aic7xxx_osm.h revision 013791ee01754f83dbb4ccfd266381db74e120b5
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Adaptec AIC7xxx device driver for Linux. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 1994 John Aycock 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The University of Calgary Department of Computer Science. 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2, or (at your option) 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * any later version. 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; see the file COPYING. If not, write to 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2000-2003 Adaptec Inc. 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * All rights reserved. 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Redistribution and use in source and binary forms, with or without 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * modification, are permitted provided that the following conditions 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * are met: 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. Redistributions of source code must retain the above copyright 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * notice, this list of conditions, and the following disclaimer, 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * without modification. 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. Redistributions in binary form must reproduce at minimum a disclaimer 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * substantially similar to the "NO WARRANTY" disclaimer below 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ("Disclaimer") and any redistribution must be conditioned upon 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * including a substantially similar Disclaimer requirement for further 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * binary redistribution. 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. Neither the names of the above-listed copyright holders nor the names 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of any contributors may be used to endorse or promote products derived 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from this software without specific prior written permission. 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternatively, this software may be distributed under the terms of the 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License ("GPL") version 2 as published by the Free 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Software Foundation. 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NO WARRANTY 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * POSSIBILITY OF SUCH DAMAGES. 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_osm.h#151 $ 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef _AIC7XXX_LINUX_H_ 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _AIC7XXX_LINUX_H_ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 62013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwig#include <linux/config.h> 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/blkdev.h> 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ioport.h> 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/smp_lock.h> 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/version.h> 70e4e360c325c90f7830baaa2a27cd7a1f2bdeb6b0James Bottomley#include <linux/interrupt.h> 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 72013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwig#include <linux/slab.h> 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/byteorder.h> 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 76013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwig#include <scsi/scsi.h> 77013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwig#include <scsi/scsi_cmnd.h> 78013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwig#include <scsi/scsi_eh.h> 79013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwig#include <scsi/scsi_device.h> 80013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwig#include <scsi/scsi_host.h> 81013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwig#include <scsi/scsi_tcq.h> 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Core SCSI definitions */ 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC_LIB_PREFIX ahc 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Name space conflict with BSD queue macros */ 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef LIST_HEAD 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#undef LIST_HEAD 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "cam.h" 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "queue.h" 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "scsi_message.h" 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "aiclib.h" 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/*********************************** Debugging ********************************/ 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC7XXX_DEBUG_ENABLE 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC7XXX_DEBUG_MASK 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHC_DEBUG 1 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHC_DEBUG_OPTS CONFIG_AIC7XXX_DEBUG_MASK 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Compile in debugging code, but do not enable any printfs. 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHC_DEBUG 1 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* No debugging code. */ 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/************************* Forward Declarations *******************************/ 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahc_softc; 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct pci_dev *ahc_dev_softc_t; 113013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwigtypedef struct scsi_cmnd *ahc_io_ctx_t; 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************* Byte Order ***********************************/ 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_htobe16(x) cpu_to_be16(x) 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_htobe32(x) cpu_to_be32(x) 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_htobe64(x) cpu_to_be64(x) 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_htole16(x) cpu_to_le16(x) 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_htole32(x) cpu_to_le32(x) 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_htole64(x) cpu_to_le64(x) 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_be16toh(x) be16_to_cpu(x) 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_be32toh(x) be32_to_cpu(x) 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_be64toh(x) be64_to_cpu(x) 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_le16toh(x) le16_to_cpu(x) 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_le32toh(x) le32_to_cpu(x) 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_le64toh(x) le64_to_cpu(x) 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef LITTLE_ENDIAN 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LITTLE_ENDIAN 1234 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef BIG_ENDIAN 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BIG_ENDIAN 4321 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef BYTE_ORDER 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(__BIG_ENDIAN) 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BYTE_ORDER BIG_ENDIAN 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(__LITTLE_ENDIAN) 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BYTE_ORDER LITTLE_ENDIAN 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* BYTE_ORDER */ 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/************************* Configuration Data *********************************/ 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern u_int aic7xxx_no_probe; 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern u_int aic7xxx_allow_memio; 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int aic7xxx_detect_complete; 151013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwigextern struct scsi_host_template aic7xxx_driver_template; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************** Bus Space/DMA **********************************/ 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef uint32_t bus_size_t; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef enum { 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUS_SPACE_MEMIO, 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUS_SPACE_PIO 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} bus_space_tag_t; 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef union { 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_long ioport; 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile uint8_t __iomem *maddr; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} bus_space_handle_t; 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct bus_dma_segment 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t ds_addr; 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_size_t ds_len; 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} bus_dma_segment_t; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahc_linux_dma_tag 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_size_t alignment; 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_size_t boundary; 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_size_t maxsize; 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct ahc_linux_dma_tag* bus_dma_tag_t; 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1817dfa0f2673c17334c5de75a449f7bc161c9bd2c0Christoph Hellwigtypedef dma_addr_t bus_dmamap_t; 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef int bus_dma_filter_t(void*, dma_addr_t); 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int); 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_DMA_WAITOK 0x0 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_DMA_NOWAIT 0x1 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_DMA_ALLOCNOW 0x2 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_DMA_LOAD_SEGS 0x4 /* 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Argument is an S/G list not 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a single buffer. 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_SPACE_MAXADDR 0xFFFFFFFF 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t /*parent*/, 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_size_t /*alignment*/, bus_size_t /*boundary*/, 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/, 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_dma_filter_t*/*filter*/, void */*filterarg*/, 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_size_t /*maxsize*/, int /*nsegments*/, 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_size_t /*maxsegsz*/, int /*flags*/, 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_dma_tag_t */*dma_tagp*/); 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t /*dmat*/, 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void** /*vaddr*/, int /*flags*/, 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_dmamap_t* /*mapp*/); 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t /*dmat*/, 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void* /*vaddr*/, bus_dmamap_t /*map*/); 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/, 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_dmamap_t /*map*/); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t /*dmat*/, 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_dmamap_t /*map*/, void * /*buf*/, 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_size_t /*buflen*/, bus_dmamap_callback_t *, 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void */*callback_arg*/, int /*flags*/); 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t); 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Operations performed by ahc_dmamap_sync(). 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */ 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */ 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */ 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */ 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * XXX 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ahc_dmamap_sync is only used on buffers allocated with 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the pci_alloc_consistent() API. Although I'm not sure how 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this works on architectures with a write buffer, Linux does 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not have an API to sync "coherent" memory. Perhaps we need 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to do an mb()? 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/************************** Timer DataStructures ******************************/ 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct timer_list ahc_timer_t; 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/********************************** Includes **********************************/ 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC_DEBUG_REGISTERS 1 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC_DEBUG_REGISTERS 0 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "aic7xxx.h" 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************** Timer Facilities *******************************/ 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_timer_init init_timer 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ahc_timer_stop del_timer_sync 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef void ahc_linux_callback_t (u_long); 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_timer_reset(ahc_timer_t *timer, int usec, 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc_callback_t *func, void *arg); 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_scb_timer_reset(struct scb *scb, u_int usec); 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_timer_reset(ahc_timer_t *timer, int usec, ahc_callback_t *func, void *arg) 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_softc *ahc; 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc = (struct ahc_softc *)arg; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds del_timer(timer); 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds timer->data = (u_long)arg; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds timer->expires = jiffies + (usec * HZ)/1000000; 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds timer->function = (ahc_linux_callback_t*)func; 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds add_timer(timer); 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_scb_timer_reset(struct scb *scb, u_int usec) 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mod_timer(&scb->io_ctx->eh_timeout, jiffies + (usec * HZ)/1000000); 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************** SMP support ************************************/ 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/spinlock.h> 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC7XXX_DRIVER_VERSION "6.2.36" 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/**************************** Front End Queues ********************************/ 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Data structure used to cast the Linux struct scsi_cmnd to something 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that allows us to use the queue macros. The linux structure has 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * plenty of space to hold the links fields as required by the queue 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * macros, but the queue macors require them to have the correct type. 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahc_cmd_internal { 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Area owned by the Linux scsi layer. */ 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t private[offsetof(struct scsi_cmnd, SCp.Status)]; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds union { 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STAILQ_ENTRY(ahc_cmd) ste; 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LIST_ENTRY(ahc_cmd) le; 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds TAILQ_ENTRY(ahc_cmd) tqe; 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } links; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint32_t end; 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahc_cmd { 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds union { 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_cmd_internal icmd; 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_cmnd scsi_cmd; 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } un; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define acmd_icmd(cmd) ((cmd)->un.icmd) 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define acmd_scsi_cmd(cmd) ((cmd)->un.scsi_cmd) 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define acmd_links un.icmd.links 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/*************************** Device Data Structures ***************************/ 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A per probed device structure used to deal with some error recovery 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scenarios that the Linux mid-layer code just doesn't know how to 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * handle. The structure allocated for a device only becomes persistent 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * after a successfully completed inquiry command to the target when 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that inquiry data indicates a lun is present. 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsTAILQ_HEAD(ahc_busyq, ahc_cmd); 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef enum { 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_DEV_UNCONFIGURED = 0x01, 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */ 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_DEV_TIMER_ACTIVE = 0x04, /* Our timer is active */ 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_DEV_ON_RUN_LIST = 0x08, /* Queued to be run later */ 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */ 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */ 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */ 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_DEV_SLAVE_CONFIGURED = 0x80 /* slave_configure() has been called */ 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} ahc_linux_dev_flags; 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahc_linux_target; 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahc_linux_device { 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds TAILQ_ENTRY(ahc_linux_device) links; 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The number of transactions currently 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * queued to the device. 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int active; 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The currently allowed number of 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * transactions that can be queued to 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the device. Must be signed for 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * conversion from tagged to untagged 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mode where the device may have more 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * than one outstanding active transaction. 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int openings; 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A positive count indicates that this 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device's queue is halted. 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_int qfrozen; 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cumulative command counter. 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_long commands_issued; 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The number of tagged transactions when 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * running at our current opening level 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that have been successfully received by 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this device since the last QUEUE FULL. 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_int tag_success_count; 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHC_TAG_SUCCESS_INTERVAL 50 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc_linux_dev_flags flags; 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Per device timer. 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct timer_list timer; 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The high limit for the tags variable. 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_int maxtags; 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The computed number of tags outstanding 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * at the time of the last QUEUE FULL event. 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_int tags_on_last_queuefull; 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * How many times we have seen a queue full 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * with the same number of tags. This is used 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to stop our adaptive queue depth algorithm 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * on devices with a fixed number of tags. 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_int last_queuefull_same_count; 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHC_LOCK_TAGS_COUNT 50 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * How many transactions have been queued 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * without the device going idle. We use 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this statistic to determine when to issue 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * an ordered tag to prevent transaction 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * starvation. This statistic is only updated 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if the AHC_DEV_PERIODIC_OTAG flag is set 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * on this device. 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_int commands_since_idle_or_otag; 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHC_OTAG_THRESH 500 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int lun; 415013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwig struct scsi_device *scsi_device; 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_linux_target *target; 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahc_linux_target { 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_linux_device *devices[AHC_NUM_LUNS]; 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int channel; 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int target; 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int refcount; 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_transinfo last_tinfo; 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_softc *ahc; 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/********************* Definitions Required by the Core ***********************/ 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Number of SG segments we require. So long as the S/G segments for 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a particular transaction are allocated in a physically contiguous 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * manner and are allocated below 4GB, the number of S/G segments is 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unrestricted. 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHC_NSEG 128 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Per-SCB OSM storage. 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef enum { 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_UP_EH_SEMAPHORE = 0x1 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} ahc_linux_scb_flags; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct scb_platform_data { 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_linux_device *dev; 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t buf_busaddr; 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint32_t xfer_len; 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint32_t sense_resid; /* Auto-Sense residual */ 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc_linux_scb_flags flags; 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Define a structure used for each host adapter. All members are 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * aligned on a boundary >= the size of the member to honor the 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * alignment restrictions of the various platforms supported by 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this driver. 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef enum { 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_RUN_CMPLT_Q_TIMER = 0x10 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} ahc_linux_softc_flags; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsTAILQ_HEAD(ahc_completeq, ahc_cmd); 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahc_platform_data { 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Fields accessed from interrupt context. 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_linux_target *targets[AHC_NUM_TARGETS]; 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds TAILQ_HEAD(, ahc_linux_device) device_runq; 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_completeq completeq; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spinlock_t spin_lock; 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_int qfrozen; 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct timer_list completeq_timer; 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct timer_list reset_timer; 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct semaphore eh_sem; 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *host; /* pointer to scsi host */ 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHC_LINUX_NOIRQ ((uint32_t)~0) 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint32_t irq; /* IRQ for this adapter */ 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint32_t bios_address; 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint32_t mem_busaddr; /* Mem Base Addr */ 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc_linux_softc_flags flags; 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/************************** OS Utility Wrappers *******************************/ 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define printf printk 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define M_NOWAIT GFP_ATOMIC 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define M_WAITOK 0 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define malloc(size, type, flags) kmalloc(size, flags) 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define free(ptr, type) kfree(ptr) 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_delay(long); 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_delay(long usec) 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * udelay on Linux can have problems for 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * multi-millisecond waits. Wait at most 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1024us per call. 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (usec > 0) { 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds udelay(usec % 1024); 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds usec -= 1024; 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************** Low Level I/O **********************************/ 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline uint8_t ahc_inb(struct ahc_softc * ahc, long port); 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val); 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_outsb(struct ahc_softc * ahc, long port, 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t *, int count); 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_insb(struct ahc_softc * ahc, long port, 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t *, int count); 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline uint8_t 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_inb(struct ahc_softc * ahc, long port) 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t x; 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ahc->tag == BUS_SPACE_MEMIO) { 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds x = readb(ahc->bsh.maddr + port); 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds x = inb(ahc->bsh.ioport + port); 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mb(); 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (x); 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_outb(struct ahc_softc * ahc, long port, uint8_t val) 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ahc->tag == BUS_SPACE_MEMIO) { 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(val, ahc->bsh.maddr + port); 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb(val, ahc->bsh.ioport + port); 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mb(); 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_outsb(struct ahc_softc * ahc, long port, uint8_t *array, int count) 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There is probably a more efficient way to do this on Linux 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but we don't use this for anything speed critical and this 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * should work. 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < count; i++) 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc_outb(ahc, port, *array++); 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_insb(struct ahc_softc * ahc, long port, uint8_t *array, int count) 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There is probably a more efficient way to do this on Linux 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but we don't use this for anything speed critical and this 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * should work. 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < count; i++) 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *array++ = ahc_inb(ahc, port); 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/**************************** Initialization **********************************/ 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_linux_register_host(struct ahc_softc *, 571013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwig struct scsi_host_template *); 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsuint64_t ahc_linux_get_memsize(void); 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/*************************** Pretty Printing **********************************/ 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct info_str { 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *buffer; 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int length; 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds off_t offset; 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pos; 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_format_transinfo(struct info_str *info, 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_transinfo *tinfo); 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************** Locking *************************************/ 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Lock protecting internal data structures */ 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_lockinit(struct ahc_softc *); 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_lock(struct ahc_softc *, unsigned long *flags); 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_unlock(struct ahc_softc *, unsigned long *flags); 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Lock held during ahc_list manipulation and ahc softc frees */ 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern spinlock_t ahc_list_spinlock; 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_list_lockinit(void); 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_list_lock(unsigned long *flags); 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_list_unlock(unsigned long *flags); 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_lockinit(struct ahc_softc *ahc) 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_init(&ahc->platform_data->spin_lock); 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_lock(struct ahc_softc *ahc, unsigned long *flags) 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags); 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_unlock(struct ahc_softc *ahc, unsigned long *flags) 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags); 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_list_lockinit(void) 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_init(&ahc_list_spinlock); 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_list_lock(unsigned long *flags) 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&ahc_list_spinlock, *flags); 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_list_unlock(unsigned long *flags) 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&ahc_list_spinlock, *flags); 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************* PCI Definitions ******************************/ 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCIM_xxx: mask to locate subfield in register 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCIR_xxx: config register offset 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCIC_xxx: device class 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCIS_xxx: device subclass 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCIP_xxx: device programming interface 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices) 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCID_xxx: device ID 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_DEVVENDOR 0x00 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_VENDOR 0x00 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_DEVICE 0x02 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_COMMAND 0x04 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIM_CMD_PORTEN 0x0001 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIM_CMD_MEMEN 0x0002 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIM_CMD_BUSMASTEREN 0x0004 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIM_CMD_MWRICEN 0x0010 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIM_CMD_PERRESPEN 0x0040 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIM_CMD_SERRESPEN 0x0100 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_STATUS 0x06 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_REVID 0x08 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_PROGIF 0x09 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_SUBCLASS 0x0a 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_CLASS 0x0b 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_CACHELNSZ 0x0c 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_LATTIMER 0x0d 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_HEADERTYPE 0x0e 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIM_MFDEV 0x80 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_BIST 0x0f 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_CAP_PTR 0x34 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* config registers for header type 0 devices */ 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_MAPS 0x10 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_SUBVEND_0 0x2c 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCIR_SUBDEV_0 0x2e 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern struct pci_driver aic7xxx_pci_driver; 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef enum 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_POWER_STATE_D0, 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_POWER_STATE_D1, 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_POWER_STATE_D2, 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AHC_POWER_STATE_D3 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} ahc_power_state; 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/**************************** VL/EISA Routines ********************************/ 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_EISA 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern uint32_t aic7xxx_probe_eisa_vl; 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_linux_eisa_init(void); 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_linux_eisa_exit(void); 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint aic7770_map_registers(struct ahc_softc *ahc, 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_int port); 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint aic7770_map_int(struct ahc_softc *ahc, u_int irq); 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int ahc_linux_eisa_init(void) { 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void ahc_linux_eisa_exit(void) { 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************* PCI Routines *********************************/ 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_linux_pci_init(void); 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_linux_pci_exit(void); 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_pci_map_registers(struct ahc_softc *ahc); 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_pci_map_int(struct ahc_softc *ahc); 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t pci, 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int reg, int width); 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline uint32_t 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width) 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (width) { 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 1: 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t retval; 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_read_config_byte(pci, reg, &retval); 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 2: 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint16_t retval; 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_read_config_word(pci, reg, &retval); 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 4: 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint32_t retval; 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_read_config_dword(pci, reg, &retval); 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds panic("ahc_pci_read_config: Read size too big"); 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* NOTREACHED */ 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_pci_write_config(ahc_dev_softc_t pci, 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int reg, uint32_t value, 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int width); 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width) 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (width) { 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 1: 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_write_config_byte(pci, reg, value); 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 2: 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_write_config_word(pci, reg, value); 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 4: 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_write_config_dword(pci, reg, value); 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds panic("ahc_pci_write_config: Write size too big"); 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* NOTREACHED */ 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline int ahc_get_pci_function(ahc_dev_softc_t); 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline int 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_get_pci_function(ahc_dev_softc_t pci) 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (PCI_FUNC(pci->devfn)); 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline int ahc_get_pci_slot(ahc_dev_softc_t); 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline int 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_get_pci_slot(ahc_dev_softc_t pci) 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (PCI_SLOT(pci->devfn)); 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline int ahc_get_pci_bus(ahc_dev_softc_t); 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline int 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_get_pci_bus(ahc_dev_softc_t pci) 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (pci->bus->number); 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int ahc_linux_pci_init(void) { 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void ahc_linux_pci_exit(void) { 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_flush_device_writes(struct ahc_softc *); 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_flush_device_writes(struct ahc_softc *ahc) 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* XXX Is this sufficient for all architectures??? */ 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc_inb(ahc, INTSTAT); 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/**************************** Proc FS Support *********************************/ 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_linux_proc_info(struct Scsi_Host *, char *, char **, 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds off_t, int, int); 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/*************************** Domain Validation ********************************/ 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/*********************** Transaction Access Wrappers *************************/ 802013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwigstatic __inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t); 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_set_transaction_status(struct scb *, uint32_t); 804013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwigstatic __inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t); 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_set_scsi_status(struct scb *, uint32_t); 806013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwigstatic __inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd); 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline uint32_t ahc_get_transaction_status(struct scb *); 808013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwigstatic __inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd); 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline uint32_t ahc_get_scsi_status(struct scb *); 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_set_transaction_tag(struct scb *, int, u_int); 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline u_long ahc_get_transfer_length(struct scb *); 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline int ahc_get_transfer_dir(struct scb *); 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_set_residual(struct scb *, u_long); 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_set_sense_residual(struct scb *scb, u_long resid); 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline u_long ahc_get_residual(struct scb *); 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline u_long ahc_get_sense_residual(struct scb *); 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline int ahc_perform_autosense(struct scb *); 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *, 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scb *); 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_notify_xfer_settings_change(struct ahc_softc *, 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_devinfo *); 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_platform_scb_free(struct ahc_softc *ahc, 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scb *scb); 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahc_freeze_scb(struct scb *scb); 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 827013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwigvoid ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status) 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd->result &= ~(CAM_STATUS_MASK << 16); 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd->result |= status << 16; 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_set_transaction_status(struct scb *scb, uint32_t status) 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc_cmd_set_transaction_status(scb->io_ctx,status); 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 840013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwigvoid ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status) 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd->result &= ~0xFFFF; 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd->result |= status; 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_set_scsi_status(struct scb *scb, uint32_t status) 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc_cmd_set_scsi_status(scb->io_ctx, status); 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 853013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwiguint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd) 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ((cmd->result >> 16) & CAM_STATUS_MASK); 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsuint32_t ahc_get_transaction_status(struct scb *scb) 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ahc_cmd_get_transaction_status(scb->io_ctx)); 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 865013791ee01754f83dbb4ccfd266381db74e120b5Christoph Hellwiguint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd) 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (cmd->result & 0xFFFF); 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsuint32_t ahc_get_scsi_status(struct scb *scb) 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ahc_cmd_get_scsi_status(scb->io_ctx)); 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type) 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Nothing to do for linux as the incoming transaction 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has no concept of tag/non tagged, etc. 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsu_long ahc_get_transfer_length(struct scb *scb) 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (scb->platform_data->xfer_len); 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_get_transfer_dir(struct scb *scb) 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (scb->io_ctx->sc_data_direction); 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_set_residual(struct scb *scb, u_long resid) 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb->io_ctx->resid = resid; 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_set_sense_residual(struct scb *scb, u_long resid) 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb->platform_data->sense_resid = resid; 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsu_long ahc_get_residual(struct scb *scb) 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (scb->io_ctx->resid); 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsu_long ahc_get_sense_residual(struct scb *scb) 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (scb->platform_data->sense_resid); 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_perform_autosense(struct scb *scb) 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We always perform autosense in Linux. 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * On other platforms this is set on a 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * per-transaction basis. 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (1); 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline uint32_t 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb) 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (sizeof(struct scsi_sense_data)); 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_notify_xfer_settings_change(struct ahc_softc *ahc, 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_devinfo *devinfo) 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Nothing to do here for linux */ 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb) 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc->flags &= ~AHC_RESOURCE_SHORTAGE; 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg); 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_platform_free(struct ahc_softc *ahc); 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb); 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahc_freeze_scb(struct scb *scb) 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) { 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb->io_ctx->result |= CAM_DEV_QFRZN << 16; 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb->platform_data->dev->qfrozen++; 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_platform_set_tags(struct ahc_softc *ahc, 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahc_devinfo *devinfo, ahc_queue_alg); 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_platform_abort_scbs(struct ahc_softc *ahc, int target, 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char channel, int lun, u_int tag, 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds role_t role, uint32_t status); 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsirqreturn_t 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahc_linux_isr(int irq, void *dev_id, struct pt_regs * regs); 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_platform_flushwork(struct ahc_softc *ahc); 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ahc_softc_comp(struct ahc_softc *, struct ahc_softc *); 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_done(struct ahc_softc*, struct scb*); 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_send_async(struct ahc_softc *, char channel, 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_int target, u_int lun, ac_code, void *); 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_print_path(struct ahc_softc *, struct scb *); 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ahc_platform_dump_card_state(struct ahc_softc *ahc); 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHC_PCI_CONFIG 1 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHC_PCI_CONFIG 0 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define bootverbose aic7xxx_verbose 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern u_int aic7xxx_verbose; 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* _AIC7XXX_LINUX_H_ */ 987