^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2) * Adaptec AIC79xx device driver for Linux.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 3) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 4) * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.c#171 $
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 5) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 6) * --------------------------------------------------------------------------
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 7) * Copyright (c) 1994-2000 Justin T. Gibbs.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 8) * Copyright (c) 1997-1999 Doug Ledford
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 9) * Copyright (c) 2000-2003 Adaptec Inc.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 10) * All rights reserved.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 11) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 12) * Redistribution and use in source and binary forms, with or without
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 13) * modification, are permitted provided that the following conditions
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 14) * are met:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 15) * 1. Redistributions of source code must retain the above copyright
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 16) * notice, this list of conditions, and the following disclaimer,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 17) * without modification.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 18) * 2. Redistributions in binary form must reproduce at minimum a disclaimer
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 19) * substantially similar to the "NO WARRANTY" disclaimer below
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 20) * ("Disclaimer") and any redistribution must be conditioned upon
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 21) * including a substantially similar Disclaimer requirement for further
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 22) * binary redistribution.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 23) * 3. Neither the names of the above-listed copyright holders nor the names
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 24) * of any contributors may be used to endorse or promote products derived
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 25) * from this software without specific prior written permission.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 26) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 27) * Alternatively, this software may be distributed under the terms of the
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 28) * GNU General Public License ("GPL") version 2 as published by the Free
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 29) * Software Foundation.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 30) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 31) * NO WARRANTY
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 32) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 33) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 34) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 35) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 36) * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 37) * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 38) * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 39) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 40) * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 41) * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 42) * POSSIBILITY OF SUCH DAMAGES.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 43) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 44)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 45) #include "aic79xx_osm.h"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 46) #include "aic79xx_inline.h"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 47) #include <scsi/scsicam.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 48)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 49) static struct scsi_transport_template *ahd_linux_transport_template = NULL;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 50)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 51) #include <linux/init.h> /* __setup */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 52) #include <linux/mm.h> /* For fetching system memory size */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 53) #include <linux/blkdev.h> /* For block_size() */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 54) #include <linux/delay.h> /* For ssleep/msleep */
017560fca496f (Jeff Garzik 2005-10-24 18:04:36 -0400 55) #include <linux/device.h>
5a0e3ad6af866 (Tejun Heo 2010-03-24 17:04:11 +0900 56) #include <linux/slab.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 57)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 58) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 59) * Bucket size for counting good commands in between bad ones.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 60) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 61) #define AHD_LINUX_ERR_THRESH 1000
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 62)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 63) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 64) * Set this to the delay in seconds after SCSI bus reset.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 65) * Note, we honor this only for the initial bus reset.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 66) * The scsi error recovery code performs its own bus settle
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 67) * delay handling for error recovery actions.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 68) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 69) #ifdef CONFIG_AIC79XX_RESET_DELAY_MS
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 70) #define AIC79XX_RESET_DELAY CONFIG_AIC79XX_RESET_DELAY_MS
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 71) #else
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 72) #define AIC79XX_RESET_DELAY 5000
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 73) #endif
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 74)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 75) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 76) * To change the default number of tagged transactions allowed per-device,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 77) * add a line to the lilo.conf file like:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 78) * append="aic79xx=verbose,tag_info:{{32,32,32,32},{32,32,32,32}}"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 79) * which will result in the first four devices on the first two
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 80) * controllers being set to a tagged queue depth of 32.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 81) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 82) * The tag_commands is an array of 16 to allow for wide and twin adapters.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 83) * Twin adapters will use indexes 0-7 for channel 0, and indexes 8-15
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 84) * for channel 1.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 85) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 86) typedef struct {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 87) uint16_t tag_commands[16]; /* Allow for wide/twin adapters. */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 88) } adapter_tag_info_t;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 89)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 90) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 91) * Modify this as you see fit for your system.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 92) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 93) * 0 tagged queuing disabled
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 94) * 1 <= n <= 253 n == max tags ever dispatched.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 95) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 96) * The driver will throttle the number of commands dispatched to a
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 97) * device if it returns queue full. For devices with a fixed maximum
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 98) * queue depth, the driver will eventually determine this depth and
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 99) * lock it in (a console message is printed to indicate that a lock
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 100) * has occurred). On some devices, queue full is returned for a temporary
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 101) * resource shortage. These devices will return queue full at varying
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 102) * depths. The driver will throttle back when the queue fulls occur and
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 103) * attempt to slowly increase the depth over time as the device recovers
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 104) * from the resource shortage.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 105) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 106) * In this example, the first line will disable tagged queueing for all
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 107) * the devices on the first probed aic79xx adapter.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 108) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 109) * The second line enables tagged queueing with 4 commands/LUN for IDs
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 110) * (0, 2-11, 13-15), disables tagged queueing for ID 12, and tells the
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 111) * driver to attempt to use up to 64 tags for ID 1.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 112) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 113) * The third line is the same as the first line.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 114) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 115) * The fourth line disables tagged queueing for devices 0 and 3. It
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 116) * enables tagged queueing for the other IDs, with 16 commands/LUN
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 117) * for IDs 1 and 4, 127 commands/LUN for ID 8, and 4 commands/LUN for
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 118) * IDs 2, 5-7, and 9-15.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 119) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 120)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 121) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 122) * NOTE: The below structure is for reference only, the actual structure
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 123) * to modify in order to change things is just below this comment block.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 124) adapter_tag_info_t aic79xx_tag_info[] =
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 125) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 126) {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 127) {{4, 64, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 4, 4, 4}},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 128) {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 129) {{0, 16, 4, 0, 16, 4, 4, 4, 127, 4, 4, 4, 4, 4, 4, 4}}
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 130) };
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 131) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 132)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 133) #ifdef CONFIG_AIC79XX_CMDS_PER_DEVICE
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 134) #define AIC79XX_CMDS_PER_DEVICE CONFIG_AIC79XX_CMDS_PER_DEVICE
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 135) #else
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 136) #define AIC79XX_CMDS_PER_DEVICE AHD_MAX_QUEUE
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 137) #endif
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 138)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 139) #define AIC79XX_CONFIGED_TAG_COMMANDS { \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 140) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 141) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 142) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 143) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 144) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 145) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 146) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 147) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 148) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 149)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 150) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 151) * By default, use the number of commands specified by
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 152) * the users kernel configuration.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 153) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 154) static adapter_tag_info_t aic79xx_tag_info[] =
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 155) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 156) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 157) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 158) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 159) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 160) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 161) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 162) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 163) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 164) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 165) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 166) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 167) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 168) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 169) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 170) {AIC79XX_CONFIGED_TAG_COMMANDS},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 171) {AIC79XX_CONFIGED_TAG_COMMANDS}
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 172) };
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 173)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 174) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 175) * The I/O cell on the chip is very configurable in respect to its analog
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 176) * characteristics. Set the defaults here; they can be overriden with
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 177) * the proper insmod parameters.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 178) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 179) struct ahd_linux_iocell_opts
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 180) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 181) uint8_t precomp;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 182) uint8_t slewrate;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 183) uint8_t amplitude;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 184) };
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 185) #define AIC79XX_DEFAULT_PRECOMP 0xFF
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 186) #define AIC79XX_DEFAULT_SLEWRATE 0xFF
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 187) #define AIC79XX_DEFAULT_AMPLITUDE 0xFF
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 188) #define AIC79XX_DEFAULT_IOOPTS \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 189) { \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 190) AIC79XX_DEFAULT_PRECOMP, \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 191) AIC79XX_DEFAULT_SLEWRATE, \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 192) AIC79XX_DEFAULT_AMPLITUDE \
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 193) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 194) #define AIC79XX_PRECOMP_INDEX 0
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 195) #define AIC79XX_SLEWRATE_INDEX 1
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 196) #define AIC79XX_AMPLITUDE_INDEX 2
980b306a29772 (Denys Vlasenko 2008-04-25 04:36:01 +0200 197) static const struct ahd_linux_iocell_opts aic79xx_iocell_info[] =
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 198) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 199) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 200) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 201) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 202) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 203) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 204) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 205) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 206) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 207) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 208) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 209) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 210) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 211) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 212) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 213) AIC79XX_DEFAULT_IOOPTS,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 214) AIC79XX_DEFAULT_IOOPTS
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 215) };
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 216)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 217) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 218) * There should be a specific return value for this in scsi.h, but
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 219) * it seems that most drivers ignore it.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 220) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 221) #define DID_UNDERFLOW DID_ERROR
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 222)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 223) void
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 224) ahd_print_path(struct ahd_softc *ahd, struct scb *scb)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 225) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 226) printk("(scsi%d:%c:%d:%d): ",
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 227) ahd->platform_data->host->host_no,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 228) scb != NULL ? SCB_GET_CHANNEL(ahd, scb) : 'X',
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 229) scb != NULL ? SCB_GET_TARGET(ahd, scb) : -1,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 230) scb != NULL ? SCB_GET_LUN(scb) : -1);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 231) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 232)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 233) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 234) * XXX - these options apply unilaterally to _all_ adapters
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 235) * cards in the system. This should be fixed. Exceptions to this
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 236) * rule are noted in the comments.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 237) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 238)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 239) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 240) * Skip the scsi bus reset. Non 0 make us skip the reset at startup. This
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 241) * has no effect on any later resets that might occur due to things like
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 242) * SCSI bus timeouts.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 243) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 244) static uint32_t aic79xx_no_reset;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 245)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 246) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 247) * Should we force EXTENDED translation on a controller.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 248) * 0 == Use whatever is in the SEEPROM or default to off
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 249) * 1 == Use whatever is in the SEEPROM or default to on
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 250) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 251) static uint32_t aic79xx_extended;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 252)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 253) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 254) * PCI bus parity checking of the Adaptec controllers. This is somewhat
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 255) * dubious at best. To my knowledge, this option has never actually
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 256) * solved a PCI parity problem, but on certain machines with broken PCI
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 257) * chipset configurations, it can generate tons of false error messages.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 258) * It's included in the driver for completeness.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 259) * 0 = Shut off PCI parity check
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 260) * non-0 = Enable PCI parity check
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 261) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 262) * NOTE: you can't actually pass -1 on the lilo prompt. So, to set this
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 263) * variable to -1 you would actually want to simply pass the variable
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 264) * name without a number. That will invert the 0 which will result in
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 265) * -1.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 266) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 267) static uint32_t aic79xx_pci_parity = ~0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 268)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 269) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 270) * There are lots of broken chipsets in the world. Some of them will
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 271) * violate the PCI spec when we issue byte sized memory writes to our
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 272) * controller. I/O mapped register access, if allowed by the given
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 273) * platform, will work in almost all cases.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 274) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 275) uint32_t aic79xx_allow_memio = ~0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 276)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 277) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 278) * So that we can set how long each device is given as a selection timeout.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 279) * The table of values goes like this:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 280) * 0 - 256ms
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 281) * 1 - 128ms
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 282) * 2 - 64ms
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 283) * 3 - 32ms
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 284) * We default to 256ms because some older devices need a longer time
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 285) * to respond to initial selection.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 286) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 287) static uint32_t aic79xx_seltime;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 288)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 289) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 290) * Certain devices do not perform any aging on commands. Should the
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 291) * device be saturated by commands in one portion of the disk, it is
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 292) * possible for transactions on far away sectors to never be serviced.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 293) * To handle these devices, we can periodically send an ordered tag to
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 294) * force all outstanding transactions to be serviced prior to a new
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 295) * transaction.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 296) */
289fe5b1f99c5 (Adrian Bunk 2006-10-20 14:47:57 -0700 297) static uint32_t aic79xx_periodic_otag;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 298)
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 299) /* Some storage boxes are using an LSI chip which has a bug making it
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 300) * impossible to use aic79xx Rev B chip in 320 speeds. The following
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 301) * storage boxes have been reported to be buggy:
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 302) * EonStor 3U 16-Bay: U16U-G3A3
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 303) * EonStor 2U 12-Bay: U12U-G3A3
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 304) * SentinelRAID: 2500F R5 / R6
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 305) * SentinelRAID: 2500F R1
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 306) * SentinelRAID: 2500F/1500F
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 307) * SentinelRAID: 150F
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 308) *
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 309) * To get around this LSI bug, you can set your board to 160 mode
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 310) * or you can enable the SLOWCRC bit.
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 311) */
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 312) uint32_t aic79xx_slowcrc;
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 313)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 314) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 315) * Module information and settable options.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 316) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 317) static char *aic79xx = NULL;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 318)
64624d4f46d5e (Hannes Reinecke 2007-10-19 10:32:29 +0200 319) MODULE_AUTHOR("Maintainer: Hannes Reinecke <hare@suse.de>");
64624d4f46d5e (Hannes Reinecke 2007-10-19 10:32:29 +0200 320) MODULE_DESCRIPTION("Adaptec AIC790X U320 SCSI Host Bus Adapter driver");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 321) MODULE_LICENSE("Dual BSD/GPL");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 322) MODULE_VERSION(AIC79XX_DRIVER_VERSION);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 323) module_param(aic79xx, charp, 0444);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 324) MODULE_PARM_DESC(aic79xx,
2b6ee9b529546 (Randy Dunlap 2006-08-14 23:09:23 -0700 325) "period-delimited options string:\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 326) " verbose Enable verbose/diagnostic logging\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 327) " allow_memio Allow device registers to be memory mapped\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 328) " debug Bitmask of debug values to enable\n"
b1c118121ae37 (Joe Perches 2008-02-03 17:28:22 +0200 329) " no_reset Suppress initial bus resets\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 330) " extended Enable extended geometry on all controllers\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 331) " periodic_otag Send an ordered tagged transaction\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 332) " periodically to prevent tag starvation.\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 333) " This may be required by some older disk\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 334) " or drives/RAID arrays.\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 335) " tag_info:<tag_str> Set per-target tag depth\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 336) " global_tag_depth:<int> Global tag depth for all targets on all buses\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 337) " slewrate:<slewrate_list>Set the signal slew rate (0-15).\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 338) " precomp:<pcomp_list> Set the signal precompensation (0-7).\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 339) " amplitude:<int> Set the signal amplitude (0-7).\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 340) " seltime:<int> Selection Timeout:\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 341) " (0/256ms,1/128ms,2/64ms,3/32ms)\n"
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 342) " slowcrc Turn on the SLOWCRC bit (Rev B only)\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 343) "\n"
970e2486492aa (Lucas De Marchi 2012-03-30 13:37:16 -0700 344) " Sample modprobe configuration file:\n"
970e2486492aa (Lucas De Marchi 2012-03-30 13:37:16 -0700 345) " # Enable verbose logging\n"
970e2486492aa (Lucas De Marchi 2012-03-30 13:37:16 -0700 346) " # Set tag depth on Controller 2/Target 2 to 10 tags\n"
970e2486492aa (Lucas De Marchi 2012-03-30 13:37:16 -0700 347) " # Shorten the selection timeout to 128ms\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 348) "\n"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 349) " options aic79xx 'aic79xx=verbose.tag_info:{{}.{}.{..10}}.seltime:1'\n"
2b6ee9b529546 (Randy Dunlap 2006-08-14 23:09:23 -0700 350) );
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 351)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 352) static void ahd_linux_handle_scsi_status(struct ahd_softc *,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 353) struct scsi_device *,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 354) struct scb *);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 355) static void ahd_linux_queue_cmd_complete(struct ahd_softc *ahd,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 356) struct scsi_cmnd *cmd);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 357) static int ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 358) static void ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 359) static u_int ahd_linux_user_tagdepth(struct ahd_softc *ahd,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 360) struct ahd_devinfo *devinfo);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 361) static void ahd_linux_device_queue_depth(struct scsi_device *);
60a1321384029 (Hannes Reinecke 2005-07-22 16:42:28 +0200 362) static int ahd_linux_run_command(struct ahd_softc*,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 363) struct ahd_linux_device *,
60a1321384029 (Hannes Reinecke 2005-07-22 16:42:28 +0200 364) struct scsi_cmnd *);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 365) static void ahd_linux_setup_tag_info_global(char *p);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 366) static int aic79xx_setup(char *c);
e3e0ca5143d7a (Adrian Bunk 2007-03-26 21:59:29 -0800 367) static void ahd_freeze_simq(struct ahd_softc *ahd);
e3e0ca5143d7a (Adrian Bunk 2007-03-26 21:59:29 -0800 368) static void ahd_release_simq(struct ahd_softc *ahd);
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 369)
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 370) static int ahd_linux_unit;
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 371)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 372)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 373) /************************** OS Utility Wrappers *******************************/
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 374) void ahd_delay(long);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 375) void
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 376) ahd_delay(long usec)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 377) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 378) /*
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 379) * udelay on Linux can have problems for
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 380) * multi-millisecond waits. Wait at most
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 381) * 1024us per call.
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 382) */
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 383) while (usec > 0) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 384) udelay(usec % 1024);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 385) usec -= 1024;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 386) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 387) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 388)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 389)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 390) /***************************** Low Level I/O **********************************/
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 391) uint8_t ahd_inb(struct ahd_softc * ahd, long port);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 392) void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 393) void ahd_outw_atomic(struct ahd_softc * ahd,
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 394) long port, uint16_t val);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 395) void ahd_outsb(struct ahd_softc * ahd, long port,
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 396) uint8_t *, int count);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 397) void ahd_insb(struct ahd_softc * ahd, long port,
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 398) uint8_t *, int count);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 399)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 400) uint8_t
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 401) ahd_inb(struct ahd_softc * ahd, long port)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 402) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 403) uint8_t x;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 404)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 405) if (ahd->tags[0] == BUS_SPACE_MEMIO) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 406) x = readb(ahd->bshs[0].maddr + port);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 407) } else {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 408) x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 409) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 410) mb();
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 411) return (x);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 412) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 413)
d1d7b19d43318 (Denys Vlasenko 2008-04-25 04:34:49 +0200 414) #if 0 /* unused */
d1d7b19d43318 (Denys Vlasenko 2008-04-25 04:34:49 +0200 415) static uint16_t
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 416) ahd_inw_atomic(struct ahd_softc * ahd, long port)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 417) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 418) uint8_t x;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 419)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 420) if (ahd->tags[0] == BUS_SPACE_MEMIO) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 421) x = readw(ahd->bshs[0].maddr + port);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 422) } else {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 423) x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 424) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 425) mb();
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 426) return (x);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 427) }
d1d7b19d43318 (Denys Vlasenko 2008-04-25 04:34:49 +0200 428) #endif
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 429)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 430) void
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 431) ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 432) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 433) if (ahd->tags[0] == BUS_SPACE_MEMIO) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 434) writeb(val, ahd->bshs[0].maddr + port);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 435) } else {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 436) outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 437) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 438) mb();
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 439) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 440)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 441) void
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 442) ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 443) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 444) if (ahd->tags[0] == BUS_SPACE_MEMIO) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 445) writew(val, ahd->bshs[0].maddr + port);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 446) } else {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 447) outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 448) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 449) mb();
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 450) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 451)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 452) void
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 453) ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 454) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 455) int i;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 456)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 457) /*
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 458) * There is probably a more efficient way to do this on Linux
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 459) * but we don't use this for anything speed critical and this
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 460) * should work.
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 461) */
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 462) for (i = 0; i < count; i++)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 463) ahd_outb(ahd, port, *array++);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 464) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 465)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 466) void
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 467) ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 468) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 469) int i;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 470)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 471) /*
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 472) * There is probably a more efficient way to do this on Linux
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 473) * but we don't use this for anything speed critical and this
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 474) * should work.
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 475) */
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 476) for (i = 0; i < count; i++)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 477) *array++ = ahd_inb(ahd, port);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 478) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 479)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 480) /******************************* PCI Routines *********************************/
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 481) uint32_t
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 482) ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 483) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 484) switch (width) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 485) case 1:
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 486) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 487) uint8_t retval;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 488)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 489) pci_read_config_byte(pci, reg, &retval);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 490) return (retval);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 491) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 492) case 2:
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 493) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 494) uint16_t retval;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 495) pci_read_config_word(pci, reg, &retval);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 496) return (retval);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 497) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 498) case 4:
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 499) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 500) uint32_t retval;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 501) pci_read_config_dword(pci, reg, &retval);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 502) return (retval);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 503) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 504) default:
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 505) panic("ahd_pci_read_config: Read size too big");
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 506) /* NOTREACHED */
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 507) return (0);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 508) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 509) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 510)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 511) void
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 512) ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 513) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 514) switch (width) {
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 515) case 1:
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 516) pci_write_config_byte(pci, reg, value);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 517) break;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 518) case 2:
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 519) pci_write_config_word(pci, reg, value);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 520) break;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 521) case 4:
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 522) pci_write_config_dword(pci, reg, value);
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 523) break;
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 524) default:
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 525) panic("ahd_pci_write_config: Write size too big");
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 526) /* NOTREACHED */
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 527) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 528) }
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 529)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 530) /****************************** Inlines ***************************************/
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 531) static void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 532)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 533) static void
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 534) ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 535) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 536) struct scsi_cmnd *cmd;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 537)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 538) cmd = scb->io_ctx;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 539) ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE);
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 540) scsi_dma_unmap(cmd);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 541) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 542)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 543) /******************************** Macros **************************************/
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 544) #define BUILD_SCSIID(ahd, cmd) \
422c0d61d591c (Jeff Garzik 2005-10-24 18:05:09 -0400 545) (((scmd_id(cmd) << TID_SHIFT) & TID) | (ahd)->our_id)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 546)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 547) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 548) * Return a string describing the driver.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 549) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 550) static const char *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 551) ahd_linux_info(struct Scsi_Host *host)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 552) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 553) static char buffer[512];
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 554) char ahd_info[256];
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 555) char *bp;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 556) struct ahd_softc *ahd;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 557)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 558) bp = &buffer[0];
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 559) ahd = *(struct ahd_softc **)host->hostdata;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 560) memset(bp, 0, sizeof(buffer));
980b306a29772 (Denys Vlasenko 2008-04-25 04:36:01 +0200 561) strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev " AIC79XX_DRIVER_VERSION "\n"
980b306a29772 (Denys Vlasenko 2008-04-25 04:36:01 +0200 562) " <");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 563) strcat(bp, ahd->description);
980b306a29772 (Denys Vlasenko 2008-04-25 04:36:01 +0200 564) strcat(bp, ">\n"
980b306a29772 (Denys Vlasenko 2008-04-25 04:36:01 +0200 565) " ");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 566) ahd_controller_info(ahd, ahd_info);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 567) strcat(bp, ahd_info);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 568)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 569) return (bp);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 570) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 571)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 572) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 573) * Queue an SCB to the controller.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 574) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 575) static int
f281233d3eba1 (Jeff Garzik 2010-11-16 02:10:29 -0500 576) ahd_linux_queue_lck(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *))
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 577) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 578) struct ahd_softc *ahd;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 579) struct ahd_linux_device *dev = scsi_transport_device_data(cmd->device);
4065a413d7684 (Christoph Hellwig 2005-10-31 20:05:01 +0100 580) int rtn = SCSI_MLQUEUE_HOST_BUSY;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 581)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 582) ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 583)
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 584) cmd->scsi_done = scsi_done;
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 585) cmd->result = CAM_REQ_INPROG << 16;
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 586) rtn = ahd_linux_run_command(ahd, dev, cmd);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 587)
4065a413d7684 (Christoph Hellwig 2005-10-31 20:05:01 +0100 588) return rtn;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 589) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 590)
f281233d3eba1 (Jeff Garzik 2010-11-16 02:10:29 -0500 591) static DEF_SCSI_QCMD(ahd_linux_queue)
f281233d3eba1 (Jeff Garzik 2010-11-16 02:10:29 -0500 592)
be0d67680d524 (Denys Vlasenko 2008-03-23 04:41:22 +0100 593) static struct scsi_target **
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 594) ahd_linux_target_in_softc(struct scsi_target *starget)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 595) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 596) struct ahd_softc *ahd =
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 597) *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 598) unsigned int target_offset;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 599)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 600) target_offset = starget->id;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 601) if (starget->channel != 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 602) target_offset += 8;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 603)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 604) return &ahd->platform_data->starget[target_offset];
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 605) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 606)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 607) static int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 608) ahd_linux_target_alloc(struct scsi_target *starget)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 609) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 610) struct ahd_softc *ahd =
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 611) *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata);
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 612) struct seeprom_config *sc = ahd->seep_config;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 613) unsigned long flags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 614) struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 615) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 616) struct ahd_initiator_tinfo *tinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 617) struct ahd_tmode_tstate *tstate;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 618) char channel = starget->channel + 'A';
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 619)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 620) ahd_lock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 621)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 622) BUG_ON(*ahd_targp != NULL);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 623)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 624) *ahd_targp = starget;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 625)
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 626) if (sc) {
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 627) int flags = sc->device_flags[starget->id];
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 628)
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 629) tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 630) starget->id, &tstate);
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 631)
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 632) if ((flags & CFPACKETIZED) == 0) {
ea4431906d866 (James Bottomley 2009-06-13 12:19:05 -0500 633) /* don't negotiate packetized (IU) transfers */
ea4431906d866 (James Bottomley 2009-06-13 12:19:05 -0500 634) spi_max_iu(starget) = 0;
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 635) } else {
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 636) if ((ahd->features & AHD_RTI) == 0)
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 637) spi_rti(starget) = 0;
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 638) }
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 639)
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 640) if ((flags & CFQAS) == 0)
ea4431906d866 (James Bottomley 2009-06-13 12:19:05 -0500 641) spi_max_qas(starget) = 0;
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 642)
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 643) /* Transinfo values have been set to BIOS settings */
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 644) spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0;
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 645) spi_min_period(starget) = tinfo->user.period;
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 646) spi_max_offset(starget) = tinfo->user.offset;
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 647) }
986a25f96accc (Hannes Reinecke 2006-03-08 12:59:35 +0100 648)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 649) tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 650) starget->id, &tstate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 651) ahd_compile_devinfo(&devinfo, ahd->our_id, starget->id,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 652) CAM_LUN_WILDCARD, channel,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 653) ROLE_INITIATOR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 654) ahd_set_syncrate(ahd, &devinfo, 0, 0, 0,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 655) AHD_TRANS_GOAL, /*paused*/FALSE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 656) ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 657) AHD_TRANS_GOAL, /*paused*/FALSE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 658) ahd_unlock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 659)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 660) return 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 661) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 662)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 663) static void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 664) ahd_linux_target_destroy(struct scsi_target *starget)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 665) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 666) struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 667)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 668) *ahd_targp = NULL;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 669) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 670)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 671) static int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 672) ahd_linux_slave_alloc(struct scsi_device *sdev)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 673) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 674) struct ahd_softc *ahd =
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 675) *((struct ahd_softc **)sdev->host->hostdata);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 676) struct ahd_linux_device *dev;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 677)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 678) if (bootverbose)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 679) printk("%s: Slave Alloc %d\n", ahd_name(ahd), sdev->id);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 680)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 681) dev = scsi_transport_device_data(sdev);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 682) memset(dev, 0, sizeof(*dev));
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 683)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 684) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 685) * We start out life using untagged
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 686) * transactions of which we allow one.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 687) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 688) dev->openings = 1;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 689)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 690) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 691) * Set maxtags to 0. This will be changed if we
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 692) * later determine that we are dealing with
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 693) * a tagged queuing capable device.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 694) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 695) dev->maxtags = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 696)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 697) return (0);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 698) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 699)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 700) static int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 701) ahd_linux_slave_configure(struct scsi_device *sdev)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 702) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 703) struct ahd_softc *ahd;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 704)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 705) ahd = *((struct ahd_softc **)sdev->host->hostdata);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 706) if (bootverbose)
017560fca496f (Jeff Garzik 2005-10-24 18:04:36 -0400 707) sdev_printk(KERN_INFO, sdev, "Slave Configure\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 708)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 709) ahd_linux_device_queue_depth(sdev);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 710)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 711) /* Initial Domain Validation */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 712) if (!spi_initial_dv(sdev->sdev_target))
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 713) spi_dv_device(sdev);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 714)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 715) return 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 716) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 717)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 718) #if defined(__i386__)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 719) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 720) * Return the disk geometry for the given SCSI device.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 721) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 722) static int
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 723) ahd_linux_biosparam(struct scsi_device *sdev, struct block_device *bdev,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 724) sector_t capacity, int geom[])
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 725) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 726) int heads;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 727) int sectors;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 728) int cylinders;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 729) int extended;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 730) struct ahd_softc *ahd;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 731)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 732) ahd = *((struct ahd_softc **)sdev->host->hostdata);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 733)
a10183d744fb4 (Christoph Hellwig 2020-03-24 08:25:17 +0100 734) if (scsi_partsize(bdev, capacity, geom))
a10183d744fb4 (Christoph Hellwig 2020-03-24 08:25:17 +0100 735) return 0;
a10183d744fb4 (Christoph Hellwig 2020-03-24 08:25:17 +0100 736)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 737) heads = 64;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 738) sectors = 32;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 739) cylinders = aic_sector_div(capacity, heads, sectors);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 740)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 741) if (aic79xx_extended != 0)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 742) extended = 1;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 743) else
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 744) extended = (ahd->flags & AHD_EXTENDED_TRANS_A) != 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 745) if (extended && cylinders >= 1024) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 746) heads = 255;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 747) sectors = 63;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 748) cylinders = aic_sector_div(capacity, heads, sectors);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 749) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 750) geom[0] = heads;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 751) geom[1] = sectors;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 752) geom[2] = cylinders;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 753) return (0);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 754) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 755) #endif
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 756)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 757) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 758) * Abort the current SCSI command(s).
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 759) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 760) static int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 761) ahd_linux_abort(struct scsi_cmnd *cmd)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 762) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 763) int error;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 764)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 765) error = ahd_linux_queue_abort_cmd(cmd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 766)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 767) return error;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 768) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 769)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 770) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 771) * Attempt to send a target reset message to the device that timed out.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 772) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 773) static int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 774) ahd_linux_dev_reset(struct scsi_cmnd *cmd)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 775) {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 776) struct ahd_softc *ahd;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 777) struct ahd_linux_device *dev;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 778) struct scb *reset_scb;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 779) u_int cdb_byte;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 780) int retval = SUCCESS;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 781) int paused;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 782) int wait;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 783) struct ahd_initiator_tinfo *tinfo;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 784) struct ahd_tmode_tstate *tstate;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 785) unsigned long flags;
6e9a4738c9fad (Peter Zijlstra 2006-09-30 23:28:10 -0700 786) DECLARE_COMPLETION_ONSTACK(done);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 787)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 788) reset_scb = NULL;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 789) paused = FALSE;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 790) wait = FALSE;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 791) ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 792)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 793) scmd_printk(KERN_INFO, cmd,
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 794) "Attempting to queue a TARGET RESET message:");
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 795)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 796) printk("CDB:");
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 797) for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 798) printk(" 0x%x", cmd->cmnd[cdb_byte]);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 799) printk("\n");
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 800)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 801) /*
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 802) * Determine if we currently own this command.
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 803) */
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 804) dev = scsi_transport_device_data(cmd->device);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 805)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 806) if (dev == NULL) {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 807) /*
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 808) * No target device for this command exists,
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 809) * so we must not still own the command.
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 810) */
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 811) scmd_printk(KERN_INFO, cmd, "Is not an active device\n");
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 812) return SUCCESS;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 813) }
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 814)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 815) /*
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 816) * Generate us a new SCB
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 817) */
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 818) reset_scb = ahd_get_scb(ahd, AHD_NEVER_COL_IDX);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 819) if (!reset_scb) {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 820) scmd_printk(KERN_INFO, cmd, "No SCB available\n");
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 821) return FAILED;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 822) }
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 823)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 824) tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 825) cmd->device->id, &tstate);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 826) reset_scb->io_ctx = cmd;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 827) reset_scb->platform_data->dev = dev;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 828) reset_scb->sg_count = 0;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 829) ahd_set_residual(reset_scb, 0);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 830) ahd_set_sense_residual(reset_scb, 0);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 831) reset_scb->platform_data->xfer_len = 0;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 832) reset_scb->hscb->control = 0;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 833) reset_scb->hscb->scsiid = BUILD_SCSIID(ahd,cmd);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 834) reset_scb->hscb->lun = cmd->device->lun;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 835) reset_scb->hscb->cdb_len = 0;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 836) reset_scb->hscb->task_management = SIU_TASKMGMT_LUN_RESET;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 837) reset_scb->flags |= SCB_DEVICE_RESET|SCB_RECOVERY_SCB|SCB_ACTIVE;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 838) if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 839) reset_scb->flags |= SCB_PACKETIZED;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 840) } else {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 841) reset_scb->hscb->control |= MK_MESSAGE;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 842) }
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 843) dev->openings--;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 844) dev->active++;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 845) dev->commands_issued++;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 846)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 847) ahd_lock(ahd, &flags);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 848)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 849) LIST_INSERT_HEAD(&ahd->pending_scbs, reset_scb, pending_links);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 850) ahd_queue_scb(ahd, reset_scb);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 851)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 852) ahd->platform_data->eh_done = &done;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 853) ahd_unlock(ahd, &flags);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 854)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 855) printk("%s: Device reset code sleeping\n", ahd_name(ahd));
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 856) if (!wait_for_completion_timeout(&done, 5 * HZ)) {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 857) ahd_lock(ahd, &flags);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 858) ahd->platform_data->eh_done = NULL;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 859) ahd_unlock(ahd, &flags);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 860) printk("%s: Device reset timer expired (active %d)\n",
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 861) ahd_name(ahd), dev->active);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 862) retval = FAILED;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 863) }
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 864) printk("%s: Device reset returning 0x%x\n", ahd_name(ahd), retval);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 865)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 866) return (retval);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 867) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 868)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 869) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 870) * Reset the SCSI bus.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 871) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 872) static int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 873) ahd_linux_bus_reset(struct scsi_cmnd *cmd)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 874) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 875) struct ahd_softc *ahd;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 876) int found;
f41b5cec9bd6f (Hannes Reinecke 2006-04-03 08:19:34 +0200 877) unsigned long flags;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 878)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 879) ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 880) #ifdef AHD_DEBUG
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 881) if ((ahd_debug & AHD_SHOW_RECOVERY) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 882) printk("%s: Bus reset called for cmd %p\n",
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 883) ahd_name(ahd), cmd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 884) #endif
f41b5cec9bd6f (Hannes Reinecke 2006-04-03 08:19:34 +0200 885) ahd_lock(ahd, &flags);
f41b5cec9bd6f (Hannes Reinecke 2006-04-03 08:19:34 +0200 886)
422c0d61d591c (Jeff Garzik 2005-10-24 18:05:09 -0400 887) found = ahd_reset_channel(ahd, scmd_channel(cmd) + 'A',
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 888) /*initiate reset*/TRUE);
f41b5cec9bd6f (Hannes Reinecke 2006-04-03 08:19:34 +0200 889) ahd_unlock(ahd, &flags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 890)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 891) if (bootverbose)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 892) printk("%s: SCSI bus reset delivered. "
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 893) "%d SCBs aborted.\n", ahd_name(ahd), found);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 894)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 895) return (SUCCESS);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 896) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 897)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 898) struct scsi_host_template aic79xx_driver_template = {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 899) .module = THIS_MODULE,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 900) .name = "aic79xx",
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 901) .proc_name = "aic79xx",
f6f83a6c92107 (Al Viro 2013-03-31 03:59:17 -0400 902) .show_info = ahd_linux_show_info,
f6f83a6c92107 (Al Viro 2013-03-31 03:59:17 -0400 903) .write_info = ahd_proc_write_seeprom,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 904) .info = ahd_linux_info,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 905) .queuecommand = ahd_linux_queue,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 906) .eh_abort_handler = ahd_linux_abort,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 907) .eh_device_reset_handler = ahd_linux_dev_reset,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 908) .eh_bus_reset_handler = ahd_linux_bus_reset,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 909) #if defined(__i386__)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 910) .bios_param = ahd_linux_biosparam,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 911) #endif
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 912) .can_queue = AHD_MAX_QUEUE,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 913) .this_id = -1,
80f1443c66de3 (Hannes Reinecke 2006-10-06 09:22:41 +0200 914) .max_sectors = 8192,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 915) .cmd_per_lun = 2,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 916) .slave_alloc = ahd_linux_slave_alloc,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 917) .slave_configure = ahd_linux_slave_configure,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 918) .target_alloc = ahd_linux_target_alloc,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 919) .target_destroy = ahd_linux_target_destroy,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 920) };
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 921)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 922) /******************************** Bus DMA *************************************/
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 923) int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 924) ahd_dma_tag_create(struct ahd_softc *ahd, bus_dma_tag_t parent,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 925) bus_size_t alignment, bus_size_t boundary,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 926) dma_addr_t lowaddr, dma_addr_t highaddr,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 927) bus_dma_filter_t *filter, void *filterarg,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 928) bus_size_t maxsize, int nsegments,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 929) bus_size_t maxsegsz, int flags, bus_dma_tag_t *ret_tag)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 930) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 931) bus_dma_tag_t dmat;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 932)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 933) dmat = kmalloc(sizeof(*dmat), GFP_ATOMIC);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 934) if (dmat == NULL)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 935) return (ENOMEM);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 936)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 937) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 938) * Linux is very simplistic about DMA memory. For now don't
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 939) * maintain all specification information. Once Linux supplies
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 940) * better facilities for doing these operations, or the
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 941) * needs of this particular driver change, we might need to do
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 942) * more here.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 943) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 944) dmat->alignment = alignment;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 945) dmat->boundary = boundary;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 946) dmat->maxsize = maxsize;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 947) *ret_tag = dmat;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 948) return (0);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 949) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 950)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 951) void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 952) ahd_dma_tag_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 953) {
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 954) kfree(dmat);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 955) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 956)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 957) int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 958) ahd_dmamem_alloc(struct ahd_softc *ahd, bus_dma_tag_t dmat, void** vaddr,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 959) int flags, bus_dmamap_t *mapp)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 960) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 961) *vaddr = pci_alloc_consistent(ahd->dev_softc,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 962) dmat->maxsize, mapp);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 963) if (*vaddr == NULL)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 964) return (ENOMEM);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 965) return(0);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 966) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 967)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 968) void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 969) ahd_dmamem_free(struct ahd_softc *ahd, bus_dma_tag_t dmat,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 970) void* vaddr, bus_dmamap_t map)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 971) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 972) pci_free_consistent(ahd->dev_softc, dmat->maxsize,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 973) vaddr, map);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 974) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 975)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 976) int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 977) ahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 978) void *buf, bus_size_t buflen, bus_dmamap_callback_t *cb,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 979) void *cb_arg, int flags)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 980) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 981) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 982) * Assume for now that this will only be used during
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 983) * initialization and not for per-transaction buffer mapping.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 984) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 985) bus_dma_segment_t stack_sg;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 986)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 987) stack_sg.ds_addr = map;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 988) stack_sg.ds_len = dmat->maxsize;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 989) cb(cb_arg, &stack_sg, /*nseg*/1, /*error*/0);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 990) return (0);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 991) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 992)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 993) void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 994) ahd_dmamap_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 995) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 996) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 997)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 998) int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 999) ahd_dmamap_unload(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1000) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1001) /* Nothing to do */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1002) return (0);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1003) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1004)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1005) /********************* Platform Dependent Functions ***************************/
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1006) static void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1007) ahd_linux_setup_iocell_info(u_long index, int instance, int targ, int32_t value)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1008) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1009)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1010) if ((instance >= 0)
6391a11375de5 (Tobias Klauser 2006-06-08 22:23:48 -0700 1011) && (instance < ARRAY_SIZE(aic79xx_iocell_info))) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1012) uint8_t *iocell_info;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1013)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1014) iocell_info = (uint8_t*)&aic79xx_iocell_info[instance];
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1015) iocell_info[index] = value & 0xFFFF;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1016) if (bootverbose)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1017) printk("iocell[%d:%ld] = %d\n", instance, index, value);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1018) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1019) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1020)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1021) static void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1022) ahd_linux_setup_tag_info_global(char *p)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1023) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1024) int tags, i, j;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1025)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1026) tags = simple_strtoul(p + 1, NULL, 0) & 0xff;
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1027) printk("Setting Global Tags= %d\n", tags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1028)
6391a11375de5 (Tobias Klauser 2006-06-08 22:23:48 -0700 1029) for (i = 0; i < ARRAY_SIZE(aic79xx_tag_info); i++) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1030) for (j = 0; j < AHD_NUM_TARGETS; j++) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1031) aic79xx_tag_info[i].tag_commands[j] = tags;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1032) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1033) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1034) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1035)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1036) static void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1037) ahd_linux_setup_tag_info(u_long arg, int instance, int targ, int32_t value)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1038) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1039)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1040) if ((instance >= 0) && (targ >= 0)
6391a11375de5 (Tobias Klauser 2006-06-08 22:23:48 -0700 1041) && (instance < ARRAY_SIZE(aic79xx_tag_info))
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1042) && (targ < AHD_NUM_TARGETS)) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1043) aic79xx_tag_info[instance].tag_commands[targ] = value & 0x1FF;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1044) if (bootverbose)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1045) printk("tag_info[%d:%d] = %d\n", instance, targ, value);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1046) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1047) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1048)
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1049) static char *
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1050) ahd_parse_brace_option(char *opt_name, char *opt_arg, char *end, int depth,
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1051) void (*callback)(u_long, int, int, int32_t),
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1052) u_long callback_arg)
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1053) {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1054) char *tok_end;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1055) char *tok_end2;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1056) int i;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1057) int instance;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1058) int targ;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1059) int done;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1060) char tok_list[] = {'.', ',', '{', '}', '\0'};
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1061)
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1062) /* All options use a ':' name/arg separator */
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1063) if (*opt_arg != ':')
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1064) return (opt_arg);
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1065) opt_arg++;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1066) instance = -1;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1067) targ = -1;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1068) done = FALSE;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1069) /*
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1070) * Restore separator that may be in
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1071) * the middle of our option argument.
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1072) */
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1073) tok_end = strchr(opt_arg, '\0');
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1074) if (tok_end < end)
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1075) *tok_end = ',';
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1076) while (!done) {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1077) switch (*opt_arg) {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1078) case '{':
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1079) if (instance == -1) {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1080) instance = 0;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1081) } else {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1082) if (depth > 1) {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1083) if (targ == -1)
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1084) targ = 0;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1085) } else {
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1086) printk("Malformed Option %s\n",
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1087) opt_name);
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1088) done = TRUE;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1089) }
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1090) }
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1091) opt_arg++;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1092) break;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1093) case '}':
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1094) if (targ != -1)
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1095) targ = -1;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1096) else if (instance != -1)
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1097) instance = -1;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1098) opt_arg++;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1099) break;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1100) case ',':
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1101) case '.':
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1102) if (instance == -1)
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1103) done = TRUE;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1104) else if (targ >= 0)
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1105) targ++;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1106) else if (instance >= 0)
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1107) instance++;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1108) opt_arg++;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1109) break;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1110) case '\0':
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1111) done = TRUE;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1112) break;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1113) default:
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1114) tok_end = end;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1115) for (i = 0; tok_list[i]; i++) {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1116) tok_end2 = strchr(opt_arg, tok_list[i]);
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1117) if ((tok_end2) && (tok_end2 < tok_end))
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1118) tok_end = tok_end2;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1119) }
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1120) callback(callback_arg, instance, targ,
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1121) simple_strtol(opt_arg, NULL, 0));
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1122) opt_arg = tok_end;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1123) break;
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1124) }
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1125) }
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1126) return (opt_arg);
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1127) }
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1128)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1129) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1130) * Handle Linux boot parameters. This routine allows for assigning a value
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1131) * to a parameter with a ':' between the parameter and the value.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1132) * ie. aic79xx=stpwlev:1,extended
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1133) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1134) static int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1135) aic79xx_setup(char *s)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1136) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1137) int i, n;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1138) char *p;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1139) char *end;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1140)
980b306a29772 (Denys Vlasenko 2008-04-25 04:36:01 +0200 1141) static const struct {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1142) const char *name;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1143) uint32_t *flag;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1144) } options[] = {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1145) { "extended", &aic79xx_extended },
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1146) { "no_reset", &aic79xx_no_reset },
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1147) { "verbose", &aic79xx_verbose },
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1148) { "allow_memio", &aic79xx_allow_memio},
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1149) #ifdef AHD_DEBUG
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1150) { "debug", &ahd_debug },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1151) #endif
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1152) { "periodic_otag", &aic79xx_periodic_otag },
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1153) { "pci_parity", &aic79xx_pci_parity },
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1154) { "seltime", &aic79xx_seltime },
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1155) { "tag_info", NULL },
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1156) { "global_tag_depth", NULL},
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1157) { "slewrate", NULL },
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1158) { "precomp", NULL },
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1159) { "amplitude", NULL },
3fb086126462c (Hannes Reinecke 2006-01-24 10:44:38 +0100 1160) { "slowcrc", &aic79xx_slowcrc },
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1161) };
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1162)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1163) end = strchr(s, '\0');
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1164)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1165) /*
6391a11375de5 (Tobias Klauser 2006-06-08 22:23:48 -0700 1166) * XXX ia64 gcc isn't smart enough to know that ARRAY_SIZE
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1167) * will never be 0 in this case.
6391a11375de5 (Tobias Klauser 2006-06-08 22:23:48 -0700 1168) */
6391a11375de5 (Tobias Klauser 2006-06-08 22:23:48 -0700 1169) n = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1170)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1171) while ((p = strsep(&s, ",.")) != NULL) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1172) if (*p == '\0')
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1173) continue;
6391a11375de5 (Tobias Klauser 2006-06-08 22:23:48 -0700 1174) for (i = 0; i < ARRAY_SIZE(options); i++) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1175)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1176) n = strlen(options[i].name);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1177) if (strncmp(options[i].name, p, n) == 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1178) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1179) }
6391a11375de5 (Tobias Klauser 2006-06-08 22:23:48 -0700 1180) if (i == ARRAY_SIZE(options))
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1181) continue;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1182)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1183) if (strncmp(p, "global_tag_depth", n) == 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1184) ahd_linux_setup_tag_info_global(p + n);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1185) } else if (strncmp(p, "tag_info", n) == 0) {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1186) s = ahd_parse_brace_option("tag_info", p + n, end,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1187) 2, ahd_linux_setup_tag_info, 0);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1188) } else if (strncmp(p, "slewrate", n) == 0) {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1189) s = ahd_parse_brace_option("slewrate",
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1190) p + n, end, 1, ahd_linux_setup_iocell_info,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1191) AIC79XX_SLEWRATE_INDEX);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1192) } else if (strncmp(p, "precomp", n) == 0) {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1193) s = ahd_parse_brace_option("precomp",
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1194) p + n, end, 1, ahd_linux_setup_iocell_info,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1195) AIC79XX_PRECOMP_INDEX);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1196) } else if (strncmp(p, "amplitude", n) == 0) {
1ff927306e08b (Christoph Hellwig 2005-08-19 18:57:13 +0200 1197) s = ahd_parse_brace_option("amplitude",
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1198) p + n, end, 1, ahd_linux_setup_iocell_info,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1199) AIC79XX_AMPLITUDE_INDEX);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1200) } else if (p[n] == ':') {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1201) *(options[i].flag) = simple_strtoul(p + n + 1, NULL, 0);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1202) } else if (!strncmp(p, "verbose", n)) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1203) *(options[i].flag) = 1;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1204) } else {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1205) *(options[i].flag) ^= 0xFFFFFFFF;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1206) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1207) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1208) return 1;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1209) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1210)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1211) __setup("aic79xx=", aic79xx_setup);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1212)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1213) uint32_t aic79xx_verbose;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1214)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1215) int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1216) ahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *template)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1217) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1218) char buf[80];
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1219) struct Scsi_Host *host;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1220) char *new_name;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1221) u_long s;
e7a1ca1d27e20 (Jesper Juhl 2005-12-14 19:27:28 +0100 1222) int retval;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1223)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1224) template->name = ahd->description;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1225) host = scsi_host_alloc(template, sizeof(struct ahd_softc *));
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1226) if (host == NULL)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1227) return (ENOMEM);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1228)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1229) *((struct ahd_softc **)host->hostdata) = ahd;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1230) ahd->platform_data->host = host;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1231) host->can_queue = AHD_MAX_QUEUE;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1232) host->cmd_per_lun = 2;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1233) host->sg_tablesize = AHD_NSEG;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1234) host->this_id = ahd->our_id;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1235) host->irq = ahd->platform_data->irq;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1236) host->max_id = (ahd->features & AHD_WIDE) ? 16 : 8;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1237) host->max_lun = AHD_NUM_LUNS;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1238) host->max_channel = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1239) host->sg_tablesize = AHD_NSEG;
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 1240) ahd_lock(ahd, &s);
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 1241) ahd_set_unit(ahd, ahd_linux_unit++);
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 1242) ahd_unlock(ahd, &s);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1243) sprintf(buf, "scsi%d", host->host_no);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1244) new_name = kmalloc(strlen(buf) + 1, GFP_ATOMIC);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1245) if (new_name != NULL) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1246) strcpy(new_name, buf);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1247) ahd_set_name(ahd, new_name);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1248) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1249) host->unique_id = ahd->unit;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1250) ahd_linux_initialize_scsi_bus(ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1251) ahd_intr_enable(ahd, TRUE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1252)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1253) host->transportt = ahd_linux_transport_template;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1254)
e7a1ca1d27e20 (Jesper Juhl 2005-12-14 19:27:28 +0100 1255) retval = scsi_add_host(host, &ahd->dev_softc->dev);
e7a1ca1d27e20 (Jesper Juhl 2005-12-14 19:27:28 +0100 1256) if (retval) {
e7a1ca1d27e20 (Jesper Juhl 2005-12-14 19:27:28 +0100 1257) printk(KERN_WARNING "aic79xx: scsi_add_host failed\n");
e7a1ca1d27e20 (Jesper Juhl 2005-12-14 19:27:28 +0100 1258) scsi_host_put(host);
e7a1ca1d27e20 (Jesper Juhl 2005-12-14 19:27:28 +0100 1259) return retval;
e7a1ca1d27e20 (Jesper Juhl 2005-12-14 19:27:28 +0100 1260) }
e7a1ca1d27e20 (Jesper Juhl 2005-12-14 19:27:28 +0100 1261)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1262) scsi_scan_host(host);
e7a1ca1d27e20 (Jesper Juhl 2005-12-14 19:27:28 +0100 1263) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1264) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1265)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1266) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1267) * Place the SCSI bus into a known state by either resetting it,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1268) * or forcing transfer negotiations on the next command to any
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1269) * target.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1270) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1271) static void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1272) ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1273) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1274) u_int target_id;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1275) u_int numtarg;
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 1276) unsigned long s;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1277)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1278) target_id = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1279) numtarg = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1280)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1281) if (aic79xx_no_reset != 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1282) ahd->flags &= ~AHD_RESET_BUS_A;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1283)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1284) if ((ahd->flags & AHD_RESET_BUS_A) != 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1285) ahd_reset_channel(ahd, 'A', /*initiate_reset*/TRUE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1286) else
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1287) numtarg = (ahd->features & AHD_WIDE) ? 16 : 8;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1288)
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 1289) ahd_lock(ahd, &s);
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 1290)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1291) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1292) * Force negotiation to async for all targets that
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1293) * will not see an initial bus reset.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1294) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1295) for (; target_id < numtarg; target_id++) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1296) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1297) struct ahd_initiator_tinfo *tinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1298) struct ahd_tmode_tstate *tstate;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1299)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1300) tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1301) target_id, &tstate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1302) ahd_compile_devinfo(&devinfo, ahd->our_id, target_id,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1303) CAM_LUN_WILDCARD, 'A', ROLE_INITIATOR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1304) ahd_update_neg_request(ahd, &devinfo, tstate,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1305) tinfo, AHD_NEG_ALWAYS);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1306) }
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 1307) ahd_unlock(ahd, &s);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1308) /* Give the bus some time to recover */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1309) if ((ahd->flags & AHD_RESET_BUS_A) != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1310) ahd_freeze_simq(ahd);
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 1311) msleep(AIC79XX_RESET_DELAY);
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 1312) ahd_release_simq(ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1313) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1314) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1315)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1316) int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1317) ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1318) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1319) ahd->platform_data =
114fc1d9a8cc7 (Michael Opdenacker 2015-03-26 17:51:46 -0700 1320) kzalloc(sizeof(struct ahd_platform_data), GFP_ATOMIC);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1321) if (ahd->platform_data == NULL)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1322) return (ENOMEM);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1323) ahd->platform_data->irq = AHD_LINUX_NOIRQ;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1324) ahd_lockinit(ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1325) ahd->seltime = (aic79xx_seltime & 0x3) << 4;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1326) return (0);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1327) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1328)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1329) void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1330) ahd_platform_free(struct ahd_softc *ahd)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1331) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1332) struct scsi_target *starget;
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 1333) int i;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1334)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1335) if (ahd->platform_data != NULL) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1336) /* destroy all of the device and target objects */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1337) for (i = 0; i < AHD_NUM_TARGETS; i++) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1338) starget = ahd->platform_data->starget[i];
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1339) if (starget != NULL) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1340) ahd->platform_data->starget[i] = NULL;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1341) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1342) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1343)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1344) if (ahd->platform_data->irq != AHD_LINUX_NOIRQ)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1345) free_irq(ahd->platform_data->irq, ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1346) if (ahd->tags[0] == BUS_SPACE_PIO
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1347) && ahd->bshs[0].ioport != 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1348) release_region(ahd->bshs[0].ioport, 256);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1349) if (ahd->tags[1] == BUS_SPACE_PIO
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1350) && ahd->bshs[1].ioport != 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1351) release_region(ahd->bshs[1].ioport, 256);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1352) if (ahd->tags[0] == BUS_SPACE_MEMIO
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1353) && ahd->bshs[0].maddr != NULL) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1354) iounmap(ahd->bshs[0].maddr);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1355) release_mem_region(ahd->platform_data->mem_busaddr,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1356) 0x1000);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1357) }
97af50f60ff12 (James Bottomley 2005-10-02 15:22:35 -0500 1358) if (ahd->platform_data->host)
97af50f60ff12 (James Bottomley 2005-10-02 15:22:35 -0500 1359) scsi_host_put(ahd->platform_data->host);
97af50f60ff12 (James Bottomley 2005-10-02 15:22:35 -0500 1360)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1361) kfree(ahd->platform_data);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1362) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1363) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1364)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1365) void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1366) ahd_platform_init(struct ahd_softc *ahd)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1367) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1368) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1369) * Lookup and commit any modified IO Cell options.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1370) */
6391a11375de5 (Tobias Klauser 2006-06-08 22:23:48 -0700 1371) if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) {
980b306a29772 (Denys Vlasenko 2008-04-25 04:36:01 +0200 1372) const struct ahd_linux_iocell_opts *iocell_opts;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1373)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1374) iocell_opts = &aic79xx_iocell_info[ahd->unit];
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1375) if (iocell_opts->precomp != AIC79XX_DEFAULT_PRECOMP)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1376) AHD_SET_PRECOMP(ahd, iocell_opts->precomp);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1377) if (iocell_opts->slewrate != AIC79XX_DEFAULT_SLEWRATE)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1378) AHD_SET_SLEWRATE(ahd, iocell_opts->slewrate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1379) if (iocell_opts->amplitude != AIC79XX_DEFAULT_AMPLITUDE)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1380) AHD_SET_AMPLITUDE(ahd, iocell_opts->amplitude);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1381) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1382)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1383) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1384)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1385) void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1386) ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1387) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1388) ahd_platform_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb),
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1389) SCB_GET_CHANNEL(ahd, scb),
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1390) SCB_GET_LUN(scb), SCB_LIST_NULL,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1391) ROLE_UNKNOWN, CAM_REQUEUE_REQ);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1392) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1393)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1394) void
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 1395) ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev,
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 1396) struct ahd_devinfo *devinfo, ahd_queue_alg alg)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1397) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1398) struct ahd_linux_device *dev;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1399) int was_queuing;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1400) int now_queuing;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1401)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1402) if (sdev == NULL)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1403) return;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1404)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1405) dev = scsi_transport_device_data(sdev);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1406)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1407) if (dev == NULL)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1408) return;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1409) was_queuing = dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1410) switch (alg) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1411) default:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1412) case AHD_QUEUE_NONE:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1413) now_queuing = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1414) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1415) case AHD_QUEUE_BASIC:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1416) now_queuing = AHD_DEV_Q_BASIC;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1417) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1418) case AHD_QUEUE_TAGGED:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1419) now_queuing = AHD_DEV_Q_TAGGED;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1420) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1421) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1422) if ((dev->flags & AHD_DEV_FREEZE_TIL_EMPTY) == 0
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1423) && (was_queuing != now_queuing)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1424) && (dev->active != 0)) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1425) dev->flags |= AHD_DEV_FREEZE_TIL_EMPTY;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1426) dev->qfrozen++;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1427) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1428)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1429) dev->flags &= ~(AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED|AHD_DEV_PERIODIC_OTAG);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1430) if (now_queuing) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1431) u_int usertags;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1432)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1433) usertags = ahd_linux_user_tagdepth(ahd, devinfo);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1434) if (!was_queuing) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1435) /*
25985edcedea6 (Lucas De Marchi 2011-03-30 22:57:33 -0300 1436) * Start out aggressively and allow our
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1437) * dynamic queue depth algorithm to take
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1438) * care of the rest.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1439) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1440) dev->maxtags = usertags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1441) dev->openings = dev->maxtags - dev->active;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1442) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1443) if (dev->maxtags == 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1444) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1445) * Queueing is disabled by the user.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1446) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1447) dev->openings = 1;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1448) } else if (alg == AHD_QUEUE_TAGGED) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1449) dev->flags |= AHD_DEV_Q_TAGGED;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1450) if (aic79xx_periodic_otag != 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1451) dev->flags |= AHD_DEV_PERIODIC_OTAG;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1452) } else
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1453) dev->flags |= AHD_DEV_Q_BASIC;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1454) } else {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1455) /* We can only have one opening. */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1456) dev->maxtags = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1457) dev->openings = 1 - dev->active;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1458) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1459)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1460) switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1461) case AHD_DEV_Q_BASIC:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1462) case AHD_DEV_Q_TAGGED:
db5ed4dfd5dd0 (Christoph Hellwig 2014-11-13 15:08:42 +0100 1463) scsi_change_queue_depth(sdev,
2ecb204d07ac8 (Christoph Hellwig 2014-11-03 14:09:02 +0100 1464) dev->openings + dev->active);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1465) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1466) default:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1467) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1468) * We allow the OS to queue 2 untagged transactions to
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1469) * us at any time even though we can only execute them
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1470) * serially on the controller/device. This should
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1471) * remove some latency.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1472) */
db5ed4dfd5dd0 (Christoph Hellwig 2014-11-13 15:08:42 +0100 1473) scsi_change_queue_depth(sdev, 1);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1474) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1475) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1476) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1477)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1478) int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1479) ahd_platform_abort_scbs(struct ahd_softc *ahd, int target, char channel,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1480) int lun, u_int tag, role_t role, uint32_t status)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1481) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1482) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1483) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1484)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1485) static u_int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1486) ahd_linux_user_tagdepth(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1487) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1488) static int warned_user;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1489) u_int tags;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1490)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1491) tags = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1492) if ((ahd->user_discenable & devinfo->target_mask) != 0) {
6391a11375de5 (Tobias Klauser 2006-06-08 22:23:48 -0700 1493) if (ahd->unit >= ARRAY_SIZE(aic79xx_tag_info)) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1494)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1495) if (warned_user == 0) {
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1496) printk(KERN_WARNING
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1497) "aic79xx: WARNING: Insufficient tag_info instances\n"
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1498) "aic79xx: for installed controllers. Using defaults\n"
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1499) "aic79xx: Please update the aic79xx_tag_info array in\n"
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1500) "aic79xx: the aic79xx_osm.c source file.\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1501) warned_user++;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1502) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1503) tags = AHD_MAX_QUEUE;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1504) } else {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1505) adapter_tag_info_t *tag_info;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1506)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1507) tag_info = &aic79xx_tag_info[ahd->unit];
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1508) tags = tag_info->tag_commands[devinfo->target_offset];
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1509) if (tags > AHD_MAX_QUEUE)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1510) tags = AHD_MAX_QUEUE;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1511) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1512) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1513) return (tags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1514) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1515)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1516) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1517) * Determines the queue depth for a given device.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1518) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1519) static void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1520) ahd_linux_device_queue_depth(struct scsi_device *sdev)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1521) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1522) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1523) u_int tags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1524) struct ahd_softc *ahd = *((struct ahd_softc **)sdev->host->hostdata);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1525)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1526) ahd_compile_devinfo(&devinfo,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1527) ahd->our_id,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1528) sdev->sdev_target->id, sdev->lun,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1529) sdev->sdev_target->channel == 0 ? 'A' : 'B',
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1530) ROLE_INITIATOR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1531) tags = ahd_linux_user_tagdepth(ahd, &devinfo);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1532) if (tags != 0 && sdev->tagged_supported != 0) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1533)
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 1534) ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_TAGGED);
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 1535) ahd_send_async(ahd, devinfo.channel, devinfo.target,
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 1536) devinfo.lun, AC_TRANSFER_NEG);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1537) ahd_print_devinfo(ahd, &devinfo);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1538) printk("Tagged Queuing enabled. Depth %d\n", tags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1539) } else {
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 1540) ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_NONE);
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 1541) ahd_send_async(ahd, devinfo.channel, devinfo.target,
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 1542) devinfo.lun, AC_TRANSFER_NEG);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1543) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1544) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1545)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1546) static int
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1547) ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1548) struct scsi_cmnd *cmd)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1549) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1550) struct scb *scb;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1551) struct hardware_scb *hscb;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1552) struct ahd_initiator_tinfo *tinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1553) struct ahd_tmode_tstate *tstate;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1554) u_int col_idx;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1555) uint16_t mask;
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 1556) unsigned long flags;
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 1557) int nseg;
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 1558)
2505873afe510 (FUJITA Tomonori 2008-03-09 22:50:40 +0900 1559) nseg = scsi_dma_map(cmd);
2505873afe510 (FUJITA Tomonori 2008-03-09 22:50:40 +0900 1560) if (nseg < 0)
2505873afe510 (FUJITA Tomonori 2008-03-09 22:50:40 +0900 1561) return SCSI_MLQUEUE_HOST_BUSY;
2505873afe510 (FUJITA Tomonori 2008-03-09 22:50:40 +0900 1562)
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 1563) ahd_lock(ahd, &flags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1564)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1565) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1566) * Get an scb to use.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1567) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1568) tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1569) cmd->device->id, &tstate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1570) if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) == 0
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1571) || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1572) col_idx = AHD_NEVER_COL_IDX;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1573) } else {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1574) col_idx = AHD_BUILD_COL_IDX(cmd->device->id,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1575) cmd->device->lun);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1576) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1577) if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1578) ahd->flags |= AHD_RESOURCE_SHORTAGE;
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 1579) ahd_unlock(ahd, &flags);
2505873afe510 (FUJITA Tomonori 2008-03-09 22:50:40 +0900 1580) scsi_dma_unmap(cmd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1581) return SCSI_MLQUEUE_HOST_BUSY;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1582) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1583)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1584) scb->io_ctx = cmd;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1585) scb->platform_data->dev = dev;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1586) hscb = scb->hscb;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1587) cmd->host_scribble = (char *)scb;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1588)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1589) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1590) * Fill out basics of the HSCB.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1591) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1592) hscb->control = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1593) hscb->scsiid = BUILD_SCSIID(ahd, cmd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1594) hscb->lun = cmd->device->lun;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1595) scb->hscb->task_management = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1596) mask = SCB_GET_TARGET_MASK(ahd, scb);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1597)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1598) if ((ahd->user_discenable & mask) != 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1599) hscb->control |= DISCENB;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1600)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1601) if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1602) scb->flags |= SCB_PACKETIZED;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1603)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1604) if ((tstate->auto_negotiate & mask) != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1605) scb->flags |= SCB_AUTO_NEGOTIATE;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1606) scb->hscb->control |= MK_MESSAGE;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1607) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1608)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1609) if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1610) if (dev->commands_since_idle_or_otag == AHD_OTAG_THRESH
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1611) && (dev->flags & AHD_DEV_Q_TAGGED) != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1612) hscb->control |= MSG_ORDERED_TASK;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1613) dev->commands_since_idle_or_otag = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1614) } else {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1615) hscb->control |= MSG_SIMPLE_TASK;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1616) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1617) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1618)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1619) hscb->cdb_len = cmd->cmd_len;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1620) memcpy(hscb->shared_data.idata.cdb, cmd->cmnd, hscb->cdb_len);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1621)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1622) scb->platform_data->xfer_len = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1623) ahd_set_residual(scb, 0);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1624) ahd_set_sense_residual(scb, 0);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1625) scb->sg_count = 0;
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 1626)
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 1627) if (nseg > 0) {
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 1628) void *sg = scb->sg_list;
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 1629) struct scatterlist *cur_seg;
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 1630) int i;
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 1631)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1632) scb->platform_data->xfer_len = 0;
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 1633)
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 1634) scsi_for_each_sg(cmd, cur_seg, nseg, i) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1635) dma_addr_t addr;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1636) bus_size_t len;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1637)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1638) addr = sg_dma_address(cur_seg);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1639) len = sg_dma_len(cur_seg);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1640) scb->platform_data->xfer_len += len;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1641) sg = ahd_sg_setup(ahd, scb, sg, addr, len,
4c688fc7df618 (FUJITA Tomonori 2007-05-26 02:02:34 +0900 1642) i == (nseg - 1));
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1643) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1644) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1645)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1646) LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1647) dev->openings--;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1648) dev->active++;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1649) dev->commands_issued++;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1650)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1651) if ((dev->flags & AHD_DEV_PERIODIC_OTAG) != 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1652) dev->commands_since_idle_or_otag++;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1653) scb->flags |= SCB_ACTIVE;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1654) ahd_queue_scb(ahd, scb);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1655)
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 1656) ahd_unlock(ahd, &flags);
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 1657)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1658) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1659) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1660)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1661) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1662) * SCSI controller interrupt handler.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1663) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1664) irqreturn_t
7d12e780e003f (David Howells 2006-10-05 14:55:46 +0100 1665) ahd_linux_isr(int irq, void *dev_id)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1666) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1667) struct ahd_softc *ahd;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1668) u_long flags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1669) int ours;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1670)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1671) ahd = (struct ahd_softc *) dev_id;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1672) ahd_lock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1673) ours = ahd_intr(ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1674) ahd_unlock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1675) return IRQ_RETVAL(ours);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1676) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1677)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1678) void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1679) ahd_send_async(struct ahd_softc *ahd, char channel,
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 1680) u_int target, u_int lun, ac_code code)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1681) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1682) switch (code) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1683) case AC_TRANSFER_NEG:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1684) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1685) struct scsi_target *starget;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1686) struct ahd_initiator_tinfo *tinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1687) struct ahd_tmode_tstate *tstate;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1688) unsigned int target_ppr_options;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1689)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1690) BUG_ON(target == CAM_TARGET_WILDCARD);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1691)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1692) tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1693) target, &tstate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1694)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1695) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1696) * Don't bother reporting results while
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1697) * negotiations are still pending.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1698) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1699) if (tinfo->curr.period != tinfo->goal.period
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1700) || tinfo->curr.width != tinfo->goal.width
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1701) || tinfo->curr.offset != tinfo->goal.offset
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1702) || tinfo->curr.ppr_options != tinfo->goal.ppr_options)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1703) if (bootverbose == 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1704) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1705)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1706) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1707) * Don't bother reporting results that
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1708) * are identical to those last reported.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1709) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1710) starget = ahd->platform_data->starget[target];
fc789a9399485 (James Bottomley 2005-08-05 16:24:54 -0500 1711) if (starget == NULL)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1712) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1713)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1714) target_ppr_options =
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1715) (spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1716) + (spi_qas(starget) ? MSG_EXT_PPR_QAS_REQ : 0)
3f40d7d6eaade (James Bottomley 2005-08-03 13:25:10 -0500 1717) + (spi_iu(starget) ? MSG_EXT_PPR_IU_REQ : 0)
3f40d7d6eaade (James Bottomley 2005-08-03 13:25:10 -0500 1718) + (spi_rd_strm(starget) ? MSG_EXT_PPR_RD_STRM : 0)
3f40d7d6eaade (James Bottomley 2005-08-03 13:25:10 -0500 1719) + (spi_pcomp_en(starget) ? MSG_EXT_PPR_PCOMP_EN : 0)
3f40d7d6eaade (James Bottomley 2005-08-03 13:25:10 -0500 1720) + (spi_rti(starget) ? MSG_EXT_PPR_RTI : 0)
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 1721) + (spi_wr_flow(starget) ? MSG_EXT_PPR_WR_FLOW : 0)
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 1722) + (spi_hold_mcs(starget) ? MSG_EXT_PPR_HOLD_MCS : 0);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1723)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1724) if (tinfo->curr.period == spi_period(starget)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1725) && tinfo->curr.width == spi_width(starget)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1726) && tinfo->curr.offset == spi_offset(starget)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1727) && tinfo->curr.ppr_options == target_ppr_options)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1728) if (bootverbose == 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1729) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1730)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1731) spi_period(starget) = tinfo->curr.period;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1732) spi_width(starget) = tinfo->curr.width;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1733) spi_offset(starget) = tinfo->curr.offset;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 1734) spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ ? 1 : 0;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 1735) spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ ? 1 : 0;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 1736) spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ ? 1 : 0;
3f40d7d6eaade (James Bottomley 2005-08-03 13:25:10 -0500 1737) spi_rd_strm(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RD_STRM ? 1 : 0;
3f40d7d6eaade (James Bottomley 2005-08-03 13:25:10 -0500 1738) spi_pcomp_en(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_PCOMP_EN ? 1 : 0;
3f40d7d6eaade (James Bottomley 2005-08-03 13:25:10 -0500 1739) spi_rti(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RTI ? 1 : 0;
3f40d7d6eaade (James Bottomley 2005-08-03 13:25:10 -0500 1740) spi_wr_flow(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_WR_FLOW ? 1 : 0;
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 1741) spi_hold_mcs(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_HOLD_MCS ? 1 : 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1742) spi_display_xfer_agreement(starget);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1743) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1744) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1745) case AC_SENT_BDR:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1746) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1747) WARN_ON(lun != CAM_LUN_WILDCARD);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1748) scsi_report_device_reset(ahd->platform_data->host,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1749) channel - 'A', target);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1750) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1751) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1752) case AC_BUS_RESET:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1753) if (ahd->platform_data->host != NULL) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1754) scsi_report_bus_reset(ahd->platform_data->host,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1755) channel - 'A');
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1756) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1757) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1758) default:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1759) panic("ahd_send_async: Unexpected async event");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1760) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1761) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1762)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1763) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1764) * Calls the higher level scsi done function and frees the scb.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1765) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1766) void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1767) ahd_done(struct ahd_softc *ahd, struct scb *scb)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1768) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1769) struct scsi_cmnd *cmd;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1770) struct ahd_linux_device *dev;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1771)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1772) if ((scb->flags & SCB_ACTIVE) == 0) {
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1773) printk("SCB %d done'd twice\n", SCB_GET_TAG(scb));
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1774) ahd_dump_card_state(ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1775) panic("Stopping for safety");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1776) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1777) LIST_REMOVE(scb, pending_links);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1778) cmd = scb->io_ctx;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1779) dev = scb->platform_data->dev;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1780) dev->active--;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1781) dev->openings++;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1782) if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1783) cmd->result &= ~(CAM_DEV_QFRZN << 16);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1784) dev->qfrozen--;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1785) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1786) ahd_linux_unmap_scb(ahd, scb);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1787)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1788) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1789) * Guard against stale sense data.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1790) * The Linux mid-layer assumes that sense
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1791) * was retrieved anytime the first byte of
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1792) * the sense buffer looks "sane".
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1793) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1794) cmd->sense_buffer[0] = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1795) if (ahd_get_transaction_status(scb) == CAM_REQ_INPROG) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1796) uint32_t amount_xferred;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1797)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1798) amount_xferred =
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1799) ahd_get_transfer_length(scb) - ahd_get_residual(scb);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1800) if ((scb->flags & SCB_TRANSMISSION_ERROR) != 0) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1801) #ifdef AHD_DEBUG
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1802) if ((ahd_debug & AHD_SHOW_MISC) != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1803) ahd_print_path(ahd, scb);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1804) printk("Set CAM_UNCOR_PARITY\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1805) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1806) #endif
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1807) ahd_set_transaction_status(scb, CAM_UNCOR_PARITY);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1808) #ifdef AHD_REPORT_UNDERFLOWS
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1809) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1810) * This code is disabled by default as some
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1811) * clients of the SCSI system do not properly
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1812) * initialize the underflow parameter. This
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1813) * results in spurious termination of commands
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1814) * that complete as expected (e.g. underflow is
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1815) * allowed as command can return variable amounts
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1816) * of data.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1817) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1818) } else if (amount_xferred < scb->io_ctx->underflow) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1819) u_int i;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1820)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1821) ahd_print_path(ahd, scb);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1822) printk("CDB:");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1823) for (i = 0; i < scb->io_ctx->cmd_len; i++)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1824) printk(" 0x%x", scb->io_ctx->cmnd[i]);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1825) printk("\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1826) ahd_print_path(ahd, scb);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1827) printk("Saw underflow (%ld of %ld bytes). "
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1828) "Treated as error\n",
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1829) ahd_get_residual(scb),
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1830) ahd_get_transfer_length(scb));
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1831) ahd_set_transaction_status(scb, CAM_DATA_RUN_ERR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1832) #endif
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1833) } else {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1834) ahd_set_transaction_status(scb, CAM_REQ_CMP);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1835) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1836) } else if (ahd_get_transaction_status(scb) == CAM_SCSI_STATUS_ERROR) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1837) ahd_linux_handle_scsi_status(ahd, cmd->device, scb);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1838) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1839)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1840) if (dev->openings == 1
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1841) && ahd_get_transaction_status(scb) == CAM_REQ_CMP
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1842) && ahd_get_scsi_status(scb) != SCSI_STATUS_QUEUE_FULL)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1843) dev->tag_success_count++;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1844) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1845) * Some devices deal with temporary internal resource
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1846) * shortages by returning queue full. When the queue
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1847) * full occurrs, we throttle back. Slowly try to get
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1848) * back to our previous queue depth.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1849) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1850) if ((dev->openings + dev->active) < dev->maxtags
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1851) && dev->tag_success_count > AHD_TAG_SUCCESS_INTERVAL) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1852) dev->tag_success_count = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1853) dev->openings++;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1854) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1855)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1856) if (dev->active == 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1857) dev->commands_since_idle_or_otag = 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1858)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1859) if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1860) printk("Recovery SCB completes\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1861) if (ahd_get_transaction_status(scb) == CAM_BDR_SENT
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1862) || ahd_get_transaction_status(scb) == CAM_REQ_ABORTED)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1863) ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT);
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 1864)
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 1865) if (ahd->platform_data->eh_done)
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 1866) complete(ahd->platform_data->eh_done);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1867) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1868)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1869) ahd_free_scb(ahd, scb);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1870) ahd_linux_queue_cmd_complete(ahd, cmd);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1871) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1872)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1873) static void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1874) ahd_linux_handle_scsi_status(struct ahd_softc *ahd,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1875) struct scsi_device *sdev, struct scb *scb)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1876) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1877) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1878) struct ahd_linux_device *dev = scsi_transport_device_data(sdev);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1879)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1880) ahd_compile_devinfo(&devinfo,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1881) ahd->our_id,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1882) sdev->sdev_target->id, sdev->lun,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1883) sdev->sdev_target->channel == 0 ? 'A' : 'B',
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1884) ROLE_INITIATOR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1885)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1886) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1887) * We don't currently trust the mid-layer to
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1888) * properly deal with queue full or busy. So,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1889) * when one occurs, we tell the mid-layer to
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1890) * unconditionally requeue the command to us
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1891) * so that we can retry it ourselves. We also
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1892) * implement our own throttling mechanism so
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1893) * we don't clobber the device with too many
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1894) * commands.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1895) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1896) switch (ahd_get_scsi_status(scb)) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1897) default:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1898) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1899) case SCSI_STATUS_CHECK_COND:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1900) case SCSI_STATUS_CMD_TERMINATED:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1901) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1902) struct scsi_cmnd *cmd;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1903)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1904) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1905) * Copy sense information to the OS's cmd
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1906) * structure if it is available.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1907) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1908) cmd = scb->io_ctx;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1909) if ((scb->flags & (SCB_SENSE|SCB_PKT_SENSE)) != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1910) struct scsi_status_iu_header *siu;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1911) u_int sense_size;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1912) u_int sense_offset;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1913)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1914) if (scb->flags & SCB_SENSE) {
6d07cb71fdacc (Amol Lad 2006-10-20 14:48:40 -0700 1915) sense_size = min(sizeof(struct scsi_sense_data)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1916) - ahd_get_sense_residual(scb),
b80ca4f7ee36c (FUJITA Tomonori 2008-01-13 15:46:13 +0900 1917) (u_long)SCSI_SENSE_BUFFERSIZE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1918) sense_offset = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1919) } else {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1920) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1921) * Copy only the sense data into the provided
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1922) * buffer.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1923) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1924) siu = (struct scsi_status_iu_header *)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1925) scb->sense_data;
6d07cb71fdacc (Amol Lad 2006-10-20 14:48:40 -0700 1926) sense_size = min_t(size_t,
6d07cb71fdacc (Amol Lad 2006-10-20 14:48:40 -0700 1927) scsi_4btoul(siu->sense_length),
b80ca4f7ee36c (FUJITA Tomonori 2008-01-13 15:46:13 +0900 1928) SCSI_SENSE_BUFFERSIZE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1929) sense_offset = SIU_SENSE_OFFSET(siu);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1930) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1931)
b80ca4f7ee36c (FUJITA Tomonori 2008-01-13 15:46:13 +0900 1932) memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1933) memcpy(cmd->sense_buffer,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1934) ahd_get_sense_buf(ahd, scb)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1935) + sense_offset, sense_size);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1936) cmd->result |= (DRIVER_SENSE << 24);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1937)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1938) #ifdef AHD_DEBUG
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1939) if (ahd_debug & AHD_SHOW_SENSE) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1940) int i;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1941)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1942) printk("Copied %d bytes of sense data at %d:",
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1943) sense_size, sense_offset);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1944) for (i = 0; i < sense_size; i++) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1945) if ((i & 0xF) == 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1946) printk("\n");
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1947) printk("0x%x ", cmd->sense_buffer[i]);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1948) }
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1949) printk("\n");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1950) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1951) #endif
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1952) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1953) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1954) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1955) case SCSI_STATUS_QUEUE_FULL:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1956) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1957) * By the time the core driver has returned this
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1958) * command, all other commands that were queued
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1959) * to us but not the device have been returned.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1960) * This ensures that dev->active is equal to
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1961) * the number of commands actually queued to
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1962) * the device.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1963) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1964) dev->tag_success_count = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1965) if (dev->active != 0) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1966) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1967) * Drop our opening count to the number
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1968) * of commands currently outstanding.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1969) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1970) dev->openings = 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1971) #ifdef AHD_DEBUG
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1972) if ((ahd_debug & AHD_SHOW_QFULL) != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1973) ahd_print_path(ahd, scb);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1974) printk("Dropping tag count to %d\n",
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1975) dev->active);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1976) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1977) #endif
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1978) if (dev->active == dev->tags_on_last_queuefull) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1979)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1980) dev->last_queuefull_same_count++;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1981) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1982) * If we repeatedly see a queue full
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1983) * at the same queue depth, this
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1984) * device has a fixed number of tag
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1985) * slots. Lock in this tag depth
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1986) * so we stop seeing queue fulls from
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1987) * this device.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1988) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1989) if (dev->last_queuefull_same_count
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1990) == AHD_LOCK_TAGS_COUNT) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1991) dev->maxtags = dev->active;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1992) ahd_print_path(ahd, scb);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 1993) printk("Locking max tag count at %d\n",
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1994) dev->active);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1995) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1996) } else {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1997) dev->tags_on_last_queuefull = dev->active;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 1998) dev->last_queuefull_same_count = 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 1999) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2000) ahd_set_transaction_status(scb, CAM_REQUEUE_REQ);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2001) ahd_set_scsi_status(scb, SCSI_STATUS_OK);
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 2002) ahd_platform_set_tags(ahd, sdev, &devinfo,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2003) (dev->flags & AHD_DEV_Q_BASIC)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2004) ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2005) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2006) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2007) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2008) * Drop down to a single opening, and treat this
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2009) * as if the target returned BUSY SCSI status.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2010) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2011) dev->openings = 1;
f89d0a4e1d011 (Hannes Reinecke 2006-06-22 11:45:00 +0200 2012) ahd_platform_set_tags(ahd, sdev, &devinfo,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2013) (dev->flags & AHD_DEV_Q_BASIC)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2014) ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2015) ahd_set_scsi_status(scb, SCSI_STATUS_BUSY);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2016) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2017) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2018)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2019) static void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2020) ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2021) {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2022) int status;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2023) int new_status = DID_OK;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2024) int do_fallback = 0;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2025) int scsi_status;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2026)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2027) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2028) * Map CAM error codes into Linux Error codes. We
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2029) * avoid the conversion so that the DV code has the
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2030) * full error information available when making
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2031) * state change decisions.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2032) */
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2033)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2034) status = ahd_cmd_get_transaction_status(cmd);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2035) switch (status) {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2036) case CAM_REQ_INPROG:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2037) case CAM_REQ_CMP:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2038) new_status = DID_OK;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2039) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2040) case CAM_AUTOSENSE_FAIL:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2041) new_status = DID_ERROR;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2042) /* Fallthrough */
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2043) case CAM_SCSI_STATUS_ERROR:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2044) scsi_status = ahd_cmd_get_scsi_status(cmd);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2045)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2046) switch(scsi_status) {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2047) case SCSI_STATUS_CMD_TERMINATED:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2048) case SCSI_STATUS_CHECK_COND:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2049) if ((cmd->result >> 24) != DRIVER_SENSE) {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2050) do_fallback = 1;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2051) } else {
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2052) struct scsi_sense_data *sense;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2053)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2054) sense = (struct scsi_sense_data *)
c1c9ce52c8674 (FUJITA Tomonori 2008-01-27 12:41:09 +0900 2055) cmd->sense_buffer;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2056) if (sense->extra_len >= 5 &&
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2057) (sense->add_sense_code == 0x47
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2058) || sense->add_sense_code == 0x48))
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2059) do_fallback = 1;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2060) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2061) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2062) default:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2063) break;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2064) }
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2065) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2066) case CAM_REQ_ABORTED:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2067) new_status = DID_ABORT;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2068) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2069) case CAM_BUSY:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2070) new_status = DID_BUS_BUSY;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2071) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2072) case CAM_REQ_INVALID:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2073) case CAM_PATH_INVALID:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2074) new_status = DID_BAD_TARGET;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2075) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2076) case CAM_SEL_TIMEOUT:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2077) new_status = DID_NO_CONNECT;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2078) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2079) case CAM_SCSI_BUS_RESET:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2080) case CAM_BDR_SENT:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2081) new_status = DID_RESET;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2082) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2083) case CAM_UNCOR_PARITY:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2084) new_status = DID_PARITY;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2085) do_fallback = 1;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2086) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2087) case CAM_CMD_TIMEOUT:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2088) new_status = DID_TIME_OUT;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2089) do_fallback = 1;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2090) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2091) case CAM_REQ_CMP_ERR:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2092) case CAM_UNEXP_BUSFREE:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2093) case CAM_DATA_RUN_ERR:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2094) new_status = DID_ERROR;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2095) do_fallback = 1;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2096) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2097) case CAM_UA_ABORT:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2098) case CAM_NO_HBA:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2099) case CAM_SEQUENCE_FAIL:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2100) case CAM_CCB_LEN_ERR:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2101) case CAM_PROVIDE_FAIL:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2102) case CAM_REQ_TERMIO:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2103) case CAM_UNREC_HBA_ERROR:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2104) case CAM_REQ_TOO_BIG:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2105) new_status = DID_ERROR;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2106) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2107) case CAM_REQUEUE_REQ:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2108) new_status = DID_REQUEUE;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2109) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2110) default:
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2111) /* We should never get here */
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2112) new_status = DID_ERROR;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2113) break;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2114) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2115)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2116) if (do_fallback) {
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2117) printk("%s: device overrun (status %x) on %d:%d:%d\n",
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2118) ahd_name(ahd), status, cmd->device->channel,
9cb78c16f5dad (Hannes Reinecke 2014-06-25 15:27:36 +0200 2119) cmd->device->id, (u8)cmd->device->lun);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2120) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2121)
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2122) ahd_cmd_set_transaction_status(cmd, new_status);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2123)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2124) cmd->scsi_done(cmd);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2125) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2126)
e3e0ca5143d7a (Adrian Bunk 2007-03-26 21:59:29 -0800 2127) static void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2128) ahd_freeze_simq(struct ahd_softc *ahd)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2129) {
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2130) scsi_block_requests(ahd->platform_data->host);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2131) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2132)
e3e0ca5143d7a (Adrian Bunk 2007-03-26 21:59:29 -0800 2133) static void
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2134) ahd_release_simq(struct ahd_softc *ahd)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2135) {
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2136) scsi_unblock_requests(ahd->platform_data->host);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2137) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2138)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2139) static int
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2140) ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2141) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2142) struct ahd_softc *ahd;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2143) struct ahd_linux_device *dev;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2144) struct scb *pending_scb;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2145) u_int saved_scbptr;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2146) u_int active_scbptr;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2147) u_int last_phase;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2148) u_int saved_scsiid;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2149) u_int cdb_byte;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2150) int retval;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2151) int was_paused;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2152) int paused;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2153) int wait;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2154) int disconnected;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2155) ahd_mode_state saved_modes;
4065a413d7684 (Christoph Hellwig 2005-10-31 20:05:01 +0100 2156) unsigned long flags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2157)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2158) pending_scb = NULL;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2159) paused = FALSE;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2160) wait = FALSE;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2161) ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2162)
017560fca496f (Jeff Garzik 2005-10-24 18:04:36 -0400 2163) scmd_printk(KERN_INFO, cmd,
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2164) "Attempting to queue an ABORT message:");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2165)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2166) printk("CDB:");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2167) for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2168) printk(" 0x%x", cmd->cmnd[cdb_byte]);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2169) printk("\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2170)
4065a413d7684 (Christoph Hellwig 2005-10-31 20:05:01 +0100 2171) ahd_lock(ahd, &flags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2172)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2173) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2174) * First determine if we currently own this command.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2175) * Start by searching the device queue. If not found
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2176) * there, check the pending_scb list. If not found
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2177) * at all, and the system wanted us to just abort the
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2178) * command, return success.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2179) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2180) dev = scsi_transport_device_data(cmd->device);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2181)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2182) if (dev == NULL) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2183) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2184) * No target device for this command exists,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2185) * so we must not still own the command.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2186) */
017560fca496f (Jeff Garzik 2005-10-24 18:04:36 -0400 2187) scmd_printk(KERN_INFO, cmd, "Is not an active device\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2188) retval = SUCCESS;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2189) goto no_cmd;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2190) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2191)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2192) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2193) * See if we can find a matching cmd in the pending list.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2194) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2195) LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2196) if (pending_scb->io_ctx == cmd)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2197) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2198) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2199)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2200) if (pending_scb == NULL) {
017560fca496f (Jeff Garzik 2005-10-24 18:04:36 -0400 2201) scmd_printk(KERN_INFO, cmd, "Command not found\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2202) goto no_cmd;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2203) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2204)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2205) if ((pending_scb->flags & SCB_RECOVERY_SCB) != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2206) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2207) * We can't queue two recovery actions using the same SCB
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2208) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2209) retval = FAILED;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2210) goto done;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2211) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2212)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2213) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2214) * Ensure that the card doesn't do anything
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2215) * behind our back. Also make sure that we
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2216) * didn't "just" miss an interrupt that would
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2217) * affect this cmd.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2218) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2219) was_paused = ahd_is_paused(ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2220) ahd_pause_and_flushwork(ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2221) paused = TRUE;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2222)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2223) if ((pending_scb->flags & SCB_ACTIVE) == 0) {
017560fca496f (Jeff Garzik 2005-10-24 18:04:36 -0400 2224) scmd_printk(KERN_INFO, cmd, "Command already completed\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2225) goto no_cmd;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2226) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2227)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2228) printk("%s: At time of recovery, card was %spaused\n",
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2229) ahd_name(ahd), was_paused ? "" : "not ");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2230) ahd_dump_card_state(ahd);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2231)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2232) disconnected = TRUE;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2233) if (ahd_search_qinfifo(ahd, cmd->device->id,
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2234) cmd->device->channel + 'A',
9cb78c16f5dad (Hannes Reinecke 2014-06-25 15:27:36 +0200 2235) cmd->device->lun,
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2236) pending_scb->hscb->tag,
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2237) ROLE_INITIATOR, CAM_REQ_ABORTED,
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2238) SEARCH_COMPLETE) > 0) {
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2239) printk("%s:%d:%d:%d: Cmd aborted from QINFIFO\n",
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2240) ahd_name(ahd), cmd->device->channel,
9cb78c16f5dad (Hannes Reinecke 2014-06-25 15:27:36 +0200 2241) cmd->device->id, (u8)cmd->device->lun);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2242) retval = SUCCESS;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2243) goto done;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2244) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2245)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2246) saved_modes = ahd_save_modes(ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2247) ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2248) last_phase = ahd_inb(ahd, LASTPHASE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2249) saved_scbptr = ahd_get_scbptr(ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2250) active_scbptr = saved_scbptr;
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2251) if (disconnected && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2252) struct scb *bus_scb;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2253)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2254) bus_scb = ahd_lookup_scb(ahd, active_scbptr);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2255) if (bus_scb == pending_scb)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2256) disconnected = FALSE;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2257) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2258)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2259) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2260) * At this point, pending_scb is the scb associated with the
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2261) * passed in command. That command is currently active on the
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2262) * bus or is in the disconnected state.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2263) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2264) saved_scsiid = ahd_inb(ahd, SAVED_SCSIID);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2265) if (last_phase != P_BUSFREE
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2266) && SCB_GET_TAG(pending_scb) == active_scbptr) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2267)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2268) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2269) * We're active on the bus, so assert ATN
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2270) * and hope that the target responds.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2271) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2272) pending_scb = ahd_lookup_scb(ahd, active_scbptr);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2273) pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2274) ahd_outb(ahd, MSG_OUT, HOST_MSG);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2275) ahd_outb(ahd, SCSISIGO, last_phase|ATNO);
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2276) scmd_printk(KERN_INFO, cmd, "Device is active, asserting ATN\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2277) wait = TRUE;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2278) } else if (disconnected) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2279)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2280) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2281) * Actually re-queue this SCB in an attempt
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2282) * to select the device before it reconnects.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2283) */
6902f41610d63 (Hannes Reinecke 2006-03-08 12:58:16 +0100 2284) pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2285) ahd_set_scbptr(ahd, SCB_GET_TAG(pending_scb));
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2286) pending_scb->hscb->cdb_len = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2287) pending_scb->hscb->task_attribute = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2288) pending_scb->hscb->task_management = SIU_TASKMGMT_ABORT_TASK;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2289)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2290) if ((pending_scb->flags & SCB_PACKETIZED) != 0) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2291) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2292) * Mark the SCB has having an outstanding
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2293) * task management function. Should the command
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2294) * complete normally before the task management
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2295) * function can be sent, the host will be notified
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2296) * to abort our requeued SCB.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2297) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2298) ahd_outb(ahd, SCB_TASK_MANAGEMENT,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2299) pending_scb->hscb->task_management);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2300) } else {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2301) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2302) * If non-packetized, set the MK_MESSAGE control
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2303) * bit indicating that we desire to send a message.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2304) * We also set the disconnected flag since there is
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2305) * no guarantee that our SCB control byte matches
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2306) * the version on the card. We don't want the
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2307) * sequencer to abort the command thinking an
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2308) * unsolicited reselection occurred.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2309) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2310) pending_scb->hscb->control |= MK_MESSAGE|DISCONNECTED;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2311)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2312) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2313) * The sequencer will never re-reference the
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2314) * in-core SCB. To make sure we are notified
b71a8eb0fa64e (Uwe Kleine-König 2009-10-06 12:42:51 +0200 2315) * during reselection, set the MK_MESSAGE flag in
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2316) * the card's copy of the SCB.
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2317) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2318) ahd_outb(ahd, SCB_CONTROL,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2319) ahd_inb(ahd, SCB_CONTROL)|MK_MESSAGE);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2320) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2321)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2322) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2323) * Clear out any entries in the QINFIFO first
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2324) * so we are the next SCB for this target
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2325) * to run.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2326) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2327) ahd_search_qinfifo(ahd, cmd->device->id,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2328) cmd->device->channel + 'A', cmd->device->lun,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2329) SCB_LIST_NULL, ROLE_INITIATOR,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2330) CAM_REQUEUE_REQ, SEARCH_COMPLETE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2331) ahd_qinfifo_requeue_tail(ahd, pending_scb);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2332) ahd_set_scbptr(ahd, saved_scbptr);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2333) ahd_print_path(ahd, pending_scb);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2334) printk("Device is disconnected, re-queuing SCB\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2335) wait = TRUE;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2336) } else {
017560fca496f (Jeff Garzik 2005-10-24 18:04:36 -0400 2337) scmd_printk(KERN_INFO, cmd, "Unable to deliver message\n");
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2338) retval = FAILED;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2339) goto done;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2340) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2341)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2342) no_cmd:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2343) /*
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2344) * Our assumption is that if we don't have the command, no
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2345) * recovery action was required, so we return success. Again,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2346) * the semantics of the mid-layer recovery engine are not
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2347) * well defined, so this may change in time.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2348) */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2349) retval = SUCCESS;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2350) done:
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2351) if (paused)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2352) ahd_unpause(ahd);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2353) if (wait) {
6e9a4738c9fad (Peter Zijlstra 2006-09-30 23:28:10 -0700 2354) DECLARE_COMPLETION_ONSTACK(done);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2355)
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2356) ahd->platform_data->eh_done = &done;
4065a413d7684 (Christoph Hellwig 2005-10-31 20:05:01 +0100 2357) ahd_unlock(ahd, &flags);
4065a413d7684 (Christoph Hellwig 2005-10-31 20:05:01 +0100 2358)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2359) printk("%s: Recovery code sleeping\n", ahd_name(ahd));
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2360) if (!wait_for_completion_timeout(&done, 5 * HZ)) {
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2361) ahd_lock(ahd, &flags);
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2362) ahd->platform_data->eh_done = NULL;
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2363) ahd_unlock(ahd, &flags);
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2364) printk("%s: Timer Expired (active %d)\n",
11668bb673c41 (Hannes Reinecke 2006-01-12 12:08:06 +0100 2365) ahd_name(ahd), dev->active);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2366) retval = FAILED;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2367) }
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2368) printk("Recovery code awake\n");
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 2369) } else
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 2370) ahd_unlock(ahd, &flags);
eb221849540b7 (Hannes Reinecke 2006-01-30 16:10:31 +0100 2371)
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2372) if (retval != SUCCESS)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2373) printk("%s: Command abort returning 0x%x\n",
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2374) ahd_name(ahd), retval);
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2375)
7b22da38b64a3 (Hannes Reinecke 2006-03-08 12:56:14 +0100 2376) return retval;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2377) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2378)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2379) static void ahd_linux_set_width(struct scsi_target *starget, int width)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2380) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2381) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2382) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2383) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2384) unsigned long flags;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2385)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2386) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2387) starget->channel + 'A', ROLE_INITIATOR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2388) ahd_lock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2389) ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2390) ahd_unlock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2391) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2392)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2393) static void ahd_linux_set_period(struct scsi_target *starget, int period)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2394) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2395) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2396) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2397) struct ahd_tmode_tstate *tstate;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2398) struct ahd_initiator_tinfo *tinfo
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2399) = ahd_fetch_transinfo(ahd,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2400) starget->channel + 'A',
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2401) shost->this_id, starget->id, &tstate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2402) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2403) unsigned int ppr_options = tinfo->goal.ppr_options;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2404) unsigned int dt;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2405) unsigned long flags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2406) unsigned long offset = tinfo->goal.offset;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2407)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2408) #ifdef AHD_DEBUG
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2409) if ((ahd_debug & AHD_SHOW_DV) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2410) printk("%s: set period to %d\n", ahd_name(ahd), period);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2411) #endif
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2412) if (offset == 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2413) offset = MAX_OFFSET;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2414)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2415) if (period < 8)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2416) period = 8;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2417) if (period < 10) {
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2418) if (spi_max_width(starget)) {
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2419) ppr_options |= MSG_EXT_PPR_DT_REQ;
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2420) if (period == 8)
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2421) ppr_options |= MSG_EXT_PPR_IU_REQ;
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2422) } else
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2423) period = 10;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2424) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2425)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2426) dt = ppr_options & MSG_EXT_PPR_DT_REQ;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2427)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2428) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2429) starget->channel + 'A', ROLE_INITIATOR);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2430)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2431) /* all PPR requests apart from QAS require wide transfers */
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2432) if (ppr_options & ~MSG_EXT_PPR_QAS_REQ) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2433) if (spi_width(starget) == 0)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2434) ppr_options &= MSG_EXT_PPR_QAS_REQ;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2435) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2436)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2437) ahd_find_syncrate(ahd, &period, &ppr_options,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2438) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2439)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2440) ahd_lock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2441) ahd_set_syncrate(ahd, &devinfo, period, offset,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2442) ppr_options, AHD_TRANS_GOAL, FALSE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2443) ahd_unlock(ahd, &flags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2444) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2445)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2446) static void ahd_linux_set_offset(struct scsi_target *starget, int offset)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2447) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2448) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2449) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2450) struct ahd_tmode_tstate *tstate;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2451) struct ahd_initiator_tinfo *tinfo
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2452) = ahd_fetch_transinfo(ahd,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2453) starget->channel + 'A',
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2454) shost->this_id, starget->id, &tstate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2455) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2456) unsigned int ppr_options = 0;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2457) unsigned int period = 0;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2458) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2459) unsigned long flags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2460)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2461) #ifdef AHD_DEBUG
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2462) if ((ahd_debug & AHD_SHOW_DV) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2463) printk("%s: set offset to %d\n", ahd_name(ahd), offset);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2464) #endif
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2465)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2466) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2467) starget->channel + 'A', ROLE_INITIATOR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2468) if (offset != 0) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2469) period = tinfo->goal.period;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2470) ppr_options = tinfo->goal.ppr_options;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2471) ahd_find_syncrate(ahd, &period, &ppr_options,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2472) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2473) }
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2474)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2475) ahd_lock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2476) ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2477) AHD_TRANS_GOAL, FALSE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2478) ahd_unlock(ahd, &flags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2479) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2480)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2481) static void ahd_linux_set_dt(struct scsi_target *starget, int dt)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2482) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2483) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2484) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2485) struct ahd_tmode_tstate *tstate;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2486) struct ahd_initiator_tinfo *tinfo
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2487) = ahd_fetch_transinfo(ahd,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2488) starget->channel + 'A',
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2489) shost->this_id, starget->id, &tstate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2490) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2491) unsigned int ppr_options = tinfo->goal.ppr_options
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2492) & ~MSG_EXT_PPR_DT_REQ;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2493) unsigned int period = tinfo->goal.period;
52b5cfb355b2b (Hannes Reinecke 2005-08-04 09:16:59 +0200 2494) unsigned int width = tinfo->goal.width;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2495) unsigned long flags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2496)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2497) #ifdef AHD_DEBUG
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2498) if ((ahd_debug & AHD_SHOW_DV) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2499) printk("%s: %s DT\n", ahd_name(ahd),
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2500) dt ? "enabling" : "disabling");
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2501) #endif
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2502) if (dt && spi_max_width(starget)) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2503) ppr_options |= MSG_EXT_PPR_DT_REQ;
52b5cfb355b2b (Hannes Reinecke 2005-08-04 09:16:59 +0200 2504) if (!width)
52b5cfb355b2b (Hannes Reinecke 2005-08-04 09:16:59 +0200 2505) ahd_linux_set_width(starget, 1);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2506) } else {
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2507) if (period <= 9)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2508) period = 10; /* If resetting DT, period must be >= 25ns */
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2509) /* IU is invalid without DT set */
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2510) ppr_options &= ~MSG_EXT_PPR_IU_REQ;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2511) }
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2512) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2513) starget->channel + 'A', ROLE_INITIATOR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2514) ahd_find_syncrate(ahd, &period, &ppr_options,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2515) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2516)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2517) ahd_lock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2518) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2519) ppr_options, AHD_TRANS_GOAL, FALSE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2520) ahd_unlock(ahd, &flags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2521) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2522)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2523) static void ahd_linux_set_qas(struct scsi_target *starget, int qas)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2524) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2525) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2526) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2527) struct ahd_tmode_tstate *tstate;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2528) struct ahd_initiator_tinfo *tinfo
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2529) = ahd_fetch_transinfo(ahd,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2530) starget->channel + 'A',
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2531) shost->this_id, starget->id, &tstate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2532) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2533) unsigned int ppr_options = tinfo->goal.ppr_options
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2534) & ~MSG_EXT_PPR_QAS_REQ;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2535) unsigned int period = tinfo->goal.period;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2536) unsigned int dt;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2537) unsigned long flags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2538)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2539) #ifdef AHD_DEBUG
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2540) if ((ahd_debug & AHD_SHOW_DV) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2541) printk("%s: %s QAS\n", ahd_name(ahd),
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2542) qas ? "enabling" : "disabling");
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2543) #endif
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2544)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2545) if (qas) {
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2546) ppr_options |= MSG_EXT_PPR_QAS_REQ;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2547) }
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2548)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2549) dt = ppr_options & MSG_EXT_PPR_DT_REQ;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2550)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2551) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2552) starget->channel + 'A', ROLE_INITIATOR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2553) ahd_find_syncrate(ahd, &period, &ppr_options,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2554) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2555)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2556) ahd_lock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2557) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2558) ppr_options, AHD_TRANS_GOAL, FALSE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2559) ahd_unlock(ahd, &flags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2560) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2561)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2562) static void ahd_linux_set_iu(struct scsi_target *starget, int iu)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2563) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2564) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2565) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2566) struct ahd_tmode_tstate *tstate;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2567) struct ahd_initiator_tinfo *tinfo
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2568) = ahd_fetch_transinfo(ahd,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2569) starget->channel + 'A',
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2570) shost->this_id, starget->id, &tstate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2571) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2572) unsigned int ppr_options = tinfo->goal.ppr_options
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2573) & ~MSG_EXT_PPR_IU_REQ;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2574) unsigned int period = tinfo->goal.period;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2575) unsigned int dt;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2576) unsigned long flags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2577)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2578) #ifdef AHD_DEBUG
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2579) if ((ahd_debug & AHD_SHOW_DV) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2580) printk("%s: %s IU\n", ahd_name(ahd),
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2581) iu ? "enabling" : "disabling");
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2582) #endif
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2583)
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2584) if (iu && spi_max_width(starget)) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2585) ppr_options |= MSG_EXT_PPR_IU_REQ;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2586) ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2587) }
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2588)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2589) dt = ppr_options & MSG_EXT_PPR_DT_REQ;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2590)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2591) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2592) starget->channel + 'A', ROLE_INITIATOR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2593) ahd_find_syncrate(ahd, &period, &ppr_options,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2594) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2595)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2596) ahd_lock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2597) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2598) ppr_options, AHD_TRANS_GOAL, FALSE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2599) ahd_unlock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2600) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2601)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2602) static void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2603) {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2604) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2605) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2606) struct ahd_tmode_tstate *tstate;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2607) struct ahd_initiator_tinfo *tinfo
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2608) = ahd_fetch_transinfo(ahd,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2609) starget->channel + 'A',
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2610) shost->this_id, starget->id, &tstate);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2611) struct ahd_devinfo devinfo;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2612) unsigned int ppr_options = tinfo->goal.ppr_options
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2613) & ~MSG_EXT_PPR_RD_STRM;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2614) unsigned int period = tinfo->goal.period;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2615) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2616) unsigned long flags;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2617)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2618) #ifdef AHD_DEBUG
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2619) if ((ahd_debug & AHD_SHOW_DV) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2620) printk("%s: %s Read Streaming\n", ahd_name(ahd),
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2621) rdstrm ? "enabling" : "disabling");
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2622) #endif
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2623)
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2624) if (rdstrm && spi_max_width(starget))
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2625) ppr_options |= MSG_EXT_PPR_RD_STRM;
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2626)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2627) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2628) starget->channel + 'A', ROLE_INITIATOR);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2629) ahd_find_syncrate(ahd, &period, &ppr_options,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2630) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2631)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2632) ahd_lock(ahd, &flags);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2633) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2634) ppr_options, AHD_TRANS_GOAL, FALSE);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2635) ahd_unlock(ahd, &flags);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2636) }
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2637)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2638) static void ahd_linux_set_wr_flow(struct scsi_target *starget, int wrflow)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2639) {
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2640) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2641) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2642) struct ahd_tmode_tstate *tstate;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2643) struct ahd_initiator_tinfo *tinfo
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2644) = ahd_fetch_transinfo(ahd,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2645) starget->channel + 'A',
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2646) shost->this_id, starget->id, &tstate);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2647) struct ahd_devinfo devinfo;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2648) unsigned int ppr_options = tinfo->goal.ppr_options
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2649) & ~MSG_EXT_PPR_WR_FLOW;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2650) unsigned int period = tinfo->goal.period;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2651) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2652) unsigned long flags;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2653)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2654) #ifdef AHD_DEBUG
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2655) if ((ahd_debug & AHD_SHOW_DV) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2656) printk("%s: %s Write Flow Control\n", ahd_name(ahd),
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2657) wrflow ? "enabling" : "disabling");
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2658) #endif
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2659)
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2660) if (wrflow && spi_max_width(starget))
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2661) ppr_options |= MSG_EXT_PPR_WR_FLOW;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2662)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2663) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2664) starget->channel + 'A', ROLE_INITIATOR);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2665) ahd_find_syncrate(ahd, &period, &ppr_options,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2666) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2667)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2668) ahd_lock(ahd, &flags);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2669) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2670) ppr_options, AHD_TRANS_GOAL, FALSE);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2671) ahd_unlock(ahd, &flags);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2672) }
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2673)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2674) static void ahd_linux_set_rti(struct scsi_target *starget, int rti)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2675) {
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2676) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2677) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2678) struct ahd_tmode_tstate *tstate;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2679) struct ahd_initiator_tinfo *tinfo
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2680) = ahd_fetch_transinfo(ahd,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2681) starget->channel + 'A',
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2682) shost->this_id, starget->id, &tstate);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2683) struct ahd_devinfo devinfo;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2684) unsigned int ppr_options = tinfo->goal.ppr_options
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2685) & ~MSG_EXT_PPR_RTI;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2686) unsigned int period = tinfo->goal.period;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2687) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2688) unsigned long flags;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2689)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2690) if ((ahd->features & AHD_RTI) == 0) {
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2691) #ifdef AHD_DEBUG
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2692) if ((ahd_debug & AHD_SHOW_DV) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2693) printk("%s: RTI not available\n", ahd_name(ahd));
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2694) #endif
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2695) return;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2696) }
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2697)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2698) #ifdef AHD_DEBUG
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2699) if ((ahd_debug & AHD_SHOW_DV) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2700) printk("%s: %s RTI\n", ahd_name(ahd),
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2701) rti ? "enabling" : "disabling");
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2702) #endif
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2703)
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2704) if (rti && spi_max_width(starget))
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2705) ppr_options |= MSG_EXT_PPR_RTI;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2706)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2707) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2708) starget->channel + 'A', ROLE_INITIATOR);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2709) ahd_find_syncrate(ahd, &period, &ppr_options,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2710) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2711)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2712) ahd_lock(ahd, &flags);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2713) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2714) ppr_options, AHD_TRANS_GOAL, FALSE);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2715) ahd_unlock(ahd, &flags);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2716) }
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2717)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2718) static void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2719) {
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2720) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2721) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2722) struct ahd_tmode_tstate *tstate;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2723) struct ahd_initiator_tinfo *tinfo
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2724) = ahd_fetch_transinfo(ahd,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2725) starget->channel + 'A',
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2726) shost->this_id, starget->id, &tstate);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2727) struct ahd_devinfo devinfo;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2728) unsigned int ppr_options = tinfo->goal.ppr_options
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2729) & ~MSG_EXT_PPR_PCOMP_EN;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2730) unsigned int period = tinfo->goal.period;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2731) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2732) unsigned long flags;
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2733)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2734) #ifdef AHD_DEBUG
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2735) if ((ahd_debug & AHD_SHOW_DV) != 0)
48813cf989eb8 (Pekka Enberg 2010-07-14 13:12:57 +0300 2736) printk("%s: %s Precompensation\n", ahd_name(ahd),
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2737) pcomp ? "Enable" : "Disable");
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2738) #endif
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2739)
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2740) if (pcomp && spi_max_width(starget)) {
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2741) uint8_t precomp;
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2742)
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2743) if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) {
980b306a29772 (Denys Vlasenko 2008-04-25 04:36:01 +0200 2744) const struct ahd_linux_iocell_opts *iocell_opts;
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2745)
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2746) iocell_opts = &aic79xx_iocell_info[ahd->unit];
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2747) precomp = iocell_opts->precomp;
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2748) } else {
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2749) precomp = AIC79XX_DEFAULT_PRECOMP;
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2750) }
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2751) ppr_options |= MSG_EXT_PPR_PCOMP_EN;
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2752) AHD_SET_PRECOMP(ahd, precomp);
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2753) } else {
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2754) AHD_SET_PRECOMP(ahd, 0);
843822ad63188 (Hannes Reinecke 2006-10-23 15:24:23 +0200 2755) }
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2756)
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2757) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2758) starget->channel + 'A', ROLE_INITIATOR);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2759) ahd_find_syncrate(ahd, &period, &ppr_options,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2760) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2761)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2762) ahd_lock(ahd, &flags);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2763) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2764) ppr_options, AHD_TRANS_GOAL, FALSE);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2765) ahd_unlock(ahd, &flags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2766) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2767)
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2768) static void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold)
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2769) {
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2770) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2771) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2772) struct ahd_tmode_tstate *tstate;
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2773) struct ahd_initiator_tinfo *tinfo
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2774) = ahd_fetch_transinfo(ahd,
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2775) starget->channel + 'A',
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2776) shost->this_id, starget->id, &tstate);
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2777) struct ahd_devinfo devinfo;
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2778) unsigned int ppr_options = tinfo->goal.ppr_options
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2779) & ~MSG_EXT_PPR_HOLD_MCS;
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2780) unsigned int period = tinfo->goal.period;
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2781) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2782) unsigned long flags;
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2783)
0f82cb9211f80 (James Bottomley 2007-07-26 17:13:10 -0400 2784) if (hold && spi_max_width(starget))
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2785) ppr_options |= MSG_EXT_PPR_HOLD_MCS;
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2786)
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2787) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2788) starget->channel + 'A', ROLE_INITIATOR);
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2789) ahd_find_syncrate(ahd, &period, &ppr_options,
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2790) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2791)
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2792) ahd_lock(ahd, &flags);
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2793) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2794) ppr_options, AHD_TRANS_GOAL, FALSE);
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2795) ahd_unlock(ahd, &flags);
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2796) }
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2797)
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2798) static void ahd_linux_get_signalling(struct Scsi_Host *shost)
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2799) {
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2800) struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2801) unsigned long flags;
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2802) u8 mode;
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2803)
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2804) ahd_lock(ahd, &flags);
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2805) ahd_pause(ahd);
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2806) mode = ahd_inb(ahd, SBLKCTL);
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2807) ahd_unpause(ahd);
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2808) ahd_unlock(ahd, &flags);
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2809)
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2810) if (mode & ENAB40)
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2811) spi_signalling(shost) = SPI_SIGNAL_LVD;
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2812) else if (mode & ENAB20)
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2813) spi_signalling(shost) = SPI_SIGNAL_SE;
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2814) else
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2815) spi_signalling(shost) = SPI_SIGNAL_UNKNOWN;
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2816) }
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2817)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2818) static struct spi_function_template ahd_linux_transport_functions = {
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2819) .set_offset = ahd_linux_set_offset,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2820) .show_offset = 1,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2821) .set_period = ahd_linux_set_period,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2822) .show_period = 1,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2823) .set_width = ahd_linux_set_width,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2824) .show_width = 1,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2825) .set_dt = ahd_linux_set_dt,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2826) .show_dt = 1,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2827) .set_iu = ahd_linux_set_iu,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2828) .show_iu = 1,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2829) .set_qas = ahd_linux_set_qas,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2830) .show_qas = 1,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2831) .set_rd_strm = ahd_linux_set_rd_strm,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2832) .show_rd_strm = 1,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2833) .set_wr_flow = ahd_linux_set_wr_flow,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2834) .show_wr_flow = 1,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2835) .set_rti = ahd_linux_set_rti,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2836) .show_rti = 1,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2837) .set_pcomp_en = ahd_linux_set_pcomp_en,
a4b53a11806f5 (Hannes Reinecke 2005-08-01 09:52:56 +0200 2838) .show_pcomp_en = 1,
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2839) .set_hold_mcs = ahd_linux_set_hold_mcs,
88ff29a4a5a8c (James Bottomley 2005-08-03 15:59:04 -0500 2840) .show_hold_mcs = 1,
d6b9ccbbeb625 (Hannes Reinecke 2006-10-23 15:26:37 +0200 2841) .get_signalling = ahd_linux_get_signalling,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2842) };
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2843)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2844) static int __init
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2845) ahd_linux_init(void)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2846) {
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2847) int error = 0;
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2848)
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2849) /*
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2850) * If we've been passed any parameters, process them now.
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2851) */
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2852) if (aic79xx)
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2853) aic79xx_setup(aic79xx);
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2854)
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2855) ahd_linux_transport_template =
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2856) spi_attach_transport(&ahd_linux_transport_functions);
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2857) if (!ahd_linux_transport_template)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2858) return -ENODEV;
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2859)
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2860) scsi_transport_reserve_device(ahd_linux_transport_template,
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2861) sizeof(struct ahd_linux_device));
a80b3424d9fde (James Bottomley 2005-08-08 19:06:50 -0500 2862)
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2863) error = ahd_linux_pci_init();
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2864) if (error)
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2865) spi_release_transport(ahd_linux_transport_template);
85a46523ff68a (Christoph Hellwig 2005-08-15 13:28:46 +0200 2866) return error;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2867) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2868)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2869) static void __exit
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2870) ahd_linux_exit(void)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2871) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2872) ahd_linux_pci_exit();
73a2546210077 (Hannes Reinecke 2005-07-22 16:44:04 +0200 2873) spi_release_transport(ahd_linux_transport_template);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2874) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2875)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2876) module_init(ahd_linux_init);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2877) module_exit(ahd_linux_exit);