UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

net: netcp: allocate buffers to desc before re-enable interrupt 

Currently netcp_rxpool_refill() that refill descriptors and attached
buffers to fdq while interrupt is enabled as part of NAPI poll. Doing
it while interrupt is disabled could be beneficial as hardware will
not be starved when CPU is busy with processing interrupt.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Karicheri, Muralidharan 2015-09-23 13:37:10 -04:00 committed by David S. Miller
parent 915c585787
commit 99f8ef5dc6
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/ti/netcp_core.c
View File

@ -904,12 +904,12 @@ static int netcp_rx_poll(struct napi_struct *napi, int budget)
packets = netcp_process_rx_packets(netcp, budget); packets = netcp_process_rx_packets(netcp, budget);
netcp_rxpool_refill(netcp);
if (packets < budget) { if (packets < budget) {
napi_complete(&netcp->rx_napi); napi_complete(&netcp->rx_napi);
knav_queue_enable_notify(netcp->rx_queue); knav_queue_enable_notify(netcp->rx_queue);
} }
netcp_rxpool_refill(netcp);
return packets; return packets;
} }