drivers/infiniband/hw/qib/qib_mad.h

   1 /*
   2  * Copyright (c) 2012 Intel Corporation.  All rights reserved.
   3  * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved.
   4  * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved.
   5  *
   6  * This software is available to you under a choice of one of two
   7  * licenses.  You may choose to be licensed under the terms of the GNU
   8  * General Public License (GPL) Version 2, available from the file
   9  * COPYING in the main directory of this source tree, or the
  10  * OpenIB.org BSD license below:
  11  *
  12  *     Redistribution and use in source and binary forms, with or
  13  *     without modification, are permitted provided that the following
  14  *     conditions are met:
  15  *
  16  *      - Redistributions of source code must retain the above
  17  *        copyright notice, this list of conditions and the following
  18  *        disclaimer.
  19  *
  20  *      - Redistributions in binary form must reproduce the above
  21  *        copyright notice, this list of conditions and the following
  22  *        disclaimer in the documentation and/or other materials
  23  *        provided with the distribution.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32  * SOFTWARE.
  33  */
  34 #ifndef _QIB_MAD_H
  35 #define _QIB_MAD_H
  36
  37 #include <rdma/ib_pma.h>
  38
  39 #define IB_SMP_UNSUP_VERSION \
  40 cpu_to_be16(IB_MGMT_MAD_STATUS_BAD_VERSION)
  41
  42 #define IB_SMP_UNSUP_METHOD \
  43 cpu_to_be16(IB_MGMT_MAD_STATUS_UNSUPPORTED_METHOD)
  44
  45 #define IB_SMP_UNSUP_METH_ATTR \
  46 cpu_to_be16(IB_MGMT_MAD_STATUS_UNSUPPORTED_METHOD_ATTRIB)
  47
  48 #define IB_SMP_INVALID_FIELD \
  49 cpu_to_be16(IB_MGMT_MAD_STATUS_INVALID_ATTRIB_VALUE)
  50
  51 #define IB_VLARB_LOWPRI_0_31    1
  52 #define IB_VLARB_LOWPRI_32_63   2
  53 #define IB_VLARB_HIGHPRI_0_31   3
  54 #define IB_VLARB_HIGHPRI_32_63  4
  55
  56 #define IB_PMA_PORT_COUNTERS_CONG       cpu_to_be16(0xFF00)
  57
  58 struct ib_pma_portcounters_cong {
  59         u8 reserved;
  60         u8 reserved1;
  61         __be16 port_check_rate;
  62         __be16 symbol_error_counter;
  63         u8 link_error_recovery_counter;
  64         u8 link_downed_counter;
  65         __be16 port_rcv_errors;
  66         __be16 port_rcv_remphys_errors;
  67         __be16 port_rcv_switch_relay_errors;
  68         __be16 port_xmit_discards;
  69         u8 port_xmit_constraint_errors;
  70         u8 port_rcv_constraint_errors;
  71         u8 reserved2;
  72         u8 link_overrun_errors; /* LocalLink: 7:4, BufferOverrun: 3:0 */
  73         __be16 reserved3;
  74         __be16 vl15_dropped;
  75         __be64 port_xmit_data;
  76         __be64 port_rcv_data;
  77         __be64 port_xmit_packets;
  78         __be64 port_rcv_packets;
  79         __be64 port_xmit_wait;
  80         __be64 port_adr_events;
  81 } __packed;
  82
  83 #define IB_PMA_CONG_HW_CONTROL_TIMER            0x00
  84 #define IB_PMA_CONG_HW_CONTROL_SAMPLE           0x01
  85
  86 #define QIB_XMIT_RATE_UNSUPPORTED               0x0
  87 #define QIB_XMIT_RATE_PICO                      0x7
  88 /* number of 4nsec cycles equaling 2secs */
  89 #define QIB_CONG_TIMER_PSINTERVAL               0x1DCD64EC
  90
  91 #define IB_PMA_SEL_CONG_ALL                     0x01
  92 #define IB_PMA_SEL_CONG_PORT_DATA               0x02
  93 #define IB_PMA_SEL_CONG_XMIT                    0x04
  94 #define IB_PMA_SEL_CONG_ROUTING                 0x08
  95
  96 /*
  97  * Congestion control class attributes
  98  */
  99 #define IB_CC_ATTR_CLASSPORTINFO                        cpu_to_be16(0x0001)
 100 #define IB_CC_ATTR_NOTICE                               cpu_to_be16(0x0002)
 101 #define IB_CC_ATTR_CONGESTION_INFO                      cpu_to_be16(0x0011)
 102 #define IB_CC_ATTR_CONGESTION_KEY_INFO                  cpu_to_be16(0x0012)
 103 #define IB_CC_ATTR_CONGESTION_LOG                       cpu_to_be16(0x0013)
 104 #define IB_CC_ATTR_SWITCH_CONGESTION_SETTING            cpu_to_be16(0x0014)
 105 #define IB_CC_ATTR_SWITCH_PORT_CONGESTION_SETTING       cpu_to_be16(0x0015)
 106 #define IB_CC_ATTR_CA_CONGESTION_SETTING                cpu_to_be16(0x0016)
 107 #define IB_CC_ATTR_CONGESTION_CONTROL_TABLE             cpu_to_be16(0x0017)
 108 #define IB_CC_ATTR_TIME_STAMP                           cpu_to_be16(0x0018)
 109
 110 /* generalizations for threshold values */
 111 #define IB_CC_THRESHOLD_NONE 0x0
 112 #define IB_CC_THRESHOLD_MIN  0x1
 113 #define IB_CC_THRESHOLD_MAX  0xf
 114
 115 /* CCA MAD header constants */
 116 #define IB_CC_MAD_LOGDATA_LEN 32
 117 #define IB_CC_MAD_MGMTDATA_LEN 192
 118
 119 struct ib_cc_mad {
 120         u8      base_version;
 121         u8      mgmt_class;
 122         u8      class_version;
 123         u8      method;
 124         __be16  status;
 125         __be16  class_specific;
 126         __be64  tid;
 127         __be16  attr_id;
 128         __be16  resv;
 129         __be32  attr_mod;
 130         __be64 cckey;
 131
 132         /* For CongestionLog attribute only */
 133         u8 log_data[IB_CC_MAD_LOGDATA_LEN];
 134
 135         u8 mgmt_data[IB_CC_MAD_MGMTDATA_LEN];
 136 } __packed;
 137
 138 /*
 139  * Congestion Control class portinfo capability mask bits
 140  */
 141 #define IB_CC_CPI_CM_TRAP_GEN           cpu_to_be16(1 << 0)
 142 #define IB_CC_CPI_CM_GET_SET_NOTICE     cpu_to_be16(1 << 1)
 143 #define IB_CC_CPI_CM_CAP2               cpu_to_be16(1 << 2)
 144 #define IB_CC_CPI_CM_ENHANCEDPORT0_CC   cpu_to_be16(1 << 8)
 145
 146 struct ib_cc_classportinfo_attr {
 147         u8 base_version;
 148         u8 class_version;
 149         __be16 cap_mask;
 150         u8 reserved[3];
 151         u8 resp_time_value;     /* only lower 5 bits */
 152         union ib_gid redirect_gid;
 153         __be32 redirect_tc_sl_fl;       /* 8, 4, 20 bits respectively */
 154         __be16 redirect_lid;
 155         __be16 redirect_pkey;
 156         __be32 redirect_qp;     /* only lower 24 bits */
 157         __be32 redirect_qkey;
 158         union ib_gid trap_gid;
 159         __be32 trap_tc_sl_fl;   /* 8, 4, 20 bits respectively */
 160         __be16 trap_lid;
 161         __be16 trap_pkey;
 162         __be32 trap_hl_qp;      /* 8, 24 bits respectively */
 163         __be32 trap_qkey;
 164 } __packed;
 165
 166 /* Congestion control traps */
 167 #define IB_CC_TRAP_KEY_VIOLATION 0x0000
 168
 169 struct ib_cc_trap_key_violation_attr {
 170         __be16 source_lid;
 171         u8 method;
 172         u8 reserved1;
 173         __be16 attrib_id;
 174         __be32 attrib_mod;
 175         __be32 qp;
 176         __be64 cckey;
 177         u8 sgid[16];
 178         u8 padding[24];
 179 } __packed;
 180
 181 /* Congestion info flags */
 182 #define IB_CC_CI_FLAGS_CREDIT_STARVATION 0x1
 183 #define IB_CC_TABLE_CAP_DEFAULT 31
 184
 185 struct ib_cc_info_attr {
 186         __be16 congestion_info;
 187         u8  control_table_cap; /* Multiple of 64 entry unit CCTs */
 188 } __packed;
 189
 190 struct ib_cc_key_info_attr {
 191         __be64 cckey;
 192         u8  protect;
 193         __be16 lease_period;
 194         __be16 violations;
 195 } __packed;
 196
 197 #define IB_CC_CL_CA_LOGEVENTS_LEN 208
 198
 199 struct ib_cc_log_attr {
 200         u8 log_type;
 201         u8 congestion_flags;
 202         __be16 threshold_event_counter;
 203         __be16 threshold_congestion_event_map;
 204         __be16 current_time_stamp;
 205         u8 log_events[IB_CC_CL_CA_LOGEVENTS_LEN];
 206 } __packed;
 207
 208 #define IB_CC_CLEC_SERVICETYPE_RC 0x0
 209 #define IB_CC_CLEC_SERVICETYPE_UC 0x1
 210 #define IB_CC_CLEC_SERVICETYPE_RD 0x2
 211 #define IB_CC_CLEC_SERVICETYPE_UD 0x3
 212
 213 struct ib_cc_log_event {
 214         u8 local_qp_cn_entry;
 215         u8 remote_qp_number_cn_entry[3];
 216         u8  sl_cn_entry:4;
 217         u8  service_type_cn_entry:4;
 218         __be32 remote_lid_cn_entry;
 219         __be32 timestamp_cn_entry;
 220 } __packed;
 221
 222 /* Sixteen congestion entries */
 223 #define IB_CC_CCS_ENTRIES 16
 224
 225 /* Port control flags */
 226 #define IB_CC_CCS_PC_SL_BASED 0x01
 227
 228 struct ib_cc_congestion_entry {
 229         u8 ccti_increase;
 230         __be16 ccti_timer;
 231         u8 trigger_threshold;
 232         u8 ccti_min; /* min CCTI for cc table */
 233 } __packed;
 234
 235 struct ib_cc_congestion_entry_shadow {
 236         u8 ccti_increase;
 237         u16 ccti_timer;
 238         u8 trigger_threshold;
 239         u8 ccti_min; /* min CCTI for cc table */
 240 } __packed;
 241
 242 struct ib_cc_congestion_setting_attr {
 243         __be16 port_control;
 244         __be16 control_map;
 245         struct ib_cc_congestion_entry entries[IB_CC_CCS_ENTRIES];
 246 } __packed;
 247
 248 struct ib_cc_congestion_setting_attr_shadow {
 249         u16 port_control;
 250         u16 control_map;
 251         struct ib_cc_congestion_entry_shadow entries[IB_CC_CCS_ENTRIES];
 252 } __packed;
 253
 254 #define IB_CC_TABLE_ENTRY_INCREASE_DEFAULT 1
 255 #define IB_CC_TABLE_ENTRY_TIMER_DEFAULT 1
 256
 257 /* 64 Congestion Control table entries in a single MAD */
 258 #define IB_CCT_ENTRIES 64
 259 #define IB_CCT_MIN_ENTRIES (IB_CCT_ENTRIES * 2)
 260
 261 struct ib_cc_table_entry {
 262         __be16 entry; /* shift:2, multiplier:14 */
 263 };
 264
 265 struct ib_cc_table_entry_shadow {
 266         u16 entry; /* shift:2, multiplier:14 */
 267 };
 268
 269 struct ib_cc_table_attr {
 270         __be16 ccti_limit; /* max CCTI for cc table */
 271         struct ib_cc_table_entry ccti_entries[IB_CCT_ENTRIES];
 272 } __packed;
 273
 274 struct ib_cc_table_attr_shadow {
 275         u16 ccti_limit; /* max CCTI for cc table */
 276         struct ib_cc_table_entry_shadow ccti_entries[IB_CCT_ENTRIES];
 277 } __packed;
 278
 279 #define CC_TABLE_SHADOW_MAX \
 280         (IB_CC_TABLE_CAP_DEFAULT * IB_CCT_ENTRIES)
 281
 282 struct cc_table_shadow {
 283         u16 ccti_last_entry;
 284         struct ib_cc_table_entry_shadow entries[CC_TABLE_SHADOW_MAX];
 285 } __packed;
 286
 287 /*
 288  * The PortSamplesControl.CounterMasks field is an array of 3 bit fields
 289  * which specify the N'th counter's capabilities. See ch. 16.1.3.2.
 290  * We support 5 counters which only count the mandatory quantities.
 291  */
 292 #define COUNTER_MASK(q, n) (q << ((9 - n) * 3))
 293 #define COUNTER_MASK0_9 \
 294         cpu_to_be32(COUNTER_MASK(1, 0) | \
 295                     COUNTER_MASK(1, 1) | \
 296                     COUNTER_MASK(1, 2) | \
 297                     COUNTER_MASK(1, 3) | \
 298                     COUNTER_MASK(1, 4))
 299
 300 #endif                          /* _QIB_MAD_H */