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
next prev parent 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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