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hyperv/vmbus: Get rid of rel{_id,id}, use channel id consistently.

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MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7100
This commit is contained in:
Sepherosa Ziehau 2016-07-14 06:10:00 +00:00
parent 5ef8204d4b
commit d805de567f
2 changed files with 9 additions and 13 deletions
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16
sys/dev/hyperv/vmbus/hv_channel.c
View File

@ -897,25 +897,23 @@ vmbus_event_flags_proc(struct vmbus_softc *sc, volatile u_long *event_flags,
int f;
for (f = 0; f < flag_cnt; ++f) {
uint32_t rel_id_base;
uint32_t chid_base;
u_long flags;
int bit;
int chid_ofs;
if (event_flags[f] == 0)
continue;
flags = atomic_swap_long(&event_flags[f], 0);
rel_id_base = f << VMBUS_EVTFLAG_SHIFT;
chid_base = f << VMBUS_EVTFLAG_SHIFT;
while ((bit = ffsl(flags)) != 0) {
while ((chid_ofs = ffsl(flags)) != 0) {
struct hv_vmbus_channel *channel;
uint32_t rel_id;
--bit; /* NOTE: ffsl is 1-based */
flags &= ~(1UL << bit);
--chid_ofs; /* NOTE: ffsl is 1-based */
flags &= ~(1UL << chid_ofs);
rel_id = rel_id_base + bit;
channel = sc->vmbus_chmap[rel_id];
channel = sc->vmbus_chmap[chid_base + chid_ofs];
/* if channel is closed or closing */
if (channel == NULL || channel->rxq == NULL)

6
sys/dev/hyperv/vmbus/hv_channel_mgmt.c
View File

@ -113,20 +113,18 @@ vmbus_channel_process_offer(hv_vmbus_channel *new_channel)
{
struct vmbus_softc *sc = new_channel->vmbus_sc;
hv_vmbus_channel* channel;
uint32_t relid;
relid = new_channel->ch_id;
/*
* Make sure this is a new offer
*/
mtx_lock(&sc->vmbus_chlist_lock);
if (relid == 0) {
if (new_channel->ch_id == 0) {
/*
* XXX channel0 will not be processed; skip it.
*/
printf("VMBUS: got channel0 offer\n");
} else {
sc->vmbus_chmap[relid] = new_channel;
sc->vmbus_chmap[new_channel->ch_id] = new_channel;
}
TAILQ_FOREACH(channel, &sc->vmbus_chlist, ch_link) {