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2f7b0de1de
This includes functions to validate NVMe Qualified Names, compute an initial value of the CAP property, validate changes to the CC property, and populate the Identify Controller data structure for an I/O controller. Reviewed by: imp Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D44709
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2023-2024 Chelsio Communications, Inc.
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* Written by: John Baldwin <jhb@FreeBSD.org>
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*/
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#ifndef __NVMFT_SUBR_H__
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#define __NVMFT_SUBR_H__
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/*
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* Lower-level controller-specific routines shared between the kernel
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* and userland.
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*/
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/* Validate a NVMe Qualified Name. */
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bool nvmf_nqn_valid(const char *nqn);
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/* Compute the initial state of CAP for a controller. */
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uint64_t _nvmf_controller_cap(uint32_t max_io_qsize, uint8_t enable_timeout);
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/*
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* Validate if a new value for CC is legal given the existing values of
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* CAP and CC.
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*/
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bool _nvmf_validate_cc(uint32_t max_io_qsize, uint64_t cap, uint32_t old_cc,
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uint32_t new_cc);
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/* Generate a serial number string from a host ID. */
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void nvmf_controller_serial(char *buf, size_t len, u_long hostid);
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/*
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* Copy an ASCII string into the destination buffer but pad the end of
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* the buffer with spaces and no terminating nul.
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*/
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void nvmf_strpad(char *dst, const char *src, size_t len);
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/*
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* Populate an Identify Controller data structure for an I/O
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* controller.
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*/
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void _nvmf_init_io_controller_data(uint16_t cntlid, uint32_t max_io_qsize,
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const char *serial, const char *model, const char *firmware_version,
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const char *subnqn, int nn, uint32_t ioccsz, uint32_t iorcsz,
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struct nvme_controller_data *cdata);
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#endif /* !__NVMFT_SUBR_H__ */
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