aic79xx_osm.c revision 6d07cb71fdacc710fd9816cddb5c2df0f7bd96b4
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Adaptec AIC79xx device driver for Linux. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.c#171 $ 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -------------------------------------------------------------------------- 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 1994-2000 Justin T. Gibbs. 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 1997-1999 Doug Ledford 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2000-2003 Adaptec Inc. 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * All rights reserved. 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Redistribution and use in source and binary forms, with or without 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * modification, are permitted provided that the following conditions 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * are met: 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. Redistributions of source code must retain the above copyright 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * notice, this list of conditions, and the following disclaimer, 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * without modification. 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. Redistributions in binary form must reproduce at minimum a disclaimer 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * substantially similar to the "NO WARRANTY" disclaimer below 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ("Disclaimer") and any redistribution must be conditioned upon 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * including a substantially similar Disclaimer requirement for further 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * binary redistribution. 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. Neither the names of the above-listed copyright holders nor the names 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of any contributors may be used to endorse or promote products derived 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from this software without specific prior written permission. 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternatively, this software may be distributed under the terms of the 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License ("GPL") version 2 as published by the Free 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Software Foundation. 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NO WARRANTY 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * POSSIBILITY OF SUCH DAMAGES. 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "aic79xx_osm.h" 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "aic79xx_inline.h" 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsicam.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic struct scsi_transport_template *ahd_linux_transport_template = NULL; 5073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> /* __setup */ 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> /* For fetching system memory size */ 5373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#include <linux/blkdev.h> /* For block_size() */ 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> /* For ssleep/msleep */ 55017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik#include <linux/device.h> 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bucket size for counting good commands in between bad ones. 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHD_LINUX_ERR_THRESH 1000 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set this to the delay in seconds after SCSI bus reset. 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note, we honor this only for the initial bus reset. 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The scsi error recovery code performs its own bus settle 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * delay handling for error recovery actions. 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC79XX_RESET_DELAY_MS 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_RESET_DELAY CONFIG_AIC79XX_RESET_DELAY_MS 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_RESET_DELAY 5000 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * To change the default number of tagged transactions allowed per-device, 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add a line to the lilo.conf file like: 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * append="aic79xx=verbose,tag_info:{{32,32,32,32},{32,32,32,32}}" 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * which will result in the first four devices on the first two 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * controllers being set to a tagged queue depth of 32. 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The tag_commands is an array of 16 to allow for wide and twin adapters. 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Twin adapters will use indexes 0-7 for channel 0, and indexes 8-15 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for channel 1. 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct { 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint16_t tag_commands[16]; /* Allow for wide/twin adapters. */ 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} adapter_tag_info_t; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Modify this as you see fit for your system. 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 tagged queuing disabled 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 <= n <= 253 n == max tags ever dispatched. 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The driver will throttle the number of commands dispatched to a 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device if it returns queue full. For devices with a fixed maximum 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * queue depth, the driver will eventually determine this depth and 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * lock it in (a console message is printed to indicate that a lock 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has occurred). On some devices, queue full is returned for a temporary 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * resource shortage. These devices will return queue full at varying 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * depths. The driver will throttle back when the queue fulls occur and 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attempt to slowly increase the depth over time as the device recovers 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from the resource shortage. 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * In this example, the first line will disable tagged queueing for all 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the devices on the first probed aic79xx adapter. 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The second line enables tagged queueing with 4 commands/LUN for IDs 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (0, 2-11, 13-15), disables tagged queueing for ID 12, and tells the 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * driver to attempt to use up to 64 tags for ID 1. 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The third line is the same as the first line. 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The fourth line disables tagged queueing for devices 0 and 3. It 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * enables tagged queueing for the other IDs, with 16 commands/LUN 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for IDs 1 and 4, 127 commands/LUN for ID 8, and 4 commands/LUN for 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * IDs 2, 5-7, and 9-15. 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NOTE: The below structure is for reference only, the actual structure 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to modify in order to change things is just below this comment block. 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsadapter_tag_info_t aic79xx_tag_info[] = 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{4, 64, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 4, 4, 4}}, 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 16, 4, 0, 16, 4, 4, 4, 127, 4, 4, 4, 4, 4, 4, 4}} 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds*/ 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC79XX_CMDS_PER_DEVICE 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CMDS_PER_DEVICE CONFIG_AIC79XX_CMDS_PER_DEVICE 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CMDS_PER_DEVICE AHD_MAX_QUEUE 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CONFIGED_TAG_COMMANDS { \ 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE \ 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * By default, use the number of commands specified by 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the users kernel configuration. 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic adapter_tag_info_t aic79xx_tag_info[] = 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS} 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The I/O cell on the chip is very configurable in respect to its analog 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * characteristics. Set the defaults here; they can be overriden with 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the proper insmod parameters. 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahd_linux_iocell_opts 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t precomp; 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t slewrate; 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t amplitude; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_PRECOMP 0xFF 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_SLEWRATE 0xFF 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_AMPLITUDE 0xFF 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_IOOPTS \ 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_PRECOMP, \ 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_SLEWRATE, \ 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_AMPLITUDE \ 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_PRECOMP_INDEX 0 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_SLEWRATE_INDEX 1 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_AMPLITUDE_INDEX 2 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct ahd_linux_iocell_opts aic79xx_iocell_info[] = 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There should be a specific return value for this in scsi.h, but 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it seems that most drivers ignore it. 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DID_UNDERFLOW DID_ERROR 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_print_path(struct ahd_softc *ahd, struct scb *scb) 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("(scsi%d:%c:%d:%d): ", 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd->platform_data->host->host_no, 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_CHANNEL(ahd, scb) : 'X', 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_TARGET(ahd, scb) : -1, 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_LUN(scb) : -1); 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * XXX - these options apply unilaterally to _all_ adapters 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cards in the system. This should be fixed. Exceptions to this 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * rule are noted in the comments. 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Skip the scsi bus reset. Non 0 make us skip the reset at startup. This 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has no effect on any later resets that might occur due to things like 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * SCSI bus timeouts. 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_no_reset; 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should we force EXTENDED translation on a controller. 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 == Use whatever is in the SEEPROM or default to off 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 == Use whatever is in the SEEPROM or default to on 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_extended; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCI bus parity checking of the Adaptec controllers. This is somewhat 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * dubious at best. To my knowledge, this option has never actually 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * solved a PCI parity problem, but on certain machines with broken PCI 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * chipset configurations, it can generate tons of false error messages. 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It's included in the driver for completeness. 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 = Shut off PCI parity check 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * non-0 = Enable PCI parity check 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NOTE: you can't actually pass -1 on the lilo prompt. So, to set this 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * variable to -1 you would actually want to simply pass the variable 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * name without a number. That will invert the 0 which will result in 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -1. 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_pci_parity = ~0; 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There are lots of broken chipsets in the world. Some of them will 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * violate the PCI spec when we issue byte sized memory writes to our 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * controller. I/O mapped register access, if allowed by the given 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * platform, will work in almost all cases. 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsuint32_t aic79xx_allow_memio = ~0; 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * So that we can set how long each device is given as a selection timeout. 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The table of values goes like this: 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 - 256ms 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 - 128ms 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 - 64ms 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3 - 32ms 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We default to 256ms because some older devices need a longer time 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to respond to initial selection. 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_seltime; 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Certain devices do not perform any aging on commands. Should the 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device be saturated by commands in one portion of the disk, it is 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * possible for transactions on far away sectors to never be serviced. 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * To handle these devices, we can periodically send an ordered tag to 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * force all outstanding transactions to be serviced prior to a new 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * transaction. 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsuint32_t aic79xx_periodic_otag; 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2983fb086126462c2de06dddaec58981d8827be100dHannes Reinecke/* Some storage boxes are using an LSI chip which has a bug making it 2993fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * impossible to use aic79xx Rev B chip in 320 speeds. The following 3003fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * storage boxes have been reported to be buggy: 3013fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * EonStor 3U 16-Bay: U16U-G3A3 3023fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * EonStor 2U 12-Bay: U12U-G3A3 3033fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * SentinelRAID: 2500F R5 / R6 3043fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * SentinelRAID: 2500F R1 3053fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * SentinelRAID: 2500F/1500F 3063fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * SentinelRAID: 150F 3073fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * 3083fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * To get around this LSI bug, you can set your board to 160 mode 3093fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * or you can enable the SLOWCRC bit. 3103fb086126462c2de06dddaec58981d8827be100dHannes Reinecke */ 3113fb086126462c2de06dddaec58981d8827be100dHannes Reineckeuint32_t aic79xx_slowcrc; 3123fb086126462c2de06dddaec58981d8827be100dHannes Reinecke 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Module information and settable options. 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *aic79xx = NULL; 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("Maintainer: Justin T. Gibbs <gibbs@scsiguy.com>"); 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("Adaptec Aic790X U320 SCSI Host Bus Adapter driver"); 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("Dual BSD/GPL"); 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_VERSION(AIC79XX_DRIVER_VERSION); 32273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckemodule_param(aic79xx, charp, 0444); 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(aic79xx, 3242b6ee9b5295460017fc1bc3d60545512df280908Randy Dunlap"period-delimited options string:\n" 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" verbose Enable verbose/diagnostic logging\n" 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" allow_memio Allow device registers to be memory mapped\n" 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" debug Bitmask of debug values to enable\n" 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" no_reset Supress initial bus resets\n" 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" extended Enable extended geometry on all controllers\n" 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" periodic_otag Send an ordered tagged transaction\n" 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" periodically to prevent tag starvation.\n" 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" This may be required by some older disk\n" 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" or drives/RAID arrays.\n" 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" tag_info:<tag_str> Set per-target tag depth\n" 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" global_tag_depth:<int> Global tag depth for all targets on all buses\n" 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" slewrate:<slewrate_list>Set the signal slew rate (0-15).\n" 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" precomp:<pcomp_list> Set the signal precompensation (0-7).\n" 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" amplitude:<int> Set the signal amplitude (0-7).\n" 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" seltime:<int> Selection Timeout:\n" 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" (0/256ms,1/128ms,2/64ms,3/32ms)\n" 3413fb086126462c2de06dddaec58981d8827be100dHannes Reinecke" slowcrc Turn on the SLOWCRC bit (Rev B only)\n" 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds"\n" 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Sample /etc/modprobe.conf line:\n" 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Enable verbose logging\n" 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Set tag depth on Controller 2/Target 2 to 10 tags\n" 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Shorten the selection timeout to 128ms\n" 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds"\n" 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" options aic79xx 'aic79xx=verbose.tag_info:{{}.{}.{..10}}.seltime:1'\n" 3492b6ee9b5295460017fc1bc3d60545512df280908Randy Dunlap); 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_handle_scsi_status(struct ahd_softc *, 35273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_device *, 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scb *); 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, 35573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd); 3566902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reineckestatic int ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd); 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u_int ahd_linux_user_tagdepth(struct ahd_softc *ahd, 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_devinfo *devinfo); 36073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_device_queue_depth(struct scsi_device *); 36160a13213840296b1e32d6781653a0eaa83d04382Hannes Reineckestatic int ahd_linux_run_command(struct ahd_softc*, 36273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *, 36360a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke struct scsi_cmnd *); 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_setup_tag_info_global(char *p); 36573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int aic79xx_setup(char *c); 36685a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 36785a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwigstatic int ahd_linux_unit; 36885a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/****************************** Inlines ***************************************/ 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*); 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb) 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 37673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int direction; 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd = scb->io_ctx; 380be7db055dd7261522557046370f49160728e3847<hch@lst.de> direction = cmd->sc_data_direction; 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE); 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cmd->use_sg != 0) { 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scatterlist *sg; 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sg = (struct scatterlist *)cmd->request_buffer; 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unmap_sg(ahd->dev_softc, sg, cmd->use_sg, direction); 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (cmd->request_bufflen != 0) { 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unmap_single(ahd->dev_softc, 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb->platform_data->buf_busaddr, 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd->request_bufflen, direction); 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************** Macros **************************************/ 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUILD_SCSIID(ahd, cmd) \ 396422c0d61d591cbfb70f029e13505fb437e169d68Jeff Garzik (((scmd_id(cmd) << TID_SHIFT) & TID) | (ahd)->our_id) 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return a string describing the driver. 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const char * 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_info(struct Scsi_Host *host) 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static char buffer[512]; 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char ahd_info[256]; 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *bp; 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp = &buffer[0]; 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)host->hostdata; 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(bp, 0, sizeof(buffer)); 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev "); 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, AIC79XX_DRIVER_VERSION); 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, "\n"); 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, " <"); 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ahd->description); 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ">\n"); 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, " "); 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_controller_info(ahd, ahd_info); 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ahd_info); 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, "\n"); 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (bp); 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Queue an SCB to the controller. 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 43073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_queue(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *)) 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 43373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev = scsi_transport_device_data(cmd->device); 4344065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig int rtn = SCSI_MLQUEUE_HOST_BUSY; 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4387b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke cmd->scsi_done = scsi_done; 4397b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke cmd->result = CAM_REQ_INPROG << 16; 4407b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke rtn = ahd_linux_run_command(ahd, dev, cmd); 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4424065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig return rtn; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 44573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic inline struct scsi_target ** 44673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_in_softc(struct scsi_target *starget) 44773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 44873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 44973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata); 45073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int target_offset; 45173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 45273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_offset = starget->id; 45373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (starget->channel != 0) 45473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_offset += 8; 45573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 45673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return &ahd->platform_data->starget[target_offset]; 45773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 45873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 46073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_alloc(struct scsi_target *starget) 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 46273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 46373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata); 464986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke struct seeprom_config *sc = ahd->seep_config; 46573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 46673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget); 46773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 46873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 46973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 47073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char channel = starget->channel + 'A'; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 47273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 47373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 47473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(*ahd_targp != NULL); 47573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 47673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ahd_targp = starget; 47773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 478986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke if (sc) { 479986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke int flags = sc->device_flags[starget->id]; 480986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke 481986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 482986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke starget->id, &tstate); 483986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke 484986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke if ((flags & CFPACKETIZED) == 0) { 485986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke /* Do not negotiate packetized transfers */ 486986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_rd_strm(starget) = 0; 487986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_pcomp_en(starget) = 0; 488986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_rti(starget) = 0; 489986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_wr_flow(starget) = 0; 490986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_hold_mcs(starget) = 0; 491986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke } else { 492986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke if ((ahd->features & AHD_RTI) == 0) 493986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_rti(starget) = 0; 494986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke } 495986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke 496986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke if ((flags & CFQAS) == 0) 497986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_qas(starget) = 0; 498986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke 499986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke /* Transinfo values have been set to BIOS settings */ 500986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0; 501986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_min_period(starget) = tinfo->user.period; 502986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_max_offset(starget) = tinfo->user.offset; 503986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke } 504986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke 50573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, 50673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->id, &tstate); 50773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, ahd->our_id, starget->id, 50873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, channel, 50973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 51073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, 0, 0, 0, 51173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, /*paused*/FALSE); 51273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 51373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, /*paused*/FALSE); 51473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 51573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 51673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 51773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 51873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 51973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 52073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_destroy(struct scsi_target *starget) 52173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 52273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget); 52373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 52473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ahd_targp = NULL; 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 52873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_slave_alloc(struct scsi_device *sdev) 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 53073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 53173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)sdev->host->hostdata); 53273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bootverbose) 53573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: Slave Alloc %d\n", ahd_name(ahd), sdev->id); 53673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 53773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(sdev); 53873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(dev, 0, sizeof(*dev)); 53973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 54073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 54173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We start out life using untagged 54273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * transactions of which we allow one. 54373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 54473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 54573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 54773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Set maxtags to 0. This will be changed if we 54873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * later determine that we are dealing with 54973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * a tagged queuing capable device. 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 55173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = 0; 55273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 55673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 55773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_slave_configure(struct scsi_device *sdev) 55873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 55973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 56073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 56173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = *((struct ahd_softc **)sdev->host->hostdata); 56273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 563017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik sdev_printk(KERN_INFO, sdev, "Slave Configure\n"); 56473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 56573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_device_queue_depth(sdev); 56673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 56773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Initial Domain Validation */ 56873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!spi_initial_dv(sdev->sdev_target)) 56973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_dv_device(sdev); 57073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 57173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 57273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 57373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(__i386__) 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return the disk geometry for the given SCSI device. 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_biosparam(struct scsi_device *sdev, struct block_device *bdev, 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sector_t capacity, int geom[]) 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t *bh; 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int heads; 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sectors; 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cylinders; 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int extended; 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *((struct ahd_softc **)sdev->host->hostdata); 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bh = scsi_bios_ptable(bdev); 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bh) { 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = scsi_partsize(bh, capacity, 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &geom[2], &geom[0], &geom[1]); 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(bh); 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret != -1) 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ret); 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds heads = 64; 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sectors = 32; 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cylinders = aic_sector_div(capacity, heads, sectors); 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (aic79xx_extended != 0) 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extended = 1; 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extended = (ahd->flags & AHD_EXTENDED_TRANS_A) != 0; 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (extended && cylinders >= 1024) { 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds heads = 255; 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sectors = 63; 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cylinders = aic_sector_div(capacity, heads, sectors); 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[0] = heads; 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[1] = sectors; 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[2] = cylinders; 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Abort the current SCSI command(s). 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 62473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_abort(struct scsi_cmnd *cmd) 62573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 62673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int error; 6276902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 6286902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke error = ahd_linux_queue_abort_cmd(cmd); 62973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 63073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return error; 63173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 63273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 63373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 63473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Attempt to send a target reset message to the device that timed out. 63573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 63673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 63773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_dev_reset(struct scsi_cmnd *cmd) 63873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 6396902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct ahd_softc *ahd; 6406902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct ahd_linux_device *dev; 6416902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct scb *reset_scb; 6426902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke u_int cdb_byte; 6436902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int retval = SUCCESS; 6446902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int paused; 6456902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int wait; 6466902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 6476902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct ahd_tmode_tstate *tstate; 6486902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke unsigned long flags; 6496e9a4738c9fadb7cbdcabc1e3b415159f3741ed9Peter Zijlstra DECLARE_COMPLETION_ONSTACK(done); 65073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 6516902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb = NULL; 6526902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke paused = FALSE; 6536902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke wait = FALSE; 6546902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 6556902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 6566902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke scmd_printk(KERN_INFO, cmd, 6576902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke "Attempting to queue a TARGET RESET message:"); 6586902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 6596902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke printf("CDB:"); 6606902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++) 6616902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke printf(" 0x%x", cmd->cmnd[cdb_byte]); 6626902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke printf("\n"); 6636902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 6646902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke /* 6656902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke * Determine if we currently own this command. 6666902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke */ 6676902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke dev = scsi_transport_device_data(cmd->device); 6686902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 6696902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (dev == NULL) { 6706902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke /* 6716902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke * No target device for this command exists, 6726902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke * so we must not still own the command. 6736902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke */ 6746902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke scmd_printk(KERN_INFO, cmd, "Is not an active device\n"); 6756902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke return SUCCESS; 6766902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 6776902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 6786902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke /* 6796902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke * Generate us a new SCB 6806902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke */ 6816902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb = ahd_get_scb(ahd, AHD_NEVER_COL_IDX); 6826902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (!reset_scb) { 6836902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke scmd_printk(KERN_INFO, cmd, "No SCB available\n"); 6846902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke return FAILED; 6856902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 6866902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 6876902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 6886902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke cmd->device->id, &tstate); 6896902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->io_ctx = cmd; 6906902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->platform_data->dev = dev; 6916902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->sg_count = 0; 6926902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_set_residual(reset_scb, 0); 6936902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_set_sense_residual(reset_scb, 0); 6946902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->platform_data->xfer_len = 0; 6956902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->control = 0; 6966902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->scsiid = BUILD_SCSIID(ahd,cmd); 6976902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->lun = cmd->device->lun; 6986902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->cdb_len = 0; 6996902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->task_management = SIU_TASKMGMT_LUN_RESET; 7006902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->flags |= SCB_DEVICE_RESET|SCB_RECOVERY_SCB|SCB_ACTIVE; 7016902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 7026902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->flags |= SCB_PACKETIZED; 7036902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } else { 7046902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->control |= MK_MESSAGE; 7056902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 7066902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke dev->openings--; 7076902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke dev->active++; 7086902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke dev->commands_issued++; 7096902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 7106902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_lock(ahd, &flags); 7116902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 7126902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke LIST_INSERT_HEAD(&ahd->pending_scbs, reset_scb, pending_links); 7136902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_queue_scb(ahd, reset_scb); 7146902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 7156902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd->platform_data->eh_done = &done; 7166902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_unlock(ahd, &flags); 7176902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 7186902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke printf("%s: Device reset code sleeping\n", ahd_name(ahd)); 7196902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (!wait_for_completion_timeout(&done, 5 * HZ)) { 7206902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_lock(ahd, &flags); 7216902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd->platform_data->eh_done = NULL; 7226902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_unlock(ahd, &flags); 7236902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke printf("%s: Device reset timer expired (active %d)\n", 7246902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_name(ahd), dev->active); 7256902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke retval = FAILED; 7266902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 7276902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke printf("%s: Device reset returning 0x%x\n", ahd_name(ahd), retval); 7286902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 7296902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke return (retval); 73073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 73173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 73273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 73373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Reset the SCSI bus. 73473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 73573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 73673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_bus_reset(struct scsi_cmnd *cmd) 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 73973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int found; 740f41b5cec9bd6fec1b11b74500f5fb9c3e6e808b2Hannes Reinecke unsigned long flags; 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 74373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#ifdef AHD_DEBUG 74473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) 74573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: Bus reset called for cmd %p\n", 74673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd); 74773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 748f41b5cec9bd6fec1b11b74500f5fb9c3e6e808b2Hannes Reinecke ahd_lock(ahd, &flags); 749f41b5cec9bd6fec1b11b74500f5fb9c3e6e808b2Hannes Reinecke 750422c0d61d591cbfb70f029e13505fb437e169d68Jeff Garzik found = ahd_reset_channel(ahd, scmd_channel(cmd) + 'A', 75173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*initiate reset*/TRUE); 752f41b5cec9bd6fec1b11b74500f5fb9c3e6e808b2Hannes Reinecke ahd_unlock(ahd, &flags); 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 75473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 75573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: SCSI bus reset delivered. " 75673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke "%d SCBs aborted.\n", ahd_name(ahd), found); 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 75873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (SUCCESS); 75973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 76173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestruct scsi_host_template aic79xx_driver_template = { 76273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .module = THIS_MODULE, 76373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .name = "aic79xx", 76485a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig .proc_name = "aic79xx", 76573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .proc_info = ahd_linux_proc_info, 76673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .info = ahd_linux_info, 76773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .queuecommand = ahd_linux_queue, 76873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_abort_handler = ahd_linux_abort, 76973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_device_reset_handler = ahd_linux_dev_reset, 77073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_bus_reset_handler = ahd_linux_bus_reset, 77173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#if defined(__i386__) 77273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .bios_param = ahd_linux_biosparam, 77373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 77473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .can_queue = AHD_MAX_QUEUE, 77573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .this_id = -1, 77680f1443c66de3ec42e28d151bd43a80de398877eHannes Reinecke .max_sectors = 8192, 77773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .cmd_per_lun = 2, 77873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .use_clustering = ENABLE_CLUSTERING, 77973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .slave_alloc = ahd_linux_slave_alloc, 78073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .slave_configure = ahd_linux_slave_configure, 78173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .target_alloc = ahd_linux_target_alloc, 78273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .target_destroy = ahd_linux_target_destroy, 78373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke}; 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 78573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/******************************** Bus DMA *************************************/ 78673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 78773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dma_tag_create(struct ahd_softc *ahd, bus_dma_tag_t parent, 78873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t alignment, bus_size_t boundary, 78973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t lowaddr, dma_addr_t highaddr, 79073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_filter_t *filter, void *filterarg, 79173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t maxsize, int nsegments, 79273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t maxsegsz, int flags, bus_dma_tag_t *ret_tag) 79373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 79473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_tag_t dmat; 79573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 79673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat = malloc(sizeof(*dmat), M_DEVBUF, M_NOWAIT); 79773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dmat == NULL) 79873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 80173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Linux is very simplistic about DMA memory. For now don't 80273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * maintain all specification information. Once Linux supplies 80373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * better facilities for doing these operations, or the 80473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * needs of this particular driver change, we might need to do 80573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * more here. 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 80773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->alignment = alignment; 80873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->boundary = boundary; 80973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->maxsize = maxsize; 81073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ret_tag = dmat; 81173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 81273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 81473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 81573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dma_tag_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat) 81673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 81773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke free(dmat, M_DEVBUF); 81873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 82073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 82173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamem_alloc(struct ahd_softc *ahd, bus_dma_tag_t dmat, void** vaddr, 82273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int flags, bus_dmamap_t *mapp) 82373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 82473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *vaddr = pci_alloc_consistent(ahd->dev_softc, 82573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->maxsize, mapp); 82673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (*vaddr == NULL) 82773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 82873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return(0); 82973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 83173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 83273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamem_free(struct ahd_softc *ahd, bus_dma_tag_t dmat, 83373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void* vaddr, bus_dmamap_t map) 83473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 83573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pci_free_consistent(ahd->dev_softc, dmat->maxsize, 83673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke vaddr, map); 83773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 83873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 83973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 84073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map, 84173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *buf, bus_size_t buflen, bus_dmamap_callback_t *cb, 84273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *cb_arg, int flags) 84373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 84573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Assume for now that this will only be used during 84673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * initialization and not for per-transaction buffer mapping. 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 84873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_segment_t stack_sg; 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 85073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke stack_sg.ds_addr = map; 85173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke stack_sg.ds_len = dmat->maxsize; 85273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cb(cb_arg, &stack_sg, /*nseg*/1, /*error*/0); 85373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 85473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 85673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 85773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map) 85873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 85973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 86173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 86273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_unload(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map) 86373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 86473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Nothing to do */ 86573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 86673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 86873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/********************* Platform Dependent Functions ***************************/ 86973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 87073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_iocell_info(u_long index, int instance, int targ, int32_t value) 87173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 87373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((instance >= 0) 8746391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser && (instance < ARRAY_SIZE(aic79xx_iocell_info))) { 87573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint8_t *iocell_info; 87673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 87773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_info = (uint8_t*)&aic79xx_iocell_info[instance]; 87873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_info[index] = value & 0xFFFF; 87973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 88073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("iocell[%d:%ld] = %d\n", instance, index, value); 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 88273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 88473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 88573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_tag_info_global(char *p) 88673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 88773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int tags, i, j; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 88973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = simple_strtoul(p + 1, NULL, 0) & 0xff; 89073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Setting Global Tags= %d\n", tags); 89173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 8926391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(aic79xx_tag_info); i++) { 89373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (j = 0; j < AHD_NUM_TARGETS; j++) { 89473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke aic79xx_tag_info[i].tag_commands[j] = tags; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 90073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_tag_info(u_long arg, int instance, int targ, int32_t value) 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 90373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((instance >= 0) && (targ >= 0) 9046391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser && (instance < ARRAY_SIZE(aic79xx_tag_info)) 90573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (targ < AHD_NUM_TARGETS)) { 90673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke aic79xx_tag_info[instance].tag_commands[targ] = value & 0x1FF; 90773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 90873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("tag_info[%d:%d] = %d\n", instance, targ, value); 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9121ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwigstatic char * 9131ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwigahd_parse_brace_option(char *opt_name, char *opt_arg, char *end, int depth, 9141ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig void (*callback)(u_long, int, int, int32_t), 9151ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig u_long callback_arg) 9161ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig{ 9171ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig char *tok_end; 9181ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig char *tok_end2; 9191ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int i; 9201ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int instance; 9211ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int targ; 9221ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int done; 9231ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig char tok_list[] = {'.', ',', '{', '}', '\0'}; 9241ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig 9251ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig /* All options use a ':' name/arg separator */ 9261ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (*opt_arg != ':') 9271ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig return (opt_arg); 9281ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 9291ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance = -1; 9301ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ = -1; 9311ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = FALSE; 9321ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig /* 9331ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig * Restore separator that may be in 9341ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig * the middle of our option argument. 9351ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig */ 9361ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end = strchr(opt_arg, '\0'); 9371ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (tok_end < end) 9381ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig *tok_end = ','; 9391ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig while (!done) { 9401ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig switch (*opt_arg) { 9411ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '{': 9421ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (instance == -1) { 9431ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance = 0; 9441ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } else { 9451ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (depth > 1) { 9461ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (targ == -1) 9471ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ = 0; 9481ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } else { 9491ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig printf("Malformed Option %s\n", 9501ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_name); 9511ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = TRUE; 9521ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 9531ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 9541ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 9551ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 9561ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '}': 9571ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (targ != -1) 9581ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ = -1; 9591ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig else if (instance != -1) 9601ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance = -1; 9611ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 9621ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 9631ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case ',': 9641ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '.': 9651ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (instance == -1) 9661ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = TRUE; 9671ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig else if (targ >= 0) 9681ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ++; 9691ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig else if (instance >= 0) 9701ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance++; 9711ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 9721ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 9731ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '\0': 9741ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = TRUE; 9751ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 9761ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig default: 9771ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end = end; 9781ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig for (i = 0; tok_list[i]; i++) { 9791ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end2 = strchr(opt_arg, tok_list[i]); 9801ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if ((tok_end2) && (tok_end2 < tok_end)) 9811ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end = tok_end2; 9821ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 9831ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig callback(callback_arg, instance, targ, 9841ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig simple_strtol(opt_arg, NULL, 0)); 9851ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg = tok_end; 9861ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 9871ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 9881ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 9891ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig return (opt_arg); 9901ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig} 9911ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 99373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Handle Linux boot parameters. This routine allows for assigning a value 99473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to a parameter with a ':' between the parameter and the value. 99573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * ie. aic79xx=stpwlev:1,extended 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 99873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeaic79xx_setup(char *s) 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 100073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int i, n; 100173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *p; 100273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *end; 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 100473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke static struct { 100573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke const char *name; 100673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint32_t *flag; 100773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } options[] = { 100873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "extended", &aic79xx_extended }, 100973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "no_reset", &aic79xx_no_reset }, 101073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "verbose", &aic79xx_verbose }, 101173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "allow_memio", &aic79xx_allow_memio}, 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 101373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "debug", &ahd_debug }, 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 101573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "periodic_otag", &aic79xx_periodic_otag }, 101673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "pci_parity", &aic79xx_pci_parity }, 101773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "seltime", &aic79xx_seltime }, 101873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "tag_info", NULL }, 101973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "global_tag_depth", NULL}, 102073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "slewrate", NULL }, 102173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "precomp", NULL }, 102273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "amplitude", NULL }, 10233fb086126462c2de06dddaec58981d8827be100dHannes Reinecke { "slowcrc", &aic79xx_slowcrc }, 102473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke }; 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 102673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke end = strchr(s, '\0'); 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 102873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 10296391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser * XXX ia64 gcc isn't smart enough to know that ARRAY_SIZE 103073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * will never be 0 in this case. 10316391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser */ 10326391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser n = 0; 103373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 103473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke while ((p = strsep(&s, ",.")) != NULL) { 103573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (*p == '\0') 103673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke continue; 10376391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(options); i++) { 103873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 103973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke n = strlen(options[i].name); 104073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (strncmp(options[i].name, p, n) == 0) 104173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 104273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 10436391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser if (i == ARRAY_SIZE(options)) 104473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke continue; 104573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 104673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (strncmp(p, "global_tag_depth", n) == 0) { 104773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_setup_tag_info_global(p + n); 104873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "tag_info", n) == 0) { 10491ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("tag_info", p + n, end, 105073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2, ahd_linux_setup_tag_info, 0); 105173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "slewrate", n) == 0) { 10521ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("slewrate", 105373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 105473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_SLEWRATE_INDEX); 105573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "precomp", n) == 0) { 10561ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("precomp", 105773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 105873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_PRECOMP_INDEX); 105973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "amplitude", n) == 0) { 10601ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("amplitude", 106173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 106273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_AMPLITUDE_INDEX); 106373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (p[n] == ':') { 106473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) = simple_strtoul(p + n + 1, NULL, 0); 106573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (!strncmp(p, "verbose", n)) { 106673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) = 1; 106773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 106873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) ^= 0xFFFFFFFF; 106973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 107073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 107173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 1; 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 107473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke__setup("aic79xx=", aic79xx_setup); 107573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 107673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeuint32_t aic79xx_verbose; 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 107973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *template) 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 108173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char buf[80]; 108273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *host; 108373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *new_name; 108473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long s; 1085e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl int retval; 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 108773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke template->name = ahd->description; 108873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host = scsi_host_alloc(template, sizeof(struct ahd_softc *)); 108973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (host == NULL) 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ENOMEM); 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 109273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)host->hostdata) = ahd; 109373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->host = host; 109473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->can_queue = AHD_MAX_QUEUE; 109573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->cmd_per_lun = 2; 109673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->sg_tablesize = AHD_NSEG; 109773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->this_id = ahd->our_id; 109873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->irq = ahd->platform_data->irq; 109973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_id = (ahd->features & AHD_WIDE) ? 16 : 8; 110073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_lun = AHD_NUM_LUNS; 110173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_channel = 0; 110273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->sg_tablesize = AHD_NSEG; 1103eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_lock(ahd, &s); 110485a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig ahd_set_unit(ahd, ahd_linux_unit++); 1105eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_unlock(ahd, &s); 110673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sprintf(buf, "scsi%d", host->host_no); 110773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT); 110873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (new_name != NULL) { 110973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke strcpy(new_name, buf); 111073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_name(ahd, new_name); 111173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 111273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->unique_id = ahd->unit; 111373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_initialize_scsi_bus(ahd); 111473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_intr_enable(ahd, TRUE); 111573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 111673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->transportt = ahd_linux_transport_template; 111773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 1118e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl retval = scsi_add_host(host, &ahd->dev_softc->dev); 1119e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl if (retval) { 1120e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl printk(KERN_WARNING "aic79xx: scsi_add_host failed\n"); 1121e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl scsi_host_put(host); 1122e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl return retval; 1123e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl } 1124e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl 112573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_scan_host(host); 1126e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl return 0; 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 112973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeuint64_t 113073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_get_memsize(void) 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 113273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct sysinfo si; 113373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 113473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke si_meminfo(&si); 113573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return ((uint64_t)si.totalram << PAGE_SHIFT); 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 113873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 113973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Place the SCSI bus into a known state by either resetting it, 114073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * or forcing transfer negotiations on the next command to any 114173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * target. 114273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 114373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 114473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_initialize_scsi_bus(struct ahd_softc *ahd) 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 114673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int target_id; 114773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int numtarg; 1148eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke unsigned long s; 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 115073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_id = 0; 115173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke numtarg = 0; 115273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 115373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_no_reset != 0) 115473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->flags &= ~AHD_RESET_BUS_A; 115573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 115673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->flags & AHD_RESET_BUS_A) != 0) 115773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_reset_channel(ahd, 'A', /*initiate_reset*/TRUE); 115873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else 115973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke numtarg = (ahd->features & AHD_WIDE) ? 16 : 8; 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1161eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_lock(ahd, &s); 1162eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 116473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Force negotiation to async for all targets that 116573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * will not see an initial bus reset. 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 116773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (; target_id < numtarg; target_id++) { 116873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 116973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 117073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 117173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 117273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 117373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_id, &tstate); 117473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, ahd->our_id, target_id, 117573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, 'A', ROLE_INITIATOR); 117673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_update_neg_request(ahd, &devinfo, tstate, 117773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo, AHD_NEG_ALWAYS); 117873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 1179eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_unlock(ahd, &s); 118073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Give the bus some time to recover */ 118173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->flags & AHD_RESET_BUS_A) != 0) { 118273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_freeze_simq(ahd); 1183eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke msleep(AIC79XX_RESET_DELAY); 1184eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_release_simq(ahd); 118573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 118973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 119173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data = 119273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke malloc(sizeof(struct ahd_platform_data), M_DEVBUF, M_NOWAIT); 119373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data == NULL) 119473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 119573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(ahd->platform_data, 0, sizeof(struct ahd_platform_data)); 119673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->irq = AHD_LINUX_NOIRQ; 119773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lockinit(ahd); 119873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->seltime = (aic79xx_seltime & 0x3) << 4; 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 120273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 120373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_free(struct ahd_softc *ahd) 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 120573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget; 1206f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke int i; 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 120873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data != NULL) { 120973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* destroy all of the device and target objects */ 121073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < AHD_NUM_TARGETS; i++) { 121173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget = ahd->platform_data->starget[i]; 121273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (starget != NULL) { 121373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->starget[i] = NULL; 121473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 121573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 121773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->irq != AHD_LINUX_NOIRQ) 121873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke free_irq(ahd->platform_data->irq, ahd); 121973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[0] == BUS_SPACE_PIO 122073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[0].ioport != 0) 122173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_region(ahd->bshs[0].ioport, 256); 122273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[1] == BUS_SPACE_PIO 122373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[1].ioport != 0) 122473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_region(ahd->bshs[1].ioport, 256); 122573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[0] == BUS_SPACE_MEMIO 122673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[0].maddr != NULL) { 122773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iounmap(ahd->bshs[0].maddr); 122873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_mem_region(ahd->platform_data->mem_busaddr, 122973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 0x1000); 123073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 123197af50f60ff1202b0dd9ce481d4cf98c6a578becJames Bottomley if (ahd->platform_data->host) 123297af50f60ff1202b0dd9ce481d4cf98c6a578becJames Bottomley scsi_host_put(ahd->platform_data->host); 123397af50f60ff1202b0dd9ce481d4cf98c6a578becJames Bottomley 123473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke free(ahd->platform_data, M_DEVBUF); 123573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 123873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 123973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_init(struct ahd_softc *ahd) 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 124173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 124273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Lookup and commit any modified IO Cell options. 124373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 12446391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) { 124573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_iocell_opts *iocell_opts; 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 124773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_opts = &aic79xx_iocell_info[ahd->unit]; 124873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->precomp != AIC79XX_DEFAULT_PRECOMP) 124973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_PRECOMP(ahd, iocell_opts->precomp); 125073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->slewrate != AIC79XX_DEFAULT_SLEWRATE) 125173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_SLEWRATE(ahd, iocell_opts->slewrate); 125273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->amplitude != AIC79XX_DEFAULT_AMPLITUDE) 125373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_AMPLITUDE(ahd, iocell_opts->amplitude); 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 125873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 125973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb) 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 126173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_platform_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb), 126273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_GET_CHANNEL(ahd, scb), 126373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_GET_LUN(scb), SCB_LIST_NULL, 126473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_UNKNOWN, CAM_REQUEUE_REQ); 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 126773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 1268f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reineckeahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, 1269f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke struct ahd_devinfo *devinfo, ahd_queue_alg alg) 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 127173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 127273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int was_queuing; 127373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int now_queuing; 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 127573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (sdev == NULL) 127673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return; 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 127873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(sdev); 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 128073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev == NULL) 128173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return; 128273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke was_queuing = dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED); 128373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (alg) { 128473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 128573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_NONE: 128673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = 0; 128773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 128873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_BASIC: 128973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = AHD_DEV_Q_BASIC; 129073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 129173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_TAGGED: 129273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = AHD_DEV_Q_TAGGED; 129373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 129473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 129573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & AHD_DEV_FREEZE_TIL_EMPTY) == 0 129673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (was_queuing != now_queuing) 129773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (dev->active != 0)) { 129873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_FREEZE_TIL_EMPTY; 129973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->qfrozen++; 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 130273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags &= ~(AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED|AHD_DEV_PERIODIC_OTAG); 130373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (now_queuing) { 130473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int usertags; 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 130673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke usertags = ahd_linux_user_tagdepth(ahd, devinfo); 130773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!was_queuing) { 130873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 130973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Start out agressively and allow our 131073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * dynamic queue depth algorithm to take 131173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * care of the rest. 131273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 131373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = usertags; 131473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = dev->maxtags - dev->active; 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 131673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->maxtags == 0) { 131773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 131873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Queueing is disabled by the user. 131973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 132073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 132173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (alg == AHD_QUEUE_TAGGED) { 132273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_Q_TAGGED; 132373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_periodic_otag != 0) 132473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_PERIODIC_OTAG; 132573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else 132673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_Q_BASIC; 132773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 132873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* We can only have one opening. */ 132973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = 0; 133073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1 - dev->active; 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 133373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { 133473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_DEV_Q_BASIC: 13350aa800db8f1927aefe6f0ba6ce9d70f044374aefHannes Reinecke scsi_set_tag_type(sdev, MSG_SIMPLE_TASK); 13360aa800db8f1927aefe6f0ba6ce9d70f044374aefHannes Reinecke scsi_activate_tcq(sdev, dev->openings + dev->active); 133773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 133873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_DEV_Q_TAGGED: 13390aa800db8f1927aefe6f0ba6ce9d70f044374aefHannes Reinecke scsi_set_tag_type(sdev, MSG_ORDERED_TASK); 13400aa800db8f1927aefe6f0ba6ce9d70f044374aefHannes Reinecke scsi_activate_tcq(sdev, dev->openings + dev->active); 134173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 134273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 134473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We allow the OS to queue 2 untagged transactions to 134573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * us at any time even though we can only execute them 134673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * serially on the controller/device. This should 134773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * remove some latency. 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13490aa800db8f1927aefe6f0ba6ce9d70f044374aefHannes Reinecke scsi_deactivate_tcq(sdev, 1); 135073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 135473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 135573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_abort_scbs(struct ahd_softc *ahd, int target, char channel, 135673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int lun, u_int tag, role_t role, uint32_t status) 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 135873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 136173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic u_int 136273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_user_tagdepth(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 136473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke static int warned_user; 136573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int tags; 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 136773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = 0; 136873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->user_discenable & devinfo->target_mask) != 0) { 13696391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser if (ahd->unit >= ARRAY_SIZE(aic79xx_tag_info)) { 137073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 137173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (warned_user == 0) { 137273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf(KERN_WARNING 137373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: WARNING: Insufficient tag_info instances\n" 137473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: for installed controllers. Using defaults\n" 137573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: Please update the aic79xx_tag_info array in\n" 137673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: the aic79xx_osm.c source file.\n"); 137773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke warned_user++; 137873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 137973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = AHD_MAX_QUEUE; 138073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 138173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke adapter_tag_info_t *tag_info; 138273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 138373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tag_info = &aic79xx_tag_info[ahd->unit]; 138473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = tag_info->tag_commands[devinfo->target_offset]; 138573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tags > AHD_MAX_QUEUE) 138673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = AHD_MAX_QUEUE; 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 138973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (tags); 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 139373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Determines the queue depth for a given device. 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 139673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_device_queue_depth(struct scsi_device *sdev) 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 139873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 139973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int tags; 140073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)sdev->host->hostdata); 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 140273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, 140373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->our_id, 140473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->id, sdev->lun, 140573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->channel == 0 ? 'A' : 'B', 140673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 140773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = ahd_linux_user_tagdepth(ahd, &devinfo); 140873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tags != 0 && sdev->tagged_supported != 0) { 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1410f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_TAGGED); 1411f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_send_async(ahd, devinfo.channel, devinfo.target, 1412f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke devinfo.lun, AC_TRANSFER_NEG); 141373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_devinfo(ahd, &devinfo); 141473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Tagged Queuing enabled. Depth %d\n", tags); 141573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 1416f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_NONE); 1417f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_send_async(ahd, devinfo.channel, devinfo.target, 1418f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke devinfo.lun, AC_TRANSFER_NEG); 141973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 142073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 142273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 142373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, 142473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd) 142573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 142673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *scb; 142773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct hardware_scb *hscb; 142873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 142973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 143073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int col_idx; 143173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint16_t mask; 14327b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke unsigned long flags; 14337b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke 14347b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_lock(ahd, &flags); 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 143773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Get an scb to use. 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 143973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 144073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->id, &tstate); 144173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) == 0 144273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 144373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke col_idx = AHD_NEVER_COL_IDX; 144473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 144573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke col_idx = AHD_BUILD_COL_IDX(cmd->device->id, 144673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun); 144773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 144873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 144973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->flags |= AHD_RESOURCE_SHORTAGE; 14507b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_unlock(ahd, &flags); 145173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return SCSI_MLQUEUE_HOST_BUSY; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 145473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->io_ctx = cmd; 145573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->dev = dev; 145673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb = scb->hscb; 145773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->host_scribble = (char *)scb; 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 145973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 146073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Fill out basics of the HSCB. 146173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 146273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control = 0; 146373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->scsiid = BUILD_SCSIID(ahd, cmd); 146473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->lun = cmd->device->lun; 146573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->hscb->task_management = 0; 146673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke mask = SCB_GET_TARGET_MASK(ahd, scb); 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 146873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->user_discenable & mask) != 0) 146973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= DISCENB; 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 147173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) 147273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_PACKETIZED; 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 147473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((tstate->auto_negotiate & mask) != 0) { 147573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_AUTO_NEGOTIATE; 147673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->hscb->control |= MK_MESSAGE; 147773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 147873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 147973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) { 148073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int msg_bytes; 148173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint8_t tag_msgs[2]; 148273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 148373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke msg_bytes = scsi_populate_tag_msg(cmd, tag_msgs); 148473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (msg_bytes && tag_msgs[0] != MSG_SIMPLE_TASK) { 148573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= tag_msgs[0]; 148673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tag_msgs[0] == MSG_ORDERED_TASK) 148773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 148873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else 148973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->commands_since_idle_or_otag == AHD_OTAG_THRESH 149073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (dev->flags & AHD_DEV_Q_TAGGED) != 0) { 149173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= MSG_ORDERED_TASK; 149273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 149373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 149473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= MSG_SIMPLE_TASK; 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 149673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 149873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->cdb_len = cmd->cmd_len; 149973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memcpy(hscb->shared_data.idata.cdb, cmd->cmnd, hscb->cdb_len); 150073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 150173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = 0; 150273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_residual(scb, 0); 150373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_sense_residual(scb, 0); 150473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->sg_count = 0; 150573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (cmd->use_sg != 0) { 150673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *sg; 150773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scatterlist *cur_seg; 150873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int nseg; 150973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int dir; 151073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 151173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cur_seg = (struct scatterlist *)cmd->request_buffer; 151273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dir = cmd->sc_data_direction; 151373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke nseg = pci_map_sg(ahd->dev_softc, cur_seg, 151473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->use_sg, dir); 151573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = 0; 151673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (sg = scb->sg_list; nseg > 0; nseg--, cur_seg++) { 151773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t addr; 151873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t len; 151973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 152073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke addr = sg_dma_address(cur_seg); 152173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke len = sg_dma_len(cur_seg); 152273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len += len; 152373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sg = ahd_sg_setup(ahd, scb, sg, addr, len, 152473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*last*/nseg == 1); 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 152673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (cmd->request_bufflen != 0) { 152773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *sg; 152873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t addr; 152973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int dir; 153073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 153173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sg = scb->sg_list; 153273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dir = cmd->sc_data_direction; 153373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke addr = pci_map_single(ahd->dev_softc, 153473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->request_buffer, 153573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->request_bufflen, dir); 153673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = cmd->request_bufflen; 153773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->buf_busaddr = addr; 153873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sg = ahd_sg_setup(ahd, scb, sg, addr, 153973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->request_bufflen, /*last*/TRUE); 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 154173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 154273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 154373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings--; 154473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active++; 154573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_issued++; 154673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 154773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & AHD_DEV_PERIODIC_OTAG) != 0) 154873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag++; 154973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_ACTIVE; 155073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_queue_scb(ahd, scb); 155173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 15527b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_unlock(ahd, &flags); 15537b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke 155473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 155773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 155873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * SCSI controller interrupt handler. 155973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 156073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeirqreturn_t 15617d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsahd_linux_isr(int irq, void *dev_id) 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 156373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 156473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long flags; 156573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int ours; 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 156773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = (struct ahd_softc *) dev_id; 156873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 156973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ours = ahd_intr(ahd); 157073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 157173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return IRQ_RETVAL(ours); 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 157573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_send_async(struct ahd_softc *ahd, char channel, 1576f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke u_int target, u_int lun, ac_code code) 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 157873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (code) { 157973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_TRANSFER_NEG: 158073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 158173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char buf[80]; 158273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget; 158373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct info_str info; 158473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 158573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 158673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int target_ppr_options; 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 158873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(target == CAM_TARGET_WILDCARD); 158973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 159073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.buffer = buf; 159173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.length = sizeof(buf); 159273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.offset = 0; 159373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.pos = 0; 159473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, 159573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target, &tstate); 159673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 159773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 159873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Don't bother reporting results while 159973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * negotiations are still pending. 160073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 160173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tinfo->curr.period != tinfo->goal.period 160273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.width != tinfo->goal.width 160373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.offset != tinfo->goal.offset 160473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.ppr_options != tinfo->goal.ppr_options) 160573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose == 0) 160673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 160773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 160873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 160973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Don't bother reporting results that 161073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * are identical to those last reported. 161173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 161273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget = ahd->platform_data->starget[target]; 1613fc789a93994858b5e5a46afb96d0dcf6cc1b6f08James Bottomley if (starget == NULL) 161473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 161573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 161673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_ppr_options = 161773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0) 161873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke + (spi_qas(starget) ? MSG_EXT_PPR_QAS_REQ : 0) 16193f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_iu(starget) ? MSG_EXT_PPR_IU_REQ : 0) 16203f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_rd_strm(starget) ? MSG_EXT_PPR_RD_STRM : 0) 16213f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_pcomp_en(starget) ? MSG_EXT_PPR_PCOMP_EN : 0) 16223f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_rti(starget) ? MSG_EXT_PPR_RTI : 0) 162388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley + (spi_wr_flow(starget) ? MSG_EXT_PPR_WR_FLOW : 0) 162488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley + (spi_hold_mcs(starget) ? MSG_EXT_PPR_HOLD_MCS : 0); 162573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 162673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tinfo->curr.period == spi_period(starget) 162773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.width == spi_width(starget) 162873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.offset == spi_offset(starget) 162973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.ppr_options == target_ppr_options) 163073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose == 0) 163173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 163273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 163373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_period(starget) = tinfo->curr.period; 163473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_width(starget) = tinfo->curr.width; 163573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_offset(starget) = tinfo->curr.offset; 1636a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ ? 1 : 0; 1637a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ ? 1 : 0; 1638a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ ? 1 : 0; 16393f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_rd_strm(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RD_STRM ? 1 : 0; 16403f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_pcomp_en(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_PCOMP_EN ? 1 : 0; 16413f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_rti(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RTI ? 1 : 0; 16423f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_wr_flow(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_WR_FLOW ? 1 : 0; 164388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley spi_hold_mcs(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_HOLD_MCS ? 1 : 0; 164473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_display_xfer_agreement(starget); 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 164673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 164773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_SENT_BDR: 164873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 164973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke WARN_ON(lun != CAM_LUN_WILDCARD); 165073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_report_device_reset(ahd->platform_data->host, 165173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke channel - 'A', target); 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 165473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_BUS_RESET: 165573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->host != NULL) { 165673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_report_bus_reset(ahd->platform_data->host, 165773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke channel - 'A'); 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 165973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 166073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 166173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke panic("ahd_send_async: Unexpected async event"); 166273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 166573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 166673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Calls the higher level scsi done function and frees the scb. 166773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 166873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 166973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_done(struct ahd_softc *ahd, struct scb *scb) 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 167173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 167273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 167473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_ACTIVE) == 0) { 167573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("SCB %d done'd twice\n", SCB_GET_TAG(scb)); 167673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_dump_card_state(ahd); 167773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke panic("Stopping for safety"); 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 167973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_REMOVE(scb, pending_links); 168073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd = scb->io_ctx; 168173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scb->platform_data->dev; 168273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active--; 168373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings++; 168473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) { 168573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->result &= ~(CAM_DEV_QFRZN << 16); 168673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->qfrozen--; 168773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 168873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_unmap_scb(ahd, scb); 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 169173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Guard against stale sense data. 169273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * The Linux mid-layer assumes that sense 169373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * was retrieved anytime the first byte of 169473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the sense buffer looks "sane". 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 169673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->sense_buffer[0] = 0; 169773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_get_transaction_status(scb) == CAM_REQ_INPROG) { 169873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint32_t amount_xferred; 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 170073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke amount_xferred = 170173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_transfer_length(scb) - ahd_get_residual(scb); 170273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_TRANSMISSION_ERROR) != 0) { 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 170473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_MISC) != 0) { 170573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 170673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Set CAM_UNCOR_PARITY\n"); 170773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 170973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_UNCOR_PARITY); 171073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#ifdef AHD_REPORT_UNDERFLOWS 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 171273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * This code is disabled by default as some 171373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * clients of the SCSI system do not properly 171473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * initialize the underflow parameter. This 171573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * results in spurious termination of commands 171673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * that complete as expected (e.g. underflow is 171773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * allowed as command can return variable amounts 171873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * of data. 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 172073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (amount_xferred < scb->io_ctx->underflow) { 172173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int i; 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 172373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 172473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("CDB:"); 172573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < scb->io_ctx->cmd_len; i++) 172673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf(" 0x%x", scb->io_ctx->cmnd[i]); 172773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("\n"); 172873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 172973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Saw underflow (%ld of %ld bytes). " 173073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke "Treated as error\n", 173173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_residual(scb), 173273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_transfer_length(scb)); 173373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_DATA_RUN_ERR); 173473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 173573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 173673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_REQ_CMP); 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 173873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (ahd_get_transaction_status(scb) == CAM_SCSI_STATUS_ERROR) { 173973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_handle_scsi_status(ahd, cmd->device, scb); 174073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 174273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->openings == 1 174373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_get_transaction_status(scb) == CAM_REQ_CMP 174473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_get_scsi_status(scb) != SCSI_STATUS_QUEUE_FULL) 174573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count++; 174673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 174773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Some devices deal with temporary internal resource 174873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * shortages by returning queue full. When the queue 174973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * full occurrs, we throttle back. Slowly try to get 175073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * back to our previous queue depth. 175173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 175273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->openings + dev->active) < dev->maxtags 175373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && dev->tag_success_count > AHD_TAG_SUCCESS_INTERVAL) { 175473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count = 0; 175573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings++; 175673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 175873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active == 0) 175973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 176173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 176273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Recovery SCB completes\n"); 176373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_get_transaction_status(scb) == CAM_BDR_SENT 176473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || ahd_get_transaction_status(scb) == CAM_REQ_ABORTED) 176573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT); 17667b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke 17677b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke if (ahd->platform_data->eh_done) 17687b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke complete(ahd->platform_data->eh_done); 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 177073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 177173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_free_scb(ahd, scb); 177273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_queue_cmd_complete(ahd, cmd); 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 177673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_handle_scsi_status(struct ahd_softc *ahd, 177773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_device *sdev, struct scb *scb) 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 177973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 178073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev = scsi_transport_device_data(sdev); 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 178273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, 178373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->our_id, 178473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->id, sdev->lun, 178573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->channel == 0 ? 'A' : 'B', 178673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 178773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 178873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 178973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We don't currently trust the mid-layer to 179073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * properly deal with queue full or busy. So, 179173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * when one occurs, we tell the mid-layer to 179273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * unconditionally requeue the command to us 179373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so that we can retry it ourselves. We also 179473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * implement our own throttling mechanism so 179573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * we don't clobber the device with too many 179673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * commands. 179773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 179873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (ahd_get_scsi_status(scb)) { 179973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 180073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 180173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_CHECK_COND: 180273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_CMD_TERMINATED: 180373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 180473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 180773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Copy sense information to the OS's cmd 180873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * structure if it is available. 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 181073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd = scb->io_ctx; 181173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & (SCB_SENSE|SCB_PKT_SENSE)) != 0) { 181273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_status_iu_header *siu; 181373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int sense_size; 181473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int sense_offset; 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 181673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (scb->flags & SCB_SENSE) { 18176d07cb71fdacc710fd9816cddb5c2df0f7bd96b4Amol Lad sense_size = min(sizeof(struct scsi_sense_data) 181873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_sense_residual(scb), 18196d07cb71fdacc710fd9816cddb5c2df0f7bd96b4Amol Lad (u_long)sizeof(cmd->sense_buffer)); 182073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_offset = 0; 182173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 182273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 182373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Copy only the sense data into the provided 182473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * buffer. 182573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 182673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke siu = (struct scsi_status_iu_header *) 182773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->sense_data; 18286d07cb71fdacc710fd9816cddb5c2df0f7bd96b4Amol Lad sense_size = min_t(size_t, 18296d07cb71fdacc710fd9816cddb5c2df0f7bd96b4Amol Lad scsi_4btoul(siu->sense_length), 183073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(cmd->sense_buffer)); 183173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_offset = SIU_SENSE_OFFSET(siu); 183273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 183473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer)); 183573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memcpy(cmd->sense_buffer, 183673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_sense_buf(ahd, scb) 183773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke + sense_offset, sense_size); 183873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->result |= (DRIVER_SENSE << 24); 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 184173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_debug & AHD_SHOW_SENSE) { 184273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int i; 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 184473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Copied %d bytes of sense data at %d:", 184573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_size, sense_offset); 184673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < sense_size; i++) { 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i & 0xF) == 0) 184873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("\n"); 184973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("0x%x ", cmd->sense_buffer[i]); 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printf("\n"); 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 185673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 185773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_QUEUE_FULL: 185873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 185973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * By the time the core driver has returned this 186073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * command, all other commands that were queued 186173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to us but not the device have been returned. 186273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * This ensures that dev->active is equal to 186373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the number of commands actually queued to 186473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the device. 186573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 186673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count = 0; 186773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active != 0) { 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 186973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Drop our opening count to the number 187073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * of commands currently outstanding. 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 187273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 0; 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 187473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_QFULL) != 0) { 187573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 187673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Dropping tag count to %d\n", 187773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active); 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 188073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active == dev->tags_on_last_queuefull) { 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 188273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->last_queuefull_same_count++; 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 188473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * If we repeatedly see a queue full 188573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * at the same queue depth, this 188673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * device has a fixed number of tag 188773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * slots. Lock in this tag depth 188873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we stop seeing queue fulls from 188973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * this device. 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 189173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->last_queuefull_same_count 189273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke == AHD_LOCK_TAGS_COUNT) { 189373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = dev->active; 189473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 189573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Locking max tag count at %d\n", 189673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active); 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 189873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 189973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tags_on_last_queuefull = dev->active; 190073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->last_queuefull_same_count = 0; 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 190273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_REQUEUE_REQ); 190373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scsi_status(scb, SCSI_STATUS_OK); 1904f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_platform_set_tags(ahd, sdev, &devinfo, 190573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (dev->flags & AHD_DEV_Q_BASIC) 190673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED); 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 191073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Drop down to a single opening, and treat this 191173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * as if the target returned BUSY SCSI status. 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 191373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 1914f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_platform_set_tags(ahd, sdev, &devinfo, 191573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (dev->flags & AHD_DEV_Q_BASIC) 191673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED); 191773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scsi_status(scb, SCSI_STATUS_BUSY); 191873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 192173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 192273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd) 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19246902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int status; 19256902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int new_status = DID_OK; 19266902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int do_fallback = 0; 19276902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int scsi_status; 19286902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 193073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Map CAM error codes into Linux Error codes. We 193173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * avoid the conversion so that the DV code has the 193273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * full error information available when making 193373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * state change decisions. 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 19356902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 19366902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke status = ahd_cmd_get_transaction_status(cmd); 19376902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke switch (status) { 19386902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_INPROG: 19396902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_CMP: 19406902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_OK; 19416902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 19426902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_AUTOSENSE_FAIL: 19436902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_ERROR; 19446902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke /* Fallthrough */ 19456902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_SCSI_STATUS_ERROR: 19466902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke scsi_status = ahd_cmd_get_scsi_status(cmd); 19476902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 19486902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke switch(scsi_status) { 19496902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case SCSI_STATUS_CMD_TERMINATED: 19506902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case SCSI_STATUS_CHECK_COND: 19516902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if ((cmd->result >> 24) != DRIVER_SENSE) { 19526902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke do_fallback = 1; 19536902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } else { 19546902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct scsi_sense_data *sense; 19556902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 19566902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke sense = (struct scsi_sense_data *) 19576902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke &cmd->sense_buffer; 19586902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (sense->extra_len >= 5 && 19596902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke (sense->add_sense_code == 0x47 19606902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke || sense->add_sense_code == 0x48)) 19616902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke do_fallback = 1; 19626902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 196373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 196473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 196573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 196673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 19676902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 19686902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_ABORTED: 19696902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_ABORT; 19706902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 19716902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_BUSY: 19726902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_BUS_BUSY; 19736902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 19746902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_INVALID: 19756902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_PATH_INVALID: 19766902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_BAD_TARGET; 19776902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 19786902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_SEL_TIMEOUT: 19796902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_NO_CONNECT; 19806902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 19816902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_SCSI_BUS_RESET: 19826902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_BDR_SENT: 19836902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_RESET; 19846902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 19856902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_UNCOR_PARITY: 19866902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_PARITY; 19876902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke do_fallback = 1; 19886902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 19896902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_CMD_TIMEOUT: 19906902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_TIME_OUT; 19916902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke do_fallback = 1; 19926902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 19936902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_CMP_ERR: 19946902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_UNEXP_BUSFREE: 19956902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_DATA_RUN_ERR: 19966902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_ERROR; 19976902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke do_fallback = 1; 19986902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 19996902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_UA_ABORT: 20006902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_NO_HBA: 20016902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_SEQUENCE_FAIL: 20026902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_CCB_LEN_ERR: 20036902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_PROVIDE_FAIL: 20046902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_TERMIO: 20056902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_UNREC_HBA_ERROR: 20066902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_TOO_BIG: 20076902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_ERROR; 20086902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 20096902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQUEUE_REQ: 20106902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_REQUEUE; 20116902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 20126902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke default: 20136902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke /* We should never get here */ 20146902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_ERROR; 20156902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 20166902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 201773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 20186902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (do_fallback) { 20196902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke printf("%s: device overrun (status %x) on %d:%d:%d\n", 20206902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_name(ahd), status, cmd->device->channel, 20216902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke cmd->device->id, cmd->device->lun); 202273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 202373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 20246902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_cmd_set_transaction_status(cmd, new_status); 20256902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 202673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->scsi_done(cmd); 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 203073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_freeze_simq(struct ahd_softc *ahd) 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20327b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke scsi_block_requests(ahd->platform_data->host); 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 203673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_release_simq(struct ahd_softc *ahd) 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20387b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke scsi_unblock_requests(ahd->platform_data->host); 203973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 20401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 204173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 20426902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reineckeahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd) 204373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 204473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 204573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 204673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *pending_scb; 204773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int saved_scbptr; 204873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int active_scbptr; 204973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int last_phase; 205073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int saved_scsiid; 205173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int cdb_byte; 205273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int retval; 205373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int was_paused; 205473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int paused; 205573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int wait; 205673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int disconnected; 205773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_mode_state saved_modes; 20584065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig unsigned long flags; 205973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 206073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb = NULL; 206173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke paused = FALSE; 206273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = FALSE; 206373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 206473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2065017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, 20666902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke "Attempting to queue an ABORT message:"); 206773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 206873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("CDB:"); 206973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++) 207073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf(" 0x%x", cmd->cmnd[cdb_byte]); 207173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("\n"); 207273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 20734065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig ahd_lock(ahd, &flags); 20741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 207673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * First determine if we currently own this command. 207773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Start by searching the device queue. If not found 207873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * there, check the pending_scb list. If not found 207973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * at all, and the system wanted us to just abort the 208073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * command, return success. 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 208273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(cmd->device); 208373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 208473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev == NULL) { 208573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 208673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * No target device for this command exists, 208773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we must not still own the command. 208873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 2089017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Is not an active device\n"); 209073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = SUCCESS; 209173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 209273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 209573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * See if we can find a matching cmd in the pending list. 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 209773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) { 209873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (pending_scb->io_ctx == cmd) 209973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 210273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (pending_scb == NULL) { 2103017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Command not found\n"); 210473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 21051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 210773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_RECOVERY_SCB) != 0) { 210873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 210973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We can't queue two recovery actions using the same SCB 211073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 211173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 211273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto done; 211373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 21141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 211673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Ensure that the card doesn't do anything 211773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * behind our back. Also make sure that we 211873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * didn't "just" miss an interrupt that would 211973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * affect this cmd. 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 212173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke was_paused = ahd_is_paused(ahd); 212273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_pause_and_flushwork(ahd); 212373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke paused = TRUE; 21241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 212573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_ACTIVE) == 0) { 2126017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Command already completed\n"); 212773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 212873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 21291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 213073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: At time of recovery, card was %spaused\n", 213173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), was_paused ? "" : "not "); 213273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_dump_card_state(ahd); 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 213473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = TRUE; 21356902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (ahd_search_qinfifo(ahd, cmd->device->id, 21366902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke cmd->device->channel + 'A', 21376902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke cmd->device->lun, 21386902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke pending_scb->hscb->tag, 21396902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ROLE_INITIATOR, CAM_REQ_ABORTED, 21406902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke SEARCH_COMPLETE) > 0) { 21416902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke printf("%s:%d:%d:%d: Cmd aborted from QINFIFO\n", 21426902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_name(ahd), cmd->device->channel, 21436902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke cmd->device->id, cmd->device->lun); 21446902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke retval = SUCCESS; 21456902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke goto done; 214673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 21471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 214873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_modes = ahd_save_modes(ahd); 214973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); 215073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke last_phase = ahd_inb(ahd, LASTPHASE); 215173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_scbptr = ahd_get_scbptr(ahd); 215273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke active_scbptr = saved_scbptr; 21536902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (disconnected && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) { 215473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *bus_scb; 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 215673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_scb = ahd_lookup_scb(ahd, active_scbptr); 215773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bus_scb == pending_scb) 215873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = FALSE; 21591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 216073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 216173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 216273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * At this point, pending_scb is the scb associated with the 216373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * passed in command. That command is currently active on the 216473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * bus or is in the disconnected state. 216573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 216673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_scsiid = ahd_inb(ahd, SAVED_SCSIID); 21676902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (last_phase != P_BUSFREE 21686902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke && SCB_GET_TAG(pending_scb) == active_scbptr) { 216973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 217173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We're active on the bus, so assert ATN 217273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * and hope that the target responds. 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 217473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb = ahd_lookup_scb(ahd, active_scbptr); 21756902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT; 217673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, MSG_OUT, HOST_MSG); 217773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCSISIGO, last_phase|ATNO); 21786902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke scmd_printk(KERN_INFO, cmd, "Device is active, asserting ATN\n"); 217973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = TRUE; 218073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (disconnected) { 218173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 218273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 218373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Actually re-queue this SCB in an attempt 218473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to select the device before it reconnects. 218573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 21866902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT; 218773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scbptr(ahd, SCB_GET_TAG(pending_scb)); 218873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->cdb_len = 0; 218973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_attribute = 0; 219073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_management = SIU_TASKMGMT_ABORT_TASK; 219173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 219273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_PACKETIZED) != 0) { 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 219473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Mark the SCB has having an outstanding 219573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * task management function. Should the command 219673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * complete normally before the task management 219773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * function can be sent, the host will be notified 219873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to abort our requeued SCB. 21991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 220073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCB_TASK_MANAGEMENT, 220173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_management); 220273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 220373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 220473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * If non-packetized, set the MK_MESSAGE control 220573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * bit indicating that we desire to send a message. 220673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We also set the disconnected flag since there is 220773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * no guarantee that our SCB control byte matches 220873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the version on the card. We don't want the 220973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * sequencer to abort the command thinking an 221073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * unsolicited reselection occurred. 221173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 221273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->control |= MK_MESSAGE|DISCONNECTED; 221373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 221473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 221573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * The sequencer will never re-reference the 221673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * in-core SCB. To make sure we are notified 221773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * during reslection, set the MK_MESSAGE flag in 221873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the card's copy of the SCB. 221973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 222073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCB_CONTROL, 222173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_inb(ahd, SCB_CONTROL)|MK_MESSAGE); 22221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 222373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 222573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Clear out any entries in the QINFIFO first 222673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we are the next SCB for this target 222773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to run. 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 222973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_search_qinfifo(ahd, cmd->device->id, 223073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->channel + 'A', cmd->device->lun, 223173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_LIST_NULL, ROLE_INITIATOR, 223273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_REQUEUE_REQ, SEARCH_COMPLETE); 223373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_qinfifo_requeue_tail(ahd, pending_scb); 223473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scbptr(ahd, saved_scbptr); 223573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, pending_scb); 223673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Device is disconnected, re-queuing SCB\n"); 223773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = TRUE; 223873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 2239017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Unable to deliver message\n"); 224073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 224173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto done; 22421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 224473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeno_cmd: 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 224673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Our assumption is that if we don't have the command, no 224773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * recovery action was required, so we return success. Again, 224873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the semantics of the mid-layer recovery engine are not 224973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * well defined, so this may change in time. 22501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 225173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = SUCCESS; 225273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckedone: 225373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (paused) 225473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unpause(ahd); 225573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (wait) { 22566e9a4738c9fadb7cbdcabc1e3b415159f3741ed9Peter Zijlstra DECLARE_COMPLETION_ONSTACK(done); 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22587b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd->platform_data->eh_done = &done; 22594065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig ahd_unlock(ahd, &flags); 22604065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig 226111668bb673c41ec169a85d0b52c538a1c11d29e1Hannes Reinecke printf("%s: Recovery code sleeping\n", ahd_name(ahd)); 22627b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke if (!wait_for_completion_timeout(&done, 5 * HZ)) { 22637b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_lock(ahd, &flags); 22647b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd->platform_data->eh_done = NULL; 22657b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_unlock(ahd, &flags); 226611668bb673c41ec169a85d0b52c538a1c11d29e1Hannes Reinecke printf("%s: Timer Expired (active %d)\n", 226711668bb673c41ec169a85d0b52c538a1c11d29e1Hannes Reinecke ahd_name(ahd), dev->active); 226873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 22691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22707b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke printf("Recovery code awake\n"); 2271eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke } else 2272eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_unlock(ahd, &flags); 2273eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke 22747b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke if (retval != SUCCESS) 22757b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke printf("%s: Command abort returning 0x%x\n", 22767b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_name(ahd), retval); 22777b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke 22787b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke return retval; 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 228173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_width(struct scsi_target *starget, int width) 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 228373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 228473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 228573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 228673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 22871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 228873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 228973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 229073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 229173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE); 229273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 229373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 229473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 229573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_period(struct scsi_target *starget, int period) 229673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 229773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 229873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 229973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 230073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 230173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 230273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 230373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 230473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 230573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options; 2306a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 230773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 230873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long offset = tinfo->goal.offset; 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2310a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2311a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2312a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: set period to %d\n", ahd_name(ahd), period); 2313a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 231473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (offset == 0) 231573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke offset = MAX_OFFSET; 23161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 231773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period < 8) 231873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke period = 8; 231973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period < 10) { 232073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; 232173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period == 8) 232273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_IU_REQ; 23231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2325a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2326a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 232773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 232873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 23291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 233073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* all PPR requests apart from QAS require wide transfers */ 233173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ppr_options & ~MSG_EXT_PPR_QAS_REQ) { 233273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (spi_width(starget) == 0) 233373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options &= MSG_EXT_PPR_QAS_REQ; 23341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 233573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2336a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2337a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2338a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 233973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 234073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, offset, 234173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 234273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 23431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 234573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_offset(struct scsi_target *starget, int offset) 23461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 234773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 234873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 234973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 235073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 235173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 235273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 235373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 235473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 235573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = 0; 235673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = 0; 2357a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 235873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 235973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2360a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2361a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2362a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: set offset to %d\n", ahd_name(ahd), offset); 2363a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2364a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 236573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 236673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 236773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (offset != 0) { 236873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke period = tinfo->goal.period; 236973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options = tinfo->goal.ppr_options; 2370a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2371a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 23721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2373a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 237473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 237573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options, 237673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, FALSE); 237773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 23781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 238073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_dt(struct scsi_target *starget, int dt) 23811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 238273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 238373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 238473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 238573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 238673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 238773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 238873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 238973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 239073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 239173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_DT_REQ; 239273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 239352b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke unsigned int width = tinfo->goal.width; 239473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 239573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2396a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2397a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2398a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s DT\n", ahd_name(ahd), 2399a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? "enabling" : "disabling"); 2400a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 240173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dt) { 240273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; 240352b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke if (!width) 240452b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke ahd_linux_set_width(starget, 1); 2405a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } else { 2406a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (period <= 9) 2407a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke period = 10; /* If resetting DT, period must be >= 25ns */ 2408a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke /* IU is invalid without DT set */ 2409a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2410a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 241173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 241273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 241373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 241473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2415a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 241673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 241773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 241873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 241973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 24201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 242273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_qas(struct scsi_target *starget, int qas) 24231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 242473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 242573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 242673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 242773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 242873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 242973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 243073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 243173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 243273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 243373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_QAS_REQ; 243473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 2435a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 243673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 243773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2438a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2439a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2440a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s QAS\n", ahd_name(ahd), 2441a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke qas ? "enabling" : "disabling"); 2442a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2443a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2444a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (qas) { 2445a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_QAS_REQ; 2446a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2447a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2448a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 244973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 245073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 245173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 245273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 245373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2454a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 245573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 245673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 245773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 245873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 24591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 246173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_iu(struct scsi_target *starget, int iu) 24621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 246373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 246473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 246573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 246673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 246773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 246873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 246973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 247073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 247173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 247273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_IU_REQ; 247373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 2474a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 247573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 247673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2477a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2478a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2479a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s IU\n", ahd_name(ahd), 2480a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke iu ? "enabling" : "disabling"); 2481a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2482a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2483a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (iu) { 248473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_IU_REQ; 2485a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */ 2486a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2487a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2488a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 248973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 249073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 249173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 249273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 249373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2494a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 249573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 249673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 249773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 249873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 249973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 250173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm) 250273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 250373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 250473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 250573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 250673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 250773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 250873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 250973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 251073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 251173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 251273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_RD_STRM; 251373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 251473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 251573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 251673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2517a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2518a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2519a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s Read Streaming\n", ahd_name(ahd), 2520a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke rdstrm ? "enabling" : "disabling"); 2521a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2522a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 252373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (rdstrm) 252473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_RD_STRM; 252573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 252673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 252773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 252873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 252973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2530a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2531a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2532a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2533a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2534a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2535a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2536a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2537a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_wr_flow(struct scsi_target *starget, int wrflow) 2538a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2539a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2540a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2541a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2542a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2543a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2544a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2545a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2546a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2547a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2548a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_WR_FLOW; 2549a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2550a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2551a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2552a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2553a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2554a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2555a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s Write Flow Control\n", ahd_name(ahd), 2556a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke wrflow ? "enabling" : "disabling"); 2557a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2558a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2559a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (wrflow) 2560a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_WR_FLOW; 2561a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2562a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2563a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2564a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2565a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2566a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2567a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2568a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2569a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2570a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2571a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2572a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2573a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_rti(struct scsi_target *starget, int rti) 2574a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2575a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2576a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2577a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2578a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2579a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2580a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2581a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2582a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2583a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2584a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_RTI; 2585a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2586a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2587a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2588a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2589a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd->features & AHD_RTI) == 0) { 2590a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2591a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2592a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: RTI not available\n", ahd_name(ahd)); 2593a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2594a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke return; 2595a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2596a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2597a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2598a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2599a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s RTI\n", ahd_name(ahd), 2600a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke rti ? "enabling" : "disabling"); 2601a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2602a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2603a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (rti) 2604a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_RTI; 2605a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2606a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2607a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2608a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2609a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2610a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2611a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2612a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2613a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2614a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2615a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2616a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2617a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp) 2618a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2619a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2620a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2621a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2622a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2623a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2624a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2625a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2626a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2627a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2628a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_PCOMP_EN; 2629a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2630a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2631a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2632a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2633a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2634a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2635a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s Precompensation\n", ahd_name(ahd), 2636a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke pcomp ? "Enable" : "Disable"); 2637a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2638a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2639a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (pcomp) 2640a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_PCOMP_EN; 2641a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2642a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2643a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2644a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2645a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2646a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 264773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 264873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 264973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 265073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 26511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 265388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomleystatic void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold) 265488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley{ 265588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 265688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 265788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_tmode_tstate *tstate; 265888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_initiator_tinfo *tinfo 265988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley = ahd_fetch_transinfo(ahd, 266088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley starget->channel + 'A', 266188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley shost->this_id, starget->id, &tstate); 266288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_devinfo devinfo; 266388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int ppr_options = tinfo->goal.ppr_options 266488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley & ~MSG_EXT_PPR_HOLD_MCS; 266588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int period = tinfo->goal.period; 266688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 266788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned long flags; 266888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 266988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley if (hold) 267088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ppr_options |= MSG_EXT_PPR_HOLD_MCS; 267188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 267288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 267388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley starget->channel + 'A', ROLE_INITIATOR); 267488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_find_syncrate(ahd, &period, &ppr_options, 267588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 267688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 267788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_lock(ahd, &flags); 267888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 267988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ppr_options, AHD_TRANS_GOAL, FALSE); 268088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_unlock(ahd, &flags); 268188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley} 268288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 268388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 268488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 268573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic struct spi_function_template ahd_linux_transport_functions = { 268673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_offset = ahd_linux_set_offset, 268773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_offset = 1, 268873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_period = ahd_linux_set_period, 268973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_period = 1, 269073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_width = ahd_linux_set_width, 269173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_width = 1, 269273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_dt = ahd_linux_set_dt, 269373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_dt = 1, 269473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_iu = ahd_linux_set_iu, 269573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_iu = 1, 269673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_qas = ahd_linux_set_qas, 269773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_qas = 1, 269873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_rd_strm = ahd_linux_set_rd_strm, 269973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_rd_strm = 1, 2700a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_wr_flow = ahd_linux_set_wr_flow, 2701a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_wr_flow = 1, 2702a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_rti = ahd_linux_set_rti, 2703a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_rti = 1, 2704a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_pcomp_en = ahd_linux_set_pcomp_en, 2705a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_pcomp_en = 1, 270688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley .set_hold_mcs = ahd_linux_set_hold_mcs, 270788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley .show_hold_mcs = 1, 270873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke}; 270973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 27101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init 27111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_init(void) 27121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 271385a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig int error = 0; 271485a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 271585a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig /* 271685a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig * If we've been passed any parameters, process them now. 271785a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig */ 271885a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig if (aic79xx) 271985a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig aic79xx_setup(aic79xx); 272085a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 272185a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig ahd_linux_transport_template = 272285a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig spi_attach_transport(&ahd_linux_transport_functions); 272373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!ahd_linux_transport_template) 272473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return -ENODEV; 272585a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 272673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_transport_reserve_device(ahd_linux_transport_template, 272773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(struct ahd_linux_device)); 2728a80b3424d9fde3c4b6d62adaf6dda78128dc5c27James Bottomley 272985a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig error = ahd_linux_pci_init(); 273085a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig if (error) 273185a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig spi_release_transport(ahd_linux_transport_template); 273285a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig return error; 27331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit 27361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_exit(void) 27371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 27381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_linux_pci_exit(); 273973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_release_transport(ahd_linux_transport_template); 27401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ahd_linux_init); 27431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(ahd_linux_exit); 2744