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hyperv/vmbus: Allow driver to inject synchronous task into channel taskq.

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MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8208
This commit is contained in:
Sepherosa Ziehau 2016-10-11 02:43:23 +00:00
parent eb46c98711
commit cca23e7c3c
2 changed files with 11 additions and 0 deletions
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3
sys/dev/hyperv/include/vmbus.h
View File

@ -117,6 +117,7 @@ struct vmbus_chan_br {
struct vmbus_channel;
struct hyperv_guid;
struct task;
typedef void (*vmbus_chan_callback_t)(struct vmbus_channel *, void *);
@ -134,6 +135,8 @@ int vmbus_chan_open_br(struct vmbus_channel *chan,
int udlen, vmbus_chan_callback_t cb, void *cbarg);
void vmbus_chan_close(struct vmbus_channel *chan);
void vmbus_chan_intr_drain(struct vmbus_channel *chan);
void vmbus_chan_run_task(struct vmbus_channel *chan,
struct task *task);
int vmbus_chan_gpadl_connect(struct vmbus_channel *chan,
bus_addr_t paddr, int size, uint32_t *gpadl);

8
sys/dev/hyperv/vmbus/vmbus_chan.c
View File

@ -1713,3 +1713,11 @@ vmbus_chan_rx_empty(const struct vmbus_channel *chan)
return (vmbus_rxbr_empty(&chan->ch_rxbr));
}
void
vmbus_chan_run_task(struct vmbus_channel *chan, struct task *task)
{
taskqueue_enqueue(chan->ch_tq, task);
taskqueue_drain(chan->ch_tq, task);
}