/*+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 4.1 1997/06/97 08:23:42 deang Exp $ *-M*************************************************************************/ #define BLS (&aic7xxx_buffer[size]) #define HDRB \ " 0 - 4K 4 - 16K 16 - 64K 64 - 256K 256K - 1M 1M+" #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*************************************************************************/ static 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 ( struct Scsi_Host *HBAptr, char *buffer, char **start, off_t offset, int length, int inout) { struct aic7xxx_host *p; struct aic_dev_data *aic_dev; struct scsi_device *sdptr; int size = 0; unsigned char i; unsigned char tindex; for(p=first_aic7xxx; p && p->host != HBAptr; p=p->next) ; if (!p) { size += sprintf(buffer, "Can't find adapter for host number %d\n", HBAptr->host_no); if (size > length) { return (size); } else { return (length); } } 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; list_for_each_entry(aic_dev, &p->aic_devs, list) size += 512; 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, "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 Controller "); 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_ULTRA3) { switch(p->chip & AHC_CHIPID_MASK) { case AHC_AIC7892: case AHC_AIC7899: ultra = "Ultra-160/m LVD/SE "; break; default: ultra = "Ultra-3 LVD/SE "; break; } } else if (p->features & AHC_ULTRA2) ultra = "Ultra-2 LVD/SE "; else if (p->features & AHC_ULTRA) ultra = "Ultra "; size += sprintf(BLS, " %s%sController%s ", ultra, wide, channel); } switch(p->chip & ~AHC_CHIPID_MASK) { case AHC_VL: size += sprintf(BLS, "at VLB slot %d\n", p->pci_device_fn); break; case AHC_EISA: size += sprintf(BLS, "at EISA slot %d\n", p->pci_device_fn); break; default: size += sprintf(BLS, "at PCI %d/%d/%d\n", p->pci_bus, PCI_SLOT(p->pci_device_fn), PCI_FUNC(p->pci_device_fn)); break; } 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, "Default Tag Queue Depth: %d\n", aic7xxx_default_queue_depth); 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, "\n"); size += sprintf(BLS, "Statistics:\n\n"); list_for_each_entry(aic_dev, &p->aic_devs, list) { sdptr = aic_dev->SDptr; tindex = sdptr->channel << 3 | sdptr->id; size += sprintf(BLS, "(scsi%d:%d:%d:%d)\n", p->host_no, sdptr->channel, sdptr->id, sdptr->lun); size += sprintf(BLS, " Device using %s/%s", (aic_dev->cur.width == MSG_EXT_WDTR_BUS_16_BIT) ? "Wide" : "Narrow", (aic_dev->cur.offset != 0) ? "Sync transfers at " : "Async transfers.\n" ); if (aic_dev->cur.offset != 0) { struct aic7xxx_syncrate *sync_rate; unsigned char options = aic_dev->cur.options; int period = aic_dev->cur.period; int rate = (aic_dev->cur.width == MSG_EXT_WDTR_BUS_16_BIT) ? 1 : 0; sync_rate = aic7xxx_find_syncrate(p, &period, 0, &options); if (sync_rate != NULL) { size += sprintf(BLS, "%s MByte/sec, offset %d\n", sync_rate->rate[rate], aic_dev->cur.offset ); } else { size += sprintf(BLS, "3.3 MByte/sec, offset %d\n", aic_dev->cur.offset ); } } size += sprintf(BLS, " Transinfo settings: "); size += sprintf(BLS, "current(%d/%d/%d/%d), ", aic_dev->cur.period, aic_dev->cur.offset, aic_dev->cur.width, aic_dev->cur.options); size += sprintf(BLS, "goal(%d/%d/%d/%d), ", aic_dev->goal.period, aic_dev->goal.offset, aic_dev->goal.width, aic_dev->goal.options); size += sprintf(BLS, "user(%d/%d/%d/%d)\n", p->user[tindex].period, p->user[tindex].offset, p->user[tindex].width, p->user[tindex].options); if(sdptr->simple_tags) { size += sprintf(BLS, " Tagged Command Queueing Enabled, Ordered Tags %s, Depth %d/%d\n", sdptr->ordered_tags ? "Enabled" : "Disabled", sdptr->queue_depth, aic_dev->max_q_depth); } if(aic_dev->barrier_total) size += sprintf(BLS, " Total transfers %ld:\n (%ld/%ld/%ld/%ld reads/writes/REQ_BARRIER/Ordered Tags)\n", aic_dev->r_total+aic_dev->w_total, aic_dev->r_total, aic_dev->w_total, aic_dev->barrier_total, aic_dev->ordered_total); else size += sprintf(BLS, " Total transfers %ld:\n (%ld/%ld reads/writes)\n", aic_dev->r_total+aic_dev->w_total, aic_dev->r_total, aic_dev->w_total); size += sprintf(BLS, "%s\n", HDRB); size += sprintf(BLS, " Reads:"); for (i = 0; i < ARRAY_SIZE(aic_dev->r_bins); i++) { size += sprintf(BLS, " %10ld", aic_dev->r_bins[i]); } size += sprintf(BLS, "\n"); size += sprintf(BLS, " Writes:"); for (i = 0; i < ARRAY_SIZE(aic_dev->w_bins); i++) { size += sprintf(BLS, " %10ld", aic_dev->w_bins[i]); } size += sprintf(BLS, "\n"); 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 = buffer; length = min_t(int, length, size - offset); memcpy(buffer, &aic7xxx_buffer[offset], length); } 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: */