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316 lines
8.8 KiB
316 lines
8.8 KiB
/* |
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* Copyright (c) 2000-2001 Adaptec Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions, and the following disclaimer, |
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* without modification. |
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer |
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* substantially similar to the "NO WARRANTY" disclaimer below |
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* ("Disclaimer") and any redistribution must be conditioned upon |
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* including a substantially similar Disclaimer requirement for further |
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* binary redistribution. |
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* 3. Neither the names of the above-listed copyright holders nor the names |
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* of any contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* Alternatively, this software may be distributed under the terms of the |
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* GNU General Public License ("GPL") version 2 as published by the Free |
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* Software Foundation. |
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* |
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* NO WARRANTY |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGES. |
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* |
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* String handling code courtesy of Gerard Roudier's <[email protected]> |
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* sym driver. |
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* |
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* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_proc.c#19 $ |
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*/ |
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#include "aic79xx_osm.h" |
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#include "aic79xx_inline.h" |
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static void ahd_dump_target_state(struct ahd_softc *ahd, |
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struct seq_file *m, |
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u_int our_id, char channel, |
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u_int target_id); |
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static void ahd_dump_device_state(struct seq_file *m, |
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struct scsi_device *sdev); |
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/* |
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* Table of syncrates that don't follow the "divisible by 4" |
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* rule. This table will be expanded in future SCSI specs. |
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*/ |
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static const struct { |
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u_int period_factor; |
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u_int period; /* in 100ths of ns */ |
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} scsi_syncrates[] = { |
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{ 0x08, 625 }, /* FAST-160 */ |
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{ 0x09, 1250 }, /* FAST-80 */ |
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{ 0x0a, 2500 }, /* FAST-40 40MHz */ |
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{ 0x0b, 3030 }, /* FAST-40 33MHz */ |
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{ 0x0c, 5000 } /* FAST-20 */ |
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}; |
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/* |
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* Return the frequency in kHz corresponding to the given |
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* sync period factor. |
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*/ |
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static u_int |
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ahd_calc_syncsrate(u_int period_factor) |
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{ |
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int i; |
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|
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/* See if the period is in the "exception" table */ |
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for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) { |
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if (period_factor == scsi_syncrates[i].period_factor) { |
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/* Period in kHz */ |
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return (100000000 / scsi_syncrates[i].period); |
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} |
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} |
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/* |
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* Wasn't in the table, so use the standard |
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* 4 times conversion. |
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*/ |
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return (10000000 / (period_factor * 4 * 10)); |
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} |
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static void |
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ahd_format_transinfo(struct seq_file *m, struct ahd_transinfo *tinfo) |
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{ |
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u_int speed; |
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u_int freq; |
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u_int mb; |
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if (tinfo->period == AHD_PERIOD_UNKNOWN) { |
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seq_puts(m, "Renegotiation Pending\n"); |
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return; |
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} |
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speed = 3300; |
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freq = 0; |
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if (tinfo->offset != 0) { |
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freq = ahd_calc_syncsrate(tinfo->period); |
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speed = freq; |
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} |
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speed *= (0x01 << tinfo->width); |
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mb = speed / 1000; |
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if (mb > 0) |
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seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000); |
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else |
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seq_printf(m, "%dKB/s transfers", speed); |
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if (freq != 0) { |
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int printed_options; |
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printed_options = 0; |
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seq_printf(m, " (%d.%03dMHz", freq / 1000, freq % 1000); |
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if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) { |
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seq_puts(m, " RDSTRM"); |
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printed_options++; |
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} |
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if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) { |
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seq_puts(m, printed_options ? "|DT" : " DT"); |
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printed_options++; |
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} |
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if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { |
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seq_puts(m, printed_options ? "|IU" : " IU"); |
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printed_options++; |
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} |
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if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) { |
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seq_puts(m, printed_options ? "|RTI" : " RTI"); |
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printed_options++; |
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} |
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if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) { |
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seq_puts(m, printed_options ? "|QAS" : " QAS"); |
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printed_options++; |
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} |
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} |
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if (tinfo->width > 0) { |
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if (freq != 0) { |
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seq_puts(m, ", "); |
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} else { |
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seq_puts(m, " ("); |
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} |
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seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width)); |
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} else if (freq != 0) { |
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seq_putc(m, ')'); |
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} |
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seq_putc(m, '\n'); |
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} |
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static void |
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ahd_dump_target_state(struct ahd_softc *ahd, struct seq_file *m, |
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u_int our_id, char channel, u_int target_id) |
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{ |
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struct scsi_target *starget; |
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struct ahd_initiator_tinfo *tinfo; |
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struct ahd_tmode_tstate *tstate; |
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int lun; |
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tinfo = ahd_fetch_transinfo(ahd, channel, our_id, |
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target_id, &tstate); |
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seq_printf(m, "Target %d Negotiation Settings\n", target_id); |
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seq_puts(m, "\tUser: "); |
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ahd_format_transinfo(m, &tinfo->user); |
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starget = ahd->platform_data->starget[target_id]; |
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if (starget == NULL) |
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return; |
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seq_puts(m, "\tGoal: "); |
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ahd_format_transinfo(m, &tinfo->goal); |
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seq_puts(m, "\tCurr: "); |
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ahd_format_transinfo(m, &tinfo->curr); |
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for (lun = 0; lun < AHD_NUM_LUNS; lun++) { |
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struct scsi_device *dev; |
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dev = scsi_device_lookup_by_target(starget, lun); |
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if (dev == NULL) |
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continue; |
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ahd_dump_device_state(m, dev); |
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} |
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} |
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static void |
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ahd_dump_device_state(struct seq_file *m, struct scsi_device *sdev) |
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{ |
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struct ahd_linux_device *dev = scsi_transport_device_data(sdev); |
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seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n", |
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sdev->sdev_target->channel + 'A', |
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sdev->sdev_target->id, (u8)sdev->lun); |
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seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued); |
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seq_printf(m, "\t\tCommands Active %d\n", dev->active); |
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seq_printf(m, "\t\tCommand Openings %d\n", dev->openings); |
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seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags); |
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seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); |
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} |
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int |
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ahd_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length) |
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{ |
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struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; |
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ahd_mode_state saved_modes; |
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int have_seeprom; |
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u_long s; |
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int paused; |
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int written; |
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/* Default to failure. */ |
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written = -EINVAL; |
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ahd_lock(ahd, &s); |
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paused = ahd_is_paused(ahd); |
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if (!paused) |
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ahd_pause(ahd); |
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saved_modes = ahd_save_modes(ahd); |
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ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
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if (length != sizeof(struct seeprom_config)) { |
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printk("ahd_proc_write_seeprom: incorrect buffer size\n"); |
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goto done; |
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} |
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have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer); |
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if (have_seeprom == 0) { |
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printk("ahd_proc_write_seeprom: cksum verification failed\n"); |
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goto done; |
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} |
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have_seeprom = ahd_acquire_seeprom(ahd); |
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if (!have_seeprom) { |
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printk("ahd_proc_write_seeprom: No Serial EEPROM\n"); |
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goto done; |
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} else { |
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u_int start_addr; |
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if (ahd->seep_config == NULL) { |
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ahd->seep_config = kmalloc(sizeof(*ahd->seep_config), |
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GFP_ATOMIC); |
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if (ahd->seep_config == NULL) { |
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printk("aic79xx: Unable to allocate serial " |
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"eeprom buffer. Write failing\n"); |
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goto done; |
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} |
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} |
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printk("aic79xx: Writing Serial EEPROM\n"); |
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start_addr = 32 * (ahd->channel - 'A'); |
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ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr, |
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sizeof(struct seeprom_config)/2); |
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ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config, |
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start_addr, sizeof(struct seeprom_config)/2, |
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/*ByteStream*/FALSE); |
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ahd_release_seeprom(ahd); |
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written = length; |
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} |
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done: |
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ahd_restore_modes(ahd, saved_modes); |
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if (!paused) |
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ahd_unpause(ahd); |
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ahd_unlock(ahd, &s); |
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return (written); |
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} |
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/* |
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* Return information to handle /proc support for the driver. |
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*/ |
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int |
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ahd_linux_show_info(struct seq_file *m, struct Scsi_Host *shost) |
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{ |
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struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; |
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char ahd_info[256]; |
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u_int max_targ; |
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u_int i; |
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seq_printf(m, "Adaptec AIC79xx driver version: %s\n", |
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AIC79XX_DRIVER_VERSION); |
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seq_printf(m, "%s\n", ahd->description); |
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ahd_controller_info(ahd, ahd_info); |
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seq_printf(m, "%s\n", ahd_info); |
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seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n", |
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ahd->scb_data.numscbs, AHD_NSEG); |
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max_targ = 16; |
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if (ahd->seep_config == NULL) |
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seq_puts(m, "No Serial EEPROM\n"); |
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else { |
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seq_puts(m, "Serial EEPROM:\n"); |
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for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) { |
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if (((i % 8) == 0) && (i != 0)) { |
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seq_putc(m, '\n'); |
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} |
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seq_printf(m, "0x%.4x ", |
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((uint16_t*)ahd->seep_config)[i]); |
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} |
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seq_putc(m, '\n'); |
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} |
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seq_putc(m, '\n'); |
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if ((ahd->features & AHD_WIDE) == 0) |
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max_targ = 8; |
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for (i = 0; i < max_targ; i++) { |
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ahd_dump_target_state(ahd, m, ahd->our_id, 'A', |
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/*target_id*/i); |
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} |
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return 0; |
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}
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