Lines Matching +full:io +full:- +full:reset

1 .\" SPDX-License-Identifier: BSD-2-Clause
3 .\" Copyright (c) 2015-2024 Amazon.com, Inc. or its affiliates.
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58 The driver supports a range of ENA devices, is link-speed independent
62 Some ENA devices support SR-IOV.
63 This driver is used for both the SR-IOV Physical Function (PF) and Virtual
68 is advertised by the device via the Admin Queue), a dedicated MSI-X
77 Receive-side scaling (RSS) is supported for multi-core scaling.
86 Some of the ENA devices support a working mode called Low-latency
100 .Bl -bullet -compact
102 1d0f:0ec2 - ENA PF
104 1d0f:1ec2 - ENA PF with LLQ support
106 1d0f:ec20 - ENA VF
108 1d0f:ec21 - ENA VF with LLQ support
113 driver's behavior can be changed using run-time or boot-time sysctl
115 The boot-time arguments can be set at the
119 The run-time arguments can be set using the
123 Boot-time tunables:
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134 This can further lead to OS instability, together with ENA driver reset and NVMe
143 In some cases, the packet header can be bigger than this (for example -
155 Run-time tunables:
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167 .Bl -bullet -compact
169 0 - ENA_ERR  - Enable driver error messages and ena_com error logs.
171 1 - ENA_WARN - Enable logs for non-critical errors.
173 2 - ENA_INFO - Make the driver more verbose about its actions.
175 3 - ENA_DBG  - Enable debug logs.
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187 Number of the currently allocated and used IO queues.
189 Controls the number of IO queue pairs (Tx/Rx). As this call has to reallocate
190 the queues, it will reset the interface and restart all the queues - this means
196 In that situation, the driver will try to revert the previous number of the IO
198 If this also fails, the device reset will be triggered.
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209 Controls the number of IO descriptors for each Rx queue.
218 If this also fails, the device reset will be triggered.
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231 The drbr is used as a multiple-producer, single-consumer lockless ring for
235 dropped in case of a big Tx burst, which cannot be handled by the IO queue
244 drbr and trigger the device reset.
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285 The default is x:y key-pairs of indir_table_size length.
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328 .Bl -diag
332 .It ena%d: Can not reset device
334 Device could not be reset.
336 Device may not be responding or is already during reset.
359 .Bl -diag
365 .It ena%d: Error, MSI-X is already enabled
367 .It ena%d: Not enough number of MSI-X allocated: %d
368 .It ena%d: Error with MSI-X enablement
388 .It ena%d: Enable MSI-X failed
390 Configuration of the MSI-X for Admin Queue failed.
418 Error occurred during Low-latency Queue mode setup.
429 .Bl -diag
439 Device stopped responding and will be reset.
444 It may be caused by hang of the IO queue.
445 .It ena%d: The number of lost tx completion is above the threshold (%d > %d). Reset the device
447 If too many Tx weren't completed on time the device is going to be reset.
450 .It ena%d: Trigger reset is on
452 Device will be reset.
454 Reset is triggered either by watchdog or if too many TX packets were not
456 .It ena%d: device reset scheduled but trigger_reset is off
458 Reset task has been triggered, but the driver did not request it.
460 Device reset will not be performed.
461 .It ena%d: Device reset failed
463 Error occurred while trying to reset the device.
468 .It ena%d: Enable MSI-X failed
470 .It ena%d: Reset attempt failed. Can not reset the device
472 Error occurred while trying to restore the device after reset.
473 .It ena%d: Device reset completed successfully, Driver info: %s
475 Device has been correctly restored after reset and is ready to use.
479 .It ena%d: Failed to create io TX queue #%d rc: %d
481 .It ena%d: Failed to create io RX queue[%d] rc: %d
498 If happened during initialization of the IO queue, the interface will not be