On Mon, Aug 5, 2013 at 8:19 PM, Adrian Chadd <adrian_at_freebsd.org> wrote: > No, brian said two things: > > * the flag, protected by the core lock > * per-queue flags > i see no mentions on per-queue flags on his email. This is the relevant part ------------ What I've done in my drivers is: * Lock the core mutex * Clear IFF_DRV_RUNNING * Lock/unlock each queue's lock The various Rx/Tx queue functions check for IFF_DRV_RUNNING after (re)acquiring their queue lock. See at vtnet_stop_rendezvous() at [1] for an example. [1] http://svnweb.freebsd.org/base/user/bryanv/vtnetmq/sys/dev/virtio/network/if_vtnet.c?revision=252451&view=markup ----------------- > > > > -adrian > -- -----------------------------------------+------------------------------- Prof. Luigi RIZZO, rizzo_at_iet.unipi.it . Dip. di Ing. dell'Informazione http://www.iet.unipi.it/~luigi/ . Universita` di Pisa TEL +39-050-2211611 . via Diotisalvi 2 Mobile +39-338-6809875 . 56122 PISA (Italy) -----------------------------------------+-------------------------------Received on Mon Aug 05 2013 - 18:16:24 UTC
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