diff options
Diffstat (limited to 'sys/cam/nvme/nvme_all.c')
| -rw-r--r-- | sys/cam/nvme/nvme_all.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/sys/cam/nvme/nvme_all.c b/sys/cam/nvme/nvme_all.c new file mode 100644 index 000000000000..14fcd3a7536e --- /dev/null +++ b/sys/cam/nvme/nvme_all.c @@ -0,0 +1,215 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2015 Netflix, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer, + * without modification, immediately at the beginning of the file. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> + +#ifdef _KERNEL +#include "opt_scsi.h" + +#include <sys/systm.h> +#include <sys/libkern.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/sysctl.h> +#else +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#ifndef min +#define min(a,b) (((a)<(b))?(a):(b)) +#endif +#endif + +#include <cam/cam.h> +#include <cam/cam_ccb.h> +#include <cam/cam_queue.h> +#include <cam/cam_xpt.h> +#include <cam/nvme/nvme_all.h> +#include <sys/sbuf.h> +#include <sys/endian.h> + +#ifdef _KERNEL +#include <cam/cam_periph.h> +#include <cam/cam_xpt_sim.h> +#include <cam/cam_xpt_periph.h> +#include <cam/cam_xpt_internal.h> +#endif + +void +nvme_ns_cmd(struct ccb_nvmeio *nvmeio, uint8_t cmd, uint32_t nsid, + uint32_t cdw10, uint32_t cdw11, uint32_t cdw12, uint32_t cdw13, + uint32_t cdw14, uint32_t cdw15) +{ + bzero(&nvmeio->cmd, sizeof(struct nvme_command)); + nvmeio->cmd.opc = cmd; + nvmeio->cmd.nsid = htole32(nsid); + nvmeio->cmd.cdw10 = htole32(cdw10); + nvmeio->cmd.cdw11 = htole32(cdw11); + nvmeio->cmd.cdw12 = htole32(cdw12); + nvmeio->cmd.cdw13 = htole32(cdw13); + nvmeio->cmd.cdw14 = htole32(cdw14); + nvmeio->cmd.cdw15 = htole32(cdw15); +} + +int +nvme_identify_match(caddr_t identbuffer, caddr_t table_entry) +{ + return 0; +} + +void +nvme_print_ident(const struct nvme_controller_data *cdata, + const struct nvme_namespace_data *data, struct sbuf *sb) +{ + + sbuf_printf(sb, "<"); + cam_strvis_sbuf(sb, cdata->mn, sizeof(cdata->mn), 0); + sbuf_printf(sb, " "); + cam_strvis_sbuf(sb, cdata->fr, sizeof(cdata->fr), 0); + sbuf_printf(sb, " "); + cam_strvis_sbuf(sb, cdata->sn, sizeof(cdata->sn), 0); + sbuf_printf(sb, ">\n"); +} + +/* XXX need to do nvme admin opcodes too, but those aren't used yet by nda */ +static const char * +nvme_opc2str[] = { + "FLUSH", + "WRITE", + "READ", + "RSVD-3", + "WRITE_UNCORRECTABLE", + "COMPARE", + "RSVD-6", + "RSVD-7", + "WRITE_ZEROES", + "DATASET_MANAGEMENT", + "RSVD-a", + "RSVD-b", + "RSVD-c", + "RESERVATION_REGISTER", + "RESERVATION_REPORT", + "RSVD-f", + "RSVD-10", + "RESERVATION_ACQUIRE", + "RSVD-12", + "RSVD-13", + "RSVD-14", + "RESERVATION_RELEASE", +}; + +const char * +nvme_op_string(const struct nvme_command *cmd, int admin) +{ + + if (admin) { + return "ADMIN"; + } else { + if (cmd->opc >= nitems(nvme_opc2str)) + return "UNKNOWN"; + return nvme_opc2str[cmd->opc]; + } +} + +const char * +nvme_cmd_string(const struct nvme_command *cmd, char *cmd_string, size_t len) +{ + struct sbuf sb; + int error; + + if (len == 0) + return (""); + + sbuf_new(&sb, cmd_string, len, SBUF_FIXEDLEN); + nvme_cmd_sbuf(cmd, &sb); + + error = sbuf_finish(&sb); + if (error != 0 && +#ifdef _KERNEL + error != ENOMEM) +#else + errno != ENOMEM) +#endif + return (""); + + return(sbuf_data(&sb)); +} + +void +nvme_cmd_sbuf(const struct nvme_command *cmd, struct sbuf *sb) +{ + + /* + * cid, rsvd areas and mptr not printed, since they are used + * only internally by the SIM. + */ + sbuf_printf(sb, + "opc=%x fuse=%x nsid=%x prp1=%llx prp2=%llx cdw=%x %x %x %x %x %x", + cmd->opc, cmd->fuse, cmd->nsid, + (unsigned long long)cmd->prp1, (unsigned long long)cmd->prp2, + cmd->cdw10, cmd->cdw11, cmd->cdw12, + cmd->cdw13, cmd->cdw14, cmd->cdw15); +} + +/* + * nvme_command_sbuf() returns 0 for success and -1 for failure. + */ +int +nvme_command_sbuf(struct ccb_nvmeio *nvmeio, struct sbuf *sb) +{ + + sbuf_printf(sb, "%s. NCB: ", nvme_op_string(&nvmeio->cmd, + nvmeio->ccb_h.func_code == XPT_NVME_ADMIN)); + nvme_cmd_sbuf(&nvmeio->cmd, sb); + return(0); +} + +#ifdef _KERNEL +const void * +nvme_get_identify_cntrl(struct cam_periph *periph) +{ + struct cam_ed *device; + + device = periph->path->device; + + return device->nvme_cdata; +} + +const void * +nvme_get_identify_ns(struct cam_periph *periph) +{ + struct cam_ed *device; + + device = periph->path->device; + + return device->nvme_data; +} +#endif |