summaryrefslogtreecommitdiffstats
path: root/drivers/net/tg3.c
diff options
context:
space:
mode:
authorMatt Carlson <mcarlson@broadcom.com>2011-04-25 12:42:45 +0000
committerDavid S. Miller <davem@davemloft.net>2011-04-26 00:07:01 -0700
commit0aebff4871d26410ae485b521870bb0ffe1736f0 (patch)
tree48b869f07b111561307a26199bcec47b473c548d /drivers/net/tg3.c
parentbf734843120b905bacc3d24c88d7455ae70bf6e1 (diff)
downloadop-kernel-dev-0aebff4871d26410ae485b521870bb0ffe1736f0.zip
op-kernel-dev-0aebff4871d26410ae485b521870bb0ffe1736f0.tar.gz
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: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tg3.c')
-rw-r--r--drivers/net/tg3.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 693f36e..a72d031 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8198,6 +8198,9 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
~DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0)
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);
} else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) {
OpenPOWER on IntegriCloud