9544e6dcf1
The original NVMe API used bit-fields to represent fields in data structures defined by the specification (e.g. the op-code in the command data structure). The implementation targeted x86_64 processors and defined the bit fields for little endian dwords (i.e. 32 bits). This approach does not work as-is for big endian architectures and was changed to use a combination of bit shifts and masks to support PowerPC. Unfortunately, this changed the NVMe API and forces #ifdef's based on the OS revision level in user space code. This change reverts to something that looks like the original API, but it uses bytes instead of bit-fields inside the packed command structure. As a bonus, this works as-is for both big and little endian CPU architectures. Bump __FreeBSD_version to 1200081 due to API change Reviewed by: imp, kbowling, smh, mav Approved by: imp (mentor) Differential Revision: https://reviews.freebsd.org/D16404
1500 lines
43 KiB
C
1500 lines
43 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2012-2013 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef __NVME_H__
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#define __NVME_H__
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#ifdef _KERNEL
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#include <sys/types.h>
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#endif
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#include <sys/param.h>
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#include <sys/endian.h>
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#define NVME_PASSTHROUGH_CMD _IOWR('n', 0, struct nvme_pt_command)
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#define NVME_RESET_CONTROLLER _IO('n', 1)
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#define NVME_IO_TEST _IOWR('n', 100, struct nvme_io_test)
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#define NVME_BIO_TEST _IOWR('n', 101, struct nvme_io_test)
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/*
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* Macros to deal with NVME revisions, as defined VS register
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*/
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#define NVME_REV(x, y) (((x) << 16) | ((y) << 8))
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#define NVME_MAJOR(r) (((r) >> 16) & 0xffff)
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#define NVME_MINOR(r) (((r) >> 8) & 0xff)
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/*
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* Use to mark a command to apply to all namespaces, or to retrieve global
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* log pages.
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*/
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#define NVME_GLOBAL_NAMESPACE_TAG ((uint32_t)0xFFFFFFFF)
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/* Cap nvme to 1MB transfers driver explodes with larger sizes */
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#define NVME_MAX_XFER_SIZE (MAXPHYS < (1<<20) ? MAXPHYS : (1<<20))
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/* Register field definitions */
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#define NVME_CAP_LO_REG_MQES_SHIFT (0)
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#define NVME_CAP_LO_REG_MQES_MASK (0xFFFF)
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#define NVME_CAP_LO_REG_CQR_SHIFT (16)
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#define NVME_CAP_LO_REG_CQR_MASK (0x1)
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#define NVME_CAP_LO_REG_AMS_SHIFT (17)
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#define NVME_CAP_LO_REG_AMS_MASK (0x3)
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#define NVME_CAP_LO_REG_TO_SHIFT (24)
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#define NVME_CAP_LO_REG_TO_MASK (0xFF)
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#define NVME_CAP_HI_REG_DSTRD_SHIFT (0)
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#define NVME_CAP_HI_REG_DSTRD_MASK (0xF)
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#define NVME_CAP_HI_REG_CSS_NVM_SHIFT (5)
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#define NVME_CAP_HI_REG_CSS_NVM_MASK (0x1)
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#define NVME_CAP_HI_REG_MPSMIN_SHIFT (16)
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#define NVME_CAP_HI_REG_MPSMIN_MASK (0xF)
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#define NVME_CAP_HI_REG_MPSMAX_SHIFT (20)
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#define NVME_CAP_HI_REG_MPSMAX_MASK (0xF)
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#define NVME_CC_REG_EN_SHIFT (0)
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#define NVME_CC_REG_EN_MASK (0x1)
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#define NVME_CC_REG_CSS_SHIFT (4)
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#define NVME_CC_REG_CSS_MASK (0x7)
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#define NVME_CC_REG_MPS_SHIFT (7)
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#define NVME_CC_REG_MPS_MASK (0xF)
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#define NVME_CC_REG_AMS_SHIFT (11)
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#define NVME_CC_REG_AMS_MASK (0x7)
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#define NVME_CC_REG_SHN_SHIFT (14)
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#define NVME_CC_REG_SHN_MASK (0x3)
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#define NVME_CC_REG_IOSQES_SHIFT (16)
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#define NVME_CC_REG_IOSQES_MASK (0xF)
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#define NVME_CC_REG_IOCQES_SHIFT (20)
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#define NVME_CC_REG_IOCQES_MASK (0xF)
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#define NVME_CSTS_REG_RDY_SHIFT (0)
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#define NVME_CSTS_REG_RDY_MASK (0x1)
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#define NVME_CSTS_REG_CFS_SHIFT (1)
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#define NVME_CSTS_REG_CFS_MASK (0x1)
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#define NVME_CSTS_REG_SHST_SHIFT (2)
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#define NVME_CSTS_REG_SHST_MASK (0x3)
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#define NVME_CSTS_GET_SHST(csts) (((csts) >> NVME_CSTS_REG_SHST_SHIFT) & NVME_CSTS_REG_SHST_MASK)
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#define NVME_AQA_REG_ASQS_SHIFT (0)
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#define NVME_AQA_REG_ASQS_MASK (0xFFF)
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#define NVME_AQA_REG_ACQS_SHIFT (16)
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#define NVME_AQA_REG_ACQS_MASK (0xFFF)
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/* Command field definitions */
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#define NVME_CMD_FUSE_SHIFT (8)
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#define NVME_CMD_FUSE_MASK (0x3)
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#define NVME_STATUS_P_SHIFT (0)
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#define NVME_STATUS_P_MASK (0x1)
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#define NVME_STATUS_SC_SHIFT (1)
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#define NVME_STATUS_SC_MASK (0xFF)
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#define NVME_STATUS_SCT_SHIFT (9)
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#define NVME_STATUS_SCT_MASK (0x7)
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#define NVME_STATUS_M_SHIFT (14)
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#define NVME_STATUS_M_MASK (0x1)
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#define NVME_STATUS_DNR_SHIFT (15)
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#define NVME_STATUS_DNR_MASK (0x1)
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#define NVME_STATUS_GET_P(st) (((st) >> NVME_STATUS_P_SHIFT) & NVME_STATUS_P_MASK)
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#define NVME_STATUS_GET_SC(st) (((st) >> NVME_STATUS_SC_SHIFT) & NVME_STATUS_SC_MASK)
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#define NVME_STATUS_GET_SCT(st) (((st) >> NVME_STATUS_SCT_SHIFT) & NVME_STATUS_SCT_MASK)
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#define NVME_STATUS_GET_M(st) (((st) >> NVME_STATUS_M_SHIFT) & NVME_STATUS_M_MASK)
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#define NVME_STATUS_GET_DNR(st) (((st) >> NVME_STATUS_DNR_SHIFT) & NVME_STATUS_DNR_MASK)
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#define NVME_PWR_ST_MPS_SHIFT (0)
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#define NVME_PWR_ST_MPS_MASK (0x1)
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#define NVME_PWR_ST_NOPS_SHIFT (1)
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#define NVME_PWR_ST_NOPS_MASK (0x1)
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#define NVME_PWR_ST_RRT_SHIFT (0)
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#define NVME_PWR_ST_RRT_MASK (0x1F)
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#define NVME_PWR_ST_RRL_SHIFT (0)
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#define NVME_PWR_ST_RRL_MASK (0x1F)
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#define NVME_PWR_ST_RWT_SHIFT (0)
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#define NVME_PWR_ST_RWT_MASK (0x1F)
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#define NVME_PWR_ST_RWL_SHIFT (0)
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#define NVME_PWR_ST_RWL_MASK (0x1F)
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#define NVME_PWR_ST_IPS_SHIFT (6)
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#define NVME_PWR_ST_IPS_MASK (0x3)
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#define NVME_PWR_ST_APW_SHIFT (0)
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#define NVME_PWR_ST_APW_MASK (0x7)
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#define NVME_PWR_ST_APS_SHIFT (6)
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#define NVME_PWR_ST_APS_MASK (0x3)
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/** Controller Multi-path I/O and Namespace Sharing Capabilities */
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/* More then one port */
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#define NVME_CTRLR_DATA_MIC_MPORTS_SHIFT (0)
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#define NVME_CTRLR_DATA_MIC_MPORTS_MASK (0x1)
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/* More then one controller */
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#define NVME_CTRLR_DATA_MIC_MCTRLRS_SHIFT (1)
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#define NVME_CTRLR_DATA_MIC_MCTRLRS_MASK (0x1)
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/* SR-IOV Virtual Function */
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#define NVME_CTRLR_DATA_MIC_SRIOVVF_SHIFT (2)
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#define NVME_CTRLR_DATA_MIC_SRIOVVF_MASK (0x1)
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/** OACS - optional admin command support */
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/* supports security send/receive commands */
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#define NVME_CTRLR_DATA_OACS_SECURITY_SHIFT (0)
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#define NVME_CTRLR_DATA_OACS_SECURITY_MASK (0x1)
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/* supports format nvm command */
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#define NVME_CTRLR_DATA_OACS_FORMAT_SHIFT (1)
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#define NVME_CTRLR_DATA_OACS_FORMAT_MASK (0x1)
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/* supports firmware activate/download commands */
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#define NVME_CTRLR_DATA_OACS_FIRMWARE_SHIFT (2)
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#define NVME_CTRLR_DATA_OACS_FIRMWARE_MASK (0x1)
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/* supports namespace management commands */
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#define NVME_CTRLR_DATA_OACS_NSMGMT_SHIFT (3)
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#define NVME_CTRLR_DATA_OACS_NSMGMT_MASK (0x1)
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/* supports Device Self-test command */
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#define NVME_CTRLR_DATA_OACS_SELFTEST_SHIFT (4)
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#define NVME_CTRLR_DATA_OACS_SELFTEST_MASK (0x1)
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/* supports Directives */
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#define NVME_CTRLR_DATA_OACS_DIRECTIVES_SHIFT (5)
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#define NVME_CTRLR_DATA_OACS_DIRECTIVES_MASK (0x1)
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/* supports NVMe-MI Send/Receive */
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#define NVME_CTRLR_DATA_OACS_NVMEMI_SHIFT (6)
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#define NVME_CTRLR_DATA_OACS_NVMEMI_MASK (0x1)
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/* supports Virtualization Management */
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#define NVME_CTRLR_DATA_OACS_VM_SHIFT (7)
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#define NVME_CTRLR_DATA_OACS_VM_MASK (0x1)
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/* supports Doorbell Buffer Config */
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#define NVME_CTRLR_DATA_OACS_DBBUFFER_SHIFT (8)
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#define NVME_CTRLR_DATA_OACS_DBBUFFER_MASK (0x1)
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/** firmware updates */
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/* first slot is read-only */
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#define NVME_CTRLR_DATA_FRMW_SLOT1_RO_SHIFT (0)
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#define NVME_CTRLR_DATA_FRMW_SLOT1_RO_MASK (0x1)
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/* number of firmware slots */
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#define NVME_CTRLR_DATA_FRMW_NUM_SLOTS_SHIFT (1)
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#define NVME_CTRLR_DATA_FRMW_NUM_SLOTS_MASK (0x7)
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/** log page attributes */
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/* per namespace smart/health log page */
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#define NVME_CTRLR_DATA_LPA_NS_SMART_SHIFT (0)
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#define NVME_CTRLR_DATA_LPA_NS_SMART_MASK (0x1)
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/** AVSCC - admin vendor specific command configuration */
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/* admin vendor specific commands use spec format */
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#define NVME_CTRLR_DATA_AVSCC_SPEC_FORMAT_SHIFT (0)
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#define NVME_CTRLR_DATA_AVSCC_SPEC_FORMAT_MASK (0x1)
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/** Autonomous Power State Transition Attributes */
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/* Autonomous Power State Transitions supported */
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#define NVME_CTRLR_DATA_APSTA_APST_SUPP_SHIFT (0)
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#define NVME_CTRLR_DATA_APSTA_APST_SUPP_MASK (0x1)
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/** submission queue entry size */
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#define NVME_CTRLR_DATA_SQES_MIN_SHIFT (0)
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#define NVME_CTRLR_DATA_SQES_MIN_MASK (0xF)
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#define NVME_CTRLR_DATA_SQES_MAX_SHIFT (4)
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#define NVME_CTRLR_DATA_SQES_MAX_MASK (0xF)
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/** completion queue entry size */
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#define NVME_CTRLR_DATA_CQES_MIN_SHIFT (0)
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#define NVME_CTRLR_DATA_CQES_MIN_MASK (0xF)
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#define NVME_CTRLR_DATA_CQES_MAX_SHIFT (4)
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#define NVME_CTRLR_DATA_CQES_MAX_MASK (0xF)
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/** optional nvm command support */
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#define NVME_CTRLR_DATA_ONCS_COMPARE_SHIFT (0)
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#define NVME_CTRLR_DATA_ONCS_COMPARE_MASK (0x1)
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#define NVME_CTRLR_DATA_ONCS_WRITE_UNC_SHIFT (1)
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#define NVME_CTRLR_DATA_ONCS_WRITE_UNC_MASK (0x1)
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#define NVME_CTRLR_DATA_ONCS_DSM_SHIFT (2)
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#define NVME_CTRLR_DATA_ONCS_DSM_MASK (0x1)
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#define NVME_CTRLR_DATA_ONCS_WRZERO_SHIFT (3)
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#define NVME_CTRLR_DATA_ONCS_WRZERO_MASK (0x1)
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#define NVME_CTRLR_DATA_ONCS_SAVEFEAT_SHIFT (4)
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#define NVME_CTRLR_DATA_ONCS_SAVEFEAT_MASK (0x1)
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#define NVME_CTRLR_DATA_ONCS_RESERV_SHIFT (5)
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#define NVME_CTRLR_DATA_ONCS_RESERV_MASK (0x1)
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#define NVME_CTRLR_DATA_ONCS_TIMESTAMP_SHIFT (6)
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#define NVME_CTRLR_DATA_ONCS_TIMESTAMP_MASK (0x1)
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/** Fused Operation Support */
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#define NVME_CTRLR_DATA_FUSES_CNW_SHIFT (0)
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#define NVME_CTRLR_DATA_FUSES_CNW_MASK (0x1)
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/** Format NVM Attributes */
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#define NVME_CTRLR_DATA_FNA_FORMAT_ALL_SHIFT (0)
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#define NVME_CTRLR_DATA_FNA_FORMAT_ALL_MASK (0x1)
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#define NVME_CTRLR_DATA_FNA_ERASE_ALL_SHIFT (1)
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#define NVME_CTRLR_DATA_FNA_ERASE_ALL_MASK (0x1)
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#define NVME_CTRLR_DATA_FNA_CRYPTO_ERASE_SHIFT (2)
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#define NVME_CTRLR_DATA_FNA_CRYPTO_ERASE_MASK (0x1)
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/** volatile write cache */
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#define NVME_CTRLR_DATA_VWC_PRESENT_SHIFT (0)
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#define NVME_CTRLR_DATA_VWC_PRESENT_MASK (0x1)
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/** namespace features */
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/* thin provisioning */
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#define NVME_NS_DATA_NSFEAT_THIN_PROV_SHIFT (0)
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#define NVME_NS_DATA_NSFEAT_THIN_PROV_MASK (0x1)
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/* NAWUN, NAWUPF, and NACWU fields are valid */
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#define NVME_NS_DATA_NSFEAT_NA_FIELDS_SHIFT (1)
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#define NVME_NS_DATA_NSFEAT_NA_FIELDS_MASK (0x1)
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/* Deallocated or Unwritten Logical Block errors supported */
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#define NVME_NS_DATA_NSFEAT_DEALLOC_SHIFT (2)
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#define NVME_NS_DATA_NSFEAT_DEALLOC_MASK (0x1)
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/* NGUID and EUI64 fields are not reusable */
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#define NVME_NS_DATA_NSFEAT_NO_ID_REUSE_SHIFT (3)
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#define NVME_NS_DATA_NSFEAT_NO_ID_REUSE_MASK (0x1)
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/** formatted lba size */
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#define NVME_NS_DATA_FLBAS_FORMAT_SHIFT (0)
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#define NVME_NS_DATA_FLBAS_FORMAT_MASK (0xF)
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#define NVME_NS_DATA_FLBAS_EXTENDED_SHIFT (4)
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#define NVME_NS_DATA_FLBAS_EXTENDED_MASK (0x1)
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/** metadata capabilities */
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/* metadata can be transferred as part of data prp list */
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#define NVME_NS_DATA_MC_EXTENDED_SHIFT (0)
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#define NVME_NS_DATA_MC_EXTENDED_MASK (0x1)
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/* metadata can be transferred with separate metadata pointer */
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#define NVME_NS_DATA_MC_POINTER_SHIFT (1)
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#define NVME_NS_DATA_MC_POINTER_MASK (0x1)
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/** end-to-end data protection capabilities */
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/* protection information type 1 */
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#define NVME_NS_DATA_DPC_PIT1_SHIFT (0)
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#define NVME_NS_DATA_DPC_PIT1_MASK (0x1)
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/* protection information type 2 */
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#define NVME_NS_DATA_DPC_PIT2_SHIFT (1)
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#define NVME_NS_DATA_DPC_PIT2_MASK (0x1)
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/* protection information type 3 */
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#define NVME_NS_DATA_DPC_PIT3_SHIFT (2)
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#define NVME_NS_DATA_DPC_PIT3_MASK (0x1)
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/* first eight bytes of metadata */
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#define NVME_NS_DATA_DPC_MD_START_SHIFT (3)
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#define NVME_NS_DATA_DPC_MD_START_MASK (0x1)
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/* last eight bytes of metadata */
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#define NVME_NS_DATA_DPC_MD_END_SHIFT (4)
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#define NVME_NS_DATA_DPC_MD_END_MASK (0x1)
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/** end-to-end data protection type settings */
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/* protection information type */
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#define NVME_NS_DATA_DPS_PIT_SHIFT (0)
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#define NVME_NS_DATA_DPS_PIT_MASK (0x7)
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/* 1 == protection info transferred at start of metadata */
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/* 0 == protection info transferred at end of metadata */
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#define NVME_NS_DATA_DPS_MD_START_SHIFT (3)
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#define NVME_NS_DATA_DPS_MD_START_MASK (0x1)
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/** Namespace Multi-path I/O and Namespace Sharing Capabilities */
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/* the namespace may be attached to two or more controllers */
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#define NVME_NS_DATA_NMIC_MAY_BE_SHARED_SHIFT (0)
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#define NVME_NS_DATA_NMIC_MAY_BE_SHARED_MASK (0x1)
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/** Reservation Capabilities */
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/* Persist Through Power Loss */
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#define NVME_NS_DATA_RESCAP_PTPL_SHIFT (0)
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#define NVME_NS_DATA_RESCAP_PTPL_MASK (0x1)
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/* supports the Write Exclusive */
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#define NVME_NS_DATA_RESCAP_WR_EX_SHIFT (1)
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#define NVME_NS_DATA_RESCAP_WR_EX_MASK (0x1)
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/* supports the Exclusive Access */
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#define NVME_NS_DATA_RESCAP_EX_AC_SHIFT (2)
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#define NVME_NS_DATA_RESCAP_EX_AC_MASK (0x1)
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/* supports the Write Exclusive – Registrants Only */
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#define NVME_NS_DATA_RESCAP_WR_EX_RO_SHIFT (3)
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#define NVME_NS_DATA_RESCAP_WR_EX_RO_MASK (0x1)
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/* supports the Exclusive Access - Registrants Only */
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#define NVME_NS_DATA_RESCAP_EX_AC_RO_SHIFT (4)
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#define NVME_NS_DATA_RESCAP_EX_AC_RO_MASK (0x1)
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/* supports the Write Exclusive – All Registrants */
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#define NVME_NS_DATA_RESCAP_WR_EX_AR_SHIFT (5)
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#define NVME_NS_DATA_RESCAP_WR_EX_AR_MASK (0x1)
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/* supports the Exclusive Access - All Registrants */
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#define NVME_NS_DATA_RESCAP_EX_AC_AR_SHIFT (6)
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#define NVME_NS_DATA_RESCAP_EX_AC_AR_MASK (0x1)
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/* Ignore Existing Key is used as defined in revision 1.3 or later */
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#define NVME_NS_DATA_RESCAP_IEKEY13_SHIFT (7)
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#define NVME_NS_DATA_RESCAP_IEKEY13_MASK (0x1)
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/** Format Progress Indicator */
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/* percentage of the Format NVM command that remains to be completed */
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#define NVME_NS_DATA_FPI_PERC_SHIFT (0)
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#define NVME_NS_DATA_FPI_PERC_MASK (0x7f)
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/* namespace supports the Format Progress Indicator */
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#define NVME_NS_DATA_FPI_SUPP_SHIFT (7)
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#define NVME_NS_DATA_FPI_SUPP_MASK (0x1)
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/** lba format support */
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/* metadata size */
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#define NVME_NS_DATA_LBAF_MS_SHIFT (0)
|
||
#define NVME_NS_DATA_LBAF_MS_MASK (0xFFFF)
|
||
/* lba data size */
|
||
#define NVME_NS_DATA_LBAF_LBADS_SHIFT (16)
|
||
#define NVME_NS_DATA_LBAF_LBADS_MASK (0xFF)
|
||
/* relative performance */
|
||
#define NVME_NS_DATA_LBAF_RP_SHIFT (24)
|
||
#define NVME_NS_DATA_LBAF_RP_MASK (0x3)
|
||
|
||
enum nvme_critical_warning_state {
|
||
NVME_CRIT_WARN_ST_AVAILABLE_SPARE = 0x1,
|
||
NVME_CRIT_WARN_ST_TEMPERATURE = 0x2,
|
||
NVME_CRIT_WARN_ST_DEVICE_RELIABILITY = 0x4,
|
||
NVME_CRIT_WARN_ST_READ_ONLY = 0x8,
|
||
NVME_CRIT_WARN_ST_VOLATILE_MEMORY_BACKUP = 0x10,
|
||
};
|
||
#define NVME_CRIT_WARN_ST_RESERVED_MASK (0xE0)
|
||
|
||
/* slot for current FW */
|
||
#define NVME_FIRMWARE_PAGE_AFI_SLOT_SHIFT (0)
|
||
#define NVME_FIRMWARE_PAGE_AFI_SLOT_MASK (0x7)
|
||
|
||
/* CC register SHN field values */
|
||
enum shn_value {
|
||
NVME_SHN_NORMAL = 0x1,
|
||
NVME_SHN_ABRUPT = 0x2,
|
||
};
|
||
|
||
/* CSTS register SHST field values */
|
||
enum shst_value {
|
||
NVME_SHST_NORMAL = 0x0,
|
||
NVME_SHST_OCCURRING = 0x1,
|
||
NVME_SHST_COMPLETE = 0x2,
|
||
};
|
||
|
||
struct nvme_registers
|
||
{
|
||
/** controller capabilities */
|
||
uint32_t cap_lo;
|
||
uint32_t cap_hi;
|
||
|
||
uint32_t vs; /* version */
|
||
uint32_t intms; /* interrupt mask set */
|
||
uint32_t intmc; /* interrupt mask clear */
|
||
|
||
/** controller configuration */
|
||
uint32_t cc;
|
||
|
||
uint32_t reserved1;
|
||
|
||
/** controller status */
|
||
uint32_t csts;
|
||
|
||
uint32_t reserved2;
|
||
|
||
/** admin queue attributes */
|
||
uint32_t aqa;
|
||
|
||
uint64_t asq; /* admin submission queue base addr */
|
||
uint64_t acq; /* admin completion queue base addr */
|
||
uint32_t reserved3[0x3f2];
|
||
|
||
struct {
|
||
uint32_t sq_tdbl; /* submission queue tail doorbell */
|
||
uint32_t cq_hdbl; /* completion queue head doorbell */
|
||
} doorbell[1] __packed;
|
||
} __packed;
|
||
|
||
_Static_assert(sizeof(struct nvme_registers) == 0x1008, "bad size for nvme_registers");
|
||
|
||
struct nvme_command
|
||
{
|
||
/* dword 0 */
|
||
uint8_t opc; /* opcode */
|
||
uint8_t fuse; /* fused operation */
|
||
uint16_t cid; /* command identifier */
|
||
|
||
/* dword 1 */
|
||
uint32_t nsid; /* namespace identifier */
|
||
|
||
/* dword 2-3 */
|
||
uint32_t rsvd2;
|
||
uint32_t rsvd3;
|
||
|
||
/* dword 4-5 */
|
||
uint64_t mptr; /* metadata pointer */
|
||
|
||
/* dword 6-7 */
|
||
uint64_t prp1; /* prp entry 1 */
|
||
|
||
/* dword 8-9 */
|
||
uint64_t prp2; /* prp entry 2 */
|
||
|
||
/* dword 10-15 */
|
||
uint32_t cdw10; /* command-specific */
|
||
uint32_t cdw11; /* command-specific */
|
||
uint32_t cdw12; /* command-specific */
|
||
uint32_t cdw13; /* command-specific */
|
||
uint32_t cdw14; /* command-specific */
|
||
uint32_t cdw15; /* command-specific */
|
||
} __packed;
|
||
|
||
_Static_assert(sizeof(struct nvme_command) == 16 * 4, "bad size for nvme_command");
|
||
|
||
struct nvme_completion {
|
||
|
||
/* dword 0 */
|
||
uint32_t cdw0; /* command-specific */
|
||
|
||
/* dword 1 */
|
||
uint32_t rsvd1;
|
||
|
||
/* dword 2 */
|
||
uint16_t sqhd; /* submission queue head pointer */
|
||
uint16_t sqid; /* submission queue identifier */
|
||
|
||
/* dword 3 */
|
||
uint16_t cid; /* command identifier */
|
||
uint16_t status;
|
||
} __packed;
|
||
|
||
_Static_assert(sizeof(struct nvme_completion) == 4 * 4, "bad size for nvme_completion");
|
||
|
||
struct nvme_dsm_range {
|
||
uint32_t attributes;
|
||
uint32_t length;
|
||
uint64_t starting_lba;
|
||
} __packed;
|
||
|
||
/* Largest DSM Trim that can be done */
|
||
#define NVME_MAX_DSM_TRIM 4096
|
||
|
||
_Static_assert(sizeof(struct nvme_dsm_range) == 16, "bad size for nvme_dsm_ranage");
|
||
|
||
/* status code types */
|
||
enum nvme_status_code_type {
|
||
NVME_SCT_GENERIC = 0x0,
|
||
NVME_SCT_COMMAND_SPECIFIC = 0x1,
|
||
NVME_SCT_MEDIA_ERROR = 0x2,
|
||
/* 0x3-0x6 - reserved */
|
||
NVME_SCT_VENDOR_SPECIFIC = 0x7,
|
||
};
|
||
|
||
/* generic command status codes */
|
||
enum nvme_generic_command_status_code {
|
||
NVME_SC_SUCCESS = 0x00,
|
||
NVME_SC_INVALID_OPCODE = 0x01,
|
||
NVME_SC_INVALID_FIELD = 0x02,
|
||
NVME_SC_COMMAND_ID_CONFLICT = 0x03,
|
||
NVME_SC_DATA_TRANSFER_ERROR = 0x04,
|
||
NVME_SC_ABORTED_POWER_LOSS = 0x05,
|
||
NVME_SC_INTERNAL_DEVICE_ERROR = 0x06,
|
||
NVME_SC_ABORTED_BY_REQUEST = 0x07,
|
||
NVME_SC_ABORTED_SQ_DELETION = 0x08,
|
||
NVME_SC_ABORTED_FAILED_FUSED = 0x09,
|
||
NVME_SC_ABORTED_MISSING_FUSED = 0x0a,
|
||
NVME_SC_INVALID_NAMESPACE_OR_FORMAT = 0x0b,
|
||
NVME_SC_COMMAND_SEQUENCE_ERROR = 0x0c,
|
||
NVME_SC_INVALID_SGL_SEGMENT_DESCR = 0x0d,
|
||
NVME_SC_INVALID_NUMBER_OF_SGL_DESCR = 0x0e,
|
||
NVME_SC_DATA_SGL_LENGTH_INVALID = 0x0f,
|
||
NVME_SC_METADATA_SGL_LENGTH_INVALID = 0x10,
|
||
NVME_SC_SGL_DESCRIPTOR_TYPE_INVALID = 0x11,
|
||
NVME_SC_INVALID_USE_OF_CMB = 0x12,
|
||
NVME_SC_PRP_OFFET_INVALID = 0x13,
|
||
NVME_SC_ATOMIC_WRITE_UNIT_EXCEEDED = 0x14,
|
||
NVME_SC_OPERATION_DENIED = 0x15,
|
||
NVME_SC_SGL_OFFSET_INVALID = 0x16,
|
||
/* 0x17 - reserved */
|
||
NVME_SC_HOST_ID_INCONSISTENT_FORMAT = 0x18,
|
||
NVME_SC_KEEP_ALIVE_TIMEOUT_EXPIRED = 0x19,
|
||
NVME_SC_KEEP_ALIVE_TIMEOUT_INVALID = 0x1a,
|
||
NVME_SC_ABORTED_DUE_TO_PREEMPT = 0x1b,
|
||
NVME_SC_SANITIZE_FAILED = 0x1c,
|
||
NVME_SC_SANITIZE_IN_PROGRESS = 0x1d,
|
||
NVME_SC_SGL_DATA_BLOCK_GRAN_INVALID = 0x1e,
|
||
NVME_SC_NOT_SUPPORTED_IN_CMB = 0x1f,
|
||
|
||
NVME_SC_LBA_OUT_OF_RANGE = 0x80,
|
||
NVME_SC_CAPACITY_EXCEEDED = 0x81,
|
||
NVME_SC_NAMESPACE_NOT_READY = 0x82,
|
||
NVME_SC_RESERVATION_CONFLICT = 0x83,
|
||
NVME_SC_FORMAT_IN_PROGRESS = 0x84,
|
||
};
|
||
|
||
/* command specific status codes */
|
||
enum nvme_command_specific_status_code {
|
||
NVME_SC_COMPLETION_QUEUE_INVALID = 0x00,
|
||
NVME_SC_INVALID_QUEUE_IDENTIFIER = 0x01,
|
||
NVME_SC_MAXIMUM_QUEUE_SIZE_EXCEEDED = 0x02,
|
||
NVME_SC_ABORT_COMMAND_LIMIT_EXCEEDED = 0x03,
|
||
/* 0x04 - reserved */
|
||
NVME_SC_ASYNC_EVENT_REQUEST_LIMIT_EXCEEDED = 0x05,
|
||
NVME_SC_INVALID_FIRMWARE_SLOT = 0x06,
|
||
NVME_SC_INVALID_FIRMWARE_IMAGE = 0x07,
|
||
NVME_SC_INVALID_INTERRUPT_VECTOR = 0x08,
|
||
NVME_SC_INVALID_LOG_PAGE = 0x09,
|
||
NVME_SC_INVALID_FORMAT = 0x0a,
|
||
NVME_SC_FIRMWARE_REQUIRES_RESET = 0x0b,
|
||
NVME_SC_INVALID_QUEUE_DELETION = 0x0c,
|
||
NVME_SC_FEATURE_NOT_SAVEABLE = 0x0d,
|
||
NVME_SC_FEATURE_NOT_CHANGEABLE = 0x0e,
|
||
NVME_SC_FEATURE_NOT_NS_SPECIFIC = 0x0f,
|
||
NVME_SC_FW_ACT_REQUIRES_NVMS_RESET = 0x10,
|
||
NVME_SC_FW_ACT_REQUIRES_RESET = 0x11,
|
||
NVME_SC_FW_ACT_REQUIRES_TIME = 0x12,
|
||
NVME_SC_FW_ACT_PROHIBITED = 0x13,
|
||
NVME_SC_OVERLAPPING_RANGE = 0x14,
|
||
NVME_SC_NS_INSUFFICIENT_CAPACITY = 0x15,
|
||
NVME_SC_NS_ID_UNAVAILABLE = 0x16,
|
||
/* 0x17 - reserved */
|
||
NVME_SC_NS_ALREADY_ATTACHED = 0x18,
|
||
NVME_SC_NS_IS_PRIVATE = 0x19,
|
||
NVME_SC_NS_NOT_ATTACHED = 0x1a,
|
||
NVME_SC_THIN_PROV_NOT_SUPPORTED = 0x1b,
|
||
NVME_SC_CTRLR_LIST_INVALID = 0x1c,
|
||
NVME_SC_SELT_TEST_IN_PROGRESS = 0x1d,
|
||
NVME_SC_BOOT_PART_WRITE_PROHIB = 0x1e,
|
||
NVME_SC_INVALID_CTRLR_ID = 0x1f,
|
||
NVME_SC_INVALID_SEC_CTRLR_STATE = 0x20,
|
||
NVME_SC_INVALID_NUM_OF_CTRLR_RESRC = 0x21,
|
||
NVME_SC_INVALID_RESOURCE_ID = 0x22,
|
||
|
||
NVME_SC_CONFLICTING_ATTRIBUTES = 0x80,
|
||
NVME_SC_INVALID_PROTECTION_INFO = 0x81,
|
||
NVME_SC_ATTEMPTED_WRITE_TO_RO_PAGE = 0x82,
|
||
};
|
||
|
||
/* media error status codes */
|
||
enum nvme_media_error_status_code {
|
||
NVME_SC_WRITE_FAULTS = 0x80,
|
||
NVME_SC_UNRECOVERED_READ_ERROR = 0x81,
|
||
NVME_SC_GUARD_CHECK_ERROR = 0x82,
|
||
NVME_SC_APPLICATION_TAG_CHECK_ERROR = 0x83,
|
||
NVME_SC_REFERENCE_TAG_CHECK_ERROR = 0x84,
|
||
NVME_SC_COMPARE_FAILURE = 0x85,
|
||
NVME_SC_ACCESS_DENIED = 0x86,
|
||
NVME_SC_DEALLOCATED_OR_UNWRITTEN = 0x87,
|
||
};
|
||
|
||
/* admin opcodes */
|
||
enum nvme_admin_opcode {
|
||
NVME_OPC_DELETE_IO_SQ = 0x00,
|
||
NVME_OPC_CREATE_IO_SQ = 0x01,
|
||
NVME_OPC_GET_LOG_PAGE = 0x02,
|
||
/* 0x03 - reserved */
|
||
NVME_OPC_DELETE_IO_CQ = 0x04,
|
||
NVME_OPC_CREATE_IO_CQ = 0x05,
|
||
NVME_OPC_IDENTIFY = 0x06,
|
||
/* 0x07 - reserved */
|
||
NVME_OPC_ABORT = 0x08,
|
||
NVME_OPC_SET_FEATURES = 0x09,
|
||
NVME_OPC_GET_FEATURES = 0x0a,
|
||
/* 0x0b - reserved */
|
||
NVME_OPC_ASYNC_EVENT_REQUEST = 0x0c,
|
||
NVME_OPC_NAMESPACE_MANAGEMENT = 0x0d,
|
||
/* 0x0e-0x0f - reserved */
|
||
NVME_OPC_FIRMWARE_ACTIVATE = 0x10,
|
||
NVME_OPC_FIRMWARE_IMAGE_DOWNLOAD = 0x11,
|
||
NVME_OPC_DEVICE_SELF_TEST = 0x14,
|
||
NVME_OPC_NAMESPACE_ATTACHMENT = 0x15,
|
||
NVME_OPC_KEEP_ALIVE = 0x18,
|
||
NVME_OPC_DIRECTIVE_SEND = 0x19,
|
||
NVME_OPC_DIRECTIVE_RECEIVE = 0x1a,
|
||
NVME_OPC_VIRTUALIZATION_MANAGEMENT = 0x1c,
|
||
NVME_OPC_NVME_MI_SEND = 0x1d,
|
||
NVME_OPC_NVME_MI_RECEIVE = 0x1e,
|
||
NVME_OPC_DOORBELL_BUFFER_CONFIG = 0x7c,
|
||
|
||
NVME_OPC_FORMAT_NVM = 0x80,
|
||
NVME_OPC_SECURITY_SEND = 0x81,
|
||
NVME_OPC_SECURITY_RECEIVE = 0x82,
|
||
NVME_OPC_SANITIZE = 0x84,
|
||
};
|
||
|
||
/* nvme nvm opcodes */
|
||
enum nvme_nvm_opcode {
|
||
NVME_OPC_FLUSH = 0x00,
|
||
NVME_OPC_WRITE = 0x01,
|
||
NVME_OPC_READ = 0x02,
|
||
/* 0x03 - reserved */
|
||
NVME_OPC_WRITE_UNCORRECTABLE = 0x04,
|
||
NVME_OPC_COMPARE = 0x05,
|
||
/* 0x06 - reserved */
|
||
NVME_OPC_WRITE_ZEROES = 0x08,
|
||
/* 0x07 - reserved */
|
||
NVME_OPC_DATASET_MANAGEMENT = 0x09,
|
||
/* 0x0a-0x0c - reserved */
|
||
NVME_OPC_RESERVATION_REGISTER = 0x0d,
|
||
NVME_OPC_RESERVATION_REPORT = 0x0e,
|
||
/* 0x0f-0x10 - reserved */
|
||
NVME_OPC_RESERVATION_ACQUIRE = 0x11,
|
||
/* 0x12-0x14 - reserved */
|
||
NVME_OPC_RESERVATION_RELEASE = 0x15,
|
||
};
|
||
|
||
enum nvme_feature {
|
||
/* 0x00 - reserved */
|
||
NVME_FEAT_ARBITRATION = 0x01,
|
||
NVME_FEAT_POWER_MANAGEMENT = 0x02,
|
||
NVME_FEAT_LBA_RANGE_TYPE = 0x03,
|
||
NVME_FEAT_TEMPERATURE_THRESHOLD = 0x04,
|
||
NVME_FEAT_ERROR_RECOVERY = 0x05,
|
||
NVME_FEAT_VOLATILE_WRITE_CACHE = 0x06,
|
||
NVME_FEAT_NUMBER_OF_QUEUES = 0x07,
|
||
NVME_FEAT_INTERRUPT_COALESCING = 0x08,
|
||
NVME_FEAT_INTERRUPT_VECTOR_CONFIGURATION = 0x09,
|
||
NVME_FEAT_WRITE_ATOMICITY = 0x0A,
|
||
NVME_FEAT_ASYNC_EVENT_CONFIGURATION = 0x0B,
|
||
NVME_FEAT_AUTONOMOUS_POWER_STATE_TRANSITION = 0x0C,
|
||
NVME_FEAT_HOST_MEMORY_BUFFER = 0x0D,
|
||
NVME_FEAT_TIMESTAMP = 0x0E,
|
||
NVME_FEAT_KEEP_ALIVE_TIMER = 0x0F,
|
||
NVME_FEAT_HOST_CONTROLLED_THERMAL_MGMT = 0x10,
|
||
NVME_FEAT_NON_OP_POWER_STATE_CONFIG = 0x11,
|
||
/* 0x12-0x77 - reserved */
|
||
/* 0x78-0x7f - NVMe Management Interface */
|
||
NVME_FEAT_SOFTWARE_PROGRESS_MARKER = 0x80,
|
||
/* 0x81-0xBF - command set specific (reserved) */
|
||
/* 0xC0-0xFF - vendor specific */
|
||
};
|
||
|
||
enum nvme_dsm_attribute {
|
||
NVME_DSM_ATTR_INTEGRAL_READ = 0x1,
|
||
NVME_DSM_ATTR_INTEGRAL_WRITE = 0x2,
|
||
NVME_DSM_ATTR_DEALLOCATE = 0x4,
|
||
};
|
||
|
||
enum nvme_activate_action {
|
||
NVME_AA_REPLACE_NO_ACTIVATE = 0x0,
|
||
NVME_AA_REPLACE_ACTIVATE = 0x1,
|
||
NVME_AA_ACTIVATE = 0x2,
|
||
};
|
||
|
||
struct nvme_power_state {
|
||
/** Maximum Power */
|
||
uint16_t mp; /* Maximum Power */
|
||
uint8_t ps_rsvd1;
|
||
uint8_t mps_nops; /* Max Power Scale, Non-Operational State */
|
||
|
||
uint32_t enlat; /* Entry Latency */
|
||
uint32_t exlat; /* Exit Latency */
|
||
|
||
uint8_t rrt; /* Relative Read Throughput */
|
||
uint8_t rrl; /* Relative Read Latency */
|
||
uint8_t rwt; /* Relative Write Throughput */
|
||
uint8_t rwl; /* Relative Write Latency */
|
||
|
||
uint16_t idlp; /* Idle Power */
|
||
uint8_t ips; /* Idle Power Scale */
|
||
uint8_t ps_rsvd8;
|
||
|
||
uint16_t actp; /* Active Power */
|
||
uint8_t apw_aps; /* Active Power Workload, Active Power Scale */
|
||
uint8_t ps_rsvd10[9];
|
||
} __packed;
|
||
|
||
_Static_assert(sizeof(struct nvme_power_state) == 32, "bad size for nvme_power_state");
|
||
|
||
#define NVME_SERIAL_NUMBER_LENGTH 20
|
||
#define NVME_MODEL_NUMBER_LENGTH 40
|
||
#define NVME_FIRMWARE_REVISION_LENGTH 8
|
||
|
||
struct nvme_controller_data {
|
||
|
||
/* bytes 0-255: controller capabilities and features */
|
||
|
||
/** pci vendor id */
|
||
uint16_t vid;
|
||
|
||
/** pci subsystem vendor id */
|
||
uint16_t ssvid;
|
||
|
||
/** serial number */
|
||
uint8_t sn[NVME_SERIAL_NUMBER_LENGTH];
|
||
|
||
/** model number */
|
||
uint8_t mn[NVME_MODEL_NUMBER_LENGTH];
|
||
|
||
/** firmware revision */
|
||
uint8_t fr[NVME_FIRMWARE_REVISION_LENGTH];
|
||
|
||
/** recommended arbitration burst */
|
||
uint8_t rab;
|
||
|
||
/** ieee oui identifier */
|
||
uint8_t ieee[3];
|
||
|
||
/** multi-interface capabilities */
|
||
uint8_t mic;
|
||
|
||
/** maximum data transfer size */
|
||
uint8_t mdts;
|
||
|
||
/** Controller ID */
|
||
uint16_t ctrlr_id;
|
||
|
||
/** Version */
|
||
uint32_t ver;
|
||
|
||
/** RTD3 Resume Latency */
|
||
uint32_t rtd3r;
|
||
|
||
/** RTD3 Enter Latency */
|
||
uint32_t rtd3e;
|
||
|
||
/** Optional Asynchronous Events Supported */
|
||
uint32_t oaes; /* bitfield really */
|
||
|
||
/** Controller Attributes */
|
||
uint32_t ctratt; /* bitfield really */
|
||
|
||
uint8_t reserved1[12];
|
||
|
||
/** FRU Globally Unique Identifier */
|
||
uint8_t fguid[16];
|
||
|
||
uint8_t reserved2[128];
|
||
|
||
/* bytes 256-511: admin command set attributes */
|
||
|
||
/** optional admin command support */
|
||
uint16_t oacs;
|
||
|
||
/** abort command limit */
|
||
uint8_t acl;
|
||
|
||
/** asynchronous event request limit */
|
||
uint8_t aerl;
|
||
|
||
/** firmware updates */
|
||
uint8_t frmw;
|
||
|
||
/** log page attributes */
|
||
uint8_t lpa;
|
||
|
||
/** error log page entries */
|
||
uint8_t elpe;
|
||
|
||
/** number of power states supported */
|
||
uint8_t npss;
|
||
|
||
/** admin vendor specific command configuration */
|
||
uint8_t avscc;
|
||
|
||
/** Autonomous Power State Transition Attributes */
|
||
uint8_t apsta;
|
||
|
||
/** Warning Composite Temperature Threshold */
|
||
uint16_t wctemp;
|
||
|
||
/** Critical Composite Temperature Threshold */
|
||
uint16_t cctemp;
|
||
|
||
/** Maximum Time for Firmware Activation */
|
||
uint16_t mtfa;
|
||
|
||
/** Host Memory Buffer Preferred Size */
|
||
uint32_t hmpre;
|
||
|
||
/** Host Memory Buffer Minimum Size */
|
||
uint32_t hmmin;
|
||
|
||
/** Name space capabilities */
|
||
struct {
|
||
/* if nsmgmt, report tnvmcap and unvmcap */
|
||
uint8_t tnvmcap[16];
|
||
uint8_t unvmcap[16];
|
||
} __packed untncap;
|
||
|
||
/** Replay Protected Memory Block Support */
|
||
uint32_t rpmbs; /* Really a bitfield */
|
||
|
||
/** Extended Device Self-test Time */
|
||
uint16_t edstt;
|
||
|
||
/** Device Self-test Options */
|
||
uint8_t dsto; /* Really a bitfield */
|
||
|
||
/** Firmware Update Granularity */
|
||
uint8_t fwug;
|
||
|
||
/** Keep Alive Support */
|
||
uint16_t kas;
|
||
|
||
/** Host Controlled Thermal Management Attributes */
|
||
uint16_t hctma; /* Really a bitfield */
|
||
|
||
/** Minimum Thermal Management Temperature */
|
||
uint16_t mntmt;
|
||
|
||
/** Maximum Thermal Management Temperature */
|
||
uint16_t mxtmt;
|
||
|
||
/** Sanitize Capabilities */
|
||
uint32_t sanicap; /* Really a bitfield */
|
||
|
||
uint8_t reserved3[180];
|
||
/* bytes 512-703: nvm command set attributes */
|
||
|
||
/** submission queue entry size */
|
||
uint8_t sqes;
|
||
|
||
/** completion queue entry size */
|
||
uint8_t cqes;
|
||
|
||
/** Maximum Outstanding Commands */
|
||
uint16_t maxcmd;
|
||
|
||
/** number of namespaces */
|
||
uint32_t nn;
|
||
|
||
/** optional nvm command support */
|
||
uint16_t oncs;
|
||
|
||
/** fused operation support */
|
||
uint16_t fuses;
|
||
|
||
/** format nvm attributes */
|
||
uint8_t fna;
|
||
|
||
/** volatile write cache */
|
||
uint8_t vwc;
|
||
|
||
/** Atomic Write Unit Normal */
|
||
uint16_t awun;
|
||
|
||
/** Atomic Write Unit Power Fail */
|
||
uint16_t awupf;
|
||
|
||
/** NVM Vendor Specific Command Configuration */
|
||
uint8_t nvscc;
|
||
uint8_t reserved5;
|
||
|
||
/** Atomic Compare & Write Unit */
|
||
uint16_t acwu;
|
||
uint16_t reserved6;
|
||
|
||
/** SGL Support */
|
||
uint32_t sgls;
|
||
|
||
/* bytes 540-767: Reserved */
|
||
uint8_t reserved7[228];
|
||
|
||
/** NVM Subsystem NVMe Qualified Name */
|
||
uint8_t subnqn[256];
|
||
|
||
/* bytes 1024-1791: Reserved */
|
||
uint8_t reserved8[768];
|
||
|
||
/* bytes 1792-2047: NVMe over Fabrics specification */
|
||
uint8_t reserved9[256];
|
||
|
||
/* bytes 2048-3071: power state descriptors */
|
||
struct nvme_power_state power_state[32];
|
||
|
||
/* bytes 3072-4095: vendor specific */
|
||
uint8_t vs[1024];
|
||
} __packed __aligned(4);
|
||
|
||
_Static_assert(sizeof(struct nvme_controller_data) == 4096, "bad size for nvme_controller_data");
|
||
|
||
struct nvme_namespace_data {
|
||
|
||
/** namespace size */
|
||
uint64_t nsze;
|
||
|
||
/** namespace capacity */
|
||
uint64_t ncap;
|
||
|
||
/** namespace utilization */
|
||
uint64_t nuse;
|
||
|
||
/** namespace features */
|
||
uint8_t nsfeat;
|
||
|
||
/** number of lba formats */
|
||
uint8_t nlbaf;
|
||
|
||
/** formatted lba size */
|
||
uint8_t flbas;
|
||
|
||
/** metadata capabilities */
|
||
uint8_t mc;
|
||
|
||
/** end-to-end data protection capabilities */
|
||
uint8_t dpc;
|
||
|
||
/** end-to-end data protection type settings */
|
||
uint8_t dps;
|
||
|
||
/** Namespace Multi-path I/O and Namespace Sharing Capabilities */
|
||
uint8_t nmic;
|
||
|
||
/** Reservation Capabilities */
|
||
uint8_t rescap;
|
||
|
||
/** Format Progress Indicator */
|
||
uint8_t fpi;
|
||
|
||
/** Deallocate Logical Block Features */
|
||
uint8_t dlfeat;
|
||
|
||
/** Namespace Atomic Write Unit Normal */
|
||
uint16_t nawun;
|
||
|
||
/** Namespace Atomic Write Unit Power Fail */
|
||
uint16_t nawupf;
|
||
|
||
/** Namespace Atomic Compare & Write Unit */
|
||
uint16_t nacwu;
|
||
|
||
/** Namespace Atomic Boundary Size Normal */
|
||
uint16_t nabsn;
|
||
|
||
/** Namespace Atomic Boundary Offset */
|
||
uint16_t nabo;
|
||
|
||
/** Namespace Atomic Boundary Size Power Fail */
|
||
uint16_t nabspf;
|
||
|
||
/** Namespace Optimal IO Boundary */
|
||
uint16_t noiob;
|
||
|
||
/** NVM Capacity */
|
||
uint8_t nvmcap[16];
|
||
|
||
/* bytes 64-103: Reserved */
|
||
uint8_t reserved5[40];
|
||
|
||
/** Namespace Globally Unique Identifier */
|
||
uint8_t nguid[16];
|
||
|
||
/** IEEE Extended Unique Identifier */
|
||
uint8_t eui64[8];
|
||
|
||
/** lba format support */
|
||
uint32_t lbaf[16];
|
||
|
||
uint8_t reserved6[192];
|
||
|
||
uint8_t vendor_specific[3712];
|
||
} __packed __aligned(4);
|
||
|
||
_Static_assert(sizeof(struct nvme_namespace_data) == 4096, "bad size for nvme_namepsace_data");
|
||
|
||
enum nvme_log_page {
|
||
|
||
/* 0x00 - reserved */
|
||
NVME_LOG_ERROR = 0x01,
|
||
NVME_LOG_HEALTH_INFORMATION = 0x02,
|
||
NVME_LOG_FIRMWARE_SLOT = 0x03,
|
||
NVME_LOG_CHANGED_NAMESPACE = 0x04,
|
||
NVME_LOG_COMMAND_EFFECT = 0x05,
|
||
/* 0x06-0x7F - reserved */
|
||
/* 0x80-0xBF - I/O command set specific */
|
||
NVME_LOG_RES_NOTIFICATION = 0x80,
|
||
/* 0xC0-0xFF - vendor specific */
|
||
|
||
/*
|
||
* The following are Intel Specific log pages, but they seem
|
||
* to be widely implemented.
|
||
*/
|
||
INTEL_LOG_READ_LAT_LOG = 0xc1,
|
||
INTEL_LOG_WRITE_LAT_LOG = 0xc2,
|
||
INTEL_LOG_TEMP_STATS = 0xc5,
|
||
INTEL_LOG_ADD_SMART = 0xca,
|
||
INTEL_LOG_DRIVE_MKT_NAME = 0xdd,
|
||
|
||
/*
|
||
* HGST log page, with lots ofs sub pages.
|
||
*/
|
||
HGST_INFO_LOG = 0xc1,
|
||
};
|
||
|
||
struct nvme_error_information_entry {
|
||
|
||
uint64_t error_count;
|
||
uint16_t sqid;
|
||
uint16_t cid;
|
||
uint16_t status;
|
||
uint16_t error_location;
|
||
uint64_t lba;
|
||
uint32_t nsid;
|
||
uint8_t vendor_specific;
|
||
uint8_t reserved[35];
|
||
} __packed __aligned(4);
|
||
|
||
_Static_assert(sizeof(struct nvme_error_information_entry) == 64, "bad size for nvme_error_information_entry");
|
||
|
||
struct nvme_health_information_page {
|
||
|
||
uint8_t critical_warning;
|
||
uint16_t temperature;
|
||
uint8_t available_spare;
|
||
uint8_t available_spare_threshold;
|
||
uint8_t percentage_used;
|
||
|
||
uint8_t reserved[26];
|
||
|
||
/*
|
||
* Note that the following are 128-bit values, but are
|
||
* defined as an array of 2 64-bit values.
|
||
*/
|
||
/* Data Units Read is always in 512-byte units. */
|
||
uint64_t data_units_read[2];
|
||
/* Data Units Written is always in 512-byte units. */
|
||
uint64_t data_units_written[2];
|
||
/* For NVM command set, this includes Compare commands. */
|
||
uint64_t host_read_commands[2];
|
||
uint64_t host_write_commands[2];
|
||
/* Controller Busy Time is reported in minutes. */
|
||
uint64_t controller_busy_time[2];
|
||
uint64_t power_cycles[2];
|
||
uint64_t power_on_hours[2];
|
||
uint64_t unsafe_shutdowns[2];
|
||
uint64_t media_errors[2];
|
||
uint64_t num_error_info_log_entries[2];
|
||
uint32_t warning_temp_time;
|
||
uint32_t error_temp_time;
|
||
uint16_t temp_sensor[8];
|
||
|
||
uint8_t reserved2[296];
|
||
} __packed __aligned(4);
|
||
|
||
_Static_assert(sizeof(struct nvme_health_information_page) == 512, "bad size for nvme_health_information_page");
|
||
|
||
struct nvme_firmware_page {
|
||
|
||
uint8_t afi;
|
||
uint8_t reserved[7];
|
||
uint64_t revision[7]; /* revisions for 7 slots */
|
||
uint8_t reserved2[448];
|
||
} __packed __aligned(4);
|
||
|
||
_Static_assert(sizeof(struct nvme_firmware_page) == 512, "bad size for nvme_firmware_page");
|
||
|
||
struct nvme_ns_list {
|
||
uint32_t ns[1024];
|
||
} __packed __aligned(4);
|
||
|
||
_Static_assert(sizeof(struct nvme_ns_list) == 4096, "bad size for nvme_ns_list");
|
||
|
||
struct intel_log_temp_stats
|
||
{
|
||
uint64_t current;
|
||
uint64_t overtemp_flag_last;
|
||
uint64_t overtemp_flag_life;
|
||
uint64_t max_temp;
|
||
uint64_t min_temp;
|
||
uint64_t _rsvd[5];
|
||
uint64_t max_oper_temp;
|
||
uint64_t min_oper_temp;
|
||
uint64_t est_offset;
|
||
} __packed __aligned(4);
|
||
|
||
_Static_assert(sizeof(struct intel_log_temp_stats) == 13 * 8, "bad size for intel_log_temp_stats");
|
||
|
||
#define NVME_TEST_MAX_THREADS 128
|
||
|
||
struct nvme_io_test {
|
||
|
||
enum nvme_nvm_opcode opc;
|
||
uint32_t size;
|
||
uint32_t time; /* in seconds */
|
||
uint32_t num_threads;
|
||
uint32_t flags;
|
||
uint64_t io_completed[NVME_TEST_MAX_THREADS];
|
||
};
|
||
|
||
enum nvme_io_test_flags {
|
||
|
||
/*
|
||
* Specifies whether dev_refthread/dev_relthread should be
|
||
* called during NVME_BIO_TEST. Ignored for other test
|
||
* types.
|
||
*/
|
||
NVME_TEST_FLAG_REFTHREAD = 0x1,
|
||
};
|
||
|
||
struct nvme_pt_command {
|
||
|
||
/*
|
||
* cmd is used to specify a passthrough command to a controller or
|
||
* namespace.
|
||
*
|
||
* The following fields from cmd may be specified by the caller:
|
||
* * opc (opcode)
|
||
* * nsid (namespace id) - for admin commands only
|
||
* * cdw10-cdw15
|
||
*
|
||
* Remaining fields must be set to 0 by the caller.
|
||
*/
|
||
struct nvme_command cmd;
|
||
|
||
/*
|
||
* cpl returns completion status for the passthrough command
|
||
* specified by cmd.
|
||
*
|
||
* The following fields will be filled out by the driver, for
|
||
* consumption by the caller:
|
||
* * cdw0
|
||
* * status (except for phase)
|
||
*
|
||
* Remaining fields will be set to 0 by the driver.
|
||
*/
|
||
struct nvme_completion cpl;
|
||
|
||
/* buf is the data buffer associated with this passthrough command. */
|
||
void * buf;
|
||
|
||
/*
|
||
* len is the length of the data buffer associated with this
|
||
* passthrough command.
|
||
*/
|
||
uint32_t len;
|
||
|
||
/*
|
||
* is_read = 1 if the passthrough command will read data into the
|
||
* supplied buffer from the controller.
|
||
*
|
||
* is_read = 0 if the passthrough command will write data from the
|
||
* supplied buffer to the controller.
|
||
*/
|
||
uint32_t is_read;
|
||
|
||
/*
|
||
* driver_lock is used by the driver only. It must be set to 0
|
||
* by the caller.
|
||
*/
|
||
struct mtx * driver_lock;
|
||
};
|
||
|
||
#define nvme_completion_is_error(cpl) \
|
||
(NVME_STATUS_GET_SC((cpl)->status) != 0 || NVME_STATUS_GET_SCT((cpl)->status) != 0)
|
||
|
||
void nvme_strvis(uint8_t *dst, const uint8_t *src, int dstlen, int srclen);
|
||
|
||
#ifdef _KERNEL
|
||
|
||
struct bio;
|
||
|
||
struct nvme_namespace;
|
||
struct nvme_controller;
|
||
struct nvme_consumer;
|
||
|
||
typedef void (*nvme_cb_fn_t)(void *, const struct nvme_completion *);
|
||
|
||
typedef void *(*nvme_cons_ns_fn_t)(struct nvme_namespace *, void *);
|
||
typedef void *(*nvme_cons_ctrlr_fn_t)(struct nvme_controller *);
|
||
typedef void (*nvme_cons_async_fn_t)(void *, const struct nvme_completion *,
|
||
uint32_t, void *, uint32_t);
|
||
typedef void (*nvme_cons_fail_fn_t)(void *);
|
||
|
||
enum nvme_namespace_flags {
|
||
NVME_NS_DEALLOCATE_SUPPORTED = 0x1,
|
||
NVME_NS_FLUSH_SUPPORTED = 0x2,
|
||
};
|
||
|
||
int nvme_ctrlr_passthrough_cmd(struct nvme_controller *ctrlr,
|
||
struct nvme_pt_command *pt,
|
||
uint32_t nsid, int is_user_buffer,
|
||
int is_admin_cmd);
|
||
|
||
/* Admin functions */
|
||
void nvme_ctrlr_cmd_set_feature(struct nvme_controller *ctrlr,
|
||
uint8_t feature, uint32_t cdw11,
|
||
void *payload, uint32_t payload_size,
|
||
nvme_cb_fn_t cb_fn, void *cb_arg);
|
||
void nvme_ctrlr_cmd_get_feature(struct nvme_controller *ctrlr,
|
||
uint8_t feature, uint32_t cdw11,
|
||
void *payload, uint32_t payload_size,
|
||
nvme_cb_fn_t cb_fn, void *cb_arg);
|
||
void nvme_ctrlr_cmd_get_log_page(struct nvme_controller *ctrlr,
|
||
uint8_t log_page, uint32_t nsid,
|
||
void *payload, uint32_t payload_size,
|
||
nvme_cb_fn_t cb_fn, void *cb_arg);
|
||
|
||
/* NVM I/O functions */
|
||
int nvme_ns_cmd_write(struct nvme_namespace *ns, void *payload,
|
||
uint64_t lba, uint32_t lba_count, nvme_cb_fn_t cb_fn,
|
||
void *cb_arg);
|
||
int nvme_ns_cmd_write_bio(struct nvme_namespace *ns, struct bio *bp,
|
||
nvme_cb_fn_t cb_fn, void *cb_arg);
|
||
int nvme_ns_cmd_read(struct nvme_namespace *ns, void *payload,
|
||
uint64_t lba, uint32_t lba_count, nvme_cb_fn_t cb_fn,
|
||
void *cb_arg);
|
||
int nvme_ns_cmd_read_bio(struct nvme_namespace *ns, struct bio *bp,
|
||
nvme_cb_fn_t cb_fn, void *cb_arg);
|
||
int nvme_ns_cmd_deallocate(struct nvme_namespace *ns, void *payload,
|
||
uint8_t num_ranges, nvme_cb_fn_t cb_fn,
|
||
void *cb_arg);
|
||
int nvme_ns_cmd_flush(struct nvme_namespace *ns, nvme_cb_fn_t cb_fn,
|
||
void *cb_arg);
|
||
int nvme_ns_dump(struct nvme_namespace *ns, void *virt, off_t offset,
|
||
size_t len);
|
||
|
||
/* Registration functions */
|
||
struct nvme_consumer * nvme_register_consumer(nvme_cons_ns_fn_t ns_fn,
|
||
nvme_cons_ctrlr_fn_t ctrlr_fn,
|
||
nvme_cons_async_fn_t async_fn,
|
||
nvme_cons_fail_fn_t fail_fn);
|
||
void nvme_unregister_consumer(struct nvme_consumer *consumer);
|
||
|
||
/* Controller helper functions */
|
||
device_t nvme_ctrlr_get_device(struct nvme_controller *ctrlr);
|
||
const struct nvme_controller_data *
|
||
nvme_ctrlr_get_data(struct nvme_controller *ctrlr);
|
||
|
||
/* Namespace helper functions */
|
||
uint32_t nvme_ns_get_max_io_xfer_size(struct nvme_namespace *ns);
|
||
uint32_t nvme_ns_get_sector_size(struct nvme_namespace *ns);
|
||
uint64_t nvme_ns_get_num_sectors(struct nvme_namespace *ns);
|
||
uint64_t nvme_ns_get_size(struct nvme_namespace *ns);
|
||
uint32_t nvme_ns_get_flags(struct nvme_namespace *ns);
|
||
const char * nvme_ns_get_serial_number(struct nvme_namespace *ns);
|
||
const char * nvme_ns_get_model_number(struct nvme_namespace *ns);
|
||
const struct nvme_namespace_data *
|
||
nvme_ns_get_data(struct nvme_namespace *ns);
|
||
uint32_t nvme_ns_get_stripesize(struct nvme_namespace *ns);
|
||
|
||
int nvme_ns_bio_process(struct nvme_namespace *ns, struct bio *bp,
|
||
nvme_cb_fn_t cb_fn);
|
||
|
||
/*
|
||
* Command building helper functions -- shared with CAM
|
||
* These functions assume allocator zeros out cmd structure
|
||
* CAM's xpt_get_ccb and the request allocator for nvme both
|
||
* do zero'd allocations.
|
||
*/
|
||
static inline
|
||
void nvme_ns_flush_cmd(struct nvme_command *cmd, uint32_t nsid)
|
||
{
|
||
|
||
cmd->opc = NVME_OPC_FLUSH;
|
||
cmd->nsid = htole32(nsid);
|
||
}
|
||
|
||
static inline
|
||
void nvme_ns_rw_cmd(struct nvme_command *cmd, uint32_t rwcmd, uint32_t nsid,
|
||
uint64_t lba, uint32_t count)
|
||
{
|
||
cmd->opc = rwcmd;
|
||
cmd->nsid = htole32(nsid);
|
||
cmd->cdw10 = htole32(lba & 0xffffffffu);
|
||
cmd->cdw11 = htole32(lba >> 32);
|
||
cmd->cdw12 = htole32(count-1);
|
||
}
|
||
|
||
static inline
|
||
void nvme_ns_write_cmd(struct nvme_command *cmd, uint32_t nsid,
|
||
uint64_t lba, uint32_t count)
|
||
{
|
||
nvme_ns_rw_cmd(cmd, NVME_OPC_WRITE, nsid, lba, count);
|
||
}
|
||
|
||
static inline
|
||
void nvme_ns_read_cmd(struct nvme_command *cmd, uint32_t nsid,
|
||
uint64_t lba, uint32_t count)
|
||
{
|
||
nvme_ns_rw_cmd(cmd, NVME_OPC_READ, nsid, lba, count);
|
||
}
|
||
|
||
static inline
|
||
void nvme_ns_trim_cmd(struct nvme_command *cmd, uint32_t nsid,
|
||
uint32_t num_ranges)
|
||
{
|
||
cmd->opc = NVME_OPC_DATASET_MANAGEMENT;
|
||
cmd->nsid = htole32(nsid);
|
||
cmd->cdw10 = htole32(num_ranges - 1);
|
||
cmd->cdw11 = htole32(NVME_DSM_ATTR_DEALLOCATE);
|
||
}
|
||
|
||
extern int nvme_use_nvd;
|
||
|
||
#endif /* _KERNEL */
|
||
|
||
/* Endianess conversion functions for NVMe structs */
|
||
static inline
|
||
void nvme_completion_swapbytes(struct nvme_completion *s)
|
||
{
|
||
|
||
s->cdw0 = le32toh(s->cdw0);
|
||
/* omit rsvd1 */
|
||
s->sqhd = le16toh(s->sqhd);
|
||
s->sqid = le16toh(s->sqid);
|
||
/* omit cid */
|
||
s->status = le16toh(s->status);
|
||
}
|
||
|
||
static inline
|
||
void nvme_power_state_swapbytes(struct nvme_power_state *s)
|
||
{
|
||
|
||
s->mp = le16toh(s->mp);
|
||
s->enlat = le32toh(s->enlat);
|
||
s->exlat = le32toh(s->exlat);
|
||
s->idlp = le16toh(s->idlp);
|
||
s->actp = le16toh(s->actp);
|
||
}
|
||
|
||
static inline
|
||
void nvme_controller_data_swapbytes(struct nvme_controller_data *s)
|
||
{
|
||
int i;
|
||
|
||
s->vid = le16toh(s->vid);
|
||
s->ssvid = le16toh(s->ssvid);
|
||
s->ctrlr_id = le16toh(s->ctrlr_id);
|
||
s->ver = le32toh(s->ver);
|
||
s->rtd3r = le32toh(s->rtd3r);
|
||
s->rtd3e = le32toh(s->rtd3e);
|
||
s->oaes = le32toh(s->oaes);
|
||
s->ctratt = le32toh(s->ctratt);
|
||
s->oacs = le16toh(s->oacs);
|
||
s->wctemp = le16toh(s->wctemp);
|
||
s->cctemp = le16toh(s->cctemp);
|
||
s->mtfa = le16toh(s->mtfa);
|
||
s->hmpre = le32toh(s->hmpre);
|
||
s->hmmin = le32toh(s->hmmin);
|
||
s->rpmbs = le32toh(s->rpmbs);
|
||
s->edstt = le16toh(s->edstt);
|
||
s->kas = le16toh(s->kas);
|
||
s->hctma = le16toh(s->hctma);
|
||
s->mntmt = le16toh(s->mntmt);
|
||
s->mxtmt = le16toh(s->mxtmt);
|
||
s->sanicap = le32toh(s->sanicap);
|
||
s->maxcmd = le16toh(s->maxcmd);
|
||
s->nn = le32toh(s->nn);
|
||
s->oncs = le16toh(s->oncs);
|
||
s->fuses = le16toh(s->fuses);
|
||
s->awun = le16toh(s->awun);
|
||
s->awupf = le16toh(s->awupf);
|
||
s->acwu = le16toh(s->acwu);
|
||
s->sgls = le32toh(s->sgls);
|
||
for (i = 0; i < 32; i++)
|
||
nvme_power_state_swapbytes(&s->power_state[i]);
|
||
}
|
||
|
||
static inline
|
||
void nvme_namespace_data_swapbytes(struct nvme_namespace_data *s)
|
||
{
|
||
int i;
|
||
|
||
s->nsze = le64toh(s->nsze);
|
||
s->ncap = le64toh(s->ncap);
|
||
s->nuse = le64toh(s->nuse);
|
||
s->nawun = le16toh(s->nawun);
|
||
s->nawupf = le16toh(s->nawupf);
|
||
s->nacwu = le16toh(s->nacwu);
|
||
s->nabsn = le16toh(s->nabsn);
|
||
s->nabo = le16toh(s->nabo);
|
||
s->nabspf = le16toh(s->nabspf);
|
||
s->noiob = le16toh(s->noiob);
|
||
for (i = 0; i < 16; i++)
|
||
s->lbaf[i] = le32toh(s->lbaf[i]);
|
||
}
|
||
|
||
static inline
|
||
void nvme_error_information_entry_swapbytes(struct nvme_error_information_entry *s)
|
||
{
|
||
|
||
s->error_count = le64toh(s->error_count);
|
||
s->sqid = le16toh(s->sqid);
|
||
s->cid = le16toh(s->cid);
|
||
s->status = le16toh(s->status);
|
||
s->error_location = le16toh(s->error_location);
|
||
s->lba = le64toh(s->lba);
|
||
s->nsid = le32toh(s->nsid);
|
||
}
|
||
|
||
static inline
|
||
void nvme_le128toh(void *p)
|
||
{
|
||
#if _BYTE_ORDER != _LITTLE_ENDIAN
|
||
/* Swap 16 bytes in place */
|
||
char *tmp = (char*)p;
|
||
char b;
|
||
int i;
|
||
for (i = 0; i < 8; i++) {
|
||
b = tmp[i];
|
||
tmp[i] = tmp[15-i];
|
||
tmp[15-i] = b;
|
||
}
|
||
#else
|
||
(void)p;
|
||
#endif
|
||
}
|
||
|
||
static inline
|
||
void nvme_health_information_page_swapbytes(struct nvme_health_information_page *s)
|
||
{
|
||
int i;
|
||
|
||
s->temperature = le16toh(s->temperature);
|
||
nvme_le128toh((void *)s->data_units_read);
|
||
nvme_le128toh((void *)s->data_units_written);
|
||
nvme_le128toh((void *)s->host_read_commands);
|
||
nvme_le128toh((void *)s->host_write_commands);
|
||
nvme_le128toh((void *)s->controller_busy_time);
|
||
nvme_le128toh((void *)s->power_cycles);
|
||
nvme_le128toh((void *)s->power_on_hours);
|
||
nvme_le128toh((void *)s->unsafe_shutdowns);
|
||
nvme_le128toh((void *)s->media_errors);
|
||
nvme_le128toh((void *)s->num_error_info_log_entries);
|
||
s->warning_temp_time = le32toh(s->warning_temp_time);
|
||
s->error_temp_time = le32toh(s->error_temp_time);
|
||
for (i = 0; i < 8; i++)
|
||
s->temp_sensor[i] = le16toh(s->temp_sensor[i]);
|
||
}
|
||
|
||
|
||
static inline
|
||
void nvme_firmware_page_swapbytes(struct nvme_firmware_page *s)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < 7; i++)
|
||
s->revision[i] = le64toh(s->revision[i]);
|
||
}
|
||
|
||
static inline
|
||
void nvme_ns_list_swapbytes(struct nvme_ns_list *s)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < 1024; i++)
|
||
s->ns[i] = le32toh(s->ns[i]);
|
||
}
|
||
|
||
static inline
|
||
void intel_log_temp_stats_swapbytes(struct intel_log_temp_stats *s)
|
||
{
|
||
|
||
s->current = le64toh(s->current);
|
||
s->overtemp_flag_last = le64toh(s->overtemp_flag_last);
|
||
s->overtemp_flag_life = le64toh(s->overtemp_flag_life);
|
||
s->max_temp = le64toh(s->max_temp);
|
||
s->min_temp = le64toh(s->min_temp);
|
||
/* omit _rsvd[] */
|
||
s->max_oper_temp = le64toh(s->max_oper_temp);
|
||
s->min_oper_temp = le64toh(s->min_oper_temp);
|
||
s->est_offset = le64toh(s->est_offset);
|
||
}
|
||
|
||
#endif /* __NVME_H__ */
|