[ofa-general] Re: Cannot get MSI-X verctors on RHEL5-up1

[Eli Cohen]

Adding Doug whom I omitted by mistake.

On Thu, 2008-03-20 at 15:07 +0200, Eli Cohen wrote:
> I opened a bug in Redhat bugzilla:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=438330
> 
> On Thu, 2008-03-20 at 14:31 +0200, Tziporet Koren wrote:
> > Hi Doug,
> > 
> > We found that on RHEL5 up1 we do not succeed to get MSI-X vectors with for ConnectX with the mlx4 driver.
> > Note that on RHEL5 we do get them.
> > 
> > Any help will be appreciated.
> > 
> > Thanks
> > Tziporet
> > 
> > This is the output of lspci -vv so you can see that the MSI-X is available by the device
> > 
> > 13:00.0 InfiniBand: Mellanox Technologies MT25418 [ConnectX IB DDR] (rev a0)
> >         Subsystem: Mellanox Technologies MT25418 [ConnectX IB DDR]
> >         Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B-
> >         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> >         Latency: 0, Cache Line Size: 64 bytes
> >         Interrupt: pin A routed to IRQ 177
> >         Region 0: Memory at fdf00000 (64-bit, non-prefetchable) [size=1M]
> >         Region 2: Memory at f7000000 (64-bit, prefetchable) [size=8M]
> >         Region 4: Memory at fdef0000 (64-bit, non-prefetchable) [size=8K]
> >         Capabilities: [40] Power Management version 3
> >                 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> >                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> >         Capabilities: [48] Vital Product Data
> >         Capabilities: [9c] MSI-X: Enable- Mask- TabSize=256
> >                 Vector table: BAR=4 offset=00000000
> >                 PBA: BAR=4 offset=00001000
> >         Capabilities: [60] Express Endpoint IRQ 0
> >                 Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag+
> >                 Device: Latency L0s <64ns, L1 unlimited
> >                 Device: AtnBtn- AtnInd- PwrInd-
> >                 Device: Errors: Correctable- Non-Fatal+ Fatal+ Unsupported-
> >                 Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
> >                 Device: MaxPayload 256 bytes, MaxReadReq 4096 bytes
> >                 Link: Supported Speed 2.5Gb/s, Width x8, ASPM L0s, Port 8
> >                 Link: Latency L0s unlimited, L1 unlimited
> >                 Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch-
> >                 Link: Speed 2.5Gb/s, Width x8
> > 
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