CVS commit: [netbsd-10] src/sys/dev/pci

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Sat Sep 21 12:30:43 UTC 2024

Modified Files:
        src/sys/dev/pci [netbsd-10]: if_vmx.c

Log Message:
Pull up following revision(s) (requested by rin in ticket #904):

        sys/dev/pci/if_vmx.c: revision 1.12

vmxnet(4): Fix various MP bugs.
- Defer reset to workqueue.
   => vmxnet3_stop_locked is forbidden in softint.
   => XXX Problem: We still take the core lock in softint, and we
      still take the core lock around vmxnet3_stop_locked.  TBD.
- Touch if_flags only under IFNET_LOCK.
   => Cache ifp->if_flags & IFF_PROMISC in vmxnet3_ifflags_cb.
   => Don't call vmxnet3_set_rxfilter unless up and running; cache
      this as vmx_mcastactive.  Use ENETRESET in vmxnet3_ifflags_cb
      instead of calling vmxnet3_set_rxfilter directly.
      . (The cache is currently serialized by the core lock, but it
        might reasonably be serialized by an independent lock like in
        usbnet(9).)
- Fix vmxnet3_stop_rendezvous so it actually does something.
   => New vxtxq_stopping, vxrxq_stopping variables synchronize with
      Rx/Tx interrupt handlers.
- Sprinkle IFNET_LOCK and core lock assertions.


To generate a diff of this commit:
cvs rdiff -u -r1.11.4.1 -r1.11.4.2 src/sys/dev/pci/if_vmx.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.