[PATCH rdma-core 4/6] ocrdma: Move ocrdma to exclusively use the kernel uapi headers

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From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>

Using the driver support macros we can now directly create the
required driver structs automatically.

Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
---
 kernel-headers/CMakeLists.txt   |   1 +
 providers/ocrdma/ocrdma_abi.h   | 130 +++++-----------------------------------
 providers/ocrdma/ocrdma_main.c  |   2 +-
 providers/ocrdma/ocrdma_verbs.c |  18 +++---
 4 files changed, 25 insertions(+), 126 deletions(-)

diff --git a/kernel-headers/CMakeLists.txt b/kernel-headers/CMakeLists.txt
index 1c4662007a02a3..e59ffd9e0c29db 100644
--- a/kernel-headers/CMakeLists.txt
+++ b/kernel-headers/CMakeLists.txt
@@ -64,6 +64,7 @@ rdma_kernel_provider_abi(
   rdma/mlx5-abi.h
   rdma/mthca-abi.h
   rdma/nes-abi.h
+  rdma/ocrdma-abi.h
   rdma/qedr-abi.h
   rdma/rdma_user_rxe.h
   rdma/vmw_pvrdma-abi.h
diff --git a/providers/ocrdma/ocrdma_abi.h b/providers/ocrdma/ocrdma_abi.h
index b5ac0991abb331..6956a4f112e24c 100644
--- a/providers/ocrdma/ocrdma_abi.h
+++ b/providers/ocrdma/ocrdma_abi.h
@@ -38,9 +38,23 @@
 #include <stdint.h>
 #include <infiniband/kern-abi.h>
 #include <rdma/ocrdma-abi.h>
+#include <kernel-abi/ocrdma-abi.h>
 
 #define OCRDMA_ABI_VERSION	2
 
+DECLARE_DRV_CMD(uocrdma_get_context, IB_USER_VERBS_CMD_GET_CONTEXT,
+		empty, ocrdma_alloc_ucontext_resp);
+DECLARE_DRV_CMD(uocrdma_alloc_pd, IB_USER_VERBS_CMD_ALLOC_PD,
+		ocrdma_alloc_pd_ureq, ocrdma_alloc_pd_uresp);
+DECLARE_DRV_CMD(uocrdma_create_cq, IB_USER_VERBS_CMD_CREATE_CQ,
+		ocrdma_create_cq_ureq, ocrdma_create_cq_uresp);
+DECLARE_DRV_CMD(uocrdma_reg_mr, IB_USER_VERBS_CMD_REG_MR,
+		empty, empty);
+DECLARE_DRV_CMD(uocrdma_create_qp, IB_USER_VERBS_CMD_CREATE_QP,
+		ocrdma_create_qp_ureq, ocrdma_create_qp_uresp);
+DECLARE_DRV_CMD(uocrdma_create_srq, IB_USER_VERBS_CMD_CREATE_SRQ,
+		empty, ocrdma_create_srq_uresp);
+
 #define Bit(_b) (1 << (_b))
 
 #define OCRDMA_MAX_QP    2048
@@ -62,122 +76,6 @@ enum {
 /* solicited bit */
 #define OCRDMA_DB_CQ_SOLICIT_SHIFT		(31)	/* bit 31 */
 
-struct uocrdma_get_context {
-	struct ibv_get_context cmd;
-};
-
-struct uocrdma_alloc_ucontext_resp {
-	struct ib_uverbs_get_context_resp ibv_resp;
-	uint32_t dev_id;
-	uint32_t wqe_size;
-	uint32_t max_inline_data;
-	uint32_t dpp_wqe_size;
-	uint64_t ah_tbl_page;
-	uint32_t ah_tbl_len;
-	uint32_t rqe_size;
-	uint8_t fw_ver[32];
-	uint64_t rsvd1;
-	uint64_t rsvd2;
-};
-
-struct uocrdma_alloc_pd_req {
-	struct ibv_alloc_pd cmd;
-	uint64_t rsvd;
-};
-
-struct uocrdma_alloc_pd_resp {
-	struct ib_uverbs_alloc_pd_resp ibv_resp;
-	uint32_t id;
-	uint32_t dpp_enabled;
-	uint32_t dpp_page_addr_hi;
-	uint32_t dpp_page_addr_lo;
-	uint64_t rsvd;
-};
-
-struct uocrdma_create_cq_req {
-	struct ibv_create_cq ibv_cmd;
-	uint32_t dpp_cq;
-	uint32_t rsvd;
-};
-
-struct uocrdma_create_cq_resp {
-	struct ib_uverbs_create_cq_resp ibv_resp;
-	uint32_t cq_id;
-	uint32_t size;
-	uint32_t num_pages;
-	uint32_t max_hw_cqe;
-	uint64_t page_addr[MAX_CQ_PAGES];
-	uint64_t db_page_addr;
-	uint32_t db_page_size;
-	uint32_t phase_change;
-	uint64_t rsvd1;
-	uint64_t rsvd2;
-};
-
-struct uocrdma_reg_mr {
-	struct ibv_reg_mr ibv_cmd;
-};
-
-struct uocrdma_reg_mr_resp {
-	struct ib_uverbs_reg_mr_resp ibv_resp;
-};
-
-struct uocrdma_create_qp_cmd {
-	struct ibv_create_qp ibv_cmd;
-	uint8_t enable_dpp_cq;
-	uint8_t rsvd;
-	uint16_t dpp_cq_id;
-	uint32_t rsvd1;		/* pad */
-};
-
-struct uocrdma_create_qp_uresp {
-	struct ib_uverbs_create_qp_resp ibv_resp;
-	uint16_t qp_id;
-	uint16_t sq_dbid;
-	uint16_t rq_dbid;
-	uint16_t resv0;		/* pad */
-	uint32_t sq_page_size;
-	uint32_t rq_page_size;
-	uint32_t num_sq_pages;
-	uint32_t num_rq_pages;
-	uint64_t sq_page_addr[MAX_QP_PAGES];
-	uint64_t rq_page_addr[MAX_QP_PAGES];
-	uint64_t db_page_addr;
-	uint32_t db_page_size;
-	uint32_t dpp_credit;
-	uint32_t dpp_offset;
-	uint32_t num_wqe_allocated;
-	uint32_t num_rqe_allocated;
-	uint32_t db_sq_offset;
-	uint32_t db_rq_offset;
-	uint32_t db_shift;
-	uint64_t rsvd[11]; /* 8*8 + 4*4 + 8 */
-};
-
-struct uocrdma_create_srq_cmd {
-	struct ibv_create_srq ibv_cmd;
-};
-
-struct uocrdma_create_srq_resp {
-	struct ib_uverbs_create_srq_resp ibv_resp;
-	uint16_t rq_dbid;
-	uint16_t resv0;
-	uint32_t resv1;
-
-	uint32_t rq_page_size;
-	uint32_t num_rq_pages;
-
-	uint64_t rq_page_addr[MAX_QP_PAGES];
-	uint64_t db_page_addr;
-
-	uint32_t db_page_size;
-	uint32_t num_rqe_allocated;
-	uint32_t db_rq_offset;
-	uint32_t db_shift;
-	uint64_t rsvd2;
-	uint64_t rsvd3;
-};
-
 enum OCRDMA_CQE_STATUS {
 	OCRDMA_CQE_SUCCESS 		= 0,
 	OCRDMA_CQE_LOC_LEN_ERR 		= 1,
diff --git a/providers/ocrdma/ocrdma_main.c b/providers/ocrdma/ocrdma_main.c
index ee67f4d07d5139..c3df474f06e60c 100644
--- a/providers/ocrdma/ocrdma_main.c
+++ b/providers/ocrdma/ocrdma_main.c
@@ -110,7 +110,7 @@ static struct verbs_context *ocrdma_alloc_context(struct ibv_device *ibdev,
 {
 	struct ocrdma_devctx *ctx;
 	struct uocrdma_get_context cmd;
-	struct uocrdma_alloc_ucontext_resp resp;
+	struct uocrdma_get_context_resp resp;
 
 	ctx = verbs_init_and_alloc_context(ibdev, cmd_fd, ctx, ibv_ctx,
 					   RDMA_DRIVER_OCRDMA);
diff --git a/providers/ocrdma/ocrdma_verbs.c b/providers/ocrdma/ocrdma_verbs.c
index 223ad9c690fd0a..b9fa7d68dcc3cb 100644
--- a/providers/ocrdma/ocrdma_verbs.c
+++ b/providers/ocrdma/ocrdma_verbs.c
@@ -133,7 +133,7 @@ static void ocrdma_free_ah_tbl_id(struct ocrdma_devctx *ctx, int idx)
  */
 struct ibv_pd *ocrdma_alloc_pd(struct ibv_context *context)
 {
-	struct uocrdma_alloc_pd_req cmd;
+	struct uocrdma_alloc_pd cmd;
 	struct uocrdma_alloc_pd_resp resp;
 	struct ocrdma_pd *pd;
 	uint64_t map_address = 0;
@@ -144,8 +144,8 @@ struct ibv_pd *ocrdma_alloc_pd(struct ibv_context *context)
 	bzero(pd, sizeof *pd);
 	memset(&cmd, 0, sizeof(cmd));
 
-	if (ibv_cmd_alloc_pd(context, &pd->ibv_pd, &cmd.cmd, sizeof cmd,
-			     &resp.ibv_resp, sizeof resp)) {
+	if (ibv_cmd_alloc_pd(context, &pd->ibv_pd, &cmd.ibv_cmd, sizeof(cmd),
+			     &resp.ibv_resp, sizeof(resp))) {
 		free(pd);
 		return NULL;
 	}
@@ -230,7 +230,7 @@ static struct ibv_cq *ocrdma_create_cq_common(struct ibv_context *context,
 					      int comp_vector, int dpp_cq)
 {
 	int status;
-	struct uocrdma_create_cq_req cmd;
+	struct uocrdma_create_cq cmd;
 	struct uocrdma_create_cq_resp resp;
 	struct ocrdma_cq *cq;
 	struct ocrdma_device *dev = get_ocrdma_dev(context->device);
@@ -252,10 +252,10 @@ static struct ibv_cq *ocrdma_create_cq_common(struct ibv_context *context,
 	cq->dev = dev;
 	cq->cq_id = resp.cq_id;
 	cq->cq_dbid = resp.cq_id;
-	cq->cq_mem_size = resp.size;
+	cq->cq_mem_size = resp.page_size;
 	cq->max_hw_cqe = resp.max_hw_cqe;
 	cq->phase_change = resp.phase_change;
-	cq->va = mmap(NULL, resp.size, PROT_READ | PROT_WRITE,
+	cq->va = mmap(NULL, resp.page_size, PROT_READ | PROT_WRITE,
 		      MAP_SHARED, context->cmd_fd, resp.page_addr[0]);
 	if (cq->va == MAP_FAILED)
 		goto cq_err2;
@@ -354,7 +354,7 @@ struct ibv_srq *ocrdma_create_srq(struct ibv_pd *pd,
 {
 	int status = 0;
 	struct ocrdma_srq *srq;
-	struct uocrdma_create_srq_cmd cmd;
+	struct uocrdma_create_srq cmd;
 	struct uocrdma_create_srq_resp resp;
 	void *map_addr;
 
@@ -464,8 +464,8 @@ struct ibv_qp *ocrdma_create_qp(struct ibv_pd *pd,
 				struct ibv_qp_init_attr *attrs)
 {
 	int status = 0;
-	struct uocrdma_create_qp_cmd cmd;
-	struct uocrdma_create_qp_uresp resp;
+	struct uocrdma_create_qp cmd;
+	struct uocrdma_create_qp_resp resp;
 	struct ocrdma_qp *qp;
 	void *map_addr;
 #ifdef DPP_CQ_SUPPORT
-- 
2.16.2

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