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tg3: Disable new DMA engine for 57766

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A bug was found in the new DMA engine for the 57766.  This patch
disables it, which causes the device to fallback to the old DMA engine.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2012-02-13 15:20:08 +00:00 committed by David S. Miller
parent 16dc459cee
commit 3906969189
1 changed files with 0 additions and 5 deletions
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5
drivers/net/ethernet/broadcom/tg3.c
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@ -8896,9 +8896,6 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
if (tg3_flag(tp, PCI_EXPRESS))
rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57766)
rdmac_mode |= RDMAC_MODE_JMB_2K_MMRR;
if (tg3_flag(tp, HW_TSO_1) ||
tg3_flag(tp, HW_TSO_2) ||
tg3_flag(tp, HW_TSO_3))
@ -14190,8 +14187,6 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
tp->dma_limit = TG3_TX_BD_DMA_MAX_4K;
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57766)
tp->dma_limit = TG3_TX_BD_DMA_MAX_2K;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||