[PATCH net-next v3 10/12] selftests: ncdevmem: Run selftest when none of the -s or -c has been provided
From: Stanislav Fomichev <sdf@fomichev.me>
Date: 2024-10-09 17:13:06
Subsystem:
kernel selftest framework, networking [general], the rest · Maintainers:
Shuah Khan, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This will be used as a 'probe' mode in the selftest to check whether the device supports the devmem or not. Use hard-coded queue layout (two last queues) and prevent user from passing custom -q and/or -t. Cc: Mina Almasry <redacted> Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> --- tools/testing/selftests/net/ncdevmem.c | 42 ++++++++++++++++++++------ 1 file changed, 32 insertions(+), 10 deletions(-)
diff --git a/tools/testing/selftests/net/ncdevmem.c b/tools/testing/selftests/net/ncdevmem.c
index 90aacfb3433f..3a456c058241 100644
--- a/tools/testing/selftests/net/ncdevmem.c
+++ b/tools/testing/selftests/net/ncdevmem.c@@ -64,7 +64,7 @@ static char *client_ip; static char *port; static size_t do_validation; static int start_queue = -1; -static int num_queues = 1; +static int num_queues = -1; static char *ifname; static unsigned int ifindex; static unsigned int dmabuf_id;
@@ -706,19 +706,31 @@ int main(int argc, char *argv[]) } } - if (!server_ip) - error(1, 0, "Missing -s argument\n"); - - if (!port) - error(1, 0, "Missing -p argument\n"); - if (!ifname) error(1, 0, "Missing -f argument\n"); ifindex = if_nametoindex(ifname); - if (start_queue < 0) { - start_queue = rxq_num(ifindex) - 1; + if (!server_ip && !client_ip) { + if (start_queue < 0 && num_queues < 0) { + num_queues = rxq_num(ifindex); + if (num_queues < 0) + error(1, 0, "couldn't detect number of queues\n"); + /* make sure can bind to multiple queues */ + start_queues = num_queues / 2; + num_queues /= 2; + } + + if (start_queue < 0 || num_queues < 0) + error(1, 0, "Both -t and -q are requred\n"); + + run_devmem_tests(); + return 0; + } + + if (start_queue < 0 && num_queues < 0) { + num_queues = 1; + start_queue = rxq_num(ifindex) - num_queues; if (start_queue < 0) error(1, 0, "couldn't detect number of queues\n");
@@ -729,7 +741,17 @@ int main(int argc, char *argv[]) for (; optind < argc; optind++) fprintf(stderr, "extra arguments: %s\n", argv[optind]); - run_devmem_tests(); + if (start_queue < 0) + error(1, 0, "Missing -t argument\n"); + + if (num_queues < 0) + error(1, 0, "Missing -q argument\n"); + + if (!server_ip) + error(1, 0, "Missing -s argument\n"); + + if (!port) + error(1, 0, "Missing -p argument\n"); mem = provider->alloc(getpagesize() * NUM_PAGES); ret = is_server ? do_server(mem) : 1;
--
2.47.0