From 3906969189a409e590a51b18c86a92d0506c9372 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Mon, 13 Feb 2012 15:20:08 +0000 Subject: [PATCH] tg3: Disable new DMA engine for 57766 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 Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index d418f954c72d..0a765f109cc1 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -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 || -- 2.30.2