svn commit: r302695 - in head/sys/dev/hyperv: include vmbus
Sepherosa Ziehau
sephe at FreeBSD.org
Wed Jul 13 04:31:10 UTC 2016
Author: sephe
Date: Wed Jul 13 04:31:08 2016
New Revision: 302695
URL: https://svnweb.freebsd.org/changeset/base/302695
Log:
hyperv/vmbus: Add flags field into hv_vmbus_channel for MNF indication
This prepares to remove the unnecessary offer message embedding in
hv_vmbus_channel.
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7019
Modified:
head/sys/dev/hyperv/include/hyperv.h
head/sys/dev/hyperv/vmbus/hv_channel.c
head/sys/dev/hyperv/vmbus/hv_channel_mgmt.c
Modified: head/sys/dev/hyperv/include/hyperv.h
==============================================================================
--- head/sys/dev/hyperv/include/hyperv.h Wed Jul 13 03:35:22 2016 (r302694)
+++ head/sys/dev/hyperv/include/hyperv.h Wed Jul 13 04:31:08 2016 (r302695)
@@ -538,6 +538,7 @@ typedef struct hv_vmbus_channel {
struct vmbus_softc *vmbus_sc;
hv_vmbus_channel_state state;
hv_vmbus_channel_offer_channel offer_msg;
+ uint32_t ch_flags; /* VMBUS_CHAN_FLAG_ */
uint32_t ch_id; /* channel id */
/*
* These are based on the offer_msg.monitor_id.
@@ -636,6 +637,8 @@ typedef struct hv_vmbus_channel {
#define HV_VMBUS_CHAN_ISPRIMARY(chan) ((chan)->primary_channel == NULL)
+#define VMBUS_CHAN_FLAG_HASMNF 0x0001
+
static inline void
hv_set_channel_read_state(hv_vmbus_channel* channel, boolean_t state)
{
Modified: head/sys/dev/hyperv/vmbus/hv_channel.c
==============================================================================
--- head/sys/dev/hyperv/vmbus/hv_channel.c Wed Jul 13 03:35:22 2016 (r302694)
+++ head/sys/dev/hyperv/vmbus/hv_channel.c Wed Jul 13 04:31:08 2016 (r302695)
@@ -67,7 +67,7 @@ vmbus_channel_set_event(hv_vmbus_channel
atomic_set_long(&sc->vmbus_tx_evtflags[chanid >> VMBUS_EVTFLAG_SHIFT],
1UL << (chanid & VMBUS_EVTFLAG_MASK));
- if (channel->offer_msg.monitor_allocated) {
+ if (channel->ch_flags & VMBUS_CHAN_FLAG_HASMNF) {
hv_vmbus_monitor_page *monitor_page;
monitor_page = sc->vmbus_mnf2;
@@ -86,7 +86,7 @@ vmbus_channel_sysctl_monalloc(SYSCTL_HAN
struct hv_vmbus_channel *chan = arg1;
int alloc = 0;
- if (chan->offer_msg.monitor_allocated)
+ if (chan->ch_flags & VMBUS_CHAN_FLAG_HASMNF)
alloc = 1;
return sysctl_handle_int(oidp, &alloc, 0, req);
}
Modified: head/sys/dev/hyperv/vmbus/hv_channel_mgmt.c
==============================================================================
--- head/sys/dev/hyperv/vmbus/hv_channel_mgmt.c Wed Jul 13 03:35:22 2016 (r302694)
+++ head/sys/dev/hyperv/vmbus/hv_channel_mgmt.c Wed Jul 13 04:31:08 2016 (r302695)
@@ -294,6 +294,8 @@ vmbus_channel_on_offer_internal(struct v
new_channel = hv_vmbus_allocate_channel(sc);
new_channel->ch_id = offer->child_rel_id;
new_channel->ch_subidx = offer->offer.sub_channel_index;
+ if (offer->monitor_allocated)
+ new_channel->ch_flags |= VMBUS_CHAN_FLAG_HASMNF;
/*
* By default we setup state to enable batched
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