aic79xx_osm.c revision e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Adaptec AIC79xx device driver for Linux. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.c#171 $ 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -------------------------------------------------------------------------- 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 1994-2000 Justin T. Gibbs. 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 1997-1999 Doug Ledford 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2000-2003 Adaptec Inc. 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * All rights reserved. 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Redistribution and use in source and binary forms, with or without 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * modification, are permitted provided that the following conditions 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * are met: 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. Redistributions of source code must retain the above copyright 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * notice, this list of conditions, and the following disclaimer, 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * without modification. 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. Redistributions in binary form must reproduce at minimum a disclaimer 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * substantially similar to the "NO WARRANTY" disclaimer below 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ("Disclaimer") and any redistribution must be conditioned upon 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * including a substantially similar Disclaimer requirement for further 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * binary redistribution. 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. Neither the names of the above-listed copyright holders nor the names 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of any contributors may be used to endorse or promote products derived 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from this software without specific prior written permission. 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternatively, this software may be distributed under the terms of the 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License ("GPL") version 2 as published by the Free 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Software Foundation. 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NO WARRANTY 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * POSSIBILITY OF SUCH DAMAGES. 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "aic79xx_osm.h" 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "aic79xx_inline.h" 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsicam.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic struct scsi_transport_template *ahd_linux_transport_template = NULL; 5073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> /* __setup */ 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> /* For fetching system memory size */ 5373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#include <linux/blkdev.h> /* For block_size() */ 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> /* For ssleep/msleep */ 55017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik#include <linux/device.h> 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bucket size for counting good commands in between bad ones. 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHD_LINUX_ERR_THRESH 1000 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set this to the delay in seconds after SCSI bus reset. 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note, we honor this only for the initial bus reset. 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The scsi error recovery code performs its own bus settle 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * delay handling for error recovery actions. 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC79XX_RESET_DELAY_MS 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_RESET_DELAY CONFIG_AIC79XX_RESET_DELAY_MS 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_RESET_DELAY 5000 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * To change the default number of tagged transactions allowed per-device, 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add a line to the lilo.conf file like: 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * append="aic79xx=verbose,tag_info:{{32,32,32,32},{32,32,32,32}}" 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * which will result in the first four devices on the first two 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * controllers being set to a tagged queue depth of 32. 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The tag_commands is an array of 16 to allow for wide and twin adapters. 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Twin adapters will use indexes 0-7 for channel 0, and indexes 8-15 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for channel 1. 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct { 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint16_t tag_commands[16]; /* Allow for wide/twin adapters. */ 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} adapter_tag_info_t; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Modify this as you see fit for your system. 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 tagged queuing disabled 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 <= n <= 253 n == max tags ever dispatched. 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The driver will throttle the number of commands dispatched to a 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device if it returns queue full. For devices with a fixed maximum 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * queue depth, the driver will eventually determine this depth and 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * lock it in (a console message is printed to indicate that a lock 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has occurred). On some devices, queue full is returned for a temporary 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * resource shortage. These devices will return queue full at varying 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * depths. The driver will throttle back when the queue fulls occur and 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attempt to slowly increase the depth over time as the device recovers 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from the resource shortage. 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * In this example, the first line will disable tagged queueing for all 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the devices on the first probed aic79xx adapter. 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The second line enables tagged queueing with 4 commands/LUN for IDs 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (0, 2-11, 13-15), disables tagged queueing for ID 12, and tells the 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * driver to attempt to use up to 64 tags for ID 1. 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The third line is the same as the first line. 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The fourth line disables tagged queueing for devices 0 and 3. It 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * enables tagged queueing for the other IDs, with 16 commands/LUN 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for IDs 1 and 4, 127 commands/LUN for ID 8, and 4 commands/LUN for 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * IDs 2, 5-7, and 9-15. 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NOTE: The below structure is for reference only, the actual structure 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to modify in order to change things is just below this comment block. 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsadapter_tag_info_t aic79xx_tag_info[] = 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{4, 64, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 4, 4, 4}}, 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 16, 4, 0, 16, 4, 4, 4, 127, 4, 4, 4, 4, 4, 4, 4}} 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds*/ 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC79XX_CMDS_PER_DEVICE 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CMDS_PER_DEVICE CONFIG_AIC79XX_CMDS_PER_DEVICE 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CMDS_PER_DEVICE AHD_MAX_QUEUE 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CONFIGED_TAG_COMMANDS { \ 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE \ 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * By default, use the number of commands specified by 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the users kernel configuration. 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic adapter_tag_info_t aic79xx_tag_info[] = 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS} 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The I/O cell on the chip is very configurable in respect to its analog 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * characteristics. Set the defaults here; they can be overriden with 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the proper insmod parameters. 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahd_linux_iocell_opts 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t precomp; 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t slewrate; 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t amplitude; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_PRECOMP 0xFF 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_SLEWRATE 0xFF 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_AMPLITUDE 0xFF 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_IOOPTS \ 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_PRECOMP, \ 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_SLEWRATE, \ 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_AMPLITUDE \ 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_PRECOMP_INDEX 0 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_SLEWRATE_INDEX 1 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_AMPLITUDE_INDEX 2 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct ahd_linux_iocell_opts aic79xx_iocell_info[] = 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There should be a specific return value for this in scsi.h, but 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it seems that most drivers ignore it. 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DID_UNDERFLOW DID_ERROR 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_print_path(struct ahd_softc *ahd, struct scb *scb) 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("(scsi%d:%c:%d:%d): ", 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd->platform_data->host->host_no, 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_CHANNEL(ahd, scb) : 'X', 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_TARGET(ahd, scb) : -1, 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_LUN(scb) : -1); 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * XXX - these options apply unilaterally to _all_ adapters 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cards in the system. This should be fixed. Exceptions to this 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * rule are noted in the comments. 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Skip the scsi bus reset. Non 0 make us skip the reset at startup. This 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has no effect on any later resets that might occur due to things like 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * SCSI bus timeouts. 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_no_reset; 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Certain PCI motherboards will scan PCI devices from highest to lowest, 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * others scan from lowest to highest, and they tend to do all kinds of 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * strange things when they come into contact with PCI bridge chips. The 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * net result of all this is that the PCI card that is actually used to boot 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the machine is very hard to detect. Most motherboards go from lowest 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCI slot number to highest, and the first SCSI controller found is the 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * one you boot from. The only exceptions to this are when a controller 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has its BIOS disabled. So, we by default sort all of our SCSI controllers 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from lowest PCI slot number to highest PCI slot number. We also force 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * all controllers with their BIOS disabled to the end of the list. This 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * works on *almost* all computers. Where it doesn't work, we have this 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * option. Setting this option to non-0 will reverse the order of the sort 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to highest first, then lowest, but will still leave cards with their BIOS 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * disabled at the very end. That should fix everyone up unless there are 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * really strange cirumstances. 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_reverse_scan; 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should we force EXTENDED translation on a controller. 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 == Use whatever is in the SEEPROM or default to off 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 == Use whatever is in the SEEPROM or default to on 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_extended; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCI bus parity checking of the Adaptec controllers. This is somewhat 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * dubious at best. To my knowledge, this option has never actually 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * solved a PCI parity problem, but on certain machines with broken PCI 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * chipset configurations, it can generate tons of false error messages. 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It's included in the driver for completeness. 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 = Shut off PCI parity check 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * non-0 = Enable PCI parity check 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NOTE: you can't actually pass -1 on the lilo prompt. So, to set this 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * variable to -1 you would actually want to simply pass the variable 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * name without a number. That will invert the 0 which will result in 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -1. 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_pci_parity = ~0; 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There are lots of broken chipsets in the world. Some of them will 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * violate the PCI spec when we issue byte sized memory writes to our 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * controller. I/O mapped register access, if allowed by the given 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * platform, will work in almost all cases. 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsuint32_t aic79xx_allow_memio = ~0; 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * So that we can set how long each device is given as a selection timeout. 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The table of values goes like this: 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 - 256ms 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 - 128ms 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 - 64ms 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3 - 32ms 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We default to 256ms because some older devices need a longer time 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to respond to initial selection. 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_seltime; 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Certain devices do not perform any aging on commands. Should the 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device be saturated by commands in one portion of the disk, it is 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * possible for transactions on far away sectors to never be serviced. 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * To handle these devices, we can periodically send an ordered tag to 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * force all outstanding transactions to be serviced prior to a new 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * transaction. 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsuint32_t aic79xx_periodic_otag; 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Module information and settable options. 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *aic79xx = NULL; 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("Maintainer: Justin T. Gibbs <gibbs@scsiguy.com>"); 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("Adaptec Aic790X U320 SCSI Host Bus Adapter driver"); 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("Dual BSD/GPL"); 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_VERSION(AIC79XX_DRIVER_VERSION); 32673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckemodule_param(aic79xx, charp, 0444); 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(aic79xx, 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds"period delimited, options string.\n" 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" verbose Enable verbose/diagnostic logging\n" 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" allow_memio Allow device registers to be memory mapped\n" 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" debug Bitmask of debug values to enable\n" 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" no_reset Supress initial bus resets\n" 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" extended Enable extended geometry on all controllers\n" 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" periodic_otag Send an ordered tagged transaction\n" 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" periodically to prevent tag starvation.\n" 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" This may be required by some older disk\n" 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" or drives/RAID arrays.\n" 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" reverse_scan Sort PCI devices highest Bus/Slot to lowest\n" 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" tag_info:<tag_str> Set per-target tag depth\n" 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" global_tag_depth:<int> Global tag depth for all targets on all buses\n" 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" slewrate:<slewrate_list>Set the signal slew rate (0-15).\n" 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" precomp:<pcomp_list> Set the signal precompensation (0-7).\n" 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" amplitude:<int> Set the signal amplitude (0-7).\n" 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" seltime:<int> Selection Timeout:\n" 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" (0/256ms,1/128ms,2/64ms,3/32ms)\n" 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds"\n" 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Sample /etc/modprobe.conf line:\n" 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Enable verbose logging\n" 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Set tag depth on Controller 2/Target 2 to 10 tags\n" 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Shorten the selection timeout to 128ms\n" 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds"\n" 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" options aic79xx 'aic79xx=verbose.tag_info:{{}.{}.{..10}}.seltime:1'\n" 35373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"\n"); 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_handle_scsi_status(struct ahd_softc *, 35673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_device *, 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scb *); 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, 35973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd); 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_sem_timeout(u_long arg); 36173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag); 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd); 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u_int ahd_linux_user_tagdepth(struct ahd_softc *ahd, 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_devinfo *devinfo); 36573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_device_queue_depth(struct scsi_device *); 36660a13213840296b1e32d6781653a0eaa83d04382Hannes Reineckestatic int ahd_linux_run_command(struct ahd_softc*, 36773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *, 36860a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke struct scsi_cmnd *); 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_setup_tag_info_global(char *p); 37073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int aic79xx_setup(char *c); 37185a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 37285a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwigstatic int ahd_linux_unit; 37385a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/****************************** Inlines ***************************************/ 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*); 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb) 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 38173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int direction; 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd = scb->io_ctx; 385be7db055dd7261522557046370f49160728e3847<hch@lst.de> direction = cmd->sc_data_direction; 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE); 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cmd->use_sg != 0) { 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scatterlist *sg; 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sg = (struct scatterlist *)cmd->request_buffer; 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unmap_sg(ahd->dev_softc, sg, cmd->use_sg, direction); 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (cmd->request_bufflen != 0) { 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unmap_single(ahd->dev_softc, 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb->platform_data->buf_busaddr, 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd->request_bufflen, direction); 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************** Macros **************************************/ 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUILD_SCSIID(ahd, cmd) \ 401422c0d61d591cbfb70f029e13505fb437e169d68Jeff Garzik (((scmd_id(cmd) << TID_SHIFT) & TID) | (ahd)->our_id) 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return a string describing the driver. 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const char * 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_info(struct Scsi_Host *host) 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static char buffer[512]; 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char ahd_info[256]; 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *bp; 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp = &buffer[0]; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)host->hostdata; 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(bp, 0, sizeof(buffer)); 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev "); 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, AIC79XX_DRIVER_VERSION); 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, "\n"); 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, " <"); 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ahd->description); 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ">\n"); 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, " "); 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_controller_info(ahd, ahd_info); 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ahd_info); 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, "\n"); 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (bp); 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Queue an SCB to the controller. 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 43573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_queue(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *)) 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 43873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev = scsi_transport_device_data(cmd->device); 4394065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig int rtn = SCSI_MLQUEUE_HOST_BUSY; 4404065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig unsigned long flags; 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4444065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig ahd_lock(ahd, &flags); 4454065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig if (ahd->platform_data->qfrozen == 0) { 4464065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig cmd->scsi_done = scsi_done; 4474065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig cmd->result = CAM_REQ_INPROG << 16; 4484065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig rtn = ahd_linux_run_command(ahd, dev, cmd); 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4514065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig ahd_unlock(ahd, &flags); 4524065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig return rtn; 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 45573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic inline struct scsi_target ** 45673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_in_softc(struct scsi_target *starget) 45773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 45873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 45973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata); 46073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int target_offset; 46173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 46273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_offset = starget->id; 46373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (starget->channel != 0) 46473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_offset += 8; 46573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 46673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return &ahd->platform_data->starget[target_offset]; 46773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 46873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 47073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_alloc(struct scsi_target *starget) 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 47273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 47373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata); 47473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 47573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget); 47673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ = scsi_transport_target_data(starget); 47773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 47873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 47973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 48073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char channel = starget->channel + 'A'; 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 48273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 48373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 48473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(*ahd_targp != NULL); 48573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 48673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ahd_targp = starget; 48773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(targ, 0, sizeof(*targ)); 48873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 48973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, 49073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->id, &tstate); 49173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, ahd->our_id, starget->id, 49273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, channel, 49373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 49473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_min_period(starget) = AHD_SYNCRATE_MAX; /* We can do U320 */ 49573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0) 49673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_max_offset(starget) = MAX_OFFSET_PACED_BUG; 49773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else 49873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_max_offset(starget) = MAX_OFFSET_PACED; 49973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_max_width(starget) = ahd->features & AHD_WIDE; 50073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 50173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, 0, 0, 0, 50273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, /*paused*/FALSE); 50373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 50473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, /*paused*/FALSE); 50573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 50673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 50773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 50873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 50973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 51073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 51173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_destroy(struct scsi_target *starget) 51273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 51373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget); 51473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 51573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ahd_targp = NULL; 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 51973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_slave_alloc(struct scsi_device *sdev) 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 52173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 52273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)sdev->host->hostdata); 52373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget = sdev->sdev_target; 52473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ = scsi_transport_target_data(starget); 52573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bootverbose) 52873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: Slave Alloc %d\n", ahd_name(ahd), sdev->id); 52973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 53073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(targ->sdev[sdev->lun] != NULL); 53173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 53273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(sdev); 53373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(dev, 0, sizeof(*dev)); 53473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 53573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 53673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We start out life using untagged 53773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * transactions of which we allow one. 53873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 53973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 54073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 54273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Set maxtags to 0. This will be changed if we 54373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * later determine that we are dealing with 54473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * a tagged queuing capable device. 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 54673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = 0; 54773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 54873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke targ->sdev[sdev->lun] = sdev; 54973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 55373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 55473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_slave_configure(struct scsi_device *sdev) 55573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 55673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 55773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 55873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = *((struct ahd_softc **)sdev->host->hostdata); 55973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 560017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik sdev_printk(KERN_INFO, sdev, "Slave Configure\n"); 56173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 56273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_device_queue_depth(sdev); 56373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 56473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Initial Domain Validation */ 56573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!spi_initial_dv(sdev->sdev_target)) 56673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_dv_device(sdev); 56773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 56873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 56973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 57073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 57273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_slave_destroy(struct scsi_device *sdev) 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 57573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev = scsi_transport_device_data(sdev); 57673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ = scsi_transport_target_data(sdev->sdev_target); 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 57873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = *((struct ahd_softc **)sdev->host->hostdata); 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bootverbose) 58073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: Slave Destroy %d\n", ahd_name(ahd), sdev->id); 58173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 58273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(dev->active); 58373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 58473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke targ->sdev[sdev->lun] = NULL; 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(__i386__) 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return the disk geometry for the given SCSI device. 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_biosparam(struct scsi_device *sdev, struct block_device *bdev, 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sector_t capacity, int geom[]) 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t *bh; 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int heads; 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sectors; 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cylinders; 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int extended; 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *((struct ahd_softc **)sdev->host->hostdata); 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bh = scsi_bios_ptable(bdev); 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bh) { 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = scsi_partsize(bh, capacity, 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &geom[2], &geom[0], &geom[1]); 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(bh); 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret != -1) 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ret); 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds heads = 64; 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sectors = 32; 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cylinders = aic_sector_div(capacity, heads, sectors); 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (aic79xx_extended != 0) 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extended = 1; 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extended = (ahd->flags & AHD_EXTENDED_TRANS_A) != 0; 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (extended && cylinders >= 1024) { 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds heads = 255; 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sectors = 63; 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cylinders = aic_sector_div(capacity, heads, sectors); 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[0] = heads; 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[1] = sectors; 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[2] = cylinders; 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Abort the current SCSI command(s). 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 63873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_abort(struct scsi_cmnd *cmd) 63973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 64073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int error; 64173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 64273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke error = ahd_linux_queue_recovery_cmd(cmd, SCB_ABORT); 64373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (error != 0) 64473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("aic79xx_abort returns 0x%x\n", error); 64573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return error; 64673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 64773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 64873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 64973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Attempt to send a target reset message to the device that timed out. 65073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 65173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 65273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_dev_reset(struct scsi_cmnd *cmd) 65373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 65473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int error; 65573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 65673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke error = ahd_linux_queue_recovery_cmd(cmd, SCB_DEVICE_RESET); 65773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (error != 0) 65873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("aic79xx_dev_reset returns 0x%x\n", error); 65973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return error; 66073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 66173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 66273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 66373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Reset the SCSI bus. 66473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 66573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 66673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_bus_reset(struct scsi_cmnd *cmd) 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_long s; 67073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int found; 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 67373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#ifdef AHD_DEBUG 67473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) 67573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: Bus reset called for cmd %p\n", 67673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd); 67773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 67873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &s); 679422c0d61d591cbfb70f029e13505fb437e169d68Jeff Garzik found = ahd_reset_channel(ahd, scmd_channel(cmd) + 'A', 68073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*initiate reset*/TRUE); 68173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &s); 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 68373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 68473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: SCSI bus reset delivered. " 68573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke "%d SCBs aborted.\n", ahd_name(ahd), found); 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 68773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (SUCCESS); 68873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 69073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestruct scsi_host_template aic79xx_driver_template = { 69173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .module = THIS_MODULE, 69273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .name = "aic79xx", 69385a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig .proc_name = "aic79xx", 69473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .proc_info = ahd_linux_proc_info, 69573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .info = ahd_linux_info, 69673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .queuecommand = ahd_linux_queue, 69773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_abort_handler = ahd_linux_abort, 69873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_device_reset_handler = ahd_linux_dev_reset, 69973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_bus_reset_handler = ahd_linux_bus_reset, 70073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#if defined(__i386__) 70173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .bios_param = ahd_linux_biosparam, 70273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 70373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .can_queue = AHD_MAX_QUEUE, 70473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .this_id = -1, 70573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .cmd_per_lun = 2, 70673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .use_clustering = ENABLE_CLUSTERING, 70773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .slave_alloc = ahd_linux_slave_alloc, 70873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .slave_configure = ahd_linux_slave_configure, 70973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .slave_destroy = ahd_linux_slave_destroy, 71073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .target_alloc = ahd_linux_target_alloc, 71173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .target_destroy = ahd_linux_target_destroy, 71273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke}; 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 71473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/******************************** Bus DMA *************************************/ 71573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 71673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dma_tag_create(struct ahd_softc *ahd, bus_dma_tag_t parent, 71773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t alignment, bus_size_t boundary, 71873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t lowaddr, dma_addr_t highaddr, 71973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_filter_t *filter, void *filterarg, 72073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t maxsize, int nsegments, 72173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t maxsegsz, int flags, bus_dma_tag_t *ret_tag) 72273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 72373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_tag_t dmat; 72473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 72573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat = malloc(sizeof(*dmat), M_DEVBUF, M_NOWAIT); 72673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dmat == NULL) 72773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 73073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Linux is very simplistic about DMA memory. For now don't 73173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * maintain all specification information. Once Linux supplies 73273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * better facilities for doing these operations, or the 73373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * needs of this particular driver change, we might need to do 73473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * more here. 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 73673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->alignment = alignment; 73773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->boundary = boundary; 73873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->maxsize = maxsize; 73973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ret_tag = dmat; 74073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 74173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 74373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 74473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dma_tag_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat) 74573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 74673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke free(dmat, M_DEVBUF); 74773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 74973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 75073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamem_alloc(struct ahd_softc *ahd, bus_dma_tag_t dmat, void** vaddr, 75173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int flags, bus_dmamap_t *mapp) 75273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 75373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *vaddr = pci_alloc_consistent(ahd->dev_softc, 75473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->maxsize, mapp); 75573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (*vaddr == NULL) 75673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 75773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return(0); 75873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 76073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 76173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamem_free(struct ahd_softc *ahd, bus_dma_tag_t dmat, 76273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void* vaddr, bus_dmamap_t map) 76373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 76473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pci_free_consistent(ahd->dev_softc, dmat->maxsize, 76573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke vaddr, map); 76673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 76773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 76873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 76973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map, 77073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *buf, bus_size_t buflen, bus_dmamap_callback_t *cb, 77173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *cb_arg, int flags) 77273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 77473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Assume for now that this will only be used during 77573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * initialization and not for per-transaction buffer mapping. 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 77773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_segment_t stack_sg; 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 77973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke stack_sg.ds_addr = map; 78073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke stack_sg.ds_len = dmat->maxsize; 78173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cb(cb_arg, &stack_sg, /*nseg*/1, /*error*/0); 78273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 78373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 78573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 78673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map) 78773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 78873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 79073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 79173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_unload(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map) 79273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 79373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Nothing to do */ 79473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 79573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 79773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/********************* Platform Dependent Functions ***************************/ 79873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 79973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Compare "left hand" softc with "right hand" softc, returning: 80073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * < 0 - lahd has a lower priority than rahd 80173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * 0 - Softcs are equal 80273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * > 0 - lahd has a higher priority than rahd 80373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 80473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 80573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) 80673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 80773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int value; 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 81073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Under Linux, cards are ordered as follows: 81173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * 1) PCI devices that are marked as the boot controller. 81273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * 2) PCI devices with BIOS enabled sorted by bus/slot/func. 81373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * 3) All remaining PCI devices sorted by bus/slot/func. 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#if 0 81673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = (lahd->flags & AHD_BOOT_CHANNEL) 81773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - (rahd->flags & AHD_BOOT_CHANNEL); 81873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (value != 0) 81973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Controllers set for boot have a *higher* priority */ 82073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (value); 82173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 82373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = (lahd->flags & AHD_BIOS_ENABLED) 82473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - (rahd->flags & AHD_BIOS_ENABLED); 82573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (value != 0) 82673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Controllers with BIOS enabled have a *higher* priority */ 82773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (value); 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 82973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Still equal. Sort by bus/slot/func. */ 83073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_reverse_scan != 0) 83173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = ahd_get_pci_bus(lahd->dev_softc) 83273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_pci_bus(rahd->dev_softc); 83373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else 83473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = ahd_get_pci_bus(rahd->dev_softc) 83573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_pci_bus(lahd->dev_softc); 83673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (value != 0) 83773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (value); 83873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_reverse_scan != 0) 83973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = ahd_get_pci_slot(lahd->dev_softc) 84073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_pci_slot(rahd->dev_softc); 84173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else 84273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = ahd_get_pci_slot(rahd->dev_softc) 84373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_pci_slot(lahd->dev_softc); 84473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (value != 0) 84573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (value); 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 84773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = rahd->channel - lahd->channel; 84873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (value); 84973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 85173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 85273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_iocell_info(u_long index, int instance, int targ, int32_t value) 85373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 85573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((instance >= 0) 85673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (instance < NUM_ELEMENTS(aic79xx_iocell_info))) { 85773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint8_t *iocell_info; 85873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 85973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_info = (uint8_t*)&aic79xx_iocell_info[instance]; 86073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_info[index] = value & 0xFFFF; 86173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 86273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("iocell[%d:%ld] = %d\n", instance, index, value); 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 86473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 86673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 86773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_tag_info_global(char *p) 86873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 86973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int tags, i, j; 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 87173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = simple_strtoul(p + 1, NULL, 0) & 0xff; 87273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Setting Global Tags= %d\n", tags); 87373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 87473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < NUM_ELEMENTS(aic79xx_tag_info); i++) { 87573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (j = 0; j < AHD_NUM_TARGETS; j++) { 87673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke aic79xx_tag_info[i].tag_commands[j] = tags; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 88273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_tag_info(u_long arg, int instance, int targ, int32_t value) 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 88573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((instance >= 0) && (targ >= 0) 88673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (instance < NUM_ELEMENTS(aic79xx_tag_info)) 88773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (targ < AHD_NUM_TARGETS)) { 88873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke aic79xx_tag_info[instance].tag_commands[targ] = value & 0x1FF; 88973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 89073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("tag_info[%d:%d] = %d\n", instance, targ, value); 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8941ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwigstatic char * 8951ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwigahd_parse_brace_option(char *opt_name, char *opt_arg, char *end, int depth, 8961ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig void (*callback)(u_long, int, int, int32_t), 8971ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig u_long callback_arg) 8981ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig{ 8991ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig char *tok_end; 9001ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig char *tok_end2; 9011ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int i; 9021ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int instance; 9031ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int targ; 9041ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig int done; 9051ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig char tok_list[] = {'.', ',', '{', '}', '\0'}; 9061ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig 9071ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig /* All options use a ':' name/arg separator */ 9081ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (*opt_arg != ':') 9091ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig return (opt_arg); 9101ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 9111ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance = -1; 9121ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ = -1; 9131ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = FALSE; 9141ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig /* 9151ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig * Restore separator that may be in 9161ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig * the middle of our option argument. 9171ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig */ 9181ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end = strchr(opt_arg, '\0'); 9191ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (tok_end < end) 9201ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig *tok_end = ','; 9211ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig while (!done) { 9221ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig switch (*opt_arg) { 9231ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '{': 9241ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (instance == -1) { 9251ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance = 0; 9261ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } else { 9271ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (depth > 1) { 9281ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (targ == -1) 9291ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ = 0; 9301ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } else { 9311ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig printf("Malformed Option %s\n", 9321ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_name); 9331ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = TRUE; 9341ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 9351ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 9361ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 9371ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 9381ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '}': 9391ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (targ != -1) 9401ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ = -1; 9411ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig else if (instance != -1) 9421ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance = -1; 9431ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 9441ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 9451ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case ',': 9461ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '.': 9471ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if (instance == -1) 9481ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = TRUE; 9491ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig else if (targ >= 0) 9501ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig targ++; 9511ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig else if (instance >= 0) 9521ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig instance++; 9531ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg++; 9541ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 9551ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig case '\0': 9561ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig done = TRUE; 9571ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 9581ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig default: 9591ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end = end; 9601ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig for (i = 0; tok_list[i]; i++) { 9611ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end2 = strchr(opt_arg, tok_list[i]); 9621ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig if ((tok_end2) && (tok_end2 < tok_end)) 9631ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig tok_end = tok_end2; 9641ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 9651ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig callback(callback_arg, instance, targ, 9661ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig simple_strtol(opt_arg, NULL, 0)); 9671ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig opt_arg = tok_end; 9681ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig break; 9691ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 9701ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig } 9711ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig return (opt_arg); 9721ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig} 9731ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 97573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Handle Linux boot parameters. This routine allows for assigning a value 97673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to a parameter with a ':' between the parameter and the value. 97773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * ie. aic79xx=stpwlev:1,extended 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 98073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeaic79xx_setup(char *s) 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 98273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int i, n; 98373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *p; 98473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *end; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 98673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke static struct { 98773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke const char *name; 98873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint32_t *flag; 98973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } options[] = { 99073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "extended", &aic79xx_extended }, 99173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "no_reset", &aic79xx_no_reset }, 99273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "verbose", &aic79xx_verbose }, 99373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "allow_memio", &aic79xx_allow_memio}, 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 99573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "debug", &ahd_debug }, 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 99773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "reverse_scan", &aic79xx_reverse_scan }, 99873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "periodic_otag", &aic79xx_periodic_otag }, 99973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "pci_parity", &aic79xx_pci_parity }, 100073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "seltime", &aic79xx_seltime }, 100173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "tag_info", NULL }, 100273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "global_tag_depth", NULL}, 100373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "slewrate", NULL }, 100473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "precomp", NULL }, 100573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "amplitude", NULL }, 100673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke }; 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 100873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke end = strchr(s, '\0'); 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 101073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 101173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * XXX ia64 gcc isn't smart enough to know that NUM_ELEMENTS 101273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * will never be 0 in this case. 101373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 101473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke n = 0; 101573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 101673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke while ((p = strsep(&s, ",.")) != NULL) { 101773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (*p == '\0') 101873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke continue; 101973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < NUM_ELEMENTS(options); i++) { 102073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 102173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke n = strlen(options[i].name); 102273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (strncmp(options[i].name, p, n) == 0) 102373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 102473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 102573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (i == NUM_ELEMENTS(options)) 102673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke continue; 102773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 102873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (strncmp(p, "global_tag_depth", n) == 0) { 102973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_setup_tag_info_global(p + n); 103073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "tag_info", n) == 0) { 10311ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("tag_info", p + n, end, 103273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2, ahd_linux_setup_tag_info, 0); 103373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "slewrate", n) == 0) { 10341ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("slewrate", 103573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 103673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_SLEWRATE_INDEX); 103773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "precomp", n) == 0) { 10381ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("precomp", 103973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 104073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_PRECOMP_INDEX); 104173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "amplitude", n) == 0) { 10421ff927306e08b356d764e605eff7c50079550bd2Christoph Hellwig s = ahd_parse_brace_option("amplitude", 104373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 104473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_AMPLITUDE_INDEX); 104573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (p[n] == ':') { 104673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) = simple_strtoul(p + n + 1, NULL, 0); 104773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (!strncmp(p, "verbose", n)) { 104873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) = 1; 104973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 105073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) ^= 0xFFFFFFFF; 105173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 105273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 105373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 1; 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 105673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke__setup("aic79xx=", aic79xx_setup); 105773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 105873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeuint32_t aic79xx_verbose; 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 106173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *template) 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 106373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char buf[80]; 106473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *host; 106573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *new_name; 106673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long s; 1067e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl int retval; 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 106973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke template->name = ahd->description; 107073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host = scsi_host_alloc(template, sizeof(struct ahd_softc *)); 107173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (host == NULL) 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ENOMEM); 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 107473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)host->hostdata) = ahd; 107573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &s); 107673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->host = host; 107773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->can_queue = AHD_MAX_QUEUE; 107873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->cmd_per_lun = 2; 107973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->sg_tablesize = AHD_NSEG; 108073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->this_id = ahd->our_id; 108173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->irq = ahd->platform_data->irq; 108273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_id = (ahd->features & AHD_WIDE) ? 16 : 8; 108373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_lun = AHD_NUM_LUNS; 108473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_channel = 0; 108573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->sg_tablesize = AHD_NSEG; 108685a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig ahd_set_unit(ahd, ahd_linux_unit++); 108773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sprintf(buf, "scsi%d", host->host_no); 108873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT); 108973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (new_name != NULL) { 109073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke strcpy(new_name, buf); 109173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_name(ahd, new_name); 109273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 109373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->unique_id = ahd->unit; 109473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_initialize_scsi_bus(ahd); 109573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_intr_enable(ahd, TRUE); 109673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &s); 109773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 109873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->transportt = ahd_linux_transport_template; 109973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 1100e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl retval = scsi_add_host(host, &ahd->dev_softc->dev); 1101e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl if (retval) { 1102e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl printk(KERN_WARNING "aic79xx: scsi_add_host failed\n"); 1103e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl scsi_host_put(host); 1104e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl return retval; 1105e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl } 1106e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl 110773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_scan_host(host); 1108e7a1ca1d27e20ea2c0ba161c57e3c1d4112b60f7Jesper Juhl return 0; 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 111173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeuint64_t 111273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_get_memsize(void) 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 111473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct sysinfo si; 111573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 111673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke si_meminfo(&si); 111773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return ((uint64_t)si.totalram << PAGE_SHIFT); 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 112073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 112173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Place the SCSI bus into a known state by either resetting it, 112273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * or forcing transfer negotiations on the next command to any 112373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * target. 112473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 112573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 112673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_initialize_scsi_bus(struct ahd_softc *ahd) 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 112873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int target_id; 112973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int numtarg; 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 113173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_id = 0; 113273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke numtarg = 0; 113373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 113473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_no_reset != 0) 113573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->flags &= ~AHD_RESET_BUS_A; 113673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 113773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->flags & AHD_RESET_BUS_A) != 0) 113873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_reset_channel(ahd, 'A', /*initiate_reset*/TRUE); 113973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else 114073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke numtarg = (ahd->features & AHD_WIDE) ? 16 : 8; 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 114373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Force negotiation to async for all targets that 114473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * will not see an initial bus reset. 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 114673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (; target_id < numtarg; target_id++) { 114773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 114873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 114973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 115073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 115173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 115273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_id, &tstate); 115373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, ahd->our_id, target_id, 115473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, 'A', ROLE_INITIATOR); 115573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_update_neg_request(ahd, &devinfo, tstate, 115673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo, AHD_NEG_ALWAYS); 115773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 115873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Give the bus some time to recover */ 115973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->flags & AHD_RESET_BUS_A) != 0) { 116073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_freeze_simq(ahd); 116173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke init_timer(&ahd->platform_data->reset_timer); 116273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->reset_timer.data = (u_long)ahd; 116373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->reset_timer.expires = 116473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke jiffies + (AIC79XX_RESET_DELAY * HZ)/1000; 116573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->reset_timer.function = 116673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (ahd_linux_callback_t *)ahd_release_simq; 116773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke add_timer(&ahd->platform_data->reset_timer); 116873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 117273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 117473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data = 117573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke malloc(sizeof(struct ahd_platform_data), M_DEVBUF, M_NOWAIT); 117673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data == NULL) 117773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 117873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(ahd->platform_data, 0, sizeof(struct ahd_platform_data)); 117973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->irq = AHD_LINUX_NOIRQ; 118073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lockinit(ahd); 118173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke init_MUTEX_LOCKED(&ahd->platform_data->eh_sem); 118273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->seltime = (aic79xx_seltime & 0x3) << 4; 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 118673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 118773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_free(struct ahd_softc *ahd) 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 118973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget; 119073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int i, j; 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 119273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data != NULL) { 119373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* destroy all of the device and target objects */ 119473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < AHD_NUM_TARGETS; i++) { 119573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget = ahd->platform_data->starget[i]; 119673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (starget != NULL) { 119773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (j = 0; j < AHD_NUM_LUNS; j++) { 119873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ = 119973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_transport_target_data(starget); 120073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (targ->sdev[j] == NULL) 120173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke continue; 120273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke targ->sdev[j] = NULL; 120373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 120473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->starget[i] = NULL; 120573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 120673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 120873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->irq != AHD_LINUX_NOIRQ) 120973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke free_irq(ahd->platform_data->irq, ahd); 121073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[0] == BUS_SPACE_PIO 121173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[0].ioport != 0) 121273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_region(ahd->bshs[0].ioport, 256); 121373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[1] == BUS_SPACE_PIO 121473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[1].ioport != 0) 121573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_region(ahd->bshs[1].ioport, 256); 121673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[0] == BUS_SPACE_MEMIO 121773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[0].maddr != NULL) { 121873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iounmap(ahd->bshs[0].maddr); 121973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_mem_region(ahd->platform_data->mem_busaddr, 122073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 0x1000); 122173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 122297af50f60ff1202b0dd9ce481d4cf98c6a578becJames Bottomley if (ahd->platform_data->host) 122397af50f60ff1202b0dd9ce481d4cf98c6a578becJames Bottomley scsi_host_put(ahd->platform_data->host); 122497af50f60ff1202b0dd9ce481d4cf98c6a578becJames Bottomley 122573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke free(ahd->platform_data, M_DEVBUF); 122673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 122973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 123073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_init(struct ahd_softc *ahd) 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 123273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 123373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Lookup and commit any modified IO Cell options. 123473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 123573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->unit < NUM_ELEMENTS(aic79xx_iocell_info)) { 123673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_iocell_opts *iocell_opts; 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 123873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_opts = &aic79xx_iocell_info[ahd->unit]; 123973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->precomp != AIC79XX_DEFAULT_PRECOMP) 124073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_PRECOMP(ahd, iocell_opts->precomp); 124173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->slewrate != AIC79XX_DEFAULT_SLEWRATE) 124273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_SLEWRATE(ahd, iocell_opts->slewrate); 124373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->amplitude != AIC79XX_DEFAULT_AMPLITUDE) 124473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_AMPLITUDE(ahd, iocell_opts->amplitude); 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 124973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 125073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb) 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 125273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_platform_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb), 125373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_GET_CHANNEL(ahd, scb), 125473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_GET_LUN(scb), SCB_LIST_NULL, 125573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_UNKNOWN, CAM_REQUEUE_REQ); 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 125873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 125973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_set_tags(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, 126073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_queue_alg alg) 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 126273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget; 126373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ; 126473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 126573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_device *sdev; 126673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int was_queuing; 126773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int now_queuing; 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 126973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget = ahd->platform_data->starget[devinfo->target]; 127073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke targ = scsi_transport_target_data(starget); 127173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(targ == NULL); 127273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev = targ->sdev[devinfo->lun]; 127373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (sdev == NULL) 127473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return; 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 127673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(sdev); 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 127873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev == NULL) 127973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return; 128073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke was_queuing = dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED); 128173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (alg) { 128273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 128373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_NONE: 128473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = 0; 128573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 128673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_BASIC: 128773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = AHD_DEV_Q_BASIC; 128873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 128973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_TAGGED: 129073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = AHD_DEV_Q_TAGGED; 129173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 129273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 129373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & AHD_DEV_FREEZE_TIL_EMPTY) == 0 129473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (was_queuing != now_queuing) 129573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (dev->active != 0)) { 129673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_FREEZE_TIL_EMPTY; 129773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->qfrozen++; 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 130073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags &= ~(AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED|AHD_DEV_PERIODIC_OTAG); 130173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (now_queuing) { 130273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int usertags; 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 130473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke usertags = ahd_linux_user_tagdepth(ahd, devinfo); 130573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!was_queuing) { 130673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 130773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Start out agressively and allow our 130873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * dynamic queue depth algorithm to take 130973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * care of the rest. 131073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 131173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = usertags; 131273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = dev->maxtags - dev->active; 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 131473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->maxtags == 0) { 131573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 131673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Queueing is disabled by the user. 131773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 131873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 131973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (alg == AHD_QUEUE_TAGGED) { 132073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_Q_TAGGED; 132173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_periodic_otag != 0) 132273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_PERIODIC_OTAG; 132373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else 132473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_Q_BASIC; 132573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 132673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* We can only have one opening. */ 132773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = 0; 132873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1 - dev->active; 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 133173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { 133273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_DEV_Q_BASIC: 133373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_adjust_queue_depth(sdev, 133473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke MSG_SIMPLE_TASK, 133573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings + dev->active); 133673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 133773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_DEV_Q_TAGGED: 133873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_adjust_queue_depth(sdev, 133973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke MSG_ORDERED_TASK, 134073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings + dev->active); 134173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 134273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 134473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We allow the OS to queue 2 untagged transactions to 134573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * us at any time even though we can only execute them 134673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * serially on the controller/device. This should 134773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * remove some latency. 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 134973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_adjust_queue_depth(sdev, 135073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*NON-TAGGED*/0, 135173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*queue depth*/2); 135273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 135673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 135773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_abort_scbs(struct ahd_softc *ahd, int target, char channel, 135873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int lun, u_int tag, role_t role, uint32_t status) 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 136073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 136373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic u_int 136473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_user_tagdepth(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 136673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke static int warned_user; 136773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int tags; 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 136973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = 0; 137073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->user_discenable & devinfo->target_mask) != 0) { 137173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->unit >= NUM_ELEMENTS(aic79xx_tag_info)) { 137273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 137373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (warned_user == 0) { 137473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf(KERN_WARNING 137573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: WARNING: Insufficient tag_info instances\n" 137673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: for installed controllers. Using defaults\n" 137773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: Please update the aic79xx_tag_info array in\n" 137873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: the aic79xx_osm.c source file.\n"); 137973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke warned_user++; 138073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 138173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = AHD_MAX_QUEUE; 138273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 138373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke adapter_tag_info_t *tag_info; 138473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 138573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tag_info = &aic79xx_tag_info[ahd->unit]; 138673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = tag_info->tag_commands[devinfo->target_offset]; 138773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tags > AHD_MAX_QUEUE) 138873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = AHD_MAX_QUEUE; 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 139173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (tags); 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 139573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Determines the queue depth for a given device. 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 139873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_device_queue_depth(struct scsi_device *sdev) 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 140073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 140173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int tags; 140273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)sdev->host->hostdata); 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 140473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, 140573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->our_id, 140673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->id, sdev->lun, 140773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->channel == 0 ? 'A' : 'B', 140873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 140973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = ahd_linux_user_tagdepth(ahd, &devinfo); 141073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tags != 0 && sdev->tagged_supported != 0) { 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 141273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_tags(ahd, &devinfo, AHD_QUEUE_TAGGED); 141373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_devinfo(ahd, &devinfo); 141473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Tagged Queuing enabled. Depth %d\n", tags); 141573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 141673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_tags(ahd, &devinfo, AHD_QUEUE_NONE); 141773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 141873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 142073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 142173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, 142273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd) 142373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 142473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *scb; 142573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct hardware_scb *hscb; 142673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 142773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 142873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int col_idx; 142973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint16_t mask; 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 143273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Get an scb to use. 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 143473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 143573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->id, &tstate); 143673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) == 0 143773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 143873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke col_idx = AHD_NEVER_COL_IDX; 143973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 144073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke col_idx = AHD_BUILD_COL_IDX(cmd->device->id, 144173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun); 144273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 144373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 144473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->flags |= AHD_RESOURCE_SHORTAGE; 144573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return SCSI_MLQUEUE_HOST_BUSY; 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 144873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->io_ctx = cmd; 144973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->dev = dev; 145073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb = scb->hscb; 145173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->host_scribble = (char *)scb; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 145373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 145473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Fill out basics of the HSCB. 145573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 145673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control = 0; 145773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->scsiid = BUILD_SCSIID(ahd, cmd); 145873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->lun = cmd->device->lun; 145973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->hscb->task_management = 0; 146073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke mask = SCB_GET_TARGET_MASK(ahd, scb); 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 146273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->user_discenable & mask) != 0) 146373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= DISCENB; 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 146573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) 146673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_PACKETIZED; 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 146873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((tstate->auto_negotiate & mask) != 0) { 146973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_AUTO_NEGOTIATE; 147073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->hscb->control |= MK_MESSAGE; 147173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 147273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 147373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) { 147473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int msg_bytes; 147573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint8_t tag_msgs[2]; 147673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 147773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke msg_bytes = scsi_populate_tag_msg(cmd, tag_msgs); 147873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (msg_bytes && tag_msgs[0] != MSG_SIMPLE_TASK) { 147973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= tag_msgs[0]; 148073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tag_msgs[0] == MSG_ORDERED_TASK) 148173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 148273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else 148373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->commands_since_idle_or_otag == AHD_OTAG_THRESH 148473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (dev->flags & AHD_DEV_Q_TAGGED) != 0) { 148573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= MSG_ORDERED_TASK; 148673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 148773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 148873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= MSG_SIMPLE_TASK; 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 149073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 149273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->cdb_len = cmd->cmd_len; 149373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memcpy(hscb->shared_data.idata.cdb, cmd->cmnd, hscb->cdb_len); 149473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 149573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = 0; 149673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_residual(scb, 0); 149773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_sense_residual(scb, 0); 149873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->sg_count = 0; 149973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (cmd->use_sg != 0) { 150073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *sg; 150173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scatterlist *cur_seg; 150273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int nseg; 150373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int dir; 150473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 150573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cur_seg = (struct scatterlist *)cmd->request_buffer; 150673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dir = cmd->sc_data_direction; 150773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke nseg = pci_map_sg(ahd->dev_softc, cur_seg, 150873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->use_sg, dir); 150973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = 0; 151073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (sg = scb->sg_list; nseg > 0; nseg--, cur_seg++) { 151173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t addr; 151273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t len; 151373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 151473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke addr = sg_dma_address(cur_seg); 151573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke len = sg_dma_len(cur_seg); 151673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len += len; 151773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sg = ahd_sg_setup(ahd, scb, sg, addr, len, 151873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*last*/nseg == 1); 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 152073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (cmd->request_bufflen != 0) { 152173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *sg; 152273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t addr; 152373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int dir; 152473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 152573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sg = scb->sg_list; 152673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dir = cmd->sc_data_direction; 152773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke addr = pci_map_single(ahd->dev_softc, 152873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->request_buffer, 152973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->request_bufflen, dir); 153073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = cmd->request_bufflen; 153173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->buf_busaddr = addr; 153273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sg = ahd_sg_setup(ahd, scb, sg, addr, 153373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->request_bufflen, /*last*/TRUE); 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 153573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 153673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 153773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings--; 153873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active++; 153973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_issued++; 154073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 154173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & AHD_DEV_PERIODIC_OTAG) != 0) 154273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag++; 154373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_ACTIVE; 154473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_queue_scb(ahd, scb); 154573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 154673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 154973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 155073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * SCSI controller interrupt handler. 155173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 155273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeirqreturn_t 155373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs) 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 155573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 155673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long flags; 155773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int ours; 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 155973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = (struct ahd_softc *) dev_id; 156073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 156173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ours = ahd_intr(ahd); 156273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 156373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return IRQ_RETVAL(ours); 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 156773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_flushwork(struct ahd_softc *ahd) 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 156973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 157373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_send_async(struct ahd_softc *ahd, char channel, 157473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int target, u_int lun, ac_code code, void *arg) 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 157673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (code) { 157773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_TRANSFER_NEG: 157873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 157973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char buf[80]; 158073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget; 158173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ; 158273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct info_str info; 158373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 158473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 158573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int target_ppr_options; 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 158773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(target == CAM_TARGET_WILDCARD); 158873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 158973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.buffer = buf; 159073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.length = sizeof(buf); 159173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.offset = 0; 159273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.pos = 0; 159373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, 159473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target, &tstate); 159573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 159673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 159773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Don't bother reporting results while 159873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * negotiations are still pending. 159973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 160073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tinfo->curr.period != tinfo->goal.period 160173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.width != tinfo->goal.width 160273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.offset != tinfo->goal.offset 160373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.ppr_options != tinfo->goal.ppr_options) 160473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose == 0) 160573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 160673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 160773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 160873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Don't bother reporting results that 160973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * are identical to those last reported. 161073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 161173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget = ahd->platform_data->starget[target]; 1612fc789a93994858b5e5a46afb96d0dcf6cc1b6f08James Bottomley if (starget == NULL) 161373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 1614fc789a93994858b5e5a46afb96d0dcf6cc1b6f08James Bottomley targ = scsi_transport_target_data(starget); 161573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 161673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_ppr_options = 161773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0) 161873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke + (spi_qas(starget) ? MSG_EXT_PPR_QAS_REQ : 0) 16193f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_iu(starget) ? MSG_EXT_PPR_IU_REQ : 0) 16203f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_rd_strm(starget) ? MSG_EXT_PPR_RD_STRM : 0) 16213f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_pcomp_en(starget) ? MSG_EXT_PPR_PCOMP_EN : 0) 16223f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_rti(starget) ? MSG_EXT_PPR_RTI : 0) 162388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley + (spi_wr_flow(starget) ? MSG_EXT_PPR_WR_FLOW : 0) 162488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley + (spi_hold_mcs(starget) ? MSG_EXT_PPR_HOLD_MCS : 0); 162573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 162673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tinfo->curr.period == spi_period(starget) 162773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.width == spi_width(starget) 162873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.offset == spi_offset(starget) 162973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.ppr_options == target_ppr_options) 163073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose == 0) 163173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 163273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 163373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_period(starget) = tinfo->curr.period; 163473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_width(starget) = tinfo->curr.width; 163573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_offset(starget) = tinfo->curr.offset; 1636a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ ? 1 : 0; 1637a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ ? 1 : 0; 1638a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ ? 1 : 0; 16393f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_rd_strm(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RD_STRM ? 1 : 0; 16403f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_pcomp_en(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_PCOMP_EN ? 1 : 0; 16413f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_rti(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RTI ? 1 : 0; 16423f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_wr_flow(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_WR_FLOW ? 1 : 0; 164388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley spi_hold_mcs(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_HOLD_MCS ? 1 : 0; 164473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_display_xfer_agreement(starget); 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 164673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 164773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_SENT_BDR: 164873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 164973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke WARN_ON(lun != CAM_LUN_WILDCARD); 165073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_report_device_reset(ahd->platform_data->host, 165173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke channel - 'A', target); 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 165473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_BUS_RESET: 165573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->host != NULL) { 165673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_report_bus_reset(ahd->platform_data->host, 165773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke channel - 'A'); 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 165973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 166073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 166173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke panic("ahd_send_async: Unexpected async event"); 166273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 166573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 166673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Calls the higher level scsi done function and frees the scb. 166773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 166873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 166973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_done(struct ahd_softc *ahd, struct scb *scb) 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 167173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 167273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 167473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_ACTIVE) == 0) { 167573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("SCB %d done'd twice\n", SCB_GET_TAG(scb)); 167673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_dump_card_state(ahd); 167773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke panic("Stopping for safety"); 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 167973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_REMOVE(scb, pending_links); 168073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd = scb->io_ctx; 168173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scb->platform_data->dev; 168273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active--; 168373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings++; 168473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) { 168573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->result &= ~(CAM_DEV_QFRZN << 16); 168673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->qfrozen--; 168773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 168873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_unmap_scb(ahd, scb); 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 169173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Guard against stale sense data. 169273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * The Linux mid-layer assumes that sense 169373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * was retrieved anytime the first byte of 169473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the sense buffer looks "sane". 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 169673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->sense_buffer[0] = 0; 169773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_get_transaction_status(scb) == CAM_REQ_INPROG) { 169873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint32_t amount_xferred; 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 170073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke amount_xferred = 170173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_transfer_length(scb) - ahd_get_residual(scb); 170273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_TRANSMISSION_ERROR) != 0) { 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 170473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_MISC) != 0) { 170573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 170673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Set CAM_UNCOR_PARITY\n"); 170773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 170973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_UNCOR_PARITY); 171073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#ifdef AHD_REPORT_UNDERFLOWS 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 171273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * This code is disabled by default as some 171373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * clients of the SCSI system do not properly 171473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * initialize the underflow parameter. This 171573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * results in spurious termination of commands 171673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * that complete as expected (e.g. underflow is 171773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * allowed as command can return variable amounts 171873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * of data. 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 172073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (amount_xferred < scb->io_ctx->underflow) { 172173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int i; 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 172373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 172473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("CDB:"); 172573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < scb->io_ctx->cmd_len; i++) 172673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf(" 0x%x", scb->io_ctx->cmnd[i]); 172773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("\n"); 172873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 172973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Saw underflow (%ld of %ld bytes). " 173073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke "Treated as error\n", 173173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_residual(scb), 173273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_transfer_length(scb)); 173373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_DATA_RUN_ERR); 173473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 173573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 173673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_REQ_CMP); 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 173873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (ahd_get_transaction_status(scb) == CAM_SCSI_STATUS_ERROR) { 173973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_handle_scsi_status(ahd, cmd->device, scb); 174073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 174273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->openings == 1 174373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_get_transaction_status(scb) == CAM_REQ_CMP 174473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_get_scsi_status(scb) != SCSI_STATUS_QUEUE_FULL) 174573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count++; 174673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 174773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Some devices deal with temporary internal resource 174873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * shortages by returning queue full. When the queue 174973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * full occurrs, we throttle back. Slowly try to get 175073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * back to our previous queue depth. 175173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 175273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->openings + dev->active) < dev->maxtags 175373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && dev->tag_success_count > AHD_TAG_SUCCESS_INTERVAL) { 175473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count = 0; 175573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings++; 175673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 175873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active == 0) 175973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 176173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 176273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Recovery SCB completes\n"); 176373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_get_transaction_status(scb) == CAM_BDR_SENT 176473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || ahd_get_transaction_status(scb) == CAM_REQ_ABORTED) 176573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT); 176673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->platform_data->flags & AHD_SCB_UP_EH_SEM) != 0) { 176773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->flags &= ~AHD_SCB_UP_EH_SEM; 176873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke up(&ahd->platform_data->eh_sem); 176973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 177173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 177273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_free_scb(ahd, scb); 177373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_queue_cmd_complete(ahd, cmd); 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 177773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_handle_scsi_status(struct ahd_softc *ahd, 177873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_device *sdev, struct scb *scb) 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 178073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 178173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev = scsi_transport_device_data(sdev); 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 178373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, 178473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->our_id, 178573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->id, sdev->lun, 178673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->channel == 0 ? 'A' : 'B', 178773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 178873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 178973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 179073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We don't currently trust the mid-layer to 179173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * properly deal with queue full or busy. So, 179273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * when one occurs, we tell the mid-layer to 179373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * unconditionally requeue the command to us 179473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so that we can retry it ourselves. We also 179573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * implement our own throttling mechanism so 179673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * we don't clobber the device with too many 179773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * commands. 179873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 179973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (ahd_get_scsi_status(scb)) { 180073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 180173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 180273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_CHECK_COND: 180373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_CMD_TERMINATED: 180473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 180573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 180873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Copy sense information to the OS's cmd 180973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * structure if it is available. 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 181173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd = scb->io_ctx; 181273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & (SCB_SENSE|SCB_PKT_SENSE)) != 0) { 181373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_status_iu_header *siu; 181473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int sense_size; 181573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int sense_offset; 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 181773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (scb->flags & SCB_SENSE) { 181873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_size = MIN(sizeof(struct scsi_sense_data) 181973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_sense_residual(scb), 182073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(cmd->sense_buffer)); 182173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_offset = 0; 182273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 182373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 182473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Copy only the sense data into the provided 182573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * buffer. 182673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 182773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke siu = (struct scsi_status_iu_header *) 182873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->sense_data; 182973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_size = MIN(scsi_4btoul(siu->sense_length), 183073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(cmd->sense_buffer)); 183173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_offset = SIU_SENSE_OFFSET(siu); 183273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 183473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer)); 183573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memcpy(cmd->sense_buffer, 183673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_sense_buf(ahd, scb) 183773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke + sense_offset, sense_size); 183873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->result |= (DRIVER_SENSE << 24); 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 184173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_debug & AHD_SHOW_SENSE) { 184273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int i; 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 184473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Copied %d bytes of sense data at %d:", 184573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_size, sense_offset); 184673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < sense_size; i++) { 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i & 0xF) == 0) 184873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("\n"); 184973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("0x%x ", cmd->sense_buffer[i]); 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printf("\n"); 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 185673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 185773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_QUEUE_FULL: 185873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 185973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * By the time the core driver has returned this 186073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * command, all other commands that were queued 186173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to us but not the device have been returned. 186273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * This ensures that dev->active is equal to 186373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the number of commands actually queued to 186473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the device. 186573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 186673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count = 0; 186773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active != 0) { 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 186973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Drop our opening count to the number 187073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * of commands currently outstanding. 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 187273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 0; 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 187473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_QFULL) != 0) { 187573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 187673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Dropping tag count to %d\n", 187773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active); 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 188073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active == dev->tags_on_last_queuefull) { 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 188273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->last_queuefull_same_count++; 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 188473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * If we repeatedly see a queue full 188573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * at the same queue depth, this 188673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * device has a fixed number of tag 188773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * slots. Lock in this tag depth 188873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we stop seeing queue fulls from 188973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * this device. 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 189173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->last_queuefull_same_count 189273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke == AHD_LOCK_TAGS_COUNT) { 189373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = dev->active; 189473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 189573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Locking max tag count at %d\n", 189673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active); 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 189873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 189973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tags_on_last_queuefull = dev->active; 190073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->last_queuefull_same_count = 0; 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 190273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_REQUEUE_REQ); 190373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scsi_status(scb, SCSI_STATUS_OK); 190473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_platform_set_tags(ahd, &devinfo, 190573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (dev->flags & AHD_DEV_Q_BASIC) 190673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED); 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 191073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Drop down to a single opening, and treat this 191173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * as if the target returned BUSY SCSI status. 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 191373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 191473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_platform_set_tags(ahd, &devinfo, 191573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (dev->flags & AHD_DEV_Q_BASIC) 191673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED); 191773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scsi_status(scb, SCSI_STATUS_BUSY); 191873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 192173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 192273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd) 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 192573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Map CAM error codes into Linux Error codes. We 192673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * avoid the conversion so that the DV code has the 192773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * full error information available when making 192873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * state change decisions. 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 193073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 193173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint32_t status; 193273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int new_status; 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 193473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke status = ahd_cmd_get_transaction_status(cmd); 193573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (status) { 193673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_INPROG: 193773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_CMP: 193873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_SCSI_STATUS_ERROR: 193973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_OK; 194073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 194173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_ABORTED: 194273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_ABORT; 194373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 194473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_BUSY: 194573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_BUS_BUSY; 194673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 194773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_INVALID: 194873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_PATH_INVALID: 194973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_BAD_TARGET; 195073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 195173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_SEL_TIMEOUT: 195273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_NO_CONNECT; 195373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 195473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_SCSI_BUS_RESET: 195573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_BDR_SENT: 195673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_RESET; 195773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 195873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_UNCOR_PARITY: 195973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_PARITY; 196073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 196173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_CMD_TIMEOUT: 196273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_TIME_OUT; 196373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 196473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_UA_ABORT: 196573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_CMP_ERR: 196673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_AUTOSENSE_FAIL: 196773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_NO_HBA: 196873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_DATA_RUN_ERR: 196973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_UNEXP_BUSFREE: 197073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_SEQUENCE_FAIL: 197173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_CCB_LEN_ERR: 197273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_PROVIDE_FAIL: 197373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_TERMIO: 197473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_UNREC_HBA_ERROR: 197573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_TOO_BIG: 197673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_ERROR; 197773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 197873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQUEUE_REQ: 197973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_REQUEUE; 198073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 198173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 198273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* We should never get here */ 198373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_ERROR; 198473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 198573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 198673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 198773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_cmd_set_transaction_status(cmd, new_status); 198873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 198973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 199073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->scsi_done(cmd); 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 199473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_sem_timeout(u_long arg) 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 199673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 199773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long s; 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 199973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = (struct ahd_softc *)arg; 200073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 200173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &s); 200273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->platform_data->flags & AHD_SCB_UP_EH_SEM) != 0) { 200373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->flags &= ~AHD_SCB_UP_EH_SEM; 200473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke up(&ahd->platform_data->eh_sem); 200573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 200673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &s); 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 201073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_freeze_simq(struct ahd_softc *ahd) 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 201273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->qfrozen++; 201373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->qfrozen == 1) { 201473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_block_requests(ahd->platform_data->host); 201573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_platform_abort_scbs(ahd, CAM_TARGET_WILDCARD, ALL_CHANNELS, 201673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, SCB_LIST_NULL, 201773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR, CAM_REQUEUE_REQ); 20181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 202273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_release_simq(struct ahd_softc *ahd) 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 202473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long s; 202573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int unblock_reqs; 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 202773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unblock_reqs = 0; 202873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &s); 202973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->qfrozen > 0) 203073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->qfrozen--; 203173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->qfrozen == 0) { 203273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unblock_reqs = 1; 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 203473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &s); 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 203673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * There is still a race here. The mid-layer 203773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * should keep its own freeze count and use 203873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * a bottom half handler to run the queues 203973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we can unblock with our own lock held. 20401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 204173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (unblock_reqs) 204273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_unblock_requests(ahd->platform_data->host); 204373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 204573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 204673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) 204773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 204873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 204973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 205073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *pending_scb; 205173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int saved_scbptr; 205273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int active_scbptr; 205373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int last_phase; 205473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int saved_scsiid; 205573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int cdb_byte; 205673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int retval; 205773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int was_paused; 205873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int paused; 205973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int wait; 206073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int disconnected; 206173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_mode_state saved_modes; 20624065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig unsigned long flags; 206373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 206473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb = NULL; 206573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke paused = FALSE; 206673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = FALSE; 206773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 206873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2069017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, 2070017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik "Attempting to queue a%s message:", 207173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke flag == SCB_ABORT ? "n ABORT" : " TARGET RESET"); 207273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 207373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("CDB:"); 207473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++) 207573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf(" 0x%x", cmd->cmnd[cdb_byte]); 207673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("\n"); 207773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 20784065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig ahd_lock(ahd, &flags); 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 208173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * First determine if we currently own this command. 208273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Start by searching the device queue. If not found 208373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * there, check the pending_scb list. If not found 208473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * at all, and the system wanted us to just abort the 208573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * command, return success. 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 208773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(cmd->device); 208873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 208973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev == NULL) { 209073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 209173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * No target device for this command exists, 209273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we must not still own the command. 209373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 2094017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Is not an active device\n"); 209573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = SUCCESS; 209673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 209773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 210073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * See if we can find a matching cmd in the pending list. 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 210273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) { 210373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (pending_scb->io_ctx == cmd) 210473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 21051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 210773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (pending_scb == NULL && flag == SCB_DEVICE_RESET) { 21081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 210973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Any SCB for this device will do for a target reset */ 211073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) { 2111422c0d61d591cbfb70f029e13505fb437e169d68Jeff Garzik if (ahd_match_scb(ahd, pending_scb, 2112422c0d61d591cbfb70f029e13505fb437e169d68Jeff Garzik scmd_id(cmd), 2113422c0d61d591cbfb70f029e13505fb437e169d68Jeff Garzik scmd_channel(cmd) + 'A', 211473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, 2115dce200670d63615120de17d4aed0a4fd777cc825Vasily Averin SCB_LIST_NULL, ROLE_INITIATOR)) 211673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 21171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 212073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (pending_scb == NULL) { 2121017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Command not found\n"); 212273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 21231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 212573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_RECOVERY_SCB) != 0) { 212673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 212773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We can't queue two recovery actions using the same SCB 212873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 212973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 213073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto done; 213173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 213473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Ensure that the card doesn't do anything 213573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * behind our back. Also make sure that we 213673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * didn't "just" miss an interrupt that would 213773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * affect this cmd. 21381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 213973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke was_paused = ahd_is_paused(ahd); 214073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_pause_and_flushwork(ahd); 214173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke paused = TRUE; 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 214373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_ACTIVE) == 0) { 2144017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Command already completed\n"); 214573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 214673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 21471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 214873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: At time of recovery, card was %spaused\n", 214973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), was_paused ? "" : "not "); 215073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_dump_card_state(ahd); 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 215273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = TRUE; 215373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (flag == SCB_ABORT) { 215473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_search_qinfifo(ahd, cmd->device->id, 215573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->channel + 'A', 215673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun, 215773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->tag, 215873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR, CAM_REQ_ABORTED, 215973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SEARCH_COMPLETE) > 0) { 216073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s:%d:%d:%d: Cmd aborted from QINFIFO\n", 216173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd->device->channel, 216273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->id, cmd->device->lun); 216373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = SUCCESS; 216473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto done; 216573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 216673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (ahd_search_qinfifo(ahd, cmd->device->id, 216773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->channel + 'A', 216873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun, pending_scb->hscb->tag, 216973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR, /*status*/0, 217073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SEARCH_COUNT) > 0) { 217173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = FALSE; 217273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 217473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_modes = ahd_save_modes(ahd); 217573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); 217673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke last_phase = ahd_inb(ahd, LASTPHASE); 217773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_scbptr = ahd_get_scbptr(ahd); 217873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke active_scbptr = saved_scbptr; 217973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (disconnected && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) { 218073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *bus_scb; 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 218273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_scb = ahd_lookup_scb(ahd, active_scbptr); 218373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bus_scb == pending_scb) 218473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = FALSE; 218573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else if (flag != SCB_ABORT 218673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_inb(ahd, SAVED_SCSIID) == pending_scb->hscb->scsiid 218773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_inb(ahd, SAVED_LUN) == SCB_GET_LUN(pending_scb)) 218873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = FALSE; 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 219073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 219173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 219273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * At this point, pending_scb is the scb associated with the 219373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * passed in command. That command is currently active on the 219473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * bus or is in the disconnected state. 219573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 219673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_scsiid = ahd_inb(ahd, SAVED_SCSIID); 219773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (last_phase != P_BUSFREE 219873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (SCB_GET_TAG(pending_scb) == active_scbptr 219973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || (flag == SCB_DEVICE_RESET 2200422c0d61d591cbfb70f029e13505fb437e169d68Jeff Garzik && SCSIID_TARGET(ahd, saved_scsiid) == scmd_id(cmd)))) { 220173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 220373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We're active on the bus, so assert ATN 220473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * and hope that the target responds. 22051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 220673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb = ahd_lookup_scb(ahd, active_scbptr); 220773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->flags |= SCB_RECOVERY_SCB|flag; 220873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, MSG_OUT, HOST_MSG); 220973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCSISIGO, last_phase|ATNO); 2210017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Device is active, asserting ATN\n"); 221173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = TRUE; 221273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (disconnected) { 221373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 221473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 221573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Actually re-queue this SCB in an attempt 221673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to select the device before it reconnects. 221773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 221873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT; 221973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scbptr(ahd, SCB_GET_TAG(pending_scb)); 222073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->cdb_len = 0; 222173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_attribute = 0; 222273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_management = SIU_TASKMGMT_ABORT_TASK; 222373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 222473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_PACKETIZED) != 0) { 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 222673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Mark the SCB has having an outstanding 222773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * task management function. Should the command 222873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * complete normally before the task management 222973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * function can be sent, the host will be notified 223073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to abort our requeued SCB. 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 223273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCB_TASK_MANAGEMENT, 223373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_management); 223473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 223573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 223673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * If non-packetized, set the MK_MESSAGE control 223773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * bit indicating that we desire to send a message. 223873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We also set the disconnected flag since there is 223973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * no guarantee that our SCB control byte matches 224073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the version on the card. We don't want the 224173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * sequencer to abort the command thinking an 224273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * unsolicited reselection occurred. 224373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 224473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->control |= MK_MESSAGE|DISCONNECTED; 224573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 224673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 224773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * The sequencer will never re-reference the 224873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * in-core SCB. To make sure we are notified 224973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * during reslection, set the MK_MESSAGE flag in 225073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the card's copy of the SCB. 225173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 225273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCB_CONTROL, 225373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_inb(ahd, SCB_CONTROL)|MK_MESSAGE); 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 225573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 22561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 225773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Clear out any entries in the QINFIFO first 225873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we are the next SCB for this target 225973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to run. 22601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 226173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_search_qinfifo(ahd, cmd->device->id, 226273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->channel + 'A', cmd->device->lun, 226373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_LIST_NULL, ROLE_INITIATOR, 226473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_REQUEUE_REQ, SEARCH_COMPLETE); 226573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_qinfifo_requeue_tail(ahd, pending_scb); 226673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scbptr(ahd, saved_scbptr); 226773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, pending_scb); 226873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Device is disconnected, re-queuing SCB\n"); 226973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = TRUE; 227073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 2271017560fca496f72ed9dd734ffde63ce39dfe0411Jeff Garzik scmd_printk(KERN_INFO, cmd, "Unable to deliver message\n"); 227273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 227373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto done; 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 227673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeno_cmd: 22771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 227873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Our assumption is that if we don't have the command, no 227973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * recovery action was required, so we return success. Again, 228073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the semantics of the mid-layer recovery engine are not 228173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * well defined, so this may change in time. 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 228373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = SUCCESS; 228473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckedone: 228573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (paused) 228673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unpause(ahd); 228773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (wait) { 228873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct timer_list timer; 228973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int ret; 22901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 229173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->flags |= AHD_SCB_UP_EH_SEM; 22924065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig ahd_unlock(ahd, &flags); 22934065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig 229473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke init_timer(&timer); 229573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke timer.data = (u_long)ahd; 229673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke timer.expires = jiffies + (5 * HZ); 229773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke timer.function = ahd_linux_sem_timeout; 229873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke add_timer(&timer); 229973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Recovery code sleeping\n"); 230073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke down(&ahd->platform_data->eh_sem); 230173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Recovery code awake\n"); 230273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ret = del_timer_sync(&timer); 230373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ret == 0) { 230473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Timer Expired\n"); 230573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 23061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23084065a413d7684919b3f8804df8ab0cd9a09150f4Christoph Hellwig ahd_unlock(ahd, &flags); 230973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (retval); 23101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 231273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_width(struct scsi_target *starget, int width) 23131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 231473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 231573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 231673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 231773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 23181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 231973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 232073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 232173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 232273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE); 232373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 232473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 232573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 232673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_period(struct scsi_target *starget, int period) 232773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 232873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 232973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 233073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 233173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 233273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 233373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 233473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 233573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 233673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options; 2337a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 233873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 233973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long offset = tinfo->goal.offset; 23401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2342a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2343a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: set period to %d\n", ahd_name(ahd), period); 2344a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 234573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (offset == 0) 234673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke offset = MAX_OFFSET; 23471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 234873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period < 8) 234973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke period = 8; 235073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period < 10) { 235173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; 235273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period == 8) 235373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_IU_REQ; 23541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2356a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2357a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 235873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 235973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 23601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 236173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* all PPR requests apart from QAS require wide transfers */ 236273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ppr_options & ~MSG_EXT_PPR_QAS_REQ) { 236373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (spi_width(starget) == 0) 236473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options &= MSG_EXT_PPR_QAS_REQ; 23651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 236673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2367a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2368a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2369a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 237073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 237173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, offset, 237273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 237373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 23741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 237673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_offset(struct scsi_target *starget, int offset) 23771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 237873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 237973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 238073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 238173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 238273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 238373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 238473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 238573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 238673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = 0; 238773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = 0; 2388a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 238973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 239073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2391a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2392a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2393a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: set offset to %d\n", ahd_name(ahd), offset); 2394a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2395a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 239673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 239773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 239873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (offset != 0) { 239973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke period = tinfo->goal.period; 240073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options = tinfo->goal.ppr_options; 2401a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2402a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 24031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2404a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 240573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 240673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options, 240773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, FALSE); 240873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 24091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 241173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_dt(struct scsi_target *starget, int dt) 24121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 241373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 241473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 241573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 241673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 241773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 241873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 241973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 242073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 242173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 242273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_DT_REQ; 242373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 242452b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke unsigned int width = tinfo->goal.width; 242573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 242673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2427a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2428a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2429a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s DT\n", ahd_name(ahd), 2430a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? "enabling" : "disabling"); 2431a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 243273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dt) { 243373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; 243452b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke if (!width) 243552b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke ahd_linux_set_width(starget, 1); 2436a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } else { 2437a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (period <= 9) 2438a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke period = 10; /* If resetting DT, period must be >= 25ns */ 2439a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke /* IU is invalid without DT set */ 2440a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2441a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 244273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 244373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 244473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 244573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2446a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 244773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 244873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 244973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 245073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 24511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 245373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_qas(struct scsi_target *starget, int qas) 24541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 245573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 245673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 245773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 245873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 245973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 246073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 246173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 246273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 246373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 246473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_QAS_REQ; 246573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 2466a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 246773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 246873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2469a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2470a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2471a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s QAS\n", ahd_name(ahd), 2472a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke qas ? "enabling" : "disabling"); 2473a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2474a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2475a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (qas) { 2476a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_QAS_REQ; 2477a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2478a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2479a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 248073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 248173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 248273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 248373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 248473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2485a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 248673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 248773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 248873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 248973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 24901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 249273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_iu(struct scsi_target *starget, int iu) 24931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 249473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 249573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 249673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 249773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 249873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 249973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 250073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 250173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 250273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 250373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_IU_REQ; 250473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 2505a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 250673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 250773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2508a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2509a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2510a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s IU\n", ahd_name(ahd), 2511a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke iu ? "enabling" : "disabling"); 2512a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2513a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2514a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (iu) { 251573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_IU_REQ; 2516a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */ 2517a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2518a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2519a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 252073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 252173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 252273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 252373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 252473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2525a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 252673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 252773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 252873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 252973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 253073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 25311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 253273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm) 253373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 253473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 253573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 253673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 253773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 253873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 253973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 254073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 254173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 254273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 254373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_RD_STRM; 254473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 254573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 254673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 254773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2548a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2549a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2550a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s Read Streaming\n", ahd_name(ahd), 2551a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke rdstrm ? "enabling" : "disabling"); 2552a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2553a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 255473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (rdstrm) 255573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_RD_STRM; 255673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 255773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 255873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 255973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 256073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2561a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2562a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2563a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2564a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2565a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2566a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2567a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2568a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_wr_flow(struct scsi_target *starget, int wrflow) 2569a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2570a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2571a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2572a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2573a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2574a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2575a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2576a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2577a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2578a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2579a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_WR_FLOW; 2580a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2581a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2582a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2583a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2584a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2585a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2586a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s Write Flow Control\n", ahd_name(ahd), 2587a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke wrflow ? "enabling" : "disabling"); 2588a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2589a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2590a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (wrflow) 2591a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_WR_FLOW; 2592a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2593a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2594a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2595a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2596a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2597a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2598a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2599a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2600a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2601a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2602a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2603a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2604a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_rti(struct scsi_target *starget, int rti) 2605a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2606a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2607a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2608a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2609a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2610a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2611a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2612a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2613a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2614a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2615a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_RTI; 2616a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2617a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2618a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2619a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2620a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd->features & AHD_RTI) == 0) { 2621a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2622a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2623a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: RTI not available\n", ahd_name(ahd)); 2624a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2625a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke return; 2626a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2627a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2628a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2629a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2630a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s RTI\n", ahd_name(ahd), 2631a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke rti ? "enabling" : "disabling"); 2632a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2633a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2634a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (rti) 2635a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_RTI; 2636a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2637a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2638a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2639a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2640a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2641a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2642a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2643a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2644a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2645a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2646a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2647a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2648a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp) 2649a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2650a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2651a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2652a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2653a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2654a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2655a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2656a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2657a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2658a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2659a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_PCOMP_EN; 2660a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2661a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2662a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2663a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2664a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2665a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2666a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s Precompensation\n", ahd_name(ahd), 2667a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke pcomp ? "Enable" : "Disable"); 2668a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2669a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2670a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (pcomp) 2671a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_PCOMP_EN; 2672a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2673a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2674a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2675a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2676a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2677a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 267873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 267973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 268073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 268173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 26821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 268488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomleystatic void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold) 268588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley{ 268688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 268788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 268888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_tmode_tstate *tstate; 268988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_initiator_tinfo *tinfo 269088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley = ahd_fetch_transinfo(ahd, 269188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley starget->channel + 'A', 269288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley shost->this_id, starget->id, &tstate); 269388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_devinfo devinfo; 269488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int ppr_options = tinfo->goal.ppr_options 269588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley & ~MSG_EXT_PPR_HOLD_MCS; 269688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int period = tinfo->goal.period; 269788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 269888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned long flags; 269988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 270088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley if (hold) 270188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ppr_options |= MSG_EXT_PPR_HOLD_MCS; 270288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 270388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 270488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley starget->channel + 'A', ROLE_INITIATOR); 270588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_find_syncrate(ahd, &period, &ppr_options, 270688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 270788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 270888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_lock(ahd, &flags); 270988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 271088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ppr_options, AHD_TRANS_GOAL, FALSE); 271188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_unlock(ahd, &flags); 271288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley} 271388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 271488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 271588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 271673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic struct spi_function_template ahd_linux_transport_functions = { 271773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_offset = ahd_linux_set_offset, 271873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_offset = 1, 271973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_period = ahd_linux_set_period, 272073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_period = 1, 272173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_width = ahd_linux_set_width, 272273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_width = 1, 272373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_dt = ahd_linux_set_dt, 272473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_dt = 1, 272573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_iu = ahd_linux_set_iu, 272673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_iu = 1, 272773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_qas = ahd_linux_set_qas, 272873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_qas = 1, 272973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_rd_strm = ahd_linux_set_rd_strm, 273073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_rd_strm = 1, 2731a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_wr_flow = ahd_linux_set_wr_flow, 2732a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_wr_flow = 1, 2733a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_rti = ahd_linux_set_rti, 2734a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_rti = 1, 2735a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_pcomp_en = ahd_linux_set_pcomp_en, 2736a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_pcomp_en = 1, 273788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley .set_hold_mcs = ahd_linux_set_hold_mcs, 273888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley .show_hold_mcs = 1, 273973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke}; 274073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 27411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init 27421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_init(void) 27431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 274485a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig int error = 0; 274585a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 274685a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig /* 274785a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig * If we've been passed any parameters, process them now. 274885a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig */ 274985a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig if (aic79xx) 275085a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig aic79xx_setup(aic79xx); 275185a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 275285a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig ahd_linux_transport_template = 275385a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig spi_attach_transport(&ahd_linux_transport_functions); 275473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!ahd_linux_transport_template) 275573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return -ENODEV; 275685a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig 275773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_transport_reserve_target(ahd_linux_transport_template, 275873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(struct ahd_linux_target)); 275973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_transport_reserve_device(ahd_linux_transport_template, 276073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(struct ahd_linux_device)); 2761a80b3424d9fde3c4b6d62adaf6dda78128dc5c27James Bottomley 276285a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig error = ahd_linux_pci_init(); 276385a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig if (error) 276485a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig spi_release_transport(ahd_linux_transport_template); 276585a46523ff68aa0e4d2477c51075ffd9fc7e7a14Christoph Hellwig return error; 27661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit 27691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_exit(void) 27701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 27711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_linux_pci_exit(); 277273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_release_transport(ahd_linux_transport_template); 27731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ahd_linux_init); 27761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(ahd_linux_exit); 2777