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From: Saeed Mahameed <saeedm@mellanox.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, Aya Levin <ayal@mellanox.com>,
	Eran Ben Elisha <eranbe@mellanox.com>,
	Saeed Mahameed <saeedm@mellanox.com>
Subject: [net 4/6] net/mlx5e: Allow MAC invalidation while spoofchk is ON
Date: Fri, 25 Jan 2019 12:01:38 -0800	[thread overview]
Message-ID: <20190125200140.6222-5-saeedm@mellanox.com> (raw)
In-Reply-To: <20190125200140.6222-1-saeedm@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Prior to this patch the driver prohibited spoof checking on invalid MAC.
Now the user can set this configuration if it wishes to.

This is required since libvirt might invalidate the VF Mac by setting it
to zero, while spoofcheck is ON.

Fixes: 1ab2068a4c66 ("net/mlx5: Implement vports admin state backup/restore")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/eswitch.c  | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index ab7a038c207c..5b492b67f4e1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1134,13 +1134,6 @@ static int esw_vport_ingress_config(struct mlx5_eswitch *esw,
 	int err = 0;
 	u8 *smac_v;
 
-	if (vport->info.spoofchk && !is_valid_ether_addr(vport->info.mac)) {
-		mlx5_core_warn(esw->dev,
-			       "vport[%d] configure ingress rules failed, illegal mac with spoofchk\n",
-			       vport->vport);
-		return -EPERM;
-	}
-
 	esw_vport_cleanup_ingress_rules(esw, vport);
 
 	if (!vport->info.vlan && !vport->info.qos && !vport->info.spoofchk) {
@@ -1827,13 +1820,10 @@ int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
 	mutex_lock(&esw->state_lock);
 	evport = &esw->vports[vport];
 
-	if (evport->info.spoofchk && !is_valid_ether_addr(mac)) {
+	if (evport->info.spoofchk && !is_valid_ether_addr(mac))
 		mlx5_core_warn(esw->dev,
-			       "MAC invalidation is not allowed when spoofchk is on, vport(%d)\n",
+			       "Set invalid MAC while spoofchk is on, vport(%d)\n",
 			       vport);
-		err = -EPERM;
-		goto unlock;
-	}
 
 	err = mlx5_modify_nic_vport_mac_address(esw->dev, vport, mac);
 	if (err) {
@@ -1979,6 +1969,10 @@ int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
 	evport = &esw->vports[vport];
 	pschk = evport->info.spoofchk;
 	evport->info.spoofchk = spoofchk;
+	if (pschk && !is_valid_ether_addr(evport->info.mac))
+		mlx5_core_warn(esw->dev,
+			       "Spoofchk in set while MAC is invalid, vport(%d)\n",
+			       evport->vport);
 	if (evport->enabled && esw->mode == SRIOV_LEGACY)
 		err = esw_vport_ingress_config(esw, evport);
 	if (err)
-- 
2.20.1


  parent reply	other threads:[~2019-01-25 20:01 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-25 20:01 [pull request][net 0/6] Mellanox, mlx5 fixes 2019-01-25 Saeed Mahameed
2019-01-25 20:01 ` [net 1/6] Revert "net/mlx5e: E-Switch, Initialize eswitch only if eswitch manager" Saeed Mahameed
2019-01-25 20:01 ` [net 2/6] net/mlx5e: Fix wrong private flag usage causing checksum disable Saeed Mahameed
2019-01-25 20:01 ` [net 3/6] net/mlx5: Take lock with IRQs disabled to avoid deadlock Saeed Mahameed
2019-01-25 20:01 ` Saeed Mahameed [this message]
2019-01-25 20:01 ` [net 5/6] net/mlx5e: Move to use common phys port names for vport representors Saeed Mahameed
2019-01-25 20:01 ` [net 6/6] net/mlx5e: Unblock setting vid 0 for VFs through the uplink rep Saeed Mahameed
2019-01-27 19:39 ` [pull request][net 0/6] Mellanox, mlx5 fixes 2019-01-25 David Miller

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