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Commit 03269c65 authored by Vladimir Kondratiev's avatar Vladimir Kondratiev Committed by John W. Linville
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wil6210: Optimize Tx completion 



No need to modify HW descriptor, as it will be re-initialized on Tx.

Signed-off-by: default avatarVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 4d1ac072

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

+6 −4
Original line number Diff line number Diff line
@@ -855,10 +855,12 @@ int wil_tx_complete(struct wil6210_priv *wil, int ringid) 
		} else {

			dma_unmap_page(dev, pa, dmalen, DMA_TO_DEVICE);

		}

		d->dma.addr.addr_low = 0;

		d->dma.addr.addr_high = 0;

		d->dma.length = 0;

		d->dma.status = TX_DMA_STATUS_DU;

		/*

		 * There is no need to touch HW descriptor:

		 * - ststus bit TX_DMA_STATUS_DU is set by design,

		 *   so hardware will not try to process this desc.,

		 * - rest of descriptor will be initialized on Tx.

		 */

		vring->swtail = wil_vring_next_tail(vring);

		done++;

	}