Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 316 insertions, 0 deletions

diff --git a/drivers/scsi/aic7xxx/aic79xx_proc.c b/drivers/scsi/aic7xxx/aic79xx_proc.c
new file mode 100644
index 000000000..746d0ca2a
--- /dev/null
+++ b/drivers/scsi/aic7xxx/aic79xx_proc.c
@@ -0,0 +1,316 @@
+/*
+ * 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/aic79xx_proc.c#19 $
+ */
+#include "aic79xx_osm.h"
+#include "aic79xx_inline.h"
+
+static void	ahd_dump_target_state(struct ahd_softc *ahd,
+				      struct seq_file *m,
+				      u_int our_id, char channel,
+				      u_int target_id);
+static void	ahd_dump_device_state(struct seq_file *m,
+				      struct scsi_device *sdev);
+
+/*
+ * 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
+ahd_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
+ahd_format_transinfo(struct seq_file *m, struct ahd_transinfo *tinfo)
+{
+	u_int speed;
+	u_int freq;
+	u_int mb;
+
+	if (tinfo->period == AHD_PERIOD_UNKNOWN) {
+		seq_puts(m, "Renegotiation Pending\n");
+		return;
+	}
+	speed = 3300;
+	freq = 0;
+	if (tinfo->offset != 0) {
+		freq = ahd_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) {
+		int	printed_options;
+
+		printed_options = 0;
+		seq_printf(m, " (%d.%03dMHz", freq / 1000, freq % 1000);
+		if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) {
+			seq_puts(m, " RDSTRM");
+			printed_options++;
+		}
+		if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) {
+			seq_puts(m, printed_options ? "|DT" : " DT");
+			printed_options++;
+		}
+		if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
+			seq_puts(m, printed_options ? "|IU" : " IU");
+			printed_options++;
+		}
+		if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) {
+			seq_puts(m, printed_options ? "|RTI" : " RTI");
+			printed_options++;
+		}
+		if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) {
+			seq_puts(m, printed_options ? "|QAS" : " QAS");
+			printed_options++;
+		}
+	}
+
+	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
+ahd_dump_target_state(struct ahd_softc *ahd, struct seq_file *m,
+		      u_int our_id, char channel, u_int target_id)
+{
+	struct  scsi_target *starget;
+	struct	ahd_initiator_tinfo *tinfo;
+	struct	ahd_tmode_tstate *tstate;
+	int	lun;
+
+	tinfo = ahd_fetch_transinfo(ahd, channel, our_id,
+				    target_id, &tstate);
+	seq_printf(m, "Target %d Negotiation Settings\n", target_id);
+	seq_puts(m, "\tUser: ");
+	ahd_format_transinfo(m, &tinfo->user);
+	starget = ahd->platform_data->starget[target_id];
+	if (starget == NULL)
+		return;
+
+	seq_puts(m, "\tGoal: ");
+	ahd_format_transinfo(m, &tinfo->goal);
+	seq_puts(m, "\tCurr: ");
+	ahd_format_transinfo(m, &tinfo->curr);
+
+	for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
+		struct scsi_device *dev;
+
+		dev = scsi_device_lookup_by_target(starget, lun);
+
+		if (dev == NULL)
+			continue;
+
+		ahd_dump_device_state(m, dev);
+	}
+}
+
+static void
+ahd_dump_device_state(struct seq_file *m, struct scsi_device *sdev)
+{
+	struct ahd_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
+ahd_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length)
+{
+	struct	ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
+	ahd_mode_state saved_modes;
+	int have_seeprom;
+	u_long s;
+	int paused;
+	int written;
+
+	/* Default to failure. */
+	written = -EINVAL;
+	ahd_lock(ahd, &s);
+	paused = ahd_is_paused(ahd);
+	if (!paused)
+		ahd_pause(ahd);
+
+	saved_modes = ahd_save_modes(ahd);
+	ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
+	if (length != sizeof(struct seeprom_config)) {
+		printk("ahd_proc_write_seeprom: incorrect buffer size\n");
+		goto done;
+	}
+
+	have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer);
+	if (have_seeprom == 0) {
+		printk("ahd_proc_write_seeprom: cksum verification failed\n");
+		goto done;
+	}
+
+	have_seeprom = ahd_acquire_seeprom(ahd);
+	if (!have_seeprom) {
+		printk("ahd_proc_write_seeprom: No Serial EEPROM\n");
+		goto done;
+	} else {
+		u_int start_addr;
+
+		if (ahd->seep_config == NULL) {
+			ahd->seep_config = kmalloc(sizeof(*ahd->seep_config),
+						   GFP_ATOMIC);
+			if (ahd->seep_config == NULL) {
+				printk("aic79xx: Unable to allocate serial "
+				       "eeprom buffer.  Write failing\n");
+				goto done;
+			}
+		}
+		printk("aic79xx: Writing Serial EEPROM\n");
+		start_addr = 32 * (ahd->channel - 'A');
+		ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr,
+				  sizeof(struct seeprom_config)/2);
+		ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config,
+				 start_addr, sizeof(struct seeprom_config)/2,
+				 /*ByteStream*/FALSE);
+		ahd_release_seeprom(ahd);
+		written = length;
+	}
+
+done:
+	ahd_restore_modes(ahd, saved_modes);
+	if (!paused)
+		ahd_unpause(ahd);
+	ahd_unlock(ahd, &s);
+	return (written);
+}
+/*
+ * Return information to handle /proc support for the driver.
+ */
+int
+ahd_linux_show_info(struct seq_file *m, struct Scsi_Host *shost)
+{
+	struct	ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
+	char	ahd_info[256];
+	u_int	max_targ;
+	u_int	i;
+
+	seq_printf(m, "Adaptec AIC79xx driver version: %s\n",
+		  AIC79XX_DRIVER_VERSION);
+	seq_printf(m, "%s\n", ahd->description);
+	ahd_controller_info(ahd, ahd_info);
+	seq_printf(m, "%s\n", ahd_info);
+	seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n",
+		  ahd->scb_data.numscbs, AHD_NSEG);
+
+	max_targ = 16;
+
+	if (ahd->seep_config == NULL)
+		seq_puts(m, "No Serial EEPROM\n");
+	else {
+		seq_puts(m, "Serial EEPROM:\n");
+		for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) {
+			if (((i % 8) == 0) && (i != 0)) {
+				seq_putc(m, '\n');
+			}
+			seq_printf(m, "0x%.4x ",
+				  ((uint16_t*)ahd->seep_config)[i]);
+		}
+		seq_putc(m, '\n');
+	}
+	seq_putc(m, '\n');
+
+	if ((ahd->features & AHD_WIDE) == 0)
+		max_targ = 8;
+
+	for (i = 0; i < max_targ; i++) {
+
+		ahd_dump_target_state(ahd, m, ahd->our_id, 'A',
+				      /*target_id*/i);
+	}
+	return 0;
+}