384 lines
10 KiB
C
384 lines
10 KiB
C
/*
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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 <groudier@club-internet.fr>
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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 copy_mem_info(struct info_str *info, char *data, int len);
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static int copy_info(struct info_str *info, char *fmt, ...);
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static void ahd_dump_target_state(struct ahd_softc *ahd,
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struct info_str *info,
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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 info_str *info,
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struct scsi_device *sdev);
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static int ahd_proc_write_seeprom(struct ahd_softc *ahd,
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char *buffer, int length);
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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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/* 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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copy_mem_info(struct info_str *info, char *data, int len)
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{
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if (info->pos + len > info->offset + info->length)
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len = info->offset + info->length - info->pos;
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if (info->pos + len < info->offset) {
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info->pos += len;
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return;
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}
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if (info->pos < info->offset) {
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off_t partial;
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partial = info->offset - info->pos;
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data += partial;
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info->pos += partial;
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len -= partial;
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}
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if (len > 0) {
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memcpy(info->buffer, data, len);
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info->pos += len;
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info->buffer += len;
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}
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}
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static int
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copy_info(struct info_str *info, char *fmt, ...)
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{
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va_list args;
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char buf[256];
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int len;
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va_start(args, fmt);
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len = vsprintf(buf, fmt, args);
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va_end(args);
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copy_mem_info(info, buf, len);
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return (len);
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}
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static void
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ahd_format_transinfo(struct info_str *info, 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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copy_info(info, "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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copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000);
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else
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copy_info(info, "%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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copy_info(info, " (%d.%03dMHz", freq / 1000, freq % 1000);
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if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) {
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copy_info(info, " 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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copy_info(info, "%s", 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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copy_info(info, "%s", 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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copy_info(info, "%s",
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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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copy_info(info, "%s",
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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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copy_info(info, ", ");
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} else {
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copy_info(info, " (");
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}
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copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width));
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} else if (freq != 0) {
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copy_info(info, ")");
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}
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copy_info(info, "\n");
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}
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static void
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ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info,
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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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copy_info(info, "Target %d Negotiation Settings\n", target_id);
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copy_info(info, "\tUser: ");
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ahd_format_transinfo(info, &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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copy_info(info, "\tGoal: ");
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ahd_format_transinfo(info, &tinfo->goal);
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copy_info(info, "\tCurr: ");
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ahd_format_transinfo(info, &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(info, dev);
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}
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}
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static void
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ahd_dump_device_state(struct info_str *info, 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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copy_info(info, "\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, sdev->lun);
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copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued);
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copy_info(info, "\t\tCommands Active %d\n", dev->active);
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copy_info(info, "\t\tCommand Openings %d\n", dev->openings);
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copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags);
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copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
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}
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static int
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ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length)
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{
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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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printf("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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printf("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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printf("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 = malloc(sizeof(*ahd->seep_config),
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M_DEVBUF, M_NOWAIT);
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if (ahd->seep_config == NULL) {
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printf("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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printf("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_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
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off_t offset, int length, int inout)
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{
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struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
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struct info_str info;
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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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int retval;
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/* Has data been written to the file? */
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if (inout == TRUE) {
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retval = ahd_proc_write_seeprom(ahd, buffer, length);
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goto done;
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}
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if (start)
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*start = buffer;
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info.buffer = buffer;
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info.length = length;
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info.offset = offset;
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info.pos = 0;
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copy_info(&info, "Adaptec AIC79xx driver version: %s\n",
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AIC79XX_DRIVER_VERSION);
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copy_info(&info, "%s\n", ahd->description);
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ahd_controller_info(ahd, ahd_info);
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copy_info(&info, "%s\n", ahd_info);
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copy_info(&info, "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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copy_info(&info, "No Serial EEPROM\n");
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else {
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copy_info(&info, "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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copy_info(&info, "\n");
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}
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copy_info(&info, "0x%.4x ",
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((uint16_t*)ahd->seep_config)[i]);
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}
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copy_info(&info, "\n");
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}
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copy_info(&info, "\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, &info, ahd->our_id, 'A',
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/*target_id*/i);
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}
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retval = info.pos > info.offset ? info.pos - info.offset : 0;
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done:
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return (retval);
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}
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