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Commit 5bb6423e authored by Vladimir Kondratiev's avatar Vladimir Kondratiev Committed by John W. Linville
Browse files

wil6210: inline functions for vring hi/lo watermarks 



Provide clear definition of the watermarks for the vring descriptor space.

Signed-off-by: default avatarVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent fc219eed

drivers/net/wireless/ath/wil6210/txrx.c

+18 −2
Original line number Diff line number Diff line
@@ -64,6 +64,22 @@ static inline int wil_vring_avail_tx(struct vring *vring) 
	return vring->size - used - 1;

}



/**

 * wil_vring_wmark_low - low watermark for available descriptor space

 */

static inline int wil_vring_wmark_low(struct vring *vring)

{

	return vring->size/8;

}



/**

 * wil_vring_wmark_high - high watermark for available descriptor space

 */

static inline int wil_vring_wmark_high(struct vring *vring)

{

	return vring->size/4;

}



static int wil_vring_alloc(struct wil6210_priv *wil, struct vring *vring)

{

	struct device *dev = wil_to_dev(wil);
@@ -1007,7 +1023,7 @@ netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev) 
	rc = wil_tx_vring(wil, vring, skb);



	/* do we still have enough room in the vring? */

	if (wil_vring_avail_tx(vring) < vring->size/8)

	if (wil_vring_avail_tx(vring) < wil_vring_wmark_low(vring))

		netif_tx_stop_all_queues(wil_to_ndev(wil));



	switch (rc) {
@@ -1116,7 +1132,7 @@ int wil_tx_complete(struct wil6210_priv *wil, int ringid) 
			done++;

		}

	}

	if (wil_vring_avail_tx(vring) > vring->size/4)

	if (wil_vring_avail_tx(vring) > wil_vring_wmark_high(vring))

		netif_tx_wake_all_queues(wil_to_ndev(wil));



	return done;