RE: Lazy SPLs

1999-05-25 Thread Ladavac Marino
> -Original Message- > From: Mike Smith [SMTP:m...@smith.net.au] > Sent: Friday, May 21, 1999 6:05 PM > To: Ladavac Marino > Cc: 'Mike Smith'; Joel Ray Holveck; Doug Rabson; Peter Wemm; Tommy > Hallgren; freebsd-hackers@FreeBSD.ORG > Subject:

Re: Lazy SPLs

1999-05-21 Thread Mike Smith
> > Level-triggered interrupts are persistent conditions, not queueable > > events. They typically require device-driver level intervention to be > > > > cleared. This is a major error in the PCI design (no surprises > > there). > > > [ML] Whoa there! That's the MAJOR advantage of PCI

RE: Lazy SPLs

1999-05-21 Thread Doug Rabson
ckers@FreeBSD.ORG > > Subject:Re: Lazy SPLs > > > > > > > > Why mask out the interrupts at all, instead of queuing them in > > handler > > > level? > > > > Level-triggered interrupts are persistent conditions, not queueable > >

RE: Lazy SPLs

1999-05-21 Thread Ladavac Marino
> -Original Message- > From: Mike Smith [SMTP:m...@smith.net.au] > Sent: Friday, May 21, 1999 2:16 AM > To: Joel Ray Holveck > Cc: Doug Rabson; Peter Wemm; Tommy Hallgren; > freebsd-hackers@FreeBSD.ORG > Subject: Re: Lazy SPLs > > > > >

RE: Lazy SPLs

1999-05-20 Thread Constantine Shkolnyy
On Thursday, May 20, 1999 7:18 PM, Joel Ray Holveck [SMTP:jo...@gnu.org] wrote: > >>> "Lazy SPLs - The kernel no longer masks hardware events unless a > >>> hardware event actually occurs, avoiding many expensive > >>> operations." > >> We&#

Re: Lazy SPLs

1999-05-20 Thread Mike Smith
> >>> "Lazy SPLs - The kernel no longer masks hardware events unless a > >>> hardware event actually occurs, avoiding many expensive > >>> operations." > >> We've been doing it for as long as I can remember, at least as far > >>

Re: Lazy SPLs

1999-05-20 Thread Joel Ray Holveck
>>> "Lazy SPLs - The kernel no longer masks hardware events unless a >>> hardware event actually occurs, avoiding many expensive >>> operations." >> We've been doing it for as long as I can remember, at least as far >> back as 2.0.5, probably

Re: Lazy SPLs

1999-05-20 Thread Doug Rabson
On Thu, 20 May 1999, Peter Wemm wrote: > Tommy Hallgren wrote: > > Hi! > > > > I'm reading http://www.BSDI.COM/products/internet/40-qna.mhtml#Q5 and found > > t > he > > following peice of text: > > > > "Lazy SPLs - The kernel

Re: Lazy SPLs

1999-05-20 Thread Peter Wemm
Tommy Hallgren wrote: > Hi! > > I'm reading http://www.BSDI.COM/products/internet/40-qna.mhtml#Q5 and found t he > following peice of text: > > "Lazy SPLs - The kernel no longer masks hardware events unless a hardware eve nt > actually occurs, avo

Lazy SPLs

1999-05-20 Thread Tommy Hallgren
Hi! I'm reading http://www.BSDI.COM/products/internet/40-qna.mhtml#Q5 and found the following peice of text: "Lazy SPLs - The kernel no longer masks hardware events unless a hardware event actually occurs, avoiding many expensive operations." Does anyone know what this is?