^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Adaptec AIC79xx device driver for Linux.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.c#171 $
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * --------------------------------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 1994-2000 Justin T. Gibbs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (c) 1997-1999 Doug Ledford
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright (c) 2000-2003 Adaptec Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Redistribution and use in source and binary forms, with or without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * modification, are permitted provided that the following conditions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * are met:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * 1. Redistributions of source code must retain the above copyright
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * notice, this list of conditions, and the following disclaimer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * without modification.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * 2. Redistributions in binary form must reproduce at minimum a disclaimer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * substantially similar to the "NO WARRANTY" disclaimer below
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * ("Disclaimer") and any redistribution must be conditioned upon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * including a substantially similar Disclaimer requirement for further
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * binary redistribution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * 3. Neither the names of the above-listed copyright holders nor the names
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * of any contributors may be used to endorse or promote products derived
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * from this software without specific prior written permission.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * Alternatively, this software may be distributed under the terms of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * GNU General Public License ("GPL") version 2 as published by the Free
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * Software Foundation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * NO WARRANTY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * POSSIBILITY OF SUCH DAMAGES.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #include "aic79xx_osm.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #include "aic79xx_inline.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #include <scsi/scsicam.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static struct scsi_transport_template *ahd_linux_transport_template = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #include <linux/init.h> /* __setup */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #include <linux/mm.h> /* For fetching system memory size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #include <linux/blkdev.h> /* For block_size() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #include <linux/delay.h> /* For ssleep/msleep */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * Bucket size for counting good commands in between bad ones.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define AHD_LINUX_ERR_THRESH 1000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * Set this to the delay in seconds after SCSI bus reset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * Note, we honor this only for the initial bus reset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * The scsi error recovery code performs its own bus settle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * delay handling for error recovery actions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #ifdef CONFIG_AIC79XX_RESET_DELAY_MS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define AIC79XX_RESET_DELAY CONFIG_AIC79XX_RESET_DELAY_MS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #define AIC79XX_RESET_DELAY 5000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) * To change the default number of tagged transactions allowed per-device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * add a line to the lilo.conf file like:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * append="aic79xx=verbose,tag_info:{{32,32,32,32},{32,32,32,32}}"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * which will result in the first four devices on the first two
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * controllers being set to a tagged queue depth of 32.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * The tag_commands is an array of 16 to allow for wide and twin adapters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * Twin adapters will use indexes 0-7 for channel 0, and indexes 8-15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * for channel 1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) uint16_t tag_commands[16]; /* Allow for wide/twin adapters. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) } adapter_tag_info_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * Modify this as you see fit for your system.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * 0 tagged queuing disabled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * 1 <= n <= 253 n == max tags ever dispatched.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * The driver will throttle the number of commands dispatched to a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * device if it returns queue full. For devices with a fixed maximum
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * queue depth, the driver will eventually determine this depth and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * lock it in (a console message is printed to indicate that a lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * has occurred). On some devices, queue full is returned for a temporary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * resource shortage. These devices will return queue full at varying
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) * depths. The driver will throttle back when the queue fulls occur and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * attempt to slowly increase the depth over time as the device recovers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * from the resource shortage.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) * In this example, the first line will disable tagged queueing for all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * the devices on the first probed aic79xx adapter.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * The second line enables tagged queueing with 4 commands/LUN for IDs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) * (0, 2-11, 13-15), disables tagged queueing for ID 12, and tells the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * driver to attempt to use up to 64 tags for ID 1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * The third line is the same as the first line.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * The fourth line disables tagged queueing for devices 0 and 3. It
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) * enables tagged queueing for the other IDs, with 16 commands/LUN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * for IDs 1 and 4, 127 commands/LUN for ID 8, and 4 commands/LUN for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * IDs 2, 5-7, and 9-15.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * NOTE: The below structure is for reference only, the actual structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * to modify in order to change things is just below this comment block.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) adapter_tag_info_t aic79xx_tag_info[] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {{4, 64, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 4, 4, 4}},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) {{0, 16, 4, 0, 16, 4, 4, 4, 127, 4, 4, 4, 4, 4, 4, 4}}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) #ifdef CONFIG_AIC79XX_CMDS_PER_DEVICE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) #define AIC79XX_CMDS_PER_DEVICE CONFIG_AIC79XX_CMDS_PER_DEVICE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) #define AIC79XX_CMDS_PER_DEVICE AHD_MAX_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #define AIC79XX_CONFIGED_TAG_COMMANDS { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) * By default, use the number of commands specified by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) * the users kernel configuration.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static adapter_tag_info_t aic79xx_tag_info[] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) {AIC79XX_CONFIGED_TAG_COMMANDS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) {AIC79XX_CONFIGED_TAG_COMMANDS}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) * The I/O cell on the chip is very configurable in respect to its analog
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * characteristics. Set the defaults here; they can be overriden with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * the proper insmod parameters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct ahd_linux_iocell_opts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) uint8_t precomp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) uint8_t slewrate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) uint8_t amplitude;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) #define AIC79XX_DEFAULT_PRECOMP 0xFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) #define AIC79XX_DEFAULT_SLEWRATE 0xFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) #define AIC79XX_DEFAULT_AMPLITUDE 0xFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) #define AIC79XX_DEFAULT_IOOPTS \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) AIC79XX_DEFAULT_PRECOMP, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) AIC79XX_DEFAULT_SLEWRATE, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) AIC79XX_DEFAULT_AMPLITUDE \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) #define AIC79XX_PRECOMP_INDEX 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) #define AIC79XX_SLEWRATE_INDEX 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) #define AIC79XX_AMPLITUDE_INDEX 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) static const struct ahd_linux_iocell_opts aic79xx_iocell_info[] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) AIC79XX_DEFAULT_IOOPTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) AIC79XX_DEFAULT_IOOPTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) * There should be a specific return value for this in scsi.h, but
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) * it seems that most drivers ignore it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) #define DID_UNDERFLOW DID_ERROR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) ahd_print_path(struct ahd_softc *ahd, struct scb *scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) printk("(scsi%d:%c:%d:%d): ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) ahd->platform_data->host->host_no,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) scb != NULL ? SCB_GET_CHANNEL(ahd, scb) : 'X',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) scb != NULL ? SCB_GET_TARGET(ahd, scb) : -1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) scb != NULL ? SCB_GET_LUN(scb) : -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) * XXX - these options apply unilaterally to _all_ adapters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) * cards in the system. This should be fixed. Exceptions to this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) * rule are noted in the comments.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) * Skip the scsi bus reset. Non 0 make us skip the reset at startup. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) * has no effect on any later resets that might occur due to things like
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) * SCSI bus timeouts.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) static uint32_t aic79xx_no_reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) * Should we force EXTENDED translation on a controller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) * 0 == Use whatever is in the SEEPROM or default to off
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) * 1 == Use whatever is in the SEEPROM or default to on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) static uint32_t aic79xx_extended;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) * PCI bus parity checking of the Adaptec controllers. This is somewhat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) * dubious at best. To my knowledge, this option has never actually
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) * solved a PCI parity problem, but on certain machines with broken PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) * chipset configurations, it can generate tons of false error messages.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) * It's included in the driver for completeness.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) * 0 = Shut off PCI parity check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * non-0 = Enable PCI parity check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) * NOTE: you can't actually pass -1 on the lilo prompt. So, to set this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) * variable to -1 you would actually want to simply pass the variable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) * name without a number. That will invert the 0 which will result in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) * -1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) static uint32_t aic79xx_pci_parity = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) * There are lots of broken chipsets in the world. Some of them will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * violate the PCI spec when we issue byte sized memory writes to our
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * controller. I/O mapped register access, if allowed by the given
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * platform, will work in almost all cases.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) uint32_t aic79xx_allow_memio = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) * So that we can set how long each device is given as a selection timeout.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * The table of values goes like this:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) * 0 - 256ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) * 1 - 128ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) * 2 - 64ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) * 3 - 32ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) * We default to 256ms because some older devices need a longer time
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) * to respond to initial selection.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) static uint32_t aic79xx_seltime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) * Certain devices do not perform any aging on commands. Should the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) * device be saturated by commands in one portion of the disk, it is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) * possible for transactions on far away sectors to never be serviced.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) * To handle these devices, we can periodically send an ordered tag to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) * force all outstanding transactions to be serviced prior to a new
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * transaction.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) static uint32_t aic79xx_periodic_otag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) /* Some storage boxes are using an LSI chip which has a bug making it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * impossible to use aic79xx Rev B chip in 320 speeds. The following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * storage boxes have been reported to be buggy:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * EonStor 3U 16-Bay: U16U-G3A3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * EonStor 2U 12-Bay: U12U-G3A3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * SentinelRAID: 2500F R5 / R6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) * SentinelRAID: 2500F R1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * SentinelRAID: 2500F/1500F
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * SentinelRAID: 150F
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) * To get around this LSI bug, you can set your board to 160 mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * or you can enable the SLOWCRC bit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) uint32_t aic79xx_slowcrc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) * Module information and settable options.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) static char *aic79xx = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) MODULE_AUTHOR("Maintainer: Hannes Reinecke <hare@suse.de>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) MODULE_DESCRIPTION("Adaptec AIC790X U320 SCSI Host Bus Adapter driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) MODULE_LICENSE("Dual BSD/GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) MODULE_VERSION(AIC79XX_DRIVER_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) module_param(aic79xx, charp, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) MODULE_PARM_DESC(aic79xx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) "period-delimited options string:\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) " verbose Enable verbose/diagnostic logging\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) " allow_memio Allow device registers to be memory mapped\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) " debug Bitmask of debug values to enable\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) " no_reset Suppress initial bus resets\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) " extended Enable extended geometry on all controllers\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) " periodic_otag Send an ordered tagged transaction\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) " periodically to prevent tag starvation.\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) " This may be required by some older disk\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) " or drives/RAID arrays.\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) " tag_info:<tag_str> Set per-target tag depth\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) " global_tag_depth:<int> Global tag depth for all targets on all buses\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) " slewrate:<slewrate_list>Set the signal slew rate (0-15).\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) " precomp:<pcomp_list> Set the signal precompensation (0-7).\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) " amplitude:<int> Set the signal amplitude (0-7).\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) " seltime:<int> Selection Timeout:\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) " (0/256ms,1/128ms,2/64ms,3/32ms)\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) " slowcrc Turn on the SLOWCRC bit (Rev B only)\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) "\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) " Sample modprobe configuration file:\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) " # Enable verbose logging\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) " # Set tag depth on Controller 2/Target 2 to 10 tags\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) " # Shorten the selection timeout to 128ms\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) "\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) " options aic79xx 'aic79xx=verbose.tag_info:{{}.{}.{..10}}.seltime:1'\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) static void ahd_linux_handle_scsi_status(struct ahd_softc *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) struct scsi_device *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) struct scb *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) static void ahd_linux_queue_cmd_complete(struct ahd_softc *ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) struct scsi_cmnd *cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) static int ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) static void ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) static u_int ahd_linux_user_tagdepth(struct ahd_softc *ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) struct ahd_devinfo *devinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) static void ahd_linux_device_queue_depth(struct scsi_device *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) static int ahd_linux_run_command(struct ahd_softc*,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) struct ahd_linux_device *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct scsi_cmnd *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) static void ahd_linux_setup_tag_info_global(char *p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) static int aic79xx_setup(char *c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) static void ahd_freeze_simq(struct ahd_softc *ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) static void ahd_release_simq(struct ahd_softc *ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) static int ahd_linux_unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) /************************** OS Utility Wrappers *******************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) void ahd_delay(long);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) ahd_delay(long usec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) * udelay on Linux can have problems for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) * multi-millisecond waits. Wait at most
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) * 1024us per call.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) while (usec > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) udelay(usec % 1024);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) usec -= 1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) /***************************** Low Level I/O **********************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) uint8_t ahd_inb(struct ahd_softc * ahd, long port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) void ahd_outw_atomic(struct ahd_softc * ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) long port, uint16_t val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) void ahd_outsb(struct ahd_softc * ahd, long port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) uint8_t *, int count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) void ahd_insb(struct ahd_softc * ahd, long port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) uint8_t *, int count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) uint8_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) ahd_inb(struct ahd_softc * ahd, long port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) uint8_t x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) if (ahd->tags[0] == BUS_SPACE_MEMIO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) x = readb(ahd->bshs[0].maddr + port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) mb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) return (x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) #if 0 /* unused */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) static uint16_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) ahd_inw_atomic(struct ahd_softc * ahd, long port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) uint8_t x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (ahd->tags[0] == BUS_SPACE_MEMIO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) x = readw(ahd->bshs[0].maddr + port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) mb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) return (x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) if (ahd->tags[0] == BUS_SPACE_MEMIO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) writeb(val, ahd->bshs[0].maddr + port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) mb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) if (ahd->tags[0] == BUS_SPACE_MEMIO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) writew(val, ahd->bshs[0].maddr + port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) mb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) * There is probably a more efficient way to do this on Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) * but we don't use this for anything speed critical and this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) * should work.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) for (i = 0; i < count; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) ahd_outb(ahd, port, *array++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) * There is probably a more efficient way to do this on Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) * but we don't use this for anything speed critical and this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) * should work.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) for (i = 0; i < count; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) *array++ = ahd_inb(ahd, port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) /******************************* PCI Routines *********************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) uint32_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) switch (width) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) uint8_t retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) pci_read_config_byte(pci, reg, &retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) return (retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) uint16_t retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) pci_read_config_word(pci, reg, &retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) return (retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) case 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) uint32_t retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) pci_read_config_dword(pci, reg, &retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) return (retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) panic("ahd_pci_read_config: Read size too big");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) /* NOTREACHED */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) return (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) switch (width) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) pci_write_config_byte(pci, reg, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) pci_write_config_word(pci, reg, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) case 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) pci_write_config_dword(pci, reg, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) panic("ahd_pci_write_config: Write size too big");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) /* NOTREACHED */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) /****************************** Inlines ***************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) static void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) struct scsi_cmnd *cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) cmd = scb->io_ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) scsi_dma_unmap(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) /******************************** Macros **************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) #define BUILD_SCSIID(ahd, cmd) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) (((scmd_id(cmd) << TID_SHIFT) & TID) | (ahd)->our_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) * Return a string describing the driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) static const char *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) ahd_linux_info(struct Scsi_Host *host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) static char buffer[512];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) char ahd_info[256];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) char *bp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) struct ahd_softc *ahd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) bp = &buffer[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) ahd = *(struct ahd_softc **)host->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) memset(bp, 0, sizeof(buffer));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev " AIC79XX_DRIVER_VERSION "\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) " <");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) strcat(bp, ahd->description);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) strcat(bp, ">\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) " ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) ahd_controller_info(ahd, ahd_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) strcat(bp, ahd_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) return (bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) * Queue an SCB to the controller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) ahd_linux_queue_lck(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) struct ahd_softc *ahd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) struct ahd_linux_device *dev = scsi_transport_device_data(cmd->device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) int rtn = SCSI_MLQUEUE_HOST_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) cmd->scsi_done = scsi_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) cmd->result = CAM_REQ_INPROG << 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) rtn = ahd_linux_run_command(ahd, dev, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) return rtn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) static DEF_SCSI_QCMD(ahd_linux_queue)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) static struct scsi_target **
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) ahd_linux_target_in_softc(struct scsi_target *starget)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) struct ahd_softc *ahd =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) unsigned int target_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) target_offset = starget->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) if (starget->channel != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) target_offset += 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) return &ahd->platform_data->starget[target_offset];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) ahd_linux_target_alloc(struct scsi_target *starget)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) struct ahd_softc *ahd =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) struct seeprom_config *sc = ahd->seep_config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) struct ahd_initiator_tinfo *tinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) char channel = starget->channel + 'A';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) BUG_ON(*ahd_targp != NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) *ahd_targp = starget;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) if (sc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) int flags = sc->device_flags[starget->id];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) if ((flags & CFPACKETIZED) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) /* don't negotiate packetized (IU) transfers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) spi_max_iu(starget) = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) if ((ahd->features & AHD_RTI) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) spi_rti(starget) = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) if ((flags & CFQAS) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) spi_max_qas(starget) = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) /* Transinfo values have been set to BIOS settings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) spi_min_period(starget) = tinfo->user.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) spi_max_offset(starget) = tinfo->user.offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) ahd_compile_devinfo(&devinfo, ahd->our_id, starget->id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) CAM_LUN_WILDCARD, channel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) ahd_set_syncrate(ahd, &devinfo, 0, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) AHD_TRANS_GOAL, /*paused*/FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) AHD_TRANS_GOAL, /*paused*/FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) ahd_linux_target_destroy(struct scsi_target *starget)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) *ahd_targp = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) ahd_linux_slave_alloc(struct scsi_device *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) struct ahd_softc *ahd =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) *((struct ahd_softc **)sdev->host->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) struct ahd_linux_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) if (bootverbose)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) printk("%s: Slave Alloc %d\n", ahd_name(ahd), sdev->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) dev = scsi_transport_device_data(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) memset(dev, 0, sizeof(*dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) * We start out life using untagged
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) * transactions of which we allow one.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) dev->openings = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) * Set maxtags to 0. This will be changed if we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) * later determine that we are dealing with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) * a tagged queuing capable device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) dev->maxtags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) return (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) ahd_linux_slave_configure(struct scsi_device *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) if (bootverbose)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) sdev_printk(KERN_INFO, sdev, "Slave Configure\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) ahd_linux_device_queue_depth(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) /* Initial Domain Validation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) if (!spi_initial_dv(sdev->sdev_target))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) spi_dv_device(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) #if defined(__i386__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) * Return the disk geometry for the given SCSI device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) ahd_linux_biosparam(struct scsi_device *sdev, struct block_device *bdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) sector_t capacity, int geom[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) int heads;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) int sectors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) int cylinders;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) int extended;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) struct ahd_softc *ahd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) ahd = *((struct ahd_softc **)sdev->host->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) if (scsi_partsize(bdev, capacity, geom))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) heads = 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) sectors = 32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) cylinders = aic_sector_div(capacity, heads, sectors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) if (aic79xx_extended != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) extended = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) extended = (ahd->flags & AHD_EXTENDED_TRANS_A) != 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) if (extended && cylinders >= 1024) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) heads = 255;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) sectors = 63;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) cylinders = aic_sector_div(capacity, heads, sectors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) geom[0] = heads;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) geom[1] = sectors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) geom[2] = cylinders;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) return (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) * Abort the current SCSI command(s).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) ahd_linux_abort(struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) error = ahd_linux_queue_abort_cmd(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) * Attempt to send a target reset message to the device that timed out.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) ahd_linux_dev_reset(struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) struct ahd_softc *ahd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) struct ahd_linux_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) struct scb *reset_scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) u_int cdb_byte;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) int retval = SUCCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) struct ahd_initiator_tinfo *tinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) DECLARE_COMPLETION_ONSTACK(done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) reset_scb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) scmd_printk(KERN_INFO, cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) "Attempting to queue a TARGET RESET message:");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) printk("CDB:");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) printk(" 0x%x", cmd->cmnd[cdb_byte]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) printk("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) * Determine if we currently own this command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) dev = scsi_transport_device_data(cmd->device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) if (dev == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) * No target device for this command exists,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) * so we must not still own the command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) scmd_printk(KERN_INFO, cmd, "Is not an active device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) return SUCCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) * Generate us a new SCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) reset_scb = ahd_get_scb(ahd, AHD_NEVER_COL_IDX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) if (!reset_scb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) scmd_printk(KERN_INFO, cmd, "No SCB available\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) return FAILED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) cmd->device->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) reset_scb->io_ctx = cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) reset_scb->platform_data->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) reset_scb->sg_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) ahd_set_residual(reset_scb, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) ahd_set_sense_residual(reset_scb, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) reset_scb->platform_data->xfer_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) reset_scb->hscb->control = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) reset_scb->hscb->scsiid = BUILD_SCSIID(ahd,cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) reset_scb->hscb->lun = cmd->device->lun;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) reset_scb->hscb->cdb_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) reset_scb->hscb->task_management = SIU_TASKMGMT_LUN_RESET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) reset_scb->flags |= SCB_DEVICE_RESET|SCB_RECOVERY_SCB|SCB_ACTIVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) reset_scb->flags |= SCB_PACKETIZED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) reset_scb->hscb->control |= MK_MESSAGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) dev->openings--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) dev->active++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) dev->commands_issued++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) LIST_INSERT_HEAD(&ahd->pending_scbs, reset_scb, pending_links);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) ahd_queue_scb(ahd, reset_scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) ahd->platform_data->eh_done = &done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) printk("%s: Device reset code sleeping\n", ahd_name(ahd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) if (!wait_for_completion_timeout(&done, 5 * HZ)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) ahd->platform_data->eh_done = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) printk("%s: Device reset timer expired (active %d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) ahd_name(ahd), dev->active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) retval = FAILED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) printk("%s: Device reset returning 0x%x\n", ahd_name(ahd), retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) return (retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) * Reset the SCSI bus.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) ahd_linux_bus_reset(struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) struct ahd_softc *ahd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) int found;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) if ((ahd_debug & AHD_SHOW_RECOVERY) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) printk("%s: Bus reset called for cmd %p\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) ahd_name(ahd), cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) found = ahd_reset_channel(ahd, scmd_channel(cmd) + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) /*initiate reset*/TRUE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) if (bootverbose)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) printk("%s: SCSI bus reset delivered. "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) "%d SCBs aborted.\n", ahd_name(ahd), found);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) return (SUCCESS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) struct scsi_host_template aic79xx_driver_template = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) .module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) .name = "aic79xx",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) .proc_name = "aic79xx",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) .show_info = ahd_linux_show_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) .write_info = ahd_proc_write_seeprom,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) .info = ahd_linux_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) .queuecommand = ahd_linux_queue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) .eh_abort_handler = ahd_linux_abort,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) .eh_device_reset_handler = ahd_linux_dev_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) .eh_bus_reset_handler = ahd_linux_bus_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) #if defined(__i386__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) .bios_param = ahd_linux_biosparam,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) .can_queue = AHD_MAX_QUEUE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) .this_id = -1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) .max_sectors = 8192,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) .cmd_per_lun = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) .slave_alloc = ahd_linux_slave_alloc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) .slave_configure = ahd_linux_slave_configure,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) .target_alloc = ahd_linux_target_alloc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) .target_destroy = ahd_linux_target_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) /******************************** Bus DMA *************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) ahd_dma_tag_create(struct ahd_softc *ahd, bus_dma_tag_t parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) bus_size_t alignment, bus_size_t boundary,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) dma_addr_t lowaddr, dma_addr_t highaddr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) bus_dma_filter_t *filter, void *filterarg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) bus_size_t maxsize, int nsegments,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) bus_size_t maxsegsz, int flags, bus_dma_tag_t *ret_tag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) bus_dma_tag_t dmat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) dmat = kmalloc(sizeof(*dmat), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) if (dmat == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) return (ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) * Linux is very simplistic about DMA memory. For now don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) * maintain all specification information. Once Linux supplies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) * better facilities for doing these operations, or the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) * needs of this particular driver change, we might need to do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) * more here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) dmat->alignment = alignment;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) dmat->boundary = boundary;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) dmat->maxsize = maxsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) *ret_tag = dmat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) return (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) ahd_dma_tag_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) kfree(dmat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) ahd_dmamem_alloc(struct ahd_softc *ahd, bus_dma_tag_t dmat, void** vaddr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) int flags, bus_dmamap_t *mapp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) *vaddr = dma_alloc_coherent(&ahd->dev_softc->dev, dmat->maxsize, mapp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) if (*vaddr == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) return (ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) return(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) ahd_dmamem_free(struct ahd_softc *ahd, bus_dma_tag_t dmat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) void* vaddr, bus_dmamap_t map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) dma_free_coherent(&ahd->dev_softc->dev, dmat->maxsize, vaddr, map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) ahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) void *buf, bus_size_t buflen, bus_dmamap_callback_t *cb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) void *cb_arg, int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) * Assume for now that this will only be used during
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) * initialization and not for per-transaction buffer mapping.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) bus_dma_segment_t stack_sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) stack_sg.ds_addr = map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) stack_sg.ds_len = dmat->maxsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) cb(cb_arg, &stack_sg, /*nseg*/1, /*error*/0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) return (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) ahd_dmamap_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) ahd_dmamap_unload(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) /* Nothing to do */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) return (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) /********************* Platform Dependent Functions ***************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) ahd_linux_setup_iocell_info(u_long index, int instance, int targ, int32_t value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) if ((instance >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) && (instance < ARRAY_SIZE(aic79xx_iocell_info))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) uint8_t *iocell_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) iocell_info = (uint8_t*)&aic79xx_iocell_info[instance];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) iocell_info[index] = value & 0xFFFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) if (bootverbose)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) printk("iocell[%d:%ld] = %d\n", instance, index, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) ahd_linux_setup_tag_info_global(char *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) int tags, i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) tags = simple_strtoul(p + 1, NULL, 0) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) printk("Setting Global Tags= %d\n", tags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) for (i = 0; i < ARRAY_SIZE(aic79xx_tag_info); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) for (j = 0; j < AHD_NUM_TARGETS; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) aic79xx_tag_info[i].tag_commands[j] = tags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) ahd_linux_setup_tag_info(u_long arg, int instance, int targ, int32_t value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) if ((instance >= 0) && (targ >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) && (instance < ARRAY_SIZE(aic79xx_tag_info))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) && (targ < AHD_NUM_TARGETS)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) aic79xx_tag_info[instance].tag_commands[targ] = value & 0x1FF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) if (bootverbose)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) printk("tag_info[%d:%d] = %d\n", instance, targ, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) static char *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) ahd_parse_brace_option(char *opt_name, char *opt_arg, char *end, int depth,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) void (*callback)(u_long, int, int, int32_t),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) u_long callback_arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) char *tok_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) char *tok_end2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) int instance;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) int targ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) int done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) char tok_list[] = {'.', ',', '{', '}', '\0'};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) /* All options use a ':' name/arg separator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) if (*opt_arg != ':')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) return (opt_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) opt_arg++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) instance = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) targ = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) done = FALSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) * Restore separator that may be in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) * the middle of our option argument.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) tok_end = strchr(opt_arg, '\0');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) if (tok_end < end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) *tok_end = ',';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) while (!done) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) switch (*opt_arg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) case '{':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) if (instance == -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) instance = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) if (depth > 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) if (targ == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) targ = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) printk("Malformed Option %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) opt_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) done = TRUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) opt_arg++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) case '}':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) if (targ != -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) targ = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) else if (instance != -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) instance = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) opt_arg++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) case ',':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) case '.':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) if (instance == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) done = TRUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) else if (targ >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) targ++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) else if (instance >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) instance++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) opt_arg++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) case '\0':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) done = TRUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) tok_end = end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) for (i = 0; tok_list[i]; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) tok_end2 = strchr(opt_arg, tok_list[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) if ((tok_end2) && (tok_end2 < tok_end))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) tok_end = tok_end2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) callback(callback_arg, instance, targ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) simple_strtol(opt_arg, NULL, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) opt_arg = tok_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) return (opt_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) * Handle Linux boot parameters. This routine allows for assigning a value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) * to a parameter with a ':' between the parameter and the value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) * ie. aic79xx=stpwlev:1,extended
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) aic79xx_setup(char *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) int i, n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) char *end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) static const struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) uint32_t *flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) } options[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) { "extended", &aic79xx_extended },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) { "no_reset", &aic79xx_no_reset },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) { "verbose", &aic79xx_verbose },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) { "allow_memio", &aic79xx_allow_memio},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) { "debug", &ahd_debug },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) { "periodic_otag", &aic79xx_periodic_otag },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) { "pci_parity", &aic79xx_pci_parity },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) { "seltime", &aic79xx_seltime },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) { "tag_info", NULL },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) { "global_tag_depth", NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) { "slewrate", NULL },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) { "precomp", NULL },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) { "amplitude", NULL },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) { "slowcrc", &aic79xx_slowcrc },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) end = strchr(s, '\0');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) * XXX ia64 gcc isn't smart enough to know that ARRAY_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) * will never be 0 in this case.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) n = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) while ((p = strsep(&s, ",.")) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) if (*p == '\0')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) for (i = 0; i < ARRAY_SIZE(options); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) n = strlen(options[i].name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) if (strncmp(options[i].name, p, n) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) if (i == ARRAY_SIZE(options))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) if (strncmp(p, "global_tag_depth", n) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) ahd_linux_setup_tag_info_global(p + n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) } else if (strncmp(p, "tag_info", n) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) s = ahd_parse_brace_option("tag_info", p + n, end,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) 2, ahd_linux_setup_tag_info, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) } else if (strncmp(p, "slewrate", n) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) s = ahd_parse_brace_option("slewrate",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) p + n, end, 1, ahd_linux_setup_iocell_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) AIC79XX_SLEWRATE_INDEX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) } else if (strncmp(p, "precomp", n) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) s = ahd_parse_brace_option("precomp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) p + n, end, 1, ahd_linux_setup_iocell_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) AIC79XX_PRECOMP_INDEX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) } else if (strncmp(p, "amplitude", n) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) s = ahd_parse_brace_option("amplitude",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) p + n, end, 1, ahd_linux_setup_iocell_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) AIC79XX_AMPLITUDE_INDEX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) } else if (p[n] == ':') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) *(options[i].flag) = simple_strtoul(p + n + 1, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) } else if (!strncmp(p, "verbose", n)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) *(options[i].flag) = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) *(options[i].flag) ^= 0xFFFFFFFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) __setup("aic79xx=", aic79xx_setup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) uint32_t aic79xx_verbose;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) ahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *template)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) char buf[80];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) struct Scsi_Host *host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) char *new_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) u_long s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) template->name = ahd->description;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) host = scsi_host_alloc(template, sizeof(struct ahd_softc *));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) if (host == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) return (ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) *((struct ahd_softc **)host->hostdata) = ahd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) ahd->platform_data->host = host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) host->can_queue = AHD_MAX_QUEUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) host->cmd_per_lun = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) host->sg_tablesize = AHD_NSEG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) host->this_id = ahd->our_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) host->irq = ahd->platform_data->irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) host->max_id = (ahd->features & AHD_WIDE) ? 16 : 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) host->max_lun = AHD_NUM_LUNS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) host->max_channel = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) host->sg_tablesize = AHD_NSEG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) ahd_lock(ahd, &s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) ahd_set_unit(ahd, ahd_linux_unit++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) ahd_unlock(ahd, &s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) sprintf(buf, "scsi%d", host->host_no);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) new_name = kmalloc(strlen(buf) + 1, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) if (new_name != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) strcpy(new_name, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) ahd_set_name(ahd, new_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) host->unique_id = ahd->unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) ahd_linux_initialize_scsi_bus(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) ahd_intr_enable(ahd, TRUE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) host->transportt = ahd_linux_transport_template;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) retval = scsi_add_host(host, &ahd->dev_softc->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) if (retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) printk(KERN_WARNING "aic79xx: scsi_add_host failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) scsi_host_put(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) scsi_scan_host(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) * Place the SCSI bus into a known state by either resetting it,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) * or forcing transfer negotiations on the next command to any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) * target.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) u_int target_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) u_int numtarg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) unsigned long s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) target_id = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) numtarg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) if (aic79xx_no_reset != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) ahd->flags &= ~AHD_RESET_BUS_A;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) if ((ahd->flags & AHD_RESET_BUS_A) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) ahd_reset_channel(ahd, 'A', /*initiate_reset*/TRUE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) numtarg = (ahd->features & AHD_WIDE) ? 16 : 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) ahd_lock(ahd, &s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) * Force negotiation to async for all targets that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) * will not see an initial bus reset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) for (; target_id < numtarg; target_id++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) struct ahd_initiator_tinfo *tinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) target_id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) ahd_compile_devinfo(&devinfo, ahd->our_id, target_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) CAM_LUN_WILDCARD, 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) ahd_update_neg_request(ahd, &devinfo, tstate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) tinfo, AHD_NEG_ALWAYS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) ahd_unlock(ahd, &s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) /* Give the bus some time to recover */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) if ((ahd->flags & AHD_RESET_BUS_A) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) ahd_freeze_simq(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) msleep(AIC79XX_RESET_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) ahd_release_simq(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) ahd->platform_data =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) kzalloc(sizeof(struct ahd_platform_data), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) if (ahd->platform_data == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) return (ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) ahd->platform_data->irq = AHD_LINUX_NOIRQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) ahd_lockinit(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) ahd->seltime = (aic79xx_seltime & 0x3) << 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) return (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) ahd_platform_free(struct ahd_softc *ahd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) struct scsi_target *starget;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) if (ahd->platform_data != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) /* destroy all of the device and target objects */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) for (i = 0; i < AHD_NUM_TARGETS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) starget = ahd->platform_data->starget[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) if (starget != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) ahd->platform_data->starget[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) if (ahd->platform_data->irq != AHD_LINUX_NOIRQ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) free_irq(ahd->platform_data->irq, ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) if (ahd->tags[0] == BUS_SPACE_PIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) && ahd->bshs[0].ioport != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) release_region(ahd->bshs[0].ioport, 256);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) if (ahd->tags[1] == BUS_SPACE_PIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) && ahd->bshs[1].ioport != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) release_region(ahd->bshs[1].ioport, 256);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) if (ahd->tags[0] == BUS_SPACE_MEMIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) && ahd->bshs[0].maddr != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) iounmap(ahd->bshs[0].maddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) release_mem_region(ahd->platform_data->mem_busaddr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) 0x1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) if (ahd->platform_data->host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) scsi_host_put(ahd->platform_data->host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) kfree(ahd->platform_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) ahd_platform_init(struct ahd_softc *ahd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) * Lookup and commit any modified IO Cell options.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) const struct ahd_linux_iocell_opts *iocell_opts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) iocell_opts = &aic79xx_iocell_info[ahd->unit];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) if (iocell_opts->precomp != AIC79XX_DEFAULT_PRECOMP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) AHD_SET_PRECOMP(ahd, iocell_opts->precomp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370) if (iocell_opts->slewrate != AIC79XX_DEFAULT_SLEWRATE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) AHD_SET_SLEWRATE(ahd, iocell_opts->slewrate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) if (iocell_opts->amplitude != AIC79XX_DEFAULT_AMPLITUDE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) AHD_SET_AMPLITUDE(ahd, iocell_opts->amplitude);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) ahd_platform_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) SCB_GET_CHANNEL(ahd, scb),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) SCB_GET_LUN(scb), SCB_LIST_NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) ROLE_UNKNOWN, CAM_REQUEUE_REQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) struct ahd_devinfo *devinfo, ahd_queue_alg alg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) struct ahd_linux_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) int was_queuing;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) int now_queuing;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) if (sdev == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) dev = scsi_transport_device_data(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) if (dev == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) was_queuing = dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403) switch (alg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) case AHD_QUEUE_NONE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) now_queuing = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) case AHD_QUEUE_BASIC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) now_queuing = AHD_DEV_Q_BASIC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) case AHD_QUEUE_TAGGED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) now_queuing = AHD_DEV_Q_TAGGED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) if ((dev->flags & AHD_DEV_FREEZE_TIL_EMPTY) == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) && (was_queuing != now_queuing)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) && (dev->active != 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) dev->flags |= AHD_DEV_FREEZE_TIL_EMPTY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) dev->qfrozen++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) dev->flags &= ~(AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED|AHD_DEV_PERIODIC_OTAG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) if (now_queuing) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) u_int usertags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426) usertags = ahd_linux_user_tagdepth(ahd, devinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) if (!was_queuing) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) * Start out aggressively and allow our
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) * dynamic queue depth algorithm to take
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) * care of the rest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) dev->maxtags = usertags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) dev->openings = dev->maxtags - dev->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) if (dev->maxtags == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) * Queueing is disabled by the user.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) dev->openings = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441) } else if (alg == AHD_QUEUE_TAGGED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) dev->flags |= AHD_DEV_Q_TAGGED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) if (aic79xx_periodic_otag != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) dev->flags |= AHD_DEV_PERIODIC_OTAG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) dev->flags |= AHD_DEV_Q_BASIC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) /* We can only have one opening. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) dev->maxtags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) dev->openings = 1 - dev->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453) switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) case AHD_DEV_Q_BASIC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) case AHD_DEV_Q_TAGGED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) scsi_change_queue_depth(sdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457) dev->openings + dev->active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) * We allow the OS to queue 2 untagged transactions to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) * us at any time even though we can only execute them
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) * serially on the controller/device. This should
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) * remove some latency.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) scsi_change_queue_depth(sdev, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) ahd_platform_abort_scbs(struct ahd_softc *ahd, int target, char channel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) int lun, u_int tag, role_t role, uint32_t status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) static u_int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) ahd_linux_user_tagdepth(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) static int warned_user;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) u_int tags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) tags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) if ((ahd->user_discenable & devinfo->target_mask) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) if (ahd->unit >= ARRAY_SIZE(aic79xx_tag_info)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) if (warned_user == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) printk(KERN_WARNING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) "aic79xx: WARNING: Insufficient tag_info instances\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) "aic79xx: for installed controllers. Using defaults\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) "aic79xx: Please update the aic79xx_tag_info array in\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493) "aic79xx: the aic79xx_osm.c source file.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) warned_user++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) tags = AHD_MAX_QUEUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498) adapter_tag_info_t *tag_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) tag_info = &aic79xx_tag_info[ahd->unit];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) tags = tag_info->tag_commands[devinfo->target_offset];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) if (tags > AHD_MAX_QUEUE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) tags = AHD_MAX_QUEUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) return (tags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) * Determines the queue depth for a given device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) ahd_linux_device_queue_depth(struct scsi_device *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) u_int tags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) struct ahd_softc *ahd = *((struct ahd_softc **)sdev->host->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) ahd_compile_devinfo(&devinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) ahd->our_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) sdev->sdev_target->id, sdev->lun,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) sdev->sdev_target->channel == 0 ? 'A' : 'B',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) tags = ahd_linux_user_tagdepth(ahd, &devinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) if (tags != 0 && sdev->tagged_supported != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_TAGGED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) ahd_send_async(ahd, devinfo.channel, devinfo.target,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) devinfo.lun, AC_TRANSFER_NEG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) ahd_print_devinfo(ahd, &devinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) printk("Tagged Queuing enabled. Depth %d\n", tags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533) ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_NONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) ahd_send_async(ahd, devinfo.channel, devinfo.target,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535) devinfo.lun, AC_TRANSFER_NEG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540) ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543) struct scb *scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) struct hardware_scb *hscb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) struct ahd_initiator_tinfo *tinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) u_int col_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) uint16_t mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) int nseg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) nseg = scsi_dma_map(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553) if (nseg < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554) return SCSI_MLQUEUE_HOST_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) * Get an scb to use.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) cmd->device->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) col_idx = AHD_NEVER_COL_IDX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) col_idx = AHD_BUILD_COL_IDX(cmd->device->id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) cmd->device->lun);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) ahd->flags |= AHD_RESOURCE_SHORTAGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) scsi_dma_unmap(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574) return SCSI_MLQUEUE_HOST_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577) scb->io_ctx = cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) scb->platform_data->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579) hscb = scb->hscb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) cmd->host_scribble = (char *)scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) * Fill out basics of the HSCB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585) hscb->control = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586) hscb->scsiid = BUILD_SCSIID(ahd, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) hscb->lun = cmd->device->lun;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588) scb->hscb->task_management = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) mask = SCB_GET_TARGET_MASK(ahd, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) if ((ahd->user_discenable & mask) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592) hscb->control |= DISCENB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594) if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) scb->flags |= SCB_PACKETIZED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597) if ((tstate->auto_negotiate & mask) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598) scb->flags |= SCB_AUTO_NEGOTIATE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) scb->hscb->control |= MK_MESSAGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603) if (dev->commands_since_idle_or_otag == AHD_OTAG_THRESH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) && (dev->flags & AHD_DEV_Q_TAGGED) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605) hscb->control |= MSG_ORDERED_TASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) dev->commands_since_idle_or_otag = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608) hscb->control |= MSG_SIMPLE_TASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) hscb->cdb_len = cmd->cmd_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) memcpy(hscb->shared_data.idata.cdb, cmd->cmnd, hscb->cdb_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) scb->platform_data->xfer_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616) ahd_set_residual(scb, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) ahd_set_sense_residual(scb, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618) scb->sg_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620) if (nseg > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621) void *sg = scb->sg_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) struct scatterlist *cur_seg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) scb->platform_data->xfer_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627) scsi_for_each_sg(cmd, cur_seg, nseg, i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) dma_addr_t addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629) bus_size_t len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631) addr = sg_dma_address(cur_seg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632) len = sg_dma_len(cur_seg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633) scb->platform_data->xfer_len += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) sg = ahd_sg_setup(ahd, scb, sg, addr, len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) i == (nseg - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639) LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640) dev->openings--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) dev->active++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642) dev->commands_issued++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) if ((dev->flags & AHD_DEV_PERIODIC_OTAG) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645) dev->commands_since_idle_or_otag++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646) scb->flags |= SCB_ACTIVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647) ahd_queue_scb(ahd, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655) * SCSI controller interrupt handler.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657) irqreturn_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658) ahd_linux_isr(int irq, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660) struct ahd_softc *ahd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) u_long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662) int ours;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664) ahd = (struct ahd_softc *) dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666) ours = ahd_intr(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668) return IRQ_RETVAL(ours);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) ahd_send_async(struct ahd_softc *ahd, char channel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673) u_int target, u_int lun, ac_code code)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) switch (code) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676) case AC_TRANSFER_NEG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) struct scsi_target *starget;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679) struct ahd_initiator_tinfo *tinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) unsigned int target_ppr_options;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683) BUG_ON(target == CAM_TARGET_WILDCARD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) target, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689) * Don't bother reporting results while
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) * negotiations are still pending.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) if (tinfo->curr.period != tinfo->goal.period
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693) || tinfo->curr.width != tinfo->goal.width
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) || tinfo->curr.offset != tinfo->goal.offset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695) || tinfo->curr.ppr_options != tinfo->goal.ppr_options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696) if (bootverbose == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700) * Don't bother reporting results that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) * are identical to those last reported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) starget = ahd->platform_data->starget[target];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704) if (starget == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707) target_ppr_options =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708) (spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) + (spi_qas(starget) ? MSG_EXT_PPR_QAS_REQ : 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710) + (spi_iu(starget) ? MSG_EXT_PPR_IU_REQ : 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711) + (spi_rd_strm(starget) ? MSG_EXT_PPR_RD_STRM : 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) + (spi_pcomp_en(starget) ? MSG_EXT_PPR_PCOMP_EN : 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) + (spi_rti(starget) ? MSG_EXT_PPR_RTI : 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714) + (spi_wr_flow(starget) ? MSG_EXT_PPR_WR_FLOW : 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) + (spi_hold_mcs(starget) ? MSG_EXT_PPR_HOLD_MCS : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) if (tinfo->curr.period == spi_period(starget)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718) && tinfo->curr.width == spi_width(starget)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719) && tinfo->curr.offset == spi_offset(starget)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720) && tinfo->curr.ppr_options == target_ppr_options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721) if (bootverbose == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724) spi_period(starget) = tinfo->curr.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725) spi_width(starget) = tinfo->curr.width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726) spi_offset(starget) = tinfo->curr.offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728) spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729) spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) spi_rd_strm(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RD_STRM ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) spi_pcomp_en(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_PCOMP_EN ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732) spi_rti(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RTI ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733) spi_wr_flow(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_WR_FLOW ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) spi_hold_mcs(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_HOLD_MCS ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735) spi_display_xfer_agreement(starget);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738) case AC_SENT_BDR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740) WARN_ON(lun != CAM_LUN_WILDCARD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741) scsi_report_device_reset(ahd->platform_data->host,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742) channel - 'A', target);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745) case AC_BUS_RESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746) if (ahd->platform_data->host != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747) scsi_report_bus_reset(ahd->platform_data->host,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) channel - 'A');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752) panic("ahd_send_async: Unexpected async event");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757) * Calls the higher level scsi done function and frees the scb.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760) ahd_done(struct ahd_softc *ahd, struct scb *scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) struct scsi_cmnd *cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763) struct ahd_linux_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) if ((scb->flags & SCB_ACTIVE) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) printk("SCB %d done'd twice\n", SCB_GET_TAG(scb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) ahd_dump_card_state(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768) panic("Stopping for safety");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770) LIST_REMOVE(scb, pending_links);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) cmd = scb->io_ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772) dev = scb->platform_data->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773) dev->active--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) dev->openings++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776) cmd->result &= ~(CAM_DEV_QFRZN << 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777) dev->qfrozen--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779) ahd_linux_unmap_scb(ahd, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782) * Guard against stale sense data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783) * The Linux mid-layer assumes that sense
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) * was retrieved anytime the first byte of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) * the sense buffer looks "sane".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) cmd->sense_buffer[0] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788) if (ahd_get_transaction_status(scb) == CAM_REQ_INPROG) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789) #ifdef AHD_REPORT_UNDERFLOWS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790) uint32_t amount_xferred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) amount_xferred =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793) ahd_get_transfer_length(scb) - ahd_get_residual(scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795) if ((scb->flags & SCB_TRANSMISSION_ERROR) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797) if ((ahd_debug & AHD_SHOW_MISC) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798) ahd_print_path(ahd, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799) printk("Set CAM_UNCOR_PARITY\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) ahd_set_transaction_status(scb, CAM_UNCOR_PARITY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803) #ifdef AHD_REPORT_UNDERFLOWS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) * This code is disabled by default as some
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806) * clients of the SCSI system do not properly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) * initialize the underflow parameter. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808) * results in spurious termination of commands
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809) * that complete as expected (e.g. underflow is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810) * allowed as command can return variable amounts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811) * of data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813) } else if (amount_xferred < scb->io_ctx->underflow) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) u_int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816) ahd_print_path(ahd, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) printk("CDB:");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818) for (i = 0; i < scb->io_ctx->cmd_len; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819) printk(" 0x%x", scb->io_ctx->cmnd[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) printk("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) ahd_print_path(ahd, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822) printk("Saw underflow (%ld of %ld bytes). "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) "Treated as error\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824) ahd_get_residual(scb),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825) ahd_get_transfer_length(scb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826) ahd_set_transaction_status(scb, CAM_DATA_RUN_ERR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829) ahd_set_transaction_status(scb, CAM_REQ_CMP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831) } else if (ahd_get_transaction_status(scb) == CAM_SCSI_STATUS_ERROR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832) ahd_linux_handle_scsi_status(ahd, cmd->device, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835) if (dev->openings == 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) && ahd_get_transaction_status(scb) == CAM_REQ_CMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837) && ahd_get_scsi_status(scb) != SCSI_STATUS_QUEUE_FULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838) dev->tag_success_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840) * Some devices deal with temporary internal resource
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) * shortages by returning queue full. When the queue
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842) * full occurrs, we throttle back. Slowly try to get
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843) * back to our previous queue depth.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845) if ((dev->openings + dev->active) < dev->maxtags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) && dev->tag_success_count > AHD_TAG_SUCCESS_INTERVAL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847) dev->tag_success_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848) dev->openings++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851) if (dev->active == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852) dev->commands_since_idle_or_otag = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855) printk("Recovery SCB completes\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) if (ahd_get_transaction_status(scb) == CAM_BDR_SENT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857) || ahd_get_transaction_status(scb) == CAM_REQ_ABORTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858) ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860) if (ahd->platform_data->eh_done)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861) complete(ahd->platform_data->eh_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864) ahd_free_scb(ahd, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865) ahd_linux_queue_cmd_complete(ahd, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869) ahd_linux_handle_scsi_status(struct ahd_softc *ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870) struct scsi_device *sdev, struct scb *scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873) struct ahd_linux_device *dev = scsi_transport_device_data(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875) ahd_compile_devinfo(&devinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876) ahd->our_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877) sdev->sdev_target->id, sdev->lun,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878) sdev->sdev_target->channel == 0 ? 'A' : 'B',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879) ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882) * We don't currently trust the mid-layer to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883) * properly deal with queue full or busy. So,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884) * when one occurs, we tell the mid-layer to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885) * unconditionally requeue the command to us
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886) * so that we can retry it ourselves. We also
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) * implement our own throttling mechanism so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888) * we don't clobber the device with too many
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889) * commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891) switch (ahd_get_scsi_status(scb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894) case SCSI_STATUS_CHECK_COND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895) case SCSI_STATUS_CMD_TERMINATED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897) struct scsi_cmnd *cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900) * Copy sense information to the OS's cmd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901) * structure if it is available.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903) cmd = scb->io_ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904) if ((scb->flags & (SCB_SENSE|SCB_PKT_SENSE)) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) struct scsi_status_iu_header *siu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906) u_int sense_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) u_int sense_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909) if (scb->flags & SCB_SENSE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910) sense_size = min(sizeof(struct scsi_sense_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911) - ahd_get_sense_residual(scb),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912) (u_long)SCSI_SENSE_BUFFERSIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913) sense_offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916) * Copy only the sense data into the provided
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917) * buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919) siu = (struct scsi_status_iu_header *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920) scb->sense_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921) sense_size = min_t(size_t,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) scsi_4btoul(siu->sense_length),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923) SCSI_SENSE_BUFFERSIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924) sense_offset = SIU_SENSE_OFFSET(siu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927) memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) memcpy(cmd->sense_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929) ahd_get_sense_buf(ahd, scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930) + sense_offset, sense_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931) cmd->result |= (DRIVER_SENSE << 24);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934) if (ahd_debug & AHD_SHOW_SENSE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937) printk("Copied %d bytes of sense data at %d:",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938) sense_size, sense_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939) for (i = 0; i < sense_size; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940) if ((i & 0xF) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941) printk("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942) printk("0x%x ", cmd->sense_buffer[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) printk("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950) case SCSI_STATUS_QUEUE_FULL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) * By the time the core driver has returned this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953) * command, all other commands that were queued
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954) * to us but not the device have been returned.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955) * This ensures that dev->active is equal to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956) * the number of commands actually queued to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957) * the device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) dev->tag_success_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) if (dev->active != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962) * Drop our opening count to the number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) * of commands currently outstanding.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965) dev->openings = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967) if ((ahd_debug & AHD_SHOW_QFULL) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968) ahd_print_path(ahd, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969) printk("Dropping tag count to %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970) dev->active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1972) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1973) if (dev->active == dev->tags_on_last_queuefull) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1974)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1975) dev->last_queuefull_same_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1976) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1977) * If we repeatedly see a queue full
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1978) * at the same queue depth, this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1979) * device has a fixed number of tag
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1980) * slots. Lock in this tag depth
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1981) * so we stop seeing queue fulls from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1982) * this device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1983) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1984) if (dev->last_queuefull_same_count
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1985) == AHD_LOCK_TAGS_COUNT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1986) dev->maxtags = dev->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1987) ahd_print_path(ahd, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1988) printk("Locking max tag count at %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1989) dev->active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1990) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1991) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1992) dev->tags_on_last_queuefull = dev->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1993) dev->last_queuefull_same_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1994) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1995) ahd_set_transaction_status(scb, CAM_REQUEUE_REQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1996) ahd_set_scsi_status(scb, SCSI_STATUS_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1997) ahd_platform_set_tags(ahd, sdev, &devinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1998) (dev->flags & AHD_DEV_Q_BASIC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1999) ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2000) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2001) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2002) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2003) * Drop down to a single opening, and treat this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2004) * as if the target returned BUSY SCSI status.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2005) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2006) dev->openings = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2007) ahd_platform_set_tags(ahd, sdev, &devinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2008) (dev->flags & AHD_DEV_Q_BASIC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2009) ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2010) ahd_set_scsi_status(scb, SCSI_STATUS_BUSY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2011) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2012) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2013)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2014) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2015) ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2016) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2017) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2018) int new_status = DID_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2019) int do_fallback = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2020) int scsi_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2021)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2022) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2023) * Map CAM error codes into Linux Error codes. We
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2024) * avoid the conversion so that the DV code has the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2025) * full error information available when making
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2026) * state change decisions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2027) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2028)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2029) status = ahd_cmd_get_transaction_status(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2030) switch (status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2031) case CAM_REQ_INPROG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2032) case CAM_REQ_CMP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2033) new_status = DID_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2034) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2035) case CAM_AUTOSENSE_FAIL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2036) new_status = DID_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2037) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2038) case CAM_SCSI_STATUS_ERROR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2039) scsi_status = ahd_cmd_get_scsi_status(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2040)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2041) switch(scsi_status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2042) case SCSI_STATUS_CMD_TERMINATED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2043) case SCSI_STATUS_CHECK_COND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2044) if ((cmd->result >> 24) != DRIVER_SENSE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2045) do_fallback = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2046) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2047) struct scsi_sense_data *sense;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2049) sense = (struct scsi_sense_data *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2050) cmd->sense_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2051) if (sense->extra_len >= 5 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2052) (sense->add_sense_code == 0x47
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2053) || sense->add_sense_code == 0x48))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2054) do_fallback = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2055) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2056) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2057) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2058) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2059) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2060) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2061) case CAM_REQ_ABORTED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2062) new_status = DID_ABORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2063) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2064) case CAM_BUSY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2065) new_status = DID_BUS_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2066) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2067) case CAM_REQ_INVALID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2068) case CAM_PATH_INVALID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2069) new_status = DID_BAD_TARGET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2070) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2071) case CAM_SEL_TIMEOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2072) new_status = DID_NO_CONNECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2073) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2074) case CAM_SCSI_BUS_RESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2075) case CAM_BDR_SENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2076) new_status = DID_RESET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2077) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2078) case CAM_UNCOR_PARITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2079) new_status = DID_PARITY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2080) do_fallback = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2081) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2082) case CAM_CMD_TIMEOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2083) new_status = DID_TIME_OUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2084) do_fallback = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2085) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2086) case CAM_REQ_CMP_ERR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2087) case CAM_UNEXP_BUSFREE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2088) case CAM_DATA_RUN_ERR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2089) new_status = DID_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2090) do_fallback = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2091) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2092) case CAM_UA_ABORT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2093) case CAM_NO_HBA:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2094) case CAM_SEQUENCE_FAIL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2095) case CAM_CCB_LEN_ERR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2096) case CAM_PROVIDE_FAIL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2097) case CAM_REQ_TERMIO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2098) case CAM_UNREC_HBA_ERROR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2099) case CAM_REQ_TOO_BIG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2100) new_status = DID_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2101) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2102) case CAM_REQUEUE_REQ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2103) new_status = DID_REQUEUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2104) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2105) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2106) /* We should never get here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2107) new_status = DID_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2108) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2111) if (do_fallback) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2112) printk("%s: device overrun (status %x) on %d:%d:%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2113) ahd_name(ahd), status, cmd->device->channel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2114) cmd->device->id, (u8)cmd->device->lun);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2117) ahd_cmd_set_transaction_status(cmd, new_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2119) cmd->scsi_done(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2122) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2123) ahd_freeze_simq(struct ahd_softc *ahd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2125) scsi_block_requests(ahd->platform_data->host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2128) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2129) ahd_release_simq(struct ahd_softc *ahd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2130) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2131) scsi_unblock_requests(ahd->platform_data->host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2134) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2135) ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2136) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2137) struct ahd_softc *ahd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2138) struct ahd_linux_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2139) struct scb *pending_scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2140) u_int saved_scbptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2141) u_int active_scbptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2142) u_int last_phase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2143) u_int saved_scsiid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2144) u_int cdb_byte;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2145) int retval = SUCCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2146) int was_paused;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2147) int paused;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2148) int wait;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2149) int disconnected;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2150) ahd_mode_state saved_modes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2151) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2153) pending_scb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2154) paused = FALSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2155) wait = FALSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2156) ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2158) scmd_printk(KERN_INFO, cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2159) "Attempting to queue an ABORT message:");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2161) printk("CDB:");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2162) for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2163) printk(" 0x%x", cmd->cmnd[cdb_byte]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2164) printk("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2166) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2168) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2169) * First determine if we currently own this command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2170) * Start by searching the device queue. If not found
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2171) * there, check the pending_scb list. If not found
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2172) * at all, and the system wanted us to just abort the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2173) * command, return success.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2174) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2175) dev = scsi_transport_device_data(cmd->device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2177) if (dev == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2178) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2179) * No target device for this command exists,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2180) * so we must not still own the command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2181) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2182) scmd_printk(KERN_INFO, cmd, "Is not an active device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2183) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2186) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2187) * See if we can find a matching cmd in the pending list.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2188) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2189) LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2190) if (pending_scb->io_ctx == cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2191) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2194) if (pending_scb == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2195) scmd_printk(KERN_INFO, cmd, "Command not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2196) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2199) if ((pending_scb->flags & SCB_RECOVERY_SCB) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2200) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2201) * We can't queue two recovery actions using the same SCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2202) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2203) retval = FAILED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2204) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2207) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2208) * Ensure that the card doesn't do anything
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2209) * behind our back. Also make sure that we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2210) * didn't "just" miss an interrupt that would
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2211) * affect this cmd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2212) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2213) was_paused = ahd_is_paused(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2214) ahd_pause_and_flushwork(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2215) paused = TRUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2217) if ((pending_scb->flags & SCB_ACTIVE) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2218) scmd_printk(KERN_INFO, cmd, "Command already completed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2219) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2222) printk("%s: At time of recovery, card was %spaused\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2223) ahd_name(ahd), was_paused ? "" : "not ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2224) ahd_dump_card_state(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2226) disconnected = TRUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2227) if (ahd_search_qinfifo(ahd, cmd->device->id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2228) cmd->device->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2229) cmd->device->lun,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2230) pending_scb->hscb->tag,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2231) ROLE_INITIATOR, CAM_REQ_ABORTED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2232) SEARCH_COMPLETE) > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2233) printk("%s:%d:%d:%d: Cmd aborted from QINFIFO\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2234) ahd_name(ahd), cmd->device->channel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2235) cmd->device->id, (u8)cmd->device->lun);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2236) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2239) saved_modes = ahd_save_modes(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2240) ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2241) last_phase = ahd_inb(ahd, LASTPHASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2242) saved_scbptr = ahd_get_scbptr(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2243) active_scbptr = saved_scbptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2244) if (disconnected && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2245) struct scb *bus_scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2247) bus_scb = ahd_lookup_scb(ahd, active_scbptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2248) if (bus_scb == pending_scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2249) disconnected = FALSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2252) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2253) * At this point, pending_scb is the scb associated with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2254) * passed in command. That command is currently active on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2255) * bus or is in the disconnected state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2256) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2257) saved_scsiid = ahd_inb(ahd, SAVED_SCSIID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2258) if (last_phase != P_BUSFREE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2259) && SCB_GET_TAG(pending_scb) == active_scbptr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2261) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2262) * We're active on the bus, so assert ATN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2263) * and hope that the target responds.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2264) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2265) pending_scb = ahd_lookup_scb(ahd, active_scbptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2266) pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2267) ahd_outb(ahd, MSG_OUT, HOST_MSG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2268) ahd_outb(ahd, SCSISIGO, last_phase|ATNO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2269) scmd_printk(KERN_INFO, cmd, "Device is active, asserting ATN\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2270) wait = TRUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2271) } else if (disconnected) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2273) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2274) * Actually re-queue this SCB in an attempt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2275) * to select the device before it reconnects.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2276) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2277) pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2278) ahd_set_scbptr(ahd, SCB_GET_TAG(pending_scb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2279) pending_scb->hscb->cdb_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2280) pending_scb->hscb->task_attribute = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2281) pending_scb->hscb->task_management = SIU_TASKMGMT_ABORT_TASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2283) if ((pending_scb->flags & SCB_PACKETIZED) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2284) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2285) * Mark the SCB has having an outstanding
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2286) * task management function. Should the command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2287) * complete normally before the task management
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2288) * function can be sent, the host will be notified
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2289) * to abort our requeued SCB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2290) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2291) ahd_outb(ahd, SCB_TASK_MANAGEMENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2292) pending_scb->hscb->task_management);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2293) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2294) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2295) * If non-packetized, set the MK_MESSAGE control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2296) * bit indicating that we desire to send a message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2297) * We also set the disconnected flag since there is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2298) * no guarantee that our SCB control byte matches
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2299) * the version on the card. We don't want the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2300) * sequencer to abort the command thinking an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2301) * unsolicited reselection occurred.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2302) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2303) pending_scb->hscb->control |= MK_MESSAGE|DISCONNECTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2305) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2306) * The sequencer will never re-reference the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2307) * in-core SCB. To make sure we are notified
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2308) * during reselection, set the MK_MESSAGE flag in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2309) * the card's copy of the SCB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2310) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2311) ahd_outb(ahd, SCB_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2312) ahd_inb(ahd, SCB_CONTROL)|MK_MESSAGE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2315) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2316) * Clear out any entries in the QINFIFO first
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2317) * so we are the next SCB for this target
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2318) * to run.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2319) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2320) ahd_search_qinfifo(ahd, cmd->device->id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2321) cmd->device->channel + 'A', cmd->device->lun,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2322) SCB_LIST_NULL, ROLE_INITIATOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2323) CAM_REQUEUE_REQ, SEARCH_COMPLETE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2324) ahd_qinfifo_requeue_tail(ahd, pending_scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2325) ahd_set_scbptr(ahd, saved_scbptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2326) ahd_print_path(ahd, pending_scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2327) printk("Device is disconnected, re-queuing SCB\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2328) wait = TRUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2329) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2330) scmd_printk(KERN_INFO, cmd, "Unable to deliver message\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2331) retval = FAILED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2332) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2335) ahd_restore_modes(ahd, saved_modes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2336) done:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2337) if (paused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2338) ahd_unpause(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2339) if (wait) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2340) DECLARE_COMPLETION_ONSTACK(done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2342) ahd->platform_data->eh_done = &done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2343) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2345) printk("%s: Recovery code sleeping\n", ahd_name(ahd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2346) if (!wait_for_completion_timeout(&done, 5 * HZ)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2347) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2348) ahd->platform_data->eh_done = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2349) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2350) printk("%s: Timer Expired (active %d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2351) ahd_name(ahd), dev->active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2352) retval = FAILED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2354) printk("Recovery code awake\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2355) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2356) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2358) if (retval != SUCCESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2359) printk("%s: Command abort returning 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2360) ahd_name(ahd), retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2362) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2363) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2365) static void ahd_linux_set_width(struct scsi_target *starget, int width)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2366) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2367) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2368) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2369) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2370) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2372) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2373) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2374) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2375) ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2376) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2379) static void ahd_linux_set_period(struct scsi_target *starget, int period)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2381) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2382) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2383) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2384) struct ahd_initiator_tinfo *tinfo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2385) = ahd_fetch_transinfo(ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2386) starget->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2387) shost->this_id, starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2388) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2389) unsigned int ppr_options = tinfo->goal.ppr_options;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2390) unsigned int dt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2391) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2392) unsigned long offset = tinfo->goal.offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2394) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2395) if ((ahd_debug & AHD_SHOW_DV) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2396) printk("%s: set period to %d\n", ahd_name(ahd), period);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2397) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2398) if (offset == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2399) offset = MAX_OFFSET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2401) if (period < 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2402) period = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2403) if (period < 10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2404) if (spi_max_width(starget)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2405) ppr_options |= MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2406) if (period == 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2407) ppr_options |= MSG_EXT_PPR_IU_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2408) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2409) period = 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2410) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2412) dt = ppr_options & MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2414) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2415) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2417) /* all PPR requests apart from QAS require wide transfers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2418) if (ppr_options & ~MSG_EXT_PPR_QAS_REQ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2419) if (spi_width(starget) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2420) ppr_options &= MSG_EXT_PPR_QAS_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2421) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2423) ahd_find_syncrate(ahd, &period, &ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2424) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2426) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2427) ahd_set_syncrate(ahd, &devinfo, period, offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2428) ppr_options, AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2429) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2432) static void ahd_linux_set_offset(struct scsi_target *starget, int offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2433) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2434) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2435) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2436) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2437) struct ahd_initiator_tinfo *tinfo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2438) = ahd_fetch_transinfo(ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2439) starget->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2440) shost->this_id, starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2441) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2442) unsigned int ppr_options = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2443) unsigned int period = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2444) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2445) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2447) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2448) if ((ahd_debug & AHD_SHOW_DV) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2449) printk("%s: set offset to %d\n", ahd_name(ahd), offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2450) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2452) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2453) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2454) if (offset != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2455) period = tinfo->goal.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2456) ppr_options = tinfo->goal.ppr_options;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2457) ahd_find_syncrate(ahd, &period, &ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2458) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2459) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2461) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2462) ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2463) AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2464) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2465) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2467) static void ahd_linux_set_dt(struct scsi_target *starget, int dt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2468) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2469) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2470) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2471) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2472) struct ahd_initiator_tinfo *tinfo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2473) = ahd_fetch_transinfo(ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2474) starget->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2475) shost->this_id, starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2476) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2477) unsigned int ppr_options = tinfo->goal.ppr_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2478) & ~MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2479) unsigned int period = tinfo->goal.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2480) unsigned int width = tinfo->goal.width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2481) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2483) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2484) if ((ahd_debug & AHD_SHOW_DV) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2485) printk("%s: %s DT\n", ahd_name(ahd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2486) dt ? "enabling" : "disabling");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2487) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2488) if (dt && spi_max_width(starget)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2489) ppr_options |= MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2490) if (!width)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2491) ahd_linux_set_width(starget, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2492) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2493) if (period <= 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2494) period = 10; /* If resetting DT, period must be >= 25ns */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2495) /* IU is invalid without DT set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2496) ppr_options &= ~MSG_EXT_PPR_IU_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2498) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2499) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2500) ahd_find_syncrate(ahd, &period, &ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2501) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2503) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2504) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2505) ppr_options, AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2506) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2507) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2509) static void ahd_linux_set_qas(struct scsi_target *starget, int qas)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2510) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2511) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2512) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2513) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2514) struct ahd_initiator_tinfo *tinfo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2515) = ahd_fetch_transinfo(ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2516) starget->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2517) shost->this_id, starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2518) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2519) unsigned int ppr_options = tinfo->goal.ppr_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2520) & ~MSG_EXT_PPR_QAS_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2521) unsigned int period = tinfo->goal.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2522) unsigned int dt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2523) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2525) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2526) if ((ahd_debug & AHD_SHOW_DV) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2527) printk("%s: %s QAS\n", ahd_name(ahd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2528) qas ? "enabling" : "disabling");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2529) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2531) if (qas) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2532) ppr_options |= MSG_EXT_PPR_QAS_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2533) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2535) dt = ppr_options & MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2537) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2538) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2539) ahd_find_syncrate(ahd, &period, &ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2540) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2542) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2543) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2544) ppr_options, AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2545) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2546) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2548) static void ahd_linux_set_iu(struct scsi_target *starget, int iu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2549) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2550) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2551) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2552) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2553) struct ahd_initiator_tinfo *tinfo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2554) = ahd_fetch_transinfo(ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2555) starget->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2556) shost->this_id, starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2557) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2558) unsigned int ppr_options = tinfo->goal.ppr_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2559) & ~MSG_EXT_PPR_IU_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2560) unsigned int period = tinfo->goal.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2561) unsigned int dt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2562) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2564) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2565) if ((ahd_debug & AHD_SHOW_DV) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2566) printk("%s: %s IU\n", ahd_name(ahd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2567) iu ? "enabling" : "disabling");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2568) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2570) if (iu && spi_max_width(starget)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2571) ppr_options |= MSG_EXT_PPR_IU_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2572) ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2573) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2575) dt = ppr_options & MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2577) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2578) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2579) ahd_find_syncrate(ahd, &period, &ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2580) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2582) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2583) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2584) ppr_options, AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2585) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2588) static void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2589) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2590) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2591) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2592) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2593) struct ahd_initiator_tinfo *tinfo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2594) = ahd_fetch_transinfo(ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2595) starget->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2596) shost->this_id, starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2597) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2598) unsigned int ppr_options = tinfo->goal.ppr_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2599) & ~MSG_EXT_PPR_RD_STRM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2600) unsigned int period = tinfo->goal.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2601) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2602) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2604) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2605) if ((ahd_debug & AHD_SHOW_DV) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2606) printk("%s: %s Read Streaming\n", ahd_name(ahd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2607) rdstrm ? "enabling" : "disabling");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2608) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2610) if (rdstrm && spi_max_width(starget))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2611) ppr_options |= MSG_EXT_PPR_RD_STRM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2613) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2614) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2615) ahd_find_syncrate(ahd, &period, &ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2616) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2618) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2619) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2620) ppr_options, AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2621) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2622) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2624) static void ahd_linux_set_wr_flow(struct scsi_target *starget, int wrflow)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2625) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2626) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2627) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2628) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2629) struct ahd_initiator_tinfo *tinfo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2630) = ahd_fetch_transinfo(ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2631) starget->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2632) shost->this_id, starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2633) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2634) unsigned int ppr_options = tinfo->goal.ppr_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2635) & ~MSG_EXT_PPR_WR_FLOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2636) unsigned int period = tinfo->goal.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2637) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2638) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2640) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2641) if ((ahd_debug & AHD_SHOW_DV) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2642) printk("%s: %s Write Flow Control\n", ahd_name(ahd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2643) wrflow ? "enabling" : "disabling");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2644) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2646) if (wrflow && spi_max_width(starget))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2647) ppr_options |= MSG_EXT_PPR_WR_FLOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2649) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2650) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2651) ahd_find_syncrate(ahd, &period, &ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2652) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2654) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2655) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2656) ppr_options, AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2657) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2658) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2660) static void ahd_linux_set_rti(struct scsi_target *starget, int rti)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2661) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2662) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2663) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2664) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2665) struct ahd_initiator_tinfo *tinfo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2666) = ahd_fetch_transinfo(ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2667) starget->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2668) shost->this_id, starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2669) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2670) unsigned int ppr_options = tinfo->goal.ppr_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2671) & ~MSG_EXT_PPR_RTI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2672) unsigned int period = tinfo->goal.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2673) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2674) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2676) if ((ahd->features & AHD_RTI) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2677) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2678) if ((ahd_debug & AHD_SHOW_DV) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2679) printk("%s: RTI not available\n", ahd_name(ahd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2680) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2681) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2682) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2683)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2684) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2685) if ((ahd_debug & AHD_SHOW_DV) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2686) printk("%s: %s RTI\n", ahd_name(ahd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2687) rti ? "enabling" : "disabling");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2688) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2690) if (rti && spi_max_width(starget))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2691) ppr_options |= MSG_EXT_PPR_RTI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2693) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2694) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2695) ahd_find_syncrate(ahd, &period, &ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2696) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2698) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2699) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2700) ppr_options, AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2701) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2702) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2703)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2704) static void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2705) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2706) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2707) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2708) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2709) struct ahd_initiator_tinfo *tinfo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2710) = ahd_fetch_transinfo(ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2711) starget->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2712) shost->this_id, starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2713) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2714) unsigned int ppr_options = tinfo->goal.ppr_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2715) & ~MSG_EXT_PPR_PCOMP_EN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2716) unsigned int period = tinfo->goal.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2717) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2718) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2719)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2720) #ifdef AHD_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2721) if ((ahd_debug & AHD_SHOW_DV) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2722) printk("%s: %s Precompensation\n", ahd_name(ahd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2723) pcomp ? "Enable" : "Disable");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2724) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2726) if (pcomp && spi_max_width(starget)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2727) uint8_t precomp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2729) if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2730) const struct ahd_linux_iocell_opts *iocell_opts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2732) iocell_opts = &aic79xx_iocell_info[ahd->unit];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2733) precomp = iocell_opts->precomp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2734) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2735) precomp = AIC79XX_DEFAULT_PRECOMP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2736) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2737) ppr_options |= MSG_EXT_PPR_PCOMP_EN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2738) AHD_SET_PRECOMP(ahd, precomp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2739) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2740) AHD_SET_PRECOMP(ahd, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2741) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2743) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2744) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2745) ahd_find_syncrate(ahd, &period, &ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2746) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2747)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2748) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2749) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2750) ppr_options, AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2751) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2752) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2753)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2754) static void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2755) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2756) struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2757) struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2758) struct ahd_tmode_tstate *tstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2759) struct ahd_initiator_tinfo *tinfo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2760) = ahd_fetch_transinfo(ahd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2761) starget->channel + 'A',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2762) shost->this_id, starget->id, &tstate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2763) struct ahd_devinfo devinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2764) unsigned int ppr_options = tinfo->goal.ppr_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2765) & ~MSG_EXT_PPR_HOLD_MCS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2766) unsigned int period = tinfo->goal.period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2767) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2768) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2769)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2770) if (hold && spi_max_width(starget))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2771) ppr_options |= MSG_EXT_PPR_HOLD_MCS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2773) ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2774) starget->channel + 'A', ROLE_INITIATOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2775) ahd_find_syncrate(ahd, &period, &ppr_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2776) dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2778) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2779) ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2780) ppr_options, AHD_TRANS_GOAL, FALSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2781) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2782) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2784) static void ahd_linux_get_signalling(struct Scsi_Host *shost)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2785) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2786) struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2787) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2788) u8 mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2790) ahd_lock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2791) ahd_pause(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2792) mode = ahd_inb(ahd, SBLKCTL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2793) ahd_unpause(ahd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2794) ahd_unlock(ahd, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2795)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2796) if (mode & ENAB40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2797) spi_signalling(shost) = SPI_SIGNAL_LVD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2798) else if (mode & ENAB20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2799) spi_signalling(shost) = SPI_SIGNAL_SE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2800) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2801) spi_signalling(shost) = SPI_SIGNAL_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2802) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2804) static struct spi_function_template ahd_linux_transport_functions = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2805) .set_offset = ahd_linux_set_offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2806) .show_offset = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2807) .set_period = ahd_linux_set_period,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2808) .show_period = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2809) .set_width = ahd_linux_set_width,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2810) .show_width = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2811) .set_dt = ahd_linux_set_dt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2812) .show_dt = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2813) .set_iu = ahd_linux_set_iu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2814) .show_iu = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2815) .set_qas = ahd_linux_set_qas,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2816) .show_qas = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2817) .set_rd_strm = ahd_linux_set_rd_strm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2818) .show_rd_strm = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2819) .set_wr_flow = ahd_linux_set_wr_flow,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2820) .show_wr_flow = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2821) .set_rti = ahd_linux_set_rti,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2822) .show_rti = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2823) .set_pcomp_en = ahd_linux_set_pcomp_en,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2824) .show_pcomp_en = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2825) .set_hold_mcs = ahd_linux_set_hold_mcs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2826) .show_hold_mcs = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2827) .get_signalling = ahd_linux_get_signalling,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2828) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2829)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2830) static int __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2831) ahd_linux_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2832) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2833) int error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2834)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2835) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2836) * If we've been passed any parameters, process them now.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2837) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2838) if (aic79xx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2839) aic79xx_setup(aic79xx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2841) ahd_linux_transport_template =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2842) spi_attach_transport(&ahd_linux_transport_functions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2843) if (!ahd_linux_transport_template)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2844) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2845)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2846) scsi_transport_reserve_device(ahd_linux_transport_template,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2847) sizeof(struct ahd_linux_device));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2848)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2849) error = ahd_linux_pci_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2850) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2851) spi_release_transport(ahd_linux_transport_template);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2852) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2853) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2854)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2855) static void __exit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2856) ahd_linux_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2857) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2858) ahd_linux_pci_exit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2859) spi_release_transport(ahd_linux_transport_template);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2860) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2861)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2862) module_init(ahd_linux_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2863) module_exit(ahd_linux_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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