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Diffstat (limited to 'linux/src/drivers/scsi/aic7xxx_proc.c')
-rw-r--r--linux/src/drivers/scsi/aic7xxx_proc.c397
1 files changed, 397 insertions, 0 deletions
diff --git a/linux/src/drivers/scsi/aic7xxx_proc.c b/linux/src/drivers/scsi/aic7xxx_proc.c
new file mode 100644
index 0000000..451ad99
--- /dev/null
+++ b/linux/src/drivers/scsi/aic7xxx_proc.c
@@ -0,0 +1,397 @@
+/*+M*************************************************************************
+ * Adaptec AIC7xxx device driver proc support for Linux.
+ *
+ * Copyright (c) 1995, 1996 Dean W. Gehnert
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * ----------------------------------------------------------------
+ * o Modified from the EATA-DMA /proc support.
+ * o Additional support for device block statistics provided by
+ * Matthew Jacob.
+ * o Correction of overflow by Heinz Mauelshagen
+ * o Adittional corrections by Doug Ledford
+ *
+ * Dean W. Gehnert, deang@teleport.com, 05/01/96
+ *
+ * $Id: aic7xxx_proc.c,v 1.1 1999/04/26 05:54:19 tb Exp $
+ *-M*************************************************************************/
+
+#define BLS (&aic7xxx_buffer[size])
+#define HDRB \
+" < 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K >128K"
+
+#ifdef PROC_DEBUG
+extern int vsprintf(char *, const char *, va_list);
+
+static void
+proc_debug(const char *fmt, ...)
+{
+ va_list ap;
+ char buf[256];
+
+ va_start(ap, fmt);
+ vsprintf(buf, fmt, ap);
+ printk(buf);
+ va_end(ap);
+}
+#else /* PROC_DEBUG */
+# define proc_debug(fmt, args...)
+#endif /* PROC_DEBUG */
+
+static int aic7xxx_buffer_size = 0;
+static char *aic7xxx_buffer = NULL;
+
+
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_set_info
+ *
+ * Description:
+ * Set parameters for the driver from the /proc filesystem.
+ *-F*************************************************************************/
+int
+aic7xxx_set_info(char *buffer, int length, struct Scsi_Host *HBAptr)
+{
+ proc_debug("aic7xxx_set_info(): %s\n", buffer);
+ return (-ENOSYS); /* Currently this is a no-op */
+}
+
+
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_proc_info
+ *
+ * Description:
+ * Return information to handle /proc support for the driver.
+ *-F*************************************************************************/
+int
+aic7xxx_proc_info ( char *buffer, char **start, off_t offset, int length,
+ int hostno, int inout)
+{
+ struct Scsi_Host *HBAptr;
+ struct aic7xxx_host *p;
+ int size = 0;
+ unsigned char i;
+ struct aic7xxx_xferstats *sp;
+ unsigned char target, lun;
+
+ HBAptr = NULL;
+
+ for(p=first_aic7xxx; p->host->host_no != hostno; p=p->next)
+ ;
+
+ if (!p)
+ {
+ size += sprintf(buffer, "Can't find adapter for host number %d\n", hostno);
+ if (size > length)
+ {
+ return (size);
+ }
+ else
+ {
+ return (length);
+ }
+ }
+
+ HBAptr = p->host;
+
+ if (inout == TRUE) /* Has data been written to the file? */
+ {
+ return (aic7xxx_set_info(buffer, length, HBAptr));
+ }
+
+ p = (struct aic7xxx_host *) HBAptr->hostdata;
+
+ /*
+ * It takes roughly 1K of space to hold all relevant card info, not
+ * counting any proc stats, so we start out with a 1.5k buffer size and
+ * if proc_stats is defined, then we sweep the stats structure to see
+ * how many drives we will be printing out for and add 384 bytes per
+ * device with active stats.
+ *
+ * Hmmmm...that 1.5k seems to keep growing as items get added so they
+ * can be easily viewed for debugging purposes. So, we bumped that
+ * 1.5k to 4k so we can quit having to bump it all the time.
+ */
+
+ size = 4096;
+ for (target = 0; target < MAX_TARGETS; target++)
+ {
+ for (lun = 0; lun < MAX_LUNS; lun++)
+ {
+ if (p->stats[target][lun].xfers != 0)
+#ifdef AIC7XXX_PROC_STATS
+ size += 512;
+#else
+ size += 256;
+#endif
+ }
+ }
+ if (aic7xxx_buffer_size != size)
+ {
+ if (aic7xxx_buffer != NULL)
+ {
+ kfree(aic7xxx_buffer);
+ aic7xxx_buffer_size = 0;
+ }
+ aic7xxx_buffer = kmalloc(size, GFP_KERNEL);
+ }
+ if (aic7xxx_buffer == NULL)
+ {
+ size = sprintf(buffer, "AIC7xxx - kmalloc error at line %d\n",
+ __LINE__);
+ return size;
+ }
+ aic7xxx_buffer_size = size;
+
+ size = 0;
+ size += sprintf(BLS, "Adaptec AIC7xxx driver version: ");
+ size += sprintf(BLS, "%s/", AIC7XXX_C_VERSION);
+ size += sprintf(BLS, "%s", AIC7XXX_H_VERSION);
+ size += sprintf(BLS, "\n");
+ size += sprintf(BLS, "Compile Options:\n");
+#ifdef AIC7XXX_RESET_DELAY
+ size += sprintf(BLS, " AIC7XXX_RESET_DELAY : %d\n", AIC7XXX_RESET_DELAY);
+#endif
+ size += sprintf(BLS, " AIC7XXX_TAGGED_QUEUEING: Adapter Support Enabled\n");
+ size += sprintf(BLS, " Check below to see "
+ "which\n"
+ " devices use tagged "
+ "queueing\n");
+ size += sprintf(BLS, " AIC7XXX_PAGE_ENABLE : Enabled (This is no longer "
+ "an option)\n");
+#ifdef AIC7XXX_PROC_STATS
+ size += sprintf(BLS, " AIC7XXX_PROC_STATS : Enabled\n");
+#else
+ size += sprintf(BLS, " AIC7XXX_PROC_STATS : Disabled\n");
+#endif
+ size += sprintf(BLS, "\n");
+ size += sprintf(BLS, "Adapter Configuration:\n");
+ size += sprintf(BLS, " SCSI Adapter: %s\n",
+ board_names[p->board_name_index]);
+ if (p->flags & AHC_TWIN)
+ size += sprintf(BLS, " Twin Channel\n");
+ else
+ {
+ char *channel = "";
+ char *ultra = "";
+ char *wide = "Narrow ";
+ if (p->flags & AHC_MULTI_CHANNEL)
+ {
+ channel = " Channel A";
+ if (p->flags & (AHC_CHNLB|AHC_CHNLC))
+ channel = (p->flags & AHC_CHNLB) ? " Channel B" : " Channel C";
+ }
+ if (p->features & AHC_WIDE)
+ wide = "Wide ";
+ if (p->features & AHC_ULTRA2)
+ ultra = "Ultra2-LVD/SE ";
+ else if (p->features & AHC_ULTRA)
+ ultra = "Ultra ";
+ size += sprintf(BLS, " %s%sController%s\n",
+ ultra, wide, channel);
+ }
+ if( !(p->maddr) )
+ {
+ size += sprintf(BLS, " Programmed I/O Base: %lx\n", p->base);
+ }
+ else
+ {
+ size += sprintf(BLS, " PCI MMAPed I/O Base: 0x%lx\n", p->mbase);
+ }
+ if( (p->chip & (AHC_VL | AHC_EISA)) )
+ {
+ size += sprintf(BLS, " BIOS Memory Address: 0x%08x\n", p->bios_address);
+ }
+ size += sprintf(BLS, " Adapter SEEPROM Config: %s\n",
+ (p->flags & AHC_SEEPROM_FOUND) ? "SEEPROM found and used." :
+ ((p->flags & AHC_USEDEFAULTS) ? "SEEPROM not found, using defaults." :
+ "SEEPROM not found, using leftover BIOS values.") );
+ size += sprintf(BLS, " Adaptec SCSI BIOS: %s\n",
+ (p->flags & AHC_BIOS_ENABLED) ? "Enabled" : "Disabled");
+ size += sprintf(BLS, " IRQ: %d\n", HBAptr->irq);
+ size += sprintf(BLS, " SCBs: Active %d, Max Active %d,\n",
+ p->activescbs, p->max_activescbs);
+ size += sprintf(BLS, " Allocated %d, HW %d, "
+ "Page %d\n", p->scb_data->numscbs, p->scb_data->maxhscbs,
+ p->scb_data->maxscbs);
+ if (p->flags & AHC_EXTERNAL_SRAM)
+ size += sprintf(BLS, " Using External SCB SRAM\n");
+ size += sprintf(BLS, " Interrupts: %ld", p->isr_count);
+ if (p->chip & AHC_EISA)
+ {
+ size += sprintf(BLS, " %s\n",
+ (p->pause & IRQMS) ? "(Level Sensitive)" : "(Edge Triggered)");
+ }
+ else
+ {
+ size += sprintf(BLS, "\n");
+ }
+ size += sprintf(BLS, " BIOS Control Word: 0x%04x\n",
+ p->bios_control);
+ size += sprintf(BLS, " Adapter Control Word: 0x%04x\n",
+ p->adapter_control);
+ size += sprintf(BLS, " Extended Translation: %sabled\n",
+ (p->flags & AHC_EXTEND_TRANS_A) ? "En" : "Dis");
+ size += sprintf(BLS, "Disconnect Enable Flags: 0x%04x\n", p->discenable);
+ if (p->features & (AHC_ULTRA | AHC_ULTRA2))
+ {
+ size += sprintf(BLS, " Ultra Enable Flags: 0x%04x\n", p->ultraenb);
+ }
+ size += sprintf(BLS, " Tag Queue Enable Flags: 0x%04x\n", p->tagenable);
+ size += sprintf(BLS, "Ordered Queue Tag Flags: 0x%04x\n", p->orderedtag);
+#ifdef AIC7XXX_CMDS_PER_LUN
+ size += sprintf(BLS, "Default Tag Queue Depth: %d\n", AIC7XXX_CMDS_PER_LUN);
+#else
+ size += sprintf(BLS, "Default Tag Queue Depth: %d\n", 8);
+#endif
+ size += sprintf(BLS, " Tagged Queue By Device array for aic7xxx host "
+ "instance %d:\n", p->instance);
+ size += sprintf(BLS, " {");
+ for(i=0; i < (MAX_TARGETS - 1); i++)
+ size += sprintf(BLS, "%d,",aic7xxx_tag_info[p->instance].tag_commands[i]);
+ size += sprintf(BLS, "%d}\n",aic7xxx_tag_info[p->instance].tag_commands[i]);
+ size += sprintf(BLS, " Actual queue depth per device for aic7xxx host "
+ "instance %d:\n", p->instance);
+ size += sprintf(BLS, " {");
+ for(i=0; i < (MAX_TARGETS - 1); i++)
+ size += sprintf(BLS, "%d,", p->dev_max_queue_depth[i]);
+ size += sprintf(BLS, "%d}\n", p->dev_max_queue_depth[i]);
+
+ size += sprintf(BLS, "\n");
+ size += sprintf(BLS, "Statistics:\n");
+ for (target = 0; target < MAX_TARGETS; target++)
+ {
+ for (lun = 0; lun < MAX_LUNS; lun++)
+ {
+ sp = &p->stats[target][lun];
+ if (sp->xfers == 0)
+ {
+ continue;
+ }
+ if (p->features & AHC_TWIN)
+ {
+ size += sprintf(BLS, "(scsi%d:%d:%d:%d)\n",
+ p->host_no, (target >> 3), (target & 0x7), lun);
+ }
+ else
+ {
+ size += sprintf(BLS, "(scsi%d:%d:%d:%d)\n",
+ p->host_no, 0, target, lun);
+ }
+ size += sprintf(BLS, " Device using %s/%s\n",
+ (p->transinfo[target].cur_width == MSG_EXT_WDTR_BUS_16_BIT) ?
+ "Wide" : "Narrow",
+ (p->transinfo[target].cur_offset != 0) ?
+ "Sync transfers at" : "Async transfers." );
+ if (p->transinfo[target].cur_offset != 0)
+ {
+ struct aic7xxx_syncrate *sync_rate;
+ int period = p->transinfo[target].cur_period;
+ int rate = (p->transinfo[target].cur_width ==
+ MSG_EXT_WDTR_BUS_16_BIT) ? 1 : 0;
+
+ sync_rate = aic7xxx_find_syncrate(p, &period, AHC_SYNCRATE_ULTRA2);
+ if (sync_rate != NULL)
+ {
+ size += sprintf(BLS, " %s MByte/sec, offset %d\n",
+ sync_rate->rate[rate],
+ p->transinfo[target].cur_offset );
+ }
+ else
+ {
+ size += sprintf(BLS, " 3.3 MByte/sec, offset %d\n",
+ p->transinfo[target].cur_offset );
+ }
+ }
+ size += sprintf(BLS, " Device Negotiation Settings\n");
+ size += sprintf(BLS, " Period Offset Bus Width\n");
+ size += sprintf(BLS, "User %03d %03d %d\n",
+ p->transinfo[target].user_period,
+ p->transinfo[target].user_offset,
+ p->transinfo[target].user_width);
+ size += sprintf(BLS, "Goal %03d %03d %d\n",
+ p->transinfo[target].goal_period,
+ p->transinfo[target].goal_offset,
+ p->transinfo[target].goal_width);
+ size += sprintf(BLS, "Current %03d %03d %d\n",
+ p->transinfo[target].cur_period,
+ p->transinfo[target].cur_offset,
+ p->transinfo[target].cur_width);
+ size += sprintf(BLS, " Total transfers %ld (%ld read;%ld written)\n",
+ sp->xfers, sp->r_total, sp->w_total);
+ size += sprintf(BLS, " blks(512) rd=%ld; blks(512) wr=%ld\n",
+ sp->r_total512, sp->w_total512);
+#ifdef AIC7XXX_PROC_STATS
+ size += sprintf(BLS, "%s\n", HDRB);
+ size += sprintf(BLS, " Reads:");
+ for (i = 0; i < NUMBER(sp->r_bins); i++)
+ {
+ size += sprintf(BLS, "%6ld ", sp->r_bins[i]);
+ }
+ size += sprintf(BLS, "\n");
+ size += sprintf(BLS, "Writes:");
+ for (i = 0; i < NUMBER(sp->w_bins); i++)
+ {
+ size += sprintf(BLS, "%6ld ", sp->w_bins[i]);
+ }
+#endif /* AIC7XXX_PROC_STATS */
+ size += sprintf(BLS, "\n\n");
+ }
+ }
+
+ if (size >= aic7xxx_buffer_size)
+ {
+ printk(KERN_WARNING "aic7xxx: Overflow in aic7xxx_proc.c\n");
+ }
+
+ if (offset > size - 1)
+ {
+ kfree(aic7xxx_buffer);
+ aic7xxx_buffer = NULL;
+ aic7xxx_buffer_size = length = 0;
+ *start = NULL;
+ }
+ else
+ {
+ *start = &aic7xxx_buffer[offset]; /* Start of wanted data */
+ if (size - offset < length)
+ {
+ length = size - offset;
+ }
+ }
+
+ return (length);
+}
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 2
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -2
+ * c-argdecl-indent: 2
+ * c-label-offset: -2
+ * c-continued-statement-offset: 2
+ * c-continued-brace-offset: 0
+ * indent-tabs-mode: nil
+ * tab-width: 8
+ * End:
+ */
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