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Message-ID: <20100124104239.GA21371@psychotron.redhat.com>
Date: Sun, 24 Jan 2010 11:42:45 +0100
From: Jiri Pirko <jpirko@...hat.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net
Subject: [PATCH net-next-2.6] net: use helpers to access uc list
Instead of accessing netdev->uc.count and netdev->uc.list by hand in each
driver, this patch converts it to use two macros netdev_uc_count and
netdev_for_each_uc_addr and makes the code nicer. Will post similar helpers for
mc list soon.
Signed-off-by: Jiri Pirko <jpirko@...hat.com>
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index d83512d..aa46cc6 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -48,7 +48,6 @@
#include <linux/cache.h>
#include <linux/firmware.h>
#include <linux/log2.h>
-#include <linux/list.h>
#if defined(CONFIG_CNIC) || defined(CONFIG_CNIC_MODULE)
#define BCM_CNIC 1
@@ -3520,7 +3519,7 @@ bnx2_set_rx_mode(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
u32 rx_mode, sort_mode;
- struct netdev_hw_addr *ha;
+ unsigned char *ha;
int i;
if (!netif_running(dev))
@@ -3579,15 +3578,15 @@ bnx2_set_rx_mode(struct net_device *dev)
sort_mode |= BNX2_RPM_SORT_USER0_MC_HSH_EN;
}
- if (dev->uc.count > BNX2_MAX_UNICAST_ADDRESSES) {
+ if (netdev_uc_count(dev) > BNX2_MAX_UNICAST_ADDRESSES) {
rx_mode |= BNX2_EMAC_RX_MODE_PROMISCUOUS;
sort_mode |= BNX2_RPM_SORT_USER0_PROM_EN |
BNX2_RPM_SORT_USER0_PROM_VLAN;
} else if (!(dev->flags & IFF_PROMISC)) {
/* Add all entries into to the match filter list */
i = 0;
- list_for_each_entry(ha, &dev->uc.list, list) {
- bnx2_set_mac_addr(bp, ha->addr,
+ netdev_for_each_uc_addr(ha, dev) {
+ bnx2_set_mac_addr(bp, ha,
i + BNX2_START_UNICAST_ADDRESS_INDEX);
sort_mode |= (1 <<
(i + BNX2_START_UNICAST_ADDRESS_INDEX));
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 87f575c..caddbd6 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -2108,7 +2108,7 @@ static void e1000_set_rx_mode(struct net_device *netdev)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
- struct netdev_hw_addr *ha;
+ unsigned char *ha;
bool use_uc = false;
struct dev_addr_list *mc_ptr;
u32 rctl;
@@ -2139,7 +2139,7 @@ static void e1000_set_rx_mode(struct net_device *netdev)
rctl |= E1000_RCTL_VFE;
}
- if (netdev->uc.count > rar_entries - 1) {
+ if (netdev_uc_count(netdev) > rar_entries - 1) {
rctl |= E1000_RCTL_UPE;
} else if (!(netdev->flags & IFF_PROMISC)) {
rctl &= ~E1000_RCTL_UPE;
@@ -2162,10 +2162,10 @@ static void e1000_set_rx_mode(struct net_device *netdev)
*/
i = 1;
if (use_uc)
- list_for_each_entry(ha, &netdev->uc.list, list) {
+ netdev_for_each_uc_addr(ha, netdev) {
if (i == rar_entries)
break;
- e1000_rar_set(hw, ha->addr, i++);
+ e1000_rar_set(hw, ha, i++);
}
WARN_ON(i == rar_entries);
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index d967949..c29283c 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2905,17 +2905,16 @@ static int igb_write_uc_addr_list(struct net_device *netdev)
int count = 0;
/* return ENOMEM indicating insufficient memory for addresses */
- if (netdev->uc.count > rar_entries)
+ if (netdev_uc_count(netdev) > rar_entries)
return -ENOMEM;
- if (netdev->uc.count && rar_entries) {
- struct netdev_hw_addr *ha;
- list_for_each_entry(ha, &netdev->uc.list, list) {
+ if (netdev_uc_count(netdev) && rar_entries) {
+ unsigned char *ha;
+
+ netdev_for_each_uc_addr(ha, netdev) {
if (!rar_entries)
break;
- igb_rar_set_qsel(adapter, ha->addr,
- rar_entries--,
- vfn);
+ igb_rar_set_qsel(adapter, ha, rar_entries--, vfn);
count++;
}
}
diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index 276c2aa..05e7d5c 100644
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -28,7 +28,6 @@
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/sched.h>
-#include <linux/list.h>
#include <linux/netdevice.h>
#include "ixgbe.h"
@@ -1347,7 +1346,7 @@ static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq)
/**
* ixgbe_update_uc_addr_list_generic - Updates MAC list of secondary addresses
* @hw: pointer to hardware structure
- * @uc_list: the list of new addresses
+ * @netdev: pointer to net device structure
*
* The given list replaces any existing list. Clears the secondary addrs from
* receive address registers. Uses unused receive address registers for the
@@ -1357,13 +1356,13 @@ static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq)
* manually putting the device into promiscuous mode.
**/
s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw,
- struct list_head *uc_list)
+ struct net_device *netdev)
{
u32 i;
u32 old_promisc_setting = hw->addr_ctrl.overflow_promisc;
u32 uc_addr_in_use;
u32 fctrl;
- struct netdev_hw_addr *ha;
+ unsigned char *ha;
/*
* Clear accounting of old secondary address list,
@@ -1381,9 +1380,9 @@ s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw,
}
/* Add the new addresses */
- list_for_each_entry(ha, uc_list, list) {
+ netdev_for_each_uc_addr(ha, netdev) {
hw_dbg(hw, " Adding the secondary addresses:\n");
- ixgbe_add_uc_addr(hw, ha->addr, 0);
+ ixgbe_add_uc_addr(hw, ha, 0);
}
if (hw->addr_ctrl.overflow_promisc) {
diff --git a/drivers/net/ixgbe/ixgbe_common.h b/drivers/net/ixgbe/ixgbe_common.h
index dfff0ff..13606d4 100644
--- a/drivers/net/ixgbe/ixgbe_common.h
+++ b/drivers/net/ixgbe/ixgbe_common.h
@@ -60,7 +60,7 @@ s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
u32 mc_addr_count,
ixgbe_mc_addr_itr func);
s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw,
- struct list_head *uc_list);
+ struct net_device *netdev);
s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw);
s32 ixgbe_disable_mc_generic(struct ixgbe_hw *hw);
s32 ixgbe_enable_rx_dma_generic(struct ixgbe_hw *hw, u32 regval);
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index ee41d33..439645d 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -2568,7 +2568,7 @@ void ixgbe_set_rx_mode(struct net_device *netdev)
IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
/* reprogram secondary unicast list */
- hw->mac.ops.update_uc_addr_list(hw, &netdev->uc.list);
+ hw->mac.ops.update_uc_addr_list(hw, netdev);
/* reprogram multicast list */
addr_count = netdev->mc_count;
diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h
index b4caa70..0db67c1 100644
--- a/drivers/net/ixgbe/ixgbe_type.h
+++ b/drivers/net/ixgbe/ixgbe_type.h
@@ -30,7 +30,7 @@
#include <linux/types.h>
#include <linux/mdio.h>
-#include <linux/list.h>
+#include <linux/netdevice.h>
/* Vendor ID */
#define IXGBE_INTEL_VENDOR_ID 0x8086
@@ -2405,7 +2405,7 @@ struct ixgbe_mac_operations {
s32 (*set_vmdq)(struct ixgbe_hw *, u32, u32);
s32 (*clear_vmdq)(struct ixgbe_hw *, u32, u32);
s32 (*init_rx_addrs)(struct ixgbe_hw *);
- s32 (*update_uc_addr_list)(struct ixgbe_hw *, struct list_head *);
+ s32 (*update_uc_addr_list)(struct ixgbe_hw *, struct net_device *);
s32 (*update_mc_addr_list)(struct ixgbe_hw *, u8 *, u32,
ixgbe_mc_addr_itr);
s32 (*enable_mc)(struct ixgbe_hw *);
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index af67af5..e2821be 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -55,7 +55,6 @@
#include <linux/types.h>
#include <linux/inet_lro.h>
#include <asm/system.h>
-#include <linux/list.h>
static char mv643xx_eth_driver_name[] = "mv643xx_eth";
static char mv643xx_eth_driver_version[] = "1.4";
@@ -1690,20 +1689,20 @@ static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr)
static u32 uc_addr_filter_mask(struct net_device *dev)
{
- struct netdev_hw_addr *ha;
+ unsigned char *ha;
u32 nibbles;
if (dev->flags & IFF_PROMISC)
return 0;
nibbles = 1 << (dev->dev_addr[5] & 0x0f);
- list_for_each_entry(ha, &dev->uc.list, list) {
- if (memcmp(dev->dev_addr, ha->addr, 5))
+ netdev_for_each_uc_addr(ha, dev) {
+ if (memcmp(dev->dev_addr, ha, 5))
return 0;
- if ((dev->dev_addr[5] ^ ha->addr[5]) & 0xf0)
+ if ((dev->dev_addr[5] ^ ha[5]) & 0xf0)
return 0;
- nibbles |= 1 << (ha->addr[5] & 0x0f);
+ nibbles |= 1 << (ha[5] & 0x0f);
}
return nibbles;
diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index 0e260cf..6dcf735 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -6359,7 +6359,7 @@ static void niu_set_rx_mode(struct net_device *dev)
struct niu *np = netdev_priv(dev);
int i, alt_cnt, err;
struct dev_addr_list *addr;
- struct netdev_hw_addr *ha;
+ unsigned char *ha;
unsigned long flags;
u16 hash[16] = { 0, };
@@ -6372,7 +6372,7 @@ static void niu_set_rx_mode(struct net_device *dev)
if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 0))
np->flags |= NIU_FLAGS_MCAST;
- alt_cnt = dev->uc.count;
+ alt_cnt = netdev_uc_count(dev);
if (alt_cnt > niu_num_alt_addr(np)) {
alt_cnt = 0;
np->flags |= NIU_FLAGS_PROMISC;
@@ -6381,8 +6381,8 @@ static void niu_set_rx_mode(struct net_device *dev)
if (alt_cnt) {
int index = 0;
- list_for_each_entry(ha, &dev->uc.list, list) {
- err = niu_set_alt_mac(np, index, ha->addr);
+ netdev_for_each_uc_addr(ha, dev) {
+ err = niu_set_alt_mac(np, index, ha);
if (err)
printk(KERN_WARNING PFX "%s: Error %d "
"adding alt mac %d\n",
diff --git a/drivers/net/stmmac/dwmac1000_core.c b/drivers/net/stmmac/dwmac1000_core.c
index 928eac0..d66f78b 100644
--- a/drivers/net/stmmac/dwmac1000_core.c
+++ b/drivers/net/stmmac/dwmac1000_core.c
@@ -83,7 +83,7 @@ static void dwmac1000_set_filter(struct net_device *dev)
unsigned int value = 0;
DBG(KERN_INFO "%s: # mcasts %d, # unicast %d\n",
- __func__, dev->mc_count, dev->uc.count);
+ __func__, dev->mc_count, netdev_uc_count(dev));
if (dev->flags & IFF_PROMISC)
value = GMAC_FRAME_FILTER_PR;
@@ -117,17 +117,17 @@ static void dwmac1000_set_filter(struct net_device *dev)
}
/* Handle multiple unicast addresses (perfect filtering)*/
- if (dev->uc.count > GMAC_MAX_UNICAST_ADDRESSES)
+ if (netdev_uc_count(dev) > GMAC_MAX_UNICAST_ADDRESSES)
/* Switch to promiscuous mode is more than 16 addrs
are required */
value |= GMAC_FRAME_FILTER_PR;
else {
int reg = 1;
- struct netdev_hw_addr *ha;
+ unsigned char *ha;
- list_for_each_entry(ha, &dev->uc.list, list) {
- dwmac1000_set_umac_addr(ioaddr, ha->addr, reg);
- reg++;
+ netdev_for_each_uc_addr(ha, dev) {
+ dwmac1000_set_umac_addr(ioaddr, ha, reg);
+ reg++;
}
}
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index c708ecc..20c337f 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -674,7 +674,8 @@ static void virtnet_set_rx_mode(struct net_device *dev)
u8 promisc, allmulti;
struct virtio_net_ctrl_mac *mac_data;
struct dev_addr_list *addr;
- struct netdev_hw_addr *ha;
+ unsigned char *ha;
+ int uc_count;
void *buf;
int i;
@@ -701,8 +702,9 @@ static void virtnet_set_rx_mode(struct net_device *dev)
dev_warn(&dev->dev, "Failed to %sable allmulti mode.\n",
allmulti ? "en" : "dis");
+ uc_count = netdev_uc_count(dev);
/* MAC filter - use one buffer for both lists */
- mac_data = buf = kzalloc(((dev->uc.count + dev->mc_count) * ETH_ALEN) +
+ mac_data = buf = kzalloc(((uc_count + dev->mc_count) * ETH_ALEN) +
(2 * sizeof(mac_data->entries)), GFP_ATOMIC);
if (!buf) {
dev_warn(&dev->dev, "No memory for MAC address buffer\n");
@@ -712,16 +714,16 @@ static void virtnet_set_rx_mode(struct net_device *dev)
sg_init_table(sg, 2);
/* Store the unicast list and count in the front of the buffer */
- mac_data->entries = dev->uc.count;
+ mac_data->entries = uc_count;
i = 0;
- list_for_each_entry(ha, &dev->uc.list, list)
- memcpy(&mac_data->macs[i++][0], ha->addr, ETH_ALEN);
+ netdev_for_each_uc_addr(ha, dev)
+ memcpy(&mac_data->macs[i++][0], ha, ETH_ALEN);
sg_set_buf(&sg[0], mac_data,
- sizeof(mac_data->entries) + (dev->uc.count * ETH_ALEN));
+ sizeof(mac_data->entries) + (uc_count * ETH_ALEN));
/* multicast list and count fill the end */
- mac_data = (void *)&mac_data->macs[dev->uc.count][0];
+ mac_data = (void *)&mac_data->macs[uc_count][0];
mac_data->entries = dev->mc_count;
addr = dev->mc_list;
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index c3258b0..b67f365 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -608,7 +608,7 @@ static void qeth_l2_set_multicast_list(struct net_device *dev)
{
struct qeth_card *card = dev->ml_priv;
struct dev_addr_list *dm;
- struct netdev_hw_addr *ha;
+ unsigned char *ha;
if (card->info.type == QETH_CARD_TYPE_OSN)
return ;
@@ -622,8 +622,8 @@ static void qeth_l2_set_multicast_list(struct net_device *dev)
for (dm = dev->mc_list; dm; dm = dm->next)
qeth_l2_add_mc(card, dm->da_addr, 0);
- list_for_each_entry(ha, &dev->uc.list, list)
- qeth_l2_add_mc(card, ha->addr, 1);
+ netdev_for_each_uc_addr(ha, dev)
+ qeth_l2_add_mc(card, ha, 1);
spin_unlock_bh(&card->mclock);
if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 19aac2b..0d8688d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -263,6 +263,23 @@ struct netdev_hw_addr_list {
int count;
};
+#define netdev_uc_count(dev) ((dev)->uc.count)
+
+#define netdev_get_list_by_addr(a) \
+ (container_of((void *) a, struct netdev_hw_addr, addr)->list)
+
+#define netdev_get_addr_by_list(l) \
+ (list_entry(l, struct netdev_hw_addr, list)->addr)
+
+#define netdev_for_each_addr(a, head) \
+ for (a = netdev_get_addr_by_list((head)->next); \
+ prefetch(netdev_get_list_by_addr(a).next), \
+ &netdev_get_list_by_addr(a) != (head); \
+ a = netdev_get_addr_by_list(netdev_get_list_by_addr(a).next))
+
+#define netdev_for_each_uc_addr(a, dev) \
+ netdev_for_each_addr(a, &dev->uc.list)
+
struct hh_cache {
struct hh_cache *hh_next; /* Next entry */
atomic_t hh_refcnt; /* number of users */
diff --git a/net/core/dev.c b/net/core/dev.c
index 4fad9db..123ffee 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3665,10 +3665,10 @@ void __dev_set_rx_mode(struct net_device *dev)
/* Unicast addresses changes may only happen under the rtnl,
* therefore calling __dev_set_promiscuity here is safe.
*/
- if (dev->uc.count > 0 && !dev->uc_promisc) {
+ if (netdev_uc_count(dev) > 0 && !dev->uc_promisc) {
__dev_set_promiscuity(dev, 1);
dev->uc_promisc = 1;
- } else if (dev->uc.count == 0 && dev->uc_promisc) {
+ } else if (netdev_uc_count(dev) == 0 && dev->uc_promisc) {
__dev_set_promiscuity(dev, -1);
dev->uc_promisc = 0;
}
--
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