1afaf5a2dSDavid Somayajulu /* 2afaf5a2dSDavid Somayajulu * QLogic iSCSI HBA Driver 37d01d069SVikas Chaudhary * Copyright (c) 2003-2010 QLogic Corporation 4afaf5a2dSDavid Somayajulu * 5afaf5a2dSDavid Somayajulu * See LICENSE.qla4xxx for copyright and licensing details. 6afaf5a2dSDavid Somayajulu */ 7afaf5a2dSDavid Somayajulu #include <linux/moduleparam.h> 85a0e3ad6STejun Heo #include <linux/slab.h> 92a991c21SManish Rangankar #include <linux/blkdev.h> 102a991c21SManish Rangankar #include <linux/iscsi_boot_sysfs.h> 1113483730SMike Christie #include <linux/inet.h> 12afaf5a2dSDavid Somayajulu 13afaf5a2dSDavid Somayajulu #include <scsi/scsi_tcq.h> 14afaf5a2dSDavid Somayajulu #include <scsi/scsicam.h> 15afaf5a2dSDavid Somayajulu 16afaf5a2dSDavid Somayajulu #include "ql4_def.h" 17bee4fe8eSDavid C Somayajulu #include "ql4_version.h" 18bee4fe8eSDavid C Somayajulu #include "ql4_glbl.h" 19bee4fe8eSDavid C Somayajulu #include "ql4_dbg.h" 20bee4fe8eSDavid C Somayajulu #include "ql4_inline.h" 21afaf5a2dSDavid Somayajulu 22afaf5a2dSDavid Somayajulu /* 23afaf5a2dSDavid Somayajulu * Driver version 24afaf5a2dSDavid Somayajulu */ 2547975477SAdrian Bunk static char qla4xxx_version_str[40]; 26afaf5a2dSDavid Somayajulu 27afaf5a2dSDavid Somayajulu /* 28afaf5a2dSDavid Somayajulu * SRB allocation cache 29afaf5a2dSDavid Somayajulu */ 30e18b890bSChristoph Lameter static struct kmem_cache *srb_cachep; 31afaf5a2dSDavid Somayajulu 32afaf5a2dSDavid Somayajulu /* 33afaf5a2dSDavid Somayajulu * Module parameter information and variables 34afaf5a2dSDavid Somayajulu */ 35a7380a65SVikas Chaudhary static int ql4xdisablesysfsboot = 1; 3613483730SMike Christie module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR); 3713483730SMike Christie MODULE_PARM_DESC(ql4xdisablesysfsboot, 38a4e8a715SKaren Higgins " Set to disable exporting boot targets to sysfs.\n" 39a4e8a715SKaren Higgins "\t\t 0 - Export boot targets\n" 40a4e8a715SKaren Higgins "\t\t 1 - Do not export boot targets (Default)"); 4113483730SMike Christie 423573bfb2SVikas Chaudhary int ql4xdontresethba; 43f4f5df23SVikas Chaudhary module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 44afaf5a2dSDavid Somayajulu MODULE_PARM_DESC(ql4xdontresethba, 45a4e8a715SKaren Higgins " Don't reset the HBA for driver recovery.\n" 46a4e8a715SKaren Higgins "\t\t 0 - It will reset HBA (Default)\n" 47a4e8a715SKaren Higgins "\t\t 1 - It will NOT reset HBA"); 48afaf5a2dSDavid Somayajulu 49a4e8a715SKaren Higgins int ql4xextended_error_logging; 50f4f5df23SVikas Chaudhary module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 5111010fecSAndrew Vasquez MODULE_PARM_DESC(ql4xextended_error_logging, 52a4e8a715SKaren Higgins " Option to enable extended error logging.\n" 53a4e8a715SKaren Higgins "\t\t 0 - no logging (Default)\n" 54a4e8a715SKaren Higgins "\t\t 2 - debug logging"); 55afaf5a2dSDavid Somayajulu 56f4f5df23SVikas Chaudhary int ql4xenablemsix = 1; 57f4f5df23SVikas Chaudhary module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 58f4f5df23SVikas Chaudhary MODULE_PARM_DESC(ql4xenablemsix, 59f4f5df23SVikas Chaudhary " Set to enable MSI or MSI-X interrupt mechanism.\n" 60a4e8a715SKaren Higgins "\t\t 0 = enable INTx interrupt mechanism.\n" 61a4e8a715SKaren Higgins "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n" 62a4e8a715SKaren Higgins "\t\t 2 = enable MSI interrupt mechanism."); 63477ffb9dSDavid C Somayajulu 64d510d965SMike Christie #define QL4_DEF_QDEPTH 32 658bb4033dSVikas Chaudhary static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 668bb4033dSVikas Chaudhary module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 678bb4033dSVikas Chaudhary MODULE_PARM_DESC(ql4xmaxqdepth, 688bb4033dSVikas Chaudhary " Maximum queue depth to report for target devices.\n" 69a4e8a715SKaren Higgins "\t\t Default: 32."); 70d510d965SMike Christie 71f7b4aa63STej Parkash static int ql4xqfulltracking = 1; 72f7b4aa63STej Parkash module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR); 73f7b4aa63STej Parkash MODULE_PARM_DESC(ql4xqfulltracking, 74f7b4aa63STej Parkash " Enable or disable dynamic tracking and adjustment of\n" 75f7b4aa63STej Parkash "\t\t scsi device queue depth.\n" 76f7b4aa63STej Parkash "\t\t 0 - Disable.\n" 77f7b4aa63STej Parkash "\t\t 1 - Enable. (Default)"); 78f7b4aa63STej Parkash 793038727cSVikas Chaudhary static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 803038727cSVikas Chaudhary module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 813038727cSVikas Chaudhary MODULE_PARM_DESC(ql4xsess_recovery_tmo, 823038727cSVikas Chaudhary " Target Session Recovery Timeout.\n" 83a4e8a715SKaren Higgins "\t\t Default: 120 sec."); 843038727cSVikas Chaudhary 85068237c8STej Parkash int ql4xmdcapmask = 0x1F; 86068237c8STej Parkash module_param(ql4xmdcapmask, int, S_IRUGO); 87068237c8STej Parkash MODULE_PARM_DESC(ql4xmdcapmask, 88068237c8STej Parkash " Set the Minidump driver capture mask level.\n" 89068237c8STej Parkash "\t\t Default is 0x1F.\n" 90068237c8STej Parkash "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F"); 91068237c8STej Parkash 92068237c8STej Parkash int ql4xenablemd = 1; 93068237c8STej Parkash module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR); 94068237c8STej Parkash MODULE_PARM_DESC(ql4xenablemd, 95068237c8STej Parkash " Set to enable minidump.\n" 96068237c8STej Parkash "\t\t 0 - disable minidump\n" 97068237c8STej Parkash "\t\t 1 - enable minidump (Default)"); 98068237c8STej Parkash 99b3a271a9SManish Rangankar static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 100afaf5a2dSDavid Somayajulu /* 101afaf5a2dSDavid Somayajulu * SCSI host template entry points 102afaf5a2dSDavid Somayajulu */ 10347975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 104afaf5a2dSDavid Somayajulu 105afaf5a2dSDavid Somayajulu /* 106afaf5a2dSDavid Somayajulu * iSCSI template entry points 107afaf5a2dSDavid Somayajulu */ 108fca9f04dSMike Christie static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 109fca9f04dSMike Christie enum iscsi_param param, char *buf); 110afaf5a2dSDavid Somayajulu static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 111afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf); 112aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 113aa1e93a2SMike Christie enum iscsi_host_param param, char *buf); 11400c31889SMike Christie static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, 11500c31889SMike Christie uint32_t len); 116ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 117ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 118ed1086e0SVikas Chaudhary int param, char *buf); 1195c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 120b3a271a9SManish Rangankar static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 121b3a271a9SManish Rangankar struct sockaddr *dst_addr, 122b3a271a9SManish Rangankar int non_blocking); 123b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 124b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 125b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 126b3a271a9SManish Rangankar enum iscsi_param param, char *buf); 127b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 128b3a271a9SManish Rangankar static struct iscsi_cls_conn * 129b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 130b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 131b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 132b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading); 133b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 134b3a271a9SManish Rangankar static struct iscsi_cls_session * 135b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 136b3a271a9SManish Rangankar uint16_t qdepth, uint32_t initial_cmdsn); 137b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 138b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata); 139b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 140b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *); 141b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *); 142b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 143b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 144b3a271a9SManish Rangankar struct iscsi_stats *stats); 145c0b9d3f7SVikas Chaudhary static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 146c0b9d3f7SVikas Chaudhary uint32_t iface_type, uint32_t payload_size, 147c0b9d3f7SVikas Chaudhary uint32_t pid, struct sockaddr *dst_addr); 148376738afSNilesh Javali static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 149376738afSNilesh Javali uint32_t *num_entries, char *buf); 150376738afSNilesh Javali static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx); 151c0b9d3f7SVikas Chaudhary 152afaf5a2dSDavid Somayajulu /* 153afaf5a2dSDavid Somayajulu * SCSI host template entry points 154afaf5a2dSDavid Somayajulu */ 155f281233dSJeff Garzik static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 15609a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 157afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 158ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 159afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 160afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *device); 161afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *device); 162afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev); 1635e9bcec7SVikas Chaudhary static umode_t qla4_attr_is_visible(int param_type, int param); 16495d31262SVikas Chaudhary static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); 165f7b4aa63STej Parkash static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 166f7b4aa63STej Parkash int reason); 167afaf5a2dSDavid Somayajulu 168f4f5df23SVikas Chaudhary static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 169f4f5df23SVikas Chaudhary QLA82XX_LEGACY_INTR_CONFIG; 170f4f5df23SVikas Chaudhary 171afaf5a2dSDavid Somayajulu static struct scsi_host_template qla4xxx_driver_template = { 172afaf5a2dSDavid Somayajulu .module = THIS_MODULE, 173afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 174afaf5a2dSDavid Somayajulu .proc_name = DRIVER_NAME, 175afaf5a2dSDavid Somayajulu .queuecommand = qla4xxx_queuecommand, 176afaf5a2dSDavid Somayajulu 17709a0f719SVikas Chaudhary .eh_abort_handler = qla4xxx_eh_abort, 178afaf5a2dSDavid Somayajulu .eh_device_reset_handler = qla4xxx_eh_device_reset, 179ce545039SMike Christie .eh_target_reset_handler = qla4xxx_eh_target_reset, 180afaf5a2dSDavid Somayajulu .eh_host_reset_handler = qla4xxx_eh_host_reset, 1815c656af7SMike Christie .eh_timed_out = qla4xxx_eh_cmd_timed_out, 182afaf5a2dSDavid Somayajulu 183afaf5a2dSDavid Somayajulu .slave_configure = qla4xxx_slave_configure, 184afaf5a2dSDavid Somayajulu .slave_alloc = qla4xxx_slave_alloc, 185afaf5a2dSDavid Somayajulu .slave_destroy = qla4xxx_slave_destroy, 186f7b4aa63STej Parkash .change_queue_depth = qla4xxx_change_queue_depth, 187afaf5a2dSDavid Somayajulu 188afaf5a2dSDavid Somayajulu .this_id = -1, 189afaf5a2dSDavid Somayajulu .cmd_per_lun = 3, 190afaf5a2dSDavid Somayajulu .use_clustering = ENABLE_CLUSTERING, 191afaf5a2dSDavid Somayajulu .sg_tablesize = SG_ALL, 192afaf5a2dSDavid Somayajulu 193afaf5a2dSDavid Somayajulu .max_sectors = 0xFFFF, 1947ad633c0SHarish Zunjarrao .shost_attrs = qla4xxx_host_attrs, 19595d31262SVikas Chaudhary .host_reset = qla4xxx_host_reset, 196a355943cSVikas Chaudhary .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 197afaf5a2dSDavid Somayajulu }; 198afaf5a2dSDavid Somayajulu 199afaf5a2dSDavid Somayajulu static struct iscsi_transport qla4xxx_iscsi_transport = { 200afaf5a2dSDavid Somayajulu .owner = THIS_MODULE, 201afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 202b3a271a9SManish Rangankar .caps = CAP_TEXT_NEGO | 203b3a271a9SManish Rangankar CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 204b3a271a9SManish Rangankar CAP_DATADGST | CAP_LOGIN_OFFLOAD | 205b3a271a9SManish Rangankar CAP_MULTI_R2T, 2065e9bcec7SVikas Chaudhary .attr_is_visible = qla4_attr_is_visible, 207b3a271a9SManish Rangankar .create_session = qla4xxx_session_create, 208b3a271a9SManish Rangankar .destroy_session = qla4xxx_session_destroy, 209b3a271a9SManish Rangankar .start_conn = qla4xxx_conn_start, 210b3a271a9SManish Rangankar .create_conn = qla4xxx_conn_create, 211b3a271a9SManish Rangankar .bind_conn = qla4xxx_conn_bind, 212b3a271a9SManish Rangankar .stop_conn = iscsi_conn_stop, 213b3a271a9SManish Rangankar .destroy_conn = qla4xxx_conn_destroy, 214b3a271a9SManish Rangankar .set_param = iscsi_set_param, 215afaf5a2dSDavid Somayajulu .get_conn_param = qla4xxx_conn_get_param, 216fca9f04dSMike Christie .get_session_param = qla4xxx_session_get_param, 217b3a271a9SManish Rangankar .get_ep_param = qla4xxx_get_ep_param, 218b3a271a9SManish Rangankar .ep_connect = qla4xxx_ep_connect, 219b3a271a9SManish Rangankar .ep_poll = qla4xxx_ep_poll, 220b3a271a9SManish Rangankar .ep_disconnect = qla4xxx_ep_disconnect, 221b3a271a9SManish Rangankar .get_stats = qla4xxx_conn_get_stats, 222b3a271a9SManish Rangankar .send_pdu = iscsi_conn_send_pdu, 223b3a271a9SManish Rangankar .xmit_task = qla4xxx_task_xmit, 224b3a271a9SManish Rangankar .cleanup_task = qla4xxx_task_cleanup, 225b3a271a9SManish Rangankar .alloc_pdu = qla4xxx_alloc_pdu, 226b3a271a9SManish Rangankar 227aa1e93a2SMike Christie .get_host_param = qla4xxx_host_get_param, 228d00efe3fSMike Christie .set_iface_param = qla4xxx_iface_set_param, 229ed1086e0SVikas Chaudhary .get_iface_param = qla4xxx_get_iface_param, 230a355943cSVikas Chaudhary .bsg_request = qla4xxx_bsg_request, 231c0b9d3f7SVikas Chaudhary .send_ping = qla4xxx_send_ping, 232376738afSNilesh Javali .get_chap = qla4xxx_get_chap_list, 233376738afSNilesh Javali .delete_chap = qla4xxx_delete_chap, 234afaf5a2dSDavid Somayajulu }; 235afaf5a2dSDavid Somayajulu 236afaf5a2dSDavid Somayajulu static struct scsi_transport_template *qla4xxx_scsi_transport; 237afaf5a2dSDavid Somayajulu 238c0b9d3f7SVikas Chaudhary static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 239c0b9d3f7SVikas Chaudhary uint32_t iface_type, uint32_t payload_size, 240c0b9d3f7SVikas Chaudhary uint32_t pid, struct sockaddr *dst_addr) 241c0b9d3f7SVikas Chaudhary { 242c0b9d3f7SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 243c0b9d3f7SVikas Chaudhary struct sockaddr_in *addr; 244c0b9d3f7SVikas Chaudhary struct sockaddr_in6 *addr6; 245c0b9d3f7SVikas Chaudhary uint32_t options = 0; 246c0b9d3f7SVikas Chaudhary uint8_t ipaddr[IPv6_ADDR_LEN]; 247c0b9d3f7SVikas Chaudhary int rval; 248c0b9d3f7SVikas Chaudhary 249c0b9d3f7SVikas Chaudhary memset(ipaddr, 0, IPv6_ADDR_LEN); 250c0b9d3f7SVikas Chaudhary /* IPv4 to IPv4 */ 251c0b9d3f7SVikas Chaudhary if ((iface_type == ISCSI_IFACE_TYPE_IPV4) && 252c0b9d3f7SVikas Chaudhary (dst_addr->sa_family == AF_INET)) { 253c0b9d3f7SVikas Chaudhary addr = (struct sockaddr_in *)dst_addr; 254c0b9d3f7SVikas Chaudhary memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN); 255c0b9d3f7SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 " 256c0b9d3f7SVikas Chaudhary "dest: %pI4\n", __func__, 257c0b9d3f7SVikas Chaudhary &ha->ip_config.ip_address, ipaddr)); 258c0b9d3f7SVikas Chaudhary rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, 259c0b9d3f7SVikas Chaudhary ipaddr); 260c0b9d3f7SVikas Chaudhary if (rval) 261c0b9d3f7SVikas Chaudhary rval = -EINVAL; 262c0b9d3f7SVikas Chaudhary } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) && 263c0b9d3f7SVikas Chaudhary (dst_addr->sa_family == AF_INET6)) { 264c0b9d3f7SVikas Chaudhary /* IPv6 to IPv6 */ 265c0b9d3f7SVikas Chaudhary addr6 = (struct sockaddr_in6 *)dst_addr; 266c0b9d3f7SVikas Chaudhary memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN); 267c0b9d3f7SVikas Chaudhary 268c0b9d3f7SVikas Chaudhary options |= PING_IPV6_PROTOCOL_ENABLE; 269c0b9d3f7SVikas Chaudhary 270c0b9d3f7SVikas Chaudhary /* Ping using LinkLocal address */ 271c0b9d3f7SVikas Chaudhary if ((iface_num == 0) || (iface_num == 1)) { 272c0b9d3f7SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping " 273c0b9d3f7SVikas Chaudhary "src: %pI6 dest: %pI6\n", __func__, 274c0b9d3f7SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr, 275c0b9d3f7SVikas Chaudhary ipaddr)); 276c0b9d3f7SVikas Chaudhary options |= PING_IPV6_LINKLOCAL_ADDR; 277c0b9d3f7SVikas Chaudhary rval = qla4xxx_ping_iocb(ha, options, payload_size, 278c0b9d3f7SVikas Chaudhary pid, ipaddr); 279c0b9d3f7SVikas Chaudhary } else { 280c0b9d3f7SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "%s: iface num = %d " 281c0b9d3f7SVikas Chaudhary "not supported\n", __func__, iface_num); 282c0b9d3f7SVikas Chaudhary rval = -ENOSYS; 283c0b9d3f7SVikas Chaudhary goto exit_send_ping; 284c0b9d3f7SVikas Chaudhary } 285c0b9d3f7SVikas Chaudhary 286c0b9d3f7SVikas Chaudhary /* 287c0b9d3f7SVikas Chaudhary * If ping using LinkLocal address fails, try ping using 288c0b9d3f7SVikas Chaudhary * IPv6 address 289c0b9d3f7SVikas Chaudhary */ 290c0b9d3f7SVikas Chaudhary if (rval != QLA_SUCCESS) { 291c0b9d3f7SVikas Chaudhary options &= ~PING_IPV6_LINKLOCAL_ADDR; 292c0b9d3f7SVikas Chaudhary if (iface_num == 0) { 293c0b9d3f7SVikas Chaudhary options |= PING_IPV6_ADDR0; 294c0b9d3f7SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 295c0b9d3f7SVikas Chaudhary "Ping src: %pI6 " 296c0b9d3f7SVikas Chaudhary "dest: %pI6\n", __func__, 297c0b9d3f7SVikas Chaudhary &ha->ip_config.ipv6_addr0, 298c0b9d3f7SVikas Chaudhary ipaddr)); 299c0b9d3f7SVikas Chaudhary } else if (iface_num == 1) { 300c0b9d3f7SVikas Chaudhary options |= PING_IPV6_ADDR1; 301c0b9d3f7SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 302c0b9d3f7SVikas Chaudhary "Ping src: %pI6 " 303c0b9d3f7SVikas Chaudhary "dest: %pI6\n", __func__, 304c0b9d3f7SVikas Chaudhary &ha->ip_config.ipv6_addr1, 305c0b9d3f7SVikas Chaudhary ipaddr)); 306c0b9d3f7SVikas Chaudhary } 307c0b9d3f7SVikas Chaudhary rval = qla4xxx_ping_iocb(ha, options, payload_size, 308c0b9d3f7SVikas Chaudhary pid, ipaddr); 309c0b9d3f7SVikas Chaudhary if (rval) 310c0b9d3f7SVikas Chaudhary rval = -EINVAL; 311c0b9d3f7SVikas Chaudhary } 312c0b9d3f7SVikas Chaudhary } else 313c0b9d3f7SVikas Chaudhary rval = -ENOSYS; 314c0b9d3f7SVikas Chaudhary exit_send_ping: 315c0b9d3f7SVikas Chaudhary return rval; 316c0b9d3f7SVikas Chaudhary } 317c0b9d3f7SVikas Chaudhary 3185e9bcec7SVikas Chaudhary static umode_t qla4_attr_is_visible(int param_type, int param) 3193128c6c7SMike Christie { 3203128c6c7SMike Christie switch (param_type) { 321f27fb2efSMike Christie case ISCSI_HOST_PARAM: 322f27fb2efSMike Christie switch (param) { 323f27fb2efSMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 324f27fb2efSMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 325f27fb2efSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 3263254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_STATE: 3273254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_SPEED: 328f27fb2efSMike Christie return S_IRUGO; 329f27fb2efSMike Christie default: 330f27fb2efSMike Christie return 0; 331f27fb2efSMike Christie } 3323128c6c7SMike Christie case ISCSI_PARAM: 3333128c6c7SMike Christie switch (param) { 334590134faSMike Christie case ISCSI_PARAM_PERSISTENT_ADDRESS: 335590134faSMike Christie case ISCSI_PARAM_PERSISTENT_PORT: 3363128c6c7SMike Christie case ISCSI_PARAM_CONN_ADDRESS: 3373128c6c7SMike Christie case ISCSI_PARAM_CONN_PORT: 3381d063c17SMike Christie case ISCSI_PARAM_TARGET_NAME: 3391d063c17SMike Christie case ISCSI_PARAM_TPGT: 3401d063c17SMike Christie case ISCSI_PARAM_TARGET_ALIAS: 341b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_BURST: 342b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_R2T: 343b3a271a9SManish Rangankar case ISCSI_PARAM_FIRST_BURST: 344b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_RECV_DLENGTH: 345b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_XMIT_DLENGTH: 346de37920bSMike Christie case ISCSI_PARAM_IFACE_NAME: 347fca9f04dSMike Christie case ISCSI_PARAM_CHAP_OUT_IDX: 348fca9f04dSMike Christie case ISCSI_PARAM_CHAP_IN_IDX: 349fca9f04dSMike Christie case ISCSI_PARAM_USERNAME: 350fca9f04dSMike Christie case ISCSI_PARAM_PASSWORD: 351fca9f04dSMike Christie case ISCSI_PARAM_USERNAME_IN: 352fca9f04dSMike Christie case ISCSI_PARAM_PASSWORD_IN: 3533128c6c7SMike Christie return S_IRUGO; 3543128c6c7SMike Christie default: 3553128c6c7SMike Christie return 0; 3563128c6c7SMike Christie } 357b78dbba0SMike Christie case ISCSI_NET_PARAM: 358b78dbba0SMike Christie switch (param) { 359b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 360b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 361b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_GW: 362b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 363b78dbba0SMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 364b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 365b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 366b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 367b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 368b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 3696ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 3706ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 3716ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 372943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 3732ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 374b78dbba0SMike Christie return S_IRUGO; 375b78dbba0SMike Christie default: 376b78dbba0SMike Christie return 0; 377b78dbba0SMike Christie } 3783128c6c7SMike Christie } 3793128c6c7SMike Christie 3803128c6c7SMike Christie return 0; 3813128c6c7SMike Christie } 3823128c6c7SMike Christie 383376738afSNilesh Javali static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 384376738afSNilesh Javali uint32_t *num_entries, char *buf) 385376738afSNilesh Javali { 386376738afSNilesh Javali struct scsi_qla_host *ha = to_qla_host(shost); 387376738afSNilesh Javali struct ql4_chap_table *chap_table; 388376738afSNilesh Javali struct iscsi_chap_rec *chap_rec; 389376738afSNilesh Javali int max_chap_entries = 0; 390376738afSNilesh Javali int valid_chap_entries = 0; 391376738afSNilesh Javali int ret = 0, i; 392376738afSNilesh Javali 393376738afSNilesh Javali if (is_qla8022(ha)) 394376738afSNilesh Javali max_chap_entries = (ha->hw.flt_chap_size / 2) / 395376738afSNilesh Javali sizeof(struct ql4_chap_table); 396376738afSNilesh Javali else 397376738afSNilesh Javali max_chap_entries = MAX_CHAP_ENTRIES_40XX; 398376738afSNilesh Javali 399376738afSNilesh Javali ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", 400376738afSNilesh Javali __func__, *num_entries, chap_tbl_idx); 401376738afSNilesh Javali 402376738afSNilesh Javali if (!buf) { 403376738afSNilesh Javali ret = -ENOMEM; 404376738afSNilesh Javali goto exit_get_chap_list; 405376738afSNilesh Javali } 406376738afSNilesh Javali 407376738afSNilesh Javali chap_rec = (struct iscsi_chap_rec *) buf; 408376738afSNilesh Javali mutex_lock(&ha->chap_sem); 409376738afSNilesh Javali for (i = chap_tbl_idx; i < max_chap_entries; i++) { 410376738afSNilesh Javali chap_table = (struct ql4_chap_table *)ha->chap_list + i; 411376738afSNilesh Javali if (chap_table->cookie != 412376738afSNilesh Javali __constant_cpu_to_le16(CHAP_VALID_COOKIE)) 413376738afSNilesh Javali continue; 414376738afSNilesh Javali 415376738afSNilesh Javali chap_rec->chap_tbl_idx = i; 416376738afSNilesh Javali strncpy(chap_rec->username, chap_table->name, 417376738afSNilesh Javali ISCSI_CHAP_AUTH_NAME_MAX_LEN); 418376738afSNilesh Javali strncpy(chap_rec->password, chap_table->secret, 419376738afSNilesh Javali QL4_CHAP_MAX_SECRET_LEN); 420376738afSNilesh Javali chap_rec->password_length = chap_table->secret_len; 421376738afSNilesh Javali 422376738afSNilesh Javali if (chap_table->flags & BIT_7) /* local */ 423376738afSNilesh Javali chap_rec->chap_type = CHAP_TYPE_OUT; 424376738afSNilesh Javali 425376738afSNilesh Javali if (chap_table->flags & BIT_6) /* peer */ 426376738afSNilesh Javali chap_rec->chap_type = CHAP_TYPE_IN; 427376738afSNilesh Javali 428376738afSNilesh Javali chap_rec++; 429376738afSNilesh Javali 430376738afSNilesh Javali valid_chap_entries++; 431376738afSNilesh Javali if (valid_chap_entries == *num_entries) 432376738afSNilesh Javali break; 433376738afSNilesh Javali else 434376738afSNilesh Javali continue; 435376738afSNilesh Javali } 436376738afSNilesh Javali mutex_unlock(&ha->chap_sem); 437376738afSNilesh Javali 438376738afSNilesh Javali exit_get_chap_list: 439376738afSNilesh Javali ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", 440376738afSNilesh Javali __func__, valid_chap_entries); 441376738afSNilesh Javali *num_entries = valid_chap_entries; 442376738afSNilesh Javali return ret; 443376738afSNilesh Javali } 444376738afSNilesh Javali 445376738afSNilesh Javali static int __qla4xxx_is_chap_active(struct device *dev, void *data) 446376738afSNilesh Javali { 447376738afSNilesh Javali int ret = 0; 448376738afSNilesh Javali uint16_t *chap_tbl_idx = (uint16_t *) data; 449376738afSNilesh Javali struct iscsi_cls_session *cls_session; 450376738afSNilesh Javali struct iscsi_session *sess; 451376738afSNilesh Javali struct ddb_entry *ddb_entry; 452376738afSNilesh Javali 453376738afSNilesh Javali if (!iscsi_is_session_dev(dev)) 454376738afSNilesh Javali goto exit_is_chap_active; 455376738afSNilesh Javali 456376738afSNilesh Javali cls_session = iscsi_dev_to_session(dev); 457376738afSNilesh Javali sess = cls_session->dd_data; 458376738afSNilesh Javali ddb_entry = sess->dd_data; 459376738afSNilesh Javali 460376738afSNilesh Javali if (iscsi_session_chkready(cls_session)) 461376738afSNilesh Javali goto exit_is_chap_active; 462376738afSNilesh Javali 463376738afSNilesh Javali if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) 464376738afSNilesh Javali ret = 1; 465376738afSNilesh Javali 466376738afSNilesh Javali exit_is_chap_active: 467376738afSNilesh Javali return ret; 468376738afSNilesh Javali } 469376738afSNilesh Javali 470376738afSNilesh Javali static int qla4xxx_is_chap_active(struct Scsi_Host *shost, 471376738afSNilesh Javali uint16_t chap_tbl_idx) 472376738afSNilesh Javali { 473376738afSNilesh Javali int ret = 0; 474376738afSNilesh Javali 475376738afSNilesh Javali ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, 476376738afSNilesh Javali __qla4xxx_is_chap_active); 477376738afSNilesh Javali 478376738afSNilesh Javali return ret; 479376738afSNilesh Javali } 480376738afSNilesh Javali 481376738afSNilesh Javali static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) 482376738afSNilesh Javali { 483376738afSNilesh Javali struct scsi_qla_host *ha = to_qla_host(shost); 484376738afSNilesh Javali struct ql4_chap_table *chap_table; 485376738afSNilesh Javali dma_addr_t chap_dma; 486376738afSNilesh Javali int max_chap_entries = 0; 487376738afSNilesh Javali uint32_t offset = 0; 488376738afSNilesh Javali uint32_t chap_size; 489376738afSNilesh Javali int ret = 0; 490376738afSNilesh Javali 491376738afSNilesh Javali chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 492376738afSNilesh Javali if (chap_table == NULL) 493376738afSNilesh Javali return -ENOMEM; 494376738afSNilesh Javali 495376738afSNilesh Javali memset(chap_table, 0, sizeof(struct ql4_chap_table)); 496376738afSNilesh Javali 497376738afSNilesh Javali if (is_qla8022(ha)) 498376738afSNilesh Javali max_chap_entries = (ha->hw.flt_chap_size / 2) / 499376738afSNilesh Javali sizeof(struct ql4_chap_table); 500376738afSNilesh Javali else 501376738afSNilesh Javali max_chap_entries = MAX_CHAP_ENTRIES_40XX; 502376738afSNilesh Javali 503376738afSNilesh Javali if (chap_tbl_idx > max_chap_entries) { 504376738afSNilesh Javali ret = -EINVAL; 505376738afSNilesh Javali goto exit_delete_chap; 506376738afSNilesh Javali } 507376738afSNilesh Javali 508376738afSNilesh Javali /* Check if chap index is in use. 509376738afSNilesh Javali * If chap is in use don't delet chap entry */ 510376738afSNilesh Javali ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 511376738afSNilesh Javali if (ret) { 512376738afSNilesh Javali ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 513376738afSNilesh Javali "delete from flash\n", chap_tbl_idx); 514376738afSNilesh Javali ret = -EBUSY; 515376738afSNilesh Javali goto exit_delete_chap; 516376738afSNilesh Javali } 517376738afSNilesh Javali 518376738afSNilesh Javali chap_size = sizeof(struct ql4_chap_table); 519376738afSNilesh Javali if (is_qla40XX(ha)) 520376738afSNilesh Javali offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 521376738afSNilesh Javali else { 522376738afSNilesh Javali offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 523376738afSNilesh Javali /* flt_chap_size is CHAP table size for both ports 524376738afSNilesh Javali * so divide it by 2 to calculate the offset for second port 525376738afSNilesh Javali */ 526376738afSNilesh Javali if (ha->port_num == 1) 527376738afSNilesh Javali offset += (ha->hw.flt_chap_size / 2); 528376738afSNilesh Javali offset += (chap_tbl_idx * chap_size); 529376738afSNilesh Javali } 530376738afSNilesh Javali 531376738afSNilesh Javali ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 532376738afSNilesh Javali if (ret != QLA_SUCCESS) { 533376738afSNilesh Javali ret = -EINVAL; 534376738afSNilesh Javali goto exit_delete_chap; 535376738afSNilesh Javali } 536376738afSNilesh Javali 537376738afSNilesh Javali DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 538376738afSNilesh Javali __le16_to_cpu(chap_table->cookie))); 539376738afSNilesh Javali 540376738afSNilesh Javali if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 541376738afSNilesh Javali ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 542376738afSNilesh Javali goto exit_delete_chap; 543376738afSNilesh Javali } 544376738afSNilesh Javali 545376738afSNilesh Javali chap_table->cookie = __constant_cpu_to_le16(0xFFFF); 546376738afSNilesh Javali 547376738afSNilesh Javali offset = FLASH_CHAP_OFFSET | 548376738afSNilesh Javali (chap_tbl_idx * sizeof(struct ql4_chap_table)); 549376738afSNilesh Javali ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 550376738afSNilesh Javali FLASH_OPT_RMW_COMMIT); 551376738afSNilesh Javali if (ret == QLA_SUCCESS && ha->chap_list) { 552376738afSNilesh Javali mutex_lock(&ha->chap_sem); 553376738afSNilesh Javali /* Update ha chap_list cache */ 554376738afSNilesh Javali memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 555376738afSNilesh Javali chap_table, sizeof(struct ql4_chap_table)); 556376738afSNilesh Javali mutex_unlock(&ha->chap_sem); 557376738afSNilesh Javali } 558376738afSNilesh Javali if (ret != QLA_SUCCESS) 559376738afSNilesh Javali ret = -EINVAL; 560376738afSNilesh Javali 561376738afSNilesh Javali exit_delete_chap: 562376738afSNilesh Javali dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 563376738afSNilesh Javali return ret; 564376738afSNilesh Javali } 565376738afSNilesh Javali 566ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 567ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 568ed1086e0SVikas Chaudhary int param, char *buf) 569ed1086e0SVikas Chaudhary { 570ed1086e0SVikas Chaudhary struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 571ed1086e0SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 572ed1086e0SVikas Chaudhary int len = -ENOSYS; 573ed1086e0SVikas Chaudhary 574ed1086e0SVikas Chaudhary if (param_type != ISCSI_NET_PARAM) 575ed1086e0SVikas Chaudhary return -ENOSYS; 576ed1086e0SVikas Chaudhary 577ed1086e0SVikas Chaudhary switch (param) { 578ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_ADDR: 579ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 580ed1086e0SVikas Chaudhary break; 581ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_SUBNET: 582ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 583ed1086e0SVikas Chaudhary break; 584ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_GW: 585ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 586ed1086e0SVikas Chaudhary break; 587ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IFACE_ENABLE: 588ed1086e0SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 589ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 590ed1086e0SVikas Chaudhary (ha->ip_config.ipv4_options & 591ed1086e0SVikas Chaudhary IPOPT_IPV4_PROTOCOL_ENABLE) ? 592ed1086e0SVikas Chaudhary "enabled" : "disabled"); 593ed1086e0SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 594ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 595ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_options & 596ed1086e0SVikas Chaudhary IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 597ed1086e0SVikas Chaudhary "enabled" : "disabled"); 598ed1086e0SVikas Chaudhary break; 599ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 600ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 601ed1086e0SVikas Chaudhary (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 602ed1086e0SVikas Chaudhary "dhcp" : "static"); 603ed1086e0SVikas Chaudhary break; 604ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR: 605ed1086e0SVikas Chaudhary if (iface->iface_num == 0) 606ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 607ed1086e0SVikas Chaudhary if (iface->iface_num == 1) 608ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 609ed1086e0SVikas Chaudhary break; 610ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 611ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 612ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr); 613ed1086e0SVikas Chaudhary break; 614ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ROUTER: 615ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 616ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_default_router_addr); 617ed1086e0SVikas Chaudhary break; 618ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 619ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 620ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 621ed1086e0SVikas Chaudhary IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 622ed1086e0SVikas Chaudhary "nd" : "static"); 623ed1086e0SVikas Chaudhary break; 624ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 625ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 626ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 627ed1086e0SVikas Chaudhary IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 628ed1086e0SVikas Chaudhary "auto" : "static"); 629ed1086e0SVikas Chaudhary break; 6306ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 6316ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 6326ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 6336ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_vlan_tag & 6346ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 6356ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 6366ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 6376ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_vlan_tag & 6386ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 6396ac73e8cSVikas Chaudhary break; 6406ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 6416ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 6426ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 6436ac73e8cSVikas Chaudhary ((ha->ip_config.ipv4_vlan_tag >> 13) & 6446ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 6456ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 6466ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 6476ac73e8cSVikas Chaudhary ((ha->ip_config.ipv6_vlan_tag >> 13) & 6486ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 6496ac73e8cSVikas Chaudhary break; 6506ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 6516ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 6526ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 6536ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_options & 6546ac73e8cSVikas Chaudhary IPOPT_VLAN_TAGGING_ENABLE) ? 6556ac73e8cSVikas Chaudhary "enabled" : "disabled"); 6566ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 6576ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 6586ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_options & 6596ac73e8cSVikas Chaudhary IPV6_OPT_VLAN_TAGGING_ENABLE) ? 6606ac73e8cSVikas Chaudhary "enabled" : "disabled"); 6616ac73e8cSVikas Chaudhary break; 662943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 663943c157bSVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 664943c157bSVikas Chaudhary break; 6652ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 6662ada7fc5SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 6672ada7fc5SVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port); 6682ada7fc5SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 6692ada7fc5SVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port); 6702ada7fc5SVikas Chaudhary break; 671ed1086e0SVikas Chaudhary default: 672ed1086e0SVikas Chaudhary len = -ENOSYS; 673ed1086e0SVikas Chaudhary } 674ed1086e0SVikas Chaudhary 675ed1086e0SVikas Chaudhary return len; 676ed1086e0SVikas Chaudhary } 677ed1086e0SVikas Chaudhary 678b3a271a9SManish Rangankar static struct iscsi_endpoint * 679b3a271a9SManish Rangankar qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 680b3a271a9SManish Rangankar int non_blocking) 681b3a271a9SManish Rangankar { 682b3a271a9SManish Rangankar int ret; 683b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 684b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 685b3a271a9SManish Rangankar struct scsi_qla_host *ha; 686b3a271a9SManish Rangankar struct sockaddr_in *addr; 687b3a271a9SManish Rangankar struct sockaddr_in6 *addr6; 688b3a271a9SManish Rangankar 689b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 690b3a271a9SManish Rangankar if (!shost) { 691b3a271a9SManish Rangankar ret = -ENXIO; 692b3a271a9SManish Rangankar printk(KERN_ERR "%s: shost is NULL\n", 693b3a271a9SManish Rangankar __func__); 694b3a271a9SManish Rangankar return ERR_PTR(ret); 695b3a271a9SManish Rangankar } 696b3a271a9SManish Rangankar 697b3a271a9SManish Rangankar ha = iscsi_host_priv(shost); 698b3a271a9SManish Rangankar 699b3a271a9SManish Rangankar ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 700b3a271a9SManish Rangankar if (!ep) { 701b3a271a9SManish Rangankar ret = -ENOMEM; 702b3a271a9SManish Rangankar return ERR_PTR(ret); 703b3a271a9SManish Rangankar } 704b3a271a9SManish Rangankar 705b3a271a9SManish Rangankar qla_ep = ep->dd_data; 706b3a271a9SManish Rangankar memset(qla_ep, 0, sizeof(struct qla_endpoint)); 707b3a271a9SManish Rangankar if (dst_addr->sa_family == AF_INET) { 708b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 709b3a271a9SManish Rangankar addr = (struct sockaddr_in *)&qla_ep->dst_addr; 710b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 711b3a271a9SManish Rangankar (char *)&addr->sin_addr)); 712b3a271a9SManish Rangankar } else if (dst_addr->sa_family == AF_INET6) { 713b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, 714b3a271a9SManish Rangankar sizeof(struct sockaddr_in6)); 715b3a271a9SManish Rangankar addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 716b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 717b3a271a9SManish Rangankar (char *)&addr6->sin6_addr)); 718b3a271a9SManish Rangankar } 719b3a271a9SManish Rangankar 720b3a271a9SManish Rangankar qla_ep->host = shost; 721b3a271a9SManish Rangankar 722b3a271a9SManish Rangankar return ep; 723b3a271a9SManish Rangankar } 724b3a271a9SManish Rangankar 725b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 726b3a271a9SManish Rangankar { 727b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 728b3a271a9SManish Rangankar struct scsi_qla_host *ha; 729b3a271a9SManish Rangankar int ret = 0; 730b3a271a9SManish Rangankar 731b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 732b3a271a9SManish Rangankar qla_ep = ep->dd_data; 733b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 734b3a271a9SManish Rangankar 73513483730SMike Christie if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 736b3a271a9SManish Rangankar ret = 1; 737b3a271a9SManish Rangankar 738b3a271a9SManish Rangankar return ret; 739b3a271a9SManish Rangankar } 740b3a271a9SManish Rangankar 741b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 742b3a271a9SManish Rangankar { 743b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 744b3a271a9SManish Rangankar iscsi_destroy_endpoint(ep); 745b3a271a9SManish Rangankar } 746b3a271a9SManish Rangankar 747b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 748b3a271a9SManish Rangankar enum iscsi_param param, 749b3a271a9SManish Rangankar char *buf) 750b3a271a9SManish Rangankar { 751b3a271a9SManish Rangankar struct qla_endpoint *qla_ep = ep->dd_data; 752b3a271a9SManish Rangankar struct sockaddr *dst_addr; 753b3a271a9SManish Rangankar 754b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 755b3a271a9SManish Rangankar 756b3a271a9SManish Rangankar switch (param) { 757b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_PORT: 758b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_ADDRESS: 759b3a271a9SManish Rangankar if (!qla_ep) 760b3a271a9SManish Rangankar return -ENOTCONN; 761b3a271a9SManish Rangankar 762b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 763b3a271a9SManish Rangankar if (!dst_addr) 764b3a271a9SManish Rangankar return -ENOTCONN; 765b3a271a9SManish Rangankar 766b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 767b3a271a9SManish Rangankar &qla_ep->dst_addr, param, buf); 768b3a271a9SManish Rangankar default: 769b3a271a9SManish Rangankar return -ENOSYS; 770b3a271a9SManish Rangankar } 771b3a271a9SManish Rangankar } 772b3a271a9SManish Rangankar 773b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 774b3a271a9SManish Rangankar struct iscsi_stats *stats) 775b3a271a9SManish Rangankar { 776b3a271a9SManish Rangankar struct iscsi_session *sess; 777b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 778b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 779b3a271a9SManish Rangankar struct scsi_qla_host *ha; 780b3a271a9SManish Rangankar struct ql_iscsi_stats *ql_iscsi_stats; 781b3a271a9SManish Rangankar int stats_size; 782b3a271a9SManish Rangankar int ret; 783b3a271a9SManish Rangankar dma_addr_t iscsi_stats_dma; 784b3a271a9SManish Rangankar 785b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 786b3a271a9SManish Rangankar 787b3a271a9SManish Rangankar cls_sess = iscsi_conn_to_session(cls_conn); 788b3a271a9SManish Rangankar sess = cls_sess->dd_data; 789b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 790b3a271a9SManish Rangankar ha = ddb_entry->ha; 791b3a271a9SManish Rangankar 792b3a271a9SManish Rangankar stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 793b3a271a9SManish Rangankar /* Allocate memory */ 794b3a271a9SManish Rangankar ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 795b3a271a9SManish Rangankar &iscsi_stats_dma, GFP_KERNEL); 796b3a271a9SManish Rangankar if (!ql_iscsi_stats) { 797b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 798b3a271a9SManish Rangankar "Unable to allocate memory for iscsi stats\n"); 799b3a271a9SManish Rangankar goto exit_get_stats; 800b3a271a9SManish Rangankar } 801b3a271a9SManish Rangankar 802b3a271a9SManish Rangankar ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 803b3a271a9SManish Rangankar iscsi_stats_dma); 804b3a271a9SManish Rangankar if (ret != QLA_SUCCESS) { 805b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 806b3a271a9SManish Rangankar "Unable to retreive iscsi stats\n"); 807b3a271a9SManish Rangankar goto free_stats; 808b3a271a9SManish Rangankar } 809b3a271a9SManish Rangankar 810b3a271a9SManish Rangankar /* octets */ 811b3a271a9SManish Rangankar stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 812b3a271a9SManish Rangankar stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 813b3a271a9SManish Rangankar /* xmit pdus */ 814b3a271a9SManish Rangankar stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 815b3a271a9SManish Rangankar stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 816b3a271a9SManish Rangankar stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 817b3a271a9SManish Rangankar stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 818b3a271a9SManish Rangankar stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 819b3a271a9SManish Rangankar stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 820b3a271a9SManish Rangankar stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 821b3a271a9SManish Rangankar stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 822b3a271a9SManish Rangankar /* recv pdus */ 823b3a271a9SManish Rangankar stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 824b3a271a9SManish Rangankar stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 825b3a271a9SManish Rangankar stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 826b3a271a9SManish Rangankar stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 827b3a271a9SManish Rangankar stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 828b3a271a9SManish Rangankar stats->logoutrsp_pdus = 829b3a271a9SManish Rangankar le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 830b3a271a9SManish Rangankar stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 831b3a271a9SManish Rangankar stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 832b3a271a9SManish Rangankar stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 833b3a271a9SManish Rangankar 834b3a271a9SManish Rangankar free_stats: 835b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 836b3a271a9SManish Rangankar iscsi_stats_dma); 837b3a271a9SManish Rangankar exit_get_stats: 838b3a271a9SManish Rangankar return; 839b3a271a9SManish Rangankar } 840b3a271a9SManish Rangankar 8415c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 8425c656af7SMike Christie { 8435c656af7SMike Christie struct iscsi_cls_session *session; 844b3a271a9SManish Rangankar struct iscsi_session *sess; 845b3a271a9SManish Rangankar unsigned long flags; 846b3a271a9SManish Rangankar enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 8475c656af7SMike Christie 8485c656af7SMike Christie session = starget_to_session(scsi_target(sc->device)); 849b3a271a9SManish Rangankar sess = session->dd_data; 8505c656af7SMike Christie 851b3a271a9SManish Rangankar spin_lock_irqsave(&session->lock, flags); 852b3a271a9SManish Rangankar if (session->state == ISCSI_SESSION_FAILED) 853b3a271a9SManish Rangankar ret = BLK_EH_RESET_TIMER; 854b3a271a9SManish Rangankar spin_unlock_irqrestore(&session->lock, flags); 8555c656af7SMike Christie 856b3a271a9SManish Rangankar return ret; 857568d303bSMike Christie } 858afaf5a2dSDavid Somayajulu 8593254dbe9SVikas Chaudhary static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 8603254dbe9SVikas Chaudhary { 8613254dbe9SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 862e16d166eSVikas Chaudhary struct iscsi_cls_host *ihost = shost->shost_data; 8633254dbe9SVikas Chaudhary uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 8643254dbe9SVikas Chaudhary 8653254dbe9SVikas Chaudhary qla4xxx_get_firmware_state(ha); 8663254dbe9SVikas Chaudhary 8673254dbe9SVikas Chaudhary switch (ha->addl_fw_state & 0x0F00) { 8683254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_10MBPS: 8693254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_10MBPS; 8703254dbe9SVikas Chaudhary break; 8713254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_100MBPS: 8723254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_100MBPS; 8733254dbe9SVikas Chaudhary break; 8743254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_1GBPS: 8753254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_1GBPS; 8763254dbe9SVikas Chaudhary break; 8773254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_10GBPS: 8783254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_10GBPS; 8793254dbe9SVikas Chaudhary break; 8803254dbe9SVikas Chaudhary } 8813254dbe9SVikas Chaudhary ihost->port_speed = speed; 8823254dbe9SVikas Chaudhary } 8833254dbe9SVikas Chaudhary 8843254dbe9SVikas Chaudhary static void qla4xxx_set_port_state(struct Scsi_Host *shost) 8853254dbe9SVikas Chaudhary { 8863254dbe9SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 887e16d166eSVikas Chaudhary struct iscsi_cls_host *ihost = shost->shost_data; 8883254dbe9SVikas Chaudhary uint32_t state = ISCSI_PORT_STATE_DOWN; 8893254dbe9SVikas Chaudhary 8903254dbe9SVikas Chaudhary if (test_bit(AF_LINK_UP, &ha->flags)) 8913254dbe9SVikas Chaudhary state = ISCSI_PORT_STATE_UP; 8923254dbe9SVikas Chaudhary 8933254dbe9SVikas Chaudhary ihost->port_state = state; 8943254dbe9SVikas Chaudhary } 8953254dbe9SVikas Chaudhary 896aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 897aa1e93a2SMike Christie enum iscsi_host_param param, char *buf) 898aa1e93a2SMike Christie { 899aa1e93a2SMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 900aa1e93a2SMike Christie int len; 901aa1e93a2SMike Christie 902aa1e93a2SMike Christie switch (param) { 903aa1e93a2SMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 9047ffc49a6SMichael Chan len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 905aa1e93a2SMike Christie break; 90622236961SMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 9072bab08fcSVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 90822236961SMike Christie break; 9098ad5781aSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 91022236961SMike Christie len = sprintf(buf, "%s\n", ha->name_string); 9118ad5781aSMike Christie break; 9123254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_STATE: 9133254dbe9SVikas Chaudhary qla4xxx_set_port_state(shost); 9143254dbe9SVikas Chaudhary len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 9153254dbe9SVikas Chaudhary break; 9163254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_SPEED: 9173254dbe9SVikas Chaudhary qla4xxx_set_port_speed(shost); 9183254dbe9SVikas Chaudhary len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 9193254dbe9SVikas Chaudhary break; 920aa1e93a2SMike Christie default: 921aa1e93a2SMike Christie return -ENOSYS; 922aa1e93a2SMike Christie } 923aa1e93a2SMike Christie 924aa1e93a2SMike Christie return len; 925aa1e93a2SMike Christie } 926aa1e93a2SMike Christie 927ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 928ed1086e0SVikas Chaudhary { 929ed1086e0SVikas Chaudhary if (ha->iface_ipv4) 930ed1086e0SVikas Chaudhary return; 931ed1086e0SVikas Chaudhary 932ed1086e0SVikas Chaudhary /* IPv4 */ 933ed1086e0SVikas Chaudhary ha->iface_ipv4 = iscsi_create_iface(ha->host, 934ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 935ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV4, 0, 0); 936ed1086e0SVikas Chaudhary if (!ha->iface_ipv4) 937ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 938ed1086e0SVikas Chaudhary "iface0.\n"); 939ed1086e0SVikas Chaudhary } 940ed1086e0SVikas Chaudhary 941ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 942ed1086e0SVikas Chaudhary { 943ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 944ed1086e0SVikas Chaudhary /* IPv6 iface-0 */ 945ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 946ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 947ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 0, 948ed1086e0SVikas Chaudhary 0); 949ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 950ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 951ed1086e0SVikas Chaudhary "iface0.\n"); 952ed1086e0SVikas Chaudhary 953ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 954ed1086e0SVikas Chaudhary /* IPv6 iface-1 */ 955ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 956ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 957ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 1, 958ed1086e0SVikas Chaudhary 0); 959ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 960ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 961ed1086e0SVikas Chaudhary "iface1.\n"); 962ed1086e0SVikas Chaudhary } 963ed1086e0SVikas Chaudhary 964ed1086e0SVikas Chaudhary static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 965ed1086e0SVikas Chaudhary { 966ed1086e0SVikas Chaudhary if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 967ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 968ed1086e0SVikas Chaudhary 969ed1086e0SVikas Chaudhary if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 970ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 971ed1086e0SVikas Chaudhary } 972ed1086e0SVikas Chaudhary 973ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 974ed1086e0SVikas Chaudhary { 975ed1086e0SVikas Chaudhary if (ha->iface_ipv4) { 976ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv4); 977ed1086e0SVikas Chaudhary ha->iface_ipv4 = NULL; 978ed1086e0SVikas Chaudhary } 979ed1086e0SVikas Chaudhary } 980ed1086e0SVikas Chaudhary 981ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 982ed1086e0SVikas Chaudhary { 983ed1086e0SVikas Chaudhary if (ha->iface_ipv6_0) { 984ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_0); 985ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = NULL; 986ed1086e0SVikas Chaudhary } 987ed1086e0SVikas Chaudhary if (ha->iface_ipv6_1) { 988ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_1); 989ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = NULL; 990ed1086e0SVikas Chaudhary } 991ed1086e0SVikas Chaudhary } 992ed1086e0SVikas Chaudhary 993ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 994ed1086e0SVikas Chaudhary { 995ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 996ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 997ed1086e0SVikas Chaudhary } 998ed1086e0SVikas Chaudhary 999d00efe3fSMike Christie static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 1000d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 1001d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 1002d00efe3fSMike Christie { 1003d00efe3fSMike Christie /* 1004d00efe3fSMike Christie * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 1005d00efe3fSMike Christie * iface_num 1 is valid only for IPv6 Addr. 1006d00efe3fSMike Christie */ 1007d00efe3fSMike Christie switch (iface_param->param) { 1008d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 1009d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 1010d00efe3fSMike Christie /* IPv6 Addr 1 */ 1011d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 1012d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr1)); 1013d00efe3fSMike Christie else 1014d00efe3fSMike Christie /* IPv6 Addr 0 */ 1015d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 1016d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr0)); 1017d00efe3fSMike Christie break; 1018d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 1019d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 1020d00efe3fSMike Christie break; 1021d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 1022d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_if_id)); 1023d00efe3fSMike Christie break; 1024d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 1025d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 1026d00efe3fSMike Christie break; 1027d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 1028d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 1029d00efe3fSMike Christie break; 1030d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1031d00efe3fSMike Christie /* Autocfg applies to even interface */ 1032d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 1033d00efe3fSMike Christie break; 1034d00efe3fSMike Christie 1035d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 1036d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= 1037d00efe3fSMike Christie cpu_to_le16( 1038d00efe3fSMike Christie ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 1039d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 1040d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= 1041d00efe3fSMike Christie cpu_to_le16( 1042d00efe3fSMike Christie IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 1043d00efe3fSMike Christie else 1044d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 1045d00efe3fSMike Christie "IPv6 addr\n"); 1046d00efe3fSMike Christie break; 1047d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1048d00efe3fSMike Christie /* Autocfg applies to even interface */ 1049d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 1050d00efe3fSMike Christie break; 1051d00efe3fSMike Christie 1052d00efe3fSMike Christie if (iface_param->value[0] == 1053d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 1054d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 1055d00efe3fSMike Christie IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 1056d00efe3fSMike Christie else if (iface_param->value[0] == 1057d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 1058d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 1059d00efe3fSMike Christie ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 1060d00efe3fSMike Christie else 1061d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 1062d00efe3fSMike Christie "IPv6 linklocal addr\n"); 1063d00efe3fSMike Christie break; 1064d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 1065d00efe3fSMike Christie /* Autocfg applies to even interface */ 1066d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 1067d00efe3fSMike Christie break; 1068d00efe3fSMike Christie 1069d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 1070d00efe3fSMike Christie memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 1071d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 1072d00efe3fSMike Christie break; 1073d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 1074ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 1075d00efe3fSMike Christie init_fw_cb->ipv6_opts |= 1076d00efe3fSMike Christie cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 1077ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 1078ed1086e0SVikas Chaudhary } else { 1079d00efe3fSMike Christie init_fw_cb->ipv6_opts &= 1080d00efe3fSMike Christie cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 1081d00efe3fSMike Christie 0xFFFF); 1082ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 1083ed1086e0SVikas Chaudhary } 1084d00efe3fSMike Christie break; 10852d63673bSMike Christie case ISCSI_NET_PARAM_VLAN_TAG: 1086d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 1087d00efe3fSMike Christie break; 10886ac73e8cSVikas Chaudhary init_fw_cb->ipv6_vlan_tag = 10896ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 10906ac73e8cSVikas Chaudhary break; 10916ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 10926ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 10936ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts |= 10946ac73e8cSVikas Chaudhary cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 10956ac73e8cSVikas Chaudhary else 10966ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts &= 10976ac73e8cSVikas Chaudhary cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 1098d00efe3fSMike Christie break; 1099943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 1100943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 1101943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 1102943c157bSVikas Chaudhary break; 11032ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 11042ada7fc5SVikas Chaudhary /* Autocfg applies to even interface */ 11052ada7fc5SVikas Chaudhary if (iface_param->iface_num & 0x1) 11062ada7fc5SVikas Chaudhary break; 11072ada7fc5SVikas Chaudhary 11082ada7fc5SVikas Chaudhary init_fw_cb->ipv6_port = 11092ada7fc5SVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 11102ada7fc5SVikas Chaudhary break; 1111d00efe3fSMike Christie default: 1112d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 1113d00efe3fSMike Christie iface_param->param); 1114d00efe3fSMike Christie break; 1115d00efe3fSMike Christie } 1116d00efe3fSMike Christie } 1117d00efe3fSMike Christie 1118d00efe3fSMike Christie static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 1119d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 1120d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 1121d00efe3fSMike Christie { 1122d00efe3fSMike Christie switch (iface_param->param) { 1123d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 1124d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_addr, iface_param->value, 1125d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_addr)); 1126d00efe3fSMike Christie break; 1127d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 1128d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 1129d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_subnet)); 1130d00efe3fSMike Christie break; 1131d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_GW: 1132d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 1133d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_gw_addr)); 1134d00efe3fSMike Christie break; 1135d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1136d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 1137d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts |= 1138d00efe3fSMike Christie cpu_to_le16(TCPOPT_DHCP_ENABLE); 1139d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 1140d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts &= 1141d00efe3fSMike Christie cpu_to_le16(~TCPOPT_DHCP_ENABLE); 1142d00efe3fSMike Christie else 1143d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 1144d00efe3fSMike Christie break; 1145d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 1146ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 1147d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts |= 11482bab08fcSVikas Chaudhary cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 1149ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 1150ed1086e0SVikas Chaudhary } else { 1151d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts &= 11522bab08fcSVikas Chaudhary cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 1153d00efe3fSMike Christie 0xFFFF); 1154ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 1155ed1086e0SVikas Chaudhary } 1156d00efe3fSMike Christie break; 11572d63673bSMike Christie case ISCSI_NET_PARAM_VLAN_TAG: 1158d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 1159d00efe3fSMike Christie break; 11606ac73e8cSVikas Chaudhary init_fw_cb->ipv4_vlan_tag = 11616ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 11626ac73e8cSVikas Chaudhary break; 11636ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 11646ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 11656ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts |= 11666ac73e8cSVikas Chaudhary cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 11676ac73e8cSVikas Chaudhary else 11686ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts &= 11696ac73e8cSVikas Chaudhary cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 1170d00efe3fSMike Christie break; 1171943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 1172943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 1173943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 1174943c157bSVikas Chaudhary break; 11752ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 11762ada7fc5SVikas Chaudhary init_fw_cb->ipv4_port = 11772ada7fc5SVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 11782ada7fc5SVikas Chaudhary break; 1179d00efe3fSMike Christie default: 1180d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 1181d00efe3fSMike Christie iface_param->param); 1182d00efe3fSMike Christie break; 1183d00efe3fSMike Christie } 1184d00efe3fSMike Christie } 1185d00efe3fSMike Christie 1186d00efe3fSMike Christie static void 1187d00efe3fSMike Christie qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 1188d00efe3fSMike Christie { 1189d00efe3fSMike Christie struct addr_ctrl_blk_def *acb; 1190d00efe3fSMike Christie acb = (struct addr_ctrl_blk_def *)init_fw_cb; 1191d00efe3fSMike Christie memset(acb->reserved1, 0, sizeof(acb->reserved1)); 1192d00efe3fSMike Christie memset(acb->reserved2, 0, sizeof(acb->reserved2)); 1193d00efe3fSMike Christie memset(acb->reserved3, 0, sizeof(acb->reserved3)); 1194d00efe3fSMike Christie memset(acb->reserved4, 0, sizeof(acb->reserved4)); 1195d00efe3fSMike Christie memset(acb->reserved5, 0, sizeof(acb->reserved5)); 1196d00efe3fSMike Christie memset(acb->reserved6, 0, sizeof(acb->reserved6)); 1197d00efe3fSMike Christie memset(acb->reserved7, 0, sizeof(acb->reserved7)); 1198d00efe3fSMike Christie memset(acb->reserved8, 0, sizeof(acb->reserved8)); 1199d00efe3fSMike Christie memset(acb->reserved9, 0, sizeof(acb->reserved9)); 1200d00efe3fSMike Christie memset(acb->reserved10, 0, sizeof(acb->reserved10)); 1201d00efe3fSMike Christie memset(acb->reserved11, 0, sizeof(acb->reserved11)); 1202d00efe3fSMike Christie memset(acb->reserved12, 0, sizeof(acb->reserved12)); 1203d00efe3fSMike Christie memset(acb->reserved13, 0, sizeof(acb->reserved13)); 1204d00efe3fSMike Christie memset(acb->reserved14, 0, sizeof(acb->reserved14)); 1205d00efe3fSMike Christie memset(acb->reserved15, 0, sizeof(acb->reserved15)); 1206d00efe3fSMike Christie } 1207d00efe3fSMike Christie 1208d00efe3fSMike Christie static int 120900c31889SMike Christie qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 1210d00efe3fSMike Christie { 1211d00efe3fSMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 1212d00efe3fSMike Christie int rval = 0; 1213d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param = NULL; 1214d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb = NULL; 1215d00efe3fSMike Christie dma_addr_t init_fw_cb_dma; 1216d00efe3fSMike Christie uint32_t mbox_cmd[MBOX_REG_COUNT]; 1217d00efe3fSMike Christie uint32_t mbox_sts[MBOX_REG_COUNT]; 121800c31889SMike Christie uint32_t rem = len; 121900c31889SMike Christie struct nlattr *attr; 1220d00efe3fSMike Christie 1221d00efe3fSMike Christie init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 1222d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 1223d00efe3fSMike Christie &init_fw_cb_dma, GFP_KERNEL); 1224d00efe3fSMike Christie if (!init_fw_cb) { 1225d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 1226d00efe3fSMike Christie __func__); 1227d00efe3fSMike Christie return -ENOMEM; 1228d00efe3fSMike Christie } 1229d00efe3fSMike Christie 1230d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 1231d00efe3fSMike Christie memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 1232d00efe3fSMike Christie memset(&mbox_sts, 0, sizeof(mbox_sts)); 1233d00efe3fSMike Christie 1234d00efe3fSMike Christie if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 1235d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 1236d00efe3fSMike Christie rval = -EIO; 1237d00efe3fSMike Christie goto exit_init_fw_cb; 1238d00efe3fSMike Christie } 1239d00efe3fSMike Christie 124000c31889SMike Christie nla_for_each_attr(attr, data, len, rem) { 124100c31889SMike Christie iface_param = nla_data(attr); 1242d00efe3fSMike Christie 1243d00efe3fSMike Christie if (iface_param->param_type != ISCSI_NET_PARAM) 1244d00efe3fSMike Christie continue; 1245d00efe3fSMike Christie 1246d00efe3fSMike Christie switch (iface_param->iface_type) { 1247d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV4: 1248d00efe3fSMike Christie switch (iface_param->iface_num) { 1249d00efe3fSMike Christie case 0: 1250d00efe3fSMike Christie qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 1251d00efe3fSMike Christie break; 1252d00efe3fSMike Christie default: 1253d00efe3fSMike Christie /* Cannot have more than one IPv4 interface */ 1254d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 1255d00efe3fSMike Christie "number = %d\n", 1256d00efe3fSMike Christie iface_param->iface_num); 1257d00efe3fSMike Christie break; 1258d00efe3fSMike Christie } 1259d00efe3fSMike Christie break; 1260d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV6: 1261d00efe3fSMike Christie switch (iface_param->iface_num) { 1262d00efe3fSMike Christie case 0: 1263d00efe3fSMike Christie case 1: 1264d00efe3fSMike Christie qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 1265d00efe3fSMike Christie break; 1266d00efe3fSMike Christie default: 1267d00efe3fSMike Christie /* Cannot have more than two IPv6 interface */ 1268d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 1269d00efe3fSMike Christie "number = %d\n", 1270d00efe3fSMike Christie iface_param->iface_num); 1271d00efe3fSMike Christie break; 1272d00efe3fSMike Christie } 1273d00efe3fSMike Christie break; 1274d00efe3fSMike Christie default: 1275d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 1276d00efe3fSMike Christie break; 1277d00efe3fSMike Christie } 1278d00efe3fSMike Christie } 1279d00efe3fSMike Christie 1280d00efe3fSMike Christie init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 1281d00efe3fSMike Christie 1282d00efe3fSMike Christie rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 1283d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 1284d00efe3fSMike Christie FLASH_OPT_RMW_COMMIT); 1285d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 1286d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 1287d00efe3fSMike Christie __func__); 1288d00efe3fSMike Christie rval = -EIO; 1289d00efe3fSMike Christie goto exit_init_fw_cb; 1290d00efe3fSMike Christie } 1291d00efe3fSMike Christie 1292ce505f9dSVikas Chaudhary rval = qla4xxx_disable_acb(ha); 1293ce505f9dSVikas Chaudhary if (rval != QLA_SUCCESS) { 1294ce505f9dSVikas Chaudhary ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 1295ce505f9dSVikas Chaudhary __func__); 1296ce505f9dSVikas Chaudhary rval = -EIO; 1297ce505f9dSVikas Chaudhary goto exit_init_fw_cb; 1298ce505f9dSVikas Chaudhary } 1299ce505f9dSVikas Chaudhary 1300ce505f9dSVikas Chaudhary wait_for_completion_timeout(&ha->disable_acb_comp, 1301ce505f9dSVikas Chaudhary DISABLE_ACB_TOV * HZ); 1302d00efe3fSMike Christie 1303d00efe3fSMike Christie qla4xxx_initcb_to_acb(init_fw_cb); 1304d00efe3fSMike Christie 1305d00efe3fSMike Christie rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 1306d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 1307d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 1308d00efe3fSMike Christie __func__); 1309d00efe3fSMike Christie rval = -EIO; 1310d00efe3fSMike Christie goto exit_init_fw_cb; 1311d00efe3fSMike Christie } 1312d00efe3fSMike Christie 1313d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 1314d00efe3fSMike Christie qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 1315d00efe3fSMike Christie init_fw_cb_dma); 1316d00efe3fSMike Christie 1317d00efe3fSMike Christie exit_init_fw_cb: 1318d00efe3fSMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 1319d00efe3fSMike Christie init_fw_cb, init_fw_cb_dma); 1320d00efe3fSMike Christie 1321d00efe3fSMike Christie return rval; 1322d00efe3fSMike Christie } 1323d00efe3fSMike Christie 1324fca9f04dSMike Christie static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 1325fca9f04dSMike Christie enum iscsi_param param, char *buf) 1326fca9f04dSMike Christie { 1327fca9f04dSMike Christie struct iscsi_session *sess = cls_sess->dd_data; 1328fca9f04dSMike Christie struct ddb_entry *ddb_entry = sess->dd_data; 1329fca9f04dSMike Christie struct scsi_qla_host *ha = ddb_entry->ha; 1330fca9f04dSMike Christie int rval, len; 1331fca9f04dSMike Christie uint16_t idx; 1332fca9f04dSMike Christie 1333fca9f04dSMike Christie switch (param) { 1334fca9f04dSMike Christie case ISCSI_PARAM_CHAP_IN_IDX: 1335fca9f04dSMike Christie rval = qla4xxx_get_chap_index(ha, sess->username_in, 1336fca9f04dSMike Christie sess->password_in, BIDI_CHAP, 1337fca9f04dSMike Christie &idx); 1338fca9f04dSMike Christie if (rval) 1339fca9f04dSMike Christie return -EINVAL; 1340fca9f04dSMike Christie 1341fca9f04dSMike Christie len = sprintf(buf, "%hu\n", idx); 1342fca9f04dSMike Christie break; 1343fca9f04dSMike Christie case ISCSI_PARAM_CHAP_OUT_IDX: 1344fca9f04dSMike Christie rval = qla4xxx_get_chap_index(ha, sess->username, 1345fca9f04dSMike Christie sess->password, LOCAL_CHAP, 1346fca9f04dSMike Christie &idx); 1347fca9f04dSMike Christie if (rval) 1348fca9f04dSMike Christie return -EINVAL; 1349fca9f04dSMike Christie 1350fca9f04dSMike Christie len = sprintf(buf, "%hu\n", idx); 1351fca9f04dSMike Christie break; 1352fca9f04dSMike Christie default: 1353fca9f04dSMike Christie return iscsi_session_get_param(cls_sess, param, buf); 1354fca9f04dSMike Christie } 1355fca9f04dSMike Christie 1356fca9f04dSMike Christie return len; 1357fca9f04dSMike Christie } 1358fca9f04dSMike Christie 1359b3a271a9SManish Rangankar static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 1360afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 1361afaf5a2dSDavid Somayajulu { 1362b3a271a9SManish Rangankar struct iscsi_conn *conn; 1363b3a271a9SManish Rangankar struct qla_conn *qla_conn; 1364b3a271a9SManish Rangankar struct sockaddr *dst_addr; 1365b3a271a9SManish Rangankar int len = 0; 1366afaf5a2dSDavid Somayajulu 1367b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1368b3a271a9SManish Rangankar qla_conn = conn->dd_data; 1369d46bdeb1SManish Rangankar dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 1370afaf5a2dSDavid Somayajulu 1371afaf5a2dSDavid Somayajulu switch (param) { 1372afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_PORT: 1373afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_ADDRESS: 1374b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1375b3a271a9SManish Rangankar dst_addr, param, buf); 1376afaf5a2dSDavid Somayajulu default: 1377b3a271a9SManish Rangankar return iscsi_conn_get_param(cls_conn, param, buf); 1378afaf5a2dSDavid Somayajulu } 1379afaf5a2dSDavid Somayajulu 1380afaf5a2dSDavid Somayajulu return len; 1381b3a271a9SManish Rangankar 1382afaf5a2dSDavid Somayajulu } 1383afaf5a2dSDavid Somayajulu 138413483730SMike Christie int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 138513483730SMike Christie { 138613483730SMike Christie uint32_t mbx_sts = 0; 138713483730SMike Christie uint16_t tmp_ddb_index; 138813483730SMike Christie int ret; 138913483730SMike Christie 139013483730SMike Christie get_ddb_index: 139113483730SMike Christie tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 139213483730SMike Christie 139313483730SMike Christie if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 139413483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 139513483730SMike Christie "Free DDB index not available\n")); 139613483730SMike Christie ret = QLA_ERROR; 139713483730SMike Christie goto exit_get_ddb_index; 139813483730SMike Christie } 139913483730SMike Christie 140013483730SMike Christie if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 140113483730SMike Christie goto get_ddb_index; 140213483730SMike Christie 140313483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 140413483730SMike Christie "Found a free DDB index at %d\n", tmp_ddb_index)); 140513483730SMike Christie ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 140613483730SMike Christie if (ret == QLA_ERROR) { 140713483730SMike Christie if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 140813483730SMike Christie ql4_printk(KERN_INFO, ha, 140913483730SMike Christie "DDB index = %d not available trying next\n", 141013483730SMike Christie tmp_ddb_index); 141113483730SMike Christie goto get_ddb_index; 141213483730SMike Christie } 141313483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 141413483730SMike Christie "Free FW DDB not available\n")); 141513483730SMike Christie } 141613483730SMike Christie 141713483730SMike Christie *ddb_index = tmp_ddb_index; 141813483730SMike Christie 141913483730SMike Christie exit_get_ddb_index: 142013483730SMike Christie return ret; 142113483730SMike Christie } 142213483730SMike Christie 142313483730SMike Christie static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 142413483730SMike Christie struct ddb_entry *ddb_entry, 142513483730SMike Christie char *existing_ipaddr, 142613483730SMike Christie char *user_ipaddr) 142713483730SMike Christie { 142813483730SMike Christie uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 142913483730SMike Christie char formatted_ipaddr[DDB_IPADDR_LEN]; 143013483730SMike Christie int status = QLA_SUCCESS, ret = 0; 143113483730SMike Christie 143213483730SMike Christie if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 143313483730SMike Christie ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 143413483730SMike Christie '\0', NULL); 143513483730SMike Christie if (ret == 0) { 143613483730SMike Christie status = QLA_ERROR; 143713483730SMike Christie goto out_match; 143813483730SMike Christie } 143913483730SMike Christie ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 144013483730SMike Christie } else { 144113483730SMike Christie ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 144213483730SMike Christie '\0', NULL); 144313483730SMike Christie if (ret == 0) { 144413483730SMike Christie status = QLA_ERROR; 144513483730SMike Christie goto out_match; 144613483730SMike Christie } 144713483730SMike Christie ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 144813483730SMike Christie } 144913483730SMike Christie 145013483730SMike Christie if (strcmp(existing_ipaddr, formatted_ipaddr)) 145113483730SMike Christie status = QLA_ERROR; 145213483730SMike Christie 145313483730SMike Christie out_match: 145413483730SMike Christie return status; 145513483730SMike Christie } 145613483730SMike Christie 145713483730SMike Christie static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 145813483730SMike Christie struct iscsi_cls_conn *cls_conn) 145913483730SMike Christie { 146013483730SMike Christie int idx = 0, max_ddbs, rval; 146113483730SMike Christie struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 146213483730SMike Christie struct iscsi_session *sess, *existing_sess; 146313483730SMike Christie struct iscsi_conn *conn, *existing_conn; 146413483730SMike Christie struct ddb_entry *ddb_entry; 146513483730SMike Christie 146613483730SMike Christie sess = cls_sess->dd_data; 146713483730SMike Christie conn = cls_conn->dd_data; 146813483730SMike Christie 146913483730SMike Christie if (sess->targetname == NULL || 147013483730SMike Christie conn->persistent_address == NULL || 147113483730SMike Christie conn->persistent_port == 0) 147213483730SMike Christie return QLA_ERROR; 147313483730SMike Christie 147413483730SMike Christie max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 147513483730SMike Christie MAX_DEV_DB_ENTRIES; 147613483730SMike Christie 147713483730SMike Christie for (idx = 0; idx < max_ddbs; idx++) { 147813483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 147913483730SMike Christie if (ddb_entry == NULL) 148013483730SMike Christie continue; 148113483730SMike Christie 148213483730SMike Christie if (ddb_entry->ddb_type != FLASH_DDB) 148313483730SMike Christie continue; 148413483730SMike Christie 148513483730SMike Christie existing_sess = ddb_entry->sess->dd_data; 148613483730SMike Christie existing_conn = ddb_entry->conn->dd_data; 148713483730SMike Christie 148813483730SMike Christie if (existing_sess->targetname == NULL || 148913483730SMike Christie existing_conn->persistent_address == NULL || 149013483730SMike Christie existing_conn->persistent_port == 0) 149113483730SMike Christie continue; 149213483730SMike Christie 149313483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 149413483730SMike Christie "IQN = %s User IQN = %s\n", 149513483730SMike Christie existing_sess->targetname, 149613483730SMike Christie sess->targetname)); 149713483730SMike Christie 149813483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 149913483730SMike Christie "IP = %s User IP = %s\n", 150013483730SMike Christie existing_conn->persistent_address, 150113483730SMike Christie conn->persistent_address)); 150213483730SMike Christie 150313483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 150413483730SMike Christie "Port = %d User Port = %d\n", 150513483730SMike Christie existing_conn->persistent_port, 150613483730SMike Christie conn->persistent_port)); 150713483730SMike Christie 150813483730SMike Christie if (strcmp(existing_sess->targetname, sess->targetname)) 150913483730SMike Christie continue; 151013483730SMike Christie rval = qla4xxx_match_ipaddress(ha, ddb_entry, 151113483730SMike Christie existing_conn->persistent_address, 151213483730SMike Christie conn->persistent_address); 151313483730SMike Christie if (rval == QLA_ERROR) 151413483730SMike Christie continue; 151513483730SMike Christie if (existing_conn->persistent_port != conn->persistent_port) 151613483730SMike Christie continue; 151713483730SMike Christie break; 151813483730SMike Christie } 151913483730SMike Christie 152013483730SMike Christie if (idx == max_ddbs) 152113483730SMike Christie return QLA_ERROR; 152213483730SMike Christie 152313483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 152413483730SMike Christie "Match found in fwdb sessions\n")); 152513483730SMike Christie return QLA_SUCCESS; 152613483730SMike Christie } 152713483730SMike Christie 1528b3a271a9SManish Rangankar static struct iscsi_cls_session * 1529b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, 1530b3a271a9SManish Rangankar uint16_t cmds_max, uint16_t qdepth, 1531b3a271a9SManish Rangankar uint32_t initial_cmdsn) 1532b3a271a9SManish Rangankar { 1533b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 1534b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1535b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 1536b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 153713483730SMike Christie uint16_t ddb_index; 1538b3a271a9SManish Rangankar struct iscsi_session *sess; 1539b3a271a9SManish Rangankar struct sockaddr *dst_addr; 1540b3a271a9SManish Rangankar int ret; 1541b3a271a9SManish Rangankar 1542b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1543b3a271a9SManish Rangankar if (!ep) { 1544b3a271a9SManish Rangankar printk(KERN_ERR "qla4xxx: missing ep.\n"); 1545b3a271a9SManish Rangankar return NULL; 1546b3a271a9SManish Rangankar } 1547b3a271a9SManish Rangankar 1548b3a271a9SManish Rangankar qla_ep = ep->dd_data; 1549b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1550b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 1551736cf369SManish Rangankar 155213483730SMike Christie ret = qla4xxx_get_ddb_index(ha, &ddb_index); 155313483730SMike Christie if (ret == QLA_ERROR) 1554b3a271a9SManish Rangankar return NULL; 1555b3a271a9SManish Rangankar 1556b3a271a9SManish Rangankar cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 1557b3a271a9SManish Rangankar cmds_max, sizeof(struct ddb_entry), 1558b3a271a9SManish Rangankar sizeof(struct ql4_task_data), 1559b3a271a9SManish Rangankar initial_cmdsn, ddb_index); 1560b3a271a9SManish Rangankar if (!cls_sess) 1561b3a271a9SManish Rangankar return NULL; 1562b3a271a9SManish Rangankar 1563b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1564b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1565b3a271a9SManish Rangankar ddb_entry->fw_ddb_index = ddb_index; 1566b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 1567b3a271a9SManish Rangankar ddb_entry->ha = ha; 1568b3a271a9SManish Rangankar ddb_entry->sess = cls_sess; 156913483730SMike Christie ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 157013483730SMike Christie ddb_entry->ddb_change = qla4xxx_ddb_change; 1571b3a271a9SManish Rangankar cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 1572b3a271a9SManish Rangankar ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1573b3a271a9SManish Rangankar ha->tot_ddbs++; 1574b3a271a9SManish Rangankar 1575b3a271a9SManish Rangankar return cls_sess; 1576b3a271a9SManish Rangankar } 1577b3a271a9SManish Rangankar 1578b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 1579b3a271a9SManish Rangankar { 1580b3a271a9SManish Rangankar struct iscsi_session *sess; 1581b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1582b3a271a9SManish Rangankar struct scsi_qla_host *ha; 158390599b62SManish Rangankar unsigned long flags, wtime; 158490599b62SManish Rangankar struct dev_db_entry *fw_ddb_entry = NULL; 158590599b62SManish Rangankar dma_addr_t fw_ddb_entry_dma; 158690599b62SManish Rangankar uint32_t ddb_state; 158790599b62SManish Rangankar int ret; 1588b3a271a9SManish Rangankar 1589b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1590b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1591b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1592b3a271a9SManish Rangankar ha = ddb_entry->ha; 1593b3a271a9SManish Rangankar 159490599b62SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 159590599b62SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 159690599b62SManish Rangankar if (!fw_ddb_entry) { 159790599b62SManish Rangankar ql4_printk(KERN_ERR, ha, 159890599b62SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 159990599b62SManish Rangankar goto destroy_session; 160090599b62SManish Rangankar } 160190599b62SManish Rangankar 160290599b62SManish Rangankar wtime = jiffies + (HZ * LOGOUT_TOV); 160390599b62SManish Rangankar do { 160490599b62SManish Rangankar ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 160590599b62SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma, 160690599b62SManish Rangankar NULL, NULL, &ddb_state, NULL, 160790599b62SManish Rangankar NULL, NULL); 160890599b62SManish Rangankar if (ret == QLA_ERROR) 160990599b62SManish Rangankar goto destroy_session; 161090599b62SManish Rangankar 161190599b62SManish Rangankar if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 161290599b62SManish Rangankar (ddb_state == DDB_DS_SESSION_FAILED)) 161390599b62SManish Rangankar goto destroy_session; 161490599b62SManish Rangankar 161590599b62SManish Rangankar schedule_timeout_uninterruptible(HZ); 161690599b62SManish Rangankar } while ((time_after(wtime, jiffies))); 161790599b62SManish Rangankar 161890599b62SManish Rangankar destroy_session: 1619736cf369SManish Rangankar qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 1620736cf369SManish Rangankar 1621b3a271a9SManish Rangankar spin_lock_irqsave(&ha->hardware_lock, flags); 1622b3a271a9SManish Rangankar qla4xxx_free_ddb(ha, ddb_entry); 1623b3a271a9SManish Rangankar spin_unlock_irqrestore(&ha->hardware_lock, flags); 162490599b62SManish Rangankar 1625b3a271a9SManish Rangankar iscsi_session_teardown(cls_sess); 162690599b62SManish Rangankar 162790599b62SManish Rangankar if (fw_ddb_entry) 162890599b62SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 162990599b62SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 1630b3a271a9SManish Rangankar } 1631b3a271a9SManish Rangankar 1632b3a271a9SManish Rangankar static struct iscsi_cls_conn * 1633b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 1634b3a271a9SManish Rangankar { 1635b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1636b3a271a9SManish Rangankar struct iscsi_session *sess; 1637b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1638b3a271a9SManish Rangankar 1639b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1640b3a271a9SManish Rangankar cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 1641b3a271a9SManish Rangankar conn_idx); 1642ff1d0319SMike Christie if (!cls_conn) 1643ff1d0319SMike Christie return NULL; 1644ff1d0319SMike Christie 1645b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1646b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1647b3a271a9SManish Rangankar ddb_entry->conn = cls_conn; 1648b3a271a9SManish Rangankar 1649b3a271a9SManish Rangankar return cls_conn; 1650b3a271a9SManish Rangankar } 1651b3a271a9SManish Rangankar 1652b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 1653b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 1654b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading) 1655b3a271a9SManish Rangankar { 1656b3a271a9SManish Rangankar struct iscsi_conn *conn; 1657b3a271a9SManish Rangankar struct qla_conn *qla_conn; 1658b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 1659b3a271a9SManish Rangankar 1660b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1661b3a271a9SManish Rangankar 1662b3a271a9SManish Rangankar if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 1663b3a271a9SManish Rangankar return -EINVAL; 1664b3a271a9SManish Rangankar ep = iscsi_lookup_endpoint(transport_fd); 1665b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1666b3a271a9SManish Rangankar qla_conn = conn->dd_data; 1667b3a271a9SManish Rangankar qla_conn->qla_ep = ep->dd_data; 1668b3a271a9SManish Rangankar return 0; 1669b3a271a9SManish Rangankar } 1670b3a271a9SManish Rangankar 1671b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 1672b3a271a9SManish Rangankar { 1673b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1674b3a271a9SManish Rangankar struct iscsi_session *sess; 1675b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1676b3a271a9SManish Rangankar struct scsi_qla_host *ha; 167713483730SMike Christie struct dev_db_entry *fw_ddb_entry = NULL; 1678b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1679b3a271a9SManish Rangankar uint32_t mbx_sts = 0; 1680b3a271a9SManish Rangankar int ret = 0; 1681b3a271a9SManish Rangankar int status = QLA_SUCCESS; 1682b3a271a9SManish Rangankar 1683b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1684b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1685b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1686b3a271a9SManish Rangankar ha = ddb_entry->ha; 1687b3a271a9SManish Rangankar 168813483730SMike Christie /* Check if we have matching FW DDB, if yes then do not 168913483730SMike Christie * login to this target. This could cause target to logout previous 169013483730SMike Christie * connection 169113483730SMike Christie */ 169213483730SMike Christie ret = qla4xxx_match_fwdb_session(ha, cls_conn); 169313483730SMike Christie if (ret == QLA_SUCCESS) { 169413483730SMike Christie ql4_printk(KERN_INFO, ha, 169513483730SMike Christie "Session already exist in FW.\n"); 169613483730SMike Christie ret = -EEXIST; 169713483730SMike Christie goto exit_conn_start; 169813483730SMike Christie } 169913483730SMike Christie 1700b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1701b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1702b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1703b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1704b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 170513483730SMike Christie ret = -ENOMEM; 170613483730SMike Christie goto exit_conn_start; 1707b3a271a9SManish Rangankar } 1708b3a271a9SManish Rangankar 1709b3a271a9SManish Rangankar ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 1710b3a271a9SManish Rangankar if (ret) { 1711b3a271a9SManish Rangankar /* If iscsid is stopped and started then no need to do 1712b3a271a9SManish Rangankar * set param again since ddb state will be already 1713b3a271a9SManish Rangankar * active and FW does not allow set ddb to an 1714b3a271a9SManish Rangankar * active session. 1715b3a271a9SManish Rangankar */ 1716b3a271a9SManish Rangankar if (mbx_sts) 1717b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == 1718f922da79SManish Rangankar DDB_DS_SESSION_ACTIVE) { 171913483730SMike Christie ddb_entry->unblock_sess(ddb_entry->sess); 1720b3a271a9SManish Rangankar goto exit_set_param; 1721f922da79SManish Rangankar } 1722b3a271a9SManish Rangankar 1723b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 1724b3a271a9SManish Rangankar __func__, ddb_entry->fw_ddb_index); 1725b3a271a9SManish Rangankar goto exit_conn_start; 1726b3a271a9SManish Rangankar } 1727b3a271a9SManish Rangankar 1728b3a271a9SManish Rangankar status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1729b3a271a9SManish Rangankar if (status == QLA_ERROR) { 17300e7e8501SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 17310e7e8501SManish Rangankar sess->targetname); 1732b3a271a9SManish Rangankar ret = -EINVAL; 1733b3a271a9SManish Rangankar goto exit_conn_start; 1734b3a271a9SManish Rangankar } 1735b3a271a9SManish Rangankar 173698270ab4SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 1737b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1738b3a271a9SManish Rangankar 173998270ab4SManish Rangankar DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 174098270ab4SManish Rangankar ddb_entry->fw_ddb_device_state)); 174198270ab4SManish Rangankar 1742b3a271a9SManish Rangankar exit_set_param: 1743b3a271a9SManish Rangankar ret = 0; 1744b3a271a9SManish Rangankar 1745b3a271a9SManish Rangankar exit_conn_start: 174613483730SMike Christie if (fw_ddb_entry) 1747b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1748b3a271a9SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 1749b3a271a9SManish Rangankar return ret; 1750b3a271a9SManish Rangankar } 1751b3a271a9SManish Rangankar 1752b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 1753b3a271a9SManish Rangankar { 1754b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1755b3a271a9SManish Rangankar struct iscsi_session *sess; 1756b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1757b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1758b3a271a9SManish Rangankar int options; 1759b3a271a9SManish Rangankar 1760b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1761b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1762b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1763b3a271a9SManish Rangankar ha = ddb_entry->ha; 1764b3a271a9SManish Rangankar 1765b3a271a9SManish Rangankar options = LOGOUT_OPTION_CLOSE_SESSION; 1766b3a271a9SManish Rangankar if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 1767b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 1768b3a271a9SManish Rangankar } 1769b3a271a9SManish Rangankar 1770b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata) 1771b3a271a9SManish Rangankar { 1772b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1773b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1774b3a271a9SManish Rangankar struct passthru_status *sts; 1775b3a271a9SManish Rangankar struct iscsi_task *task; 1776b3a271a9SManish Rangankar struct iscsi_hdr *hdr; 1777b3a271a9SManish Rangankar uint8_t *data; 1778b3a271a9SManish Rangankar uint32_t data_len; 1779b3a271a9SManish Rangankar struct iscsi_conn *conn; 1780b3a271a9SManish Rangankar int hdr_len; 1781b3a271a9SManish Rangankar itt_t itt; 1782b3a271a9SManish Rangankar 1783b3a271a9SManish Rangankar task_data = container_of(wdata, struct ql4_task_data, task_work); 1784b3a271a9SManish Rangankar ha = task_data->ha; 1785b3a271a9SManish Rangankar task = task_data->task; 1786b3a271a9SManish Rangankar sts = &task_data->sts; 1787b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1788b3a271a9SManish Rangankar 1789b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Status returned\n")); 1790b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(sts, 64)); 1791b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Response buffer")); 1792b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 1793b3a271a9SManish Rangankar 1794b3a271a9SManish Rangankar conn = task->conn; 1795b3a271a9SManish Rangankar 1796b3a271a9SManish Rangankar switch (sts->completionStatus) { 1797b3a271a9SManish Rangankar case PASSTHRU_STATUS_COMPLETE: 1798b3a271a9SManish Rangankar hdr = (struct iscsi_hdr *)task_data->resp_buffer; 1799b3a271a9SManish Rangankar /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 1800b3a271a9SManish Rangankar itt = sts->handle; 1801b3a271a9SManish Rangankar hdr->itt = itt; 1802b3a271a9SManish Rangankar data = task_data->resp_buffer + hdr_len; 1803b3a271a9SManish Rangankar data_len = task_data->resp_len - hdr_len; 1804b3a271a9SManish Rangankar iscsi_complete_pdu(conn, hdr, data, data_len); 1805b3a271a9SManish Rangankar break; 1806b3a271a9SManish Rangankar default: 1807b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 1808b3a271a9SManish Rangankar sts->completionStatus); 1809b3a271a9SManish Rangankar break; 1810b3a271a9SManish Rangankar } 1811b3a271a9SManish Rangankar return; 1812b3a271a9SManish Rangankar } 1813b3a271a9SManish Rangankar 1814b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 1815b3a271a9SManish Rangankar { 1816b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1817b3a271a9SManish Rangankar struct iscsi_session *sess; 1818b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1819b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1820b3a271a9SManish Rangankar int hdr_len; 1821b3a271a9SManish Rangankar 1822b3a271a9SManish Rangankar sess = task->conn->session; 1823b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1824b3a271a9SManish Rangankar ha = ddb_entry->ha; 1825b3a271a9SManish Rangankar task_data = task->dd_data; 1826b3a271a9SManish Rangankar memset(task_data, 0, sizeof(struct ql4_task_data)); 1827b3a271a9SManish Rangankar 1828b3a271a9SManish Rangankar if (task->sc) { 1829b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, 1830b3a271a9SManish Rangankar "%s: SCSI Commands not implemented\n", __func__); 1831b3a271a9SManish Rangankar return -EINVAL; 1832b3a271a9SManish Rangankar } 1833b3a271a9SManish Rangankar 1834b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1835b3a271a9SManish Rangankar task_data->ha = ha; 1836b3a271a9SManish Rangankar task_data->task = task; 1837b3a271a9SManish Rangankar 1838b3a271a9SManish Rangankar if (task->data_count) { 1839b3a271a9SManish Rangankar task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 1840b3a271a9SManish Rangankar task->data_count, 1841b3a271a9SManish Rangankar PCI_DMA_TODEVICE); 1842b3a271a9SManish Rangankar } 1843b3a271a9SManish Rangankar 1844b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1845b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1846b3a271a9SManish Rangankar 184769ca216eSManish Rangankar task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 1848b3a271a9SManish Rangankar task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 1849b3a271a9SManish Rangankar task_data->resp_len, 1850b3a271a9SManish Rangankar &task_data->resp_dma, 1851b3a271a9SManish Rangankar GFP_ATOMIC); 1852b3a271a9SManish Rangankar if (!task_data->resp_buffer) 1853b3a271a9SManish Rangankar goto exit_alloc_pdu; 1854b3a271a9SManish Rangankar 185569ca216eSManish Rangankar task_data->req_len = task->data_count + hdr_len; 1856b3a271a9SManish Rangankar task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 185769ca216eSManish Rangankar task_data->req_len, 1858b3a271a9SManish Rangankar &task_data->req_dma, 1859b3a271a9SManish Rangankar GFP_ATOMIC); 1860b3a271a9SManish Rangankar if (!task_data->req_buffer) 1861b3a271a9SManish Rangankar goto exit_alloc_pdu; 1862b3a271a9SManish Rangankar 1863b3a271a9SManish Rangankar task->hdr = task_data->req_buffer; 1864b3a271a9SManish Rangankar 1865b3a271a9SManish Rangankar INIT_WORK(&task_data->task_work, qla4xxx_task_work); 1866b3a271a9SManish Rangankar 1867b3a271a9SManish Rangankar return 0; 1868b3a271a9SManish Rangankar 1869b3a271a9SManish Rangankar exit_alloc_pdu: 1870b3a271a9SManish Rangankar if (task_data->resp_buffer) 1871b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1872b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 1873b3a271a9SManish Rangankar 1874b3a271a9SManish Rangankar if (task_data->req_buffer) 187569ca216eSManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->req_len, 1876b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1877b3a271a9SManish Rangankar return -ENOMEM; 1878b3a271a9SManish Rangankar } 1879b3a271a9SManish Rangankar 1880b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *task) 1881b3a271a9SManish Rangankar { 1882b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1883b3a271a9SManish Rangankar struct iscsi_session *sess; 1884b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1885b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1886b3a271a9SManish Rangankar int hdr_len; 1887b3a271a9SManish Rangankar 1888b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1889b3a271a9SManish Rangankar sess = task->conn->session; 1890b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1891b3a271a9SManish Rangankar ha = ddb_entry->ha; 1892b3a271a9SManish Rangankar task_data = task->dd_data; 1893b3a271a9SManish Rangankar 1894b3a271a9SManish Rangankar if (task->data_count) { 1895b3a271a9SManish Rangankar dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 1896b3a271a9SManish Rangankar task->data_count, PCI_DMA_TODEVICE); 1897b3a271a9SManish Rangankar } 1898b3a271a9SManish Rangankar 1899b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1900b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1901b3a271a9SManish Rangankar 1902b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1903b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 190469ca216eSManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->req_len, 1905b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1906b3a271a9SManish Rangankar return; 1907b3a271a9SManish Rangankar } 1908b3a271a9SManish Rangankar 1909b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *task) 1910b3a271a9SManish Rangankar { 1911b3a271a9SManish Rangankar struct scsi_cmnd *sc = task->sc; 1912b3a271a9SManish Rangankar struct iscsi_session *sess = task->conn->session; 1913b3a271a9SManish Rangankar struct ddb_entry *ddb_entry = sess->dd_data; 1914b3a271a9SManish Rangankar struct scsi_qla_host *ha = ddb_entry->ha; 1915b3a271a9SManish Rangankar 1916b3a271a9SManish Rangankar if (!sc) 1917b3a271a9SManish Rangankar return qla4xxx_send_passthru0(task); 1918b3a271a9SManish Rangankar 1919b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 1920b3a271a9SManish Rangankar __func__); 1921b3a271a9SManish Rangankar return -ENOSYS; 1922b3a271a9SManish Rangankar } 1923b3a271a9SManish Rangankar 192413483730SMike Christie static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 192513483730SMike Christie struct dev_db_entry *fw_ddb_entry, 192613483730SMike Christie struct iscsi_cls_session *cls_sess, 192713483730SMike Christie struct iscsi_cls_conn *cls_conn) 192813483730SMike Christie { 192913483730SMike Christie int buflen = 0; 193013483730SMike Christie struct iscsi_session *sess; 1931376738afSNilesh Javali struct ddb_entry *ddb_entry; 193213483730SMike Christie struct iscsi_conn *conn; 193313483730SMike Christie char ip_addr[DDB_IPADDR_LEN]; 193413483730SMike Christie uint16_t options = 0; 193513483730SMike Christie 193613483730SMike Christie sess = cls_sess->dd_data; 1937376738afSNilesh Javali ddb_entry = sess->dd_data; 193813483730SMike Christie conn = cls_conn->dd_data; 193913483730SMike Christie 1940376738afSNilesh Javali ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 1941376738afSNilesh Javali 194213483730SMike Christie conn->max_recv_dlength = BYTE_UNITS * 194313483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 194413483730SMike Christie 194513483730SMike Christie conn->max_xmit_dlength = BYTE_UNITS * 194613483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 194713483730SMike Christie 194813483730SMike Christie sess->initial_r2t_en = 194913483730SMike Christie (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 195013483730SMike Christie 195113483730SMike Christie sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 195213483730SMike Christie 195313483730SMike Christie sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 195413483730SMike Christie 195513483730SMike Christie sess->first_burst = BYTE_UNITS * 195613483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 195713483730SMike Christie 195813483730SMike Christie sess->max_burst = BYTE_UNITS * 195913483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 196013483730SMike Christie 196113483730SMike Christie sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 196213483730SMike Christie 196313483730SMike Christie sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 196413483730SMike Christie 196513483730SMike Christie conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 196613483730SMike Christie 196713483730SMike Christie sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 196813483730SMike Christie 196913483730SMike Christie options = le16_to_cpu(fw_ddb_entry->options); 197013483730SMike Christie if (options & DDB_OPT_IPV6_DEVICE) 197113483730SMike Christie sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 197213483730SMike Christie else 197313483730SMike Christie sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 197413483730SMike Christie 197513483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 197613483730SMike Christie (char *)fw_ddb_entry->iscsi_name, buflen); 197713483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 197813483730SMike Christie (char *)ha->name_string, buflen); 197913483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 198013483730SMike Christie (char *)ip_addr, buflen); 19816c1b8789SVikas Chaudhary iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS, 19826c1b8789SVikas Chaudhary (char *)fw_ddb_entry->iscsi_alias, buflen); 198313483730SMike Christie } 198413483730SMike Christie 198513483730SMike Christie void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 198613483730SMike Christie struct ddb_entry *ddb_entry) 198713483730SMike Christie { 198813483730SMike Christie struct iscsi_cls_session *cls_sess; 198913483730SMike Christie struct iscsi_cls_conn *cls_conn; 199013483730SMike Christie uint32_t ddb_state; 199113483730SMike Christie dma_addr_t fw_ddb_entry_dma; 199213483730SMike Christie struct dev_db_entry *fw_ddb_entry; 199313483730SMike Christie 199413483730SMike Christie fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 199513483730SMike Christie &fw_ddb_entry_dma, GFP_KERNEL); 199613483730SMike Christie if (!fw_ddb_entry) { 199713483730SMike Christie ql4_printk(KERN_ERR, ha, 199813483730SMike Christie "%s: Unable to allocate dma buffer\n", __func__); 199913483730SMike Christie goto exit_session_conn_fwddb_param; 200013483730SMike Christie } 200113483730SMike Christie 200213483730SMike Christie if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 200313483730SMike Christie fw_ddb_entry_dma, NULL, NULL, &ddb_state, 200413483730SMike Christie NULL, NULL, NULL) == QLA_ERROR) { 200513483730SMike Christie DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 200613483730SMike Christie "get_ddb_entry for fw_ddb_index %d\n", 200713483730SMike Christie ha->host_no, __func__, 200813483730SMike Christie ddb_entry->fw_ddb_index)); 200913483730SMike Christie goto exit_session_conn_fwddb_param; 201013483730SMike Christie } 201113483730SMike Christie 201213483730SMike Christie cls_sess = ddb_entry->sess; 201313483730SMike Christie 201413483730SMike Christie cls_conn = ddb_entry->conn; 201513483730SMike Christie 201613483730SMike Christie /* Update params */ 201713483730SMike Christie qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 201813483730SMike Christie 201913483730SMike Christie exit_session_conn_fwddb_param: 202013483730SMike Christie if (fw_ddb_entry) 202113483730SMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 202213483730SMike Christie fw_ddb_entry, fw_ddb_entry_dma); 202313483730SMike Christie } 202413483730SMike Christie 2025b3a271a9SManish Rangankar void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 2026b3a271a9SManish Rangankar struct ddb_entry *ddb_entry) 2027b3a271a9SManish Rangankar { 2028b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 2029b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 2030b3a271a9SManish Rangankar struct iscsi_session *sess; 2031b3a271a9SManish Rangankar struct iscsi_conn *conn; 2032b3a271a9SManish Rangankar uint32_t ddb_state; 2033b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 2034b3a271a9SManish Rangankar struct dev_db_entry *fw_ddb_entry; 2035b3a271a9SManish Rangankar 2036b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 2037b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 2038b3a271a9SManish Rangankar if (!fw_ddb_entry) { 2039b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 2040b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 204113483730SMike Christie goto exit_session_conn_param; 2042b3a271a9SManish Rangankar } 2043b3a271a9SManish Rangankar 2044b3a271a9SManish Rangankar if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 2045b3a271a9SManish Rangankar fw_ddb_entry_dma, NULL, NULL, &ddb_state, 2046b3a271a9SManish Rangankar NULL, NULL, NULL) == QLA_ERROR) { 2047b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 2048b3a271a9SManish Rangankar "get_ddb_entry for fw_ddb_index %d\n", 2049b3a271a9SManish Rangankar ha->host_no, __func__, 2050b3a271a9SManish Rangankar ddb_entry->fw_ddb_index)); 205113483730SMike Christie goto exit_session_conn_param; 2052b3a271a9SManish Rangankar } 2053b3a271a9SManish Rangankar 2054b3a271a9SManish Rangankar cls_sess = ddb_entry->sess; 2055b3a271a9SManish Rangankar sess = cls_sess->dd_data; 2056b3a271a9SManish Rangankar 2057b3a271a9SManish Rangankar cls_conn = ddb_entry->conn; 2058b3a271a9SManish Rangankar conn = cls_conn->dd_data; 2059b3a271a9SManish Rangankar 206013483730SMike Christie /* Update timers after login */ 206113483730SMike Christie ddb_entry->default_relogin_timeout = 2062c28eaacaSNilesh Javali (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 2063c28eaacaSNilesh Javali (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 2064c28eaacaSNilesh Javali le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 206513483730SMike Christie ddb_entry->default_time2wait = 206613483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 206713483730SMike Christie 2068b3a271a9SManish Rangankar /* Update params */ 2069376738afSNilesh Javali ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 2070b3a271a9SManish Rangankar conn->max_recv_dlength = BYTE_UNITS * 2071b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 2072b3a271a9SManish Rangankar 2073b3a271a9SManish Rangankar conn->max_xmit_dlength = BYTE_UNITS * 2074b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 2075b3a271a9SManish Rangankar 2076b3a271a9SManish Rangankar sess->initial_r2t_en = 2077b3a271a9SManish Rangankar (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 2078b3a271a9SManish Rangankar 2079b3a271a9SManish Rangankar sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 2080b3a271a9SManish Rangankar 2081b3a271a9SManish Rangankar sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 2082b3a271a9SManish Rangankar 2083b3a271a9SManish Rangankar sess->first_burst = BYTE_UNITS * 2084b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 2085b3a271a9SManish Rangankar 2086b3a271a9SManish Rangankar sess->max_burst = BYTE_UNITS * 2087b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 2088b3a271a9SManish Rangankar 2089b3a271a9SManish Rangankar sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 2090b3a271a9SManish Rangankar 2091b3a271a9SManish Rangankar sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 2092b3a271a9SManish Rangankar 2093b3a271a9SManish Rangankar sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 2094b3a271a9SManish Rangankar 2095b3a271a9SManish Rangankar memcpy(sess->initiatorname, ha->name_string, 2096b3a271a9SManish Rangankar min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 209713483730SMike Christie 20986c1b8789SVikas Chaudhary iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS, 20996c1b8789SVikas Chaudhary (char *)fw_ddb_entry->iscsi_alias, 0); 21006c1b8789SVikas Chaudhary 210113483730SMike Christie exit_session_conn_param: 210213483730SMike Christie if (fw_ddb_entry) 210313483730SMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 210413483730SMike Christie fw_ddb_entry, fw_ddb_entry_dma); 2105b3a271a9SManish Rangankar } 2106b3a271a9SManish Rangankar 2107afaf5a2dSDavid Somayajulu /* 2108afaf5a2dSDavid Somayajulu * Timer routines 2109afaf5a2dSDavid Somayajulu */ 2110afaf5a2dSDavid Somayajulu 2111afaf5a2dSDavid Somayajulu static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 2112afaf5a2dSDavid Somayajulu unsigned long interval) 2113afaf5a2dSDavid Somayajulu { 2114afaf5a2dSDavid Somayajulu DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 2115afaf5a2dSDavid Somayajulu __func__, ha->host->host_no)); 2116afaf5a2dSDavid Somayajulu init_timer(&ha->timer); 2117afaf5a2dSDavid Somayajulu ha->timer.expires = jiffies + interval * HZ; 2118afaf5a2dSDavid Somayajulu ha->timer.data = (unsigned long)ha; 2119afaf5a2dSDavid Somayajulu ha->timer.function = (void (*)(unsigned long))func; 2120afaf5a2dSDavid Somayajulu add_timer(&ha->timer); 2121afaf5a2dSDavid Somayajulu ha->timer_active = 1; 2122afaf5a2dSDavid Somayajulu } 2123afaf5a2dSDavid Somayajulu 2124afaf5a2dSDavid Somayajulu static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 2125afaf5a2dSDavid Somayajulu { 2126afaf5a2dSDavid Somayajulu del_timer_sync(&ha->timer); 2127afaf5a2dSDavid Somayajulu ha->timer_active = 0; 2128afaf5a2dSDavid Somayajulu } 2129afaf5a2dSDavid Somayajulu 2130afaf5a2dSDavid Somayajulu /*** 2131b3a271a9SManish Rangankar * qla4xxx_mark_device_missing - blocks the session 2132b3a271a9SManish Rangankar * @cls_session: Pointer to the session to be blocked 2133afaf5a2dSDavid Somayajulu * @ddb_entry: Pointer to device database entry 2134afaf5a2dSDavid Somayajulu * 2135f4f5df23SVikas Chaudhary * This routine marks a device missing and close connection. 2136afaf5a2dSDavid Somayajulu **/ 2137b3a271a9SManish Rangankar void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 2138afaf5a2dSDavid Somayajulu { 2139b3a271a9SManish Rangankar iscsi_block_session(cls_session); 2140afaf5a2dSDavid Somayajulu } 2141afaf5a2dSDavid Somayajulu 2142f4f5df23SVikas Chaudhary /** 2143f4f5df23SVikas Chaudhary * qla4xxx_mark_all_devices_missing - mark all devices as missing. 2144f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 2145f4f5df23SVikas Chaudhary * 2146f4f5df23SVikas Chaudhary * This routine marks a device missing and resets the relogin retry count. 2147f4f5df23SVikas Chaudhary **/ 2148f4f5df23SVikas Chaudhary void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 2149f4f5df23SVikas Chaudhary { 2150b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 2151f4f5df23SVikas Chaudhary } 2152f4f5df23SVikas Chaudhary 2153afaf5a2dSDavid Somayajulu static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 2154afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, 21558f0722caSVikas Chaudhary struct scsi_cmnd *cmd) 2156afaf5a2dSDavid Somayajulu { 2157afaf5a2dSDavid Somayajulu struct srb *srb; 2158afaf5a2dSDavid Somayajulu 2159afaf5a2dSDavid Somayajulu srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 2160afaf5a2dSDavid Somayajulu if (!srb) 2161afaf5a2dSDavid Somayajulu return srb; 2162afaf5a2dSDavid Somayajulu 216309a0f719SVikas Chaudhary kref_init(&srb->srb_ref); 2164afaf5a2dSDavid Somayajulu srb->ha = ha; 2165afaf5a2dSDavid Somayajulu srb->ddb = ddb_entry; 2166afaf5a2dSDavid Somayajulu srb->cmd = cmd; 2167afaf5a2dSDavid Somayajulu srb->flags = 0; 21685369887aSVikas Chaudhary CMD_SP(cmd) = (void *)srb; 2169afaf5a2dSDavid Somayajulu 2170afaf5a2dSDavid Somayajulu return srb; 2171afaf5a2dSDavid Somayajulu } 2172afaf5a2dSDavid Somayajulu 2173afaf5a2dSDavid Somayajulu static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 2174afaf5a2dSDavid Somayajulu { 2175afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 2176afaf5a2dSDavid Somayajulu 2177afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 21785f7186c8SFUJITA Tomonori scsi_dma_unmap(cmd); 2179afaf5a2dSDavid Somayajulu srb->flags &= ~SRB_DMA_VALID; 2180afaf5a2dSDavid Somayajulu } 21815369887aSVikas Chaudhary CMD_SP(cmd) = NULL; 2182afaf5a2dSDavid Somayajulu } 2183afaf5a2dSDavid Somayajulu 218409a0f719SVikas Chaudhary void qla4xxx_srb_compl(struct kref *ref) 2185afaf5a2dSDavid Somayajulu { 218609a0f719SVikas Chaudhary struct srb *srb = container_of(ref, struct srb, srb_ref); 2187afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 218809a0f719SVikas Chaudhary struct scsi_qla_host *ha = srb->ha; 2189afaf5a2dSDavid Somayajulu 2190afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 2191afaf5a2dSDavid Somayajulu 2192afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 2193afaf5a2dSDavid Somayajulu 2194afaf5a2dSDavid Somayajulu cmd->scsi_done(cmd); 2195afaf5a2dSDavid Somayajulu } 2196afaf5a2dSDavid Somayajulu 2197afaf5a2dSDavid Somayajulu /** 2198afaf5a2dSDavid Somayajulu * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 21998f0722caSVikas Chaudhary * @host: scsi host 2200afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 2201afaf5a2dSDavid Somayajulu * 2202afaf5a2dSDavid Somayajulu * Remarks: 2203afaf5a2dSDavid Somayajulu * This routine is invoked by Linux to send a SCSI command to the driver. 2204afaf5a2dSDavid Somayajulu * The mid-level driver tries to ensure that queuecommand never gets 2205afaf5a2dSDavid Somayajulu * invoked concurrently with itself or the interrupt handler (although 2206afaf5a2dSDavid Somayajulu * the interrupt handler may call this routine as part of request- 2207afaf5a2dSDavid Somayajulu * completion handling). Unfortunely, it sometimes calls the scheduler 2208afaf5a2dSDavid Somayajulu * in interrupt context which is a big NO! NO!. 2209afaf5a2dSDavid Somayajulu **/ 22108f0722caSVikas Chaudhary static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 2211afaf5a2dSDavid Somayajulu { 22128f0722caSVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(host); 2213afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 22147fb1921bSMike Christie struct iscsi_cls_session *sess = ddb_entry->sess; 2215afaf5a2dSDavid Somayajulu struct srb *srb; 2216afaf5a2dSDavid Somayajulu int rval; 2217afaf5a2dSDavid Somayajulu 22182232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 22192232be0dSLalit Chandivade if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 22202232be0dSLalit Chandivade cmd->result = DID_NO_CONNECT << 16; 22212232be0dSLalit Chandivade else 22222232be0dSLalit Chandivade cmd->result = DID_REQUEUE << 16; 22232232be0dSLalit Chandivade goto qc_fail_command; 22242232be0dSLalit Chandivade } 22252232be0dSLalit Chandivade 22267fb1921bSMike Christie if (!sess) { 22277fb1921bSMike Christie cmd->result = DID_IMM_RETRY << 16; 22287fb1921bSMike Christie goto qc_fail_command; 22297fb1921bSMike Christie } 22307fb1921bSMike Christie 22317fb1921bSMike Christie rval = iscsi_session_chkready(sess); 22327fb1921bSMike Christie if (rval) { 22337fb1921bSMike Christie cmd->result = rval; 22347fb1921bSMike Christie goto qc_fail_command; 22357fb1921bSMike Christie } 22367fb1921bSMike Christie 2237f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2238f4f5df23SVikas Chaudhary test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2239f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2240f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 2241f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 2242f4f5df23SVikas Chaudhary !test_bit(AF_ONLINE, &ha->flags) || 2243b3a271a9SManish Rangankar !test_bit(AF_LINK_UP, &ha->flags) || 2244f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 2245477ffb9dSDavid C Somayajulu goto qc_host_busy; 2246477ffb9dSDavid C Somayajulu 22478f0722caSVikas Chaudhary srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 2248afaf5a2dSDavid Somayajulu if (!srb) 22498f0722caSVikas Chaudhary goto qc_host_busy; 2250afaf5a2dSDavid Somayajulu 2251afaf5a2dSDavid Somayajulu rval = qla4xxx_send_command_to_isp(ha, srb); 2252afaf5a2dSDavid Somayajulu if (rval != QLA_SUCCESS) 2253afaf5a2dSDavid Somayajulu goto qc_host_busy_free_sp; 2254afaf5a2dSDavid Somayajulu 2255afaf5a2dSDavid Somayajulu return 0; 2256afaf5a2dSDavid Somayajulu 2257afaf5a2dSDavid Somayajulu qc_host_busy_free_sp: 2258afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 2259afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 2260afaf5a2dSDavid Somayajulu 2261afaf5a2dSDavid Somayajulu qc_host_busy: 2262afaf5a2dSDavid Somayajulu return SCSI_MLQUEUE_HOST_BUSY; 2263afaf5a2dSDavid Somayajulu 2264afaf5a2dSDavid Somayajulu qc_fail_command: 22658f0722caSVikas Chaudhary cmd->scsi_done(cmd); 2266afaf5a2dSDavid Somayajulu 2267afaf5a2dSDavid Somayajulu return 0; 2268afaf5a2dSDavid Somayajulu } 2269afaf5a2dSDavid Somayajulu 2270afaf5a2dSDavid Somayajulu /** 2271afaf5a2dSDavid Somayajulu * qla4xxx_mem_free - frees memory allocated to adapter 2272afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2273afaf5a2dSDavid Somayajulu * 2274afaf5a2dSDavid Somayajulu * Frees memory previously allocated by qla4xxx_mem_alloc 2275afaf5a2dSDavid Somayajulu **/ 2276afaf5a2dSDavid Somayajulu static void qla4xxx_mem_free(struct scsi_qla_host *ha) 2277afaf5a2dSDavid Somayajulu { 2278afaf5a2dSDavid Somayajulu if (ha->queues) 2279afaf5a2dSDavid Somayajulu dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 2280afaf5a2dSDavid Somayajulu ha->queues_dma); 2281afaf5a2dSDavid Somayajulu 2282068237c8STej Parkash if (ha->fw_dump) 2283068237c8STej Parkash vfree(ha->fw_dump); 2284068237c8STej Parkash 2285afaf5a2dSDavid Somayajulu ha->queues_len = 0; 2286afaf5a2dSDavid Somayajulu ha->queues = NULL; 2287afaf5a2dSDavid Somayajulu ha->queues_dma = 0; 2288afaf5a2dSDavid Somayajulu ha->request_ring = NULL; 2289afaf5a2dSDavid Somayajulu ha->request_dma = 0; 2290afaf5a2dSDavid Somayajulu ha->response_ring = NULL; 2291afaf5a2dSDavid Somayajulu ha->response_dma = 0; 2292afaf5a2dSDavid Somayajulu ha->shadow_regs = NULL; 2293afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = 0; 2294068237c8STej Parkash ha->fw_dump = NULL; 2295068237c8STej Parkash ha->fw_dump_size = 0; 2296afaf5a2dSDavid Somayajulu 2297afaf5a2dSDavid Somayajulu /* Free srb pool. */ 2298afaf5a2dSDavid Somayajulu if (ha->srb_mempool) 2299afaf5a2dSDavid Somayajulu mempool_destroy(ha->srb_mempool); 2300afaf5a2dSDavid Somayajulu 2301afaf5a2dSDavid Somayajulu ha->srb_mempool = NULL; 2302afaf5a2dSDavid Somayajulu 2303b3a271a9SManish Rangankar if (ha->chap_dma_pool) 2304b3a271a9SManish Rangankar dma_pool_destroy(ha->chap_dma_pool); 2305b3a271a9SManish Rangankar 23064549415aSLalit Chandivade if (ha->chap_list) 23074549415aSLalit Chandivade vfree(ha->chap_list); 23084549415aSLalit Chandivade ha->chap_list = NULL; 23094549415aSLalit Chandivade 231013483730SMike Christie if (ha->fw_ddb_dma_pool) 231113483730SMike Christie dma_pool_destroy(ha->fw_ddb_dma_pool); 231213483730SMike Christie 2313afaf5a2dSDavid Somayajulu /* release io space registers */ 2314f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2315f4f5df23SVikas Chaudhary if (ha->nx_pcibase) 2316f4f5df23SVikas Chaudhary iounmap( 2317f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)ha->nx_pcibase); 2318f4f5df23SVikas Chaudhary } else if (ha->reg) 2319afaf5a2dSDavid Somayajulu iounmap(ha->reg); 2320afaf5a2dSDavid Somayajulu pci_release_regions(ha->pdev); 2321afaf5a2dSDavid Somayajulu } 2322afaf5a2dSDavid Somayajulu 2323afaf5a2dSDavid Somayajulu /** 2324afaf5a2dSDavid Somayajulu * qla4xxx_mem_alloc - allocates memory for use by adapter. 2325afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 2326afaf5a2dSDavid Somayajulu * 2327afaf5a2dSDavid Somayajulu * Allocates DMA memory for request and response queues. Also allocates memory 2328afaf5a2dSDavid Somayajulu * for srbs. 2329afaf5a2dSDavid Somayajulu **/ 2330afaf5a2dSDavid Somayajulu static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 2331afaf5a2dSDavid Somayajulu { 2332afaf5a2dSDavid Somayajulu unsigned long align; 2333afaf5a2dSDavid Somayajulu 2334afaf5a2dSDavid Somayajulu /* Allocate contiguous block of DMA memory for queues. */ 2335afaf5a2dSDavid Somayajulu ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 2336afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 2337afaf5a2dSDavid Somayajulu sizeof(struct shadow_regs) + 2338afaf5a2dSDavid Somayajulu MEM_ALIGN_VALUE + 2339afaf5a2dSDavid Somayajulu (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 2340afaf5a2dSDavid Somayajulu ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 2341afaf5a2dSDavid Somayajulu &ha->queues_dma, GFP_KERNEL); 2342afaf5a2dSDavid Somayajulu if (ha->queues == NULL) { 2343c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2344afaf5a2dSDavid Somayajulu "Memory Allocation failed - queues.\n"); 2345afaf5a2dSDavid Somayajulu 2346afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 2347afaf5a2dSDavid Somayajulu } 2348afaf5a2dSDavid Somayajulu memset(ha->queues, 0, ha->queues_len); 2349afaf5a2dSDavid Somayajulu 2350afaf5a2dSDavid Somayajulu /* 2351afaf5a2dSDavid Somayajulu * As per RISC alignment requirements -- the bus-address must be a 2352afaf5a2dSDavid Somayajulu * multiple of the request-ring size (in bytes). 2353afaf5a2dSDavid Somayajulu */ 2354afaf5a2dSDavid Somayajulu align = 0; 2355afaf5a2dSDavid Somayajulu if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 2356afaf5a2dSDavid Somayajulu align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 2357afaf5a2dSDavid Somayajulu (MEM_ALIGN_VALUE - 1)); 2358afaf5a2dSDavid Somayajulu 2359afaf5a2dSDavid Somayajulu /* Update request and response queue pointers. */ 2360afaf5a2dSDavid Somayajulu ha->request_dma = ha->queues_dma + align; 2361afaf5a2dSDavid Somayajulu ha->request_ring = (struct queue_entry *) (ha->queues + align); 2362afaf5a2dSDavid Somayajulu ha->response_dma = ha->queues_dma + align + 2363afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 2364afaf5a2dSDavid Somayajulu ha->response_ring = (struct queue_entry *) (ha->queues + align + 2365afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 2366afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 2367afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = ha->queues_dma + align + 2368afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 2369afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 2370afaf5a2dSDavid Somayajulu ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 2371afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 2372afaf5a2dSDavid Somayajulu QUEUE_SIZE) + 2373afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * 2374afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 2375afaf5a2dSDavid Somayajulu 2376afaf5a2dSDavid Somayajulu /* Allocate memory for srb pool. */ 2377afaf5a2dSDavid Somayajulu ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 2378afaf5a2dSDavid Somayajulu mempool_free_slab, srb_cachep); 2379afaf5a2dSDavid Somayajulu if (ha->srb_mempool == NULL) { 2380c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2381afaf5a2dSDavid Somayajulu "Memory Allocation failed - SRB Pool.\n"); 2382afaf5a2dSDavid Somayajulu 2383afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 2384afaf5a2dSDavid Somayajulu } 2385afaf5a2dSDavid Somayajulu 2386b3a271a9SManish Rangankar ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 2387b3a271a9SManish Rangankar CHAP_DMA_BLOCK_SIZE, 8, 0); 2388b3a271a9SManish Rangankar 2389b3a271a9SManish Rangankar if (ha->chap_dma_pool == NULL) { 2390b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 2391b3a271a9SManish Rangankar "%s: chap_dma_pool allocation failed..\n", __func__); 2392b3a271a9SManish Rangankar goto mem_alloc_error_exit; 2393b3a271a9SManish Rangankar } 2394b3a271a9SManish Rangankar 239513483730SMike Christie ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 239613483730SMike Christie DDB_DMA_BLOCK_SIZE, 8, 0); 239713483730SMike Christie 239813483730SMike Christie if (ha->fw_ddb_dma_pool == NULL) { 239913483730SMike Christie ql4_printk(KERN_WARNING, ha, 240013483730SMike Christie "%s: fw_ddb_dma_pool allocation failed..\n", 240113483730SMike Christie __func__); 240213483730SMike Christie goto mem_alloc_error_exit; 240313483730SMike Christie } 240413483730SMike Christie 2405afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 2406afaf5a2dSDavid Somayajulu 2407afaf5a2dSDavid Somayajulu mem_alloc_error_exit: 2408afaf5a2dSDavid Somayajulu qla4xxx_mem_free(ha); 2409afaf5a2dSDavid Somayajulu return QLA_ERROR; 2410afaf5a2dSDavid Somayajulu } 2411afaf5a2dSDavid Somayajulu 2412afaf5a2dSDavid Somayajulu /** 24134f77083eSMike Hernandez * qla4_8xxx_check_temp - Check the ISP82XX temperature. 24144f77083eSMike Hernandez * @ha: adapter block pointer. 24154f77083eSMike Hernandez * 24164f77083eSMike Hernandez * Note: The caller should not hold the idc lock. 24174f77083eSMike Hernandez **/ 24184f77083eSMike Hernandez static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 24194f77083eSMike Hernandez { 24204f77083eSMike Hernandez uint32_t temp, temp_state, temp_val; 24214f77083eSMike Hernandez int status = QLA_SUCCESS; 24224f77083eSMike Hernandez 2423f8086f4fSVikas Chaudhary temp = qla4_82xx_rd_32(ha, CRB_TEMP_STATE); 24244f77083eSMike Hernandez 24254f77083eSMike Hernandez temp_state = qla82xx_get_temp_state(temp); 24264f77083eSMike Hernandez temp_val = qla82xx_get_temp_val(temp); 24274f77083eSMike Hernandez 24284f77083eSMike Hernandez if (temp_state == QLA82XX_TEMP_PANIC) { 24294f77083eSMike Hernandez ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 24304f77083eSMike Hernandez " exceeds maximum allowed. Hardware has been shut" 24314f77083eSMike Hernandez " down.\n", temp_val); 24324f77083eSMike Hernandez status = QLA_ERROR; 24334f77083eSMike Hernandez } else if (temp_state == QLA82XX_TEMP_WARN) { 24344f77083eSMike Hernandez if (ha->temperature == QLA82XX_TEMP_NORMAL) 24354f77083eSMike Hernandez ql4_printk(KERN_WARNING, ha, "Device temperature %d" 24364f77083eSMike Hernandez " degrees C exceeds operating range." 24374f77083eSMike Hernandez " Immediate action needed.\n", temp_val); 24384f77083eSMike Hernandez } else { 24394f77083eSMike Hernandez if (ha->temperature == QLA82XX_TEMP_WARN) 24404f77083eSMike Hernandez ql4_printk(KERN_INFO, ha, "Device temperature is" 24414f77083eSMike Hernandez " now %d degrees C in normal range.\n", 24424f77083eSMike Hernandez temp_val); 24434f77083eSMike Hernandez } 24444f77083eSMike Hernandez ha->temperature = temp_state; 24454f77083eSMike Hernandez return status; 24464f77083eSMike Hernandez } 24474f77083eSMike Hernandez 24484f77083eSMike Hernandez /** 2449f4f5df23SVikas Chaudhary * qla4_8xxx_check_fw_alive - Check firmware health 2450f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 2451f4f5df23SVikas Chaudhary * 2452f4f5df23SVikas Chaudhary * Context: Interrupt 2453f4f5df23SVikas Chaudhary **/ 24549ee91a38SShyam Sunder static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 2455f4f5df23SVikas Chaudhary { 24569ee91a38SShyam Sunder uint32_t fw_heartbeat_counter; 24579ee91a38SShyam Sunder int status = QLA_SUCCESS; 2458f4f5df23SVikas Chaudhary 2459f8086f4fSVikas Chaudhary fw_heartbeat_counter = qla4_82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 24602232be0dSLalit Chandivade /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 24612232be0dSLalit Chandivade if (fw_heartbeat_counter == 0xffffffff) { 24622232be0dSLalit Chandivade DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 24632232be0dSLalit Chandivade "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 24642232be0dSLalit Chandivade ha->host_no, __func__)); 24659ee91a38SShyam Sunder return status; 24662232be0dSLalit Chandivade } 2467f4f5df23SVikas Chaudhary 2468f4f5df23SVikas Chaudhary if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 2469f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat++; 2470f4f5df23SVikas Chaudhary /* FW not alive after 2 seconds */ 2471f4f5df23SVikas Chaudhary if (ha->seconds_since_last_heartbeat == 2) { 2472f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat = 0; 247368d92ebfSVikas Chaudhary 247468d92ebfSVikas Chaudhary ql4_printk(KERN_INFO, ha, 247568d92ebfSVikas Chaudhary "scsi(%ld): %s, Dumping hw/fw registers:\n " 247668d92ebfSVikas Chaudhary " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:" 247768d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:" 247868d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:" 247968d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_4_PC: 0x%x\n", 24809ee91a38SShyam Sunder ha->host_no, __func__, 2481f8086f4fSVikas Chaudhary qla4_82xx_rd_32(ha, 24829ee91a38SShyam Sunder QLA82XX_PEG_HALT_STATUS1), 2483f8086f4fSVikas Chaudhary qla4_82xx_rd_32(ha, 248468d92ebfSVikas Chaudhary QLA82XX_PEG_HALT_STATUS2), 2485f8086f4fSVikas Chaudhary qla4_82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 248668d92ebfSVikas Chaudhary 0x3c), 2487f8086f4fSVikas Chaudhary qla4_82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 248868d92ebfSVikas Chaudhary 0x3c), 2489f8086f4fSVikas Chaudhary qla4_82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 249068d92ebfSVikas Chaudhary 0x3c), 2491f8086f4fSVikas Chaudhary qla4_82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 249268d92ebfSVikas Chaudhary 0x3c), 2493f8086f4fSVikas Chaudhary qla4_82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 249468d92ebfSVikas Chaudhary 0x3c)); 24959ee91a38SShyam Sunder status = QLA_ERROR; 2496f4f5df23SVikas Chaudhary } 249799457d75SLalit Chandivade } else 249899457d75SLalit Chandivade ha->seconds_since_last_heartbeat = 0; 249999457d75SLalit Chandivade 2500f4f5df23SVikas Chaudhary ha->fw_heartbeat_counter = fw_heartbeat_counter; 25019ee91a38SShyam Sunder return status; 2502f4f5df23SVikas Chaudhary } 2503f4f5df23SVikas Chaudhary 2504f4f5df23SVikas Chaudhary /** 2505f4f5df23SVikas Chaudhary * qla4_8xxx_watchdog - Poll dev state 2506f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 2507f4f5df23SVikas Chaudhary * 2508f4f5df23SVikas Chaudhary * Context: Interrupt 2509f4f5df23SVikas Chaudhary **/ 2510f4f5df23SVikas Chaudhary void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 2511f4f5df23SVikas Chaudhary { 25129ee91a38SShyam Sunder uint32_t dev_state, halt_status; 2513f4f5df23SVikas Chaudhary 2514f4f5df23SVikas Chaudhary /* don't poll if reset is going on */ 2515d56a1f7bSLalit Chandivade if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2516d56a1f7bSLalit Chandivade test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2517977f46a4SVikas Chaudhary test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 2518f8086f4fSVikas Chaudhary dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 25194f77083eSMike Hernandez 25204f77083eSMike Hernandez if (qla4_8xxx_check_temp(ha)) { 2521e6bd0ebdSGiridhar Malavali ql4_printk(KERN_INFO, ha, "disabling pause" 2522e6bd0ebdSGiridhar Malavali " transmit on port 0 & 1.\n"); 2523f8086f4fSVikas Chaudhary qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2524e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P0 | 2525e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P1); 25264f77083eSMike Hernandez set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 25274f77083eSMike Hernandez qla4xxx_wake_dpc(ha); 2528de8c72daSVikas Chaudhary } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 2529f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 25303930b8c1SVikas Chaudhary if (!ql4xdontresethba) { 25313930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: " 25323930b8c1SVikas Chaudhary "NEED RESET!\n", __func__); 2533f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2534f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 25353930b8c1SVikas Chaudhary } 2536de8c72daSVikas Chaudhary } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 2537f4f5df23SVikas Chaudhary !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 25383930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 25393930b8c1SVikas Chaudhary __func__); 2540f4f5df23SVikas Chaudhary set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 2541f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 2542f4f5df23SVikas Chaudhary } else { 2543f4f5df23SVikas Chaudhary /* Check firmware health */ 25449ee91a38SShyam Sunder if (qla4_8xxx_check_fw_alive(ha)) { 2545e6bd0ebdSGiridhar Malavali ql4_printk(KERN_INFO, ha, "disabling pause" 2546e6bd0ebdSGiridhar Malavali " transmit on port 0 & 1.\n"); 2547f8086f4fSVikas Chaudhary qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2548e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P0 | 2549e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P1); 2550f8086f4fSVikas Chaudhary halt_status = qla4_82xx_rd_32(ha, 25519ee91a38SShyam Sunder QLA82XX_PEG_HALT_STATUS1); 25529ee91a38SShyam Sunder 255346801ba6SVikas Chaudhary if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 2554527c8b2eSNilesh Javali ql4_printk(KERN_ERR, ha, "%s:" 2555527c8b2eSNilesh Javali " Firmware aborted with" 2556527c8b2eSNilesh Javali " error code 0x00006700." 2557527c8b2eSNilesh Javali " Device is being reset\n", 2558527c8b2eSNilesh Javali __func__); 2559527c8b2eSNilesh Javali 25609ee91a38SShyam Sunder /* Since we cannot change dev_state in interrupt 25619ee91a38SShyam Sunder * context, set appropriate DPC flag then wakeup 25629ee91a38SShyam Sunder * DPC */ 25639ee91a38SShyam Sunder if (halt_status & HALT_STATUS_UNRECOVERABLE) 25649ee91a38SShyam Sunder set_bit(DPC_HA_UNRECOVERABLE, 25659ee91a38SShyam Sunder &ha->dpc_flags); 25669ee91a38SShyam Sunder else { 25679ee91a38SShyam Sunder ql4_printk(KERN_INFO, ha, "%s: detect " 25689ee91a38SShyam Sunder "abort needed!\n", __func__); 25699ee91a38SShyam Sunder set_bit(DPC_RESET_HA, &ha->dpc_flags); 25709ee91a38SShyam Sunder } 25719ee91a38SShyam Sunder qla4xxx_mailbox_premature_completion(ha); 25729ee91a38SShyam Sunder qla4xxx_wake_dpc(ha); 25739ee91a38SShyam Sunder } 2574f4f5df23SVikas Chaudhary } 2575f4f5df23SVikas Chaudhary } 2576f4f5df23SVikas Chaudhary } 2577f4f5df23SVikas Chaudhary 25784a4bc2e9SLalit Chandivade static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 257913483730SMike Christie { 258013483730SMike Christie struct iscsi_session *sess; 258113483730SMike Christie struct ddb_entry *ddb_entry; 258213483730SMike Christie struct scsi_qla_host *ha; 258313483730SMike Christie 258413483730SMike Christie sess = cls_sess->dd_data; 258513483730SMike Christie ddb_entry = sess->dd_data; 258613483730SMike Christie ha = ddb_entry->ha; 258713483730SMike Christie 258813483730SMike Christie if (!(ddb_entry->ddb_type == FLASH_DDB)) 258913483730SMike Christie return; 259013483730SMike Christie 259113483730SMike Christie if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 259213483730SMike Christie !iscsi_is_session_online(cls_sess)) { 259313483730SMike Christie if (atomic_read(&ddb_entry->retry_relogin_timer) != 259413483730SMike Christie INVALID_ENTRY) { 259513483730SMike Christie if (atomic_read(&ddb_entry->retry_relogin_timer) == 259613483730SMike Christie 0) { 259713483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, 259813483730SMike Christie INVALID_ENTRY); 259913483730SMike Christie set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 260013483730SMike Christie set_bit(DF_RELOGIN, &ddb_entry->flags); 260113483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 260213483730SMike Christie "%s: index [%d] login device\n", 260313483730SMike Christie __func__, ddb_entry->fw_ddb_index)); 260413483730SMike Christie } else 260513483730SMike Christie atomic_dec(&ddb_entry->retry_relogin_timer); 260613483730SMike Christie } 260713483730SMike Christie } 260813483730SMike Christie 260913483730SMike Christie /* Wait for relogin to timeout */ 261013483730SMike Christie if (atomic_read(&ddb_entry->relogin_timer) && 261113483730SMike Christie (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 261213483730SMike Christie /* 261313483730SMike Christie * If the relogin times out and the device is 261413483730SMike Christie * still NOT ONLINE then try and relogin again. 261513483730SMike Christie */ 261613483730SMike Christie if (!iscsi_is_session_online(cls_sess)) { 261713483730SMike Christie /* Reset retry relogin timer */ 261813483730SMike Christie atomic_inc(&ddb_entry->relogin_retry_count); 261913483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 262013483730SMike Christie "%s: index[%d] relogin timed out-retrying" 262113483730SMike Christie " relogin (%d), retry (%d)\n", __func__, 262213483730SMike Christie ddb_entry->fw_ddb_index, 262313483730SMike Christie atomic_read(&ddb_entry->relogin_retry_count), 262413483730SMike Christie ddb_entry->default_time2wait + 4)); 262513483730SMike Christie set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 262613483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, 262713483730SMike Christie ddb_entry->default_time2wait + 4); 262813483730SMike Christie } 262913483730SMike Christie } 263013483730SMike Christie } 263113483730SMike Christie 2632f4f5df23SVikas Chaudhary /** 2633afaf5a2dSDavid Somayajulu * qla4xxx_timer - checks every second for work to do. 2634afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2635afaf5a2dSDavid Somayajulu **/ 2636afaf5a2dSDavid Somayajulu static void qla4xxx_timer(struct scsi_qla_host *ha) 2637afaf5a2dSDavid Somayajulu { 2638afaf5a2dSDavid Somayajulu int start_dpc = 0; 26392232be0dSLalit Chandivade uint16_t w; 26402232be0dSLalit Chandivade 264113483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 264213483730SMike Christie 26432232be0dSLalit Chandivade /* If we are in the middle of AER/EEH processing 26442232be0dSLalit Chandivade * skip any processing and reschedule the timer 26452232be0dSLalit Chandivade */ 26462232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 26472232be0dSLalit Chandivade mod_timer(&ha->timer, jiffies + HZ); 26482232be0dSLalit Chandivade return; 26492232be0dSLalit Chandivade } 26502232be0dSLalit Chandivade 26512232be0dSLalit Chandivade /* Hardware read to trigger an EEH error during mailbox waits. */ 26522232be0dSLalit Chandivade if (!pci_channel_offline(ha->pdev)) 26532232be0dSLalit Chandivade pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 2654afaf5a2dSDavid Somayajulu 2655f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2656f4f5df23SVikas Chaudhary qla4_8xxx_watchdog(ha); 2657f4f5df23SVikas Chaudhary } 2658f4f5df23SVikas Chaudhary 2659f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 2660afaf5a2dSDavid Somayajulu /* Check for heartbeat interval. */ 2661afaf5a2dSDavid Somayajulu if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 2662afaf5a2dSDavid Somayajulu ha->heartbeat_interval != 0) { 2663afaf5a2dSDavid Somayajulu ha->seconds_since_last_heartbeat++; 2664afaf5a2dSDavid Somayajulu if (ha->seconds_since_last_heartbeat > 2665afaf5a2dSDavid Somayajulu ha->heartbeat_interval + 2) 2666afaf5a2dSDavid Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 2667afaf5a2dSDavid Somayajulu } 2668f4f5df23SVikas Chaudhary } 2669afaf5a2dSDavid Somayajulu 2670ff884430SVikas Chaudhary /* Process any deferred work. */ 2671ff884430SVikas Chaudhary if (!list_empty(&ha->work_list)) 2672ff884430SVikas Chaudhary start_dpc++; 2673ff884430SVikas Chaudhary 2674afaf5a2dSDavid Somayajulu /* Wakeup the dpc routine for this adapter, if needed. */ 26751b46807eSLalit Chandivade if (start_dpc || 2676afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2677afaf5a2dSDavid Somayajulu test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 2678afaf5a2dSDavid Somayajulu test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 2679f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2680afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2681afaf5a2dSDavid Somayajulu test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 2682065aa1b4SVikas Chaudhary test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 2683f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 2684f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 26851b46807eSLalit Chandivade test_bit(DPC_AEN, &ha->dpc_flags)) { 2686afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 2687afaf5a2dSDavid Somayajulu " - dpc flags = 0x%lx\n", 2688afaf5a2dSDavid Somayajulu ha->host_no, __func__, ha->dpc_flags)); 2689f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 2690afaf5a2dSDavid Somayajulu } 2691afaf5a2dSDavid Somayajulu 2692afaf5a2dSDavid Somayajulu /* Reschedule timer thread to call us back in one second */ 2693afaf5a2dSDavid Somayajulu mod_timer(&ha->timer, jiffies + HZ); 2694afaf5a2dSDavid Somayajulu 2695afaf5a2dSDavid Somayajulu DEBUG2(ha->seconds_since_last_intr++); 2696afaf5a2dSDavid Somayajulu } 2697afaf5a2dSDavid Somayajulu 2698afaf5a2dSDavid Somayajulu /** 2699afaf5a2dSDavid Somayajulu * qla4xxx_cmd_wait - waits for all outstanding commands to complete 2700afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2701afaf5a2dSDavid Somayajulu * 2702afaf5a2dSDavid Somayajulu * This routine stalls the driver until all outstanding commands are returned. 2703afaf5a2dSDavid Somayajulu * Caller must release the Hardware Lock prior to calling this routine. 2704afaf5a2dSDavid Somayajulu **/ 2705afaf5a2dSDavid Somayajulu static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 2706afaf5a2dSDavid Somayajulu { 2707afaf5a2dSDavid Somayajulu uint32_t index = 0; 2708afaf5a2dSDavid Somayajulu unsigned long flags; 2709afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 2710afaf5a2dSDavid Somayajulu 2711f4f5df23SVikas Chaudhary unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 2712f4f5df23SVikas Chaudhary 2713f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 2714f4f5df23SVikas Chaudhary "complete\n", WAIT_CMD_TOV)); 2715f4f5df23SVikas Chaudhary 2716f4f5df23SVikas Chaudhary while (!time_after_eq(jiffies, wtime)) { 2717afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2718afaf5a2dSDavid Somayajulu /* Find a command that hasn't completed. */ 2719afaf5a2dSDavid Somayajulu for (index = 0; index < ha->host->can_queue; index++) { 2720afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, index); 2721a1e0063dSMike Christie /* 2722a1e0063dSMike Christie * We cannot just check if the index is valid, 2723a1e0063dSMike Christie * becase if we are run from the scsi eh, then 2724a1e0063dSMike Christie * the scsi/block layer is going to prevent 2725a1e0063dSMike Christie * the tag from being released. 2726a1e0063dSMike Christie */ 2727a1e0063dSMike Christie if (cmd != NULL && CMD_SP(cmd)) 2728afaf5a2dSDavid Somayajulu break; 2729afaf5a2dSDavid Somayajulu } 2730afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2731afaf5a2dSDavid Somayajulu 2732afaf5a2dSDavid Somayajulu /* If No Commands are pending, wait is complete */ 2733f4f5df23SVikas Chaudhary if (index == ha->host->can_queue) 2734f4f5df23SVikas Chaudhary return QLA_SUCCESS; 2735afaf5a2dSDavid Somayajulu 2736afaf5a2dSDavid Somayajulu msleep(1000); 2737afaf5a2dSDavid Somayajulu } 2738f4f5df23SVikas Chaudhary /* If we timed out on waiting for commands to come back 2739f4f5df23SVikas Chaudhary * return ERROR. */ 2740f4f5df23SVikas Chaudhary return QLA_ERROR; 2741afaf5a2dSDavid Somayajulu } 2742afaf5a2dSDavid Somayajulu 2743f4f5df23SVikas Chaudhary int qla4xxx_hw_reset(struct scsi_qla_host *ha) 2744afaf5a2dSDavid Somayajulu { 2745afaf5a2dSDavid Somayajulu uint32_t ctrl_status; 2746477ffb9dSDavid C Somayajulu unsigned long flags = 0; 2747477ffb9dSDavid C Somayajulu 2748477ffb9dSDavid C Somayajulu DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 2749afaf5a2dSDavid Somayajulu 2750f4f5df23SVikas Chaudhary if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 2751f4f5df23SVikas Chaudhary return QLA_ERROR; 2752f4f5df23SVikas Chaudhary 2753afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2754afaf5a2dSDavid Somayajulu 2755afaf5a2dSDavid Somayajulu /* 2756afaf5a2dSDavid Somayajulu * If the SCSI Reset Interrupt bit is set, clear it. 2757afaf5a2dSDavid Somayajulu * Otherwise, the Soft Reset won't work. 2758afaf5a2dSDavid Somayajulu */ 2759afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2760afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 2761afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2762afaf5a2dSDavid Somayajulu 2763afaf5a2dSDavid Somayajulu /* Issue Soft Reset */ 2764afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 2765afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2766afaf5a2dSDavid Somayajulu 2767afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2768f4f5df23SVikas Chaudhary return QLA_SUCCESS; 2769477ffb9dSDavid C Somayajulu } 2770477ffb9dSDavid C Somayajulu 2771477ffb9dSDavid C Somayajulu /** 2772477ffb9dSDavid C Somayajulu * qla4xxx_soft_reset - performs soft reset. 2773477ffb9dSDavid C Somayajulu * @ha: Pointer to host adapter structure. 2774477ffb9dSDavid C Somayajulu **/ 2775477ffb9dSDavid C Somayajulu int qla4xxx_soft_reset(struct scsi_qla_host *ha) 2776477ffb9dSDavid C Somayajulu { 2777477ffb9dSDavid C Somayajulu uint32_t max_wait_time; 2778477ffb9dSDavid C Somayajulu unsigned long flags = 0; 2779f931c534SVikas Chaudhary int status; 2780477ffb9dSDavid C Somayajulu uint32_t ctrl_status; 2781477ffb9dSDavid C Somayajulu 2782f931c534SVikas Chaudhary status = qla4xxx_hw_reset(ha); 2783f931c534SVikas Chaudhary if (status != QLA_SUCCESS) 2784f931c534SVikas Chaudhary return status; 2785afaf5a2dSDavid Somayajulu 2786f931c534SVikas Chaudhary status = QLA_ERROR; 2787afaf5a2dSDavid Somayajulu /* Wait until the Network Reset Intr bit is cleared */ 2788afaf5a2dSDavid Somayajulu max_wait_time = RESET_INTR_TOV; 2789afaf5a2dSDavid Somayajulu do { 2790afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2791afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2792afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2793afaf5a2dSDavid Somayajulu 2794afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 2795afaf5a2dSDavid Somayajulu break; 2796afaf5a2dSDavid Somayajulu 2797afaf5a2dSDavid Somayajulu msleep(1000); 2798afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2799afaf5a2dSDavid Somayajulu 2800afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 2801afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_WARNING 2802afaf5a2dSDavid Somayajulu "scsi%ld: Network Reset Intr not cleared by " 2803afaf5a2dSDavid Somayajulu "Network function, clearing it now!\n", 2804afaf5a2dSDavid Somayajulu ha->host_no)); 2805afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2806afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 2807afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2808afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2809afaf5a2dSDavid Somayajulu } 2810afaf5a2dSDavid Somayajulu 2811afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 2812afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 2813afaf5a2dSDavid Somayajulu do { 2814afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2815afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2816afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2817afaf5a2dSDavid Somayajulu 2818afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SOFT_RESET) == 0) { 2819afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 2820afaf5a2dSDavid Somayajulu break; 2821afaf5a2dSDavid Somayajulu } 2822afaf5a2dSDavid Somayajulu 2823afaf5a2dSDavid Somayajulu msleep(1000); 2824afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2825afaf5a2dSDavid Somayajulu 2826afaf5a2dSDavid Somayajulu /* 2827afaf5a2dSDavid Somayajulu * Also, make sure that the SCSI Reset Interrupt bit has been cleared 2828afaf5a2dSDavid Somayajulu * after the soft reset has taken place. 2829afaf5a2dSDavid Somayajulu */ 2830afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2831afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2832afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 2833afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2834afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2835afaf5a2dSDavid Somayajulu } 2836afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2837afaf5a2dSDavid Somayajulu 2838afaf5a2dSDavid Somayajulu /* If soft reset fails then most probably the bios on other 2839afaf5a2dSDavid Somayajulu * function is also enabled. 2840afaf5a2dSDavid Somayajulu * Since the initialization is sequential the other fn 2841afaf5a2dSDavid Somayajulu * wont be able to acknowledge the soft reset. 2842afaf5a2dSDavid Somayajulu * Issue a force soft reset to workaround this scenario. 2843afaf5a2dSDavid Somayajulu */ 2844afaf5a2dSDavid Somayajulu if (max_wait_time == 0) { 2845afaf5a2dSDavid Somayajulu /* Issue Force Soft Reset */ 2846afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2847afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 2848afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2849afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2850afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 2851afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 2852afaf5a2dSDavid Somayajulu do { 2853afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2854afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2855afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2856afaf5a2dSDavid Somayajulu 2857afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 2858afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 2859afaf5a2dSDavid Somayajulu break; 2860afaf5a2dSDavid Somayajulu } 2861afaf5a2dSDavid Somayajulu 2862afaf5a2dSDavid Somayajulu msleep(1000); 2863afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2864afaf5a2dSDavid Somayajulu } 2865afaf5a2dSDavid Somayajulu 2866afaf5a2dSDavid Somayajulu return status; 2867afaf5a2dSDavid Somayajulu } 2868afaf5a2dSDavid Somayajulu 2869afaf5a2dSDavid Somayajulu /** 2870f4f5df23SVikas Chaudhary * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 2871afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2872f4f5df23SVikas Chaudhary * @res: returned scsi status 2873afaf5a2dSDavid Somayajulu * 2874afaf5a2dSDavid Somayajulu * This routine is called just prior to a HARD RESET to return all 2875afaf5a2dSDavid Somayajulu * outstanding commands back to the Operating System. 2876afaf5a2dSDavid Somayajulu * Caller should make sure that the following locks are released 2877afaf5a2dSDavid Somayajulu * before this calling routine: Hardware lock, and io_request_lock. 2878afaf5a2dSDavid Somayajulu **/ 2879f4f5df23SVikas Chaudhary static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 2880afaf5a2dSDavid Somayajulu { 2881afaf5a2dSDavid Somayajulu struct srb *srb; 2882afaf5a2dSDavid Somayajulu int i; 2883afaf5a2dSDavid Somayajulu unsigned long flags; 2884afaf5a2dSDavid Somayajulu 2885afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2886afaf5a2dSDavid Somayajulu for (i = 0; i < ha->host->can_queue; i++) { 2887afaf5a2dSDavid Somayajulu srb = qla4xxx_del_from_active_array(ha, i); 2888afaf5a2dSDavid Somayajulu if (srb != NULL) { 2889f4f5df23SVikas Chaudhary srb->cmd->result = res; 289009a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 2891afaf5a2dSDavid Somayajulu } 2892afaf5a2dSDavid Somayajulu } 2893afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2894afaf5a2dSDavid Somayajulu } 2895afaf5a2dSDavid Somayajulu 2896f4f5df23SVikas Chaudhary void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 2897f4f5df23SVikas Chaudhary { 2898f4f5df23SVikas Chaudhary clear_bit(AF_ONLINE, &ha->flags); 2899f4f5df23SVikas Chaudhary 2900f4f5df23SVikas Chaudhary /* Disable the board */ 2901f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 2902f4f5df23SVikas Chaudhary 2903f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 2904f4f5df23SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2905f4f5df23SVikas Chaudhary clear_bit(AF_INIT_DONE, &ha->flags); 2906f4f5df23SVikas Chaudhary } 2907f4f5df23SVikas Chaudhary 2908b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 2909b3a271a9SManish Rangankar { 2910b3a271a9SManish Rangankar struct iscsi_session *sess; 2911b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2912b3a271a9SManish Rangankar 2913b3a271a9SManish Rangankar sess = cls_session->dd_data; 2914b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2915b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 291613483730SMike Christie 291713483730SMike Christie if (ddb_entry->ddb_type == FLASH_DDB) 291813483730SMike Christie iscsi_block_session(ddb_entry->sess); 291913483730SMike Christie else 292013483730SMike Christie iscsi_session_failure(cls_session->dd_data, 292113483730SMike Christie ISCSI_ERR_CONN_FAILED); 2922b3a271a9SManish Rangankar } 2923b3a271a9SManish Rangankar 2924afaf5a2dSDavid Somayajulu /** 2925afaf5a2dSDavid Somayajulu * qla4xxx_recover_adapter - recovers adapter after a fatal error 2926afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2927afaf5a2dSDavid Somayajulu **/ 2928f4f5df23SVikas Chaudhary static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 2929afaf5a2dSDavid Somayajulu { 2930f4f5df23SVikas Chaudhary int status = QLA_ERROR; 2931f4f5df23SVikas Chaudhary uint8_t reset_chip = 0; 29328e0f3a66SSarang Radke uint32_t dev_state; 29339ee91a38SShyam Sunder unsigned long wait; 2934afaf5a2dSDavid Somayajulu 2935afaf5a2dSDavid Somayajulu /* Stall incoming I/O until we are done */ 2936f4f5df23SVikas Chaudhary scsi_block_requests(ha->host); 2937afaf5a2dSDavid Somayajulu clear_bit(AF_ONLINE, &ha->flags); 2938b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 293950a29aecSMike Christie 2940f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 2941afaf5a2dSDavid Somayajulu 2942f4f5df23SVikas Chaudhary set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2943afaf5a2dSDavid Somayajulu 2944b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 2945b3a271a9SManish Rangankar 2946f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2947f4f5df23SVikas Chaudhary reset_chip = 1; 2948afaf5a2dSDavid Somayajulu 2949f4f5df23SVikas Chaudhary /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 2950f4f5df23SVikas Chaudhary * do not reset adapter, jump to initialize_adapter */ 2951f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2952f4f5df23SVikas Chaudhary status = QLA_SUCCESS; 2953f4f5df23SVikas Chaudhary goto recover_ha_init_adapter; 2954afaf5a2dSDavid Somayajulu } 2955afaf5a2dSDavid Somayajulu 2956f4f5df23SVikas Chaudhary /* For the ISP-82xx adapter, issue a stop_firmware if invoked 2957f4f5df23SVikas Chaudhary * from eh_host_reset or ioctl module */ 2958f4f5df23SVikas Chaudhary if (is_qla8022(ha) && !reset_chip && 2959f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2960f4f5df23SVikas Chaudhary 2961f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2962f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing stop_firmware...\n", 2963f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2964f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_firmware(ha); 2965f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 29662bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2967f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2968f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2969f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2970f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2971f4f5df23SVikas Chaudhary } else { 2972f4f5df23SVikas Chaudhary /* If the stop_firmware fails then 2973f4f5df23SVikas Chaudhary * reset the entire chip */ 2974f4f5df23SVikas Chaudhary reset_chip = 1; 2975f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2976f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2977f4f5df23SVikas Chaudhary } 2978f4f5df23SVikas Chaudhary } 2979f4f5df23SVikas Chaudhary 2980f4f5df23SVikas Chaudhary /* Issue full chip reset if recovering from a catastrophic error, 2981f4f5df23SVikas Chaudhary * or if stop_firmware fails for ISP-82xx. 2982f4f5df23SVikas Chaudhary * This is the default case for ISP-4xxx */ 2983f4f5df23SVikas Chaudhary if (!is_qla8022(ha) || reset_chip) { 29849ee91a38SShyam Sunder if (!is_qla8022(ha)) 29859ee91a38SShyam Sunder goto chip_reset; 29869ee91a38SShyam Sunder 29879ee91a38SShyam Sunder /* Check if 82XX firmware is alive or not 29889ee91a38SShyam Sunder * We may have arrived here from NEED_RESET 29899ee91a38SShyam Sunder * detection only */ 29909ee91a38SShyam Sunder if (test_bit(AF_FW_RECOVERY, &ha->flags)) 29919ee91a38SShyam Sunder goto chip_reset; 29929ee91a38SShyam Sunder 29939ee91a38SShyam Sunder wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 29949ee91a38SShyam Sunder while (time_before(jiffies, wait)) { 29959ee91a38SShyam Sunder if (qla4_8xxx_check_fw_alive(ha)) { 29969ee91a38SShyam Sunder qla4xxx_mailbox_premature_completion(ha); 29979ee91a38SShyam Sunder break; 29989ee91a38SShyam Sunder } 29999ee91a38SShyam Sunder 30009ee91a38SShyam Sunder set_current_state(TASK_UNINTERRUPTIBLE); 30019ee91a38SShyam Sunder schedule_timeout(HZ); 30029ee91a38SShyam Sunder } 3003da106212SVikas Chaudhary chip_reset: 30042bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 3005f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 3006da106212SVikas Chaudhary 3007f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3008f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3009f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 3010f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing chip reset..\n", 3011f4f5df23SVikas Chaudhary ha->host_no, __func__)); 3012f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_chip(ha); 3013f4f5df23SVikas Chaudhary } 3014f4f5df23SVikas Chaudhary 3015f4f5df23SVikas Chaudhary /* Flush any pending ddb changed AENs */ 3016f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3017f4f5df23SVikas Chaudhary 3018f4f5df23SVikas Chaudhary recover_ha_init_adapter: 3019f4f5df23SVikas Chaudhary /* Upon successful firmware/chip reset, re-initialize the adapter */ 3020f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 3021f4f5df23SVikas Chaudhary /* For ISP-4xxx, force function 1 to always initialize 3022f4f5df23SVikas Chaudhary * before function 3 to prevent both funcions from 3023f4f5df23SVikas Chaudhary * stepping on top of the other */ 3024f4f5df23SVikas Chaudhary if (!is_qla8022(ha) && (ha->mac_index == 3)) 3025f4f5df23SVikas Chaudhary ssleep(6); 3026f4f5df23SVikas Chaudhary 3027f4f5df23SVikas Chaudhary /* NOTE: AF_ONLINE flag set upon successful completion of 3028f4f5df23SVikas Chaudhary * qla4xxx_initialize_adapter */ 302913483730SMike Christie status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 3030f4f5df23SVikas Chaudhary } 3031f4f5df23SVikas Chaudhary 3032f4f5df23SVikas Chaudhary /* Retry failed adapter initialization, if necessary 3033f4f5df23SVikas Chaudhary * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 3034f4f5df23SVikas Chaudhary * case to prevent ping-pong resets between functions */ 3035f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags) && 3036f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3037afaf5a2dSDavid Somayajulu /* Adapter initialization failed, see if we can retry 3038f4f5df23SVikas Chaudhary * resetting the ha. 3039f4f5df23SVikas Chaudhary * Since we don't want to block the DPC for too long 3040f4f5df23SVikas Chaudhary * with multiple resets in the same thread, 3041f4f5df23SVikas Chaudhary * utilize DPC to retry */ 30428e0f3a66SSarang Radke if (is_qla8022(ha)) { 3043f8086f4fSVikas Chaudhary qla4_82xx_idc_lock(ha); 3044f8086f4fSVikas Chaudhary dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3045f8086f4fSVikas Chaudhary qla4_82xx_idc_unlock(ha); 3046de8c72daSVikas Chaudhary if (dev_state == QLA8XXX_DEV_FAILED) { 30478e0f3a66SSarang Radke ql4_printk(KERN_INFO, ha, "%s: don't retry " 30488e0f3a66SSarang Radke "recover adapter. H/W is in Failed " 30498e0f3a66SSarang Radke "state\n", __func__); 30508e0f3a66SSarang Radke qla4xxx_dead_adapter_cleanup(ha); 30518e0f3a66SSarang Radke clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 30528e0f3a66SSarang Radke clear_bit(DPC_RESET_HA, &ha->dpc_flags); 30538e0f3a66SSarang Radke clear_bit(DPC_RESET_HA_FW_CONTEXT, 30548e0f3a66SSarang Radke &ha->dpc_flags); 30558e0f3a66SSarang Radke status = QLA_ERROR; 30568e0f3a66SSarang Radke 30578e0f3a66SSarang Radke goto exit_recover; 30588e0f3a66SSarang Radke } 30598e0f3a66SSarang Radke } 30608e0f3a66SSarang Radke 3061afaf5a2dSDavid Somayajulu if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 3062afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 3063afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - retrying " 3064afaf5a2dSDavid Somayajulu "(%d) more times\n", ha->host_no, 3065afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 3066afaf5a2dSDavid Somayajulu set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3067afaf5a2dSDavid Somayajulu status = QLA_ERROR; 3068afaf5a2dSDavid Somayajulu } else { 3069afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt > 0) { 3070afaf5a2dSDavid Somayajulu /* Schedule another Reset HA--DPC will retry */ 3071afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt--; 3072afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - " 3073afaf5a2dSDavid Somayajulu "retry remaining %d\n", 3074afaf5a2dSDavid Somayajulu ha->host_no, 3075afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 3076afaf5a2dSDavid Somayajulu status = QLA_ERROR; 3077afaf5a2dSDavid Somayajulu } 3078afaf5a2dSDavid Somayajulu 3079afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt == 0) { 3080afaf5a2dSDavid Somayajulu /* Recover adapter retries have been exhausted. 3081afaf5a2dSDavid Somayajulu * Adapter DEAD */ 3082afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter " 3083afaf5a2dSDavid Somayajulu "failed - board disabled\n", 3084afaf5a2dSDavid Somayajulu ha->host_no)); 3085f4f5df23SVikas Chaudhary qla4xxx_dead_adapter_cleanup(ha); 3086afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3087afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3088f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, 3089afaf5a2dSDavid Somayajulu &ha->dpc_flags); 3090afaf5a2dSDavid Somayajulu status = QLA_ERROR; 3091afaf5a2dSDavid Somayajulu } 3092afaf5a2dSDavid Somayajulu } 3093afaf5a2dSDavid Somayajulu } else { 3094afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3095f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3096afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3097afaf5a2dSDavid Somayajulu } 3098afaf5a2dSDavid Somayajulu 30998e0f3a66SSarang Radke exit_recover: 3100afaf5a2dSDavid Somayajulu ha->adapter_error_count++; 3101afaf5a2dSDavid Somayajulu 3102f4f5df23SVikas Chaudhary if (test_bit(AF_ONLINE, &ha->flags)) 3103f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 3104afaf5a2dSDavid Somayajulu 3105f4f5df23SVikas Chaudhary scsi_unblock_requests(ha->host); 3106f4f5df23SVikas Chaudhary 3107f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 3108f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 310925985edcSLucas De Marchi status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 3110f4f5df23SVikas Chaudhary 3111afaf5a2dSDavid Somayajulu return status; 3112afaf5a2dSDavid Somayajulu } 3113afaf5a2dSDavid Somayajulu 3114b3a271a9SManish Rangankar static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 3115b3a271a9SManish Rangankar { 3116b3a271a9SManish Rangankar struct iscsi_session *sess; 3117b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 3118b3a271a9SManish Rangankar struct scsi_qla_host *ha; 3119b3a271a9SManish Rangankar 3120b3a271a9SManish Rangankar sess = cls_session->dd_data; 3121b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 3122b3a271a9SManish Rangankar ha = ddb_entry->ha; 3123b3a271a9SManish Rangankar if (!iscsi_is_session_online(cls_session)) { 3124b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 3125b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3126b3a271a9SManish Rangankar " unblock session\n", ha->host_no, __func__, 3127b3a271a9SManish Rangankar ddb_entry->fw_ddb_index); 3128b3a271a9SManish Rangankar iscsi_unblock_session(ddb_entry->sess); 3129b3a271a9SManish Rangankar } else { 3130b3a271a9SManish Rangankar /* Trigger relogin */ 313113483730SMike Christie if (ddb_entry->ddb_type == FLASH_DDB) { 313213483730SMike Christie if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 313313483730SMike Christie qla4xxx_arm_relogin_timer(ddb_entry); 313413483730SMike Christie } else 3135b3a271a9SManish Rangankar iscsi_session_failure(cls_session->dd_data, 3136b3a271a9SManish Rangankar ISCSI_ERR_CONN_FAILED); 3137b3a271a9SManish Rangankar } 3138b3a271a9SManish Rangankar } 3139b3a271a9SManish Rangankar } 3140b3a271a9SManish Rangankar 314113483730SMike Christie int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 314213483730SMike Christie { 314313483730SMike Christie struct iscsi_session *sess; 314413483730SMike Christie struct ddb_entry *ddb_entry; 314513483730SMike Christie struct scsi_qla_host *ha; 314613483730SMike Christie 314713483730SMike Christie sess = cls_session->dd_data; 314813483730SMike Christie ddb_entry = sess->dd_data; 314913483730SMike Christie ha = ddb_entry->ha; 315013483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 315113483730SMike Christie " unblock session\n", ha->host_no, __func__, 315213483730SMike Christie ddb_entry->fw_ddb_index); 315313483730SMike Christie 315413483730SMike Christie iscsi_unblock_session(ddb_entry->sess); 315513483730SMike Christie 315613483730SMike Christie /* Start scan target */ 315713483730SMike Christie if (test_bit(AF_ONLINE, &ha->flags)) { 315813483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 315913483730SMike Christie " start scan\n", ha->host_no, __func__, 316013483730SMike Christie ddb_entry->fw_ddb_index); 316113483730SMike Christie scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 316213483730SMike Christie } 316313483730SMike Christie return QLA_SUCCESS; 316413483730SMike Christie } 316513483730SMike Christie 316613483730SMike Christie int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 316713483730SMike Christie { 316813483730SMike Christie struct iscsi_session *sess; 316913483730SMike Christie struct ddb_entry *ddb_entry; 317013483730SMike Christie struct scsi_qla_host *ha; 317180c53e64SManish Rangankar int status = QLA_SUCCESS; 317213483730SMike Christie 317313483730SMike Christie sess = cls_session->dd_data; 317413483730SMike Christie ddb_entry = sess->dd_data; 317513483730SMike Christie ha = ddb_entry->ha; 317613483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 317713483730SMike Christie " unblock user space session\n", ha->host_no, __func__, 317813483730SMike Christie ddb_entry->fw_ddb_index); 317980c53e64SManish Rangankar 318080c53e64SManish Rangankar if (!iscsi_is_session_online(cls_session)) { 318113483730SMike Christie iscsi_conn_start(ddb_entry->conn); 318213483730SMike Christie iscsi_conn_login_event(ddb_entry->conn, 318313483730SMike Christie ISCSI_CONN_STATE_LOGGED_IN); 318480c53e64SManish Rangankar } else { 318580c53e64SManish Rangankar ql4_printk(KERN_INFO, ha, 318680c53e64SManish Rangankar "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 318780c53e64SManish Rangankar ha->host_no, __func__, ddb_entry->fw_ddb_index, 318880c53e64SManish Rangankar cls_session->sid); 318980c53e64SManish Rangankar status = QLA_ERROR; 319080c53e64SManish Rangankar } 319113483730SMike Christie 319280c53e64SManish Rangankar return status; 319313483730SMike Christie } 319413483730SMike Christie 31952d7924e6SVikas Chaudhary static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 31962d7924e6SVikas Chaudhary { 3197b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 31982d7924e6SVikas Chaudhary } 31992d7924e6SVikas Chaudhary 320013483730SMike Christie static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 320113483730SMike Christie { 320213483730SMike Christie uint16_t relogin_timer; 320313483730SMike Christie struct iscsi_session *sess; 320413483730SMike Christie struct ddb_entry *ddb_entry; 320513483730SMike Christie struct scsi_qla_host *ha; 320613483730SMike Christie 320713483730SMike Christie sess = cls_sess->dd_data; 320813483730SMike Christie ddb_entry = sess->dd_data; 320913483730SMike Christie ha = ddb_entry->ha; 321013483730SMike Christie 321113483730SMike Christie relogin_timer = max(ddb_entry->default_relogin_timeout, 321213483730SMike Christie (uint16_t)RELOGIN_TOV); 321313483730SMike Christie atomic_set(&ddb_entry->relogin_timer, relogin_timer); 321413483730SMike Christie 321513483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 321613483730SMike Christie "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 321713483730SMike Christie ddb_entry->fw_ddb_index, relogin_timer)); 321813483730SMike Christie 321913483730SMike Christie qla4xxx_login_flash_ddb(cls_sess); 322013483730SMike Christie } 322113483730SMike Christie 322213483730SMike Christie static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 322313483730SMike Christie { 322413483730SMike Christie struct iscsi_session *sess; 322513483730SMike Christie struct ddb_entry *ddb_entry; 322613483730SMike Christie struct scsi_qla_host *ha; 322713483730SMike Christie 322813483730SMike Christie sess = cls_sess->dd_data; 322913483730SMike Christie ddb_entry = sess->dd_data; 323013483730SMike Christie ha = ddb_entry->ha; 323113483730SMike Christie 323213483730SMike Christie if (!(ddb_entry->ddb_type == FLASH_DDB)) 323313483730SMike Christie return; 323413483730SMike Christie 323513483730SMike Christie if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 323613483730SMike Christie !iscsi_is_session_online(cls_sess)) { 323713483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 323813483730SMike Christie "relogin issued\n")); 323913483730SMike Christie qla4xxx_relogin_flash_ddb(cls_sess); 324013483730SMike Christie } 324113483730SMike Christie } 324213483730SMike Christie 3243f4f5df23SVikas Chaudhary void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 3244f4f5df23SVikas Chaudhary { 32451b46807eSLalit Chandivade if (ha->dpc_thread) 3246f4f5df23SVikas Chaudhary queue_work(ha->dpc_thread, &ha->dpc_work); 3247f4f5df23SVikas Chaudhary } 3248f4f5df23SVikas Chaudhary 3249ff884430SVikas Chaudhary static struct qla4_work_evt * 3250ff884430SVikas Chaudhary qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 3251ff884430SVikas Chaudhary enum qla4_work_type type) 3252ff884430SVikas Chaudhary { 3253ff884430SVikas Chaudhary struct qla4_work_evt *e; 3254ff884430SVikas Chaudhary uint32_t size = sizeof(struct qla4_work_evt) + data_size; 3255ff884430SVikas Chaudhary 3256ff884430SVikas Chaudhary e = kzalloc(size, GFP_ATOMIC); 3257ff884430SVikas Chaudhary if (!e) 3258ff884430SVikas Chaudhary return NULL; 3259ff884430SVikas Chaudhary 3260ff884430SVikas Chaudhary INIT_LIST_HEAD(&e->list); 3261ff884430SVikas Chaudhary e->type = type; 3262ff884430SVikas Chaudhary return e; 3263ff884430SVikas Chaudhary } 3264ff884430SVikas Chaudhary 3265ff884430SVikas Chaudhary static void qla4xxx_post_work(struct scsi_qla_host *ha, 3266ff884430SVikas Chaudhary struct qla4_work_evt *e) 3267ff884430SVikas Chaudhary { 3268ff884430SVikas Chaudhary unsigned long flags; 3269ff884430SVikas Chaudhary 3270ff884430SVikas Chaudhary spin_lock_irqsave(&ha->work_lock, flags); 3271ff884430SVikas Chaudhary list_add_tail(&e->list, &ha->work_list); 3272ff884430SVikas Chaudhary spin_unlock_irqrestore(&ha->work_lock, flags); 3273ff884430SVikas Chaudhary qla4xxx_wake_dpc(ha); 3274ff884430SVikas Chaudhary } 3275ff884430SVikas Chaudhary 3276ff884430SVikas Chaudhary int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 3277ff884430SVikas Chaudhary enum iscsi_host_event_code aen_code, 3278ff884430SVikas Chaudhary uint32_t data_size, uint8_t *data) 3279ff884430SVikas Chaudhary { 3280ff884430SVikas Chaudhary struct qla4_work_evt *e; 3281ff884430SVikas Chaudhary 3282ff884430SVikas Chaudhary e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 3283ff884430SVikas Chaudhary if (!e) 3284ff884430SVikas Chaudhary return QLA_ERROR; 3285ff884430SVikas Chaudhary 3286ff884430SVikas Chaudhary e->u.aen.code = aen_code; 3287ff884430SVikas Chaudhary e->u.aen.data_size = data_size; 3288ff884430SVikas Chaudhary memcpy(e->u.aen.data, data, data_size); 3289ff884430SVikas Chaudhary 3290ff884430SVikas Chaudhary qla4xxx_post_work(ha, e); 3291ff884430SVikas Chaudhary 3292ff884430SVikas Chaudhary return QLA_SUCCESS; 3293ff884430SVikas Chaudhary } 3294ff884430SVikas Chaudhary 3295c0b9d3f7SVikas Chaudhary int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 3296c0b9d3f7SVikas Chaudhary uint32_t status, uint32_t pid, 3297c0b9d3f7SVikas Chaudhary uint32_t data_size, uint8_t *data) 3298c0b9d3f7SVikas Chaudhary { 3299c0b9d3f7SVikas Chaudhary struct qla4_work_evt *e; 3300c0b9d3f7SVikas Chaudhary 3301c0b9d3f7SVikas Chaudhary e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 3302c0b9d3f7SVikas Chaudhary if (!e) 3303c0b9d3f7SVikas Chaudhary return QLA_ERROR; 3304c0b9d3f7SVikas Chaudhary 3305c0b9d3f7SVikas Chaudhary e->u.ping.status = status; 3306c0b9d3f7SVikas Chaudhary e->u.ping.pid = pid; 3307c0b9d3f7SVikas Chaudhary e->u.ping.data_size = data_size; 3308c0b9d3f7SVikas Chaudhary memcpy(e->u.ping.data, data, data_size); 3309c0b9d3f7SVikas Chaudhary 3310c0b9d3f7SVikas Chaudhary qla4xxx_post_work(ha, e); 3311c0b9d3f7SVikas Chaudhary 3312c0b9d3f7SVikas Chaudhary return QLA_SUCCESS; 3313c0b9d3f7SVikas Chaudhary } 3314c0b9d3f7SVikas Chaudhary 3315a7380a65SVikas Chaudhary static void qla4xxx_do_work(struct scsi_qla_host *ha) 3316ff884430SVikas Chaudhary { 3317ff884430SVikas Chaudhary struct qla4_work_evt *e, *tmp; 3318ff884430SVikas Chaudhary unsigned long flags; 3319ff884430SVikas Chaudhary LIST_HEAD(work); 3320ff884430SVikas Chaudhary 3321ff884430SVikas Chaudhary spin_lock_irqsave(&ha->work_lock, flags); 3322ff884430SVikas Chaudhary list_splice_init(&ha->work_list, &work); 3323ff884430SVikas Chaudhary spin_unlock_irqrestore(&ha->work_lock, flags); 3324ff884430SVikas Chaudhary 3325ff884430SVikas Chaudhary list_for_each_entry_safe(e, tmp, &work, list) { 3326ff884430SVikas Chaudhary list_del_init(&e->list); 3327ff884430SVikas Chaudhary 3328ff884430SVikas Chaudhary switch (e->type) { 3329ff884430SVikas Chaudhary case QLA4_EVENT_AEN: 3330ff884430SVikas Chaudhary iscsi_post_host_event(ha->host_no, 3331ff884430SVikas Chaudhary &qla4xxx_iscsi_transport, 3332ff884430SVikas Chaudhary e->u.aen.code, 3333ff884430SVikas Chaudhary e->u.aen.data_size, 3334ff884430SVikas Chaudhary e->u.aen.data); 3335ff884430SVikas Chaudhary break; 3336c0b9d3f7SVikas Chaudhary case QLA4_EVENT_PING_STATUS: 3337c0b9d3f7SVikas Chaudhary iscsi_ping_comp_event(ha->host_no, 3338c0b9d3f7SVikas Chaudhary &qla4xxx_iscsi_transport, 3339c0b9d3f7SVikas Chaudhary e->u.ping.status, 3340c0b9d3f7SVikas Chaudhary e->u.ping.pid, 3341c0b9d3f7SVikas Chaudhary e->u.ping.data_size, 3342c0b9d3f7SVikas Chaudhary e->u.ping.data); 3343c0b9d3f7SVikas Chaudhary break; 3344ff884430SVikas Chaudhary default: 3345ff884430SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 3346ff884430SVikas Chaudhary "supported", e->type); 3347ff884430SVikas Chaudhary } 3348ff884430SVikas Chaudhary kfree(e); 3349ff884430SVikas Chaudhary } 3350ff884430SVikas Chaudhary } 3351ff884430SVikas Chaudhary 3352afaf5a2dSDavid Somayajulu /** 3353afaf5a2dSDavid Somayajulu * qla4xxx_do_dpc - dpc routine 3354afaf5a2dSDavid Somayajulu * @data: in our case pointer to adapter structure 3355afaf5a2dSDavid Somayajulu * 3356afaf5a2dSDavid Somayajulu * This routine is a task that is schedule by the interrupt handler 3357afaf5a2dSDavid Somayajulu * to perform the background processing for interrupts. We put it 3358afaf5a2dSDavid Somayajulu * on a task queue that is consumed whenever the scheduler runs; that's 3359afaf5a2dSDavid Somayajulu * so you can do anything (i.e. put the process to sleep etc). In fact, 3360afaf5a2dSDavid Somayajulu * the mid-level tries to sleep when it reaches the driver threshold 3361afaf5a2dSDavid Somayajulu * "host->can_queue". This can cause a panic if we were in our interrupt code. 3362afaf5a2dSDavid Somayajulu **/ 3363c4028958SDavid Howells static void qla4xxx_do_dpc(struct work_struct *work) 3364afaf5a2dSDavid Somayajulu { 3365c4028958SDavid Howells struct scsi_qla_host *ha = 3366c4028958SDavid Howells container_of(work, struct scsi_qla_host, dpc_work); 3367477ffb9dSDavid C Somayajulu int status = QLA_ERROR; 3368afaf5a2dSDavid Somayajulu 3369f26b9044SDavid C Somayajulu DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 3370f4f5df23SVikas Chaudhary "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 3371f4f5df23SVikas Chaudhary ha->host_no, __func__, ha->flags, ha->dpc_flags)) 3372afaf5a2dSDavid Somayajulu 3373afaf5a2dSDavid Somayajulu /* Initialization not yet finished. Don't do anything yet. */ 3374afaf5a2dSDavid Somayajulu if (!test_bit(AF_INIT_DONE, &ha->flags)) 33751b46807eSLalit Chandivade return; 3376afaf5a2dSDavid Somayajulu 33772232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 33782232be0dSLalit Chandivade DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 33792232be0dSLalit Chandivade ha->host_no, __func__, ha->flags)); 33801b46807eSLalit Chandivade return; 33812232be0dSLalit Chandivade } 33822232be0dSLalit Chandivade 3383ff884430SVikas Chaudhary /* post events to application */ 3384ff884430SVikas Chaudhary qla4xxx_do_work(ha); 3385ff884430SVikas Chaudhary 3386f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 3387f4f5df23SVikas Chaudhary if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 3388f8086f4fSVikas Chaudhary qla4_82xx_idc_lock(ha); 3389f8086f4fSVikas Chaudhary qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 3390de8c72daSVikas Chaudhary QLA8XXX_DEV_FAILED); 3391f8086f4fSVikas Chaudhary qla4_82xx_idc_unlock(ha); 3392f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 3393f4f5df23SVikas Chaudhary qla4_8xxx_device_state_handler(ha); 3394f4f5df23SVikas Chaudhary } 3395f4f5df23SVikas Chaudhary if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 3396f4f5df23SVikas Chaudhary qla4_8xxx_need_qsnt_handler(ha); 3397f4f5df23SVikas Chaudhary } 3398f4f5df23SVikas Chaudhary } 3399f4f5df23SVikas Chaudhary 3400f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 3401f4f5df23SVikas Chaudhary (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 3402afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 3403f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 3404f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 3405f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 3406f4f5df23SVikas Chaudhary ha->host_no, __func__)); 3407f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3408f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3409f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3410f4f5df23SVikas Chaudhary goto dpc_post_reset_ha; 3411f4f5df23SVikas Chaudhary } 3412f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 3413f26b9044SDavid C Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags)) 3414f4f5df23SVikas Chaudhary qla4xxx_recover_adapter(ha); 3415afaf5a2dSDavid Somayajulu 3416477ffb9dSDavid C Somayajulu if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3417afaf5a2dSDavid Somayajulu uint8_t wait_time = RESET_INTR_TOV; 3418afaf5a2dSDavid Somayajulu 3419afaf5a2dSDavid Somayajulu while ((readw(&ha->reg->ctrl_status) & 3420afaf5a2dSDavid Somayajulu (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 3421afaf5a2dSDavid Somayajulu if (--wait_time == 0) 3422afaf5a2dSDavid Somayajulu break; 3423afaf5a2dSDavid Somayajulu msleep(1000); 3424afaf5a2dSDavid Somayajulu } 3425afaf5a2dSDavid Somayajulu if (wait_time == 0) 3426afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: SR|FSR " 3427afaf5a2dSDavid Somayajulu "bit not cleared-- resetting\n", 3428afaf5a2dSDavid Somayajulu ha->host_no, __func__)); 3429f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3430477ffb9dSDavid C Somayajulu if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 3431477ffb9dSDavid C Somayajulu qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3432f4f5df23SVikas Chaudhary status = qla4xxx_recover_adapter(ha); 3433477ffb9dSDavid C Somayajulu } 3434477ffb9dSDavid C Somayajulu clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3435477ffb9dSDavid C Somayajulu if (status == QLA_SUCCESS) 3436f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 3437afaf5a2dSDavid Somayajulu } 3438afaf5a2dSDavid Somayajulu } 3439afaf5a2dSDavid Somayajulu 3440f4f5df23SVikas Chaudhary dpc_post_reset_ha: 3441afaf5a2dSDavid Somayajulu /* ---- process AEN? --- */ 3442afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 3443afaf5a2dSDavid Somayajulu qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 3444afaf5a2dSDavid Somayajulu 3445afaf5a2dSDavid Somayajulu /* ---- Get DHCP IP Address? --- */ 3446afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 3447afaf5a2dSDavid Somayajulu qla4xxx_get_dhcp_ip_address(ha); 3448afaf5a2dSDavid Somayajulu 344913483730SMike Christie /* ---- relogin device? --- */ 345013483730SMike Christie if (adapter_up(ha) && 345113483730SMike Christie test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 345213483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 345313483730SMike Christie } 345413483730SMike Christie 3455065aa1b4SVikas Chaudhary /* ---- link change? --- */ 3456065aa1b4SVikas Chaudhary if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 3457065aa1b4SVikas Chaudhary if (!test_bit(AF_LINK_UP, &ha->flags)) { 3458065aa1b4SVikas Chaudhary /* ---- link down? --- */ 34592d7924e6SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 3460065aa1b4SVikas Chaudhary } else { 3461065aa1b4SVikas Chaudhary /* ---- link up? --- * 3462065aa1b4SVikas Chaudhary * F/W will auto login to all devices ONLY ONCE after 3463065aa1b4SVikas Chaudhary * link up during driver initialization and runtime 3464065aa1b4SVikas Chaudhary * fatal error recovery. Therefore, the driver must 3465065aa1b4SVikas Chaudhary * manually relogin to devices when recovering from 3466065aa1b4SVikas Chaudhary * connection failures, logouts, expired KATO, etc. */ 346713483730SMike Christie if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 346813483730SMike Christie qla4xxx_build_ddb_list(ha, ha->is_reset); 346913483730SMike Christie iscsi_host_for_each_session(ha->host, 347013483730SMike Christie qla4xxx_login_flash_ddb); 347113483730SMike Christie } else 34722d7924e6SVikas Chaudhary qla4xxx_relogin_all_devices(ha); 3473065aa1b4SVikas Chaudhary } 3474065aa1b4SVikas Chaudhary } 3475afaf5a2dSDavid Somayajulu } 3476afaf5a2dSDavid Somayajulu 3477afaf5a2dSDavid Somayajulu /** 3478afaf5a2dSDavid Somayajulu * qla4xxx_free_adapter - release the adapter 3479afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 3480afaf5a2dSDavid Somayajulu **/ 3481afaf5a2dSDavid Somayajulu static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 3482afaf5a2dSDavid Somayajulu { 34838a288960SSarang Radke qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 3484afaf5a2dSDavid Somayajulu 3485afaf5a2dSDavid Somayajulu if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 3486afaf5a2dSDavid Somayajulu /* Turn-off interrupts on the card. */ 3487f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 3488afaf5a2dSDavid Somayajulu } 3489afaf5a2dSDavid Somayajulu 3490d9e62e51SVikas Chaudhary if (is_qla40XX(ha)) { 3491d9e62e51SVikas Chaudhary writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 3492d9e62e51SVikas Chaudhary &ha->reg->ctrl_status); 3493d9e62e51SVikas Chaudhary readl(&ha->reg->ctrl_status); 3494d9e62e51SVikas Chaudhary } else if (is_qla8022(ha)) { 34957664a1fdSVikas Chaudhary writel(0, &ha->qla4_82xx_reg->host_int); 34967664a1fdSVikas Chaudhary readl(&ha->qla4_82xx_reg->host_int); 3497d9e62e51SVikas Chaudhary } 3498d9e62e51SVikas Chaudhary 3499afaf5a2dSDavid Somayajulu /* Remove timer thread, if present */ 3500afaf5a2dSDavid Somayajulu if (ha->timer_active) 3501afaf5a2dSDavid Somayajulu qla4xxx_stop_timer(ha); 3502afaf5a2dSDavid Somayajulu 3503f4f5df23SVikas Chaudhary /* Kill the kernel thread for this host */ 3504f4f5df23SVikas Chaudhary if (ha->dpc_thread) 3505f4f5df23SVikas Chaudhary destroy_workqueue(ha->dpc_thread); 3506f4f5df23SVikas Chaudhary 3507b3a271a9SManish Rangankar /* Kill the kernel thread for this host */ 3508b3a271a9SManish Rangankar if (ha->task_wq) 3509b3a271a9SManish Rangankar destroy_workqueue(ha->task_wq); 3510b3a271a9SManish Rangankar 3511f4f5df23SVikas Chaudhary /* Put firmware in known state */ 3512f4f5df23SVikas Chaudhary ha->isp_ops->reset_firmware(ha); 3513f4f5df23SVikas Chaudhary 3514f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 3515f8086f4fSVikas Chaudhary qla4_82xx_idc_lock(ha); 3516f4f5df23SVikas Chaudhary qla4_8xxx_clear_drv_active(ha); 3517f8086f4fSVikas Chaudhary qla4_82xx_idc_unlock(ha); 3518f4f5df23SVikas Chaudhary } 3519f4f5df23SVikas Chaudhary 3520afaf5a2dSDavid Somayajulu /* Detach interrupts */ 3521afaf5a2dSDavid Somayajulu if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 3522f4f5df23SVikas Chaudhary qla4xxx_free_irqs(ha); 3523afaf5a2dSDavid Somayajulu 3524bee4fe8eSDavid C Somayajulu /* free extra memory */ 3525bee4fe8eSDavid C Somayajulu qla4xxx_mem_free(ha); 3526f4f5df23SVikas Chaudhary } 3527bee4fe8eSDavid C Somayajulu 3528f4f5df23SVikas Chaudhary int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 3529f4f5df23SVikas Chaudhary { 3530f4f5df23SVikas Chaudhary int status = 0; 3531f4f5df23SVikas Chaudhary unsigned long mem_base, mem_len, db_base, db_len; 3532f4f5df23SVikas Chaudhary struct pci_dev *pdev = ha->pdev; 3533afaf5a2dSDavid Somayajulu 3534f4f5df23SVikas Chaudhary status = pci_request_regions(pdev, DRIVER_NAME); 3535f4f5df23SVikas Chaudhary if (status) { 3536f4f5df23SVikas Chaudhary printk(KERN_WARNING 3537f4f5df23SVikas Chaudhary "scsi(%ld) Failed to reserve PIO regions (%s) " 3538f4f5df23SVikas Chaudhary "status=%d\n", ha->host_no, pci_name(pdev), status); 3539f4f5df23SVikas Chaudhary goto iospace_error_exit; 3540f4f5df23SVikas Chaudhary } 3541f4f5df23SVikas Chaudhary 3542f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 35437d7311c4SSergei Shtylyov __func__, pdev->revision)); 35447d7311c4SSergei Shtylyov ha->revision_id = pdev->revision; 3545f4f5df23SVikas Chaudhary 3546f4f5df23SVikas Chaudhary /* remap phys address */ 3547f4f5df23SVikas Chaudhary mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 3548f4f5df23SVikas Chaudhary mem_len = pci_resource_len(pdev, 0); 3549f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 3550f4f5df23SVikas Chaudhary __func__, mem_base, mem_len)); 3551f4f5df23SVikas Chaudhary 3552f4f5df23SVikas Chaudhary /* mapping of pcibase pointer */ 3553f4f5df23SVikas Chaudhary ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 3554f4f5df23SVikas Chaudhary if (!ha->nx_pcibase) { 3555f4f5df23SVikas Chaudhary printk(KERN_ERR 3556f4f5df23SVikas Chaudhary "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 3557f4f5df23SVikas Chaudhary pci_release_regions(ha->pdev); 3558f4f5df23SVikas Chaudhary goto iospace_error_exit; 3559f4f5df23SVikas Chaudhary } 3560f4f5df23SVikas Chaudhary 3561f4f5df23SVikas Chaudhary /* Mapping of IO base pointer, door bell read and write pointer */ 3562f4f5df23SVikas Chaudhary 3563f4f5df23SVikas Chaudhary /* mapping of IO base pointer */ 35647664a1fdSVikas Chaudhary ha->qla4_82xx_reg = 3565f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase + 3566f4f5df23SVikas Chaudhary 0xbc000 + (ha->pdev->devfn << 11)); 3567f4f5df23SVikas Chaudhary 3568f4f5df23SVikas Chaudhary db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 3569f4f5df23SVikas Chaudhary db_len = pci_resource_len(pdev, 4); 3570f4f5df23SVikas Chaudhary 35712657c800SShyam Sundar ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 35722657c800SShyam Sundar QLA82XX_CAM_RAM_DB2); 3573f4f5df23SVikas Chaudhary 35742657c800SShyam Sundar return 0; 3575f4f5df23SVikas Chaudhary iospace_error_exit: 3576f4f5df23SVikas Chaudhary return -ENOMEM; 3577afaf5a2dSDavid Somayajulu } 3578afaf5a2dSDavid Somayajulu 3579afaf5a2dSDavid Somayajulu /*** 3580afaf5a2dSDavid Somayajulu * qla4xxx_iospace_config - maps registers 3581afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 3582afaf5a2dSDavid Somayajulu * 3583afaf5a2dSDavid Somayajulu * This routines maps HBA's registers from the pci address space 3584afaf5a2dSDavid Somayajulu * into the kernel virtual address space for memory mapped i/o. 3585afaf5a2dSDavid Somayajulu **/ 3586f4f5df23SVikas Chaudhary int qla4xxx_iospace_config(struct scsi_qla_host *ha) 3587afaf5a2dSDavid Somayajulu { 3588afaf5a2dSDavid Somayajulu unsigned long pio, pio_len, pio_flags; 3589afaf5a2dSDavid Somayajulu unsigned long mmio, mmio_len, mmio_flags; 3590afaf5a2dSDavid Somayajulu 3591afaf5a2dSDavid Somayajulu pio = pci_resource_start(ha->pdev, 0); 3592afaf5a2dSDavid Somayajulu pio_len = pci_resource_len(ha->pdev, 0); 3593afaf5a2dSDavid Somayajulu pio_flags = pci_resource_flags(ha->pdev, 0); 3594afaf5a2dSDavid Somayajulu if (pio_flags & IORESOURCE_IO) { 3595afaf5a2dSDavid Somayajulu if (pio_len < MIN_IOBASE_LEN) { 3596c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3597afaf5a2dSDavid Somayajulu "Invalid PCI I/O region size\n"); 3598afaf5a2dSDavid Somayajulu pio = 0; 3599afaf5a2dSDavid Somayajulu } 3600afaf5a2dSDavid Somayajulu } else { 3601c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 3602afaf5a2dSDavid Somayajulu pio = 0; 3603afaf5a2dSDavid Somayajulu } 3604afaf5a2dSDavid Somayajulu 3605afaf5a2dSDavid Somayajulu /* Use MMIO operations for all accesses. */ 3606afaf5a2dSDavid Somayajulu mmio = pci_resource_start(ha->pdev, 1); 3607afaf5a2dSDavid Somayajulu mmio_len = pci_resource_len(ha->pdev, 1); 3608afaf5a2dSDavid Somayajulu mmio_flags = pci_resource_flags(ha->pdev, 1); 3609afaf5a2dSDavid Somayajulu 3610afaf5a2dSDavid Somayajulu if (!(mmio_flags & IORESOURCE_MEM)) { 3611c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3612afaf5a2dSDavid Somayajulu "region #0 not an MMIO resource, aborting\n"); 3613afaf5a2dSDavid Somayajulu 3614afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3615afaf5a2dSDavid Somayajulu } 3616c2660df3SVikas Chaudhary 3617afaf5a2dSDavid Somayajulu if (mmio_len < MIN_IOBASE_LEN) { 3618c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3619afaf5a2dSDavid Somayajulu "Invalid PCI mem region size, aborting\n"); 3620afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3621afaf5a2dSDavid Somayajulu } 3622afaf5a2dSDavid Somayajulu 3623afaf5a2dSDavid Somayajulu if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 3624c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3625afaf5a2dSDavid Somayajulu "Failed to reserve PIO/MMIO regions\n"); 3626afaf5a2dSDavid Somayajulu 3627afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3628afaf5a2dSDavid Somayajulu } 3629afaf5a2dSDavid Somayajulu 3630afaf5a2dSDavid Somayajulu ha->pio_address = pio; 3631afaf5a2dSDavid Somayajulu ha->pio_length = pio_len; 3632afaf5a2dSDavid Somayajulu ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 3633afaf5a2dSDavid Somayajulu if (!ha->reg) { 3634c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3635afaf5a2dSDavid Somayajulu "cannot remap MMIO, aborting\n"); 3636afaf5a2dSDavid Somayajulu 3637afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3638afaf5a2dSDavid Somayajulu } 3639afaf5a2dSDavid Somayajulu 3640afaf5a2dSDavid Somayajulu return 0; 3641afaf5a2dSDavid Somayajulu 3642afaf5a2dSDavid Somayajulu iospace_error_exit: 3643afaf5a2dSDavid Somayajulu return -ENOMEM; 3644afaf5a2dSDavid Somayajulu } 3645afaf5a2dSDavid Somayajulu 3646f4f5df23SVikas Chaudhary static struct isp_operations qla4xxx_isp_ops = { 3647f4f5df23SVikas Chaudhary .iospace_config = qla4xxx_iospace_config, 3648f4f5df23SVikas Chaudhary .pci_config = qla4xxx_pci_config, 3649f4f5df23SVikas Chaudhary .disable_intrs = qla4xxx_disable_intrs, 3650f4f5df23SVikas Chaudhary .enable_intrs = qla4xxx_enable_intrs, 3651f4f5df23SVikas Chaudhary .start_firmware = qla4xxx_start_firmware, 3652f4f5df23SVikas Chaudhary .intr_handler = qla4xxx_intr_handler, 3653f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4xxx_interrupt_service_routine, 3654f4f5df23SVikas Chaudhary .reset_chip = qla4xxx_soft_reset, 3655f4f5df23SVikas Chaudhary .reset_firmware = qla4xxx_hw_reset, 3656f4f5df23SVikas Chaudhary .queue_iocb = qla4xxx_queue_iocb, 3657f4f5df23SVikas Chaudhary .complete_iocb = qla4xxx_complete_iocb, 3658f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 3659f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 3660f4f5df23SVikas Chaudhary .get_sys_info = qla4xxx_get_sys_info, 3661f4f5df23SVikas Chaudhary }; 3662f4f5df23SVikas Chaudhary 36637664a1fdSVikas Chaudhary static struct isp_operations qla4_82xx_isp_ops = { 3664f4f5df23SVikas Chaudhary .iospace_config = qla4_8xxx_iospace_config, 3665f4f5df23SVikas Chaudhary .pci_config = qla4_8xxx_pci_config, 3666f8086f4fSVikas Chaudhary .disable_intrs = qla4_82xx_disable_intrs, 3667f8086f4fSVikas Chaudhary .enable_intrs = qla4_82xx_enable_intrs, 3668f4f5df23SVikas Chaudhary .start_firmware = qla4_8xxx_load_risc, 3669f8086f4fSVikas Chaudhary .intr_handler = qla4_82xx_intr_handler, 3670f8086f4fSVikas Chaudhary .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 3671f8086f4fSVikas Chaudhary .reset_chip = qla4_82xx_isp_reset, 3672f4f5df23SVikas Chaudhary .reset_firmware = qla4_8xxx_stop_firmware, 3673f8086f4fSVikas Chaudhary .queue_iocb = qla4_82xx_queue_iocb, 3674f8086f4fSVikas Chaudhary .complete_iocb = qla4_82xx_complete_iocb, 3675f8086f4fSVikas Chaudhary .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 3676f8086f4fSVikas Chaudhary .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 3677f4f5df23SVikas Chaudhary .get_sys_info = qla4_8xxx_get_sys_info, 3678f4f5df23SVikas Chaudhary }; 3679f4f5df23SVikas Chaudhary 3680f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3681f4f5df23SVikas Chaudhary { 3682f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 3683f4f5df23SVikas Chaudhary } 3684f4f5df23SVikas Chaudhary 3685f8086f4fSVikas Chaudhary uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3686f4f5df23SVikas Chaudhary { 36877664a1fdSVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 3688f4f5df23SVikas Chaudhary } 3689f4f5df23SVikas Chaudhary 3690f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3691f4f5df23SVikas Chaudhary { 3692f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 3693f4f5df23SVikas Chaudhary } 3694f4f5df23SVikas Chaudhary 3695f8086f4fSVikas Chaudhary uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3696f4f5df23SVikas Chaudhary { 36977664a1fdSVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 3698f4f5df23SVikas Chaudhary } 3699f4f5df23SVikas Chaudhary 37002a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 37012a991c21SManish Rangankar { 37022a991c21SManish Rangankar struct scsi_qla_host *ha = data; 37032a991c21SManish Rangankar char *str = buf; 37042a991c21SManish Rangankar int rc; 37052a991c21SManish Rangankar 37062a991c21SManish Rangankar switch (type) { 37072a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 37082a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 37092a991c21SManish Rangankar break; 37102a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 37112a991c21SManish Rangankar rc = sprintf(str, "0\n"); 37122a991c21SManish Rangankar break; 37132a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 37142a991c21SManish Rangankar rc = sysfs_format_mac(str, ha->my_mac, 37152a991c21SManish Rangankar MAC_ADDR_LEN); 37162a991c21SManish Rangankar break; 37172a991c21SManish Rangankar default: 37182a991c21SManish Rangankar rc = -ENOSYS; 37192a991c21SManish Rangankar break; 37202a991c21SManish Rangankar } 37212a991c21SManish Rangankar return rc; 37222a991c21SManish Rangankar } 37232a991c21SManish Rangankar 3724587a1f16SAl Viro static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 37252a991c21SManish Rangankar { 37262a991c21SManish Rangankar int rc; 37272a991c21SManish Rangankar 37282a991c21SManish Rangankar switch (type) { 37292a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 37302a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 37312a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 37322a991c21SManish Rangankar rc = S_IRUGO; 37332a991c21SManish Rangankar break; 37342a991c21SManish Rangankar default: 37352a991c21SManish Rangankar rc = 0; 37362a991c21SManish Rangankar break; 37372a991c21SManish Rangankar } 37382a991c21SManish Rangankar return rc; 37392a991c21SManish Rangankar } 37402a991c21SManish Rangankar 37412a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 37422a991c21SManish Rangankar { 37432a991c21SManish Rangankar struct scsi_qla_host *ha = data; 37442a991c21SManish Rangankar char *str = buf; 37452a991c21SManish Rangankar int rc; 37462a991c21SManish Rangankar 37472a991c21SManish Rangankar switch (type) { 37482a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 37492a991c21SManish Rangankar rc = sprintf(str, "%s\n", ha->name_string); 37502a991c21SManish Rangankar break; 37512a991c21SManish Rangankar default: 37522a991c21SManish Rangankar rc = -ENOSYS; 37532a991c21SManish Rangankar break; 37542a991c21SManish Rangankar } 37552a991c21SManish Rangankar return rc; 37562a991c21SManish Rangankar } 37572a991c21SManish Rangankar 3758587a1f16SAl Viro static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 37592a991c21SManish Rangankar { 37602a991c21SManish Rangankar int rc; 37612a991c21SManish Rangankar 37622a991c21SManish Rangankar switch (type) { 37632a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 37642a991c21SManish Rangankar rc = S_IRUGO; 37652a991c21SManish Rangankar break; 37662a991c21SManish Rangankar default: 37672a991c21SManish Rangankar rc = 0; 37682a991c21SManish Rangankar break; 37692a991c21SManish Rangankar } 37702a991c21SManish Rangankar return rc; 37712a991c21SManish Rangankar } 37722a991c21SManish Rangankar 37732a991c21SManish Rangankar static ssize_t 37742a991c21SManish Rangankar qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 37752a991c21SManish Rangankar char *buf) 37762a991c21SManish Rangankar { 37772a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 37782a991c21SManish Rangankar char *str = buf; 37792a991c21SManish Rangankar int rc; 37802a991c21SManish Rangankar 37812a991c21SManish Rangankar switch (type) { 37822a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 37832a991c21SManish Rangankar rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 37842a991c21SManish Rangankar break; 37852a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 37862a991c21SManish Rangankar if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 37872a991c21SManish Rangankar rc = sprintf(buf, "%pI4\n", 37882a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 37892a991c21SManish Rangankar else 37902a991c21SManish Rangankar rc = sprintf(str, "%pI6\n", 37912a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 37922a991c21SManish Rangankar break; 37932a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 37942a991c21SManish Rangankar rc = sprintf(str, "%d\n", boot_conn->dest_port); 37952a991c21SManish Rangankar break; 37962a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 37972a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 37982a991c21SManish Rangankar boot_conn->chap.target_chap_name_length, 37992a991c21SManish Rangankar (char *)&boot_conn->chap.target_chap_name); 38002a991c21SManish Rangankar break; 38012a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 38022a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 38032a991c21SManish Rangankar boot_conn->chap.target_secret_length, 38042a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret); 38052a991c21SManish Rangankar break; 38062a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 38072a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 38082a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length, 38092a991c21SManish Rangankar (char *)&boot_conn->chap.intr_chap_name); 38102a991c21SManish Rangankar break; 38112a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 38122a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 38132a991c21SManish Rangankar boot_conn->chap.intr_secret_length, 38142a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret); 38152a991c21SManish Rangankar break; 38162a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 38172a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 38182a991c21SManish Rangankar break; 38192a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 38202a991c21SManish Rangankar rc = sprintf(str, "0\n"); 38212a991c21SManish Rangankar break; 38222a991c21SManish Rangankar default: 38232a991c21SManish Rangankar rc = -ENOSYS; 38242a991c21SManish Rangankar break; 38252a991c21SManish Rangankar } 38262a991c21SManish Rangankar return rc; 38272a991c21SManish Rangankar } 38282a991c21SManish Rangankar 38292a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 38302a991c21SManish Rangankar { 38312a991c21SManish Rangankar struct scsi_qla_host *ha = data; 38322a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 38332a991c21SManish Rangankar 38342a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 38352a991c21SManish Rangankar } 38362a991c21SManish Rangankar 38372a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 38382a991c21SManish Rangankar { 38392a991c21SManish Rangankar struct scsi_qla_host *ha = data; 38402a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 38412a991c21SManish Rangankar 38422a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 38432a991c21SManish Rangankar } 38442a991c21SManish Rangankar 3845587a1f16SAl Viro static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 38462a991c21SManish Rangankar { 38472a991c21SManish Rangankar int rc; 38482a991c21SManish Rangankar 38492a991c21SManish Rangankar switch (type) { 38502a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 38512a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 38522a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 38532a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 38542a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 38552a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 38562a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 38572a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 38582a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 38592a991c21SManish Rangankar rc = S_IRUGO; 38602a991c21SManish Rangankar break; 38612a991c21SManish Rangankar default: 38622a991c21SManish Rangankar rc = 0; 38632a991c21SManish Rangankar break; 38642a991c21SManish Rangankar } 38652a991c21SManish Rangankar return rc; 38662a991c21SManish Rangankar } 38672a991c21SManish Rangankar 38682a991c21SManish Rangankar static void qla4xxx_boot_release(void *data) 38692a991c21SManish Rangankar { 38702a991c21SManish Rangankar struct scsi_qla_host *ha = data; 38712a991c21SManish Rangankar 38722a991c21SManish Rangankar scsi_host_put(ha->host); 38732a991c21SManish Rangankar } 38742a991c21SManish Rangankar 38752a991c21SManish Rangankar static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 38762a991c21SManish Rangankar { 38772a991c21SManish Rangankar dma_addr_t buf_dma; 38782a991c21SManish Rangankar uint32_t addr, pri_addr, sec_addr; 38792a991c21SManish Rangankar uint32_t offset; 38802a991c21SManish Rangankar uint16_t func_num; 38812a991c21SManish Rangankar uint8_t val; 38822a991c21SManish Rangankar uint8_t *buf = NULL; 38832a991c21SManish Rangankar size_t size = 13 * sizeof(uint8_t); 38842a991c21SManish Rangankar int ret = QLA_SUCCESS; 38852a991c21SManish Rangankar 38862a991c21SManish Rangankar func_num = PCI_FUNC(ha->pdev->devfn); 38872a991c21SManish Rangankar 38880d5b36b8SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 38890d5b36b8SManish Rangankar __func__, ha->pdev->device, func_num); 38902a991c21SManish Rangankar 38910d5b36b8SManish Rangankar if (is_qla40XX(ha)) { 38922a991c21SManish Rangankar if (func_num == 1) { 38932a991c21SManish Rangankar addr = NVRAM_PORT0_BOOT_MODE; 38942a991c21SManish Rangankar pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 38952a991c21SManish Rangankar sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 38962a991c21SManish Rangankar } else if (func_num == 3) { 38972a991c21SManish Rangankar addr = NVRAM_PORT1_BOOT_MODE; 38982a991c21SManish Rangankar pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 38992a991c21SManish Rangankar sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 39002a991c21SManish Rangankar } else { 39012a991c21SManish Rangankar ret = QLA_ERROR; 39022a991c21SManish Rangankar goto exit_boot_info; 39032a991c21SManish Rangankar } 39042a991c21SManish Rangankar 39052a991c21SManish Rangankar /* Check Boot Mode */ 39062a991c21SManish Rangankar val = rd_nvram_byte(ha, addr); 39072a991c21SManish Rangankar if (!(val & 0x07)) { 3908e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 3909e8fb00e0SManish Rangankar "options : 0x%x\n", __func__, val)); 39102a991c21SManish Rangankar ret = QLA_ERROR; 39112a991c21SManish Rangankar goto exit_boot_info; 39122a991c21SManish Rangankar } 39132a991c21SManish Rangankar 39142a991c21SManish Rangankar /* get primary valid target index */ 39152a991c21SManish Rangankar val = rd_nvram_byte(ha, pri_addr); 39162a991c21SManish Rangankar if (val & BIT_7) 39172a991c21SManish Rangankar ddb_index[0] = (val & 0x7f); 39182a991c21SManish Rangankar 39192a991c21SManish Rangankar /* get secondary valid target index */ 39202a991c21SManish Rangankar val = rd_nvram_byte(ha, sec_addr); 39212a991c21SManish Rangankar if (val & BIT_7) 39222a991c21SManish Rangankar ddb_index[1] = (val & 0x7f); 39232a991c21SManish Rangankar 39242a991c21SManish Rangankar } else if (is_qla8022(ha)) { 39252a991c21SManish Rangankar buf = dma_alloc_coherent(&ha->pdev->dev, size, 39262a991c21SManish Rangankar &buf_dma, GFP_KERNEL); 39272a991c21SManish Rangankar if (!buf) { 39282a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 39292a991c21SManish Rangankar "%s: Unable to allocate dma buffer\n", 39302a991c21SManish Rangankar __func__)); 39312a991c21SManish Rangankar ret = QLA_ERROR; 39322a991c21SManish Rangankar goto exit_boot_info; 39332a991c21SManish Rangankar } 39342a991c21SManish Rangankar 39352a991c21SManish Rangankar if (ha->port_num == 0) 39362a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT0; 39372a991c21SManish Rangankar else if (ha->port_num == 1) 39382a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT1; 39392a991c21SManish Rangankar else { 39402a991c21SManish Rangankar ret = QLA_ERROR; 39412a991c21SManish Rangankar goto exit_boot_info_free; 39422a991c21SManish Rangankar } 39432a991c21SManish Rangankar addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 39442a991c21SManish Rangankar offset; 39452a991c21SManish Rangankar if (qla4xxx_get_flash(ha, buf_dma, addr, 39462a991c21SManish Rangankar 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 39472a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 39482a991c21SManish Rangankar " failed\n", ha->host_no, __func__)); 39492a991c21SManish Rangankar ret = QLA_ERROR; 39502a991c21SManish Rangankar goto exit_boot_info_free; 39512a991c21SManish Rangankar } 39522a991c21SManish Rangankar /* Check Boot Mode */ 39532a991c21SManish Rangankar if (!(buf[1] & 0x07)) { 3954e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 3955e8fb00e0SManish Rangankar " : 0x%x\n", buf[1])); 39562a991c21SManish Rangankar ret = QLA_ERROR; 39572a991c21SManish Rangankar goto exit_boot_info_free; 39582a991c21SManish Rangankar } 39592a991c21SManish Rangankar 39602a991c21SManish Rangankar /* get primary valid target index */ 39612a991c21SManish Rangankar if (buf[2] & BIT_7) 39622a991c21SManish Rangankar ddb_index[0] = buf[2] & 0x7f; 39632a991c21SManish Rangankar 39642a991c21SManish Rangankar /* get secondary valid target index */ 39652a991c21SManish Rangankar if (buf[11] & BIT_7) 39662a991c21SManish Rangankar ddb_index[1] = buf[11] & 0x7f; 39672a991c21SManish Rangankar } else { 39682a991c21SManish Rangankar ret = QLA_ERROR; 39692a991c21SManish Rangankar goto exit_boot_info; 39702a991c21SManish Rangankar } 39712a991c21SManish Rangankar 39722a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 39732a991c21SManish Rangankar " target ID %d\n", __func__, ddb_index[0], 39742a991c21SManish Rangankar ddb_index[1])); 39752a991c21SManish Rangankar 39762a991c21SManish Rangankar exit_boot_info_free: 39772a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 39782a991c21SManish Rangankar exit_boot_info: 397920e835b4SLalit Chandivade ha->pri_ddb_idx = ddb_index[0]; 398020e835b4SLalit Chandivade ha->sec_ddb_idx = ddb_index[1]; 39812a991c21SManish Rangankar return ret; 39822a991c21SManish Rangankar } 39832a991c21SManish Rangankar 398428deb45cSLalit Chandivade /** 398528deb45cSLalit Chandivade * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 398628deb45cSLalit Chandivade * @ha: pointer to adapter structure 398728deb45cSLalit Chandivade * @username: CHAP username to be returned 398828deb45cSLalit Chandivade * @password: CHAP password to be returned 398928deb45cSLalit Chandivade * 399028deb45cSLalit Chandivade * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 399128deb45cSLalit Chandivade * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 399228deb45cSLalit Chandivade * So from the CHAP cache find the first BIDI CHAP entry and set it 399328deb45cSLalit Chandivade * to the boot record in sysfs. 399428deb45cSLalit Chandivade **/ 399528deb45cSLalit Chandivade static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 399628deb45cSLalit Chandivade char *password) 399728deb45cSLalit Chandivade { 399828deb45cSLalit Chandivade int i, ret = -EINVAL; 399928deb45cSLalit Chandivade int max_chap_entries = 0; 400028deb45cSLalit Chandivade struct ql4_chap_table *chap_table; 400128deb45cSLalit Chandivade 400228deb45cSLalit Chandivade if (is_qla8022(ha)) 400328deb45cSLalit Chandivade max_chap_entries = (ha->hw.flt_chap_size / 2) / 400428deb45cSLalit Chandivade sizeof(struct ql4_chap_table); 400528deb45cSLalit Chandivade else 400628deb45cSLalit Chandivade max_chap_entries = MAX_CHAP_ENTRIES_40XX; 400728deb45cSLalit Chandivade 400828deb45cSLalit Chandivade if (!ha->chap_list) { 400928deb45cSLalit Chandivade ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 401028deb45cSLalit Chandivade return ret; 401128deb45cSLalit Chandivade } 401228deb45cSLalit Chandivade 401328deb45cSLalit Chandivade mutex_lock(&ha->chap_sem); 401428deb45cSLalit Chandivade for (i = 0; i < max_chap_entries; i++) { 401528deb45cSLalit Chandivade chap_table = (struct ql4_chap_table *)ha->chap_list + i; 401628deb45cSLalit Chandivade if (chap_table->cookie != 401728deb45cSLalit Chandivade __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 401828deb45cSLalit Chandivade continue; 401928deb45cSLalit Chandivade } 402028deb45cSLalit Chandivade 402128deb45cSLalit Chandivade if (chap_table->flags & BIT_7) /* local */ 402228deb45cSLalit Chandivade continue; 402328deb45cSLalit Chandivade 402428deb45cSLalit Chandivade if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 402528deb45cSLalit Chandivade continue; 402628deb45cSLalit Chandivade 402728deb45cSLalit Chandivade strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 402828deb45cSLalit Chandivade strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 402928deb45cSLalit Chandivade ret = 0; 403028deb45cSLalit Chandivade break; 403128deb45cSLalit Chandivade } 403228deb45cSLalit Chandivade mutex_unlock(&ha->chap_sem); 403328deb45cSLalit Chandivade 403428deb45cSLalit Chandivade return ret; 403528deb45cSLalit Chandivade } 403628deb45cSLalit Chandivade 403728deb45cSLalit Chandivade 40382a991c21SManish Rangankar static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 40392a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess, 40402a991c21SManish Rangankar uint16_t ddb_index) 40412a991c21SManish Rangankar { 40422a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 40432a991c21SManish Rangankar struct dev_db_entry *fw_ddb_entry; 40442a991c21SManish Rangankar dma_addr_t fw_ddb_entry_dma; 40452a991c21SManish Rangankar uint16_t idx; 40462a991c21SManish Rangankar uint16_t options; 40472a991c21SManish Rangankar int ret = QLA_SUCCESS; 40482a991c21SManish Rangankar 40492a991c21SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 40502a991c21SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 40512a991c21SManish Rangankar if (!fw_ddb_entry) { 40522a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 40532a991c21SManish Rangankar "%s: Unable to allocate dma buffer.\n", 40542a991c21SManish Rangankar __func__)); 40552a991c21SManish Rangankar ret = QLA_ERROR; 40562a991c21SManish Rangankar return ret; 40572a991c21SManish Rangankar } 40582a991c21SManish Rangankar 40592a991c21SManish Rangankar if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 40602a991c21SManish Rangankar fw_ddb_entry_dma, ddb_index)) { 4061e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 4062e8fb00e0SManish Rangankar "index [%d]\n", __func__, ddb_index)); 40632a991c21SManish Rangankar ret = QLA_ERROR; 40642a991c21SManish Rangankar goto exit_boot_target; 40652a991c21SManish Rangankar } 40662a991c21SManish Rangankar 40672a991c21SManish Rangankar /* Update target name and IP from DDB */ 40682a991c21SManish Rangankar memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 40692a991c21SManish Rangankar min(sizeof(boot_sess->target_name), 40702a991c21SManish Rangankar sizeof(fw_ddb_entry->iscsi_name))); 40712a991c21SManish Rangankar 40722a991c21SManish Rangankar options = le16_to_cpu(fw_ddb_entry->options); 40732a991c21SManish Rangankar if (options & DDB_OPT_IPV6_DEVICE) { 40742a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 40752a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 40762a991c21SManish Rangankar } else { 40772a991c21SManish Rangankar boot_conn->dest_ipaddr.ip_type = 0x1; 40782a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 40792a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 40802a991c21SManish Rangankar } 40812a991c21SManish Rangankar 40822a991c21SManish Rangankar boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 40832a991c21SManish Rangankar 40842a991c21SManish Rangankar /* update chap information */ 40852a991c21SManish Rangankar idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 40862a991c21SManish Rangankar 40872a991c21SManish Rangankar if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 40882a991c21SManish Rangankar 40892a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 40902a991c21SManish Rangankar 40912a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 40922a991c21SManish Rangankar target_chap_name, 40932a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret, 40942a991c21SManish Rangankar idx); 40952a991c21SManish Rangankar if (ret) { 40962a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 40972a991c21SManish Rangankar ret = QLA_ERROR; 40982a991c21SManish Rangankar goto exit_boot_target; 40992a991c21SManish Rangankar } 41002a991c21SManish Rangankar 41012a991c21SManish Rangankar boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 41022a991c21SManish Rangankar boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 41032a991c21SManish Rangankar } 41042a991c21SManish Rangankar 41052a991c21SManish Rangankar if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 41062a991c21SManish Rangankar 41072a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 41082a991c21SManish Rangankar 410928deb45cSLalit Chandivade ret = qla4xxx_get_bidi_chap(ha, 411028deb45cSLalit Chandivade (char *)&boot_conn->chap.intr_chap_name, 411128deb45cSLalit Chandivade (char *)&boot_conn->chap.intr_secret); 411228deb45cSLalit Chandivade 41132a991c21SManish Rangankar if (ret) { 41142a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 41152a991c21SManish Rangankar ret = QLA_ERROR; 41162a991c21SManish Rangankar goto exit_boot_target; 41172a991c21SManish Rangankar } 41182a991c21SManish Rangankar 41192a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 41202a991c21SManish Rangankar boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 41212a991c21SManish Rangankar } 41222a991c21SManish Rangankar 41232a991c21SManish Rangankar exit_boot_target: 41242a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 41252a991c21SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 41262a991c21SManish Rangankar return ret; 41272a991c21SManish Rangankar } 41282a991c21SManish Rangankar 41292a991c21SManish Rangankar static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 41302a991c21SManish Rangankar { 41312a991c21SManish Rangankar uint16_t ddb_index[2]; 41328de5b958SLalit Chandivade int ret = QLA_ERROR; 41338de5b958SLalit Chandivade int rval; 41342a991c21SManish Rangankar 41352a991c21SManish Rangankar memset(ddb_index, 0, sizeof(ddb_index)); 41368de5b958SLalit Chandivade ddb_index[0] = 0xffff; 41378de5b958SLalit Chandivade ddb_index[1] = 0xffff; 41382a991c21SManish Rangankar ret = get_fw_boot_info(ha, ddb_index); 41392a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 4140e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 4141e8fb00e0SManish Rangankar "%s: No boot target configured.\n", __func__)); 41422a991c21SManish Rangankar return ret; 41432a991c21SManish Rangankar } 41442a991c21SManish Rangankar 414513483730SMike Christie if (ql4xdisablesysfsboot) 414613483730SMike Christie return QLA_SUCCESS; 414713483730SMike Christie 41488de5b958SLalit Chandivade if (ddb_index[0] == 0xffff) 41498de5b958SLalit Chandivade goto sec_target; 41508de5b958SLalit Chandivade 41518de5b958SLalit Chandivade rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 41522a991c21SManish Rangankar ddb_index[0]); 41538de5b958SLalit Chandivade if (rval != QLA_SUCCESS) { 4154e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 4155e8fb00e0SManish Rangankar "configured\n", __func__)); 41568de5b958SLalit Chandivade } else 41578de5b958SLalit Chandivade ret = QLA_SUCCESS; 41582a991c21SManish Rangankar 41598de5b958SLalit Chandivade sec_target: 41608de5b958SLalit Chandivade if (ddb_index[1] == 0xffff) 41618de5b958SLalit Chandivade goto exit_get_boot_info; 41628de5b958SLalit Chandivade 41638de5b958SLalit Chandivade rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 41642a991c21SManish Rangankar ddb_index[1]); 41658de5b958SLalit Chandivade if (rval != QLA_SUCCESS) { 4166e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 4167e8fb00e0SManish Rangankar " configured\n", __func__)); 41688de5b958SLalit Chandivade } else 41698de5b958SLalit Chandivade ret = QLA_SUCCESS; 41708de5b958SLalit Chandivade 41718de5b958SLalit Chandivade exit_get_boot_info: 41722a991c21SManish Rangankar return ret; 41732a991c21SManish Rangankar } 41742a991c21SManish Rangankar 41752a991c21SManish Rangankar static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 41762a991c21SManish Rangankar { 41772a991c21SManish Rangankar struct iscsi_boot_kobj *boot_kobj; 41782a991c21SManish Rangankar 41792a991c21SManish Rangankar if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 418013483730SMike Christie return QLA_ERROR; 418113483730SMike Christie 418213483730SMike Christie if (ql4xdisablesysfsboot) { 418313483730SMike Christie ql4_printk(KERN_INFO, ha, 418413483730SMike Christie "%s: syfsboot disabled - driver will trigger login " 418513483730SMike Christie "and publish session for discovery .\n", __func__); 418613483730SMike Christie return QLA_SUCCESS; 418713483730SMike Christie } 418813483730SMike Christie 41892a991c21SManish Rangankar 41902a991c21SManish Rangankar ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 41912a991c21SManish Rangankar if (!ha->boot_kset) 41922a991c21SManish Rangankar goto kset_free; 41932a991c21SManish Rangankar 41942a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 41952a991c21SManish Rangankar goto kset_free; 41962a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 41972a991c21SManish Rangankar qla4xxx_show_boot_tgt_pri_info, 41982a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 41992a991c21SManish Rangankar qla4xxx_boot_release); 42002a991c21SManish Rangankar if (!boot_kobj) 42012a991c21SManish Rangankar goto put_host; 42022a991c21SManish Rangankar 42032a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 42042a991c21SManish Rangankar goto kset_free; 42052a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 42062a991c21SManish Rangankar qla4xxx_show_boot_tgt_sec_info, 42072a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 42082a991c21SManish Rangankar qla4xxx_boot_release); 42092a991c21SManish Rangankar if (!boot_kobj) 42102a991c21SManish Rangankar goto put_host; 42112a991c21SManish Rangankar 42122a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 42132a991c21SManish Rangankar goto kset_free; 42142a991c21SManish Rangankar boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 42152a991c21SManish Rangankar qla4xxx_show_boot_ini_info, 42162a991c21SManish Rangankar qla4xxx_ini_get_attr_visibility, 42172a991c21SManish Rangankar qla4xxx_boot_release); 42182a991c21SManish Rangankar if (!boot_kobj) 42192a991c21SManish Rangankar goto put_host; 42202a991c21SManish Rangankar 42212a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 42222a991c21SManish Rangankar goto kset_free; 42232a991c21SManish Rangankar boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 42242a991c21SManish Rangankar qla4xxx_show_boot_eth_info, 42252a991c21SManish Rangankar qla4xxx_eth_get_attr_visibility, 42262a991c21SManish Rangankar qla4xxx_boot_release); 42272a991c21SManish Rangankar if (!boot_kobj) 42282a991c21SManish Rangankar goto put_host; 42292a991c21SManish Rangankar 423013483730SMike Christie return QLA_SUCCESS; 42312a991c21SManish Rangankar 42322a991c21SManish Rangankar put_host: 42332a991c21SManish Rangankar scsi_host_put(ha->host); 42342a991c21SManish Rangankar kset_free: 42352a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 42362a991c21SManish Rangankar return -ENOMEM; 42372a991c21SManish Rangankar } 42382a991c21SManish Rangankar 42394549415aSLalit Chandivade 42404549415aSLalit Chandivade /** 42414549415aSLalit Chandivade * qla4xxx_create chap_list - Create CHAP list from FLASH 42424549415aSLalit Chandivade * @ha: pointer to adapter structure 42434549415aSLalit Chandivade * 42444549415aSLalit Chandivade * Read flash and make a list of CHAP entries, during login when a CHAP entry 42454549415aSLalit Chandivade * is received, it will be checked in this list. If entry exist then the CHAP 42464549415aSLalit Chandivade * entry index is set in the DDB. If CHAP entry does not exist in this list 42474549415aSLalit Chandivade * then a new entry is added in FLASH in CHAP table and the index obtained is 42484549415aSLalit Chandivade * used in the DDB. 42494549415aSLalit Chandivade **/ 42504549415aSLalit Chandivade static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 42514549415aSLalit Chandivade { 42524549415aSLalit Chandivade int rval = 0; 42534549415aSLalit Chandivade uint8_t *chap_flash_data = NULL; 42544549415aSLalit Chandivade uint32_t offset; 42554549415aSLalit Chandivade dma_addr_t chap_dma; 42564549415aSLalit Chandivade uint32_t chap_size = 0; 42574549415aSLalit Chandivade 42584549415aSLalit Chandivade if (is_qla40XX(ha)) 42594549415aSLalit Chandivade chap_size = MAX_CHAP_ENTRIES_40XX * 42604549415aSLalit Chandivade sizeof(struct ql4_chap_table); 42614549415aSLalit Chandivade else /* Single region contains CHAP info for both 42624549415aSLalit Chandivade * ports which is divided into half for each port. 42634549415aSLalit Chandivade */ 42644549415aSLalit Chandivade chap_size = ha->hw.flt_chap_size / 2; 42654549415aSLalit Chandivade 42664549415aSLalit Chandivade chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 42674549415aSLalit Chandivade &chap_dma, GFP_KERNEL); 42684549415aSLalit Chandivade if (!chap_flash_data) { 42694549415aSLalit Chandivade ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 42704549415aSLalit Chandivade return; 42714549415aSLalit Chandivade } 42724549415aSLalit Chandivade if (is_qla40XX(ha)) 42734549415aSLalit Chandivade offset = FLASH_CHAP_OFFSET; 42744549415aSLalit Chandivade else { 42754549415aSLalit Chandivade offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 42764549415aSLalit Chandivade if (ha->port_num == 1) 42774549415aSLalit Chandivade offset += chap_size; 42784549415aSLalit Chandivade } 42794549415aSLalit Chandivade 42804549415aSLalit Chandivade rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 42814549415aSLalit Chandivade if (rval != QLA_SUCCESS) 42824549415aSLalit Chandivade goto exit_chap_list; 42834549415aSLalit Chandivade 42844549415aSLalit Chandivade if (ha->chap_list == NULL) 42854549415aSLalit Chandivade ha->chap_list = vmalloc(chap_size); 42864549415aSLalit Chandivade if (ha->chap_list == NULL) { 42874549415aSLalit Chandivade ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 42884549415aSLalit Chandivade goto exit_chap_list; 42894549415aSLalit Chandivade } 42904549415aSLalit Chandivade 42914549415aSLalit Chandivade memcpy(ha->chap_list, chap_flash_data, chap_size); 42924549415aSLalit Chandivade 42934549415aSLalit Chandivade exit_chap_list: 42944549415aSLalit Chandivade dma_free_coherent(&ha->pdev->dev, chap_size, 42954549415aSLalit Chandivade chap_flash_data, chap_dma); 429613483730SMike Christie } 429713483730SMike Christie 429813483730SMike Christie static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 429913483730SMike Christie struct ql4_tuple_ddb *tddb) 430013483730SMike Christie { 430113483730SMike Christie struct scsi_qla_host *ha; 430213483730SMike Christie struct iscsi_cls_session *cls_sess; 430313483730SMike Christie struct iscsi_cls_conn *cls_conn; 430413483730SMike Christie struct iscsi_session *sess; 430513483730SMike Christie struct iscsi_conn *conn; 430613483730SMike Christie 430713483730SMike Christie DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 430813483730SMike Christie ha = ddb_entry->ha; 430913483730SMike Christie cls_sess = ddb_entry->sess; 431013483730SMike Christie sess = cls_sess->dd_data; 431113483730SMike Christie cls_conn = ddb_entry->conn; 431213483730SMike Christie conn = cls_conn->dd_data; 431313483730SMike Christie 431413483730SMike Christie tddb->tpgt = sess->tpgt; 431513483730SMike Christie tddb->port = conn->persistent_port; 431613483730SMike Christie strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 431713483730SMike Christie strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 431813483730SMike Christie } 431913483730SMike Christie 432013483730SMike Christie static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 43211cb78d73SVikas Chaudhary struct ql4_tuple_ddb *tddb, 43221cb78d73SVikas Chaudhary uint8_t *flash_isid) 432313483730SMike Christie { 432413483730SMike Christie uint16_t options = 0; 432513483730SMike Christie 432613483730SMike Christie tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 432713483730SMike Christie memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 432813483730SMike Christie min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 432913483730SMike Christie 433013483730SMike Christie options = le16_to_cpu(fw_ddb_entry->options); 433113483730SMike Christie if (options & DDB_OPT_IPV6_DEVICE) 433213483730SMike Christie sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 433313483730SMike Christie else 433413483730SMike Christie sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 433513483730SMike Christie 433613483730SMike Christie tddb->port = le16_to_cpu(fw_ddb_entry->port); 43371cb78d73SVikas Chaudhary 43381cb78d73SVikas Chaudhary if (flash_isid == NULL) 43391cb78d73SVikas Chaudhary memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 43401cb78d73SVikas Chaudhary sizeof(tddb->isid)); 43411cb78d73SVikas Chaudhary else 43421cb78d73SVikas Chaudhary memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 434313483730SMike Christie } 434413483730SMike Christie 434513483730SMike Christie static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 434613483730SMike Christie struct ql4_tuple_ddb *old_tddb, 4347173269efSManish Rangankar struct ql4_tuple_ddb *new_tddb, 4348173269efSManish Rangankar uint8_t is_isid_compare) 434913483730SMike Christie { 435013483730SMike Christie if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 435113483730SMike Christie return QLA_ERROR; 435213483730SMike Christie 435313483730SMike Christie if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 435413483730SMike Christie return QLA_ERROR; 435513483730SMike Christie 435613483730SMike Christie if (old_tddb->port != new_tddb->port) 435713483730SMike Christie return QLA_ERROR; 435813483730SMike Christie 4359173269efSManish Rangankar /* For multi sessions, driver generates the ISID, so do not compare 4360173269efSManish Rangankar * ISID in reset path since it would be a comparision between the 4361173269efSManish Rangankar * driver generated ISID and firmware generated ISID. This could 4362173269efSManish Rangankar * lead to adding duplicated DDBs in the list as driver generated 4363173269efSManish Rangankar * ISID would not match firmware generated ISID. 4364173269efSManish Rangankar */ 4365173269efSManish Rangankar if (is_isid_compare) { 4366173269efSManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x" 4367173269efSManish Rangankar "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n", 4368173269efSManish Rangankar __func__, old_tddb->isid[5], old_tddb->isid[4], 4369173269efSManish Rangankar old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1], 4370173269efSManish Rangankar old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4], 4371173269efSManish Rangankar new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1], 4372173269efSManish Rangankar new_tddb->isid[0])); 4373173269efSManish Rangankar 4374173269efSManish Rangankar if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 4375173269efSManish Rangankar sizeof(old_tddb->isid))) 4376173269efSManish Rangankar return QLA_ERROR; 4377173269efSManish Rangankar } 4378173269efSManish Rangankar 437913483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 438013483730SMike Christie "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 438113483730SMike Christie old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 438213483730SMike Christie old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 438313483730SMike Christie new_tddb->ip_addr, new_tddb->iscsi_name)); 438413483730SMike Christie 438513483730SMike Christie return QLA_SUCCESS; 438613483730SMike Christie } 438713483730SMike Christie 438813483730SMike Christie static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 438913483730SMike Christie struct dev_db_entry *fw_ddb_entry) 439013483730SMike Christie { 439113483730SMike Christie struct ddb_entry *ddb_entry; 439213483730SMike Christie struct ql4_tuple_ddb *fw_tddb = NULL; 439313483730SMike Christie struct ql4_tuple_ddb *tmp_tddb = NULL; 439413483730SMike Christie int idx; 439513483730SMike Christie int ret = QLA_ERROR; 439613483730SMike Christie 439713483730SMike Christie fw_tddb = vzalloc(sizeof(*fw_tddb)); 439813483730SMike Christie if (!fw_tddb) { 439913483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 440013483730SMike Christie "Memory Allocation failed.\n")); 440113483730SMike Christie ret = QLA_SUCCESS; 440213483730SMike Christie goto exit_check; 440313483730SMike Christie } 440413483730SMike Christie 440513483730SMike Christie tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 440613483730SMike Christie if (!tmp_tddb) { 440713483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 440813483730SMike Christie "Memory Allocation failed.\n")); 440913483730SMike Christie ret = QLA_SUCCESS; 441013483730SMike Christie goto exit_check; 441113483730SMike Christie } 441213483730SMike Christie 44131cb78d73SVikas Chaudhary qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 441413483730SMike Christie 441513483730SMike Christie for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 441613483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 441713483730SMike Christie if (ddb_entry == NULL) 441813483730SMike Christie continue; 441913483730SMike Christie 442013483730SMike Christie qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 4421173269efSManish Rangankar if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 442213483730SMike Christie ret = QLA_SUCCESS; /* found */ 442313483730SMike Christie goto exit_check; 442413483730SMike Christie } 442513483730SMike Christie } 442613483730SMike Christie 442713483730SMike Christie exit_check: 442813483730SMike Christie if (fw_tddb) 442913483730SMike Christie vfree(fw_tddb); 443013483730SMike Christie if (tmp_tddb) 443113483730SMike Christie vfree(tmp_tddb); 443213483730SMike Christie return ret; 443313483730SMike Christie } 443413483730SMike Christie 44351cb78d73SVikas Chaudhary /** 44361cb78d73SVikas Chaudhary * qla4xxx_check_existing_isid - check if target with same isid exist 44371cb78d73SVikas Chaudhary * in target list 44381cb78d73SVikas Chaudhary * @list_nt: list of target 44391cb78d73SVikas Chaudhary * @isid: isid to check 44401cb78d73SVikas Chaudhary * 44411cb78d73SVikas Chaudhary * This routine return QLA_SUCCESS if target with same isid exist 44421cb78d73SVikas Chaudhary **/ 44431cb78d73SVikas Chaudhary static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 44441cb78d73SVikas Chaudhary { 44451cb78d73SVikas Chaudhary struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 44461cb78d73SVikas Chaudhary struct dev_db_entry *fw_ddb_entry; 44471cb78d73SVikas Chaudhary 44481cb78d73SVikas Chaudhary list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 44491cb78d73SVikas Chaudhary fw_ddb_entry = &nt_ddb_idx->fw_ddb; 44501cb78d73SVikas Chaudhary 44511cb78d73SVikas Chaudhary if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 44521cb78d73SVikas Chaudhary sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 44531cb78d73SVikas Chaudhary return QLA_SUCCESS; 44541cb78d73SVikas Chaudhary } 44551cb78d73SVikas Chaudhary } 44561cb78d73SVikas Chaudhary return QLA_ERROR; 44571cb78d73SVikas Chaudhary } 44581cb78d73SVikas Chaudhary 44591cb78d73SVikas Chaudhary /** 44601cb78d73SVikas Chaudhary * qla4xxx_update_isid - compare ddbs and updated isid 44611cb78d73SVikas Chaudhary * @ha: Pointer to host adapter structure. 44621cb78d73SVikas Chaudhary * @list_nt: list of nt target 44631cb78d73SVikas Chaudhary * @fw_ddb_entry: firmware ddb entry 44641cb78d73SVikas Chaudhary * 44651cb78d73SVikas Chaudhary * This routine update isid if ddbs have same iqn, same isid and 44661cb78d73SVikas Chaudhary * different IP addr. 44671cb78d73SVikas Chaudhary * Return QLA_SUCCESS if isid is updated. 44681cb78d73SVikas Chaudhary **/ 44691cb78d73SVikas Chaudhary static int qla4xxx_update_isid(struct scsi_qla_host *ha, 44701cb78d73SVikas Chaudhary struct list_head *list_nt, 44711cb78d73SVikas Chaudhary struct dev_db_entry *fw_ddb_entry) 44721cb78d73SVikas Chaudhary { 44731cb78d73SVikas Chaudhary uint8_t base_value, i; 44741cb78d73SVikas Chaudhary 44751cb78d73SVikas Chaudhary base_value = fw_ddb_entry->isid[1] & 0x1f; 44761cb78d73SVikas Chaudhary for (i = 0; i < 8; i++) { 44771cb78d73SVikas Chaudhary fw_ddb_entry->isid[1] = (base_value | (i << 5)); 44781cb78d73SVikas Chaudhary if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 44791cb78d73SVikas Chaudhary break; 44801cb78d73SVikas Chaudhary } 44811cb78d73SVikas Chaudhary 44821cb78d73SVikas Chaudhary if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 44831cb78d73SVikas Chaudhary return QLA_ERROR; 44841cb78d73SVikas Chaudhary 44851cb78d73SVikas Chaudhary return QLA_SUCCESS; 44861cb78d73SVikas Chaudhary } 44871cb78d73SVikas Chaudhary 44881cb78d73SVikas Chaudhary /** 44891cb78d73SVikas Chaudhary * qla4xxx_should_update_isid - check if isid need to update 44901cb78d73SVikas Chaudhary * @ha: Pointer to host adapter structure. 44911cb78d73SVikas Chaudhary * @old_tddb: ddb tuple 44921cb78d73SVikas Chaudhary * @new_tddb: ddb tuple 44931cb78d73SVikas Chaudhary * 44941cb78d73SVikas Chaudhary * Return QLA_SUCCESS if different IP, different PORT, same iqn, 44951cb78d73SVikas Chaudhary * same isid 44961cb78d73SVikas Chaudhary **/ 44971cb78d73SVikas Chaudhary static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 44981cb78d73SVikas Chaudhary struct ql4_tuple_ddb *old_tddb, 44991cb78d73SVikas Chaudhary struct ql4_tuple_ddb *new_tddb) 45001cb78d73SVikas Chaudhary { 45011cb78d73SVikas Chaudhary if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 45021cb78d73SVikas Chaudhary /* Same ip */ 45031cb78d73SVikas Chaudhary if (old_tddb->port == new_tddb->port) 45041cb78d73SVikas Chaudhary return QLA_ERROR; 45051cb78d73SVikas Chaudhary } 45061cb78d73SVikas Chaudhary 45071cb78d73SVikas Chaudhary if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 45081cb78d73SVikas Chaudhary /* different iqn */ 45091cb78d73SVikas Chaudhary return QLA_ERROR; 45101cb78d73SVikas Chaudhary 45111cb78d73SVikas Chaudhary if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 45121cb78d73SVikas Chaudhary sizeof(old_tddb->isid))) 45131cb78d73SVikas Chaudhary /* different isid */ 45141cb78d73SVikas Chaudhary return QLA_ERROR; 45151cb78d73SVikas Chaudhary 45161cb78d73SVikas Chaudhary return QLA_SUCCESS; 45171cb78d73SVikas Chaudhary } 45181cb78d73SVikas Chaudhary 45191cb78d73SVikas Chaudhary /** 45201cb78d73SVikas Chaudhary * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 45211cb78d73SVikas Chaudhary * @ha: Pointer to host adapter structure. 45221cb78d73SVikas Chaudhary * @list_nt: list of nt target. 45231cb78d73SVikas Chaudhary * @fw_ddb_entry: firmware ddb entry. 45241cb78d73SVikas Chaudhary * 45251cb78d73SVikas Chaudhary * This routine check if fw_ddb_entry already exists in list_nt to avoid 45261cb78d73SVikas Chaudhary * duplicate ddb in list_nt. 45271cb78d73SVikas Chaudhary * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 45281cb78d73SVikas Chaudhary * Note: This function also update isid of DDB if required. 45291cb78d73SVikas Chaudhary **/ 45301cb78d73SVikas Chaudhary 453113483730SMike Christie static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 453213483730SMike Christie struct list_head *list_nt, 453313483730SMike Christie struct dev_db_entry *fw_ddb_entry) 453413483730SMike Christie { 453513483730SMike Christie struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 453613483730SMike Christie struct ql4_tuple_ddb *fw_tddb = NULL; 453713483730SMike Christie struct ql4_tuple_ddb *tmp_tddb = NULL; 45381cb78d73SVikas Chaudhary int rval, ret = QLA_ERROR; 453913483730SMike Christie 454013483730SMike Christie fw_tddb = vzalloc(sizeof(*fw_tddb)); 454113483730SMike Christie if (!fw_tddb) { 454213483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 454313483730SMike Christie "Memory Allocation failed.\n")); 454413483730SMike Christie ret = QLA_SUCCESS; 454513483730SMike Christie goto exit_check; 454613483730SMike Christie } 454713483730SMike Christie 454813483730SMike Christie tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 454913483730SMike Christie if (!tmp_tddb) { 455013483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 455113483730SMike Christie "Memory Allocation failed.\n")); 455213483730SMike Christie ret = QLA_SUCCESS; 455313483730SMike Christie goto exit_check; 455413483730SMike Christie } 455513483730SMike Christie 45561cb78d73SVikas Chaudhary qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 455713483730SMike Christie 455813483730SMike Christie list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 45591cb78d73SVikas Chaudhary qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 45601cb78d73SVikas Chaudhary nt_ddb_idx->flash_isid); 45611cb78d73SVikas Chaudhary ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 45621cb78d73SVikas Chaudhary /* found duplicate ddb */ 45631cb78d73SVikas Chaudhary if (ret == QLA_SUCCESS) 45641cb78d73SVikas Chaudhary goto exit_check; 45651cb78d73SVikas Chaudhary } 45661cb78d73SVikas Chaudhary 45671cb78d73SVikas Chaudhary list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 45681cb78d73SVikas Chaudhary qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 45691cb78d73SVikas Chaudhary 45701cb78d73SVikas Chaudhary ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 45711cb78d73SVikas Chaudhary if (ret == QLA_SUCCESS) { 45721cb78d73SVikas Chaudhary rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 45731cb78d73SVikas Chaudhary if (rval == QLA_SUCCESS) 45741cb78d73SVikas Chaudhary ret = QLA_ERROR; 45751cb78d73SVikas Chaudhary else 45761cb78d73SVikas Chaudhary ret = QLA_SUCCESS; 45771cb78d73SVikas Chaudhary 457813483730SMike Christie goto exit_check; 457913483730SMike Christie } 458013483730SMike Christie } 458113483730SMike Christie 458213483730SMike Christie exit_check: 458313483730SMike Christie if (fw_tddb) 458413483730SMike Christie vfree(fw_tddb); 458513483730SMike Christie if (tmp_tddb) 458613483730SMike Christie vfree(tmp_tddb); 458713483730SMike Christie return ret; 458813483730SMike Christie } 458913483730SMike Christie 45904a4bc2e9SLalit Chandivade static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 459113483730SMike Christie { 45924a4bc2e9SLalit Chandivade struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 459313483730SMike Christie 45944a4bc2e9SLalit Chandivade list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 45954a4bc2e9SLalit Chandivade list_del_init(&ddb_idx->list); 45964a4bc2e9SLalit Chandivade vfree(ddb_idx); 459713483730SMike Christie } 459813483730SMike Christie } 459913483730SMike Christie 460013483730SMike Christie static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 460113483730SMike Christie struct dev_db_entry *fw_ddb_entry) 460213483730SMike Christie { 460313483730SMike Christie struct iscsi_endpoint *ep; 460413483730SMike Christie struct sockaddr_in *addr; 460513483730SMike Christie struct sockaddr_in6 *addr6; 460613483730SMike Christie struct sockaddr *dst_addr; 460713483730SMike Christie char *ip; 460813483730SMike Christie 460913483730SMike Christie /* TODO: need to destroy on unload iscsi_endpoint*/ 461013483730SMike Christie dst_addr = vmalloc(sizeof(*dst_addr)); 461113483730SMike Christie if (!dst_addr) 461213483730SMike Christie return NULL; 461313483730SMike Christie 461413483730SMike Christie if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 461513483730SMike Christie dst_addr->sa_family = AF_INET6; 461613483730SMike Christie addr6 = (struct sockaddr_in6 *)dst_addr; 461713483730SMike Christie ip = (char *)&addr6->sin6_addr; 461813483730SMike Christie memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 461913483730SMike Christie addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 462013483730SMike Christie 462113483730SMike Christie } else { 462213483730SMike Christie dst_addr->sa_family = AF_INET; 462313483730SMike Christie addr = (struct sockaddr_in *)dst_addr; 462413483730SMike Christie ip = (char *)&addr->sin_addr; 462513483730SMike Christie memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 462613483730SMike Christie addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 462713483730SMike Christie } 462813483730SMike Christie 462913483730SMike Christie ep = qla4xxx_ep_connect(ha->host, dst_addr, 0); 463013483730SMike Christie vfree(dst_addr); 463113483730SMike Christie return ep; 463213483730SMike Christie } 463313483730SMike Christie 463413483730SMike Christie static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 463513483730SMike Christie { 463613483730SMike Christie if (ql4xdisablesysfsboot) 463713483730SMike Christie return QLA_SUCCESS; 463813483730SMike Christie if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 463913483730SMike Christie return QLA_ERROR; 464013483730SMike Christie return QLA_SUCCESS; 464113483730SMike Christie } 464213483730SMike Christie 464313483730SMike Christie static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 464413483730SMike Christie struct ddb_entry *ddb_entry) 464513483730SMike Christie { 4646c28eaacaSNilesh Javali uint16_t def_timeout; 4647c28eaacaSNilesh Javali 464813483730SMike Christie ddb_entry->ddb_type = FLASH_DDB; 464913483730SMike Christie ddb_entry->fw_ddb_index = INVALID_ENTRY; 465013483730SMike Christie ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 465113483730SMike Christie ddb_entry->ha = ha; 465213483730SMike Christie ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 465313483730SMike Christie ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 465413483730SMike Christie 465513483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 465613483730SMike Christie atomic_set(&ddb_entry->relogin_timer, 0); 465713483730SMike Christie atomic_set(&ddb_entry->relogin_retry_count, 0); 4658c28eaacaSNilesh Javali def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 465913483730SMike Christie ddb_entry->default_relogin_timeout = 4660c28eaacaSNilesh Javali (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 4661c28eaacaSNilesh Javali def_timeout : LOGIN_TOV; 466213483730SMike Christie ddb_entry->default_time2wait = 466313483730SMike Christie le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 466413483730SMike Christie } 466513483730SMike Christie 466613483730SMike Christie static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 466713483730SMike Christie { 466813483730SMike Christie uint32_t idx = 0; 466913483730SMike Christie uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 467013483730SMike Christie uint32_t sts[MBOX_REG_COUNT]; 467113483730SMike Christie uint32_t ip_state; 467213483730SMike Christie unsigned long wtime; 467313483730SMike Christie int ret; 467413483730SMike Christie 467513483730SMike Christie wtime = jiffies + (HZ * IP_CONFIG_TOV); 467613483730SMike Christie do { 467713483730SMike Christie for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 467813483730SMike Christie if (ip_idx[idx] == -1) 467913483730SMike Christie continue; 468013483730SMike Christie 468113483730SMike Christie ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 468213483730SMike Christie 468313483730SMike Christie if (ret == QLA_ERROR) { 468413483730SMike Christie ip_idx[idx] = -1; 468513483730SMike Christie continue; 468613483730SMike Christie } 468713483730SMike Christie 468813483730SMike Christie ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 468913483730SMike Christie 469013483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 469113483730SMike Christie "Waiting for IP state for idx = %d, state = 0x%x\n", 469213483730SMike Christie ip_idx[idx], ip_state)); 469313483730SMike Christie if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 469413483730SMike Christie ip_state == IP_ADDRSTATE_INVALID || 469513483730SMike Christie ip_state == IP_ADDRSTATE_PREFERRED || 469613483730SMike Christie ip_state == IP_ADDRSTATE_DEPRICATED || 469713483730SMike Christie ip_state == IP_ADDRSTATE_DISABLING) 469813483730SMike Christie ip_idx[idx] = -1; 469913483730SMike Christie } 470013483730SMike Christie 470113483730SMike Christie /* Break if all IP states checked */ 470213483730SMike Christie if ((ip_idx[0] == -1) && 470313483730SMike Christie (ip_idx[1] == -1) && 470413483730SMike Christie (ip_idx[2] == -1) && 470513483730SMike Christie (ip_idx[3] == -1)) 470613483730SMike Christie break; 470713483730SMike Christie schedule_timeout_uninterruptible(HZ); 470813483730SMike Christie } while (time_after(wtime, jiffies)); 470913483730SMike Christie } 471013483730SMike Christie 47114a4bc2e9SLalit Chandivade static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 47124a4bc2e9SLalit Chandivade struct list_head *list_st) 471313483730SMike Christie { 47144a4bc2e9SLalit Chandivade struct qla_ddb_index *st_ddb_idx; 471513483730SMike Christie int max_ddbs; 47164a4bc2e9SLalit Chandivade int fw_idx_size; 47174a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry; 47184a4bc2e9SLalit Chandivade dma_addr_t fw_ddb_dma; 471913483730SMike Christie int ret; 472013483730SMike Christie uint32_t idx = 0, next_idx = 0; 472113483730SMike Christie uint32_t state = 0, conn_err = 0; 47224a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 472313483730SMike Christie 472413483730SMike Christie fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 472513483730SMike Christie &fw_ddb_dma); 472613483730SMike Christie if (fw_ddb_entry == NULL) { 472713483730SMike Christie DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 47284a4bc2e9SLalit Chandivade goto exit_st_list; 472913483730SMike Christie } 473013483730SMike Christie 47314a4bc2e9SLalit Chandivade max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 47324a4bc2e9SLalit Chandivade MAX_DEV_DB_ENTRIES; 473313483730SMike Christie fw_idx_size = sizeof(struct qla_ddb_index); 473413483730SMike Christie 473513483730SMike Christie for (idx = 0; idx < max_ddbs; idx = next_idx) { 47364a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 47374a4bc2e9SLalit Chandivade NULL, &next_idx, &state, 47384a4bc2e9SLalit Chandivade &conn_err, NULL, &conn_id); 473913483730SMike Christie if (ret == QLA_ERROR) 474013483730SMike Christie break; 474113483730SMike Christie 4742981c982cSLalit Chandivade /* Ignore DDB if invalid state (unassigned) */ 4743981c982cSLalit Chandivade if (state == DDB_DS_UNASSIGNED) 4744981c982cSLalit Chandivade goto continue_next_st; 4745981c982cSLalit Chandivade 474613483730SMike Christie /* Check if ST, add to the list_st */ 474713483730SMike Christie if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 474813483730SMike Christie goto continue_next_st; 474913483730SMike Christie 475013483730SMike Christie st_ddb_idx = vzalloc(fw_idx_size); 475113483730SMike Christie if (!st_ddb_idx) 475213483730SMike Christie break; 475313483730SMike Christie 475413483730SMike Christie st_ddb_idx->fw_ddb_idx = idx; 475513483730SMike Christie 47564a4bc2e9SLalit Chandivade list_add_tail(&st_ddb_idx->list, list_st); 475713483730SMike Christie continue_next_st: 475813483730SMike Christie if (next_idx == 0) 475913483730SMike Christie break; 476013483730SMike Christie } 476113483730SMike Christie 47624a4bc2e9SLalit Chandivade exit_st_list: 47634a4bc2e9SLalit Chandivade if (fw_ddb_entry) 47644a4bc2e9SLalit Chandivade dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 47654a4bc2e9SLalit Chandivade } 47664a4bc2e9SLalit Chandivade 47674a4bc2e9SLalit Chandivade /** 47684a4bc2e9SLalit Chandivade * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 47694a4bc2e9SLalit Chandivade * @ha: pointer to adapter structure 47704a4bc2e9SLalit Chandivade * @list_ddb: List from which failed ddb to be removed 47714a4bc2e9SLalit Chandivade * 47724a4bc2e9SLalit Chandivade * Iterate over the list of DDBs and find and remove DDBs that are either in 47734a4bc2e9SLalit Chandivade * no connection active state or failed state 47744a4bc2e9SLalit Chandivade **/ 47754a4bc2e9SLalit Chandivade static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 47764a4bc2e9SLalit Chandivade struct list_head *list_ddb) 47774a4bc2e9SLalit Chandivade { 47784a4bc2e9SLalit Chandivade struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 47794a4bc2e9SLalit Chandivade uint32_t next_idx = 0; 47804a4bc2e9SLalit Chandivade uint32_t state = 0, conn_err = 0; 47814a4bc2e9SLalit Chandivade int ret; 47824a4bc2e9SLalit Chandivade 47834a4bc2e9SLalit Chandivade list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 47844a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 47854a4bc2e9SLalit Chandivade NULL, 0, NULL, &next_idx, &state, 47864a4bc2e9SLalit Chandivade &conn_err, NULL, NULL); 47874a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 47884a4bc2e9SLalit Chandivade continue; 47894a4bc2e9SLalit Chandivade 47904a4bc2e9SLalit Chandivade if (state == DDB_DS_NO_CONNECTION_ACTIVE || 47914a4bc2e9SLalit Chandivade state == DDB_DS_SESSION_FAILED) { 47924a4bc2e9SLalit Chandivade list_del_init(&ddb_idx->list); 47934a4bc2e9SLalit Chandivade vfree(ddb_idx); 47944a4bc2e9SLalit Chandivade } 47954a4bc2e9SLalit Chandivade } 47964a4bc2e9SLalit Chandivade } 47974a4bc2e9SLalit Chandivade 47984a4bc2e9SLalit Chandivade static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 47994a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry, 48004a4bc2e9SLalit Chandivade int is_reset) 48014a4bc2e9SLalit Chandivade { 48024a4bc2e9SLalit Chandivade struct iscsi_cls_session *cls_sess; 48034a4bc2e9SLalit Chandivade struct iscsi_session *sess; 48044a4bc2e9SLalit Chandivade struct iscsi_cls_conn *cls_conn; 48054a4bc2e9SLalit Chandivade struct iscsi_endpoint *ep; 48064a4bc2e9SLalit Chandivade uint16_t cmds_max = 32; 48074a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 48084a4bc2e9SLalit Chandivade uint32_t initial_cmdsn = 0; 48094a4bc2e9SLalit Chandivade int ret = QLA_SUCCESS; 48104a4bc2e9SLalit Chandivade 48114a4bc2e9SLalit Chandivade struct ddb_entry *ddb_entry = NULL; 48124a4bc2e9SLalit Chandivade 48134a4bc2e9SLalit Chandivade /* Create session object, with INVALID_ENTRY, 48144a4bc2e9SLalit Chandivade * the targer_id would get set when we issue the login 48154a4bc2e9SLalit Chandivade */ 48164a4bc2e9SLalit Chandivade cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 48174a4bc2e9SLalit Chandivade cmds_max, sizeof(struct ddb_entry), 48184a4bc2e9SLalit Chandivade sizeof(struct ql4_task_data), 48194a4bc2e9SLalit Chandivade initial_cmdsn, INVALID_ENTRY); 48204a4bc2e9SLalit Chandivade if (!cls_sess) { 48214a4bc2e9SLalit Chandivade ret = QLA_ERROR; 48224a4bc2e9SLalit Chandivade goto exit_setup; 48234a4bc2e9SLalit Chandivade } 48244a4bc2e9SLalit Chandivade 48254a4bc2e9SLalit Chandivade /* 48264a4bc2e9SLalit Chandivade * so calling module_put function to decrement the 48274a4bc2e9SLalit Chandivade * reference count. 48284a4bc2e9SLalit Chandivade **/ 48294a4bc2e9SLalit Chandivade module_put(qla4xxx_iscsi_transport.owner); 48304a4bc2e9SLalit Chandivade sess = cls_sess->dd_data; 48314a4bc2e9SLalit Chandivade ddb_entry = sess->dd_data; 48324a4bc2e9SLalit Chandivade ddb_entry->sess = cls_sess; 48334a4bc2e9SLalit Chandivade 48344a4bc2e9SLalit Chandivade cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 48354a4bc2e9SLalit Chandivade memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 48364a4bc2e9SLalit Chandivade sizeof(struct dev_db_entry)); 48374a4bc2e9SLalit Chandivade 48384a4bc2e9SLalit Chandivade qla4xxx_setup_flash_ddb_entry(ha, ddb_entry); 48394a4bc2e9SLalit Chandivade 48404a4bc2e9SLalit Chandivade cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 48414a4bc2e9SLalit Chandivade 48424a4bc2e9SLalit Chandivade if (!cls_conn) { 48434a4bc2e9SLalit Chandivade ret = QLA_ERROR; 48444a4bc2e9SLalit Chandivade goto exit_setup; 48454a4bc2e9SLalit Chandivade } 48464a4bc2e9SLalit Chandivade 48474a4bc2e9SLalit Chandivade ddb_entry->conn = cls_conn; 48484a4bc2e9SLalit Chandivade 48494a4bc2e9SLalit Chandivade /* Setup ep, for displaying attributes in sysfs */ 48504a4bc2e9SLalit Chandivade ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 48514a4bc2e9SLalit Chandivade if (ep) { 48524a4bc2e9SLalit Chandivade ep->conn = cls_conn; 48534a4bc2e9SLalit Chandivade cls_conn->ep = ep; 48544a4bc2e9SLalit Chandivade } else { 48554a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 48564a4bc2e9SLalit Chandivade ret = QLA_ERROR; 48574a4bc2e9SLalit Chandivade goto exit_setup; 48584a4bc2e9SLalit Chandivade } 48594a4bc2e9SLalit Chandivade 48604a4bc2e9SLalit Chandivade /* Update sess/conn params */ 48614a4bc2e9SLalit Chandivade qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 48624a4bc2e9SLalit Chandivade 48634a4bc2e9SLalit Chandivade if (is_reset == RESET_ADAPTER) { 48644a4bc2e9SLalit Chandivade iscsi_block_session(cls_sess); 48654a4bc2e9SLalit Chandivade /* Use the relogin path to discover new devices 48664a4bc2e9SLalit Chandivade * by short-circuting the logic of setting 48674a4bc2e9SLalit Chandivade * timer to relogin - instead set the flags 48684a4bc2e9SLalit Chandivade * to initiate login right away. 48694a4bc2e9SLalit Chandivade */ 48704a4bc2e9SLalit Chandivade set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 48714a4bc2e9SLalit Chandivade set_bit(DF_RELOGIN, &ddb_entry->flags); 48724a4bc2e9SLalit Chandivade } 48734a4bc2e9SLalit Chandivade 48744a4bc2e9SLalit Chandivade exit_setup: 48754a4bc2e9SLalit Chandivade return ret; 48764a4bc2e9SLalit Chandivade } 48774a4bc2e9SLalit Chandivade 48784a4bc2e9SLalit Chandivade static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 48794a4bc2e9SLalit Chandivade struct list_head *list_nt, int is_reset) 48804a4bc2e9SLalit Chandivade { 48814a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry; 48824a4bc2e9SLalit Chandivade dma_addr_t fw_ddb_dma; 48834a4bc2e9SLalit Chandivade int max_ddbs; 48844a4bc2e9SLalit Chandivade int fw_idx_size; 48854a4bc2e9SLalit Chandivade int ret; 48864a4bc2e9SLalit Chandivade uint32_t idx = 0, next_idx = 0; 48874a4bc2e9SLalit Chandivade uint32_t state = 0, conn_err = 0; 48884a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 48894a4bc2e9SLalit Chandivade struct qla_ddb_index *nt_ddb_idx; 48904a4bc2e9SLalit Chandivade 48914a4bc2e9SLalit Chandivade fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 48924a4bc2e9SLalit Chandivade &fw_ddb_dma); 48934a4bc2e9SLalit Chandivade if (fw_ddb_entry == NULL) { 48944a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 48954a4bc2e9SLalit Chandivade goto exit_nt_list; 48964a4bc2e9SLalit Chandivade } 48974a4bc2e9SLalit Chandivade max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 48984a4bc2e9SLalit Chandivade MAX_DEV_DB_ENTRIES; 48994a4bc2e9SLalit Chandivade fw_idx_size = sizeof(struct qla_ddb_index); 49004a4bc2e9SLalit Chandivade 49014a4bc2e9SLalit Chandivade for (idx = 0; idx < max_ddbs; idx = next_idx) { 49024a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 49034a4bc2e9SLalit Chandivade NULL, &next_idx, &state, 49044a4bc2e9SLalit Chandivade &conn_err, NULL, &conn_id); 49054a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 49064a4bc2e9SLalit Chandivade break; 49074a4bc2e9SLalit Chandivade 49084a4bc2e9SLalit Chandivade if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 49094a4bc2e9SLalit Chandivade goto continue_next_nt; 49104a4bc2e9SLalit Chandivade 49114a4bc2e9SLalit Chandivade /* Check if NT, then add to list it */ 49124a4bc2e9SLalit Chandivade if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 49134a4bc2e9SLalit Chandivade goto continue_next_nt; 49144a4bc2e9SLalit Chandivade 49154a4bc2e9SLalit Chandivade if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 49164a4bc2e9SLalit Chandivade state == DDB_DS_SESSION_FAILED)) 49174a4bc2e9SLalit Chandivade goto continue_next_nt; 49184a4bc2e9SLalit Chandivade 49194a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_INFO, ha, 49204a4bc2e9SLalit Chandivade "Adding DDB to session = 0x%x\n", idx)); 49214a4bc2e9SLalit Chandivade if (is_reset == INIT_ADAPTER) { 49224a4bc2e9SLalit Chandivade nt_ddb_idx = vmalloc(fw_idx_size); 49234a4bc2e9SLalit Chandivade if (!nt_ddb_idx) 49244a4bc2e9SLalit Chandivade break; 49254a4bc2e9SLalit Chandivade 49264a4bc2e9SLalit Chandivade nt_ddb_idx->fw_ddb_idx = idx; 49274a4bc2e9SLalit Chandivade 49281cb78d73SVikas Chaudhary /* Copy original isid as it may get updated in function 49291cb78d73SVikas Chaudhary * qla4xxx_update_isid(). We need original isid in 49301cb78d73SVikas Chaudhary * function qla4xxx_compare_tuple_ddb to find duplicate 49311cb78d73SVikas Chaudhary * target */ 49321cb78d73SVikas Chaudhary memcpy(&nt_ddb_idx->flash_isid[0], 49331cb78d73SVikas Chaudhary &fw_ddb_entry->isid[0], 49341cb78d73SVikas Chaudhary sizeof(nt_ddb_idx->flash_isid)); 49354a4bc2e9SLalit Chandivade 49361cb78d73SVikas Chaudhary ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 49371cb78d73SVikas Chaudhary fw_ddb_entry); 49381cb78d73SVikas Chaudhary if (ret == QLA_SUCCESS) { 49391cb78d73SVikas Chaudhary /* free nt_ddb_idx and do not add to list_nt */ 49404a4bc2e9SLalit Chandivade vfree(nt_ddb_idx); 49414a4bc2e9SLalit Chandivade goto continue_next_nt; 49424a4bc2e9SLalit Chandivade } 49431cb78d73SVikas Chaudhary 49441cb78d73SVikas Chaudhary /* Copy updated isid */ 49451cb78d73SVikas Chaudhary memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 49461cb78d73SVikas Chaudhary sizeof(struct dev_db_entry)); 49471cb78d73SVikas Chaudhary 49484a4bc2e9SLalit Chandivade list_add_tail(&nt_ddb_idx->list, list_nt); 49494a4bc2e9SLalit Chandivade } else if (is_reset == RESET_ADAPTER) { 49504a4bc2e9SLalit Chandivade if (qla4xxx_is_session_exists(ha, fw_ddb_entry) == 49514a4bc2e9SLalit Chandivade QLA_SUCCESS) 49524a4bc2e9SLalit Chandivade goto continue_next_nt; 49534a4bc2e9SLalit Chandivade } 49544a4bc2e9SLalit Chandivade 49554a4bc2e9SLalit Chandivade ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset); 49564a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 49574a4bc2e9SLalit Chandivade goto exit_nt_list; 49584a4bc2e9SLalit Chandivade 49594a4bc2e9SLalit Chandivade continue_next_nt: 49604a4bc2e9SLalit Chandivade if (next_idx == 0) 49614a4bc2e9SLalit Chandivade break; 49624a4bc2e9SLalit Chandivade } 49634a4bc2e9SLalit Chandivade 49644a4bc2e9SLalit Chandivade exit_nt_list: 49654a4bc2e9SLalit Chandivade if (fw_ddb_entry) 49664a4bc2e9SLalit Chandivade dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 49674a4bc2e9SLalit Chandivade } 49684a4bc2e9SLalit Chandivade 49694a4bc2e9SLalit Chandivade /** 49704a4bc2e9SLalit Chandivade * qla4xxx_build_ddb_list - Build ddb list and setup sessions 49714a4bc2e9SLalit Chandivade * @ha: pointer to adapter structure 49724a4bc2e9SLalit Chandivade * @is_reset: Is this init path or reset path 49734a4bc2e9SLalit Chandivade * 49744a4bc2e9SLalit Chandivade * Create a list of sendtargets (st) from firmware DDBs, issue send targets 49754a4bc2e9SLalit Chandivade * using connection open, then create the list of normal targets (nt) 49764a4bc2e9SLalit Chandivade * from firmware DDBs. Based on the list of nt setup session and connection 49774a4bc2e9SLalit Chandivade * objects. 49784a4bc2e9SLalit Chandivade **/ 49794a4bc2e9SLalit Chandivade void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 49804a4bc2e9SLalit Chandivade { 49814a4bc2e9SLalit Chandivade uint16_t tmo = 0; 49824a4bc2e9SLalit Chandivade struct list_head list_st, list_nt; 49834a4bc2e9SLalit Chandivade struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 49844a4bc2e9SLalit Chandivade unsigned long wtime; 49854a4bc2e9SLalit Chandivade 49864a4bc2e9SLalit Chandivade if (!test_bit(AF_LINK_UP, &ha->flags)) { 49874a4bc2e9SLalit Chandivade set_bit(AF_BUILD_DDB_LIST, &ha->flags); 49884a4bc2e9SLalit Chandivade ha->is_reset = is_reset; 49894a4bc2e9SLalit Chandivade return; 49904a4bc2e9SLalit Chandivade } 49914a4bc2e9SLalit Chandivade 49924a4bc2e9SLalit Chandivade INIT_LIST_HEAD(&list_st); 49934a4bc2e9SLalit Chandivade INIT_LIST_HEAD(&list_nt); 49944a4bc2e9SLalit Chandivade 49954a4bc2e9SLalit Chandivade qla4xxx_build_st_list(ha, &list_st); 49964a4bc2e9SLalit Chandivade 499713483730SMike Christie /* Before issuing conn open mbox, ensure all IPs states are configured 499813483730SMike Christie * Note, conn open fails if IPs are not configured 499913483730SMike Christie */ 500013483730SMike Christie qla4xxx_wait_for_ip_configuration(ha); 500113483730SMike Christie 500213483730SMike Christie /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 500313483730SMike Christie list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 500413483730SMike Christie qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 500513483730SMike Christie } 500613483730SMike Christie 500713483730SMike Christie /* Wait to ensure all sendtargets are done for min 12 sec wait */ 5008c28eaacaSNilesh Javali tmo = ((ha->def_timeout > LOGIN_TOV) && 5009c28eaacaSNilesh Javali (ha->def_timeout < LOGIN_TOV * 10) ? 5010c28eaacaSNilesh Javali ha->def_timeout : LOGIN_TOV); 5011c28eaacaSNilesh Javali 501213483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 501313483730SMike Christie "Default time to wait for build ddb %d\n", tmo)); 501413483730SMike Christie 501513483730SMike Christie wtime = jiffies + (HZ * tmo); 501613483730SMike Christie do { 5017f1f2e60eSNilesh Javali if (list_empty(&list_st)) 5018f1f2e60eSNilesh Javali break; 5019f1f2e60eSNilesh Javali 50204a4bc2e9SLalit Chandivade qla4xxx_remove_failed_ddb(ha, &list_st); 502113483730SMike Christie schedule_timeout_uninterruptible(HZ / 10); 502213483730SMike Christie } while (time_after(wtime, jiffies)); 502313483730SMike Christie 502413483730SMike Christie /* Free up the sendtargets list */ 50254a4bc2e9SLalit Chandivade qla4xxx_free_ddb_list(&list_st); 502613483730SMike Christie 50274a4bc2e9SLalit Chandivade qla4xxx_build_nt_list(ha, &list_nt, is_reset); 502813483730SMike Christie 50294a4bc2e9SLalit Chandivade qla4xxx_free_ddb_list(&list_nt); 503013483730SMike Christie 503113483730SMike Christie qla4xxx_free_ddb_index(ha); 503213483730SMike Christie } 503313483730SMike Christie 5034afaf5a2dSDavid Somayajulu /** 5035afaf5a2dSDavid Somayajulu * qla4xxx_probe_adapter - callback function to probe HBA 5036afaf5a2dSDavid Somayajulu * @pdev: pointer to pci_dev structure 5037afaf5a2dSDavid Somayajulu * @pci_device_id: pointer to pci_device entry 5038afaf5a2dSDavid Somayajulu * 5039afaf5a2dSDavid Somayajulu * This routine will probe for Qlogic 4xxx iSCSI host adapters. 5040afaf5a2dSDavid Somayajulu * It returns zero if successful. It also initializes all data necessary for 5041afaf5a2dSDavid Somayajulu * the driver. 5042afaf5a2dSDavid Somayajulu **/ 5043afaf5a2dSDavid Somayajulu static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, 5044afaf5a2dSDavid Somayajulu const struct pci_device_id *ent) 5045afaf5a2dSDavid Somayajulu { 5046afaf5a2dSDavid Somayajulu int ret = -ENODEV, status; 5047afaf5a2dSDavid Somayajulu struct Scsi_Host *host; 5048afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 5049afaf5a2dSDavid Somayajulu uint8_t init_retry_count = 0; 5050afaf5a2dSDavid Somayajulu char buf[34]; 5051f4f5df23SVikas Chaudhary struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 5052f9880e76SPrasanna Mumbai uint32_t dev_state; 5053afaf5a2dSDavid Somayajulu 5054afaf5a2dSDavid Somayajulu if (pci_enable_device(pdev)) 5055afaf5a2dSDavid Somayajulu return -1; 5056afaf5a2dSDavid Somayajulu 5057b3a271a9SManish Rangankar host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 5058afaf5a2dSDavid Somayajulu if (host == NULL) { 5059afaf5a2dSDavid Somayajulu printk(KERN_WARNING 5060afaf5a2dSDavid Somayajulu "qla4xxx: Couldn't allocate host from scsi layer!\n"); 5061afaf5a2dSDavid Somayajulu goto probe_disable_device; 5062afaf5a2dSDavid Somayajulu } 5063afaf5a2dSDavid Somayajulu 5064afaf5a2dSDavid Somayajulu /* Clear our data area */ 5065b3a271a9SManish Rangankar ha = to_qla_host(host); 5066afaf5a2dSDavid Somayajulu memset(ha, 0, sizeof(*ha)); 5067afaf5a2dSDavid Somayajulu 5068afaf5a2dSDavid Somayajulu /* Save the information from PCI BIOS. */ 5069afaf5a2dSDavid Somayajulu ha->pdev = pdev; 5070afaf5a2dSDavid Somayajulu ha->host = host; 5071afaf5a2dSDavid Somayajulu ha->host_no = host->host_no; 5072afaf5a2dSDavid Somayajulu 50732232be0dSLalit Chandivade pci_enable_pcie_error_reporting(pdev); 50742232be0dSLalit Chandivade 5075f4f5df23SVikas Chaudhary /* Setup Runtime configurable options */ 5076f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 50777664a1fdSVikas Chaudhary ha->isp_ops = &qla4_82xx_isp_ops; 5078f4f5df23SVikas Chaudhary rwlock_init(&ha->hw_lock); 5079f4f5df23SVikas Chaudhary ha->qdr_sn_window = -1; 5080f4f5df23SVikas Chaudhary ha->ddr_mn_window = -1; 5081f4f5df23SVikas Chaudhary ha->curr_window = 255; 5082f4f5df23SVikas Chaudhary ha->func_num = PCI_FUNC(ha->pdev->devfn); 5083f4f5df23SVikas Chaudhary nx_legacy_intr = &legacy_intr[ha->func_num]; 5084f4f5df23SVikas Chaudhary ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 5085f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_status_reg = 5086f4f5df23SVikas Chaudhary nx_legacy_intr->tgt_status_reg; 5087f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 5088f4f5df23SVikas Chaudhary ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 5089f4f5df23SVikas Chaudhary } else { 5090f4f5df23SVikas Chaudhary ha->isp_ops = &qla4xxx_isp_ops; 5091f4f5df23SVikas Chaudhary } 5092f4f5df23SVikas Chaudhary 50932232be0dSLalit Chandivade /* Set EEH reset type to fundamental if required by hba */ 50942232be0dSLalit Chandivade if (is_qla8022(ha)) 50952232be0dSLalit Chandivade pdev->needs_freset = 1; 50962232be0dSLalit Chandivade 5097afaf5a2dSDavid Somayajulu /* Configure PCI I/O space. */ 5098f4f5df23SVikas Chaudhary ret = ha->isp_ops->iospace_config(ha); 5099afaf5a2dSDavid Somayajulu if (ret) 5100f4f5df23SVikas Chaudhary goto probe_failed_ioconfig; 5101afaf5a2dSDavid Somayajulu 5102c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 5103afaf5a2dSDavid Somayajulu pdev->device, pdev->irq, ha->reg); 5104afaf5a2dSDavid Somayajulu 5105afaf5a2dSDavid Somayajulu qla4xxx_config_dma_addressing(ha); 5106afaf5a2dSDavid Somayajulu 5107afaf5a2dSDavid Somayajulu /* Initialize lists and spinlocks. */ 5108afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->free_srb_q); 5109afaf5a2dSDavid Somayajulu 5110afaf5a2dSDavid Somayajulu mutex_init(&ha->mbox_sem); 51114549415aSLalit Chandivade mutex_init(&ha->chap_sem); 5112f4f5df23SVikas Chaudhary init_completion(&ha->mbx_intr_comp); 511395d31262SVikas Chaudhary init_completion(&ha->disable_acb_comp); 5114afaf5a2dSDavid Somayajulu 5115afaf5a2dSDavid Somayajulu spin_lock_init(&ha->hardware_lock); 51168e9157c8SVikas Chaudhary spin_lock_init(&ha->work_lock); 5117afaf5a2dSDavid Somayajulu 5118ff884430SVikas Chaudhary /* Initialize work list */ 5119ff884430SVikas Chaudhary INIT_LIST_HEAD(&ha->work_list); 5120ff884430SVikas Chaudhary 5121afaf5a2dSDavid Somayajulu /* Allocate dma buffers */ 5122afaf5a2dSDavid Somayajulu if (qla4xxx_mem_alloc(ha)) { 5123c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 5124afaf5a2dSDavid Somayajulu "[ERROR] Failed to allocate memory for adapter\n"); 5125afaf5a2dSDavid Somayajulu 5126afaf5a2dSDavid Somayajulu ret = -ENOMEM; 5127afaf5a2dSDavid Somayajulu goto probe_failed; 5128afaf5a2dSDavid Somayajulu } 5129afaf5a2dSDavid Somayajulu 5130b3a271a9SManish Rangankar host->cmd_per_lun = 3; 5131b3a271a9SManish Rangankar host->max_channel = 0; 5132b3a271a9SManish Rangankar host->max_lun = MAX_LUNS - 1; 5133b3a271a9SManish Rangankar host->max_id = MAX_TARGETS; 5134b3a271a9SManish Rangankar host->max_cmd_len = IOCB_MAX_CDB_LEN; 5135b3a271a9SManish Rangankar host->can_queue = MAX_SRBS ; 5136b3a271a9SManish Rangankar host->transportt = qla4xxx_scsi_transport; 5137b3a271a9SManish Rangankar 5138b3a271a9SManish Rangankar ret = scsi_init_shared_tag_map(host, MAX_SRBS); 5139b3a271a9SManish Rangankar if (ret) { 5140b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 5141b3a271a9SManish Rangankar "%s: scsi_init_shared_tag_map failed\n", __func__); 5142b3a271a9SManish Rangankar goto probe_failed; 5143b3a271a9SManish Rangankar } 5144b3a271a9SManish Rangankar 5145b3a271a9SManish Rangankar pci_set_drvdata(pdev, ha); 5146b3a271a9SManish Rangankar 5147b3a271a9SManish Rangankar ret = scsi_add_host(host, &pdev->dev); 5148b3a271a9SManish Rangankar if (ret) 5149b3a271a9SManish Rangankar goto probe_failed; 5150b3a271a9SManish Rangankar 5151f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 5152f4f5df23SVikas Chaudhary (void) qla4_8xxx_get_flash_info(ha); 5153f4f5df23SVikas Chaudhary 5154afaf5a2dSDavid Somayajulu /* 5155afaf5a2dSDavid Somayajulu * Initialize the Host adapter request/response queues and 5156afaf5a2dSDavid Somayajulu * firmware 5157afaf5a2dSDavid Somayajulu * NOTE: interrupts enabled upon successful completion 5158afaf5a2dSDavid Somayajulu */ 515913483730SMike Christie status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 5160f4f5df23SVikas Chaudhary while ((!test_bit(AF_ONLINE, &ha->flags)) && 5161f4f5df23SVikas Chaudhary init_retry_count++ < MAX_INIT_RETRIES) { 5162f9880e76SPrasanna Mumbai 5163f9880e76SPrasanna Mumbai if (is_qla8022(ha)) { 5164f8086f4fSVikas Chaudhary qla4_82xx_idc_lock(ha); 5165f8086f4fSVikas Chaudhary dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 5166f8086f4fSVikas Chaudhary qla4_82xx_idc_unlock(ha); 5167de8c72daSVikas Chaudhary if (dev_state == QLA8XXX_DEV_FAILED) { 5168f9880e76SPrasanna Mumbai ql4_printk(KERN_WARNING, ha, "%s: don't retry " 5169f9880e76SPrasanna Mumbai "initialize adapter. H/W is in failed state\n", 5170f9880e76SPrasanna Mumbai __func__); 5171f9880e76SPrasanna Mumbai break; 5172f9880e76SPrasanna Mumbai } 5173f9880e76SPrasanna Mumbai } 5174afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: retrying adapter initialization " 5175afaf5a2dSDavid Somayajulu "(%d)\n", __func__, init_retry_count)); 5176f4f5df23SVikas Chaudhary 5177f4f5df23SVikas Chaudhary if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 5178f4f5df23SVikas Chaudhary continue; 5179f4f5df23SVikas Chaudhary 518013483730SMike Christie status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 5181afaf5a2dSDavid Somayajulu } 5182f4f5df23SVikas Chaudhary 5183f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags)) { 5184c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 5185afaf5a2dSDavid Somayajulu 5186fe998527SLalit Chandivade if (is_qla8022(ha) && ql4xdontresethba) { 5187fe998527SLalit Chandivade /* Put the device in failed state. */ 5188fe998527SLalit Chandivade DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 5189f8086f4fSVikas Chaudhary qla4_82xx_idc_lock(ha); 5190f8086f4fSVikas Chaudhary qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 5191de8c72daSVikas Chaudhary QLA8XXX_DEV_FAILED); 5192f8086f4fSVikas Chaudhary qla4_82xx_idc_unlock(ha); 5193fe998527SLalit Chandivade } 5194afaf5a2dSDavid Somayajulu ret = -ENODEV; 5195b3a271a9SManish Rangankar goto remove_host; 5196afaf5a2dSDavid Somayajulu } 5197afaf5a2dSDavid Somayajulu 5198afaf5a2dSDavid Somayajulu /* Startup the kernel thread for this host adapter. */ 5199afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: Starting kernel thread for " 5200afaf5a2dSDavid Somayajulu "qla4xxx_dpc\n", __func__)); 5201afaf5a2dSDavid Somayajulu sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 5202afaf5a2dSDavid Somayajulu ha->dpc_thread = create_singlethread_workqueue(buf); 5203afaf5a2dSDavid Somayajulu if (!ha->dpc_thread) { 5204c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 5205afaf5a2dSDavid Somayajulu ret = -ENODEV; 5206b3a271a9SManish Rangankar goto remove_host; 5207afaf5a2dSDavid Somayajulu } 5208c4028958SDavid Howells INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 5209afaf5a2dSDavid Somayajulu 5210b3a271a9SManish Rangankar sprintf(buf, "qla4xxx_%lu_task", ha->host_no); 5211b3a271a9SManish Rangankar ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1); 5212b3a271a9SManish Rangankar if (!ha->task_wq) { 5213b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 5214b3a271a9SManish Rangankar ret = -ENODEV; 5215b3a271a9SManish Rangankar goto remove_host; 5216b3a271a9SManish Rangankar } 5217b3a271a9SManish Rangankar 5218f4f5df23SVikas Chaudhary /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc 5219f4f5df23SVikas Chaudhary * (which is called indirectly by qla4xxx_initialize_adapter), 5220f4f5df23SVikas Chaudhary * so that irqs will be registered after crbinit but before 5221f4f5df23SVikas Chaudhary * mbx_intr_enable. 5222f4f5df23SVikas Chaudhary */ 5223f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 5224f4f5df23SVikas Chaudhary ret = qla4xxx_request_irqs(ha); 5225afaf5a2dSDavid Somayajulu if (ret) { 5226f4f5df23SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to reserve " 5227f4f5df23SVikas Chaudhary "interrupt %d already in use.\n", pdev->irq); 5228b3a271a9SManish Rangankar goto remove_host; 5229afaf5a2dSDavid Somayajulu } 5230f4f5df23SVikas Chaudhary } 5231afaf5a2dSDavid Somayajulu 52322232be0dSLalit Chandivade pci_save_state(ha->pdev); 5233f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 5234afaf5a2dSDavid Somayajulu 5235afaf5a2dSDavid Somayajulu /* Start timer thread. */ 5236afaf5a2dSDavid Somayajulu qla4xxx_start_timer(ha, qla4xxx_timer, 1); 5237afaf5a2dSDavid Somayajulu 5238afaf5a2dSDavid Somayajulu set_bit(AF_INIT_DONE, &ha->flags); 5239afaf5a2dSDavid Somayajulu 5240068237c8STej Parkash qla4_8xxx_alloc_sysfs_attr(ha); 5241068237c8STej Parkash 5242afaf5a2dSDavid Somayajulu printk(KERN_INFO 5243afaf5a2dSDavid Somayajulu " QLogic iSCSI HBA Driver version: %s\n" 5244afaf5a2dSDavid Somayajulu " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 5245afaf5a2dSDavid Somayajulu qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 5246afaf5a2dSDavid Somayajulu ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 5247afaf5a2dSDavid Somayajulu ha->patch_number, ha->build_number); 5248ed1086e0SVikas Chaudhary 52492a991c21SManish Rangankar if (qla4xxx_setup_boot_info(ha)) 52503573bfb2SVikas Chaudhary ql4_printk(KERN_ERR, ha, 52513573bfb2SVikas Chaudhary "%s: No iSCSI boot target configured\n", __func__); 52522a991c21SManish Rangankar 525313483730SMike Christie /* Perform the build ddb list and login to each */ 525413483730SMike Christie qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 525513483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 525613483730SMike Christie 525713483730SMike Christie qla4xxx_create_chap_list(ha); 525813483730SMike Christie 5259ed1086e0SVikas Chaudhary qla4xxx_create_ifaces(ha); 5260afaf5a2dSDavid Somayajulu return 0; 5261afaf5a2dSDavid Somayajulu 5262b3a271a9SManish Rangankar remove_host: 5263b3a271a9SManish Rangankar scsi_remove_host(ha->host); 5264b3a271a9SManish Rangankar 5265afaf5a2dSDavid Somayajulu probe_failed: 5266afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 5267f4f5df23SVikas Chaudhary 5268f4f5df23SVikas Chaudhary probe_failed_ioconfig: 52692232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 5270afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 5271afaf5a2dSDavid Somayajulu 5272afaf5a2dSDavid Somayajulu probe_disable_device: 5273afaf5a2dSDavid Somayajulu pci_disable_device(pdev); 5274afaf5a2dSDavid Somayajulu 5275afaf5a2dSDavid Somayajulu return ret; 5276afaf5a2dSDavid Somayajulu } 5277afaf5a2dSDavid Somayajulu 5278afaf5a2dSDavid Somayajulu /** 52797eece5a0SKaren Higgins * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 52807eece5a0SKaren Higgins * @ha: pointer to adapter structure 52817eece5a0SKaren Higgins * 52827eece5a0SKaren Higgins * Mark the other ISP-4xxx port to indicate that the driver is being removed, 52837eece5a0SKaren Higgins * so that the other port will not re-initialize while in the process of 52847eece5a0SKaren Higgins * removing the ha due to driver unload or hba hotplug. 52857eece5a0SKaren Higgins **/ 52867eece5a0SKaren Higgins static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 52877eece5a0SKaren Higgins { 52887eece5a0SKaren Higgins struct scsi_qla_host *other_ha = NULL; 52897eece5a0SKaren Higgins struct pci_dev *other_pdev = NULL; 52907eece5a0SKaren Higgins int fn = ISP4XXX_PCI_FN_2; 52917eece5a0SKaren Higgins 52927eece5a0SKaren Higgins /*iscsi function numbers for ISP4xxx is 1 and 3*/ 52937eece5a0SKaren Higgins if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 52947eece5a0SKaren Higgins fn = ISP4XXX_PCI_FN_1; 52957eece5a0SKaren Higgins 52967eece5a0SKaren Higgins other_pdev = 52977eece5a0SKaren Higgins pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 52987eece5a0SKaren Higgins ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 52997eece5a0SKaren Higgins fn)); 53007eece5a0SKaren Higgins 53017eece5a0SKaren Higgins /* Get other_ha if other_pdev is valid and state is enable*/ 53027eece5a0SKaren Higgins if (other_pdev) { 53037eece5a0SKaren Higgins if (atomic_read(&other_pdev->enable_cnt)) { 53047eece5a0SKaren Higgins other_ha = pci_get_drvdata(other_pdev); 53057eece5a0SKaren Higgins if (other_ha) { 53067eece5a0SKaren Higgins set_bit(AF_HA_REMOVAL, &other_ha->flags); 53077eece5a0SKaren Higgins DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 53087eece5a0SKaren Higgins "Prevent %s reinit\n", __func__, 53097eece5a0SKaren Higgins dev_name(&other_ha->pdev->dev))); 53107eece5a0SKaren Higgins } 53117eece5a0SKaren Higgins } 53127eece5a0SKaren Higgins pci_dev_put(other_pdev); 53137eece5a0SKaren Higgins } 53147eece5a0SKaren Higgins } 53157eece5a0SKaren Higgins 531613483730SMike Christie static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 531713483730SMike Christie { 531813483730SMike Christie struct ddb_entry *ddb_entry; 531913483730SMike Christie int options; 532013483730SMike Christie int idx; 532113483730SMike Christie 532213483730SMike Christie for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 532313483730SMike Christie 532413483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 532513483730SMike Christie if ((ddb_entry != NULL) && 532613483730SMike Christie (ddb_entry->ddb_type == FLASH_DDB)) { 532713483730SMike Christie 532813483730SMike Christie options = LOGOUT_OPTION_CLOSE_SESSION; 532913483730SMike Christie if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) 533013483730SMike Christie == QLA_ERROR) 533113483730SMike Christie ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", 533213483730SMike Christie __func__); 533313483730SMike Christie 533413483730SMike Christie qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 533513483730SMike Christie /* 533613483730SMike Christie * we have decremented the reference count of the driver 533713483730SMike Christie * when we setup the session to have the driver unload 533813483730SMike Christie * to be seamless without actually destroying the 533913483730SMike Christie * session 534013483730SMike Christie **/ 534113483730SMike Christie try_module_get(qla4xxx_iscsi_transport.owner); 534213483730SMike Christie iscsi_destroy_endpoint(ddb_entry->conn->ep); 534313483730SMike Christie qla4xxx_free_ddb(ha, ddb_entry); 534413483730SMike Christie iscsi_session_teardown(ddb_entry->sess); 534513483730SMike Christie } 534613483730SMike Christie } 534713483730SMike Christie } 53487eece5a0SKaren Higgins /** 5349afaf5a2dSDavid Somayajulu * qla4xxx_remove_adapter - calback function to remove adapter. 5350afaf5a2dSDavid Somayajulu * @pci_dev: PCI device pointer 5351afaf5a2dSDavid Somayajulu **/ 5352afaf5a2dSDavid Somayajulu static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) 5353afaf5a2dSDavid Somayajulu { 5354afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 5355afaf5a2dSDavid Somayajulu 5356afaf5a2dSDavid Somayajulu ha = pci_get_drvdata(pdev); 5357afaf5a2dSDavid Somayajulu 53587eece5a0SKaren Higgins if (!is_qla8022(ha)) 53597eece5a0SKaren Higgins qla4xxx_prevent_other_port_reinit(ha); 5360bee4fe8eSDavid C Somayajulu 5361ed1086e0SVikas Chaudhary /* destroy iface from sysfs */ 5362ed1086e0SVikas Chaudhary qla4xxx_destroy_ifaces(ha); 5363ed1086e0SVikas Chaudhary 536413483730SMike Christie if ((!ql4xdisablesysfsboot) && ha->boot_kset) 53652a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 53662a991c21SManish Rangankar 536713483730SMike Christie qla4xxx_destroy_fw_ddb_session(ha); 5368068237c8STej Parkash qla4_8xxx_free_sysfs_attr(ha); 536913483730SMike Christie 5370afaf5a2dSDavid Somayajulu scsi_remove_host(ha->host); 5371afaf5a2dSDavid Somayajulu 5372afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 5373afaf5a2dSDavid Somayajulu 5374afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 5375afaf5a2dSDavid Somayajulu 53762232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 5377f4f5df23SVikas Chaudhary pci_disable_device(pdev); 5378afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, NULL); 5379afaf5a2dSDavid Somayajulu } 5380afaf5a2dSDavid Somayajulu 5381afaf5a2dSDavid Somayajulu /** 5382afaf5a2dSDavid Somayajulu * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 5383afaf5a2dSDavid Somayajulu * @ha: HA context 5384afaf5a2dSDavid Somayajulu * 5385afaf5a2dSDavid Somayajulu * At exit, the @ha's flags.enable_64bit_addressing set to indicated 5386afaf5a2dSDavid Somayajulu * supported addressing method. 5387afaf5a2dSDavid Somayajulu */ 538847975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 5389afaf5a2dSDavid Somayajulu { 5390afaf5a2dSDavid Somayajulu int retval; 5391afaf5a2dSDavid Somayajulu 5392afaf5a2dSDavid Somayajulu /* Update our PCI device dma_mask for full 64 bit mask */ 53936a35528aSYang Hongyang if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 53946a35528aSYang Hongyang if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 5395afaf5a2dSDavid Somayajulu dev_dbg(&ha->pdev->dev, 5396afaf5a2dSDavid Somayajulu "Failed to set 64 bit PCI consistent mask; " 5397afaf5a2dSDavid Somayajulu "using 32 bit.\n"); 5398afaf5a2dSDavid Somayajulu retval = pci_set_consistent_dma_mask(ha->pdev, 5399284901a9SYang Hongyang DMA_BIT_MASK(32)); 5400afaf5a2dSDavid Somayajulu } 5401afaf5a2dSDavid Somayajulu } else 5402284901a9SYang Hongyang retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 5403afaf5a2dSDavid Somayajulu } 5404afaf5a2dSDavid Somayajulu 5405afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *sdev) 5406afaf5a2dSDavid Somayajulu { 5407b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 5408b3a271a9SManish Rangankar struct iscsi_session *sess; 5409b3a271a9SManish Rangankar struct ddb_entry *ddb; 54108bb4033dSVikas Chaudhary int queue_depth = QL4_DEF_QDEPTH; 5411afaf5a2dSDavid Somayajulu 5412b3a271a9SManish Rangankar cls_sess = starget_to_session(sdev->sdev_target); 5413b3a271a9SManish Rangankar sess = cls_sess->dd_data; 5414b3a271a9SManish Rangankar ddb = sess->dd_data; 5415b3a271a9SManish Rangankar 5416afaf5a2dSDavid Somayajulu sdev->hostdata = ddb; 5417afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 54188bb4033dSVikas Chaudhary 54198bb4033dSVikas Chaudhary if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 54208bb4033dSVikas Chaudhary queue_depth = ql4xmaxqdepth; 54218bb4033dSVikas Chaudhary 54228bb4033dSVikas Chaudhary scsi_activate_tcq(sdev, queue_depth); 5423afaf5a2dSDavid Somayajulu return 0; 5424afaf5a2dSDavid Somayajulu } 5425afaf5a2dSDavid Somayajulu 5426afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *sdev) 5427afaf5a2dSDavid Somayajulu { 5428afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 5429afaf5a2dSDavid Somayajulu return 0; 5430afaf5a2dSDavid Somayajulu } 5431afaf5a2dSDavid Somayajulu 5432afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev) 5433afaf5a2dSDavid Somayajulu { 5434afaf5a2dSDavid Somayajulu scsi_deactivate_tcq(sdev, 1); 5435afaf5a2dSDavid Somayajulu } 5436afaf5a2dSDavid Somayajulu 5437f7b4aa63STej Parkash static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 5438f7b4aa63STej Parkash int reason) 5439f7b4aa63STej Parkash { 5440f7b4aa63STej Parkash if (!ql4xqfulltracking) 5441f7b4aa63STej Parkash return -EOPNOTSUPP; 5442f7b4aa63STej Parkash 5443f7b4aa63STej Parkash return iscsi_change_queue_depth(sdev, qdepth, reason); 5444f7b4aa63STej Parkash } 5445f7b4aa63STej Parkash 5446afaf5a2dSDavid Somayajulu /** 5447afaf5a2dSDavid Somayajulu * qla4xxx_del_from_active_array - returns an active srb 5448afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 5449fd589a8fSAnand Gadiyar * @index: index into the active_array 5450afaf5a2dSDavid Somayajulu * 5451afaf5a2dSDavid Somayajulu * This routine removes and returns the srb at the specified index 5452afaf5a2dSDavid Somayajulu **/ 5453f4f5df23SVikas Chaudhary struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 5454f4f5df23SVikas Chaudhary uint32_t index) 5455afaf5a2dSDavid Somayajulu { 5456afaf5a2dSDavid Somayajulu struct srb *srb = NULL; 54575369887aSVikas Chaudhary struct scsi_cmnd *cmd = NULL; 5458afaf5a2dSDavid Somayajulu 54595369887aSVikas Chaudhary cmd = scsi_host_find_tag(ha->host, index); 54605369887aSVikas Chaudhary if (!cmd) 5461afaf5a2dSDavid Somayajulu return srb; 5462afaf5a2dSDavid Somayajulu 54635369887aSVikas Chaudhary srb = (struct srb *)CMD_SP(cmd); 54645369887aSVikas Chaudhary if (!srb) 5465afaf5a2dSDavid Somayajulu return srb; 5466afaf5a2dSDavid Somayajulu 5467afaf5a2dSDavid Somayajulu /* update counters */ 5468afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 5469afaf5a2dSDavid Somayajulu ha->req_q_count += srb->iocb_cnt; 5470afaf5a2dSDavid Somayajulu ha->iocb_cnt -= srb->iocb_cnt; 5471afaf5a2dSDavid Somayajulu if (srb->cmd) 54725369887aSVikas Chaudhary srb->cmd->host_scribble = 54735369887aSVikas Chaudhary (unsigned char *)(unsigned long) MAX_SRBS; 5474afaf5a2dSDavid Somayajulu } 5475afaf5a2dSDavid Somayajulu return srb; 5476afaf5a2dSDavid Somayajulu } 5477afaf5a2dSDavid Somayajulu 5478afaf5a2dSDavid Somayajulu /** 5479afaf5a2dSDavid Somayajulu * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 548009a0f719SVikas Chaudhary * @ha: Pointer to host adapter structure. 5481afaf5a2dSDavid Somayajulu * @cmd: Scsi Command to wait on. 5482afaf5a2dSDavid Somayajulu * 5483afaf5a2dSDavid Somayajulu * This routine waits for the command to be returned by the Firmware 5484afaf5a2dSDavid Somayajulu * for some max time. 5485afaf5a2dSDavid Somayajulu **/ 5486afaf5a2dSDavid Somayajulu static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 5487afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd) 5488afaf5a2dSDavid Somayajulu { 5489afaf5a2dSDavid Somayajulu int done = 0; 5490afaf5a2dSDavid Somayajulu struct srb *rp; 5491afaf5a2dSDavid Somayajulu uint32_t max_wait_time = EH_WAIT_CMD_TOV; 54922232be0dSLalit Chandivade int ret = SUCCESS; 54932232be0dSLalit Chandivade 54942232be0dSLalit Chandivade /* Dont wait on command if PCI error is being handled 54952232be0dSLalit Chandivade * by PCI AER driver 54962232be0dSLalit Chandivade */ 54972232be0dSLalit Chandivade if (unlikely(pci_channel_offline(ha->pdev)) || 54982232be0dSLalit Chandivade (test_bit(AF_EEH_BUSY, &ha->flags))) { 54992232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 55002232be0dSLalit Chandivade ha->host_no, __func__); 55012232be0dSLalit Chandivade return ret; 55022232be0dSLalit Chandivade } 5503afaf5a2dSDavid Somayajulu 5504afaf5a2dSDavid Somayajulu do { 5505afaf5a2dSDavid Somayajulu /* Checking to see if its returned to OS */ 55065369887aSVikas Chaudhary rp = (struct srb *) CMD_SP(cmd); 5507afaf5a2dSDavid Somayajulu if (rp == NULL) { 5508afaf5a2dSDavid Somayajulu done++; 5509afaf5a2dSDavid Somayajulu break; 5510afaf5a2dSDavid Somayajulu } 5511afaf5a2dSDavid Somayajulu 5512afaf5a2dSDavid Somayajulu msleep(2000); 5513afaf5a2dSDavid Somayajulu } while (max_wait_time--); 5514afaf5a2dSDavid Somayajulu 5515afaf5a2dSDavid Somayajulu return done; 5516afaf5a2dSDavid Somayajulu } 5517afaf5a2dSDavid Somayajulu 5518afaf5a2dSDavid Somayajulu /** 5519afaf5a2dSDavid Somayajulu * qla4xxx_wait_for_hba_online - waits for HBA to come online 5520afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 5521afaf5a2dSDavid Somayajulu **/ 5522afaf5a2dSDavid Somayajulu static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 5523afaf5a2dSDavid Somayajulu { 5524afaf5a2dSDavid Somayajulu unsigned long wait_online; 5525afaf5a2dSDavid Somayajulu 5526f581a3f7SVikas Chaudhary wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 5527afaf5a2dSDavid Somayajulu while (time_before(jiffies, wait_online)) { 5528afaf5a2dSDavid Somayajulu 5529afaf5a2dSDavid Somayajulu if (adapter_up(ha)) 5530afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 5531afaf5a2dSDavid Somayajulu 5532afaf5a2dSDavid Somayajulu msleep(2000); 5533afaf5a2dSDavid Somayajulu } 5534afaf5a2dSDavid Somayajulu 5535afaf5a2dSDavid Somayajulu return QLA_ERROR; 5536afaf5a2dSDavid Somayajulu } 5537afaf5a2dSDavid Somayajulu 5538afaf5a2dSDavid Somayajulu /** 5539ce545039SMike Christie * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 5540fd589a8fSAnand Gadiyar * @ha: pointer to HBA 5541afaf5a2dSDavid Somayajulu * @t: target id 5542afaf5a2dSDavid Somayajulu * @l: lun id 5543afaf5a2dSDavid Somayajulu * 5544afaf5a2dSDavid Somayajulu * This function waits for all outstanding commands to a lun to complete. It 5545afaf5a2dSDavid Somayajulu * returns 0 if all pending commands are returned and 1 otherwise. 5546afaf5a2dSDavid Somayajulu **/ 5547ce545039SMike Christie static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 5548ce545039SMike Christie struct scsi_target *stgt, 5549ce545039SMike Christie struct scsi_device *sdev) 5550afaf5a2dSDavid Somayajulu { 5551afaf5a2dSDavid Somayajulu int cnt; 5552afaf5a2dSDavid Somayajulu int status = 0; 5553afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 5554afaf5a2dSDavid Somayajulu 5555afaf5a2dSDavid Somayajulu /* 5556ce545039SMike Christie * Waiting for all commands for the designated target or dev 5557ce545039SMike Christie * in the active array 5558afaf5a2dSDavid Somayajulu */ 5559afaf5a2dSDavid Somayajulu for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 5560afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, cnt); 5561ce545039SMike Christie if (cmd && stgt == scsi_target(cmd->device) && 5562ce545039SMike Christie (!sdev || sdev == cmd->device)) { 5563afaf5a2dSDavid Somayajulu if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 5564afaf5a2dSDavid Somayajulu status++; 5565afaf5a2dSDavid Somayajulu break; 5566afaf5a2dSDavid Somayajulu } 5567afaf5a2dSDavid Somayajulu } 5568afaf5a2dSDavid Somayajulu } 5569afaf5a2dSDavid Somayajulu return status; 5570afaf5a2dSDavid Somayajulu } 5571afaf5a2dSDavid Somayajulu 5572afaf5a2dSDavid Somayajulu /** 557309a0f719SVikas Chaudhary * qla4xxx_eh_abort - callback for abort task. 557409a0f719SVikas Chaudhary * @cmd: Pointer to Linux's SCSI command structure 557509a0f719SVikas Chaudhary * 557609a0f719SVikas Chaudhary * This routine is called by the Linux OS to abort the specified 557709a0f719SVikas Chaudhary * command. 557809a0f719SVikas Chaudhary **/ 557909a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 558009a0f719SVikas Chaudhary { 558109a0f719SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 558209a0f719SVikas Chaudhary unsigned int id = cmd->device->id; 558309a0f719SVikas Chaudhary unsigned int lun = cmd->device->lun; 558492b3e5bbSMike Christie unsigned long flags; 558509a0f719SVikas Chaudhary struct srb *srb = NULL; 558609a0f719SVikas Chaudhary int ret = SUCCESS; 558709a0f719SVikas Chaudhary int wait = 0; 558809a0f719SVikas Chaudhary 5589c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 55905cd049a5SChristoph Hellwig "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 55915cd049a5SChristoph Hellwig ha->host_no, id, lun, cmd); 559209a0f719SVikas Chaudhary 559392b3e5bbSMike Christie spin_lock_irqsave(&ha->hardware_lock, flags); 559409a0f719SVikas Chaudhary srb = (struct srb *) CMD_SP(cmd); 559592b3e5bbSMike Christie if (!srb) { 559692b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 559709a0f719SVikas Chaudhary return SUCCESS; 559892b3e5bbSMike Christie } 559909a0f719SVikas Chaudhary kref_get(&srb->srb_ref); 560092b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 560109a0f719SVikas Chaudhary 560209a0f719SVikas Chaudhary if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 560309a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 560409a0f719SVikas Chaudhary ha->host_no, id, lun)); 560509a0f719SVikas Chaudhary ret = FAILED; 560609a0f719SVikas Chaudhary } else { 560709a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 560809a0f719SVikas Chaudhary ha->host_no, id, lun)); 560909a0f719SVikas Chaudhary wait = 1; 561009a0f719SVikas Chaudhary } 561109a0f719SVikas Chaudhary 561209a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 561309a0f719SVikas Chaudhary 561409a0f719SVikas Chaudhary /* Wait for command to complete */ 561509a0f719SVikas Chaudhary if (wait) { 561609a0f719SVikas Chaudhary if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 561709a0f719SVikas Chaudhary DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 561809a0f719SVikas Chaudhary ha->host_no, id, lun)); 561909a0f719SVikas Chaudhary ret = FAILED; 562009a0f719SVikas Chaudhary } 562109a0f719SVikas Chaudhary } 562209a0f719SVikas Chaudhary 5623c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 562409a0f719SVikas Chaudhary "scsi%ld:%d:%d: Abort command - %s\n", 562525985edcSLucas De Marchi ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 562609a0f719SVikas Chaudhary 562709a0f719SVikas Chaudhary return ret; 562809a0f719SVikas Chaudhary } 562909a0f719SVikas Chaudhary 563009a0f719SVikas Chaudhary /** 5631afaf5a2dSDavid Somayajulu * qla4xxx_eh_device_reset - callback for target reset. 5632afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 5633afaf5a2dSDavid Somayajulu * 5634afaf5a2dSDavid Somayajulu * This routine is called by the Linux OS to reset all luns on the 5635afaf5a2dSDavid Somayajulu * specified target. 5636afaf5a2dSDavid Somayajulu **/ 5637afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 5638afaf5a2dSDavid Somayajulu { 5639afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5640afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 5641afaf5a2dSDavid Somayajulu int ret = FAILED, stat; 5642afaf5a2dSDavid Somayajulu 5643612f7348SKaren Higgins if (!ddb_entry) 5644afaf5a2dSDavid Somayajulu return ret; 5645afaf5a2dSDavid Somayajulu 5646c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 5647c01be6dcSMike Christie if (ret) 5648c01be6dcSMike Christie return ret; 5649c01be6dcSMike Christie ret = FAILED; 5650c01be6dcSMike Christie 5651c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5652afaf5a2dSDavid Somayajulu "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 5653afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 5654afaf5a2dSDavid Somayajulu 5655afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_INFO 5656afaf5a2dSDavid Somayajulu "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 5657afaf5a2dSDavid Somayajulu "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 5658242f9dcbSJens Axboe cmd, jiffies, cmd->request->timeout / HZ, 5659afaf5a2dSDavid Somayajulu ha->dpc_flags, cmd->result, cmd->allowed)); 5660afaf5a2dSDavid Somayajulu 5661afaf5a2dSDavid Somayajulu /* FIXME: wait for hba to go online */ 5662afaf5a2dSDavid Somayajulu stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 5663afaf5a2dSDavid Somayajulu if (stat != QLA_SUCCESS) { 5664c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 5665afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 5666afaf5a2dSDavid Somayajulu } 5667afaf5a2dSDavid Somayajulu 5668ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5669ce545039SMike Christie cmd->device)) { 5670c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5671afaf5a2dSDavid Somayajulu "DEVICE RESET FAILED - waiting for " 5672afaf5a2dSDavid Somayajulu "commands.\n"); 5673afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 5674afaf5a2dSDavid Somayajulu } 5675afaf5a2dSDavid Somayajulu 56769d562913SDavid C Somayajulu /* Send marker. */ 56779d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 56789d562913SDavid C Somayajulu MM_LUN_RESET) != QLA_SUCCESS) 56799d562913SDavid C Somayajulu goto eh_dev_reset_done; 56809d562913SDavid C Somayajulu 5681c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5682afaf5a2dSDavid Somayajulu "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 5683afaf5a2dSDavid Somayajulu ha->host_no, cmd->device->channel, cmd->device->id, 5684afaf5a2dSDavid Somayajulu cmd->device->lun); 5685afaf5a2dSDavid Somayajulu 5686afaf5a2dSDavid Somayajulu ret = SUCCESS; 5687afaf5a2dSDavid Somayajulu 5688afaf5a2dSDavid Somayajulu eh_dev_reset_done: 5689afaf5a2dSDavid Somayajulu 5690afaf5a2dSDavid Somayajulu return ret; 5691afaf5a2dSDavid Somayajulu } 5692afaf5a2dSDavid Somayajulu 5693afaf5a2dSDavid Somayajulu /** 5694ce545039SMike Christie * qla4xxx_eh_target_reset - callback for target reset. 5695ce545039SMike Christie * @cmd: Pointer to Linux's SCSI command structure 5696ce545039SMike Christie * 5697ce545039SMike Christie * This routine is called by the Linux OS to reset the target. 5698ce545039SMike Christie **/ 5699ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 5700ce545039SMike Christie { 5701ce545039SMike Christie struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5702ce545039SMike Christie struct ddb_entry *ddb_entry = cmd->device->hostdata; 5703c01be6dcSMike Christie int stat, ret; 5704ce545039SMike Christie 5705ce545039SMike Christie if (!ddb_entry) 5706ce545039SMike Christie return FAILED; 5707ce545039SMike Christie 5708c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 5709c01be6dcSMike Christie if (ret) 5710c01be6dcSMike Christie return ret; 5711c01be6dcSMike Christie 5712ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5713ce545039SMike Christie "WARM TARGET RESET ISSUED.\n"); 5714ce545039SMike Christie 5715ce545039SMike Christie DEBUG2(printk(KERN_INFO 5716ce545039SMike Christie "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 5717ce545039SMike Christie "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 5718242f9dcbSJens Axboe ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 5719ce545039SMike Christie ha->dpc_flags, cmd->result, cmd->allowed)); 5720ce545039SMike Christie 5721ce545039SMike Christie stat = qla4xxx_reset_target(ha, ddb_entry); 5722ce545039SMike Christie if (stat != QLA_SUCCESS) { 5723ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5724ce545039SMike Christie "WARM TARGET RESET FAILED.\n"); 5725ce545039SMike Christie return FAILED; 5726ce545039SMike Christie } 5727ce545039SMike Christie 5728ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5729ce545039SMike Christie NULL)) { 5730ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5731ce545039SMike Christie "WARM TARGET DEVICE RESET FAILED - " 5732ce545039SMike Christie "waiting for commands.\n"); 5733ce545039SMike Christie return FAILED; 5734ce545039SMike Christie } 5735ce545039SMike Christie 57369d562913SDavid C Somayajulu /* Send marker. */ 57379d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 57389d562913SDavid C Somayajulu MM_TGT_WARM_RESET) != QLA_SUCCESS) { 57399d562913SDavid C Somayajulu starget_printk(KERN_INFO, scsi_target(cmd->device), 57409d562913SDavid C Somayajulu "WARM TARGET DEVICE RESET FAILED - " 57419d562913SDavid C Somayajulu "marker iocb failed.\n"); 57429d562913SDavid C Somayajulu return FAILED; 57439d562913SDavid C Somayajulu } 57449d562913SDavid C Somayajulu 5745ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5746ce545039SMike Christie "WARM TARGET RESET SUCCEEDED.\n"); 5747ce545039SMike Christie return SUCCESS; 5748ce545039SMike Christie } 5749ce545039SMike Christie 5750ce545039SMike Christie /** 57518a288960SSarang Radke * qla4xxx_is_eh_active - check if error handler is running 57528a288960SSarang Radke * @shost: Pointer to SCSI Host struct 57538a288960SSarang Radke * 57548a288960SSarang Radke * This routine finds that if reset host is called in EH 57558a288960SSarang Radke * scenario or from some application like sg_reset 57568a288960SSarang Radke **/ 57578a288960SSarang Radke static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 57588a288960SSarang Radke { 57598a288960SSarang Radke if (shost->shost_state == SHOST_RECOVERY) 57608a288960SSarang Radke return 1; 57618a288960SSarang Radke return 0; 57628a288960SSarang Radke } 57638a288960SSarang Radke 57648a288960SSarang Radke /** 5765afaf5a2dSDavid Somayajulu * qla4xxx_eh_host_reset - kernel callback 5766afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 5767afaf5a2dSDavid Somayajulu * 5768afaf5a2dSDavid Somayajulu * This routine is invoked by the Linux kernel to perform fatal error 5769afaf5a2dSDavid Somayajulu * recovery on the specified adapter. 5770afaf5a2dSDavid Somayajulu **/ 5771afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 5772afaf5a2dSDavid Somayajulu { 5773afaf5a2dSDavid Somayajulu int return_status = FAILED; 5774afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 5775afaf5a2dSDavid Somayajulu 5776b3a271a9SManish Rangankar ha = to_qla_host(cmd->device->host); 5777afaf5a2dSDavid Somayajulu 5778f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 5779f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5780f4f5df23SVikas Chaudhary ha->host_no, __func__)); 57818a288960SSarang Radke 57828a288960SSarang Radke /* Clear outstanding srb in queues */ 57838a288960SSarang Radke if (qla4xxx_is_eh_active(cmd->device->host)) 57848a288960SSarang Radke qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 57858a288960SSarang Radke 5786f4f5df23SVikas Chaudhary return FAILED; 5787f4f5df23SVikas Chaudhary } 5788f4f5df23SVikas Chaudhary 5789c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5790dca05c4cSKaren Higgins "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 5791afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 5792afaf5a2dSDavid Somayajulu 5793afaf5a2dSDavid Somayajulu if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 5794afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 5795afaf5a2dSDavid Somayajulu "DEAD.\n", ha->host_no, cmd->device->channel, 5796afaf5a2dSDavid Somayajulu __func__)); 5797afaf5a2dSDavid Somayajulu 5798afaf5a2dSDavid Somayajulu return FAILED; 5799afaf5a2dSDavid Somayajulu } 5800afaf5a2dSDavid Somayajulu 5801f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 5802f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 5803f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5804f4f5df23SVikas Chaudhary else 5805f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 5806f4f5df23SVikas Chaudhary } 580750a29aecSMike Christie 5808f4f5df23SVikas Chaudhary if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 5809afaf5a2dSDavid Somayajulu return_status = SUCCESS; 5810afaf5a2dSDavid Somayajulu 5811c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 581225985edcSLucas De Marchi return_status == FAILED ? "FAILED" : "SUCCEEDED"); 5813afaf5a2dSDavid Somayajulu 5814afaf5a2dSDavid Somayajulu return return_status; 5815afaf5a2dSDavid Somayajulu } 5816afaf5a2dSDavid Somayajulu 581795d31262SVikas Chaudhary static int qla4xxx_context_reset(struct scsi_qla_host *ha) 581895d31262SVikas Chaudhary { 581995d31262SVikas Chaudhary uint32_t mbox_cmd[MBOX_REG_COUNT]; 582095d31262SVikas Chaudhary uint32_t mbox_sts[MBOX_REG_COUNT]; 582195d31262SVikas Chaudhary struct addr_ctrl_blk_def *acb = NULL; 582295d31262SVikas Chaudhary uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 582395d31262SVikas Chaudhary int rval = QLA_SUCCESS; 582495d31262SVikas Chaudhary dma_addr_t acb_dma; 582595d31262SVikas Chaudhary 582695d31262SVikas Chaudhary acb = dma_alloc_coherent(&ha->pdev->dev, 582795d31262SVikas Chaudhary sizeof(struct addr_ctrl_blk_def), 582895d31262SVikas Chaudhary &acb_dma, GFP_KERNEL); 582995d31262SVikas Chaudhary if (!acb) { 583095d31262SVikas Chaudhary ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 583195d31262SVikas Chaudhary __func__); 583295d31262SVikas Chaudhary rval = -ENOMEM; 583395d31262SVikas Chaudhary goto exit_port_reset; 583495d31262SVikas Chaudhary } 583595d31262SVikas Chaudhary 583695d31262SVikas Chaudhary memset(acb, 0, acb_len); 583795d31262SVikas Chaudhary 583895d31262SVikas Chaudhary rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 583995d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 584095d31262SVikas Chaudhary rval = -EIO; 584195d31262SVikas Chaudhary goto exit_free_acb; 584295d31262SVikas Chaudhary } 584395d31262SVikas Chaudhary 584495d31262SVikas Chaudhary rval = qla4xxx_disable_acb(ha); 584595d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 584695d31262SVikas Chaudhary rval = -EIO; 584795d31262SVikas Chaudhary goto exit_free_acb; 584895d31262SVikas Chaudhary } 584995d31262SVikas Chaudhary 585095d31262SVikas Chaudhary wait_for_completion_timeout(&ha->disable_acb_comp, 585195d31262SVikas Chaudhary DISABLE_ACB_TOV * HZ); 585295d31262SVikas Chaudhary 585395d31262SVikas Chaudhary rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 585495d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 585595d31262SVikas Chaudhary rval = -EIO; 585695d31262SVikas Chaudhary goto exit_free_acb; 585795d31262SVikas Chaudhary } 585895d31262SVikas Chaudhary 585995d31262SVikas Chaudhary exit_free_acb: 586095d31262SVikas Chaudhary dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 586195d31262SVikas Chaudhary acb, acb_dma); 586295d31262SVikas Chaudhary exit_port_reset: 586395d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 586495d31262SVikas Chaudhary rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 586595d31262SVikas Chaudhary return rval; 586695d31262SVikas Chaudhary } 586795d31262SVikas Chaudhary 586895d31262SVikas Chaudhary static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 586995d31262SVikas Chaudhary { 587095d31262SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 587195d31262SVikas Chaudhary int rval = QLA_SUCCESS; 587295d31262SVikas Chaudhary 587395d31262SVikas Chaudhary if (ql4xdontresethba) { 587495d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 587595d31262SVikas Chaudhary __func__)); 587695d31262SVikas Chaudhary rval = -EPERM; 587795d31262SVikas Chaudhary goto exit_host_reset; 587895d31262SVikas Chaudhary } 587995d31262SVikas Chaudhary 588095d31262SVikas Chaudhary rval = qla4xxx_wait_for_hba_online(ha); 588195d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 588295d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unable to reset host " 588395d31262SVikas Chaudhary "adapter\n", __func__)); 588495d31262SVikas Chaudhary rval = -EIO; 588595d31262SVikas Chaudhary goto exit_host_reset; 588695d31262SVikas Chaudhary } 588795d31262SVikas Chaudhary 588895d31262SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 588995d31262SVikas Chaudhary goto recover_adapter; 589095d31262SVikas Chaudhary 589195d31262SVikas Chaudhary switch (reset_type) { 589295d31262SVikas Chaudhary case SCSI_ADAPTER_RESET: 589395d31262SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 589495d31262SVikas Chaudhary break; 589595d31262SVikas Chaudhary case SCSI_FIRMWARE_RESET: 589695d31262SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 589795d31262SVikas Chaudhary if (is_qla8022(ha)) 589895d31262SVikas Chaudhary /* set firmware context reset */ 589995d31262SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, 590095d31262SVikas Chaudhary &ha->dpc_flags); 590195d31262SVikas Chaudhary else { 590295d31262SVikas Chaudhary rval = qla4xxx_context_reset(ha); 590395d31262SVikas Chaudhary goto exit_host_reset; 590495d31262SVikas Chaudhary } 590595d31262SVikas Chaudhary } 590695d31262SVikas Chaudhary break; 590795d31262SVikas Chaudhary } 590895d31262SVikas Chaudhary 590995d31262SVikas Chaudhary recover_adapter: 591095d31262SVikas Chaudhary rval = qla4xxx_recover_adapter(ha); 591195d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 591295d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 591395d31262SVikas Chaudhary __func__)); 591495d31262SVikas Chaudhary rval = -EIO; 591595d31262SVikas Chaudhary } 591695d31262SVikas Chaudhary 591795d31262SVikas Chaudhary exit_host_reset: 591895d31262SVikas Chaudhary return rval; 591995d31262SVikas Chaudhary } 592095d31262SVikas Chaudhary 59212232be0dSLalit Chandivade /* PCI AER driver recovers from all correctable errors w/o 59222232be0dSLalit Chandivade * driver intervention. For uncorrectable errors PCI AER 59232232be0dSLalit Chandivade * driver calls the following device driver's callbacks 59242232be0dSLalit Chandivade * 59252232be0dSLalit Chandivade * - Fatal Errors - link_reset 59262232be0dSLalit Chandivade * - Non-Fatal Errors - driver's pci_error_detected() which 59272232be0dSLalit Chandivade * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 59282232be0dSLalit Chandivade * 59292232be0dSLalit Chandivade * PCI AER driver calls 59302232be0dSLalit Chandivade * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 59312232be0dSLalit Chandivade * returns RECOVERED or NEED_RESET if fw_hung 59322232be0dSLalit Chandivade * NEED_RESET - driver's slot_reset() 59332232be0dSLalit Chandivade * DISCONNECT - device is dead & cannot recover 59342232be0dSLalit Chandivade * RECOVERED - driver's pci_resume() 59352232be0dSLalit Chandivade */ 59362232be0dSLalit Chandivade static pci_ers_result_t 59372232be0dSLalit Chandivade qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 59382232be0dSLalit Chandivade { 59392232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 59402232be0dSLalit Chandivade 59412232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 59422232be0dSLalit Chandivade ha->host_no, __func__, state); 59432232be0dSLalit Chandivade 59442232be0dSLalit Chandivade if (!is_aer_supported(ha)) 59452232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 59462232be0dSLalit Chandivade 59472232be0dSLalit Chandivade switch (state) { 59482232be0dSLalit Chandivade case pci_channel_io_normal: 59492232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 59502232be0dSLalit Chandivade return PCI_ERS_RESULT_CAN_RECOVER; 59512232be0dSLalit Chandivade case pci_channel_io_frozen: 59522232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 59532232be0dSLalit Chandivade qla4xxx_mailbox_premature_completion(ha); 59542232be0dSLalit Chandivade qla4xxx_free_irqs(ha); 59552232be0dSLalit Chandivade pci_disable_device(pdev); 59567b3595dfSVikas Chaudhary /* Return back all IOs */ 59577b3595dfSVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 59582232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 59592232be0dSLalit Chandivade case pci_channel_io_perm_failure: 59602232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 59612232be0dSLalit Chandivade set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 59622232be0dSLalit Chandivade qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 59632232be0dSLalit Chandivade return PCI_ERS_RESULT_DISCONNECT; 59642232be0dSLalit Chandivade } 59652232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 59662232be0dSLalit Chandivade } 59672232be0dSLalit Chandivade 59682232be0dSLalit Chandivade /** 59692232be0dSLalit Chandivade * qla4xxx_pci_mmio_enabled() gets called if 59702232be0dSLalit Chandivade * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 59712232be0dSLalit Chandivade * and read/write to the device still works. 59722232be0dSLalit Chandivade **/ 59732232be0dSLalit Chandivade static pci_ers_result_t 59742232be0dSLalit Chandivade qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 59752232be0dSLalit Chandivade { 59762232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 59772232be0dSLalit Chandivade 59782232be0dSLalit Chandivade if (!is_aer_supported(ha)) 59792232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 59802232be0dSLalit Chandivade 59812232be0dSLalit Chandivade return PCI_ERS_RESULT_RECOVERED; 59822232be0dSLalit Chandivade } 59832232be0dSLalit Chandivade 59847b3595dfSVikas Chaudhary static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 59852232be0dSLalit Chandivade { 59862232be0dSLalit Chandivade uint32_t rval = QLA_ERROR; 59877b3595dfSVikas Chaudhary uint32_t ret = 0; 59882232be0dSLalit Chandivade int fn; 59892232be0dSLalit Chandivade struct pci_dev *other_pdev = NULL; 59902232be0dSLalit Chandivade 59912232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 59922232be0dSLalit Chandivade 59932232be0dSLalit Chandivade set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 59942232be0dSLalit Chandivade 59952232be0dSLalit Chandivade if (test_bit(AF_ONLINE, &ha->flags)) { 59962232be0dSLalit Chandivade clear_bit(AF_ONLINE, &ha->flags); 5997b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 5998b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 59992232be0dSLalit Chandivade qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 60002232be0dSLalit Chandivade } 60012232be0dSLalit Chandivade 60022232be0dSLalit Chandivade fn = PCI_FUNC(ha->pdev->devfn); 60032232be0dSLalit Chandivade while (fn > 0) { 60042232be0dSLalit Chandivade fn--; 60052232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 60062232be0dSLalit Chandivade "func %x\n", ha->host_no, __func__, fn); 60072232be0dSLalit Chandivade /* Get the pci device given the domain, bus, 60082232be0dSLalit Chandivade * slot/function number */ 60092232be0dSLalit Chandivade other_pdev = 60102232be0dSLalit Chandivade pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 60112232be0dSLalit Chandivade ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 60122232be0dSLalit Chandivade fn)); 60132232be0dSLalit Chandivade 60142232be0dSLalit Chandivade if (!other_pdev) 60152232be0dSLalit Chandivade continue; 60162232be0dSLalit Chandivade 60172232be0dSLalit Chandivade if (atomic_read(&other_pdev->enable_cnt)) { 60182232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 60192232be0dSLalit Chandivade "func in enabled state%x\n", ha->host_no, 60202232be0dSLalit Chandivade __func__, fn); 60212232be0dSLalit Chandivade pci_dev_put(other_pdev); 60222232be0dSLalit Chandivade break; 60232232be0dSLalit Chandivade } 60242232be0dSLalit Chandivade pci_dev_put(other_pdev); 60252232be0dSLalit Chandivade } 60262232be0dSLalit Chandivade 60272232be0dSLalit Chandivade /* The first function on the card, the reset owner will 60282232be0dSLalit Chandivade * start & initialize the firmware. The other functions 60292232be0dSLalit Chandivade * on the card will reset the firmware context 60302232be0dSLalit Chandivade */ 60312232be0dSLalit Chandivade if (!fn) { 60322232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 60332232be0dSLalit Chandivade "0x%x is the owner\n", ha->host_no, __func__, 60342232be0dSLalit Chandivade ha->pdev->devfn); 60352232be0dSLalit Chandivade 6036f8086f4fSVikas Chaudhary qla4_82xx_idc_lock(ha); 6037f8086f4fSVikas Chaudhary qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 6038de8c72daSVikas Chaudhary QLA8XXX_DEV_COLD); 60392232be0dSLalit Chandivade 6040f8086f4fSVikas Chaudhary qla4_82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, 60412232be0dSLalit Chandivade QLA82XX_IDC_VERSION); 60422232be0dSLalit Chandivade 6043f8086f4fSVikas Chaudhary qla4_82xx_idc_unlock(ha); 60442232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 604513483730SMike Christie rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 6046f8086f4fSVikas Chaudhary qla4_82xx_idc_lock(ha); 60472232be0dSLalit Chandivade 60482232be0dSLalit Chandivade if (rval != QLA_SUCCESS) { 60492232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 60502232be0dSLalit Chandivade "FAILED\n", ha->host_no, __func__); 60512232be0dSLalit Chandivade qla4_8xxx_clear_drv_active(ha); 6052f8086f4fSVikas Chaudhary qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 6053de8c72daSVikas Chaudhary QLA8XXX_DEV_FAILED); 60542232be0dSLalit Chandivade } else { 60552232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 60562232be0dSLalit Chandivade "READY\n", ha->host_no, __func__); 6057f8086f4fSVikas Chaudhary qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 6058de8c72daSVikas Chaudhary QLA8XXX_DEV_READY); 60592232be0dSLalit Chandivade /* Clear driver state register */ 6060f8086f4fSVikas Chaudhary qla4_82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0); 60612232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 60627b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 60637b3595dfSVikas Chaudhary if (ret) { 60647b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to " 60657b3595dfSVikas Chaudhary "reserve interrupt %d already in use.\n", 60667b3595dfSVikas Chaudhary ha->pdev->irq); 60677b3595dfSVikas Chaudhary rval = QLA_ERROR; 60687b3595dfSVikas Chaudhary } else { 60692232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 60707b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 60717b3595dfSVikas Chaudhary } 60722232be0dSLalit Chandivade } 6073f8086f4fSVikas Chaudhary qla4_82xx_idc_unlock(ha); 60742232be0dSLalit Chandivade } else { 60752232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 60762232be0dSLalit Chandivade "the reset owner\n", ha->host_no, __func__, 60772232be0dSLalit Chandivade ha->pdev->devfn); 6078f8086f4fSVikas Chaudhary if ((qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == 6079de8c72daSVikas Chaudhary QLA8XXX_DEV_READY)) { 60802232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 608113483730SMike Christie rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 60827b3595dfSVikas Chaudhary if (rval == QLA_SUCCESS) { 60837b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 60847b3595dfSVikas Chaudhary if (ret) { 60857b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to" 60867b3595dfSVikas Chaudhary " reserve interrupt %d already in" 60877b3595dfSVikas Chaudhary " use.\n", ha->pdev->irq); 60887b3595dfSVikas Chaudhary rval = QLA_ERROR; 60897b3595dfSVikas Chaudhary } else { 60902232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 60917b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 60927b3595dfSVikas Chaudhary } 60937b3595dfSVikas Chaudhary } 6094f8086f4fSVikas Chaudhary qla4_82xx_idc_lock(ha); 60952232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 6096f8086f4fSVikas Chaudhary qla4_82xx_idc_unlock(ha); 60972232be0dSLalit Chandivade } 60982232be0dSLalit Chandivade } 60992232be0dSLalit Chandivade clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 61002232be0dSLalit Chandivade return rval; 61012232be0dSLalit Chandivade } 61022232be0dSLalit Chandivade 61032232be0dSLalit Chandivade static pci_ers_result_t 61042232be0dSLalit Chandivade qla4xxx_pci_slot_reset(struct pci_dev *pdev) 61052232be0dSLalit Chandivade { 61062232be0dSLalit Chandivade pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 61072232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 61082232be0dSLalit Chandivade int rc; 61092232be0dSLalit Chandivade 61102232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 61112232be0dSLalit Chandivade ha->host_no, __func__); 61122232be0dSLalit Chandivade 61132232be0dSLalit Chandivade if (!is_aer_supported(ha)) 61142232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 61152232be0dSLalit Chandivade 61162232be0dSLalit Chandivade /* Restore the saved state of PCIe device - 61172232be0dSLalit Chandivade * BAR registers, PCI Config space, PCIX, MSI, 61182232be0dSLalit Chandivade * IOV states 61192232be0dSLalit Chandivade */ 61202232be0dSLalit Chandivade pci_restore_state(pdev); 61212232be0dSLalit Chandivade 61222232be0dSLalit Chandivade /* pci_restore_state() clears the saved_state flag of the device 61232232be0dSLalit Chandivade * save restored state which resets saved_state flag 61242232be0dSLalit Chandivade */ 61252232be0dSLalit Chandivade pci_save_state(pdev); 61262232be0dSLalit Chandivade 61272232be0dSLalit Chandivade /* Initialize device or resume if in suspended state */ 61282232be0dSLalit Chandivade rc = pci_enable_device(pdev); 61292232be0dSLalit Chandivade if (rc) { 613025985edcSLucas De Marchi ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 61312232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__); 61322232be0dSLalit Chandivade goto exit_slot_reset; 61332232be0dSLalit Chandivade } 61342232be0dSLalit Chandivade 61357b3595dfSVikas Chaudhary ha->isp_ops->disable_intrs(ha); 61362232be0dSLalit Chandivade 61372232be0dSLalit Chandivade if (is_qla8022(ha)) { 61382232be0dSLalit Chandivade if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 61392232be0dSLalit Chandivade ret = PCI_ERS_RESULT_RECOVERED; 61402232be0dSLalit Chandivade goto exit_slot_reset; 61412232be0dSLalit Chandivade } else 61422232be0dSLalit Chandivade goto exit_slot_reset; 61432232be0dSLalit Chandivade } 61442232be0dSLalit Chandivade 61452232be0dSLalit Chandivade exit_slot_reset: 61462232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 61472232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__, ret); 61482232be0dSLalit Chandivade return ret; 61492232be0dSLalit Chandivade } 61502232be0dSLalit Chandivade 61512232be0dSLalit Chandivade static void 61522232be0dSLalit Chandivade qla4xxx_pci_resume(struct pci_dev *pdev) 61532232be0dSLalit Chandivade { 61542232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 61552232be0dSLalit Chandivade int ret; 61562232be0dSLalit Chandivade 61572232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 61582232be0dSLalit Chandivade ha->host_no, __func__); 61592232be0dSLalit Chandivade 61602232be0dSLalit Chandivade ret = qla4xxx_wait_for_hba_online(ha); 61612232be0dSLalit Chandivade if (ret != QLA_SUCCESS) { 61622232be0dSLalit Chandivade ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 61632232be0dSLalit Chandivade "resume I/O from slot/link_reset\n", ha->host_no, 61642232be0dSLalit Chandivade __func__); 61652232be0dSLalit Chandivade } 61662232be0dSLalit Chandivade 61672232be0dSLalit Chandivade pci_cleanup_aer_uncorrect_error_status(pdev); 61682232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 61692232be0dSLalit Chandivade } 61702232be0dSLalit Chandivade 61712232be0dSLalit Chandivade static struct pci_error_handlers qla4xxx_err_handler = { 61722232be0dSLalit Chandivade .error_detected = qla4xxx_pci_error_detected, 61732232be0dSLalit Chandivade .mmio_enabled = qla4xxx_pci_mmio_enabled, 61742232be0dSLalit Chandivade .slot_reset = qla4xxx_pci_slot_reset, 61752232be0dSLalit Chandivade .resume = qla4xxx_pci_resume, 61762232be0dSLalit Chandivade }; 61772232be0dSLalit Chandivade 6178afaf5a2dSDavid Somayajulu static struct pci_device_id qla4xxx_pci_tbl[] = { 6179afaf5a2dSDavid Somayajulu { 6180afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 6181afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 6182afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 6183afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 6184afaf5a2dSDavid Somayajulu }, 6185afaf5a2dSDavid Somayajulu { 6186afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 6187afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 6188afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 6189afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 6190afaf5a2dSDavid Somayajulu }, 6191d915058fSDavid C Somayajulu { 6192d915058fSDavid C Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 6193d915058fSDavid C Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 6194d915058fSDavid C Somayajulu .subvendor = PCI_ANY_ID, 6195d915058fSDavid C Somayajulu .subdevice = PCI_ANY_ID, 6196d915058fSDavid C Somayajulu }, 6197f4f5df23SVikas Chaudhary { 6198f4f5df23SVikas Chaudhary .vendor = PCI_VENDOR_ID_QLOGIC, 6199f4f5df23SVikas Chaudhary .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 6200f4f5df23SVikas Chaudhary .subvendor = PCI_ANY_ID, 6201f4f5df23SVikas Chaudhary .subdevice = PCI_ANY_ID, 6202f4f5df23SVikas Chaudhary }, 6203afaf5a2dSDavid Somayajulu {0, 0}, 6204afaf5a2dSDavid Somayajulu }; 6205afaf5a2dSDavid Somayajulu MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 6206afaf5a2dSDavid Somayajulu 620747975477SAdrian Bunk static struct pci_driver qla4xxx_pci_driver = { 6208afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 6209afaf5a2dSDavid Somayajulu .id_table = qla4xxx_pci_tbl, 6210afaf5a2dSDavid Somayajulu .probe = qla4xxx_probe_adapter, 6211afaf5a2dSDavid Somayajulu .remove = qla4xxx_remove_adapter, 62122232be0dSLalit Chandivade .err_handler = &qla4xxx_err_handler, 6213afaf5a2dSDavid Somayajulu }; 6214afaf5a2dSDavid Somayajulu 6215afaf5a2dSDavid Somayajulu static int __init qla4xxx_module_init(void) 6216afaf5a2dSDavid Somayajulu { 6217afaf5a2dSDavid Somayajulu int ret; 6218afaf5a2dSDavid Somayajulu 6219afaf5a2dSDavid Somayajulu /* Allocate cache for SRBs. */ 6220afaf5a2dSDavid Somayajulu srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 622120c2df83SPaul Mundt SLAB_HWCACHE_ALIGN, NULL); 6222afaf5a2dSDavid Somayajulu if (srb_cachep == NULL) { 6223afaf5a2dSDavid Somayajulu printk(KERN_ERR 6224afaf5a2dSDavid Somayajulu "%s: Unable to allocate SRB cache..." 6225afaf5a2dSDavid Somayajulu "Failing load!\n", DRIVER_NAME); 6226afaf5a2dSDavid Somayajulu ret = -ENOMEM; 6227afaf5a2dSDavid Somayajulu goto no_srp_cache; 6228afaf5a2dSDavid Somayajulu } 6229afaf5a2dSDavid Somayajulu 6230afaf5a2dSDavid Somayajulu /* Derive version string. */ 6231afaf5a2dSDavid Somayajulu strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 623211010fecSAndrew Vasquez if (ql4xextended_error_logging) 6233afaf5a2dSDavid Somayajulu strcat(qla4xxx_version_str, "-debug"); 6234afaf5a2dSDavid Somayajulu 6235afaf5a2dSDavid Somayajulu qla4xxx_scsi_transport = 6236afaf5a2dSDavid Somayajulu iscsi_register_transport(&qla4xxx_iscsi_transport); 6237afaf5a2dSDavid Somayajulu if (!qla4xxx_scsi_transport){ 6238afaf5a2dSDavid Somayajulu ret = -ENODEV; 6239afaf5a2dSDavid Somayajulu goto release_srb_cache; 6240afaf5a2dSDavid Somayajulu } 6241afaf5a2dSDavid Somayajulu 6242afaf5a2dSDavid Somayajulu ret = pci_register_driver(&qla4xxx_pci_driver); 6243afaf5a2dSDavid Somayajulu if (ret) 6244afaf5a2dSDavid Somayajulu goto unregister_transport; 6245afaf5a2dSDavid Somayajulu 6246afaf5a2dSDavid Somayajulu printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 6247afaf5a2dSDavid Somayajulu return 0; 62485ae16db3SDoug Maxey 6249afaf5a2dSDavid Somayajulu unregister_transport: 6250afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 6251afaf5a2dSDavid Somayajulu release_srb_cache: 6252afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 6253afaf5a2dSDavid Somayajulu no_srp_cache: 6254afaf5a2dSDavid Somayajulu return ret; 6255afaf5a2dSDavid Somayajulu } 6256afaf5a2dSDavid Somayajulu 6257afaf5a2dSDavid Somayajulu static void __exit qla4xxx_module_exit(void) 6258afaf5a2dSDavid Somayajulu { 6259afaf5a2dSDavid Somayajulu pci_unregister_driver(&qla4xxx_pci_driver); 6260afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 6261afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 6262afaf5a2dSDavid Somayajulu } 6263afaf5a2dSDavid Somayajulu 6264afaf5a2dSDavid Somayajulu module_init(qla4xxx_module_init); 6265afaf5a2dSDavid Somayajulu module_exit(qla4xxx_module_exit); 6266afaf5a2dSDavid Somayajulu 6267afaf5a2dSDavid Somayajulu MODULE_AUTHOR("QLogic Corporation"); 6268afaf5a2dSDavid Somayajulu MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 6269afaf5a2dSDavid Somayajulu MODULE_LICENSE("GPL"); 6270afaf5a2dSDavid Somayajulu MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 6271