Differential D58098 Diff 182324 sys/dev/bwi/if_bwi.c

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sys/dev/bwi/if_bwi.c

Show First 20 Lines • Show All 1,358 Lines • ▼ Show 20 Lines	bwi_start_locked(struct bwi_softc *sc)
trans = 0;		trans = 0;
idx = tbd->tbd_idx;		idx = tbd->tbd_idx;

while (tbd->tbd_buf[idx].tb_mbuf == NULL &&		while (tbd->tbd_buf[idx].tb_mbuf == NULL &&
tbd->tbd_used + BWI_TX_NSPRDESC < BWI_TX_NDESC &&		tbd->tbd_used + BWI_TX_NSPRDESC < BWI_TX_NDESC &&
(m = mbufq_dequeue(&sc->sc_snd)) != NULL) {		(m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;		ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
wh = mtod(m, struct ieee80211_frame *);		wh = mtod(m, struct ieee80211_frame *);
ieee80211_output_seqno_assign(ni, -1, m);
if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) != 0 &&		if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) != 0 &&
ieee80211_crypto_encap(ni, m) == NULL) {		ieee80211_crypto_encap(ni, m) == NULL) {
if_inc_counter(ni->ni_vap->iv_ifp,		if_inc_counter(ni->ni_vap->iv_ifp,
IFCOUNTER_OERRORS, 1);		IFCOUNTER_OERRORS, 1);
ieee80211_free_node(ni);		ieee80211_free_node(ni);
m_freem(m);		m_freem(m);
continue;		continue;
}		}
▲ Show 20 Lines • Show All 1,522 Lines • ▼ Show 20 Lines	bwi_plcp_header(const struct ieee80211_rate_table *rt,
if (modtype == IEEE80211_T_OFDM)		if (modtype == IEEE80211_T_OFDM)
bwi_ofdm_plcp_header(plcp, pkt_len, rate);		bwi_ofdm_plcp_header(plcp, pkt_len, rate);
else if (modtype == IEEE80211_T_DS)		else if (modtype == IEEE80211_T_DS)
bwi_ds_plcp_header(plcp, pkt_len, rate);		bwi_ds_plcp_header(plcp, pkt_len, rate);
else		else
panic("unsupported modulation type %u\n", modtype);		panic("unsupported modulation type %u\n", modtype);
}		}

		/*
		* @brief Encapsulate a frame for transmit.
		*
		* Note that this must be called inside the same lock / path
		* as the crypto encap call in the transmit path.
		*/
static int		static int
bwi_encap(struct bwi_softc sc, int idx, struct mbuf m,		bwi_encap(struct bwi_softc sc, int idx, struct mbuf m,
struct ieee80211_node *ni)		struct ieee80211_node *ni)
{		{
struct ieee80211vap *vap = ni->ni_vap;		struct ieee80211vap *vap = ni->ni_vap;
struct ieee80211com *ic = &sc->sc_ic;		struct ieee80211com *ic = &sc->sc_ic;
struct bwi_ring_data *rd = &sc->sc_tx_rdata[BWI_TX_DATA_RING];		struct bwi_ring_data *rd = &sc->sc_tx_rdata[BWI_TX_DATA_RING];
struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[BWI_TX_DATA_RING];		struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[BWI_TX_DATA_RING];
Show All 19 Lines	#endif
wh = mtod(m, struct ieee80211_frame *);		wh = mtod(m, struct ieee80211_frame *);
type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;		type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);		ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);

/* Get 802.11 frame len before prepending TX header */		/* Get 802.11 frame len before prepending TX header */
pkt_len = m->m_pkthdr.len + IEEE80211_CRC_LEN;		pkt_len = m->m_pkthdr.len + IEEE80211_CRC_LEN;

/*		/*
		* Assign sequence number - must be done in lock-step with
		* cipher encap.
		*/
		ieee80211_output_seqno_assign(ni, -1, m);

		/*
* Find TX rate		* Find TX rate
*/		*/
if (type != IEEE80211_FC0_TYPE_DATA \|\| (m->m_flags & M_EAPOL)) {		if (type != IEEE80211_FC0_TYPE_DATA \|\| (m->m_flags & M_EAPOL)) {
rate = rate_fb = tp->mgmtrate;		rate = rate_fb = tp->mgmtrate;
} else if (ismcast) {		} else if (ismcast) {
rate = rate_fb = tp->mcastrate;		rate = rate_fb = tp->mcastrate;
} else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {		} else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
rate = rate_fb = tp->ucastrate;		rate = rate_fb = tp->ucastrate;
▲ Show 20 Lines • Show All 162 Lines • ▼ Show 20 Lines	KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC,
("current regwin type %d", sc->sc_cur_regwin->rw_type));		("current regwin type %d", sc->sc_cur_regwin->rw_type));
mac = (struct bwi_mac *)sc->sc_cur_regwin;		mac = (struct bwi_mac *)sc->sc_cur_regwin;

wh = mtod(m, struct ieee80211_frame *);		wh = mtod(m, struct ieee80211_frame *);
ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);		ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);

/* Get 802.11 frame len before prepending TX header */		/* Get 802.11 frame len before prepending TX header */
pkt_len = m->m_pkthdr.len + IEEE80211_CRC_LEN;		pkt_len = m->m_pkthdr.len + IEEE80211_CRC_LEN;

		/* Assign sequence number. */
		ieee80211_output_seqno_assign(ni, -1, m);

/*		/*
* Find TX rate		* Find TX rate
*/		*/
rate = params->ibp_rate0;		rate = params->ibp_rate0;
if (!ieee80211_isratevalid(ic->ic_rt, rate)) {		if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
/* XXX fall back to mcast/mgmt rate? */		/* XXX fall back to mcast/mgmt rate? */
m_freem(m);		m_freem(m);
▲ Show 20 Lines • Show All 872 Lines • Show Last 20 Lines