Lines Matching +full:host +full:- +full:command
1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 1997-2003 Russell King
16 * ... my host specific data ...
20 * 30-08-1997 RMK Created
21 * 14-09-1997 RMK Started disconnect support
22 * 08-02-1998 RMK Corrected real DMA support
23 * 15-02-1998 RMK Started sync xfer support
24 * 06-04-1998 RMK Tightened conditions for printing incomplete
26 * 02-05-1998 RMK Added extra checks in fas216_reset
27 * 24-05-1998 RMK Fixed synchronous transfers with period >= 200ns
28 * 27-06-1998 RMK Changed asm/delay.h to linux/delay.h
29 * 26-08-1998 RMK Improved message support wrt MESSAGE_REJECT
30 * 02-04-2000 RMK Converted to use the new error handling, and
64 * > (1) Re-negotiation at every selection is not recommended, since a
109 level_mask |= -1; in fas216_log_setup()
143 unsigned int off = reg << info->scsi.io_shift; in fas216_readb()
144 return readb(info->scsi.io_base + off); in fas216_readb()
149 unsigned int off = reg << info->scsi.io_shift; in fas216_writeb()
150 writeb(val, info->scsi.io_base + off); in fas216_writeb()
177 prefix, SCp->ptr, SCp->this_residual, SCp->buffer, in print_SCp()
178 SCp->buffers_residual, suffix); in print_SCp()
191 printk(" { magic_start=%lX host=%p SCpnt=%p origSCpnt=%p\n", in fas216_dumpinfo()
192 info->magic_start, info->host, info->SCpnt, in fas216_dumpinfo()
193 info->origSCpnt); in fas216_dumpinfo()
195 info->scsi.io_shift, info->scsi.irq, in fas216_dumpinfo()
196 info->scsi.cfg[0], info->scsi.cfg[1], info->scsi.cfg[2], in fas216_dumpinfo()
197 info->scsi.cfg[3]); in fas216_dumpinfo()
199 info->scsi.type, info->scsi.phase); in fas216_dumpinfo()
200 print_SCp(&info->scsi.SCp, " SCp={ ", " }\n"); in fas216_dumpinfo()
202 info->scsi.async_stp, in fas216_dumpinfo()
203 info->scsi.disconnectable, info->scsi.aborting); in fas216_dumpinfo()
206 info->stats.queues, info->stats.removes, info->stats.fins, in fas216_dumpinfo()
207 info->stats.reads, info->stats.writes, info->stats.miscs, in fas216_dumpinfo()
208 info->stats.disconnects, info->stats.aborts, info->stats.bus_resets, in fas216_dumpinfo()
209 info->stats.host_resets); in fas216_dumpinfo()
211 info->ifcfg.clockrate, info->ifcfg.select_timeout, in fas216_dumpinfo()
212 info->ifcfg.asyncperiod, info->ifcfg.sync_max_depth); in fas216_dumpinfo()
215 i, info->busyluns[i], i, in fas216_dumpinfo()
216 info->device[i].disconnect_ok, info->device[i].stp, in fas216_dumpinfo()
217 info->device[i].sof, info->device[i].sync_state); in fas216_dumpinfo()
220 info->dma.transfer_type, info->dma.setup, in fas216_dumpinfo()
221 info->dma.pseudo, info->dma.stop); in fas216_dumpinfo()
223 info->internal_done, info->magic_end); in fas216_dumpinfo()
229 if (info->magic_start != MAGIC) { in __fas216_checkmagic()
233 if (info->magic_end != MAGIC) { in __fas216_checkmagic()
251 "COMMAND", "STATUS", in fas216_bus_phase()
264 [PHASE_COMMAND] = "command", in fas216_drv_phase()
275 if (info->scsi.phase < ARRAY_SIZE(phases) && in fas216_drv_phase()
276 phases[info->scsi.phase]) in fas216_drv_phase()
277 return phases[info->scsi.phase]; in fas216_drv_phase()
283 if (info->SCpnt) in fas216_target()
284 return '0' + info->SCpnt->device->id; in fas216_target()
295 printk("scsi%d.%c: %s", info->host->host_no, target, buf); in fas216_do_log()
307 fas216_do_log(info, '0' + SCpnt->device->id, fmt, args); in fas216_log_command()
359 ph_ptr = (ph_ptr + 1) & (PH_SIZE-1); in add_debug_list()
362 static struct { int command; void *from; } cmd_list[8]; member
365 static void fas216_cmd(FAS216_Info *info, unsigned int command) in fas216_cmd() argument
367 cmd_list[cmd_ptr].command = command; in fas216_cmd()
372 fas216_writeb(info, REG_CMD, command); in fas216_cmd()
386 i = (i + 1) & (PH_SIZE - 1); in print_debug_list()
396 printk("%02x:%p ", cmd_list[i].command, cmd_list[i].from); in print_debug_list()
405 * fas216_get_last_msg - retrive last message from the list
418 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) { in fas216_get_last_msg()
419 if (pos >= msg->fifo) in fas216_get_last_msg()
424 if (msg->msg[0] == EXTENDED_MESSAGE) in fas216_get_last_msg()
425 packed_msg = EXTENDED_MESSAGE | msg->msg[2] << 8; in fas216_get_last_msg()
427 packed_msg = msg->msg[0]; in fas216_get_last_msg()
437 * fas216_syncperiod - calculate STP register value
446 int value = (info->ifcfg.clockrate * ns) / 1000; in fas216_syncperiod()
459 * fas216_set_sync - setup FAS216 chip for specified transfer period.
465 * a transfer period >= 200ns - otherwise the chip will violate
472 fas216_writeb(info, REG_SOF, info->device[target].sof); in fas216_set_sync()
473 fas216_writeb(info, REG_STP, info->device[target].stp); in fas216_set_sync()
475 cntl3 = info->scsi.cfg[2]; in fas216_set_sync()
476 if (info->device[target].period >= (200 / 4)) in fas216_set_sync()
486 * (2) Due to historical problems with early host adapters that could
488 * negotiation after a power cycle as required by this standard. Host
491 * synchronous negotiation on each REQUEST SENSE and INQUIRY command.
507 * fas216_handlesync - Handle a synchronous transfer message
515 struct fas216_device *dev = &info->device[info->SCpnt->device->id]; in fas216_handlesync()
531 if (dev->sync_state == neg_inprogress) { in fas216_handlesync()
532 dev->sync_state = neg_invalid; in fas216_handlesync()
538 switch (dev->sync_state) { in fas216_handlesync()
555 if (msg[4] > info->ifcfg.sync_max_depth) in fas216_handlesync()
556 msg[4] = info->ifcfg.sync_max_depth; in fas216_handlesync()
557 if (msg[3] < 1000 / info->ifcfg.clockrate) in fas216_handlesync()
558 msg[3] = 1000 / info->ifcfg.clockrate; in fas216_handlesync()
560 msgqueue_flush(&info->scsi.msgs); in fas216_handlesync()
561 msgqueue_addmsg(&info->scsi.msgs, 5, in fas216_handlesync()
564 info->scsi.phase = PHASE_MSGOUT_EXPECT; in fas216_handlesync()
569 dev->sync_state = neg_targcomplete; in fas216_handlesync()
581 if (msg[4] <= info->ifcfg.sync_max_depth && in fas216_handlesync()
582 msg[3] >= 1000 / info->ifcfg.clockrate) { in fas216_handlesync()
583 dev->sync_state = neg_complete; in fas216_handlesync()
595 dev->period = msg[3]; in fas216_handlesync()
596 dev->sof = msg[4]; in fas216_handlesync()
597 dev->stp = fas216_syncperiod(info, msg[3] * 4); in fas216_handlesync()
598 fas216_set_sync(info, info->SCpnt->device->id); in fas216_handlesync()
603 msgqueue_flush(&info->scsi.msgs); in fas216_handlesync()
604 msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT); in fas216_handlesync()
605 info->scsi.phase = PHASE_MSGOUT_EXPECT; in fas216_handlesync()
609 dev->period = info->ifcfg.asyncperiod / 4; in fas216_handlesync()
610 dev->sof = 0; in fas216_handlesync()
611 dev->stp = info->scsi.async_stp; in fas216_handlesync()
612 fas216_set_sync(info, info->SCpnt->device->id); in fas216_handlesync()
621 * fas216_updateptrs - update data pointers after transfer suspended/paused
629 struct scsi_pointer *SCp = &info->scsi.SCp; in fas216_updateptrs()
635 SCp->phase -= bytes_transferred; in fas216_updateptrs()
638 if (SCp->this_residual > bytes_transferred) in fas216_updateptrs()
644 bytes_transferred -= SCp->this_residual; in fas216_updateptrs()
647 info->host->host_no, '0' + info->SCpnt->device->id); in fas216_updateptrs()
652 SCp->this_residual -= bytes_transferred; in fas216_updateptrs()
653 if (SCp->this_residual) in fas216_updateptrs()
654 SCp->ptr += bytes_transferred; in fas216_updateptrs()
656 SCp->ptr = NULL; in fas216_updateptrs()
660 * fas216_pio - transfer data off of/on to card using programmed IO
669 struct scsi_pointer *SCp = &info->scsi.SCp; in fas216_pio()
678 if (SCp->this_residual == 0) in fas216_pio()
697 * fas216_cleanuptransfer - clean up after a transfer has completed.
706 fasdmatype_t dmatype = info->dma.transfer_type; in fas216_cleanuptransfer()
708 info->dma.transfer_type = fasdma_none; in fas216_cleanuptransfer()
717 total = info->scsi.SCp.phase; in fas216_cleanuptransfer()
719 total = info->scsi.SCp.this_residual; in fas216_cleanuptransfer()
730 * If we were performing Data-Out, the transfer counter in fas216_cleanuptransfer()
732 * host to the FIFO. This means we must include the in fas216_cleanuptransfer()
735 if (info->scsi.phase == PHASE_DATAOUT) in fas216_cleanuptransfer()
738 fas216_updateptrs(info, total - residual); in fas216_cleanuptransfer()
742 * fas216_transfer - Perform a DMA/PIO transfer off of/on to card
754 info->scsi.SCp.ptr, info->scsi.SCp.this_residual, in fas216_transfer()
755 info->scsi.SCp.phase); in fas216_transfer()
757 if (!info->scsi.SCp.ptr) { in fas216_transfer()
760 print_SCp(&info->scsi.SCp, "SCp: ", "\n"); in fas216_transfer()
761 print_SCp(&info->SCpnt->SCp, "Cmnd SCp: ", "\n"); in fas216_transfer()
770 if (info->device[info->SCpnt->device->id].sof) in fas216_transfer()
775 if (info->scsi.phase == PHASE_DATAOUT) in fas216_transfer()
780 if (info->dma.setup) in fas216_transfer()
781 dmatype = info->dma.setup(info->host, &info->scsi.SCp, in fas216_transfer()
783 info->dma.transfer_type = dmatype; in fas216_transfer()
786 fas216_set_stc(info, info->scsi.SCp.phase); in fas216_transfer()
788 fas216_set_stc(info, info->scsi.SCp.this_residual); in fas216_transfer()
794 fas216_writeb(info, REG_STP, info->scsi.async_stp); in fas216_transfer()
802 info->dma.pseudo(info->host, &info->scsi.SCp, in fas216_transfer()
803 direction, info->SCpnt->transfersize); in fas216_transfer()
824 * fas216_stoptransfer - Stop a DMA transfer onto / off of the card
833 if (info->dma.transfer_type == fasdma_real_all || in fas216_stoptransfer()
834 info->dma.transfer_type == fasdma_real_block) in fas216_stoptransfer()
835 info->dma.stop(info->host, &info->scsi.SCp); in fas216_stoptransfer()
839 if (info->scsi.phase == PHASE_DATAIN) { in fas216_stoptransfer()
843 * If we were performing Data-In, then the FIFO counter in fas216_stoptransfer()
845 * from the on-board FIFO. Read them manually. in fas216_stoptransfer()
848 while (fifo && info->scsi.SCp.ptr) { in fas216_stoptransfer()
849 *info->scsi.SCp.ptr = fas216_readb(info, REG_FF); in fas216_stoptransfer()
851 fifo--; in fas216_stoptransfer()
855 * After a Data-Out phase, there may be unsent in fas216_stoptransfer()
866 if (info->dma.transfer_type == fasdma_real_all || in fas216_aborttransfer()
867 info->dma.transfer_type == fasdma_real_block) in fas216_aborttransfer()
868 info->dma.stop(info->host, &info->scsi.SCp); in fas216_aborttransfer()
870 info->dma.transfer_type = fasdma_none; in fas216_aborttransfer()
877 * fas216_disconnected_intr - handle device disconnection
889 info->scsi.phase); in fas216_disconnect_intr()
891 msgqueue_flush(&info->scsi.msgs); in fas216_disconnect_intr()
893 switch (info->scsi.phase) { in fas216_disconnect_intr()
894 case PHASE_SELECTION: /* while selecting - no target */ in fas216_disconnect_intr()
899 case PHASE_MSGIN_DISCONNECT: /* message in - disconnecting */ in fas216_disconnect_intr()
900 info->scsi.disconnectable = 1; in fas216_disconnect_intr()
901 info->scsi.phase = PHASE_IDLE; in fas216_disconnect_intr()
902 info->stats.disconnects += 1; in fas216_disconnect_intr()
903 spin_lock_irqsave(&info->host_lock, flags); in fas216_disconnect_intr()
904 if (info->scsi.phase == PHASE_IDLE) in fas216_disconnect_intr()
906 spin_unlock_irqrestore(&info->host_lock, flags); in fas216_disconnect_intr()
909 case PHASE_DONE: /* at end of command - complete */ in fas216_disconnect_intr()
913 case PHASE_MSGOUT: /* message out - possible ABORT message */ in fas216_disconnect_intr()
914 if (fas216_get_last_msg(info, info->scsi.msgin_fifo) == ABORT) { in fas216_disconnect_intr()
915 info->scsi.aborting = 0; in fas216_disconnect_intr()
923 info->host->host_no, fas216_target(info), fas216_drv_phase(info)); in fas216_disconnect_intr()
932 * fas216_reselected_intr - start reconnection of a device
946 WARN_ON(info->scsi.phase == PHASE_SELECTION || in fas216_reselected_intr()
947 info->scsi.phase == PHASE_SELSTEPS); in fas216_reselected_intr()
952 info->scsi.phase, cfis); in fas216_reselected_intr()
958 info->host->host_no); in fas216_reselected_intr()
965 if (!(msg[0] & (1 << info->host->this_id)) || in fas216_reselected_intr()
969 target = msg[0] & ~(1 << info->host->this_id); in fas216_reselected_intr()
970 target = ffs(target) - 1; in fas216_reselected_intr()
984 msgqueue_flush(&info->scsi.msgs); in fas216_reselected_intr()
989 if (info->scsi.disconnectable && info->SCpnt) { in fas216_reselected_intr()
990 info->scsi.disconnectable = 0; in fas216_reselected_intr()
991 if (info->SCpnt->device->id == target && in fas216_reselected_intr()
992 info->SCpnt->device->lun == lun && in fas216_reselected_intr()
993 info->SCpnt->tag == tag) { in fas216_reselected_intr()
994 fas216_log(info, LOG_CONNECT, "reconnected previously executing command"); in fas216_reselected_intr()
996 queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt); in fas216_reselected_intr()
997 fas216_log(info, LOG_CONNECT, "had to move command to disconnected queue"); in fas216_reselected_intr()
998 info->SCpnt = NULL; in fas216_reselected_intr()
1001 if (!info->SCpnt) { in fas216_reselected_intr()
1002 info->SCpnt = queue_remove_tgtluntag(&info->queues.disconnected, in fas216_reselected_intr()
1004 fas216_log(info, LOG_CONNECT, "had to get command"); in fas216_reselected_intr()
1007 if (info->SCpnt) { in fas216_reselected_intr()
1011 info->scsi.SCp = info->SCpnt->SCp; in fas216_reselected_intr()
1014 info->scsi.SCp.ptr, info->scsi.SCp.this_residual); in fas216_reselected_intr()
1015 info->scsi.phase = PHASE_MSGIN; in fas216_reselected_intr()
1018 * Our command structure not found - abort the in fas216_reselected_intr()
1019 * command on the target. Since we have no in fas216_reselected_intr()
1020 * record of this command, we can't send in fas216_reselected_intr()
1027 msgqueue_addmsg(&info->scsi.msgs, 2, ABORT_TAG, tag); in fas216_reselected_intr()
1030 msgqueue_addmsg(&info->scsi.msgs, 1, ABORT); in fas216_reselected_intr()
1031 info->scsi.phase = PHASE_MSGOUT_EXPECT; in fas216_reselected_intr()
1032 info->scsi.aborting = 1; in fas216_reselected_intr()
1040 info->host->host_no); in fas216_reselected_intr()
1046 msgqueue_flush(&info->scsi.msgs); in fas216_reselected_intr()
1047 msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR); in fas216_reselected_intr()
1048 info->scsi.phase = PHASE_MSGOUT_EXPECT; in fas216_reselected_intr()
1061 printk(KERN_ERR "scsi%d.%c: command complete with no " in fas216_parse_message()
1063 info->host->host_no, fas216_target(info)); in fas216_parse_message()
1074 * NOTE: we DO NOT save the command nor status pointers in fas216_parse_message()
1078 info->SCpnt->SCp = info->scsi.SCp; in fas216_parse_message()
1079 info->SCpnt->SCp.sent_command = 0; in fas216_parse_message()
1082 info->scsi.SCp.ptr, info->scsi.SCp.this_residual); in fas216_parse_message()
1092 info->scsi.SCp = info->SCpnt->SCp; in fas216_parse_message()
1095 info->scsi.SCp.ptr, info->scsi.SCp.this_residual); in fas216_parse_message()
1102 info->scsi.phase = PHASE_MSGIN_DISCONNECT; in fas216_parse_message()
1109 switch (fas216_get_last_msg(info, info->scsi.msgin_fifo)) { in fas216_parse_message()
1116 fas216_get_last_msg(info, info->scsi.msgin_fifo)); in fas216_parse_message()
1144 printk("scsi%d.%c: message was", info->host->host_no, fas216_target(info)); in fas216_parse_message()
1150 * Something strange seems to be happening here - in fas216_parse_message()
1152 * invalid command interrupt when I do. Weird. in fas216_parse_message()
1157 msgqueue_flush(&info->scsi.msgs); in fas216_parse_message()
1158 msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT); in fas216_parse_message()
1159 info->scsi.phase = PHASE_MSGOUT_EXPECT; in fas216_parse_message()
1170 for (tout = 1000; tout; tout -= 1) { in fas216_wait_cmd()
1209 return -1; in fas216_get_msg_byte()
1213 return -2; in fas216_get_msg_byte()
1217 return -3; in fas216_get_msg_byte()
1221 * fas216_message - handle a function done interrupt from FAS216 chip
1228 unsigned char *message = info->scsi.message; in fas216_message()
1253 if (msgbyte == -3) in fas216_message()
1261 info->host->host_no, fas216_target(info)); in fas216_message()
1274 msgqueue_flush(&info->scsi.msgs); in fas216_message()
1275 msgqueue_addmsg(&info->scsi.msgs, 1, MSG_PARITY_ERROR); in fas216_message()
1276 info->scsi.phase = PHASE_MSGOUT_EXPECT; in fas216_message()
1282 * fas216_send_command - send command after all message bytes have been sent
1285 * Send a command to a target after all message bytes have been sent
1296 /* load command */ in fas216_send_command()
1297 for (i = info->scsi.SCp.sent_command; i < info->SCpnt->cmd_len; i++) in fas216_send_command()
1298 fas216_writeb(info, REG_FF, info->SCpnt->cmnd[i]); in fas216_send_command()
1302 info->scsi.phase = PHASE_COMMAND; in fas216_send_command()
1306 * fas216_send_messageout - handle bus service to send a message
1314 unsigned int tot_msglen = msgqueue_msglength(&info->scsi.msgs); in fas216_send_messageout()
1324 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) { in fas216_send_messageout()
1327 for (i = start; i < msg->length; i++) in fas216_send_messageout()
1328 fas216_writeb(info, REG_FF, msg->msg[i]); in fas216_send_messageout()
1330 msg->fifo = tot_msglen - (fas216_readb(info, REG_CFIS) & CFIS_CF); in fas216_send_messageout()
1338 info->scsi.phase = PHASE_MSGOUT; in fas216_send_messageout()
1342 * fas216_busservice_intr - handle bus service interrupt from FAS216 chip
1355 stat, is, info->scsi.phase); in fas216_busservice_intr()
1357 switch (info->scsi.phase) { in fas216_busservice_intr()
1389 switch (STATE(stat & STAT_BUSMASK, info->scsi.phase)) { in fas216_busservice_intr()
1390 case STATE(STAT_DATAIN, PHASE_SELSTEPS):/* Sel w/ steps -> Data In */ in fas216_busservice_intr()
1391 case STATE(STAT_DATAIN, PHASE_MSGOUT): /* Message Out -> Data In */ in fas216_busservice_intr()
1392 case STATE(STAT_DATAIN, PHASE_COMMAND): /* Command -> Data In */ in fas216_busservice_intr()
1393 case STATE(STAT_DATAIN, PHASE_MSGIN): /* Message In -> Data In */ in fas216_busservice_intr()
1394 info->scsi.phase = PHASE_DATAIN; in fas216_busservice_intr()
1398 case STATE(STAT_DATAIN, PHASE_DATAIN): /* Data In -> Data In */ in fas216_busservice_intr()
1399 case STATE(STAT_DATAOUT, PHASE_DATAOUT):/* Data Out -> Data Out */ in fas216_busservice_intr()
1404 case STATE(STAT_DATAOUT, PHASE_SELSTEPS):/* Sel w/ steps-> Data Out */ in fas216_busservice_intr()
1405 case STATE(STAT_DATAOUT, PHASE_MSGOUT): /* Message Out -> Data Out */ in fas216_busservice_intr()
1406 case STATE(STAT_DATAOUT, PHASE_COMMAND):/* Command -> Data Out */ in fas216_busservice_intr()
1407 case STATE(STAT_DATAOUT, PHASE_MSGIN): /* Message In -> Data Out */ in fas216_busservice_intr()
1409 info->scsi.phase = PHASE_DATAOUT; in fas216_busservice_intr()
1413 case STATE(STAT_STATUS, PHASE_DATAOUT): /* Data Out -> Status */ in fas216_busservice_intr()
1414 case STATE(STAT_STATUS, PHASE_DATAIN): /* Data In -> Status */ in fas216_busservice_intr()
1418 case STATE(STAT_STATUS, PHASE_SELSTEPS):/* Sel w/ steps -> Status */ in fas216_busservice_intr()
1419 case STATE(STAT_STATUS, PHASE_MSGOUT): /* Message Out -> Status */ in fas216_busservice_intr()
1420 case STATE(STAT_STATUS, PHASE_COMMAND): /* Command -> Status */ in fas216_busservice_intr()
1421 case STATE(STAT_STATUS, PHASE_MSGIN): /* Message In -> Status */ in fas216_busservice_intr()
1423 info->scsi.phase = PHASE_STATUS; in fas216_busservice_intr()
1426 case STATE(STAT_MESGIN, PHASE_DATAOUT): /* Data Out -> Message In */ in fas216_busservice_intr()
1427 case STATE(STAT_MESGIN, PHASE_DATAIN): /* Data In -> Message In */ in fas216_busservice_intr()
1431 case STATE(STAT_MESGIN, PHASE_COMMAND): /* Command -> Message In */ in fas216_busservice_intr()
1432 case STATE(STAT_MESGIN, PHASE_SELSTEPS):/* Sel w/ steps -> Message In */ in fas216_busservice_intr()
1433 case STATE(STAT_MESGIN, PHASE_MSGOUT): /* Message Out -> Message In */ in fas216_busservice_intr()
1434 info->scsi.msgin_fifo = fas216_readb(info, REG_CFIS) & CFIS_CF; in fas216_busservice_intr()
1437 info->scsi.phase = PHASE_MSGIN; in fas216_busservice_intr()
1441 info->scsi.msgin_fifo = fas216_readb(info, REG_CFIS) & CFIS_CF; in fas216_busservice_intr()
1445 case STATE(STAT_COMMAND, PHASE_MSGOUT): /* Message Out -> Command */ in fas216_busservice_intr()
1446 case STATE(STAT_COMMAND, PHASE_MSGIN): /* Message In -> Command */ in fas216_busservice_intr()
1448 info->scsi.phase = PHASE_COMMAND; in fas216_busservice_intr()
1453 * Selection -> Message Out in fas216_busservice_intr()
1460 * Message Out -> Message Out in fas216_busservice_intr()
1470 if (info->device[info->SCpnt->device->id].parity_check) { in fas216_busservice_intr()
1475 info->device[info->SCpnt->device->id].parity_check = 0; in fas216_busservice_intr()
1476 info->device[info->SCpnt->device->id].parity_enabled = 1; in fas216_busservice_intr()
1477 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]); in fas216_busservice_intr()
1480 if (msgqueue_msglength(&info->scsi.msgs) > 1) in fas216_busservice_intr()
1485 * Any -> Message Out in fas216_busservice_intr()
1495 case STATE(STAT_COMMAND, PHASE_COMMAND):/* Command -> Command */ in fas216_busservice_intr()
1496 /* error - we've sent out all the command bytes in fas216_busservice_intr()
1499 * to include the command bytes sent for this to work in fas216_busservice_intr()
1503 "target trying to receive more command bytes\n", in fas216_busservice_intr()
1504 info->host->host_no, fas216_target(info)); in fas216_busservice_intr()
1508 msgqueue_flush(&info->scsi.msgs); in fas216_busservice_intr()
1509 msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR); in fas216_busservice_intr()
1510 info->scsi.phase = PHASE_MSGOUT_EXPECT; in fas216_busservice_intr()
1514 if (info->scsi.phase == PHASE_MSGIN_DISCONNECT) { in fas216_busservice_intr()
1516 info->host->host_no, fas216_target(info), in fas216_busservice_intr()
1518 msgqueue_flush(&info->scsi.msgs); in fas216_busservice_intr()
1520 msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR); in fas216_busservice_intr()
1521 info->scsi.phase = PHASE_MSGOUT_EXPECT; in fas216_busservice_intr()
1522 info->scsi.aborting = 1; in fas216_busservice_intr()
1527 info->host->host_no, fas216_target(info), in fas216_busservice_intr()
1542 * fas216_funcdone_intr - handle a function done interrupt from FAS216 chip
1557 stat, is, info->scsi.phase); in fas216_funcdone_intr()
1559 switch (info->scsi.phase) { in fas216_funcdone_intr()
1560 case PHASE_STATUS: /* status phase - read status and msg */ in fas216_funcdone_intr()
1567 info->scsi.SCp.Status = fas216_readb(info, REG_FF); in fas216_funcdone_intr()
1568 info->scsi.SCp.Message = fas216_readb(info, REG_FF); in fas216_funcdone_intr()
1569 info->scsi.phase = PHASE_DONE; in fas216_funcdone_intr()
1580 info->scsi.msgin_fifo = fifo_len; in fas216_funcdone_intr()
1598 msgqueue_flush(&info->scsi.msgs); in fas216_bus_reset()
1603 if (info->ifcfg.capabilities & (FASCAP_DMA|FASCAP_PSEUDODMA)) in fas216_bus_reset()
1607 info->scsi.phase = PHASE_IDLE; in fas216_bus_reset()
1608 info->SCpnt = NULL; /* bug! */ in fas216_bus_reset()
1609 memset(&info->scsi.SCp, 0, sizeof(info->scsi.SCp)); in fas216_bus_reset()
1612 info->device[i].disconnect_ok = info->ifcfg.disconnect_ok; in fas216_bus_reset()
1613 info->device[i].sync_state = sync_state; in fas216_bus_reset()
1614 info->device[i].period = info->ifcfg.asyncperiod / 4; in fas216_bus_reset()
1615 info->device[i].stp = info->scsi.async_stp; in fas216_bus_reset()
1616 info->device[i].sof = 0; in fas216_bus_reset()
1617 info->device[i].wide_xfer = 0; in fas216_bus_reset()
1620 info->rst_bus_status = 1; in fas216_bus_reset()
1621 wake_up(&info->eh_wait); in fas216_bus_reset()
1625 * fas216_intr - handle interrupts to progress a command
1628 * Handle interrupts from the interface to progress a command
1641 add_debug_list(stat, is, inst, info->scsi.phase); in fas216_intr()
1647 scsi_report_bus_reset(info->host, 0); in fas216_intr()
1649 fas216_log(info, LOG_ERROR, "illegal command given\n"); in fas216_intr()
1680 /* load bus-id and timeout */ in __fas216_start_command()
1681 fas216_writeb(info, REG_SDID, BUSID(SCpnt->device->id)); in __fas216_start_command()
1682 fas216_writeb(info, REG_STIM, info->ifcfg.select_timeout); in __fas216_start_command()
1685 fas216_set_sync(info, SCpnt->device->id); in __fas216_start_command()
1687 tot_msglen = msgqueue_msglength(&info->scsi.msgs); in __fas216_start_command()
1695 info->host->host_no, '0' + SCpnt->device->id); in __fas216_start_command()
1696 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) { in __fas216_start_command()
1698 for (i = 0; i < msg->length; i++) in __fas216_start_command()
1699 printk("%02x ", msg->msg[i]); in __fas216_start_command()
1713 info->scsi.phase = PHASE_SELSTEPS; in __fas216_start_command()
1716 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) { in __fas216_start_command()
1717 for (i = 0; i < msg->length; i++) in __fas216_start_command()
1718 fas216_writeb(info, REG_FF, msg->msg[i]); in __fas216_start_command()
1719 msg->fifo = tot_msglen - (fas216_readb(info, REG_CFIS) & CFIS_CF); in __fas216_start_command()
1722 /* load command */ in __fas216_start_command()
1723 for (i = 0; i < SCpnt->cmd_len; i++) in __fas216_start_command()
1724 fas216_writeb(info, REG_FF, SCpnt->cmnd[i]); in __fas216_start_command()
1736 struct message *msg = msgqueue_getmsg(&info->scsi.msgs, 0); in __fas216_start_command()
1738 fas216_writeb(info, REG_FF, msg->msg[0]); in __fas216_start_command()
1739 msg->fifo = 1; in __fas216_start_command()
1754 info->device[target].parity_check = 0; in parity_test()
1758 return info->device[target].parity_check; in parity_test()
1766 * claim host busy in fas216_start_command()
1768 info->scsi.phase = PHASE_SELECTION; in fas216_start_command()
1769 info->scsi.SCp = SCpnt->SCp; in fas216_start_command()
1770 info->SCpnt = SCpnt; in fas216_start_command()
1771 info->dma.transfer_type = fasdma_none; in fas216_start_command()
1773 if (parity_test(info, SCpnt->device->id)) in fas216_start_command()
1774 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0] | CNTL1_PTE); in fas216_start_command()
1776 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]); in fas216_start_command()
1781 disconnect_ok = SCpnt->cmnd[0] != REQUEST_SENSE && in fas216_start_command()
1782 info->device[SCpnt->device->id].disconnect_ok; in fas216_start_command()
1787 msgqueue_flush(&info->scsi.msgs); in fas216_start_command()
1788 msgqueue_addmsg(&info->scsi.msgs, 1, IDENTIFY(disconnect_ok, SCpnt->device->lun)); in fas216_start_command()
1793 if (SCpnt->tag) in fas216_start_command()
1794 msgqueue_addmsg(&info->scsi.msgs, 2, SIMPLE_QUEUE_TAG, SCpnt->tag); in fas216_start_command()
1798 if ((info->device[SCpnt->device->id].sync_state == neg_wait || in fas216_start_command()
1799 info->device[SCpnt->device->id].sync_state == neg_complete) && in fas216_start_command()
1800 (SCpnt->cmnd[0] == REQUEST_SENSE || in fas216_start_command()
1801 SCpnt->cmnd[0] == INQUIRY)) { in fas216_start_command()
1802 info->device[SCpnt->device->id].sync_state = neg_inprogress; in fas216_start_command()
1803 msgqueue_addmsg(&info->scsi.msgs, 5, in fas216_start_command()
1805 1000 / info->ifcfg.clockrate, in fas216_start_command()
1806 info->ifcfg.sync_max_depth); in fas216_start_command()
1819 * tagged queuing - allocate a new tag to this command in fas216_allocate_tag()
1821 if (SCpnt->device->simple_tags && SCpnt->cmnd[0] != REQUEST_SENSE && in fas216_allocate_tag()
1822 SCpnt->cmnd[0] != INQUIRY) { in fas216_allocate_tag()
1823 SCpnt->device->current_tag += 1; in fas216_allocate_tag()
1824 if (SCpnt->device->current_tag == 0) in fas216_allocate_tag()
1825 SCpnt->device->current_tag = 1; in fas216_allocate_tag()
1826 SCpnt->tag = SCpnt->device->current_tag; in fas216_allocate_tag()
1829 set_bit(SCpnt->device->id * 8 + in fas216_allocate_tag()
1830 (u8)(SCpnt->device->lun & 0x7), info->busyluns); in fas216_allocate_tag()
1832 info->stats.removes += 1; in fas216_allocate_tag()
1833 switch (SCpnt->cmnd[0]) { in fas216_allocate_tag()
1837 info->stats.writes += 1; in fas216_allocate_tag()
1842 info->stats.reads += 1; in fas216_allocate_tag()
1845 info->stats.miscs += 1; in fas216_allocate_tag()
1856 * claim host busy in fas216_do_bus_device_reset()
1858 info->scsi.phase = PHASE_SELECTION; in fas216_do_bus_device_reset()
1859 info->scsi.SCp = SCpnt->SCp; in fas216_do_bus_device_reset()
1860 info->SCpnt = SCpnt; in fas216_do_bus_device_reset()
1861 info->dma.transfer_type = fasdma_none; in fas216_do_bus_device_reset()
1865 msgqueue_flush(&info->scsi.msgs); in fas216_do_bus_device_reset()
1866 msgqueue_addmsg(&info->scsi.msgs, 1, BUS_DEVICE_RESET); in fas216_do_bus_device_reset()
1875 /* load bus-id and timeout */ in fas216_do_bus_device_reset()
1876 fas216_writeb(info, REG_SDID, BUSID(SCpnt->device->id)); in fas216_do_bus_device_reset()
1877 fas216_writeb(info, REG_STIM, info->ifcfg.select_timeout); in fas216_do_bus_device_reset()
1880 fas216_set_sync(info, SCpnt->device->id); in fas216_do_bus_device_reset()
1882 msg = msgqueue_getmsg(&info->scsi.msgs, 0); in fas216_do_bus_device_reset()
1885 msg->fifo = 1; in fas216_do_bus_device_reset()
1891 * fas216_kick - kick a command to the interface
1892 * @info: our host interface to kick
1894 * Kick a command to the interface, interface should be idle.
1908 * Obtain the next command to process. in fas216_kick()
1911 if (info->rstSCpnt) { in fas216_kick()
1912 SCpnt = info->rstSCpnt; in fas216_kick()
1918 if (info->reqSCpnt) { in fas216_kick()
1919 SCpnt = info->reqSCpnt; in fas216_kick()
1920 info->reqSCpnt = NULL; in fas216_kick()
1924 if (info->origSCpnt) { in fas216_kick()
1925 SCpnt = info->origSCpnt; in fas216_kick()
1926 info->origSCpnt = NULL; in fas216_kick()
1930 /* retrieve next command */ in fas216_kick()
1932 SCpnt = queue_remove_exclude(&info->queues.issue, in fas216_kick()
1933 info->busyluns); in fas216_kick()
1941 * no command pending, so enable reselection. in fas216_kick()
1948 * We're going to start a command, so disable reselection in fas216_kick()
1952 if (info->scsi.disconnectable && info->SCpnt) { in fas216_kick()
1954 "moved command for %d to disconnected queue", in fas216_kick()
1955 info->SCpnt->device->id); in fas216_kick()
1956 queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt); in fas216_kick()
1957 info->scsi.disconnectable = 0; in fas216_kick()
1958 info->SCpnt = NULL; in fas216_kick()
1977 info->scsi.SCp.ptr, info->scsi.SCp.this_residual); in fas216_kick()
1993 info->rstSCpnt = NULL; in fas216_devicereset_done()
1994 info->rst_dev_status = 1; in fas216_devicereset_done()
1995 wake_up(&info->eh_wait); in fas216_devicereset_done()
1999 * fas216_rq_sns_done - Finish processing automatic request sense command
2001 * @SCpnt: command that completed
2004 * Finish processing automatic request sense command
2009 fas216_log_target(info, LOG_CONNECT, SCpnt->device->id, in fas216_rq_sns_done()
2011 result, SCpnt->SCp.Message, SCpnt->SCp.Status); in fas216_rq_sns_done()
2013 if (result != DID_OK || SCpnt->SCp.Status != GOOD) in fas216_rq_sns_done()
2019 memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); in fas216_rq_sns_done()
2020 //printk("scsi%d.%c: sense buffer: ", info->host->host_no, '0' + SCpnt->device->id); in fas216_rq_sns_done()
2021 //{ int i; for (i = 0; i < 32; i++) printk("%02x ", SCpnt->sense_buffer[i]); printk("\n"); } in fas216_rq_sns_done()
2023 * Note that we don't set SCpnt->result, since that should in fas216_rq_sns_done()
2024 * reflect the status of the command that we were asked by in fas216_rq_sns_done()
2028 scsi_eh_restore_cmnd(SCpnt, &info->ses); in fas216_rq_sns_done()
2029 SCpnt->scsi_done(SCpnt); in fas216_rq_sns_done()
2033 * fas216_std_done - finish processing of standard command
2035 * @SCpnt: command that completed
2038 * Finish processing of standard command
2043 info->stats.fins += 1; in fas216_std_done()
2045 SCpnt->result = result << 16 | info->scsi.SCp.Message << 8 | in fas216_std_done()
2046 info->scsi.SCp.Status; in fas216_std_done()
2049 "command complete, result=0x%08x", SCpnt->result); in fas216_std_done()
2054 if (host_byte(SCpnt->result) != DID_OK || in fas216_std_done()
2055 msg_byte(SCpnt->result) != COMMAND_COMPLETE) in fas216_std_done()
2059 * If the command returned CHECK_CONDITION or COMMAND_TERMINATED in fas216_std_done()
2062 if (status_byte(SCpnt->result) == CHECK_CONDITION || in fas216_std_done()
2063 status_byte(SCpnt->result) == COMMAND_TERMINATED) in fas216_std_done()
2067 * If the command did not complete with GOOD status, in fas216_std_done()
2070 if (status_byte(SCpnt->result) != GOOD) in fas216_std_done()
2074 * We have successfully completed a command. Make sure that in fas216_std_done()
2080 if (info->scsi.SCp.ptr) { in fas216_std_done()
2081 switch (SCpnt->cmnd[0]) { in fas216_std_done()
2090 SCpnt->result, info->scsi.SCp.ptr, in fas216_std_done()
2091 info->scsi.SCp.this_residual); in fas216_std_done()
2099 if (SCpnt->scsi_done) { in fas216_std_done()
2100 SCpnt->scsi_done(SCpnt); in fas216_std_done()
2105 info->host->host_no); in fas216_std_done()
2109 if (SCpnt->cmnd[0] == REQUEST_SENSE) in fas216_std_done()
2112 scsi_eh_prep_cmnd(SCpnt, &info->ses, NULL, 0, ~0); in fas216_std_done()
2113 fas216_log_target(info, LOG_CONNECT, SCpnt->device->id, in fas216_std_done()
2116 SCpnt->SCp.Message = 0; in fas216_std_done()
2117 SCpnt->SCp.Status = 0; in fas216_std_done()
2118 SCpnt->tag = 0; in fas216_std_done()
2119 SCpnt->host_scribble = (void *)fas216_rq_sns_done; in fas216_std_done()
2122 * Place this command into the high priority "request in fas216_std_done()
2123 * sense" slot. This will be the very next command in fas216_std_done()
2126 if (info->reqSCpnt) in fas216_std_done()
2127 printk(KERN_WARNING "scsi%d.%c: losing request command\n", in fas216_std_done()
2128 info->host->host_no, '0' + SCpnt->device->id); in fas216_std_done()
2129 info->reqSCpnt = SCpnt; in fas216_std_done()
2133 * fas216_done - complete processing for current command
2137 * Complete processing for current command
2147 if (!info->SCpnt) in fas216_done()
2150 SCpnt = info->SCpnt; in fas216_done()
2151 info->SCpnt = NULL; in fas216_done()
2152 info->scsi.phase = PHASE_IDLE; in fas216_done()
2154 if (info->scsi.aborting) { in fas216_done()
2155 fas216_log(info, 0, "uncaught abort - returning DID_ABORT"); in fas216_done()
2157 info->scsi.aborting = 0; in fas216_done()
2161 * Sanity check the completion - if we have zero bytes left in fas216_done()
2164 if (info->scsi.SCp.ptr && info->scsi.SCp.this_residual == 0) { in fas216_done()
2167 info->scsi.SCp.ptr, info->scsi.SCp.this_residual); in fas216_done()
2168 info->scsi.SCp.ptr = NULL; in fas216_done()
2173 * Clear down this command as completed. If we need to request in fas216_done()
2174 * the sense information, fas216_kick will re-assert the busy in fas216_done()
2177 info->device[SCpnt->device->id].parity_check = 0; in fas216_done()
2178 clear_bit(SCpnt->device->id * 8 + in fas216_done()
2179 (u8)(SCpnt->device->lun & 0x7), info->busyluns); in fas216_done()
2181 fn = (void (*)(FAS216_Info *, struct scsi_cmnd *, unsigned int))SCpnt->host_scribble; in fas216_done()
2184 if (info->scsi.irq) { in fas216_done()
2185 spin_lock_irqsave(&info->host_lock, flags); in fas216_done()
2186 if (info->scsi.phase == PHASE_IDLE) in fas216_done()
2188 spin_unlock_irqrestore(&info->host_lock, flags); in fas216_done()
2193 panic("scsi%d.H: null command in fas216_done", in fas216_done()
2194 info->host->host_no); in fas216_done()
2198 * fas216_queue_command - queue a command for adapter to process.
2199 * @SCpnt: Command to queue
2200 * @done: done function to call once command is complete
2202 * Queue a command for adapter to process.
2209 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata; in fas216_queue_command_lck()
2215 "received command (%p)", SCpnt); in fas216_queue_command_lck()
2217 SCpnt->scsi_done = done; in fas216_queue_command_lck()
2218 SCpnt->host_scribble = (void *)fas216_std_done; in fas216_queue_command_lck()
2219 SCpnt->result = 0; in fas216_queue_command_lck()
2223 info->stats.queues += 1; in fas216_queue_command_lck()
2224 SCpnt->tag = 0; in fas216_queue_command_lck()
2226 spin_lock(&info->host_lock); in fas216_queue_command_lck()
2229 * Add command into execute queue and let it complete under in fas216_queue_command_lck()
2232 result = !queue_add_cmd_ordered(&info->queues.issue, SCpnt); in fas216_queue_command_lck()
2235 * If we successfully added the command, in fas216_queue_command_lck()
2238 if (result == 0 && info->scsi.phase == PHASE_IDLE) in fas216_queue_command_lck()
2240 spin_unlock(&info->host_lock); in fas216_queue_command_lck()
2242 fas216_log_target(info, LOG_CONNECT, -1, "queue %s", in fas216_queue_command_lck()
2251 * fas216_internal_done - trigger restart of a waiting thread in fas216_noqueue_command in DEF_SCSI_QCMD()
2252 * @SCpnt: Command to wake in DEF_SCSI_QCMD()
2258 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata; in DEF_SCSI_QCMD()
2262 info->internal_done = 1; in DEF_SCSI_QCMD()
2266 * fas216_noqueue_command - process a command for the adapter.
2267 * @SCpnt: Command to queue
2269 * Queue a command for adapter to process.
2276 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata; in fas216_noqueue_command_lck()
2284 BUG_ON(info->scsi.irq); in fas216_noqueue_command_lck()
2286 info->internal_done = 0; in fas216_noqueue_command_lck()
2290 * This wastes time, since we can't return until the command is in fas216_noqueue_command_lck()
2291 * complete. We can't sleep either since we may get re-entered! in fas216_noqueue_command_lck()
2292 * However, we must re-enable interrupts, or else we'll be in fas216_noqueue_command_lck()
2295 spin_unlock_irq(info->host->host_lock); in fas216_noqueue_command_lck()
2297 while (!info->internal_done) { in fas216_noqueue_command_lck()
2301 * interrupt routine. That way, we keep the command in fas216_noqueue_command_lck()
2307 spin_lock_irq(info->host->host_lock); in fas216_noqueue_command_lck()
2309 spin_unlock_irq(info->host->host_lock); in fas216_noqueue_command_lck()
2313 spin_lock_irq(info->host->host_lock); in fas216_noqueue_command_lck()
2332 del_timer(&info->eh_timer); in DEF_SCSI_QCMD()
2334 if (info->rst_bus_status == 0) in DEF_SCSI_QCMD()
2335 info->rst_bus_status = -1; in DEF_SCSI_QCMD()
2336 if (info->rst_dev_status == 0) in DEF_SCSI_QCMD()
2337 info->rst_dev_status = -1; in DEF_SCSI_QCMD()
2339 wake_up(&info->eh_wait); in DEF_SCSI_QCMD()
2344 res_success, /* command on issue queue */
2345 res_hw_abort /* command on disconnected dev */
2349 * fas216_do_abort - decide how to abort a command
2350 * @SCpnt: command to abort
2352 * Decide how to abort a command.
2360 if (queue_remove_cmd(&info->queues.issue, SCpnt)) { in fas216_find_command()
2362 * The command was on the issue queue, and has not been in fas216_find_command()
2363 * issued yet. We can remove the command from the queue, in fas216_find_command()
2365 * interface know about the command. in fas216_find_command()
2370 } else if (queue_remove_cmd(&info->queues.disconnected, SCpnt)) { in fas216_find_command()
2372 * The command was on the disconnected queue. We must in fas216_find_command()
2379 } else if (info->SCpnt == SCpnt) { in fas216_find_command()
2382 switch (info->scsi.phase) { in fas216_find_command()
2384 * If the interface is idle, and the command is 'disconnectable', in fas216_find_command()
2388 if (info->scsi.disconnectable) { in fas216_find_command()
2389 info->scsi.disconnectable = 0; in fas216_find_command()
2390 info->SCpnt = NULL; in fas216_find_command()
2398 } else if (info->origSCpnt == SCpnt) { in fas216_find_command()
2400 * The command will be executed next, but a command in fas216_find_command()
2405 info->origSCpnt = NULL; in fas216_find_command()
2406 clear_bit(SCpnt->device->id * 8 + in fas216_find_command()
2407 (u8)(SCpnt->device->lun & 0x7), info->busyluns); in fas216_find_command()
2417 * fas216_eh_abort - abort this command
2418 * @SCpnt: command to abort
2420 * Abort this command.
2426 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata; in fas216_eh_abort()
2431 info->stats.aborts += 1; in fas216_eh_abort()
2433 scmd_printk(KERN_WARNING, SCpnt, "abort command\n"); in fas216_eh_abort()
2440 * We found the command, and cleared it out. Either in fas216_eh_abort()
2441 * the command is still known to be executing on the in fas216_eh_abort()
2457 * We are unable to abort the command for some reason. in fas216_eh_abort()
2469 * fas216_eh_device_reset - Reset the device associated with this command
2470 * @SCpnt: command specifing device to reset
2472 * Reset the device associated with this command.
2474 * Notes: We won't be re-entered, so we'll only have one device
2479 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata; in fas216_eh_device_reset()
2481 int i, res = FAILED, target = SCpnt->device->id; in fas216_eh_device_reset()
2485 spin_lock_irqsave(&info->host_lock, flags); in fas216_eh_device_reset()
2494 if (info->SCpnt && !info->scsi.disconnectable && in fas216_eh_device_reset()
2495 info->SCpnt->device->id == SCpnt->device->id) in fas216_eh_device_reset()
2501 * so, we guarantee that we won't touch the command in fas216_eh_device_reset()
2504 queue_remove_all_target(&info->queues.issue, target); in fas216_eh_device_reset()
2505 queue_remove_all_target(&info->queues.disconnected, target); in fas216_eh_device_reset()
2506 if (info->origSCpnt && info->origSCpnt->device->id == target) in fas216_eh_device_reset()
2507 info->origSCpnt = NULL; in fas216_eh_device_reset()
2508 if (info->reqSCpnt && info->reqSCpnt->device->id == target) in fas216_eh_device_reset()
2509 info->reqSCpnt = NULL; in fas216_eh_device_reset()
2511 clear_bit(target * 8 + i, info->busyluns); in fas216_eh_device_reset()
2514 * Hijack this SCSI command structure to send in fas216_eh_device_reset()
2517 SCpnt->host_scribble = (void *)fas216_devicereset_done; in fas216_eh_device_reset()
2519 info->rst_dev_status = 0; in fas216_eh_device_reset()
2520 info->rstSCpnt = SCpnt; in fas216_eh_device_reset()
2522 if (info->scsi.phase == PHASE_IDLE) in fas216_eh_device_reset()
2525 mod_timer(&info->eh_timer, jiffies + 30 * HZ); in fas216_eh_device_reset()
2526 spin_unlock_irqrestore(&info->host_lock, flags); in fas216_eh_device_reset()
2531 wait_event(info->eh_wait, info->rst_dev_status); in fas216_eh_device_reset()
2533 del_timer_sync(&info->eh_timer); in fas216_eh_device_reset()
2534 spin_lock_irqsave(&info->host_lock, flags); in fas216_eh_device_reset()
2535 info->rstSCpnt = NULL; in fas216_eh_device_reset()
2537 if (info->rst_dev_status == 1) in fas216_eh_device_reset()
2541 SCpnt->host_scribble = NULL; in fas216_eh_device_reset()
2542 spin_unlock_irqrestore(&info->host_lock, flags); in fas216_eh_device_reset()
2551 * fas216_eh_bus_reset - Reset the bus associated with the command
2552 * @SCpnt: command specifing bus to reset
2554 * Reset the bus associated with the command.
2560 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata; in fas216_eh_bus_reset()
2567 info->stats.bus_resets += 1; in fas216_eh_bus_reset()
2569 spin_lock_irqsave(&info->host_lock, flags); in fas216_eh_bus_reset()
2575 fas216_writeb(info, REG_CNTL3, info->scsi.cfg[2]); in fas216_eh_bus_reset()
2583 info->rst_bus_status = 0; in fas216_eh_bus_reset()
2586 * For each attached hard-reset device, clear out in fas216_eh_bus_reset()
2587 * all command structures. Leave the running in fas216_eh_bus_reset()
2588 * command in place. in fas216_eh_bus_reset()
2590 shost_for_each_device(SDpnt, info->host) { in fas216_eh_bus_reset()
2593 if (SDpnt->soft_reset) in fas216_eh_bus_reset()
2596 queue_remove_all_target(&info->queues.issue, SDpnt->id); in fas216_eh_bus_reset()
2597 queue_remove_all_target(&info->queues.disconnected, SDpnt->id); in fas216_eh_bus_reset()
2598 if (info->origSCpnt && info->origSCpnt->device->id == SDpnt->id) in fas216_eh_bus_reset()
2599 info->origSCpnt = NULL; in fas216_eh_bus_reset()
2600 if (info->reqSCpnt && info->reqSCpnt->device->id == SDpnt->id) in fas216_eh_bus_reset()
2601 info->reqSCpnt = NULL; in fas216_eh_bus_reset()
2602 info->SCpnt = NULL; in fas216_eh_bus_reset()
2605 clear_bit(SDpnt->id * 8 + i, info->busyluns); in fas216_eh_bus_reset()
2608 info->scsi.phase = PHASE_IDLE; in fas216_eh_bus_reset()
2616 mod_timer(&info->eh_timer, jiffies + HZ); in fas216_eh_bus_reset()
2617 spin_unlock_irqrestore(&info->host_lock, flags); in fas216_eh_bus_reset()
2622 wait_event(info->eh_wait, info->rst_bus_status); in fas216_eh_bus_reset()
2623 del_timer_sync(&info->eh_timer); in fas216_eh_bus_reset()
2626 info->rst_bus_status == 1 ? "success" : "failed"); in fas216_eh_bus_reset()
2628 return info->rst_bus_status == 1 ? SUCCESS : FAILED; in fas216_eh_bus_reset()
2632 * fas216_init_chip - Initialise FAS216 state after reset
2639 unsigned int clock = ((info->ifcfg.clockrate - 1) / 5 + 1) & 7; in fas216_init_chip()
2641 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]); in fas216_init_chip()
2642 fas216_writeb(info, REG_CNTL2, info->scsi.cfg[1]); in fas216_init_chip()
2643 fas216_writeb(info, REG_CNTL3, info->scsi.cfg[2]); in fas216_init_chip()
2644 fas216_writeb(info, REG_STIM, info->ifcfg.select_timeout); in fas216_init_chip()
2646 fas216_writeb(info, REG_STP, info->scsi.async_stp); in fas216_init_chip()
2647 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]); in fas216_init_chip()
2651 * fas216_eh_host_reset - Reset the host associated with this command
2652 * @SCpnt: command specifing host to reset
2654 * Reset the host associated with this command.
2660 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata; in fas216_eh_host_reset()
2662 spin_lock_irq(info->host->host_lock); in fas216_eh_host_reset()
2666 fas216_log(info, LOG_ERROR, "resetting host"); in fas216_eh_host_reset()
2679 spin_unlock_irq(info->host->host_lock); in fas216_eh_host_reset()
2681 spin_lock_irq(info->host->host_lock); in fas216_eh_host_reset()
2690 spin_unlock_irq(info->host->host_lock); in fas216_eh_host_reset()
2795 * fas216_reset_state - Initialise driver internal state
2811 memset(info->busyluns, 0, sizeof(info->busyluns)); in fas216_reset_state()
2812 info->scsi.disconnectable = 0; in fas216_reset_state()
2813 info->scsi.aborting = 0; in fas216_reset_state()
2816 info->device[i].parity_enabled = 0; in fas216_reset_state()
2817 info->device[i].parity_check = 1; in fas216_reset_state()
2823 while (queue_remove(&info->queues.disconnected) != NULL); in fas216_reset_state()
2828 info->SCpnt = NULL; in fas216_reset_state()
2829 info->reqSCpnt = NULL; in fas216_reset_state()
2830 info->rstSCpnt = NULL; in fas216_reset_state()
2831 info->origSCpnt = NULL; in fas216_reset_state()
2835 * fas216_init - initialise FAS/NCR/AMD SCSI structures.
2836 * @host: a driver-specific filled-out structure
2841 int fas216_init(struct Scsi_Host *host) in fas216_init() argument
2843 FAS216_Info *info = (FAS216_Info *)host->hostdata; in fas216_init()
2845 info->magic_start = MAGIC; in fas216_init()
2846 info->magic_end = MAGIC; in fas216_init()
2847 info->host = host; in fas216_init()
2848 info->scsi.cfg[0] = host->this_id | CNTL1_PERE; in fas216_init()
2849 info->scsi.cfg[1] = CNTL2_ENF | CNTL2_S2FE; in fas216_init()
2850 info->scsi.cfg[2] = info->ifcfg.cntl3 | in fas216_init()
2852 info->scsi.async_stp = fas216_syncperiod(info, info->ifcfg.asyncperiod); in fas216_init()
2854 info->rst_dev_status = -1; in fas216_init()
2855 info->rst_bus_status = -1; in fas216_init()
2856 init_waitqueue_head(&info->eh_wait); in fas216_init()
2857 timer_setup(&info->eh_timer, fas216_eh_timer, 0); in fas216_init()
2859 spin_lock_init(&info->host_lock); in fas216_init()
2861 memset(&info->stats, 0, sizeof(info->stats)); in fas216_init()
2863 msgqueue_initialise(&info->scsi.msgs); in fas216_init()
2865 if (!queue_initialise(&info->queues.issue)) in fas216_init()
2866 return -ENOMEM; in fas216_init()
2868 if (!queue_initialise(&info->queues.disconnected)) { in fas216_init()
2869 queue_free(&info->queues.issue); in fas216_init()
2870 return -ENOMEM; in fas216_init()
2877 * fas216_add - initialise FAS/NCR/AMD SCSI ic.
2878 * @host: a driver-specific filled-out structure
2884 int fas216_add(struct Scsi_Host *host, struct device *dev) in fas216_add() argument
2886 FAS216_Info *info = (FAS216_Info *)host->hostdata; in fas216_add()
2889 if (info->ifcfg.clockrate <= 10 || info->ifcfg.clockrate > 40) { in fas216_add()
2891 info->ifcfg.clockrate); in fas216_add()
2892 return -EINVAL; in fas216_add()
2897 info->scsi.type = chip_types[type]; in fas216_add()
2911 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0] | CNTL1_DISR); in fas216_add()
2917 spin_unlock_irq(info->host->host_lock); in fas216_add()
2919 spin_lock_irq(info->host->host_lock); in fas216_add()
2921 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]); in fas216_add()
2926 ret = scsi_add_host(host, dev); in fas216_add()
2930 scsi_scan_host(host); in fas216_add()
2935 void fas216_remove(struct Scsi_Host *host) in fas216_remove() argument
2937 FAS216_Info *info = (FAS216_Info *)host->hostdata; in fas216_remove()
2940 scsi_remove_host(host); in fas216_remove()
2943 scsi_host_put(host); in fas216_remove()
2947 * fas216_release - release all resources for FAS/NCR/AMD SCSI ic.
2948 * @host: a driver-specific filled-out structure
2952 void fas216_release(struct Scsi_Host *host) in fas216_release() argument
2954 FAS216_Info *info = (FAS216_Info *)host->hostdata; in fas216_release()
2956 queue_free(&info->queues.disconnected); in fas216_release()
2957 queue_free(&info->queues.issue); in fas216_release()
2968 info->scsi.type, info->scsi.io_base, in fas216_print_host()
2969 info->scsi.irq, info->scsi.dma); in fas216_print_host()
2975 "Command Statistics:\n" in fas216_print_stats()
2985 " Host resets: %u\n", in fas216_print_stats()
2986 info->stats.queues, info->stats.removes, in fas216_print_stats()
2987 info->stats.fins, info->stats.reads, in fas216_print_stats()
2988 info->stats.writes, info->stats.miscs, in fas216_print_stats()
2989 info->stats.disconnects, info->stats.aborts, in fas216_print_stats()
2990 info->stats.bus_resets, info->stats.host_resets); in fas216_print_stats()
3000 shost_for_each_device(scd, info->host) { in fas216_print_devices()
3001 dev = &info->device[scd->id]; in fas216_print_devices()
3002 seq_printf(m, " %d/%llu ", scd->id, scd->lun); in fas216_print_devices()
3003 if (scd->tagged_supported) in fas216_print_devices()
3005 scd->simple_tags ? "en" : "dis", in fas216_print_devices()
3006 scd->current_tag); in fas216_print_devices()
3010 seq_printf(m, "%3sabled ", dev->parity_enabled ? "en" : "dis"); in fas216_print_devices()
3012 if (dev->sof) in fas216_print_devices()
3014 dev->sof, dev->period * 4); in fas216_print_devices()