diff options
Diffstat (limited to 'kernel/drivers/scsi/aic7xxx/aic7xxx_proc.c')
| -rw-r--r-- | kernel/drivers/scsi/aic7xxx/aic7xxx_proc.c | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/kernel/drivers/scsi/aic7xxx/aic7xxx_proc.c b/kernel/drivers/scsi/aic7xxx/aic7xxx_proc.c new file mode 100644 index 000000000..18459605d --- /dev/null +++ b/kernel/drivers/scsi/aic7xxx/aic7xxx_proc.c @@ -0,0 +1,342 @@ +/* + * 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/aic7xxx_proc.c#29 $ + */ +#include "aic7xxx_osm.h" +#include "aic7xxx_inline.h" +#include "aic7xxx_93cx6.h" + +static void ahc_dump_target_state(struct ahc_softc *ahc, + struct seq_file *m, + u_int our_id, char channel, + u_int target_id, u_int target_offset); +static void ahc_dump_device_state(struct seq_file *m, + struct scsi_device *dev); + +/* + * 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 +ahc_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 +ahc_format_transinfo(struct seq_file *m, struct ahc_transinfo *tinfo) +{ + u_int speed; + u_int freq; + u_int mb; + + speed = 3300; + freq = 0; + if (tinfo->offset != 0) { + freq = ahc_calc_syncsrate(tinfo->period); + speed = freq; + } + speed *= (0x01 << tinfo->width); + mb = speed / 1000; + if (mb > 0) + seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000); + else + seq_printf(m, "%dKB/s transfers", speed); + + if (freq != 0) { + seq_printf(m, " (%d.%03dMHz%s, offset %d", + freq / 1000, freq % 1000, + (tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 + ? " DT" : "", tinfo->offset); + } + + if (tinfo->width > 0) { + if (freq != 0) { + seq_puts(m, ", "); + } else { + seq_puts(m, " ("); + } + seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width)); + } else if (freq != 0) { + seq_putc(m, ')'); + } + seq_putc(m, '\n'); +} + +static void +ahc_dump_target_state(struct ahc_softc *ahc, struct seq_file *m, + u_int our_id, char channel, u_int target_id, + u_int target_offset) +{ + struct scsi_target *starget; + struct ahc_initiator_tinfo *tinfo; + struct ahc_tmode_tstate *tstate; + int lun; + + tinfo = ahc_fetch_transinfo(ahc, channel, our_id, + target_id, &tstate); + if ((ahc->features & AHC_TWIN) != 0) + seq_printf(m, "Channel %c ", channel); + seq_printf(m, "Target %d Negotiation Settings\n", target_id); + seq_puts(m, "\tUser: "); + ahc_format_transinfo(m, &tinfo->user); + starget = ahc->platform_data->starget[target_offset]; + if (!starget) + return; + + seq_puts(m, "\tGoal: "); + ahc_format_transinfo(m, &tinfo->goal); + seq_puts(m, "\tCurr: "); + ahc_format_transinfo(m, &tinfo->curr); + + for (lun = 0; lun < AHC_NUM_LUNS; lun++) { + struct scsi_device *sdev; + + sdev = scsi_device_lookup_by_target(starget, lun); + + if (sdev == NULL) + continue; + + ahc_dump_device_state(m, sdev); + } +} + +static void +ahc_dump_device_state(struct seq_file *m, struct scsi_device *sdev) +{ + struct ahc_linux_device *dev = scsi_transport_device_data(sdev); + + seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n", + sdev->sdev_target->channel + 'A', + sdev->sdev_target->id, (u8)sdev->lun); + + seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued); + seq_printf(m, "\t\tCommands Active %d\n", dev->active); + seq_printf(m, "\t\tCommand Openings %d\n", dev->openings); + seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags); + seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); +} + +int +ahc_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length) +{ + struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; + struct seeprom_descriptor sd; + int have_seeprom; + u_long s; + int paused; + int written; + + /* Default to failure. */ + written = -EINVAL; + ahc_lock(ahc, &s); + paused = ahc_is_paused(ahc); + if (!paused) + ahc_pause(ahc); + + if (length != sizeof(struct seeprom_config)) { + printk("ahc_proc_write_seeprom: incorrect buffer size\n"); + goto done; + } + + have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer); + if (have_seeprom == 0) { + printk("ahc_proc_write_seeprom: cksum verification failed\n"); + goto done; + } + + sd.sd_ahc = ahc; +#if AHC_PCI_CONFIG > 0 + if ((ahc->chip & AHC_PCI) != 0) { + sd.sd_control_offset = SEECTL; + sd.sd_status_offset = SEECTL; + sd.sd_dataout_offset = SEECTL; + if (ahc->flags & AHC_LARGE_SEEPROM) + sd.sd_chip = C56_66; + else + sd.sd_chip = C46; + sd.sd_MS = SEEMS; + sd.sd_RDY = SEERDY; + sd.sd_CS = SEECS; + sd.sd_CK = SEECK; + sd.sd_DO = SEEDO; + sd.sd_DI = SEEDI; + have_seeprom = ahc_acquire_seeprom(ahc, &sd); + } else +#endif + if ((ahc->chip & AHC_VL) != 0) { + sd.sd_control_offset = SEECTL_2840; + sd.sd_status_offset = STATUS_2840; + sd.sd_dataout_offset = STATUS_2840; + sd.sd_chip = C46; + sd.sd_MS = 0; + sd.sd_RDY = EEPROM_TF; + sd.sd_CS = CS_2840; + sd.sd_CK = CK_2840; + sd.sd_DO = DO_2840; + sd.sd_DI = DI_2840; + have_seeprom = TRUE; + } else { + printk("ahc_proc_write_seeprom: unsupported adapter type\n"); + goto done; + } + + if (!have_seeprom) { + printk("ahc_proc_write_seeprom: No Serial EEPROM\n"); + goto done; + } else { + u_int start_addr; + + if (ahc->seep_config == NULL) { + ahc->seep_config = kmalloc(sizeof(*ahc->seep_config), GFP_ATOMIC); + if (ahc->seep_config == NULL) { + printk("aic7xxx: Unable to allocate serial " + "eeprom buffer. Write failing\n"); + goto done; + } + } + printk("aic7xxx: Writing Serial EEPROM\n"); + start_addr = 32 * (ahc->channel - 'A'); + ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr, + sizeof(struct seeprom_config)/2); + ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config, + start_addr, sizeof(struct seeprom_config)/2); +#if AHC_PCI_CONFIG > 0 + if ((ahc->chip & AHC_VL) == 0) + ahc_release_seeprom(&sd); +#endif + written = length; + } + +done: + if (!paused) + ahc_unpause(ahc); + ahc_unlock(ahc, &s); + return (written); +} + +/* + * Return information to handle /proc support for the driver. + */ +int +ahc_linux_show_info(struct seq_file *m, struct Scsi_Host *shost) +{ + struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; + char ahc_info[256]; + u_int max_targ; + u_int i; + + seq_printf(m, "Adaptec AIC7xxx driver version: %s\n", + AIC7XXX_DRIVER_VERSION); + seq_printf(m, "%s\n", ahc->description); + ahc_controller_info(ahc, ahc_info); + seq_printf(m, "%s\n", ahc_info); + seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n", + ahc->scb_data->numscbs, AHC_NSEG); + + + if (ahc->seep_config == NULL) + seq_puts(m, "No Serial EEPROM\n"); + else { + seq_puts(m, "Serial EEPROM:\n"); + for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) { + if (((i % 8) == 0) && (i != 0)) { + seq_putc(m, '\n'); + } + seq_printf(m, "0x%.4x ", + ((uint16_t*)ahc->seep_config)[i]); + } + seq_putc(m, '\n'); + } + seq_putc(m, '\n'); + + max_targ = 16; + if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0) + max_targ = 8; + + for (i = 0; i < max_targ; i++) { + u_int our_id; + u_int target_id; + char channel; + + channel = 'A'; + our_id = ahc->our_id; + target_id = i; + if (i > 7 && (ahc->features & AHC_TWIN) != 0) { + channel = 'B'; + our_id = ahc->our_id_b; + target_id = i % 8; + } + + ahc_dump_target_state(ahc, m, our_id, + channel, target_id, i); + } + return 0; +} |