This patch adds code to allow user applications to register and
unregister memory buffers with the HCA. Following functions are
now supported:
- ibv_reg_mr()
- ibv_dereg_mr()
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@xxxxxxxxxxxx>
Signed-off-by: Somnath Kotur <somnath.kotur@xxxxxxxxxxxx>
Signed-off-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
Signed-off-by: Devesh Sharma <devesh.sharma@xxxxxxxxxxxx>
---
providers/bnxtre/abi.h | 4 ++++
providers/bnxtre/verbs.c | 26 ++++++++++++++++++++++++--
2 files changed, 28 insertions(+), 2 deletions(-)
diff --git a/providers/bnxtre/abi.h b/providers/bnxtre/abi.h
index 653ac71..0568d67 100644
--- a/providers/bnxtre/abi.h
+++ b/providers/bnxtre/abi.h
@@ -56,4 +56,8 @@ struct bnxt_re_pd_resp {
__u64 dbr;
};
+struct bnxt_re_mr_resp {
+ struct ibv_reg_mr_resp resp;
+};
+
#endif
diff --git a/providers/bnxtre/verbs.c b/providers/bnxtre/verbs.c
index ab1a453..9813db8 100644
--- a/providers/bnxtre/verbs.c
+++ b/providers/bnxtre/verbs.c
@@ -134,12 +134,34 @@ int bnxt_re_free_pd(struct ibv_pd *ibvpd)
struct ibv_mr *bnxt_re_reg_mr(struct ibv_pd *ibvpd, void *sva, size_t len,
int access)
{
- return NULL;
+ struct bnxt_re_mr *mr;
+ struct ibv_reg_mr cmd;
+ struct bnxt_re_mr_resp resp;
+
+ mr = calloc(1, sizeof(*mr));
+ if (!mr)
+ return NULL;
+
+ if (ibv_cmd_reg_mr(ibvpd, sva, len, (uint64_t)sva, access, &mr->ibvmr,
+ &cmd, sizeof(cmd), &resp.resp, sizeof(resp))) {
+ free(mr);
+ return NULL;
+ }
+
+ return &mr->ibvmr;
}
int bnxt_re_dereg_mr(struct ibv_mr *ibvmr)
{
- return -ENOSYS;
+ struct bnxt_re_mr *mr = (struct bnxt_re_mr *)ibvmr;
+ int status;
+
+ status = ibv_cmd_dereg_mr(ibvmr);
+ if (status)
+ return status;
+ free(mr);
+
+ return 0;
}
struct ibv_cq *bnxt_re_create_cq(struct ibv_context *ibvctx, int ncqe,
--
1.8.3.1
--
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