mbox series

[iwl-next,v2,0/4] change MSI-X vectors per VF

Message ID 20230918062406.90359-1-michal.swiatkowski@linux.intel.com (mailing list archive)
Headers show
Series change MSI-X vectors per VF | expand

Message

Michal Swiatkowski Sept. 18, 2023, 6:24 a.m. UTC 
Hi,

This patchset is implementing sysfs API introduced here [1].

It will allow user to assign different amount of MSI-X vectors to VF.
For example when there are VMs with different number of virtual cores.

Example:
1. Turn off autoprobe
echo 0 > /sys/bus/pci/devices/0000\:18\:00.0/sriov_drivers_autoprobe
2. Create VFs
echo 4 > /sys/bus/pci/devices/0000\:18\:00.0/sriov_numvfs
3. Configure MSI-X
echo 20 > /sys/class/pci_bus/0000\:18/device/0000\:18\:01.0/sriov_vf_msix_count

v1 --> v2: [2] (Sorry for long time between versions)
 * rebase
 * reword commit message in ice: implement num_msix field per VF

[1] https://lore.kernel.org/netdev/20210314124256.70253-1-leon@kernel.org/
[2] https://lore.kernel.org/netdev/20230615123830.155927-1-michal.swiatkowski@linux.intel.com/

Michal Swiatkowski (4):
  ice: implement num_msix field per VF
  ice: add bitmap to track VF MSI-X usage
  ice: set MSI-X vector count on VF
  ice: manage VFs MSI-X using resource tracking

 drivers/net/ethernet/intel/ice/ice.h          |   2 +
 drivers/net/ethernet/intel/ice/ice_lib.c      |   2 +-
 drivers/net/ethernet/intel/ice/ice_main.c     |   2 +
 drivers/net/ethernet/intel/ice/ice_sriov.c    | 257 ++++++++++++++++--
 drivers/net/ethernet/intel/ice/ice_sriov.h    |  13 +
 drivers/net/ethernet/intel/ice/ice_vf_lib.h   |   4 +-
 drivers/net/ethernet/intel/ice/ice_virtchnl.c |   2 +-
 7 files changed, 258 insertions(+), 24 deletions(-)

Comments

Romanowski, Rafal Oct. 19, 2023, 10:18 a.m. UTC | #1 
> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of
> Michal Swiatkowski
> Sent: Monday, September 18, 2023 8:24 AM
> To: intel-wired-lan@lists.osuosl.org
> Cc: netdev@vger.kernel.org; Michal Swiatkowski
> <michal.swiatkowski@linux.intel.com>; Fijalkowski, Maciej
> <maciej.fijalkowski@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>
> Subject: [Intel-wired-lan] [PATCH iwl-next v2 0/4] change MSI-X vectors per
> VF
> 
> Hi,
> 
> This patchset is implementing sysfs API introduced here [1].
> 
> It will allow user to assign different amount of MSI-X vectors to VF.
> For example when there are VMs with different number of virtual cores.
> 
> Example:
> 1. Turn off autoprobe
> echo 0 > /sys/bus/pci/devices/0000\:18\:00.0/sriov_drivers_autoprobe
> 2. Create VFs
> echo 4 > /sys/bus/pci/devices/0000\:18\:00.0/sriov_numvfs
> 3. Configure MSI-X
> echo 20 >
> /sys/class/pci_bus/0000\:18/device/0000\:18\:01.0/sriov_vf_msix_count
> 
> v1 --> v2: [2] (Sorry for long time between versions)
>  * rebase
>  * reword commit message in ice: implement num_msix field per VF
> 
> [1] https://lore.kernel.org/netdev/20210314124256.70253-1-
> leon@kernel.org/
> [2] https://lore.kernel.org/netdev/20230615123830.155927-1-
> michal.swiatkowski@linux.intel.com/
> 
> Michal Swiatkowski (4):
>   ice: implement num_msix field per VF
>   ice: add bitmap to track VF MSI-X usage
>   ice: set MSI-X vector count on VF
>   ice: manage VFs MSI-X using resource tracking
> 
>  drivers/net/ethernet/intel/ice/ice.h          |   2 +
>  drivers/net/ethernet/intel/ice/ice_lib.c      |   2 +-
>  drivers/net/ethernet/intel/ice/ice_main.c     |   2 +
>  drivers/net/ethernet/intel/ice/ice_sriov.c    | 257 ++++++++++++++++--
>  drivers/net/ethernet/intel/ice/ice_sriov.h    |  13 +
>  drivers/net/ethernet/intel/ice/ice_vf_lib.h   |   4 +-
>  drivers/net/ethernet/intel/ice/ice_virtchnl.c |   2 +-
>  7 files changed, 258 insertions(+), 24 deletions(-)
> 
> --
> 2.41.0
> 
> _______________________________________________
> Intel-wired-lan mailing list
> Intel-wired-lan@osuosl.org
> https://lists.osuosl.org/mailman/listinfo/intel-wired-lan

Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>