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net/mlx4: Strengthen VLAN tags/priorities enforcement in VST mode 

Make sure that the following steps are taken:

- drop packets sent by the VF with vlan tag
- block packets with vlan tag which are steered to the VF
- drop/block tagged packets when the policy is priority-tagged
- make sure VLAN stripping for received packets is set
- make sure force UP bit for the VF QP is set

Use enum values for all the above instead of numerical bit offsets.

Signed-off-by: Rony Efraim <ronye@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rony Efraim 2013-05-08 22:22:35 +00:00 committed by David S. Miller
parent 4e8cf5b8a1
commit 7677fc965f
3 changed files with 45 additions and 6 deletions
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2
drivers/net/ethernet/mellanox/mlx4/en_resources.c
View File

@ -60,7 +60,7 @@ void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6;
if (user_prio >= 0) {
context->pri_path.sched_queue |= user_prio << 3;
context->pri_path.feup = 1 << 6;
context->pri_path.feup = MLX4_FEUP_FORCE_ETH_UP;
}
context->pri_path.counter_index = 0xff;
context->cqn_send = cpu_to_be32(cqn);

20
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
View File

@ -372,14 +372,28 @@ static int update_vport_qp_param(struct mlx4_dev *dev,
if (MLX4_QP_ST_RC == qp_type)
return -EINVAL;
/* force strip vlan by clear vsd */
qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN);
if (0 != vp_oper->state.default_vlan) {
qpc->pri_path.vlan_control =
MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
} else { /* priority tagged */
qpc->pri_path.vlan_control =
MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
}
qpc->pri_path.fvl_rx |= MLX4_FVL_RX_FORCE_ETH_VLAN;
qpc->pri_path.vlan_index = vp_oper->vlan_idx;
qpc->pri_path.fl = (1 << 6) | (1 << 2); /* set cv bit and hide_cqe_vlan bit*/
qpc->pri_path.feup |= 1 << 3; /* set fvl bit */
qpc->pri_path.fl |= MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
qpc->pri_path.feup |= MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
qpc->pri_path.sched_queue &= 0xC7;
qpc->pri_path.sched_queue |= (vp_oper->state.default_qos) << 3;
}
if (vp_oper->state.spoofchk) {
qpc->pri_path.feup |= 1 << 5; /* set fsm bit */;
qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC;
qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx;
}
return 0;

29
include/linux/mlx4/qp.h
View File

@ -126,7 +126,7 @@ struct mlx4_rss_context {
struct mlx4_qp_path {
u8 fl;
u8 reserved1[1];
u8 vlan_control;
u8 disable_pkey_check;
u8 pkey_index;
u8 counter_index;
@ -141,11 +141,32 @@ struct mlx4_qp_path {
u8 sched_queue;
u8 vlan_index;
u8 feup;
u8 reserved3;
u8 fvl_rx;
u8 reserved4[2];
u8 dmac[6];
};
enum { /* fl */
MLX4_FL_CV = 1 << 6,
MLX4_FL_ETH_HIDE_CQE_VLAN = 1 << 2
};
enum { /* vlan_control */
MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED = 1 << 6,
MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED = 1 << 2,
MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED = 1 << 1, /* 802.1p priority tag */
MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED = 1 << 0
};
enum { /* feup */
MLX4_FEUP_FORCE_ETH_UP = 1 << 6, /* force Eth UP */
MLX4_FSM_FORCE_ETH_SRC_MAC = 1 << 5, /* force Source MAC */
MLX4_FVL_FORCE_ETH_VLAN = 1 << 3 /* force Eth vlan */
};
enum { /* fvl_rx */
MLX4_FVL_RX_FORCE_ETH_VLAN = 1 << 0 /* enforce Eth rx vlan */
};
struct mlx4_qp_context {
__be32 flags;
__be32 pd;
@ -185,6 +206,10 @@ struct mlx4_qp_context {
u32 reserved5[10];
};
enum { /* param3 */
MLX4_STRIP_VLAN = 1 << 30
};
/* Which firmware version adds support for NEC (NoErrorCompletion) bit */
#define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)