* ISER - tgtadm: Can't find the driver
@ 2013-12-05 21:42 Moussa Ba (moussaba)
2013-12-05 22:13 ` Or Gerlitz
0 siblings, 1 reply; 4+ messages in thread
From: Moussa Ba (moussaba) @ 2013-12-05 21:42 UTC (permalink / raw)
To: stgt@vger.kernel.org; +Cc: Shlomi Sasson, Or Gerlitz
I have been trying to reactivate a tgt array I was using a few months ago. I am currently using 3.12 but, tgtdadm
fails with a:
tgtadm: Can't find the driver
I ran the following commands to configure it:
taskset 0x00000100 tgtd --control-port 0 --iscsi portal=192.168.104.2:3260 --iser port=3260
echo "Creating iqn.target0"
tgtadm --lld iser --mode target --op new --tid=1 --targetname iqn.target0 -C 0
tgtadm --lld iser --mode logicalunit --op new --tid 1 --lun 1 -b /dev/rssda --bstype rdwr -C 0
tgtadm --lld iser --mode logicalunit --op update --tid 1 --lun 1 --params scsi_id="$RSSDA_ID" -C 0
tgtadm --op update --mode target --tid 1 --name=MaxQueueCmd --value=256
tgtadm --lld iser --mode target --op bind --tid 1 -I ALL
Below are the modules Loaded
mlx4_en 76854 0
mlx4_ib 129860 16
ib_sa 23653 4 rdma_cm,ib_ipoib,ib_cm,mlx4_ib
ib_mad 40129 4 ib_cm,ib_umad,mlx4_ib,ib_sa
ib_core 72427 11 ib_iser,ib_isert,rdma_cm,iw_cm,ib_ipoib,ib_cm,ib_uverbs,ib_umad,mlx4_ib,ib_sa,ib_mad
mlx4_core 202689 2 mlx4_en,mlx4_ib
rdma_cm 39115 2 ib_iser,ib_isert
iw_cm 9936 1 rdma_cm
ib_addr 6528 1 rdma_cm
ib_cm 37980 2 rdma_cm,ib_ipoib
ib_uverbs 36365 48
rdma_cm 39115 2 ib_iser,ib_isert
ib_mad 40129 4 ib_cm,ib_umad,mlx4_ib,ib_sa
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: ISER - tgtadm: Can't find the driver
2013-12-05 21:42 ISER - tgtadm: Can't find the driver Moussa Ba (moussaba)
@ 2013-12-05 22:13 ` Or Gerlitz
2013-12-05 22:43 ` Moussa Ba (moussaba)
0 siblings, 1 reply; 4+ messages in thread
From: Or Gerlitz @ 2013-12-05 22:13 UTC (permalink / raw)
To: Moussa Ba (moussaba); +Cc: stgt@vger.kernel.org, Shlomi Sasson, Or Gerlitz
On Thu, Dec 5, 2013 at 11:42 PM, Moussa Ba (moussaba)
<moussaba@micron.com> wrote:
> I have been trying to reactivate a tgt array I was using a few months ago. I am currently using 3.12 but, tgtdadm
> fails with a:
>
> tgtadm: Can't find the driver
>
> I ran the following commands to configure it:
>
>
>
> taskset 0x00000100 tgtd --control-port 0 --iscsi portal=192.168.104.2:3260 --iser port=3260
>
> echo "Creating iqn.target0"
> tgtadm --lld iser --mode target --op new --tid=1 --targetname iqn.target0 -C 0
> tgtadm --lld iser --mode logicalunit --op new --tid 1 --lun 1 -b /dev/rssda --bstype rdwr -C 0
> tgtadm --lld iser --mode logicalunit --op update --tid 1 --lun 1 --params scsi_id="$RSSDA_ID" -C 0
> tgtadm --op update --mode target --tid 1 --name=MaxQueueCmd --value=256
> tgtadm --lld iser --mode target --op bind --tid 1 -I ALL
>
>
>
> Below are the modules Loaded
>
> mlx4_en 76854 0
> mlx4_ib 129860 16
> ib_sa 23653 4 rdma_cm,ib_ipoib,ib_cm,mlx4_ib
> ib_mad 40129 4 ib_cm,ib_umad,mlx4_ib,ib_sa
> ib_core 72427 11 ib_iser,ib_isert,rdma_cm,iw_cm,ib_ipoib,ib_cm,ib_uverbs,ib_umad,mlx4_ib,ib_sa,ib_mad
> mlx4_core 202689 2 mlx4_en,mlx4_ib
> rdma_cm 39115 2 ib_iser,ib_isert
> iw_cm 9936 1 rdma_cm
> ib_addr 6528 1 rdma_cm
> ib_cm 37980 2 rdma_cm,ib_ipoib
> ib_uverbs 36365 48
> rdma_cm 39115 2 ib_iser,ib_isert
> ib_mad 40129 4 ib_cm,ib_umad,mlx4_ib,ib_sa
For some reason the ib_mad and rdma_cm modules are listed twice...
anyway, you need rdma_ucm which is the ib_uverbs equivalent --
provides access to the kernel rdma_cm. I would recommend to run rping
which is provided by librdmacm-utils to very there's proper user space
access to the kernel IB stack .
Or.
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: ISER - tgtadm: Can't find the driver
2013-12-05 22:13 ` Or Gerlitz
@ 2013-12-05 22:43 ` Moussa Ba (moussaba)
2013-12-06 8:02 ` Or Gerlitz
0 siblings, 1 reply; 4+ messages in thread
From: Moussa Ba (moussaba) @ 2013-12-05 22:43 UTC (permalink / raw)
To: Or Gerlitz; +Cc: stgt@vger.kernel.org, Shlomi Sasson, Or Gerlitz
Thank you. Loading rdma_ucm resolved the issue. Do you think this information should be included the README.iser? It is already mentioned that Kernel modules should be loaded but which ones is not specified. Thank you.
Moussa
> -----Original Message-----
> From: Or Gerlitz [mailto:or.gerlitz@gmail.com]
> Sent: Thursday, December 05, 2013 2:13 PM
> To: Moussa Ba (moussaba)
> Cc: stgt@vger.kernel.org; Shlomi Sasson; Or Gerlitz
> Subject: Re: ISER - tgtadm: Can't find the driver
>
> On Thu, Dec 5, 2013 at 11:42 PM, Moussa Ba (moussaba)
> <moussaba@micron.com> wrote:
> > I have been trying to reactivate a tgt array I was using a few months
> ago. I am currently using 3.12 but, tgtdadm
> > fails with a:
> >
> > tgtadm: Can't find the driver
> >
> > I ran the following commands to configure it:
> >
> >
> >
> > taskset 0x00000100 tgtd --control-port 0 --iscsi
> portal=192.168.104.2:3260 --iser port=3260
> >
> > echo "Creating iqn.target0"
> > tgtadm --lld iser --mode target --op new --tid=1 --targetname
> iqn.target0 -C 0
> > tgtadm --lld iser --mode logicalunit --op new --tid 1 --lun 1 -b
> /dev/rssda --bstype rdwr -C 0
> > tgtadm --lld iser --mode logicalunit --op update --tid 1 --lun 1 --
> params scsi_id="$RSSDA_ID" -C 0
> > tgtadm --op update --mode target --tid 1 --name=MaxQueueCmd --
> value=256
> > tgtadm --lld iser --mode target --op bind --tid 1 -I ALL
> >
> >
> >
> > Below are the modules Loaded
> >
> > mlx4_en 76854 0
> > mlx4_ib 129860 16
> > ib_sa 23653 4 rdma_cm,ib_ipoib,ib_cm,mlx4_ib
> > ib_mad 40129 4 ib_cm,ib_umad,mlx4_ib,ib_sa
> > ib_core 72427 11
> ib_iser,ib_isert,rdma_cm,iw_cm,ib_ipoib,ib_cm,ib_uverbs,ib_umad,mlx4_ib
> ,ib_sa,ib_mad
> > mlx4_core 202689 2 mlx4_en,mlx4_ib
> > rdma_cm 39115 2 ib_iser,ib_isert
> > iw_cm 9936 1 rdma_cm
> > ib_addr 6528 1 rdma_cm
> > ib_cm 37980 2 rdma_cm,ib_ipoib
> > ib_uverbs 36365 48
> > rdma_cm 39115 2 ib_iser,ib_isert
> > ib_mad 40129 4 ib_cm,ib_umad,mlx4_ib,ib_sa
>
> For some reason the ib_mad and rdma_cm modules are listed twice...
> anyway, you need rdma_ucm which is the ib_uverbs equivalent --
> provides access to the kernel rdma_cm. I would recommend to run rping
> which is provided by librdmacm-utils to very there's proper user space
> access to the kernel IB stack .
>
> Or.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: ISER - tgtadm: Can't find the driver
2013-12-05 22:43 ` Moussa Ba (moussaba)
@ 2013-12-06 8:02 ` Or Gerlitz
0 siblings, 0 replies; 4+ messages in thread
From: Or Gerlitz @ 2013-12-06 8:02 UTC (permalink / raw)
To: Moussa Ba (moussaba), Or Gerlitz; +Cc: stgt@vger.kernel.org, Shlomi Sasson
On 06/12/2013 00:43, Moussa Ba (moussaba) wrote:
> Thank you. Loading rdma_ucm resolved the issue. Do you think this information should be included the README.iser? It is already mentioned that Kernel modules should be loaded but which ones is not specified. Thank you.
the readme does say:
"When using iser, you need to make sure the kernel IB/RDMA stack
is up and running.
It's recommended to use the rping tool provided by librdmacm-utils
for quick RDMA connectivity testing between the initiator and the
target nodes."
so you want a bit more...
^ permalink raw reply [flat|nested] 4+ messages in thread
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2013-12-05 21:42 ISER - tgtadm: Can't find the driver Moussa Ba (moussaba)
2013-12-05 22:13 ` Or Gerlitz
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2013-12-06 8:02 ` Or Gerlitz
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