[PATCH 5.19 135/207] ice: config netdev tc before setting queues number

Greg Kroah-Hartman
2022-09-26T12:07:21Z

From: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>

[ Upstream commit 122045ca770492660005c22379995506f13efea8 ]

After lowering number of tx queues the warning appears:
"Number of in use tx queues changed invalidating tc mappings. Priority
traffic classification disabled!"
Example command to reproduce:
ethtool -L enp24s0f0 tx 36 rx 36

Fix this by setting correct tc mapping before setting real number of
queues on netdev.

Fixes: 0754d65bd4be5 ("ice: Add infrastructure for mqprio support via ndo_setup_tc")
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/intel/ice/ice_main.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 0b567e8e3674..f963036571e0 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -6836,6 +6836,8 @@ int ice_vsi_open(struct ice_vsi *vsi)
if (err)
goto err_setup_rx;

+ ice_vsi_cfg_netdev_tc(vsi, vsi->tc_cfg.ena_tc);
+
if (vsi->type == ICE_VSI_PF) {
/* Notify the stack of the actual queue counts. */
err = netif_set_real_num_tx_queues(vsi->netdev, vsi->num_txq);
--
2.35.1