Upon QP creation failure provider's create_qp function sets errno with
error code and return NULL to caller.
Let's return this errno to caller to reflect the exact reason for the
error.
Signed-off-by: Yuval Shaia <yuval.shaia@xxxxxxxxxx>
---
librdmacm/cma.c | 4 +++-
librdmacm/cma.h | 8 ++++++++
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/librdmacm/cma.c b/librdmacm/cma.c
index fa370650..9920eaba 100644
--- a/librdmacm/cma.c
+++ b/librdmacm/cma.c
@@ -1367,9 +1367,11 @@ int rdma_create_qp_ex(struct rdma_cm_id *id,
attr->recv_cq = id->recv_cq;
if (id->srq && !attr->srq)
attr->srq = id->srq;
+
+ errno = 0;
qp = ibv_create_qp_ex(id->verbs, attr);
if (!qp) {
- ret = ERR(ENOMEM);
+ ret = CHK_ERRNO("ibv_create_qp_ex");
goto err1;
}
diff --git a/librdmacm/cma.h b/librdmacm/cma.h
index 62821055..c2dc4865 100644
--- a/librdmacm/cma.h
+++ b/librdmacm/cma.h
@@ -41,6 +41,7 @@
#include <endian.h>
#include <semaphore.h>
#include <stdatomic.h>
+#include <stdio.h>
#include <rdma/rdma_cma.h>
#include <infiniband/ib.h>
@@ -92,6 +93,13 @@ static inline int ERR(int err)
return -1;
}
+static inline int CHK_ERRNO(const char *funcname)
+{
+ if (!errno)
+ fprintf(stderr, "Function %s did not set errno\n", funcname);
+ return -1;
+}
+
int ucma_init(void);
extern int af_ib_support;
--
2.14.3
--
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