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hyperv/vmbus: Alloc/Free monitor param in vmbus channel alloc/free.

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MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7101
This commit is contained in:
Sepherosa Ziehau 2016-07-14 06:18:11 +00:00
parent 1c4f5adba9
commit 88cafda3b1
2 changed files with 35 additions and 35 deletions
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69
sys/dev/hyperv/vmbus/hv_channel_mgmt.c
View File

@ -40,7 +40,6 @@
typedef void (*vmbus_chanmsg_proc_t)
(struct vmbus_softc *, const struct vmbus_message *);
static struct hv_vmbus_channel *hv_vmbus_allocate_channel(struct vmbus_softc *);
static void vmbus_channel_on_offer_internal(struct vmbus_softc *,
const struct vmbus_chanmsg_choffer *);
static void vmbus_chan_detach_task(void *, int);
@ -76,32 +75,39 @@ vmbus_chanmsg_process[VMBUS_CHANMSG_TYPE_MAX] = {
#undef VMBUS_CHANMSG_PROC_WAKEUP
#undef VMBUS_CHANMSG_PROC
/**
* @brief Allocate and initialize a vmbus channel object
*/
static struct hv_vmbus_channel *
hv_vmbus_allocate_channel(struct vmbus_softc *sc)
vmbus_chan_alloc(struct vmbus_softc *sc)
{
struct hv_vmbus_channel *channel;
struct hv_vmbus_channel *chan;
channel = malloc(sizeof(*channel), M_DEVBUF, M_WAITOK | M_ZERO);
channel->vmbus_sc = sc;
chan = malloc(sizeof(*chan), M_DEVBUF, M_WAITOK | M_ZERO);
mtx_init(&channel->sc_lock, "vmbus multi channel", NULL, MTX_DEF);
TAILQ_INIT(&channel->sc_list_anchor);
TASK_INIT(&channel->ch_detach_task, 0, vmbus_chan_detach_task, channel);
chan->ch_monprm = hyperv_dmamem_alloc(bus_get_dma_tag(sc->vmbus_dev),
HYPERCALL_PARAM_ALIGN, 0, sizeof(struct hyperv_mon_param),
&chan->ch_monprm_dma, BUS_DMA_WAITOK | BUS_DMA_ZERO);
if (chan->ch_monprm == NULL) {
device_printf(sc->vmbus_dev, "monprm alloc failed\n");
free(chan, M_DEVBUF);
return NULL;
}
return (channel);
chan->vmbus_sc = sc;
mtx_init(&chan->sc_lock, "vmbus multi channel", NULL, MTX_DEF);
TAILQ_INIT(&chan->sc_list_anchor);
TASK_INIT(&chan->ch_detach_task, 0, vmbus_chan_detach_task, chan);
return chan;
}
/**
* @brief Release the resources used by the vmbus channel object
*/
void
hv_vmbus_free_vmbus_channel(hv_vmbus_channel* channel)
static void
vmbus_chan_free(struct hv_vmbus_channel *chan)
{
mtx_destroy(&channel->sc_lock);
free(channel, M_DEVBUF);
/* TODO: assert sub-channel list is empty */
/* TODO: asset no longer on the primary channel's sub-channel list */
/* TODO: asset no longer on the vmbus channel list */
hyperv_dmamem_free(&chan->ch_monprm_dma, chan->ch_monprm);
mtx_destroy(&chan->sc_lock);
free(chan, M_DEVBUF);
}
/**
@ -200,7 +206,7 @@ vmbus_channel_process_offer(hv_vmbus_channel *new_channel)
printf("VMBUS: duplicated primary channel%u\n",
new_channel->ch_id);
hv_vmbus_free_vmbus_channel(new_channel);
vmbus_chan_free(new_channel);
return;
}
@ -284,7 +290,13 @@ vmbus_channel_on_offer_internal(struct vmbus_softc *sc,
/*
* Allocate the channel object and save this offer
*/
new_channel = hv_vmbus_allocate_channel(sc);
new_channel = vmbus_chan_alloc(sc);
if (new_channel == NULL) {
device_printf(sc->vmbus_dev, "allocate chan%u failed\n",
offer->chm_chanid);
return;
}
new_channel->ch_id = offer->chm_chanid;
new_channel->ch_subidx = offer->chm_subidx;
new_channel->ch_guid_type = offer->chm_chtype;
@ -295,17 +307,6 @@ vmbus_channel_on_offer_internal(struct vmbus_softc *sc,
if (offer->chm_flags1 & VMBUS_CHOFFER_FLAG1_HASMNF)
new_channel->ch_flags |= VMBUS_CHAN_FLAG_HASMNF;
new_channel->ch_monprm = hyperv_dmamem_alloc(
bus_get_dma_tag(sc->vmbus_dev),
HYPERCALL_PARAM_ALIGN, 0, sizeof(struct hyperv_mon_param),
&new_channel->ch_monprm_dma, BUS_DMA_WAITOK | BUS_DMA_ZERO);
if (new_channel->ch_monprm == NULL) {
device_printf(sc->vmbus_dev, "monprm alloc failed\n");
/* XXX */
mtx_destroy(&new_channel->sc_lock);
free(new_channel, M_DEVBUF);
return;
}
new_channel->ch_monprm->mp_connid = VMBUS_CONNID_EVENT;
if (sc->vmbus_version != VMBUS_VERSION_WS2008)
new_channel->ch_monprm->mp_connid = offer->chm_connid;
@ -410,7 +411,7 @@ vmbus_chan_detach_task(void *xchan, int pending __unused)
mtx_unlock(&pri_chan->sc_lock);
wakeup(pri_chan);
hv_vmbus_free_vmbus_channel(chan);
vmbus_chan_free(chan);
}
}
@ -445,7 +446,7 @@ hv_vmbus_release_unattached_channels(struct vmbus_softc *sc)
/* Only primary channel owns the device */
hv_vmbus_child_device_unregister(channel);
}
hv_vmbus_free_vmbus_channel(channel);
vmbus_chan_free(channel);
}
bzero(sc->vmbus_chmap,
sizeof(struct hv_vmbus_channel *) * VMBUS_CHAN_MAX);

1
sys/dev/hyperv/vmbus/hv_vmbus_priv.h
View File

@ -147,7 +147,6 @@ void hv_ring_buffer_read_begin(
uint32_t hv_ring_buffer_read_end(
hv_vmbus_ring_buffer_info *ring_info);
void hv_vmbus_free_vmbus_channel(hv_vmbus_channel *channel);
void hv_vmbus_release_unattached_channels(
struct vmbus_softc *);