From owner-cvs-all  Sat Oct 14 15: 5: 9 2000
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To: Bruce Evans <bde@zeta.org.au>
Cc: Bill Paul <wpaul@freebsd.org>, cvs-committers@freebsd.org,
	cvs-all@freebsd.org
Subject: Re: cvs commit: src/sys/pci if_dc.c if_dcreg.h if_pcn.c if_pcnreg.h if_rl.c if_rlreg.h if_sf.c if_sfreg.h if_sis.c if_sisreg.h if_sk.c if_skreg.h if_ti.c if_tireg.h if_tl.c if_tlreg.h if_vr.c if_vrreg.h if_wb.c if_wbreg.h if_xl.c if_xlreg.h 
In-reply-to: Your message of "Sun, 15 Oct 2000 07:49:10 +1100."
             <Pine.BSF.4.21.0010150737490.46941-100000@besplex.bde.org> 
From: Chuck Paterson <cp@bsdi.com>
Date: Sat, 14 Oct 2000 16:04:46 -0600
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	We are very close to being ready to start allowing drivers
to run without the Giant lock. We can't test this without having
drivers converted. In general the conversion is quite mechanical
and just getting the grunt work done does seem like a good
idea.

Chuck

Date: Sun, 15 Oct 2000 07:49:10 +1100
From:  Bruce Evans <bde@zeta.org.au>
To:  Bill Paul <wpaul@FreeBSD.org>
Subject:  Re: cvs commit: src/sys/pci if_dc.c if_dcreg.h if_pcn.c if_pcnreg.h
	          if_rl.c if_rlreg.h if_sf.c if_sfreg.h if_sis.c if_sisreg.h if_sk.c
	          if_skreg.h if_ti.c if_tireg.h if_tl.c if_tlreg.h if_vr.c        
	  if_vrreg.h if_wb.c if_wbreg.h if_xl.c if_xlreg.h
cc:  cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org

Bruce Evans wrote on: Sun, 15 Oct 2000 07:49:10 +1100
}On Fri, 13 Oct 2000, Bill Paul wrote:
}
}> wpaul       2000/10/13 10:54:22 PDT
}> 
}>   Modified files:
}>     sys/pci              if_dc.c if_dcreg.h if_pcn.c if_pcnreg.h 
}>                          if_rl.c if_rlreg.h if_sf.c if_sfreg.h 
}>                          if_sis.c if_sisreg.h if_sk.c if_skreg.h 
}>                          if_ti.c if_tireg.h if_tl.c if_tlreg.h 
}>                          if_vr.c if_vrreg.h if_wb.c if_wbreg.h 
}>                          if_xl.c if_xlreg.h 
}>   Log:
}>   First round of converting network drivers from spls to mutexes. This
}>   takes care of all the 10/100 and gigE PCI drivers that I've done.
}>   Next will be the wireless drivers, then the USB ones. I may pick up
}>   some stragglers along the way. I'm sort of playing this by ear: if
}>   anyone spots any places where I've screwed up horribly, please let me
}>   know.
}
}It seems premature to me.  Since spls have no effect, it is impossible to
}test any replacement for them.  The kernel essentially runs entirely at
}the old splhigh().  This has apparently already caused problems in the
}ahc driver.  Driver interrupt handling that works in -current might not
}work in -stable, because interrupts can actually occur in -stable.
}
}Bruce
}
}



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