From: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
To: Vipul Pandya <vipul-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
roland-BHEL68pLQRGGvPXPguhicg@public.gmane.org,
davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org,
divy-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org,
dm-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org,
kumaras-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org
Subject: Re: [PATCH 05/10] RDMA/cxgb4: Add DB Overflow Avoidance.
Date: Sun, 23 Oct 2011 10:33:49 -0500 [thread overview]
Message-ID: <4EA433DD.6090805@opengridcomputing.com> (raw)
In-Reply-To: <1319044264-779-6-git-send-email-vipul-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
On 10/19/2011 12:10 PM, Vipul Pandya wrote:
> - get FULL/EMPTY/DROP events from LLD
>
> - on FULL event, disable normal user mode DB rings.
>
> - add modify_qp semantics to allow user processes to call into
> the kernel to ring doobells without overflowing.
>
> Add DB Full/Empty/Drop stats.
>
> Mark queues when created indicating the doorbell state.
>
> If we're in the middle of db overflow avoidance, then newly created
> queues should start out in this mode.
>
Hey Vipul,
I just realized, we need to bump the ABI for iw_cxgb4 with this series
so the user mode library can know if the driver supports the kernel mode
db ringing. So bump C4IW_UVERBS_ABI_VERSION to 3.
Steve.
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next prev parent reply other threads:[~2011-10-23 15:33 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-19 17:10 [PATCH 00/10] Doorbell drop recovery for T4 iWARP Vipul Pandya
2011-10-19 17:10 ` [PATCH 02/10] cxgb4: DB Drop Recovery for RDMA and LLD queues Vipul Pandya
2011-10-19 17:10 ` [PATCH 03/10] " Vipul Pandya
[not found] ` <1319044264-779-1-git-send-email-vipul-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
2011-10-19 17:10 ` [PATCH 01/10] cxgb4: Detect DB FULL events and notify RDMA ULD Vipul Pandya
2011-10-19 17:10 ` [PATCH 04/10] RDMA/cxgb4: Add debugfs rdma memory stats Vipul Pandya
2011-10-19 17:10 ` [PATCH 05/10] RDMA/cxgb4: Add DB Overflow Avoidance Vipul Pandya
[not found] ` <1319044264-779-6-git-send-email-vipul-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
2011-10-23 15:33 ` Steve Wise [this message]
2011-10-19 17:11 ` [PATCH 06/10] RDMA/cxgb4: disable interrupts in c4iw_ev_dispatch() Vipul Pandya
2011-10-19 17:11 ` [PATCH 07/10] RDMA/cxgb4: DB Drop Recovery for RDMA and LLD queues Vipul Pandya
[not found] ` <1319044264-779-8-git-send-email-vipul-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
2011-10-19 22:12 ` Roland Dreier
[not found] ` <CAL1RGDWCfJHD+PjXQ3STk4uc-fEyQ2GsQR5ALU6i4-f7w2bXUA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-10-20 14:32 ` Steve Wise
[not found] ` <4EA030F5.3000007-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2011-10-20 17:17 ` Roland Dreier
[not found] ` <CAL1RGDUDk_MAM+S+MaEcPQzug8TvE-mFAfNqX3FqRApLQu9H2g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-10-20 17:28 ` Steve Wise
[not found] ` <4EA05A27.9090605-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2011-10-20 20:57 ` David Miller
[not found] ` <20111020.165703.1713724038045504243.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2011-10-24 15:16 ` Vipul Pandya
[not found] ` <4EA5814F.6080801-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
2011-10-24 21:12 ` David Miller
[not found] ` <20111024.171209.1856294221956226756.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2011-10-25 11:34 ` Roland Dreier
2011-10-19 17:11 ` [PATCH 08/10] RDMA/cxgb4: Use vmalloc for debugfs qp dump. Allows dumping thousands of qps Vipul Pandya
2011-10-19 17:11 ` [PATCH 09/10] RDMA/cxgb4: remove kfifo usage Vipul Pandya
2011-10-19 17:11 ` [PATCH 10/10] RDMA/cxgb4: Add query_qp support in driver to query the qp state before flushing Vipul Pandya
-- strict thread matches above, loose matches on Subject: below --
2012-05-18 9:59 [PATCH 00/10] Doorbell drop recovery for Chelsio T4 iWARP Vipul Pandya
2012-05-18 9:59 ` [PATCH 05/10] RDMA/cxgb4: Add DB Overflow Avoidance Vipul Pandya
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