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-rw-r--r--drivers/net/tg3.c10
-rw-r--r--drivers/net/tg3.h6
2 files changed, 15 insertions, 1 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 9f6ffffc8376..c3a430cfbe00 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8015,6 +8015,16 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
rdmac_mode |= RDMAC_MODE_IPV6_LSO_EN;
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
+ (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
+ val = tr32(TG3_RDMA_RSRVCTRL_REG);
+ tw32(TG3_RDMA_RSRVCTRL_REG,
+ val | TG3_RDMA_RSRVCTRL_FIFO_OFLW_FIX);
+ }
+
/* Receive/send statistics. */
if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
val = tr32(RCVLPC_STATS_ENABLE);
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 4937bd190964..783cd77b6165 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -1302,7 +1302,11 @@
#define RDMAC_STATUS_FIFOURUN 0x00000080
#define RDMAC_STATUS_FIFOOREAD 0x00000100
#define RDMAC_STATUS_LNGREAD 0x00000200
-/* 0x4808 --> 0x4c00 unused */
+/* 0x4808 --> 0x4900 unused */
+
+#define TG3_RDMA_RSRVCTRL_REG 0x00004900
+#define TG3_RDMA_RSRVCTRL_FIFO_OFLW_FIX 0x00000004
+/* 0x4904 --> 0x4c00 unused */
/* Write DMA control registers */
#define WDMAC_MODE 0x00004c00