Re: 3c905C for a linux router
Donald Becker <[email protected]>
| Newsgroups | gmane.linux.drivers.vortex.devel |
|---|---|
| Message-ID | <[email protected]> |
On Fri, 8 Nov 2002, Ralph Doncaster wrote: > > Deferring Rx interrupts requires hardware support. While it's possible > > to change the Rx interrupt setting to only interrupt with every second > > or third packet, low rate traffic (imagine 'ping') will be unacceptably > > delayed. > > Low rate traffic for this box would be >10mbps, so 1 interrupt ever 5-10 > packets would be fine with me. If it's only a couple lines to change in > the source I'd be willing to try it out. I just checked -- the 3c905 does not have an Interrupt-in-Rx bit in the Rx descriptors. Most other other chips do, and my drivers always sets the bit. Doing otherwise is really, really horrible idea and will never make it into a driver I release. (Of course if you submit it to the kernel maintainer a dozen times, it's likely to be put in the kernel anyway.) -- Donald Becker [email protected] Scyld Computing Corporation http://www.scyld.com 410 Severn Ave. Suite 210 Scyld Beowulf cluster system Annapolis MD 21403 410-990-9993 _______________________________________________ vortex mailing list [email protected] http://www.scyld.com/mailman/listinfo/vortex