Lines Matching +full:host +full:- +full:command
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 /* NCR (or Symbios) 53c700 and 53c700-66 Driver
6 **-----------------------------------------------------------------------------
9 **-----------------------------------------------------------------------------
20 * The 700-66 can at least do synchronous SCSI up to 10MHz.
22 * The 700 chip has no host bus interface logic of its own. However,
27 * minimal wrapper for the purpose---see the NCR_D700 driver for
45 * bad bug having to do with 10 byte command processing and REQUEST
46 * SENSE (the command would loop forever getting a transfer length
54 * Bogendoerfer). Added missing SCp->request_bufflen initialisation
73 * Added support for the 53c710 chip (in 53c700 emulation mode only---no
135 * a non dereferenceable pointer to point to a structure in dma-able
149 MODULE_DESCRIPTION("53c700 and 53c700-66 Driver");
159 STATIC void NCR_700_chip_setup(struct Scsi_Host *host);
160 STATIC void NCR_700_chip_reset(struct Scsi_Host *host);
173 "before command phase",
174 "after command phase",
228 * NOTE: According to SCSI-2, the true transfer period (in ns) is
236 __u8 min_xferp = (hostdata->chip710 in NCR_700_offset_period_to_sxfer()
238 __u8 max_offset = (hostdata->chip710 in NCR_700_offset_period_to_sxfer()
244 if(period < hostdata->min_period) { in NCR_700_offset_period_to_sxfer()
246 period = hostdata->min_period; in NCR_700_offset_period_to_sxfer()
248 XFERP = (period*4 * hostdata->sync_clock)/1000 - 4; in NCR_700_offset_period_to_sxfer()
264 (struct NCR_700_Host_Parameters *)SDp->host->hostdata[0]; in NCR_700_get_SXFER()
267 spi_offset(SDp->sdev_target), in NCR_700_get_SXFER()
268 spi_period(SDp->sdev_target)); in NCR_700_get_SXFER()
273 return h->pScript + ((uintptr_t)p - (uintptr_t)h->script); in virt_to_dma()
279 if (h->noncoherent) in dma_sync_to_dev()
280 dma_sync_single_for_device(h->dev, virt_to_dma(h, addr), in dma_sync_to_dev()
287 if (h->noncoherent) in dma_sync_from_dev()
288 dma_sync_single_for_device(h->dev, virt_to_dma(h, addr), size, in dma_sync_from_dev()
299 struct Scsi_Host *host; in NCR_700_detect() local
303 if (tpnt->sdev_groups == NULL) in NCR_700_detect()
304 tpnt->sdev_groups = NCR_700_dev_groups; in NCR_700_detect()
308 hostdata->noncoherent = 1; in NCR_700_detect()
318 hostdata->msgin = memory + MSGIN_OFFSET; in NCR_700_detect()
319 hostdata->msgout = memory + MSGOUT_OFFSET; in NCR_700_detect()
320 hostdata->status = memory + STATUS_OFFSET; in NCR_700_detect()
321 hostdata->slots = (struct NCR_700_command_slot *)(memory + SLOTS_OFFSET); in NCR_700_detect()
322 hostdata->dev = dev; in NCR_700_detect()
326 /* Fill in the missing routines from the host template */ in NCR_700_detect()
327 tpnt->queuecommand = NCR_700_queuecommand; in NCR_700_detect()
328 tpnt->eh_abort_handler = NCR_700_abort; in NCR_700_detect()
329 tpnt->eh_host_reset_handler = NCR_700_host_reset; in NCR_700_detect()
330 tpnt->can_queue = NCR_700_COMMAND_SLOTS_PER_HOST; in NCR_700_detect()
331 tpnt->sg_tablesize = NCR_700_SG_SEGMENTS; in NCR_700_detect()
332 tpnt->cmd_per_lun = NCR_700_CMD_PER_LUN; in NCR_700_detect()
333 tpnt->slave_configure = NCR_700_slave_configure; in NCR_700_detect()
334 tpnt->slave_destroy = NCR_700_slave_destroy; in NCR_700_detect()
335 tpnt->slave_alloc = NCR_700_slave_alloc; in NCR_700_detect()
336 tpnt->change_queue_depth = NCR_700_change_queue_depth; in NCR_700_detect()
338 if(tpnt->name == NULL) in NCR_700_detect()
339 tpnt->name = "53c700"; in NCR_700_detect()
340 if(tpnt->proc_name == NULL) in NCR_700_detect()
341 tpnt->proc_name = "53c700"; in NCR_700_detect()
343 host = scsi_host_alloc(tpnt, 4); in NCR_700_detect()
344 if (!host) in NCR_700_detect()
346 memset(hostdata->slots, 0, sizeof(struct NCR_700_command_slot) in NCR_700_detect()
349 dma_addr_t offset = (dma_addr_t)((unsigned long)&hostdata->slots[j].SG[0] in NCR_700_detect()
350 - (unsigned long)&hostdata->slots[0].SG[0]); in NCR_700_detect()
351 hostdata->slots[j].pSG = (struct NCR_700_SG_List *)((unsigned long)(pSlots + offset)); in NCR_700_detect()
353 hostdata->free_list = &hostdata->slots[j]; in NCR_700_detect()
355 hostdata->slots[j-1].ITL_forw = &hostdata->slots[j]; in NCR_700_detect()
356 hostdata->slots[j].state = NCR_700_SLOT_FREE; in NCR_700_detect()
373 hostdata->script = script; in NCR_700_detect()
374 hostdata->pScript = pScript; in NCR_700_detect()
375 dma_sync_single_for_device(hostdata->dev, pScript, sizeof(SCRIPT), DMA_TO_DEVICE); in NCR_700_detect()
376 hostdata->state = NCR_700_HOST_FREE; in NCR_700_detect()
377 hostdata->cmd = NULL; in NCR_700_detect()
378 host->max_id = 8; in NCR_700_detect()
379 host->max_lun = NCR_700_MAX_LUNS; in NCR_700_detect()
381 host->transportt = NCR_700_transport_template; in NCR_700_detect()
382 host->unique_id = (unsigned long)hostdata->base; in NCR_700_detect()
383 hostdata->eh_complete = NULL; in NCR_700_detect()
384 host->hostdata[0] = (unsigned long)hostdata; in NCR_700_detect()
386 NCR_700_writeb(0xff, host, CTEST9_REG); in NCR_700_detect()
387 if (hostdata->chip710) in NCR_700_detect()
388 hostdata->rev = (NCR_700_readb(host, CTEST8_REG)>>4) & 0x0f; in NCR_700_detect()
390 hostdata->rev = (NCR_700_readb(host, CTEST7_REG)>>4) & 0x0f; in NCR_700_detect()
391 hostdata->fast = (NCR_700_readb(host, CTEST9_REG) == 0); in NCR_700_detect()
396 printk(KERN_NOTICE "scsi%d: %s rev %d %s\n", host->host_no, in NCR_700_detect()
397 hostdata->chip710 ? "53c710" : in NCR_700_detect()
398 (hostdata->fast ? "53c700-66" : "53c700"), in NCR_700_detect()
399 hostdata->rev, hostdata->differential ? in NCR_700_detect()
402 NCR_700_chip_reset(host); in NCR_700_detect()
404 if (scsi_add_host(host, dev)) { in NCR_700_detect()
406 scsi_host_put(host); in NCR_700_detect()
410 spi_signalling(host) = hostdata->differential ? SPI_SIGNAL_HVD : in NCR_700_detect()
413 return host; in NCR_700_detect()
417 NCR_700_release(struct Scsi_Host *host) in NCR_700_release() argument
420 (struct NCR_700_Host_Parameters *)host->hostdata[0]; in NCR_700_release()
422 if (hostdata->noncoherent) in NCR_700_release()
423 dma_free_noncoherent(hostdata->dev, TOTAL_MEM_SIZE, in NCR_700_release()
424 hostdata->script, hostdata->pScript, in NCR_700_release()
427 dma_free_coherent(hostdata->dev, TOTAL_MEM_SIZE, in NCR_700_release()
428 hostdata->script, hostdata->pScript); in NCR_700_release()
441 * Function : static int data_residual (Scsi_Host *host)
449 * Inputs : host - SCSI host */
451 NCR_700_data_residual (struct Scsi_Host *host) { in NCR_700_data_residual() argument
453 (struct NCR_700_Host_Parameters *)host->hostdata[0]; in NCR_700_data_residual()
457 if(hostdata->chip710) { in NCR_700_data_residual()
458 count = ((NCR_700_readb(host, DFIFO_REG) & 0x7f) - in NCR_700_data_residual()
459 (NCR_700_readl(host, DBC_REG) & 0x7f)) & 0x7f; in NCR_700_data_residual()
461 count = ((NCR_700_readb(host, DFIFO_REG) & 0x3f) - in NCR_700_data_residual()
462 (NCR_700_readl(host, DBC_REG) & 0x3f)) & 0x3f; in NCR_700_data_residual()
465 if(hostdata->fast) in NCR_700_data_residual()
466 synchronous = NCR_700_readb(host, SXFER_REG) & 0x0f; in NCR_700_data_residual()
469 ddir = NCR_700_readb(host, CTEST0_REG) & 0x01; in NCR_700_data_residual()
474 count += (NCR_700_readb(host, SSTAT2_REG) & 0xf0) >> 4; in NCR_700_data_residual()
476 if (NCR_700_readb(host, SSTAT1_REG) & SIDL_REG_FULL) in NCR_700_data_residual()
480 __u8 sstat = NCR_700_readb(host, SSTAT1_REG); in NCR_700_data_residual()
524 struct NCR_700_command_slot *slot = hostdata->free_list; in find_empty_slot()
528 if(hostdata->command_slot_count != NCR_700_COMMAND_SLOTS_PER_HOST) in find_empty_slot()
529 …printk(KERN_ERR "SLOTS FULL, but count is %d, should be %d\n", hostdata->command_slot_count, NCR_7… in find_empty_slot()
533 if(slot->state != NCR_700_SLOT_FREE) in find_empty_slot()
538 hostdata->free_list = slot->ITL_forw; in find_empty_slot()
539 slot->ITL_forw = NULL; in find_empty_slot()
544 * finish routine. If we cannot queue the command when it in find_empty_slot()
546 slot->state = NCR_700_SLOT_BUSY; in find_empty_slot()
547 slot->flags = 0; in find_empty_slot()
548 hostdata->command_slot_count++; in find_empty_slot()
557 if((slot->state & NCR_700_SLOT_MASK) != NCR_700_SLOT_MAGIC) { in free_slot()
560 if(slot->state == NCR_700_SLOT_FREE) { in free_slot()
564 slot->resume_offset = 0; in free_slot()
565 slot->cmnd = NULL; in free_slot()
566 slot->state = NCR_700_SLOT_FREE; in free_slot()
567 slot->ITL_forw = hostdata->free_list; in free_slot()
568 hostdata->free_list = slot; in free_slot()
569 hostdata->command_slot_count--; in free_slot()
573 /* This routine really does very little. The command is indexed on
582 (struct NCR_700_command_slot *)SCp->host_scribble; in save_for_reselection()
584 slot->resume_offset = dsp; in save_for_reselection()
586 hostdata->state = NCR_700_HOST_FREE; in save_for_reselection()
587 hostdata->cmd = NULL; in save_for_reselection()
594 if(SCp->sc_data_direction != DMA_NONE && in NCR_700_unmap()
595 SCp->sc_data_direction != DMA_BIDIRECTIONAL) in NCR_700_unmap()
603 hostdata->state = NCR_700_HOST_FREE; in NCR_700_scsi_done()
604 hostdata->cmd = NULL; in NCR_700_scsi_done()
608 (struct NCR_700_command_slot *)SCp->host_scribble; in NCR_700_scsi_done()
610 dma_unmap_single(hostdata->dev, slot->pCmd, in NCR_700_scsi_done()
612 if (slot->flags == NCR_700_FLAG_AUTOSENSE) { in NCR_700_scsi_done()
613 char *cmnd = NCR_700_get_sense_cmnd(SCp->device); in NCR_700_scsi_done()
615 dma_unmap_single(hostdata->dev, slot->dma_handle, in NCR_700_scsi_done()
622 SCp->cmd_len = cmnd[8]; in NCR_700_scsi_done()
628 if(NCR_700_get_depth(SCp->device) == 0 || in NCR_700_scsi_done()
629 NCR_700_get_depth(SCp->device) > SCp->device->queue_depth) in NCR_700_scsi_done()
631 NCR_700_get_depth(SCp->device)); in NCR_700_scsi_done()
633 NCR_700_set_depth(SCp->device, NCR_700_get_depth(SCp->device) - 1); in NCR_700_scsi_done()
635 SCp->host_scribble = NULL; in NCR_700_scsi_done()
636 SCp->result = result; in NCR_700_scsi_done()
645 NCR_700_internal_bus_reset(struct Scsi_Host *host) in NCR_700_internal_bus_reset() argument
648 NCR_700_writeb(ASSERT_RST, host, SCNTL1_REG); in NCR_700_internal_bus_reset()
650 NCR_700_writeb(0, host, SCNTL1_REG); in NCR_700_internal_bus_reset()
655 NCR_700_chip_setup(struct Scsi_Host *host) in NCR_700_chip_setup() argument
658 (struct NCR_700_Host_Parameters *)host->hostdata[0]; in NCR_700_chip_setup()
660 __u8 min_xferp = (hostdata->chip710 ? NCR_710_MIN_XFERP : NCR_700_MIN_XFERP); in NCR_700_chip_setup()
662 if(hostdata->chip710) { in NCR_700_chip_setup()
666 switch (hostdata->burst_length) { in NCR_700_chip_setup()
683 hostdata->dcntl_extra |= COMPAT_700_MODE; in NCR_700_chip_setup()
685 NCR_700_writeb(hostdata->dcntl_extra, host, DCNTL_REG); in NCR_700_chip_setup()
686 NCR_700_writeb(burst_length | hostdata->dmode_extra, in NCR_700_chip_setup()
687 host, DMODE_710_REG); in NCR_700_chip_setup()
688 NCR_700_writeb(burst_disable | hostdata->ctest7_extra | in NCR_700_chip_setup()
689 (hostdata->differential ? DIFF : 0), in NCR_700_chip_setup()
690 host, CTEST7_REG); in NCR_700_chip_setup()
691 NCR_700_writeb(BTB_TIMER_DISABLE, host, CTEST0_REG); in NCR_700_chip_setup()
693 | AUTO_ATN, host, SCNTL0_REG); in NCR_700_chip_setup()
695 NCR_700_writeb(BURST_LENGTH_8 | hostdata->dmode_extra, in NCR_700_chip_setup()
696 host, DMODE_700_REG); in NCR_700_chip_setup()
697 NCR_700_writeb(hostdata->differential ? in NCR_700_chip_setup()
698 DIFF : 0, host, CTEST7_REG); in NCR_700_chip_setup()
699 if(hostdata->fast) { in NCR_700_chip_setup()
700 /* this is for 700-66, does nothing on 700 */ in NCR_700_chip_setup()
702 | GENERATE_RECEIVE_PARITY, host, in NCR_700_chip_setup()
706 | PARITY | AUTO_ATN, host, SCNTL0_REG); in NCR_700_chip_setup()
710 NCR_700_writeb(1 << host->this_id, host, SCID_REG); in NCR_700_chip_setup()
711 NCR_700_writeb(0, host, SBCL_REG); in NCR_700_chip_setup()
712 NCR_700_writeb(ASYNC_OPERATION, host, SXFER_REG); in NCR_700_chip_setup()
715 | RST_INT | PAR_ERR_INT | SELECT_INT, host, SIEN_REG); in NCR_700_chip_setup()
717 NCR_700_writeb(ABORT_INT | INT_INST_INT | ILGL_INST_INT, host, DIEN_REG); in NCR_700_chip_setup()
718 NCR_700_writeb(ENABLE_SELECT, host, SCNTL1_REG); in NCR_700_chip_setup()
719 if(hostdata->clock > 75) { in NCR_700_chip_setup()
720 …lock speed %dMHz is too high: 75Mhz is the maximum this chip can be driven at\n", hostdata->clock); in NCR_700_chip_setup()
724 NCR_700_writeb(SYNC_DIV_2_0, host, SBCL_REG); in NCR_700_chip_setup()
725 NCR_700_writeb(ASYNC_DIV_3_0 | hostdata->dcntl_extra, host, DCNTL_REG); in NCR_700_chip_setup()
726 hostdata->sync_clock = hostdata->clock/2; in NCR_700_chip_setup()
727 } else if(hostdata->clock > 50 && hostdata->clock <= 75) { in NCR_700_chip_setup()
730 NCR_700_writeb(SYNC_DIV_1_5, host, SBCL_REG); in NCR_700_chip_setup()
731 NCR_700_writeb(ASYNC_DIV_3_0 | hostdata->dcntl_extra, host, DCNTL_REG); in NCR_700_chip_setup()
732 hostdata->sync_clock = hostdata->clock*2; in NCR_700_chip_setup()
733 hostdata->sync_clock /= 3; in NCR_700_chip_setup()
735 } else if(hostdata->clock > 37 && hostdata->clock <= 50) { in NCR_700_chip_setup()
738 NCR_700_writeb(SYNC_DIV_1_0, host, SBCL_REG); in NCR_700_chip_setup()
739 NCR_700_writeb(ASYNC_DIV_2_0 | hostdata->dcntl_extra, host, DCNTL_REG); in NCR_700_chip_setup()
740 hostdata->sync_clock = hostdata->clock; in NCR_700_chip_setup()
741 } else if(hostdata->clock > 25 && hostdata->clock <=37) { in NCR_700_chip_setup()
744 NCR_700_writeb(SYNC_DIV_1_0, host, SBCL_REG); in NCR_700_chip_setup()
745 NCR_700_writeb(ASYNC_DIV_1_5 | hostdata->dcntl_extra, host, DCNTL_REG); in NCR_700_chip_setup()
746 hostdata->sync_clock = hostdata->clock; in NCR_700_chip_setup()
749 NCR_700_writeb(SYNC_DIV_1_0, host, SBCL_REG); in NCR_700_chip_setup()
750 NCR_700_writeb(ASYNC_DIV_1_0 | hostdata->dcntl_extra, host, DCNTL_REG); in NCR_700_chip_setup()
752 hostdata->sync_clock = hostdata->clock; in NCR_700_chip_setup()
758 min_period = 1000*(4+min_xferp)/(4*hostdata->sync_clock); in NCR_700_chip_setup()
759 hostdata->min_period = NCR_700_MIN_PERIOD; in NCR_700_chip_setup()
761 hostdata->min_period = min_period; in NCR_700_chip_setup()
765 NCR_700_chip_reset(struct Scsi_Host *host) in NCR_700_chip_reset() argument
768 (struct NCR_700_Host_Parameters *)host->hostdata[0]; in NCR_700_chip_reset()
769 if(hostdata->chip710) { in NCR_700_chip_reset()
770 NCR_700_writeb(SOFTWARE_RESET_710, host, ISTAT_REG); in NCR_700_chip_reset()
773 NCR_700_writeb(0, host, ISTAT_REG); in NCR_700_chip_reset()
775 NCR_700_writeb(SOFTWARE_RESET, host, DCNTL_REG); in NCR_700_chip_reset()
778 NCR_700_writeb(0, host, DCNTL_REG); in NCR_700_chip_reset()
783 NCR_700_chip_setup(host); in NCR_700_chip_reset()
793 process_extended_message(struct Scsi_Host *host, in process_extended_message() argument
801 pun = SCp->device->id; in process_extended_message()
802 lun = SCp->device->lun; in process_extended_message()
805 switch(hostdata->msgin[2]) { in process_extended_message()
807 if(SCp != NULL && NCR_700_is_flag_set(SCp->device, NCR_700_DEV_BEGIN_SYNC_NEGOTIATION)) { in process_extended_message()
808 struct scsi_target *starget = SCp->device->sdev_target; in process_extended_message()
809 __u8 period = hostdata->msgin[3]; in process_extended_message()
810 __u8 offset = hostdata->msgin[4]; in process_extended_message()
820 if(NCR_700_is_flag_set(SCp->device, NCR_700_DEV_PRINT_SYNC_NEGOTIATION)) { in process_extended_message()
822 NCR_700_clear_flag(SCp->device, NCR_700_DEV_PRINT_SYNC_NEGOTIATION); in process_extended_message()
825 NCR_700_set_flag(SCp->device, NCR_700_DEV_NEGOTIATED_SYNC); in process_extended_message()
826 NCR_700_clear_flag(SCp->device, NCR_700_DEV_BEGIN_SYNC_NEGOTIATION); in process_extended_message()
828 NCR_700_writeb(NCR_700_get_SXFER(SCp->device), in process_extended_message()
829 host, SXFER_REG); in process_extended_message()
833 shost_printk(KERN_WARNING, host, in process_extended_message()
835 hostdata->msgout[0] = A_REJECT_MSG; in process_extended_message()
836 dma_sync_to_dev(hostdata, hostdata->msgout, 1); in process_extended_message()
837 script_patch_16(hostdata, hostdata->script, in process_extended_message()
841 resume_offset = hostdata->pScript + Ent_SendMessageWithATN; in process_extended_message()
847 host->host_no, pun, lun); in process_extended_message()
848 hostdata->msgout[0] = A_REJECT_MSG; in process_extended_message()
849 dma_sync_to_dev(hostdata, hostdata->msgout, 1); in process_extended_message()
850 script_patch_16(hostdata, hostdata->script, MessageCount, 1); in process_extended_message()
851 resume_offset = hostdata->pScript + Ent_SendMessageWithATN; in process_extended_message()
857 host->host_no, pun, lun, in process_extended_message()
859 spi_print_msg(hostdata->msgin); in process_extended_message()
862 hostdata->msgout[0] = A_REJECT_MSG; in process_extended_message()
863 dma_sync_to_dev(hostdata, hostdata->msgout, 1); in process_extended_message()
864 script_patch_16(hostdata, hostdata->script, MessageCount, 1); in process_extended_message()
867 resume_offset = hostdata->pScript + Ent_SendMessageWithATN; in process_extended_message()
869 NCR_700_writel(temp, host, TEMP_REG); in process_extended_message()
874 process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata, in process_message() argument
882 pun = SCp->device->id; in process_message()
883 lun = SCp->device->lun; in process_message()
887 printk("scsi%d (%d:%d): message %s: ", host->host_no, pun, lun, in process_message()
889 spi_print_msg(hostdata->msgin); in process_message()
893 switch(hostdata->msgin[0]) { in process_message()
896 resume_offset = process_extended_message(host, hostdata, SCp, in process_message()
901 if(SCp != NULL && NCR_700_is_flag_set(SCp->device, NCR_700_DEV_BEGIN_SYNC_NEGOTIATION)) { in process_message()
903 spi_period(SCp->device->sdev_target) = in process_message()
904 spi_offset(SCp->device->sdev_target) = 0; in process_message()
905 NCR_700_set_flag(SCp->device, NCR_700_DEV_NEGOTIATED_SYNC); in process_message()
906 NCR_700_clear_flag(SCp->device, NCR_700_DEV_BEGIN_SYNC_NEGOTIATION); in process_message()
907 …} else if(SCp != NULL && NCR_700_get_tag_neg_state(SCp->device) == NCR_700_DURING_TAG_NEGOTIATION)… in process_message()
912 NCR_700_set_tag_neg_state(SCp->device, NCR_700_FINISHED_TAG_NEGOTIATION); in process_message()
913 hostdata->tag_negotiated &= ~(1<<scmd_id(SCp)); in process_message()
915 SCp->device->tagged_supported = 0; in process_message()
916 SCp->device->simple_tags = 0; in process_message()
917 scsi_change_queue_depth(SCp->device, host->cmd_per_lun); in process_message()
919 shost_printk(KERN_WARNING, host, in process_message()
928 printk(KERN_ERR "scsi%d (%d:%d) Parity Error!\n", host->host_no, in process_message()
930 NCR_700_internal_bus_reset(host); in process_message()
933 printk(KERN_INFO "scsi%d (%d:%d) SIMPLE TAG %d %s\n", host->host_no, in process_message()
934 pun, lun, hostdata->msgin[1], in process_message()
940 host->host_no, pun, lun, in process_message()
943 spi_print_msg(hostdata->msgin); in process_message()
946 hostdata->msgout[0] = A_REJECT_MSG; in process_message()
947 dma_sync_to_dev(hostdata, hostdata->msgout, 1); in process_message()
948 script_patch_16(hostdata, hostdata->script, MessageCount, 1); in process_message()
951 resume_offset = hostdata->pScript + Ent_SendMessageWithATN; in process_message()
955 NCR_700_writel(temp, host, TEMP_REG); in process_message()
957 dma_sync_from_dev(hostdata, hostdata->msgin, MSG_ARRAY_SIZE); in process_message()
963 struct Scsi_Host *host, in process_script_interrupt() argument
970 pun = SCp->device->id; in process_script_interrupt()
971 lun = SCp->device->lun; in process_script_interrupt()
975 DEBUG((" COMMAND COMPLETE, status=%02x\n", in process_script_interrupt()
976 hostdata->status[0])); in process_script_interrupt()
978 if (NCR_700_get_tag_neg_state(SCp->device) == NCR_700_DURING_TAG_NEGOTIATION) in process_script_interrupt()
979 NCR_700_set_tag_neg_state(SCp->device, in process_script_interrupt()
983 if (hostdata->status[0] == SAM_STAT_CHECK_CONDITION || in process_script_interrupt()
984 hostdata->status[0] == SAM_STAT_COMMAND_TERMINATED) { in process_script_interrupt()
986 (struct NCR_700_command_slot *)SCp->host_scribble; in process_script_interrupt()
987 if(slot->flags == NCR_700_FLAG_AUTOSENSE) { in process_script_interrupt()
992 NCR_700_scsi_done(hostdata, SCp, hostdata->status[0]); in process_script_interrupt()
995 NCR_700_get_sense_cmnd(SCp->device); in process_script_interrupt()
999 SCp, hostdata->status[0]); in process_script_interrupt()
1001 /* we can destroy the command here in process_script_interrupt()
1004 * will re-copy the command from the in process_script_interrupt()
1006 * data associated with the command in process_script_interrupt()
1009 dma_unmap_single(hostdata->dev, slot->pCmd, in process_script_interrupt()
1020 * REQUEST_SENSE command is six bytes, in process_script_interrupt()
1024 * of the command */ in process_script_interrupt()
1026 cmnd[7] = hostdata->status[0]; in process_script_interrupt()
1027 cmnd[8] = SCp->cmd_len; in process_script_interrupt()
1028 SCp->cmd_len = 6; /* command length for in process_script_interrupt()
1030 slot->pCmd = dma_map_single(hostdata->dev, cmnd, MAX_COMMAND_SIZE, DMA_TO_DEVICE); in process_script_interrupt()
1031 …slot->dma_handle = dma_map_single(hostdata->dev, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE, DMA_FRO… in process_script_interrupt()
1032 slot->SG[0].ins = bS_to_host(SCRIPT_MOVE_DATA_IN | SCSI_SENSE_BUFFERSIZE); in process_script_interrupt()
1033 slot->SG[0].pAddr = bS_to_host(slot->dma_handle); in process_script_interrupt()
1034 slot->SG[1].ins = bS_to_host(SCRIPT_RETURN); in process_script_interrupt()
1035 slot->SG[1].pAddr = 0; in process_script_interrupt()
1036 slot->resume_offset = hostdata->pScript; in process_script_interrupt()
1037 dma_sync_to_dev(hostdata, slot->SG, sizeof(slot->SG[0])*2); in process_script_interrupt()
1038 dma_sync_from_dev(hostdata, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE); in process_script_interrupt()
1040 /* queue the command for reissue */ in process_script_interrupt()
1041 slot->state = NCR_700_SLOT_QUEUED; in process_script_interrupt()
1042 slot->flags = NCR_700_FLAG_AUTOSENSE; in process_script_interrupt()
1043 hostdata->state = NCR_700_HOST_FREE; in process_script_interrupt()
1044 hostdata->cmd = NULL; in process_script_interrupt()
1050 //if(status_byte(hostdata->status[0]) == GOOD && in process_script_interrupt()
1051 // SCp->cmnd[0] == INQUIRY && SCp->use_sg == 0) { in process_script_interrupt()
1053 // * on this command */ in process_script_interrupt()
1054 // dma_sync_single_for_cpu(hostdata->dev, in process_script_interrupt()
1055 // slot->dma_handle, in process_script_interrupt()
1056 // SCp->request_bufflen, in process_script_interrupt()
1058 // if(((char *)SCp->request_buffer)[7] & 0x02) { in process_script_interrupt()
1060 // "Enabling Tag Command Queuing\n"); in process_script_interrupt()
1061 // hostdata->tag_negotiated |= (1<<scmd_id(SCp)); in process_script_interrupt()
1062 // NCR_700_set_flag(SCp->device, NCR_700_DEV_BEGIN_TAG_QUEUEING); in process_script_interrupt()
1064 // NCR_700_clear_flag(SCp->device, NCR_700_DEV_BEGIN_TAG_QUEUEING); in process_script_interrupt()
1065 // hostdata->tag_negotiated &= ~(1<<scmd_id(SCp)); in process_script_interrupt()
1068 NCR_700_scsi_done(hostdata, SCp, hostdata->status[0]); in process_script_interrupt()
1075 sbcl_to_string(NCR_700_readb(host, SBCL_REG))); in process_script_interrupt()
1077 SCp->cmd_len); in process_script_interrupt()
1080 NCR_700_internal_bus_reset(host); in process_script_interrupt()
1085 host->host_no, pun, lun, NCR_700_fatal_messages[i]); in process_script_interrupt()
1088 hostdata->msgin[0], hostdata->msgin[1]); in process_script_interrupt()
1090 NCR_700_internal_bus_reset(host); in process_script_interrupt()
1096 host->host_no, pun, lun, in process_script_interrupt()
1104 __u8 reselection_id = hostdata->reselection_id; in process_script_interrupt()
1107 lun = hostdata->msgin[0] & 0x1f; in process_script_interrupt()
1109 hostdata->reselection_id = 0xff; in process_script_interrupt()
1111 host->host_no, reselection_id, lun)); in process_script_interrupt()
1113 SDp = __scsi_device_lookup(host, 0, reselection_id, lun); in process_script_interrupt()
1116 host->host_no, reselection_id, lun); in process_script_interrupt()
1119 if(hostdata->msgin[1] == A_SIMPLE_TAG_MSG) { in process_script_interrupt()
1122 SCp = scsi_host_find_tag(SDp->host, hostdata->msgin[2]); in process_script_interrupt()
1125 host->host_no, reselection_id, lun, hostdata->msgin[2]); in process_script_interrupt()
1129 slot = (struct NCR_700_command_slot *)SCp->host_scribble; in process_script_interrupt()
1132 hostdata->msgin[2], slot, slot->tag); in process_script_interrupt()
1134 struct NCR_700_Device_Parameters *p = SDp->hostdata; in process_script_interrupt()
1135 struct scsi_cmnd *SCp = p->current_cmnd; in process_script_interrupt()
1142 slot = (struct NCR_700_command_slot *)SCp->host_scribble; in process_script_interrupt()
1146 printk(KERN_ERR "scsi%d: (%d:%d) RESELECTED but no saved command (MSG = %02x %02x %02x)!!\n", in process_script_interrupt()
1147 host->host_no, reselection_id, lun, in process_script_interrupt()
1148 hostdata->msgin[0], hostdata->msgin[1], in process_script_interrupt()
1149 hostdata->msgin[2]); in process_script_interrupt()
1151 if(hostdata->state != NCR_700_HOST_BUSY) in process_script_interrupt()
1152 printk(KERN_ERR "scsi%d: FATAL, host not busy during valid reselection!\n", in process_script_interrupt()
1153 host->host_no); in process_script_interrupt()
1154 resume_offset = slot->resume_offset; in process_script_interrupt()
1155 hostdata->cmd = slot->cmnd; in process_script_interrupt()
1157 /* re-patch for this command */ in process_script_interrupt()
1158 script_patch_32_abs(hostdata, hostdata->script, in process_script_interrupt()
1159 CommandAddress, slot->pCmd); in process_script_interrupt()
1160 script_patch_16(hostdata, hostdata->script, in process_script_interrupt()
1161 CommandCount, slot->cmnd->cmd_len); in process_script_interrupt()
1162 script_patch_32_abs(hostdata, hostdata->script, in process_script_interrupt()
1164 to32bit(&slot->pSG[0].ins)); in process_script_interrupt()
1171 NCR_700_writeb(NCR_700_get_SXFER(hostdata->cmd->device), in process_script_interrupt()
1172 host, SXFER_REG); in process_script_interrupt()
1173 dma_sync_from_dev(hostdata, hostdata->msgin, in process_script_interrupt()
1175 dma_sync_to_dev(hostdata, hostdata->msgout, in process_script_interrupt()
1177 /* I'm just being paranoid here, the command should in process_script_interrupt()
1179 dma_sync_to_dev(hostdata, slot->cmnd->cmnd, in process_script_interrupt()
1180 slot->cmnd->cmd_len); in process_script_interrupt()
1194 __u8 reselection_id = NCR_700_readb(host, SFBR_REG); in process_script_interrupt()
1198 reselection_id &= ~(1<<host->this_id); in process_script_interrupt()
1203 …host->host_no, reselection_id, lun, dsp, dsp - hostdata->pScript, hostdata->state, hostdata->comma… in process_script_interrupt()
1207 __u32 SG = (__u32)bS_to_cpu(hostdata->script[A_SGScriptStartAddress_used[0]]); in process_script_interrupt()
1211 if(SG >= to32bit(&hostdata->slots[i].pSG[0]) in process_script_interrupt()
1212 && SG <= to32bit(&hostdata->slots[i].pSG[NCR_700_SG_SEGMENTS])) in process_script_interrupt()
1215 …eing %08x in slot %p, cmd %p, slot->resume_offset=%08x\n", SG, &hostdata->slots[i], hostdata->slot… in process_script_interrupt()
1216 SCp = hostdata->slots[i].cmnd; in process_script_interrupt()
1220 slot = (struct NCR_700_command_slot *)SCp->host_scribble; in process_script_interrupt()
1221 /* change slot from busy to queued to redo command */ in process_script_interrupt()
1222 slot->state = NCR_700_SLOT_QUEUED; in process_script_interrupt()
1224 hostdata->cmd = NULL; in process_script_interrupt()
1227 if(hostdata->reselection_id == 0xff) { in process_script_interrupt()
1228 printk(KERN_ERR "scsi%d: Invalid reselection during selection!!\n", host->host_no); in process_script_interrupt()
1232 host->host_no); in process_script_interrupt()
1233 reselection_id = hostdata->reselection_id; in process_script_interrupt()
1240 hostdata->reselection_id = reselection_id; in process_script_interrupt()
1242 hostdata->msgin[1] = 0; in process_script_interrupt()
1243 dma_sync_to_dev(hostdata, hostdata->msgin, MSG_ARRAY_SIZE); in process_script_interrupt()
1244 if(hostdata->tag_negotiated & (1<<reselection_id)) { in process_script_interrupt()
1245 resume_offset = hostdata->pScript + Ent_GetReselectionWithTag; in process_script_interrupt()
1247 resume_offset = hostdata->pScript + Ent_GetReselectionData; in process_script_interrupt()
1251 * a return here will re-run the queued command slot in process_script_interrupt()
1255 resume_offset = process_message(host, hostdata, SCp, in process_script_interrupt()
1260 host->host_no, pun, lun, NCR_700_condition[i], in process_script_interrupt()
1261 NCR_700_phase[j], dsp - hostdata->pScript); in process_script_interrupt()
1267 …08x\n", i, sg->length, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].ins, ((struct NC… in process_script_interrupt()
1270 NCR_700_internal_bus_reset(host); in process_script_interrupt()
1273 host->host_no, pun, lun, dsps & 0xfff, dsp, dsp - hostdata->pScript); in process_script_interrupt()
1277 host->host_no, pun, lun, dsps, dsp - hostdata->pScript); in process_script_interrupt()
1278 NCR_700_internal_bus_reset(host); in process_script_interrupt()
1291 process_selection(struct Scsi_Host *host, __u32 dsp) in process_selection() argument
1297 (struct NCR_700_Host_Parameters *)host->hostdata[0]; in process_selection()
1298 struct scsi_cmnd *SCp = hostdata->cmd; in process_selection()
1302 id = NCR_700_readb(host, hostdata->chip710 ? in process_selection()
1306 id &= ~(1<<host->this_id); in process_selection()
1311 sbcl = NCR_700_readb(host, SBCL_REG); in process_selection()
1317 hostdata->reselection_id = id = bitmap_to_number(id); in process_selection()
1319 host->host_no, id)); in process_selection()
1321 if(hostdata->state == NCR_700_HOST_BUSY && SCp != NULL) { in process_selection()
1323 (struct NCR_700_command_slot *)SCp->host_scribble; in process_selection()
1324 …G: RESELECTION OF BUSY HOST, saving cmd %p, slot %p, addr %x [%04x], resume %x!\n", id, hostdata->… in process_selection()
1326 switch(dsp - hostdata->pScript) { in process_selection()
1329 save_for_reselection(hostdata, SCp, Ent_Disconnect2 + hostdata->pScript); in process_selection()
1333 save_for_reselection(hostdata, SCp, Ent_Disconnect4 + hostdata->pScript); in process_selection()
1337 save_for_reselection(hostdata, SCp, Ent_Disconnect6 + hostdata->pScript); in process_selection()
1341 save_for_reselection(hostdata, SCp, Ent_Disconnect8 + hostdata->pScript); in process_selection()
1345 process_script_interrupt(A_GOOD_STATUS_AFTER_STATUS, dsp, SCp, host, hostdata); in process_selection()
1349 slot->state = NCR_700_SLOT_QUEUED; in process_selection()
1353 hostdata->state = NCR_700_HOST_BUSY; in process_selection()
1354 hostdata->cmd = NULL; in process_selection()
1356 hostdata->msgin[1] = 0; in process_selection()
1357 dma_sync_to_dev(hostdata, hostdata->msgin, MSG_ARRAY_SIZE); in process_selection()
1361 resume_offset = hostdata->pScript + Ent_SelectedAsTarget; in process_selection()
1362 } else if(hostdata->tag_negotiated & (1<<id)) { in process_selection()
1363 resume_offset = hostdata->pScript + Ent_GetReselectionWithTag; in process_selection()
1365 resume_offset = hostdata->pScript + Ent_GetReselectionData; in process_selection()
1371 NCR_700_clear_fifo(struct Scsi_Host *host) { in NCR_700_clear_fifo() argument
1373 = (struct NCR_700_Host_Parameters *)host->hostdata[0]; in NCR_700_clear_fifo()
1374 if(hostdata->chip710) { in NCR_700_clear_fifo()
1375 NCR_700_writeb(CLR_FIFO_710, host, CTEST8_REG); in NCR_700_clear_fifo()
1377 NCR_700_writeb(CLR_FIFO, host, DFIFO_REG); in NCR_700_clear_fifo()
1382 NCR_700_flush_fifo(struct Scsi_Host *host) { in NCR_700_flush_fifo() argument
1384 = (struct NCR_700_Host_Parameters *)host->hostdata[0]; in NCR_700_flush_fifo()
1385 if(hostdata->chip710) { in NCR_700_flush_fifo()
1386 NCR_700_writeb(FLUSH_DMA_FIFO_710, host, CTEST8_REG); in NCR_700_flush_fifo()
1388 NCR_700_writeb(0, host, CTEST8_REG); in NCR_700_flush_fifo()
1390 NCR_700_writeb(FLUSH_DMA_FIFO, host, DFIFO_REG); in NCR_700_flush_fifo()
1392 NCR_700_writeb(0, host, DFIFO_REG); in NCR_700_flush_fifo()
1403 (struct NCR_700_command_slot *)SCp->host_scribble; in NCR_700_start_command()
1405 (struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0]; in NCR_700_start_command()
1407 u8 lun = SCp->device->lun; in NCR_700_start_command()
1409 if(hostdata->state != NCR_700_HOST_FREE) { in NCR_700_start_command()
1411 * the running command finishes on another CPU while we don't in NCR_700_start_command()
1413 slot->state = NCR_700_SLOT_QUEUED; in NCR_700_start_command()
1415 DEBUG(("scsi%d: host busy, queueing command %p, slot %p\n", in NCR_700_start_command()
1416 SCp->device->host->host_no, slot->cmnd, slot)); in NCR_700_start_command()
1419 hostdata->state = NCR_700_HOST_BUSY; in NCR_700_start_command()
1420 hostdata->cmd = SCp; in NCR_700_start_command()
1421 slot->state = NCR_700_SLOT_BUSY; in NCR_700_start_command()
1422 /* keep interrupts disabled until we have the command correctly in NCR_700_start_command()
1425 hostdata->msgout[0] = NCR_700_identify((SCp->cmnd[0] != REQUEST_SENSE && in NCR_700_start_command()
1426 slot->flags != NCR_700_FLAG_AUTOSENSE), in NCR_700_start_command()
1431 if(SCp->cmnd[0] == INQUIRY || SCp->cmnd[0] == REQUEST_SENSE || in NCR_700_start_command()
1432 slot->flags == NCR_700_FLAG_AUTOSENSE) { in NCR_700_start_command()
1433 NCR_700_clear_flag(SCp->device, NCR_700_DEV_NEGOTIATED_SYNC); in NCR_700_start_command()
1440 if((hostdata->tag_negotiated & (1<<scmd_id(SCp))) in NCR_700_start_command()
1441 && (slot->tag != SCSI_NO_TAG && SCp->cmnd[0] != REQUEST_SENSE && in NCR_700_start_command()
1442 slot->flags != NCR_700_FLAG_AUTOSENSE)) { in NCR_700_start_command()
1443 count += spi_populate_tag_msg(&hostdata->msgout[count], SCp); in NCR_700_start_command()
1446 if(hostdata->fast && in NCR_700_start_command()
1447 NCR_700_is_flag_clear(SCp->device, NCR_700_DEV_NEGOTIATED_SYNC)) { in NCR_700_start_command()
1448 count += spi_populate_sync_msg(&hostdata->msgout[count], in NCR_700_start_command()
1449 spi_period(SCp->device->sdev_target), in NCR_700_start_command()
1450 spi_offset(SCp->device->sdev_target)); in NCR_700_start_command()
1451 NCR_700_set_flag(SCp->device, NCR_700_DEV_BEGIN_SYNC_NEGOTIATION); in NCR_700_start_command()
1454 script_patch_16(hostdata, hostdata->script, MessageCount, count); in NCR_700_start_command()
1456 script_patch_ID(hostdata, hostdata->script, Device_ID, 1<<scmd_id(SCp)); in NCR_700_start_command()
1458 script_patch_32_abs(hostdata, hostdata->script, CommandAddress, in NCR_700_start_command()
1459 slot->pCmd); in NCR_700_start_command()
1460 script_patch_16(hostdata, hostdata->script, CommandCount, SCp->cmd_len); in NCR_700_start_command()
1463 script_patch_32_abs(hostdata, hostdata->script, in NCR_700_start_command()
1464 SGScriptStartAddress, to32bit(&slot->pSG[0].ins)); in NCR_700_start_command()
1465 NCR_700_clear_fifo(SCp->device->host); in NCR_700_start_command()
1467 if(slot->resume_offset == 0) in NCR_700_start_command()
1468 slot->resume_offset = hostdata->pScript; in NCR_700_start_command()
1470 dma_sync_to_dev(hostdata, hostdata->msgout, count); in NCR_700_start_command()
1471 dma_sync_from_dev(hostdata, hostdata->msgin, MSG_ARRAY_SIZE); in NCR_700_start_command()
1472 dma_sync_to_dev(hostdata, SCp->cmnd, SCp->cmd_len); in NCR_700_start_command()
1473 dma_sync_from_dev(hostdata, hostdata->status, 1); in NCR_700_start_command()
1476 NCR_700_writeb(NCR_700_get_SXFER(SCp->device), in NCR_700_start_command()
1477 SCp->device->host, SXFER_REG); in NCR_700_start_command()
1478 NCR_700_writel(slot->temp, SCp->device->host, TEMP_REG); in NCR_700_start_command()
1479 NCR_700_writel(slot->resume_offset, SCp->device->host, DSP_REG); in NCR_700_start_command()
1487 struct Scsi_Host *host = (struct Scsi_Host *)dev_id; in NCR_700_intr() local
1489 (struct NCR_700_Host_Parameters *)host->hostdata[0]; in NCR_700_intr()
1496 /* Use the host lock to serialise access to the 53c700 in NCR_700_intr()
1499 * need to ensure that for this driver, the host lock and the in NCR_700_intr()
1501 spin_lock_irqsave(host->host_lock, flags); in NCR_700_intr()
1502 if((istat = NCR_700_readb(host, ISTAT_REG)) in NCR_700_intr()
1507 struct scsi_cmnd *SCp = hostdata->cmd; in NCR_700_intr()
1514 sstat0 = NCR_700_readb(host, SSTAT0_REG); in NCR_700_intr()
1520 dstat = NCR_700_readb(host, DSTAT_REG); in NCR_700_intr()
1523 dsps = NCR_700_readl(host, DSPS_REG); in NCR_700_intr()
1524 dsp = NCR_700_readl(host, DSP_REG); in NCR_700_intr()
1527 host->host_no, istat, sstat0, dstat, in NCR_700_intr()
1528 (dsp - (__u32)(hostdata->pScript))/4, in NCR_700_intr()
1532 pun = SCp->device->id; in NCR_700_intr()
1533 lun = SCp->device->lun; in NCR_700_intr()
1540 hostdata->state = NCR_700_HOST_BUSY; in NCR_700_intr()
1542 printk(KERN_ERR "scsi%d: Bus Reset detected, executing command %p, slot %p, dsp %08x[%04x]\n", in NCR_700_intr()
1543 … host->host_no, SCp, SCp == NULL ? NULL : SCp->host_scribble, dsp, dsp - hostdata->pScript); in NCR_700_intr()
1545 scsi_report_bus_reset(host, 0); in NCR_700_intr()
1548 __shost_for_each_device(SDp, host) in NCR_700_intr()
1555 &hostdata->slots[i]; in NCR_700_intr()
1557 if(slot->state == NCR_700_SLOT_FREE) in NCR_700_intr()
1560 SCp = slot->cmnd; in NCR_700_intr()
1561 printk(KERN_ERR " failing command because of reset, slot %p, cmnd %p\n", in NCR_700_intr()
1564 SCp->host_scribble = NULL; in NCR_700_intr()
1565 NCR_700_set_depth(SCp->device, 0); in NCR_700_intr()
1567 * rely on mid-layer guarantees that in NCR_700_intr()
1569 * command again otherwise we'll in NCR_700_intr()
1571 * hostdata->state_lock */ in NCR_700_intr()
1572 SCp->result = DID_RESET << 16; in NCR_700_intr()
1576 NCR_700_chip_setup(host); in NCR_700_intr()
1578 hostdata->state = NCR_700_HOST_FREE; in NCR_700_intr()
1579 hostdata->cmd = NULL; in NCR_700_intr()
1581 if(hostdata->eh_complete != NULL) in NCR_700_intr()
1582 complete(hostdata->eh_complete); in NCR_700_intr()
1586 host->host_no, pun, lun)); in NCR_700_intr()
1590 (struct NCR_700_command_slot *)SCp->host_scribble; in NCR_700_intr()
1592 if(dsp == Ent_SendMessage + 8 + hostdata->pScript) { in NCR_700_intr()
1596 __u32 temp = NCR_700_readl(host, TEMP_REG); in NCR_700_intr()
1597 …nt count = (hostdata->script[Ent_SendMessage/4] & 0xffffff) - ((NCR_700_readl(host, DBC_REG) & 0xf… in NCR_700_intr()
1598 … %p[%04x], phase %s\n", host->host_no, pun, lun, count, (void *)temp, temp - hostdata->pScript, sb… in NCR_700_intr()
1600 resume_offset = hostdata->pScript + Ent_SendMessagePhaseMismatch; in NCR_700_intr()
1601 } else if (slot && dsp >= to32bit(&slot->pSG[0].ins) && in NCR_700_intr()
1602 dsp <= to32bit(&slot->pSG[NCR_700_SG_SEGMENTS].ins)) { in NCR_700_intr()
1603 int data_transfer = NCR_700_readl(host, DBC_REG) & 0xffffff; in NCR_700_intr()
1604 int SGcount = (dsp - to32bit(&slot->pSG[0].ins))/sizeof(struct NCR_700_SG_List); in NCR_700_intr()
1605 int residual = NCR_700_data_residual(host); in NCR_700_intr()
1608 __u32 naddr = NCR_700_readl(host, DNAD_REG); in NCR_700_intr()
1610 printk("scsi%d: (%d:%d) Expected phase mismatch in slot->SG[%d], transferred 0x%x\n", in NCR_700_intr()
1611 host->host_no, pun, lun, in NCR_700_intr()
1615 … printk("scsi%d: (%d:%d) Expected phase mismatch in slot->SG[%d], transferred 0x%x, residual %d\n", in NCR_700_intr()
1616 host->host_no, pun, lun, in NCR_700_intr()
1626 SGcount--; in NCR_700_intr()
1628 count = (bS_to_cpu(slot->SG[SGcount].ins) & 0x00ffffff); in NCR_700_intr()
1629 DEBUG(("DATA TRANSFER MISMATCH, count = %d, transferred %d\n", count, count-data_transfer)); in NCR_700_intr()
1630 slot->SG[SGcount].ins &= bS_to_host(0xff000000); in NCR_700_intr()
1631 slot->SG[SGcount].ins |= bS_to_host(data_transfer); in NCR_700_intr()
1632 pAddr = bS_to_cpu(slot->SG[SGcount].pAddr); in NCR_700_intr()
1633 pAddr += (count - data_transfer); in NCR_700_intr()
1636 …transfer mismatch pAddr=%lx, naddr=%lx, data_transfer=%d, residual=%d\n", host->host_no, pun, lun,… in NCR_700_intr()
1639 slot->SG[SGcount].pAddr = bS_to_host(pAddr); in NCR_700_intr()
1643 slot->SG[i].ins = bS_to_host(SCRIPT_NOP); in NCR_700_intr()
1644 slot->SG[i].pAddr = 0; in NCR_700_intr()
1646 dma_sync_to_dev(hostdata, slot->SG, sizeof(slot->SG)); in NCR_700_intr()
1648 * the command phase */ in NCR_700_intr()
1649 resume_offset = hostdata->pScript + Ent_MsgInDuringData; in NCR_700_intr()
1651 NCR_700_flush_fifo(host); in NCR_700_intr()
1653 __u8 sbcl = NCR_700_readb(host, SBCL_REG); in NCR_700_intr()
1655 host->host_no, pun, lun, dsp - hostdata->pScript, sbcl_to_string(sbcl)); in NCR_700_intr()
1656 NCR_700_internal_bus_reset(host); in NCR_700_intr()
1661 host->host_no, pun, lun); in NCR_700_intr()
1665 host->host_no, pun, lun); in NCR_700_intr()
1669 host->host_no, pun, lun)); in NCR_700_intr()
1670 resume_offset = process_script_interrupt(dsps, dsp, SCp, host, hostdata); in NCR_700_intr()
1674 host->host_no, pun, lun, in NCR_700_intr()
1675 dsp, dsp - hostdata->pScript); in NCR_700_intr()
1679 host->host_no, pun, lun, dstat); in NCR_700_intr()
1691 * interrupts to complete a command that in NCR_700_intr()
1695 * command. If we guess the reselected in NCR_700_intr()
1696 * command here and prepare it, we only need in NCR_700_intr()
1699 * overhead is much greater than the command in NCR_700_intr()
1702 * only have one outstanding command on a in NCR_700_intr()
1705 resume_offset = process_selection(host, dsp); in NCR_700_intr()
1712 if(hostdata->state != NCR_700_HOST_BUSY) { in NCR_700_intr()
1713 printk(KERN_ERR "scsi%d: Driver error: resume at 0x%08x [0x%04x] with non busy host!\n", in NCR_700_intr()
1714 host->host_no, resume_offset, resume_offset - hostdata->pScript); in NCR_700_intr()
1715 hostdata->state = NCR_700_HOST_BUSY; in NCR_700_intr()
1719 NCR_700_clear_fifo(host); in NCR_700_intr()
1720 NCR_700_writel(resume_offset, host, DSP_REG); in NCR_700_intr()
1722 /* There is probably a technical no-no about this: If we're a in NCR_700_intr()
1725 * check our queued commands here---of course, there shouldn't in NCR_700_intr()
1727 if(hostdata->state == NCR_700_HOST_FREE) { in NCR_700_intr()
1733 int j = (i + hostdata->saved_slot_position) in NCR_700_intr()
1736 if(hostdata->slots[j].state != NCR_700_SLOT_QUEUED) in NCR_700_intr()
1738 if(NCR_700_start_command(hostdata->slots[j].cmnd)) { in NCR_700_intr()
1739 DEBUG(("scsi%d: Issuing saved command slot %p, cmd %p\t\n", in NCR_700_intr()
1740 host->host_no, &hostdata->slots[j], in NCR_700_intr()
1741 hostdata->slots[j].cmnd)); in NCR_700_intr()
1742 hostdata->saved_slot_position = j + 1; in NCR_700_intr()
1749 spin_unlock_irqrestore(host->host_lock, flags); in NCR_700_intr()
1756 (struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0]; in NCR_700_queuecommand_lck()
1760 if(hostdata->command_slot_count >= NCR_700_COMMAND_SLOTS_PER_HOST) { in NCR_700_queuecommand_lck()
1763 …printk(KERN_WARNING "scsi%d: Command depth has gone over queue depth\n", SCp->device->host->host_n… in NCR_700_queuecommand_lck()
1769 * - The tag negotiated bitmap is clear in NCR_700_queuecommand_lck()
1770 * - The blk layer sent and untagged command in NCR_700_queuecommand_lck()
1772 if(NCR_700_get_depth(SCp->device) != 0 in NCR_700_queuecommand_lck()
1773 && (!(hostdata->tag_negotiated & (1<<scmd_id(SCp))) in NCR_700_queuecommand_lck()
1774 || !(SCp->flags & SCMD_TAGGED))) { in NCR_700_queuecommand_lck()
1776 NCR_700_get_depth(SCp->device)); in NCR_700_queuecommand_lck()
1779 if(NCR_700_get_depth(SCp->device) >= SCp->device->queue_depth) { in NCR_700_queuecommand_lck()
1781 NCR_700_get_depth(SCp->device)); in NCR_700_queuecommand_lck()
1784 NCR_700_set_depth(SCp->device, NCR_700_get_depth(SCp->device) + 1); in NCR_700_queuecommand_lck()
1786 /* begin the command here */ in NCR_700_queuecommand_lck()
1791 slot->cmnd = SCp; in NCR_700_queuecommand_lck()
1793 SCp->host_scribble = (unsigned char *)slot; in NCR_700_queuecommand_lck()
1796 printk("53c700: scsi%d, command ", SCp->device->host->host_no); in NCR_700_queuecommand_lck()
1799 if ((SCp->flags & SCMD_TAGGED) in NCR_700_queuecommand_lck()
1800 && (hostdata->tag_negotiated &(1<<scmd_id(SCp))) == 0 in NCR_700_queuecommand_lck()
1801 && NCR_700_get_tag_neg_state(SCp->device) == NCR_700_START_TAG_NEGOTIATION) { in NCR_700_queuecommand_lck()
1802 scmd_printk(KERN_ERR, SCp, "Enabling Tag Command Queuing\n"); in NCR_700_queuecommand_lck()
1803 hostdata->tag_negotiated |= (1<<scmd_id(SCp)); in NCR_700_queuecommand_lck()
1804 NCR_700_set_tag_neg_state(SCp->device, NCR_700_DURING_TAG_NEGOTIATION); in NCR_700_queuecommand_lck()
1807 /* here we may have to process an untagged command. The gate in NCR_700_queuecommand_lck()
1813 if (!(SCp->flags & SCMD_TAGGED) in NCR_700_queuecommand_lck()
1814 && (hostdata->tag_negotiated &(1<<scmd_id(SCp)))) { in NCR_700_queuecommand_lck()
1815 scmd_printk(KERN_INFO, SCp, "Disabling Tag Command Queuing\n"); in NCR_700_queuecommand_lck()
1816 hostdata->tag_negotiated &= ~(1<<scmd_id(SCp)); in NCR_700_queuecommand_lck()
1819 if ((hostdata->tag_negotiated & (1<<scmd_id(SCp))) && in NCR_700_queuecommand_lck()
1820 SCp->device->simple_tags) { in NCR_700_queuecommand_lck()
1821 slot->tag = scsi_cmd_to_rq(SCp)->tag; in NCR_700_queuecommand_lck()
1823 slot->tag, slot); in NCR_700_queuecommand_lck()
1825 struct NCR_700_Device_Parameters *p = SCp->device->hostdata; in NCR_700_queuecommand_lck()
1827 slot->tag = SCSI_NO_TAG; in NCR_700_queuecommand_lck()
1828 /* save current command for reselection */ in NCR_700_queuecommand_lck()
1829 p->current_cmnd = SCp; in NCR_700_queuecommand_lck()
1831 /* sanity check: some of the commands generated by the mid-layer in NCR_700_queuecommand_lck()
1834 SCp->sc_data_direction != DMA_NONE) { in NCR_700_queuecommand_lck()
1836 printk("53c700: Command"); in NCR_700_queuecommand_lck()
1838 printk("Has wrong data direction %d\n", SCp->sc_data_direction); in NCR_700_queuecommand_lck()
1840 SCp->sc_data_direction = DMA_NONE; in NCR_700_queuecommand_lck()
1843 switch (SCp->cmnd[0]) { in NCR_700_queuecommand_lck()
1846 SCp->cmnd[6] = 0; in NCR_700_queuecommand_lck()
1849 /* OK, get it from the command */ in NCR_700_queuecommand_lck()
1850 switch(SCp->sc_data_direction) { in NCR_700_queuecommand_lck()
1853 printk(KERN_ERR "53c700: Unknown command for data direction "); in NCR_700_queuecommand_lck()
1885 slot->SG[i].ins = bS_to_host(move_ins | count); in NCR_700_queuecommand_lck()
1887 i, count, slot->SG[i].ins, (unsigned long)vPtr)); in NCR_700_queuecommand_lck()
1888 slot->SG[i].pAddr = bS_to_host(vPtr); in NCR_700_queuecommand_lck()
1890 slot->SG[i].ins = bS_to_host(SCRIPT_RETURN); in NCR_700_queuecommand_lck()
1891 slot->SG[i].pAddr = 0; in NCR_700_queuecommand_lck()
1892 dma_sync_to_dev(hostdata, slot->SG, sizeof(slot->SG)); in NCR_700_queuecommand_lck()
1894 (&slot->pSG[i].ins), in NCR_700_queuecommand_lck()
1895 slot->SG[i].ins)); in NCR_700_queuecommand_lck()
1897 slot->resume_offset = 0; in NCR_700_queuecommand_lck()
1898 slot->pCmd = dma_map_single(hostdata->dev, SCp->cmnd, in NCR_700_queuecommand_lck()
1911 scmd_printk(KERN_INFO, SCp, "abort command\n"); in DEF_SCSI_QCMD()
1913 slot = (struct NCR_700_command_slot *)SCp->host_scribble; in DEF_SCSI_QCMD()
1916 /* no outstanding command to abort */ in DEF_SCSI_QCMD()
1918 if(SCp->cmnd[0] == TEST_UNIT_READY) { in DEF_SCSI_QCMD()
1925 * this would leave us with an outstanding command in DEF_SCSI_QCMD()
1929 NCR_700_internal_bus_reset(SCp->device->host); in DEF_SCSI_QCMD()
1941 (struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0]; in NCR_700_host_reset()
1944 "New error handler wants HOST reset, cmd %p\n\t", SCp); in NCR_700_host_reset()
1950 spin_lock_irq(SCp->device->host->host_lock); in NCR_700_host_reset()
1951 while (hostdata->eh_complete != NULL) { in NCR_700_host_reset()
1952 spin_unlock_irq(SCp->device->host->host_lock); in NCR_700_host_reset()
1954 spin_lock_irq(SCp->device->host->host_lock); in NCR_700_host_reset()
1957 hostdata->eh_complete = &complete; in NCR_700_host_reset()
1958 NCR_700_internal_bus_reset(SCp->device->host); in NCR_700_host_reset()
1959 NCR_700_chip_reset(SCp->device->host); in NCR_700_host_reset()
1961 spin_unlock_irq(SCp->device->host->host_lock); in NCR_700_host_reset()
1963 spin_lock_irq(SCp->device->host->host_lock); in NCR_700_host_reset()
1965 hostdata->eh_complete = NULL; in NCR_700_host_reset()
1967 if(hostdata->fast) in NCR_700_host_reset()
1968 spi_schedule_dv_device(SCp->device); in NCR_700_host_reset()
1970 spin_unlock_irq(SCp->device->host->host_lock); in NCR_700_host_reset()
1977 struct Scsi_Host *SHp = dev_to_shost(STp->dev.parent); in NCR_700_set_period()
1979 (struct NCR_700_Host_Parameters *)SHp->hostdata[0]; in NCR_700_set_period()
1981 if(!hostdata->fast) in NCR_700_set_period()
1984 if(period < hostdata->min_period) in NCR_700_set_period()
1985 period = hostdata->min_period; in NCR_700_set_period()
1996 struct Scsi_Host *SHp = dev_to_shost(STp->dev.parent); in NCR_700_set_offset()
1998 (struct NCR_700_Host_Parameters *)SHp->hostdata[0]; in NCR_700_set_offset()
1999 int max_offset = hostdata->chip710 in NCR_700_set_offset()
2002 if(!hostdata->fast) in NCR_700_set_offset()
2009 if(spi_offset(STp) == 0 && (spi_period(STp) < hostdata->min_period || in NCR_700_set_offset()
2011 spi_period(STp) = hostdata->min_period; in NCR_700_set_offset()
2022 SDp->hostdata = kzalloc(sizeof(struct NCR_700_Device_Parameters), in NCR_700_slave_alloc()
2025 if (!SDp->hostdata) in NCR_700_slave_alloc()
2026 return -ENOMEM; in NCR_700_slave_alloc()
2035 (struct NCR_700_Host_Parameters *)SDp->host->hostdata[0]; in NCR_700_slave_configure()
2038 if(SDp->tagged_supported) { in NCR_700_slave_configure()
2043 if(hostdata->fast) { in NCR_700_slave_configure()
2045 if (!spi_initial_dv(SDp->sdev_target)) in NCR_700_slave_configure()
2048 spi_offset(SDp->sdev_target) = 0; in NCR_700_slave_configure()
2049 spi_period(SDp->sdev_target) = 0; in NCR_700_slave_configure()
2057 kfree(SDp->hostdata); in NCR_700_slave_destroy()
2058 SDp->hostdata = NULL; in NCR_700_slave_destroy()
2107 return -ENODEV; in NCR_700_init()