1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2015 Netflix, Inc. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 33 #ifdef _KERNEL 34 #include "opt_scsi.h" 35 36 #include <sys/systm.h> 37 #include <sys/libkern.h> 38 #include <sys/kernel.h> 39 #include <sys/malloc.h> 40 #include <sys/sysctl.h> 41 #else 42 #include <errno.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <string.h> 46 #ifndef min 47 #define min(a,b) (((a)<(b))?(a):(b)) 48 #endif 49 #endif 50 51 #include <cam/cam.h> 52 #include <cam/cam_ccb.h> 53 #include <cam/cam_queue.h> 54 #include <cam/cam_xpt.h> 55 #include <cam/nvme/nvme_all.h> 56 #include <sys/sbuf.h> 57 #include <sys/endian.h> 58 59 #ifdef _KERNEL 60 #include <cam/cam_periph.h> 61 #include <cam/cam_xpt_sim.h> 62 #include <cam/cam_xpt_periph.h> 63 #include <cam/cam_xpt_internal.h> 64 #endif 65 66 void 67 nvme_ns_cmd(struct ccb_nvmeio *nvmeio, uint8_t cmd, uint32_t nsid, 68 uint32_t cdw10, uint32_t cdw11, uint32_t cdw12, uint32_t cdw13, 69 uint32_t cdw14, uint32_t cdw15) 70 { 71 bzero(&nvmeio->cmd, sizeof(struct nvme_command)); 72 nvmeio->cmd.opc = cmd; 73 nvmeio->cmd.nsid = htole32(nsid); 74 nvmeio->cmd.cdw10 = htole32(cdw10); 75 nvmeio->cmd.cdw11 = htole32(cdw11); 76 nvmeio->cmd.cdw12 = htole32(cdw12); 77 nvmeio->cmd.cdw13 = htole32(cdw13); 78 nvmeio->cmd.cdw14 = htole32(cdw14); 79 nvmeio->cmd.cdw15 = htole32(cdw15); 80 } 81 82 int 83 nvme_identify_match(caddr_t identbuffer, caddr_t table_entry) 84 { 85 return 0; 86 } 87 88 void 89 nvme_print_ident(const struct nvme_controller_data *cdata, 90 const struct nvme_namespace_data *data, struct sbuf *sb) 91 { 92 93 sbuf_printf(sb, "<"); 94 cam_strvis_sbuf(sb, cdata->mn, sizeof(cdata->mn), 0); 95 sbuf_printf(sb, " "); 96 cam_strvis_sbuf(sb, cdata->fr, sizeof(cdata->fr), 0); 97 sbuf_printf(sb, " "); 98 cam_strvis_sbuf(sb, cdata->sn, sizeof(cdata->sn), 0); 99 sbuf_printf(sb, ">\n"); 100 } 101 102 /* XXX need to do nvme admin opcodes too, but those aren't used yet by nda */ 103 static const char * 104 nvme_opc2str[] = { 105 "FLUSH", 106 "WRITE", 107 "READ", 108 "RSVD-3", 109 "WRITE_UNCORRECTABLE", 110 "COMPARE", 111 "RSVD-6", 112 "RSVD-7", 113 "WRITE_ZEROES", 114 "DATASET_MANAGEMENT", 115 "RSVD-a", 116 "RSVD-b", 117 "RSVD-c", 118 "RESERVATION_REGISTER", 119 "RESERVATION_REPORT", 120 "RSVD-f", 121 "RSVD-10", 122 "RESERVATION_ACQUIRE", 123 "RSVD-12", 124 "RSVD-13", 125 "RSVD-14", 126 "RESERVATION_RELEASE", 127 }; 128 129 const char * 130 nvme_op_string(const struct nvme_command *cmd, int admin) 131 { 132 133 if (admin) { 134 return "ADMIN"; 135 } else { 136 if (cmd->opc >= nitems(nvme_opc2str)) 137 return "UNKNOWN"; 138 return nvme_opc2str[cmd->opc]; 139 } 140 } 141 142 const char * 143 nvme_cmd_string(const struct nvme_command *cmd, char *cmd_string, size_t len) 144 { 145 struct sbuf sb; 146 int error; 147 148 if (len == 0) 149 return (""); 150 151 sbuf_new(&sb, cmd_string, len, SBUF_FIXEDLEN); 152 nvme_cmd_sbuf(cmd, &sb); 153 154 error = sbuf_finish(&sb); 155 if (error != 0 && 156 #ifdef _KERNEL 157 error != ENOMEM) 158 #else 159 errno != ENOMEM) 160 #endif 161 return (""); 162 163 return(sbuf_data(&sb)); 164 } 165 166 void 167 nvme_cmd_sbuf(const struct nvme_command *cmd, struct sbuf *sb) 168 { 169 170 /* 171 * cid, rsvd areas and mptr not printed, since they are used 172 * only internally by the SIM. 173 */ 174 sbuf_printf(sb, 175 "opc=%x fuse=%x nsid=%x prp1=%llx prp2=%llx cdw=%x %x %x %x %x %x", 176 cmd->opc, cmd->fuse, cmd->nsid, 177 (unsigned long long)cmd->prp1, (unsigned long long)cmd->prp2, 178 cmd->cdw10, cmd->cdw11, cmd->cdw12, 179 cmd->cdw13, cmd->cdw14, cmd->cdw15); 180 } 181 182 /* 183 * nvme_command_sbuf() returns 0 for success and -1 for failure. 184 */ 185 int 186 nvme_command_sbuf(struct ccb_nvmeio *nvmeio, struct sbuf *sb) 187 { 188 189 sbuf_printf(sb, "%s. NCB: ", nvme_op_string(&nvmeio->cmd, 190 nvmeio->ccb_h.func_code == XPT_NVME_ADMIN)); 191 nvme_cmd_sbuf(&nvmeio->cmd, sb); 192 return(0); 193 } 194 195 #ifdef _KERNEL 196 const void * 197 nvme_get_identify_cntrl(struct cam_periph *periph) 198 { 199 struct cam_ed *device; 200 201 device = periph->path->device; 202 203 return device->nvme_cdata; 204 } 205 206 const void * 207 nvme_get_identify_ns(struct cam_periph *periph) 208 { 209 struct cam_ed *device; 210 211 device = periph->path->device; 212 213 return device->nvme_data; 214 } 215 #endif 216