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brcm47xx: bgmac: fix unaligned accesses to network headers. 

SVN-Revision: 35621
owl
Hauke Mehrtens 2013-02-16 14:38:17 +00:00
parent 99782943d2
commit 283bff02a2
1 changed files with 60 additions and 8 deletions
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68
target/linux/brcm47xx/patches-3.6/760-bgmac-fixes.patch
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@ -1,6 +1,50 @@
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -761,6 +761,26 @@ static void bgmac_cmdcfg_maskset(struct
@@ -301,8 +301,9 @@ static int bgmac_dma_rx_read(struct bgma
bgmac_err(bgmac, "Found poisoned packet at slot %d, DMA issue!\n",
ring->start);
} else {
- new_skb = netdev_alloc_skb(bgmac->net_dev, len);
+ new_skb = netdev_alloc_skb(bgmac->net_dev, len + 2);
if (new_skb) {
+ skb_reserve(new_skb, 2);
skb_put(new_skb, len);
skb_copy_from_linear_data_offset(skb, BGMAC_RX_FRAME_OFFSET,
new_skb->data,
@@ -535,7 +536,7 @@ static void bgmac_dma_init(struct bgmac
* PHY ops
**************************************************/
-u16 bgmac_phy_read(struct bgmac *bgmac, u8 phyaddr, u8 reg)
+static u16 bgmac_phy_read(struct bgmac *bgmac, u8 phyaddr, u8 reg)
{
struct bcma_device *core;
u16 phy_access_addr;
@@ -584,7 +585,7 @@ u16 bgmac_phy_read(struct bgmac *bgmac,
}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphywr */
-void bgmac_phy_write(struct bgmac *bgmac, u8 phyaddr, u8 reg, u16 value)
+static int bgmac_phy_write(struct bgmac *bgmac, u8 phyaddr, u8 reg, u16 value)
{
struct bcma_device *core;
u16 phy_access_addr;
@@ -617,9 +618,13 @@ void bgmac_phy_write(struct bgmac *bgmac
tmp |= value;
bcma_write32(core, phy_access_addr, tmp);
- if (!bgmac_wait_value(core, phy_access_addr, BGMAC_PA_START, 0, 1000))
+ if (!bgmac_wait_value(core, phy_access_addr, BGMAC_PA_START, 0, 1000)) {
bgmac_err(bgmac, "Writing to PHY %d register 0x%X failed\n",
phyaddr, reg);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphyforce */
@@ -761,6 +766,26 @@ static void bgmac_cmdcfg_maskset(struct
udelay(2);
}
@ -27,7 +71,7 @@
#if 0 /* We don't use that regs yet */
static void bgmac_chip_stats_update(struct bgmac *bgmac)
{
@@ -889,8 +909,10 @@ static void bgmac_chip_reset(struct bgma
@@ -889,8 +914,10 @@ static void bgmac_chip_reset(struct bgma
sw_type = et_swtype;
} else if (ci->id == BCMA_CHIP_ID_BCM5357 && ci->pkg == 9) {
sw_type = BGMAC_CHIPCTL_1_SW_TYPE_EPHYRMII;
@ -40,7 +84,7 @@
}
bcma_chipco_chipctl_maskset(cc, 1,
~(BGMAC_CHIPCTL_1_IF_TYPE_MASK |
@@ -948,6 +970,7 @@ static void bgmac_chip_intrs_on(struct b
@@ -948,6 +975,7 @@ static void bgmac_chip_intrs_on(struct b
static void bgmac_chip_intrs_off(struct bgmac *bgmac)
{
bgmac_write(bgmac, BGMAC_INT_MASK, 0);
@ -48,7 +92,7 @@
}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/gmac_enable */
@@ -1004,8 +1027,6 @@ static void bgmac_enable(struct bgmac *b
@@ -1004,8 +1032,6 @@ static void bgmac_enable(struct bgmac *b
static void bgmac_chip_init(struct bgmac *bgmac, bool full_init)
{
struct bgmac_dma_ring *ring;
@ -57,7 +101,7 @@
int i;
/* 1 interrupt per received frame */
@@ -1014,21 +1035,14 @@ static void bgmac_chip_init(struct bgmac
@@ -1014,21 +1040,14 @@ static void bgmac_chip_init(struct bgmac
/* Enable 802.3x tx flow control (honor received PAUSE frames) */
bgmac_cmdcfg_maskset(bgmac, ~BGMAC_CMDCFG_RPI, 0, true);
@ -83,7 +127,7 @@
bgmac_write(bgmac, BGMAC_RXMAX_LENGTH, 32 + ETHER_MAX_LEN);
@@ -1160,6 +1174,19 @@ static netdev_tx_t bgmac_start_xmit(stru
@@ -1160,6 +1179,19 @@ static netdev_tx_t bgmac_start_xmit(stru
return bgmac_dma_tx_add(bgmac, ring, skb);
}
@ -103,7 +147,7 @@
static int bgmac_ioctl(struct net_device *net_dev, struct ifreq *ifr, int cmd)
{
struct bgmac *bgmac = netdev_priv(net_dev);
@@ -1190,7 +1217,9 @@ static const struct net_device_ops bgmac
@@ -1190,7 +1222,9 @@ static const struct net_device_ops bgmac
.ndo_open = bgmac_open,
.ndo_stop = bgmac_stop,
.ndo_start_xmit = bgmac_start_xmit,
@ -114,7 +158,7 @@
.ndo_do_ioctl = bgmac_ioctl,
};
@@ -1290,6 +1319,12 @@ static int bgmac_probe(struct bcma_devic
@@ -1290,6 +1324,12 @@ static int bgmac_probe(struct bcma_devic
return -ENOTSUPP;
}
@ -138,3 +182,11 @@
#define BGMAC_CHIPCTL_1_RXC_DLL_BYPASS 0x00010000
#define BGMAC_SPEED_10 0x0001
@@ -450,7 +450,4 @@ static inline void bgmac_set(struct bgma
bgmac_maskset(bgmac, offset, ~0, set);
}
-u16 bgmac_phy_read(struct bgmac *bgmac, u8 phyaddr, u8 reg);
-void bgmac_phy_write(struct bgmac *bgmac, u8 phyaddr, u8 reg, u16 value);
-
#endif /* _BGMAC_H */