Dear all:
As you know, I've been gradually working to eliminate all non-MPSAFE network
device driver infrastructure for 8.0, having removed non-MPSAFE network
protocol infrastructure in 7.0. In reviewing remaining drivers using
IFF_NEEDSGIANT, I spotted this in the NDIS code:
718 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
719 ifp->if_mtu = ETHERMTU;
720 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
721 if (sc->ndis_iftype == PNPBus)
722 ifp->if_flags |= IFF_NEEDSGIANT;
723 ifp->if_ioctl = ndis_ioctl;
724 ifp->if_start = ndis_start;
725 ifp->if_init = ndis_init;
Having taken a glance, it looks like this was added specifically to support
USB devices attached via NDIS. With the new USB code, are NDIS drivers still
supported? And in the new world order, is this IFF_NEEDSGIANT still required?
Can I simply remove it once the old USB code is on the way out the door?
(Note that the plan is to remove all device drivers that still require
IFF_NEEDSGIANT some time before 8.0, probably starting with disabling them
from the build in about 2-3 weeks).
Thanks,
Robert N M Watson
Computer Laboratory
University of Cambridge
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