author | Florian Westphal <fw@strlen.de> |
Sun, 11 Jan 2009 20:20:11 +0100 | |
changeset 0 | aa628870c1d3 |
child 2 | d1f6d8b6f81c |
permissions | -rw-r--r-- |
0
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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/* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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* This file is subject to the terms and conditions of the GNU General Public |
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Port of Linux 2.6.28 for use with network simulation cradle.
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* License. See the file "COPYING" in the main directory of this archive |
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Port of Linux 2.6.28 for use with network simulation cradle.
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* for more details. |
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Port of Linux 2.6.28 for use with network simulation cradle.
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* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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* SGI UV Broadcast Assist Unit definitions |
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Port of Linux 2.6.28 for use with network simulation cradle.
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* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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* Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved. |
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Port of Linux 2.6.28 for use with network simulation cradle.
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*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
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Port of Linux 2.6.28 for use with network simulation cradle.
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#ifndef _ASM_X86_UV_UV_BAU_H |
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#define _ASM_X86_UV_UV_BAU_H |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
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Port of Linux 2.6.28 for use with network simulation cradle.
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#include <linux/bitmap.h> |
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#define BITSPERBYTE 8 |
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|
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/* |
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* Broadcast Assist Unit messaging structures |
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* |
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* Selective Broadcast activations are induced by software action |
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* specifying a particular 8-descriptor "set" via a 6-bit index written |
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* to an MMR. |
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* Thus there are 64 unique 512-byte sets of SB descriptors - one set for |
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* each 6-bit index value. These descriptor sets are mapped in sequence |
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* starting with set 0 located at the address specified in the |
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* BAU_SB_DESCRIPTOR_BASE register, set 1 is located at BASE + 512, |
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* set 2 is at BASE + 2*512, set 3 at BASE + 3*512, and so on. |
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* |
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* We will use 31 sets, one for sending BAU messages from each of the 32 |
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* cpu's on the node. |
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* |
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* TLB shootdown will use the first of the 8 descriptors of each set. |
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* Each of the descriptors is 64 bytes in size (8*64 = 512 bytes in a set). |
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*/ |
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|
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#define UV_ITEMS_PER_DESCRIPTOR 8 |
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#define UV_CPUS_PER_ACT_STATUS 32 |
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#define UV_ACT_STATUS_MASK 0x3 |
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#define UV_ACT_STATUS_SIZE 2 |
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#define UV_ACTIVATION_DESCRIPTOR_SIZE 32 |
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#define UV_DISTRIBUTION_SIZE 256 |
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#define UV_SW_ACK_NPENDING 8 |
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#define UV_NET_ENDPOINT_INTD 0x38 |
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#define UV_DESC_BASE_PNODE_SHIFT 49 |
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#define UV_PAYLOADQ_PNODE_SHIFT 49 |
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#define UV_PTC_BASENAME "sgi_uv/ptc_statistics" |
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#define uv_physnodeaddr(x) ((__pa((unsigned long)(x)) & uv_mmask)) |
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|
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/* |
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* bits in UVH_LB_BAU_SB_ACTIVATION_STATUS_0/1 |
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*/ |
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#define DESC_STATUS_IDLE 0 |
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#define DESC_STATUS_ACTIVE 1 |
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#define DESC_STATUS_DESTINATION_TIMEOUT 2 |
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#define DESC_STATUS_SOURCE_TIMEOUT 3 |
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|
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/* |
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* source side threshholds at which message retries print a warning |
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*/ |
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#define SOURCE_TIMEOUT_LIMIT 20 |
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#define DESTINATION_TIMEOUT_LIMIT 20 |
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|
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/* |
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* number of entries in the destination side payload queue |
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*/ |
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#define DEST_Q_SIZE 17 |
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/* |
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* number of destination side software ack resources |
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*/ |
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#define DEST_NUM_RESOURCES 8 |
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#define MAX_CPUS_PER_NODE 32 |
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/* |
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* completion statuses for sending a TLB flush message |
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*/ |
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#define FLUSH_RETRY 1 |
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#define FLUSH_GIVEUP 2 |
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#define FLUSH_COMPLETE 3 |
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|
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/* |
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* Distribution: 32 bytes (256 bits) (bytes 0-0x1f of descriptor) |
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* If the 'multilevel' flag in the header portion of the descriptor |
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* has been set to 0, then endpoint multi-unicast mode is selected. |
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* The distribution specification (32 bytes) is interpreted as a 256-bit |
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* distribution vector. Adjacent bits correspond to consecutive even numbered |
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* nodeIDs. The result of adding the index of a given bit to the 15-bit |
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* 'base_dest_nodeid' field of the header corresponds to the |
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* destination nodeID associated with that specified bit. |
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*/ |
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struct bau_target_nodemask { |
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unsigned long bits[BITS_TO_LONGS(256)]; |
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}; |
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|
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/* |
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* mask of cpu's on a node |
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* (during initialization we need to check that unsigned long has |
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* enough bits for max. cpu's per node) |
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*/ |
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struct bau_local_cpumask { |
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unsigned long bits; |
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}; |
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|
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/* |
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* Payload: 16 bytes (128 bits) (bytes 0x20-0x2f of descriptor) |
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* only 12 bytes (96 bits) of the payload area are usable. |
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* An additional 3 bytes (bits 27:4) of the header address are carried |
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* to the next bytes of the destination payload queue. |
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* And an additional 2 bytes of the header Suppl_A field are also |
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* carried to the destination payload queue. |
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* But the first byte of the Suppl_A becomes bits 127:120 (the 16th byte) |
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* of the destination payload queue, which is written by the hardware |
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* with the s/w ack resource bit vector. |
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112 |
* [ effective message contents (16 bytes (128 bits) maximum), not counting |
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113 |
* the s/w ack bit vector ] |
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114 |
*/ |
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115 |
|
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116 |
/* |
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117 |
* The payload is software-defined for INTD transactions |
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118 |
*/ |
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119 |
struct bau_msg_payload { |
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120 |
unsigned long address; /* signifies a page or all TLB's |
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121 |
of the cpu */ |
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122 |
/* 64 bits */ |
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123 |
unsigned short sending_cpu; /* filled in by sender */ |
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/* 16 bits */ |
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125 |
unsigned short acknowledge_count;/* filled in by destination */ |
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126 |
/* 16 bits */ |
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127 |
unsigned int reserved1:32; /* not usable */ |
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128 |
}; |
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129 |
|
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130 |
|
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131 |
/* |
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132 |
* Message header: 16 bytes (128 bits) (bytes 0x30-0x3f of descriptor) |
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133 |
* see table 4.2.3.0.1 in broacast_assist spec. |
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134 |
*/ |
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135 |
struct bau_msg_header { |
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136 |
int dest_subnodeid:6; /* must be zero */ |
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137 |
/* bits 5:0 */ |
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int base_dest_nodeid:15; /* nasid>>1 (pnode) of first bit in node_map */ |
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139 |
/* bits 20:6 */ |
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140 |
int command:8; /* message type */ |
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141 |
/* bits 28:21 */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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142 |
/* 0x38: SN3net EndPoint Message */ |
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143 |
int rsvd_1:3; /* must be zero */ |
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144 |
/* bits 31:29 */ |
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145 |
/* int will align on 32 bits */ |
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146 |
int rsvd_2:9; /* must be zero */ |
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147 |
/* bits 40:32 */ |
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148 |
/* Suppl_A is 56-41 */ |
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int payload_2a:8; /* becomes byte 16 of msg */ |
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150 |
/* bits 48:41 */ /* not currently using */ |
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151 |
int payload_2b:8; /* becomes byte 17 of msg */ |
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152 |
/* bits 56:49 */ /* not currently using */ |
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153 |
/* Address field (96:57) is never used as an |
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154 |
address (these are address bits 42:3) */ |
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155 |
int rsvd_3:1; /* must be zero */ |
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156 |
/* bit 57 */ |
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157 |
/* address bits 27:4 are payload */ |
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158 |
/* these 24 bits become bytes 12-14 of msg */ |
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159 |
int replied_to:1; /* sent as 0 by the source to byte 12 */ |
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160 |
/* bit 58 */ |
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161 |
|
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162 |
int payload_1a:5; /* not currently used */ |
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163 |
/* bits 63:59 */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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164 |
int payload_1b:8; /* not currently used */ |
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165 |
/* bits 71:64 */ |
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166 |
int payload_1c:8; /* not currently used */ |
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167 |
/* bits 79:72 */ |
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|
168 |
int payload_1d:2; /* not currently used */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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169 |
/* bits 81:80 */ |
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170 |
|
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171 |
int rsvd_4:7; /* must be zero */ |
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172 |
/* bits 88:82 */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
173 |
int sw_ack_flag:1; /* software acknowledge flag */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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174 |
/* bit 89 */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
175 |
/* INTD trasactions at destination are to |
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Port of Linux 2.6.28 for use with network simulation cradle.
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176 |
wait for software acknowledge */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
177 |
int rsvd_5:6; /* must be zero */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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178 |
/* bits 95:90 */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
179 |
int rsvd_6:5; /* must be zero */ |
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|
180 |
/* bits 100:96 */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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181 |
int int_both:1; /* if 1, interrupt both sockets on the blade */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
182 |
/* bit 101*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
183 |
int fairness:3; /* usually zero */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
184 |
/* bits 104:102 */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
185 |
int multilevel:1; /* multi-level multicast format */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
186 |
/* bit 105 */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
187 |
/* 0 for TLB: endpoint multi-unicast messages */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
188 |
int chaining:1; /* next descriptor is part of this activation*/ |
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parents:
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|
189 |
/* bit 106 */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
190 |
int rsvd_7:21; /* must be zero */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
191 |
/* bits 127:107 */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
192 |
}; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
193 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
194 |
/* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
195 |
* The activation descriptor: |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
196 |
* The format of the message to send, plus all accompanying control |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
197 |
* Should be 64 bytes |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
198 |
*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
199 |
struct bau_desc { |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
200 |
struct bau_target_nodemask distribution; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
201 |
/* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
202 |
* message template, consisting of header and payload: |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
203 |
*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
204 |
struct bau_msg_header header; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
205 |
struct bau_msg_payload payload; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
206 |
}; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
207 |
/* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
208 |
* -payload-- ---------header------ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
209 |
* bytes 0-11 bits 41-56 bits 58-81 |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
210 |
* A B (2) C (3) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
211 |
* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
212 |
* A/B/C are moved to: |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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213 |
* A C B |
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Port of Linux 2.6.28 for use with network simulation cradle.
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214 |
* bytes 0-11 bytes 12-14 bytes 16-17 (byte 15 filled in by hw as vector) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
215 |
* ------------payload queue----------- |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
216 |
*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
217 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
218 |
/* |
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|
219 |
* The payload queue on the destination side is an array of these. |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
220 |
* With BAU_MISC_CONTROL set for software acknowledge mode, the messages |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
221 |
* are 32 bytes (2 micropackets) (256 bits) in length, but contain only 17 |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
222 |
* bytes of usable data, including the sw ack vector in byte 15 (bits 127:120) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
223 |
* (12 bytes come from bau_msg_payload, 3 from payload_1, 2 from |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
224 |
* sw_ack_vector and payload_2) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
225 |
* "Enabling Software Acknowledgment mode (see Section 4.3.3 Software |
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Port of Linux 2.6.28 for use with network simulation cradle.
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226 |
* Acknowledge Processing) also selects 32 byte (17 bytes usable) payload |
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* operation." |
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*/ |
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struct bau_payload_queue_entry { |
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unsigned long address; /* signifies a page or all TLB's |
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of the cpu */ |
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/* 64 bits, bytes 0-7 */ |
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|
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unsigned short sending_cpu; /* cpu that sent the message */ |
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/* 16 bits, bytes 8-9 */ |
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|
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unsigned short acknowledge_count; /* filled in by destination */ |
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/* 16 bits, bytes 10-11 */ |
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|
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unsigned short replied_to:1; /* sent as 0 by the source */ |
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/* 1 bit */ |
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unsigned short unused1:7; /* not currently using */ |
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/* 7 bits: byte 12) */ |
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|
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unsigned char unused2[2]; /* not currently using */ |
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/* bytes 13-14 */ |
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unsigned char sw_ack_vector; /* filled in by the hardware */ |
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/* byte 15 (bits 127:120) */ |
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|
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unsigned char unused4[3]; /* not currently using bytes 17-19 */ |
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/* bytes 17-19 */ |
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int number_of_cpus; /* filled in at destination */ |
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/* 32 bits, bytes 20-23 (aligned) */ |
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|
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unsigned char unused5[8]; /* not using */ |
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/* bytes 24-31 */ |
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}; |
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|
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/* |
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* one for every slot in the destination payload queue |
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*/ |
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struct bau_msg_status { |
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struct bau_local_cpumask seen_by; /* map of cpu's */ |
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}; |
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|
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/* |
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* one for every slot in the destination software ack resources |
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*/ |
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struct bau_sw_ack_status { |
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struct bau_payload_queue_entry *msg; /* associated message */ |
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int watcher; /* cpu monitoring, or -1 */ |
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}; |
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|
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/* |
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* one on every node and per-cpu; to locate the software tables |
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*/ |
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struct bau_control { |
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struct bau_desc *descriptor_base; |
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struct bau_payload_queue_entry *bau_msg_head; |
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struct bau_payload_queue_entry *va_queue_first; |
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struct bau_payload_queue_entry *va_queue_last; |
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struct bau_msg_status *msg_statuses; |
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int *watching; /* pointer to array */ |
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}; |
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|
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/* |
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* This structure is allocated per_cpu for UV TLB shootdown statistics. |
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*/ |
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struct ptc_stats { |
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unsigned long ptc_i; /* number of IPI-style flushes */ |
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unsigned long requestor; /* number of nodes this cpu sent to */ |
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unsigned long requestee; /* times cpu was remotely requested */ |
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unsigned long alltlb; /* times all tlb's on this cpu were flushed */ |
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unsigned long onetlb; /* times just one tlb on this cpu was flushed */ |
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unsigned long s_retry; /* retries on source side timeouts */ |
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unsigned long d_retry; /* retries on destination side timeouts */ |
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unsigned long sflush; /* cycles spent in uv_flush_tlb_others */ |
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unsigned long dflush; /* cycles spent on destination side */ |
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unsigned long retriesok; /* successes on retries */ |
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unsigned long nomsg; /* interrupts with no message */ |
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unsigned long multmsg; /* interrupts with multiple messages */ |
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unsigned long ntargeted;/* nodes targeted */ |
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305 |
}; |
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|
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static inline int bau_node_isset(int node, struct bau_target_nodemask *dstp) |
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{ |
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return constant_test_bit(node, &dstp->bits[0]); |
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} |
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static inline void bau_node_set(int node, struct bau_target_nodemask *dstp) |
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{ |
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__set_bit(node, &dstp->bits[0]); |
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314 |
} |
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static inline void bau_nodes_clear(struct bau_target_nodemask *dstp, int nbits) |
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{ |
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bitmap_zero(&dstp->bits[0], nbits); |
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} |
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|
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static inline void bau_cpubits_clear(struct bau_local_cpumask *dstp, int nbits) |
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{ |
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bitmap_zero(&dstp->bits, nbits); |
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} |
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|
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#define cpubit_isset(cpu, bau_local_cpumask) \ |
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test_bit((cpu), (bau_local_cpumask).bits) |
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|
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extern int uv_flush_tlb_others(cpumask_t *, struct mm_struct *, unsigned long); |
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extern void uv_bau_message_intr1(void); |
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extern void uv_bau_timeout_intr1(void); |
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|
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332 |
#endif /* _ASM_X86_UV_UV_BAU_H */ |