selftests: add GRO support to udp bench rx program

And fix a couple of buglets (port option processing,
clean termination on SIGINT). This is preparatory work
for GRO tests.

rfc v2 -> rfc v3:
 - use ETH_MAX_MTU

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paolo Abeni 2018-11-07 12:38:34 +01:00 committed by David S. Miller
parent cf329aa42b
commit 0a9ac2e954
1 changed files with 30 additions and 7 deletions

View File

@ -31,9 +31,15 @@
#include <sys/wait.h>
#include <unistd.h>
#ifndef UDP_GRO
#define UDP_GRO 104
#endif
static int cfg_port = 8000;
static bool cfg_tcp;
static bool cfg_verify;
static bool cfg_read_all;
static bool cfg_gro_segment;
static bool interrupted;
static unsigned long packets, bytes;
@ -63,6 +69,8 @@ static void do_poll(int fd)
do {
ret = poll(&pfd, 1, 10);
if (interrupted)
break;
if (ret == -1)
error(1, errno, "poll");
if (ret == 0)
@ -70,7 +78,7 @@ static void do_poll(int fd)
if (pfd.revents != POLLIN)
error(1, errno, "poll: 0x%x expected 0x%x\n",
pfd.revents, POLLIN);
} while (!ret && !interrupted);
} while (!ret);
}
static int do_socket(bool do_tcp)
@ -102,6 +110,8 @@ static int do_socket(bool do_tcp)
error(1, errno, "listen");
do_poll(accept_fd);
if (interrupted)
exit(0);
fd = accept(accept_fd, NULL, NULL);
if (fd == -1)
@ -167,10 +177,10 @@ static void do_verify_udp(const char *data, int len)
/* Flush all outstanding datagrams. Verify first few bytes of each. */
static void do_flush_udp(int fd)
{
static char rbuf[ETH_DATA_LEN];
static char rbuf[ETH_MAX_MTU];
int ret, len, budget = 256;
len = cfg_verify ? sizeof(rbuf) : 0;
len = cfg_read_all ? sizeof(rbuf) : 0;
while (budget--) {
/* MSG_TRUNC will make return value full datagram length */
ret = recv(fd, rbuf, len, MSG_TRUNC | MSG_DONTWAIT);
@ -178,7 +188,7 @@ static void do_flush_udp(int fd)
return;
if (ret == -1)
error(1, errno, "recv");
if (len) {
if (len && cfg_verify) {
if (ret == 0)
error(1, errno, "recv: 0 byte datagram\n");
@ -192,23 +202,30 @@ static void do_flush_udp(int fd)
static void usage(const char *filepath)
{
error(1, 0, "Usage: %s [-tv] [-p port]", filepath);
error(1, 0, "Usage: %s [-Grtv] [-p port]", filepath);
}
static void parse_opts(int argc, char **argv)
{
int c;
while ((c = getopt(argc, argv, "ptv")) != -1) {
while ((c = getopt(argc, argv, "Gp:rtv")) != -1) {
switch (c) {
case 'G':
cfg_gro_segment = true;
break;
case 'p':
cfg_port = htons(strtoul(optarg, NULL, 0));
cfg_port = strtoul(optarg, NULL, 0);
break;
case 'r':
cfg_read_all = true;
break;
case 't':
cfg_tcp = true;
break;
case 'v':
cfg_verify = true;
cfg_read_all = true;
break;
}
}
@ -227,6 +244,12 @@ static void do_recv(void)
fd = do_socket(cfg_tcp);
if (cfg_gro_segment && !cfg_tcp) {
int val = 1;
if (setsockopt(fd, IPPROTO_UDP, UDP_GRO, &val, sizeof(val)))
error(1, errno, "setsockopt UDP_GRO");
}
treport = gettimeofday_ms() + 1000;
do {
do_poll(fd);