From: Stephen Hemminger <stephen@networkplumber.org>
To: "Burakov, Anatoly" <anatoly.burakov@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v2 10/16] Added support for selecting VFIO interrupt type from EAL command-line
Date: Tue, 20 May 2014 04:23:23 -0700 [thread overview]
Message-ID: <20140520042323.4dbea108@samsung-9> (raw)
In-Reply-To: <C6ECDF3AB251BE4894318F4E451236976CC7437F@IRSMSX104.ger.corp.intel.com>
On Tue, 20 May 2014 08:33:43 +0000
"Burakov, Anatoly" <anatoly.burakov@intel.com> wrote:
> Hi Stephen,
>
> > I really wish the code did automatic fall back based on PCI config. It is possible to know the right mode, and do the right thing.
> > Rather than punting the problem out to command line which is totally unusable in hot plug and generic application.
>
> You mean we should use whatever is available rather than default to MSI-X if nothing was explicitly specified? That could be done, I guess.
>
> Best regards,
> Anatoly Burakov
> DPDK SW Engineer
>
>
I am not sure that MSI-X has any advantage with only one IRQ, so MSI would do.
Then have the code look at the PCI capability of device and fallback to INTX
if needed. It should also check if INTX works, see kernel for details, since
some PCI emulation like VMware is broken.
next prev parent reply other threads:[~2014-05-20 11:23 UTC|newest]
Thread overview: 161+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-01 11:05 [dpdk-dev] [PATCH 00/16] [RFC] [VFIO] Add VFIO support to DPDK Burakov, Anatoly
2014-05-01 16:12 ` Stephen Hemminger
2014-05-01 17:00 ` Chris Wright
2014-05-02 9:00 ` Burakov, Anatoly
2014-05-05 14:44 ` Vincent JARDIN
2014-05-06 8:41 ` Burakov, Anatoly
2014-05-02 8:58 ` Burakov, Anatoly
2014-09-08 8:20 ` Sujith Sankar (ssujith)
2014-09-08 8:21 ` Burakov, Anatoly
2014-09-08 8:27 ` Sujith Sankar (ssujith)
2014-09-08 8:30 ` Burakov, Anatoly
2014-09-08 8:33 ` Sujith Sankar (ssujith)
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 00/16] " Anatoly Burakov
2014-05-28 14:37 ` [dpdk-dev] [PATCH v3 00/20] " Anatoly Burakov
2014-05-28 14:37 ` [dpdk-dev] [PATCH v3 01/20] pci: move open() out of pci_map_resource, rename structs Anatoly Burakov
2014-05-28 14:37 ` [dpdk-dev] [PATCH v3 02/20] pci: move uio mapping code to a separate file Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 03/20] pci: fixing errors in a previous commit found by checkpatch Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 04/20] pci: distinguish between legitimate failures and non-fatal errors Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 05/20] pci: Rename RTE_PCI_DRV_NEED_IGB_UIO to RTE_PCI_DRV_NEED_MAPPING Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 06/20] igb_uio: make igb_uio compilation optional Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 07/20] igb_uio: Moved interrupt type out of igb_uio Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 08/20] vfio: add support for VFIO in Linuxapp targets Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 09/20] vfio: add VFIO header Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 10/20] interrupts: Add support for VFIO interrupts Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 11/20] eal: remove -Wno-return-type for non-existent eal_hpet.c Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 12/20] vfio: create mapping code for VFIO Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 13/20] vfio: add multiprocess support Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 14/20] pci: enable VFIO device binding Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 15/20] eal: added support for selecting VFIO interrupt type from EAL command-line Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 16/20] eal: make --no-huge use mmap instead of malloc Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 17/20] test app: adding unit tests for VFIO EAL command-line parameter Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 18/20] igb_uio: Removed PCI ID table from igb_uio Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 19/20] binding script: Renamed igb_uio_bind to dpdk_nic_bind Anatoly Burakov
2014-05-28 14:38 ` [dpdk-dev] [PATCH v3 20/20] setup script: adding support for VFIO to setup.sh Anatoly Burakov
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 00/20] Add VFIO support to DPDK Anatoly Burakov
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 01/20] pci: move open() out of pci_map_resource, rename structs Anatoly Burakov
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 02/20] pci: move uio mapping code to a separate file Anatoly Burakov
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 03/20] pci: fixing errors in a previous commit found by checkpatch Anatoly Burakov
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 04/20] pci: distinguish between legitimate failures and non-fatal errors Anatoly Burakov
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 05/20] pci: Rename RTE_PCI_DRV_NEED_IGB_UIO to RTE_PCI_DRV_NEED_MAPPING Anatoly Burakov
2014-06-04 9:03 ` Burakov, Anatoly
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 06/20] igb_uio: make igb_uio compilation optional Anatoly Burakov
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 07/20] igb_uio: Moved interrupt type out of igb_uio Anatoly Burakov
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 08/20] vfio: add support for VFIO in Linuxapp targets Anatoly Burakov
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 09/20] vfio: add VFIO header Anatoly Burakov
2014-06-03 10:17 ` [dpdk-dev] [PATCH v4 10/20] interrupts: Add support for VFIO interrupts Anatoly Burakov
2014-06-03 10:18 ` [dpdk-dev] [PATCH v4 11/20] eal: remove -Wno-return-type for non-existent eal_hpet.c Anatoly Burakov
2014-06-03 10:18 ` [dpdk-dev] [PATCH v4 12/20] vfio: create mapping code for VFIO Anatoly Burakov
2014-06-03 10:18 ` [dpdk-dev] [PATCH v4 13/20] vfio: add multiprocess support Anatoly Burakov
2014-06-03 10:18 ` [dpdk-dev] [PATCH v4 14/20] pci: enable VFIO device binding Anatoly Burakov
2014-06-03 10:18 ` [dpdk-dev] [PATCH v4 15/20] eal: added support for selecting VFIO interrupt type from EAL command-line Anatoly Burakov
2014-06-03 10:18 ` [dpdk-dev] [PATCH v4 16/20] eal: make --no-huge use mmap instead of malloc Anatoly Burakov
2014-06-03 10:18 ` [dpdk-dev] [PATCH v4 17/20] test app: adding unit tests for VFIO EAL command-line parameter Anatoly Burakov
2014-06-03 10:18 ` [dpdk-dev] [PATCH v4 18/20] igb_uio: Removed PCI ID table from igb_uio Anatoly Burakov
2014-06-03 10:18 ` [dpdk-dev] [PATCH v4 19/20] binding script: Renamed igb_uio_bind to dpdk_nic_bind Anatoly Burakov
2014-06-03 10:18 ` [dpdk-dev] [PATCH v4 20/20] setup script: adding support for VFIO to setup.sh Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 00/20] Add VFIO support to DPDK Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 01/20] pci: move open() out of pci_map_resource, rename structs Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 02/20] pci: move uio mapping code to a separate file Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 03/20] pci: fixing errors in a previous commit found by checkpatch Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 04/20] pci: distinguish between legitimate failures and non-fatal errors Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 05/20] pci: Rename RTE_PCI_DRV_NEED_IGB_UIO to RTE_PCI_DRV_NEED_MAPPING Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 06/20] igb_uio: make igb_uio compilation optional Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 07/20] igb_uio: Moved interrupt type out of igb_uio Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 08/20] vfio: add support for VFIO in Linuxapp targets Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 09/20] vfio: add VFIO header Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 10/20] interrupts: Add support for VFIO interrupts Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 11/20] eal: remove -Wno-return-type for non-existent eal_hpet.c Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 12/20] vfio: create mapping code for VFIO Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 13/20] vfio: add multiprocess support Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 14/20] pci: enable VFIO device binding Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 15/20] eal: added support for selecting VFIO interrupt type from EAL command-line Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 16/20] eal: make --no-huge use mmap instead of malloc Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 17/20] test app: adding unit tests for VFIO EAL command-line parameter Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 18/20] igb_uio: Removed PCI ID table from igb_uio Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 19/20] binding script: Renamed igb_uio_bind to dpdk_nic_bind Anatoly Burakov
2014-06-10 11:11 ` [dpdk-dev] [PATCH v5 20/20] setup script: adding support for VFIO to setup.sh Anatoly Burakov
2014-06-13 14:38 ` [dpdk-dev] [PATCH v5 00/20] Add VFIO support to DPDK Burakov, Anatoly
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 " Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 01/20] pci: move open() out of pci_map_resource, rename structs Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 02/20] pci: move uio mapping code to a separate file Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 03/20] pci: fixing errors in a previous commit found by checkpatch Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 04/20] pci: distinguish between legitimate failures and non-fatal errors Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 05/20] pci: Rename RTE_PCI_DRV_NEED_IGB_UIO to RTE_PCI_DRV_NEED_MAPPING Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 06/20] igb_uio: make igb_uio compilation optional Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 07/20] igb_uio: Moved interrupt type out of igb_uio Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 08/20] vfio: add support for VFIO in Linuxapp targets Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 09/20] vfio: add VFIO header Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 10/20] interrupts: Add support for VFIO interrupts Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 11/20] eal: remove -Wno-return-type for non-existent eal_hpet.c Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 12/20] vfio: create mapping code for VFIO Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 13/20] vfio: add multiprocess support Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 14/20] pci: enable VFIO device binding Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 15/20] eal: added support for selecting VFIO interrupt type from EAL command-line Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 16/20] eal: make --no-huge use mmap instead of malloc Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 17/20] test app: adding unit tests for VFIO EAL command-line parameter Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 18/20] igb_uio: Removed PCI ID table from igb_uio Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 19/20] binding script: Renamed igb_uio_bind to dpdk_nic_bind Anatoly Burakov
2014-06-13 14:52 ` [dpdk-dev] [PATCH v6 20/20] setup script: adding support for VFIO to setup.sh Anatoly Burakov
2014-06-16 9:08 ` [dpdk-dev] [PATCH v6 00/20] Add VFIO support to DPDK Thomas Monjalon
2014-06-16 9:28 ` Burakov, Anatoly
2014-06-16 13:07 ` Thomas Monjalon
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 01/16] Separate igb_uio mapping into a separate file Anatoly Burakov
2014-05-21 12:42 ` Thomas Monjalon
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 02/16] Distinguish between legitimate failures and non-fatal errors Anatoly Burakov
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 03/16] Rename RTE_PCI_DRV_NEED_IGB_UIO to RTE_PCI_DRV_NEED_MAPPING Anatoly Burakov
2014-05-21 12:55 ` Thomas Monjalon
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 04/16] Make igb_uio compilation optional Anatoly Burakov
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 05/16] Moved interrupt type out of igb_uio Anatoly Burakov
2014-05-21 13:38 ` Thomas Monjalon
2014-05-21 13:44 ` Burakov, Anatoly
2014-05-21 13:46 ` Thomas Monjalon
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 06/16] Add support for VFIO in Linuxapp targets Anatoly Burakov
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 07/16] Add support for VFIO interrupts, add VFIO header Anatoly Burakov
2014-05-21 16:07 ` Thomas Monjalon
2014-05-22 12:45 ` Burakov, Anatoly
2014-05-22 12:49 ` Thomas Monjalon
2014-05-22 12:54 ` Burakov, Anatoly
2014-05-27 14:29 ` Burakov, Anatoly
2014-05-27 14:38 ` Thomas Monjalon
2014-05-27 14:40 ` Burakov, Anatoly
2014-05-27 14:46 ` Thomas Monjalon
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 08/16] Add support for mapping devices through VFIO Anatoly Burakov
2014-05-22 11:53 ` Thomas Monjalon
2014-05-22 12:06 ` Burakov, Anatoly
2014-05-22 12:28 ` Thomas Monjalon
2014-05-22 12:37 ` Burakov, Anatoly
2014-05-22 12:46 ` Thomas Monjalon
2014-05-22 12:54 ` Burakov, Anatoly
2014-05-27 16:21 ` Burakov, Anatoly
2014-05-27 16:36 ` Thomas Monjalon
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 09/16] Enable VFIO device binding Anatoly Burakov
2014-05-22 12:03 ` Thomas Monjalon
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 10/16] Added support for selecting VFIO interrupt type from EAL command-line Anatoly Burakov
2014-05-20 7:40 ` Stephen Hemminger
2014-05-20 8:33 ` Burakov, Anatoly
2014-05-20 11:23 ` Stephen Hemminger [this message]
2014-05-20 11:26 ` Burakov, Anatoly
2014-05-20 21:39 ` Stephen Hemminger
2014-05-22 12:34 ` Thomas Monjalon
2014-05-28 10:35 ` Burakov, Anatoly
2014-05-28 11:24 ` Thomas Monjalon
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 11/16] Make --no-huge use mmap instead of malloc Anatoly Burakov
2014-05-22 13:04 ` Thomas Monjalon
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 12/16] Adding unit tests for VFIO EAL command-line parameter Anatoly Burakov
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 13/16] Removed PCI ID table from igb_uio Anatoly Burakov
2014-05-22 13:13 ` Thomas Monjalon
2014-05-22 13:24 ` Burakov, Anatoly
2014-05-22 13:28 ` Thomas Monjalon
2014-05-22 23:11 ` Stephen Hemminger
2014-05-23 7:48 ` Thomas Monjalon
2014-05-23 0:10 ` Antti Kantee
2014-05-28 13:45 ` Thomas Monjalon
2014-05-28 14:50 ` Antti Kantee
2014-05-28 16:24 ` Stephen Hemminger
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 14/16] Renamed igb_uio_bind to dpdk_nic_bind Anatoly Burakov
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 15/16] Added support for VFIO drivers in dpdk_nic_bind.py Anatoly Burakov
2014-05-22 13:23 ` Thomas Monjalon
2014-05-19 15:51 ` [dpdk-dev] [PATCH v2 16/16] Adding support for VFIO to setup.sh Anatoly Burakov
2014-05-22 13:25 ` Thomas Monjalon
2014-05-27 3:25 [dpdk-dev] [PATCH v2 10/16] Added support for selecting VFIO interrupt type from EAL command-line Xu, HuilongX
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