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From: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
To: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 2.6.35 2/3] RDMA/cxgb4: Support variable sized work requests.
Date: Thu, 10 Jun 2010 14:17:54 -0500	[thread overview]
Message-ID: <4C113A62.2050806@opengridcomputing.com> (raw)
In-Reply-To: <adafx0uln16.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>

Roland Dreier wrote:
>  > T4 EQ entries are in multiples of 64B.  Currently the RDMA SQ and RQ
>  > use fixed sized entries composed of 4 EQ entries for the SQ and 2 EQ
>  > entries for the RQ.  For optimial latency with small IO, we need to
>  > change this so the HW only needs to DMA the EQ entries actually used by
>  > a given work request.
>
> This seems not to be a fix, just an optimization -- so at this point for
> 2.6.36 I think.  Or am I wrong?
>   

You are correct...I was hoping since iw_cxgb4 is new to 2.6.35, we could 
still get this in.

But if you disagree, then 2.6.36...


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  parent reply	other threads:[~2010-06-10 19:17 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-10 19:02 [PATCH 2.6.35 1/3] RDMA/cxgb4: Don't call abort_connection() for active connect failures Steve Wise
     [not found] ` <20100610190255.18331.20027.stgit-T4OLL4TyM9aNDNWfRnPdfg@public.gmane.org>
2010-06-10 19:03   ` [PATCH 2.6.35 2/3] RDMA/cxgb4: Support variable sized work requests Steve Wise
     [not found]     ` <20100610190300.18331.39028.stgit-T4OLL4TyM9aNDNWfRnPdfg@public.gmane.org>
2010-06-10 19:12       ` Roland Dreier
     [not found]         ` <adafx0uln16.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2010-06-10 19:17           ` Steve Wise [this message]
     [not found]             ` <4C113A62.2050806-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2010-06-10 19:28               ` Roland Dreier
2010-07-21 17:58       ` Roland Dreier
2010-06-10 19:03   ` [PATCH 2.6.35 3/3] RDMA/cxgb4: Avoid false GTS CIDX_INC overflows Steve Wise
     [not found]     ` <20100610190306.18331.87083.stgit-T4OLL4TyM9aNDNWfRnPdfg@public.gmane.org>
2010-07-06 21:25       ` Roland Dreier
2010-07-06 21:25   ` [PATCH 2.6.35 1/3] RDMA/cxgb4: Don't call abort_connection() for active connect failures Roland Dreier

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