[dpdk-dev] [PATCH v1 3/3] common/mlx5: remove devx dependency on ibv and DV

Ophir Munk ophirmu at mellanox.com
Tue May 5 13:20:57 CEST 2020


File mlx5_devx_cmds.c should contain pure DevX calls. It must be OS
agnostic and not include any references to ibv or dv structs (defined in
ibverbs and rdma-core linux libraries).  This commit replaces all ibv
and dv references with 'void *'.  Specifically, the following struct
were replaced:
1. struct ibv_context *
2. struct ibv_qp *
3. struct mlx5dv_devx_cmd_comp *

Signed-off-by: Ophir Munk <ophirmu at mellanox.com>
Acked-by: Matan Azrad <matan at mellanox.com>
---
 drivers/common/mlx5/mlx5_devx_cmds.c | 59 ++++++++++++++++++------------------
 drivers/common/mlx5/mlx5_devx_cmds.h | 30 +++++++++---------
 2 files changed, 44 insertions(+), 45 deletions(-)

diff --git a/drivers/common/mlx5/mlx5_devx_cmds.c b/drivers/common/mlx5/mlx5_devx_cmds.c
index 67c8a8c..230ac58 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.c
+++ b/drivers/common/mlx5/mlx5_devx_cmds.c
@@ -15,7 +15,7 @@
  * Allocate flow counters via devx interface.
  *
  * @param[in] ctx
- *   ibv contexts returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param dcs
  *   Pointer to counters properties structure to be filled by the routine.
  * @param bulk_n_128
@@ -26,7 +26,7 @@
  *   rte_errno is set.
  */
 struct mlx5_devx_obj *
-mlx5_devx_cmd_flow_counter_alloc(struct ibv_context *ctx, uint32_t bulk_n_128)
+mlx5_devx_cmd_flow_counter_alloc(void *ctx, uint32_t bulk_n_128)
 {
 	struct mlx5_devx_obj *dcs = rte_zmalloc("dcs", sizeof(*dcs), 0);
 	uint32_t in[MLX5_ST_SZ_DW(alloc_flow_counter_in)]   = {0};
@@ -81,7 +81,7 @@ mlx5_devx_cmd_flow_counter_query(struct mlx5_devx_obj *dcs,
 				 int clear, uint32_t n_counters,
 				 uint64_t *pkts, uint64_t *bytes,
 				 uint32_t mkey, void *addr,
-				 struct mlx5dv_devx_cmd_comp *cmd_comp,
+				 void *cmd_comp,
 				 uint64_t async_id)
 {
 	int out_len = MLX5_ST_SZ_BYTES(query_flow_counter_out) +
@@ -130,7 +130,7 @@ mlx5_devx_cmd_flow_counter_query(struct mlx5_devx_obj *dcs,
  * Create a new mkey.
  *
  * @param[in] ctx
- *   ibv contexts returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param[in] attr
  *   Attributes of the requested mkey.
  *
@@ -139,7 +139,7 @@ mlx5_devx_cmd_flow_counter_query(struct mlx5_devx_obj *dcs,
  *   is set.
  */
 struct mlx5_devx_obj *
-mlx5_devx_cmd_mkey_create(struct ibv_context *ctx,
+mlx5_devx_cmd_mkey_create(void *ctx,
 			  struct mlx5_devx_mkey_attr *attr)
 {
 	struct mlx5_klm *klm_array = attr->klm_array;
@@ -279,7 +279,7 @@ mlx5_devx_cmd_destroy(struct mlx5_devx_obj *obj)
  *   0 on success, a negative value otherwise.
  */
 static int
-mlx5_devx_cmd_query_nic_vport_context(struct ibv_context *ctx,
+mlx5_devx_cmd_query_nic_vport_context(void *ctx,
 				      unsigned int vport,
 				      struct mlx5_hca_attr *attr)
 {
@@ -321,12 +321,12 @@ mlx5_devx_cmd_query_nic_vport_context(struct ibv_context *ctx,
  * Query NIC vDPA attributes.
  *
  * @param[in] ctx
- *   ibv contexts returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param[out] vdpa_attr
  *   vDPA Attributes structure to fill.
  */
 static void
-mlx5_devx_cmd_query_hca_vdpa_attr(struct ibv_context *ctx,
+mlx5_devx_cmd_query_hca_vdpa_attr(void *ctx,
 				  struct mlx5_hca_vdpa_attr *vdpa_attr)
 {
 	uint32_t in[MLX5_ST_SZ_DW(query_hca_cap_in)] = {0};
@@ -402,7 +402,7 @@ mlx5_devx_cmd_query_hca_vdpa_attr(struct ibv_context *ctx,
  * is having the required capabilities.
  *
  * @param[in] ctx
- *   ibv contexts returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param[out] attr
  *   Attributes device values.
  *
@@ -410,7 +410,7 @@ mlx5_devx_cmd_query_hca_vdpa_attr(struct ibv_context *ctx,
  *   0 on success, a negative value otherwise.
  */
 int
-mlx5_devx_cmd_query_hca_attr(struct ibv_context *ctx,
+mlx5_devx_cmd_query_hca_attr(void *ctx,
 			     struct mlx5_hca_attr *attr)
 {
 	uint32_t in[MLX5_ST_SZ_DW(query_hca_cap_in)] = {0};
@@ -570,7 +570,7 @@ mlx5_devx_cmd_query_hca_attr(struct ibv_context *ctx,
  *   0 on success, a negative value otherwise.
  */
 int
-mlx5_devx_cmd_qp_query_tis_td(struct ibv_qp *qp, uint32_t tis_num,
+mlx5_devx_cmd_qp_query_tis_td(void *qp, uint32_t tis_num,
 			      uint32_t *tis_td)
 {
 	uint32_t in[MLX5_ST_SZ_DW(query_tis_in)] = {0};
@@ -637,7 +637,7 @@ devx_cmd_fill_wq_data(void *wq_ctx, struct mlx5_devx_wq_attr *wq_attr)
  * Create RQ using DevX API.
  *
  * @param[in] ctx
- *   ibv_context returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param [in] rq_attr
  *   Pointer to create RQ attributes structure.
  * @param [in] socket
@@ -647,7 +647,7 @@ devx_cmd_fill_wq_data(void *wq_ctx, struct mlx5_devx_wq_attr *wq_attr)
  *   The DevX object created, NULL otherwise and rte_errno is set.
  */
 struct mlx5_devx_obj *
-mlx5_devx_cmd_create_rq(struct ibv_context *ctx,
+mlx5_devx_cmd_create_rq(void *ctx,
 			struct mlx5_devx_create_rq_attr *rq_attr,
 			int socket)
 {
@@ -746,7 +746,7 @@ mlx5_devx_cmd_modify_rq(struct mlx5_devx_obj *rq,
  * Create TIR using DevX API.
  *
  * @param[in] ctx
- *   ibv_context returned from mlx5dv_open_device.
+ *  Context returned from mlx5 open_device() glue function.
  * @param [in] tir_attr
  *   Pointer to TIR attributes structure.
  *
@@ -754,7 +754,7 @@ mlx5_devx_cmd_modify_rq(struct mlx5_devx_obj *rq,
  *   The DevX object created, NULL otherwise and rte_errno is set.
  */
 struct mlx5_devx_obj *
-mlx5_devx_cmd_create_tir(struct ibv_context *ctx,
+mlx5_devx_cmd_create_tir(void *ctx,
 			 struct mlx5_devx_tir_attr *tir_attr)
 {
 	uint32_t in[MLX5_ST_SZ_DW(create_tir_in)] = {0};
@@ -815,7 +815,7 @@ mlx5_devx_cmd_create_tir(struct ibv_context *ctx,
  * Create RQT using DevX API.
  *
  * @param[in] ctx
- *   ibv_context returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param [in] rqt_attr
  *   Pointer to RQT attributes structure.
  *
@@ -823,7 +823,7 @@ mlx5_devx_cmd_create_tir(struct ibv_context *ctx,
  *   The DevX object created, NULL otherwise and rte_errno is set.
  */
 struct mlx5_devx_obj *
-mlx5_devx_cmd_create_rqt(struct ibv_context *ctx,
+mlx5_devx_cmd_create_rqt(void *ctx,
 			 struct mlx5_devx_rqt_attr *rqt_attr)
 {
 	uint32_t *in = NULL;
@@ -917,7 +917,7 @@ mlx5_devx_cmd_modify_rqt(struct mlx5_devx_obj *rqt,
  * Create SQ using DevX API.
  *
  * @param[in] ctx
- *   ibv_context returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param [in] sq_attr
  *   Pointer to SQ attributes structure.
  * @param [in] socket
@@ -927,7 +927,7 @@ mlx5_devx_cmd_modify_rqt(struct mlx5_devx_obj *rqt,
  *   The DevX object created, NULL otherwise and rte_errno is set.
  **/
 struct mlx5_devx_obj *
-mlx5_devx_cmd_create_sq(struct ibv_context *ctx,
+mlx5_devx_cmd_create_sq(void *ctx,
 			struct mlx5_devx_create_sq_attr *sq_attr)
 {
 	uint32_t in[MLX5_ST_SZ_DW(create_sq_in)] = {0};
@@ -1019,7 +1019,7 @@ mlx5_devx_cmd_modify_sq(struct mlx5_devx_obj *sq,
  * Create TIS using DevX API.
  *
  * @param[in] ctx
- *   ibv_context returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param [in] tis_attr
  *   Pointer to TIS attributes structure.
  *
@@ -1027,7 +1027,7 @@ mlx5_devx_cmd_modify_sq(struct mlx5_devx_obj *sq,
  *   The DevX object created, NULL otherwise and rte_errno is set.
  */
 struct mlx5_devx_obj *
-mlx5_devx_cmd_create_tis(struct ibv_context *ctx,
+mlx5_devx_cmd_create_tis(void *ctx,
 			 struct mlx5_devx_tis_attr *tis_attr)
 {
 	uint32_t in[MLX5_ST_SZ_DW(create_tis_in)] = {0};
@@ -1066,13 +1066,12 @@ mlx5_devx_cmd_create_tis(struct ibv_context *ctx,
  * Create transport domain using DevX API.
  *
  * @param[in] ctx
- *   ibv_context returned from mlx5dv_open_device.
- *
+ *   Context returned from mlx5 open_device() glue function.
  * @return
  *   The DevX object created, NULL otherwise and rte_errno is set.
  */
 struct mlx5_devx_obj *
-mlx5_devx_cmd_create_td(struct ibv_context *ctx)
+mlx5_devx_cmd_create_td(void *ctx)
 {
 	uint32_t in[MLX5_ST_SZ_DW(alloc_transport_domain_in)] = {0};
 	uint32_t out[MLX5_ST_SZ_DW(alloc_transport_domain_out)] = {0};
@@ -1143,7 +1142,7 @@ mlx5_devx_cmd_flow_dump(void *fdb_domain __rte_unused,
  * Create CQ using DevX API.
  *
  * @param[in] ctx
- *   ibv_context returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param [in] attr
  *   Pointer to CQ attributes structure.
  *
@@ -1151,7 +1150,7 @@ mlx5_devx_cmd_flow_dump(void *fdb_domain __rte_unused,
  *   The DevX object created, NULL otherwise and rte_errno is set.
  */
 struct mlx5_devx_obj *
-mlx5_devx_cmd_create_cq(struct ibv_context *ctx, struct mlx5_devx_cq_attr *attr)
+mlx5_devx_cmd_create_cq(void *ctx, struct mlx5_devx_cq_attr *attr)
 {
 	uint32_t in[MLX5_ST_SZ_DW(create_cq_in)] = {0};
 	uint32_t out[MLX5_ST_SZ_DW(create_cq_out)] = {0};
@@ -1201,7 +1200,7 @@ mlx5_devx_cmd_create_cq(struct ibv_context *ctx, struct mlx5_devx_cq_attr *attr)
  * Create VIRTQ using DevX API.
  *
  * @param[in] ctx
- *   ibv_context returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param [in] attr
  *   Pointer to VIRTQ attributes structure.
  *
@@ -1209,7 +1208,7 @@ mlx5_devx_cmd_create_cq(struct ibv_context *ctx, struct mlx5_devx_cq_attr *attr)
  *   The DevX object created, NULL otherwise and rte_errno is set.
  */
 struct mlx5_devx_obj *
-mlx5_devx_cmd_create_virtq(struct ibv_context *ctx,
+mlx5_devx_cmd_create_virtq(void *ctx,
 			   struct mlx5_devx_virtq_attr *attr)
 {
 	uint32_t in[MLX5_ST_SZ_DW(create_virtq_in)] = {0};
@@ -1370,7 +1369,7 @@ mlx5_devx_cmd_query_virtq(struct mlx5_devx_obj *virtq_obj,
  * Create QP using DevX API.
  *
  * @param[in] ctx
- *   ibv_context returned from mlx5dv_open_device.
+ *   Context returned from mlx5 open_device() glue function.
  * @param [in] attr
  *   Pointer to QP attributes structure.
  *
@@ -1378,7 +1377,7 @@ mlx5_devx_cmd_query_virtq(struct mlx5_devx_obj *virtq_obj,
  *   The DevX object created, NULL otherwise and rte_errno is set.
  */
 struct mlx5_devx_obj *
-mlx5_devx_cmd_create_qp(struct ibv_context *ctx,
+mlx5_devx_cmd_create_qp(void *ctx,
 			struct mlx5_devx_qp_attr *attr)
 {
 	uint32_t in[MLX5_ST_SZ_DW(create_qp_in)] = {0};
diff --git a/drivers/common/mlx5/mlx5_devx_cmds.h b/drivers/common/mlx5/mlx5_devx_cmds.h
index 6dc27da..ac10687 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.h
+++ b/drivers/common/mlx5/mlx5_devx_cmds.h
@@ -11,7 +11,7 @@
 
 /* devX creation object */
 struct mlx5_devx_obj {
-	struct mlx5dv_devx_obj *obj; /* The DV object. */
+	void *obj; /* The DV object. */
 	int id; /* The object ID. */
 };
 
@@ -301,7 +301,7 @@ struct mlx5_devx_qp_attr {
 /* mlx5_devx_cmds.c */
 
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_flow_counter_alloc(struct ibv_context *ctx,
+struct mlx5_devx_obj *mlx5_devx_cmd_flow_counter_alloc(void *ctx,
 						       uint32_t bulk_sz);
 __rte_internal
 int mlx5_devx_cmd_destroy(struct mlx5_devx_obj *obj);
@@ -310,51 +310,51 @@ int mlx5_devx_cmd_flow_counter_query(struct mlx5_devx_obj *dcs,
 				     int clear, uint32_t n_counters,
 				     uint64_t *pkts, uint64_t *bytes,
 				     uint32_t mkey, void *addr,
-				     struct mlx5dv_devx_cmd_comp *cmd_comp,
+				     void *cmd_comp,
 				     uint64_t async_id);
 __rte_internal
-int mlx5_devx_cmd_query_hca_attr(struct ibv_context *ctx,
+int mlx5_devx_cmd_query_hca_attr(void *ctx,
 				 struct mlx5_hca_attr *attr);
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_mkey_create(struct ibv_context *ctx,
+struct mlx5_devx_obj *mlx5_devx_cmd_mkey_create(void *ctx,
 					      struct mlx5_devx_mkey_attr *attr);
 __rte_internal
 int mlx5_devx_get_out_command_status(void *out);
 __rte_internal
-int mlx5_devx_cmd_qp_query_tis_td(struct ibv_qp *qp, uint32_t tis_num,
+int mlx5_devx_cmd_qp_query_tis_td(void *qp, uint32_t tis_num,
 				  uint32_t *tis_td);
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_create_rq(struct ibv_context *ctx,
+struct mlx5_devx_obj *mlx5_devx_cmd_create_rq(void *ctx,
 				       struct mlx5_devx_create_rq_attr *rq_attr,
 				       int socket);
 __rte_internal
 int mlx5_devx_cmd_modify_rq(struct mlx5_devx_obj *rq,
 			    struct mlx5_devx_modify_rq_attr *rq_attr);
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_create_tir(struct ibv_context *ctx,
+struct mlx5_devx_obj *mlx5_devx_cmd_create_tir(void *ctx,
 					   struct mlx5_devx_tir_attr *tir_attr);
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_create_rqt(struct ibv_context *ctx,
+struct mlx5_devx_obj *mlx5_devx_cmd_create_rqt(void *ctx,
 					   struct mlx5_devx_rqt_attr *rqt_attr);
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_create_sq(struct ibv_context *ctx,
+struct mlx5_devx_obj *mlx5_devx_cmd_create_sq(void *ctx,
 				      struct mlx5_devx_create_sq_attr *sq_attr);
 __rte_internal
 int mlx5_devx_cmd_modify_sq(struct mlx5_devx_obj *sq,
 			    struct mlx5_devx_modify_sq_attr *sq_attr);
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_create_tis(struct ibv_context *ctx,
+struct mlx5_devx_obj *mlx5_devx_cmd_create_tis(void *ctx,
 					   struct mlx5_devx_tis_attr *tis_attr);
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_create_td(struct ibv_context *ctx);
+struct mlx5_devx_obj *mlx5_devx_cmd_create_td(void *ctx);
 __rte_internal
 int mlx5_devx_cmd_flow_dump(void *fdb_domain, void *rx_domain, void *tx_domain,
 			    FILE *file);
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_create_cq(struct ibv_context *ctx,
+struct mlx5_devx_obj *mlx5_devx_cmd_create_cq(void *ctx,
 					      struct mlx5_devx_cq_attr *attr);
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_create_virtq(struct ibv_context *ctx,
+struct mlx5_devx_obj *mlx5_devx_cmd_create_virtq(void *ctx,
 					     struct mlx5_devx_virtq_attr *attr);
 __rte_internal
 int mlx5_devx_cmd_modify_virtq(struct mlx5_devx_obj *virtq_obj,
@@ -363,7 +363,7 @@ __rte_internal
 int mlx5_devx_cmd_query_virtq(struct mlx5_devx_obj *virtq_obj,
 			      struct mlx5_devx_virtq_attr *attr);
 __rte_internal
-struct mlx5_devx_obj *mlx5_devx_cmd_create_qp(struct ibv_context *ctx,
+struct mlx5_devx_obj *mlx5_devx_cmd_create_qp(void *ctx,
 					      struct mlx5_devx_qp_attr *attr);
 __rte_internal
 int mlx5_devx_cmd_modify_qp_state(struct mlx5_devx_obj *qp,
-- 
2.8.4



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