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hyperv/hn: Add compat code for RNDIS reorganization phase.

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MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7621
This commit is contained in:
Sepherosa Ziehau 2016-08-25 04:52:50 +00:00
parent 6cc86f82b7
commit fec38279d8
1 changed files with 11 additions and 4 deletions
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13
sys/dev/hyperv/netvsc/hv_rndis_filter.c
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@ -62,6 +62,9 @@ __FBSDID("$FreeBSD$");
HV_RF_RECVINFO_HASHINF | \
HV_RF_RECVINFO_HASHVAL)
#define HN_RNDIS_RID_COMPAT_MASK 0xffff
#define HN_RNDIS_RID_COMPAT_MAX HN_RNDIS_RID_COMPAT_MASK
/*
* Forward declarations
*/
@ -202,9 +205,8 @@ hv_rndis_request(rndis_device *device, uint32_t message_type,
* as a template.
*/
set = &rndis_mesg->msg.set_request;
set->request_id = atomic_fetchadd_int(&device->new_request_id, 1);
/* Increment to get the new value (call above returns old value) */
set->request_id += 1;
set->request_id = atomic_fetchadd_int(&device->new_request_id, 1) &
HN_RNDIS_RID_COMPAT_MASK;
/* Add to the request list */
mtx_lock(&device->req_lock);
@ -552,6 +554,7 @@ hv_rf_on_receive(struct hn_softc *sc, struct hn_rx_ring *rxr,
{
rndis_device *rndis_dev;
const rndis_msg *rndis_hdr;
const struct rndis_comp_hdr *comp;
rndis_dev = sc->rndis_dev;
if (rndis_dev->state == RNDIS_DEV_UNINITIALIZED)
@ -569,7 +572,11 @@ hv_rf_on_receive(struct hn_softc *sc, struct hn_rx_ring *rxr,
case REMOTE_NDIS_QUERY_CMPLT:
case REMOTE_NDIS_SET_CMPLT:
case REMOTE_NDIS_KEEPALIVE_CMPLT:
comp = data;
if (comp->rm_rid <= HN_RNDIS_RID_COMPAT_MAX) {
/* Transition time compat code */
hv_rf_receive_response(rndis_dev, rndis_hdr);
}
break;
/* notification message */