AuxXxilium/linux_dsm_epyc7002
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via-velocity: fix vlan receipt

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- vlans were using a single CAM register (see mac_set_vlan_cam)
- setting the address filtering registers for vlans is not
  needed when there is no vlan

The non-tagged interface is filtered out as soon as a tagged
(!= 0) interface is created. Its traffic appears again when an
zero-tagged interface is created.

Tested on Via Epia SN (VT6130 chipset) with several vlans whose
tag was above or beyond 255.

Signed-off-by: Séguier Régis <rseguier@e-teleport.net>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Francois Romieu 2008-04-24 23:32:33 +02:00 committed by Jeff Garzik
parent 9f3f7910c6
commit d4f73c8e45
1 changed files with 28 additions and 18 deletions
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46
drivers/net/via-velocity.c
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@ -605,7 +605,6 @@ static void __devinit velocity_get_options(struct velocity_opt *opts, int index,
static void velocity_init_cam_filter(struct velocity_info *vptr)
{
struct mac_regs __iomem * regs = vptr->mac_regs;
unsigned short vid;
/* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, &regs->MCFG);
@ -617,29 +616,33 @@ static void velocity_init_cam_filter(struct velocity_info *vptr)
mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
mac_set_cam_mask(regs, vptr->mCAMmask);
/* Enable first VCAM */
/* Enable VCAMs */
if (vptr->vlgrp) {
for (vid = 0; vid < VLAN_VID_MASK; vid++) {
if (vlan_group_get_device(vptr->vlgrp, vid)) {
/* If Tagging option is enabled and
VLAN ID is not zero, then
turn on MCFG_RTGOPT also */
if (vid != 0)
WORD_REG_BITS_ON(MCFG_RTGOPT, &regs->MCFG);
unsigned int vid, i = 0;
mac_set_vlan_cam(regs, 0, (u8 *) &vid);
if (!vlan_group_get_device(vptr->vlgrp, 0))
WORD_REG_BITS_ON(MCFG_RTGOPT, &regs->MCFG);
for (vid = 1; (vid < VLAN_VID_MASK); vid++) {
if (vlan_group_get_device(vptr->vlgrp, vid)) {
mac_set_vlan_cam(regs, i, (u8 *) &vid);
vptr->vCAMmask[i / 8] |= 0x1 << (i % 8);
if (++i >= VCAM_SIZE)
break;
}
}
vptr->vCAMmask[0] |= 1;
mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
} else {
u16 temp = 0;
mac_set_vlan_cam(regs, 0, (u8 *) &temp);
temp = 1;
mac_set_vlan_cam_mask(regs, (u8 *) &temp);
}
}
static void velocity_vlan_rx_register(struct net_device *dev,
struct vlan_group *grp)
{
struct velocity_info *vptr = netdev_priv(dev);
vptr->vlgrp = grp;
}
static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
{
struct velocity_info *vptr = netdev_priv(dev);
@ -959,11 +962,13 @@ static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_devi
dev->vlan_rx_add_vid = velocity_vlan_rx_add_vid;
dev->vlan_rx_kill_vid = velocity_vlan_rx_kill_vid;
dev->vlan_rx_register = velocity_vlan_rx_register;
#ifdef VELOCITY_ZERO_COPY_SUPPORT
dev->features |= NETIF_F_SG;
#endif
dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER;
dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
NETIF_F_HW_VLAN_RX;
if (vptr->flags & VELOCITY_FLAGS_TX_CSUM)
dev->features |= NETIF_F_IP_CSUM;
@ -1597,8 +1602,13 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx)
skb_put(skb, pkt_len - 4);
skb->protocol = eth_type_trans(skb, vptr->dev);
if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) {
vlan_hwaccel_rx(skb, vptr->vlgrp,
swab16(le16_to_cpu(rd->rdesc1.PQTAG)));
} else
netif_rx(skb);
stats->rx_bytes += pkt_len;
netif_rx(skb);
return 0;
}