Merge branch 'mlx5-misc-fixes-2024-12-20'

Tariq Toukan says:

====================
mlx5 misc fixes 2024-12-20

This small patchset provides misc bug fixes from the team to the mlx5
core and Eth drivers.
====================

Link: https://patch.msgid.link/20241220081505.1286093-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c

@@ -339,9 +339,13 @@ static int mlx5e_macsec_init_sa_fs(struct macsec_context *ctx,
 {
 	struct mlx5e_priv *priv = macsec_netdev_priv(ctx->netdev);
 	struct mlx5_macsec_fs *macsec_fs = priv->mdev->macsec_fs;
+	const struct macsec_tx_sc *tx_sc = &ctx->secy->tx_sc;
 	struct mlx5_macsec_rule_attrs rule_attrs;
 	union mlx5_macsec_rule *macsec_rule;
 
+	if (is_tx && tx_sc->encoding_sa != sa->assoc_num)
+		return 0;
+
 	rule_attrs.macsec_obj_id = sa->macsec_obj_id;
 	rule_attrs.sci = sa->sci;
 	rule_attrs.assoc_num = sa->assoc_num;

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -6542,8 +6542,23 @@ static void _mlx5e_remove(struct auxiliary_device *adev)
 
 	mlx5_core_uplink_netdev_set(mdev, NULL);
 	mlx5e_dcbnl_delete_app(priv);
-	unregister_netdev(priv->netdev);
-	_mlx5e_suspend(adev, false);
+	/* When unload driver, the netdev is in registered state
+	 * if it's from legacy mode. If from switchdev mode, it
+	 * is already unregistered before changing to NIC profile.
+	 */
+	if (priv->netdev->reg_state == NETREG_REGISTERED) {
+		unregister_netdev(priv->netdev);
+		_mlx5e_suspend(adev, false);
+	} else {
+		struct mlx5_core_dev *pos;
+		int i;
+
+		if (test_bit(MLX5E_STATE_DESTROYING, &priv->state))
+			mlx5_sd_for_each_dev(i, mdev, pos)
+				mlx5e_destroy_mdev_resources(pos);
+		else
+			_mlx5e_suspend(adev, true);
+	}
 	/* Avoid cleanup if profile rollback failed. */
 	if (priv->profile)
 		priv->profile->cleanup(priv);

drivers/net/ethernet/mellanox/mlx5/core/en_rep.c

@@ -1509,6 +1509,21 @@ mlx5e_vport_uplink_rep_unload(struct mlx5e_rep_priv *rpriv)
 
 	priv = netdev_priv(netdev);
 
+	/* This bit is set when using devlink to change eswitch mode from
+	 * switchdev to legacy. As need to keep uplink netdev ifindex, we
+	 * detach uplink representor profile and attach NIC profile only.
+	 * The netdev will be unregistered later when unload NIC auxiliary
+	 * driver for this case.
+	 * We explicitly block devlink eswitch mode change if any IPSec rules
+	 * offloaded, but can't block other cases, such as driver unload
+	 * and devlink reload. We have to unregister netdev before profile
+	 * change for those cases. This is to avoid resource leak because
+	 * the offloaded rules don't have the chance to be unoffloaded before
+	 * cleanup which is triggered by detach uplink representor profile.
+	 */
+	if (!(priv->mdev->priv.flags & MLX5_PRIV_FLAGS_SWITCH_LEGACY))
+		unregister_netdev(netdev);
+
 	mlx5e_netdev_attach_nic_profile(priv);
 }
 

drivers/net/ethernet/mellanox/mlx5/core/esw/ipsec_fs.c

@@ -150,11 +150,11 @@ void mlx5_esw_ipsec_restore_dest_uplink(struct mlx5_core_dev *mdev)
 	unsigned long i;
 	int err;
 
-	xa_for_each(&esw->offloads.vport_reps, i, rep) {
-		rpriv = rep->rep_data[REP_ETH].priv;
-		if (!rpriv || !rpriv->netdev)
+	mlx5_esw_for_each_rep(esw, i, rep) {
+		if (atomic_read(&rep->rep_data[REP_ETH].state) != REP_LOADED)
 			continue;
 
+		rpriv = rep->rep_data[REP_ETH].priv;
 		rhashtable_walk_enter(&rpriv->tc_ht, &iter);
 		rhashtable_walk_start(&iter);
 		while ((flow = rhashtable_walk_next(&iter)) != NULL) {

drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

@@ -714,6 +714,9 @@ void mlx5e_tc_clean_fdb_peer_flows(struct mlx5_eswitch *esw);
 			  MLX5_CAP_GEN_2((esw->dev), ec_vf_vport_base) +\
 			  (last) - 1)
 
+#define mlx5_esw_for_each_rep(esw, i, rep) \
+	xa_for_each(&((esw)->offloads.vport_reps), i, rep)
+
 struct mlx5_eswitch *__must_check
 mlx5_devlink_eswitch_get(struct devlink *devlink);
 

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

@@ -53,9 +53,6 @@
 #include "lag/lag.h"
 #include "en/tc/post_meter.h"
 
-#define mlx5_esw_for_each_rep(esw, i, rep) \
-	xa_for_each(&((esw)->offloads.vport_reps), i, rep)
-
 /* There are two match-all miss flows, one for unicast dst mac and
  * one for multicast.
  */
@@ -3780,6 +3777,8 @@ int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
 	esw->eswitch_operation_in_progress = true;
 	up_write(&esw->mode_lock);
 
+	if (mode == DEVLINK_ESWITCH_MODE_LEGACY)
+		esw->dev->priv.flags |= MLX5_PRIV_FLAGS_SWITCH_LEGACY;
 	mlx5_eswitch_disable_locked(esw);
 	if (mode == DEVLINK_ESWITCH_MODE_SWITCHDEV) {
 		if (mlx5_devlink_trap_get_num_active(esw->dev)) {

drivers/net/ethernet/mellanox/mlx5/core/steering/sws/dr_send.c

@@ -1067,7 +1067,6 @@ static struct mlx5dr_cq *dr_create_cq(struct mlx5_core_dev *mdev,
 	int inlen, err, eqn;
 	void *cqc, *in;
 	__be64 *pas;
-	int vector;
 	u32 i;
 
 	cq = kzalloc(sizeof(*cq), GFP_KERNEL);
@@ -1096,8 +1095,7 @@ static struct mlx5dr_cq *dr_create_cq(struct mlx5_core_dev *mdev,
 	if (!in)
 		goto err_cqwq;
 
-	vector = raw_smp_processor_id() % mlx5_comp_vectors_max(mdev);
-	err = mlx5_comp_eqn_get(mdev, vector, &eqn);
+	err = mlx5_comp_eqn_get(mdev, 0, &eqn);
 	if (err) {
 		kvfree(in);
 		goto err_cqwq;

include/linux/mlx5/driver.h

@@ -524,6 +524,7 @@ enum {
 	 * creation/deletion on drivers rescan. Unset during device attach.
 	 */
 	MLX5_PRIV_FLAGS_DETACH = 1 << 2,
+	MLX5_PRIV_FLAGS_SWITCH_LEGACY = 1 << 3,
 };
 
 struct mlx5_adev {