From: Sagi Grimberg <sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
Cc: Roland Dreier <roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
David Dillow <dave-i1Mk8JYDVaaSihdK6806/g@public.gmane.org>,
Vu Pham <vuhuong-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Sebastian Riemer
<sebastian.riemer-EIkl63zCoXaH+58JC4qpiA@public.gmane.org>,
Jinpu Wang <jinpu.wang-EIkl63zCoXaH+58JC4qpiA@public.gmane.org>,
linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH v3 11/13] IB/srp: Make HCA completion vector configurable
Date: Tue, 16 Jul 2013 15:41:46 +0300 [thread overview]
Message-ID: <51E53F8A.2010700@mellanox.com> (raw)
In-Reply-To: <51E5275F.2070009-HInyCGIudOg@public.gmane.org>
On 7/16/2013 1:58 PM, Bart Van Assche wrote:
> On 16/07/2013 4:11, Sagi Grimberg wrote:
>> This sounds like a nice Idea, but there an inherent problem about
>> applications coming and going while the connections are static
>> (somewhat),
>> how can you control pinning an arbitrary application running (over SRP
>> devices of-course) at certain point of time.
>>
>> So will you agree at least to give target->comp_vector a default of
>> IB_CQ_VECTOR_LEAST_ATTACHED?
>> From my point of view, a user that don't have a slightest clue about
>> completion vectors and performance optimization, this is somewhat better
>> than doing nothing...
>
> Hello Sagi,
>
> That sounds like an interesting proposal to me. But did the patch that
> adds the IB_CQ_VECTOR_LEAST_ATTACHED feature ever get accepted in the
> upstream Linux kernel ? I have tried to find that symbol in Linux
> kernel v3.11-rc1 but couldn't find it. Maybe I have overlooked
> something ?
>
> Bart.
>
Oh you're right!
I'll ask Vu, from git blame on old OFED I see that He wrote the code...
Perhaps this should be added as well.
-Sagi
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next prev parent reply other threads:[~2013-07-16 12:41 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-03 12:41 [PATCH v3 0/13] IB SRP initiator patches for kernel 3.11 Bart Van Assche
2013-07-03 12:53 ` [PATCH v3 06/13] IB/srp: Keep rport as long as the IB transport layer Bart Van Assche
[not found] ` <51D41C03.4020607-HInyCGIudOg@public.gmane.org>
2013-07-03 12:43 ` [PATCH v3 01/13] IB/srp: Fix remove_one crash due to resource exhaustion Bart Van Assche
2013-07-03 12:44 ` [PATCH v3 02/13] IB/srp: Avoid that srp_reset_host() is skipped after a TL error Bart Van Assche
2013-07-03 12:45 ` [PATCH v3 03/13] IB/srp: Fail I/O fast if target offline Bart Van Assche
2013-07-03 12:50 ` [PATCH v3 04/13] IB/srp: Skip host settle delay Bart Van Assche
2013-07-03 12:51 ` [PATCH v3 05/13] IB/srp: Maintain a single connection per I_T nexus Bart Van Assche
2013-07-03 12:54 ` [PATCH v3 07/13] scsi_transport_srp: Add transport layer error handling Bart Van Assche
[not found] ` <51D41F13.6060203-HInyCGIudOg@public.gmane.org>
2013-07-03 15:14 ` David Dillow
2013-07-03 16:00 ` Bart Van Assche
[not found] ` <51D44A86.5050000-HInyCGIudOg@public.gmane.org>
2013-07-03 17:27 ` David Dillow
[not found] ` <1372872474.24238.43.camel-zHLflQxYYDO4Hhoo1DtQwJ9G+ZOsUmrO@public.gmane.org>
2013-07-03 18:24 ` Bart Van Assche
2013-07-03 18:57 ` David Dillow
[not found] ` <1372877861.24238.64.camel-zHLflQxYYDO4Hhoo1DtQwJ9G+ZOsUmrO@public.gmane.org>
2013-07-03 23:41 ` Vu Pham
2013-07-04 8:01 ` Bart Van Assche
[not found] ` <51D52BD7.1090506-HInyCGIudOg@public.gmane.org>
2013-07-04 8:16 ` Bart Van Assche
2013-07-08 20:37 ` David Dillow
2013-07-08 17:26 ` Vu Pham
[not found] ` <51DAF63D.9010906-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-07-08 18:42 ` Bart Van Assche
2013-07-03 12:55 ` [PATCH v3 08/13] IB/srp: Add srp_terminate_io() Bart Van Assche
[not found] ` <51D41F52.4000409-HInyCGIudOg@public.gmane.org>
2013-07-03 14:08 ` David Dillow
[not found] ` <1372860491.24238.0.camel-zHLflQxYYDO4Hhoo1DtQwJ9G+ZOsUmrO@public.gmane.org>
2013-07-03 14:45 ` Bart Van Assche
[not found] ` <51D43915.9000007-HInyCGIudOg@public.gmane.org>
2013-07-03 14:57 ` David Dillow
[not found] ` <1372863441.24238.26.camel-zHLflQxYYDO4Hhoo1DtQwJ9G+ZOsUmrO@public.gmane.org>
2013-07-03 15:13 ` David Dillow
2013-07-03 12:56 ` [PATCH v3 09/13] IB/srp: Use SRP transport layer error recovery Bart Van Assche
2013-07-03 12:57 ` [PATCH v3 10/13] IB/srp: Start timers if a transport layer error occurs Bart Van Assche
2013-07-03 12:58 ` [PATCH v3 11/13] IB/srp: Make HCA completion vector configurable Bart Van Assche
[not found] ` <51D41FFC.6070105-HInyCGIudOg@public.gmane.org>
2013-07-14 9:43 ` Sagi Grimberg
[not found] ` <51E272A4.5030707-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-07-15 11:06 ` Bart Van Assche
[not found] ` <51E3D79D.9070808-HInyCGIudOg@public.gmane.org>
2013-07-15 13:29 ` Sagi Grimberg
[not found] ` <51E3F931.9080903-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-07-15 18:23 ` Bart Van Assche
[not found] ` <51E43E22.2060502-HInyCGIudOg@public.gmane.org>
2013-07-16 10:11 ` Sagi Grimberg
[not found] ` <51E51C56.50906-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-07-16 10:58 ` Bart Van Assche
[not found] ` <51E5275F.2070009-HInyCGIudOg@public.gmane.org>
2013-07-16 12:41 ` Sagi Grimberg [this message]
2013-07-16 15:11 ` Bart Van Assche
[not found] ` <51E56296.2000403-HInyCGIudOg@public.gmane.org>
2013-07-17 9:27 ` Sagi Grimberg
2013-07-03 12:59 ` [PATCH v3 12/13] IB/srp: Make transport layer retry count configurable Bart Van Assche
[not found] ` <51D4204E.7040301-HInyCGIudOg@public.gmane.org>
2013-07-03 14:30 ` David Dillow
2013-07-03 13:00 ` [PATCH v3 13/13] IB/srp: Bump driver version and release date Bart Van Assche
2013-07-03 13:38 ` [PATCH v3 0/13] IB SRP initiator patches for kernel 3.11 Or Gerlitz
2013-07-03 14:38 ` Bart Van Assche
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