diff mbox

[dpdk-dev,2/9] ipc: add support for no-shconf mode

Message ID 42c00e914542ea9d2c2a1abd39158cd55315851f.1527872626.git.anatoly.burakov@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers show

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Anatoly Burakov June 1, 2018, 5:15 p.m. UTC
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>
---

Notes:
    RFC->v1:
    - Use --no-shconf only

 lib/librte_eal/common/eal_common_proc.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
diff mbox

Patch

diff --git a/lib/librte_eal/common/eal_common_proc.c b/lib/librte_eal/common/eal_common_proc.c
index 707d8ab30..31b5394cc 100644
--- a/lib/librte_eal/common/eal_common_proc.c
+++ b/lib/librte_eal/common/eal_common_proc.c
@@ -626,6 +626,14 @@  rte_mp_channel_init(void)
 	int dir_fd;
 	pthread_t mp_handle_tid, async_reply_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));
@@ -988,6 +996,12 @@  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;
@@ -1072,6 +1086,12 @@  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;
@@ -1213,5 +1233,10 @@  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);
 }