diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 9915734ac3e9..58787ea8b7a4 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -339,6 +339,7 @@ static const struct {
 	{ "dma_write_prioq_full" },
 	{ "rxbds_empty" },
 	{ "rx_discards" },
+	{ "mbuf_lwm_thresh_hit" },
 	{ "rx_errors" },
 	{ "rx_threshold_hit" },
 
@@ -8207,6 +8208,10 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
 	val = BUFMGR_MODE_ENABLE | BUFMGR_MODE_ATTN_ENABLE;
 	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
 		val |= BUFMGR_MODE_NO_TX_UNDERRUN;
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
+	    tp->pci_chip_rev_id == CHIPREV_ID_5719_A0 ||
+	    tp->pci_chip_rev_id == CHIPREV_ID_5720_A0)
+		val |= BUFMGR_MODE_MBLOW_ATTN_ENAB;
 	tw32(BUFMGR_MODE, val);
 	for (i = 0; i < 2000; i++) {
 		if (tr32(BUFMGR_MODE) & BUFMGR_MODE_ENABLE)
@@ -8870,7 +8875,19 @@ static void tg3_periodic_fetch_stats(struct tg3 *tp)
 	TG3_STAT_ADD32(&sp->rx_undersize_packets, MAC_RX_STATS_UNDERSIZE);
 
 	TG3_STAT_ADD32(&sp->rxbds_empty, RCVLPC_NO_RCV_BD_CNT);
-	TG3_STAT_ADD32(&sp->rx_discards, RCVLPC_IN_DISCARDS_CNT);
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717) {
+		TG3_STAT_ADD32(&sp->rx_discards, RCVLPC_IN_DISCARDS_CNT);
+	} else {
+		u32 val = tr32(HOSTCC_FLOW_ATTN);
+		val = (val & HOSTCC_FLOW_ATTN_MBUF_LWM) ? 1 : 0;
+		if (val) {
+			tw32(HOSTCC_FLOW_ATTN, HOSTCC_FLOW_ATTN_MBUF_LWM);
+			sp->rx_discards.low += val;
+			if (sp->rx_discards.low < val)
+				sp->rx_discards.high += 1;
+		}
+		sp->mbuf_lwm_thresh_hit = sp->rx_discards;
+	}
 	TG3_STAT_ADD32(&sp->rx_errors, RCVLPC_IN_ERRORS_CNT);
 }
 
@@ -13973,6 +13990,14 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 	    GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_BX)
 		tp->coalesce_mode |= HOSTCC_MODE_32BYTE;
 
+	/* Set these bits to enable statistics workaround. */
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
+	    tp->pci_chip_rev_id == CHIPREV_ID_5719_A0 ||
+	    tp->pci_chip_rev_id == CHIPREV_ID_5720_A0) {
+		tp->coalesce_mode |= HOSTCC_MODE_ATTN;
+		tp->grc_mode |= GRC_MODE_IRQ_ON_FLOW_ATTN;
+	}
+
 	if (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_USE_PHYLIB;
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 224c3e0ec695..db50bfe046e4 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -147,6 +147,7 @@
 #define  CHIPREV_ID_5717_A0		 0x05717000
 #define  CHIPREV_ID_57765_A0		 0x57785000
 #define  CHIPREV_ID_5719_A0		 0x05719000
+#define  CHIPREV_ID_5720_A0		 0x05720000
 #define  GET_ASIC_REV(CHIP_REV_ID)	((CHIP_REV_ID) >> 12)
 #define   ASIC_REV_5700			 0x07
 #define   ASIC_REV_5701			 0x00
@@ -2602,6 +2603,7 @@ struct tg3_hw_stats {
 	tg3_stat64_t			dma_write_prioq_full;
 	tg3_stat64_t			rxbds_empty;
 	tg3_stat64_t			rx_discards;
+	tg3_stat64_t			mbuf_lwm_thresh_hit;
 	tg3_stat64_t			rx_errors;
 	tg3_stat64_t			rx_threshold_hit;