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Differential D14731 Diff 40430 sys/net80211/ieee80211_superg.c

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sys/net80211/ieee80211_superg.c

Show First 20 Lines • Show All 719 Lines • ▼ Show 20 Linesstageq_remove(struct ieee80211com *ic, struct ieee80211_stageq *sq, struct mbuf *mstaged)
} }
printf("%s: packet not found\n", __func__); printf("%s: packet not found\n", __func__);
} }
static uint32_t static uint32_t
ff_approx_txtime(struct ieee80211_node *ni, ff_approx_txtime(struct ieee80211_node *ni,
const struct mbuf *m1, const struct mbuf *m2) const struct mbuf *m1, const struct mbuf *m2)
{ {
struct ieee80211com *ic = ni->ni_ic; const struct ieee80211_channel *chan = ni->ni_chan;
struct ieee80211vap *vap = ni->ni_vap; struct ieee80211vap *vap = ni->ni_vap;
uint32_t framelen; uint32_t framelen;
uint32_t frame_time; uint32_t frame_time;
int has_shortgi;
/* /*
* Approximate the frame length to be transmitted. A swag to add * Approximate the frame length to be transmitted. A swag to add
* the following maximal values to the skb payload: * the following maximal values to the skb payload:
* - 32: 802.11 encap + CRC * - 32: 802.11 encap + CRC
* - 24: encryption overhead (if wep bit) * - 24: encryption overhead (if wep bit)
* - 4 + 6: fast-frame header and padding * - 4 + 6: fast-frame header and padding
* - 16: 2 LLC FF tunnel headers * - 16: 2 LLC FF tunnel headers
* - 14: 1 802.3 FF tunnel header (mbuf already accounts for 2nd) * - 14: 1 802.3 FF tunnel header (mbuf already accounts for 2nd)
*/ */
framelen = m1->m_pkthdr.len + 32 + framelen = m1->m_pkthdr.len + 32 +
ATH_FF_MAX_HDR_PAD + ATH_FF_MAX_SEP_PAD + ATH_FF_MAX_HDR; ATH_FF_MAX_HDR_PAD + ATH_FF_MAX_SEP_PAD + ATH_FF_MAX_HDR;
if (vap->iv_flags & IEEE80211_F_PRIVACY) if (vap->iv_flags & IEEE80211_F_PRIVACY)
framelen += 24; framelen += 24;
if (m2 != NULL) if (m2 != NULL)
framelen += m2->m_pkthdr.len; framelen += m2->m_pkthdr.len;
/* has_shortgi = 0;
* For now, we assume non-shortgi, 20MHz, just because I want to if (chan != NULL && chan != IEEE80211_CHAN_ANYC &&
* at least test 802.11n. ((IEEE80211_IS_CHAN_HT40(chan) &&
*/ (ni->ni_flags & IEEE80211_NODE_SGI40) != 0)) ||
if (ni->ni_txrate & IEEE80211_RATE_MCS) ((IEEE80211_IS_CHAN_HT20(chan) &&
frame_time = ieee80211_compute_duration_ht(framelen, (ni->ni_flags & IEEE80211_NODE_SGI20) != 0)))
ni->ni_txrate, has_shortgi = 1;
IEEE80211_HT_RC_2_STREAMS(ni->ni_txrate),
0, /* isht40 */ frame_time = ieee80211_compute_duration(ni->ni_txrate, framelen,
0); /* isshortgi */ IEEE80211_GET_CHAN_FLAGS(ni->ni_chan), has_shortgi);
else
frame_time = ieee80211_compute_duration(ic->ic_rt, framelen,
ni->ni_txrate, 0);
return (frame_time); return (frame_time);
} }
/* /*
* Check if the supplied frame can be partnered with an existing * Check if the supplied frame can be partnered with an existing
* or pending frame. Return a reference to any frame that should be * or pending frame. Return a reference to any frame that should be
* sent on return; otherwise return NULL. * sent on return; otherwise return NULL.
*/ */
▲ Show 20 Lines • Show All 207 Lines • ▼ Show 20 Lines
* channel, update 802.11 state, and then call back into * channel, update 802.11 state, and then call back into
* the driver to effect the change. * the driver to effect the change.
*/ */
void void
ieee80211_dturbo_switch(struct ieee80211vap *vap, int newflags) ieee80211_dturbo_switch(struct ieee80211vap *vap, int newflags)
{ {
struct ieee80211com *ic = vap->iv_ic; struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_channel *chan; struct ieee80211_channel *chan;
enum ieee80211_phymode mode;
chan = ieee80211_find_channel(ic, ic->ic_bsschan->ic_freq, newflags); chan = ieee80211_find_channel(ic, ic->ic_bsschan->ic_freq, newflags);
if (chan == NULL) { /* XXX should not happen */ if (chan == NULL) { /* XXX should not happen */
IEEE80211_DPRINTF(vap, IEEE80211_MSG_SUPERG, IEEE80211_DPRINTF(vap, IEEE80211_MSG_SUPERG,
"%s: no channel with freq %u flags 0x%x\n", "%s: no channel with freq %u flags 0x%x\n",
__func__, ic->ic_bsschan->ic_freq, newflags); __func__, ic->ic_bsschan->ic_freq, newflags);
return; return;
} }
mode = ieee80211_chan2mode(chan);
IEEE80211_DPRINTF(vap, IEEE80211_MSG_SUPERG, IEEE80211_DPRINTF(vap, IEEE80211_MSG_SUPERG,
"%s: %s -> %s (freq %u flags 0x%x)\n", __func__, "%s: %s -> %s (freq %u flags 0x%x)\n", __func__,
ieee80211_phymode_name[ieee80211_chan2mode(ic->ic_bsschan)], ieee80211_phymode_name[ieee80211_chan2mode(ic->ic_bsschan)],
ieee80211_phymode_name[ieee80211_chan2mode(chan)], ieee80211_phymode_name[mode],
chan->ic_freq, chan->ic_flags); chan->ic_freq, chan->ic_flags);
ic->ic_bsschan = chan; ic->ic_bsschan = chan;
ic->ic_prevchan = ic->ic_curchan; ic->ic_prevchan = ic->ic_curchan;
ic->ic_curchan = chan; ic->ic_curchan = chan;
ic->ic_rt = ieee80211_get_ratetable(chan); ic->ic_rt = ieee80211_get_ratetable(mode);
ic->ic_set_channel(ic); ic->ic_set_channel(ic);
ieee80211_radiotap_chan_change(ic); ieee80211_radiotap_chan_change(ic);
/* NB: do not need to reset ERP state 'cuz we're in sta mode */ /* NB: do not need to reset ERP state 'cuz we're in sta mode */
} }
/* /*
* Return the current ``state'' of an Atheros capbility. * Return the current ``state'' of an Atheros capbility.
* If associated in station mode report the negotiated * If associated in station mode report the negotiated
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