> From: Brad <b...@comstyle.com>
> Date: Thu, 13 Jan 2011 19:59:27 -0500
>
> On Saturday 17 April 2010 13:59:56 Brad wrote:
> > Please test the following diff with any msk(4) adapters.
> >
> > Just check that the interfaces are working before and after
> > applying the diff.
> >
> >
> > This corrects the interrupt moderation timer ticks setting
> > for the various generations of chipsets so that the
> > SK_IM_USECS() macro works properly when used elsewhere in
> > the code.
> >
> >
> > Plase provide a dmesg.
> >
>
> This was tested with the following chipsets but it could use a bit more
> testing on other ASIC revisions other than the Yukon-2 EC Ultra. Please
> test especially if you have a Yukon-2 FE or Yukon-2 FE+ based chipset.
>
> mskc0 at pci4 dev 0 function 0 "Marvell Yukon 88E8056" rev 0x12, Yukon-2 EC
> Ultra rev. B0 (0x3): apic 4 int 17 (irq 10)
> mskc0 at pci3 dev 0 function 0 "Marvell Yukon 88E8058" rev 0x13, Yukon-2 EC
> Ultra rev. B0 (0x3): apic 1 int 17 (irq 7)
And *how* exactly was this tested? Did anybody actually provide you
with benchmarks showing that this has no impact on the throughput (in
pps and bps) and interrupt load on the CPU?
> > Index: if_msk.c
> > ===================================================================
> > RCS file: /cvs/src/sys/dev/pci/if_msk.c,v
> > retrieving revision 1.86
> > diff -u -p -r1.86 if_msk.c
> > --- if_msk.c 9 Jan 2010 02:40:18 -0000 1.86
> > +++ if_msk.c 17 Apr 2010 17:39:18 -0000
> > @@ -754,10 +754,21 @@ mskc_reset(struct sk_softc *sc)
> > */
> > switch (sc->sk_type) {
> > case SK_YUKON_EC:
> > - case SK_YUKON_XL:
> > - case SK_YUKON_FE:
> > + case SK_YUKON_EC_U:
> > + case SK_YUKON_EX:
> > + case SK_YUKON_SUPR:
> > + case SK_YUKON_ULTRA2:
> > imtimer_ticks = SK_IMTIMER_TICKS_YUKON_EC;
> > break;
> > + case SK_YUKON_FE:
> > + imtimer_ticks = SK_IMTIMER_TICKS_YUKON_FE;
> > + break;
> > + case SK_YUKON_FE_P:
> > + imtimer_ticks = SK_IMTIMER_TICKS_YUKON_FE_P;
> > + break;
> > + case SK_YUKON_XL:
> > + imtimer_ticks = SK_IMTIMER_TICKS_YUKON_XL;
> > + break;
> > default:
> > imtimer_ticks = SK_IMTIMER_TICKS_YUKON;
> > }
> > Index: if_skreg.h
> > ===================================================================
> > RCS file: /cvs/src/sys/dev/pci/if_skreg.h,v
> > retrieving revision 1.53
> > diff -u -p -r1.53 if_skreg.h
> > --- if_skreg.h 29 Mar 2009 14:36:34 -0000 1.53
> > +++ if_skreg.h 4 Mar 2010 00:15:36 -0000
> > @@ -394,9 +394,12 @@
> > #define SK_IMCTL_START 0x04
> >
> > /* Number of ticks per usec for interrupt moderation */
> > +#define SK_IMTIMER_TICKS_YUKON_FE_P 50
> > #define SK_IMTIMER_TICKS_GENESIS 53
> > #define SK_IMTIMER_TICKS_YUKON 78
> > +#define SK_IMTIMER_TICKS_YUKON_FE 100
> > #define SK_IMTIMER_TICKS_YUKON_EC 125
> > +#define SK_IMTIMER_TICKS_YUKON_XL 156
> > #define SK_IM_USECS(x) ((x) * imtimer_ticks)
> >
> > /*
>
> --
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