From 837f6452b870e7e68c2b6a0d50758885c860ab66 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 9 Sep 2013 16:24:46 -0700 Subject: iscsi-target: Bump default TCP listen backlog to 256 This patch bumps the default TCP listen backlog within iscsit_setup_np() from 5 to 256, in order to reduce the overall latency caused by a small backlog with 100's of simultaneous login attempts directed to the same single network portal. Also add a ISCSIT_TCP_BACKLOG macro in iscsi_target_core.h. Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target_core.h | 1 + drivers/target/iscsi/iscsi_target_login.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/target') diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index f6ff257e2b66..1e84f6fc1cc8 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -19,6 +19,7 @@ #define WHITE_SPACE " \t\v\f\n\r" #define ISCSIT_MIN_TAGS 16 #define ISCSIT_EXTRA_TAGS 8 +#define ISCSIT_TCP_BACKLOG 256 /* struct iscsi_node_attrib sanity values */ #define NA_DATAOUT_TIMEOUT 3 diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index d903c0c702d6..5f9248ddade9 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -873,7 +873,7 @@ int iscsit_setup_np( struct __kernel_sockaddr_storage *sockaddr) { struct socket *sock = NULL; - int backlog = 5, ret, opt = 0, len; + int backlog = ISCSIT_TCP_BACKLOG, ret, opt = 0, len; switch (np->np_network_transport) { case ISCSI_TCP: -- cgit v1.2.3