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> |
David S. Miller | 5538d29 | 2015-05-28 11:35:41 -0700 | [diff] [blame] | 30 | #include <linux/vmalloc.h> |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 31 | #include <linux/init.h> |
| 32 | #include <linux/list.h> |
| 33 | #include <linux/slab.h> |
| 34 | #include <linux/kthread.h> |
| 35 | #include <linux/types.h> |
| 36 | #include <linux/string.h> |
| 37 | #include <linux/configfs.h> |
| 38 | #include <linux/ctype.h> |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 39 | #include <asm/unaligned.h> |
| 40 | #include <scsi/scsi.h> |
| 41 | #include <scsi/scsi_host.h> |
| 42 | #include <scsi/scsi_device.h> |
| 43 | #include <scsi/scsi_cmnd.h> |
| 44 | #include <target/target_core_base.h> |
| 45 | #include <target/target_core_fabric.h> |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 46 | |
| 47 | #include "qla_def.h" |
| 48 | #include "qla_target.h" |
| 49 | #include "tcm_qla2xxx.h" |
| 50 | |
Himanshu Madhani | 4d6609c | 2014-09-25 06:14:43 -0400 | [diff] [blame] | 51 | static struct workqueue_struct *tcm_qla2xxx_free_wq; |
| 52 | static struct workqueue_struct *tcm_qla2xxx_cmd_wq; |
| 53 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 54 | /* |
| 55 | * Parse WWN. |
| 56 | * If strict, we require lower-case hex and colon separators to be sure |
| 57 | * the name is the same as what would be generated by ft_format_wwn() |
| 58 | * so the name and wwn are mapped one-to-one. |
| 59 | */ |
| 60 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) |
| 61 | { |
| 62 | const char *cp; |
| 63 | char c; |
| 64 | u32 nibble; |
| 65 | u32 byte = 0; |
| 66 | u32 pos = 0; |
| 67 | u32 err; |
| 68 | |
| 69 | *wwn = 0; |
| 70 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { |
| 71 | c = *cp; |
| 72 | if (c == '\n' && cp[1] == '\0') |
| 73 | continue; |
| 74 | if (strict && pos++ == 2 && byte++ < 7) { |
| 75 | pos = 0; |
| 76 | if (c == ':') |
| 77 | continue; |
| 78 | err = 1; |
| 79 | goto fail; |
| 80 | } |
| 81 | if (c == '\0') { |
| 82 | err = 2; |
| 83 | if (strict && byte != 8) |
| 84 | goto fail; |
| 85 | return cp - name; |
| 86 | } |
| 87 | err = 3; |
| 88 | if (isdigit(c)) |
| 89 | nibble = c - '0'; |
| 90 | else if (isxdigit(c) && (islower(c) || !strict)) |
| 91 | nibble = tolower(c) - 'a' + 10; |
| 92 | else |
| 93 | goto fail; |
| 94 | *wwn = (*wwn << 4) | nibble; |
| 95 | } |
| 96 | err = 4; |
| 97 | fail: |
| 98 | pr_debug("err %u len %zu pos %u byte %u\n", |
| 99 | err, cp - name, pos, byte); |
| 100 | return -1; |
| 101 | } |
| 102 | |
| 103 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) |
| 104 | { |
| 105 | u8 b[8]; |
| 106 | |
| 107 | put_unaligned_be64(wwn, b); |
| 108 | return snprintf(buf, len, |
| 109 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", |
| 110 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); |
| 111 | } |
| 112 | |
| 113 | static char *tcm_qla2xxx_get_fabric_name(void) |
| 114 | { |
| 115 | return "qla2xxx"; |
| 116 | } |
| 117 | |
| 118 | /* |
| 119 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn |
| 120 | */ |
| 121 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) |
| 122 | { |
Roland Dreier | d4f75b5 | 2012-06-11 18:31:31 -0700 | [diff] [blame] | 123 | unsigned int i, j; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 124 | u8 wwn[8]; |
| 125 | |
| 126 | memset(wwn, 0, sizeof(wwn)); |
| 127 | |
| 128 | /* Validate and store the new name */ |
| 129 | for (i = 0, j = 0; i < 16; i++) { |
Roland Dreier | d4f75b5 | 2012-06-11 18:31:31 -0700 | [diff] [blame] | 130 | int value; |
| 131 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 132 | value = hex_to_bin(*ns++); |
| 133 | if (value >= 0) |
| 134 | j = (j << 4) | value; |
| 135 | else |
| 136 | return -EINVAL; |
| 137 | |
| 138 | if (i % 2) { |
| 139 | wwn[i/2] = j & 0xff; |
| 140 | j = 0; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | *nm = wwn_to_u64(wwn); |
| 145 | return 0; |
| 146 | } |
| 147 | |
| 148 | /* |
| 149 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: |
| 150 | * store_fc_host_vport_create() |
| 151 | */ |
| 152 | static int tcm_qla2xxx_npiv_parse_wwn( |
| 153 | const char *name, |
| 154 | size_t count, |
| 155 | u64 *wwpn, |
| 156 | u64 *wwnn) |
| 157 | { |
| 158 | unsigned int cnt = count; |
| 159 | int rc; |
| 160 | |
| 161 | *wwpn = 0; |
| 162 | *wwnn = 0; |
| 163 | |
| 164 | /* count may include a LF at end of string */ |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 165 | if (name[cnt-1] == '\n' || name[cnt-1] == 0) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 166 | cnt--; |
| 167 | |
| 168 | /* validate we have enough characters for WWPN */ |
| 169 | if ((cnt != (16+1+16)) || (name[16] != ':')) |
| 170 | return -EINVAL; |
| 171 | |
| 172 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); |
| 173 | if (rc != 0) |
| 174 | return rc; |
| 175 | |
| 176 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); |
| 177 | if (rc != 0) |
| 178 | return rc; |
| 179 | |
| 180 | return 0; |
| 181 | } |
| 182 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 183 | static char *tcm_qla2xxx_npiv_get_fabric_name(void) |
| 184 | { |
| 185 | return "qla2xxx_npiv"; |
| 186 | } |
| 187 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 188 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) |
| 189 | { |
| 190 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 191 | struct tcm_qla2xxx_tpg, se_tpg); |
| 192 | struct tcm_qla2xxx_lport *lport = tpg->lport; |
| 193 | |
Roland Dreier | c046aa0 | 2012-10-11 13:41:31 -0700 | [diff] [blame] | 194 | return lport->lport_naa_name; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 195 | } |
| 196 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 197 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) |
| 198 | { |
| 199 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 200 | struct tcm_qla2xxx_tpg, se_tpg); |
| 201 | return tpg->lport_tpgt; |
| 202 | } |
| 203 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 204 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) |
| 205 | { |
| 206 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 207 | struct tcm_qla2xxx_tpg, se_tpg); |
| 208 | |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 209 | return tpg->tpg_attrib.generate_node_acls; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) |
| 213 | { |
| 214 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 215 | struct tcm_qla2xxx_tpg, se_tpg); |
| 216 | |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 217 | return tpg->tpg_attrib.cache_dynamic_acls; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) |
| 221 | { |
| 222 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 223 | struct tcm_qla2xxx_tpg, se_tpg); |
| 224 | |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 225 | return tpg->tpg_attrib.demo_mode_write_protect; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) |
| 229 | { |
| 230 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 231 | struct tcm_qla2xxx_tpg, se_tpg); |
| 232 | |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 233 | return tpg->tpg_attrib.prod_mode_write_protect; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 234 | } |
| 235 | |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 236 | static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) |
| 237 | { |
| 238 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 239 | struct tcm_qla2xxx_tpg, se_tpg); |
| 240 | |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 241 | return tpg->tpg_attrib.demo_mode_login_only; |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 242 | } |
| 243 | |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 244 | static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg) |
| 245 | { |
| 246 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 247 | struct tcm_qla2xxx_tpg, se_tpg); |
| 248 | |
| 249 | return tpg->tpg_attrib.fabric_prot_type; |
| 250 | } |
| 251 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 252 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) |
| 253 | { |
| 254 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 255 | struct tcm_qla2xxx_tpg, se_tpg); |
| 256 | |
| 257 | return tpg->lport_tpgt; |
| 258 | } |
| 259 | |
| 260 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) |
| 261 | { |
| 262 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, |
| 263 | struct qla_tgt_mgmt_cmd, free_work); |
| 264 | |
| 265 | transport_generic_free_cmd(&mcmd->se_cmd, 0); |
| 266 | } |
| 267 | |
| 268 | /* |
| 269 | * Called from qla_target_template->free_mcmd(), and will call |
| 270 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops |
| 271 | * release callback. qla_hw_data->hardware_lock is expected to be held |
| 272 | */ |
| 273 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) |
| 274 | { |
| 275 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); |
| 276 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); |
| 277 | } |
| 278 | |
| 279 | static void tcm_qla2xxx_complete_free(struct work_struct *work) |
| 280 | { |
| 281 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); |
| 282 | |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 283 | cmd->cmd_in_wq = 0; |
| 284 | |
| 285 | WARN_ON(cmd->cmd_flags & BIT_16); |
| 286 | |
Himanshu Madhani | ce1025c | 2015-12-17 14:56:58 -0500 | [diff] [blame] | 287 | cmd->vha->tgt_counters.qla_core_ret_sta_ctio++; |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 288 | cmd->cmd_flags |= BIT_16; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 289 | transport_generic_free_cmd(&cmd->se_cmd, 0); |
| 290 | } |
| 291 | |
| 292 | /* |
| 293 | * Called from qla_target_template->free_cmd(), and will call |
| 294 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops |
| 295 | * release callback. qla_hw_data->hardware_lock is expected to be held |
| 296 | */ |
| 297 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) |
| 298 | { |
Himanshu Madhani | ce1025c | 2015-12-17 14:56:58 -0500 | [diff] [blame] | 299 | cmd->vha->tgt_counters.core_qla_free_cmd++; |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 300 | cmd->cmd_in_wq = 1; |
Quinn Tran | a07100e | 2015-12-07 19:48:57 -0500 | [diff] [blame] | 301 | |
| 302 | BUG_ON(cmd->cmd_flags & BIT_20); |
| 303 | cmd->cmd_flags |= BIT_20; |
| 304 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 305 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); |
Quinn Tran | fb3269b | 2015-12-17 14:57:06 -0500 | [diff] [blame] | 306 | queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 307 | } |
| 308 | |
| 309 | /* |
| 310 | * Called from struct target_core_fabric_ops->check_stop_free() context |
| 311 | */ |
| 312 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) |
| 313 | { |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 314 | struct qla_tgt_cmd *cmd; |
| 315 | |
| 316 | if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) { |
| 317 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); |
| 318 | cmd->cmd_flags |= BIT_14; |
| 319 | } |
| 320 | |
Bart Van Assche | afc1660 | 2015-04-27 13:52:36 +0200 | [diff] [blame] | 321 | return target_put_sess_cmd(se_cmd); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying |
| 325 | * fabric descriptor @se_cmd command to release |
| 326 | */ |
| 327 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) |
| 328 | { |
| 329 | struct qla_tgt_cmd *cmd; |
| 330 | |
| 331 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { |
| 332 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, |
| 333 | struct qla_tgt_mgmt_cmd, se_cmd); |
| 334 | qlt_free_mcmd(mcmd); |
| 335 | return; |
| 336 | } |
| 337 | |
| 338 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); |
| 339 | qlt_free_cmd(cmd); |
| 340 | } |
| 341 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 342 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) |
| 343 | { |
| 344 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; |
| 345 | struct scsi_qla_host *vha; |
| 346 | unsigned long flags; |
| 347 | |
| 348 | BUG_ON(!sess); |
| 349 | vha = sess->vha; |
| 350 | |
Quinn Tran | 7560151 | 2015-12-17 14:57:04 -0500 | [diff] [blame] | 351 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); |
Christoph Hellwig | e3dc0e3 | 2016-05-02 15:45:23 +0200 | [diff] [blame] | 352 | target_sess_cmd_list_set_waiting(se_sess); |
| 353 | qlt_put_sess(sess); |
Quinn Tran | 7560151 | 2015-12-17 14:57:04 -0500 | [diff] [blame] | 354 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 355 | } |
| 356 | |
| 357 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) |
| 358 | { |
| 359 | return 0; |
| 360 | } |
| 361 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 362 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) |
| 363 | { |
| 364 | struct qla_tgt_cmd *cmd = container_of(se_cmd, |
| 365 | struct qla_tgt_cmd, se_cmd); |
Quinn Tran | a07100e | 2015-12-07 19:48:57 -0500 | [diff] [blame] | 366 | |
| 367 | if (cmd->aborted) { |
| 368 | /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task |
| 369 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task |
| 370 | * already kick start the free. |
| 371 | */ |
| 372 | pr_debug("write_pending aborted cmd[%p] refcount %d " |
| 373 | "transport_state %x, t_state %x, se_cmd_flags %x\n", |
| 374 | cmd,cmd->se_cmd.cmd_kref.refcount.counter, |
| 375 | cmd->se_cmd.transport_state, |
| 376 | cmd->se_cmd.t_state, |
| 377 | cmd->se_cmd.se_cmd_flags); |
| 378 | return 0; |
| 379 | } |
Quinn Tran | e5fdee8 | 2015-06-10 11:05:21 -0400 | [diff] [blame] | 380 | cmd->cmd_flags |= BIT_3; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 381 | cmd->bufflen = se_cmd->data_length; |
Nicholas Bellinger | b3faa2e | 2013-08-21 14:54:54 -0700 | [diff] [blame] | 382 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 383 | |
| 384 | cmd->sg_cnt = se_cmd->t_data_nents; |
| 385 | cmd->sg = se_cmd->t_data_sg; |
| 386 | |
Quinn Tran | f83adb6 | 2014-04-11 16:54:43 -0400 | [diff] [blame] | 387 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
| 388 | cmd->prot_sg = se_cmd->t_prot_sg; |
| 389 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; |
| 390 | se_cmd->pi_err = 0; |
| 391 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 392 | /* |
| 393 | * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup |
| 394 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. |
| 395 | */ |
| 396 | return qlt_rdy_to_xfer(cmd); |
| 397 | } |
| 398 | |
| 399 | static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) |
| 400 | { |
| 401 | unsigned long flags; |
| 402 | /* |
| 403 | * Check for WRITE_PENDING status to determine if we need to wait for |
| 404 | * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). |
| 405 | */ |
| 406 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); |
| 407 | if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || |
| 408 | se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { |
| 409 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); |
| 410 | wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, |
Quinn Tran | a07100e | 2015-12-07 19:48:57 -0500 | [diff] [blame] | 411 | 50); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 412 | return 0; |
| 413 | } |
| 414 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); |
| 415 | |
| 416 | return 0; |
| 417 | } |
| 418 | |
| 419 | static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) |
| 420 | { |
| 421 | return; |
| 422 | } |
| 423 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 424 | static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) |
| 425 | { |
Dilip Kumar Uppugandla | 5155ce5 | 2015-07-21 15:07:55 -0700 | [diff] [blame] | 426 | if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) { |
| 427 | struct qla_tgt_cmd *cmd = container_of(se_cmd, |
| 428 | struct qla_tgt_cmd, se_cmd); |
| 429 | return cmd->state; |
| 430 | } |
| 431 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 432 | return 0; |
| 433 | } |
| 434 | |
| 435 | /* |
| 436 | * Called from process context in qla_target.c:qlt_do_work() code |
| 437 | */ |
| 438 | static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, |
| 439 | unsigned char *cdb, uint32_t data_length, int fcp_task_attr, |
| 440 | int data_dir, int bidi) |
| 441 | { |
| 442 | struct se_cmd *se_cmd = &cmd->se_cmd; |
| 443 | struct se_session *se_sess; |
| 444 | struct qla_tgt_sess *sess; |
Laurence Oberman | 54a5e73 | 2016-05-10 01:23:17 -0700 | [diff] [blame] | 445 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
| 446 | struct se_portal_group *se_tpg; |
| 447 | struct tcm_qla2xxx_tpg *tpg; |
| 448 | #endif |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 449 | int flags = TARGET_SCF_ACK_KREF; |
| 450 | |
| 451 | if (bidi) |
| 452 | flags |= TARGET_SCF_BIDI_OP; |
| 453 | |
Quinn Tran | 5327c7d | 2016-02-10 18:59:14 -0500 | [diff] [blame] | 454 | if (se_cmd->cpuid != WORK_CPU_UNBOUND) |
| 455 | flags |= TARGET_SCF_USE_CPUID; |
| 456 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 457 | sess = cmd->sess; |
| 458 | if (!sess) { |
| 459 | pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n"); |
| 460 | return -EINVAL; |
| 461 | } |
| 462 | |
| 463 | se_sess = sess->se_sess; |
| 464 | if (!se_sess) { |
| 465 | pr_err("Unable to locate active struct se_session\n"); |
| 466 | return -EINVAL; |
| 467 | } |
| 468 | |
Laurence Oberman | 54a5e73 | 2016-05-10 01:23:17 -0700 | [diff] [blame] | 469 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
| 470 | se_tpg = se_sess->se_tpg; |
| 471 | tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); |
| 472 | if (unlikely(tpg->tpg_attrib.jam_host)) { |
| 473 | /* return, and dont run target_submit_cmd,discarding command */ |
| 474 | return 0; |
| 475 | } |
| 476 | #endif |
| 477 | |
Himanshu Madhani | ce1025c | 2015-12-17 14:56:58 -0500 | [diff] [blame] | 478 | cmd->vha->tgt_counters.qla_core_sbt_cmd++; |
Roland Dreier | d6dfc86 | 2012-07-16 11:04:39 -0700 | [diff] [blame] | 479 | 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] | 480 | cmd->unpacked_lun, data_length, fcp_task_attr, |
| 481 | data_dir, flags); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 482 | } |
| 483 | |
Christoph Hellwig | 43381ce | 2012-07-08 15:58:44 -0400 | [diff] [blame] | 484 | static void tcm_qla2xxx_handle_data_work(struct work_struct *work) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 485 | { |
| 486 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); |
Quinn Tran | a07100e | 2015-12-07 19:48:57 -0500 | [diff] [blame] | 487 | unsigned long flags; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 488 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 489 | /* |
| 490 | * Ensure that the complete FCP WRITE payload has been received. |
| 491 | * Otherwise return an exception via CHECK_CONDITION status. |
| 492 | */ |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 493 | cmd->cmd_in_wq = 0; |
Quinn Tran | a07100e | 2015-12-07 19:48:57 -0500 | [diff] [blame] | 494 | |
| 495 | spin_lock_irqsave(&cmd->cmd_lock, flags); |
| 496 | cmd->cmd_flags |= CMD_FLAG_DATA_WORK; |
| 497 | if (cmd->aborted) { |
| 498 | cmd->cmd_flags |= CMD_FLAG_DATA_WORK_FREE; |
| 499 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
| 500 | |
| 501 | tcm_qla2xxx_free_cmd(cmd); |
| 502 | return; |
| 503 | } |
| 504 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
| 505 | |
Himanshu Madhani | ce1025c | 2015-12-17 14:56:58 -0500 | [diff] [blame] | 506 | cmd->vha->tgt_counters.qla_core_ret_ctio++; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 507 | if (!cmd->write_data_transferred) { |
| 508 | /* |
| 509 | * Check if se_cmd has already been aborted via LUN_RESET, and |
| 510 | * waiting upon completion in tcm_qla2xxx_write_pending_status() |
| 511 | */ |
Christoph Hellwig | 43381ce | 2012-07-08 15:58:44 -0400 | [diff] [blame] | 512 | if (cmd->se_cmd.transport_state & CMD_T_ABORTED) { |
| 513 | complete(&cmd->se_cmd.t_transport_stop_comp); |
| 514 | return; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 515 | } |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 516 | |
Quinn Tran | f83adb6 | 2014-04-11 16:54:43 -0400 | [diff] [blame] | 517 | if (cmd->se_cmd.pi_err) |
| 518 | transport_generic_request_failure(&cmd->se_cmd, |
| 519 | cmd->se_cmd.pi_err); |
| 520 | else |
| 521 | transport_generic_request_failure(&cmd->se_cmd, |
| 522 | TCM_CHECK_CONDITION_ABORT_CMD); |
| 523 | |
Christoph Hellwig | 43381ce | 2012-07-08 15:58:44 -0400 | [diff] [blame] | 524 | return; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 525 | } |
Christoph Hellwig | 43381ce | 2012-07-08 15:58:44 -0400 | [diff] [blame] | 526 | |
| 527 | return target_execute_cmd(&cmd->se_cmd); |
| 528 | } |
| 529 | |
| 530 | /* |
| 531 | * Called from qla_target.c:qlt_do_ctio_completion() |
| 532 | */ |
| 533 | static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) |
| 534 | { |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 535 | cmd->cmd_flags |= BIT_10; |
| 536 | cmd->cmd_in_wq = 1; |
Christoph Hellwig | 43381ce | 2012-07-08 15:58:44 -0400 | [diff] [blame] | 537 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); |
Quinn Tran | fb3269b | 2015-12-17 14:57:06 -0500 | [diff] [blame] | 538 | queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 539 | } |
| 540 | |
Quinn Tran | f83adb6 | 2014-04-11 16:54:43 -0400 | [diff] [blame] | 541 | static void tcm_qla2xxx_handle_dif_work(struct work_struct *work) |
| 542 | { |
| 543 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); |
| 544 | |
| 545 | /* take an extra kref to prevent cmd free too early. |
| 546 | * need to wait for SCSI status/check condition to |
| 547 | * finish responding generate by transport_generic_request_failure. |
| 548 | */ |
| 549 | kref_get(&cmd->se_cmd.cmd_kref); |
| 550 | transport_generic_request_failure(&cmd->se_cmd, cmd->se_cmd.pi_err); |
| 551 | } |
| 552 | |
| 553 | /* |
| 554 | * Called from qla_target.c:qlt_do_ctio_completion() |
| 555 | */ |
| 556 | static void tcm_qla2xxx_handle_dif_err(struct qla_tgt_cmd *cmd) |
| 557 | { |
| 558 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_dif_work); |
| 559 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); |
| 560 | } |
| 561 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 562 | /* |
| 563 | * Called from qla_target.c:qlt_issue_task_mgmt() |
| 564 | */ |
Roland Dreier | 9389c3c | 2012-06-11 18:31:30 -0700 | [diff] [blame] | 565 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun, |
| 566 | uint8_t tmr_func, uint32_t tag) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 567 | { |
| 568 | struct qla_tgt_sess *sess = mcmd->sess; |
| 569 | struct se_cmd *se_cmd = &mcmd->se_cmd; |
| 570 | |
| 571 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, |
| 572 | tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF); |
| 573 | } |
| 574 | |
| 575 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) |
| 576 | { |
| 577 | struct qla_tgt_cmd *cmd = container_of(se_cmd, |
| 578 | struct qla_tgt_cmd, se_cmd); |
| 579 | |
Quinn Tran | a07100e | 2015-12-07 19:48:57 -0500 | [diff] [blame] | 580 | if (cmd->aborted) { |
| 581 | /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task |
| 582 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task |
| 583 | * already kick start the free. |
| 584 | */ |
| 585 | pr_debug("queue_data_in aborted cmd[%p] refcount %d " |
| 586 | "transport_state %x, t_state %x, se_cmd_flags %x\n", |
| 587 | cmd,cmd->se_cmd.cmd_kref.refcount.counter, |
| 588 | cmd->se_cmd.transport_state, |
| 589 | cmd->se_cmd.t_state, |
| 590 | cmd->se_cmd.se_cmd_flags); |
| 591 | return 0; |
| 592 | } |
| 593 | |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 594 | cmd->cmd_flags |= BIT_4; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 595 | cmd->bufflen = se_cmd->data_length; |
Nicholas Bellinger | b3faa2e | 2013-08-21 14:54:54 -0700 | [diff] [blame] | 596 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 597 | |
| 598 | cmd->sg_cnt = se_cmd->t_data_nents; |
| 599 | cmd->sg = se_cmd->t_data_sg; |
| 600 | cmd->offset = 0; |
| 601 | |
Quinn Tran | f83adb6 | 2014-04-11 16:54:43 -0400 | [diff] [blame] | 602 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
| 603 | cmd->prot_sg = se_cmd->t_prot_sg; |
| 604 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; |
| 605 | se_cmd->pi_err = 0; |
| 606 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 607 | /* |
| 608 | * Now queue completed DATA_IN the qla2xxx LLD and response ring |
| 609 | */ |
| 610 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, |
| 611 | se_cmd->scsi_status); |
| 612 | } |
| 613 | |
| 614 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) |
| 615 | { |
| 616 | struct qla_tgt_cmd *cmd = container_of(se_cmd, |
| 617 | struct qla_tgt_cmd, se_cmd); |
| 618 | int xmit_type = QLA_TGT_XMIT_STATUS; |
| 619 | |
| 620 | cmd->bufflen = se_cmd->data_length; |
| 621 | cmd->sg = NULL; |
| 622 | cmd->sg_cnt = 0; |
| 623 | cmd->offset = 0; |
Nicholas Bellinger | b3faa2e | 2013-08-21 14:54:54 -0700 | [diff] [blame] | 624 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
Saurav Kashyap | e07f8f6 | 2014-09-25 06:14:58 -0400 | [diff] [blame] | 625 | if (cmd->cmd_flags & BIT_5) { |
| 626 | pr_crit("Bit_5 already set for cmd = %p.\n", cmd); |
| 627 | dump_stack(); |
| 628 | } |
| 629 | cmd->cmd_flags |= BIT_5; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 630 | |
| 631 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { |
| 632 | /* |
| 633 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen |
| 634 | * for qla_tgt_xmit_response LLD code |
| 635 | */ |
Roland Dreier | b5aff3d | 2013-06-05 09:54:17 -0700 | [diff] [blame] | 636 | if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { |
| 637 | se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT; |
| 638 | se_cmd->residual_count = 0; |
| 639 | } |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 640 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; |
Roland Dreier | b5aff3d | 2013-06-05 09:54:17 -0700 | [diff] [blame] | 641 | se_cmd->residual_count += se_cmd->data_length; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 642 | |
| 643 | cmd->bufflen = 0; |
| 644 | } |
| 645 | /* |
| 646 | * Now queue status response to qla2xxx LLD code and response ring |
| 647 | */ |
| 648 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); |
| 649 | } |
| 650 | |
Joern Engel | b79fafa | 2013-07-03 11:22:17 -0400 | [diff] [blame] | 651 | static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 652 | { |
| 653 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; |
| 654 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, |
| 655 | struct qla_tgt_mgmt_cmd, se_cmd); |
| 656 | |
| 657 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", |
| 658 | mcmd, se_tmr->function, se_tmr->response); |
| 659 | /* |
| 660 | * Do translation between TCM TM response codes and |
| 661 | * QLA2xxx FC TM response codes. |
| 662 | */ |
| 663 | switch (se_tmr->response) { |
| 664 | case TMR_FUNCTION_COMPLETE: |
| 665 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; |
| 666 | break; |
| 667 | case TMR_TASK_DOES_NOT_EXIST: |
| 668 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; |
| 669 | break; |
| 670 | case TMR_FUNCTION_REJECTED: |
| 671 | mcmd->fc_tm_rsp = FC_TM_REJECT; |
| 672 | break; |
| 673 | case TMR_LUN_DOES_NOT_EXIST: |
| 674 | default: |
| 675 | mcmd->fc_tm_rsp = FC_TM_FAILED; |
| 676 | break; |
| 677 | } |
| 678 | /* |
| 679 | * Queue the TM response to QLA2xxx LLD to build a |
| 680 | * CTIO response packet. |
| 681 | */ |
| 682 | qlt_xmit_tm_rsp(mcmd); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 683 | } |
| 684 | |
Quinn Tran | a07100e | 2015-12-07 19:48:57 -0500 | [diff] [blame] | 685 | |
| 686 | #define DATA_WORK_NOT_FREE(_flags) \ |
| 687 | (( _flags & (CMD_FLAG_DATA_WORK|CMD_FLAG_DATA_WORK_FREE)) == \ |
| 688 | CMD_FLAG_DATA_WORK) |
Nicholas Bellinger | 131e6ab | 2014-03-22 14:55:56 -0700 | [diff] [blame] | 689 | static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) |
| 690 | { |
| 691 | struct qla_tgt_cmd *cmd = container_of(se_cmd, |
| 692 | struct qla_tgt_cmd, se_cmd); |
Quinn Tran | a07100e | 2015-12-07 19:48:57 -0500 | [diff] [blame] | 693 | unsigned long flags; |
| 694 | |
| 695 | if (qlt_abort_cmd(cmd)) |
| 696 | return; |
| 697 | |
| 698 | spin_lock_irqsave(&cmd->cmd_lock, flags); |
| 699 | if ((cmd->state == QLA_TGT_STATE_NEW)|| |
| 700 | ((cmd->state == QLA_TGT_STATE_DATA_IN) && |
| 701 | DATA_WORK_NOT_FREE(cmd->cmd_flags)) ) { |
| 702 | |
| 703 | cmd->cmd_flags |= CMD_FLAG_DATA_WORK_FREE; |
| 704 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
| 705 | /* Cmd have not reached firmware. |
| 706 | * Use this trigger to free it. */ |
| 707 | tcm_qla2xxx_free_cmd(cmd); |
| 708 | return; |
| 709 | } |
| 710 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
| 711 | return; |
| 712 | |
Nicholas Bellinger | 131e6ab | 2014-03-22 14:55:56 -0700 | [diff] [blame] | 713 | } |
| 714 | |
Nicholas Bellinger | f2d5d9b | 2012-05-18 15:37:53 -0700 | [diff] [blame] | 715 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, |
| 716 | struct tcm_qla2xxx_nacl *, struct qla_tgt_sess *); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 717 | /* |
Quinn Tran | 7560151 | 2015-12-17 14:57:04 -0500 | [diff] [blame] | 718 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 719 | */ |
| 720 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess) |
| 721 | { |
| 722 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
| 723 | struct se_portal_group *se_tpg = se_nacl->se_tpg; |
| 724 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; |
| 725 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, |
| 726 | struct tcm_qla2xxx_lport, lport_wwn); |
| 727 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, |
| 728 | struct tcm_qla2xxx_nacl, se_node_acl); |
| 729 | void *node; |
| 730 | |
| 731 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); |
| 732 | |
| 733 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); |
Joern Engel | f4c24db1 | 2014-10-03 14:35:56 -0700 | [diff] [blame] | 734 | if (WARN_ON(node && (node != se_nacl))) { |
| 735 | /* |
| 736 | * The nacl no longer matches what we think it should be. |
| 737 | * Most likely a new dynamic acl has been added while |
| 738 | * someone dropped the hardware lock. It clearly is a |
| 739 | * bug elsewhere, but this bit can't make things worse. |
| 740 | */ |
| 741 | btree_insert32(&lport->lport_fcport_map, nacl->nport_id, |
| 742 | node, GFP_ATOMIC); |
| 743 | } |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 744 | |
| 745 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", |
| 746 | se_nacl, nacl->nport_wwnn, nacl->nport_id); |
Nicholas Bellinger | f2d5d9b | 2012-05-18 15:37:53 -0700 | [diff] [blame] | 747 | /* |
| 748 | * Now clear the se_nacl and session pointers from our HW lport lookup |
| 749 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. |
| 750 | * |
| 751 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> |
| 752 | * target_wait_for_sess_cmds() before the session waits for outstanding |
| 753 | * I/O to complete, to avoid a race between session shutdown execution |
| 754 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. |
| 755 | */ |
| 756 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 757 | } |
| 758 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 759 | static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess) |
| 760 | { |
Quinn Tran | 7560151 | 2015-12-17 14:57:04 -0500 | [diff] [blame] | 761 | assert_spin_locked(&sess->vha->hw->tgt.sess_lock); |
Jörn Engel | 08234e3 | 2013-06-12 16:27:54 -0400 | [diff] [blame] | 762 | target_sess_cmd_list_set_waiting(sess->se_sess); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 763 | } |
| 764 | |
Christoph Hellwig | c7d6a80 | 2015-04-13 19:51:14 +0200 | [diff] [blame] | 765 | static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl, |
| 766 | const char *name) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 767 | { |
Christoph Hellwig | c7d6a80 | 2015-04-13 19:51:14 +0200 | [diff] [blame] | 768 | struct tcm_qla2xxx_nacl *nacl = |
| 769 | container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 770 | u64 wwnn; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 771 | |
| 772 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) |
Christoph Hellwig | c7d6a80 | 2015-04-13 19:51:14 +0200 | [diff] [blame] | 773 | return -EINVAL; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 774 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 775 | nacl->nport_wwnn = wwnn; |
| 776 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 777 | |
Christoph Hellwig | c7d6a80 | 2015-04-13 19:51:14 +0200 | [diff] [blame] | 778 | return 0; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 779 | } |
| 780 | |
| 781 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ |
| 782 | |
| 783 | #define DEF_QLA_TPG_ATTRIB(name) \ |
| 784 | \ |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 785 | static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \ |
| 786 | struct config_item *item, char *page) \ |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 787 | { \ |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 788 | struct se_portal_group *se_tpg = attrib_to_tpg(item); \ |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 789 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
| 790 | struct tcm_qla2xxx_tpg, se_tpg); \ |
| 791 | \ |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 792 | return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 793 | } \ |
| 794 | \ |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 795 | static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \ |
| 796 | struct config_item *item, const char *page, size_t count) \ |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 797 | { \ |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 798 | struct se_portal_group *se_tpg = attrib_to_tpg(item); \ |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 799 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
| 800 | struct tcm_qla2xxx_tpg, se_tpg); \ |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 801 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 802 | unsigned long val; \ |
| 803 | int ret; \ |
| 804 | \ |
| 805 | ret = kstrtoul(page, 0, &val); \ |
| 806 | if (ret < 0) { \ |
| 807 | pr_err("kstrtoul() failed with" \ |
| 808 | " ret: %d\n", ret); \ |
| 809 | return -EINVAL; \ |
| 810 | } \ |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 811 | \ |
| 812 | if ((val != 0) && (val != 1)) { \ |
| 813 | pr_err("Illegal boolean value %lu\n", val); \ |
| 814 | return -EINVAL; \ |
| 815 | } \ |
| 816 | \ |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 817 | a->name = val; \ |
| 818 | \ |
| 819 | return count; \ |
| 820 | } \ |
| 821 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 822 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 823 | DEF_QLA_TPG_ATTRIB(generate_node_acls); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 824 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 825 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 826 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 827 | DEF_QLA_TPG_ATTRIB(demo_mode_login_only); |
Laurence Oberman | 54a5e73 | 2016-05-10 01:23:17 -0700 | [diff] [blame] | 828 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
| 829 | DEF_QLA_TPG_ATTRIB(jam_host); |
| 830 | #endif |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 831 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 832 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 833 | &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls, |
| 834 | &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls, |
| 835 | &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect, |
| 836 | &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect, |
| 837 | &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only, |
Laurence Oberman | 54a5e73 | 2016-05-10 01:23:17 -0700 | [diff] [blame] | 838 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
| 839 | &tcm_qla2xxx_tpg_attrib_attr_jam_host, |
| 840 | #endif |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 841 | NULL, |
| 842 | }; |
| 843 | |
| 844 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ |
| 845 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 846 | static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item, |
| 847 | char *page) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 848 | { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 849 | struct se_portal_group *se_tpg = to_tpg(item); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 850 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 851 | struct tcm_qla2xxx_tpg, se_tpg); |
| 852 | |
| 853 | return snprintf(page, PAGE_SIZE, "%d\n", |
| 854 | atomic_read(&tpg->lport_tpg_enabled)); |
| 855 | } |
| 856 | |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 857 | static void tcm_qla2xxx_depend_tpg(struct work_struct *work) |
| 858 | { |
| 859 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, |
| 860 | struct tcm_qla2xxx_tpg, tpg_base_work); |
| 861 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; |
| 862 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; |
| 863 | |
Christoph Hellwig | d588cf8 | 2015-05-03 08:50:52 +0200 | [diff] [blame] | 864 | if (!target_depend_item(&se_tpg->tpg_group.cg_item)) { |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 865 | atomic_set(&base_tpg->lport_tpg_enabled, 1); |
| 866 | qlt_enable_vha(base_vha); |
| 867 | } |
| 868 | complete(&base_tpg->tpg_base_comp); |
| 869 | } |
| 870 | |
| 871 | static void tcm_qla2xxx_undepend_tpg(struct work_struct *work) |
| 872 | { |
| 873 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, |
| 874 | struct tcm_qla2xxx_tpg, tpg_base_work); |
| 875 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; |
| 876 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; |
| 877 | |
| 878 | if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) { |
| 879 | atomic_set(&base_tpg->lport_tpg_enabled, 0); |
Christoph Hellwig | d588cf8 | 2015-05-03 08:50:52 +0200 | [diff] [blame] | 880 | target_undepend_item(&se_tpg->tpg_group.cg_item); |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 881 | } |
| 882 | complete(&base_tpg->tpg_base_comp); |
| 883 | } |
| 884 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 885 | static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item, |
| 886 | const char *page, size_t count) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 887 | { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 888 | struct se_portal_group *se_tpg = to_tpg(item); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 889 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 890 | struct tcm_qla2xxx_tpg, se_tpg); |
| 891 | unsigned long op; |
| 892 | int rc; |
| 893 | |
| 894 | rc = kstrtoul(page, 0, &op); |
| 895 | if (rc < 0) { |
| 896 | pr_err("kstrtoul() returned %d\n", rc); |
| 897 | return -EINVAL; |
| 898 | } |
| 899 | if ((op != 1) && (op != 0)) { |
| 900 | pr_err("Illegal value for tpg_enable: %lu\n", op); |
| 901 | return -EINVAL; |
| 902 | } |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 903 | if (op) { |
| 904 | if (atomic_read(&tpg->lport_tpg_enabled)) |
| 905 | return -EEXIST; |
| 906 | |
| 907 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg); |
| 908 | } else { |
| 909 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
| 910 | return count; |
| 911 | |
| 912 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg); |
| 913 | } |
| 914 | init_completion(&tpg->tpg_base_comp); |
| 915 | schedule_work(&tpg->tpg_base_work); |
| 916 | wait_for_completion(&tpg->tpg_base_comp); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 917 | |
| 918 | if (op) { |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 919 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 920 | return -ENODEV; |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 921 | } else { |
| 922 | if (atomic_read(&tpg->lport_tpg_enabled)) |
| 923 | return -EPERM; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 924 | } |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 925 | return count; |
| 926 | } |
| 927 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 928 | static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item, |
| 929 | char *page) |
Nicholas Bellinger | d23dbaa | 2015-03-06 20:43:34 -0800 | [diff] [blame] | 930 | { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 931 | return target_show_dynamic_sessions(to_tpg(item), page); |
Nicholas Bellinger | d23dbaa | 2015-03-06 20:43:34 -0800 | [diff] [blame] | 932 | } |
| 933 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 934 | static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item, |
| 935 | const char *page, size_t count) |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 936 | { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 937 | struct se_portal_group *se_tpg = to_tpg(item); |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 938 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 939 | struct tcm_qla2xxx_tpg, se_tpg); |
| 940 | unsigned long val; |
| 941 | int ret = kstrtoul(page, 0, &val); |
| 942 | |
| 943 | if (ret) { |
| 944 | pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret); |
| 945 | return ret; |
| 946 | } |
| 947 | if (val != 0 && val != 1 && val != 3) { |
| 948 | pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val); |
| 949 | return -EINVAL; |
| 950 | } |
| 951 | tpg->tpg_attrib.fabric_prot_type = val; |
| 952 | |
| 953 | return count; |
| 954 | } |
| 955 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 956 | static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item, |
| 957 | char *page) |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 958 | { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 959 | struct se_portal_group *se_tpg = to_tpg(item); |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 960 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 961 | struct tcm_qla2xxx_tpg, se_tpg); |
| 962 | |
| 963 | return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type); |
| 964 | } |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 965 | |
Himanshu Madhani | 3786dc4 | 2015-11-24 12:20:15 -0500 | [diff] [blame] | 966 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable); |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 967 | CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions); |
| 968 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type); |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 969 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 970 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 971 | &tcm_qla2xxx_tpg_attr_enable, |
| 972 | &tcm_qla2xxx_tpg_attr_dynamic_sessions, |
| 973 | &tcm_qla2xxx_tpg_attr_fabric_prot_type, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 974 | NULL, |
| 975 | }; |
| 976 | |
| 977 | static struct se_portal_group *tcm_qla2xxx_make_tpg( |
| 978 | struct se_wwn *wwn, |
| 979 | struct config_group *group, |
| 980 | const char *name) |
| 981 | { |
| 982 | struct tcm_qla2xxx_lport *lport = container_of(wwn, |
| 983 | struct tcm_qla2xxx_lport, lport_wwn); |
| 984 | struct tcm_qla2xxx_tpg *tpg; |
| 985 | unsigned long tpgt; |
| 986 | int ret; |
| 987 | |
| 988 | if (strstr(name, "tpgt_") != name) |
| 989 | return ERR_PTR(-EINVAL); |
| 990 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) |
| 991 | return ERR_PTR(-EINVAL); |
| 992 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 993 | if ((tpgt != 1)) { |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 994 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); |
| 995 | return ERR_PTR(-ENOSYS); |
| 996 | } |
| 997 | |
| 998 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); |
| 999 | if (!tpg) { |
| 1000 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); |
| 1001 | return ERR_PTR(-ENOMEM); |
| 1002 | } |
| 1003 | tpg->lport = lport; |
| 1004 | tpg->lport_tpgt = tpgt; |
| 1005 | /* |
| 1006 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic |
| 1007 | * NodeACLs |
| 1008 | */ |
Andy Grover | a309f48 | 2013-10-09 11:05:59 -0700 | [diff] [blame] | 1009 | tpg->tpg_attrib.generate_node_acls = 1; |
| 1010 | tpg->tpg_attrib.demo_mode_write_protect = 1; |
| 1011 | tpg->tpg_attrib.cache_dynamic_acls = 1; |
| 1012 | tpg->tpg_attrib.demo_mode_login_only = 1; |
Laurence Oberman | 54a5e73 | 2016-05-10 01:23:17 -0700 | [diff] [blame] | 1013 | tpg->tpg_attrib.jam_host = 0; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1014 | |
Nicholas Bellinger | bc0c94b | 2015-05-20 21:48:03 -0700 | [diff] [blame] | 1015 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1016 | if (ret < 0) { |
| 1017 | kfree(tpg); |
| 1018 | return NULL; |
| 1019 | } |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1020 | |
| 1021 | lport->tpg_1 = tpg; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1022 | |
| 1023 | return &tpg->se_tpg; |
| 1024 | } |
| 1025 | |
| 1026 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) |
| 1027 | { |
| 1028 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 1029 | struct tcm_qla2xxx_tpg, se_tpg); |
| 1030 | struct tcm_qla2xxx_lport *lport = tpg->lport; |
| 1031 | struct scsi_qla_host *vha = lport->qla_vha; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1032 | /* |
| 1033 | * Call into qla2x_target.c LLD logic to shutdown the active |
| 1034 | * FC Nexuses and disable target mode operation for this qla_hw_data |
| 1035 | */ |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1036 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop) |
| 1037 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1038 | |
| 1039 | core_tpg_deregister(se_tpg); |
| 1040 | /* |
| 1041 | * Clear local TPG=1 pointer for non NPIV mode. |
| 1042 | */ |
Nicholas Bellinger | 394d62b | 2014-02-19 16:52:15 -0800 | [diff] [blame] | 1043 | lport->tpg_1 = NULL; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1044 | kfree(tpg); |
| 1045 | } |
| 1046 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 1047 | static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item, |
| 1048 | char *page) |
Nicholas Bellinger | 394d62b | 2014-02-19 16:52:15 -0800 | [diff] [blame] | 1049 | { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 1050 | return tcm_qla2xxx_tpg_enable_show(item, page); |
Nicholas Bellinger | 394d62b | 2014-02-19 16:52:15 -0800 | [diff] [blame] | 1051 | } |
| 1052 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 1053 | static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item, |
| 1054 | const char *page, size_t count) |
Nicholas Bellinger | 394d62b | 2014-02-19 16:52:15 -0800 | [diff] [blame] | 1055 | { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 1056 | struct se_portal_group *se_tpg = to_tpg(item); |
Nicholas Bellinger | 394d62b | 2014-02-19 16:52:15 -0800 | [diff] [blame] | 1057 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; |
| 1058 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, |
| 1059 | struct tcm_qla2xxx_lport, lport_wwn); |
| 1060 | struct scsi_qla_host *vha = lport->qla_vha; |
| 1061 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 1062 | struct tcm_qla2xxx_tpg, se_tpg); |
| 1063 | unsigned long op; |
| 1064 | int rc; |
| 1065 | |
| 1066 | rc = kstrtoul(page, 0, &op); |
| 1067 | if (rc < 0) { |
| 1068 | pr_err("kstrtoul() returned %d\n", rc); |
| 1069 | return -EINVAL; |
| 1070 | } |
| 1071 | if ((op != 1) && (op != 0)) { |
| 1072 | pr_err("Illegal value for tpg_enable: %lu\n", op); |
| 1073 | return -EINVAL; |
| 1074 | } |
| 1075 | if (op) { |
| 1076 | if (atomic_read(&tpg->lport_tpg_enabled)) |
| 1077 | return -EEXIST; |
| 1078 | |
| 1079 | atomic_set(&tpg->lport_tpg_enabled, 1); |
| 1080 | qlt_enable_vha(vha); |
| 1081 | } else { |
| 1082 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
| 1083 | return count; |
| 1084 | |
| 1085 | atomic_set(&tpg->lport_tpg_enabled, 0); |
| 1086 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); |
| 1087 | } |
| 1088 | |
| 1089 | return count; |
| 1090 | } |
| 1091 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 1092 | CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable); |
Nicholas Bellinger | 394d62b | 2014-02-19 16:52:15 -0800 | [diff] [blame] | 1093 | |
| 1094 | static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 1095 | &tcm_qla2xxx_npiv_tpg_attr_enable, |
Nicholas Bellinger | 394d62b | 2014-02-19 16:52:15 -0800 | [diff] [blame] | 1096 | NULL, |
| 1097 | }; |
| 1098 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1099 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg( |
| 1100 | struct se_wwn *wwn, |
| 1101 | struct config_group *group, |
| 1102 | const char *name) |
| 1103 | { |
| 1104 | struct tcm_qla2xxx_lport *lport = container_of(wwn, |
| 1105 | struct tcm_qla2xxx_lport, lport_wwn); |
| 1106 | struct tcm_qla2xxx_tpg *tpg; |
| 1107 | unsigned long tpgt; |
| 1108 | int ret; |
| 1109 | |
| 1110 | if (strstr(name, "tpgt_") != name) |
| 1111 | return ERR_PTR(-EINVAL); |
| 1112 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) |
| 1113 | return ERR_PTR(-EINVAL); |
| 1114 | |
| 1115 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); |
| 1116 | if (!tpg) { |
| 1117 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); |
| 1118 | return ERR_PTR(-ENOMEM); |
| 1119 | } |
| 1120 | tpg->lport = lport; |
| 1121 | tpg->lport_tpgt = tpgt; |
| 1122 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1123 | /* |
| 1124 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic |
| 1125 | * NodeACLs |
| 1126 | */ |
| 1127 | tpg->tpg_attrib.generate_node_acls = 1; |
| 1128 | tpg->tpg_attrib.demo_mode_write_protect = 1; |
| 1129 | tpg->tpg_attrib.cache_dynamic_acls = 1; |
| 1130 | tpg->tpg_attrib.demo_mode_login_only = 1; |
| 1131 | |
Nicholas Bellinger | bc0c94b | 2015-05-20 21:48:03 -0700 | [diff] [blame] | 1132 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1133 | if (ret < 0) { |
| 1134 | kfree(tpg); |
| 1135 | return NULL; |
| 1136 | } |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1137 | lport->tpg_1 = tpg; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1138 | return &tpg->se_tpg; |
| 1139 | } |
| 1140 | |
| 1141 | /* |
Quinn Tran | 7560151 | 2015-12-17 14:57:04 -0500 | [diff] [blame] | 1142 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1143 | */ |
| 1144 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id( |
| 1145 | scsi_qla_host_t *vha, |
| 1146 | const uint8_t *s_id) |
| 1147 | { |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1148 | struct tcm_qla2xxx_lport *lport; |
| 1149 | struct se_node_acl *se_nacl; |
| 1150 | struct tcm_qla2xxx_nacl *nacl; |
| 1151 | u32 key; |
| 1152 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1153 | lport = vha->vha_tgt.target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1154 | if (!lport) { |
| 1155 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); |
| 1156 | dump_stack(); |
| 1157 | return NULL; |
| 1158 | } |
| 1159 | |
Swapnil Nagle | 8b2f5ff | 2015-07-14 16:00:43 -0400 | [diff] [blame] | 1160 | key = sid_to_key(s_id); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1161 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); |
| 1162 | |
| 1163 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); |
| 1164 | if (!se_nacl) { |
| 1165 | pr_debug("Unable to locate s_id: 0x%06x\n", key); |
| 1166 | return NULL; |
| 1167 | } |
| 1168 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", |
| 1169 | se_nacl, se_nacl->initiatorname); |
| 1170 | |
| 1171 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); |
| 1172 | if (!nacl->qla_tgt_sess) { |
| 1173 | pr_err("Unable to locate struct qla_tgt_sess\n"); |
| 1174 | return NULL; |
| 1175 | } |
| 1176 | |
| 1177 | return nacl->qla_tgt_sess; |
| 1178 | } |
| 1179 | |
| 1180 | /* |
Quinn Tran | 7560151 | 2015-12-17 14:57:04 -0500 | [diff] [blame] | 1181 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1182 | */ |
| 1183 | static void tcm_qla2xxx_set_sess_by_s_id( |
| 1184 | struct tcm_qla2xxx_lport *lport, |
| 1185 | struct se_node_acl *new_se_nacl, |
| 1186 | struct tcm_qla2xxx_nacl *nacl, |
| 1187 | struct se_session *se_sess, |
| 1188 | struct qla_tgt_sess *qla_tgt_sess, |
| 1189 | uint8_t *s_id) |
| 1190 | { |
| 1191 | u32 key; |
| 1192 | void *slot; |
| 1193 | int rc; |
| 1194 | |
Swapnil Nagle | 8b2f5ff | 2015-07-14 16:00:43 -0400 | [diff] [blame] | 1195 | key = sid_to_key(s_id); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1196 | pr_debug("set_sess_by_s_id: %06x\n", key); |
| 1197 | |
| 1198 | slot = btree_lookup32(&lport->lport_fcport_map, key); |
| 1199 | if (!slot) { |
| 1200 | if (new_se_nacl) { |
| 1201 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); |
| 1202 | nacl->nport_id = key; |
| 1203 | rc = btree_insert32(&lport->lport_fcport_map, key, |
| 1204 | new_se_nacl, GFP_ATOMIC); |
| 1205 | if (rc) |
| 1206 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", |
| 1207 | (int)key); |
| 1208 | } else { |
| 1209 | pr_debug("Wiping nonexisting fc_port entry\n"); |
| 1210 | } |
| 1211 | |
| 1212 | qla_tgt_sess->se_sess = se_sess; |
| 1213 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1214 | return; |
| 1215 | } |
| 1216 | |
| 1217 | if (nacl->qla_tgt_sess) { |
| 1218 | if (new_se_nacl == NULL) { |
| 1219 | pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n"); |
| 1220 | btree_remove32(&lport->lport_fcport_map, key); |
| 1221 | nacl->qla_tgt_sess = NULL; |
| 1222 | return; |
| 1223 | } |
| 1224 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n"); |
| 1225 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); |
| 1226 | qla_tgt_sess->se_sess = se_sess; |
| 1227 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1228 | return; |
| 1229 | } |
| 1230 | |
| 1231 | if (new_se_nacl == NULL) { |
| 1232 | pr_debug("Clearing existing fc_port entry\n"); |
| 1233 | btree_remove32(&lport->lport_fcport_map, key); |
| 1234 | return; |
| 1235 | } |
| 1236 | |
| 1237 | pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n"); |
| 1238 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); |
| 1239 | qla_tgt_sess->se_sess = se_sess; |
| 1240 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1241 | |
| 1242 | pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n", |
| 1243 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); |
| 1244 | } |
| 1245 | |
| 1246 | /* |
Quinn Tran | 7560151 | 2015-12-17 14:57:04 -0500 | [diff] [blame] | 1247 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1248 | */ |
| 1249 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id( |
| 1250 | scsi_qla_host_t *vha, |
| 1251 | const uint16_t loop_id) |
| 1252 | { |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1253 | struct tcm_qla2xxx_lport *lport; |
| 1254 | struct se_node_acl *se_nacl; |
| 1255 | struct tcm_qla2xxx_nacl *nacl; |
| 1256 | struct tcm_qla2xxx_fc_loopid *fc_loopid; |
| 1257 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1258 | lport = vha->vha_tgt.target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1259 | if (!lport) { |
| 1260 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); |
| 1261 | dump_stack(); |
| 1262 | return NULL; |
| 1263 | } |
| 1264 | |
| 1265 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); |
| 1266 | |
| 1267 | fc_loopid = lport->lport_loopid_map + loop_id; |
| 1268 | se_nacl = fc_loopid->se_nacl; |
| 1269 | if (!se_nacl) { |
| 1270 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", |
| 1271 | loop_id); |
| 1272 | return NULL; |
| 1273 | } |
| 1274 | |
| 1275 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); |
| 1276 | |
| 1277 | if (!nacl->qla_tgt_sess) { |
| 1278 | pr_err("Unable to locate struct qla_tgt_sess\n"); |
| 1279 | return NULL; |
| 1280 | } |
| 1281 | |
| 1282 | return nacl->qla_tgt_sess; |
| 1283 | } |
| 1284 | |
| 1285 | /* |
Quinn Tran | 7560151 | 2015-12-17 14:57:04 -0500 | [diff] [blame] | 1286 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1287 | */ |
| 1288 | static void tcm_qla2xxx_set_sess_by_loop_id( |
| 1289 | struct tcm_qla2xxx_lport *lport, |
| 1290 | struct se_node_acl *new_se_nacl, |
| 1291 | struct tcm_qla2xxx_nacl *nacl, |
| 1292 | struct se_session *se_sess, |
| 1293 | struct qla_tgt_sess *qla_tgt_sess, |
| 1294 | uint16_t loop_id) |
| 1295 | { |
| 1296 | struct se_node_acl *saved_nacl; |
| 1297 | struct tcm_qla2xxx_fc_loopid *fc_loopid; |
| 1298 | |
| 1299 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); |
| 1300 | |
| 1301 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) |
| 1302 | lport->lport_loopid_map)[loop_id]; |
| 1303 | |
| 1304 | saved_nacl = fc_loopid->se_nacl; |
| 1305 | if (!saved_nacl) { |
| 1306 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); |
| 1307 | fc_loopid->se_nacl = new_se_nacl; |
| 1308 | if (qla_tgt_sess->se_sess != se_sess) |
| 1309 | qla_tgt_sess->se_sess = se_sess; |
| 1310 | if (nacl->qla_tgt_sess != qla_tgt_sess) |
| 1311 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1312 | return; |
| 1313 | } |
| 1314 | |
| 1315 | if (nacl->qla_tgt_sess) { |
| 1316 | if (new_se_nacl == NULL) { |
| 1317 | pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); |
| 1318 | fc_loopid->se_nacl = NULL; |
| 1319 | nacl->qla_tgt_sess = NULL; |
| 1320 | return; |
| 1321 | } |
| 1322 | |
| 1323 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); |
| 1324 | fc_loopid->se_nacl = new_se_nacl; |
| 1325 | if (qla_tgt_sess->se_sess != se_sess) |
| 1326 | qla_tgt_sess->se_sess = se_sess; |
| 1327 | if (nacl->qla_tgt_sess != qla_tgt_sess) |
| 1328 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1329 | return; |
| 1330 | } |
| 1331 | |
| 1332 | if (new_se_nacl == NULL) { |
| 1333 | pr_debug("Clearing fc_loopid->se_nacl\n"); |
| 1334 | fc_loopid->se_nacl = NULL; |
| 1335 | return; |
| 1336 | } |
| 1337 | |
| 1338 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n"); |
| 1339 | fc_loopid->se_nacl = new_se_nacl; |
| 1340 | if (qla_tgt_sess->se_sess != se_sess) |
| 1341 | qla_tgt_sess->se_sess = se_sess; |
| 1342 | if (nacl->qla_tgt_sess != qla_tgt_sess) |
| 1343 | nacl->qla_tgt_sess = qla_tgt_sess; |
| 1344 | |
| 1345 | pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n", |
| 1346 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); |
| 1347 | } |
| 1348 | |
Nicholas Bellinger | f2d5d9b | 2012-05-18 15:37:53 -0700 | [diff] [blame] | 1349 | /* |
Quinn Tran | 7560151 | 2015-12-17 14:57:04 -0500 | [diff] [blame] | 1350 | * Should always be called with qla_hw_data->tgt.sess_lock held. |
Nicholas Bellinger | f2d5d9b | 2012-05-18 15:37:53 -0700 | [diff] [blame] | 1351 | */ |
| 1352 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, |
| 1353 | struct tcm_qla2xxx_nacl *nacl, struct qla_tgt_sess *sess) |
| 1354 | { |
| 1355 | struct se_session *se_sess = sess->se_sess; |
| 1356 | unsigned char be_sid[3]; |
| 1357 | |
| 1358 | be_sid[0] = sess->s_id.b.domain; |
| 1359 | be_sid[1] = sess->s_id.b.area; |
| 1360 | be_sid[2] = sess->s_id.b.al_pa; |
| 1361 | |
| 1362 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, |
| 1363 | sess, be_sid); |
| 1364 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, |
| 1365 | sess, sess->loop_id); |
| 1366 | } |
| 1367 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1368 | static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess) |
| 1369 | { |
| 1370 | struct qla_tgt *tgt = sess->tgt; |
| 1371 | struct qla_hw_data *ha = tgt->ha; |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1372 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1373 | struct se_session *se_sess; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1374 | struct tcm_qla2xxx_lport *lport; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1375 | |
| 1376 | BUG_ON(in_interrupt()); |
| 1377 | |
| 1378 | se_sess = sess->se_sess; |
| 1379 | if (!se_sess) { |
| 1380 | pr_err("struct qla_tgt_sess->se_sess is NULL\n"); |
| 1381 | dump_stack(); |
| 1382 | return; |
| 1383 | } |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1384 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1385 | lport = vha->vha_tgt.target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1386 | if (!lport) { |
| 1387 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); |
| 1388 | dump_stack(); |
| 1389 | return; |
| 1390 | } |
Joern Engel | be646c2d | 2013-05-15 00:44:07 -0700 | [diff] [blame] | 1391 | target_wait_for_sess_cmds(se_sess); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1392 | |
| 1393 | transport_deregister_session_configfs(sess->se_sess); |
| 1394 | transport_deregister_session(sess->se_sess); |
| 1395 | } |
| 1396 | |
Nicholas Bellinger | 1b655b1 | 2016-01-09 06:47:58 -0800 | [diff] [blame] | 1397 | static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg, |
| 1398 | struct se_session *se_sess, void *p) |
| 1399 | { |
| 1400 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
| 1401 | struct tcm_qla2xxx_tpg, se_tpg); |
| 1402 | struct tcm_qla2xxx_lport *lport = tpg->lport; |
| 1403 | struct qla_hw_data *ha = lport->qla_vha->hw; |
| 1404 | struct se_node_acl *se_nacl = se_sess->se_node_acl; |
| 1405 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, |
| 1406 | struct tcm_qla2xxx_nacl, se_node_acl); |
| 1407 | struct qla_tgt_sess *qlat_sess = p; |
| 1408 | uint16_t loop_id = qlat_sess->loop_id; |
| 1409 | unsigned long flags; |
| 1410 | unsigned char be_sid[3]; |
| 1411 | |
| 1412 | be_sid[0] = qlat_sess->s_id.b.domain; |
| 1413 | be_sid[1] = qlat_sess->s_id.b.area; |
| 1414 | be_sid[2] = qlat_sess->s_id.b.al_pa; |
| 1415 | |
| 1416 | /* |
| 1417 | * And now setup se_nacl and session pointers into HW lport internal |
| 1418 | * mappings for fabric S_ID and LOOP_ID. |
| 1419 | */ |
| 1420 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
| 1421 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, |
| 1422 | se_sess, qlat_sess, be_sid); |
| 1423 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, |
| 1424 | se_sess, qlat_sess, loop_id); |
| 1425 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
| 1426 | |
| 1427 | return 0; |
| 1428 | } |
| 1429 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1430 | /* |
| 1431 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() |
| 1432 | * to locate struct se_node_acl |
| 1433 | */ |
| 1434 | static int tcm_qla2xxx_check_initiator_node_acl( |
| 1435 | scsi_qla_host_t *vha, |
| 1436 | unsigned char *fc_wwpn, |
Nicholas Bellinger | 1b655b1 | 2016-01-09 06:47:58 -0800 | [diff] [blame] | 1437 | struct qla_tgt_sess *qlat_sess) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1438 | { |
| 1439 | struct qla_hw_data *ha = vha->hw; |
| 1440 | struct tcm_qla2xxx_lport *lport; |
| 1441 | struct tcm_qla2xxx_tpg *tpg; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1442 | struct se_session *se_sess; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1443 | unsigned char port_name[36]; |
Quinn Tran | 03e8c68 | 2015-12-17 14:56:59 -0500 | [diff] [blame] | 1444 | int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count : |
Nicholas Bellinger | 51a07f8 | 2014-05-23 02:00:56 -0700 | [diff] [blame] | 1445 | TCM_QLA2XXX_DEFAULT_TAGS; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1446 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1447 | lport = vha->vha_tgt.target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1448 | if (!lport) { |
| 1449 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); |
| 1450 | dump_stack(); |
| 1451 | return -EINVAL; |
| 1452 | } |
| 1453 | /* |
| 1454 | * Locate the TPG=1 reference.. |
| 1455 | */ |
| 1456 | tpg = lport->tpg_1; |
| 1457 | if (!tpg) { |
| 1458 | pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n"); |
| 1459 | return -EINVAL; |
| 1460 | } |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1461 | /* |
| 1462 | * Format the FCP Initiator port_name into colon seperated values to |
| 1463 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. |
| 1464 | */ |
| 1465 | memset(&port_name, 0, 36); |
Andy Shevchenko | 3c9786e | 2015-01-15 13:28:07 +0200 | [diff] [blame] | 1466 | snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1467 | /* |
| 1468 | * Locate our struct se_node_acl either from an explict NodeACL created |
| 1469 | * via ConfigFS, or via running in TPG demo mode. |
| 1470 | */ |
Nicholas Bellinger | 1b655b1 | 2016-01-09 06:47:58 -0800 | [diff] [blame] | 1471 | se_sess = target_alloc_session(&tpg->se_tpg, num_tags, |
| 1472 | sizeof(struct qla_tgt_cmd), |
| 1473 | TARGET_PROT_ALL, port_name, |
| 1474 | qlat_sess, tcm_qla2xxx_session_cb); |
| 1475 | if (IS_ERR(se_sess)) |
| 1476 | return PTR_ERR(se_sess); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1477 | |
| 1478 | return 0; |
| 1479 | } |
| 1480 | |
Roland Dreier | c8292d1 | 2012-10-11 13:41:32 -0700 | [diff] [blame] | 1481 | static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id, |
| 1482 | uint16_t loop_id, bool conf_compl_supported) |
| 1483 | { |
| 1484 | struct qla_tgt *tgt = sess->tgt; |
| 1485 | struct qla_hw_data *ha = tgt->ha; |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1486 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
| 1487 | struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr; |
Roland Dreier | c8292d1 | 2012-10-11 13:41:32 -0700 | [diff] [blame] | 1488 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
| 1489 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, |
| 1490 | struct tcm_qla2xxx_nacl, se_node_acl); |
| 1491 | u32 key; |
| 1492 | |
| 1493 | |
| 1494 | 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] | 1495 | pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", |
| 1496 | sess, sess->port_name, |
| 1497 | sess->loop_id, loop_id, sess->s_id.b.domain, |
| 1498 | sess->s_id.b.area, sess->s_id.b.al_pa, s_id.b.domain, |
| 1499 | s_id.b.area, s_id.b.al_pa); |
Roland Dreier | c8292d1 | 2012-10-11 13:41:32 -0700 | [diff] [blame] | 1500 | |
| 1501 | if (sess->loop_id != loop_id) { |
| 1502 | /* |
| 1503 | * Because we can shuffle loop IDs around and we |
| 1504 | * update different sessions non-atomically, we might |
| 1505 | * have overwritten this session's old loop ID |
| 1506 | * already, and we might end up overwriting some other |
| 1507 | * session that will be updated later. So we have to |
| 1508 | * be extra careful and we can't warn about those things... |
| 1509 | */ |
| 1510 | if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) |
| 1511 | lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; |
| 1512 | |
| 1513 | lport->lport_loopid_map[loop_id].se_nacl = se_nacl; |
| 1514 | |
| 1515 | sess->loop_id = loop_id; |
| 1516 | } |
| 1517 | |
| 1518 | if (sess->s_id.b24 != s_id.b24) { |
| 1519 | key = (((u32) sess->s_id.b.domain << 16) | |
| 1520 | ((u32) sess->s_id.b.area << 8) | |
| 1521 | ((u32) sess->s_id.b.al_pa)); |
| 1522 | |
| 1523 | if (btree_lookup32(&lport->lport_fcport_map, key)) |
| 1524 | WARN(btree_remove32(&lport->lport_fcport_map, key) != se_nacl, |
| 1525 | "Found wrong se_nacl when updating s_id %x:%x:%x\n", |
| 1526 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); |
| 1527 | else |
| 1528 | WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", |
| 1529 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); |
| 1530 | |
| 1531 | key = (((u32) s_id.b.domain << 16) | |
| 1532 | ((u32) s_id.b.area << 8) | |
| 1533 | ((u32) s_id.b.al_pa)); |
| 1534 | |
| 1535 | if (btree_lookup32(&lport->lport_fcport_map, key)) { |
| 1536 | WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", |
| 1537 | s_id.b.domain, s_id.b.area, s_id.b.al_pa); |
| 1538 | btree_update32(&lport->lport_fcport_map, key, se_nacl); |
| 1539 | } else { |
| 1540 | btree_insert32(&lport->lport_fcport_map, key, se_nacl, GFP_ATOMIC); |
| 1541 | } |
| 1542 | |
| 1543 | sess->s_id = s_id; |
| 1544 | nacl->nport_id = key; |
| 1545 | } |
| 1546 | |
| 1547 | sess->conf_compl_supported = conf_compl_supported; |
Alexei Potashnik | a6ca887 | 2015-07-14 16:00:44 -0400 | [diff] [blame] | 1548 | |
| 1549 | /* Reset logout parameters to default */ |
| 1550 | sess->logout_on_delete = 1; |
| 1551 | sess->keep_nport_handle = 0; |
Roland Dreier | c8292d1 | 2012-10-11 13:41:32 -0700 | [diff] [blame] | 1552 | } |
| 1553 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1554 | /* |
| 1555 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. |
| 1556 | */ |
| 1557 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { |
| 1558 | .handle_cmd = tcm_qla2xxx_handle_cmd, |
| 1559 | .handle_data = tcm_qla2xxx_handle_data, |
Quinn Tran | f83adb6 | 2014-04-11 16:54:43 -0400 | [diff] [blame] | 1560 | .handle_dif_err = tcm_qla2xxx_handle_dif_err, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1561 | .handle_tmr = tcm_qla2xxx_handle_tmr, |
| 1562 | .free_cmd = tcm_qla2xxx_free_cmd, |
| 1563 | .free_mcmd = tcm_qla2xxx_free_mcmd, |
| 1564 | .free_session = tcm_qla2xxx_free_session, |
Roland Dreier | c8292d1 | 2012-10-11 13:41:32 -0700 | [diff] [blame] | 1565 | .update_sess = tcm_qla2xxx_update_sess, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1566 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, |
| 1567 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, |
| 1568 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, |
| 1569 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1570 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, |
| 1571 | }; |
| 1572 | |
| 1573 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) |
| 1574 | { |
| 1575 | int rc; |
| 1576 | |
| 1577 | rc = btree_init32(&lport->lport_fcport_map); |
| 1578 | if (rc) { |
| 1579 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); |
| 1580 | return rc; |
| 1581 | } |
| 1582 | |
| 1583 | lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * |
| 1584 | 65536); |
| 1585 | if (!lport->lport_loopid_map) { |
| 1586 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", |
| 1587 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); |
| 1588 | btree_destroy32(&lport->lport_fcport_map); |
| 1589 | return -ENOMEM; |
| 1590 | } |
| 1591 | memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid) |
| 1592 | * 65536); |
| 1593 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", |
| 1594 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); |
| 1595 | return 0; |
| 1596 | } |
| 1597 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1598 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha, |
| 1599 | void *target_lport_ptr, |
| 1600 | u64 npiv_wwpn, u64 npiv_wwnn) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1601 | { |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1602 | struct qla_hw_data *ha = vha->hw; |
| 1603 | struct tcm_qla2xxx_lport *lport = |
| 1604 | (struct tcm_qla2xxx_lport *)target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1605 | /* |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1606 | * Setup tgt_ops, local pointer to vha and target_lport_ptr |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1607 | */ |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1608 | ha->tgt.tgt_ops = &tcm_qla2xxx_template; |
| 1609 | vha->vha_tgt.target_lport_ptr = target_lport_ptr; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1610 | lport->qla_vha = vha; |
| 1611 | |
| 1612 | return 0; |
| 1613 | } |
| 1614 | |
| 1615 | static struct se_wwn *tcm_qla2xxx_make_lport( |
| 1616 | struct target_fabric_configfs *tf, |
| 1617 | struct config_group *group, |
| 1618 | const char *name) |
| 1619 | { |
| 1620 | struct tcm_qla2xxx_lport *lport; |
| 1621 | u64 wwpn; |
| 1622 | int ret = -ENODEV; |
| 1623 | |
| 1624 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) |
| 1625 | return ERR_PTR(-EINVAL); |
| 1626 | |
| 1627 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); |
| 1628 | if (!lport) { |
| 1629 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); |
| 1630 | return ERR_PTR(-ENOMEM); |
| 1631 | } |
| 1632 | lport->lport_wwpn = wwpn; |
| 1633 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, |
| 1634 | wwpn); |
Roland Dreier | c046aa0 | 2012-10-11 13:41:31 -0700 | [diff] [blame] | 1635 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1636 | |
| 1637 | ret = tcm_qla2xxx_init_lport(lport); |
| 1638 | if (ret != 0) |
| 1639 | goto out; |
| 1640 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1641 | ret = qlt_lport_register(lport, wwpn, 0, 0, |
| 1642 | tcm_qla2xxx_lport_register_cb); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1643 | if (ret != 0) |
| 1644 | goto out_lport; |
| 1645 | |
| 1646 | return &lport->lport_wwn; |
| 1647 | out_lport: |
| 1648 | vfree(lport->lport_loopid_map); |
| 1649 | btree_destroy32(&lport->lport_fcport_map); |
| 1650 | out: |
| 1651 | kfree(lport); |
| 1652 | return ERR_PTR(ret); |
| 1653 | } |
| 1654 | |
| 1655 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) |
| 1656 | { |
| 1657 | struct tcm_qla2xxx_lport *lport = container_of(wwn, |
| 1658 | struct tcm_qla2xxx_lport, lport_wwn); |
| 1659 | struct scsi_qla_host *vha = lport->qla_vha; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1660 | struct se_node_acl *node; |
| 1661 | u32 key = 0; |
| 1662 | |
| 1663 | /* |
| 1664 | * Call into qla2x_target.c LLD logic to complete the |
| 1665 | * shutdown of struct qla_tgt after the call to |
| 1666 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. |
| 1667 | */ |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1668 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped) |
| 1669 | qlt_stop_phase2(vha->vha_tgt.qla_tgt); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1670 | |
| 1671 | qlt_lport_deregister(vha); |
| 1672 | |
| 1673 | vfree(lport->lport_loopid_map); |
| 1674 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) |
| 1675 | btree_remove32(&lport->lport_fcport_map, key); |
| 1676 | btree_destroy32(&lport->lport_fcport_map); |
| 1677 | kfree(lport); |
| 1678 | } |
| 1679 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1680 | static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha, |
| 1681 | void *target_lport_ptr, |
| 1682 | u64 npiv_wwpn, u64 npiv_wwnn) |
| 1683 | { |
| 1684 | struct fc_vport *vport; |
| 1685 | struct Scsi_Host *sh = base_vha->host; |
| 1686 | struct scsi_qla_host *npiv_vha; |
| 1687 | struct tcm_qla2xxx_lport *lport = |
| 1688 | (struct tcm_qla2xxx_lport *)target_lport_ptr; |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 1689 | struct tcm_qla2xxx_lport *base_lport = |
| 1690 | (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr; |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1691 | struct fc_vport_identifiers vport_id; |
| 1692 | |
| 1693 | if (!qla_tgt_mode_enabled(base_vha)) { |
| 1694 | pr_err("qla2xxx base_vha not enabled for target mode\n"); |
| 1695 | return -EPERM; |
| 1696 | } |
| 1697 | |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 1698 | if (!base_lport || !base_lport->tpg_1 || |
| 1699 | !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) { |
| 1700 | pr_err("qla2xxx base_lport or tpg_1 not available\n"); |
| 1701 | return -EPERM; |
| 1702 | } |
Nicholas Bellinger | 7474f52 | 2014-02-19 16:53:07 -0800 | [diff] [blame] | 1703 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1704 | memset(&vport_id, 0, sizeof(vport_id)); |
| 1705 | vport_id.port_name = npiv_wwpn; |
| 1706 | vport_id.node_name = npiv_wwnn; |
| 1707 | vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; |
| 1708 | vport_id.vport_type = FC_PORTTYPE_NPIV; |
| 1709 | vport_id.disable = false; |
| 1710 | |
| 1711 | vport = fc_vport_create(sh, 0, &vport_id); |
| 1712 | if (!vport) { |
| 1713 | pr_err("fc_vport_create failed for qla2xxx_npiv\n"); |
| 1714 | return -ENODEV; |
| 1715 | } |
| 1716 | /* |
| 1717 | * Setup local pointer to NPIV vhba + target_lport_ptr |
| 1718 | */ |
| 1719 | npiv_vha = (struct scsi_qla_host *)vport->dd_data; |
| 1720 | npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr; |
| 1721 | lport->qla_vha = npiv_vha; |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1722 | scsi_host_get(npiv_vha->host); |
| 1723 | return 0; |
| 1724 | } |
| 1725 | |
| 1726 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1727 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( |
| 1728 | struct target_fabric_configfs *tf, |
| 1729 | struct config_group *group, |
| 1730 | const char *name) |
| 1731 | { |
| 1732 | struct tcm_qla2xxx_lport *lport; |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1733 | u64 phys_wwpn, npiv_wwpn, npiv_wwnn; |
| 1734 | char *p, tmp[128]; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1735 | int ret; |
| 1736 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1737 | snprintf(tmp, 128, "%s", name); |
| 1738 | |
| 1739 | p = strchr(tmp, '@'); |
| 1740 | if (!p) { |
| 1741 | pr_err("Unable to locate NPIV '@' seperator\n"); |
| 1742 | return ERR_PTR(-EINVAL); |
| 1743 | } |
| 1744 | *p++ = '\0'; |
| 1745 | |
| 1746 | if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0) |
| 1747 | return ERR_PTR(-EINVAL); |
| 1748 | |
| 1749 | if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1, |
| 1750 | &npiv_wwpn, &npiv_wwnn) < 0) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1751 | return ERR_PTR(-EINVAL); |
| 1752 | |
| 1753 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); |
| 1754 | if (!lport) { |
| 1755 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); |
| 1756 | return ERR_PTR(-ENOMEM); |
| 1757 | } |
| 1758 | lport->lport_npiv_wwpn = npiv_wwpn; |
| 1759 | lport->lport_npiv_wwnn = npiv_wwnn; |
Roland Dreier | c046aa0 | 2012-10-11 13:41:31 -0700 | [diff] [blame] | 1760 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1761 | |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1762 | ret = tcm_qla2xxx_init_lport(lport); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1763 | if (ret != 0) |
| 1764 | goto out; |
| 1765 | |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1766 | ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn, |
| 1767 | tcm_qla2xxx_lport_register_npiv_cb); |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1768 | if (ret != 0) |
| 1769 | goto out_lport; |
| 1770 | |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1771 | return &lport->lport_wwn; |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1772 | out_lport: |
| 1773 | vfree(lport->lport_loopid_map); |
| 1774 | btree_destroy32(&lport->lport_fcport_map); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1775 | out: |
| 1776 | kfree(lport); |
| 1777 | return ERR_PTR(ret); |
| 1778 | } |
| 1779 | |
| 1780 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) |
| 1781 | { |
| 1782 | struct tcm_qla2xxx_lport *lport = container_of(wwn, |
| 1783 | struct tcm_qla2xxx_lport, lport_wwn); |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1784 | struct scsi_qla_host *npiv_vha = lport->qla_vha; |
| 1785 | struct qla_hw_data *ha = npiv_vha->hw; |
| 1786 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); |
| 1787 | |
| 1788 | scsi_host_put(npiv_vha->host); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1789 | /* |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1790 | * Notify libfc that we want to release the vha->fc_vport |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1791 | */ |
Nicholas Bellinger | 49a47f2 | 2014-01-14 20:38:58 -0800 | [diff] [blame] | 1792 | fc_vport_terminate(npiv_vha->fc_vport); |
| 1793 | scsi_host_put(base_vha->host); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1794 | kfree(lport); |
| 1795 | } |
| 1796 | |
| 1797 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 1798 | static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item, |
| 1799 | char *page) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1800 | { |
| 1801 | return sprintf(page, |
| 1802 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on " |
Himanshu Madhani | 2a47c68 | 2016-12-23 18:06:07 -0800 | [diff] [blame] | 1803 | UTS_RELEASE"\n", QLA2XXX_VERSION, utsname()->sysname, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1804 | utsname()->machine); |
| 1805 | } |
| 1806 | |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 1807 | CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1808 | |
| 1809 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { |
Christoph Hellwig | 2eafd72 | 2015-10-03 15:32:55 +0200 | [diff] [blame] | 1810 | &tcm_qla2xxx_wwn_attr_version, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1811 | NULL, |
| 1812 | }; |
| 1813 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1814 | static const struct target_core_fabric_ops tcm_qla2xxx_ops = { |
| 1815 | .module = THIS_MODULE, |
| 1816 | .name = "qla2xxx", |
Christoph Hellwig | 144bc4c | 2015-04-13 19:51:16 +0200 | [diff] [blame] | 1817 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
Nicholas Bellinger | 8f9b565 | 2015-07-30 18:28:13 -0700 | [diff] [blame] | 1818 | /* |
| 1819 | * XXX: Limit assumes single page per scatter-gather-list entry. |
| 1820 | * Current maximum is ~4.9 MB per se_cmd->t_data_sg with PAGE_SIZE=4096 |
| 1821 | */ |
| 1822 | .max_data_sg_nents = 1200, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1823 | .get_fabric_name = tcm_qla2xxx_get_fabric_name, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1824 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
| 1825 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1826 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
| 1827 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, |
| 1828 | .tpg_check_demo_mode_write_protect = |
| 1829 | tcm_qla2xxx_check_demo_write_protect, |
| 1830 | .tpg_check_prod_mode_write_protect = |
| 1831 | tcm_qla2xxx_check_prod_write_protect, |
Nicholas Bellinger | 64b1688 | 2015-03-27 23:30:57 -0700 | [diff] [blame] | 1832 | .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only, |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 1833 | .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] | 1834 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1835 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
| 1836 | .release_cmd = tcm_qla2xxx_release_cmd, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1837 | .close_session = tcm_qla2xxx_close_session, |
| 1838 | .sess_get_index = tcm_qla2xxx_sess_get_index, |
| 1839 | .sess_get_initiator_sid = NULL, |
| 1840 | .write_pending = tcm_qla2xxx_write_pending, |
| 1841 | .write_pending_status = tcm_qla2xxx_write_pending_status, |
| 1842 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1843 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
| 1844 | .queue_data_in = tcm_qla2xxx_queue_data_in, |
| 1845 | .queue_status = tcm_qla2xxx_queue_status, |
| 1846 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, |
Nicholas Bellinger | 131e6ab | 2014-03-22 14:55:56 -0700 | [diff] [blame] | 1847 | .aborted_task = tcm_qla2xxx_aborted_task, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1848 | /* |
| 1849 | * Setup function pointers for generic logic in |
| 1850 | * target_core_fabric_configfs.c |
| 1851 | */ |
| 1852 | .fabric_make_wwn = tcm_qla2xxx_make_lport, |
| 1853 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, |
| 1854 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, |
| 1855 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, |
Christoph Hellwig | c7d6a80 | 2015-04-13 19:51:14 +0200 | [diff] [blame] | 1856 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1857 | |
| 1858 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, |
| 1859 | .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs, |
| 1860 | .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1861 | }; |
| 1862 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1863 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { |
| 1864 | .module = THIS_MODULE, |
| 1865 | .name = "qla2xxx_npiv", |
Christoph Hellwig | 144bc4c | 2015-04-13 19:51:16 +0200 | [diff] [blame] | 1866 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1867 | .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name, |
Nicholas Bellinger | 84197a3 | 2014-01-30 09:52:21 -0800 | [diff] [blame] | 1868 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1869 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1870 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
| 1871 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, |
| 1872 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode, |
| 1873 | .tpg_check_prod_mode_write_protect = |
| 1874 | tcm_qla2xxx_check_prod_write_protect, |
Andy Grover | de04a8a | 2013-07-19 15:06:38 -0700 | [diff] [blame] | 1875 | .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] | 1876 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
Saurav Kashyap | 0e8cd71 | 2014-01-14 20:40:38 -0800 | [diff] [blame] | 1877 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1878 | .release_cmd = tcm_qla2xxx_release_cmd, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1879 | .close_session = tcm_qla2xxx_close_session, |
| 1880 | .sess_get_index = tcm_qla2xxx_sess_get_index, |
| 1881 | .sess_get_initiator_sid = NULL, |
| 1882 | .write_pending = tcm_qla2xxx_write_pending, |
| 1883 | .write_pending_status = tcm_qla2xxx_write_pending_status, |
| 1884 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1885 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
| 1886 | .queue_data_in = tcm_qla2xxx_queue_data_in, |
| 1887 | .queue_status = tcm_qla2xxx_queue_status, |
| 1888 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, |
Nicholas Bellinger | 131e6ab | 2014-03-22 14:55:56 -0700 | [diff] [blame] | 1889 | .aborted_task = tcm_qla2xxx_aborted_task, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1890 | /* |
| 1891 | * Setup function pointers for generic logic in |
| 1892 | * target_core_fabric_configfs.c |
| 1893 | */ |
| 1894 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, |
| 1895 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, |
| 1896 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, |
| 1897 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, |
Christoph Hellwig | c7d6a80 | 2015-04-13 19:51:14 +0200 | [diff] [blame] | 1898 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1899 | |
| 1900 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, |
| 1901 | .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1902 | }; |
| 1903 | |
| 1904 | static int tcm_qla2xxx_register_configfs(void) |
| 1905 | { |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1906 | int ret; |
| 1907 | |
| 1908 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on " |
Himanshu Madhani | 2a47c68 | 2016-12-23 18:06:07 -0800 | [diff] [blame] | 1909 | UTS_RELEASE"\n", QLA2XXX_VERSION, utsname()->sysname, |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1910 | utsname()->machine); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1911 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1912 | ret = target_register_template(&tcm_qla2xxx_ops); |
| 1913 | if (ret) |
| 1914 | return ret; |
| 1915 | |
| 1916 | ret = target_register_template(&tcm_qla2xxx_npiv_ops); |
| 1917 | if (ret) |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1918 | goto out_fabric; |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1919 | |
| 1920 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", |
| 1921 | WQ_MEM_RECLAIM, 0); |
| 1922 | if (!tcm_qla2xxx_free_wq) { |
| 1923 | ret = -ENOMEM; |
| 1924 | goto out_fabric_npiv; |
| 1925 | } |
| 1926 | |
| 1927 | tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0); |
| 1928 | if (!tcm_qla2xxx_cmd_wq) { |
| 1929 | ret = -ENOMEM; |
| 1930 | goto out_free_wq; |
| 1931 | } |
| 1932 | |
| 1933 | return 0; |
| 1934 | |
| 1935 | out_free_wq: |
| 1936 | destroy_workqueue(tcm_qla2xxx_free_wq); |
| 1937 | out_fabric_npiv: |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1938 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1939 | out_fabric: |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1940 | target_unregister_template(&tcm_qla2xxx_ops); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1941 | return ret; |
| 1942 | } |
| 1943 | |
| 1944 | static void tcm_qla2xxx_deregister_configfs(void) |
| 1945 | { |
| 1946 | destroy_workqueue(tcm_qla2xxx_cmd_wq); |
| 1947 | destroy_workqueue(tcm_qla2xxx_free_wq); |
| 1948 | |
Christoph Hellwig | 9ac8928 | 2015-04-08 20:01:35 +0200 | [diff] [blame] | 1949 | target_unregister_template(&tcm_qla2xxx_ops); |
| 1950 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1951 | } |
| 1952 | |
| 1953 | static int __init tcm_qla2xxx_init(void) |
| 1954 | { |
| 1955 | int ret; |
| 1956 | |
| 1957 | ret = tcm_qla2xxx_register_configfs(); |
| 1958 | if (ret < 0) |
| 1959 | return ret; |
| 1960 | |
| 1961 | return 0; |
| 1962 | } |
| 1963 | |
| 1964 | static void __exit tcm_qla2xxx_exit(void) |
| 1965 | { |
| 1966 | tcm_qla2xxx_deregister_configfs(); |
| 1967 | } |
| 1968 | |
Sebastian Herbszt | 24c7d6c | 2015-08-03 00:21:50 +0200 | [diff] [blame] | 1969 | MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver"); |
Nicholas Bellinger | 75f8c1f | 2012-05-15 14:34:29 -0400 | [diff] [blame] | 1970 | MODULE_LICENSE("GPL"); |
| 1971 | module_init(tcm_qla2xxx_init); |
| 1972 | module_exit(tcm_qla2xxx_exit); |