IB/mlx5: Support setting Ethernet priority for Raw Packet QPs

When the user changes the Address Vector(AV) in the modify QP, he
provides an SL. This SL should be translated to Ethernet Priority
by taking the 3 LSB bits, and modify the QP's TIS according to this
Ethernet priority.

Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
这个提交包含在:
majd@mellanox.com
2016-01-14 19:13:06 +02:00
提交者 Doug Ledford
父节点 6d2f89df04
当前提交 75850d0bce
修改 4 个文件,包含 57 行新增4 行删除

查看文件

@@ -1752,7 +1752,33 @@ static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate)
return rate + MLX5_STAT_RATE_OFFSET;
}
static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah,
static int modify_raw_packet_eth_prio(struct mlx5_core_dev *dev,
struct mlx5_ib_sq *sq, u8 sl)
{
void *in;
void *tisc;
int inlen;
int err;
inlen = MLX5_ST_SZ_BYTES(modify_tis_in);
in = mlx5_vzalloc(inlen);
if (!in)
return -ENOMEM;
MLX5_SET(modify_tis_in, in, bitmask.prio, 1);
tisc = MLX5_ADDR_OF(modify_tis_in, in, ctx);
MLX5_SET(tisc, tisc, prio, ((sl & 0x7) << 1));
err = mlx5_core_modify_tis(dev, sq->tisn, in, inlen);
kvfree(in);
return err;
}
static int mlx5_set_path(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
const struct ib_ah_attr *ah,
struct mlx5_qp_path *path, u8 port, int attr_mask,
u32 path_flags, const struct ib_qp_attr *attr)
{
@@ -1808,6 +1834,11 @@ static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah,
if (attr_mask & IB_QP_TIMEOUT)
path->ackto_lt = attr->timeout << 3;
if ((qp->ibqp.qp_type == IB_QPT_RAW_PACKET) && qp->sq.wqe_cnt)
return modify_raw_packet_eth_prio(dev->mdev,
&qp->raw_packet_qp.sq,
ah->sl & 0xf);
return 0;
}
@@ -2029,7 +2060,7 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
context->pri_path.port = attr->port_num;
if (attr_mask & IB_QP_AV) {
err = mlx5_set_path(dev, &attr->ah_attr, &context->pri_path,
err = mlx5_set_path(dev, qp, &attr->ah_attr, &context->pri_path,
attr_mask & IB_QP_PORT ? attr->port_num : qp->port,
attr_mask, 0, attr);
if (err)
@@ -2040,7 +2071,8 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
context->pri_path.ackto_lt |= attr->timeout << 3;
if (attr_mask & IB_QP_ALT_PATH) {
err = mlx5_set_path(dev, &attr->alt_ah_attr, &context->alt_path,
err = mlx5_set_path(dev, qp, &attr->alt_ah_attr,
&context->alt_path,
attr->alt_port_num, attr_mask, 0, attr);
if (err)
goto out;