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

This patch adds registers (,tx/rx rings' status and so on) printout
code just before resetting adapters. This will be helpful for detecting
the root cause of adapters reset.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Taku Izumi 2010-04-27 14:39:53 +00:00 committed by David S. Miller
parent c97ec42a7a
commit dcd79aebe7
1 changed files with 341 additions and 0 deletions
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341
drivers/net/ixgbe/ixgbe_main.c
View File

@ -175,6 +175,345 @@ static inline void ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
}
struct ixgbe_reg_info {
u32 ofs;
char *name;
};
static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = {
/* General Registers */
{IXGBE_CTRL, "CTRL"},
{IXGBE_STATUS, "STATUS"},
{IXGBE_CTRL_EXT, "CTRL_EXT"},
/* Interrupt Registers */
{IXGBE_EICR, "EICR"},
/* RX Registers */
{IXGBE_SRRCTL(0), "SRRCTL"},
{IXGBE_DCA_RXCTRL(0), "DRXCTL"},
{IXGBE_RDLEN(0), "RDLEN"},
{IXGBE_RDH(0), "RDH"},
{IXGBE_RDT(0), "RDT"},
{IXGBE_RXDCTL(0), "RXDCTL"},
{IXGBE_RDBAL(0), "RDBAL"},
{IXGBE_RDBAH(0), "RDBAH"},
/* TX Registers */
{IXGBE_TDBAL(0), "TDBAL"},
{IXGBE_TDBAH(0), "TDBAH"},
{IXGBE_TDLEN(0), "TDLEN"},
{IXGBE_TDH(0), "TDH"},
{IXGBE_TDT(0), "TDT"},
{IXGBE_TXDCTL(0), "TXDCTL"},
/* List Terminator */
{}
};
/*
* ixgbe_regdump - register printout routine
*/
static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo)
{
int i = 0, j = 0;
char rname[16];
u32 regs[64];
switch (reginfo->ofs) {
case IXGBE_SRRCTL(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i));
break;
case IXGBE_DCA_RXCTRL(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
break;
case IXGBE_RDLEN(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i));
break;
case IXGBE_RDH(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_RDH(i));
break;
case IXGBE_RDT(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_RDT(i));
break;
case IXGBE_RXDCTL(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
break;
case IXGBE_RDBAL(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i));
break;
case IXGBE_RDBAH(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i));
break;
case IXGBE_TDBAL(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i));
break;
case IXGBE_TDBAH(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i));
break;
case IXGBE_TDLEN(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i));
break;
case IXGBE_TDH(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_TDH(i));
break;
case IXGBE_TDT(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_TDT(i));
break;
case IXGBE_TXDCTL(0):
for (i = 0; i < 64; i++)
regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i));
break;
default:
printk(KERN_INFO "%-15s %08x\n", reginfo->name,
IXGBE_READ_REG(hw, reginfo->ofs));
return;
}
for (i = 0; i < 8; i++) {
snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7);
printk(KERN_ERR "%-15s ", rname);
for (j = 0; j < 8; j++)
printk(KERN_CONT "%08x ", regs[i*8+j]);
printk(KERN_CONT "\n");
}
}
/*
* 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;
if (!netif_msg_hw(adapter))
return;
/* Print netdevice Info */
if (netdev) {
dev_info(&adapter->pdev->dev, "Net device Info\n");
printk(KERN_INFO "Device Name state "
"trans_start last_rx\n");
printk(KERN_INFO "%-15s %016lX %016lX %016lX\n",
netdev->name,
netdev->state,
netdev->trans_start,
netdev->last_rx);
}
/* Print Registers */
dev_info(&adapter->pdev->dev, "Register Dump\n");
printk(KERN_INFO " Register Name Value\n");
for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl;
reginfo->name; reginfo++) {
ixgbe_regdump(hw, reginfo);
}
/* Print TX Ring Summary */
if (!netdev || !netif_running(netdev))
goto exit;
dev_info(&adapter->pdev->dev, "TX Rings Summary\n");
printk(KERN_INFO "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_INFO " %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 (!netif_msg_tx_done(adapter))
goto rx_ring_summary;
dev_info(&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_INFO "------------------------------------\n");
printk(KERN_INFO "TX QUEUE INDEX = %d\n", tx_ring->queue_index);
printk(KERN_INFO "------------------------------------\n");
printk(KERN_INFO "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_INFO "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 (netif_msg_pktdata(adapter) &&
tx_buffer_info->dma != 0)
print_hex_dump(KERN_INFO, "",
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_info(&adapter->pdev->dev, "RX Rings Summary\n");
printk(KERN_INFO "Queue [NTU] [NTC]\n");
for (n = 0; n < adapter->num_rx_queues; n++) {
rx_ring = adapter->rx_ring[n];
printk(KERN_INFO "%5d %5X %5X\n", n,
rx_ring->next_to_use, rx_ring->next_to_clean);
}
/* Print RX Rings */
if (!netif_msg_rx_status(adapter))
goto exit;
dev_info(&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_INFO "------------------------------------\n");
printk(KERN_INFO "RX QUEUE INDEX = %d\n", rx_ring->queue_index);
printk(KERN_INFO "------------------------------------\n");
printk(KERN_INFO "R [desc] [ PktBuf A0] "
"[ HeadBuf DD] [bi->dma ] [bi->skb] "
"<-- Adv Rx Read format\n");
printk(KERN_INFO "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_INFO "RWB[0x%03X] %016llX "
"%016llX ---------------- %p", i,
le64_to_cpu(u0->a),
le64_to_cpu(u0->b),
rx_buffer_info->skb);
} else {
printk(KERN_INFO "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 (netif_msg_pktdata(adapter)) {
print_hex_dump(KERN_INFO, "",
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_INFO, "",
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;
@ -3404,6 +3743,8 @@ static void ixgbe_reset_task(struct work_struct *work)
adapter->tx_timeout_count++;
ixgbe_dump(adapter);
netdev_err(adapter->netdev, "Reset adapter\n");
ixgbe_reinit_locked(adapter);
}