diff options
| author | Govindarajulu Varadarajan <_govind@gmx.com> | 2014-06-23 16:08:02 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-06-23 14:32:19 -0700 |
| commit | a145df23ef32c7b933875f334ba28791ee75766e (patch) | |
| tree | 400e7f3788d38f7639ddad71d6cb698a335581f2 /drivers/net/ethernet/cisco/enic/enic_clsf.h | |
| parent | b6e97c132bbca469d57634622dd7bdacb21f018f (diff) | |
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_clsf.h')
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/enic_clsf.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cisco/enic/enic_clsf.h b/drivers/net/ethernet/cisco/enic/enic_clsf.h index b6925b368b77..76a85bb0bb73 100644 --- a/drivers/net/ethernet/cisco/enic/enic_clsf.h +++ b/drivers/net/ethernet/cisco/enic/enic_clsf.h @@ -4,7 +4,16 @@ #include "vnic_dev.h" #include "enic.h" +#define ENIC_CLSF_EXPIRE_COUNT 128 + int enic_addfltr_5t(struct enic *enic, struct flow_keys *keys, u16 rq); int enic_delfltr(struct enic *enic, u16 filter_id); +#ifdef CONFIG_RFS_ACCEL +void enic_rfs_flw_tbl_init(struct enic *enic); +void enic_rfs_flw_tbl_free(struct enic *enic); +int enic_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, + u16 rxq_index, u32 flow_id); +#endif /* CONFIG_RFS_ACCEL */ + #endif /* _ENIC_CLSF_H_ */ |