[v3,01/14] common/mlx5: introduce user index field in completion
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Commit Message
On ConnectX devices the completion entry provides the dedicated 24-bit
field, that is filled up with some static value assigned at the
Receiving Queue creation moment. This patch declares this field. This is
a preparation step for supporting shared RQs and the field is supposed
to provide actual port index while handling the shared receiving
queue(s).
Signed-off-by: Xueming Li <xuemingl@nvidia.com>
---
drivers/common/mlx5/mlx5_prm.h | 8 +++++++-
drivers/regex/mlx5/mlx5_regex_fastpath.c | 2 +-
2 files changed, 8 insertions(+), 2 deletions(-)
Comments
> -----Original Message-----
> From: Xueming(Steven) Li <xuemingl@nvidia.com>
> Sent: Wednesday, November 3, 2021 9:58
> To: dev@dpdk.org
> Cc: Xueming(Steven) Li <xuemingl@nvidia.com>; Lior Margalit
> <lmargalit@nvidia.com>; Matan Azrad <matan@nvidia.com>; Slava Ovsiienko
> <viacheslavo@nvidia.com>; Ori Kam <orika@nvidia.com>
> Subject: [PATCH v3 01/14] common/mlx5: introduce user index field in
> completion
>
> On ConnectX devices the completion entry provides the dedicated 24-bit
> field, that is filled up with some static value assigned at the Receiving Queue
> creation moment. This patch declares this field. This is a preparation step for
> supporting shared RQs and the field is supposed to provide actual port index
> while handling the shared receiving queue(s).
>
>
> Signed-off-by: Xueming Li <xuemingl@nvidia.com>
For the entire series:
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
@@ -393,7 +393,13 @@ struct mlx5_cqe {
uint16_t hdr_type_etc;
uint16_t vlan_info;
uint8_t lro_num_seg;
- uint8_t rsvd3[3];
+ union {
+ uint8_t user_index_bytes[3];
+ struct {
+ uint8_t user_index_hi;
+ uint16_t user_index_low;
+ } __rte_packed;
+ };
uint32_t flow_table_metadata;
uint8_t rsvd4[4];
uint32_t byte_cnt;
@@ -559,7 +559,7 @@ mlx5_regexdev_dequeue(struct rte_regexdev *dev, uint16_t qp_id,
uint16_t wq_counter
= (rte_be_to_cpu_16(cqe->wqe_counter) + 1) &
MLX5_REGEX_MAX_WQE_INDEX;
- size_t hw_qpid = cqe->rsvd3[2];
+ size_t hw_qpid = cqe->user_index_bytes[2];
struct mlx5_regex_hw_qp *qp_obj = &queue->qps[hw_qpid];
/* UMR mode WQE counter move as WQE set(4 WQEBBS).*/