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Commit 364a97f5 authored by Roman Yeryomin's avatar Roman Yeryomin Committed by David S. Miller
Browse files

net: korina: optimize rx descriptor flags processing 



Signed-off-by: default avatarRoman Yeryomin <roman@advem.lv>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7ce103b4

drivers/net/ethernet/korina.c

+44 −43
Original line number Diff line number Diff line
@@ -363,11 +363,18 @@ static int korina_rx(struct net_device *dev, int limit) 
		if ((KORINA_RBSIZE - (u32)DMA_COUNT(rd->control)) == 0)

			break;



		/* check that this is a whole packet

		 * WARNING: DMA_FD bit incorrectly set

		 * in Rc32434 (errata ref #077) */

		if (!(devcs & ETH_RX_LD))

			goto next;



		if (!(devcs & ETH_RX_ROK)) {

			/* Update statistics counters */

			dev->stats.rx_errors++;

			dev->stats.rx_dropped++;

			if (devcs & ETH_RX_CRC)

				dev->stats.rx_crc_errors++;

		if (devcs & ETH_RX_LOR)

			dev->stats.rx_length_errors++;

			if (devcs & ETH_RX_LE)

				dev->stats.rx_length_errors++;

			if (devcs & ETH_RX_OVR)
@@ -375,17 +382,11 @@ static int korina_rx(struct net_device *dev, int limit) 
			if (devcs & ETH_RX_CV)

				dev->stats.rx_frame_errors++;

			if (devcs & ETH_RX_CES)

			dev->stats.rx_length_errors++;

		if (devcs & ETH_RX_MP)

			dev->stats.multicast++;

				dev->stats.rx_frame_errors++;



			goto next;

		}



		if ((devcs & ETH_RX_LD) != ETH_RX_LD) {

			/* check that this is a whole packet

			 * WARNING: DMA_FD bit incorrectly set

			 * in Rc32434 (errata ref #077) */

			dev->stats.rx_errors++;

			dev->stats.rx_dropped++;

		} else if ((devcs & ETH_RX_ROK)) {

		pkt_len = RCVPKT_LENGTH(devcs);



		/* must be the (first and) last
@@ -414,8 +415,8 @@ static int korina_rx(struct net_device *dev, int limit) 
			dev->stats.multicast++;



		lp->rx_skb[lp->rx_next_done] = skb_new;

		}



next:

		rd->devcs = 0;



		/* Restore descriptor's curr_addr */