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From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Or Gerlitz <or.gerlitz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
	Roland Dreier <roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH 4/5] ib/core: add support for extended performance counters in sysfs
Date: Tue, 20 Dec 2011 12:50:15 -0700	[thread overview]
Message-ID: <20111220195014.GH25774@obsidianresearch.com> (raw)
In-Reply-To: <CAJZOPZ+rBKck50kmyhLZ3VNLNmoS_K6cA3Pj3L6XQjcBQo6DjA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On Tue, Dec 20, 2011 at 09:40:09PM +0200, Or Gerlitz wrote:
> Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org> wrote:
> > The netdev counters are all the same size and there is some other way
> > to discover what the size is. I'd like to see that for IB counters
> > too, but it is probably infeasible. So if we have counters that are
> > not the same size as netdev counters then some kind of size indicator
> > is required for sane userspace.
> 
> We're talking now only on the IB extended counters who are all 64 bits

netdev counters are 32 bit or 64 bit, depending on how the kernel was
compiled. I think indicating the size explicitly, or always being 64
bit (and extending all the lessor counters in future) is the way to go
for IB..

Jason
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  parent reply	other threads:[~2011-12-20 19:50 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-10  8:51 [PATCH for-3.2] IBoE fixes Or Gerlitz
     [not found] ` <alpine.LRH.2.00.1110101047420.10901-VYr5/9ddeaGSIdy2EShu12Xnswh1EIUO@public.gmane.org>
2011-10-10  8:53   ` [PATCH 1/5] ib/mlx4: enable 4K mtu for IBoE Or Gerlitz
2011-10-10  8:54   ` [PATCH 2/5] ib/mlx4: remove setting of vlan in IBoE WQEs control segment Or Gerlitz
2011-10-10  8:55   ` [PATCH 3/5] net/mlx4_core: remove module param controlling the vlan table size Or Gerlitz
     [not found]     ` <alpine.LRH.2.00.1110101055050.11243-VYr5/9ddeaGSIdy2EShu12Xnswh1EIUO@public.gmane.org>
2011-10-10 17:00       ` Roland Dreier
     [not found]         ` <CAG4TOxNaQicA6ExuNsw8V95mJPD+AQX5Wrfg+rCoBxdr2E+2ww-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-10-11  7:24           ` Or Gerlitz
     [not found]             ` <4E93EF38.5040707-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2011-10-11 17:28               ` Roland Dreier
     [not found]                 ` <CAL1RGDVk2EOmgWU_iZQWQqKJFPNYN4o_5_14Qbr_6wUzTJ1bOg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-10-11 19:18                   ` Or Gerlitz
     [not found]                     ` <CAJZOPZJnzUm2M1zm1564TUwKCN3r=y3g-4pwTL4bJPDo2V4s9w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-10-11 19:22                       ` Roland Dreier
2011-10-16  8:32                   ` Or Gerlitz
2011-10-16  8:26       ` [PATCH V1 3/5] net/mlx4_core: deprecate " Or Gerlitz
2011-10-10  8:56   ` [PATCH 4/5] ib/core: add support for extended performance counters in sysfs Or Gerlitz
     [not found]     ` <alpine.LRH.2.00.1110101055570.11243-VYr5/9ddeaGSIdy2EShu12Xnswh1EIUO@public.gmane.org>
2011-10-31 19:38       ` Roland Dreier
     [not found]         ` <CAL1RGDXdkiZNtAsnqDtgbCJGLXLFvk8s-YA5mR189kmg6FkabQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-11-01  6:40           ` Or Gerlitz
     [not found]             ` <CAJZOPZ+K3u+u5XutGfBhKh3DaBpNRKV_bw67CLK6jy3060OHqA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-11-01 16:22               ` Jason Gunthorpe
     [not found]                 ` <20111101162218.GA10710-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2011-11-01 17:23                   ` Or Gerlitz
     [not found]                     ` <CAJZOPZLXZL=vEDdXE3rE5Jzw840SrdY=73M7QgKSNzOysRE6MQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-11-01 17:36                       ` Jason Gunthorpe
     [not found]                         ` <20111101173625.GH26974-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2011-11-01 18:14                           ` Or Gerlitz
     [not found]                             ` <CAJZOPZJCY5ehTGw8htsxw0dJgMXJJAS-=LGJde9ddcMsmhqvMg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-11-01 18:37                               ` Jason Gunthorpe
     [not found]                                 ` <20111101183730.GI26974-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2011-11-01 21:42                                   ` Roland Dreier
2011-11-01 21:44                                     ` Or Gerlitz
2011-11-01 21:52                                     ` Jason Gunthorpe
     [not found]                                       ` <20111101215200.GN26974-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2011-11-01 22:03                                         ` Ira Weiny
     [not found]                                           ` <20111101150358.17d232ee.weiny2-i2BcT+NCU+M@public.gmane.org>
2011-11-01 22:11                                             ` Jason Gunthorpe
     [not found]                                               ` <20111101221135.GP26974-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2011-11-01 22:19                                                 ` Ira Weiny
2011-11-01 22:34                                                 ` Or Gerlitz
     [not found]                                                   ` <CAJZOPZJh2T5nCsdU9B0anUnoB=SpRD2_yBLT620zEi0Kr12MFg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-11-01 22:46                                                     ` Ira Weiny
     [not found]                                                       ` <20111101154627.f3c847dd.weiny2-i2BcT+NCU+M@public.gmane.org>
2011-11-02  7:38                                                         ` Or Gerlitz
2011-11-02 17:16                                     ` Or Gerlitz
     [not found]                                       ` <4EB17AF9.3000608-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2011-11-08  0:54                                         ` Roland Dreier
     [not found]                                           ` <CAG4TOxOYAnuB8oKkJgr9_6EpF+YR-h9WNak+gSWwpV0Nz-LeZg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-11-08  1:09                                             ` Jason Gunthorpe
     [not found]                                               ` <20111108010952.GC4934-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2011-11-08 16:06                                                 ` Ira Weiny
     [not found]                                                   ` <20111108080606.7c5dd62c.weiny2-i2BcT+NCU+M@public.gmane.org>
2011-12-20 11:49                                                     ` Or Gerlitz
2011-12-20 11:49                                                     ` Or Gerlitz
2011-12-20 12:03                                                 ` Or Gerlitz
     [not found]                                                   ` <4EF07993.2090900-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2011-12-20 17:46                                                     ` Jason Gunthorpe
     [not found]                                                       ` <20111220174639.GE25774-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2011-12-20 19:40                                                         ` Or Gerlitz
     [not found]                                                           ` <CAJZOPZ+rBKck50kmyhLZ3VNLNmoS_K6cA3Pj3L6XQjcBQo6DjA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-20 19:50                                                             ` Jason Gunthorpe [this message]
     [not found]                                                               ` <20111220195014.GH25774-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2011-12-20 19:56                                                                 ` Or Gerlitz
2012-01-04 19:29                                                                 ` Or Gerlitz
2011-12-22 17:09                                             ` Or Gerlitz
2011-11-01 21:46                                   ` Or Gerlitz
     [not found]                                     ` <CAJZOPZ+zmwTdHva5C7k0QhBmEzxSGTa1Ajszz3eSH=WpP3A4fg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-11-01 21:58                                       ` Jason Gunthorpe
     [not found]                                         ` <20111101215843.GO26974-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2011-11-02  8:27                                           ` Or Gerlitz
2011-11-01 21:49                               ` Roland Dreier
     [not found]                                 ` <CAG4TOxM4n3=51-3UqYF=iRS25OdRjTXoKDD6u1DukgRrwvTW1g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-11-01 22:32                                   ` Or Gerlitz
2011-11-01 22:49                                   ` Hefty, Sean
2011-10-10  8:57   ` [PATCH 5/5] ib/mlx4: added support for extended PMA counters under IBoE Or Gerlitz
2011-10-26  7:04   ` [PATCH for-3.2] IBoE fixes Or Gerlitz

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