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 =============== ============== 11 =============== ===========================================
12 node_type: (RO) Node type 12 node_type: (RO) Node type (CA, RNIC, usNIC, usNIC UDP,
13 switch or rout 13 switch or router)
14 14
15 node_guid: (RO) Node GUID 15 node_guid: (RO) Node GUID
16 16
17 sys_image_guid: (RO) System im 17 sys_image_guid: (RO) System image GUID
18 =============== ============== 18 =============== ===========================================
19 19
20 20
21 What: /sys/class/infiniband/<device> 21 What: /sys/class/infiniband/<device>/node_desc
22 Date: Feb, 2006 22 Date: Feb, 2006
23 KernelVersion: v2.6.17 23 KernelVersion: v2.6.17
24 Contact: linux-rdma@vger.kernel.org 24 Contact: linux-rdma@vger.kernel.org
25 Description: 25 Description:
26 (RW) Update the node descripti 26 (RW) Update the node description with information such as the
27 node's hostname, so that IB ne 27 node's hostname, so that IB network management software can tie
28 its view to the real world. 28 its view to the real world.
29 29
30 30
31 What: /sys/class/infiniband/<device> 31 What: /sys/class/infiniband/<device>/fw_ver
32 Date: Jun, 2016 32 Date: Jun, 2016
33 KernelVersion: v4.10 33 KernelVersion: v4.10
34 Contact: linux-rdma@vger.kernel.org 34 Contact: linux-rdma@vger.kernel.org
35 Description: 35 Description:
36 (RO) Display firmware version 36 (RO) Display firmware version
37 37
38 38
39 What: /sys/class/infiniband/<device> 39 What: /sys/class/infiniband/<device>/ports/<port-num>/lid
40 What: /sys/class/infiniband/<device> 40 What: /sys/class/infiniband/<device>/ports/<port-num>/rate
41 What: /sys/class/infiniband/<device> 41 What: /sys/class/infiniband/<device>/ports/<port-num>/lid_mask_count
42 What: /sys/class/infiniband/<device> 42 What: /sys/class/infiniband/<device>/ports/<port-num>/sm_sl
43 What: /sys/class/infiniband/<device> 43 What: /sys/class/infiniband/<device>/ports/<port-num>/sm_lid
44 What: /sys/class/infiniband/<device> 44 What: /sys/class/infiniband/<device>/ports/<port-num>/state
45 What: /sys/class/infiniband/<device> 45 What: /sys/class/infiniband/<device>/ports/<port-num>/phys_state
46 What: /sys/class/infiniband/<device> 46 What: /sys/class/infiniband/<device>/ports/<port-num>/cap_mask
47 Date: Apr, 2005 47 Date: Apr, 2005
48 KernelVersion: v2.6.12 48 KernelVersion: v2.6.12
49 Contact: linux-rdma@vger.kernel.org 49 Contact: linux-rdma@vger.kernel.org
50 Description: 50 Description:
51 51
52 =============== ============== 52 =============== ===============================================
53 lid: (RO) Port LID 53 lid: (RO) Port LID
54 54
55 rate: (RO) Port data 55 rate: (RO) Port data rate (active width * active
56 speed) 56 speed)
57 57
58 lid_mask_count: (RO) Port LID 58 lid_mask_count: (RO) Port LID mask count
59 59
60 sm_sl: (RO) Subnet ma 60 sm_sl: (RO) Subnet manager SL for port's subnet
61 61
62 sm_lid: (RO) Subnet ma 62 sm_lid: (RO) Subnet manager LID for port's subnet
63 63
64 state: (RO) Port stat 64 state: (RO) Port state (DOWN, INIT, ARMED, ACTIVE or
65 ACTIVE_DEFER) 65 ACTIVE_DEFER)
66 66
67 phys_state: (RO) Port phys 67 phys_state: (RO) Port physical state (Sleep, Polling,
68 LinkUp, etc) 68 LinkUp, etc)
69 69
70 cap_mask: (RO) Port capa 70 cap_mask: (RO) Port capability mask. 2 bits here are
71 settable- IsCo 71 settable- IsCommunicationManagementSupported
72 (set when CM m 72 (set when CM module is loaded) and IsSM (set
73 via open of is 73 via open of issmN file).
74 =============== ============== 74 =============== ===============================================
75 75
76 76
77 What: /sys/class/infiniband/<device> 77 What: /sys/class/infiniband/<device>/ports/<port-num>/link_layer
78 Date: Oct, 2010 78 Date: Oct, 2010
79 KernelVersion: v2.6.37 79 KernelVersion: v2.6.37
80 Contact: linux-rdma@vger.kernel.org 80 Contact: linux-rdma@vger.kernel.org
81 Description: 81 Description:
82 (RO) Link layer type informati 82 (RO) Link layer type information (Infiniband or Ethernet type)
83 83
84 84
85 What: /sys/class/infiniband/<device> 85 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/symbol_error
86 What: /sys/class/infiniband/<device> 86 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_errors
87 What: /sys/class/infiniband/<device> 87 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_remote_physical_errors
88 What: /sys/class/infiniband/<device> 88 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_switch_relay_errors
89 What: /sys/class/infiniband/<device> 89 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/link_error_recovery
90 What: /sys/class/infiniband/<device> 90 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_xmit_constraint_errors
91 What: /sys/class/infiniband/<device> 91 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_contraint_errors
92 What: /sys/class/infiniband/<device> 92 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/local_link_integrity_errors
93 What: /sys/class/infiniband/<device> 93 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/excessive_buffer_overrun_errors
94 What: /sys/class/infiniband/<device> 94 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_xmit_data
95 What: /sys/class/infiniband/<device> 95 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_data
96 What: /sys/class/infiniband/<device> 96 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_xmit_packets
97 What: /sys/class/infiniband/<device> 97 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_rcv_packets
98 What: /sys/class/infiniband/<device> 98 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/unicast_rcv_packets
99 What: /sys/class/infiniband/<device> 99 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/unicast_xmit_packets
100 What: /sys/class/infiniband/<device> 100 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/multicast_rcv_packets
101 What: /sys/class/infiniband/<device> 101 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/multicast_xmit_packets
102 What: /sys/class/infiniband/<device> 102 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/link_downed
103 What: /sys/class/infiniband/<device> 103 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_xmit_discards
104 What: /sys/class/infiniband/<device> 104 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/VL15_dropped
105 What: /sys/class/infiniband/<device> 105 What: /sys/class/infiniband/<device>/ports/<port-num>/counters/port_xmit_wait
106 Date: Apr, 2005 106 Date: Apr, 2005
107 KernelVersion: v2.6.12 107 KernelVersion: v2.6.12
108 Contact: linux-rdma@vger.kernel.org 108 Contact: linux-rdma@vger.kernel.org
109 Description: 109 Description:
110 **Errors info**: 110 **Errors info**:
111 111
112 symbol_error: (RO) Total numbe 112 symbol_error: (RO) Total number of minor link errors detected on
113 one or more physical lanes. 113 one or more physical lanes.
114 114
115 port_rcv_errors : (RO) Total n 115 port_rcv_errors : (RO) Total number of packets containing an
116 error that were received on th 116 error that were received on the port.
117 117
118 port_rcv_remote_physical_error 118 port_rcv_remote_physical_errors : (RO) Total number of packets
119 marked with the EBP delimiter 119 marked with the EBP delimiter received on the port.
120 120
121 port_rcv_switch_relay_errors : 121 port_rcv_switch_relay_errors : (RO) Total number of packets
122 received on the port that were 122 received on the port that were discarded because they could not
123 be forwarded by the switch rel 123 be forwarded by the switch relay.
124 124
125 link_error_recovery: (RO) Tota 125 link_error_recovery: (RO) Total number of times the Port
126 Training state machine has suc 126 Training state machine has successfully completed the link error
127 recovery process. 127 recovery process.
128 128
129 port_xmit_constraint_errors: ( 129 port_xmit_constraint_errors: (RO) Total number of packets not
130 transmitted from the switch ph 130 transmitted from the switch physical port due to outbound raw
131 filtering or failing outbound 131 filtering or failing outbound partition or IP version check.
132 132
133 port_rcv_constraint_errors: (R 133 port_rcv_constraint_errors: (RO) Total number of packets
134 received on the switch physica 134 received on the switch physical port that are discarded due to
135 inbound raw filtering or faili 135 inbound raw filtering or failing inbound partition or IP version
136 check. 136 check.
137 137
138 local_link_integrity_errors: ( 138 local_link_integrity_errors: (RO) The number of times that the
139 count of local physical errors 139 count of local physical errors exceeded the threshold specified
140 by LocalPhyErrors 140 by LocalPhyErrors
141 141
142 excessive_buffer_overrun_error 142 excessive_buffer_overrun_errors: (RO) This counter, indicates an
143 input buffer overrun. It indic 143 input buffer overrun. It indicates possible misconfiguration of
144 a port, either by the Subnet M 144 a port, either by the Subnet Manager (SM) or by user
145 intervention. It can also indi 145 intervention. It can also indicate hardware issues or extremely
146 poor link signal integrity 146 poor link signal integrity
147 147
148 **Data info**: 148 **Data info**:
149 149
150 port_xmit_data: (RO) Total num 150 port_xmit_data: (RO) Total number of data octets, divided by 4
151 (lanes), transmitted on all VL 151 (lanes), transmitted on all VLs. This is 64 bit counter
152 152
153 port_rcv_data: (RO) Total numb 153 port_rcv_data: (RO) Total number of data octets, divided by 4
154 (lanes), received on all VLs. 154 (lanes), received on all VLs. This is 64 bit counter.
155 155
156 port_xmit_packets: (RO) Total 156 port_xmit_packets: (RO) Total number of packets transmitted on
157 all VLs from this port. This m 157 all VLs from this port. This may include packets with errors.
158 This is 64 bit counter. 158 This is 64 bit counter.
159 159
160 port_rcv_packets: (RO) Total n 160 port_rcv_packets: (RO) Total number of packets (this may include
161 packets containing Errors. Thi 161 packets containing Errors. This is 64 bit counter.
162 162
163 link_downed: (RO) Total number 163 link_downed: (RO) Total number of times the Port Training state
164 machine has failed the link er 164 machine has failed the link error recovery process and downed
165 the link. 165 the link.
166 166
167 unicast_rcv_packets: (RO) Tota 167 unicast_rcv_packets: (RO) Total number of unicast packets,
168 including unicast packets cont 168 including unicast packets containing errors.
169 169
170 unicast_xmit_packets: (RO) Tot 170 unicast_xmit_packets: (RO) Total number of unicast packets
171 transmitted on all VLs from th 171 transmitted on all VLs from the port. This may include unicast
172 packets with errors. 172 packets with errors.
173 173
174 multicast_rcv_packets: (RO) To 174 multicast_rcv_packets: (RO) Total number of multicast packets,
175 including multicast packets co 175 including multicast packets containing errors.
176 176
177 multicast_xmit_packets: (RO) T 177 multicast_xmit_packets: (RO) Total number of multicast packets
178 transmitted on all VLs from th 178 transmitted on all VLs from the port. This may include multicast
179 packets with errors. 179 packets with errors.
180 180
181 **Misc info**: 181 **Misc info**:
182 182
183 port_xmit_discards: (RO) Total 183 port_xmit_discards: (RO) Total number of outbound packets
184 discarded by the port because 184 discarded by the port because the port is down or congested.
185 185
186 VL15_dropped: (RO) Number of i 186 VL15_dropped: (RO) Number of incoming VL15 packets dropped due
187 to resource limitations (e.g., 187 to resource limitations (e.g., lack of buffers) of the port.
188 188
189 port_xmit_wait: (RO) The numbe 189 port_xmit_wait: (RO) The number of ticks during which the port
190 had data to transmit but no da 190 had data to transmit but no data was sent during the entire tick
191 (either because of insufficien 191 (either because of insufficient credits or because of lack of
192 arbitration). 192 arbitration).
193 193
194 Each of these files contains t 194 Each of these files contains the corresponding value from the
195 port's Performance Management 195 port's Performance Management PortCounters attribute, as
196 described in the InfiniBand Ar 196 described in the InfiniBand Architecture Specification.
197 197
198 198
199 What: /sys/class/infiniband/<device- 199 What: /sys/class/infiniband/<device-name>/hw_counters/lifespan
200 What: /sys/class/infiniband/<device- 200 What: /sys/class/infiniband/<device-name>/ports/<port-num>/hw_counters/lifespan
201 Date: May, 2016 201 Date: May, 2016
202 KernelVersion: 4.6 202 KernelVersion: 4.6
203 Contact: linux-rdma@vger.kernel.org 203 Contact: linux-rdma@vger.kernel.org
204 Description: 204 Description:
205 The optional "hw_counters" sub 205 The optional "hw_counters" subdirectory can be under either the
206 parent device or the port subd 206 parent device or the port subdirectories or both. If present,
207 there are a list of counters p 207 there are a list of counters provided by the hardware. They may
208 match some of the counters in 208 match some of the counters in the counters directory, but they
209 often include many other count 209 often include many other counters. In addition to the various
210 counters, there will be a file 210 counters, there will be a file named "lifespan" that configures
211 how frequently the core should 211 how frequently the core should update the counters when they are
212 being accessed (counters are n 212 being accessed (counters are not updated if they are not being
213 accessed). The lifespan is in 213 accessed). The lifespan is in milliseconds and defaults to 10
214 unless set to something else b 214 unless set to something else by the driver. Users may echo a
215 value between 0-10000 to the l 215 value between 0-10000 to the lifespan file to set the length
216 of time between updates in mil 216 of time between updates in milliseconds.
217 217
218 218
219 What: /sys/class/infiniband/<hca>/po 219 What: /sys/class/infiniband/<hca>/ports/<port-number>/gid_attrs/ndevs/<gid-index>
220 Date: November 29, 2015 220 Date: November 29, 2015
221 KernelVersion: 4.4.0 221 KernelVersion: 4.4.0
222 Contact: linux-rdma@vger.kernel.org 222 Contact: linux-rdma@vger.kernel.org
223 Description: The net-device's name associat 223 Description: The net-device's name associated with the GID resides
224 at index <gid-index>. 224 at index <gid-index>.
225 225
226 What: /sys/class/infiniband/<hca>/po 226 What: /sys/class/infiniband/<hca>/ports/<port-number>/gid_attrs/types/<gid-index>
227 Date: November 29, 2015 227 Date: November 29, 2015
228 KernelVersion: 4.4.0 228 KernelVersion: 4.4.0
229 Contact: linux-rdma@vger.kernel.org 229 Contact: linux-rdma@vger.kernel.org
230 Description: The RoCE type of the associate 230 Description: The RoCE type of the associated GID resides at index <gid-index>.
231 This could either be "IB/RoCE 231 This could either be "IB/RoCE v1" for IB and RoCE v1 based GIDs
232 or "RoCE v2" for RoCE v2 based 232 or "RoCE v2" for RoCE v2 based GIDs.
233 233
234 234
235 What: /sys/class/infiniband_mad/umad !! 235 What: /sys/class/infiniband_mad/umadN/ibdev
236 What: /sys/class/infiniband_mad/umad !! 236 What: /sys/class/infiniband_mad/umadN/port
237 What: /sys/class/infiniband_mad/issm !! 237 What: /sys/class/infiniband_mad/issmN/ibdev
238 What: /sys/class/infiniband_mad/issm !! 238 What: /sys/class/infiniband_mad/issmN/port
239 Date: Apr, 2005 239 Date: Apr, 2005
240 KernelVersion: v2.6.12 240 KernelVersion: v2.6.12
241 Contact: linux-rdma@vger.kernel.org 241 Contact: linux-rdma@vger.kernel.org
242 Description: 242 Description:
243 Each port of each InfiniBand d 243 Each port of each InfiniBand device has a "umad" device and an
244 "issm" device attached. For ex 244 "issm" device attached. For example, a two-port HCA will have
245 two umad devices and two issm 245 two umad devices and two issm devices, while a switch will have
246 one device of each type (for s 246 one device of each type (for switch port 0).
247 247
248 ======= ====================== 248 ======= =====================================
249 ibdev: (RO) Show Infiniband ( 249 ibdev: (RO) Show Infiniband (IB) device name
250 250
251 port: (RO) Display port numb 251 port: (RO) Display port number
252 ======= ====================== 252 ======= =====================================
253 253
254 254
255 What: /sys/class/infiniband_mad/abi_ 255 What: /sys/class/infiniband_mad/abi_version
256 Date: Apr, 2005 256 Date: Apr, 2005
257 KernelVersion: v2.6.12 257 KernelVersion: v2.6.12
258 Contact: linux-rdma@vger.kernel.org 258 Contact: linux-rdma@vger.kernel.org
259 Description: 259 Description:
260 (RO) Value is incremented if a 260 (RO) Value is incremented if any changes are made that break
261 userspace ABI compatibility of 261 userspace ABI compatibility of umad & issm devices.
262 262
263 263
264 What: /sys/class/infiniband_verbs/uv !! 264 What: /sys/class/infiniband_verbs/uverbsN/ibdev
265 What: /sys/class/infiniband_verbs/uv !! 265 What: /sys/class/infiniband_verbs/uverbsN/abi_version
266 Date: Sept, 2005 266 Date: Sept, 2005
267 KernelVersion: v2.6.14 267 KernelVersion: v2.6.14
268 Contact: linux-rdma@vger.kernel.org 268 Contact: linux-rdma@vger.kernel.org
269 Description: 269 Description:
270 =============== ============== 270 =============== ===========================================
271 ibdev: (RO) Display I 271 ibdev: (RO) Display Infiniband (IB) device name
272 272
273 abi_version: (RO) Show ABI 273 abi_version: (RO) Show ABI version of IB device specific
274 interfaces. 274 interfaces.
275 =============== ============== 275 =============== ===========================================
276 276
277 277
278 What: /sys/class/infiniband_verbs/ab 278 What: /sys/class/infiniband_verbs/abi_version
279 Date: Sep, 2005 279 Date: Sep, 2005
280 KernelVersion: v2.6.14 280 KernelVersion: v2.6.14
281 Contact: linux-rdma@vger.kernel.org 281 Contact: linux-rdma@vger.kernel.org
282 Description: 282 Description:
283 (RO) Value is incremented if a 283 (RO) Value is incremented if any changes are made that break
284 userspace ABI compatibility of 284 userspace ABI compatibility of uverbs devices.
285 285
286 286
287 sysfs interface for Mellanox IB HCA low-level 287 sysfs interface for Mellanox IB HCA low-level driver (mthca)
288 ---------------------------------------------- 288 ------------------------------------------------------------
289 289
290 What: /sys/class/infiniband/mthcaX/h 290 What: /sys/class/infiniband/mthcaX/hw_rev
291 What: /sys/class/infiniband/mthcaX/h 291 What: /sys/class/infiniband/mthcaX/hca_type
292 What: /sys/class/infiniband/mthcaX/b 292 What: /sys/class/infiniband/mthcaX/board_id
293 Date: Apr, 2005 293 Date: Apr, 2005
294 KernelVersion: v2.6.12 294 KernelVersion: v2.6.12
295 Contact: linux-rdma@vger.kernel.org 295 Contact: linux-rdma@vger.kernel.org
296 Description: 296 Description:
297 =============== ============== 297 =============== ================================================
298 hw_rev: (RO) Hardware 298 hw_rev: (RO) Hardware revision number
299 299
300 hca_type: (RO) Host Chan 300 hca_type: (RO) Host Channel Adapter type: MT23108, MT25208
301 (MT23108 compa 301 (MT23108 compat mode), MT25208 or MT25204
302 302
303 board_id: (RO) Manufactu 303 board_id: (RO) Manufacturing board ID
304 =============== ============== 304 =============== ================================================
305 305
306 306
307 sysfs interface for Mellanox ConnectX HCA IB d 307 sysfs interface for Mellanox ConnectX HCA IB driver (mlx4)
308 ---------------------------------------------- 308 ----------------------------------------------------------
309 309
310 What: /sys/class/infiniband/mlx4_X/h 310 What: /sys/class/infiniband/mlx4_X/hw_rev
311 What: /sys/class/infiniband/mlx4_X/h 311 What: /sys/class/infiniband/mlx4_X/hca_type
312 What: /sys/class/infiniband/mlx4_X/b 312 What: /sys/class/infiniband/mlx4_X/board_id
313 Date: Sep, 2007 313 Date: Sep, 2007
314 KernelVersion: v2.6.24 314 KernelVersion: v2.6.24
315 Contact: linux-rdma@vger.kernel.org 315 Contact: linux-rdma@vger.kernel.org
316 Description: 316 Description:
317 =============== ============== 317 =============== ===============================
318 hw_rev: (RO) Hardware 318 hw_rev: (RO) Hardware revision number
319 319
320 hca_type: (RO) Host chan 320 hca_type: (RO) Host channel adapter type
321 321
322 board_id: (RO) Manufactu 322 board_id: (RO) Manufacturing board ID
323 =============== ============== 323 =============== ===============================
324 324
325 325
326 What: /sys/class/infiniband/mlx4_X/i 326 What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/gids/<n>
327 What: /sys/class/infiniband/mlx4_X/i 327 What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/admin_guids/<n>
328 What: /sys/class/infiniband/mlx4_X/i 328 What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/pkeys/<n>
329 What: /sys/class/infiniband/mlx4_X/i 329 What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/mcgs/
330 What: /sys/class/infiniband/mlx4_X/i 330 What: /sys/class/infiniband/mlx4_X/iov/ports/<pci-slot-num>/ports/<m>/gid_idx/0
331 What: /sys/class/infiniband/mlx4_X/i 331 What: /sys/class/infiniband/mlx4_X/iov/ports/<pci-slot-num>/ports/<m>/pkey_idx/<n>
332 Date: Aug, 2012 332 Date: Aug, 2012
333 KernelVersion: v3.6.15 333 KernelVersion: v3.6.15
334 Contact: linux-rdma@vger.kernel.org 334 Contact: linux-rdma@vger.kernel.org
335 Description: 335 Description:
336 The sysfs iov directory is use 336 The sysfs iov directory is used to manage and examine the port
337 P_Key and guid paravirtualizat 337 P_Key and guid paravirtualization. This directory is added only
338 for the master -- slaves do no 338 for the master -- slaves do not have it.
339 339
340 Under iov/ports, the administr 340 Under iov/ports, the administrator may examine the gid and P_Key
341 tables as they are present in 341 tables as they are present in the device (and as are seen in the
342 "network view" presented to th 342 "network view" presented to the SM).
343 343
344 The "pkeys" and "gids" subdire 344 The "pkeys" and "gids" subdirectories contain one file for each
345 entry in the port's P_Key or G 345 entry in the port's P_Key or GID table respectively. For
346 example, ports/1/pkeys/10 cont 346 example, ports/1/pkeys/10 contains the value at index 10 in port
347 1's P_Key table. 347 1's P_Key table.
348 348
349 ======================= ====== 349 ======================= ==========================================
350 gids/<n>: (RO) T 350 gids/<n>: (RO) The physical port gids n = 0..127
351 351
352 admin_guids/<n>: (RW) A 352 admin_guids/<n>: (RW) Allows examining or changing the
353 admini 353 administrative state of a given GUID
354 n = 0. 354 n = 0..127
355 355
356 pkeys/<n>: (RO) D 356 pkeys/<n>: (RO) Displays the contents of the physical
357 key ta 357 key table n = 0..126
358 358
359 mcgs/: (RO) M !! 359 mcgs/: (RO) Muticast group table
360 360
361 <m>/gid_idx/0: (RO) D 361 <m>/gid_idx/0: (RO) Display the GID mapping m = 1..2
362 362
363 <m>/pkey_idx/<n>: (RW) W 363 <m>/pkey_idx/<n>: (RW) Writable except for RoCE pkeys.
364 m = 1. 364 m = 1..2, n = 0..126
365 365
366 Under 366 Under the iov/<pci slot number>
367 direct 367 directories, the admin may map the index
368 number 368 numbers in the physical tables (as under
369 iov/po 369 iov/ports) to the paravirtualized index
370 number 370 numbers that guests see.
371 371
372 For ex 372 For example, if the administrator, for
373 port 1 373 port 1 on guest 2 maps physical pkey
374 index 374 index 10 to virtual index 1, then that
375 guest, 375 guest, whenever it uses its pkey index
376 1, wil 376 1, will actually be using the real pkey
377 index 377 index 10.
378 ======================= ====== 378 ======================= ==========================================
379 379
380 380
381 What: /sys/class/infiniband/mlx4_X/i 381 What: /sys/class/infiniband/mlx4_X/iov/<pci-slot-num>/ports/<m>/smi_enabled
382 What: /sys/class/infiniband/mlx4_X/i 382 What: /sys/class/infiniband/mlx4_X/iov/<pci-slot-num>/ports/<m>/enable_smi_admin
383 Date: May, 2014 383 Date: May, 2014
384 KernelVersion: v3.15.7 384 KernelVersion: v3.15.7
385 Contact: linux-rdma@vger.kernel.org 385 Contact: linux-rdma@vger.kernel.org
386 Description: 386 Description:
387 Enabling QP0 on VFs for select 387 Enabling QP0 on VFs for selected VF/port. By default, no VFs are
388 enabled for QP0 operation. 388 enabled for QP0 operation.
389 389
390 ================= ==== ======= 390 ================= ==== ===========================================
391 smi_enabled: (RO) Indicat 391 smi_enabled: (RO) Indicates whether smi is currently enabled
392 for the 392 for the indicated VF/port
393 393
394 enable_smi_admin: (RW) Used by 394 enable_smi_admin: (RW) Used by the admin to request that smi
395 capabil 395 capability be enabled or disabled for the
396 indicat 396 indicated VF/port. 0 = disable, 1 = enable.
397 ================= ==== ======= 397 ================= ==== ===========================================
398 398
399 The requested enablement will 399 The requested enablement will occur at the next reset of the VF
400 (e.g. driver restart on the VM 400 (e.g. driver restart on the VM which owns the VF).
401 401
402 402
403 sysfs interface for Chelsio T4/T5 RDMA driver 403 sysfs interface for Chelsio T4/T5 RDMA driver (cxgb4)
404 ---------------------------------------------- 404 -----------------------------------------------------
405 405
406 What: /sys/class/infiniband/cxgb4_X/ 406 What: /sys/class/infiniband/cxgb4_X/hw_rev
407 What: /sys/class/infiniband/cxgb4_X/ 407 What: /sys/class/infiniband/cxgb4_X/hca_type
408 What: /sys/class/infiniband/cxgb4_X/ 408 What: /sys/class/infiniband/cxgb4_X/board_id
409 Date: Apr, 2010 409 Date: Apr, 2010
410 KernelVersion: v2.6.35 410 KernelVersion: v2.6.35
411 Contact: linux-rdma@vger.kernel.org 411 Contact: linux-rdma@vger.kernel.org
412 Description: 412 Description:
413 413
414 =============== ============== 414 =============== =============================================
415 hw_rev: (RO) Hardware 415 hw_rev: (RO) Hardware revision number
416 416
417 hca_type: (RO) Driver sh 417 hca_type: (RO) Driver short name. Should normally match
418 the name in it 418 the name in its bus driver structure (e.g.
419 pci_driver::na 419 pci_driver::name)
420 420
421 board_id: (RO) Manufactu 421 board_id: (RO) Manufacturing board id. (Vendor + device
422 information) 422 information)
423 =============== ============== 423 =============== =============================================
424 424
425 425
426 sysfs interface for Intel IB driver qib 426 sysfs interface for Intel IB driver qib
427 --------------------------------------- 427 ---------------------------------------
428 428
429 What: /sys/class/infiniband/qibX/ver 429 What: /sys/class/infiniband/qibX/version
430 What: /sys/class/infiniband/qibX/hw_ 430 What: /sys/class/infiniband/qibX/hw_rev
431 What: /sys/class/infiniband/qibX/hca 431 What: /sys/class/infiniband/qibX/hca_type
432 What: /sys/class/infiniband/qibX/boa 432 What: /sys/class/infiniband/qibX/board_id
433 What: /sys/class/infiniband/qibX/boa 433 What: /sys/class/infiniband/qibX/boardversion
434 What: /sys/class/infiniband/qibX/nct 434 What: /sys/class/infiniband/qibX/nctxts
435 What: /sys/class/infiniband/qibX/loc 435 What: /sys/class/infiniband/qibX/localbus_info
436 What: /sys/class/infiniband/qibX/tem 436 What: /sys/class/infiniband/qibX/tempsense
437 What: /sys/class/infiniband/qibX/ser 437 What: /sys/class/infiniband/qibX/serial
438 What: /sys/class/infiniband/qibX/nfr 438 What: /sys/class/infiniband/qibX/nfreectxts
439 What: /sys/class/infiniband/qibX/chi 439 What: /sys/class/infiniband/qibX/chip_reset
440 Date: May, 2010 440 Date: May, 2010
441 KernelVersion: v2.6.35 441 KernelVersion: v2.6.35
442 Contact: linux-rdma@vger.kernel.org 442 Contact: linux-rdma@vger.kernel.org
443 Description: 443 Description:
444 =============== ============== 444 =============== ======================================================
445 version: (RO) Display v 445 version: (RO) Display version information of installed software
446 and drivers. 446 and drivers.
447 447
448 hw_rev: (RO) Hardware 448 hw_rev: (RO) Hardware revision number
449 449
450 hca_type: (RO) Host chan 450 hca_type: (RO) Host channel adapter type
451 451
452 board_id: (RO) Manufactu 452 board_id: (RO) Manufacturing board id
453 453
454 boardversion: (RO) Current v 454 boardversion: (RO) Current version of the chip architecture
455 455
456 nctxts: (RO) Return th 456 nctxts: (RO) Return the number of user ports (contexts)
457 available 457 available
458 458
459 localbus_info: (RO) Human rea 459 localbus_info: (RO) Human readable localbus info
460 460
461 tempsense: (RO) Display t 461 tempsense: (RO) Display temp sense registers in decimal
462 462
463 serial: (RO) Serial nu 463 serial: (RO) Serial number of the HCA
464 464
465 nfreectxts: (RO) The numbe 465 nfreectxts: (RO) The number of free user ports (contexts)
466 available. 466 available.
467 467
468 chip_reset: (WO) Reset the 468 chip_reset: (WO) Reset the chip if possible by writing
469 "reset" to thi 469 "reset" to this file. Only allowed if no user
470 contexts are o 470 contexts are open that use chip resources.
471 =============== ============== 471 =============== ======================================================
472 472
473 473
474 What: /sys/class/infiniband/qibX/por !! 474 What: /sys/class/infiniband/qibX/ports/N/sl2vl/[0-15]
475 Date: May, 2010 475 Date: May, 2010
476 KernelVersion: v2.6.35 476 KernelVersion: v2.6.35
477 Contact: linux-rdma@vger.kernel.org 477 Contact: linux-rdma@vger.kernel.org
478 Description: 478 Description:
479 (RO) The directory contains 16 479 (RO) The directory contains 16 files numbered 0-15 that specify
480 the Service Level (SL). Listin 480 the Service Level (SL). Listing the SL files returns the Virtual
481 Lane (VL) as programmed by the 481 Lane (VL) as programmed by the SL.
482 482
483 What: /sys/class/infiniband/qibX/por !! 483 What: /sys/class/infiniband/qibX/ports/N/CCMgtA/cc_settings_bin
484 What: /sys/class/infiniband/qibX/por !! 484 What: /sys/class/infiniband/qibX/ports/N/CCMgtA/cc_table_bin
485 Date: May, 2010 485 Date: May, 2010
486 KernelVersion: v2.6.35 486 KernelVersion: v2.6.35
487 Contact: linux-rdma@vger.kernel.org 487 Contact: linux-rdma@vger.kernel.org
488 Description: 488 Description:
489 Per-port congestion control. B 489 Per-port congestion control. Both are binary attributes.
490 490
491 =============== ============== 491 =============== ================================================
492 cc_table_bin (RO) Congestio 492 cc_table_bin (RO) Congestion control table size followed by
493 table entries. 493 table entries.
494 494
495 cc_settings_bin (RO) Congestio 495 cc_settings_bin (RO) Congestion settings: port control, control
496 map and an arr 496 map and an array of 16 entries for the
497 congestion ent 497 congestion entries - increase, timer, event log
498 trigger thresh 498 trigger threshold and the minimum injection rate
499 delay. 499 delay.
500 =============== ============== 500 =============== ================================================
501 501
502 What: /sys/class/infiniband/qibX/por !! 502 What: /sys/class/infiniband/qibX/ports/N/linkstate/loopback
503 What: /sys/class/infiniband/qibX/por !! 503 What: /sys/class/infiniband/qibX/ports/N/linkstate/led_override
504 What: /sys/class/infiniband/qibX/por !! 504 What: /sys/class/infiniband/qibX/ports/N/linkstate/hrtbt_enable
505 What: /sys/class/infiniband/qibX/por !! 505 What: /sys/class/infiniband/qibX/ports/N/linkstate/status
506 What: /sys/class/infiniband/qibX/por !! 506 What: /sys/class/infiniband/qibX/ports/N/linkstate/status_str
507 Date: May, 2010 507 Date: May, 2010
508 KernelVersion: v2.6.35 508 KernelVersion: v2.6.35
509 Contact: linux-rdma@vger.kernel.org 509 Contact: linux-rdma@vger.kernel.org
510 Description: 510 Description:
511 [to be documented] 511 [to be documented]
512 512
513 =============== ============== 513 =============== ===============================================
514 loopback: (WO) 514 loopback: (WO)
515 led_override: (WO) 515 led_override: (WO)
516 hrtbt_enable: (RW) 516 hrtbt_enable: (RW)
517 status: (RO) 517 status: (RO)
518 518
519 status_str: (RO) Displays 519 status_str: (RO) Displays information about the link state,
520 possible cable 520 possible cable/switch problems, and hardware
521 errors. Possib 521 errors. Possible states are- "Initted",
522 "Present", "IB 522 "Present", "IB_link_up", "IB_configured" or
523 "Fatal_Hardwar 523 "Fatal_Hardware_Error".
524 =============== ============== 524 =============== ===============================================
525 525
526 What: /sys/class/infiniband/qibX/por !! 526 What: /sys/class/infiniband/qibX/ports/N/diag_counters/rc_resends
527 What: /sys/class/infiniband/qibX/por !! 527 What: /sys/class/infiniband/qibX/ports/N/diag_counters/seq_naks
528 What: /sys/class/infiniband/qibX/por !! 528 What: /sys/class/infiniband/qibX/ports/N/diag_counters/rdma_seq
529 What: /sys/class/infiniband/qibX/por !! 529 What: /sys/class/infiniband/qibX/ports/N/diag_counters/rnr_naks
530 What: /sys/class/infiniband/qibX/por !! 530 What: /sys/class/infiniband/qibX/ports/N/diag_counters/other_naks
531 What: /sys/class/infiniband/qibX/por !! 531 What: /sys/class/infiniband/qibX/ports/N/diag_counters/rc_timeouts
532 What: /sys/class/infiniband/qibX/por !! 532 What: /sys/class/infiniband/qibX/ports/N/diag_counters/look_pkts
533 What: /sys/class/infiniband/qibX/por !! 533 What: /sys/class/infiniband/qibX/ports/N/diag_counters/pkt_drops
534 What: /sys/class/infiniband/qibX/por !! 534 What: /sys/class/infiniband/qibX/ports/N/diag_counters/dma_wait
535 What: /sys/class/infiniband/qibX/por !! 535 What: /sys/class/infiniband/qibX/ports/N/diag_counters/unaligned
536 Date: May, 2010 536 Date: May, 2010
537 KernelVersion: v2.6.35 537 KernelVersion: v2.6.35
538 Contact: linux-rdma@vger.kernel.org 538 Contact: linux-rdma@vger.kernel.org
539 Description: 539 Description:
540 [to be documented] 540 [to be documented]
541 541
542 542
543 sysfs interface for Mellanox Connect-IB HCA dr 543 sysfs interface for Mellanox Connect-IB HCA driver mlx5
544 ---------------------------------------------- 544 -------------------------------------------------------
545 545
546 What: /sys/class/infiniband/mlx5_X/h 546 What: /sys/class/infiniband/mlx5_X/hw_rev
547 What: /sys/class/infiniband/mlx5_X/h 547 What: /sys/class/infiniband/mlx5_X/hca_type
548 What: /sys/class/infiniband/mlx5_X/r 548 What: /sys/class/infiniband/mlx5_X/reg_pages
549 What: /sys/class/infiniband/mlx5_X/f 549 What: /sys/class/infiniband/mlx5_X/fw_pages
550 Date: Jul, 2013 550 Date: Jul, 2013
551 KernelVersion: v3.11 551 KernelVersion: v3.11
552 Contact: linux-rdma@vger.kernel.org 552 Contact: linux-rdma@vger.kernel.org
553 Description: 553 Description:
554 [to be documented] 554 [to be documented]
555 555
556 556
557 sysfs interface for Cisco VIC (usNIC) Verbs Dr 557 sysfs interface for Cisco VIC (usNIC) Verbs Driver
558 ---------------------------------------------- 558 --------------------------------------------------
559 559
560 What: /sys/class/infiniband/usnic_X/ 560 What: /sys/class/infiniband/usnic_X/board_id
561 What: /sys/class/infiniband/usnic_X/ 561 What: /sys/class/infiniband/usnic_X/config
562 What: /sys/class/infiniband/usnic_X/ 562 What: /sys/class/infiniband/usnic_X/qp_per_vf
563 What: /sys/class/infiniband/usnic_X/ 563 What: /sys/class/infiniband/usnic_X/max_vf
564 What: /sys/class/infiniband/usnic_X/ 564 What: /sys/class/infiniband/usnic_X/cq_per_vf
565 What: /sys/class/infiniband/usnic_X/ 565 What: /sys/class/infiniband/usnic_X/iface
566 Date: Sep, 2013 566 Date: Sep, 2013
567 KernelVersion: v3.14 567 KernelVersion: v3.14
568 Contact: Christian Benvenuti <benve@cisc 568 Contact: Christian Benvenuti <benve@cisco.com>,
569 Dave Goodell <dgoodell@cisco.co 569 Dave Goodell <dgoodell@cisco.com>,
570 linux-rdma@vger.kernel.org 570 linux-rdma@vger.kernel.org
571 Description: 571 Description:
572 572
573 =============== ============== 573 =============== ===============================================
574 board_id: (RO) Manufactu 574 board_id: (RO) Manufacturing board id
575 575
576 config: (RO) Report th 576 config: (RO) Report the configuration for this PF
577 577
578 qp_per_vf: (RO) Queue pai 578 qp_per_vf: (RO) Queue pairs per virtual function.
579 579
580 max_vf: (RO) Max virtu 580 max_vf: (RO) Max virtual functions
581 581
582 cq_per_vf: (RO) Completio 582 cq_per_vf: (RO) Completion queue per virtual function
583 583
584 iface: (RO) Shows whi 584 iface: (RO) Shows which network interface this usNIC
585 entry is assoc 585 entry is associated to (visible with ifconfig).
586 =============== ============== 586 =============== ===============================================
587 587
588 What: /sys/class/infiniband/usnic_X/ 588 What: /sys/class/infiniband/usnic_X/qpn/summary
589 What: /sys/class/infiniband/usnic_X/ 589 What: /sys/class/infiniband/usnic_X/qpn/context
590 Date: Sep, 2013 590 Date: Sep, 2013
591 KernelVersion: v3.14 591 KernelVersion: v3.14
592 Contact: Christian Benvenuti <benve@cisc 592 Contact: Christian Benvenuti <benve@cisco.com>,
593 Dave Goodell <dgoodell@cisco.co 593 Dave Goodell <dgoodell@cisco.com>,
594 linux-rdma@vger.kernel.org 594 linux-rdma@vger.kernel.org
595 Description: 595 Description:
596 [to be documented] 596 [to be documented]
597 597
598 598
599 sysfs interface for Emulex RoCE HCA Driver 599 sysfs interface for Emulex RoCE HCA Driver
600 ------------------------------------------ 600 ------------------------------------------
601 601
602 What: /sys/class/infiniband/ocrdmaX/ 602 What: /sys/class/infiniband/ocrdmaX/hw_rev
603 Date: Feb, 2014 603 Date: Feb, 2014
604 KernelVersion: v3.14 604 KernelVersion: v3.14
605 Description: 605 Description:
606 hw_rev: (RO) Hardware 606 hw_rev: (RO) Hardware revision number
607 607
608 What: /sys/class/infiniband/ocrdmaX/ 608 What: /sys/class/infiniband/ocrdmaX/hca_type
609 Date: Jun, 2014 609 Date: Jun, 2014
610 KernelVersion: v3.16 610 KernelVersion: v3.16
611 Contact: linux-rdma@vger.kernel.org 611 Contact: linux-rdma@vger.kernel.org
612 Description: 612 Description:
613 hca_type: (RO) Display F 613 hca_type: (RO) Display FW version
614 614
615 615
616 sysfs interface for Intel Omni-Path driver (HF 616 sysfs interface for Intel Omni-Path driver (HFI1)
617 ---------------------------------------------- 617 -------------------------------------------------
618 618
619 What: /sys/class/infiniband/hfi1_X/h 619 What: /sys/class/infiniband/hfi1_X/hw_rev
620 What: /sys/class/infiniband/hfi1_X/b 620 What: /sys/class/infiniband/hfi1_X/board_id
621 What: /sys/class/infiniband/hfi1_X/n 621 What: /sys/class/infiniband/hfi1_X/nctxts
622 What: /sys/class/infiniband/hfi1_X/s 622 What: /sys/class/infiniband/hfi1_X/serial
623 What: /sys/class/infiniband/hfi1_X/c 623 What: /sys/class/infiniband/hfi1_X/chip_reset
624 What: /sys/class/infiniband/hfi1_X/b 624 What: /sys/class/infiniband/hfi1_X/boardversion
625 What: /sys/class/infiniband/hfi1_X/n 625 What: /sys/class/infiniband/hfi1_X/nfreectxts
626 What: /sys/class/infiniband/hfi1_X/t 626 What: /sys/class/infiniband/hfi1_X/tempsense
627 Date: May, 2016 627 Date: May, 2016
628 KernelVersion: v4.6 628 KernelVersion: v4.6
629 Contact: linux-rdma@vger.kernel.org 629 Contact: linux-rdma@vger.kernel.org
630 Description: 630 Description:
631 =============== ============== 631 =============== =============================================
632 hw_rev: (RO) Hardware 632 hw_rev: (RO) Hardware revision number
633 633
634 board_id: (RO) Manufactu 634 board_id: (RO) Manufacturing board id
635 635
636 nctxts: (RO) Total con 636 nctxts: (RO) Total contexts available.
637 637
638 serial: (RO) Board ser 638 serial: (RO) Board serial number
639 639
640 chip_reset: (WO) Write "re 640 chip_reset: (WO) Write "reset" to this file to reset the
641 chip if possib 641 chip if possible. Only allowed if no user
642 contexts are o 642 contexts are open that use chip resources.
643 643
644 boardversion: (RO) Human rea 644 boardversion: (RO) Human readable board info
645 645
646 nfreectxts: (RO) The numbe 646 nfreectxts: (RO) The number of free user ports (contexts)
647 available. 647 available.
648 648
649 tempsense: (RO) Thermal s 649 tempsense: (RO) Thermal sense information
650 =============== ============== 650 =============== =============================================
651 651
652 652
653 What: /sys/class/infiniband/hfi1_X/p !! 653 What: /sys/class/infiniband/hfi1_X/ports/N/CCMgtA/cc_settings_bin
654 What: /sys/class/infiniband/hfi1_X/p !! 654 What: /sys/class/infiniband/hfi1_X/ports/N/CCMgtA/cc_table_bin
655 What: /sys/class/infiniband/hfi1_X/p !! 655 What: /sys/class/infiniband/hfi1_X/ports/N/CCMgtA/cc_prescan
656 Date: May, 2016 656 Date: May, 2016
657 KernelVersion: v4.6 657 KernelVersion: v4.6
658 Contact: linux-rdma@vger.kernel.org 658 Contact: linux-rdma@vger.kernel.org
659 Description: 659 Description:
660 Per-port congestion control. 660 Per-port congestion control.
661 661
662 =============== ============== 662 =============== ================================================
663 cc_table_bin (RO) CCA table 663 cc_table_bin (RO) CCA tables used by PSM2 Congestion control
664 table size fol 664 table size followed by table entries. Binary
665 attribute. 665 attribute.
666 666
667 cc_settings_bin (RO) Congestio 667 cc_settings_bin (RO) Congestion settings: port control, control
668 map and an arr 668 map and an array of 16 entries for the
669 congestion ent 669 congestion entries - increase, timer, event log
670 trigger thresh 670 trigger threshold and the minimum injection rate
671 delay. Binary 671 delay. Binary attribute.
672 672
673 cc_prescan (RW) enable pr 673 cc_prescan (RW) enable prescanning for faster BECN
674 response. Writ 674 response. Write "on" to enable and "off" to
675 disable. 675 disable.
676 =============== ============== 676 =============== ================================================
677 677
678 What: /sys/class/infiniband/hfi1_X/p !! 678 What: /sys/class/infiniband/hfi1_X/ports/N/sc2vl/[0-31]
679 What: /sys/class/infiniband/hfi1_X/p !! 679 What: /sys/class/infiniband/hfi1_X/ports/N/sl2sc/[0-31]
680 What: /sys/class/infiniband/hfi1_X/p !! 680 What: /sys/class/infiniband/hfi1_X/ports/N/vl2mtu/[0-15]
681 Date: May, 2016 681 Date: May, 2016
682 KernelVersion: v4.6 682 KernelVersion: v4.6
683 Contact: linux-rdma@vger.kernel.org 683 Contact: linux-rdma@vger.kernel.org
684 Description: 684 Description:
685 =============== ============== 685 =============== ===================================================
686 sc2vl/: (RO) 32 files 686 sc2vl/: (RO) 32 files (0 - 31) used to translate sl->vl
687 687
688 sl2sc/: (RO) 32 files 688 sl2sc/: (RO) 32 files (0 - 31) used to translate sl->sc
689 689
690 vl2mtu/: (RO) 16 files 690 vl2mtu/: (RO) 16 files (0 - 15) used to determine MTU for vl
691 =============== ============== 691 =============== ===================================================
692 692
693 693
694 What: /sys/class/infiniband/hfi1_X/s !! 694 What: /sys/class/infiniband/hfi1_X/sdma_N/cpu_list
695 What: /sys/class/infiniband/hfi1_X/s !! 695 What: /sys/class/infiniband/hfi1_X/sdma_N/vl
696 Date: Sept, 2016 696 Date: Sept, 2016
697 KernelVersion: v4.8 697 KernelVersion: v4.8
698 Contact: linux-rdma@vger.kernel.org 698 Contact: linux-rdma@vger.kernel.org
699 Description: 699 Description:
700 sdma<N>/ contains one director 700 sdma<N>/ contains one directory per sdma engine (0 - 15)
701 701
702 =============== ============== 702 =============== ==============================================
703 cpu_list: (RW) List of c 703 cpu_list: (RW) List of cpus for user-process to sdma
704 engine assignm 704 engine assignment.
705 705
706 vl: (RO) Displays 706 vl: (RO) Displays the virtual lane (vl) the sdma
707 engine maps to 707 engine maps to.
708 =============== ============== 708 =============== ==============================================
709 709
710 This interface gives the user 710 This interface gives the user control on the affinity settings
711 for the device. As an example, 711 for the device. As an example, to set an sdma engine irq
712 affinity and thread affinity o 712 affinity and thread affinity of a user processes to use the
713 sdma engine, which is "near" i 713 sdma engine, which is "near" in terms of NUMA configuration, or
714 physical cpu location, the use 714 physical cpu location, the user will do::
715 715
716 echo "3" > /proc/irq/<N>/smp 716 echo "3" > /proc/irq/<N>/smp_affinity_list
717 echo "4-7" > /sys/devices/.. 717 echo "4-7" > /sys/devices/.../sdma3/cpu_list
718 cat /sys/devices/.../sdma3/v 718 cat /sys/devices/.../sdma3/vl
719 0 719 0
720 echo "8" > /proc/irq/<M>/smp 720 echo "8" > /proc/irq/<M>/smp_affinity_list
721 echo "9-12" > /sys/devices/. 721 echo "9-12" > /sys/devices/.../sdma4/cpu_list
722 cat /sys/devices/.../sdma4/v 722 cat /sys/devices/.../sdma4/vl
723 1 723 1
724 724
725 to make sure that when a proce 725 to make sure that when a process runs on cpus 4,5,6, or 7, and
726 uses vl=0, then sdma engine 3 726 uses vl=0, then sdma engine 3 is selected by the driver, and
727 also the interrupt of the sdma 727 also the interrupt of the sdma engine 3 is steered to cpu 3.
728 Similarly, when a process runs 728 Similarly, when a process runs on cpus 9,10,11, or 12 and sets
729 vl=1, then engine 4 will be se 729 vl=1, then engine 4 will be selected and the irq of the sdma
730 engine 4 is steered to cpu 8. 730 engine 4 is steered to cpu 8. This assumes that in the above N
731 is the irq number of "sdma3", 731 is the irq number of "sdma3", and M is irq number of "sdma4" in
732 the /proc/interrupts file. 732 the /proc/interrupts file.
>> 733
>> 734
>> 735 sysfs interface for Intel(R) X722 iWARP i40iw driver
>> 736 ----------------------------------------------------
>> 737
>> 738 What: /sys/class/infiniband/i40iwX/hw_rev
>> 739 What: /sys/class/infiniband/i40iwX/hca_type
>> 740 What: /sys/class/infiniband/i40iwX/board_id
>> 741 Date: Jan, 2016
>> 742 KernelVersion: v4.10
>> 743 Contact: linux-rdma@vger.kernel.org
>> 744 Description:
>> 745 =============== ==== ========================
>> 746 hw_rev: (RO) Hardware revision number
>> 747
>> 748 hca_type: (RO) Show HCA type (I40IW)
>> 749
>> 750 board_id: (RO) I40IW board ID
>> 751 =============== ==== ========================
>> 752
733 753
734 sysfs interface for QLogic qedr NIC Driver 754 sysfs interface for QLogic qedr NIC Driver
735 ------------------------------------------ 755 ------------------------------------------
736 756
737 What: /sys/class/infiniband/qedrX/hw 757 What: /sys/class/infiniband/qedrX/hw_rev
738 What: /sys/class/infiniband/qedrX/hc 758 What: /sys/class/infiniband/qedrX/hca_type
739 Date: Oct, 2016 759 Date: Oct, 2016
740 KernelVersion: v4.10 760 KernelVersion: v4.10
741 Contact: linux-rdma@vger.kernel.org 761 Contact: linux-rdma@vger.kernel.org
742 Description: 762 Description:
743 763
744 =============== ==== ========= 764 =============== ==== ========================
745 hw_rev: (RO) Hardware 765 hw_rev: (RO) Hardware revision number
746 766
747 hca_type: (RO) Display H 767 hca_type: (RO) Display HCA type
748 =============== ==== ========= 768 =============== ==== ========================
749 769
750 770
751 sysfs interface for VMware Paravirtual RDMA dr 771 sysfs interface for VMware Paravirtual RDMA driver
752 ---------------------------------------------- 772 --------------------------------------------------
753 773
754 What: /sys/class/infiniband/vmw_pvrd 774 What: /sys/class/infiniband/vmw_pvrdmaX/hw_rev
755 What: /sys/class/infiniband/vmw_pvrd 775 What: /sys/class/infiniband/vmw_pvrdmaX/hca_type
756 What: /sys/class/infiniband/vmw_pvrd 776 What: /sys/class/infiniband/vmw_pvrdmaX/board_id
757 Date: Oct, 2016 777 Date: Oct, 2016
758 KernelVersion: v4.10 778 KernelVersion: v4.10
759 Contact: linux-rdma@vger.kernel.org 779 Contact: linux-rdma@vger.kernel.org
760 Description: 780 Description:
761 781
762 =============== ==== ========= 782 =============== ==== =====================================
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 =============== ==== ========= 788 =============== ==== =====================================
769 789
770 790
771 sysfs interface for Broadcom NetXtreme-E RoCE 791 sysfs interface for Broadcom NetXtreme-E RoCE driver
772 ---------------------------------------------- 792 ----------------------------------------------------
773 793
774 What: /sys/class/infiniband/bnxt_reX 794 What: /sys/class/infiniband/bnxt_reX/hw_rev
775 What: /sys/class/infiniband/bnxt_reX 795 What: /sys/class/infiniband/bnxt_reX/hca_type
776 Date: Feb, 2017 796 Date: Feb, 2017
777 KernelVersion: v4.11 797 KernelVersion: v4.11
778 Contact: linux-rdma@vger.kernel.org 798 Contact: linux-rdma@vger.kernel.org
779 Description: 799 Description:
780 =============== ==== ========= 800 =============== ==== =========================
781 hw_rev: (RO) Hardware 801 hw_rev: (RO) Hardware revision number
782 802
783 hca_type: (RO) Host chan 803 hca_type: (RO) Host channel adapter type
784 =============== ==== ========= 804 =============== ==== =========================
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