e1000: Adding e1000_dump function (b04e36ba) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/net/ethernet/intel/e1000/e1000.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -254,6 +254,7 @@ struct e1000_adapter {
		atomic_t tx_fifo_stall;
		bool pcix_82544;
		bool detect_tx_hung;
		bool dump_buffers;

		/* RX */
		bool (clean_rx)(struct e1000_adapter adapter,

drivers/net/ethernet/intel/e1000/e1000_hw.h

+10 −0

Original line number	Diff line number	Diff line
		@@ -895,6 +895,11 @@ struct e1000_ffvt_entry {
		#define E1000_FCRTL 0x02160 /* Flow Control Receive Threshold Low - RW */
		#define E1000_FCRTH 0x02168 /* Flow Control Receive Threshold High - RW */
		#define E1000_PSRCTL 0x02170 /* Packet Split Receive Control - RW */
		#define E1000_RDFH 0x02410 /* RX Data FIFO Head - RW */
		#define E1000_RDFT 0x02418 /* RX Data FIFO Tail - RW */
		#define E1000_RDFHS 0x02420 /* RX Data FIFO Head Saved - RW */
		#define E1000_RDFTS 0x02428 /* RX Data FIFO Tail Saved - RW */
		#define E1000_RDFPC 0x02430 /* RX Data FIFO Packet Count - RW */
		#define E1000_RDBAL 0x02800 /* RX Descriptor Base Address Low - RW */
		#define E1000_RDBAH 0x02804 /* RX Descriptor Base Address High - RW */
		#define E1000_RDLEN 0x02808 /* RX Descriptor Length - RW */
		@@ -1074,6 +1079,11 @@ struct e1000_ffvt_entry {
		#define E1000_82542_IMC E1000_IMC
		#define E1000_82542_RCTL E1000_RCTL
		#define E1000_82542_RDTR 0x00108
		#define E1000_82542_RDFH E1000_RDFH
		#define E1000_82542_RDFT E1000_RDFT
		#define E1000_82542_RDFHS E1000_RDFHS
		#define E1000_82542_RDFTS E1000_RDFTS
		#define E1000_82542_RDFPC E1000_RDFPC
		#define E1000_82542_RDBAL 0x00110
		#define E1000_82542_RDBAH 0x00114
		#define E1000_82542_RDLEN 0x00118

drivers/net/ethernet/intel/e1000/e1000_main.c

+224 −0

Original line number	Diff line number	Diff line
		@@ -3239,6 +3239,228 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
		return NETDEV_TX_OK;
		}

		#define NUM_REGS 38 /* 1 based count */
		static void e1000_regdump(struct e1000_adapter *adapter)
		{
		struct e1000_hw *hw = &adapter->hw;
		u32 regs[NUM_REGS];
		u32 *regs_buff = regs;
		int i = 0;

		char *reg_name[] = {
		"CTRL", "STATUS",
		"RCTL", "RDLEN", "RDH", "RDT", "RDTR",
		"TCTL", "TDBAL", "TDBAH", "TDLEN", "TDH", "TDT",
		"TIDV", "TXDCTL", "TADV", "TARC0",
		"TDBAL1", "TDBAH1", "TDLEN1", "TDH1", "TDT1",
		"TXDCTL1", "TARC1",
		"CTRL_EXT", "ERT", "RDBAL", "RDBAH",
		"TDFH", "TDFT", "TDFHS", "TDFTS", "TDFPC",
		"RDFH", "RDFT", "RDFHS", "RDFTS", "RDFPC"
		};

		regs_buff[0] = er32(CTRL);
		regs_buff[1] = er32(STATUS);

		regs_buff[2] = er32(RCTL);
		regs_buff[3] = er32(RDLEN);
		regs_buff[4] = er32(RDH);
		regs_buff[5] = er32(RDT);
		regs_buff[6] = er32(RDTR);

		regs_buff[7] = er32(TCTL);
		regs_buff[8] = er32(TDBAL);
		regs_buff[9] = er32(TDBAH);
		regs_buff[10] = er32(TDLEN);
		regs_buff[11] = er32(TDH);
		regs_buff[12] = er32(TDT);
		regs_buff[13] = er32(TIDV);
		regs_buff[14] = er32(TXDCTL);
		regs_buff[15] = er32(TADV);
		regs_buff[16] = er32(TARC0);

		regs_buff[17] = er32(TDBAL1);
		regs_buff[18] = er32(TDBAH1);
		regs_buff[19] = er32(TDLEN1);
		regs_buff[20] = er32(TDH1);
		regs_buff[21] = er32(TDT1);
		regs_buff[22] = er32(TXDCTL1);
		regs_buff[23] = er32(TARC1);
		regs_buff[24] = er32(CTRL_EXT);
		regs_buff[25] = er32(ERT);
		regs_buff[26] = er32(RDBAL0);
		regs_buff[27] = er32(RDBAH0);
		regs_buff[28] = er32(TDFH);
		regs_buff[29] = er32(TDFT);
		regs_buff[30] = er32(TDFHS);
		regs_buff[31] = er32(TDFTS);
		regs_buff[32] = er32(TDFPC);
		regs_buff[33] = er32(RDFH);
		regs_buff[34] = er32(RDFT);
		regs_buff[35] = er32(RDFHS);
		regs_buff[36] = er32(RDFTS);
		regs_buff[37] = er32(RDFPC);

		pr_info("Register dump\n");
		for (i = 0; i < NUM_REGS; i++) {
		printk(KERN_INFO "%-15s %08x\n",
		reg_name[i], regs_buff[i]);
		}
		}

		/*
		* e1000_dump: Print registers, tx ring and rx ring
		*/
		static void e1000_dump(struct e1000_adapter *adapter)
		{
		/* this code doesn't handle multiple rings */
		struct e1000_tx_ring *tx_ring = adapter->tx_ring;
		struct e1000_rx_ring *rx_ring = adapter->rx_ring;
		int i;

		if (!netif_msg_hw(adapter))
		return;

		/* Print Registers */
		e1000_regdump(adapter);

		/*
		* transmit dump
		*/
		pr_info("TX Desc ring0 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_INFO "Tc[desc] [Ce CoCsIpceCoS] [MssHlRSCm0Plen] [bi->dma ]"
		" leng ntw timestmp bi->skb\n");
		printk(KERN_INFO "Td[desc] [address 63:0 ] [VlaPoRSCm1Dlen] [bi->dma ]"
		" leng ntw timestmp bi->skb\n");

		if (!netif_msg_tx_done(adapter))
		goto rx_ring_summary;

		for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
		struct e1000_tx_desc tx_desc = E1000_TX_DESC(tx_ring, i);
		struct e1000_buffer *buffer_info = &tx_ring->buffer_info[i];
		struct my_u { u64 a; u64 b; };
		struct my_u u = (struct my_u )tx_desc;
		printk(KERN_INFO "T%c[0x%03X] %016llX %016llX %016llX %04X %3X "
		"%016llX %p",
		((le64_to_cpu(u->b) & (1<<20)) ? 'd' : 'c'), i,
		le64_to_cpu(u->a), le64_to_cpu(u->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 (netif_msg_pktdata(adapter) && buffer_info->dma != 0)
		print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS,
		16, 1, phys_to_virt(buffer_info->dma),
		buffer_info->length, true);
		}

		rx_ring_summary:
		/*
		* receive dump
		*/
		pr_info("\nRX Desc ring dump\n");

		/* 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_INFO "R[desc] [address 63:0 ] [vl er S cks ln] "
		"[bi->dma ] [bi->skb]\n");

		if (!netif_msg_rx_status(adapter))
		goto exit;

		for (i = 0; rx_ring->desc && (i < rx_ring->count); i++) {
		struct e1000_rx_desc rx_desc = E1000_RX_DESC(rx_ring, i);
		struct e1000_buffer *buffer_info = &rx_ring->buffer_info[i];
		struct my_u { u64 a; u64 b; };
		struct my_u u = (struct my_u )rx_desc;
		printk(KERN_INFO "R[0x%03X] %016llX %016llX %016llX %p",
		i, le64_to_cpu(u->a), le64_to_cpu(u->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 (netif_msg_pktdata(adapter))
		print_hex_dump(KERN_INFO, "",
		DUMP_PREFIX_ADDRESS, 16, 1,
		phys_to_virt(buffer_info->dma),
		buffer_info->length, true);

		} /* for */

		/* dump the descriptor caches */
		/* rx */
		printk(KERN_INFO "e1000: Rx descriptor cache in 64bit format\n");
		for (i = 0x6000; i <= 0x63FF ; i += 0x10) {
		printk(KERN_INFO "R%04X: %08X\|%08X %08X\|%08X\n",
		i,
		readl(adapter->hw.hw_addr + i+4),
		readl(adapter->hw.hw_addr + i),
		readl(adapter->hw.hw_addr + i+12),
		readl(adapter->hw.hw_addr + i+8));
		}
		/* tx */
		printk(KERN_INFO "e1000: Tx descriptor cache in 64bit format\n");
		for (i = 0x7000; i <= 0x73FF ; i += 0x10) {
		printk(KERN_INFO "T%04X: %08X\|%08X %08X\|%08X\n",
		i,
		readl(adapter->hw.hw_addr + i+4),
		readl(adapter->hw.hw_addr + i),
		readl(adapter->hw.hw_addr + i+12),
		readl(adapter->hw.hw_addr + i+8));
		}
		exit:
		return;
		}

		/**
		* e1000_tx_timeout - Respond to a Tx Hang
		* @netdev: network interface device structure
		@@ -3260,6 +3482,7 @@ static void e1000_reset_task(struct work_struct *work)

		if (test_bit(__E1000_DOWN, &adapter->flags))
		return;
		e_err(drv, "Reset adapter\n");
		e1000_reinit_safe(adapter);
		}

		@@ -3677,6 +3900,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
		eop,
		jiffies,
		eop_desc->upper.fields.status);
		e1000_dump(adapter);
		netif_stop_queue(netdev);
		}
		}