Differential D8559 Diff 22482 head/sys/dev/hyperv/netvsc/hn_nvs.c

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head/sys/dev/hyperv/netvsc/hn_nvs.c

Show First 20 Lines • Show All 330 Lines • ▼ Show 20 Lines	if (error) {
if_printf(sc->hn_ifp,		if_printf(sc->hn_ifp,
"send nvs rxbuf disconn failed: %d\n", error);		"send nvs rxbuf disconn failed: %d\n", error);
return (error);		return (error);
}		}
sc->hn_flags &= ~HN_FLAG_RXBUF_CONNECTED;		sc->hn_flags &= ~HN_FLAG_RXBUF_CONNECTED;

/*		/*
* Wait for the hypervisor to receive this NVS request.		* Wait for the hypervisor to receive this NVS request.
		*
		* NOTE:
		* The TX bufring will not be drained by the hypervisor,
		* if the primary channel is revoked.
*/		*/
while (!vmbus_chan_tx_empty(sc->hn_prichan))		while (!vmbus_chan_tx_empty(sc->hn_prichan) &&
		!vmbus_chan_is_revoked(sc->hn_prichan))
pause("waittx", 1);		pause("waittx", 1);
/*		/*
* Linger long enough for NVS to disconnect RXBUF.		* Linger long enough for NVS to disconnect RXBUF.
*/		*/
pause("lingtx", (200 * hz) / 1000);		pause("lingtx", (200 * hz) / 1000);
}		}

if (sc->hn_rxbuf_gpadl != 0) {		if (sc->hn_rxbuf_gpadl != 0) {
Show All 33 Lines	if (error) {
if_printf(sc->hn_ifp,		if_printf(sc->hn_ifp,
"send nvs chim disconn failed: %d\n", error);		"send nvs chim disconn failed: %d\n", error);
return (error);		return (error);
}		}
sc->hn_flags &= ~HN_FLAG_CHIM_CONNECTED;		sc->hn_flags &= ~HN_FLAG_CHIM_CONNECTED;

/*		/*
* Wait for the hypervisor to receive this NVS request.		* Wait for the hypervisor to receive this NVS request.
		*
		* NOTE:
		* The TX bufring will not be drained by the hypervisor,
		* if the primary channel is revoked.
*/		*/
while (!vmbus_chan_tx_empty(sc->hn_prichan))		while (!vmbus_chan_tx_empty(sc->hn_prichan) &&
		!vmbus_chan_is_revoked(sc->hn_prichan))
pause("waittx", 1);		pause("waittx", 1);
/*		/*
* Linger long enough for NVS to disconnect chimney		* Linger long enough for NVS to disconnect chimney
* sending buffer.		* sending buffer.
*/		*/
pause("lingtx", (200 * hz) / 1000);		pause("lingtx", (200 * hz) / 1000);
}		}

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