Date: Fri, 26 Feb 2010 14:31:06 -0800 From: Pyun YongHyeon <pyunyh@gmail.com> To: Jonathan Chen <jonc@chen.org.nz> Cc: freebsd-stable@freebsd.org Subject: Re: if_bge upload stalls repeatedly (Was: 8-STABLE outgoing scp stalling frequently) Message-ID: <20100226223106.GN13807@michelle.cdnetworks.com> In-Reply-To: <20100204213137.GA9431@osiris.chen.org.nz> References: <20100202193616.GA16953@osiris.chen.org.nz> <20100202212029.GA5295@asgard.cs.uoi.gr> <20100203225255.GB14315@osiris.chen.org.nz> <20100204012503.GK5901@michelle.cdnetworks.com> <20100204020015.GA17301@osiris.chen.org.nz> <20100204192315.GN5901@michelle.cdnetworks.com> <20100204213137.GA9431@osiris.chen.org.nz>
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On Fri, Feb 05, 2010 at 10:31:37AM +1300, Jonathan Chen wrote: > On Thu, Feb 04, 2010 at 11:23:15AM -0800, Pyun YongHyeon wrote: > > On Thu, Feb 04, 2010 at 03:00:15PM +1300, Jonathan Chen wrote: > > > On Wed, Feb 03, 2010 at 05:25:03PM -0800, Pyun YongHyeon wrote: > [...] > > > > I'm not sure but recently added code to support TSO may cause the > > > > issue. Would you show me verbose boot output(only bge(4) related > > > > one)? > > > > > > bge0: <Broadcom NetXtreme Gigabit Ethernet Controller, ASIC rev. 0x00a002> mem 0xf1bf0000-0xf1bfffff irq 17 at device 0.0 on pci9 > > > bge0: Reserved 0x10000 bytes for rid 0x10 type 3 at 0xf1bf0000 > > > bge0: adjust device control 0x2000 -> 0x5000 > > > bge0: attempting to allocate 1 MSI vectors (1 supported) > > > bge0: using IRQ 258 for MSI > > > bge0: CHIP ID 0x0000a002; ASIC REV 0x0a; CHIP REV 0xa0; PCI-E > > > bge0: Disabling fastboot > > > bge0: Disabling fastboot > > > miibus0: <MII bus> on bge0 > > > bge0: bpf attached > > > bge0: Ethernet address: 00:1d:09:d2:d1:9e > > > bge0: [MPSAFE] > > > bge0: [FILTER] > > > bge0: Disabling fastboot > > > bge0: Disabling fastboot > > > bge0: link UP > > > > > > >To rule out possible TSO issue, disable TSO and try it > > > > again(#ifconfig bge0 -tso). Does it make any difference? > > > > > > Yup, it sure does! With a TSO disabled, my upload and download speeds > > > are pretty much symmetrical at a decent 10MB/s. > > > > > > > Hmm, that means TSO was broken on your controller. Because BCM5755 > > or newer controllers have no known TSO issues I don't know why the > > controller fails on TSO. Very recent controllers use new TSO format > > but I don't think your controller is one of them and FreeBSD has no > > support for these controllers anyway. > > Would you show me the output of "pciconf -lcv" of your bge(4) > > controller? > > bge0@pci0:9:0:0: class=0x020000 card=0x01fe1028 chip=0x167314e4 rev=0x02 hdr=0x00 > vendor = 'Broadcom Corporation' > device = 'NetXtreme BCM5755M Gigabit Ethernet PCIe' > class = network > subclass = ethernet > cap 01[48] = powerspec 3 supports D0 D3 current D0 > cap 03[50] = VPD > cap 09[58] = vendor (length 120) > cap 05[e8] = MSI supports 1 message, 64 bit enabled with 1 message > cap 10[d0] = PCI-Express 1 endpoint max data 128(128) link x1(x1) > > This is on a Dell Latitude D830 Laptop. > I committed a fix which disables TSO on BCM5755M. Still have no idea why it fails though. Thanks for reporting!
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