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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next prev 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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