mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
e1000e: 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
David S. Miller
parent
675ad47375
commit
84f4ee902a
@ -69,6 +69,361 @@ static const struct e1000_info *e1000_info_tbl[] = {
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[board_pchlan] = &e1000_pch_info,
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};
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struct e1000_reg_info {
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u32 ofs;
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char *name;
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};
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#define E1000_RDFH 0x02410 /* Rx Data FIFO Head - RW */
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#define E1000_RDFT 0x02418 /* Rx Data FIFO Tail - RW */
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#define E1000_RDFHS 0x02420 /* Rx Data FIFO Head Saved - RW */
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#define E1000_RDFTS 0x02428 /* Rx Data FIFO Tail Saved - RW */
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#define E1000_RDFPC 0x02430 /* Rx Data FIFO Packet Count - RW */
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#define E1000_TDFH 0x03410 /* Tx Data FIFO Head - RW */
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#define E1000_TDFT 0x03418 /* Tx Data FIFO Tail - RW */
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#define E1000_TDFHS 0x03420 /* Tx Data FIFO Head Saved - RW */
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#define E1000_TDFTS 0x03428 /* Tx Data FIFO Tail Saved - RW */
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#define E1000_TDFPC 0x03430 /* Tx Data FIFO Packet Count - RW */
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static const struct e1000_reg_info e1000_reg_info_tbl[] = {
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/* General Registers */
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{E1000_CTRL, "CTRL"},
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{E1000_STATUS, "STATUS"},
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{E1000_CTRL_EXT, "CTRL_EXT"},
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/* Interrupt Registers */
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{E1000_ICR, "ICR"},
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/* RX Registers */
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{E1000_RCTL, "RCTL"},
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{E1000_RDLEN, "RDLEN"},
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{E1000_RDH, "RDH"},
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{E1000_RDT, "RDT"},
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{E1000_RDTR, "RDTR"},
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{E1000_RXDCTL(0), "RXDCTL"},
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{E1000_ERT, "ERT"},
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{E1000_RDBAL, "RDBAL"},
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{E1000_RDBAH, "RDBAH"},
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{E1000_RDFH, "RDFH"},
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{E1000_RDFT, "RDFT"},
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{E1000_RDFHS, "RDFHS"},
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{E1000_RDFTS, "RDFTS"},
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{E1000_RDFPC, "RDFPC"},
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/* TX Registers */
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{E1000_TCTL, "TCTL"},
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{E1000_TDBAL, "TDBAL"},
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{E1000_TDBAH, "TDBAH"},
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{E1000_TDLEN, "TDLEN"},
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{E1000_TDH, "TDH"},
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{E1000_TDT, "TDT"},
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{E1000_TIDV, "TIDV"},
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{E1000_TXDCTL(0), "TXDCTL"},
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{E1000_TADV, "TADV"},
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{E1000_TARC(0), "TARC"},
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{E1000_TDFH, "TDFH"},
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{E1000_TDFT, "TDFT"},
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{E1000_TDFHS, "TDFHS"},
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{E1000_TDFTS, "TDFTS"},
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{E1000_TDFPC, "TDFPC"},
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/* List Terminator */
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{}
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};
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/*
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* e1000_regdump - register printout routine
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*/
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static void e1000_regdump(struct e1000_hw *hw, struct e1000_reg_info *reginfo)
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{
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int n = 0;
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char rname[16];
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u32 regs[8];
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switch (reginfo->ofs) {
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case E1000_RXDCTL(0):
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for (n = 0; n < 2; n++)
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regs[n] = __er32(hw, E1000_RXDCTL(n));
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break;
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case E1000_TXDCTL(0):
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for (n = 0; n < 2; n++)
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regs[n] = __er32(hw, E1000_TXDCTL(n));
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break;
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case E1000_TARC(0):
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for (n = 0; n < 2; n++)
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regs[n] = __er32(hw, E1000_TARC(n));
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break;
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default:
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printk(KERN_INFO "%-15s %08x\n",
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reginfo->name, __er32(hw, reginfo->ofs));
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return;
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}
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snprintf(rname, 16, "%s%s", reginfo->name, "[0-1]");
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printk(KERN_INFO "%-15s ", rname);
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for (n = 0; n < 2; n++)
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printk(KERN_CONT "%08x ", regs[n]);
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printk(KERN_CONT "\n");
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}
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/*
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* e1000e_dump - Print registers, tx-ring and rx-ring
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*/
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static void e1000e_dump(struct e1000_adapter *adapter)
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{
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struct net_device *netdev = adapter->netdev;
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struct e1000_hw *hw = &adapter->hw;
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struct e1000_reg_info *reginfo;
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struct e1000_ring *tx_ring = adapter->tx_ring;
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struct e1000_tx_desc *tx_desc;
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struct my_u0 { u64 a; u64 b; } *u0;
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struct e1000_buffer *buffer_info;
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struct e1000_ring *rx_ring = adapter->rx_ring;
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union e1000_rx_desc_packet_split *rx_desc_ps;
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struct e1000_rx_desc *rx_desc;
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struct my_u1 { u64 a; u64 b; u64 c; u64 d; } *u1;
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u32 staterr;
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int i = 0;
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if (!netif_msg_hw(adapter))
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return;
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/* Print netdevice Info */
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if (netdev) {
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dev_info(&adapter->pdev->dev, "Net device Info\n");
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printk(KERN_INFO "Device Name state "
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"trans_start last_rx\n");
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printk(KERN_INFO "%-15s %016lX %016lX %016lX\n",
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netdev->name,
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netdev->state,
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netdev->trans_start,
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netdev->last_rx);
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}
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/* Print Registers */
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dev_info(&adapter->pdev->dev, "Register Dump\n");
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printk(KERN_INFO " Register Name Value\n");
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for (reginfo = (struct e1000_reg_info *)e1000_reg_info_tbl;
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reginfo->name; reginfo++) {
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e1000_regdump(hw, reginfo);
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}
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/* Print TX Ring Summary */
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if (!netdev || !netif_running(netdev))
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goto exit;
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dev_info(&adapter->pdev->dev, "TX Rings Summary\n");
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printk(KERN_INFO "Queue [NTU] [NTC] [bi(ntc)->dma ]"
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" leng ntw timestamp\n");
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buffer_info = &tx_ring->buffer_info[tx_ring->next_to_clean];
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printk(KERN_INFO " %5d %5X %5X %016llX %04X %3X %016llX\n",
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0, tx_ring->next_to_use, tx_ring->next_to_clean,
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(u64)buffer_info->dma,
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buffer_info->length,
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buffer_info->next_to_watch,
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(u64)buffer_info->time_stamp);
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/* Print TX Rings */
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if (!netif_msg_tx_done(adapter))
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goto rx_ring_summary;
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dev_info(&adapter->pdev->dev, "TX Rings Dump\n");
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/* Transmit Descriptor Formats - DEXT[29] is 0 (Legacy) or 1 (Extended)
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*
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* Legacy Transmit Descriptor
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* +--------------------------------------------------------------+
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* 0 | Buffer Address [63:0] (Reserved on Write Back) |
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* +--------------------------------------------------------------+
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* 8 | Special | CSS | Status | CMD | CSO | Length |
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* +--------------------------------------------------------------+
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* 63 48 47 36 35 32 31 24 23 16 15 0
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*
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* Extended Context Descriptor (DTYP=0x0) for TSO or checksum offload
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* 63 48 47 40 39 32 31 16 15 8 7 0
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* +----------------------------------------------------------------+
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* 0 | TUCSE | TUCS0 | TUCSS | IPCSE | IPCS0 | IPCSS |
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* +----------------------------------------------------------------+
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* 8 | MSS | HDRLEN | RSV | STA | TUCMD | DTYP | PAYLEN |
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* +----------------------------------------------------------------+
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* 63 48 47 40 39 36 35 32 31 24 23 20 19 0
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*
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* Extended Data Descriptor (DTYP=0x1)
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* +----------------------------------------------------------------+
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* 0 | Buffer Address [63:0] |
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* +----------------------------------------------------------------+
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* 8 | VLAN tag | POPTS | Rsvd | Status | Command | DTYP | DTALEN |
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* +----------------------------------------------------------------+
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* 63 48 47 40 39 36 35 32 31 24 23 20 19 0
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*/
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printk(KERN_INFO "Tl[desc] [address 63:0 ] [SpeCssSCmCsLen]"
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" [bi->dma ] leng ntw timestamp bi->skb "
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"<-- Legacy format\n");
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printk(KERN_INFO "Tc[desc] [Ce CoCsIpceCoS] [MssHlRSCm0Plen]"
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" [bi->dma ] leng ntw timestamp bi->skb "
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"<-- Ext Context format\n");
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printk(KERN_INFO "Td[desc] [address 63:0 ] [VlaPoRSCm1Dlen]"
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" [bi->dma ] leng ntw timestamp bi->skb "
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"<-- Ext Data format\n");
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for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
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tx_desc = E1000_TX_DESC(*tx_ring, i);
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buffer_info = &tx_ring->buffer_info[i];
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u0 = (struct my_u0 *)tx_desc;
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printk(KERN_INFO "T%c[0x%03X] %016llX %016llX %016llX "
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"%04X %3X %016llX %p",
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(!(le64_to_cpu(u0->b) & (1<<29)) ? 'l' :
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((le64_to_cpu(u0->b) & (1<<20)) ? 'd' : 'c')), i,
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le64_to_cpu(u0->a), le64_to_cpu(u0->b),
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(u64)buffer_info->dma, buffer_info->length,
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buffer_info->next_to_watch, (u64)buffer_info->time_stamp,
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buffer_info->skb);
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if (i == tx_ring->next_to_use && i == tx_ring->next_to_clean)
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printk(KERN_CONT " NTC/U\n");
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else if (i == tx_ring->next_to_use)
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printk(KERN_CONT " NTU\n");
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else if (i == tx_ring->next_to_clean)
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printk(KERN_CONT " NTC\n");
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else
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printk(KERN_CONT "\n");
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if (netif_msg_pktdata(adapter) && buffer_info->dma != 0)
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print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS,
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16, 1, phys_to_virt(buffer_info->dma),
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buffer_info->length, true);
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}
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/* Print RX Rings Summary */
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rx_ring_summary:
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dev_info(&adapter->pdev->dev, "RX Rings Summary\n");
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printk(KERN_INFO "Queue [NTU] [NTC]\n");
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printk(KERN_INFO " %5d %5X %5X\n", 0,
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rx_ring->next_to_use, rx_ring->next_to_clean);
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/* Print RX Rings */
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if (!netif_msg_rx_status(adapter))
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goto exit;
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dev_info(&adapter->pdev->dev, "RX Rings Dump\n");
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switch (adapter->rx_ps_pages) {
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case 1:
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case 2:
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case 3:
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/* [Extended] Packet Split Receive Descriptor Format
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*
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* +-----------------------------------------------------+
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* 0 | Buffer Address 0 [63:0] |
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* +-----------------------------------------------------+
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* 8 | Buffer Address 1 [63:0] |
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* +-----------------------------------------------------+
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* 16 | Buffer Address 2 [63:0] |
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* +-----------------------------------------------------+
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* 24 | Buffer Address 3 [63:0] |
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* +-----------------------------------------------------+
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*/
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printk(KERN_INFO "R [desc] [buffer 0 63:0 ] "
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"[buffer 1 63:0 ] "
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"[buffer 2 63:0 ] [buffer 3 63:0 ] [bi->dma ] "
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"[bi->skb] <-- Ext Pkt Split format\n");
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/* [Extended] Receive Descriptor (Write-Back) Format
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*
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* 63 48 47 32 31 13 12 8 7 4 3 0
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* +------------------------------------------------------+
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* 0 | Packet | IP | Rsvd | MRQ | Rsvd | MRQ RSS |
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* | Checksum | Ident | | Queue | | Type |
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* +------------------------------------------------------+
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* 8 | VLAN Tag | Length | Extended Error | Extended Status |
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* +------------------------------------------------------+
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* 63 48 47 32 31 20 19 0
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*/
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printk(KERN_INFO "RWB[desc] [ck ipid mrqhsh] "
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"[vl l0 ee es] "
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"[ l3 l2 l1 hs] [reserved ] ---------------- "
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"[bi->skb] <-- Ext Rx Write-Back format\n");
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for (i = 0; i < rx_ring->count; i++) {
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buffer_info = &rx_ring->buffer_info[i];
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rx_desc_ps = E1000_RX_DESC_PS(*rx_ring, i);
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u1 = (struct my_u1 *)rx_desc_ps;
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staterr =
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le32_to_cpu(rx_desc_ps->wb.middle.status_error);
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if (staterr & E1000_RXD_STAT_DD) {
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/* Descriptor Done */
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printk(KERN_INFO "RWB[0x%03X] %016llX "
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"%016llX %016llX %016llX "
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"---------------- %p", i,
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le64_to_cpu(u1->a),
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le64_to_cpu(u1->b),
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le64_to_cpu(u1->c),
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le64_to_cpu(u1->d),
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buffer_info->skb);
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} else {
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printk(KERN_INFO "R [0x%03X] %016llX "
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"%016llX %016llX %016llX %016llX %p", i,
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le64_to_cpu(u1->a),
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le64_to_cpu(u1->b),
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le64_to_cpu(u1->c),
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le64_to_cpu(u1->d),
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(u64)buffer_info->dma,
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buffer_info->skb);
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if (netif_msg_pktdata(adapter))
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print_hex_dump(KERN_INFO, "",
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DUMP_PREFIX_ADDRESS, 16, 1,
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phys_to_virt(buffer_info->dma),
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adapter->rx_ps_bsize0, true);
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}
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if (i == rx_ring->next_to_use)
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printk(KERN_CONT " NTU\n");
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else if (i == rx_ring->next_to_clean)
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printk(KERN_CONT " NTC\n");
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else
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printk(KERN_CONT "\n");
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}
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break;
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default:
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case 0:
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/* Legacy Receive Descriptor Format
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*
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* +-----------------------------------------------------+
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* | Buffer Address [63:0] |
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* +-----------------------------------------------------+
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* | VLAN Tag | Errors | Status 0 | Packet csum | Length |
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* +-----------------------------------------------------+
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* 63 48 47 40 39 32 31 16 15 0
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*/
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printk(KERN_INFO "Rl[desc] [address 63:0 ] "
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"[vl er S cks ln] [bi->dma ] [bi->skb] "
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"<-- Legacy format\n");
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for (i = 0; rx_ring->desc && (i < rx_ring->count); i++) {
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rx_desc = E1000_RX_DESC(*rx_ring, i);
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buffer_info = &rx_ring->buffer_info[i];
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u0 = (struct my_u0 *)rx_desc;
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printk(KERN_INFO "Rl[0x%03X] %016llX %016llX "
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"%016llX %p",
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i, le64_to_cpu(u0->a), le64_to_cpu(u0->b),
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(u64)buffer_info->dma, buffer_info->skb);
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if (i == rx_ring->next_to_use)
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printk(KERN_CONT " NTU\n");
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else if (i == rx_ring->next_to_clean)
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printk(KERN_CONT " NTC\n");
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else
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printk(KERN_CONT "\n");
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if (netif_msg_pktdata(adapter))
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print_hex_dump(KERN_INFO, "",
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DUMP_PREFIX_ADDRESS,
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16, 1, phys_to_virt(buffer_info->dma),
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adapter->rx_buffer_len, true);
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}
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}
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exit:
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return;
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}
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/**
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* e1000_desc_unused - calculate if we have unused descriptors
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**/
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@ -4269,6 +4624,8 @@ static void e1000_reset_task(struct work_struct *work)
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struct e1000_adapter *adapter;
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adapter = container_of(work, struct e1000_adapter, reset_task);
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e1000e_dump(adapter);
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e_err("Reset adapter\n");
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e1000e_reinit_locked(adapter);
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}
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