This series fixes a set of error-path and lifecycle bugs in the memif PMD and adds a unit test for the driver.
The first five patches are fixes: - guard eth_memif_tx() against an empty burst so a zero-count call returns before touching the burst or the ring; - close file descriptor 0 instead of leaking it (the close path tested for fd > 0 instead of fd >= 0); - free the MAC address allocated during probe when a later step fails, instead of leaking it; - unwind a partially-created device on failure in memif_create(), releasing the port and the process-private data rather than returning with them registered and leaked; - disconnect the device on close so queues and shared regions are torn down, and make memif_disconnect() safe to call on a device that was configured but never started. The last patch adds a memif PMD unit test (app/test, memif_pmd_autotest) that stands up a server/client vdev pair over a loopback socket and covers dev_info, link state, stats, single- and multi-segment loopback, stop/start reconnect, empty Tx burst, and close without stop. Verified: memif_pmd_autotest passes 9/9; check-git-log and checkpatch are clean across the series. Sriram Yagnaraman (6): net/memif: guard against empty Tx burst net/memif: close file descriptor zero net/memif: fix MAC address leak on probe failure net/memif: unwind partial device on create failure net/memif: disconnect on device close test/memif: add memif PMD unit test app/test/meson.build | 1 + app/test/test_pmd_memif.c | 574 ++++++++++++++++++++++++++++++ drivers/net/memif/memif_socket.c | 14 +- drivers/net/memif/rte_eth_memif.c | 59 ++- 4 files changed, 626 insertions(+), 22 deletions(-) create mode 100644 app/test/test_pmd_memif.c -- 2.43.7
