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ipc: support --no-shconf mode

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IPC is an inter-process communication mechanism. Since no secondaries
can ever be expected to run in no-shconf mode, IPC will be useless, so
do not enable it in the first place. In the interests of API usage
convenience, we will still allow registering callbacks, but obviously
they won't ever be triggered.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
This commit is contained in:
Anatoly Burakov 2018-07-13 13:47:58 +01:00 committed by Thomas Monjalon
parent 3ee2cde248
commit 5848e3d281
1 changed files with 25 additions and 0 deletions
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25
lib/librte_eal/common/eal_common_proc.c
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@ -572,6 +572,14 @@ rte_mp_channel_init(void)
int dir_fd;
pthread_t mp_handle_tid;
/* in no shared files mode, we do not have secondary processes support,
* so no need to initialize IPC.
*/
if (internal_config.no_shconf) {
RTE_LOG(DEBUG, EAL, "No shared files mode enabled, IPC will be disabled\n");
return 0;
}
/* create filter path */
create_socket_path("*", path, sizeof(path));
strlcpy(mp_filter, basename(path), sizeof(mp_filter));
@ -930,6 +938,12 @@ rte_mp_request_sync(struct rte_mp_msg *req, struct rte_mp_reply *reply,
if (check_input(req) == false)
return -1;
if (internal_config.no_shconf) {
RTE_LOG(DEBUG, EAL, "No shared files mode enabled, IPC is disabled\n");
return 0;
}
if (gettimeofday(&now, NULL) < 0) {
RTE_LOG(ERR, EAL, "Faile to get current time\n");
rte_errno = errno;
@ -1014,6 +1028,12 @@ rte_mp_request_async(struct rte_mp_msg *req, const struct timespec *ts,
if (check_input(req) == false)
return -1;
if (internal_config.no_shconf) {
RTE_LOG(DEBUG, EAL, "No shared files mode enabled, IPC is disabled\n");
return 0;
}
if (gettimeofday(&now, NULL) < 0) {
RTE_LOG(ERR, EAL, "Faile to get current time\n");
rte_errno = errno;
@ -1152,5 +1172,10 @@ rte_mp_reply(struct rte_mp_msg *msg, const char *peer)
return -1;
}
if (internal_config.no_shconf) {
RTE_LOG(DEBUG, EAL, "No shared files mode enabled, IPC is disabled\n");
return 0;
}
return mp_send(msg, peer, MP_REP);
}