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Differential D7860 Diff 20293 head/sys/dev/hyperv/netvsc/hv_rndis_filter.c

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

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static void hv_rf_receive_data(struct hn_rx_ring *rxr, static void hv_rf_receive_data(struct hn_rx_ring *rxr,
const void *data, int dlen); const void *data, int dlen);
static int hn_rndis_query(struct hn_softc *sc, uint32_t oid, static int hn_rndis_query(struct hn_softc *sc, uint32_t oid,
const void *idata, size_t idlen, void *odata, size_t *odlen0); const void *idata, size_t idlen, void *odata, size_t *odlen0);
static int hn_rndis_set(struct hn_softc *sc, uint32_t oid, const void *data, static int hn_rndis_set(struct hn_softc *sc, uint32_t oid, const void *data,
size_t dlen); size_t dlen);
static int hn_rndis_conf_offload(struct hn_softc *sc); static int hn_rndis_conf_offload(struct hn_softc *sc);
static int hn_rndis_get_rsscaps(struct hn_softc *sc, int *rxr_cnt);
static int hn_rndis_conf_rss(struct hn_softc *sc, int nchan);
static __inline uint32_t static __inline uint32_t
hn_rndis_rid(struct hn_softc *sc) hn_rndis_rid(struct hn_softc *sc)
{ {
uint32_t rid; uint32_t rid;
again: again:
rid = atomic_fetchadd_int(&sc->hn_rndis_rid, 1); rid = atomic_fetchadd_int(&sc->hn_rndis_rid, 1);
▲ Show 20 Lines • Show All 612 Lines • ▼ Show 20 Lineshn_rndis_query(struct hn_softc *sc, uint32_t oid,
*odlen0 = odlen; *odlen0 = odlen;
error = 0; error = 0;
done: done:
vmbus_xact_put(xact); vmbus_xact_put(xact);
return (error); return (error);
} }
static int int
hn_rndis_get_rsscaps(struct hn_softc *sc, int *rxr_cnt) hn_rndis_get_rsscaps(struct hn_softc *sc, int *rxr_cnt)
{ {
struct ndis_rss_caps in, caps; struct ndis_rss_caps in, caps;
size_t caps_len; size_t caps_len;
int error; int error;
/* /*
* Only NDIS 6.30+ is supported. * Only NDIS 6.30+ is supported.
▲ Show 20 Lines • Show All 118 Lines • ▼ Show 20 Lines if (error) {
if_printf(sc->hn_ifp, "offload config failed: %d\n", error); if_printf(sc->hn_ifp, "offload config failed: %d\n", error);
} else { } else {
if (bootverbose) if (bootverbose)
if_printf(sc->hn_ifp, "offload config done\n"); if_printf(sc->hn_ifp, "offload config done\n");
} }
return (error); return (error);
} }
static int int
hn_rndis_conf_rss(struct hn_softc *sc, int nchan) hn_rndis_conf_rss(struct hn_softc *sc, int nchan)
{ {
struct ndis_rssprm_toeplitz *rss = &sc->hn_rss; struct ndis_rssprm_toeplitz *rss = &sc->hn_rss;
struct ndis_rss_params *prm = &rss->rss_params; struct ndis_rss_params *prm = &rss->rss_params;
int i, error; int i, error;
/* /*
* Only NDIS 6.30+ is supported. * Only NDIS 6.30+ is supported.
▲ Show 20 Lines • Show All 131 Lines • ▼ Show 20 Lineshv_rf_halt_device(struct hn_softc *sc)
hn_rndis_xact_exec1(sc, xact, sizeof(*halt), &sndc, &comp_len); hn_rndis_xact_exec1(sc, xact, sizeof(*halt), &sndc, &comp_len);
vmbus_xact_put(xact); vmbus_xact_put(xact);
if (bootverbose) if (bootverbose)
if_printf(sc->hn_ifp, "RNDIS halt done\n"); if_printf(sc->hn_ifp, "RNDIS halt done\n");
return (0); return (0);
} }
static int int
hn_rndis_attach(struct hn_softc *sc) hn_rndis_attach(struct hn_softc *sc)
{ {
int error; int error;
/* /*
* Initialize RNDIS. * Initialize RNDIS.
*/ */
error = hn_rndis_init(sc); error = hn_rndis_init(sc);
if (error) if (error)
return (error); return (error);
/* /*
* Configure NDIS offload settings. * Configure NDIS offload settings.
* XXX no offloading, if error happened? * XXX no offloading, if error happened?
*/ */
hn_rndis_conf_offload(sc); hn_rndis_conf_offload(sc);
return (0);
}
int
hv_rf_on_device_add(struct hn_softc *sc, int *nchan0, int mtu)
{
int ret;
device_t dev = sc->hn_dev;
int nchan = *nchan0, rxr_cnt, nsubch;
ret = hn_nvs_attach(sc, mtu);
if (ret != 0)
return (ret);
ret = hn_rndis_attach(sc);
if (ret != 0)
return (ret);
if (sc->hn_ndis_ver < HN_NDIS_VERSION_6_30 || nchan == 1) {
/*
* Either RSS is not supported, or multiple RX/TX rings
* are not requested.
*/
*nchan0 = 1;
return (0);
}
/*
* Get RSS capabilities, e.g. # of RX rings, and # of indirect
* table entries.
*/
ret = hn_rndis_get_rsscaps(sc, &rxr_cnt);
if (ret) {
/* No RSS; this is benign. */
*nchan0 = 1;
return (0);
}
if_printf(sc->hn_ifp, "RX rings offered %u, requested %d\n",
rxr_cnt, nchan);
if (nchan > rxr_cnt)
nchan = rxr_cnt;
if (nchan == 1) {
device_printf(dev, "only 1 channel is supported, no vRSS\n");
*nchan0 = 1;
return (0);
}
/*
* Allocate sub-channels from NVS.
*/
nsubch = nchan - 1;
ret = hn_nvs_alloc_subchans(sc, &nsubch);
if (ret || nsubch == 0) {
/* Failed to allocate sub-channels. */
*nchan0 = 1;
return (0);
}
nchan = nsubch + 1;
/*
* Configure RSS key and indirect table after all sub-channels
* are allocated.
*/
ret = hn_rndis_conf_rss(sc, nchan);
if (ret != 0) {
/* Failed to configure RSS key or indirect table. */
nchan = 1;
}
*nchan0 = nchan;
return (0); return (0);
} }
/* /*
* RNDIS filter on device remove * RNDIS filter on device remove
*/ */
int int
hv_rf_on_device_remove(struct hn_softc *sc) hv_rf_on_device_remove(struct hn_softc *sc)
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