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selftests: xsk: add timeout to tests
Add a timeout to the tests so that if all packets have not been received within 3 seconds, fail the ongoing test. Hinders a test from dead-locking if there is something wrong. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20220510115604.8717-6-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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2 changed files with 16 additions and 0 deletions
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@ -91,6 +91,7 @@
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#include <stddef.h>
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#include <sys/mman.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <time.h>
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@ -792,6 +793,7 @@ static int complete_pkts(struct xsk_socket_info *xsk, int batch_size)
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static int receive_pkts(struct ifobject *ifobj, struct pollfd *fds)
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{
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struct timeval tv_end, tv_now, tv_timeout = {RECV_TMOUT, 0};
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struct pkt_stream *pkt_stream = ifobj->pkt_stream;
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struct pkt *pkt = pkt_stream_get_next_rx_pkt(pkt_stream);
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struct xsk_socket_info *xsk = ifobj->xsk;
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@ -799,7 +801,20 @@ static int receive_pkts(struct ifobject *ifobj, struct pollfd *fds)
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u32 idx_rx = 0, idx_fq = 0, rcvd, i;
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int ret;
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ret = gettimeofday(&tv_now, NULL);
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if (ret)
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exit_with_error(errno);
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timeradd(&tv_now, &tv_timeout, &tv_end);
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while (pkt) {
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ret = gettimeofday(&tv_now, NULL);
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if (ret)
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exit_with_error(errno);
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if (timercmp(&tv_now, &tv_end, >)) {
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ksft_print_msg("ERROR: [%s] Receive loop timed out\n", __func__);
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return TEST_FAILURE;
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}
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kick_rx(xsk);
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rcvd = xsk_ring_cons__peek(&xsk->rx, BATCH_SIZE, &idx_rx);
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@ -49,6 +49,7 @@
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#define SOCK_RECONF_CTR 10
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#define BATCH_SIZE 64
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#define POLL_TMOUT 1000
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#define RECV_TMOUT 3
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#define DEFAULT_PKT_CNT (4 * 1024)
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#define DEFAULT_UMEM_BUFFERS (DEFAULT_PKT_CNT / 4)
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#define UMEM_SIZE (DEFAULT_UMEM_BUFFERS * XSK_UMEM__DEFAULT_FRAME_SIZE)
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