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From: Thomas Monjalon <thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
To: Anatoly Burakov
	<anatoly.burakov-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: dev-VfR2kkLFssw@public.gmane.org
Subject: Re: [PATCH v8] eal: map PCI memory resources after hugepages
Date: Tue, 25 Nov 2014 18:17:46 +0100	[thread overview]
Message-ID: <2634610.dyaITUHquj@xps13> (raw)
In-Reply-To: <20141113134655.GA8224@bricha3-MOBL3>

> > Multi-process DPDK application must mmap hugepages and PCI resources
> > into the same virtual address space. By default the virtual addresses
> > are chosen by the primary process automatically when calling the mmap.
> > But sometimes the chosen virtual addresses aren't usable in secondary
> > process - for example, secondary process is linked with more libraries
> > than primary process, and the library occupies the same address space
> > that the primary process has requested for PCI mappings.
> > 
> > This patch makes EAL try and map PCI BARs right after the hugepages
> > (instead of location chosen by mmap) in virtual memory, so that PCI BARs
> > have less chance of ending up in random places in virtual memory.
> > 
> > Signed-off-by: Liang Xu <liang.xu-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
> > Signed-off-by: Anatoly Burakov <anatoly.burakov-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> 
> Acked-by: Bruce Richardson <bruce.richardson-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Applied

Thanks
-- 
Thomas

  reply	other threads:[~2014-11-25 17:17 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-05 13:25 [PATCH] eal: map uio resources after hugepages when the base_virtaddr is configured lxu
2014-11-05 15:49 ` 答复: " XU Liang
     [not found]   ` <01d6ff37-3473-43af-aff3-1183d4c4768a-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
2014-11-05 15:59     ` Burakov, Anatoly
2014-11-05 16:10   ` 答复:答复: " XU Liang
     [not found]     ` <7600981e-fc3a-454b-a269-51dd3b9d535b-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
2014-11-05 16:19       ` Burakov, Anatoly
2014-11-26  1:46     ` Qiu, Michael
     [not found]       ` <533710CFB86FA344BFBF2D6802E60286C9A738-0J0gbvR4kThpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-11-26  9:58         ` Burakov, Anatoly
     [not found] ` <1415193919-17361-1-git-send-email-liang.xu-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
2014-11-05 15:10   ` Burakov, Anatoly
2014-11-06 14:11   ` [PATCH v2] " lxu
     [not found]     ` <1415283104-29970-1-git-send-email-liang.xu-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
2014-11-06 14:27       ` Burakov, Anatoly
2014-11-06 14:48     ` 答复:[PATCH " 徐亮
2014-11-06 14:47   ` [PATCH v3] " lxu
     [not found]     ` <1415285223-7662-1-git-send-email-liang.xu-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
2014-11-06 14:58       ` Burakov, Anatoly
2014-11-06 15:06       ` De Lara Guarch, Pablo
2014-11-06 15:07   ` [PATCH v4] " lxu
     [not found]     ` <1415286460-14337-1-git-send-email-liang.xu-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
2014-11-06 15:12       ` Thomas Monjalon
2014-11-06 15:11   ` lxu
2014-11-06 15:32   ` [PATCH v5] " lxu
     [not found]     ` <1415287928-14513-1-git-send-email-liang.xu-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
2014-11-06 15:41       ` Burakov, Anatoly
     [not found]         ` <C6ECDF3AB251BE4894318F4E4512369780C07670-kPTMFJFq+rHjxeytcECX8bfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-11-06 15:58           ` Thomas Monjalon
2014-11-06 16:10             ` Burakov, Anatoly
     [not found]               ` <C6ECDF3AB251BE4894318F4E4512369780C0769D-kPTMFJFq+rHjxeytcECX8bfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-11-06 17:30                 ` Bruce Richardson
2014-11-07  8:01   ` [PATCH v6] " lxu
     [not found]     ` <1415347284-15468-1-git-send-email-liang.xu-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
2014-11-07  9:42       ` Bruce Richardson
2014-11-07  9:47       ` Burakov, Anatoly
2014-11-10 11:34       ` [PATCH v7] eal: map PCI memory resources after hugepages Anatoly Burakov
     [not found]         ` <1415619272-8281-1-git-send-email-anatoly.burakov-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2014-11-10 13:33           ` Burakov, Anatoly
2014-11-11 10:09           ` [PATCH v8] " Anatoly Burakov
     [not found]             ` <1415700565-19157-1-git-send-email-anatoly.burakov-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2014-11-13 11:34               ` Burakov, Anatoly
     [not found]                 ` <C6ECDF3AB251BE4894318F4E4512369780C08733-kPTMFJFq+rHjxeytcECX8bfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-11-13 12:58                   ` Bruce Richardson
2014-11-13 13:44                     ` Burakov, Anatoly
2014-11-13 13:46               ` Bruce Richardson
2014-11-25 17:17                 ` Thomas Monjalon [this message]
2014-11-11  3:53         ` [PATCH v7] " XU Liang
2014-11-07  9:57     ` [PATCH v6] eal: map uio resources after hugepages when the base_virtaddr is configured XU Liang
     [not found]       ` <2c2ad9a4-1c04-4641-9667-249617ae2c56-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
2014-11-07 10:00         ` Burakov, Anatoly
2014-11-07 14:37       ` XU Liang
2014-11-07 14:57   ` [PATCH v7] eal: map uio resources after hugepages lxu
     [not found]     ` <1415372269-8723-1-git-send-email-liang.xu-uqgZSDCUmcY3TOWNJCPdyQ@public.gmane.org>
2014-11-07 15:14       ` Burakov, Anatoly
2014-11-07 15:15       ` Thomas Monjalon
2014-11-07 15:19     ` XU Liang

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