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Re: RFC: mpsafe bridge and NIC drivers (vioif and wm)
On Jun 20, 2014, at 5:57 AM, Ryota Ozaki <ozaki-r%iij.ad.jp@localhost> wrote:
> I've prepared a trial patch of MPSAFE networking.
The kmutex_t in ifqueue, etc. should be pointers and not in the structure
That can simply the macros to test for a NULL pointer for the locks in the
Consider using mutex_obj_alloc to get mutexes instead of the embedding them in
Some of your macros are missing 'do's :)
> It enables the interrupt handler of if_wm to run without
> KERNEL_LOCK; an interrupt context and a LWP context (e.g.,
> wm_start) run in parallel safely.
> You can try it by applying the patch to -current
> and commenting in NET_MPSAFE in sys/net/if.h.
> A complete patch of my work can be found at usual places:
> - http://www.netbsd.org/~ozaki-r/mpsafe-bridge-wm-vioif.diff
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