diff options
| author | Matt Carlson <mcarlson@broadcom.com> | 2009-11-02 12:33:33 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-02 23:38:58 -0800 |
| commit | 0e1406dd404ce55dbe8d68b4b5e2aed7e5c75fdb (patch) | |
| tree | 4af423112c4c0c6afdcdc96350a5d23af54c7455 | |
| parent | 01e6b953ada927093c4d162f634200a20323c537 (diff) | |
tg3: Assign flags to fixes in start_xmit_dma_bug
This patch adds a flag for each bug workaround in
tg3_start_xmit_dma_bug(). This is prep work for the following patch.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/tg3.c | 26 | ||||
| -rw-r--r-- | drivers/net/tg3.h | 2 |
2 files changed, 21 insertions, 7 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index ba5d3fe753b..da808250c86 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -5124,7 +5124,8 @@ static int tigon3_dma_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb, /* Make sure new skb does not cross any 4G boundaries. * Drop the packet if it does. */ - if (ret || tg3_4g_overflow_test(new_addr, new_skb->len)) { + if (ret || ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) && + tg3_4g_overflow_test(new_addr, new_skb->len))) { if (!ret) skb_dma_unmap(&tp->pdev->dev, new_skb, DMA_TO_DEVICE); @@ -5459,9 +5460,15 @@ static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb, would_hit_hwbug = 0; - if (tp->tg3_flags3 & TG3_FLG3_5701_DMA_BUG) + if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) && + tg3_4g_overflow_test(mapping, len)) + would_hit_hwbug = 1; + + if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) && + tg3_40bit_overflow_test(tp, mapping, len)) would_hit_hwbug = 1; - else if (tg3_4g_overflow_test(mapping, len)) + + if (tp->tg3_flags3 & TG3_FLG3_5701_DMA_BUG) would_hit_hwbug = 1; tg3_set_txd(tnapi, entry, mapping, len, base_flags, @@ -5482,10 +5489,12 @@ static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb, tnapi->tx_buffers[entry].skb = NULL; - if (tg3_4g_overflow_test(mapping, len)) + if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) && + tg3_4g_overflow_test(mapping, len)) would_hit_hwbug = 1; - if (tg3_40bit_overflow_test(tp, mapping, len)) + if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) && + tg3_40bit_overflow_test(tp, mapping, len)) would_hit_hwbug = 1; if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) @@ -12610,12 +12619,15 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) tp->irq_max = 1; -#ifdef TG3_NAPI if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) { tp->tg3_flags |= TG3_FLAG_SUPPORT_MSIX; tp->irq_max = TG3_IRQ_MAX_VECS; } -#endif + + if (!(tp->tg3_flags3 & TG3_FLG3_5755_PLUS)) { + tp->tg3_flags3 |= TG3_FLG3_4G_DMA_BNDRY_BUG; + tp->tg3_flags3 |= TG3_FLG3_40BIT_DMA_LIMIT_BUG; + } if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) || (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) || diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index bab7940158e..b603810b4e9 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -2759,6 +2759,8 @@ struct tg3 { #define TG3_FLG3_TOGGLE_10_100_L1PLLPD 0x00008000 #define TG3_FLG3_PHY_IS_FET 0x00010000 #define TG3_FLG3_ENABLE_RSS 0x00020000 +#define TG3_FLG3_4G_DMA_BNDRY_BUG 0x00080000 +#define TG3_FLG3_40BIT_DMA_LIMIT_BUG 0x00100000 struct timer_list timer; u16 timer_counter; |