[TIGON3] Initial TCP segmentation offload support.

drivers/net/tg3.c

@@ -2169,11 +2169,11 @@ static void tg3_set_txd_addr(struct tg3 *tp, int entry, dma_addr_t mapping)
 }
 #endif
 
-static void tg3_set_txd(struct tg3 *, int, dma_addr_t, int, u32, int);
+static void tg3_set_txd(struct tg3 *, int, dma_addr_t, int, u32, u32);
 
 static int tigon3_4gb_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
 				       u32 guilty_entry, int guilty_len,
-				       u32 last_plus_one, u32 *start)
+				       u32 last_plus_one, u32 *start, u32 mss)
 {
 	dma_addr_t new_addr;
 	u32 entry = *start;
@@ -2226,7 +2226,7 @@ static int tigon3_4gb_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
 				  PCI_DMA_TODEVICE);
 	tg3_set_txd(tp, entry, new_addr, new_skb->len,
 		    (skb->ip_summed == CHECKSUM_HW) ?
-		    TXD_FLAG_TCPUDP_CSUM : 0, 1);
+		    TXD_FLAG_TCPUDP_CSUM : 0, 1 | (mss << 1));
 	*start = NEXT_TX(entry);
 
 	/* Now clean up the sw ring entries. */
@@ -2258,29 +2258,26 @@ static int tigon3_4gb_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
 
 static void tg3_set_txd(struct tg3 *tp, int entry,
 			dma_addr_t mapping, int len, u32 flags,
-			int is_end)
+			u32 mss_and_is_end)
 {
-#if TG3_VLAN_TAG_USED
-	u16 vlan_tag = 0;
-#endif
+	int is_end = (mss_and_is_end & 0x1);
+	u32 mss = (mss_and_is_end >> 1);
+	u32 vlan_tag = 0;
 
 	if (is_end)
 		flags |= TXD_FLAG_END;
-#if TG3_VLAN_TAG_USED
 	if (flags & TXD_FLAG_VLAN) {
 		vlan_tag = flags >> 16;
 		flags &= 0xffff;
 	}
-#endif
+	vlan_tag |= (mss << TXD_MSS_SHIFT);
 	if (tp->tg3_flags & TG3_FLAG_HOST_TXDS) {
 		struct tg3_tx_buffer_desc *txd = &tp->tx_ring[entry];
 
 		txd->addr_hi = ((u64) mapping >> 32);
 		txd->addr_lo = ((u64) mapping & 0xffffffff);
 		txd->len_flags = (len << TXD_LEN_SHIFT) | flags;
-#if TG3_VLAN_TAG_USED
 		txd->vlan_tag = vlan_tag << TXD_VLAN_TAG_SHIFT;
-#endif
 	} else {
 		unsigned long txd;
 
@@ -2297,9 +2294,7 @@ static void tg3_set_txd(struct tg3 *tp, int entry,
 		writel(((u64) mapping & 0xffffffff),
 		       txd + TXD_ADDR + TG3_64BIT_REG_LOW);
 		writel(len << TXD_LEN_SHIFT | flags, txd + TXD_LEN_FLAGS);
-#if TG3_VLAN_TAG_USED
 		writel(vlan_tag << TXD_VLAN_TAG_SHIFT, txd + TXD_VLAN_TAG);
-#endif
 	}
 }
 
@@ -2317,7 +2312,7 @@ static int tg3_start_xmit_4gbug(struct sk_buff *skb, struct net_device *dev)
 	struct tg3 *tp = dev->priv;
 	dma_addr_t mapping;
 	unsigned int i;
-	u32 len, entry, base_flags;
+	u32 len, entry, base_flags, mss;
 	int would_hit_hwbug;
 
 	len = (skb->len - skb->data_len);
@@ -2341,6 +2336,13 @@ static int tg3_start_xmit_4gbug(struct sk_buff *skb, struct net_device *dev)
 	base_flags = 0;
 	if (skb->ip_summed == CHECKSUM_HW)
 		base_flags |= TXD_FLAG_TCPUDP_CSUM;
+#ifdef NETIF_F_TSO
+	if ((mss = skb_shinfo(skb)->tso_size) != 0)
+		base_flags |= (TXD_FLAG_CPU_PRE_DMA |
+			       TXD_FLAG_CPU_POST_DMA);
+#else
+	mss = 0;
+#endif
 #if TG3_VLAN_TAG_USED
 	if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
 		base_flags |= (TXD_FLAG_VLAN |
@@ -2359,7 +2361,7 @@ static int tg3_start_xmit_4gbug(struct sk_buff *skb, struct net_device *dev)
 		would_hit_hwbug = entry + 1;
 
 	tg3_set_txd(tp, entry, mapping, len, base_flags,
-		    (skb_shinfo(skb)->nr_frags == 0));
+		    (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
 
 	entry = NEXT_TX(entry);
 
@@ -2388,7 +2390,7 @@ static int tg3_start_xmit_4gbug(struct sk_buff *skb, struct net_device *dev)
 			}
 
 			tg3_set_txd(tp, entry, mapping, len,
-				    base_flags, (i == last));
+				    base_flags, (i == last) | (mss << 1));
 
 			entry = NEXT_TX(entry);
 		}
@@ -2424,7 +2426,7 @@ static int tg3_start_xmit_4gbug(struct sk_buff *skb, struct net_device *dev)
 		if (tigon3_4gb_hwbug_workaround(tp, skb,
 						entry, len,
 						last_plus_one,
-						&start))
+						&start, mss))
 			goto out_unlock;
 
 		entry = start;
@@ -2476,7 +2478,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct tg3 *tp = dev->priv;
 	dma_addr_t mapping;
-	u32 len, entry, base_flags;
+	u32 len, entry, base_flags, mss;
 
 	len = (skb->len - skb->data_len);
 
@@ -2499,6 +2501,13 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	base_flags = 0;
 	if (skb->ip_summed == CHECKSUM_HW)
 		base_flags |= TXD_FLAG_TCPUDP_CSUM;
+#ifdef NETIF_F_TSO
+	if ((mss = skb_shinfo(skb)->tso_size) != 0)
+		base_flags |= (TXD_FLAG_CPU_PRE_DMA |
+			       TXD_FLAG_CPU_POST_DMA);
+#else
+	mss = 0;
+#endif
 #if TG3_VLAN_TAG_USED
 	if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
 		base_flags |= (TXD_FLAG_VLAN |
@@ -2512,7 +2521,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	pci_unmap_addr_set(&tp->tx_buffers[entry], mapping, mapping);
 
 	tg3_set_txd(tp, entry, mapping, len, base_flags,
-		    (skb_shinfo(skb)->nr_frags == 0));
+		    (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
 
 	entry = NEXT_TX(entry);
 
@@ -2535,7 +2544,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			pci_unmap_addr_set(&tp->tx_buffers[entry], mapping, mapping);
 
 			tg3_set_txd(tp, entry, mapping, len,
-				    base_flags, (i == last));
+				    base_flags, (i == last) | (mss << 1));
 
 			entry = NEXT_TX(entry);
 		}
@@ -3295,9 +3304,21 @@ static int tg3_reset_cpu(struct tg3 *tp, u32 offset)
 	return 0;
 }
 
+struct fw_info {
+	unsigned int text_base;
+	unsigned int text_len;
+	u32 *text_data;
+	unsigned int rodata_base;
+	unsigned int rodata_len;
+	u32 *rodata_data;
+	unsigned int data_base;
+	unsigned int data_len;
+	u32 *data_data;
+};
+
 /* tp->lock is held. */
 static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_base,
-				 int cpu_scratch_size)
+				 int cpu_scratch_size, struct fw_info *info)
 {
 	int err, i;
 
@@ -3309,21 +3330,24 @@ static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_b
 		tg3_write_indirect_reg32(tp, cpu_scratch_base + i, 0);
 	tw32(cpu_base + CPU_STATE, 0xffffffff);
 	tw32(cpu_base + CPU_MODE, tr32(cpu_base+CPU_MODE)|CPU_MODE_HALT);
-	for (i = 0; i < (TG3_FW_TEXT_LEN / sizeof(u32)); i++)
+	for (i = 0; i < (info->text_len / sizeof(u32)); i++)
 		tg3_write_indirect_reg32(tp, (cpu_scratch_base +
-					      (TG3_FW_TEXT_ADDR & 0xffff) +
+					      (info->text_base & 0xffff) +
 					      (i * sizeof(u32))),
-					 t3FwText[i]);
-	for (i = 0; i < (TG3_FW_RODATA_LEN / sizeof(u32)); i++)
+					 (info->text_data ?
+					  info->text_data[i] : 0));
+	for (i = 0; i < (info->rodata_len / sizeof(u32)); i++)
 		tg3_write_indirect_reg32(tp, (cpu_scratch_base +
-					      (TG3_FW_RODATA_ADDR & 0xffff) +
+					      (info->rodata_base & 0xffff) +
 					      (i * sizeof(u32))),
-					 t3FwRodata[i]);
-	for (i = 0; i < (TG3_FW_DATA_LEN / sizeof(u32)); i++)
+					 (info->rodata_data ?
+					  info->rodata_data[i] : 0));
+	for (i = 0; i < (info->data_len / sizeof(u32)); i++)
 		tg3_write_indirect_reg32(tp, (cpu_scratch_base +
-					      (TG3_FW_DATA_ADDR & 0xffff) +
+					      (info->data_base & 0xffff) +
 					      (i * sizeof(u32))),
-					 0);
+					 (info->data_data ?
+					  info->data_data[i] : 0));
 
 	return 0;
 }
@@ -3331,15 +3355,28 @@ static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_b
 /* tp->lock is held. */
 static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
 {
+	struct fw_info info;
 	int err, i;
 
+	info.text_base = TG3_FW_TEXT_ADDR;
+	info.text_len = TG3_FW_TEXT_LEN;
+	info.text_data = &tg3FwText[0];
+	info.rodata_base = TG3_FW_RODATA_ADDR;
+	info.rodata_len = TG3_FW_RODATA_LEN;
+	info.rodata_data = &tg3FwRodata[0];
+	info.data_base = TG3_FW_DATA_ADDR;
+	info.data_len = TG3_FW_DATA_LEN;
+	info.data_data = NULL;
+
 	err = tg3_load_firmware_cpu(tp, RX_CPU_BASE,
-				    RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE);
+				    RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE,
+				    &info);
 	if (err)
 		return err;
 
 	err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
-				    TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE);
+				    TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
+				    &info);
 	if (err)
 		return err;
 
@@ -3377,6 +3414,336 @@ static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
 	return 0;
 }
 
+#ifdef NETIF_F_TSO
+
+#define TG3_TSO_FW_RELEASE_MAJOR	0x1
+#define TG3_TSO_FW_RELASE_MINOR		0x8
+#define TG3_TSO_FW_RELEASE_FIX		0x0
+#define TG3_TSO_FW_START_ADDR		0x08000000
+#define TG3_TSO_FW_TEXT_ADDR		0x08000000
+#define TG3_TSO_FW_TEXT_LEN		0x1650
+#define TG3_TSO_FW_RODATA_ADDR		0x08001650
+#define TG3_TSO_FW_RODATA_LEN		0x30
+#define TG3_TSO_FW_DATA_ADDR		0x080016a0
+#define TG3_TSO_FW_DATA_LEN		0x20
+#define TG3_TSO_FW_SBSS_ADDR		0x080016c0
+#define TG3_TSO_FW_SBSS_LEN		0x14
+#define TG3_TSO_FW_BSS_ADDR		0x080016e0
+#define TG3_TSO_FW_BSS_LEN		0x8fc
+
+static u32 tg3TsoFwText[] = {
+	0x00000000, 0x10000003, 0x00000000, 0x0000000d, 0x0000000d, 0x3c1d0800,
+	0x37bd4000, 0x03a0f021, 0x3c100800, 0x26100000, 0x0e000010, 0x00000000,
+	0x0000000d, 0x00000000, 0x00000000, 0x00000000, 0x27bdffe0, 0x3c1bc000,
+	0xafbf0018, 0x0e000058, 0xaf60680c, 0x3c040800, 0x24841650, 0x03602821,
+	0x24060001, 0x24070004, 0xafa00010, 0x0e00006c, 0xafa00014, 0x8f625c50,
+	0x34420001, 0xaf625c50, 0x8f625c90, 0x34420001, 0xaf625c90, 0x2402ffff,
+	0x0e000098, 0xaf625404, 0x8fbf0018, 0x03e00008, 0x27bd0020, 0x00000000,
+	0x00000000, 0x00000000, 0x24030b60, 0x24050fff, 0xac000b50, 0x00002021,
+	0xac640000, 0x24630004, 0x0065102b, 0x1440fffc, 0x24840001, 0x24030b60,
+	0x0065102b, 0x10400011, 0x00002021, 0x24090b54, 0x3c06dead, 0x34c6beef,
+	0x24080b58, 0x24070b5c, 0x8c620000, 0x50440006, 0x24630004, 0xad260000,
+	0x8c620000, 0xace40000, 0xad020000, 0x24630004, 0x0065102b, 0x1440fff6,
+	0x24840001, 0x03e00008, 0x00000000, 0x27bdfff8, 0x18800009, 0x00002821,
+	0x8f63680c, 0x8f62680c, 0x1043fffe, 0x00000000, 0x24a50001, 0x00a4102a,
+	0x1440fff9, 0x00000000, 0x03e00008, 0x27bd0008, 0x3c020800, 0x34423000,
+	0x3c030800, 0x34633000, 0x3c040800, 0x348437ff, 0x3c010800, 0xac2216c4,
+	0x24020040, 0x3c010800, 0xac2216c8, 0x3c010800, 0xac2016c0, 0xac600000,
+	0x24630004, 0x0083102b, 0x5040fffd, 0xac600000, 0x03e00008, 0x00000000,
+	0x00804821, 0x8faa0010, 0x3c020800, 0x8c4216c0, 0x3c040800, 0x8c8416c8,
+	0x8fab0014, 0x24430001, 0x0044102b, 0x3c010800, 0xac2316c0, 0x14400003,
+	0x00004021, 0x3c010800, 0xac2016c0, 0x3c020800, 0x8c4216c0, 0x3c030800,
+	0x8c6316c4, 0x91240000, 0x00021140, 0x00431021, 0x00481021, 0x25080001,
+	0xa0440000, 0x29020008, 0x1440fff4, 0x25290001, 0x3c020800, 0x8c4216c0,
+	0x3c030800, 0x8c6316c4, 0x8f64680c, 0x00021140, 0x00431021, 0xac440008,
+	0xac45000c, 0xac460010, 0xac470014, 0xac4a0018, 0x03e00008, 0xac4b001c,
+	0x00000000, 0x00000000, 0x27bdffe0, 0xafbf0018, 0xafb10014, 0x0e0000b6,
+	0xafb00010, 0x24110001, 0x8f706820, 0x32020100, 0x10400003, 0x00000000,
+	0x0e000127, 0x00000000, 0x8f706820, 0x32022000, 0x10400004, 0x32020001,
+	0x0e00025a, 0x24040001, 0x32020001, 0x10400003, 0x00000000, 0x0e0000e6,
+	0x00000000, 0x0a00009e, 0xaf715028, 0x8fbf0018, 0x8fb10014, 0x8fb00010,
+	0x03e00008, 0x27bd0020, 0x27bdffe0, 0x3c040800, 0x24841660, 0x00002821,
+	0x00003021, 0x00003821, 0xafbf0018, 0xafa00010, 0x0e00006c, 0xafa00014,
+	0x3c010800, 0xa4201fb8, 0x3c010800, 0xa02016f8, 0x3c010800, 0xac2016fc,
+	0x3c010800, 0xac201700, 0x3c010800, 0xac201704, 0x3c010800, 0xac20170c,
+	0x3c010800, 0xac201718, 0x3c010800, 0xac20171c, 0x8f624434, 0x3c010800,
+	0xac2216e8, 0x8f624438, 0x3c010800, 0xac2216ec, 0x8f624410, 0x3c010800,
+	0xac2016e0, 0x3c010800, 0xac2016e4, 0x3c010800, 0xac201fc0, 0x3c010800,
+	0xac201f68, 0x3c010800, 0xac201f6c, 0x3c010800, 0xac2216f0, 0x8fbf0018,
+	0x03e00008, 0x27bd0020, 0x27bdffe0, 0x3c040800, 0x2484166c, 0x00002821,
+	0x00003021, 0x00003821, 0xafbf0018, 0xafa00010, 0x0e00006c, 0xafa00014,
+	0x3c040800, 0x24841660, 0x00002821, 0x00003021, 0x00003821, 0xafa00010,
+	0x0e00006c, 0xafa00014, 0x3c010800, 0xa4201fb8, 0x3c010800, 0xa02016f8,
+	0x3c010800, 0xac2016fc, 0x3c010800, 0xac201700, 0x3c010800, 0xac201704,
+	0x3c010800, 0xac20170c, 0x3c010800, 0xac201718, 0x3c010800, 0xac20171c,
+	0x8f624434, 0x3c010800, 0xac2216e8, 0x8f624438, 0x3c010800, 0xac2216ec,
+	0x8f624410, 0x3c010800, 0xac2016e0, 0x3c010800, 0xac2016e4, 0x3c010800,
+	0xac201fc0, 0x3c010800, 0xac201f68, 0x3c010800, 0xac201f6c, 0x3c010800,
+	0xac2216f0, 0x0e000120, 0x00002021, 0x8fbf0018, 0x03e00008, 0x27bd0020,
+	0x24020001, 0x8f636820, 0x00821004, 0x00021027, 0x00621824, 0x03e00008,
+	0xaf636820, 0x27bdffd0, 0x3c0300ff, 0xafbf002c, 0xafb60028, 0xafb50024,
+	0xafb40020, 0xafb3001c, 0xafb20018, 0xafb10014, 0xafb00010, 0x8f665c5c,
+	0x3c040800, 0x2484171c, 0x8c820000, 0x3463fff8, 0x14460005, 0x00c38824,
+	0x3c020800, 0x904216f8, 0x14400115, 0x00000000, 0x00111902, 0x306300ff,
+	0x30c20003, 0x000211c0, 0x00623825, 0x00e02821, 0x00061602, 0xac860000,
+	0x3c030800, 0x906316f8, 0x3044000f, 0x1460002b, 0x00804021, 0x24020001,
+	0x3c010800, 0xa02216f8, 0x00071100, 0x00821025, 0x3c010800, 0xac2016fc,
+	0x3c010800, 0xac201700, 0x3c010800, 0xac201704, 0x3c010800, 0xac20170c,
+	0x3c010800, 0xac201718, 0x3c010800, 0xac201710, 0x3c010800, 0xac201714,
+	0x3c010800, 0xa4221fb8, 0x9623000c, 0x30628000, 0x10400008, 0x30627fff,
+	0x2442003e, 0x3c010800, 0xa42216f6, 0x24020001, 0x3c010800, 0x0a00016e,
+	0xac221fd4, 0x24620036, 0x3c010800, 0xa42216f6, 0x3c010800, 0xac201fd4,
+	0x3c010800, 0xac201fd0, 0x3c010800, 0x0a000176, 0xac201fd8, 0x9622000c,
+	0x3c010800, 0xa4221fcc, 0x3c040800, 0x248416fc, 0x8c820000, 0x00021100,
+	0x3c010800, 0x00220821, 0xac311728, 0x8c820000, 0x00021100, 0x3c010800,
+	0x00220821, 0xac26172c, 0x8c820000, 0x24a30001, 0x306701ff, 0x00021100,
+	0x3c010800, 0x00220821, 0xac271730, 0x8c820000, 0x00021100, 0x3c010800,
+	0x00220821, 0xac281734, 0x96230008, 0x3c020800, 0x8c42170c, 0x00432821,
+	0x3c010800, 0xac25170c, 0x9622000a, 0x30420004, 0x14400019, 0x00071100,
+	0x3c02c000, 0x00c21825, 0xaf635c5c, 0x8f625c50, 0x30420002, 0x1440fffc,
+	0x00000000, 0x8f630c14, 0x3063000f, 0x2c620002, 0x1440001e, 0x00000000,
+	0x8f630c14, 0x3c020800, 0x8c4216b4, 0x3063000f, 0x24420001, 0x3c010800,
+	0xac2216b4, 0x2c620002, 0x1040fff7, 0x00000000, 0x0a0001c1, 0x00000000,
+	0x3c030800, 0x8c6316e0, 0x3c040800, 0x948416f4, 0x01021025, 0x3c010800,
+	0xa4221fba, 0x24020001, 0x3c010800, 0xac221718, 0x24630001, 0x0085202a,
+	0x3c010800, 0x10800003, 0xac2316e0, 0x3c010800, 0xa42516f4, 0x3c030800,
+	0x246316fc, 0x8c620000, 0x24420001, 0xac620000, 0x28420080, 0x14400005,
+	0x24020001, 0x0e0002df, 0x24040002, 0x0a000250, 0x00000000, 0x3c030800,
+	0x906316f8, 0x1462007c, 0x24020003, 0x3c160800, 0x96d616f6, 0x3c050800,
+	0x8ca5170c, 0x32c4ffff, 0x00a4102a, 0x14400078, 0x00000000, 0x3c020800,
+	0x8c421718, 0x10400005, 0x32c2ffff, 0x14a40003, 0x00000000, 0x3c010800,
+	0xac231fd0, 0x10400062, 0x00009021, 0x0040a021, 0x3c150800, 0x26b51700,
+	0x26b30010, 0x8ea20000, 0x00028100, 0x3c110800, 0x02308821, 0x0e0002e1,
+	0x8e311728, 0x00403021, 0x10c00059, 0x00000000, 0x9628000a, 0x31020040,
+	0x10400004, 0x2407180c, 0x8e22000c, 0x2407188c, 0xacc20018, 0x31021000,
+	0x10400004, 0x34e32000, 0x00081040, 0x3042c000, 0x00623825, 0x3c030800,
+	0x00701821, 0x8c631730, 0x3c020800, 0x00501021, 0x8c421734, 0x00031d00,
+	0x00021400, 0x00621825, 0xacc30014, 0x8ea30004, 0x96220008, 0x00432023,
+	0x3242ffff, 0x3083ffff, 0x00431021, 0x0282102a, 0x14400002, 0x02d22823,
+	0x00802821, 0x8e620000, 0x30a4ffff, 0x00441021, 0xae620000, 0x8e220000,
+	0xacc20000, 0x8e220004, 0x8e63fff4, 0x00431021, 0xacc20004, 0xa4c5000e,
+	0x8e62fff4, 0x00441021, 0xae62fff4, 0x96230008, 0x0043102a, 0x14400005,
+	0x02459021, 0x8e62fff0, 0xae60fff4, 0x24420001, 0xae62fff0, 0xacc00008,
+	0x3242ffff, 0x14540008, 0x24020305, 0x31020080, 0x54400001, 0x34e70010,
+	0x24020905, 0xa4c2000c, 0x0a000233, 0x34e70020, 0xa4c2000c, 0x30e2ffff,
+	0xacc20010, 0x3c020800, 0x8c421fd0, 0x10400003, 0x3c024b65, 0x0a00023d,
+	0x34427654, 0x3c02b49a, 0x344289ab, 0xacc2001c, 0x0e000560, 0x00c02021,
+	0x3242ffff, 0x0054102b, 0x1440ffa4, 0x00000000, 0x24020002, 0x3c010800,
+	0x0a000250, 0xa02216f8, 0x8ea208bc, 0x24420001, 0x0a000250, 0xaea208bc,
+	0x14620003, 0x00000000, 0x0e000450, 0x00000000, 0x8fbf002c, 0x8fb60028,
+	0x8fb50024, 0x8fb40020, 0x8fb3001c, 0x8fb20018, 0x8fb10014, 0x8fb00010,
+	0x03e00008, 0x27bd0030, 0x27bdffd8, 0xafb3001c, 0x00809821, 0xafbf0020,
+	0xafb20018, 0xafb10014, 0xafb00010, 0x8f725c9c, 0x3c0200ff, 0x3442fff8,
+	0x3c040800, 0x24841714, 0x02428824, 0x9623000e, 0x8c820000, 0x00431021,
+	0xac820000, 0x8e220010, 0x30420020, 0x14400011, 0x00000000, 0x0e0002f7,
+	0x02202021, 0x3c02c000, 0x02421825, 0xaf635c9c, 0x8f625c90, 0x30420002,
+	0x10400061, 0x00000000, 0xaf635c9c, 0x8f625c90, 0x30420002, 0x1040005c,
+	0x00000000, 0x0a000278, 0x00000000, 0x8e220008, 0x00021c02, 0x000321c0,
+	0x3042ffff, 0x3c030800, 0x906316f8, 0x000229c0, 0x24020002, 0x14620003,
+	0x3c034b65, 0x0a000290, 0x00008021, 0x8e22001c, 0x34637654, 0x10430002,
+	0x24100002, 0x24100001, 0x0e000300, 0x02003021, 0x24020003, 0x3c010800,
+	0xa02216f8, 0x24020002, 0x1202000a, 0x24020001, 0x3c030800, 0x8c631fd0,
+	0x10620006, 0x00000000, 0x3c020800, 0x94421fb8, 0x00021400, 0x0a0002cd,
+	0xae220014, 0x3c040800, 0x24841fba, 0x94820000, 0x00021400, 0xae220014,
+	0x3c020800, 0x8c42171c, 0x3c03c000, 0x3c010800, 0xa02016f8, 0x00431025,
+	0xaf625c5c, 0x8f625c50, 0x30420002, 0x10400009, 0x00000000, 0x2484f762,
+	0x8c820000, 0x00431025, 0xaf625c5c, 0x8f625c50, 0x30420002, 0x1440fffa,
+	0x00000000, 0x3c020800, 0x244216e4, 0x8c430000, 0x24630001, 0xac430000,
+	0x8f630c14, 0x3063000f, 0x2c620002, 0x1440000b, 0x00009821, 0x8f630c14,
+	0x3c020800, 0x8c4216b4, 0x3063000f, 0x24420001, 0x3c010800, 0xac2216b4,
+	0x2c620002, 0x1040fff7, 0x00009821, 0x3c024000, 0x02421825, 0xaf635c9c,
+	0x8f625c90, 0x30420002, 0x1440fffc, 0x00000000, 0x12600003, 0x00000000,
+	0x0e000450, 0x00000000, 0x8fbf0020, 0x8fb3001c, 0x8fb20018, 0x8fb10014,
+	0x8fb00010, 0x03e00008, 0x27bd0028, 0x0a0002df, 0x00000000, 0x8f634450,
+	0x3c040800, 0x248416e8, 0x8c820000, 0x00031c02, 0x0043102b, 0x14400007,
+	0x3c038000, 0x8c840004, 0x8f624450, 0x00021c02, 0x0083102b, 0x1040fffc,
+	0x3c038000, 0xaf634444, 0x8f624444, 0x00431024, 0x1440fffd, 0x00000000,
+	0x8f624448, 0x03e00008, 0x3042ffff, 0x3c024000, 0x00822025, 0xaf645c38,
+	0x8f625c30, 0x30420002, 0x1440fffc, 0x00000000, 0x03e00008, 0x00000000,
+	0x27bdffe0, 0x00805021, 0x14c00017, 0x254c0008, 0x3c020800, 0x8c421fd4,
+	0x1040000a, 0x2402003e, 0x3c010800, 0xa4221fb0, 0x24020016, 0x3c010800,
+	0xa4221fb2, 0x2402002a, 0x3c010800, 0x0a00031a, 0xa4221fb4, 0x95420014,
+	0x3c010800, 0xa4221fb0, 0x8d430010, 0x00031402, 0x3c010800, 0xa4221fb2,
+	0x3c010800, 0xa4231fb4, 0x3c040800, 0x94841fb4, 0x3c030800, 0x94631fb2,
+	0x958d0006, 0x3c020800, 0x94421fb0, 0x00832023, 0x01a27023, 0x3065ffff,
+	0x24a20028, 0x01824021, 0x3082ffff, 0x14c0001a, 0x01025821, 0x9562000c,
+	0x3042003f, 0x3c010800, 0xa4221fb6, 0x95620004, 0x95630006, 0x3c010800,
+	0xac201fc4, 0x3c010800, 0xac201fc8, 0x00021400, 0x00431025, 0x3c010800,
+	0xac221720, 0x95020004, 0x3c010800, 0xa4221724, 0x95030002, 0x01a51023,
+	0x0043102a, 0x10400010, 0x24020001, 0x3c010800, 0x0a00034e, 0xac221fd8,
+	0x3c030800, 0x8c631fc8, 0x3c020800, 0x94421724, 0x00431021, 0xa5020004,
+	0x3c020800, 0x94421720, 0xa5620004, 0x3c020800, 0x8c421720, 0xa5620006,
+	0x3c020800, 0x8c421fd0, 0x3c070800, 0x8ce71fc4, 0x3c050800, 0x144000c7,
+	0x8ca51fc8, 0x3c020800, 0x94421724, 0x00451821, 0x3063ffff, 0x0062182b,
+	0x24020002, 0x10c2000d, 0x00a32823, 0x3c020800, 0x94421fb6, 0x30420009,
+	0x10400008, 0x00000000, 0x9562000c, 0x3042fff6, 0xa562000c, 0x3c020800,
+	0x94421fb6, 0x30420009, 0x00e23823, 0x3c020800, 0x8c421fd8, 0x1040004b,
+	0x24020002, 0x01003021, 0x3c020800, 0x94421fb2, 0x00003821, 0xa500000a,
+	0x01a21023, 0xa5020002, 0x3082ffff, 0x00021042, 0x18400008, 0x00002821,
+	0x00401821, 0x94c20000, 0x24e70001, 0x00a22821, 0x00e3102a, 0x1440fffb,
+	0x24c60002, 0x00051c02, 0x30a2ffff, 0x00622821, 0x00051402, 0x00a22821,
+	0x00a04821, 0x00051027, 0xa502000a, 0x00002821, 0x2506000c, 0x00003821,
+	0x94c20000, 0x24e70001, 0x00a22821, 0x2ce20004, 0x1440fffb, 0x24c60002,
+	0x95020002, 0x00003821, 0x91030009, 0x00442023, 0x01603021, 0x3082ffff,
+	0xa4c00010, 0x00621821, 0x00021042, 0x18400010, 0x00a32821, 0x00404021,
+	0x94c20000, 0x24c60002, 0x00a22821, 0x30c2007f, 0x14400006, 0x24e70001,
+	0x8d430000, 0x3c02007f, 0x3442ff80, 0x00625024, 0x25460008, 0x00e8102a,
+	0x1440fff3, 0x00000000, 0x30820001, 0x10400005, 0x00051c02, 0xa0c00001,
+	0x94c20000, 0x00a22821, 0x00051c02, 0x30a2ffff, 0x00622821, 0x00051402,
+	0x00a22821, 0x0a000415, 0x30a5ffff, 0x14c20063, 0x00000000, 0x3c090800,
+	0x95291fb2, 0x95030002, 0x01a91023, 0x1062005d, 0x01003021, 0x00003821,
+	0x00002821, 0x01a91023, 0xa5020002, 0x3082ffff, 0x00021042, 0x18400008,
+	0xa500000a, 0x00401821, 0x94c20000, 0x24e70001, 0x00a22821, 0x00e3102a,
+	0x1440fffb, 0x24c60002, 0x00051c02, 0x30a2ffff, 0x00622821, 0x00051402,
+	0x00a22821, 0x00a04821, 0x00051027, 0xa502000a, 0x00002821, 0x2506000c,
+	0x00003821, 0x94c20000, 0x24e70001, 0x00a22821, 0x2ce20004, 0x1440fffb,
+	0x24c60002, 0x95020002, 0x00003821, 0x91030009, 0x00442023, 0x01603021,
+	0x3082ffff, 0xa4c00010, 0x3c040800, 0x94841fb4, 0x00621821, 0x00a32821,
+	0x00051c02, 0x30a2ffff, 0x00622821, 0x00051c02, 0x3c020800, 0x94421fb0,
+	0x00a34021, 0x00441023, 0x00021fc2, 0x00431021, 0x00021043, 0x18400010,
+	0x00002821, 0x00402021, 0x94c20000, 0x24c60002, 0x00a22821, 0x30c2007f,
+	0x14400006, 0x24e70001, 0x8d430000, 0x3c02007f, 0x3442ff80, 0x00625024,
+	0x25460008, 0x00e4102a, 0x1440fff3, 0x00000000, 0x3c020800, 0x94421fcc,
+	0x00a22821, 0x00051c02, 0x30a2ffff, 0x00622821, 0x00051402, 0x00a22821,
+	0x3102ffff, 0x00a22821, 0x00051c02, 0x30a2ffff, 0x00622821, 0x00051402,
+	0x00a22821, 0x00a02021, 0x00051027, 0xa5620010, 0xad800014, 0x0a000435,
+	0xad800000, 0x8d830010, 0x00602021, 0x10a00007, 0x00034c02, 0x01252821,
+	0x00051402, 0x30a3ffff, 0x00432821, 0x00051402, 0x00a24821, 0x00091027,
+	0xa502000a, 0x3c030800, 0x94631fb4, 0x3082ffff, 0x01a21021, 0x00432823,
+	0x00a72821, 0x00051c02, 0x30a2ffff, 0x00622821, 0x00051402, 0x00a22821,
+	0x00a02021, 0x00051027, 0xa5620010, 0x3082ffff, 0x00091c00, 0x00431025,
+	0xad820010, 0x3c020800, 0x8c421fd4, 0x10400002, 0x25a2fff2, 0xa5820034,
+	0x3c020800, 0x8c421fc8, 0x3c030800, 0x8c631720, 0x24420001, 0x3c010800,
+	0xac221fc8, 0x3c020800, 0x8c421fc4, 0x31c4ffff, 0x00641821, 0x3c010800,
+	0xac231720, 0x00441021, 0x3c010800, 0xac221fc4, 0x03e00008, 0x27bd0020,
+	0x27bdffc8, 0x3c040800, 0x248416f8, 0xafbf0034, 0xafbe0030, 0xafb7002c,
+	0xafb60028, 0xafb50024, 0xafb40020, 0xafb3001c, 0xafb20018, 0xafb10014,
+	0xafb00010, 0x90830000, 0x24020003, 0x146200f4, 0x00000000, 0x3c020800,
+	0x8c421710, 0x3c030800, 0x8c63170c, 0x3c1e0800, 0x97de16f6, 0x0043102a,
+	0x104000eb, 0x3c168000, 0x249708c4, 0x33d5ffff, 0x24920018, 0x3c020800,
+	0x8c421718, 0x104000e4, 0x00000000, 0x3c140800, 0x96941fb0, 0x3282ffff,
+	0x104000d6, 0x00008021, 0x00409821, 0x00008821, 0x8f634450, 0x3c020800,
+	0x8c4216e8, 0x00031c02, 0x0043102b, 0x14400008, 0x00000000, 0x3c040800,
+	0x8c8416ec, 0x8f624450, 0x00021c02, 0x0083102b, 0x1040fffc, 0x00000000,
+	0xaf764444, 0x8f624444, 0x00561024, 0x10400006, 0x00000000, 0x3c038000,
+	0x8f624444, 0x00431024, 0x1440fffd, 0x00000000, 0x8f624448, 0x3046ffff,
+	0x10c0005f, 0x00000000, 0x3c090800, 0x01314821, 0x8d291728, 0x9528000a,
+	0x31020040, 0x10400004, 0x2407180c, 0x8d22000c, 0x2407188c, 0xacc20018,
+	0x31021000, 0x10400004, 0x34e32000, 0x00081040, 0x3042c000, 0x00623825,
+	0x31020080, 0x54400001, 0x34e70010, 0x3c020800, 0x00511021, 0x8c421730,
+	0x3c030800, 0x00711821, 0x8c631734, 0x00021500, 0x00031c00, 0x00431025,
+	0xacc20014, 0x95240008, 0x3202ffff, 0x00821021, 0x0262102a, 0x14400002,
+	0x02902823, 0x00802821, 0x8d220000, 0x02058021, 0xacc20000, 0x8d220004,
+	0x00c02021, 0x26310010, 0xac820004, 0x30e2ffff, 0xac800008, 0xa485000e,
+	0xac820010, 0x24020305, 0x0e000560, 0xa482000c, 0x3202ffff, 0x0053102b,
+	0x1440ffaf, 0x3202ffff, 0x0a00054c, 0x00000000, 0x8e420000, 0x8e43fffc,
+	0x0043102a, 0x10400084, 0x00000000, 0x8e45fff0, 0x8f644450, 0x3c030800,
+	0x8c6316e8, 0x00051100, 0x3c090800, 0x01224821, 0x8d291728, 0x00041402,
+	0x0062182b, 0x14600008, 0x00000000, 0x3c030800, 0x8c6316ec, 0x8f624450,
+	0x00021402, 0x0062102b, 0x1040fffc, 0x00000000, 0xaf764444, 0x8f624444,
+	0x00561024, 0x10400006, 0x00000000, 0x3c038000, 0x8f624444, 0x00431024,
+	0x1440fffd, 0x00000000, 0x8f624448, 0x3046ffff, 0x14c00005, 0x00000000,
+	0x8ee20000, 0x24420001, 0x0a000554, 0xaee20000, 0x9528000a, 0x31020040,
+	0x10400004, 0x2407180c, 0x8d22000c, 0x2407188c, 0xacc20018, 0x31021000,
+	0x10400004, 0x34e32000, 0x00081040, 0x3042c000, 0x00623825, 0x00051900,
+	0x3c020800, 0x00431021, 0x8c421730, 0x3c010800, 0x00230821, 0x8c231734,
+	0x00021500, 0x00031c00, 0x00431025, 0xacc20014, 0x3c030800, 0x8c631704,
+	0x95220008, 0x00432023, 0x3202ffff, 0x3083ffff, 0x00431021, 0x02a2102a,
+	0x14400002, 0x03d02823, 0x00802821, 0x8e420000, 0x30a4ffff, 0x00441021,
+	0xae420000, 0xa4c5000e, 0x8d220000, 0xacc20000, 0x8d220004, 0x8e43fff4,
+	0x00431021, 0xacc20004, 0x8e43fff4, 0x95220008, 0x00641821, 0x0062102a,
+	0x14400006, 0x02058021, 0x8e42fff0, 0xae40fff4, 0x24420001, 0x0a000530,
+	0xae42fff0, 0xae43fff4, 0xacc00008, 0x3202ffff, 0x10550003, 0x31020004,
+	0x10400006, 0x24020305, 0x31020080, 0x54400001, 0x34e70010, 0x34e70020,
+	0x24020905, 0xa4c2000c, 0x30e2ffff, 0xacc20010, 0x3c030800, 0x8c63170c,
+	0x3c020800, 0x8c421710, 0x54620004, 0x3c02b49a, 0x3c024b65, 0x0a000548,
+	0x34427654, 0x344289ab, 0xacc2001c, 0x0e000560, 0x00c02021, 0x3202ffff,
+	0x0055102b, 0x1440ff7e, 0x00000000, 0x8e420000, 0x8e43fffc, 0x0043102a,
+	0x1440ff1a, 0x00000000, 0x8fbf0034, 0x8fbe0030, 0x8fb7002c, 0x8fb60028,
+	0x8fb50024, 0x8fb40020, 0x8fb3001c, 0x8fb20018, 0x8fb10014, 0x8fb00010,
+	0x03e00008, 0x27bd0038, 0x27bdffe8, 0xafbf0014, 0xafb00010, 0x8f624450,
+	0x8f634410, 0x0a00056f, 0x00808021, 0x8f626820, 0x30422000, 0x10400003,
+	0x00000000, 0x0e00025a, 0x00002021, 0x8f624450, 0x8f634410, 0x3042ffff,
+	0x0043102b, 0x1440fff5, 0x00000000, 0x8f630c14, 0x3063000f, 0x2c620002,
+	0x1440000b, 0x00000000, 0x8f630c14, 0x3c020800, 0x8c4216b4, 0x3063000f,
+	0x24420001, 0x3c010800, 0xac2216b4, 0x2c620002, 0x1040fff7, 0x00000000,
+	0xaf705c18, 0x8f625c10, 0x30420002, 0x10400009, 0x00000000, 0x8f626820,
+	0x30422000, 0x1040fff8, 0x00000000, 0x0e00025a, 0x00002021, 0x0a000582,
+	0x00000000, 0x8fbf0014, 0x8fb00010, 0x03e00008, 0x27bd0018, 0x00000000,
+	0x00000000
+};
+
+u32 tg3TsoFwRodata[] = {
+	0x4d61696e, 0x43707542, 0x00000000, 0x00000000, 0x74637073, 0x6567496e,
+	0x00000000, 0x53774576, 0x656e7430, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000
+};
+
+#if 0 /* All zeros, dont eat up space with it. */
+u32 tg3TsoFwData[] = {
+	0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000
+};
+#endif
+
+/* tp->lock is held. */
+static int tg3_load_tso_firmware(struct tg3 *tp)
+{
+	struct fw_info info;
+	int err, i;
+
+	info.text_base = TG3_TSO_FW_TEXT_ADDR;
+	info.text_len = TG3_TSO_FW_TEXT_LEN;
+	info.text_data = &tg3TsoFwText[0];
+	info.rodata_base = TG3_TSO_FW_RODATA_ADDR;
+	info.rodata_len = TG3_TSO_FW_RODATA_LEN;
+	info.rodata_data = &tg3TsoFwRodata[0];
+	info.data_base = TG3_TSO_FW_DATA_ADDR;
+	info.data_len = TG3_TSO_FW_DATA_LEN;
+	info.data_data = NULL;
+
+	err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
+				    TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
+				    &info);
+	if (err)
+		return err;
+
+	/* Now startup only the TX cpu. */
+	tw32(TX_CPU_BASE + CPU_STATE, 0xffffffff);
+	tw32(TX_CPU_BASE + CPU_PC,    TG3_TSO_FW_TEXT_ADDR);
+
+	/* Flush posted writes. */
+	tr32(TX_CPU_BASE + CPU_PC);
+	for (i = 0; i < 5; i++) {
+		if (tr32(TX_CPU_BASE + CPU_PC) == TG3_TSO_FW_TEXT_ADDR)
+			break;
+		tw32(TX_CPU_BASE + CPU_STATE, 0xffffffff);
+		tw32(TX_CPU_BASE + CPU_MODE,  CPU_MODE_HALT);
+		tw32(TX_CPU_BASE + CPU_PC,    TG3_TSO_FW_TEXT_ADDR);
+
+		/* Flush posted writes. */
+		tr32(TX_CPU_BASE + CPU_PC);
+
+		udelay(1000);
+	}
+	if (i >= 5) {
+		printk(KERN_ERR PFX "tg3_load_tso_firmware fails for %s "
+		       "to set TX CPU PC, is %08x should be %08x\n",
+		       tp->dev->name, tr32(TX_CPU_BASE + CPU_PC),
+		       TG3_TSO_FW_TEXT_ADDR);
+		return -ENODEV;
+	}
+	tw32(TX_CPU_BASE + CPU_STATE, 0xffffffff);
+	tw32(TX_CPU_BASE + CPU_MODE,  0x00000000);
+
+	/* Flush posted writes. */
+	tr32(TX_CPU_BASE + CPU_MODE);
+
+	return 0;
+}
+
+#endif /* NETIF_F_TSO */
+
 /* tp->lock is held. */
 static void __tg3_set_mac_addr(struct tg3 *tp)
 {
@@ -3826,6 +4193,12 @@ static int tg3_reset_hw(struct tg3 *tp)
 			return err;
 	}
 
+#ifdef NETIF_F_TSO
+	err = tg3_load_tso_firmware(tp);
+	if (err)
+		return err;
+#endif
+
 	tp->tx_mode = TX_MODE_ENABLE;
 	tw32(MAC_TX_MODE, tp->tx_mode);
 	tr32(MAC_TX_MODE);
@@ -6180,6 +6553,9 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 	dev->vlan_rx_register = tg3_vlan_rx_register;
 	dev->vlan_rx_kill_vid = tg3_vlan_rx_kill_vid;
 #endif
+#ifdef NETIF_F_TSO
+	dev->features |= NETIF_F_TSO
+#endif
 
 	tp = dev->priv;
 	tp->pdev = pdev;

drivers/net/tg3.h

@@ -1415,6 +1415,7 @@ struct tg3_tx_buffer_desc {
 
 	u32				vlan_tag;
 #define TXD_VLAN_TAG_SHIFT		0
+#define TXD_MSS_SHIFT			16
 };
 
 #define TXD_ADDR			0x00UL /* 64-bit */