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path: root/drivers/net/hyperv/netvsc.c
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Diffstat (limited to 'drivers/net/hyperv/netvsc.c')
-rw-r--r--drivers/net/hyperv/netvsc.c18
1 files changed, 3 insertions, 15 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index d2ee66c259a7..5d5bd513847f 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -31,7 +31,6 @@
#include <linux/vmalloc.h>
#include <linux/rtnetlink.h>
#include <linux/prefetch.h>
-#include <linux/reciprocal_div.h>
#include <asm/sync_bitops.h>
@@ -635,17 +634,6 @@ void netvsc_device_remove(struct hv_device *device)
#define RING_AVAIL_PERCENT_HIWATER 20
#define RING_AVAIL_PERCENT_LOWATER 10
-/*
- * Get the percentage of available bytes to write in the ring.
- * The return value is in range from 0 to 100.
- */
-static u32 hv_ringbuf_avail_percent(const struct hv_ring_buffer_info *ring_info)
-{
- u32 avail_write = hv_get_bytes_to_write(ring_info);
-
- return reciprocal_divide(avail_write * 100, netvsc_ring_reciprocal);
-}
-
static inline void netvsc_free_send_slot(struct netvsc_device *net_device,
u32 index)
{
@@ -694,8 +682,8 @@ static void netvsc_send_tx_complete(struct net_device *ndev,
struct netdev_queue *txq = netdev_get_tx_queue(ndev, q_idx);
if (netif_tx_queue_stopped(txq) &&
- (hv_ringbuf_avail_percent(&channel->outbound) > RING_AVAIL_PERCENT_HIWATER ||
- queue_sends < 1)) {
+ (hv_get_avail_to_write_percent(&channel->outbound) >
+ RING_AVAIL_PERCENT_HIWATER || queue_sends < 1)) {
netif_tx_wake_queue(txq);
ndev_ctx->eth_stats.wake_queue++;
}
@@ -802,7 +790,7 @@ static inline int netvsc_send_pkt(
struct netdev_queue *txq = netdev_get_tx_queue(ndev, packet->q_idx);
u64 req_id;
int ret;
- u32 ring_avail = hv_ringbuf_avail_percent(&out_channel->outbound);
+ u32 ring_avail = hv_get_avail_to_write_percent(&out_channel->outbound);
nvmsg.hdr.msg_type = NVSP_MSG1_TYPE_SEND_RNDIS_PKT;
if (skb)