Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 362 insertions, 0 deletions

diff --git a/drivers/scsi/aic7xxx/aic79xx_proc.c b/drivers/scsi/aic7xxx/aic79xx_proc.c
new file mode 100644
index 000000000000..e01cd6175e34
--- /dev/null
+++ b/drivers/scsi/aic7xxx/aic79xx_proc.c
@@ -0,0 +1,362 @@
+/*
+ * 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     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_RD_STRM) != 0) {
+                        copy_info(info, " RDSTRM");
+                        printed_options++;
+                }
+                if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) {
+                        copy_info(info, "%s", printed_options ? "|DT" : " 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, "Target %d Negotiation Settings\n", 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,
+                                 /*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
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+ahd_linux_proc_info(char *buffer, char **start, off_t offset,
+                    int length, int hostno, int inout)
+#else
+ahd_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
+                    off_t offset, int length, int inout)
+#endif
+{
+        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);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+        TAILQ_FOREACH(ahd, &ahd_tailq, links) {
+                if (ahd->platform_data->host->host_no == hostno)
+                        break;
+        }
+#else
+        ahd = ahd_find_softc(*(struct ahd_softc **)shost->hostdata);
+#endif
+
+        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);
+        copy_info(&info, "%s\n", ahd->description);
+        ahd_controller_info(ahd, ahd_info);
+        copy_info(&info, "%s\n", ahd_info);
+        copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n",
+                  ahd->scb_data.numscbs, AHD_NSEG);
+
+        max_targ = 15;
+
+        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");
+
+        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);
+}