---

yaml --- r: 320517 b: refs/heads/master c: 091f0ea h: refs/heads/master i: 320515: 420ff44 v: v3
git-mirror · Jul 30, 2012 · ce57074 · ce57074
1 parent b3c7da0
commit ce57074
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Showing 3 changed files with 30 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 10ce95d6ef36c65df7dcd3b8fcf86913f8b298bd
+refs/heads/master: 091f0ea30074bc43f9250961b3247af713024bc6
diff --git a/trunk/drivers/net/ethernet/broadcom/tg3.c b/trunk/drivers/net/ethernet/broadcom/tg3.c
@@ -9276,6 +9276,19 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
 	tw32_f(RDMAC_MODE, rdmac_mode);
 	udelay(40);
 
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
+		for (i = 0; i < TG3_NUM_RDMA_CHANNELS; i++) {
+			if (tr32(TG3_RDMA_LENGTH + (i << 2)) > TG3_MAX_MTU(tp))
+				break;
+		}
+		if (i < TG3_NUM_RDMA_CHANNELS) {
+			val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL);
+			val |= TG3_LSO_RD_DMA_TX_LENGTH_WA;
+			tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val);
+			tg3_flag_set(tp, 5719_RDMA_BUG);
+		}
+	}
+
 	tw32(RCVDCC_MODE, RCVDCC_MODE_ENABLE | RCVDCC_MODE_ATTN_ENABLE);
 	if (!tg3_flag(tp, 5705_PLUS))
 		tw32(MBFREE_MODE, MBFREE_MODE_ENABLE);
@@ -9635,6 +9648,16 @@ static void tg3_periodic_fetch_stats(struct tg3 *tp)
 	TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
 	TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
 	TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
+	if (unlikely(tg3_flag(tp, 5719_RDMA_BUG) &&
+		     (sp->tx_ucast_packets.low + sp->tx_mcast_packets.low +
+		      sp->tx_bcast_packets.low) > TG3_NUM_RDMA_CHANNELS)) {
+		u32 val;
+
+		val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL);
+		val &= ~TG3_LSO_RD_DMA_TX_LENGTH_WA;
+		tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val);
+		tg3_flag_clear(tp, 5719_RDMA_BUG);
+	}
 
 	TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
 	TG3_STAT_ADD32(&sp->rx_fragments, MAC_RX_STATS_FRAGMENTS);

diff --git a/trunk/drivers/net/ethernet/broadcom/tg3.h b/trunk/drivers/net/ethernet/broadcom/tg3.h
@@ -1376,7 +1376,11 @@
 #define TG3_LSO_RD_DMA_CRPTEN_CTRL	0x00004910
 #define TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_BD_4K	 0x00030000
 #define TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_LSO_4K	 0x000c0000
-/* 0x4914 --> 0x4c00 unused */
+#define TG3_LSO_RD_DMA_TX_LENGTH_WA	 0x02000000
+/* 0x4914 --> 0x4be0 unused */
+
+#define TG3_NUM_RDMA_CHANNELS		4
+#define TG3_RDMA_LENGTH			0x00004be0
 
 /* Write DMA control registers */
 #define WDMAC_MODE			0x00004c00
@@ -2959,6 +2963,7 @@ enum TG3_FLAGS {
 	TG3_FLAG_L1PLLPD_EN,
 	TG3_FLAG_APE_HAS_NCSI,
 	TG3_FLAG_4K_FIFO_LIMIT,
+	TG3_FLAG_5719_RDMA_BUG,
 	TG3_FLAG_RESET_TASK_PENDING,
 	TG3_FLAG_5705_PLUS,
 	TG3_FLAG_IS_5788,