Testpmd must not assume that the secondary process
is testpmd. The notification needs to be done by EAL.

This reverts commit f96273c8e9d39e472bb07acc05e493b1e712e51b.

Bugzilla ID: 1942
Cc: [email protected]

Signed-off-by: Stephen Hemminger <[email protected]>
---
 app/test-pmd/testpmd.c | 103 ++---------------------------------------
 1 file changed, 4 insertions(+), 99 deletions(-)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index e2569d9e30..e54a3981e9 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -3716,83 +3716,6 @@ detach_devargs(char *identifier)
        rte_devargs_reset(&da);
 }
 
-#ifndef RTE_EXEC_ENV_WINDOWS
-
-enum testpmd_req_type {
-       TESTPMD_REQ_TYPE_EXIT,
-};
-
-struct testpmd_mp_req {
-       enum testpmd_req_type t;
-};
-
-struct testpmd_mp_resp {
-       int result;
-};
-
-#define TESTPMD_MP     "mp_testpmd"
-
-/* Send reply to this peer when testpmd exits */
-static RTE_ATOMIC(const char *) primary_name;
-
-static void
-reply_to_primary(const char *peer, int result)
-{
-       struct rte_mp_msg reply = { };
-       struct testpmd_mp_resp *resp = (struct testpmd_mp_resp *) &reply.param;
-
-       strlcpy(reply.name, TESTPMD_MP, RTE_MP_MAX_NAME_LEN);
-       reply.len_param = sizeof(*resp);
-       resp->result = result;
-
-       printf("Replying %d to primary\n", result);
-       fflush(stdout);
-
-       if (rte_mp_reply(&reply, peer) < 0)
-               printf("Failed to send response to primary:%s", 
strerror(rte_errno));
-}
-
-/* Primary process is exiting, stop secondary process */
-static void
-pmd_notify_secondary(void)
-{
-       struct testpmd_mp_req request = {
-               .t = TESTPMD_REQ_TYPE_EXIT,
-       };
-       struct rte_mp_msg mp_req = {
-               .name = TESTPMD_MP,
-               .len_param = sizeof(request),
-       };
-       struct rte_mp_reply reply;
-       struct timespec ts = {.tv_sec = 5, .tv_nsec = 0};
-
-       printf("\nPrimary: Sending 'stop_req' request to secondary...\n");
-       fflush(stdout);
-
-       memcpy(mp_req.param, &request, sizeof(request));
-       rte_mp_request_sync(&mp_req, &reply, &ts);
-}
-
-static int
-handle_testpmd_request(const struct rte_mp_msg *request, const void *peer)
-{
-       const struct testpmd_mp_req *req = (const struct testpmd_mp_req 
*)request->param;
-
-       if (req->t == TESTPMD_REQ_TYPE_EXIT) {
-               printf("\nReceived notification of primary exiting\n");
-               fflush(stdout);
-
-               /* Response is sent after forwarding loop exits */
-               rte_atomic_store_explicit(&primary_name, peer, 
rte_memory_order_relaxed);
-
-               kill(getpid(), SIGINT);
-       } else {
-               reply_to_primary(peer, -EINVAL);
-       }
-       return 0;
-}
-#endif
-
 void
 pmd_test_exit(void)
 {
@@ -3804,10 +3727,6 @@ pmd_test_exit(void)
                stop_packet_forwarding();
 
 #ifndef RTE_EXEC_ENV_WINDOWS
-       /* Tell secondary to exit */
-       if (rte_eal_process_type() == RTE_PROC_PRIMARY)
-               pmd_notify_secondary();
-
        for (i = 0 ; i < RTE_DIM(mempools) ; i++) {
                if (mempools[i]) {
                        if (mp_alloc_type == MP_ALLOC_ANON)
@@ -4623,12 +4542,9 @@ main(int argc, char** argv)
                         rte_strerror(rte_errno));
 
 #ifndef RTE_EXEC_ENV_WINDOWS
-       if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
-               if (enable_primary_monitor() < 0)
-                       rte_exit(EXIT_FAILURE, "Cannot setup primary monitor");
-               if (rte_mp_action_register(TESTPMD_MP, handle_testpmd_request) 
< 0)
-                       rte_exit(EXIT_FAILURE, "Failed to register message 
action\n");
-       }
+       if (rte_eal_process_type() == RTE_PROC_SECONDARY &&
+           enable_primary_monitor() < 0)
+               rte_exit(EXIT_FAILURE, "Cannot setup primary monitor");
 #endif
 
        /* allocate port structures, and init them */
@@ -4830,23 +4746,12 @@ main(int argc, char** argv)
        }
 
 #ifndef RTE_EXEC_ENV_WINDOWS
-       if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+       if (rte_eal_process_type() == RTE_PROC_SECONDARY)
                disable_primary_monitor();
-               rte_mp_action_unregister(TESTPMD_MP);
-       }
 #endif
 
        pmd_test_exit();
 
-#ifndef RTE_EXEC_ENV_WINDOWS
-       if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
-               const char *peer = rte_atomic_exchange_explicit(&primary_name, 
NULL,
-                               rte_memory_order_relaxed);
-               if (peer)
-                       reply_to_primary(peer, 0);
-       }
-#endif
-
 #ifdef RTE_LIB_PDUMP
        /* uninitialize packet capture framework */
        rte_pdump_uninit();
-- 
2.53.0

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