Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | * This file contains tcm implementation using v4 configfs fabric infrastructure |
| 3 | * for QLogic target mode HBAs |
| 4 | * |
Nicholas Bellinger | 4c76251 | 2013-09-05 15:29:12 -0700 | [diff] [blame] | 5 | * (c) Copyright 2010-2013 Datera, Inc. |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 6 | * |
Nicholas Bellinger | 4c76251 | 2013-09-05 15:29:12 -0700 | [diff] [blame] | 7 | * Author: Nicholas A. Bellinger <nab@daterainc.com> |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 8 | * |
| 9 | * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from |
| 10 | * the TCM_FC / Open-FCoE.org fabric module. |
| 11 | * |
| 12 | * Copyright (c) 2010 Cisco Systems, Inc |
| 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | ****************************************************************************/ |
| 24 | |
| 25 | |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/moduleparam.h> |
| 28 | #include <generated/utsrelease.h> |
| 29 | #include <linux/utsname.h> |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/list.h> |
| 32 | #include <linux/slab.h> |
| 33 | #include <linux/kthread.h> |
| 34 | #include <linux/types.h> |
| 35 | #include <linux/string.h> |
| 36 | #include <linux/configfs.h> |
| 37 | #include <linux/ctype.h> |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 38 | #include <asm/unaligned.h> |
| 39 | #include <scsi/scsi.h> |
| 40 | #include <scsi/scsi_host.h> |
| 41 | #include <scsi/scsi_device.h> |
| 42 | #include <scsi/scsi_cmnd.h> |
| 43 | #include <target/target_core_base.h> |
| 44 | #include <target/target_core_fabric.h> |
| 45 | #include <target/target_core_fabric_configfs.h> |
| 46 | #include <target/target_core_configfs.h> |
| 47 | #include <target/configfs_macros.h> |
| 48 | |
| 49 | #include "qla_def.h" |
| 50 | #include "qla_target.h" |
| 51 | #include "tcm_qla2xxx.h" |
| 52 | |
Himanshu Madhani | 4d6609c | 2014-09-25 06:14:43 -0400 | [diff] [blame] | 53 | static struct workqueue_struct *tcm_qla2xxx_free_wq; |
| 54 | static struct workqueue_struct *tcm_qla2xxx_cmd_wq; |
| 55 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 56 | static const struct target_core_fabric_ops tcm_qla2xxx_ops; |
| 57 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 58 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 59 | /* |
| 60 | * Parse WWN. |
| 61 | * If strict, we require lower-case hex and colon separators to be sure |
| 62 | * the name is the same as what would be generated by ft_format_wwn() |
| 63 | * so the name and wwn are mapped one-to-one. |
| 64 | */ |
| 65 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) |
| 66 | { |
| 67 | const char *cp; |
| 68 | char c; |
| 69 | u32 nibble; |
| 70 | u32 byte = 0; |
| 71 | u32 pos = 0; |
| 72 | u32 err; |
| 73 | |
| 74 | *wwn = 0; |
| 75 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { |
| 76 | c = *cp; |
| 77 | if (c == '\n' && cp[1] == '\0') |
| 78 | continue; |
| 79 | if (strict && pos++ == 2 && byte++ < 7) { |
| 80 | pos = 0; |
| 81 | if (c == ':') |
| 82 | continue; |
| 83 | err = 1; |
| 84 | goto fail; |
| 85 | } |
| 86 | if (c == '\0') { |
| 87 | err = 2; |
| 88 | if (strict && byte != 8) |
| 89 | goto fail; |
| 90 | return cp - name; |
| 91 | } |
| 92 | err = 3; |
| 93 | if (isdigit(c)) |
| 94 | nibble = c - '0'; |
| 95 | else if (isxdigit(c) && (islower(c) || !strict)) |
| 96 | nibble = tolower(c) - 'a' + 10; |
| 97 | else |
| 98 | goto fail; |
| 99 | *wwn = (*wwn << 4) | nibble; |
| 100 | } |
| 101 | err = 4; |
| 102 | fail: |
| 103 | pr_debug("err %u len %zu pos %u byte %u\n", |
| 104 | err, cp - name, pos, byte); |
| 105 | return -1; |
| 106 | } |
| 107 | |
| 108 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) |
| 109 | { |
| 110 | u8 b[8]; |
| 111 | |
| 112 | put_unaligned_be64(wwn, b); |
| 113 | return snprintf(buf, len, |
| 114 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", |
| 115 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); |
| 116 | } |
| 117 | |
| 118 | static char *tcm_qla2xxx_get_fabric_name(void) |
| 119 | { |
| 120 | return "qla2xxx"; |
| 121 | } |
| 122 | |
| 123 | /* |
| 124 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn |
| 125 | */ |
| 126 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) |
| 127 | { |
Roland Dreier | d4f75b5 | 2012-06-11 18:31:31 -0700 | [diff] [blame] | 128 | unsigned int i, j; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 129 | u8 wwn[8]; |
| 130 | |
| 131 | memset(wwn, 0, sizeof(wwn)); |
| 132 | |
| 133 | /* Validate and store the new name */ |
| 134 | for (i = 0, j = 0; i < 16; i++) { |
Roland Dreier | d4f75b5 | 2012-06-11 18:31:31 -0700 | [diff] [blame] | 135 | int value; |
| 136 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 137 | value = hex_to_bin(*ns++); |
| 138 | if (value >= 0) |
| 139 | j = (j << 4) | value; |
| 140 | else |
| 141 | return -EINVAL; |
| 142 | |
| 143 | if (i % 2) { |
| 144 | wwn[i/2] = j & 0xff; |
| 145 | j = 0; |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | *nm = wwn_to_u64(wwn); |
| 150 | return 0; |
| 151 | } |
| 152 | |
| 153 | /* |
| 154 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: |
| 155 | * store_fc_host_vport_create() |
| 156 | */ |
| 157 | static int tcm_qla2xxx_npiv_parse_wwn( |
| 158 | const char *name, |
| 159 | size_t count, |
| 160 | u64 *wwpn, |
| 161 | u64 *wwnn) |
| 162 | { |
| 163 | unsigned int cnt = count; |
| 164 | int rc; |
| 165 | |
| 166 | *wwpn = 0; |
| 167 | *wwnn = 0; |
| 168 | |
| 169 | /* count may include a LF at end of string */ |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 170 | if (name[cnt-1] == '\n' || name[cnt-1] == 0) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 171 | cnt--; |
| 172 | |
| 173 | /* validate we have enough characters for WWPN */ |
| 174 | if ((cnt != (16+1+16)) || (name[16] != ':')) |
| 175 | return -EINVAL; |
| 176 | |
| 177 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); |
| 178 | if (rc != 0) |
| 179 | return rc; |
| 180 | |
| 181 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); |
| 182 | if (rc != 0) |
| 183 | return rc; |
| 184 | |
| 185 | return 0; |
| 186 | } |
| 187 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 188 | static char *tcm_qla2xxx_npiv_get_fabric_name(void) |
| 189 | { |
| 190 | return "qla2xxx_npiv"; |
| 191 | } |
| 192 | |
| 193 | static u8 tcm_qla2xxx_get_fabric_proto_ident(struct se_portal_group *se_tpg) |
| 194 | { |
| 195 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 196 | struct tcm_qla2xxx_tpg, se_tpg); |
| 197 | struct tcm_qla2xxx_lport *lport = tpg->lport; |
| 198 | u8 proto_id; |
| 199 | |
| 200 | switch (lport->lport_proto_id) { |
| 201 | case SCSI_PROTOCOL_FCP: |
| 202 | default: |
| 203 | proto_id = fc_get_fabric_proto_ident(se_tpg); |
| 204 | break; |
| 205 | } |
| 206 | |
| 207 | return proto_id; |
| 208 | } |
| 209 | |
| 210 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) |
| 211 | { |
| 212 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 213 | struct tcm_qla2xxx_tpg, se_tpg); |
| 214 | struct tcm_qla2xxx_lport *lport = tpg->lport; |
| 215 | |
Roland Dreier | c046aa0 | 2012-10-11 13:41:31 -0700 | [diff] [blame] | 216 | return lport->lport_naa_name; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 217 | } |
| 218 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 219 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) |
| 220 | { |
| 221 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 222 | struct tcm_qla2xxx_tpg, se_tpg); |
| 223 | return tpg->lport_tpgt; |
| 224 | } |
| 225 | |
| 226 | static u32 tcm_qla2xxx_get_default_depth(struct se_portal_group *se_tpg) |
| 227 | { |
| 228 | return 1; |
| 229 | } |
| 230 | |
| 231 | static u32 tcm_qla2xxx_get_pr_transport_id( |
| 232 | struct se_portal_group *se_tpg, |
| 233 | struct se_node_acl *se_nacl, |
| 234 | struct t10_pr_registration *pr_reg, |
| 235 | int *format_code, |
| 236 | unsigned char *buf) |
| 237 | { |
| 238 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 239 | struct tcm_qla2xxx_tpg, se_tpg); |
| 240 | struct tcm_qla2xxx_lport *lport = tpg->lport; |
| 241 | int ret = 0; |
| 242 | |
| 243 | switch (lport->lport_proto_id) { |
| 244 | case SCSI_PROTOCOL_FCP: |
| 245 | default: |
| 246 | ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg, |
| 247 | format_code, buf); |
| 248 | break; |
| 249 | } |
| 250 | |
| 251 | return ret; |
| 252 | } |
| 253 | |
| 254 | static u32 tcm_qla2xxx_get_pr_transport_id_len( |
| 255 | struct se_portal_group *se_tpg, |
| 256 | struct se_node_acl *se_nacl, |
| 257 | struct t10_pr_registration *pr_reg, |
| 258 | int *format_code) |
| 259 | { |
| 260 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 261 | struct tcm_qla2xxx_tpg, se_tpg); |
| 262 | struct tcm_qla2xxx_lport *lport = tpg->lport; |
| 263 | int ret = 0; |
| 264 | |
| 265 | switch (lport->lport_proto_id) { |
| 266 | case SCSI_PROTOCOL_FCP: |
| 267 | default: |
| 268 | ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, |
| 269 | format_code); |
| 270 | break; |
| 271 | } |
| 272 | |
| 273 | return ret; |
| 274 | } |
| 275 | |
| 276 | static char *tcm_qla2xxx_parse_pr_out_transport_id( |
| 277 | struct se_portal_group *se_tpg, |
| 278 | const char *buf, |
| 279 | u32 *out_tid_len, |
| 280 | char **port_nexus_ptr) |
| 281 | { |
| 282 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 283 | struct tcm_qla2xxx_tpg, se_tpg); |
| 284 | struct tcm_qla2xxx_lport *lport = tpg->lport; |
| 285 | char *tid = NULL; |
| 286 | |
| 287 | switch (lport->lport_proto_id) { |
| 288 | case SCSI_PROTOCOL_FCP: |
| 289 | default: |
| 290 | tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, |
| 291 | port_nexus_ptr); |
| 292 | break; |
| 293 | } |
| 294 | |
| 295 | return tid; |
| 296 | } |
| 297 | |
| 298 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) |
| 299 | { |
| 300 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 301 | struct tcm_qla2xxx_tpg, se_tpg); |
| 302 | |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 303 | return tpg->tpg_attrib.generate_node_acls; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 304 | } |
| 305 | |
| 306 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) |
| 307 | { |
| 308 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 309 | struct tcm_qla2xxx_tpg, se_tpg); |
| 310 | |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 311 | return tpg->tpg_attrib.cache_dynamic_acls; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 312 | } |
| 313 | |
| 314 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) |
| 315 | { |
| 316 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 317 | struct tcm_qla2xxx_tpg, se_tpg); |
| 318 | |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 319 | return tpg->tpg_attrib.demo_mode_write_protect; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) |
| 323 | { |
| 324 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 325 | struct tcm_qla2xxx_tpg, se_tpg); |
| 326 | |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 327 | return tpg->tpg_attrib.prod_mode_write_protect; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 328 | } |
| 329 | |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 330 | static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) |
| 331 | { |
| 332 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 333 | struct tcm_qla2xxx_tpg, se_tpg); |
| 334 | |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 335 | return tpg->tpg_attrib.demo_mode_login_only; |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 336 | } |
| 337 | |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 338 | static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg) |
| 339 | { |
| 340 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 341 | struct tcm_qla2xxx_tpg, se_tpg); |
| 342 | |
| 343 | return tpg->tpg_attrib.fabric_prot_type; |
| 344 | } |
| 345 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 346 | static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl( |
| 347 | struct se_portal_group *se_tpg) |
| 348 | { |
| 349 | struct tcm_qla2xxx_nacl *nacl; |
| 350 | |
| 351 | nacl = kzalloc(sizeof(struct tcm_qla2xxx_nacl), GFP_KERNEL); |
| 352 | if (!nacl) { |
Masanari Iida | 6efb3c0 | 2012-10-26 22:10:54 +0900 | [diff] [blame] | 353 | pr_err("Unable to allocate struct tcm_qla2xxx_nacl\n"); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 354 | return NULL; |
| 355 | } |
| 356 | |
| 357 | return &nacl->se_node_acl; |
| 358 | } |
| 359 | |
| 360 | static void tcm_qla2xxx_release_fabric_acl( |
| 361 | struct se_portal_group *se_tpg, |
| 362 | struct se_node_acl *se_nacl) |
| 363 | { |
| 364 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, |
| 365 | struct tcm_qla2xxx_nacl, se_node_acl); |
| 366 | kfree(nacl); |
| 367 | } |
| 368 | |
| 369 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) |
| 370 | { |
| 371 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 372 | struct tcm_qla2xxx_tpg, se_tpg); |
| 373 | |
| 374 | return tpg->lport_tpgt; |
| 375 | } |
| 376 | |
| 377 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) |
| 378 | { |
| 379 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, |
| 380 | struct qla_tgt_mgmt_cmd, free_work); |
| 381 | |
| 382 | transport_generic_free_cmd(&mcmd->se_cmd, 0); |
| 383 | } |
| 384 | |
| 385 | /* |
| 386 | * Called from qla_target_template->free_mcmd(), and will call |
| 387 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops |
| 388 | * release callback. qla_hw_data->hardware_lock is expected to be held |
| 389 | */ |
| 390 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) |
| 391 | { |
| 392 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); |
| 393 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); |
| 394 | } |
| 395 | |
| 396 | static void tcm_qla2xxx_complete_free(struct work_struct *work) |
| 397 | { |
| 398 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); |
| 399 | |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 400 | cmd->cmd_in_wq = 0; |
| 401 | |
| 402 | WARN_ON(cmd->cmd_flags & BIT_16); |
| 403 | |
| 404 | cmd->cmd_flags |= BIT_16; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 405 | transport_generic_free_cmd(&cmd->se_cmd, 0); |
| 406 | } |
| 407 | |
| 408 | /* |
| 409 | * Called from qla_target_template->free_cmd(), and will call |
| 410 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops |
| 411 | * release callback. qla_hw_data->hardware_lock is expected to be held |
| 412 | */ |
| 413 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) |
| 414 | { |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 415 | cmd->cmd_in_wq = 1; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 416 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); |
| 417 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); |
| 418 | } |
| 419 | |
| 420 | /* |
| 421 | * Called from struct target_core_fabric_ops->check_stop_free() context |
| 422 | */ |
| 423 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) |
| 424 | { |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 425 | struct qla_tgt_cmd *cmd; |
| 426 | |
| 427 | if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) { |
| 428 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); |
| 429 | cmd->cmd_flags |= BIT_14; |
| 430 | } |
| 431 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 432 | return target_put_sess_cmd(se_cmd->se_sess, se_cmd); |
| 433 | } |
| 434 | |
| 435 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying |
| 436 | * fabric descriptor @se_cmd command to release |
| 437 | */ |
| 438 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) |
| 439 | { |
| 440 | struct qla_tgt_cmd *cmd; |
| 441 | |
| 442 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { |
| 443 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, |
| 444 | struct qla_tgt_mgmt_cmd, se_cmd); |
| 445 | qlt_free_mcmd(mcmd); |
| 446 | return; |
| 447 | } |
| 448 | |
| 449 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); |
| 450 | qlt_free_cmd(cmd); |
| 451 | } |
| 452 | |
| 453 | static int tcm_qla2xxx_shutdown_session(struct se_session *se_sess) |
| 454 | { |
| 455 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; |
| 456 | struct scsi_qla_host *vha; |
| 457 | unsigned long flags; |
| 458 | |
| 459 | BUG_ON(!sess); |
| 460 | vha = sess->vha; |
| 461 | |
| 462 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
Roland Dreier | 1c7b13f | 2012-07-16 11:04:42 -0700 | [diff] [blame] | 463 | target_sess_cmd_list_set_waiting(se_sess); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 464 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); |
| 465 | |
| 466 | return 1; |
| 467 | } |
| 468 | |
| 469 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) |
| 470 | { |
| 471 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; |
| 472 | struct scsi_qla_host *vha; |
| 473 | unsigned long flags; |
| 474 | |
| 475 | BUG_ON(!sess); |
| 476 | vha = sess->vha; |
| 477 | |
| 478 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
| 479 | qlt_unreg_sess(sess); |
| 480 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); |
| 481 | } |
| 482 | |
| 483 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) |
| 484 | { |
| 485 | return 0; |
| 486 | } |
| 487 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 488 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) |
| 489 | { |
| 490 | struct qla_tgt_cmd *cmd = container_of(se_cmd, |
| 491 | struct qla_tgt_cmd, se_cmd); |
| 492 | |
| 493 | cmd->bufflen = se_cmd->data_length; |
Nicholas Bellinger | b3faa2e | 2013-08-21 14:54:54 -0700 | [diff] [blame] | 494 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 495 | |
| 496 | cmd->sg_cnt = se_cmd->t_data_nents; |
| 497 | cmd->sg = se_cmd->t_data_sg; |
| 498 | |
Quinn Tran | f83adb6 | 2014-04-11 16:54:43 -0400 | [diff] [blame] | 499 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
| 500 | cmd->prot_sg = se_cmd->t_prot_sg; |
| 501 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; |
| 502 | se_cmd->pi_err = 0; |
| 503 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 504 | /* |
| 505 | * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup |
| 506 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. |
| 507 | */ |
| 508 | return qlt_rdy_to_xfer(cmd); |
| 509 | } |
| 510 | |
| 511 | static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) |
| 512 | { |
| 513 | unsigned long flags; |
| 514 | /* |
| 515 | * Check for WRITE_PENDING status to determine if we need to wait for |
| 516 | * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). |
| 517 | */ |
| 518 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); |
| 519 | if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || |
| 520 | se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { |
| 521 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); |
| 522 | wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, |
| 523 | 3000); |
| 524 | return 0; |
| 525 | } |
| 526 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); |
| 527 | |
| 528 | return 0; |
| 529 | } |
| 530 | |
| 531 | static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) |
| 532 | { |
| 533 | return; |
| 534 | } |
| 535 | |
| 536 | static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd) |
| 537 | { |
Himanshu Madhani | dd9c4ef | 2014-09-25 06:14:50 -0400 | [diff] [blame] | 538 | struct qla_tgt_cmd *cmd; |
| 539 | |
| 540 | /* check for task mgmt cmd */ |
| 541 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) |
| 542 | return 0xffffffff; |
| 543 | |
| 544 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 545 | |
| 546 | return cmd->tag; |
| 547 | } |
| 548 | |
| 549 | static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) |
| 550 | { |
| 551 | return 0; |
| 552 | } |
| 553 | |
| 554 | /* |
| 555 | * Called from process context in qla_target.c:qlt_do_work() code |
| 556 | */ |
| 557 | static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, |
| 558 | unsigned char *cdb, uint32_t data_length, int fcp_task_attr, |
| 559 | int data_dir, int bidi) |
| 560 | { |
| 561 | struct se_cmd *se_cmd = &cmd->se_cmd; |
| 562 | struct se_session *se_sess; |
| 563 | struct qla_tgt_sess *sess; |
| 564 | int flags = TARGET_SCF_ACK_KREF; |
| 565 | |
| 566 | if (bidi) |
| 567 | flags |= TARGET_SCF_BIDI_OP; |
| 568 | |
| 569 | sess = cmd->sess; |
| 570 | if (!sess) { |
| 571 | pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n"); |
| 572 | return -EINVAL; |
| 573 | } |
| 574 | |
| 575 | se_sess = sess->se_sess; |
| 576 | if (!se_sess) { |
| 577 | pr_err("Unable to locate active struct se_session\n"); |
| 578 | return -EINVAL; |
| 579 | } |
| 580 | |
Roland Dreier | d6dfc86 | 2012-07-16 11:04:39 -0700 | [diff] [blame] | 581 | return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0], |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 582 | cmd->unpacked_lun, data_length, fcp_task_attr, |
| 583 | data_dir, flags); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 584 | } |
| 585 | |
Christoph Hellwig | 43381ce | 2012-07-08 15:58:44 -0400 | [diff] [blame] | 586 | static void tcm_qla2xxx_handle_data_work(struct work_struct *work) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 587 | { |
| 588 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 589 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 590 | /* |
| 591 | * Ensure that the complete FCP WRITE payload has been received. |
| 592 | * Otherwise return an exception via CHECK_CONDITION status. |
| 593 | */ |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 594 | cmd->cmd_in_wq = 0; |
| 595 | cmd->cmd_flags |= BIT_11; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 596 | if (!cmd->write_data_transferred) { |
| 597 | /* |
| 598 | * Check if se_cmd has already been aborted via LUN_RESET, and |
| 599 | * waiting upon completion in tcm_qla2xxx_write_pending_status() |
| 600 | */ |
Christoph Hellwig | 43381ce | 2012-07-08 15:58:44 -0400 | [diff] [blame] | 601 | if (cmd->se_cmd.transport_state & CMD_T_ABORTED) { |
| 602 | complete(&cmd->se_cmd.t_transport_stop_comp); |
| 603 | return; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 604 | } |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 605 | |
Quinn Tran | f83adb6 | 2014-04-11 16:54:43 -0400 | [diff] [blame] | 606 | if (cmd->se_cmd.pi_err) |
| 607 | transport_generic_request_failure(&cmd->se_cmd, |
| 608 | cmd->se_cmd.pi_err); |
| 609 | else |
| 610 | transport_generic_request_failure(&cmd->se_cmd, |
| 611 | TCM_CHECK_CONDITION_ABORT_CMD); |
| 612 | |
Christoph Hellwig | 43381ce | 2012-07-08 15:58:44 -0400 | [diff] [blame] | 613 | return; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 614 | } |
Christoph Hellwig | 43381ce | 2012-07-08 15:58:44 -0400 | [diff] [blame] | 615 | |
| 616 | return target_execute_cmd(&cmd->se_cmd); |
| 617 | } |
| 618 | |
| 619 | /* |
| 620 | * Called from qla_target.c:qlt_do_ctio_completion() |
| 621 | */ |
| 622 | static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) |
| 623 | { |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 624 | cmd->cmd_flags |= BIT_10; |
| 625 | cmd->cmd_in_wq = 1; |
Christoph Hellwig | 43381ce | 2012-07-08 15:58:44 -0400 | [diff] [blame] | 626 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); |
| 627 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 628 | } |
| 629 | |
Quinn Tran | f83adb6 | 2014-04-11 16:54:43 -0400 | [diff] [blame] | 630 | static void tcm_qla2xxx_handle_dif_work(struct work_struct *work) |
| 631 | { |
| 632 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); |
| 633 | |
| 634 | /* take an extra kref to prevent cmd free too early. |
| 635 | * need to wait for SCSI status/check condition to |
| 636 | * finish responding generate by transport_generic_request_failure. |
| 637 | */ |
| 638 | kref_get(&cmd->se_cmd.cmd_kref); |
| 639 | transport_generic_request_failure(&cmd->se_cmd, cmd->se_cmd.pi_err); |
| 640 | } |
| 641 | |
| 642 | /* |
| 643 | * Called from qla_target.c:qlt_do_ctio_completion() |
| 644 | */ |
| 645 | static void tcm_qla2xxx_handle_dif_err(struct qla_tgt_cmd *cmd) |
| 646 | { |
| 647 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_dif_work); |
| 648 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); |
| 649 | } |
| 650 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 651 | /* |
| 652 | * Called from qla_target.c:qlt_issue_task_mgmt() |
| 653 | */ |
Roland Dreier | 9389c3c | 2012-06-11 18:31:30 -0700 | [diff] [blame] | 654 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun, |
| 655 | uint8_t tmr_func, uint32_t tag) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 656 | { |
| 657 | struct qla_tgt_sess *sess = mcmd->sess; |
| 658 | struct se_cmd *se_cmd = &mcmd->se_cmd; |
| 659 | |
| 660 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, |
| 661 | tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF); |
| 662 | } |
| 663 | |
| 664 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) |
| 665 | { |
| 666 | struct qla_tgt_cmd *cmd = container_of(se_cmd, |
| 667 | struct qla_tgt_cmd, se_cmd); |
| 668 | |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 669 | cmd->cmd_flags |= BIT_4; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 670 | cmd->bufflen = se_cmd->data_length; |
Nicholas Bellinger | b3faa2e | 2013-08-21 14:54:54 -0700 | [diff] [blame] | 671 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 672 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); |
| 673 | |
| 674 | cmd->sg_cnt = se_cmd->t_data_nents; |
| 675 | cmd->sg = se_cmd->t_data_sg; |
| 676 | cmd->offset = 0; |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 677 | cmd->cmd_flags |= BIT_3; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 678 | |
Quinn Tran | f83adb6 | 2014-04-11 16:54:43 -0400 | [diff] [blame] | 679 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
| 680 | cmd->prot_sg = se_cmd->t_prot_sg; |
| 681 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; |
| 682 | se_cmd->pi_err = 0; |
| 683 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 684 | /* |
| 685 | * Now queue completed DATA_IN the qla2xxx LLD and response ring |
| 686 | */ |
| 687 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, |
| 688 | se_cmd->scsi_status); |
| 689 | } |
| 690 | |
| 691 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) |
| 692 | { |
| 693 | struct qla_tgt_cmd *cmd = container_of(se_cmd, |
| 694 | struct qla_tgt_cmd, se_cmd); |
| 695 | int xmit_type = QLA_TGT_XMIT_STATUS; |
| 696 | |
| 697 | cmd->bufflen = se_cmd->data_length; |
| 698 | cmd->sg = NULL; |
| 699 | cmd->sg_cnt = 0; |
| 700 | cmd->offset = 0; |
Nicholas Bellinger | b3faa2e | 2013-08-21 14:54:54 -0700 | [diff] [blame] | 701 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 702 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 703 | if (cmd->cmd_flags & BIT_5) { |
| 704 | pr_crit("Bit_5 already set for cmd = %p.\n", cmd); |
| 705 | dump_stack(); |
| 706 | } |
| 707 | cmd->cmd_flags |= BIT_5; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 708 | |
| 709 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { |
| 710 | /* |
| 711 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen |
| 712 | * for qla_tgt_xmit_response LLD code |
| 713 | */ |
Roland Dreier | b5aff3d | 2013-06-05 09:54:17 -0700 | [diff] [blame] | 714 | if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { |
| 715 | se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT; |
| 716 | se_cmd->residual_count = 0; |
| 717 | } |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 718 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; |
Roland Dreier | b5aff3d | 2013-06-05 09:54:17 -0700 | [diff] [blame] | 719 | se_cmd->residual_count += se_cmd->data_length; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 720 | |
| 721 | cmd->bufflen = 0; |
| 722 | } |
| 723 | /* |
| 724 | * Now queue status response to qla2xxx LLD code and response ring |
| 725 | */ |
| 726 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); |
| 727 | } |
| 728 | |
Joern Engel | b79fafa | 2013-07-03 11:22:17 -0400 | [diff] [blame] | 729 | static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 730 | { |
| 731 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; |
| 732 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, |
| 733 | struct qla_tgt_mgmt_cmd, se_cmd); |
| 734 | |
| 735 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", |
| 736 | mcmd, se_tmr->function, se_tmr->response); |
| 737 | /* |
| 738 | * Do translation between TCM TM response codes and |
| 739 | * QLA2xxx FC TM response codes. |
| 740 | */ |
| 741 | switch (se_tmr->response) { |
| 742 | case TMR_FUNCTION_COMPLETE: |
| 743 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; |
| 744 | break; |
| 745 | case TMR_TASK_DOES_NOT_EXIST: |
| 746 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; |
| 747 | break; |
| 748 | case TMR_FUNCTION_REJECTED: |
| 749 | mcmd->fc_tm_rsp = FC_TM_REJECT; |
| 750 | break; |
| 751 | case TMR_LUN_DOES_NOT_EXIST: |
| 752 | default: |
| 753 | mcmd->fc_tm_rsp = FC_TM_FAILED; |
| 754 | break; |
| 755 | } |
| 756 | /* |
| 757 | * Queue the TM response to QLA2xxx LLD to build a |
| 758 | * CTIO response packet. |
| 759 | */ |
| 760 | qlt_xmit_tm_rsp(mcmd); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 761 | } |
| 762 | |
Nicholas Bellinger | 131e6ab | 2014-03-22 14:55:56 -0700 | [diff] [blame] | 763 | static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) |
| 764 | { |
| 765 | struct qla_tgt_cmd *cmd = container_of(se_cmd, |
| 766 | struct qla_tgt_cmd, se_cmd); |
| 767 | struct scsi_qla_host *vha = cmd->vha; |
| 768 | struct qla_hw_data *ha = vha->hw; |
| 769 | |
| 770 | if (!cmd->sg_mapped) |
| 771 | return; |
| 772 | |
| 773 | pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction); |
| 774 | cmd->sg_mapped = 0; |
| 775 | } |
| 776 | |
Nicholas Bellinger | f2d5d9b | 2012-05-18 15:37:53 -0700 | [diff] [blame] | 777 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, |
| 778 | struct tcm_qla2xxx_nacl *, struct qla_tgt_sess *); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 779 | /* |
| 780 | * Expected to be called with struct qla_hw_data->hardware_lock held |
| 781 | */ |
| 782 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess) |
| 783 | { |
| 784 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
| 785 | struct se_portal_group *se_tpg = se_nacl->se_tpg; |
| 786 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; |
| 787 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, |
| 788 | struct tcm_qla2xxx_lport, lport_wwn); |
| 789 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, |
| 790 | struct tcm_qla2xxx_nacl, se_node_acl); |
| 791 | void *node; |
| 792 | |
| 793 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); |
| 794 | |
| 795 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); |
Joern Engel | f4c24db1 | 2014-10-03 14:35:56 -0700 | [diff] [blame] | 796 | if (WARN_ON(node && (node != se_nacl))) { |
| 797 | /* |
| 798 | * The nacl no longer matches what we think it should be. |
| 799 | * Most likely a new dynamic acl has been added while |
| 800 | * someone dropped the hardware lock. It clearly is a |
| 801 | * bug elsewhere, but this bit can't make things worse. |
| 802 | */ |
| 803 | btree_insert32(&lport->lport_fcport_map, nacl->nport_id, |
| 804 | node, GFP_ATOMIC); |
| 805 | } |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 806 | |
| 807 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", |
| 808 | se_nacl, nacl->nport_wwnn, nacl->nport_id); |
Nicholas Bellinger | f2d5d9b | 2012-05-18 15:37:53 -0700 | [diff] [blame] | 809 | /* |
| 810 | * Now clear the se_nacl and session pointers from our HW lport lookup |
| 811 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. |
| 812 | * |
| 813 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> |
| 814 | * target_wait_for_sess_cmds() before the session waits for outstanding |
| 815 | * I/O to complete, to avoid a race between session shutdown execution |
| 816 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. |
| 817 | */ |
| 818 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 819 | } |
| 820 | |
Joern Engel | aaf68b7 | 2012-05-18 13:58:23 -0700 | [diff] [blame] | 821 | static void tcm_qla2xxx_release_session(struct kref *kref) |
| 822 | { |
| 823 | struct se_session *se_sess = container_of(kref, |
| 824 | struct se_session, sess_kref); |
| 825 | |
| 826 | qlt_unreg_sess(se_sess->fabric_sess_ptr); |
| 827 | } |
| 828 | |
| 829 | static void tcm_qla2xxx_put_session(struct se_session *se_sess) |
| 830 | { |
| 831 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; |
| 832 | struct qla_hw_data *ha = sess->vha->hw; |
| 833 | unsigned long flags; |
| 834 | |
| 835 | spin_lock_irqsave(&ha->hardware_lock, flags); |
| 836 | kref_put(&se_sess->sess_kref, tcm_qla2xxx_release_session); |
| 837 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| 838 | } |
| 839 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 840 | static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess) |
| 841 | { |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 842 | if (!sess) |
| 843 | return; |
| 844 | |
Jörn Engel | 08234e3 | 2013-06-12 16:27:54 -0400 | [diff] [blame] | 845 | assert_spin_locked(&sess->vha->hw->hardware_lock); |
| 846 | kref_put(&sess->se_sess->sess_kref, tcm_qla2xxx_release_session); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 847 | } |
| 848 | |
| 849 | static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess) |
| 850 | { |
Jörn Engel | 08234e3 | 2013-06-12 16:27:54 -0400 | [diff] [blame] | 851 | assert_spin_locked(&sess->vha->hw->hardware_lock); |
| 852 | target_sess_cmd_list_set_waiting(sess->se_sess); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 853 | } |
| 854 | |
| 855 | static struct se_node_acl *tcm_qla2xxx_make_nodeacl( |
| 856 | struct se_portal_group *se_tpg, |
| 857 | struct config_group *group, |
| 858 | const char *name) |
| 859 | { |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 860 | struct se_node_acl *se_nacl, *se_nacl_new; |
| 861 | struct tcm_qla2xxx_nacl *nacl; |
| 862 | u64 wwnn; |
| 863 | u32 qla2xxx_nexus_depth; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 864 | |
| 865 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) |
| 866 | return ERR_PTR(-EINVAL); |
| 867 | |
| 868 | se_nacl_new = tcm_qla2xxx_alloc_fabric_acl(se_tpg); |
| 869 | if (!se_nacl_new) |
| 870 | return ERR_PTR(-ENOMEM); |
| 871 | /* #warning FIXME: Hardcoded qla2xxx_nexus depth in tcm_qla2xxx_make_nodeacl */ |
| 872 | qla2xxx_nexus_depth = 1; |
| 873 | |
| 874 | /* |
| 875 | * se_nacl_new may be released by core_tpg_add_initiator_node_acl() |
| 876 | * when converting a NodeACL from demo mode -> explict |
| 877 | */ |
| 878 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, |
| 879 | name, qla2xxx_nexus_depth); |
| 880 | if (IS_ERR(se_nacl)) { |
| 881 | tcm_qla2xxx_release_fabric_acl(se_tpg, se_nacl_new); |
| 882 | return se_nacl; |
| 883 | } |
| 884 | /* |
| 885 | * Locate our struct tcm_qla2xxx_nacl and set the FC Nport WWPN |
| 886 | */ |
| 887 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); |
| 888 | nacl->nport_wwnn = wwnn; |
| 889 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 890 | |
| 891 | return se_nacl; |
| 892 | } |
| 893 | |
| 894 | static void tcm_qla2xxx_drop_nodeacl(struct se_node_acl *se_acl) |
| 895 | { |
| 896 | struct se_portal_group *se_tpg = se_acl->se_tpg; |
| 897 | struct tcm_qla2xxx_nacl *nacl = container_of(se_acl, |
| 898 | struct tcm_qla2xxx_nacl, se_node_acl); |
| 899 | |
| 900 | core_tpg_del_initiator_node_acl(se_tpg, se_acl, 1); |
| 901 | kfree(nacl); |
| 902 | } |
| 903 | |
| 904 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ |
| 905 | |
| 906 | #define DEF_QLA_TPG_ATTRIB(name) \ |
| 907 | \ |
| 908 | static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \ |
| 909 | struct se_portal_group *se_tpg, \ |
| 910 | char *page) \ |
| 911 | { \ |
| 912 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
| 913 | struct tcm_qla2xxx_tpg, se_tpg); \ |
| 914 | \ |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 915 | return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 916 | } \ |
| 917 | \ |
| 918 | static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \ |
| 919 | struct se_portal_group *se_tpg, \ |
| 920 | const char *page, \ |
| 921 | size_t count) \ |
| 922 | { \ |
| 923 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
| 924 | struct tcm_qla2xxx_tpg, se_tpg); \ |
| 925 | unsigned long val; \ |
| 926 | int ret; \ |
| 927 | \ |
| 928 | ret = kstrtoul(page, 0, &val); \ |
| 929 | if (ret < 0) { \ |
| 930 | pr_err("kstrtoul() failed with" \ |
| 931 | " ret: %d\n", ret); \ |
| 932 | return -EINVAL; \ |
| 933 | } \ |
| 934 | ret = tcm_qla2xxx_set_attrib_##name(tpg, val); \ |
| 935 | \ |
| 936 | return (!ret) ? count : -EINVAL; \ |
| 937 | } |
| 938 | |
| 939 | #define DEF_QLA_TPG_ATTR_BOOL(_name) \ |
| 940 | \ |
| 941 | static int tcm_qla2xxx_set_attrib_##_name( \ |
| 942 | struct tcm_qla2xxx_tpg *tpg, \ |
| 943 | unsigned long val) \ |
| 944 | { \ |
| 945 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ |
| 946 | \ |
| 947 | if ((val != 0) && (val != 1)) { \ |
| 948 | pr_err("Illegal boolean value %lu\n", val); \ |
| 949 | return -EINVAL; \ |
| 950 | } \ |
| 951 | \ |
| 952 | a->_name = val; \ |
| 953 | return 0; \ |
| 954 | } |
| 955 | |
| 956 | #define QLA_TPG_ATTR(_name, _mode) \ |
| 957 | TF_TPG_ATTRIB_ATTR(tcm_qla2xxx, _name, _mode); |
| 958 | |
| 959 | /* |
| 960 | * Define tcm_qla2xxx_tpg_attrib_s_generate_node_acls |
| 961 | */ |
| 962 | DEF_QLA_TPG_ATTR_BOOL(generate_node_acls); |
| 963 | DEF_QLA_TPG_ATTRIB(generate_node_acls); |
| 964 | QLA_TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); |
| 965 | |
| 966 | /* |
| 967 | Define tcm_qla2xxx_attrib_s_cache_dynamic_acls |
| 968 | */ |
| 969 | DEF_QLA_TPG_ATTR_BOOL(cache_dynamic_acls); |
| 970 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); |
| 971 | QLA_TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); |
| 972 | |
| 973 | /* |
| 974 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_write_protect |
| 975 | */ |
| 976 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_write_protect); |
| 977 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); |
| 978 | QLA_TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); |
| 979 | |
| 980 | /* |
| 981 | * Define tcm_qla2xxx_tpg_attrib_s_prod_mode_write_protect |
| 982 | */ |
| 983 | DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect); |
| 984 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); |
| 985 | QLA_TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); |
| 986 | |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 987 | /* |
| 988 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_login_only |
| 989 | */ |
| 990 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_login_only); |
| 991 | DEF_QLA_TPG_ATTRIB(demo_mode_login_only); |
| 992 | QLA_TPG_ATTR(demo_mode_login_only, S_IRUGO | S_IWUSR); |
| 993 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 994 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { |
| 995 | &tcm_qla2xxx_tpg_attrib_generate_node_acls.attr, |
| 996 | &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr, |
| 997 | &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr, |
| 998 | &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr, |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 999 | &tcm_qla2xxx_tpg_attrib_demo_mode_login_only.attr, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1000 | NULL, |
| 1001 | }; |
| 1002 | |
| 1003 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ |
| 1004 | |
| 1005 | static ssize_t tcm_qla2xxx_tpg_show_enable( |
| 1006 | struct se_portal_group *se_tpg, |
| 1007 | char *page) |
| 1008 | { |
| 1009 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 1010 | struct tcm_qla2xxx_tpg, se_tpg); |
| 1011 | |
| 1012 | return snprintf(page, PAGE_SIZE, "%d\n", |
| 1013 | atomic_read(&tpg->lport_tpg_enabled)); |
| 1014 | } |
| 1015 | |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 1016 | static void tcm_qla2xxx_depend_tpg(struct work_struct *work) |
| 1017 | { |
| 1018 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, |
| 1019 | struct tcm_qla2xxx_tpg, tpg_base_work); |
| 1020 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; |
| 1021 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; |
| 1022 | |
| 1023 | if (!configfs_depend_item(se_tpg->se_tpg_tfo->tf_subsys, |
| 1024 | &se_tpg->tpg_group.cg_item)) { |
| 1025 | atomic_set(&base_tpg->lport_tpg_enabled, 1); |
| 1026 | qlt_enable_vha(base_vha); |
| 1027 | } |
| 1028 | complete(&base_tpg->tpg_base_comp); |
| 1029 | } |
| 1030 | |
| 1031 | static void tcm_qla2xxx_undepend_tpg(struct work_struct *work) |
| 1032 | { |
| 1033 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, |
| 1034 | struct tcm_qla2xxx_tpg, tpg_base_work); |
| 1035 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; |
| 1036 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; |
| 1037 | |
| 1038 | if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) { |
| 1039 | atomic_set(&base_tpg->lport_tpg_enabled, 0); |
| 1040 | configfs_undepend_item(se_tpg->se_tpg_tfo->tf_subsys, |
| 1041 | &se_tpg->tpg_group.cg_item); |
| 1042 | } |
| 1043 | complete(&base_tpg->tpg_base_comp); |
| 1044 | } |
| 1045 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1046 | static ssize_t tcm_qla2xxx_tpg_store_enable( |
| 1047 | struct se_portal_group *se_tpg, |
| 1048 | const char *page, |
| 1049 | size_t count) |
| 1050 | { |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1051 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 1052 | struct tcm_qla2xxx_tpg, se_tpg); |
| 1053 | unsigned long op; |
| 1054 | int rc; |
| 1055 | |
| 1056 | rc = kstrtoul(page, 0, &op); |
| 1057 | if (rc < 0) { |
| 1058 | pr_err("kstrtoul() returned %d\n", rc); |
| 1059 | return -EINVAL; |
| 1060 | } |
| 1061 | if ((op != 1) && (op != 0)) { |
| 1062 | pr_err("Illegal value for tpg_enable: %lu\n", op); |
| 1063 | return -EINVAL; |
| 1064 | } |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 1065 | if (op) { |
| 1066 | if (atomic_read(&tpg->lport_tpg_enabled)) |
| 1067 | return -EEXIST; |
| 1068 | |
| 1069 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg); |
| 1070 | } else { |
| 1071 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
| 1072 | return count; |
| 1073 | |
| 1074 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg); |
| 1075 | } |
| 1076 | init_completion(&tpg->tpg_base_comp); |
| 1077 | schedule_work(&tpg->tpg_base_work); |
| 1078 | wait_for_completion(&tpg->tpg_base_comp); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1079 | |
| 1080 | if (op) { |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 1081 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1082 | return -ENODEV; |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 1083 | } else { |
| 1084 | if (atomic_read(&tpg->lport_tpg_enabled)) |
| 1085 | return -EPERM; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1086 | } |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1087 | return count; |
| 1088 | } |
| 1089 | |
| 1090 | TF_TPG_BASE_ATTR(tcm_qla2xxx, enable, S_IRUGO | S_IWUSR); |
| 1091 | |
Nicholas Bellinger | d23dbaa | 2015-03-06 20:43:34 -0800 | [diff] [blame] | 1092 | static ssize_t tcm_qla2xxx_tpg_show_dynamic_sessions( |
| 1093 | struct se_portal_group *se_tpg, |
| 1094 | char *page) |
| 1095 | { |
| 1096 | return target_show_dynamic_sessions(se_tpg, page); |
| 1097 | } |
| 1098 | |
| 1099 | TF_TPG_BASE_ATTR_RO(tcm_qla2xxx, dynamic_sessions); |
| 1100 | |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 1101 | static ssize_t tcm_qla2xxx_tpg_store_fabric_prot_type( |
| 1102 | struct se_portal_group *se_tpg, |
| 1103 | const char *page, |
| 1104 | size_t count) |
| 1105 | { |
| 1106 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 1107 | struct tcm_qla2xxx_tpg, se_tpg); |
| 1108 | unsigned long val; |
| 1109 | int ret = kstrtoul(page, 0, &val); |
| 1110 | |
| 1111 | if (ret) { |
| 1112 | pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret); |
| 1113 | return ret; |
| 1114 | } |
| 1115 | if (val != 0 && val != 1 && val != 3) { |
| 1116 | pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val); |
| 1117 | return -EINVAL; |
| 1118 | } |
| 1119 | tpg->tpg_attrib.fabric_prot_type = val; |
| 1120 | |
| 1121 | return count; |
| 1122 | } |
| 1123 | |
| 1124 | static ssize_t tcm_qla2xxx_tpg_show_fabric_prot_type( |
| 1125 | struct se_portal_group *se_tpg, |
| 1126 | char *page) |
| 1127 | { |
| 1128 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 1129 | struct tcm_qla2xxx_tpg, se_tpg); |
| 1130 | |
| 1131 | return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type); |
| 1132 | } |
| 1133 | TF_TPG_BASE_ATTR(tcm_qla2xxx, fabric_prot_type, S_IRUGO | S_IWUSR); |
| 1134 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1135 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { |
| 1136 | &tcm_qla2xxx_tpg_enable.attr, |
Nicholas Bellinger | d23dbaa | 2015-03-06 20:43:34 -0800 | [diff] [blame] | 1137 | &tcm_qla2xxx_tpg_dynamic_sessions.attr, |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 1138 | &tcm_qla2xxx_tpg_fabric_prot_type.attr, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1139 | NULL, |
| 1140 | }; |
| 1141 | |
| 1142 | static struct se_portal_group *tcm_qla2xxx_make_tpg( |
| 1143 | struct se_wwn *wwn, |
| 1144 | struct config_group *group, |
| 1145 | const char *name) |
| 1146 | { |
| 1147 | struct tcm_qla2xxx_lport *lport = container_of(wwn, |
| 1148 | struct tcm_qla2xxx_lport, lport_wwn); |
| 1149 | struct tcm_qla2xxx_tpg *tpg; |
| 1150 | unsigned long tpgt; |
| 1151 | int ret; |
| 1152 | |
| 1153 | if (strstr(name, "tpgt_") != name) |
| 1154 | return ERR_PTR(-EINVAL); |
| 1155 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) |
| 1156 | return ERR_PTR(-EINVAL); |
| 1157 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1158 | if ((tpgt != 1)) { |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1159 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); |
| 1160 | return ERR_PTR(-ENOSYS); |
| 1161 | } |
| 1162 | |
| 1163 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); |
| 1164 | if (!tpg) { |
| 1165 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); |
| 1166 | return ERR_PTR(-ENOMEM); |
| 1167 | } |
| 1168 | tpg->lport = lport; |
| 1169 | tpg->lport_tpgt = tpgt; |
| 1170 | /* |
| 1171 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic |
| 1172 | * NodeACLs |
| 1173 | */ |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 1174 | tpg->tpg_attrib.generate_node_acls = 1; |
| 1175 | tpg->tpg_attrib.demo_mode_write_protect = 1; |
| 1176 | tpg->tpg_attrib.cache_dynamic_acls = 1; |
| 1177 | tpg->tpg_attrib.demo_mode_login_only = 1; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1178 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1179 | ret = core_tpg_register(&tcm_qla2xxx_ops, wwn, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1180 | &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); |
| 1181 | if (ret < 0) { |
| 1182 | kfree(tpg); |
| 1183 | return NULL; |
| 1184 | } |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1185 | |
| 1186 | lport->tpg_1 = tpg; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1187 | |
| 1188 | return &tpg->se_tpg; |
| 1189 | } |
| 1190 | |
| 1191 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) |
| 1192 | { |
| 1193 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 1194 | struct tcm_qla2xxx_tpg, se_tpg); |
| 1195 | struct tcm_qla2xxx_lport *lport = tpg->lport; |
| 1196 | struct scsi_qla_host *vha = lport->qla_vha; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1197 | /* |
| 1198 | * Call into qla2x_target.c LLD logic to shutdown the active |
| 1199 | * FC Nexuses and disable target mode operation for this qla_hw_data |
| 1200 | */ |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1201 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop) |
| 1202 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1203 | |
| 1204 | core_tpg_deregister(se_tpg); |
| 1205 | /* |
| 1206 | * Clear local TPG=1 pointer for non NPIV mode. |
| 1207 | */ |
Nicholas Bellinger | 394d62b | 2014-02-19 16:52:15 -0800 | [diff] [blame] | 1208 | lport->tpg_1 = NULL; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1209 | kfree(tpg); |
| 1210 | } |
| 1211 | |
Nicholas Bellinger | 394d62b | 2014-02-19 16:52:15 -0800 | [diff] [blame] | 1212 | static ssize_t tcm_qla2xxx_npiv_tpg_show_enable( |
| 1213 | struct se_portal_group *se_tpg, |
| 1214 | char *page) |
| 1215 | { |
| 1216 | return tcm_qla2xxx_tpg_show_enable(se_tpg, page); |
| 1217 | } |
| 1218 | |
| 1219 | static ssize_t tcm_qla2xxx_npiv_tpg_store_enable( |
| 1220 | struct se_portal_group *se_tpg, |
| 1221 | const char *page, |
| 1222 | size_t count) |
| 1223 | { |
| 1224 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; |
| 1225 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, |
| 1226 | struct tcm_qla2xxx_lport, lport_wwn); |
| 1227 | struct scsi_qla_host *vha = lport->qla_vha; |
| 1228 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 1229 | struct tcm_qla2xxx_tpg, se_tpg); |
| 1230 | unsigned long op; |
| 1231 | int rc; |
| 1232 | |
| 1233 | rc = kstrtoul(page, 0, &op); |
| 1234 | if (rc < 0) { |
| 1235 | pr_err("kstrtoul() returned %d\n", rc); |
| 1236 | return -EINVAL; |
| 1237 | } |
| 1238 | if ((op != 1) && (op != 0)) { |
| 1239 | pr_err("Illegal value for tpg_enable: %lu\n", op); |
| 1240 | return -EINVAL; |
| 1241 | } |
| 1242 | if (op) { |
| 1243 | if (atomic_read(&tpg->lport_tpg_enabled)) |
| 1244 | return -EEXIST; |
| 1245 | |
| 1246 | atomic_set(&tpg->lport_tpg_enabled, 1); |
| 1247 | qlt_enable_vha(vha); |
| 1248 | } else { |
| 1249 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
| 1250 | return count; |
| 1251 | |
| 1252 | atomic_set(&tpg->lport_tpg_enabled, 0); |
| 1253 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); |
| 1254 | } |
| 1255 | |
| 1256 | return count; |
| 1257 | } |
| 1258 | |
| 1259 | TF_TPG_BASE_ATTR(tcm_qla2xxx_npiv, enable, S_IRUGO | S_IWUSR); |
| 1260 | |
| 1261 | static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { |
| 1262 | &tcm_qla2xxx_npiv_tpg_enable.attr, |
| 1263 | NULL, |
| 1264 | }; |
| 1265 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1266 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg( |
| 1267 | struct se_wwn *wwn, |
| 1268 | struct config_group *group, |
| 1269 | const char *name) |
| 1270 | { |
| 1271 | struct tcm_qla2xxx_lport *lport = container_of(wwn, |
| 1272 | struct tcm_qla2xxx_lport, lport_wwn); |
| 1273 | struct tcm_qla2xxx_tpg *tpg; |
| 1274 | unsigned long tpgt; |
| 1275 | int ret; |
| 1276 | |
| 1277 | if (strstr(name, "tpgt_") != name) |
| 1278 | return ERR_PTR(-EINVAL); |
| 1279 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) |
| 1280 | return ERR_PTR(-EINVAL); |
| 1281 | |
| 1282 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); |
| 1283 | if (!tpg) { |
| 1284 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); |
| 1285 | return ERR_PTR(-ENOMEM); |
| 1286 | } |
| 1287 | tpg->lport = lport; |
| 1288 | tpg->lport_tpgt = tpgt; |
| 1289 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1290 | /* |
| 1291 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic |
| 1292 | * NodeACLs |
| 1293 | */ |
| 1294 | tpg->tpg_attrib.generate_node_acls = 1; |
| 1295 | tpg->tpg_attrib.demo_mode_write_protect = 1; |
| 1296 | tpg->tpg_attrib.cache_dynamic_acls = 1; |
| 1297 | tpg->tpg_attrib.demo_mode_login_only = 1; |
| 1298 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1299 | ret = core_tpg_register(&tcm_qla2xxx_npiv_ops, wwn, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1300 | &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); |
| 1301 | if (ret < 0) { |
| 1302 | kfree(tpg); |
| 1303 | return NULL; |
| 1304 | } |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1305 | lport->tpg_1 = tpg; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1306 | return &tpg->se_tpg; |
| 1307 | } |
| 1308 | |
| 1309 | /* |
| 1310 | * Expected to be called with struct qla_hw_data->hardware_lock held |
| 1311 | */ |
| 1312 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id( |
| 1313 | scsi_qla_host_t *vha, |
| 1314 | const uint8_t *s_id) |
| 1315 | { |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1316 | struct tcm_qla2xxx_lport *lport; |
| 1317 | struct se_node_acl *se_nacl; |
| 1318 | struct tcm_qla2xxx_nacl *nacl; |
| 1319 | u32 key; |
| 1320 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1321 | lport = vha->vha_tgt.target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1322 | if (!lport) { |
| 1323 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); |
| 1324 | dump_stack(); |
| 1325 | return NULL; |
| 1326 | } |
| 1327 | |
| 1328 | key = (((unsigned long)s_id[0] << 16) | |
| 1329 | ((unsigned long)s_id[1] << 8) | |
| 1330 | (unsigned long)s_id[2]); |
| 1331 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); |
| 1332 | |
| 1333 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); |
| 1334 | if (!se_nacl) { |
| 1335 | pr_debug("Unable to locate s_id: 0x%06x\n", key); |
| 1336 | return NULL; |
| 1337 | } |
| 1338 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", |
| 1339 | se_nacl, se_nacl->initiatorname); |
| 1340 | |
| 1341 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); |
| 1342 | if (!nacl->qla_tgt_sess) { |
| 1343 | pr_err("Unable to locate struct qla_tgt_sess\n"); |
| 1344 | return NULL; |
| 1345 | } |
| 1346 | |
| 1347 | return nacl->qla_tgt_sess; |
| 1348 | } |
| 1349 | |
| 1350 | /* |
| 1351 | * Expected to be called with struct qla_hw_data->hardware_lock held |
| 1352 | */ |
| 1353 | static void tcm_qla2xxx_set_sess_by_s_id( |
| 1354 | struct tcm_qla2xxx_lport *lport, |
| 1355 | struct se_node_acl *new_se_nacl, |
| 1356 | struct tcm_qla2xxx_nacl *nacl, |
| 1357 | struct se_session *se_sess, |
| 1358 | struct qla_tgt_sess *qla_tgt_sess, |
| 1359 | uint8_t *s_id) |
| 1360 | { |
| 1361 | u32 key; |
| 1362 | void *slot; |
| 1363 | int rc; |
| 1364 | |
| 1365 | key = (((unsigned long)s_id[0] << 16) | |
| 1366 | ((unsigned long)s_id[1] << 8) | |
| 1367 | (unsigned long)s_id[2]); |
| 1368 | pr_debug("set_sess_by_s_id: %06x\n", key); |
| 1369 | |
| 1370 | slot = btree_lookup32(&lport->lport_fcport_map, key); |
| 1371 | if (!slot) { |
| 1372 | if (new_se_nacl) { |
| 1373 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); |
| 1374 | nacl->nport_id = key; |
| 1375 | rc = btree_insert32(&lport->lport_fcport_map, key, |
| 1376 | new_se_nacl, GFP_ATOMIC); |
| 1377 | if (rc) |
| 1378 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", |
| 1379 | (int)key); |
| 1380 | } else { |
| 1381 | pr_debug("Wiping nonexisting fc_port entry\n"); |
| 1382 | } |
| 1383 | |
| 1384 | qla_tgt_sess->se_sess = se_sess; |
| 1385 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1386 | return; |
| 1387 | } |
| 1388 | |
| 1389 | if (nacl->qla_tgt_sess) { |
| 1390 | if (new_se_nacl == NULL) { |
| 1391 | pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n"); |
| 1392 | btree_remove32(&lport->lport_fcport_map, key); |
| 1393 | nacl->qla_tgt_sess = NULL; |
| 1394 | return; |
| 1395 | } |
| 1396 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n"); |
| 1397 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); |
| 1398 | qla_tgt_sess->se_sess = se_sess; |
| 1399 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1400 | return; |
| 1401 | } |
| 1402 | |
| 1403 | if (new_se_nacl == NULL) { |
| 1404 | pr_debug("Clearing existing fc_port entry\n"); |
| 1405 | btree_remove32(&lport->lport_fcport_map, key); |
| 1406 | return; |
| 1407 | } |
| 1408 | |
| 1409 | pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n"); |
| 1410 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); |
| 1411 | qla_tgt_sess->se_sess = se_sess; |
| 1412 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1413 | |
| 1414 | pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n", |
| 1415 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); |
| 1416 | } |
| 1417 | |
| 1418 | /* |
| 1419 | * Expected to be called with struct qla_hw_data->hardware_lock held |
| 1420 | */ |
| 1421 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id( |
| 1422 | scsi_qla_host_t *vha, |
| 1423 | const uint16_t loop_id) |
| 1424 | { |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1425 | struct tcm_qla2xxx_lport *lport; |
| 1426 | struct se_node_acl *se_nacl; |
| 1427 | struct tcm_qla2xxx_nacl *nacl; |
| 1428 | struct tcm_qla2xxx_fc_loopid *fc_loopid; |
| 1429 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1430 | lport = vha->vha_tgt.target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1431 | if (!lport) { |
| 1432 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); |
| 1433 | dump_stack(); |
| 1434 | return NULL; |
| 1435 | } |
| 1436 | |
| 1437 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); |
| 1438 | |
| 1439 | fc_loopid = lport->lport_loopid_map + loop_id; |
| 1440 | se_nacl = fc_loopid->se_nacl; |
| 1441 | if (!se_nacl) { |
| 1442 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", |
| 1443 | loop_id); |
| 1444 | return NULL; |
| 1445 | } |
| 1446 | |
| 1447 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); |
| 1448 | |
| 1449 | if (!nacl->qla_tgt_sess) { |
| 1450 | pr_err("Unable to locate struct qla_tgt_sess\n"); |
| 1451 | return NULL; |
| 1452 | } |
| 1453 | |
| 1454 | return nacl->qla_tgt_sess; |
| 1455 | } |
| 1456 | |
| 1457 | /* |
| 1458 | * Expected to be called with struct qla_hw_data->hardware_lock held |
| 1459 | */ |
| 1460 | static void tcm_qla2xxx_set_sess_by_loop_id( |
| 1461 | struct tcm_qla2xxx_lport *lport, |
| 1462 | struct se_node_acl *new_se_nacl, |
| 1463 | struct tcm_qla2xxx_nacl *nacl, |
| 1464 | struct se_session *se_sess, |
| 1465 | struct qla_tgt_sess *qla_tgt_sess, |
| 1466 | uint16_t loop_id) |
| 1467 | { |
| 1468 | struct se_node_acl *saved_nacl; |
| 1469 | struct tcm_qla2xxx_fc_loopid *fc_loopid; |
| 1470 | |
| 1471 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); |
| 1472 | |
| 1473 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) |
| 1474 | lport->lport_loopid_map)[loop_id]; |
| 1475 | |
| 1476 | saved_nacl = fc_loopid->se_nacl; |
| 1477 | if (!saved_nacl) { |
| 1478 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); |
| 1479 | fc_loopid->se_nacl = new_se_nacl; |
| 1480 | if (qla_tgt_sess->se_sess != se_sess) |
| 1481 | qla_tgt_sess->se_sess = se_sess; |
| 1482 | if (nacl->qla_tgt_sess != qla_tgt_sess) |
| 1483 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1484 | return; |
| 1485 | } |
| 1486 | |
| 1487 | if (nacl->qla_tgt_sess) { |
| 1488 | if (new_se_nacl == NULL) { |
| 1489 | pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); |
| 1490 | fc_loopid->se_nacl = NULL; |
| 1491 | nacl->qla_tgt_sess = NULL; |
| 1492 | return; |
| 1493 | } |
| 1494 | |
| 1495 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); |
| 1496 | fc_loopid->se_nacl = new_se_nacl; |
| 1497 | if (qla_tgt_sess->se_sess != se_sess) |
| 1498 | qla_tgt_sess->se_sess = se_sess; |
| 1499 | if (nacl->qla_tgt_sess != qla_tgt_sess) |
| 1500 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1501 | return; |
| 1502 | } |
| 1503 | |
| 1504 | if (new_se_nacl == NULL) { |
| 1505 | pr_debug("Clearing fc_loopid->se_nacl\n"); |
| 1506 | fc_loopid->se_nacl = NULL; |
| 1507 | return; |
| 1508 | } |
| 1509 | |
| 1510 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n"); |
| 1511 | fc_loopid->se_nacl = new_se_nacl; |
| 1512 | if (qla_tgt_sess->se_sess != se_sess) |
| 1513 | qla_tgt_sess->se_sess = se_sess; |
| 1514 | if (nacl->qla_tgt_sess != qla_tgt_sess) |
| 1515 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1516 | |
| 1517 | pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n", |
| 1518 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); |
| 1519 | } |
| 1520 | |
Nicholas Bellinger | f2d5d9b | 2012-05-18 15:37:53 -0700 | [diff] [blame] | 1521 | /* |
| 1522 | * Should always be called with qla_hw_data->hardware_lock held. |
| 1523 | */ |
| 1524 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, |
| 1525 | struct tcm_qla2xxx_nacl *nacl, struct qla_tgt_sess *sess) |
| 1526 | { |
| 1527 | struct se_session *se_sess = sess->se_sess; |
| 1528 | unsigned char be_sid[3]; |
| 1529 | |
| 1530 | be_sid[0] = sess->s_id.b.domain; |
| 1531 | be_sid[1] = sess->s_id.b.area; |
| 1532 | be_sid[2] = sess->s_id.b.al_pa; |
| 1533 | |
| 1534 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, |
| 1535 | sess, be_sid); |
| 1536 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, |
| 1537 | sess, sess->loop_id); |
| 1538 | } |
| 1539 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1540 | static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess) |
| 1541 | { |
| 1542 | struct qla_tgt *tgt = sess->tgt; |
| 1543 | struct qla_hw_data *ha = tgt->ha; |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1544 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1545 | struct se_session *se_sess; |
| 1546 | struct se_node_acl *se_nacl; |
| 1547 | struct tcm_qla2xxx_lport *lport; |
| 1548 | struct tcm_qla2xxx_nacl *nacl; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1549 | |
| 1550 | BUG_ON(in_interrupt()); |
| 1551 | |
| 1552 | se_sess = sess->se_sess; |
| 1553 | if (!se_sess) { |
| 1554 | pr_err("struct qla_tgt_sess->se_sess is NULL\n"); |
| 1555 | dump_stack(); |
| 1556 | return; |
| 1557 | } |
| 1558 | se_nacl = se_sess->se_node_acl; |
| 1559 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); |
| 1560 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1561 | lport = vha->vha_tgt.target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1562 | if (!lport) { |
| 1563 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); |
| 1564 | dump_stack(); |
| 1565 | return; |
| 1566 | } |
Joern Engel | be646c2d | 2013-05-15 00:44:07 -0700 | [diff] [blame] | 1567 | target_wait_for_sess_cmds(se_sess); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1568 | |
| 1569 | transport_deregister_session_configfs(sess->se_sess); |
| 1570 | transport_deregister_session(sess->se_sess); |
| 1571 | } |
| 1572 | |
| 1573 | /* |
| 1574 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() |
| 1575 | * to locate struct se_node_acl |
| 1576 | */ |
| 1577 | static int tcm_qla2xxx_check_initiator_node_acl( |
| 1578 | scsi_qla_host_t *vha, |
| 1579 | unsigned char *fc_wwpn, |
| 1580 | void *qla_tgt_sess, |
| 1581 | uint8_t *s_id, |
| 1582 | uint16_t loop_id) |
| 1583 | { |
| 1584 | struct qla_hw_data *ha = vha->hw; |
| 1585 | struct tcm_qla2xxx_lport *lport; |
| 1586 | struct tcm_qla2xxx_tpg *tpg; |
| 1587 | struct tcm_qla2xxx_nacl *nacl; |
| 1588 | struct se_portal_group *se_tpg; |
| 1589 | struct se_node_acl *se_nacl; |
| 1590 | struct se_session *se_sess; |
| 1591 | struct qla_tgt_sess *sess = qla_tgt_sess; |
| 1592 | unsigned char port_name[36]; |
| 1593 | unsigned long flags; |
Nicholas Bellinger | 51a07f8 | 2014-05-23 02:00:56 -0700 | [diff] [blame] | 1594 | int num_tags = (ha->fw_xcb_count) ? ha->fw_xcb_count : |
| 1595 | TCM_QLA2XXX_DEFAULT_TAGS; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1596 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1597 | lport = vha->vha_tgt.target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1598 | if (!lport) { |
| 1599 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); |
| 1600 | dump_stack(); |
| 1601 | return -EINVAL; |
| 1602 | } |
| 1603 | /* |
| 1604 | * Locate the TPG=1 reference.. |
| 1605 | */ |
| 1606 | tpg = lport->tpg_1; |
| 1607 | if (!tpg) { |
| 1608 | pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n"); |
| 1609 | return -EINVAL; |
| 1610 | } |
| 1611 | se_tpg = &tpg->se_tpg; |
| 1612 | |
Nicholas Bellinger | 51a07f8 | 2014-05-23 02:00:56 -0700 | [diff] [blame] | 1613 | se_sess = transport_init_session_tags(num_tags, |
| 1614 | sizeof(struct qla_tgt_cmd), |
Nicholas Bellinger | 59bb0ff | 2015-02-08 12:49:46 -0800 | [diff] [blame] | 1615 | TARGET_PROT_ALL); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1616 | if (IS_ERR(se_sess)) { |
| 1617 | pr_err("Unable to initialize struct se_session\n"); |
| 1618 | return PTR_ERR(se_sess); |
| 1619 | } |
| 1620 | /* |
| 1621 | * Format the FCP Initiator port_name into colon seperated values to |
| 1622 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. |
| 1623 | */ |
| 1624 | memset(&port_name, 0, 36); |
Andy Shevchenko | 3c9786e | 2015-01-15 13:28:07 +0200 | [diff] [blame] | 1625 | snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1626 | /* |
| 1627 | * Locate our struct se_node_acl either from an explict NodeACL created |
| 1628 | * via ConfigFS, or via running in TPG demo mode. |
| 1629 | */ |
| 1630 | se_sess->se_node_acl = core_tpg_check_initiator_node_acl(se_tpg, |
| 1631 | port_name); |
| 1632 | if (!se_sess->se_node_acl) { |
| 1633 | transport_free_session(se_sess); |
| 1634 | return -EINVAL; |
| 1635 | } |
| 1636 | se_nacl = se_sess->se_node_acl; |
| 1637 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); |
| 1638 | /* |
| 1639 | * And now setup the new se_nacl and session pointers into our HW lport |
| 1640 | * mappings for fabric S_ID and LOOP_ID. |
| 1641 | */ |
| 1642 | spin_lock_irqsave(&ha->hardware_lock, flags); |
| 1643 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess, |
| 1644 | qla_tgt_sess, s_id); |
| 1645 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, se_sess, |
| 1646 | qla_tgt_sess, loop_id); |
| 1647 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| 1648 | /* |
| 1649 | * Finally register the new FC Nexus with TCM |
| 1650 | */ |
Bart Van Assche | 75c3d0b | 2015-03-19 22:25:16 -0700 | [diff] [blame] | 1651 | transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1652 | |
| 1653 | return 0; |
| 1654 | } |
| 1655 | |
Roland Dreier | c8292d1 | 2012-10-11 13:41:32 -0700 | [diff] [blame] | 1656 | static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id, |
| 1657 | uint16_t loop_id, bool conf_compl_supported) |
| 1658 | { |
| 1659 | struct qla_tgt *tgt = sess->tgt; |
| 1660 | struct qla_hw_data *ha = tgt->ha; |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1661 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
| 1662 | struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr; |
Roland Dreier | c8292d1 | 2012-10-11 13:41:32 -0700 | [diff] [blame] | 1663 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
| 1664 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, |
| 1665 | struct tcm_qla2xxx_nacl, se_node_acl); |
| 1666 | u32 key; |
| 1667 | |
| 1668 | |
| 1669 | if (sess->loop_id != loop_id || sess->s_id.b24 != s_id.b24) |
Oleksandr Khoshaba | 7b83355 | 2013-08-27 01:37:27 -0400 | [diff] [blame] | 1670 | pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", |
| 1671 | sess, sess->port_name, |
| 1672 | sess->loop_id, loop_id, sess->s_id.b.domain, |
| 1673 | sess->s_id.b.area, sess->s_id.b.al_pa, s_id.b.domain, |
| 1674 | s_id.b.area, s_id.b.al_pa); |
Roland Dreier | c8292d1 | 2012-10-11 13:41:32 -0700 | [diff] [blame] | 1675 | |
| 1676 | if (sess->loop_id != loop_id) { |
| 1677 | /* |
| 1678 | * Because we can shuffle loop IDs around and we |
| 1679 | * update different sessions non-atomically, we might |
| 1680 | * have overwritten this session's old loop ID |
| 1681 | * already, and we might end up overwriting some other |
| 1682 | * session that will be updated later. So we have to |
| 1683 | * be extra careful and we can't warn about those things... |
| 1684 | */ |
| 1685 | if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) |
| 1686 | lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; |
| 1687 | |
| 1688 | lport->lport_loopid_map[loop_id].se_nacl = se_nacl; |
| 1689 | |
| 1690 | sess->loop_id = loop_id; |
| 1691 | } |
| 1692 | |
| 1693 | if (sess->s_id.b24 != s_id.b24) { |
| 1694 | key = (((u32) sess->s_id.b.domain << 16) | |
| 1695 | ((u32) sess->s_id.b.area << 8) | |
| 1696 | ((u32) sess->s_id.b.al_pa)); |
| 1697 | |
| 1698 | if (btree_lookup32(&lport->lport_fcport_map, key)) |
| 1699 | WARN(btree_remove32(&lport->lport_fcport_map, key) != se_nacl, |
| 1700 | "Found wrong se_nacl when updating s_id %x:%x:%x\n", |
| 1701 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); |
| 1702 | else |
| 1703 | WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", |
| 1704 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); |
| 1705 | |
| 1706 | key = (((u32) s_id.b.domain << 16) | |
| 1707 | ((u32) s_id.b.area << 8) | |
| 1708 | ((u32) s_id.b.al_pa)); |
| 1709 | |
| 1710 | if (btree_lookup32(&lport->lport_fcport_map, key)) { |
| 1711 | WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", |
| 1712 | s_id.b.domain, s_id.b.area, s_id.b.al_pa); |
| 1713 | btree_update32(&lport->lport_fcport_map, key, se_nacl); |
| 1714 | } else { |
| 1715 | btree_insert32(&lport->lport_fcport_map, key, se_nacl, GFP_ATOMIC); |
| 1716 | } |
| 1717 | |
| 1718 | sess->s_id = s_id; |
| 1719 | nacl->nport_id = key; |
| 1720 | } |
| 1721 | |
| 1722 | sess->conf_compl_supported = conf_compl_supported; |
| 1723 | } |
| 1724 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1725 | /* |
| 1726 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. |
| 1727 | */ |
| 1728 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { |
| 1729 | .handle_cmd = tcm_qla2xxx_handle_cmd, |
| 1730 | .handle_data = tcm_qla2xxx_handle_data, |
Quinn Tran | f83adb6 | 2014-04-11 16:54:43 -0400 | [diff] [blame] | 1731 | .handle_dif_err = tcm_qla2xxx_handle_dif_err, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1732 | .handle_tmr = tcm_qla2xxx_handle_tmr, |
| 1733 | .free_cmd = tcm_qla2xxx_free_cmd, |
| 1734 | .free_mcmd = tcm_qla2xxx_free_mcmd, |
| 1735 | .free_session = tcm_qla2xxx_free_session, |
Roland Dreier | c8292d1 | 2012-10-11 13:41:32 -0700 | [diff] [blame] | 1736 | .update_sess = tcm_qla2xxx_update_sess, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1737 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, |
| 1738 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, |
| 1739 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, |
| 1740 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, |
| 1741 | .put_sess = tcm_qla2xxx_put_sess, |
| 1742 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, |
| 1743 | }; |
| 1744 | |
| 1745 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) |
| 1746 | { |
| 1747 | int rc; |
| 1748 | |
| 1749 | rc = btree_init32(&lport->lport_fcport_map); |
| 1750 | if (rc) { |
| 1751 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); |
| 1752 | return rc; |
| 1753 | } |
| 1754 | |
| 1755 | lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * |
| 1756 | 65536); |
| 1757 | if (!lport->lport_loopid_map) { |
| 1758 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", |
| 1759 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); |
| 1760 | btree_destroy32(&lport->lport_fcport_map); |
| 1761 | return -ENOMEM; |
| 1762 | } |
| 1763 | memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid) |
| 1764 | * 65536); |
| 1765 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", |
| 1766 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); |
| 1767 | return 0; |
| 1768 | } |
| 1769 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1770 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha, |
| 1771 | void *target_lport_ptr, |
| 1772 | u64 npiv_wwpn, u64 npiv_wwnn) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1773 | { |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1774 | struct qla_hw_data *ha = vha->hw; |
| 1775 | struct tcm_qla2xxx_lport *lport = |
| 1776 | (struct tcm_qla2xxx_lport *)target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1777 | /* |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1778 | * Setup tgt_ops, local pointer to vha and target_lport_ptr |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1779 | */ |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1780 | ha->tgt.tgt_ops = &tcm_qla2xxx_template; |
| 1781 | vha->vha_tgt.target_lport_ptr = target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1782 | lport->qla_vha = vha; |
| 1783 | |
| 1784 | return 0; |
| 1785 | } |
| 1786 | |
| 1787 | static struct se_wwn *tcm_qla2xxx_make_lport( |
| 1788 | struct target_fabric_configfs *tf, |
| 1789 | struct config_group *group, |
| 1790 | const char *name) |
| 1791 | { |
| 1792 | struct tcm_qla2xxx_lport *lport; |
| 1793 | u64 wwpn; |
| 1794 | int ret = -ENODEV; |
| 1795 | |
| 1796 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) |
| 1797 | return ERR_PTR(-EINVAL); |
| 1798 | |
| 1799 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); |
| 1800 | if (!lport) { |
| 1801 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); |
| 1802 | return ERR_PTR(-ENOMEM); |
| 1803 | } |
| 1804 | lport->lport_wwpn = wwpn; |
| 1805 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, |
| 1806 | wwpn); |
Roland Dreier | c046aa0 | 2012-10-11 13:41:31 -0700 | [diff] [blame] | 1807 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1808 | |
| 1809 | ret = tcm_qla2xxx_init_lport(lport); |
| 1810 | if (ret != 0) |
| 1811 | goto out; |
| 1812 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1813 | ret = qlt_lport_register(lport, wwpn, 0, 0, |
| 1814 | tcm_qla2xxx_lport_register_cb); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1815 | if (ret != 0) |
| 1816 | goto out_lport; |
| 1817 | |
| 1818 | return &lport->lport_wwn; |
| 1819 | out_lport: |
| 1820 | vfree(lport->lport_loopid_map); |
| 1821 | btree_destroy32(&lport->lport_fcport_map); |
| 1822 | out: |
| 1823 | kfree(lport); |
| 1824 | return ERR_PTR(ret); |
| 1825 | } |
| 1826 | |
| 1827 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) |
| 1828 | { |
| 1829 | struct tcm_qla2xxx_lport *lport = container_of(wwn, |
| 1830 | struct tcm_qla2xxx_lport, lport_wwn); |
| 1831 | struct scsi_qla_host *vha = lport->qla_vha; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1832 | struct se_node_acl *node; |
| 1833 | u32 key = 0; |
| 1834 | |
| 1835 | /* |
| 1836 | * Call into qla2x_target.c LLD logic to complete the |
| 1837 | * shutdown of struct qla_tgt after the call to |
| 1838 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. |
| 1839 | */ |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1840 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped) |
| 1841 | qlt_stop_phase2(vha->vha_tgt.qla_tgt); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1842 | |
| 1843 | qlt_lport_deregister(vha); |
| 1844 | |
| 1845 | vfree(lport->lport_loopid_map); |
| 1846 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) |
| 1847 | btree_remove32(&lport->lport_fcport_map, key); |
| 1848 | btree_destroy32(&lport->lport_fcport_map); |
| 1849 | kfree(lport); |
| 1850 | } |
| 1851 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1852 | static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha, |
| 1853 | void *target_lport_ptr, |
| 1854 | u64 npiv_wwpn, u64 npiv_wwnn) |
| 1855 | { |
| 1856 | struct fc_vport *vport; |
| 1857 | struct Scsi_Host *sh = base_vha->host; |
| 1858 | struct scsi_qla_host *npiv_vha; |
| 1859 | struct tcm_qla2xxx_lport *lport = |
| 1860 | (struct tcm_qla2xxx_lport *)target_lport_ptr; |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 1861 | struct tcm_qla2xxx_lport *base_lport = |
| 1862 | (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr; |
| 1863 | struct tcm_qla2xxx_tpg *base_tpg; |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1864 | struct fc_vport_identifiers vport_id; |
| 1865 | |
| 1866 | if (!qla_tgt_mode_enabled(base_vha)) { |
| 1867 | pr_err("qla2xxx base_vha not enabled for target mode\n"); |
| 1868 | return -EPERM; |
| 1869 | } |
| 1870 | |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 1871 | if (!base_lport || !base_lport->tpg_1 || |
| 1872 | !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) { |
| 1873 | pr_err("qla2xxx base_lport or tpg_1 not available\n"); |
| 1874 | return -EPERM; |
| 1875 | } |
| 1876 | base_tpg = base_lport->tpg_1; |
| 1877 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1878 | memset(&vport_id, 0, sizeof(vport_id)); |
| 1879 | vport_id.port_name = npiv_wwpn; |
| 1880 | vport_id.node_name = npiv_wwnn; |
| 1881 | vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; |
| 1882 | vport_id.vport_type = FC_PORTTYPE_NPIV; |
| 1883 | vport_id.disable = false; |
| 1884 | |
| 1885 | vport = fc_vport_create(sh, 0, &vport_id); |
| 1886 | if (!vport) { |
| 1887 | pr_err("fc_vport_create failed for qla2xxx_npiv\n"); |
| 1888 | return -ENODEV; |
| 1889 | } |
| 1890 | /* |
| 1891 | * Setup local pointer to NPIV vhba + target_lport_ptr |
| 1892 | */ |
| 1893 | npiv_vha = (struct scsi_qla_host *)vport->dd_data; |
| 1894 | npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr; |
| 1895 | lport->qla_vha = npiv_vha; |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1896 | scsi_host_get(npiv_vha->host); |
| 1897 | return 0; |
| 1898 | } |
| 1899 | |
| 1900 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1901 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( |
| 1902 | struct target_fabric_configfs *tf, |
| 1903 | struct config_group *group, |
| 1904 | const char *name) |
| 1905 | { |
| 1906 | struct tcm_qla2xxx_lport *lport; |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1907 | u64 phys_wwpn, npiv_wwpn, npiv_wwnn; |
| 1908 | char *p, tmp[128]; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1909 | int ret; |
| 1910 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1911 | snprintf(tmp, 128, "%s", name); |
| 1912 | |
| 1913 | p = strchr(tmp, '@'); |
| 1914 | if (!p) { |
| 1915 | pr_err("Unable to locate NPIV '@' seperator\n"); |
| 1916 | return ERR_PTR(-EINVAL); |
| 1917 | } |
| 1918 | *p++ = '\0'; |
| 1919 | |
| 1920 | if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0) |
| 1921 | return ERR_PTR(-EINVAL); |
| 1922 | |
| 1923 | if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1, |
| 1924 | &npiv_wwpn, &npiv_wwnn) < 0) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1925 | return ERR_PTR(-EINVAL); |
| 1926 | |
| 1927 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); |
| 1928 | if (!lport) { |
| 1929 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); |
| 1930 | return ERR_PTR(-ENOMEM); |
| 1931 | } |
| 1932 | lport->lport_npiv_wwpn = npiv_wwpn; |
| 1933 | lport->lport_npiv_wwnn = npiv_wwnn; |
Roland Dreier | c046aa0 | 2012-10-11 13:41:31 -0700 | [diff] [blame] | 1934 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1935 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1936 | ret = tcm_qla2xxx_init_lport(lport); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1937 | if (ret != 0) |
| 1938 | goto out; |
| 1939 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1940 | ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn, |
| 1941 | tcm_qla2xxx_lport_register_npiv_cb); |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1942 | if (ret != 0) |
| 1943 | goto out_lport; |
| 1944 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1945 | return &lport->lport_wwn; |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1946 | out_lport: |
| 1947 | vfree(lport->lport_loopid_map); |
| 1948 | btree_destroy32(&lport->lport_fcport_map); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1949 | out: |
| 1950 | kfree(lport); |
| 1951 | return ERR_PTR(ret); |
| 1952 | } |
| 1953 | |
| 1954 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) |
| 1955 | { |
| 1956 | struct tcm_qla2xxx_lport *lport = container_of(wwn, |
| 1957 | struct tcm_qla2xxx_lport, lport_wwn); |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1958 | struct scsi_qla_host *npiv_vha = lport->qla_vha; |
| 1959 | struct qla_hw_data *ha = npiv_vha->hw; |
| 1960 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); |
| 1961 | |
| 1962 | scsi_host_put(npiv_vha->host); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1963 | /* |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1964 | * Notify libfc that we want to release the vha->fc_vport |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1965 | */ |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1966 | fc_vport_terminate(npiv_vha->fc_vport); |
| 1967 | scsi_host_put(base_vha->host); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1968 | kfree(lport); |
| 1969 | } |
| 1970 | |
| 1971 | |
| 1972 | static ssize_t tcm_qla2xxx_wwn_show_attr_version( |
| 1973 | struct target_fabric_configfs *tf, |
| 1974 | char *page) |
| 1975 | { |
| 1976 | return sprintf(page, |
| 1977 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on " |
| 1978 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, |
| 1979 | utsname()->machine); |
| 1980 | } |
| 1981 | |
| 1982 | TF_WWN_ATTR_RO(tcm_qla2xxx, version); |
| 1983 | |
| 1984 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { |
| 1985 | &tcm_qla2xxx_wwn_version.attr, |
| 1986 | NULL, |
| 1987 | }; |
| 1988 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1989 | static const struct target_core_fabric_ops tcm_qla2xxx_ops = { |
| 1990 | .module = THIS_MODULE, |
| 1991 | .name = "qla2xxx", |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1992 | .get_fabric_name = tcm_qla2xxx_get_fabric_name, |
| 1993 | .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident, |
| 1994 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
| 1995 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
| 1996 | .tpg_get_default_depth = tcm_qla2xxx_get_default_depth, |
| 1997 | .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id, |
| 1998 | .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len, |
| 1999 | .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id, |
| 2000 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
| 2001 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, |
| 2002 | .tpg_check_demo_mode_write_protect = |
| 2003 | tcm_qla2xxx_check_demo_write_protect, |
| 2004 | .tpg_check_prod_mode_write_protect = |
| 2005 | tcm_qla2xxx_check_prod_write_protect, |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 2006 | .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only, |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 2007 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2008 | .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl, |
| 2009 | .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl, |
| 2010 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2011 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
| 2012 | .release_cmd = tcm_qla2xxx_release_cmd, |
Joern Engel | aaf68b7 | 2012-05-18 13:58:23 -0700 | [diff] [blame] | 2013 | .put_session = tcm_qla2xxx_put_session, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2014 | .shutdown_session = tcm_qla2xxx_shutdown_session, |
| 2015 | .close_session = tcm_qla2xxx_close_session, |
| 2016 | .sess_get_index = tcm_qla2xxx_sess_get_index, |
| 2017 | .sess_get_initiator_sid = NULL, |
| 2018 | .write_pending = tcm_qla2xxx_write_pending, |
| 2019 | .write_pending_status = tcm_qla2xxx_write_pending_status, |
| 2020 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, |
| 2021 | .get_task_tag = tcm_qla2xxx_get_task_tag, |
| 2022 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
| 2023 | .queue_data_in = tcm_qla2xxx_queue_data_in, |
| 2024 | .queue_status = tcm_qla2xxx_queue_status, |
| 2025 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, |
Nicholas Bellinger | 131e6ab | 2014-03-22 14:55:56 -0700 | [diff] [blame] | 2026 | .aborted_task = tcm_qla2xxx_aborted_task, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2027 | /* |
| 2028 | * Setup function pointers for generic logic in |
| 2029 | * target_core_fabric_configfs.c |
| 2030 | */ |
| 2031 | .fabric_make_wwn = tcm_qla2xxx_make_lport, |
| 2032 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, |
| 2033 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, |
| 2034 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, |
| 2035 | .fabric_post_link = NULL, |
| 2036 | .fabric_pre_unlink = NULL, |
| 2037 | .fabric_make_np = NULL, |
| 2038 | .fabric_drop_np = NULL, |
| 2039 | .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl, |
| 2040 | .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl, |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 2041 | |
| 2042 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, |
| 2043 | .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs, |
| 2044 | .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2045 | }; |
| 2046 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 2047 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { |
| 2048 | .module = THIS_MODULE, |
| 2049 | .name = "qla2xxx_npiv", |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2050 | .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name, |
| 2051 | .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident, |
Nicholas Bellinger | 84197a3 | 2014-01-30 09:52:21 -0800 | [diff] [blame] | 2052 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2053 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
| 2054 | .tpg_get_default_depth = tcm_qla2xxx_get_default_depth, |
| 2055 | .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id, |
| 2056 | .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len, |
| 2057 | .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id, |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 2058 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
| 2059 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, |
| 2060 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode, |
| 2061 | .tpg_check_prod_mode_write_protect = |
| 2062 | tcm_qla2xxx_check_prod_write_protect, |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 2063 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2064 | .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl, |
| 2065 | .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl, |
| 2066 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 2067 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2068 | .release_cmd = tcm_qla2xxx_release_cmd, |
Joern Engel | aaf68b7 | 2012-05-18 13:58:23 -0700 | [diff] [blame] | 2069 | .put_session = tcm_qla2xxx_put_session, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2070 | .shutdown_session = tcm_qla2xxx_shutdown_session, |
| 2071 | .close_session = tcm_qla2xxx_close_session, |
| 2072 | .sess_get_index = tcm_qla2xxx_sess_get_index, |
| 2073 | .sess_get_initiator_sid = NULL, |
| 2074 | .write_pending = tcm_qla2xxx_write_pending, |
| 2075 | .write_pending_status = tcm_qla2xxx_write_pending_status, |
| 2076 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, |
| 2077 | .get_task_tag = tcm_qla2xxx_get_task_tag, |
| 2078 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
| 2079 | .queue_data_in = tcm_qla2xxx_queue_data_in, |
| 2080 | .queue_status = tcm_qla2xxx_queue_status, |
| 2081 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, |
Nicholas Bellinger | 131e6ab | 2014-03-22 14:55:56 -0700 | [diff] [blame] | 2082 | .aborted_task = tcm_qla2xxx_aborted_task, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2083 | /* |
| 2084 | * Setup function pointers for generic logic in |
| 2085 | * target_core_fabric_configfs.c |
| 2086 | */ |
| 2087 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, |
| 2088 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, |
| 2089 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, |
| 2090 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, |
| 2091 | .fabric_post_link = NULL, |
| 2092 | .fabric_pre_unlink = NULL, |
| 2093 | .fabric_make_np = NULL, |
| 2094 | .fabric_drop_np = NULL, |
| 2095 | .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl, |
| 2096 | .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl, |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 2097 | |
| 2098 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, |
| 2099 | .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2100 | }; |
| 2101 | |
| 2102 | static int tcm_qla2xxx_register_configfs(void) |
| 2103 | { |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2104 | int ret; |
| 2105 | |
| 2106 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on " |
| 2107 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, |
| 2108 | utsname()->machine); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2109 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 2110 | ret = target_register_template(&tcm_qla2xxx_ops); |
| 2111 | if (ret) |
| 2112 | return ret; |
| 2113 | |
| 2114 | ret = target_register_template(&tcm_qla2xxx_npiv_ops); |
| 2115 | if (ret) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2116 | goto out_fabric; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2117 | |
| 2118 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", |
| 2119 | WQ_MEM_RECLAIM, 0); |
| 2120 | if (!tcm_qla2xxx_free_wq) { |
| 2121 | ret = -ENOMEM; |
| 2122 | goto out_fabric_npiv; |
| 2123 | } |
| 2124 | |
| 2125 | tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0); |
| 2126 | if (!tcm_qla2xxx_cmd_wq) { |
| 2127 | ret = -ENOMEM; |
| 2128 | goto out_free_wq; |
| 2129 | } |
| 2130 | |
| 2131 | return 0; |
| 2132 | |
| 2133 | out_free_wq: |
| 2134 | destroy_workqueue(tcm_qla2xxx_free_wq); |
| 2135 | out_fabric_npiv: |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 2136 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2137 | out_fabric: |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 2138 | target_unregister_template(&tcm_qla2xxx_ops); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2139 | return ret; |
| 2140 | } |
| 2141 | |
| 2142 | static void tcm_qla2xxx_deregister_configfs(void) |
| 2143 | { |
| 2144 | destroy_workqueue(tcm_qla2xxx_cmd_wq); |
| 2145 | destroy_workqueue(tcm_qla2xxx_free_wq); |
| 2146 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 2147 | target_unregister_template(&tcm_qla2xxx_ops); |
| 2148 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 2149 | } |
| 2150 | |
| 2151 | static int __init tcm_qla2xxx_init(void) |
| 2152 | { |
| 2153 | int ret; |
| 2154 | |
| 2155 | ret = tcm_qla2xxx_register_configfs(); |
| 2156 | if (ret < 0) |
| 2157 | return ret; |
| 2158 | |
| 2159 | return 0; |
| 2160 | } |
| 2161 | |
| 2162 | static void __exit tcm_qla2xxx_exit(void) |
| 2163 | { |
| 2164 | tcm_qla2xxx_deregister_configfs(); |
| 2165 | } |
| 2166 | |
| 2167 | MODULE_DESCRIPTION("TCM QLA2XXX series NPIV enabled fabric driver"); |
| 2168 | MODULE_LICENSE("GPL"); |
| 2169 | module_init(tcm_qla2xxx_init); |
| 2170 | module_exit(tcm_qla2xxx_exit); |