e1000e,igb,ixgbe: add registers etc. printout code just before resetting adapters

Index: net-next-2.6/drivers/net/e1000e/netdev.c
===================================================================
@@ -52,6 +52,14 @@
 char e1000e_driver_name[] = "e1000e";
 const char e1000e_driver_version[] = DRV_VERSION;
 
+static unsigned int dump_flag = 1;
+module_param(dump_flag, uint, 0644);
+MODULE_PARM_DESC(dump_flag, "Dump Flag");
+#define E1000_DUMP_REGS		(1 << 0)
+#define E1000_DUMP_TX_RINGS	(1 << 1)
+#define E1000_DUMP_RX_RINGS	(1 << 2)
+#define E1000_DUMP_BUFFERS	(1 << 3)
+
 static const struct e1000_info *e1000_info_tbl[] = {
 	[board_82571]		= &e1000_82571_info,
 	[board_82572]		= &e1000_82572_info,

@@ -65,6 +73,338 @@ static const struct e1000_info *e1000_in
 	[board_pchlan]		= &e1000_pch_info,
 };
 
+/*
+ * e1000_regdump - register printout routine
+ */
+static void e1000_regdump(struct e1000_hw *hw, u32 reg,
+			  char *name, u32 (*get_regofs)(int))
+{
+	printk(KERN_ERR "%-15s %08x\n", name, __er32(hw, reg));
+}
+
+/*
+ * e1000_regdump_n - register printout routine
+ */
+static void e1000_regdump_n(struct e1000_hw *hw, u32 reg,
+			    char *name, u32 (*get_regofs)(int))
+{
+	int n = 0;
+	char rname[16];
+
+	if (!get_regofs)
+		return;
+
+	snprintf(rname, 16, "%s%s", name, "[0-1]");
+	printk(KERN_ERR "%-15s ", rname);
+	for (n = 0; n < 2; n++)
+		printk("%08x ", __er32(hw, get_regofs(n)));
+	printk("\n");
+}
+
+static const struct e1000_reg_info e1000_reg_info_tbl[] = {
+
+	/* General Registers */
+	{E1000_CTRL, "CTRL", NULL, e1000_regdump},
+	{E1000_STATUS, "STATUS", NULL, e1000_regdump},
+	{E1000_CTRL_EXT, "CTRL_EXT", NULL, e1000_regdump},
+
+	/* Interrupt Registers */
+	{E1000_ICR, "ICR", NULL, e1000_regdump},
+
+	/* RX Registers */
+	{E1000_RCTL, "RCTL", NULL, e1000_regdump},
+	{E1000_RDLEN, "RDLEN", NULL, e1000_regdump},
+	{E1000_RDH, "RDH", NULL, e1000_regdump},
+	{E1000_RDT, "RDT", NULL, e1000_regdump},
+	{E1000_RDTR, "RDTR", NULL, e1000_regdump},
+	{E1000_RXDCTL(0), "RXDCTL", get_regofs_RXDCTL, e1000_regdump_n},
+	{E1000_ERT, "ERT", NULL, e1000_regdump},
+	{E1000_RDBAL, "RDBAL", NULL, e1000_regdump},
+	{E1000_RDBAH, "RDBAH", NULL, e1000_regdump},
+	{E1000_RDFH, "RDFH", NULL, e1000_regdump},
+	{E1000_RDFT, "RDFT", NULL, e1000_regdump},
+	{E1000_RDFHS, "RDFHS", NULL, e1000_regdump},
+	{E1000_RDFTS, "RDFTS", NULL, e1000_regdump},
+	{E1000_RDFPC, "RDFPC", NULL, e1000_regdump},
+
+	/* TX Registers */
+	{E1000_TCTL, "TCTL", NULL, e1000_regdump},
+	{E1000_TDBAL, "TDBAL", NULL, e1000_regdump},
+	{E1000_TDBAH, "TDBAH", NULL, e1000_regdump},
+	{E1000_TDLEN, "TDLEN", NULL, e1000_regdump},
+	{E1000_TDH, "TDH", NULL, e1000_regdump},
+	{E1000_TDT, "TDT", NULL, e1000_regdump},
+	{E1000_TIDV, "TIDV", NULL, e1000_regdump},
+	{E1000_TXDCTL(0), "TXDCTL", get_regofs_TXDCTL, e1000_regdump_n},
+	{E1000_TADV, "TADV", NULL, e1000_regdump},
+	{E1000_TARC(0), "TARC", get_regofs_TARC, e1000_regdump_n},
+	{E1000_TDFH, "TDFH", NULL, e1000_regdump},
+	{E1000_TDFT, "TDFT", NULL, e1000_regdump},
+	{E1000_TDFHS, "TDFHS", NULL, e1000_regdump},
+	{E1000_TDFTS, "TDFTS", NULL, e1000_regdump},
+	{E1000_TDFPC, "TDFPC", NULL, e1000_regdump},
+
+	/* List Terminator */
+	{}
+};
+
+/*
+ * e1000e_dump - Print registers, tx-ring and rx-ring
+ */
+static void e1000e_dump(struct e1000_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct e1000_hw *hw = &adapter->hw;
+	struct e1000_reg_info *reginfo;
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	struct e1000_tx_desc *tx_desc;
+	struct my_u0 { u64 a; u64 b; } *u0;
+	struct e1000_buffer *buffer_info;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	union e1000_rx_desc_packet_split *rx_desc_ps;
+	struct e1000_rx_desc *rx_desc;
+	struct my_u1 { u64 a; u64 b; u64 c; u64 d; } *u1;
+	u32 staterr;
+	int i = 0;
+
+	/* Print netdevice Info */
+	if (netdev) {
+		dev_err(&adapter->pdev->dev, "Net device Info\n");
+		printk(KERN_ERR "Device Name     state            "
+			"trans_start      last_rx\n");
+		printk(KERN_ERR "%-15s %016lX %016lX %016lX\n",
+			netdev->name,
+			netdev->state,
+			netdev->trans_start,
+			netdev->last_rx);
+	}
+
+	/* Print Registers */
+	if ((dump_flag & E1000_DUMP_REGS) == 0)
+		goto tx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "Register Dump\n");
+	printk(KERN_ERR " Register Name   Value\n");
+	for (reginfo = (struct e1000_reg_info *)e1000_reg_info_tbl;
+	     reginfo->name; reginfo++) {
+		reginfo->dump_reg(hw, reginfo->reg, reginfo->name,
+					reginfo->get_regofs);
+	}
+
+	/* Print TX Ring Summary */
+tx_ring_summary:
+	if (!netdev || !netif_running(netdev))
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC] [bi(ntc)->dma  ]"
+		" leng ntw timestamp\n");
+	buffer_info = &tx_ring->buffer_info[tx_ring->next_to_clean];
+	printk(KERN_ERR " %5d %5X %5X %016llX %04X %3X %016llX\n",
+		0, tx_ring->next_to_use, tx_ring->next_to_clean,
+		(u64)buffer_info->dma,
+		buffer_info->length,
+		buffer_info->next_to_watch,
+		(u64)buffer_info->time_stamp);
+
+	/* Print TX Rings */
+	if ((dump_flag & E1000_DUMP_TX_RINGS) == 0)
+		goto rx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Dump\n");
+
+	/* Transmit Descriptor Formats - DEXT[29] is 0 (Legacy) or 1 (Extended)
+	 *
+	 * Legacy Transmit Descriptor
+	 *   +--------------------------------------------------------------+
+	 * 0 |         Buffer Address [63:0] (Reserved on Write Back)       |
+	 *   +--------------------------------------------------------------+
+	 * 8 | Special  |    CSS     | Status |  CMD    |  CSO   |  Length  |
+	 *   +--------------------------------------------------------------+
+	 *   63       48 47        36 35    32 31     24 23    16 15        0
+	 *
+	 * Extended Context Descriptor (DTYP=0x0) for TSO or checksum offload
+	 *   63      48 47    40 39       32 31             16 15    8 7      0
+	 *   +----------------------------------------------------------------+
+	 * 0 |  TUCSE  | TUCS0  |   TUCSS   |     IPCSE       | IPCS0 | IPCSS |
+	 *   +----------------------------------------------------------------+
+	 * 8 |   MSS   | HDRLEN | RSV | STA | TUCMD | DTYP |      PAYLEN      |
+	 *   +----------------------------------------------------------------+
+	 *   63      48 47    40 39 36 35 32 31   24 23  20 19                0
+	 *
+	 * Extended Data Descriptor (DTYP=0x1)
+	 *   +----------------------------------------------------------------+
+	 * 0 |                     Buffer Address [63:0]                      |
+	 *   +----------------------------------------------------------------+
+	 * 8 | VLAN tag |  POPTS  | Rsvd | Status | Command | DTYP |  DTALEN  |
+	 *   +----------------------------------------------------------------+
+	 *   63       48 47     40 39  36 35    32 31     24 23  20 19        0
+	 */
+	printk(KERN_ERR "Tl[desc]     [address 63:0  ] [SpeCssSCmCsLen]"
+		" [bi->dma       ] leng  ntw timestamp        bi->skb "
+		"<-- Legacy format\n");
+	printk(KERN_ERR "Tc[desc]     [Ce CoCsIpceCoS] [MssHlRSCm0Plen]"
+		" [bi->dma       ] leng  ntw timestamp        bi->skb "
+		"<-- Ext Context format\n");
+	printk(KERN_ERR "Td[desc]     [address 63:0  ] [VlaPoRSCm1Dlen]"
+		" [bi->dma       ] leng  ntw timestamp        bi->skb "
+		"<-- Ext Data format\n");
+	for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
+		tx_desc = E1000_TX_DESC(*tx_ring, i);
+		buffer_info = &tx_ring->buffer_info[i];
+		u0 = (struct my_u0 *)tx_desc;
+		printk(KERN_ERR "T%c[0x%03X]    %016llX %016llX %016llX "
+			"%04X  %3X %016llX %p",
+		       (!(le64_to_cpu(u0->b) & (1<<29)) ? 'l' :
+			((le64_to_cpu(u0->b) & (1<<20)) ? 'd' : 'c')), i,
+		       le64_to_cpu(u0->a), le64_to_cpu(u0->b),
+		       (u64)buffer_info->dma, buffer_info->length,
+		       buffer_info->next_to_watch, (u64)buffer_info->time_stamp,
+		       buffer_info->skb);
+		if (i == tx_ring->next_to_use && i == tx_ring->next_to_clean)
+			printk(" NTC/U\n");
+		else if (i == tx_ring->next_to_use)
+			printk(" NTU\n");
+		else if (i == tx_ring->next_to_clean)
+			printk(" NTC\n");
+		else
+			printk("\n");
+
+		if ((dump_flag & E1000_DUMP_BUFFERS) && buffer_info->dma != 0)
+			print_hex_dump(KERN_ERR, "", DUMP_PREFIX_ADDRESS,
+					16, 1, phys_to_virt(buffer_info->dma),
+					buffer_info->length, true);
+	}
+
+	/* Print RX Rings Summary */
+rx_ring_summary:
+	dev_err(&adapter->pdev->dev, "RX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC]\n");
+	printk(KERN_ERR " %5d %5X %5X\n", 0,
+		rx_ring->next_to_use, rx_ring->next_to_clean);
+
+	/* Print RX Rings */
+	if ((dump_flag & E1000_DUMP_RX_RINGS) == 0)
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "RX Rings Dump\n");
+	switch (adapter->rx_ps_pages) {
+	case 1:
+	case 2:
+	case 3:
+		/* [Extended] Packet Split Receive Descriptor Format
+		 *
+		 *    +-----------------------------------------------------+
+		 *  0 |                Buffer Address 0 [63:0]              |
+		 *    +-----------------------------------------------------+
+		 *  8 |                Buffer Address 1 [63:0]              |
+		 *    +-----------------------------------------------------+
+		 * 16 |                Buffer Address 2 [63:0]              |
+		 *    +-----------------------------------------------------+
+		 * 24 |                Buffer Address 3 [63:0]              |
+		 *    +-----------------------------------------------------+
+		 */
+		printk(KERN_ERR "R  [desc]      [buffer 0 63:0 ] "
+			"[buffer 1 63:0 ] "
+		       "[buffer 2 63:0 ] [buffer 3 63:0 ] [bi->dma       ] "
+		       "[bi->skb] <-- Ext Pkt Split format\n");
+		/* [Extended] Receive Descriptor (Write-Back) Format
+		 *
+		 *   63       48 47    32 31     13 12    8 7    4 3        0
+		 *   +------------------------------------------------------+
+		 * 0 | Packet   | IP     |  Rsvd   | MRQ   | Rsvd | MRQ RSS |
+		 *   | Checksum | Ident  |         | Queue |      |  Type   |
+		 *   +------------------------------------------------------+
+		 * 8 | VLAN Tag | Length | Extended Error | Extended Status |
+		 *   +------------------------------------------------------+
+		 *   63       48 47    32 31            20 19               0
+		 */
+		printk(KERN_ERR "RWB[desc]      [ck ipid mrqhsh] "
+			"[vl   l0 ee  es] "
+		       "[ l3  l2  l1 hs] [reserved      ] ---------------- "
+		       "[bi->skb] <-- Ext Rx Write-Back format\n");
+		for (i = 0; i < rx_ring->count; i++) {
+			buffer_info = &rx_ring->buffer_info[i];
+			rx_desc_ps = E1000_RX_DESC_PS(*rx_ring, i);
+			u1 = (struct my_u1 *)rx_desc_ps;
+			staterr =
+				le32_to_cpu(rx_desc_ps->wb.middle.status_error);
+			if (staterr & E1000_RXD_STAT_DD) {
+				/* Descriptor Done */
+				printk(KERN_ERR "RWB[0x%03X]     %016llX "
+					"%016llX %016llX %016llX "
+					"---------------- %p", i,
+					le64_to_cpu(u1->a),
+					le64_to_cpu(u1->b),
+					le64_to_cpu(u1->c),
+					le64_to_cpu(u1->d),
+					buffer_info->skb);
+			} else {
+				printk(KERN_ERR "R  [0x%03X]     %016llX "
+					"%016llX %016llX %016llX %016llX %p", i,
+					le64_to_cpu(u1->a),
+					le64_to_cpu(u1->b),
+					le64_to_cpu(u1->c),
+					le64_to_cpu(u1->d),
+					(u64)buffer_info->dma,
+					buffer_info->skb);
+
+				if (dump_flag & E1000_DUMP_BUFFERS)
+					print_hex_dump(KERN_ERR, "",
+						DUMP_PREFIX_ADDRESS, 16, 1,
+						phys_to_virt(buffer_info->dma),
+						adapter->rx_ps_bsize0, true);
+			}
+
+			if (i == rx_ring->next_to_use)
+				printk(" NTU\n");
+			else if (i == rx_ring->next_to_clean)
+				printk(" NTC\n");
+			else
+				printk("\n");
+		}
+		break;
+	default:
+	case 0:
+		/* Legacy Receive Descriptor Format
+		 *
+		 * +-----------------------------------------------------+
+		 * |                Buffer Address [63:0]                |
+		 * +-----------------------------------------------------+
+		 * | VLAN Tag | Errors | Status 0 | Packet csum | Length |
+		 * +-----------------------------------------------------+
+		 * 63       48 47    40 39      32 31         16 15      0
+		 */
+		printk(KERN_ERR "Rl[desc]     [address 63:0  ] "
+			"[vl er S cks ln] [bi->dma       ] [bi->skb] "
+			"<-- Legacy format\n");
+		for (i = 0; rx_ring->desc && (i < rx_ring->count); i++) {
+			rx_desc = E1000_RX_DESC(*rx_ring, i);
+			buffer_info = &rx_ring->buffer_info[i];
+			u0 = (struct my_u0 *)rx_desc;
+			printk(KERN_ERR "Rl[0x%03X]    %016llX %016llX "
+				"%016llX %p",
+				i, le64_to_cpu(u0->a), le64_to_cpu(u0->b),
+				(u64)buffer_info->dma, buffer_info->skb);
+			if (i == rx_ring->next_to_use)
+				printk(" NTU\n");
+			else if (i == rx_ring->next_to_clean)
+				printk(" NTC\n");
+			else
+				printk("\n");
+
+			if (dump_flag & E1000_DUMP_BUFFERS)
+				print_hex_dump(KERN_ERR, "",
+					DUMP_PREFIX_ADDRESS,
+					16, 1, phys_to_virt(buffer_info->dma),
+					adapter->rx_buffer_len, true);
+		}
+	}
+
+exit:
+	return;
+}
+
 /**
  * e1000_desc_unused - calculate if we have unused descriptors
  **/

@@ -4247,6 +4587,7 @@ static void e1000_reset_task(struct work
 	struct e1000_adapter *adapter;
 	adapter = container_of(work, struct e1000_adapter, reset_task);
 
+	e1000e_dump(adapter);
 	e1000e_reinit_locked(adapter);
 }
 

Index: net-next-2.6/drivers/net/e1000e/hw.h
===================================================================
@@ -92,6 +92,11 @@ enum e1e_registers {
 	E1000_FCRTL    = 0x02160, /* Flow Control Receive Threshold Low - RW */
 	E1000_FCRTH    = 0x02168, /* Flow Control Receive Threshold High - RW */
 	E1000_PSRCTL   = 0x02170, /* Packet Split Receive Control - RW */
+	E1000_RDFH     = 0x02410, /* Rx Data FIFO Head - RW */
+	E1000_RDFT     = 0x02418, /* Rx Data FIFO Tail - RW */
+	E1000_RDFHS    = 0x02420, /* Rx Data FIFO Head Saved - RW */
+	E1000_RDFTS    = 0x02428, /* Rx Data FIFO Tail Saved - RW */
+	E1000_RDFPC    = 0x02430, /* Rx Data FIFO Packet Count - RW */
 	E1000_RDBAL    = 0x02800, /* Rx Descriptor Base Address Low - RW */
 	E1000_RDBAH    = 0x02804, /* Rx Descriptor Base Address High - RW */
 	E1000_RDLEN    = 0x02808, /* Rx Descriptor Length - RW */

@@ -101,6 +106,11 @@ enum e1e_registers {
 	E1000_RXDCTL_BASE = 0x02828, /* Rx Descriptor Control - RW */
 #define E1000_RXDCTL(_n)   (E1000_RXDCTL_BASE + (_n << 8))
 	E1000_RADV     = 0x0282C, /* RX Interrupt Absolute Delay Timer - RW */
+	E1000_TDFH     = 0x03410, /* Tx Data FIFO Head - RW */
+	E1000_TDFT     = 0x03418, /* Tx Data FIFO Tail - RW */
+	E1000_TDFHS    = 0x03420, /* Tx Data FIFO Head Saved - RW */
+	E1000_TDFTS    = 0x03428, /* Tx Data FIFO Tail Saved - RW */
+	E1000_TDFPC    = 0x03430, /* Tx Data FIFO Packet Count - RW */
 
 /* Convenience macros
  *

@@ -219,6 +229,23 @@ enum e1e_registers {
 	E1000_HICR      = 0x08F00, /* Host Interface Control */
 };
 
+struct e1000_reg_info {
+	u32 reg;
+	char *name;
+	u32 (*get_regofs)(int);
+	void (*dump_reg)(struct e1000_hw *, u32, char *, u32 (*)(int));
+};
+
+#define E1000_GET_REGOFS_FUNC(name)				\
+static inline u32 get_regofs_##name(int n)			\
+{								\
+	return E1000_##name(n);						\
+}								\
+
+E1000_GET_REGOFS_FUNC(RXDCTL)
+E1000_GET_REGOFS_FUNC(TXDCTL)
+E1000_GET_REGOFS_FUNC(TARC)
+
 #define E1000_MAX_PHY_ADDR		4
 
 /* IGP01E1000 Specific Registers */

Index: net-next-2.6/drivers/net/e1000e/netdev.c
===================================================================
@@ -52,6 +52,14 @@
 char e1000e_driver_name[] = "e1000e";
 const char e1000e_driver_version[] = DRV_VERSION;
 
+static unsigned int dump_flag = 1;
+module_param(dump_flag, uint, 0644);
+MODULE_PARM_DESC(dump_flag, "Dump Flag");
+#define E1000_DUMP_REGS		(1 << 0)
+#define E1000_DUMP_TX_RINGS	(1 << 1)
+#define E1000_DUMP_RX_RINGS	(1 << 2)
+#define E1000_DUMP_BUFFERS	(1 << 3)
+
 static const struct e1000_info *e1000_info_tbl[] = {
 	[board_82571]		= &e1000_82571_info,
 	[board_82572]		= &e1000_82572_info,

@@ -65,6 +73,338 @@ static const struct e1000_info *e1000_in
 	[board_pchlan]		= &e1000_pch_info,
 };
 
+/*
+ * e1000_regdump - register printout routine
+ */
+static void e1000_regdump(struct e1000_hw *hw, u32 reg,
+			  char *name, u32 (*get_regofs)(int))
+{
+	printk(KERN_ERR "%-15s %08x\n", name, __er32(hw, reg));
+}
+
+/*
+ * e1000_regdump_n - register printout routine
+ */
+static void e1000_regdump_n(struct e1000_hw *hw, u32 reg,
+			    char *name, u32 (*get_regofs)(int))
+{
+	int n = 0;
+	char rname[16];
+
+	if (!get_regofs)
+		return;
+
+	snprintf(rname, 16, "%s%s", name, "[0-1]");
+	printk(KERN_ERR "%-15s ", rname);
+	for (n = 0; n < 2; n++)
+		printk(KERN_CONT "%08x ", __er32(hw, get_regofs(n)));
+	printk(KERN_CONT "\n");
+}
+
+static const struct e1000_reg_info e1000_reg_info_tbl[] = {
+
+	/* General Registers */
+	{E1000_CTRL, "CTRL", NULL, e1000_regdump},
+	{E1000_STATUS, "STATUS", NULL, e1000_regdump},
+	{E1000_CTRL_EXT, "CTRL_EXT", NULL, e1000_regdump},
+
+	/* Interrupt Registers */
+	{E1000_ICR, "ICR", NULL, e1000_regdump},
+
+	/* RX Registers */
+	{E1000_RCTL, "RCTL", NULL, e1000_regdump},
+	{E1000_RDLEN, "RDLEN", NULL, e1000_regdump},
+	{E1000_RDH, "RDH", NULL, e1000_regdump},
+	{E1000_RDT, "RDT", NULL, e1000_regdump},
+	{E1000_RDTR, "RDTR", NULL, e1000_regdump},
+	{E1000_RXDCTL(0), "RXDCTL", get_regofs_RXDCTL, e1000_regdump_n},
+	{E1000_ERT, "ERT", NULL, e1000_regdump},
+	{E1000_RDBAL, "RDBAL", NULL, e1000_regdump},
+	{E1000_RDBAH, "RDBAH", NULL, e1000_regdump},
+	{E1000_RDFH, "RDFH", NULL, e1000_regdump},
+	{E1000_RDFT, "RDFT", NULL, e1000_regdump},
+	{E1000_RDFHS, "RDFHS", NULL, e1000_regdump},
+	{E1000_RDFTS, "RDFTS", NULL, e1000_regdump},
+	{E1000_RDFPC, "RDFPC", NULL, e1000_regdump},
+
+	/* TX Registers */
+	{E1000_TCTL, "TCTL", NULL, e1000_regdump},
+	{E1000_TDBAL, "TDBAL", NULL, e1000_regdump},
+	{E1000_TDBAH, "TDBAH", NULL, e1000_regdump},
+	{E1000_TDLEN, "TDLEN", NULL, e1000_regdump},
+	{E1000_TDH, "TDH", NULL, e1000_regdump},
+	{E1000_TDT, "TDT", NULL, e1000_regdump},
+	{E1000_TIDV, "TIDV", NULL, e1000_regdump},
+	{E1000_TXDCTL(0), "TXDCTL", get_regofs_TXDCTL, e1000_regdump_n},
+	{E1000_TADV, "TADV", NULL, e1000_regdump},
+	{E1000_TARC(0), "TARC", get_regofs_TARC, e1000_regdump_n},
+	{E1000_TDFH, "TDFH", NULL, e1000_regdump},
+	{E1000_TDFT, "TDFT", NULL, e1000_regdump},
+	{E1000_TDFHS, "TDFHS", NULL, e1000_regdump},
+	{E1000_TDFTS, "TDFTS", NULL, e1000_regdump},
+	{E1000_TDFPC, "TDFPC", NULL, e1000_regdump},
+
+	/* List Terminator */
+	{}
+};
+
+/*
+ * e1000e_dump - Print registers, tx-ring and rx-ring
+ */
+static void e1000e_dump(struct e1000_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct e1000_hw *hw = &adapter->hw;
+	struct e1000_reg_info *reginfo;
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	struct e1000_tx_desc *tx_desc;
+	struct my_u0 { u64 a; u64 b; } *u0;
+	struct e1000_buffer *buffer_info;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	union e1000_rx_desc_packet_split *rx_desc_ps;
+	struct e1000_rx_desc *rx_desc;
+	struct my_u1 { u64 a; u64 b; u64 c; u64 d; } *u1;
+	u32 staterr;
+	int i = 0;
+
+	/* Print netdevice Info */
+	if (netdev) {
+		dev_err(&adapter->pdev->dev, "Net device Info\n");
+		printk(KERN_ERR "Device Name     state            "
+			"trans_start      last_rx\n");
+		printk(KERN_ERR "%-15s %016lX %016lX %016lX\n",
+			netdev->name,
+			netdev->state,
+			netdev->trans_start,
+			netdev->last_rx);
+	}
+
+	/* Print Registers */
+	if ((dump_flag & E1000_DUMP_REGS) == 0)
+		goto tx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "Register Dump\n");
+	printk(KERN_ERR " Register Name   Value\n");
+	for (reginfo = (struct e1000_reg_info *)e1000_reg_info_tbl;
+	     reginfo->name; reginfo++) {
+		reginfo->dump_reg(hw, reginfo->reg, reginfo->name,
+					reginfo->get_regofs);
+	}
+
+	/* Print TX Ring Summary */
+tx_ring_summary:
+	if (!netdev || !netif_running(netdev))
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC] [bi(ntc)->dma  ]"
+		" leng ntw timestamp\n");
+	buffer_info = &tx_ring->buffer_info[tx_ring->next_to_clean];
+	printk(KERN_ERR " %5d %5X %5X %016llX %04X %3X %016llX\n",
+		0, tx_ring->next_to_use, tx_ring->next_to_clean,
+		(u64)buffer_info->dma,
+		buffer_info->length,
+		buffer_info->next_to_watch,
+		(u64)buffer_info->time_stamp);
+
+	/* Print TX Rings */
+	if ((dump_flag & E1000_DUMP_TX_RINGS) == 0)
+		goto rx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Dump\n");
+
+	/* Transmit Descriptor Formats - DEXT[29] is 0 (Legacy) or 1 (Extended)
+	 *
+	 * Legacy Transmit Descriptor
+	 *   +--------------------------------------------------------------+
+	 * 0 |         Buffer Address [63:0] (Reserved on Write Back)       |
+	 *   +--------------------------------------------------------------+
+	 * 8 | Special  |    CSS     | Status |  CMD    |  CSO   |  Length  |
+	 *   +--------------------------------------------------------------+
+	 *   63       48 47        36 35    32 31     24 23    16 15        0
+	 *
+	 * Extended Context Descriptor (DTYP=0x0) for TSO or checksum offload
+	 *   63      48 47    40 39       32 31             16 15    8 7      0
+	 *   +----------------------------------------------------------------+
+	 * 0 |  TUCSE  | TUCS0  |   TUCSS   |     IPCSE       | IPCS0 | IPCSS |
+	 *   +----------------------------------------------------------------+
+	 * 8 |   MSS   | HDRLEN | RSV | STA | TUCMD | DTYP |      PAYLEN      |
+	 *   +----------------------------------------------------------------+
+	 *   63      48 47    40 39 36 35 32 31   24 23  20 19                0
+	 *
+	 * Extended Data Descriptor (DTYP=0x1)
+	 *   +----------------------------------------------------------------+
+	 * 0 |                     Buffer Address [63:0]                      |
+	 *   +----------------------------------------------------------------+
+	 * 8 | VLAN tag |  POPTS  | Rsvd | Status | Command | DTYP |  DTALEN  |
+	 *   +----------------------------------------------------------------+
+	 *   63       48 47     40 39  36 35    32 31     24 23  20 19        0
+	 */
+	printk(KERN_ERR "Tl[desc]     [address 63:0  ] [SpeCssSCmCsLen]"
+		" [bi->dma       ] leng  ntw timestamp        bi->skb "
+		"<-- Legacy format\n");
+	printk(KERN_ERR "Tc[desc]     [Ce CoCsIpceCoS] [MssHlRSCm0Plen]"
+		" [bi->dma       ] leng  ntw timestamp        bi->skb "
+		"<-- Ext Context format\n");
+	printk(KERN_ERR "Td[desc]     [address 63:0  ] [VlaPoRSCm1Dlen]"
+		" [bi->dma       ] leng  ntw timestamp        bi->skb "
+		"<-- Ext Data format\n");
+	for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
+		tx_desc = E1000_TX_DESC(*tx_ring, i);
+		buffer_info = &tx_ring->buffer_info[i];
+		u0 = (struct my_u0 *)tx_desc;
+		printk(KERN_ERR "T%c[0x%03X]    %016llX %016llX %016llX "
+			"%04X  %3X %016llX %p",
+		       (!(le64_to_cpu(u0->b) & (1<<29)) ? 'l' :
+			((le64_to_cpu(u0->b) & (1<<20)) ? 'd' : 'c')), i,
+		       le64_to_cpu(u0->a), le64_to_cpu(u0->b),
+		       (u64)buffer_info->dma, buffer_info->length,
+		       buffer_info->next_to_watch, (u64)buffer_info->time_stamp,
+		       buffer_info->skb);
+		if (i == tx_ring->next_to_use && i == tx_ring->next_to_clean)
+			printk(KERN_CONT " NTC/U\n");
+		else if (i == tx_ring->next_to_use)
+			printk(KERN_CONT " NTU\n");
+		else if (i == tx_ring->next_to_clean)
+			printk(KERN_CONT " NTC\n");
+		else
+			printk(KERN_CONT "\n");
+
+		if ((dump_flag & E1000_DUMP_BUFFERS) && buffer_info->dma != 0)
+			print_hex_dump(KERN_ERR, "", DUMP_PREFIX_ADDRESS,
+					16, 1, phys_to_virt(buffer_info->dma),
+					buffer_info->length, true);
+	}
+
+	/* Print RX Rings Summary */
+rx_ring_summary:
+	dev_err(&adapter->pdev->dev, "RX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC]\n");
+	printk(KERN_ERR " %5d %5X %5X\n", 0,
+		rx_ring->next_to_use, rx_ring->next_to_clean);
+
+	/* Print RX Rings */
+	if ((dump_flag & E1000_DUMP_RX_RINGS) == 0)
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "RX Rings Dump\n");
+	switch (adapter->rx_ps_pages) {
+	case 1:
+	case 2:
+	case 3:
+		/* [Extended] Packet Split Receive Descriptor Format
+		 *
+		 *    +-----------------------------------------------------+
+		 *  0 |                Buffer Address 0 [63:0]              |
+		 *    +-----------------------------------------------------+
+		 *  8 |                Buffer Address 1 [63:0]              |
+		 *    +-----------------------------------------------------+
+		 * 16 |                Buffer Address 2 [63:0]              |
+		 *    +-----------------------------------------------------+
+		 * 24 |                Buffer Address 3 [63:0]              |
+		 *    +-----------------------------------------------------+
+		 */
+		printk(KERN_ERR "R  [desc]      [buffer 0 63:0 ] "
+			"[buffer 1 63:0 ] "
+		       "[buffer 2 63:0 ] [buffer 3 63:0 ] [bi->dma       ] "
+		       "[bi->skb] <-- Ext Pkt Split format\n");
+		/* [Extended] Receive Descriptor (Write-Back) Format
+		 *
+		 *   63       48 47    32 31     13 12    8 7    4 3        0
+		 *   +------------------------------------------------------+
+		 * 0 | Packet   | IP     |  Rsvd   | MRQ   | Rsvd | MRQ RSS |
+		 *   | Checksum | Ident  |         | Queue |      |  Type   |
+		 *   +------------------------------------------------------+
+		 * 8 | VLAN Tag | Length | Extended Error | Extended Status |
+		 *   +------------------------------------------------------+
+		 *   63       48 47    32 31            20 19               0
+		 */
+		printk(KERN_ERR "RWB[desc]      [ck ipid mrqhsh] "
+			"[vl   l0 ee  es] "
+		       "[ l3  l2  l1 hs] [reserved      ] ---------------- "
+		       "[bi->skb] <-- Ext Rx Write-Back format\n");
+		for (i = 0; i < rx_ring->count; i++) {
+			buffer_info = &rx_ring->buffer_info[i];
+			rx_desc_ps = E1000_RX_DESC_PS(*rx_ring, i);
+			u1 = (struct my_u1 *)rx_desc_ps;
+			staterr =
+				le32_to_cpu(rx_desc_ps->wb.middle.status_error);
+			if (staterr & E1000_RXD_STAT_DD) {
+				/* Descriptor Done */
+				printk(KERN_ERR "RWB[0x%03X]     %016llX "
+					"%016llX %016llX %016llX "
+					"---------------- %p", i,
+					le64_to_cpu(u1->a),
+					le64_to_cpu(u1->b),
+					le64_to_cpu(u1->c),
+					le64_to_cpu(u1->d),
+					buffer_info->skb);
+			} else {
+				printk(KERN_ERR "R  [0x%03X]     %016llX "
+					"%016llX %016llX %016llX %016llX %p", i,
+					le64_to_cpu(u1->a),
+					le64_to_cpu(u1->b),
+					le64_to_cpu(u1->c),
+					le64_to_cpu(u1->d),
+					(u64)buffer_info->dma,
+					buffer_info->skb);
+
+				if (dump_flag & E1000_DUMP_BUFFERS)
+					print_hex_dump(KERN_ERR, "",
+						DUMP_PREFIX_ADDRESS, 16, 1,
+						phys_to_virt(buffer_info->dma),
+						adapter->rx_ps_bsize0, true);
+			}
+
+			if (i == rx_ring->next_to_use)
+				printk(KERN_CONT " NTU\n");
+			else if (i == rx_ring->next_to_clean)
+				printk(KERN_CONT " NTC\n");
+			else
+				printk(KERN_CONT "\n");
+		}
+		break;
+	default:
+	case 0:
+		/* Legacy Receive Descriptor Format
+		 *
+		 * +-----------------------------------------------------+
+		 * |                Buffer Address [63:0]                |
+		 * +-----------------------------------------------------+
+		 * | VLAN Tag | Errors | Status 0 | Packet csum | Length |
+		 * +-----------------------------------------------------+
+		 * 63       48 47    40 39      32 31         16 15      0
+		 */
+		printk(KERN_ERR "Rl[desc]     [address 63:0  ] "
+			"[vl er S cks ln] [bi->dma       ] [bi->skb] "
+			"<-- Legacy format\n");
+		for (i = 0; rx_ring->desc && (i < rx_ring->count); i++) {
+			rx_desc = E1000_RX_DESC(*rx_ring, i);
+			buffer_info = &rx_ring->buffer_info[i];
+			u0 = (struct my_u0 *)rx_desc;
+			printk(KERN_ERR "Rl[0x%03X]    %016llX %016llX "
+				"%016llX %p",
+				i, le64_to_cpu(u0->a), le64_to_cpu(u0->b),
+				(u64)buffer_info->dma, buffer_info->skb);
+			if (i == rx_ring->next_to_use)
+				printk(KERN_CONT " NTU\n");
+			else if (i == rx_ring->next_to_clean)
+				printk(KERN_CONT " NTC\n");
+			else
+				printk(KERN_CONT "\n");
+
+			if (dump_flag & E1000_DUMP_BUFFERS)
+				print_hex_dump(KERN_ERR, "",
+					DUMP_PREFIX_ADDRESS,
+					16, 1, phys_to_virt(buffer_info->dma),
+					adapter->rx_buffer_len, true);
+		}
+	}
+
+exit:
+	return;
+}
+
 /**
  * e1000_desc_unused - calculate if we have unused descriptors
  **/

@@ -4247,6 +4587,7 @@ static void e1000_reset_task(struct work
 	struct e1000_adapter *adapter;
 	adapter = container_of(work, struct e1000_adapter, reset_task);
 
+	e1000e_dump(adapter);
 	e1000e_reinit_locked(adapter);
 }
 

Index: net-next-2.6/drivers/net/e1000e/hw.h
===================================================================
@@ -92,6 +92,11 @@ enum e1e_registers {
 	E1000_FCRTL    = 0x02160, /* Flow Control Receive Threshold Low - RW */
 	E1000_FCRTH    = 0x02168, /* Flow Control Receive Threshold High - RW */
 	E1000_PSRCTL   = 0x02170, /* Packet Split Receive Control - RW */
+	E1000_RDFH     = 0x02410, /* Rx Data FIFO Head - RW */
+	E1000_RDFT     = 0x02418, /* Rx Data FIFO Tail - RW */
+	E1000_RDFHS    = 0x02420, /* Rx Data FIFO Head Saved - RW */
+	E1000_RDFTS    = 0x02428, /* Rx Data FIFO Tail Saved - RW */
+	E1000_RDFPC    = 0x02430, /* Rx Data FIFO Packet Count - RW */
 	E1000_RDBAL    = 0x02800, /* Rx Descriptor Base Address Low - RW */
 	E1000_RDBAH    = 0x02804, /* Rx Descriptor Base Address High - RW */
 	E1000_RDLEN    = 0x02808, /* Rx Descriptor Length - RW */

@@ -101,6 +106,11 @@ enum e1e_registers {
 	E1000_RXDCTL_BASE = 0x02828, /* Rx Descriptor Control - RW */
 #define E1000_RXDCTL(_n)   (E1000_RXDCTL_BASE + (_n << 8))
 	E1000_RADV     = 0x0282C, /* RX Interrupt Absolute Delay Timer - RW */
+	E1000_TDFH     = 0x03410, /* Tx Data FIFO Head - RW */
+	E1000_TDFT     = 0x03418, /* Tx Data FIFO Tail - RW */
+	E1000_TDFHS    = 0x03420, /* Tx Data FIFO Head Saved - RW */
+	E1000_TDFTS    = 0x03428, /* Tx Data FIFO Tail Saved - RW */
+	E1000_TDFPC    = 0x03430, /* Tx Data FIFO Packet Count - RW */
 
 /* Convenience macros
  *

@@ -219,6 +229,23 @@ enum e1e_registers {
 	E1000_HICR      = 0x08F00, /* Host Interface Control */
 };
 
+struct e1000_reg_info {
+	u32 reg;
+	char *name;
+	u32 (*get_regofs)(int);
+	void (*dump_reg)(struct e1000_hw *, u32, char *, u32 (*)(int));
+};
+
+#define E1000_GET_REGOFS_FUNC(name)				\
+static inline u32 get_regofs_##name(int n)			\
+{								\
+	return E1000_##name(n);					\
+}								\
+
+E1000_GET_REGOFS_FUNC(RXDCTL)
+E1000_GET_REGOFS_FUNC(TXDCTL)
+E1000_GET_REGOFS_FUNC(TARC)
+
 #define E1000_MAX_PHY_ADDR		4
 
 /* IGP01E1000 Specific Registers */

Index: net-next-2.6/drivers/net/igb/igb_main.c
===================================================================
@@ -60,6 +60,14 @@ static const struct e1000_info *igb_info
 	[board_82575] = &e1000_82575_info,
 };
 
+static unsigned int dump_flag = 1;
+module_param(dump_flag, uint, 0644);
+MODULE_PARM_DESC(dump_flag, "Dump Flag");
+#define IGB_DUMP_REGS		(1 << 0)
+#define IGB_DUMP_TX_RINGS	(1 << 1)
+#define IGB_DUMP_RX_RINGS	(1 << 2)
+#define IGB_DUMP_BUFFERS	(1 << 3)
+
 static DEFINE_PCI_DEVICE_TABLE(igb_pci_tbl) = {
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_FIBER), board_82575 },

@@ -189,6 +197,291 @@ MODULE_DESCRIPTION("Intel(R) Gigabit Eth
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 
+/*
+ * igb_regdump - register printout routine
+ */
+static void igb_regdump(struct e1000_hw *hw, u32 reg,
+			char *name, u32 (*get_regofs)(int))
+{
+	printk(KERN_ERR "%-15s %08x\n", name, rd32(reg));
+}
+
+/*
+ * igb_regdump_n - register printout routine
+ */
+static void igb_regdump_n(struct e1000_hw *hw, u32 reg,
+			  char *name, u32 (*get_regofs)(int))
+{
+	int n = 0;
+	char rname[16];
+
+	if (!get_regofs)
+		return;
+
+	snprintf(rname, 16, "%s%s", name, "[0-3]");
+	printk(KERN_ERR "%-15s ", rname);
+	for (n = 0; n < 4; n++)
+		printk("%08x ", rd32(get_regofs(n)));
+	printk("\n");
+}
+
+static const struct igb_reg_info igb_reg_info_tbl[] = {
+
+	/* General Registers */
+	{E1000_CTRL, "CTRL", NULL, igb_regdump},
+	{E1000_STATUS, "STATUS", NULL, igb_regdump},
+	{E1000_CTRL_EXT, "CTRL_EXT", NULL, igb_regdump},
+
+	/* Interrupt Registers */
+	{E1000_ICR, "ICR", NULL, igb_regdump},
+
+	/* RX Registers */
+	{E1000_RCTL, "RCTL", NULL, igb_regdump},
+	{E1000_RDLEN(0), "RDLEN", get_regofs_RDLEN, igb_regdump_n},
+	{E1000_RDH(0), "RDH", get_regofs_RDH, igb_regdump_n},
+	{E1000_RDT(0), "RDT", get_regofs_RDT, igb_regdump_n},
+	{E1000_RXDCTL(0), "RXDCTL", get_regofs_RXDCTL, igb_regdump_n},
+	{E1000_RDBAL(0), "RDBAL", get_regofs_RDBAL, igb_regdump_n},
+	{E1000_RDBAH(0), "RDBAH", get_regofs_RDBAH, igb_regdump_n},
+
+	/* TX Registers */
+	{E1000_TCTL, "TCTL", NULL, igb_regdump},
+	{E1000_TDBAL(0), "TDBAL", get_regofs_TDBAL, igb_regdump_n},
+	{E1000_TDBAH(0), "TDBAH", get_regofs_TDBAH, igb_regdump_n},
+	{E1000_TDLEN(0), "TDLEN", get_regofs_TDLEN, igb_regdump_n},
+	{E1000_TDH(0), "TDH", get_regofs_TDH, igb_regdump_n},
+	{E1000_TDT(0), "TDT", get_regofs_TDT, igb_regdump_n},
+	{E1000_TXDCTL(0), "TXDCTL", get_regofs_TXDCTL, igb_regdump_n},
+	{E1000_TDFH, "TDFH", NULL, igb_regdump},
+	{E1000_TDFT, "TDFT", NULL, igb_regdump},
+	{E1000_TDFHS, "TDFHS", NULL, igb_regdump},
+	{E1000_TDFPC, "TDFPC", NULL, igb_regdump},
+
+	/* List Terminator */
+	{}
+};
+
+/*
+ * igb_dump - Print registers, tx-rings and rx-rings
+ */
+static void igb_dump(struct igb_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct e1000_hw *hw = &adapter->hw;
+	struct igb_reg_info *reginfo;
+	int n = 0;
+	struct igb_ring *tx_ring;
+	union e1000_adv_tx_desc *tx_desc;
+	struct my_u0 { u64 a; u64 b; } *u0;
+	struct igb_buffer *buffer_info;
+	struct igb_ring *rx_ring;
+	union e1000_adv_rx_desc *rx_desc;
+	u32 staterr;
+	int i = 0;
+
+	/* Print netdevice Info */
+	if (netdev) {
+		dev_err(&adapter->pdev->dev, "Net device Info\n");
+		printk(KERN_ERR "Device Name     state            "
+			"trans_start      last_rx\n");
+		printk(KERN_ERR "%-15s %016lX %016lX %016lX\n",
+		netdev->name,
+		netdev->state,
+		netdev->trans_start,
+		netdev->last_rx);
+	}
+
+	/* Print Registers */
+	if ((dump_flag & IGB_DUMP_REGS) == 0)
+		goto tx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "Register Dump\n");
+	printk(KERN_ERR " Register Name   [value ]\n");
+	for (reginfo = (struct igb_reg_info *)igb_reg_info_tbl;
+	     reginfo->name; reginfo++) {
+		reginfo->dump_reg(hw, reginfo->reg, reginfo->name,
+					reginfo->get_regofs);
+	}
+
+	/* Print TX Ring Summary */
+tx_ring_summary:
+	if (!netdev || !netif_running(netdev))
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC] [bi(ntc)->dma  ]"
+		" leng ntw timestamp\n");
+	for (n = 0; n < adapter->num_tx_queues; n++) {
+		tx_ring = &adapter->tx_ring[n];
+		buffer_info = &tx_ring->buffer_info[tx_ring->next_to_clean];
+		printk(KERN_ERR " %5d %5X %5X %016llX %04X %3X %016llX\n",
+			   n, tx_ring->next_to_use, tx_ring->next_to_clean,
+			   (u64)buffer_info->dma,
+			   buffer_info->length,
+			   buffer_info->next_to_watch,
+			   (u64)buffer_info->time_stamp);
+	}
+
+	/* Print TX Rings */
+	if ((dump_flag & IGB_DUMP_TX_RINGS) == 0)
+		goto rx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Dump\n");
+
+	/* Transmit Descriptor Formats
+	 *
+	 * Advanced Transmit Descriptor
+	 *   +--------------------------------------------------------------+
+	 * 0 |         Buffer Address [63:0]                                |
+	 *   +--------------------------------------------------------------+
+	 * 8 | PAYLEN  | PORTS  |CC|IDX | STA | DCMD  |DTYP|MAC|RSV| DTALEN |
+	 *   +--------------------------------------------------------------+
+	 *   63      46 45    40 39 38 36 35 32 31   24             15       0
+	 */
+
+	for (n = 0; n < adapter->num_tx_queues; n++) {
+		tx_ring = &adapter->tx_ring[n];
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "TX QUEUE INDEX = %d\n", tx_ring->queue_index);
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "T [desc]     [address 63:0  ] "
+			"[PlPOCIStDDM Ln] [bi->dma       ] "
+			"leng  ntw timestamp        bi->skb\n");
+
+		for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
+			tx_desc = E1000_TX_DESC_ADV(*tx_ring, i);
+			buffer_info = &tx_ring->buffer_info[i];
+			u0 = (struct my_u0 *)tx_desc;
+			printk(KERN_ERR "T [0x%03X]    %016llX %016llX %016llX"
+				" %04X  %3X %016llX %p", i,
+				le64_to_cpu(u0->a),
+				le64_to_cpu(u0->b),
+				(u64)buffer_info->dma,
+				buffer_info->length,
+				buffer_info->next_to_watch,
+				(u64)buffer_info->time_stamp,
+				buffer_info->skb);
+			if (i == tx_ring->next_to_use &&
+				i == tx_ring->next_to_clean)
+				printk(" NTC/U\n");
+			else if (i == tx_ring->next_to_use)
+				printk(" NTU\n");
+			else if (i == tx_ring->next_to_clean)
+				printk(" NTC\n");
+			else
+				printk("\n");
+
+			if ((dump_flag & IGB_DUMP_BUFFERS) &&
+				buffer_info->dma != 0)
+				print_hex_dump(KERN_ERR, "",
+					DUMP_PREFIX_ADDRESS,
+					16, 1, phys_to_virt(buffer_info->dma),
+					buffer_info->length, true);
+		}
+	}
+
+	/* Print RX Rings Summary */
+rx_ring_summary:
+	dev_err(&adapter->pdev->dev, "RX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC]\n");
+	for (n = 0; n < adapter->num_rx_queues; n++) {
+		rx_ring = &adapter->rx_ring[n];
+		printk(KERN_ERR " %5d %5X %5X\n", n,
+			   rx_ring->next_to_use, rx_ring->next_to_clean);
+	}
+
+	/* Print RX Rings */
+	if ((dump_flag & IGB_DUMP_RX_RINGS) == 0)
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "RX Rings Dump\n");
+
+	/* Advanced Receive Descriptor (Read) Format
+	 *    63                                           1        0
+	 *    +-----------------------------------------------------+
+	 *  0 |       Packet Buffer Address [63:1]           |A0/NSE|
+	 *    +----------------------------------------------+------+
+	 *  8 |       Header Buffer Address [63:1]           |  DD  |
+	 *    +-----------------------------------------------------+
+	 *
+	 *
+	 * Advanced Receive Descriptor (Write-Back) Format
+	 *
+	 *   63       48 47    32 31  30      21 20 17 16   4 3     0
+	 *   +------------------------------------------------------+
+	 * 0 | Packet     IP     |SPH| HDR_LEN   | RSV|Packet|  RSS |
+	 *   | Checksum   Ident  |   |           |    | Type | Type |
+	 *   +------------------------------------------------------+
+	 * 8 | VLAN Tag | Length | Extended Error | Extended Status |
+	 *   +------------------------------------------------------+
+	 *   63       48 47    32 31            20 19               0
+	 */
+
+	for (n = 0; n < adapter->num_rx_queues; n++) {
+		rx_ring = &adapter->rx_ring[n];
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "RX QUEUE INDEX = %d\n", rx_ring->queue_index);
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "R  [desc]      [ PktBuf     A0] "
+			"[  HeadBuf   DD] [bi->dma       ] [bi->skb] "
+			"<-- Adv Rx Read format\n");
+		printk(KERN_ERR "RWB[desc]      [PcsmIpSHl PtRs] "
+			"[vl er S cks ln] ---------------- [bi->skb] "
+			"<-- Adv Rx Write-Back format\n");
+
+		for (i = 0; i < rx_ring->count; i++) {
+			buffer_info = &rx_ring->buffer_info[i];
+			rx_desc = E1000_RX_DESC_ADV(*rx_ring, i);
+			u0 = (struct my_u0 *)rx_desc;
+			staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+			if (staterr & E1000_RXD_STAT_DD) {
+				/* Descriptor Done */
+				printk(KERN_ERR "RWB[0x%03X]     %016llX "
+					"%016llX ---------------- %p", i,
+					le64_to_cpu(u0->a),
+					le64_to_cpu(u0->b),
+					buffer_info->skb);
+			} else {
+				printk(KERN_ERR "R  [0x%03X]     %016llX "
+					"%016llX %016llX %p", i,
+					le64_to_cpu(u0->a),
+					le64_to_cpu(u0->b),
+					(u64)buffer_info->dma,
+					buffer_info->skb);
+
+				if (dump_flag & IGB_DUMP_BUFFERS) {
+					print_hex_dump(KERN_ERR, "",
+						DUMP_PREFIX_ADDRESS,
+						16, 1,
+						phys_to_virt(buffer_info->dma),
+						rx_ring->rx_buffer_len, true);
+					if (rx_ring->rx_buffer_len
+						< IGB_RXBUFFER_1024)
+						print_hex_dump(KERN_ERR, "",
+						  DUMP_PREFIX_ADDRESS,
+						  16, 1,
+						  phys_to_virt(
+						    buffer_info->page_dma +
+						    buffer_info->page_offset),
+						  PAGE_SIZE/2, true);
+				}
+			}
+
+			if (i == rx_ring->next_to_use)
+				printk(" NTU\n");
+			else if (i == rx_ring->next_to_clean)
+				printk(" NTC\n");
+			else
+				printk("\n");
+
+		}
+	}
+
+exit:
+	return;
+}
+
+
 /**
  * igb_read_clock - read raw cycle counter (to be used by time counter)
  */

@@ -3854,6 +4147,7 @@ static void igb_reset_task(struct work_s
 	struct igb_adapter *adapter;
 	adapter = container_of(work, struct igb_adapter, reset_task);
 
+	igb_dump(adapter);
 	igb_reinit_locked(adapter);
 }
 

Index: net-next-2.6/drivers/net/igb/e1000_regs.h
===================================================================
@@ -322,4 +322,25 @@
 
 /* DMA Coalescing registers */
 #define E1000_PCIEMISC          0x05BB8 /* PCIE misc config register */
+
+
+#define IGB_GET_REGOFS_FUNC(name)				\
+static inline u32 get_regofs_##name(int n)			\
+{								\
+	return E1000_##name(n);					\
+}								\
+
+IGB_GET_REGOFS_FUNC(RDLEN)
+IGB_GET_REGOFS_FUNC(RDH)
+IGB_GET_REGOFS_FUNC(RDT)
+IGB_GET_REGOFS_FUNC(RXDCTL)
+IGB_GET_REGOFS_FUNC(RDBAL)
+IGB_GET_REGOFS_FUNC(RDBAH)
+IGB_GET_REGOFS_FUNC(TDBAL)
+IGB_GET_REGOFS_FUNC(TDBAH)
+IGB_GET_REGOFS_FUNC(TDLEN)
+IGB_GET_REGOFS_FUNC(TDH)
+IGB_GET_REGOFS_FUNC(TDT)
+IGB_GET_REGOFS_FUNC(TXDCTL)
+
 #endif

Index: net-next-2.6/drivers/net/igb/e1000_hw.h
===================================================================
@@ -508,6 +508,13 @@ struct e1000_hw {
 	u8  revision_id;
 };
 
+struct igb_reg_info {
+	u32 reg;
+	char *name;
+	u32 (*get_regofs)(int);
+	void (*dump_reg)(struct e1000_hw *, u32, char *, u32 (*)(int));
+};
+
 #ifdef DEBUG
 extern char *igb_get_hw_dev_name(struct e1000_hw *hw);
 #define hw_dbg(format, arg...) \

Index: net-next-2.6/drivers/net/igb/igb_main.c
===================================================================
@@ -60,6 +60,14 @@ static const struct e1000_info *igb_info
 	[board_82575] = &e1000_82575_info,
 };
 
+static unsigned int dump_flag = 1;
+module_param(dump_flag, uint, 0644);
+MODULE_PARM_DESC(dump_flag, "Dump Flag");
+#define IGB_DUMP_REGS		(1 << 0)
+#define IGB_DUMP_TX_RINGS	(1 << 1)
+#define IGB_DUMP_RX_RINGS	(1 << 2)
+#define IGB_DUMP_BUFFERS	(1 << 3)
+
 static DEFINE_PCI_DEVICE_TABLE(igb_pci_tbl) = {
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_FIBER), board_82575 },

@@ -189,6 +197,291 @@ MODULE_DESCRIPTION("Intel(R) Gigabit Eth
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 
+/*
+ * igb_regdump - register printout routine
+ */
+static void igb_regdump(struct e1000_hw *hw, u32 reg,
+			char *name, u32 (*get_regofs)(int))
+{
+	printk(KERN_ERR "%-15s %08x\n", name, rd32(reg));
+}
+
+/*
+ * igb_regdump_n - register printout routine
+ */
+static void igb_regdump_n(struct e1000_hw *hw, u32 reg,
+			  char *name, u32 (*get_regofs)(int))
+{
+	int n = 0;
+	char rname[16];
+
+	if (!get_regofs)
+		return;
+
+	snprintf(rname, 16, "%s%s", name, "[0-3]");
+	printk(KERN_ERR "%-15s ", rname);
+	for (n = 0; n < 4; n++)
+		printk(KERN_CONT "%08x ", rd32(get_regofs(n)));
+	printk(KERN_CONT "\n");
+}
+
+static const struct igb_reg_info igb_reg_info_tbl[] = {
+
+	/* General Registers */
+	{E1000_CTRL, "CTRL", NULL, igb_regdump},
+	{E1000_STATUS, "STATUS", NULL, igb_regdump},
+	{E1000_CTRL_EXT, "CTRL_EXT", NULL, igb_regdump},
+
+	/* Interrupt Registers */
+	{E1000_ICR, "ICR", NULL, igb_regdump},
+
+	/* RX Registers */
+	{E1000_RCTL, "RCTL", NULL, igb_regdump},
+	{E1000_RDLEN(0), "RDLEN", get_regofs_RDLEN, igb_regdump_n},
+	{E1000_RDH(0), "RDH", get_regofs_RDH, igb_regdump_n},
+	{E1000_RDT(0), "RDT", get_regofs_RDT, igb_regdump_n},
+	{E1000_RXDCTL(0), "RXDCTL", get_regofs_RXDCTL, igb_regdump_n},
+	{E1000_RDBAL(0), "RDBAL", get_regofs_RDBAL, igb_regdump_n},
+	{E1000_RDBAH(0), "RDBAH", get_regofs_RDBAH, igb_regdump_n},
+
+	/* TX Registers */
+	{E1000_TCTL, "TCTL", NULL, igb_regdump},
+	{E1000_TDBAL(0), "TDBAL", get_regofs_TDBAL, igb_regdump_n},
+	{E1000_TDBAH(0), "TDBAH", get_regofs_TDBAH, igb_regdump_n},
+	{E1000_TDLEN(0), "TDLEN", get_regofs_TDLEN, igb_regdump_n},
+	{E1000_TDH(0), "TDH", get_regofs_TDH, igb_regdump_n},
+	{E1000_TDT(0), "TDT", get_regofs_TDT, igb_regdump_n},
+	{E1000_TXDCTL(0), "TXDCTL", get_regofs_TXDCTL, igb_regdump_n},
+	{E1000_TDFH, "TDFH", NULL, igb_regdump},
+	{E1000_TDFT, "TDFT", NULL, igb_regdump},
+	{E1000_TDFHS, "TDFHS", NULL, igb_regdump},
+	{E1000_TDFPC, "TDFPC", NULL, igb_regdump},
+
+	/* List Terminator */
+	{}
+};
+
+/*
+ * igb_dump - Print registers, tx-rings and rx-rings
+ */
+static void igb_dump(struct igb_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct e1000_hw *hw = &adapter->hw;
+	struct igb_reg_info *reginfo;
+	int n = 0;
+	struct igb_ring *tx_ring;
+	union e1000_adv_tx_desc *tx_desc;
+	struct my_u0 { u64 a; u64 b; } *u0;
+	struct igb_buffer *buffer_info;
+	struct igb_ring *rx_ring;
+	union e1000_adv_rx_desc *rx_desc;
+	u32 staterr;
+	int i = 0;
+
+	/* Print netdevice Info */
+	if (netdev) {
+		dev_err(&adapter->pdev->dev, "Net device Info\n");
+		printk(KERN_ERR "Device Name     state            "
+			"trans_start      last_rx\n");
+		printk(KERN_ERR "%-15s %016lX %016lX %016lX\n",
+		netdev->name,
+		netdev->state,
+		netdev->trans_start,
+		netdev->last_rx);
+	}
+
+	/* Print Registers */
+	if ((dump_flag & IGB_DUMP_REGS) == 0)
+		goto tx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "Register Dump\n");
+	printk(KERN_ERR " Register Name   Value \n");
+	for (reginfo = (struct igb_reg_info *)igb_reg_info_tbl;
+	     reginfo->name; reginfo++) {
+		reginfo->dump_reg(hw, reginfo->reg, reginfo->name,
+					reginfo->get_regofs);
+	}
+
+	/* Print TX Ring Summary */
+tx_ring_summary:
+	if (!netdev || !netif_running(netdev))
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC] [bi(ntc)->dma  ]"
+		" leng ntw timestamp\n");
+	for (n = 0; n < adapter->num_tx_queues; n++) {
+		tx_ring = &adapter->tx_ring[n];
+		buffer_info = &tx_ring->buffer_info[tx_ring->next_to_clean];
+		printk(KERN_ERR " %5d %5X %5X %016llX %04X %3X %016llX\n",
+			   n, tx_ring->next_to_use, tx_ring->next_to_clean,
+			   (u64)buffer_info->dma,
+			   buffer_info->length,
+			   buffer_info->next_to_watch,
+			   (u64)buffer_info->time_stamp);
+	}
+
+	/* Print TX Rings */
+	if ((dump_flag & IGB_DUMP_TX_RINGS) == 0)
+		goto rx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Dump\n");
+
+	/* Transmit Descriptor Formats
+	 *
+	 * Advanced Transmit Descriptor
+	 *   +--------------------------------------------------------------+
+	 * 0 |         Buffer Address [63:0]                                |
+	 *   +--------------------------------------------------------------+
+	 * 8 | PAYLEN  | PORTS  |CC|IDX | STA | DCMD  |DTYP|MAC|RSV| DTALEN |
+	 *   +--------------------------------------------------------------+
+	 *   63      46 45    40 39 38 36 35 32 31   24             15       0
+	 */
+
+	for (n = 0; n < adapter->num_tx_queues; n++) {
+		tx_ring = &adapter->tx_ring[n];
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "TX QUEUE INDEX = %d\n", tx_ring->queue_index);
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "T [desc]     [address 63:0  ] "
+			"[PlPOCIStDDM Ln] [bi->dma       ] "
+			"leng  ntw timestamp        bi->skb\n");
+
+		for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
+			tx_desc = E1000_TX_DESC_ADV(*tx_ring, i);
+			buffer_info = &tx_ring->buffer_info[i];
+			u0 = (struct my_u0 *)tx_desc;
+			printk(KERN_ERR "T [0x%03X]    %016llX %016llX %016llX"
+				" %04X  %3X %016llX %p", i,
+				le64_to_cpu(u0->a),
+				le64_to_cpu(u0->b),
+				(u64)buffer_info->dma,
+				buffer_info->length,
+				buffer_info->next_to_watch,
+				(u64)buffer_info->time_stamp,
+				buffer_info->skb);
+			if (i == tx_ring->next_to_use &&
+				i == tx_ring->next_to_clean)
+				printk(KERN_CONT " NTC/U\n");
+			else if (i == tx_ring->next_to_use)
+				printk(KERN_CONT " NTU\n");
+			else if (i == tx_ring->next_to_clean)
+				printk(KERN_CONT " NTC\n");
+			else
+				printk(KERN_CONT "\n");
+
+			if ((dump_flag & IGB_DUMP_BUFFERS) &&
+				buffer_info->dma != 0)
+				print_hex_dump(KERN_ERR, "",
+					DUMP_PREFIX_ADDRESS,
+					16, 1, phys_to_virt(buffer_info->dma),
+					buffer_info->length, true);
+		}
+	}
+
+	/* Print RX Rings Summary */
+rx_ring_summary:
+	dev_err(&adapter->pdev->dev, "RX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC]\n");
+	for (n = 0; n < adapter->num_rx_queues; n++) {
+		rx_ring = &adapter->rx_ring[n];
+		printk(KERN_ERR " %5d %5X %5X\n", n,
+			   rx_ring->next_to_use, rx_ring->next_to_clean);
+	}
+
+	/* Print RX Rings */
+	if ((dump_flag & IGB_DUMP_RX_RINGS) == 0)
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "RX Rings Dump\n");
+
+	/* Advanced Receive Descriptor (Read) Format
+	 *    63                                           1        0
+	 *    +-----------------------------------------------------+
+	 *  0 |       Packet Buffer Address [63:1]           |A0/NSE|
+	 *    +----------------------------------------------+------+
+	 *  8 |       Header Buffer Address [63:1]           |  DD  |
+	 *    +-----------------------------------------------------+
+	 *
+	 *
+	 * Advanced Receive Descriptor (Write-Back) Format
+	 *
+	 *   63       48 47    32 31  30      21 20 17 16   4 3     0
+	 *   +------------------------------------------------------+
+	 * 0 | Packet     IP     |SPH| HDR_LEN   | RSV|Packet|  RSS |
+	 *   | Checksum   Ident  |   |           |    | Type | Type |
+	 *   +------------------------------------------------------+
+	 * 8 | VLAN Tag | Length | Extended Error | Extended Status |
+	 *   +------------------------------------------------------+
+	 *   63       48 47    32 31            20 19               0
+	 */
+
+	for (n = 0; n < adapter->num_rx_queues; n++) {
+		rx_ring = &adapter->rx_ring[n];
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "RX QUEUE INDEX = %d\n", rx_ring->queue_index);
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "R  [desc]      [ PktBuf     A0] "
+			"[  HeadBuf   DD] [bi->dma       ] [bi->skb] "
+			"<-- Adv Rx Read format\n");
+		printk(KERN_ERR "RWB[desc]      [PcsmIpSHl PtRs] "
+			"[vl er S cks ln] ---------------- [bi->skb] "
+			"<-- Adv Rx Write-Back format\n");
+
+		for (i = 0; i < rx_ring->count; i++) {
+			buffer_info = &rx_ring->buffer_info[i];
+			rx_desc = E1000_RX_DESC_ADV(*rx_ring, i);
+			u0 = (struct my_u0 *)rx_desc;
+			staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+			if (staterr & E1000_RXD_STAT_DD) {
+				/* Descriptor Done */
+				printk(KERN_ERR "RWB[0x%03X]     %016llX "
+					"%016llX ---------------- %p", i,
+					le64_to_cpu(u0->a),
+					le64_to_cpu(u0->b),
+					buffer_info->skb);
+			} else {
+				printk(KERN_ERR "R  [0x%03X]     %016llX "
+					"%016llX %016llX %p", i,
+					le64_to_cpu(u0->a),
+					le64_to_cpu(u0->b),
+					(u64)buffer_info->dma,
+					buffer_info->skb);
+
+				if (dump_flag & IGB_DUMP_BUFFERS) {
+					print_hex_dump(KERN_ERR, "",
+						DUMP_PREFIX_ADDRESS,
+						16, 1,
+						phys_to_virt(buffer_info->dma),
+						rx_ring->rx_buffer_len, true);
+					if (rx_ring->rx_buffer_len
+						< IGB_RXBUFFER_1024)
+						print_hex_dump(KERN_ERR, "",
+						  DUMP_PREFIX_ADDRESS,
+						  16, 1,
+						  phys_to_virt(
+						    buffer_info->page_dma +
+						    buffer_info->page_offset),
+						  PAGE_SIZE/2, true);
+				}
+			}
+
+			if (i == rx_ring->next_to_use)
+				printk(KERN_CONT " NTU\n");
+			else if (i == rx_ring->next_to_clean)
+				printk(KERN_CONT " NTC\n");
+			else
+				printk(KERN_CONT "\n");
+
+		}
+	}
+
+exit:
+	return;
+}
+
+
 /**
  * igb_read_clock - read raw cycle counter (to be used by time counter)
  */

@@ -3854,6 +4147,7 @@ static void igb_reset_task(struct work_s
 	struct igb_adapter *adapter;
 	adapter = container_of(work, struct igb_adapter, reset_task);
 
+	igb_dump(adapter);
 	igb_reinit_locked(adapter);
 }
 

Index: net-next-2.6/drivers/net/igb/e1000_regs.h
===================================================================
@@ -322,4 +322,25 @@
 
 /* DMA Coalescing registers */
 #define E1000_PCIEMISC          0x05BB8 /* PCIE misc config register */
+
+
+#define IGB_GET_REGOFS_FUNC(name)				\
+static inline u32 get_regofs_##name(int n)			\
+{								\
+	return E1000_##name(n);					\
+}								\
+
+IGB_GET_REGOFS_FUNC(RDLEN)
+IGB_GET_REGOFS_FUNC(RDH)
+IGB_GET_REGOFS_FUNC(RDT)
+IGB_GET_REGOFS_FUNC(RXDCTL)
+IGB_GET_REGOFS_FUNC(RDBAL)
+IGB_GET_REGOFS_FUNC(RDBAH)
+IGB_GET_REGOFS_FUNC(TDBAL)
+IGB_GET_REGOFS_FUNC(TDBAH)
+IGB_GET_REGOFS_FUNC(TDLEN)
+IGB_GET_REGOFS_FUNC(TDH)
+IGB_GET_REGOFS_FUNC(TDT)
+IGB_GET_REGOFS_FUNC(TXDCTL)
+
 #endif

Index: net-next-2.6/drivers/net/igb/e1000_hw.h
===================================================================
@@ -508,6 +508,13 @@ struct e1000_hw {
 	u8  revision_id;
 };
 
+struct igb_reg_info {
+	u32 reg;
+	char *name;
+	u32 (*get_regofs)(int);
+	void (*dump_reg)(struct e1000_hw *, u32, char *, u32 (*)(int));
+};
+
 #ifdef DEBUG
 extern char *igb_get_hw_dev_name(struct e1000_hw *hw);
 #define hw_dbg(format, arg...) \

Index: net-next-2.6/drivers/net/ixgbe/ixgbe_main.c
===================================================================
@@ -60,6 +60,15 @@ static const struct ixgbe_info *ixgbe_in
 	[board_82599] = &ixgbe_82599_info,
 };
 
+
+static unsigned int dump_flag = 1;
+module_param(dump_flag, uint, 0644);
+MODULE_PARM_DESC(dump_flag, "Dump Flag");
+#define IXGBE_DUMP_REGS		(1 << 0)
+#define IXGBE_DUMP_TX_RINGS	(1 << 1)
+#define IXGBE_DUMP_RX_RINGS	(1 << 2)
+#define IXGBE_DUMP_BUFFERS	(1 << 3)
+
 /* ixgbe_pci_tbl - PCI Device ID Table
  *
  * Wildcard entries (PCI_ANY_ID) should come last

@@ -174,6 +183,289 @@ static inline void ixgbe_disable_sriov(s
 	adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
 }
 
+/*
+ * ixgbe_regdump - register printout routine
+ */
+static void ixgbe_regdump(struct ixgbe_hw *hw, u32 reg,
+			  char *name, u32 (*get_regofs)(int))
+{
+	printk(KERN_ERR "%-15s %08x\n", name, IXGBE_READ_REG(hw, reg));
+}
+
+/*
+ * ixgbe_regdump_n - register printout routine
+ */
+static void ixgbe_regdump_n(struct ixgbe_hw *hw, u32 reg,
+			    char *name, u32 (*get_regofs)(int))
+{
+	int i = 0, j = 0;
+	char rname[16];
+
+	if (!get_regofs)
+		return;
+
+	for (i = 0; i < 8; i++) {
+		snprintf(rname, 16, "%s[%d-%d]", name, i*8, i*8+7);
+		printk(KERN_ERR "%-15s ", rname);
+		for (j = 0; j < 8; j++)
+			printk("%08x ", IXGBE_READ_REG(hw, get_regofs(i*8+j)));
+		printk("\n");
+	}
+}
+
+static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = {
+
+	/* General Registers */
+	{IXGBE_CTRL, "CTRL", NULL, ixgbe_regdump},
+	{IXGBE_STATUS, "STATUS", NULL, ixgbe_regdump},
+	{IXGBE_CTRL_EXT, "CTRL_EXT", NULL, ixgbe_regdump},
+
+	/* Interrupt Registers */
+	{IXGBE_EICR, "EICR", NULL, ixgbe_regdump},
+
+	/* RX Registers */
+	{IXGBE_SRRCTL(0), "SRRCTL", get_regofs_SRRCTL, ixgbe_regdump_n},
+	{IXGBE_DCA_RXCTRL(0), "DRXCTL", get_regofs_DCA_RXCTRL, ixgbe_regdump_n},
+	{IXGBE_RDLEN(0), "RDLEN", get_regofs_RDLEN, ixgbe_regdump_n},
+	{IXGBE_RDH(0), "RDH", get_regofs_RDH, ixgbe_regdump_n},
+	{IXGBE_RDT(0), "RDT", get_regofs_RDT, ixgbe_regdump_n},
+	{IXGBE_RXDCTL(0), "RXDCTL", get_regofs_RXDCTL, ixgbe_regdump_n},
+	{IXGBE_RDBAL(0), "RDBAL", get_regofs_RDBAL, ixgbe_regdump_n},
+	{IXGBE_RDBAH(0), "RDBAH", get_regofs_RDBAH, ixgbe_regdump_n},
+
+	/* TX Registers */
+	{IXGBE_TDBAL(0), "TDBAL", get_regofs_TDBAL, ixgbe_regdump_n},
+	{IXGBE_TDBAH(0), "TDBAH", get_regofs_TDBAH, ixgbe_regdump_n},
+	{IXGBE_TDLEN(0), "TDLEN", get_regofs_TDLEN, ixgbe_regdump_n},
+	{IXGBE_TDH(0), "TDH", get_regofs_TDH, ixgbe_regdump_n},
+	{IXGBE_TDT(0), "TDT", get_regofs_TDT, ixgbe_regdump_n},
+	{IXGBE_TXDCTL(0), "TXDCTL", get_regofs_TXDCTL, ixgbe_regdump_n},
+
+	/* List Terminator */
+	{}
+};
+
+/*
+ * ixgbe_dump - Print registers, tx-rings and rx-rings
+ */
+static void ixgbe_dump(struct ixgbe_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_reg_info *reginfo;
+	int n = 0;
+	struct ixgbe_ring *tx_ring;
+	struct ixgbe_tx_buffer *tx_buffer_info;
+	union ixgbe_adv_tx_desc *tx_desc;
+	struct my_u0 { u64 a; u64 b; } *u0;
+	struct ixgbe_ring *rx_ring;
+	union ixgbe_adv_rx_desc *rx_desc;
+	struct ixgbe_rx_buffer *rx_buffer_info;
+	u32 staterr;
+	int i = 0;
+
+	/* Print netdevice Info */
+	dev_err(&adapter->pdev->dev, "Net device Info\n");
+	if (netdev) {
+		printk(KERN_ERR "Device Name     state            "
+			"trans_start      last_rx\n");
+		printk(KERN_ERR "%-15s %016lX %016lX %016lX\n",
+		netdev->name,
+		netdev->state,
+		netdev->trans_start,
+		netdev->last_rx);
+	}
+
+	/* Print Registers */
+	if ((dump_flag & IXGBE_DUMP_REGS) == 0)
+		goto tx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "Register Dump\n");
+	printk(KERN_ERR " Register Name   [value ]\n");
+	for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl;
+	     reginfo->name; reginfo++) {
+		reginfo->dump_reg(hw, reginfo->reg, reginfo->name,
+					reginfo->get_regofs);
+	}
+
+	/* Print TX Ring Summary */
+tx_ring_summary:
+	if (!netdev || !netif_running(netdev))
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC] [bi(ntc)->dma  ] "
+		"leng ntw timestamp\n");
+	for (n = 0; n < adapter->num_tx_queues; n++) {
+		tx_ring = &adapter->tx_ring[n];
+		tx_buffer_info =
+			&tx_ring->tx_buffer_info[tx_ring->next_to_clean];
+		printk(KERN_ERR " %5d %5X %5X %016llX %04X %3X %016llX\n",
+			   n, tx_ring->next_to_use, tx_ring->next_to_clean,
+			   (u64)tx_buffer_info->dma,
+			   tx_buffer_info->length,
+			   tx_buffer_info->next_to_watch,
+			   (u64)tx_buffer_info->time_stamp);
+	}
+
+	/* Print TX Rings */
+	if ((dump_flag & IXGBE_DUMP_TX_RINGS) == 0)
+		goto rx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Dump\n");
+
+	/* Transmit Descriptor Formats
+	 *
+	 * Advanced Transmit Descriptor
+	 *   +--------------------------------------------------------------+
+	 * 0 |         Buffer Address [63:0]                                |
+	 *   +--------------------------------------------------------------+
+	 * 8 |  PAYLEN  | PORTS  | IDX | STA | DCMD  |DTYP |  RSV |  DTALEN |
+	 *   +--------------------------------------------------------------+
+	 *   63       46 45    40 39 36 35 32 31   24 23 20 19              0
+	 */
+
+	for (n = 0; n < adapter->num_tx_queues; n++) {
+		tx_ring = &adapter->tx_ring[n];
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "TX QUEUE INDEX = %d\n", tx_ring->queue_index);
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "T [desc]     [address 63:0  ] "
+			"[PlPOIdStDDt Ln] [bi->dma       ] "
+			"leng  ntw timestamp        bi->skb\n");
+
+		for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
+			tx_desc = IXGBE_TX_DESC_ADV(*tx_ring, i);
+			tx_buffer_info = &tx_ring->tx_buffer_info[i];
+			u0 = (struct my_u0 *)tx_desc;
+			printk(KERN_ERR "T [0x%03X]    %016llX %016llX %016llX"
+				" %04X  %3X %016llX %p", i,
+				le64_to_cpu(u0->a),
+				le64_to_cpu(u0->b),
+				(u64)tx_buffer_info->dma,
+				tx_buffer_info->length,
+				tx_buffer_info->next_to_watch,
+				(u64)tx_buffer_info->time_stamp,
+				tx_buffer_info->skb);
+			if (i == tx_ring->next_to_use &&
+				i == tx_ring->next_to_clean)
+				printk(" NTC/U\n");
+			else if (i == tx_ring->next_to_use)
+				printk(" NTU\n");
+			else if (i == tx_ring->next_to_clean)
+				printk(" NTC\n");
+			else
+				printk("\n");
+
+			if ((dump_flag & IXGBE_DUMP_BUFFERS) &&
+				tx_buffer_info->dma != 0)
+				print_hex_dump(KERN_ERR, "",
+					DUMP_PREFIX_ADDRESS, 16, 1,
+					phys_to_virt(tx_buffer_info->dma),
+					tx_buffer_info->length, true);
+		}
+	}
+
+	/* Print RX Rings Summary */
+rx_ring_summary:
+	dev_err(&adapter->pdev->dev, "RX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC]\n");
+	for (n = 0; n < adapter->num_rx_queues; n++) {
+		rx_ring = &adapter->rx_ring[n];
+		printk(KERN_ERR "%5d %5X %5X\n", n,
+			   rx_ring->next_to_use, rx_ring->next_to_clean);
+	}
+
+	/* Print RX Rings */
+	if ((dump_flag & IXGBE_DUMP_RX_RINGS) == 0)
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "RX Rings Dump\n");
+
+	/* Advanced Receive Descriptor (Read) Format
+	 *    63                                           1        0
+	 *    +-----------------------------------------------------+
+	 *  0 |       Packet Buffer Address [63:1]           |A0/NSE|
+	 *    +----------------------------------------------+------+
+	 *  8 |       Header Buffer Address [63:1]           |  DD  |
+	 *    +-----------------------------------------------------+
+	 *
+	 *
+	 * Advanced Receive Descriptor (Write-Back) Format
+	 *
+	 *   63       48 47    32 31  30      21 20 16 15   4 3     0
+	 *   +------------------------------------------------------+
+	 * 0 | Packet     IP     |SPH| HDR_LEN   | RSV|Packet|  RSS |
+	 *   | Checksum   Ident  |   |           |    | Type | Type |
+	 *   +------------------------------------------------------+
+	 * 8 | VLAN Tag | Length | Extended Error | Extended Status |
+	 *   +------------------------------------------------------+
+	 *   63       48 47    32 31            20 19               0
+	 */
+	for (n = 0; n < adapter->num_rx_queues; n++) {
+		rx_ring = &adapter->rx_ring[n];
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "RX QUEUE INDEX = %d\n", rx_ring->queue_index);
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "R  [desc]      [ PktBuf     A0] "
+			"[  HeadBuf   DD] [bi->dma       ] [bi->skb] "
+			"<-- Adv Rx Read format\n");
+		printk(KERN_ERR "RWB[desc]      [PcsmIpSHl PtRs] "
+			"[vl er S cks ln] ---------------- [bi->skb] "
+			"<-- Adv Rx Write-Back format\n");
+
+		for (i = 0; i < rx_ring->count; i++) {
+			rx_buffer_info = &rx_ring->rx_buffer_info[i];
+			rx_desc = IXGBE_RX_DESC_ADV(*rx_ring, i);
+			u0 = (struct my_u0 *)rx_desc;
+			staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+			if (staterr & IXGBE_RXD_STAT_DD) {
+				/* Descriptor Done */
+				printk(KERN_ERR "RWB[0x%03X]     %016llX "
+					"%016llX ---------------- %p", i,
+					le64_to_cpu(u0->a),
+					le64_to_cpu(u0->b),
+					rx_buffer_info->skb);
+			} else {
+				printk(KERN_ERR "R  [0x%03X]     %016llX "
+					"%016llX %016llX %p", i,
+					le64_to_cpu(u0->a),
+					le64_to_cpu(u0->b),
+					(u64)rx_buffer_info->dma,
+					rx_buffer_info->skb);
+
+				if (dump_flag & IXGBE_DUMP_BUFFERS) {
+					print_hex_dump(KERN_ERR, "",
+					   DUMP_PREFIX_ADDRESS, 16, 1,
+					   phys_to_virt(rx_buffer_info->dma),
+					   rx_ring->rx_buf_len, true);
+
+					if (rx_ring->rx_buf_len
+						< IXGBE_RXBUFFER_2048)
+						print_hex_dump(KERN_ERR, "",
+						  DUMP_PREFIX_ADDRESS, 16, 1,
+						  phys_to_virt(
+						    rx_buffer_info->page_dma +
+						    rx_buffer_info->page_offset
+						  ),
+						  PAGE_SIZE/2, true);
+				}
+			}
+
+			if (i == rx_ring->next_to_use)
+				printk(" NTU\n");
+			else if (i == rx_ring->next_to_clean)
+				printk(" NTC\n");
+			else
+				printk("\n");
+
+		}
+	}
+
+exit:
+	return;
+}
+
 static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter)
 {
 	u32 ctrl_ext;

@@ -3306,6 +3598,7 @@ static void ixgbe_reset_task(struct work
 
 	adapter->tx_timeout_count++;
 
+	ixgbe_dump(adapter);
 	ixgbe_reinit_locked(adapter);
 }
 

Index: net-next-2.6/drivers/net/ixgbe/ixgbe_type.h
===================================================================
@@ -2568,4 +2568,33 @@ struct ixgbe_info {
 #define IXGBE_ERR_EEPROM_VERSION                -24
 #define IXGBE_NOT_IMPLEMENTED                   0x7FFFFFFF
 
+
+struct ixgbe_reg_info {
+	u32 reg;
+	char *name;
+	u32 (*get_regofs)(int);
+	void (*dump_reg)(struct ixgbe_hw *, u32, char *, u32 (*)(int));
+};
+
+#define IXGBE_GET_REGOFS_FUNC(name)				\
+static inline u32 get_regofs_##name(int n)			\
+{								\
+	return IXGBE_##name(n);					\
+}								\
+
+IXGBE_GET_REGOFS_FUNC(SRRCTL)
+IXGBE_GET_REGOFS_FUNC(DCA_RXCTRL)
+IXGBE_GET_REGOFS_FUNC(RDLEN)
+IXGBE_GET_REGOFS_FUNC(RDH)
+IXGBE_GET_REGOFS_FUNC(RDT)
+IXGBE_GET_REGOFS_FUNC(RXDCTL)
+IXGBE_GET_REGOFS_FUNC(RDBAL)
+IXGBE_GET_REGOFS_FUNC(RDBAH)
+IXGBE_GET_REGOFS_FUNC(TDBAL)
+IXGBE_GET_REGOFS_FUNC(TDBAH)
+IXGBE_GET_REGOFS_FUNC(TDLEN)
+IXGBE_GET_REGOFS_FUNC(TDH)
+IXGBE_GET_REGOFS_FUNC(TDT)
+IXGBE_GET_REGOFS_FUNC(TXDCTL)
+
 #endif /* _IXGBE_TYPE_H_ */

Index: net-next-2.6/drivers/net/ixgbe/ixgbe_main.c
===================================================================
@@ -60,6 +60,15 @@ static const struct ixgbe_info *ixgbe_in
 	[board_82599] = &ixgbe_82599_info,
 };
 
+
+static unsigned int dump_flag = 1;
+module_param(dump_flag, uint, 0644);
+MODULE_PARM_DESC(dump_flag, "Dump Flag");
+#define IXGBE_DUMP_REGS		(1 << 0)
+#define IXGBE_DUMP_TX_RINGS	(1 << 1)
+#define IXGBE_DUMP_RX_RINGS	(1 << 2)
+#define IXGBE_DUMP_BUFFERS	(1 << 3)
+
 /* ixgbe_pci_tbl - PCI Device ID Table
  *
  * Wildcard entries (PCI_ANY_ID) should come last

@@ -174,6 +183,290 @@ static inline void ixgbe_disable_sriov(s
 	adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
 }
 
+/*
+ * ixgbe_regdump - register printout routine
+ */
+static void ixgbe_regdump(struct ixgbe_hw *hw, u32 reg,
+			  char *name, u32 (*get_regofs)(int))
+{
+	printk(KERN_ERR "%-15s %08x\n", name, IXGBE_READ_REG(hw, reg));
+}
+
+/*
+ * ixgbe_regdump_n - register printout routine
+ */
+static void ixgbe_regdump_n(struct ixgbe_hw *hw, u32 reg,
+			    char *name, u32 (*get_regofs)(int))
+{
+	int i = 0, j = 0;
+	char rname[16];
+
+	if (!get_regofs)
+		return;
+
+	for (i = 0; i < 8; i++) {
+		snprintf(rname, 16, "%s[%d-%d]", name, i*8, i*8+7);
+		printk(KERN_ERR "%-15s ", rname);
+		for (j = 0; j < 8; j++)
+			printk(KERN_CONT "%08x ",
+				IXGBE_READ_REG(hw, get_regofs(i*8+j)));
+		printk(KERN_CONT "\n");
+	}
+}
+
+static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = {
+
+	/* General Registers */
+	{IXGBE_CTRL, "CTRL", NULL, ixgbe_regdump},
+	{IXGBE_STATUS, "STATUS", NULL, ixgbe_regdump},
+	{IXGBE_CTRL_EXT, "CTRL_EXT", NULL, ixgbe_regdump},
+
+	/* Interrupt Registers */
+	{IXGBE_EICR, "EICR", NULL, ixgbe_regdump},
+
+	/* RX Registers */
+	{IXGBE_SRRCTL(0), "SRRCTL", get_regofs_SRRCTL, ixgbe_regdump_n},
+	{IXGBE_DCA_RXCTRL(0), "DRXCTL", get_regofs_DCA_RXCTRL, ixgbe_regdump_n},
+	{IXGBE_RDLEN(0), "RDLEN", get_regofs_RDLEN, ixgbe_regdump_n},
+	{IXGBE_RDH(0), "RDH", get_regofs_RDH, ixgbe_regdump_n},
+	{IXGBE_RDT(0), "RDT", get_regofs_RDT, ixgbe_regdump_n},
+	{IXGBE_RXDCTL(0), "RXDCTL", get_regofs_RXDCTL, ixgbe_regdump_n},
+	{IXGBE_RDBAL(0), "RDBAL", get_regofs_RDBAL, ixgbe_regdump_n},
+	{IXGBE_RDBAH(0), "RDBAH", get_regofs_RDBAH, ixgbe_regdump_n},
+
+	/* TX Registers */
+	{IXGBE_TDBAL(0), "TDBAL", get_regofs_TDBAL, ixgbe_regdump_n},
+	{IXGBE_TDBAH(0), "TDBAH", get_regofs_TDBAH, ixgbe_regdump_n},
+	{IXGBE_TDLEN(0), "TDLEN", get_regofs_TDLEN, ixgbe_regdump_n},
+	{IXGBE_TDH(0), "TDH", get_regofs_TDH, ixgbe_regdump_n},
+	{IXGBE_TDT(0), "TDT", get_regofs_TDT, ixgbe_regdump_n},
+	{IXGBE_TXDCTL(0), "TXDCTL", get_regofs_TXDCTL, ixgbe_regdump_n},
+
+	/* List Terminator */
+	{}
+};
+
+/*
+ * ixgbe_dump - Print registers, tx-rings and rx-rings
+ */
+static void ixgbe_dump(struct ixgbe_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_reg_info *reginfo;
+	int n = 0;
+	struct ixgbe_ring *tx_ring;
+	struct ixgbe_tx_buffer *tx_buffer_info;
+	union ixgbe_adv_tx_desc *tx_desc;
+	struct my_u0 { u64 a; u64 b; } *u0;
+	struct ixgbe_ring *rx_ring;
+	union ixgbe_adv_rx_desc *rx_desc;
+	struct ixgbe_rx_buffer *rx_buffer_info;
+	u32 staterr;
+	int i = 0;
+
+	/* Print netdevice Info */
+	dev_err(&adapter->pdev->dev, "Net device Info\n");
+	if (netdev) {
+		printk(KERN_ERR "Device Name     state            "
+			"trans_start      last_rx\n");
+		printk(KERN_ERR "%-15s %016lX %016lX %016lX\n",
+		netdev->name,
+		netdev->state,
+		netdev->trans_start,
+		netdev->last_rx);
+	}
+
+	/* Print Registers */
+	if ((dump_flag & IXGBE_DUMP_REGS) == 0)
+		goto tx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "Register Dump\n");
+	printk(KERN_ERR " Register Name   Value \n");
+	for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl;
+	     reginfo->name; reginfo++) {
+		reginfo->dump_reg(hw, reginfo->reg, reginfo->name,
+					reginfo->get_regofs);
+	}
+
+	/* Print TX Ring Summary */
+tx_ring_summary:
+	if (!netdev || !netif_running(netdev))
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC] [bi(ntc)->dma  ] "
+		"leng ntw timestamp\n");
+	for (n = 0; n < adapter->num_tx_queues; n++) {
+		tx_ring = &adapter->tx_ring[n];
+		tx_buffer_info =
+			&tx_ring->tx_buffer_info[tx_ring->next_to_clean];
+		printk(KERN_ERR " %5d %5X %5X %016llX %04X %3X %016llX\n",
+			   n, tx_ring->next_to_use, tx_ring->next_to_clean,
+			   (u64)tx_buffer_info->dma,
+			   tx_buffer_info->length,
+			   tx_buffer_info->next_to_watch,
+			   (u64)tx_buffer_info->time_stamp);
+	}
+
+	/* Print TX Rings */
+	if ((dump_flag & IXGBE_DUMP_TX_RINGS) == 0)
+		goto rx_ring_summary;
+
+	dev_err(&adapter->pdev->dev, "TX Rings Dump\n");
+
+	/* Transmit Descriptor Formats
+	 *
+	 * Advanced Transmit Descriptor
+	 *   +--------------------------------------------------------------+
+	 * 0 |         Buffer Address [63:0]                                |
+	 *   +--------------------------------------------------------------+
+	 * 8 |  PAYLEN  | PORTS  | IDX | STA | DCMD  |DTYP |  RSV |  DTALEN |
+	 *   +--------------------------------------------------------------+
+	 *   63       46 45    40 39 36 35 32 31   24 23 20 19              0
+	 */
+
+	for (n = 0; n < adapter->num_tx_queues; n++) {
+		tx_ring = &adapter->tx_ring[n];
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "TX QUEUE INDEX = %d\n", tx_ring->queue_index);
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "T [desc]     [address 63:0  ] "
+			"[PlPOIdStDDt Ln] [bi->dma       ] "
+			"leng  ntw timestamp        bi->skb\n");
+
+		for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
+			tx_desc = IXGBE_TX_DESC_ADV(*tx_ring, i);
+			tx_buffer_info = &tx_ring->tx_buffer_info[i];
+			u0 = (struct my_u0 *)tx_desc;
+			printk(KERN_ERR "T [0x%03X]    %016llX %016llX %016llX"
+				" %04X  %3X %016llX %p", i,
+				le64_to_cpu(u0->a),
+				le64_to_cpu(u0->b),
+				(u64)tx_buffer_info->dma,
+				tx_buffer_info->length,
+				tx_buffer_info->next_to_watch,
+				(u64)tx_buffer_info->time_stamp,
+				tx_buffer_info->skb);
+			if (i == tx_ring->next_to_use &&
+				i == tx_ring->next_to_clean)
+				printk(KERN_CONT " NTC/U\n");
+			else if (i == tx_ring->next_to_use)
+				printk(KERN_CONT " NTU\n");
+			else if (i == tx_ring->next_to_clean)
+				printk(KERN_CONT " NTC\n");
+			else
+				printk(KERN_CONT "\n");
+
+			if ((dump_flag & IXGBE_DUMP_BUFFERS) &&
+				tx_buffer_info->dma != 0)
+				print_hex_dump(KERN_ERR, "",
+					DUMP_PREFIX_ADDRESS, 16, 1,
+					phys_to_virt(tx_buffer_info->dma),
+					tx_buffer_info->length, true);
+		}
+	}
+
+	/* Print RX Rings Summary */
+rx_ring_summary:
+	dev_err(&adapter->pdev->dev, "RX Rings Summary\n");
+	printk(KERN_ERR "Queue [NTU] [NTC]\n");
+	for (n = 0; n < adapter->num_rx_queues; n++) {
+		rx_ring = &adapter->rx_ring[n];
+		printk(KERN_ERR "%5d %5X %5X\n", n,
+			   rx_ring->next_to_use, rx_ring->next_to_clean);
+	}
+
+	/* Print RX Rings */
+	if ((dump_flag & IXGBE_DUMP_RX_RINGS) == 0)
+		goto exit;
+
+	dev_err(&adapter->pdev->dev, "RX Rings Dump\n");
+
+	/* Advanced Receive Descriptor (Read) Format
+	 *    63                                           1        0
+	 *    +-----------------------------------------------------+
+	 *  0 |       Packet Buffer Address [63:1]           |A0/NSE|
+	 *    +----------------------------------------------+------+
+	 *  8 |       Header Buffer Address [63:1]           |  DD  |
+	 *    +-----------------------------------------------------+
+	 *
+	 *
+	 * Advanced Receive Descriptor (Write-Back) Format
+	 *
+	 *   63       48 47    32 31  30      21 20 16 15   4 3     0
+	 *   +------------------------------------------------------+
+	 * 0 | Packet     IP     |SPH| HDR_LEN   | RSV|Packet|  RSS |
+	 *   | Checksum   Ident  |   |           |    | Type | Type |
+	 *   +------------------------------------------------------+
+	 * 8 | VLAN Tag | Length | Extended Error | Extended Status |
+	 *   +------------------------------------------------------+
+	 *   63       48 47    32 31            20 19               0
+	 */
+	for (n = 0; n < adapter->num_rx_queues; n++) {
+		rx_ring = &adapter->rx_ring[n];
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "RX QUEUE INDEX = %d\n", rx_ring->queue_index);
+		printk(KERN_ERR "------------------------------------\n");
+		printk(KERN_ERR "R  [desc]      [ PktBuf     A0] "
+			"[  HeadBuf   DD] [bi->dma       ] [bi->skb] "
+			"<-- Adv Rx Read format\n");
+		printk(KERN_ERR "RWB[desc]      [PcsmIpSHl PtRs] "
+			"[vl er S cks ln] ---------------- [bi->skb] "
+			"<-- Adv Rx Write-Back format\n");
+
+		for (i = 0; i < rx_ring->count; i++) {
+			rx_buffer_info = &rx_ring->rx_buffer_info[i];
+			rx_desc = IXGBE_RX_DESC_ADV(*rx_ring, i);
+			u0 = (struct my_u0 *)rx_desc;
+			staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+			if (staterr & IXGBE_RXD_STAT_DD) {
+				/* Descriptor Done */
+				printk(KERN_ERR "RWB[0x%03X]     %016llX "
+					"%016llX ---------------- %p", i,
+					le64_to_cpu(u0->a),
+					le64_to_cpu(u0->b),
+					rx_buffer_info->skb);
+			} else {
+				printk(KERN_ERR "R  [0x%03X]     %016llX "
+					"%016llX %016llX %p", i,
+					le64_to_cpu(u0->a),
+					le64_to_cpu(u0->b),
+					(u64)rx_buffer_info->dma,
+					rx_buffer_info->skb);
+
+				if (dump_flag & IXGBE_DUMP_BUFFERS) {
+					print_hex_dump(KERN_ERR, "",
+					   DUMP_PREFIX_ADDRESS, 16, 1,
+					   phys_to_virt(rx_buffer_info->dma),
+					   rx_ring->rx_buf_len, true);
+
+					if (rx_ring->rx_buf_len
+						< IXGBE_RXBUFFER_2048)
+						print_hex_dump(KERN_ERR, "",
+						  DUMP_PREFIX_ADDRESS, 16, 1,
+						  phys_to_virt(
+						    rx_buffer_info->page_dma +
+						    rx_buffer_info->page_offset
+						  ),
+						  PAGE_SIZE/2, true);
+				}
+			}
+
+			if (i == rx_ring->next_to_use)
+				printk(KERN_CONT " NTU\n");
+			else if (i == rx_ring->next_to_clean)
+				printk(KERN_CONT " NTC\n");
+			else
+				printk(KERN_CONT "\n");
+
+		}
+	}
+
+exit:
+	return;
+}
+
 static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter)
 {
 	u32 ctrl_ext;

@@ -3306,6 +3599,7 @@ static void ixgbe_reset_task(struct work
 
 	adapter->tx_timeout_count++;
 
+	ixgbe_dump(adapter);
 	ixgbe_reinit_locked(adapter);
 }
 

Index: net-next-2.6/drivers/net/ixgbe/ixgbe_type.h
===================================================================
@@ -2568,4 +2568,33 @@ struct ixgbe_info {
 #define IXGBE_ERR_EEPROM_VERSION                -24
 #define IXGBE_NOT_IMPLEMENTED                   0x7FFFFFFF
 
+
+struct ixgbe_reg_info {
+	u32 reg;
+	char *name;
+	u32 (*get_regofs)(int);
+	void (*dump_reg)(struct ixgbe_hw *, u32, char *, u32 (*)(int));
+};
+
+#define IXGBE_GET_REGOFS_FUNC(name)				\
+static inline u32 get_regofs_##name(int n)			\
+{								\
+	return IXGBE_##name(n);					\
+}								\
+
+IXGBE_GET_REGOFS_FUNC(SRRCTL)
+IXGBE_GET_REGOFS_FUNC(DCA_RXCTRL)
+IXGBE_GET_REGOFS_FUNC(RDLEN)
+IXGBE_GET_REGOFS_FUNC(RDH)
+IXGBE_GET_REGOFS_FUNC(RDT)
+IXGBE_GET_REGOFS_FUNC(RXDCTL)
+IXGBE_GET_REGOFS_FUNC(RDBAL)
+IXGBE_GET_REGOFS_FUNC(RDBAH)
+IXGBE_GET_REGOFS_FUNC(TDBAL)
+IXGBE_GET_REGOFS_FUNC(TDBAH)
+IXGBE_GET_REGOFS_FUNC(TDLEN)
+IXGBE_GET_REGOFS_FUNC(TDH)
+IXGBE_GET_REGOFS_FUNC(TDT)
+IXGBE_GET_REGOFS_FUNC(TXDCTL)
+
 #endif /* _IXGBE_TYPE_H_ */

index 0aa50c2..bbcf5c7 100644
@@ -434,6 +434,8 @@ static int e1000_get_regs_len(struct net_device *netdev)
 	return E1000_REGS_LEN * sizeof(u32);
 }
 
+extern void e1000e_dump(struct e1000_adapter *);
+
 static void e1000_get_regs(struct net_device *netdev,
 			   struct ethtool_regs *regs, void *p)
 {

@@ -443,6 +445,8 @@ static void e1000_get_regs(struct net_device *netdev,
 	u16 phy_data;
 	u8 revision_id;
 
+	e1000e_dump(adapter);
+
 	memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 
 	pci_read_config_byte(adapter->pdev, PCI_REVISION_ID, &revision_id);

index eccf29b..d23501d 100644
@@ -92,6 +92,11 @@ enum e1e_registers {
 	E1000_FCRTL    = 0x02160, /* Flow Control Receive Threshold Low - RW */
 	E1000_FCRTH    = 0x02168, /* Flow Control Receive Threshold High - RW */
 	E1000_PSRCTL   = 0x02170, /* Packet Split Receive Control - RW */
+	E1000_RDFH     = 0x02410, /* Rx Data FIFO Head - RW */
+	E1000_RDFT     = 0x02418, /* Rx Data FIFO Tail - RW */
+	E1000_RDFHS    = 0x02420, /* Rx Data FIFO Head Saved - RW */
+	E1000_RDFTS    = 0x02428, /* Rx Data FIFO Tail Saved - RW */
+	E1000_RDFPC    = 0x02430, /* Rx Data FIFO Packet Count - RW */
 	E1000_RDBAL    = 0x02800, /* Rx Descriptor Base Address Low - RW */
 	E1000_RDBAH    = 0x02804, /* Rx Descriptor Base Address High - RW */
 	E1000_RDLEN    = 0x02808, /* Rx Descriptor Length - RW */

@@ -112,6 +117,11 @@ enum e1e_registers {
  */
 #define E1000_RDBAL_REG(_n)   (E1000_RDBAL + (_n << 8))
 	E1000_KABGTXD  = 0x03004, /* AFE Band Gap Transmit Ref Data */
+	E1000_TDFH     = 0x03410, /* TX Data FIFO Head - RW */
+	E1000_TDFT     = 0x03418, /* TX Data FIFO Tail - RW */
+	E1000_TDFHS    = 0x03420, /* TX Data FIFO Head Saved - RW */
+	E1000_TDFTS    = 0x03428, /* Tx Data FIFO Tail Saved - RW */
+	E1000_TDFPC    = 0x03430, /* TX Data FIFO Packet Count - RW */
 	E1000_TDBAL    = 0x03800, /* Tx Descriptor Base Address Low - RW */
 	E1000_TDBAH    = 0x03804, /* Tx Descriptor Base Address High - RW */
 	E1000_TDLEN    = 0x03808, /* Tx Descriptor Length - RW */

316 lines not on this page · raw message

index 288ee1d..607a71f 100644
@@ -258,6 +258,9 @@ ixgb_get_regs_len(struct net_device *netdev)
 	return IXGB_REG_DUMP_LEN;
 }
 
+extern void ixgb_dump(struct ixgb_adapter *);
+extern int debug_dump;
+
 static void
 ixgb_get_regs(struct net_device *netdev,
 		   struct ethtool_regs *regs, void *p)

@@ -268,6 +271,9 @@ ixgb_get_regs(struct net_device *netdev,
 	u32 *reg_start = reg;
 	u8 i;
 
+	if (debug_dump)
+		ixgb_dump(adapter);
+
 	/* the 1 (one) below indicates an attempt at versioning, if the
 	 * interface in ethtool or the driver changes, this 1 should be
 	 * incremented */

index 831fe0c..ac0f895 100644
@@ -243,6 +243,21 @@ typedef enum {
 #define IXGB_XOFFTXC 0x021D0	/* XOFF Transmitted Count */
 #define IXGB_RJC     0x021D8	/* Receive Jabber Count */
 
+/* Diagnostic */
+#define IXGB_RDFH    0x04000    /* RX Data FIFO Head - RO */
+#define IXGB_RDFT    0x04008    /* RX Data FIFO Tail - RO */
+#define IXGB_RDFTS   0x04018    /* RX Data FIFO Tail Saved - RO */
+#define IXGB_RDFPC   0x04020    /* RX Data Packet Count - RO */
+#define IXGB_TDFH    0x04028    /* TX Data FIFO Head - RO */
+#define IXGB_TDFT    0x04030    /* TX Data FIFO Tail - RO */
+#define IXGB_TDFTS   0x04040    /* TX Data FIFO Tail Saved - RO */
+#define IXGB_TDFPC   0x04048    /* TX Data FIFO Packet Count - RO */
+#define IXGB_TREG    0x04050    /* Test Register - RW */
+#define IXGB_RPR     0x04058    /* RX Page Register - RW */
+#define IXGB_TPR     0x04060    /* TX Page Register - RW */
+#define IXGB_RPDBM   0x05000    /* RX Packet or Descriptor Buffer Memory - RO */
+#define IXGB_TPDBM   0x06000    /* TX Packet or Descriptor Buffer Memory - RO */
+
 /* CTRL0 Bit Masks */
 #define IXGB_CTRL0_LRST     0x00000008
 #define IXGB_CTRL0_JFE      0x00000010

170 lines not on this page · raw message