mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-16 10:20:30 +00:00
Reworked the stop/reset code to properly run-down allocated buffers and
made the code detect and handle wedged cards.
This commit is contained in:
David Greenman
parent
a30c935636
commit
3ba657329e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=13176
@ -29,7 +29,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: if_fxp.c,v 1.5 1995/12/07 12:47:35 davidg Exp $
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* $Id: if_fxp.c,v 1.6 1995/12/18 02:47:43 davidg Exp $
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*/
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/*
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@ -134,7 +134,7 @@ static u_char fxp_cb_config_template[] = {
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0x0, 0x0
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};
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static inline void fxp_scb_wait __P((struct fxp_csr *));
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static inline int fxp_scb_wait __P((struct fxp_csr *));
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static char *fxp_probe __P((pcici_t, pcidi_t));
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static void fxp_attach __P((pcici_t, int));
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static int fxp_shutdown __P((struct kern_devconf *, int));
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@ -191,13 +191,14 @@ DATA_SET(pcidevice_set, fxp_device);
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* Wait for the previous command to be accepted (but not necessarily
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* completed).
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*/
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static inline void
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static inline int
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fxp_scb_wait(csr)
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struct fxp_csr *csr;
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{
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int i = 10000;
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while ((csr->scb_command & FXP_SCB_COMMAND_MASK) && --i);
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return (i);
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}
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/*
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@ -399,14 +400,7 @@ fxp_shutdown(kdc, force)
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{
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struct fxp_softc *sc = fxp_sc[kdc->kdc_unit];
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/*
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* Cancel stats updater.
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*/
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untimeout(fxp_stats_update, sc);
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/*
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* Issue software reset.
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*/
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sc->csr->port = 0;
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fxp_stop(sc);
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(void) dev_detach(kdc);
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return 0;
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@ -518,10 +512,17 @@ fxp_start(ifp)
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sc->cbl_first = txp;
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}
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if (!fxp_scb_wait(csr)) {
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/*
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* Hmmm, card has gone out to lunch
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*/
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fxp_init(ifp);
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goto txloop;
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}
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/*
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* Resume transmission if suspended.
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*/
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fxp_scb_wait(csr);
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csr->scb_command = FXP_SCB_COMMAND_CU_RESUME;
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#if NBPFILTER > 0
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@ -646,8 +647,7 @@ fxp_intr(arg)
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if (statack & FXP_SCB_STATACK_RNR) {
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struct fxp_csr *csr = sc->csr;
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ifp->if_ierrors++;
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fxp_scb_wait(csr);
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(void) fxp_scb_wait(csr);
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csr->scb_general = vtophys(sc->rfa_headm->m_ext.ext_buf);
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csr->scb_command = FXP_SCB_COMMAND_RU_START;
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}
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@ -679,11 +679,15 @@ fxp_stats_update(arg)
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ifp->if_opackets += sp->tx_good;
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ifp->if_collisions += sp->tx_total_collisions;
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ifp->if_ipackets += sp->rx_good;
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ifp->if_ierrors +=
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sp->rx_crc_errors +
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sp->rx_alignment_errors +
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sp->rx_rnr_errors +
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sp->rx_overrun_errors +
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sp->rx_shortframes;
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/*
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* If there is a pending command, don't wait for it to
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* be accepted - we'll pick up the stats the next time
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* around. Make sure we don't count the stats twice
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* however.
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* If there is no pending command, start another stats
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* dump. Otherwise punt for now.
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*/
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if ((sc->csr->scb_command & FXP_SCB_COMMAND_MASK) == 0) {
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/*
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@ -692,16 +696,22 @@ fxp_stats_update(arg)
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* writing scb_command in other parts of the driver.
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*/
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sc->csr->scb_command = FXP_SCB_COMMAND_CU_DUMPRESET;
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fxp_scb_wait(sc->csr);
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(void) fxp_scb_wait(sc->csr);
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} else {
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/*
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* A previous command is still waiting to be accepted.
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* Just zero our copy of the stats and wait for the
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* next timer event to pdate them.
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* next timer event to update them.
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*/
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sp->tx_good = 0;
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sp->tx_total_collisions = 0;
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sp->rx_good = 0;
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sp->rx_crc_errors = 0;
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sp->rx_alignment_errors = 0;
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sp->rx_rnr_errors = 0;
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sp->rx_overrun_errors = 0;
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sp->rx_shortframes = 0;;
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}
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/*
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* Schedule another timeout one second from now.
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@ -718,15 +728,50 @@ fxp_stop(sc)
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struct fxp_softc *sc;
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{
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struct ifnet *ifp = &sc->arpcom.ac_if;
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struct fxp_cb_tx *txp;
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int i;
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/*
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* Cancel stats updater.
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*/
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untimeout(fxp_stats_update, sc);
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/*
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* Issue software reset
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*/
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sc->csr->port = 0;
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DELAY(10);
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ifp->if_flags &= ~IFF_RUNNING;
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/*
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* Release any xmit buffers.
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*/
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for (txp = sc->cbl_first; txp != NULL && txp->mb_head != NULL;
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txp = txp->next) {
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m_freem(txp->mb_head);
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txp->mb_head = NULL;
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}
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sc->tx_queued = 0;
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/*
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* Free all the receive buffers then reallocate/reinitialize
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*/
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if (sc->rfa_headm != NULL)
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m_freem(sc->rfa_headm);
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sc->rfa_headm = NULL;
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sc->rfa_tailm = NULL;
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for (i = 0; i < FXP_NRFABUFS; i++) {
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if (fxp_add_rfabuf(sc, NULL) != 0) {
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/*
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* This "can't happen" - we're at splimp()
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* and we just freed all the buffers we need
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* above.
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*/
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panic("fxp_stop: no buffers!");
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}
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}
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ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
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ifp->if_timer = 0;
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}
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/*
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@ -756,17 +801,11 @@ fxp_init(ifp)
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struct fxp_csr *csr = sc->csr;
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int i, s, mcast, prm;
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/*
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* Cancel stats updater.
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*/
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untimeout(fxp_stats_update, sc);
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s = splimp();
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/*
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* Issue software reset and wait 10us for the card to recover.
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* Cancel any pending I/O
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*/
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csr->port = 0;
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DELAY(10);
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fxp_stop(sc);
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prm = (ifp->if_flags & IFF_PROMISC) ? 1 : 0;
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sc->promisc_mode = prm;
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@ -784,13 +823,13 @@ fxp_init(ifp)
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csr->scb_general = 0;
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csr->scb_command = FXP_SCB_COMMAND_CU_BASE;
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fxp_scb_wait(csr);
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(void) fxp_scb_wait(csr);
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csr->scb_command = FXP_SCB_COMMAND_RU_BASE;
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/*
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* Initialize base of dump-stats buffer.
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*/
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fxp_scb_wait(csr);
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(void) fxp_scb_wait(csr);
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csr->scb_general = vtophys(sc->fxp_stats);
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csr->scb_command = FXP_SCB_COMMAND_CU_DUMP_ADR;
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@ -838,14 +877,14 @@ fxp_init(ifp)
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cbp->padding = 1; /* (do) pad short tx packets */
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cbp->rcv_crc_xfer = 0; /* (don't) xfer CRC to host */
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cbp->force_fdx = 0; /* (don't) force full duplex */
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cbp->fdx_pin_en = 0; /* (ignore) FDX# pin */
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cbp->fdx_pin_en = 1; /* (enable) FDX# pin */
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cbp->multi_ia = 0; /* (don't) accept multiple IAs */
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cbp->mc_all = mcast; /* accept all multicasts */
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/*
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* Start the config command/DMA.
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*/
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fxp_scb_wait(csr);
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(void) fxp_scb_wait(csr);
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csr->scb_general = vtophys(cbp);
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csr->scb_command = FXP_SCB_COMMAND_CU_START;
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/* ...and wait for it to complete. */
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@ -865,7 +904,7 @@ fxp_init(ifp)
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/*
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* Start the IAS (Individual Address Setup) command/DMA.
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*/
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fxp_scb_wait(csr);
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(void) fxp_scb_wait(csr);
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csr->scb_command = FXP_SCB_COMMAND_CU_START;
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/* ...and wait for it to complete. */
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while (!(cb_ias->cb_status & FXP_CB_STATUS_C));
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@ -891,13 +930,13 @@ fxp_init(ifp)
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sc->cbl_first = sc->cbl_last = txp;
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sc->tx_queued = 0;
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fxp_scb_wait(csr);
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(void) fxp_scb_wait(csr);
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csr->scb_command = FXP_SCB_COMMAND_CU_START;
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/*
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* Initialize receiver buffer area - RFA.
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*/
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fxp_scb_wait(csr);
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(void) fxp_scb_wait(csr);
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csr->scb_general = vtophys(sc->rfa_headm->m_ext.ext_buf);
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csr->scb_command = FXP_SCB_COMMAND_RU_START;
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111
sys/pci/if_fxp.c
111
sys/pci/if_fxp.c
@ -29,7 +29,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: if_fxp.c,v 1.5 1995/12/07 12:47:35 davidg Exp $
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* $Id: if_fxp.c,v 1.6 1995/12/18 02:47:43 davidg Exp $
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*/
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/*
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@ -134,7 +134,7 @@ static u_char fxp_cb_config_template[] = {
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0x0, 0x0
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};
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static inline void fxp_scb_wait __P((struct fxp_csr *));
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static inline int fxp_scb_wait __P((struct fxp_csr *));
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static char *fxp_probe __P((pcici_t, pcidi_t));
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static void fxp_attach __P((pcici_t, int));
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static int fxp_shutdown __P((struct kern_devconf *, int));
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@ -191,13 +191,14 @@ DATA_SET(pcidevice_set, fxp_device);
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* Wait for the previous command to be accepted (but not necessarily
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* completed).
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*/
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static inline void
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static inline int
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fxp_scb_wait(csr)
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struct fxp_csr *csr;
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{
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int i = 10000;
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while ((csr->scb_command & FXP_SCB_COMMAND_MASK) && --i);
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return (i);
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}
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/*
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@ -399,14 +400,7 @@ fxp_shutdown(kdc, force)
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{
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struct fxp_softc *sc = fxp_sc[kdc->kdc_unit];
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/*
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* Cancel stats updater.
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*/
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untimeout(fxp_stats_update, sc);
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/*
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* Issue software reset.
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*/
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sc->csr->port = 0;
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fxp_stop(sc);
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(void) dev_detach(kdc);
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return 0;
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@ -518,10 +512,17 @@ fxp_start(ifp)
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sc->cbl_first = txp;
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}
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if (!fxp_scb_wait(csr)) {
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/*
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* Hmmm, card has gone out to lunch
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*/
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fxp_init(ifp);
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goto txloop;
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}
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/*
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* Resume transmission if suspended.
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*/
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fxp_scb_wait(csr);
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csr->scb_command = FXP_SCB_COMMAND_CU_RESUME;
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#if NBPFILTER > 0
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@ -646,8 +647,7 @@ fxp_intr(arg)
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if (statack & FXP_SCB_STATACK_RNR) {
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struct fxp_csr *csr = sc->csr;
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ifp->if_ierrors++;
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fxp_scb_wait(csr);
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(void) fxp_scb_wait(csr);
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csr->scb_general = vtophys(sc->rfa_headm->m_ext.ext_buf);
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csr->scb_command = FXP_SCB_COMMAND_RU_START;
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}
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@ -679,11 +679,15 @@ fxp_stats_update(arg)
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ifp->if_opackets += sp->tx_good;
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ifp->if_collisions += sp->tx_total_collisions;
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ifp->if_ipackets += sp->rx_good;
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ifp->if_ierrors +=
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sp->rx_crc_errors +
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sp->rx_alignment_errors +
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sp->rx_rnr_errors +
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sp->rx_overrun_errors +
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sp->rx_shortframes;
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/*
|
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* If there is a pending command, don't wait for it to
|
||||
* be accepted - we'll pick up the stats the next time
|
||||
* around. Make sure we don't count the stats twice
|
||||
* however.
|
||||
* If there is no pending command, start another stats
|
||||
* dump. Otherwise punt for now.
|
||||
*/
|
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if ((sc->csr->scb_command & FXP_SCB_COMMAND_MASK) == 0) {
|
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/*
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@ -692,16 +696,22 @@ fxp_stats_update(arg)
|
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* writing scb_command in other parts of the driver.
|
||||
*/
|
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sc->csr->scb_command = FXP_SCB_COMMAND_CU_DUMPRESET;
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fxp_scb_wait(sc->csr);
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(void) fxp_scb_wait(sc->csr);
|
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} else {
|
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/*
|
||||
* A previous command is still waiting to be accepted.
|
||||
* Just zero our copy of the stats and wait for the
|
||||
* next timer event to pdate them.
|
||||
* next timer event to update them.
|
||||
*/
|
||||
sp->tx_good = 0;
|
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sp->tx_total_collisions = 0;
|
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|
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sp->rx_good = 0;
|
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sp->rx_crc_errors = 0;
|
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sp->rx_alignment_errors = 0;
|
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sp->rx_rnr_errors = 0;
|
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sp->rx_overrun_errors = 0;
|
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sp->rx_shortframes = 0;;
|
||||
}
|
||||
/*
|
||||
* Schedule another timeout one second from now.
|
||||
@ -718,15 +728,50 @@ fxp_stop(sc)
|
||||
struct fxp_softc *sc;
|
||||
{
|
||||
struct ifnet *ifp = &sc->arpcom.ac_if;
|
||||
struct fxp_cb_tx *txp;
|
||||
int i;
|
||||
|
||||
/*
|
||||
* Cancel stats updater.
|
||||
*/
|
||||
untimeout(fxp_stats_update, sc);
|
||||
|
||||
/*
|
||||
* Issue software reset
|
||||
*/
|
||||
sc->csr->port = 0;
|
||||
DELAY(10);
|
||||
|
||||
ifp->if_flags &= ~IFF_RUNNING;
|
||||
/*
|
||||
* Release any xmit buffers.
|
||||
*/
|
||||
for (txp = sc->cbl_first; txp != NULL && txp->mb_head != NULL;
|
||||
txp = txp->next) {
|
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m_freem(txp->mb_head);
|
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txp->mb_head = NULL;
|
||||
}
|
||||
sc->tx_queued = 0;
|
||||
|
||||
/*
|
||||
* Free all the receive buffers then reallocate/reinitialize
|
||||
*/
|
||||
if (sc->rfa_headm != NULL)
|
||||
m_freem(sc->rfa_headm);
|
||||
sc->rfa_headm = NULL;
|
||||
sc->rfa_tailm = NULL;
|
||||
for (i = 0; i < FXP_NRFABUFS; i++) {
|
||||
if (fxp_add_rfabuf(sc, NULL) != 0) {
|
||||
/*
|
||||
* This "can't happen" - we're at splimp()
|
||||
* and we just freed all the buffers we need
|
||||
* above.
|
||||
*/
|
||||
panic("fxp_stop: no buffers!");
|
||||
}
|
||||
}
|
||||
|
||||
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
|
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ifp->if_timer = 0;
|
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}
|
||||
|
||||
/*
|
||||
@ -756,17 +801,11 @@ fxp_init(ifp)
|
||||
struct fxp_csr *csr = sc->csr;
|
||||
int i, s, mcast, prm;
|
||||
|
||||
/*
|
||||
* Cancel stats updater.
|
||||
*/
|
||||
untimeout(fxp_stats_update, sc);
|
||||
|
||||
s = splimp();
|
||||
/*
|
||||
* Issue software reset and wait 10us for the card to recover.
|
||||
* Cancel any pending I/O
|
||||
*/
|
||||
csr->port = 0;
|
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DELAY(10);
|
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fxp_stop(sc);
|
||||
|
||||
prm = (ifp->if_flags & IFF_PROMISC) ? 1 : 0;
|
||||
sc->promisc_mode = prm;
|
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@ -784,13 +823,13 @@ fxp_init(ifp)
|
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csr->scb_general = 0;
|
||||
csr->scb_command = FXP_SCB_COMMAND_CU_BASE;
|
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|
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fxp_scb_wait(csr);
|
||||
(void) fxp_scb_wait(csr);
|
||||
csr->scb_command = FXP_SCB_COMMAND_RU_BASE;
|
||||
|
||||
/*
|
||||
* Initialize base of dump-stats buffer.
|
||||
*/
|
||||
fxp_scb_wait(csr);
|
||||
(void) fxp_scb_wait(csr);
|
||||
csr->scb_general = vtophys(sc->fxp_stats);
|
||||
csr->scb_command = FXP_SCB_COMMAND_CU_DUMP_ADR;
|
||||
|
||||
@ -838,14 +877,14 @@ fxp_init(ifp)
|
||||
cbp->padding = 1; /* (do) pad short tx packets */
|
||||
cbp->rcv_crc_xfer = 0; /* (don't) xfer CRC to host */
|
||||
cbp->force_fdx = 0; /* (don't) force full duplex */
|
||||
cbp->fdx_pin_en = 0; /* (ignore) FDX# pin */
|
||||
cbp->fdx_pin_en = 1; /* (enable) FDX# pin */
|
||||
cbp->multi_ia = 0; /* (don't) accept multiple IAs */
|
||||
cbp->mc_all = mcast; /* accept all multicasts */
|
||||
|
||||
/*
|
||||
* Start the config command/DMA.
|
||||
*/
|
||||
fxp_scb_wait(csr);
|
||||
(void) fxp_scb_wait(csr);
|
||||
csr->scb_general = vtophys(cbp);
|
||||
csr->scb_command = FXP_SCB_COMMAND_CU_START;
|
||||
/* ...and wait for it to complete. */
|
||||
@ -865,7 +904,7 @@ fxp_init(ifp)
|
||||
/*
|
||||
* Start the IAS (Individual Address Setup) command/DMA.
|
||||
*/
|
||||
fxp_scb_wait(csr);
|
||||
(void) fxp_scb_wait(csr);
|
||||
csr->scb_command = FXP_SCB_COMMAND_CU_START;
|
||||
/* ...and wait for it to complete. */
|
||||
while (!(cb_ias->cb_status & FXP_CB_STATUS_C));
|
||||
@ -891,13 +930,13 @@ fxp_init(ifp)
|
||||
sc->cbl_first = sc->cbl_last = txp;
|
||||
sc->tx_queued = 0;
|
||||
|
||||
fxp_scb_wait(csr);
|
||||
(void) fxp_scb_wait(csr);
|
||||
csr->scb_command = FXP_SCB_COMMAND_CU_START;
|
||||
|
||||
/*
|
||||
* Initialize receiver buffer area - RFA.
|
||||
*/
|
||||
fxp_scb_wait(csr);
|
||||
(void) fxp_scb_wait(csr);
|
||||
csr->scb_general = vtophys(sc->rfa_headm->m_ext.ext_buf);
|
||||
csr->scb_command = FXP_SCB_COMMAND_RU_START;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user