aic79xx_osm.c revision a80b3424d9fde3c4b6d62adaf6dda78128dc5c27
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/* 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Include aiclib.c as part of our 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * "module dependencies are hard" work around. 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "aiclib.c" 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> /* __setup */ 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> /* For fetching system memory size */ 5973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#include <linux/blkdev.h> /* For block_size() */ 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> /* For ssleep/msleep */ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Lock protecting manipulation of the ahd softc list. 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsspinlock_t ahd_list_spinlock; 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bucket size for counting good commands in between bad ones. 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AHD_LINUX_ERR_THRESH 1000 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set this to the delay in seconds after SCSI bus reset. 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note, we honor this only for the initial bus reset. 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The scsi error recovery code performs its own bus settle 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * delay handling for error recovery actions. 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC79XX_RESET_DELAY_MS 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_RESET_DELAY CONFIG_AIC79XX_RESET_DELAY_MS 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_RESET_DELAY 5000 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * To change the default number of tagged transactions allowed per-device, 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add a line to the lilo.conf file like: 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * append="aic79xx=verbose,tag_info:{{32,32,32,32},{32,32,32,32}}" 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * which will result in the first four devices on the first two 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * controllers being set to a tagged queue depth of 32. 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The tag_commands is an array of 16 to allow for wide and twin adapters. 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Twin adapters will use indexes 0-7 for channel 0, and indexes 8-15 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for channel 1. 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct { 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint16_t tag_commands[16]; /* Allow for wide/twin adapters. */ 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} adapter_tag_info_t; 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Modify this as you see fit for your system. 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 tagged queuing disabled 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 <= n <= 253 n == max tags ever dispatched. 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The driver will throttle the number of commands dispatched to a 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device if it returns queue full. For devices with a fixed maximum 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * queue depth, the driver will eventually determine this depth and 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * lock it in (a console message is printed to indicate that a lock 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has occurred). On some devices, queue full is returned for a temporary 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * resource shortage. These devices will return queue full at varying 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * depths. The driver will throttle back when the queue fulls occur and 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attempt to slowly increase the depth over time as the device recovers 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from the resource shortage. 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * In this example, the first line will disable tagged queueing for all 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the devices on the first probed aic79xx adapter. 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The second line enables tagged queueing with 4 commands/LUN for IDs 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (0, 2-11, 13-15), disables tagged queueing for ID 12, and tells the 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * driver to attempt to use up to 64 tags for ID 1. 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The third line is the same as the first line. 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The fourth line disables tagged queueing for devices 0 and 3. It 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * enables tagged queueing for the other IDs, with 16 commands/LUN 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for IDs 1 and 4, 127 commands/LUN for ID 8, and 4 commands/LUN for 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * IDs 2, 5-7, and 9-15. 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NOTE: The below structure is for reference only, the actual structure 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to modify in order to change things is just below this comment block. 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsadapter_tag_info_t aic79xx_tag_info[] = 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{4, 64, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 4, 4, 4}}, 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {{0, 16, 4, 0, 16, 4, 4, 4, 127, 4, 4, 4, 4, 4, 4, 4}} 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds*/ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_AIC79XX_CMDS_PER_DEVICE 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CMDS_PER_DEVICE CONFIG_AIC79XX_CMDS_PER_DEVICE 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CMDS_PER_DEVICE AHD_MAX_QUEUE 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_CONFIGED_TAG_COMMANDS { \ 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \ 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE \ 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * By default, use the number of commands specified by 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the users kernel configuration. 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic adapter_tag_info_t aic79xx_tag_info[] = 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS}, 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {AIC79XX_CONFIGED_TAG_COMMANDS} 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The I/O cell on the chip is very configurable in respect to its analog 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * characteristics. Set the defaults here; they can be overriden with 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the proper insmod parameters. 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ahd_linux_iocell_opts 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t precomp; 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t slewrate; 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t amplitude; 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_PRECOMP 0xFF 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_SLEWRATE 0xFF 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_AMPLITUDE 0xFF 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_DEFAULT_IOOPTS \ 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_PRECOMP, \ 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_SLEWRATE, \ 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_AMPLITUDE \ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_PRECOMP_INDEX 0 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_SLEWRATE_INDEX 1 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AIC79XX_AMPLITUDE_INDEX 2 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct ahd_linux_iocell_opts aic79xx_iocell_info[] = 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS, 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds AIC79XX_DEFAULT_IOOPTS 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There should be a specific return value for this in scsi.h, but 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it seems that most drivers ignore it. 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DID_UNDERFLOW DID_ERROR 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_print_path(struct ahd_softc *ahd, struct scb *scb) 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("(scsi%d:%c:%d:%d): ", 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd->platform_data->host->host_no, 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_CHANNEL(ahd, scb) : 'X', 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_TARGET(ahd, scb) : -1, 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb != NULL ? SCB_GET_LUN(scb) : -1); 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * XXX - these options apply unilaterally to _all_ adapters 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cards in the system. This should be fixed. Exceptions to this 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * rule are noted in the comments. 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Skip the scsi bus reset. Non 0 make us skip the reset at startup. This 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has no effect on any later resets that might occur due to things like 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * SCSI bus timeouts. 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_no_reset; 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Certain PCI motherboards will scan PCI devices from highest to lowest, 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * others scan from lowest to highest, and they tend to do all kinds of 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * strange things when they come into contact with PCI bridge chips. The 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * net result of all this is that the PCI card that is actually used to boot 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the machine is very hard to detect. Most motherboards go from lowest 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCI slot number to highest, and the first SCSI controller found is the 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * one you boot from. The only exceptions to this are when a controller 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has its BIOS disabled. So, we by default sort all of our SCSI controllers 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from lowest PCI slot number to highest PCI slot number. We also force 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * all controllers with their BIOS disabled to the end of the list. This 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * works on *almost* all computers. Where it doesn't work, we have this 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * option. Setting this option to non-0 will reverse the order of the sort 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to highest first, then lowest, but will still leave cards with their BIOS 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * disabled at the very end. That should fix everyone up unless there are 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * really strange cirumstances. 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_reverse_scan; 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should we force EXTENDED translation on a controller. 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 == Use whatever is in the SEEPROM or default to off 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 == Use whatever is in the SEEPROM or default to on 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_extended; 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCI bus parity checking of the Adaptec controllers. This is somewhat 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * dubious at best. To my knowledge, this option has never actually 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * solved a PCI parity problem, but on certain machines with broken PCI 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * chipset configurations, it can generate tons of false error messages. 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It's included in the driver for completeness. 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 = Shut off PCI parity check 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * non-0 = Enable PCI parity check 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NOTE: you can't actually pass -1 on the lilo prompt. So, to set this 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * variable to -1 you would actually want to simply pass the variable 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * name without a number. That will invert the 0 which will result in 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -1. 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_pci_parity = ~0; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There are lots of broken chipsets in the world. Some of them will 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * violate the PCI spec when we issue byte sized memory writes to our 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * controller. I/O mapped register access, if allowed by the given 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * platform, will work in almost all cases. 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsuint32_t aic79xx_allow_memio = ~0; 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * aic79xx_detect() has been run, so register all device arrivals 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * immediately with the system rather than deferring to the sorted 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attachment performed by aic79xx_detect(). 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint aic79xx_detect_complete; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * So that we can set how long each device is given as a selection timeout. 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The table of values goes like this: 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 - 256ms 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 - 128ms 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 - 64ms 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3 - 32ms 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We default to 256ms because some older devices need a longer time 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to respond to initial selection. 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic uint32_t aic79xx_seltime; 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Certain devices do not perform any aging on commands. Should the 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device be saturated by commands in one portion of the disk, it is 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * possible for transactions on far away sectors to never be serviced. 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * To handle these devices, we can periodically send an ordered tag to 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * force all outstanding transactions to be serviced prior to a new 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * transaction. 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsuint32_t aic79xx_periodic_otag; 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Module information and settable options. 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *aic79xx = NULL; 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("Maintainer: Justin T. Gibbs <gibbs@scsiguy.com>"); 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("Adaptec Aic790X U320 SCSI Host Bus Adapter driver"); 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("Dual BSD/GPL"); 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_VERSION(AIC79XX_DRIVER_VERSION); 34373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckemodule_param(aic79xx, charp, 0444); 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(aic79xx, 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds"period delimited, options string.\n" 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" verbose Enable verbose/diagnostic logging\n" 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" allow_memio Allow device registers to be memory mapped\n" 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" debug Bitmask of debug values to enable\n" 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" no_reset Supress initial bus resets\n" 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" extended Enable extended geometry on all controllers\n" 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" periodic_otag Send an ordered tagged transaction\n" 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" periodically to prevent tag starvation.\n" 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" This may be required by some older disk\n" 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" or drives/RAID arrays.\n" 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" reverse_scan Sort PCI devices highest Bus/Slot to lowest\n" 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" tag_info:<tag_str> Set per-target tag depth\n" 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" global_tag_depth:<int> Global tag depth for all targets on all buses\n" 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" slewrate:<slewrate_list>Set the signal slew rate (0-15).\n" 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" precomp:<pcomp_list> Set the signal precompensation (0-7).\n" 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" amplitude:<int> Set the signal amplitude (0-7).\n" 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" seltime:<int> Selection Timeout:\n" 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" (0/256ms,1/128ms,2/64ms,3/32ms)\n" 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds"\n" 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Sample /etc/modprobe.conf line:\n" 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Enable verbose logging\n" 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Set tag depth on Controller 2/Target 2 to 10 tags\n" 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" Shorten the selection timeout to 128ms\n" 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds"\n" 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds" options aic79xx 'aic79xx=verbose.tag_info:{{}.{}.{..10}}.seltime:1'\n" 37073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"\n"); 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_handle_scsi_status(struct ahd_softc *, 37373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_device *, 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scb *); 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, 37673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd); 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_sem_timeout(u_long arg); 37873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag); 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd); 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u_int ahd_linux_user_tagdepth(struct ahd_softc *ahd, 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_devinfo *devinfo); 38273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_device_queue_depth(struct scsi_device *); 38360a13213840296b1e32d6781653a0eaa83d04382Hannes Reineckestatic int ahd_linux_run_command(struct ahd_softc*, 38473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *, 38560a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke struct scsi_cmnd *); 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ahd_linux_setup_tag_info_global(char *p); 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic aic_option_callback_t ahd_linux_setup_tag_info; 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic aic_option_callback_t ahd_linux_setup_iocell_info; 38973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int aic79xx_setup(char *c); 39073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int ahd_linux_next_unit(void); 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/****************************** Inlines ***************************************/ 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*); 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline void 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb) 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 39873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int direction; 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd = scb->io_ctx; 402be7db055dd7261522557046370f49160728e3847<hch@lst.de> direction = cmd->sc_data_direction; 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE); 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cmd->use_sg != 0) { 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scatterlist *sg; 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sg = (struct scatterlist *)cmd->request_buffer; 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unmap_sg(ahd->dev_softc, sg, cmd->use_sg, direction); 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (cmd->request_bufflen != 0) { 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unmap_single(ahd->dev_softc, 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scb->platform_data->buf_busaddr, 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd->request_bufflen, direction); 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************** Macros **************************************/ 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUILD_SCSIID(ahd, cmd) \ 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((((cmd)->device->id << TID_SHIFT) & TID) | (ahd)->our_id) 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Try to detect an Adaptec 79XX controller. 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 42473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_detect(struct scsi_host_template *template) 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int found; 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error = 0; 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If we've been passed any parameters, process them now. 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (aic79xx) 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds aic79xx_setup(aic79xx); 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds template->proc_name = "aic79xx"; 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Initialize our softc list lock prior to 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * probing for any adapters. 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_list_lockinit(); 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = ahd_linux_pci_init(); 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Register with the SCSI layer all 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * controllers we've found. 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds found = 0; 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds TAILQ_FOREACH(ahd, &ahd_tailq, links) { 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ahd_linux_register_host(ahd, template) == 0) 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds found++; 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds aic79xx_detect_complete++; 46173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return found; 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return a string describing the driver. 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const char * 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_info(struct Scsi_Host *host) 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static char buffer[512]; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char ahd_info[256]; 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *bp; 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bp = &buffer[0]; 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)host->hostdata; 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(bp, 0, sizeof(buffer)); 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev "); 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, AIC79XX_DRIVER_VERSION); 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, "\n"); 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, " <"); 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ahd->description); 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ">\n"); 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, " "); 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_controller_info(ahd, ahd_info); 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, ahd_info); 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcat(bp, "\n"); 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (bp); 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Queue an SCB to the controller. 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 49673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_queue(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *)) 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 49973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev = scsi_transport_device_data(cmd->device); 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Close the race of a command that was in the process of 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * being queued to us just as our simq was frozen. Let 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DV commands through so long as we are only frozen to 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * perform DV. 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 50973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->qfrozen != 0) { 51060a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke printf("%s: queue frozen\n", ahd_name(ahd)); 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51260a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke return SCSI_MLQUEUE_HOST_BUSY; 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 51460a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke 51560a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke /* 51660a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke * Save the callback on completion function. 51760a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke */ 51860a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke cmd->scsi_done = scsi_done; 51960a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd->result = CAM_REQ_INPROG << 16; 52160a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke 52260a13213840296b1e32d6781653a0eaa83d04382Hannes Reinecke return ahd_linux_run_command(ahd, dev, cmd); 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 52573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic inline struct scsi_target ** 52673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_in_softc(struct scsi_target *starget) 52773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 52873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 52973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata); 53073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int target_offset; 53173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 53273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_offset = starget->id; 53373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (starget->channel != 0) 53473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_offset += 8; 53573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 53673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return &ahd->platform_data->starget[target_offset]; 53773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 53873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 54073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_alloc(struct scsi_target *starget) 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 54273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 54373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata); 54473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 54573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget); 54673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ = scsi_transport_target_data(starget); 54773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 54873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 54973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 55073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char channel = starget->channel + 'A'; 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 55273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 55373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 55473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(*ahd_targp != NULL); 55573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 55673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ahd_targp = starget; 55773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(targ, 0, sizeof(*targ)); 55873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 55973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, 56073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->id, &tstate); 56173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, ahd->our_id, starget->id, 56273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, channel, 56373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 56473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_min_period(starget) = AHD_SYNCRATE_MAX; /* We can do U320 */ 56573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0) 56673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_max_offset(starget) = MAX_OFFSET_PACED_BUG; 56773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else 56873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_max_offset(starget) = MAX_OFFSET_PACED; 56973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_max_width(starget) = ahd->features & AHD_WIDE; 57073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 57173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, 0, 0, 0, 57273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, /*paused*/FALSE); 57373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 57473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, /*paused*/FALSE); 57573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 57673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 57773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 57873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 57973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 58073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 58173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_target_destroy(struct scsi_target *starget) 58273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 58373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget); 58473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 58573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ahd_targp = NULL; 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 58973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_slave_alloc(struct scsi_device *sdev) 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 59173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = 59273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)sdev->host->hostdata); 59373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget = sdev->sdev_target; 59473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ = scsi_transport_target_data(starget); 59573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bootverbose) 59873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: Slave Alloc %d\n", ahd_name(ahd), sdev->id); 59973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 60073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(targ->sdev[sdev->lun] != NULL); 60173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 60273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(sdev); 60373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(dev, 0, sizeof(*dev)); 60473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 60573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 60673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We start out life using untagged 60773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * transactions of which we allow one. 60873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 60973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 61073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 61273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Set maxtags to 0. This will be changed if we 61373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * later determine that we are dealing with 61473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * a tagged queuing capable device. 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 61673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = 0; 61773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 61873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke targ->sdev[sdev->lun] = sdev; 61973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 62373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 62473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_slave_configure(struct scsi_device *sdev) 62573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 62673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 62773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 62873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = *((struct ahd_softc **)sdev->host->hostdata); 62973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 63073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: Slave Configure %d\n", ahd_name(ahd), sdev->id); 63173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 63273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_device_queue_depth(sdev); 63373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 63473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Initial Domain Validation */ 63573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!spi_initial_dv(sdev->sdev_target)) 63673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_dv_device(sdev); 63773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 63873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 63973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 64073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 64273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_slave_destroy(struct scsi_device *sdev) 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 64573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev = scsi_transport_device_data(sdev); 64673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ = scsi_transport_target_data(sdev->sdev_target); 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 64873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = *((struct ahd_softc **)sdev->host->hostdata); 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bootverbose) 65073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: Slave Destroy %d\n", ahd_name(ahd), sdev->id); 65173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 65273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(dev->active); 65373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 65473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke targ->sdev[sdev->lun] = NULL; 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(__i386__) 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return the disk geometry for the given SCSI device. 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_biosparam(struct scsi_device *sdev, struct block_device *bdev, 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sector_t capacity, int geom[]) 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uint8_t *bh; 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int heads; 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sectors; 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cylinders; 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int extended; 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *((struct ahd_softc **)sdev->host->hostdata); 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bh = scsi_bios_ptable(bdev); 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bh) { 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = scsi_partsize(bh, capacity, 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &geom[2], &geom[0], &geom[1]); 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(bh); 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret != -1) 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ret); 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds heads = 64; 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sectors = 32; 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cylinders = aic_sector_div(capacity, heads, sectors); 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (aic79xx_extended != 0) 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extended = 1; 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extended = (ahd->flags & AHD_EXTENDED_TRANS_A) != 0; 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (extended && cylinders >= 1024) { 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds heads = 255; 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sectors = 63; 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cylinders = aic_sector_div(capacity, heads, sectors); 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[0] = heads; 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[1] = sectors; 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom[2] = cylinders; 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Abort the current SCSI command(s). 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 70873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_abort(struct scsi_cmnd *cmd) 70973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 71073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int error; 71173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 71273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke error = ahd_linux_queue_recovery_cmd(cmd, SCB_ABORT); 71373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (error != 0) 71473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("aic79xx_abort returns 0x%x\n", error); 71573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return error; 71673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 71773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 71873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 71973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Attempt to send a target reset message to the device that timed out. 72073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 72173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 72273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_dev_reset(struct scsi_cmnd *cmd) 72373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 72473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int error; 72573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 72673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke error = ahd_linux_queue_recovery_cmd(cmd, SCB_DEVICE_RESET); 72773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (error != 0) 72873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("aic79xx_dev_reset returns 0x%x\n", error); 72973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return error; 73073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 73173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 73273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 73373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Reset the SCSI bus. 73473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 73573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 73673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_bus_reset(struct scsi_cmnd *cmd) 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ahd_softc *ahd; 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_long s; 74073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int found; 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 74373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#ifdef AHD_DEBUG 74473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) 74573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: Bus reset called for cmd %p\n", 74673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd); 74773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 74873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &s); 74973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke found = ahd_reset_channel(ahd, cmd->device->channel + 'A', 75073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*initiate reset*/TRUE); 75173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &s); 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 75373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 75473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: SCSI bus reset delivered. " 75573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke "%d SCBs aborted.\n", ahd_name(ahd), found); 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 75773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (SUCCESS); 75873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 76073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestruct scsi_host_template aic79xx_driver_template = { 76173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .module = THIS_MODULE, 76273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .name = "aic79xx", 76373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .proc_info = ahd_linux_proc_info, 76473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .info = ahd_linux_info, 76573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .queuecommand = ahd_linux_queue, 76673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_abort_handler = ahd_linux_abort, 76773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_device_reset_handler = ahd_linux_dev_reset, 76873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .eh_bus_reset_handler = ahd_linux_bus_reset, 76973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#if defined(__i386__) 77073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .bios_param = ahd_linux_biosparam, 77173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 77273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .can_queue = AHD_MAX_QUEUE, 77373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .this_id = -1, 77473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .cmd_per_lun = 2, 77573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .use_clustering = ENABLE_CLUSTERING, 77673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .slave_alloc = ahd_linux_slave_alloc, 77773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .slave_configure = ahd_linux_slave_configure, 77873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .slave_destroy = ahd_linux_slave_destroy, 77973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .target_alloc = ahd_linux_target_alloc, 78073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .target_destroy = ahd_linux_target_destroy, 78173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke}; 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 78373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/******************************** Bus DMA *************************************/ 78473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 78573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dma_tag_create(struct ahd_softc *ahd, bus_dma_tag_t parent, 78673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t alignment, bus_size_t boundary, 78773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t lowaddr, dma_addr_t highaddr, 78873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_filter_t *filter, void *filterarg, 78973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t maxsize, int nsegments, 79073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t maxsegsz, int flags, bus_dma_tag_t *ret_tag) 79173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 79273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_tag_t dmat; 79373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 79473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat = malloc(sizeof(*dmat), M_DEVBUF, M_NOWAIT); 79573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dmat == NULL) 79673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 79973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Linux is very simplistic about DMA memory. For now don't 80073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * maintain all specification information. Once Linux supplies 80173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * better facilities for doing these operations, or the 80273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * needs of this particular driver change, we might need to do 80373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * more here. 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 80573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->alignment = alignment; 80673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->boundary = boundary; 80773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->maxsize = maxsize; 80873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *ret_tag = dmat; 80973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 81073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 81273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 81373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dma_tag_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat) 81473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 81573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke free(dmat, M_DEVBUF); 81673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 81873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 81973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamem_alloc(struct ahd_softc *ahd, bus_dma_tag_t dmat, void** vaddr, 82073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int flags, bus_dmamap_t *mapp) 82173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 82273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *vaddr = pci_alloc_consistent(ahd->dev_softc, 82373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dmat->maxsize, mapp); 82473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (*vaddr == NULL) 82573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 82673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return(0); 82773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 82973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 83073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamem_free(struct ahd_softc *ahd, bus_dma_tag_t dmat, 83173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void* vaddr, bus_dmamap_t map) 83273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 83373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pci_free_consistent(ahd->dev_softc, dmat->maxsize, 83473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke vaddr, map); 83573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 83673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 83773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 83873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map, 83973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *buf, bus_size_t buflen, bus_dmamap_callback_t *cb, 84073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *cb_arg, int flags) 84173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 84373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Assume for now that this will only be used during 84473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * initialization and not for per-transaction buffer mapping. 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 84673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_dma_segment_t stack_sg; 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 84873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke stack_sg.ds_addr = map; 84973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke stack_sg.ds_len = dmat->maxsize; 85073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cb(cb_arg, &stack_sg, /*nseg*/1, /*error*/0); 85173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 85273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 85473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 85573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map) 85673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 85773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 85973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 86073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_dmamap_unload(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map) 86173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 86273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Nothing to do */ 86373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (0); 86473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 86673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/********************* Platform Dependent Functions ***************************/ 86773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 86873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Compare "left hand" softc with "right hand" softc, returning: 86973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * < 0 - lahd has a lower priority than rahd 87073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * 0 - Softcs are equal 87173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * > 0 - lahd has a higher priority than rahd 87273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 87373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 87473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) 87573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 87673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int value; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 87973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Under Linux, cards are ordered as follows: 88073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * 1) PCI devices that are marked as the boot controller. 88173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * 2) PCI devices with BIOS enabled sorted by bus/slot/func. 88273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * 3) All remaining PCI devices sorted by bus/slot/func. 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 88473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#if 0 88573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = (lahd->flags & AHD_BOOT_CHANNEL) 88673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - (rahd->flags & AHD_BOOT_CHANNEL); 88773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (value != 0) 88873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Controllers set for boot have a *higher* priority */ 88973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (value); 89073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 89273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = (lahd->flags & AHD_BIOS_ENABLED) 89373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - (rahd->flags & AHD_BIOS_ENABLED); 89473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (value != 0) 89573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Controllers with BIOS enabled have a *higher* priority */ 89673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (value); 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 89873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Still equal. Sort by bus/slot/func. */ 89973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_reverse_scan != 0) 90073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = ahd_get_pci_bus(lahd->dev_softc) 90173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_pci_bus(rahd->dev_softc); 90273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else 90373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = ahd_get_pci_bus(rahd->dev_softc) 90473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_pci_bus(lahd->dev_softc); 90573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (value != 0) 90673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (value); 90773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_reverse_scan != 0) 90873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = ahd_get_pci_slot(lahd->dev_softc) 90973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_pci_slot(rahd->dev_softc); 91073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else 91173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = ahd_get_pci_slot(rahd->dev_softc) 91273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_pci_slot(lahd->dev_softc); 91373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (value != 0) 91473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (value); 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 91673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke value = rahd->channel - lahd->channel; 91773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (value); 91873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 92073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 92173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_iocell_info(u_long index, int instance, int targ, int32_t value) 92273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 92473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((instance >= 0) 92573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (instance < NUM_ELEMENTS(aic79xx_iocell_info))) { 92673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint8_t *iocell_info; 92773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 92873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_info = (uint8_t*)&aic79xx_iocell_info[instance]; 92973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_info[index] = value & 0xFFFF; 93073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 93173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("iocell[%d:%ld] = %d\n", instance, index, value); 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 93373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 93573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 93673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_tag_info_global(char *p) 93773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 93873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int tags, i, j; 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 94073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = simple_strtoul(p + 1, NULL, 0) & 0xff; 94173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Setting Global Tags= %d\n", tags); 94273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 94373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < NUM_ELEMENTS(aic79xx_tag_info); i++) { 94473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (j = 0; j < AHD_NUM_TARGETS; j++) { 94573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke aic79xx_tag_info[i].tag_commands[j] = tags; 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 95173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_setup_tag_info(u_long arg, int instance, int targ, int32_t value) 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 95473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((instance >= 0) && (targ >= 0) 95573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (instance < NUM_ELEMENTS(aic79xx_tag_info)) 95673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (targ < AHD_NUM_TARGETS)) { 95773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke aic79xx_tag_info[instance].tag_commands[targ] = value & 0x1FF; 95873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose) 95973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("tag_info[%d:%d] = %d\n", instance, targ, value); 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 96473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Handle Linux boot parameters. This routine allows for assigning a value 96573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to a parameter with a ':' between the parameter and the value. 96673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * ie. aic79xx=stpwlev:1,extended 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 96973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeaic79xx_setup(char *s) 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 97173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int i, n; 97273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *p; 97373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *end; 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 97573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke static struct { 97673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke const char *name; 97773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint32_t *flag; 97873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } options[] = { 97973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "extended", &aic79xx_extended }, 98073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "no_reset", &aic79xx_no_reset }, 98173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "verbose", &aic79xx_verbose }, 98273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "allow_memio", &aic79xx_allow_memio}, 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 98473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "debug", &ahd_debug }, 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 98673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "reverse_scan", &aic79xx_reverse_scan }, 98773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "periodic_otag", &aic79xx_periodic_otag }, 98873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "pci_parity", &aic79xx_pci_parity }, 98973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "seltime", &aic79xx_seltime }, 99073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "tag_info", NULL }, 99173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "global_tag_depth", NULL}, 99273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "slewrate", NULL }, 99373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "precomp", NULL }, 99473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { "amplitude", NULL }, 99573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke }; 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 99773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke end = strchr(s, '\0'); 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 99973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 100073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * XXX ia64 gcc isn't smart enough to know that NUM_ELEMENTS 100173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * will never be 0 in this case. 100273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 100373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke n = 0; 100473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 100573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke while ((p = strsep(&s, ",.")) != NULL) { 100673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (*p == '\0') 100773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke continue; 100873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < NUM_ELEMENTS(options); i++) { 100973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 101073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke n = strlen(options[i].name); 101173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (strncmp(options[i].name, p, n) == 0) 101273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 101373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 101473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (i == NUM_ELEMENTS(options)) 101573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke continue; 101673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 101773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (strncmp(p, "global_tag_depth", n) == 0) { 101873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_setup_tag_info_global(p + n); 101973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "tag_info", n) == 0) { 102073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke s = aic_parse_brace_option("tag_info", p + n, end, 102173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2, ahd_linux_setup_tag_info, 0); 102273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "slewrate", n) == 0) { 102373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke s = aic_parse_brace_option("slewrate", 102473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 102573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_SLEWRATE_INDEX); 102673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "precomp", n) == 0) { 102773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke s = aic_parse_brace_option("precomp", 102873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 102973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_PRECOMP_INDEX); 103073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (strncmp(p, "amplitude", n) == 0) { 103173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke s = aic_parse_brace_option("amplitude", 103273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke p + n, end, 1, ahd_linux_setup_iocell_info, 103373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AIC79XX_AMPLITUDE_INDEX); 103473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (p[n] == ':') { 103573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) = simple_strtoul(p + n + 1, NULL, 0); 103673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (!strncmp(p, "verbose", n)) { 103773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) = 1; 103873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 103973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *(options[i].flag) ^= 0xFFFFFFFF; 104073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 104173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 104273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 1; 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 104573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke__setup("aic79xx=", aic79xx_setup); 104673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 104773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeuint32_t aic79xx_verbose; 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 105073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *template) 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 105273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char buf[80]; 105373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *host; 105473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char *new_name; 105573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long s; 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 105773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke template->name = ahd->description; 105873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host = scsi_host_alloc(template, sizeof(struct ahd_softc *)); 105973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (host == NULL) 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ENOMEM); 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 106273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke *((struct ahd_softc **)host->hostdata) = ahd; 106373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &s); 106473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_assign_lock(host, &ahd->platform_data->spin_lock); 106573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->host = host; 106673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->can_queue = AHD_MAX_QUEUE; 106773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->cmd_per_lun = 2; 106873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->sg_tablesize = AHD_NSEG; 106973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->this_id = ahd->our_id; 107073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->irq = ahd->platform_data->irq; 107173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_id = (ahd->features & AHD_WIDE) ? 16 : 8; 107273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_lun = AHD_NUM_LUNS; 107373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->max_channel = 0; 107473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->sg_tablesize = AHD_NSEG; 107573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_unit(ahd, ahd_linux_next_unit()); 107673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sprintf(buf, "scsi%d", host->host_no); 107773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT); 107873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (new_name != NULL) { 107973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke strcpy(new_name, buf); 108073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_name(ahd, new_name); 108173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 108273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->unique_id = ahd->unit; 108373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_initialize_scsi_bus(ahd); 108473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_intr_enable(ahd, TRUE); 108573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &s); 108673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 108773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke host->transportt = ahd_linux_transport_template; 108873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 108973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_add_host(host, &ahd->dev_softc->dev); /* XXX handle failure */ 109073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_scan_host(host); 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 109473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeuint64_t 109573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_get_memsize(void) 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 109773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct sysinfo si; 109873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 109973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke si_meminfo(&si); 110073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return ((uint64_t)si.totalram << PAGE_SHIFT); 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 110373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 110473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Find the smallest available unit number to use 110573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * for a new device. We don't just use a static 110673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * count to handle the "repeated hot-(un)plug" 110773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * scenario. 110873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 110973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 111073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_next_unit(void) 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 111273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 111373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int unit; 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 111573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unit = 0; 111673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeretry: 111773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke TAILQ_FOREACH(ahd, &ahd_tailq, links) { 111873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->unit == unit) { 111973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unit++; 112073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto retry; 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 112273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 112373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (unit); 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 112673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 112773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Place the SCSI bus into a known state by either resetting it, 112873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * or forcing transfer negotiations on the next command to any 112973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * target. 113073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 113173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 113273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_initialize_scsi_bus(struct ahd_softc *ahd) 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 113473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int target_id; 113573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int numtarg; 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 113773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_id = 0; 113873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke numtarg = 0; 113973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 114073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_no_reset != 0) 114173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->flags &= ~AHD_RESET_BUS_A; 114273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 114373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->flags & AHD_RESET_BUS_A) != 0) 114473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_reset_channel(ahd, 'A', /*initiate_reset*/TRUE); 114573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else 114673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke numtarg = (ahd->features & AHD_WIDE) ? 16 : 8; 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 114973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Force negotiation to async for all targets that 115073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * will not see an initial bus reset. 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 115273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (; target_id < numtarg; target_id++) { 115373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 115473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 115573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 115673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 115773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 115873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_id, &tstate); 115973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, ahd->our_id, target_id, 116073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, 'A', ROLE_INITIATOR); 116173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_update_neg_request(ahd, &devinfo, tstate, 116273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo, AHD_NEG_ALWAYS); 116373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 116473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Give the bus some time to recover */ 116573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->flags & AHD_RESET_BUS_A) != 0) { 116673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_freeze_simq(ahd); 116773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke init_timer(&ahd->platform_data->reset_timer); 116873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->reset_timer.data = (u_long)ahd; 116973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->reset_timer.expires = 117073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke jiffies + (AIC79XX_RESET_DELAY * HZ)/1000; 117173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->reset_timer.function = 117273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (ahd_linux_callback_t *)ahd_release_simq; 117373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke add_timer(&ahd->platform_data->reset_timer); 117473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 117873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 118073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data = 118173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke malloc(sizeof(struct ahd_platform_data), M_DEVBUF, M_NOWAIT); 118273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data == NULL) 118373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (ENOMEM); 118473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(ahd->platform_data, 0, sizeof(struct ahd_platform_data)); 118573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->irq = AHD_LINUX_NOIRQ; 118673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lockinit(ahd); 118773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke init_MUTEX_LOCKED(&ahd->platform_data->eh_sem); 118873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->seltime = (aic79xx_seltime & 0x3) << 4; 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 119273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 119373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_free(struct ahd_softc *ahd) 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 119573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget; 119673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int i, j; 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 119873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data != NULL) { 119973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->host != NULL) { 120073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_remove_host(ahd->platform_data->host); 120173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_host_put(ahd->platform_data->host); 120273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 120473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* destroy all of the device and target objects */ 120573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < AHD_NUM_TARGETS; i++) { 120673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget = ahd->platform_data->starget[i]; 120773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (starget != NULL) { 120873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (j = 0; j < AHD_NUM_LUNS; j++) { 120973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ = 121073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_transport_target_data(starget); 121173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (targ->sdev[j] == NULL) 121273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke continue; 121373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke targ->sdev[j] = NULL; 121473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 121573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->starget[i] = NULL; 121673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 121773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 121973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->irq != AHD_LINUX_NOIRQ) 122073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke free_irq(ahd->platform_data->irq, ahd); 122173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[0] == BUS_SPACE_PIO 122273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[0].ioport != 0) 122373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_region(ahd->bshs[0].ioport, 256); 122473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[1] == BUS_SPACE_PIO 122573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[1].ioport != 0) 122673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_region(ahd->bshs[1].ioport, 256); 122773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->tags[0] == BUS_SPACE_MEMIO 122873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd->bshs[0].maddr != NULL) { 122973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iounmap(ahd->bshs[0].maddr); 123073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke release_mem_region(ahd->platform_data->mem_busaddr, 123173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 0x1000); 123273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 123373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke free(ahd->platform_data, M_DEVBUF); 123473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 123773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 123873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_init(struct ahd_softc *ahd) 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 124073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 124173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Lookup and commit any modified IO Cell options. 124273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 124373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->unit < NUM_ELEMENTS(aic79xx_iocell_info)) { 124473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_iocell_opts *iocell_opts; 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 124673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke iocell_opts = &aic79xx_iocell_info[ahd->unit]; 124773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->precomp != AIC79XX_DEFAULT_PRECOMP) 124873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_PRECOMP(ahd, iocell_opts->precomp); 124973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->slewrate != AIC79XX_DEFAULT_SLEWRATE) 125073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_SLEWRATE(ahd, iocell_opts->slewrate); 125173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (iocell_opts->amplitude != AIC79XX_DEFAULT_AMPLITUDE) 125273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_SET_AMPLITUDE(ahd, iocell_opts->amplitude); 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 125773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 125873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb) 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 126073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_platform_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb), 126173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_GET_CHANNEL(ahd, scb), 126273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_GET_LUN(scb), SCB_LIST_NULL, 126373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_UNKNOWN, CAM_REQUEUE_REQ); 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 126673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 126773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_set_tags(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, 126873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_queue_alg alg) 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 127073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget; 127173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ; 127273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 127373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_device *sdev; 127473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int was_queuing; 127573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int now_queuing; 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 127773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget = ahd->platform_data->starget[devinfo->target]; 127873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke targ = scsi_transport_target_data(starget); 127973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(targ == NULL); 128073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev = targ->sdev[devinfo->lun]; 128173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (sdev == NULL) 128273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return; 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 128473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(sdev); 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 128673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev == NULL) 128773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return; 128873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke was_queuing = dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED); 128973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (alg) { 129073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 129173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_NONE: 129273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = 0; 129373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 129473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_BASIC: 129573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = AHD_DEV_Q_BASIC; 129673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 129773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_QUEUE_TAGGED: 129873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke now_queuing = AHD_DEV_Q_TAGGED; 129973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 130073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 130173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & AHD_DEV_FREEZE_TIL_EMPTY) == 0 130273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (was_queuing != now_queuing) 130373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (dev->active != 0)) { 130473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_FREEZE_TIL_EMPTY; 130573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->qfrozen++; 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 130873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags &= ~(AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED|AHD_DEV_PERIODIC_OTAG); 130973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (now_queuing) { 131073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int usertags; 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 131273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke usertags = ahd_linux_user_tagdepth(ahd, devinfo); 131373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!was_queuing) { 131473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 131573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Start out agressively and allow our 131673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * dynamic queue depth algorithm to take 131773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * care of the rest. 131873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 131973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = usertags; 132073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = dev->maxtags - dev->active; 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 132273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->maxtags == 0) { 132373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 132473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Queueing is disabled by the user. 132573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 132673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 132773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (alg == AHD_QUEUE_TAGGED) { 132873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_Q_TAGGED; 132973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (aic79xx_periodic_otag != 0) 133073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_PERIODIC_OTAG; 133173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else 133273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->flags |= AHD_DEV_Q_BASIC; 133373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 133473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* We can only have one opening. */ 133573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = 0; 133673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1 - dev->active; 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 133973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { 134073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_DEV_Q_BASIC: 134173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_adjust_queue_depth(sdev, 134273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke MSG_SIMPLE_TASK, 134373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings + dev->active); 134473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 134573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AHD_DEV_Q_TAGGED: 134673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_adjust_queue_depth(sdev, 134773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke MSG_ORDERED_TASK, 134873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings + dev->active); 134973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 135073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 135273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We allow the OS to queue 2 untagged transactions to 135373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * us at any time even though we can only execute them 135473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * serially on the controller/device. This should 135573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * remove some latency. 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 135773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_adjust_queue_depth(sdev, 135873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*NON-TAGGED*/0, 135973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*queue depth*/2); 136073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 136473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeint 136573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_abort_scbs(struct ahd_softc *ahd, int target, char channel, 136673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int lun, u_int tag, role_t role, uint32_t status) 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 136873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 137173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic u_int 137273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_user_tagdepth(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 137473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke static int warned_user; 137573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int tags; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 137773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = 0; 137873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->user_discenable & devinfo->target_mask) != 0) { 137973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->unit >= NUM_ELEMENTS(aic79xx_tag_info)) { 138073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 138173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (warned_user == 0) { 138273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf(KERN_WARNING 138373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: WARNING: Insufficient tag_info instances\n" 138473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: for installed controllers. Using defaults\n" 138573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: Please update the aic79xx_tag_info array in\n" 138673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke"aic79xx: the aic79xx_osm.c source file.\n"); 138773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke warned_user++; 138873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 138973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = AHD_MAX_QUEUE; 139073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 139173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke adapter_tag_info_t *tag_info; 139273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 139373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tag_info = &aic79xx_tag_info[ahd->unit]; 139473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = tag_info->tag_commands[devinfo->target_offset]; 139573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tags > AHD_MAX_QUEUE) 139673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = AHD_MAX_QUEUE; 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 139973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (tags); 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 140373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Determines the queue depth for a given device. 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 140673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_device_queue_depth(struct scsi_device *sdev) 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 140873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 140973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int tags; 141073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)sdev->host->hostdata); 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 141273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, 141373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->our_id, 141473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->id, sdev->lun, 141573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->channel == 0 ? 'A' : 'B', 141673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 141773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tags = ahd_linux_user_tagdepth(ahd, &devinfo); 141873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tags != 0 && sdev->tagged_supported != 0) { 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 142073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_tags(ahd, &devinfo, AHD_QUEUE_TAGGED); 142173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_devinfo(ahd, &devinfo); 142273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Tagged Queuing enabled. Depth %d\n", tags); 142373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 142473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_tags(ahd, &devinfo, AHD_QUEUE_NONE); 142573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 142673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 142873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 142973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, 143073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd) 143173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 143273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *scb; 143373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct hardware_scb *hscb; 143473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 143573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 143673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int col_idx; 143773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint16_t mask; 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 144073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Get an scb to use. 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 144273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, 144373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->id, &tstate); 144473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) == 0 144573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 144673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke col_idx = AHD_NEVER_COL_IDX; 144773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 144873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke col_idx = AHD_BUILD_COL_IDX(cmd->device->id, 144973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun); 145073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 145173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 145273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->flags |= AHD_RESOURCE_SHORTAGE; 145373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return SCSI_MLQUEUE_HOST_BUSY; 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 145673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->io_ctx = cmd; 145773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->dev = dev; 145873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb = scb->hscb; 145973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->host_scribble = (char *)scb; 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 146173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 146273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Fill out basics of the HSCB. 146373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 146473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control = 0; 146573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->scsiid = BUILD_SCSIID(ahd, cmd); 146673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->lun = cmd->device->lun; 146773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->hscb->task_management = 0; 146873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke mask = SCB_GET_TARGET_MASK(ahd, scb); 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 147073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->user_discenable & mask) != 0) 147173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= DISCENB; 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 147373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) 147473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_PACKETIZED; 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 147673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((tstate->auto_negotiate & mask) != 0) { 147773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_AUTO_NEGOTIATE; 147873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->hscb->control |= MK_MESSAGE; 147973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 148073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 148173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) { 148273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int msg_bytes; 148373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint8_t tag_msgs[2]; 148473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 148573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke msg_bytes = scsi_populate_tag_msg(cmd, tag_msgs); 148673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (msg_bytes && tag_msgs[0] != MSG_SIMPLE_TASK) { 148773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= tag_msgs[0]; 148873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tag_msgs[0] == MSG_ORDERED_TASK) 148973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 149073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else 149173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->commands_since_idle_or_otag == AHD_OTAG_THRESH 149273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (dev->flags & AHD_DEV_Q_TAGGED) != 0) { 149373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= MSG_ORDERED_TASK; 149473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 149573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 149673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->control |= MSG_SIMPLE_TASK; 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 149873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 150073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke hscb->cdb_len = cmd->cmd_len; 150173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memcpy(hscb->shared_data.idata.cdb, cmd->cmnd, hscb->cdb_len); 150273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 150373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = 0; 150473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_residual(scb, 0); 150573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_sense_residual(scb, 0); 150673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->sg_count = 0; 150773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (cmd->use_sg != 0) { 150873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *sg; 150973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scatterlist *cur_seg; 151073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int nseg; 151173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int dir; 151273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 151373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cur_seg = (struct scatterlist *)cmd->request_buffer; 151473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dir = cmd->sc_data_direction; 151573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke nseg = pci_map_sg(ahd->dev_softc, cur_seg, 151673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->use_sg, dir); 151773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = 0; 151873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (sg = scb->sg_list; nseg > 0; nseg--, cur_seg++) { 151973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t addr; 152073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_size_t len; 152173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 152273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke addr = sg_dma_address(cur_seg); 152373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke len = sg_dma_len(cur_seg); 152473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len += len; 152573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sg = ahd_sg_setup(ahd, scb, sg, addr, len, 152673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /*last*/nseg == 1); 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 152873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (cmd->request_bufflen != 0) { 152973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke void *sg; 153073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dma_addr_t addr; 153173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int dir; 153273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 153373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sg = scb->sg_list; 153473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dir = cmd->sc_data_direction; 153573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke addr = pci_map_single(ahd->dev_softc, 153673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->request_buffer, 153773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->request_bufflen, dir); 153873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->xfer_len = cmd->request_bufflen; 153973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->platform_data->buf_busaddr = addr; 154073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sg = ahd_sg_setup(ahd, scb, sg, addr, 154173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->request_bufflen, /*last*/TRUE); 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 154373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 154473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 154573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings--; 154673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active++; 154773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_issued++; 154873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 154973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->flags & AHD_DEV_PERIODIC_OTAG) != 0) 155073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag++; 155173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->flags |= SCB_ACTIVE; 155273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_queue_scb(ahd, scb); 155373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 155473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 155773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 155873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * SCSI controller interrupt handler. 155973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 156073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeirqreturn_t 156173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs) 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 156373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 156473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long flags; 156573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int ours; 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 156773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = (struct ahd_softc *) dev_id; 156873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 156973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ours = ahd_intr(ahd); 157073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 157173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return IRQ_RETVAL(ours); 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 157573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_platform_flushwork(struct ahd_softc *ahd) 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 157773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 158173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_send_async(struct ahd_softc *ahd, char channel, 158273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int target, u_int lun, ac_code code, void *arg) 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 158473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (code) { 158573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_TRANSFER_NEG: 158673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 158773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke char buf[80]; 158873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_target *starget; 158973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_target *targ; 159073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct info_str info; 159173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo; 159273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 159373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int target_ppr_options; 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 159573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke BUG_ON(target == CAM_TARGET_WILDCARD); 159673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 159773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.buffer = buf; 159873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.length = sizeof(buf); 159973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.offset = 0; 160073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke info.pos = 0; 160173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, 160273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target, &tstate); 160373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 160473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 160573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Don't bother reporting results while 160673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * negotiations are still pending. 160773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 160873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tinfo->curr.period != tinfo->goal.period 160973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.width != tinfo->goal.width 161073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.offset != tinfo->goal.offset 161173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || tinfo->curr.ppr_options != tinfo->goal.ppr_options) 161273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose == 0) 161373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 161473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 161573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 161673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Don't bother reporting results that 161773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * are identical to those last reported. 161873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 161973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget = ahd->platform_data->starget[target]; 1620fc789a93994858b5e5a46afb96d0dcf6cc1b6f08James Bottomley if (starget == NULL) 162173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 1622fc789a93994858b5e5a46afb96d0dcf6cc1b6f08James Bottomley targ = scsi_transport_target_data(starget); 162373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 162473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke target_ppr_options = 162573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0) 162673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke + (spi_qas(starget) ? MSG_EXT_PPR_QAS_REQ : 0) 16273f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_iu(starget) ? MSG_EXT_PPR_IU_REQ : 0) 16283f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_rd_strm(starget) ? MSG_EXT_PPR_RD_STRM : 0) 16293f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_pcomp_en(starget) ? MSG_EXT_PPR_PCOMP_EN : 0) 16303f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley + (spi_rti(starget) ? MSG_EXT_PPR_RTI : 0) 163188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley + (spi_wr_flow(starget) ? MSG_EXT_PPR_WR_FLOW : 0) 163288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley + (spi_hold_mcs(starget) ? MSG_EXT_PPR_HOLD_MCS : 0); 163373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 163473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (tinfo->curr.period == spi_period(starget) 163573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.width == spi_width(starget) 163673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.offset == spi_offset(starget) 163773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && tinfo->curr.ppr_options == target_ppr_options) 163873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bootverbose == 0) 163973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 164073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 164173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_period(starget) = tinfo->curr.period; 164273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_width(starget) = tinfo->curr.width; 164373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_offset(starget) = tinfo->curr.offset; 1644a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ ? 1 : 0; 1645a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ ? 1 : 0; 1646a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ ? 1 : 0; 16473f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_rd_strm(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RD_STRM ? 1 : 0; 16483f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_pcomp_en(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_PCOMP_EN ? 1 : 0; 16493f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_rti(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RTI ? 1 : 0; 16503f40d7d6eaadecd48f6d1c0c4a5ad414b992260eJames Bottomley spi_wr_flow(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_WR_FLOW ? 1 : 0; 165188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley spi_hold_mcs(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_HOLD_MCS ? 1 : 0; 165273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_display_xfer_agreement(starget); 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 165473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 165573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_SENT_BDR: 165673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 165773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke WARN_ON(lun != CAM_LUN_WILDCARD); 165873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_report_device_reset(ahd->platform_data->host, 165973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke channel - 'A', target); 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 166273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case AC_BUS_RESET: 166373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->host != NULL) { 166473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_report_bus_reset(ahd->platform_data->host, 166573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke channel - 'A'); 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 166773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 166873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 166973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke panic("ahd_send_async: Unexpected async event"); 167073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 167373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke/* 167473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Calls the higher level scsi done function and frees the scb. 167573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 167673a25462100772b72a5d62fd66dff01b53018618Hannes Reineckevoid 167773a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_done(struct ahd_softc *ahd, struct scb *scb) 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 167973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 168073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 168273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_ACTIVE) == 0) { 168373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("SCB %d done'd twice\n", SCB_GET_TAG(scb)); 168473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_dump_card_state(ahd); 168573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke panic("Stopping for safety"); 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 168773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_REMOVE(scb, pending_links); 168873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd = scb->io_ctx; 168973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scb->platform_data->dev; 169073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active--; 169173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings++; 169273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) { 169373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->result &= ~(CAM_DEV_QFRZN << 16); 169473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->qfrozen--; 169573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 169673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_unmap_scb(ahd, scb); 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 169973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Guard against stale sense data. 170073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * The Linux mid-layer assumes that sense 170173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * was retrieved anytime the first byte of 170273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the sense buffer looks "sane". 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 170473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->sense_buffer[0] = 0; 170573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_get_transaction_status(scb) == CAM_REQ_INPROG) { 170673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint32_t amount_xferred; 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 170873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke amount_xferred = 170973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_transfer_length(scb) - ahd_get_residual(scb); 171073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_TRANSMISSION_ERROR) != 0) { 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 171273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_MISC) != 0) { 171373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 171473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Set CAM_UNCOR_PARITY\n"); 171573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 171773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_UNCOR_PARITY); 171873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#ifdef AHD_REPORT_UNDERFLOWS 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 172073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * This code is disabled by default as some 172173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * clients of the SCSI system do not properly 172273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * initialize the underflow parameter. This 172373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * results in spurious termination of commands 172473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * that complete as expected (e.g. underflow is 172573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * allowed as command can return variable amounts 172673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * of data. 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 172873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (amount_xferred < scb->io_ctx->underflow) { 172973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int i; 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 173173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 173273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("CDB:"); 173373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < scb->io_ctx->cmd_len; i++) 173473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf(" 0x%x", scb->io_ctx->cmnd[i]); 173573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("\n"); 173673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 173773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Saw underflow (%ld of %ld bytes). " 173873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke "Treated as error\n", 173973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_residual(scb), 174073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_transfer_length(scb)); 174173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_DATA_RUN_ERR); 174273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke#endif 174373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 174473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_REQ_CMP); 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 174673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (ahd_get_transaction_status(scb) == CAM_SCSI_STATUS_ERROR) { 174773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_handle_scsi_status(ahd, cmd->device, scb); 174873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 175073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->openings == 1 175173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_get_transaction_status(scb) == CAM_REQ_CMP 175273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_get_scsi_status(scb) != SCSI_STATUS_QUEUE_FULL) 175373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count++; 175473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 175573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Some devices deal with temporary internal resource 175673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * shortages by returning queue full. When the queue 175773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * full occurrs, we throttle back. Slowly try to get 175873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * back to our previous queue depth. 175973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 176073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((dev->openings + dev->active) < dev->maxtags 176173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && dev->tag_success_count > AHD_TAG_SUCCESS_INTERVAL) { 176273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count = 0; 176373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings++; 176473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 176673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active == 0) 176773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->commands_since_idle_or_otag = 0; 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 176973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 177073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Recovery SCB completes\n"); 177173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_get_transaction_status(scb) == CAM_BDR_SENT 177273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || ahd_get_transaction_status(scb) == CAM_REQ_ABORTED) 177373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT); 177473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->platform_data->flags & AHD_SCB_UP_EH_SEM) != 0) { 177573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->flags &= ~AHD_SCB_UP_EH_SEM; 177673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke up(&ahd->platform_data->eh_sem); 177773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 177973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 178073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_free_scb(ahd, scb); 178173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_queue_cmd_complete(ahd, cmd); 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 178573a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_handle_scsi_status(struct ahd_softc *ahd, 178673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_device *sdev, struct scb *scb) 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 178873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 178973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev = scsi_transport_device_data(sdev); 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 179173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, 179273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->our_id, 179373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->id, sdev->lun, 179473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sdev->sdev_target->channel == 0 ? 'A' : 'B', 179573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR); 179673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 179773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 179873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We don't currently trust the mid-layer to 179973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * properly deal with queue full or busy. So, 180073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * when one occurs, we tell the mid-layer to 180173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * unconditionally requeue the command to us 180273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so that we can retry it ourselves. We also 180373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * implement our own throttling mechanism so 180473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * we don't clobber the device with too many 180573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * commands. 180673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 180773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (ahd_get_scsi_status(scb)) { 180873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 180973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 181073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_CHECK_COND: 181173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_CMD_TERMINATED: 181273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 181373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_cmnd *cmd; 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 181673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Copy sense information to the OS's cmd 181773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * structure if it is available. 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 181973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd = scb->io_ctx; 182073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((scb->flags & (SCB_SENSE|SCB_PKT_SENSE)) != 0) { 182173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scsi_status_iu_header *siu; 182273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int sense_size; 182373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int sense_offset; 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 182573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (scb->flags & SCB_SENSE) { 182673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_size = MIN(sizeof(struct scsi_sense_data) 182773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke - ahd_get_sense_residual(scb), 182873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(cmd->sense_buffer)); 182973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_offset = 0; 183073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 183173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 183273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Copy only the sense data into the provided 183373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * buffer. 183473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 183573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke siu = (struct scsi_status_iu_header *) 183673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scb->sense_data; 183773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_size = MIN(scsi_4btoul(siu->sense_length), 183873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(cmd->sense_buffer)); 183973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_offset = SIU_SENSE_OFFSET(siu); 184073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 184273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer)); 184373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke memcpy(cmd->sense_buffer, 184473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_get_sense_buf(ahd, scb) 184573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke + sense_offset, sense_size); 184673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->result |= (DRIVER_SENSE << 24); 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 184973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_debug & AHD_SHOW_SENSE) { 185073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int i; 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 185273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Copied %d bytes of sense data at %d:", 185373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sense_size, sense_offset); 185473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (i = 0; i < sense_size; i++) { 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i & 0xF) == 0) 185673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("\n"); 185773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("0x%x ", cmd->sense_buffer[i]); 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printf("\n"); 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 186473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 186573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case SCSI_STATUS_QUEUE_FULL: 186673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 186773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * By the time the core driver has returned this 186873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * command, all other commands that were queued 186973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to us but not the device have been returned. 187073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * This ensures that dev->active is equal to 187173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the number of commands actually queued to 187273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the device. 187373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 187473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tag_success_count = 0; 187573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active != 0) { 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 187773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Drop our opening count to the number 187873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * of commands currently outstanding. 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 188073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 0; 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef AHD_DEBUG 188273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd_debug & AHD_SHOW_QFULL) != 0) { 188373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 188473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Dropping tag count to %d\n", 188573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active); 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 188873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->active == dev->tags_on_last_queuefull) { 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 189073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->last_queuefull_same_count++; 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 189273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * If we repeatedly see a queue full 189373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * at the same queue depth, this 189473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * device has a fixed number of tag 189573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * slots. Lock in this tag depth 189673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we stop seeing queue fulls from 189773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * this device. 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 189973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev->last_queuefull_same_count 190073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke == AHD_LOCK_TAGS_COUNT) { 190173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->maxtags = dev->active; 190273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, scb); 190373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Locking max tag count at %d\n", 190473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->active); 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 190673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 190773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->tags_on_last_queuefull = dev->active; 190873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->last_queuefull_same_count = 0; 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 191073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_transaction_status(scb, CAM_REQUEUE_REQ); 191173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scsi_status(scb, SCSI_STATUS_OK); 191273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_platform_set_tags(ahd, &devinfo, 191373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (dev->flags & AHD_DEV_Q_BASIC) 191473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED); 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 191873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Drop down to a single opening, and treat this 191973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * as if the target returned BUSY SCSI status. 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 192173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev->openings = 1; 192273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_platform_set_tags(ahd, &devinfo, 192373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke (dev->flags & AHD_DEV_Q_BASIC) 192473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED); 192573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scsi_status(scb, SCSI_STATUS_BUSY); 192673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 192973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void 193073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd) 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 193373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Map CAM error codes into Linux Error codes. We 193473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * avoid the conversion so that the DV code has the 193573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * full error information available when making 193673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * state change decisions. 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 193873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke { 193973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke uint32_t status; 194073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int new_status; 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 194273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke status = ahd_cmd_get_transaction_status(cmd); 194373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke switch (status) { 194473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_INPROG: 194573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_CMP: 194673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_SCSI_STATUS_ERROR: 194773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_OK; 194873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 194973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_ABORTED: 195073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_ABORT; 195173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 195273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_BUSY: 195373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_BUS_BUSY; 195473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 195573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_INVALID: 195673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_PATH_INVALID: 195773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_BAD_TARGET; 195873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 195973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_SEL_TIMEOUT: 196073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_NO_CONNECT; 196173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 196273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_SCSI_BUS_RESET: 196373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_BDR_SENT: 196473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_RESET; 196573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 196673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_UNCOR_PARITY: 196773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_PARITY; 196873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 196973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_CMD_TIMEOUT: 197073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_TIME_OUT; 197173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 197273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_UA_ABORT: 197373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_CMP_ERR: 197473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_AUTOSENSE_FAIL: 197573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_NO_HBA: 197673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_DATA_RUN_ERR: 197773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_UNEXP_BUSFREE: 197873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_SEQUENCE_FAIL: 197973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_CCB_LEN_ERR: 198073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_PROVIDE_FAIL: 198173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_TERMIO: 198273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_UNREC_HBA_ERROR: 198373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQ_TOO_BIG: 198473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_ERROR; 198573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 198673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke case CAM_REQUEUE_REQ: 198773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_REQUEUE; 198873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 198973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke default: 199073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* We should never get here */ 199173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke new_status = DID_ERROR; 199273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 199373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 199473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 199573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_cmd_set_transaction_status(cmd, new_status); 199673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 199773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 199873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->scsi_done(cmd); 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 200273a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_sem_timeout(u_long arg) 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 200473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 200573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long s; 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 200773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = (struct ahd_softc *)arg; 200873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 200973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &s); 201073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((ahd->platform_data->flags & AHD_SCB_UP_EH_SEM) != 0) { 201173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->flags &= ~AHD_SCB_UP_EH_SEM; 201273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke up(&ahd->platform_data->eh_sem); 201373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 201473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &s); 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 201873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_freeze_simq(struct ahd_softc *ahd) 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 202073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->qfrozen++; 202173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->qfrozen == 1) { 202273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_block_requests(ahd->platform_data->host); 202373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_platform_abort_scbs(ahd, CAM_TARGET_WILDCARD, ALL_CHANNELS, 202473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, SCB_LIST_NULL, 202573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR, CAM_REQUEUE_REQ); 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 203073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_release_simq(struct ahd_softc *ahd) 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 203273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_long s; 203373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int unblock_reqs; 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 203573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unblock_reqs = 0; 203673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &s); 203773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->qfrozen > 0) 203873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->qfrozen--; 203973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd->platform_data->qfrozen == 0) { 204073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unblock_reqs = 1; 20411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 204273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &s); 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 204473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * There is still a race here. The mid-layer 204573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * should keep its own freeze count and use 204673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * a bottom half handler to run the queues 204773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we can unblock with our own lock held. 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 204973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (unblock_reqs) 205073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_unblock_requests(ahd->platform_data->host); 205173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 205373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic int 205473a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) 205573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 205673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd; 205773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_linux_device *dev; 205873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *pending_scb; 205973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int saved_scbptr; 206073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int active_scbptr; 206173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int last_phase; 206273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int saved_scsiid; 206373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke u_int cdb_byte; 206473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int retval; 206573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int was_paused; 206673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int paused; 206773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int wait; 206873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int disconnected; 206973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_mode_state saved_modes; 207073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 207173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb = NULL; 207273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke paused = FALSE; 207373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = FALSE; 207473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd = *(struct ahd_softc **)cmd->device->host->hostdata; 207573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 207673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s:%d:%d:%d: Attempting to queue a%s message:", 207773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd->device->channel, 207873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->id, cmd->device->lun, 207973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke flag == SCB_ABORT ? "n ABORT" : " TARGET RESET"); 208073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 208173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("CDB:"); 208273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++) 208373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf(" 0x%x", cmd->cmnd[cdb_byte]); 208473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("\n"); 208573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 208673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spin_lock_irq(&ahd->platform_data->spin_lock); 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 208973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * First determine if we currently own this command. 209073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Start by searching the device queue. If not found 209173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * there, check the pending_scb list. If not found 209273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * at all, and the system wanted us to just abort the 209373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * command, return success. 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 209573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dev = scsi_transport_device_data(cmd->device); 209673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 209773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dev == NULL) { 209873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 209973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * No target device for this command exists, 210073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we must not still own the command. 210173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 210273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s:%d:%d:%d: Is not an active device\n", 210373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd->device->channel, cmd->device->id, 210473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun); 210573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = SUCCESS; 210673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 210773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 21081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 211073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * See if we can find a matching cmd in the pending list. 21111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 211273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) { 211373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (pending_scb->io_ctx == cmd) 211473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 211773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (pending_scb == NULL && flag == SCB_DEVICE_RESET) { 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 211973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* Any SCB for this device will do for a target reset */ 212073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) { 212173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_match_scb(ahd, pending_scb, cmd->device->id, 212273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->channel + 'A', 212373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_LUN_WILDCARD, 212473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_LIST_NULL, ROLE_INITIATOR) == 0) 212573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke break; 21261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 212973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (pending_scb == NULL) { 213073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s:%d:%d:%d: Command not found\n", 213173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd->device->channel, cmd->device->id, 213273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun); 213373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 213673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_RECOVERY_SCB) != 0) { 213773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 213873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We can't queue two recovery actions using the same SCB 213973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 214073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 214173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto done; 214273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 214573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Ensure that the card doesn't do anything 214673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * behind our back. Also make sure that we 214773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * didn't "just" miss an interrupt that would 214873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * affect this cmd. 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 215073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke was_paused = ahd_is_paused(ahd); 215173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_pause_and_flushwork(ahd); 215273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke paused = TRUE; 21531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 215473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_ACTIVE) == 0) { 215573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s:%d:%d:%d: Command already completed\n", 215673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd->device->channel, cmd->device->id, 215773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun); 215873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto no_cmd; 215973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 21601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 216173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s: At time of recovery, card was %spaused\n", 216273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), was_paused ? "" : "not "); 216373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_dump_card_state(ahd); 21641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 216573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = TRUE; 216673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (flag == SCB_ABORT) { 216773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_search_qinfifo(ahd, cmd->device->id, 216873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->channel + 'A', 216973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun, 217073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->tag, 217173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR, CAM_REQ_ABORTED, 217273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SEARCH_COMPLETE) > 0) { 217373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s:%d:%d:%d: Cmd aborted from QINFIFO\n", 217473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd->device->channel, 217573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->id, cmd->device->lun); 217673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = SUCCESS; 217773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto done; 217873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 217973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (ahd_search_qinfifo(ahd, cmd->device->id, 218073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->channel + 'A', 218173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->lun, pending_scb->hscb->tag, 218273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ROLE_INITIATOR, /*status*/0, 218373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SEARCH_COUNT) > 0) { 218473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = FALSE; 218573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 218773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_modes = ahd_save_modes(ahd); 218873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); 218973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke last_phase = ahd_inb(ahd, LASTPHASE); 219073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_scbptr = ahd_get_scbptr(ahd); 219173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke active_scbptr = saved_scbptr; 219273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (disconnected && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) { 219373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct scb *bus_scb; 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 219573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke bus_scb = ahd_lookup_scb(ahd, active_scbptr); 219673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (bus_scb == pending_scb) 219773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = FALSE; 219873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke else if (flag != SCB_ABORT 219973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_inb(ahd, SAVED_SCSIID) == pending_scb->hscb->scsiid 220073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && ahd_inb(ahd, SAVED_LUN) == SCB_GET_LUN(pending_scb)) 220173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke disconnected = FALSE; 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 220373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 220473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 220573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * At this point, pending_scb is the scb associated with the 220673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * passed in command. That command is currently active on the 220773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * bus or is in the disconnected state. 220873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 220973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke saved_scsiid = ahd_inb(ahd, SAVED_SCSIID); 221073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (last_phase != P_BUSFREE 221173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && (SCB_GET_TAG(pending_scb) == active_scbptr 221273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke || (flag == SCB_DEVICE_RESET 221373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke && SCSIID_TARGET(ahd, saved_scsiid) == cmd->device->id))) { 221473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 22151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 221673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We're active on the bus, so assert ATN 221773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * and hope that the target responds. 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 221973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb = ahd_lookup_scb(ahd, active_scbptr); 222073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->flags |= SCB_RECOVERY_SCB|flag; 222173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, MSG_OUT, HOST_MSG); 222273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCSISIGO, last_phase|ATNO); 222373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s:%d:%d:%d: Device is active, asserting ATN\n", 222473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd->device->channel, 222573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->id, cmd->device->lun); 222673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = TRUE; 222773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else if (disconnected) { 222873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 222973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 223073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Actually re-queue this SCB in an attempt 223173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to select the device before it reconnects. 223273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 223373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT; 223473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scbptr(ahd, SCB_GET_TAG(pending_scb)); 223573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->cdb_len = 0; 223673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_attribute = 0; 223773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_management = SIU_TASKMGMT_ABORT_TASK; 223873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 223973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if ((pending_scb->flags & SCB_PACKETIZED) != 0) { 22401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 224173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Mark the SCB has having an outstanding 224273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * task management function. Should the command 224373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * complete normally before the task management 224473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * function can be sent, the host will be notified 224573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to abort our requeued SCB. 22461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 224773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCB_TASK_MANAGEMENT, 224873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->task_management); 224973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 225073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 225173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * If non-packetized, set the MK_MESSAGE control 225273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * bit indicating that we desire to send a message. 225373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * We also set the disconnected flag since there is 225473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * no guarantee that our SCB control byte matches 225573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the version on the card. We don't want the 225673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * sequencer to abort the command thinking an 225773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * unsolicited reselection occurred. 225873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 225973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke pending_scb->hscb->control |= MK_MESSAGE|DISCONNECTED; 226073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 226173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* 226273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * The sequencer will never re-reference the 226373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * in-core SCB. To make sure we are notified 226473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * during reslection, set the MK_MESSAGE flag in 226573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the card's copy of the SCB. 226673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke */ 226773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_outb(ahd, SCB_CONTROL, 226873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_inb(ahd, SCB_CONTROL)|MK_MESSAGE); 22691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 227073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 22711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 227273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Clear out any entries in the QINFIFO first 227373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * so we are the next SCB for this target 227473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * to run. 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 227673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_search_qinfifo(ahd, cmd->device->id, 227773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->channel + 'A', cmd->device->lun, 227873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke SCB_LIST_NULL, ROLE_INITIATOR, 227973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke CAM_REQUEUE_REQ, SEARCH_COMPLETE); 228073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_qinfifo_requeue_tail(ahd, pending_scb); 228173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_scbptr(ahd, saved_scbptr); 228273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_print_path(ahd, pending_scb); 228373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Device is disconnected, re-queuing SCB\n"); 228473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke wait = TRUE; 228573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke } else { 228673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("%s:%d:%d:%d: Unable to deliver message\n", 228773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_name(ahd), cmd->device->channel, 228873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke cmd->device->id, cmd->device->lun); 228973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 229073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke goto done; 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 229373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckeno_cmd: 22941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 229573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * Our assumption is that if we don't have the command, no 229673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * recovery action was required, so we return success. Again, 229773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * the semantics of the mid-layer recovery engine are not 229873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke * well defined, so this may change in time. 22991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 230073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = SUCCESS; 230173a25462100772b72a5d62fd66dff01b53018618Hannes Reineckedone: 230273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (paused) 230373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unpause(ahd); 230473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (wait) { 230573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct timer_list timer; 230673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke int ret; 23071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 230873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd->platform_data->flags |= AHD_SCB_UP_EH_SEM; 230973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spin_unlock_irq(&ahd->platform_data->spin_lock); 231073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke init_timer(&timer); 231173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke timer.data = (u_long)ahd; 231273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke timer.expires = jiffies + (5 * HZ); 231373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke timer.function = ahd_linux_sem_timeout; 231473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke add_timer(&timer); 231573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Recovery code sleeping\n"); 231673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke down(&ahd->platform_data->eh_sem); 231773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Recovery code awake\n"); 231873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ret = del_timer_sync(&timer); 231973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ret == 0) { 232073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke printf("Timer Expired\n"); 232173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke retval = FAILED; 23221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 232373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spin_lock_irq(&ahd->platform_data->spin_lock); 23241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 232573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spin_unlock_irq(&ahd->platform_data->spin_lock); 232673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return (retval); 23271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 232973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_width(struct scsi_target *starget, int width) 23301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 233173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 233273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 233373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 233473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 23351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 233673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 233773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 233873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 233973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE); 234073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 234173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 234273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 234373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_period(struct scsi_target *starget, int period) 234473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 234573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 234673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 234773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 234873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 234973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 235073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 235173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 235273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 235373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options; 2354a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 235573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 235673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long offset = tinfo->goal.offset; 23571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2358a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2359a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2360a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: set period to %d\n", ahd_name(ahd), period); 2361a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 236273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (offset == 0) 236373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke offset = MAX_OFFSET; 23641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 236573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period < 8) 236673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke period = 8; 236773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period < 10) { 236873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; 236973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (period == 8) 237073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_IU_REQ; 23711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2373a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2374a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 237573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 237673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 23771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 237873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke /* all PPR requests apart from QAS require wide transfers */ 237973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ppr_options & ~MSG_EXT_PPR_QAS_REQ) { 238073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (spi_width(starget) == 0) 238173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options &= MSG_EXT_PPR_QAS_REQ; 23821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 238373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2384a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2385a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2386a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 238773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 238873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, offset, 238973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 239073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 23911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 239373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_offset(struct scsi_target *starget, int offset) 23941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 239573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 239673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 239773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 239873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 239973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 240073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 240173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 240273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 240373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = 0; 240473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = 0; 2405a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 240673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 240773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2408a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2409a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2410a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: set offset to %d\n", ahd_name(ahd), offset); 2411a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2412a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 241373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 241473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 241573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (offset != 0) { 241673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke period = tinfo->goal.period; 241773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options = tinfo->goal.ppr_options; 2418a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2419a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 24201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2421a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 242273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 242373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options, 242473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke AHD_TRANS_GOAL, FALSE); 242573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 24261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 242873a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_dt(struct scsi_target *starget, int dt) 24291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 243073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 243173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 243273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 243373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 243473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 243573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 243673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 243773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 243873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 243973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_DT_REQ; 244073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 244152b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke unsigned int width = tinfo->goal.width; 244273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 244373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2444a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2445a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2446a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s DT\n", ahd_name(ahd), 2447a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? "enabling" : "disabling"); 2448a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 244973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (dt) { 245073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; 245152b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke if (!width) 245252b5cfb355b2b3274979d25490f190d478ab1fadHannes Reinecke ahd_linux_set_width(starget, 1); 2453a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } else { 2454a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (period <= 9) 2455a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke period = 10; /* If resetting DT, period must be >= 25ns */ 2456a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke /* IU is invalid without DT set */ 2457a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2458a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 245973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 246073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 246173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 246273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2463a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 246473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 246573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 246673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 246773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 24681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 247073a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_qas(struct scsi_target *starget, int qas) 24711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 247273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 247373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 247473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 247573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 247673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 247773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 247873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 247973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 248073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 248173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_QAS_REQ; 248273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 2483a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 248473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 248573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2486a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2487a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2488a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s QAS\n", ahd_name(ahd), 2489a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke qas ? "enabling" : "disabling"); 2490a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2491a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2492a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (qas) { 2493a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_QAS_REQ; 2494a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2495a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2496a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 249773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 249873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 249973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 250073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 250173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2502a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 250373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 250473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 250573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 250673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 25071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 250973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_iu(struct scsi_target *starget, int iu) 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 251173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 251273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 251373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 251473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 251573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 251673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 251773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 251873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 251973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 252073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_IU_REQ; 252173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 2522a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt; 252373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 252473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2525a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2526a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2527a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s IU\n", ahd_name(ahd), 2528a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke iu ? "enabling" : "disabling"); 2529a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2530a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2531a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (iu) { 253273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_IU_REQ; 2533a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */ 2534a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2535a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2536a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt = ppr_options & MSG_EXT_PPR_DT_REQ; 253773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 253873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 253973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 254073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 254173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2542a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 254373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 254473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 254573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 254673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 254773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke} 25481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 254973a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm) 255073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke{ 255173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 255273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 255373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_tmode_tstate *tstate; 255473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_initiator_tinfo *tinfo 255573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke = ahd_fetch_transinfo(ahd, 255673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', 255773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke shost->this_id, starget->id, &tstate); 255873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke struct ahd_devinfo devinfo; 255973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 256073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke & ~MSG_EXT_PPR_RD_STRM; 256173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int period = tinfo->goal.period; 256273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 256373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke unsigned long flags; 256473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 2565a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2566a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2567a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s Read Streaming\n", ahd_name(ahd), 2568a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke rdstrm ? "enabling" : "disabling"); 2569a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2570a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 257173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (rdstrm) 257273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options |= MSG_EXT_PPR_RD_STRM; 257373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 257473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 257573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 257673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 257773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2578a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2579a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2580a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2581a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2582a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2583a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2584a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2585a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_wr_flow(struct scsi_target *starget, int wrflow) 2586a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2587a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2588a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2589a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2590a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2591a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2592a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2593a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2594a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2595a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2596a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_WR_FLOW; 2597a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2598a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2599a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2600a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2601a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2602a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2603a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s Write Flow Control\n", ahd_name(ahd), 2604a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke wrflow ? "enabling" : "disabling"); 2605a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2606a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2607a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (wrflow) 2608a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_WR_FLOW; 2609a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2610a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2611a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2612a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2613a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2614a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2615a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2616a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2617a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2618a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2619a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2620a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2621a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_rti(struct scsi_target *starget, int rti) 2622a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2623a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2624a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2625a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2626a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2627a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2628a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2629a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2630a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2631a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2632a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_RTI; 2633a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2634a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2635a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2636a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2637a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd->features & AHD_RTI) == 0) { 2638a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2639a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2640a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: RTI not available\n", ahd_name(ahd)); 2641a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2642a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke return; 2643a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke } 2644a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2645a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2646a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2647a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s RTI\n", ahd_name(ahd), 2648a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke rti ? "enabling" : "disabling"); 2649a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2650a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2651a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (rti) 2652a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_RTI; 2653a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2654a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2655a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2656a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2657a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2658a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2659a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_lock(ahd, &flags); 2660a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 2661a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 2662a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_unlock(ahd, &flags); 2663a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke} 2664a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2665a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reineckestatic void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp) 2666a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke{ 2667a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 2668a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 2669a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_tmode_tstate *tstate; 2670a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_initiator_tinfo *tinfo 2671a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke = ahd_fetch_transinfo(ahd, 2672a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', 2673a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke shost->this_id, starget->id, &tstate); 2674a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke struct ahd_devinfo devinfo; 2675a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int ppr_options = tinfo->goal.ppr_options 2676a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke & ~MSG_EXT_PPR_PCOMP_EN; 2677a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int period = tinfo->goal.period; 2678a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 2679a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke unsigned long flags; 2680a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2681a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#ifdef AHD_DEBUG 2682a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if ((ahd_debug & AHD_SHOW_DV) != 0) 2683a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke printf("%s: %s Precompensation\n", ahd_name(ahd), 2684a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke pcomp ? "Enable" : "Disable"); 2685a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke#endif 2686a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2687a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke if (pcomp) 2688a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ppr_options |= MSG_EXT_PPR_PCOMP_EN; 2689a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 2690a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 2691a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke starget->channel + 'A', ROLE_INITIATOR); 2692a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke ahd_find_syncrate(ahd, &period, &ppr_options, 2693a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 2694a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke 269573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_lock(ahd, &flags); 269673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 269773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ppr_options, AHD_TRANS_GOAL, FALSE); 269873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_unlock(ahd, &flags); 26991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 270188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomleystatic void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold) 270288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley{ 270388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 270488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata); 270588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_tmode_tstate *tstate; 270688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_initiator_tinfo *tinfo 270788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley = ahd_fetch_transinfo(ahd, 270888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley starget->channel + 'A', 270988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley shost->this_id, starget->id, &tstate); 271088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley struct ahd_devinfo devinfo; 271188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int ppr_options = tinfo->goal.ppr_options 271288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley & ~MSG_EXT_PPR_HOLD_MCS; 271388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int period = tinfo->goal.period; 271488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; 271588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley unsigned long flags; 271688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 271788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley if (hold) 271888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ppr_options |= MSG_EXT_PPR_HOLD_MCS; 271988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 272088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, 272188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley starget->channel + 'A', ROLE_INITIATOR); 272288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_find_syncrate(ahd, &period, &ppr_options, 272388ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2); 272488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 272588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_lock(ahd, &flags); 272688ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset, 272788ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ppr_options, AHD_TRANS_GOAL, FALSE); 272888ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley ahd_unlock(ahd, &flags); 272988ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley} 273088ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 273188ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 273288ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley 273373a25462100772b72a5d62fd66dff01b53018618Hannes Reineckestatic struct spi_function_template ahd_linux_transport_functions = { 273473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_offset = ahd_linux_set_offset, 273573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_offset = 1, 273673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_period = ahd_linux_set_period, 273773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_period = 1, 273873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_width = ahd_linux_set_width, 273973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_width = 1, 274073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_dt = ahd_linux_set_dt, 274173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_dt = 1, 274273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_iu = ahd_linux_set_iu, 274373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_iu = 1, 274473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_qas = ahd_linux_set_qas, 274573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_qas = 1, 274673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .set_rd_strm = ahd_linux_set_rd_strm, 274773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke .show_rd_strm = 1, 2748a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_wr_flow = ahd_linux_set_wr_flow, 2749a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_wr_flow = 1, 2750a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_rti = ahd_linux_set_rti, 2751a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_rti = 1, 2752a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .set_pcomp_en = ahd_linux_set_pcomp_en, 2753a4b53a11806f5c0824eb4115b1de8206ed7bb89aHannes Reinecke .show_pcomp_en = 1, 275488ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley .set_hold_mcs = ahd_linux_set_hold_mcs, 275588ff29a4a5a8c4e0ecf375f783be071d1e7e264dJames Bottomley .show_hold_mcs = 1, 275673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke}; 275773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 275873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 275973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke 27601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init 27611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_init(void) 27621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 276373a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke ahd_linux_transport_template = spi_attach_transport(&ahd_linux_transport_functions); 276473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (!ahd_linux_transport_template) 276573a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return -ENODEV; 276673a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_transport_reserve_target(ahd_linux_transport_template, 276773a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(struct ahd_linux_target)); 276873a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke scsi_transport_reserve_device(ahd_linux_transport_template, 276973a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke sizeof(struct ahd_linux_device)); 277073a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke if (ahd_linux_detect(&aic79xx_driver_template) > 0) 277173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return 0; 277273a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_release_transport(ahd_linux_transport_template); 2773a80b3424d9fde3c4b6d62adaf6dda78128dc5c27James Bottomley 277473a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke return -ENODEV; 27751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit 27781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsahd_linux_exit(void) 27791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 27801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ahd_linux_pci_exit(); 278173a25462100772b72a5d62fd66dff01b53018618Hannes Reinecke spi_release_transport(ahd_linux_transport_template); 27821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ahd_linux_init); 27851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(ahd_linux_exit); 2786