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