Commit 450d7a4b authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Greg Kroah-Hartman
Browse files

Staging: hv: ring parameter 



The ring size parameter should be number of pages (not bytes).
Add module parameter information as well.

Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
Acked-by: default avatarHank Janssen <hjanssen@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 7880fc54

drivers/staging/hv/NetVscApi.h

+0 −1
Original line number Diff line number Diff line
@@ -28,7 +28,6 @@ 
#include "VmbusApi.h"



/* Defines */

#define NETVSC_DEVICE_RING_BUFFER_SIZE	(64*PAGE_SIZE)

#define HW_MACADDR_LEN			6



/* Fwd declaration */

drivers/staging/hv/netvsc_drv.c

+6 −3
Original line number Diff line number Diff line
@@ -52,7 +52,11 @@ struct netvsc_driver_context { 
	struct netvsc_driver drv_obj;

};



static int netvsc_ringbuffer_size = NETVSC_DEVICE_RING_BUFFER_SIZE;

/* Need at least MAX_SKB_FRAGS (18) + 1

   to handle worst case fragmented packet */

static int ring_size = roundup_pow_of_two(2*MAX_SKB_FRAGS+1);

module_param(ring_size, int, S_IRUGO);

MODULE_PARM_DESC(ring_size, "Ring buffer size (# of pages)");



/* The one and only one */

static struct netvsc_driver_context g_netvsc_drv;
@@ -536,7 +540,7 @@ static int netvsc_drv_init(int (*drv_init)(struct hv_driver *drv)) 


	vmbus_get_interface(&net_drv_obj->Base.VmbusChannelInterface);



	net_drv_obj->RingBufferSize = netvsc_ringbuffer_size;

	net_drv_obj->RingBufferSize = ring_size * PAGE_SIZE;

	net_drv_obj->OnReceiveCallback = netvsc_recv_callback;

	net_drv_obj->OnLinkStatusChanged = netvsc_linkstatus_callback;
@@ -582,7 +586,6 @@ static void __exit netvsc_exit(void) 
MODULE_LICENSE("GPL");

MODULE_VERSION(HV_DRV_VERSION);

MODULE_DESCRIPTION("Microsoft Hyper-V network driver");

module_param(netvsc_ringbuffer_size, int, S_IRUGO);



module_init(netvsc_init);

module_exit(netvsc_exit);