----- Original Message ----- >Date: Fri, 20 Feb 2009 22:54:41 +0800 >From: Evan Yan <evan....@sun.com> >Subject: Re: [driver-discuss] How to make nxge interface consume more than 2 > MSI-X interrupts? >To: Masa Murayama <khf04...@nifty.ne.jp> >Cc: driver-discuss@opensolaris.org > > >I'm not sure whether the output from prtconf helps, but here it is. > >The T5120 integrated one: >Hardware properties: >name='ddi-intr-weight' type=int items=1 >value=00000023 >name='compatible' type=string items=7 >value='pciex108e,abcd.108e.0.1' + 'pciex108e,abcd.108e.0' + >'pciex108e,abcd.1' + 'pciex108e,abcd' + 'pciexclass,020000' + >'pciexclass,0200' + 'pci108e,abcd' > >The standalone one: >name='compatible' type=string items=13 >value='pciex108e,abcd.108e.0.1' + 'pciex108e,abcd.108e.0' + >'pciex108e,abcd.1' + 'pciex108e,abcd' + 'pciexclass,020000' + >'pciexclass,0200' + 'pci108e,abcd.108e.0.1' + 'pci108e,abcd.108e.0' + >'pci108e,0' + 'pci108e,abcd.1' + 'pci108e,abcd' + 'pciclass,020000' + >'pciclass,0200' > >If it's a 1G card. Is there a way that I can force it to allocate more >than 2 MSI-X interrupts?
No way, I think. I found following comment in nxge source code. /* PSARC/2007/453 MSI-X interrupt limit override. */ #define NXGE_MSIX_REQUEST_10G 8 #define NXGE_MSIX_REQUEST_1G 2 -masa >Thanks, >-Evan > >Evan Yan wrote: >> Hi Masa, >> >> Thanks for reply. >> >> Is there anyway I can tell it's a 10G or 1G? like any sign on the card >> or any variable's value during the driver attach? >> >> Thanks, >> -Evan >> >> Masa Murayama wrote: >> >>> ----- Original Message ----- >>> >>> >>>> Date: Fri, 20 Feb 2009 22:01:05 +0800 >>>> From: Evan Yan <evan....@sun.com> >>>> To: driver-discuss@opensolaris.org >>>> Subject: [driver-discuss] How to make nxge interface consume more than 2 >>>> MSI-X interrupts? >>>> >>>> >>>> Hi there, >>>> >>>> To verify a bug, I need some device consuming more than 2 MSI-X >>>> interrupts. I was told that nxge nic card is of that type. >>>> >>>> I have a X4200 M2 box with a nxge card installed, and another T5120 >>>> sparc box with integrated nxge interface. I have added "set >>>> ddi_msix_alloc_limit=8" in /etc/system for the two boxes, and added "set >>>> pcplusmp:apic_msix_max=8", "set pcplusmp:apic_multi_msi_max=8" for the >>>> x86 box. However the behavior is not as expected. In the x86 box, the >>>> two nxge instances allocated 2 MSI interrupts for each. In the sparc >>>> box, the two nxge instances allocated 2 MSI-X interrupts. >>>> >>>> Did I miss something? How to make them allocate more than 2 MSI-X >>>> interrupts? >>>> >>>> >>>> >>> Which type of nxge card did you use ? 10G or 1G ? >>> >>> For 1G nxge cards, it allocates 2 interrupts per port. It is >>> right behavior. >>> >>> -masa >>> >>> >> >> _______________________________________________ driver-discuss mailing list driver-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/driver-discuss
