/* * Copyright (c) 2000-2001 Adaptec Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. * * String handling code courtesy of Gerard Roudier's <groudier@club-internet.fr> * sym driver. * * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_proc.c#19 $ */ #include "aic79xx_osm.h" #include "aic79xx_inline.h" static void copy_mem_info(struct info_str *info, char *data, int len); static int copy_info(struct info_str *info, char *fmt, ...); static void ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info, u_int our_id, char channel, u_int target_id); static void ahd_dump_device_state(struct info_str *info, struct scsi_device *sdev); static int ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length); /* * Table of syncrates that don't follow the "divisible by 4" * rule. This table will be expanded in future SCSI specs. */ static const struct { u_int period_factor; u_int period; /* in 100ths of ns */ } scsi_syncrates[] = { { 0x08, 625 }, /* FAST-160 */ { 0x09, 1250 }, /* FAST-80 */ { 0x0a, 2500 }, /* FAST-40 40MHz */ { 0x0b, 3030 }, /* FAST-40 33MHz */ { 0x0c, 5000 } /* FAST-20 */ }; /* * Return the frequency in kHz corresponding to the given * sync period factor. */ static u_int ahd_calc_syncsrate(u_int period_factor) { int i; /* See if the period is in the "exception" table */ for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) { if (period_factor == scsi_syncrates[i].period_factor) { /* Period in kHz */ return (100000000 / scsi_syncrates[i].period); } } /* * Wasn't in the table, so use the standard * 4 times conversion. */ return (10000000 / (period_factor * 4 * 10)); } static void copy_mem_info(struct info_str *info, char *data, int len) { if (info->pos + len > info->offset + info->length) len = info->offset + info->length - info->pos; if (info->pos + len < info->offset) { info->pos += len; return; } if (info->pos < info->offset) { off_t partial; partial = info->offset - info->pos; data += partial; info->pos += partial; len -= partial; } if (len > 0) { memcpy(info->buffer, data, len); info->pos += len; info->buffer += len; } } static int copy_info(struct info_str *info, char *fmt, ...) { va_list args; char buf[256]; int len; va_start(args, fmt); len = vsprintf(buf, fmt, args); va_end(args); copy_mem_info(info, buf, len); return (len); } static void ahd_format_transinfo(struct info_str *info, struct ahd_transinfo *tinfo) { u_int speed; u_int freq; u_int mb; if (tinfo->period == AHD_PERIOD_UNKNOWN) { copy_info(info, "Renegotiation Pending\n"); return; } speed = 3300; freq = 0; if (tinfo->offset != 0) { freq = ahd_calc_syncsrate(tinfo->period); speed = freq; } speed *= (0x01 << tinfo->width); mb = speed / 1000; if (mb > 0) copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000); else copy_info(info, "%dKB/s transfers", speed); if (freq != 0) { int printed_options; printed_options = 0; copy_info(info, " (%d.%03dMHz", freq / 1000, freq % 1000); if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) { copy_info(info, " RDSTRM"); printed_options++; } if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) { copy_info(info, "%s", printed_options ? "|DT" : " DT"); printed_options++; } if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { copy_info(info, "%s", printed_options ? "|IU" : " IU"); printed_options++; } if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) { copy_info(info, "%s", printed_options ? "|RTI" : " RTI"); printed_options++; } if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) { copy_info(info, "%s", printed_options ? "|QAS" : " QAS"); printed_options++; } } if (tinfo->width > 0) { if (freq != 0) { copy_info(info, ", "); } else { copy_info(info, " ("); } copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width)); } else if (freq != 0) { copy_info(info, ")"); } copy_info(info, "\n"); } static void ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info, u_int our_id, char channel, u_int target_id) { struct scsi_target *starget; struct ahd_initiator_tinfo *tinfo; struct ahd_tmode_tstate *tstate; int lun; tinfo = ahd_fetch_transinfo(ahd, channel, our_id, target_id, &tstate); copy_info(info, "Target %d Negotiation Settings\n", target_id); copy_info(info, "\tUser: "); ahd_format_transinfo(info, &tinfo->user); starget = ahd->platform_data->starget[target_id]; if (starget == NULL) return; copy_info(info, "\tGoal: "); ahd_format_transinfo(info, &tinfo->goal); copy_info(info, "\tCurr: "); ahd_format_transinfo(info, &tinfo->curr); for (lun = 0; lun < AHD_NUM_LUNS; lun++) { struct scsi_device *dev; dev = scsi_device_lookup_by_target(starget, lun); if (dev == NULL) continue; ahd_dump_device_state(info, dev); } } static void ahd_dump_device_state(struct info_str *info, struct scsi_device *sdev) { struct ahd_linux_device *dev = scsi_transport_device_data(sdev); copy_info(info, "\tChannel %c Target %d Lun %d Settings\n", sdev->sdev_target->channel + 'A', sdev->sdev_target->id, sdev->lun); copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued); copy_info(info, "\t\tCommands Active %d\n", dev->active); copy_info(info, "\t\tCommand Openings %d\n", dev->openings); copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags); copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); } static int ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length) { ahd_mode_state saved_modes; int have_seeprom; u_long s; int paused; int written; /* Default to failure. */ written = -EINVAL; ahd_lock(ahd, &s); paused = ahd_is_paused(ahd); if (!paused) ahd_pause(ahd); saved_modes = ahd_save_modes(ahd); ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); if (length != sizeof(struct seeprom_config)) { printf("ahd_proc_write_seeprom: incorrect buffer size\n"); goto done; } have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer); if (have_seeprom == 0) { printf("ahd_proc_write_seeprom: cksum verification failed\n"); goto done; } have_seeprom = ahd_acquire_seeprom(ahd); if (!have_seeprom) { printf("ahd_proc_write_seeprom: No Serial EEPROM\n"); goto done; } else { u_int start_addr; if (ahd->seep_config == NULL) { ahd->seep_config = malloc(sizeof(*ahd->seep_config), M_DEVBUF, M_NOWAIT); if (ahd->seep_config == NULL) { printf("aic79xx: Unable to allocate serial " "eeprom buffer. Write failing\n"); goto done; } } printf("aic79xx: Writing Serial EEPROM\n"); start_addr = 32 * (ahd->channel - 'A'); ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr, sizeof(struct seeprom_config)/2); ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config, start_addr, sizeof(struct seeprom_config)/2, /*ByteStream*/FALSE); ahd_release_seeprom(ahd); written = length; } done: ahd_restore_modes(ahd, saved_modes); if (!paused) ahd_unpause(ahd); ahd_unlock(ahd, &s); return (written); } /* * Return information to handle /proc support for the driver. */ int ahd_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start, off_t offset, int length, int inout) { struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; struct info_str info; char ahd_info[256]; u_int max_targ; u_int i; int retval; /* Has data been written to the file? */ if (inout == TRUE) { retval = ahd_proc_write_seeprom(ahd, buffer, length); goto done; } if (start) *start = buffer; info.buffer = buffer; info.length = length; info.offset = offset; info.pos = 0; copy_info(&info, "Adaptec AIC79xx driver version: %s\n", AIC79XX_DRIVER_VERSION); copy_info(&info, "%s\n", ahd->description); ahd_controller_info(ahd, ahd_info); copy_info(&info, "%s\n", ahd_info); copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n", ahd->scb_data.numscbs, AHD_NSEG); max_targ = 16; if (ahd->seep_config == NULL) copy_info(&info, "No Serial EEPROM\n"); else { copy_info(&info, "Serial EEPROM:\n"); for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) { if (((i % 8) == 0) && (i != 0)) { copy_info(&info, "\n"); } copy_info(&info, "0x%.4x ", ((uint16_t*)ahd->seep_config)[i]); } copy_info(&info, "\n"); } copy_info(&info, "\n"); if ((ahd->features & AHD_WIDE) == 0) max_targ = 8; for (i = 0; i < max_targ; i++) { ahd_dump_target_state(ahd, &info, ahd->our_id, 'A', /*target_id*/i); } retval = info.pos > info.offset ? info.pos - info.offset : 0; done: return (retval); }