if_bwi.c (6cec9cad762b6476313fb1f8e931a1647822db6b) if_bwi.c (c8dfaf382fa6df9dc6fd1e1c3356e0c8bf607e6a)
1/*
2 * Copyright (c) 2007 The DragonFly Project. All rights reserved.
3 *
4 * This code is derived from software contributed to The DragonFly Project
5 * by Sepherosa Ziehau <sepherosa@gmail.com>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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1396
1397 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1398 wh = mtod(m, struct ieee80211_frame *);
1399 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1400 k = ieee80211_crypto_encap(ni, m);
1401 if (k == NULL) {
1402 ieee80211_free_node(ni);
1403 m_freem(m);
1/*
2 * Copyright (c) 2007 The DragonFly Project. All rights reserved.
3 *
4 * This code is derived from software contributed to The DragonFly Project
5 * by Sepherosa Ziehau <sepherosa@gmail.com>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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1396
1397 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1398 wh = mtod(m, struct ieee80211_frame *);
1399 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1400 k = ieee80211_crypto_encap(ni, m);
1401 if (k == NULL) {
1402 ieee80211_free_node(ni);
1403 m_freem(m);
1404 ifp->if_oerrors++;
1404 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1405 continue;
1406 }
1407 }
1408 wh = NULL; /* Catch any invalid use */
1409
1410 if (bwi_encap(sc, idx, m, ni) != 0) {
1411 /* 'm' is freed in bwi_encap() if we reach here */
1412 if (ni != NULL)
1413 ieee80211_free_node(ni);
1405 continue;
1406 }
1407 }
1408 wh = NULL; /* Catch any invalid use */
1409
1410 if (bwi_encap(sc, idx, m, ni) != 0) {
1411 /* 'm' is freed in bwi_encap() if we reach here */
1412 if (ni != NULL)
1413 ieee80211_free_node(ni);
1414 ifp->if_oerrors++;
1414 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1415 continue;
1416 }
1417
1418 trans = 1;
1419 tbd->tbd_used++;
1420 idx = (idx + 1) % BWI_TX_NDESC;
1421
1415 continue;
1416 }
1417
1418 trans = 1;
1419 tbd->tbd_used++;
1420 idx = (idx + 1) % BWI_TX_NDESC;
1421
1422 ifp->if_opackets++;
1422 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
1423
1424 if (tbd->tbd_used + BWI_TX_NSPRDESC >= BWI_TX_NDESC) {
1425 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1426 break;
1427 }
1428 }
1429 tbd->tbd_idx = idx;
1430

--- 30 unchanged lines hidden (view full) ---

1461 } else {
1462 /*
1463 * Caller supplied explicit parameters to use in
1464 * sending the frame.
1465 */
1466 error = bwi_encap_raw(sc, idx, m, ni, params);
1467 }
1468 if (error == 0) {
1423
1424 if (tbd->tbd_used + BWI_TX_NSPRDESC >= BWI_TX_NDESC) {
1425 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1426 break;
1427 }
1428 }
1429 tbd->tbd_idx = idx;
1430

--- 30 unchanged lines hidden (view full) ---

1461 } else {
1462 /*
1463 * Caller supplied explicit parameters to use in
1464 * sending the frame.
1465 */
1466 error = bwi_encap_raw(sc, idx, m, ni, params);
1467 }
1468 if (error == 0) {
1469 ifp->if_opackets++;
1469 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
1470 if (++tbd->tbd_used + BWI_TX_NSPRDESC >= BWI_TX_NDESC)
1471 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1472 tbd->tbd_idx = (idx + 1) % BWI_TX_NDESC;
1473 sc->sc_tx_timer = 5;
1474 } else {
1475 /* NB: m is reclaimed on encap failure */
1476 ieee80211_free_node(ni);
1470 if (++tbd->tbd_used + BWI_TX_NSPRDESC >= BWI_TX_NDESC)
1471 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1472 tbd->tbd_idx = (idx + 1) % BWI_TX_NDESC;
1473 sc->sc_tx_timer = 5;
1474 } else {
1475 /* NB: m is reclaimed on encap failure */
1476 ieee80211_free_node(ni);
1477 ifp->if_oerrors++;
1477 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1478 }
1479 BWI_UNLOCK(sc);
1480 return error;
1481}
1482
1483static void
1484bwi_watchdog(void *arg)
1485{
1486 struct bwi_softc *sc;
1487 struct ifnet *ifp;
1488
1489 sc = arg;
1490 ifp = sc->sc_ifp;
1491 BWI_ASSERT_LOCKED(sc);
1492 if (sc->sc_tx_timer != 0 && --sc->sc_tx_timer == 0) {
1493 if_printf(ifp, "watchdog timeout\n");
1478 }
1479 BWI_UNLOCK(sc);
1480 return error;
1481}
1482
1483static void
1484bwi_watchdog(void *arg)
1485{
1486 struct bwi_softc *sc;
1487 struct ifnet *ifp;
1488
1489 sc = arg;
1490 ifp = sc->sc_ifp;
1491 BWI_ASSERT_LOCKED(sc);
1492 if (sc->sc_tx_timer != 0 && --sc->sc_tx_timer == 0) {
1493 if_printf(ifp, "watchdog timeout\n");
1494 ifp->if_oerrors++;
1494 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1495 taskqueue_enqueue(sc->sc_tq, &sc->sc_restart_task);
1496 }
1497 callout_reset(&sc->sc_watchdog_timer, hz, bwi_watchdog, sc);
1498}
1499
1500static void
1501bwi_stop(struct bwi_softc *sc, int statechg)
1502{

--- 1131 unchanged lines hidden (view full) ---

2634 uint16_t flags2;
2635 int buflen, wh_ofs, hdr_extra, rssi, noise, type, rate;
2636
2637 m = rb->rb_mbuf;
2638 bus_dmamap_sync(sc->sc_buf_dtag, rb->rb_dmap,
2639 BUS_DMASYNC_POSTREAD);
2640
2641 if (bwi_newbuf(sc, idx, 0)) {
1495 taskqueue_enqueue(sc->sc_tq, &sc->sc_restart_task);
1496 }
1497 callout_reset(&sc->sc_watchdog_timer, hz, bwi_watchdog, sc);
1498}
1499
1500static void
1501bwi_stop(struct bwi_softc *sc, int statechg)
1502{

--- 1131 unchanged lines hidden (view full) ---

2634 uint16_t flags2;
2635 int buflen, wh_ofs, hdr_extra, rssi, noise, type, rate;
2636
2637 m = rb->rb_mbuf;
2638 bus_dmamap_sync(sc->sc_buf_dtag, rb->rb_dmap,
2639 BUS_DMASYNC_POSTREAD);
2640
2641 if (bwi_newbuf(sc, idx, 0)) {
2642 ifp->if_ierrors++;
2642 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
2643 goto next;
2644 }
2645
2646 hdr = mtod(m, struct bwi_rxbuf_hdr *);
2647 flags2 = le16toh(hdr->rxh_flags2);
2648
2649 hdr_extra = 0;
2650 if (flags2 & BWI_RXH_F2_TYPE2FRAME)
2651 hdr_extra = 2;
2652 wh_ofs = hdr_extra + 6; /* XXX magic number */
2653
2654 buflen = le16toh(hdr->rxh_buflen);
2655 if (buflen < BWI_FRAME_MIN_LEN(wh_ofs)) {
2656 if_printf(ifp, "%s: zero length data, hdr_extra %d\n",
2657 __func__, hdr_extra);
2643 goto next;
2644 }
2645
2646 hdr = mtod(m, struct bwi_rxbuf_hdr *);
2647 flags2 = le16toh(hdr->rxh_flags2);
2648
2649 hdr_extra = 0;
2650 if (flags2 & BWI_RXH_F2_TYPE2FRAME)
2651 hdr_extra = 2;
2652 wh_ofs = hdr_extra + 6; /* XXX magic number */
2653
2654 buflen = le16toh(hdr->rxh_buflen);
2655 if (buflen < BWI_FRAME_MIN_LEN(wh_ofs)) {
2656 if_printf(ifp, "%s: zero length data, hdr_extra %d\n",
2657 __func__, hdr_extra);
2658 ifp->if_ierrors++;
2658 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
2659 m_freem(m);
2660 goto next;
2661 }
2662
2663 bcopy((uint8_t *)(hdr + 1) + hdr_extra, &plcp, sizeof(plcp));
2664 rssi = bwi_calc_rssi(sc, hdr);
2665 noise = bwi_calc_noise(sc);
2666

--- 1391 unchanged lines hidden --- 		2659 m_freem(m);
2660 goto next;
2661 }
2662
2663 bcopy((uint8_t *)(hdr + 1) + hdr_extra, &plcp, sizeof(plcp));
2664 rssi = bwi_calc_rssi(sc, hdr);
2665 noise = bwi_calc_noise(sc);
2666

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