if_ath.c (1b1a8e411e9723b152dfcc516eab368952870882) if_ath.c (9cccabebd778a60157b313f05f2029c900b971d4)
1/*-
2 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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971 bf->bf_node = NULL;
972 }
973 /*
974 * NB: the beacon data buffer must be 32-bit aligned;
975 * we assume the mbuf routines will return us something
976 * with this alignment (perhaps should assert).
977 */
978 rs = &ni->ni_rates;
1/*-
2 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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971 bf->bf_node = NULL;
972 }
973 /*
974 * NB: the beacon data buffer must be 32-bit aligned;
975 * we assume the mbuf routines will return us something
976 * with this alignment (perhaps should assert).
977 */
978 rs = &ni->ni_rates;
979 pktlen = 8 + 2 + 2+ 2+ni->ni_esslen + 2+rs->rs_nrates + 6;
979 pktlen = sizeof (struct ieee80211_frame)
980 + 8 + 2 + 2 + 2+ni->ni_esslen + 2+rs->rs_nrates + 6;
980 if (rs->rs_nrates > IEEE80211_RATE_SIZE)
981 pktlen += 2;
982 if (pktlen <= MHLEN)
983 MGETHDR(m, M_DONTWAIT, MT_DATA);
984 else
985 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
986 if (m == NULL) {
987 DPRINTF(("ath_beacon_alloc: cannot get mbuf/cluster; size %u\n",

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1042 *frm++ = 4; /* length */
1043 *frm++ = 0; /* DTIM count */
1044 *frm++ = 1; /* DTIM period */
1045 *frm++ = 0; /* bitmap control */
1046 *frm++ = 0; /* Partial Virtual Bitmap (variable length) */
1047 }
1048 frm = ieee80211_add_xrates(frm, rs);
1049 m->m_pkthdr.len = m->m_len = frm - mtod(m, u_int8_t *);
981 if (rs->rs_nrates > IEEE80211_RATE_SIZE)
982 pktlen += 2;
983 if (pktlen <= MHLEN)
984 MGETHDR(m, M_DONTWAIT, MT_DATA);
985 else
986 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
987 if (m == NULL) {
988 DPRINTF(("ath_beacon_alloc: cannot get mbuf/cluster; size %u\n",

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1043 *frm++ = 4; /* length */
1044 *frm++ = 0; /* DTIM count */
1045 *frm++ = 1; /* DTIM period */
1046 *frm++ = 0; /* bitmap control */
1047 *frm++ = 0; /* Partial Virtual Bitmap (variable length) */
1048 }
1049 frm = ieee80211_add_xrates(frm, rs);
1050 m->m_pkthdr.len = m->m_len = frm - mtod(m, u_int8_t *);
1051 KASSERT(m->m_pkthdr.len <= pktlen,
1052 ("beacon bigger than expected, len %u calculated %u",
1053 m->m_pkthdr.len, pktlen));
1050
1051 DPRINTF2(("ath_beacon_alloc: m %p len %u\n", m, m->m_len));
1052 error = bus_dmamap_load_mbuf(sc->sc_dmat, bf->bf_dmamap, m,
1053 ath_mbuf_load_cb, bf,
1054 BUS_DMA_NOWAIT);
1055 if (error != 0) {
1056 m_freem(m);
1057 return error;
1058 }
1059 KASSERT(bf->bf_nseg == 1,
1060 ("ath_beacon_alloc: multi-segment packet; nseg %u",
1061 bf->bf_nseg));
1062 bf->bf_m = m;
1063
1064 /* setup descriptors */
1065 ds = bf->bf_desc;
1066
1067 ds->ds_link = 0;
1068 ds->ds_data = bf->bf_segs[0].ds_addr;
1054
1055 DPRINTF2(("ath_beacon_alloc: m %p len %u\n", m, m->m_len));
1056 error = bus_dmamap_load_mbuf(sc->sc_dmat, bf->bf_dmamap, m,
1057 ath_mbuf_load_cb, bf,
1058 BUS_DMA_NOWAIT);
1059 if (error != 0) {
1060 m_freem(m);
1061 return error;
1062 }
1063 KASSERT(bf->bf_nseg == 1,
1064 ("ath_beacon_alloc: multi-segment packet; nseg %u",
1065 bf->bf_nseg));
1066 bf->bf_m = m;
1067
1068 /* setup descriptors */
1069 ds = bf->bf_desc;
1070
1071 ds->ds_link = 0;
1072 ds->ds_data = bf->bf_segs[0].ds_addr;
1069 /* XXX verify mbuf data area covers this roundup */
1070 /*
1071 * Calculate rate code.
1072 * XXX everything at min xmit rate
1073 */
1074 rt = sc->sc_currates;
1075 KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
1076 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1077 rate = rt->info[0].rateCode | rt->info[0].shortPreamble;

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1085 , rate, 1 /* series 0 rate/tries */
1086 , HAL_TXKEYIX_INVALID /* no encryption */
1087 , 0 /* antenna mode */
1088 , HAL_TXDESC_NOACK /* no ack for beacons */
1089 , 0 /* rts/cts rate */
1090 , 0 /* rts/cts duration */
1091 );
1092 /* NB: beacon's BufLen must be a multiple of 4 bytes */
1073 /*
1074 * Calculate rate code.
1075 * XXX everything at min xmit rate
1076 */
1077 rt = sc->sc_currates;
1078 KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
1079 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1080 rate = rt->info[0].rateCode | rt->info[0].shortPreamble;

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1088 , rate, 1 /* series 0 rate/tries */
1089 , HAL_TXKEYIX_INVALID /* no encryption */
1090 , 0 /* antenna mode */
1091 , HAL_TXDESC_NOACK /* no ack for beacons */
1092 , 0 /* rts/cts rate */
1093 , 0 /* rts/cts duration */
1094 );
1095 /* NB: beacon's BufLen must be a multiple of 4 bytes */
1096 /* XXX verify mbuf data area covers this roundup */
1093 ath_hal_filltxdesc(ah, ds
1094 , roundup(bf->bf_segs[0].ds_len, 4) /* buffer length */
1095 , AH_TRUE /* first segment */
1096 , AH_TRUE /* last segment */
1097 );
1098
1099 return 0;
1100}

--- 1467 unchanged lines hidden --- 		1097 ath_hal_filltxdesc(ah, ds
1098 , roundup(bf->bf_segs[0].ds_len, 4) /* buffer length */
1099 , AH_TRUE /* first segment */
1100 , AH_TRUE /* last segment */
1101 );
1102
1103 return 0;
1104}

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