Messages in this thread | | | From | Stefan Hoffmeister <> | Subject | NIC + PCI busmaster problems? (2.2, 2.4) - Was: Re: 8139too driver broken? (2.4-test12) | Date | Fri, 29 Dec 2000 03:23:46 +0100 |
| |
: On Sat, 23 Dec 2000 18:50:53 +0100, Stefan Hoffmeister wrote:
>: On Fri, 22 Dec 2000 18:34:46 +0000 (GMT), Alan Cox wrote: > >>2.2.18 might help and also as an '8139too' driver rewrite which may work > >Advancing further to a 2.4-test12 kernel (with the latest available >8139too driver - 0.9.12) improves the situation even further, but doesn't >solve it.
Cool, I am talking to myself again.
Is it possible that problems in busmastering support cause these problems (2.2 + 2.4)?
There has been a bit of "swap the nic" fun, some work with Manfred on the Realtek, and it seems as if the Realtek 8139 drivers are not to blame, because a 3com 509C-TX exhibits even worse problems in the same system, while both the Realtek 8139 and the 3com 509C-TX perform fine (8 MB/s) when dropped into a different system.
Due to that, I believe that the Realtek itself is not to blame, but the system it is stuck in :-)
HP Omnibook 800, P133, 48 MB, in the docking station
00:00.0 Host bridge: VLSI Technology Inc 82C535 (rev 03) 00:01.0 PCI bridge: VLSI Technology Inc 82C534 (rev 03) 00:02.0 Class ff00: VLSI Technology Inc 82C532 (rev 02)
Complete lspci -vv at end of message.
In total, I have tried three different NICs (Realtek 8029(AS), Realtek 8129B, 3com 905C-TX). Of these, only the Realtek 8029(AS) performs as expected:
* Realtek 8029(AS), ne2k-pci: 1100+-1 KB/s send; 1000+-30 KB/s receive (netperf) "ping -s 65000" works
but
* Realtek 8139B, 8139too: 3500+-10 KB/s send; 1300 +-400(!) KB/s receive (netperf) "ping -s 4433" (>3 packets) - 100% packet loss at the Realtek
* 3com 905C-TX, 3c59x: 3500+-10 KB/s send; 400 (!) +-300(!) KB/s receive (netperf) "ping -s 2593" (>2 packets) - 100% packet loss at the 3com 905C-TX
* 3com 905C-TX, 3c90x: 3500+-10 KB/s send; 400 (!) +-300(!) KB/s receive (netperf) "ping -s 3300" (>2.5 packets) - 100% packet loss at the 3com 905C-TX
I find it interesting that only the card that *doesn't* do busmastering (Realtek 8029(AS), according to lspci -vv) performs in an acceptable manner.
Could busmastering problems be responsible for this?
TIA! Stefan
********************************** 00:00.0 Host bridge: VLSI Technology Inc 82C535 (rev 03) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0
00:01.0 PCI bridge: VLSI Technology Inc 82C534 (rev 03) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 00004000-00007fff Memory behind bridge: 20000000-2fffffff Prefetchable memory behind bridge: 30000000-3fffffff BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
00:02.0 Class ff00: VLSI Technology Inc 82C532 (rev 02) Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
00:03.0 VGA compatible controller: Neomagic Corporation NM2070 [MagicGraph NM2070] (rev 01) (prog-if 00 [VGA]) Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 0 Region 0: Memory at c0000000 (32-bit, prefetchable)
00:04.0 CardBus bridge: Texas Instruments PCI1130 (rev 04) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64, cache line size 08 Interrupt: pin A routed to IRQ 0 Region 0: Memory at <ignored> (32-bit, non-prefetchable) Bus: primary=00, secondary=20, subordinate=22, sec-latency=32 I/O window 0: 00000000-00000003 I/O window 1: 00000000-00000003 BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite- 16-bit legacy interface ports at 0001
00:04.1 CardBus bridge: Texas Instruments PCI1130 (rev 04) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64, cache line size 08 Interrupt: pin B routed to IRQ 0 Region 0: Memory at <ignored> (32-bit, non-prefetchable) Bus: primary=00, secondary=23, subordinate=25, sec-latency=32 I/O window 0: 00000000-00000003 I/O window 1: 00000000-00000003 BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite- 16-bit legacy interface ports at 0001
00:06.0 IRDA controller: VLSI Technology Inc 82C147 (rev 02) Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 0 Region 0: I/O ports at 1000
01:00.0 SCSI storage controller: Symbios Logic Inc. (formerly NCR) 53c810 (rev 11) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 128 (2000ns min, 16000ns max), cache line size 04 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at 4100 Region 1: Memory at 20000100 (32-bit, non-prefetchable)
01:05.0 ISA bridge: VLSI Technology Inc 82C538 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0
01:06.0 Ethernet controller: 3Com Corporation 3c905C-TX [Fast Etherlink] (rev 74) Subsystem: 3Com Corporation 3C905C-TX Fast Etherlink for PC Management NIC Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 128 (2500ns min, 2500ns max), cache line size 04 Interrupt: pin A routed to IRQ 15 Region 0: I/O ports at 4000 Region 1: Memory at 20000000 (32-bit, non-prefetchable) Expansion ROM at 21f00000 Capabilities: [dc] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-) Status: D0 PME-Enable+ DSel=0 DScale=2 PME-
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
| |