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ipc: handle unsupported IPC in sendmsg

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Currently, IPC API will silently ignore unsupported IPC.
Fix the API call and its callers to explicitly handle
unsupported IPC cases.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
This commit is contained in:
Anatoly Burakov 2019-04-25 13:45:17 +01:00 committed by Thomas Monjalon
parent 9a4274be9e
commit 144767514e
2 changed files with 9 additions and 0 deletions
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6
lib/librte_eal/common/eal_common_proc.c
View File

@ -807,6 +807,12 @@ rte_mp_sendmsg(struct rte_mp_msg *msg)
if (check_input(msg) != 0)
return -1;
if (internal_config.no_shconf) {
RTE_LOG(DEBUG, EAL, "No shared files mode enabled, IPC is disabled\n");
rte_errno = ENOTSUP;
return -1;
}
RTE_LOG(DEBUG, EAL, "sendmsg: %s\n", msg->name);
return mp_send(msg, NULL, MP_MSG);
}

3
lib/librte_eal/common/include/rte_eal.h
View File

@ -288,6 +288,9 @@ rte_mp_action_register(const char *name, rte_mp_t action);
* not want to response the messages from the corresponding component in its
* primary process or secondary processes.
*
* @note IPC may be unsupported in certain circumstances, so caller should check
* for ENOTSUP error.
*
* @param name
* The name argument plays as the nonredundant key to find the action.
*