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); 163587a1f16SAl Viro static umode_t ql4_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, 2063128c6c7SMike Christie .attr_is_visible = ql4_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 318587a1f16SAl Viro static umode_t ql4_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, 80659e13d48SMasanari Iida "Unable to retrieve 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; 1369b3a271a9SManish Rangankar dst_addr = &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 24234f77083eSMike Hernandez temp = qla4_8xxx_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 2459f4f5df23SVikas Chaudhary fw_heartbeat_counter = qla4_8xxx_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__, 24819ee91a38SShyam Sunder qla4_8xxx_rd_32(ha, 24829ee91a38SShyam Sunder QLA82XX_PEG_HALT_STATUS1), 248368d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, 248468d92ebfSVikas Chaudhary QLA82XX_PEG_HALT_STATUS2), 248568d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 248668d92ebfSVikas Chaudhary 0x3c), 248768d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 248868d92ebfSVikas Chaudhary 0x3c), 248968d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 249068d92ebfSVikas Chaudhary 0x3c), 249168d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 249268d92ebfSVikas Chaudhary 0x3c), 249368d92ebfSVikas Chaudhary qla4_8xxx_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))) { 25189ee91a38SShyam Sunder dev_state = qla4_8xxx_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"); 2523e6bd0ebdSGiridhar Malavali qla4_8xxx_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); 25284f77083eSMike Hernandez } else if (dev_state == QLA82XX_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 } 2536f4f5df23SVikas Chaudhary } else if (dev_state == QLA82XX_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"); 2547e6bd0ebdSGiridhar Malavali qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2548e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P0 | 2549e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P1); 25509ee91a38SShyam Sunder halt_status = qla4_8xxx_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 } 30039ee91a38SShyam Sunder 30042bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 3005f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 30069ee91a38SShyam Sunder chip_reset: 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)) { 30438e0f3a66SSarang Radke qla4_8xxx_idc_lock(ha); 30448e0f3a66SSarang Radke dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 30458e0f3a66SSarang Radke qla4_8xxx_idc_unlock(ha); 30468e0f3a66SSarang Radke if (dev_state == QLA82XX_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; 317113483730SMike Christie 317213483730SMike Christie sess = cls_session->dd_data; 317313483730SMike Christie ddb_entry = sess->dd_data; 317413483730SMike Christie ha = ddb_entry->ha; 317513483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 317613483730SMike Christie " unblock user space session\n", ha->host_no, __func__, 317713483730SMike Christie ddb_entry->fw_ddb_index); 317813483730SMike Christie iscsi_conn_start(ddb_entry->conn); 317913483730SMike Christie iscsi_conn_login_event(ddb_entry->conn, 318013483730SMike Christie ISCSI_CONN_STATE_LOGGED_IN); 318113483730SMike Christie 318213483730SMike Christie return QLA_SUCCESS; 318313483730SMike Christie } 318413483730SMike Christie 31852d7924e6SVikas Chaudhary static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 31862d7924e6SVikas Chaudhary { 3187b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 31882d7924e6SVikas Chaudhary } 31892d7924e6SVikas Chaudhary 319013483730SMike Christie static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 319113483730SMike Christie { 319213483730SMike Christie uint16_t relogin_timer; 319313483730SMike Christie struct iscsi_session *sess; 319413483730SMike Christie struct ddb_entry *ddb_entry; 319513483730SMike Christie struct scsi_qla_host *ha; 319613483730SMike Christie 319713483730SMike Christie sess = cls_sess->dd_data; 319813483730SMike Christie ddb_entry = sess->dd_data; 319913483730SMike Christie ha = ddb_entry->ha; 320013483730SMike Christie 320113483730SMike Christie relogin_timer = max(ddb_entry->default_relogin_timeout, 320213483730SMike Christie (uint16_t)RELOGIN_TOV); 320313483730SMike Christie atomic_set(&ddb_entry->relogin_timer, relogin_timer); 320413483730SMike Christie 320513483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 320613483730SMike Christie "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 320713483730SMike Christie ddb_entry->fw_ddb_index, relogin_timer)); 320813483730SMike Christie 320913483730SMike Christie qla4xxx_login_flash_ddb(cls_sess); 321013483730SMike Christie } 321113483730SMike Christie 321213483730SMike Christie static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 321313483730SMike Christie { 321413483730SMike Christie struct iscsi_session *sess; 321513483730SMike Christie struct ddb_entry *ddb_entry; 321613483730SMike Christie struct scsi_qla_host *ha; 321713483730SMike Christie 321813483730SMike Christie sess = cls_sess->dd_data; 321913483730SMike Christie ddb_entry = sess->dd_data; 322013483730SMike Christie ha = ddb_entry->ha; 322113483730SMike Christie 322213483730SMike Christie if (!(ddb_entry->ddb_type == FLASH_DDB)) 322313483730SMike Christie return; 322413483730SMike Christie 322513483730SMike Christie if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 322613483730SMike Christie !iscsi_is_session_online(cls_sess)) { 322713483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 322813483730SMike Christie "relogin issued\n")); 322913483730SMike Christie qla4xxx_relogin_flash_ddb(cls_sess); 323013483730SMike Christie } 323113483730SMike Christie } 323213483730SMike Christie 3233f4f5df23SVikas Chaudhary void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 3234f4f5df23SVikas Chaudhary { 32351b46807eSLalit Chandivade if (ha->dpc_thread) 3236f4f5df23SVikas Chaudhary queue_work(ha->dpc_thread, &ha->dpc_work); 3237f4f5df23SVikas Chaudhary } 3238f4f5df23SVikas Chaudhary 3239ff884430SVikas Chaudhary static struct qla4_work_evt * 3240ff884430SVikas Chaudhary qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 3241ff884430SVikas Chaudhary enum qla4_work_type type) 3242ff884430SVikas Chaudhary { 3243ff884430SVikas Chaudhary struct qla4_work_evt *e; 3244ff884430SVikas Chaudhary uint32_t size = sizeof(struct qla4_work_evt) + data_size; 3245ff884430SVikas Chaudhary 3246ff884430SVikas Chaudhary e = kzalloc(size, GFP_ATOMIC); 3247ff884430SVikas Chaudhary if (!e) 3248ff884430SVikas Chaudhary return NULL; 3249ff884430SVikas Chaudhary 3250ff884430SVikas Chaudhary INIT_LIST_HEAD(&e->list); 3251ff884430SVikas Chaudhary e->type = type; 3252ff884430SVikas Chaudhary return e; 3253ff884430SVikas Chaudhary } 3254ff884430SVikas Chaudhary 3255ff884430SVikas Chaudhary static void qla4xxx_post_work(struct scsi_qla_host *ha, 3256ff884430SVikas Chaudhary struct qla4_work_evt *e) 3257ff884430SVikas Chaudhary { 3258ff884430SVikas Chaudhary unsigned long flags; 3259ff884430SVikas Chaudhary 3260ff884430SVikas Chaudhary spin_lock_irqsave(&ha->work_lock, flags); 3261ff884430SVikas Chaudhary list_add_tail(&e->list, &ha->work_list); 3262ff884430SVikas Chaudhary spin_unlock_irqrestore(&ha->work_lock, flags); 3263ff884430SVikas Chaudhary qla4xxx_wake_dpc(ha); 3264ff884430SVikas Chaudhary } 3265ff884430SVikas Chaudhary 3266ff884430SVikas Chaudhary int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 3267ff884430SVikas Chaudhary enum iscsi_host_event_code aen_code, 3268ff884430SVikas Chaudhary uint32_t data_size, uint8_t *data) 3269ff884430SVikas Chaudhary { 3270ff884430SVikas Chaudhary struct qla4_work_evt *e; 3271ff884430SVikas Chaudhary 3272ff884430SVikas Chaudhary e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 3273ff884430SVikas Chaudhary if (!e) 3274ff884430SVikas Chaudhary return QLA_ERROR; 3275ff884430SVikas Chaudhary 3276ff884430SVikas Chaudhary e->u.aen.code = aen_code; 3277ff884430SVikas Chaudhary e->u.aen.data_size = data_size; 3278ff884430SVikas Chaudhary memcpy(e->u.aen.data, data, data_size); 3279ff884430SVikas Chaudhary 3280ff884430SVikas Chaudhary qla4xxx_post_work(ha, e); 3281ff884430SVikas Chaudhary 3282ff884430SVikas Chaudhary return QLA_SUCCESS; 3283ff884430SVikas Chaudhary } 3284ff884430SVikas Chaudhary 3285c0b9d3f7SVikas Chaudhary int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 3286c0b9d3f7SVikas Chaudhary uint32_t status, uint32_t pid, 3287c0b9d3f7SVikas Chaudhary uint32_t data_size, uint8_t *data) 3288c0b9d3f7SVikas Chaudhary { 3289c0b9d3f7SVikas Chaudhary struct qla4_work_evt *e; 3290c0b9d3f7SVikas Chaudhary 3291c0b9d3f7SVikas Chaudhary e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 3292c0b9d3f7SVikas Chaudhary if (!e) 3293c0b9d3f7SVikas Chaudhary return QLA_ERROR; 3294c0b9d3f7SVikas Chaudhary 3295c0b9d3f7SVikas Chaudhary e->u.ping.status = status; 3296c0b9d3f7SVikas Chaudhary e->u.ping.pid = pid; 3297c0b9d3f7SVikas Chaudhary e->u.ping.data_size = data_size; 3298c0b9d3f7SVikas Chaudhary memcpy(e->u.ping.data, data, data_size); 3299c0b9d3f7SVikas Chaudhary 3300c0b9d3f7SVikas Chaudhary qla4xxx_post_work(ha, e); 3301c0b9d3f7SVikas Chaudhary 3302c0b9d3f7SVikas Chaudhary return QLA_SUCCESS; 3303c0b9d3f7SVikas Chaudhary } 3304c0b9d3f7SVikas Chaudhary 3305a7380a65SVikas Chaudhary static void qla4xxx_do_work(struct scsi_qla_host *ha) 3306ff884430SVikas Chaudhary { 3307ff884430SVikas Chaudhary struct qla4_work_evt *e, *tmp; 3308ff884430SVikas Chaudhary unsigned long flags; 3309ff884430SVikas Chaudhary LIST_HEAD(work); 3310ff884430SVikas Chaudhary 3311ff884430SVikas Chaudhary spin_lock_irqsave(&ha->work_lock, flags); 3312ff884430SVikas Chaudhary list_splice_init(&ha->work_list, &work); 3313ff884430SVikas Chaudhary spin_unlock_irqrestore(&ha->work_lock, flags); 3314ff884430SVikas Chaudhary 3315ff884430SVikas Chaudhary list_for_each_entry_safe(e, tmp, &work, list) { 3316ff884430SVikas Chaudhary list_del_init(&e->list); 3317ff884430SVikas Chaudhary 3318ff884430SVikas Chaudhary switch (e->type) { 3319ff884430SVikas Chaudhary case QLA4_EVENT_AEN: 3320ff884430SVikas Chaudhary iscsi_post_host_event(ha->host_no, 3321ff884430SVikas Chaudhary &qla4xxx_iscsi_transport, 3322ff884430SVikas Chaudhary e->u.aen.code, 3323ff884430SVikas Chaudhary e->u.aen.data_size, 3324ff884430SVikas Chaudhary e->u.aen.data); 3325ff884430SVikas Chaudhary break; 3326c0b9d3f7SVikas Chaudhary case QLA4_EVENT_PING_STATUS: 3327c0b9d3f7SVikas Chaudhary iscsi_ping_comp_event(ha->host_no, 3328c0b9d3f7SVikas Chaudhary &qla4xxx_iscsi_transport, 3329c0b9d3f7SVikas Chaudhary e->u.ping.status, 3330c0b9d3f7SVikas Chaudhary e->u.ping.pid, 3331c0b9d3f7SVikas Chaudhary e->u.ping.data_size, 3332c0b9d3f7SVikas Chaudhary e->u.ping.data); 3333c0b9d3f7SVikas Chaudhary break; 3334ff884430SVikas Chaudhary default: 3335ff884430SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 3336ff884430SVikas Chaudhary "supported", e->type); 3337ff884430SVikas Chaudhary } 3338ff884430SVikas Chaudhary kfree(e); 3339ff884430SVikas Chaudhary } 3340ff884430SVikas Chaudhary } 3341ff884430SVikas Chaudhary 3342afaf5a2dSDavid Somayajulu /** 3343afaf5a2dSDavid Somayajulu * qla4xxx_do_dpc - dpc routine 3344afaf5a2dSDavid Somayajulu * @data: in our case pointer to adapter structure 3345afaf5a2dSDavid Somayajulu * 3346afaf5a2dSDavid Somayajulu * This routine is a task that is schedule by the interrupt handler 3347afaf5a2dSDavid Somayajulu * to perform the background processing for interrupts. We put it 3348afaf5a2dSDavid Somayajulu * on a task queue that is consumed whenever the scheduler runs; that's 3349afaf5a2dSDavid Somayajulu * so you can do anything (i.e. put the process to sleep etc). In fact, 3350afaf5a2dSDavid Somayajulu * the mid-level tries to sleep when it reaches the driver threshold 3351afaf5a2dSDavid Somayajulu * "host->can_queue". This can cause a panic if we were in our interrupt code. 3352afaf5a2dSDavid Somayajulu **/ 3353c4028958SDavid Howells static void qla4xxx_do_dpc(struct work_struct *work) 3354afaf5a2dSDavid Somayajulu { 3355c4028958SDavid Howells struct scsi_qla_host *ha = 3356c4028958SDavid Howells container_of(work, struct scsi_qla_host, dpc_work); 3357477ffb9dSDavid C Somayajulu int status = QLA_ERROR; 3358afaf5a2dSDavid Somayajulu 3359f26b9044SDavid C Somayajulu DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 3360f4f5df23SVikas Chaudhary "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 3361f4f5df23SVikas Chaudhary ha->host_no, __func__, ha->flags, ha->dpc_flags)) 3362afaf5a2dSDavid Somayajulu 3363afaf5a2dSDavid Somayajulu /* Initialization not yet finished. Don't do anything yet. */ 3364afaf5a2dSDavid Somayajulu if (!test_bit(AF_INIT_DONE, &ha->flags)) 33651b46807eSLalit Chandivade return; 3366afaf5a2dSDavid Somayajulu 33672232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 33682232be0dSLalit Chandivade DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 33692232be0dSLalit Chandivade ha->host_no, __func__, ha->flags)); 33701b46807eSLalit Chandivade return; 33712232be0dSLalit Chandivade } 33722232be0dSLalit Chandivade 3373ff884430SVikas Chaudhary /* post events to application */ 3374ff884430SVikas Chaudhary qla4xxx_do_work(ha); 3375ff884430SVikas Chaudhary 3376f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 3377f4f5df23SVikas Chaudhary if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 3378f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 3379f4f5df23SVikas Chaudhary qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 3380f4f5df23SVikas Chaudhary QLA82XX_DEV_FAILED); 3381f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 3382f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 3383f4f5df23SVikas Chaudhary qla4_8xxx_device_state_handler(ha); 3384f4f5df23SVikas Chaudhary } 3385f4f5df23SVikas Chaudhary if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 3386f4f5df23SVikas Chaudhary qla4_8xxx_need_qsnt_handler(ha); 3387f4f5df23SVikas Chaudhary } 3388f4f5df23SVikas Chaudhary } 3389f4f5df23SVikas Chaudhary 3390f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 3391f4f5df23SVikas Chaudhary (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 3392afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 3393f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 3394f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 3395f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 3396f4f5df23SVikas Chaudhary ha->host_no, __func__)); 3397f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3398f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3399f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3400f4f5df23SVikas Chaudhary goto dpc_post_reset_ha; 3401f4f5df23SVikas Chaudhary } 3402f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 3403f26b9044SDavid C Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags)) 3404f4f5df23SVikas Chaudhary qla4xxx_recover_adapter(ha); 3405afaf5a2dSDavid Somayajulu 3406477ffb9dSDavid C Somayajulu if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3407afaf5a2dSDavid Somayajulu uint8_t wait_time = RESET_INTR_TOV; 3408afaf5a2dSDavid Somayajulu 3409afaf5a2dSDavid Somayajulu while ((readw(&ha->reg->ctrl_status) & 3410afaf5a2dSDavid Somayajulu (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 3411afaf5a2dSDavid Somayajulu if (--wait_time == 0) 3412afaf5a2dSDavid Somayajulu break; 3413afaf5a2dSDavid Somayajulu msleep(1000); 3414afaf5a2dSDavid Somayajulu } 3415afaf5a2dSDavid Somayajulu if (wait_time == 0) 3416afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: SR|FSR " 3417afaf5a2dSDavid Somayajulu "bit not cleared-- resetting\n", 3418afaf5a2dSDavid Somayajulu ha->host_no, __func__)); 3419f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3420477ffb9dSDavid C Somayajulu if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 3421477ffb9dSDavid C Somayajulu qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3422f4f5df23SVikas Chaudhary status = qla4xxx_recover_adapter(ha); 3423477ffb9dSDavid C Somayajulu } 3424477ffb9dSDavid C Somayajulu clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3425477ffb9dSDavid C Somayajulu if (status == QLA_SUCCESS) 3426f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 3427afaf5a2dSDavid Somayajulu } 3428afaf5a2dSDavid Somayajulu } 3429afaf5a2dSDavid Somayajulu 3430f4f5df23SVikas Chaudhary dpc_post_reset_ha: 3431afaf5a2dSDavid Somayajulu /* ---- process AEN? --- */ 3432afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 3433afaf5a2dSDavid Somayajulu qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 3434afaf5a2dSDavid Somayajulu 3435afaf5a2dSDavid Somayajulu /* ---- Get DHCP IP Address? --- */ 3436afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 3437afaf5a2dSDavid Somayajulu qla4xxx_get_dhcp_ip_address(ha); 3438afaf5a2dSDavid Somayajulu 343913483730SMike Christie /* ---- relogin device? --- */ 344013483730SMike Christie if (adapter_up(ha) && 344113483730SMike Christie test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 344213483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 344313483730SMike Christie } 344413483730SMike Christie 3445065aa1b4SVikas Chaudhary /* ---- link change? --- */ 3446065aa1b4SVikas Chaudhary if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 3447065aa1b4SVikas Chaudhary if (!test_bit(AF_LINK_UP, &ha->flags)) { 3448065aa1b4SVikas Chaudhary /* ---- link down? --- */ 34492d7924e6SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 3450065aa1b4SVikas Chaudhary } else { 3451065aa1b4SVikas Chaudhary /* ---- link up? --- * 3452065aa1b4SVikas Chaudhary * F/W will auto login to all devices ONLY ONCE after 3453065aa1b4SVikas Chaudhary * link up during driver initialization and runtime 3454065aa1b4SVikas Chaudhary * fatal error recovery. Therefore, the driver must 3455065aa1b4SVikas Chaudhary * manually relogin to devices when recovering from 3456065aa1b4SVikas Chaudhary * connection failures, logouts, expired KATO, etc. */ 345713483730SMike Christie if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 345813483730SMike Christie qla4xxx_build_ddb_list(ha, ha->is_reset); 345913483730SMike Christie iscsi_host_for_each_session(ha->host, 346013483730SMike Christie qla4xxx_login_flash_ddb); 346113483730SMike Christie } else 34622d7924e6SVikas Chaudhary qla4xxx_relogin_all_devices(ha); 3463065aa1b4SVikas Chaudhary } 3464065aa1b4SVikas Chaudhary } 3465afaf5a2dSDavid Somayajulu } 3466afaf5a2dSDavid Somayajulu 3467afaf5a2dSDavid Somayajulu /** 3468afaf5a2dSDavid Somayajulu * qla4xxx_free_adapter - release the adapter 3469afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 3470afaf5a2dSDavid Somayajulu **/ 3471afaf5a2dSDavid Somayajulu static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 3472afaf5a2dSDavid Somayajulu { 34738a288960SSarang Radke qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 3474afaf5a2dSDavid Somayajulu 3475afaf5a2dSDavid Somayajulu if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 3476afaf5a2dSDavid Somayajulu /* Turn-off interrupts on the card. */ 3477f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 3478afaf5a2dSDavid Somayajulu } 3479afaf5a2dSDavid Somayajulu 3480afaf5a2dSDavid Somayajulu /* Remove timer thread, if present */ 3481afaf5a2dSDavid Somayajulu if (ha->timer_active) 3482afaf5a2dSDavid Somayajulu qla4xxx_stop_timer(ha); 3483afaf5a2dSDavid Somayajulu 3484f4f5df23SVikas Chaudhary /* Kill the kernel thread for this host */ 3485f4f5df23SVikas Chaudhary if (ha->dpc_thread) 3486f4f5df23SVikas Chaudhary destroy_workqueue(ha->dpc_thread); 3487f4f5df23SVikas Chaudhary 3488b3a271a9SManish Rangankar /* Kill the kernel thread for this host */ 3489b3a271a9SManish Rangankar if (ha->task_wq) 3490b3a271a9SManish Rangankar destroy_workqueue(ha->task_wq); 3491b3a271a9SManish Rangankar 3492f4f5df23SVikas Chaudhary /* Put firmware in known state */ 3493f4f5df23SVikas Chaudhary ha->isp_ops->reset_firmware(ha); 3494f4f5df23SVikas Chaudhary 3495f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 3496f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 3497f4f5df23SVikas Chaudhary qla4_8xxx_clear_drv_active(ha); 3498f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 3499f4f5df23SVikas Chaudhary } 3500f4f5df23SVikas Chaudhary 3501afaf5a2dSDavid Somayajulu /* Detach interrupts */ 3502afaf5a2dSDavid Somayajulu if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 3503f4f5df23SVikas Chaudhary qla4xxx_free_irqs(ha); 3504afaf5a2dSDavid Somayajulu 3505bee4fe8eSDavid C Somayajulu /* free extra memory */ 3506bee4fe8eSDavid C Somayajulu qla4xxx_mem_free(ha); 3507f4f5df23SVikas Chaudhary } 3508bee4fe8eSDavid C Somayajulu 3509f4f5df23SVikas Chaudhary int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 3510f4f5df23SVikas Chaudhary { 3511f4f5df23SVikas Chaudhary int status = 0; 3512f4f5df23SVikas Chaudhary unsigned long mem_base, mem_len, db_base, db_len; 3513f4f5df23SVikas Chaudhary struct pci_dev *pdev = ha->pdev; 3514afaf5a2dSDavid Somayajulu 3515f4f5df23SVikas Chaudhary status = pci_request_regions(pdev, DRIVER_NAME); 3516f4f5df23SVikas Chaudhary if (status) { 3517f4f5df23SVikas Chaudhary printk(KERN_WARNING 3518f4f5df23SVikas Chaudhary "scsi(%ld) Failed to reserve PIO regions (%s) " 3519f4f5df23SVikas Chaudhary "status=%d\n", ha->host_no, pci_name(pdev), status); 3520f4f5df23SVikas Chaudhary goto iospace_error_exit; 3521f4f5df23SVikas Chaudhary } 3522f4f5df23SVikas Chaudhary 3523f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 35247d7311c4SSergei Shtylyov __func__, pdev->revision)); 35257d7311c4SSergei Shtylyov ha->revision_id = pdev->revision; 3526f4f5df23SVikas Chaudhary 3527f4f5df23SVikas Chaudhary /* remap phys address */ 3528f4f5df23SVikas Chaudhary mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 3529f4f5df23SVikas Chaudhary mem_len = pci_resource_len(pdev, 0); 3530f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 3531f4f5df23SVikas Chaudhary __func__, mem_base, mem_len)); 3532f4f5df23SVikas Chaudhary 3533f4f5df23SVikas Chaudhary /* mapping of pcibase pointer */ 3534f4f5df23SVikas Chaudhary ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 3535f4f5df23SVikas Chaudhary if (!ha->nx_pcibase) { 3536f4f5df23SVikas Chaudhary printk(KERN_ERR 3537f4f5df23SVikas Chaudhary "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 3538f4f5df23SVikas Chaudhary pci_release_regions(ha->pdev); 3539f4f5df23SVikas Chaudhary goto iospace_error_exit; 3540f4f5df23SVikas Chaudhary } 3541f4f5df23SVikas Chaudhary 3542f4f5df23SVikas Chaudhary /* Mapping of IO base pointer, door bell read and write pointer */ 3543f4f5df23SVikas Chaudhary 3544f4f5df23SVikas Chaudhary /* mapping of IO base pointer */ 3545f4f5df23SVikas Chaudhary ha->qla4_8xxx_reg = 3546f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase + 3547f4f5df23SVikas Chaudhary 0xbc000 + (ha->pdev->devfn << 11)); 3548f4f5df23SVikas Chaudhary 3549f4f5df23SVikas Chaudhary db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 3550f4f5df23SVikas Chaudhary db_len = pci_resource_len(pdev, 4); 3551f4f5df23SVikas Chaudhary 35522657c800SShyam Sundar ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 35532657c800SShyam Sundar QLA82XX_CAM_RAM_DB2); 3554f4f5df23SVikas Chaudhary 35552657c800SShyam Sundar return 0; 3556f4f5df23SVikas Chaudhary iospace_error_exit: 3557f4f5df23SVikas Chaudhary return -ENOMEM; 3558afaf5a2dSDavid Somayajulu } 3559afaf5a2dSDavid Somayajulu 3560afaf5a2dSDavid Somayajulu /*** 3561afaf5a2dSDavid Somayajulu * qla4xxx_iospace_config - maps registers 3562afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 3563afaf5a2dSDavid Somayajulu * 3564afaf5a2dSDavid Somayajulu * This routines maps HBA's registers from the pci address space 3565afaf5a2dSDavid Somayajulu * into the kernel virtual address space for memory mapped i/o. 3566afaf5a2dSDavid Somayajulu **/ 3567f4f5df23SVikas Chaudhary int qla4xxx_iospace_config(struct scsi_qla_host *ha) 3568afaf5a2dSDavid Somayajulu { 3569afaf5a2dSDavid Somayajulu unsigned long pio, pio_len, pio_flags; 3570afaf5a2dSDavid Somayajulu unsigned long mmio, mmio_len, mmio_flags; 3571afaf5a2dSDavid Somayajulu 3572afaf5a2dSDavid Somayajulu pio = pci_resource_start(ha->pdev, 0); 3573afaf5a2dSDavid Somayajulu pio_len = pci_resource_len(ha->pdev, 0); 3574afaf5a2dSDavid Somayajulu pio_flags = pci_resource_flags(ha->pdev, 0); 3575afaf5a2dSDavid Somayajulu if (pio_flags & IORESOURCE_IO) { 3576afaf5a2dSDavid Somayajulu if (pio_len < MIN_IOBASE_LEN) { 3577c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3578afaf5a2dSDavid Somayajulu "Invalid PCI I/O region size\n"); 3579afaf5a2dSDavid Somayajulu pio = 0; 3580afaf5a2dSDavid Somayajulu } 3581afaf5a2dSDavid Somayajulu } else { 3582c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 3583afaf5a2dSDavid Somayajulu pio = 0; 3584afaf5a2dSDavid Somayajulu } 3585afaf5a2dSDavid Somayajulu 3586afaf5a2dSDavid Somayajulu /* Use MMIO operations for all accesses. */ 3587afaf5a2dSDavid Somayajulu mmio = pci_resource_start(ha->pdev, 1); 3588afaf5a2dSDavid Somayajulu mmio_len = pci_resource_len(ha->pdev, 1); 3589afaf5a2dSDavid Somayajulu mmio_flags = pci_resource_flags(ha->pdev, 1); 3590afaf5a2dSDavid Somayajulu 3591afaf5a2dSDavid Somayajulu if (!(mmio_flags & IORESOURCE_MEM)) { 3592c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3593afaf5a2dSDavid Somayajulu "region #0 not an MMIO resource, aborting\n"); 3594afaf5a2dSDavid Somayajulu 3595afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3596afaf5a2dSDavid Somayajulu } 3597c2660df3SVikas Chaudhary 3598afaf5a2dSDavid Somayajulu if (mmio_len < MIN_IOBASE_LEN) { 3599c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3600afaf5a2dSDavid Somayajulu "Invalid PCI mem region size, aborting\n"); 3601afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3602afaf5a2dSDavid Somayajulu } 3603afaf5a2dSDavid Somayajulu 3604afaf5a2dSDavid Somayajulu if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 3605c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3606afaf5a2dSDavid Somayajulu "Failed to reserve PIO/MMIO regions\n"); 3607afaf5a2dSDavid Somayajulu 3608afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3609afaf5a2dSDavid Somayajulu } 3610afaf5a2dSDavid Somayajulu 3611afaf5a2dSDavid Somayajulu ha->pio_address = pio; 3612afaf5a2dSDavid Somayajulu ha->pio_length = pio_len; 3613afaf5a2dSDavid Somayajulu ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 3614afaf5a2dSDavid Somayajulu if (!ha->reg) { 3615c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3616afaf5a2dSDavid Somayajulu "cannot remap MMIO, aborting\n"); 3617afaf5a2dSDavid Somayajulu 3618afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3619afaf5a2dSDavid Somayajulu } 3620afaf5a2dSDavid Somayajulu 3621afaf5a2dSDavid Somayajulu return 0; 3622afaf5a2dSDavid Somayajulu 3623afaf5a2dSDavid Somayajulu iospace_error_exit: 3624afaf5a2dSDavid Somayajulu return -ENOMEM; 3625afaf5a2dSDavid Somayajulu } 3626afaf5a2dSDavid Somayajulu 3627f4f5df23SVikas Chaudhary static struct isp_operations qla4xxx_isp_ops = { 3628f4f5df23SVikas Chaudhary .iospace_config = qla4xxx_iospace_config, 3629f4f5df23SVikas Chaudhary .pci_config = qla4xxx_pci_config, 3630f4f5df23SVikas Chaudhary .disable_intrs = qla4xxx_disable_intrs, 3631f4f5df23SVikas Chaudhary .enable_intrs = qla4xxx_enable_intrs, 3632f4f5df23SVikas Chaudhary .start_firmware = qla4xxx_start_firmware, 3633f4f5df23SVikas Chaudhary .intr_handler = qla4xxx_intr_handler, 3634f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4xxx_interrupt_service_routine, 3635f4f5df23SVikas Chaudhary .reset_chip = qla4xxx_soft_reset, 3636f4f5df23SVikas Chaudhary .reset_firmware = qla4xxx_hw_reset, 3637f4f5df23SVikas Chaudhary .queue_iocb = qla4xxx_queue_iocb, 3638f4f5df23SVikas Chaudhary .complete_iocb = qla4xxx_complete_iocb, 3639f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 3640f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 3641f4f5df23SVikas Chaudhary .get_sys_info = qla4xxx_get_sys_info, 3642f4f5df23SVikas Chaudhary }; 3643f4f5df23SVikas Chaudhary 3644f4f5df23SVikas Chaudhary static struct isp_operations qla4_8xxx_isp_ops = { 3645f4f5df23SVikas Chaudhary .iospace_config = qla4_8xxx_iospace_config, 3646f4f5df23SVikas Chaudhary .pci_config = qla4_8xxx_pci_config, 3647f4f5df23SVikas Chaudhary .disable_intrs = qla4_8xxx_disable_intrs, 3648f4f5df23SVikas Chaudhary .enable_intrs = qla4_8xxx_enable_intrs, 3649f4f5df23SVikas Chaudhary .start_firmware = qla4_8xxx_load_risc, 3650f4f5df23SVikas Chaudhary .intr_handler = qla4_8xxx_intr_handler, 3651f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4_8xxx_interrupt_service_routine, 3652f4f5df23SVikas Chaudhary .reset_chip = qla4_8xxx_isp_reset, 3653f4f5df23SVikas Chaudhary .reset_firmware = qla4_8xxx_stop_firmware, 3654f4f5df23SVikas Chaudhary .queue_iocb = qla4_8xxx_queue_iocb, 3655f4f5df23SVikas Chaudhary .complete_iocb = qla4_8xxx_complete_iocb, 3656f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out, 3657f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in, 3658f4f5df23SVikas Chaudhary .get_sys_info = qla4_8xxx_get_sys_info, 3659f4f5df23SVikas Chaudhary }; 3660f4f5df23SVikas Chaudhary 3661f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3662f4f5df23SVikas Chaudhary { 3663f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 3664f4f5df23SVikas Chaudhary } 3665f4f5df23SVikas Chaudhary 3666f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3667f4f5df23SVikas Chaudhary { 3668f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out)); 3669f4f5df23SVikas Chaudhary } 3670f4f5df23SVikas Chaudhary 3671f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3672f4f5df23SVikas Chaudhary { 3673f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 3674f4f5df23SVikas Chaudhary } 3675f4f5df23SVikas Chaudhary 3676f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3677f4f5df23SVikas Chaudhary { 3678f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in)); 3679f4f5df23SVikas Chaudhary } 3680f4f5df23SVikas Chaudhary 36812a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 36822a991c21SManish Rangankar { 36832a991c21SManish Rangankar struct scsi_qla_host *ha = data; 36842a991c21SManish Rangankar char *str = buf; 36852a991c21SManish Rangankar int rc; 36862a991c21SManish Rangankar 36872a991c21SManish Rangankar switch (type) { 36882a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 36892a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 36902a991c21SManish Rangankar break; 36912a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 36922a991c21SManish Rangankar rc = sprintf(str, "0\n"); 36932a991c21SManish Rangankar break; 36942a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 36952a991c21SManish Rangankar rc = sysfs_format_mac(str, ha->my_mac, 36962a991c21SManish Rangankar MAC_ADDR_LEN); 36972a991c21SManish Rangankar break; 36982a991c21SManish Rangankar default: 36992a991c21SManish Rangankar rc = -ENOSYS; 37002a991c21SManish Rangankar break; 37012a991c21SManish Rangankar } 37022a991c21SManish Rangankar return rc; 37032a991c21SManish Rangankar } 37042a991c21SManish Rangankar 3705587a1f16SAl Viro static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 37062a991c21SManish Rangankar { 37072a991c21SManish Rangankar int rc; 37082a991c21SManish Rangankar 37092a991c21SManish Rangankar switch (type) { 37102a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 37112a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 37122a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 37132a991c21SManish Rangankar rc = S_IRUGO; 37142a991c21SManish Rangankar break; 37152a991c21SManish Rangankar default: 37162a991c21SManish Rangankar rc = 0; 37172a991c21SManish Rangankar break; 37182a991c21SManish Rangankar } 37192a991c21SManish Rangankar return rc; 37202a991c21SManish Rangankar } 37212a991c21SManish Rangankar 37222a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 37232a991c21SManish Rangankar { 37242a991c21SManish Rangankar struct scsi_qla_host *ha = data; 37252a991c21SManish Rangankar char *str = buf; 37262a991c21SManish Rangankar int rc; 37272a991c21SManish Rangankar 37282a991c21SManish Rangankar switch (type) { 37292a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 37302a991c21SManish Rangankar rc = sprintf(str, "%s\n", ha->name_string); 37312a991c21SManish Rangankar break; 37322a991c21SManish Rangankar default: 37332a991c21SManish Rangankar rc = -ENOSYS; 37342a991c21SManish Rangankar break; 37352a991c21SManish Rangankar } 37362a991c21SManish Rangankar return rc; 37372a991c21SManish Rangankar } 37382a991c21SManish Rangankar 3739587a1f16SAl Viro static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 37402a991c21SManish Rangankar { 37412a991c21SManish Rangankar int rc; 37422a991c21SManish Rangankar 37432a991c21SManish Rangankar switch (type) { 37442a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 37452a991c21SManish Rangankar rc = S_IRUGO; 37462a991c21SManish Rangankar break; 37472a991c21SManish Rangankar default: 37482a991c21SManish Rangankar rc = 0; 37492a991c21SManish Rangankar break; 37502a991c21SManish Rangankar } 37512a991c21SManish Rangankar return rc; 37522a991c21SManish Rangankar } 37532a991c21SManish Rangankar 37542a991c21SManish Rangankar static ssize_t 37552a991c21SManish Rangankar qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 37562a991c21SManish Rangankar char *buf) 37572a991c21SManish Rangankar { 37582a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 37592a991c21SManish Rangankar char *str = buf; 37602a991c21SManish Rangankar int rc; 37612a991c21SManish Rangankar 37622a991c21SManish Rangankar switch (type) { 37632a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 37642a991c21SManish Rangankar rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 37652a991c21SManish Rangankar break; 37662a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 37672a991c21SManish Rangankar if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 37682a991c21SManish Rangankar rc = sprintf(buf, "%pI4\n", 37692a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 37702a991c21SManish Rangankar else 37712a991c21SManish Rangankar rc = sprintf(str, "%pI6\n", 37722a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 37732a991c21SManish Rangankar break; 37742a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 37752a991c21SManish Rangankar rc = sprintf(str, "%d\n", boot_conn->dest_port); 37762a991c21SManish Rangankar break; 37772a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 37782a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 37792a991c21SManish Rangankar boot_conn->chap.target_chap_name_length, 37802a991c21SManish Rangankar (char *)&boot_conn->chap.target_chap_name); 37812a991c21SManish Rangankar break; 37822a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 37832a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 37842a991c21SManish Rangankar boot_conn->chap.target_secret_length, 37852a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret); 37862a991c21SManish Rangankar break; 37872a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 37882a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 37892a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length, 37902a991c21SManish Rangankar (char *)&boot_conn->chap.intr_chap_name); 37912a991c21SManish Rangankar break; 37922a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 37932a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 37942a991c21SManish Rangankar boot_conn->chap.intr_secret_length, 37952a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret); 37962a991c21SManish Rangankar break; 37972a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 37982a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 37992a991c21SManish Rangankar break; 38002a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 38012a991c21SManish Rangankar rc = sprintf(str, "0\n"); 38022a991c21SManish Rangankar break; 38032a991c21SManish Rangankar default: 38042a991c21SManish Rangankar rc = -ENOSYS; 38052a991c21SManish Rangankar break; 38062a991c21SManish Rangankar } 38072a991c21SManish Rangankar return rc; 38082a991c21SManish Rangankar } 38092a991c21SManish Rangankar 38102a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 38112a991c21SManish Rangankar { 38122a991c21SManish Rangankar struct scsi_qla_host *ha = data; 38132a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 38142a991c21SManish Rangankar 38152a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 38162a991c21SManish Rangankar } 38172a991c21SManish Rangankar 38182a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 38192a991c21SManish Rangankar { 38202a991c21SManish Rangankar struct scsi_qla_host *ha = data; 38212a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 38222a991c21SManish Rangankar 38232a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 38242a991c21SManish Rangankar } 38252a991c21SManish Rangankar 3826587a1f16SAl Viro static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 38272a991c21SManish Rangankar { 38282a991c21SManish Rangankar int rc; 38292a991c21SManish Rangankar 38302a991c21SManish Rangankar switch (type) { 38312a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 38322a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 38332a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 38342a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 38352a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 38362a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 38372a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 38382a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 38392a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 38402a991c21SManish Rangankar rc = S_IRUGO; 38412a991c21SManish Rangankar break; 38422a991c21SManish Rangankar default: 38432a991c21SManish Rangankar rc = 0; 38442a991c21SManish Rangankar break; 38452a991c21SManish Rangankar } 38462a991c21SManish Rangankar return rc; 38472a991c21SManish Rangankar } 38482a991c21SManish Rangankar 38492a991c21SManish Rangankar static void qla4xxx_boot_release(void *data) 38502a991c21SManish Rangankar { 38512a991c21SManish Rangankar struct scsi_qla_host *ha = data; 38522a991c21SManish Rangankar 38532a991c21SManish Rangankar scsi_host_put(ha->host); 38542a991c21SManish Rangankar } 38552a991c21SManish Rangankar 38562a991c21SManish Rangankar static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 38572a991c21SManish Rangankar { 38582a991c21SManish Rangankar dma_addr_t buf_dma; 38592a991c21SManish Rangankar uint32_t addr, pri_addr, sec_addr; 38602a991c21SManish Rangankar uint32_t offset; 38612a991c21SManish Rangankar uint16_t func_num; 38622a991c21SManish Rangankar uint8_t val; 38632a991c21SManish Rangankar uint8_t *buf = NULL; 38642a991c21SManish Rangankar size_t size = 13 * sizeof(uint8_t); 38652a991c21SManish Rangankar int ret = QLA_SUCCESS; 38662a991c21SManish Rangankar 38672a991c21SManish Rangankar func_num = PCI_FUNC(ha->pdev->devfn); 38682a991c21SManish Rangankar 38690d5b36b8SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 38700d5b36b8SManish Rangankar __func__, ha->pdev->device, func_num); 38712a991c21SManish Rangankar 38720d5b36b8SManish Rangankar if (is_qla40XX(ha)) { 38732a991c21SManish Rangankar if (func_num == 1) { 38742a991c21SManish Rangankar addr = NVRAM_PORT0_BOOT_MODE; 38752a991c21SManish Rangankar pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 38762a991c21SManish Rangankar sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 38772a991c21SManish Rangankar } else if (func_num == 3) { 38782a991c21SManish Rangankar addr = NVRAM_PORT1_BOOT_MODE; 38792a991c21SManish Rangankar pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 38802a991c21SManish Rangankar sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 38812a991c21SManish Rangankar } else { 38822a991c21SManish Rangankar ret = QLA_ERROR; 38832a991c21SManish Rangankar goto exit_boot_info; 38842a991c21SManish Rangankar } 38852a991c21SManish Rangankar 38862a991c21SManish Rangankar /* Check Boot Mode */ 38872a991c21SManish Rangankar val = rd_nvram_byte(ha, addr); 38882a991c21SManish Rangankar if (!(val & 0x07)) { 3889e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 3890e8fb00e0SManish Rangankar "options : 0x%x\n", __func__, val)); 38912a991c21SManish Rangankar ret = QLA_ERROR; 38922a991c21SManish Rangankar goto exit_boot_info; 38932a991c21SManish Rangankar } 38942a991c21SManish Rangankar 38952a991c21SManish Rangankar /* get primary valid target index */ 38962a991c21SManish Rangankar val = rd_nvram_byte(ha, pri_addr); 38972a991c21SManish Rangankar if (val & BIT_7) 38982a991c21SManish Rangankar ddb_index[0] = (val & 0x7f); 38992a991c21SManish Rangankar 39002a991c21SManish Rangankar /* get secondary valid target index */ 39012a991c21SManish Rangankar val = rd_nvram_byte(ha, sec_addr); 39022a991c21SManish Rangankar if (val & BIT_7) 39032a991c21SManish Rangankar ddb_index[1] = (val & 0x7f); 39042a991c21SManish Rangankar 39052a991c21SManish Rangankar } else if (is_qla8022(ha)) { 39062a991c21SManish Rangankar buf = dma_alloc_coherent(&ha->pdev->dev, size, 39072a991c21SManish Rangankar &buf_dma, GFP_KERNEL); 39082a991c21SManish Rangankar if (!buf) { 39092a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 39102a991c21SManish Rangankar "%s: Unable to allocate dma buffer\n", 39112a991c21SManish Rangankar __func__)); 39122a991c21SManish Rangankar ret = QLA_ERROR; 39132a991c21SManish Rangankar goto exit_boot_info; 39142a991c21SManish Rangankar } 39152a991c21SManish Rangankar 39162a991c21SManish Rangankar if (ha->port_num == 0) 39172a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT0; 39182a991c21SManish Rangankar else if (ha->port_num == 1) 39192a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT1; 39202a991c21SManish Rangankar else { 39212a991c21SManish Rangankar ret = QLA_ERROR; 39222a991c21SManish Rangankar goto exit_boot_info_free; 39232a991c21SManish Rangankar } 39242a991c21SManish Rangankar addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 39252a991c21SManish Rangankar offset; 39262a991c21SManish Rangankar if (qla4xxx_get_flash(ha, buf_dma, addr, 39272a991c21SManish Rangankar 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 39282a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 39292a991c21SManish Rangankar " failed\n", ha->host_no, __func__)); 39302a991c21SManish Rangankar ret = QLA_ERROR; 39312a991c21SManish Rangankar goto exit_boot_info_free; 39322a991c21SManish Rangankar } 39332a991c21SManish Rangankar /* Check Boot Mode */ 39342a991c21SManish Rangankar if (!(buf[1] & 0x07)) { 3935e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 3936e8fb00e0SManish Rangankar " : 0x%x\n", buf[1])); 39372a991c21SManish Rangankar ret = QLA_ERROR; 39382a991c21SManish Rangankar goto exit_boot_info_free; 39392a991c21SManish Rangankar } 39402a991c21SManish Rangankar 39412a991c21SManish Rangankar /* get primary valid target index */ 39422a991c21SManish Rangankar if (buf[2] & BIT_7) 39432a991c21SManish Rangankar ddb_index[0] = buf[2] & 0x7f; 39442a991c21SManish Rangankar 39452a991c21SManish Rangankar /* get secondary valid target index */ 39462a991c21SManish Rangankar if (buf[11] & BIT_7) 39472a991c21SManish Rangankar ddb_index[1] = buf[11] & 0x7f; 39482a991c21SManish Rangankar } else { 39492a991c21SManish Rangankar ret = QLA_ERROR; 39502a991c21SManish Rangankar goto exit_boot_info; 39512a991c21SManish Rangankar } 39522a991c21SManish Rangankar 39532a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 39542a991c21SManish Rangankar " target ID %d\n", __func__, ddb_index[0], 39552a991c21SManish Rangankar ddb_index[1])); 39562a991c21SManish Rangankar 39572a991c21SManish Rangankar exit_boot_info_free: 39582a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 39592a991c21SManish Rangankar exit_boot_info: 396020e835b4SLalit Chandivade ha->pri_ddb_idx = ddb_index[0]; 396120e835b4SLalit Chandivade ha->sec_ddb_idx = ddb_index[1]; 39622a991c21SManish Rangankar return ret; 39632a991c21SManish Rangankar } 39642a991c21SManish Rangankar 396528deb45cSLalit Chandivade /** 396628deb45cSLalit Chandivade * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 396728deb45cSLalit Chandivade * @ha: pointer to adapter structure 396828deb45cSLalit Chandivade * @username: CHAP username to be returned 396928deb45cSLalit Chandivade * @password: CHAP password to be returned 397028deb45cSLalit Chandivade * 397128deb45cSLalit Chandivade * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 397228deb45cSLalit Chandivade * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 397328deb45cSLalit Chandivade * So from the CHAP cache find the first BIDI CHAP entry and set it 397428deb45cSLalit Chandivade * to the boot record in sysfs. 397528deb45cSLalit Chandivade **/ 397628deb45cSLalit Chandivade static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 397728deb45cSLalit Chandivade char *password) 397828deb45cSLalit Chandivade { 397928deb45cSLalit Chandivade int i, ret = -EINVAL; 398028deb45cSLalit Chandivade int max_chap_entries = 0; 398128deb45cSLalit Chandivade struct ql4_chap_table *chap_table; 398228deb45cSLalit Chandivade 398328deb45cSLalit Chandivade if (is_qla8022(ha)) 398428deb45cSLalit Chandivade max_chap_entries = (ha->hw.flt_chap_size / 2) / 398528deb45cSLalit Chandivade sizeof(struct ql4_chap_table); 398628deb45cSLalit Chandivade else 398728deb45cSLalit Chandivade max_chap_entries = MAX_CHAP_ENTRIES_40XX; 398828deb45cSLalit Chandivade 398928deb45cSLalit Chandivade if (!ha->chap_list) { 399028deb45cSLalit Chandivade ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 399128deb45cSLalit Chandivade return ret; 399228deb45cSLalit Chandivade } 399328deb45cSLalit Chandivade 399428deb45cSLalit Chandivade mutex_lock(&ha->chap_sem); 399528deb45cSLalit Chandivade for (i = 0; i < max_chap_entries; i++) { 399628deb45cSLalit Chandivade chap_table = (struct ql4_chap_table *)ha->chap_list + i; 399728deb45cSLalit Chandivade if (chap_table->cookie != 399828deb45cSLalit Chandivade __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 399928deb45cSLalit Chandivade continue; 400028deb45cSLalit Chandivade } 400128deb45cSLalit Chandivade 400228deb45cSLalit Chandivade if (chap_table->flags & BIT_7) /* local */ 400328deb45cSLalit Chandivade continue; 400428deb45cSLalit Chandivade 400528deb45cSLalit Chandivade if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 400628deb45cSLalit Chandivade continue; 400728deb45cSLalit Chandivade 400828deb45cSLalit Chandivade strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 400928deb45cSLalit Chandivade strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 401028deb45cSLalit Chandivade ret = 0; 401128deb45cSLalit Chandivade break; 401228deb45cSLalit Chandivade } 401328deb45cSLalit Chandivade mutex_unlock(&ha->chap_sem); 401428deb45cSLalit Chandivade 401528deb45cSLalit Chandivade return ret; 401628deb45cSLalit Chandivade } 401728deb45cSLalit Chandivade 401828deb45cSLalit Chandivade 40192a991c21SManish Rangankar static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 40202a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess, 40212a991c21SManish Rangankar uint16_t ddb_index) 40222a991c21SManish Rangankar { 40232a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 40242a991c21SManish Rangankar struct dev_db_entry *fw_ddb_entry; 40252a991c21SManish Rangankar dma_addr_t fw_ddb_entry_dma; 40262a991c21SManish Rangankar uint16_t idx; 40272a991c21SManish Rangankar uint16_t options; 40282a991c21SManish Rangankar int ret = QLA_SUCCESS; 40292a991c21SManish Rangankar 40302a991c21SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 40312a991c21SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 40322a991c21SManish Rangankar if (!fw_ddb_entry) { 40332a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 40342a991c21SManish Rangankar "%s: Unable to allocate dma buffer.\n", 40352a991c21SManish Rangankar __func__)); 40362a991c21SManish Rangankar ret = QLA_ERROR; 40372a991c21SManish Rangankar return ret; 40382a991c21SManish Rangankar } 40392a991c21SManish Rangankar 40402a991c21SManish Rangankar if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 40412a991c21SManish Rangankar fw_ddb_entry_dma, ddb_index)) { 4042e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 4043e8fb00e0SManish Rangankar "index [%d]\n", __func__, ddb_index)); 40442a991c21SManish Rangankar ret = QLA_ERROR; 40452a991c21SManish Rangankar goto exit_boot_target; 40462a991c21SManish Rangankar } 40472a991c21SManish Rangankar 40482a991c21SManish Rangankar /* Update target name and IP from DDB */ 40492a991c21SManish Rangankar memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 40502a991c21SManish Rangankar min(sizeof(boot_sess->target_name), 40512a991c21SManish Rangankar sizeof(fw_ddb_entry->iscsi_name))); 40522a991c21SManish Rangankar 40532a991c21SManish Rangankar options = le16_to_cpu(fw_ddb_entry->options); 40542a991c21SManish Rangankar if (options & DDB_OPT_IPV6_DEVICE) { 40552a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 40562a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 40572a991c21SManish Rangankar } else { 40582a991c21SManish Rangankar boot_conn->dest_ipaddr.ip_type = 0x1; 40592a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 40602a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 40612a991c21SManish Rangankar } 40622a991c21SManish Rangankar 40632a991c21SManish Rangankar boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 40642a991c21SManish Rangankar 40652a991c21SManish Rangankar /* update chap information */ 40662a991c21SManish Rangankar idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 40672a991c21SManish Rangankar 40682a991c21SManish Rangankar if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 40692a991c21SManish Rangankar 40702a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 40712a991c21SManish Rangankar 40722a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 40732a991c21SManish Rangankar target_chap_name, 40742a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret, 40752a991c21SManish Rangankar idx); 40762a991c21SManish Rangankar if (ret) { 40772a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 40782a991c21SManish Rangankar ret = QLA_ERROR; 40792a991c21SManish Rangankar goto exit_boot_target; 40802a991c21SManish Rangankar } 40812a991c21SManish Rangankar 40822a991c21SManish Rangankar boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 40832a991c21SManish Rangankar boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 40842a991c21SManish Rangankar } 40852a991c21SManish Rangankar 40862a991c21SManish Rangankar if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 40872a991c21SManish Rangankar 40882a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 40892a991c21SManish Rangankar 409028deb45cSLalit Chandivade ret = qla4xxx_get_bidi_chap(ha, 409128deb45cSLalit Chandivade (char *)&boot_conn->chap.intr_chap_name, 409228deb45cSLalit Chandivade (char *)&boot_conn->chap.intr_secret); 409328deb45cSLalit Chandivade 40942a991c21SManish Rangankar if (ret) { 40952a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 40962a991c21SManish Rangankar ret = QLA_ERROR; 40972a991c21SManish Rangankar goto exit_boot_target; 40982a991c21SManish Rangankar } 40992a991c21SManish Rangankar 41002a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 41012a991c21SManish Rangankar boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 41022a991c21SManish Rangankar } 41032a991c21SManish Rangankar 41042a991c21SManish Rangankar exit_boot_target: 41052a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 41062a991c21SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 41072a991c21SManish Rangankar return ret; 41082a991c21SManish Rangankar } 41092a991c21SManish Rangankar 41102a991c21SManish Rangankar static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 41112a991c21SManish Rangankar { 41122a991c21SManish Rangankar uint16_t ddb_index[2]; 41138de5b958SLalit Chandivade int ret = QLA_ERROR; 41148de5b958SLalit Chandivade int rval; 41152a991c21SManish Rangankar 41162a991c21SManish Rangankar memset(ddb_index, 0, sizeof(ddb_index)); 41178de5b958SLalit Chandivade ddb_index[0] = 0xffff; 41188de5b958SLalit Chandivade ddb_index[1] = 0xffff; 41192a991c21SManish Rangankar ret = get_fw_boot_info(ha, ddb_index); 41202a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 4121e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 4122e8fb00e0SManish Rangankar "%s: No boot target configured.\n", __func__)); 41232a991c21SManish Rangankar return ret; 41242a991c21SManish Rangankar } 41252a991c21SManish Rangankar 412613483730SMike Christie if (ql4xdisablesysfsboot) 412713483730SMike Christie return QLA_SUCCESS; 412813483730SMike Christie 41298de5b958SLalit Chandivade if (ddb_index[0] == 0xffff) 41308de5b958SLalit Chandivade goto sec_target; 41318de5b958SLalit Chandivade 41328de5b958SLalit Chandivade rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 41332a991c21SManish Rangankar ddb_index[0]); 41348de5b958SLalit Chandivade if (rval != QLA_SUCCESS) { 4135e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 4136e8fb00e0SManish Rangankar "configured\n", __func__)); 41378de5b958SLalit Chandivade } else 41388de5b958SLalit Chandivade ret = QLA_SUCCESS; 41392a991c21SManish Rangankar 41408de5b958SLalit Chandivade sec_target: 41418de5b958SLalit Chandivade if (ddb_index[1] == 0xffff) 41428de5b958SLalit Chandivade goto exit_get_boot_info; 41438de5b958SLalit Chandivade 41448de5b958SLalit Chandivade rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 41452a991c21SManish Rangankar ddb_index[1]); 41468de5b958SLalit Chandivade if (rval != QLA_SUCCESS) { 4147e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 4148e8fb00e0SManish Rangankar " configured\n", __func__)); 41498de5b958SLalit Chandivade } else 41508de5b958SLalit Chandivade ret = QLA_SUCCESS; 41518de5b958SLalit Chandivade 41528de5b958SLalit Chandivade exit_get_boot_info: 41532a991c21SManish Rangankar return ret; 41542a991c21SManish Rangankar } 41552a991c21SManish Rangankar 41562a991c21SManish Rangankar static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 41572a991c21SManish Rangankar { 41582a991c21SManish Rangankar struct iscsi_boot_kobj *boot_kobj; 41592a991c21SManish Rangankar 41602a991c21SManish Rangankar if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 416113483730SMike Christie return QLA_ERROR; 416213483730SMike Christie 416313483730SMike Christie if (ql4xdisablesysfsboot) { 416413483730SMike Christie ql4_printk(KERN_INFO, ha, 416513483730SMike Christie "%s: syfsboot disabled - driver will trigger login " 416613483730SMike Christie "and publish session for discovery .\n", __func__); 416713483730SMike Christie return QLA_SUCCESS; 416813483730SMike Christie } 416913483730SMike Christie 41702a991c21SManish Rangankar 41712a991c21SManish Rangankar ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 41722a991c21SManish Rangankar if (!ha->boot_kset) 41732a991c21SManish Rangankar goto kset_free; 41742a991c21SManish Rangankar 41752a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 41762a991c21SManish Rangankar goto kset_free; 41772a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 41782a991c21SManish Rangankar qla4xxx_show_boot_tgt_pri_info, 41792a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 41802a991c21SManish Rangankar qla4xxx_boot_release); 41812a991c21SManish Rangankar if (!boot_kobj) 41822a991c21SManish Rangankar goto put_host; 41832a991c21SManish Rangankar 41842a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 41852a991c21SManish Rangankar goto kset_free; 41862a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 41872a991c21SManish Rangankar qla4xxx_show_boot_tgt_sec_info, 41882a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 41892a991c21SManish Rangankar qla4xxx_boot_release); 41902a991c21SManish Rangankar if (!boot_kobj) 41912a991c21SManish Rangankar goto put_host; 41922a991c21SManish Rangankar 41932a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 41942a991c21SManish Rangankar goto kset_free; 41952a991c21SManish Rangankar boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 41962a991c21SManish Rangankar qla4xxx_show_boot_ini_info, 41972a991c21SManish Rangankar qla4xxx_ini_get_attr_visibility, 41982a991c21SManish Rangankar qla4xxx_boot_release); 41992a991c21SManish Rangankar if (!boot_kobj) 42002a991c21SManish Rangankar goto put_host; 42012a991c21SManish Rangankar 42022a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 42032a991c21SManish Rangankar goto kset_free; 42042a991c21SManish Rangankar boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 42052a991c21SManish Rangankar qla4xxx_show_boot_eth_info, 42062a991c21SManish Rangankar qla4xxx_eth_get_attr_visibility, 42072a991c21SManish Rangankar qla4xxx_boot_release); 42082a991c21SManish Rangankar if (!boot_kobj) 42092a991c21SManish Rangankar goto put_host; 42102a991c21SManish Rangankar 421113483730SMike Christie return QLA_SUCCESS; 42122a991c21SManish Rangankar 42132a991c21SManish Rangankar put_host: 42142a991c21SManish Rangankar scsi_host_put(ha->host); 42152a991c21SManish Rangankar kset_free: 42162a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 42172a991c21SManish Rangankar return -ENOMEM; 42182a991c21SManish Rangankar } 42192a991c21SManish Rangankar 42204549415aSLalit Chandivade 42214549415aSLalit Chandivade /** 42224549415aSLalit Chandivade * qla4xxx_create chap_list - Create CHAP list from FLASH 42234549415aSLalit Chandivade * @ha: pointer to adapter structure 42244549415aSLalit Chandivade * 42254549415aSLalit Chandivade * Read flash and make a list of CHAP entries, during login when a CHAP entry 42264549415aSLalit Chandivade * is received, it will be checked in this list. If entry exist then the CHAP 42274549415aSLalit Chandivade * entry index is set in the DDB. If CHAP entry does not exist in this list 42284549415aSLalit Chandivade * then a new entry is added in FLASH in CHAP table and the index obtained is 42294549415aSLalit Chandivade * used in the DDB. 42304549415aSLalit Chandivade **/ 42314549415aSLalit Chandivade static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 42324549415aSLalit Chandivade { 42334549415aSLalit Chandivade int rval = 0; 42344549415aSLalit Chandivade uint8_t *chap_flash_data = NULL; 42354549415aSLalit Chandivade uint32_t offset; 42364549415aSLalit Chandivade dma_addr_t chap_dma; 42374549415aSLalit Chandivade uint32_t chap_size = 0; 42384549415aSLalit Chandivade 42394549415aSLalit Chandivade if (is_qla40XX(ha)) 42404549415aSLalit Chandivade chap_size = MAX_CHAP_ENTRIES_40XX * 42414549415aSLalit Chandivade sizeof(struct ql4_chap_table); 42424549415aSLalit Chandivade else /* Single region contains CHAP info for both 42434549415aSLalit Chandivade * ports which is divided into half for each port. 42444549415aSLalit Chandivade */ 42454549415aSLalit Chandivade chap_size = ha->hw.flt_chap_size / 2; 42464549415aSLalit Chandivade 42474549415aSLalit Chandivade chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 42484549415aSLalit Chandivade &chap_dma, GFP_KERNEL); 42494549415aSLalit Chandivade if (!chap_flash_data) { 42504549415aSLalit Chandivade ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 42514549415aSLalit Chandivade return; 42524549415aSLalit Chandivade } 42534549415aSLalit Chandivade if (is_qla40XX(ha)) 42544549415aSLalit Chandivade offset = FLASH_CHAP_OFFSET; 42554549415aSLalit Chandivade else { 42564549415aSLalit Chandivade offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 42574549415aSLalit Chandivade if (ha->port_num == 1) 42584549415aSLalit Chandivade offset += chap_size; 42594549415aSLalit Chandivade } 42604549415aSLalit Chandivade 42614549415aSLalit Chandivade rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 42624549415aSLalit Chandivade if (rval != QLA_SUCCESS) 42634549415aSLalit Chandivade goto exit_chap_list; 42644549415aSLalit Chandivade 42654549415aSLalit Chandivade if (ha->chap_list == NULL) 42664549415aSLalit Chandivade ha->chap_list = vmalloc(chap_size); 42674549415aSLalit Chandivade if (ha->chap_list == NULL) { 42684549415aSLalit Chandivade ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 42694549415aSLalit Chandivade goto exit_chap_list; 42704549415aSLalit Chandivade } 42714549415aSLalit Chandivade 42724549415aSLalit Chandivade memcpy(ha->chap_list, chap_flash_data, chap_size); 42734549415aSLalit Chandivade 42744549415aSLalit Chandivade exit_chap_list: 42754549415aSLalit Chandivade dma_free_coherent(&ha->pdev->dev, chap_size, 42764549415aSLalit Chandivade chap_flash_data, chap_dma); 427713483730SMike Christie } 427813483730SMike Christie 427913483730SMike Christie static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 428013483730SMike Christie struct ql4_tuple_ddb *tddb) 428113483730SMike Christie { 428213483730SMike Christie struct scsi_qla_host *ha; 428313483730SMike Christie struct iscsi_cls_session *cls_sess; 428413483730SMike Christie struct iscsi_cls_conn *cls_conn; 428513483730SMike Christie struct iscsi_session *sess; 428613483730SMike Christie struct iscsi_conn *conn; 428713483730SMike Christie 428813483730SMike Christie DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 428913483730SMike Christie ha = ddb_entry->ha; 429013483730SMike Christie cls_sess = ddb_entry->sess; 429113483730SMike Christie sess = cls_sess->dd_data; 429213483730SMike Christie cls_conn = ddb_entry->conn; 429313483730SMike Christie conn = cls_conn->dd_data; 429413483730SMike Christie 429513483730SMike Christie tddb->tpgt = sess->tpgt; 429613483730SMike Christie tddb->port = conn->persistent_port; 429713483730SMike Christie strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 429813483730SMike Christie strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 429913483730SMike Christie } 430013483730SMike Christie 430113483730SMike Christie static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 430213483730SMike Christie struct ql4_tuple_ddb *tddb) 430313483730SMike Christie { 430413483730SMike Christie uint16_t options = 0; 430513483730SMike Christie 430613483730SMike Christie tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 430713483730SMike Christie memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 430813483730SMike Christie min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 430913483730SMike Christie 431013483730SMike Christie options = le16_to_cpu(fw_ddb_entry->options); 431113483730SMike Christie if (options & DDB_OPT_IPV6_DEVICE) 431213483730SMike Christie sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 431313483730SMike Christie else 431413483730SMike Christie sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 431513483730SMike Christie 431613483730SMike Christie tddb->port = le16_to_cpu(fw_ddb_entry->port); 4317173269efSManish Rangankar memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], sizeof(tddb->isid)); 431813483730SMike Christie } 431913483730SMike Christie 432013483730SMike Christie static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 432113483730SMike Christie struct ql4_tuple_ddb *old_tddb, 4322173269efSManish Rangankar struct ql4_tuple_ddb *new_tddb, 4323173269efSManish Rangankar uint8_t is_isid_compare) 432413483730SMike Christie { 432513483730SMike Christie if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 432613483730SMike Christie return QLA_ERROR; 432713483730SMike Christie 432813483730SMike Christie if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 432913483730SMike Christie return QLA_ERROR; 433013483730SMike Christie 433113483730SMike Christie if (old_tddb->port != new_tddb->port) 433213483730SMike Christie return QLA_ERROR; 433313483730SMike Christie 4334173269efSManish Rangankar /* For multi sessions, driver generates the ISID, so do not compare 433559e13d48SMasanari Iida * ISID in reset path since it would be a comparison between the 4336173269efSManish Rangankar * driver generated ISID and firmware generated ISID. This could 4337173269efSManish Rangankar * lead to adding duplicated DDBs in the list as driver generated 4338173269efSManish Rangankar * ISID would not match firmware generated ISID. 4339173269efSManish Rangankar */ 4340173269efSManish Rangankar if (is_isid_compare) { 4341173269efSManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x" 4342173269efSManish Rangankar "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n", 4343173269efSManish Rangankar __func__, old_tddb->isid[5], old_tddb->isid[4], 4344173269efSManish Rangankar old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1], 4345173269efSManish Rangankar old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4], 4346173269efSManish Rangankar new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1], 4347173269efSManish Rangankar new_tddb->isid[0])); 4348173269efSManish Rangankar 4349173269efSManish Rangankar if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 4350173269efSManish Rangankar sizeof(old_tddb->isid))) 4351173269efSManish Rangankar return QLA_ERROR; 4352173269efSManish Rangankar } 4353173269efSManish Rangankar 435413483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 435513483730SMike Christie "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 435613483730SMike Christie old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 435713483730SMike Christie old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 435813483730SMike Christie new_tddb->ip_addr, new_tddb->iscsi_name)); 435913483730SMike Christie 436013483730SMike Christie return QLA_SUCCESS; 436113483730SMike Christie } 436213483730SMike Christie 436313483730SMike Christie static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 436413483730SMike Christie struct dev_db_entry *fw_ddb_entry) 436513483730SMike Christie { 436613483730SMike Christie struct ddb_entry *ddb_entry; 436713483730SMike Christie struct ql4_tuple_ddb *fw_tddb = NULL; 436813483730SMike Christie struct ql4_tuple_ddb *tmp_tddb = NULL; 436913483730SMike Christie int idx; 437013483730SMike Christie int ret = QLA_ERROR; 437113483730SMike Christie 437213483730SMike Christie fw_tddb = vzalloc(sizeof(*fw_tddb)); 437313483730SMike Christie if (!fw_tddb) { 437413483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 437513483730SMike Christie "Memory Allocation failed.\n")); 437613483730SMike Christie ret = QLA_SUCCESS; 437713483730SMike Christie goto exit_check; 437813483730SMike Christie } 437913483730SMike Christie 438013483730SMike Christie tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 438113483730SMike Christie if (!tmp_tddb) { 438213483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 438313483730SMike Christie "Memory Allocation failed.\n")); 438413483730SMike Christie ret = QLA_SUCCESS; 438513483730SMike Christie goto exit_check; 438613483730SMike Christie } 438713483730SMike Christie 438813483730SMike Christie qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb); 438913483730SMike Christie 439013483730SMike Christie for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 439113483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 439213483730SMike Christie if (ddb_entry == NULL) 439313483730SMike Christie continue; 439413483730SMike Christie 439513483730SMike Christie qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 4396173269efSManish Rangankar if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 439713483730SMike Christie ret = QLA_SUCCESS; /* found */ 439813483730SMike Christie goto exit_check; 439913483730SMike Christie } 440013483730SMike Christie } 440113483730SMike Christie 440213483730SMike Christie exit_check: 440313483730SMike Christie if (fw_tddb) 440413483730SMike Christie vfree(fw_tddb); 440513483730SMike Christie if (tmp_tddb) 440613483730SMike Christie vfree(tmp_tddb); 440713483730SMike Christie return ret; 440813483730SMike Christie } 440913483730SMike Christie 441013483730SMike Christie static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 441113483730SMike Christie struct list_head *list_nt, 441213483730SMike Christie struct dev_db_entry *fw_ddb_entry) 441313483730SMike Christie { 441413483730SMike Christie struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 441513483730SMike Christie struct ql4_tuple_ddb *fw_tddb = NULL; 441613483730SMike Christie struct ql4_tuple_ddb *tmp_tddb = NULL; 441713483730SMike Christie int ret = QLA_ERROR; 441813483730SMike Christie 441913483730SMike Christie fw_tddb = vzalloc(sizeof(*fw_tddb)); 442013483730SMike Christie if (!fw_tddb) { 442113483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 442213483730SMike Christie "Memory Allocation failed.\n")); 442313483730SMike Christie ret = QLA_SUCCESS; 442413483730SMike Christie goto exit_check; 442513483730SMike Christie } 442613483730SMike Christie 442713483730SMike Christie tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 442813483730SMike Christie if (!tmp_tddb) { 442913483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 443013483730SMike Christie "Memory Allocation failed.\n")); 443113483730SMike Christie ret = QLA_SUCCESS; 443213483730SMike Christie goto exit_check; 443313483730SMike Christie } 443413483730SMike Christie 443513483730SMike Christie qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb); 443613483730SMike Christie 443713483730SMike Christie list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 443813483730SMike Christie qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb); 4439173269efSManish Rangankar if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true)) { 444013483730SMike Christie ret = QLA_SUCCESS; /* found */ 444113483730SMike Christie goto exit_check; 444213483730SMike Christie } 444313483730SMike Christie } 444413483730SMike Christie 444513483730SMike Christie exit_check: 444613483730SMike Christie if (fw_tddb) 444713483730SMike Christie vfree(fw_tddb); 444813483730SMike Christie if (tmp_tddb) 444913483730SMike Christie vfree(tmp_tddb); 445013483730SMike Christie return ret; 445113483730SMike Christie } 445213483730SMike Christie 44534a4bc2e9SLalit Chandivade static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 445413483730SMike Christie { 44554a4bc2e9SLalit Chandivade struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 445613483730SMike Christie 44574a4bc2e9SLalit Chandivade list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 44584a4bc2e9SLalit Chandivade list_del_init(&ddb_idx->list); 44594a4bc2e9SLalit Chandivade vfree(ddb_idx); 446013483730SMike Christie } 446113483730SMike Christie } 446213483730SMike Christie 446313483730SMike Christie static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 446413483730SMike Christie struct dev_db_entry *fw_ddb_entry) 446513483730SMike Christie { 446613483730SMike Christie struct iscsi_endpoint *ep; 446713483730SMike Christie struct sockaddr_in *addr; 446813483730SMike Christie struct sockaddr_in6 *addr6; 446913483730SMike Christie struct sockaddr *dst_addr; 447013483730SMike Christie char *ip; 447113483730SMike Christie 447213483730SMike Christie /* TODO: need to destroy on unload iscsi_endpoint*/ 447313483730SMike Christie dst_addr = vmalloc(sizeof(*dst_addr)); 447413483730SMike Christie if (!dst_addr) 447513483730SMike Christie return NULL; 447613483730SMike Christie 447713483730SMike Christie if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 447813483730SMike Christie dst_addr->sa_family = AF_INET6; 447913483730SMike Christie addr6 = (struct sockaddr_in6 *)dst_addr; 448013483730SMike Christie ip = (char *)&addr6->sin6_addr; 448113483730SMike Christie memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 448213483730SMike Christie addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 448313483730SMike Christie 448413483730SMike Christie } else { 448513483730SMike Christie dst_addr->sa_family = AF_INET; 448613483730SMike Christie addr = (struct sockaddr_in *)dst_addr; 448713483730SMike Christie ip = (char *)&addr->sin_addr; 448813483730SMike Christie memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 448913483730SMike Christie addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 449013483730SMike Christie } 449113483730SMike Christie 449213483730SMike Christie ep = qla4xxx_ep_connect(ha->host, dst_addr, 0); 449313483730SMike Christie vfree(dst_addr); 449413483730SMike Christie return ep; 449513483730SMike Christie } 449613483730SMike Christie 449713483730SMike Christie static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 449813483730SMike Christie { 449913483730SMike Christie if (ql4xdisablesysfsboot) 450013483730SMike Christie return QLA_SUCCESS; 450113483730SMike Christie if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 450213483730SMike Christie return QLA_ERROR; 450313483730SMike Christie return QLA_SUCCESS; 450413483730SMike Christie } 450513483730SMike Christie 450613483730SMike Christie static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 450713483730SMike Christie struct ddb_entry *ddb_entry) 450813483730SMike Christie { 4509c28eaacaSNilesh Javali uint16_t def_timeout; 4510c28eaacaSNilesh Javali 451113483730SMike Christie ddb_entry->ddb_type = FLASH_DDB; 451213483730SMike Christie ddb_entry->fw_ddb_index = INVALID_ENTRY; 451313483730SMike Christie ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 451413483730SMike Christie ddb_entry->ha = ha; 451513483730SMike Christie ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 451613483730SMike Christie ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 451713483730SMike Christie 451813483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 451913483730SMike Christie atomic_set(&ddb_entry->relogin_timer, 0); 452013483730SMike Christie atomic_set(&ddb_entry->relogin_retry_count, 0); 4521c28eaacaSNilesh Javali def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 452213483730SMike Christie ddb_entry->default_relogin_timeout = 4523c28eaacaSNilesh Javali (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 4524c28eaacaSNilesh Javali def_timeout : LOGIN_TOV; 452513483730SMike Christie ddb_entry->default_time2wait = 452613483730SMike Christie le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 452713483730SMike Christie } 452813483730SMike Christie 452913483730SMike Christie static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 453013483730SMike Christie { 453113483730SMike Christie uint32_t idx = 0; 453213483730SMike Christie uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 453313483730SMike Christie uint32_t sts[MBOX_REG_COUNT]; 453413483730SMike Christie uint32_t ip_state; 453513483730SMike Christie unsigned long wtime; 453613483730SMike Christie int ret; 453713483730SMike Christie 453813483730SMike Christie wtime = jiffies + (HZ * IP_CONFIG_TOV); 453913483730SMike Christie do { 454013483730SMike Christie for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 454113483730SMike Christie if (ip_idx[idx] == -1) 454213483730SMike Christie continue; 454313483730SMike Christie 454413483730SMike Christie ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 454513483730SMike Christie 454613483730SMike Christie if (ret == QLA_ERROR) { 454713483730SMike Christie ip_idx[idx] = -1; 454813483730SMike Christie continue; 454913483730SMike Christie } 455013483730SMike Christie 455113483730SMike Christie ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 455213483730SMike Christie 455313483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 455413483730SMike Christie "Waiting for IP state for idx = %d, state = 0x%x\n", 455513483730SMike Christie ip_idx[idx], ip_state)); 455613483730SMike Christie if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 455713483730SMike Christie ip_state == IP_ADDRSTATE_INVALID || 455813483730SMike Christie ip_state == IP_ADDRSTATE_PREFERRED || 455913483730SMike Christie ip_state == IP_ADDRSTATE_DEPRICATED || 456013483730SMike Christie ip_state == IP_ADDRSTATE_DISABLING) 456113483730SMike Christie ip_idx[idx] = -1; 456213483730SMike Christie } 456313483730SMike Christie 456413483730SMike Christie /* Break if all IP states checked */ 456513483730SMike Christie if ((ip_idx[0] == -1) && 456613483730SMike Christie (ip_idx[1] == -1) && 456713483730SMike Christie (ip_idx[2] == -1) && 456813483730SMike Christie (ip_idx[3] == -1)) 456913483730SMike Christie break; 457013483730SMike Christie schedule_timeout_uninterruptible(HZ); 457113483730SMike Christie } while (time_after(wtime, jiffies)); 457213483730SMike Christie } 457313483730SMike Christie 45744a4bc2e9SLalit Chandivade static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 45754a4bc2e9SLalit Chandivade struct list_head *list_st) 457613483730SMike Christie { 45774a4bc2e9SLalit Chandivade struct qla_ddb_index *st_ddb_idx; 457813483730SMike Christie int max_ddbs; 45794a4bc2e9SLalit Chandivade int fw_idx_size; 45804a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry; 45814a4bc2e9SLalit Chandivade dma_addr_t fw_ddb_dma; 458213483730SMike Christie int ret; 458313483730SMike Christie uint32_t idx = 0, next_idx = 0; 458413483730SMike Christie uint32_t state = 0, conn_err = 0; 45854a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 458613483730SMike Christie 458713483730SMike Christie fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 458813483730SMike Christie &fw_ddb_dma); 458913483730SMike Christie if (fw_ddb_entry == NULL) { 459013483730SMike Christie DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 45914a4bc2e9SLalit Chandivade goto exit_st_list; 459213483730SMike Christie } 459313483730SMike Christie 45944a4bc2e9SLalit Chandivade max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 45954a4bc2e9SLalit Chandivade MAX_DEV_DB_ENTRIES; 459613483730SMike Christie fw_idx_size = sizeof(struct qla_ddb_index); 459713483730SMike Christie 459813483730SMike Christie for (idx = 0; idx < max_ddbs; idx = next_idx) { 45994a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 46004a4bc2e9SLalit Chandivade NULL, &next_idx, &state, 46014a4bc2e9SLalit Chandivade &conn_err, NULL, &conn_id); 460213483730SMike Christie if (ret == QLA_ERROR) 460313483730SMike Christie break; 460413483730SMike Christie 4605981c982cSLalit Chandivade /* Ignore DDB if invalid state (unassigned) */ 4606981c982cSLalit Chandivade if (state == DDB_DS_UNASSIGNED) 4607981c982cSLalit Chandivade goto continue_next_st; 4608981c982cSLalit Chandivade 460913483730SMike Christie /* Check if ST, add to the list_st */ 461013483730SMike Christie if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 461113483730SMike Christie goto continue_next_st; 461213483730SMike Christie 461313483730SMike Christie st_ddb_idx = vzalloc(fw_idx_size); 461413483730SMike Christie if (!st_ddb_idx) 461513483730SMike Christie break; 461613483730SMike Christie 461713483730SMike Christie st_ddb_idx->fw_ddb_idx = idx; 461813483730SMike Christie 46194a4bc2e9SLalit Chandivade list_add_tail(&st_ddb_idx->list, list_st); 462013483730SMike Christie continue_next_st: 462113483730SMike Christie if (next_idx == 0) 462213483730SMike Christie break; 462313483730SMike Christie } 462413483730SMike Christie 46254a4bc2e9SLalit Chandivade exit_st_list: 46264a4bc2e9SLalit Chandivade if (fw_ddb_entry) 46274a4bc2e9SLalit Chandivade dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 46284a4bc2e9SLalit Chandivade } 46294a4bc2e9SLalit Chandivade 46304a4bc2e9SLalit Chandivade /** 46314a4bc2e9SLalit Chandivade * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 46324a4bc2e9SLalit Chandivade * @ha: pointer to adapter structure 46334a4bc2e9SLalit Chandivade * @list_ddb: List from which failed ddb to be removed 46344a4bc2e9SLalit Chandivade * 46354a4bc2e9SLalit Chandivade * Iterate over the list of DDBs and find and remove DDBs that are either in 46364a4bc2e9SLalit Chandivade * no connection active state or failed state 46374a4bc2e9SLalit Chandivade **/ 46384a4bc2e9SLalit Chandivade static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 46394a4bc2e9SLalit Chandivade struct list_head *list_ddb) 46404a4bc2e9SLalit Chandivade { 46414a4bc2e9SLalit Chandivade struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 46424a4bc2e9SLalit Chandivade uint32_t next_idx = 0; 46434a4bc2e9SLalit Chandivade uint32_t state = 0, conn_err = 0; 46444a4bc2e9SLalit Chandivade int ret; 46454a4bc2e9SLalit Chandivade 46464a4bc2e9SLalit Chandivade list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 46474a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 46484a4bc2e9SLalit Chandivade NULL, 0, NULL, &next_idx, &state, 46494a4bc2e9SLalit Chandivade &conn_err, NULL, NULL); 46504a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 46514a4bc2e9SLalit Chandivade continue; 46524a4bc2e9SLalit Chandivade 46534a4bc2e9SLalit Chandivade if (state == DDB_DS_NO_CONNECTION_ACTIVE || 46544a4bc2e9SLalit Chandivade state == DDB_DS_SESSION_FAILED) { 46554a4bc2e9SLalit Chandivade list_del_init(&ddb_idx->list); 46564a4bc2e9SLalit Chandivade vfree(ddb_idx); 46574a4bc2e9SLalit Chandivade } 46584a4bc2e9SLalit Chandivade } 46594a4bc2e9SLalit Chandivade } 46604a4bc2e9SLalit Chandivade 46614a4bc2e9SLalit Chandivade static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 46624a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry, 46634a4bc2e9SLalit Chandivade int is_reset) 46644a4bc2e9SLalit Chandivade { 46654a4bc2e9SLalit Chandivade struct iscsi_cls_session *cls_sess; 46664a4bc2e9SLalit Chandivade struct iscsi_session *sess; 46674a4bc2e9SLalit Chandivade struct iscsi_cls_conn *cls_conn; 46684a4bc2e9SLalit Chandivade struct iscsi_endpoint *ep; 46694a4bc2e9SLalit Chandivade uint16_t cmds_max = 32; 46704a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 46714a4bc2e9SLalit Chandivade uint32_t initial_cmdsn = 0; 46724a4bc2e9SLalit Chandivade int ret = QLA_SUCCESS; 46734a4bc2e9SLalit Chandivade 46744a4bc2e9SLalit Chandivade struct ddb_entry *ddb_entry = NULL; 46754a4bc2e9SLalit Chandivade 46764a4bc2e9SLalit Chandivade /* Create session object, with INVALID_ENTRY, 46774a4bc2e9SLalit Chandivade * the targer_id would get set when we issue the login 46784a4bc2e9SLalit Chandivade */ 46794a4bc2e9SLalit Chandivade cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 46804a4bc2e9SLalit Chandivade cmds_max, sizeof(struct ddb_entry), 46814a4bc2e9SLalit Chandivade sizeof(struct ql4_task_data), 46824a4bc2e9SLalit Chandivade initial_cmdsn, INVALID_ENTRY); 46834a4bc2e9SLalit Chandivade if (!cls_sess) { 46844a4bc2e9SLalit Chandivade ret = QLA_ERROR; 46854a4bc2e9SLalit Chandivade goto exit_setup; 46864a4bc2e9SLalit Chandivade } 46874a4bc2e9SLalit Chandivade 46884a4bc2e9SLalit Chandivade /* 46894a4bc2e9SLalit Chandivade * so calling module_put function to decrement the 46904a4bc2e9SLalit Chandivade * reference count. 46914a4bc2e9SLalit Chandivade **/ 46924a4bc2e9SLalit Chandivade module_put(qla4xxx_iscsi_transport.owner); 46934a4bc2e9SLalit Chandivade sess = cls_sess->dd_data; 46944a4bc2e9SLalit Chandivade ddb_entry = sess->dd_data; 46954a4bc2e9SLalit Chandivade ddb_entry->sess = cls_sess; 46964a4bc2e9SLalit Chandivade 46974a4bc2e9SLalit Chandivade cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 46984a4bc2e9SLalit Chandivade memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 46994a4bc2e9SLalit Chandivade sizeof(struct dev_db_entry)); 47004a4bc2e9SLalit Chandivade 47014a4bc2e9SLalit Chandivade qla4xxx_setup_flash_ddb_entry(ha, ddb_entry); 47024a4bc2e9SLalit Chandivade 47034a4bc2e9SLalit Chandivade cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 47044a4bc2e9SLalit Chandivade 47054a4bc2e9SLalit Chandivade if (!cls_conn) { 47064a4bc2e9SLalit Chandivade ret = QLA_ERROR; 47074a4bc2e9SLalit Chandivade goto exit_setup; 47084a4bc2e9SLalit Chandivade } 47094a4bc2e9SLalit Chandivade 47104a4bc2e9SLalit Chandivade ddb_entry->conn = cls_conn; 47114a4bc2e9SLalit Chandivade 47124a4bc2e9SLalit Chandivade /* Setup ep, for displaying attributes in sysfs */ 47134a4bc2e9SLalit Chandivade ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 47144a4bc2e9SLalit Chandivade if (ep) { 47154a4bc2e9SLalit Chandivade ep->conn = cls_conn; 47164a4bc2e9SLalit Chandivade cls_conn->ep = ep; 47174a4bc2e9SLalit Chandivade } else { 47184a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 47194a4bc2e9SLalit Chandivade ret = QLA_ERROR; 47204a4bc2e9SLalit Chandivade goto exit_setup; 47214a4bc2e9SLalit Chandivade } 47224a4bc2e9SLalit Chandivade 47234a4bc2e9SLalit Chandivade /* Update sess/conn params */ 47244a4bc2e9SLalit Chandivade qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 47254a4bc2e9SLalit Chandivade 47264a4bc2e9SLalit Chandivade if (is_reset == RESET_ADAPTER) { 47274a4bc2e9SLalit Chandivade iscsi_block_session(cls_sess); 47284a4bc2e9SLalit Chandivade /* Use the relogin path to discover new devices 47294a4bc2e9SLalit Chandivade * by short-circuting the logic of setting 47304a4bc2e9SLalit Chandivade * timer to relogin - instead set the flags 47314a4bc2e9SLalit Chandivade * to initiate login right away. 47324a4bc2e9SLalit Chandivade */ 47334a4bc2e9SLalit Chandivade set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 47344a4bc2e9SLalit Chandivade set_bit(DF_RELOGIN, &ddb_entry->flags); 47354a4bc2e9SLalit Chandivade } 47364a4bc2e9SLalit Chandivade 47374a4bc2e9SLalit Chandivade exit_setup: 47384a4bc2e9SLalit Chandivade return ret; 47394a4bc2e9SLalit Chandivade } 47404a4bc2e9SLalit Chandivade 47414a4bc2e9SLalit Chandivade static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 47424a4bc2e9SLalit Chandivade struct list_head *list_nt, int is_reset) 47434a4bc2e9SLalit Chandivade { 47444a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry; 47454a4bc2e9SLalit Chandivade dma_addr_t fw_ddb_dma; 47464a4bc2e9SLalit Chandivade int max_ddbs; 47474a4bc2e9SLalit Chandivade int fw_idx_size; 47484a4bc2e9SLalit Chandivade int ret; 47494a4bc2e9SLalit Chandivade uint32_t idx = 0, next_idx = 0; 47504a4bc2e9SLalit Chandivade uint32_t state = 0, conn_err = 0; 47514a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 47524a4bc2e9SLalit Chandivade struct qla_ddb_index *nt_ddb_idx; 47534a4bc2e9SLalit Chandivade 47544a4bc2e9SLalit Chandivade fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 47554a4bc2e9SLalit Chandivade &fw_ddb_dma); 47564a4bc2e9SLalit Chandivade if (fw_ddb_entry == NULL) { 47574a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 47584a4bc2e9SLalit Chandivade goto exit_nt_list; 47594a4bc2e9SLalit Chandivade } 47604a4bc2e9SLalit Chandivade max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 47614a4bc2e9SLalit Chandivade MAX_DEV_DB_ENTRIES; 47624a4bc2e9SLalit Chandivade fw_idx_size = sizeof(struct qla_ddb_index); 47634a4bc2e9SLalit Chandivade 47644a4bc2e9SLalit Chandivade for (idx = 0; idx < max_ddbs; idx = next_idx) { 47654a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 47664a4bc2e9SLalit Chandivade NULL, &next_idx, &state, 47674a4bc2e9SLalit Chandivade &conn_err, NULL, &conn_id); 47684a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 47694a4bc2e9SLalit Chandivade break; 47704a4bc2e9SLalit Chandivade 47714a4bc2e9SLalit Chandivade if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 47724a4bc2e9SLalit Chandivade goto continue_next_nt; 47734a4bc2e9SLalit Chandivade 47744a4bc2e9SLalit Chandivade /* Check if NT, then add to list it */ 47754a4bc2e9SLalit Chandivade if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 47764a4bc2e9SLalit Chandivade goto continue_next_nt; 47774a4bc2e9SLalit Chandivade 47784a4bc2e9SLalit Chandivade if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 47794a4bc2e9SLalit Chandivade state == DDB_DS_SESSION_FAILED)) 47804a4bc2e9SLalit Chandivade goto continue_next_nt; 47814a4bc2e9SLalit Chandivade 47824a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_INFO, ha, 47834a4bc2e9SLalit Chandivade "Adding DDB to session = 0x%x\n", idx)); 47844a4bc2e9SLalit Chandivade if (is_reset == INIT_ADAPTER) { 47854a4bc2e9SLalit Chandivade nt_ddb_idx = vmalloc(fw_idx_size); 47864a4bc2e9SLalit Chandivade if (!nt_ddb_idx) 47874a4bc2e9SLalit Chandivade break; 47884a4bc2e9SLalit Chandivade 47894a4bc2e9SLalit Chandivade nt_ddb_idx->fw_ddb_idx = idx; 47904a4bc2e9SLalit Chandivade 47914a4bc2e9SLalit Chandivade memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 47924a4bc2e9SLalit Chandivade sizeof(struct dev_db_entry)); 47934a4bc2e9SLalit Chandivade 47944a4bc2e9SLalit Chandivade if (qla4xxx_is_flash_ddb_exists(ha, list_nt, 47954a4bc2e9SLalit Chandivade fw_ddb_entry) == QLA_SUCCESS) { 47964a4bc2e9SLalit Chandivade vfree(nt_ddb_idx); 47974a4bc2e9SLalit Chandivade goto continue_next_nt; 47984a4bc2e9SLalit Chandivade } 47994a4bc2e9SLalit Chandivade list_add_tail(&nt_ddb_idx->list, list_nt); 48004a4bc2e9SLalit Chandivade } else if (is_reset == RESET_ADAPTER) { 48014a4bc2e9SLalit Chandivade if (qla4xxx_is_session_exists(ha, fw_ddb_entry) == 48024a4bc2e9SLalit Chandivade QLA_SUCCESS) 48034a4bc2e9SLalit Chandivade goto continue_next_nt; 48044a4bc2e9SLalit Chandivade } 48054a4bc2e9SLalit Chandivade 48064a4bc2e9SLalit Chandivade ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset); 48074a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 48084a4bc2e9SLalit Chandivade goto exit_nt_list; 48094a4bc2e9SLalit Chandivade 48104a4bc2e9SLalit Chandivade continue_next_nt: 48114a4bc2e9SLalit Chandivade if (next_idx == 0) 48124a4bc2e9SLalit Chandivade break; 48134a4bc2e9SLalit Chandivade } 48144a4bc2e9SLalit Chandivade 48154a4bc2e9SLalit Chandivade exit_nt_list: 48164a4bc2e9SLalit Chandivade if (fw_ddb_entry) 48174a4bc2e9SLalit Chandivade dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 48184a4bc2e9SLalit Chandivade } 48194a4bc2e9SLalit Chandivade 48204a4bc2e9SLalit Chandivade /** 48214a4bc2e9SLalit Chandivade * qla4xxx_build_ddb_list - Build ddb list and setup sessions 48224a4bc2e9SLalit Chandivade * @ha: pointer to adapter structure 48234a4bc2e9SLalit Chandivade * @is_reset: Is this init path or reset path 48244a4bc2e9SLalit Chandivade * 48254a4bc2e9SLalit Chandivade * Create a list of sendtargets (st) from firmware DDBs, issue send targets 48264a4bc2e9SLalit Chandivade * using connection open, then create the list of normal targets (nt) 48274a4bc2e9SLalit Chandivade * from firmware DDBs. Based on the list of nt setup session and connection 48284a4bc2e9SLalit Chandivade * objects. 48294a4bc2e9SLalit Chandivade **/ 48304a4bc2e9SLalit Chandivade void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 48314a4bc2e9SLalit Chandivade { 48324a4bc2e9SLalit Chandivade uint16_t tmo = 0; 48334a4bc2e9SLalit Chandivade struct list_head list_st, list_nt; 48344a4bc2e9SLalit Chandivade struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 48354a4bc2e9SLalit Chandivade unsigned long wtime; 48364a4bc2e9SLalit Chandivade 48374a4bc2e9SLalit Chandivade if (!test_bit(AF_LINK_UP, &ha->flags)) { 48384a4bc2e9SLalit Chandivade set_bit(AF_BUILD_DDB_LIST, &ha->flags); 48394a4bc2e9SLalit Chandivade ha->is_reset = is_reset; 48404a4bc2e9SLalit Chandivade return; 48414a4bc2e9SLalit Chandivade } 48424a4bc2e9SLalit Chandivade 48434a4bc2e9SLalit Chandivade INIT_LIST_HEAD(&list_st); 48444a4bc2e9SLalit Chandivade INIT_LIST_HEAD(&list_nt); 48454a4bc2e9SLalit Chandivade 48464a4bc2e9SLalit Chandivade qla4xxx_build_st_list(ha, &list_st); 48474a4bc2e9SLalit Chandivade 484813483730SMike Christie /* Before issuing conn open mbox, ensure all IPs states are configured 484913483730SMike Christie * Note, conn open fails if IPs are not configured 485013483730SMike Christie */ 485113483730SMike Christie qla4xxx_wait_for_ip_configuration(ha); 485213483730SMike Christie 485313483730SMike Christie /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 485413483730SMike Christie list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 485513483730SMike Christie qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 485613483730SMike Christie } 485713483730SMike Christie 485813483730SMike Christie /* Wait to ensure all sendtargets are done for min 12 sec wait */ 4859c28eaacaSNilesh Javali tmo = ((ha->def_timeout > LOGIN_TOV) && 4860c28eaacaSNilesh Javali (ha->def_timeout < LOGIN_TOV * 10) ? 4861c28eaacaSNilesh Javali ha->def_timeout : LOGIN_TOV); 4862c28eaacaSNilesh Javali 486313483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 486413483730SMike Christie "Default time to wait for build ddb %d\n", tmo)); 486513483730SMike Christie 486613483730SMike Christie wtime = jiffies + (HZ * tmo); 486713483730SMike Christie do { 4868f1f2e60eSNilesh Javali if (list_empty(&list_st)) 4869f1f2e60eSNilesh Javali break; 4870f1f2e60eSNilesh Javali 48714a4bc2e9SLalit Chandivade qla4xxx_remove_failed_ddb(ha, &list_st); 487213483730SMike Christie schedule_timeout_uninterruptible(HZ / 10); 487313483730SMike Christie } while (time_after(wtime, jiffies)); 487413483730SMike Christie 487513483730SMike Christie /* Free up the sendtargets list */ 48764a4bc2e9SLalit Chandivade qla4xxx_free_ddb_list(&list_st); 487713483730SMike Christie 48784a4bc2e9SLalit Chandivade qla4xxx_build_nt_list(ha, &list_nt, is_reset); 487913483730SMike Christie 48804a4bc2e9SLalit Chandivade qla4xxx_free_ddb_list(&list_nt); 488113483730SMike Christie 488213483730SMike Christie qla4xxx_free_ddb_index(ha); 488313483730SMike Christie } 488413483730SMike Christie 4885afaf5a2dSDavid Somayajulu /** 4886afaf5a2dSDavid Somayajulu * qla4xxx_probe_adapter - callback function to probe HBA 4887afaf5a2dSDavid Somayajulu * @pdev: pointer to pci_dev structure 4888afaf5a2dSDavid Somayajulu * @pci_device_id: pointer to pci_device entry 4889afaf5a2dSDavid Somayajulu * 4890afaf5a2dSDavid Somayajulu * This routine will probe for Qlogic 4xxx iSCSI host adapters. 4891afaf5a2dSDavid Somayajulu * It returns zero if successful. It also initializes all data necessary for 4892afaf5a2dSDavid Somayajulu * the driver. 4893afaf5a2dSDavid Somayajulu **/ 4894afaf5a2dSDavid Somayajulu static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, 4895afaf5a2dSDavid Somayajulu const struct pci_device_id *ent) 4896afaf5a2dSDavid Somayajulu { 4897afaf5a2dSDavid Somayajulu int ret = -ENODEV, status; 4898afaf5a2dSDavid Somayajulu struct Scsi_Host *host; 4899afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 4900afaf5a2dSDavid Somayajulu uint8_t init_retry_count = 0; 4901afaf5a2dSDavid Somayajulu char buf[34]; 4902f4f5df23SVikas Chaudhary struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 4903f9880e76SPrasanna Mumbai uint32_t dev_state; 4904afaf5a2dSDavid Somayajulu 4905afaf5a2dSDavid Somayajulu if (pci_enable_device(pdev)) 4906afaf5a2dSDavid Somayajulu return -1; 4907afaf5a2dSDavid Somayajulu 4908b3a271a9SManish Rangankar host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 4909afaf5a2dSDavid Somayajulu if (host == NULL) { 4910afaf5a2dSDavid Somayajulu printk(KERN_WARNING 4911afaf5a2dSDavid Somayajulu "qla4xxx: Couldn't allocate host from scsi layer!\n"); 4912afaf5a2dSDavid Somayajulu goto probe_disable_device; 4913afaf5a2dSDavid Somayajulu } 4914afaf5a2dSDavid Somayajulu 4915afaf5a2dSDavid Somayajulu /* Clear our data area */ 4916b3a271a9SManish Rangankar ha = to_qla_host(host); 4917afaf5a2dSDavid Somayajulu memset(ha, 0, sizeof(*ha)); 4918afaf5a2dSDavid Somayajulu 4919afaf5a2dSDavid Somayajulu /* Save the information from PCI BIOS. */ 4920afaf5a2dSDavid Somayajulu ha->pdev = pdev; 4921afaf5a2dSDavid Somayajulu ha->host = host; 4922afaf5a2dSDavid Somayajulu ha->host_no = host->host_no; 4923afaf5a2dSDavid Somayajulu 49242232be0dSLalit Chandivade pci_enable_pcie_error_reporting(pdev); 49252232be0dSLalit Chandivade 4926f4f5df23SVikas Chaudhary /* Setup Runtime configurable options */ 4927f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 4928f4f5df23SVikas Chaudhary ha->isp_ops = &qla4_8xxx_isp_ops; 4929f4f5df23SVikas Chaudhary rwlock_init(&ha->hw_lock); 4930f4f5df23SVikas Chaudhary ha->qdr_sn_window = -1; 4931f4f5df23SVikas Chaudhary ha->ddr_mn_window = -1; 4932f4f5df23SVikas Chaudhary ha->curr_window = 255; 4933f4f5df23SVikas Chaudhary ha->func_num = PCI_FUNC(ha->pdev->devfn); 4934f4f5df23SVikas Chaudhary nx_legacy_intr = &legacy_intr[ha->func_num]; 4935f4f5df23SVikas Chaudhary ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 4936f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_status_reg = 4937f4f5df23SVikas Chaudhary nx_legacy_intr->tgt_status_reg; 4938f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 4939f4f5df23SVikas Chaudhary ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 4940f4f5df23SVikas Chaudhary } else { 4941f4f5df23SVikas Chaudhary ha->isp_ops = &qla4xxx_isp_ops; 4942f4f5df23SVikas Chaudhary } 4943f4f5df23SVikas Chaudhary 49442232be0dSLalit Chandivade /* Set EEH reset type to fundamental if required by hba */ 49452232be0dSLalit Chandivade if (is_qla8022(ha)) 49462232be0dSLalit Chandivade pdev->needs_freset = 1; 49472232be0dSLalit Chandivade 4948afaf5a2dSDavid Somayajulu /* Configure PCI I/O space. */ 4949f4f5df23SVikas Chaudhary ret = ha->isp_ops->iospace_config(ha); 4950afaf5a2dSDavid Somayajulu if (ret) 4951f4f5df23SVikas Chaudhary goto probe_failed_ioconfig; 4952afaf5a2dSDavid Somayajulu 4953c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 4954afaf5a2dSDavid Somayajulu pdev->device, pdev->irq, ha->reg); 4955afaf5a2dSDavid Somayajulu 4956afaf5a2dSDavid Somayajulu qla4xxx_config_dma_addressing(ha); 4957afaf5a2dSDavid Somayajulu 4958afaf5a2dSDavid Somayajulu /* Initialize lists and spinlocks. */ 4959afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->free_srb_q); 4960afaf5a2dSDavid Somayajulu 4961afaf5a2dSDavid Somayajulu mutex_init(&ha->mbox_sem); 49624549415aSLalit Chandivade mutex_init(&ha->chap_sem); 4963f4f5df23SVikas Chaudhary init_completion(&ha->mbx_intr_comp); 496495d31262SVikas Chaudhary init_completion(&ha->disable_acb_comp); 4965afaf5a2dSDavid Somayajulu 4966afaf5a2dSDavid Somayajulu spin_lock_init(&ha->hardware_lock); 4967afaf5a2dSDavid Somayajulu 4968ff884430SVikas Chaudhary /* Initialize work list */ 4969ff884430SVikas Chaudhary INIT_LIST_HEAD(&ha->work_list); 4970ff884430SVikas Chaudhary 4971afaf5a2dSDavid Somayajulu /* Allocate dma buffers */ 4972afaf5a2dSDavid Somayajulu if (qla4xxx_mem_alloc(ha)) { 4973c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 4974afaf5a2dSDavid Somayajulu "[ERROR] Failed to allocate memory for adapter\n"); 4975afaf5a2dSDavid Somayajulu 4976afaf5a2dSDavid Somayajulu ret = -ENOMEM; 4977afaf5a2dSDavid Somayajulu goto probe_failed; 4978afaf5a2dSDavid Somayajulu } 4979afaf5a2dSDavid Somayajulu 4980b3a271a9SManish Rangankar host->cmd_per_lun = 3; 4981b3a271a9SManish Rangankar host->max_channel = 0; 4982b3a271a9SManish Rangankar host->max_lun = MAX_LUNS - 1; 4983b3a271a9SManish Rangankar host->max_id = MAX_TARGETS; 4984b3a271a9SManish Rangankar host->max_cmd_len = IOCB_MAX_CDB_LEN; 4985b3a271a9SManish Rangankar host->can_queue = MAX_SRBS ; 4986b3a271a9SManish Rangankar host->transportt = qla4xxx_scsi_transport; 4987b3a271a9SManish Rangankar 4988b3a271a9SManish Rangankar ret = scsi_init_shared_tag_map(host, MAX_SRBS); 4989b3a271a9SManish Rangankar if (ret) { 4990b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 4991b3a271a9SManish Rangankar "%s: scsi_init_shared_tag_map failed\n", __func__); 4992b3a271a9SManish Rangankar goto probe_failed; 4993b3a271a9SManish Rangankar } 4994b3a271a9SManish Rangankar 4995b3a271a9SManish Rangankar pci_set_drvdata(pdev, ha); 4996b3a271a9SManish Rangankar 4997b3a271a9SManish Rangankar ret = scsi_add_host(host, &pdev->dev); 4998b3a271a9SManish Rangankar if (ret) 4999b3a271a9SManish Rangankar goto probe_failed; 5000b3a271a9SManish Rangankar 5001f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 5002f4f5df23SVikas Chaudhary (void) qla4_8xxx_get_flash_info(ha); 5003f4f5df23SVikas Chaudhary 5004afaf5a2dSDavid Somayajulu /* 5005afaf5a2dSDavid Somayajulu * Initialize the Host adapter request/response queues and 5006afaf5a2dSDavid Somayajulu * firmware 5007afaf5a2dSDavid Somayajulu * NOTE: interrupts enabled upon successful completion 5008afaf5a2dSDavid Somayajulu */ 500913483730SMike Christie status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 5010f4f5df23SVikas Chaudhary while ((!test_bit(AF_ONLINE, &ha->flags)) && 5011f4f5df23SVikas Chaudhary init_retry_count++ < MAX_INIT_RETRIES) { 5012f9880e76SPrasanna Mumbai 5013f9880e76SPrasanna Mumbai if (is_qla8022(ha)) { 5014f9880e76SPrasanna Mumbai qla4_8xxx_idc_lock(ha); 5015f9880e76SPrasanna Mumbai dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 5016f9880e76SPrasanna Mumbai qla4_8xxx_idc_unlock(ha); 5017f9880e76SPrasanna Mumbai if (dev_state == QLA82XX_DEV_FAILED) { 5018f9880e76SPrasanna Mumbai ql4_printk(KERN_WARNING, ha, "%s: don't retry " 5019f9880e76SPrasanna Mumbai "initialize adapter. H/W is in failed state\n", 5020f9880e76SPrasanna Mumbai __func__); 5021f9880e76SPrasanna Mumbai break; 5022f9880e76SPrasanna Mumbai } 5023f9880e76SPrasanna Mumbai } 5024afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: retrying adapter initialization " 5025afaf5a2dSDavid Somayajulu "(%d)\n", __func__, init_retry_count)); 5026f4f5df23SVikas Chaudhary 5027f4f5df23SVikas Chaudhary if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 5028f4f5df23SVikas Chaudhary continue; 5029f4f5df23SVikas Chaudhary 503013483730SMike Christie status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 5031afaf5a2dSDavid Somayajulu } 5032f4f5df23SVikas Chaudhary 5033f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags)) { 5034c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 5035afaf5a2dSDavid Somayajulu 5036fe998527SLalit Chandivade if (is_qla8022(ha) && ql4xdontresethba) { 5037fe998527SLalit Chandivade /* Put the device in failed state. */ 5038fe998527SLalit Chandivade DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 5039fe998527SLalit Chandivade qla4_8xxx_idc_lock(ha); 5040fe998527SLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 5041fe998527SLalit Chandivade QLA82XX_DEV_FAILED); 5042fe998527SLalit Chandivade qla4_8xxx_idc_unlock(ha); 5043fe998527SLalit Chandivade } 5044afaf5a2dSDavid Somayajulu ret = -ENODEV; 5045b3a271a9SManish Rangankar goto remove_host; 5046afaf5a2dSDavid Somayajulu } 5047afaf5a2dSDavid Somayajulu 5048afaf5a2dSDavid Somayajulu /* Startup the kernel thread for this host adapter. */ 5049afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: Starting kernel thread for " 5050afaf5a2dSDavid Somayajulu "qla4xxx_dpc\n", __func__)); 5051afaf5a2dSDavid Somayajulu sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 5052afaf5a2dSDavid Somayajulu ha->dpc_thread = create_singlethread_workqueue(buf); 5053afaf5a2dSDavid Somayajulu if (!ha->dpc_thread) { 5054c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 5055afaf5a2dSDavid Somayajulu ret = -ENODEV; 5056b3a271a9SManish Rangankar goto remove_host; 5057afaf5a2dSDavid Somayajulu } 5058c4028958SDavid Howells INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 5059afaf5a2dSDavid Somayajulu 5060b3a271a9SManish Rangankar sprintf(buf, "qla4xxx_%lu_task", ha->host_no); 5061b3a271a9SManish Rangankar ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1); 5062b3a271a9SManish Rangankar if (!ha->task_wq) { 5063b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 5064b3a271a9SManish Rangankar ret = -ENODEV; 5065b3a271a9SManish Rangankar goto remove_host; 5066b3a271a9SManish Rangankar } 5067b3a271a9SManish Rangankar 5068f4f5df23SVikas Chaudhary /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc 5069f4f5df23SVikas Chaudhary * (which is called indirectly by qla4xxx_initialize_adapter), 5070f4f5df23SVikas Chaudhary * so that irqs will be registered after crbinit but before 5071f4f5df23SVikas Chaudhary * mbx_intr_enable. 5072f4f5df23SVikas Chaudhary */ 5073f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 5074f4f5df23SVikas Chaudhary ret = qla4xxx_request_irqs(ha); 5075afaf5a2dSDavid Somayajulu if (ret) { 5076f4f5df23SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to reserve " 5077f4f5df23SVikas Chaudhary "interrupt %d already in use.\n", pdev->irq); 5078b3a271a9SManish Rangankar goto remove_host; 5079afaf5a2dSDavid Somayajulu } 5080f4f5df23SVikas Chaudhary } 5081afaf5a2dSDavid Somayajulu 50822232be0dSLalit Chandivade pci_save_state(ha->pdev); 5083f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 5084afaf5a2dSDavid Somayajulu 5085afaf5a2dSDavid Somayajulu /* Start timer thread. */ 5086afaf5a2dSDavid Somayajulu qla4xxx_start_timer(ha, qla4xxx_timer, 1); 5087afaf5a2dSDavid Somayajulu 5088afaf5a2dSDavid Somayajulu set_bit(AF_INIT_DONE, &ha->flags); 5089afaf5a2dSDavid Somayajulu 5090068237c8STej Parkash qla4_8xxx_alloc_sysfs_attr(ha); 5091068237c8STej Parkash 5092afaf5a2dSDavid Somayajulu printk(KERN_INFO 5093afaf5a2dSDavid Somayajulu " QLogic iSCSI HBA Driver version: %s\n" 5094afaf5a2dSDavid Somayajulu " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 5095afaf5a2dSDavid Somayajulu qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 5096afaf5a2dSDavid Somayajulu ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 5097afaf5a2dSDavid Somayajulu ha->patch_number, ha->build_number); 5098ed1086e0SVikas Chaudhary 50992a991c21SManish Rangankar if (qla4xxx_setup_boot_info(ha)) 51003573bfb2SVikas Chaudhary ql4_printk(KERN_ERR, ha, 51013573bfb2SVikas Chaudhary "%s: No iSCSI boot target configured\n", __func__); 51022a991c21SManish Rangankar 510313483730SMike Christie /* Perform the build ddb list and login to each */ 510413483730SMike Christie qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 510513483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 510613483730SMike Christie 510713483730SMike Christie qla4xxx_create_chap_list(ha); 510813483730SMike Christie 5109ed1086e0SVikas Chaudhary qla4xxx_create_ifaces(ha); 5110afaf5a2dSDavid Somayajulu return 0; 5111afaf5a2dSDavid Somayajulu 5112b3a271a9SManish Rangankar remove_host: 5113b3a271a9SManish Rangankar scsi_remove_host(ha->host); 5114b3a271a9SManish Rangankar 5115afaf5a2dSDavid Somayajulu probe_failed: 5116afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 5117f4f5df23SVikas Chaudhary 5118f4f5df23SVikas Chaudhary probe_failed_ioconfig: 51192232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 5120afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 5121afaf5a2dSDavid Somayajulu 5122afaf5a2dSDavid Somayajulu probe_disable_device: 5123afaf5a2dSDavid Somayajulu pci_disable_device(pdev); 5124afaf5a2dSDavid Somayajulu 5125afaf5a2dSDavid Somayajulu return ret; 5126afaf5a2dSDavid Somayajulu } 5127afaf5a2dSDavid Somayajulu 5128afaf5a2dSDavid Somayajulu /** 51297eece5a0SKaren Higgins * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 51307eece5a0SKaren Higgins * @ha: pointer to adapter structure 51317eece5a0SKaren Higgins * 51327eece5a0SKaren Higgins * Mark the other ISP-4xxx port to indicate that the driver is being removed, 51337eece5a0SKaren Higgins * so that the other port will not re-initialize while in the process of 51347eece5a0SKaren Higgins * removing the ha due to driver unload or hba hotplug. 51357eece5a0SKaren Higgins **/ 51367eece5a0SKaren Higgins static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 51377eece5a0SKaren Higgins { 51387eece5a0SKaren Higgins struct scsi_qla_host *other_ha = NULL; 51397eece5a0SKaren Higgins struct pci_dev *other_pdev = NULL; 51407eece5a0SKaren Higgins int fn = ISP4XXX_PCI_FN_2; 51417eece5a0SKaren Higgins 51427eece5a0SKaren Higgins /*iscsi function numbers for ISP4xxx is 1 and 3*/ 51437eece5a0SKaren Higgins if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 51447eece5a0SKaren Higgins fn = ISP4XXX_PCI_FN_1; 51457eece5a0SKaren Higgins 51467eece5a0SKaren Higgins other_pdev = 51477eece5a0SKaren Higgins pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 51487eece5a0SKaren Higgins ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 51497eece5a0SKaren Higgins fn)); 51507eece5a0SKaren Higgins 51517eece5a0SKaren Higgins /* Get other_ha if other_pdev is valid and state is enable*/ 51527eece5a0SKaren Higgins if (other_pdev) { 51537eece5a0SKaren Higgins if (atomic_read(&other_pdev->enable_cnt)) { 51547eece5a0SKaren Higgins other_ha = pci_get_drvdata(other_pdev); 51557eece5a0SKaren Higgins if (other_ha) { 51567eece5a0SKaren Higgins set_bit(AF_HA_REMOVAL, &other_ha->flags); 51577eece5a0SKaren Higgins DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 51587eece5a0SKaren Higgins "Prevent %s reinit\n", __func__, 51597eece5a0SKaren Higgins dev_name(&other_ha->pdev->dev))); 51607eece5a0SKaren Higgins } 51617eece5a0SKaren Higgins } 51627eece5a0SKaren Higgins pci_dev_put(other_pdev); 51637eece5a0SKaren Higgins } 51647eece5a0SKaren Higgins } 51657eece5a0SKaren Higgins 516613483730SMike Christie static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 516713483730SMike Christie { 516813483730SMike Christie struct ddb_entry *ddb_entry; 516913483730SMike Christie int options; 517013483730SMike Christie int idx; 517113483730SMike Christie 517213483730SMike Christie for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 517313483730SMike Christie 517413483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 517513483730SMike Christie if ((ddb_entry != NULL) && 517613483730SMike Christie (ddb_entry->ddb_type == FLASH_DDB)) { 517713483730SMike Christie 517813483730SMike Christie options = LOGOUT_OPTION_CLOSE_SESSION; 517913483730SMike Christie if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) 518013483730SMike Christie == QLA_ERROR) 518113483730SMike Christie ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", 518213483730SMike Christie __func__); 518313483730SMike Christie 518413483730SMike Christie qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 518513483730SMike Christie /* 518613483730SMike Christie * we have decremented the reference count of the driver 518713483730SMike Christie * when we setup the session to have the driver unload 518813483730SMike Christie * to be seamless without actually destroying the 518913483730SMike Christie * session 519013483730SMike Christie **/ 519113483730SMike Christie try_module_get(qla4xxx_iscsi_transport.owner); 519213483730SMike Christie iscsi_destroy_endpoint(ddb_entry->conn->ep); 519313483730SMike Christie qla4xxx_free_ddb(ha, ddb_entry); 519413483730SMike Christie iscsi_session_teardown(ddb_entry->sess); 519513483730SMike Christie } 519613483730SMike Christie } 519713483730SMike Christie } 51987eece5a0SKaren Higgins /** 519959e13d48SMasanari Iida * qla4xxx_remove_adapter - callback function to remove adapter. 5200afaf5a2dSDavid Somayajulu * @pci_dev: PCI device pointer 5201afaf5a2dSDavid Somayajulu **/ 5202afaf5a2dSDavid Somayajulu static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) 5203afaf5a2dSDavid Somayajulu { 5204afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 5205afaf5a2dSDavid Somayajulu 5206afaf5a2dSDavid Somayajulu ha = pci_get_drvdata(pdev); 5207afaf5a2dSDavid Somayajulu 52087eece5a0SKaren Higgins if (!is_qla8022(ha)) 52097eece5a0SKaren Higgins qla4xxx_prevent_other_port_reinit(ha); 5210bee4fe8eSDavid C Somayajulu 5211ed1086e0SVikas Chaudhary /* destroy iface from sysfs */ 5212ed1086e0SVikas Chaudhary qla4xxx_destroy_ifaces(ha); 5213ed1086e0SVikas Chaudhary 521413483730SMike Christie if ((!ql4xdisablesysfsboot) && ha->boot_kset) 52152a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 52162a991c21SManish Rangankar 521713483730SMike Christie qla4xxx_destroy_fw_ddb_session(ha); 5218068237c8STej Parkash qla4_8xxx_free_sysfs_attr(ha); 521913483730SMike Christie 5220afaf5a2dSDavid Somayajulu scsi_remove_host(ha->host); 5221afaf5a2dSDavid Somayajulu 5222afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 5223afaf5a2dSDavid Somayajulu 5224afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 5225afaf5a2dSDavid Somayajulu 52262232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 5227f4f5df23SVikas Chaudhary pci_disable_device(pdev); 5228afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, NULL); 5229afaf5a2dSDavid Somayajulu } 5230afaf5a2dSDavid Somayajulu 5231afaf5a2dSDavid Somayajulu /** 5232afaf5a2dSDavid Somayajulu * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 5233afaf5a2dSDavid Somayajulu * @ha: HA context 5234afaf5a2dSDavid Somayajulu * 5235afaf5a2dSDavid Somayajulu * At exit, the @ha's flags.enable_64bit_addressing set to indicated 5236afaf5a2dSDavid Somayajulu * supported addressing method. 5237afaf5a2dSDavid Somayajulu */ 523847975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 5239afaf5a2dSDavid Somayajulu { 5240afaf5a2dSDavid Somayajulu int retval; 5241afaf5a2dSDavid Somayajulu 5242afaf5a2dSDavid Somayajulu /* Update our PCI device dma_mask for full 64 bit mask */ 52436a35528aSYang Hongyang if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 52446a35528aSYang Hongyang if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 5245afaf5a2dSDavid Somayajulu dev_dbg(&ha->pdev->dev, 5246afaf5a2dSDavid Somayajulu "Failed to set 64 bit PCI consistent mask; " 5247afaf5a2dSDavid Somayajulu "using 32 bit.\n"); 5248afaf5a2dSDavid Somayajulu retval = pci_set_consistent_dma_mask(ha->pdev, 5249284901a9SYang Hongyang DMA_BIT_MASK(32)); 5250afaf5a2dSDavid Somayajulu } 5251afaf5a2dSDavid Somayajulu } else 5252284901a9SYang Hongyang retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 5253afaf5a2dSDavid Somayajulu } 5254afaf5a2dSDavid Somayajulu 5255afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *sdev) 5256afaf5a2dSDavid Somayajulu { 5257b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 5258b3a271a9SManish Rangankar struct iscsi_session *sess; 5259b3a271a9SManish Rangankar struct ddb_entry *ddb; 52608bb4033dSVikas Chaudhary int queue_depth = QL4_DEF_QDEPTH; 5261afaf5a2dSDavid Somayajulu 5262b3a271a9SManish Rangankar cls_sess = starget_to_session(sdev->sdev_target); 5263b3a271a9SManish Rangankar sess = cls_sess->dd_data; 5264b3a271a9SManish Rangankar ddb = sess->dd_data; 5265b3a271a9SManish Rangankar 5266afaf5a2dSDavid Somayajulu sdev->hostdata = ddb; 5267afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 52688bb4033dSVikas Chaudhary 52698bb4033dSVikas Chaudhary if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 52708bb4033dSVikas Chaudhary queue_depth = ql4xmaxqdepth; 52718bb4033dSVikas Chaudhary 52728bb4033dSVikas Chaudhary scsi_activate_tcq(sdev, queue_depth); 5273afaf5a2dSDavid Somayajulu return 0; 5274afaf5a2dSDavid Somayajulu } 5275afaf5a2dSDavid Somayajulu 5276afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *sdev) 5277afaf5a2dSDavid Somayajulu { 5278afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 5279afaf5a2dSDavid Somayajulu return 0; 5280afaf5a2dSDavid Somayajulu } 5281afaf5a2dSDavid Somayajulu 5282afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev) 5283afaf5a2dSDavid Somayajulu { 5284afaf5a2dSDavid Somayajulu scsi_deactivate_tcq(sdev, 1); 5285afaf5a2dSDavid Somayajulu } 5286afaf5a2dSDavid Somayajulu 5287f7b4aa63STej Parkash static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 5288f7b4aa63STej Parkash int reason) 5289f7b4aa63STej Parkash { 5290f7b4aa63STej Parkash if (!ql4xqfulltracking) 5291f7b4aa63STej Parkash return -EOPNOTSUPP; 5292f7b4aa63STej Parkash 5293f7b4aa63STej Parkash return iscsi_change_queue_depth(sdev, qdepth, reason); 5294f7b4aa63STej Parkash } 5295f7b4aa63STej Parkash 5296afaf5a2dSDavid Somayajulu /** 5297afaf5a2dSDavid Somayajulu * qla4xxx_del_from_active_array - returns an active srb 5298afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 5299fd589a8fSAnand Gadiyar * @index: index into the active_array 5300afaf5a2dSDavid Somayajulu * 5301afaf5a2dSDavid Somayajulu * This routine removes and returns the srb at the specified index 5302afaf5a2dSDavid Somayajulu **/ 5303f4f5df23SVikas Chaudhary struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 5304f4f5df23SVikas Chaudhary uint32_t index) 5305afaf5a2dSDavid Somayajulu { 5306afaf5a2dSDavid Somayajulu struct srb *srb = NULL; 53075369887aSVikas Chaudhary struct scsi_cmnd *cmd = NULL; 5308afaf5a2dSDavid Somayajulu 53095369887aSVikas Chaudhary cmd = scsi_host_find_tag(ha->host, index); 53105369887aSVikas Chaudhary if (!cmd) 5311afaf5a2dSDavid Somayajulu return srb; 5312afaf5a2dSDavid Somayajulu 53135369887aSVikas Chaudhary srb = (struct srb *)CMD_SP(cmd); 53145369887aSVikas Chaudhary if (!srb) 5315afaf5a2dSDavid Somayajulu return srb; 5316afaf5a2dSDavid Somayajulu 5317afaf5a2dSDavid Somayajulu /* update counters */ 5318afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 5319afaf5a2dSDavid Somayajulu ha->req_q_count += srb->iocb_cnt; 5320afaf5a2dSDavid Somayajulu ha->iocb_cnt -= srb->iocb_cnt; 5321afaf5a2dSDavid Somayajulu if (srb->cmd) 53225369887aSVikas Chaudhary srb->cmd->host_scribble = 53235369887aSVikas Chaudhary (unsigned char *)(unsigned long) MAX_SRBS; 5324afaf5a2dSDavid Somayajulu } 5325afaf5a2dSDavid Somayajulu return srb; 5326afaf5a2dSDavid Somayajulu } 5327afaf5a2dSDavid Somayajulu 5328afaf5a2dSDavid Somayajulu /** 5329afaf5a2dSDavid Somayajulu * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 533009a0f719SVikas Chaudhary * @ha: Pointer to host adapter structure. 5331afaf5a2dSDavid Somayajulu * @cmd: Scsi Command to wait on. 5332afaf5a2dSDavid Somayajulu * 5333afaf5a2dSDavid Somayajulu * This routine waits for the command to be returned by the Firmware 5334afaf5a2dSDavid Somayajulu * for some max time. 5335afaf5a2dSDavid Somayajulu **/ 5336afaf5a2dSDavid Somayajulu static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 5337afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd) 5338afaf5a2dSDavid Somayajulu { 5339afaf5a2dSDavid Somayajulu int done = 0; 5340afaf5a2dSDavid Somayajulu struct srb *rp; 5341afaf5a2dSDavid Somayajulu uint32_t max_wait_time = EH_WAIT_CMD_TOV; 53422232be0dSLalit Chandivade int ret = SUCCESS; 53432232be0dSLalit Chandivade 53442232be0dSLalit Chandivade /* Dont wait on command if PCI error is being handled 53452232be0dSLalit Chandivade * by PCI AER driver 53462232be0dSLalit Chandivade */ 53472232be0dSLalit Chandivade if (unlikely(pci_channel_offline(ha->pdev)) || 53482232be0dSLalit Chandivade (test_bit(AF_EEH_BUSY, &ha->flags))) { 53492232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 53502232be0dSLalit Chandivade ha->host_no, __func__); 53512232be0dSLalit Chandivade return ret; 53522232be0dSLalit Chandivade } 5353afaf5a2dSDavid Somayajulu 5354afaf5a2dSDavid Somayajulu do { 5355afaf5a2dSDavid Somayajulu /* Checking to see if its returned to OS */ 53565369887aSVikas Chaudhary rp = (struct srb *) CMD_SP(cmd); 5357afaf5a2dSDavid Somayajulu if (rp == NULL) { 5358afaf5a2dSDavid Somayajulu done++; 5359afaf5a2dSDavid Somayajulu break; 5360afaf5a2dSDavid Somayajulu } 5361afaf5a2dSDavid Somayajulu 5362afaf5a2dSDavid Somayajulu msleep(2000); 5363afaf5a2dSDavid Somayajulu } while (max_wait_time--); 5364afaf5a2dSDavid Somayajulu 5365afaf5a2dSDavid Somayajulu return done; 5366afaf5a2dSDavid Somayajulu } 5367afaf5a2dSDavid Somayajulu 5368afaf5a2dSDavid Somayajulu /** 5369afaf5a2dSDavid Somayajulu * qla4xxx_wait_for_hba_online - waits for HBA to come online 5370afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 5371afaf5a2dSDavid Somayajulu **/ 5372afaf5a2dSDavid Somayajulu static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 5373afaf5a2dSDavid Somayajulu { 5374afaf5a2dSDavid Somayajulu unsigned long wait_online; 5375afaf5a2dSDavid Somayajulu 5376f581a3f7SVikas Chaudhary wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 5377afaf5a2dSDavid Somayajulu while (time_before(jiffies, wait_online)) { 5378afaf5a2dSDavid Somayajulu 5379afaf5a2dSDavid Somayajulu if (adapter_up(ha)) 5380afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 5381afaf5a2dSDavid Somayajulu 5382afaf5a2dSDavid Somayajulu msleep(2000); 5383afaf5a2dSDavid Somayajulu } 5384afaf5a2dSDavid Somayajulu 5385afaf5a2dSDavid Somayajulu return QLA_ERROR; 5386afaf5a2dSDavid Somayajulu } 5387afaf5a2dSDavid Somayajulu 5388afaf5a2dSDavid Somayajulu /** 5389ce545039SMike Christie * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 5390fd589a8fSAnand Gadiyar * @ha: pointer to HBA 5391afaf5a2dSDavid Somayajulu * @t: target id 5392afaf5a2dSDavid Somayajulu * @l: lun id 5393afaf5a2dSDavid Somayajulu * 5394afaf5a2dSDavid Somayajulu * This function waits for all outstanding commands to a lun to complete. It 5395afaf5a2dSDavid Somayajulu * returns 0 if all pending commands are returned and 1 otherwise. 5396afaf5a2dSDavid Somayajulu **/ 5397ce545039SMike Christie static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 5398ce545039SMike Christie struct scsi_target *stgt, 5399ce545039SMike Christie struct scsi_device *sdev) 5400afaf5a2dSDavid Somayajulu { 5401afaf5a2dSDavid Somayajulu int cnt; 5402afaf5a2dSDavid Somayajulu int status = 0; 5403afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 5404afaf5a2dSDavid Somayajulu 5405afaf5a2dSDavid Somayajulu /* 5406ce545039SMike Christie * Waiting for all commands for the designated target or dev 5407ce545039SMike Christie * in the active array 5408afaf5a2dSDavid Somayajulu */ 5409afaf5a2dSDavid Somayajulu for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 5410afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, cnt); 5411ce545039SMike Christie if (cmd && stgt == scsi_target(cmd->device) && 5412ce545039SMike Christie (!sdev || sdev == cmd->device)) { 5413afaf5a2dSDavid Somayajulu if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 5414afaf5a2dSDavid Somayajulu status++; 5415afaf5a2dSDavid Somayajulu break; 5416afaf5a2dSDavid Somayajulu } 5417afaf5a2dSDavid Somayajulu } 5418afaf5a2dSDavid Somayajulu } 5419afaf5a2dSDavid Somayajulu return status; 5420afaf5a2dSDavid Somayajulu } 5421afaf5a2dSDavid Somayajulu 5422afaf5a2dSDavid Somayajulu /** 542309a0f719SVikas Chaudhary * qla4xxx_eh_abort - callback for abort task. 542409a0f719SVikas Chaudhary * @cmd: Pointer to Linux's SCSI command structure 542509a0f719SVikas Chaudhary * 542609a0f719SVikas Chaudhary * This routine is called by the Linux OS to abort the specified 542709a0f719SVikas Chaudhary * command. 542809a0f719SVikas Chaudhary **/ 542909a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 543009a0f719SVikas Chaudhary { 543109a0f719SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 543209a0f719SVikas Chaudhary unsigned int id = cmd->device->id; 543309a0f719SVikas Chaudhary unsigned int lun = cmd->device->lun; 543492b3e5bbSMike Christie unsigned long flags; 543509a0f719SVikas Chaudhary struct srb *srb = NULL; 543609a0f719SVikas Chaudhary int ret = SUCCESS; 543709a0f719SVikas Chaudhary int wait = 0; 543809a0f719SVikas Chaudhary 5439c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 54405cd049a5SChristoph Hellwig "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 54415cd049a5SChristoph Hellwig ha->host_no, id, lun, cmd); 544209a0f719SVikas Chaudhary 544392b3e5bbSMike Christie spin_lock_irqsave(&ha->hardware_lock, flags); 544409a0f719SVikas Chaudhary srb = (struct srb *) CMD_SP(cmd); 544592b3e5bbSMike Christie if (!srb) { 544692b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 544709a0f719SVikas Chaudhary return SUCCESS; 544892b3e5bbSMike Christie } 544909a0f719SVikas Chaudhary kref_get(&srb->srb_ref); 545092b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 545109a0f719SVikas Chaudhary 545209a0f719SVikas Chaudhary if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 545309a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 545409a0f719SVikas Chaudhary ha->host_no, id, lun)); 545509a0f719SVikas Chaudhary ret = FAILED; 545609a0f719SVikas Chaudhary } else { 545709a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 545809a0f719SVikas Chaudhary ha->host_no, id, lun)); 545909a0f719SVikas Chaudhary wait = 1; 546009a0f719SVikas Chaudhary } 546109a0f719SVikas Chaudhary 546209a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 546309a0f719SVikas Chaudhary 546409a0f719SVikas Chaudhary /* Wait for command to complete */ 546509a0f719SVikas Chaudhary if (wait) { 546609a0f719SVikas Chaudhary if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 546709a0f719SVikas Chaudhary DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 546809a0f719SVikas Chaudhary ha->host_no, id, lun)); 546909a0f719SVikas Chaudhary ret = FAILED; 547009a0f719SVikas Chaudhary } 547109a0f719SVikas Chaudhary } 547209a0f719SVikas Chaudhary 5473c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 547409a0f719SVikas Chaudhary "scsi%ld:%d:%d: Abort command - %s\n", 547525985edcSLucas De Marchi ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 547609a0f719SVikas Chaudhary 547709a0f719SVikas Chaudhary return ret; 547809a0f719SVikas Chaudhary } 547909a0f719SVikas Chaudhary 548009a0f719SVikas Chaudhary /** 5481afaf5a2dSDavid Somayajulu * qla4xxx_eh_device_reset - callback for target reset. 5482afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 5483afaf5a2dSDavid Somayajulu * 5484afaf5a2dSDavid Somayajulu * This routine is called by the Linux OS to reset all luns on the 5485afaf5a2dSDavid Somayajulu * specified target. 5486afaf5a2dSDavid Somayajulu **/ 5487afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 5488afaf5a2dSDavid Somayajulu { 5489afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5490afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 5491afaf5a2dSDavid Somayajulu int ret = FAILED, stat; 5492afaf5a2dSDavid Somayajulu 5493612f7348SKaren Higgins if (!ddb_entry) 5494afaf5a2dSDavid Somayajulu return ret; 5495afaf5a2dSDavid Somayajulu 5496c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 5497c01be6dcSMike Christie if (ret) 5498c01be6dcSMike Christie return ret; 5499c01be6dcSMike Christie ret = FAILED; 5500c01be6dcSMike Christie 5501c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5502afaf5a2dSDavid Somayajulu "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 5503afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 5504afaf5a2dSDavid Somayajulu 5505afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_INFO 5506afaf5a2dSDavid Somayajulu "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 5507afaf5a2dSDavid Somayajulu "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 5508242f9dcbSJens Axboe cmd, jiffies, cmd->request->timeout / HZ, 5509afaf5a2dSDavid Somayajulu ha->dpc_flags, cmd->result, cmd->allowed)); 5510afaf5a2dSDavid Somayajulu 5511afaf5a2dSDavid Somayajulu /* FIXME: wait for hba to go online */ 5512afaf5a2dSDavid Somayajulu stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 5513afaf5a2dSDavid Somayajulu if (stat != QLA_SUCCESS) { 5514c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 5515afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 5516afaf5a2dSDavid Somayajulu } 5517afaf5a2dSDavid Somayajulu 5518ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5519ce545039SMike Christie cmd->device)) { 5520c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5521afaf5a2dSDavid Somayajulu "DEVICE RESET FAILED - waiting for " 5522afaf5a2dSDavid Somayajulu "commands.\n"); 5523afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 5524afaf5a2dSDavid Somayajulu } 5525afaf5a2dSDavid Somayajulu 55269d562913SDavid C Somayajulu /* Send marker. */ 55279d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 55289d562913SDavid C Somayajulu MM_LUN_RESET) != QLA_SUCCESS) 55299d562913SDavid C Somayajulu goto eh_dev_reset_done; 55309d562913SDavid C Somayajulu 5531c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5532afaf5a2dSDavid Somayajulu "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 5533afaf5a2dSDavid Somayajulu ha->host_no, cmd->device->channel, cmd->device->id, 5534afaf5a2dSDavid Somayajulu cmd->device->lun); 5535afaf5a2dSDavid Somayajulu 5536afaf5a2dSDavid Somayajulu ret = SUCCESS; 5537afaf5a2dSDavid Somayajulu 5538afaf5a2dSDavid Somayajulu eh_dev_reset_done: 5539afaf5a2dSDavid Somayajulu 5540afaf5a2dSDavid Somayajulu return ret; 5541afaf5a2dSDavid Somayajulu } 5542afaf5a2dSDavid Somayajulu 5543afaf5a2dSDavid Somayajulu /** 5544ce545039SMike Christie * qla4xxx_eh_target_reset - callback for target reset. 5545ce545039SMike Christie * @cmd: Pointer to Linux's SCSI command structure 5546ce545039SMike Christie * 5547ce545039SMike Christie * This routine is called by the Linux OS to reset the target. 5548ce545039SMike Christie **/ 5549ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 5550ce545039SMike Christie { 5551ce545039SMike Christie struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5552ce545039SMike Christie struct ddb_entry *ddb_entry = cmd->device->hostdata; 5553c01be6dcSMike Christie int stat, ret; 5554ce545039SMike Christie 5555ce545039SMike Christie if (!ddb_entry) 5556ce545039SMike Christie return FAILED; 5557ce545039SMike Christie 5558c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 5559c01be6dcSMike Christie if (ret) 5560c01be6dcSMike Christie return ret; 5561c01be6dcSMike Christie 5562ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5563ce545039SMike Christie "WARM TARGET RESET ISSUED.\n"); 5564ce545039SMike Christie 5565ce545039SMike Christie DEBUG2(printk(KERN_INFO 5566ce545039SMike Christie "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 5567ce545039SMike Christie "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 5568242f9dcbSJens Axboe ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 5569ce545039SMike Christie ha->dpc_flags, cmd->result, cmd->allowed)); 5570ce545039SMike Christie 5571ce545039SMike Christie stat = qla4xxx_reset_target(ha, ddb_entry); 5572ce545039SMike Christie if (stat != QLA_SUCCESS) { 5573ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5574ce545039SMike Christie "WARM TARGET RESET FAILED.\n"); 5575ce545039SMike Christie return FAILED; 5576ce545039SMike Christie } 5577ce545039SMike Christie 5578ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5579ce545039SMike Christie NULL)) { 5580ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5581ce545039SMike Christie "WARM TARGET DEVICE RESET FAILED - " 5582ce545039SMike Christie "waiting for commands.\n"); 5583ce545039SMike Christie return FAILED; 5584ce545039SMike Christie } 5585ce545039SMike Christie 55869d562913SDavid C Somayajulu /* Send marker. */ 55879d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 55889d562913SDavid C Somayajulu MM_TGT_WARM_RESET) != QLA_SUCCESS) { 55899d562913SDavid C Somayajulu starget_printk(KERN_INFO, scsi_target(cmd->device), 55909d562913SDavid C Somayajulu "WARM TARGET DEVICE RESET FAILED - " 55919d562913SDavid C Somayajulu "marker iocb failed.\n"); 55929d562913SDavid C Somayajulu return FAILED; 55939d562913SDavid C Somayajulu } 55949d562913SDavid C Somayajulu 5595ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5596ce545039SMike Christie "WARM TARGET RESET SUCCEEDED.\n"); 5597ce545039SMike Christie return SUCCESS; 5598ce545039SMike Christie } 5599ce545039SMike Christie 5600ce545039SMike Christie /** 56018a288960SSarang Radke * qla4xxx_is_eh_active - check if error handler is running 56028a288960SSarang Radke * @shost: Pointer to SCSI Host struct 56038a288960SSarang Radke * 56048a288960SSarang Radke * This routine finds that if reset host is called in EH 56058a288960SSarang Radke * scenario or from some application like sg_reset 56068a288960SSarang Radke **/ 56078a288960SSarang Radke static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 56088a288960SSarang Radke { 56098a288960SSarang Radke if (shost->shost_state == SHOST_RECOVERY) 56108a288960SSarang Radke return 1; 56118a288960SSarang Radke return 0; 56128a288960SSarang Radke } 56138a288960SSarang Radke 56148a288960SSarang Radke /** 5615afaf5a2dSDavid Somayajulu * qla4xxx_eh_host_reset - kernel callback 5616afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 5617afaf5a2dSDavid Somayajulu * 5618afaf5a2dSDavid Somayajulu * This routine is invoked by the Linux kernel to perform fatal error 5619afaf5a2dSDavid Somayajulu * recovery on the specified adapter. 5620afaf5a2dSDavid Somayajulu **/ 5621afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 5622afaf5a2dSDavid Somayajulu { 5623afaf5a2dSDavid Somayajulu int return_status = FAILED; 5624afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 5625afaf5a2dSDavid Somayajulu 5626b3a271a9SManish Rangankar ha = to_qla_host(cmd->device->host); 5627afaf5a2dSDavid Somayajulu 5628f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 5629f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5630f4f5df23SVikas Chaudhary ha->host_no, __func__)); 56318a288960SSarang Radke 56328a288960SSarang Radke /* Clear outstanding srb in queues */ 56338a288960SSarang Radke if (qla4xxx_is_eh_active(cmd->device->host)) 56348a288960SSarang Radke qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 56358a288960SSarang Radke 5636f4f5df23SVikas Chaudhary return FAILED; 5637f4f5df23SVikas Chaudhary } 5638f4f5df23SVikas Chaudhary 5639c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5640dca05c4cSKaren Higgins "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 5641afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 5642afaf5a2dSDavid Somayajulu 5643afaf5a2dSDavid Somayajulu if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 5644afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 5645afaf5a2dSDavid Somayajulu "DEAD.\n", ha->host_no, cmd->device->channel, 5646afaf5a2dSDavid Somayajulu __func__)); 5647afaf5a2dSDavid Somayajulu 5648afaf5a2dSDavid Somayajulu return FAILED; 5649afaf5a2dSDavid Somayajulu } 5650afaf5a2dSDavid Somayajulu 5651f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 5652f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 5653f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5654f4f5df23SVikas Chaudhary else 5655f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 5656f4f5df23SVikas Chaudhary } 565750a29aecSMike Christie 5658f4f5df23SVikas Chaudhary if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 5659afaf5a2dSDavid Somayajulu return_status = SUCCESS; 5660afaf5a2dSDavid Somayajulu 5661c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 566225985edcSLucas De Marchi return_status == FAILED ? "FAILED" : "SUCCEEDED"); 5663afaf5a2dSDavid Somayajulu 5664afaf5a2dSDavid Somayajulu return return_status; 5665afaf5a2dSDavid Somayajulu } 5666afaf5a2dSDavid Somayajulu 566795d31262SVikas Chaudhary static int qla4xxx_context_reset(struct scsi_qla_host *ha) 566895d31262SVikas Chaudhary { 566995d31262SVikas Chaudhary uint32_t mbox_cmd[MBOX_REG_COUNT]; 567095d31262SVikas Chaudhary uint32_t mbox_sts[MBOX_REG_COUNT]; 567195d31262SVikas Chaudhary struct addr_ctrl_blk_def *acb = NULL; 567295d31262SVikas Chaudhary uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 567395d31262SVikas Chaudhary int rval = QLA_SUCCESS; 567495d31262SVikas Chaudhary dma_addr_t acb_dma; 567595d31262SVikas Chaudhary 567695d31262SVikas Chaudhary acb = dma_alloc_coherent(&ha->pdev->dev, 567795d31262SVikas Chaudhary sizeof(struct addr_ctrl_blk_def), 567895d31262SVikas Chaudhary &acb_dma, GFP_KERNEL); 567995d31262SVikas Chaudhary if (!acb) { 568095d31262SVikas Chaudhary ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 568195d31262SVikas Chaudhary __func__); 568295d31262SVikas Chaudhary rval = -ENOMEM; 568395d31262SVikas Chaudhary goto exit_port_reset; 568495d31262SVikas Chaudhary } 568595d31262SVikas Chaudhary 568695d31262SVikas Chaudhary memset(acb, 0, acb_len); 568795d31262SVikas Chaudhary 568895d31262SVikas Chaudhary rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 568995d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 569095d31262SVikas Chaudhary rval = -EIO; 569195d31262SVikas Chaudhary goto exit_free_acb; 569295d31262SVikas Chaudhary } 569395d31262SVikas Chaudhary 569495d31262SVikas Chaudhary rval = qla4xxx_disable_acb(ha); 569595d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 569695d31262SVikas Chaudhary rval = -EIO; 569795d31262SVikas Chaudhary goto exit_free_acb; 569895d31262SVikas Chaudhary } 569995d31262SVikas Chaudhary 570095d31262SVikas Chaudhary wait_for_completion_timeout(&ha->disable_acb_comp, 570195d31262SVikas Chaudhary DISABLE_ACB_TOV * HZ); 570295d31262SVikas Chaudhary 570395d31262SVikas Chaudhary rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 570495d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 570595d31262SVikas Chaudhary rval = -EIO; 570695d31262SVikas Chaudhary goto exit_free_acb; 570795d31262SVikas Chaudhary } 570895d31262SVikas Chaudhary 570995d31262SVikas Chaudhary exit_free_acb: 571095d31262SVikas Chaudhary dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 571195d31262SVikas Chaudhary acb, acb_dma); 571295d31262SVikas Chaudhary exit_port_reset: 571395d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 571495d31262SVikas Chaudhary rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 571595d31262SVikas Chaudhary return rval; 571695d31262SVikas Chaudhary } 571795d31262SVikas Chaudhary 571895d31262SVikas Chaudhary static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 571995d31262SVikas Chaudhary { 572095d31262SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 572195d31262SVikas Chaudhary int rval = QLA_SUCCESS; 572295d31262SVikas Chaudhary 572395d31262SVikas Chaudhary if (ql4xdontresethba) { 572495d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 572595d31262SVikas Chaudhary __func__)); 572695d31262SVikas Chaudhary rval = -EPERM; 572795d31262SVikas Chaudhary goto exit_host_reset; 572895d31262SVikas Chaudhary } 572995d31262SVikas Chaudhary 573095d31262SVikas Chaudhary rval = qla4xxx_wait_for_hba_online(ha); 573195d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 573295d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unable to reset host " 573395d31262SVikas Chaudhary "adapter\n", __func__)); 573495d31262SVikas Chaudhary rval = -EIO; 573595d31262SVikas Chaudhary goto exit_host_reset; 573695d31262SVikas Chaudhary } 573795d31262SVikas Chaudhary 573895d31262SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 573995d31262SVikas Chaudhary goto recover_adapter; 574095d31262SVikas Chaudhary 574195d31262SVikas Chaudhary switch (reset_type) { 574295d31262SVikas Chaudhary case SCSI_ADAPTER_RESET: 574395d31262SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 574495d31262SVikas Chaudhary break; 574595d31262SVikas Chaudhary case SCSI_FIRMWARE_RESET: 574695d31262SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 574795d31262SVikas Chaudhary if (is_qla8022(ha)) 574895d31262SVikas Chaudhary /* set firmware context reset */ 574995d31262SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, 575095d31262SVikas Chaudhary &ha->dpc_flags); 575195d31262SVikas Chaudhary else { 575295d31262SVikas Chaudhary rval = qla4xxx_context_reset(ha); 575395d31262SVikas Chaudhary goto exit_host_reset; 575495d31262SVikas Chaudhary } 575595d31262SVikas Chaudhary } 575695d31262SVikas Chaudhary break; 575795d31262SVikas Chaudhary } 575895d31262SVikas Chaudhary 575995d31262SVikas Chaudhary recover_adapter: 576095d31262SVikas Chaudhary rval = qla4xxx_recover_adapter(ha); 576195d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 576295d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 576395d31262SVikas Chaudhary __func__)); 576495d31262SVikas Chaudhary rval = -EIO; 576595d31262SVikas Chaudhary } 576695d31262SVikas Chaudhary 576795d31262SVikas Chaudhary exit_host_reset: 576895d31262SVikas Chaudhary return rval; 576995d31262SVikas Chaudhary } 577095d31262SVikas Chaudhary 57712232be0dSLalit Chandivade /* PCI AER driver recovers from all correctable errors w/o 57722232be0dSLalit Chandivade * driver intervention. For uncorrectable errors PCI AER 57732232be0dSLalit Chandivade * driver calls the following device driver's callbacks 57742232be0dSLalit Chandivade * 57752232be0dSLalit Chandivade * - Fatal Errors - link_reset 57762232be0dSLalit Chandivade * - Non-Fatal Errors - driver's pci_error_detected() which 57772232be0dSLalit Chandivade * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 57782232be0dSLalit Chandivade * 57792232be0dSLalit Chandivade * PCI AER driver calls 57802232be0dSLalit Chandivade * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 57812232be0dSLalit Chandivade * returns RECOVERED or NEED_RESET if fw_hung 57822232be0dSLalit Chandivade * NEED_RESET - driver's slot_reset() 57832232be0dSLalit Chandivade * DISCONNECT - device is dead & cannot recover 57842232be0dSLalit Chandivade * RECOVERED - driver's pci_resume() 57852232be0dSLalit Chandivade */ 57862232be0dSLalit Chandivade static pci_ers_result_t 57872232be0dSLalit Chandivade qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 57882232be0dSLalit Chandivade { 57892232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 57902232be0dSLalit Chandivade 57912232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 57922232be0dSLalit Chandivade ha->host_no, __func__, state); 57932232be0dSLalit Chandivade 57942232be0dSLalit Chandivade if (!is_aer_supported(ha)) 57952232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 57962232be0dSLalit Chandivade 57972232be0dSLalit Chandivade switch (state) { 57982232be0dSLalit Chandivade case pci_channel_io_normal: 57992232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 58002232be0dSLalit Chandivade return PCI_ERS_RESULT_CAN_RECOVER; 58012232be0dSLalit Chandivade case pci_channel_io_frozen: 58022232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 58032232be0dSLalit Chandivade qla4xxx_mailbox_premature_completion(ha); 58042232be0dSLalit Chandivade qla4xxx_free_irqs(ha); 58052232be0dSLalit Chandivade pci_disable_device(pdev); 58067b3595dfSVikas Chaudhary /* Return back all IOs */ 58077b3595dfSVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 58082232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 58092232be0dSLalit Chandivade case pci_channel_io_perm_failure: 58102232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 58112232be0dSLalit Chandivade set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 58122232be0dSLalit Chandivade qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 58132232be0dSLalit Chandivade return PCI_ERS_RESULT_DISCONNECT; 58142232be0dSLalit Chandivade } 58152232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 58162232be0dSLalit Chandivade } 58172232be0dSLalit Chandivade 58182232be0dSLalit Chandivade /** 58192232be0dSLalit Chandivade * qla4xxx_pci_mmio_enabled() gets called if 58202232be0dSLalit Chandivade * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 58212232be0dSLalit Chandivade * and read/write to the device still works. 58222232be0dSLalit Chandivade **/ 58232232be0dSLalit Chandivade static pci_ers_result_t 58242232be0dSLalit Chandivade qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 58252232be0dSLalit Chandivade { 58262232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 58272232be0dSLalit Chandivade 58282232be0dSLalit Chandivade if (!is_aer_supported(ha)) 58292232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 58302232be0dSLalit Chandivade 58312232be0dSLalit Chandivade return PCI_ERS_RESULT_RECOVERED; 58322232be0dSLalit Chandivade } 58332232be0dSLalit Chandivade 58347b3595dfSVikas Chaudhary static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 58352232be0dSLalit Chandivade { 58362232be0dSLalit Chandivade uint32_t rval = QLA_ERROR; 58377b3595dfSVikas Chaudhary uint32_t ret = 0; 58382232be0dSLalit Chandivade int fn; 58392232be0dSLalit Chandivade struct pci_dev *other_pdev = NULL; 58402232be0dSLalit Chandivade 58412232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 58422232be0dSLalit Chandivade 58432232be0dSLalit Chandivade set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 58442232be0dSLalit Chandivade 58452232be0dSLalit Chandivade if (test_bit(AF_ONLINE, &ha->flags)) { 58462232be0dSLalit Chandivade clear_bit(AF_ONLINE, &ha->flags); 5847b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 5848b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 58492232be0dSLalit Chandivade qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 58502232be0dSLalit Chandivade } 58512232be0dSLalit Chandivade 58522232be0dSLalit Chandivade fn = PCI_FUNC(ha->pdev->devfn); 58532232be0dSLalit Chandivade while (fn > 0) { 58542232be0dSLalit Chandivade fn--; 58552232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 58562232be0dSLalit Chandivade "func %x\n", ha->host_no, __func__, fn); 58572232be0dSLalit Chandivade /* Get the pci device given the domain, bus, 58582232be0dSLalit Chandivade * slot/function number */ 58592232be0dSLalit Chandivade other_pdev = 58602232be0dSLalit Chandivade pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 58612232be0dSLalit Chandivade ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 58622232be0dSLalit Chandivade fn)); 58632232be0dSLalit Chandivade 58642232be0dSLalit Chandivade if (!other_pdev) 58652232be0dSLalit Chandivade continue; 58662232be0dSLalit Chandivade 58672232be0dSLalit Chandivade if (atomic_read(&other_pdev->enable_cnt)) { 58682232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 58692232be0dSLalit Chandivade "func in enabled state%x\n", ha->host_no, 58702232be0dSLalit Chandivade __func__, fn); 58712232be0dSLalit Chandivade pci_dev_put(other_pdev); 58722232be0dSLalit Chandivade break; 58732232be0dSLalit Chandivade } 58742232be0dSLalit Chandivade pci_dev_put(other_pdev); 58752232be0dSLalit Chandivade } 58762232be0dSLalit Chandivade 58772232be0dSLalit Chandivade /* The first function on the card, the reset owner will 58782232be0dSLalit Chandivade * start & initialize the firmware. The other functions 58792232be0dSLalit Chandivade * on the card will reset the firmware context 58802232be0dSLalit Chandivade */ 58812232be0dSLalit Chandivade if (!fn) { 58822232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 58832232be0dSLalit Chandivade "0x%x is the owner\n", ha->host_no, __func__, 58842232be0dSLalit Chandivade ha->pdev->devfn); 58852232be0dSLalit Chandivade 58862232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 58872232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 58882232be0dSLalit Chandivade QLA82XX_DEV_COLD); 58892232be0dSLalit Chandivade 58902232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, 58912232be0dSLalit Chandivade QLA82XX_IDC_VERSION); 58922232be0dSLalit Chandivade 58932232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 58942232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 589513483730SMike Christie rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 58962232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 58972232be0dSLalit Chandivade 58982232be0dSLalit Chandivade if (rval != QLA_SUCCESS) { 58992232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 59002232be0dSLalit Chandivade "FAILED\n", ha->host_no, __func__); 59012232be0dSLalit Chandivade qla4_8xxx_clear_drv_active(ha); 59022232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 59032232be0dSLalit Chandivade QLA82XX_DEV_FAILED); 59042232be0dSLalit Chandivade } else { 59052232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 59062232be0dSLalit Chandivade "READY\n", ha->host_no, __func__); 59072232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 59082232be0dSLalit Chandivade QLA82XX_DEV_READY); 59092232be0dSLalit Chandivade /* Clear driver state register */ 59102232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0); 59112232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 59127b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 59137b3595dfSVikas Chaudhary if (ret) { 59147b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to " 59157b3595dfSVikas Chaudhary "reserve interrupt %d already in use.\n", 59167b3595dfSVikas Chaudhary ha->pdev->irq); 59177b3595dfSVikas Chaudhary rval = QLA_ERROR; 59187b3595dfSVikas Chaudhary } else { 59192232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 59207b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 59217b3595dfSVikas Chaudhary } 59222232be0dSLalit Chandivade } 59232232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 59242232be0dSLalit Chandivade } else { 59252232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 59262232be0dSLalit Chandivade "the reset owner\n", ha->host_no, __func__, 59272232be0dSLalit Chandivade ha->pdev->devfn); 59282232be0dSLalit Chandivade if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == 59292232be0dSLalit Chandivade QLA82XX_DEV_READY)) { 59302232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 593113483730SMike Christie rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 59327b3595dfSVikas Chaudhary if (rval == QLA_SUCCESS) { 59337b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 59347b3595dfSVikas Chaudhary if (ret) { 59357b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to" 59367b3595dfSVikas Chaudhary " reserve interrupt %d already in" 59377b3595dfSVikas Chaudhary " use.\n", ha->pdev->irq); 59387b3595dfSVikas Chaudhary rval = QLA_ERROR; 59397b3595dfSVikas Chaudhary } else { 59402232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 59417b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 59427b3595dfSVikas Chaudhary } 59437b3595dfSVikas Chaudhary } 59442232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 59452232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 59462232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 59472232be0dSLalit Chandivade } 59482232be0dSLalit Chandivade } 59492232be0dSLalit Chandivade clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 59502232be0dSLalit Chandivade return rval; 59512232be0dSLalit Chandivade } 59522232be0dSLalit Chandivade 59532232be0dSLalit Chandivade static pci_ers_result_t 59542232be0dSLalit Chandivade qla4xxx_pci_slot_reset(struct pci_dev *pdev) 59552232be0dSLalit Chandivade { 59562232be0dSLalit Chandivade pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 59572232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 59582232be0dSLalit Chandivade int rc; 59592232be0dSLalit Chandivade 59602232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 59612232be0dSLalit Chandivade ha->host_no, __func__); 59622232be0dSLalit Chandivade 59632232be0dSLalit Chandivade if (!is_aer_supported(ha)) 59642232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 59652232be0dSLalit Chandivade 59662232be0dSLalit Chandivade /* Restore the saved state of PCIe device - 59672232be0dSLalit Chandivade * BAR registers, PCI Config space, PCIX, MSI, 59682232be0dSLalit Chandivade * IOV states 59692232be0dSLalit Chandivade */ 59702232be0dSLalit Chandivade pci_restore_state(pdev); 59712232be0dSLalit Chandivade 59722232be0dSLalit Chandivade /* pci_restore_state() clears the saved_state flag of the device 59732232be0dSLalit Chandivade * save restored state which resets saved_state flag 59742232be0dSLalit Chandivade */ 59752232be0dSLalit Chandivade pci_save_state(pdev); 59762232be0dSLalit Chandivade 59772232be0dSLalit Chandivade /* Initialize device or resume if in suspended state */ 59782232be0dSLalit Chandivade rc = pci_enable_device(pdev); 59792232be0dSLalit Chandivade if (rc) { 598025985edcSLucas De Marchi ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 59812232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__); 59822232be0dSLalit Chandivade goto exit_slot_reset; 59832232be0dSLalit Chandivade } 59842232be0dSLalit Chandivade 59857b3595dfSVikas Chaudhary ha->isp_ops->disable_intrs(ha); 59862232be0dSLalit Chandivade 59872232be0dSLalit Chandivade if (is_qla8022(ha)) { 59882232be0dSLalit Chandivade if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 59892232be0dSLalit Chandivade ret = PCI_ERS_RESULT_RECOVERED; 59902232be0dSLalit Chandivade goto exit_slot_reset; 59912232be0dSLalit Chandivade } else 59922232be0dSLalit Chandivade goto exit_slot_reset; 59932232be0dSLalit Chandivade } 59942232be0dSLalit Chandivade 59952232be0dSLalit Chandivade exit_slot_reset: 59962232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 59972232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__, ret); 59982232be0dSLalit Chandivade return ret; 59992232be0dSLalit Chandivade } 60002232be0dSLalit Chandivade 60012232be0dSLalit Chandivade static void 60022232be0dSLalit Chandivade qla4xxx_pci_resume(struct pci_dev *pdev) 60032232be0dSLalit Chandivade { 60042232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 60052232be0dSLalit Chandivade int ret; 60062232be0dSLalit Chandivade 60072232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 60082232be0dSLalit Chandivade ha->host_no, __func__); 60092232be0dSLalit Chandivade 60102232be0dSLalit Chandivade ret = qla4xxx_wait_for_hba_online(ha); 60112232be0dSLalit Chandivade if (ret != QLA_SUCCESS) { 60122232be0dSLalit Chandivade ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 60132232be0dSLalit Chandivade "resume I/O from slot/link_reset\n", ha->host_no, 60142232be0dSLalit Chandivade __func__); 60152232be0dSLalit Chandivade } 60162232be0dSLalit Chandivade 60172232be0dSLalit Chandivade pci_cleanup_aer_uncorrect_error_status(pdev); 60182232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 60192232be0dSLalit Chandivade } 60202232be0dSLalit Chandivade 60212232be0dSLalit Chandivade static struct pci_error_handlers qla4xxx_err_handler = { 60222232be0dSLalit Chandivade .error_detected = qla4xxx_pci_error_detected, 60232232be0dSLalit Chandivade .mmio_enabled = qla4xxx_pci_mmio_enabled, 60242232be0dSLalit Chandivade .slot_reset = qla4xxx_pci_slot_reset, 60252232be0dSLalit Chandivade .resume = qla4xxx_pci_resume, 60262232be0dSLalit Chandivade }; 60272232be0dSLalit Chandivade 6028afaf5a2dSDavid Somayajulu static struct pci_device_id qla4xxx_pci_tbl[] = { 6029afaf5a2dSDavid Somayajulu { 6030afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 6031afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 6032afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 6033afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 6034afaf5a2dSDavid Somayajulu }, 6035afaf5a2dSDavid Somayajulu { 6036afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 6037afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 6038afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 6039afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 6040afaf5a2dSDavid Somayajulu }, 6041d915058fSDavid C Somayajulu { 6042d915058fSDavid C Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 6043d915058fSDavid C Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 6044d915058fSDavid C Somayajulu .subvendor = PCI_ANY_ID, 6045d915058fSDavid C Somayajulu .subdevice = PCI_ANY_ID, 6046d915058fSDavid C Somayajulu }, 6047f4f5df23SVikas Chaudhary { 6048f4f5df23SVikas Chaudhary .vendor = PCI_VENDOR_ID_QLOGIC, 6049f4f5df23SVikas Chaudhary .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 6050f4f5df23SVikas Chaudhary .subvendor = PCI_ANY_ID, 6051f4f5df23SVikas Chaudhary .subdevice = PCI_ANY_ID, 6052f4f5df23SVikas Chaudhary }, 6053afaf5a2dSDavid Somayajulu {0, 0}, 6054afaf5a2dSDavid Somayajulu }; 6055afaf5a2dSDavid Somayajulu MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 6056afaf5a2dSDavid Somayajulu 605747975477SAdrian Bunk static struct pci_driver qla4xxx_pci_driver = { 6058afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 6059afaf5a2dSDavid Somayajulu .id_table = qla4xxx_pci_tbl, 6060afaf5a2dSDavid Somayajulu .probe = qla4xxx_probe_adapter, 6061afaf5a2dSDavid Somayajulu .remove = qla4xxx_remove_adapter, 60622232be0dSLalit Chandivade .err_handler = &qla4xxx_err_handler, 6063afaf5a2dSDavid Somayajulu }; 6064afaf5a2dSDavid Somayajulu 6065afaf5a2dSDavid Somayajulu static int __init qla4xxx_module_init(void) 6066afaf5a2dSDavid Somayajulu { 6067afaf5a2dSDavid Somayajulu int ret; 6068afaf5a2dSDavid Somayajulu 6069afaf5a2dSDavid Somayajulu /* Allocate cache for SRBs. */ 6070afaf5a2dSDavid Somayajulu srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 607120c2df83SPaul Mundt SLAB_HWCACHE_ALIGN, NULL); 6072afaf5a2dSDavid Somayajulu if (srb_cachep == NULL) { 6073afaf5a2dSDavid Somayajulu printk(KERN_ERR 6074afaf5a2dSDavid Somayajulu "%s: Unable to allocate SRB cache..." 6075afaf5a2dSDavid Somayajulu "Failing load!\n", DRIVER_NAME); 6076afaf5a2dSDavid Somayajulu ret = -ENOMEM; 6077afaf5a2dSDavid Somayajulu goto no_srp_cache; 6078afaf5a2dSDavid Somayajulu } 6079afaf5a2dSDavid Somayajulu 6080afaf5a2dSDavid Somayajulu /* Derive version string. */ 6081afaf5a2dSDavid Somayajulu strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 608211010fecSAndrew Vasquez if (ql4xextended_error_logging) 6083afaf5a2dSDavid Somayajulu strcat(qla4xxx_version_str, "-debug"); 6084afaf5a2dSDavid Somayajulu 6085afaf5a2dSDavid Somayajulu qla4xxx_scsi_transport = 6086afaf5a2dSDavid Somayajulu iscsi_register_transport(&qla4xxx_iscsi_transport); 6087afaf5a2dSDavid Somayajulu if (!qla4xxx_scsi_transport){ 6088afaf5a2dSDavid Somayajulu ret = -ENODEV; 6089afaf5a2dSDavid Somayajulu goto release_srb_cache; 6090afaf5a2dSDavid Somayajulu } 6091afaf5a2dSDavid Somayajulu 6092afaf5a2dSDavid Somayajulu ret = pci_register_driver(&qla4xxx_pci_driver); 6093afaf5a2dSDavid Somayajulu if (ret) 6094afaf5a2dSDavid Somayajulu goto unregister_transport; 6095afaf5a2dSDavid Somayajulu 6096afaf5a2dSDavid Somayajulu printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 6097afaf5a2dSDavid Somayajulu return 0; 60985ae16db3SDoug Maxey 6099afaf5a2dSDavid Somayajulu unregister_transport: 6100afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 6101afaf5a2dSDavid Somayajulu release_srb_cache: 6102afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 6103afaf5a2dSDavid Somayajulu no_srp_cache: 6104afaf5a2dSDavid Somayajulu return ret; 6105afaf5a2dSDavid Somayajulu } 6106afaf5a2dSDavid Somayajulu 6107afaf5a2dSDavid Somayajulu static void __exit qla4xxx_module_exit(void) 6108afaf5a2dSDavid Somayajulu { 6109afaf5a2dSDavid Somayajulu pci_unregister_driver(&qla4xxx_pci_driver); 6110afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 6111afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 6112afaf5a2dSDavid Somayajulu } 6113afaf5a2dSDavid Somayajulu 6114afaf5a2dSDavid Somayajulu module_init(qla4xxx_module_init); 6115afaf5a2dSDavid Somayajulu module_exit(qla4xxx_module_exit); 6116afaf5a2dSDavid Somayajulu 6117afaf5a2dSDavid Somayajulu MODULE_AUTHOR("QLogic Corporation"); 6118afaf5a2dSDavid Somayajulu MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 6119afaf5a2dSDavid Somayajulu MODULE_LICENSE("GPL"); 6120afaf5a2dSDavid Somayajulu MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 6121