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head/sys/dev/usb/wlan/if_run.c
| Show First 20 Lines • Show All 3,537 Lines • ▼ Show 20 Lines | run_tx_mgt(struct run_softc *sc, struct mbuf *m, struct ieee80211_node *ni) | ||||
| return (0); | return (0); | ||||
| } | } | ||||
| static int | static int | ||||
| run_sendprot(struct run_softc *sc, | run_sendprot(struct run_softc *sc, | ||||
| const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) | const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) | ||||
| { | { | ||||
| struct ieee80211com *ic = ni->ni_ic; | struct ieee80211com *ic = ni->ni_ic; | ||||
| struct ieee80211_frame *wh; | |||||
| struct run_tx_data *data; | struct run_tx_data *data; | ||||
| struct rt2870_txd *txd; | struct rt2870_txd *txd; | ||||
| struct rt2860_txwi *txwi; | struct rt2860_txwi *txwi; | ||||
| struct mbuf *mprot; | struct mbuf *mprot; | ||||
| int ridx; | int ridx; | ||||
| int protrate; | int protrate; | ||||
| int ackrate; | |||||
| int pktlen; | |||||
| int isshort; | |||||
| uint16_t dur; | |||||
| uint8_t type; | |||||
| uint8_t wflags = 0; | uint8_t wflags = 0; | ||||
| uint8_t xflags = 0; | uint8_t xflags = 0; | ||||
| RUN_LOCK_ASSERT(sc, MA_OWNED); | RUN_LOCK_ASSERT(sc, MA_OWNED); | ||||
| KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, | |||||
| ("protection %d", prot)); | |||||
| wh = mtod(m, struct ieee80211_frame *); | |||||
| pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; | |||||
| type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; | |||||
| protrate = ieee80211_ctl_rate(ic->ic_rt, rate); | |||||
| ackrate = ieee80211_ack_rate(ic->ic_rt, rate); | |||||
| isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; | |||||
| dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) | |||||
| + ieee80211_ack_duration(ic->ic_rt, rate, isshort); | |||||
| wflags = RT2860_TX_FRAG; | |||||
| /* check that there are free slots before allocating the mbuf */ | /* check that there are free slots before allocating the mbuf */ | ||||
| if (sc->sc_epq[0].tx_nfree == 0) | if (sc->sc_epq[0].tx_nfree == 0) | ||||
| /* let caller free mbuf */ | /* let caller free mbuf */ | ||||
| return (ENOBUFS); | return (ENOBUFS); | ||||
| if (prot == IEEE80211_PROT_RTSCTS) { | mprot = ieee80211_alloc_prot(ni, m, rate, prot); | ||||
| /* NB: CTS is the same size as an ACK */ | |||||
| dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); | |||||
| xflags |= RT2860_TX_ACK; | |||||
| mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); | |||||
| } else { | |||||
| mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); | |||||
| } | |||||
| if (mprot == NULL) { | if (mprot == NULL) { | ||||
| if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1); | if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1); | ||||
| RUN_DPRINTF(sc, RUN_DEBUG_XMIT, "could not allocate mbuf\n"); | RUN_DPRINTF(sc, RUN_DEBUG_XMIT, "could not allocate mbuf\n"); | ||||
| return (ENOBUFS); | return (ENOBUFS); | ||||
| } | } | ||||
| protrate = ieee80211_ctl_rate(ic->ic_rt, rate); | |||||
| wflags = RT2860_TX_FRAG; | |||||
| xflags = 0; | |||||
| if (prot == IEEE80211_PROT_RTSCTS) | |||||
| xflags |= RT2860_TX_ACK; | |||||
| data = STAILQ_FIRST(&sc->sc_epq[0].tx_fh); | data = STAILQ_FIRST(&sc->sc_epq[0].tx_fh); | ||||
| STAILQ_REMOVE_HEAD(&sc->sc_epq[0].tx_fh, next); | STAILQ_REMOVE_HEAD(&sc->sc_epq[0].tx_fh, next); | ||||
| sc->sc_epq[0].tx_nfree--; | sc->sc_epq[0].tx_nfree--; | ||||
| txd = (struct rt2870_txd *)&data->desc; | txd = (struct rt2870_txd *)&data->desc; | ||||
| txd->flags = RT2860_TX_QSEL_EDCA; | txd->flags = RT2860_TX_QSEL_EDCA; | ||||
| txwi = (struct rt2860_txwi *)(txd + 1); | txwi = (struct rt2860_txwi *)(txd + 1); | ||||
| ▲ Show 20 Lines • Show All 2,733 Lines • Show Last 20 Lines | |||||