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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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fd2a981777
Once reset is issued, the driver loses all control queue interfaces. Exercising control queue operations during reset is incorrect and may result in long timeouts. This patch introduces a new field 'reset_ongoing' in the hw structure. This is set to 1 by the core driver when it receives a reset interrupt. ice_sq_send_cmd checks reset_ongoing before actually issuing the control queue operation. If a reset is in progress, it returns a soft error code (ICE_ERR_RESET_PENDING) to the caller. The caller may or may not have to take any action based on this return. Once the driver knows that the reset is done, it has to set reset_ongoing back to 0. This will allow control queue operations to be posted to the hardware again. This "bail out" logic was specifically added to ice_sq_send_cmd (which is pretty low level function) so that we have one solution in one place that applies to all types of control queues. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
34 lines
844 B
C
34 lines
844 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2018, Intel Corporation. */
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#ifndef _ICE_STATUS_H_
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#define _ICE_STATUS_H_
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/* Error Codes */
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enum ice_status {
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ICE_ERR_PARAM = -1,
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ICE_ERR_NOT_IMPL = -2,
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ICE_ERR_NOT_READY = -3,
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ICE_ERR_BAD_PTR = -5,
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ICE_ERR_INVAL_SIZE = -6,
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ICE_ERR_DEVICE_NOT_SUPPORTED = -8,
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ICE_ERR_RESET_FAILED = -9,
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ICE_ERR_FW_API_VER = -10,
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ICE_ERR_NO_MEMORY = -11,
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ICE_ERR_CFG = -12,
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ICE_ERR_OUT_OF_RANGE = -13,
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ICE_ERR_ALREADY_EXISTS = -14,
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ICE_ERR_DOES_NOT_EXIST = -15,
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ICE_ERR_MAX_LIMIT = -17,
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ICE_ERR_RESET_ONGOING = -18,
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ICE_ERR_BUF_TOO_SHORT = -52,
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ICE_ERR_NVM_BLANK_MODE = -53,
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ICE_ERR_AQ_ERROR = -100,
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ICE_ERR_AQ_TIMEOUT = -101,
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ICE_ERR_AQ_FULL = -102,
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ICE_ERR_AQ_NO_WORK = -103,
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ICE_ERR_AQ_EMPTY = -104,
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};
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#endif /* _ICE_STATUS_H_ */
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