diff options
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/aic7xxx/aic7xxx.c | 418 | ||||
| -rw-r--r-- | sys/dev/aic7xxx/aic7xxx.h | 51 | ||||
| -rw-r--r-- | sys/dev/aic7xxx/aic7xxx.reg | 8 | ||||
| -rw-r--r-- | sys/dev/aic7xxx/aic7xxx.seq | 107 |
4 files changed, 435 insertions, 149 deletions
diff --git a/sys/dev/aic7xxx/aic7xxx.c b/sys/dev/aic7xxx/aic7xxx.c index a63000b..93c6261 100644 --- a/sys/dev/aic7xxx/aic7xxx.c +++ b/sys/dev/aic7xxx/aic7xxx.c @@ -37,7 +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#80 $ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.c#100 $ * * $FreeBSD$ */ @@ -161,8 +161,6 @@ static struct ahc_syncrate* static void ahc_update_pending_scbs(struct ahc_softc *ahc); static void ahc_fetch_devinfo(struct ahc_softc *ahc, struct ahc_devinfo *devinfo); -static void ahc_print_devinfo(struct ahc_softc *ahc, - struct ahc_devinfo *devinfo); static void ahc_scb_devinfo(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, struct scb *scb); @@ -183,6 +181,7 @@ static void ahc_construct_ppr(struct ahc_softc *ahc, u_int period, u_int offset, u_int bus_width, u_int ppr_options); static void ahc_clear_msg_state(struct ahc_softc *ahc); +static void ahc_handle_proto_violation(struct ahc_softc *ahc); static void ahc_handle_message_phase(struct ahc_softc *ahc); typedef enum { AHCMSG_1B, @@ -231,6 +230,7 @@ static int ahc_check_patch(struct ahc_softc *ahc, u_int start_instr, u_int *skip_addr); static void ahc_download_instr(struct ahc_softc *ahc, u_int instrptr, uint8_t *dconsts); +static int ahc_probe_stack_size(struct ahc_softc *ahc); #ifdef AHC_TARGET_MODE static void ahc_queue_lstate_event(struct ahc_softc *ahc, struct ahc_tmode_lstate *lstate, @@ -547,7 +547,7 @@ ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat) == ahc_get_transfer_length(scb)) { ahc_update_neg_request(ahc, &devinfo, tstate, targ_info, - /*force*/TRUE); + AHC_NEG_IF_NON_ASYNC); } if (tstate->auto_negotiate & devinfo.target_mask) { hscb->control |= MK_MESSAGE; @@ -563,16 +563,11 @@ ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat) scb->flags |= SCB_SENSE; ahc_qinfifo_requeue_tail(ahc, scb); ahc_outb(ahc, RETURN_1, SEND_SENSE); -#ifdef __FreeBSD__ /* * Ensure we have enough time to actually * retrieve the sense. */ - untimeout(ahc_timeout, (caddr_t)scb, - scb->io_ctx->ccb_h.timeout_ch); - scb->io_ctx->ccb_h.timeout_ch = - timeout(ahc_timeout, (caddr_t)scb, 5 * hz); -#endif + ahc_scb_timer_reset(scb, 5 * 1000000); break; } default: @@ -626,27 +621,10 @@ ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat) ahc_name(ahc), devinfo.channel, devinfo.target, rejbyte); break; } - case NO_IDENT: + case PROTO_VIOLATION: { - /* - * The reconnecting target either did not send an identify - * message, or did, but we didn't find an SCB to match and - * before it could respond to our ATN/abort, it hit a dataphase. - * The only safe thing to do is to blow it away with a bus - * reset. - */ - int found; - - printf("%s:%c:%d: Target did not send an IDENTIFY message. " - "LASTPHASE = 0x%x, SAVED_SCSIID == 0x%x\n", - ahc_name(ahc), devinfo.channel, devinfo.target, - ahc_inb(ahc, LASTPHASE), ahc_inb(ahc, SAVED_SCSIID)); - found = ahc_reset_channel(ahc, devinfo.channel, - /*initiate reset*/TRUE); - printf("%s: Issued Channel %c Bus Reset. " - "%d SCBs aborted\n", ahc_name(ahc), devinfo.channel, - found); - return; + ahc_handle_proto_violation(ahc); + break; } case IGN_WIDE_RES: ahc_handle_ign_wide_residue(ahc, &devinfo); @@ -774,7 +752,44 @@ ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat) ahc_outb(ahc, LASTPHASE, curphase); ahc_outb(ahc, SCSISIGO, curphase); } - ahc_inb(ahc, SCSIDATL); + if ((ahc_inb(ahc, SCSISIGI) & (CDI|MSGI)) == 0) { + int wait; + + /* + * In a data phase. Faster to bitbucket + * the data than to individually ack each + * byte. This is also the only strategy + * that will work with AUTOACK enabled. + */ + ahc_outb(ahc, SXFRCTL1, + ahc_inb(ahc, SXFRCTL1) | BITBUCKET); + wait = 5000; + while (--wait != 0) { + if ((ahc_inb(ahc, SCSISIGI) + & (CDI|MSGI)) != 0) + break; + ahc_delay(100); + } + ahc_outb(ahc, SXFRCTL1, + ahc_inb(ahc, SXFRCTL1) & ~BITBUCKET); + if (wait == 0) { + struct scb *scb; + u_int scb_index; + + ahc_print_devinfo(ahc, &devinfo); + printf("Unable to clear parity error. " + "Resetting bus.\n"); + scb_index = ahc_inb(ahc, SCB_TAG); + scb = ahc_lookup_scb(ahc, scb_index); + if (scb != NULL) + ahc_set_transaction_status(scb, + CAM_UNCOR_PARITY); + ahc_reset_channel(ahc, devinfo.channel, + /*init reset*/TRUE); + } + } else { + ahc_inb(ahc, SCSIDATL); + } } break; } @@ -944,9 +959,6 @@ ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat) char cur_channel; char intr_channel; - /* Make sure the sequencer is in a safe location. */ - ahc_clear_critical_section(ahc); - if ((ahc->features & AHC_TWIN) != 0 && ((ahc_inb(ahc, SBLKCTL) & SELBUSB) != 0)) cur_channel = 'B'; @@ -975,10 +987,13 @@ ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat) } } + /* Make sure the sequencer is in a safe location. */ + ahc_clear_critical_section(ahc); + scb_index = ahc_inb(ahc, SCB_TAG); scb = ahc_lookup_scb(ahc, scb_index); if (scb != NULL - && (ahc_inb(ahc, SEQ_FLAGS) & IDENTIFY_SEEN) == 0) + && (ahc_inb(ahc, SEQ_FLAGS) & NOT_IDENTIFIED) != 0) scb = NULL; if ((ahc->features & AHC_ULTRA2) != 0 @@ -1052,9 +1067,10 @@ ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat) break; } mesg_out = ahc_phase_table[i].mesg_out; - if (scb != NULL) + if (scb != NULL) { ahc_print_path(ahc, scb); - else + scb->flags |= SCB_TRANSMISSION_ERROR; + } else printf("%s:%c:%d: ", ahc_name(ahc), intr_channel, SCSIID_TARGET(ahc, ahc_inb(ahc, SAVED_SCSIID))); scsirate = ahc_inb(ahc, SCSIRATE); @@ -1137,7 +1153,18 @@ ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat) printf("%s: ahc_intr - referenced scb not " "valid during SELTO scb(%d, %d)\n", ahc_name(ahc), scbptr, scb_index); + ahc_dump_card_state(ahc); } else { + /* + * 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_force_renegotiation(ahc); ahc_set_transaction_status(scb, CAM_SEL_TIMEOUT); ahc_freeze_devq(ahc, scb); #ifdef AHC_DEBUG @@ -1149,16 +1176,6 @@ ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat) #endif } ahc_outb(ahc, CLRINT, CLRSCSIINT); - /* - * 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_force_renegotiation(ahc); ahc_restart(ahc); } else if ((status & BUSFREE) != 0 && (ahc_inb(ahc, SIMODE1) & ENBUSFREE) != 0) { @@ -1357,7 +1374,7 @@ ahc_force_renegotiation(struct ahc_softc *ahc) devinfo.target, &tstate); ahc_update_neg_request(ahc, &devinfo, tstate, - targ_info, /*force*/TRUE); + targ_info, AHC_NEG_IF_NON_ASYNC); } #define AHC_MAX_STEPS 2000 @@ -1420,11 +1437,26 @@ ahc_clear_critical_section(struct ahc_softc *ahc) simode0 = ahc_inb(ahc, SIMODE0); ahc_outb(ahc, SIMODE0, 0); simode1 = ahc_inb(ahc, SIMODE1); - ahc_outb(ahc, SIMODE1, 0); + if ((ahc->features & AHC_DT) != 0) + /* + * On DT class controllers, we + * use the enhanced busfree logic. + * Unfortunately we cannot re-enable + * busfree detection within the + * current connection, so we must + * leave it on while single stepping. + */ + ahc_outb(ahc, SIMODE1, ENBUSFREE); + else + ahc_outb(ahc, SIMODE1, 0); ahc_outb(ahc, CLRINT, CLRSCSIINT); ahc_outb(ahc, SEQCTL, ahc_inb(ahc, SEQCTL) | STEP); stepping = TRUE; } + if ((ahc->features & AHC_DT) != 0) { + ahc_outb(ahc, CLRSINT1, CLRBUSFREE); + ahc_outb(ahc, CLRINT, CLRSCSIINT); + } ahc_outb(ahc, HCNTRL, ahc->unpause); while (!ahc_is_paused(ahc)) ahc_delay(200); @@ -1573,7 +1605,7 @@ ahc_free_tstate(struct ahc_softc *ahc, u_int scsi_id, char channel, int force) * by the capabilities of the bus connectivity of and sync settings for * the target. */ -static struct ahc_syncrate * +struct ahc_syncrate * ahc_devlimited_syncrate(struct ahc_softc *ahc, struct ahc_initiator_tinfo *tinfo, u_int *period, u_int *ppr_options, role_t role) @@ -1786,16 +1818,28 @@ ahc_validate_width(struct ahc_softc *ahc, struct ahc_initiator_tinfo *tinfo, int ahc_update_neg_request(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, struct ahc_tmode_tstate *tstate, - struct ahc_initiator_tinfo *tinfo, int force) + struct ahc_initiator_tinfo *tinfo, ahc_neg_type neg_type) { u_int auto_negotiate_orig; auto_negotiate_orig = tstate->auto_negotiate; + if (neg_type == AHC_NEG_ALWAYS) { + /* + * Force our "current" settings to be + * unknown so that unless a bus reset + * occurs the need to renegotiate is + * recorded persistently. + */ + tinfo->curr.period = AHC_PERIOD_UNKNOWN; + tinfo->curr.width = AHC_WIDTH_UNKNOWN; + tinfo->curr.offset = AHC_OFFSET_UNKNOWN; + tinfo->curr.ppr_options = AHC_OFFSET_UNKNOWN; + } if (tinfo->curr.period != tinfo->goal.period || tinfo->curr.width != tinfo->goal.width || tinfo->curr.offset != tinfo->goal.offset || tinfo->curr.ppr_options != tinfo->goal.ppr_options - || (force + || (neg_type == AHC_NEG_IF_NON_ASYNC && (tinfo->goal.offset != 0 || tinfo->goal.width != MSG_EXT_WDTR_BUS_8_BIT || tinfo->goal.ppr_options != 0))) @@ -1927,7 +1971,7 @@ ahc_set_syncrate(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, } update_needed += ahc_update_neg_request(ahc, devinfo, tstate, - tinfo, /*force*/FALSE); + tinfo, AHC_NEG_TO_GOAL); if (update_needed) ahc_update_pending_scbs(ahc); @@ -1989,7 +2033,7 @@ ahc_set_width(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, } update_needed += ahc_update_neg_request(ahc, devinfo, tstate, - tinfo, /*force*/FALSE); + tinfo, AHC_NEG_TO_GOAL); if (update_needed) ahc_update_pending_scbs(ahc); } @@ -2154,10 +2198,10 @@ ahc_compile_devinfo(struct ahc_devinfo *devinfo, u_int our_id, u_int target, devinfo->target_mask = (0x01 << devinfo->target_offset); } -static void +void ahc_print_devinfo(struct ahc_softc *ahc, struct ahc_devinfo *devinfo) { - printf("%s:%c:%d:%d:", ahc_name(ahc), devinfo->channel, + printf("%s:%c:%d:%d: ", ahc_name(ahc), devinfo->channel, devinfo->target, devinfo->lun); } @@ -2170,7 +2214,7 @@ ahc_scb_devinfo(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, our_id = SCSIID_OUR_ID(scb->hscb->scsiid); role = ROLE_INITIATOR; - if ((scb->hscb->control & TARGET_SCB) != 0) + if ((scb->flags & SCB_TARGET_SCB) != 0) role = ROLE_TARGET; ahc_compile_devinfo(devinfo, our_id, SCB_GET_TARGET(ahc, scb), SCB_GET_LUN(scb), SCB_GET_CHANNEL(ahc, scb), role); @@ -2295,7 +2339,6 @@ ahc_build_transfer_msg(struct ahc_softc *ahc, struct ahc_devinfo *devinfo) int dowide; int dosync; int doppr; - int use_ppr; u_int period; u_int ppr_options; u_int offset; @@ -2317,23 +2360,37 @@ ahc_build_transfer_msg(struct ahc_softc *ahc, struct ahc_devinfo *devinfo) &ppr_options, devinfo->role); dowide = tinfo->curr.width != tinfo->goal.width; dosync = tinfo->curr.period != period; - doppr = tinfo->curr.ppr_options != ppr_options; + /* + * Only use PPR if we have options that need it, even if the device + * claims to support it. There might be an expander in the way + * that doesn't. + */ + doppr = ppr_options != 0; if (!dowide && !dosync && !doppr) { dowide = tinfo->goal.width != MSG_EXT_WDTR_BUS_8_BIT; dosync = tinfo->goal.offset != 0; - doppr = tinfo->goal.ppr_options != 0; } if (!dowide && !dosync && !doppr) { - panic("ahc_intr: AWAITING_MSG for negotiation, " - "but no negotiation needed\n"); + /* + * Force async with a WDTR message if we have a wide bus, + * or just issue an SDTR with a 0 offset. + */ + if ((ahc->features & AHC_WIDE) != 0) + dowide = 1; + else + dosync = 1; + + if (bootverbose) { + ahc_print_devinfo(ahc, devinfo); + printf("Ensuring async\n"); + } } - use_ppr = (tinfo->curr.transport_version >= 3) || doppr; /* Target initiated PPR is not allowed in the SCSI spec */ if (devinfo->role == ROLE_TARGET) - use_ppr = 0; + doppr = 0; /* * Both the PPR message and SDTR message require the @@ -2343,14 +2400,14 @@ ahc_build_transfer_msg(struct ahc_softc *ahc, struct ahc_devinfo *devinfo) * Regardless, guarantee that if we are using WDTR and SDTR * messages that WDTR comes first. */ - if (use_ppr || (dosync && !dowide)) { + if (doppr || (dosync && !dowide)) { offset = tinfo->goal.offset; ahc_validate_offset(ahc, tinfo, rate, &offset, - use_ppr ? tinfo->goal.width - : tinfo->curr.width, + doppr ? tinfo->goal.width + : tinfo->curr.width, devinfo->role); - if (use_ppr) { + if (doppr) { ahc_construct_ppr(ahc, devinfo, period, offset, tinfo->goal.width, ppr_options); } else { @@ -2369,6 +2426,8 @@ static void ahc_construct_sdtr(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, u_int period, u_int offset) { + 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; @@ -2411,6 +2470,8 @@ ahc_construct_ppr(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, u_int period, u_int offset, u_int bus_width, u_int ppr_options) { + 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; @@ -2449,6 +2510,100 @@ ahc_clear_msg_state(struct ahc_softc *ahc) ahc_inb(ahc, SEQ_FLAGS2) & ~TARGET_MSG_PENDING); } +static void +ahc_handle_proto_violation(struct ahc_softc *ahc) +{ + struct ahc_devinfo devinfo; + struct scb *scb; + u_int scbid; + u_int seq_flags; + u_int curphase; + u_int lastphase; + int found; + + ahc_fetch_devinfo(ahc, &devinfo); + scbid = ahc_inb(ahc, SCB_TAG); + scb = ahc_lookup_scb(ahc, scbid); + seq_flags = ahc_inb(ahc, SEQ_FLAGS); + curphase = ahc_inb(ahc, SCSISIGI) & PHASE_MASK; + lastphase = ahc_inb(ahc, LASTPHASE); + if ((seq_flags & NOT_IDENTIFIED) != 0) { + + /* + * The reconnecting target either did not send an + * identify message, or did, but we didn't find an SCB + * to match. + */ + ahc_print_devinfo(ahc, &devinfo); + printf("Target did not send an IDENTIFY message. " + "LASTPHASE = 0x%x.\n", lastphase); + scb = NULL; + } else if (scb == NULL) { + /* + * We don't seem to have an SCB active for this + * transaction. Print an error and reset the bus. + */ + ahc_print_devinfo(ahc, &devinfo); + printf("No SCB found during protocol violation\n"); + goto proto_violation_reset; + } else { + ahc_set_transaction_status(scb, CAM_SEQUENCE_FAIL); + if ((seq_flags & NO_CDB_SENT) != 0) { + ahc_print_path(ahc, scb); + printf("No or incomplete CDB sent to device.\n"); + } else if ((ahc_inb(ahc, SCB_CONTROL) & STATUS_RCVD) == 0) { + /* + * The target never bothered to provide status to + * us prior to completing the command. Since we don't + * know the disposition of this command, we must attempt + * to abort it. Assert ATN and prepare to send an abort + * message. + */ + ahc_print_path(ahc, scb); + printf("Completed command without status.\n"); + } else { + ahc_print_path(ahc, scb); + printf("Unknown protocol violation.\n"); + ahc_dump_card_state(ahc); + } + } + if ((lastphase & ~P_DATAIN_DT) == 0 + || lastphase == P_COMMAND) { +proto_violation_reset: + /* + * Target either went directly to data/command + * phase or didn't respond to our ATN. + * The only safe thing to do is to blow + * it away with a bus reset. + */ + found = ahc_reset_channel(ahc, 'A', TRUE); + printf("%s: Issued Channel %c Bus Reset. " + "%d SCBs aborted\n", ahc_name(ahc), 'A', found); + } else { + /* + * Leave the selection hardware off in case + * this abort attempt will affect yet to + * be sent commands. + */ + ahc_outb(ahc, SCSISEQ, + ahc_inb(ahc, SCSISEQ) & ~ENSELO); + ahc_assert_atn(ahc); + ahc_outb(ahc, MSG_OUT, HOST_MSG); + if (scb == NULL) { + ahc_print_devinfo(ahc, &devinfo); + ahc->msgout_buf[0] = MSG_ABORT_TASK; + ahc->msgout_len = 1; + ahc->msgout_index = 0; + ahc->msg_type = MSG_TYPE_INITIATOR_MSGOUT; + } else { + ahc_print_path(ahc, scb); + scb->flags |= SCB_ABORT; + } + printf("Protocol violation %s. Attempting to abort.\n", + ahc_lookup_phase_entry(curphase)->phasemsg); + } +} + /* * Manual message loop handler. */ @@ -3829,6 +3984,8 @@ ahc_free(struct ahc_softc *ahc) free(ahc->name, M_DEVBUF); if (ahc->seep_config != NULL) free(ahc->seep_config, M_DEVBUF); + if (ahc->saved_stack != NULL) + free(ahc->saved_stack, M_DEVBUF); #ifndef __FreeBSD__ free(ahc, M_DEVBUF); #endif @@ -4364,6 +4521,12 @@ ahc_init(struct ahc_softc *ahc) size_t driver_data_size; uint32_t physaddr; + ahc->stack_size = ahc_probe_stack_size(ahc); + ahc->saved_stack = malloc(ahc->stack_size * sizeof(uint16_t), + M_DEVBUF, M_NOWAIT); + if (ahc->saved_stack == NULL) + return (ENOMEM); + #ifdef AHC_DEBUG_SEQUENCER ahc->flags |= AHC_SEQUENCER_DEBUG; #endif @@ -6471,6 +6634,41 @@ ahc_download_instr(struct ahc_softc *ahc, u_int instrptr, uint8_t *dconsts) } } +static int +ahc_probe_stack_size(struct ahc_softc *ahc) +{ + int last_probe; + + last_probe = 0; + while (1) { + int i; + + /* + * We avoid using 0 as a pattern to avoid + * confusion if the stack implementation + * "back-fills" with zeros when "poping' + * entries. + */ + for (i = 1; i <= last_probe+1; i++) { + ahc_outb(ahc, STACK, i & 0xFF); + ahc_outb(ahc, STACK, (i >> 8) & 0xFF); + } + + /* Verify */ + for (i = last_probe+1; i > 0; i--) { + u_int stack_entry; + + stack_entry = ahc_inb(ahc, STACK) + |(ahc_inb(ahc, STACK) << 8); + if (stack_entry != i) + goto sized; + } + last_probe++; + } +sized: + return (last_probe); +} + int ahc_print_register(ahc_reg_parse_entry_t *table, u_int num_entries, const char *name, u_int address, u_int value, @@ -6479,7 +6677,7 @@ ahc_print_register(ahc_reg_parse_entry_t *table, u_int num_entries, int printed; u_int printed_mask; - if (*cur_column >= wrap_point) { + if (cur_column != NULL && *cur_column >= wrap_point) { printf("\n"); *cur_column = 0; } @@ -6514,18 +6712,20 @@ ahc_print_register(ahc_reg_parse_entry_t *table, u_int num_entries, printed += printf(") "); else printed += printf(" "); - *cur_column += printed; + if (cur_column != NULL) + *cur_column += printed; return (printed); } void ahc_dump_card_state(struct ahc_softc *ahc) { - struct scb *scb; - struct scb_tailq *untagged_q; - int target; - int maxtarget; - int i; + struct scb *scb; + struct scb_tailq *untagged_q; + u_int cur_col; + int target; + int maxtarget; + int i; uint8_t last_phase; uint8_t qinpos; uint8_t qintail; @@ -6544,22 +6744,34 @@ ahc_dump_card_state(struct ahc_softc *ahc) ahc_inb(ahc, ARG_2)); printf("HCNT = 0x%x SCBPTR = 0x%x\n", ahc_inb(ahc, HCNT), ahc_inb(ahc, SCBPTR)); - printf("SCSISEQ = 0x%x, SBLKCTL = 0x%x\n", - ahc_inb(ahc, SCSISEQ), ahc_inb(ahc, SBLKCTL)); - printf(" DFCNTRL = 0x%x, DFSTATUS = 0x%x\n", - ahc_inb(ahc, DFCNTRL), ahc_inb(ahc, DFSTATUS)); - printf("LASTPHASE = 0x%x, SCSISIGI = 0x%x, SXFRCTL0 = 0x%x\n", - last_phase, ahc_inb(ahc, SCSISIGI), ahc_inb(ahc, SXFRCTL0)); - printf("SSTAT0 = 0x%x, SSTAT1 = 0x%x\n", - ahc_inb(ahc, SSTAT0), ahc_inb(ahc, SSTAT1)); + cur_col = 0; if ((ahc->features & AHC_DT) != 0) - printf("SCSIPHASE = 0x%x\n", ahc_inb(ahc, SCSIPHASE)); - printf("STACK == 0x%x, 0x%x, 0x%x, 0x%x\n", - ahc_inb(ahc, STACK) | (ahc_inb(ahc, STACK) << 8), - ahc_inb(ahc, STACK) | (ahc_inb(ahc, STACK) << 8), - ahc_inb(ahc, STACK) | (ahc_inb(ahc, STACK) << 8), - ahc_inb(ahc, STACK) | (ahc_inb(ahc, STACK) << 8)); - printf("SCB count = %d\n", ahc->scb_data->numscbs); + ahc_scsisigi_print(ahc_inb(ahc, SCSISIGI), &cur_col, 50); + ahc_scsiphase_print(ahc_inb(ahc, SCSIPHASE), &cur_col, 50); + ahc_scsibusl_print(ahc_inb(ahc, SCSIBUSL), &cur_col, 50); + ahc_lastphase_print(ahc_inb(ahc, LASTPHASE), &cur_col, 50); + ahc_scsiseq_print(ahc_inb(ahc, SCSISEQ), &cur_col, 50); + ahc_sblkctl_print(ahc_inb(ahc, SBLKCTL), &cur_col, 50); + ahc_seqctl_print(ahc_inb(ahc, SEQCTL), &cur_col, 50); + ahc_seq_flags_print(ahc_inb(ahc, SEQ_FLAGS), &cur_col, 50); + ahc_sstat0_print(ahc_inb(ahc, SSTAT0), &cur_col, 50); + ahc_sstat1_print(ahc_inb(ahc, SSTAT1), &cur_col, 50); + ahc_sstat2_print(ahc_inb(ahc, SSTAT2), &cur_col, 50); + ahc_sstat3_print(ahc_inb(ahc, SSTAT3), &cur_col, 50); + ahc_simode0_print(ahc_inb(ahc, SIMODE0), &cur_col, 50); + ahc_simode1_print(ahc_inb(ahc, SIMODE1), &cur_col, 50); + ahc_sxfrctl0_print(ahc_inb(ahc, SXFRCTL0), &cur_col, 50); + ahc_dfcntrl_print(ahc_inb(ahc, DFCNTRL), &cur_col, 50); + ahc_dfstatus_print(ahc_inb(ahc, DFSTATUS), &cur_col, 50); + if (cur_col != 0) + printf("\n"); + printf("STACK:"); + for (i = 0; i < ahc->stack_size; i++) { + ahc->saved_stack[i] = + ahc_inb(ahc, STACK)|(ahc_inb(ahc, STACK) << 8); + printf(" 0x%x", ahc->saved_stack[i]); + } + printf("\nSCB count = %d\n", ahc->scb_data->numscbs); printf("Kernel NEXTQSCB = %d\n", ahc->next_queued_scb->hscb->tag); printf("Card NEXTQSCB = %d\n", ahc_inb(ahc, NEXT_QUEUED_SCB)); /* QINFIFO */ @@ -6619,11 +6831,12 @@ ahc_dump_card_state(struct ahc_softc *ahc) printf("Sequencer SCB Info: "); for (i = 0; i < ahc->scb_data->maxhscbs; i++) { ahc_outb(ahc, SCBPTR, i); - printf("%d(c 0x%x, s 0x%x, l %d, t 0x%x) ", - i, ahc_inb(ahc, SCB_CONTROL), - ahc_inb(ahc, SCB_SCSIID), - ahc_inb(ahc, SCB_LUN), - ahc_inb(ahc, SCB_TAG)); + cur_col = printf("\n%3d ", i); + + ahc_scb_control_print(ahc_inb(ahc, SCB_CONTROL), &cur_col, 60); + ahc_scb_scsiid_print(ahc_inb(ahc, SCB_SCSIID), &cur_col, 60); + ahc_scb_lun_print(ahc_inb(ahc, SCB_LUN), &cur_col, 60); + ahc_scb_tag_print(ahc_inb(ahc, SCB_TAG), &cur_col, 60); } printf("\n"); @@ -6632,14 +6845,17 @@ ahc_dump_card_state(struct ahc_softc *ahc) LIST_FOREACH(scb, &ahc->pending_scbs, pending_links) { if (i++ > 256) break; - if (scb != LIST_FIRST(&ahc->pending_scbs)) - printf(", "); - printf("%d(c 0x%x, s 0x%x, l %d)", scb->hscb->tag, - scb->hscb->control, scb->hscb->scsiid, scb->hscb->lun); + cur_col = printf("\n%3d ", scb->hscb->tag); + ahc_scb_control_print(scb->hscb->control, &cur_col, 60); + ahc_scb_scsiid_print(scb->hscb->scsiid, &cur_col, 60); + ahc_scb_lun_print(scb->hscb->lun, &cur_col, 60); if ((ahc->flags & AHC_PAGESCBS) == 0) { ahc_outb(ahc, SCBPTR, scb->hscb->tag); - printf("(0x%x, 0x%x)", ahc_inb(ahc, SCB_CONTROL), - ahc_inb(ahc, SCB_TAG)); + printf("("); + ahc_scb_control_print(ahc_inb(ahc, SCB_CONTROL), + &cur_col, 60); + ahc_scb_tag_print(ahc_inb(ahc, SCB_TAG), &cur_col, 60); + printf(")"); } } printf("\n"); diff --git a/sys/dev/aic7xxx/aic7xxx.h b/sys/dev/aic7xxx/aic7xxx.h index 054512a..12acab3 100644 --- a/sys/dev/aic7xxx/aic7xxx.h +++ b/sys/dev/aic7xxx/aic7xxx.h @@ -37,7 +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.h#51 $ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.h#62 $ * * $FreeBSD$ */ @@ -534,10 +534,21 @@ typedef enum { SCB_RECOVERY_SCB = 0x0020, SCB_AUTO_NEGOTIATE = 0x0040,/* Negotiate to achieve goal. */ SCB_NEGOTIATE = 0x0080,/* Negotiation forced for command. */ - SCB_ABORT = 0x1000, - SCB_UNTAGGEDQ = 0x2000, - SCB_ACTIVE = 0x4000, - SCB_TARGET_IMMEDIATE = 0x8000 + SCB_ABORT = 0x0100, + SCB_UNTAGGEDQ = 0x0200, + SCB_ACTIVE = 0x0400, + SCB_TARGET_IMMEDIATE = 0x0800, + SCB_TRANSMISSION_ERROR = 0x1000,/* + * We detected a parity or CRC + * error that has effected the + * payload of the command. This + * flag is checked when normal + * status is returned to catch + * the case of a target not + * responding to our attempt + * to report the error. + */ + SCB_TARGET_SCB = 0x2000 } scb_flag; struct scb { @@ -662,6 +673,11 @@ struct ahc_tmode_lstate; #define AHC_TRANS_GOAL 0x04 /* Modify negotiation goal */ #define AHC_TRANS_USER 0x08 /* Modify user negotiation settings */ +#define AHC_WIDTH_UNKNOWN 0xFF +#define AHC_PERIOD_UNKNOWN 0xFF +#define AHC_OFFSET_UNKNOWN 0x0 +#define AHC_PPR_OPTS_UNKNOWN 0xFF + /* * Transfer Negotiation Information. */ @@ -716,6 +732,10 @@ struct ahc_syncrate { char *rate; }; +/* Safe and valid period for async negotiations. */ +#define AHC_ASYNC_XFER_PERIOD 0x44 +#define AHC_ULTRA2_XFER_PERIOD 0x0a + /* * Indexes into our table of syncronous transfer rates. */ @@ -797,7 +817,7 @@ struct seeprom_config { #define CFSEAUTOTERM 0x0400 /* Ultra2 Perform secondary Auto Term*/ #define CFSELOWTERM 0x0800 /* Ultra2 secondary low term */ #define CFSEHIGHTERM 0x1000 /* Ultra2 secondary high term */ -#define CFDOMAINVAL 0x4000 /* Perform Domain Validation*/ +#define CFENABLEDV 0x4000 /* Perform Domain Validation*/ /* * Bus Release Time, Host Adapter ID @@ -864,6 +884,7 @@ struct ahc_suspend_state { }; typedef void (*ahc_bus_intr_t)(struct ahc_softc *); +typedef void ahc_callback_t (void *); struct ahc_softc { bus_space_tag_t tag; @@ -1016,6 +1037,9 @@ struct ahc_softc { /* PCI cacheline size. */ u_int pci_cachesize; + u_int stack_size; + uint16_t *saved_stack; + /* Per-Unit descriptive information */ const char *description; char *name; @@ -1088,6 +1112,7 @@ void ahc_busy_tcl(struct ahc_softc *ahc, struct ahc_pci_identity *ahc_find_pci_device(ahc_dev_softc_t); int ahc_pci_config(struct ahc_softc *, struct ahc_pci_identity *); +int ahc_pci_test_register_access(struct ahc_softc *); /*************************** EISA/VL Front End ********************************/ struct aic7770_identity *aic7770_find_device(uint32_t); @@ -1186,11 +1211,20 @@ void ahc_validate_width(struct ahc_softc *ahc, struct ahc_initiator_tinfo *tinfo, u_int *bus_width, role_t role); +/* + * Negotiation types. These are used to qualify if we should renegotiate + * even if our goal and current transport parameters are identical. + */ +typedef enum { + AHC_NEG_TO_GOAL, /* Renegotiate only if goal and curr differ. */ + AHC_NEG_IF_NON_ASYNC, /* Renegotiate so long as goal is non-async. */ + AHC_NEG_ALWAYS /* Renegotiat even if goal is async. */ +} ahc_neg_type; int ahc_update_neg_request(struct ahc_softc*, struct ahc_devinfo*, struct ahc_tmode_tstate*, struct ahc_initiator_tinfo*, - int /*force*/); + ahc_neg_type); void ahc_set_width(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, u_int width, u_int type, int paused); @@ -1234,6 +1268,7 @@ extern uint32_t ahc_debug; #define AHC_SHOW_TERMCTL 0x0008 #define AHC_SHOW_MEMORY 0x0010 #define AHC_SHOW_MESSAGES 0x0020 +#define AHC_SHOW_DV 0x0040 #define AHC_SHOW_SELTO 0x0080 #define AHC_SHOW_QFULL 0x0200 #define AHC_SHOW_QUEUE 0x0400 @@ -1241,6 +1276,8 @@ extern uint32_t ahc_debug; #define AHC_DEBUG_SEQUENCER 0x1000 #endif void ahc_print_scb(struct scb *scb); +void ahc_print_devinfo(struct ahc_softc *ahc, + struct ahc_devinfo *dev); void ahc_dump_card_state(struct ahc_softc *ahc); int ahc_print_register(ahc_reg_parse_entry_t *table, u_int num_entries, diff --git a/sys/dev/aic7xxx/aic7xxx.reg b/sys/dev/aic7xxx/aic7xxx.reg index eef3b13..b3e4456 100644 --- a/sys/dev/aic7xxx/aic7xxx.reg +++ b/sys/dev/aic7xxx/aic7xxx.reg @@ -39,7 +39,7 @@ * * $FreeBSD$ */ -VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#34 $" +VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#35 $" /* * This file is processed by the aic7xxx_asm utility for use in assembling @@ -804,7 +804,7 @@ register INTSTAT { field SEQINT 0x01 mask BAD_PHASE SEQINT /* unknown scsi bus phase */ mask SEND_REJECT 0x10|SEQINT /* sending a message reject */ - mask NO_IDENT 0x20|SEQINT /* no IDENTIFY after reconnect*/ + mask PROTO_VIOLATION 0x20|SEQINT /* SCSI protocol violation */ mask NO_MATCH 0x30|SEQINT /* no cmd match for reconnect */ mask IGN_WIDE_RES 0x40|SEQINT /* Complex IGN Wide Res Msg */ mask PDATA_REINIT 0x50|SEQINT /* @@ -1062,6 +1062,7 @@ scb { SCB_CONTROL { size 1 field TARGET_SCB 0x80 + field STATUS_RCVD 0x80 field DISCENB 0x40 field TAG_ENB 0x20 field MK_MESSAGE 0x10 @@ -1335,7 +1336,8 @@ scratch_ram { } SEQ_FLAGS { size 1 - field IDENTIFY_SEEN 0x80 + field NOT_IDENTIFIED 0x80 + field NO_CDB_SENT 0x40 field TARGET_CMD_IS_TAGGED 0x40 field DPHASE 0x20 /* Target flags */ diff --git a/sys/dev/aic7xxx/aic7xxx.seq b/sys/dev/aic7xxx/aic7xxx.seq index cf850c3..b784635 100644 --- a/sys/dev/aic7xxx/aic7xxx.seq +++ b/sys/dev/aic7xxx/aic7xxx.seq @@ -40,7 +40,7 @@ * $FreeBSD$ */ -VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.seq#50 $" +VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.seq#52 $" PATCH_ARG_LIST = "struct ahc_softc *ahc" PREFIX = "ahc_" @@ -306,7 +306,7 @@ ident_messages_done: } else { mvi DFDAT, SCB_LIST_NULL; } - or SEQ_FLAGS, TARG_CMD_PENDING|IDENTIFY_SEEN; + mvi SEQ_FLAGS, TARG_CMD_PENDING; test SEQ_FLAGS2, TARGET_MSG_PENDING jnz target_mesgout_pending; test SCSISIGI, ATNI jnz target_mesgout_continue; @@ -648,7 +648,7 @@ initiator_select: * asserted. */ mvi MSG_OUT, MSG_IDENTIFYFLAG; - or SEQ_FLAGS, IDENTIFY_SEEN; + mvi SEQ_FLAGS, NO_CDB_SENT; mvi CLRSINT0, CLRSELDO; /* @@ -707,7 +707,7 @@ clear_target_state: } mvi LASTPHASE, P_BUSFREE; /* clear target specific flags */ - clr SEQ_FLAGS ret; + mvi SEQ_FLAGS, NOT_IDENTIFIED|NO_CDB_SENT ret; sg_advance: clr A; /* add sizeof(struct scatter) */ @@ -821,9 +821,9 @@ calc_mwi_residual_final: } p_data: - test SEQ_FLAGS,IDENTIFY_SEEN jnz p_data_okay; - mvi NO_IDENT jmp set_seqint; -p_data_okay: + test SEQ_FLAGS,NOT_IDENTIFIED|NO_CDB_SENT jz p_data_allowed; + mvi PROTO_VIOLATION call set_seqint; +p_data_allowed: if ((ahc->features & AHC_ULTRA2) != 0) { mvi DMAPARAMS, PRELOADEN|SCSIEN|HDMAEN; } else { @@ -1367,8 +1367,8 @@ if ((ahc->flags & AHC_INITIATORROLE) != 0) { * Command phase. Set up the DMA registers and let 'er rip. */ p_command: - test SEQ_FLAGS,IDENTIFY_SEEN jnz p_command_okay; - mvi NO_IDENT jmp set_seqint; + test SEQ_FLAGS, NOT_IDENTIFIED jz p_command_okay; + mvi PROTO_VIOLATION call set_seqint; p_command_okay: if ((ahc->features & AHC_ULTRA2) != 0) { @@ -1400,7 +1400,7 @@ p_command_from_host: } mvi DFCNTRL, (SCSIEN|SDMAEN|HDMAEN|DIRECTION|FIFORESET); } - jmp p_command_loop; + jmp p_command_xfer; p_command_embedded: /* * The data fifo seems to require 4 byte aligned @@ -1438,24 +1438,28 @@ p_command_embedded: call copy_to_fifo_6; or DFCNTRL, FIFOFLUSH; } -p_command_loop: +p_command_xfer: + and SEQ_FLAGS, ~NO_CDB_SENT; if ((ahc->features & AHC_DT) == 0) { test SSTAT0, SDONE jnz . + 2; - test SSTAT1, PHASEMIS jz p_command_loop; + test SSTAT1, PHASEMIS jz . - 1; /* * Wait for our ACK to go-away on it's own * instead of being killed by SCSIEN getting cleared. */ test SCSISIGI, ACKI jnz .; } else { - test DFCNTRL, SCSIEN jnz p_command_loop; + test DFCNTRL, SCSIEN jnz .; } + test SSTAT0, SDONE jnz p_command_successful; + /* + * Don't allow a data phase if the command + * was not fully transferred. + */ + or SEQ_FLAGS, NO_CDB_SENT; +p_command_successful: and DFCNTRL, ~(SCSIEN|SDMAEN|HDMAEN); test DFCNTRL, (SCSIEN|SDMAEN|HDMAEN) jnz .; - if ((ahc->features & AHC_ULTRA2) != 0) { - /* Drop any residual from the S/G Preload queue */ - or SXFRCTL0, CLRSTCNT; - } jmp ITloop; /* @@ -1463,10 +1467,10 @@ p_command_loop: * and store it into the SCB. */ p_status: - test SEQ_FLAGS,IDENTIFY_SEEN jnz p_status_okay; - mvi NO_IDENT jmp set_seqint; + test SEQ_FLAGS, NOT_IDENTIFIED jnz mesgin_proto_violation; p_status_okay: mov SCB_SCSI_STATUS, SCSIDATL; + or SCB_CONTROL, STATUS_RCVD; jmp ITloop; /* @@ -1587,13 +1591,15 @@ if ((ahc->features & AHC_WIDE) != 0) { jmp mesgin_done; } +mesgin_proto_violation: + mvi PROTO_VIOLATION call set_seqint; + jmp mesgin_done; mesgin_reject: mvi MSG_MESSAGE_REJECT call mk_mesg; mesgin_done: mov NONE,SCSIDATL; /*dummy read from latch to ACK*/ jmp ITloop; -mesgin_complete: /* * We received a "command complete" message. Put the SCB_TAG into the QOUTFIFO, * and trigger a completion interrupt. Before doing so, check to see if there @@ -1606,27 +1612,49 @@ mesgin_complete: * it to the QINFIFO and tell us not to post to the QOUTFIFO by setting * RETURN_1 to SEND_SENSE. */ +mesgin_complete: -/* - * If ATN is raised, we still want to give the target a message. - * Perhaps there was a parity error on this last message byte. - * Either way, the target should take us to message out phase - * and then attempt to complete the command again. We should use a - * critical section here to guard against a timeout triggering - * for this command and setting ATN while we are still processing - * the completion. + /* + * If ATN is raised, we still want to give the target a message. + * Perhaps there was a parity error on this last message byte. + * Either way, the target should take us to message out phase + * and then attempt to complete the command again. We should use a + * critical section here to guard against a timeout triggering + * for this command and setting ATN while we are still processing + * the completion. test SCSISIGI, ATNI jnz mesgin_done; - */ + */ -/* - * See if we attempted to deliver a message but the target ingnored us. - */ + /* + * If we are identified and have successfully sent the CDB, + * any status will do. Optimize this fast path. + */ + test SCB_CONTROL, STATUS_RCVD jz mesgin_proto_violation; + test SEQ_FLAGS, NOT_IDENTIFIED|NO_CDB_SENT jz complete_accepted; + + /* + * If the target never sent an identify message but instead went + * to mesgin to give an invalid message, let the host abort us. + */ + test SEQ_FLAGS, NOT_IDENTIFIED jnz mesgin_proto_violation; + + /* + * If we recevied good status but never successfully sent the + * cdb, abort the command. + */ + test SCB_SCSI_STATUS,0xff jnz complete_accepted; + test SEQ_FLAGS, NO_CDB_SENT jnz mesgin_proto_violation; + +complete_accepted: + /* + * See if we attempted to deliver a message but the target ingnored us. + */ test SCB_CONTROL, MK_MESSAGE jz . + 2; mvi MKMSG_FAILED call set_seqint; -/* - * Check for residuals - */ + /* + * Check for residuals + */ test SCB_SGPTR, SG_LIST_NULL jnz check_status;/* No xfer */ test SCB_SGPTR, SG_FULL_RESID jnz upload_scb;/* Never xfered */ test SCB_RESIDUAL_SGPTR, SG_LIST_NULL jz upload_scb; @@ -1679,7 +1707,8 @@ mesgin_disconnect: * XXX - Wait for more testing. test SCSISIGI, ATNI jnz mesgin_done; */ - + test SEQ_FLAGS, NOT_IDENTIFIED|NO_CDB_SENT + jnz mesgin_proto_violation; or SCB_CONTROL,DISCONNECTED; if ((ahc->flags & AHC_PAGESCBS) != 0) { call add_scb_to_disc_list; @@ -1747,7 +1776,8 @@ mesgin_sdptrs_full: * Restore pointers message? Data pointers are recopied from the * SCB anytime we enter a data phase for the first time, so all * we need to do is clear the DPHASE flag and let the data phase - * code do the rest. + * code do the rest. We also reset/reallocate the FIFO to make + * sure we have a clean start for the next data or command phase. */ mesgin_rdptrs: and SEQ_FLAGS, ~DPHASE; /* @@ -1755,6 +1785,7 @@ mesgin_rdptrs: * the next time through * the dataphase. */ + or SXFRCTL0, CLRSTCNT|CLRCHN; jmp mesgin_done; /* @@ -1903,7 +1934,7 @@ setup_SCB_id_lun_okay: mov SCBPTR, A; } setup_SCB_tagged: - mvi SEQ_FLAGS,IDENTIFY_SEEN; /* make note of IDENTIFY */ + clr SEQ_FLAGS; /* make note of IDENTIFY */ call set_transfer_settings; /* See if the host wants to send a message upon reconnection */ test SCB_CONTROL, MK_MESSAGE jz mesgin_done; |
