From 69088822abe7a09145fc86e1d5dd4996e29abc2d Mon Sep 17 00:00:00 2001 From: Sowmini Varadhan Date: Sat, 25 Oct 2014 15:12:12 -0400 Subject: sunvnet: NAPIfy sunvnet Move Rx packet procssing to the NAPI poll callback. Disable VIO interrupt and unconditioanlly go into NAPI context from vnet_event. Note that we want to minimize the number of LDC STOP/START messages sent. Specifically, do not send a STOP message if vnet_walk_rx does not read all the available descriptors because of the NAPI budget limitation. Instead, note the end index as part of port state, and resume from this index when the next poll callback is triggered. Signed-off-by: Sowmini Varadhan Acked-by: Raghuram Kothakota Acked-by: Dwight Engen Signed-off-by: David S. Miller --- drivers/net/ethernet/sun/sunvnet.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/net/ethernet/sun/sunvnet.h') diff --git a/drivers/net/ethernet/sun/sunvnet.h b/drivers/net/ethernet/sun/sunvnet.h index c91104542619..c8a862e471dd 100644 --- a/drivers/net/ethernet/sun/sunvnet.h +++ b/drivers/net/ethernet/sun/sunvnet.h @@ -56,6 +56,11 @@ struct vnet_port { struct timer_list clean_timer; u64 rmtu; + + struct napi_struct napi; + u32 napi_stop_idx; + bool napi_resume; + int rx_event; }; static inline struct vnet_port *to_vnet_port(struct vio_driver_state *vio) @@ -97,7 +102,6 @@ struct vnet { struct list_head list; u64 local_mac; - struct tasklet_struct vnet_tx_wakeup; }; #endif /* _SUNVNET_H */ -- cgit v1.2.1