From 3ea9bd5d023177d6a792623509a55590b19ecbe7 Mon Sep 17 00:00:00 2001 From: Michal Swiatkowski Date: Thu, 19 Aug 2021 17:08:48 -0700 Subject: 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 Signed-off-by: Grzegorz Nitka Signed-off-by: Michal Swiatkowski Tested-by: Sandeep Penigalapati Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_devlink.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net/ethernet/intel/ice/ice_devlink.c') diff --git a/drivers/net/ethernet/intel/ice/ice_devlink.c b/drivers/net/ethernet/intel/ice/ice_devlink.c index cae1cd97a1ef..69c9c165f987 100644 --- a/drivers/net/ethernet/intel/ice/ice_devlink.c +++ b/drivers/net/ethernet/intel/ice/ice_devlink.c @@ -4,6 +4,7 @@ #include "ice.h" #include "ice_lib.h" #include "ice_devlink.h" +#include "ice_eswitch.h" #include "ice_fw_update.h" /* context for devlink info version reporting */ @@ -423,6 +424,8 @@ ice_devlink_flash_update(struct devlink *devlink, static const struct devlink_ops ice_devlink_ops = { .supported_flash_update_params = DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK, + .eswitch_mode_get = ice_eswitch_mode_get, + .eswitch_mode_set = ice_eswitch_mode_set, .info_get = ice_devlink_info_get, .flash_update = ice_devlink_flash_update, }; -- cgit v1.2.3-70-g09d2