diff options
| author | Michal Swiatkowski <michal.swiatkowski@linux.intel.com> | 2021-08-20 02:08:48 +0200 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-10-07 19:41:41 +0200 |
| commit | 3ea9bd5d023177d6a792623509a55590b19ecbe7 (patch) | |
| tree | cd9599322758c760f2b61eaeee4035dae86299ce /drivers/net/ethernet/intel/Kconfig | |
| parent | ethernet: ti: cpts: Use devm_kcalloc() instead of devm_kzalloc() (diff) | |
| download | linux-3ea9bd5d023177d6a792623509a55590b19ecbe7.tar.xz linux-3ea9bd5d023177d6a792623509a55590b19ecbe7.zip | |
ice: support basic E-Switch mode control
Write set and get eswitch mode functions used by devlink
ops. Use new pf struct member eswitch_mode to track current
eswitch mode in driver.
Changing eswitch mode is only allowed when there are no
VFs created.
Create new file for eswitch related code.
Add config flag ICE_SWITCHDEV to allow user to choose if
switchdev support should be enabled or disabled.
Use case examples:
- show current eswitch mode ('legacy' is the default one)
[root@localhost]# devlink dev eswitch show pci/0000:03:00.1
pci/0000:03:00.1: mode legacy
- move to 'switchdev' mode
[root@localhost]# devlink dev eswitch set pci/0000:03:00.1 mode
switchdev
[root@localhost]# devlink dev eswitch show pci/0000:03:00.1
pci/0000:03:00.1: mode switchdev
- create 2 VFs
[root@localhost]# echo 2 > /sys/class/net/ens4f1/device/sriov_numvfs
- unsuccessful attempt to change eswitch mode while VFs are created
[root@localhost]# devlink dev eswitch set pci/0000:03:00.1 mode legacy
devlink answers: Operation not supported
- destroy VFs
[root@localhost]# echo 0 > /sys/class/net/ens4f1/device/sriov_numvfs
- restore 'legacy' mode
[root@localhost]# devlink dev eswitch set pci/0000:03:00.1 mode legacy
[root@localhost]# devlink dev eswitch show pci/0000:03:00.1
pci/0000:03:00.1: mode legacy
Co-developed-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/Kconfig')
| -rw-r--r-- | drivers/net/ethernet/intel/Kconfig | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig index ed8ea63bb172..0b274d8fa45b 100644 --- a/drivers/net/ethernet/intel/Kconfig +++ b/drivers/net/ethernet/intel/Kconfig @@ -313,6 +313,20 @@ config ICE To compile this driver as a module, choose M here. The module will be called ice. +config ICE_SWITCHDEV + bool "Switchdev Support" + default y + depends on ICE && NET_SWITCHDEV + help + Switchdev support provides internal SRIOV packet steering and switching. + + To enable it on running kernel use devlink tool: + #devlink dev eswitch set pci/0000:XX:XX.X mode switchdev + + Say Y here if you want to use Switchdev in the driver. + + If unsure, say N. + config FM10K tristate "Intel(R) FM10000 Ethernet Switch Host Interface Support" default n |