diff options
| author | Sepherosa Ziehau <sephe@FreeBSD.org> | 2017-10-10 08:16:55 +0000 |
|---|---|---|
| committer | Sepherosa Ziehau <sephe@FreeBSD.org> | 2017-10-10 08:16:55 +0000 |
| commit | 8dc07838dbfd1f4b9a9fef6df2ce73829bb834ce (patch) | |
| tree | 05fee19ba798f6c6aed37519f8e426e530f60a17 /sys/dev | |
| parent | 5b347b28cd121a5dbed849957c83090a6f1e4d6a (diff) | |
Notes
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/hyperv/vmbus/vmbus.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/sys/dev/hyperv/vmbus/vmbus.c b/sys/dev/hyperv/vmbus/vmbus.c index dc924d0a79340..e8c683f59f4da 100644 --- a/sys/dev/hyperv/vmbus/vmbus.c +++ b/sys/dev/hyperv/vmbus/vmbus.c @@ -128,6 +128,13 @@ static void vmbus_event_proc_dummy(struct vmbus_softc *, static struct vmbus_softc *vmbus_sc; +SYSCTL_NODE(_hw, OID_AUTO, vmbus, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, + "Hyper-V vmbus"); + +static int vmbus_pin_evttask = 1; +SYSCTL_INT(_hw_vmbus, OID_AUTO, pin_evttask, CTLFLAG_RDTUN, + &vmbus_pin_evttask, 0, "Pin event tasks to their respective CPU"); + extern inthand_t IDTVEC(vmbus_isr); static const uint32_t vmbus_version[] = { @@ -905,10 +912,16 @@ vmbus_intr_setup(struct vmbus_softc *sc) VMBUS_PCPU_GET(sc, event_tq, cpu) = taskqueue_create_fast( "hyperv event", M_WAITOK, taskqueue_thread_enqueue, VMBUS_PCPU_PTR(sc, event_tq, cpu)); - CPU_SETOF(cpu, &cpu_mask); - taskqueue_start_threads_cpuset( - VMBUS_PCPU_PTR(sc, event_tq, cpu), 1, PI_NET, &cpu_mask, - "hvevent%d", cpu); + if (vmbus_pin_evttask) { + CPU_SETOF(cpu, &cpu_mask); + taskqueue_start_threads_cpuset( + VMBUS_PCPU_PTR(sc, event_tq, cpu), 1, PI_NET, + &cpu_mask, "hvevent%d", cpu); + } else { + taskqueue_start_threads( + VMBUS_PCPU_PTR(sc, event_tq, cpu), 1, PI_NET, + "hvevent%d", cpu); + } /* * Setup tasks and taskqueues to handle messages. |