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authorraghavendra.koushik@neterion.com <raghavendra.koushik@neterion.com>2005-08-03 12:35:55 -0700
committerJeff Garzik <jgarzik@pobox.com>2005-08-11 00:10:45 -0400
commitbe3a6b02eb68a4d47397b771b6e4aa1f7f0f7ffb (patch)
tree67564ac815ce2475364dd215a000150240b763ca /drivers/net/s2io.c
parent25fff88eb7dbc63e03f1766e130515900d440dbb (diff)
downloadop-kernel-dev-be3a6b02eb68a4d47397b771b6e4aa1f7f0f7ffb.zip
op-kernel-dev-be3a6b02eb68a4d47397b771b6e4aa1f7f0f7ffb.tar.gz
[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>
Diffstat (limited to 'drivers/net/s2io.c')
-rw-r--r--drivers/net/s2io.c59
1 files changed, 57 insertions, 2 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index ee498d2..db3e394 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -55,6 +55,7 @@
#include <linux/ethtool.h>
#include <linux/version.h>
#include <linux/workqueue.h>
+#include <linux/if_vlan.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -174,6 +175,30 @@ static char ethtool_stats_keys[][ETH_GSTRING_LEN] = {
timer.data = (unsigned long) arg; \
mod_timer(&timer, (jiffies + exp)) \
+/* Add the vlan */
+static void s2io_vlan_rx_register(struct net_device *dev,
+ struct vlan_group *grp)
+{
+ nic_t *nic = dev->priv;
+ unsigned long flags;
+
+ spin_lock_irqsave(&nic->tx_lock, flags);
+ nic->vlgrp = grp;
+ spin_unlock_irqrestore(&nic->tx_lock, flags);
+}
+
+/* Unregister the vlan */
+static void s2io_vlan_rx_kill_vid(struct net_device *dev, unsigned long vid)
+{
+ nic_t *nic = dev->priv;
+ unsigned long flags;
+
+ spin_lock_irqsave(&nic->tx_lock, flags);
+ if (nic->vlgrp)
+ nic->vlgrp->vlan_devices[vid] = NULL;
+ spin_unlock_irqrestore(&nic->tx_lock, flags);
+}
+
/*
* Constants to be programmed into the Xena's registers, to configure
* the XAUI.
@@ -2803,6 +2828,8 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
#ifdef NETIF_F_TSO
int mss;
#endif
+ u16 vlan_tag = 0;
+ int vlan_priority = 0;
mac_info_t *mac_control;
struct config_param *config;
@@ -2821,6 +2848,13 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
queue = 0;
+ /* Get Fifo number to Transmit based on vlan priority */
+ if (sp->vlgrp && vlan_tx_tag_present(skb)) {
+ vlan_tag = vlan_tx_tag_get(skb);
+ vlan_priority = vlan_tag >> 13;
+ queue = config->fifo_mapping[vlan_priority];
+ }
+
put_off = (u16) mac_control->fifos[queue].tx_curr_put_info.offset;
get_off = (u16) mac_control->fifos[queue].tx_curr_get_info.offset;
txdp = (TxD_t *) mac_control->fifos[queue].list_info[put_off].
@@ -2857,6 +2891,11 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
txdp->Control_2 |= config->tx_intr_type;
+ if (sp->vlgrp && vlan_tx_tag_present(skb)) {
+ txdp->Control_2 |= TXD_VLAN_ENABLE;
+ txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag);
+ }
+
txdp->Control_1 |= (TXD_BUFFER0_SIZE(frg_len) |
TXD_GATHER_CODE_FIRST);
txdp->Control_1 |= TXD_LIST_OWN_XENA;
@@ -4653,10 +4692,23 @@ static int rx_osm_handler(ring_info_t *ring_data, RxD_t * rxdp)
skb->protocol = eth_type_trans(skb, dev);
#ifdef CONFIG_S2IO_NAPI
- netif_receive_skb(skb);
+ if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) {
+ /* Queueing the vlan frame to the upper layer */
+ vlan_hwaccel_receive_skb(skb, sp->vlgrp,
+ RXD_GET_VLAN_TAG(rxdp->Control_2));
+ } else {
+ netif_receive_skb(skb);
+ }
#else
- netif_rx(skb);
+ if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) {
+ /* Queueing the vlan frame to the upper layer */
+ vlan_hwaccel_rx(skb, sp->vlgrp,
+ RXD_GET_VLAN_TAG(rxdp->Control_2));
+ } else {
+ netif_rx(skb);
+ }
#endif
+
dev->last_rx = jiffies;
atomic_dec(&sp->rx_bufs_left[ring_no]);
return SUCCESS;
@@ -4954,6 +5006,9 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
dev->do_ioctl = &s2io_ioctl;
dev->change_mtu = &s2io_change_mtu;
SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
+ dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+ dev->vlan_rx_register = s2io_vlan_rx_register;
+ dev->vlan_rx_kill_vid = (void *)s2io_vlan_rx_kill_vid;
/*
* will use eth_mac_addr() for dev->set_mac_address
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