Lines Matching full:info
15 * FAS216_Info info;
144 static inline unsigned char fas216_readb(FAS216_Info *info, unsigned int reg)
146 unsigned int off = reg << info->scsi.io_shift;
147 return readb(info->scsi.io_base + off);
150 static inline void fas216_writeb(FAS216_Info *info, unsigned int reg, unsigned int val)
152 unsigned int off = reg << info->scsi.io_shift;
153 writeb(val, info->scsi.io_base + off);
156 static void fas216_dumpstate(FAS216_Info *info)
160 is = fas216_readb(info, REG_IS);
161 stat = fas216_readb(info, REG_STAT);
162 inst = fas216_readb(info, REG_INST);
166 fas216_readb(info, REG_CTCL),
167 fas216_readb(info, REG_CTCM),
168 fas216_readb(info, REG_CMD), stat, inst, is,
169 fas216_readb(info, REG_CFIS));
171 fas216_readb(info, REG_CNTL1),
172 fas216_readb(info, REG_CNTL2),
173 fas216_readb(info, REG_CNTL3),
174 fas216_readb(info, REG_CTCH));
185 static void fas216_dumpinfo(FAS216_Info *info)
195 info->magic_start, info->host, info->SCpnt,
196 info->origSCpnt);
198 info->scsi.io_shift, info->scsi.irq,
199 info->scsi.cfg[0], info->scsi.cfg[1], info->scsi.cfg[2],
200 info->scsi.cfg[3]);
202 info->scsi.type, info->scsi.phase);
203 print_SCp(&info->scsi.SCp, " SCp={ ", " }\n");
205 info->scsi.async_stp,
206 info->scsi.disconnectable, info->scsi.aborting);
209 info->stats.queues, info->stats.removes, info->stats.fins,
210 info->stats.reads, info->stats.writes, info->stats.miscs,
211 info->stats.disconnects, info->stats.aborts, info->stats.bus_resets,
212 info->stats.host_resets);
214 info->ifcfg.clockrate, info->ifcfg.select_timeout,
215 info->ifcfg.asyncperiod, info->ifcfg.sync_max_depth);
218 i, info->busyluns[i], i,
219 info->device[i].disconnect_ok, info->device[i].stp,
220 info->device[i].sof, info->device[i].sync_state);
223 info->dma.transfer_type, info->dma.setup,
224 info->dma.pseudo, info->dma.stop);
226 info->internal_done, info->magic_end);
229 static void __fas216_checkmagic(FAS216_Info *info, const char *func)
232 if (info->magic_start != MAGIC) {
236 if (info->magic_end != MAGIC) {
241 fas216_dumpinfo(info);
245 #define fas216_checkmagic(info) __fas216_checkmagic((info), __func__)
247 #define fas216_checkmagic(info)
262 static const char *fas216_drv_phase(FAS216_Info *info)
278 if (info->scsi.phase < ARRAY_SIZE(phases) &&
279 phases[info->scsi.phase])
280 return phases[info->scsi.phase];
284 static char fas216_target(FAS216_Info *info)
286 if (info->SCpnt)
287 return '0' + info->SCpnt->device->id;
293 fas216_do_log(FAS216_Info *info, char target, char *fmt, va_list ap)
298 printk("scsi%d.%c: %s", info->host->host_no, target, buf);
301 static void fas216_log_command(FAS216_Info *info, int level,
310 fas216_do_log(info, '0' + SCpnt->device->id, fmt, args);
317 fas216_log_target(FAS216_Info *info, int level, int target, char *fmt, ...)
330 fas216_do_log(info, target, fmt, args);
336 static void fas216_log(FAS216_Info *info, int level, char *fmt, ...)
344 fas216_do_log(info, fas216_target(info), fmt, args);
368 static void fas216_cmd(FAS216_Info *info, unsigned int command)
375 fas216_writeb(info, REG_CMD, command);
405 static void fas216_done(FAS216_Info *info, unsigned int result);
409 * @info: interface to search
415 fas216_get_last_msg(FAS216_Info *info, int pos)
421 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
433 fas216_log(info, LOG_MESSAGES,
441 * @info: state structure for interface connected to device
447 static int fas216_syncperiod(FAS216_Info *info, int ns)
449 int value = (info->ifcfg.clockrate * ns) / 1000;
451 fas216_checkmagic(info);
463 * @info: state structure for interface connected to device
471 static void fas216_set_sync(FAS216_Info *info, int target)
475 fas216_writeb(info, REG_SOF, info->device[target].sof);
476 fas216_writeb(info, REG_STP, info->device[target].stp);
478 cntl3 = info->scsi.cfg[2];
479 if (info->device[target].period >= (200 / 4))
482 fas216_writeb(info, REG_CNTL3, cntl3);
511 * @info: state structure for interface
516 static void fas216_handlesync(FAS216_Info *info, char *msg)
518 struct fas216_device *dev = &info->device[info->SCpnt->device->id];
557 fas216_cmd(info, CMD_SETATN);
558 if (msg[4] > info->ifcfg.sync_max_depth)
559 msg[4] = info->ifcfg.sync_max_depth;
560 if (msg[3] < 1000 / info->ifcfg.clockrate)
561 msg[3] = 1000 / info->ifcfg.clockrate;
563 msgqueue_flush(&info->scsi.msgs);
564 msgqueue_addmsg(&info->scsi.msgs, 5,
567 info->scsi.phase = PHASE_MSGOUT_EXPECT;
584 if (msg[4] <= info->ifcfg.sync_max_depth &&
585 msg[3] >= 1000 / info->ifcfg.clockrate) {
600 dev->stp = fas216_syncperiod(info, msg[3] * 4);
601 fas216_set_sync(info, info->SCpnt->device->id);
605 fas216_cmd(info, CMD_SETATN);
606 msgqueue_flush(&info->scsi.msgs);
607 msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT);
608 info->scsi.phase = PHASE_MSGOUT_EXPECT;
612 dev->period = info->ifcfg.asyncperiod / 4;
614 dev->stp = info->scsi.async_stp;
615 fas216_set_sync(info, info->SCpnt->device->id);
625 * @info: interface's local pointer to update
630 static void fas216_updateptrs(FAS216_Info *info, int bytes_transferred)
632 struct scsi_pointer *SCp = &info->scsi.SCp;
634 fas216_checkmagic(info);
650 info->host->host_no, '0' + info->SCpnt->device->id);
664 * @info: interface to transfer data to/from
670 static void fas216_pio(FAS216_Info *info, fasdmadir_t direction)
672 struct scsi_pointer *SCp = &info->scsi.SCp;
674 fas216_checkmagic(info);
677 fas216_writeb(info, REG_FF, get_next_SCp_byte(SCp));
679 put_next_SCp_byte(SCp, fas216_readb(info, REG_FF));
685 static void fas216_set_stc(FAS216_Info *info, unsigned int length)
687 fas216_writeb(info, REG_STCL, length);
688 fas216_writeb(info, REG_STCM, length >> 8);
689 fas216_writeb(info, REG_STCH, length >> 16);
692 static unsigned int fas216_get_ctc(FAS216_Info *info)
694 return fas216_readb(info, REG_CTCL) +
695 (fas216_readb(info, REG_CTCM) << 8) +
696 (fas216_readb(info, REG_CTCH) << 16);
701 * @info: interface to clean up
706 static void fas216_cleanuptransfer(FAS216_Info *info)
709 fasdmatype_t dmatype = info->dma.transfer_type;
711 info->dma.transfer_type = fasdma_none;
720 total = info->scsi.SCp.phase;
722 total = info->scsi.SCp.this_residual;
724 residual = fas216_get_ctc(info);
726 fifo = fas216_readb(info, REG_CFIS) & CFIS_CF;
728 fas216_log(info, LOG_BUFFER, "cleaning up from previous "
738 if (info->scsi.phase == PHASE_DATAOUT)
741 fas216_updateptrs(info, total - residual);
746 * @info: interface from which device disconnected from
750 static void fas216_transfer(FAS216_Info *info)
755 fas216_log(info, LOG_BUFFER,
757 info->scsi.SCp.ptr, info->scsi.SCp.this_residual,
758 info->scsi.SCp.phase);
760 if (!info->scsi.SCp.ptr) {
761 fas216_log(info, LOG_ERROR, "null buffer passed to "
763 print_SCp(&info->scsi.SCp, "SCp: ", "\n");
764 print_SCp(arm_scsi_pointer(info->SCpnt), "Cmnd SCp: ", "\n");
773 if (info->device[info->SCpnt->device->id].sof)
778 if (info->scsi.phase == PHASE_DATAOUT)
783 if (info->dma.setup)
784 dmatype = info->dma.setup(info->host, &info->scsi.SCp,
786 info->dma.transfer_type = dmatype;
789 fas216_set_stc(info, info->scsi.SCp.phase);
791 fas216_set_stc(info, info->scsi.SCp.this_residual);
795 fas216_log(info, LOG_BUFFER, "PIO transfer");
796 fas216_writeb(info, REG_SOF, 0);
797 fas216_writeb(info, REG_STP, info->scsi.async_stp);
798 fas216_cmd(info, CMD_TRANSFERINFO);
799 fas216_pio(info, direction);
803 fas216_log(info, LOG_BUFFER, "pseudo transfer");
804 fas216_cmd(info, CMD_TRANSFERINFO | CMD_WITHDMA);
805 info->dma.pseudo(info->host, &info->scsi.SCp,
806 direction, info->SCpnt->transfersize);
810 fas216_log(info, LOG_BUFFER, "block dma transfer");
811 fas216_cmd(info, CMD_TRANSFERINFO | CMD_WITHDMA);
815 fas216_log(info, LOG_BUFFER, "total dma transfer");
816 fas216_cmd(info, CMD_TRANSFERINFO | CMD_WITHDMA);
820 fas216_log(info, LOG_BUFFER | LOG_ERROR,
828 * @info: interface from which device disconnected from
832 static void fas216_stoptransfer(FAS216_Info *info)
834 fas216_checkmagic(info);
836 if (info->dma.transfer_type == fasdma_real_all ||
837 info->dma.transfer_type == fasdma_real_block)
838 info->dma.stop(info->host, &info->scsi.SCp);
840 fas216_cleanuptransfer(info);
842 if (info->scsi.phase == PHASE_DATAIN) {
850 fifo = fas216_readb(info, REG_CFIS) & CFIS_CF;
851 while (fifo && info->scsi.SCp.ptr) {
852 *info->scsi.SCp.ptr = fas216_readb(info, REG_FF);
853 fas216_updateptrs(info, 1);
861 fas216_cmd(info, CMD_FLUSHFIFO);
865 static void fas216_aborttransfer(FAS216_Info *info)
867 fas216_checkmagic(info);
869 if (info->dma.transfer_type == fasdma_real_all ||
870 info->dma.transfer_type == fasdma_real_block)
871 info->dma.stop(info->host, &info->scsi.SCp);
873 info->dma.transfer_type = fasdma_none;
874 fas216_cmd(info, CMD_FLUSHFIFO);
877 static void fas216_kick(FAS216_Info *info);
881 * @info: interface from which device disconnected from
885 static void fas216_disconnect_intr(FAS216_Info *info)
889 fas216_checkmagic(info);
891 fas216_log(info, LOG_CONNECT, "disconnect phase=%02x",
892 info->scsi.phase);
894 msgqueue_flush(&info->scsi.msgs);
896 switch (info->scsi.phase) {
899 fas216_done(info, DID_NO_CONNECT);
903 info->scsi.disconnectable = 1;
904 info->scsi.phase = PHASE_IDLE;
905 info->stats.disconnects += 1;
906 spin_lock_irqsave(&info->host_lock, flags);
907 if (info->scsi.phase == PHASE_IDLE)
908 fas216_kick(info);
909 spin_unlock_irqrestore(&info->host_lock, flags);
913 fas216_done(info, DID_OK);
917 if (fas216_get_last_msg(info, info->scsi.msgin_fifo) == ABORT) {
918 info->scsi.aborting = 0;
919 fas216_done(info, DID_ABORT);
926 info->host->host_no, fas216_target(info), fas216_drv_phase(info));
928 fas216_stoptransfer(info);
929 fas216_done(info, DID_ERROR);
936 * @info: interface which was reselected
941 fas216_reselected_intr(FAS216_Info *info)
947 fas216_checkmagic(info);
949 WARN_ON(info->scsi.phase == PHASE_SELECTION ||
950 info->scsi.phase == PHASE_SELSTEPS);
952 cfis = fas216_readb(info, REG_CFIS);
954 fas216_log(info, LOG_CONNECT, "reconnect phase=%02x cfis=%02x",
955 info->scsi.phase, cfis);
961 info->host->host_no);
966 msg[i] = fas216_readb(info, REG_FF);
968 if (!(msg[0] & (1 << info->host->this_id)) ||
972 target = msg[0] & ~(1 << info->host->this_id);
985 fas216_writeb(info, REG_SDID, target);
986 fas216_set_sync(info, target);
987 msgqueue_flush(&info->scsi.msgs);
989 fas216_log(info, LOG_CONNECT, "Reconnected: target %1x lun %1x tag %02x",
992 if (info->scsi.disconnectable && info->SCpnt) {
993 info->scsi.disconnectable = 0;
994 if (info->SCpnt->device->id == target &&
995 info->SCpnt->device->lun == lun &&
996 scsi_cmd_to_rq(info->SCpnt)->tag == tag) {
997 fas216_log(info, LOG_CONNECT, "reconnected previously executing command");
999 queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt);
1000 fas216_log(info, LOG_CONNECT, "had to move command to disconnected queue");
1001 info->SCpnt = NULL;
1004 if (!info->SCpnt) {
1005 info->SCpnt = queue_remove_tgtluntag(&info->queues.disconnected,
1007 fas216_log(info, LOG_CONNECT, "had to get command");
1010 if (info->SCpnt) {
1014 info->scsi.SCp = *arm_scsi_pointer(info->SCpnt);
1016 fas216_log(info, LOG_CONNECT, "data pointers: [%p, %X]",
1017 info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
1018 info->scsi.phase = PHASE_MSGIN;
1026 fas216_cmd(info, CMD_SETATN);
1030 msgqueue_addmsg(&info->scsi.msgs, 2, ABORT_TAG, tag);
1033 msgqueue_addmsg(&info->scsi.msgs, 1, ABORT);
1034 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1035 info->scsi.aborting = 1;
1038 fas216_cmd(info, CMD_MSGACCEPTED);
1043 info->host->host_no);
1048 fas216_cmd(info, CMD_SETATN);
1049 msgqueue_flush(&info->scsi.msgs);
1050 msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
1051 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1052 fas216_cmd(info, CMD_MSGACCEPTED);
1055 static void fas216_parse_message(FAS216_Info *info, unsigned char *message, int msglen)
1067 info->host->host_no, fas216_target(info));
1082 scsi_pointer = arm_scsi_pointer(info->SCpnt);
1083 *scsi_pointer = info->scsi.SCp;
1085 fas216_log(info, LOG_CONNECT | LOG_MESSAGES | LOG_BUFFER,
1087 info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
1097 info->scsi.SCp = *arm_scsi_pointer(info->SCpnt);
1098 fas216_log(info, LOG_CONNECT | LOG_MESSAGES | LOG_BUFFER,
1100 info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
1107 info->scsi.phase = PHASE_MSGIN_DISCONNECT;
1114 switch (fas216_get_last_msg(info, info->scsi.msgin_fifo)) {
1116 fas216_handlesync(info, message);
1120 fas216_log(info, 0, "reject, last message 0x%04x",
1121 fas216_get_last_msg(info, info->scsi.msgin_fifo));
1134 fas216_handlesync(info, message);
1148 fas216_log(info, 0, "unrecognised message, rejecting");
1149 printk("scsi%d.%c: message was", info->host->host_no, fas216_target(info));
1159 fas216_cmd(info, CMD_NOP);
1160 fas216_dumpstate(info);
1161 fas216_cmd(info, CMD_SETATN);
1162 msgqueue_flush(&info->scsi.msgs);
1163 msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT);
1164 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1165 fas216_dumpstate(info);
1168 static int fas216_wait_cmd(FAS216_Info *info, int cmd)
1173 fas216_cmd(info, cmd);
1176 stat = fas216_readb(info, REG_STAT);
1185 static int fas216_get_msg_byte(FAS216_Info *info)
1187 unsigned int stat = fas216_wait_cmd(info, CMD_MSGACCEPTED);
1195 fas216_readb(info, REG_INST);
1197 stat = fas216_wait_cmd(info, CMD_TRANSFERINFO);
1208 fas216_readb(info, REG_INST);
1210 return fas216_readb(info, REG_FF);
1213 fas216_log(info, LOG_ERROR, "timed out waiting for message byte");
1217 fas216_log(info, LOG_ERROR, "unexpected phase change: status = %02x", stat);
1221 fas216_log(info, LOG_ERROR, "parity error during message in phase");
1227 * @info: interface which caused function done interrupt
1231 static void fas216_message(FAS216_Info *info)
1233 unsigned char *message = info->scsi.message;
1237 fas216_checkmagic(info);
1239 message[0] = fas216_readb(info, REG_FF);
1242 msgbyte = fas216_get_msg_byte(info);
1248 msgbyte = fas216_get_msg_byte(info);
1266 info->host->host_no, fas216_target(info));
1273 fas216_parse_message(info, message, msglen);
1274 fas216_cmd(info, CMD_MSGACCEPTED);
1278 fas216_cmd(info, CMD_SETATN);
1279 msgqueue_flush(&info->scsi.msgs);
1280 msgqueue_addmsg(&info->scsi.msgs, 1, MSG_PARITY_ERROR);
1281 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1282 fas216_cmd(info, CMD_MSGACCEPTED);
1288 * @info: interface which caused bus service
1292 static void fas216_send_command(FAS216_Info *info)
1296 fas216_checkmagic(info);
1298 fas216_cmd(info, CMD_NOP|CMD_WITHDMA);
1299 fas216_cmd(info, CMD_FLUSHFIFO);
1302 for (i = info->scsi.SCp.sent_command; i < info->SCpnt->cmd_len; i++)
1303 fas216_writeb(info, REG_FF, info->SCpnt->cmnd[i]);
1305 fas216_cmd(info, CMD_TRANSFERINFO);
1307 info->scsi.phase = PHASE_COMMAND;
1312 * @info: interface which caused bus service
1317 static void fas216_send_messageout(FAS216_Info *info, int start)
1319 unsigned int tot_msglen = msgqueue_msglength(&info->scsi.msgs);
1321 fas216_checkmagic(info);
1323 fas216_cmd(info, CMD_FLUSHFIFO);
1329 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
1333 fas216_writeb(info, REG_FF, msg->msg[i]);
1335 msg->fifo = tot_msglen - (fas216_readb(info, REG_CFIS) & CFIS_CF);
1339 fas216_writeb(info, REG_FF, NOP);
1341 fas216_cmd(info, CMD_TRANSFERINFO);
1343 info->scsi.phase = PHASE_MSGOUT;
1348 * @info: interface which caused bus service interrupt
1354 static void fas216_busservice_intr(FAS216_Info *info, unsigned int stat, unsigned int is)
1356 fas216_checkmagic(info);
1358 fas216_log(info, LOG_BUSSERVICE,
1360 stat, is, info->scsi.phase);
1362 switch (info->scsi.phase) {
1389 fas216_cmd(info, CMD_NOP);
1395 switch (STATE(stat & STAT_BUSMASK, info->scsi.phase)) {
1400 info->scsi.phase = PHASE_DATAIN;
1401 fas216_transfer(info);
1406 fas216_cleanuptransfer(info);
1407 fas216_transfer(info);
1414 fas216_cmd(info, CMD_FLUSHFIFO);
1415 info->scsi.phase = PHASE_DATAOUT;
1416 fas216_transfer(info);
1421 fas216_stoptransfer(info);
1428 fas216_cmd(info, CMD_INITCMDCOMPLETE);
1429 info->scsi.phase = PHASE_STATUS;
1434 fas216_stoptransfer(info);
1440 info->scsi.msgin_fifo = fas216_readb(info, REG_CFIS) & CFIS_CF;
1441 fas216_cmd(info, CMD_FLUSHFIFO);
1442 fas216_cmd(info, CMD_TRANSFERINFO);
1443 info->scsi.phase = PHASE_MSGIN;
1447 info->scsi.msgin_fifo = fas216_readb(info, REG_CFIS) & CFIS_CF;
1448 fas216_cmd(info, CMD_TRANSFERINFO);
1453 fas216_send_command(info);
1454 info->scsi.phase = PHASE_COMMAND;
1462 fas216_send_messageout(info, 1);
1476 if (info->device[info->SCpnt->device->id].parity_check) {
1481 info->device[info->SCpnt->device->id].parity_check = 0;
1482 info->device[info->SCpnt->device->id].parity_enabled = 1;
1483 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]);
1486 if (msgqueue_msglength(&info->scsi.msgs) > 1)
1487 fas216_cmd(info, CMD_SETATN);
1494 fas216_send_messageout(info, 0);
1510 info->host->host_no, fas216_target(info));
1511 fas216_cmd(info, CMD_SETATN);
1512 fas216_set_stc(info, 15);
1513 fas216_cmd(info, CMD_PADBYTES | CMD_WITHDMA);
1514 msgqueue_flush(&info->scsi.msgs);
1515 msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
1516 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1520 if (info->scsi.phase == PHASE_MSGIN_DISCONNECT) {
1522 info->host->host_no, fas216_target(info),
1524 msgqueue_flush(&info->scsi.msgs);
1525 fas216_cmd(info, CMD_SETATN);
1526 msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
1527 info->scsi.phase = PHASE_MSGOUT_EXPECT;
1528 info->scsi.aborting = 1;
1529 fas216_cmd(info, CMD_TRANSFERINFO);
1533 info->host->host_no, fas216_target(info),
1535 fas216_drv_phase(info));
1540 fas216_log(info, 0, "bus service at step %d?", is & IS_BITS);
1541 fas216_dumpstate(info);
1544 fas216_done(info, DID_ERROR);
1549 * @info: interface which caused function done interrupt
1555 static void fas216_funcdone_intr(FAS216_Info *info, unsigned int stat, unsigned int is)
1557 unsigned int fifo_len = fas216_readb(info, REG_CFIS) & CFIS_CF;
1559 fas216_checkmagic(info);
1561 fas216_log(info, LOG_FUNCTIONDONE,
1563 stat, is, info->scsi.phase);
1565 switch (info->scsi.phase) {
1568 fas216_log(info, 0, "odd number of bytes in FIFO: %d", fifo_len);
1573 info->scsi.SCp.Status = fas216_readb(info, REG_FF);
1574 info->scsi.SCp.Message = fas216_readb(info, REG_FF);
1575 info->scsi.phase = PHASE_DONE;
1576 fas216_cmd(info, CMD_MSGACCEPTED);
1586 info->scsi.msgin_fifo = fifo_len;
1587 fas216_message(info);
1593 fas216_log(info, 0, "internal phase %s for function done?"
1595 fas216_target(info), fas216_drv_phase(info));
1599 static void fas216_bus_reset(FAS216_Info *info)
1604 msgqueue_flush(&info->scsi.msgs);
1609 if (info->ifcfg.capabilities & (FASCAP_DMA|FASCAP_PSEUDODMA))
1613 info->scsi.phase = PHASE_IDLE;
1614 info->SCpnt = NULL; /* bug! */
1615 memset(&info->scsi.SCp, 0, sizeof(info->scsi.SCp));
1618 info->device[i].disconnect_ok = info->ifcfg.disconnect_ok;
1619 info->device[i].sync_state = sync_state;
1620 info->device[i].period = info->ifcfg.asyncperiod / 4;
1621 info->device[i].stp = info->scsi.async_stp;
1622 info->device[i].sof = 0;
1623 info->device[i].wide_xfer = 0;
1626 info->rst_bus_status = 1;
1627 wake_up(&info->eh_wait);
1632 * @info: interface to service
1636 irqreturn_t fas216_intr(FAS216_Info *info)
1641 fas216_checkmagic(info);
1643 stat = fas216_readb(info, REG_STAT);
1644 is = fas216_readb(info, REG_IS);
1645 inst = fas216_readb(info, REG_INST);
1647 add_debug_list(stat, is, inst, info->scsi.phase);
1651 fas216_log(info, 0, "bus reset detected");
1652 fas216_bus_reset(info);
1653 scsi_report_bus_reset(info->host, 0);
1655 fas216_log(info, LOG_ERROR, "illegal command given\n");
1656 fas216_dumpstate(info);
1659 fas216_disconnect_intr(info);
1661 fas216_reselected_intr(info);
1663 fas216_busservice_intr(info, stat, is);
1665 fas216_funcdone_intr(info, stat, is);
1667 fas216_log(info, 0, "unknown interrupt received:"
1669 fas216_drv_phase(info), inst, is, stat);
1675 static void __fas216_start_command(FAS216_Info *info, struct scsi_cmnd *SCpnt)
1680 fas216_set_stc(info, 0);
1681 fas216_cmd(info, CMD_NOP | CMD_WITHDMA);
1684 fas216_cmd(info, CMD_FLUSHFIFO);
1687 fas216_writeb(info, REG_SDID, BUSID(SCpnt->device->id));
1688 fas216_writeb(info, REG_STIM, info->ifcfg.select_timeout);
1691 fas216_set_sync(info, SCpnt->device->id);
1693 tot_msglen = msgqueue_msglength(&info->scsi.msgs);
1701 info->host->host_no, '0' + SCpnt->device->id);
1702 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
1719 info->scsi.phase = PHASE_SELSTEPS;
1722 while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
1724 fas216_writeb(info, REG_FF, msg->msg[i]);
1725 msg->fifo = tot_msglen - (fas216_readb(info, REG_CFIS) & CFIS_CF);
1730 fas216_writeb(info, REG_FF, SCpnt->cmnd[i]);
1733 fas216_cmd(info, CMD_SELECTATN);
1735 fas216_cmd(info, CMD_SELECTATN3);
1742 struct message *msg = msgqueue_getmsg(&info->scsi.msgs, 0);
1744 fas216_writeb(info, REG_FF, msg->msg[0]);
1747 fas216_cmd(info, CMD_SELECTATNSTOP);
1756 static int parity_test(FAS216_Info *info, int target)
1760 info->device[target].parity_check = 0;
1764 return info->device[target].parity_check;
1767 static void fas216_start_command(FAS216_Info *info, struct scsi_cmnd *SCpnt)
1774 info->scsi.phase = PHASE_SELECTION;
1775 info->scsi.SCp = *arm_scsi_pointer(SCpnt);
1776 info->SCpnt = SCpnt;
1777 info->dma.transfer_type = fasdma_none;
1779 if (parity_test(info, SCpnt->device->id))
1780 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0] | CNTL1_PTE);
1782 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]);
1788 info->device[SCpnt->device->id].disconnect_ok;
1793 msgqueue_flush(&info->scsi.msgs);
1794 msgqueue_addmsg(&info->scsi.msgs, 1, IDENTIFY(disconnect_ok, SCpnt->device->lun));
1800 msgqueue_addmsg(&info->scsi.msgs, 2, SIMPLE_QUEUE_TAG,
1805 if ((info->device[SCpnt->device->id].sync_state == neg_wait ||
1806 info->device[SCpnt->device->id].sync_state == neg_complete) &&
1809 info->device[SCpnt->device->id].sync_state = neg_inprogress;
1810 msgqueue_addmsg(&info->scsi.msgs, 5,
1812 1000 / info->ifcfg.clockrate,
1813 info->ifcfg.sync_max_depth);
1819 __fas216_start_command(info, SCpnt);
1822 static void fas216_allocate_tag(FAS216_Info *info, struct scsi_cmnd *SCpnt)
1825 (u8)(SCpnt->device->lun & 0x7), info->busyluns);
1827 info->stats.removes += 1;
1832 info->stats.writes += 1;
1837 info->stats.reads += 1;
1840 info->stats.miscs += 1;
1845 static void fas216_do_bus_device_reset(FAS216_Info *info,
1853 info->scsi.phase = PHASE_SELECTION;
1854 info->scsi.SCp = *arm_scsi_pointer(SCpnt);
1855 info->SCpnt = SCpnt;
1856 info->dma.transfer_type = fasdma_none;
1858 fas216_log(info, LOG_ERROR, "sending bus device reset");
1860 msgqueue_flush(&info->scsi.msgs);
1861 msgqueue_addmsg(&info->scsi.msgs, 1, BUS_DEVICE_RESET);
1864 fas216_set_stc(info, 0);
1865 fas216_cmd(info, CMD_NOP | CMD_WITHDMA);
1868 fas216_cmd(info, CMD_FLUSHFIFO);
1871 fas216_writeb(info, REG_SDID, BUSID(SCpnt->device->id));
1872 fas216_writeb(info, REG_STIM, info->ifcfg.select_timeout);
1875 fas216_set_sync(info, SCpnt->device->id);
1877 msg = msgqueue_getmsg(&info->scsi.msgs, 0);
1879 fas216_writeb(info, REG_FF, BUS_DEVICE_RESET);
1882 fas216_cmd(info, CMD_SELECTATNSTOP);
1887 * @info: our host interface to kick
1892 static void fas216_kick(FAS216_Info *info)
1900 fas216_checkmagic(info);
1906 if (info->rstSCpnt) {
1907 SCpnt = info->rstSCpnt;
1913 if (info->reqSCpnt) {
1914 SCpnt = info->reqSCpnt;
1915 info->reqSCpnt = NULL;
1919 if (info->origSCpnt) {
1920 SCpnt = info->origSCpnt;
1921 info->origSCpnt = NULL;
1927 SCpnt = queue_remove_exclude(&info->queues.issue,
1928 info->busyluns);
1938 fas216_cmd(info, CMD_ENABLESEL);
1945 fas216_cmd(info, CMD_DISABLESEL);
1947 if (info->scsi.disconnectable && info->SCpnt) {
1948 fas216_log(info, LOG_CONNECT,
1950 info->SCpnt->device->id);
1951 queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt);
1952 info->scsi.disconnectable = 0;
1953 info->SCpnt = NULL;
1956 fas216_log_command(info, LOG_CONNECT | LOG_MESSAGES, SCpnt,
1961 fas216_allocate_tag(info, SCpnt);
1964 fas216_start_command(info, SCpnt);
1967 fas216_do_bus_device_reset(info, SCpnt);
1971 fas216_log(info, LOG_CONNECT, "select: data pointers [%p, %X]",
1972 info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
1983 static void fas216_devicereset_done(FAS216_Info *info, struct scsi_cmnd *SCpnt,
1986 fas216_log(info, LOG_ERROR, "fas216 device reset complete");
1988 info->rstSCpnt = NULL;
1989 info->rst_dev_status = 1;
1990 wake_up(&info->eh_wait);
1995 * @info: interface that completed
2001 static void fas216_rq_sns_done(FAS216_Info *info, struct scsi_cmnd *SCpnt,
2006 fas216_log_target(info, LOG_CONNECT, SCpnt->device->id,
2017 //printk("scsi%d.%c: sense buffer: ", info->host->host_no, '0' + SCpnt->device->id);
2025 scsi_eh_restore_cmnd(SCpnt, &info->ses);
2031 * @info: interface that completed
2038 fas216_std_done(FAS216_Info *info, struct scsi_cmnd *SCpnt, unsigned int result)
2042 info->stats.fins += 1;
2046 scsi_msg_to_host_byte(SCpnt, info->scsi.SCp.Message);
2047 set_status_byte(SCpnt, info->scsi.SCp.Status);
2049 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,
2125 if (info->reqSCpnt)
2127 info->host->host_no, '0' + SCpnt->device->id);
2128 info->reqSCpnt = SCpnt;
2133 * @info: interface that completed
2138 static void fas216_done(FAS216_Info *info, unsigned int result)
2144 fas216_checkmagic(info);
2146 if (!info->SCpnt)
2149 SCpnt = info->SCpnt;
2150 info->SCpnt = NULL;
2151 info->scsi.phase = PHASE_IDLE;
2153 if (info->scsi.aborting) {
2154 fas216_log(info, 0, "uncaught abort - returning DID_ABORT");
2156 info->scsi.aborting = 0;
2163 if (info->scsi.SCp.ptr && info->scsi.SCp.this_residual == 0) {
2166 info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
2167 info->scsi.SCp.ptr = NULL;
2176 info->device[SCpnt->device->id].parity_check = 0;
2178 (u8)(SCpnt->device->lun & 0x7), info->busyluns);
2181 fn(info, SCpnt, result);
2183 if (info->scsi.irq) {
2184 spin_lock_irqsave(&info->host_lock, flags);
2185 if (info->scsi.phase == PHASE_IDLE)
2186 fas216_kick(info);
2187 spin_unlock_irqrestore(&info->host_lock, flags);
2193 info->host->host_no);
2208 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2211 fas216_checkmagic(info);
2213 fas216_log_command(info, LOG_CONNECT, SCpnt,
2222 info->stats.queues += 1;
2224 spin_lock(&info->host_lock);
2230 result = !queue_add_cmd_ordered(&info->queues.issue, SCpnt);
2236 if (result == 0 && info->scsi.phase == PHASE_IDLE)
2237 fas216_kick(info);
2238 spin_unlock(&info->host_lock);
2240 fas216_log_target(info, LOG_CONNECT, -1, "queue %s",
2261 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2263 fas216_checkmagic(info);
2265 info->internal_done = 1;
2278 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2280 fas216_checkmagic(info);
2286 BUG_ON(info->scsi.irq);
2288 info->internal_done = 0;
2297 spin_unlock_irq(info->host->host_lock);
2299 while (!info->internal_done) {
2308 if (fas216_readb(info, REG_STAT) & STAT_INT) {
2309 spin_lock_irq(info->host->host_lock);
2310 fas216_intr(info);
2311 spin_unlock_irq(info->host->host_lock);
2315 spin_lock_irq(info->host->host_lock);
2330 FAS216_Info *info = timer_container_of(info, t, eh_timer);
2332 fas216_log(info, LOG_ERROR, "error handling timed out\n");
2334 timer_delete(&info->eh_timer);
2336 if (info->rst_bus_status == 0)
2337 info->rst_bus_status = -1;
2338 if (info->rst_dev_status == 0)
2339 info->rst_dev_status = -1;
2341 wake_up(&info->eh_wait);
2357 static enum res_find fas216_find_command(FAS216_Info *info,
2362 if (queue_remove_cmd(&info->queues.issue, SCpnt)) {
2372 } else if (queue_remove_cmd(&info->queues.disconnected, SCpnt)) {
2381 } else if (info->SCpnt == SCpnt) {
2384 switch (info->scsi.phase) {
2390 if (info->scsi.disconnectable) {
2391 info->scsi.disconnectable = 0;
2392 info->SCpnt = NULL;
2400 } else if (info->origSCpnt == SCpnt) {
2407 info->origSCpnt = NULL;
2409 (u8)(SCpnt->device->lun & 0x7), info->busyluns);
2428 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2431 fas216_checkmagic(info);
2433 info->stats.aborts += 1;
2438 fas216_dumpstate(info);
2440 switch (fas216_find_command(info, SCpnt)) {
2481 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2485 fas216_log(info, LOG_ERROR, "device reset for target %d", target);
2487 spin_lock_irqsave(&info->host_lock, flags);
2496 if (info->SCpnt && !info->scsi.disconnectable &&
2497 info->SCpnt->device->id == SCpnt->device->id)
2506 queue_remove_all_target(&info->queues.issue, target);
2507 queue_remove_all_target(&info->queues.disconnected, target);
2508 if (info->origSCpnt && info->origSCpnt->device->id == target)
2509 info->origSCpnt = NULL;
2510 if (info->reqSCpnt && info->reqSCpnt->device->id == target)
2511 info->reqSCpnt = NULL;
2513 clear_bit(target * 8 + i, info->busyluns);
2521 info->rst_dev_status = 0;
2522 info->rstSCpnt = SCpnt;
2524 if (info->scsi.phase == PHASE_IDLE)
2525 fas216_kick(info);
2527 mod_timer(&info->eh_timer, jiffies + 30 * HZ);
2528 spin_unlock_irqrestore(&info->host_lock, flags);
2533 wait_event(info->eh_wait, info->rst_dev_status);
2535 timer_delete_sync(&info->eh_timer);
2536 spin_lock_irqsave(&info->host_lock, flags);
2537 info->rstSCpnt = NULL;
2539 if (info->rst_dev_status == 1)
2544 spin_unlock_irqrestore(&info->host_lock, flags);
2546 fas216_log(info, LOG_ERROR, "device reset complete: %s\n",
2562 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2566 fas216_checkmagic(info);
2567 fas216_log(info, LOG_ERROR, "resetting bus");
2569 info->stats.bus_resets += 1;
2571 spin_lock_irqsave(&info->host_lock, flags);
2576 fas216_aborttransfer(info);
2577 fas216_writeb(info, REG_CNTL3, info->scsi.cfg[2]);
2582 while (fas216_readb(info, REG_STAT) & STAT_INT)
2583 fas216_readb(info, REG_INST);
2585 info->rst_bus_status = 0;
2592 shost_for_each_device(SDpnt, info->host) {
2598 queue_remove_all_target(&info->queues.issue, SDpnt->id);
2599 queue_remove_all_target(&info->queues.disconnected, SDpnt->id);
2600 if (info->origSCpnt && info->origSCpnt->device->id == SDpnt->id)
2601 info->origSCpnt = NULL;
2602 if (info->reqSCpnt && info->reqSCpnt->device->id == SDpnt->id)
2603 info->reqSCpnt = NULL;
2604 info->SCpnt = NULL;
2607 clear_bit(SDpnt->id * 8 + i, info->busyluns);
2610 info->scsi.phase = PHASE_IDLE;
2616 fas216_cmd(info, CMD_RESETSCSI);
2618 mod_timer(&info->eh_timer, jiffies + HZ);
2619 spin_unlock_irqrestore(&info->host_lock, flags);
2624 wait_event(info->eh_wait, info->rst_bus_status);
2625 timer_delete_sync(&info->eh_timer);
2627 fas216_log(info, LOG_ERROR, "bus reset complete: %s\n",
2628 info->rst_bus_status == 1 ? "success" : "failed");
2630 return info->rst_bus_status == 1 ? SUCCESS : FAILED;
2635 * @info: state structure for interface
2639 static void fas216_init_chip(FAS216_Info *info)
2641 unsigned int clock = ((info->ifcfg.clockrate - 1) / 5 + 1) & 7;
2642 fas216_writeb(info, REG_CLKF, clock);
2643 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]);
2644 fas216_writeb(info, REG_CNTL2, info->scsi.cfg[1]);
2645 fas216_writeb(info, REG_CNTL3, info->scsi.cfg[2]);
2646 fas216_writeb(info, REG_STIM, info->ifcfg.select_timeout);
2647 fas216_writeb(info, REG_SOF, 0);
2648 fas216_writeb(info, REG_STP, info->scsi.async_stp);
2649 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]);
2662 FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
2664 spin_lock_irq(info->host->host_lock);
2666 fas216_checkmagic(info);
2668 fas216_log(info, LOG_ERROR, "resetting host");
2673 fas216_cmd(info, CMD_RESETCHIP);
2681 spin_unlock_irq(info->host->host_lock);
2683 spin_lock_irq(info->host->host_lock);
2688 fas216_cmd(info, CMD_NOP);
2690 fas216_init_chip(info);
2692 spin_unlock_irq(info->host->host_lock);
2714 static int fas216_detect_type(FAS216_Info *info)
2721 fas216_writeb(info, REG_CMD, CMD_RESETCHIP);
2723 fas216_writeb(info, REG_CMD, CMD_NOP);
2728 fas216_writeb(info, REG_CNTL3, 0);
2729 fas216_writeb(info, REG_CNTL2, CNTL2_S2FE);
2736 if ((fas216_readb(info, REG_CNTL2) & (~0xe0)) != CNTL2_S2FE)
2742 fas216_writeb(info, REG_CNTL2, 0);
2743 fas216_writeb(info, REG_CNTL3, 0);
2744 fas216_writeb(info, REG_CNTL3, 5);
2750 if (fas216_readb(info, REG_CNTL3) != 5)
2756 fas216_writeb(info, REG_CNTL3, 0);
2758 fas216_writeb(info, REG_CNTL3, CNTL3_ADIDCHK);
2759 fas216_writeb(info, REG_CNTL3, 0);
2761 fas216_writeb(info, REG_CMD, CMD_RESETCHIP);
2763 fas216_writeb(info, REG_CMD, CMD_WITHDMA | CMD_NOP);
2765 fas216_writeb(info, REG_CNTL2, CNTL2_ENF);
2766 fas216_writeb(info, REG_CMD, CMD_RESETCHIP);
2768 fas216_writeb(info, REG_CMD, CMD_NOP);
2770 rev = fas216_readb(info, REG_ID);
2798 * @info: state to initialise
2802 static void fas216_reset_state(FAS216_Info *info)
2806 fas216_checkmagic(info);
2808 fas216_bus_reset(info);
2811 * Clear out all stale info in our state structure
2813 memset(info->busyluns, 0, sizeof(info->busyluns));
2814 info->scsi.disconnectable = 0;
2815 info->scsi.aborting = 0;
2818 info->device[i].parity_enabled = 0;
2819 info->device[i].parity_check = 1;
2825 while (queue_remove(&info->queues.disconnected) != NULL);
2830 info->SCpnt = NULL;
2831 info->reqSCpnt = NULL;
2832 info->rstSCpnt = NULL;
2833 info->origSCpnt = NULL;
2845 FAS216_Info *info = (FAS216_Info *)host->hostdata;
2847 info->magic_start = MAGIC;
2848 info->magic_end = MAGIC;
2849 info->host = host;
2850 info->scsi.cfg[0] = host->this_id | CNTL1_PERE;
2851 info->scsi.cfg[1] = CNTL2_ENF | CNTL2_S2FE;
2852 info->scsi.cfg[2] = info->ifcfg.cntl3 |
2854 info->scsi.async_stp = fas216_syncperiod(info, info->ifcfg.asyncperiod);
2856 info->rst_dev_status = -1;
2857 info->rst_bus_status = -1;
2858 init_waitqueue_head(&info->eh_wait);
2859 timer_setup(&info->eh_timer, fas216_eh_timer, 0);
2861 spin_lock_init(&info->host_lock);
2863 memset(&info->stats, 0, sizeof(info->stats));
2865 msgqueue_initialise(&info->scsi.msgs);
2867 if (!queue_initialise(&info->queues.issue))
2870 if (!queue_initialise(&info->queues.disconnected)) {
2871 queue_free(&info->queues.issue);
2888 FAS216_Info *info = (FAS216_Info *)host->hostdata;
2891 if (info->ifcfg.clockrate <= 10 || info->ifcfg.clockrate > 40) {
2893 info->ifcfg.clockrate);
2897 fas216_reset_state(info);
2898 type = fas216_detect_type(info);
2899 info->scsi.type = chip_types[type];
2906 fas216_init_chip(info);
2913 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0] | CNTL1_DISR);
2914 fas216_writeb(info, REG_CMD, CMD_RESETSCSI);
2919 spin_unlock_irq(info->host->host_lock);
2921 spin_lock_irq(info->host->host_lock);
2923 fas216_writeb(info, REG_CNTL1, info->scsi.cfg[0]);
2924 fas216_readb(info, REG_INST);
2926 fas216_checkmagic(info);
2930 fas216_writeb(info, REG_CMD, CMD_RESETCHIP);
2939 FAS216_Info *info = (FAS216_Info *)host->hostdata;
2941 fas216_checkmagic(info);
2944 fas216_writeb(info, REG_CMD, CMD_RESETCHIP);
2956 FAS216_Info *info = (FAS216_Info *)host->hostdata;
2958 queue_free(&info->queues.disconnected);
2959 queue_free(&info->queues.issue);
2962 void fas216_print_host(FAS216_Info *info, struct seq_file *m)
2970 info->scsi.type, info->scsi.io_base,
2971 info->scsi.irq, info->scsi.dma);
2974 void fas216_print_stats(FAS216_Info *info, struct seq_file *m)
2988 info->stats.queues, info->stats.removes,
2989 info->stats.fins, info->stats.reads,
2990 info->stats.writes, info->stats.miscs,
2991 info->stats.disconnects, info->stats.aborts,
2992 info->stats.bus_resets, info->stats.host_resets);
2995 void fas216_print_devices(FAS216_Info *info, struct seq_file *m)
3002 shost_for_each_device(scd, info->host) {
3003 dev = &info->device[scd->id];