Date: Thu, 28 Apr 2011 17:28:37 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-stable@freebsd.org Cc: Wiktor Niesiobedzki <bsd@vink.pl>, Jack Vogel <jfvogel@gmail.com> Subject: Re: No data received with Intel Corporation Gigabit CT Desktop Adapter (82574L) Message-ID: <201104281728.37497.jhb@freebsd.org> In-Reply-To: <BANLkTinSHNK6hkg_LU0K8BPqKqCf8wwipg@mail.gmail.com> References: <BANLkTim-ve2_du3JoZ7NmLLv4OU%2Bk9F-eQ@mail.gmail.com> <BANLkTi=t87a-L3WJY%2Be1G6Jy-w4PhgQz-Q@mail.gmail.com> <BANLkTinSHNK6hkg_LU0K8BPqKqCf8wwipg@mail.gmail.com>
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On Thursday, April 28, 2011 5:17:11 pm Wiktor Niesiobedzki wrote: > Hi, > > I really don't know (I haven't done that intentionally). There is > nothing special in /var/log/messages: > kadlubek# grep -i msix /var/log/messages > Apr 28 21:37:03 kadlubek kernel: em0: Using MSIX interrupts with 0 vectors > > Though sysctl suggests, that I haven't disabled MSIX: > kadlubek# sysctl -a | grep -i msix > hw.pci.enable_msix: 1 > > I've checked further pciconf output (now with -c option also) and there is: > em0@pci0:2:0:0: class=0x020000 card=0xa01f8086 chip=0x10d38086 rev=0x00 hdr=0x00 > vendor = 'Intel Corporation' > device = 'Intel 82574L Gigabit Ethernet Controller (82574L)' > class = network > subclass = ethernet > cap 01[c8] = powerspec 2 supports D0 D3 current D0 > cap 05[d0] = MSI supports 1 message, 64 bit > cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x1(x1) > cap 11[a0] = MSI-X supports 5 messages in map 0x1c enabled > > So it looks, like the card supports MSI-X and has them enabled. > > Though my PCI Express bridges report as: > pcib2@pci0:0:2:0: class=0x060400 card=0xc3231106 chip=0xa3641106 > rev=0x80 hdr=0x01 > vendor = 'VIA Technologies, Inc.' > device = 'P4M900 PCI to PCI Bridge Controller' > class = bridge > subclass = PCI-PCI > cap 10[40] = PCI-Express 1 root port max data 128(256) link x1(x1) > cap 01[68] = powerspec 2 supports D0 D3 current D0 > cap 05[70] = MSI supports 1 message, 64 bit > cap 08[88] = HT MSI fixed address window disabled at 0xfee00000 > cap 0d[98] = PCI Bridge card=0xc3231106 > ecap 0001[100] = AER 1 0 fatal 0 non-fatal 0 corrected > ecap 0002[140] = VC 1 max VC1 > ecap 0005[180] = unknown 1 > pcib3@pci0:0:3:0: class=0x060400 card=0xc3231106 chip=0xc3641106 > rev=0x80 hdr=0x01 > vendor = 'VIA Technologies, Inc.' > device = 'P4M900 PCI to PCI Bridge Controller' > class = bridge > subclass = PCI-PCI > cap 10[40] = PCI-Express 1 root port max data 128(256) link x1(x1) > cap 01[68] = powerspec 2 supports D0 D3 current D0 > cap 05[70] = MSI supports 1 message, 64 bit > cap 08[88] = HT MSI fixed address window disabled at 0xfee00000 > cap 0d[98] = PCI Bridge card=0xc3231106 > ecap 0001[100] = AER 1 0 fatal 0 non-fatal 0 corrected > ecap 0002[140] = VC 1 max VC1 > ecap 0005[180] = unknown 1 > > pcib5@pci0:128:0:0: class=0x060400 card=0x00000000 chip=0x287c1106 > rev=0x00 hdr=0x01 > vendor = 'VIA Technologies, Inc.' > device = 'VT8251 Standard PCIe Root Port' > class = bridge > subclass = PCI-PCI > cap 10[40] = PCI-Express 1 root port max data 128(256) link x0(x2) > cap 01[68] = powerspec 2 supports D0 D3 current D0 > cap 05[70] = MSI supports 1 message, 64 bit, vector masks > cap 08[88] = HT MSI fixed address window disabled at 0xfee00000 > cap 0d[90] = PCI Bridge card=0x00000000 > ecap 0001[100] = AER 1 0 fatal 0 non-fatal 0 corrected > ecap 0002[140] = VC 1 max VC1 > ecap 0005[180] = unknown 1 > pcib6@pci0:128:0:1: class=0x060400 card=0x00000004 chip=0x287d1106 > rev=0x00 hdr=0x01 > vendor = 'VIA Technologies, Inc.' > device = 'VT8251 Standard PCIe Root Port' > class = bridge > subclass = PCI-PCI > cap 10[40] = PCI-Express 1 root port max data 128(256) link x0(x1) > cap 01[68] = powerspec 2 supports D0 D3 current D0 > cap 05[70] = MSI supports 1 message, 64 bit, vector masks > cap 08[88] = HT MSI fixed address window disabled at 0xfee00000 > cap 0d[90] = PCI Bridge card=0x00000004 > > Though they mention that HT MSI windows is disabled. I'm not sure, > whether this matters. Yes, that is probably what breaks this. -- John Baldwin
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