net/mlx5e: Acquire RTNL lock before RQs/SQs activation/deactivation

netif_queue_set_napi asserts whether RTNL lock is held if
the netdev is initialized.

Acquire the RTNL lock before activating or deactivating
RQs/SQs if the lock has not been held before in the flow.

Fixes: f25e7b8 ("net/mlx5e: link NAPI instances to queues and IRQs")
Cc: Joe Damato <[email protected]>
Signed-off-by: Carolina Jubran <[email protected]>
Reviewed-by: Rahul Rameshbabu <[email protected]>
Signed-off-by: Tariq Toukan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: cjubran

drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c

@@ -108,7 +108,10 @@ static int mlx5e_tx_reporter_err_cqe_recover(void *ctx)
 	mlx5e_reset_txqsq_cc_pc(sq);
 	sq->stats->recover++;
 	clear_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state);
+	rtnl_lock();
 	mlx5e_activate_txqsq(sq);
+	rtnl_unlock();
+
 	if (sq->channel)
 		mlx5e_trigger_napi_icosq(sq->channel);
 	else
@@ -179,12 +182,16 @@ static int mlx5e_tx_reporter_ptpsq_unhealthy_recover(void *ctx)
 	carrier_ok = netif_carrier_ok(netdev);
 	netif_carrier_off(netdev);
 
+	rtnl_lock();
 	mlx5e_deactivate_priv_channels(priv);
+	rtnl_unlock();
 
 	mlx5e_ptp_close(chs->ptp);
 	err = mlx5e_ptp_open(priv, &chs->params, chs->c[0]->lag_port, &chs->ptp);
 
+	rtnl_lock();
 	mlx5e_activate_priv_channels(priv);
+	rtnl_unlock();
 
 	/* return carrier back if needed */
 	if (carrier_ok)