From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: "ira.weiny" <ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Christoph Lameter <cl-vYTEC60ixJUAvxtiuMwx3w@public.gmane.org>,
dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 3/3] IB core: Display 64 bit counters from the extended set
Date: Fri, 11 Dec 2015 17:00:47 -0700 [thread overview]
Message-ID: <20151212000047.GA9961@obsidianresearch.com> (raw)
In-Reply-To: <20151211235630.GG7855-W4f6Xiosr+yv7QzWx2u06xL4W9x8LtSr@public.gmane.org>
> qib, mlx4 are fine. mlx5 should be as well I would think (I don't have that
> hardware.)
I have no specifics to add, but I keep running into systems, even
today, where the 64 bit counters don't work. The MAD might be there,
but several counters are wired to 0.
Not sure exactly which HW though.
Mellanox should really confirm this for their hardware matrix.
FWIW, I also hate the sysfs counters that reflect the PMA, these would
be much better are free running, wrapping, non-resetting counters
unrelated to the PMA. Something that doesn't zero after the SM samples
it. Sounds like qib, hif, rdmavt can trivially fix this, and should, IMHO.
Jason
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next prev parent reply other threads:[~2015-12-12 0:00 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-11 18:25 [PATCH 0/3] IB 64 bit counter support Christoph Lameter
2015-12-11 18:25 ` [PATCH 1/3] IB core: Allow specification of attr_id in PORT_PMA_ATTR macro Christoph Lameter
[not found] ` <20151211182543.135984387-vYTEC60ixJUAvxtiuMwx3w@public.gmane.org>
2015-12-11 23:31 ` ira.weiny
2015-12-11 18:25 ` [PATCH 2/3] IB core: Support 64 bit values in the port counters Christoph Lameter
[not found] ` <20151211182543.229518282-vYTEC60ixJUAvxtiuMwx3w@public.gmane.org>
2015-12-11 23:33 ` ira.weiny
2015-12-11 18:25 ` [PATCH 3/3] IB core: Display 64 bit counters from the extended set Christoph Lameter
[not found] ` <20151211182543.329283794-vYTEC60ixJUAvxtiuMwx3w@public.gmane.org>
2015-12-11 23:56 ` ira.weiny
[not found] ` <20151211235630.GG7855-W4f6Xiosr+yv7QzWx2u06xL4W9x8LtSr@public.gmane.org>
2015-12-12 0:00 ` Jason Gunthorpe [this message]
[not found] ` <20151212000047.GA9961-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-12-12 0:23 ` ira.weiny
[not found] ` <20151212002313.GH7855-W4f6Xiosr+yv7QzWx2u06xL4W9x8LtSr@public.gmane.org>
2015-12-12 0:47 ` Jason Gunthorpe
[not found] ` <20151212004715.GA10790-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-12-12 1:15 ` ira.weiny
2015-12-14 16:29 ` Hal Rosenstock
[not found] ` <566EEE69.5080906-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-12-15 19:51 ` Christoph Lameter
[not found] ` <alpine.DEB.2.20.1512151351050.3509-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-12-15 19:55 ` Jason Gunthorpe
[not found] ` <20151215195554.GA28167-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-12-15 20:01 ` Hal Rosenstock
[not found] ` <5670717F.9090701-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-12-15 21:20 ` Jason Gunthorpe
[not found] ` <20151215212035.GD28167-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-12-15 21:42 ` Hal Rosenstock
[not found] ` <56708961.1040505-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-12-15 21:46 ` Doug Ledford
[not found] ` <56708A19.8030403-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-12-16 15:35 ` Christoph Lameter
2015-12-16 16:44 ` Doug Ledford
2015-12-16 16:22 ` Christoph Lameter
[not found] ` <alpine.DEB.2.20.1512161000150.17457-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-12-16 19:34 ` Christoph Lameter
[not found] ` <alpine.DEB.2.20.1512161332200.10147-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-12-17 17:44 ` Hal Rosenstock
[not found] ` <5672F47F.9060806-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-12-17 18:54 ` Christoph Lameter
[not found] ` <alpine.DEB.2.20.1512171252200.2954-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-12-17 19:14 ` Hal Rosenstock
[not found] ` <5673097D.8050906-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-12-17 19:21 ` Christoph Lameter
[not found] ` <alpine.DEB.2.20.1512171321110.8087-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-12-17 19:47 ` Hal Rosenstock
2015-12-14 17:36 ` Devesh Sharma
2015-12-14 14:03 ` Matan Barak
[not found] ` <CAAKD3BAT36BGP+21y9oz1E4EuURFuwiAHi558ho8y+k3GEy4Ww-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-14 14:55 ` Christoph Lameter
[not found] ` <alpine.DEB.2.20.1512140853510.25000-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-12-14 15:20 ` Matan Barak
[not found] ` <CAAKD3BC+DTMpza8WoshBS5SwzzWz-OMiR-KEegKAcrFYpCfqrg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-14 16:06 ` Christoph Lameter
[not found] ` <alpine.DEB.2.20.1512141005010.25235-wcBtFHqTun5QOdAKl3ChDw@public.gmane.org>
2015-12-20 10:10 ` Matan Barak
2015-12-20 10:37 ` Hal Rosenstock
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