bpf: sockmap sample add base test without any BPF for comparison

Add a base test that does not use BPF hooks to test baseline case.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

1 files changed, 21 insertions, 5 deletions

diff --git a/samples/sockmap/sockmap_user.c b/samples/sockmap/sockmap_user.c
index 661ea7e4a350..f9d3785fb183 100644
--- a/samples/sockmap/sockmap_user.c
+++ b/samples/sockmap/sockmap_user.c
@@ -298,18 +298,24 @@ static inline float recvdBps(struct msg_stats s)
         return s.bytes_recvd / (s.end.tv_sec - s.start.tv_sec);
 }
 
-static int sendmsg_test(int iov_count, int iov_buf, int cnt, int verbose)
+static int sendmsg_test(int iov_count, int iov_buf, int cnt,
+                        int verbose, bool base)
 {
-        int txpid, rxpid, err = 0;
+        float sent_Bps = 0, recvd_Bps = 0;
+        int rx_fd, txpid, rxpid, err = 0;
         struct msg_stats s = {0};
         int status;
-        float sent_Bps = 0, recvd_Bps = 0;
 
         errno = 0;
 
+        if (base)
+                rx_fd = p1;
+        else
+                rx_fd = p2;
+
         rxpid = fork();
         if (rxpid == 0) {
-                err = msg_loop(p2, iov_count, iov_buf, cnt, &s, false);
+                err = msg_loop(rx_fd, iov_count, iov_buf, cnt, &s, false);
                 if (err)
                         fprintf(stderr,
                                 "msg_loop_rx: iov_count %i iov_buf %i cnt %i err %i\n",
@@ -435,6 +441,7 @@ static int forever_ping_pong(int rate, int verbose)
 enum {
         PING_PONG,
         SENDMSG,
+        BASE,
 };
 
 int main(int argc, char **argv)
@@ -474,6 +481,8 @@ int main(int argc, char **argv)
                                 test = PING_PONG;
                         } else if (strcmp(optarg, "sendmsg") == 0) {
                                 test = SENDMSG;
+                        } else if (strcmp(optarg, "base") == 0) {
+                                test = BASE;
                         } else {
                                 usage(argv);
                                 return -1;
@@ -499,6 +508,10 @@ int main(int argc, char **argv)
         /* catch SIGINT */
         signal(SIGINT, running_handler);
 
+        /* If base test skip BPF setup */
+        if (test == BASE)
+                goto run;
+
         if (load_bpf_file(filename)) {
                 fprintf(stderr, "load_bpf_file: (%s) %s\n",
                         filename, strerror(errno));
@@ -530,6 +543,7 @@ int main(int argc, char **argv)
                 return err;
         }
 
+run:
         err = sockmap_init_sockets();
         if (err) {
                 fprintf(stderr, "ERROR: test socket failed: %d\n", err);
@@ -539,7 +553,9 @@ int main(int argc, char **argv)
         if (test == PING_PONG)
                 err = forever_ping_pong(rate, verbose);
         else if (test == SENDMSG)
-                err = sendmsg_test(iov_count, length, rate, verbose);
+                err = sendmsg_test(iov_count, length, rate, verbose, false);
+        else if (test == BASE)
+                err = sendmsg_test(iov_count, length, rate, verbose, true);
         else
                 fprintf(stderr, "unknown test\n");
 out: