Re: [PATCH v3,1/1] net/hyperv: Add flow control based on hi/low watermark

[David Miller <davem@xxxxxxxxxxxxx>]

From: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
Date: Tue, 27 Mar 2012 16:20:45 -0700

> In the existing code, we only stop queue when the ringbuffer is full,
> so the current packet has to be dropped or retried from upper layer.
> 
> This patch stops the tx queue when available ringbuffer is below
> the low watermark. So the ringbuffer still has small amount of space
> available for the current packet. This will reduce the overhead of
> retries on sending.
> 
> Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> Reviewed-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>

Applied to net-next
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