Commit f74dac08 authored by Sandeep Gopalpet's avatar Sandeep Gopalpet Committed by David S. Miller
Browse files

gianfar: Fix gianfar select_queue bogosity 



The gfar_select_queue() function was used to set queue mapping
only for forwarding/bridging applications and the condition
for locally generated packets was completely ignored.

The solution is to remove the gfar_select_queue() function and
use skb_record_rx_queue to set queue mapping for
forwarding/bridging applications. This will ensure that in case of
forwarding/bridging applications txq = rxq will be selected and
skb_tx_hash will be used to pick up a txq for locally generated packets.

Signed-off-by: default avatarSandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 80924e5f

drivers/net/gianfar.c

+4 −9
Original line number Diff line number Diff line
@@ -143,7 +143,6 @@ void gfar_start(struct net_device *dev); 
static void gfar_clear_exact_match(struct net_device *dev);

static void gfar_set_mac_for_addr(struct net_device *dev, int num, u8 *addr);

static int gfar_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);

u16 gfar_select_queue(struct net_device *dev, struct sk_buff *skb);



MODULE_AUTHOR("Freescale Semiconductor, Inc");

MODULE_DESCRIPTION("Gianfar Ethernet Driver");
@@ -455,7 +454,6 @@ static const struct net_device_ops gfar_netdev_ops = { 
	.ndo_set_multicast_list = gfar_set_multi,

	.ndo_tx_timeout = gfar_timeout,

	.ndo_do_ioctl = gfar_ioctl,

	.ndo_select_queue = gfar_select_queue,

	.ndo_get_stats = gfar_get_stats,

	.ndo_vlan_rx_register = gfar_vlan_rx_register,

	.ndo_set_mac_address = eth_mac_addr,
@@ -506,10 +504,6 @@ static inline int gfar_uses_fcb(struct gfar_private *priv) 
	return priv->vlgrp || priv->rx_csum_enable;

}



u16 gfar_select_queue(struct net_device *dev, struct sk_buff *skb)

{

	return skb_get_queue_mapping(skb);

}

static void free_tx_pointers(struct gfar_private *priv)

{

	int i = 0;
@@ -2470,10 +2464,11 @@ static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, 
	fcb = (struct rxfcb *)skb->data;



	/* Remove the FCB from the skb */

	skb_set_queue_mapping(skb, fcb->rq);

	/* Remove the padded bytes, if there are any */

	if (amount_pull)

	if (amount_pull) {

		skb_record_rx_queue(skb, fcb->rq);

		skb_pull(skb, amount_pull);

	}



	if (priv->rx_csum_enable)

		gfar_rx_checksum(skb, fcb);
@@ -2554,7 +2549,7 @@ int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit) 
				/* Remove the FCS from the packet length */

				skb_put(skb, pkt_len);

				rx_queue->stats.rx_bytes += pkt_len;



				skb_record_rx_queue(skb, rx_queue->qindex);

				gfar_process_frame(dev, skb, amount_pull);



			} else {

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