ice: Fix VSI list rule with ICE_SW_LKUP_LAST type

Adding/updating VSI list rule, as well as allocating/freeing VSI list
resource are called several times with type ICE_SW_LKUP_LAST, which fails
because ice_update_vsi_list_rule() and ice_aq_alloc_free_vsi_list()
consider it invalid. Allow calling these functions with ICE_SW_LKUP_LAST.

This fixes at least one issue in switchdev mode, where the same rule with
different action cannot be added, e.g.:

  tc filter add dev $PF1 ingress protocol arp prio 0 flower skip_sw \
    dst_mac ff:ff:ff:ff:ff:ff action mirred egress redirect dev $VF1_PR
  tc filter add dev $PF1 ingress protocol arp prio 0 flower skip_sw \
    dst_mac ff:ff:ff:ff:ff:ff action mirred egress redirect dev $VF2_PR

Fixes: 0f94570d0cae ("ice: allow adding advanced rules")
Suggested-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20240618210206.981885-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index 94d6670d0901388f5105839905c028f54c1748ec..1191031b2a43d15d5cded3c16cfaa8d4baf63220 100644 (file)
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -1899,7 +1899,8 @@ ice_aq_alloc_free_vsi_list(struct ice_hw *hw, u16 *vsi_list_id,
            lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC ||
            lkup_type == ICE_SW_LKUP_PROMISC ||
            lkup_type == ICE_SW_LKUP_PROMISC_VLAN ||
-           lkup_type == ICE_SW_LKUP_DFLT) {
+           lkup_type == ICE_SW_LKUP_DFLT ||
+           lkup_type == ICE_SW_LKUP_LAST) {
                sw_buf->res_type = cpu_to_le16(ICE_AQC_RES_TYPE_VSI_LIST_REP);
        } else if (lkup_type == ICE_SW_LKUP_VLAN) {
                if (opc == ice_aqc_opc_alloc_res)
@@ -2922,7 +2923,8 @@ ice_update_vsi_list_rule(struct ice_hw *hw, u16 *vsi_handle_arr, u16 num_vsi,
            lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC ||
            lkup_type == ICE_SW_LKUP_PROMISC ||
            lkup_type == ICE_SW_LKUP_PROMISC_VLAN ||
-           lkup_type == ICE_SW_LKUP_DFLT)
+           lkup_type == ICE_SW_LKUP_DFLT ||
+           lkup_type == ICE_SW_LKUP_LAST)
                rule_type = remove ? ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR :
                        ICE_AQC_SW_RULES_T_VSI_LIST_SET;
        else if (lkup_type == ICE_SW_LKUP_VLAN)