Hi All,
1. Sorry, bus master is not enabled by core but my internel driver during
enumeration.
2. I disabled this but later pci_set_master from igb driver enables bus
master and subsequently any config space write results in hang. Below is
log.
[ 4.755092] tun: Universal TUN/TAP device driver, 1.6
[ 4.760412] tun: (C) 1999-2004 Max Krasnyansky <m...@qualcomm.com>
[ 4.767129] igb: Intel(R) Gigabit Ethernet Network Driver - version
5.0.3-k
[ 4.774440] igb: Copyright (c) 2007-2013 Intel Corporation.
[ 4.780364] PCI: enabling device 0000:01:00.0 (0140 -> 0142)
[ 15.325507] Unhandled fault: imprecise external abort (0x1406) at
0x00000000
[ 15.332896] Internal error: : 1406 [#1] PREEMPT SMP ARM
[ 15.338369] Modules linked in:
[ 15.341599] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
3.10.33-gce40538-dirty #290
[ 15.349437] task: ef092a40 ti: ef0d6000 task.ti: ef0d6000
[ 15.355102] PC is at igb_reset_hw_82580+0xdc/0x244
[ 15.360128] LR is at try_to_del_timer_sync+0x5c/0x68
[ 15.365330] pc : [<c04697e8>] lr : [<c0076134>] psr: 60000013
[ 15.365330] sp : ef0d7de0 ip : 00000000 fp : 00000001
[ 15.377337] r10: ef00e000 r9 : 00000000 r8 : 301103b3
[ 15.398091] r7 : 0c1c0241 r6 : c0c66000 r5 : 00000000 r4 : ef00e910
[ 15.420140] r3 : f0400000 r2 : 00000000 r1 : a0000013 r0 : 00000000
[ 15.427067] ata1: SATA link down (SStatus 0 SControl 300)
[ 15.462779] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment
kernel
[ 15.485460] Control: 10c5387d Table: 8000406a DAC: 00000015
[ 15.506469]
[ 15.506469] PC: 0xc0469768:
[ 15.540959] 9768 e19630b3 e3130004 1a000067 f57ff04f e3e02000 e5943004
e58320d8 f57ff04f
[ 15.564657] 9788 e3a02000 e5943004 e5832100 f57ff04f e3a02008 e5943004
e5832400 e5943004
[ 15.588227] 97a8 e5932008 f57ff04f e3a0000a ebf032ad e3550000 1a00002f
e3a05000 e3877301
[ 15.611781] 97c8 f57ff04f e5943004 e5837000 e5943004 e5932008 f57ff04f
e3550000 1a000032
[ 15.635375] 97e8 e1a00004 eb000c16 e3500000 0a000003 e30031f2 e19630b3
e3130004 1a00003b
[ 15.658895] 9808 f57ff04f e3a02601 e5943004 e5832008 f57ff04f e3e02000
e5943004 e58320d8
[ 15.682360] 9828 e5943004 e59320c0 f57ff04f e1a00004 ebfffb62 e3500000
0a000003 e300320a
[ 15.705742] 9848 e19630b3 e3130004 1a000021 e1a00004 eb000707 e3550000
e1a06000 0a000003
[ 15.729109]
[ 15.729109] LR: 0xc00760b4:
[ 15.762894] 60b4 e1a01000 e5943000 e1560003 1a000001 e1a00007 e8bd80f8
e1a00007 eb1cebf1
[ 15.786093] 60d4 eafffff0 e92d4030 e24dd00c e92d4000 e8bd4000 e1a05000
e28d1004 e280000c
[ 15.809207] 60f4 ebffffe3 e5903004 e1a04000 e1530005 03e05000 0a000006
e3a03000 e1a00005
[ 15.832362] 6114 e5853020 e1a01004 e3a02001 ebfffe5e e1a05000 e1a00004
e59d1004 eb1cebd9
[ 15.855667] 6134 e1a00005 e28dd00c e8bd8030 e92d4010 e92d4000 e8bd4000
e1a0300d e3c32d7f
[ 15.879163] 6154 e3a03000 e3c2203f e34033ff e5922004 e1a04000 e0023003
e3530000 0a000009
[ 15.902736] 6174 e590300c e3130002 1a000006 e59f0028 e3001424 ebffc124
e1a00004 ebffffd0
[ 15.926442] 6194 e3500000 aa000003 e1a00004 ebffffcc e3500000 bafffffb
e8bd8010 c096c744
[ 15.950171]
[ 15.950171] SP: 0xef0d7d60:
[ 15.984886] 7d60 fdc42000 ef0d6000 60000013 ffffffff ef0d7dcc c000ec60
ef0d6000 ef00e000
[ 16.008775] 7d80 c04697e8 60000013 ffffffff ef0d7dcc 301103b3 c000ebd8
00000000 a0000013
[ 16.032678] 7da0 00000000 f0400000 ef00e910 00000000 c0c66000 0c1c0241
301103b3 00000000
[ 16.056575] 7dc0 ef00e000 00000001 00000000 ef0d7de0 c0076134 c04697e8
60000013 ffffffff
[ 16.080528] 7de0 c046970c eb704000 00000000 ef00e4c0 eb704068 c045f978
eb704068 c03e9270
[ 16.104568] 7e00 30110193 00000002 30110393 00000000 00110013 00000000
ef00e920 ef00e910
[ 16.128769] 7e20 eb704068 60000013 00000004 00004f38 c0b2c604 eb704000
ef0d7e74 c0c220bc
[ 16.152801] 7e40 eb704068 c0c64f38 c0b2c604 c0c220f0 00000000 c02bb0cc
c081637c eb704000
[ 16.176726]
[ 16.176726] R3: 0xf03fff80:
[ 16.211382] ff80 ******** ******** ******** ******** ******** ********
******** ********
[ 16.235062] ffa0 ******** ******** ******** ******** ******** ********
******** ********
[ 16.258515] ffc0 ******** ******** ******** ******** ******** ********
******** ********
[ 16.281734] ffe0 ******** ******** ******** ******** ******** ********
******** ********
[ 16.304940] 0000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 100.543440] 0020 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 184.781705] 0040
On Mon, Apr 28, 2014 at 11:04 PM, Fujinaka, Todd <todd.fujin...@intel.com>wrote:
> I'm afraid that the issue you're seeing is with the PCIe in your ARM
> system. You're going to have to clear that up before you can get anything
> working on the PCIe bus such as an Ethernet controller. I would suggest
> contacting an ARM mailing list.
>
> Todd Fujinaka
> Software Application Engineer
> Networking Division (ND)
> Intel Corporation
> todd.fujin...@intel.com
> (503) 712-4565
>
> -----Original Message-----
> From: shiv prakash Agarwal [mailto:chhotu.s...@gmail.com]
> Sent: Saturday, April 26, 2014 11:04 AM
> To: Vick, Matthew
> Cc: e1000-devel@lists.sourceforge.net
> Subject: Re: [E1000-devel] ARM support for igb driver
>
> Hi Vick,
>
> Thanks for response.
>
> 1. I see this bit is also set while enumeration itself before igb driver
> is loaded.
> 2. Clearing this bit allows enumeration to be successful, setting it
> results in hang of any device config space writes.
> 3. Same root complex works for other cards like Intel NIC using e1000e
> driver.
> 4. Same issue seen with other I210 NIC cards.
>
>
>
> On Fri, Apr 25, 2014 at 9:17 PM, Vick, Matthew <matthew.v...@intel.com
> >wrote:
>
> > The device needs to set the Bus Master Enable bit so that it can
> > initiate DMA transactions. Without it set, it isn't really functional.
> >
> > If leaving that bit cleared lets you function, I would think it's
> > more of an issue with the root complex or associated bridges than the
> > device itself. It's possible it's an issue with the I210 you have, so
> > another option could be to try another I210. In either case, you
> > really should be contacting your hardware suppliers for support.
> >
> > Cheers,
> > Matthew
> >
> > From: shiv prakash Agarwal <chhotu.s...@gmail.com>
> > Date: Thursday, April 24, 2014 at 10:38 PM
> > To: Matthew Vick <matthew.v...@intel.com>
> > Cc: Carolyn Wyborny <carolyn.wybo...@intel.com>, "Rose, Gregory V" <
> > gregory.v.r...@intel.com>, "Kirsher, Jeffrey T" <
> > jeffrey.t.kirs...@intel.com>, "e1000-devel@lists.sourceforge.net" <
> > e1000-devel@lists.sourceforge.net>
> > Subject: Re: ARM support for igb driver
> >
> > Thanks Matthew,
> >
> > On furthur debug, I found that this hang happening on enabling Bus
> > Master Enable bit(bit 2) of command register (offset 0x4) in config
> space.
> > On disabling this bit, no hang occurs.
> >
> > Any idea on this behaviour?
> >
> >
> >
> > On Thu, Apr 24, 2014 at 11:51 PM, Vick, Matthew <matthew.v...@intel.com
> >wrote:
> >
> >> (Top-posting, I know, sorry! I'm adding e1000-devel, our support
> >> list for these kinds of inquiries.)
> >>
> >> It looks like you have a problem at the platform level with a PCI
> >> bridge, rather than a problem with our NIC. I think the right next
> >> step would be to contact your hardware vendor for your system.
> >>
> >> Cheers,
> >> Matthew
> >>
> >> From: shiv prakash Agarwal <chhotu.s...@gmail.com>
> >> Date: Thursday, April 24, 2014 at 6:38 AM
> >> To: Matthew Vick <matthew.v...@intel.com>, Carolyn Wyborny <
> >> carolyn.wybo...@intel.com>, "Rose, Gregory V"
> >> <gregory.v.r...@intel.com>, "Kirsher, Jeffrey T"
> >> <jeffrey.t.kirs...@intel.com>
> >> Subject: ARM support for igb driver
> >>
> >> Hi All,
> >>
> >> I am using below Intel I210 NIC card using igb driver on ARM
> >>
> >>
> >> http://www.intel.com/content/www/us/en/ethernet-controllers/ethernet-
> >> controller-i210-i211-family.html
> >>
> >> But during configuration stage, it hangs as soon as we do write
> >> access to device configuration space.
> >>
> >> Has anybody tested Intel I210 NIC card using igb driver on ARM? Any
> >> idea on above behaviour, log is below:
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> *PCI host bridge to bus 0000:00 pci_bus 0000:00: root bus resource
> >> [mem 0x32100000-0x3fffffff] pci_bus 0000:00: root bus resource [mem
> >> 0x12100000-0x320fffff pref] pci_bus 0000:00: root bus resource [io
> >> 0x1000-0xffff] pci_bus 0000:00: No busn resource found for root bus,
> >> will use [bus 00-ff] pci 0000:00:00.0: [10de:0e12] type 01 class
> >> 0x060400 pci
> >> 0000:00:00.0: PME# supported from D0 D1 D2 D3hot D3cold PCI: bus0:
> >> Fast back to back transfers disabled pci 0000:00:00.0: bridge
> >> configuration invalid ([bus 00-00]), reconfiguring pci 0000:01:00.0:
> >> [8086:1533] type 00 class 0x020000 pci 0000:01:00.0: reg 10: [mem
> >> 0x00000000-0x000fffff] Unhandled fault: imprecise external abort
> >> (0x1406) at 0x00000000 Internal
> >> error: : 1406 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 1
> Comm:
> >> swapper/0 Not tainted 3.10.24 #2 task: ef06fa40 ti: ef0b2000 task.ti:
> >> ef0b2000*
> >>
> >
> >
>
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