X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fscsi%2Faic7xxx%2Faic7xxx_core.c;h=d37566978fba5b69a9b836a1b02c8c39dd91dad8;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=9a6b4a570aa704d93ef32cbabc7ccb6399e6cc05;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git diff --git a/drivers/scsi/aic7xxx/aic7xxx_core.c b/drivers/scsi/aic7xxx/aic7xxx_core.c index 9a6b4a570..d37566978 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_core.c +++ b/drivers/scsi/aic7xxx/aic7xxx_core.c @@ -37,9 +37,7 @@ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. * - * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.c#134 $ - * - * $FreeBSD$ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.c#155 $ */ #ifdef __linux__ @@ -52,9 +50,6 @@ #include #endif -/****************************** Softc Data ************************************/ -struct ahc_softc_tailq ahc_tailq = TAILQ_HEAD_INITIALIZER(ahc_tailq); - /***************************** Lookup Tables **********************************/ char *ahc_chip_names[] = { @@ -290,10 +285,19 @@ ahc_restart(struct ahc_softc *ahc) ahc_outb(ahc, SEQ_FLAGS2, ahc_inb(ahc, SEQ_FLAGS2) & ~SCB_DMA); } + + /* + * Clear any pending sequencer interrupt. It is no + * longer relevant since we're resetting the Program + * Counter. + */ + ahc_outb(ahc, CLRINT, CLRSEQINT); + ahc_outb(ahc, MWI_RESIDUAL, 0); ahc_outb(ahc, SEQCTL, ahc->seqctl); ahc_outb(ahc, SEQADDR0, 0); ahc_outb(ahc, SEQADDR1, 0); + ahc_unpause(ahc); } @@ -1177,19 +1181,20 @@ ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat) scb_index); } #endif - /* - * Force a renegotiation with this target just in - * case the cable was pulled and will later be - * re-attached. The target may forget its negotiation - * settings with us should it attempt to reselect - * during the interruption. The target will not issue - * a unit attention in this case, so we must always - * renegotiate. - */ ahc_scb_devinfo(ahc, &devinfo, scb); - ahc_force_renegotiation(ahc, &devinfo); ahc_set_transaction_status(scb, CAM_SEL_TIMEOUT); ahc_freeze_devq(ahc, scb); + + /* + * Cancel any pending transactions on the device + * now that it seems to be missing. This will + * also revert us to async/narrow transfers until + * we can renegotiate with the device. + */ + ahc_handle_devreset(ahc, &devinfo, + CAM_SEL_TIMEOUT, + "Selection Timeout", + /*verbose_level*/1); } ahc_outb(ahc, CLRINT, CLRSCSIINT); ahc_restart(ahc); @@ -2456,11 +2461,8 @@ ahc_construct_sdtr(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, { if (offset == 0) period = AHC_ASYNC_XFER_PERIOD; - ahc->msgout_buf[ahc->msgout_index++] = MSG_EXTENDED; - ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_SDTR_LEN; - ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_SDTR; - ahc->msgout_buf[ahc->msgout_index++] = period; - ahc->msgout_buf[ahc->msgout_index++] = offset; + ahc->msgout_index += spi_populate_sync_msg( + ahc->msgout_buf + ahc->msgout_index, period, offset); ahc->msgout_len += 5; if (bootverbose) { printf("(%s:%c:%d:%d): Sending SDTR period %x, offset %x\n", @@ -2477,10 +2479,8 @@ static void ahc_construct_wdtr(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, u_int bus_width) { - ahc->msgout_buf[ahc->msgout_index++] = MSG_EXTENDED; - ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_WDTR_LEN; - ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_WDTR; - ahc->msgout_buf[ahc->msgout_index++] = bus_width; + ahc->msgout_index += spi_populate_width_msg( + ahc->msgout_buf + ahc->msgout_index, bus_width); ahc->msgout_len += 4; if (bootverbose) { printf("(%s:%c:%d:%d): Sending WDTR %x\n", @@ -2500,14 +2500,9 @@ ahc_construct_ppr(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, { if (offset == 0) period = AHC_ASYNC_XFER_PERIOD; - ahc->msgout_buf[ahc->msgout_index++] = MSG_EXTENDED; - ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_PPR_LEN; - ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_PPR; - ahc->msgout_buf[ahc->msgout_index++] = period; - ahc->msgout_buf[ahc->msgout_index++] = 0; - ahc->msgout_buf[ahc->msgout_index++] = offset; - ahc->msgout_buf[ahc->msgout_index++] = bus_width; - ahc->msgout_buf[ahc->msgout_index++] = ppr_options; + ahc->msgout_index += spi_populate_ppr_msg( + ahc->msgout_buf + ahc->msgout_index, period, offset, + bus_width, ppr_options); ahc->msgout_len += 8; if (bootverbose) { printf("(%s:%c:%d:%d): Sending PPR bus_width %x, period %x, " @@ -3766,8 +3761,9 @@ ahc_handle_devreset(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, /*period*/0, /*offset*/0, /*ppr_options*/0, AHC_TRANS_CUR, /*paused*/TRUE); - ahc_send_async(ahc, devinfo->channel, devinfo->target, - CAM_LUN_WILDCARD, AC_SENT_BDR, NULL); + if (status != CAM_SEL_TIMEOUT) + ahc_send_async(ahc, devinfo->channel, devinfo->target, + CAM_LUN_WILDCARD, AC_SENT_BDR, NULL); if (message != NULL && (verbose_level <= bootverbose)) @@ -3878,78 +3874,6 @@ ahc_softc_init(struct ahc_softc *ahc) return (0); } -void -ahc_softc_insert(struct ahc_softc *ahc) -{ - struct ahc_softc *list_ahc; - -#if AHC_PCI_CONFIG > 0 - /* - * Second Function PCI devices need to inherit some - * settings from function 0. - */ - if ((ahc->chip & AHC_BUS_MASK) == AHC_PCI - && (ahc->features & AHC_MULTI_FUNC) != 0) { - TAILQ_FOREACH(list_ahc, &ahc_tailq, links) { - ahc_dev_softc_t list_pci; - ahc_dev_softc_t pci; - - list_pci = list_ahc->dev_softc; - pci = ahc->dev_softc; - if (ahc_get_pci_slot(list_pci) == ahc_get_pci_slot(pci) - && ahc_get_pci_bus(list_pci) == ahc_get_pci_bus(pci)) { - struct ahc_softc *master; - struct ahc_softc *slave; - - if (ahc_get_pci_function(list_pci) == 0) { - master = list_ahc; - slave = ahc; - } else { - master = ahc; - slave = list_ahc; - } - slave->flags &= ~AHC_BIOS_ENABLED; - slave->flags |= - master->flags & AHC_BIOS_ENABLED; - slave->flags &= ~AHC_PRIMARY_CHANNEL; - slave->flags |= - master->flags & AHC_PRIMARY_CHANNEL; - break; - } - } - } -#endif - - /* - * Insertion sort into our list of softcs. - */ - list_ahc = TAILQ_FIRST(&ahc_tailq); - while (list_ahc != NULL - && ahc_softc_comp(ahc, list_ahc) <= 0) - list_ahc = TAILQ_NEXT(list_ahc, links); - if (list_ahc != NULL) - TAILQ_INSERT_BEFORE(list_ahc, ahc, links); - else - TAILQ_INSERT_TAIL(&ahc_tailq, ahc, links); - ahc->init_level++; -} - -/* - * Verify that the passed in softc pointer is for a - * controller that is still configured. - */ -struct ahc_softc * -ahc_find_softc(struct ahc_softc *ahc) -{ - struct ahc_softc *list_ahc; - - TAILQ_FOREACH(list_ahc, &ahc_tailq, links) { - if (list_ahc == ahc) - return (ahc); - } - return (NULL); -} - void ahc_set_unit(struct ahc_softc *ahc, int unit) { @@ -4078,14 +4002,6 @@ ahc_reset(struct ahc_softc *ahc, int reinit) * to disturb the integrity of the bus. */ ahc_pause(ahc); - if ((ahc_inb(ahc, HCNTRL) & CHIPRST) != 0) { - /* - * The chip has not been initialized since - * PCI/EISA/VLB bus reset. Don't trust - * "left over BIOS data". - */ - ahc->flags |= AHC_NO_BIOS_INIT; - } sxfrctl1_b = 0; if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7770) { u_int sblkctl; @@ -5111,14 +5027,23 @@ ahc_pause_and_flushwork(struct ahc_softc *ahc) ahc->flags |= AHC_ALL_INTERRUPTS; paused = FALSE; do { - if (paused) + if (paused) { ahc_unpause(ahc); + /* + * Give the sequencer some time to service + * any active selections. + */ + ahc_delay(500); + } ahc_intr(ahc); ahc_pause(ahc); paused = TRUE; ahc_outb(ahc, SCSISEQ, ahc_inb(ahc, SCSISEQ) & ~ENSELO); - ahc_clear_critical_section(ahc); intstat = ahc_inb(ahc, INTSTAT); + if ((intstat & INT_PEND) == 0) { + ahc_clear_critical_section(ahc); + intstat = ahc_inb(ahc, INTSTAT); + } } while (--maxloops && (intstat != 0xFF || (ahc->features & AHC_REMOVABLE) == 0) && ((intstat & INT_PEND) != 0