Message-ID: <CAD6G_RQef0pQqswW6jsfSgpBC=81wBWcL63t3oR04sM2aHFvPw@mail.gmail.com>
Date:	Tue, 11 Mar 2014 19:11:28 +0530
From:	Jagan Teki <jagannadh.teki@...il.com>
To:	Michael Chan <mchan@...adcom.com>
Cc:	netdev@...r.kernel.org,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Nithin Nayak Sujir <nsujir@...adcom.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>, aav@...inx.com,
	Srikanth T <srikuuuu@...il.com>
Subject: Re: ethernet/broadcom/tg3.c - DMA Status error with INTx

On Tue, Mar 11, 2014 at 3:29 PM, Jagan Teki <jagannadh.teki@...il.com> wrote:
> Hi All,
>
> We observed DMA status error issue on tg3 while setting link up, this
> is PCIe bridge with tg3 endpoint
> which I would discussed on earlier thread [1]
>
> From the below log dump, INTx is trigger two times from the EP where
> second trigger once the
> reading of 0x204 is done in ISR, sblk->status on tg3_poll caused a
> SD_STATUS_ERROR.
>
> What is this SD_STATUS_ERROR implies? Request for any help on this issue.
>
> Log dump:
> # ifconfig eth0 up
> pcie_handler: 0x1
> # iter 0 status_tag = 0x1, last_irq_tag = 0x0 in ISR
> writing on 0x204 in ISR
> reading 0x204 in ISR
> (tg3_int_reenable) writing on 0x204 in BH
>
> #
> # pcie_handler: 0x1
> iter 1 status_tag = 0x2, last_irq_tag = 0x1 in ISR
> writing on 0x204 in ISR
> reading 0x204 in ISR
> 0x4804 = 0x10, 0x4c04 = 0x0
> tg3 0000:01:00.0 eth0: DMA Status error.  Resetting chip.
> tg3 0000:01:00.0 eth0: 0x00000000: 0x167714e4, 0x40100146, 0x02000021,
> 0x00000010
> tg3 0000:01:00.0 eth0: 0x00000010: 0x40500004, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000020: 0x00000000, 0x00000000, 0x00000007,
> 0x167714e4
> tg3 0000:01:00.0 eth0: 0x00000030: 0x80120000, 0x00000048, 0x00000000,
> 0x00000159
> tg3 0000:01:00.0 eth0: 0x00000040: 0x00000000, 0x00000000, 0x40025001,
> 0x64002000
> tg3 0000:01:00.0 eth0: 0x00000050: 0x00fc5803, 0x78000000, 0x0086d005,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000060: 0x002240c0, 0x00000000, 0x42010298,
> 0x76180000
> tg3 0000:01:00.0 eth0: 0x00000070: 0x000010f2, 0x000000a0, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000080: 0x167714e4, 0x00000000, 0x04130034,
> 0x3c081082
> tg3 0000:01:00.0 eth0: 0x00000090: 0x01000709, 0x00000001, 0x00000000,
> 0x000000c8
> tg3 0000:01:00.0 eth0: 0x000000b0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000000c0: 0x00000000, 0x00000000, 0x0000000e,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x000000d0: 0x00010010, 0x00000fa0, 0x00122000,
> 0x00036c11
> tg3 0000:01:00.0 eth0: 0x00 0000e0: 0x10110000, 0x00000000,
> 0x00000000, 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000100: 0x13c10001, 0x00004000, 0x00000000,
> 0x00062010
> tg3 0000:01:00.0 eth0: 0x00000110: 0x00000001, 0x00000000, 0x000000ae,
> 0x40000001
> tg3 0000:01:00.0 eth0: 0x00000120: 0x0000000f, 0x40500204, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000130: 0x00000000, 0x00000000, 0x00000000,
> 0x16010002
> tg3 0000:01:00.0 eth0: 0x00000150: 0x800000ff, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000160: 0x16c10003, 0xfe32d2a9, 0x001018ff,
> 0x00010004
> tg3 0000:01:00.0 eth0: 0x00000170: 0x00000000, 0x0007810e, 0x00000000,
> 0x2c0c3c0e
> tg3 0000:01:00.0 eth0: 0x00000180: 0x3f062304, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000200: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00000210: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00000220: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00000230: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00000240: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00000250: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00000260: 0x00000000, 0x00000001, 0x00000000,
> 0x000000c8
> tg3 0000:01:00.0 eth0: 0x00000270: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00000400: 0x00e04808, 0x00401000, 0x00001000,
> 0x00000880
> tg3 0000:01:00.0 eth0: 0x00000410: 0x00000010, 0x1832d2a9, 0x00000010,
> 0x1832d2a9
> tg3 0000:01:00.0 eth0: 0x00000420: 0x00000010, 0x1832d2a9, 0x00000010,
> 0x1832d2a9
> tg3 0000:01:00.0 eth0: 0x00000430: 0x00000000, 0x00000000, 0x0000022d,
> 0x000005f2
> tg3 0000:01:00.0 eth0: 0x00000440: 0x00000000, 0x00000000, 0x00000000,
> 0x08340000
> tg3 0000:01:00.0 eth0: 0x00000450: 0x00000001, 0x000c0000, 0x00000000,
> 0x00000002
> tg3 0000:01:00.0 eth0: 0x00000460: 0x00000008, 0x00002620, 0x00000002,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000470: 0x00000000, 0x00000000, 0x00000000,
> 0x40000000
> tg3 0000:01:00.0 eth0: 0x00000480: 0x42000000, 0x7fffffff, 0x06000004,
> 0x7fffffff
> tg3 0000:01:00.0 eth0: 0x00000500: 0x00000008, 0x00000002, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000590: 0x01e00000, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000600: 0xffffffff, 0x00f80011, 0x00000000,
> 0x00001f04
> tg3 0000:01:00.0 eth0: 0x00000610: 0xffffffff, 0x00000000, 0x07c00004,
> 0x31201000
> tg3 0000:01:00.0 eth0: 0x00000620: 0x00000040, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000800: 0x00000000, 0xffffffff, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000810: 0x00000000, 0xffffffff, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000820: 0x00000000, 0x00000000, 0xffffffff,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000830: 0x00000000, 0xffffffff, 0xffffffff,
> 0xffffffff
> tg3 0000:01:00.0 eth0: 0x00000840: 0xffffffff, 0xffffffff, 0xffffffff,
> 0xffffffff
> tg3 0000:01:00.0 eth0: 0x00000850: 0xffffffff, 0xffffffff, 0xffffffff,
> 0xffffffff
> tg3 0000:01:00.0 eth0: 0x00000860: 0xffffffff, 0xffffffff, 0xffffffff,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x000008f0: 0x00000001, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00000c00: 0x0000000a, 0x00000000, 0x00000003,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00000ce0: 0x2f1b0142, 0x00000000, 0x0000002a,
> 0x00040028
> tg3 0000:01:00.0 eth0: 0x00000cf0: 0x00000000, 0x40000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00001000: 0x00000002, 0x00000000, 0xa0000208,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00001010: 0x00000060, 0x00000208, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00001400: 0x00000006, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00001480: 0x00000001, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00001800: 0x00000016, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00001840: 0x00000000, 0x00000000, 0x00000200,
> 0x00000010
> tg3 0000:01:00.0 eth0: 0x00001850: 0x2e846000, 0x00000000, 0x00004000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00001c00: 0x00000002, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002000: 0x00000002, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002010: 0x00000181, 0x00000001, 0x00790807,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002100: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002110: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002120: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002130: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002140: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002150: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002160: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002170: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002180: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002190: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x000021a0: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x000021b0: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x000021c0: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x000021d0: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x000021e0: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x000021f0: 0x000c5028, 0x000c5028, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002400: 0x00000012, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002450: 0x00000000, 0x2e854000, 0x02000000,
> 0x00006000
> tg3 0000:01:00.0 eth0: 0x000024c0: 0x08000001, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002800: 0x00000006, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00002c00: 0x00000006, 0x00000000, 0x00000000,
> 0x0000007f
> tg3 0000:01:00.0 eth0: 0x00002c10: 0x00000000, 0x00000000, 0x00000008,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00003000: 0x00000006, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00003c00: 0x00000302, 0x00000000, 0x00000014,
> 0x00000048
> tg3 0000:01:00.0 eth0: 0x00003c10: 0x00000005, 0x00000035, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00003c20: 0x00000005, 0x00000005, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00003c30: 0x00000000, 0x00000000, 0x00000000,
> 0x2f16b000
> tg3 0000:01:00.0 eth0: 0x00003c40: 0x00000000, 0x00000b00, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004000: 0x00000002, 0x00000000, 0x00100400,
> 0x00000048
> tg3 0000:01:00.0 eth0: 0x00004010: 0x00408660, 0x00000012, 0x00800440,
> 0x008400d2
> tg3 0000:01:00.0 eth0: 0x00004020: 0x0021b441, 0x00000000, 0x00000010,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004030: 0x00000010, 0x00000030, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004040: 0x00000000, 0x00000000, 0x00000010,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004050: 0x00000000, 0x00000000, 0x00228040,
> 0x00407002
> tg3 0000:01:00.0 eth0: 0x00004060: 0x00400000, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004400: 0x00000006, 0x00000000, 0x00011080,
> 0x0000df80
> tg3 0000:01:00.0 eth0: 0x00004410: 0x00000000, 0x00000010, 0x00000060,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004420: 0x0000003d, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004440: 0x00000000, 0x00000000, 0x00000000,
> 0x00802001
> tg3 0000:01:00.0 eth0: 0x00004450: 0x000103be, 0x00000001, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004800: 0x080303fe, 0x00000010, 0x01000000,
> 0x00000020
> tg3 0000:01:00.0 eth0: 0x00004810: 0x00000011, 0x00000004, 0x00000001,
> 0x00000004
> tg3 0000:01:00.0 eth0: 0x00004820: 0x0fe00000, 0x00000000, 0xa0a40fe0,
> 0x2e854000
> tg3 0000:01:00.0 eth0: 0x00004830: 0x00000fe0, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004840: 0x00000000, 0x00000000, 0x000e0000,
> 0x000eefb4
> tg3 0000:01:00.0 eth0: 0x00004850: 0xffff0000, 0x8400002a, 0x07080708,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004c00: 0x000003fe, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004c10: 0x0000002a, 0x00000000, 0x00000003,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00004c20: 0x00000000, 0x00000000, 0x00000000,
> 0x00000003
> tg3 0000:01:00.0 eth0: 0x00004c30: 0x00000000, 0x00000000, 0x00000008,
> 0x00000008
> tg3 0000:01:00.0 eth0: 0x00004c40: 0x00000000, 0x2f16b000, 0x00010040,
> 0x00000020
> tg3 0000:01:00.0 eth0: 0x00005000: 0x00009800, 0x80004000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00005010: 0x00000000, 0x00000000, 0x00000000,
> 0x00010790
> tg3 0000:01:00.0 eth0: 0x00005020: 0x03e00008, 0x00000000, 0x00000000,
> 0x40000020
> tg3 0000:01:00.0 eth0: 0x00005030: 0x00000000, 0x0000001d, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00005040: 0x00000000, 0x00000000, 0x0001084c,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00005200: 0xc0000000, 0x0001ff90, 0x00000000,
> 0x4b657654
> tg3 0000:01:00.0 eth0: 0x00005210: 0x00000000, 0x00000000, 0x00010850,
> 0x0001ff90
> tg3 0000:01:00.0 eth0: 0x00005220: 0x00000000, 0xb49a89ab, 0xc0000000,
> 0x0001ff90
> tg3 0000:01:00.0 eth0: 0x00005230: 0x00000000, 0x4b657654, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00005240: 0x00010850, 0x0001ff90, 0x00000000,
> 0x00080000
> tg3 0000:01:00.0 eth0: 0x00005250: 0x00000000, 0x00000000, 0x00000000,
> 0x4b657654
> tg3 0000:01:00.0 eth0: 0x00005260: 0x00000000, 0x00000000, 0x0001ff90,
> 0x0001ff90
> tg3 0000:01:00.0 eth0: 0x00005270: 0x00000000, 0x00000000, 0x00000000,
> 0x0001ff90
> tg3 0000:01:00.0 eth0: 0x00005800: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005810: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005820: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005830: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005840: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005850: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005860: 0x00000000, 0x00000001, 0x00000000,
> 0x000000c8
> tg3 0000:01:00.0 eth0: 0x00005870: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005880: 0x00000000, 0x00000000, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005890: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000058a0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000058b0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000058c0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000058d0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000058e0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000058f0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005900: 0x00000000, 0x00000000, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005910: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005920: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005930: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005940: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005950: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005960: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005970: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005980: 0x00000000, 0x00000000, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005990: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000059a0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000059b0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000059c0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000059d0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000059e0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x000059f0: 0x00000000, 0x00000001, 0x00000000,
> 0x00000001
> tg3 0000:01:00.0 eth0: 0x00005a00: 0x00012001, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00006000: 0x00000002, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00006800: 0x04130034, 0x3c081082, 0x01000709,
> 0x0045f5eb
> tg3 0000:01:00.0 eth0: 0x00006810: 0x83120000, 0xffffffff, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00006830: 0xfffc3ccf, 0xfffc0fff, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00006840: 0x00000024, 0x00000000, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00006c40: 0x00000000, 0x000f0000, 0x00000000,
> 0x00000012
> tg3 0000:01:00.0 eth0: 0x00007000: 0x00000188, 0x00000000, 0x00000000,
> 0x000000c0
> tg3 0000:01:00.0 eth0: 0x00007010: 0x0a000064, 0x02008273, 0x00570081,
> 0x68848353
> tg3 0000:01:00.0 eth0: 0x00007020: 0x00000000, 0x00000000, 0xaf000400,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00007400: 0x00000000, 0x000000aa, 0x00000000,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00007800: 0x00000000, 0x00000000, 0x00000001,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0x00007810: 0x00000000, 0x00000060, 0x000000fb,
> 0x00000000
> tg3 0000:01:00.0 eth0: 0: Host status block
> [00000007:00000002:(0000:0000:0000):(0000:0000)]
> tg3 0000:01:00.0 eth0: 0: NAPI info
> [00000001:00000002:(0000:0000:01ff):0000:(00c8:0000:0000:0000)]
> tg3 0000:01:00.0 eth0: Link is up at 1000 Mbps, full duplex
> tg3 0000:01:00.0 eth0: Flow control is on for TX and on for RX
> (tg3_int_reenable) writing on 0x204 in BH
>
>
> [1] http://www.spinics.net/lists/netdev/msg273502.html

Just add one more point here, Read DMA Status Register(0x4804) value here
was 0x10 which means Read DMA PCI Parity Error, can anyone send what are
the possible cases to trigger this error.!

-- 
Jagan.
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