diff options
Diffstat (limited to 'sys/dev/aic7xxx')
| -rw-r--r-- | sys/dev/aic7xxx/aic79xx.c | 269 | ||||
| -rw-r--r-- | sys/dev/aic7xxx/aic79xx.h | 2 | ||||
| -rw-r--r-- | sys/dev/aic7xxx/aic79xx.reg | 27 | ||||
| -rw-r--r-- | sys/dev/aic7xxx/aic79xx.seq | 141 | ||||
| -rw-r--r-- | sys/dev/aic7xxx/aic79xx_inline.h | 5 | ||||
| -rw-r--r-- | sys/dev/aic7xxx/aic79xx_osm.c | 21 | ||||
| -rw-r--r-- | sys/dev/aic7xxx/aic79xx_pci.c | 3 |
7 files changed, 358 insertions, 110 deletions
diff --git a/sys/dev/aic7xxx/aic79xx.c b/sys/dev/aic7xxx/aic79xx.c index 258cf19..1f3b209 100644 --- a/sys/dev/aic7xxx/aic79xx.c +++ b/sys/dev/aic7xxx/aic79xx.c @@ -1,7 +1,7 @@ /* * Core routines and tables shareable across OS platforms. * - * Copyright (c) 1994-2002 Justin T. Gibbs. + * Copyright (c) 1994-2002, 2004 Justin T. Gibbs. * Copyright (c) 2000-2003 Adaptec Inc. * All rights reserved. * @@ -202,7 +202,8 @@ static int ahd_search_scb_list(struct ahd_softc *ahd, int target, char channel, int lun, u_int tag, role_t role, uint32_t status, ahd_search_action action, - u_int *list_head, u_int tid); + u_int *list_head, u_int *list_tail, + u_int tid); static void ahd_stitch_tid_list(struct ahd_softc *ahd, u_int tid_prev, u_int tid_cur, u_int tid_next); @@ -1668,7 +1669,8 @@ ahd_handle_scsiint(struct ahd_softc *ahd, u_int intstat) * so just clear the error. */ ahd_outb(ahd, CLRLQIINT1, CLRLQICRCI_NLQ); - } else if ((status & BUSFREE) != 0) { + } else if ((status & BUSFREE) != 0 + || (lqistat1 & LQOBUSFREE) != 0) { u_int lqostat1; int restart; int clear_fifo; @@ -2033,10 +2035,6 @@ ahd_handle_pkt_busfree(struct ahd_softc *ahd, u_int busfreetime) u_int waiting_t; u_int next; - if ((busfreetime & BUSFREE_LQO) == 0) - printf("%s: Warning, BUSFREE time is 0x%x. " - "Expected BUSFREE_LQO.\n", - ahd_name(ahd), busfreetime); /* * The LQO manager detected an unexpected busfree * either: @@ -2259,8 +2257,14 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd) struct ahd_tmode_tstate *tstate; /* - * PPR Rejected. Try non-ppr negotiation - * and retry command. + * PPR Rejected. + * + * If the previous negotiation was packetized, + * this could be because the device has been + * reset without our knowledge. Force our + * current negotiation to async and retry the + * negotiation. Otherwise retry the command + * with non-ppr negotiation. */ #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) @@ -2269,11 +2273,34 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd) tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, devinfo.our_scsiid, devinfo.target, &tstate); - tinfo->curr.transport_version = 2; - tinfo->goal.transport_version = 2; - tinfo->goal.ppr_options = 0; - ahd_qinfifo_requeue_tail(ahd, scb); - printerror = 0; + if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ)!=0) { + ahd_set_width(ahd, &devinfo, + MSG_EXT_WDTR_BUS_8_BIT, + AHD_TRANS_CUR, + /*paused*/TRUE); + ahd_set_syncrate(ahd, &devinfo, + /*period*/0, /*offset*/0, + /*ppr_options*/0, + AHD_TRANS_CUR, + /*paused*/TRUE); + /* + * The expect PPR busfree handler below + * will effect the retry and necessary + * abort. + */ + } else { + tinfo->curr.transport_version = 2; + tinfo->goal.transport_version = 2; + tinfo->goal.ppr_options = 0; + /* + * Remove any SCBs in the waiting for selection + * queue that may also be for this target so + * that command ordering is preserved. + */ + ahd_freeze_devq(ahd, scb); + ahd_qinfifo_requeue_tail(ahd, scb); + printerror = 0; + } } else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_WDTR, FALSE) && ppr_busfree == 0) { /* @@ -2288,6 +2315,12 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd) MSG_EXT_WDTR_BUS_8_BIT, AHD_TRANS_CUR|AHD_TRANS_GOAL, /*paused*/TRUE); + /* + * Remove any SCBs in the waiting for selection + * queue that may also be for this target so that + * command ordering is preserved. + */ + ahd_freeze_devq(ahd, scb); ahd_qinfifo_requeue_tail(ahd, scb); printerror = 0; } else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_SDTR, FALSE) @@ -2305,6 +2338,12 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd) /*ppr_options*/0, AHD_TRANS_CUR|AHD_TRANS_GOAL, /*paused*/TRUE); + /* + * Remove any SCBs in the waiting for selection + * queue that may also be for this target so that + * command ordering is preserved. + */ + ahd_freeze_devq(ahd, scb); ahd_qinfifo_requeue_tail(ahd, scb); printerror = 0; } else if ((ahd->msg_flags & MSG_FLAG_EXPECT_IDE_BUSFREE) != 0 @@ -2377,14 +2416,14 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd) */ printf("%s: ", ahd_name(ahd)); } - if (lastphase != P_BUSFREE) - ahd_force_renegotiation(ahd, &devinfo); printf("Unexpected busfree %s, %d SCBs aborted, " "PRGMCNT == 0x%x\n", ahd_lookup_phase_entry(lastphase)->phasemsg, aborted, ahd_inw(ahd, PRGMCNT)); ahd_dump_card_state(ahd); + if (lastphase != P_BUSFREE) + ahd_force_renegotiation(ahd, &devinfo); } /* Always restart the sequencer. */ return (1); @@ -3323,7 +3362,6 @@ ahd_update_pending_scbs(struct ahd_softc *ahd) { struct scb *pending_scb; int pending_scb_count; - u_int scb_tag; int paused; u_int saved_scbptr; ahd_mode_state saved_modes; @@ -3341,7 +3379,6 @@ ahd_update_pending_scbs(struct ahd_softc *ahd) pending_scb_count = 0; LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) { struct ahd_devinfo devinfo; - struct hardware_scb *pending_hscb; struct ahd_initiator_tinfo *tinfo; struct ahd_tmode_tstate *tstate; @@ -3349,11 +3386,10 @@ ahd_update_pending_scbs(struct ahd_softc *ahd) tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, devinfo.our_scsiid, devinfo.target, &tstate); - pending_hscb = pending_scb->hscb; if ((tstate->auto_negotiate & devinfo.target_mask) == 0 && (pending_scb->flags & SCB_AUTO_NEGOTIATE) != 0) { pending_scb->flags &= ~SCB_AUTO_NEGOTIATE; - pending_hscb->control &= ~MK_MESSAGE; + pending_scb->hscb->control &= ~MK_MESSAGE; } ahd_sync_scb(ahd, pending_scb, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); @@ -3385,18 +3421,15 @@ ahd_update_pending_scbs(struct ahd_softc *ahd) ahd_outb(ahd, SCSISEQ0, ahd_inb(ahd, SCSISEQ0) & ~ENSELO); saved_scbptr = ahd_get_scbptr(ahd); /* Ensure that the hscbs down on the card match the new information */ - for (scb_tag = 0; scb_tag < ahd->scb_data.maxhscbs; scb_tag++) { - struct hardware_scb *pending_hscb; + LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) { + u_int scb_tag; u_int control; - pending_scb = ahd_lookup_scb(ahd, scb_tag); - if (pending_scb == NULL) - continue; + scb_tag = SCB_GET_TAG(pending_scb); ahd_set_scbptr(ahd, scb_tag); - pending_hscb = pending_scb->hscb; control = ahd_inb_scbram(ahd, SCB_CONTROL); control &= ~MK_MESSAGE; - control |= pending_hscb->control & MK_MESSAGE; + control |= pending_scb->hscb->control & MK_MESSAGE; ahd_outb(ahd, SCB_CONTROL, control); } ahd_set_scbptr(ahd, saved_scbptr); @@ -6578,13 +6611,14 @@ ahd_chip_init(struct ahd_softc *ahd) | ENLQIOVERI_LQ|ENLQIOVERI_NLQ); ahd_outb(ahd, LQOMODE0, ENLQOATNLQ|ENLQOATNPKT|ENLQOTCRC); /* - * An interrupt from LQOBUSFREE is made redundant by the - * BUSFREE interrupt. We choose to have the sequencer catch - * LQOPHCHGINPKT errors manually for the command phase at the - * start of a packetized selection case. - ahd_outb(ahd, LQOMODE1, ENLQOBUSFREE|ENLQOPHACHGINPKT); + * We choose to have the sequencer catch LQOPHCHGINPKT errors + * manually for the command phase at the start of a packetized + * selection case. ENLQOBUSFREE should be made redundant by + * the BUSFREE interrupt, but it seems that some LQOBUSFREE + * events fail to assert the BUSFREE interrupt so we must + * also enable LQOBUSFREE interrupts. */ - ahd_outb(ahd, LQOMODE1, 0); + ahd_outb(ahd, LQOMODE1, ENLQOBUSFREE); /* * Setup sequencer interrupt handlers. @@ -6695,6 +6729,8 @@ ahd_chip_init(struct ahd_softc *ahd) /* We don't have any waiting selections */ ahd_outw(ahd, WAITING_TID_HEAD, SCB_LIST_NULL); ahd_outw(ahd, WAITING_TID_TAIL, SCB_LIST_NULL); + ahd_outw(ahd, MK_MESSAGE_SCB, SCB_LIST_NULL); + ahd_outw(ahd, MK_MESSAGE_SCSIID, 0xFF); for (i = 0; i < AHD_NUM_TARGETS; i++) ahd_outw(ahd, WAITING_SCB_TAILS + (2 * i), SCB_LIST_NULL); @@ -7338,12 +7374,28 @@ ahd_reset_cmds_pending(struct ahd_softc *ahd) ahd->flags &= ~AHD_UPDATE_PEND_CMDS; } +void +ahd_done_with_status(struct ahd_softc *ahd, struct scb *scb, uint32_t status) +{ + cam_status ostat; + cam_status cstat; + + ostat = aic_get_transaction_status(scb); + if (ostat == CAM_REQ_INPROG) + aic_set_transaction_status(scb, status); + cstat = aic_get_transaction_status(scb); + if (cstat != CAM_REQ_CMP) + aic_freeze_scb(scb); + ahd_done(ahd, scb); +} + int ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel, int lun, u_int tag, role_t role, uint32_t status, ahd_search_action action) { struct scb *scb; + struct scb *mk_msg_scb; struct scb *prev_scb; ahd_mode_state saved_modes; u_int qinstart; @@ -7352,6 +7404,7 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel, u_int tid_next; u_int tid_prev; u_int scbid; + u_int seq_flags2; u_int savedscbptr; uint32_t busaddr; int found; @@ -7407,23 +7460,10 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel, found++; switch (action) { case SEARCH_COMPLETE: - { - cam_status ostat; - cam_status cstat; - - ostat = aic_get_transaction_status(scb); - if (ostat == CAM_REQ_INPROG) - aic_set_transaction_status(scb, - status); - cstat = aic_get_transaction_status(scb); - if (cstat != CAM_REQ_CMP) - aic_freeze_scb(scb); if ((scb->flags & SCB_ACTIVE) == 0) printf("Inactive SCB in qinfifo\n"); - ahd_done(ahd, scb); - + ahd_done_with_status(ahd, scb, status); /* FALLTHROUGH */ - } case SEARCH_REMOVE: break; case SEARCH_PRINT: @@ -7453,21 +7493,24 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel, * looking for matches. */ ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); + seq_flags2 = ahd_inb(ahd, SEQ_FLAGS2); + if ((seq_flags2 & PENDING_MK_MESSAGE) != 0) { + scbid = ahd_inw(ahd, MK_MESSAGE_SCB); + mk_msg_scb = ahd_lookup_scb(ahd, scbid); + } else + mk_msg_scb = NULL; savedscbptr = ahd_get_scbptr(ahd); tid_next = ahd_inw(ahd, WAITING_TID_HEAD); tid_prev = SCB_LIST_NULL; targets = 0; for (scbid = tid_next; !SCBID_IS_NULL(scbid); scbid = tid_next) { u_int tid_head; + u_int tid_tail; - /* - * We limit based on the number of SCBs since - * MK_MESSAGE SCBs are not in the per-tid lists. - */ targets++; - if (targets > AHD_SCB_MAX) { + if (targets > AHD_NUM_TARGETS) panic("TID LIST LOOP"); - } + if (scbid >= ahd->scb_data.numscbs) { printf("%s: Waiting TID List inconsistency. " "SCB index == 0x%x, yet numscbs == 0x%x.", @@ -7497,8 +7540,71 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel, tid_head = scbid; found += ahd_search_scb_list(ahd, target, channel, lun, tag, role, status, - action, &tid_head, + action, &tid_head, &tid_tail, SCB_GET_TARGET(ahd, scb)); + /* + * Check any MK_MESSAGE SCB that is still waiting to + * enter this target's waiting for selection queue. + */ + if (mk_msg_scb != NULL + && ahd_match_scb(ahd, mk_msg_scb, target, channel, + lun, tag, role)) { + + /* + * We found an scb that needs to be acted on. + */ + found++; + switch (action) { + case SEARCH_COMPLETE: + if ((mk_msg_scb->flags & SCB_ACTIVE) == 0) + printf("Inactive SCB pending MK_MSG\n"); + ahd_done_with_status(ahd, mk_msg_scb, status); + /* FALLTHROUGH */ + case SEARCH_REMOVE: + { + u_int tail_offset; + + printf("Removing MK_MSG scb\n"); + + /* + * Reset our tail to the tail of the + * main per-target list. + */ + tail_offset = WAITING_SCB_TAILS + + (2 * SCB_GET_TARGET(ahd, mk_msg_scb)); + ahd_outw(ahd, tail_offset, tid_tail); + + seq_flags2 &= ~PENDING_MK_MESSAGE; + ahd_outb(ahd, SEQ_FLAGS2, seq_flags2); + ahd_outw(ahd, CMDS_PENDING, + ahd_inw(ahd, CMDS_PENDING)-1); + mk_msg_scb = NULL; + break; + } + case SEARCH_PRINT: + printf(" 0x%x", SCB_GET_TAG(scb)); + /* FALLTHROUGH */ + case SEARCH_COUNT: + break; + } + } + + if (mk_msg_scb != NULL + && SCBID_IS_NULL(tid_head) + && ahd_match_scb(ahd, scb, target, channel, CAM_LUN_WILDCARD, + SCB_LIST_NULL, ROLE_UNKNOWN)) { + + /* + * When removing the last SCB for a target + * queue with a pending MK_MESSAGE scb, we + * must queue the MK_MESSAGE scb. + */ + printf("Queueing mk_msg_scb\n"); + tid_head = ahd_inw(ahd, MK_MESSAGE_SCB); + seq_flags2 &= ~PENDING_MK_MESSAGE; + ahd_outb(ahd, SEQ_FLAGS2, seq_flags2); + mk_msg_scb = NULL; + } if (tid_head != scbid) ahd_stitch_tid_list(ahd, tid_prev, tid_head, tid_next); if (!SCBID_IS_NULL(tid_head)) @@ -7506,6 +7612,8 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel, if (action == SEARCH_PRINT) printf(")\n"); } + + /* Restore saved state. */ ahd_set_scbptr(ahd, savedscbptr); ahd_restore_modes(ahd, saved_modes); return (found); @@ -7514,7 +7622,8 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel, static int ahd_search_scb_list(struct ahd_softc *ahd, int target, char channel, int lun, u_int tag, role_t role, uint32_t status, - ahd_search_action action, u_int *list_head, u_int tid) + ahd_search_action action, u_int *list_head, + u_int *list_tail, u_int tid) { struct scb *scb; u_int scbid; @@ -7526,6 +7635,7 @@ ahd_search_scb_list(struct ahd_softc *ahd, int target, char channel, found = 0; prev = SCB_LIST_NULL; next = *list_head; + *list_tail = SCB_LIST_NULL; for (scbid = next; !SCBID_IS_NULL(scbid); scbid = next) { if (scbid >= ahd->scb_data.numscbs) { printf("%s:SCB List inconsistency. " @@ -7541,6 +7651,7 @@ ahd_search_scb_list(struct ahd_softc *ahd, int target, char channel, panic("Waiting List traversal\n"); } ahd_set_scbptr(ahd, scbid); + *list_tail = scbid; next = ahd_inw_scbram(ahd, SCB_NEXT); if (ahd_match_scb(ahd, scb, target, channel, lun, SCB_LIST_NULL, role) == 0) { @@ -7550,24 +7661,14 @@ ahd_search_scb_list(struct ahd_softc *ahd, int target, char channel, found++; switch (action) { case SEARCH_COMPLETE: - { - cam_status ostat; - cam_status cstat; - - ostat = aic_get_transaction_status(scb); - if (ostat == CAM_REQ_INPROG) - aic_set_transaction_status(scb, status); - cstat = aic_get_transaction_status(scb); - if (cstat != CAM_REQ_CMP) - aic_freeze_scb(scb); if ((scb->flags & SCB_ACTIVE) == 0) printf("Inactive SCB in Waiting List\n"); - ahd_done(ahd, scb); + ahd_done_with_status(ahd, scb, status); /* FALLTHROUGH */ - } case SEARCH_REMOVE: ahd_rem_wscb(ahd, scbid, prev, next, tid); - if (prev == SCB_LIST_NULL) + *list_tail = prev; + if (SCBID_IS_NULL(prev)) *list_head = next; break; case SEARCH_PRINT: @@ -7636,14 +7737,17 @@ ahd_rem_wscb(struct ahd_softc *ahd, u_int scbid, } /* - * SCBs that had MK_MESSAGE set in them will not - * be queued to the per-target lists, so don't - * blindly clear the tail pointer. + * SCBs that have MK_MESSAGE set in them may + * cause the tail pointer to be updated without + * setting the next pointer of the previous tail. + * Only clear the tail if the removed SCB was + * the tail. */ tail_offset = WAITING_SCB_TAILS + (2 * tid); if (SCBID_IS_NULL(next) && ahd_inw(ahd, tail_offset) == scbid) ahd_outw(ahd, tail_offset, prev); + ahd_add_scb_to_free_list(ahd, scbid); return (next); } @@ -8900,6 +9004,9 @@ ahd_dump_card_state(struct ahd_softc *ahd) * Mode independent registers. */ cur_col = 0; + ahd_intstat_print(ahd_inb(ahd, INTSTAT), &cur_col, 50); + ahd_seloid_print(ahd_inb(ahd, SELOID), &cur_col, 50); + ahd_selid_print(ahd_inb(ahd, SELID), &cur_col, 50); ahd_hs_mailbox_print(ahd_inb(ahd, LOCAL_HS_MAILBOX), &cur_col, 50); ahd_intctl_print(ahd_inb(ahd, INTCTL), &cur_col, 50); ahd_seqintstat_print(ahd_inb(ahd, SEQINTSTAT), &cur_col, 50); @@ -8915,6 +9022,12 @@ ahd_dump_card_state(struct ahd_softc *ahd) ahd_seqintctl_print(ahd_inb(ahd, SEQINTCTL), &cur_col, 50); ahd_seq_flags_print(ahd_inb(ahd, SEQ_FLAGS), &cur_col, 50); ahd_seq_flags2_print(ahd_inb(ahd, SEQ_FLAGS2), &cur_col, 50); + ahd_qfreeze_count_print(ahd_inw(ahd, QFREEZE_COUNT), &cur_col, 50); + ahd_kernel_qfreeze_count_print(ahd_inw(ahd, KERNEL_QFREEZE_COUNT), + &cur_col, 50); + ahd_mk_message_scb_print(ahd_inw(ahd, MK_MESSAGE_SCB), &cur_col, 50); + ahd_mk_message_scsiid_print(ahd_inb(ahd, MK_MESSAGE_SCSIID), + &cur_col, 50); ahd_sstat0_print(ahd_inb(ahd, SSTAT0), &cur_col, 50); ahd_sstat1_print(ahd_inb(ahd, SSTAT1), &cur_col, 50); ahd_sstat2_print(ahd_inb(ahd, SSTAT2), &cur_col, 50); @@ -9022,7 +9135,7 @@ ahd_dump_card_state(struct ahd_softc *ahd) ahd_set_modes(ahd, AHD_MODE_DFF0 + i, AHD_MODE_DFF0 + i); fifo_scbptr = ahd_get_scbptr(ahd); - printf("\n%s: FIFO%d %s, LONGJMP == 0x%x, SCB 0x%x\n", + printf("\n\n%s: FIFO%d %s, LONGJMP == 0x%x, SCB 0x%x\n", ahd_name(ahd), i, (dffstat & (FIFO0FREE << i)) ? "Free" : "Active", ahd_inw(ahd, LONGJMP_ADDR), fifo_scbptr); @@ -9077,6 +9190,9 @@ ahd_dump_card_state(struct ahd_softc *ahd) printf("%s: OS_SPACE_CNT = 0x%x MAXCMDCNT = 0x%x\n", ahd_name(ahd), ahd_inb(ahd, OS_SPACE_CNT), ahd_inb(ahd, MAXCMDCNT)); + printf("%s: SAVED_SCSIID = 0x%x SAVED_LUN = 0x%x\n", + ahd_name(ahd), ahd_inb(ahd, SAVED_SCSIID), + ahd_inb(ahd, SAVED_LUN)); ahd_simode0_print(ahd_inb(ahd, SIMODE0), &cur_col, 50); printf("\n"); ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN); @@ -9185,6 +9301,11 @@ ahd_recover_commands(struct ahd_softc *ahd) * interrupt handler has yet to see. */ was_paused = ahd_is_paused(ahd); + + printf("%s: Recovery Initiated - Card was %spaused\n", ahd_name(ahd), + was_paused ? "" : "not "); + ahd_dump_card_state(ahd); + ahd_pause_and_flushwork(ahd); if (LIST_EMPTY(&ahd->timedout_scbs) != 0) { @@ -9203,10 +9324,6 @@ ahd_recover_commands(struct ahd_softc *ahd) return; } - printf("%s: Recovery Initiated - Card was %spaused\n", ahd_name(ahd), - was_paused ? "" : "not "); - ahd_dump_card_state(ahd); - /* * Determine identity of SCB acting on the bus. * This test only catches non-packetized transactions. diff --git a/sys/dev/aic7xxx/aic79xx.h b/sys/dev/aic7xxx/aic79xx.h index 26c9100..292458c 100644 --- a/sys/dev/aic7xxx/aic79xx.h +++ b/sys/dev/aic7xxx/aic79xx.h @@ -1438,6 +1438,8 @@ typedef enum { SEARCH_REMOVE, SEARCH_PRINT } ahd_search_action; +void ahd_done_with_status(struct ahd_softc *ahd, + struct scb *scb, uint32_t status); int ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel, int lun, u_int tag, role_t role, uint32_t status, diff --git a/sys/dev/aic7xxx/aic79xx.reg b/sys/dev/aic7xxx/aic79xx.reg index 3a32047..e3cc7c5 100644 --- a/sys/dev/aic7xxx/aic79xx.reg +++ b/sys/dev/aic7xxx/aic79xx.reg @@ -1,7 +1,7 @@ /* * Aic79xx register and scratch ram definitions. * - * Copyright (c) 1994-2001 Justin T. Gibbs. + * Copyright (c) 1994-2001, 2004 Justin T. Gibbs. * Copyright (c) 2000-2002 Adaptec Inc. * All rights reserved. * @@ -3715,8 +3715,9 @@ scratch_ram { SEQ_FLAGS2 { size 1 - field TARGET_MSG_PENDING 0x02 - field SELECTOUT_QFROZEN 0x04 + field PENDING_MK_MESSAGE 0x01 + field TARGET_MSG_PENDING 0x02 + field SELECTOUT_QFROZEN 0x04 } ALLOCFIFO_SCBPTR { @@ -3777,6 +3778,26 @@ scratch_ram { CMDSIZE_TABLE { size 8 } + /* + * When an SCB with the MK_MESSAGE flag is + * queued to the controller, it cannot enter + * the waiting for selection list until the + * selections for any previously queued + * commands to that target complete. During + * the wait, the MK_MESSAGE SCB is queued + * here. + */ + MK_MESSAGE_SCB { + size 2 + } + /* + * Saved SCSIID of MK_MESSAGE_SCB to avoid + * an extra SCBPTR operation when deciding + * if the MK_MESSAGE_SCB can be run. + */ + MK_MESSAGE_SCSIID { + size 1 + } } /************************* Hardware SCB Definition ****************************/ diff --git a/sys/dev/aic7xxx/aic79xx.seq b/sys/dev/aic7xxx/aic79xx.seq index bef1f9d..56ac755 100644 --- a/sys/dev/aic7xxx/aic79xx.seq +++ b/sys/dev/aic7xxx/aic79xx.seq @@ -1,7 +1,7 @@ /* * Adaptec U320 device driver firmware for Linux and FreeBSD. * - * Copyright (c) 1994-2001 Justin T. Gibbs. + * Copyright (c) 1994-2001, 2004 Justin T. Gibbs. * Copyright (c) 2000-2002 Adaptec Inc. * All rights reserved. * @@ -110,10 +110,8 @@ check_waiting_list: * one last time. */ test SSTAT0, SELDO jnz select_out; -END_CRITICAL; call start_selection; idle_loop_checkbus: -BEGIN_CRITICAL; test SSTAT0, SELDO jnz select_out; END_CRITICAL; test SSTAT0, SELDI jnz select_in; @@ -294,7 +292,6 @@ fetch_new_scb_inprog: test CCSCBCTL, ARRDONE jz return; fetch_new_scb_done: and CCSCBCTL, ~(CCARREN|CCSCBEN); - bmov REG0, SCBPTR, 2; clr A; add CMDS_PENDING, 1; adc CMDS_PENDING[1], A; @@ -316,43 +313,117 @@ fetch_new_scb_done: clr SCB_FIFO_USE_COUNT; /* Update the next SCB address to download. */ bmov NEXT_QUEUED_SCB_ADDR, SCB_NEXT_SCB_BUSADDR, 4; + /* + * NULL out the SCB links since these fields + * occupy the same location as SCB_NEXT_SCB_BUSADDR. + */ mvi SCB_NEXT[1], SCB_LIST_NULL; mvi SCB_NEXT2[1], SCB_LIST_NULL; /* Increment our position in the QINFIFO. */ mov NONE, SNSCB_QOFF; + /* - * SCBs that want to send messages are always - * queued independently. This ensures that they - * are at the head of the SCB list to select out - * to a target and we will see the MK_MESSAGE flag. + * Save SCBID of this SCB in REG0 since + * SCBPTR will be clobbered during target + * list updates. We also record the SCB's + * flags so that we can refer to them even + * after SCBPTR has been changed. + */ + bmov REG0, SCBPTR, 2; + mov A, SCB_CONTROL; + + /* + * Find the tail SCB of the execution queue + * for this target. */ - test SCB_CONTROL, MK_MESSAGE jnz first_new_target_scb; shr SINDEX, 3, SCB_SCSIID; and SINDEX, ~0x1; mvi SINDEX[1], (WAITING_SCB_TAILS >> 8); bmov DINDEX, SINDEX, 2; bmov SCBPTR, SINDIR, 2; + + /* + * Update the tail to point to the new SCB. + */ bmov DINDIR, REG0, 2; + + /* + * If the queue was empty, queue this SCB as + * the first for this target. + */ cmp SCBPTR[1], SCB_LIST_NULL je first_new_target_scb; + + /* + * SCBs that want to send messages must always be + * at the head of their per-target queue so that + * ATN can be asserted even if the current + * negotiation agreement is packetized. If the + * target queue is empty, the SCB can be queued + * immediately. If the queue is not empty, we must + * wait for it to empty before entering this SCB + * into the waiting for selection queue. Otherwise + * our batching and round-robin selection scheme + * could allow commands to be queued out of order. + * To simplify the implementation, we stop pulling + * new commands from the host until the MK_MESSAGE + * SCB can be queued to the waiting for selection + * list. + */ + test A, MK_MESSAGE jz batch_scb; + + /* + * If the last SCB is also a MK_MESSAGE SCB, then + * order is preserved even if we batch. + */ + test SCB_CONTROL, MK_MESSAGE jz batch_scb; + + /* + * Defer this SCB and stop fetching new SCBs until + * it can be queued. Since the SCB_SCSIID of the + * tail SCB must be the same as that of the newly + * queued SCB, there is no need to restore the SCBID + * here. + */ + or SEQ_FLAGS2, PENDING_MK_MESSAGE; + bmov MK_MESSAGE_SCB, REG0, 2; + mov MK_MESSAGE_SCSIID, SCB_SCSIID ret; + +batch_scb: + /* + * Otherwise just update the previous tail SCB to + * point to the new tail. + */ bmov SCB_NEXT, REG0, 2 ret; + first_new_target_scb: + /* + * Append SCB to the tail of the waiting for + * selection list. + */ cmp WAITING_TID_HEAD[1], SCB_LIST_NULL je first_new_scb; bmov SCBPTR, WAITING_TID_TAIL, 2; bmov SCB_NEXT2, REG0, 2; bmov WAITING_TID_TAIL, REG0, 2 ret; first_new_scb: + /* + * Whole list is empty, so the head of + * the list must be initialized too. + */ bmov WAITING_TID_HEAD, REG0, 2; bmov WAITING_TID_TAIL, REG0, 2 ret; END_CRITICAL; scbdma_idle: /* - * Give precedence to downloading new SCBs to execute - * unless select-outs are currently frozen. + * Don't bother downloading new SCBs to execute + * if select-outs are currently frozen or we have + * a MK_MESSAGE SCB waiting to enter the queue. */ - test SEQ_FLAGS2, SELECTOUT_QFROZEN jnz . + 2; + test SEQ_FLAGS2, SELECTOUT_QFROZEN|PENDING_MK_MESSAGE + jnz scbdma_no_new_scbs; BEGIN_CRITICAL; test QOFF_CTLSTA, NEW_SCB_AVAIL jnz fetch_new_scb; +scbdma_no_new_scbs: cmp COMPLETE_DMA_SCB_HEAD[1], SCB_LIST_NULL jne dma_complete_scb; cmp COMPLETE_SCB_HEAD[1], SCB_LIST_NULL je return; /* FALLTHROUGH */ @@ -671,27 +742,41 @@ curscb_ww_done: } /* - * Requeue any SCBs not sent, to the tail of the waiting Q. + * The whole list made it. Clear our tail pointer to indicate + * that the per-target selection queue is now empty. */ - cmp SCB_NEXT[1], SCB_LIST_NULL je select_out_list_done; + cmp SCB_NEXT[1], SCB_LIST_NULL je select_out_clear_tail; /* + * Requeue any SCBs not sent, to the tail of the waiting Q. * We know that neither the per-TID list nor the list of - * TIDs is empty. Use this knowledge to our advantage. + * TIDs is empty. Use this knowledge to our advantage and + * queue the remainder to the tail of the global execution + * queue. */ bmov REG0, SCB_NEXT, 2; +select_out_queue_remainder: bmov SCBPTR, WAITING_TID_TAIL, 2; bmov SCB_NEXT2, REG0, 2; bmov WAITING_TID_TAIL, REG0, 2; jmp select_out_inc_tid_q; -select_out_list_done: +select_out_clear_tail: + /* + * Queue any pending MK_MESSAGE SCB for this target now + * that the queue is empty. + */ + test SEQ_FLAGS2, PENDING_MK_MESSAGE jz select_out_no_mk_message_scb; + mov A, MK_MESSAGE_SCSIID; + cmp SCB_SCSIID, A jne select_out_no_mk_message_scb; + and SEQ_FLAGS2, ~PENDING_MK_MESSAGE; + bmov REG0, MK_MESSAGE_SCB, 2; + jmp select_out_queue_remainder; + +select_out_no_mk_message_scb: /* - * The whole list made it. Just clear our TID's tail pointer - * unless we were queued independently due to our need to - * send a message. + * Clear this target's execution tail and increment the queue. */ - test SCB_CONTROL, MK_MESSAGE jnz select_out_inc_tid_q; shr DINDEX, 3, SCB_SCSIID; or DINDEX, 1; /* Want only the second byte */ mvi DINDEX[1], ((WAITING_SCB_TAILS) >> 8); @@ -703,8 +788,8 @@ select_out_inc_tid_q: mvi WAITING_TID_TAIL[1], SCB_LIST_NULL; bmov SCBPTR, CURRSCB, 2; mvi CLRSINT0, CLRSELDO; - test LQOSTAT2, LQOPHACHGOUTPKT jnz unexpected_nonpkt_phase; - test LQOSTAT1, LQOPHACHGINPKT jnz unexpected_nonpkt_phase; + test LQOSTAT2, LQOPHACHGOUTPKT jnz unexpected_nonpkt_mode_cleared; + test LQOSTAT1, LQOPHACHGINPKT jnz unexpected_nonpkt_mode_cleared; /* * If this is a packetized connection, return to our @@ -2127,6 +2212,18 @@ SET_DST_MODE M_DFF0; mvi DFFSXFRCTL, CLRCHN; unexpected_nonpkt_mode_cleared: mvi CLRSINT2, CLRNONPACKREQ; + if ((ahd->bugs & AHD_BUSFREEREV_BUG) != 0) { + /* + * Test to ensure that the bus has not + * already gone free prior to clearing + * any stale busfree status. This avoids + * a window whereby a busfree just after + * a selection could be missed. + */ + test SCSISIGI, BSYI jz . + 2; + mvi CLRSINT1,CLRBUSFREE; + or SIMODE1, ENBUSFREE; + } test SCSIPHASE, ~(MSG_IN_PHASE|MSG_OUT_PHASE) jnz illegal_phase; SET_SEQINTCODE(ENTERING_NONPACK) jmp ITloop; diff --git a/sys/dev/aic7xxx/aic79xx_inline.h b/sys/dev/aic7xxx/aic79xx_inline.h index 009ff25..0498ab3 100644 --- a/sys/dev/aic7xxx/aic79xx_inline.h +++ b/sys/dev/aic7xxx/aic79xx_inline.h @@ -804,9 +804,10 @@ ahd_queue_scb(struct ahd_softc *ahd, struct scb *scb) uint64_t host_dataptr; host_dataptr = aic_le64toh(scb->hscb->dataptr); - printf("%s: Queueing SCB 0x%x bus addr 0x%x - 0x%x%x/0x%x\n", + printf("%s: Queueing SCB %d:0x%x bus addr 0x%x - 0x%x%x/0x%x\n", ahd_name(ahd), - SCB_GET_TAG(scb), aic_le32toh(scb->hscb->hscb_busaddr), + SCB_GET_TAG(scb), scb->hscb->scsiid, + aic_le32toh(scb->hscb->hscb_busaddr), (u_int)((host_dataptr >> 32) & 0xFFFFFFFF), (u_int)(host_dataptr & 0xFFFFFFFF), aic_le32toh(scb->hscb->datacnt)); diff --git a/sys/dev/aic7xxx/aic79xx_osm.c b/sys/dev/aic7xxx/aic79xx_osm.c index 921bae9..3ea6207 100644 --- a/sys/dev/aic7xxx/aic79xx_osm.c +++ b/sys/dev/aic7xxx/aic79xx_osm.c @@ -1,7 +1,7 @@ /* * Bus independent FreeBSD shim for the aic79xx based Adaptec SCSI controllers * - * Copyright (c) 1994-2002 Justin T. Gibbs. + * Copyright (c) 1994-2002, 2004 Justin T. Gibbs. * Copyright (c) 2001-2002 Adaptec Inc. * All rights reserved. * @@ -1555,7 +1555,7 @@ static moduledata_t ahd_mod = { static struct ahd_softc *ahd_ddb_softc; static int ahd_ddb_paused; static int ahd_ddb_paused_on_entry; -DB_COMMAND(ahd_set_unit, ahd_ddb_set_unit) +DB_COMMAND(ahd_sunit, ahd_ddb_sunit) { struct ahd_softc *list_ahd; @@ -1571,7 +1571,7 @@ DB_COMMAND(ahd_set_unit, ahd_ddb_set_unit) DB_COMMAND(ahd_pause, ahd_ddb_pause) { if (ahd_ddb_softc == NULL) { - db_error("Must set unit with ahd_set_unit first!\n"); + db_error("Must set unit with ahd_sunit first!\n"); return; } if (ahd_ddb_paused == 0) { @@ -1587,7 +1587,7 @@ DB_COMMAND(ahd_pause, ahd_ddb_pause) DB_COMMAND(ahd_unpause, ahd_ddb_unpause) { if (ahd_ddb_softc == NULL) { - db_error("Must set unit with ahd_set_unit first!\n"); + db_error("Must set unit with ahd_sunit first!\n"); return; } if (ahd_ddb_paused != 0) { @@ -1608,7 +1608,7 @@ DB_COMMAND(ahd_in, ahd_ddb_in) int size; if (ahd_ddb_softc == NULL) { - db_error("Must set unit with ahd_set_unit first!\n"); + db_error("Must set unit with ahd_sunit first!\n"); return; } if (have_addr == 0) @@ -1655,7 +1655,7 @@ DB_SET(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL) int size; if (ahd_ddb_softc == NULL) { - db_error("Must set unit with ahd_set_unit first!\n"); + db_error("Must set unit with ahd_sunit first!\n"); return; } @@ -1699,6 +1699,15 @@ DB_SET(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL) db_skip_to_eol(); } +DB_COMMAND(ahd_dump, ahd_ddb_dump) +{ + if (ahd_ddb_softc == NULL) { + db_error("Must set unit with ahd_sunit first!\n"); + return; + } + ahd_dump_card_state(ahd_ddb_softc); +} + #endif diff --git a/sys/dev/aic7xxx/aic79xx_pci.c b/sys/dev/aic7xxx/aic79xx_pci.c index afd4498..3fdfd92 100644 --- a/sys/dev/aic7xxx/aic79xx_pci.c +++ b/sys/dev/aic7xxx/aic79xx_pci.c @@ -996,7 +996,8 @@ ahd_aic790X_setup(struct ahd_softc *ahd) u_int devconfig1; ahd->features |= AHD_RTI|AHD_NEW_IOCELL_OPTS - | AHD_NEW_DFCNTRL_OPTS|AHD_FAST_CDB_DELIVERY; + | AHD_NEW_DFCNTRL_OPTS|AHD_FAST_CDB_DELIVERY + | AHD_BUSFREEREV_BUG; ahd->bugs |= AHD_LQOOVERRUN_BUG|AHD_EARLY_REQ_BUG; /* |
