succeeded
[ 4.038021] ata1.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out
[ 4.038022] ata1.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION OVERLAY) filtered out
[ 4.038138] ata1.00: ACPI cmd 00/00:00:00:00:00:a0 (NOP) rejected by device (Stat=0x51 Err=0x04)
[ 4.038556] ata1.00: ATA-8: LITEON CV3-8D512-11 SATA 512GB, T89110C, max UDMA/133
[ 4.038557] ata1.00: 1000215216 sectors, multi 0: LBA48 NCQ (depth 31/32), AA
[ 4.039266] ata1.00: ACPI cmd ef/10:06:00:00:00:00 (SET FEATURES) succeeded
[ 4.039267] ata1.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out
[ 4.039268] ata1.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION OVERLAY) filtered out
[ 4.039307] ata1.00: ACPI cmd 00/00:00:00:00:00:a0 (NOP) rejected by device (Stat=0x51 Err=0x04)
[ 4.039538] ata1.00: configured for UDMA/133
[ 4.040844] scsi 0:0:0:0: Direct-Access ATA LITEON CV3-8D512 10C PQ: 0 ANSI: 5
[ 4.074088] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 4.074153] sd 0:0:0:0: [sda] 1000215216 512-byte logical blocks: (512 GB/477 GiB)
[ 4.074558] sd 0:0:0:0: [sda] Write Protect is off
[ 4.074559] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 4.074663] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 4.077497] sda: sda1 sda2 sda3 sda4
[ 4.078201] sd 0:0:0:0: [sda] Attached SCSI disk
[ 4.119549] usb 1-9: skipped 1 descriptor after interface
[ 4.119788] usb 1-9: default language 0x0409
[ 4.120243] usb 1-9: udev 3, busnum 1, minor = 2
[ 4.120245] usb 1-9: New USB device found, idVendor=2386, idProduct=3114
[ 4.120245] usb 1-9: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 4.120258] usb 1-9: Product: Raydium Touch System
[ 4.120259] usb 1-9: Manufacturer: Raydium Corporation
[ 4.120399] usb 1-9: usb_probe_device
[ 4.120400] usb 1-9: configuration #1 chosen from 1 choice
[ 4.120972] usb 1-9: adding 1-9:1.0 (config #1, interface 0)
[ 4.121047] usb usb1-port10: status 0101, change 0000, 12 Mb/s
[ 4.233818] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
[ 4.234634] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input5
[ 4.234758] ACPI: Video Device [PEGP] (multi-head: no rom: yes post: no)
[ 4.234785] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:0a/LNXVIDEO:01/input/input6
[ 4.234939] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
[ 4.237795] usb 1-10: new high-speed USB device number 4 using xhci_hcd
[ 4.390813] ata3: SATA link down (SStatus 4 SControl 300)
[ 4.393458] usb 1-10: skipped 1 descriptor after interface
[ 4.393460] usb 1-10: config 0 interface 0 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 64
[ 4.393461] usb 1-10: config 0 interface 0 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 64
[ 4.393462] usb 1-10: skipped 1 descriptor after interface
[ 4.393463] usb 1-10: config 0 interface 1 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 64
[ 4.393463] usb 1-10: config 0 interface 1 altsetting 0 bulk endpoint 0x2 has invalid maxpacket 64
[ 4.393464] usb 1-10: skipped 1 descriptor after interface
[ 4.393465] usb 1-10: config 0 interface 2 altsetting 0 bulk endpoint 0x83 has invalid maxpacket 64
[ 4.393465] usb 1-10: config 0 interface 2 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 64
[ 4.393466] usb 1-10: skipped 1 descriptor after interface
[ 4.393479] usb 1-10: config 0 interface 3 altsetting 0 bulk endpoint 0x84 has invalid maxpacket 64
[ 4.393480] usb 1-10: config 0 interface 3 altsetting 0 bulk endpoint 0x4 has invalid maxpacket 64
[ 4.397527] usb 1-10: default language 0x0409
[ 4.409289] usb 1-10: udev 4, busnum 1, minor = 3
[ 4.409291] usb 1-10: New USB device found, idVendor=0a5c, idProduct=5834
[ 4.409291] usb 1-10: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 4.409292] usb 1-10: Product: 5880
[ 4.409293] usb 1-10: Manufacturer: Broadcom Corp
[ 4.409293] usb 1-10: SerialNumber: 0123456789ABCD
[ 4.409447] usb 1-10: usb_probe_device
[ 4.409448] usb 1-10: configuration #0 chosen from 1 choice
[ 4.409449] usb 1-10: config 0 descriptor??
[ 4.410128] usb 1-10: adding 1-10:0.0 (config #0, interface 0)
[ 4.417237] usb 1-10: adding 1-10:0.1 (config #0, interface 1)
[ 4.421408] usb 1-10: adding 1-10:0.2 (config #0, interface 2)
[ 4.425282] usb 1-10: adding 1-10:0.3 (config #0, interface 3)
[ 4.429303] usb usb1-port11: status 0101, change 0000, 12 Mb/s
[ 4.489758] fbcon: inteldrmfb (fb0) is primary device
[ 4.545871] usb 1-11: new high-speed USB device number 5 using xhci_hcd
[ 4.706615] usb 1-11: skipped 2 descriptors after configuration
[ 4.706616] usb 1-11: skipped 6 descriptors after interface
[ 4.706618] usb 1-11: skipped 1 descriptor after endpoint
[ 4.706618] usb 1-11: skipped 18 descriptors after interface
[ 4.706926] usb 1-11: default language 0x0409
[ 4.708178] usb 1-11: udev 5, busnum 1, minor = 4
[ 4.708179] usb 1-11: New USB device found, idVendor=0bda, idProduct=568c
[ 4.708180] usb 1-11: New USB device strings: Mfr=3, Product=1, SerialNumber=2
[ 4.708180] usb 1-11: Product: Integrated_Webcam_HD
[ 4.708193] usb 1-11: Manufacturer: CNFGH16F301030004470
[ 4.708194] usb 1-11: SerialNumber: 200901010001
[ 4.708333] usb 1-11: usb_probe_device
[ 4.708334] usb 1-11: configuration #1 chosen from 1 choice
[ 4.709544] usb 1-11: adding 1-11:1.0 (config #1, interface 0)
[ 4.710018] usb 1-11: adding 1-11:1.1 (config #1, interface 1)
[ 4.712100] usbhid 1-9:1.0: usb_probe_interface
[ 4.712101] usbhid 1-9:1.0: usb_probe_interface - got id
[ 4.713554] usbcore: registered new interface driver usbhid
[ 4.713554] usbhid: USB HID core driver
[ 5.809439] Console: switching to colour frame buffer device 240x67
[ 5.828357] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 5.834151] [drm] RC6 on
[ 6.277761] raid6: sse2x1 gen() 11166 MB/s
[ 6.345766] raid6: sse2x1 xor() 7090 MB/s
[ 6.413766] raid6: sse2x2 gen() 13882 MB/s
[ 6.481766] raid6: sse2x2 xor() 9545 MB/s
[ 6.549765] raid6: sse2x4 gen() 15460 MB/s
[ 6.617766] raid6: sse2x4 xor() 10588 MB/s
[ 6.685767] raid6: avx2x1 gen() 27552 MB/s
[ 6.753767] raid6: avx2x2 gen() 31651 MB/s
[ 6.821768] raid6: avx2x4 gen() 32666 MB/s
[ 6.821768] raid6: using algorithm avx2x4 gen() 32666 MB/s
[ 6.821769] raid6: using avx2x2 recovery algorithm
[ 6.822636] xor: automatically using best checksumming function avx
[ 6.831238] Btrfs loaded, crc32c=crc32c-intel
[ 6.881554] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
[ 6.971256] systemd[1]: systemd 229 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN)
[ 6.971364] systemd[1]: Detected architecture x86-64.
[ 6.971535] systemd[1]: Set hostname to <u-Precision>.
[ 7.027945] systemd[1]: Listening on Journal Socket.
[ 7.027973] systemd[1]: Reached target User and Group Name Lookups.
[ 7.027988] systemd[1]: Listening on udev Control Socket.
[ 7.027996] systemd[1]: Listening on fsck to fsckd communication Socket.
[ 7.028001] systemd[1]: Reached target Encrypted Volumes.
[ 7.028005] systemd[1]: Reached target Remote File Systems (Pre).
[ 7.028008] systemd[1]: Reached target Remote File Systems.
[ 7.045443] lp: driver loaded but no devices found
[ 7.048031] ppdev: user-space parallel port driver
[ 7.103273] EXT4-fs (sda3): re-mounted. Opts: errors=remount-ro
[ 7.112405] systemd-journald[361]: Received request to flush runtime journal from PID 1
[ 7.250176] wmi: Mapper loaded
[ 7.250842] random: crng init done
[ 7.268670] Bluetooth: Core ver 2.22
[ 7.268680] NET: Registered protocol family 31
[ 7.268680] Bluetooth: HCI device and connection manager initialized
[ 7.268682] Bluetooth: HCI socket layer initialized
[ 7.268684] Bluetooth: L2CAP socket layer initialized
[ 7.268687] Bluetooth: SCO socket layer initialized
[ 7.276324] Bluetooth: HCI UART driver ver 2.3
[ 7.276325] Bluetooth: HCI UART protocol H4 registered
[ 7.276326] Bluetooth: HCI UART protocol BCSP registered
[ 7.276326] Bluetooth: HCI UART protocol LL registered
[ 7.276326] Bluetooth: HCI UART protocol ATH3K registered
[ 7.276327] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 7.276349] Bluetooth: HCI UART protocol Intel registered
[ 7.276357] Bluetooth: HCI UART protocol Broadcom registered
[ 7.276358] Bluetooth: HCI UART protocol QCA registered
[ 7.276358] Bluetooth: HCI UART protocol AG6XX registered
[ 7.276358] Bluetooth: HCI UART protocol Marvell registered
[ 7.278202] intel-lpss 0000:00:15.0: enabling device (0000 -> 0002)
[ 7.278696] input: Intel HID events as /devices/platform/INT33D5:00/input/input7
[ 7.281894] idma64 idma64.0: Found Intel integrated DMA 64-bit
[ 7.302687] intel-lpss 0000:00:15.1: enabling device (0000 -> 0002)
[ 7.302903] idma64 idma64.1: Found Intel integrated DMA 64-bit
[ 7.303147] proc_thermal 0000:00:04.0: enabling device (0000 -> 0002)
[ 7.331775] Adding 33058812k swap on /dev/sda4. Priority:-1 extents:1 across:33058812k SSFS
[ 7.358381] AVX2 version of gcm_enc/dec engaged.
[ 7.358382] AES CTR mode by8 optimization enabled
[ 7.386986] intel_rapl: Found RAPL domain package
[ 7.386988] intel_rapl: Found RAPL domain core
[ 7.386990] intel_rapl: Found RAPL domain uncore
[ 7.386992] intel_rapl: Found RAPL domain dram
[ 7.405195] mei_me 0000:00:16.0: enabling device (0000 -> 0002)
[ 7.411319] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 7.411457] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[ 7.448017] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
[ 7.454466] audit: type=1400 audit(1478590581.366:2): apparmor="STATUS" operation="profile_load" name="/usr/bin/ubuntu-core-launcher" pid=676 comm="apparmor_parser"
[ 7.455247] audit: type=1400 audit(1478590581.366:3): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=673 comm="apparmor_parser"
[ 7.455250] audit: type=1400 audit(1478590581.366:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=673 comm="apparmor_parser"
[ 7.455252] audit: type=1400 audit(1478590581.366:5): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=673 comm="apparmor_parser"
[ 7.455254] audit: type=1400 audit(1478590581.366:6): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=673 comm="apparmor_parser"
[ 7.455788] audit: type=1400 audit(1478590581.366:7): apparmor="STATUS" operation="profile_load" name="/usr/sbin/cups-browsed" pid=678 comm="apparmor_parser"
[ 7.455959] audit: type=1400 audit(1478590581.366:8): apparmor="STATUS" operation="profile_load" name="/usr/sbin/ippusbxd" pid=682 comm="apparmor_parser"
[ 7.456872] audit: type=1400 audit(1478590581.366:9): apparmor="STATUS" operation="profile_load" name="/usr/sbin/tcpdump" pid=689 comm="apparmor_parser"
[ 7.458543] audit: type=1400 audit(1478590581.370:10): apparmor="STATUS" operation="profile_load" name="/usr/lib/cups/backend/cups-pdf" pid=679 comm="apparmor_parser"
[ 7.458547] audit: type=1400 audit(1478590581.370:11): apparmor="STATUS" operation="profile_load" name="/usr/sbin/cupsd" pid=679 comm="apparmor_parser"
[ 7.458635] int3403 thermal: probe of INT3403:03 failed with error -22
[ 7.459657] Intel(R) Wireless WiFi driver for Linux
[ 7.459658] Copyright(c) 2003- 2015 Intel Corporation
[ 7.459994] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002)
[ 7.462592] iwlwifi 0000:02:00.0: Unsupported splx structure
[ 7.463883] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8265-26.ucode failed with error -2
[ 7.463895] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8265-25.ucode failed with error -2
[ 7.463903] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8265-24.ucode failed with error -2
[ 7.464072] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8265-23.ucode failed with error -2
[ 7.464656] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8265-22.ucode failed with error -2
[ 7.465058] dell_wmi: Detected Dell WMI interface version 1
[ 7.465135] input: Dell WMI hotkeys as /devices/virtual/input/input8
[ 7.479490] iwlwifi 0000:02:00.0: loaded firmware version 21.302800.0 op_mode iwlmvm
[ 7.501942] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 8265, REV=0x230
[ 7.502315] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC3246: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[ 7.502316] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 7.502317] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
[ 7.502317] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0
[ 7.502318] snd_hda_codec_realtek hdaudioC0D0: inputs:
[ 7.502319] snd_hda_codec_realtek hdaudioC0D0: Headset Mic=0x19
[ 7.502320] snd_hda_codec_realtek hdaudioC0D0: Headphone Mic=0x1a
[ 7.502320] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x12
[ 7.504333] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled
[ 7.505185] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled
[ 7.527895] input: HDA Intel PCH Headphone Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input9
[ 7.527930] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input10
[ 7.527960] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input11
[ 7.527990] input: HDA Intel PCH HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input12
[ 7.531112] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 7.531113] Bluetooth: BNEP filters: protocol multicast
[ 7.531115] Bluetooth: BNEP socket layer initialized
[ 7.615191] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready
[ 7.736088] Non-volatile memory driver v1.3
[ 7.830013] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready
[ 7.851365] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 7.851676] thermal thermal_zone7: failed to read out thermal zone (-5)
[ 7.852316] iwlwifi 0000:02:00.0 wlp2s0: renamed from wlan0
[ 7.887816] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 7.890060] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled
[ 7.890986] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled
[ 8.010368] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled
[ 8.010709] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled
[ 8.074130] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 8.160488] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 8.283276] input: DualPoint Stick as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-7/i2c-DLL07A9:01/0018:044E:120B.0002/input/input14
[ 8.283579] input: DLL07A9:01 044E:120B as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-7/i2c-DLL07A9:01/0018:044E:120B.0002/input/input13
[ 8.283917] hid-alps 0018:044E:120B.0002: input,hidraw0: I2C HID v1.00 Mouse [DLL07A9:01 044E:120B] on i2c-DLL07A9:01
[ 8.295180] usb 2-2: Disable of device-initiated U1 failed.
[ 8.295322] usb 2-2: Disable of device-initiated U2 failed.
[ 8.295813] input: Raydium Corporation Raydium Touch System as /devices/pci0000:00/0000:00:14.0/usb1/1-9/1-9:1.0/0003:2386:3114.0001/input/input15
[ 8.295920] usbhid 1-9:1.0: looking for a minor, starting at 0
[ 8.295959] hid-multitouch 0003:2386:3114.0001: input,hiddev0,hidraw1: USB HID v1.10 Device [Raydium Corporation Raydium Touch System] on usb-0000:00:14.0-9/input0
[ 8.296701] media: Linux media interface: v0.10
[ 8.301104] Linux video capture interface: v2.00
[ 8.301287] usbcore: registered new interface driver cdc_ncm
[ 8.303243] usbcore: registered new interface driver cdc_wdm
[ 8.309764] usb 1-11: usb auto-suspend, wakeup 0
[ 8.309765] usb 1-6: usb auto-suspend, wakeup 0
[ 8.321811] usb 2-2: usb auto-suspend, wakeup 0
[ 8.330004] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0040
[ 8.341857] hub 2-0:1.0: hub_suspend
[ 8.341860] usb usb2: bus auto-suspend, wakeup 1
[ 8.341888] usb usb2: usb auto-resume
[ 8.357892] hub 2-0:1.0: hub_resume
[ 8.357898] usb usb2-port2: status 0263 change 0000
[ 8.357915] hub 2-0:1.0: state 7 ports 10 chg 0000 evt 0000
[ 8.359412] hub 2-0:1.0: state 7 ports 10 chg 0000 evt 0004
[ 8.377849] usb 1-6: usb auto-resume
[ 8.377909] usb 1-11: usb auto-resume
[ 8.385847] usb 2-2: usb auto-resume
[ 8.445813] usb 1-6: Waited 0ms for CONNECT
[ 8.445814] usb 1-6: finish resume
[ 8.446051] btusb 1-6:1.0: usb_probe_interface
[ 8.446052] btusb 1-6:1.0: usb_probe_interface - got id
[ 8.446450] usbcore: registered new interface driver btusb
[ 8.447692] Bluetooth: hci0: Firmware revision 0.1 build 60 week 18 2016
[ 8.449982] usb 1-11: Waited 0ms for CONNECT
[ 8.449983] usb 1-11: finish resume
[ 8.450124] uvcvideo 1-11:1.0: usb_probe_interface
[ 8.450125] uvcvideo 1-11:1.0: usb_probe_interface - got id
[ 8.450154] uvcvideo: Found UVC 1.00 device Integrated_Webcam_HD (0bda:568c)
[ 8.450168] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0000
[ 8.451424] uvcvideo 1-11:1.0: Entity type for entity Extension 4 was not initialized!
[ 8.451425] uvcvideo 1-11:1.0: Entity type for entity Extension 7 was not initialized!
[ 8.451426] uvcvideo 1-11:1.0: Entity type for entity Processing 2 was not initialized!
[ 8.451426] uvcvideo 1-11:1.0: Entity type for entity Camera 1 was not initialized!
[ 8.451617] input: Integrated_Webcam_HD as /devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.0/input/input17
[ 8.451701] usbcore: registered new interface driver uvcvideo
[ 8.451702] USB Video Class driver (1.1.1)
[ 9.853861] usb 1-10: usb auto-suspend, wakeup 0
[ 11.005803] usb 1-11: usb auto-suspend, wakeup 0
[ 11.007440] usb 1-6: usb auto-suspend, wakeup 1
[ 11.282010] usb 2-2: Waited 2000ms for CONNECT
[ 11.283248] usb usb2-port2: status 0001.02c0 after resume, -19
[ 11.283249] usb 2-2: can't resume, status -19
[ 11.283249] usb usb2-port2: logical disconnect
[ 11.283534] usb usb2-port2: status 0280, change 0000, 5.0 Gb/s
[ 11.283535] cdc_mbim 2-2:1.12: usb_probe_interface
[ 11.283536] cdc_mbim 2-2:1.12: usb_probe_interface - got id
[ 11.283536] usb 2-2: USB disconnect, device number 2
[ 11.283539] cdc_mbim: probe of 2-2:1.12 failed with error -22
[ 11.283540] usb 2-2: unregistering device
[ 11.283541] usb 2-2: unregistering interface 2-2:1.12
[ 11.283586] usbcore: registered new interface driver cdc_mbim
[ 11.283614] usb 2-2: unregistering interface 2-2:1.13
[ 11.283654] usb 2-2: usb_disable_device nuking all URBs
[ 11.284139] hub 2-0:1.0: state 7 ports 10 chg 0000 evt 0000
[ 11.284297] hub 2-0:1.0: hub_suspend
[ 11.284314] usb usb2: bus auto-suspend, wakeup 1
[ 12.136720] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0000
[ 12.141647] Bluetooth: RFCOMM TTY layer initialized
[ 12.141651] Bluetooth: RFCOMM socket layer initialized
[ 12.141655] Bluetooth: RFCOMM ver 1.11
[ 12.181812] usb 1-6: usb auto-resume
[ 12.181826] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0040
[ 12.253834] usb 1-6: Waited 0ms for CONNECT
[ 12.253835] usb 1-6: finish resume
[ 15.101880] usb 1-6: usb auto-suspend, wakeup 1
[ 26.675716] wlp2s0: authenticate with 2c:36:f8:fa:ec:00
[ 26.685522] wlp2s0: send auth to 2c:36:f8:fa:ec:00 (try 1/3)
[ 26.690233] wlp2s0: authenticated
[ 26.694008] wlp2s0: associate with 2c:36:f8:fa:ec:00 (try 1/3)
[ 26.695362] wlp2s0: RX AssocResp from 2c:36:f8:fa:ec:00 (capab=0x111 status=0 aid=7)
[ 26.707804] wlp2s0: associated
[ 26.707841] wlp2s0: Limiting TX power to 27 (30 - 3) dBm as advertised by 2c:36:f8:fa:ec:00
[ 26.707856] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
[ 28.305314] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0000
[ 28.350035] usb 1-6: usb auto-resume
[ 28.350048] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0040
[ 28.418115] usb 1-6: Waited 0ms for CONNECT
[ 28.418116] usb 1-6: finish resume
[ 28.418717] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0000
[ 28.438124] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0000
[ 28.466137] usb 1-11: usb auto-resume
[ 28.466213] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0800
[ 28.538022] usb 1-11: Waited 0ms for CONNECT
[ 28.538024] usb 1-11: finish resume
[ 28.539308] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0000
[ 28.586150] usb 1-10: usb auto-resume
[ 28.586186] hub 1-0:1.0: state 7 ports 16 chg 0000 evt 0400
[ 28.654022] usb 1-10: Waited 0ms for CONNECT
[ 28.654023] usb 1-10: finish resume
[ 30.974074] usb 1-11: usb auto-suspend, wakeup 0
[ 30.974104] usb 1-10: usb auto-suspend, wakeup 0
^ permalink raw reply
* [PATCH v3] xen-netback: prefer xenbus_scanf() over xenbus_gather()
From: Jan Beulich @ 2016-11-08 7:45 UTC (permalink / raw)
To: Paul Durrant, Wei Liu; +Cc: xen-devel, netdev
For single items being collected this should be preferred as being more
typesafe (as the compiler can check format string and to-be-written-to
variable match) and more efficient (requiring one less parameter to be
passed).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
---
v3: For consistency with other code don't consider zero an error
(utilizing that xenbus_scanf() at present won't return zero).
v2: Avoid commit message to continue from subject.
---
drivers/net/xen-netback/xenbus.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- 4.9-rc4/drivers/net/xen-netback/xenbus.c
+++ 4.9-rc4-xen-netback-prefer-xenbus_scanf/drivers/net/xen-netback/xenbus.c
@@ -889,16 +889,16 @@ static int connect_ctrl_ring(struct back
unsigned int evtchn;
int err;
- err = xenbus_gather(XBT_NIL, dev->otherend,
- "ctrl-ring-ref", "%u", &val, NULL);
- if (err)
+ err = xenbus_scanf(XBT_NIL, dev->otherend,
+ "ctrl-ring-ref", "%u", &val);
+ if (err < 0)
goto done; /* The frontend does not have a control ring */
ring_ref = val;
- err = xenbus_gather(XBT_NIL, dev->otherend,
- "event-channel-ctrl", "%u", &val, NULL);
- if (err) {
+ err = xenbus_scanf(XBT_NIL, dev->otherend,
+ "event-channel-ctrl", "%u", &val);
+ if (err < 0) {
xenbus_dev_fatal(dev, err,
"reading %s/event-channel-ctrl",
dev->otherend);
^ permalink raw reply
* [PATCH] igb: use igb_adapter->io_addr instead of e1000_hw->hw_addr
From: Cao jin @ 2016-11-08 7:06 UTC (permalink / raw)
To: linux-kernel, netdev
Cc: intel-wired-lan, alexander.duyck, izumi.taku, jeffrey.t.kirsher
When running as guest, under certain condition, it will oops as following.
writel() in igb_configure_tx_ring() results in oops, because hw->hw_addr
is NULL. While other register access won't oops kernel because they use
wr32/rd32 which have a defense against NULL pointer.
[ 141.225449] pcieport 0000:00:1c.0: AER: Multiple Uncorrected (Fatal)
error received: id=0101
[ 141.225523] igb 0000:01:00.1: PCIe Bus Error:
severity=Uncorrected (Fatal), type=Unaccessible,
id=0101(Unregistered Agent ID)
[ 141.299442] igb 0000:01:00.1: broadcast error_detected message
[ 141.300539] igb 0000:01:00.0 enp1s0f0: PCIe link lost, device now
detached
[ 141.351019] igb 0000:01:00.1 enp1s0f1: PCIe link lost, device now
detached
[ 143.465904] pcieport 0000:00:1c.0: Root Port link has been reset
[ 143.465994] igb 0000:01:00.1: broadcast slot_reset message
[ 143.466039] igb 0000:01:00.0: enabling device (0000 -> 0002)
[ 144.389078] igb 0000:01:00.1: enabling device (0000 -> 0002)
[ 145.312078] igb 0000:01:00.1: broadcast resume message
[ 145.322211] BUG: unable to handle kernel paging request at
0000000000003818
[ 145.361275] IP: [<ffffffffa02fd38d>]
igb_configure_tx_ring+0x14d/0x280 [igb]
[ 145.400048] PGD 0
[ 145.438007] Oops: 0002 [#1] SMP
A similiar issue & solution could be found at:
http://patchwork.ozlabs.org/patch/689592/
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
---
drivers/net/ethernet/intel/igb/igb_main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index edc9a6a..3f240ac 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -3390,7 +3390,7 @@ void igb_configure_tx_ring(struct igb_adapter *adapter,
tdba & 0x00000000ffffffffULL);
wr32(E1000_TDBAH(reg_idx), tdba >> 32);
- ring->tail = hw->hw_addr + E1000_TDT(reg_idx);
+ ring->tail = adapter->io_addr + E1000_TDT(reg_idx);
wr32(E1000_TDH(reg_idx), 0);
writel(0, ring->tail);
@@ -3729,7 +3729,7 @@ void igb_configure_rx_ring(struct igb_adapter *adapter,
ring->count * sizeof(union e1000_adv_rx_desc));
/* initialize head and tail */
- ring->tail = hw->hw_addr + E1000_RDT(reg_idx);
+ ring->tail = adapter->io_addr + E1000_RDT(reg_idx);
wr32(E1000_RDH(reg_idx), 0);
writel(0, ring->tail);
--
2.1.0
^ permalink raw reply related
* [PATCH v2 6/6] qedi: Add support for data path.
From: Manish Rangankar @ 2016-11-08 6:57 UTC (permalink / raw)
To: martin.petersen, lduncan, cleech
Cc: linux-scsi, netdev, QLogic-Storage-Upstream, Yuval.Mintz
In-Reply-To: <1478588223-16183-1-git-send-email-manish.rangankar@cavium.com>
This patch adds support for data path and TMF handling.
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
---
drivers/scsi/qedi/qedi_fw.c | 1272 ++++++++++++++++++++++++++++++++++++++++
drivers/scsi/qedi/qedi_gbl.h | 6 +
drivers/scsi/qedi/qedi_iscsi.c | 13 +
drivers/scsi/qedi/qedi_main.c | 4 +
4 files changed, 1295 insertions(+)
diff --git a/drivers/scsi/qedi/qedi_fw.c b/drivers/scsi/qedi/qedi_fw.c
index 5ee62a2..560c3e6 100644
--- a/drivers/scsi/qedi/qedi_fw.c
+++ b/drivers/scsi/qedi/qedi_fw.c
@@ -146,6 +146,114 @@ static void qedi_process_text_resp(struct qedi_ctx *qedi,
spin_unlock(&session->back_lock);
}
+static void qedi_tmf_resp_work(struct work_struct *work)
+{
+ struct qedi_cmd *qedi_cmd =
+ container_of(work, struct qedi_cmd, tmf_work);
+ struct qedi_conn *qedi_conn = qedi_cmd->conn;
+ struct qedi_ctx *qedi = qedi_conn->qedi;
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+ struct iscsi_tm_rsp *resp_hdr_ptr;
+ struct iscsi_cls_session *cls_sess;
+ int rval = 0;
+
+ set_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags);
+ resp_hdr_ptr = (struct iscsi_tm_rsp *)qedi_cmd->tmf_resp_buf;
+ cls_sess = iscsi_conn_to_session(qedi_conn->cls_conn);
+
+ iscsi_block_session(session->cls_session);
+ rval = qedi_cleanup_all_io(qedi, qedi_conn, qedi_cmd->task, true);
+ if (rval) {
+ clear_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags);
+ qedi_clear_task_idx(qedi, qedi_cmd->task_id);
+ iscsi_unblock_session(session->cls_session);
+ return;
+ }
+
+ iscsi_unblock_session(session->cls_session);
+ qedi_clear_task_idx(qedi, qedi_cmd->task_id);
+
+ spin_lock(&session->back_lock);
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr_ptr, NULL, 0);
+ spin_unlock(&session->back_lock);
+ kfree(resp_hdr_ptr);
+ clear_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags);
+}
+
+static void qedi_process_tmf_resp(struct qedi_ctx *qedi,
+ union iscsi_cqe *cqe,
+ struct iscsi_task *task,
+ struct qedi_conn *qedi_conn)
+
+{
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+ struct iscsi_tmf_response_hdr *cqe_tmp_response;
+ struct iscsi_tm_rsp *resp_hdr_ptr;
+ struct iscsi_tm *tmf_hdr;
+ struct qedi_cmd *qedi_cmd = NULL;
+ u32 *tmp;
+
+ cqe_tmp_response = &cqe->cqe_common.iscsi_hdr.tmf_response;
+
+ qedi_cmd = task->dd_data;
+ qedi_cmd->tmf_resp_buf = kzalloc(sizeof(*resp_hdr_ptr), GFP_KERNEL);
+ if (!qedi_cmd->tmf_resp_buf) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "Failed to allocate resp buf, cid=0x%x\n",
+ qedi_conn->iscsi_conn_id);
+ return;
+ }
+
+ spin_lock(&session->back_lock);
+ resp_hdr_ptr = (struct iscsi_tm_rsp *)qedi_cmd->tmf_resp_buf;
+ memset(resp_hdr_ptr, 0, sizeof(struct iscsi_tm_rsp));
+
+ /* Fill up the header */
+ resp_hdr_ptr->opcode = cqe_tmp_response->opcode;
+ resp_hdr_ptr->flags = cqe_tmp_response->hdr_flags;
+ resp_hdr_ptr->response = cqe_tmp_response->hdr_response;
+ resp_hdr_ptr->hlength = 0;
+
+ hton24(resp_hdr_ptr->dlength,
+ (cqe_tmp_response->hdr_second_dword &
+ ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_MASK));
+ tmp = (u32 *)resp_hdr_ptr->dlength;
+ resp_hdr_ptr->itt = build_itt(cqe->cqe_solicited.itid,
+ conn->session->age);
+ resp_hdr_ptr->statsn = cpu_to_be32(cqe_tmp_response->stat_sn);
+ resp_hdr_ptr->exp_cmdsn = cpu_to_be32(cqe_tmp_response->exp_cmd_sn);
+ resp_hdr_ptr->max_cmdsn = cpu_to_be32(cqe_tmp_response->max_cmd_sn);
+
+ tmf_hdr = (struct iscsi_tm *)qedi_cmd->task->hdr;
+
+ if (likely(qedi_cmd->io_cmd_in_list)) {
+ qedi_cmd->io_cmd_in_list = false;
+ list_del_init(&qedi_cmd->io_cmd);
+ qedi_conn->active_cmd_count--;
+ }
+
+ if (((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) ==
+ ISCSI_TM_FUNC_LOGICAL_UNIT_RESET) ||
+ ((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) ==
+ ISCSI_TM_FUNC_TARGET_WARM_RESET) ||
+ ((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) ==
+ ISCSI_TM_FUNC_TARGET_COLD_RESET)) {
+ INIT_WORK(&qedi_cmd->tmf_work, qedi_tmf_resp_work);
+ queue_work(qedi->tmf_thread, &qedi_cmd->tmf_work);
+ goto unblock_sess;
+ }
+
+ qedi_clear_task_idx(qedi, qedi_cmd->task_id);
+
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr_ptr, NULL, 0);
+ kfree(resp_hdr_ptr);
+
+unblock_sess:
+ spin_unlock(&session->back_lock);
+}
+
static void qedi_process_login_resp(struct qedi_ctx *qedi,
union iscsi_cqe *cqe,
struct iscsi_task *task,
@@ -466,6 +574,121 @@ static void qedi_process_reject_mesg(struct qedi_ctx *qedi,
spin_unlock_bh(&session->back_lock);
}
+static void qedi_scsi_completion(struct qedi_ctx *qedi,
+ union iscsi_cqe *cqe,
+ struct iscsi_task *task,
+ struct iscsi_conn *conn)
+{
+ struct scsi_cmnd *sc_cmd;
+ struct qedi_cmd *cmd = task->dd_data;
+ struct iscsi_session *session = conn->session;
+ struct iscsi_scsi_rsp *hdr;
+ struct iscsi_data_in_hdr *cqe_data_in;
+ int datalen = 0;
+ struct qedi_conn *qedi_conn;
+ u32 iscsi_cid;
+ bool mark_cmd_node_deleted = false;
+ u8 cqe_err_bits = 0;
+
+ iscsi_cid = cqe->cqe_common.conn_id;
+ qedi_conn = qedi->cid_que.conn_cid_tbl[iscsi_cid];
+
+ cqe_data_in = &cqe->cqe_common.iscsi_hdr.data_in;
+ cqe_err_bits =
+ cqe->cqe_common.error_bitmap.error_bits.cqe_error_status_bits;
+
+ spin_lock_bh(&session->back_lock);
+ /* get the scsi command */
+ sc_cmd = cmd->scsi_cmd;
+
+ if (!sc_cmd) {
+ QEDI_WARN(&qedi->dbg_ctx, "sc_cmd is NULL!\n");
+ goto error;
+ }
+
+ if (!sc_cmd->SCp.ptr) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "SCp.ptr is NULL, returned in another context.\n");
+ goto error;
+ }
+
+ if (!sc_cmd->request) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "sc_cmd->request is NULL, sc_cmd=%p.\n",
+ sc_cmd);
+ goto error;
+ }
+
+ if (!sc_cmd->request->special) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "request->special is NULL so request not valid, sc_cmd=%p.\n",
+ sc_cmd);
+ goto error;
+ }
+
+ if (!sc_cmd->request->q) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "request->q is NULL so request is not valid, sc_cmd=%p.\n",
+ sc_cmd);
+ goto error;
+ }
+
+ qedi_iscsi_unmap_sg_list(cmd);
+
+ hdr = (struct iscsi_scsi_rsp *)task->hdr;
+ hdr->opcode = cqe_data_in->opcode;
+ hdr->max_cmdsn = cpu_to_be32(cqe_data_in->max_cmd_sn);
+ hdr->exp_cmdsn = cpu_to_be32(cqe_data_in->exp_cmd_sn);
+ hdr->itt = build_itt(cqe->cqe_solicited.itid, conn->session->age);
+ hdr->response = cqe_data_in->reserved1;
+ hdr->cmd_status = cqe_data_in->status_rsvd;
+ hdr->flags = cqe_data_in->flags;
+ hdr->residual_count = cpu_to_be32(cqe_data_in->residual_count);
+
+ if (hdr->cmd_status == SAM_STAT_CHECK_CONDITION) {
+ datalen = cqe_data_in->reserved2 &
+ ISCSI_COMMON_HDR_DATA_SEG_LEN_MASK;
+ memcpy((char *)conn->data, (char *)cmd->sense_buffer, datalen);
+ }
+
+ /* If f/w reports data underrun err then set residual to IO transfer
+ * length, set Underrun flag and clear Overrun flag explicitly
+ */
+ if (unlikely(cqe_err_bits &&
+ GET_FIELD(cqe_err_bits, CQE_ERROR_BITMAP_UNDER_RUN_ERR))) {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "Under flow itt=0x%x proto flags=0x%x tid=0x%x cid 0x%x fw resid 0x%x sc dlen 0x%x\n",
+ hdr->itt, cqe_data_in->flags, cmd->task_id,
+ qedi_conn->iscsi_conn_id, hdr->residual_count,
+ scsi_bufflen(sc_cmd));
+ hdr->residual_count = cpu_to_be32(scsi_bufflen(sc_cmd));
+ hdr->flags |= ISCSI_FLAG_CMD_UNDERFLOW;
+ hdr->flags &= (~ISCSI_FLAG_CMD_OVERFLOW);
+ }
+
+ spin_lock(&qedi_conn->list_lock);
+ if (likely(cmd->io_cmd_in_list)) {
+ cmd->io_cmd_in_list = false;
+ list_del_init(&cmd->io_cmd);
+ qedi_conn->active_cmd_count--;
+ mark_cmd_node_deleted = true;
+ }
+ spin_unlock(&qedi_conn->list_lock);
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_TID,
+ "Freeing tid=0x%x for cid=0x%x\n",
+ cmd->task_id, qedi_conn->iscsi_conn_id);
+ cmd->state = RESPONSE_RECEIVED;
+ if (io_tracing)
+ qedi_trace_io(qedi, task, cmd->task_id, QEDI_IO_TRACE_RSP);
+
+ qedi_clear_task_idx(qedi, cmd->task_id);
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr,
+ conn->data, datalen);
+error:
+ spin_unlock_bh(&session->back_lock);
+}
+
static void qedi_mtask_completion(struct qedi_ctx *qedi,
union iscsi_cqe *cqe,
struct iscsi_task *task,
@@ -478,9 +701,16 @@ static void qedi_mtask_completion(struct qedi_ctx *qedi,
iscsi_conn = conn->cls_conn->dd_data;
switch (hdr_opcode) {
+ case ISCSI_OPCODE_SCSI_RESPONSE:
+ case ISCSI_OPCODE_DATA_IN:
+ qedi_scsi_completion(qedi, cqe, task, iscsi_conn);
+ break;
case ISCSI_OPCODE_LOGIN_RESPONSE:
qedi_process_login_resp(qedi, cqe, task, conn);
break;
+ case ISCSI_OPCODE_TMF_RESPONSE:
+ qedi_process_tmf_resp(qedi, cqe, task, conn);
+ break;
case ISCSI_OPCODE_TEXT_RESPONSE:
qedi_process_text_resp(qedi, cqe, task, conn);
break;
@@ -516,6 +746,131 @@ static void qedi_process_nopin_local_cmpl(struct qedi_ctx *qedi,
spin_unlock_bh(&session->back_lock);
}
+static void qedi_process_cmd_cleanup_resp(struct qedi_ctx *qedi,
+ struct iscsi_cqe_solicited *cqe,
+ struct iscsi_task *task,
+ struct iscsi_conn *conn)
+{
+ struct qedi_work_map *work, *work_tmp;
+ u32 proto_itt = cqe->itid;
+ u32 ptmp_itt = 0;
+ itt_t protoitt = 0;
+ int found = 0;
+ struct qedi_cmd *qedi_cmd = NULL;
+ u32 rtid = 0;
+ u32 iscsi_cid;
+ struct qedi_conn *qedi_conn;
+ struct qedi_cmd *cmd_new, *dbg_cmd;
+ struct iscsi_task *mtask;
+ struct iscsi_tm *tmf_hdr = NULL;
+
+ iscsi_cid = cqe->conn_id;
+ qedi_conn = qedi->cid_que.conn_cid_tbl[iscsi_cid];
+
+ /* Based on this itt get the corresponding qedi_cmd */
+ spin_lock_bh(&qedi_conn->tmf_work_lock);
+ list_for_each_entry_safe(work, work_tmp, &qedi_conn->tmf_work_list,
+ list) {
+ if (work->rtid == proto_itt) {
+ /* We found the command */
+ qedi_cmd = work->qedi_cmd;
+ if (!qedi_cmd->list_tmf_work) {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "TMF work not found, cqe->tid=0x%x, cid=0x%x\n",
+ proto_itt, qedi_conn->iscsi_conn_id);
+ WARN_ON(1);
+ }
+ found = 1;
+ mtask = qedi_cmd->task;
+ tmf_hdr = (struct iscsi_tm *)mtask->hdr;
+ rtid = work->rtid;
+
+ list_del_init(&work->list);
+ kfree(work);
+ qedi_cmd->list_tmf_work = NULL;
+ }
+ }
+ spin_unlock_bh(&qedi_conn->tmf_work_lock);
+
+ if (found) {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "TMF work, cqe->tid=0x%x, tmf flags=0x%x, cid=0x%x\n",
+ proto_itt, tmf_hdr->flags, qedi_conn->iscsi_conn_id);
+
+ if ((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) ==
+ ISCSI_TM_FUNC_ABORT_TASK) {
+ spin_lock_bh(&conn->session->back_lock);
+
+ protoitt = build_itt(get_itt(tmf_hdr->rtt),
+ conn->session->age);
+ task = iscsi_itt_to_task(conn, protoitt);
+
+ spin_unlock_bh(&conn->session->back_lock);
+
+ if (!task) {
+ QEDI_NOTICE(&qedi->dbg_ctx,
+ "IO task completed, tmf rtt=0x%x, cid=0x%x\n",
+ get_itt(tmf_hdr->rtt),
+ qedi_conn->iscsi_conn_id);
+ return;
+ }
+
+ dbg_cmd = task->dd_data;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "Abort tmf rtt=0x%x, i/o itt=0x%x, i/o tid=0x%x, cid=0x%x\n",
+ get_itt(tmf_hdr->rtt), get_itt(task->itt),
+ dbg_cmd->task_id, qedi_conn->iscsi_conn_id);
+
+ if (qedi_cmd->state == CLEANUP_WAIT_FAILED)
+ qedi_cmd->state = CLEANUP_RECV;
+
+ qedi_clear_task_idx(qedi_conn->qedi, rtid);
+
+ spin_lock(&qedi_conn->list_lock);
+ list_del_init(&dbg_cmd->io_cmd);
+ qedi_conn->active_cmd_count--;
+ spin_unlock(&qedi_conn->list_lock);
+ qedi_cmd->state = CLEANUP_RECV;
+ wake_up_interruptible(&qedi_conn->wait_queue);
+ }
+ } else if (qedi_conn->cmd_cleanup_req > 0) {
+ spin_lock_bh(&conn->session->back_lock);
+ qedi_get_proto_itt(qedi, cqe->itid, &ptmp_itt);
+ protoitt = build_itt(ptmp_itt, conn->session->age);
+ task = iscsi_itt_to_task(conn, protoitt);
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "cleanup io itid=0x%x, protoitt=0x%x, cmd_cleanup_cmpl=%d, cid=0x%x\n",
+ cqe->itid, protoitt, qedi_conn->cmd_cleanup_cmpl,
+ qedi_conn->iscsi_conn_id);
+
+ spin_unlock_bh(&conn->session->back_lock);
+ if (!task) {
+ QEDI_NOTICE(&qedi->dbg_ctx,
+ "task is null, itid=0x%x, cid=0x%x\n",
+ cqe->itid, qedi_conn->iscsi_conn_id);
+ return;
+ }
+ qedi_conn->cmd_cleanup_cmpl++;
+ wake_up(&qedi_conn->wait_queue);
+ cmd_new = task->dd_data;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_TID,
+ "Freeing tid=0x%x for cid=0x%x\n",
+ cqe->itid, qedi_conn->iscsi_conn_id);
+ qedi_clear_task_idx(qedi_conn->qedi, cqe->itid);
+
+ } else {
+ qedi_get_proto_itt(qedi, cqe->itid, &ptmp_itt);
+ protoitt = build_itt(ptmp_itt, conn->session->age);
+ task = iscsi_itt_to_task(conn, protoitt);
+ QEDI_ERR(&qedi->dbg_ctx,
+ "Delayed or untracked cleanup response, itt=0x%x, tid=0x%x, cid=0x%x, task=%p\n",
+ protoitt, cqe->itid, qedi_conn->iscsi_conn_id, task);
+ WARN_ON(1);
+ }
+}
+
void qedi_fp_process_cqes(struct qedi_work *work)
{
struct qedi_ctx *qedi = work->qedi;
@@ -602,6 +957,14 @@ void qedi_fp_process_cqes(struct qedi_work *work)
break;
}
goto exit_fp_process;
+ case ISCSI_CQE_TYPE_DUMMY:
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM, "Dummy CqE\n");
+ goto exit_fp_process;
+ case ISCSI_CQE_TYPE_TASK_CLEANUP:
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM, "CleanUp CqE\n");
+ qedi_process_cmd_cleanup_resp(qedi, &cqe->cqe_solicited, task,
+ conn);
+ goto exit_fp_process;
default:
QEDI_ERR(&qedi->dbg_ctx, "Error cqe.\n");
break;
@@ -889,6 +1252,439 @@ int qedi_send_iscsi_logout(struct qedi_conn *qedi_conn,
return 0;
}
+int qedi_cleanup_all_io(struct qedi_ctx *qedi, struct qedi_conn *qedi_conn,
+ struct iscsi_task *task, bool in_recovery)
+{
+ int rval;
+ struct iscsi_task *ctask;
+ struct qedi_cmd *cmd, *cmd_tmp;
+ struct iscsi_tm *tmf_hdr;
+ unsigned int lun = 0;
+ bool lun_reset = false;
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+
+ /* From recovery, task is NULL or from tmf resp valid task */
+ if (task) {
+ tmf_hdr = (struct iscsi_tm *)task->hdr;
+
+ if ((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) ==
+ ISCSI_TM_FUNC_LOGICAL_UNIT_RESET) {
+ lun_reset = true;
+ lun = scsilun_to_int(&tmf_hdr->lun);
+ }
+ }
+
+ qedi_conn->cmd_cleanup_req = 0;
+ qedi_conn->cmd_cleanup_cmpl = 0;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "active_cmd_count=%d, cid=0x%x, in_recovery=%d, lun_reset=%d\n",
+ qedi_conn->active_cmd_count, qedi_conn->iscsi_conn_id,
+ in_recovery, lun_reset);
+
+ if (lun_reset)
+ spin_lock_bh(&session->back_lock);
+
+ spin_lock(&qedi_conn->list_lock);
+
+ list_for_each_entry_safe(cmd, cmd_tmp, &qedi_conn->active_cmd_list,
+ io_cmd) {
+ ctask = cmd->task;
+ if (ctask == task)
+ continue;
+
+ if (lun_reset) {
+ if (cmd->scsi_cmd && cmd->scsi_cmd->device) {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "tid=0x%x itt=0x%x scsi_cmd_ptr=%p device=%p task_state=%d cmd_state=0%x cid=0x%x\n",
+ cmd->task_id, get_itt(ctask->itt),
+ cmd->scsi_cmd, cmd->scsi_cmd->device,
+ ctask->state, cmd->state,
+ qedi_conn->iscsi_conn_id);
+ if (cmd->scsi_cmd->device->lun != lun)
+ continue;
+ }
+ }
+ qedi_conn->cmd_cleanup_req++;
+ qedi_iscsi_cleanup_task(ctask, true);
+
+ list_del_init(&cmd->io_cmd);
+ qedi_conn->active_cmd_count--;
+ QEDI_WARN(&qedi->dbg_ctx,
+ "Deleted active cmd list node io_cmd=%p, cid=0x%x\n",
+ &cmd->io_cmd, qedi_conn->iscsi_conn_id);
+ }
+
+ spin_unlock(&qedi_conn->list_lock);
+
+ if (lun_reset)
+ spin_unlock_bh(&session->back_lock);
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "cmd_cleanup_req=%d, cid=0x%x\n",
+ qedi_conn->cmd_cleanup_req,
+ qedi_conn->iscsi_conn_id);
+
+ rval = wait_event_interruptible_timeout(qedi_conn->wait_queue,
+ ((qedi_conn->cmd_cleanup_req ==
+ qedi_conn->cmd_cleanup_cmpl) ||
+ qedi_conn->ep),
+ 5 * HZ);
+ if (rval) {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "i/o cmd_cleanup_req=%d, equal to cmd_cleanup_cmpl=%d, cid=0x%x\n",
+ qedi_conn->cmd_cleanup_req,
+ qedi_conn->cmd_cleanup_cmpl,
+ qedi_conn->iscsi_conn_id);
+
+ return 0;
+ }
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "i/o cmd_cleanup_req=%d, not equal to cmd_cleanup_cmpl=%d, cid=0x%x\n",
+ qedi_conn->cmd_cleanup_req,
+ qedi_conn->cmd_cleanup_cmpl,
+ qedi_conn->iscsi_conn_id);
+
+ iscsi_host_for_each_session(qedi->shost,
+ qedi_mark_device_missing);
+ qedi_ops->common->drain(qedi->cdev);
+
+ /* Enable IOs for all other sessions except current.*/
+ if (!wait_event_interruptible_timeout(qedi_conn->wait_queue,
+ (qedi_conn->cmd_cleanup_req ==
+ qedi_conn->cmd_cleanup_cmpl),
+ 5 * HZ)) {
+ iscsi_host_for_each_session(qedi->shost,
+ qedi_mark_device_available);
+ return -1;
+ }
+
+ iscsi_host_for_each_session(qedi->shost,
+ qedi_mark_device_available);
+
+ return 0;
+}
+
+void qedi_clearsq(struct qedi_ctx *qedi, struct qedi_conn *qedi_conn,
+ struct iscsi_task *task)
+{
+ struct qedi_endpoint *qedi_ep;
+ int rval;
+
+ qedi_ep = qedi_conn->ep;
+ qedi_conn->cmd_cleanup_req = 0;
+ qedi_conn->cmd_cleanup_cmpl = 0;
+
+ if (!qedi_ep) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "Cannot proceed, ep already disconnected, cid=0x%x\n",
+ qedi_conn->iscsi_conn_id);
+ return;
+ }
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "Clearing SQ for cid=0x%x, conn=%p, ep=%p\n",
+ qedi_conn->iscsi_conn_id, qedi_conn, qedi_ep);
+
+ qedi_ops->clear_sq(qedi->cdev, qedi_ep->handle);
+
+ rval = qedi_cleanup_all_io(qedi, qedi_conn, task, true);
+ if (rval) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "fatal error, need hard reset, cid=0x%x\n",
+ qedi_conn->iscsi_conn_id);
+ WARN_ON(1);
+ }
+}
+
+static int qedi_wait_for_cleanup_request(struct qedi_ctx *qedi,
+ struct qedi_conn *qedi_conn,
+ struct iscsi_task *task,
+ struct qedi_cmd *qedi_cmd,
+ struct qedi_work_map *list_work)
+{
+ struct qedi_cmd *cmd = (struct qedi_cmd *)task->dd_data;
+ int wait;
+
+ wait = wait_event_interruptible_timeout(qedi_conn->wait_queue,
+ ((qedi_cmd->state ==
+ CLEANUP_RECV) ||
+ ((qedi_cmd->type == TYPEIO) &&
+ (cmd->state ==
+ RESPONSE_RECEIVED))),
+ 5 * HZ);
+ if (!wait) {
+ qedi_cmd->state = CLEANUP_WAIT_FAILED;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "Cleanup timedout tid=0x%x, issue connection recovery, cid=0x%x\n",
+ cmd->task_id, qedi_conn->iscsi_conn_id);
+
+ return -1;
+ }
+ return 0;
+}
+
+static void qedi_tmf_work(struct work_struct *work)
+{
+ struct qedi_cmd *qedi_cmd =
+ container_of(work, struct qedi_cmd, tmf_work);
+ struct qedi_conn *qedi_conn = qedi_cmd->conn;
+ struct qedi_ctx *qedi = qedi_conn->qedi;
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_cls_session *cls_sess;
+ struct qedi_work_map *list_work = NULL;
+ struct iscsi_task *mtask;
+ struct qedi_cmd *cmd;
+ struct iscsi_task *ctask;
+ struct iscsi_tm *tmf_hdr;
+ s16 rval = 0;
+ s16 tid = 0;
+
+ mtask = qedi_cmd->task;
+ tmf_hdr = (struct iscsi_tm *)mtask->hdr;
+ cls_sess = iscsi_conn_to_session(qedi_conn->cls_conn);
+ set_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags);
+
+ ctask = iscsi_itt_to_task(conn, tmf_hdr->rtt);
+ if (!ctask || !ctask->sc) {
+ QEDI_ERR(&qedi->dbg_ctx, "Task already completed\n");
+ goto abort_ret;
+ }
+
+ cmd = (struct qedi_cmd *)ctask->dd_data;
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "Abort tmf rtt=0x%x, cmd itt=0x%x, cmd tid=0x%x, cid=0x%x\n",
+ get_itt(tmf_hdr->rtt), get_itt(ctask->itt), cmd->task_id,
+ qedi_conn->iscsi_conn_id);
+
+ if (do_not_recover) {
+ QEDI_ERR(&qedi->dbg_ctx, "DONT SEND CLEANUP/ABORT %d\n",
+ do_not_recover);
+ goto abort_ret;
+ }
+
+ list_work = kzalloc(sizeof(*list_work), GFP_ATOMIC);
+ if (!list_work) {
+ QEDI_ERR(&qedi->dbg_ctx, "Memory alloction failed\n");
+ goto abort_ret;
+ }
+
+ qedi_cmd->type = TYPEIO;
+ list_work->qedi_cmd = qedi_cmd;
+ list_work->rtid = cmd->task_id;
+ list_work->state = QEDI_WORK_SCHEDULED;
+ qedi_cmd->list_tmf_work = list_work;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "Queue tmf work=%p, list node=%p, cid=0x%x, tmf flags=0x%x\n",
+ list_work->ptr_tmf_work, list_work, qedi_conn->iscsi_conn_id,
+ tmf_hdr->flags);
+
+ spin_lock_bh(&qedi_conn->tmf_work_lock);
+ list_add_tail(&list_work->list, &qedi_conn->tmf_work_list);
+ spin_unlock_bh(&qedi_conn->tmf_work_lock);
+
+ qedi_iscsi_cleanup_task(ctask, false);
+
+ rval = qedi_wait_for_cleanup_request(qedi, qedi_conn, ctask, qedi_cmd,
+ list_work);
+ if (rval == -1) {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "FW cleanup got escalated, cid=0x%x\n",
+ qedi_conn->iscsi_conn_id);
+ goto ldel_exit;
+ }
+
+ tid = qedi_get_task_idx(qedi);
+ if (tid == -1) {
+ QEDI_ERR(&qedi->dbg_ctx, "Invalid tid, cid=0x%x\n",
+ qedi_conn->iscsi_conn_id);
+ goto ldel_exit;
+ }
+
+ qedi_cmd->task_id = tid;
+ qedi_send_iscsi_tmf(qedi_conn, qedi_cmd->task);
+
+abort_ret:
+ clear_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags);
+ return;
+
+ldel_exit:
+ spin_lock_bh(&qedi_conn->tmf_work_lock);
+ if (!qedi_cmd->list_tmf_work) {
+ list_del_init(&list_work->list);
+ qedi_cmd->list_tmf_work = NULL;
+ kfree(list_work);
+ }
+ spin_unlock_bh(&qedi_conn->tmf_work_lock);
+
+ spin_lock(&qedi_conn->list_lock);
+ list_del_init(&cmd->io_cmd);
+ qedi_conn->active_cmd_count--;
+ spin_unlock(&qedi_conn->list_lock);
+
+ clear_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags);
+}
+
+static int qedi_send_iscsi_tmf(struct qedi_conn *qedi_conn,
+ struct iscsi_task *mtask)
+{
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct qedi_ctx *qedi = qedi_conn->qedi;
+ struct iscsi_task_context *fw_task_ctx;
+ struct iscsi_tmf_request_hdr *fw_tmf_request;
+ struct iscsi_sge *single_sge;
+ struct qedi_cmd *qedi_cmd;
+ struct qedi_cmd *cmd;
+ struct iscsi_task *ctask;
+ struct iscsi_tm *tmf_hdr;
+ struct iscsi_sge *req_sge;
+ struct iscsi_sge *resp_sge;
+ u32 lun[2];
+ s16 tid = 0, ptu_invalidate = 0;
+
+ req_sge = (struct iscsi_sge *)qedi_conn->gen_pdu.req_bd_tbl;
+ resp_sge = (struct iscsi_sge *)qedi_conn->gen_pdu.resp_bd_tbl;
+ qedi_cmd = (struct qedi_cmd *)mtask->dd_data;
+ tmf_hdr = (struct iscsi_tm *)mtask->hdr;
+
+ tid = qedi_cmd->task_id;
+ qedi_update_itt_map(qedi, tid, mtask->itt, qedi_cmd);
+
+ fw_task_ctx = qedi_get_task_mem(&qedi->tasks, tid);
+ memset(fw_task_ctx, 0, sizeof(struct iscsi_task_context));
+
+ fw_tmf_request = &fw_task_ctx->ystorm_st_context.pdu_hdr.tmf_request;
+ fw_tmf_request->itt = qedi_set_itt(tid, get_itt(mtask->itt));
+ fw_tmf_request->cmd_sn = be32_to_cpu(tmf_hdr->cmdsn);
+
+ memcpy(lun, &tmf_hdr->lun, sizeof(struct scsi_lun));
+ fw_tmf_request->lun.lo = be32_to_cpu(lun[0]);
+ fw_tmf_request->lun.hi = be32_to_cpu(lun[1]);
+
+ if (qedi->tid_reuse_count[tid] == QEDI_MAX_TASK_NUM) {
+ ptu_invalidate = 1;
+ qedi->tid_reuse_count[tid] = 0;
+ }
+ fw_task_ctx->ystorm_st_context.state.reuse_count =
+ qedi->tid_reuse_count[tid];
+ fw_task_ctx->mstorm_st_context.reuse_count =
+ qedi->tid_reuse_count[tid]++;
+
+ if ((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) ==
+ ISCSI_TM_FUNC_ABORT_TASK) {
+ ctask = iscsi_itt_to_task(conn, tmf_hdr->rtt);
+ if (!ctask || !ctask->sc) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "Could not get reference task\n");
+ return 0;
+ }
+ cmd = (struct qedi_cmd *)ctask->dd_data;
+ fw_tmf_request->rtt =
+ qedi_set_itt(cmd->task_id,
+ get_itt(tmf_hdr->rtt));
+ } else {
+ fw_tmf_request->rtt = ISCSI_RESERVED_TAG;
+ }
+
+ fw_tmf_request->opcode = tmf_hdr->opcode;
+ fw_tmf_request->function = tmf_hdr->flags;
+ fw_tmf_request->hdr_second_dword = ntoh24(tmf_hdr->dlength);
+ fw_tmf_request->ref_cmd_sn = be32_to_cpu(tmf_hdr->refcmdsn);
+
+ single_sge = &fw_task_ctx->mstorm_st_context.sgl_union.single_sge;
+ fw_task_ctx->mstorm_st_context.task_type = ISCSI_TASK_TYPE_MIDPATH;
+ fw_task_ctx->mstorm_ag_context.task_cid = (u16)qedi_conn->iscsi_conn_id;
+ single_sge->sge_addr.lo = resp_sge->sge_addr.lo;
+ single_sge->sge_addr.hi = resp_sge->sge_addr.hi;
+ single_sge->sge_len = resp_sge->sge_len;
+
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SINGLE_SGE, 1);
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SLOW_IO, 0);
+ fw_task_ctx->mstorm_st_context.sgl_size = 1;
+ fw_task_ctx->mstorm_st_context.rem_task_size = resp_sge->sge_len;
+
+ /* Ustorm context */
+ fw_task_ctx->ustorm_st_context.rem_rcv_len = 0;
+ fw_task_ctx->ustorm_st_context.exp_data_transfer_len = 0;
+ fw_task_ctx->ustorm_st_context.exp_data_sn = 0;
+ fw_task_ctx->ustorm_st_context.task_type = ISCSI_TASK_TYPE_MIDPATH;
+ fw_task_ctx->ustorm_st_context.cq_rss_number = 0;
+
+ SET_FIELD(fw_task_ctx->ustorm_st_context.flags,
+ USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP, 0);
+ SET_FIELD(fw_task_ctx->ustorm_st_context.reg1.reg1_map,
+ ISCSI_REG1_NUM_FAST_SGES, 0);
+
+ fw_task_ctx->ustorm_ag_context.icid = (u16)qedi_conn->iscsi_conn_id;
+ SET_FIELD(fw_task_ctx->ustorm_ag_context.flags1,
+ USTORM_ISCSI_TASK_AG_CTX_R2T2RECV, 1);
+ fw_task_ctx->ustorm_st_context.lun.lo = be32_to_cpu(lun[0]);
+ fw_task_ctx->ustorm_st_context.lun.hi = be32_to_cpu(lun[1]);
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "Add TMF to SQ, tmf tid=0x%x, itt=0x%x, cid=0x%x\n",
+ tid, mtask->itt, qedi_conn->iscsi_conn_id);
+
+ spin_lock(&qedi_conn->list_lock);
+ list_add_tail(&qedi_cmd->io_cmd, &qedi_conn->active_cmd_list);
+ qedi_cmd->io_cmd_in_list = true;
+ qedi_conn->active_cmd_count++;
+ spin_unlock(&qedi_conn->list_lock);
+
+ qedi_add_to_sq(qedi_conn, mtask, tid, ptu_invalidate, false);
+ qedi_ring_doorbell(qedi_conn);
+ return 0;
+}
+
+int qedi_iscsi_abort_work(struct qedi_conn *qedi_conn,
+ struct iscsi_task *mtask)
+{
+ struct qedi_ctx *qedi = qedi_conn->qedi;
+ struct iscsi_tm *tmf_hdr;
+ struct qedi_cmd *qedi_cmd = (struct qedi_cmd *)mtask->dd_data;
+ s16 tid = 0;
+
+ tmf_hdr = (struct iscsi_tm *)mtask->hdr;
+ qedi_cmd->task = mtask;
+
+ /* If abort task then schedule the work and return */
+ if ((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) ==
+ ISCSI_TM_FUNC_ABORT_TASK) {
+ qedi_cmd->state = CLEANUP_WAIT;
+ INIT_WORK(&qedi_cmd->tmf_work, qedi_tmf_work);
+ queue_work(qedi->tmf_thread, &qedi_cmd->tmf_work);
+
+ } else if (((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) ==
+ ISCSI_TM_FUNC_LOGICAL_UNIT_RESET) ||
+ ((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) ==
+ ISCSI_TM_FUNC_TARGET_WARM_RESET) ||
+ ((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) ==
+ ISCSI_TM_FUNC_TARGET_COLD_RESET)) {
+ tid = qedi_get_task_idx(qedi);
+ if (tid == -1) {
+ QEDI_ERR(&qedi->dbg_ctx, "Invalid tid, cid=0x%x\n",
+ qedi_conn->iscsi_conn_id);
+ return -1;
+ }
+ qedi_cmd->task_id = tid;
+
+ qedi_send_iscsi_tmf(qedi_conn, qedi_cmd->task);
+
+ } else {
+ QEDI_ERR(&qedi->dbg_ctx, "Invalid tmf, cid=0x%x\n",
+ qedi_conn->iscsi_conn_id);
+ return -1;
+ }
+
+ return 0;
+}
+
int qedi_send_iscsi_text(struct qedi_conn *qedi_conn,
struct iscsi_task *task)
{
@@ -1104,3 +1900,479 @@ int qedi_send_iscsi_nopout(struct qedi_conn *qedi_conn,
qedi_ring_doorbell(qedi_conn);
return 0;
}
+
+static int qedi_split_bd(struct qedi_cmd *cmd, u64 addr, int sg_len,
+ int bd_index)
+{
+ struct iscsi_sge *bd = cmd->io_tbl.sge_tbl;
+ int frag_size, sg_frags;
+
+ sg_frags = 0;
+
+ while (sg_len) {
+ if (addr % QEDI_PAGE_SIZE)
+ frag_size =
+ (QEDI_PAGE_SIZE - (addr % QEDI_PAGE_SIZE));
+ else
+ frag_size = (sg_len > QEDI_BD_SPLIT_SZ) ? 0 :
+ (sg_len % QEDI_BD_SPLIT_SZ);
+
+ if (frag_size == 0)
+ frag_size = QEDI_BD_SPLIT_SZ;
+
+ bd[bd_index + sg_frags].sge_addr.lo = (addr & 0xffffffff);
+ bd[bd_index + sg_frags].sge_addr.hi = (addr >> 32);
+ bd[bd_index + sg_frags].sge_len = (u16)frag_size;
+ QEDI_INFO(&cmd->conn->qedi->dbg_ctx, QEDI_LOG_IO,
+ "split sge %d: addr=%llx, len=%x",
+ (bd_index + sg_frags), addr, frag_size);
+
+ addr += (u64)frag_size;
+ sg_frags++;
+ sg_len -= frag_size;
+ }
+ return sg_frags;
+}
+
+static int qedi_map_scsi_sg(struct qedi_ctx *qedi, struct qedi_cmd *cmd)
+{
+ struct scsi_cmnd *sc = cmd->scsi_cmd;
+ struct iscsi_sge *bd = cmd->io_tbl.sge_tbl;
+ struct scatterlist *sg;
+ int byte_count = 0;
+ int bd_count = 0;
+ int sg_count;
+ int sg_len;
+ int sg_frags;
+ u64 addr, end_addr;
+ int i;
+
+ WARN_ON(scsi_sg_count(sc) > QEDI_ISCSI_MAX_BDS_PER_CMD);
+
+ sg_count = dma_map_sg(&qedi->pdev->dev, scsi_sglist(sc),
+ scsi_sg_count(sc), sc->sc_data_direction);
+
+ /*
+ * New condition to send single SGE as cached-SGL.
+ * Single SGE with length less than 64K.
+ */
+ sg = scsi_sglist(sc);
+ if ((sg_count == 1) && (sg_dma_len(sg) <= MAX_SGLEN_FOR_CACHESGL)) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64)sg_dma_address(sg);
+
+ bd[bd_count].sge_addr.lo = (addr & 0xffffffff);
+ bd[bd_count].sge_addr.hi = (addr >> 32);
+ bd[bd_count].sge_len = (u16)sg_len;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_IO,
+ "single-cashed-sgl: bd_count:%d addr=%llx, len=%x",
+ sg_count, addr, sg_len);
+
+ return ++bd_count;
+ }
+
+ scsi_for_each_sg(sc, sg, sg_count, i) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64)sg_dma_address(sg);
+ end_addr = (addr + sg_len);
+
+ /*
+ * first sg elem in the 'list',
+ * check if end addr is page-aligned.
+ */
+ if ((i == 0) && (sg_count > 1) && (end_addr % QEDI_PAGE_SIZE))
+ cmd->use_slowpath = true;
+
+ /*
+ * last sg elem in the 'list',
+ * check if start addr is page-aligned.
+ */
+ else if ((i == (sg_count - 1)) &&
+ (sg_count > 1) && (addr % QEDI_PAGE_SIZE))
+ cmd->use_slowpath = true;
+
+ /*
+ * middle sg elements in list,
+ * check if start and end addr is page-aligned
+ */
+ else if ((i != 0) && (i != (sg_count - 1)) &&
+ ((addr % QEDI_PAGE_SIZE) ||
+ (end_addr % QEDI_PAGE_SIZE)))
+ cmd->use_slowpath = true;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_IO, "sg[%d] size=0x%x",
+ i, sg_len);
+
+ if (sg_len > QEDI_BD_SPLIT_SZ) {
+ sg_frags = qedi_split_bd(cmd, addr, sg_len, bd_count);
+ } else {
+ sg_frags = 1;
+ bd[bd_count].sge_addr.lo = addr & 0xffffffff;
+ bd[bd_count].sge_addr.hi = addr >> 32;
+ bd[bd_count].sge_len = sg_len;
+ }
+ byte_count += sg_len;
+ bd_count += sg_frags;
+ }
+
+ if (byte_count != scsi_bufflen(sc))
+ QEDI_ERR(&qedi->dbg_ctx,
+ "byte_count = %d != scsi_bufflen = %d\n", byte_count,
+ scsi_bufflen(sc));
+ else
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_IO, "byte_count = %d\n",
+ byte_count);
+
+ WARN_ON(byte_count != scsi_bufflen(sc));
+
+ return bd_count;
+}
+
+static void qedi_iscsi_map_sg_list(struct qedi_cmd *cmd)
+{
+ int bd_count;
+ struct scsi_cmnd *sc = cmd->scsi_cmd;
+
+ if (scsi_sg_count(sc)) {
+ bd_count = qedi_map_scsi_sg(cmd->conn->qedi, cmd);
+ if (bd_count == 0)
+ return;
+ } else {
+ struct iscsi_sge *bd = cmd->io_tbl.sge_tbl;
+
+ bd[0].sge_addr.lo = 0;
+ bd[0].sge_addr.hi = 0;
+ bd[0].sge_len = 0;
+ bd_count = 0;
+ }
+ cmd->io_tbl.sge_valid = bd_count;
+}
+
+static void qedi_cpy_scsi_cdb(struct scsi_cmnd *sc, u32 *dstp)
+{
+ u32 dword;
+ int lpcnt;
+ u8 *srcp;
+
+ lpcnt = sc->cmd_len / sizeof(dword);
+ srcp = (u8 *)sc->cmnd;
+ while (lpcnt--) {
+ memcpy(&dword, (const void *)srcp, 4);
+ *dstp = cpu_to_be32(dword);
+ srcp += 4;
+ dstp++;
+ }
+ if (sc->cmd_len & 0x3) {
+ dword = (u32)srcp[0] | ((u32)srcp[1] << 8);
+ *dstp = cpu_to_be32(dword);
+ }
+}
+
+void qedi_trace_io(struct qedi_ctx *qedi, struct iscsi_task *task,
+ u16 tid, int8_t direction)
+{
+ struct qedi_io_log *io_log;
+ struct iscsi_conn *conn = task->conn;
+ struct qedi_conn *qedi_conn = conn->dd_data;
+ struct scsi_cmnd *sc_cmd = task->sc;
+ unsigned long flags;
+ u8 op;
+
+ spin_lock_irqsave(&qedi->io_trace_lock, flags);
+
+ io_log = &qedi->io_trace_buf[qedi->io_trace_idx];
+ io_log->direction = direction;
+ io_log->task_id = tid;
+ io_log->cid = qedi_conn->iscsi_conn_id;
+ io_log->lun = sc_cmd->device->lun;
+ io_log->op = sc_cmd->cmnd[0];
+ op = sc_cmd->cmnd[0];
+ io_log->lba[0] = sc_cmd->cmnd[2];
+ io_log->lba[1] = sc_cmd->cmnd[3];
+ io_log->lba[2] = sc_cmd->cmnd[4];
+ io_log->lba[3] = sc_cmd->cmnd[5];
+ io_log->bufflen = scsi_bufflen(sc_cmd);
+ io_log->sg_count = scsi_sg_count(sc_cmd);
+ io_log->fast_sgs = qedi->fast_sgls;
+ io_log->cached_sgs = qedi->cached_sgls;
+ io_log->slow_sgs = qedi->slow_sgls;
+ io_log->cached_sge = qedi->use_cached_sge;
+ io_log->slow_sge = qedi->use_slow_sge;
+ io_log->fast_sge = qedi->use_fast_sge;
+ io_log->result = sc_cmd->result;
+ io_log->jiffies = jiffies;
+ io_log->blk_req_cpu = smp_processor_id();
+
+ if (direction == QEDI_IO_TRACE_REQ) {
+ /* For requests we only care about the submission CPU */
+ io_log->req_cpu = smp_processor_id() % qedi->num_queues;
+ io_log->intr_cpu = 0;
+ io_log->blk_rsp_cpu = 0;
+ } else if (direction == QEDI_IO_TRACE_RSP) {
+ io_log->req_cpu = smp_processor_id() % qedi->num_queues;
+ io_log->intr_cpu = qedi->intr_cpu;
+ io_log->blk_rsp_cpu = smp_processor_id();
+ }
+
+ qedi->io_trace_idx++;
+ if (qedi->io_trace_idx == QEDI_IO_TRACE_SIZE)
+ qedi->io_trace_idx = 0;
+
+ qedi->use_cached_sge = false;
+ qedi->use_slow_sge = false;
+ qedi->use_fast_sge = false;
+
+ spin_unlock_irqrestore(&qedi->io_trace_lock, flags);
+}
+
+int qedi_iscsi_send_ioreq(struct iscsi_task *task)
+{
+ struct iscsi_conn *conn = task->conn;
+ struct iscsi_session *session = conn->session;
+ struct Scsi_Host *shost = iscsi_session_to_shost(session->cls_session);
+ struct qedi_ctx *qedi = iscsi_host_priv(shost);
+ struct qedi_conn *qedi_conn = conn->dd_data;
+ struct qedi_cmd *cmd = task->dd_data;
+ struct scsi_cmnd *sc = task->sc;
+ struct iscsi_task_context *fw_task_ctx;
+ struct iscsi_cached_sge_ctx *cached_sge;
+ struct iscsi_phys_sgl_ctx *phys_sgl;
+ struct iscsi_virt_sgl_ctx *virt_sgl;
+ struct ystorm_iscsi_task_st_ctx *yst_cxt;
+ struct mstorm_iscsi_task_st_ctx *mst_cxt;
+ struct iscsi_sgl *sgl_struct;
+ struct iscsi_sge *single_sge;
+ struct iscsi_scsi_req *hdr = (struct iscsi_scsi_req *)task->hdr;
+ struct iscsi_sge *bd = cmd->io_tbl.sge_tbl;
+ enum iscsi_task_type task_type;
+ struct iscsi_cmd_hdr *fw_cmd;
+ u32 lun[2];
+ u16 cq_idx = smp_processor_id() % qedi->num_queues;
+ s16 ptu_invalidate = 0;
+ s16 tid = 0;
+ u8 num_fast_sgs;
+
+ tid = qedi_get_task_idx(qedi);
+ if (tid == -1)
+ return -ENOMEM;
+
+ qedi_iscsi_map_sg_list(cmd);
+
+ int_to_scsilun(sc->device->lun, (struct scsi_lun *)lun);
+ fw_task_ctx = qedi_get_task_mem(&qedi->tasks, tid);
+
+ memset(fw_task_ctx, 0, sizeof(struct iscsi_task_context));
+ cmd->task_id = tid;
+
+ /* Ystorm context */
+ fw_cmd = &fw_task_ctx->ystorm_st_context.pdu_hdr.cmd;
+ SET_FIELD(fw_cmd->flags_attr, ISCSI_CMD_HDR_ATTR, ISCSI_ATTR_SIMPLE);
+
+ if (sc->sc_data_direction == DMA_TO_DEVICE) {
+ if (conn->session->initial_r2t_en) {
+ fw_task_ctx->ustorm_ag_context.exp_data_acked =
+ min((conn->session->imm_data_en *
+ conn->max_xmit_dlength),
+ conn->session->first_burst);
+ fw_task_ctx->ustorm_ag_context.exp_data_acked =
+ min(fw_task_ctx->ustorm_ag_context.exp_data_acked,
+ scsi_bufflen(sc));
+ } else {
+ fw_task_ctx->ustorm_ag_context.exp_data_acked =
+ min(conn->session->first_burst, scsi_bufflen(sc));
+ }
+
+ SET_FIELD(fw_cmd->flags_attr, ISCSI_CMD_HDR_WRITE, 1);
+ task_type = ISCSI_TASK_TYPE_INITIATOR_WRITE;
+ } else {
+ if (scsi_bufflen(sc))
+ SET_FIELD(fw_cmd->flags_attr, ISCSI_CMD_HDR_READ, 1);
+ task_type = ISCSI_TASK_TYPE_INITIATOR_READ;
+ }
+
+ fw_cmd->lun.lo = be32_to_cpu(lun[0]);
+ fw_cmd->lun.hi = be32_to_cpu(lun[1]);
+
+ qedi_update_itt_map(qedi, tid, task->itt, cmd);
+ fw_cmd->itt = qedi_set_itt(tid, get_itt(task->itt));
+ fw_cmd->expected_transfer_length = scsi_bufflen(sc);
+ fw_cmd->cmd_sn = be32_to_cpu(hdr->cmdsn);
+ fw_cmd->opcode = hdr->opcode;
+ qedi_cpy_scsi_cdb(sc, (u32 *)fw_cmd->cdb);
+
+ /* Mstorm context */
+ fw_task_ctx->mstorm_st_context.sense_db.lo = (u32)cmd->sense_buffer_dma;
+ fw_task_ctx->mstorm_st_context.sense_db.hi =
+ (u32)((u64)cmd->sense_buffer_dma >> 32);
+ fw_task_ctx->mstorm_ag_context.task_cid = qedi_conn->iscsi_conn_id;
+ fw_task_ctx->mstorm_st_context.task_type = task_type;
+
+ if (qedi->tid_reuse_count[tid] == QEDI_MAX_TASK_NUM) {
+ ptu_invalidate = 1;
+ qedi->tid_reuse_count[tid] = 0;
+ }
+ fw_task_ctx->ystorm_st_context.state.reuse_count =
+ qedi->tid_reuse_count[tid];
+ fw_task_ctx->mstorm_st_context.reuse_count =
+ qedi->tid_reuse_count[tid]++;
+
+ /* Ustorm context */
+ fw_task_ctx->ustorm_st_context.rem_rcv_len = scsi_bufflen(sc);
+ fw_task_ctx->ustorm_st_context.exp_data_transfer_len = scsi_bufflen(sc);
+ fw_task_ctx->ustorm_st_context.exp_data_sn =
+ be32_to_cpu(hdr->exp_statsn);
+ fw_task_ctx->ustorm_st_context.task_type = task_type;
+ fw_task_ctx->ustorm_st_context.cq_rss_number = cq_idx;
+ fw_task_ctx->ustorm_ag_context.icid = (u16)qedi_conn->iscsi_conn_id;
+
+ SET_FIELD(fw_task_ctx->ustorm_ag_context.flags1,
+ USTORM_ISCSI_TASK_AG_CTX_R2T2RECV, 1);
+ SET_FIELD(fw_task_ctx->ustorm_st_context.flags,
+ USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP, 0);
+
+ num_fast_sgs = (cmd->io_tbl.sge_valid ?
+ min((u16)QEDI_FAST_SGE_COUNT,
+ (u16)cmd->io_tbl.sge_valid) : 0);
+ SET_FIELD(fw_task_ctx->ustorm_st_context.reg1.reg1_map,
+ ISCSI_REG1_NUM_FAST_SGES, num_fast_sgs);
+
+ fw_task_ctx->ustorm_st_context.lun.lo = be32_to_cpu(lun[0]);
+ fw_task_ctx->ustorm_st_context.lun.hi = be32_to_cpu(lun[1]);
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_IO, "Total sge count [%d]\n",
+ cmd->io_tbl.sge_valid);
+
+ yst_cxt = &fw_task_ctx->ystorm_st_context;
+ mst_cxt = &fw_task_ctx->mstorm_st_context;
+ /* Tx path */
+ if (task_type == ISCSI_TASK_TYPE_INITIATOR_WRITE) {
+ /* not considering superIO or FastIO */
+ if (cmd->io_tbl.sge_valid == 1) {
+ cached_sge = &yst_cxt->state.sgl_ctx_union.cached_sge;
+ cached_sge->sge.sge_addr.lo = bd[0].sge_addr.lo;
+ cached_sge->sge.sge_addr.hi = bd[0].sge_addr.hi;
+ cached_sge->sge.sge_len = bd[0].sge_len;
+ qedi->cached_sgls++;
+ } else if ((cmd->io_tbl.sge_valid != 1) && cmd->use_slowpath) {
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SLOW_IO, 1);
+ SET_FIELD(fw_task_ctx->ustorm_st_context.reg1.reg1_map,
+ ISCSI_REG1_NUM_FAST_SGES, 0);
+ phys_sgl = &yst_cxt->state.sgl_ctx_union.phys_sgl;
+ phys_sgl->sgl_base.lo = (u32)(cmd->io_tbl.sge_tbl_dma);
+ phys_sgl->sgl_base.hi =
+ (u32)((u64)cmd->io_tbl.sge_tbl_dma >> 32);
+ phys_sgl->sgl_size = cmd->io_tbl.sge_valid;
+ qedi->slow_sgls++;
+ } else if ((cmd->io_tbl.sge_valid != 1) && !cmd->use_slowpath) {
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SLOW_IO, 0);
+ SET_FIELD(fw_task_ctx->ustorm_st_context.reg1.reg1_map,
+ ISCSI_REG1_NUM_FAST_SGES,
+ min((u16)QEDI_FAST_SGE_COUNT,
+ (u16)cmd->io_tbl.sge_valid));
+ virt_sgl = &yst_cxt->state.sgl_ctx_union.virt_sgl;
+ virt_sgl->sgl_base.lo = (u32)(cmd->io_tbl.sge_tbl_dma);
+ virt_sgl->sgl_base.hi =
+ (u32)((u64)cmd->io_tbl.sge_tbl_dma >> 32);
+ virt_sgl->sgl_initial_offset =
+ (u32)bd[0].sge_addr.lo & (QEDI_PAGE_SIZE - 1);
+ qedi->fast_sgls++;
+ }
+ fw_task_ctx->mstorm_st_context.sgl_size = cmd->io_tbl.sge_valid;
+ fw_task_ctx->mstorm_st_context.rem_task_size = scsi_bufflen(sc);
+ } else {
+ /* Rx path */
+ if (cmd->io_tbl.sge_valid == 1) {
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SLOW_IO, 0);
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SINGLE_SGE, 1);
+ single_sge = &mst_cxt->sgl_union.single_sge;
+ single_sge->sge_addr.lo = bd[0].sge_addr.lo;
+ single_sge->sge_addr.hi = bd[0].sge_addr.hi;
+ single_sge->sge_len = bd[0].sge_len;
+ qedi->cached_sgls++;
+ } else if ((cmd->io_tbl.sge_valid != 1) && cmd->use_slowpath) {
+ sgl_struct = &mst_cxt->sgl_union.sgl_struct;
+ sgl_struct->sgl_addr.lo =
+ (u32)(cmd->io_tbl.sge_tbl_dma);
+ sgl_struct->sgl_addr.hi =
+ (u32)((u64)cmd->io_tbl.sge_tbl_dma >> 32);
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SLOW_IO, 1);
+ SET_FIELD(fw_task_ctx->ustorm_st_context.reg1.reg1_map,
+ ISCSI_REG1_NUM_FAST_SGES, 0);
+ sgl_struct->updated_sge_size = 0;
+ sgl_struct->updated_sge_offset = 0;
+ qedi->slow_sgls++;
+ } else if ((cmd->io_tbl.sge_valid != 1) && !cmd->use_slowpath) {
+ sgl_struct = &mst_cxt->sgl_union.sgl_struct;
+ sgl_struct->sgl_addr.lo =
+ (u32)(cmd->io_tbl.sge_tbl_dma);
+ sgl_struct->sgl_addr.hi =
+ (u32)((u64)cmd->io_tbl.sge_tbl_dma >> 32);
+ sgl_struct->byte_offset =
+ (u32)bd[0].sge_addr.lo & (QEDI_PAGE_SIZE - 1);
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SLOW_IO, 0);
+ SET_FIELD(fw_task_ctx->ustorm_st_context.reg1.reg1_map,
+ ISCSI_REG1_NUM_FAST_SGES, 0);
+ sgl_struct->updated_sge_size = 0;
+ sgl_struct->updated_sge_offset = 0;
+ qedi->fast_sgls++;
+ }
+ fw_task_ctx->mstorm_st_context.sgl_size = cmd->io_tbl.sge_valid;
+ fw_task_ctx->mstorm_st_context.rem_task_size = scsi_bufflen(sc);
+ }
+
+ if (cmd->io_tbl.sge_valid == 1)
+ /* Singel-SGL */
+ qedi->use_cached_sge = true;
+ else {
+ if (cmd->use_slowpath)
+ qedi->use_slow_sge = true;
+ else
+ qedi->use_fast_sge = true;
+ }
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_IO,
+ "%s: %s-SGL: num_sges=0x%x first-sge-lo=0x%x first-sge-hi=0x%x",
+ (task_type == ISCSI_TASK_TYPE_INITIATOR_WRITE) ?
+ "Write " : "Read ", (cmd->io_tbl.sge_valid == 1) ?
+ "Single" : (cmd->use_slowpath ? "SLOW" : "FAST"),
+ (u16)cmd->io_tbl.sge_valid, (u32)(cmd->io_tbl.sge_tbl_dma),
+ (u32)((u64)cmd->io_tbl.sge_tbl_dma >> 32));
+
+ /* Add command in active command list */
+ spin_lock(&qedi_conn->list_lock);
+ list_add_tail(&cmd->io_cmd, &qedi_conn->active_cmd_list);
+ cmd->io_cmd_in_list = true;
+ qedi_conn->active_cmd_count++;
+ spin_unlock(&qedi_conn->list_lock);
+
+ qedi_add_to_sq(qedi_conn, task, tid, ptu_invalidate, false);
+ qedi_ring_doorbell(qedi_conn);
+ if (io_tracing)
+ qedi_trace_io(qedi, task, tid, QEDI_IO_TRACE_REQ);
+
+ return 0;
+}
+
+int qedi_iscsi_cleanup_task(struct iscsi_task *task, bool mark_cmd_node_deleted)
+{
+ struct iscsi_conn *conn = task->conn;
+ struct qedi_conn *qedi_conn = conn->dd_data;
+ struct qedi_cmd *cmd = task->dd_data;
+ s16 ptu_invalidate = 0;
+
+ QEDI_INFO(&qedi_conn->qedi->dbg_ctx, QEDI_LOG_SCSI_TM,
+ "issue cleanup tid=0x%x itt=0x%x task_state=%d cmd_state=0%x cid=0x%x\n",
+ cmd->task_id, get_itt(task->itt), task->state,
+ cmd->state, qedi_conn->iscsi_conn_id);
+
+ qedi_add_to_sq(qedi_conn, task, cmd->task_id, ptu_invalidate, true);
+ qedi_ring_doorbell(qedi_conn);
+
+ return 0;
+}
diff --git a/drivers/scsi/qedi/qedi_gbl.h b/drivers/scsi/qedi/qedi_gbl.h
index 3af8bd7..e8661e5 100644
--- a/drivers/scsi/qedi/qedi_gbl.h
+++ b/drivers/scsi/qedi/qedi_gbl.h
@@ -28,11 +28,14 @@ int qedi_send_iscsi_login(struct qedi_conn *qedi_conn,
struct iscsi_task *task);
int qedi_send_iscsi_logout(struct qedi_conn *qedi_conn,
struct iscsi_task *task);
+int qedi_iscsi_abort_work(struct qedi_conn *qedi_conn,
+ struct iscsi_task *mtask);
int qedi_send_iscsi_text(struct qedi_conn *qedi_conn,
struct iscsi_task *task);
int qedi_send_iscsi_nopout(struct qedi_conn *qedi_conn,
struct iscsi_task *task,
char *datap, int data_len, int unsol);
+int qedi_iscsi_send_ioreq(struct iscsi_task *task);
int qedi_get_task_idx(struct qedi_ctx *qedi);
void qedi_clear_task_idx(struct qedi_ctx *qedi, int idx);
int qedi_iscsi_cleanup_task(struct iscsi_task *task,
@@ -53,6 +56,9 @@ void qedi_start_conn_recovery(struct qedi_ctx *qedi,
void qedi_reset_host_mtu(struct qedi_ctx *qedi, u16 mtu);
int qedi_recover_all_conns(struct qedi_ctx *qedi);
void qedi_fp_process_cqes(struct qedi_work *work);
+int qedi_cleanup_all_io(struct qedi_ctx *qedi,
+ struct qedi_conn *qedi_conn,
+ struct iscsi_task *task, bool in_recovery);
void qedi_trace_io(struct qedi_ctx *qedi, struct iscsi_task *task,
u16 tid, int8_t direction);
int qedi_alloc_id(struct qedi_portid_tbl *id_tbl, u16 id);
diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c
index 4a41367..1cc296b 100644
--- a/drivers/scsi/qedi/qedi_iscsi.c
+++ b/drivers/scsi/qedi/qedi_iscsi.c
@@ -47,6 +47,13 @@ struct scsi_host_template qedi_host_template = {
.module = THIS_MODULE,
.name = "QLogic QEDI 25/40/100Gb iSCSI Initiator Driver",
.proc_name = QEDI_MODULE_NAME,
+ .queuecommand = iscsi_queuecommand,
+ .eh_abort_handler = iscsi_eh_abort,
+ .eh_device_reset_handler = iscsi_eh_device_reset,
+ .eh_target_reset_handler = iscsi_eh_recover_target,
+ .eh_host_reset_handler = qedi_eh_host_reset,
+ .target_alloc = iscsi_target_alloc,
+ .change_queue_depth = scsi_change_queue_depth,
.can_queue = QEDI_MAX_ISCSI_TASK,
.this_id = -1,
.sg_tablesize = QEDI_ISCSI_MAX_BDS_PER_CMD,
@@ -748,6 +755,9 @@ static int qedi_iscsi_send_generic_request(struct iscsi_task *task)
case ISCSI_OP_LOGOUT:
rc = qedi_send_iscsi_logout(qedi_conn, task);
break;
+ case ISCSI_OP_SCSI_TMFUNC:
+ rc = qedi_iscsi_abort_work(qedi_conn, task);
+ break;
case ISCSI_OP_TEXT:
rc = qedi_send_iscsi_text(qedi_conn, task);
break;
@@ -797,6 +807,9 @@ static int qedi_task_xmit(struct iscsi_task *task)
if (!sc)
return qedi_mtask_xmit(conn, task);
+
+ cmd->scsi_cmd = sc;
+ return qedi_iscsi_send_ioreq(task);
}
static struct iscsi_endpoint *
diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c
index d3f47dd..b6010e0 100644
--- a/drivers/scsi/qedi/qedi_main.c
+++ b/drivers/scsi/qedi/qedi_main.c
@@ -43,6 +43,10 @@
module_param(debug, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, " Default debug level");
+uint io_tracing;
+module_param(io_tracing, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(io_tracing,
+ " Enable logging of SCSI requests/completions into trace buffer. (default off).");
const struct qed_iscsi_ops *qedi_ops;
static struct scsi_transport_template *qedi_scsi_transport;
static struct pci_driver qedi_pci_driver;
--
1.8.3.1
^ permalink raw reply related
* [PATCH v2 5/6] qedi: Add support for iSCSI session management.
From: Manish Rangankar @ 2016-11-08 6:57 UTC (permalink / raw)
To: martin.petersen, lduncan, cleech
Cc: linux-scsi, netdev, QLogic-Storage-Upstream, Yuval.Mintz
In-Reply-To: <1478588223-16183-1-git-send-email-manish.rangankar@cavium.com>
This patch adds support for iscsi_transport LLD Login,
Logout, NOP-IN/NOP-OUT, Async, Reject PDU processing
and Firmware async event handling support.
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
---
drivers/scsi/qedi/qedi_fw.c | 1106 +++++++++++++++++++++++++++
drivers/scsi/qedi/qedi_gbl.h | 67 ++
drivers/scsi/qedi/qedi_iscsi.c | 1611 ++++++++++++++++++++++++++++++++++++++++
drivers/scsi/qedi/qedi_iscsi.h | 232 ++++++
drivers/scsi/qedi/qedi_main.c | 166 +++++
5 files changed, 3182 insertions(+)
create mode 100644 drivers/scsi/qedi/qedi_fw.c
create mode 100644 drivers/scsi/qedi/qedi_gbl.h
create mode 100644 drivers/scsi/qedi/qedi_iscsi.c
create mode 100644 drivers/scsi/qedi/qedi_iscsi.h
diff --git a/drivers/scsi/qedi/qedi_fw.c b/drivers/scsi/qedi/qedi_fw.c
new file mode 100644
index 0000000..5ee62a2
--- /dev/null
+++ b/drivers/scsi/qedi/qedi_fw.c
@@ -0,0 +1,1106 @@
+/*
+ * QLogic iSCSI Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#include <linux/blkdev.h>
+#include <scsi/scsi_tcq.h>
+#include <linux/delay.h>
+
+#include "qedi.h"
+#include "qedi_iscsi.h"
+#include "qedi_gbl.h"
+
+static int qedi_send_iscsi_tmf(struct qedi_conn *qedi_conn,
+ struct iscsi_task *mtask);
+
+void qedi_iscsi_unmap_sg_list(struct qedi_cmd *cmd)
+{
+ struct scsi_cmnd *sc = cmd->scsi_cmd;
+
+ if (cmd->io_tbl.sge_valid && sc) {
+ cmd->io_tbl.sge_valid = 0;
+ scsi_dma_unmap(sc);
+ }
+}
+
+static void qedi_process_logout_resp(struct qedi_ctx *qedi,
+ union iscsi_cqe *cqe,
+ struct iscsi_task *task,
+ struct qedi_conn *qedi_conn)
+{
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_logout_rsp *resp_hdr;
+ struct iscsi_session *session = conn->session;
+ struct iscsi_logout_response_hdr *cqe_logout_response;
+ struct qedi_cmd *cmd;
+
+ cmd = (struct qedi_cmd *)task->dd_data;
+ cqe_logout_response = &cqe->cqe_common.iscsi_hdr.logout_response;
+ spin_lock(&session->back_lock);
+ resp_hdr = (struct iscsi_logout_rsp *)&qedi_conn->gen_pdu.resp_hdr;
+ memset(resp_hdr, 0, sizeof(struct iscsi_hdr));
+ resp_hdr->opcode = cqe_logout_response->opcode;
+ resp_hdr->flags = cqe_logout_response->flags;
+ resp_hdr->hlength = 0;
+
+ resp_hdr->itt = build_itt(cqe->cqe_solicited.itid, conn->session->age);
+ resp_hdr->statsn = cpu_to_be32(cqe_logout_response->stat_sn);
+ resp_hdr->exp_cmdsn = cpu_to_be32(cqe_logout_response->exp_cmd_sn);
+ resp_hdr->max_cmdsn = cpu_to_be32(cqe_logout_response->max_cmd_sn);
+
+ resp_hdr->t2wait = cpu_to_be32(cqe_logout_response->time2wait);
+ resp_hdr->t2retain = cpu_to_be32(cqe_logout_response->time2retain);
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_TID,
+ "Freeing tid=0x%x for cid=0x%x\n",
+ cmd->task_id, qedi_conn->iscsi_conn_id);
+
+ if (likely(cmd->io_cmd_in_list)) {
+ cmd->io_cmd_in_list = false;
+ list_del_init(&cmd->io_cmd);
+ qedi_conn->active_cmd_count--;
+ } else {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "Active cmd list node already deleted, tid=0x%x, cid=0x%x, io_cmd_node=%p\n",
+ cmd->task_id, qedi_conn->iscsi_conn_id,
+ &cmd->io_cmd);
+ }
+
+ cmd->state = RESPONSE_RECEIVED;
+ qedi_clear_task_idx(qedi, cmd->task_id);
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0);
+
+ spin_unlock(&session->back_lock);
+}
+
+static void qedi_process_text_resp(struct qedi_ctx *qedi,
+ union iscsi_cqe *cqe,
+ struct iscsi_task *task,
+ struct qedi_conn *qedi_conn)
+{
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+ struct iscsi_task_context *task_ctx;
+ struct iscsi_text_rsp *resp_hdr_ptr;
+ struct iscsi_text_response_hdr *cqe_text_response;
+ struct qedi_cmd *cmd;
+ int pld_len;
+ u32 *tmp;
+
+ cmd = (struct qedi_cmd *)task->dd_data;
+ task_ctx = qedi_get_task_mem(&qedi->tasks, cmd->task_id);
+
+ cqe_text_response = &cqe->cqe_common.iscsi_hdr.text_response;
+ spin_lock(&session->back_lock);
+ resp_hdr_ptr = (struct iscsi_text_rsp *)&qedi_conn->gen_pdu.resp_hdr;
+ memset(resp_hdr_ptr, 0, sizeof(struct iscsi_hdr));
+ resp_hdr_ptr->opcode = cqe_text_response->opcode;
+ resp_hdr_ptr->flags = cqe_text_response->flags;
+ resp_hdr_ptr->hlength = 0;
+
+ hton24(resp_hdr_ptr->dlength,
+ (cqe_text_response->hdr_second_dword &
+ ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK));
+ tmp = (u32 *)resp_hdr_ptr->dlength;
+
+ resp_hdr_ptr->itt = build_itt(cqe->cqe_solicited.itid,
+ conn->session->age);
+ resp_hdr_ptr->ttt = cqe_text_response->ttt;
+ resp_hdr_ptr->statsn = cpu_to_be32(cqe_text_response->stat_sn);
+ resp_hdr_ptr->exp_cmdsn = cpu_to_be32(cqe_text_response->exp_cmd_sn);
+ resp_hdr_ptr->max_cmdsn = cpu_to_be32(cqe_text_response->max_cmd_sn);
+
+ pld_len = cqe_text_response->hdr_second_dword &
+ ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK;
+ qedi_conn->gen_pdu.resp_wr_ptr = qedi_conn->gen_pdu.resp_buf + pld_len;
+
+ memset(task_ctx, '\0', sizeof(*task_ctx));
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_TID,
+ "Freeing tid=0x%x for cid=0x%x\n",
+ cmd->task_id, qedi_conn->iscsi_conn_id);
+
+ if (likely(cmd->io_cmd_in_list)) {
+ cmd->io_cmd_in_list = false;
+ list_del_init(&cmd->io_cmd);
+ qedi_conn->active_cmd_count--;
+ } else {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "Active cmd list node already deleted, tid=0x%x, cid=0x%x, io_cmd_node=%p\n",
+ cmd->task_id, qedi_conn->iscsi_conn_id,
+ &cmd->io_cmd);
+ }
+
+ cmd->state = RESPONSE_RECEIVED;
+ qedi_clear_task_idx(qedi, cmd->task_id);
+
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr_ptr,
+ qedi_conn->gen_pdu.resp_buf,
+ (qedi_conn->gen_pdu.resp_wr_ptr -
+ qedi_conn->gen_pdu.resp_buf));
+ spin_unlock(&session->back_lock);
+}
+
+static void qedi_process_login_resp(struct qedi_ctx *qedi,
+ union iscsi_cqe *cqe,
+ struct iscsi_task *task,
+ struct qedi_conn *qedi_conn)
+{
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+ struct iscsi_task_context *task_ctx;
+ struct iscsi_login_rsp *resp_hdr_ptr;
+ struct iscsi_login_response_hdr *cqe_login_response;
+ struct qedi_cmd *cmd;
+ int pld_len;
+ u32 *tmp;
+
+ cmd = (struct qedi_cmd *)task->dd_data;
+
+ cqe_login_response = &cqe->cqe_common.iscsi_hdr.login_response;
+ task_ctx = qedi_get_task_mem(&qedi->tasks, cmd->task_id);
+
+ spin_lock(&session->back_lock);
+ resp_hdr_ptr = (struct iscsi_login_rsp *)&qedi_conn->gen_pdu.resp_hdr;
+ memset(resp_hdr_ptr, 0, sizeof(struct iscsi_login_rsp));
+ resp_hdr_ptr->opcode = cqe_login_response->opcode;
+ resp_hdr_ptr->flags = cqe_login_response->flags_attr;
+ resp_hdr_ptr->hlength = 0;
+
+ hton24(resp_hdr_ptr->dlength,
+ (cqe_login_response->hdr_second_dword &
+ ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK));
+ tmp = (u32 *)resp_hdr_ptr->dlength;
+ resp_hdr_ptr->itt = build_itt(cqe->cqe_solicited.itid,
+ conn->session->age);
+ resp_hdr_ptr->tsih = cqe_login_response->tsih;
+ resp_hdr_ptr->statsn = cpu_to_be32(cqe_login_response->stat_sn);
+ resp_hdr_ptr->exp_cmdsn = cpu_to_be32(cqe_login_response->exp_cmd_sn);
+ resp_hdr_ptr->max_cmdsn = cpu_to_be32(cqe_login_response->max_cmd_sn);
+ resp_hdr_ptr->status_class = cqe_login_response->status_class;
+ resp_hdr_ptr->status_detail = cqe_login_response->status_detail;
+ pld_len = cqe_login_response->hdr_second_dword &
+ ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK;
+ qedi_conn->gen_pdu.resp_wr_ptr = qedi_conn->gen_pdu.resp_buf + pld_len;
+
+ if (likely(cmd->io_cmd_in_list)) {
+ cmd->io_cmd_in_list = false;
+ list_del_init(&cmd->io_cmd);
+ qedi_conn->active_cmd_count--;
+ }
+
+ memset(task_ctx, '\0', sizeof(*task_ctx));
+
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr_ptr,
+ qedi_conn->gen_pdu.resp_buf,
+ (qedi_conn->gen_pdu.resp_wr_ptr -
+ qedi_conn->gen_pdu.resp_buf));
+
+ spin_unlock(&session->back_lock);
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_TID,
+ "Freeing tid=0x%x for cid=0x%x\n",
+ cmd->task_id, qedi_conn->iscsi_conn_id);
+ cmd->state = RESPONSE_RECEIVED;
+ qedi_clear_task_idx(qedi, cmd->task_id);
+}
+
+static void qedi_get_rq_bdq_buf(struct qedi_ctx *qedi,
+ struct iscsi_cqe_unsolicited *cqe,
+ char *ptr, int len)
+{
+ u16 idx = 0;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "pld_len [%d], bdq_prod_idx [%d], idx [%d]\n",
+ len, qedi->bdq_prod_idx,
+ (qedi->bdq_prod_idx % qedi->rq_num_entries));
+
+ /* Obtain buffer address from rqe_opaque */
+ idx = cqe->rqe_opaque.lo;
+ if ((idx < 0) || (idx > (QEDI_BDQ_NUM - 1))) {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "wrong idx %d returned by FW, dropping the unsolicited pkt\n",
+ idx);
+ return;
+ }
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "rqe_opaque.lo [0x%p], rqe_opaque.hi [0x%p], idx [%d]\n",
+ cqe->rqe_opaque.lo, cqe->rqe_opaque.hi, idx);
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "unsol_cqe_type = %d\n", cqe->unsol_cqe_type);
+ switch (cqe->unsol_cqe_type) {
+ case ISCSI_CQE_UNSOLICITED_SINGLE:
+ case ISCSI_CQE_UNSOLICITED_FIRST:
+ if (len)
+ memcpy(ptr, (void *)qedi->bdq[idx].buf_addr, len);
+ break;
+ case ISCSI_CQE_UNSOLICITED_MIDDLE:
+ case ISCSI_CQE_UNSOLICITED_LAST:
+ break;
+ default:
+ break;
+ }
+}
+
+static void qedi_put_rq_bdq_buf(struct qedi_ctx *qedi,
+ struct iscsi_cqe_unsolicited *cqe,
+ int count)
+{
+ u16 tmp;
+ u16 idx = 0;
+ struct scsi_bd *pbl;
+
+ /* Obtain buffer address from rqe_opaque */
+ idx = cqe->rqe_opaque.lo;
+ if ((idx < 0) || (idx > (QEDI_BDQ_NUM - 1))) {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "wrong idx %d returned by FW, dropping the unsolicited pkt\n",
+ idx);
+ return;
+ }
+
+ pbl = (struct scsi_bd *)qedi->bdq_pbl;
+ pbl += (qedi->bdq_prod_idx % qedi->rq_num_entries);
+ pbl->address.hi = cpu_to_le32(QEDI_U64_HI(qedi->bdq[idx].buf_dma));
+ pbl->address.lo = cpu_to_le32(QEDI_U64_LO(qedi->bdq[idx].buf_dma));
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "pbl [0x%p] pbl->address hi [0x%llx] lo [0x%llx] idx [%d]\n",
+ pbl, pbl->address.hi, pbl->address.lo, idx);
+ pbl->opaque.hi = 0;
+ pbl->opaque.lo = cpu_to_le32(QEDI_U64_LO(idx));
+
+ /* Increment producer to let f/w know we've handled the frame */
+ qedi->bdq_prod_idx += count;
+
+ writew(qedi->bdq_prod_idx, qedi->bdq_primary_prod);
+ tmp = readw(qedi->bdq_primary_prod);
+
+ writew(qedi->bdq_prod_idx, qedi->bdq_secondary_prod);
+ tmp = readw(qedi->bdq_secondary_prod);
+}
+
+static void qedi_unsol_pdu_adjust_bdq(struct qedi_ctx *qedi,
+ struct iscsi_cqe_unsolicited *cqe,
+ u32 pdu_len, u32 num_bdqs,
+ char *bdq_data)
+{
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "num_bdqs [%d]\n", num_bdqs);
+
+ qedi_get_rq_bdq_buf(qedi, cqe, bdq_data, pdu_len);
+ qedi_put_rq_bdq_buf(qedi, cqe, (num_bdqs + 1));
+}
+
+static int qedi_process_nopin_mesg(struct qedi_ctx *qedi,
+ union iscsi_cqe *cqe,
+ struct iscsi_task *task,
+ struct qedi_conn *qedi_conn, u16 que_idx)
+{
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+ struct iscsi_nop_in_hdr *cqe_nop_in;
+ struct iscsi_nopin *hdr;
+ struct qedi_cmd *cmd;
+ int tgt_async_nop = 0;
+ u32 lun[2];
+ u32 pdu_len, num_bdqs;
+ char bdq_data[QEDI_BDQ_BUF_SIZE];
+ unsigned long flags;
+
+ spin_lock_bh(&session->back_lock);
+ cqe_nop_in = &cqe->cqe_common.iscsi_hdr.nop_in;
+
+ pdu_len = cqe_nop_in->hdr_second_dword &
+ ISCSI_NOP_IN_HDR_DATA_SEG_LEN_MASK;
+ num_bdqs = pdu_len / QEDI_BDQ_BUF_SIZE;
+
+ hdr = (struct iscsi_nopin *)&qedi_conn->gen_pdu.resp_hdr;
+ memset(hdr, 0, sizeof(struct iscsi_hdr));
+ hdr->opcode = cqe_nop_in->opcode;
+ hdr->max_cmdsn = cpu_to_be32(cqe_nop_in->max_cmd_sn);
+ hdr->exp_cmdsn = cpu_to_be32(cqe_nop_in->exp_cmd_sn);
+ hdr->statsn = cpu_to_be32(cqe_nop_in->stat_sn);
+ hdr->ttt = cpu_to_be32(cqe_nop_in->ttt);
+
+ if (cqe->cqe_common.cqe_type == ISCSI_CQE_TYPE_UNSOLICITED) {
+ spin_lock_irqsave(&qedi->hba_lock, flags);
+ qedi_unsol_pdu_adjust_bdq(qedi, &cqe->cqe_unsolicited,
+ pdu_len, num_bdqs, bdq_data);
+ hdr->itt = RESERVED_ITT;
+ tgt_async_nop = 1;
+ spin_unlock_irqrestore(&qedi->hba_lock, flags);
+ goto done;
+ }
+
+ /* Response to one of our nop-outs */
+ if (task) {
+ cmd = task->dd_data;
+ hdr->flags = ISCSI_FLAG_CMD_FINAL;
+ hdr->itt = build_itt(cqe->cqe_solicited.itid,
+ conn->session->age);
+ lun[0] = 0xffffffff;
+ lun[1] = 0xffffffff;
+ memcpy(&hdr->lun, lun, sizeof(struct scsi_lun));
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_TID,
+ "Freeing tid=0x%x for cid=0x%x\n",
+ cmd->task_id, qedi_conn->iscsi_conn_id);
+ cmd->state = RESPONSE_RECEIVED;
+ spin_lock(&qedi_conn->list_lock);
+ if (likely(cmd->io_cmd_in_list)) {
+ cmd->io_cmd_in_list = false;
+ list_del_init(&cmd->io_cmd);
+ qedi_conn->active_cmd_count--;
+ }
+
+ spin_unlock(&qedi_conn->list_lock);
+ qedi_clear_task_idx(qedi, cmd->task_id);
+ }
+
+done:
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, bdq_data, pdu_len);
+
+ spin_unlock_bh(&session->back_lock);
+ return tgt_async_nop;
+}
+
+static void qedi_process_async_mesg(struct qedi_ctx *qedi,
+ union iscsi_cqe *cqe,
+ struct iscsi_task *task,
+ struct qedi_conn *qedi_conn,
+ u16 que_idx)
+{
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+ struct iscsi_async_msg_hdr *cqe_async_msg;
+ struct iscsi_async *resp_hdr;
+ u32 lun[2];
+ u32 pdu_len, num_bdqs;
+ char bdq_data[QEDI_BDQ_BUF_SIZE];
+ unsigned long flags;
+
+ spin_lock_bh(&session->back_lock);
+
+ cqe_async_msg = &cqe->cqe_common.iscsi_hdr.async_msg;
+ pdu_len = cqe_async_msg->hdr_second_dword &
+ ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_MASK;
+ num_bdqs = pdu_len / QEDI_BDQ_BUF_SIZE;
+
+ if (cqe->cqe_common.cqe_type == ISCSI_CQE_TYPE_UNSOLICITED) {
+ spin_lock_irqsave(&qedi->hba_lock, flags);
+ qedi_unsol_pdu_adjust_bdq(qedi, &cqe->cqe_unsolicited,
+ pdu_len, num_bdqs, bdq_data);
+ spin_unlock_irqrestore(&qedi->hba_lock, flags);
+ }
+
+ resp_hdr = (struct iscsi_async *)&qedi_conn->gen_pdu.resp_hdr;
+ memset(resp_hdr, 0, sizeof(struct iscsi_hdr));
+ resp_hdr->opcode = cqe_async_msg->opcode;
+ resp_hdr->flags = 0x80;
+
+ lun[0] = cpu_to_be32(cqe_async_msg->lun.lo);
+ lun[1] = cpu_to_be32(cqe_async_msg->lun.hi);
+ memcpy(&resp_hdr->lun, lun, sizeof(struct scsi_lun));
+ resp_hdr->exp_cmdsn = cpu_to_be32(cqe_async_msg->exp_cmd_sn);
+ resp_hdr->max_cmdsn = cpu_to_be32(cqe_async_msg->max_cmd_sn);
+ resp_hdr->statsn = cpu_to_be32(cqe_async_msg->stat_sn);
+
+ resp_hdr->async_event = cqe_async_msg->async_event;
+ resp_hdr->async_vcode = cqe_async_msg->async_vcode;
+
+ resp_hdr->param1 = cpu_to_be16(cqe_async_msg->param1_rsrv);
+ resp_hdr->param2 = cpu_to_be16(cqe_async_msg->param2_rsrv);
+ resp_hdr->param3 = cpu_to_be16(cqe_async_msg->param3_rsrv);
+
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, bdq_data,
+ pdu_len);
+
+ spin_unlock_bh(&session->back_lock);
+}
+
+static void qedi_process_reject_mesg(struct qedi_ctx *qedi,
+ union iscsi_cqe *cqe,
+ struct iscsi_task *task,
+ struct qedi_conn *qedi_conn,
+ uint16_t que_idx)
+{
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+ struct iscsi_reject_hdr *cqe_reject;
+ struct iscsi_reject *hdr;
+ u32 pld_len, num_bdqs;
+ unsigned long flags;
+
+ spin_lock_bh(&session->back_lock);
+ cqe_reject = &cqe->cqe_common.iscsi_hdr.reject;
+ pld_len = cqe_reject->hdr_second_dword &
+ ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK;
+ num_bdqs = pld_len / QEDI_BDQ_BUF_SIZE;
+
+ if (cqe->cqe_common.cqe_type == ISCSI_CQE_TYPE_UNSOLICITED) {
+ spin_lock_irqsave(&qedi->hba_lock, flags);
+ qedi_unsol_pdu_adjust_bdq(qedi, &cqe->cqe_unsolicited,
+ pld_len, num_bdqs, conn->data);
+ spin_unlock_irqrestore(&qedi->hba_lock, flags);
+ }
+ hdr = (struct iscsi_reject *)&qedi_conn->gen_pdu.resp_hdr;
+ memset(hdr, 0, sizeof(struct iscsi_hdr));
+ hdr->opcode = cqe_reject->opcode;
+ hdr->reason = cqe_reject->hdr_reason;
+ hdr->flags = cqe_reject->hdr_flags;
+ hton24(hdr->dlength, (cqe_reject->hdr_second_dword &
+ ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK));
+ hdr->max_cmdsn = cpu_to_be32(cqe_reject->max_cmd_sn);
+ hdr->exp_cmdsn = cpu_to_be32(cqe_reject->exp_cmd_sn);
+ hdr->statsn = cpu_to_be32(cqe_reject->stat_sn);
+ hdr->ffffffff = cpu_to_be32(0xffffffff);
+
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr,
+ conn->data, pld_len);
+ spin_unlock_bh(&session->back_lock);
+}
+
+static void qedi_mtask_completion(struct qedi_ctx *qedi,
+ union iscsi_cqe *cqe,
+ struct iscsi_task *task,
+ struct qedi_conn *conn, uint16_t que_idx)
+{
+ struct iscsi_conn *iscsi_conn;
+ u32 hdr_opcode;
+
+ hdr_opcode = cqe->cqe_common.iscsi_hdr.common.hdr_first_byte;
+ iscsi_conn = conn->cls_conn->dd_data;
+
+ switch (hdr_opcode) {
+ case ISCSI_OPCODE_LOGIN_RESPONSE:
+ qedi_process_login_resp(qedi, cqe, task, conn);
+ break;
+ case ISCSI_OPCODE_TEXT_RESPONSE:
+ qedi_process_text_resp(qedi, cqe, task, conn);
+ break;
+ case ISCSI_OPCODE_LOGOUT_RESPONSE:
+ qedi_process_logout_resp(qedi, cqe, task, conn);
+ break;
+ case ISCSI_OPCODE_NOP_IN:
+ qedi_process_nopin_mesg(qedi, cqe, task, conn, que_idx);
+ break;
+ default:
+ QEDI_ERR(&qedi->dbg_ctx, "unknown opcode\n");
+ }
+}
+
+static void qedi_process_nopin_local_cmpl(struct qedi_ctx *qedi,
+ struct iscsi_cqe_solicited *cqe,
+ struct iscsi_task *task,
+ struct qedi_conn *qedi_conn)
+{
+ struct iscsi_conn *conn = qedi_conn->cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+ struct qedi_cmd *cmd = task->dd_data;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_UNSOL,
+ "itid=0x%x, cmd task id=0x%x\n",
+ cqe->itid, cmd->task_id);
+
+ cmd->state = RESPONSE_RECEIVED;
+ qedi_clear_task_idx(qedi, cmd->task_id);
+
+ spin_lock_bh(&session->back_lock);
+ __iscsi_put_task(task);
+ spin_unlock_bh(&session->back_lock);
+}
+
+void qedi_fp_process_cqes(struct qedi_work *work)
+{
+ struct qedi_ctx *qedi = work->qedi;
+ union iscsi_cqe *cqe = &work->cqe;
+ struct iscsi_task *task = NULL;
+ struct iscsi_nopout *nopout_hdr;
+ struct qedi_conn *q_conn;
+ struct iscsi_conn *conn;
+ struct qedi_cmd *qedi_cmd;
+ u32 comp_type;
+ u32 iscsi_cid;
+ u32 hdr_opcode;
+ u16 que_idx = work->que_idx;
+ u8 cqe_err_bits = 0;
+
+ comp_type = cqe->cqe_common.cqe_type;
+ hdr_opcode = cqe->cqe_common.iscsi_hdr.common.hdr_first_byte;
+ cqe_err_bits =
+ cqe->cqe_common.error_bitmap.error_bits.cqe_error_status_bits;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "fw_cid=0x%x, cqe type=0x%x, opcode=0x%x\n",
+ cqe->cqe_common.conn_id, comp_type, hdr_opcode);
+
+ if (comp_type >= MAX_ISCSI_CQES_TYPE) {
+ QEDI_WARN(&qedi->dbg_ctx, "Invalid CqE type\n");
+ return;
+ }
+
+ iscsi_cid = cqe->cqe_common.conn_id;
+ q_conn = qedi->cid_que.conn_cid_tbl[iscsi_cid];
+ if (!q_conn) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "Session no longer exists for cid=0x%x!!\n",
+ iscsi_cid);
+ return;
+ }
+
+ conn = q_conn->cls_conn->dd_data;
+
+ if (unlikely(cqe_err_bits &&
+ GET_FIELD(cqe_err_bits,
+ CQE_ERROR_BITMAP_DATA_DIGEST_ERR))) {
+ iscsi_conn_failure(conn, ISCSI_ERR_DATA_DGST);
+ return;
+ }
+
+ switch (comp_type) {
+ case ISCSI_CQE_TYPE_SOLICITED:
+ case ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE:
+ qedi_cmd = container_of(work, struct qedi_cmd, cqe_work);
+ task = qedi_cmd->task;
+ if (!task) {
+ QEDI_WARN(&qedi->dbg_ctx, "task is NULL\n");
+ return;
+ }
+
+ /* Process NOPIN local completion */
+ nopout_hdr = (struct iscsi_nopout *)task->hdr;
+ if ((nopout_hdr->itt == RESERVED_ITT) &&
+ (cqe->cqe_solicited.itid != (u16)RESERVED_ITT)) {
+ qedi_process_nopin_local_cmpl(qedi, &cqe->cqe_solicited,
+ task, q_conn);
+ } else {
+ cqe->cqe_solicited.itid =
+ qedi_get_itt(cqe->cqe_solicited);
+ /* Process other solicited responses */
+ qedi_mtask_completion(qedi, cqe, task, q_conn, que_idx);
+ }
+ break;
+ case ISCSI_CQE_TYPE_UNSOLICITED:
+ switch (hdr_opcode) {
+ case ISCSI_OPCODE_NOP_IN:
+ qedi_process_nopin_mesg(qedi, cqe, task, q_conn,
+ que_idx);
+ break;
+ case ISCSI_OPCODE_ASYNC_MSG:
+ qedi_process_async_mesg(qedi, cqe, task, q_conn,
+ que_idx);
+ break;
+ case ISCSI_OPCODE_REJECT:
+ qedi_process_reject_mesg(qedi, cqe, task, q_conn,
+ que_idx);
+ break;
+ }
+ goto exit_fp_process;
+ default:
+ QEDI_ERR(&qedi->dbg_ctx, "Error cqe.\n");
+ break;
+ }
+
+exit_fp_process:
+ return;
+}
+
+static void qedi_add_to_sq(struct qedi_conn *qedi_conn, struct iscsi_task *task,
+ u16 tid, uint16_t ptu_invalidate, int is_cleanup)
+{
+ struct iscsi_wqe *wqe;
+ struct iscsi_wqe_field *cont_field;
+ struct qedi_endpoint *ep;
+ struct scsi_cmnd *sc = task->sc;
+ struct iscsi_login_req *login_hdr;
+ struct qedi_cmd *cmd = task->dd_data;
+
+ login_hdr = (struct iscsi_login_req *)task->hdr;
+ ep = qedi_conn->ep;
+ wqe = &ep->sq[ep->sq_prod_idx];
+
+ memset(wqe, 0, sizeof(*wqe));
+
+ ep->sq_prod_idx++;
+ ep->fw_sq_prod_idx++;
+ if (ep->sq_prod_idx == QEDI_SQ_SIZE)
+ ep->sq_prod_idx = 0;
+
+ if (is_cleanup) {
+ SET_FIELD(wqe->flags, ISCSI_WQE_WQE_TYPE,
+ ISCSI_WQE_TYPE_TASK_CLEANUP);
+ wqe->task_id = tid;
+ return;
+ }
+
+ if (ptu_invalidate) {
+ SET_FIELD(wqe->flags, ISCSI_WQE_PTU_INVALIDATE,
+ ISCSI_WQE_SET_PTU_INVALIDATE);
+ }
+
+ cont_field = &wqe->cont_prevtid_union.cont_field;
+
+ switch (task->hdr->opcode & ISCSI_OPCODE_MASK) {
+ case ISCSI_OP_LOGIN:
+ case ISCSI_OP_TEXT:
+ SET_FIELD(wqe->flags, ISCSI_WQE_WQE_TYPE,
+ ISCSI_WQE_TYPE_MIDDLE_PATH);
+ SET_FIELD(wqe->flags, ISCSI_WQE_NUM_FAST_SGES,
+ 1);
+ cont_field->contlen_cdbsize_field = ntoh24(login_hdr->dlength);
+ break;
+ case ISCSI_OP_LOGOUT:
+ case ISCSI_OP_NOOP_OUT:
+ case ISCSI_OP_SCSI_TMFUNC:
+ SET_FIELD(wqe->flags, ISCSI_WQE_WQE_TYPE,
+ ISCSI_WQE_TYPE_NORMAL);
+ break;
+ default:
+ if (!sc)
+ break;
+
+ SET_FIELD(wqe->flags, ISCSI_WQE_WQE_TYPE,
+ ISCSI_WQE_TYPE_NORMAL);
+ cont_field->contlen_cdbsize_field =
+ (sc->sc_data_direction == DMA_TO_DEVICE) ?
+ scsi_bufflen(sc) : 0;
+ if (cmd->use_slowpath)
+ SET_FIELD(wqe->flags, ISCSI_WQE_NUM_FAST_SGES, 0);
+ else
+ SET_FIELD(wqe->flags, ISCSI_WQE_NUM_FAST_SGES,
+ (sc->sc_data_direction ==
+ DMA_TO_DEVICE) ?
+ min((u16)QEDI_FAST_SGE_COUNT,
+ (u16)cmd->io_tbl.sge_valid) : 0);
+ break;
+ }
+
+ wqe->task_id = tid;
+ /* Make sure SQ data is coherent */
+ wmb();
+}
+
+static void qedi_ring_doorbell(struct qedi_conn *qedi_conn)
+{
+ struct iscsi_db_data dbell = { 0 };
+
+ dbell.agg_flags = 0;
+
+ dbell.params |= DB_DEST_XCM << ISCSI_DB_DATA_DEST_SHIFT;
+ dbell.params |= DB_AGG_CMD_SET << ISCSI_DB_DATA_AGG_CMD_SHIFT;
+ dbell.params |=
+ DQ_XCM_ISCSI_SQ_PROD_CMD << ISCSI_DB_DATA_AGG_VAL_SEL_SHIFT;
+
+ dbell.sq_prod = qedi_conn->ep->fw_sq_prod_idx;
+ writel(*(u32 *)&dbell, qedi_conn->ep->p_doorbell);
+
+ /* Make sure fw write idx is coherent, and include both memory barriers
+ * as a failsafe as for some architectures the call is the same but on
+ * others they are two different assembly operations.
+ */
+ wmb();
+ mmiowb();
+ QEDI_INFO(&qedi_conn->qedi->dbg_ctx, QEDI_LOG_MP_REQ,
+ "prod_idx=0x%x, fw_prod_idx=0x%x, cid=0x%x\n",
+ qedi_conn->ep->sq_prod_idx, qedi_conn->ep->fw_sq_prod_idx,
+ qedi_conn->iscsi_conn_id);
+}
+
+int qedi_send_iscsi_login(struct qedi_conn *qedi_conn,
+ struct iscsi_task *task)
+{
+ struct qedi_ctx *qedi = qedi_conn->qedi;
+ struct iscsi_task_context *fw_task_ctx;
+ struct iscsi_login_req *login_hdr;
+ struct iscsi_login_req_hdr *fw_login_req = NULL;
+ struct iscsi_cached_sge_ctx *cached_sge = NULL;
+ struct iscsi_sge *single_sge = NULL;
+ struct iscsi_sge *req_sge = NULL;
+ struct iscsi_sge *resp_sge = NULL;
+ struct qedi_cmd *qedi_cmd;
+ s16 ptu_invalidate = 0;
+ s16 tid = 0;
+
+ req_sge = (struct iscsi_sge *)qedi_conn->gen_pdu.req_bd_tbl;
+ resp_sge = (struct iscsi_sge *)qedi_conn->gen_pdu.resp_bd_tbl;
+ qedi_cmd = (struct qedi_cmd *)task->dd_data;
+ login_hdr = (struct iscsi_login_req *)task->hdr;
+
+ tid = qedi_get_task_idx(qedi);
+ if (tid == -1)
+ return -ENOMEM;
+
+ fw_task_ctx = qedi_get_task_mem(&qedi->tasks, tid);
+ memset(fw_task_ctx, 0, sizeof(struct iscsi_task_context));
+
+ qedi_cmd->task_id = tid;
+
+ /* Ystorm context */
+ fw_login_req = &fw_task_ctx->ystorm_st_context.pdu_hdr.login_req;
+ fw_login_req->opcode = login_hdr->opcode;
+ fw_login_req->version_min = login_hdr->min_version;
+ fw_login_req->version_max = login_hdr->max_version;
+ fw_login_req->flags_attr = login_hdr->flags;
+ fw_login_req->isid_tabc = *((u16 *)login_hdr->isid + 2);
+ fw_login_req->isid_d = *((u32 *)login_hdr->isid);
+ fw_login_req->tsih = login_hdr->tsih;
+ qedi_update_itt_map(qedi, tid, task->itt, qedi_cmd);
+ fw_login_req->itt = qedi_set_itt(tid, get_itt(task->itt));
+ fw_login_req->cid = qedi_conn->iscsi_conn_id;
+ fw_login_req->cmd_sn = be32_to_cpu(login_hdr->cmdsn);
+ fw_login_req->exp_stat_sn = be32_to_cpu(login_hdr->exp_statsn);
+ fw_login_req->exp_stat_sn = 0;
+
+ if (qedi->tid_reuse_count[tid] == QEDI_MAX_TASK_NUM) {
+ ptu_invalidate = 1;
+ qedi->tid_reuse_count[tid] = 0;
+ }
+
+ fw_task_ctx->ystorm_st_context.state.reuse_count =
+ qedi->tid_reuse_count[tid];
+ fw_task_ctx->mstorm_st_context.reuse_count =
+ qedi->tid_reuse_count[tid]++;
+ cached_sge =
+ &fw_task_ctx->ystorm_st_context.state.sgl_ctx_union.cached_sge;
+ cached_sge->sge.sge_len = req_sge->sge_len;
+ cached_sge->sge.sge_addr.lo = (u32)(qedi_conn->gen_pdu.req_dma_addr);
+ cached_sge->sge.sge_addr.hi =
+ (u32)((u64)qedi_conn->gen_pdu.req_dma_addr >> 32);
+
+ /* Mstorm context */
+ single_sge = &fw_task_ctx->mstorm_st_context.sgl_union.single_sge;
+ fw_task_ctx->mstorm_st_context.task_type = 0x2;
+ fw_task_ctx->mstorm_ag_context.task_cid = (u16)qedi_conn->iscsi_conn_id;
+ single_sge->sge_addr.lo = resp_sge->sge_addr.lo;
+ single_sge->sge_addr.hi = resp_sge->sge_addr.hi;
+ single_sge->sge_len = resp_sge->sge_len;
+
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SINGLE_SGE, 1);
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SLOW_IO, 0);
+ fw_task_ctx->mstorm_st_context.sgl_size = 1;
+ fw_task_ctx->mstorm_st_context.rem_task_size = resp_sge->sge_len;
+
+ /* Ustorm context */
+ fw_task_ctx->ustorm_st_context.rem_rcv_len = resp_sge->sge_len;
+ fw_task_ctx->ustorm_st_context.exp_data_transfer_len =
+ ntoh24(login_hdr->dlength);
+ fw_task_ctx->ustorm_st_context.exp_data_sn = 0;
+ fw_task_ctx->ustorm_st_context.cq_rss_number = 0;
+ fw_task_ctx->ustorm_st_context.task_type = 0x2;
+ fw_task_ctx->ustorm_ag_context.icid = (u16)qedi_conn->iscsi_conn_id;
+ fw_task_ctx->ustorm_ag_context.exp_data_acked =
+ ntoh24(login_hdr->dlength);
+ SET_FIELD(fw_task_ctx->ustorm_ag_context.flags1,
+ USTORM_ISCSI_TASK_AG_CTX_R2T2RECV, 1);
+ SET_FIELD(fw_task_ctx->ustorm_st_context.flags,
+ USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP, 0);
+
+ spin_lock(&qedi_conn->list_lock);
+ list_add_tail(&qedi_cmd->io_cmd, &qedi_conn->active_cmd_list);
+ qedi_cmd->io_cmd_in_list = true;
+ qedi_conn->active_cmd_count++;
+ spin_unlock(&qedi_conn->list_lock);
+
+ qedi_add_to_sq(qedi_conn, task, tid, ptu_invalidate, false);
+ qedi_ring_doorbell(qedi_conn);
+ return 0;
+}
+
+int qedi_send_iscsi_logout(struct qedi_conn *qedi_conn,
+ struct iscsi_task *task)
+{
+ struct qedi_ctx *qedi = qedi_conn->qedi;
+ struct iscsi_logout_req_hdr *fw_logout_req = NULL;
+ struct iscsi_task_context *fw_task_ctx = NULL;
+ struct iscsi_logout *logout_hdr = NULL;
+ struct qedi_cmd *qedi_cmd = NULL;
+ s16 tid = 0;
+ s16 ptu_invalidate = 0;
+
+ qedi_cmd = (struct qedi_cmd *)task->dd_data;
+ logout_hdr = (struct iscsi_logout *)task->hdr;
+
+ tid = qedi_get_task_idx(qedi);
+ if (tid == -1)
+ return -ENOMEM;
+
+ fw_task_ctx = qedi_get_task_mem(&qedi->tasks, tid);
+
+ memset(fw_task_ctx, 0, sizeof(struct iscsi_task_context));
+ qedi_cmd->task_id = tid;
+
+ /* Ystorm context */
+ fw_logout_req = &fw_task_ctx->ystorm_st_context.pdu_hdr.logout_req;
+ fw_logout_req->opcode = ISCSI_OPCODE_LOGOUT_REQUEST;
+ fw_logout_req->reason_code = 0x80 | logout_hdr->flags;
+ qedi_update_itt_map(qedi, tid, task->itt, qedi_cmd);
+ fw_logout_req->itt = qedi_set_itt(tid, get_itt(task->itt));
+ fw_logout_req->exp_stat_sn = be32_to_cpu(logout_hdr->exp_statsn);
+ fw_logout_req->cmd_sn = be32_to_cpu(logout_hdr->cmdsn);
+
+ if (qedi->tid_reuse_count[tid] == QEDI_MAX_TASK_NUM) {
+ ptu_invalidate = 1;
+ qedi->tid_reuse_count[tid] = 0;
+ }
+ fw_task_ctx->ystorm_st_context.state.reuse_count =
+ qedi->tid_reuse_count[tid];
+ fw_task_ctx->mstorm_st_context.reuse_count =
+ qedi->tid_reuse_count[tid]++;
+ fw_logout_req->cid = qedi_conn->iscsi_conn_id;
+ fw_task_ctx->ystorm_st_context.state.buffer_offset[0] = 0;
+
+ /* Mstorm context */
+ fw_task_ctx->mstorm_st_context.task_type = ISCSI_TASK_TYPE_MIDPATH;
+ fw_task_ctx->mstorm_ag_context.task_cid = (u16)qedi_conn->iscsi_conn_id;
+
+ /* Ustorm context */
+ fw_task_ctx->ustorm_st_context.rem_rcv_len = 0;
+ fw_task_ctx->ustorm_st_context.exp_data_transfer_len = 0;
+ fw_task_ctx->ustorm_st_context.exp_data_sn = 0;
+ fw_task_ctx->ustorm_st_context.task_type = ISCSI_TASK_TYPE_MIDPATH;
+ fw_task_ctx->ustorm_st_context.cq_rss_number = 0;
+
+ SET_FIELD(fw_task_ctx->ustorm_st_context.flags,
+ USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP, 0);
+ SET_FIELD(fw_task_ctx->ustorm_st_context.reg1.reg1_map,
+ ISCSI_REG1_NUM_FAST_SGES, 0);
+
+ fw_task_ctx->ustorm_ag_context.icid = (u16)qedi_conn->iscsi_conn_id;
+ SET_FIELD(fw_task_ctx->ustorm_ag_context.flags1,
+ USTORM_ISCSI_TASK_AG_CTX_R2T2RECV, 1);
+
+ spin_lock(&qedi_conn->list_lock);
+ list_add_tail(&qedi_cmd->io_cmd, &qedi_conn->active_cmd_list);
+ qedi_cmd->io_cmd_in_list = true;
+ qedi_conn->active_cmd_count++;
+ spin_unlock(&qedi_conn->list_lock);
+
+ qedi_add_to_sq(qedi_conn, task, tid, ptu_invalidate, false);
+ qedi_ring_doorbell(qedi_conn);
+
+ return 0;
+}
+
+int qedi_send_iscsi_text(struct qedi_conn *qedi_conn,
+ struct iscsi_task *task)
+{
+ struct qedi_ctx *qedi = qedi_conn->qedi;
+ struct iscsi_task_context *fw_task_ctx;
+ struct iscsi_text_request_hdr *fw_text_request;
+ struct iscsi_cached_sge_ctx *cached_sge;
+ struct iscsi_sge *single_sge;
+ struct qedi_cmd *qedi_cmd;
+ /* For 6.5 hdr iscsi_hdr */
+ struct iscsi_text *text_hdr;
+ struct iscsi_sge *req_sge;
+ struct iscsi_sge *resp_sge;
+ s16 ptu_invalidate = 0;
+ s16 tid = 0;
+
+ req_sge = (struct iscsi_sge *)qedi_conn->gen_pdu.req_bd_tbl;
+ resp_sge = (struct iscsi_sge *)qedi_conn->gen_pdu.resp_bd_tbl;
+ qedi_cmd = (struct qedi_cmd *)task->dd_data;
+ text_hdr = (struct iscsi_text *)task->hdr;
+
+ tid = qedi_get_task_idx(qedi);
+ if (tid == -1)
+ return -ENOMEM;
+
+ fw_task_ctx = qedi_get_task_mem(&qedi->tasks, tid);
+ memset(fw_task_ctx, 0, sizeof(struct iscsi_task_context));
+
+ qedi_cmd->task_id = tid;
+
+ /* Ystorm context */
+ fw_text_request =
+ &fw_task_ctx->ystorm_st_context.pdu_hdr.text_request;
+ fw_text_request->opcode = text_hdr->opcode;
+ fw_text_request->flags_attr = text_hdr->flags;
+
+ qedi_update_itt_map(qedi, tid, task->itt, qedi_cmd);
+ fw_text_request->itt = qedi_set_itt(tid, get_itt(task->itt));
+ fw_text_request->ttt = text_hdr->ttt;
+ fw_text_request->cmd_sn = be32_to_cpu(text_hdr->cmdsn);
+ fw_text_request->exp_stat_sn = be32_to_cpu(text_hdr->exp_statsn);
+ fw_text_request->hdr_second_dword = ntoh24(text_hdr->dlength);
+
+ if (qedi->tid_reuse_count[tid] == QEDI_MAX_TASK_NUM) {
+ ptu_invalidate = 1;
+ qedi->tid_reuse_count[tid] = 0;
+ }
+ fw_task_ctx->ystorm_st_context.state.reuse_count =
+ qedi->tid_reuse_count[tid];
+ fw_task_ctx->mstorm_st_context.reuse_count =
+ qedi->tid_reuse_count[tid]++;
+
+ cached_sge =
+ &fw_task_ctx->ystorm_st_context.state.sgl_ctx_union.cached_sge;
+ cached_sge->sge.sge_len = req_sge->sge_len;
+ cached_sge->sge.sge_addr.lo = (u32)(qedi_conn->gen_pdu.req_dma_addr);
+ cached_sge->sge.sge_addr.hi =
+ (u32)((u64)qedi_conn->gen_pdu.req_dma_addr >> 32);
+
+ /* Mstorm context */
+ single_sge = &fw_task_ctx->mstorm_st_context.sgl_union.single_sge;
+ fw_task_ctx->mstorm_st_context.task_type = 0x2;
+ fw_task_ctx->mstorm_ag_context.task_cid = (u16)qedi_conn->iscsi_conn_id;
+ single_sge->sge_addr.lo = resp_sge->sge_addr.lo;
+ single_sge->sge_addr.hi = resp_sge->sge_addr.hi;
+ single_sge->sge_len = resp_sge->sge_len;
+
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SINGLE_SGE, 1);
+ SET_FIELD(fw_task_ctx->mstorm_st_context.flags.mflags,
+ ISCSI_MFLAGS_SLOW_IO, 0);
+ fw_task_ctx->mstorm_st_context.sgl_size = 1;
+ fw_task_ctx->mstorm_st_context.rem_task_size = resp_sge->sge_len;
+
+ /* Ustorm context */
+ fw_task_ctx->ustorm_ag_context.exp_data_acked =
+ ntoh24(text_hdr->dlength);
+ fw_task_ctx->ustorm_st_context.rem_rcv_len = resp_sge->sge_len;
+ fw_task_ctx->ustorm_st_context.exp_data_transfer_len =
+ ntoh24(text_hdr->dlength);
+ fw_task_ctx->ustorm_st_context.exp_data_sn =
+ be32_to_cpu(text_hdr->exp_statsn);
+ fw_task_ctx->ustorm_st_context.cq_rss_number = 0;
+ fw_task_ctx->ustorm_st_context.task_type = 0x2;
+ fw_task_ctx->ustorm_ag_context.icid = (u16)qedi_conn->iscsi_conn_id;
+ SET_FIELD(fw_task_ctx->ustorm_ag_context.flags1,
+ USTORM_ISCSI_TASK_AG_CTX_R2T2RECV, 1);
+
+ /* Add command in active command list */
+ spin_lock(&qedi_conn->list_lock);
+ list_add_tail(&qedi_cmd->io_cmd, &qedi_conn->active_cmd_list);
+ qedi_cmd->io_cmd_in_list = true;
+ qedi_conn->active_cmd_count++;
+ spin_unlock(&qedi_conn->list_lock);
+
+ qedi_add_to_sq(qedi_conn, task, tid, ptu_invalidate, false);
+ qedi_ring_doorbell(qedi_conn);
+
+ return 0;
+}
+
+int qedi_send_iscsi_nopout(struct qedi_conn *qedi_conn,
+ struct iscsi_task *task,
+ char *datap, int data_len, int unsol)
+{
+ struct qedi_ctx *qedi = qedi_conn->qedi;
+ struct iscsi_task_context *fw_task_ctx;
+ struct iscsi_nop_out_hdr *fw_nop_out;
+ struct qedi_cmd *qedi_cmd;
+ /* For 6.5 hdr iscsi_hdr */
+ struct iscsi_nopout *nopout_hdr;
+ struct iscsi_cached_sge_ctx *cached_sge;
+ struct iscsi_sge *single_sge;
+ struct iscsi_sge *req_sge;
+ struct iscsi_sge *resp_sge;
+ u32 lun[2];
+ s16 ptu_invalidate = 0;
+ s16 tid = 0;
+
+ req_sge = (struct iscsi_sge *)qedi_conn->gen_pdu.req_bd_tbl;
+ resp_sge = (struct iscsi_sge *)qedi_conn->gen_pdu.resp_bd_tbl;
+ qedi_cmd = (struct qedi_cmd *)task->dd_data;
+ nopout_hdr = (struct iscsi_nopout *)task->hdr;
+
+ tid = qedi_get_task_idx(qedi);
+ if (tid == -1) {
+ QEDI_WARN(&qedi->dbg_ctx, "Invalid tid\n");
+ return -ENOMEM;
+ }
+
+ fw_task_ctx = qedi_get_task_mem(&qedi->tasks, tid);
+
+ memset(fw_task_ctx, 0, sizeof(struct iscsi_task_context));
+ qedi_cmd->task_id = tid;
+
+ /* Ystorm context */
+ fw_nop_out = &fw_task_ctx->ystorm_st_context.pdu_hdr.nop_out;
+ SET_FIELD(fw_nop_out->flags_attr, ISCSI_NOP_OUT_HDR_CONST1, 1);
+ SET_FIELD(fw_nop_out->flags_attr, ISCSI_NOP_OUT_HDR_RSRV, 0);
+
+ memcpy(lun, &nopout_hdr->lun, sizeof(struct scsi_lun));
+ fw_nop_out->lun.lo = be32_to_cpu(lun[0]);
+ fw_nop_out->lun.hi = be32_to_cpu(lun[1]);
+
+ qedi_update_itt_map(qedi, tid, task->itt, qedi_cmd);
+
+ if (nopout_hdr->ttt != ISCSI_TTT_ALL_ONES) {
+ fw_nop_out->itt = be32_to_cpu(nopout_hdr->itt);
+ fw_nop_out->ttt = be32_to_cpu(nopout_hdr->ttt);
+ fw_task_ctx->ystorm_st_context.state.buffer_offset[0] = 0;
+ fw_task_ctx->ystorm_st_context.state.local_comp = 1;
+ SET_FIELD(fw_task_ctx->ustorm_st_context.flags,
+ USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP, 1);
+ } else {
+ fw_nop_out->itt = qedi_set_itt(tid, get_itt(task->itt));
+ fw_nop_out->ttt = ISCSI_TTT_ALL_ONES;
+ fw_task_ctx->ystorm_st_context.state.buffer_offset[0] = 0;
+
+ spin_lock(&qedi_conn->list_lock);
+ list_add_tail(&qedi_cmd->io_cmd, &qedi_conn->active_cmd_list);
+ qedi_cmd->io_cmd_in_list = true;
+ qedi_conn->active_cmd_count++;
+ spin_unlock(&qedi_conn->list_lock);
+ }
+
+ fw_nop_out->opcode = ISCSI_OPCODE_NOP_OUT;
+ fw_nop_out->cmd_sn = be32_to_cpu(nopout_hdr->cmdsn);
+ fw_nop_out->exp_stat_sn = be32_to_cpu(nopout_hdr->exp_statsn);
+
+ cached_sge =
+ &fw_task_ctx->ystorm_st_context.state.sgl_ctx_union.cached_sge;
+ cached_sge->sge.sge_len = req_sge->sge_len;
+ cached_sge->sge.sge_addr.lo = (u32)(qedi_conn->gen_pdu.req_dma_addr);
+ cached_sge->sge.sge_addr.hi =
+ (u32)((u64)qedi_conn->gen_pdu.req_dma_addr >> 32);
+
+ /* Mstorm context */
+ fw_task_ctx->mstorm_st_context.task_type = ISCSI_TASK_TYPE_MIDPATH;
+ fw_task_ctx->mstorm_ag_context.task_cid = (u16)qedi_conn->iscsi_conn_id;
+
+ single_sge = &fw_task_ctx->mstorm_st_context.sgl_union.single_sge;
+ single_sge->sge_addr.lo = resp_sge->sge_addr.lo;
+ single_sge->sge_addr.hi = resp_sge->sge_addr.hi;
+ single_sge->sge_len = resp_sge->sge_len;
+ fw_task_ctx->mstorm_st_context.rem_task_size = resp_sge->sge_len;
+
+ if (qedi->tid_reuse_count[tid] == QEDI_MAX_TASK_NUM) {
+ ptu_invalidate = 1;
+ qedi->tid_reuse_count[tid] = 0;
+ }
+ fw_task_ctx->ystorm_st_context.state.reuse_count =
+ qedi->tid_reuse_count[tid];
+ fw_task_ctx->mstorm_st_context.reuse_count =
+ qedi->tid_reuse_count[tid]++;
+ /* Ustorm context */
+ fw_task_ctx->ustorm_st_context.rem_rcv_len = resp_sge->sge_len;
+ fw_task_ctx->ustorm_st_context.exp_data_transfer_len = data_len;
+ fw_task_ctx->ustorm_st_context.exp_data_sn = 0;
+ fw_task_ctx->ustorm_st_context.task_type = ISCSI_TASK_TYPE_MIDPATH;
+ fw_task_ctx->ustorm_st_context.cq_rss_number = 0;
+
+ SET_FIELD(fw_task_ctx->ustorm_st_context.reg1.reg1_map,
+ ISCSI_REG1_NUM_FAST_SGES, 0);
+
+ fw_task_ctx->ustorm_ag_context.icid = (u16)qedi_conn->iscsi_conn_id;
+ SET_FIELD(fw_task_ctx->ustorm_ag_context.flags1,
+ USTORM_ISCSI_TASK_AG_CTX_R2T2RECV, 1);
+
+ fw_task_ctx->ustorm_st_context.lun.lo = be32_to_cpu(lun[0]);
+ fw_task_ctx->ustorm_st_context.lun.hi = be32_to_cpu(lun[1]);
+
+ qedi_add_to_sq(qedi_conn, task, tid, ptu_invalidate, false);
+ qedi_ring_doorbell(qedi_conn);
+ return 0;
+}
diff --git a/drivers/scsi/qedi/qedi_gbl.h b/drivers/scsi/qedi/qedi_gbl.h
new file mode 100644
index 0000000..3af8bd7
--- /dev/null
+++ b/drivers/scsi/qedi/qedi_gbl.h
@@ -0,0 +1,67 @@
+/*
+ * QLogic iSCSI Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QEDI_GBL_H_
+#define _QEDI_GBL_H_
+
+#include "qedi_iscsi.h"
+
+extern uint io_tracing;
+extern int do_not_recover;
+extern struct scsi_host_template qedi_host_template;
+extern struct iscsi_transport qedi_iscsi_transport;
+extern const struct qed_iscsi_ops *qedi_ops;
+extern struct qedi_debugfs_ops qedi_debugfs_ops;
+extern const struct file_operations qedi_dbg_fops;
+extern struct device_attribute *qedi_shost_attrs[];
+
+int qedi_alloc_sq(struct qedi_ctx *qedi, struct qedi_endpoint *ep);
+void qedi_free_sq(struct qedi_ctx *qedi, struct qedi_endpoint *ep);
+
+int qedi_send_iscsi_login(struct qedi_conn *qedi_conn,
+ struct iscsi_task *task);
+int qedi_send_iscsi_logout(struct qedi_conn *qedi_conn,
+ struct iscsi_task *task);
+int qedi_send_iscsi_text(struct qedi_conn *qedi_conn,
+ struct iscsi_task *task);
+int qedi_send_iscsi_nopout(struct qedi_conn *qedi_conn,
+ struct iscsi_task *task,
+ char *datap, int data_len, int unsol);
+int qedi_get_task_idx(struct qedi_ctx *qedi);
+void qedi_clear_task_idx(struct qedi_ctx *qedi, int idx);
+int qedi_iscsi_cleanup_task(struct iscsi_task *task,
+ bool mark_cmd_node_deleted);
+void qedi_iscsi_unmap_sg_list(struct qedi_cmd *cmd);
+void qedi_update_itt_map(struct qedi_ctx *qedi, u32 tid, u32 proto_itt,
+ struct qedi_cmd *qedi_cmd);
+void qedi_get_proto_itt(struct qedi_ctx *qedi, u32 tid, u32 *proto_itt);
+void qedi_get_task_tid(struct qedi_ctx *qedi, u32 itt, int16_t *tid);
+void qedi_process_iscsi_error(struct qedi_endpoint *ep,
+ struct async_data *data);
+void qedi_start_conn_recovery(struct qedi_ctx *qedi,
+ struct qedi_conn *qedi_conn);
+struct qedi_conn *qedi_get_conn_from_id(struct qedi_ctx *qedi, u32 iscsi_cid);
+void qedi_process_tcp_error(struct qedi_endpoint *ep, struct async_data *data);
+void qedi_mark_device_missing(struct iscsi_cls_session *cls_session);
+void qedi_mark_device_available(struct iscsi_cls_session *cls_session);
+void qedi_reset_host_mtu(struct qedi_ctx *qedi, u16 mtu);
+int qedi_recover_all_conns(struct qedi_ctx *qedi);
+void qedi_fp_process_cqes(struct qedi_work *work);
+void qedi_trace_io(struct qedi_ctx *qedi, struct iscsi_task *task,
+ u16 tid, int8_t direction);
+int qedi_alloc_id(struct qedi_portid_tbl *id_tbl, u16 id);
+u16 qedi_alloc_new_id(struct qedi_portid_tbl *id_tbl);
+void qedi_free_id(struct qedi_portid_tbl *id_tbl, u16 id);
+int qedi_create_sysfs_ctx_attr(struct qedi_ctx *qedi);
+void qedi_remove_sysfs_ctx_attr(struct qedi_ctx *qedi);
+void qedi_clearsq(struct qedi_ctx *qedi,
+ struct qedi_conn *qedi_conn,
+ struct iscsi_task *task);
+
+#endif
diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c
new file mode 100644
index 0000000..4a41367
--- /dev/null
+++ b/drivers/scsi/qedi/qedi_iscsi.c
@@ -0,0 +1,1611 @@
+/*
+ * QLogic iSCSI Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#include <linux/blkdev.h>
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <scsi/scsi_tcq.h>
+
+#include "qedi.h"
+#include "qedi_iscsi.h"
+#include "qedi_gbl.h"
+
+int qedi_recover_all_conns(struct qedi_ctx *qedi)
+{
+ struct qedi_conn *qedi_conn;
+ int i;
+
+ for (i = 0; i < qedi->max_active_conns; i++) {
+ qedi_conn = qedi_get_conn_from_id(qedi, i);
+ if (!qedi_conn)
+ continue;
+
+ qedi_start_conn_recovery(qedi, qedi_conn);
+ }
+
+ return SUCCESS;
+}
+
+static int qedi_eh_host_reset(struct scsi_cmnd *cmd)
+{
+ struct Scsi_Host *shost = cmd->device->host;
+ struct qedi_ctx *qedi;
+
+ qedi = iscsi_host_priv(shost);
+
+ return qedi_recover_all_conns(qedi);
+}
+
+struct scsi_host_template qedi_host_template = {
+ .module = THIS_MODULE,
+ .name = "QLogic QEDI 25/40/100Gb iSCSI Initiator Driver",
+ .proc_name = QEDI_MODULE_NAME,
+ .can_queue = QEDI_MAX_ISCSI_TASK,
+ .this_id = -1,
+ .sg_tablesize = QEDI_ISCSI_MAX_BDS_PER_CMD,
+ .max_sectors = 0xffff,
+ .cmd_per_lun = 128,
+ .use_clustering = ENABLE_CLUSTERING,
+ .shost_attrs = qedi_shost_attrs,
+};
+
+static void qedi_conn_free_login_resources(struct qedi_ctx *qedi,
+ struct qedi_conn *qedi_conn)
+{
+ if (qedi_conn->gen_pdu.resp_bd_tbl) {
+ dma_free_coherent(&qedi->pdev->dev, QEDI_PAGE_SIZE,
+ qedi_conn->gen_pdu.resp_bd_tbl,
+ qedi_conn->gen_pdu.resp_bd_dma);
+ qedi_conn->gen_pdu.resp_bd_tbl = NULL;
+ }
+
+ if (qedi_conn->gen_pdu.req_bd_tbl) {
+ dma_free_coherent(&qedi->pdev->dev, QEDI_PAGE_SIZE,
+ qedi_conn->gen_pdu.req_bd_tbl,
+ qedi_conn->gen_pdu.req_bd_dma);
+ qedi_conn->gen_pdu.req_bd_tbl = NULL;
+ }
+
+ if (qedi_conn->gen_pdu.resp_buf) {
+ dma_free_coherent(&qedi->pdev->dev,
+ ISCSI_DEF_MAX_RECV_SEG_LEN,
+ qedi_conn->gen_pdu.resp_buf,
+ qedi_conn->gen_pdu.resp_dma_addr);
+ qedi_conn->gen_pdu.resp_buf = NULL;
+ }
+
+ if (qedi_conn->gen_pdu.req_buf) {
+ dma_free_coherent(&qedi->pdev->dev,
+ ISCSI_DEF_MAX_RECV_SEG_LEN,
+ qedi_conn->gen_pdu.req_buf,
+ qedi_conn->gen_pdu.req_dma_addr);
+ qedi_conn->gen_pdu.req_buf = NULL;
+ }
+}
+
+static int qedi_conn_alloc_login_resources(struct qedi_ctx *qedi,
+ struct qedi_conn *qedi_conn)
+{
+ qedi_conn->gen_pdu.req_buf =
+ dma_alloc_coherent(&qedi->pdev->dev,
+ ISCSI_DEF_MAX_RECV_SEG_LEN,
+ &qedi_conn->gen_pdu.req_dma_addr,
+ GFP_KERNEL);
+ if (!qedi_conn->gen_pdu.req_buf)
+ goto login_req_buf_failure;
+
+ qedi_conn->gen_pdu.req_buf_size = 0;
+ qedi_conn->gen_pdu.req_wr_ptr = qedi_conn->gen_pdu.req_buf;
+
+ qedi_conn->gen_pdu.resp_buf =
+ dma_alloc_coherent(&qedi->pdev->dev,
+ ISCSI_DEF_MAX_RECV_SEG_LEN,
+ &qedi_conn->gen_pdu.resp_dma_addr,
+ GFP_KERNEL);
+ if (!qedi_conn->gen_pdu.resp_buf)
+ goto login_resp_buf_failure;
+
+ qedi_conn->gen_pdu.resp_buf_size = ISCSI_DEF_MAX_RECV_SEG_LEN;
+ qedi_conn->gen_pdu.resp_wr_ptr = qedi_conn->gen_pdu.resp_buf;
+
+ qedi_conn->gen_pdu.req_bd_tbl =
+ dma_alloc_coherent(&qedi->pdev->dev, QEDI_PAGE_SIZE,
+ &qedi_conn->gen_pdu.req_bd_dma, GFP_KERNEL);
+ if (!qedi_conn->gen_pdu.req_bd_tbl)
+ goto login_req_bd_tbl_failure;
+
+ qedi_conn->gen_pdu.resp_bd_tbl =
+ dma_alloc_coherent(&qedi->pdev->dev, QEDI_PAGE_SIZE,
+ &qedi_conn->gen_pdu.resp_bd_dma,
+ GFP_KERNEL);
+ if (!qedi_conn->gen_pdu.resp_bd_tbl)
+ goto login_resp_bd_tbl_failure;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SESS,
+ "Allocation successful, cid=0x%x\n",
+ qedi_conn->iscsi_conn_id);
+ return 0;
+
+login_resp_bd_tbl_failure:
+ dma_free_coherent(&qedi->pdev->dev, QEDI_PAGE_SIZE,
+ qedi_conn->gen_pdu.req_bd_tbl,
+ qedi_conn->gen_pdu.req_bd_dma);
+ qedi_conn->gen_pdu.req_bd_tbl = NULL;
+
+login_req_bd_tbl_failure:
+ dma_free_coherent(&qedi->pdev->dev, ISCSI_DEF_MAX_RECV_SEG_LEN,
+ qedi_conn->gen_pdu.resp_buf,
+ qedi_conn->gen_pdu.resp_dma_addr);
+ qedi_conn->gen_pdu.resp_buf = NULL;
+login_resp_buf_failure:
+ dma_free_coherent(&qedi->pdev->dev, ISCSI_DEF_MAX_RECV_SEG_LEN,
+ qedi_conn->gen_pdu.req_buf,
+ qedi_conn->gen_pdu.req_dma_addr);
+ qedi_conn->gen_pdu.req_buf = NULL;
+login_req_buf_failure:
+ iscsi_conn_printk(KERN_ERR, qedi_conn->cls_conn->dd_data,
+ "login resource alloc failed!!\n");
+ return -ENOMEM;
+}
+
+static void qedi_destroy_cmd_pool(struct qedi_ctx *qedi,
+ struct iscsi_session *session)
+{
+ int i;
+
+ for (i = 0; i < session->cmds_max; i++) {
+ struct iscsi_task *task = session->cmds[i];
+ struct qedi_cmd *cmd = task->dd_data;
+
+ if (cmd->io_tbl.sge_tbl)
+ dma_free_coherent(&qedi->pdev->dev,
+ QEDI_ISCSI_MAX_BDS_PER_CMD *
+ sizeof(struct iscsi_sge),
+ cmd->io_tbl.sge_tbl,
+ cmd->io_tbl.sge_tbl_dma);
+
+ if (cmd->sense_buffer)
+ dma_free_coherent(&qedi->pdev->dev,
+ SCSI_SENSE_BUFFERSIZE,
+ cmd->sense_buffer,
+ cmd->sense_buffer_dma);
+ }
+}
+
+static int qedi_alloc_sget(struct qedi_ctx *qedi, struct iscsi_session *session,
+ struct qedi_cmd *cmd)
+{
+ struct qedi_io_bdt *io = &cmd->io_tbl;
+ struct iscsi_sge *sge;
+
+ io->sge_tbl = dma_alloc_coherent(&qedi->pdev->dev,
+ QEDI_ISCSI_MAX_BDS_PER_CMD *
+ sizeof(*sge),
+ &io->sge_tbl_dma, GFP_KERNEL);
+ if (!io->sge_tbl) {
+ iscsi_session_printk(KERN_ERR, session,
+ "Could not allocate BD table.\n");
+ return -ENOMEM;
+ }
+
+ io->sge_valid = 0;
+ return 0;
+}
+
+static int qedi_setup_cmd_pool(struct qedi_ctx *qedi,
+ struct iscsi_session *session)
+{
+ int i;
+
+ for (i = 0; i < session->cmds_max; i++) {
+ struct iscsi_task *task = session->cmds[i];
+ struct qedi_cmd *cmd = task->dd_data;
+
+ task->hdr = &cmd->hdr;
+ task->hdr_max = sizeof(struct iscsi_hdr);
+
+ if (qedi_alloc_sget(qedi, session, cmd))
+ goto free_sgets;
+
+ cmd->sense_buffer = dma_alloc_coherent(&qedi->pdev->dev,
+ SCSI_SENSE_BUFFERSIZE,
+ &cmd->sense_buffer_dma,
+ GFP_KERNEL);
+ if (!cmd->sense_buffer)
+ goto free_sgets;
+ }
+
+ return 0;
+
+free_sgets:
+ qedi_destroy_cmd_pool(qedi, session);
+ return -ENOMEM;
+}
+
+static struct iscsi_cls_session *
+qedi_session_create(struct iscsi_endpoint *ep, u16 cmds_max,
+ u16 qdepth, uint32_t initial_cmdsn)
+{
+ struct Scsi_Host *shost;
+ struct iscsi_cls_session *cls_session;
+ struct qedi_ctx *qedi;
+ struct qedi_endpoint *qedi_ep;
+
+ if (!ep)
+ return NULL;
+
+ qedi_ep = ep->dd_data;
+ shost = qedi_ep->qedi->shost;
+ qedi = iscsi_host_priv(shost);
+
+ if (cmds_max > qedi->max_sqes)
+ cmds_max = qedi->max_sqes;
+ else if (cmds_max < QEDI_SQ_WQES_MIN)
+ cmds_max = QEDI_SQ_WQES_MIN;
+
+ cls_session = iscsi_session_setup(&qedi_iscsi_transport, shost,
+ cmds_max, 0, sizeof(struct qedi_cmd),
+ initial_cmdsn, ISCSI_MAX_TARGET);
+ if (!cls_session) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "Failed to setup session for ep=%p\n", qedi_ep);
+ return NULL;
+ }
+
+ if (qedi_setup_cmd_pool(qedi, cls_session->dd_data)) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "Failed to setup cmd pool for ep=%p\n", qedi_ep);
+ goto session_teardown;
+ }
+
+ return cls_session;
+
+session_teardown:
+ iscsi_session_teardown(cls_session);
+ return NULL;
+}
+
+static void qedi_session_destroy(struct iscsi_cls_session *cls_session)
+{
+ struct iscsi_session *session = cls_session->dd_data;
+ struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
+ struct qedi_ctx *qedi = iscsi_host_priv(shost);
+
+ qedi_destroy_cmd_pool(qedi, session);
+ iscsi_session_teardown(cls_session);
+}
+
+static struct iscsi_cls_conn *
+qedi_conn_create(struct iscsi_cls_session *cls_session, uint32_t cid)
+{
+ struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
+ struct qedi_ctx *qedi = iscsi_host_priv(shost);
+ struct iscsi_cls_conn *cls_conn;
+ struct qedi_conn *qedi_conn;
+ struct iscsi_conn *conn;
+
+ cls_conn = iscsi_conn_setup(cls_session, sizeof(*qedi_conn),
+ cid);
+ if (!cls_conn) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "conn_new: iscsi conn setup failed, cid=0x%x, cls_sess=%p!\n",
+ cid, cls_session);
+ return NULL;
+ }
+
+ conn = cls_conn->dd_data;
+ qedi_conn = conn->dd_data;
+ qedi_conn->cls_conn = cls_conn;
+ qedi_conn->qedi = qedi;
+ qedi_conn->ep = NULL;
+ qedi_conn->active_cmd_count = 0;
+ INIT_LIST_HEAD(&qedi_conn->active_cmd_list);
+ spin_lock_init(&qedi_conn->list_lock);
+
+ if (qedi_conn_alloc_login_resources(qedi, qedi_conn)) {
+ iscsi_conn_printk(KERN_ALERT, conn,
+ "conn_new: login resc alloc failed, cid=0x%x, cls_sess=%p!!\n",
+ cid, cls_session);
+ goto free_conn;
+ }
+
+ return cls_conn;
+
+free_conn:
+ iscsi_conn_teardown(cls_conn);
+ return NULL;
+}
+
+void qedi_mark_device_missing(struct iscsi_cls_session *cls_session)
+{
+ iscsi_block_session(cls_session);
+}
+
+void qedi_mark_device_available(struct iscsi_cls_session *cls_session)
+{
+ iscsi_unblock_session(cls_session);
+}
+
+static int qedi_bind_conn_to_iscsi_cid(struct qedi_ctx *qedi,
+ struct qedi_conn *qedi_conn)
+{
+ u32 iscsi_cid = qedi_conn->iscsi_conn_id;
+
+ if (qedi->cid_que.conn_cid_tbl[iscsi_cid]) {
+ iscsi_conn_printk(KERN_ALERT, qedi_conn->cls_conn->dd_data,
+ "conn bind - entry #%d not free\n",
+ iscsi_cid);
+ return -EBUSY;
+ }
+
+ qedi->cid_que.conn_cid_tbl[iscsi_cid] = qedi_conn;
+ return 0;
+}
+
+struct qedi_conn *qedi_get_conn_from_id(struct qedi_ctx *qedi, u32 iscsi_cid)
+{
+ if (!qedi->cid_que.conn_cid_tbl) {
+ QEDI_ERR(&qedi->dbg_ctx, "missing conn<->cid table\n");
+ return NULL;
+
+ } else if (iscsi_cid >= qedi->max_active_conns) {
+ QEDI_ERR(&qedi->dbg_ctx, "wrong cid #%d\n", iscsi_cid);
+ return NULL;
+ }
+ return qedi->cid_que.conn_cid_tbl[iscsi_cid];
+}
+
+static int qedi_conn_bind(struct iscsi_cls_session *cls_session,
+ struct iscsi_cls_conn *cls_conn,
+ u64 transport_fd, int is_leading)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct qedi_conn *qedi_conn = conn->dd_data;
+ struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
+ struct qedi_ctx *qedi = iscsi_host_priv(shost);
+ struct qedi_endpoint *qedi_ep;
+ struct iscsi_endpoint *ep;
+
+ ep = iscsi_lookup_endpoint(transport_fd);
+ if (!ep)
+ return -EINVAL;
+
+ qedi_ep = ep->dd_data;
+ if ((qedi_ep->state == EP_STATE_TCP_FIN_RCVD) ||
+ (qedi_ep->state == EP_STATE_TCP_RST_RCVD))
+ return -EINVAL;
+
+ if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
+ return -EINVAL;
+
+ qedi_ep->conn = qedi_conn;
+ qedi_conn->ep = qedi_ep;
+ qedi_conn->iscsi_conn_id = qedi_ep->iscsi_cid;
+ qedi_conn->fw_cid = qedi_ep->fw_cid;
+ qedi_conn->cmd_cleanup_req = 0;
+ qedi_conn->cmd_cleanup_cmpl = 0;
+
+ if (qedi_bind_conn_to_iscsi_cid(qedi, qedi_conn))
+ return -EINVAL;
+
+ spin_lock_init(&qedi_conn->tmf_work_lock);
+ INIT_LIST_HEAD(&qedi_conn->tmf_work_list);
+ init_waitqueue_head(&qedi_conn->wait_queue);
+ return 0;
+}
+
+static int qedi_iscsi_update_conn(struct qedi_ctx *qedi,
+ struct qedi_conn *qedi_conn)
+{
+ struct qed_iscsi_params_update *conn_info;
+ struct iscsi_cls_conn *cls_conn = qedi_conn->cls_conn;
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct qedi_endpoint *qedi_ep;
+ int rval;
+
+ qedi_ep = qedi_conn->ep;
+
+ conn_info = kzalloc(sizeof(*conn_info), GFP_KERNEL);
+ if (!conn_info) {
+ QEDI_ERR(&qedi->dbg_ctx, "memory alloc failed\n");
+ return -ENOMEM;
+ }
+
+ conn_info->update_flag = 0;
+
+ if (conn->hdrdgst_en)
+ SET_FIELD(conn_info->update_flag,
+ ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN, true);
+ if (conn->datadgst_en)
+ SET_FIELD(conn_info->update_flag,
+ ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN, true);
+ if (conn->session->initial_r2t_en)
+ SET_FIELD(conn_info->update_flag,
+ ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T,
+ true);
+ if (conn->session->imm_data_en)
+ SET_FIELD(conn_info->update_flag,
+ ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA,
+ true);
+
+ conn_info->max_seq_size = conn->session->max_burst;
+ conn_info->max_recv_pdu_length = conn->max_recv_dlength;
+ conn_info->max_send_pdu_length = conn->max_xmit_dlength;
+ conn_info->first_seq_length = conn->session->first_burst;
+ conn_info->exp_stat_sn = conn->exp_statsn;
+
+ rval = qedi_ops->update_conn(qedi->cdev, qedi_ep->handle,
+ conn_info);
+ if (rval) {
+ rval = -ENXIO;
+ QEDI_ERR(&qedi->dbg_ctx, "Could not update connection\n");
+ goto update_conn_err;
+ }
+
+ kfree(conn_info);
+ rval = 0;
+
+update_conn_err:
+ return rval;
+}
+
+static u16 qedi_calc_mss(u16 pmtu, u8 is_ipv6, u8 tcp_ts_en, u8 vlan_en)
+{
+ u16 mss = 0;
+ u16 hdrs = TCP_HDR_LEN;
+
+ if (is_ipv6)
+ hdrs += IPV6_HDR_LEN;
+ else
+ hdrs += IPV4_HDR_LEN;
+
+ if (vlan_en)
+ hdrs += VLAN_LEN;
+
+ mss = pmtu - hdrs;
+
+ if (tcp_ts_en)
+ mss -= TCP_OPTION_LEN;
+
+ if (!mss)
+ mss = DEF_MSS;
+
+ return mss;
+}
+
+static int qedi_iscsi_offload_conn(struct qedi_endpoint *qedi_ep)
+{
+ struct qedi_ctx *qedi = qedi_ep->qedi;
+ struct qed_iscsi_params_offload *conn_info;
+ int rval;
+ int i;
+
+ conn_info = kzalloc(sizeof(*conn_info), GFP_KERNEL);
+ if (!conn_info) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "Failed to allocate memory ep=%p\n", qedi_ep);
+ return -ENOMEM;
+ }
+
+ ether_addr_copy(conn_info->src.mac, qedi_ep->src_mac);
+ ether_addr_copy(conn_info->dst.mac, qedi_ep->dst_mac);
+
+ conn_info->src.ip[0] = ntohl(qedi_ep->src_addr[0]);
+ conn_info->dst.ip[0] = ntohl(qedi_ep->dst_addr[0]);
+
+ if (qedi_ep->ip_type == TCP_IPV4) {
+ conn_info->ip_version = 0;
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "After ntohl: src_addr=%pI4, dst_addr=%pI4\n",
+ qedi_ep->src_addr, qedi_ep->dst_addr);
+ } else {
+ for (i = 1; i < 4; i++) {
+ conn_info->src.ip[i] = ntohl(qedi_ep->src_addr[i]);
+ conn_info->dst.ip[i] = ntohl(qedi_ep->dst_addr[i]);
+ }
+
+ conn_info->ip_version = 1;
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "After ntohl: src_addr=%pI6, dst_addr=%pI6\n",
+ qedi_ep->src_addr, qedi_ep->dst_addr);
+ }
+
+ conn_info->src.port = qedi_ep->src_port;
+ conn_info->dst.port = qedi_ep->dst_port;
+
+ conn_info->layer_code = ISCSI_SLOW_PATH_LAYER_CODE;
+ conn_info->sq_pbl_addr = qedi_ep->sq_pbl_dma;
+ conn_info->vlan_id = qedi_ep->vlan_id;
+
+ SET_FIELD(conn_info->tcp_flags, TCP_OFFLOAD_PARAMS_TS_EN, 1);
+ SET_FIELD(conn_info->tcp_flags, TCP_OFFLOAD_PARAMS_DA_EN, 1);
+ SET_FIELD(conn_info->tcp_flags, TCP_OFFLOAD_PARAMS_DA_CNT_EN, 1);
+ SET_FIELD(conn_info->tcp_flags, TCP_OFFLOAD_PARAMS_KA_EN, 1);
+
+ conn_info->default_cq = (qedi_ep->fw_cid % 8);
+
+ conn_info->ka_max_probe_cnt = DEF_KA_MAX_PROBE_COUNT;
+ conn_info->dup_ack_theshold = 3;
+ conn_info->rcv_wnd = 65535;
+ conn_info->cwnd = DEF_MAX_CWND;
+
+ conn_info->ss_thresh = 65535;
+ conn_info->srtt = 300;
+ conn_info->rtt_var = 150;
+ conn_info->flow_label = 0;
+ conn_info->ka_timeout = DEF_KA_TIMEOUT;
+ conn_info->ka_interval = DEF_KA_INTERVAL;
+ conn_info->max_rt_time = DEF_MAX_RT_TIME;
+ conn_info->ttl = DEF_TTL;
+ conn_info->tos_or_tc = DEF_TOS;
+ conn_info->remote_port = qedi_ep->dst_port;
+ conn_info->local_port = qedi_ep->src_port;
+
+ conn_info->mss = qedi_calc_mss(qedi_ep->pmtu,
+ (qedi_ep->ip_type == TCP_IPV6),
+ 1, (qedi_ep->vlan_id != 0));
+
+ conn_info->rcv_wnd_scale = 4;
+ conn_info->ts_ticks_per_second = 1000;
+ conn_info->da_timeout_value = 200;
+ conn_info->ack_frequency = 2;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "Default cq index [%d], mss [%d]\n",
+ conn_info->default_cq, conn_info->mss);
+
+ rval = qedi_ops->offload_conn(qedi->cdev, qedi_ep->handle, conn_info);
+ if (rval)
+ QEDI_ERR(&qedi->dbg_ctx, "offload_conn returned %d, ep=%p\n",
+ rval, qedi_ep);
+
+ kfree(conn_info);
+ return rval;
+}
+
+static int qedi_conn_start(struct iscsi_cls_conn *cls_conn)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct qedi_conn *qedi_conn = conn->dd_data;
+ struct qedi_ctx *qedi;
+ int rval;
+
+ qedi = qedi_conn->qedi;
+
+ rval = qedi_iscsi_update_conn(qedi, qedi_conn);
+ if (rval) {
+ iscsi_conn_printk(KERN_ALERT, conn,
+ "conn_start: FW oflload conn failed.\n");
+ rval = -EINVAL;
+ goto start_err;
+ }
+
+ clear_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags);
+ qedi_conn->abrt_conn = 0;
+
+ rval = iscsi_conn_start(cls_conn);
+ if (rval) {
+ iscsi_conn_printk(KERN_ALERT, conn,
+ "iscsi_conn_start: FW oflload conn failed!!\n");
+ }
+
+start_err:
+ return rval;
+}
+
+static void qedi_conn_destroy(struct iscsi_cls_conn *cls_conn)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct qedi_conn *qedi_conn = conn->dd_data;
+ struct Scsi_Host *shost;
+ struct qedi_ctx *qedi;
+
+ shost = iscsi_session_to_shost(iscsi_conn_to_session(cls_conn));
+ qedi = iscsi_host_priv(shost);
+
+ qedi_conn_free_login_resources(qedi, qedi_conn);
+ iscsi_conn_teardown(cls_conn);
+}
+
+static int qedi_ep_get_param(struct iscsi_endpoint *ep,
+ enum iscsi_param param, char *buf)
+{
+ struct qedi_endpoint *qedi_ep = ep->dd_data;
+ int len;
+
+ if (!qedi_ep)
+ return -ENOTCONN;
+
+ switch (param) {
+ case ISCSI_PARAM_CONN_PORT:
+ len = sprintf(buf, "%hu\n", qedi_ep->dst_port);
+ break;
+ case ISCSI_PARAM_CONN_ADDRESS:
+ if (qedi_ep->ip_type == TCP_IPV4)
+ len = sprintf(buf, "%pI4\n", qedi_ep->dst_addr);
+ else
+ len = sprintf(buf, "%pI6\n", qedi_ep->dst_addr);
+ break;
+ default:
+ return -ENOTCONN;
+ }
+
+ return len;
+}
+
+static int qedi_host_get_param(struct Scsi_Host *shost,
+ enum iscsi_host_param param, char *buf)
+{
+ struct qedi_ctx *qedi;
+ int len;
+
+ qedi = iscsi_host_priv(shost);
+
+ switch (param) {
+ case ISCSI_HOST_PARAM_HWADDRESS:
+ len = sysfs_format_mac(buf, qedi->mac, 6);
+ break;
+ case ISCSI_HOST_PARAM_NETDEV_NAME:
+ len = sprintf(buf, "host%d\n", shost->host_no);
+ break;
+ case ISCSI_HOST_PARAM_IPADDRESS:
+ if (qedi->ip_type == TCP_IPV4)
+ len = sprintf(buf, "%pI4\n", qedi->src_ip);
+ else
+ len = sprintf(buf, "%pI6\n", qedi->src_ip);
+ break;
+ default:
+ return iscsi_host_get_param(shost, param, buf);
+ }
+
+ return len;
+}
+
+static void qedi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
+ struct iscsi_stats *stats)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct qed_iscsi_stats iscsi_stats;
+ struct Scsi_Host *shost;
+ struct qedi_ctx *qedi;
+
+ shost = iscsi_session_to_shost(iscsi_conn_to_session(cls_conn));
+ qedi = iscsi_host_priv(shost);
+ qedi_ops->get_stats(qedi->cdev, &iscsi_stats);
+
+ conn->txdata_octets = iscsi_stats.iscsi_tx_bytes_cnt;
+ conn->rxdata_octets = iscsi_stats.iscsi_rx_bytes_cnt;
+ conn->dataout_pdus_cnt = (uint32_t)iscsi_stats.iscsi_tx_data_pdu_cnt;
+ conn->datain_pdus_cnt = (uint32_t)iscsi_stats.iscsi_rx_data_pdu_cnt;
+ conn->r2t_pdus_cnt = (uint32_t)iscsi_stats.iscsi_rx_r2t_pdu_cnt;
+
+ stats->txdata_octets = conn->txdata_octets;
+ stats->rxdata_octets = conn->rxdata_octets;
+ stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
+ stats->dataout_pdus = conn->dataout_pdus_cnt;
+ stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
+ stats->datain_pdus = conn->datain_pdus_cnt;
+ stats->r2t_pdus = conn->r2t_pdus_cnt;
+ stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
+ stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
+ stats->digest_err = 0;
+ stats->timeout_err = 0;
+ strcpy(stats->custom[0].desc, "eh_abort_cnt");
+ stats->custom[0].value = conn->eh_abort_cnt;
+ stats->custom_length = 1;
+}
+
+static void qedi_iscsi_prep_generic_pdu_bd(struct qedi_conn *qedi_conn)
+{
+ struct iscsi_sge *bd_tbl;
+
+ bd_tbl = (struct iscsi_sge *)qedi_conn->gen_pdu.req_bd_tbl;
+
+ bd_tbl->sge_addr.hi =
+ (u32)((u64)qedi_conn->gen_pdu.req_dma_addr >> 32);
+ bd_tbl->sge_addr.lo = (u32)qedi_conn->gen_pdu.req_dma_addr;
+ bd_tbl->sge_len = qedi_conn->gen_pdu.req_wr_ptr -
+ qedi_conn->gen_pdu.req_buf;
+ bd_tbl->reserved0 = 0;
+ bd_tbl = (struct iscsi_sge *)qedi_conn->gen_pdu.resp_bd_tbl;
+ bd_tbl->sge_addr.hi =
+ (u32)((u64)qedi_conn->gen_pdu.resp_dma_addr >> 32);
+ bd_tbl->sge_addr.lo = (u32)qedi_conn->gen_pdu.resp_dma_addr;
+ bd_tbl->sge_len = ISCSI_DEF_MAX_RECV_SEG_LEN;
+ bd_tbl->reserved0 = 0;
+}
+
+static int qedi_iscsi_send_generic_request(struct iscsi_task *task)
+{
+ struct qedi_cmd *cmd = task->dd_data;
+ struct qedi_conn *qedi_conn = cmd->conn;
+ char *buf;
+ int data_len;
+ int rc = 0;
+
+ qedi_iscsi_prep_generic_pdu_bd(qedi_conn);
+ switch (task->hdr->opcode & ISCSI_OPCODE_MASK) {
+ case ISCSI_OP_LOGIN:
+ qedi_send_iscsi_login(qedi_conn, task);
+ break;
+ case ISCSI_OP_NOOP_OUT:
+ data_len = qedi_conn->gen_pdu.req_buf_size;
+ buf = qedi_conn->gen_pdu.req_buf;
+ if (data_len)
+ rc = qedi_send_iscsi_nopout(qedi_conn, task,
+ buf, data_len, 1);
+ else
+ rc = qedi_send_iscsi_nopout(qedi_conn, task,
+ NULL, 0, 1);
+ break;
+ case ISCSI_OP_LOGOUT:
+ rc = qedi_send_iscsi_logout(qedi_conn, task);
+ break;
+ case ISCSI_OP_TEXT:
+ rc = qedi_send_iscsi_text(qedi_conn, task);
+ break;
+ default:
+ iscsi_conn_printk(KERN_ALERT, qedi_conn->cls_conn->dd_data,
+ "unsupported op 0x%x\n", task->hdr->opcode);
+ }
+
+ return rc;
+}
+
+static int qedi_mtask_xmit(struct iscsi_conn *conn, struct iscsi_task *task)
+{
+ struct qedi_conn *qedi_conn = conn->dd_data;
+ struct qedi_cmd *cmd = task->dd_data;
+
+ memset(qedi_conn->gen_pdu.req_buf, 0, ISCSI_DEF_MAX_RECV_SEG_LEN);
+
+ qedi_conn->gen_pdu.req_buf_size = task->data_count;
+
+ if (task->data_count) {
+ memcpy(qedi_conn->gen_pdu.req_buf, task->data,
+ task->data_count);
+ qedi_conn->gen_pdu.req_wr_ptr =
+ qedi_conn->gen_pdu.req_buf + task->data_count;
+ }
+
+ cmd->conn = conn->dd_data;
+ cmd->scsi_cmd = NULL;
+ return qedi_iscsi_send_generic_request(task);
+}
+
+static int qedi_task_xmit(struct iscsi_task *task)
+{
+ struct iscsi_conn *conn = task->conn;
+ struct qedi_conn *qedi_conn = conn->dd_data;
+ struct qedi_cmd *cmd = task->dd_data;
+ struct scsi_cmnd *sc = task->sc;
+
+ cmd->state = 0;
+ cmd->task = NULL;
+ cmd->use_slowpath = false;
+ cmd->conn = qedi_conn;
+ cmd->task = task;
+ cmd->io_cmd_in_list = false;
+ INIT_LIST_HEAD(&cmd->io_cmd);
+
+ if (!sc)
+ return qedi_mtask_xmit(conn, task);
+}
+
+static struct iscsi_endpoint *
+qedi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
+ int non_blocking)
+{
+ struct qedi_ctx *qedi;
+ struct iscsi_endpoint *ep;
+ struct qedi_endpoint *qedi_ep;
+ struct sockaddr_in *addr;
+ struct sockaddr_in6 *addr6;
+ struct qed_dev *cdev = NULL;
+ struct qedi_uio_dev *udev = NULL;
+ struct iscsi_path path_req;
+ u32 msg_type = ISCSI_KEVENT_IF_DOWN;
+ u32 iscsi_cid = QEDI_CID_RESERVED;
+ u16 len = 0;
+ char *buf = NULL;
+ int ret;
+
+ if (!shost) {
+ ret = -ENXIO;
+ QEDI_ERR(NULL, "shost is NULL\n");
+ return ERR_PTR(ret);
+ }
+
+ if (do_not_recover) {
+ ret = -ENOMEM;
+ return ERR_PTR(ret);
+ }
+
+ qedi = iscsi_host_priv(shost);
+ cdev = qedi->cdev;
+ udev = qedi->udev;
+
+ if (test_bit(QEDI_IN_OFFLINE, &qedi->flags) ||
+ test_bit(QEDI_IN_RECOVERY, &qedi->flags)) {
+ ret = -ENOMEM;
+ return ERR_PTR(ret);
+ }
+
+ ep = iscsi_create_endpoint(sizeof(struct qedi_endpoint));
+ if (!ep) {
+ QEDI_ERR(&qedi->dbg_ctx, "endpoint create fail\n");
+ ret = -ENOMEM;
+ return ERR_PTR(ret);
+ }
+ qedi_ep = ep->dd_data;
+ memset(qedi_ep, 0, sizeof(struct qedi_endpoint));
+ qedi_ep->state = EP_STATE_IDLE;
+ qedi_ep->iscsi_cid = (u32)-1;
+ qedi_ep->qedi = qedi;
+
+ if (dst_addr->sa_family == AF_INET) {
+ addr = (struct sockaddr_in *)dst_addr;
+ memcpy(qedi_ep->dst_addr, &addr->sin_addr.s_addr,
+ sizeof(struct in_addr));
+ qedi_ep->dst_port = ntohs(addr->sin_port);
+ qedi_ep->ip_type = TCP_IPV4;
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "dst_addr=%pI4, dst_port=%u\n",
+ qedi_ep->dst_addr, qedi_ep->dst_port);
+ } else if (dst_addr->sa_family == AF_INET6) {
+ addr6 = (struct sockaddr_in6 *)dst_addr;
+ memcpy(qedi_ep->dst_addr, &addr6->sin6_addr,
+ sizeof(struct in6_addr));
+ qedi_ep->dst_port = ntohs(addr6->sin6_port);
+ qedi_ep->ip_type = TCP_IPV6;
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "dst_addr=%pI6, dst_port=%u\n",
+ qedi_ep->dst_addr, qedi_ep->dst_port);
+ } else {
+ QEDI_ERR(&qedi->dbg_ctx, "Invalid endpoint\n");
+ }
+
+ if (atomic_read(&qedi->link_state) != QEDI_LINK_UP) {
+ QEDI_WARN(&qedi->dbg_ctx, "qedi link down\n");
+ ret = -ENXIO;
+ goto ep_conn_exit;
+ }
+
+ ret = qedi_alloc_sq(qedi, qedi_ep);
+ if (ret)
+ goto ep_conn_exit;
+
+ ret = qedi_ops->acquire_conn(qedi->cdev, &qedi_ep->handle,
+ &qedi_ep->fw_cid, &qedi_ep->p_doorbell);
+
+ if (ret) {
+ QEDI_ERR(&qedi->dbg_ctx, "Could not acquire connection\n");
+ ret = -ENXIO;
+ goto ep_free_sq;
+ }
+
+ iscsi_cid = qedi_ep->handle;
+ qedi_ep->iscsi_cid = iscsi_cid;
+
+ init_waitqueue_head(&qedi_ep->ofld_wait);
+ init_waitqueue_head(&qedi_ep->tcp_ofld_wait);
+ qedi_ep->state = EP_STATE_OFLDCONN_START;
+ qedi->ep_tbl[iscsi_cid] = qedi_ep;
+
+ buf = (char *)&path_req;
+ len = sizeof(path_req);
+ memset(&path_req, 0, len);
+
+ msg_type = ISCSI_KEVENT_PATH_REQ;
+ path_req.handle = (u64)qedi_ep->iscsi_cid;
+ path_req.pmtu = qedi->ll2_mtu;
+ qedi_ep->pmtu = qedi->ll2_mtu;
+ if (qedi_ep->ip_type == TCP_IPV4) {
+ memcpy(&path_req.dst.v4_addr, &qedi_ep->dst_addr,
+ sizeof(struct in_addr));
+ path_req.ip_addr_len = 4;
+ } else {
+ memcpy(&path_req.dst.v6_addr, &qedi_ep->dst_addr,
+ sizeof(struct in6_addr));
+ path_req.ip_addr_len = 16;
+ }
+
+ ret = iscsi_offload_mesg(shost, &qedi_iscsi_transport, msg_type, buf,
+ len);
+ if (ret) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "iscsi_offload_mesg() failed for cid=0x%x ret=%d\n",
+ iscsi_cid, ret);
+ goto ep_rel_conn;
+ }
+
+ atomic_inc(&qedi->num_offloads);
+ return ep;
+
+ep_rel_conn:
+ qedi->ep_tbl[iscsi_cid] = NULL;
+ ret = qedi_ops->release_conn(qedi->cdev, qedi_ep->handle);
+ if (ret)
+ QEDI_WARN(&qedi->dbg_ctx, "release_conn returned %d\n",
+ ret);
+ep_free_sq:
+ qedi_free_sq(qedi, qedi_ep);
+ep_conn_exit:
+ iscsi_destroy_endpoint(ep);
+ return ERR_PTR(ret);
+}
+
+static int qedi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
+{
+ struct qedi_endpoint *qedi_ep;
+ int ret = 0;
+
+ if (do_not_recover)
+ return 1;
+
+ qedi_ep = ep->dd_data;
+ if (qedi_ep->state == EP_STATE_IDLE ||
+ qedi_ep->state == EP_STATE_OFLDCONN_FAILED)
+ return -1;
+
+ if (qedi_ep->state == EP_STATE_OFLDCONN_COMPL)
+ ret = 1;
+
+ ret = wait_event_interruptible_timeout(qedi_ep->ofld_wait,
+ QEDI_OFLD_WAIT_STATE(qedi_ep),
+ msecs_to_jiffies(timeout_ms));
+
+ if (qedi_ep->state == EP_STATE_OFLDCONN_FAILED)
+ ret = -1;
+
+ if (ret > 0)
+ return 1;
+ else if (!ret)
+ return 0;
+ else
+ return ret;
+}
+
+static void qedi_cleanup_active_cmd_list(struct qedi_conn *qedi_conn)
+{
+ struct qedi_cmd *cmd, *cmd_tmp;
+
+ list_for_each_entry_safe(cmd, cmd_tmp, &qedi_conn->active_cmd_list,
+ io_cmd) {
+ list_del_init(&cmd->io_cmd);
+ qedi_conn->active_cmd_count--;
+ }
+}
+
+static void qedi_ep_disconnect(struct iscsi_endpoint *ep)
+{
+ struct qedi_endpoint *qedi_ep;
+ struct qedi_conn *qedi_conn = NULL;
+ struct iscsi_conn *conn = NULL;
+ struct qedi_ctx *qedi;
+ int ret = 0;
+ int wait_delay = 20 * HZ;
+ int abrt_conn = 0;
+ int count = 10;
+
+ qedi_ep = ep->dd_data;
+ qedi = qedi_ep->qedi;
+
+ flush_work(&qedi_ep->offload_work);
+
+ if (qedi_ep->conn) {
+ qedi_conn = qedi_ep->conn;
+ conn = qedi_conn->cls_conn->dd_data;
+ iscsi_suspend_queue(conn);
+ abrt_conn = qedi_conn->abrt_conn;
+
+ while (count--) {
+ if (!test_bit(QEDI_CONN_FW_CLEANUP,
+ &qedi_conn->flags)) {
+ break;
+ }
+ msleep(1000);
+ }
+
+ if (test_bit(QEDI_IN_RECOVERY, &qedi->flags)) {
+ if (do_not_recover) {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "Do not recover cid=0x%x\n",
+ qedi_ep->iscsi_cid);
+ goto ep_exit_recover;
+ }
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "Reset recovery cid=0x%x, qedi_ep=%p, state=0x%x\n",
+ qedi_ep->iscsi_cid, qedi_ep, qedi_ep->state);
+ qedi_cleanup_active_cmd_list(qedi_conn);
+ goto ep_release_conn;
+ }
+ }
+
+ if (do_not_recover)
+ goto ep_exit_recover;
+
+ switch (qedi_ep->state) {
+ case EP_STATE_OFLDCONN_START:
+ goto ep_release_conn;
+ case EP_STATE_OFLDCONN_FAILED:
+ break;
+ case EP_STATE_OFLDCONN_COMPL:
+ if (unlikely(!qedi_conn))
+ break;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "Active cmd count=%d, abrt_conn=%d, ep state=0x%x, cid=0x%x, qedi_conn=%p\n",
+ qedi_conn->active_cmd_count, abrt_conn,
+ qedi_ep->state,
+ qedi_ep->iscsi_cid,
+ qedi_ep->conn
+ );
+
+ if (!qedi_conn->active_cmd_count)
+ abrt_conn = 0;
+ else
+ abrt_conn = 1;
+
+ if (abrt_conn)
+ qedi_clearsq(qedi, qedi_conn, NULL);
+ break;
+ default:
+ break;
+ }
+
+ qedi_ep->state = EP_STATE_DISCONN_START;
+ ret = qedi_ops->destroy_conn(qedi->cdev, qedi_ep->handle, abrt_conn);
+ if (ret) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "destroy_conn failed returned %d\n", ret);
+ } else {
+ ret = wait_event_interruptible_timeout(
+ qedi_ep->tcp_ofld_wait,
+ (qedi_ep->state !=
+ EP_STATE_DISCONN_START),
+ wait_delay);
+ if ((ret <= 0) || (qedi_ep->state == EP_STATE_DISCONN_START)) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "Destroy conn timedout or interrupted, ret=%d, delay=%d, cid=0x%x\n",
+ ret, wait_delay, qedi_ep->iscsi_cid);
+ }
+ }
+
+ep_release_conn:
+ ret = qedi_ops->release_conn(qedi->cdev, qedi_ep->handle);
+ if (ret)
+ QEDI_WARN(&qedi->dbg_ctx,
+ "release_conn returned %d, cid=0x%x\n",
+ ret, qedi_ep->iscsi_cid);
+ep_exit_recover:
+ qedi_ep->state = EP_STATE_IDLE;
+ qedi->ep_tbl[qedi_ep->iscsi_cid] = NULL;
+ qedi->cid_que.conn_cid_tbl[qedi_ep->iscsi_cid] = NULL;
+ qedi_free_id(&qedi->lcl_port_tbl, qedi_ep->src_port);
+ qedi_free_sq(qedi, qedi_ep);
+
+ if (qedi_conn)
+ qedi_conn->ep = NULL;
+
+ qedi_ep->conn = NULL;
+ qedi_ep->qedi = NULL;
+ atomic_dec(&qedi->num_offloads);
+
+ iscsi_destroy_endpoint(ep);
+}
+
+static int qedi_data_avail(struct qedi_ctx *qedi, u16 vlanid)
+{
+ struct qed_dev *cdev = qedi->cdev;
+ struct qedi_uio_dev *udev;
+ struct qedi_uio_ctrl *uctrl;
+ struct sk_buff *skb;
+ u32 len;
+ int rc = 0;
+
+ udev = qedi->udev;
+ if (!udev) {
+ QEDI_ERR(&qedi->dbg_ctx, "udev is NULL.\n");
+ return -EINVAL;
+ }
+
+ uctrl = (struct qedi_uio_ctrl *)udev->uctrl;
+ if (!uctrl) {
+ QEDI_ERR(&qedi->dbg_ctx, "uctlr is NULL.\n");
+ return -EINVAL;
+ }
+
+ len = uctrl->host_tx_pkt_len;
+ if (!len) {
+ QEDI_ERR(&qedi->dbg_ctx, "Invalid len %u\n", len);
+ return -EINVAL;
+ }
+
+ skb = alloc_skb(len, GFP_ATOMIC);
+ if (!skb) {
+ QEDI_ERR(&qedi->dbg_ctx, "alloc_skb failed\n");
+ return -EINVAL;
+ }
+
+ skb_put(skb, len);
+ memcpy(skb->data, udev->tx_pkt, len);
+ skb->ip_summed = CHECKSUM_NONE;
+
+ if (vlanid)
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlanid);
+
+ rc = qedi_ops->ll2->start_xmit(cdev, skb);
+ if (rc) {
+ QEDI_ERR(&qedi->dbg_ctx, "ll2 start_xmit returned %d\n",
+ rc);
+ kfree_skb(skb);
+ }
+
+ uctrl->host_tx_pkt_len = 0;
+ uctrl->hw_tx_cons++;
+
+ return rc;
+}
+
+static void qedi_offload_work(struct work_struct *work)
+{
+ struct qedi_endpoint *qedi_ep =
+ container_of(work, struct qedi_endpoint, offload_work);
+ struct qedi_ctx *qedi;
+ int wait_delay = 20 * HZ;
+ int ret;
+
+ qedi = qedi_ep->qedi;
+
+ ret = qedi_iscsi_offload_conn(qedi_ep);
+ if (ret) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "offload error: iscsi_cid=%u, qedi_ep=%p, ret=%d\n",
+ qedi_ep->iscsi_cid, qedi_ep, ret);
+ qedi_ep->state = EP_STATE_OFLDCONN_FAILED;
+ return;
+ }
+
+ ret = wait_event_interruptible_timeout(qedi_ep->tcp_ofld_wait,
+ (qedi_ep->state ==
+ EP_STATE_OFLDCONN_COMPL),
+ wait_delay);
+ if ((ret <= 0) || (qedi_ep->state != EP_STATE_OFLDCONN_COMPL)) {
+ qedi_ep->state = EP_STATE_OFLDCONN_FAILED;
+ QEDI_ERR(&qedi->dbg_ctx,
+ "Offload conn TIMEOUT iscsi_cid=%u, qedi_ep=%p\n",
+ qedi_ep->iscsi_cid, qedi_ep);
+ }
+}
+
+static int qedi_set_path(struct Scsi_Host *shost, struct iscsi_path *path_data)
+{
+ struct qedi_ctx *qedi;
+ struct qedi_endpoint *qedi_ep;
+ int ret = 0;
+ u32 iscsi_cid;
+ u16 port_id = 0;
+
+ if (!shost) {
+ ret = -ENXIO;
+ QEDI_ERR(NULL, "shost is NULL\n");
+ return ret;
+ }
+
+ if (strcmp(shost->hostt->proc_name, "qedi")) {
+ ret = -ENXIO;
+ QEDI_ERR(NULL, "shost %s is invalid\n",
+ shost->hostt->proc_name);
+ return ret;
+ }
+
+ qedi = iscsi_host_priv(shost);
+ if (path_data->handle == QEDI_PATH_HANDLE) {
+ ret = qedi_data_avail(qedi, path_data->vlan_id);
+ goto set_path_exit;
+ }
+
+ iscsi_cid = (u32)path_data->handle;
+ qedi_ep = qedi->ep_tbl[iscsi_cid];
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "iscsi_cid=0x%x, qedi_ep=%p\n", iscsi_cid, qedi_ep);
+
+ if (!is_valid_ether_addr(&path_data->mac_addr[0])) {
+ QEDI_NOTICE(&qedi->dbg_ctx, "dst mac NOT VALID\n");
+ ret = -EIO;
+ goto set_path_exit;
+ }
+
+ ether_addr_copy(&qedi_ep->src_mac[0], &qedi->mac[0]);
+ ether_addr_copy(&qedi_ep->dst_mac[0], &path_data->mac_addr[0]);
+
+ qedi_ep->vlan_id = path_data->vlan_id;
+ if (path_data->pmtu < DEF_PATH_MTU) {
+ qedi_ep->pmtu = qedi->ll2_mtu;
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+ "MTU cannot be %u, using default MTU %u\n",
+ path_data->pmtu, qedi_ep->pmtu);
+ }
+
+ if (path_data->pmtu != qedi->ll2_mtu) {
+ if (path_data->pmtu > JUMBO_MTU) {
+ ret = -EINVAL;
+ QEDI_ERR(NULL, "Invalid MTU %u\n", path_data->pmtu);
+ goto set_path_exit;
+ }
+
+ qedi_reset_host_mtu(qedi, path_data->pmtu);
+ qedi_ep->pmtu = qedi->ll2_mtu;
+ }
+
+ port_id = qedi_ep->src_port;
+ if (port_id >= QEDI_LOCAL_PORT_MIN &&
+ port_id < QEDI_LOCAL_PORT_MAX) {
+ if (qedi_alloc_id(&qedi->lcl_port_tbl, port_id))
+ port_id = 0;
+ } else {
+ port_id = 0;
+ }
+
+ if (!port_id) {
+ port_id = qedi_alloc_new_id(&qedi->lcl_port_tbl);
+ if (port_id == QEDI_LOCAL_PORT_INVALID) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "Failed to allocate port id for iscsi_cid=0x%x\n",
+ iscsi_cid);
+ ret = -ENOMEM;
+ goto set_path_exit;
+ }
+ }
+
+ qedi_ep->src_port = port_id;
+
+ if (qedi_ep->ip_type == TCP_IPV4) {
+ memcpy(&qedi_ep->src_addr[0], &path_data->src.v4_addr,
+ sizeof(struct in_addr));
+ memcpy(&qedi->src_ip[0], &path_data->src.v4_addr,
+ sizeof(struct in_addr));
+ qedi->ip_type = TCP_IPV4;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "src addr:port=%pI4:%u, dst addr:port=%pI4:%u\n",
+ qedi_ep->src_addr, qedi_ep->src_port,
+ qedi_ep->dst_addr, qedi_ep->dst_port);
+ } else {
+ memcpy(&qedi_ep->src_addr[0], &path_data->src.v6_addr,
+ sizeof(struct in6_addr));
+ memcpy(&qedi->src_ip[0], &path_data->src.v6_addr,
+ sizeof(struct in6_addr));
+ qedi->ip_type = TCP_IPV6;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "src addr:port=%pI6:%u, dst addr:port=%pI6:%u\n",
+ qedi_ep->src_addr, qedi_ep->src_port,
+ qedi_ep->dst_addr, qedi_ep->dst_port);
+ }
+
+ INIT_WORK(&qedi_ep->offload_work, qedi_offload_work);
+ queue_work(qedi->offload_thread, &qedi_ep->offload_work);
+
+ ret = 0;
+
+set_path_exit:
+ return ret;
+}
+
+static umode_t qedi_attr_is_visible(int param_type, int param)
+{
+ switch (param_type) {
+ case ISCSI_HOST_PARAM:
+ switch (param) {
+ case ISCSI_HOST_PARAM_NETDEV_NAME:
+ case ISCSI_HOST_PARAM_HWADDRESS:
+ case ISCSI_HOST_PARAM_IPADDRESS:
+ return S_IRUGO;
+ default:
+ return 0;
+ }
+ case ISCSI_PARAM:
+ switch (param) {
+ case ISCSI_PARAM_MAX_RECV_DLENGTH:
+ case ISCSI_PARAM_MAX_XMIT_DLENGTH:
+ case ISCSI_PARAM_HDRDGST_EN:
+ case ISCSI_PARAM_DATADGST_EN:
+ case ISCSI_PARAM_CONN_ADDRESS:
+ case ISCSI_PARAM_CONN_PORT:
+ case ISCSI_PARAM_EXP_STATSN:
+ case ISCSI_PARAM_PERSISTENT_ADDRESS:
+ case ISCSI_PARAM_PERSISTENT_PORT:
+ case ISCSI_PARAM_PING_TMO:
+ case ISCSI_PARAM_RECV_TMO:
+ case ISCSI_PARAM_INITIAL_R2T_EN:
+ case ISCSI_PARAM_MAX_R2T:
+ case ISCSI_PARAM_IMM_DATA_EN:
+ case ISCSI_PARAM_FIRST_BURST:
+ case ISCSI_PARAM_MAX_BURST:
+ case ISCSI_PARAM_PDU_INORDER_EN:
+ case ISCSI_PARAM_DATASEQ_INORDER_EN:
+ case ISCSI_PARAM_ERL:
+ case ISCSI_PARAM_TARGET_NAME:
+ case ISCSI_PARAM_TPGT:
+ case ISCSI_PARAM_USERNAME:
+ case ISCSI_PARAM_PASSWORD:
+ case ISCSI_PARAM_USERNAME_IN:
+ case ISCSI_PARAM_PASSWORD_IN:
+ case ISCSI_PARAM_FAST_ABORT:
+ case ISCSI_PARAM_ABORT_TMO:
+ case ISCSI_PARAM_LU_RESET_TMO:
+ case ISCSI_PARAM_TGT_RESET_TMO:
+ case ISCSI_PARAM_IFACE_NAME:
+ case ISCSI_PARAM_INITIATOR_NAME:
+ case ISCSI_PARAM_BOOT_ROOT:
+ case ISCSI_PARAM_BOOT_NIC:
+ case ISCSI_PARAM_BOOT_TARGET:
+ return S_IRUGO;
+ default:
+ return 0;
+ }
+ }
+
+ return 0;
+}
+
+static void qedi_cleanup_task(struct iscsi_task *task)
+{
+ if (!task->sc || task->state == ISCSI_TASK_PENDING) {
+ QEDI_INFO(NULL, QEDI_LOG_IO, "Returning ref_cnt=%d\n",
+ atomic_read(&task->refcount));
+ return;
+ }
+
+ qedi_iscsi_unmap_sg_list(task->dd_data);
+}
+
+struct iscsi_transport qedi_iscsi_transport = {
+ .owner = THIS_MODULE,
+ .name = QEDI_MODULE_NAME,
+ .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | CAP_MULTI_R2T | CAP_DATADGST |
+ CAP_DATA_PATH_OFFLOAD | CAP_TEXT_NEGO,
+ .create_session = qedi_session_create,
+ .destroy_session = qedi_session_destroy,
+ .create_conn = qedi_conn_create,
+ .bind_conn = qedi_conn_bind,
+ .start_conn = qedi_conn_start,
+ .stop_conn = iscsi_conn_stop,
+ .destroy_conn = qedi_conn_destroy,
+ .set_param = iscsi_set_param,
+ .get_ep_param = qedi_ep_get_param,
+ .get_conn_param = iscsi_conn_get_param,
+ .get_session_param = iscsi_session_get_param,
+ .get_host_param = qedi_host_get_param,
+ .send_pdu = iscsi_conn_send_pdu,
+ .get_stats = qedi_conn_get_stats,
+ .xmit_task = qedi_task_xmit,
+ .cleanup_task = qedi_cleanup_task,
+ .session_recovery_timedout = iscsi_session_recovery_timedout,
+ .ep_connect = qedi_ep_connect,
+ .ep_poll = qedi_ep_poll,
+ .ep_disconnect = qedi_ep_disconnect,
+ .set_path = qedi_set_path,
+ .attr_is_visible = qedi_attr_is_visible,
+};
+
+void qedi_start_conn_recovery(struct qedi_ctx *qedi,
+ struct qedi_conn *qedi_conn)
+{
+ struct iscsi_cls_session *cls_sess;
+ struct iscsi_cls_conn *cls_conn;
+ struct iscsi_conn *conn;
+
+ cls_conn = qedi_conn->cls_conn;
+ conn = cls_conn->dd_data;
+ cls_sess = iscsi_conn_to_session(cls_conn);
+
+ if (iscsi_is_session_online(cls_sess)) {
+ qedi_conn->abrt_conn = 1;
+ QEDI_ERR(&qedi->dbg_ctx,
+ "Failing connection, state=0x%x, cid=0x%x\n",
+ conn->session->state, qedi_conn->iscsi_conn_id);
+ iscsi_conn_failure(qedi_conn->cls_conn->dd_data,
+ ISCSI_ERR_CONN_FAILED);
+ }
+}
+
+static const struct {
+ enum iscsi_error_types error_code;
+ char *err_string;
+} qedi_iscsi_error[] = {
+ { ISCSI_STATUS_NONE,
+ "tcp_error none"
+ },
+ { ISCSI_CONN_ERROR_TASK_CID_MISMATCH,
+ "task cid mismatch"
+ },
+ { ISCSI_CONN_ERROR_TASK_NOT_VALID,
+ "invalid task"
+ },
+ { ISCSI_CONN_ERROR_RQ_RING_IS_FULL,
+ "rq ring full"
+ },
+ { ISCSI_CONN_ERROR_CMDQ_RING_IS_FULL,
+ "cmdq ring full"
+ },
+ { ISCSI_CONN_ERROR_HQE_CACHING_FAILED,
+ "sge caching failed"
+ },
+ { ISCSI_CONN_ERROR_HEADER_DIGEST_ERROR,
+ "hdr digest error"
+ },
+ { ISCSI_CONN_ERROR_LOCAL_COMPLETION_ERROR,
+ "local cmpl error"
+ },
+ { ISCSI_CONN_ERROR_DATA_OVERRUN,
+ "invalid task"
+ },
+ { ISCSI_CONN_ERROR_OUT_OF_SGES_ERROR,
+ "out of sge error"
+ },
+ { ISCSI_CONN_ERROR_TCP_SEG_PROC_IP_OPTIONS_ERROR,
+ "tcp seg ip options error"
+ },
+ { ISCSI_CONN_ERROR_TCP_IP_FRAGMENT_ERROR,
+ "tcp ip fragment error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_LEN,
+ "AHS len protocol error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_ITT_OUT_OF_RANGE,
+ "itt out of range error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_EXCEEDS_PDU_SIZE,
+ "data seg more than pdu size"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE,
+ "invalid opcode"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE_BEFORE_UPDATE,
+ "invalid opcode before update"
+ },
+ { ISCSI_CONN_ERROR_UNVALID_NOPIN_DSL,
+ "unexpected opcode"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_CARRIES_NO_DATA,
+ "r2t carries no data"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SN,
+ "data sn error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_IN_TTT,
+ "data TTT error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_TTT,
+ "r2t TTT error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_BUFFER_OFFSET,
+ "buffer offset error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_BUFFER_OFFSET_OOO,
+ "buffer offset ooo"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_SN,
+ "data seg len 0"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0,
+ "data xer len error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1,
+ "data xer len1 error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_2,
+ "data xer len2 error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_LUN,
+ "protocol lun error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO,
+ "f bit zero error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_EXP_STAT_SN,
+ "exp stat sn error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_DSL_NOT_ZERO,
+ "dsl not zero error"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_DSL,
+ "invalid dsl"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG,
+ "data seg len too big"
+ },
+ { ISCSI_CONN_ERROR_PROTOCOL_ERR_OUTSTANDING_R2T_COUNT,
+ "outstanding r2t count error"
+ },
+ { ISCSI_CONN_ERROR_SENSE_DATA_LENGTH,
+ "sense datalen error"
+ },
+};
+
+char *qedi_get_iscsi_error(enum iscsi_error_types err_code)
+{
+ int i;
+ char *msg = NULL;
+
+ for (i = 0; i < ARRAY_SIZE(qedi_iscsi_error); i++) {
+ if (qedi_iscsi_error[i].error_code == err_code) {
+ msg = qedi_iscsi_error[i].err_string;
+ break;
+ }
+ }
+ return msg;
+}
+
+void qedi_process_iscsi_error(struct qedi_endpoint *ep, struct async_data *data)
+{
+ struct qedi_conn *qedi_conn;
+ struct qedi_ctx *qedi;
+ char warn_notice[] = "iscsi_warning";
+ char error_notice[] = "iscsi_error";
+ char unknown_msg[] = "Unknown error";
+ char *message;
+ int need_recovery = 0;
+ u32 err_mask = 0;
+ char *msg;
+
+ if (!ep)
+ return;
+
+ qedi_conn = ep->conn;
+ if (!qedi_conn)
+ return;
+
+ qedi = ep->qedi;
+
+ QEDI_ERR(&qedi->dbg_ctx, "async event iscsi error:0x%x\n",
+ data->error_code);
+
+ if (err_mask) {
+ need_recovery = 0;
+ message = warn_notice;
+ } else {
+ need_recovery = 1;
+ message = error_notice;
+ }
+
+ msg = qedi_get_iscsi_error(data->error_code);
+ if (!msg) {
+ need_recovery = 0;
+ msg = unknown_msg;
+ }
+
+ iscsi_conn_printk(KERN_ALERT,
+ qedi_conn->cls_conn->dd_data,
+ "qedi: %s - %s\n", message, msg);
+
+ if (need_recovery)
+ qedi_start_conn_recovery(qedi_conn->qedi, qedi_conn);
+}
+
+void qedi_process_tcp_error(struct qedi_endpoint *ep, struct async_data *data)
+{
+ struct qedi_conn *qedi_conn;
+
+ if (!ep)
+ return;
+
+ qedi_conn = ep->conn;
+ if (!qedi_conn)
+ return;
+
+ QEDI_ERR(&ep->qedi->dbg_ctx, "async event TCP error:0x%x\n",
+ data->error_code);
+
+ qedi_start_conn_recovery(qedi_conn->qedi, qedi_conn);
+}
diff --git a/drivers/scsi/qedi/qedi_iscsi.h b/drivers/scsi/qedi/qedi_iscsi.h
new file mode 100644
index 0000000..de7ab1f
--- /dev/null
+++ b/drivers/scsi/qedi/qedi_iscsi.h
@@ -0,0 +1,232 @@
+/*
+ * QLogic iSCSI Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QEDI_ISCSI_H_
+#define _QEDI_ISCSI_H_
+
+#include <linux/socket.h>
+#include <linux/completion.h>
+#include "qedi.h"
+
+#define ISCSI_MAX_SESS_PER_HBA 4096
+
+#define DEF_KA_TIMEOUT 7200000
+#define DEF_KA_INTERVAL 10000
+#define DEF_KA_MAX_PROBE_COUNT 10
+#define DEF_TOS 0
+#define DEF_TTL 0xfe
+#define DEF_SND_SEQ_SCALE 0
+#define DEF_RCV_BUF 0xffff
+#define DEF_SND_BUF 0xffff
+#define DEF_SEED 0
+#define DEF_MAX_RT_TIME 8000
+#define DEF_MAX_DA_COUNT 2
+#define DEF_SWS_TIMER 1000
+#define DEF_MAX_CWND 2
+#define DEF_PATH_MTU 1500
+#define DEF_MSS 1460
+#define DEF_LL2_MTU 1560
+#define JUMBO_MTU 9000
+
+#define MIN_MTU 576 /* rfc 793 */
+#define IPV4_HDR_LEN 20
+#define IPV6_HDR_LEN 40
+#define TCP_HDR_LEN 20
+#define TCP_OPTION_LEN 12
+#define VLAN_LEN 4
+
+enum {
+ EP_STATE_IDLE = 0x0,
+ EP_STATE_ACQRCONN_START = 0x1,
+ EP_STATE_ACQRCONN_COMPL = 0x2,
+ EP_STATE_OFLDCONN_START = 0x4,
+ EP_STATE_OFLDCONN_COMPL = 0x8,
+ EP_STATE_DISCONN_START = 0x10,
+ EP_STATE_DISCONN_COMPL = 0x20,
+ EP_STATE_CLEANUP_START = 0x40,
+ EP_STATE_CLEANUP_CMPL = 0x80,
+ EP_STATE_TCP_FIN_RCVD = 0x100,
+ EP_STATE_TCP_RST_RCVD = 0x200,
+ EP_STATE_LOGOUT_SENT = 0x400,
+ EP_STATE_LOGOUT_RESP_RCVD = 0x800,
+ EP_STATE_CLEANUP_FAILED = 0x1000,
+ EP_STATE_OFLDCONN_FAILED = 0x2000,
+ EP_STATE_CONNECT_FAILED = 0x4000,
+ EP_STATE_DISCONN_TIMEDOUT = 0x8000,
+};
+
+struct qedi_conn;
+
+struct qedi_endpoint {
+ struct qedi_ctx *qedi;
+ u32 dst_addr[4];
+ u32 src_addr[4];
+ u16 src_port;
+ u16 dst_port;
+ u16 vlan_id;
+ u16 pmtu;
+ u8 src_mac[ETH_ALEN];
+ u8 dst_mac[ETH_ALEN];
+ u8 ip_type;
+ int state;
+ wait_queue_head_t ofld_wait;
+ wait_queue_head_t tcp_ofld_wait;
+ u32 iscsi_cid;
+ /* identifier of the connection from qed */
+ u32 handle;
+ u32 fw_cid;
+ void __iomem *p_doorbell;
+
+ /* Send queue management */
+ struct iscsi_wqe *sq;
+ dma_addr_t sq_dma;
+
+ u16 sq_prod_idx;
+ u16 fw_sq_prod_idx;
+ u16 sq_con_idx;
+ u32 sq_mem_size;
+
+ void *sq_pbl;
+ dma_addr_t sq_pbl_dma;
+ u32 sq_pbl_size;
+ struct qedi_conn *conn;
+ struct work_struct offload_work;
+};
+
+#define QEDI_SQ_WQES_MIN 16
+
+struct qedi_io_bdt {
+ struct iscsi_sge *sge_tbl;
+ dma_addr_t sge_tbl_dma;
+ u16 sge_valid;
+};
+
+/**
+ * struct generic_pdu_resc - login pdu resource structure
+ *
+ * @req_buf: driver buffer used to stage payload associated with
+ * the login request
+ * @req_dma_addr: dma address for iscsi login request payload buffer
+ * @req_buf_size: actual login request payload length
+ * @req_wr_ptr: pointer into login request buffer when next data is
+ * to be written
+ * @resp_hdr: iscsi header where iscsi login response header is to
+ * be recreated
+ * @resp_buf: buffer to stage login response payload
+ * @resp_dma_addr: login response payload buffer dma address
+ * @resp_buf_size: login response paylod length
+ * @resp_wr_ptr: pointer into login response buffer when next data is
+ * to be written
+ * @req_bd_tbl: iscsi login request payload BD table
+ * @req_bd_dma: login request BD table dma address
+ * @resp_bd_tbl: iscsi login response payload BD table
+ * @resp_bd_dma: login request BD table dma address
+ *
+ * following structure defines buffer info for generic pdus such as iSCSI Login,
+ * Logout and NOP
+ */
+struct generic_pdu_resc {
+ char *req_buf;
+ dma_addr_t req_dma_addr;
+ u32 req_buf_size;
+ char *req_wr_ptr;
+ struct iscsi_hdr resp_hdr;
+ char *resp_buf;
+ dma_addr_t resp_dma_addr;
+ u32 resp_buf_size;
+ char *resp_wr_ptr;
+ char *req_bd_tbl;
+ dma_addr_t req_bd_dma;
+ char *resp_bd_tbl;
+ dma_addr_t resp_bd_dma;
+};
+
+struct qedi_conn {
+ struct iscsi_cls_conn *cls_conn;
+ struct qedi_ctx *qedi;
+ struct qedi_endpoint *ep;
+ struct list_head active_cmd_list;
+ spinlock_t list_lock; /* internal conn lock */
+ u32 active_cmd_count;
+ u32 cmd_cleanup_req;
+ u32 cmd_cleanup_cmpl;
+
+ u32 iscsi_conn_id;
+ int itt;
+ int abrt_conn;
+#define QEDI_CID_RESERVED 0x5AFF
+ u32 fw_cid;
+ /*
+ * Buffer for login negotiation process
+ */
+ struct generic_pdu_resc gen_pdu;
+
+ struct list_head tmf_work_list;
+ wait_queue_head_t wait_queue;
+ spinlock_t tmf_work_lock; /* tmf work lock */
+ unsigned long flags;
+#define QEDI_CONN_FW_CLEANUP 1
+};
+
+struct qedi_cmd {
+ struct list_head io_cmd;
+ bool io_cmd_in_list;
+ struct iscsi_hdr hdr;
+ struct qedi_conn *conn;
+ struct scsi_cmnd *scsi_cmd;
+ struct scatterlist *sg;
+ struct qedi_io_bdt io_tbl;
+ struct iscsi_task_context request;
+ unsigned char *sense_buffer;
+ dma_addr_t sense_buffer_dma;
+ u16 task_id;
+
+ /* field populated for tmf work queue */
+ struct iscsi_task *task;
+ struct work_struct tmf_work;
+ int state;
+#define CLEANUP_WAIT 1
+#define CLEANUP_RECV 2
+#define CLEANUP_WAIT_FAILED 3
+#define CLEANUP_NOT_REQUIRED 4
+#define LUN_RESET_RESPONSE_RECEIVED 5
+#define RESPONSE_RECEIVED 6
+
+ int type;
+#define TYPEIO 1
+#define TYPERESET 2
+
+ struct qedi_work_map *list_tmf_work;
+ /* slowpath management */
+ bool use_slowpath;
+
+ struct iscsi_tm_rsp *tmf_resp_buf;
+ struct qedi_work cqe_work;
+};
+
+struct qedi_work_map {
+ struct list_head list;
+ struct qedi_cmd *qedi_cmd;
+ int rtid;
+
+ int state;
+#define QEDI_WORK_QUEUED 1
+#define QEDI_WORK_SCHEDULED 2
+#define QEDI_WORK_EXIT 3
+
+ struct work_struct *ptr_tmf_work;
+};
+
+#define qedi_set_itt(task_id, itt) ((u32)((task_id & 0xffff) | (itt << 16)))
+#define qedi_get_itt(cqe) (cqe.iscsi_hdr.cmd.itt >> 16)
+
+#define QEDI_OFLD_WAIT_STATE(q) ((q)->state == EP_STATE_OFLDCONN_FAILED || \
+ (q)->state == EP_STATE_OFLDCONN_COMPL)
+
+#endif /* _QEDI_ISCSI_H_ */
diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c
index ef309c6..d3f47dd 100644
--- a/drivers/scsi/qedi/qedi_main.c
+++ b/drivers/scsi/qedi/qedi_main.c
@@ -27,6 +27,8 @@
#include <scsi/scsi.h>
#include "qedi.h"
+#include "qedi_gbl.h"
+#include "qedi_iscsi.h"
static uint fw_debug;
module_param(fw_debug, uint, S_IRUGO | S_IWUSR);
@@ -1416,6 +1418,141 @@ static int qedi_alloc_global_queues(struct qedi_ctx *qedi)
return status;
}
+int qedi_alloc_sq(struct qedi_ctx *qedi, struct qedi_endpoint *ep)
+{
+ int rval = 0;
+ u32 *pbl;
+ dma_addr_t page;
+ int num_pages;
+
+ if (!ep)
+ return -EIO;
+
+ /* Calculate appropriate queue and PBL sizes */
+ ep->sq_mem_size = QEDI_SQ_SIZE * sizeof(struct iscsi_wqe);
+ ep->sq_mem_size += QEDI_PAGE_SIZE - 1;
+
+ ep->sq_pbl_size = (ep->sq_mem_size / QEDI_PAGE_SIZE) * sizeof(void *);
+ ep->sq_pbl_size = ep->sq_pbl_size + QEDI_PAGE_SIZE;
+
+ ep->sq = dma_alloc_coherent(&qedi->pdev->dev, ep->sq_mem_size,
+ &ep->sq_dma, GFP_KERNEL);
+ if (!ep->sq) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "Could not allocate send queue.\n");
+ rval = -ENOMEM;
+ goto out;
+ }
+ memset(ep->sq, 0, ep->sq_mem_size);
+
+ ep->sq_pbl = dma_alloc_coherent(&qedi->pdev->dev, ep->sq_pbl_size,
+ &ep->sq_pbl_dma, GFP_KERNEL);
+ if (!ep->sq_pbl) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "Could not allocate send queue PBL.\n");
+ rval = -ENOMEM;
+ goto out_free_sq;
+ }
+ memset(ep->sq_pbl, 0, ep->sq_pbl_size);
+
+ /* Create PBL */
+ num_pages = ep->sq_mem_size / QEDI_PAGE_SIZE;
+ page = ep->sq_dma;
+ pbl = (u32 *)ep->sq_pbl;
+
+ while (num_pages--) {
+ *pbl = (u32)page;
+ pbl++;
+ *pbl = (u32)((u64)page >> 32);
+ pbl++;
+ page += QEDI_PAGE_SIZE;
+ }
+
+ return rval;
+
+out_free_sq:
+ dma_free_coherent(&qedi->pdev->dev, ep->sq_mem_size, ep->sq,
+ ep->sq_dma);
+out:
+ return rval;
+}
+
+void qedi_free_sq(struct qedi_ctx *qedi, struct qedi_endpoint *ep)
+{
+ if (ep->sq_pbl)
+ dma_free_coherent(&qedi->pdev->dev, ep->sq_pbl_size, ep->sq_pbl,
+ ep->sq_pbl_dma);
+ if (ep->sq)
+ dma_free_coherent(&qedi->pdev->dev, ep->sq_mem_size, ep->sq,
+ ep->sq_dma);
+}
+
+int qedi_get_task_idx(struct qedi_ctx *qedi)
+{
+ s16 tmp_idx;
+
+again:
+ tmp_idx = find_first_zero_bit(qedi->task_idx_map,
+ MAX_ISCSI_TASK_ENTRIES);
+
+ if (tmp_idx >= MAX_ISCSI_TASK_ENTRIES) {
+ QEDI_ERR(&qedi->dbg_ctx, "FW task context pool is full.\n");
+ tmp_idx = -1;
+ goto err_idx;
+ }
+
+ if (test_and_set_bit(tmp_idx, qedi->task_idx_map))
+ goto again;
+
+err_idx:
+ return tmp_idx;
+}
+
+void qedi_clear_task_idx(struct qedi_ctx *qedi, int idx)
+{
+ if (!test_and_clear_bit(idx, qedi->task_idx_map)) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "FW task context, already cleared, tid=0x%x\n", idx);
+ WARN_ON(1);
+ }
+}
+
+void qedi_update_itt_map(struct qedi_ctx *qedi, u32 tid, u32 proto_itt,
+ struct qedi_cmd *cmd)
+{
+ qedi->itt_map[tid].itt = proto_itt;
+ qedi->itt_map[tid].p_cmd = cmd;
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "update itt map tid=0x%x, with proto itt=0x%x\n", tid,
+ qedi->itt_map[tid].itt);
+}
+
+void qedi_get_task_tid(struct qedi_ctx *qedi, u32 itt, s16 *tid)
+{
+ u16 i;
+
+ for (i = 0; i < MAX_ISCSI_TASK_ENTRIES; i++) {
+ if (qedi->itt_map[i].itt == itt) {
+ *tid = i;
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "Ref itt=0x%x, found at tid=0x%x\n",
+ itt, *tid);
+ return;
+ }
+ }
+
+ WARN_ON(1);
+}
+
+void qedi_get_proto_itt(struct qedi_ctx *qedi, u32 tid, u32 *proto_itt)
+{
+ *proto_itt = qedi->itt_map[tid].itt;
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
+ "Get itt map tid [0x%x with proto itt[0x%x]",
+ tid, *proto_itt);
+}
+
struct qedi_cmd *qedi_get_cmd_from_tid(struct qedi_ctx *qedi, u32 tid)
{
struct qedi_cmd *cmd = NULL;
@@ -1554,6 +1691,26 @@ static int qedi_cpu_callback(struct notifier_block *nfb,
.notifier_call = qedi_cpu_callback,
};
+void qedi_reset_host_mtu(struct qedi_ctx *qedi, u16 mtu)
+{
+ struct qed_ll2_params params;
+
+ qedi_recover_all_conns(qedi);
+
+ qedi_ops->ll2->stop(qedi->cdev);
+ qedi_ll2_free_skbs(qedi);
+
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, "old MTU %u, new MTU %u\n",
+ qedi->ll2_mtu, mtu);
+ memset(¶ms, 0, sizeof(params));
+ qedi->ll2_mtu = mtu;
+ params.mtu = qedi->ll2_mtu + IPV6_HDR_LEN + TCP_HDR_LEN;
+ params.drop_ttl0_packets = 0;
+ params.rx_vlan_stripping = 1;
+ ether_addr_copy(params.ll2_mac_address, qedi->dev_info.common.hw_mac);
+ qedi_ops->ll2->start(qedi->cdev, ¶ms);
+}
+
static void __qedi_remove(struct pci_dev *pdev, int mode)
{
struct qedi_ctx *qedi = pci_get_drvdata(pdev);
@@ -1918,6 +2075,13 @@ static int __init qedi_init(void)
qedi_dbg_init("qedi");
#endif
+ qedi_scsi_transport = iscsi_register_transport(&qedi_iscsi_transport);
+ if (!qedi_scsi_transport) {
+ QEDI_ERR(NULL, "Could not register qedi transport");
+ rc = -ENOMEM;
+ goto exit_qedi_init_1;
+ }
+
register_hotcpu_notifier(&qedi_cpu_notifier);
ret = pci_register_driver(&qedi_pci_driver);
@@ -1940,6 +2104,7 @@ static int __init qedi_init(void)
return rc;
exit_qedi_init_2:
+ iscsi_unregister_transport(&qedi_iscsi_transport);
exit_qedi_init_1:
#ifdef CONFIG_DEBUG_FS
qedi_dbg_exit();
@@ -1958,6 +2123,7 @@ static void __exit qedi_cleanup(void)
pci_unregister_driver(&qedi_pci_driver);
unregister_hotcpu_notifier(&qedi_cpu_notifier);
+ iscsi_unregister_transport(&qedi_iscsi_transport);
#ifdef CONFIG_DEBUG_FS
qedi_dbg_exit();
--
1.8.3.1
^ permalink raw reply related
* [PATCH v2 4/6] qedi: Add LL2 iSCSI interface for offload iSCSI.
From: Manish Rangankar @ 2016-11-08 6:57 UTC (permalink / raw)
To: martin.petersen, lduncan, cleech
Cc: linux-scsi, netdev, QLogic-Storage-Upstream, Yuval.Mintz
In-Reply-To: <1478588223-16183-1-git-send-email-manish.rangankar@cavium.com>
This patch adds support for iscsiuio interface using Light L2 (LL2) qed
interface.
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
---
drivers/scsi/qedi/qedi.h | 73 +++++++++
drivers/scsi/qedi/qedi_main.c | 357 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 430 insertions(+)
diff --git a/drivers/scsi/qedi/qedi.h b/drivers/scsi/qedi/qedi.h
index 92136a3..e00c141 100644
--- a/drivers/scsi/qedi/qedi.h
+++ b/drivers/scsi/qedi/qedi.h
@@ -21,6 +21,7 @@
#include <linux/qed/qed_if.h>
#include "qedi_dbg.h"
#include <linux/qed/qed_iscsi_if.h>
+#include <linux/qed/qed_ll2_if.h>
#include "qedi_version.h"
#define QEDI_MODULE_NAME "qedi"
@@ -54,6 +55,78 @@
#define QEDI_LOCAL_PORT_MAX 61024
#define QEDI_LOCAL_PORT_RANGE (QEDI_LOCAL_PORT_MAX - QEDI_LOCAL_PORT_MIN)
#define QEDI_LOCAL_PORT_INVALID 0xffff
+#define TX_RX_RING 16
+#define RX_RING (TX_RX_RING - 1)
+#define LL2_SINGLE_BUF_SIZE 0x400
+#define QEDI_PAGE_SIZE 4096
+#define QEDI_PAGE_ALIGN(addr) ALIGN(addr, QEDI_PAGE_SIZE)
+#define QEDI_PAGE_MASK (~((QEDI_PAGE_SIZE) - 1))
+
+#define QEDI_PAGE_SIZE 4096
+#define QEDI_PATH_HANDLE 0xFE0000000UL
+
+struct qedi_uio_ctrl {
+ /* meta data */
+ u32 uio_hsi_version;
+
+ /* user writes */
+ u32 host_tx_prod;
+ u32 host_rx_cons;
+ u32 host_rx_bd_cons;
+ u32 host_tx_pkt_len;
+ u32 host_rx_cons_cnt;
+
+ /* driver writes */
+ u32 hw_tx_cons;
+ u32 hw_rx_prod;
+ u32 hw_rx_bd_prod;
+ u32 hw_rx_prod_cnt;
+
+ /* other */
+ u8 mac_addr[6];
+ u8 reserve[2];
+};
+
+struct qedi_rx_bd {
+ u32 rx_pkt_index;
+ u32 rx_pkt_len;
+ u16 vlan_id;
+};
+
+#define QEDI_RX_DESC_CNT (QEDI_PAGE_SIZE / sizeof(struct qedi_rx_bd))
+#define QEDI_MAX_RX_DESC_CNT (QEDI_RX_DESC_CNT - 1)
+#define QEDI_NUM_RX_BD (QEDI_RX_DESC_CNT * 1)
+#define QEDI_MAX_RX_BD (QEDI_NUM_RX_BD - 1)
+
+#define QEDI_NEXT_RX_IDX(x) ((((x) & (QEDI_MAX_RX_DESC_CNT)) == \
+ (QEDI_MAX_RX_DESC_CNT - 1)) ? \
+ (x) + 2 : (x) + 1)
+
+struct qedi_uio_dev {
+ struct uio_info qedi_uinfo;
+ u32 uio_dev;
+ struct list_head list;
+
+ u32 ll2_ring_size;
+ void *ll2_ring;
+
+ u32 ll2_buf_size;
+ void *ll2_buf;
+
+ void *rx_pkt;
+ void *tx_pkt;
+
+ struct qedi_ctx *qedi;
+ struct pci_dev *pdev;
+ void *uctrl;
+};
+
+/* List to maintain the skb pointers */
+struct skb_work_list {
+ struct list_head list;
+ struct sk_buff *skb;
+ u16 vlan_id;
+};
/* Queue sizes in number of elements */
#define QEDI_SQ_SIZE MAX_OUSTANDING_TASKS_PER_CON
diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c
index 5845dc9..ef309c6 100644
--- a/drivers/scsi/qedi/qedi_main.c
+++ b/drivers/scsi/qedi/qedi_main.c
@@ -45,10 +45,13 @@
static struct scsi_transport_template *qedi_scsi_transport;
static struct pci_driver qedi_pci_driver;
static DEFINE_PER_CPU(struct qedi_percpu_s, qedi_percpu);
+static LIST_HEAD(qedi_udev_list);
/* Static function declaration */
static int qedi_alloc_global_queues(struct qedi_ctx *qedi);
static void qedi_free_global_queues(struct qedi_ctx *qedi);
static struct qedi_cmd *qedi_get_cmd_from_tid(struct qedi_ctx *qedi, u32 tid);
+static void qedi_reset_uio_rings(struct qedi_uio_dev *udev);
+static void qedi_ll2_free_skbs(struct qedi_ctx *qedi);
static int qedi_iscsi_event_cb(void *context, u8 fw_event_code, void *fw_handle)
{
@@ -113,6 +116,224 @@ static int qedi_iscsi_event_cb(void *context, u8 fw_event_code, void *fw_handle)
return rval;
}
+static int qedi_uio_open(struct uio_info *uinfo, struct inode *inode)
+{
+ struct qedi_uio_dev *udev = uinfo->priv;
+ struct qedi_ctx *qedi = udev->qedi;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ if (udev->uio_dev != -1)
+ return -EBUSY;
+
+ rtnl_lock();
+ udev->uio_dev = iminor(inode);
+ qedi_reset_uio_rings(udev);
+ set_bit(UIO_DEV_OPENED, &qedi->flags);
+ rtnl_unlock();
+
+ return 0;
+}
+
+static int qedi_uio_close(struct uio_info *uinfo, struct inode *inode)
+{
+ struct qedi_uio_dev *udev = uinfo->priv;
+ struct qedi_ctx *qedi = udev->qedi;
+
+ udev->uio_dev = -1;
+ clear_bit(UIO_DEV_OPENED, &qedi->flags);
+ qedi_ll2_free_skbs(qedi);
+ return 0;
+}
+
+static void __qedi_free_uio_rings(struct qedi_uio_dev *udev)
+{
+ if (udev->ll2_ring) {
+ free_page((unsigned long)udev->ll2_ring);
+ udev->ll2_ring = NULL;
+ }
+
+ if (udev->ll2_buf) {
+ free_pages((unsigned long)udev->ll2_buf, 2);
+ udev->ll2_buf = NULL;
+ }
+}
+
+static void __qedi_free_uio(struct qedi_uio_dev *udev)
+{
+ uio_unregister_device(&udev->qedi_uinfo);
+
+ __qedi_free_uio_rings(udev);
+
+ pci_dev_put(udev->pdev);
+ kfree(udev->uctrl);
+ kfree(udev);
+}
+
+static void qedi_free_uio(struct qedi_uio_dev *udev)
+{
+ if (!udev)
+ return;
+
+ list_del_init(&udev->list);
+ __qedi_free_uio(udev);
+}
+
+static void qedi_reset_uio_rings(struct qedi_uio_dev *udev)
+{
+ struct qedi_ctx *qedi = NULL;
+ struct qedi_uio_ctrl *uctrl = NULL;
+
+ qedi = udev->qedi;
+ uctrl = udev->uctrl;
+
+ spin_lock_bh(&qedi->ll2_lock);
+ uctrl->host_rx_cons = 0;
+ uctrl->hw_rx_prod = 0;
+ uctrl->hw_rx_bd_prod = 0;
+ uctrl->host_rx_bd_cons = 0;
+
+ memset(udev->ll2_ring, 0, udev->ll2_ring_size);
+ memset(udev->ll2_buf, 0, udev->ll2_buf_size);
+ spin_unlock_bh(&qedi->ll2_lock);
+}
+
+static int __qedi_alloc_uio_rings(struct qedi_uio_dev *udev)
+{
+ int rc = 0;
+
+ if (udev->ll2_ring || udev->ll2_buf)
+ return rc;
+
+ /* Allocating memory for LL2 ring */
+ udev->ll2_ring_size = QEDI_PAGE_SIZE;
+ udev->ll2_ring = (void *)get_zeroed_page(GFP_KERNEL | __GFP_COMP);
+ if (!udev->ll2_ring) {
+ rc = -ENOMEM;
+ goto exit_alloc_ring;
+ }
+
+ /* Allocating memory for Tx/Rx pkt buffer */
+ udev->ll2_buf_size = TX_RX_RING * LL2_SINGLE_BUF_SIZE;
+ udev->ll2_buf_size = QEDI_PAGE_ALIGN(udev->ll2_buf_size);
+ udev->ll2_buf = (void *)__get_free_pages(GFP_KERNEL | __GFP_COMP |
+ __GFP_ZERO, 2);
+ if (!udev->ll2_buf) {
+ rc = -ENOMEM;
+ goto exit_alloc_buf;
+ }
+ return rc;
+
+exit_alloc_buf:
+ free_page((unsigned long)udev->ll2_ring);
+ udev->ll2_ring = NULL;
+exit_alloc_ring:
+ return rc;
+}
+
+static int qedi_alloc_uio_rings(struct qedi_ctx *qedi)
+{
+ struct qedi_uio_dev *udev = NULL;
+ struct qedi_uio_ctrl *uctrl = NULL;
+ int rc = 0;
+
+ list_for_each_entry(udev, &qedi_udev_list, list) {
+ if (udev->pdev == qedi->pdev) {
+ udev->qedi = qedi;
+ if (__qedi_alloc_uio_rings(udev)) {
+ udev->qedi = NULL;
+ return -ENOMEM;
+ }
+ qedi->udev = udev;
+ return 0;
+ }
+ }
+
+ udev = kzalloc(sizeof(*udev), GFP_KERNEL);
+ if (!udev) {
+ rc = -ENOMEM;
+ goto err_udev;
+ }
+
+ uctrl = kzalloc(sizeof(*uctrl), GFP_KERNEL);
+ if (!uctrl) {
+ rc = -ENOMEM;
+ goto err_uctrl;
+ }
+
+ udev->uio_dev = -1;
+
+ udev->qedi = qedi;
+ udev->pdev = qedi->pdev;
+ udev->uctrl = uctrl;
+
+ rc = __qedi_alloc_uio_rings(udev);
+ if (rc)
+ goto err_uio_rings;
+
+ list_add(&udev->list, &qedi_udev_list);
+
+ pci_dev_get(udev->pdev);
+ qedi->udev = udev;
+
+ udev->tx_pkt = udev->ll2_buf;
+ udev->rx_pkt = udev->ll2_buf + LL2_SINGLE_BUF_SIZE;
+ return 0;
+
+ err_uio_rings:
+ kfree(uctrl);
+ err_uctrl:
+ kfree(udev);
+ err_udev:
+ return -ENOMEM;
+}
+
+static int qedi_init_uio(struct qedi_ctx *qedi)
+{
+ struct qedi_uio_dev *udev = qedi->udev;
+ struct uio_info *uinfo;
+ int ret = 0;
+
+ if (!udev)
+ return -ENOMEM;
+
+ uinfo = &udev->qedi_uinfo;
+
+ uinfo->mem[0].addr = (unsigned long)udev->uctrl;
+ uinfo->mem[0].size = sizeof(struct qedi_uio_ctrl);
+ uinfo->mem[0].memtype = UIO_MEM_LOGICAL;
+
+ uinfo->mem[1].addr = (unsigned long)udev->ll2_ring;
+ uinfo->mem[1].size = udev->ll2_ring_size;
+ uinfo->mem[1].memtype = UIO_MEM_LOGICAL;
+
+ uinfo->mem[2].addr = (unsigned long)udev->ll2_buf;
+ uinfo->mem[2].size = udev->ll2_buf_size;
+ uinfo->mem[2].memtype = UIO_MEM_LOGICAL;
+
+ uinfo->name = "qedi_uio";
+ uinfo->version = QEDI_MODULE_VERSION;
+ uinfo->irq = UIO_IRQ_CUSTOM;
+
+ uinfo->open = qedi_uio_open;
+ uinfo->release = qedi_uio_close;
+
+ if (udev->uio_dev == -1) {
+ if (!uinfo->priv) {
+ uinfo->priv = udev;
+
+ ret = uio_register_device(&udev->pdev->dev, uinfo);
+ if (ret) {
+ QEDI_ERR(&qedi->dbg_ctx,
+ "UIO registration failed\n");
+ }
+ }
+ }
+
+ return ret;
+}
+
static int qedi_alloc_and_init_sb(struct qedi_ctx *qedi,
struct qed_sb_info *sb_info, u16 sb_id)
{
@@ -442,6 +663,142 @@ static struct qedi_ctx *qedi_host_alloc(struct pci_dev *pdev)
return qedi;
}
+static int qedi_ll2_rx(void *cookie, struct sk_buff *skb, u32 arg1, u32 arg2)
+{
+ struct qedi_ctx *qedi = (struct qedi_ctx *)cookie;
+ struct qedi_uio_dev *udev;
+ struct qedi_uio_ctrl *uctrl;
+ struct skb_work_list *work;
+ u32 prod;
+
+ if (!qedi) {
+ QEDI_ERR(NULL, "qedi is NULL\n");
+ return -1;
+ }
+
+ if (!test_bit(UIO_DEV_OPENED, &qedi->flags)) {
+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_UIO,
+ "UIO DEV is not opened\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ udev = qedi->udev;
+ uctrl = udev->uctrl;
+
+ work = kzalloc(sizeof(*work), GFP_ATOMIC);
+ if (!work) {
+ QEDI_WARN(&qedi->dbg_ctx,
+ "Could not allocate work so dropping frame.\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ INIT_LIST_HEAD(&work->list);
+ work->skb = skb;
+
+ if (skb_vlan_tag_present(skb))
+ work->vlan_id = skb_vlan_tag_get(skb);
+
+ if (work->vlan_id)
+ __vlan_insert_tag(work->skb, htons(ETH_P_8021Q), work->vlan_id);
+
+ spin_lock_bh(&qedi->ll2_lock);
+ list_add_tail(&work->list, &qedi->ll2_skb_list);
+
+ ++uctrl->hw_rx_prod_cnt;
+ prod = (uctrl->hw_rx_prod + 1) % RX_RING;
+ if (prod != uctrl->host_rx_cons) {
+ uctrl->hw_rx_prod = prod;
+ spin_unlock_bh(&qedi->ll2_lock);
+ wake_up_process(qedi->ll2_recv_thread);
+ return 0;
+ }
+
+ spin_unlock_bh(&qedi->ll2_lock);
+ return 0;
+}
+
+/* map this skb to iscsiuio mmaped region */
+static int qedi_ll2_process_skb(struct qedi_ctx *qedi, struct sk_buff *skb,
+ u16 vlan_id)
+{
+ struct qedi_uio_dev *udev = NULL;
+ struct qedi_uio_ctrl *uctrl = NULL;
+ struct qedi_rx_bd rxbd;
+ struct qedi_rx_bd *p_rxbd;
+ u32 rx_bd_prod;
+ void *pkt;
+ int len = 0;
+
+ if (!qedi) {
+ QEDI_ERR(NULL, "qedi is NULL\n");
+ return -1;
+ }
+
+ udev = qedi->udev;
+ uctrl = udev->uctrl;
+ pkt = udev->rx_pkt + (uctrl->hw_rx_prod * LL2_SINGLE_BUF_SIZE);
+ len = min_t(u32, skb->len, (u32)LL2_SINGLE_BUF_SIZE);
+ memcpy(pkt, skb->data, len);
+
+ memset(&rxbd, 0, sizeof(rxbd));
+ rxbd.rx_pkt_index = uctrl->hw_rx_prod;
+ rxbd.rx_pkt_len = len;
+ rxbd.vlan_id = vlan_id;
+
+ uctrl->hw_rx_bd_prod = (uctrl->hw_rx_bd_prod + 1) % QEDI_NUM_RX_BD;
+ rx_bd_prod = uctrl->hw_rx_bd_prod;
+ p_rxbd = (struct qedi_rx_bd *)udev->ll2_ring;
+ p_rxbd += rx_bd_prod;
+
+ memcpy(p_rxbd, &rxbd, sizeof(rxbd));
+
+ /* notify the iscsiuio about new packet */
+ uio_event_notify(&udev->qedi_uinfo);
+
+ return 0;
+}
+
+static void qedi_ll2_free_skbs(struct qedi_ctx *qedi)
+{
+ struct skb_work_list *work, *work_tmp;
+
+ spin_lock_bh(&qedi->ll2_lock);
+ list_for_each_entry_safe(work, work_tmp, &qedi->ll2_skb_list, list) {
+ list_del(&work->list);
+ if (work->skb)
+ kfree_skb(work->skb);
+ kfree(work);
+ }
+ spin_unlock_bh(&qedi->ll2_lock);
+}
+
+static int qedi_ll2_recv_thread(void *arg)
+{
+ struct qedi_ctx *qedi = (struct qedi_ctx *)arg;
+ struct skb_work_list *work, *work_tmp;
+
+ set_user_nice(current, -20);
+
+ while (!kthread_should_stop()) {
+ spin_lock_bh(&qedi->ll2_lock);
+ list_for_each_entry_safe(work, work_tmp, &qedi->ll2_skb_list,
+ list) {
+ list_del(&work->list);
+ qedi_ll2_process_skb(qedi, work->skb, work->vlan_id);
+ kfree_skb(work->skb);
+ kfree(work);
+ }
+ set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_bh(&qedi->ll2_lock);
+ schedule();
+ }
+
+ __set_current_state(TASK_RUNNING);
+ return 0;
+}
+
static int qedi_set_iscsi_pf_param(struct qedi_ctx *qedi)
{
u8 num_sq_pages;
--
1.8.3.1
^ permalink raw reply related
* [PATCH v2 2/6] qed: Add iSCSI out of order packet handling.
From: Manish Rangankar @ 2016-11-08 6:56 UTC (permalink / raw)
To: martin.petersen, lduncan, cleech
Cc: linux-scsi, netdev, QLogic-Storage-Upstream, Yuval.Mintz
In-Reply-To: <1478588223-16183-1-git-send-email-manish.rangankar@cavium.com>
From: Yuval Mintz <Yuval.Mintz@cavium.com>
This patch adds out of order packet handling for hardware offloaded
iSCSI. Out of order packet handling requires driver buffer allocation
and assistance.
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com>
---
drivers/net/ethernet/qlogic/qed/Makefile | 2 +-
drivers/net/ethernet/qlogic/qed/qed.h | 1 +
drivers/net/ethernet/qlogic/qed/qed_dev.c | 14 +-
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 503 ++++++++++++++++++++++++++++-
drivers/net/ethernet/qlogic/qed/qed_ll2.h | 9 +
drivers/net/ethernet/qlogic/qed/qed_ooo.c | 501 ++++++++++++++++++++++++++++
drivers/net/ethernet/qlogic/qed/qed_ooo.h | 173 ++++++++++
drivers/net/ethernet/qlogic/qed/qed_roce.c | 1 +
drivers/net/ethernet/qlogic/qed/qed_spq.c | 9 +
9 files changed, 1201 insertions(+), 12 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_ooo.c
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_ooo.h
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile b/drivers/net/ethernet/qlogic/qed/Makefile
index 597e15c..729e437 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -6,4 +6,4 @@ qed-y := qed_cxt.o qed_dev.o qed_hw.o qed_init_fw_funcs.o qed_init_ops.o \
qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
qed-$(CONFIG_QED_LL2) += qed_ll2.o
qed-$(CONFIG_QED_RDMA) += qed_roce.o
-qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o
+qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h b/drivers/net/ethernet/qlogic/qed/qed.h
index 15286c1..85c2c6a 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -392,6 +392,7 @@ struct qed_hwfn {
/* Protocol related */
bool using_ll2;
struct qed_ll2_info *p_ll2_info;
+ struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info *p_rdma_info;
struct qed_iscsi_info *p_iscsi_info;
struct qed_pf_params pf_params;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index e3612be..896429c 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -32,6 +32,7 @@
#include "qed_iscsi.h"
#include "qed_ll2.h"
#include "qed_mcp.h"
+#include "qed_ooo.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"
#include "qed_sriov.h"
@@ -156,8 +157,10 @@ void qed_resc_free(struct qed_dev *cdev)
#ifdef CONFIG_QED_LL2
qed_ll2_free(p_hwfn, p_hwfn->p_ll2_info);
#endif
- if (p_hwfn->hw_info.personality == QED_PCI_ISCSI)
+ if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
qed_iscsi_free(p_hwfn, p_hwfn->p_iscsi_info);
+ qed_ooo_free(p_hwfn, p_hwfn->p_ooo_info);
+ }
qed_iov_free(p_hwfn);
qed_dmae_info_free(p_hwfn);
qed_dcbx_info_free(p_hwfn, p_hwfn->p_dcbx_info);
@@ -415,6 +418,7 @@ int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
int qed_resc_alloc(struct qed_dev *cdev)
{
struct qed_iscsi_info *p_iscsi_info;
+ struct qed_ooo_info *p_ooo_info;
#ifdef CONFIG_QED_LL2
struct qed_ll2_info *p_ll2_info;
#endif
@@ -542,6 +546,10 @@ int qed_resc_alloc(struct qed_dev *cdev)
if (!p_iscsi_info)
goto alloc_no_mem;
p_hwfn->p_iscsi_info = p_iscsi_info;
+ p_ooo_info = qed_ooo_alloc(p_hwfn);
+ if (!p_ooo_info)
+ goto alloc_no_mem;
+ p_hwfn->p_ooo_info = p_ooo_info;
}
/* DMA info initialization */
@@ -596,8 +604,10 @@ void qed_resc_setup(struct qed_dev *cdev)
if (p_hwfn->using_ll2)
qed_ll2_setup(p_hwfn, p_hwfn->p_ll2_info);
#endif
- if (p_hwfn->hw_info.personality == QED_PCI_ISCSI)
+ if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
qed_iscsi_setup(p_hwfn, p_hwfn->p_iscsi_info);
+ qed_ooo_setup(p_hwfn, p_hwfn->p_ooo_info);
+ }
}
}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index e5da1b2..c7a9bbd 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -36,6 +36,7 @@
#include "qed_int.h"
#include "qed_ll2.h"
#include "qed_mcp.h"
+#include "qed_ooo.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"
#include "qed_roce.h"
@@ -540,13 +541,455 @@ static void qed_ll2_rxq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
list_move_tail(&p_pkt->list_entry, &p_rx->free_descq);
- rx_buf_addr = p_pkt->rx_buf_addr;
- cookie = p_pkt->cookie;
+ if (p_ll2_conn->conn_type == QED_LL2_TYPE_ISCSI_OOO) {
+ struct qed_ooo_buffer *p_buffer;
- b_last = list_empty(&p_rx->active_descq);
+ p_buffer = (struct qed_ooo_buffer *)p_pkt->cookie;
+ qed_ooo_put_free_buffer(p_hwfn, p_hwfn->p_ooo_info,
+ p_buffer);
+ } else {
+ rx_buf_addr = p_pkt->rx_buf_addr;
+ cookie = p_pkt->cookie;
+
+ b_last = list_empty(&p_rx->active_descq);
+ }
+ }
+}
+
+#if IS_ENABLED(CONFIG_QEDI)
+static u8 qed_ll2_convert_rx_parse_to_tx_flags(u16 parse_flags)
+{
+ u8 bd_flags = 0;
+
+ if (GET_FIELD(parse_flags, PARSING_AND_ERR_FLAGS_TAG8021QEXIST))
+ SET_FIELD(bd_flags, CORE_TX_BD_FLAGS_VLAN_INSERTION, 1);
+
+ return bd_flags;
+}
+
+static int qed_ll2_lb_rxq_handler(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn)
+{
+ struct qed_ll2_rx_queue *p_rx = &p_ll2_conn->rx_queue;
+ u16 packet_length = 0, parse_flags = 0, vlan = 0;
+ struct qed_ll2_rx_packet *p_pkt = NULL;
+ u32 num_ooo_add_to_peninsula = 0, cid;
+ union core_rx_cqe_union *cqe = NULL;
+ u16 cq_new_idx = 0, cq_old_idx = 0;
+ struct qed_ooo_buffer *p_buffer;
+ struct ooo_opaque *iscsi_ooo;
+ u8 placement_offset = 0;
+ u8 cqe_type;
+
+ cq_new_idx = le16_to_cpu(*p_rx->p_fw_cons);
+ cq_old_idx = qed_chain_get_cons_idx(&p_rx->rcq_chain);
+ if (cq_new_idx == cq_old_idx)
+ return 0;
+
+ while (cq_new_idx != cq_old_idx) {
+ struct core_rx_fast_path_cqe *p_cqe_fp;
+
+ cqe = qed_chain_consume(&p_rx->rcq_chain);
+ cq_old_idx = qed_chain_get_cons_idx(&p_rx->rcq_chain);
+ cqe_type = cqe->rx_cqe_sp.type;
+
+ if (cqe_type != CORE_RX_CQE_TYPE_REGULAR) {
+ DP_NOTICE(p_hwfn,
+ "Got a non-regular LB LL2 completion [type 0x%02x]\n",
+ cqe_type);
+ return -EINVAL;
+ }
+ p_cqe_fp = &cqe->rx_cqe_fp;
+
+ placement_offset = p_cqe_fp->placement_offset;
+ parse_flags = le16_to_cpu(p_cqe_fp->parse_flags.flags);
+ packet_length = le16_to_cpu(p_cqe_fp->packet_length);
+ vlan = le16_to_cpu(p_cqe_fp->vlan);
+ iscsi_ooo = (struct ooo_opaque *)&p_cqe_fp->opaque_data;
+ qed_ooo_save_history_entry(p_hwfn, p_hwfn->p_ooo_info,
+ iscsi_ooo);
+ cid = le32_to_cpu(iscsi_ooo->cid);
+
+ /* Process delete isle first */
+ if (iscsi_ooo->drop_size)
+ qed_ooo_delete_isles(p_hwfn, p_hwfn->p_ooo_info, cid,
+ iscsi_ooo->drop_isle,
+ iscsi_ooo->drop_size);
+
+ if (iscsi_ooo->ooo_opcode == TCP_EVENT_NOP)
+ continue;
+
+ /* Now process create/add/join isles */
+ if (list_empty(&p_rx->active_descq)) {
+ DP_NOTICE(p_hwfn,
+ "LL2 OOO RX chain has no submitted buffers\n");
+ return -EIO;
+ }
+
+ p_pkt = list_first_entry(&p_rx->active_descq,
+ struct qed_ll2_rx_packet, list_entry);
+
+ if ((iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_NEW_ISLE) ||
+ (iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_ISLE_RIGHT) ||
+ (iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_ISLE_LEFT) ||
+ (iscsi_ooo->ooo_opcode == TCP_EVENT_ADD_PEN) ||
+ (iscsi_ooo->ooo_opcode == TCP_EVENT_JOIN)) {
+ if (!p_pkt) {
+ DP_NOTICE(p_hwfn,
+ "LL2 OOO RX packet is not valid\n");
+ return -EIO;
+ }
+ list_del(&p_pkt->list_entry);
+ p_buffer = (struct qed_ooo_buffer *)p_pkt->cookie;
+ p_buffer->packet_length = packet_length;
+ p_buffer->parse_flags = parse_flags;
+ p_buffer->vlan = vlan;
+ p_buffer->placement_offset = placement_offset;
+ qed_chain_consume(&p_rx->rxq_chain);
+ list_add_tail(&p_pkt->list_entry, &p_rx->free_descq);
+
+ switch (iscsi_ooo->ooo_opcode) {
+ case TCP_EVENT_ADD_NEW_ISLE:
+ qed_ooo_add_new_isle(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid,
+ iscsi_ooo->ooo_isle,
+ p_buffer);
+ break;
+ case TCP_EVENT_ADD_ISLE_RIGHT:
+ qed_ooo_add_new_buffer(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid,
+ iscsi_ooo->ooo_isle,
+ p_buffer,
+ QED_OOO_RIGHT_BUF);
+ break;
+ case TCP_EVENT_ADD_ISLE_LEFT:
+ qed_ooo_add_new_buffer(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid,
+ iscsi_ooo->ooo_isle,
+ p_buffer,
+ QED_OOO_LEFT_BUF);
+ break;
+ case TCP_EVENT_JOIN:
+ qed_ooo_add_new_buffer(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid,
+ iscsi_ooo->ooo_isle +
+ 1,
+ p_buffer,
+ QED_OOO_LEFT_BUF);
+ qed_ooo_join_isles(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid, iscsi_ooo->ooo_isle);
+ break;
+ case TCP_EVENT_ADD_PEN:
+ num_ooo_add_to_peninsula++;
+ qed_ooo_put_ready_buffer(p_hwfn,
+ p_hwfn->p_ooo_info,
+ p_buffer, true);
+ break;
+ }
+ } else {
+ DP_NOTICE(p_hwfn,
+ "Unexpected event (%d) TX OOO completion\n",
+ iscsi_ooo->ooo_opcode);
+ }
+ }
+
+ return 0;
+}
+
+static void
+qed_ooo_submit_tx_buffers(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn)
+{
+ struct qed_ooo_buffer *p_buffer;
+ int rc;
+ u16 l4_hdr_offset_w;
+ dma_addr_t first_frag;
+ u16 parse_flags;
+ u8 bd_flags;
+
+ /* Submit Tx buffers here */
+ while ((p_buffer = qed_ooo_get_ready_buffer(p_hwfn,
+ p_hwfn->p_ooo_info))) {
+ l4_hdr_offset_w = 0;
+ bd_flags = 0;
+
+ first_frag = p_buffer->rx_buffer_phys_addr +
+ p_buffer->placement_offset;
+ parse_flags = p_buffer->parse_flags;
+ bd_flags = qed_ll2_convert_rx_parse_to_tx_flags(parse_flags);
+ SET_FIELD(bd_flags, CORE_TX_BD_FLAGS_FORCE_VLAN_MODE, 1);
+ SET_FIELD(bd_flags, CORE_TX_BD_FLAGS_L4_PROTOCOL, 1);
+
+ rc = qed_ll2_prepare_tx_packet(p_hwfn, p_ll2_conn->my_id, 1,
+ p_buffer->vlan, bd_flags,
+ l4_hdr_offset_w,
+ p_ll2_conn->tx_dest, 0,
+ first_frag,
+ p_buffer->packet_length,
+ p_buffer, true);
+ if (rc) {
+ qed_ooo_put_ready_buffer(p_hwfn, p_hwfn->p_ooo_info,
+ p_buffer, false);
+ break;
+ }
+ }
+}
+
+static void
+qed_ooo_submit_rx_buffers(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn)
+{
+ struct qed_ooo_buffer *p_buffer;
+ int rc;
+
+ while ((p_buffer = qed_ooo_get_free_buffer(p_hwfn,
+ p_hwfn->p_ooo_info))) {
+ rc = qed_ll2_post_rx_buffer(p_hwfn,
+ p_ll2_conn->my_id,
+ p_buffer->rx_buffer_phys_addr,
+ 0, p_buffer, true);
+ if (rc) {
+ qed_ooo_put_free_buffer(p_hwfn,
+ p_hwfn->p_ooo_info, p_buffer);
+ break;
+ }
+ }
+}
+
+static int qed_ll2_lb_rxq_completion(struct qed_hwfn *p_hwfn, void *p_cookie)
+{
+ struct qed_ll2_info *p_ll2_conn = (struct qed_ll2_info *)p_cookie;
+ int rc;
+
+ rc = qed_ll2_lb_rxq_handler(p_hwfn, p_ll2_conn);
+ if (rc)
+ return rc;
+
+ qed_ooo_submit_rx_buffers(p_hwfn, p_ll2_conn);
+ qed_ooo_submit_tx_buffers(p_hwfn, p_ll2_conn);
+
+ return 0;
+}
+
+static int qed_ll2_lb_txq_completion(struct qed_hwfn *p_hwfn, void *p_cookie)
+{
+ struct qed_ll2_info *p_ll2_conn = (struct qed_ll2_info *)p_cookie;
+ struct qed_ll2_tx_queue *p_tx = &p_ll2_conn->tx_queue;
+ struct qed_ll2_tx_packet *p_pkt = NULL;
+ struct qed_ooo_buffer *p_buffer;
+ bool b_dont_submit_rx = false;
+ u16 new_idx = 0, num_bds = 0;
+ int rc;
+
+ new_idx = le16_to_cpu(*p_tx->p_fw_cons);
+ num_bds = ((s16)new_idx - (s16)p_tx->bds_idx);
+
+ if (!num_bds)
+ return 0;
+
+ while (num_bds) {
+ if (list_empty(&p_tx->active_descq))
+ return -EINVAL;
+
+ p_pkt = list_first_entry(&p_tx->active_descq,
+ struct qed_ll2_tx_packet, list_entry);
+ if (!p_pkt)
+ return -EINVAL;
+
+ if (p_pkt->bd_used != 1) {
+ DP_NOTICE(p_hwfn,
+ "Unexpectedly many BDs(%d) in TX OOO completion\n",
+ p_pkt->bd_used);
+ return -EINVAL;
+ }
+
+ list_del(&p_pkt->list_entry);
+
+ num_bds--;
+ p_tx->bds_idx++;
+ qed_chain_consume(&p_tx->txq_chain);
+
+ p_buffer = (struct qed_ooo_buffer *)p_pkt->cookie;
+ list_add_tail(&p_pkt->list_entry, &p_tx->free_descq);
+
+ if (b_dont_submit_rx) {
+ qed_ooo_put_free_buffer(p_hwfn, p_hwfn->p_ooo_info,
+ p_buffer);
+ continue;
+ }
+
+ rc = qed_ll2_post_rx_buffer(p_hwfn, p_ll2_conn->my_id,
+ p_buffer->rx_buffer_phys_addr, 0,
+ p_buffer, true);
+ if (rc != 0) {
+ qed_ooo_put_free_buffer(p_hwfn,
+ p_hwfn->p_ooo_info, p_buffer);
+ b_dont_submit_rx = true;
+ }
+ }
+
+ qed_ooo_submit_tx_buffers(p_hwfn, p_ll2_conn);
+
+ return 0;
+}
+
+static int
+qed_ll2_acquire_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_info,
+ u16 rx_num_ooo_buffers, u16 mtu)
+{
+ struct qed_ooo_buffer *p_buf = NULL;
+ void *p_virt;
+ u16 buf_idx;
+ int rc = 0;
+
+ if (p_ll2_info->conn_type != QED_LL2_TYPE_ISCSI_OOO)
+ return rc;
+
+ if (!rx_num_ooo_buffers)
+ return -EINVAL;
+
+ for (buf_idx = 0; buf_idx < rx_num_ooo_buffers; buf_idx++) {
+ p_buf = kzalloc(sizeof(*p_buf), GFP_KERNEL);
+ if (!p_buf) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ p_buf->rx_buffer_size = mtu + 26 + ETH_CACHE_LINE_SIZE;
+ p_buf->rx_buffer_size = (p_buf->rx_buffer_size +
+ ETH_CACHE_LINE_SIZE - 1) &
+ ~(ETH_CACHE_LINE_SIZE - 1);
+ p_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ p_buf->rx_buffer_size,
+ &p_buf->rx_buffer_phys_addr,
+ GFP_KERNEL);
+ if (!p_virt) {
+ kfree(p_buf);
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ p_buf->rx_buffer_virt_addr = p_virt;
+ qed_ooo_put_free_buffer(p_hwfn, p_hwfn->p_ooo_info, p_buf);
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_LL2,
+ "Allocated [%04x] LL2 OOO buffers [each of size 0x%08x]\n",
+ rx_num_ooo_buffers, p_buf->rx_buffer_size);
+
+out:
+ return rc;
+}
+
+static void
+qed_ll2_establish_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn)
+{
+ if (p_ll2_conn->conn_type != QED_LL2_TYPE_ISCSI_OOO)
+ return;
+
+ qed_ooo_release_all_isles(p_hwfn, p_hwfn->p_ooo_info);
+ qed_ooo_submit_rx_buffers(p_hwfn, p_ll2_conn);
+}
+
+static void qed_ll2_release_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn)
+{
+ struct qed_ooo_buffer *p_buffer;
+
+ if (p_ll2_conn->conn_type != QED_LL2_TYPE_ISCSI_OOO)
+ return;
+
+ qed_ooo_release_all_isles(p_hwfn, p_hwfn->p_ooo_info);
+ while ((p_buffer = qed_ooo_get_free_buffer(p_hwfn,
+ p_hwfn->p_ooo_info))) {
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ p_buffer->rx_buffer_size,
+ p_buffer->rx_buffer_virt_addr,
+ p_buffer->rx_buffer_phys_addr);
+ kfree(p_buffer);
}
}
+static void qed_ll2_stop_ooo(struct qed_dev *cdev)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ u8 *handle = &hwfn->pf_params.iscsi_pf_params.ll2_ooo_queue_id;
+
+ DP_VERBOSE(cdev, QED_MSG_STORAGE, "Stopping LL2 OOO queue [%02x]\n",
+ *handle);
+
+ qed_ll2_terminate_connection(hwfn, *handle);
+ qed_ll2_release_connection(hwfn, *handle);
+ *handle = QED_LL2_UNUSED_HANDLE;
+}
+
+static int qed_ll2_start_ooo(struct qed_dev *cdev,
+ struct qed_ll2_params *params)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ u8 *handle = &hwfn->pf_params.iscsi_pf_params.ll2_ooo_queue_id;
+ struct qed_ll2_info *ll2_info;
+ int rc;
+
+ ll2_info = kzalloc(sizeof(*ll2_info), GFP_KERNEL);
+ if (!ll2_info)
+ return -ENOMEM;
+ ll2_info->conn_type = QED_LL2_TYPE_ISCSI_OOO;
+ ll2_info->mtu = params->mtu;
+ ll2_info->rx_drop_ttl0_flg = params->drop_ttl0_packets;
+ ll2_info->rx_vlan_removal_en = params->rx_vlan_stripping;
+ ll2_info->tx_tc = OOO_LB_TC;
+ ll2_info->tx_dest = CORE_TX_DEST_LB;
+
+ rc = qed_ll2_acquire_connection(hwfn, ll2_info,
+ QED_LL2_RX_SIZE, QED_LL2_TX_SIZE,
+ handle);
+ kfree(ll2_info);
+ if (rc) {
+ DP_INFO(cdev, "Failed to acquire LL2 OOO connection\n");
+ goto out;
+ }
+
+ rc = qed_ll2_establish_connection(hwfn, *handle);
+ if (rc) {
+ DP_INFO(cdev, "Failed to establist LL2 OOO connection\n");
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ qed_ll2_release_connection(hwfn, *handle);
+out:
+ *handle = QED_LL2_UNUSED_HANDLE;
+ return rc;
+}
+#else /* IS_ENABLED(CONFIG_QEDI) */
+static int qed_ll2_lb_rxq_completion(struct qed_hwfn *p_hwfn,
+ void *p_cookie) { return -EINVAL; }
+static int qed_ll2_lb_txq_completion(struct qed_hwfn *p_hwfn,
+ void *p_cookie) { return -EINVAL; }
+static inline int
+qed_ll2_acquire_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_info,
+ u16 rx_num_ooo_buffers, u16 mtu) { return 0; }
+static inline void
+qed_ll2_establish_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn) { return; }
+static inline void qed_ll2_release_connection_ooo(struct qed_hwfn *p_hwfn,
+ struct qed_ll2_info *p_ll2_conn) { return; }
+static inline void qed_ll2_stop_ooo(struct qed_dev *cdev) { return; }
+static inline int qed_ll2_start_ooo(struct qed_dev *cdev,
+ struct qed_ll2_params *params) { return -EINVAL; }
+#endif /* IS_ENABLED(CONFIG_QEDI) */
+
static int qed_sp_ll2_rx_queue_start(struct qed_hwfn *p_hwfn,
struct qed_ll2_info *p_ll2_conn,
u8 action_on_error)
@@ -588,7 +1031,8 @@ static int qed_sp_ll2_rx_queue_start(struct qed_hwfn *p_hwfn,
p_ramrod->drop_ttl0_flg = p_ll2_conn->rx_drop_ttl0_flg;
p_ramrod->inner_vlan_removal_en = p_ll2_conn->rx_vlan_removal_en;
p_ramrod->queue_id = p_ll2_conn->queue_id;
- p_ramrod->main_func_queue = 1;
+ p_ramrod->main_func_queue = (conn_type == QED_LL2_TYPE_ISCSI_OOO) ? 0
+ : 1;
if ((IS_MF_DEFAULT(p_hwfn) || IS_MF_SI(p_hwfn)) &&
p_ramrod->main_func_queue && (conn_type != QED_LL2_TYPE_ROCE)) {
@@ -619,6 +1063,11 @@ static int qed_sp_ll2_tx_queue_start(struct qed_hwfn *p_hwfn,
if (!QED_LL2_TX_REGISTERED(p_ll2_conn))
return 0;
+ if (p_ll2_conn->conn_type == QED_LL2_TYPE_ISCSI_OOO)
+ p_ll2_conn->tx_stats_en = 0;
+ else
+ p_ll2_conn->tx_stats_en = 1;
+
/* Get SPQ entry */
memset(&init_data, 0, sizeof(init_data));
init_data.cid = p_ll2_conn->cid;
@@ -636,7 +1085,6 @@ static int qed_sp_ll2_tx_queue_start(struct qed_hwfn *p_hwfn,
p_ramrod->sb_id = cpu_to_le16(qed_int_get_sp_sb_id(p_hwfn));
p_ramrod->sb_index = p_tx->tx_sb_index;
p_ramrod->mtu = cpu_to_le16(p_ll2_conn->mtu);
- p_ll2_conn->tx_stats_en = 1;
p_ramrod->stats_en = p_ll2_conn->tx_stats_en;
p_ramrod->stats_id = p_ll2_conn->tx_stats_id;
@@ -860,9 +1308,19 @@ int qed_ll2_acquire_connection(struct qed_hwfn *p_hwfn,
if (rc)
goto q_allocate_fail;
+ rc = qed_ll2_acquire_connection_ooo(p_hwfn, p_ll2_info,
+ rx_num_desc * 2, p_params->mtu);
+ if (rc)
+ goto q_allocate_fail;
+
/* Register callbacks for the Rx/Tx queues */
- comp_rx_cb = qed_ll2_rxq_completion;
- comp_tx_cb = qed_ll2_txq_completion;
+ if (p_params->conn_type == QED_LL2_TYPE_ISCSI_OOO) {
+ comp_rx_cb = qed_ll2_lb_rxq_completion;
+ comp_tx_cb = qed_ll2_lb_txq_completion;
+ } else {
+ comp_rx_cb = qed_ll2_rxq_completion;
+ comp_tx_cb = qed_ll2_txq_completion;
+ }
if (rx_num_desc) {
qed_int_register_cb(p_hwfn, comp_rx_cb,
@@ -975,6 +1433,8 @@ int qed_ll2_establish_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
if (p_hwfn->hw_info.personality != QED_PCI_ETH_ROCE)
qed_wr(p_hwfn, p_hwfn->p_main_ptt, PRS_REG_USE_LIGHT_L2, 1);
+ qed_ll2_establish_connection_ooo(p_hwfn, p_ll2_conn);
+
return rc;
}
@@ -1212,6 +1672,7 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
u16 vlan,
u8 bd_flags,
u16 l4_hdr_offset_w,
+ enum qed_ll2_tx_dest e_tx_dest,
enum qed_ll2_roce_flavor_type qed_roce_flavor,
dma_addr_t first_frag,
u16 first_frag_len, void *cookie, u8 notify_fw)
@@ -1221,6 +1682,7 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
enum core_roce_flavor_type roce_flavor;
struct qed_ll2_tx_queue *p_tx;
struct qed_chain *p_tx_chain;
+ enum core_tx_dest tx_dest;
unsigned long flags;
int rc = 0;
@@ -1251,6 +1713,8 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
goto out;
}
+ tx_dest = e_tx_dest == QED_LL2_TX_DEST_NW ? CORE_TX_DEST_NW :
+ CORE_TX_DEST_LB;
if (qed_roce_flavor == QED_LL2_ROCE) {
roce_flavor = CORE_ROCE;
} else if (qed_roce_flavor == QED_LL2_RROCE) {
@@ -1265,7 +1729,7 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
num_of_bds, first_frag,
first_frag_len, cookie, notify_fw);
qed_ll2_prepare_tx_packet_set_bd(p_hwfn, p_ll2_conn, p_curp,
- num_of_bds, CORE_TX_DEST_NW,
+ num_of_bds, tx_dest,
vlan, bd_flags, l4_hdr_offset_w,
roce_flavor,
first_frag, first_frag_len);
@@ -1340,6 +1804,9 @@ int qed_ll2_terminate_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
qed_ll2_rxq_flush(p_hwfn, connection_handle);
}
+ if (p_ll2_conn->conn_type == QED_LL2_TYPE_ISCSI_OOO)
+ qed_ooo_release_all_isles(p_hwfn, p_hwfn->p_ooo_info);
+
return rc;
}
@@ -1370,6 +1837,8 @@ void qed_ll2_release_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
qed_cxt_release_cid(p_hwfn, p_ll2_conn->cid);
+ qed_ll2_release_connection_ooo(p_hwfn, p_ll2_conn);
+
mutex_lock(&p_ll2_conn->mutex);
p_ll2_conn->b_active = false;
mutex_unlock(&p_ll2_conn->mutex);
@@ -1612,6 +2081,17 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
goto release_terminate;
}
+ if (cdev->hwfns[0].hw_info.personality == QED_PCI_ISCSI &&
+ cdev->hwfns[0].pf_params.iscsi_pf_params.ooo_enable) {
+ DP_VERBOSE(cdev, QED_MSG_STORAGE, "Starting OOO LL2 queue\n");
+ rc = qed_ll2_start_ooo(cdev, params);
+ if (rc) {
+ DP_INFO(cdev,
+ "Failed to initialize the OOO LL2 queue\n");
+ goto release_terminate;
+ }
+ }
+
p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
if (!p_ptt) {
DP_INFO(cdev, "Failed to acquire PTT\n");
@@ -1661,6 +2141,10 @@ static int qed_ll2_stop(struct qed_dev *cdev)
qed_ptt_release(QED_LEADING_HWFN(cdev), p_ptt);
eth_zero_addr(cdev->ll2_mac_address);
+ if (cdev->hwfns[0].hw_info.personality == QED_PCI_ISCSI &&
+ cdev->hwfns[0].pf_params.iscsi_pf_params.ooo_enable)
+ qed_ll2_stop_ooo(cdev);
+
rc = qed_ll2_terminate_connection(QED_LEADING_HWFN(cdev),
cdev->ll2->handle);
if (rc)
@@ -1715,7 +2199,8 @@ static int qed_ll2_start_xmit(struct qed_dev *cdev, struct sk_buff *skb)
rc = qed_ll2_prepare_tx_packet(QED_LEADING_HWFN(cdev),
cdev->ll2->handle,
1 + skb_shinfo(skb)->nr_frags,
- vlan, flags, 0, 0 /* RoCE FLAVOR */,
+ vlan, flags, 0, QED_LL2_TX_DEST_NW,
+ 0 /* RoCE FLAVOR */,
mapping, skb->len, skb, 1);
if (rc)
goto err;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.h b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
index 4e3d62a..6625a3a 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
@@ -41,6 +41,12 @@ enum qed_ll2_conn_type {
MAX_QED_LL2_RX_CONN_TYPE
};
+enum qed_ll2_tx_dest {
+ QED_LL2_TX_DEST_NW, /* Light L2 TX Destination to the Network */
+ QED_LL2_TX_DEST_LB, /* Light L2 TX Destination to the Loopback */
+ QED_LL2_TX_DEST_MAX
+};
+
struct qed_ll2_rx_packet {
struct list_head list_entry;
struct core_rx_bd_with_buff_len *rxq_bd;
@@ -192,6 +198,8 @@ int qed_ll2_post_rx_buffer(struct qed_hwfn *p_hwfn,
* @param l4_hdr_offset_w L4 Header Offset from start of packet
* (in words). This is needed if both l4_csum
* and ipv6_ext are set
+ * @param e_tx_dest indicates if the packet is to be transmitted via
+ * loopback or to the network
* @param first_frag
* @param first_frag_len
* @param cookie
@@ -206,6 +214,7 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
u16 vlan,
u8 bd_flags,
u16 l4_hdr_offset_w,
+ enum qed_ll2_tx_dest e_tx_dest,
enum qed_ll2_roce_flavor_type qed_roce_flavor,
dma_addr_t first_frag,
u16 first_frag_len, void *cookie, u8 notify_fw);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ooo.c b/drivers/net/ethernet/qlogic/qed/qed_ooo.c
new file mode 100644
index 0000000..155abcb
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_ooo.c
@@ -0,0 +1,501 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#include <linux/types.h>
+#include <linux/dma-mapping.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include "qed.h"
+#include "qed_iscsi.h"
+#include "qed_ll2.h"
+#include "qed_ooo.h"
+
+static struct qed_ooo_archipelago
+*qed_ooo_seek_archipelago(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info
+ *p_ooo_info,
+ u32 cid)
+{
+ struct qed_ooo_archipelago *p_archipelago = NULL;
+
+ list_for_each_entry(p_archipelago,
+ &p_ooo_info->archipelagos_list, list_entry) {
+ if (p_archipelago->cid == cid)
+ return p_archipelago;
+ }
+
+ return NULL;
+}
+
+static struct qed_ooo_isle *qed_ooo_seek_isle(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 isle)
+{
+ struct qed_ooo_archipelago *p_archipelago = NULL;
+ struct qed_ooo_isle *p_isle = NULL;
+ u8 the_num_of_isle = 1;
+
+ p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid);
+ if (!p_archipelago) {
+ DP_NOTICE(p_hwfn,
+ "Connection %d is not found in OOO list\n", cid);
+ return NULL;
+ }
+
+ list_for_each_entry(p_isle, &p_archipelago->isles_list, list_entry) {
+ if (the_num_of_isle == isle)
+ return p_isle;
+ the_num_of_isle++;
+ }
+
+ return NULL;
+}
+
+void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct ooo_opaque *p_cqe)
+{
+ struct qed_ooo_history *p_history = &p_ooo_info->ooo_history;
+
+ if (p_history->head_idx == p_history->num_of_cqes)
+ p_history->head_idx = 0;
+ p_history->p_cqes[p_history->head_idx] = *p_cqe;
+ p_history->head_idx++;
+}
+
+struct qed_ooo_info *qed_ooo_alloc(struct qed_hwfn *p_hwfn)
+{
+ struct qed_ooo_info *p_ooo_info;
+ u16 max_num_archipelagos = 0;
+ u16 max_num_isles = 0;
+ u32 i;
+
+ if (p_hwfn->hw_info.personality != QED_PCI_ISCSI) {
+ DP_NOTICE(p_hwfn,
+ "Failed to allocate qed_ooo_info: unknown personality\n");
+ return NULL;
+ }
+
+ max_num_archipelagos = p_hwfn->pf_params.iscsi_pf_params.num_cons;
+ max_num_isles = QED_MAX_NUM_ISLES + max_num_archipelagos;
+
+ if (!max_num_archipelagos) {
+ DP_NOTICE(p_hwfn,
+ "Failed to allocate qed_ooo_info: unknown amount of connections\n");
+ return NULL;
+ }
+
+ p_ooo_info = kzalloc(sizeof(*p_ooo_info), GFP_KERNEL);
+ if (!p_ooo_info)
+ return NULL;
+
+ INIT_LIST_HEAD(&p_ooo_info->free_buffers_list);
+ INIT_LIST_HEAD(&p_ooo_info->ready_buffers_list);
+ INIT_LIST_HEAD(&p_ooo_info->free_isles_list);
+ INIT_LIST_HEAD(&p_ooo_info->free_archipelagos_list);
+ INIT_LIST_HEAD(&p_ooo_info->archipelagos_list);
+
+ p_ooo_info->p_isles_mem = kcalloc(max_num_isles,
+ sizeof(struct qed_ooo_isle),
+ GFP_KERNEL);
+ if (!p_ooo_info->p_isles_mem)
+ goto no_isles_mem;
+
+ for (i = 0; i < max_num_isles; i++) {
+ INIT_LIST_HEAD(&p_ooo_info->p_isles_mem[i].buffers_list);
+ list_add_tail(&p_ooo_info->p_isles_mem[i].list_entry,
+ &p_ooo_info->free_isles_list);
+ }
+
+ p_ooo_info->p_archipelagos_mem =
+ kcalloc(max_num_archipelagos,
+ sizeof(struct qed_ooo_archipelago),
+ GFP_KERNEL);
+ if (!p_ooo_info->p_archipelagos_mem)
+ goto no_archipelagos_mem;
+
+ for (i = 0; i < max_num_archipelagos; i++) {
+ INIT_LIST_HEAD(&p_ooo_info->p_archipelagos_mem[i].isles_list);
+ list_add_tail(&p_ooo_info->p_archipelagos_mem[i].list_entry,
+ &p_ooo_info->free_archipelagos_list);
+ }
+
+ p_ooo_info->ooo_history.p_cqes =
+ kcalloc(QED_MAX_NUM_OOO_HISTORY_ENTRIES,
+ sizeof(struct ooo_opaque),
+ GFP_KERNEL);
+ if (!p_ooo_info->ooo_history.p_cqes)
+ goto no_history_mem;
+
+ return p_ooo_info;
+
+no_history_mem:
+ kfree(p_ooo_info->p_archipelagos_mem);
+no_archipelagos_mem:
+ kfree(p_ooo_info->p_isles_mem);
+no_isles_mem:
+ kfree(p_ooo_info);
+ return NULL;
+}
+
+void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info, u32 cid)
+{
+ struct qed_ooo_archipelago *p_archipelago;
+ struct qed_ooo_buffer *p_buffer;
+ struct qed_ooo_isle *p_isle;
+ bool b_found = false;
+
+ if (list_empty(&p_ooo_info->archipelagos_list))
+ return;
+
+ list_for_each_entry(p_archipelago,
+ &p_ooo_info->archipelagos_list, list_entry) {
+ if (p_archipelago->cid == cid) {
+ list_del(&p_archipelago->list_entry);
+ b_found = true;
+ break;
+ }
+ }
+
+ if (!b_found)
+ return;
+
+ while (!list_empty(&p_archipelago->isles_list)) {
+ p_isle = list_first_entry(&p_archipelago->isles_list,
+ struct qed_ooo_isle, list_entry);
+
+ list_del(&p_isle->list_entry);
+
+ while (!list_empty(&p_isle->buffers_list)) {
+ p_buffer = list_first_entry(&p_isle->buffers_list,
+ struct qed_ooo_buffer,
+ list_entry);
+
+ if (!p_buffer)
+ break;
+
+ list_del(&p_buffer->list_entry);
+ list_add_tail(&p_buffer->list_entry,
+ &p_ooo_info->free_buffers_list);
+ }
+ list_add_tail(&p_isle->list_entry,
+ &p_ooo_info->free_isles_list);
+ }
+
+ list_add_tail(&p_archipelago->list_entry,
+ &p_ooo_info->free_archipelagos_list);
+}
+
+void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info)
+{
+ struct qed_ooo_archipelago *p_arch;
+ struct qed_ooo_buffer *p_buffer;
+ struct qed_ooo_isle *p_isle;
+
+ while (!list_empty(&p_ooo_info->archipelagos_list)) {
+ p_arch = list_first_entry(&p_ooo_info->archipelagos_list,
+ struct qed_ooo_archipelago,
+ list_entry);
+
+ list_del(&p_arch->list_entry);
+
+ while (!list_empty(&p_arch->isles_list)) {
+ p_isle = list_first_entry(&p_arch->isles_list,
+ struct qed_ooo_isle,
+ list_entry);
+
+ list_del(&p_isle->list_entry);
+
+ while (!list_empty(&p_isle->buffers_list)) {
+ p_buffer =
+ list_first_entry(&p_isle->buffers_list,
+ struct qed_ooo_buffer,
+ list_entry);
+
+ if (!p_buffer)
+ break;
+
+ list_del(&p_buffer->list_entry);
+ list_add_tail(&p_buffer->list_entry,
+ &p_ooo_info->free_buffers_list);
+ }
+ list_add_tail(&p_isle->list_entry,
+ &p_ooo_info->free_isles_list);
+ }
+ list_add_tail(&p_arch->list_entry,
+ &p_ooo_info->free_archipelagos_list);
+ }
+ if (!list_empty(&p_ooo_info->ready_buffers_list))
+ list_splice_tail_init(&p_ooo_info->ready_buffers_list,
+ &p_ooo_info->free_buffers_list);
+}
+
+void qed_ooo_setup(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info)
+{
+ qed_ooo_release_all_isles(p_hwfn, p_ooo_info);
+ memset(p_ooo_info->ooo_history.p_cqes, 0,
+ p_ooo_info->ooo_history.num_of_cqes *
+ sizeof(struct ooo_opaque));
+ p_ooo_info->ooo_history.head_idx = 0;
+}
+
+void qed_ooo_free(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info)
+{
+ struct qed_ooo_buffer *p_buffer;
+
+ qed_ooo_release_all_isles(p_hwfn, p_ooo_info);
+ while (!list_empty(&p_ooo_info->free_buffers_list)) {
+ p_buffer = list_first_entry(&p_ooo_info->free_buffers_list,
+ struct qed_ooo_buffer, list_entry);
+
+ if (!p_buffer)
+ break;
+
+ list_del(&p_buffer->list_entry);
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ p_buffer->rx_buffer_size,
+ p_buffer->rx_buffer_virt_addr,
+ p_buffer->rx_buffer_phys_addr);
+ kfree(p_buffer);
+ }
+
+ kfree(p_ooo_info->p_isles_mem);
+ kfree(p_ooo_info->p_archipelagos_mem);
+ kfree(p_ooo_info->ooo_history.p_cqes);
+ kfree(p_ooo_info);
+}
+
+void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer)
+{
+ list_add_tail(&p_buffer->list_entry, &p_ooo_info->free_buffers_list);
+}
+
+struct qed_ooo_buffer *qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info)
+{
+ struct qed_ooo_buffer *p_buffer = NULL;
+
+ if (!list_empty(&p_ooo_info->free_buffers_list)) {
+ p_buffer = list_first_entry(&p_ooo_info->free_buffers_list,
+ struct qed_ooo_buffer, list_entry);
+
+ list_del(&p_buffer->list_entry);
+ }
+
+ return p_buffer;
+}
+
+void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer, u8 on_tail)
+{
+ if (on_tail)
+ list_add_tail(&p_buffer->list_entry,
+ &p_ooo_info->ready_buffers_list);
+ else
+ list_add(&p_buffer->list_entry,
+ &p_ooo_info->ready_buffers_list);
+}
+
+struct qed_ooo_buffer *qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info)
+{
+ struct qed_ooo_buffer *p_buffer = NULL;
+
+ if (!list_empty(&p_ooo_info->ready_buffers_list)) {
+ p_buffer = list_first_entry(&p_ooo_info->ready_buffers_list,
+ struct qed_ooo_buffer, list_entry);
+
+ list_del(&p_buffer->list_entry);
+ }
+
+ return p_buffer;
+}
+
+void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 drop_isle, u8 drop_size)
+{
+ struct qed_ooo_archipelago *p_archipelago = NULL;
+ struct qed_ooo_isle *p_isle = NULL;
+ u8 isle_idx;
+
+ p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid);
+ for (isle_idx = 0; isle_idx < drop_size; isle_idx++) {
+ p_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid, drop_isle);
+ if (!p_isle) {
+ DP_NOTICE(p_hwfn,
+ "Isle %d is not found(cid %d)\n",
+ drop_isle, cid);
+ return;
+ }
+ if (list_empty(&p_isle->buffers_list))
+ DP_NOTICE(p_hwfn,
+ "Isle %d is empty(cid %d)\n", drop_isle, cid);
+ else
+ list_splice_tail_init(&p_isle->buffers_list,
+ &p_ooo_info->free_buffers_list);
+
+ list_del(&p_isle->list_entry);
+ p_ooo_info->cur_isles_number--;
+ list_add(&p_isle->list_entry, &p_ooo_info->free_isles_list);
+ }
+
+ if (list_empty(&p_archipelago->isles_list)) {
+ list_del(&p_archipelago->list_entry);
+ list_add(&p_archipelago->list_entry,
+ &p_ooo_info->free_archipelagos_list);
+ }
+}
+
+void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 ooo_isle,
+ struct qed_ooo_buffer *p_buffer)
+{
+ struct qed_ooo_archipelago *p_archipelago = NULL;
+ struct qed_ooo_isle *p_prev_isle = NULL;
+ struct qed_ooo_isle *p_isle = NULL;
+
+ if (ooo_isle > 1) {
+ p_prev_isle = qed_ooo_seek_isle(p_hwfn,
+ p_ooo_info, cid, ooo_isle - 1);
+ if (!p_prev_isle) {
+ DP_NOTICE(p_hwfn,
+ "Isle %d is not found(cid %d)\n",
+ ooo_isle - 1, cid);
+ return;
+ }
+ }
+ p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid);
+ if (!p_archipelago && (ooo_isle != 1)) {
+ DP_NOTICE(p_hwfn,
+ "Connection %d is not found in OOO list\n", cid);
+ return;
+ }
+
+ if (!list_empty(&p_ooo_info->free_isles_list)) {
+ p_isle = list_first_entry(&p_ooo_info->free_isles_list,
+ struct qed_ooo_isle, list_entry);
+
+ list_del(&p_isle->list_entry);
+ if (!list_empty(&p_isle->buffers_list)) {
+ DP_NOTICE(p_hwfn, "Free isle is not empty\n");
+ INIT_LIST_HEAD(&p_isle->buffers_list);
+ }
+ } else {
+ DP_NOTICE(p_hwfn, "No more free isles\n");
+ return;
+ }
+
+ if (!p_archipelago &&
+ !list_empty(&p_ooo_info->free_archipelagos_list)) {
+ p_archipelago =
+ list_first_entry(&p_ooo_info->free_archipelagos_list,
+ struct qed_ooo_archipelago, list_entry);
+
+ list_del(&p_archipelago->list_entry);
+ if (!list_empty(&p_archipelago->isles_list)) {
+ DP_NOTICE(p_hwfn,
+ "Free OOO connection is not empty\n");
+ INIT_LIST_HEAD(&p_archipelago->isles_list);
+ }
+ p_archipelago->cid = cid;
+ list_add(&p_archipelago->list_entry,
+ &p_ooo_info->archipelagos_list);
+ } else if (!p_archipelago) {
+ DP_NOTICE(p_hwfn, "No more free OOO connections\n");
+ list_add(&p_isle->list_entry,
+ &p_ooo_info->free_isles_list);
+ list_add(&p_buffer->list_entry,
+ &p_ooo_info->free_buffers_list);
+ return;
+ }
+
+ list_add(&p_buffer->list_entry, &p_isle->buffers_list);
+ p_ooo_info->cur_isles_number++;
+ p_ooo_info->gen_isles_number++;
+
+ if (p_ooo_info->cur_isles_number > p_ooo_info->max_isles_number)
+ p_ooo_info->max_isles_number = p_ooo_info->cur_isles_number;
+
+ if (!p_prev_isle)
+ list_add(&p_isle->list_entry, &p_archipelago->isles_list);
+ else
+ list_add(&p_isle->list_entry, &p_prev_isle->list_entry);
+}
+
+void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid,
+ u8 ooo_isle,
+ struct qed_ooo_buffer *p_buffer, u8 buffer_side)
+{
+ struct qed_ooo_isle *p_isle = NULL;
+
+ p_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid, ooo_isle);
+ if (!p_isle) {
+ DP_NOTICE(p_hwfn,
+ "Isle %d is not found(cid %d)\n", ooo_isle, cid);
+ return;
+ }
+
+ if (buffer_side == QED_OOO_LEFT_BUF)
+ list_add(&p_buffer->list_entry, &p_isle->buffers_list);
+ else
+ list_add_tail(&p_buffer->list_entry, &p_isle->buffers_list);
+}
+
+void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info, u32 cid, u8 left_isle)
+{
+ struct qed_ooo_archipelago *p_archipelago = NULL;
+ struct qed_ooo_isle *p_right_isle = NULL;
+ struct qed_ooo_isle *p_left_isle = NULL;
+
+ p_right_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid,
+ left_isle + 1);
+ if (!p_right_isle) {
+ DP_NOTICE(p_hwfn,
+ "Right isle %d is not found(cid %d)\n",
+ left_isle + 1, cid);
+ return;
+ }
+
+ p_archipelago = qed_ooo_seek_archipelago(p_hwfn, p_ooo_info, cid);
+ list_del(&p_right_isle->list_entry);
+ p_ooo_info->cur_isles_number--;
+ if (left_isle) {
+ p_left_isle = qed_ooo_seek_isle(p_hwfn, p_ooo_info, cid,
+ left_isle);
+ if (!p_left_isle) {
+ DP_NOTICE(p_hwfn,
+ "Left isle %d is not found(cid %d)\n",
+ left_isle, cid);
+ return;
+ }
+ list_splice_tail_init(&p_right_isle->buffers_list,
+ &p_left_isle->buffers_list);
+ } else {
+ list_splice_tail_init(&p_right_isle->buffers_list,
+ &p_ooo_info->ready_buffers_list);
+ if (list_empty(&p_archipelago->isles_list)) {
+ list_del(&p_archipelago->list_entry);
+ list_add(&p_archipelago->list_entry,
+ &p_ooo_info->free_archipelagos_list);
+ }
+ }
+ list_add_tail(&p_right_isle->list_entry, &p_ooo_info->free_isles_list);
+}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ooo.h b/drivers/net/ethernet/qlogic/qed/qed_ooo.h
new file mode 100644
index 0000000..1b28852
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_ooo.h
@@ -0,0 +1,173 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QED_OOO_H
+#define _QED_OOO_H
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include "qed.h"
+
+#define QED_MAX_NUM_ISLES 256
+#define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512
+
+#define QED_OOO_LEFT_BUF 0
+#define QED_OOO_RIGHT_BUF 1
+
+struct qed_ooo_buffer {
+ struct list_head list_entry;
+ void *rx_buffer_virt_addr;
+ dma_addr_t rx_buffer_phys_addr;
+ u32 rx_buffer_size;
+ u16 packet_length;
+ u16 parse_flags;
+ u16 vlan;
+ u8 placement_offset;
+};
+
+struct qed_ooo_isle {
+ struct list_head list_entry;
+ struct list_head buffers_list;
+};
+
+struct qed_ooo_archipelago {
+ struct list_head list_entry;
+ struct list_head isles_list;
+ u32 cid;
+};
+
+struct qed_ooo_history {
+ struct ooo_opaque *p_cqes;
+ u32 head_idx;
+ u32 num_of_cqes;
+};
+
+struct qed_ooo_info {
+ struct list_head free_buffers_list;
+ struct list_head ready_buffers_list;
+ struct list_head free_isles_list;
+ struct list_head free_archipelagos_list;
+ struct list_head archipelagos_list;
+ struct qed_ooo_archipelago *p_archipelagos_mem;
+ struct qed_ooo_isle *p_isles_mem;
+ struct qed_ooo_history ooo_history;
+ u32 cur_isles_number;
+ u32 max_isles_number;
+ u32 gen_isles_number;
+};
+
+#if IS_ENABLED(CONFIG_QEDI)
+void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct ooo_opaque *p_cqe);
+
+struct qed_ooo_info *qed_ooo_alloc(struct qed_hwfn *p_hwfn);
+
+void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid);
+
+void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info);
+
+void qed_ooo_setup(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info);
+
+void qed_ooo_free(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info);
+
+void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer);
+
+struct qed_ooo_buffer *
+qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info);
+
+void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer, u8 on_tail);
+
+struct qed_ooo_buffer *
+qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info);
+
+void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 drop_isle, u8 drop_size);
+
+void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid,
+ u8 ooo_isle, struct qed_ooo_buffer *p_buffer);
+
+void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid,
+ u8 ooo_isle,
+ struct qed_ooo_buffer *p_buffer, u8 buffer_side);
+
+void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info, u32 cid,
+ u8 left_isle);
+#else /* IS_ENABLED(CONFIG_QEDI) */
+static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct ooo_opaque *p_cqe) {}
+
+static inline struct qed_ooo_info *qed_ooo_alloc(
+ struct qed_hwfn *p_hwfn) { return NULL; }
+
+static inline void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid) {}
+
+static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info) {}
+
+static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info) {}
+
+static inline void qed_ooo_free(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info) {}
+
+static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer) {}
+
+static inline struct qed_ooo_buffer *
+qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info) { return NULL; }
+
+static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ struct qed_ooo_buffer *p_buffer, u8 on_tail) {}
+
+static inline struct qed_ooo_buffer *
+qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info) { return NULL; }
+
+static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid, u8 drop_isle, u8 drop_size) {}
+
+static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid,
+ u8 ooo_isle, struct qed_ooo_buffer *p_buffer) {}
+
+static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info,
+ u32 cid,
+ u8 ooo_isle,
+ struct qed_ooo_buffer *p_buffer, u8 buffer_side) {}
+
+static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
+ struct qed_ooo_info *p_ooo_info, u32 cid,
+ u8 left_isle) {}
+#endif /* IS_ENABLED(CONFIG_QEDI) */
+
+#endif
diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c
index 6a353ff..2a16547 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c
@@ -2771,6 +2771,7 @@ static int qed_roce_ll2_tx(struct qed_dev *cdev,
/* Tx header */
rc = qed_ll2_prepare_tx_packet(QED_LEADING_HWFN(cdev), roce_ll2->handle,
1 + pkt->n_seg, 0, flags, 0,
+ QED_LL2_TX_DEST_NW,
qed_roce_flavor, pkt->header.baddr,
pkt->header.len, pkt, 1);
if (rc) {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_spq.c b/drivers/net/ethernet/qlogic/qed/qed_spq.c
index dfc4148..0aced70e 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_spq.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_spq.c
@@ -26,6 +26,7 @@
#include "qed_int.h"
#include "qed_iscsi.h"
#include "qed_mcp.h"
+#include "qed_ooo.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"
#include "qed_sriov.h"
@@ -281,6 +282,14 @@ static int qed_spq_hw_post(struct qed_hwfn *p_hwfn,
case PROTOCOLID_ISCSI:
if (!IS_ENABLED(CONFIG_QEDI))
return -EINVAL;
+ if (p_eqe->opcode == ISCSI_EVENT_TYPE_ASYN_DELETE_OOO_ISLES) {
+ u32 cid = le32_to_cpu(p_eqe->data.iscsi_info.cid);
+
+ qed_ooo_release_connection_isles(p_hwfn,
+ p_hwfn->p_ooo_info,
+ cid);
+ return 0;
+ }
if (p_hwfn->p_iscsi_info->event_cb) {
struct qed_iscsi_info *p_iscsi = p_hwfn->p_iscsi_info;
--
1.8.3.1
^ permalink raw reply related
* [PATCH v2 1/6] qed: Add support for hardware offloaded iSCSI.
From: Manish Rangankar @ 2016-11-08 6:56 UTC (permalink / raw)
To: martin.petersen, lduncan, cleech
Cc: linux-scsi, netdev, QLogic-Storage-Upstream, Yuval.Mintz
In-Reply-To: <1478588223-16183-1-git-send-email-manish.rangankar@cavium.com>
From: Yuval Mintz <Yuval.Mintz@cavium.com>
This adds the backbone required for the various HW initalizations
which are necessary for the iSCSI driver (qedi) for QLogic FastLinQ
4xxxx line of adapters - FW notification, resource initializations, etc.
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com>
---
drivers/net/ethernet/qlogic/Kconfig | 15 +
drivers/net/ethernet/qlogic/qed/Makefile | 1 +
drivers/net/ethernet/qlogic/qed/qed.h | 7 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 12 +
drivers/net/ethernet/qlogic/qed/qed_int.h | 1 -
drivers/net/ethernet/qlogic/qed/qed_iscsi.c | 1276 ++++++++++++++++++++++++
drivers/net/ethernet/qlogic/qed/qed_iscsi.h | 52 +
drivers/net/ethernet/qlogic/qed/qed_l2.c | 1 -
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 4 +-
drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 2 +
drivers/net/ethernet/qlogic/qed/qed_spq.c | 15 +
include/linux/qed/qed_if.h | 2 +
include/linux/qed/qed_iscsi_if.h | 229 +++++
13 files changed, 1613 insertions(+), 4 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_iscsi.c
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_iscsi.h
create mode 100644 include/linux/qed/qed_iscsi_if.h
diff --git a/drivers/net/ethernet/qlogic/Kconfig b/drivers/net/ethernet/qlogic/Kconfig
index 32f2a45..2832570 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -110,4 +110,19 @@ config QEDE
config QED_RDMA
bool
+config QED_ISCSI
+ bool
+
+config QEDI
+ tristate "QLogic QED 25/40/100Gb iSCSI driver"
+ depends on QED
+ select QED_LL2
+ select QED_ISCSI
+ default n
+ ---help---
+ This provides a temporary node that allows the compilation
+ and logical testing of the hardware offload iSCSI support
+ for QLogic QED. This would be replaced by the 'real' option
+ once the QEDI driver is added [+relocated].
+
endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile b/drivers/net/ethernet/qlogic/qed/Makefile
index 967acf3..597e15c 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -6,3 +6,4 @@ qed-y := qed_cxt.o qed_dev.o qed_hw.o qed_init_fw_funcs.o qed_init_ops.o \
qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
qed-$(CONFIG_QED_LL2) += qed_ll2.o
qed-$(CONFIG_QED_RDMA) += qed_roce.o
+qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h b/drivers/net/ethernet/qlogic/qed/qed.h
index 50b8a01..15286c1 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -35,6 +35,7 @@
#define QED_WFQ_UNIT 100
+#define ISCSI_BDQ_ID(_port_id) (_port_id)
#define QED_WID_SIZE (1024)
#define QED_PF_DEMS_SIZE (4)
@@ -392,6 +393,7 @@ struct qed_hwfn {
bool using_ll2;
struct qed_ll2_info *p_ll2_info;
struct qed_rdma_info *p_rdma_info;
+ struct qed_iscsi_info *p_iscsi_info;
struct qed_pf_params pf_params;
bool b_rdma_enabled_in_prs;
@@ -593,6 +595,8 @@ struct qed_dev {
/* Linux specific here */
struct qede_dev *edev;
struct pci_dev *pdev;
+ u32 flags;
+#define QED_FLAG_STORAGE_STARTED (BIT(0))
int msg_enable;
struct pci_params pci_params;
@@ -606,6 +610,7 @@ struct qed_dev {
union {
struct qed_common_cb_ops *common;
struct qed_eth_cb_ops *eth;
+ struct qed_iscsi_cb_ops *iscsi;
} protocol_ops;
void *ops_cookie;
@@ -615,7 +620,7 @@ struct qed_dev {
struct qed_cb_ll2_info *ll2;
u8 ll2_mac_address[ETH_ALEN];
#endif
-
+ DECLARE_HASHTABLE(connections, 10);
const struct firmware *firmware;
u32 rdma_max_sge;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 5be7b8a..e3612be 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -29,6 +29,7 @@
#include "qed_hw.h"
#include "qed_init_ops.h"
#include "qed_int.h"
+#include "qed_iscsi.h"
#include "qed_ll2.h"
#include "qed_mcp.h"
#include "qed_reg_addr.h"
@@ -155,6 +156,8 @@ void qed_resc_free(struct qed_dev *cdev)
#ifdef CONFIG_QED_LL2
qed_ll2_free(p_hwfn, p_hwfn->p_ll2_info);
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_ISCSI)
+ qed_iscsi_free(p_hwfn, p_hwfn->p_iscsi_info);
qed_iov_free(p_hwfn);
qed_dmae_info_free(p_hwfn);
qed_dcbx_info_free(p_hwfn, p_hwfn->p_dcbx_info);
@@ -411,6 +414,7 @@ int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
int qed_resc_alloc(struct qed_dev *cdev)
{
+ struct qed_iscsi_info *p_iscsi_info;
#ifdef CONFIG_QED_LL2
struct qed_ll2_info *p_ll2_info;
#endif
@@ -533,6 +537,12 @@ int qed_resc_alloc(struct qed_dev *cdev)
p_hwfn->p_ll2_info = p_ll2_info;
}
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
+ p_iscsi_info = qed_iscsi_alloc(p_hwfn);
+ if (!p_iscsi_info)
+ goto alloc_no_mem;
+ p_hwfn->p_iscsi_info = p_iscsi_info;
+ }
/* DMA info initialization */
rc = qed_dmae_info_alloc(p_hwfn);
@@ -586,6 +596,8 @@ void qed_resc_setup(struct qed_dev *cdev)
if (p_hwfn->using_ll2)
qed_ll2_setup(p_hwfn, p_hwfn->p_ll2_info);
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_ISCSI)
+ qed_iscsi_setup(p_hwfn, p_hwfn->p_iscsi_info);
}
}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_int.h b/drivers/net/ethernet/qlogic/qed/qed_int.h
index 0948be6..cc28066 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_int.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_int.h
@@ -218,7 +218,6 @@ struct qed_igu_info {
u16 free_blks;
};
-/* TODO Names of function may change... */
void qed_int_igu_init_pure_rt(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
bool b_set,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iscsi.c b/drivers/net/ethernet/qlogic/qed/qed_iscsi.c
new file mode 100644
index 0000000..8e1b141
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_iscsi.c
@@ -0,0 +1,1276 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <asm/param.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/log2.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/stddef.h>
+#include <linux/string.h>
+#include <linux/version.h>
+#include <linux/workqueue.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/qed/qed_iscsi_if.h>
+#include "qed.h"
+#include "qed_cxt.h"
+#include "qed_dev_api.h"
+#include "qed_hsi.h"
+#include "qed_hw.h"
+#include "qed_int.h"
+#include "qed_iscsi.h"
+#include "qed_ll2.h"
+#include "qed_mcp.h"
+#include "qed_sp.h"
+#include "qed_sriov.h"
+#include "qed_reg_addr.h"
+
+struct qed_iscsi_conn {
+ struct list_head list_entry;
+ bool free_on_delete;
+
+ u16 conn_id;
+ u32 icid;
+ u32 fw_cid;
+
+ u8 layer_code;
+ u8 offl_flags;
+ u8 connect_mode;
+ u32 initial_ack;
+ dma_addr_t sq_pbl_addr;
+ struct qed_chain r2tq;
+ struct qed_chain xhq;
+ struct qed_chain uhq;
+
+ struct tcp_upload_params *tcp_upload_params_virt_addr;
+ dma_addr_t tcp_upload_params_phys_addr;
+ struct scsi_terminate_extra_params *queue_cnts_virt_addr;
+ dma_addr_t queue_cnts_phys_addr;
+ dma_addr_t syn_phy_addr;
+
+ u16 syn_ip_payload_length;
+ u8 local_mac[6];
+ u8 remote_mac[6];
+ u16 vlan_id;
+ u8 tcp_flags;
+ u8 ip_version;
+ u32 remote_ip[4];
+ u32 local_ip[4];
+ u8 ka_max_probe_cnt;
+ u8 dup_ack_theshold;
+ u32 rcv_next;
+ u32 snd_una;
+ u32 snd_next;
+ u32 snd_max;
+ u32 snd_wnd;
+ u32 rcv_wnd;
+ u32 snd_wl1;
+ u32 cwnd;
+ u32 ss_thresh;
+ u16 srtt;
+ u16 rtt_var;
+ u32 ts_time;
+ u32 ts_recent;
+ u32 ts_recent_age;
+ u32 total_rt;
+ u32 ka_timeout_delta;
+ u32 rt_timeout_delta;
+ u8 dup_ack_cnt;
+ u8 snd_wnd_probe_cnt;
+ u8 ka_probe_cnt;
+ u8 rt_cnt;
+ u32 flow_label;
+ u32 ka_timeout;
+ u32 ka_interval;
+ u32 max_rt_time;
+ u32 initial_rcv_wnd;
+ u8 ttl;
+ u8 tos_or_tc;
+ u16 remote_port;
+ u16 local_port;
+ u16 mss;
+ u8 snd_wnd_scale;
+ u8 rcv_wnd_scale;
+ u32 ts_ticks_per_second;
+ u16 da_timeout_value;
+ u8 ack_frequency;
+
+ u8 update_flag;
+ u8 default_cq;
+ u32 max_seq_size;
+ u32 max_recv_pdu_length;
+ u32 max_send_pdu_length;
+ u32 first_seq_length;
+ u32 exp_stat_sn;
+ u32 stat_sn;
+ u16 physical_q0;
+ u16 physical_q1;
+ u8 abortive_dsconnect;
+};
+
+static int
+qed_sp_iscsi_func_start(struct qed_hwfn *p_hwfn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr,
+ void *event_context, iscsi_event_cb_t async_event_cb)
+{
+ struct iscsi_init_ramrod_params *p_ramrod = NULL;
+ struct scsi_init_func_queues *p_queue = NULL;
+ struct qed_iscsi_pf_params *p_params = NULL;
+ struct iscsi_spe_func_init *p_init = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = 0;
+ u32 dval;
+ u16 val;
+ u8 i;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = qed_spq_get_cid(p_hwfn);
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_INIT_FUNC,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_init;
+ p_init = &p_ramrod->iscsi_init_spe;
+ p_params = &p_hwfn->pf_params.iscsi_pf_params;
+ p_queue = &p_init->q_params;
+
+ SET_FIELD(p_init->hdr.flags,
+ ISCSI_SLOW_PATH_HDR_LAYER_CODE, ISCSI_SLOW_PATH_LAYER_CODE);
+ p_init->hdr.op_code = ISCSI_RAMROD_CMD_ID_INIT_FUNC;
+
+ val = p_params->half_way_close_timeout;
+ p_init->half_way_close_timeout = cpu_to_le16(val);
+ p_init->num_sq_pages_in_ring = p_params->num_sq_pages_in_ring;
+ p_init->num_r2tq_pages_in_ring = p_params->num_r2tq_pages_in_ring;
+ p_init->num_uhq_pages_in_ring = p_params->num_uhq_pages_in_ring;
+ p_init->func_params.log_page_size = p_params->log_page_size;
+ val = p_params->num_tasks;
+ p_init->func_params.num_tasks = cpu_to_le16(val);
+ p_init->debug_mode.flags = p_params->debug_mode;
+
+ DMA_REGPAIR_LE(p_queue->glbl_q_params_addr,
+ p_params->glbl_q_params_addr);
+
+ val = p_params->cq_num_entries;
+ p_queue->cq_num_entries = cpu_to_le16(val);
+ val = p_params->cmdq_num_entries;
+ p_queue->cmdq_num_entries = cpu_to_le16(val);
+ p_queue->num_queues = p_params->num_queues;
+ dval = (u8)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
+ p_queue->queue_relative_offset = (u8)dval;
+ p_queue->cq_sb_pi = p_params->gl_rq_pi;
+ p_queue->cmdq_sb_pi = p_params->gl_cmd_pi;
+
+ for (i = 0; i < p_params->num_queues; i++) {
+ val = p_hwfn->sbs_info[i]->igu_sb_id;
+ p_queue->cq_cmdq_sb_num_arr[i] = cpu_to_le16(val);
+ }
+
+ p_queue->bdq_resource_id = ISCSI_BDQ_ID(p_hwfn->port_id);
+
+ DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_RQ],
+ p_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
+ p_queue->bdq_pbl_num_entries[BDQ_ID_RQ] =
+ p_params->bdq_pbl_num_entries[BDQ_ID_RQ];
+ val = p_params->bdq_xoff_threshold[BDQ_ID_RQ];
+ p_queue->bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(val);
+ val = p_params->bdq_xon_threshold[BDQ_ID_RQ];
+ p_queue->bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(val);
+
+ DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_IMM_DATA],
+ p_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
+ p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
+ p_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
+ val = p_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
+ p_queue->bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val);
+ val = p_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
+ p_queue->bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val);
+ val = p_params->rq_buffer_size;
+ p_queue->rq_buffer_size = cpu_to_le16(val);
+ if (p_params->is_target) {
+ SET_FIELD(p_queue->q_validity,
+ SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
+ if (p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
+ SET_FIELD(p_queue->q_validity,
+ SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
+ SET_FIELD(p_queue->q_validity,
+ SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
+ } else {
+ SET_FIELD(p_queue->q_validity,
+ SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
+ }
+ p_ramrod->tcp_init.two_msl_timer = cpu_to_le32(p_params->two_msl_timer);
+ val = p_params->tx_sws_timer;
+ p_ramrod->tcp_init.tx_sws_timer = cpu_to_le16(val);
+ p_ramrod->tcp_init.maxfinrt = p_params->max_fin_rt;
+
+ p_hwfn->p_iscsi_info->event_context = event_context;
+ p_hwfn->p_iscsi_info->event_cb = async_event_cb;
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_sp_iscsi_conn_offload(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct iscsi_spe_conn_offload *p_ramrod = NULL;
+ struct tcp_offload_params_opt2 *p_tcp2 = NULL;
+ struct tcp_offload_params *p_tcp = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ union qed_qm_pq_params pq_params;
+ u16 pq0_id = 0, pq1_id = 0;
+ dma_addr_t r2tq_pbl_addr;
+ dma_addr_t xhq_pbl_addr;
+ dma_addr_t uhq_pbl_addr;
+ int rc = 0;
+ u32 dval;
+ u16 wval;
+ u8 i;
+ u16 *p;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_conn_offload;
+
+ /* Transmission PQ is the first of the PF */
+ memset(&pq_params, 0, sizeof(pq_params));
+ pq0_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_ISCSI, &pq_params);
+ p_conn->physical_q0 = cpu_to_le16(pq0_id);
+ p_ramrod->iscsi.physical_q0 = cpu_to_le16(pq0_id);
+
+ /* iSCSI Pure-ACK PQ */
+ pq_params.iscsi.q_idx = 1;
+ pq1_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_ISCSI, &pq_params);
+ p_conn->physical_q1 = cpu_to_le16(pq1_id);
+ p_ramrod->iscsi.physical_q1 = cpu_to_le16(pq1_id);
+
+ p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN;
+ SET_FIELD(p_ramrod->hdr.flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE,
+ p_conn->layer_code);
+
+ p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id);
+ p_ramrod->fw_cid = cpu_to_le32(p_conn->icid);
+
+ DMA_REGPAIR_LE(p_ramrod->iscsi.sq_pbl_addr, p_conn->sq_pbl_addr);
+
+ r2tq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->r2tq);
+ DMA_REGPAIR_LE(p_ramrod->iscsi.r2tq_pbl_addr, r2tq_pbl_addr);
+
+ xhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->xhq);
+ DMA_REGPAIR_LE(p_ramrod->iscsi.xhq_pbl_addr, xhq_pbl_addr);
+
+ uhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->uhq);
+ DMA_REGPAIR_LE(p_ramrod->iscsi.uhq_pbl_addr, uhq_pbl_addr);
+
+ p_ramrod->iscsi.initial_ack = cpu_to_le32(p_conn->initial_ack);
+ p_ramrod->iscsi.flags = p_conn->offl_flags;
+ p_ramrod->iscsi.default_cq = p_conn->default_cq;
+ p_ramrod->iscsi.stat_sn = cpu_to_le32(p_conn->stat_sn);
+
+ if (!GET_FIELD(p_ramrod->iscsi.flags,
+ ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B)) {
+ p_tcp = &p_ramrod->tcp;
+
+ p = (u16 *)p_conn->local_mac;
+ p_tcp->local_mac_addr_hi = swab16(get_unaligned(p));
+ p_tcp->local_mac_addr_mid = swab16(get_unaligned(p + 1));
+ p_tcp->local_mac_addr_lo = swab16(get_unaligned(p + 2));
+
+ p = (u16 *)p_conn->remote_mac;
+ p_tcp->remote_mac_addr_hi = swab16(get_unaligned(p));
+ p_tcp->remote_mac_addr_mid = swab16(get_unaligned(p + 1));
+ p_tcp->remote_mac_addr_lo = swab16(get_unaligned(p + 2));
+
+ p_tcp->vlan_id = cpu_to_le16(p_conn->vlan_id);
+
+ p_tcp->flags = p_conn->tcp_flags;
+ p_tcp->ip_version = p_conn->ip_version;
+ for (i = 0; i < 4; i++) {
+ dval = p_conn->remote_ip[i];
+ p_tcp->remote_ip[i] = cpu_to_le32(dval);
+ dval = p_conn->local_ip[i];
+ p_tcp->local_ip[i] = cpu_to_le32(dval);
+ }
+ p_tcp->ka_max_probe_cnt = p_conn->ka_max_probe_cnt;
+ p_tcp->dup_ack_theshold = p_conn->dup_ack_theshold;
+
+ p_tcp->rcv_next = cpu_to_le32(p_conn->rcv_next);
+ p_tcp->snd_una = cpu_to_le32(p_conn->snd_una);
+ p_tcp->snd_next = cpu_to_le32(p_conn->snd_next);
+ p_tcp->snd_max = cpu_to_le32(p_conn->snd_max);
+ p_tcp->snd_wnd = cpu_to_le32(p_conn->snd_wnd);
+ p_tcp->rcv_wnd = cpu_to_le32(p_conn->rcv_wnd);
+ p_tcp->snd_wl1 = cpu_to_le32(p_conn->snd_wl1);
+ p_tcp->cwnd = cpu_to_le32(p_conn->cwnd);
+ p_tcp->ss_thresh = cpu_to_le32(p_conn->ss_thresh);
+ p_tcp->srtt = cpu_to_le16(p_conn->srtt);
+ p_tcp->rtt_var = cpu_to_le16(p_conn->rtt_var);
+ p_tcp->ts_time = cpu_to_le32(p_conn->ts_time);
+ p_tcp->ts_recent = cpu_to_le32(p_conn->ts_recent);
+ p_tcp->ts_recent_age = cpu_to_le32(p_conn->ts_recent_age);
+ p_tcp->total_rt = cpu_to_le32(p_conn->total_rt);
+ dval = p_conn->ka_timeout_delta;
+ p_tcp->ka_timeout_delta = cpu_to_le32(dval);
+ dval = p_conn->rt_timeout_delta;
+ p_tcp->rt_timeout_delta = cpu_to_le32(dval);
+ p_tcp->dup_ack_cnt = p_conn->dup_ack_cnt;
+ p_tcp->snd_wnd_probe_cnt = p_conn->snd_wnd_probe_cnt;
+ p_tcp->ka_probe_cnt = p_conn->ka_probe_cnt;
+ p_tcp->rt_cnt = p_conn->rt_cnt;
+ p_tcp->flow_label = cpu_to_le32(p_conn->flow_label);
+ p_tcp->ka_timeout = cpu_to_le32(p_conn->ka_timeout);
+ p_tcp->ka_interval = cpu_to_le32(p_conn->ka_interval);
+ p_tcp->max_rt_time = cpu_to_le32(p_conn->max_rt_time);
+ dval = p_conn->initial_rcv_wnd;
+ p_tcp->initial_rcv_wnd = cpu_to_le32(dval);
+ p_tcp->ttl = p_conn->ttl;
+ p_tcp->tos_or_tc = p_conn->tos_or_tc;
+ p_tcp->remote_port = cpu_to_le16(p_conn->remote_port);
+ p_tcp->local_port = cpu_to_le16(p_conn->local_port);
+ p_tcp->mss = cpu_to_le16(p_conn->mss);
+ p_tcp->snd_wnd_scale = p_conn->snd_wnd_scale;
+ p_tcp->rcv_wnd_scale = p_conn->rcv_wnd_scale;
+ dval = p_conn->ts_ticks_per_second;
+ p_tcp->ts_ticks_per_second = cpu_to_le32(dval);
+ wval = p_conn->da_timeout_value;
+ p_tcp->da_timeout_value = cpu_to_le16(wval);
+ p_tcp->ack_frequency = p_conn->ack_frequency;
+ p_tcp->connect_mode = p_conn->connect_mode;
+ } else {
+ p_tcp2 =
+ &((struct iscsi_spe_conn_offload_option2 *)p_ramrod)->tcp;
+
+ p = (u16 *)p_conn->local_mac;
+ p_tcp2->local_mac_addr_hi = swab16(get_unaligned(p));
+ p_tcp2->local_mac_addr_mid = swab16(get_unaligned(p + 1));
+ p_tcp2->local_mac_addr_lo = swab16(get_unaligned(p + 2));
+
+ p = (u16 *)p_conn->remote_mac;
+ p_tcp2->remote_mac_addr_hi = swab16(get_unaligned(p));
+ p_tcp2->remote_mac_addr_mid = swab16(get_unaligned(p + 1));
+ p_tcp2->remote_mac_addr_lo = swab16(get_unaligned(p + 2));
+
+ p_tcp2->vlan_id = cpu_to_le16(p_conn->vlan_id);
+ p_tcp2->flags = p_conn->tcp_flags;
+
+ p_tcp2->ip_version = p_conn->ip_version;
+ for (i = 0; i < 4; i++) {
+ dval = p_conn->remote_ip[i];
+ p_tcp2->remote_ip[i] = cpu_to_le32(dval);
+ dval = p_conn->local_ip[i];
+ p_tcp2->local_ip[i] = cpu_to_le32(dval);
+ }
+
+ p_tcp2->flow_label = cpu_to_le32(p_conn->flow_label);
+ p_tcp2->ttl = p_conn->ttl;
+ p_tcp2->tos_or_tc = p_conn->tos_or_tc;
+ p_tcp2->remote_port = cpu_to_le16(p_conn->remote_port);
+ p_tcp2->local_port = cpu_to_le16(p_conn->local_port);
+ p_tcp2->mss = cpu_to_le16(p_conn->mss);
+ p_tcp2->rcv_wnd_scale = p_conn->rcv_wnd_scale;
+ p_tcp2->connect_mode = p_conn->connect_mode;
+ wval = p_conn->syn_ip_payload_length;
+ p_tcp2->syn_ip_payload_length = cpu_to_le16(wval);
+ p_tcp2->syn_phy_addr_lo = DMA_LO_LE(p_conn->syn_phy_addr);
+ p_tcp2->syn_phy_addr_hi = DMA_HI_LE(p_conn->syn_phy_addr);
+ }
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_sp_iscsi_conn_update(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct iscsi_conn_update_ramrod_params *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = -EINVAL;
+ u32 dval;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_UPDATE_CONN,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_conn_update;
+ p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_UPDATE_CONN;
+ SET_FIELD(p_ramrod->hdr.flags,
+ ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code);
+
+ p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id);
+ p_ramrod->fw_cid = cpu_to_le32(p_conn->icid);
+ p_ramrod->flags = p_conn->update_flag;
+ p_ramrod->max_seq_size = cpu_to_le32(p_conn->max_seq_size);
+ dval = p_conn->max_recv_pdu_length;
+ p_ramrod->max_recv_pdu_length = cpu_to_le32(dval);
+ dval = p_conn->max_send_pdu_length;
+ p_ramrod->max_send_pdu_length = cpu_to_le32(dval);
+ dval = p_conn->first_seq_length;
+ p_ramrod->first_seq_length = cpu_to_le32(dval);
+ p_ramrod->exp_stat_sn = cpu_to_le32(p_conn->exp_stat_sn);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_sp_iscsi_conn_terminate(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct iscsi_spe_conn_termination *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = -EINVAL;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_TERMINATION_CONN,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_conn_terminate;
+ p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_TERMINATION_CONN;
+ SET_FIELD(p_ramrod->hdr.flags,
+ ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code);
+
+ p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id);
+ p_ramrod->fw_cid = cpu_to_le32(p_conn->icid);
+ p_ramrod->abortive = p_conn->abortive_dsconnect;
+
+ DMA_REGPAIR_LE(p_ramrod->query_params_addr,
+ p_conn->tcp_upload_params_phys_addr);
+ DMA_REGPAIR_LE(p_ramrod->queue_cnts_addr, p_conn->queue_cnts_phys_addr);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_sp_iscsi_conn_clear_sq(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct iscsi_slow_path_hdr *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = -EINVAL;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_CLEAR_SQ,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_empty;
+ p_ramrod->op_code = ISCSI_RAMROD_CMD_ID_CLEAR_SQ;
+ SET_FIELD(p_ramrod->flags,
+ ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int qed_sp_iscsi_func_stop(struct qed_hwfn *p_hwfn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct iscsi_spe_func_dstry *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = 0;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = qed_spq_get_cid(p_hwfn);
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ ISCSI_RAMROD_CMD_ID_DESTROY_FUNC,
+ PROTOCOLID_ISCSI, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iscsi_destroy;
+ p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_DESTROY_FUNC;
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static void __iomem *qed_iscsi_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
+{
+ return (u8 __iomem *)p_hwfn->doorbells +
+ qed_db_addr(cid, DQ_DEMS_LEGACY);
+}
+
+static void __iomem *qed_iscsi_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
+ u8 bdq_id)
+{
+ u8 bdq_function_id = ISCSI_BDQ_ID(p_hwfn->port_id);
+
+ return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_MSDM_RAM +
+ MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id,
+ bdq_id);
+}
+
+static void __iomem *qed_iscsi_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
+ u8 bdq_id)
+{
+ u8 bdq_function_id = ISCSI_BDQ_ID(p_hwfn->port_id);
+
+ return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_TSDM_RAM +
+ TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id,
+ bdq_id);
+}
+
+static int qed_iscsi_setup_connection(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn)
+{
+ if (!p_conn->queue_cnts_virt_addr)
+ goto nomem;
+ memset(p_conn->queue_cnts_virt_addr, 0,
+ sizeof(*p_conn->queue_cnts_virt_addr));
+
+ if (!p_conn->tcp_upload_params_virt_addr)
+ goto nomem;
+ memset(p_conn->tcp_upload_params_virt_addr, 0,
+ sizeof(*p_conn->tcp_upload_params_virt_addr));
+
+ if (!p_conn->r2tq.p_virt_addr)
+ goto nomem;
+ qed_chain_pbl_zero_mem(&p_conn->r2tq);
+
+ if (!p_conn->uhq.p_virt_addr)
+ goto nomem;
+ qed_chain_pbl_zero_mem(&p_conn->uhq);
+
+ if (!p_conn->xhq.p_virt_addr)
+ goto nomem;
+ qed_chain_pbl_zero_mem(&p_conn->xhq);
+
+ return 0;
+nomem:
+ return -ENOMEM;
+}
+
+static int qed_iscsi_allocate_connection(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn **p_out_conn)
+{
+ u16 uhq_num_elements = 0, xhq_num_elements = 0, r2tq_num_elements = 0;
+ struct scsi_terminate_extra_params *p_q_cnts = NULL;
+ struct qed_iscsi_pf_params *p_params = NULL;
+ struct tcp_upload_params *p_tcp = NULL;
+ struct qed_iscsi_conn *p_conn = NULL;
+ int rc = 0;
+
+ /* Try finding a free connection that can be used */
+ spin_lock_bh(&p_hwfn->p_iscsi_info->lock);
+ if (!list_empty(&p_hwfn->p_iscsi_info->free_list))
+ p_conn = list_first_entry(&p_hwfn->p_iscsi_info->free_list,
+ struct qed_iscsi_conn, list_entry);
+ if (p_conn) {
+ list_del(&p_conn->list_entry);
+ spin_unlock_bh(&p_hwfn->p_iscsi_info->lock);
+ *p_out_conn = p_conn;
+ return 0;
+ }
+ spin_unlock_bh(&p_hwfn->p_iscsi_info->lock);
+
+ /* Need to allocate a new connection */
+ p_params = &p_hwfn->pf_params.iscsi_pf_params;
+
+ p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
+ if (!p_conn)
+ return -ENOMEM;
+
+ p_q_cnts = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(*p_q_cnts),
+ &p_conn->queue_cnts_phys_addr,
+ GFP_KERNEL);
+ if (!p_q_cnts)
+ goto nomem_queue_cnts_param;
+ p_conn->queue_cnts_virt_addr = p_q_cnts;
+
+ p_tcp = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(*p_tcp),
+ &p_conn->tcp_upload_params_phys_addr,
+ GFP_KERNEL);
+ if (!p_tcp)
+ goto nomem_upload_param;
+ p_conn->tcp_upload_params_virt_addr = p_tcp;
+
+ r2tq_num_elements = p_params->num_r2tq_pages_in_ring *
+ QED_CHAIN_PAGE_SIZE / 0x80;
+ rc = qed_chain_alloc(p_hwfn->cdev,
+ QED_CHAIN_USE_TO_CONSUME_PRODUCE,
+ QED_CHAIN_MODE_PBL,
+ QED_CHAIN_CNT_TYPE_U16,
+ r2tq_num_elements, 0x80, &p_conn->r2tq);
+ if (rc)
+ goto nomem_r2tq;
+
+ uhq_num_elements = p_params->num_uhq_pages_in_ring *
+ QED_CHAIN_PAGE_SIZE / sizeof(struct iscsi_uhqe);
+ rc = qed_chain_alloc(p_hwfn->cdev,
+ QED_CHAIN_USE_TO_CONSUME_PRODUCE,
+ QED_CHAIN_MODE_PBL,
+ QED_CHAIN_CNT_TYPE_U16,
+ uhq_num_elements,
+ sizeof(struct iscsi_uhqe), &p_conn->uhq);
+ if (rc)
+ goto nomem_uhq;
+
+ xhq_num_elements = uhq_num_elements;
+ rc = qed_chain_alloc(p_hwfn->cdev,
+ QED_CHAIN_USE_TO_CONSUME_PRODUCE,
+ QED_CHAIN_MODE_PBL,
+ QED_CHAIN_CNT_TYPE_U16,
+ xhq_num_elements,
+ sizeof(struct iscsi_xhqe), &p_conn->xhq);
+ if (rc)
+ goto nomem;
+
+ p_conn->free_on_delete = true;
+ *p_out_conn = p_conn;
+ return 0;
+
+nomem:
+ qed_chain_free(p_hwfn->cdev, &p_conn->uhq);
+nomem_uhq:
+ qed_chain_free(p_hwfn->cdev, &p_conn->r2tq);
+nomem_r2tq:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(struct tcp_upload_params),
+ p_conn->tcp_upload_params_virt_addr,
+ p_conn->tcp_upload_params_phys_addr);
+nomem_upload_param:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(struct scsi_terminate_extra_params),
+ p_conn->queue_cnts_virt_addr,
+ p_conn->queue_cnts_phys_addr);
+nomem_queue_cnts_param:
+ kfree(p_conn);
+
+ return -ENOMEM;
+}
+
+static int qed_iscsi_acquire_connection(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_in_conn,
+ struct qed_iscsi_conn **p_out_conn)
+{
+ struct qed_iscsi_conn *p_conn = NULL;
+ int rc = 0;
+ u32 icid;
+
+ spin_lock_bh(&p_hwfn->p_iscsi_info->lock);
+ rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_ISCSI, &icid);
+ spin_unlock_bh(&p_hwfn->p_iscsi_info->lock);
+ if (rc)
+ return rc;
+
+ /* Use input connection or allocate a new one */
+ if (p_in_conn)
+ p_conn = p_in_conn;
+ else
+ rc = qed_iscsi_allocate_connection(p_hwfn, &p_conn);
+
+ if (!rc)
+ rc = qed_iscsi_setup_connection(p_hwfn, p_conn);
+
+ if (rc) {
+ spin_lock_bh(&p_hwfn->p_iscsi_info->lock);
+ qed_cxt_release_cid(p_hwfn, icid);
+ spin_unlock_bh(&p_hwfn->p_iscsi_info->lock);
+ return rc;
+ }
+
+ p_conn->icid = icid;
+ p_conn->conn_id = (u16)icid;
+ p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
+
+ *p_out_conn = p_conn;
+
+ return rc;
+}
+
+static void qed_iscsi_release_connection(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_conn *p_conn)
+{
+ spin_lock_bh(&p_hwfn->p_iscsi_info->lock);
+ list_add_tail(&p_conn->list_entry, &p_hwfn->p_iscsi_info->free_list);
+ qed_cxt_release_cid(p_hwfn, p_conn->icid);
+ spin_unlock_bh(&p_hwfn->p_iscsi_info->lock);
+}
+
+struct qed_iscsi_info *qed_iscsi_alloc(struct qed_hwfn *p_hwfn)
+{
+ struct qed_iscsi_info *p_iscsi_info;
+
+ p_iscsi_info = kzalloc(sizeof(*p_iscsi_info), GFP_KERNEL);
+ if (!p_iscsi_info)
+ return NULL;
+
+ INIT_LIST_HEAD(&p_iscsi_info->free_list);
+ return p_iscsi_info;
+}
+
+void qed_iscsi_setup(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info)
+{
+ spin_lock_init(&p_iscsi_info->lock);
+}
+
+void qed_iscsi_free(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info)
+{
+ kfree(p_iscsi_info);
+}
+
+static void _qed_iscsi_get_tstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct tstorm_iscsi_stats_drv tstats;
+ u32 tstats_addr;
+
+ memset(&tstats, 0, sizeof(tstats));
+ tstats_addr = BAR0_MAP_REG_TSDM_RAM +
+ TSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
+
+ p_stats->iscsi_rx_bytes_cnt =
+ HILO_64_REGPAIR(tstats.iscsi_rx_bytes_cnt);
+ p_stats->iscsi_rx_packet_cnt =
+ HILO_64_REGPAIR(tstats.iscsi_rx_packet_cnt);
+ p_stats->iscsi_cmdq_threshold_cnt =
+ le32_to_cpu(tstats.iscsi_cmdq_threshold_cnt);
+ p_stats->iscsi_rq_threshold_cnt =
+ le32_to_cpu(tstats.iscsi_rq_threshold_cnt);
+ p_stats->iscsi_immq_threshold_cnt =
+ le32_to_cpu(tstats.iscsi_immq_threshold_cnt);
+}
+
+static void _qed_iscsi_get_mstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct mstorm_iscsi_stats_drv mstats;
+ u32 mstats_addr;
+
+ memset(&mstats, 0, sizeof(mstats));
+ mstats_addr = BAR0_MAP_REG_MSDM_RAM +
+ MSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &mstats, mstats_addr, sizeof(mstats));
+
+ p_stats->iscsi_rx_dropped_pdus_task_not_valid =
+ HILO_64_REGPAIR(mstats.iscsi_rx_dropped_pdus_task_not_valid);
+}
+
+static void _qed_iscsi_get_ustats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct ustorm_iscsi_stats_drv ustats;
+ u32 ustats_addr;
+
+ memset(&ustats, 0, sizeof(ustats));
+ ustats_addr = BAR0_MAP_REG_USDM_RAM +
+ USTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &ustats, ustats_addr, sizeof(ustats));
+
+ p_stats->iscsi_rx_data_pdu_cnt =
+ HILO_64_REGPAIR(ustats.iscsi_rx_data_pdu_cnt);
+ p_stats->iscsi_rx_r2t_pdu_cnt =
+ HILO_64_REGPAIR(ustats.iscsi_rx_r2t_pdu_cnt);
+ p_stats->iscsi_rx_total_pdu_cnt =
+ HILO_64_REGPAIR(ustats.iscsi_rx_total_pdu_cnt);
+}
+
+static void _qed_iscsi_get_xstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct xstorm_iscsi_stats_drv xstats;
+ u32 xstats_addr;
+
+ memset(&xstats, 0, sizeof(xstats));
+ xstats_addr = BAR0_MAP_REG_XSDM_RAM +
+ XSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &xstats, xstats_addr, sizeof(xstats));
+
+ p_stats->iscsi_tx_go_to_slow_start_event_cnt =
+ HILO_64_REGPAIR(xstats.iscsi_tx_go_to_slow_start_event_cnt);
+ p_stats->iscsi_tx_fast_retransmit_event_cnt =
+ HILO_64_REGPAIR(xstats.iscsi_tx_fast_retransmit_event_cnt);
+}
+
+static void _qed_iscsi_get_ystats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct ystorm_iscsi_stats_drv ystats;
+ u32 ystats_addr;
+
+ memset(&ystats, 0, sizeof(ystats));
+ ystats_addr = BAR0_MAP_REG_YSDM_RAM +
+ YSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &ystats, ystats_addr, sizeof(ystats));
+
+ p_stats->iscsi_tx_data_pdu_cnt =
+ HILO_64_REGPAIR(ystats.iscsi_tx_data_pdu_cnt);
+ p_stats->iscsi_tx_r2t_pdu_cnt =
+ HILO_64_REGPAIR(ystats.iscsi_tx_r2t_pdu_cnt);
+ p_stats->iscsi_tx_total_pdu_cnt =
+ HILO_64_REGPAIR(ystats.iscsi_tx_total_pdu_cnt);
+}
+
+static void _qed_iscsi_get_pstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_iscsi_stats *p_stats)
+{
+ struct pstorm_iscsi_stats_drv pstats;
+ u32 pstats_addr;
+
+ memset(&pstats, 0, sizeof(pstats));
+ pstats_addr = BAR0_MAP_REG_PSDM_RAM +
+ PSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
+
+ p_stats->iscsi_tx_bytes_cnt =
+ HILO_64_REGPAIR(pstats.iscsi_tx_bytes_cnt);
+ p_stats->iscsi_tx_packet_cnt =
+ HILO_64_REGPAIR(pstats.iscsi_tx_packet_cnt);
+}
+
+static int qed_iscsi_get_stats(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_stats *stats)
+{
+ struct qed_ptt *p_ptt;
+
+ memset(stats, 0, sizeof(*stats));
+
+ p_ptt = qed_ptt_acquire(p_hwfn);
+ if (!p_ptt) {
+ DP_ERR(p_hwfn, "Failed to acquire ptt\n");
+ return -EAGAIN;
+ }
+
+ _qed_iscsi_get_tstats(p_hwfn, p_ptt, stats);
+ _qed_iscsi_get_mstats(p_hwfn, p_ptt, stats);
+ _qed_iscsi_get_ustats(p_hwfn, p_ptt, stats);
+
+ _qed_iscsi_get_xstats(p_hwfn, p_ptt, stats);
+ _qed_iscsi_get_ystats(p_hwfn, p_ptt, stats);
+ _qed_iscsi_get_pstats(p_hwfn, p_ptt, stats);
+
+ qed_ptt_release(p_hwfn, p_ptt);
+
+ return 0;
+}
+
+struct qed_hash_iscsi_con {
+ struct hlist_node node;
+ struct qed_iscsi_conn *con;
+};
+
+static int qed_fill_iscsi_dev_info(struct qed_dev *cdev,
+ struct qed_dev_iscsi_info *info)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+
+ int rc;
+
+ memset(info, 0, sizeof(*info));
+ rc = qed_fill_dev_info(cdev, &info->common);
+
+ info->primary_dbq_rq_addr =
+ qed_iscsi_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
+ info->secondary_bdq_rq_addr =
+ qed_iscsi_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
+
+ return rc;
+}
+
+static void qed_register_iscsi_ops(struct qed_dev *cdev,
+ struct qed_iscsi_cb_ops *ops, void *cookie)
+{
+ cdev->protocol_ops.iscsi = ops;
+ cdev->ops_cookie = cookie;
+}
+
+static struct qed_hash_iscsi_con *qed_iscsi_get_hash(struct qed_dev *cdev,
+ u32 handle)
+{
+ struct qed_hash_iscsi_con *hash_con = NULL;
+
+ if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
+ return NULL;
+
+ hash_for_each_possible(cdev->connections, hash_con, node, handle) {
+ if (hash_con->con->icid == handle)
+ break;
+ }
+
+ if (!hash_con || (hash_con->con->icid != handle))
+ return NULL;
+
+ return hash_con;
+}
+
+static int qed_iscsi_stop(struct qed_dev *cdev)
+{
+ int rc;
+
+ if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
+ DP_NOTICE(cdev, "iscsi already stopped\n");
+ return 0;
+ }
+
+ if (!hash_empty(cdev->connections)) {
+ DP_NOTICE(cdev,
+ "Can't stop iscsi - not all connections were returned\n");
+ return -EINVAL;
+ }
+
+ /* Stop the iscsi */
+ rc = qed_sp_iscsi_func_stop(QED_LEADING_HWFN(cdev),
+ QED_SPQ_MODE_EBLOCK, NULL);
+ cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
+
+ return rc;
+}
+
+static int qed_iscsi_start(struct qed_dev *cdev,
+ struct qed_iscsi_tid *tasks,
+ void *event_context,
+ iscsi_event_cb_t async_event_cb)
+{
+ int rc;
+ struct qed_tid_mem *tid_info;
+
+ if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
+ DP_NOTICE(cdev, "iscsi already started;\n");
+ return 0;
+ }
+
+ rc = qed_sp_iscsi_func_start(QED_LEADING_HWFN(cdev),
+ QED_SPQ_MODE_EBLOCK, NULL, event_context,
+ async_event_cb);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to start iscsi\n");
+ return rc;
+ }
+
+ cdev->flags |= QED_FLAG_STORAGE_STARTED;
+ hash_init(cdev->connections);
+
+ if (!tasks)
+ return 0;
+
+ tid_info = kzalloc(sizeof(*tid_info), GFP_KERNEL);
+
+ if (!tid_info) {
+ qed_iscsi_stop(cdev);
+ return -ENOMEM;
+ }
+
+ rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev),
+ tid_info);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to gather task information\n");
+ qed_iscsi_stop(cdev);
+ kfree(tid_info);
+ return rc;
+ }
+
+ /* Fill task information */
+ tasks->size = tid_info->tid_size;
+ tasks->num_tids_per_block = tid_info->num_tids_per_block;
+ memcpy(tasks->blocks, tid_info->blocks, MAX_TID_BLOCKS);
+
+ kfree(tid_info);
+
+ return 0;
+}
+
+static int qed_iscsi_acquire_conn(struct qed_dev *cdev,
+ u32 *handle,
+ u32 *fw_cid, void __iomem **p_doorbell)
+{
+ struct qed_hash_iscsi_con *hash_con;
+ int rc;
+
+ /* Allocate a hashed connection */
+ hash_con = kzalloc(sizeof(*hash_con), GFP_ATOMIC);
+ if (!hash_con)
+ return -ENOMEM;
+
+ /* Acquire the connection */
+ rc = qed_iscsi_acquire_connection(QED_LEADING_HWFN(cdev), NULL,
+ &hash_con->con);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to acquire Connection\n");
+ kfree(hash_con);
+ return rc;
+ }
+
+ /* Added the connection to hash table */
+ *handle = hash_con->con->icid;
+ *fw_cid = hash_con->con->fw_cid;
+ hash_add(cdev->connections, &hash_con->node, *handle);
+
+ if (p_doorbell)
+ *p_doorbell = qed_iscsi_get_db_addr(QED_LEADING_HWFN(cdev),
+ *handle);
+
+ return 0;
+}
+
+static int qed_iscsi_release_conn(struct qed_dev *cdev, u32 handle)
+{
+ struct qed_hash_iscsi_con *hash_con;
+
+ hash_con = qed_iscsi_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ hlist_del(&hash_con->node);
+ qed_iscsi_release_connection(QED_LEADING_HWFN(cdev), hash_con->con);
+ kfree(hash_con);
+
+ return 0;
+}
+
+static int qed_iscsi_offload_conn(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_iscsi_params_offload *conn_info)
+{
+ struct qed_hash_iscsi_con *hash_con;
+ struct qed_iscsi_conn *con;
+
+ hash_con = qed_iscsi_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ /* Update the connection with information from the params */
+ con = hash_con->con;
+
+ ether_addr_copy(con->local_mac, conn_info->src.mac);
+ ether_addr_copy(con->remote_mac, conn_info->dst.mac);
+ memcpy(con->local_ip, conn_info->src.ip, sizeof(con->local_ip));
+ memcpy(con->remote_ip, conn_info->dst.ip, sizeof(con->remote_ip));
+ con->local_port = conn_info->src.port;
+ con->remote_port = conn_info->dst.port;
+
+ con->layer_code = conn_info->layer_code;
+ con->sq_pbl_addr = conn_info->sq_pbl_addr;
+ con->initial_ack = conn_info->initial_ack;
+ con->vlan_id = conn_info->vlan_id;
+ con->tcp_flags = conn_info->tcp_flags;
+ con->ip_version = conn_info->ip_version;
+ con->default_cq = conn_info->default_cq;
+ con->ka_max_probe_cnt = conn_info->ka_max_probe_cnt;
+ con->dup_ack_theshold = conn_info->dup_ack_theshold;
+ con->rcv_next = conn_info->rcv_next;
+ con->snd_una = conn_info->snd_una;
+ con->snd_next = conn_info->snd_next;
+ con->snd_max = conn_info->snd_max;
+ con->snd_wnd = conn_info->snd_wnd;
+ con->rcv_wnd = conn_info->rcv_wnd;
+ con->snd_wl1 = conn_info->snd_wl1;
+ con->cwnd = conn_info->cwnd;
+ con->ss_thresh = conn_info->ss_thresh;
+ con->srtt = conn_info->srtt;
+ con->rtt_var = conn_info->rtt_var;
+ con->ts_time = conn_info->ts_time;
+ con->ts_recent = conn_info->ts_recent;
+ con->ts_recent_age = conn_info->ts_recent_age;
+ con->total_rt = conn_info->total_rt;
+ con->ka_timeout_delta = conn_info->ka_timeout_delta;
+ con->rt_timeout_delta = conn_info->rt_timeout_delta;
+ con->dup_ack_cnt = conn_info->dup_ack_cnt;
+ con->snd_wnd_probe_cnt = conn_info->snd_wnd_probe_cnt;
+ con->ka_probe_cnt = conn_info->ka_probe_cnt;
+ con->rt_cnt = conn_info->rt_cnt;
+ con->flow_label = conn_info->flow_label;
+ con->ka_timeout = conn_info->ka_timeout;
+ con->ka_interval = conn_info->ka_interval;
+ con->max_rt_time = conn_info->max_rt_time;
+ con->initial_rcv_wnd = conn_info->initial_rcv_wnd;
+ con->ttl = conn_info->ttl;
+ con->tos_or_tc = conn_info->tos_or_tc;
+ con->remote_port = conn_info->remote_port;
+ con->local_port = conn_info->local_port;
+ con->mss = conn_info->mss;
+ con->snd_wnd_scale = conn_info->snd_wnd_scale;
+ con->rcv_wnd_scale = conn_info->rcv_wnd_scale;
+ con->ts_ticks_per_second = conn_info->ts_ticks_per_second;
+ con->da_timeout_value = conn_info->da_timeout_value;
+ con->ack_frequency = conn_info->ack_frequency;
+
+ /* Set default values on other connection fields */
+ con->offl_flags = 0x1;
+
+ return qed_sp_iscsi_conn_offload(QED_LEADING_HWFN(cdev), con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_iscsi_update_conn(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_iscsi_params_update *conn_info)
+{
+ struct qed_hash_iscsi_con *hash_con;
+ struct qed_iscsi_conn *con;
+
+ hash_con = qed_iscsi_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ /* Update the connection with information from the params */
+ con = hash_con->con;
+ con->update_flag = conn_info->update_flag;
+ con->max_seq_size = conn_info->max_seq_size;
+ con->max_recv_pdu_length = conn_info->max_recv_pdu_length;
+ con->max_send_pdu_length = conn_info->max_send_pdu_length;
+ con->first_seq_length = conn_info->first_seq_length;
+ con->exp_stat_sn = conn_info->exp_stat_sn;
+
+ return qed_sp_iscsi_conn_update(QED_LEADING_HWFN(cdev), con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_iscsi_clear_conn_sq(struct qed_dev *cdev, u32 handle)
+{
+ struct qed_hash_iscsi_con *hash_con;
+
+ hash_con = qed_iscsi_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ return qed_sp_iscsi_conn_clear_sq(QED_LEADING_HWFN(cdev),
+ hash_con->con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_iscsi_destroy_conn(struct qed_dev *cdev,
+ u32 handle, u8 abrt_conn)
+{
+ struct qed_hash_iscsi_con *hash_con;
+
+ hash_con = qed_iscsi_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ hash_con->con->abortive_dsconnect = abrt_conn;
+
+ return qed_sp_iscsi_conn_terminate(QED_LEADING_HWFN(cdev),
+ hash_con->con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_iscsi_stats(struct qed_dev *cdev, struct qed_iscsi_stats *stats)
+{
+ return qed_iscsi_get_stats(QED_LEADING_HWFN(cdev), stats);
+}
+
+static const struct qed_iscsi_ops qed_iscsi_ops_pass = {
+ .common = &qed_common_ops_pass,
+ .ll2 = &qed_ll2_ops_pass,
+ .fill_dev_info = &qed_fill_iscsi_dev_info,
+ .register_ops = &qed_register_iscsi_ops,
+ .start = &qed_iscsi_start,
+ .stop = &qed_iscsi_stop,
+ .acquire_conn = &qed_iscsi_acquire_conn,
+ .release_conn = &qed_iscsi_release_conn,
+ .offload_conn = &qed_iscsi_offload_conn,
+ .update_conn = &qed_iscsi_update_conn,
+ .destroy_conn = &qed_iscsi_destroy_conn,
+ .clear_sq = &qed_iscsi_clear_conn_sq,
+ .get_stats = &qed_iscsi_stats,
+};
+
+const struct qed_iscsi_ops *qed_get_iscsi_ops()
+{
+ return &qed_iscsi_ops_pass;
+}
+EXPORT_SYMBOL(qed_get_iscsi_ops);
+
+void qed_put_iscsi_ops(void)
+{
+}
+EXPORT_SYMBOL(qed_put_iscsi_ops);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iscsi.h b/drivers/net/ethernet/qlogic/qed/qed_iscsi.h
new file mode 100644
index 0000000..269848c
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_iscsi.h
@@ -0,0 +1,52 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QED_ISCSI_H
+#define _QED_ISCSI_H
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/qed/tcp_common.h>
+#include <linux/qed/qed_iscsi_if.h>
+#include <linux/qed/qed_chain.h>
+#include "qed.h"
+#include "qed_hsi.h"
+#include "qed_mcp.h"
+#include "qed_sp.h"
+
+struct qed_iscsi_info {
+ spinlock_t lock;
+ struct list_head free_list;
+ u16 max_num_outstanding_tasks;
+ void *event_context;
+ iscsi_event_cb_t event_cb;
+};
+
+#ifdef CONFIG_QED_LL2
+extern const struct qed_ll2_ops qed_ll2_ops_pass;
+#endif
+
+#if IS_ENABLED(CONFIG_QEDI)
+struct qed_iscsi_info *qed_iscsi_alloc(struct qed_hwfn *p_hwfn);
+
+void qed_iscsi_setup(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info);
+
+void qed_iscsi_free(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info);
+#else /* IS_ENABLED(CONFIG_QEDI) */
+static inline struct qed_iscsi_info *qed_iscsi_alloc(
+ struct qed_hwfn *p_hwfn) { return NULL; }
+static inline void qed_iscsi_setup(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info) {}
+static inline void qed_iscsi_free(struct qed_hwfn *p_hwfn,
+ struct qed_iscsi_info *p_iscsi_info) {}
+#endif /* IS_ENABLED(CONFIG_QEDI) */
+
+#endif
diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.c b/drivers/net/ethernet/qlogic/qed/qed_l2.c
index 1e3a16e..25b3624 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c
@@ -2195,6 +2195,5 @@ const struct qed_eth_ops *qed_get_eth_ops(void)
void qed_put_eth_ops(void)
{
- /* TODO - reference count for module? */
}
EXPORT_SYMBOL(qed_put_eth_ops);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index 63e1a1b..e5da1b2 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -1516,6 +1516,7 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
enum qed_ll2_conn_type conn_type;
struct qed_ptt *p_ptt;
int rc, i;
+ u8 gsi_enable = 1;
/* Initialize LL2 locks & lists */
INIT_LIST_HEAD(&cdev->ll2->list);
@@ -1547,6 +1548,7 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
switch (QED_LEADING_HWFN(cdev)->hw_info.personality) {
case QED_PCI_ISCSI:
conn_type = QED_LL2_TYPE_ISCSI;
+ gsi_enable = 0;
break;
case QED_PCI_ETH_ROCE:
conn_type = QED_LL2_TYPE_ROCE;
@@ -1563,7 +1565,7 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
ll2_info.rx_vlan_removal_en = params->rx_vlan_stripping;
ll2_info.tx_tc = 0;
ll2_info.tx_dest = CORE_TX_DEST_NW;
- ll2_info.gsi_enable = 1;
+ ll2_info.gsi_enable = gsi_enable;
rc = qed_ll2_acquire_connection(QED_LEADING_HWFN(cdev), &ll2_info,
QED_LL2_RX_SIZE, QED_LL2_TX_SIZE,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
index b414a05..9754420 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
@@ -82,6 +82,8 @@
0x1c80000UL
#define BAR0_MAP_REG_XSDM_RAM \
0x1e00000UL
+#define BAR0_MAP_REG_YSDM_RAM \
+ 0x1e80000UL
#define NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF \
0x5011f4UL
#define PRS_REG_SEARCH_TCP \
diff --git a/drivers/net/ethernet/qlogic/qed/qed_spq.c b/drivers/net/ethernet/qlogic/qed/qed_spq.c
index 019960b..dfc4148 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_spq.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_spq.c
@@ -24,6 +24,7 @@
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_int.h"
+#include "qed_iscsi.h"
#include "qed_mcp.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"
@@ -277,6 +278,20 @@ static int qed_spq_hw_post(struct qed_hwfn *p_hwfn,
return qed_sriov_eqe_event(p_hwfn,
p_eqe->opcode,
p_eqe->echo, &p_eqe->data);
+ case PROTOCOLID_ISCSI:
+ if (!IS_ENABLED(CONFIG_QEDI))
+ return -EINVAL;
+
+ if (p_hwfn->p_iscsi_info->event_cb) {
+ struct qed_iscsi_info *p_iscsi = p_hwfn->p_iscsi_info;
+
+ return p_iscsi->event_cb(p_iscsi->event_context,
+ p_eqe->opcode, &p_eqe->data);
+ } else {
+ DP_NOTICE(p_hwfn,
+ "iSCSI async completion is not set\n");
+ return -EINVAL;
+ }
default:
DP_NOTICE(p_hwfn,
"Unknown Async completion for protocol: %d\n",
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index ea095b4..4b454f4 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -166,6 +166,7 @@ struct qed_iscsi_pf_params {
u32 max_cwnd;
u16 cq_num_entries;
u16 cmdq_num_entries;
+ u32 two_msl_timer;
u16 dup_ack_threshold;
u16 tx_sws_timer;
u16 min_rto;
@@ -275,6 +276,7 @@ struct qed_dev_info {
enum qed_sb_type {
QED_SB_TYPE_L2_QUEUE,
QED_SB_TYPE_CNQ,
+ QED_SB_TYPE_STORAGE,
};
enum qed_protocol {
diff --git a/include/linux/qed/qed_iscsi_if.h b/include/linux/qed/qed_iscsi_if.h
new file mode 100644
index 0000000..d279124
--- /dev/null
+++ b/include/linux/qed/qed_iscsi_if.h
@@ -0,0 +1,229 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QED_ISCSI_IF_H
+#define _QED_ISCSI_IF_H
+#include <linux/types.h>
+#include <linux/qed/qed_if.h>
+
+typedef int (*iscsi_event_cb_t) (void *context,
+ u8 fw_event_code, void *fw_handle);
+struct qed_iscsi_stats {
+ u64 iscsi_rx_bytes_cnt;
+ u64 iscsi_rx_packet_cnt;
+ u64 iscsi_rx_new_ooo_isle_events_cnt;
+ u32 iscsi_cmdq_threshold_cnt;
+ u32 iscsi_rq_threshold_cnt;
+ u32 iscsi_immq_threshold_cnt;
+
+ u64 iscsi_rx_dropped_pdus_task_not_valid;
+
+ u64 iscsi_rx_data_pdu_cnt;
+ u64 iscsi_rx_r2t_pdu_cnt;
+ u64 iscsi_rx_total_pdu_cnt;
+
+ u64 iscsi_tx_go_to_slow_start_event_cnt;
+ u64 iscsi_tx_fast_retransmit_event_cnt;
+
+ u64 iscsi_tx_data_pdu_cnt;
+ u64 iscsi_tx_r2t_pdu_cnt;
+ u64 iscsi_tx_total_pdu_cnt;
+
+ u64 iscsi_tx_bytes_cnt;
+ u64 iscsi_tx_packet_cnt;
+};
+
+struct qed_dev_iscsi_info {
+ struct qed_dev_info common;
+
+ void __iomem *primary_dbq_rq_addr;
+ void __iomem *secondary_bdq_rq_addr;
+};
+
+struct qed_iscsi_id_params {
+ u8 mac[ETH_ALEN];
+ u32 ip[4];
+ u16 port;
+};
+
+struct qed_iscsi_params_offload {
+ u8 layer_code;
+ dma_addr_t sq_pbl_addr;
+ u32 initial_ack;
+
+ struct qed_iscsi_id_params src;
+ struct qed_iscsi_id_params dst;
+ u16 vlan_id;
+ u8 tcp_flags;
+ u8 ip_version;
+ u8 default_cq;
+
+ u8 ka_max_probe_cnt;
+ u8 dup_ack_theshold;
+ u32 rcv_next;
+ u32 snd_una;
+ u32 snd_next;
+ u32 snd_max;
+ u32 snd_wnd;
+ u32 rcv_wnd;
+ u32 snd_wl1;
+ u32 cwnd;
+ u32 ss_thresh;
+ u16 srtt;
+ u16 rtt_var;
+ u32 ts_time;
+ u32 ts_recent;
+ u32 ts_recent_age;
+ u32 total_rt;
+ u32 ka_timeout_delta;
+ u32 rt_timeout_delta;
+ u8 dup_ack_cnt;
+ u8 snd_wnd_probe_cnt;
+ u8 ka_probe_cnt;
+ u8 rt_cnt;
+ u32 flow_label;
+ u32 ka_timeout;
+ u32 ka_interval;
+ u32 max_rt_time;
+ u32 initial_rcv_wnd;
+ u8 ttl;
+ u8 tos_or_tc;
+ u16 remote_port;
+ u16 local_port;
+ u16 mss;
+ u8 snd_wnd_scale;
+ u8 rcv_wnd_scale;
+ u32 ts_ticks_per_second;
+ u16 da_timeout_value;
+ u8 ack_frequency;
+};
+
+struct qed_iscsi_params_update {
+ u8 update_flag;
+#define QED_ISCSI_CONN_HD_EN BIT(0)
+#define QED_ISCSI_CONN_DD_EN BIT(1)
+#define QED_ISCSI_CONN_INITIAL_R2T BIT(2)
+#define QED_ISCSI_CONN_IMMEDIATE_DATA BIT(3)
+
+ u32 max_seq_size;
+ u32 max_recv_pdu_length;
+ u32 max_send_pdu_length;
+ u32 first_seq_length;
+ u32 exp_stat_sn;
+};
+
+#define MAX_TID_BLOCKS_ISCSI (512)
+struct qed_iscsi_tid {
+ u32 size; /* In bytes per task */
+ u32 num_tids_per_block;
+ u8 *blocks[MAX_TID_BLOCKS_ISCSI];
+};
+
+struct qed_iscsi_cb_ops {
+ struct qed_common_cb_ops common;
+};
+
+/**
+ * struct qed_iscsi_ops - qed iSCSI operations.
+ * @common: common operations pointer
+ * @ll2: light L2 operations pointer
+ * @fill_dev_info: fills iSCSI specific information
+ * @param cdev
+ * @param info
+ * @return 0 on sucesss, otherwise error value.
+ * @register_ops: register iscsi operations
+ * @param cdev
+ * @param ops - specified using qed_iscsi_cb_ops
+ * @param cookie - driver private
+ * @start: iscsi in FW
+ * @param cdev
+ * @param tasks - qed will fill information about tasks
+ * return 0 on success, otherwise error value.
+ * @stop: iscsi in FW
+ * @param cdev
+ * return 0 on success, otherwise error value.
+ * @acquire_conn: acquire a new iscsi connection
+ * @param cdev
+ * @param handle - qed will fill handle that should be
+ * used henceforth as identifier of the
+ * connection.
+ * @param p_doorbell - qed will fill the address of the
+ * doorbell.
+ * @return 0 on sucesss, otherwise error value.
+ * @release_conn: release a previously acquired iscsi connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @return 0 on success, otherwise error value.
+ * @offload_conn: configures an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @param conn_info - the configuration to use for the
+ * offload.
+ * @return 0 on success, otherwise error value.
+ * @update_conn: updates an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @param conn_info - the configuration to use for the
+ * offload.
+ * @return 0 on success, otherwise error value.
+ * @destroy_conn: stops an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @return 0 on success, otherwise error value.
+ * @clear_sq: clear all task in sq
+ * @param cdev
+ * @param handle - the connection handle.
+ * @return 0 on success, otherwise error value.
+ * @get_stats: iSCSI related statistics
+ * @param cdev
+ * @param stats - pointer to struck that would be filled
+ * we stats
+ * @return 0 on success, error otherwise.
+ */
+struct qed_iscsi_ops {
+ const struct qed_common_ops *common;
+
+ const struct qed_ll2_ops *ll2;
+
+ int (*fill_dev_info)(struct qed_dev *cdev,
+ struct qed_dev_iscsi_info *info);
+
+ void (*register_ops)(struct qed_dev *cdev,
+ struct qed_iscsi_cb_ops *ops, void *cookie);
+
+ int (*start)(struct qed_dev *cdev,
+ struct qed_iscsi_tid *tasks,
+ void *event_context, iscsi_event_cb_t async_event_cb);
+
+ int (*stop)(struct qed_dev *cdev);
+
+ int (*acquire_conn)(struct qed_dev *cdev,
+ u32 *handle,
+ u32 *fw_cid, void __iomem **p_doorbell);
+
+ int (*release_conn)(struct qed_dev *cdev, u32 handle);
+
+ int (*offload_conn)(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_iscsi_params_offload *conn_info);
+
+ int (*update_conn)(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_iscsi_params_update *conn_info);
+
+ int (*destroy_conn)(struct qed_dev *cdev, u32 handle, u8 abrt_conn);
+
+ int (*clear_sq)(struct qed_dev *cdev, u32 handle);
+
+ int (*get_stats)(struct qed_dev *cdev,
+ struct qed_iscsi_stats *stats);
+};
+
+const struct qed_iscsi_ops *qed_get_iscsi_ops(void);
+void qed_put_iscsi_ops(void);
+#endif
--
1.8.3.1
^ permalink raw reply related
* [PATCH v2 0/6] Add QLogic FastLinQ iSCSI (qedi) driver.
From: Manish Rangankar @ 2016-11-08 6:56 UTC (permalink / raw)
To: martin.petersen, lduncan, cleech
Cc: linux-scsi, netdev, QLogic-Storage-Upstream, Yuval.Mintz
This series introduces hardware offload iSCSI initiator driver for the
41000 Series Converged Network Adapters (579xx chip) by Qlogic. The overall
driver design includes a common module ('qed') and protocol specific
dependent modules ('qedi' for iSCSI).
This is an open iSCSI driver, modifications to open iSCSI user components
'iscsid', 'iscsiuio', etc. are required for the solution to work. The user
space changes are also in the process of being submitted.
https://groups.google.com/forum/#!forum/open-iscsi
The 'qed' common module, under drivers/net/ethernet/qlogic/qed/, is
enhanced with functionality required for the iSCSI support. This series
is based on:
net tree base: Merge of net and net-next as of 10/31/2016
Changes from RFC v1:
RFC v1 comments reference:
http://marc.info/?l=linux-scsi&w=2&r=1&s=qed&q=b
The following comments were incorporated:-
1. MAC copying to use unaligned macro in qed_sp_iscsi_conn_offload()
2. Contain scattered IS_ENABLED() check inside header file.
3. Reduce indent in qed_iscsi_start() by changing logic slightly.
4. Use kernel-doc style documentation.
5. Shorten qed_ll2_lb_rxq_completion() by removing queue handling as
a separate function.
6. Reduce code duplication by creating qed_ooo_submit_[tr]x_buffers().
7. Remove dynamic memory allocation in ISR for solicited packets.
8. Rearrange qedi_process_iscsi_error() code to use mapping values
onto strings.
9. Use kernel-doc style documentation in qedi_hsi.h
10. Change pr_crit to pr_err.
11. Remove unnecessary typecasting.
12. Change kmalloc to kmalloc_array in qedi_setup_cid_que().
13. Rearrange firmware and driver version information print.
14. Change variable names from scsi_lun to other, as scsi_lun struct exists.
15. Introduce QEDI_U64_HI and QEDI_U64_LO macros for code readability.
16. Move scsi_dma_unmap above sge_valid in qedi_iscsi_unmap_sg_list().
17. Introduce QEDI_OFLD_WAIT_STATE for code readability.
18. Add cond_resched() in per_cpu_io_thread to avoid soft-lockups.
19. Change trace_io to accomodate all the scsi commands.
20. Spell correction in comments section.
The following comments were not incorporated:-
1. Remove "QLogic qed NIC Driver" comment
- Applies to drivers/net/ethernet/qlogic/qed/*.[ch]
- This will be submitted as a separate patch, as there are multiple
files (files that are not part of this series) need to be updated
and this change is not related to this series.
2. Update copyright
- Applies to drivers/net/ethernet/qlogic/qed/*.[ch]
- Same as above, will submit a separate patch, as multiple files
need to be updated and this change is not related to this series.
3. Remove adding and removing of QEDI Kconfig entries. Added by
"qed" patch and removed and re-added by "qedi" patch.
- QEDI driver is composed of two parts, the common module (qed) and
the protocol module (qedi), which goes in net and scsi trees
respectively. The qed module conditionally enables certain
functionality for the QEDI module in qed; hence the Kconfig entry was
added for QEDI by qed; otherwise it looks odd to use CONFIG_QEDI
in qed. So, the remove and re-add is left as is.
4. Workqueue implementation in completion path.
- This change will be submitted as a separate patch, as it requires
complete performance validation cycle.
5. IRQ handling changes from Christoph H. irq work.
- This change will also be subitted as a separate patch, as it also
require change in qed.ko module which will affect other protocol
drivers (qedr, qede) as well.
- This change will be integral part of MQ/MQ-TAG infrastructure that
we want to employ in our qedi driver.
6. Using multiple memory barriers.
- We kept both memory barriers as a failsafe, as for some architectures
the call is the same but on others they are two different assembly
operations. We have updated patch with same information in comments.
Manish Rangankar (4):
qedi: Add QLogic FastLinQ offload iSCSI driver framework.
qedi: Add LL2 iSCSI interface for offload iSCSI.
qedi: Add support for iSCSI session management.
qedi: Add support for data path.
Yuval Mintz (2):
qed: Add support for hardware offloaded iSCSI.
qed: Add iSCSI out of order packet handling.
MAINTAINERS | 6 +
drivers/net/ethernet/qlogic/Kconfig | 15 +
drivers/net/ethernet/qlogic/qed/Makefile | 1 +
drivers/net/ethernet/qlogic/qed/qed.h | 8 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 22 +
drivers/net/ethernet/qlogic/qed/qed_int.h | 1 -
drivers/net/ethernet/qlogic/qed/qed_iscsi.c | 1276 +++++++++++++
drivers/net/ethernet/qlogic/qed/qed_iscsi.h | 52 +
drivers/net/ethernet/qlogic/qed/qed_l2.c | 1 -
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 507 ++++-
drivers/net/ethernet/qlogic/qed/qed_ll2.h | 9 +
drivers/net/ethernet/qlogic/qed/qed_ooo.c | 501 +++++
drivers/net/ethernet/qlogic/qed/qed_ooo.h | 173 ++
drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 2 +
drivers/net/ethernet/qlogic/qed/qed_roce.c | 1 +
drivers/net/ethernet/qlogic/qed/qed_spq.c | 24 +
drivers/scsi/Kconfig | 1 +
drivers/scsi/Makefile | 1 +
drivers/scsi/qedi/Kconfig | 10 +
drivers/scsi/qedi/Makefile | 5 +
drivers/scsi/qedi/qedi.h | 364 ++++
drivers/scsi/qedi/qedi_dbg.c | 143 ++
drivers/scsi/qedi/qedi_dbg.h | 144 ++
drivers/scsi/qedi/qedi_debugfs.c | 244 +++
drivers/scsi/qedi/qedi_fw.c | 2378 ++++++++++++++++++++++++
drivers/scsi/qedi/qedi_gbl.h | 73 +
drivers/scsi/qedi/qedi_hsi.h | 52 +
drivers/scsi/qedi/qedi_iscsi.c | 1624 ++++++++++++++++
drivers/scsi/qedi/qedi_iscsi.h | 232 +++
drivers/scsi/qedi/qedi_main.c | 2143 +++++++++++++++++++++
drivers/scsi/qedi/qedi_sysfs.c | 52 +
drivers/scsi/qedi/qedi_version.h | 14 +
include/linux/qed/qed_if.h | 2 +
include/linux/qed/qed_iscsi_if.h | 229 +++
34 files changed, 10297 insertions(+), 13 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_iscsi.c
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_iscsi.h
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_ooo.c
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_ooo.h
create mode 100644 drivers/scsi/qedi/Kconfig
create mode 100644 drivers/scsi/qedi/Makefile
create mode 100644 drivers/scsi/qedi/qedi.h
create mode 100644 drivers/scsi/qedi/qedi_dbg.c
create mode 100644 drivers/scsi/qedi/qedi_dbg.h
create mode 100644 drivers/scsi/qedi/qedi_debugfs.c
create mode 100644 drivers/scsi/qedi/qedi_fw.c
create mode 100644 drivers/scsi/qedi/qedi_gbl.h
create mode 100644 drivers/scsi/qedi/qedi_hsi.h
create mode 100644 drivers/scsi/qedi/qedi_iscsi.c
create mode 100644 drivers/scsi/qedi/qedi_iscsi.h
create mode 100644 drivers/scsi/qedi/qedi_main.c
create mode 100644 drivers/scsi/qedi/qedi_sysfs.c
create mode 100644 drivers/scsi/qedi/qedi_version.h
create mode 100644 include/linux/qed/qed_iscsi_if.h
--
1.8.3.1
^ permalink raw reply
* RE: [v15, 3/7] powerpc/fsl: move mpc85xx.h to include/linux/fsl
From: Y.B. Lu @ 2016-11-08 6:49 UTC (permalink / raw)
To: Arnd Bergmann
Cc: linuxppc-dev@lists.ozlabs.org, linux-mmc@vger.kernel.org,
ulf.hansson@linaro.org, Scott Wood, Mark Rutland,
Greg Kroah-Hartman, X.B. Xie, M.H. Lian,
linux-i2c@vger.kernel.org, linux-clk@vger.kernel.org, Qiang Zhao,
Russell King, Bhupesh Sharma, Joerg Roedel, Claudiu Manoil,
devicetree@vger.kernel.org, Rob Herring
In-Reply-To: <1543282.vWjeo4ynTa@wuerfel>
Hi Arnd,
> -----Original Message-----
> From: Arnd Bergmann [mailto:arnd@arndb.de]
> Sent: Tuesday, November 08, 2016 5:20 AM
> To: Y.B. Lu
> Cc: linuxppc-dev@lists.ozlabs.org; linux-mmc@vger.kernel.org;
> ulf.hansson@linaro.org; Scott Wood; Mark Rutland; Greg Kroah-Hartman; X.B.
> Xie; M.H. Lian; linux-i2c@vger.kernel.org; linux-clk@vger.kernel.org;
> Qiang Zhao; Russell King; Bhupesh Sharma; Joerg Roedel; Claudiu Manoil;
> devicetree@vger.kernel.org; Rob Herring; Santosh Shilimkar; linux-arm-
> kernel@lists.infradead.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; Leo Li; iommu@lists.linux-foundation.org; Kumar
> Gala
> Subject: Re: [v15, 3/7] powerpc/fsl: move mpc85xx.h to include/linux/fsl
>
> On Monday, October 31, 2016 9:35:33 AM CET Y.B. Lu wrote:
> > >
> > > I don't see any of the contents of this header referenced by the soc
> > > driver any more. I think you can just drop this patch.
> > >
> >
> > [Lu Yangbo-B47093] This header file was included by guts.c.
> > The guts driver used macro SVR_MAJ/SVR_MIN for calculation.
> >
> > This header file was for powerpc arch before. And this patch is to
> > made it as common header file for both ARM and PPC.
> > Sooner or later this is needed.
>
> Let's discuss it once we actually need the header then, ok?
[Lu Yangbo-B47093] As I said, this header file was included by guts.c in patch 4.
The guts driver used macro SVR_MAJ/SVR_MIN for calculation which were defined in this header file.
Did you suggest we dropped this patch and just calculated them in driver?
Thanks :)
>
> Arnd
^ permalink raw reply
* Re: [PATCH v4] Net Driver: Add Cypress GX3 VID=04b4 PID=3610.
From: Greg KH @ 2016-11-08 6:48 UTC (permalink / raw)
To: Chris Roth; +Cc: linux-usb, netdev, linux-kernel, Allan Chou, Artjom Simon
In-Reply-To: <CAPZMiRa0kYyPFQ77L5y4NgxxH85iuMAjODV2iCzd-5OjyGfNuw@mail.gmail.com>
On Mon, Nov 07, 2016 at 04:44:20PM -0600, Chris Roth wrote:
> From: Allan Chou <allan@asix.com.tw>
>
> Add support for Cypress GX3 SuperSpeed to Gigabit Ethernet
> Bridge Controller (Vendor=04b4 ProdID=3610).
>
> Patch verified on x64 linux kernel 4.7.4, 4.8.6, 4.9-rc4 systems
> with the Kensington SD4600P USB-C Universal Dock with Power,
> which uses the Cypress GX3 SuperSpeed to Gigabit Ethernet Bridge
> Controller.
>
> A similar patch was signed-off and tested-by Allan Chou
> <allan@asix.com.tw> on 2015-12-01.
>
> Allan verified his similar patch on x86 Linux kernel 4.1.6 system
> with Cypress GX3 SuperSpeed to Gigabit Ethernet Bridge Controller.
>
> Tested-by: Allan Chou <allan@asix.com.tw>
> Tested-by: Chris Roth <chris.roth@usask.ca>
> Tested-by: Artjom Simon <artjom.simon@gmail.com>
>
> Signed-off-by: Allan Chou <allan@asix.com.tw>
> Signed-off-by: Chris Roth <chris.roth@usask.ca>
> ---
> drivers/net/usb/ax88179_178a.c | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
> index e6338c1..8a6675d 100644
> --- a/drivers/net/usb/ax88179_178a.c
> +++ b/drivers/net/usb/ax88179_178a.c
> @@ -1656,6 +1656,19 @@ static const struct driver_info ax88178a_info = {
> .tx_fixup = ax88179_tx_fixup,
> };
>
> +static const struct driver_info cypress_GX3_info = {
> + .description = "Cypress GX3 SuperSpeed to Gigabit Ethernet Controller",
> + .bind = ax88179_bind,
> + .unbind = ax88179_unbind,
> + .status = ax88179_status,
> + .link_reset = ax88179_link_reset,
> + .reset = ax88179_reset,
> + .stop = ax88179_stop,
> + .flags = FLAG_ETHER | FLAG_FRAMING_AX,
> + .rx_fixup = ax88179_rx_fixup,
> + .tx_fixup = ax88179_tx_fixup,
> +};
Your tabs got eaten and converted to spaces, making this patch
impossible to apply :(
And you forgot to list what changed from v3, please put that below the
--- line.
thanks,
greg k-h
^ permalink raw reply
* Re: linux-next: manual merge of the net-next tree with the net tree
From: Cong Wang @ 2016-11-08 6:34 UTC (permalink / raw)
To: Stephen Rothwell
Cc: David Miller, Networking, linux-next, LKML, Johannes Berg
In-Reply-To: <20161108122537.40fa6e58@canb.auug.org.au>
On Mon, Nov 7, 2016 at 5:25 PM, Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> Hi all,
>
> Today's linux-next merge of the net-next tree got a conflict in:
>
> net/netlink/genetlink.c
>
> between commit:
>
> 00ffc1ba02d8 ("genetlink: fix a memory leak on error path")
>
> from the net tree and commit:
>
> 2ae0f17df1cd ("genetlink: use idr to track families")
>
> from the net-next tree.
>
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging. You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
Looks good to me.
Thanks!
^ permalink raw reply
* Re: [net-next PATCH 3/3] qdisc: catch misconfig of attaching qdisc to tx_queue_len zero device
From: Maciej Żenczykowski @ 2016-11-08 6:14 UTC (permalink / raw)
To: Jesper Dangaard Brouer
Cc: Linux NetDev, Phil Sutter, Robert Olsson, Jamal Hadi Salim
In-Reply-To: <20161103135611.28737.39840.stgit@firesoul>
Just FYI:
I'm tangentially aware of internal Google code that:
- expects a bonding device running HTB with non-zero txqueuelen
- wants to remove HTB and get a noqueue interface (the normal default
for bonding)
The code currently removes HTB, which gets us to mq, sets txqueuelen
to 0, adds a pfifo, removes the pfifo, which gets us to noqueue.
After this patch this would ?possibly? break (adding pfifo, would
change txqueuelen, so when we remove it we wouldn't end up with
noqueue).
>From what I fuzzily recall, HTB with txquelelen == 0 drops traffic
hard, while pfifo continues to function, hence the ordering...
Obviously our code can be fixed, but I'm worried there's a more
generic backwards compatibility problem here.
(note: this is mostly about 3.11 and 4.3 and might no longer be
relevant with 4.10... maybe the new kernel's default qdisc selection
logic doesn't depend on txqueuelen and checks the flag instead???)
^ permalink raw reply
* Re: [Intel-wired-lan] [PATCH] igb: drop field "tail" of struct igb_ring
From: Cao jin @ 2016-11-08 6:07 UTC (permalink / raw)
To: Alexander Duyck
Cc: linux-kernel@vger.kernel.org, Netdev,
Izumi, Taku/泉 拓, intel-wired-lan
In-Reply-To: <CAKgT0UcZiJJbb+-vCkhL=A2X9CB+ekp8-CnTZznEB+NBMYALFg@mail.gmail.com>
On 11/08/2016 12:12 PM, Alexander Duyck wrote:
>
>
> On Monday, November 7, 2016, Cao jin <caoj.fnst@cn.fujitsu.com
> <mailto:caoj.fnst@cn.fujitsu.com>> wrote:
>
>
>
> We removed head because it isn't really accessed very often, it is only
> really used for when the ring is configured. Tail is accessed every
> time we add a descriptor to a ring. The pointer chasing from ring to
> netdev to adapter to hw is expensive. That is one of the rasons why
> we cache the pointer to the tail register.
I see. I can submit the patch as you suggested.
>
> Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
> ---
> drivers/net/ethernet/intel/igb/igb.h | 1 -
> drivers/net/ethernet/intel/igb/igb_main.c | 16
> +++++++++-------
>
> hw->hw_addr could be alterred to NULL(in igb_rd32), this is why
> writel oops the kernel, you give a fine solution.
>
> But from the oops message, we can find, register reading returns all
> F's, I also have a question want to consult: when igb device is
> reset, would reading register(no matter config space or non-PCIe
> configuration registers) during reset returns all F's? (I guess this
> is the core of my issue)
>
>
> An all F's value means the read failed. The device is likely off of the
> bus and the hw_addr may not have been repopulated after the reset.
>
> You might want to check the mailing list as I thought someone had
> submitted a patch recently for one of the drivers to repopulate hw_addr
> after a reset.
>
I guess you are saying this one:
http://patchwork.ozlabs.org/patch/689592/
Seems they have a similar issue with me.
--
Yours Sincerely,
Cao jin
^ permalink raw reply
* Re: [PATCH] net: alteon: acenic: use new api ethtool_{get|set}_link_ksettings
From: Jes Sorensen @ 2016-11-08 5:52 UTC (permalink / raw)
To: Philippe Reynes, davem; +Cc: netdev, linux-kernel
In-Reply-To: <1478359074-23941-1-git-send-email-tremyfr@gmail.com>
On 11/05/16 11:17, Philippe Reynes wrote:
> The ethtool api {get|set}_settings is deprecated.
> We move this driver to new api {get|set}_link_ksettings.
>
> Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
> ---
> drivers/net/ethernet/alteon/acenic.c | 65 ++++++++++++++++++---------------
> 1 files changed, 35 insertions(+), 30 deletions(-)
Nothing that sticks out to me
Acked-by: Jes Sorensen <Jes.Sorensen@gmail.com>
Jes
> diff --git a/drivers/net/ethernet/alteon/acenic.c b/drivers/net/ethernet/alteon/acenic.c
> index a5c1e29..16f0c70 100644
> --- a/drivers/net/ethernet/alteon/acenic.c
> +++ b/drivers/net/ethernet/alteon/acenic.c
> @@ -429,14 +429,16 @@
> "acenic.c: v0.92 08/05/2002 Jes Sorensen, linux-acenic@SunSITE.dk\n"
> " http://home.cern.ch/~jes/gige/acenic.html\n";
>
> -static int ace_get_settings(struct net_device *, struct ethtool_cmd *);
> -static int ace_set_settings(struct net_device *, struct ethtool_cmd *);
> +static int ace_get_link_ksettings(struct net_device *,
> + struct ethtool_link_ksettings *);
> +static int ace_set_link_ksettings(struct net_device *,
> + const struct ethtool_link_ksettings *);
> static void ace_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
>
> static const struct ethtool_ops ace_ethtool_ops = {
> - .get_settings = ace_get_settings,
> - .set_settings = ace_set_settings,
> .get_drvinfo = ace_get_drvinfo,
> + .get_link_ksettings = ace_get_link_ksettings,
> + .set_link_ksettings = ace_set_link_ksettings,
> };
>
> static void ace_watchdog(struct net_device *dev);
> @@ -2579,43 +2581,44 @@ static int ace_change_mtu(struct net_device *dev, int new_mtu)
> return 0;
> }
>
> -static int ace_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
> +static int ace_get_link_ksettings(struct net_device *dev,
> + struct ethtool_link_ksettings *cmd)
> {
> struct ace_private *ap = netdev_priv(dev);
> struct ace_regs __iomem *regs = ap->regs;
> u32 link;
> + u32 supported;
>
> - memset(ecmd, 0, sizeof(struct ethtool_cmd));
> - ecmd->supported =
> - (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
> - SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
> - SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full |
> - SUPPORTED_Autoneg | SUPPORTED_FIBRE);
> + memset(cmd, 0, sizeof(struct ethtool_link_ksettings));
>
> - ecmd->port = PORT_FIBRE;
> - ecmd->transceiver = XCVR_INTERNAL;
> + supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
> + SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
> + SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full |
> + SUPPORTED_Autoneg | SUPPORTED_FIBRE);
> +
> + cmd->base.port = PORT_FIBRE;
>
> link = readl(®s->GigLnkState);
> - if (link & LNK_1000MB)
> - ethtool_cmd_speed_set(ecmd, SPEED_1000);
> - else {
> + if (link & LNK_1000MB) {
> + cmd->base.speed = SPEED_1000;
> + } else {
> link = readl(®s->FastLnkState);
> if (link & LNK_100MB)
> - ethtool_cmd_speed_set(ecmd, SPEED_100);
> + cmd->base.speed = SPEED_100;
> else if (link & LNK_10MB)
> - ethtool_cmd_speed_set(ecmd, SPEED_10);
> + cmd->base.speed = SPEED_10;
> else
> - ethtool_cmd_speed_set(ecmd, 0);
> + cmd->base.speed = 0;
> }
> if (link & LNK_FULL_DUPLEX)
> - ecmd->duplex = DUPLEX_FULL;
> + cmd->base.duplex = DUPLEX_FULL;
> else
> - ecmd->duplex = DUPLEX_HALF;
> + cmd->base.duplex = DUPLEX_HALF;
>
> if (link & LNK_NEGOTIATE)
> - ecmd->autoneg = AUTONEG_ENABLE;
> + cmd->base.autoneg = AUTONEG_ENABLE;
> else
> - ecmd->autoneg = AUTONEG_DISABLE;
> + cmd->base.autoneg = AUTONEG_DISABLE;
>
> #if 0
> /*
> @@ -2626,13 +2629,15 @@ static int ace_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
> ecmd->txcoal = readl(®s->TuneTxCoalTicks);
> ecmd->rxcoal = readl(®s->TuneRxCoalTicks);
> #endif
> - ecmd->maxtxpkt = readl(®s->TuneMaxTxDesc);
> - ecmd->maxrxpkt = readl(®s->TuneMaxRxDesc);
> +
> + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
> + supported);
>
> return 0;
> }
>
> -static int ace_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
> +static int ace_set_link_ksettings(struct net_device *dev,
> + const struct ethtool_link_ksettings *cmd)
> {
> struct ace_private *ap = netdev_priv(dev);
> struct ace_regs __iomem *regs = ap->regs;
> @@ -2655,11 +2660,11 @@ static int ace_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
> LNK_RX_FLOW_CTL_Y | LNK_NEG_FCTL;
> if (!ACE_IS_TIGON_I(ap))
> link |= LNK_TX_FLOW_CTL_Y;
> - if (ecmd->autoneg == AUTONEG_ENABLE)
> + if (cmd->base.autoneg == AUTONEG_ENABLE)
> link |= LNK_NEGOTIATE;
> - if (ethtool_cmd_speed(ecmd) != speed) {
> + if (cmd->base.speed != speed) {
> link &= ~(LNK_1000MB | LNK_100MB | LNK_10MB);
> - switch (ethtool_cmd_speed(ecmd)) {
> + switch (cmd->base.speed) {
> case SPEED_1000:
> link |= LNK_1000MB;
> break;
> @@ -2672,7 +2677,7 @@ static int ace_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
> }
> }
>
> - if (ecmd->duplex == DUPLEX_FULL)
> + if (cmd->base.duplex == DUPLEX_FULL)
> link |= LNK_FULL_DUPLEX;
>
> if (link != ap->link) {
>
^ permalink raw reply
* net/sunrpc/clnt.c:2773 suspicious rcu_dereference_check() usage!
From: Ross Zwisler @ 2016-11-08 5:42 UTC (permalink / raw)
To: Trond Myklebust, Anna Schumaker, J. Bruce Fields, Jeff Layton,
David S. Miller, linux-nfs-u79uwXL29TY76Z2rM5mHXA,
netdev-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, Andy Adamson
I've got a virtual machine that has some NFS mounts, and with a newly compiled
kernel based on v4.9-rc3 I see the following warning/info message:
[ 42.750181] ===============================
[ 42.750192] [ INFO: suspicious RCU usage. ]
[ 42.750203] 4.9.0-rc3-00002-g7b6e7de #3 Not tainted
[ 42.750213] -------------------------------
[ 42.750225] net/sunrpc/clnt.c:2773 suspicious rcu_dereference_check() usage!
[ 42.750235]
[ 42.750235] other info that might help us debug this:
[ 42.750235]
[ 42.750246]
[ 42.750246] rcu_scheduler_active = 1, debug_locks = 0
[ 42.750257] 1 lock held by mount.nfs4/6440:
[ 42.750278] #0:
[ 42.750299] (
[ 42.750319] &(&nn->nfs_client_lock)->rlock
[ 42.750340] ){+.+...}
[ 42.750362] , at:
[ 42.750372] [<ffffffff813012b5>] nfs_get_client+0x105/0x5e0
[ 42.750383]
[ 42.750383] stack backtrace:
[ 42.750394] CPU: 0 PID: 6440 Comm: mount.nfs4 Not tainted 4.9.0-rc3-00002-g7b6e7de #3
[ 42.750406] Hardware name: Intel Corporation PURLEY/PURLEY, BIOS PLYDCRB1.MBH.0096.D23.1608240105 08/24/2016
[ 42.750429] ffffc9000092fa68 ffffffff8150730f ffff88014ec8da40 0000000000000001
[ 42.750452] ffffc9000092fa98 ffffffff810bc3f7 ffff880150b0b228 ffff88015068dbb0
[ 42.750475] ffffc9000092fb38 ffff88014fc99180 ffffc9000092fac0 ffffffff81b243e5
[ 42.750486] Call Trace:
[ 42.750498] [<ffffffff8150730f>] dump_stack+0x67/0x98
[ 42.750511] [<ffffffff810bc3f7>] lockdep_rcu_suspicious+0xe7/0x120
[ 42.750524] [<ffffffff81b243e5>] rpc_clnt_xprt_switch_has_addr+0x115/0x150
[ 42.750536] [<ffffffff813013f4>] nfs_get_client+0x244/0x5e0
[ 42.750549] [<ffffffff813012ac>] ? nfs_get_client+0xfc/0x5e0
[ 42.750561] [<ffffffff813568f8>] nfs4_set_client+0x98/0x130
[ 42.750574] [<ffffffff8135872e>] nfs4_create_server+0x13e/0x390
[ 42.750588] [<ffffffff8134cd0e>] nfs4_remote_mount+0x2e/0x60
[ 42.750600] [<ffffffff811f3a29>] mount_fs+0x39/0x170
[ 42.750614] [<ffffffff81214a0b>] vfs_kern_mount+0x6b/0x150
[ 42.750626] [<ffffffff8134cbec>] ? nfs_do_root_mount+0x3c/0xc0
[ 42.750639] [<ffffffff8134cc36>] nfs_do_root_mount+0x86/0xc0
[ 42.750652] [<ffffffff8134d014>] nfs4_try_mount+0x44/0xc0
[ 42.750664] [<ffffffff81302097>] ? get_nfs_version+0x27/0x90
[ 42.750677] [<ffffffff81310f8c>] nfs_fs_mount+0x4ac/0xd80
[ 42.750689] [<ffffffff810bb938>] ? lockdep_init_map+0x88/0x1f0
[ 42.750701] [<ffffffff81311ac0>] ? nfs_clone_super+0x130/0x130
[ 42.750713] [<ffffffff8130f300>] ? param_set_portnr+0x70/0x70
[ 42.750726] [<ffffffff811f3a29>] mount_fs+0x39/0x170
[ 42.750740] [<ffffffff81214a0b>] vfs_kern_mount+0x6b/0x150
[ 42.750752] [<ffffffff812176f1>] do_mount+0x1f1/0xd10
[ 42.750765] [<ffffffff81217441>] ? copy_mount_options+0xa1/0x140
[ 42.750777] [<ffffffff81218543>] SyS_mount+0x83/0xd0
[ 42.750790] [<ffffffff81002abc>] do_syscall_64+0x5c/0x130
[ 42.750802] [<ffffffff81c479a4>] entry_SYSCALL64_slow_path+0x25/0x25
This rcu_dereference_check() was introduced by the following commit:
commit 39e5d2df959dd4aea81fa33d765d2a5cc67a0512
Author: Andy Adamson <andros-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
Date: Fri Sep 9 09:22:25 2016 -0400
SUNRPC search xprt switch for sockaddr
Signed-off-by: Andy Adamson <andros-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
Signed-off-by: Anna Schumaker <Anna.Schumaker-ZwjVKphTwtPQT0dZR+AlfA@public.gmane.org>
Thanks,
- Ross
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^ permalink raw reply
* Re: Is there a maximum bytes in flight limitation in the tcp stack?
From: Yuchung Cheng @ 2016-11-08 4:50 UTC (permalink / raw)
To: De Schepper, Koen (Nokia - BE); +Cc: netdev@vger.kernel.org
In-Reply-To: <BF6B00CC65FD2D45A326E74492B2C19FB77853E9@FR711WXCHMBA05.zeu.alcatel-lucent.com>
On Thu, Nov 3, 2016 at 9:37 AM, De Schepper, Koen (Nokia - BE)
<koen.de_schepper@nokia-bell-labs.com> wrote:
>
> Hi,
>
> We experience some limit on the maximum packets in flight which seem not to be related with the receive or write buffers. Does somebody know if there is an issue with a maximum of around 1MByte (or sometimes 2Mbyte) of data in flight per TCP flow?
does not ring a bell. I've definitely see cubic reaching >2MB cwnd (inflight)
some packet trace will help.
btw, tcp_rmem is the maximum receive buffer including all header and
control overhead. the receive window announced is (very roughly) half
of your rcvbuf.
>
> It seems to be a strict and stable limit independent from the CC (tested with Cubic, Reno and DCTCP). On a link of 200Mbps and 200ms RTT our link is only 20% (sometimes 40%, see conditions below) utilized for a single TCP flow with no drop experienced at all (no bottleneck in the AQM or RTT emulation, as it supports more throughput if multiple flows are active).
>
> Some configuration changes we already tried on both client and server (kernel 3.18.9):
>
> net.ipv4.tcp_no_metrics_save = 1
> net.ipv4.tcp_rmem = 4096 87380 6291456
> net.ipv4.tcp_wmem = 4096 16384 4194304
>
> SERVER# ss -i
> tcp ESTAB 0 1049728 10.187.255.211:46642 10.187.16.194:ssh
> dctcp wscale:7,7 rto:408 rtt:204.333/0.741 ato:40 mss:1448 cwnd:1466 send 83.1Mbps unacked:728 rcv_rtt:212 rcv_space:29200
> CLIENT# ss -i
> tcp ESTAB 0 288 10.187.16.194:ssh 10.187.255.211:46642
> dctcp wscale:7,7 rto:404 rtt:203.389/0.213 ato:40 mss:1448 cwnd:78 send 4.4Mbps unacked:8 rcv_rtt:204 rcv_space:1074844
>
> When increasing the write and receive mem further (they were already way above 1 or 2 MB) it steps to double (40%; 2Mbytes in flight):
> net.ipv4.tcp_no_metrics_save = 1
> net.ipv4.tcp_rmem = 4096 8000000 16291456
> net.ipv4.tcp_wmem = 4096 8000000 16291456
>
> SERVER # ss -i
> tcp ESTAB 0 2068976 10.187.255.212:54637 10.187.16.112:ssh
> cubic wscale:8,8 rto:404 rtt:202.622/0.061 ato:40 mss:1448 cwnd:1849 ssthresh:1140 send 105.7Mbps unacked:1457 rcv_rtt:217.5 rcv_space:29200
> CLIENT# ss -i
> tcp ESTAB 0 648 10.187.16.112:ssh 10.187.255.212:54637
> cubic wscale:8,8 rto:404 rtt:201.956/0.038 ato:40 mss:1448 cwnd:132 send 7.6Mbps unacked:18 rcv_rtt:204 rcv_space:2093044
>
> Further increasing (x10) does not help anymore...
> net.ipv4.tcp_no_metrics_save = 1
> net.ipv4.tcp_rmem = 4096 80000000 162914560
> net.ipv4.tcp_wmem = 4096 80000000 162914560
>
> As all these parameters autotune, it is hard to find out which one is limiting... In the examples, above unacked does not want to go higher, while congestion window in the server is big enough... rcv_space could be limiting, but it tunes up if I change the server with the higher buffers (switching to 2MByte in flight).
>
> We also tried tcp_limit_output_bytes, setting it bigger (x10) and smaller(/10), without effect. We've put it in /etc/sysctl.conf and rebooted, to make sure that it is effective.
>
> Some more detailed tests that had an effect on the 1 or 2MByte:
> - It seems that with TSO off, if we configure a bigger wmem buffer, an ongoing flow suddenly is able to immediately double its bytes in flight limit. We configured further up to more than 10x the buffer, but no further increase helps, and the limits we saw are only 1MByte and 2Mbyte (no intermediate values depending on any parameter). When setting tcp_wmem smaller again, the 2MByte limit stays on the ongoing flow. We have to restart the flow to make the buffer reduction to 1MByte effective.
> - With TSO on, only the 2MByte limit is effective, independent from the wmem buffer. We have to restart the flow to make a tso change effective.
>
> Koen.
>
^ permalink raw reply
* Re: [PATCH net 1/1] driver: macvlan: Destroy new macvlan port if macvlan_common_newlink failed.
From: Gao Feng @ 2016-11-08 3:22 UTC (permalink / raw)
To: David Miller; +Cc: Patrick McHardy, Linux Kernel Network Developers
In-Reply-To: <20161107.203332.1849719163992933801.davem@davemloft.net>
Hi David,
On Tue, Nov 8, 2016 at 9:33 AM, David Miller <davem@davemloft.net> wrote:
> From: fgao@ikuai8.com
> Date: Fri, 4 Nov 2016 10:28:49 +0800
>
>> From: Gao Feng <fgao@ikuai8.com>
>>
>> When there is no existing macvlan port in lowdev, one new macvlan port
>> would be created. But it doesn't be destoried when something failed later.
>> It casues some memleak.
>>
>> Now add one flag to indicate if new macvlan port is created.
>>
>> Signed-off-by: Gao Feng <fgao@ikuai8.com>
>
> You need to be more patient, it sometimes take several days before
> your get patch reviewed or applied. Sometimes nobody reviews a change
> for some time because it is obscure or everyone is busy.
Sorry, it is my fault.
I thought this patch may be lost because there are too many emails every day.
So ping just as a reminder.
>
> All patches are tracked in patchwork, so it is never an issue of a
> change getting "lost". Therefore, it never makes sense to ping the
> list again and ask if a change is "ok".
>
> Personally, when people ping like that, it makes me want to review
> that patch _less_ not more. So please do not do it.
>
> Thank you.
>
Now I get it. I violated some rules as a fresh man in kernel community.
Sorry again.
Best Regards
Feng
^ permalink raw reply
* Re: Why are IPv6 host and anycast routes referencing lo device?
From: David Ahern @ 2016-11-08 3:00 UTC (permalink / raw)
To: YOSHIFUJI Hideaki, Hannes Frederic Sowa, netdev@vger.kernel.org
In-Reply-To: <14a4ccfb-11d9-f96b-a741-c8595b81ca45@miraclelinux.com>
On 11/7/16 7:26 PM, YOSHIFUJI Hideaki wrote:
> Once I tried I did not work.
> You could try again to see what happens.
I did and both worked fine in quick POC testing. I'll do more in-depth testing and send a patch. Thanks.
^ permalink raw reply
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