Lines Matching +full:fixed +full:- +full:parent +full:- +full:rate
1 .. SPDX-License-Identifier: GPL-2.0
13 .. list-table:: Generic parameters implemented
16 * - Name
17 - Mode
18 - Notes
19 * - ``enable_roce``
20 - runtime
21 - mutually exclusive with ``enable_iwarp``
22 * - ``enable_iwarp``
23 - runtime
24 - mutually exclusive with ``enable_roce``
25 * - ``tx_scheduling_layers``
26 - permanent
27 - The ice hardware uses hierarchical scheduling for Tx with a fixed
31 like DCB or devlink-rate (documented below) to configure how much
33 fine-grained control because scheduling parameters can be configured
36 The default 9-layer tree topology was deemed best for most workloads,
38 for some specific cases, this 9-layer topology might not be desired.
40 of 8. Because the maximum radix is limited to 8 in 9-layer topology,
41 the 9th queue has a different parent than the rest, and it's given
55 To address this need, you can switch to a 5-layer topology, which
58 to the same parent in the tree. The obvious drawback of this solution
62 to change the transmit scheduler topology. To use 5-layer topology,
72 .. list-table:: Driver specific parameters implemented
75 * - Name
76 - Mode
77 - Description
78 * - ``local_forwarding``
79 - runtime
80 - Controls loopback behavior by tuning scheduler bandwidth.
85 ``enabled`` - loopback traffic is allowed on port
87 ``disabled`` - loopback traffic is not allowed on this port
89 ``prioritized`` - loopback traffic is prioritized on this port
92 ``prioritized`` provides ability to adjust loopback traffic rate to increase
102 .. list-table:: devlink info versions implemented
105 * - Name
106 - Type
107 - Example
108 - Description
109 * - ``board.id``
110 - fixed
111 - K65390-000
112 - The Product Board Assembly (PBA) identifier of the board.
113 * - ``cgu.id``
114 - fixed
115 - 36
116 - The Clock Generation Unit (CGU) hardware revision identifier.
117 * - ``fw.mgmt``
118 - running
119 - 2.1.7
120 - 3-digit version number of the management firmware running on the
124 * - ``fw.mgmt.api``
125 - running
126 - 1.5.1
127 - 3-digit version number (major.minor.patch) of the API exported over
130 kernel only displayed a 2-digit version number (major.minor).
131 * - ``fw.mgmt.build``
132 - running
133 - 0x305d955f
134 - Unique identifier of the source for the management firmware.
135 * - ``fw.undi``
136 - running
137 - 1.2581.0
138 - Version of the Option ROM containing the UEFI driver. The version is
142 non-breaking changes and reset to 1 when the major version is
145 * - ``fw.psid.api``
146 - running
147 - 0.80
148 - Version defining the format of the flash contents.
149 * - ``fw.bundle_id``
150 - running
151 - 0x80002ec0
152 - Unique identifier of the firmware image file that was loaded onto
154 * - ``fw.app.name``
155 - running
156 - ICE OS Default Package
157 - The name of the DDP package that is active in the device. The DDP
160 * - ``fw.app``
161 - running
162 - 1.3.1.0
163 - The version of the DDP package that is active in the device. Note
166 * - ``fw.app.bundle_id``
167 - running
168 - 0xc0000001
169 - Unique identifier for the DDP package loaded in the device. Also
172 * - ``fw.netlist``
173 - running
174 - 1.1.2000-6.7.0
175 - The version of the netlist module. This module defines the device's
179 * - ``fw.netlist.build``
180 - running
181 - 0xee16ced7
182 - The first 4 bytes of the hash of the netlist module contents.
183 * - ``fw.cgu``
184 - running
185 - 8032.16973825.6021
186 - The version of Clock Generation Unit (CGU). Format:
193 ``devlink-flash`` interface. It supports updating the device flash using a
197 .. list-table:: List of supported overwrite modes
200 * - Bits
201 - Behavior
202 * - ``DEVLINK_FLASH_OVERWRITE_SETTINGS``
203 - Do not preserve settings stored in the flash components being
207 * - ``DEVLINK_FLASH_OVERWRITE_SETTINGS`` and ``DEVLINK_FLASH_OVERWRITE_IDENTIFIERS``
208 - Do not preserve either settings or identifiers. Overwrite everything
260 ice 0000:16:00.0: Active 2 100 - - - 100 - - -
261 ice 0000:16:00.0: 2 50 - 50 - - - - -
262 ice 0000:16:00.0: Pending 4 25 25 25 25 - - - -
263 ice 0000:16:00.0: 4 25 25 - - 25 25 - -
265 ice 0000:16:00.0: 1 100 - - - - - - -
280 .. list-table:: regions implemented
283 * - Name
284 - Description
285 * - ``nvm-flash``
286 - The contents of the entire flash chip, sometimes referred to as
288 * - ``shadow-ram``
289 - The contents of the Shadow RAM, which is loaded from the beginning
293 * - ``device-caps``
294 - The contents of the device firmware's capabilities buffer. Useful to
297 Both the ``nvm-flash`` and ``shadow-ram`` regions can be accessed without a
298 snapshot. The ``device-caps`` region requires a snapshot as the contents are
307 pci/0000:01:00.0/nvm-flash: size 10485760 snapshot [] max 1
308 pci/0000:01:00.0/device-caps: size 4096 snapshot [] max 10
310 $ devlink region new pci/0000:01:00.0/nvm-flash snapshot 1
311 $ devlink region dump pci/0000:01:00.0/nvm-flash snapshot 1
313 $ devlink region dump pci/0000:01:00.0/nvm-flash snapshot 1
319 $ devlink region read pci/0000:01:00.0/nvm-flash snapshot 1 address 0 length 16
322 $ devlink region delete pci/0000:01:00.0/nvm-flash snapshot 1
324 $ devlink region new pci/0000:01:00.0/device-caps snapshot 1
325 $ devlink region dump pci/0000:01:00.0/device-caps snapshot 1
361 $ devlink region delete pci/0000:01:00.0/device-caps snapshot 1
363 Devlink Rate
366 The ``ice`` driver implements devlink-rate API. It allows for offload of
377 devlink-rate API. To configure those features a driver reload is necessary.
384 It's required because devlink-rate requires devlink-port objects to be
392 .. list-table:: Attributes supported
395 * - Name
396 - Description
397 * - ``tx_max``
398 - maximum bandwidth to be consumed by the tree Node. Rate Limit is
400 consume during the course of one second. Rate limit guarantees
404 * - ``tx_share``
405 - minimum bandwidth allocated to a tree node when it is not blocked.
409 * - ``tx_priority``
410 - allows for usage of strict priority arbiter among siblings. This
413 Range 0-7. Nodes with priority 7 have the highest priority and are
416 * - ``tx_weight``
417 - allows for usage of Weighted Fair Queuing arbitration scheme among
419 the strict priority. Range 1-200. Only relative values matter for
434 $ devlink port function rate show
435 pci/0000:4b:00.0/node_25: type node parent node_24
436 pci/0000:4b:00.0/node_24: type node parent node_0
437 pci/0000:4b:00.0/node_32: type node parent node_31
438 pci/0000:4b:00.0/node_31: type node parent node_30
439 pci/0000:4b:00.0/node_30: type node parent node_16
440 pci/0000:4b:00.0/node_19: type node parent node_18
441 pci/0000:4b:00.0/node_18: type node parent node_17
442 pci/0000:4b:00.0/node_17: type node parent node_16
443 pci/0000:4b:00.0/node_14: type node parent node_5
444 pci/0000:4b:00.0/node_5: type node parent node_3
445 pci/0000:4b:00.0/node_13: type node parent node_4
446 pci/0000:4b:00.0/node_12: type node parent node_4
447 pci/0000:4b:00.0/node_11: type node parent node_4
448 pci/0000:4b:00.0/node_10: type node parent node_4
449 pci/0000:4b:00.0/node_9: type node parent node_4
450 pci/0000:4b:00.0/node_8: type node parent node_4
451 pci/0000:4b:00.0/node_7: type node parent node_4
452 pci/0000:4b:00.0/node_6: type node parent node_4
453 pci/0000:4b:00.0/node_4: type node parent node_3
454 pci/0000:4b:00.0/node_3: type node parent node_16
455 pci/0000:4b:00.0/node_16: type node parent node_15
456 pci/0000:4b:00.0/node_15: type node parent node_0
457 pci/0000:4b:00.0/node_2: type node parent node_1
458 pci/0000:4b:00.0/node_1: type node parent node_0
460 pci/0000:4b:00.0/1: type leaf parent node_25
461 pci/0000:4b:00.0/2: type leaf parent node_25
464 $ devlink port function rate add pci/0000:4b:00.0/node_custom parent node_0
467 $ devlink port function rate add pci/0000:4b:00.0/node_custom_1 parent node_custom
470 $ devlink port function rate set pci/0000:4b:00.0/2 parent node_custom_1
473 $ devlink port function rate set pci/0000:4b:00.0/2 tx_weight 5
476 $ devlink port function rate set pci/0000:4b:00.0/2 tx_share 500Mbps