| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1430722042-26449-7-git-send-email-sathya.perla@emulex.com> Date: Mon, 4 May 2015 02:47:18 -0400 From: Sathya Perla <sathya.perla@...lex.com> To: netdev@...r.kernel.org Subject: [PATCH net-next 06/10] be2net: post full RXQ on interface enable From: Suresh Reddy <Suresh.Reddy@...lex.com> When an RXQ is created in be_open(), the driver currently posts only 64 buffers. This sometimes results in packet drops when there is a traffic burst as soon as the interface is enabled. This patch fixes this problem by posting the full RXQ on interface enable. Signed-off-by: Suresh Reddy <Suresh.Reddy@...lex.com> Signed-off-by: Sathya Perla <sathya.perla@...lex.com> --- drivers/net/ethernet/emulex/benet/be_main.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 66749d0..f6a226e 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -3324,9 +3324,12 @@ static int be_rx_qs_create(struct be_adapter *adapter) memcpy(rss->rss_hkey, rss_key, RSS_HASH_KEY_LEN); - /* First time posting */ + /* Post 1 less than RXQ-len to avoid head being equal to tail, + * which is a queue empty condition + */ for_all_rx_queues(adapter, rxo, i) - be_post_rx_frags(rxo, GFP_KERNEL, MAX_RX_POST); + be_post_rx_frags(rxo, GFP_KERNEL, RX_Q_LEN - 1); + return 0; } -- 2.2.0 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists