diff options
Diffstat (limited to 'sys/dev/lnc/if_lnc.c')
| -rw-r--r-- | sys/dev/lnc/if_lnc.c | 82 |
1 files changed, 41 insertions, 41 deletions
diff --git a/sys/dev/lnc/if_lnc.c b/sys/dev/lnc/if_lnc.c index 8477f58..1366236 100644 --- a/sys/dev/lnc/if_lnc.c +++ b/sys/dev/lnc/if_lnc.c @@ -6,8 +6,8 @@ * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer, - * verbatim and that no modifications are made prior to this + * notice, this list of conditions and the following disclaimer, + * verbatim and that no modifications are made prior to this * point in the file. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the @@ -35,28 +35,28 @@ /* #define DIAGNOSTIC #define DEBUG - * + * * TODO ---- * * This driver will need bounce buffer support when dma'ing to mbufs above the * 16Mb mark. - * + * * Check all the XXX comments -- some of them are just things I've left * unfinished rather than "difficult" problems that were hacked around. - * + * * Check log settings. - * + * * Check how all the arpcom flags get set and used. - * + * * Re-inline and re-static all routines after debugging. - * + * * Remember to assign iobase in SHMEM probe routines. - * + * * Replace all occurences of LANCE-controller-card etc in prints by the name * strings of the appropriate type -- nifty window dressing - * - * Add DEPCA support -- mostly done. - * + * + * Add DEPCA support -- mostly done. + * */ #include "lnc.h" @@ -175,7 +175,7 @@ lnc_registerdev(struct isa_device *isa_dev) struct kern_devconf *kdc = &sc->kdc; *kdc = kdc_lnc; kdc->kdc_unit = isa_dev->id_unit; - kdc->kdc_parentdata = isa_dev; + kdc->kdc_parentdata = isa_dev; switch(sc->nic.ic) { case LANCE: @@ -209,7 +209,7 @@ lnc_registerdev(struct isa_device *isa_dev) default: break; } - + dev_attach(kdc); } @@ -270,7 +270,7 @@ alloc_mbuf_cluster(struct lnc_softc *sc, struct host_ring_entry *desc) /* XXX m->m_data = m->m_ext.ext_buf;*/ } else { MGET(m, M_DONTWAIT, MT_DATA); - if (!m) + if (!m) return(1); MCLGET(m, M_DONTWAIT); if (!m->m_ext.ext_buf) { @@ -320,7 +320,7 @@ chain_mbufs(struct lnc_softc *sc, int start_of_packet, int pkt_len) m->m_next = 0; return(head); -} +} inline struct mbuf * mbuf_packet(struct lnc_softc *sc, int start_of_packet, int pkt_len) @@ -415,7 +415,7 @@ lnc_rint(int unit) * Therefore, it can be assumed that a complete packet can be found * before hitting buffers that are still owned by the LANCE, if not * then there is a bug in the driver that is causing the descriptors - * to get out of sync. + * to get out of sync. */ #ifdef DIAGNOSTIC @@ -443,8 +443,8 @@ lnc_rint(int unit) * jabber packets can overrun into a second descriptor. * If there is no error, then the ENP flag is set in the last * descriptor of the packet. If there is an error then the ERR - * flag will be set in the descriptor where the error occured. - * Therefore, to find the last buffer of a packet we search for + * flag will be set in the descriptor where the error occured. + * Therefore, to find the last buffer of a packet we search for * either ERR or ENP. */ @@ -533,7 +533,7 @@ lnc_rint(int unit) if (head) { /* - * First mbuf in packet holds the + * First mbuf in packet holds the * ethernet and packet headers */ head->m_pkthdr.rcvif = &sc->arpcom.ac_if; @@ -627,7 +627,7 @@ lnc_tint(int unit) * status will be written into the descriptor that was being accessed * when the error occured and all subsequent descriptors in that * packet will have been relinquished by the LANCE. - * + * * At this point we know that sc->trans_next points to the start * of a packet that the LANCE has just finished trying to transmit. * We now search for a buffer with either ENP or ERR set. @@ -648,7 +648,7 @@ lnc_tint(int unit) #endif /* - * Find end of packet. + * Find end of packet. */ if (!(next->md->md1 & (ENP | MDERR))) { @@ -717,7 +717,7 @@ lnc_tint(int unit) * set then TBUFF will have been cleared above. A * UFLO error will turn off the transmitter so we * have to reset. - * + * */ if (next->md->md3 & UFLO) { @@ -759,7 +759,7 @@ lnc_tint(int unit) * ERR would have also been set and we would have * returned from lnc_tint above. Therefore we can * assume if we arrive here that ONE is valid. - * + * */ if (next->md->md1 & ONE) { @@ -810,7 +810,7 @@ lnc_tint(int unit) } while (sc->pending_transmits && !(next->md->md1 & OWN)); /* - * Clear TINT since we've dealt with all + * Clear TINT since we've dealt with all * the completed transmissions. */ @@ -887,7 +887,7 @@ int i; * There isn't any way to determine if a NIC is a BICC. Basically, if * the lance probe succeeds using the i/o addresses of the BICC then * we assume it's a BICC. - * + * */ sc->rap = isa_dev->id_iobase + BICC_RAP; @@ -1035,14 +1035,14 @@ lnc_attach(struct isa_device * isa_dev) /* * Allocate memory for use by the controller. - * + * * XXX -- the Am7990 and Am79C960 only have 24 address lines and so can * only access the lower 16Mb of physical memory. For the moment we * assume that malloc will allocate memory within the lower 16Mb * range. This is not a very valid assumption but there's nothing * that can be done about it yet. For shared memory NICs this isn't * relevant. - * + * */ lnc_mem_size = ((NDESC(sc->nrdre) + NDESC(sc->ntdre)) * @@ -1139,7 +1139,7 @@ lnc_init(int unit) * on a word boundary),the transmit and receive ring structures (each * entry is 4 words long and must start on a quadword boundary) and * the data buffers. - * + * * The alignment tests are particularly paranoid. */ @@ -1248,7 +1248,7 @@ lnc_init(int unit) * For the Am7990 it controls DMA operations, for the Am79C960 it * controls interrupt masks and transmitter algorithms. In either * case, none of the flags are set. - * + * */ write_csr(unit, CSR3, 0); @@ -1286,13 +1286,13 @@ lnc_init(int unit) * The interrupt flag (INTR) will be set and provided that the interrupt enable * flag (INEA) is also set, the interrupt pin will be driven low when any of * the following occur: - * + * * 1) Completion of the initialisation routine (IDON). 2) The reception of a * packet (RINT). 3) The transmission of a packet (TINT). 4) A transmitter * timeout error (BABL). 5) A missed packet (MISS). 6) A memory error (MERR). - * + * * The interrupt flag is cleared when all of the above conditions are cleared. - * + * * If the driver is reset from this routine then it first checks to see if any * interrupts have ocurred since the reset and handles them before returning. * This is because the NIC may signify a pending interrupt in CSR0 using the @@ -1300,7 +1300,7 @@ lnc_init(int unit) * think it does from reading the data sheets). We may as well deal with * these pending interrupts now rather than get the overhead of another * hardware interrupt immediately upon returning from the interrupt handler. - * + * */ void @@ -1440,7 +1440,7 @@ lnc_start(struct ifnet *ifp) no_entries_needed++; /* - * We try and avoid bcopy as much as possible + * We try and avoid bcopy as much as possible * but there are two cases when we use it. * * 1) If there are not enough free entries in the ring @@ -1452,7 +1452,7 @@ lnc_start(struct ifnet *ifp) * packet so it's necessary to shuffle the mbuf * contents to ensure this. */ - + if (no_entries_needed > (NDESC(sc->ntdre) - sc->pending_transmits)) if (!(head = chain_to_cluster(head))) { @@ -1465,9 +1465,9 @@ lnc_start(struct ifnet *ifp) len = 100 - head->m_len; if (M_TRAILINGSPACE(head) < len) { /* - * Move data to start of data - * area. We assume the first - * mbuf has a packet header + * Move data to start of data + * area. We assume the first + * mbuf has a packet header * and is not a cluster. */ bcopy((caddr_t)head->m_data, (caddr_t)head->m_pktdat, head->m_len); @@ -1564,7 +1564,7 @@ lnc_start(struct ifnet *ifp) } while (sc->pending_transmits < NDESC(sc->ntdre)); /* - * Transmit ring is full so set IFF_OACTIVE + * Transmit ring is full so set IFF_OACTIVE * since we can't buffer any more packets. */ @@ -1633,7 +1633,7 @@ lnc_ioctl(struct ifnet * ifp, int command, caddr_t data) */ lnc_init(ifp->if_unit); } - sc->kdc.kdc_state = + sc->kdc.kdc_state = ((ifp->if_flags & IFF_UP) ? DC_BUSY : DC_IDLE); break; #ifdef notyet |
