From: Matan Barak <matanb@xxxxxxxxxxxx>
When a Raw Ethernet QP is created, we actually create a few objects.
One of these objects is a TIR. Currently, a TIR could hash (and spread
the traffic) by IP or port only. Adding a hashing by IPSec SPI to TIR
creation with the required UAPI bit.
Signed-off-by: Matan Barak <matanb@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/main.c | 4 ++++
drivers/infiniband/hw/mlx5/qp.c | 16 ++++++++++++----
include/uapi/rdma/mlx5-abi.h | 1 +
3 files changed, 17 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 4cf98f8716ad..5746553f232a 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -861,6 +861,10 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
MLX5_RX_HASH_SRC_PORT_UDP |
MLX5_RX_HASH_DST_PORT_UDP |
MLX5_RX_HASH_INNER;
+ if (mlx5_accel_ipsec_device_caps(dev->mdev) &
+ MLX5_ACCEL_IPSEC_CAP_DEVICE)
+ resp.rss_caps.rx_hash_fields_mask |=
+ MLX5_RX_HASH_IPSEC_SPI;
resp.response_length += sizeof(resp.rss_caps);
}
} else {
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index c152c6f35101..d4476d4e8a8b 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -1413,6 +1413,7 @@ static int create_rss_raw_qp_tir(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
void *tirc;
void *hfso;
u32 selected_fields = 0;
+ u32 outer_l4;
size_t min_resp_len;
u32 tdn = mucontext->tdn;
struct mlx5_ib_create_qp_rss ucmd = {};
@@ -1543,10 +1544,14 @@ static int create_rss_raw_qp_tir(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
MLX5_L3_PROT_TYPE_IPV6);
- if (((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_PORT_TCP) ||
- (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_TCP)) &&
- ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_PORT_UDP) ||
- (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_UDP))) {
+ outer_l4 = ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_PORT_TCP) ||
+ (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_TCP)) << 0 |
+ ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_PORT_UDP) ||
+ (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_UDP)) << 1 |
+ (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_IPSEC_SPI) << 2;
+
+ /* Check that only one l4 protocol is set */
+ if (outer_l4 & (outer_l4 - 1)) {
err = -EINVAL;
goto err;
}
@@ -1577,6 +1582,9 @@ static int create_rss_raw_qp_tir(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
(ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_UDP))
selected_fields |= MLX5_HASH_FIELD_SEL_L4_DPORT;
+ if (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_IPSEC_SPI)
+ selected_fields |= MLX5_HASH_FIELD_SEL_IPSEC_SPI;
+
MLX5_SET(rx_hash_field_select, hfso, selected_fields, selected_fields);
create_tir:
diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h
index fae84fabadc1..ede510c32b87 100644
--- a/include/uapi/rdma/mlx5-abi.h
+++ b/include/uapi/rdma/mlx5-abi.h
@@ -327,6 +327,7 @@ enum mlx5_rx_hash_fields {
MLX5_RX_HASH_DST_PORT_TCP = 1 << 5,
MLX5_RX_HASH_SRC_PORT_UDP = 1 << 6,
MLX5_RX_HASH_DST_PORT_UDP = 1 << 7,
+ MLX5_RX_HASH_IPSEC_SPI = 1 << 8,
/* Save bits for future fields */
MLX5_RX_HASH_INNER = (1UL << 31),
};
--
2.14.3
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