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From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Knut Omang <knut.omang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 5/9] ib_uverbs: Add padding to end align ib_uverbs_reg_mr_resp
Date: Thu, 1 Sep 2016 20:09:45 -0600	[thread overview]
Message-ID: <20160902020945.GB30057@obsidianresearch.com> (raw)
In-Reply-To: <1472774969-18997-6-git-send-email-knut.omang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>

On Fri, Sep 02, 2016 at 02:09:25AM +0200, Knut Omang wrote:
> The ib_uverbs_reg_mr_resp structure was not 64 bit end aligned
> as required by the protocol. This causes alignment issues
> if a device specific driver needs to transfer extra response
> arguments.

Can you explain in the commit message why this doesn't break anything?
How does compat work with existing libibverbs?

Jason
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  parent reply	other threads:[~2016-09-02  2:09 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-02  0:09 [PATCH 0/9] SIF related verbs patches Knut Omang
     [not found] ` <1472774969-18997-1-git-send-email-knut.omang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-02  0:09   ` [PATCH 1/9] ib_mad: incoming sminfo SMPs gets discarded if no process_mad function is registered Knut Omang
     [not found]     ` <1472774969-18997-2-git-send-email-knut.omang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-06 14:01       ` Hal Rosenstock
     [not found]         ` <57867d7f-cc9f-5ec2-6632-c552e6469e40-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2016-09-07 11:42           ` Knut Omang
     [not found]             ` <1473248532.3103.51.camel-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-08 11:33               ` Hal Rosenstock
     [not found]                 ` <098f69ae-6940-589a-e9ad-c65e34c958b7-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2016-09-08 17:22                   ` Knut Omang
     [not found]                     ` <1473355350.569.5.camel-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-08 19:02                       ` Hal Rosenstock
     [not found]                         ` <2eddf795-71bb-1866-42d9-8a3ba3d512d4-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2016-09-09  2:23                           ` Knut Omang
     [not found]                             ` <1473387784.569.17.camel-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-09 14:24                               ` Hal Rosenstock
     [not found]                                 ` <37195bbc-0db0-8054-2174-8dc0faf7c692-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2016-09-12  9:09                                   ` Knut Omang
     [not found]                                     ` <1473671364.17998.17.camel-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-12 14:03                                       ` Hal Rosenstock
2016-09-02  0:09   ` [PATCH 2/9] ib_umem: Add a new, more generic ib_umem_get_attrs Knut Omang
2016-09-02  0:09   ` [PATCH 3/9] ib_umem: With the new ib_umem_get_attrs, simplify ib_umem_get Knut Omang
2016-09-02  0:09   ` [PATCH 4/9] ib: Add udata argument to create_ah Knut Omang
     [not found]     ` <1472774969-18997-5-git-send-email-knut.omang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-02  0:38       ` kbuild test robot
2016-09-02  0:39       ` kbuild test robot
     [not found]         ` <201609020848.QliVPrIS%fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-09-02  8:01           ` Knut Omang
2016-09-02  0:09   ` [PATCH 5/9] ib_uverbs: Add padding to end align ib_uverbs_reg_mr_resp Knut Omang
     [not found]     ` <1472774969-18997-6-git-send-email-knut.omang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-02  2:09       ` Jason Gunthorpe [this message]
     [not found]         ` <20160902020945.GB30057-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-09-02  7:54           ` Knut Omang
2016-09-02  0:09   ` [PATCH 6/9] ib_uverbs: Avoid vendor specific masking of attributes in query_qp Knut Omang
     [not found]     ` <1472774969-18997-7-git-send-email-knut.omang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-02  2:13       ` Jason Gunthorpe
     [not found]         ` <20160902021300.GC30057-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-09-02  4:45           ` Knut Omang
     [not found]             ` <1472791552.9410.258.camel-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-02 17:10               ` Jason Gunthorpe
     [not found]                 ` <20160902171008.GE24997-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-09-02 17:35                   ` Knut Omang
     [not found]                     ` <1472837728.9410.340.camel-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-12 15:05                       ` Knut Omang
2016-09-02  0:09   ` [PATCH 7/9] ib_{uverbs/core}: add new ib_create_qp_ex with udata arg Knut Omang
2016-09-02  0:09   ` [PATCH 8/9] ib_uverbs: Support for kernel implementation of XRC Knut Omang
     [not found]     ` <1472774969-18997-9-git-send-email-knut.omang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-02  2:16       ` Jason Gunthorpe
     [not found]         ` <20160902021640.GD30057-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-09-02  7:55           ` Knut Omang
2016-09-02  0:09   ` [PATCH 9/9] ib_verbs: Add a new qp create flag to request features for Ethernet over IB Knut Omang
     [not found]     ` <1472774969-18997-10-git-send-email-knut.omang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-02  2:17       ` Jason Gunthorpe
     [not found]         ` <20160902021729.GE30057-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-09-02  5:04           ` Knut Omang
     [not found]             ` <1472792670.9410.276.camel-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-02 11:00               ` Knut Omang
     [not found]                 ` <1472814057.3975.47.camel-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-02 16:19                   ` Santosh Shilimkar
     [not found]                     ` <b38c5cf6-4e07-33eb-8704-284498481bb6-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-02 17:11                       ` Jason Gunthorpe
     [not found]                         ` <20160902171107.GF24997-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-09-02 17:14                           ` Santosh Shilimkar
2016-09-02 16:34                   ` Jason Gunthorpe
     [not found]                     ` <20160902163451.GC24997-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-09-07 17:33                       ` Knut Omang

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