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Diffstat (limited to 'tools/testing/selftests/bpf/test_sockmap.c')
-rw-r--r--tools/testing/selftests/bpf/test_sockmap.c127
1 files changed, 123 insertions, 4 deletions
diff --git a/tools/testing/selftests/bpf/test_sockmap.c b/tools/testing/selftests/bpf/test_sockmap.c
index 622ade0a0957..e85a771f607b 100644
--- a/tools/testing/selftests/bpf/test_sockmap.c
+++ b/tools/testing/selftests/bpf/test_sockmap.c
@@ -79,6 +79,8 @@ int txmsg_start;
int txmsg_end;
int txmsg_start_push;
int txmsg_end_push;
+int txmsg_start_pop;
+int txmsg_pop;
int txmsg_ingress;
int txmsg_skb;
int ktls;
@@ -104,6 +106,8 @@ static const struct option long_options[] = {
{"txmsg_end", required_argument, NULL, 'e'},
{"txmsg_start_push", required_argument, NULL, 'p'},
{"txmsg_end_push", required_argument, NULL, 'q'},
+ {"txmsg_start_pop", required_argument, NULL, 'w'},
+ {"txmsg_pop", required_argument, NULL, 'x'},
{"txmsg_ingress", no_argument, &txmsg_ingress, 1 },
{"txmsg_skb", no_argument, &txmsg_skb, 1 },
{"ktls", no_argument, &ktls, 1 },
@@ -473,13 +477,27 @@ static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
clock_gettime(CLOCK_MONOTONIC, &s->end);
} else {
int slct, recvp = 0, recv, max_fd = fd;
+ float total_bytes, txmsg_pop_total;
int fd_flags = O_NONBLOCK;
struct timeval timeout;
- float total_bytes;
fd_set w;
fcntl(fd, fd_flags);
+ /* Account for pop bytes noting each iteration of apply will
+ * call msg_pop_data helper so we need to account for this
+ * by calculating the number of apply iterations. Note user
+ * of the tool can create cases where no data is sent by
+ * manipulating pop/push/pull/etc. For example txmsg_apply 1
+ * with txmsg_pop 1 will try to apply 1B at a time but each
+ * iteration will then pop 1B so no data will ever be sent.
+ * This is really only useful for testing edge cases in code
+ * paths.
+ */
total_bytes = (float)iov_count * (float)iov_length * (float)cnt;
+ txmsg_pop_total = txmsg_pop;
+ if (txmsg_apply)
+ txmsg_pop_total *= (total_bytes / txmsg_apply);
+ total_bytes -= txmsg_pop_total;
err = clock_gettime(CLOCK_MONOTONIC, &s->start);
if (err < 0)
perror("recv start time: ");
@@ -488,7 +506,7 @@ static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
timeout.tv_sec = 0;
timeout.tv_usec = 300000;
} else {
- timeout.tv_sec = 1;
+ timeout.tv_sec = 3;
timeout.tv_usec = 0;
}
@@ -503,7 +521,7 @@ static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
goto out_errno;
} else if (!slct) {
if (opt->verbose)
- fprintf(stderr, "unexpected timeout\n");
+ fprintf(stderr, "unexpected timeout: recved %zu/%f pop_total %f\n", s->bytes_recvd, total_bytes, txmsg_pop_total);
errno = -EIO;
clock_gettime(CLOCK_MONOTONIC, &s->end);
goto out_errno;
@@ -619,7 +637,7 @@ static int sendmsg_test(struct sockmap_options *opt)
iov_count = 1;
err = msg_loop(rx_fd, iov_count, iov_buf,
cnt, &s, false, opt);
- if (err && opt->verbose)
+ if (opt->verbose)
fprintf(stderr,
"msg_loop_rx: iov_count %i iov_buf %i cnt %i err %i\n",
iov_count, iov_buf, cnt, err);
@@ -931,6 +949,39 @@ run:
}
}
+ if (txmsg_start_pop) {
+ i = 4;
+ err = bpf_map_update_elem(map_fd[5],
+ &i, &txmsg_start_pop, BPF_ANY);
+ if (err) {
+ fprintf(stderr,
+ "ERROR: bpf_map_update_elem %i@%i (txmsg_start_pop): %d (%s)\n",
+ txmsg_start_pop, i, err, strerror(errno));
+ goto out;
+ }
+ } else {
+ i = 4;
+ bpf_map_update_elem(map_fd[5],
+ &i, &txmsg_start_pop, BPF_ANY);
+ }
+
+ if (txmsg_pop) {
+ i = 5;
+ err = bpf_map_update_elem(map_fd[5],
+ &i, &txmsg_pop, BPF_ANY);
+ if (err) {
+ fprintf(stderr,
+ "ERROR: bpf_map_update_elem %i@%i (txmsg_pop): %d (%s)\n",
+ txmsg_pop, i, err, strerror(errno));
+ goto out;
+ }
+ } else {
+ i = 5;
+ bpf_map_update_elem(map_fd[5],
+ &i, &txmsg_pop, BPF_ANY);
+
+ }
+
if (txmsg_ingress) {
int in = BPF_F_INGRESS;
@@ -1082,6 +1133,11 @@ static void test_options(char *options)
snprintf(tstr, OPTSTRING, "end %d,", txmsg_end);
strncat(options, tstr, OPTSTRING);
}
+ if (txmsg_start_pop) {
+ snprintf(tstr, OPTSTRING, "pop (%d,%d),",
+ txmsg_start_pop, txmsg_start_pop + txmsg_pop);
+ strncat(options, tstr, OPTSTRING);
+ }
if (txmsg_ingress)
strncat(options, "ingress,", OPTSTRING);
if (txmsg_skb)
@@ -1264,6 +1320,7 @@ static int test_mixed(int cgrp)
txmsg_apply = txmsg_cork = 0;
txmsg_start = txmsg_end = 0;
txmsg_start_push = txmsg_end_push = 0;
+ txmsg_start_pop = txmsg_pop = 0;
/* Test small and large iov_count values with pass/redir/apply/cork */
txmsg_pass = 1;
@@ -1383,6 +1440,19 @@ static int test_start_end(int cgrp)
txmsg_end = 2;
txmsg_start_push = 1;
txmsg_end_push = 2;
+ txmsg_start_pop = 1;
+ txmsg_pop = 1;
+ err = test_txmsg(cgrp);
+ if (err)
+ goto out;
+
+ /* Cut a byte of pushed data but leave reamining in place */
+ txmsg_start = 1;
+ txmsg_end = 2;
+ txmsg_start_push = 1;
+ txmsg_end_push = 3;
+ txmsg_start_pop = 1;
+ txmsg_pop = 1;
err = test_txmsg(cgrp);
if (err)
goto out;
@@ -1393,6 +1463,9 @@ static int test_start_end(int cgrp)
opt.iov_length = 100;
txmsg_cork = 1600;
+ txmsg_start_pop = 0;
+ txmsg_pop = 0;
+
for (i = 99; i <= 1600; i += 500) {
txmsg_start = 0;
txmsg_end = i;
@@ -1403,6 +1476,17 @@ static int test_start_end(int cgrp)
goto out;
}
+ /* Test pop data in middle of cork */
+ for (i = 99; i <= 1600; i += 500) {
+ txmsg_start_pop = 10;
+ txmsg_pop = i;
+ err = test_exec(cgrp, &opt);
+ if (err)
+ goto out;
+ }
+ txmsg_start_pop = 0;
+ txmsg_pop = 0;
+
/* Test start/end with cork but pull data in middle */
for (i = 199; i <= 1600; i += 500) {
txmsg_start = 100;
@@ -1423,6 +1507,15 @@ static int test_start_end(int cgrp)
if (err)
goto out;
+ /* Test pop with cork pulling last sg entry */
+ txmsg_start_pop = 1500;
+ txmsg_pop = 1600;
+ err = test_exec(cgrp, &opt);
+ if (err)
+ goto out;
+ txmsg_start_pop = 0;
+ txmsg_pop = 0;
+
/* Test start/end pull of single byte in last page */
txmsg_start = 1111;
txmsg_end = 1112;
@@ -1432,6 +1525,13 @@ static int test_start_end(int cgrp)
if (err)
goto out;
+ /* Test pop of single byte in last page */
+ txmsg_start_pop = 1111;
+ txmsg_pop = 1112;
+ err = test_exec(cgrp, &opt);
+ if (err)
+ goto out;
+
/* Test start/end with end < start */
txmsg_start = 1111;
txmsg_end = 0;
@@ -1456,7 +1556,20 @@ static int test_start_end(int cgrp)
txmsg_start_push = 1601;
txmsg_end_push = 1600;
err = test_exec(cgrp, &opt);
+ if (err)
+ goto out;
+
+ /* Test pop with start > data */
+ txmsg_start_pop = 1601;
+ txmsg_pop = 1;
+ err = test_exec(cgrp, &opt);
+ if (err)
+ goto out;
+ /* Test pop with pop range > data */
+ txmsg_start_pop = 1599;
+ txmsg_pop = 10;
+ err = test_exec(cgrp, &opt);
out:
txmsg_start = 0;
txmsg_end = 0;
@@ -1641,6 +1754,12 @@ int main(int argc, char **argv)
case 'q':
txmsg_end_push = atoi(optarg);
break;
+ case 'w':
+ txmsg_start_pop = atoi(optarg);
+ break;
+ case 'x':
+ txmsg_pop = atoi(optarg);
+ break;
case 'a':
txmsg_apply = atoi(optarg);
break;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 14:38:09 +0000