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whitespace commit: fix indentation in fxp_intr_body.

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This is also done in preparation of a subsequent fix
for the handling of RNR conditions in polling mode.
This commit is contained in:
Luigi Rizzo 2002-07-29 02:48:09 +00:00
parent 55328d51ba
commit e823d3404b
1 changed files with 97 additions and 97 deletions
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194
sys/dev/fxp/if_fxp.c
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@ -1227,117 +1227,117 @@ fxp_intr_body(struct fxp_softc *sc, u_int8_t statack, int count)
{
struct ifnet *ifp = &sc->sc_if;
/*
* Free any finished transmit mbuf chains.
*
* Handle the CNA event likt a CXTNO event. It used to
* be that this event (control unit not ready) was not
* encountered, but it is now with the SMPng modifications.
* The exact sequence of events that occur when the interface
* is brought up are different now, and if this event
* goes unhandled, the configuration/rxfilter setup sequence
* can stall for several seconds. The result is that no
* packets go out onto the wire for about 5 to 10 seconds
* after the interface is ifconfig'ed for the first time.
*/
if (statack & (FXP_SCB_STATACK_CXTNO | FXP_SCB_STATACK_CNA)) {
struct fxp_cb_tx *txp;
/*
* Free any finished transmit mbuf chains.
*
* Handle the CNA event likt a CXTNO event. It used to
* be that this event (control unit not ready) was not
* encountered, but it is now with the SMPng modifications.
* The exact sequence of events that occur when the interface
* is brought up are different now, and if this event
* goes unhandled, the configuration/rxfilter setup sequence
* can stall for several seconds. The result is that no
* packets go out onto the wire for about 5 to 10 seconds
* after the interface is ifconfig'ed for the first time.
*/
if (statack & (FXP_SCB_STATACK_CXTNO | FXP_SCB_STATACK_CNA)) {
struct fxp_cb_tx *txp;
for (txp = sc->cbl_first; sc->tx_queued &&
(txp->cb_status & FXP_CB_STATUS_C) != 0;
txp = txp->next) {
if (txp->mb_head != NULL) {
m_freem(txp->mb_head);
txp->mb_head = NULL;
}
sc->tx_queued--;
for (txp = sc->cbl_first; sc->tx_queued &&
(txp->cb_status & FXP_CB_STATUS_C) != 0;
txp = txp->next) {
if (txp->mb_head != NULL) {
m_freem(txp->mb_head);
txp->mb_head = NULL;
}
sc->cbl_first = txp;
if (sc->tx_queued == 0) {
ifp->if_timer = 0;
if (sc->need_mcsetup)
fxp_mc_setup(sc);
} else
ifp->if_timer = 5;
/*
* Try to start more packets transmitting.
*/
if (ifp->if_snd.ifq_head != NULL)
fxp_start(ifp);
sc->tx_queued--;
}
sc->cbl_first = txp;
if (sc->tx_queued == 0) {
ifp->if_timer = 0;
if (sc->need_mcsetup)
fxp_mc_setup(sc);
} else
ifp->if_timer = 5;
/*
* Process receiver interrupts. If a no-resource (RNR)
* condition exists, get whatever packets we can and
* re-start the receiver.
* Try to start more packets transmitting.
*/
if (statack & (FXP_SCB_STATACK_FR | FXP_SCB_STATACK_RNR)) {
struct mbuf *m;
struct fxp_rfa *rfa;
if (ifp->if_snd.ifq_head != NULL)
fxp_start(ifp);
}
/*
* Process receiver interrupts. If a no-resource (RNR)
* condition exists, get whatever packets we can and
* re-start the receiver.
*/
if (statack & (FXP_SCB_STATACK_FR | FXP_SCB_STATACK_RNR)) {
struct mbuf *m;
struct fxp_rfa *rfa;
rcvloop:
m = sc->rfa_headm;
rfa = (struct fxp_rfa *)(m->m_ext.ext_buf +
RFA_ALIGNMENT_FUDGE);
m = sc->rfa_headm;
rfa = (struct fxp_rfa *)(m->m_ext.ext_buf +
RFA_ALIGNMENT_FUDGE);
#ifdef DEVICE_POLLING /* loop at most count times if count >=0 */
if (count < 0 || count-- > 0)
if (count < 0 || count-- > 0)
#endif
if (rfa->rfa_status & FXP_RFA_STATUS_C) {
/*
* Remove first packet from the chain.
*/
sc->rfa_headm = m->m_next;
m->m_next = NULL;
if (rfa->rfa_status & FXP_RFA_STATUS_C) {
/*
* Remove first packet from the chain.
*/
sc->rfa_headm = m->m_next;
m->m_next = NULL;
/*
* Add a new buffer to the receive chain.
* If this fails, the old buffer is recycled
* instead.
*/
if (fxp_add_rfabuf(sc, m) == 0) {
struct ether_header *eh;
int total_len;
/*
* Add a new buffer to the receive chain.
* If this fails, the old buffer is recycled
* instead.
*/
if (fxp_add_rfabuf(sc, m) == 0) {
struct ether_header *eh;
int total_len;
total_len = rfa->actual_size &
(MCLBYTES - 1);
if (total_len <
sizeof(struct ether_header)) {
m_freem(m);
goto rcvloop;
}
/*
* Drop the packet if it has CRC
* errors. This test is only needed
* when doing 802.1q VLAN on the 82557
* chip.
*/
if (rfa->rfa_status &
FXP_RFA_STATUS_CRC) {
m_freem(m);
goto rcvloop;
}
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = m->m_len = total_len;
eh = mtod(m, struct ether_header *);
m->m_data +=
sizeof(struct ether_header);
m->m_len -=
sizeof(struct ether_header);
m->m_pkthdr.len = m->m_len;
ether_input(ifp, eh, m);
total_len = rfa->actual_size &
(MCLBYTES - 1);
if (total_len <
sizeof(struct ether_header)) {
m_freem(m);
goto rcvloop;
}
goto rcvloop;
}
if (statack & FXP_SCB_STATACK_RNR) {
fxp_scb_wait(sc);
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL,
vtophys(sc->rfa_headm->m_ext.ext_buf) +
RFA_ALIGNMENT_FUDGE);
fxp_scb_cmd(sc, FXP_SCB_COMMAND_RU_START);
/*
* Drop the packet if it has CRC
* errors. This test is only needed
* when doing 802.1q VLAN on the 82557
* chip.
*/
if (rfa->rfa_status &
FXP_RFA_STATUS_CRC) {
m_freem(m);
goto rcvloop;
}
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = m->m_len = total_len;
eh = mtod(m, struct ether_header *);
m->m_data +=
sizeof(struct ether_header);
m->m_len -=
sizeof(struct ether_header);
m->m_pkthdr.len = m->m_len;
ether_input(ifp, eh, m);
}
goto rcvloop;
}
if (statack & FXP_SCB_STATACK_RNR) {
fxp_scb_wait(sc);
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL,
vtophys(sc->rfa_headm->m_ext.ext_buf) +
RFA_ALIGNMENT_FUDGE);
fxp_scb_cmd(sc, FXP_SCB_COMMAND_RU_START);
}
}
}
/*