From b679ef73edc251f6d200a7dd2396e9fef9e36fc3 Mon Sep 17 00:00:00 2001 From: Haiyang Zhang Date: Mon, 27 Jan 2014 15:03:42 -0800 Subject: hyperv: Add support for physically discontinuous receive buffer This will allow us to use bigger receive buffer, and prevent allocation failure due to fragmented memory. Signed-off-by: Haiyang Zhang Reviewed-by: K. Y. Srinivasan Signed-off-by: David S. Miller --- drivers/net/hyperv/hyperv_net.h | 2 +- drivers/net/hyperv/netvsc.c | 7 ++----- 2 files changed, 3 insertions(+), 6 deletions(-) (limited to 'drivers/net/hyperv') diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h index a26eecb1212..7b594ce3f21 100644 --- a/drivers/net/hyperv/hyperv_net.h +++ b/drivers/net/hyperv/hyperv_net.h @@ -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 diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index 93b485b9624..03a2c6e1715 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -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); -- cgit v1.2.3-70-g09d2