annotate usr/src/uts/sun4v/sys/vdc.h @ 10812:c6175c150216

6726533 vdisk failover should handle storage/storage-path failures (a la mpxio)
author Alexandre Chartre <Alexandre.Chartre@Sun.COM>
date Mon, 19 Oct 2009 13:40:30 -0700
parents 68d0fe4c716e
children 2663784ac9bb
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1 /*
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2 * CDDL HEADER START
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3 *
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4 * The contents of this file are subject to the terms of the
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5 * Common Development and Distribution License (the "License").
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6 * You may not use this file except in compliance with the License.
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7 *
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8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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9 * or http://www.opensolaris.org/os/licensing.
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10 * See the License for the specific language governing permissions
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11 * and limitations under the License.
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12 *
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13 * When distributing Covered Code, include this CDDL HEADER in each
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14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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15 * If applicable, add the following below this CDDL HEADER, with the
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16 * fields enclosed by brackets "[]" replaced with your own identifying
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17 * information: Portions Copyright [yyyy] [name of copyright owner]
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18 *
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19 * CDDL HEADER END
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20 */
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21
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22 /*
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23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
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24 * Use is subject to license terms.
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25 */
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26
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27 #ifndef _VDC_H
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28 #define _VDC_H
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29
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30 /*
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31 * Virtual disk client implementation definitions
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32 */
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33
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34 #include <sys/sysmacros.h>
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35 #include <sys/note.h>
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36
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37 #include <sys/ldc.h>
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38 #include <sys/vio_mailbox.h>
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39 #include <sys/vdsk_mailbox.h>
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40 #include <sys/vdsk_common.h>
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41
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42 #ifdef __cplusplus
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43 extern "C" {
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44 #endif
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45
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46 #define VDC_DRIVER_NAME "vdc"
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47
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48 /*
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49 * Bit-field values to indicate if parts of the vdc driver are initialised.
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50 */
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51 #define VDC_SOFT_STATE 0x0001
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52 #define VDC_LOCKS 0x0002
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53 #define VDC_MINOR 0x0004
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54 #define VDC_THREAD 0x0008
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55 #define VDC_DRING_INIT 0x0010 /* The DRing was created */
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56 #define VDC_DRING_BOUND 0x0020 /* The DRing was bound to an LDC channel */
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57 #define VDC_DRING_LOCAL 0x0040 /* The local private DRing was allocated */
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58 #define VDC_DRING_ENTRY 0x0080 /* At least one DRing entry was initialised */
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59 #define VDC_DRING (VDC_DRING_INIT | VDC_DRING_BOUND | \
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60 VDC_DRING_LOCAL | VDC_DRING_ENTRY)
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61 #define VDC_HANDSHAKE 0x0100 /* Indicates if a handshake is in progress */
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62 #define VDC_HANDSHAKE_STOP 0x0200 /* stop further handshakes */
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63
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64 /*
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65 * Definitions of MD nodes/properties.
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66 */
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67 #define VDC_MD_CHAN_NAME "channel-endpoint"
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68 #define VDC_MD_VDEV_NAME "virtual-device"
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69 #define VDC_MD_PORT_NAME "virtual-device-port"
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70 #define VDC_MD_DISK_NAME "disk"
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71 #define VDC_MD_CFG_HDL "cfg-handle"
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72 #define VDC_MD_TIMEOUT "vdc-timeout"
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73 #define VDC_MD_ID "id"
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74
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75 /*
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76 * Definition of actions to be carried out when processing the sequence ID
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77 * of a message received from the vDisk server. The function verifying the
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78 * sequence number checks the 'seq_num_xxx' fields in the soft state and
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79 * returns whether the message should be processed (VDC_SEQ_NUM_TODO) or
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80 * whether it was it was previously processed (VDC_SEQ_NUM_SKIP).
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81 */
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82 #define VDC_SEQ_NUM_INVALID -1 /* Error */
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83 #define VDC_SEQ_NUM_SKIP 0 /* Request already processed */
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84 #define VDC_SEQ_NUM_TODO 1 /* Request needs processing */
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85
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86 /*
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87 * Flags for virtual disk operations.
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88 */
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89 #define VDC_OP_STATE_RUNNING 0x01 /* do operation in running state */
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90 #define VDC_OP_ERRCHK_BACKEND 0x02 /* check backend on error */
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91 #define VDC_OP_ERRCHK_CONFLICT 0x04 /* check resv conflict on error */
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92
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93 #define VDC_OP_ERRCHK (VDC_OP_ERRCHK_BACKEND | VDC_OP_ERRCHK_CONFLICT)
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94 #define VDC_OP_NORMAL (VDC_OP_STATE_RUNNING | VDC_OP_ERRCHK)
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95
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96 /*
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97 * Macros to get UNIT and PART number
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98 */
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99 #define VDCUNIT_SHIFT 3
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100 #define VDCPART_MASK 7
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101
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102 #define VDCUNIT(dev) (getminor((dev)) >> VDCUNIT_SHIFT)
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103 #define VDCPART(dev) (getminor((dev)) & VDCPART_MASK)
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104
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105 /*
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106 * Scheme to store the instance number and the slice number in the minor number.
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107 * (NOTE: Uses the same format and definitions as the sd(7D) driver)
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108 */
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109 #define VD_MAKE_DEV(instance, minor) ((instance << VDCUNIT_SHIFT) | minor)
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110
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111 #define VDC_EFI_DEV_SET(dev, vdsk, ioctl) \
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112 VDSK_EFI_DEV_SET(dev, vdsk, ioctl, \
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113 (vdsk)->vdisk_bsize, (vdsk)->vdisk_size)
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114
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115 /*
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116 * variables controlling how long to wait before timing out and how many
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117 * retries to attempt before giving up when communicating with vds.
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118 *
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119 * These values need to be sufficiently large so that a guest can survive
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120 * the reboot of the service domain.
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121 */
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122 #define VDC_RETRIES 10
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123
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124 #define VDC_USEC_TIMEOUT_MIN (30 * MICROSEC) /* 30 sec */
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125
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126 /*
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127 * This macro returns the number of Hz that the vdc driver should wait before
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128 * a timeout is triggered. The 'timeout' parameter specifiecs the wait
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129 * time in Hz. The 'mul' parameter allows for a multiplier to be
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130 * specified allowing for a backoff to be implemented (e.g. using the
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131 * retry number as a multiplier) where the wait time will get longer if
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132 * there is no response on the previous retry.
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133 */
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134 #define VD_GET_TIMEOUT_HZ(timeout, mul) \
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135 (ddi_get_lbolt() + ((timeout) * MAX(1, (mul))))
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136
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137 /*
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138 * Macros to manipulate Descriptor Ring variables in the soft state
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139 * structure.
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140 */
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141 #define VDC_GET_NEXT_REQ_ID(vdc) ((vdc)->req_id++)
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142
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143 #define VDC_GET_DRING_ENTRY_PTR(vdc, idx) \
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144 (vd_dring_entry_t *)(uintptr_t)((vdc)->dring_mem_info.vaddr + \
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145 (idx * (vdc)->dring_entry_size))
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146
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147 #define VDC_MARK_DRING_ENTRY_FREE(vdc, idx) \
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148 { \
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149 vd_dring_entry_t *dep = NULL; \
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150 ASSERT(vdc != NULL); \
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151 ASSERT(idx < vdc->dring_len); \
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152 ASSERT(vdc->dring_mem_info.vaddr != NULL); \
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153 dep = (vd_dring_entry_t *)(uintptr_t) \
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154 (vdc->dring_mem_info.vaddr + \
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155 (idx * vdc->dring_entry_size)); \
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156 ASSERT(dep != NULL); \
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157 dep->hdr.dstate = VIO_DESC_FREE; \
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158 }
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159
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160 /* Initialise the Session ID and Sequence Num in the DRing msg */
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161 #define VDC_INIT_DRING_DATA_MSG_IDS(dmsg, vdc) \
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162 ASSERT(vdc != NULL); \
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163 dmsg.tag.vio_sid = vdc->session_id; \
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164 dmsg.seq_num = vdc->seq_num;
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165
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166 /*
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167 * The states that the read thread can be in.
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168 */
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169 typedef enum vdc_rd_state {
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170 VDC_READ_IDLE, /* idling - conn is not up */
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171 VDC_READ_WAITING, /* waiting for data */
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172 VDC_READ_PENDING, /* pending data avail for read */
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173 VDC_READ_RESET /* channel was reset - stop reads */
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174 } vdc_rd_state_t;
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175
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176 /*
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177 * The states that the vdc-vds connection can be in.
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178 */
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179 typedef enum vdc_state {
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180 VDC_STATE_INIT, /* device is initialized */
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181 VDC_STATE_INIT_WAITING, /* waiting for ldc connection */
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182 VDC_STATE_NEGOTIATE, /* doing handshake negotiation */
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183 VDC_STATE_HANDLE_PENDING, /* handle requests in backup dring */
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184 VDC_STATE_FAULTED, /* multipath backend is inaccessible */
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185 VDC_STATE_FAILED, /* device is not usable */
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186 VDC_STATE_RUNNING, /* running and accepting requests */
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187 VDC_STATE_DETACH, /* detaching */
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188 VDC_STATE_RESETTING /* resetting connection with vds */
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189 } vdc_state_t;
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190
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191 /*
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192 * States of the service provided by a vds server
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193 */
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194 typedef enum vdc_service_state {
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195 VDC_SERVICE_NONE = -1, /* no state define */
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196 VDC_SERVICE_OFFLINE, /* no connection with the service */
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197 VDC_SERVICE_CONNECTED, /* connection established */
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198 VDC_SERVICE_ONLINE, /* connection and backend available */
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199 VDC_SERVICE_FAILED, /* connection failed */
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200 VDC_SERVICE_FAULTED /* connection but backend unavailable */
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201 } vdc_service_state_t;
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202
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203 /*
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204 * The states that the vdc instance can be in.
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205 */
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206 typedef enum vdc_lc_state {
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207 VDC_LC_ATTACHING, /* driver is attaching */
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208 VDC_LC_ONLINE, /* driver is attached and online */
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209 VDC_LC_DETACHING /* driver is detaching */
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210 } vdc_lc_state_t;
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211
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212 /*
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213 * Local Descriptor Ring entry
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214 *
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215 * vdc creates a Local (private) descriptor ring the same size as the
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216 * public descriptor ring it exports to vds.
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217 */
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218
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219 typedef enum {
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220 VIO_read_dir, /* read data from server */
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221 VIO_write_dir, /* write data to server */
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222 VIO_both_dir /* transfer both in and out in same buffer */
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223 } vio_desc_direction_t;
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224
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225 typedef struct vdc_local_desc {
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226 boolean_t is_free; /* local state - inuse or not */
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227
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228 int operation; /* VD_OP_xxx to be performed */
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229 caddr_t addr; /* addr passed in by consumer */
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230 int slice;
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231 diskaddr_t offset; /* disk offset */
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232 size_t nbytes;
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233 struct buf *buf; /* buf of operation */
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234 vio_desc_direction_t dir; /* direction of transfer */
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235 int flags; /* flags of operation */
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236
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237 caddr_t align_addr; /* used if addr non-aligned */
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238 ldc_mem_handle_t desc_mhdl; /* Mem handle of buf */
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239 vd_dring_entry_t *dep; /* public Dring Entry Pointer */
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240
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241 } vdc_local_desc_t;
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242
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243 /*
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244 * I/O queue used for checking backend or failfast
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245 */
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246 typedef struct vdc_io {
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247 struct vdc_io *vio_next; /* next pending I/O in the queue */
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248 int vio_index; /* descriptor index */
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249 clock_t vio_qtime; /* time the I/O was queued */
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250 } vdc_io_t;
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251
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252 /*
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253 * Per vDisk server channel states
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254 */
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255 #define VDC_LDC_INIT 0x0001
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256 #define VDC_LDC_CB 0x0002
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257 #define VDC_LDC_OPEN 0x0004
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258 #define VDC_LDC (VDC_LDC_INIT | VDC_LDC_CB | VDC_LDC_OPEN)
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259
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260 /*
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261 * vDisk server information
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262 */
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263 typedef struct vdc_server {
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264 struct vdc_server *next; /* Next server */
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265 struct vdc *vdcp; /* Ptr to vdc struct */
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266 uint64_t id; /* Server port id */
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267 uint64_t state; /* Server state */
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268 vdc_service_state_t svc_state; /* Service state */
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269 vdc_service_state_t log_state; /* Last state logged */
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270 uint64_t ldc_id; /* Server LDC id */
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271 ldc_handle_t ldc_handle; /* Server LDC handle */
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272 ldc_status_t ldc_state; /* Server LDC state */
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273 uint64_t ctimeout; /* conn tmout (secs) */
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274 } vdc_server_t;
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275
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276 /*
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277 * vdc soft state structure
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278 */
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279 typedef struct vdc {
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280
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281 kmutex_t lock; /* protects next 2 sections of vars */
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282 kcondvar_t running_cv; /* signal when upper layers can send */
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283 kcondvar_t initwait_cv; /* signal when ldc conn is up */
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284 kcondvar_t dring_free_cv; /* signal when desc is avail */
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285 kcondvar_t membind_cv; /* signal when mem can be bound */
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286 boolean_t self_reset; /* self initiated reset */
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287 kcondvar_t io_pending_cv; /* signal on pending I/O */
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288 boolean_t io_pending; /* pending I/O */
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289
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290 int initialized; /* keeps track of what's init'ed */
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291 vdc_lc_state_t lifecycle; /* Current state of the vdc instance */
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292
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293 int hshake_cnt; /* number of failed handshakes */
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ce6338ba4a73 6531913 vds can lose access to vdisks built from files located on the root fs
achartre
parents: 4848
diff changeset
294 uint8_t open[OTYPCNT]; /* mask of opened slices */
ce6338ba4a73 6531913 vds can lose access to vdisks built from files located on the root fs
achartre
parents: 4848
diff changeset
295 uint8_t open_excl; /* mask of exclusively opened slices */
ce6338ba4a73 6531913 vds can lose access to vdisks built from files located on the root fs
achartre
parents: 4848
diff changeset
296 ulong_t open_lyr[V_NUMPAR]; /* number of layered opens */
2793
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lm66018
parents: 2531
diff changeset
297 int dkio_flush_pending; /* # outstanding DKIO flushes */
4963
ce6338ba4a73 6531913 vds can lose access to vdisks built from files located on the root fs
achartre
parents: 4848
diff changeset
298 int validate_pending; /* # outstanding validate request */
ce6338ba4a73 6531913 vds can lose access to vdisks built from files located on the root fs
achartre
parents: 4848
diff changeset
299 vd_disk_label_t vdisk_label; /* label type of device/disk imported */
7563
84ec90ffc3f7 PSARC/2008/336 Extended VTOC
Prasad Singamsetty <Prasad.Singamsetty@Sun.COM>
parents: 6623
diff changeset
300 struct extvtoc *vtoc; /* structure to store VTOC data */
4963
ce6338ba4a73 6531913 vds can lose access to vdisks built from files located on the root fs
achartre
parents: 4848
diff changeset
301 struct dk_geom *geom; /* structure to store geometry data */
5874
4c514db6bfb0 6528974 Usage of DKIOCGETEFI has changed and impacts vdisks using zfs volumes
achartre
parents: 5658
diff changeset
302 vd_slice_t slice[V_NUMPAR]; /* logical partitions */
2793
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lm66018
parents: 2531
diff changeset
303
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
304 kthread_t *msg_proc_thr; /* main msg processing thread */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
305
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
306 kmutex_t read_lock; /* lock to protect read */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
307 kcondvar_t read_cv; /* cv to wait for READ events */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
308 vdc_rd_state_t read_state; /* current read state */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
309
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
310 uint32_t sync_op_cnt; /* num of active sync operations */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
311 boolean_t sync_op_blocked; /* blocked waiting to do sync op */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
312 kcondvar_t sync_blocked_cv; /* cv wait for other syncs to finish */
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313
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diff changeset
314 uint64_t session_id; /* common ID sent with all messages */
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
315 uint64_t seq_num; /* most recent sequence num generated */
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
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316 uint64_t seq_num_reply; /* Last seq num ACK/NACK'ed by vds */
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
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diff changeset
317 uint64_t req_id; /* Most recent Request ID generated */
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0faef06c73cd 6432376 vds and vdc don't negotiate max transfer size supported correctly
lm66018
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diff changeset
318 uint64_t req_id_proc; /* Last request ID processed by vdc */
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lm66018
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diff changeset
319 vdc_state_t state; /* Current disk client-server state */
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0faef06c73cd 6432376 vds and vdc don't negotiate max transfer size supported correctly
lm66018
parents: 2032
diff changeset
320
0faef06c73cd 6432376 vds and vdc don't negotiate max transfer size supported correctly
lm66018
parents: 2032
diff changeset
321 dev_info_t *dip; /* device info pointer */
0faef06c73cd 6432376 vds and vdc don't negotiate max transfer size supported correctly
lm66018
parents: 2032
diff changeset
322 int instance; /* driver instance number */
2793
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lm66018
parents: 2531
diff changeset
323
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lm66018
parents: 2032
diff changeset
324 vio_ver_t ver; /* version number agreed with server */
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325 vd_disk_type_t vdisk_type; /* type of device/disk being imported */
5365
e9a7403eebeb FWARC 2007/602 VIO vDisk Protocol Updates
lm66018
parents: 4963
diff changeset
326 uint32_t vdisk_media; /* physical media type of vDisk */
2531
65c5d20aa275 6419154 libpcp pcp_init routine should accept service names
narayan
parents: 2410
diff changeset
327 uint64_t vdisk_size; /* device size in blocks */
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heppo
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diff changeset
328 uint64_t max_xfer_sz; /* maximum block size of a descriptor */
9889
68d0fe4c716e PSARC 2008/769 Multiple disk sector size support.
yu, larry liu - Sun Microsystems - Beijing China <Larry.Liu@Sun.COM>
parents: 7563
diff changeset
329 uint64_t vdisk_bsize; /* blk size for the virtual disk */
68d0fe4c716e PSARC 2008/769 Multiple disk sector size support.
yu, larry liu - Sun Microsystems - Beijing China <Larry.Liu@Sun.COM>
parents: 7563
diff changeset
330 uint32_t vio_bmask; /* mask to check vio blk alignment */
68d0fe4c716e PSARC 2008/769 Multiple disk sector size support.
yu, larry liu - Sun Microsystems - Beijing China <Larry.Liu@Sun.COM>
parents: 7563
diff changeset
331 int vio_bshift; /* shift for vio blk conversion */
5365
e9a7403eebeb FWARC 2007/602 VIO vDisk Protocol Updates
lm66018
parents: 4963
diff changeset
332 uint64_t operations; /* bitmask of ops. server supports */
1991
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333 struct dk_cinfo *cinfo; /* structure to store DKIOCINFO data */
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
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334 struct dk_minfo *minfo; /* structure for DKIOCGMEDIAINFO data */
2531
65c5d20aa275 6419154 libpcp pcp_init routine should accept service names
narayan
parents: 2410
diff changeset
335 ddi_devid_t devid; /* device id */
4848
eee1ef6f0e3e FWARC 2007/363 VIO vDisk MD node updates
achartre
parents: 3078
diff changeset
336 boolean_t ctimeout_reached; /* connection timeout has expired */
1991
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337
5658
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
338 /*
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
339 * The ownership fields are protected by the lock mutex. The
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
340 * ownership_lock mutex is used to serialize ownership operations;
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
341 * it should be acquired before the lock mutex.
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
342 */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
343 kmutex_t ownership_lock; /* serialize ownership ops */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
344 int ownership; /* ownership status flags */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
345 kthread_t *ownership_thread; /* ownership thread */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
346 kcondvar_t ownership_cv; /* cv for ownership update */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
347
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
348 /*
10812
c6175c150216 6726533 vdisk failover should handle storage/storage-path failures (a la mpxio)
Alexandre Chartre <Alexandre.Chartre@Sun.COM>
parents: 9889
diff changeset
349 * The eio and failfast fields are protected by the lock mutex.
5658
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
350 */
10812
c6175c150216 6726533 vdisk failover should handle storage/storage-path failures (a la mpxio)
Alexandre Chartre <Alexandre.Chartre@Sun.COM>
parents: 9889
diff changeset
351 kthread_t *eio_thread; /* error io thread */
c6175c150216 6726533 vdisk failover should handle storage/storage-path failures (a la mpxio)
Alexandre Chartre <Alexandre.Chartre@Sun.COM>
parents: 9889
diff changeset
352 kcondvar_t eio_cv; /* cv for eio thread update */
c6175c150216 6726533 vdisk failover should handle storage/storage-path failures (a la mpxio)
Alexandre Chartre <Alexandre.Chartre@Sun.COM>
parents: 9889
diff changeset
353 vdc_io_t *eio_queue; /* error io queue */
5658
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
354 clock_t failfast_interval; /* interval in microsecs */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
355
6099
b338715e1b52 6503157 guest domain I/O statistics need to be made available to iostat(1M)
lm66018
parents: 5874
diff changeset
356 /*
b338715e1b52 6503157 guest domain I/O statistics need to be made available to iostat(1M)
lm66018
parents: 5874
diff changeset
357 * kstats used to store I/O statistics consumed by iostat(1M).
b338715e1b52 6503157 guest domain I/O statistics need to be made available to iostat(1M)
lm66018
parents: 5874
diff changeset
358 * These are protected by the lock mutex.
b338715e1b52 6503157 guest domain I/O statistics need to be made available to iostat(1M)
lm66018
parents: 5874
diff changeset
359 */
b338715e1b52 6503157 guest domain I/O statistics need to be made available to iostat(1M)
lm66018
parents: 5874
diff changeset
360 kstat_t *io_stats;
b338715e1b52 6503157 guest domain I/O statistics need to be made available to iostat(1M)
lm66018
parents: 5874
diff changeset
361 kstat_t *err_stats;
b338715e1b52 6503157 guest domain I/O statistics need to be made available to iostat(1M)
lm66018
parents: 5874
diff changeset
362
6480
d50f51fd3502 6622004 vdc should support multi-pathing using multiple vdisk servers
narayan
parents: 6099
diff changeset
363 ldc_dring_handle_t dring_hdl; /* dring handle */
2793
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
364 ldc_mem_info_t dring_mem_info; /* dring information */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
365 uint_t dring_curr_idx; /* current index */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
366 uint32_t dring_len; /* dring length */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
367 uint32_t dring_max_cookies; /* dring max cookies */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
368 uint32_t dring_cookie_count; /* num cookies */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
369 uint32_t dring_entry_size; /* descriptor size */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
370 ldc_mem_cookie_t *dring_cookie; /* dring cookies */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
371 uint64_t dring_ident; /* dring ident */
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diff changeset
372
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lm66018
parents: 2531
diff changeset
373 uint64_t threads_pending; /* num of threads */
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heppo
parents:
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374
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a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
375 vdc_local_desc_t *local_dring; /* local dring */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
376 vdc_local_desc_t *local_dring_backup; /* local dring backup */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
377 int local_dring_backup_tail; /* backup dring tail */
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
378 int local_dring_backup_len; /* backup dring len */
1991
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heppo
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diff changeset
379
6480
d50f51fd3502 6622004 vdc should support multi-pathing using multiple vdisk servers
narayan
parents: 6099
diff changeset
380 int num_servers; /* no. of servers */
d50f51fd3502 6622004 vdc should support multi-pathing using multiple vdisk servers
narayan
parents: 6099
diff changeset
381 vdc_server_t *server_list; /* vdisk server list */
d50f51fd3502 6622004 vdc should support multi-pathing using multiple vdisk servers
narayan
parents: 6099
diff changeset
382 vdc_server_t *curr_server; /* curr vdisk server */
1991
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diff changeset
383 } vdc_t;
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
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384
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
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parents:
diff changeset
385 /*
5658
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
386 * Ownership status flags
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
387 */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
388 #define VDC_OWNERSHIP_NONE 0x00 /* no ownership wanted */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
389 #define VDC_OWNERSHIP_WANTED 0x01 /* ownership is wanted */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
390 #define VDC_OWNERSHIP_GRANTED 0x02 /* ownership has been granted */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
391 #define VDC_OWNERSHIP_RESET 0x04 /* ownership has been reset */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
392
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
393 /*
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
394 * Reservation conflict panic message
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
395 */
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
396 #define VDC_RESV_CONFLICT_FMT_STR "Reservation Conflict\nDisk: "
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
397 #define VDC_RESV_CONFLICT_FMT_LEN (sizeof (VDC_RESV_CONFLICT_FMT_STR))
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
398
73d21dd02285 FWARC 2007/672 VIO vDisk Protocol Updates
achartre
parents: 5365
diff changeset
399 /*
1991
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
400 * Debugging macros
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
401 */
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
402 #ifdef DEBUG
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
403 extern int vdc_msglevel;
2793
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
404 extern uint64_t vdc_matchinst;
1991
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
405
2793
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
406 #define DMSG(_vdc, err_level, format, ...) \
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
407 do { \
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
408 if (vdc_msglevel > err_level && \
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
409 (vdc_matchinst & (1ull << (_vdc)->instance))) \
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
410 cmn_err(CE_CONT, "?[%d,t@%p] %s: "format, \
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
411 (_vdc)->instance, (void *)curthread, \
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
412 __func__, __VA_ARGS__); \
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
413 _NOTE(CONSTANTCONDITION) \
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
414 } while (0);
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
415
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
416 #define DMSGX(err_level, format, ...) \
2410
0faef06c73cd 6432376 vds and vdc don't negotiate max transfer size supported correctly
lm66018
parents: 2032
diff changeset
417 do { \
0faef06c73cd 6432376 vds and vdc don't negotiate max transfer size supported correctly
lm66018
parents: 2032
diff changeset
418 if (vdc_msglevel > err_level) \
2793
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
419 cmn_err(CE_CONT, "?%s: "format, __func__, __VA_ARGS__);\
2410
0faef06c73cd 6432376 vds and vdc don't negotiate max transfer size supported correctly
lm66018
parents: 2032
diff changeset
420 _NOTE(CONSTANTCONDITION) \
0faef06c73cd 6432376 vds and vdc don't negotiate max transfer size supported correctly
lm66018
parents: 2032
diff changeset
421 } while (0);
1991
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
422
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
423 #define VDC_DUMP_DRING_MSG(dmsgp) \
2793
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
424 DMSGX(0, "sq:%lu start:%d end:%d ident:%lu\n", \
1991
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
425 dmsgp->seq_num, dmsgp->start_idx, \
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
426 dmsgp->end_idx, dmsgp->dring_ident);
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
427
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
428 #else /* !DEBUG */
2410
0faef06c73cd 6432376 vds and vdc don't negotiate max transfer size supported correctly
lm66018
parents: 2032
diff changeset
429 #define DMSG(err_level, ...)
2793
a30c4090b49f 6458676 memory leak with 12 hours all_solaris_tests.
lm66018
parents: 2531
diff changeset
430 #define DMSGX(err_level, format, ...)
1991
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
431 #define VDC_DUMP_DRING_MSG(dmsgp)
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
432
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
433 #endif /* !DEBUG */
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
434
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
435 #ifdef __cplusplus
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
436 }
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
diff changeset
437 #endif
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
heppo
parents:
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438
f29baf5bf770 FWARC 2005/633 Project Q Logial Domaining Umbrella
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439 #endif /* _VDC_H */