Commit 0aebff48 authored by Matt Carlson's avatar Matt Carlson Committed by David S. Miller

tg3: Fix int generation hw bug for 5719 / 5720

On the 5719 and 5720, there is a bug where the hardware will
misinterpret a status tag update and leave interrupts permanently
disabled.  This patch enables a hardware fix that works around the
issue.
Signed-off-by: default avatarMatt Carlson <mcarlson@broadcom.com>
Reviewed-by: default avatarMichael Chan <mchan@broadcom.com>
Reviewed-by: default avatarBenjamin Li <benli@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bf734843
...@@ -8198,6 +8198,9 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) ...@@ -8198,6 +8198,9 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
~DMA_RWCTRL_DIS_CACHE_ALIGNMENT; ~DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0)
val &= ~DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK; val &= ~DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK;
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57765 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717)
val |= DMA_RWCTRL_TAGGED_STAT_WA;
tw32(TG3PCI_DMA_RW_CTRL, val | tp->dma_rwctrl); tw32(TG3PCI_DMA_RW_CTRL, val | tp->dma_rwctrl);
} else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 && } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) { GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) {
......
...@@ -188,6 +188,7 @@ ...@@ -188,6 +188,7 @@
#define METAL_REV_B2 0x02 #define METAL_REV_B2 0x02
#define TG3PCI_DMA_RW_CTRL 0x0000006c #define TG3PCI_DMA_RW_CTRL 0x0000006c
#define DMA_RWCTRL_DIS_CACHE_ALIGNMENT 0x00000001 #define DMA_RWCTRL_DIS_CACHE_ALIGNMENT 0x00000001
#define DMA_RWCTRL_TAGGED_STAT_WA 0x00000080
#define DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK 0x00000380 #define DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK 0x00000380
#define DMA_RWCTRL_READ_BNDRY_MASK 0x00000700 #define DMA_RWCTRL_READ_BNDRY_MASK 0x00000700
#define DMA_RWCTRL_READ_BNDRY_DISAB 0x00000000 #define DMA_RWCTRL_READ_BNDRY_DISAB 0x00000000
......
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