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e1000: do vlan cleanup 

- unify vlan and nonvlan rx path
- kill adapter->vlgrp and e1000_vlan_rx_register
- allow to turn on/off rx/tx vlan accel via ethtool (set_features)

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2011-07-21 03:26:31 +00:00 committed by David S. Miller
parent a4aeb26628
commit 5622e4044a
2 changed files with 109 additions and 63 deletions
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2
drivers/net/e1000/e1000.h
View File

@ -215,7 +215,7 @@ struct e1000_adapter {
struct timer_list tx_fifo_stall_timer;
struct timer_list watchdog_timer;
struct timer_list phy_info_timer;
struct vlan_group *vlgrp;
unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
u16 mng_vlan_id;
u32 bd_number;
u32 rx_buffer_len;

170
drivers/net/e1000/e1000_main.c
View File

@ -30,6 +30,8 @@
#include <net/ip6_checksum.h>
#include <linux/io.h>
#include <linux/prefetch.h>
#include <linux/bitops.h>
#include <linux/if_vlan.h>
/* Intel Media SOC GbE MDIO physical base address */
static unsigned long ce4100_gbe_mdio_base_phy;
@ -166,7 +168,8 @@ static void e1000_smartspeed(struct e1000_adapter *adapter);
static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
struct sk_buff *skb);
static void e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp);
static bool e1000_vlan_used(struct e1000_adapter *adapter);
static void e1000_vlan_mode(struct net_device *netdev, u32 features);
static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid);
static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid);
static void e1000_restore_vlan(struct e1000_adapter *adapter);
@ -330,21 +333,24 @@ static void e1000_update_mng_vlan(struct e1000_adapter *adapter)
struct net_device *netdev = adapter->netdev;
u16 vid = hw->mng_cookie.vlan_id;
u16 old_vid = adapter->mng_vlan_id;
if (adapter->vlgrp) {
if (!vlan_group_get_device(adapter->vlgrp, vid)) {
if (hw->mng_cookie.status &
E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) {
e1000_vlan_rx_add_vid(netdev, vid);
adapter->mng_vlan_id = vid;
} else
adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
(vid != old_vid) &&
!vlan_group_get_device(adapter->vlgrp, old_vid))
e1000_vlan_rx_kill_vid(netdev, old_vid);
} else
if (!e1000_vlan_used(adapter))
return;
if (!test_bit(vid, adapter->active_vlans)) {
if (hw->mng_cookie.status &
E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) {
e1000_vlan_rx_add_vid(netdev, vid);
adapter->mng_vlan_id = vid;
} else {
adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
}
if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
(vid != old_vid) &&
!test_bit(old_vid, adapter->active_vlans))
e1000_vlan_rx_kill_vid(netdev, old_vid);
} else {
adapter->mng_vlan_id = vid;
}
}
@ -797,11 +803,28 @@ static int e1000_is_need_ioport(struct pci_dev *pdev)
}
}
static u32 e1000_fix_features(struct net_device *netdev, u32 features)
{
/*
* Since there is no support for separate rx/tx vlan accel
* enable/disable make sure tx flag is always in same state as rx.
*/
if (features & NETIF_F_HW_VLAN_RX)
features |= NETIF_F_HW_VLAN_TX;
else
features &= ~NETIF_F_HW_VLAN_TX;
return features;
}
static int e1000_set_features(struct net_device *netdev, u32 features)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
u32 changed = features ^ netdev->features;
if (changed & NETIF_F_HW_VLAN_RX)
e1000_vlan_mode(netdev, features);
if (!(changed & NETIF_F_RXCSUM))
return 0;
@ -822,18 +845,17 @@ static const struct net_device_ops e1000_netdev_ops = {
.ndo_get_stats = e1000_get_stats,
.ndo_set_rx_mode = e1000_set_rx_mode,
.ndo_set_mac_address = e1000_set_mac,
.ndo_tx_timeout = e1000_tx_timeout,
.ndo_tx_timeout = e1000_tx_timeout,
.ndo_change_mtu = e1000_change_mtu,
.ndo_do_ioctl = e1000_ioctl,
.ndo_validate_addr = eth_validate_addr,
.ndo_vlan_rx_register = e1000_vlan_rx_register,
.ndo_vlan_rx_add_vid = e1000_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = e1000_vlan_rx_kill_vid,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = e1000_netpoll,
#endif
.ndo_set_features = e1000_set_features,
.ndo_fix_features = e1000_fix_features,
.ndo_set_features = e1000_set_features,
};
/**
@ -1036,9 +1058,9 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
if (hw->mac_type >= e1000_82543) {
netdev->hw_features = NETIF_F_SG |
NETIF_F_HW_CSUM;
NETIF_F_HW_CSUM |
NETIF_F_HW_VLAN_RX;
netdev->features = NETIF_F_HW_VLAN_TX |
NETIF_F_HW_VLAN_RX |
NETIF_F_HW_VLAN_FILTER;
}
@ -1197,6 +1219,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
if (err)
goto err_register;
e1000_vlan_mode(netdev, netdev->features);
/* print bus type/speed/width info */
e_info(probe, "(PCI%s:%dMHz:%d-bit) %pM\n",
((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""),
@ -1441,8 +1465,7 @@ static int e1000_close(struct net_device *netdev)
* the same ID is registered on the host OS (let 8021q kill it) */
if ((hw->mng_cookie.status &
E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
!(adapter->vlgrp &&
vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) {
!test_bit(adapter->mng_vlan_id, adapter->active_vlans)) {
e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
}
@ -2233,7 +2256,7 @@ static void e1000_set_rx_mode(struct net_device *netdev)
else
rctl &= ~E1000_RCTL_MPE;
/* Enable VLAN filter if there is a VLAN */
if (adapter->vlgrp)
if (e1000_vlan_used(adapter))
rctl |= E1000_RCTL_VFE;
}
@ -3180,7 +3203,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
}
}
if (unlikely(vlan_tx_tag_present(skb))) {
if (vlan_tx_tag_present(skb)) {
tx_flags |= E1000_TX_FLAGS_VLAN;
tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
}
@ -3735,12 +3758,12 @@ static void e1000_receive_skb(struct e1000_adapter *adapter, u8 status,
{
skb->protocol = eth_type_trans(skb, adapter->netdev);
if ((unlikely(adapter->vlgrp && (status & E1000_RXD_STAT_VP))))
vlan_gro_receive(&adapter->napi, adapter->vlgrp,
le16_to_cpu(vlan) & E1000_RXD_SPC_VLAN_MASK,
skb);
else
napi_gro_receive(&adapter->napi, skb);
if (status & E1000_RXD_STAT_VP) {
u16 vid = le16_to_cpu(vlan) & E1000_RXD_SPC_VLAN_MASK;
__vlan_hwaccel_put_tag(skb, vid);
}
napi_gro_receive(&adapter->napi, skb);
}
/**
@ -4523,51 +4546,66 @@ void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value)
outl(value, port);
}
static void e1000_vlan_rx_register(struct net_device *netdev,
struct vlan_group *grp)
static bool e1000_vlan_used(struct e1000_adapter *adapter)
{
u16 vid;
for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID)
return true;
return false;
}
static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter,
bool filter_on)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
u32 ctrl, rctl;
u32 rctl;
if (!test_bit(__E1000_DOWN, &adapter->flags))
e1000_irq_disable(adapter);
adapter->vlgrp = grp;
if (grp) {
/* enable VLAN tag insert/strip */
ctrl = er32(CTRL);
ctrl |= E1000_CTRL_VME;
ew32(CTRL, ctrl);
if (filter_on) {
/* enable VLAN receive filtering */
rctl = er32(RCTL);
rctl &= ~E1000_RCTL_CFIEN;
if (!(netdev->flags & IFF_PROMISC))
if (!(adapter->netdev->flags & IFF_PROMISC))
rctl |= E1000_RCTL_VFE;
ew32(RCTL, rctl);
e1000_update_mng_vlan(adapter);
} else {
/* disable VLAN tag insert/strip */
ctrl = er32(CTRL);
ctrl &= ~E1000_CTRL_VME;
ew32(CTRL, ctrl);
/* disable VLAN receive filtering */
rctl = er32(RCTL);
rctl &= ~E1000_RCTL_VFE;
ew32(RCTL, rctl);
if (adapter->mng_vlan_id != (u16)E1000_MNG_VLAN_NONE) {
e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
}
}
if (!test_bit(__E1000_DOWN, &adapter->flags))
e1000_irq_enable(adapter);
}
static void e1000_vlan_mode(struct net_device *netdev, u32 features)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
u32 ctrl;
if (!test_bit(__E1000_DOWN, &adapter->flags))
e1000_irq_disable(adapter);
ctrl = er32(CTRL);
if (features & NETIF_F_HW_VLAN_RX) {
/* enable VLAN tag insert/strip */
ctrl |= E1000_CTRL_VME;
} else {
/* disable VLAN tag insert/strip */
ctrl &= ~E1000_CTRL_VME;
}
ew32(CTRL, ctrl);
if (!test_bit(__E1000_DOWN, &adapter->flags))
e1000_irq_enable(adapter);
}
static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
@ -4578,11 +4616,17 @@ static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
(vid == adapter->mng_vlan_id))
return;
if (!e1000_vlan_used(adapter))
e1000_vlan_filter_on_off(adapter, true);
/* add VID to filter table */
index = (vid >> 5) & 0x7F;
vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
vfta |= (1 << (vid & 0x1F));
e1000_write_vfta(hw, index, vfta);
set_bit(vid, adapter->active_vlans);
}
static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
@ -4593,7 +4637,6 @@ static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
if (!test_bit(__E1000_DOWN, &adapter->flags))
e1000_irq_disable(adapter);
vlan_group_set_device(adapter->vlgrp, vid, NULL);
if (!test_bit(__E1000_DOWN, &adapter->flags))
e1000_irq_enable(adapter);
@ -4602,20 +4645,23 @@ static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
vfta &= ~(1 << (vid & 0x1F));
e1000_write_vfta(hw, index, vfta);
clear_bit(vid, adapter->active_vlans);
if (!e1000_vlan_used(adapter))
e1000_vlan_filter_on_off(adapter, false);
}
static void e1000_restore_vlan(struct e1000_adapter *adapter)
{
e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp);
u16 vid;
if (adapter->vlgrp) {
u16 vid;
for (vid = 0; vid < VLAN_N_VID; vid++) {
if (!vlan_group_get_device(adapter->vlgrp, vid))
continue;
e1000_vlan_rx_add_vid(adapter->netdev, vid);
}
}
if (!e1000_vlan_used(adapter))
return;
e1000_vlan_filter_on_off(adapter, true);
for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID)
e1000_vlan_rx_add_vid(adapter->netdev, vid);
}
int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)