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path: root/drivers/net/tg3.c
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Diffstat (limited to 'drivers/net/tg3.c')
-rw-r--r--drivers/net/tg3.c52
1 files changed, 48 insertions, 4 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 96043c5746d0..bc4c62b8e81a 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -64,8 +64,8 @@
#define DRV_MODULE_NAME "tg3"
#define PFX DRV_MODULE_NAME ": "
-#define DRV_MODULE_VERSION "3.90"
-#define DRV_MODULE_RELDATE "April 12, 2008"
+#define DRV_MODULE_VERSION "3.91"
+#define DRV_MODULE_RELDATE "April 18, 2008"
#define TG3_DEF_MAC_MODE 0
#define TG3_DEF_RX_MODE 0
@@ -4135,11 +4135,21 @@ static int tigon3_dma_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
u32 last_plus_one, u32 *start,
u32 base_flags, u32 mss)
{
- struct sk_buff *new_skb = skb_copy(skb, GFP_ATOMIC);
+ struct sk_buff *new_skb;
dma_addr_t new_addr = 0;
u32 entry = *start;
int i, ret = 0;
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
+ new_skb = skb_copy(skb, GFP_ATOMIC);
+ else {
+ int more_headroom = 4 - ((unsigned long)skb->data & 3);
+
+ new_skb = skb_copy_expand(skb,
+ skb_headroom(skb) + more_headroom,
+ skb_tailroom(skb), GFP_ATOMIC);
+ }
+
if (!new_skb) {
ret = -1;
} else {
@@ -4462,7 +4472,9 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
would_hit_hwbug = 0;
- if (tg3_4g_overflow_test(mapping, len))
+ if (tp->tg3_flags3 & TG3_FLG3_5701_DMA_BUG)
+ would_hit_hwbug = 1;
+ else if (tg3_4g_overflow_test(mapping, len))
would_hit_hwbug = 1;
tg3_set_txd(tp, entry, mapping, len, base_flags,
@@ -11339,6 +11351,38 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
}
}
+ if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
+ static struct tg3_dev_id {
+ u32 vendor;
+ u32 device;
+ } bridge_chipsets[] = {
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0 },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1 },
+ { },
+ };
+ struct tg3_dev_id *pci_id = &bridge_chipsets[0];
+ struct pci_dev *bridge = NULL;
+
+ while (pci_id->vendor != 0) {
+ bridge = pci_get_device(pci_id->vendor,
+ pci_id->device,
+ bridge);
+ if (!bridge) {
+ pci_id++;
+ continue;
+ }
+ if (bridge->subordinate &&
+ (bridge->subordinate->number <=
+ tp->pdev->bus->number) &&
+ (bridge->subordinate->subordinate >=
+ tp->pdev->bus->number)) {
+ tp->tg3_flags3 |= TG3_FLG3_5701_DMA_BUG;
+ pci_dev_put(bridge);
+ break;
+ }
+ }
+ }
+
/* The EPB bridge inside 5714, 5715, and 5780 cannot support
* DMA addresses > 40-bit. This bridge may have other additional
* 57xx devices behind it in some 4-port NIC designs for example.