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From: Ciara Loftus <ciara.loftus@intel.com>
To: dev@dpdk.org
Cc: Ciara Loftus <ciara.loftus@intel.com>
Subject: [dpdk-dev] [PATCH v2 2/3] net/af_xdp: Use recvfrom() instead of poll()
Date: Tue,  9 Mar 2021 10:19:57 +0000	[thread overview]
Message-ID: <20210309101958.27355-3-ciara.loftus@intel.com> (raw)
In-Reply-To: <20210309101958.27355-1-ciara.loftus@intel.com>

poll() is more expensive and requires more tuning
when used with the upcoming busy polling functionality.

Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
---
 drivers/net/af_xdp/rte_eth_af_xdp.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/af_xdp/rte_eth_af_xdp.c b/drivers/net/af_xdp/rte_eth_af_xdp.c
index be524e4784..9c0e935cd3 100644
--- a/drivers/net/af_xdp/rte_eth_af_xdp.c
+++ b/drivers/net/af_xdp/rte_eth_af_xdp.c
@@ -263,7 +263,8 @@ af_xdp_rx_zc(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 	if (nb_pkts == 0) {
 #if defined(XDP_USE_NEED_WAKEUP)
 		if (xsk_ring_prod__needs_wakeup(fq))
-			(void)poll(rxq->fds, 1, 1000);
+			recvfrom(xsk_socket__fd(rxq->xsk), NULL, 0,
+				MSG_DONTWAIT, NULL, NULL);
 #endif
 
 		return 0;
@@ -335,7 +336,8 @@ af_xdp_rx_cp(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 	if (nb_pkts == 0) {
 #if defined(XDP_USE_NEED_WAKEUP)
 		if (xsk_ring_prod__needs_wakeup(fq))
-			(void)poll(rxq->fds, 1, 1000);
+			recvfrom(xsk_socket__fd(rxq->xsk), NULL, 0,
+				MSG_DONTWAIT, NULL, NULL);
 #endif
 		return 0;
 	}
-- 
2.17.1


  parent reply	other threads:[~2021-03-09 10:51 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-18  9:23 [dpdk-dev] [PATCH RFC 0/3] AF_XDP Preferred Busy Polling Ciara Loftus
2021-02-18  9:23 ` [dpdk-dev] [PATCH RFC 1/3] net/af_xdp: Increase max batch size to 512 Ciara Loftus
2021-02-18  9:23 ` [dpdk-dev] [PATCH RFC 2/3] net/af_xdp: Use recvfrom() instead of poll() Ciara Loftus
2021-02-18  9:23 ` [dpdk-dev] [PATCH RFC 3/3] net/af_xdp: preferred busy polling Ciara Loftus
2021-02-24 11:18 ` [dpdk-dev] [PATCH 0/3] AF_XDP Preferred Busy Polling Ciara Loftus
2021-02-24 11:18   ` [dpdk-dev] [PATCH 1/3] net/af_xdp: Increase max batch size to 512 Ciara Loftus
2021-03-01 16:31     ` Ferruh Yigit
2021-03-03 15:07       ` Loftus, Ciara
2021-03-03 15:38         ` Ferruh Yigit
2021-02-24 11:18   ` [dpdk-dev] [PATCH 2/3] net/af_xdp: Use recvfrom() instead of poll() Ciara Loftus
2021-02-24 11:18   ` [dpdk-dev] [PATCH 3/3] net/af_xdp: preferred busy polling Ciara Loftus
2021-03-01 16:32     ` Ferruh Yigit
2021-03-04 12:26       ` Loftus, Ciara
2021-03-08 15:54         ` Loftus, Ciara
2021-03-09 10:19   ` [dpdk-dev] [PATCH v2 0/3] AF_XDP Preferred Busy Polling Ciara Loftus
2021-03-09 10:19     ` [dpdk-dev] [PATCH v2 1/3] net/af_xdp: allow bigger batch sizes Ciara Loftus
2021-03-09 16:33       ` Ferruh Yigit
2021-03-10  7:21         ` Loftus, Ciara
2021-03-09 10:19     ` Ciara Loftus [this message]
2021-03-09 10:19     ` [dpdk-dev] [PATCH v2 3/3] net/af_xdp: preferred busy polling Ciara Loftus
2021-03-09 16:33       ` Ferruh Yigit
2021-03-10  7:55         ` Loftus, Ciara
2021-03-10  7:48     ` [dpdk-dev] [PATCH v3 0/3] AF_XDP Preferred Busy Polling Ciara Loftus
2021-03-10  7:48       ` [dpdk-dev] [PATCH v3 1/3] net/af_xdp: allow bigger batch sizes Ciara Loftus
2021-03-10  7:48       ` [dpdk-dev] [PATCH v3 2/3] net/af_xdp: Use recvfrom() instead of poll() Ciara Loftus
2021-03-10  7:48       ` [dpdk-dev] [PATCH v3 3/3] net/af_xdp: preferred busy polling Ciara Loftus
2021-03-10 17:50       ` [dpdk-dev] [PATCH v3 0/3] AF_XDP Preferred Busy Polling Ferruh Yigit

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