Date: Wed, 25 Jun 2014 11:17:55 -0400 From: John Baldwin <jhb@freebsd.org> To: Daniel Braniss <danny@cs.huji.ac.il> Cc: freebsd-stable@freebsd.org Subject: Re: pci issues with SBC (AMD G-T40E) - PCEngines apu Message-ID: <201406251117.55634.jhb@freebsd.org> In-Reply-To: <3920AC99-4197-4A36-A573-3D283F36E035@cs.huji.ac.il> References: <0D577669-BF58-4B30-B29A-9A5B05C95112@cs.huji.ac.il> <201406241111.42023.jhb@freebsd.org> <3920AC99-4197-4A36-A573-3D283F36E035@cs.huji.ac.il>
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On Wednesday, June 25, 2014 7:57:12 am Daniel Braniss wrote: >=20 > On Jun 24, 2014, at 6:11 PM, John Baldwin <jhb@freebsd.org> wrote: >=20 > > On Tuesday, June 24, 2014 6:48:56 am Daniel Braniss wrote: > >> Hi all, > >> the short story is that not always all the devices are discovered > >> correctly, i.e. there are 3 RealTek and sometimes all 3 are discovered, > >> sometimes 2,sometimes only one. > >> My guts are telling me it=E2=80=99s a timing issue, is there some dela= y I can put in? > >> I tried booting verbose but the problem is till there. > >> example: > >> =E2=80=A6 > >> re1: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port = 0x2000-0x20ff mem 0xf7b00000-0xf7b00fff,0xf7a00000-0xf7a03fff irq 17 at dev= ice 0.0 on=20 pci2 > >> re1: MSI count : 1 > >> re1: MSI-X count : 4 > >> re1: attempting to allocate 1 MSI-X vectors (4 supported) > >> msi: routing MSI-X IRQ 260 to local APIC 0 vector 55 > >> re1: using IRQ 260 for MSI-X > >> re1: Using 1 MSI-X message > >> re1: ASPM disabled > >> re1: Chip rev. 0x2c000000 > >> re1: MAC rev. 0x00200000 > >> miibus1: <MII bus> on re1 > >> rgephy1: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on mii= bus1 > >> rgephy1: OUI 0x00e04c, model 0x0011, rev. 4 > >> rgephy1: none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100= baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-FDX,= 1000baseT- =46DX- > > master, 1000baseT- > >> FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow > >> re1: bpf attached > >> re1: Ethernet address: 00:0d:b9:34:28:c5 > >> pcib3: <ACPI PCI-PCI bridge> irq 18 at device 6.0 on pci0 > >> pcib0: allocated type 4 (0x3000-0x3fff) for rid 1c of pcib3 > >> pcib0: allocated type 3 (0xf7d00000-0xf7dfffff) for rid 20 of pcib3 > >> pcib0: allocated type 3 (0xf7c00000-0xf7cfffff) for rid 24 of pcib3 > >> pcib3: domain 0 > >> pcib3: secondary bus 3 > >> pcib3: subordinate bus 3 > >> pcib3: I/O decode 0x3000-0x3fff > >> pcib3: memory decode 0xf7d00000-0xf7dfffff > >> pcib3: prefetched decode 0xf7c00000-0xf7cfffff > >> pci3: <ACPI PCI bus> on pcib3 > >> pci3: domain=3D0, physical bus=3D3 > >> found-> vendor=3D0x10ec, dev=3D0x8168, revid=3D0x06 > >> domain=3D0, bus=3D3, slot=3D0, func=3D0 > >> class=3D02-00-00, hdrtype=3D0x00, mfdev=3D0 > >> cmdreg=3D0x0007, statreg=3D0x0010, cachelnsz=3D16 (dwords) > >> lattimer=3D0x00 (0 ns), mingnt=3D0x00 (0 ns), maxlat=3D0x00 (0 = ns) > >> intpin=3Da, irq=3D10 > >> powerspec 3 supports D0 D1 D2 D3 current D0 > >> MSI supports 1 message, 64 bit > >> MSI-X supports 4 messages in map 0x20 > >> map[10]: type I/O Port, range 32, base 0x3000, size 8, enabled > >> pcib3: allocated I/O port range (0x3000-0x30ff) for rid 10 of pci0:3:0= :0 > >> map[18]: type Memory, range 64, base 0xf7d00000, size 12, enabl= ed > >> pcib3: allocated memory range (0xf7d00000-0xf7d00fff) for rid 18 of pc= i0:3:0:0 > >> map[20]: type Prefetchable Memory, range 64, base 0xf7c00000, s= ize 14, enabled > >> pcib3: allocated prefetch range (0xf7c00000-0xf7c03fff) for rid 20 of = pci0:3:0:0 > >> pcib3: matched entry for 3.0.INTA > >> pcib3: slot 0 INTA hardwired to IRQ 18 > >> re2: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port = 0x3000-0x30ff mem 0xf7d00000-0xf7d00fff,0xf7c00000-0xf7c03fff irq 18 at dev= ice 0.0 on=20 pci3 > >> re2: MSI count : 1 > >> re2: MSI-X count : 4 > >> re2: attempting to allocate 1 MSI-X vectors (4 supported) > >> msi: routing MSI-X IRQ 261 to local APIC 0 vector 56 > >> re2: using IRQ 261 for MSI-X > >> re2: Using 1 MSI-X message > >> re2: ASPM disabled > >> re2: Chip rev. 0x80000000 > >> re2: MAC rev. 0x00000000 <=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80= =94=E2=80=94=E2=80=94=E2=80=94=E2=80=94------------ notice this is now zero! > >> re2: Unknown H/W revision: 0x80000000 > >> device_attach: re2 attach returned 6 > >=20 > > The chip rev also looks wrong. I don't know why you are not getting the > > correct values though. I don't see anything obviously wrong like resou= rce > > issues with the BARs. >=20 > anything I can do to try and track this down?, except diving into the sou= rces :-) > i have almost no idea where to start (well, I could with the re driver = =E2=80=A6) > a flashlight might help. Normally when there are resource problems reads of registers return all 1's (e.g 0xffffffff). I would check to see if the register reads to determine = the chip rev are returning that first. =2D-=20 John Baldwin
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