Lines Matching refs:info
15 * FAS216_Info info;
141 static inline unsigned char fas216_readb(FAS216_Info *info, unsigned int reg)
143 unsigned int off = reg << info->scsi.io_shift;
144 return readb(info->scsi.io_base + off);
147 static inline void fas216_writeb(FAS216_Info *info, unsigned int reg, unsigned int val)
149 unsigned int off = reg << info->scsi.io_shift;
150 writeb(val, info->scsi.io_base + off);
153 static void fas216_dumpstate(FAS216_Info *info)
157 is = fas216_readb(info, REG_IS);
158 stat = fas216_readb(info, REG_STAT);
159 inst = fas216_readb(info, REG_INST);
163 fas216_readb(info, REG_CTCL),
164 fas216_readb(info, REG_CTCM),
165 fas216_readb(info, REG_CMD), stat, inst, is,
166 fas216_readb(info, REG_CFIS));
168 fas216_readb(info, REG_CNTL1),
169 fas216_readb(info, REG_CNTL2),
170 fas216_readb(info, REG_CNTL3),
171 fas216_readb(info, REG_CTCH));
182 static void fas216_dumpinfo(FAS216_Info *info)
192 info->magic_start, info->host, info->SCpnt,
193 info->origSCpnt);
195 info->scsi.io_shift, info->scsi.irq,
196 info->scsi.cfg[0], info->scsi.cfg[1], info->scsi.cfg[2],
197 info->scsi.cfg[3]);
199 info->scsi.type, info->scsi.phase);
200 print_SCp(&info->scsi.SCp, " SCp={ ", " }\n");
202 info->scsi.async_stp,
203 info->scsi.disconnectable, info->scsi.aborting);
206 info->stats.queues, info->stats.removes, info->stats.fins,
207 info->stats.reads, info->stats.writes, info->stats.miscs,
208 info->stats.disconnects, info->stats.aborts, info->stats.bus_resets,
209 info->stats.host_resets);
211 info->ifcfg.clockrate, info->ifcfg.select_timeout,
212 info->ifcfg.asyncperiod, info->ifcfg.sync_max_depth);
215 i, info->busyluns[i], i,
216 info->device[i].disconnect_ok, info->device[i].stp,
217 info->device[i].sof, info->device[i].sync_state);
220 info->dma.transfer_type, info->dma.setup,
221 info->dma.pseudo, info->dma.stop);
223 info->internal_done, info->magic_end);
226 static void __fas216_checkmagic(FAS216_Info *info, const char *func)
229 if (info->magic_start != MAGIC) {
233 if (info->magic_end != MAGIC) {
238 fas216_dumpinfo(info);
242 #define fas216_checkmagic(info) __fas216_checkmagic((info), __func__)
244 #define fas216_checkmagic(info)
259 static const char *fas216_drv_phase(FAS216_Info *info)
275 if (info->scsi.phase < ARRAY_SIZE(phases) &&
276 phases[info->scsi.phase])
277 return phases[info->scsi.phase];
281 static char fas216_target(FAS216_Info *info)
283 if (info->SCpnt)
284 return '0' + info->SCpnt->device->id;
290 fas216_do_log(FAS216_Info *info, char target, char *fmt, va_list ap)
295 printk("scsi%d.%c: %s", info->host->host_no, target, buf);
298 static void fas216_log_command(FAS216_Info *info, int level,
307 fas216_do_log(info, '0' + SCpnt->device->id, fmt, args);
314 fas216_log_target(FAS216_Info *info, int level, int target, char *fmt, ...)
327 fas216_do_log(info, target, fmt, args);
333 static void fas216_log(FAS216_Info *info, int level, char *fmt, ...)
341 fas216_do_log(info, fas216_target(info), fmt, args);
365 static void fas216_cmd(FAS216_Info *info, unsigned int command)
372 fas216_writeb(info, REG_CMD, command);
402 static void fas216_done(FAS216_Info *info, unsigned int result);
406 * @info: interface to search
412 fas216_get_last_msg(FAS216_Info *info, int pos)
418 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
430 fas216_log(info, LOG_MESSAGES,
438 * @info: state structure for interface connected to device
444 static int fas216_syncperiod(FAS216_Info *info, int ns)
446 int value = (info->ifcfg.clockrate * ns) / 1000;
448 fas216_checkmagic(info);
460 * @info: state structure for interface connected to device
468 static void fas216_set_sync(FAS216_Info *info, int target)
472 fas216_writeb(info, REG_SOF, info->device[target].sof);
473 fas216_writeb(info, REG_STP, info->device[target].stp);
475 cntl3 = info->scsi.cfg[2];
476 if (info->device[target].period >= (200 / 4))
479 fas216_writeb(info, REG_CNTL3, cntl3);
508 * @info: state structure for interface
513 static void fas216_handlesync(FAS216_Info *info, char *msg)
515 struct fas216_device *dev = &info->device[info->SCpnt->device->id];
554 fas216_cmd(info, CMD_SETATN);
555 if (msg[4] > info->ifcfg.sync_max_depth)
556 msg[4] = info->ifcfg.sync_max_depth;
557 if (msg[3] < 1000 / info->ifcfg.clockrate)
558 msg[3] = 1000 / info->ifcfg.clockrate;
560 msgqueue_flush(&info->scsi.msgs);
561 msgqueue_addmsg(&info->scsi.msgs, 5,
564 info->scsi.phase = PHASE_MSGOUT_EXPECT;
581 if (msg[4] <= info->ifcfg.sync_max_depth &&
582 msg[3] >= 1000 / info->ifcfg.clockrate) {
597 dev->stp = fas216_syncperiod(info, msg[3] * 4);
598 fas216_set_sync(info, info->SCpnt->device->id);
602 fas216_cmd(info, CMD_SETATN);
603 msgqueue_flush(&info->scsi.msgs);
604 msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT);
605 info->scsi.phase = PHASE_MSGOUT_EXPECT;
609 dev->period = info->ifcfg.asyncperiod / 4;
611 dev->stp = info->scsi.async_stp;
612 fas216_set_sync(info, info->SCpnt->device->id);
622 * @info: interface's local pointer to update
627 static void fas216_updateptrs(FAS216_Info *info, int bytes_transferred)
629 struct scsi_pointer *SCp = &info->scsi.SCp;
631 fas216_checkmagic(info);
647 info->host->host_no, '0' + info->SCpnt->device->id);
661 * @info: interface to transfer data to/from
667 static void fas216_pio(FAS216_Info *info, fasdmadir_t direction)
669 struct scsi_pointer *SCp = &info->scsi.SCp;
671 fas216_checkmagic(info);
674 fas216_writeb(info, REG_FF, get_next_SCp_byte(SCp));
676 put_next_SCp_byte(SCp, fas216_readb(info, REG_FF));
682 static void fas216_set_stc(FAS216_Info *info, unsigned int length)
684 fas216_writeb(info, REG_STCL, length);
685 fas216_writeb(info, REG_STCM, length >> 8);
686 fas216_writeb(info, REG_STCH, length >> 16);
689 static unsigned int fas216_get_ctc(FAS216_Info *info)
691 return fas216_readb(info, REG_CTCL) +
692 (fas216_readb(info, REG_CTCM) << 8) +
693 (fas216_readb(info, REG_CTCH) << 16);
698 * @info: interface to clean up
703 static void fas216_cleanuptransfer(FAS216_Info *info)
706 fasdmatype_t dmatype = info->dma.transfer_type;
708 info->dma.transfer_type = fasdma_none;
717 total = info->scsi.SCp.phase;
719 total = info->scsi.SCp.this_residual;
721 residual = fas216_get_ctc(info);
723 fifo = fas216_readb(info, REG_CFIS) & CFIS_CF;
725 fas216_log(info, LOG_BUFFER, "cleaning up from previous "
735 if (info->scsi.phase == PHASE_DATAOUT)
738 fas216_updateptrs(info, total - residual);
743 * @info: interface from which device disconnected from
747 static void fas216_transfer(FAS216_Info *info)
752 fas216_log(info, LOG_BUFFER,
754 info->scsi.SCp.ptr, info->scsi.SCp.this_residual,
755 info->scsi.SCp.phase);
757 if (!info->scsi.SCp.ptr) {
758 fas216_log(info, LOG_ERROR, "null buffer passed to "
760 print_SCp(&info->scsi.SCp, "SCp: ", "\n");
761 print_SCp(&info->SCpnt->SCp, "Cmnd SCp: ", "\n");
770 if (info->device[info->SCpnt->device->id].sof)
775 if (info->scsi.phase == PHASE_DATAOUT)
780 if (info->dma.setup)
781 dmatype = info->dma.setup(info->host, &info->scsi.SCp,
783 info->dma.transfer_type = dmatype;
786 fas216_set_stc(info, info->scsi.SCp.phase);
788 fas216_set_stc(info, info->scsi.SCp.this_residual);
792 fas216_log(info, LOG_BUFFER, "PIO transfer");
793 fas216_writeb(info, REG_SOF, 0);
794 fas216_writeb(info, REG_STP, info->scsi.async_stp);
795 fas216_cmd(info, CMD_TRANSFERINFO);
796 fas216_pio(info, direction);
800 fas216_log(info, LOG_BUFFER, "pseudo transfer");
801 fas216_cmd(info, CMD_TRANSFERINFO | CMD_WITHDMA);
802 info->dma.pseudo(info->host, &info->scsi.SCp,
803 direction, info->SCpnt->transfersize);
807 fas216_log(info, LOG_BUFFER, "block dma transfer");
808 fas216_cmd(info, CMD_TRANSFERINFO | CMD_WITHDMA);
812 fas216_log(info, LOG_BUFFER, "total dma transfer");
813 fas216_cmd(info, CMD_TRANSFERINFO | CMD_WITHDMA);
817 fas216_log(info, LOG_BUFFER | LOG_ERROR,
825 * @info: interface from which device disconnected from
829 static void fas216_stoptransfer(FAS216_Info *info)
831 fas216_checkmagic(info);
833 if (info->dma.transfer_type == fasdma_real_all ||
834 info->dma.transfer_type == fasdma_real_block)
835 info->dma.stop(info->host, &info->scsi.SCp);
837 fas216_cleanuptransfer(info);
839 if (info->scsi.phase == PHASE_DATAIN) {
847 fifo = fas216_readb(info, REG_CFIS) & CFIS_CF;
848 while (fifo && info->scsi.SCp.ptr) {
849 *info->scsi.SCp.ptr = fas216_readb(info, REG_FF);
850 fas216_updateptrs(info, 1);
858 fas216_cmd(info, CMD_FLUSHFIFO);
862 static void fas216_aborttransfer(FAS216_Info *info)
864 fas216_checkmagic(info);
866 if (info->dma.transfer_type == fasdma_real_all ||
867 info->dma.transfer_type == fasdma_real_block)
868 info->dma.stop(info->host, &info->scsi.SCp);
870 info->dma.transfer_type = fasdma_none;
871 fas216_cmd(info, CMD_FLUSHFIFO);
874 static void fas216_kick(FAS216_Info *info);
878 * @info: interface from which device disconnected from
882 static void fas216_disconnect_intr(FAS216_Info *info)
886 fas216_checkmagic(info);
888 fas216_log(info, LOG_CONNECT, "disconnect phase=%02x",
889 info->scsi.phase);
891 msgqueue_flush(&info->scsi.msgs);
893 switch (info->scsi.phase) {
896 fas216_done(info, DID_NO_CONNECT);
900 info->scsi.disconnectable = 1;
901 info->scsi.phase = PHASE_IDLE;
902 info->stats.disconnects += 1;
903 spin_lock_irqsave(&info->host_lock, flags);
904 if (info->scsi.phase == PHASE_IDLE)
905 fas216_kick(info);
906 spin_unlock_irqrestore(&info->host_lock, flags);
910 fas216_done(info, DID_OK);
914 if (fas216_get_last_msg(info, info->scsi.msgin_fifo) == ABORT) {
915 info->scsi.aborting = 0;
916 fas216_done(info, DID_ABORT);
923 info->host->host_no, fas216_target(info), fas216_drv_phase(info));
925 fas216_stoptransfer(info);
926 fas216_done(info, DID_ERROR);
933 * @info: interface which was reselected
938 fas216_reselected_intr(FAS216_Info *info)
944 fas216_checkmagic(info);
946 WARN_ON(info->scsi.phase == PHASE_SELECTION ||
947 info->scsi.phase == PHASE_SELSTEPS);
949 cfis = fas216_readb(info, REG_CFIS);
951 fas216_log(info, LOG_CONNECT, "reconnect phase=%02x cfis=%02x",
952 info->scsi.phase, cfis);
958 info->host->host_no);
963 msg[i] = fas216_readb(info, REG_FF);
965 if (!(msg[0] & (1 << info->host->this_id)) ||
969 target = msg[0] & ~(1 << info->host->this_id);
982 fas216_writeb(info, REG_SDID, target);
983 fas216_set_sync(info, target);
984 msgqueue_flush(&info->scsi.msgs);
986 fas216_log(info, LOG_CONNECT, "Reconnected: target %1x lun %1x tag %02x",
989 if (info->scsi.disconnectable && info->SCpnt) {
990 info->scsi.disconnectable = 0;
991 if (info->SCpnt->device->id == target &&
992 info->SCpnt->device->lun == lun &&
993 info->SCpnt->tag == tag) {
994 fas216_log(info, LOG_CONNECT, "reconnected previously executing command");
996 queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt);
997 fas216_log(info, LOG_CONNECT, "had to move command to disconnected queue");
998 info->SCpnt = NULL;
1001 if (!info->SCpnt) {
1002 info->SCpnt = queue_remove_tgtluntag(&info->queues.disconnected,
1004 fas216_log(info, LOG_CONNECT, "had to get command");
1007 if (info->SCpnt) {
1011 info->scsi.SCp = info->SCpnt->SCp;
1013 fas216_log(info, LOG_CONNECT, "data pointers: [%p, %X]",
1014 info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
1015 info->scsi.phase = PHASE_MSGIN;
1023 fas216_cmd(info, CMD_SETATN);
1027 msgqueue_addmsg(&info->scsi.msgs, 2, ABORT_TAG, tag);
1030 msgqueue_addmsg(&info->scsi.msgs, 1, ABORT);
1031 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1032 info->scsi.aborting = 1;
1035 fas216_cmd(info, CMD_MSGACCEPTED);
1040 info->host->host_no);
1045 fas216_cmd(info, CMD_SETATN);
1046 msgqueue_flush(&info->scsi.msgs);
1047 msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
1048 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1049 fas216_cmd(info, CMD_MSGACCEPTED);
1052 static void fas216_parse_message(FAS216_Info *info, unsigned char *message, int msglen)
1063 info->host->host_no, fas216_target(info));
1078 info->SCpnt->SCp = info->scsi.SCp;
1079 info->SCpnt->SCp.sent_command = 0;
1080 fas216_log(info, LOG_CONNECT | LOG_MESSAGES | LOG_BUFFER,
1082 info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
1092 info->scsi.SCp = info->SCpnt->SCp;
1093 fas216_log(info, LOG_CONNECT | LOG_MESSAGES | LOG_BUFFER,
1095 info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
1102 info->scsi.phase = PHASE_MSGIN_DISCONNECT;
1109 switch (fas216_get_last_msg(info, info->scsi.msgin_fifo)) {
1111 fas216_handlesync(info, message);
1115 fas216_log(info, 0, "reject, last message 0x%04x",
1116 fas216_get_last_msg(info, info->scsi.msgin_fifo));
1129 fas216_handlesync(info, message);
1143 fas216_log(info, 0, "unrecognised message, rejecting");
1144 printk("scsi%d.%c: message was", info->host->host_no, fas216_target(info));
1154 fas216_cmd(info, CMD_NOP);
1155 fas216_dumpstate(info);
1156 fas216_cmd(info, CMD_SETATN);
1157 msgqueue_flush(&info->scsi.msgs);
1158 msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT);
1159 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1160 fas216_dumpstate(info);
1163 static int fas216_wait_cmd(FAS216_Info *info, int cmd)
1168 fas216_cmd(info, cmd);
1171 stat = fas216_readb(info, REG_STAT);
1180 static int fas216_get_msg_byte(FAS216_Info *info)
1182 unsigned int stat = fas216_wait_cmd(info, CMD_MSGACCEPTED);
1190 fas216_readb(info, REG_INST);
1192 stat = fas216_wait_cmd(info, CMD_TRANSFERINFO);
1203 fas216_readb(info, REG_INST);
1205 return fas216_readb(info, REG_FF);
1208 fas216_log(info, LOG_ERROR, "timed out waiting for message byte");
1212 fas216_log(info, LOG_ERROR, "unexpected phase change: status = %02x", stat);
1216 fas216_log(info, LOG_ERROR, "parity error during message in phase");
1222 * @info: interface which caused function done interrupt
1226 static void fas216_message(FAS216_Info *info)
1228 unsigned char *message = info->scsi.message;
1232 fas216_checkmagic(info);
1234 message[0] = fas216_readb(info, REG_FF);
1237 msgbyte = fas216_get_msg_byte(info);
1243 msgbyte = fas216_get_msg_byte(info);
1261 info->host->host_no, fas216_target(info));
1268 fas216_parse_message(info, message, msglen);
1269 fas216_cmd(info, CMD_MSGACCEPTED);
1273 fas216_cmd(info, CMD_SETATN);
1274 msgqueue_flush(&info->scsi.msgs);
1275 msgqueue_addmsg(&info->scsi.msgs, 1, MSG_PARITY_ERROR);
1276 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1277 fas216_cmd(info, CMD_MSGACCEPTED);
1283 * @info: interface which caused bus service
1287 static void fas216_send_command(FAS216_Info *info)
1291 fas216_checkmagic(info);
1293 fas216_cmd(info, CMD_NOP|CMD_WITHDMA);
1294 fas216_cmd(info, CMD_FLUSHFIFO);
1297 for (i = info->scsi.SCp.sent_command; i < info->SCpnt->cmd_len; i++)
1298 fas216_writeb(info, REG_FF, info->SCpnt->cmnd[i]);
1300 fas216_cmd(info, CMD_TRANSFERINFO);
1302 info->scsi.phase = PHASE_COMMAND;
1307 * @info: interface which caused bus service
1312 static void fas216_send_messageout(FAS216_Info *info, int start)
1314 unsigned int tot_msglen = msgqueue_msglength(&info->scsi.msgs);
1316 fas216_checkmagic(info);
1318 fas216_cmd(info, CMD_FLUSHFIFO);
1324 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
1328 fas216_writeb(info, REG_FF, msg->msg[i]);
1330 msg->fifo = tot_msglen - (fas216_readb(info, REG_CFIS) & CFIS_CF);
1334 fas216_writeb(info, REG_FF, NOP);
1336 fas216_cmd(info, CMD_TRANSFERINFO);
1338 info->scsi.phase = PHASE_MSGOUT;
1343 * @info: interface which caused bus service interrupt
1349 static void fas216_busservice_intr(FAS216_Info *info, unsigned int stat, unsigned int is)
1351 fas216_checkmagic(info);
1353 fas216_log(info, LOG_BUSSERVICE,
1355 stat, is, info->scsi.phase);
1357 switch (info->scsi.phase) {
1383 fas216_cmd(info, CMD_NOP);
1389 switch (STATE(stat & STAT_BUSMASK, info->scsi.phase)) {
1394 info->scsi.phase = PHASE_DATAIN;
1395 fas216_transfer(info);
1400 fas216_cleanuptransfer(info);
1401 fas216_transfer(info);
1408 fas216_cmd(info, CMD_FLUSHFIFO);
1409 info->scsi.phase = PHASE_DATAOUT;
1410 fas216_transfer(info);
1415 fas216_stoptransfer(info);
1422 fas216_cmd(info, CMD_INITCMDCOMPLETE);
1423 info->scsi.phase = PHASE_STATUS;
1428 fas216_stoptransfer(info);
1434 info->scsi.msgin_fifo = fas216_readb(info, REG_CFIS) & CFIS_CF;
1435 fas216_cmd(info, CMD_FLUSHFIFO);
1436 fas216_cmd(info, CMD_TRANSFERINFO);
1437 info->scsi.phase = PHASE_MSGIN;
1441 info->scsi.msgin_fifo = fas216_readb(info, REG_CFIS) & CFIS_CF;
1442 fas216_cmd(info, CMD_TRANSFERINFO);
1447 fas216_send_command(info);
1448 info->scsi.phase = PHASE_COMMAND;
1456 fas216_send_messageout(info, 1);
1470 if (info->device[info->SCpnt->device->id].parity_check) {
1475 info->device[info->SCpnt->device->id].parity_check = 0;
1476 info->device[info->SCpnt->device->id].parity_enabled = 1;
1477 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]);
1480 if (msgqueue_msglength(&info->scsi.msgs) > 1)
1481 fas216_cmd(info, CMD_SETATN);
1488 fas216_send_messageout(info, 0);
1504 info->host->host_no, fas216_target(info));
1505 fas216_cmd(info, CMD_SETATN);
1506 fas216_set_stc(info, 15);
1507 fas216_cmd(info, CMD_PADBYTES | CMD_WITHDMA);
1508 msgqueue_flush(&info->scsi.msgs);
1509 msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
1510 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1514 if (info->scsi.phase == PHASE_MSGIN_DISCONNECT) {
1516 info->host->host_no, fas216_target(info),
1518 msgqueue_flush(&info->scsi.msgs);
1519 fas216_cmd(info, CMD_SETATN);
1520 msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
1521 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1522 info->scsi.aborting = 1;
1523 fas216_cmd(info, CMD_TRANSFERINFO);
1527 info->host->host_no, fas216_target(info),
1529 fas216_drv_phase(info));
1534 fas216_log(info, 0, "bus service at step %d?", is & IS_BITS);
1535 fas216_dumpstate(info);
1538 fas216_done(info, DID_ERROR);
1543 * @info: interface which caused function done interrupt
1549 static void fas216_funcdone_intr(FAS216_Info *info, unsigned int stat, unsigned int is)
1551 unsigned int fifo_len = fas216_readb(info, REG_CFIS) & CFIS_CF;
1553 fas216_checkmagic(info);
1555 fas216_log(info, LOG_FUNCTIONDONE,
1557 stat, is, info->scsi.phase);
1559 switch (info->scsi.phase) {
1562 fas216_log(info, 0, "odd number of bytes in FIFO: %d", fifo_len);
1567 info->scsi.SCp.Status = fas216_readb(info, REG_FF);
1568 info->scsi.SCp.Message = fas216_readb(info, REG_FF);
1569 info->scsi.phase = PHASE_DONE;
1570 fas216_cmd(info, CMD_MSGACCEPTED);
1580 info->scsi.msgin_fifo = fifo_len;
1581 fas216_message(info);
1587 fas216_log(info, 0, "internal phase %s for function done?"
1589 fas216_target(info), fas216_drv_phase(info));
1593 static void fas216_bus_reset(FAS216_Info *info)
1598 msgqueue_flush(&info->scsi.msgs);
1603 if (info->ifcfg.capabilities & (FASCAP_DMA|FASCAP_PSEUDODMA))
1607 info->scsi.phase = PHASE_IDLE;
1608 info->SCpnt = NULL; /* bug! */
1609 memset(&info->scsi.SCp, 0, sizeof(info->scsi.SCp));
1612 info->device[i].disconnect_ok = info->ifcfg.disconnect_ok;
1613 info->device[i].sync_state = sync_state;
1614 info->device[i].period = info->ifcfg.asyncperiod / 4;
1615 info->device[i].stp = info->scsi.async_stp;
1616 info->device[i].sof = 0;
1617 info->device[i].wide_xfer = 0;
1620 info->rst_bus_status = 1;
1621 wake_up(&info->eh_wait);
1626 * @info: interface to service
1630 irqreturn_t fas216_intr(FAS216_Info *info)
1635 fas216_checkmagic(info);
1637 stat = fas216_readb(info, REG_STAT);
1638 is = fas216_readb(info, REG_IS);
1639 inst = fas216_readb(info, REG_INST);
1641 add_debug_list(stat, is, inst, info->scsi.phase);
1645 fas216_log(info, 0, "bus reset detected");
1646 fas216_bus_reset(info);
1647 scsi_report_bus_reset(info->host, 0);
1649 fas216_log(info, LOG_ERROR, "illegal command given\n");
1650 fas216_dumpstate(info);
1653 fas216_disconnect_intr(info);
1655 fas216_reselected_intr(info);
1657 fas216_busservice_intr(info, stat, is);
1659 fas216_funcdone_intr(info, stat, is);
1661 fas216_log(info, 0, "unknown interrupt received:"
1663 fas216_drv_phase(info), inst, is, stat);
1669 static void __fas216_start_command(FAS216_Info *info, struct scsi_cmnd *SCpnt)
1674 fas216_set_stc(info, 0);
1675 fas216_cmd(info, CMD_NOP | CMD_WITHDMA);
1678 fas216_cmd(info, CMD_FLUSHFIFO);
1681 fas216_writeb(info, REG_SDID, BUSID(SCpnt->device->id));
1682 fas216_writeb(info, REG_STIM, info->ifcfg.select_timeout);
1685 fas216_set_sync(info, SCpnt->device->id);
1687 tot_msglen = msgqueue_msglength(&info->scsi.msgs);
1695 info->host->host_no, '0' + SCpnt->device->id);
1696 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
1713 info->scsi.phase = PHASE_SELSTEPS;
1716 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
1718 fas216_writeb(info, REG_FF, msg->msg[i]);
1719 msg->fifo = tot_msglen - (fas216_readb(info, REG_CFIS) & CFIS_CF);
1724 fas216_writeb(info, REG_FF, SCpnt->cmnd[i]);
1727 fas216_cmd(info, CMD_SELECTATN);
1729 fas216_cmd(info, CMD_SELECTATN3);
1736 struct message *msg = msgqueue_getmsg(&info->scsi.msgs, 0);
1738 fas216_writeb(info, REG_FF, msg->msg[0]);
1741 fas216_cmd(info, CMD_SELECTATNSTOP);
1750 static int parity_test(FAS216_Info *info, int target)
1754 info->device[target].parity_check = 0;
1758 return info->device[target].parity_check;
1761 static void fas216_start_command(FAS216_Info *info, struct scsi_cmnd *SCpnt)
1768 info->scsi.phase = PHASE_SELECTION;
1769 info->scsi.SCp = SCpnt->SCp;
1770 info->SCpnt = SCpnt;
1771 info->dma.transfer_type = fasdma_none;
1773 if (parity_test(info, SCpnt->device->id))
1774 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0] | CNTL1_PTE);
1776 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]);
1782 info->device[SCpnt->device->id].disconnect_ok;
1787 msgqueue_flush(&info->scsi.msgs);
1788 msgqueue_addmsg(&info->scsi.msgs, 1, IDENTIFY(disconnect_ok, SCpnt->device->lun));
1794 msgqueue_addmsg(&info->scsi.msgs, 2, SIMPLE_QUEUE_TAG, SCpnt->tag);
1798 if ((info->device[SCpnt->device->id].sync_state == neg_wait ||
1799 info->device[SCpnt->device->id].sync_state == neg_complete) &&
1802 info->device[SCpnt->device->id].sync_state = neg_inprogress;
1803 msgqueue_addmsg(&info->scsi.msgs, 5,
1805 1000 / info->ifcfg.clockrate,
1806 info->ifcfg.sync_max_depth);
1812 __fas216_start_command(info, SCpnt);
1815 static void fas216_allocate_tag(FAS216_Info *info, struct scsi_cmnd *SCpnt)
1830 (u8)(SCpnt->device->lun & 0x7), info->busyluns);
1832 info->stats.removes += 1;
1837 info->stats.writes += 1;
1842 info->stats.reads += 1;
1845 info->stats.miscs += 1;
1850 static void fas216_do_bus_device_reset(FAS216_Info *info,
1858 info->scsi.phase = PHASE_SELECTION;
1859 info->scsi.SCp = SCpnt->SCp;
1860 info->SCpnt = SCpnt;
1861 info->dma.transfer_type = fasdma_none;
1863 fas216_log(info, LOG_ERROR, "sending bus device reset");
1865 msgqueue_flush(&info->scsi.msgs);
1866 msgqueue_addmsg(&info->scsi.msgs, 1, BUS_DEVICE_RESET);
1869 fas216_set_stc(info, 0);
1870 fas216_cmd(info, CMD_NOP | CMD_WITHDMA);
1873 fas216_cmd(info, CMD_FLUSHFIFO);
1876 fas216_writeb(info, REG_SDID, BUSID(SCpnt->device->id));
1877 fas216_writeb(info, REG_STIM, info->ifcfg.select_timeout);
1880 fas216_set_sync(info, SCpnt->device->id);
1882 msg = msgqueue_getmsg(&info->scsi.msgs, 0);
1884 fas216_writeb(info, REG_FF, BUS_DEVICE_RESET);
1887 fas216_cmd(info, CMD_SELECTATNSTOP);
1892 * @info: our host interface to kick
1897 static void fas216_kick(FAS216_Info *info)
1905 fas216_checkmagic(info);
1911 if (info->rstSCpnt) {
1912 SCpnt = info->rstSCpnt;
1918 if (info->reqSCpnt) {
1919 SCpnt = info->reqSCpnt;
1920 info->reqSCpnt = NULL;
1924 if (info->origSCpnt) {
1925 SCpnt = info->origSCpnt;
1926 info->origSCpnt = NULL;
1932 SCpnt = queue_remove_exclude(&info->queues.issue,
1933 info->busyluns);
1943 fas216_cmd(info, CMD_ENABLESEL);
1950 fas216_cmd(info, CMD_DISABLESEL);
1952 if (info->scsi.disconnectable && info->SCpnt) {
1953 fas216_log(info, LOG_CONNECT,
1955 info->SCpnt->device->id);
1956 queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt);
1957 info->scsi.disconnectable = 0;
1958 info->SCpnt = NULL;
1961 fas216_log_command(info, LOG_CONNECT | LOG_MESSAGES, SCpnt,
1966 fas216_allocate_tag(info, SCpnt);
1969 fas216_start_command(info, SCpnt);
1972 fas216_do_bus_device_reset(info, SCpnt);
1976 fas216_log(info, LOG_CONNECT, "select: data pointers [%p, %X]",
1977 info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
1988 static void fas216_devicereset_done(FAS216_Info *info, struct scsi_cmnd *SCpnt,
1991 fas216_log(info, LOG_ERROR, "fas216 device reset complete");
1993 info->rstSCpnt = NULL;
1994 info->rst_dev_status = 1;
1995 wake_up(&info->eh_wait);
2000 * @info: interface that completed
2006 static void fas216_rq_sns_done(FAS216_Info *info, struct scsi_cmnd *SCpnt,
2009 fas216_log_target(info, LOG_CONNECT, SCpnt->device->id,
2020 //printk("scsi%d.%c: sense buffer: ", info->host->host_no, '0' + SCpnt->device->id);
2028 scsi_eh_restore_cmnd(SCpnt, &info->ses);
2034 * @info: interface that completed
2041 fas216_std_done(FAS216_Info *info, struct scsi_cmnd *SCpnt, unsigned int result)
2043 info->stats.fins += 1;
2045 SCpnt->result = result << 16 | info->scsi.SCp.Message << 8 |
2046 info->scsi.SCp.Status;
2048 fas216_log_command(info, LOG_CONNECT, SCpnt,
2080 if (info->scsi.SCp.ptr) {
2090 SCpnt->result, info->scsi.SCp.ptr,
2091 info->scsi.SCp.this_residual);
2105 info->host->host_no);
2112 scsi_eh_prep_cmnd(SCpnt, &info->ses, NULL, 0, ~0);
2113 fas216_log_target(info, LOG_CONNECT, SCpnt->device->id,
2126 if (info->reqSCpnt)
2128 info->host->host_no, '0' + SCpnt->device->id);
2129 info->reqSCpnt = SCpnt;
2134 * @info: interface that completed
2139 static void fas216_done(FAS216_Info *info, unsigned int result)
2145 fas216_checkmagic(info);
2147 if (!info->SCpnt)
2150 SCpnt = info->SCpnt;
2151 info->SCpnt = NULL;
2152 info->scsi.phase = PHASE_IDLE;
2154 if (info->scsi.aborting) {
2155 fas216_log(info, 0, "uncaught abort - returning DID_ABORT");
2157 info->scsi.aborting = 0;
2164 if (info->scsi.SCp.ptr && info->scsi.SCp.this_residual == 0) {
2167 info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
2168 info->scsi.SCp.ptr = NULL;
2177 info->device[SCpnt->device->id].parity_check = 0;
2179 (u8)(SCpnt->device->lun & 0x7), info->busyluns);
2182 fn(info, SCpnt, result);
2184 if (info->scsi.irq) {
2185 spin_lock_irqsave(&info->host_lock, flags);
2186 if (info->scsi.phase == PHASE_IDLE)
2187 fas216_kick(info);
2188 spin_unlock_irqrestore(&info->host_lock, flags);
2194 info->host->host_no);
2209 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2212 fas216_checkmagic(info);
2214 fas216_log_command(info, LOG_CONNECT, SCpnt,
2223 info->stats.queues += 1;
2226 spin_lock(&info->host_lock);
2232 result = !queue_add_cmd_ordered(&info->queues.issue, SCpnt);
2238 if (result == 0 && info->scsi.phase == PHASE_IDLE)
2239 fas216_kick(info);
2240 spin_unlock(&info->host_lock);
2242 fas216_log_target(info, LOG_CONNECT, -1, "queue %s",
2258 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2260 fas216_checkmagic(info);
2262 info->internal_done = 1;
2276 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2278 fas216_checkmagic(info);
2284 BUG_ON(info->scsi.irq);
2286 info->internal_done = 0;
2295 spin_unlock_irq(info->host->host_lock);
2297 while (!info->internal_done) {
2306 if (fas216_readb(info, REG_STAT) & STAT_INT) {
2307 spin_lock_irq(info->host->host_lock);
2308 fas216_intr(info);
2309 spin_unlock_irq(info->host->host_lock);
2313 spin_lock_irq(info->host->host_lock);
2328 FAS216_Info *info = from_timer(info, t, eh_timer);
2330 fas216_log(info, LOG_ERROR, "error handling timed out\n");
2332 del_timer(&info->eh_timer);
2334 if (info->rst_bus_status == 0)
2335 info->rst_bus_status = -1;
2336 if (info->rst_dev_status == 0)
2337 info->rst_dev_status = -1;
2339 wake_up(&info->eh_wait);
2355 static enum res_find fas216_find_command(FAS216_Info *info,
2360 if (queue_remove_cmd(&info->queues.issue, SCpnt)) {
2370 } else if (queue_remove_cmd(&info->queues.disconnected, SCpnt)) {
2379 } else if (info->SCpnt == SCpnt) {
2382 switch (info->scsi.phase) {
2388 if (info->scsi.disconnectable) {
2389 info->scsi.disconnectable = 0;
2390 info->SCpnt = NULL;
2398 } else if (info->origSCpnt == SCpnt) {
2405 info->origSCpnt = NULL;
2407 (u8)(SCpnt->device->lun & 0x7), info->busyluns);
2426 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2429 fas216_checkmagic(info);
2431 info->stats.aborts += 1;
2436 fas216_dumpstate(info);
2438 switch (fas216_find_command(info, SCpnt)) {
2479 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2483 fas216_log(info, LOG_ERROR, "device reset for target %d", target);
2485 spin_lock_irqsave(&info->host_lock, flags);
2494 if (info->SCpnt && !info->scsi.disconnectable &&
2495 info->SCpnt->device->id == SCpnt->device->id)
2504 queue_remove_all_target(&info->queues.issue, target);
2505 queue_remove_all_target(&info->queues.disconnected, target);
2506 if (info->origSCpnt && info->origSCpnt->device->id == target)
2507 info->origSCpnt = NULL;
2508 if (info->reqSCpnt && info->reqSCpnt->device->id == target)
2509 info->reqSCpnt = NULL;
2511 clear_bit(target * 8 + i, info->busyluns);
2519 info->rst_dev_status = 0;
2520 info->rstSCpnt = SCpnt;
2522 if (info->scsi.phase == PHASE_IDLE)
2523 fas216_kick(info);
2525 mod_timer(&info->eh_timer, jiffies + 30 * HZ);
2526 spin_unlock_irqrestore(&info->host_lock, flags);
2531 wait_event(info->eh_wait, info->rst_dev_status);
2533 del_timer_sync(&info->eh_timer);
2534 spin_lock_irqsave(&info->host_lock, flags);
2535 info->rstSCpnt = NULL;
2537 if (info->rst_dev_status == 1)
2542 spin_unlock_irqrestore(&info->host_lock, flags);
2544 fas216_log(info, LOG_ERROR, "device reset complete: %s\n",
2560 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2564 fas216_checkmagic(info);
2565 fas216_log(info, LOG_ERROR, "resetting bus");
2567 info->stats.bus_resets += 1;
2569 spin_lock_irqsave(&info->host_lock, flags);
2574 fas216_aborttransfer(info);
2575 fas216_writeb(info, REG_CNTL3, info->scsi.cfg[2]);
2580 while (fas216_readb(info, REG_STAT) & STAT_INT)
2581 fas216_readb(info, REG_INST);
2583 info->rst_bus_status = 0;
2590 shost_for_each_device(SDpnt, info->host) {
2596 queue_remove_all_target(&info->queues.issue, SDpnt->id);
2597 queue_remove_all_target(&info->queues.disconnected, SDpnt->id);
2598 if (info->origSCpnt && info->origSCpnt->device->id == SDpnt->id)
2599 info->origSCpnt = NULL;
2600 if (info->reqSCpnt && info->reqSCpnt->device->id == SDpnt->id)
2601 info->reqSCpnt = NULL;
2602 info->SCpnt = NULL;
2605 clear_bit(SDpnt->id * 8 + i, info->busyluns);
2608 info->scsi.phase = PHASE_IDLE;
2614 fas216_cmd(info, CMD_RESETSCSI);
2616 mod_timer(&info->eh_timer, jiffies + HZ);
2617 spin_unlock_irqrestore(&info->host_lock, flags);
2622 wait_event(info->eh_wait, info->rst_bus_status);
2623 del_timer_sync(&info->eh_timer);
2625 fas216_log(info, LOG_ERROR, "bus reset complete: %s\n",
2626 info->rst_bus_status == 1 ? "success" : "failed");
2628 return info->rst_bus_status == 1 ? SUCCESS : FAILED;
2633 * @info: state structure for interface
2637 static void fas216_init_chip(FAS216_Info *info)
2639 unsigned int clock = ((info->ifcfg.clockrate - 1) / 5 + 1) & 7;
2640 fas216_writeb(info, REG_CLKF, clock);
2641 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]);
2642 fas216_writeb(info, REG_CNTL2, info->scsi.cfg[1]);
2643 fas216_writeb(info, REG_CNTL3, info->scsi.cfg[2]);
2644 fas216_writeb(info, REG_STIM, info->ifcfg.select_timeout);
2645 fas216_writeb(info, REG_SOF, 0);
2646 fas216_writeb(info, REG_STP, info->scsi.async_stp);
2647 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]);
2660 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2662 spin_lock_irq(info->host->host_lock);
2664 fas216_checkmagic(info);
2666 fas216_log(info, LOG_ERROR, "resetting host");
2671 fas216_cmd(info, CMD_RESETCHIP);
2679 spin_unlock_irq(info->host->host_lock);
2681 spin_lock_irq(info->host->host_lock);
2686 fas216_cmd(info, CMD_NOP);
2688 fas216_init_chip(info);
2690 spin_unlock_irq(info->host->host_lock);
2712 static int fas216_detect_type(FAS216_Info *info)
2719 fas216_writeb(info, REG_CMD, CMD_RESETCHIP);
2721 fas216_writeb(info, REG_CMD, CMD_NOP);
2726 fas216_writeb(info, REG_CNTL3, 0);
2727 fas216_writeb(info, REG_CNTL2, CNTL2_S2FE);
2734 if ((fas216_readb(info, REG_CNTL2) & (~0xe0)) != CNTL2_S2FE)
2740 fas216_writeb(info, REG_CNTL2, 0);
2741 fas216_writeb(info, REG_CNTL3, 0);
2742 fas216_writeb(info, REG_CNTL3, 5);
2748 if (fas216_readb(info, REG_CNTL3) != 5)
2754 fas216_writeb(info, REG_CNTL3, 0);
2756 fas216_writeb(info, REG_CNTL3, CNTL3_ADIDCHK);
2757 fas216_writeb(info, REG_CNTL3, 0);
2759 fas216_writeb(info, REG_CMD, CMD_RESETCHIP);
2761 fas216_writeb(info, REG_CMD, CMD_WITHDMA | CMD_NOP);
2763 fas216_writeb(info, REG_CNTL2, CNTL2_ENF);
2764 fas216_writeb(info, REG_CMD, CMD_RESETCHIP);
2766 fas216_writeb(info, REG_CMD, CMD_NOP);
2768 rev = fas216_readb(info, REG_ID);
2796 * @info: state to initialise
2800 static void fas216_reset_state(FAS216_Info *info)
2804 fas216_checkmagic(info);
2806 fas216_bus_reset(info);
2809 * Clear out all stale info in our state structure
2811 memset(info->busyluns, 0, sizeof(info->busyluns));
2812 info->scsi.disconnectable = 0;
2813 info->scsi.aborting = 0;
2816 info->device[i].parity_enabled = 0;
2817 info->device[i].parity_check = 1;
2823 while (queue_remove(&info->queues.disconnected) != NULL);
2828 info->SCpnt = NULL;
2829 info->reqSCpnt = NULL;
2830 info->rstSCpnt = NULL;
2831 info->origSCpnt = NULL;
2843 FAS216_Info *info = (FAS216_Info *)host->hostdata;
2845 info->magic_start = MAGIC;
2846 info->magic_end = MAGIC;
2847 info->host = host;
2848 info->scsi.cfg[0] = host->this_id | CNTL1_PERE;
2849 info->scsi.cfg[1] = CNTL2_ENF | CNTL2_S2FE;
2850 info->scsi.cfg[2] = info->ifcfg.cntl3 |
2852 info->scsi.async_stp = fas216_syncperiod(info, info->ifcfg.asyncperiod);
2854 info->rst_dev_status = -1;
2855 info->rst_bus_status = -1;
2856 init_waitqueue_head(&info->eh_wait);
2857 timer_setup(&info->eh_timer, fas216_eh_timer, 0);
2859 spin_lock_init(&info->host_lock);
2861 memset(&info->stats, 0, sizeof(info->stats));
2863 msgqueue_initialise(&info->scsi.msgs);
2865 if (!queue_initialise(&info->queues.issue))
2868 if (!queue_initialise(&info->queues.disconnected)) {
2869 queue_free(&info->queues.issue);
2886 FAS216_Info *info = (FAS216_Info *)host->hostdata;
2889 if (info->ifcfg.clockrate <= 10 || info->ifcfg.clockrate > 40) {
2891 info->ifcfg.clockrate);
2895 fas216_reset_state(info);
2896 type = fas216_detect_type(info);
2897 info->scsi.type = chip_types[type];
2904 fas216_init_chip(info);
2911 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0] | CNTL1_DISR);
2912 fas216_writeb(info, REG_CMD, CMD_RESETSCSI);
2917 spin_unlock_irq(info->host->host_lock);
2919 spin_lock_irq(info->host->host_lock);
2921 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]);
2922 fas216_readb(info, REG_INST);
2924 fas216_checkmagic(info);
2928 fas216_writeb(info, REG_CMD, CMD_RESETCHIP);
2937 FAS216_Info *info = (FAS216_Info *)host->hostdata;
2939 fas216_checkmagic(info);
2942 fas216_writeb(info, REG_CMD, CMD_RESETCHIP);
2954 FAS216_Info *info = (FAS216_Info *)host->hostdata;
2956 queue_free(&info->queues.disconnected);
2957 queue_free(&info->queues.issue);
2960 void fas216_print_host(FAS216_Info *info, struct seq_file *m)
2968 info->scsi.type, info->scsi.io_base,
2969 info->scsi.irq, info->scsi.dma);
2972 void fas216_print_stats(FAS216_Info *info, struct seq_file *m)
2986 info->stats.queues, info->stats.removes,
2987 info->stats.fins, info->stats.reads,
2988 info->stats.writes, info->stats.miscs,
2989 info->stats.disconnects, info->stats.aborts,
2990 info->stats.bus_resets, info->stats.host_resets);
2993 void fas216_print_devices(FAS216_Info *info, struct seq_file *m)
3000 shost_for_each_device(scd, info->host) {
3001 dev = &info->device[scd->id];