From 17ec9678d4647f0e90b04dc2a091e36451d16ad4 Mon Sep 17 00:00:00 2001 From: Junxiao Shi Date: Thu, 17 Feb 2022 11:09:06 +0000 Subject: [PATCH] net/af_xdp: allow probing when multiprocess is disabled If EAL multiprocess feature has been disabled via rte_mp_disable() function, AF_XDP driver may not be able to register its IPC callback. Previously this leads to probe failure. This commit adds a check for this condition so that AF_XDP can still be used even if multiprocess is disabled. Fixes: 9876cf8316b3 ("net/af_xdp: re-enable secondary process support") Signed-off-by: Junxiao Shi Acked-by: Ciara Loftus --- drivers/net/af_xdp/rte_eth_af_xdp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/af_xdp/rte_eth_af_xdp.c b/drivers/net/af_xdp/rte_eth_af_xdp.c index 6ac710c6bd..2163df7c5c 100644 --- a/drivers/net/af_xdp/rte_eth_af_xdp.c +++ b/drivers/net/af_xdp/rte_eth_af_xdp.c @@ -1995,7 +1995,7 @@ rte_pmd_af_xdp_probe(struct rte_vdev_device *dev) /* Register IPC callback which shares xsk fds from primary to secondary */ if (!afxdp_dev_count) { ret = rte_mp_action_register(ETH_AF_XDP_MP_KEY, afxdp_mp_send_fds); - if (ret < 0) { + if (ret < 0 && rte_errno != ENOTSUP) { AF_XDP_LOG(ERR, "%s: Failed to register multi-process IPC callback: %s", name, strerror(rte_errno)); return -1; -- 2.39.5