1 sysfs interface common for all infiniband devi 1 sysfs interface common for all infiniband devices
2 ---------------------------------------------- 2 -------------------------------------------------
3 3
4 What: /sys/class/infiniband/<device> 4 What: /sys/class/infiniband/<device>/node_type
5 What: /sys/class/infiniband/<device> 5 What: /sys/class/infiniband/<device>/node_guid
6 What: /sys/class/infiniband/<device> 6 What: /sys/class/infiniband/<device>/sys_image_guid
7 Date: Apr, 2005 7 Date: Apr, 2005
8 KernelVersion: v2.6.12 8 KernelVersion: v2.6.12
9 Contact: linux-rdma@vger.kernel.org 9 Contact: linux-rdma@vger.kernel.org
10 Description: 10 Description:
11 =============== ============== <<
12 node_type: (RO) Node type 11 node_type: (RO) Node type (CA, RNIC, usNIC, usNIC UDP,
13 switch or rout 12 switch or router)
14 13
15 node_guid: (RO) Node GUID 14 node_guid: (RO) Node GUID
16 15
17 sys_image_guid: (RO) System im 16 sys_image_guid: (RO) System image GUID
18 =============== ============== <<
19 17
20 18
21 What: /sys/class/infiniband/<device> 19 What: /sys/class/infiniband/<device>/node_desc
22 Date: Feb, 2006 20 Date: Feb, 2006
23 KernelVersion: v2.6.17 21 KernelVersion: v2.6.17
24 Contact: linux-rdma@vger.kernel.org 22 Contact: linux-rdma@vger.kernel.org
25 Description: 23 Description:
26 (RW) Update the node descripti 24 (RW) Update the node description with information such as the
27 node's hostname, so that IB ne 25 node's hostname, so that IB network management software can tie
28 its view to the real world. 26 its view to the real world.
29 27
30 28
31 What: /sys/class/infiniband/<device> 29 What: /sys/class/infiniband/<device>/fw_ver
32 Date: Jun, 2016 30 Date: Jun, 2016
33 KernelVersion: v4.10 31 KernelVersion: v4.10
34 Contact: linux-rdma@vger.kernel.org 32 Contact: linux-rdma@vger.kernel.org
35 Description: 33 Description:
36 (RO) Display firmware version 34 (RO) Display firmware version
37 35
38 36
39 What: /sys/class/infiniband/<device> 37 What: /sys/class/infiniband/<device>/ports/<port-num>/lid
40 What: /sys/class/infiniband/<device> 38 What: /sys/class/infiniband/<device>/ports/<port-num>/rate
41 What: /sys/class/infiniband/<device> 39 What: /sys/class/infiniband/<device>/ports/<port-num>/lid_mask_count
42 What: /sys/class/infiniband/<device> 40 What: /sys/class/infiniband/<device>/ports/<port-num>/sm_sl
43 What: /sys/class/infiniband/<device> 41 What: /sys/class/infiniband/<device>/ports/<port-num>/sm_lid
44 What: /sys/class/infiniband/<device> 42 What: /sys/class/infiniband/<device>/ports/<port-num>/state
45 What: /sys/class/infiniband/<device> 43 What: /sys/class/infiniband/<device>/ports/<port-num>/phys_state
46 What: /sys/class/infiniband/<device> 44 What: /sys/class/infiniband/<device>/ports/<port-num>/cap_mask
47 Date: Apr, 2005 45 Date: Apr, 2005
48 KernelVersion: v2.6.12 46 KernelVersion: v2.6.12
49 Contact: linux-rdma@vger.kernel.org 47 Contact: linux-rdma@vger.kernel.org
50 Description: 48 Description:
51 49
52 =============== ============== <<
53 lid: (RO) Port LID 50 lid: (RO) Port LID
54 51
55 rate: (RO) Port data 52 rate: (RO) Port data rate (active width * active
56 speed) 53 speed)
57 54
58 lid_mask_count: (RO) Port LID 55 lid_mask_count: (RO) Port LID mask count
59 56
60 sm_sl: (RO) Subnet ma 57 sm_sl: (RO) Subnet manager SL for port's subnet
61 58
62 sm_lid: (RO) Subnet ma 59 sm_lid: (RO) Subnet manager LID for port's subnet
63 60
64 state: (RO) Port stat 61 state: (RO) Port state (DOWN, INIT, ARMED, ACTIVE or
65 ACTIVE_DEFER) 62 ACTIVE_DEFER)
66 63
67 phys_state: (RO) Port phys 64 phys_state: (RO) Port physical state (Sleep, Polling,
68 LinkUp, etc) 65 LinkUp, etc)
69 66
70 cap_mask: (RO) Port capa 67 cap_mask: (RO) Port capability mask. 2 bits here are
71 settable- IsCo 68 settable- IsCommunicationManagementSupported
72 (set when CM m !! 69 (set when CM module is loaded) and IsSM (set via
73 via open of is !! 70 open of issmN file).
74 =============== ============== <<
75 71
76 72
77 What: /sys/class/infiniband/<device> 73 What: /sys/class/infiniband/<device>/ports/<port-num>/link_layer
78 Date: Oct, 2010 74 Date: Oct, 2010
79 KernelVersion: v2.6.37 75 KernelVersion: v2.6.37
80 Contact: linux-rdma@vger.kernel.org 76 Contact: linux-rdma@vger.kernel.org
81 Description: 77 Description:
82 (RO) Link layer type informati 78 (RO) Link layer type information (Infiniband or Ethernet type)
83 79
84 80
85 What: /sys/class/infiniband/<device> 81 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/symbol_error
86 What: /sys/class/infiniband/<device> 82 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_errors
87 What: /sys/class/infiniband/<device> 83 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_remote_physical_errors
88 What: /sys/class/infiniband/<device> 84 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_switch_relay_errors
89 What: /sys/class/infiniband/<device> 85 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/link_error_recovery
90 What: /sys/class/infiniband/<device> 86 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_xmit_constraint_errors
91 What: /sys/class/infiniband/<device> 87 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_contraint_errors
92 What: /sys/class/infiniband/<device> 88 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/local_link_integrity_errors
93 What: /sys/class/infiniband/<device> 89 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/excessive_buffer_overrun_errors
94 What: /sys/class/infiniband/<device> 90 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_xmit_data
95 What: /sys/class/infiniband/<device> 91 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_data
96 What: /sys/class/infiniband/<device> 92 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_xmit_packets
97 What: /sys/class/infiniband/<device> 93 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_packets
98 What: /sys/class/infiniband/<device> 94 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/unicast_rcv_packets
99 What: /sys/class/infiniband/<device> 95 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/unicast_xmit_packets
100 What: /sys/class/infiniband/<device> 96 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/multicast_rcv_packets
101 What: /sys/class/infiniband/<device> 97 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/multicast_xmit_packets
102 What: /sys/class/infiniband/<device> 98 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/link_downed
103 What: /sys/class/infiniband/<device> 99 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_xmit_discards
104 What: /sys/class/infiniband/<device> 100 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/VL15_dropped
105 What: /sys/class/infiniband/<device> 101 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_xmit_wait
106 Date: Apr, 2005 102 Date: Apr, 2005
107 KernelVersion: v2.6.12 103 KernelVersion: v2.6.12
108 Contact: linux-rdma@vger.kernel.org 104 Contact: linux-rdma@vger.kernel.org
109 Description: 105 Description:
110 **Errors info**: !! 106 Errors info:
>> 107 -----------
111 108
112 symbol_error: (RO) Total numbe 109 symbol_error: (RO) Total number of minor link errors detected on
113 one or more physical lanes. 110 one or more physical lanes.
114 111
115 port_rcv_errors : (RO) Total n 112 port_rcv_errors : (RO) Total number of packets containing an
116 error that were received on th 113 error that were received on the port.
117 114
118 port_rcv_remote_physical_error 115 port_rcv_remote_physical_errors : (RO) Total number of packets
119 marked with the EBP delimiter 116 marked with the EBP delimiter received on the port.
120 117
121 port_rcv_switch_relay_errors : 118 port_rcv_switch_relay_errors : (RO) Total number of packets
122 received on the port that were 119 received on the port that were discarded because they could not
123 be forwarded by the switch rel 120 be forwarded by the switch relay.
124 121
125 link_error_recovery: (RO) Tota 122 link_error_recovery: (RO) Total number of times the Port
126 Training state machine has suc 123 Training state machine has successfully completed the link error
127 recovery process. 124 recovery process.
128 125
129 port_xmit_constraint_errors: ( 126 port_xmit_constraint_errors: (RO) Total number of packets not
130 transmitted from the switch ph 127 transmitted from the switch physical port due to outbound raw
131 filtering or failing outbound 128 filtering or failing outbound partition or IP version check.
132 129
133 port_rcv_constraint_errors: (R 130 port_rcv_constraint_errors: (RO) Total number of packets
134 received on the switch physica 131 received on the switch physical port that are discarded due to
135 inbound raw filtering or faili 132 inbound raw filtering or failing inbound partition or IP version
136 check. 133 check.
137 134
138 local_link_integrity_errors: ( 135 local_link_integrity_errors: (RO) The number of times that the
139 count of local physical errors 136 count of local physical errors exceeded the threshold specified
140 by LocalPhyErrors 137 by LocalPhyErrors
141 138
142 excessive_buffer_overrun_error 139 excessive_buffer_overrun_errors: (RO) This counter, indicates an
143 input buffer overrun. It indic 140 input buffer overrun. It indicates possible misconfiguration of
144 a port, either by the Subnet M 141 a port, either by the Subnet Manager (SM) or by user
145 intervention. It can also indi 142 intervention. It can also indicate hardware issues or extremely
146 poor link signal integrity 143 poor link signal integrity
147 144
148 **Data info**: !! 145 Data info:
>> 146 ---------
149 147
150 port_xmit_data: (RO) Total num 148 port_xmit_data: (RO) Total number of data octets, divided by 4
151 (lanes), transmitted on all VL 149 (lanes), transmitted on all VLs. This is 64 bit counter
152 150
153 port_rcv_data: (RO) Total numb 151 port_rcv_data: (RO) Total number of data octets, divided by 4
154 (lanes), received on all VLs. 152 (lanes), received on all VLs. This is 64 bit counter.
155 153
156 port_xmit_packets: (RO) Total 154 port_xmit_packets: (RO) Total number of packets transmitted on
157 all VLs from this port. This m 155 all VLs from this port. This may include packets with errors.
158 This is 64 bit counter. 156 This is 64 bit counter.
159 157
160 port_rcv_packets: (RO) Total n 158 port_rcv_packets: (RO) Total number of packets (this may include
161 packets containing Errors. Thi 159 packets containing Errors. This is 64 bit counter.
162 160
163 link_downed: (RO) Total number 161 link_downed: (RO) Total number of times the Port Training state
164 machine has failed the link er 162 machine has failed the link error recovery process and downed
165 the link. 163 the link.
166 164
167 unicast_rcv_packets: (RO) Tota 165 unicast_rcv_packets: (RO) Total number of unicast packets,
168 including unicast packets cont 166 including unicast packets containing errors.
169 167
170 unicast_xmit_packets: (RO) Tot 168 unicast_xmit_packets: (RO) Total number of unicast packets
171 transmitted on all VLs from th 169 transmitted on all VLs from the port. This may include unicast
172 packets with errors. 170 packets with errors.
173 171
174 multicast_rcv_packets: (RO) To 172 multicast_rcv_packets: (RO) Total number of multicast packets,
175 including multicast packets co 173 including multicast packets containing errors.
176 174
177 multicast_xmit_packets: (RO) T 175 multicast_xmit_packets: (RO) Total number of multicast packets
178 transmitted on all VLs from th 176 transmitted on all VLs from the port. This may include multicast
179 packets with errors. 177 packets with errors.
180 178
181 **Misc info**: !! 179 Misc info:
>> 180 ---------
182 181
183 port_xmit_discards: (RO) Total 182 port_xmit_discards: (RO) Total number of outbound packets
184 discarded by the port because 183 discarded by the port because the port is down or congested.
185 184
186 VL15_dropped: (RO) Number of i 185 VL15_dropped: (RO) Number of incoming VL15 packets dropped due
187 to resource limitations (e.g., 186 to resource limitations (e.g., lack of buffers) of the port.
188 187
189 port_xmit_wait: (RO) The numbe 188 port_xmit_wait: (RO) The number of ticks during which the port
190 had data to transmit but no da 189 had data to transmit but no data was sent during the entire tick
191 (either because of insufficien 190 (either because of insufficient credits or because of lack of
192 arbitration). 191 arbitration).
193 192
194 Each of these files contains t 193 Each of these files contains the corresponding value from the
195 port's Performance Management 194 port's Performance Management PortCounters attribute, as
196 described in the InfiniBand Ar 195 described in the InfiniBand Architecture Specification.
197 196
198 197
199 What: /sys/class/infiniband/<device- 198 What: /sys/class/infiniband/<device-name>/hw_counters/lifespan
200 What: /sys/class/infiniband/<device- 199 What: /sys/class/infiniband/<device-name>/ports/<port-num>/hw_counters/lifespan
201 Date: May, 2016 200 Date: May, 2016
202 KernelVersion: 4.6 201 KernelVersion: 4.6
203 Contact: linux-rdma@vger.kernel.org 202 Contact: linux-rdma@vger.kernel.org
204 Description: 203 Description:
205 The optional "hw_counters" sub 204 The optional "hw_counters" subdirectory can be under either the
206 parent device or the port subd 205 parent device or the port subdirectories or both. If present,
207 there are a list of counters p 206 there are a list of counters provided by the hardware. They may
208 match some of the counters in 207 match some of the counters in the counters directory, but they
209 often include many other count 208 often include many other counters. In addition to the various
210 counters, there will be a file 209 counters, there will be a file named "lifespan" that configures
211 how frequently the core should 210 how frequently the core should update the counters when they are
212 being accessed (counters are n 211 being accessed (counters are not updated if they are not being
213 accessed). The lifespan is in 212 accessed). The lifespan is in milliseconds and defaults to 10
214 unless set to something else b 213 unless set to something else by the driver. Users may echo a
215 value between 0-10000 to the l 214 value between 0-10000 to the lifespan file to set the length
216 of time between updates in mil 215 of time between updates in milliseconds.
217 216
218 217
219 What: /sys/class/infiniband/<hca>/po 218 What: /sys/class/infiniband/<hca>/ports/<port-number>/gid_attrs/ndevs/<gid-index>
220 Date: November 29, 2015 219 Date: November 29, 2015
221 KernelVersion: 4.4.0 220 KernelVersion: 4.4.0
222 Contact: linux-rdma@vger.kernel.org 221 Contact: linux-rdma@vger.kernel.org
223 Description: The net-device's name associat 222 Description: The net-device's name associated with the GID resides
224 at index <gid-index>. 223 at index <gid-index>.
225 224
226 What: /sys/class/infiniband/<hca>/po 225 What: /sys/class/infiniband/<hca>/ports/<port-number>/gid_attrs/types/<gid-index>
227 Date: November 29, 2015 226 Date: November 29, 2015
228 KernelVersion: 4.4.0 227 KernelVersion: 4.4.0
229 Contact: linux-rdma@vger.kernel.org 228 Contact: linux-rdma@vger.kernel.org
230 Description: The RoCE type of the associate 229 Description: The RoCE type of the associated GID resides at index <gid-index>.
231 This could either be "IB/RoCE 230 This could either be "IB/RoCE v1" for IB and RoCE v1 based GIDs
232 or "RoCE v2" for RoCE v2 based 231 or "RoCE v2" for RoCE v2 based GIDs.
233 232
234 233
235 What: /sys/class/infiniband_mad/umad !! 234 What: /sys/class/infiniband_mad/umadN/ibdev
236 What: /sys/class/infiniband_mad/umad !! 235 What: /sys/class/infiniband_mad/umadN/port
237 What: /sys/class/infiniband_mad/issm !! 236 What: /sys/class/infiniband_mad/issmN/ibdev
238 What: /sys/class/infiniband_mad/issm !! 237 What: /sys/class/infiniband_mad/issmN/port
239 Date: Apr, 2005 238 Date: Apr, 2005
240 KernelVersion: v2.6.12 239 KernelVersion: v2.6.12
241 Contact: linux-rdma@vger.kernel.org 240 Contact: linux-rdma@vger.kernel.org
242 Description: 241 Description:
243 Each port of each InfiniBand d 242 Each port of each InfiniBand device has a "umad" device and an
244 "issm" device attached. For ex 243 "issm" device attached. For example, a two-port HCA will have
245 two umad devices and two issm 244 two umad devices and two issm devices, while a switch will have
246 one device of each type (for s 245 one device of each type (for switch port 0).
247 246
248 ======= ====================== <<
249 ibdev: (RO) Show Infiniband ( 247 ibdev: (RO) Show Infiniband (IB) device name
250 248
251 port: (RO) Display port numb 249 port: (RO) Display port number
252 ======= ====================== <<
253 250
254 251
255 What: /sys/class/infiniband_mad/abi_ 252 What: /sys/class/infiniband_mad/abi_version
256 Date: Apr, 2005 253 Date: Apr, 2005
257 KernelVersion: v2.6.12 254 KernelVersion: v2.6.12
258 Contact: linux-rdma@vger.kernel.org 255 Contact: linux-rdma@vger.kernel.org
259 Description: 256 Description:
260 (RO) Value is incremented if a 257 (RO) Value is incremented if any changes are made that break
261 userspace ABI compatibility of 258 userspace ABI compatibility of umad & issm devices.
262 259
263 260
264 What: /sys/class/infiniband_verbs/uv !! 261 What: /sys/class/infiniband_cm/ucmN/ibdev
265 What: /sys/class/infiniband_verbs/uv !! 262 Date: Oct, 2005
>> 263 KernelVersion: v2.6.14
>> 264 Contact: linux-rdma@vger.kernel.org
>> 265 Description:
>> 266 (RO) Display Infiniband (IB) device name
>> 267
>> 268
>> 269 What: /sys/class/infiniband_cm/abi_version
>> 270 Date: Oct, 2005
>> 271 KernelVersion: v2.6.14
>> 272 Contact: linux-rdma@vger.kernel.org
>> 273 Description:
>> 274 (RO) Value is incremented if any changes are made that break
>> 275 userspace ABI compatibility of ucm devices.
>> 276
>> 277
>> 278 What: /sys/class/infiniband_verbs/uverbsN/ibdev
>> 279 What: /sys/class/infiniband_verbs/uverbsN/abi_version
266 Date: Sept, 2005 280 Date: Sept, 2005
267 KernelVersion: v2.6.14 281 KernelVersion: v2.6.14
268 Contact: linux-rdma@vger.kernel.org 282 Contact: linux-rdma@vger.kernel.org
269 Description: 283 Description:
270 =============== ============== <<
271 ibdev: (RO) Display I 284 ibdev: (RO) Display Infiniband (IB) device name
272 285
273 abi_version: (RO) Show ABI 286 abi_version: (RO) Show ABI version of IB device specific
274 interfaces. 287 interfaces.
275 =============== ============== <<
276 288
277 289
278 What: /sys/class/infiniband_verbs/ab 290 What: /sys/class/infiniband_verbs/abi_version
279 Date: Sep, 2005 291 Date: Sep, 2005
280 KernelVersion: v2.6.14 292 KernelVersion: v2.6.14
281 Contact: linux-rdma@vger.kernel.org 293 Contact: linux-rdma@vger.kernel.org
282 Description: 294 Description:
283 (RO) Value is incremented if a 295 (RO) Value is incremented if any changes are made that break
284 userspace ABI compatibility of 296 userspace ABI compatibility of uverbs devices.
285 297
286 298
287 sysfs interface for Mellanox IB HCA low-level 299 sysfs interface for Mellanox IB HCA low-level driver (mthca)
288 ---------------------------------------------- 300 ------------------------------------------------------------
289 301
290 What: /sys/class/infiniband/mthcaX/h 302 What: /sys/class/infiniband/mthcaX/hw_rev
291 What: /sys/class/infiniband/mthcaX/h 303 What: /sys/class/infiniband/mthcaX/hca_type
292 What: /sys/class/infiniband/mthcaX/b 304 What: /sys/class/infiniband/mthcaX/board_id
293 Date: Apr, 2005 305 Date: Apr, 2005
294 KernelVersion: v2.6.12 306 KernelVersion: v2.6.12
295 Contact: linux-rdma@vger.kernel.org 307 Contact: linux-rdma@vger.kernel.org
296 Description: 308 Description:
297 =============== ============== <<
298 hw_rev: (RO) Hardware 309 hw_rev: (RO) Hardware revision number
299 310
300 hca_type: (RO) Host Chan 311 hca_type: (RO) Host Channel Adapter type: MT23108, MT25208
301 (MT23108 compa 312 (MT23108 compat mode), MT25208 or MT25204
302 313
303 board_id: (RO) Manufactu 314 board_id: (RO) Manufacturing board ID
304 =============== ============== !! 315
>> 316
>> 317 sysfs interface for Chelsio T3 RDMA Driver (cxgb3)
>> 318 --------------------------------------------------
>> 319
>> 320 What: /sys/class/infiniband/cxgb3_X/hw_rev
>> 321 What: /sys/class/infiniband/cxgb3_X/hca_type
>> 322 What: /sys/class/infiniband/cxgb3_X/board_id
>> 323 Date: Feb, 2007
>> 324 KernelVersion: v2.6.21
>> 325 Contact: linux-rdma@vger.kernel.org
>> 326 Description:
>> 327 hw_rev: (RO) Hardware revision number
>> 328
>> 329 hca_type: (RO) HCA type. Here it is a driver short name.
>> 330 It should normally match the name in its bus
>> 331 driver structure (e.g. pci_driver::name).
>> 332
>> 333 board_id: (RO) Manufacturing board id
305 334
306 335
307 sysfs interface for Mellanox ConnectX HCA IB d 336 sysfs interface for Mellanox ConnectX HCA IB driver (mlx4)
308 ---------------------------------------------- 337 ----------------------------------------------------------
309 338
310 What: /sys/class/infiniband/mlx4_X/h 339 What: /sys/class/infiniband/mlx4_X/hw_rev
311 What: /sys/class/infiniband/mlx4_X/h 340 What: /sys/class/infiniband/mlx4_X/hca_type
312 What: /sys/class/infiniband/mlx4_X/b 341 What: /sys/class/infiniband/mlx4_X/board_id
313 Date: Sep, 2007 342 Date: Sep, 2007
314 KernelVersion: v2.6.24 343 KernelVersion: v2.6.24
315 Contact: linux-rdma@vger.kernel.org 344 Contact: linux-rdma@vger.kernel.org
316 Description: 345 Description:
317 =============== ============== <<
318 hw_rev: (RO) Hardware 346 hw_rev: (RO) Hardware revision number
319 347
320 hca_type: (RO) Host chan 348 hca_type: (RO) Host channel adapter type
321 349
322 board_id: (RO) Manufactu 350 board_id: (RO) Manufacturing board ID
323 =============== ============== <<
324 351
325 352
326 What: /sys/class/infiniband/mlx4_X/i 353 What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/gids/<n>
327 What: /sys/class/infiniband/mlx4_X/i 354 What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/admin_guids/<n>
328 What: /sys/class/infiniband/mlx4_X/i 355 What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/pkeys/<n>
329 What: /sys/class/infiniband/mlx4_X/i 356 What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/mcgs/
330 What: /sys/class/infiniband/mlx4_X/i 357 What: /sys/class/infiniband/mlx4_X/iov/ports/<pci-slot-num>/ports/<m>/gid_idx/0
331 What: /sys/class/infiniband/mlx4_X/i 358 What: /sys/class/infiniband/mlx4_X/iov/ports/<pci-slot-num>/ports/<m>/pkey_idx/<n>
332 Date: Aug, 2012 359 Date: Aug, 2012
333 KernelVersion: v3.6.15 360 KernelVersion: v3.6.15
334 Contact: linux-rdma@vger.kernel.org 361 Contact: linux-rdma@vger.kernel.org
335 Description: 362 Description:
336 The sysfs iov directory is use 363 The sysfs iov directory is used to manage and examine the port
337 P_Key and guid paravirtualizat 364 P_Key and guid paravirtualization. This directory is added only
338 for the master -- slaves do no 365 for the master -- slaves do not have it.
339 366
340 Under iov/ports, the administr 367 Under iov/ports, the administrator may examine the gid and P_Key
341 tables as they are present in 368 tables as they are present in the device (and as are seen in the
342 "network view" presented to th 369 "network view" presented to the SM).
343 370
344 The "pkeys" and "gids" subdire 371 The "pkeys" and "gids" subdirectories contain one file for each
345 entry in the port's P_Key or G 372 entry in the port's P_Key or GID table respectively. For
346 example, ports/1/pkeys/10 cont 373 example, ports/1/pkeys/10 contains the value at index 10 in port
347 1's P_Key table. 374 1's P_Key table.
348 375
349 ======================= ====== <<
350 gids/<n>: (RO) T 376 gids/<n>: (RO) The physical port gids n = 0..127
351 377
352 admin_guids/<n>: (RW) A 378 admin_guids/<n>: (RW) Allows examining or changing the
353 admini 379 administrative state of a given GUID
354 n = 0. 380 n = 0..127
355 381
356 pkeys/<n>: (RO) D 382 pkeys/<n>: (RO) Displays the contents of the physical
357 key ta 383 key table n = 0..126
358 384
359 mcgs/: (RO) M !! 385 mcgs/: (RO) Muticast group table
360 386
361 <m>/gid_idx/0: (RO) D 387 <m>/gid_idx/0: (RO) Display the GID mapping m = 1..2
362 388
363 <m>/pkey_idx/<n>: (RW) W 389 <m>/pkey_idx/<n>: (RW) Writable except for RoCE pkeys.
364 m = 1. 390 m = 1..2, n = 0..126
365 391
366 Under 392 Under the iov/<pci slot number>
367 direct 393 directories, the admin may map the index
368 number 394 numbers in the physical tables (as under
369 iov/po 395 iov/ports) to the paravirtualized index
370 number 396 numbers that guests see.
371 397
372 For ex 398 For example, if the administrator, for
373 port 1 399 port 1 on guest 2 maps physical pkey
374 index 400 index 10 to virtual index 1, then that
375 guest, 401 guest, whenever it uses its pkey index
376 1, wil 402 1, will actually be using the real pkey
377 index 403 index 10.
378 ======================= ====== <<
379 404
380 405
381 What: /sys/class/infiniband/mlx4_X/i 406 What: /sys/class/infiniband/mlx4_X/iov/<pci-slot-num>/ports/<m>/smi_enabled
382 What: /sys/class/infiniband/mlx4_X/i 407 What: /sys/class/infiniband/mlx4_X/iov/<pci-slot-num>/ports/<m>/enable_smi_admin
383 Date: May, 2014 408 Date: May, 2014
384 KernelVersion: v3.15.7 409 KernelVersion: v3.15.7
385 Contact: linux-rdma@vger.kernel.org 410 Contact: linux-rdma@vger.kernel.org
386 Description: 411 Description:
387 Enabling QP0 on VFs for select 412 Enabling QP0 on VFs for selected VF/port. By default, no VFs are
388 enabled for QP0 operation. 413 enabled for QP0 operation.
389 414
390 ================= ==== ======= !! 415 smi_enabled: (RO) Indicates whether smi is currently enabled
391 smi_enabled: (RO) Indicat !! 416 for the indicated VF/port
392 for the !! 417
393 !! 418 enable_smi_admin:(RW) Used by the admin to request that smi
394 enable_smi_admin: (RW) Used by !! 419 capability be enabled or disabled for the
395 capabil !! 420 indicated VF/port. 0 = disable, 1 = enable.
396 indicat <<
397 ================= ==== ======= <<
398 421
399 The requested enablement will 422 The requested enablement will occur at the next reset of the VF
400 (e.g. driver restart on the VM 423 (e.g. driver restart on the VM which owns the VF).
401 424
402 425
403 sysfs interface for Chelsio T4/T5 RDMA driver 426 sysfs interface for Chelsio T4/T5 RDMA driver (cxgb4)
404 ---------------------------------------------- 427 -----------------------------------------------------
405 428
406 What: /sys/class/infiniband/cxgb4_X/ 429 What: /sys/class/infiniband/cxgb4_X/hw_rev
407 What: /sys/class/infiniband/cxgb4_X/ 430 What: /sys/class/infiniband/cxgb4_X/hca_type
408 What: /sys/class/infiniband/cxgb4_X/ 431 What: /sys/class/infiniband/cxgb4_X/board_id
409 Date: Apr, 2010 432 Date: Apr, 2010
410 KernelVersion: v2.6.35 433 KernelVersion: v2.6.35
411 Contact: linux-rdma@vger.kernel.org 434 Contact: linux-rdma@vger.kernel.org
412 Description: 435 Description:
413 436
414 =============== ============== <<
415 hw_rev: (RO) Hardware 437 hw_rev: (RO) Hardware revision number
416 438
417 hca_type: (RO) Driver sh 439 hca_type: (RO) Driver short name. Should normally match
418 the name in it 440 the name in its bus driver structure (e.g.
419 pci_driver::na 441 pci_driver::name)
420 442
421 board_id: (RO) Manufactu 443 board_id: (RO) Manufacturing board id. (Vendor + device
422 information) 444 information)
423 =============== ============== <<
424 445
425 446
426 sysfs interface for Intel IB driver qib 447 sysfs interface for Intel IB driver qib
427 --------------------------------------- 448 ---------------------------------------
428 449
429 What: /sys/class/infiniband/qibX/ver 450 What: /sys/class/infiniband/qibX/version
430 What: /sys/class/infiniband/qibX/hw_ 451 What: /sys/class/infiniband/qibX/hw_rev
431 What: /sys/class/infiniband/qibX/hca 452 What: /sys/class/infiniband/qibX/hca_type
432 What: /sys/class/infiniband/qibX/boa 453 What: /sys/class/infiniband/qibX/board_id
433 What: /sys/class/infiniband/qibX/boa 454 What: /sys/class/infiniband/qibX/boardversion
434 What: /sys/class/infiniband/qibX/nct 455 What: /sys/class/infiniband/qibX/nctxts
435 What: /sys/class/infiniband/qibX/loc 456 What: /sys/class/infiniband/qibX/localbus_info
436 What: /sys/class/infiniband/qibX/tem 457 What: /sys/class/infiniband/qibX/tempsense
437 What: /sys/class/infiniband/qibX/ser 458 What: /sys/class/infiniband/qibX/serial
438 What: /sys/class/infiniband/qibX/nfr 459 What: /sys/class/infiniband/qibX/nfreectxts
439 What: /sys/class/infiniband/qibX/chi 460 What: /sys/class/infiniband/qibX/chip_reset
440 Date: May, 2010 461 Date: May, 2010
441 KernelVersion: v2.6.35 462 KernelVersion: v2.6.35
442 Contact: linux-rdma@vger.kernel.org 463 Contact: linux-rdma@vger.kernel.org
443 Description: 464 Description:
444 =============== ============== <<
445 version: (RO) Display v 465 version: (RO) Display version information of installed software
446 and drivers. 466 and drivers.
447 467
448 hw_rev: (RO) Hardware 468 hw_rev: (RO) Hardware revision number
449 469
450 hca_type: (RO) Host chan 470 hca_type: (RO) Host channel adapter type
451 471
452 board_id: (RO) Manufactu 472 board_id: (RO) Manufacturing board id
453 473
454 boardversion: (RO) Current v 474 boardversion: (RO) Current version of the chip architecture
455 475
456 nctxts: (RO) Return th 476 nctxts: (RO) Return the number of user ports (contexts)
457 available 477 available
458 478
459 localbus_info: (RO) Human rea 479 localbus_info: (RO) Human readable localbus info
460 480
461 tempsense: (RO) Display t 481 tempsense: (RO) Display temp sense registers in decimal
462 482
463 serial: (RO) Serial nu 483 serial: (RO) Serial number of the HCA
464 484
465 nfreectxts: (RO) The numbe 485 nfreectxts: (RO) The number of free user ports (contexts)
466 available. 486 available.
467 487
468 chip_reset: (WO) Reset the 488 chip_reset: (WO) Reset the chip if possible by writing
469 "reset" to thi 489 "reset" to this file. Only allowed if no user
470 contexts are o 490 contexts are open that use chip resources.
471 =============== ============== <<
472 491
473 492
474 What: /sys/class/infiniband/qibX/por !! 493 What: /sys/class/infiniband/qibX/ports/N/sl2vl/[0-15]
475 Date: May, 2010 494 Date: May, 2010
476 KernelVersion: v2.6.35 495 KernelVersion: v2.6.35
477 Contact: linux-rdma@vger.kernel.org 496 Contact: linux-rdma@vger.kernel.org
478 Description: 497 Description:
479 (RO) The directory contains 16 498 (RO) The directory contains 16 files numbered 0-15 that specify
480 the Service Level (SL). Listin 499 the Service Level (SL). Listing the SL files returns the Virtual
481 Lane (VL) as programmed by the 500 Lane (VL) as programmed by the SL.
482 501
483 What: /sys/class/infiniband/qibX/por !! 502 What: /sys/class/infiniband/qibX/ports/N/CCMgtA/cc_settings_bin
484 What: /sys/class/infiniband/qibX/por !! 503 What: /sys/class/infiniband/qibX/ports/N/CCMgtA/cc_table_bin
485 Date: May, 2010 504 Date: May, 2010
486 KernelVersion: v2.6.35 505 KernelVersion: v2.6.35
487 Contact: linux-rdma@vger.kernel.org 506 Contact: linux-rdma@vger.kernel.org
488 Description: 507 Description:
489 Per-port congestion control. B 508 Per-port congestion control. Both are binary attributes.
490 509
491 =============== ============== !! 510 cc_table_bin: (RO) Congestion control table size followed by
492 cc_table_bin (RO) Congestio <<
493 table entries. 511 table entries.
494 512
495 cc_settings_bin (RO) Congestio !! 513 cc_settings_bin:(RO) Congestion settings: port control, control
496 map and an arr 514 map and an array of 16 entries for the
497 congestion ent 515 congestion entries - increase, timer, event log
498 trigger thresh 516 trigger threshold and the minimum injection rate
499 delay. 517 delay.
500 =============== ============== <<
501 518
502 What: /sys/class/infiniband/qibX/por !! 519 What: /sys/class/infiniband/qibX/ports/N/linkstate/loopback
503 What: /sys/class/infiniband/qibX/por !! 520 What: /sys/class/infiniband/qibX/ports/N/linkstate/led_override
504 What: /sys/class/infiniband/qibX/por !! 521 What: /sys/class/infiniband/qibX/ports/N/linkstate/hrtbt_enable
505 What: /sys/class/infiniband/qibX/por !! 522 What: /sys/class/infiniband/qibX/ports/N/linkstate/status
506 What: /sys/class/infiniband/qibX/por !! 523 What: /sys/class/infiniband/qibX/ports/N/linkstate/status_str
507 Date: May, 2010 524 Date: May, 2010
508 KernelVersion: v2.6.35 525 KernelVersion: v2.6.35
509 Contact: linux-rdma@vger.kernel.org 526 Contact: linux-rdma@vger.kernel.org
510 Description: 527 Description:
511 [to be documented] 528 [to be documented]
512 529
513 =============== ============== <<
514 loopback: (WO) 530 loopback: (WO)
515 led_override: (WO) 531 led_override: (WO)
516 hrtbt_enable: (RW) 532 hrtbt_enable: (RW)
517 status: (RO) 533 status: (RO)
518 534
519 status_str: (RO) Displays 535 status_str: (RO) Displays information about the link state,
520 possible cable 536 possible cable/switch problems, and hardware
521 errors. Possib 537 errors. Possible states are- "Initted",
522 "Present", "IB 538 "Present", "IB_link_up", "IB_configured" or
523 "Fatal_Hardwar 539 "Fatal_Hardware_Error".
524 =============== ============== <<
525 540
526 What: /sys/class/infiniband/qibX/por !! 541 What: /sys/class/infiniband/qibX/ports/N/diag_counters/rc_resends
527 What: /sys/class/infiniband/qibX/por !! 542 What: /sys/class/infiniband/qibX/ports/N/diag_counters/seq_naks
528 What: /sys/class/infiniband/qibX/por !! 543 What: /sys/class/infiniband/qibX/ports/N/diag_counters/rdma_seq
529 What: /sys/class/infiniband/qibX/por !! 544 What: /sys/class/infiniband/qibX/ports/N/diag_counters/rnr_naks
530 What: /sys/class/infiniband/qibX/por !! 545 What: /sys/class/infiniband/qibX/ports/N/diag_counters/other_naks
531 What: /sys/class/infiniband/qibX/por !! 546 What: /sys/class/infiniband/qibX/ports/N/diag_counters/rc_timeouts
532 What: /sys/class/infiniband/qibX/por !! 547 What: /sys/class/infiniband/qibX/ports/N/diag_counters/look_pkts
533 What: /sys/class/infiniband/qibX/por !! 548 What: /sys/class/infiniband/qibX/ports/N/diag_counters/pkt_drops
534 What: /sys/class/infiniband/qibX/por !! 549 What: /sys/class/infiniband/qibX/ports/N/diag_counters/dma_wait
535 What: /sys/class/infiniband/qibX/por !! 550 What: /sys/class/infiniband/qibX/ports/N/diag_counters/unaligned
536 Date: May, 2010 551 Date: May, 2010
537 KernelVersion: v2.6.35 552 KernelVersion: v2.6.35
538 Contact: linux-rdma@vger.kernel.org 553 Contact: linux-rdma@vger.kernel.org
539 Description: 554 Description:
540 [to be documented] 555 [to be documented]
541 556
542 557
543 sysfs interface for Mellanox Connect-IB HCA dr 558 sysfs interface for Mellanox Connect-IB HCA driver mlx5
544 ---------------------------------------------- 559 -------------------------------------------------------
545 560
546 What: /sys/class/infiniband/mlx5_X/h 561 What: /sys/class/infiniband/mlx5_X/hw_rev
547 What: /sys/class/infiniband/mlx5_X/h 562 What: /sys/class/infiniband/mlx5_X/hca_type
548 What: /sys/class/infiniband/mlx5_X/r 563 What: /sys/class/infiniband/mlx5_X/reg_pages
549 What: /sys/class/infiniband/mlx5_X/f 564 What: /sys/class/infiniband/mlx5_X/fw_pages
550 Date: Jul, 2013 565 Date: Jul, 2013
551 KernelVersion: v3.11 566 KernelVersion: v3.11
552 Contact: linux-rdma@vger.kernel.org 567 Contact: linux-rdma@vger.kernel.org
553 Description: 568 Description:
554 [to be documented] 569 [to be documented]
555 570
556 571
557 sysfs interface for Cisco VIC (usNIC) Verbs Dr 572 sysfs interface for Cisco VIC (usNIC) Verbs Driver
558 ---------------------------------------------- 573 --------------------------------------------------
559 574
560 What: /sys/class/infiniband/usnic_X/ 575 What: /sys/class/infiniband/usnic_X/board_id
561 What: /sys/class/infiniband/usnic_X/ 576 What: /sys/class/infiniband/usnic_X/config
562 What: /sys/class/infiniband/usnic_X/ 577 What: /sys/class/infiniband/usnic_X/qp_per_vf
563 What: /sys/class/infiniband/usnic_X/ 578 What: /sys/class/infiniband/usnic_X/max_vf
564 What: /sys/class/infiniband/usnic_X/ 579 What: /sys/class/infiniband/usnic_X/cq_per_vf
565 What: /sys/class/infiniband/usnic_X/ 580 What: /sys/class/infiniband/usnic_X/iface
566 Date: Sep, 2013 581 Date: Sep, 2013
567 KernelVersion: v3.14 582 KernelVersion: v3.14
568 Contact: Christian Benvenuti <benve@cisc 583 Contact: Christian Benvenuti <benve@cisco.com>,
569 Dave Goodell <dgoodell@cisco.co 584 Dave Goodell <dgoodell@cisco.com>,
570 linux-rdma@vger.kernel.org 585 linux-rdma@vger.kernel.org
571 Description: 586 Description:
572 587
573 =============== ============== <<
574 board_id: (RO) Manufactu 588 board_id: (RO) Manufacturing board id
575 589
576 config: (RO) Report th 590 config: (RO) Report the configuration for this PF
577 591
578 qp_per_vf: (RO) Queue pai 592 qp_per_vf: (RO) Queue pairs per virtual function.
579 593
580 max_vf: (RO) Max virtu 594 max_vf: (RO) Max virtual functions
581 595
582 cq_per_vf: (RO) Completio 596 cq_per_vf: (RO) Completion queue per virtual function
583 597
584 iface: (RO) Shows whi 598 iface: (RO) Shows which network interface this usNIC
585 entry is assoc 599 entry is associated to (visible with ifconfig).
586 =============== ============== <<
587 600
588 What: /sys/class/infiniband/usnic_X/ 601 What: /sys/class/infiniband/usnic_X/qpn/summary
589 What: /sys/class/infiniband/usnic_X/ 602 What: /sys/class/infiniband/usnic_X/qpn/context
590 Date: Sep, 2013 603 Date: Sep, 2013
591 KernelVersion: v3.14 604 KernelVersion: v3.14
592 Contact: Christian Benvenuti <benve@cisc 605 Contact: Christian Benvenuti <benve@cisco.com>,
593 Dave Goodell <dgoodell@cisco.co 606 Dave Goodell <dgoodell@cisco.com>,
594 linux-rdma@vger.kernel.org 607 linux-rdma@vger.kernel.org
595 Description: 608 Description:
596 [to be documented] 609 [to be documented]
597 610
598 611
599 sysfs interface for Emulex RoCE HCA Driver 612 sysfs interface for Emulex RoCE HCA Driver
600 ------------------------------------------ 613 ------------------------------------------
601 614
602 What: /sys/class/infiniband/ocrdmaX/ 615 What: /sys/class/infiniband/ocrdmaX/hw_rev
603 Date: Feb, 2014 616 Date: Feb, 2014
604 KernelVersion: v3.14 617 KernelVersion: v3.14
605 Description: 618 Description:
606 hw_rev: (RO) Hardware 619 hw_rev: (RO) Hardware revision number
607 620
608 What: /sys/class/infiniband/ocrdmaX/ 621 What: /sys/class/infiniband/ocrdmaX/hca_type
609 Date: Jun, 2014 622 Date: Jun, 2014
610 KernelVersion: v3.16 623 KernelVersion: v3.16
611 Contact: linux-rdma@vger.kernel.org 624 Contact: linux-rdma@vger.kernel.org
612 Description: 625 Description:
613 hca_type: (RO) Display F 626 hca_type: (RO) Display FW version
614 627
615 628
616 sysfs interface for Intel Omni-Path driver (HF 629 sysfs interface for Intel Omni-Path driver (HFI1)
617 ---------------------------------------------- 630 -------------------------------------------------
618 631
619 What: /sys/class/infiniband/hfi1_X/h 632 What: /sys/class/infiniband/hfi1_X/hw_rev
620 What: /sys/class/infiniband/hfi1_X/b 633 What: /sys/class/infiniband/hfi1_X/board_id
621 What: /sys/class/infiniband/hfi1_X/n 634 What: /sys/class/infiniband/hfi1_X/nctxts
622 What: /sys/class/infiniband/hfi1_X/s 635 What: /sys/class/infiniband/hfi1_X/serial
623 What: /sys/class/infiniband/hfi1_X/c 636 What: /sys/class/infiniband/hfi1_X/chip_reset
624 What: /sys/class/infiniband/hfi1_X/b 637 What: /sys/class/infiniband/hfi1_X/boardversion
625 What: /sys/class/infiniband/hfi1_X/n 638 What: /sys/class/infiniband/hfi1_X/nfreectxts
626 What: /sys/class/infiniband/hfi1_X/t 639 What: /sys/class/infiniband/hfi1_X/tempsense
627 Date: May, 2016 640 Date: May, 2016
628 KernelVersion: v4.6 641 KernelVersion: v4.6
629 Contact: linux-rdma@vger.kernel.org 642 Contact: linux-rdma@vger.kernel.org
630 Description: 643 Description:
631 =============== ============== <<
632 hw_rev: (RO) Hardware 644 hw_rev: (RO) Hardware revision number
633 645
634 board_id: (RO) Manufactu 646 board_id: (RO) Manufacturing board id
635 647
636 nctxts: (RO) Total con 648 nctxts: (RO) Total contexts available.
637 649
638 serial: (RO) Board ser 650 serial: (RO) Board serial number
639 651
640 chip_reset: (WO) Write "re 652 chip_reset: (WO) Write "reset" to this file to reset the
641 chip if possib 653 chip if possible. Only allowed if no user
642 contexts are o 654 contexts are open that use chip resources.
643 655
644 boardversion: (RO) Human rea 656 boardversion: (RO) Human readable board info
645 657
646 nfreectxts: (RO) The numbe 658 nfreectxts: (RO) The number of free user ports (contexts)
647 available. 659 available.
648 660
649 tempsense: (RO) Thermal s 661 tempsense: (RO) Thermal sense information
650 =============== ============== <<
651 662
652 663
653 What: /sys/class/infiniband/hfi1_X/p !! 664 What: /sys/class/infiniband/hfi1_X/ports/N/CCMgtA/cc_settings_bin
654 What: /sys/class/infiniband/hfi1_X/p !! 665 What: /sys/class/infiniband/hfi1_X/ports/N/CCMgtA/cc_table_bin
655 What: /sys/class/infiniband/hfi1_X/p !! 666 What: /sys/class/infiniband/hfi1_X/ports/N/CCMgtA/cc_prescan
656 Date: May, 2016 667 Date: May, 2016
657 KernelVersion: v4.6 668 KernelVersion: v4.6
658 Contact: linux-rdma@vger.kernel.org 669 Contact: linux-rdma@vger.kernel.org
659 Description: 670 Description:
660 Per-port congestion control. 671 Per-port congestion control.
661 672
662 =============== ============== !! 673 cc_table_bin: (RO) CCA tables used by PSM2 Congestion control
663 cc_table_bin (RO) CCA table <<
664 table size fol 674 table size followed by table entries. Binary
665 attribute. 675 attribute.
666 676
667 cc_settings_bin (RO) Congestio !! 677 cc_settings_bin:(RO) Congestion settings: port control, control
668 map and an arr 678 map and an array of 16 entries for the
669 congestion ent 679 congestion entries - increase, timer, event log
670 trigger thresh 680 trigger threshold and the minimum injection rate
671 delay. Binary 681 delay. Binary attribute.
672 682
673 cc_prescan (RW) enable pr !! 683 cc_prescan: (RW) enable prescanning for faster BECN
674 response. Writ 684 response. Write "on" to enable and "off" to
675 disable. 685 disable.
676 =============== ============== <<
677 686
678 What: /sys/class/infiniband/hfi1_X/p !! 687 What: /sys/class/infiniband/hfi1_X/ports/N/sc2vl/[0-31]
679 What: /sys/class/infiniband/hfi1_X/p !! 688 What: /sys/class/infiniband/hfi1_X/ports/N/sl2sc/[0-31]
680 What: /sys/class/infiniband/hfi1_X/p !! 689 What: /sys/class/infiniband/hfi1_X/ports/N/vl2mtu/[0-15]
681 Date: May, 2016 690 Date: May, 2016
682 KernelVersion: v4.6 691 KernelVersion: v4.6
683 Contact: linux-rdma@vger.kernel.org 692 Contact: linux-rdma@vger.kernel.org
684 Description: 693 Description:
685 =============== ============== <<
686 sc2vl/: (RO) 32 files 694 sc2vl/: (RO) 32 files (0 - 31) used to translate sl->vl
687 695
688 sl2sc/: (RO) 32 files 696 sl2sc/: (RO) 32 files (0 - 31) used to translate sl->sc
689 697
690 vl2mtu/: (RO) 16 files 698 vl2mtu/: (RO) 16 files (0 - 15) used to determine MTU for vl
691 =============== ============== <<
692 699
693 700
694 What: /sys/class/infiniband/hfi1_X/s !! 701 What: /sys/class/infiniband/hfi1_X/sdma_N/cpu_list
695 What: /sys/class/infiniband/hfi1_X/s !! 702 What: /sys/class/infiniband/hfi1_X/sdma_N/vl
696 Date: Sept, 2016 703 Date: Sept, 2016
697 KernelVersion: v4.8 704 KernelVersion: v4.8
698 Contact: linux-rdma@vger.kernel.org 705 Contact: linux-rdma@vger.kernel.org
699 Description: 706 Description:
700 sdma<N>/ contains one director 707 sdma<N>/ contains one directory per sdma engine (0 - 15)
701 708
702 =============== ============== <<
703 cpu_list: (RW) List of c 709 cpu_list: (RW) List of cpus for user-process to sdma
704 engine assignm 710 engine assignment.
705 711
706 vl: (RO) Displays 712 vl: (RO) Displays the virtual lane (vl) the sdma
707 engine maps to 713 engine maps to.
708 =============== ============== <<
709 714
710 This interface gives the user 715 This interface gives the user control on the affinity settings
711 for the device. As an example, 716 for the device. As an example, to set an sdma engine irq
712 affinity and thread affinity o 717 affinity and thread affinity of a user processes to use the
713 sdma engine, which is "near" i 718 sdma engine, which is "near" in terms of NUMA configuration, or
714 physical cpu location, the use !! 719 physical cpu location, the user will do:
715 720
716 echo "3" > /proc/irq/<N>/smp !! 721 echo "3" > /proc/irq/<N>/smp_affinity_list
717 echo "4-7" > /sys/devices/.. !! 722 echo "4-7" > /sys/devices/.../sdma3/cpu_list
718 cat /sys/devices/.../sdma3/v !! 723 cat /sys/devices/.../sdma3/vl
719 0 !! 724 0
720 echo "8" > /proc/irq/<M>/smp !! 725 echo "8" > /proc/irq/<M>/smp_affinity_list
721 echo "9-12" > /sys/devices/. !! 726 echo "9-12" > /sys/devices/.../sdma4/cpu_list
722 cat /sys/devices/.../sdma4/v !! 727 cat /sys/devices/.../sdma4/vl
723 1 !! 728 1
724 729
725 to make sure that when a proce 730 to make sure that when a process runs on cpus 4,5,6, or 7, and
726 uses vl=0, then sdma engine 3 731 uses vl=0, then sdma engine 3 is selected by the driver, and
727 also the interrupt of the sdma 732 also the interrupt of the sdma engine 3 is steered to cpu 3.
728 Similarly, when a process runs 733 Similarly, when a process runs on cpus 9,10,11, or 12 and sets
729 vl=1, then engine 4 will be se 734 vl=1, then engine 4 will be selected and the irq of the sdma
730 engine 4 is steered to cpu 8. 735 engine 4 is steered to cpu 8. This assumes that in the above N
731 is the irq number of "sdma3", 736 is the irq number of "sdma3", and M is irq number of "sdma4" in
732 the /proc/interrupts file. 737 the /proc/interrupts file.
733 738
>> 739
>> 740 sysfs interface for Intel(R) X722 iWARP i40iw driver
>> 741 ----------------------------------------------------
>> 742
>> 743 What: /sys/class/infiniband/i40iwX/hw_rev
>> 744 What: /sys/class/infiniband/i40iwX/hca_type
>> 745 What: /sys/class/infiniband/i40iwX/board_id
>> 746 Date: Jan, 2016
>> 747 KernelVersion: v4.10
>> 748 Contact: linux-rdma@vger.kernel.org
>> 749 Description:
>> 750 hw_rev: (RO) Hardware revision number
>> 751
>> 752 hca_type: (RO) Show HCA type (I40IW)
>> 753
>> 754 board_id: (RO) I40IW board ID
>> 755
>> 756
734 sysfs interface for QLogic qedr NIC Driver 757 sysfs interface for QLogic qedr NIC Driver
735 ------------------------------------------ 758 ------------------------------------------
736 759
737 What: /sys/class/infiniband/qedrX/hw 760 What: /sys/class/infiniband/qedrX/hw_rev
738 What: /sys/class/infiniband/qedrX/hc 761 What: /sys/class/infiniband/qedrX/hca_type
739 Date: Oct, 2016 762 Date: Oct, 2016
740 KernelVersion: v4.10 763 KernelVersion: v4.10
741 Contact: linux-rdma@vger.kernel.org 764 Contact: linux-rdma@vger.kernel.org
742 Description: 765 Description:
743 766
744 =============== ==== ========= <<
745 hw_rev: (RO) Hardware 767 hw_rev: (RO) Hardware revision number
746 768
747 hca_type: (RO) Display H 769 hca_type: (RO) Display HCA type
748 =============== ==== ========= <<
749 770
750 771
751 sysfs interface for VMware Paravirtual RDMA dr 772 sysfs interface for VMware Paravirtual RDMA driver
752 ---------------------------------------------- 773 --------------------------------------------------
753 774
754 What: /sys/class/infiniband/vmw_pvrd 775 What: /sys/class/infiniband/vmw_pvrdmaX/hw_rev
755 What: /sys/class/infiniband/vmw_pvrd 776 What: /sys/class/infiniband/vmw_pvrdmaX/hca_type
756 What: /sys/class/infiniband/vmw_pvrd 777 What: /sys/class/infiniband/vmw_pvrdmaX/board_id
757 Date: Oct, 2016 778 Date: Oct, 2016
758 KernelVersion: v4.10 779 KernelVersion: v4.10
759 Contact: linux-rdma@vger.kernel.org 780 Contact: linux-rdma@vger.kernel.org
760 Description: 781 Description:
761 782
762 =============== ==== ========= <<
763 hw_rev: (RO) Hardware 783 hw_rev: (RO) Hardware revision number
764 784
765 hca_type: (RO) Host chan 785 hca_type: (RO) Host channel adapter type
766 786
767 board_id: (RO) Display P 787 board_id: (RO) Display PVRDMA manufacturing board ID
768 =============== ==== ========= <<
769 788
770 789
771 sysfs interface for Broadcom NetXtreme-E RoCE 790 sysfs interface for Broadcom NetXtreme-E RoCE driver
772 ---------------------------------------------- 791 ----------------------------------------------------
773 792
774 What: /sys/class/infiniband/bnxt_reX 793 What: /sys/class/infiniband/bnxt_reX/hw_rev
775 What: /sys/class/infiniband/bnxt_reX 794 What: /sys/class/infiniband/bnxt_reX/hca_type
776 Date: Feb, 2017 795 Date: Feb, 2017
777 KernelVersion: v4.11 796 KernelVersion: v4.11
778 Contact: linux-rdma@vger.kernel.org 797 Contact: linux-rdma@vger.kernel.org
779 Description: 798 Description:
780 =============== ==== ========= <<
781 hw_rev: (RO) Hardware 799 hw_rev: (RO) Hardware revision number
782 800
783 hca_type: (RO) Host chan 801 hca_type: (RO) Host channel adapter type
784 =============== ==== ========= <<
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