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-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_ethtool.c16
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_netdev.c46
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_rx.c16
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_tx.c13
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mlx4_en.h1
5 files changed, 87 insertions, 5 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index 70f65534e786..f79d8124321e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -102,6 +102,7 @@ mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
static const char mlx4_en_priv_flags[][ETH_GSTRING_LEN] = {
"blueflame",
+ "phv-bit"
};
static const char main_strings[][ETH_GSTRING_LEN] = {
@@ -1797,9 +1798,13 @@ static int mlx4_en_get_ts_info(struct net_device *dev,
static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
+ bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV);
+ bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV);
int i;
+ int ret = 0;
if (bf_enabled_new != bf_enabled_old) {
if (bf_enabled_new) {
@@ -1825,6 +1830,17 @@ static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
bf_enabled_new ? "Enabled" : "Disabled");
}
+ if (phv_enabled_new != phv_enabled_old) {
+ ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new);
+ if (ret)
+ return ret;
+ else if (phv_enabled_new)
+ priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
+ else
+ priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV;
+ en_info(priv, "PHV bit %s\n",
+ phv_enabled_new ? "Enabled" : "Disabled");
+ }
return 0;
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index e0de2fd1ce12..4726122ea76b 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2184,6 +2184,25 @@ static int mlx4_en_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
}
}
+static netdev_features_t mlx4_en_fix_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct mlx4_en_priv *en_priv = netdev_priv(netdev);
+ struct mlx4_en_dev *mdev = en_priv->mdev;
+
+ /* Since there is no support for separate RX C-TAG/S-TAG vlan accel
+ * enable/disable make sure S-TAG flag is always in same state as
+ * C-TAG.
+ */
+ if (features & NETIF_F_HW_VLAN_CTAG_RX &&
+ !(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN))
+ features |= NETIF_F_HW_VLAN_STAG_RX;
+ else
+ features &= ~NETIF_F_HW_VLAN_STAG_RX;
+
+ return features;
+}
+
static int mlx4_en_set_features(struct net_device *netdev,
netdev_features_t features)
{
@@ -2218,6 +2237,10 @@ static int mlx4_en_set_features(struct net_device *netdev,
en_info(priv, "Turn %s TX vlan strip offload\n",
(features & NETIF_F_HW_VLAN_CTAG_TX) ? "ON" : "OFF");
+ if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_STAG_TX))
+ en_info(priv, "Turn %s TX S-VLAN strip offload\n",
+ (features & NETIF_F_HW_VLAN_STAG_TX) ? "ON" : "OFF");
+
if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_LOOPBACK)) {
en_info(priv, "Turn %s loopback\n",
(features & NETIF_F_LOOPBACK) ? "ON" : "OFF");
@@ -2460,6 +2483,7 @@ static const struct net_device_ops mlx4_netdev_ops = {
.ndo_poll_controller = mlx4_en_netpoll,
#endif
.ndo_set_features = mlx4_en_set_features,
+ .ndo_fix_features = mlx4_en_fix_features,
.ndo_setup_tc = mlx4_en_setup_tc,
#ifdef CONFIG_RFS_ACCEL
.ndo_rx_flow_steer = mlx4_en_filter_rfs,
@@ -2500,6 +2524,7 @@ static const struct net_device_ops mlx4_netdev_ops_master = {
.ndo_poll_controller = mlx4_en_netpoll,
#endif
.ndo_set_features = mlx4_en_set_features,
+ .ndo_fix_features = mlx4_en_fix_features,
.ndo_setup_tc = mlx4_en_setup_tc,
#ifdef CONFIG_RFS_ACCEL
.ndo_rx_flow_steer = mlx4_en_filter_rfs,
@@ -2931,6 +2956,27 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
dev->hw_features |= NETIF_F_LOOPBACK |
NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
+ if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) {
+ dev->features |= NETIF_F_HW_VLAN_STAG_RX |
+ NETIF_F_HW_VLAN_STAG_FILTER;
+ dev->hw_features |= NETIF_F_HW_VLAN_STAG_RX;
+ }
+
+ if (mlx4_is_slave(mdev->dev)) {
+ int phv;
+
+ err = get_phv_bit(mdev->dev, port, &phv);
+ if (!err && phv) {
+ dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX;
+ priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
+ }
+ } else {
+ if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN &&
+ !(mdev->dev->caps.flags2 &
+ MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN))
+ dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX;
+ }
+
if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)
dev->hw_features |= NETIF_F_RXFCS;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 10f6c2f1d5a0..a67fbb90d69e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -912,6 +912,12 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
u16 vid = be16_to_cpu(cqe->sl_vid);
__vlan_hwaccel_put_tag(gro_skb, htons(ETH_P_8021Q), vid);
+ } else if ((be32_to_cpu(cqe->vlan_my_qpn) &
+ MLX4_CQE_SVLAN_PRESENT_MASK) &&
+ (dev->features & NETIF_F_HW_VLAN_STAG_RX)) {
+ __vlan_hwaccel_put_tag(gro_skb,
+ htons(ETH_P_8021AD),
+ be16_to_cpu(cqe->sl_vid));
}
if (dev->features & NETIF_F_RXHASH)
@@ -973,6 +979,11 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
MLX4_CQE_CVLAN_PRESENT_MASK) &&
(dev->features & NETIF_F_HW_VLAN_CTAG_RX))
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), be16_to_cpu(cqe->sl_vid));
+ else if ((be32_to_cpu(cqe->vlan_my_qpn) &
+ MLX4_CQE_SVLAN_PRESENT_MASK) &&
+ (dev->features & NETIF_F_HW_VLAN_STAG_RX))
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021AD),
+ be16_to_cpu(cqe->sl_vid));
if (ring->hwtstamp_rx_filter == HWTSTAMP_FILTER_ALL) {
timestamp = mlx4_en_get_cqe_ts(cqe);
@@ -1070,7 +1081,10 @@ static const int frag_sizes[] = {
void mlx4_en_calc_rx_buf(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
- int eff_mtu = dev->mtu + ETH_HLEN + VLAN_HLEN;
+ /* VLAN_HLEN is added twice,to support skb vlan tagged with multiple
+ * headers. (For example: ETH_P_8021Q and ETH_P_8021AD).
+ */
+ int eff_mtu = dev->mtu + ETH_HLEN + (2 * VLAN_HLEN);
int buf_size = 0;
int i = 0;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 7c858f67ef28..494e7762fdb1 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -718,6 +718,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
u32 index, bf_index;
__be32 op_own;
u16 vlan_tag = 0;
+ u16 vlan_proto = 0;
int i_frag;
int lso_header_size;
void *fragptr = NULL;
@@ -750,9 +751,10 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
goto tx_drop;
}
- if (skb_vlan_tag_present(skb))
+ if (skb_vlan_tag_present(skb)) {
vlan_tag = skb_vlan_tag_get(skb);
-
+ vlan_proto = be16_to_cpu(skb->vlan_proto);
+ }
netdev_txq_bql_enqueue_prefetchw(ring->tx_queue);
@@ -958,8 +960,11 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
ring->bf.offset ^= ring->bf.buf_size;
} else {
tx_desc->ctrl.vlan_tag = cpu_to_be16(vlan_tag);
- tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_CVLAN *
- !!skb_vlan_tag_present(skb);
+ if (vlan_proto == ETH_P_8021AD)
+ tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_SVLAN;
+ else if (vlan_proto == ETH_P_8021Q)
+ tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_CVLAN;
+
tx_desc->ctrl.fence_size = real_size;
/* Ensure new descriptor hits memory
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 666d1669eb52..defcf8c395bf 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -95,6 +95,7 @@
*/
#define MLX4_EN_PRIV_FLAGS_BLUEFLAME 1
+#define MLX4_EN_PRIV_FLAGS_PHV 2
#define MLX4_EN_WATCHDOG_TIMEOUT (15 * HZ)
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-27 11:17:57 +0300