forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

hyperv: Add support for physically discontinuous receive buffer

Browse source 
This will allow us to use bigger receive buffer, and prevent allocation failure
due to fragmented memory.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Haiyang Zhang 2014-01-27 15:03:42 -08:00 • committed by David S. Miller
parent 731073b9c9
commit b679ef73ed
3 changed files with 11 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/net/hyperv/hyperv_net.h
View file

@ -462,7 +462,7 @@ struct nvsp_message {
#define NETVSC_MTU 65536
#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*2) /* 2MB */
#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */
#define NETVSC_RECEIVE_BUFFER_ID 0xcafe

7
drivers/net/hyperv/netvsc.c
View file

@ -136,8 +136,7 @@ static int netvsc_destroy_recv_buf(struct netvsc_device *net_device)
if (net_device->recv_buf) {
/* Free up the receive buffer */
free_pages((unsigned long)net_device->recv_buf,
get_order(net_device->recv_buf_size));
vfree(net_device->recv_buf);
net_device->recv_buf = NULL;
}
@ -163,9 +162,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
return -ENODEV;
ndev = net_device->ndev;
net_device->recv_buf =
(void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO,
get_order(net_device->recv_buf_size));
net_device->recv_buf = vzalloc(net_device->recv_buf_size);
if (!net_device->recv_buf) {
netdev_err(ndev, "unable to allocate receive "
"buffer of size %d\n", net_device->recv_buf_size);