patch-2.4.21 linux-2.4.21/drivers/scsi/aic79xx/aic79xx_proc.c

• Lines: 346
• Date: 2003-06-13 07:51:36.000000000 -0700
• Orig file: linux-2.4.20/drivers/scsi/aic79xx/aic79xx_proc.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.20/drivers/scsi/aic79xx/aic79xx_proc.c linux-2.4.21/drivers/scsi/aic79xx/aic79xx_proc.c
@@ -0,0 +1,345 @@
+/*
+ * 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#11 $
+ */
+#include "aic79xx_osm.h"
+#include "aic79xx_inline.h"
+
+static void	copy_mem_info(struct info_str *info, char *data, int len);
+static int	copy_info(struct info_str *info, char *fmt, ...);
+static void	ahd_dump_target_state(struct ahd_softc *ahd,
+				      struct info_str *info,
+				      u_int our_id, char channel,
+				      u_int target_id, u_int target_offset);
+static void	ahd_dump_device_state(struct info_str *info,
+				      struct ahd_linux_device *dev);
+static int	ahd_proc_write_seeprom(struct ahd_softc *ahd,
+				       char *buffer, int length);
+
+static void
+copy_mem_info(struct info_str *info, char *data, int len)
+{
+	if (info->pos + len > info->offset + info->length)
+		len = info->offset + info->length - info->pos;
+
+	if (info->pos + len < info->offset) {
+		info->pos += len;
+		return;
+	}
+
+	if (info->pos < info->offset) {
+		off_t partial;
+
+		partial = info->offset - info->pos;
+		data += partial;
+		info->pos += partial;
+		len  -= partial;
+	}
+
+	if (len > 0) {
+		memcpy(info->buffer, data, len);
+		info->pos += len;
+		info->buffer += len;
+	}
+}
+
+static int
+copy_info(struct info_str *info, char *fmt, ...)
+{
+	va_list args;
+	char buf[256];
+	int len;
+
+	va_start(args, fmt);
+	len = vsprintf(buf, fmt, args);
+	va_end(args);
+
+	copy_mem_info(info, buf, len);
+	return (len);
+}
+
+void
+ahd_format_transinfo(struct info_str *info, struct ahd_transinfo *tinfo)
+{
+	u_int speed;
+	u_int freq;
+	u_int mb;
+
+	if (tinfo->period == AHD_PERIOD_UNKNOWN) {
+		copy_info(info, "Renegotiation Pending\n");
+		return;
+	}
+        speed = 3300;
+        freq = 0;
+	if (tinfo->offset != 0) {
+		freq = aic_calc_syncsrate(tinfo->period);
+		speed = freq;
+	}
+	speed *= (0x01 << tinfo->width);
+        mb = speed / 1000;
+        if (mb > 0)
+		copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000);
+        else
+		copy_info(info, "%dKB/s transfers", speed);
+
+	if (freq != 0) {
+		int	printed_options;
+
+		printed_options = 0;
+		copy_info(info, " (%d.%03dMHz", freq / 1000, freq % 1000);
+		if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) {
+			copy_info(info, " DT");
+			printed_options++;
+		}
+		if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
+			copy_info(info, "%s", printed_options ? "|IU" : " IU");
+			printed_options++;
+		}
+		if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) {
+			copy_info(info, "%s",
+				  printed_options ? "|RTI" : " RTI");
+			printed_options++;
+		}
+		if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) {
+			copy_info(info, "%s",
+				  printed_options ? "|QAS" : " QAS");
+			printed_options++;
+		}
+	}
+
+	if (tinfo->width > 0) {
+		if (freq != 0) {
+			copy_info(info, ", ");
+		} else {
+			copy_info(info, " (");
+		}
+		copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width));
+	} else if (freq != 0) {
+		copy_info(info, ")");
+	}
+	copy_info(info, "\n");
+}
+
+static void
+ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info,
+		      u_int our_id, char channel, u_int target_id,
+		      u_int target_offset)
+{
+	struct	ahd_linux_target *targ;
+	struct	ahd_initiator_tinfo *tinfo;
+	struct	ahd_tmode_tstate *tstate;
+	int	lun;
+
+	tinfo = ahd_fetch_transinfo(ahd, channel, our_id,
+				    target_id, &tstate);
+	copy_info(info, "Channel %c Target %d Negotiation Settings\n",
+		  channel, target_id);
+	copy_info(info, "\tUser: ");
+	ahd_format_transinfo(info, &tinfo->user);
+	targ = ahd->platform_data->targets[target_offset];
+	if (targ == NULL)
+		return;
+
+	copy_info(info, "\tGoal: ");
+	ahd_format_transinfo(info, &tinfo->goal);
+	copy_info(info, "\tCurr: ");
+	ahd_format_transinfo(info, &tinfo->curr);
+	copy_info(info, "\tTransmission Errors %ld\n", targ->errors_detected);
+
+	for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
+		struct ahd_linux_device *dev;
+
+		dev = targ->devices[lun];
+
+		if (dev == NULL)
+			continue;
+
+		ahd_dump_device_state(info, dev);
+	}
+}
+
+static void
+ahd_dump_device_state(struct info_str *info, struct ahd_linux_device *dev)
+{
+	copy_info(info, "\tChannel %c Target %d Lun %d Settings\n",
+		  dev->target->channel + 'A', dev->target->target, dev->lun);
+
+	copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued);
+	copy_info(info, "\t\tCommands Active %d\n", dev->active);
+	copy_info(info, "\t\tCommand Openings %d\n", dev->openings);
+	copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags);
+	copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
+}
+
+static int
+ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length)
+{
+	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)) {
+		printf("ahd_proc_write_seeprom: incorrect buffer size\n");
+		goto done;
+	}
+
+	have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer);
+	if (have_seeprom == 0) {
+		printf("ahd_proc_write_seeprom: cksum verification failed\n");
+		goto done;
+	}
+
+	have_seeprom = ahd_acquire_seeprom(ahd);
+	if (!have_seeprom) {
+		printf("ahd_proc_write_seeprom: No Serial EEPROM\n");
+		goto done;
+	} else {
+		u_int start_addr;
+
+		if (ahd->seep_config == NULL) {
+			ahd->seep_config = malloc(sizeof(*ahd->seep_config),
+						  M_DEVBUF, M_NOWAIT);
+			if (ahd->seep_config == NULL) {
+				printf("aic79xx: Unable to allocate serial "
+				       "eeprom buffer.  Write failing\n");
+				goto done;
+			}
+		}
+		printf("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);
+		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_proc_info(char *buffer, char **start, off_t offset,
+		  int length, int hostno, int inout)
+{
+	struct	ahd_softc *ahd;
+	struct	info_str info;
+	char	ahd_info[256];
+	u_long	l;
+	u_int	max_targ;
+	u_int	i;
+	int	retval;
+
+	retval = -EINVAL;
+	ahd_list_lock(&l);
+	TAILQ_FOREACH(ahd, &ahd_tailq, links) {
+		if (ahd->platform_data->host->host_no == hostno)
+			break;
+	}
+
+	if (ahd == NULL)
+		goto done;
+
+	 /* Has data been written to the file? */ 
+	if (inout == TRUE) {
+		retval = ahd_proc_write_seeprom(ahd, buffer, length);
+		goto done;
+	}
+
+	if (start)
+		*start = buffer;
+
+	info.buffer	= buffer;
+	info.length	= length;
+	info.offset	= offset;
+	info.pos	= 0;
+
+	copy_info(&info, "Adaptec AIC79xx driver version: %s\n",
+		  AIC79XX_DRIVER_VERSION);
+	ahd_controller_info(ahd, ahd_info);
+	copy_info(&info, "%s\n\n", ahd_info);
+
+	if (ahd->seep_config == NULL)
+		copy_info(&info, "No Serial EEPROM\n");
+	else {
+		copy_info(&info, "Serial EEPROM:\n");
+		for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) {
+			if (((i % 8) == 0) && (i != 0)) {
+				copy_info(&info, "\n");
+			}
+			copy_info(&info, "0x%.4x ",
+				  ((uint16_t*)ahd->seep_config)[i]);
+		}
+		copy_info(&info, "\n");
+	}
+	copy_info(&info, "\n");
+
+	max_targ = 15;
+	if ((ahd->features & AHD_WIDE) == 0)
+		max_targ = 7;
+
+	for (i = 0; i <= max_targ; i++) {
+
+		ahd_dump_target_state(ahd, &info, ahd->our_id, 'A',
+				      /*target_id*/i, /*target_offset*/i);
+	}
+	retval = info.pos > info.offset ? info.pos - info.offset : 0;
+done:
+	ahd_list_unlock(&l);
+	return (retval);
+}