From: Eli Cohen <eli-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
To: Todd Rimmer <todd.rimmer-h88ZbnxC6KDQT0dZR+AlfA@public.gmane.org>
Cc: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>,
Jason Gunthorpe
<jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>,
Jeff Squyres <jsquyres-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: RDMAoE verbs questions
Date: Tue, 1 Dec 2009 18:46:37 +0200 [thread overview]
Message-ID: <20091201164637.GA17672@mtls03> (raw)
In-Reply-To: <5AEC2602AE03EB46BFC16C6B9B200DA81691763FEA-e4KNYiSEog6Xx9kJd3VG2h2eb7JE58TQ@public.gmane.org>
On Mon, Nov 30, 2009 at 02:01:45PM -0600, Todd Rimmer wrote:
>
> If a given architecture rounds sizeof(transport) up to 16 bits or 32 bits, then the replacement field should be uint16_t or uint32_t respectively, otherwise existing binary applications which fetch transport will fetch additional undefined bytes which follow it in the new structure.
>
> The big question is whether all presently supported architectures use the same size for enum?
>
> I did a quicky test program and on SLES10 x86_64 sizeof(an enum) is 32 bits. Hence uint8_t would break binary compatibility on that platform.
>
You probably refer to binary compatibility between defferent versions
of the RDMAoE libibverbs (e.g. the one with enum and the one with
uint8_t). I think this is not a big issue and recompiling should solve
that.
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next prev parent reply other threads:[~2009-12-01 16:46 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-24 23:23 RDMAoE verbs questions Jeff Squyres
[not found] ` <209ECE49-3AB9-4E62-B825-54E474321FA6-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2009-11-25 0:11 ` Jason Gunthorpe
[not found] ` <20091125001136.GP6188-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2009-11-25 2:12 ` Jeff Squyres
[not found] ` <DD0B6BCA-5892-4CA9-8F5D-87C6CC1189DC-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2009-11-25 4:52 ` Jason Gunthorpe
[not found] ` <20091125045244.GJ1966-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2009-11-25 9:53 ` Pavel Shamis (Pasha)
[not found] ` <4B0CFEAB.70304-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2009-11-25 17:44 ` Jason Gunthorpe
2009-11-25 12:01 ` Jeff Squyres
2009-11-25 14:04 ` Tziporet Koren
[not found] ` <4B0D3982.2040408-VPRAkNaXOzVS1MOuV/RT9w@public.gmane.org>
2009-11-25 14:30 ` Jeff Squyres
[not found] ` <7127F20E-2307-492D-B929-A6ACA5A74D14-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2009-11-25 14:41 ` Eli Cohen
2009-11-25 17:39 ` Jason Gunthorpe
[not found] ` <20091125173917.GK1966-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2009-12-01 20:58 ` Christoph Lameter
2009-11-30 13:34 ` Eli Cohen
2009-11-30 14:03 ` Jeff Squyres
[not found] ` <5A90523D-56AE-4675-AA39-B6876FB32999-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2009-12-01 14:28 ` Eli Cohen
2009-12-01 21:00 ` Christoph Lameter
2009-11-30 17:21 ` Jason Gunthorpe
2009-11-30 18:50 ` Roland Dreier
[not found] ` <adaiqcrx2xx.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2009-11-30 19:03 ` Jason Gunthorpe
[not found] ` <20091130190345.GV6188-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2009-12-05 4:03 ` Roland Dreier
[not found] ` <ada1vjaukx8.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2009-12-05 4:16 ` Jason Gunthorpe
2009-12-07 17:25 ` Eli Cohen
2009-12-09 19:06 ` Roland Dreier
[not found] ` <adak4wwrmpq.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2009-12-09 21:48 ` Jason Gunthorpe
[not found] ` <20091209214843.GM6188-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2009-12-09 22:31 ` Eli Cohen
2009-11-30 20:01 ` Todd Rimmer
[not found] ` <5AEC2602AE03EB46BFC16C6B9B200DA81691763FEA-e4KNYiSEog6Xx9kJd3VG2h2eb7JE58TQ@public.gmane.org>
2009-12-01 16:46 ` Eli Cohen [this message]
2009-12-01 14:42 ` Eli Cohen
2009-11-25 7:25 ` Or Gerlitz
[not found] ` <4B0CDBEC.1030203-smomgflXvOZWk0Htik3J/w@public.gmane.org>
2009-11-25 11:52 ` Jeff Squyres
[not found] ` <10904370-1D66-4013-BB3F-0F4B5EE581EE-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2009-11-25 14:59 ` Or Gerlitz
[not found] ` <4B0D4660.5060701-smomgflXvOZWk0Htik3J/w@public.gmane.org>
2009-11-25 20:13 ` Pavel Shamis (Pasha)
[not found] ` <4B0D8FD2.9000702-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2009-11-26 7:26 ` Or Gerlitz
[not found] ` <4B0E2DA7.7060809-smomgflXvOZWk0Htik3J/w@public.gmane.org>
2009-11-26 9:00 ` Pavel Shamis (Pasha)
[not found] ` <4B0E43BA.6070700-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2009-11-26 11:16 ` Or Gerlitz
2009-11-30 13:54 ` Jeff Squyres
2009-12-02 12:12 ` Eli Cohen
[not found] <F57121538EA0C94F86018DDD40ADA1D101A4E9A6@mtiexch01.mti.com>
[not found] ` <2ED289D4E09FBD4D92D911E869B97FDD01CBE494@mtlexch01.mtl.com>
[not found] ` <2ED289D4E09FBD4D92D911E869B97FDD01CBE494-ia22CT07NJfiMCgWhms8HQC/G2K4zDHf@public.gmane.org>
2009-12-01 16:22 ` Liran Liss
[not found] ` <2ED289D4E09FBD4D92D911E869B97FDD01D0D6F9-ia22CT07NJfiMCgWhms8HQC/G2K4zDHf@public.gmane.org>
2009-12-01 16:27 ` Sean Hefty
[not found] ` <44B4931AF8354AF3BABCCA052150D2BA-Zpru7NauK7drdx17CPfAsdBPR1lH4CV8@public.gmane.org>
2009-12-01 17:00 ` Liran Liss
[not found] ` <2ED289D4E09FBD4D92D911E869B97FDD01D0D792-ia22CT07NJfiMCgWhms8HQC/G2K4zDHf@public.gmane.org>
2009-12-02 8:08 ` Or Gerlitz
[not found] ` <000001ca732d$1f99b4d0$5ecd1e70$@com>
2009-12-02 10:49 ` Liran Liss
2009-12-02 10:59 ` Or Gerlitz
2009-12-01 17:46 ` Jason Gunthorpe
[not found] ` <20091201174604.GO1966-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2009-12-02 10:38 ` Liran Liss
[not found] ` <2ED289D4E09FBD4D92D911E869B97FDD01D647E2-ia22CT07NJfiMCgWhms8HQC/G2K4zDHf@public.gmane.org>
2009-12-02 17:33 ` Jason Gunthorpe
[not found] ` <20091202173314.GP1966-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2009-12-03 18:26 ` Liran Liss
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