[19.08,6/6] ipc: handle unsupported ipc in async request
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Commit Message
Currently, IPC API will silently ignore unsupported IPC.
Fix the API call to explicitly handle unsupported IPC cases.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
lib/librte_eal/common/eal_common_proc.c | 3 ++-
lib/librte_eal/common/include/rte_eal.h | 3 +++
2 files changed, 5 insertions(+), 1 deletion(-)
@@ -1041,7 +1041,8 @@ rte_mp_request_async(struct rte_mp_msg *req, const struct timespec *ts,
if (internal_config.no_shconf) {
RTE_LOG(DEBUG, EAL, "No shared files mode enabled, IPC is disabled\n");
- return 0;
+ rte_errno = ENOTSUP;
+ return -1;
}
if (gettimeofday(&now, NULL) < 0) {
@@ -344,6 +344,9 @@ rte_mp_request_sync(struct rte_mp_msg *req, struct rte_mp_reply *reply,
* This function sends a request message to the peer process, and will not
* block. Instead, reply will be received in a separate callback.
*
+ * @note IPC may be unsupported in certain circumstances, so caller should check
+ * for ENOTSUP error.
+ *
* @param req
* The req argument contains the customized request message.
*