--- /dev/null
+/*
+ * 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;
+}
Code Review / kvmfornfv.git / blobdiff