[PATCH] S2io: VLAN support
Hi, Patch below adds VLAN support to the driver. Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com> Signed-off-by: Raghavendra Koushik <raghavendra.koushik@neterion.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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@ -55,6 +55,7 @@
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#include <linux/ethtool.h>
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#include <linux/version.h>
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#include <linux/workqueue.h>
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#include <linux/if_vlan.h>
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#include <asm/system.h>
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#include <asm/uaccess.h>
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@ -174,6 +175,30 @@ static char ethtool_stats_keys[][ETH_GSTRING_LEN] = {
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timer.data = (unsigned long) arg; \
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mod_timer(&timer, (jiffies + exp)) \
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/* Add the vlan */
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static void s2io_vlan_rx_register(struct net_device *dev,
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struct vlan_group *grp)
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{
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nic_t *nic = dev->priv;
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unsigned long flags;
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spin_lock_irqsave(&nic->tx_lock, flags);
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nic->vlgrp = grp;
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spin_unlock_irqrestore(&nic->tx_lock, flags);
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}
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/* Unregister the vlan */
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static void s2io_vlan_rx_kill_vid(struct net_device *dev, unsigned long vid)
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{
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nic_t *nic = dev->priv;
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unsigned long flags;
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spin_lock_irqsave(&nic->tx_lock, flags);
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if (nic->vlgrp)
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nic->vlgrp->vlan_devices[vid] = NULL;
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spin_unlock_irqrestore(&nic->tx_lock, flags);
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}
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/*
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* Constants to be programmed into the Xena's registers, to configure
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* the XAUI.
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@ -2803,6 +2828,8 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
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#ifdef NETIF_F_TSO
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int mss;
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#endif
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u16 vlan_tag = 0;
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int vlan_priority = 0;
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mac_info_t *mac_control;
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struct config_param *config;
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@ -2821,6 +2848,13 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
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queue = 0;
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/* Get Fifo number to Transmit based on vlan priority */
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if (sp->vlgrp && vlan_tx_tag_present(skb)) {
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vlan_tag = vlan_tx_tag_get(skb);
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vlan_priority = vlan_tag >> 13;
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queue = config->fifo_mapping[vlan_priority];
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}
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put_off = (u16) mac_control->fifos[queue].tx_curr_put_info.offset;
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get_off = (u16) mac_control->fifos[queue].tx_curr_get_info.offset;
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txdp = (TxD_t *) mac_control->fifos[queue].list_info[put_off].
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@ -2857,6 +2891,11 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
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txdp->Control_2 |= config->tx_intr_type;
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if (sp->vlgrp && vlan_tx_tag_present(skb)) {
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txdp->Control_2 |= TXD_VLAN_ENABLE;
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txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag);
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}
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txdp->Control_1 |= (TXD_BUFFER0_SIZE(frg_len) |
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TXD_GATHER_CODE_FIRST);
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txdp->Control_1 |= TXD_LIST_OWN_XENA;
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@ -4653,10 +4692,23 @@ static int rx_osm_handler(ring_info_t *ring_data, RxD_t * rxdp)
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skb->protocol = eth_type_trans(skb, dev);
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#ifdef CONFIG_S2IO_NAPI
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netif_receive_skb(skb);
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if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) {
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/* Queueing the vlan frame to the upper layer */
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vlan_hwaccel_receive_skb(skb, sp->vlgrp,
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RXD_GET_VLAN_TAG(rxdp->Control_2));
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} else {
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netif_receive_skb(skb);
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}
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#else
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netif_rx(skb);
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if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) {
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/* Queueing the vlan frame to the upper layer */
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vlan_hwaccel_rx(skb, sp->vlgrp,
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RXD_GET_VLAN_TAG(rxdp->Control_2));
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} else {
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netif_rx(skb);
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}
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#endif
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dev->last_rx = jiffies;
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atomic_dec(&sp->rx_bufs_left[ring_no]);
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return SUCCESS;
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@ -4954,6 +5006,9 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
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dev->do_ioctl = &s2io_ioctl;
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dev->change_mtu = &s2io_change_mtu;
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SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
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dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
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dev->vlan_rx_register = s2io_vlan_rx_register;
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dev->vlan_rx_kill_vid = (void *)s2io_vlan_rx_kill_vid;
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/*
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* will use eth_mac_addr() for dev->set_mac_address
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@ -689,6 +689,8 @@ struct s2io_nic {
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#define CARD_UP 2
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atomic_t card_state;
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volatile unsigned long link_state;
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struct vlan_group *vlgrp;
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spinlock_t rx_lock;
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atomic_t isr_cnt;
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};
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