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> 565a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bucket size for counting good commands in between bad ones. 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHD_LINUX_ERR_THRESH 1000 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set this to the delay in seconds after SCSI bus reset. 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note, we honor this only for the initial bus reset. 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The scsi error recovery code performs its own bus settle 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * delay handling for error recovery actions. 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC79XX_RESET_DELAY_MS 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_RESET_DELAY CONFIG_AIC79XX_RESET_DELAY_MS 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_RESET_DELAY 5000 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * To change the default number of tagged transactions allowed per-device, 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add a line to the lilo.conf file like: 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * append="aic79xx=verbose,tag_info:{{32,32,32,32},{32,32,32,32}}" 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * which will result in the first four devices on the first two 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * controllers being set to a tagged queue depth of 32. 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The tag_commands is an array of 16 to allow for wide and twin adapters. 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Twin adapters will use indexes 0-7 for channel 0, and indexes 8-15 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for channel 1. 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct { 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint16_t tag_commands[16]; /* Allow for wide/twin adapters. */ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} adapter_tag_info_t; 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Modify this as you see fit for your system. 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 tagged queuing disabled 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 <= n <= 253 n == max tags ever dispatched. 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The driver will throttle the number of commands dispatched to a 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device if it returns queue full. For devices with a fixed maximum 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * queue depth, the driver will eventually determine this depth and 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * lock it in (a console message is printed to indicate that a lock 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has occurred). On some devices, queue full is returned for a temporary 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * resource shortage. These devices will return queue full at varying 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * depths. The driver will throttle back when the queue fulls occur and 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attempt to slowly increase the depth over time as the device recovers 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from the resource shortage. 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * In this example, the first line will disable tagged queueing for all 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the devices on the first probed aic79xx adapter. 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The second line enables tagged queueing with 4 commands/LUN for IDs 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (0, 2-11, 13-15), disables tagged queueing for ID 12, and tells the 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * driver to attempt to use up to 64 tags for ID 1. 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The third line is the same as the first line. 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The fourth line disables tagged queueing for devices 0 and 3. It 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * enables tagged queueing for the other IDs, with 16 commands/LUN 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for IDs 1 and 4, 127 commands/LUN for ID 8, and 4 commands/LUN for 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * IDs 2, 5-7, and 9-15. 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NOTE: The below structure is for reference only, the actual structure 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to modify in order to change things is just below this comment block. 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsadapter_tag_info_t aic79xx_tag_info[] = 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{4, 64, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 4, 4, 4}}, 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 16, 4, 0, 16, 4, 4, 4, 127, 4, 4, 4, 4, 4, 4, 4}} 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds*/ 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC79XX_CMDS_PER_DEVICE 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CMDS_PER_DEVICE CONFIG_AIC79XX_CMDS_PER_DEVICE 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CMDS_PER_DEVICE AHD_MAX_QUEUE 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CONFIGED_TAG_COMMANDS { \ 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 AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE \ 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * By default, use the number of commands specified by 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the users kernel configuration. 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic adapter_tag_info_t aic79xx_tag_info[] = 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 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 {AIC79XX_CONFIGED_TAG_COMMANDS} 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The I/O cell on the chip is very configurable in respect to its analog 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * characteristics. Set the defaults here; they can be overriden with 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the proper insmod parameters. 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahd_linux_iocell_opts 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t precomp; 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t slewrate; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t amplitude; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_PRECOMP 0xFF 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_SLEWRATE 0xFF 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_AMPLITUDE 0xFF 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_IOOPTS \ 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_PRECOMP, \ 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_SLEWRATE, \ 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_AMPLITUDE \ 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_PRECOMP_INDEX 0 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_SLEWRATE_INDEX 1 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_AMPLITUDE_INDEX 2 197980b306a297725d4f25c779ca15086de757acadfDenys Vlasenkostatic const struct ahd_linux_iocell_opts aic79xx_iocell_info[] = 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 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 AIC79XX_DEFAULT_IOOPTS 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There should be a specific return value for this in scsi.h, but 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it seems that most drivers ignore it. 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DID_UNDERFLOW DID_ERROR 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_print_path(struct ahd_softc *ahd, struct scb *scb) 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("(scsi%d:%c:%d:%d): ", 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd->platform_data->host->host_no, 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_CHANNEL(ahd, scb) : 'X', 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_TARGET(ahd, scb) : -1, 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_LUN(scb) : -1); 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * XXX - these options apply unilaterally to _all_ adapters 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cards in the system. This should be fixed. Exceptions to this 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * rule are noted in the comments. 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Skip the scsi bus reset. Non 0 make us skip the reset at startup. This 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has no effect on any later resets that might occur due to things like 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * SCSI bus timeouts. 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_no_reset; 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should we force EXTENDED translation on a controller. 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 == Use whatever is in the SEEPROM or default to off 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 == Use whatever is in the SEEPROM or default to on 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_extended; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCI bus parity checking of the Adaptec controllers. This is somewhat 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * dubious at best. To my knowledge, this option has never actually 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * solved a PCI parity problem, but on certain machines with broken PCI 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * chipset configurations, it can generate tons of false error messages. 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It's included in the driver for completeness. 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 = Shut off PCI parity check 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * non-0 = Enable PCI parity check 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NOTE: you can't actually pass -1 on the lilo prompt. So, to set this 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * variable to -1 you would actually want to simply pass the variable 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * name without a number. That will invert the 0 which will result in 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -1. 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_pci_parity = ~0; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There are lots of broken chipsets in the world. Some of them will 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * violate the PCI spec when we issue byte sized memory writes to our 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * controller. I/O mapped register access, if allowed by the given 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * platform, will work in almost all cases. 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsuint32_t aic79xx_allow_memio = ~0; 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * So that we can set how long each device is given as a selection timeout. 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The table of values goes like this: 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 - 256ms 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 - 128ms 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 - 64ms 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3 - 32ms 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We default to 256ms because some older devices need a longer time 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to respond to initial selection. 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_seltime; 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Certain devices do not perform any aging on commands. Should the 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device be saturated by commands in one portion of the disk, it is 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * possible for transactions on far away sectors to never be serviced. 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * To handle these devices, we can periodically send an ordered tag to 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * force all outstanding transactions to be serviced prior to a new 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * transaction. 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 297289fe5b1f99c5e61ed32796cbed0a1ecc3589041Adrian Bunkstatic uint32_t aic79xx_periodic_otag; 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2993fb086126462c2de06dddaec58981d8827be100dHannes Reinecke/* Some storage boxes are using an LSI chip which has a bug making it 3003fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * impossible to use aic79xx Rev B chip in 320 speeds. The following 3013fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * storage boxes have been reported to be buggy: 3023fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * EonStor 3U 16-Bay: U16U-G3A3 3033fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * EonStor 2U 12-Bay: U12U-G3A3 3043fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * SentinelRAID: 2500F R5 / R6 3053fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * SentinelRAID: 2500F R1 3063fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * SentinelRAID: 2500F/1500F 3073fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * SentinelRAID: 150F 3083fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * 3093fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * To get around this LSI bug, you can set your board to 160 mode 3103fb086126462c2de06dddaec58981d8827be100dHannes Reinecke * or you can enable the SLOWCRC bit. 3113fb086126462c2de06dddaec58981d8827be100dHannes Reinecke */ 3123fb086126462c2de06dddaec58981d8827be100dHannes Reineckeuint32_t aic79xx_slowcrc; 3133fb086126462c2de06dddaec58981d8827be100dHannes Reinecke 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Module information and settable options. 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *aic79xx = NULL; 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31964624d4f46d5e439906bcd3a99a688c833506124Hannes ReineckeMODULE_AUTHOR("Maintainer: Hannes Reinecke <hare@suse.de>"); 32064624d4f46d5e439906bcd3a99a688c833506124Hannes ReineckeMODULE_DESCRIPTION("Adaptec AIC790X U320 SCSI Host Bus Adapter driver"); 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("Dual BSD/GPL"); 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_VERSION(AIC79XX_DRIVER_VERSION); 32373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckemodule_param(aic79xx, charp, 0444); 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(aic79xx, 3252b6ee9b5295460017fc1bc3d60545512df280908Randy Dunlap"period-delimited options string:\n" 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" verbose Enable verbose/diagnostic logging\n" 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" allow_memio Allow device registers to be memory mapped\n" 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" debug Bitmask of debug values to enable\n" 329b1c118121ae37285ddc0a7a908999196bb35fb0bJoe Perches" no_reset Suppress initial bus resets\n" 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" extended Enable extended geometry on all controllers\n" 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" periodic_otag Send an ordered tagged transaction\n" 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" periodically to prevent tag starvation.\n" 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" This may be required by some older disk\n" 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" or drives/RAID arrays.\n" 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" tag_info:<tag_str> Set per-target tag depth\n" 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" global_tag_depth:<int> Global tag depth for all targets on all buses\n" 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" slewrate:<slewrate_list>Set the signal slew rate (0-15).\n" 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" precomp:<pcomp_list> Set the signal precompensation (0-7).\n" 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" amplitude:<int> Set the signal amplitude (0-7).\n" 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" seltime:<int> Selection Timeout:\n" 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" (0/256ms,1/128ms,2/64ms,3/32ms)\n" 3423fb086126462c2de06dddaec58981d8827be100dHannes Reinecke" slowcrc Turn on the SLOWCRC bit (Rev B only)\n" 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds"\n" 344970e2486492aa1eb47a436a5a4c81e92558986a9Lucas De Marchi" Sample modprobe configuration file:\n" 345970e2486492aa1eb47a436a5a4c81e92558986a9Lucas De Marchi" # Enable verbose logging\n" 346970e2486492aa1eb47a436a5a4c81e92558986a9Lucas De Marchi" # Set tag depth on Controller 2/Target 2 to 10 tags\n" 347970e2486492aa1eb47a436a5a4c81e92558986a9Lucas De Marchi" # Shorten the selection timeout to 128ms\n" 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds"\n" 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" options aic79xx 'aic79xx=verbose.tag_info:{{}.{}.{..10}}.seltime:1'\n" 3502b6ee9b5295460017fc1bc3d60545512df280908Randy Dunlap); 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_handle_scsi_status(struct ahd_softc *, 35373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_device *, 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scb *); 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, 35673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd); 3576902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reineckestatic int ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd); 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd); 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u_int ahd_linux_user_tagdepth(struct ahd_softc *ahd, 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_devinfo *devinfo); 36173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_device_queue_depth(struct scsi_device *); 36260a13213840296b1e32d6781653a0eaa83d04382Hannes Reineckestatic int ahd_linux_run_command(struct ahd_softc*, 36373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *, 36460a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke struct scsi_cmnd *); 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_setup_tag_info_global(char *p); 36673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int aic79xx_setup(char *c); 367e3e0ca5143d7a78522df30b75bd1acfcf80c2a38Adrian Bunkstatic void ahd_freeze_simq(struct ahd_softc *ahd); 368e3e0ca5143d7a78522df30b75bd1acfcf80c2a38Adrian Bunkstatic void ahd_release_simq(struct ahd_softc *ahd); 36985a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 37085a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwigstatic int ahd_linux_unit; 37185a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 373be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko/************************** OS Utility Wrappers *******************************/ 374be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid ahd_delay(long); 375be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid 376be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkoahd_delay(long usec) 377be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko{ 378be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko /* 379be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko * udelay on Linux can have problems for 380be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko * multi-millisecond waits. Wait at most 381be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko * 1024us per call. 382be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko */ 383be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko while (usec > 0) { 384be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko udelay(usec % 1024); 385be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko usec -= 1024; 386be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } 387be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko} 388be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 389be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 390be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko/***************************** Low Level I/O **********************************/ 391be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkouint8_t ahd_inb(struct ahd_softc * ahd, long port); 392be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid ahd_outb(struct ahd_softc * ahd, long port, uint8_t val); 393be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid ahd_outw_atomic(struct ahd_softc * ahd, 394be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko long port, uint16_t val); 395be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid ahd_outsb(struct ahd_softc * ahd, long port, 396be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko uint8_t *, int count); 397be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid ahd_insb(struct ahd_softc * ahd, long port, 398be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko uint8_t *, int count); 399be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 400be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkouint8_t 401be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkoahd_inb(struct ahd_softc * ahd, long port) 402be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko{ 403be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko uint8_t x; 404be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 405be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko if (ahd->tags[0] == BUS_SPACE_MEMIO) { 406be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko x = readb(ahd->bshs[0].maddr + port); 407be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } else { 408be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF)); 409be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } 410be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko mb(); 411be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko return (x); 412be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko} 413be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 414d1d7b19d433188e94fc87cc7ca66363cd77a0bbaDenys Vlasenko#if 0 /* unused */ 415d1d7b19d433188e94fc87cc7ca66363cd77a0bbaDenys Vlasenkostatic uint16_t 416be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkoahd_inw_atomic(struct ahd_softc * ahd, long port) 417be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko{ 418be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko uint8_t x; 419be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 420be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko if (ahd->tags[0] == BUS_SPACE_MEMIO) { 421be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko x = readw(ahd->bshs[0].maddr + port); 422be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } else { 423be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF)); 424be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } 425be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko mb(); 426be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko return (x); 427be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko} 428d1d7b19d433188e94fc87cc7ca66363cd77a0bbaDenys Vlasenko#endif 429be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 430be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid 431be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkoahd_outb(struct ahd_softc * ahd, long port, uint8_t val) 432be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko{ 433be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko if (ahd->tags[0] == BUS_SPACE_MEMIO) { 434be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko writeb(val, ahd->bshs[0].maddr + port); 435be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } else { 436be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF)); 437be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } 438be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko mb(); 439be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko} 440be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 441be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid 442be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkoahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val) 443be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko{ 444be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko if (ahd->tags[0] == BUS_SPACE_MEMIO) { 445be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko writew(val, ahd->bshs[0].maddr + port); 446be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } else { 447be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF)); 448be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } 449be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko mb(); 450be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko} 451be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 452be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid 453be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkoahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count) 454be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko{ 455be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko int i; 456be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 457be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko /* 458be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko * There is probably a more efficient way to do this on Linux 459be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko * but we don't use this for anything speed critical and this 460be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko * should work. 461be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko */ 462be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko for (i = 0; i < count; i++) 463be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko ahd_outb(ahd, port, *array++); 464be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko} 465be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 466be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid 467be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkoahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count) 468be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko{ 469be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko int i; 470be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 471be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko /* 472be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko * There is probably a more efficient way to do this on Linux 473be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko * but we don't use this for anything speed critical and this 474be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko * should work. 475be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko */ 476be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko for (i = 0; i < count; i++) 477be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko *array++ = ahd_inb(ahd, port); 478be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko} 479be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 480be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko/******************************* PCI Routines *********************************/ 481be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkouint32_t 482be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkoahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width) 483be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko{ 484be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko switch (width) { 485be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko case 1: 486be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko { 487be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko uint8_t retval; 488be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 489be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko pci_read_config_byte(pci, reg, &retval); 490be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko return (retval); 491be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } 492be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko case 2: 493be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko { 494be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko uint16_t retval; 495be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko pci_read_config_word(pci, reg, &retval); 496be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko return (retval); 497be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } 498be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko case 4: 499be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko { 500be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko uint32_t retval; 501be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko pci_read_config_dword(pci, reg, &retval); 502be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko return (retval); 503be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } 504be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko default: 505be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko panic("ahd_pci_read_config: Read size too big"); 506be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko /* NOTREACHED */ 507be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko return (0); 508be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } 509be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko} 510be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 511be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkovoid 512be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkoahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width) 513be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko{ 514be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko switch (width) { 515be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko case 1: 516be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko pci_write_config_byte(pci, reg, value); 517be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko break; 518be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko case 2: 519be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko pci_write_config_word(pci, reg, value); 520be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko break; 521be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko case 4: 522be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko pci_write_config_dword(pci, reg, value); 523be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko break; 524be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko default: 525be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko panic("ahd_pci_write_config: Write size too big"); 526be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko /* NOTREACHED */ 527be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko } 528be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko} 529be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenko 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/****************************** Inlines ***************************************/ 531be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkostatic void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*); 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 533be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkostatic void 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb) 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 53673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd = scb->io_ctx; 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE); 5404c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori scsi_dma_unmap(cmd); 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************** Macros **************************************/ 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUILD_SCSIID(ahd, cmd) \ 545422c0d61d591cbfb70f029e13505fb437e169d68Jeff Garzik (((scmd_id(cmd) << TID_SHIFT) & TID) | (ahd)->our_id) 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return a string describing the driver. 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const char * 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_info(struct Scsi_Host *host) 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static char buffer[512]; 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char ahd_info[256]; 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *bp; 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp = &buffer[0]; 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)host->hostdata; 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(bp, 0, sizeof(buffer)); 561980b306a297725d4f25c779ca15086de757acadfDenys Vlasenko strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev " AIC79XX_DRIVER_VERSION "\n" 562980b306a297725d4f25c779ca15086de757acadfDenys Vlasenko " <"); 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ahd->description); 564980b306a297725d4f25c779ca15086de757acadfDenys Vlasenko strcat(bp, ">\n" 565980b306a297725d4f25c779ca15086de757acadfDenys Vlasenko " "); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_controller_info(ahd, ahd_info); 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ahd_info); 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (bp); 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Queue an SCB to the controller. 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 576f281233d3eba15fb225d21ae2e228fd4553d824aJeff Garzikahd_linux_queue_lck(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *)) 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 57973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev = scsi_transport_device_data(cmd->device); 5804065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig int rtn = SCSI_MLQUEUE_HOST_BUSY; 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5847b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke cmd->scsi_done = scsi_done; 5857b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke cmd->result = CAM_REQ_INPROG << 16; 5867b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke rtn = ahd_linux_run_command(ahd, dev, cmd); 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5884065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig return rtn; 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 591f281233d3eba15fb225d21ae2e228fd4553d824aJeff Garzikstatic DEF_SCSI_QCMD(ahd_linux_queue) 592f281233d3eba15fb225d21ae2e228fd4553d824aJeff Garzik 593be0d67680d524981dd65c661efe3c9cbd52a684fDenys Vlasenkostatic struct scsi_target ** 59473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_in_softc(struct scsi_target *starget) 59573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 59673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 59773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata); 59873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int target_offset; 59973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 60073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_offset = starget->id; 60173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (starget->channel != 0) 60273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_offset += 8; 60373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 60473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return &ahd->platform_data->starget[target_offset]; 60573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 60673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 60873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_alloc(struct scsi_target *starget) 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 61073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 61173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata); 612986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke struct seeprom_config *sc = ahd->seep_config; 61373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 61473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget); 61573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 61673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 61773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 61873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char channel = starget->channel + 'A'; 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 62073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 62173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 62273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(*ahd_targp != NULL); 62373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 62473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ahd_targp = starget; 62573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 626986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke if (sc) { 627986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke int flags = sc->device_flags[starget->id]; 628986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke 629986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 630986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke starget->id, &tstate); 631986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke 632986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke if ((flags & CFPACKETIZED) == 0) { 633ea4431906d86686e541de527915ccbe556761b16James Bottomley /* don't negotiate packetized (IU) transfers */ 634ea4431906d86686e541de527915ccbe556761b16James Bottomley spi_max_iu(starget) = 0; 635986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke } else { 636986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke if ((ahd->features & AHD_RTI) == 0) 637986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_rti(starget) = 0; 638986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke } 639986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke 640986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke if ((flags & CFQAS) == 0) 641ea4431906d86686e541de527915ccbe556761b16James Bottomley spi_max_qas(starget) = 0; 642986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke 643986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke /* Transinfo values have been set to BIOS settings */ 644986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0; 645986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_min_period(starget) = tinfo->user.period; 646986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke spi_max_offset(starget) = tinfo->user.offset; 647986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke } 648986a25f96accc8272059ae8b3eb63055f58cadb0Hannes Reinecke 64973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, 65073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->id, &tstate); 65173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, ahd->our_id, starget->id, 65273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, channel, 65373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 65473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, 0, 0, 0, 65573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, /*paused*/FALSE); 65673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 65773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, /*paused*/FALSE); 65873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 65973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 66073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 66173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 66273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 66373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 66473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_destroy(struct scsi_target *starget) 66573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 66673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget); 66773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 66873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ahd_targp = NULL; 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 67273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_slave_alloc(struct scsi_device *sdev) 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 67473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 67573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)sdev->host->hostdata); 67673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bootverbose) 67948813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: Slave Alloc %d\n", ahd_name(ahd), sdev->id); 68073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 68173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(sdev); 68273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(dev, 0, sizeof(*dev)); 68373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 68473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 68573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We start out life using untagged 68673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * transactions of which we allow one. 68773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 68873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 68973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 69173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Set maxtags to 0. This will be changed if we 69273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * later determine that we are dealing with 69373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * a tagged queuing capable device. 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 69573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = 0; 69673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 70073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 70173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_slave_configure(struct scsi_device *sdev) 70273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 70373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 70473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 70573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = *((struct ahd_softc **)sdev->host->hostdata); 70673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 707017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik sdev_printk(KERN_INFO, sdev, "Slave Configure\n"); 70873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 70973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_device_queue_depth(sdev); 71073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 71173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Initial Domain Validation */ 71273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!spi_initial_dv(sdev->sdev_target)) 71373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_dv_device(sdev); 71473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 71573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 71673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 71773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(__i386__) 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return the disk geometry for the given SCSI device. 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_biosparam(struct scsi_device *sdev, struct block_device *bdev, 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sector_t capacity, int geom[]) 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t *bh; 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int heads; 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sectors; 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cylinders; 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int extended; 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *((struct ahd_softc **)sdev->host->hostdata); 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bh = scsi_bios_ptable(bdev); 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bh) { 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = scsi_partsize(bh, capacity, 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &geom[2], &geom[0], &geom[1]); 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(bh); 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret != -1) 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ret); 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds heads = 64; 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sectors = 32; 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cylinders = aic_sector_div(capacity, heads, sectors); 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (aic79xx_extended != 0) 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extended = 1; 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extended = (ahd->flags & AHD_EXTENDED_TRANS_A) != 0; 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (extended && cylinders >= 1024) { 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds heads = 255; 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sectors = 63; 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cylinders = aic_sector_div(capacity, heads, sectors); 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[0] = heads; 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[1] = sectors; 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[2] = cylinders; 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Abort the current SCSI command(s). 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 76873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_abort(struct scsi_cmnd *cmd) 76973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 77073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int error; 7716902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 7726902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke error = ahd_linux_queue_abort_cmd(cmd); 77373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 77473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return error; 77573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 77673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 77773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 77873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Attempt to send a target reset message to the device that timed out. 77973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 78073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 78173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_dev_reset(struct scsi_cmnd *cmd) 78273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 7836902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct ahd_softc *ahd; 7846902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct ahd_linux_device *dev; 7856902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct scb *reset_scb; 7866902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke u_int cdb_byte; 7876902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int retval = SUCCESS; 7886902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int paused; 7896902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int wait; 7906902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 7916902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct ahd_tmode_tstate *tstate; 7926902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke unsigned long flags; 7936e9a4738c9fadb7cbdcabc1e3b415159f3741ed9Peter Zijlstra DECLARE_COMPLETION_ONSTACK(done); 79473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 7956902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb = NULL; 7966902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke paused = FALSE; 7976902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke wait = FALSE; 7986902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 7996902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 8006902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke scmd_printk(KERN_INFO, cmd, 8016902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke "Attempting to queue a TARGET RESET message:"); 8026902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 80348813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("CDB:"); 8046902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++) 80548813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk(" 0x%x", cmd->cmnd[cdb_byte]); 80648813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("\n"); 8076902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 8086902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke /* 8096902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke * Determine if we currently own this command. 8106902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke */ 8116902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke dev = scsi_transport_device_data(cmd->device); 8126902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 8136902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (dev == NULL) { 8146902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke /* 8156902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke * No target device for this command exists, 8166902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke * so we must not still own the command. 8176902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke */ 8186902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke scmd_printk(KERN_INFO, cmd, "Is not an active device\n"); 8196902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke return SUCCESS; 8206902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 8216902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 8226902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke /* 8236902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke * Generate us a new SCB 8246902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke */ 8256902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb = ahd_get_scb(ahd, AHD_NEVER_COL_IDX); 8266902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (!reset_scb) { 8276902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke scmd_printk(KERN_INFO, cmd, "No SCB available\n"); 8286902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke return FAILED; 8296902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 8306902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 8316902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 8326902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke cmd->device->id, &tstate); 8336902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->io_ctx = cmd; 8346902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->platform_data->dev = dev; 8356902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->sg_count = 0; 8366902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_set_residual(reset_scb, 0); 8376902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_set_sense_residual(reset_scb, 0); 8386902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->platform_data->xfer_len = 0; 8396902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->control = 0; 8406902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->scsiid = BUILD_SCSIID(ahd,cmd); 8416902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->lun = cmd->device->lun; 8426902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->cdb_len = 0; 8436902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->task_management = SIU_TASKMGMT_LUN_RESET; 8446902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->flags |= SCB_DEVICE_RESET|SCB_RECOVERY_SCB|SCB_ACTIVE; 8456902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 8466902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->flags |= SCB_PACKETIZED; 8476902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } else { 8486902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke reset_scb->hscb->control |= MK_MESSAGE; 8496902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 8506902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke dev->openings--; 8516902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke dev->active++; 8526902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke dev->commands_issued++; 8536902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 8546902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_lock(ahd, &flags); 8556902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 8566902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke LIST_INSERT_HEAD(&ahd->pending_scbs, reset_scb, pending_links); 8576902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_queue_scb(ahd, reset_scb); 8586902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 8596902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd->platform_data->eh_done = &done; 8606902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_unlock(ahd, &flags); 8616902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 86248813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: Device reset code sleeping\n", ahd_name(ahd)); 8636902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (!wait_for_completion_timeout(&done, 5 * HZ)) { 8646902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_lock(ahd, &flags); 8656902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd->platform_data->eh_done = NULL; 8666902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_unlock(ahd, &flags); 86748813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: Device reset timer expired (active %d)\n", 8686902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_name(ahd), dev->active); 8696902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke retval = FAILED; 8706902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 87148813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: Device reset returning 0x%x\n", ahd_name(ahd), retval); 8726902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 8736902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke return (retval); 87473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 87573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 87673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 87773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Reset the SCSI bus. 87873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 87973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 88073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_bus_reset(struct scsi_cmnd *cmd) 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 88373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int found; 884f41b5cec9bd6fec1b11b74500f5fb9c3e6e808b2Hannes Reinecke unsigned long flags; 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 88773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#ifdef AHD_DEBUG 88873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) 88948813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: Bus reset called for cmd %p\n", 89073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd); 89173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 892f41b5cec9bd6fec1b11b74500f5fb9c3e6e808b2Hannes Reinecke ahd_lock(ahd, &flags); 893f41b5cec9bd6fec1b11b74500f5fb9c3e6e808b2Hannes Reinecke 894422c0d61d591cbfb70f029e13505fb437e169d68Jeff Garzik found = ahd_reset_channel(ahd, scmd_channel(cmd) + 'A', 89573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*initiate reset*/TRUE); 896f41b5cec9bd6fec1b11b74500f5fb9c3e6e808b2Hannes Reinecke ahd_unlock(ahd, &flags); 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 89873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 89948813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: SCSI bus reset delivered. " 90073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke "%d SCBs aborted.\n", ahd_name(ahd), found); 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 90273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (SUCCESS); 90373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 90573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestruct scsi_host_template aic79xx_driver_template = { 90673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .module = THIS_MODULE, 90773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .name = "aic79xx", 90885a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig .proc_name = "aic79xx", 90973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .proc_info = ahd_linux_proc_info, 91073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .info = ahd_linux_info, 91173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .queuecommand = ahd_linux_queue, 91273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_abort_handler = ahd_linux_abort, 91373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_device_reset_handler = ahd_linux_dev_reset, 91473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_bus_reset_handler = ahd_linux_bus_reset, 91573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#if defined(__i386__) 91673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .bios_param = ahd_linux_biosparam, 91773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 91873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .can_queue = AHD_MAX_QUEUE, 91973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .this_id = -1, 92080f1443c66de3ec42e28d151bd43a80de398877eHannes Reinecke .max_sectors = 8192, 92173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .cmd_per_lun = 2, 92273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .use_clustering = ENABLE_CLUSTERING, 92373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .slave_alloc = ahd_linux_slave_alloc, 92473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .slave_configure = ahd_linux_slave_configure, 92573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .target_alloc = ahd_linux_target_alloc, 92673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .target_destroy = ahd_linux_target_destroy, 92773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke}; 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 92973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/******************************** Bus DMA *************************************/ 93073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 93173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dma_tag_create(struct ahd_softc *ahd, bus_dma_tag_t parent, 93273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t alignment, bus_size_t boundary, 93373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t lowaddr, dma_addr_t highaddr, 93473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_filter_t *filter, void *filterarg, 93573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t maxsize, int nsegments, 93673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t maxsegsz, int flags, bus_dma_tag_t *ret_tag) 93773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 93873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_tag_t dmat; 93973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 94048813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg dmat = kmalloc(sizeof(*dmat), GFP_ATOMIC); 94173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dmat == NULL) 94273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 94573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Linux is very simplistic about DMA memory. For now don't 94673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * maintain all specification information. Once Linux supplies 94773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * better facilities for doing these operations, or the 94873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * needs of this particular driver change, we might need to do 94973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * more here. 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 95173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->alignment = alignment; 95273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->boundary = boundary; 95373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->maxsize = maxsize; 95473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ret_tag = dmat; 95573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 95673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 95873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 95973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dma_tag_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat) 96073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 96148813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg kfree(dmat); 96273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 96473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 96573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamem_alloc(struct ahd_softc *ahd, bus_dma_tag_t dmat, void** vaddr, 96673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int flags, bus_dmamap_t *mapp) 96773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 96873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *vaddr = pci_alloc_consistent(ahd->dev_softc, 96973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->maxsize, mapp); 97073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (*vaddr == NULL) 97173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 97273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return(0); 97373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 97573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 97673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamem_free(struct ahd_softc *ahd, bus_dma_tag_t dmat, 97773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void* vaddr, bus_dmamap_t map) 97873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 97973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pci_free_consistent(ahd->dev_softc, dmat->maxsize, 98073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke vaddr, map); 98173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 98273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 98373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 98473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map, 98573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *buf, bus_size_t buflen, bus_dmamap_callback_t *cb, 98673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *cb_arg, int flags) 98773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 98973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Assume for now that this will only be used during 99073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * initialization and not for per-transaction buffer mapping. 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 99273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_segment_t stack_sg; 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 99473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke stack_sg.ds_addr = map; 99573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke stack_sg.ds_len = dmat->maxsize; 99673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cb(cb_arg, &stack_sg, /*nseg*/1, /*error*/0); 99773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 99873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 100073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 100173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map) 100273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 100373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 100573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 100673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_unload(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map) 100773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 100873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Nothing to do */ 100973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 101073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 101273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/********************* Platform Dependent Functions ***************************/ 101373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 101473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_iocell_info(u_long index, int instance, int targ, int32_t value) 101573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 101773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((instance >= 0) 10186391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser && (instance < ARRAY_SIZE(aic79xx_iocell_info))) { 101973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint8_t *iocell_info; 102073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 102173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_info = (uint8_t*)&aic79xx_iocell_info[instance]; 102273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_info[index] = value & 0xFFFF; 102373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 102448813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("iocell[%d:%ld] = %d\n", instance, index, value); 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 102673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 102873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 102973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_tag_info_global(char *p) 103073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 103173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int tags, i, j; 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 103373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = simple_strtoul(p + 1, NULL, 0) & 0xff; 103448813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Setting Global Tags= %d\n", tags); 103573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 10366391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(aic79xx_tag_info); i++) { 103773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (j = 0; j < AHD_NUM_TARGETS; j++) { 103873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke aic79xx_tag_info[i].tag_commands[j] = tags; 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 104473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_tag_info(u_long arg, int instance, int targ, int32_t value) 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 104773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((instance >= 0) && (targ >= 0) 10486391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser && (instance < ARRAY_SIZE(aic79xx_tag_info)) 104973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (targ < AHD_NUM_TARGETS)) { 105073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke aic79xx_tag_info[instance].tag_commands[targ] = value & 0x1FF; 105173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 105248813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("tag_info[%d:%d] = %d\n", instance, targ, value); 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10561ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwigstatic char * 10571ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwigahd_parse_brace_option(char *opt_name, char *opt_arg, char *end, int depth, 10581ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig void (*callback)(u_long, int, int, int32_t), 10591ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig u_long callback_arg) 10601ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig{ 10611ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig char *tok_end; 10621ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig char *tok_end2; 10631ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int i; 10641ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int instance; 10651ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int targ; 10661ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int done; 10671ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig char tok_list[] = {'.', ',', '{', '}', '\0'}; 10681ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig 10691ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig /* All options use a ':' name/arg separator */ 10701ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (*opt_arg != ':') 10711ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig return (opt_arg); 10721ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 10731ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance = -1; 10741ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ = -1; 10751ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = FALSE; 10761ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig /* 10771ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig * Restore separator that may be in 10781ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig * the middle of our option argument. 10791ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig */ 10801ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end = strchr(opt_arg, '\0'); 10811ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (tok_end < end) 10821ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig *tok_end = ','; 10831ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig while (!done) { 10841ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig switch (*opt_arg) { 10851ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '{': 10861ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (instance == -1) { 10871ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance = 0; 10881ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } else { 10891ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (depth > 1) { 10901ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (targ == -1) 10911ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ = 0; 10921ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } else { 109348813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Malformed Option %s\n", 10941ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_name); 10951ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = TRUE; 10961ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 10971ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 10981ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 10991ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 11001ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '}': 11011ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (targ != -1) 11021ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ = -1; 11031ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig else if (instance != -1) 11041ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance = -1; 11051ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 11061ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 11071ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case ',': 11081ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '.': 11091ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (instance == -1) 11101ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = TRUE; 11111ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig else if (targ >= 0) 11121ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ++; 11131ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig else if (instance >= 0) 11141ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance++; 11151ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 11161ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 11171ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '\0': 11181ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = TRUE; 11191ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 11201ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig default: 11211ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end = end; 11221ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig for (i = 0; tok_list[i]; i++) { 11231ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end2 = strchr(opt_arg, tok_list[i]); 11241ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if ((tok_end2) && (tok_end2 < tok_end)) 11251ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end = tok_end2; 11261ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 11271ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig callback(callback_arg, instance, targ, 11281ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig simple_strtol(opt_arg, NULL, 0)); 11291ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg = tok_end; 11301ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 11311ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 11321ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 11331ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig return (opt_arg); 11341ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig} 11351ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 113773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Handle Linux boot parameters. This routine allows for assigning a value 113873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to a parameter with a ':' between the parameter and the value. 113973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * ie. aic79xx=stpwlev:1,extended 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 114273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeaic79xx_setup(char *s) 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 114473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int i, n; 114573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *p; 114673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *end; 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1148980b306a297725d4f25c779ca15086de757acadfDenys Vlasenko static const struct { 114973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke const char *name; 115073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint32_t *flag; 115173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } options[] = { 115273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "extended", &aic79xx_extended }, 115373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "no_reset", &aic79xx_no_reset }, 115473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "verbose", &aic79xx_verbose }, 115573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "allow_memio", &aic79xx_allow_memio}, 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 115773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "debug", &ahd_debug }, 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 115973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "periodic_otag", &aic79xx_periodic_otag }, 116073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "pci_parity", &aic79xx_pci_parity }, 116173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "seltime", &aic79xx_seltime }, 116273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "tag_info", NULL }, 116373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "global_tag_depth", NULL}, 116473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "slewrate", NULL }, 116573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "precomp", NULL }, 116673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "amplitude", NULL }, 11673fb086126462c2de06dddaec58981d8827be100dHannes Reinecke { "slowcrc", &aic79xx_slowcrc }, 116873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke }; 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 117073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke end = strchr(s, '\0'); 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 117273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 11736391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser * XXX ia64 gcc isn't smart enough to know that ARRAY_SIZE 117473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * will never be 0 in this case. 11756391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser */ 11766391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser n = 0; 117773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 117873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke while ((p = strsep(&s, ",.")) != NULL) { 117973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (*p == '\0') 118073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke continue; 11816391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(options); i++) { 118273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 118373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke n = strlen(options[i].name); 118473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (strncmp(options[i].name, p, n) == 0) 118573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 118673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 11876391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser if (i == ARRAY_SIZE(options)) 118873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke continue; 118973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 119073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (strncmp(p, "global_tag_depth", n) == 0) { 119173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_setup_tag_info_global(p + n); 119273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "tag_info", n) == 0) { 11931ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("tag_info", p + n, end, 119473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2, ahd_linux_setup_tag_info, 0); 119573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "slewrate", n) == 0) { 11961ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("slewrate", 119773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 119873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_SLEWRATE_INDEX); 119973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "precomp", n) == 0) { 12001ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("precomp", 120173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 120273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_PRECOMP_INDEX); 120373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "amplitude", n) == 0) { 12041ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("amplitude", 120573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 120673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_AMPLITUDE_INDEX); 120773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (p[n] == ':') { 120873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) = simple_strtoul(p + n + 1, NULL, 0); 120973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (!strncmp(p, "verbose", n)) { 121073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) = 1; 121173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 121273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) ^= 0xFFFFFFFF; 121373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 121473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 121573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 1; 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 121873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke__setup("aic79xx=", aic79xx_setup); 121973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 122073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeuint32_t aic79xx_verbose; 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 122373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *template) 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 122573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char buf[80]; 122673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *host; 122773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *new_name; 122873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long s; 1229e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl int retval; 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 123173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke template->name = ahd->description; 123273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host = scsi_host_alloc(template, sizeof(struct ahd_softc *)); 123373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (host == NULL) 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ENOMEM); 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 123673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)host->hostdata) = ahd; 123773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->host = host; 123873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->can_queue = AHD_MAX_QUEUE; 123973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->cmd_per_lun = 2; 124073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->sg_tablesize = AHD_NSEG; 124173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->this_id = ahd->our_id; 124273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->irq = ahd->platform_data->irq; 124373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_id = (ahd->features & AHD_WIDE) ? 16 : 8; 124473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_lun = AHD_NUM_LUNS; 124573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_channel = 0; 124673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->sg_tablesize = AHD_NSEG; 1247eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_lock(ahd, &s); 124885a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig ahd_set_unit(ahd, ahd_linux_unit++); 1249eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_unlock(ahd, &s); 125073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sprintf(buf, "scsi%d", host->host_no); 125148813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg new_name = kmalloc(strlen(buf) + 1, GFP_ATOMIC); 125273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (new_name != NULL) { 125373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke strcpy(new_name, buf); 125473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_name(ahd, new_name); 125573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 125673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->unique_id = ahd->unit; 125773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_initialize_scsi_bus(ahd); 125873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_intr_enable(ahd, TRUE); 125973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 126073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->transportt = ahd_linux_transport_template; 126173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 1262e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl retval = scsi_add_host(host, &ahd->dev_softc->dev); 1263e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl if (retval) { 1264e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl printk(KERN_WARNING "aic79xx: scsi_add_host failed\n"); 1265e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl scsi_host_put(host); 1266e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl return retval; 1267e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl } 1268e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl 126973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_scan_host(host); 1270e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl return 0; 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 127373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 127473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Place the SCSI bus into a known state by either resetting it, 127573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * or forcing transfer negotiations on the next command to any 127673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * target. 127773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 127873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 127973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_initialize_scsi_bus(struct ahd_softc *ahd) 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 128173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int target_id; 128273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int numtarg; 1283eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke unsigned long s; 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 128573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_id = 0; 128673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke numtarg = 0; 128773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 128873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_no_reset != 0) 128973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->flags &= ~AHD_RESET_BUS_A; 129073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 129173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->flags & AHD_RESET_BUS_A) != 0) 129273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_reset_channel(ahd, 'A', /*initiate_reset*/TRUE); 129373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else 129473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke numtarg = (ahd->features & AHD_WIDE) ? 16 : 8; 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1296eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_lock(ahd, &s); 1297eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 129973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Force negotiation to async for all targets that 130073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * will not see an initial bus reset. 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 130273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (; target_id < numtarg; target_id++) { 130373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 130473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 130573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 130673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 130773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 130873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_id, &tstate); 130973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, ahd->our_id, target_id, 131073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, 'A', ROLE_INITIATOR); 131173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_update_neg_request(ahd, &devinfo, tstate, 131273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo, AHD_NEG_ALWAYS); 131373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 1314eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_unlock(ahd, &s); 131573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Give the bus some time to recover */ 131673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->flags & AHD_RESET_BUS_A) != 0) { 131773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_freeze_simq(ahd); 1318eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke msleep(AIC79XX_RESET_DELAY); 1319eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_release_simq(ahd); 132073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 132473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 132673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data = 132748813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg kmalloc(sizeof(struct ahd_platform_data), GFP_ATOMIC); 132873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data == NULL) 132973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 133073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(ahd->platform_data, 0, sizeof(struct ahd_platform_data)); 133173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->irq = AHD_LINUX_NOIRQ; 133273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lockinit(ahd); 133373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->seltime = (aic79xx_seltime & 0x3) << 4; 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 133773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 133873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_free(struct ahd_softc *ahd) 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 134073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget; 1341f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke int i; 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 134373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data != NULL) { 134473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* destroy all of the device and target objects */ 134573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < AHD_NUM_TARGETS; i++) { 134673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget = ahd->platform_data->starget[i]; 134773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (starget != NULL) { 134873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->starget[i] = NULL; 134973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 135073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 135273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->irq != AHD_LINUX_NOIRQ) 135373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke free_irq(ahd->platform_data->irq, ahd); 135473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[0] == BUS_SPACE_PIO 135573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[0].ioport != 0) 135673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_region(ahd->bshs[0].ioport, 256); 135773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[1] == BUS_SPACE_PIO 135873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[1].ioport != 0) 135973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_region(ahd->bshs[1].ioport, 256); 136073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[0] == BUS_SPACE_MEMIO 136173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[0].maddr != NULL) { 136273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iounmap(ahd->bshs[0].maddr); 136373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_mem_region(ahd->platform_data->mem_busaddr, 136473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 0x1000); 136573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 136697af50f60ff1202b0dd9ce481d4cf98c6a578becJames Bottomley if (ahd->platform_data->host) 136797af50f60ff1202b0dd9ce481d4cf98c6a578becJames Bottomley scsi_host_put(ahd->platform_data->host); 136897af50f60ff1202b0dd9ce481d4cf98c6a578becJames Bottomley 136948813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg kfree(ahd->platform_data); 137073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 137373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 137473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_init(struct ahd_softc *ahd) 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 137673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 137773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Lookup and commit any modified IO Cell options. 137873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 13796391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) { 1380980b306a297725d4f25c779ca15086de757acadfDenys Vlasenko const struct ahd_linux_iocell_opts *iocell_opts; 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 138273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_opts = &aic79xx_iocell_info[ahd->unit]; 138373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->precomp != AIC79XX_DEFAULT_PRECOMP) 138473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_PRECOMP(ahd, iocell_opts->precomp); 138573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->slewrate != AIC79XX_DEFAULT_SLEWRATE) 138673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_SLEWRATE(ahd, iocell_opts->slewrate); 138773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->amplitude != AIC79XX_DEFAULT_AMPLITUDE) 138873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_AMPLITUDE(ahd, iocell_opts->amplitude); 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 139373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 139473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb) 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 139673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_platform_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb), 139773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_GET_CHANNEL(ahd, scb), 139873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_GET_LUN(scb), SCB_LIST_NULL, 139973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_UNKNOWN, CAM_REQUEUE_REQ); 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 140273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 1403f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reineckeahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, 1404f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke struct ahd_devinfo *devinfo, ahd_queue_alg alg) 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 140673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 140773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int was_queuing; 140873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int now_queuing; 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 141073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (sdev == NULL) 141173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return; 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 141373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(sdev); 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 141573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev == NULL) 141673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return; 141773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke was_queuing = dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED); 141873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (alg) { 141973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 142073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_NONE: 142173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = 0; 142273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 142373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_BASIC: 142473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = AHD_DEV_Q_BASIC; 142573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 142673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_TAGGED: 142773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = AHD_DEV_Q_TAGGED; 142873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 142973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 143073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & AHD_DEV_FREEZE_TIL_EMPTY) == 0 143173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (was_queuing != now_queuing) 143273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (dev->active != 0)) { 143373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_FREEZE_TIL_EMPTY; 143473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->qfrozen++; 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 143773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags &= ~(AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED|AHD_DEV_PERIODIC_OTAG); 143873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (now_queuing) { 143973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int usertags; 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 144173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke usertags = ahd_linux_user_tagdepth(ahd, devinfo); 144273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!was_queuing) { 144373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 144425985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * Start out aggressively and allow our 144573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * dynamic queue depth algorithm to take 144673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * care of the rest. 144773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 144873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = usertags; 144973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = dev->maxtags - dev->active; 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 145173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->maxtags == 0) { 145273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 145373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Queueing is disabled by the user. 145473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 145573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 145673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (alg == AHD_QUEUE_TAGGED) { 145773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_Q_TAGGED; 145873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_periodic_otag != 0) 145973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_PERIODIC_OTAG; 146073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else 146173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_Q_BASIC; 146273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 146373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* We can only have one opening. */ 146473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = 0; 146573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1 - dev->active; 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 146873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { 146973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_DEV_Q_BASIC: 14700aa800db8f1927aefe6f0ba6ce9d70f044374aefHannes Reinecke scsi_set_tag_type(sdev, MSG_SIMPLE_TASK); 14710aa800db8f1927aefe6f0ba6ce9d70f044374aefHannes Reinecke scsi_activate_tcq(sdev, dev->openings + dev->active); 147273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 147373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_DEV_Q_TAGGED: 14740aa800db8f1927aefe6f0ba6ce9d70f044374aefHannes Reinecke scsi_set_tag_type(sdev, MSG_ORDERED_TASK); 14750aa800db8f1927aefe6f0ba6ce9d70f044374aefHannes Reinecke scsi_activate_tcq(sdev, dev->openings + dev->active); 147673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 147773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 147973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We allow the OS to queue 2 untagged transactions to 148073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * us at any time even though we can only execute them 148173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * serially on the controller/device. This should 148273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * remove some latency. 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14840aa800db8f1927aefe6f0ba6ce9d70f044374aefHannes Reinecke scsi_deactivate_tcq(sdev, 1); 148573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 148973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 149073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_abort_scbs(struct ahd_softc *ahd, int target, char channel, 149173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int lun, u_int tag, role_t role, uint32_t status) 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 149373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 149673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic u_int 149773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_user_tagdepth(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 149973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke static int warned_user; 150073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int tags; 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 150273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = 0; 150373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->user_discenable & devinfo->target_mask) != 0) { 15046391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser if (ahd->unit >= ARRAY_SIZE(aic79xx_tag_info)) { 150573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 150673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (warned_user == 0) { 150748813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk(KERN_WARNING 150873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: WARNING: Insufficient tag_info instances\n" 150973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: for installed controllers. Using defaults\n" 151073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: Please update the aic79xx_tag_info array in\n" 151173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: the aic79xx_osm.c source file.\n"); 151273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke warned_user++; 151373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 151473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = AHD_MAX_QUEUE; 151573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 151673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke adapter_tag_info_t *tag_info; 151773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 151873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tag_info = &aic79xx_tag_info[ahd->unit]; 151973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = tag_info->tag_commands[devinfo->target_offset]; 152073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tags > AHD_MAX_QUEUE) 152173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = AHD_MAX_QUEUE; 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 152473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (tags); 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 152873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Determines the queue depth for a given device. 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 153173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_device_queue_depth(struct scsi_device *sdev) 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 153373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 153473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int tags; 153573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)sdev->host->hostdata); 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 153773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, 153873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->our_id, 153973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->id, sdev->lun, 154073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->channel == 0 ? 'A' : 'B', 154173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 154273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = ahd_linux_user_tagdepth(ahd, &devinfo); 154373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tags != 0 && sdev->tagged_supported != 0) { 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1545f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_TAGGED); 1546f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_send_async(ahd, devinfo.channel, devinfo.target, 1547f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke devinfo.lun, AC_TRANSFER_NEG); 154873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_devinfo(ahd, &devinfo); 154948813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Tagged Queuing enabled. Depth %d\n", tags); 155073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 1551f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_NONE); 1552f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_send_async(ahd, devinfo.channel, devinfo.target, 1553f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke devinfo.lun, AC_TRANSFER_NEG); 155473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 155573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 155773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 155873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, 155973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd) 156073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 156173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *scb; 156273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct hardware_scb *hscb; 156373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 156473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 156573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int col_idx; 156673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint16_t mask; 15677b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke unsigned long flags; 15684c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori int nseg; 15697b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke 15702505873afe510d8db05665684c056ac8f0b24563FUJITA Tomonori nseg = scsi_dma_map(cmd); 15712505873afe510d8db05665684c056ac8f0b24563FUJITA Tomonori if (nseg < 0) 15722505873afe510d8db05665684c056ac8f0b24563FUJITA Tomonori return SCSI_MLQUEUE_HOST_BUSY; 15732505873afe510d8db05665684c056ac8f0b24563FUJITA Tomonori 15747b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_lock(ahd, &flags); 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 157773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Get an scb to use. 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 157973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 158073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->id, &tstate); 158173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) == 0 158273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 158373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke col_idx = AHD_NEVER_COL_IDX; 158473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 158573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke col_idx = AHD_BUILD_COL_IDX(cmd->device->id, 158673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun); 158773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 158873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 158973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->flags |= AHD_RESOURCE_SHORTAGE; 15907b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_unlock(ahd, &flags); 15912505873afe510d8db05665684c056ac8f0b24563FUJITA Tomonori scsi_dma_unmap(cmd); 159273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return SCSI_MLQUEUE_HOST_BUSY; 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 159573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->io_ctx = cmd; 159673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->dev = dev; 159773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb = scb->hscb; 159873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->host_scribble = (char *)scb; 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 160073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 160173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Fill out basics of the HSCB. 160273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 160373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control = 0; 160473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->scsiid = BUILD_SCSIID(ahd, cmd); 160573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->lun = cmd->device->lun; 160673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->hscb->task_management = 0; 160773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke mask = SCB_GET_TARGET_MASK(ahd, scb); 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 160973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->user_discenable & mask) != 0) 161073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= DISCENB; 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 161273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) 161373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_PACKETIZED; 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 161573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((tstate->auto_negotiate & mask) != 0) { 161673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_AUTO_NEGOTIATE; 161773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->hscb->control |= MK_MESSAGE; 161873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 161973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 162073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) { 162173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int msg_bytes; 162273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint8_t tag_msgs[2]; 162373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 162473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke msg_bytes = scsi_populate_tag_msg(cmd, tag_msgs); 162573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (msg_bytes && tag_msgs[0] != MSG_SIMPLE_TASK) { 162673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= tag_msgs[0]; 162773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tag_msgs[0] == MSG_ORDERED_TASK) 162873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 162973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else 163073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->commands_since_idle_or_otag == AHD_OTAG_THRESH 163173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (dev->flags & AHD_DEV_Q_TAGGED) != 0) { 163273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= MSG_ORDERED_TASK; 163373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 163473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 163573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= MSG_SIMPLE_TASK; 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 163773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 163973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->cdb_len = cmd->cmd_len; 164073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memcpy(hscb->shared_data.idata.cdb, cmd->cmnd, hscb->cdb_len); 164173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 164273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = 0; 164373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_residual(scb, 0); 164473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_sense_residual(scb, 0); 164573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->sg_count = 0; 16464c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori 16474c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori if (nseg > 0) { 16484c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori void *sg = scb->sg_list; 16494c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori struct scatterlist *cur_seg; 16504c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori int i; 16514c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori 165273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = 0; 16534c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori 16544c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori scsi_for_each_sg(cmd, cur_seg, nseg, i) { 165573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t addr; 165673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t len; 165773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 165873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke addr = sg_dma_address(cur_seg); 165973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke len = sg_dma_len(cur_seg); 166073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len += len; 166173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sg = ahd_sg_setup(ahd, scb, sg, addr, len, 16624c688fc7df61874997be4588c889e2248c4ca195FUJITA Tomonori i == (nseg - 1)); 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 166573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 166673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 166773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings--; 166873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active++; 166973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_issued++; 167073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 167173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & AHD_DEV_PERIODIC_OTAG) != 0) 167273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag++; 167373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_ACTIVE; 167473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_queue_scb(ahd, scb); 167573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 16767b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_unlock(ahd, &flags); 16777b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke 167873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 168173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 168273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * SCSI controller interrupt handler. 168373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 168473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeirqreturn_t 16857d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsahd_linux_isr(int irq, void *dev_id) 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 168773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 168873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long flags; 168973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int ours; 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 169173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = (struct ahd_softc *) dev_id; 169273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 169373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ours = ahd_intr(ahd); 169473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 169573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return IRQ_RETVAL(ours); 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 169973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_send_async(struct ahd_softc *ahd, char channel, 1700f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke u_int target, u_int lun, ac_code code) 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 170273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (code) { 170373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_TRANSFER_NEG: 170473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 170573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char buf[80]; 170673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget; 170773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct info_str info; 170873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 170973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 171073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int target_ppr_options; 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 171273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(target == CAM_TARGET_WILDCARD); 171373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 171473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.buffer = buf; 171573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.length = sizeof(buf); 171673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.offset = 0; 171773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.pos = 0; 171873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, 171973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target, &tstate); 172073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 172173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 172273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Don't bother reporting results while 172373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * negotiations are still pending. 172473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 172573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tinfo->curr.period != tinfo->goal.period 172673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.width != tinfo->goal.width 172773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.offset != tinfo->goal.offset 172873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.ppr_options != tinfo->goal.ppr_options) 172973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose == 0) 173073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 173173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 173273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 173373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Don't bother reporting results that 173473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * are identical to those last reported. 173573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 173673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget = ahd->platform_data->starget[target]; 1737fc789a93994858b5e5a46afb96d0dcf6cc1b6f08James Bottomley if (starget == NULL) 173873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 173973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 174073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_ppr_options = 174173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0) 174273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke + (spi_qas(starget) ? MSG_EXT_PPR_QAS_REQ : 0) 17433f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_iu(starget) ? MSG_EXT_PPR_IU_REQ : 0) 17443f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_rd_strm(starget) ? MSG_EXT_PPR_RD_STRM : 0) 17453f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_pcomp_en(starget) ? MSG_EXT_PPR_PCOMP_EN : 0) 17463f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_rti(starget) ? MSG_EXT_PPR_RTI : 0) 174788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley + (spi_wr_flow(starget) ? MSG_EXT_PPR_WR_FLOW : 0) 174888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley + (spi_hold_mcs(starget) ? MSG_EXT_PPR_HOLD_MCS : 0); 174973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 175073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tinfo->curr.period == spi_period(starget) 175173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.width == spi_width(starget) 175273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.offset == spi_offset(starget) 175373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.ppr_options == target_ppr_options) 175473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose == 0) 175573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 175673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 175773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_period(starget) = tinfo->curr.period; 175873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_width(starget) = tinfo->curr.width; 175973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_offset(starget) = tinfo->curr.offset; 1760a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ ? 1 : 0; 1761a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ ? 1 : 0; 1762a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ ? 1 : 0; 17633f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_rd_strm(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RD_STRM ? 1 : 0; 17643f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_pcomp_en(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_PCOMP_EN ? 1 : 0; 17653f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_rti(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RTI ? 1 : 0; 17663f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_wr_flow(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_WR_FLOW ? 1 : 0; 176788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley spi_hold_mcs(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_HOLD_MCS ? 1 : 0; 176873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_display_xfer_agreement(starget); 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 177073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 177173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_SENT_BDR: 177273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 177373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke WARN_ON(lun != CAM_LUN_WILDCARD); 177473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_report_device_reset(ahd->platform_data->host, 177573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke channel - 'A', target); 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 177873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_BUS_RESET: 177973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->host != NULL) { 178073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_report_bus_reset(ahd->platform_data->host, 178173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke channel - 'A'); 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 178373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 178473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 178573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke panic("ahd_send_async: Unexpected async event"); 178673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 178973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 179073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Calls the higher level scsi done function and frees the scb. 179173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 179273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 179373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_done(struct ahd_softc *ahd, struct scb *scb) 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 179573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 179673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 179873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_ACTIVE) == 0) { 179948813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("SCB %d done'd twice\n", SCB_GET_TAG(scb)); 180073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_dump_card_state(ahd); 180173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke panic("Stopping for safety"); 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 180373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_REMOVE(scb, pending_links); 180473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd = scb->io_ctx; 180573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scb->platform_data->dev; 180673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active--; 180773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings++; 180873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) { 180973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->result &= ~(CAM_DEV_QFRZN << 16); 181073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->qfrozen--; 181173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 181273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_unmap_scb(ahd, scb); 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 181573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Guard against stale sense data. 181673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * The Linux mid-layer assumes that sense 181773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * was retrieved anytime the first byte of 181873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the sense buffer looks "sane". 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 182073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->sense_buffer[0] = 0; 182173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_get_transaction_status(scb) == CAM_REQ_INPROG) { 182273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint32_t amount_xferred; 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 182473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke amount_xferred = 182573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_transfer_length(scb) - ahd_get_residual(scb); 182673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_TRANSMISSION_ERROR) != 0) { 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 182873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_MISC) != 0) { 182973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 183048813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Set CAM_UNCOR_PARITY\n"); 183173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 183373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_UNCOR_PARITY); 183473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#ifdef AHD_REPORT_UNDERFLOWS 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 183673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * This code is disabled by default as some 183773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * clients of the SCSI system do not properly 183873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * initialize the underflow parameter. This 183973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * results in spurious termination of commands 184073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * that complete as expected (e.g. underflow is 184173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * allowed as command can return variable amounts 184273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * of data. 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 184473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (amount_xferred < scb->io_ctx->underflow) { 184573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int i; 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 184773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 184848813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("CDB:"); 184973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < scb->io_ctx->cmd_len; i++) 185048813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk(" 0x%x", scb->io_ctx->cmnd[i]); 185148813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("\n"); 185273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 185348813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Saw underflow (%ld of %ld bytes). " 185473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke "Treated as error\n", 185573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_residual(scb), 185673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_transfer_length(scb)); 185773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_DATA_RUN_ERR); 185873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 185973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 186073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_REQ_CMP); 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 186273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (ahd_get_transaction_status(scb) == CAM_SCSI_STATUS_ERROR) { 186373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_handle_scsi_status(ahd, cmd->device, scb); 186473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 186673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->openings == 1 186773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_get_transaction_status(scb) == CAM_REQ_CMP 186873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_get_scsi_status(scb) != SCSI_STATUS_QUEUE_FULL) 186973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count++; 187073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 187173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Some devices deal with temporary internal resource 187273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * shortages by returning queue full. When the queue 187373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * full occurrs, we throttle back. Slowly try to get 187473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * back to our previous queue depth. 187573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 187673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->openings + dev->active) < dev->maxtags 187773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && dev->tag_success_count > AHD_TAG_SUCCESS_INTERVAL) { 187873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count = 0; 187973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings++; 188073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 188273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active == 0) 188373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 188573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 188648813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Recovery SCB completes\n"); 188773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_get_transaction_status(scb) == CAM_BDR_SENT 188873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || ahd_get_transaction_status(scb) == CAM_REQ_ABORTED) 188973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT); 18907b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke 18917b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke if (ahd->platform_data->eh_done) 18927b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke complete(ahd->platform_data->eh_done); 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 189473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 189573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_free_scb(ahd, scb); 189673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_queue_cmd_complete(ahd, cmd); 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 190073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_handle_scsi_status(struct ahd_softc *ahd, 190173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_device *sdev, struct scb *scb) 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 190373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 190473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev = scsi_transport_device_data(sdev); 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 190673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, 190773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->our_id, 190873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->id, sdev->lun, 190973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->channel == 0 ? 'A' : 'B', 191073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 191173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 191273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 191373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We don't currently trust the mid-layer to 191473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * properly deal with queue full or busy. So, 191573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * when one occurs, we tell the mid-layer to 191673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * unconditionally requeue the command to us 191773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so that we can retry it ourselves. We also 191873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * implement our own throttling mechanism so 191973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * we don't clobber the device with too many 192073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * commands. 192173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 192273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (ahd_get_scsi_status(scb)) { 192373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 192473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 192573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_CHECK_COND: 192673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_CMD_TERMINATED: 192773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 192873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 193173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Copy sense information to the OS's cmd 193273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * structure if it is available. 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 193473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd = scb->io_ctx; 193573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & (SCB_SENSE|SCB_PKT_SENSE)) != 0) { 193673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_status_iu_header *siu; 193773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int sense_size; 193873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int sense_offset; 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 194073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (scb->flags & SCB_SENSE) { 19416d07cb71fdacc710fd9816cddb5c2df0f7bd96b4Amol Lad sense_size = min(sizeof(struct scsi_sense_data) 194273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_sense_residual(scb), 1943b80ca4f7ee36c26d300c5a8f429e73372d153379FUJITA Tomonori (u_long)SCSI_SENSE_BUFFERSIZE); 194473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_offset = 0; 194573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 194673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 194773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Copy only the sense data into the provided 194873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * buffer. 194973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 195073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke siu = (struct scsi_status_iu_header *) 195173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->sense_data; 19526d07cb71fdacc710fd9816cddb5c2df0f7bd96b4Amol Lad sense_size = min_t(size_t, 19536d07cb71fdacc710fd9816cddb5c2df0f7bd96b4Amol Lad scsi_4btoul(siu->sense_length), 1954b80ca4f7ee36c26d300c5a8f429e73372d153379FUJITA Tomonori SCSI_SENSE_BUFFERSIZE); 195573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_offset = SIU_SENSE_OFFSET(siu); 195673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1958b80ca4f7ee36c26d300c5a8f429e73372d153379FUJITA Tomonori memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 195973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memcpy(cmd->sense_buffer, 196073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_sense_buf(ahd, scb) 196173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke + sense_offset, sense_size); 196273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->result |= (DRIVER_SENSE << 24); 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 196573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_debug & AHD_SHOW_SENSE) { 196673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int i; 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 196848813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Copied %d bytes of sense data at %d:", 196973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_size, sense_offset); 197073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < sense_size; i++) { 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i & 0xF) == 0) 197248813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("\n"); 197348813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("0x%x ", cmd->sense_buffer[i]); 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 197548813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("\n"); 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 198073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 198173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_QUEUE_FULL: 198273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 198373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * By the time the core driver has returned this 198473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * command, all other commands that were queued 198573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to us but not the device have been returned. 198673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * This ensures that dev->active is equal to 198773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the number of commands actually queued to 198873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the device. 198973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 199073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count = 0; 199173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active != 0) { 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 199373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Drop our opening count to the number 199473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * of commands currently outstanding. 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 199673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 0; 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 199873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_QFULL) != 0) { 199973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 200048813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Dropping tag count to %d\n", 200173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active); 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 200473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active == dev->tags_on_last_queuefull) { 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 200673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->last_queuefull_same_count++; 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 200873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * If we repeatedly see a queue full 200973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * at the same queue depth, this 201073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * device has a fixed number of tag 201173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * slots. Lock in this tag depth 201273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we stop seeing queue fulls from 201373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * this device. 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 201573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->last_queuefull_same_count 201673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke == AHD_LOCK_TAGS_COUNT) { 201773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = dev->active; 201873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 201948813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Locking max tag count at %d\n", 202073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active); 20211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 202273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 202373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tags_on_last_queuefull = dev->active; 202473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->last_queuefull_same_count = 0; 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 202673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_REQUEUE_REQ); 202773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scsi_status(scb, SCSI_STATUS_OK); 2028f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_platform_set_tags(ahd, sdev, &devinfo, 202973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (dev->flags & AHD_DEV_Q_BASIC) 203073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED); 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 203473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Drop down to a single opening, and treat this 203573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * as if the target returned BUSY SCSI status. 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 203773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 2038f89d0a4e1d01168f20f9e8273de7dfc094b2a430Hannes Reinecke ahd_platform_set_tags(ahd, sdev, &devinfo, 203973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (dev->flags & AHD_DEV_Q_BASIC) 204073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED); 204173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scsi_status(scb, SCSI_STATUS_BUSY); 204273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 204573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 204673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd) 20471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20486902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int status; 20496902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int new_status = DID_OK; 20506902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int do_fallback = 0; 20516902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke int scsi_status; 20526902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 205473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Map CAM error codes into Linux Error codes. We 205573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * avoid the conversion so that the DV code has the 205673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * full error information available when making 205773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * state change decisions. 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20596902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 20606902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke status = ahd_cmd_get_transaction_status(cmd); 20616902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke switch (status) { 20626902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_INPROG: 20636902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_CMP: 20646902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_OK; 20656902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 20666902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_AUTOSENSE_FAIL: 20676902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_ERROR; 20686902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke /* Fallthrough */ 20696902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_SCSI_STATUS_ERROR: 20706902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke scsi_status = ahd_cmd_get_scsi_status(cmd); 20716902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 20726902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke switch(scsi_status) { 20736902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case SCSI_STATUS_CMD_TERMINATED: 20746902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case SCSI_STATUS_CHECK_COND: 20756902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if ((cmd->result >> 24) != DRIVER_SENSE) { 20766902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke do_fallback = 1; 20776902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } else { 20786902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke struct scsi_sense_data *sense; 20796902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 20806902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke sense = (struct scsi_sense_data *) 2081c1c9ce52c8674a981af5104e16f3d63f76521563FUJITA Tomonori cmd->sense_buffer; 20826902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (sense->extra_len >= 5 && 20836902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke (sense->add_sense_code == 0x47 20846902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke || sense->add_sense_code == 0x48)) 20856902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke do_fallback = 1; 20866902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 208773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 208873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 208973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 209073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 20916902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 20926902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_ABORTED: 20936902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_ABORT; 20946902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 20956902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_BUSY: 20966902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_BUS_BUSY; 20976902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 20986902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_INVALID: 20996902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_PATH_INVALID: 21006902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_BAD_TARGET; 21016902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 21026902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_SEL_TIMEOUT: 21036902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_NO_CONNECT; 21046902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 21056902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_SCSI_BUS_RESET: 21066902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_BDR_SENT: 21076902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_RESET; 21086902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 21096902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_UNCOR_PARITY: 21106902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_PARITY; 21116902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke do_fallback = 1; 21126902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 21136902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_CMD_TIMEOUT: 21146902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_TIME_OUT; 21156902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke do_fallback = 1; 21166902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 21176902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_CMP_ERR: 21186902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_UNEXP_BUSFREE: 21196902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_DATA_RUN_ERR: 21206902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_ERROR; 21216902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke do_fallback = 1; 21226902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 21236902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_UA_ABORT: 21246902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_NO_HBA: 21256902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_SEQUENCE_FAIL: 21266902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_CCB_LEN_ERR: 21276902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_PROVIDE_FAIL: 21286902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_TERMIO: 21296902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_UNREC_HBA_ERROR: 21306902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQ_TOO_BIG: 21316902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_ERROR; 21326902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 21336902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke case CAM_REQUEUE_REQ: 21346902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_REQUEUE; 21356902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 21366902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke default: 21376902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke /* We should never get here */ 21386902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke new_status = DID_ERROR; 21396902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke break; 21406902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke } 214173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 21426902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (do_fallback) { 214348813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: device overrun (status %x) on %d:%d:%d\n", 21446902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_name(ahd), status, cmd->device->channel, 21456902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke cmd->device->id, cmd->device->lun); 214673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 214773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 21486902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_cmd_set_transaction_status(cmd, new_status); 21496902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke 215073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->scsi_done(cmd); 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2153e3e0ca5143d7a78522df30b75bd1acfcf80c2a38Adrian Bunkstatic void 215473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_freeze_simq(struct ahd_softc *ahd) 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21567b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke scsi_block_requests(ahd->platform_data->host); 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2159e3e0ca5143d7a78522df30b75bd1acfcf80c2a38Adrian Bunkstatic void 216073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_release_simq(struct ahd_softc *ahd) 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21627b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke scsi_unblock_requests(ahd->platform_data->host); 216373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 21641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 216573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 21666902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reineckeahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd) 216773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 216873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 216973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 217073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *pending_scb; 217173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int saved_scbptr; 217273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int active_scbptr; 217373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int last_phase; 217473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int saved_scsiid; 217573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int cdb_byte; 217673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int retval; 217773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int was_paused; 217873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int paused; 217973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int wait; 218073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int disconnected; 218173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_mode_state saved_modes; 21824065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig unsigned long flags; 218373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 218473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb = NULL; 218573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke paused = FALSE; 218673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = FALSE; 218773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 218873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2189017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, 21906902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke "Attempting to queue an ABORT message:"); 219173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 219248813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("CDB:"); 219373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++) 219448813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk(" 0x%x", cmd->cmnd[cdb_byte]); 219548813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("\n"); 219673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 21974065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig ahd_lock(ahd, &flags); 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 220073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * First determine if we currently own this command. 220173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Start by searching the device queue. If not found 220273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * there, check the pending_scb list. If not found 220373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * at all, and the system wanted us to just abort the 220473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * command, return success. 22051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 220673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(cmd->device); 220773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 220873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev == NULL) { 220973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 221073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * No target device for this command exists, 221173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we must not still own the command. 221273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 2213017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Is not an active device\n"); 221473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = SUCCESS; 221573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 221673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 221973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * See if we can find a matching cmd in the pending list. 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 222173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) { 222273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (pending_scb->io_ctx == cmd) 222373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 222673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (pending_scb == NULL) { 2227017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Command not found\n"); 222873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 223173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_RECOVERY_SCB) != 0) { 223273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 223373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We can't queue two recovery actions using the same SCB 223473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 223573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 223673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto done; 223773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 22381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 224073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Ensure that the card doesn't do anything 224173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * behind our back. Also make sure that we 224273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * didn't "just" miss an interrupt that would 224373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * affect this cmd. 22441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 224573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke was_paused = ahd_is_paused(ahd); 224673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_pause_and_flushwork(ahd); 224773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke paused = TRUE; 22481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 224973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_ACTIVE) == 0) { 2250017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Command already completed\n"); 225173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 225273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 22531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 225448813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: At time of recovery, card was %spaused\n", 225573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), was_paused ? "" : "not "); 225673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_dump_card_state(ahd); 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 225873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = TRUE; 22596902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (ahd_search_qinfifo(ahd, cmd->device->id, 22606902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke cmd->device->channel + 'A', 22616902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke cmd->device->lun, 22626902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke pending_scb->hscb->tag, 22636902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ROLE_INITIATOR, CAM_REQ_ABORTED, 22646902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke SEARCH_COMPLETE) > 0) { 226548813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s:%d:%d:%d: Cmd aborted from QINFIFO\n", 22666902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke ahd_name(ahd), cmd->device->channel, 22676902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke cmd->device->id, cmd->device->lun); 22686902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke retval = SUCCESS; 22696902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke goto done; 227073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 22711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 227273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_modes = ahd_save_modes(ahd); 227373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); 227473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke last_phase = ahd_inb(ahd, LASTPHASE); 227573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_scbptr = ahd_get_scbptr(ahd); 227673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke active_scbptr = saved_scbptr; 22776902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (disconnected && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) { 227873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *bus_scb; 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 228073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_scb = ahd_lookup_scb(ahd, active_scbptr); 228173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bus_scb == pending_scb) 228273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = FALSE; 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 228473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 228573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 228673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * At this point, pending_scb is the scb associated with the 228773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * passed in command. That command is currently active on the 228873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * bus or is in the disconnected state. 228973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 229073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_scsiid = ahd_inb(ahd, SAVED_SCSIID); 22916902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke if (last_phase != P_BUSFREE 22926902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke && SCB_GET_TAG(pending_scb) == active_scbptr) { 229373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 22941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 229573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We're active on the bus, so assert ATN 229673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * and hope that the target responds. 22971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 229873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb = ahd_lookup_scb(ahd, active_scbptr); 22996902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT; 230073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, MSG_OUT, HOST_MSG); 230173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCSISIGO, last_phase|ATNO); 23026902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke scmd_printk(KERN_INFO, cmd, "Device is active, asserting ATN\n"); 230373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = TRUE; 230473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (disconnected) { 230573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 230673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 230773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Actually re-queue this SCB in an attempt 230873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to select the device before it reconnects. 230973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 23106902f41610d631f74cfca7c61eac7b0950dd8990Hannes Reinecke pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT; 231173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scbptr(ahd, SCB_GET_TAG(pending_scb)); 231273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->cdb_len = 0; 231373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_attribute = 0; 231473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_management = SIU_TASKMGMT_ABORT_TASK; 231573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 231673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_PACKETIZED) != 0) { 23171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 231873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Mark the SCB has having an outstanding 231973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * task management function. Should the command 232073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * complete normally before the task management 232173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * function can be sent, the host will be notified 232273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to abort our requeued SCB. 23231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 232473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCB_TASK_MANAGEMENT, 232573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_management); 232673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 232773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 232873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * If non-packetized, set the MK_MESSAGE control 232973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * bit indicating that we desire to send a message. 233073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We also set the disconnected flag since there is 233173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * no guarantee that our SCB control byte matches 233273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the version on the card. We don't want the 233373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * sequencer to abort the command thinking an 233473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * unsolicited reselection occurred. 233573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 233673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->control |= MK_MESSAGE|DISCONNECTED; 233773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 233873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 233973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * The sequencer will never re-reference the 234073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * in-core SCB. To make sure we are notified 2341b71a8eb0fa64ec6d00175f479e3ef851703568afUwe Kleine-König * during reselection, set the MK_MESSAGE flag in 234273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the card's copy of the SCB. 234373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 234473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCB_CONTROL, 234573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_inb(ahd, SCB_CONTROL)|MK_MESSAGE); 23461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 234773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 23481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 234973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Clear out any entries in the QINFIFO first 235073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we are the next SCB for this target 235173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to run. 23521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 235373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_search_qinfifo(ahd, cmd->device->id, 235473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->channel + 'A', cmd->device->lun, 235573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_LIST_NULL, ROLE_INITIATOR, 235673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_REQUEUE_REQ, SEARCH_COMPLETE); 235773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_qinfifo_requeue_tail(ahd, pending_scb); 235873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scbptr(ahd, saved_scbptr); 235973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, pending_scb); 236048813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Device is disconnected, re-queuing SCB\n"); 236173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = TRUE; 236273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 2363017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Unable to deliver message\n"); 236473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 236573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto done; 23661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 236873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeno_cmd: 23691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 237073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Our assumption is that if we don't have the command, no 237173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * recovery action was required, so we return success. Again, 237273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the semantics of the mid-layer recovery engine are not 237373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * well defined, so this may change in time. 23741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 237573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = SUCCESS; 237673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckedone: 237773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (paused) 237873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unpause(ahd); 237973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (wait) { 23806e9a4738c9fadb7cbdcabc1e3b415159f3741ed9Peter Zijlstra DECLARE_COMPLETION_ONSTACK(done); 23811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23827b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd->platform_data->eh_done = &done; 23834065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig ahd_unlock(ahd, &flags); 23844065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig 238548813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: Recovery code sleeping\n", ahd_name(ahd)); 23867b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke if (!wait_for_completion_timeout(&done, 5 * HZ)) { 23877b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_lock(ahd, &flags); 23887b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd->platform_data->eh_done = NULL; 23897b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_unlock(ahd, &flags); 239048813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: Timer Expired (active %d)\n", 239111668bb673c41ec169a85d0b52c538a1c11d29e1Hannes Reinecke ahd_name(ahd), dev->active); 239273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 23931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 239448813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("Recovery code awake\n"); 2395eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke } else 2396eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke ahd_unlock(ahd, &flags); 2397eb221849540b7f4165c58b6c79d98b97ac902fdbHannes Reinecke 23987b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke if (retval != SUCCESS) 239948813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: Command abort returning 0x%x\n", 24007b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke ahd_name(ahd), retval); 24017b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke 24027b22da38b64a32df20fdb7272deb7546045fccecHannes Reinecke return retval; 24031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 240573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_width(struct scsi_target *starget, int width) 24061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 240773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 240873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 240973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 241073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 24111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 241273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 241373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 241473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 241573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE); 241673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 241773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 241873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 241973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_period(struct scsi_target *starget, int period) 242073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 242173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 242273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 242373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 242473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 242573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 242673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 242773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 242873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 242973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options; 2430a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 243173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 243273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long offset = tinfo->goal.offset; 24331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2434a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2435a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 243648813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: set period to %d\n", ahd_name(ahd), period); 2437a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 243873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (offset == 0) 243973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke offset = MAX_OFFSET; 24401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 244173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period < 8) 244273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke period = 8; 244373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period < 10) { 24440f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley if (spi_max_width(starget)) { 24450f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley ppr_options |= MSG_EXT_PPR_DT_REQ; 24460f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley if (period == 8) 24470f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley ppr_options |= MSG_EXT_PPR_IU_REQ; 24480f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley } else 24490f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley period = 10; 24501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2452a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2453a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 245473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 245573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 24561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 245773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* all PPR requests apart from QAS require wide transfers */ 245873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ppr_options & ~MSG_EXT_PPR_QAS_REQ) { 245973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (spi_width(starget) == 0) 246073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options &= MSG_EXT_PPR_QAS_REQ; 24611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 246273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2463a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2464a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2465a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 246673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 246773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, offset, 246873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 246973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 24701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 247273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_offset(struct scsi_target *starget, int offset) 24731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 247473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 247573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 247673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 247773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 247873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 247973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 248073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 248173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 248273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = 0; 248373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = 0; 2484a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 248573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 248673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2487a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2488a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 248948813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: set offset to %d\n", ahd_name(ahd), offset); 2490a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2491a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 249273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 249373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 249473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (offset != 0) { 249573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke period = tinfo->goal.period; 249673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options = tinfo->goal.ppr_options; 2497a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2498a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 24991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2500a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 250173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 250273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options, 250373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, FALSE); 250473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 25051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 250773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_dt(struct scsi_target *starget, int dt) 25081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 250973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 251073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 251173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 251273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 251373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 251473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 251573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 251673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 251773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 251873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_DT_REQ; 251973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 252052b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke unsigned int width = tinfo->goal.width; 252173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 252273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2523a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2524a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 252548813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: %s DT\n", ahd_name(ahd), 2526a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? "enabling" : "disabling"); 2527a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 25280f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley if (dt && spi_max_width(starget)) { 252973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; 253052b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke if (!width) 253152b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke ahd_linux_set_width(starget, 1); 2532a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } else { 2533a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (period <= 9) 2534a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke period = 10; /* If resetting DT, period must be >= 25ns */ 2535a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke /* IU is invalid without DT set */ 2536a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2537a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 253873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 253973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 254073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 254173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2542a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 254373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 254473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 254573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 254673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 25471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 254973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_qas(struct scsi_target *starget, int qas) 25501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 255173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 255273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 255373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 255473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 255573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 255673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 255773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 255873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 255973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 256073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_QAS_REQ; 256173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 2562a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 256373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 256473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2565a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2566a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 256748813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: %s QAS\n", ahd_name(ahd), 2568a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke qas ? "enabling" : "disabling"); 2569a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2570a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2571a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (qas) { 2572a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_QAS_REQ; 2573a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2574a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2575a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 257673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 257773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 257873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 257973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 258073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2581a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 258273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 258373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 258473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 258573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 25861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 258873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_iu(struct scsi_target *starget, int iu) 25891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 259073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 259173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 259273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 259373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 259473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 259573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 259673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 259773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 259873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 259973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_IU_REQ; 260073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 2601a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 260273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 260373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2604a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2605a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 260648813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: %s IU\n", ahd_name(ahd), 2607a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke iu ? "enabling" : "disabling"); 2608a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2609a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 26100f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley if (iu && spi_max_width(starget)) { 261173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_IU_REQ; 2612a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */ 2613a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2614a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2615a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 261673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 261773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 261873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 261973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 262073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2621a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 262273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 262373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 262473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 262573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 262673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 26271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 262873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm) 262973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 263073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 263173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 263273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 263373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 263473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 263573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 263673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 263773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 263873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 263973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_RD_STRM; 264073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 264173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 264273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 264373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2644a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2645a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 264648813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: %s Read Streaming\n", ahd_name(ahd), 2647a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke rdstrm ? "enabling" : "disabling"); 2648a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2649a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 26500f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley if (rdstrm && spi_max_width(starget)) 265173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_RD_STRM; 265273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 265373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 265473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 265573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 265673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2657a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2658a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2659a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2660a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2661a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2662a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2663a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2664a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_wr_flow(struct scsi_target *starget, int wrflow) 2665a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2666a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2667a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2668a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2669a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2670a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2671a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2672a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2673a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2674a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2675a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_WR_FLOW; 2676a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2677a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2678a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2679a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2680a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2681a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 268248813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: %s Write Flow Control\n", ahd_name(ahd), 2683a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke wrflow ? "enabling" : "disabling"); 2684a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2685a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 26860f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley if (wrflow && spi_max_width(starget)) 2687a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_WR_FLOW; 2688a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2689a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2690a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2691a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2692a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2693a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2694a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2695a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2696a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2697a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2698a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2699a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2700a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_rti(struct scsi_target *starget, int rti) 2701a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2702a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2703a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2704a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2705a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2706a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2707a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2708a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2709a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2710a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2711a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_RTI; 2712a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2713a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2714a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2715a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2716a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd->features & AHD_RTI) == 0) { 2717a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2718a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 271948813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: RTI not available\n", ahd_name(ahd)); 2720a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2721a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke return; 2722a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2723a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2724a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2725a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 272648813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: %s RTI\n", ahd_name(ahd), 2727a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke rti ? "enabling" : "disabling"); 2728a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2729a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 27300f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley if (rti && spi_max_width(starget)) 2731a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_RTI; 2732a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2733a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2734a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2735a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2736a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2737a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2738a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2739a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2740a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2741a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2742a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2743a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2744a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp) 2745a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2746a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2747a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2748a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2749a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2750a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2751a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2752a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2753a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2754a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2755a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_PCOMP_EN; 2756a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2757a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2758a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2759a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2760a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2761a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 276248813cf989eb8695fe84df30207fc8ff5f15783cPekka Enberg printk("%s: %s Precompensation\n", ahd_name(ahd), 2763a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke pcomp ? "Enable" : "Disable"); 2764a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2765a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 27660f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley if (pcomp && spi_max_width(starget)) { 2767843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke uint8_t precomp; 2768843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke 2769843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) { 2770980b306a297725d4f25c779ca15086de757acadfDenys Vlasenko const struct ahd_linux_iocell_opts *iocell_opts; 2771843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke 2772843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke iocell_opts = &aic79xx_iocell_info[ahd->unit]; 2773843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke precomp = iocell_opts->precomp; 2774843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke } else { 2775843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke precomp = AIC79XX_DEFAULT_PRECOMP; 2776843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke } 2777a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_PCOMP_EN; 2778843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke AHD_SET_PRECOMP(ahd, precomp); 2779843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke } else { 2780843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke AHD_SET_PRECOMP(ahd, 0); 2781843822ad631889596d67716e6edbcde608aeba81Hannes Reinecke } 2782a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2783a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2784a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2785a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2786a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2787a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 278873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 278973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 279073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 279173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 27921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 279488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomleystatic void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold) 279588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley{ 279688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 279788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 279888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_tmode_tstate *tstate; 279988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_initiator_tinfo *tinfo 280088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley = ahd_fetch_transinfo(ahd, 280188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley starget->channel + 'A', 280288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley shost->this_id, starget->id, &tstate); 280388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_devinfo devinfo; 280488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int ppr_options = tinfo->goal.ppr_options 280588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley & ~MSG_EXT_PPR_HOLD_MCS; 280688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int period = tinfo->goal.period; 280788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 280888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned long flags; 280988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 28100f82cb9211f800f77636af11f0670e5fc6de6256James Bottomley if (hold && spi_max_width(starget)) 281188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ppr_options |= MSG_EXT_PPR_HOLD_MCS; 281288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 281388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 281488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley starget->channel + 'A', ROLE_INITIATOR); 281588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_find_syncrate(ahd, &period, &ppr_options, 281688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 281788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 281888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_lock(ahd, &flags); 281988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 282088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ppr_options, AHD_TRANS_GOAL, FALSE); 282188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_unlock(ahd, &flags); 282288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley} 282388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 2824d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reineckestatic void ahd_linux_get_signalling(struct Scsi_Host *shost) 2825d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke{ 2826d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; 2827d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke unsigned long flags; 2828d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke u8 mode; 282988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 2830d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke ahd_lock(ahd, &flags); 2831d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke ahd_pause(ahd); 2832d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke mode = ahd_inb(ahd, SBLKCTL); 2833d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke ahd_unpause(ahd); 2834d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke ahd_unlock(ahd, &flags); 2835d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke 2836d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke if (mode & ENAB40) 2837d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke spi_signalling(shost) = SPI_SIGNAL_LVD; 2838d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke else if (mode & ENAB20) 2839d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke spi_signalling(shost) = SPI_SIGNAL_SE; 2840d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke else 2841d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke spi_signalling(shost) = SPI_SIGNAL_UNKNOWN; 2842d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke} 284388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 284473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic struct spi_function_template ahd_linux_transport_functions = { 284573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_offset = ahd_linux_set_offset, 284673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_offset = 1, 284773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_period = ahd_linux_set_period, 284873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_period = 1, 284973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_width = ahd_linux_set_width, 285073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_width = 1, 285173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_dt = ahd_linux_set_dt, 285273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_dt = 1, 285373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_iu = ahd_linux_set_iu, 285473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_iu = 1, 285573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_qas = ahd_linux_set_qas, 285673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_qas = 1, 285773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_rd_strm = ahd_linux_set_rd_strm, 285873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_rd_strm = 1, 2859a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_wr_flow = ahd_linux_set_wr_flow, 2860a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_wr_flow = 1, 2861a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_rti = ahd_linux_set_rti, 2862a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_rti = 1, 2863a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_pcomp_en = ahd_linux_set_pcomp_en, 2864a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_pcomp_en = 1, 286588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley .set_hold_mcs = ahd_linux_set_hold_mcs, 286688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley .show_hold_mcs = 1, 2867d6b9ccbbeb625674891f797119f06512d27fc905Hannes Reinecke .get_signalling = ahd_linux_get_signalling, 286873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke}; 286973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 28701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init 28711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_init(void) 28721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 287385a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig int error = 0; 287485a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 287585a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig /* 287685a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig * If we've been passed any parameters, process them now. 287785a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig */ 287885a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig if (aic79xx) 287985a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig aic79xx_setup(aic79xx); 288085a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 288185a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig ahd_linux_transport_template = 288285a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig spi_attach_transport(&ahd_linux_transport_functions); 288373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!ahd_linux_transport_template) 288473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return -ENODEV; 288585a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 288673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_transport_reserve_device(ahd_linux_transport_template, 288773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(struct ahd_linux_device)); 2888a80b3424d9fde3c4b6d62adaf6dda78128dc5c27James Bottomley 288985a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig error = ahd_linux_pci_init(); 289085a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig if (error) 289185a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig spi_release_transport(ahd_linux_transport_template); 289285a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig return error; 28931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 28941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit 28961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_exit(void) 28971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 28981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_linux_pci_exit(); 289973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_release_transport(ahd_linux_transport_template); 29001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 29011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ahd_linux_init); 29031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(ahd_linux_exit); 2904