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authorGovindarajulu Varadarajan <_govind@gmx.com>2014-06-23 16:08:02 +0530
committerDavid S. Miller <davem@davemloft.net>2014-06-23 14:32:19 -0700
commita145df23ef32c7b933875f334ba28791ee75766e (patch)
tree400e7f3788d38f7639ddad71d6cb698a335581f2 /drivers/net/ethernet/cisco/enic/enic_res.c
parentenic: alloc/free rx_cpu_rmap (diff)
downloadlinux-dev-a145df23ef32c7b933875f334ba28791ee75766e.tar.xz
linux-dev-a145df23ef32c7b933875f334ba28791ee75766e.zip
enic: Add Accelerated RFS support
This patch adds supports for Accelerated Receive Flow Steering. When the desired rx is different from current rq, for a flow, kernel calls the driver function enic_rx_flow_steer(). enic_rx_flow_steer adds a IP-TCP/UDP hardware filter. Driver registers a timer function enic_flow_may_expire. This function is called every HZ/4 seconds. In this function we check if the added filter has expired by calling rps_may_expire_flow(). If the flow has expired, it removes the hw filter. As of now adaptor supports only IPv4 - TCP/UDP filters. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cisco/enic/enic_res.c')
-rw-r--r--drivers/net/ethernet/cisco/enic/enic_res.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cisco/enic/enic_res.c b/drivers/net/ethernet/cisco/enic/enic_res.c
index 31d658880c3c..9c96911fb2c8 100644
--- a/drivers/net/ethernet/cisco/enic/enic_res.c
+++ b/drivers/net/ethernet/cisco/enic/enic_res.c
@@ -71,6 +71,7 @@ int enic_get_vnic_config(struct enic *enic)
GET_CONFIG(intr_mode);
GET_CONFIG(intr_timer_usec);
GET_CONFIG(loop_tag);
+ GET_CONFIG(num_arfs);
c->wq_desc_count =
min_t(u32, ENIC_MAX_WQ_DESCS,