b1abb4d67f
Since the aic driver is now taught to speak in terms of the generic linux devices, we can now also dispense with the transport class get routines (since we update the parameters when the driver sees they change) and also plumb it into the spi transport transfer agreement reporting infrastructure. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
378 lines
10 KiB
C
378 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/aic7xxx_proc.c#29 $
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*/
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#include "aic7xxx_osm.h"
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#include "aic7xxx_inline.h"
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#include "aic7xxx_93cx6.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 ahc_dump_target_state(struct ahc_softc *ahc,
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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, u_int target_offset);
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static void ahc_dump_device_state(struct info_str *info,
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struct scsi_device *dev);
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static int ahc_proc_write_seeprom(struct ahc_softc *ahc,
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char *buffer, int length);
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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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void
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ahc_format_transinfo(struct info_str *info, struct ahc_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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speed = 3300;
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freq = 0;
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if (tinfo->offset != 0) {
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freq = aic_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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copy_info(info, " (%d.%03dMHz%s, offset %d",
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freq / 1000, freq % 1000,
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(tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0
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? " DT" : "", tinfo->offset);
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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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ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info,
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u_int our_id, char channel, u_int target_id,
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u_int target_offset)
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{
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struct ahc_linux_target *targ;
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struct scsi_target *starget;
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struct ahc_initiator_tinfo *tinfo;
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struct ahc_tmode_tstate *tstate;
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int lun;
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tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
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target_id, &tstate);
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if ((ahc->features & AHC_TWIN) != 0)
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copy_info(info, "Channel %c ", channel);
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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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ahc_format_transinfo(info, &tinfo->user);
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starget = ahc->platform_data->starget[target_offset];
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targ = scsi_transport_target_data(starget);
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if (targ == NULL)
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return;
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copy_info(info, "\tGoal: ");
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ahc_format_transinfo(info, &tinfo->goal);
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copy_info(info, "\tCurr: ");
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ahc_format_transinfo(info, &tinfo->curr);
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for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
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struct scsi_device *sdev;
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sdev = targ->sdev[lun];
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if (sdev == NULL)
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continue;
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ahc_dump_device_state(info, sdev);
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}
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}
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static void
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ahc_dump_device_state(struct info_str *info, struct scsi_device *sdev)
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{
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struct ahc_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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ahc_proc_write_seeprom(struct ahc_softc *ahc, char *buffer, int length)
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{
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struct seeprom_descriptor sd;
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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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ahc_lock(ahc, &s);
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paused = ahc_is_paused(ahc);
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if (!paused)
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ahc_pause(ahc);
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if (length != sizeof(struct seeprom_config)) {
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printf("ahc_proc_write_seeprom: incorrect buffer size\n");
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goto done;
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}
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have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer);
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if (have_seeprom == 0) {
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printf("ahc_proc_write_seeprom: cksum verification failed\n");
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goto done;
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}
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sd.sd_ahc = ahc;
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#if AHC_PCI_CONFIG > 0
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if ((ahc->chip & AHC_PCI) != 0) {
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sd.sd_control_offset = SEECTL;
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sd.sd_status_offset = SEECTL;
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sd.sd_dataout_offset = SEECTL;
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if (ahc->flags & AHC_LARGE_SEEPROM)
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sd.sd_chip = C56_66;
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else
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sd.sd_chip = C46;
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sd.sd_MS = SEEMS;
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sd.sd_RDY = SEERDY;
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sd.sd_CS = SEECS;
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sd.sd_CK = SEECK;
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sd.sd_DO = SEEDO;
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sd.sd_DI = SEEDI;
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have_seeprom = ahc_acquire_seeprom(ahc, &sd);
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} else
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#endif
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if ((ahc->chip & AHC_VL) != 0) {
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sd.sd_control_offset = SEECTL_2840;
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sd.sd_status_offset = STATUS_2840;
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sd.sd_dataout_offset = STATUS_2840;
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sd.sd_chip = C46;
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sd.sd_MS = 0;
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sd.sd_RDY = EEPROM_TF;
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sd.sd_CS = CS_2840;
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sd.sd_CK = CK_2840;
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sd.sd_DO = DO_2840;
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sd.sd_DI = DI_2840;
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have_seeprom = TRUE;
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} else {
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printf("ahc_proc_write_seeprom: unsupported adapter type\n");
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goto done;
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}
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if (!have_seeprom) {
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printf("ahc_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 (ahc->seep_config == NULL) {
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ahc->seep_config = malloc(sizeof(*ahc->seep_config),
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M_DEVBUF, M_NOWAIT);
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if (ahc->seep_config == NULL) {
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printf("aic7xxx: 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("aic7xxx: Writing Serial EEPROM\n");
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start_addr = 32 * (ahc->channel - 'A');
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ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr,
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sizeof(struct seeprom_config)/2);
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ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config,
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start_addr, sizeof(struct seeprom_config)/2);
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#if AHC_PCI_CONFIG > 0
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if ((ahc->chip & AHC_VL) == 0)
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ahc_release_seeprom(&sd);
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#endif
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written = length;
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}
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done:
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if (!paused)
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ahc_unpause(ahc);
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ahc_unlock(ahc, &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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ahc_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 ahc_softc *ahc;
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struct info_str info;
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char ahc_info[256];
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u_long s;
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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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retval = -EINVAL;
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ahc_list_lock(&s);
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ahc = ahc_find_softc(*(struct ahc_softc **)shost->hostdata);
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if (ahc == NULL)
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goto done;
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/* Has data been written to the file? */
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if (inout == TRUE) {
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retval = ahc_proc_write_seeprom(ahc, 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 AIC7xxx driver version: %s\n",
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AIC7XXX_DRIVER_VERSION);
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copy_info(&info, "%s\n", ahc->description);
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ahc_controller_info(ahc, ahc_info);
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copy_info(&info, "%s\n", ahc_info);
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copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n",
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ahc->scb_data->numscbs, AHC_NSEG);
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if (ahc->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(*ahc->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*)ahc->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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max_targ = 15;
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if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0)
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max_targ = 7;
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for (i = 0; i <= max_targ; i++) {
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u_int our_id;
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u_int target_id;
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char channel;
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channel = 'A';
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our_id = ahc->our_id;
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target_id = i;
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if (i > 7 && (ahc->features & AHC_TWIN) != 0) {
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channel = 'B';
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our_id = ahc->our_id_b;
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target_id = i % 8;
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}
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ahc_dump_target_state(ahc, &info, our_id,
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channel, 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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ahc_list_unlock(&s);
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return (retval);
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}
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