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 */ 3513483730SMike Christie 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 42afaf5a2dSDavid Somayajulu int ql4xdontresethba = 0; 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 713038727cSVikas Chaudhary static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 723038727cSVikas Chaudhary module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 733038727cSVikas Chaudhary MODULE_PARM_DESC(ql4xsess_recovery_tmo, 743038727cSVikas Chaudhary "Target Session Recovery Timeout.\n" 75a4e8a715SKaren Higgins "\t\t Default: 120 sec."); 763038727cSVikas Chaudhary 77b3a271a9SManish Rangankar static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 78afaf5a2dSDavid Somayajulu /* 79afaf5a2dSDavid Somayajulu * SCSI host template entry points 80afaf5a2dSDavid Somayajulu */ 8147975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 82afaf5a2dSDavid Somayajulu 83afaf5a2dSDavid Somayajulu /* 84afaf5a2dSDavid Somayajulu * iSCSI template entry points 85afaf5a2dSDavid Somayajulu */ 86fca9f04dSMike Christie static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 87fca9f04dSMike Christie enum iscsi_param param, char *buf); 88afaf5a2dSDavid Somayajulu static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 89afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf); 90aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 91aa1e93a2SMike Christie enum iscsi_host_param param, char *buf); 9200c31889SMike Christie static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, 9300c31889SMike Christie uint32_t len); 94ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 95ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 96ed1086e0SVikas Chaudhary int param, char *buf); 975c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 98b3a271a9SManish Rangankar static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 99b3a271a9SManish Rangankar struct sockaddr *dst_addr, 100b3a271a9SManish Rangankar int non_blocking); 101b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 102b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 103b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 104b3a271a9SManish Rangankar enum iscsi_param param, char *buf); 105b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 106b3a271a9SManish Rangankar static struct iscsi_cls_conn * 107b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 108b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 109b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 110b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading); 111b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 112b3a271a9SManish Rangankar static struct iscsi_cls_session * 113b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 114b3a271a9SManish Rangankar uint16_t qdepth, uint32_t initial_cmdsn); 115b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 116b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata); 117b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 118b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *); 119b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *); 120b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 121b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 122b3a271a9SManish Rangankar struct iscsi_stats *stats); 123c0b9d3f7SVikas Chaudhary static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 124c0b9d3f7SVikas Chaudhary uint32_t iface_type, uint32_t payload_size, 125c0b9d3f7SVikas Chaudhary uint32_t pid, struct sockaddr *dst_addr); 126376738afSNilesh Javali static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 127376738afSNilesh Javali uint32_t *num_entries, char *buf); 128376738afSNilesh Javali static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx); 129c0b9d3f7SVikas Chaudhary 130afaf5a2dSDavid Somayajulu /* 131afaf5a2dSDavid Somayajulu * SCSI host template entry points 132afaf5a2dSDavid Somayajulu */ 133f281233dSJeff Garzik static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 13409a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 135afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 136ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 137afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 138afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *device); 139afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *device); 140afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev); 141587a1f16SAl Viro static umode_t ql4_attr_is_visible(int param_type, int param); 14295d31262SVikas Chaudhary static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); 143afaf5a2dSDavid Somayajulu 144f4f5df23SVikas Chaudhary static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 145f4f5df23SVikas Chaudhary QLA82XX_LEGACY_INTR_CONFIG; 146f4f5df23SVikas Chaudhary 147afaf5a2dSDavid Somayajulu static struct scsi_host_template qla4xxx_driver_template = { 148afaf5a2dSDavid Somayajulu .module = THIS_MODULE, 149afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 150afaf5a2dSDavid Somayajulu .proc_name = DRIVER_NAME, 151afaf5a2dSDavid Somayajulu .queuecommand = qla4xxx_queuecommand, 152afaf5a2dSDavid Somayajulu 15309a0f719SVikas Chaudhary .eh_abort_handler = qla4xxx_eh_abort, 154afaf5a2dSDavid Somayajulu .eh_device_reset_handler = qla4xxx_eh_device_reset, 155ce545039SMike Christie .eh_target_reset_handler = qla4xxx_eh_target_reset, 156afaf5a2dSDavid Somayajulu .eh_host_reset_handler = qla4xxx_eh_host_reset, 1575c656af7SMike Christie .eh_timed_out = qla4xxx_eh_cmd_timed_out, 158afaf5a2dSDavid Somayajulu 159afaf5a2dSDavid Somayajulu .slave_configure = qla4xxx_slave_configure, 160afaf5a2dSDavid Somayajulu .slave_alloc = qla4xxx_slave_alloc, 161afaf5a2dSDavid Somayajulu .slave_destroy = qla4xxx_slave_destroy, 162afaf5a2dSDavid Somayajulu 163afaf5a2dSDavid Somayajulu .this_id = -1, 164afaf5a2dSDavid Somayajulu .cmd_per_lun = 3, 165afaf5a2dSDavid Somayajulu .use_clustering = ENABLE_CLUSTERING, 166afaf5a2dSDavid Somayajulu .sg_tablesize = SG_ALL, 167afaf5a2dSDavid Somayajulu 168afaf5a2dSDavid Somayajulu .max_sectors = 0xFFFF, 1697ad633c0SHarish Zunjarrao .shost_attrs = qla4xxx_host_attrs, 17095d31262SVikas Chaudhary .host_reset = qla4xxx_host_reset, 171a355943cSVikas Chaudhary .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 172afaf5a2dSDavid Somayajulu }; 173afaf5a2dSDavid Somayajulu 174afaf5a2dSDavid Somayajulu static struct iscsi_transport qla4xxx_iscsi_transport = { 175afaf5a2dSDavid Somayajulu .owner = THIS_MODULE, 176afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 177b3a271a9SManish Rangankar .caps = CAP_TEXT_NEGO | 178b3a271a9SManish Rangankar CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 179b3a271a9SManish Rangankar CAP_DATADGST | CAP_LOGIN_OFFLOAD | 180b3a271a9SManish Rangankar CAP_MULTI_R2T, 1813128c6c7SMike Christie .attr_is_visible = ql4_attr_is_visible, 182b3a271a9SManish Rangankar .create_session = qla4xxx_session_create, 183b3a271a9SManish Rangankar .destroy_session = qla4xxx_session_destroy, 184b3a271a9SManish Rangankar .start_conn = qla4xxx_conn_start, 185b3a271a9SManish Rangankar .create_conn = qla4xxx_conn_create, 186b3a271a9SManish Rangankar .bind_conn = qla4xxx_conn_bind, 187b3a271a9SManish Rangankar .stop_conn = iscsi_conn_stop, 188b3a271a9SManish Rangankar .destroy_conn = qla4xxx_conn_destroy, 189b3a271a9SManish Rangankar .set_param = iscsi_set_param, 190afaf5a2dSDavid Somayajulu .get_conn_param = qla4xxx_conn_get_param, 191fca9f04dSMike Christie .get_session_param = qla4xxx_session_get_param, 192b3a271a9SManish Rangankar .get_ep_param = qla4xxx_get_ep_param, 193b3a271a9SManish Rangankar .ep_connect = qla4xxx_ep_connect, 194b3a271a9SManish Rangankar .ep_poll = qla4xxx_ep_poll, 195b3a271a9SManish Rangankar .ep_disconnect = qla4xxx_ep_disconnect, 196b3a271a9SManish Rangankar .get_stats = qla4xxx_conn_get_stats, 197b3a271a9SManish Rangankar .send_pdu = iscsi_conn_send_pdu, 198b3a271a9SManish Rangankar .xmit_task = qla4xxx_task_xmit, 199b3a271a9SManish Rangankar .cleanup_task = qla4xxx_task_cleanup, 200b3a271a9SManish Rangankar .alloc_pdu = qla4xxx_alloc_pdu, 201b3a271a9SManish Rangankar 202aa1e93a2SMike Christie .get_host_param = qla4xxx_host_get_param, 203d00efe3fSMike Christie .set_iface_param = qla4xxx_iface_set_param, 204ed1086e0SVikas Chaudhary .get_iface_param = qla4xxx_get_iface_param, 205a355943cSVikas Chaudhary .bsg_request = qla4xxx_bsg_request, 206c0b9d3f7SVikas Chaudhary .send_ping = qla4xxx_send_ping, 207376738afSNilesh Javali .get_chap = qla4xxx_get_chap_list, 208376738afSNilesh Javali .delete_chap = qla4xxx_delete_chap, 209afaf5a2dSDavid Somayajulu }; 210afaf5a2dSDavid Somayajulu 211afaf5a2dSDavid Somayajulu static struct scsi_transport_template *qla4xxx_scsi_transport; 212afaf5a2dSDavid Somayajulu 213c0b9d3f7SVikas Chaudhary static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 214c0b9d3f7SVikas Chaudhary uint32_t iface_type, uint32_t payload_size, 215c0b9d3f7SVikas Chaudhary uint32_t pid, struct sockaddr *dst_addr) 216c0b9d3f7SVikas Chaudhary { 217c0b9d3f7SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 218c0b9d3f7SVikas Chaudhary struct sockaddr_in *addr; 219c0b9d3f7SVikas Chaudhary struct sockaddr_in6 *addr6; 220c0b9d3f7SVikas Chaudhary uint32_t options = 0; 221c0b9d3f7SVikas Chaudhary uint8_t ipaddr[IPv6_ADDR_LEN]; 222c0b9d3f7SVikas Chaudhary int rval; 223c0b9d3f7SVikas Chaudhary 224c0b9d3f7SVikas Chaudhary memset(ipaddr, 0, IPv6_ADDR_LEN); 225c0b9d3f7SVikas Chaudhary /* IPv4 to IPv4 */ 226c0b9d3f7SVikas Chaudhary if ((iface_type == ISCSI_IFACE_TYPE_IPV4) && 227c0b9d3f7SVikas Chaudhary (dst_addr->sa_family == AF_INET)) { 228c0b9d3f7SVikas Chaudhary addr = (struct sockaddr_in *)dst_addr; 229c0b9d3f7SVikas Chaudhary memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN); 230c0b9d3f7SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 " 231c0b9d3f7SVikas Chaudhary "dest: %pI4\n", __func__, 232c0b9d3f7SVikas Chaudhary &ha->ip_config.ip_address, ipaddr)); 233c0b9d3f7SVikas Chaudhary rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, 234c0b9d3f7SVikas Chaudhary ipaddr); 235c0b9d3f7SVikas Chaudhary if (rval) 236c0b9d3f7SVikas Chaudhary rval = -EINVAL; 237c0b9d3f7SVikas Chaudhary } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) && 238c0b9d3f7SVikas Chaudhary (dst_addr->sa_family == AF_INET6)) { 239c0b9d3f7SVikas Chaudhary /* IPv6 to IPv6 */ 240c0b9d3f7SVikas Chaudhary addr6 = (struct sockaddr_in6 *)dst_addr; 241c0b9d3f7SVikas Chaudhary memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN); 242c0b9d3f7SVikas Chaudhary 243c0b9d3f7SVikas Chaudhary options |= PING_IPV6_PROTOCOL_ENABLE; 244c0b9d3f7SVikas Chaudhary 245c0b9d3f7SVikas Chaudhary /* Ping using LinkLocal address */ 246c0b9d3f7SVikas Chaudhary if ((iface_num == 0) || (iface_num == 1)) { 247c0b9d3f7SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping " 248c0b9d3f7SVikas Chaudhary "src: %pI6 dest: %pI6\n", __func__, 249c0b9d3f7SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr, 250c0b9d3f7SVikas Chaudhary ipaddr)); 251c0b9d3f7SVikas Chaudhary options |= PING_IPV6_LINKLOCAL_ADDR; 252c0b9d3f7SVikas Chaudhary rval = qla4xxx_ping_iocb(ha, options, payload_size, 253c0b9d3f7SVikas Chaudhary pid, ipaddr); 254c0b9d3f7SVikas Chaudhary } else { 255c0b9d3f7SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "%s: iface num = %d " 256c0b9d3f7SVikas Chaudhary "not supported\n", __func__, iface_num); 257c0b9d3f7SVikas Chaudhary rval = -ENOSYS; 258c0b9d3f7SVikas Chaudhary goto exit_send_ping; 259c0b9d3f7SVikas Chaudhary } 260c0b9d3f7SVikas Chaudhary 261c0b9d3f7SVikas Chaudhary /* 262c0b9d3f7SVikas Chaudhary * If ping using LinkLocal address fails, try ping using 263c0b9d3f7SVikas Chaudhary * IPv6 address 264c0b9d3f7SVikas Chaudhary */ 265c0b9d3f7SVikas Chaudhary if (rval != QLA_SUCCESS) { 266c0b9d3f7SVikas Chaudhary options &= ~PING_IPV6_LINKLOCAL_ADDR; 267c0b9d3f7SVikas Chaudhary if (iface_num == 0) { 268c0b9d3f7SVikas Chaudhary options |= PING_IPV6_ADDR0; 269c0b9d3f7SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 270c0b9d3f7SVikas Chaudhary "Ping src: %pI6 " 271c0b9d3f7SVikas Chaudhary "dest: %pI6\n", __func__, 272c0b9d3f7SVikas Chaudhary &ha->ip_config.ipv6_addr0, 273c0b9d3f7SVikas Chaudhary ipaddr)); 274c0b9d3f7SVikas Chaudhary } else if (iface_num == 1) { 275c0b9d3f7SVikas Chaudhary options |= PING_IPV6_ADDR1; 276c0b9d3f7SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 277c0b9d3f7SVikas Chaudhary "Ping src: %pI6 " 278c0b9d3f7SVikas Chaudhary "dest: %pI6\n", __func__, 279c0b9d3f7SVikas Chaudhary &ha->ip_config.ipv6_addr1, 280c0b9d3f7SVikas Chaudhary ipaddr)); 281c0b9d3f7SVikas Chaudhary } 282c0b9d3f7SVikas Chaudhary rval = qla4xxx_ping_iocb(ha, options, payload_size, 283c0b9d3f7SVikas Chaudhary pid, ipaddr); 284c0b9d3f7SVikas Chaudhary if (rval) 285c0b9d3f7SVikas Chaudhary rval = -EINVAL; 286c0b9d3f7SVikas Chaudhary } 287c0b9d3f7SVikas Chaudhary } else 288c0b9d3f7SVikas Chaudhary rval = -ENOSYS; 289c0b9d3f7SVikas Chaudhary exit_send_ping: 290c0b9d3f7SVikas Chaudhary return rval; 291c0b9d3f7SVikas Chaudhary } 292c0b9d3f7SVikas Chaudhary 293587a1f16SAl Viro static umode_t ql4_attr_is_visible(int param_type, int param) 2943128c6c7SMike Christie { 2953128c6c7SMike Christie switch (param_type) { 296f27fb2efSMike Christie case ISCSI_HOST_PARAM: 297f27fb2efSMike Christie switch (param) { 298f27fb2efSMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 299f27fb2efSMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 300f27fb2efSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 3013254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_STATE: 3023254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_SPEED: 303f27fb2efSMike Christie return S_IRUGO; 304f27fb2efSMike Christie default: 305f27fb2efSMike Christie return 0; 306f27fb2efSMike Christie } 3073128c6c7SMike Christie case ISCSI_PARAM: 3083128c6c7SMike Christie switch (param) { 309590134faSMike Christie case ISCSI_PARAM_PERSISTENT_ADDRESS: 310590134faSMike Christie case ISCSI_PARAM_PERSISTENT_PORT: 3113128c6c7SMike Christie case ISCSI_PARAM_CONN_ADDRESS: 3123128c6c7SMike Christie case ISCSI_PARAM_CONN_PORT: 3131d063c17SMike Christie case ISCSI_PARAM_TARGET_NAME: 3141d063c17SMike Christie case ISCSI_PARAM_TPGT: 3151d063c17SMike Christie case ISCSI_PARAM_TARGET_ALIAS: 316b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_BURST: 317b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_R2T: 318b3a271a9SManish Rangankar case ISCSI_PARAM_FIRST_BURST: 319b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_RECV_DLENGTH: 320b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_XMIT_DLENGTH: 321de37920bSMike Christie case ISCSI_PARAM_IFACE_NAME: 322fca9f04dSMike Christie case ISCSI_PARAM_CHAP_OUT_IDX: 323fca9f04dSMike Christie case ISCSI_PARAM_CHAP_IN_IDX: 324fca9f04dSMike Christie case ISCSI_PARAM_USERNAME: 325fca9f04dSMike Christie case ISCSI_PARAM_PASSWORD: 326fca9f04dSMike Christie case ISCSI_PARAM_USERNAME_IN: 327fca9f04dSMike Christie case ISCSI_PARAM_PASSWORD_IN: 3283128c6c7SMike Christie return S_IRUGO; 3293128c6c7SMike Christie default: 3303128c6c7SMike Christie return 0; 3313128c6c7SMike Christie } 332b78dbba0SMike Christie case ISCSI_NET_PARAM: 333b78dbba0SMike Christie switch (param) { 334b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 335b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 336b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_GW: 337b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 338b78dbba0SMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 339b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 340b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 341b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 342b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 343b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 3446ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 3456ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 3466ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 347943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 3482ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 349b78dbba0SMike Christie return S_IRUGO; 350b78dbba0SMike Christie default: 351b78dbba0SMike Christie return 0; 352b78dbba0SMike Christie } 3533128c6c7SMike Christie } 3543128c6c7SMike Christie 3553128c6c7SMike Christie return 0; 3563128c6c7SMike Christie } 3573128c6c7SMike Christie 358376738afSNilesh Javali static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 359376738afSNilesh Javali uint32_t *num_entries, char *buf) 360376738afSNilesh Javali { 361376738afSNilesh Javali struct scsi_qla_host *ha = to_qla_host(shost); 362376738afSNilesh Javali struct ql4_chap_table *chap_table; 363376738afSNilesh Javali struct iscsi_chap_rec *chap_rec; 364376738afSNilesh Javali int max_chap_entries = 0; 365376738afSNilesh Javali int valid_chap_entries = 0; 366376738afSNilesh Javali int ret = 0, i; 367376738afSNilesh Javali 368376738afSNilesh Javali if (is_qla8022(ha)) 369376738afSNilesh Javali max_chap_entries = (ha->hw.flt_chap_size / 2) / 370376738afSNilesh Javali sizeof(struct ql4_chap_table); 371376738afSNilesh Javali else 372376738afSNilesh Javali max_chap_entries = MAX_CHAP_ENTRIES_40XX; 373376738afSNilesh Javali 374376738afSNilesh Javali ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", 375376738afSNilesh Javali __func__, *num_entries, chap_tbl_idx); 376376738afSNilesh Javali 377376738afSNilesh Javali if (!buf) { 378376738afSNilesh Javali ret = -ENOMEM; 379376738afSNilesh Javali goto exit_get_chap_list; 380376738afSNilesh Javali } 381376738afSNilesh Javali 382376738afSNilesh Javali chap_rec = (struct iscsi_chap_rec *) buf; 383376738afSNilesh Javali mutex_lock(&ha->chap_sem); 384376738afSNilesh Javali for (i = chap_tbl_idx; i < max_chap_entries; i++) { 385376738afSNilesh Javali chap_table = (struct ql4_chap_table *)ha->chap_list + i; 386376738afSNilesh Javali if (chap_table->cookie != 387376738afSNilesh Javali __constant_cpu_to_le16(CHAP_VALID_COOKIE)) 388376738afSNilesh Javali continue; 389376738afSNilesh Javali 390376738afSNilesh Javali chap_rec->chap_tbl_idx = i; 391376738afSNilesh Javali strncpy(chap_rec->username, chap_table->name, 392376738afSNilesh Javali ISCSI_CHAP_AUTH_NAME_MAX_LEN); 393376738afSNilesh Javali strncpy(chap_rec->password, chap_table->secret, 394376738afSNilesh Javali QL4_CHAP_MAX_SECRET_LEN); 395376738afSNilesh Javali chap_rec->password_length = chap_table->secret_len; 396376738afSNilesh Javali 397376738afSNilesh Javali if (chap_table->flags & BIT_7) /* local */ 398376738afSNilesh Javali chap_rec->chap_type = CHAP_TYPE_OUT; 399376738afSNilesh Javali 400376738afSNilesh Javali if (chap_table->flags & BIT_6) /* peer */ 401376738afSNilesh Javali chap_rec->chap_type = CHAP_TYPE_IN; 402376738afSNilesh Javali 403376738afSNilesh Javali chap_rec++; 404376738afSNilesh Javali 405376738afSNilesh Javali valid_chap_entries++; 406376738afSNilesh Javali if (valid_chap_entries == *num_entries) 407376738afSNilesh Javali break; 408376738afSNilesh Javali else 409376738afSNilesh Javali continue; 410376738afSNilesh Javali } 411376738afSNilesh Javali mutex_unlock(&ha->chap_sem); 412376738afSNilesh Javali 413376738afSNilesh Javali exit_get_chap_list: 414376738afSNilesh Javali ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", 415376738afSNilesh Javali __func__, valid_chap_entries); 416376738afSNilesh Javali *num_entries = valid_chap_entries; 417376738afSNilesh Javali return ret; 418376738afSNilesh Javali } 419376738afSNilesh Javali 420376738afSNilesh Javali static int __qla4xxx_is_chap_active(struct device *dev, void *data) 421376738afSNilesh Javali { 422376738afSNilesh Javali int ret = 0; 423376738afSNilesh Javali uint16_t *chap_tbl_idx = (uint16_t *) data; 424376738afSNilesh Javali struct iscsi_cls_session *cls_session; 425376738afSNilesh Javali struct iscsi_session *sess; 426376738afSNilesh Javali struct ddb_entry *ddb_entry; 427376738afSNilesh Javali 428376738afSNilesh Javali if (!iscsi_is_session_dev(dev)) 429376738afSNilesh Javali goto exit_is_chap_active; 430376738afSNilesh Javali 431376738afSNilesh Javali cls_session = iscsi_dev_to_session(dev); 432376738afSNilesh Javali sess = cls_session->dd_data; 433376738afSNilesh Javali ddb_entry = sess->dd_data; 434376738afSNilesh Javali 435376738afSNilesh Javali if (iscsi_session_chkready(cls_session)) 436376738afSNilesh Javali goto exit_is_chap_active; 437376738afSNilesh Javali 438376738afSNilesh Javali if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) 439376738afSNilesh Javali ret = 1; 440376738afSNilesh Javali 441376738afSNilesh Javali exit_is_chap_active: 442376738afSNilesh Javali return ret; 443376738afSNilesh Javali } 444376738afSNilesh Javali 445376738afSNilesh Javali static int qla4xxx_is_chap_active(struct Scsi_Host *shost, 446376738afSNilesh Javali uint16_t chap_tbl_idx) 447376738afSNilesh Javali { 448376738afSNilesh Javali int ret = 0; 449376738afSNilesh Javali 450376738afSNilesh Javali ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, 451376738afSNilesh Javali __qla4xxx_is_chap_active); 452376738afSNilesh Javali 453376738afSNilesh Javali return ret; 454376738afSNilesh Javali } 455376738afSNilesh Javali 456376738afSNilesh Javali static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) 457376738afSNilesh Javali { 458376738afSNilesh Javali struct scsi_qla_host *ha = to_qla_host(shost); 459376738afSNilesh Javali struct ql4_chap_table *chap_table; 460376738afSNilesh Javali dma_addr_t chap_dma; 461376738afSNilesh Javali int max_chap_entries = 0; 462376738afSNilesh Javali uint32_t offset = 0; 463376738afSNilesh Javali uint32_t chap_size; 464376738afSNilesh Javali int ret = 0; 465376738afSNilesh Javali 466376738afSNilesh Javali chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 467376738afSNilesh Javali if (chap_table == NULL) 468376738afSNilesh Javali return -ENOMEM; 469376738afSNilesh Javali 470376738afSNilesh Javali memset(chap_table, 0, sizeof(struct ql4_chap_table)); 471376738afSNilesh Javali 472376738afSNilesh Javali if (is_qla8022(ha)) 473376738afSNilesh Javali max_chap_entries = (ha->hw.flt_chap_size / 2) / 474376738afSNilesh Javali sizeof(struct ql4_chap_table); 475376738afSNilesh Javali else 476376738afSNilesh Javali max_chap_entries = MAX_CHAP_ENTRIES_40XX; 477376738afSNilesh Javali 478376738afSNilesh Javali if (chap_tbl_idx > max_chap_entries) { 479376738afSNilesh Javali ret = -EINVAL; 480376738afSNilesh Javali goto exit_delete_chap; 481376738afSNilesh Javali } 482376738afSNilesh Javali 483376738afSNilesh Javali /* Check if chap index is in use. 484376738afSNilesh Javali * If chap is in use don't delet chap entry */ 485376738afSNilesh Javali ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 486376738afSNilesh Javali if (ret) { 487376738afSNilesh Javali ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 488376738afSNilesh Javali "delete from flash\n", chap_tbl_idx); 489376738afSNilesh Javali ret = -EBUSY; 490376738afSNilesh Javali goto exit_delete_chap; 491376738afSNilesh Javali } 492376738afSNilesh Javali 493376738afSNilesh Javali chap_size = sizeof(struct ql4_chap_table); 494376738afSNilesh Javali if (is_qla40XX(ha)) 495376738afSNilesh Javali offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 496376738afSNilesh Javali else { 497376738afSNilesh Javali offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 498376738afSNilesh Javali /* flt_chap_size is CHAP table size for both ports 499376738afSNilesh Javali * so divide it by 2 to calculate the offset for second port 500376738afSNilesh Javali */ 501376738afSNilesh Javali if (ha->port_num == 1) 502376738afSNilesh Javali offset += (ha->hw.flt_chap_size / 2); 503376738afSNilesh Javali offset += (chap_tbl_idx * chap_size); 504376738afSNilesh Javali } 505376738afSNilesh Javali 506376738afSNilesh Javali ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 507376738afSNilesh Javali if (ret != QLA_SUCCESS) { 508376738afSNilesh Javali ret = -EINVAL; 509376738afSNilesh Javali goto exit_delete_chap; 510376738afSNilesh Javali } 511376738afSNilesh Javali 512376738afSNilesh Javali DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 513376738afSNilesh Javali __le16_to_cpu(chap_table->cookie))); 514376738afSNilesh Javali 515376738afSNilesh Javali if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 516376738afSNilesh Javali ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 517376738afSNilesh Javali goto exit_delete_chap; 518376738afSNilesh Javali } 519376738afSNilesh Javali 520376738afSNilesh Javali chap_table->cookie = __constant_cpu_to_le16(0xFFFF); 521376738afSNilesh Javali 522376738afSNilesh Javali offset = FLASH_CHAP_OFFSET | 523376738afSNilesh Javali (chap_tbl_idx * sizeof(struct ql4_chap_table)); 524376738afSNilesh Javali ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 525376738afSNilesh Javali FLASH_OPT_RMW_COMMIT); 526376738afSNilesh Javali if (ret == QLA_SUCCESS && ha->chap_list) { 527376738afSNilesh Javali mutex_lock(&ha->chap_sem); 528376738afSNilesh Javali /* Update ha chap_list cache */ 529376738afSNilesh Javali memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 530376738afSNilesh Javali chap_table, sizeof(struct ql4_chap_table)); 531376738afSNilesh Javali mutex_unlock(&ha->chap_sem); 532376738afSNilesh Javali } 533376738afSNilesh Javali if (ret != QLA_SUCCESS) 534376738afSNilesh Javali ret = -EINVAL; 535376738afSNilesh Javali 536376738afSNilesh Javali exit_delete_chap: 537376738afSNilesh Javali dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 538376738afSNilesh Javali return ret; 539376738afSNilesh Javali } 540376738afSNilesh Javali 541ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 542ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 543ed1086e0SVikas Chaudhary int param, char *buf) 544ed1086e0SVikas Chaudhary { 545ed1086e0SVikas Chaudhary struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 546ed1086e0SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 547ed1086e0SVikas Chaudhary int len = -ENOSYS; 548ed1086e0SVikas Chaudhary 549ed1086e0SVikas Chaudhary if (param_type != ISCSI_NET_PARAM) 550ed1086e0SVikas Chaudhary return -ENOSYS; 551ed1086e0SVikas Chaudhary 552ed1086e0SVikas Chaudhary switch (param) { 553ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_ADDR: 554ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 555ed1086e0SVikas Chaudhary break; 556ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_SUBNET: 557ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 558ed1086e0SVikas Chaudhary break; 559ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_GW: 560ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 561ed1086e0SVikas Chaudhary break; 562ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IFACE_ENABLE: 563ed1086e0SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 564ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 565ed1086e0SVikas Chaudhary (ha->ip_config.ipv4_options & 566ed1086e0SVikas Chaudhary IPOPT_IPV4_PROTOCOL_ENABLE) ? 567ed1086e0SVikas Chaudhary "enabled" : "disabled"); 568ed1086e0SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 569ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 570ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_options & 571ed1086e0SVikas Chaudhary IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 572ed1086e0SVikas Chaudhary "enabled" : "disabled"); 573ed1086e0SVikas Chaudhary break; 574ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 575ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 576ed1086e0SVikas Chaudhary (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 577ed1086e0SVikas Chaudhary "dhcp" : "static"); 578ed1086e0SVikas Chaudhary break; 579ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR: 580ed1086e0SVikas Chaudhary if (iface->iface_num == 0) 581ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 582ed1086e0SVikas Chaudhary if (iface->iface_num == 1) 583ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 584ed1086e0SVikas Chaudhary break; 585ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 586ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 587ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr); 588ed1086e0SVikas Chaudhary break; 589ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ROUTER: 590ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 591ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_default_router_addr); 592ed1086e0SVikas Chaudhary break; 593ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 594ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 595ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 596ed1086e0SVikas Chaudhary IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 597ed1086e0SVikas Chaudhary "nd" : "static"); 598ed1086e0SVikas Chaudhary break; 599ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 600ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 601ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 602ed1086e0SVikas Chaudhary IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 603ed1086e0SVikas Chaudhary "auto" : "static"); 604ed1086e0SVikas Chaudhary break; 6056ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 6066ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 6076ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 6086ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_vlan_tag & 6096ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 6106ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 6116ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 6126ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_vlan_tag & 6136ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 6146ac73e8cSVikas Chaudhary break; 6156ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 6166ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 6176ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 6186ac73e8cSVikas Chaudhary ((ha->ip_config.ipv4_vlan_tag >> 13) & 6196ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 6206ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 6216ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 6226ac73e8cSVikas Chaudhary ((ha->ip_config.ipv6_vlan_tag >> 13) & 6236ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 6246ac73e8cSVikas Chaudhary break; 6256ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 6266ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 6276ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 6286ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_options & 6296ac73e8cSVikas Chaudhary IPOPT_VLAN_TAGGING_ENABLE) ? 6306ac73e8cSVikas Chaudhary "enabled" : "disabled"); 6316ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 6326ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 6336ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_options & 6346ac73e8cSVikas Chaudhary IPV6_OPT_VLAN_TAGGING_ENABLE) ? 6356ac73e8cSVikas Chaudhary "enabled" : "disabled"); 6366ac73e8cSVikas Chaudhary break; 637943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 638943c157bSVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 639943c157bSVikas Chaudhary break; 6402ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 6412ada7fc5SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 6422ada7fc5SVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port); 6432ada7fc5SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 6442ada7fc5SVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port); 6452ada7fc5SVikas Chaudhary break; 646ed1086e0SVikas Chaudhary default: 647ed1086e0SVikas Chaudhary len = -ENOSYS; 648ed1086e0SVikas Chaudhary } 649ed1086e0SVikas Chaudhary 650ed1086e0SVikas Chaudhary return len; 651ed1086e0SVikas Chaudhary } 652ed1086e0SVikas Chaudhary 653b3a271a9SManish Rangankar static struct iscsi_endpoint * 654b3a271a9SManish Rangankar qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 655b3a271a9SManish Rangankar int non_blocking) 656b3a271a9SManish Rangankar { 657b3a271a9SManish Rangankar int ret; 658b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 659b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 660b3a271a9SManish Rangankar struct scsi_qla_host *ha; 661b3a271a9SManish Rangankar struct sockaddr_in *addr; 662b3a271a9SManish Rangankar struct sockaddr_in6 *addr6; 663b3a271a9SManish Rangankar 664b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 665b3a271a9SManish Rangankar if (!shost) { 666b3a271a9SManish Rangankar ret = -ENXIO; 667b3a271a9SManish Rangankar printk(KERN_ERR "%s: shost is NULL\n", 668b3a271a9SManish Rangankar __func__); 669b3a271a9SManish Rangankar return ERR_PTR(ret); 670b3a271a9SManish Rangankar } 671b3a271a9SManish Rangankar 672b3a271a9SManish Rangankar ha = iscsi_host_priv(shost); 673b3a271a9SManish Rangankar 674b3a271a9SManish Rangankar ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 675b3a271a9SManish Rangankar if (!ep) { 676b3a271a9SManish Rangankar ret = -ENOMEM; 677b3a271a9SManish Rangankar return ERR_PTR(ret); 678b3a271a9SManish Rangankar } 679b3a271a9SManish Rangankar 680b3a271a9SManish Rangankar qla_ep = ep->dd_data; 681b3a271a9SManish Rangankar memset(qla_ep, 0, sizeof(struct qla_endpoint)); 682b3a271a9SManish Rangankar if (dst_addr->sa_family == AF_INET) { 683b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 684b3a271a9SManish Rangankar addr = (struct sockaddr_in *)&qla_ep->dst_addr; 685b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 686b3a271a9SManish Rangankar (char *)&addr->sin_addr)); 687b3a271a9SManish Rangankar } else if (dst_addr->sa_family == AF_INET6) { 688b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, 689b3a271a9SManish Rangankar sizeof(struct sockaddr_in6)); 690b3a271a9SManish Rangankar addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 691b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 692b3a271a9SManish Rangankar (char *)&addr6->sin6_addr)); 693b3a271a9SManish Rangankar } 694b3a271a9SManish Rangankar 695b3a271a9SManish Rangankar qla_ep->host = shost; 696b3a271a9SManish Rangankar 697b3a271a9SManish Rangankar return ep; 698b3a271a9SManish Rangankar } 699b3a271a9SManish Rangankar 700b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 701b3a271a9SManish Rangankar { 702b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 703b3a271a9SManish Rangankar struct scsi_qla_host *ha; 704b3a271a9SManish Rangankar int ret = 0; 705b3a271a9SManish Rangankar 706b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 707b3a271a9SManish Rangankar qla_ep = ep->dd_data; 708b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 709b3a271a9SManish Rangankar 71013483730SMike Christie if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 711b3a271a9SManish Rangankar ret = 1; 712b3a271a9SManish Rangankar 713b3a271a9SManish Rangankar return ret; 714b3a271a9SManish Rangankar } 715b3a271a9SManish Rangankar 716b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 717b3a271a9SManish Rangankar { 718b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 719b3a271a9SManish Rangankar iscsi_destroy_endpoint(ep); 720b3a271a9SManish Rangankar } 721b3a271a9SManish Rangankar 722b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 723b3a271a9SManish Rangankar enum iscsi_param param, 724b3a271a9SManish Rangankar char *buf) 725b3a271a9SManish Rangankar { 726b3a271a9SManish Rangankar struct qla_endpoint *qla_ep = ep->dd_data; 727b3a271a9SManish Rangankar struct sockaddr *dst_addr; 728b3a271a9SManish Rangankar 729b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 730b3a271a9SManish Rangankar 731b3a271a9SManish Rangankar switch (param) { 732b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_PORT: 733b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_ADDRESS: 734b3a271a9SManish Rangankar if (!qla_ep) 735b3a271a9SManish Rangankar return -ENOTCONN; 736b3a271a9SManish Rangankar 737b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 738b3a271a9SManish Rangankar if (!dst_addr) 739b3a271a9SManish Rangankar return -ENOTCONN; 740b3a271a9SManish Rangankar 741b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 742b3a271a9SManish Rangankar &qla_ep->dst_addr, param, buf); 743b3a271a9SManish Rangankar default: 744b3a271a9SManish Rangankar return -ENOSYS; 745b3a271a9SManish Rangankar } 746b3a271a9SManish Rangankar } 747b3a271a9SManish Rangankar 748b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 749b3a271a9SManish Rangankar struct iscsi_stats *stats) 750b3a271a9SManish Rangankar { 751b3a271a9SManish Rangankar struct iscsi_session *sess; 752b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 753b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 754b3a271a9SManish Rangankar struct scsi_qla_host *ha; 755b3a271a9SManish Rangankar struct ql_iscsi_stats *ql_iscsi_stats; 756b3a271a9SManish Rangankar int stats_size; 757b3a271a9SManish Rangankar int ret; 758b3a271a9SManish Rangankar dma_addr_t iscsi_stats_dma; 759b3a271a9SManish Rangankar 760b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 761b3a271a9SManish Rangankar 762b3a271a9SManish Rangankar cls_sess = iscsi_conn_to_session(cls_conn); 763b3a271a9SManish Rangankar sess = cls_sess->dd_data; 764b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 765b3a271a9SManish Rangankar ha = ddb_entry->ha; 766b3a271a9SManish Rangankar 767b3a271a9SManish Rangankar stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 768b3a271a9SManish Rangankar /* Allocate memory */ 769b3a271a9SManish Rangankar ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 770b3a271a9SManish Rangankar &iscsi_stats_dma, GFP_KERNEL); 771b3a271a9SManish Rangankar if (!ql_iscsi_stats) { 772b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 773b3a271a9SManish Rangankar "Unable to allocate memory for iscsi stats\n"); 774b3a271a9SManish Rangankar goto exit_get_stats; 775b3a271a9SManish Rangankar } 776b3a271a9SManish Rangankar 777b3a271a9SManish Rangankar ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 778b3a271a9SManish Rangankar iscsi_stats_dma); 779b3a271a9SManish Rangankar if (ret != QLA_SUCCESS) { 780b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 781b3a271a9SManish Rangankar "Unable to retreive iscsi stats\n"); 782b3a271a9SManish Rangankar goto free_stats; 783b3a271a9SManish Rangankar } 784b3a271a9SManish Rangankar 785b3a271a9SManish Rangankar /* octets */ 786b3a271a9SManish Rangankar stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 787b3a271a9SManish Rangankar stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 788b3a271a9SManish Rangankar /* xmit pdus */ 789b3a271a9SManish Rangankar stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 790b3a271a9SManish Rangankar stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 791b3a271a9SManish Rangankar stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 792b3a271a9SManish Rangankar stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 793b3a271a9SManish Rangankar stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 794b3a271a9SManish Rangankar stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 795b3a271a9SManish Rangankar stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 796b3a271a9SManish Rangankar stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 797b3a271a9SManish Rangankar /* recv pdus */ 798b3a271a9SManish Rangankar stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 799b3a271a9SManish Rangankar stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 800b3a271a9SManish Rangankar stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 801b3a271a9SManish Rangankar stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 802b3a271a9SManish Rangankar stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 803b3a271a9SManish Rangankar stats->logoutrsp_pdus = 804b3a271a9SManish Rangankar le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 805b3a271a9SManish Rangankar stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 806b3a271a9SManish Rangankar stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 807b3a271a9SManish Rangankar stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 808b3a271a9SManish Rangankar 809b3a271a9SManish Rangankar free_stats: 810b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 811b3a271a9SManish Rangankar iscsi_stats_dma); 812b3a271a9SManish Rangankar exit_get_stats: 813b3a271a9SManish Rangankar return; 814b3a271a9SManish Rangankar } 815b3a271a9SManish Rangankar 8165c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 8175c656af7SMike Christie { 8185c656af7SMike Christie struct iscsi_cls_session *session; 819b3a271a9SManish Rangankar struct iscsi_session *sess; 820b3a271a9SManish Rangankar unsigned long flags; 821b3a271a9SManish Rangankar enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 8225c656af7SMike Christie 8235c656af7SMike Christie session = starget_to_session(scsi_target(sc->device)); 824b3a271a9SManish Rangankar sess = session->dd_data; 8255c656af7SMike Christie 826b3a271a9SManish Rangankar spin_lock_irqsave(&session->lock, flags); 827b3a271a9SManish Rangankar if (session->state == ISCSI_SESSION_FAILED) 828b3a271a9SManish Rangankar ret = BLK_EH_RESET_TIMER; 829b3a271a9SManish Rangankar spin_unlock_irqrestore(&session->lock, flags); 8305c656af7SMike Christie 831b3a271a9SManish Rangankar return ret; 832568d303bSMike Christie } 833afaf5a2dSDavid Somayajulu 8343254dbe9SVikas Chaudhary static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 8353254dbe9SVikas Chaudhary { 8363254dbe9SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 8373254dbe9SVikas Chaudhary struct iscsi_cls_host *ihost = shost_priv(shost); 8383254dbe9SVikas Chaudhary uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 8393254dbe9SVikas Chaudhary 8403254dbe9SVikas Chaudhary qla4xxx_get_firmware_state(ha); 8413254dbe9SVikas Chaudhary 8423254dbe9SVikas Chaudhary switch (ha->addl_fw_state & 0x0F00) { 8433254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_10MBPS: 8443254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_10MBPS; 8453254dbe9SVikas Chaudhary break; 8463254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_100MBPS: 8473254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_100MBPS; 8483254dbe9SVikas Chaudhary break; 8493254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_1GBPS: 8503254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_1GBPS; 8513254dbe9SVikas Chaudhary break; 8523254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_10GBPS: 8533254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_10GBPS; 8543254dbe9SVikas Chaudhary break; 8553254dbe9SVikas Chaudhary } 8563254dbe9SVikas Chaudhary ihost->port_speed = speed; 8573254dbe9SVikas Chaudhary } 8583254dbe9SVikas Chaudhary 8593254dbe9SVikas Chaudhary static void qla4xxx_set_port_state(struct Scsi_Host *shost) 8603254dbe9SVikas Chaudhary { 8613254dbe9SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 8623254dbe9SVikas Chaudhary struct iscsi_cls_host *ihost = shost_priv(shost); 8633254dbe9SVikas Chaudhary uint32_t state = ISCSI_PORT_STATE_DOWN; 8643254dbe9SVikas Chaudhary 8653254dbe9SVikas Chaudhary if (test_bit(AF_LINK_UP, &ha->flags)) 8663254dbe9SVikas Chaudhary state = ISCSI_PORT_STATE_UP; 8673254dbe9SVikas Chaudhary 8683254dbe9SVikas Chaudhary ihost->port_state = state; 8693254dbe9SVikas Chaudhary } 8703254dbe9SVikas Chaudhary 871aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 872aa1e93a2SMike Christie enum iscsi_host_param param, char *buf) 873aa1e93a2SMike Christie { 874aa1e93a2SMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 875aa1e93a2SMike Christie int len; 876aa1e93a2SMike Christie 877aa1e93a2SMike Christie switch (param) { 878aa1e93a2SMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 8797ffc49a6SMichael Chan len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 880aa1e93a2SMike Christie break; 88122236961SMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 8822bab08fcSVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 88322236961SMike Christie break; 8848ad5781aSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 88522236961SMike Christie len = sprintf(buf, "%s\n", ha->name_string); 8868ad5781aSMike Christie break; 8873254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_STATE: 8883254dbe9SVikas Chaudhary qla4xxx_set_port_state(shost); 8893254dbe9SVikas Chaudhary len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 8903254dbe9SVikas Chaudhary break; 8913254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_SPEED: 8923254dbe9SVikas Chaudhary qla4xxx_set_port_speed(shost); 8933254dbe9SVikas Chaudhary len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 8943254dbe9SVikas Chaudhary break; 895aa1e93a2SMike Christie default: 896aa1e93a2SMike Christie return -ENOSYS; 897aa1e93a2SMike Christie } 898aa1e93a2SMike Christie 899aa1e93a2SMike Christie return len; 900aa1e93a2SMike Christie } 901aa1e93a2SMike Christie 902ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 903ed1086e0SVikas Chaudhary { 904ed1086e0SVikas Chaudhary if (ha->iface_ipv4) 905ed1086e0SVikas Chaudhary return; 906ed1086e0SVikas Chaudhary 907ed1086e0SVikas Chaudhary /* IPv4 */ 908ed1086e0SVikas Chaudhary ha->iface_ipv4 = iscsi_create_iface(ha->host, 909ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 910ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV4, 0, 0); 911ed1086e0SVikas Chaudhary if (!ha->iface_ipv4) 912ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 913ed1086e0SVikas Chaudhary "iface0.\n"); 914ed1086e0SVikas Chaudhary } 915ed1086e0SVikas Chaudhary 916ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 917ed1086e0SVikas Chaudhary { 918ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 919ed1086e0SVikas Chaudhary /* IPv6 iface-0 */ 920ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 921ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 922ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 0, 923ed1086e0SVikas Chaudhary 0); 924ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 925ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 926ed1086e0SVikas Chaudhary "iface0.\n"); 927ed1086e0SVikas Chaudhary 928ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 929ed1086e0SVikas Chaudhary /* IPv6 iface-1 */ 930ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 931ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 932ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 1, 933ed1086e0SVikas Chaudhary 0); 934ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 935ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 936ed1086e0SVikas Chaudhary "iface1.\n"); 937ed1086e0SVikas Chaudhary } 938ed1086e0SVikas Chaudhary 939ed1086e0SVikas Chaudhary static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 940ed1086e0SVikas Chaudhary { 941ed1086e0SVikas Chaudhary if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 942ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 943ed1086e0SVikas Chaudhary 944ed1086e0SVikas Chaudhary if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 945ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 946ed1086e0SVikas Chaudhary } 947ed1086e0SVikas Chaudhary 948ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 949ed1086e0SVikas Chaudhary { 950ed1086e0SVikas Chaudhary if (ha->iface_ipv4) { 951ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv4); 952ed1086e0SVikas Chaudhary ha->iface_ipv4 = NULL; 953ed1086e0SVikas Chaudhary } 954ed1086e0SVikas Chaudhary } 955ed1086e0SVikas Chaudhary 956ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 957ed1086e0SVikas Chaudhary { 958ed1086e0SVikas Chaudhary if (ha->iface_ipv6_0) { 959ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_0); 960ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = NULL; 961ed1086e0SVikas Chaudhary } 962ed1086e0SVikas Chaudhary if (ha->iface_ipv6_1) { 963ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_1); 964ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = NULL; 965ed1086e0SVikas Chaudhary } 966ed1086e0SVikas Chaudhary } 967ed1086e0SVikas Chaudhary 968ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 969ed1086e0SVikas Chaudhary { 970ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 971ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 972ed1086e0SVikas Chaudhary } 973ed1086e0SVikas Chaudhary 974d00efe3fSMike Christie static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 975d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 976d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 977d00efe3fSMike Christie { 978d00efe3fSMike Christie /* 979d00efe3fSMike Christie * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 980d00efe3fSMike Christie * iface_num 1 is valid only for IPv6 Addr. 981d00efe3fSMike Christie */ 982d00efe3fSMike Christie switch (iface_param->param) { 983d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 984d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 985d00efe3fSMike Christie /* IPv6 Addr 1 */ 986d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 987d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr1)); 988d00efe3fSMike Christie else 989d00efe3fSMike Christie /* IPv6 Addr 0 */ 990d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 991d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr0)); 992d00efe3fSMike Christie break; 993d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 994d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 995d00efe3fSMike Christie break; 996d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 997d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_if_id)); 998d00efe3fSMike Christie break; 999d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 1000d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 1001d00efe3fSMike Christie break; 1002d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 1003d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 1004d00efe3fSMike Christie break; 1005d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1006d00efe3fSMike Christie /* Autocfg applies to even interface */ 1007d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 1008d00efe3fSMike Christie break; 1009d00efe3fSMike Christie 1010d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 1011d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= 1012d00efe3fSMike Christie cpu_to_le16( 1013d00efe3fSMike Christie ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 1014d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 1015d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= 1016d00efe3fSMike Christie cpu_to_le16( 1017d00efe3fSMike Christie IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 1018d00efe3fSMike Christie else 1019d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 1020d00efe3fSMike Christie "IPv6 addr\n"); 1021d00efe3fSMike Christie break; 1022d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1023d00efe3fSMike Christie /* Autocfg applies to even interface */ 1024d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 1025d00efe3fSMike Christie break; 1026d00efe3fSMike Christie 1027d00efe3fSMike Christie if (iface_param->value[0] == 1028d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 1029d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 1030d00efe3fSMike Christie IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 1031d00efe3fSMike Christie else if (iface_param->value[0] == 1032d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 1033d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 1034d00efe3fSMike Christie ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 1035d00efe3fSMike Christie else 1036d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 1037d00efe3fSMike Christie "IPv6 linklocal addr\n"); 1038d00efe3fSMike Christie break; 1039d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 1040d00efe3fSMike Christie /* Autocfg applies to even interface */ 1041d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 1042d00efe3fSMike Christie break; 1043d00efe3fSMike Christie 1044d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 1045d00efe3fSMike Christie memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 1046d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 1047d00efe3fSMike Christie break; 1048d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 1049ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 1050d00efe3fSMike Christie init_fw_cb->ipv6_opts |= 1051d00efe3fSMike Christie cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 1052ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 1053ed1086e0SVikas Chaudhary } else { 1054d00efe3fSMike Christie init_fw_cb->ipv6_opts &= 1055d00efe3fSMike Christie cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 1056d00efe3fSMike Christie 0xFFFF); 1057ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 1058ed1086e0SVikas Chaudhary } 1059d00efe3fSMike Christie break; 10602d63673bSMike Christie case ISCSI_NET_PARAM_VLAN_TAG: 1061d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 1062d00efe3fSMike Christie break; 10636ac73e8cSVikas Chaudhary init_fw_cb->ipv6_vlan_tag = 10646ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 10656ac73e8cSVikas Chaudhary break; 10666ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 10676ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 10686ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts |= 10696ac73e8cSVikas Chaudhary cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 10706ac73e8cSVikas Chaudhary else 10716ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts &= 10726ac73e8cSVikas Chaudhary cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 1073d00efe3fSMike Christie break; 1074943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 1075943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 1076943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 1077943c157bSVikas Chaudhary break; 10782ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 10792ada7fc5SVikas Chaudhary /* Autocfg applies to even interface */ 10802ada7fc5SVikas Chaudhary if (iface_param->iface_num & 0x1) 10812ada7fc5SVikas Chaudhary break; 10822ada7fc5SVikas Chaudhary 10832ada7fc5SVikas Chaudhary init_fw_cb->ipv6_port = 10842ada7fc5SVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 10852ada7fc5SVikas Chaudhary break; 1086d00efe3fSMike Christie default: 1087d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 1088d00efe3fSMike Christie iface_param->param); 1089d00efe3fSMike Christie break; 1090d00efe3fSMike Christie } 1091d00efe3fSMike Christie } 1092d00efe3fSMike Christie 1093d00efe3fSMike Christie static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 1094d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 1095d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 1096d00efe3fSMike Christie { 1097d00efe3fSMike Christie switch (iface_param->param) { 1098d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 1099d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_addr, iface_param->value, 1100d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_addr)); 1101d00efe3fSMike Christie break; 1102d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 1103d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 1104d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_subnet)); 1105d00efe3fSMike Christie break; 1106d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_GW: 1107d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 1108d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_gw_addr)); 1109d00efe3fSMike Christie break; 1110d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1111d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 1112d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts |= 1113d00efe3fSMike Christie cpu_to_le16(TCPOPT_DHCP_ENABLE); 1114d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 1115d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts &= 1116d00efe3fSMike Christie cpu_to_le16(~TCPOPT_DHCP_ENABLE); 1117d00efe3fSMike Christie else 1118d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 1119d00efe3fSMike Christie break; 1120d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 1121ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 1122d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts |= 11232bab08fcSVikas Chaudhary cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 1124ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 1125ed1086e0SVikas Chaudhary } else { 1126d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts &= 11272bab08fcSVikas Chaudhary cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 1128d00efe3fSMike Christie 0xFFFF); 1129ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 1130ed1086e0SVikas Chaudhary } 1131d00efe3fSMike Christie break; 11322d63673bSMike Christie case ISCSI_NET_PARAM_VLAN_TAG: 1133d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 1134d00efe3fSMike Christie break; 11356ac73e8cSVikas Chaudhary init_fw_cb->ipv4_vlan_tag = 11366ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 11376ac73e8cSVikas Chaudhary break; 11386ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 11396ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 11406ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts |= 11416ac73e8cSVikas Chaudhary cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 11426ac73e8cSVikas Chaudhary else 11436ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts &= 11446ac73e8cSVikas Chaudhary cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 1145d00efe3fSMike Christie break; 1146943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 1147943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 1148943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 1149943c157bSVikas Chaudhary break; 11502ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 11512ada7fc5SVikas Chaudhary init_fw_cb->ipv4_port = 11522ada7fc5SVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 11532ada7fc5SVikas Chaudhary break; 1154d00efe3fSMike Christie default: 1155d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 1156d00efe3fSMike Christie iface_param->param); 1157d00efe3fSMike Christie break; 1158d00efe3fSMike Christie } 1159d00efe3fSMike Christie } 1160d00efe3fSMike Christie 1161d00efe3fSMike Christie static void 1162d00efe3fSMike Christie qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 1163d00efe3fSMike Christie { 1164d00efe3fSMike Christie struct addr_ctrl_blk_def *acb; 1165d00efe3fSMike Christie acb = (struct addr_ctrl_blk_def *)init_fw_cb; 1166d00efe3fSMike Christie memset(acb->reserved1, 0, sizeof(acb->reserved1)); 1167d00efe3fSMike Christie memset(acb->reserved2, 0, sizeof(acb->reserved2)); 1168d00efe3fSMike Christie memset(acb->reserved3, 0, sizeof(acb->reserved3)); 1169d00efe3fSMike Christie memset(acb->reserved4, 0, sizeof(acb->reserved4)); 1170d00efe3fSMike Christie memset(acb->reserved5, 0, sizeof(acb->reserved5)); 1171d00efe3fSMike Christie memset(acb->reserved6, 0, sizeof(acb->reserved6)); 1172d00efe3fSMike Christie memset(acb->reserved7, 0, sizeof(acb->reserved7)); 1173d00efe3fSMike Christie memset(acb->reserved8, 0, sizeof(acb->reserved8)); 1174d00efe3fSMike Christie memset(acb->reserved9, 0, sizeof(acb->reserved9)); 1175d00efe3fSMike Christie memset(acb->reserved10, 0, sizeof(acb->reserved10)); 1176d00efe3fSMike Christie memset(acb->reserved11, 0, sizeof(acb->reserved11)); 1177d00efe3fSMike Christie memset(acb->reserved12, 0, sizeof(acb->reserved12)); 1178d00efe3fSMike Christie memset(acb->reserved13, 0, sizeof(acb->reserved13)); 1179d00efe3fSMike Christie memset(acb->reserved14, 0, sizeof(acb->reserved14)); 1180d00efe3fSMike Christie memset(acb->reserved15, 0, sizeof(acb->reserved15)); 1181d00efe3fSMike Christie } 1182d00efe3fSMike Christie 1183d00efe3fSMike Christie static int 118400c31889SMike Christie qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 1185d00efe3fSMike Christie { 1186d00efe3fSMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 1187d00efe3fSMike Christie int rval = 0; 1188d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param = NULL; 1189d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb = NULL; 1190d00efe3fSMike Christie dma_addr_t init_fw_cb_dma; 1191d00efe3fSMike Christie uint32_t mbox_cmd[MBOX_REG_COUNT]; 1192d00efe3fSMike Christie uint32_t mbox_sts[MBOX_REG_COUNT]; 119300c31889SMike Christie uint32_t rem = len; 119400c31889SMike Christie struct nlattr *attr; 1195d00efe3fSMike Christie 1196d00efe3fSMike Christie init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 1197d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 1198d00efe3fSMike Christie &init_fw_cb_dma, GFP_KERNEL); 1199d00efe3fSMike Christie if (!init_fw_cb) { 1200d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 1201d00efe3fSMike Christie __func__); 1202d00efe3fSMike Christie return -ENOMEM; 1203d00efe3fSMike Christie } 1204d00efe3fSMike Christie 1205d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 1206d00efe3fSMike Christie memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 1207d00efe3fSMike Christie memset(&mbox_sts, 0, sizeof(mbox_sts)); 1208d00efe3fSMike Christie 1209d00efe3fSMike Christie if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 1210d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 1211d00efe3fSMike Christie rval = -EIO; 1212d00efe3fSMike Christie goto exit_init_fw_cb; 1213d00efe3fSMike Christie } 1214d00efe3fSMike Christie 121500c31889SMike Christie nla_for_each_attr(attr, data, len, rem) { 121600c31889SMike Christie iface_param = nla_data(attr); 1217d00efe3fSMike Christie 1218d00efe3fSMike Christie if (iface_param->param_type != ISCSI_NET_PARAM) 1219d00efe3fSMike Christie continue; 1220d00efe3fSMike Christie 1221d00efe3fSMike Christie switch (iface_param->iface_type) { 1222d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV4: 1223d00efe3fSMike Christie switch (iface_param->iface_num) { 1224d00efe3fSMike Christie case 0: 1225d00efe3fSMike Christie qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 1226d00efe3fSMike Christie break; 1227d00efe3fSMike Christie default: 1228d00efe3fSMike Christie /* Cannot have more than one IPv4 interface */ 1229d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 1230d00efe3fSMike Christie "number = %d\n", 1231d00efe3fSMike Christie iface_param->iface_num); 1232d00efe3fSMike Christie break; 1233d00efe3fSMike Christie } 1234d00efe3fSMike Christie break; 1235d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV6: 1236d00efe3fSMike Christie switch (iface_param->iface_num) { 1237d00efe3fSMike Christie case 0: 1238d00efe3fSMike Christie case 1: 1239d00efe3fSMike Christie qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 1240d00efe3fSMike Christie break; 1241d00efe3fSMike Christie default: 1242d00efe3fSMike Christie /* Cannot have more than two IPv6 interface */ 1243d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 1244d00efe3fSMike Christie "number = %d\n", 1245d00efe3fSMike Christie iface_param->iface_num); 1246d00efe3fSMike Christie break; 1247d00efe3fSMike Christie } 1248d00efe3fSMike Christie break; 1249d00efe3fSMike Christie default: 1250d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 1251d00efe3fSMike Christie break; 1252d00efe3fSMike Christie } 1253d00efe3fSMike Christie } 1254d00efe3fSMike Christie 1255d00efe3fSMike Christie init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 1256d00efe3fSMike Christie 1257d00efe3fSMike Christie rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 1258d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 1259d00efe3fSMike Christie FLASH_OPT_RMW_COMMIT); 1260d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 1261d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 1262d00efe3fSMike Christie __func__); 1263d00efe3fSMike Christie rval = -EIO; 1264d00efe3fSMike Christie goto exit_init_fw_cb; 1265d00efe3fSMike Christie } 1266d00efe3fSMike Christie 1267ce505f9dSVikas Chaudhary rval = qla4xxx_disable_acb(ha); 1268ce505f9dSVikas Chaudhary if (rval != QLA_SUCCESS) { 1269ce505f9dSVikas Chaudhary ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 1270ce505f9dSVikas Chaudhary __func__); 1271ce505f9dSVikas Chaudhary rval = -EIO; 1272ce505f9dSVikas Chaudhary goto exit_init_fw_cb; 1273ce505f9dSVikas Chaudhary } 1274ce505f9dSVikas Chaudhary 1275ce505f9dSVikas Chaudhary wait_for_completion_timeout(&ha->disable_acb_comp, 1276ce505f9dSVikas Chaudhary DISABLE_ACB_TOV * HZ); 1277d00efe3fSMike Christie 1278d00efe3fSMike Christie qla4xxx_initcb_to_acb(init_fw_cb); 1279d00efe3fSMike Christie 1280d00efe3fSMike Christie rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 1281d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 1282d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 1283d00efe3fSMike Christie __func__); 1284d00efe3fSMike Christie rval = -EIO; 1285d00efe3fSMike Christie goto exit_init_fw_cb; 1286d00efe3fSMike Christie } 1287d00efe3fSMike Christie 1288d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 1289d00efe3fSMike Christie qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 1290d00efe3fSMike Christie init_fw_cb_dma); 1291d00efe3fSMike Christie 1292d00efe3fSMike Christie exit_init_fw_cb: 1293d00efe3fSMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 1294d00efe3fSMike Christie init_fw_cb, init_fw_cb_dma); 1295d00efe3fSMike Christie 1296d00efe3fSMike Christie return rval; 1297d00efe3fSMike Christie } 1298d00efe3fSMike Christie 1299fca9f04dSMike Christie static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 1300fca9f04dSMike Christie enum iscsi_param param, char *buf) 1301fca9f04dSMike Christie { 1302fca9f04dSMike Christie struct iscsi_session *sess = cls_sess->dd_data; 1303fca9f04dSMike Christie struct ddb_entry *ddb_entry = sess->dd_data; 1304fca9f04dSMike Christie struct scsi_qla_host *ha = ddb_entry->ha; 1305fca9f04dSMike Christie int rval, len; 1306fca9f04dSMike Christie uint16_t idx; 1307fca9f04dSMike Christie 1308fca9f04dSMike Christie switch (param) { 1309fca9f04dSMike Christie case ISCSI_PARAM_CHAP_IN_IDX: 1310fca9f04dSMike Christie rval = qla4xxx_get_chap_index(ha, sess->username_in, 1311fca9f04dSMike Christie sess->password_in, BIDI_CHAP, 1312fca9f04dSMike Christie &idx); 1313fca9f04dSMike Christie if (rval) 1314fca9f04dSMike Christie return -EINVAL; 1315fca9f04dSMike Christie 1316fca9f04dSMike Christie len = sprintf(buf, "%hu\n", idx); 1317fca9f04dSMike Christie break; 1318fca9f04dSMike Christie case ISCSI_PARAM_CHAP_OUT_IDX: 1319fca9f04dSMike Christie rval = qla4xxx_get_chap_index(ha, sess->username, 1320fca9f04dSMike Christie sess->password, LOCAL_CHAP, 1321fca9f04dSMike Christie &idx); 1322fca9f04dSMike Christie if (rval) 1323fca9f04dSMike Christie return -EINVAL; 1324fca9f04dSMike Christie 1325fca9f04dSMike Christie len = sprintf(buf, "%hu\n", idx); 1326fca9f04dSMike Christie break; 1327fca9f04dSMike Christie default: 1328fca9f04dSMike Christie return iscsi_session_get_param(cls_sess, param, buf); 1329fca9f04dSMike Christie } 1330fca9f04dSMike Christie 1331fca9f04dSMike Christie return len; 1332fca9f04dSMike Christie } 1333fca9f04dSMike Christie 1334b3a271a9SManish Rangankar static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 1335afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 1336afaf5a2dSDavid Somayajulu { 1337b3a271a9SManish Rangankar struct iscsi_conn *conn; 1338b3a271a9SManish Rangankar struct qla_conn *qla_conn; 1339b3a271a9SManish Rangankar struct sockaddr *dst_addr; 1340b3a271a9SManish Rangankar int len = 0; 1341afaf5a2dSDavid Somayajulu 1342b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1343b3a271a9SManish Rangankar qla_conn = conn->dd_data; 1344b3a271a9SManish Rangankar dst_addr = &qla_conn->qla_ep->dst_addr; 1345afaf5a2dSDavid Somayajulu 1346afaf5a2dSDavid Somayajulu switch (param) { 1347afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_PORT: 1348afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_ADDRESS: 1349b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1350b3a271a9SManish Rangankar dst_addr, param, buf); 1351afaf5a2dSDavid Somayajulu default: 1352b3a271a9SManish Rangankar return iscsi_conn_get_param(cls_conn, param, buf); 1353afaf5a2dSDavid Somayajulu } 1354afaf5a2dSDavid Somayajulu 1355afaf5a2dSDavid Somayajulu return len; 1356b3a271a9SManish Rangankar 1357afaf5a2dSDavid Somayajulu } 1358afaf5a2dSDavid Somayajulu 135913483730SMike Christie int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 136013483730SMike Christie { 136113483730SMike Christie uint32_t mbx_sts = 0; 136213483730SMike Christie uint16_t tmp_ddb_index; 136313483730SMike Christie int ret; 136413483730SMike Christie 136513483730SMike Christie get_ddb_index: 136613483730SMike Christie tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 136713483730SMike Christie 136813483730SMike Christie if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 136913483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 137013483730SMike Christie "Free DDB index not available\n")); 137113483730SMike Christie ret = QLA_ERROR; 137213483730SMike Christie goto exit_get_ddb_index; 137313483730SMike Christie } 137413483730SMike Christie 137513483730SMike Christie if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 137613483730SMike Christie goto get_ddb_index; 137713483730SMike Christie 137813483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 137913483730SMike Christie "Found a free DDB index at %d\n", tmp_ddb_index)); 138013483730SMike Christie ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 138113483730SMike Christie if (ret == QLA_ERROR) { 138213483730SMike Christie if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 138313483730SMike Christie ql4_printk(KERN_INFO, ha, 138413483730SMike Christie "DDB index = %d not available trying next\n", 138513483730SMike Christie tmp_ddb_index); 138613483730SMike Christie goto get_ddb_index; 138713483730SMike Christie } 138813483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 138913483730SMike Christie "Free FW DDB not available\n")); 139013483730SMike Christie } 139113483730SMike Christie 139213483730SMike Christie *ddb_index = tmp_ddb_index; 139313483730SMike Christie 139413483730SMike Christie exit_get_ddb_index: 139513483730SMike Christie return ret; 139613483730SMike Christie } 139713483730SMike Christie 139813483730SMike Christie static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 139913483730SMike Christie struct ddb_entry *ddb_entry, 140013483730SMike Christie char *existing_ipaddr, 140113483730SMike Christie char *user_ipaddr) 140213483730SMike Christie { 140313483730SMike Christie uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 140413483730SMike Christie char formatted_ipaddr[DDB_IPADDR_LEN]; 140513483730SMike Christie int status = QLA_SUCCESS, ret = 0; 140613483730SMike Christie 140713483730SMike Christie if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 140813483730SMike Christie ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 140913483730SMike Christie '\0', NULL); 141013483730SMike Christie if (ret == 0) { 141113483730SMike Christie status = QLA_ERROR; 141213483730SMike Christie goto out_match; 141313483730SMike Christie } 141413483730SMike Christie ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 141513483730SMike Christie } else { 141613483730SMike Christie ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 141713483730SMike Christie '\0', NULL); 141813483730SMike Christie if (ret == 0) { 141913483730SMike Christie status = QLA_ERROR; 142013483730SMike Christie goto out_match; 142113483730SMike Christie } 142213483730SMike Christie ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 142313483730SMike Christie } 142413483730SMike Christie 142513483730SMike Christie if (strcmp(existing_ipaddr, formatted_ipaddr)) 142613483730SMike Christie status = QLA_ERROR; 142713483730SMike Christie 142813483730SMike Christie out_match: 142913483730SMike Christie return status; 143013483730SMike Christie } 143113483730SMike Christie 143213483730SMike Christie static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 143313483730SMike Christie struct iscsi_cls_conn *cls_conn) 143413483730SMike Christie { 143513483730SMike Christie int idx = 0, max_ddbs, rval; 143613483730SMike Christie struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 143713483730SMike Christie struct iscsi_session *sess, *existing_sess; 143813483730SMike Christie struct iscsi_conn *conn, *existing_conn; 143913483730SMike Christie struct ddb_entry *ddb_entry; 144013483730SMike Christie 144113483730SMike Christie sess = cls_sess->dd_data; 144213483730SMike Christie conn = cls_conn->dd_data; 144313483730SMike Christie 144413483730SMike Christie if (sess->targetname == NULL || 144513483730SMike Christie conn->persistent_address == NULL || 144613483730SMike Christie conn->persistent_port == 0) 144713483730SMike Christie return QLA_ERROR; 144813483730SMike Christie 144913483730SMike Christie max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 145013483730SMike Christie MAX_DEV_DB_ENTRIES; 145113483730SMike Christie 145213483730SMike Christie for (idx = 0; idx < max_ddbs; idx++) { 145313483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 145413483730SMike Christie if (ddb_entry == NULL) 145513483730SMike Christie continue; 145613483730SMike Christie 145713483730SMike Christie if (ddb_entry->ddb_type != FLASH_DDB) 145813483730SMike Christie continue; 145913483730SMike Christie 146013483730SMike Christie existing_sess = ddb_entry->sess->dd_data; 146113483730SMike Christie existing_conn = ddb_entry->conn->dd_data; 146213483730SMike Christie 146313483730SMike Christie if (existing_sess->targetname == NULL || 146413483730SMike Christie existing_conn->persistent_address == NULL || 146513483730SMike Christie existing_conn->persistent_port == 0) 146613483730SMike Christie continue; 146713483730SMike Christie 146813483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 146913483730SMike Christie "IQN = %s User IQN = %s\n", 147013483730SMike Christie existing_sess->targetname, 147113483730SMike Christie sess->targetname)); 147213483730SMike Christie 147313483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 147413483730SMike Christie "IP = %s User IP = %s\n", 147513483730SMike Christie existing_conn->persistent_address, 147613483730SMike Christie conn->persistent_address)); 147713483730SMike Christie 147813483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 147913483730SMike Christie "Port = %d User Port = %d\n", 148013483730SMike Christie existing_conn->persistent_port, 148113483730SMike Christie conn->persistent_port)); 148213483730SMike Christie 148313483730SMike Christie if (strcmp(existing_sess->targetname, sess->targetname)) 148413483730SMike Christie continue; 148513483730SMike Christie rval = qla4xxx_match_ipaddress(ha, ddb_entry, 148613483730SMike Christie existing_conn->persistent_address, 148713483730SMike Christie conn->persistent_address); 148813483730SMike Christie if (rval == QLA_ERROR) 148913483730SMike Christie continue; 149013483730SMike Christie if (existing_conn->persistent_port != conn->persistent_port) 149113483730SMike Christie continue; 149213483730SMike Christie break; 149313483730SMike Christie } 149413483730SMike Christie 149513483730SMike Christie if (idx == max_ddbs) 149613483730SMike Christie return QLA_ERROR; 149713483730SMike Christie 149813483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 149913483730SMike Christie "Match found in fwdb sessions\n")); 150013483730SMike Christie return QLA_SUCCESS; 150113483730SMike Christie } 150213483730SMike Christie 1503b3a271a9SManish Rangankar static struct iscsi_cls_session * 1504b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, 1505b3a271a9SManish Rangankar uint16_t cmds_max, uint16_t qdepth, 1506b3a271a9SManish Rangankar uint32_t initial_cmdsn) 1507b3a271a9SManish Rangankar { 1508b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 1509b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1510b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 1511b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 151213483730SMike Christie uint16_t ddb_index; 1513b3a271a9SManish Rangankar struct iscsi_session *sess; 1514b3a271a9SManish Rangankar struct sockaddr *dst_addr; 1515b3a271a9SManish Rangankar int ret; 1516b3a271a9SManish Rangankar 1517b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1518b3a271a9SManish Rangankar if (!ep) { 1519b3a271a9SManish Rangankar printk(KERN_ERR "qla4xxx: missing ep.\n"); 1520b3a271a9SManish Rangankar return NULL; 1521b3a271a9SManish Rangankar } 1522b3a271a9SManish Rangankar 1523b3a271a9SManish Rangankar qla_ep = ep->dd_data; 1524b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1525b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 1526736cf369SManish Rangankar 152713483730SMike Christie ret = qla4xxx_get_ddb_index(ha, &ddb_index); 152813483730SMike Christie if (ret == QLA_ERROR) 1529b3a271a9SManish Rangankar return NULL; 1530b3a271a9SManish Rangankar 1531b3a271a9SManish Rangankar cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 1532b3a271a9SManish Rangankar cmds_max, sizeof(struct ddb_entry), 1533b3a271a9SManish Rangankar sizeof(struct ql4_task_data), 1534b3a271a9SManish Rangankar initial_cmdsn, ddb_index); 1535b3a271a9SManish Rangankar if (!cls_sess) 1536b3a271a9SManish Rangankar return NULL; 1537b3a271a9SManish Rangankar 1538b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1539b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1540b3a271a9SManish Rangankar ddb_entry->fw_ddb_index = ddb_index; 1541b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 1542b3a271a9SManish Rangankar ddb_entry->ha = ha; 1543b3a271a9SManish Rangankar ddb_entry->sess = cls_sess; 154413483730SMike Christie ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 154513483730SMike Christie ddb_entry->ddb_change = qla4xxx_ddb_change; 1546b3a271a9SManish Rangankar cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 1547b3a271a9SManish Rangankar ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1548b3a271a9SManish Rangankar ha->tot_ddbs++; 1549b3a271a9SManish Rangankar 1550b3a271a9SManish Rangankar return cls_sess; 1551b3a271a9SManish Rangankar } 1552b3a271a9SManish Rangankar 1553b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 1554b3a271a9SManish Rangankar { 1555b3a271a9SManish Rangankar struct iscsi_session *sess; 1556b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1557b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1558b3a271a9SManish Rangankar unsigned long flags; 1559b3a271a9SManish Rangankar 1560b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1561b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1562b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1563b3a271a9SManish Rangankar ha = ddb_entry->ha; 1564b3a271a9SManish Rangankar 1565736cf369SManish Rangankar qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 1566736cf369SManish Rangankar 1567b3a271a9SManish Rangankar spin_lock_irqsave(&ha->hardware_lock, flags); 1568b3a271a9SManish Rangankar qla4xxx_free_ddb(ha, ddb_entry); 1569b3a271a9SManish Rangankar spin_unlock_irqrestore(&ha->hardware_lock, flags); 1570b3a271a9SManish Rangankar iscsi_session_teardown(cls_sess); 1571b3a271a9SManish Rangankar } 1572b3a271a9SManish Rangankar 1573b3a271a9SManish Rangankar static struct iscsi_cls_conn * 1574b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 1575b3a271a9SManish Rangankar { 1576b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1577b3a271a9SManish Rangankar struct iscsi_session *sess; 1578b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1579b3a271a9SManish Rangankar 1580b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1581b3a271a9SManish Rangankar cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 1582b3a271a9SManish Rangankar conn_idx); 1583ff1d0319SMike Christie if (!cls_conn) 1584ff1d0319SMike Christie return NULL; 1585ff1d0319SMike Christie 1586b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1587b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1588b3a271a9SManish Rangankar ddb_entry->conn = cls_conn; 1589b3a271a9SManish Rangankar 1590b3a271a9SManish Rangankar return cls_conn; 1591b3a271a9SManish Rangankar } 1592b3a271a9SManish Rangankar 1593b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 1594b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 1595b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading) 1596b3a271a9SManish Rangankar { 1597b3a271a9SManish Rangankar struct iscsi_conn *conn; 1598b3a271a9SManish Rangankar struct qla_conn *qla_conn; 1599b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 1600b3a271a9SManish Rangankar 1601b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1602b3a271a9SManish Rangankar 1603b3a271a9SManish Rangankar if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 1604b3a271a9SManish Rangankar return -EINVAL; 1605b3a271a9SManish Rangankar ep = iscsi_lookup_endpoint(transport_fd); 1606b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1607b3a271a9SManish Rangankar qla_conn = conn->dd_data; 1608b3a271a9SManish Rangankar qla_conn->qla_ep = ep->dd_data; 1609b3a271a9SManish Rangankar return 0; 1610b3a271a9SManish Rangankar } 1611b3a271a9SManish Rangankar 1612b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 1613b3a271a9SManish Rangankar { 1614b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1615b3a271a9SManish Rangankar struct iscsi_session *sess; 1616b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1617b3a271a9SManish Rangankar struct scsi_qla_host *ha; 161813483730SMike Christie struct dev_db_entry *fw_ddb_entry = NULL; 1619b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1620b3a271a9SManish Rangankar uint32_t mbx_sts = 0; 1621b3a271a9SManish Rangankar int ret = 0; 1622b3a271a9SManish Rangankar int status = QLA_SUCCESS; 1623b3a271a9SManish Rangankar 1624b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1625b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1626b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1627b3a271a9SManish Rangankar ha = ddb_entry->ha; 1628b3a271a9SManish Rangankar 162913483730SMike Christie /* Check if we have matching FW DDB, if yes then do not 163013483730SMike Christie * login to this target. This could cause target to logout previous 163113483730SMike Christie * connection 163213483730SMike Christie */ 163313483730SMike Christie ret = qla4xxx_match_fwdb_session(ha, cls_conn); 163413483730SMike Christie if (ret == QLA_SUCCESS) { 163513483730SMike Christie ql4_printk(KERN_INFO, ha, 163613483730SMike Christie "Session already exist in FW.\n"); 163713483730SMike Christie ret = -EEXIST; 163813483730SMike Christie goto exit_conn_start; 163913483730SMike Christie } 164013483730SMike Christie 1641b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1642b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1643b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1644b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1645b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 164613483730SMike Christie ret = -ENOMEM; 164713483730SMike Christie goto exit_conn_start; 1648b3a271a9SManish Rangankar } 1649b3a271a9SManish Rangankar 1650b3a271a9SManish Rangankar ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 1651b3a271a9SManish Rangankar if (ret) { 1652b3a271a9SManish Rangankar /* If iscsid is stopped and started then no need to do 1653b3a271a9SManish Rangankar * set param again since ddb state will be already 1654b3a271a9SManish Rangankar * active and FW does not allow set ddb to an 1655b3a271a9SManish Rangankar * active session. 1656b3a271a9SManish Rangankar */ 1657b3a271a9SManish Rangankar if (mbx_sts) 1658b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == 1659f922da79SManish Rangankar DDB_DS_SESSION_ACTIVE) { 166013483730SMike Christie ddb_entry->unblock_sess(ddb_entry->sess); 1661b3a271a9SManish Rangankar goto exit_set_param; 1662f922da79SManish Rangankar } 1663b3a271a9SManish Rangankar 1664b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 1665b3a271a9SManish Rangankar __func__, ddb_entry->fw_ddb_index); 1666b3a271a9SManish Rangankar goto exit_conn_start; 1667b3a271a9SManish Rangankar } 1668b3a271a9SManish Rangankar 1669b3a271a9SManish Rangankar status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1670b3a271a9SManish Rangankar if (status == QLA_ERROR) { 16710e7e8501SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 16720e7e8501SManish Rangankar sess->targetname); 1673b3a271a9SManish Rangankar ret = -EINVAL; 1674b3a271a9SManish Rangankar goto exit_conn_start; 1675b3a271a9SManish Rangankar } 1676b3a271a9SManish Rangankar 167798270ab4SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 1678b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1679b3a271a9SManish Rangankar 168098270ab4SManish Rangankar DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 168198270ab4SManish Rangankar ddb_entry->fw_ddb_device_state)); 168298270ab4SManish Rangankar 1683b3a271a9SManish Rangankar exit_set_param: 1684b3a271a9SManish Rangankar ret = 0; 1685b3a271a9SManish Rangankar 1686b3a271a9SManish Rangankar exit_conn_start: 168713483730SMike Christie if (fw_ddb_entry) 1688b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1689b3a271a9SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 1690b3a271a9SManish Rangankar return ret; 1691b3a271a9SManish Rangankar } 1692b3a271a9SManish Rangankar 1693b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 1694b3a271a9SManish Rangankar { 1695b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1696b3a271a9SManish Rangankar struct iscsi_session *sess; 1697b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1698b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1699b3a271a9SManish Rangankar int options; 1700b3a271a9SManish Rangankar 1701b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1702b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1703b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1704b3a271a9SManish Rangankar ha = ddb_entry->ha; 1705b3a271a9SManish Rangankar 1706b3a271a9SManish Rangankar options = LOGOUT_OPTION_CLOSE_SESSION; 1707b3a271a9SManish Rangankar if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 1708b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 1709b3a271a9SManish Rangankar } 1710b3a271a9SManish Rangankar 1711b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata) 1712b3a271a9SManish Rangankar { 1713b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1714b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1715b3a271a9SManish Rangankar struct passthru_status *sts; 1716b3a271a9SManish Rangankar struct iscsi_task *task; 1717b3a271a9SManish Rangankar struct iscsi_hdr *hdr; 1718b3a271a9SManish Rangankar uint8_t *data; 1719b3a271a9SManish Rangankar uint32_t data_len; 1720b3a271a9SManish Rangankar struct iscsi_conn *conn; 1721b3a271a9SManish Rangankar int hdr_len; 1722b3a271a9SManish Rangankar itt_t itt; 1723b3a271a9SManish Rangankar 1724b3a271a9SManish Rangankar task_data = container_of(wdata, struct ql4_task_data, task_work); 1725b3a271a9SManish Rangankar ha = task_data->ha; 1726b3a271a9SManish Rangankar task = task_data->task; 1727b3a271a9SManish Rangankar sts = &task_data->sts; 1728b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1729b3a271a9SManish Rangankar 1730b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Status returned\n")); 1731b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(sts, 64)); 1732b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Response buffer")); 1733b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 1734b3a271a9SManish Rangankar 1735b3a271a9SManish Rangankar conn = task->conn; 1736b3a271a9SManish Rangankar 1737b3a271a9SManish Rangankar switch (sts->completionStatus) { 1738b3a271a9SManish Rangankar case PASSTHRU_STATUS_COMPLETE: 1739b3a271a9SManish Rangankar hdr = (struct iscsi_hdr *)task_data->resp_buffer; 1740b3a271a9SManish Rangankar /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 1741b3a271a9SManish Rangankar itt = sts->handle; 1742b3a271a9SManish Rangankar hdr->itt = itt; 1743b3a271a9SManish Rangankar data = task_data->resp_buffer + hdr_len; 1744b3a271a9SManish Rangankar data_len = task_data->resp_len - hdr_len; 1745b3a271a9SManish Rangankar iscsi_complete_pdu(conn, hdr, data, data_len); 1746b3a271a9SManish Rangankar break; 1747b3a271a9SManish Rangankar default: 1748b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 1749b3a271a9SManish Rangankar sts->completionStatus); 1750b3a271a9SManish Rangankar break; 1751b3a271a9SManish Rangankar } 1752b3a271a9SManish Rangankar return; 1753b3a271a9SManish Rangankar } 1754b3a271a9SManish Rangankar 1755b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 1756b3a271a9SManish Rangankar { 1757b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1758b3a271a9SManish Rangankar struct iscsi_session *sess; 1759b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1760b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1761b3a271a9SManish Rangankar int hdr_len; 1762b3a271a9SManish Rangankar 1763b3a271a9SManish Rangankar sess = task->conn->session; 1764b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1765b3a271a9SManish Rangankar ha = ddb_entry->ha; 1766b3a271a9SManish Rangankar task_data = task->dd_data; 1767b3a271a9SManish Rangankar memset(task_data, 0, sizeof(struct ql4_task_data)); 1768b3a271a9SManish Rangankar 1769b3a271a9SManish Rangankar if (task->sc) { 1770b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, 1771b3a271a9SManish Rangankar "%s: SCSI Commands not implemented\n", __func__); 1772b3a271a9SManish Rangankar return -EINVAL; 1773b3a271a9SManish Rangankar } 1774b3a271a9SManish Rangankar 1775b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1776b3a271a9SManish Rangankar task_data->ha = ha; 1777b3a271a9SManish Rangankar task_data->task = task; 1778b3a271a9SManish Rangankar 1779b3a271a9SManish Rangankar if (task->data_count) { 1780b3a271a9SManish Rangankar task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 1781b3a271a9SManish Rangankar task->data_count, 1782b3a271a9SManish Rangankar PCI_DMA_TODEVICE); 1783b3a271a9SManish Rangankar } 1784b3a271a9SManish Rangankar 1785b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1786b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1787b3a271a9SManish Rangankar 178869ca216eSManish Rangankar task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 1789b3a271a9SManish Rangankar task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 1790b3a271a9SManish Rangankar task_data->resp_len, 1791b3a271a9SManish Rangankar &task_data->resp_dma, 1792b3a271a9SManish Rangankar GFP_ATOMIC); 1793b3a271a9SManish Rangankar if (!task_data->resp_buffer) 1794b3a271a9SManish Rangankar goto exit_alloc_pdu; 1795b3a271a9SManish Rangankar 179669ca216eSManish Rangankar task_data->req_len = task->data_count + hdr_len; 1797b3a271a9SManish Rangankar task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 179869ca216eSManish Rangankar task_data->req_len, 1799b3a271a9SManish Rangankar &task_data->req_dma, 1800b3a271a9SManish Rangankar GFP_ATOMIC); 1801b3a271a9SManish Rangankar if (!task_data->req_buffer) 1802b3a271a9SManish Rangankar goto exit_alloc_pdu; 1803b3a271a9SManish Rangankar 1804b3a271a9SManish Rangankar task->hdr = task_data->req_buffer; 1805b3a271a9SManish Rangankar 1806b3a271a9SManish Rangankar INIT_WORK(&task_data->task_work, qla4xxx_task_work); 1807b3a271a9SManish Rangankar 1808b3a271a9SManish Rangankar return 0; 1809b3a271a9SManish Rangankar 1810b3a271a9SManish Rangankar exit_alloc_pdu: 1811b3a271a9SManish Rangankar if (task_data->resp_buffer) 1812b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1813b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 1814b3a271a9SManish Rangankar 1815b3a271a9SManish Rangankar if (task_data->req_buffer) 181669ca216eSManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->req_len, 1817b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1818b3a271a9SManish Rangankar return -ENOMEM; 1819b3a271a9SManish Rangankar } 1820b3a271a9SManish Rangankar 1821b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *task) 1822b3a271a9SManish Rangankar { 1823b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1824b3a271a9SManish Rangankar struct iscsi_session *sess; 1825b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1826b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1827b3a271a9SManish Rangankar int hdr_len; 1828b3a271a9SManish Rangankar 1829b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1830b3a271a9SManish Rangankar sess = task->conn->session; 1831b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1832b3a271a9SManish Rangankar ha = ddb_entry->ha; 1833b3a271a9SManish Rangankar task_data = task->dd_data; 1834b3a271a9SManish Rangankar 1835b3a271a9SManish Rangankar if (task->data_count) { 1836b3a271a9SManish Rangankar dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 1837b3a271a9SManish Rangankar task->data_count, PCI_DMA_TODEVICE); 1838b3a271a9SManish Rangankar } 1839b3a271a9SManish Rangankar 1840b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1841b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1842b3a271a9SManish Rangankar 1843b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1844b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 184569ca216eSManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->req_len, 1846b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1847b3a271a9SManish Rangankar return; 1848b3a271a9SManish Rangankar } 1849b3a271a9SManish Rangankar 1850b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *task) 1851b3a271a9SManish Rangankar { 1852b3a271a9SManish Rangankar struct scsi_cmnd *sc = task->sc; 1853b3a271a9SManish Rangankar struct iscsi_session *sess = task->conn->session; 1854b3a271a9SManish Rangankar struct ddb_entry *ddb_entry = sess->dd_data; 1855b3a271a9SManish Rangankar struct scsi_qla_host *ha = ddb_entry->ha; 1856b3a271a9SManish Rangankar 1857b3a271a9SManish Rangankar if (!sc) 1858b3a271a9SManish Rangankar return qla4xxx_send_passthru0(task); 1859b3a271a9SManish Rangankar 1860b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 1861b3a271a9SManish Rangankar __func__); 1862b3a271a9SManish Rangankar return -ENOSYS; 1863b3a271a9SManish Rangankar } 1864b3a271a9SManish Rangankar 186513483730SMike Christie static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 186613483730SMike Christie struct dev_db_entry *fw_ddb_entry, 186713483730SMike Christie struct iscsi_cls_session *cls_sess, 186813483730SMike Christie struct iscsi_cls_conn *cls_conn) 186913483730SMike Christie { 187013483730SMike Christie int buflen = 0; 187113483730SMike Christie struct iscsi_session *sess; 1872376738afSNilesh Javali struct ddb_entry *ddb_entry; 187313483730SMike Christie struct iscsi_conn *conn; 187413483730SMike Christie char ip_addr[DDB_IPADDR_LEN]; 187513483730SMike Christie uint16_t options = 0; 187613483730SMike Christie 187713483730SMike Christie sess = cls_sess->dd_data; 1878376738afSNilesh Javali ddb_entry = sess->dd_data; 187913483730SMike Christie conn = cls_conn->dd_data; 188013483730SMike Christie 1881376738afSNilesh Javali ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 1882376738afSNilesh Javali 188313483730SMike Christie conn->max_recv_dlength = BYTE_UNITS * 188413483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 188513483730SMike Christie 188613483730SMike Christie conn->max_xmit_dlength = BYTE_UNITS * 188713483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 188813483730SMike Christie 188913483730SMike Christie sess->initial_r2t_en = 189013483730SMike Christie (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 189113483730SMike Christie 189213483730SMike Christie sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 189313483730SMike Christie 189413483730SMike Christie sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 189513483730SMike Christie 189613483730SMike Christie sess->first_burst = BYTE_UNITS * 189713483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 189813483730SMike Christie 189913483730SMike Christie sess->max_burst = BYTE_UNITS * 190013483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 190113483730SMike Christie 190213483730SMike Christie sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 190313483730SMike Christie 190413483730SMike Christie sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 190513483730SMike Christie 190613483730SMike Christie conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 190713483730SMike Christie 190813483730SMike Christie sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 190913483730SMike Christie 191013483730SMike Christie options = le16_to_cpu(fw_ddb_entry->options); 191113483730SMike Christie if (options & DDB_OPT_IPV6_DEVICE) 191213483730SMike Christie sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 191313483730SMike Christie else 191413483730SMike Christie sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 191513483730SMike Christie 191613483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 191713483730SMike Christie (char *)fw_ddb_entry->iscsi_name, buflen); 191813483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 191913483730SMike Christie (char *)ha->name_string, buflen); 192013483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 192113483730SMike Christie (char *)ip_addr, buflen); 19226c1b8789SVikas Chaudhary iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS, 19236c1b8789SVikas Chaudhary (char *)fw_ddb_entry->iscsi_alias, buflen); 192413483730SMike Christie } 192513483730SMike Christie 192613483730SMike Christie void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 192713483730SMike Christie struct ddb_entry *ddb_entry) 192813483730SMike Christie { 192913483730SMike Christie struct iscsi_cls_session *cls_sess; 193013483730SMike Christie struct iscsi_cls_conn *cls_conn; 193113483730SMike Christie uint32_t ddb_state; 193213483730SMike Christie dma_addr_t fw_ddb_entry_dma; 193313483730SMike Christie struct dev_db_entry *fw_ddb_entry; 193413483730SMike Christie 193513483730SMike Christie fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 193613483730SMike Christie &fw_ddb_entry_dma, GFP_KERNEL); 193713483730SMike Christie if (!fw_ddb_entry) { 193813483730SMike Christie ql4_printk(KERN_ERR, ha, 193913483730SMike Christie "%s: Unable to allocate dma buffer\n", __func__); 194013483730SMike Christie goto exit_session_conn_fwddb_param; 194113483730SMike Christie } 194213483730SMike Christie 194313483730SMike Christie if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 194413483730SMike Christie fw_ddb_entry_dma, NULL, NULL, &ddb_state, 194513483730SMike Christie NULL, NULL, NULL) == QLA_ERROR) { 194613483730SMike Christie DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 194713483730SMike Christie "get_ddb_entry for fw_ddb_index %d\n", 194813483730SMike Christie ha->host_no, __func__, 194913483730SMike Christie ddb_entry->fw_ddb_index)); 195013483730SMike Christie goto exit_session_conn_fwddb_param; 195113483730SMike Christie } 195213483730SMike Christie 195313483730SMike Christie cls_sess = ddb_entry->sess; 195413483730SMike Christie 195513483730SMike Christie cls_conn = ddb_entry->conn; 195613483730SMike Christie 195713483730SMike Christie /* Update params */ 195813483730SMike Christie qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 195913483730SMike Christie 196013483730SMike Christie exit_session_conn_fwddb_param: 196113483730SMike Christie if (fw_ddb_entry) 196213483730SMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 196313483730SMike Christie fw_ddb_entry, fw_ddb_entry_dma); 196413483730SMike Christie } 196513483730SMike Christie 1966b3a271a9SManish Rangankar void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 1967b3a271a9SManish Rangankar struct ddb_entry *ddb_entry) 1968b3a271a9SManish Rangankar { 1969b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 1970b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1971b3a271a9SManish Rangankar struct iscsi_session *sess; 1972b3a271a9SManish Rangankar struct iscsi_conn *conn; 1973b3a271a9SManish Rangankar uint32_t ddb_state; 1974b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1975b3a271a9SManish Rangankar struct dev_db_entry *fw_ddb_entry; 1976b3a271a9SManish Rangankar 1977b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1978b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1979b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1980b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1981b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 198213483730SMike Christie goto exit_session_conn_param; 1983b3a271a9SManish Rangankar } 1984b3a271a9SManish Rangankar 1985b3a271a9SManish Rangankar if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 1986b3a271a9SManish Rangankar fw_ddb_entry_dma, NULL, NULL, &ddb_state, 1987b3a271a9SManish Rangankar NULL, NULL, NULL) == QLA_ERROR) { 1988b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 1989b3a271a9SManish Rangankar "get_ddb_entry for fw_ddb_index %d\n", 1990b3a271a9SManish Rangankar ha->host_no, __func__, 1991b3a271a9SManish Rangankar ddb_entry->fw_ddb_index)); 199213483730SMike Christie goto exit_session_conn_param; 1993b3a271a9SManish Rangankar } 1994b3a271a9SManish Rangankar 1995b3a271a9SManish Rangankar cls_sess = ddb_entry->sess; 1996b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1997b3a271a9SManish Rangankar 1998b3a271a9SManish Rangankar cls_conn = ddb_entry->conn; 1999b3a271a9SManish Rangankar conn = cls_conn->dd_data; 2000b3a271a9SManish Rangankar 200113483730SMike Christie /* Update timers after login */ 200213483730SMike Christie ddb_entry->default_relogin_timeout = 2003c28eaacaSNilesh Javali (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 2004c28eaacaSNilesh Javali (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 2005c28eaacaSNilesh Javali le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 200613483730SMike Christie ddb_entry->default_time2wait = 200713483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 200813483730SMike Christie 2009b3a271a9SManish Rangankar /* Update params */ 2010376738afSNilesh Javali ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 2011b3a271a9SManish Rangankar conn->max_recv_dlength = BYTE_UNITS * 2012b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 2013b3a271a9SManish Rangankar 2014b3a271a9SManish Rangankar conn->max_xmit_dlength = BYTE_UNITS * 2015b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 2016b3a271a9SManish Rangankar 2017b3a271a9SManish Rangankar sess->initial_r2t_en = 2018b3a271a9SManish Rangankar (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 2019b3a271a9SManish Rangankar 2020b3a271a9SManish Rangankar sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 2021b3a271a9SManish Rangankar 2022b3a271a9SManish Rangankar sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 2023b3a271a9SManish Rangankar 2024b3a271a9SManish Rangankar sess->first_burst = BYTE_UNITS * 2025b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 2026b3a271a9SManish Rangankar 2027b3a271a9SManish Rangankar sess->max_burst = BYTE_UNITS * 2028b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 2029b3a271a9SManish Rangankar 2030b3a271a9SManish Rangankar sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 2031b3a271a9SManish Rangankar 2032b3a271a9SManish Rangankar sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 2033b3a271a9SManish Rangankar 2034b3a271a9SManish Rangankar sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 2035b3a271a9SManish Rangankar 2036b3a271a9SManish Rangankar memcpy(sess->initiatorname, ha->name_string, 2037b3a271a9SManish Rangankar min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 203813483730SMike Christie 20396c1b8789SVikas Chaudhary iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS, 20406c1b8789SVikas Chaudhary (char *)fw_ddb_entry->iscsi_alias, 0); 20416c1b8789SVikas Chaudhary 204213483730SMike Christie exit_session_conn_param: 204313483730SMike Christie if (fw_ddb_entry) 204413483730SMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 204513483730SMike Christie fw_ddb_entry, fw_ddb_entry_dma); 2046b3a271a9SManish Rangankar } 2047b3a271a9SManish Rangankar 2048afaf5a2dSDavid Somayajulu /* 2049afaf5a2dSDavid Somayajulu * Timer routines 2050afaf5a2dSDavid Somayajulu */ 2051afaf5a2dSDavid Somayajulu 2052afaf5a2dSDavid Somayajulu static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 2053afaf5a2dSDavid Somayajulu unsigned long interval) 2054afaf5a2dSDavid Somayajulu { 2055afaf5a2dSDavid Somayajulu DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 2056afaf5a2dSDavid Somayajulu __func__, ha->host->host_no)); 2057afaf5a2dSDavid Somayajulu init_timer(&ha->timer); 2058afaf5a2dSDavid Somayajulu ha->timer.expires = jiffies + interval * HZ; 2059afaf5a2dSDavid Somayajulu ha->timer.data = (unsigned long)ha; 2060afaf5a2dSDavid Somayajulu ha->timer.function = (void (*)(unsigned long))func; 2061afaf5a2dSDavid Somayajulu add_timer(&ha->timer); 2062afaf5a2dSDavid Somayajulu ha->timer_active = 1; 2063afaf5a2dSDavid Somayajulu } 2064afaf5a2dSDavid Somayajulu 2065afaf5a2dSDavid Somayajulu static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 2066afaf5a2dSDavid Somayajulu { 2067afaf5a2dSDavid Somayajulu del_timer_sync(&ha->timer); 2068afaf5a2dSDavid Somayajulu ha->timer_active = 0; 2069afaf5a2dSDavid Somayajulu } 2070afaf5a2dSDavid Somayajulu 2071afaf5a2dSDavid Somayajulu /*** 2072b3a271a9SManish Rangankar * qla4xxx_mark_device_missing - blocks the session 2073b3a271a9SManish Rangankar * @cls_session: Pointer to the session to be blocked 2074afaf5a2dSDavid Somayajulu * @ddb_entry: Pointer to device database entry 2075afaf5a2dSDavid Somayajulu * 2076f4f5df23SVikas Chaudhary * This routine marks a device missing and close connection. 2077afaf5a2dSDavid Somayajulu **/ 2078b3a271a9SManish Rangankar void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 2079afaf5a2dSDavid Somayajulu { 2080b3a271a9SManish Rangankar iscsi_block_session(cls_session); 2081afaf5a2dSDavid Somayajulu } 2082afaf5a2dSDavid Somayajulu 2083f4f5df23SVikas Chaudhary /** 2084f4f5df23SVikas Chaudhary * qla4xxx_mark_all_devices_missing - mark all devices as missing. 2085f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 2086f4f5df23SVikas Chaudhary * 2087f4f5df23SVikas Chaudhary * This routine marks a device missing and resets the relogin retry count. 2088f4f5df23SVikas Chaudhary **/ 2089f4f5df23SVikas Chaudhary void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 2090f4f5df23SVikas Chaudhary { 2091b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 2092f4f5df23SVikas Chaudhary } 2093f4f5df23SVikas Chaudhary 2094afaf5a2dSDavid Somayajulu static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 2095afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, 20968f0722caSVikas Chaudhary struct scsi_cmnd *cmd) 2097afaf5a2dSDavid Somayajulu { 2098afaf5a2dSDavid Somayajulu struct srb *srb; 2099afaf5a2dSDavid Somayajulu 2100afaf5a2dSDavid Somayajulu srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 2101afaf5a2dSDavid Somayajulu if (!srb) 2102afaf5a2dSDavid Somayajulu return srb; 2103afaf5a2dSDavid Somayajulu 210409a0f719SVikas Chaudhary kref_init(&srb->srb_ref); 2105afaf5a2dSDavid Somayajulu srb->ha = ha; 2106afaf5a2dSDavid Somayajulu srb->ddb = ddb_entry; 2107afaf5a2dSDavid Somayajulu srb->cmd = cmd; 2108afaf5a2dSDavid Somayajulu srb->flags = 0; 21095369887aSVikas Chaudhary CMD_SP(cmd) = (void *)srb; 2110afaf5a2dSDavid Somayajulu 2111afaf5a2dSDavid Somayajulu return srb; 2112afaf5a2dSDavid Somayajulu } 2113afaf5a2dSDavid Somayajulu 2114afaf5a2dSDavid Somayajulu static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 2115afaf5a2dSDavid Somayajulu { 2116afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 2117afaf5a2dSDavid Somayajulu 2118afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 21195f7186c8SFUJITA Tomonori scsi_dma_unmap(cmd); 2120afaf5a2dSDavid Somayajulu srb->flags &= ~SRB_DMA_VALID; 2121afaf5a2dSDavid Somayajulu } 21225369887aSVikas Chaudhary CMD_SP(cmd) = NULL; 2123afaf5a2dSDavid Somayajulu } 2124afaf5a2dSDavid Somayajulu 212509a0f719SVikas Chaudhary void qla4xxx_srb_compl(struct kref *ref) 2126afaf5a2dSDavid Somayajulu { 212709a0f719SVikas Chaudhary struct srb *srb = container_of(ref, struct srb, srb_ref); 2128afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 212909a0f719SVikas Chaudhary struct scsi_qla_host *ha = srb->ha; 2130afaf5a2dSDavid Somayajulu 2131afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 2132afaf5a2dSDavid Somayajulu 2133afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 2134afaf5a2dSDavid Somayajulu 2135afaf5a2dSDavid Somayajulu cmd->scsi_done(cmd); 2136afaf5a2dSDavid Somayajulu } 2137afaf5a2dSDavid Somayajulu 2138afaf5a2dSDavid Somayajulu /** 2139afaf5a2dSDavid Somayajulu * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 21408f0722caSVikas Chaudhary * @host: scsi host 2141afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 2142afaf5a2dSDavid Somayajulu * 2143afaf5a2dSDavid Somayajulu * Remarks: 2144afaf5a2dSDavid Somayajulu * This routine is invoked by Linux to send a SCSI command to the driver. 2145afaf5a2dSDavid Somayajulu * The mid-level driver tries to ensure that queuecommand never gets 2146afaf5a2dSDavid Somayajulu * invoked concurrently with itself or the interrupt handler (although 2147afaf5a2dSDavid Somayajulu * the interrupt handler may call this routine as part of request- 2148afaf5a2dSDavid Somayajulu * completion handling). Unfortunely, it sometimes calls the scheduler 2149afaf5a2dSDavid Somayajulu * in interrupt context which is a big NO! NO!. 2150afaf5a2dSDavid Somayajulu **/ 21518f0722caSVikas Chaudhary static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 2152afaf5a2dSDavid Somayajulu { 21538f0722caSVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(host); 2154afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 21557fb1921bSMike Christie struct iscsi_cls_session *sess = ddb_entry->sess; 2156afaf5a2dSDavid Somayajulu struct srb *srb; 2157afaf5a2dSDavid Somayajulu int rval; 2158afaf5a2dSDavid Somayajulu 21592232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 21602232be0dSLalit Chandivade if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 21612232be0dSLalit Chandivade cmd->result = DID_NO_CONNECT << 16; 21622232be0dSLalit Chandivade else 21632232be0dSLalit Chandivade cmd->result = DID_REQUEUE << 16; 21642232be0dSLalit Chandivade goto qc_fail_command; 21652232be0dSLalit Chandivade } 21662232be0dSLalit Chandivade 21677fb1921bSMike Christie if (!sess) { 21687fb1921bSMike Christie cmd->result = DID_IMM_RETRY << 16; 21697fb1921bSMike Christie goto qc_fail_command; 21707fb1921bSMike Christie } 21717fb1921bSMike Christie 21727fb1921bSMike Christie rval = iscsi_session_chkready(sess); 21737fb1921bSMike Christie if (rval) { 21747fb1921bSMike Christie cmd->result = rval; 21757fb1921bSMike Christie goto qc_fail_command; 21767fb1921bSMike Christie } 21777fb1921bSMike Christie 2178f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2179f4f5df23SVikas Chaudhary test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2180f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2181f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 2182f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 2183f4f5df23SVikas Chaudhary !test_bit(AF_ONLINE, &ha->flags) || 2184b3a271a9SManish Rangankar !test_bit(AF_LINK_UP, &ha->flags) || 2185f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 2186477ffb9dSDavid C Somayajulu goto qc_host_busy; 2187477ffb9dSDavid C Somayajulu 21888f0722caSVikas Chaudhary srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 2189afaf5a2dSDavid Somayajulu if (!srb) 21908f0722caSVikas Chaudhary goto qc_host_busy; 2191afaf5a2dSDavid Somayajulu 2192afaf5a2dSDavid Somayajulu rval = qla4xxx_send_command_to_isp(ha, srb); 2193afaf5a2dSDavid Somayajulu if (rval != QLA_SUCCESS) 2194afaf5a2dSDavid Somayajulu goto qc_host_busy_free_sp; 2195afaf5a2dSDavid Somayajulu 2196afaf5a2dSDavid Somayajulu return 0; 2197afaf5a2dSDavid Somayajulu 2198afaf5a2dSDavid Somayajulu qc_host_busy_free_sp: 2199afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 2200afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 2201afaf5a2dSDavid Somayajulu 2202afaf5a2dSDavid Somayajulu qc_host_busy: 2203afaf5a2dSDavid Somayajulu return SCSI_MLQUEUE_HOST_BUSY; 2204afaf5a2dSDavid Somayajulu 2205afaf5a2dSDavid Somayajulu qc_fail_command: 22068f0722caSVikas Chaudhary cmd->scsi_done(cmd); 2207afaf5a2dSDavid Somayajulu 2208afaf5a2dSDavid Somayajulu return 0; 2209afaf5a2dSDavid Somayajulu } 2210afaf5a2dSDavid Somayajulu 2211afaf5a2dSDavid Somayajulu /** 2212afaf5a2dSDavid Somayajulu * qla4xxx_mem_free - frees memory allocated to adapter 2213afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2214afaf5a2dSDavid Somayajulu * 2215afaf5a2dSDavid Somayajulu * Frees memory previously allocated by qla4xxx_mem_alloc 2216afaf5a2dSDavid Somayajulu **/ 2217afaf5a2dSDavid Somayajulu static void qla4xxx_mem_free(struct scsi_qla_host *ha) 2218afaf5a2dSDavid Somayajulu { 2219afaf5a2dSDavid Somayajulu if (ha->queues) 2220afaf5a2dSDavid Somayajulu dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 2221afaf5a2dSDavid Somayajulu ha->queues_dma); 2222afaf5a2dSDavid Somayajulu 2223afaf5a2dSDavid Somayajulu ha->queues_len = 0; 2224afaf5a2dSDavid Somayajulu ha->queues = NULL; 2225afaf5a2dSDavid Somayajulu ha->queues_dma = 0; 2226afaf5a2dSDavid Somayajulu ha->request_ring = NULL; 2227afaf5a2dSDavid Somayajulu ha->request_dma = 0; 2228afaf5a2dSDavid Somayajulu ha->response_ring = NULL; 2229afaf5a2dSDavid Somayajulu ha->response_dma = 0; 2230afaf5a2dSDavid Somayajulu ha->shadow_regs = NULL; 2231afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = 0; 2232afaf5a2dSDavid Somayajulu 2233afaf5a2dSDavid Somayajulu /* Free srb pool. */ 2234afaf5a2dSDavid Somayajulu if (ha->srb_mempool) 2235afaf5a2dSDavid Somayajulu mempool_destroy(ha->srb_mempool); 2236afaf5a2dSDavid Somayajulu 2237afaf5a2dSDavid Somayajulu ha->srb_mempool = NULL; 2238afaf5a2dSDavid Somayajulu 2239b3a271a9SManish Rangankar if (ha->chap_dma_pool) 2240b3a271a9SManish Rangankar dma_pool_destroy(ha->chap_dma_pool); 2241b3a271a9SManish Rangankar 22424549415aSLalit Chandivade if (ha->chap_list) 22434549415aSLalit Chandivade vfree(ha->chap_list); 22444549415aSLalit Chandivade ha->chap_list = NULL; 22454549415aSLalit Chandivade 224613483730SMike Christie if (ha->fw_ddb_dma_pool) 224713483730SMike Christie dma_pool_destroy(ha->fw_ddb_dma_pool); 224813483730SMike Christie 2249afaf5a2dSDavid Somayajulu /* release io space registers */ 2250f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2251f4f5df23SVikas Chaudhary if (ha->nx_pcibase) 2252f4f5df23SVikas Chaudhary iounmap( 2253f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)ha->nx_pcibase); 2254f4f5df23SVikas Chaudhary } else if (ha->reg) 2255afaf5a2dSDavid Somayajulu iounmap(ha->reg); 2256afaf5a2dSDavid Somayajulu pci_release_regions(ha->pdev); 2257afaf5a2dSDavid Somayajulu } 2258afaf5a2dSDavid Somayajulu 2259afaf5a2dSDavid Somayajulu /** 2260afaf5a2dSDavid Somayajulu * qla4xxx_mem_alloc - allocates memory for use by adapter. 2261afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 2262afaf5a2dSDavid Somayajulu * 2263afaf5a2dSDavid Somayajulu * Allocates DMA memory for request and response queues. Also allocates memory 2264afaf5a2dSDavid Somayajulu * for srbs. 2265afaf5a2dSDavid Somayajulu **/ 2266afaf5a2dSDavid Somayajulu static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 2267afaf5a2dSDavid Somayajulu { 2268afaf5a2dSDavid Somayajulu unsigned long align; 2269afaf5a2dSDavid Somayajulu 2270afaf5a2dSDavid Somayajulu /* Allocate contiguous block of DMA memory for queues. */ 2271afaf5a2dSDavid Somayajulu ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 2272afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 2273afaf5a2dSDavid Somayajulu sizeof(struct shadow_regs) + 2274afaf5a2dSDavid Somayajulu MEM_ALIGN_VALUE + 2275afaf5a2dSDavid Somayajulu (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 2276afaf5a2dSDavid Somayajulu ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 2277afaf5a2dSDavid Somayajulu &ha->queues_dma, GFP_KERNEL); 2278afaf5a2dSDavid Somayajulu if (ha->queues == NULL) { 2279c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2280afaf5a2dSDavid Somayajulu "Memory Allocation failed - queues.\n"); 2281afaf5a2dSDavid Somayajulu 2282afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 2283afaf5a2dSDavid Somayajulu } 2284afaf5a2dSDavid Somayajulu memset(ha->queues, 0, ha->queues_len); 2285afaf5a2dSDavid Somayajulu 2286afaf5a2dSDavid Somayajulu /* 2287afaf5a2dSDavid Somayajulu * As per RISC alignment requirements -- the bus-address must be a 2288afaf5a2dSDavid Somayajulu * multiple of the request-ring size (in bytes). 2289afaf5a2dSDavid Somayajulu */ 2290afaf5a2dSDavid Somayajulu align = 0; 2291afaf5a2dSDavid Somayajulu if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 2292afaf5a2dSDavid Somayajulu align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 2293afaf5a2dSDavid Somayajulu (MEM_ALIGN_VALUE - 1)); 2294afaf5a2dSDavid Somayajulu 2295afaf5a2dSDavid Somayajulu /* Update request and response queue pointers. */ 2296afaf5a2dSDavid Somayajulu ha->request_dma = ha->queues_dma + align; 2297afaf5a2dSDavid Somayajulu ha->request_ring = (struct queue_entry *) (ha->queues + align); 2298afaf5a2dSDavid Somayajulu ha->response_dma = ha->queues_dma + align + 2299afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 2300afaf5a2dSDavid Somayajulu ha->response_ring = (struct queue_entry *) (ha->queues + align + 2301afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 2302afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 2303afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = ha->queues_dma + align + 2304afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 2305afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 2306afaf5a2dSDavid Somayajulu ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 2307afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 2308afaf5a2dSDavid Somayajulu QUEUE_SIZE) + 2309afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * 2310afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 2311afaf5a2dSDavid Somayajulu 2312afaf5a2dSDavid Somayajulu /* Allocate memory for srb pool. */ 2313afaf5a2dSDavid Somayajulu ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 2314afaf5a2dSDavid Somayajulu mempool_free_slab, srb_cachep); 2315afaf5a2dSDavid Somayajulu if (ha->srb_mempool == NULL) { 2316c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2317afaf5a2dSDavid Somayajulu "Memory Allocation failed - SRB Pool.\n"); 2318afaf5a2dSDavid Somayajulu 2319afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 2320afaf5a2dSDavid Somayajulu } 2321afaf5a2dSDavid Somayajulu 2322b3a271a9SManish Rangankar ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 2323b3a271a9SManish Rangankar CHAP_DMA_BLOCK_SIZE, 8, 0); 2324b3a271a9SManish Rangankar 2325b3a271a9SManish Rangankar if (ha->chap_dma_pool == NULL) { 2326b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 2327b3a271a9SManish Rangankar "%s: chap_dma_pool allocation failed..\n", __func__); 2328b3a271a9SManish Rangankar goto mem_alloc_error_exit; 2329b3a271a9SManish Rangankar } 2330b3a271a9SManish Rangankar 233113483730SMike Christie ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 233213483730SMike Christie DDB_DMA_BLOCK_SIZE, 8, 0); 233313483730SMike Christie 233413483730SMike Christie if (ha->fw_ddb_dma_pool == NULL) { 233513483730SMike Christie ql4_printk(KERN_WARNING, ha, 233613483730SMike Christie "%s: fw_ddb_dma_pool allocation failed..\n", 233713483730SMike Christie __func__); 233813483730SMike Christie goto mem_alloc_error_exit; 233913483730SMike Christie } 234013483730SMike Christie 2341afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 2342afaf5a2dSDavid Somayajulu 2343afaf5a2dSDavid Somayajulu mem_alloc_error_exit: 2344afaf5a2dSDavid Somayajulu qla4xxx_mem_free(ha); 2345afaf5a2dSDavid Somayajulu return QLA_ERROR; 2346afaf5a2dSDavid Somayajulu } 2347afaf5a2dSDavid Somayajulu 2348afaf5a2dSDavid Somayajulu /** 23494f77083eSMike Hernandez * qla4_8xxx_check_temp - Check the ISP82XX temperature. 23504f77083eSMike Hernandez * @ha: adapter block pointer. 23514f77083eSMike Hernandez * 23524f77083eSMike Hernandez * Note: The caller should not hold the idc lock. 23534f77083eSMike Hernandez **/ 23544f77083eSMike Hernandez static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 23554f77083eSMike Hernandez { 23564f77083eSMike Hernandez uint32_t temp, temp_state, temp_val; 23574f77083eSMike Hernandez int status = QLA_SUCCESS; 23584f77083eSMike Hernandez 23594f77083eSMike Hernandez temp = qla4_8xxx_rd_32(ha, CRB_TEMP_STATE); 23604f77083eSMike Hernandez 23614f77083eSMike Hernandez temp_state = qla82xx_get_temp_state(temp); 23624f77083eSMike Hernandez temp_val = qla82xx_get_temp_val(temp); 23634f77083eSMike Hernandez 23644f77083eSMike Hernandez if (temp_state == QLA82XX_TEMP_PANIC) { 23654f77083eSMike Hernandez ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 23664f77083eSMike Hernandez " exceeds maximum allowed. Hardware has been shut" 23674f77083eSMike Hernandez " down.\n", temp_val); 23684f77083eSMike Hernandez status = QLA_ERROR; 23694f77083eSMike Hernandez } else if (temp_state == QLA82XX_TEMP_WARN) { 23704f77083eSMike Hernandez if (ha->temperature == QLA82XX_TEMP_NORMAL) 23714f77083eSMike Hernandez ql4_printk(KERN_WARNING, ha, "Device temperature %d" 23724f77083eSMike Hernandez " degrees C exceeds operating range." 23734f77083eSMike Hernandez " Immediate action needed.\n", temp_val); 23744f77083eSMike Hernandez } else { 23754f77083eSMike Hernandez if (ha->temperature == QLA82XX_TEMP_WARN) 23764f77083eSMike Hernandez ql4_printk(KERN_INFO, ha, "Device temperature is" 23774f77083eSMike Hernandez " now %d degrees C in normal range.\n", 23784f77083eSMike Hernandez temp_val); 23794f77083eSMike Hernandez } 23804f77083eSMike Hernandez ha->temperature = temp_state; 23814f77083eSMike Hernandez return status; 23824f77083eSMike Hernandez } 23834f77083eSMike Hernandez 23844f77083eSMike Hernandez /** 2385f4f5df23SVikas Chaudhary * qla4_8xxx_check_fw_alive - Check firmware health 2386f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 2387f4f5df23SVikas Chaudhary * 2388f4f5df23SVikas Chaudhary * Context: Interrupt 2389f4f5df23SVikas Chaudhary **/ 23909ee91a38SShyam Sunder static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 2391f4f5df23SVikas Chaudhary { 23929ee91a38SShyam Sunder uint32_t fw_heartbeat_counter; 23939ee91a38SShyam Sunder int status = QLA_SUCCESS; 2394f4f5df23SVikas Chaudhary 2395f4f5df23SVikas Chaudhary fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 23962232be0dSLalit Chandivade /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 23972232be0dSLalit Chandivade if (fw_heartbeat_counter == 0xffffffff) { 23982232be0dSLalit Chandivade DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 23992232be0dSLalit Chandivade "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 24002232be0dSLalit Chandivade ha->host_no, __func__)); 24019ee91a38SShyam Sunder return status; 24022232be0dSLalit Chandivade } 2403f4f5df23SVikas Chaudhary 2404f4f5df23SVikas Chaudhary if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 2405f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat++; 2406f4f5df23SVikas Chaudhary /* FW not alive after 2 seconds */ 2407f4f5df23SVikas Chaudhary if (ha->seconds_since_last_heartbeat == 2) { 2408f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat = 0; 240968d92ebfSVikas Chaudhary 241068d92ebfSVikas Chaudhary ql4_printk(KERN_INFO, ha, 241168d92ebfSVikas Chaudhary "scsi(%ld): %s, Dumping hw/fw registers:\n " 241268d92ebfSVikas Chaudhary " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:" 241368d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:" 241468d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:" 241568d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_4_PC: 0x%x\n", 24169ee91a38SShyam Sunder ha->host_no, __func__, 24179ee91a38SShyam Sunder qla4_8xxx_rd_32(ha, 24189ee91a38SShyam Sunder QLA82XX_PEG_HALT_STATUS1), 241968d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, 242068d92ebfSVikas Chaudhary QLA82XX_PEG_HALT_STATUS2), 242168d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 242268d92ebfSVikas Chaudhary 0x3c), 242368d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 242468d92ebfSVikas Chaudhary 0x3c), 242568d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 242668d92ebfSVikas Chaudhary 0x3c), 242768d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 242868d92ebfSVikas Chaudhary 0x3c), 242968d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 243068d92ebfSVikas Chaudhary 0x3c)); 24319ee91a38SShyam Sunder status = QLA_ERROR; 2432f4f5df23SVikas Chaudhary } 243399457d75SLalit Chandivade } else 243499457d75SLalit Chandivade ha->seconds_since_last_heartbeat = 0; 243599457d75SLalit Chandivade 2436f4f5df23SVikas Chaudhary ha->fw_heartbeat_counter = fw_heartbeat_counter; 24379ee91a38SShyam Sunder return status; 2438f4f5df23SVikas Chaudhary } 2439f4f5df23SVikas Chaudhary 2440f4f5df23SVikas Chaudhary /** 2441f4f5df23SVikas Chaudhary * qla4_8xxx_watchdog - Poll dev state 2442f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 2443f4f5df23SVikas Chaudhary * 2444f4f5df23SVikas Chaudhary * Context: Interrupt 2445f4f5df23SVikas Chaudhary **/ 2446f4f5df23SVikas Chaudhary void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 2447f4f5df23SVikas Chaudhary { 24489ee91a38SShyam Sunder uint32_t dev_state, halt_status; 2449f4f5df23SVikas Chaudhary 2450f4f5df23SVikas Chaudhary /* don't poll if reset is going on */ 2451d56a1f7bSLalit Chandivade if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2452d56a1f7bSLalit Chandivade test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2453977f46a4SVikas Chaudhary test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 24549ee91a38SShyam Sunder dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 24554f77083eSMike Hernandez 24564f77083eSMike Hernandez if (qla4_8xxx_check_temp(ha)) { 2457e6bd0ebdSGiridhar Malavali ql4_printk(KERN_INFO, ha, "disabling pause" 2458e6bd0ebdSGiridhar Malavali " transmit on port 0 & 1.\n"); 2459e6bd0ebdSGiridhar Malavali qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2460e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P0 | 2461e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P1); 24624f77083eSMike Hernandez set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 24634f77083eSMike Hernandez qla4xxx_wake_dpc(ha); 24644f77083eSMike Hernandez } else if (dev_state == QLA82XX_DEV_NEED_RESET && 2465f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 24663930b8c1SVikas Chaudhary if (!ql4xdontresethba) { 24673930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: " 24683930b8c1SVikas Chaudhary "NEED RESET!\n", __func__); 2469f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2470f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 24713930b8c1SVikas Chaudhary } 2472f4f5df23SVikas Chaudhary } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT && 2473f4f5df23SVikas Chaudhary !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 24743930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 24753930b8c1SVikas Chaudhary __func__); 2476f4f5df23SVikas Chaudhary set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 2477f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 2478f4f5df23SVikas Chaudhary } else { 2479f4f5df23SVikas Chaudhary /* Check firmware health */ 24809ee91a38SShyam Sunder if (qla4_8xxx_check_fw_alive(ha)) { 2481e6bd0ebdSGiridhar Malavali ql4_printk(KERN_INFO, ha, "disabling pause" 2482e6bd0ebdSGiridhar Malavali " transmit on port 0 & 1.\n"); 2483e6bd0ebdSGiridhar Malavali qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2484e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P0 | 2485e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P1); 24869ee91a38SShyam Sunder halt_status = qla4_8xxx_rd_32(ha, 24879ee91a38SShyam Sunder QLA82XX_PEG_HALT_STATUS1); 24889ee91a38SShyam Sunder 248946801ba6SVikas Chaudhary if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 2490527c8b2eSNilesh Javali ql4_printk(KERN_ERR, ha, "%s:" 2491527c8b2eSNilesh Javali " Firmware aborted with" 2492527c8b2eSNilesh Javali " error code 0x00006700." 2493527c8b2eSNilesh Javali " Device is being reset\n", 2494527c8b2eSNilesh Javali __func__); 2495527c8b2eSNilesh Javali 24969ee91a38SShyam Sunder /* Since we cannot change dev_state in interrupt 24979ee91a38SShyam Sunder * context, set appropriate DPC flag then wakeup 24989ee91a38SShyam Sunder * DPC */ 24999ee91a38SShyam Sunder if (halt_status & HALT_STATUS_UNRECOVERABLE) 25009ee91a38SShyam Sunder set_bit(DPC_HA_UNRECOVERABLE, 25019ee91a38SShyam Sunder &ha->dpc_flags); 25029ee91a38SShyam Sunder else { 25039ee91a38SShyam Sunder ql4_printk(KERN_INFO, ha, "%s: detect " 25049ee91a38SShyam Sunder "abort needed!\n", __func__); 25059ee91a38SShyam Sunder set_bit(DPC_RESET_HA, &ha->dpc_flags); 25069ee91a38SShyam Sunder } 25079ee91a38SShyam Sunder qla4xxx_mailbox_premature_completion(ha); 25089ee91a38SShyam Sunder qla4xxx_wake_dpc(ha); 25099ee91a38SShyam Sunder } 2510f4f5df23SVikas Chaudhary } 2511f4f5df23SVikas Chaudhary } 2512f4f5df23SVikas Chaudhary } 2513f4f5df23SVikas Chaudhary 25144a4bc2e9SLalit Chandivade static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 251513483730SMike Christie { 251613483730SMike Christie struct iscsi_session *sess; 251713483730SMike Christie struct ddb_entry *ddb_entry; 251813483730SMike Christie struct scsi_qla_host *ha; 251913483730SMike Christie 252013483730SMike Christie sess = cls_sess->dd_data; 252113483730SMike Christie ddb_entry = sess->dd_data; 252213483730SMike Christie ha = ddb_entry->ha; 252313483730SMike Christie 252413483730SMike Christie if (!(ddb_entry->ddb_type == FLASH_DDB)) 252513483730SMike Christie return; 252613483730SMike Christie 252713483730SMike Christie if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 252813483730SMike Christie !iscsi_is_session_online(cls_sess)) { 252913483730SMike Christie if (atomic_read(&ddb_entry->retry_relogin_timer) != 253013483730SMike Christie INVALID_ENTRY) { 253113483730SMike Christie if (atomic_read(&ddb_entry->retry_relogin_timer) == 253213483730SMike Christie 0) { 253313483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, 253413483730SMike Christie INVALID_ENTRY); 253513483730SMike Christie set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 253613483730SMike Christie set_bit(DF_RELOGIN, &ddb_entry->flags); 253713483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 253813483730SMike Christie "%s: index [%d] login device\n", 253913483730SMike Christie __func__, ddb_entry->fw_ddb_index)); 254013483730SMike Christie } else 254113483730SMike Christie atomic_dec(&ddb_entry->retry_relogin_timer); 254213483730SMike Christie } 254313483730SMike Christie } 254413483730SMike Christie 254513483730SMike Christie /* Wait for relogin to timeout */ 254613483730SMike Christie if (atomic_read(&ddb_entry->relogin_timer) && 254713483730SMike Christie (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 254813483730SMike Christie /* 254913483730SMike Christie * If the relogin times out and the device is 255013483730SMike Christie * still NOT ONLINE then try and relogin again. 255113483730SMike Christie */ 255213483730SMike Christie if (!iscsi_is_session_online(cls_sess)) { 255313483730SMike Christie /* Reset retry relogin timer */ 255413483730SMike Christie atomic_inc(&ddb_entry->relogin_retry_count); 255513483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 255613483730SMike Christie "%s: index[%d] relogin timed out-retrying" 255713483730SMike Christie " relogin (%d), retry (%d)\n", __func__, 255813483730SMike Christie ddb_entry->fw_ddb_index, 255913483730SMike Christie atomic_read(&ddb_entry->relogin_retry_count), 256013483730SMike Christie ddb_entry->default_time2wait + 4)); 256113483730SMike Christie set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 256213483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, 256313483730SMike Christie ddb_entry->default_time2wait + 4); 256413483730SMike Christie } 256513483730SMike Christie } 256613483730SMike Christie } 256713483730SMike Christie 2568f4f5df23SVikas Chaudhary /** 2569afaf5a2dSDavid Somayajulu * qla4xxx_timer - checks every second for work to do. 2570afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2571afaf5a2dSDavid Somayajulu **/ 2572afaf5a2dSDavid Somayajulu static void qla4xxx_timer(struct scsi_qla_host *ha) 2573afaf5a2dSDavid Somayajulu { 2574afaf5a2dSDavid Somayajulu int start_dpc = 0; 25752232be0dSLalit Chandivade uint16_t w; 25762232be0dSLalit Chandivade 257713483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 257813483730SMike Christie 25792232be0dSLalit Chandivade /* If we are in the middle of AER/EEH processing 25802232be0dSLalit Chandivade * skip any processing and reschedule the timer 25812232be0dSLalit Chandivade */ 25822232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 25832232be0dSLalit Chandivade mod_timer(&ha->timer, jiffies + HZ); 25842232be0dSLalit Chandivade return; 25852232be0dSLalit Chandivade } 25862232be0dSLalit Chandivade 25872232be0dSLalit Chandivade /* Hardware read to trigger an EEH error during mailbox waits. */ 25882232be0dSLalit Chandivade if (!pci_channel_offline(ha->pdev)) 25892232be0dSLalit Chandivade pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 2590afaf5a2dSDavid Somayajulu 2591f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2592f4f5df23SVikas Chaudhary qla4_8xxx_watchdog(ha); 2593f4f5df23SVikas Chaudhary } 2594f4f5df23SVikas Chaudhary 2595f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 2596afaf5a2dSDavid Somayajulu /* Check for heartbeat interval. */ 2597afaf5a2dSDavid Somayajulu if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 2598afaf5a2dSDavid Somayajulu ha->heartbeat_interval != 0) { 2599afaf5a2dSDavid Somayajulu ha->seconds_since_last_heartbeat++; 2600afaf5a2dSDavid Somayajulu if (ha->seconds_since_last_heartbeat > 2601afaf5a2dSDavid Somayajulu ha->heartbeat_interval + 2) 2602afaf5a2dSDavid Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 2603afaf5a2dSDavid Somayajulu } 2604f4f5df23SVikas Chaudhary } 2605afaf5a2dSDavid Somayajulu 2606ff884430SVikas Chaudhary /* Process any deferred work. */ 2607ff884430SVikas Chaudhary if (!list_empty(&ha->work_list)) 2608ff884430SVikas Chaudhary start_dpc++; 2609ff884430SVikas Chaudhary 2610afaf5a2dSDavid Somayajulu /* Wakeup the dpc routine for this adapter, if needed. */ 26111b46807eSLalit Chandivade if (start_dpc || 2612afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2613afaf5a2dSDavid Somayajulu test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 2614afaf5a2dSDavid Somayajulu test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 2615f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2616afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2617afaf5a2dSDavid Somayajulu test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 2618065aa1b4SVikas Chaudhary test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 2619f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 2620f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 26211b46807eSLalit Chandivade test_bit(DPC_AEN, &ha->dpc_flags)) { 2622afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 2623afaf5a2dSDavid Somayajulu " - dpc flags = 0x%lx\n", 2624afaf5a2dSDavid Somayajulu ha->host_no, __func__, ha->dpc_flags)); 2625f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 2626afaf5a2dSDavid Somayajulu } 2627afaf5a2dSDavid Somayajulu 2628afaf5a2dSDavid Somayajulu /* Reschedule timer thread to call us back in one second */ 2629afaf5a2dSDavid Somayajulu mod_timer(&ha->timer, jiffies + HZ); 2630afaf5a2dSDavid Somayajulu 2631afaf5a2dSDavid Somayajulu DEBUG2(ha->seconds_since_last_intr++); 2632afaf5a2dSDavid Somayajulu } 2633afaf5a2dSDavid Somayajulu 2634afaf5a2dSDavid Somayajulu /** 2635afaf5a2dSDavid Somayajulu * qla4xxx_cmd_wait - waits for all outstanding commands to complete 2636afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2637afaf5a2dSDavid Somayajulu * 2638afaf5a2dSDavid Somayajulu * This routine stalls the driver until all outstanding commands are returned. 2639afaf5a2dSDavid Somayajulu * Caller must release the Hardware Lock prior to calling this routine. 2640afaf5a2dSDavid Somayajulu **/ 2641afaf5a2dSDavid Somayajulu static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 2642afaf5a2dSDavid Somayajulu { 2643afaf5a2dSDavid Somayajulu uint32_t index = 0; 2644afaf5a2dSDavid Somayajulu unsigned long flags; 2645afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 2646afaf5a2dSDavid Somayajulu 2647f4f5df23SVikas Chaudhary unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 2648f4f5df23SVikas Chaudhary 2649f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 2650f4f5df23SVikas Chaudhary "complete\n", WAIT_CMD_TOV)); 2651f4f5df23SVikas Chaudhary 2652f4f5df23SVikas Chaudhary while (!time_after_eq(jiffies, wtime)) { 2653afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2654afaf5a2dSDavid Somayajulu /* Find a command that hasn't completed. */ 2655afaf5a2dSDavid Somayajulu for (index = 0; index < ha->host->can_queue; index++) { 2656afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, index); 2657a1e0063dSMike Christie /* 2658a1e0063dSMike Christie * We cannot just check if the index is valid, 2659a1e0063dSMike Christie * becase if we are run from the scsi eh, then 2660a1e0063dSMike Christie * the scsi/block layer is going to prevent 2661a1e0063dSMike Christie * the tag from being released. 2662a1e0063dSMike Christie */ 2663a1e0063dSMike Christie if (cmd != NULL && CMD_SP(cmd)) 2664afaf5a2dSDavid Somayajulu break; 2665afaf5a2dSDavid Somayajulu } 2666afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2667afaf5a2dSDavid Somayajulu 2668afaf5a2dSDavid Somayajulu /* If No Commands are pending, wait is complete */ 2669f4f5df23SVikas Chaudhary if (index == ha->host->can_queue) 2670f4f5df23SVikas Chaudhary return QLA_SUCCESS; 2671afaf5a2dSDavid Somayajulu 2672afaf5a2dSDavid Somayajulu msleep(1000); 2673afaf5a2dSDavid Somayajulu } 2674f4f5df23SVikas Chaudhary /* If we timed out on waiting for commands to come back 2675f4f5df23SVikas Chaudhary * return ERROR. */ 2676f4f5df23SVikas Chaudhary return QLA_ERROR; 2677afaf5a2dSDavid Somayajulu } 2678afaf5a2dSDavid Somayajulu 2679f4f5df23SVikas Chaudhary int qla4xxx_hw_reset(struct scsi_qla_host *ha) 2680afaf5a2dSDavid Somayajulu { 2681afaf5a2dSDavid Somayajulu uint32_t ctrl_status; 2682477ffb9dSDavid C Somayajulu unsigned long flags = 0; 2683477ffb9dSDavid C Somayajulu 2684477ffb9dSDavid C Somayajulu DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 2685afaf5a2dSDavid Somayajulu 2686f4f5df23SVikas Chaudhary if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 2687f4f5df23SVikas Chaudhary return QLA_ERROR; 2688f4f5df23SVikas Chaudhary 2689afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2690afaf5a2dSDavid Somayajulu 2691afaf5a2dSDavid Somayajulu /* 2692afaf5a2dSDavid Somayajulu * If the SCSI Reset Interrupt bit is set, clear it. 2693afaf5a2dSDavid Somayajulu * Otherwise, the Soft Reset won't work. 2694afaf5a2dSDavid Somayajulu */ 2695afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2696afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 2697afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2698afaf5a2dSDavid Somayajulu 2699afaf5a2dSDavid Somayajulu /* Issue Soft Reset */ 2700afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 2701afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2702afaf5a2dSDavid Somayajulu 2703afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2704f4f5df23SVikas Chaudhary return QLA_SUCCESS; 2705477ffb9dSDavid C Somayajulu } 2706477ffb9dSDavid C Somayajulu 2707477ffb9dSDavid C Somayajulu /** 2708477ffb9dSDavid C Somayajulu * qla4xxx_soft_reset - performs soft reset. 2709477ffb9dSDavid C Somayajulu * @ha: Pointer to host adapter structure. 2710477ffb9dSDavid C Somayajulu **/ 2711477ffb9dSDavid C Somayajulu int qla4xxx_soft_reset(struct scsi_qla_host *ha) 2712477ffb9dSDavid C Somayajulu { 2713477ffb9dSDavid C Somayajulu uint32_t max_wait_time; 2714477ffb9dSDavid C Somayajulu unsigned long flags = 0; 2715f931c534SVikas Chaudhary int status; 2716477ffb9dSDavid C Somayajulu uint32_t ctrl_status; 2717477ffb9dSDavid C Somayajulu 2718f931c534SVikas Chaudhary status = qla4xxx_hw_reset(ha); 2719f931c534SVikas Chaudhary if (status != QLA_SUCCESS) 2720f931c534SVikas Chaudhary return status; 2721afaf5a2dSDavid Somayajulu 2722f931c534SVikas Chaudhary status = QLA_ERROR; 2723afaf5a2dSDavid Somayajulu /* Wait until the Network Reset Intr bit is cleared */ 2724afaf5a2dSDavid Somayajulu max_wait_time = RESET_INTR_TOV; 2725afaf5a2dSDavid Somayajulu do { 2726afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2727afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2728afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2729afaf5a2dSDavid Somayajulu 2730afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 2731afaf5a2dSDavid Somayajulu break; 2732afaf5a2dSDavid Somayajulu 2733afaf5a2dSDavid Somayajulu msleep(1000); 2734afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2735afaf5a2dSDavid Somayajulu 2736afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 2737afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_WARNING 2738afaf5a2dSDavid Somayajulu "scsi%ld: Network Reset Intr not cleared by " 2739afaf5a2dSDavid Somayajulu "Network function, clearing it now!\n", 2740afaf5a2dSDavid Somayajulu ha->host_no)); 2741afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2742afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 2743afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2744afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2745afaf5a2dSDavid Somayajulu } 2746afaf5a2dSDavid Somayajulu 2747afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 2748afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 2749afaf5a2dSDavid Somayajulu do { 2750afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2751afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2752afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2753afaf5a2dSDavid Somayajulu 2754afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SOFT_RESET) == 0) { 2755afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 2756afaf5a2dSDavid Somayajulu break; 2757afaf5a2dSDavid Somayajulu } 2758afaf5a2dSDavid Somayajulu 2759afaf5a2dSDavid Somayajulu msleep(1000); 2760afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2761afaf5a2dSDavid Somayajulu 2762afaf5a2dSDavid Somayajulu /* 2763afaf5a2dSDavid Somayajulu * Also, make sure that the SCSI Reset Interrupt bit has been cleared 2764afaf5a2dSDavid Somayajulu * after the soft reset has taken place. 2765afaf5a2dSDavid Somayajulu */ 2766afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2767afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2768afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 2769afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2770afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2771afaf5a2dSDavid Somayajulu } 2772afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2773afaf5a2dSDavid Somayajulu 2774afaf5a2dSDavid Somayajulu /* If soft reset fails then most probably the bios on other 2775afaf5a2dSDavid Somayajulu * function is also enabled. 2776afaf5a2dSDavid Somayajulu * Since the initialization is sequential the other fn 2777afaf5a2dSDavid Somayajulu * wont be able to acknowledge the soft reset. 2778afaf5a2dSDavid Somayajulu * Issue a force soft reset to workaround this scenario. 2779afaf5a2dSDavid Somayajulu */ 2780afaf5a2dSDavid Somayajulu if (max_wait_time == 0) { 2781afaf5a2dSDavid Somayajulu /* Issue Force Soft Reset */ 2782afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2783afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 2784afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2785afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2786afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 2787afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 2788afaf5a2dSDavid Somayajulu do { 2789afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2790afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2791afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2792afaf5a2dSDavid Somayajulu 2793afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 2794afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 2795afaf5a2dSDavid Somayajulu break; 2796afaf5a2dSDavid Somayajulu } 2797afaf5a2dSDavid Somayajulu 2798afaf5a2dSDavid Somayajulu msleep(1000); 2799afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2800afaf5a2dSDavid Somayajulu } 2801afaf5a2dSDavid Somayajulu 2802afaf5a2dSDavid Somayajulu return status; 2803afaf5a2dSDavid Somayajulu } 2804afaf5a2dSDavid Somayajulu 2805afaf5a2dSDavid Somayajulu /** 2806f4f5df23SVikas Chaudhary * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 2807afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2808f4f5df23SVikas Chaudhary * @res: returned scsi status 2809afaf5a2dSDavid Somayajulu * 2810afaf5a2dSDavid Somayajulu * This routine is called just prior to a HARD RESET to return all 2811afaf5a2dSDavid Somayajulu * outstanding commands back to the Operating System. 2812afaf5a2dSDavid Somayajulu * Caller should make sure that the following locks are released 2813afaf5a2dSDavid Somayajulu * before this calling routine: Hardware lock, and io_request_lock. 2814afaf5a2dSDavid Somayajulu **/ 2815f4f5df23SVikas Chaudhary static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 2816afaf5a2dSDavid Somayajulu { 2817afaf5a2dSDavid Somayajulu struct srb *srb; 2818afaf5a2dSDavid Somayajulu int i; 2819afaf5a2dSDavid Somayajulu unsigned long flags; 2820afaf5a2dSDavid Somayajulu 2821afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2822afaf5a2dSDavid Somayajulu for (i = 0; i < ha->host->can_queue; i++) { 2823afaf5a2dSDavid Somayajulu srb = qla4xxx_del_from_active_array(ha, i); 2824afaf5a2dSDavid Somayajulu if (srb != NULL) { 2825f4f5df23SVikas Chaudhary srb->cmd->result = res; 282609a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 2827afaf5a2dSDavid Somayajulu } 2828afaf5a2dSDavid Somayajulu } 2829afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2830afaf5a2dSDavid Somayajulu } 2831afaf5a2dSDavid Somayajulu 2832f4f5df23SVikas Chaudhary void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 2833f4f5df23SVikas Chaudhary { 2834f4f5df23SVikas Chaudhary clear_bit(AF_ONLINE, &ha->flags); 2835f4f5df23SVikas Chaudhary 2836f4f5df23SVikas Chaudhary /* Disable the board */ 2837f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 2838f4f5df23SVikas Chaudhary 2839f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 2840f4f5df23SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2841f4f5df23SVikas Chaudhary clear_bit(AF_INIT_DONE, &ha->flags); 2842f4f5df23SVikas Chaudhary } 2843f4f5df23SVikas Chaudhary 2844b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 2845b3a271a9SManish Rangankar { 2846b3a271a9SManish Rangankar struct iscsi_session *sess; 2847b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2848b3a271a9SManish Rangankar 2849b3a271a9SManish Rangankar sess = cls_session->dd_data; 2850b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2851b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 285213483730SMike Christie 285313483730SMike Christie if (ddb_entry->ddb_type == FLASH_DDB) 285413483730SMike Christie iscsi_block_session(ddb_entry->sess); 285513483730SMike Christie else 285613483730SMike Christie iscsi_session_failure(cls_session->dd_data, 285713483730SMike Christie ISCSI_ERR_CONN_FAILED); 2858b3a271a9SManish Rangankar } 2859b3a271a9SManish Rangankar 2860afaf5a2dSDavid Somayajulu /** 2861afaf5a2dSDavid Somayajulu * qla4xxx_recover_adapter - recovers adapter after a fatal error 2862afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2863afaf5a2dSDavid Somayajulu **/ 2864f4f5df23SVikas Chaudhary static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 2865afaf5a2dSDavid Somayajulu { 2866f4f5df23SVikas Chaudhary int status = QLA_ERROR; 2867f4f5df23SVikas Chaudhary uint8_t reset_chip = 0; 28688e0f3a66SSarang Radke uint32_t dev_state; 28699ee91a38SShyam Sunder unsigned long wait; 2870afaf5a2dSDavid Somayajulu 2871afaf5a2dSDavid Somayajulu /* Stall incoming I/O until we are done */ 2872f4f5df23SVikas Chaudhary scsi_block_requests(ha->host); 2873afaf5a2dSDavid Somayajulu clear_bit(AF_ONLINE, &ha->flags); 2874b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 287550a29aecSMike Christie 2876f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 2877afaf5a2dSDavid Somayajulu 2878f4f5df23SVikas Chaudhary set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2879afaf5a2dSDavid Somayajulu 2880b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 2881b3a271a9SManish Rangankar 2882f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2883f4f5df23SVikas Chaudhary reset_chip = 1; 2884afaf5a2dSDavid Somayajulu 2885f4f5df23SVikas Chaudhary /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 2886f4f5df23SVikas Chaudhary * do not reset adapter, jump to initialize_adapter */ 2887f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2888f4f5df23SVikas Chaudhary status = QLA_SUCCESS; 2889f4f5df23SVikas Chaudhary goto recover_ha_init_adapter; 2890afaf5a2dSDavid Somayajulu } 2891afaf5a2dSDavid Somayajulu 2892f4f5df23SVikas Chaudhary /* For the ISP-82xx adapter, issue a stop_firmware if invoked 2893f4f5df23SVikas Chaudhary * from eh_host_reset or ioctl module */ 2894f4f5df23SVikas Chaudhary if (is_qla8022(ha) && !reset_chip && 2895f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2896f4f5df23SVikas Chaudhary 2897f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2898f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing stop_firmware...\n", 2899f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2900f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_firmware(ha); 2901f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 29022bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2903f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2904f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2905f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2906f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2907f4f5df23SVikas Chaudhary } else { 2908f4f5df23SVikas Chaudhary /* If the stop_firmware fails then 2909f4f5df23SVikas Chaudhary * reset the entire chip */ 2910f4f5df23SVikas Chaudhary reset_chip = 1; 2911f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2912f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2913f4f5df23SVikas Chaudhary } 2914f4f5df23SVikas Chaudhary } 2915f4f5df23SVikas Chaudhary 2916f4f5df23SVikas Chaudhary /* Issue full chip reset if recovering from a catastrophic error, 2917f4f5df23SVikas Chaudhary * or if stop_firmware fails for ISP-82xx. 2918f4f5df23SVikas Chaudhary * This is the default case for ISP-4xxx */ 2919f4f5df23SVikas Chaudhary if (!is_qla8022(ha) || reset_chip) { 29209ee91a38SShyam Sunder if (!is_qla8022(ha)) 29219ee91a38SShyam Sunder goto chip_reset; 29229ee91a38SShyam Sunder 29239ee91a38SShyam Sunder /* Check if 82XX firmware is alive or not 29249ee91a38SShyam Sunder * We may have arrived here from NEED_RESET 29259ee91a38SShyam Sunder * detection only */ 29269ee91a38SShyam Sunder if (test_bit(AF_FW_RECOVERY, &ha->flags)) 29279ee91a38SShyam Sunder goto chip_reset; 29289ee91a38SShyam Sunder 29299ee91a38SShyam Sunder wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 29309ee91a38SShyam Sunder while (time_before(jiffies, wait)) { 29319ee91a38SShyam Sunder if (qla4_8xxx_check_fw_alive(ha)) { 29329ee91a38SShyam Sunder qla4xxx_mailbox_premature_completion(ha); 29339ee91a38SShyam Sunder break; 29349ee91a38SShyam Sunder } 29359ee91a38SShyam Sunder 29369ee91a38SShyam Sunder set_current_state(TASK_UNINTERRUPTIBLE); 29379ee91a38SShyam Sunder schedule_timeout(HZ); 29389ee91a38SShyam Sunder } 29399ee91a38SShyam Sunder 29402bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2941f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 29429ee91a38SShyam Sunder chip_reset: 2943f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2944f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2945f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2946f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing chip reset..\n", 2947f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2948f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_chip(ha); 2949f4f5df23SVikas Chaudhary } 2950f4f5df23SVikas Chaudhary 2951f4f5df23SVikas Chaudhary /* Flush any pending ddb changed AENs */ 2952f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2953f4f5df23SVikas Chaudhary 2954f4f5df23SVikas Chaudhary recover_ha_init_adapter: 2955f4f5df23SVikas Chaudhary /* Upon successful firmware/chip reset, re-initialize the adapter */ 2956f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 2957f4f5df23SVikas Chaudhary /* For ISP-4xxx, force function 1 to always initialize 2958f4f5df23SVikas Chaudhary * before function 3 to prevent both funcions from 2959f4f5df23SVikas Chaudhary * stepping on top of the other */ 2960f4f5df23SVikas Chaudhary if (!is_qla8022(ha) && (ha->mac_index == 3)) 2961f4f5df23SVikas Chaudhary ssleep(6); 2962f4f5df23SVikas Chaudhary 2963f4f5df23SVikas Chaudhary /* NOTE: AF_ONLINE flag set upon successful completion of 2964f4f5df23SVikas Chaudhary * qla4xxx_initialize_adapter */ 296513483730SMike Christie status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 2966f4f5df23SVikas Chaudhary } 2967f4f5df23SVikas Chaudhary 2968f4f5df23SVikas Chaudhary /* Retry failed adapter initialization, if necessary 2969f4f5df23SVikas Chaudhary * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 2970f4f5df23SVikas Chaudhary * case to prevent ping-pong resets between functions */ 2971f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags) && 2972f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2973afaf5a2dSDavid Somayajulu /* Adapter initialization failed, see if we can retry 2974f4f5df23SVikas Chaudhary * resetting the ha. 2975f4f5df23SVikas Chaudhary * Since we don't want to block the DPC for too long 2976f4f5df23SVikas Chaudhary * with multiple resets in the same thread, 2977f4f5df23SVikas Chaudhary * utilize DPC to retry */ 29788e0f3a66SSarang Radke if (is_qla8022(ha)) { 29798e0f3a66SSarang Radke qla4_8xxx_idc_lock(ha); 29808e0f3a66SSarang Radke dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 29818e0f3a66SSarang Radke qla4_8xxx_idc_unlock(ha); 29828e0f3a66SSarang Radke if (dev_state == QLA82XX_DEV_FAILED) { 29838e0f3a66SSarang Radke ql4_printk(KERN_INFO, ha, "%s: don't retry " 29848e0f3a66SSarang Radke "recover adapter. H/W is in Failed " 29858e0f3a66SSarang Radke "state\n", __func__); 29868e0f3a66SSarang Radke qla4xxx_dead_adapter_cleanup(ha); 29878e0f3a66SSarang Radke clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 29888e0f3a66SSarang Radke clear_bit(DPC_RESET_HA, &ha->dpc_flags); 29898e0f3a66SSarang Radke clear_bit(DPC_RESET_HA_FW_CONTEXT, 29908e0f3a66SSarang Radke &ha->dpc_flags); 29918e0f3a66SSarang Radke status = QLA_ERROR; 29928e0f3a66SSarang Radke 29938e0f3a66SSarang Radke goto exit_recover; 29948e0f3a66SSarang Radke } 29958e0f3a66SSarang Radke } 29968e0f3a66SSarang Radke 2997afaf5a2dSDavid Somayajulu if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 2998afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 2999afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - retrying " 3000afaf5a2dSDavid Somayajulu "(%d) more times\n", ha->host_no, 3001afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 3002afaf5a2dSDavid Somayajulu set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3003afaf5a2dSDavid Somayajulu status = QLA_ERROR; 3004afaf5a2dSDavid Somayajulu } else { 3005afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt > 0) { 3006afaf5a2dSDavid Somayajulu /* Schedule another Reset HA--DPC will retry */ 3007afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt--; 3008afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - " 3009afaf5a2dSDavid Somayajulu "retry remaining %d\n", 3010afaf5a2dSDavid Somayajulu ha->host_no, 3011afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 3012afaf5a2dSDavid Somayajulu status = QLA_ERROR; 3013afaf5a2dSDavid Somayajulu } 3014afaf5a2dSDavid Somayajulu 3015afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt == 0) { 3016afaf5a2dSDavid Somayajulu /* Recover adapter retries have been exhausted. 3017afaf5a2dSDavid Somayajulu * Adapter DEAD */ 3018afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter " 3019afaf5a2dSDavid Somayajulu "failed - board disabled\n", 3020afaf5a2dSDavid Somayajulu ha->host_no)); 3021f4f5df23SVikas Chaudhary qla4xxx_dead_adapter_cleanup(ha); 3022afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3023afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3024f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, 3025afaf5a2dSDavid Somayajulu &ha->dpc_flags); 3026afaf5a2dSDavid Somayajulu status = QLA_ERROR; 3027afaf5a2dSDavid Somayajulu } 3028afaf5a2dSDavid Somayajulu } 3029afaf5a2dSDavid Somayajulu } else { 3030afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3031f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3032afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3033afaf5a2dSDavid Somayajulu } 3034afaf5a2dSDavid Somayajulu 30358e0f3a66SSarang Radke exit_recover: 3036afaf5a2dSDavid Somayajulu ha->adapter_error_count++; 3037afaf5a2dSDavid Somayajulu 3038f4f5df23SVikas Chaudhary if (test_bit(AF_ONLINE, &ha->flags)) 3039f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 3040afaf5a2dSDavid Somayajulu 3041f4f5df23SVikas Chaudhary scsi_unblock_requests(ha->host); 3042f4f5df23SVikas Chaudhary 3043f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 3044f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 304525985edcSLucas De Marchi status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 3046f4f5df23SVikas Chaudhary 3047afaf5a2dSDavid Somayajulu return status; 3048afaf5a2dSDavid Somayajulu } 3049afaf5a2dSDavid Somayajulu 3050b3a271a9SManish Rangankar static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 3051b3a271a9SManish Rangankar { 3052b3a271a9SManish Rangankar struct iscsi_session *sess; 3053b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 3054b3a271a9SManish Rangankar struct scsi_qla_host *ha; 3055b3a271a9SManish Rangankar 3056b3a271a9SManish Rangankar sess = cls_session->dd_data; 3057b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 3058b3a271a9SManish Rangankar ha = ddb_entry->ha; 3059b3a271a9SManish Rangankar if (!iscsi_is_session_online(cls_session)) { 3060b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 3061b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3062b3a271a9SManish Rangankar " unblock session\n", ha->host_no, __func__, 3063b3a271a9SManish Rangankar ddb_entry->fw_ddb_index); 3064b3a271a9SManish Rangankar iscsi_unblock_session(ddb_entry->sess); 3065b3a271a9SManish Rangankar } else { 3066b3a271a9SManish Rangankar /* Trigger relogin */ 306713483730SMike Christie if (ddb_entry->ddb_type == FLASH_DDB) { 306813483730SMike Christie if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 306913483730SMike Christie qla4xxx_arm_relogin_timer(ddb_entry); 307013483730SMike Christie } else 3071b3a271a9SManish Rangankar iscsi_session_failure(cls_session->dd_data, 3072b3a271a9SManish Rangankar ISCSI_ERR_CONN_FAILED); 3073b3a271a9SManish Rangankar } 3074b3a271a9SManish Rangankar } 3075b3a271a9SManish Rangankar } 3076b3a271a9SManish Rangankar 307713483730SMike Christie int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 307813483730SMike Christie { 307913483730SMike Christie struct iscsi_session *sess; 308013483730SMike Christie struct ddb_entry *ddb_entry; 308113483730SMike Christie struct scsi_qla_host *ha; 308213483730SMike Christie 308313483730SMike Christie sess = cls_session->dd_data; 308413483730SMike Christie ddb_entry = sess->dd_data; 308513483730SMike Christie ha = ddb_entry->ha; 308613483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 308713483730SMike Christie " unblock session\n", ha->host_no, __func__, 308813483730SMike Christie ddb_entry->fw_ddb_index); 308913483730SMike Christie 309013483730SMike Christie iscsi_unblock_session(ddb_entry->sess); 309113483730SMike Christie 309213483730SMike Christie /* Start scan target */ 309313483730SMike Christie if (test_bit(AF_ONLINE, &ha->flags)) { 309413483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 309513483730SMike Christie " start scan\n", ha->host_no, __func__, 309613483730SMike Christie ddb_entry->fw_ddb_index); 309713483730SMike Christie scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 309813483730SMike Christie } 309913483730SMike Christie return QLA_SUCCESS; 310013483730SMike Christie } 310113483730SMike Christie 310213483730SMike Christie int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 310313483730SMike Christie { 310413483730SMike Christie struct iscsi_session *sess; 310513483730SMike Christie struct ddb_entry *ddb_entry; 310613483730SMike Christie struct scsi_qla_host *ha; 310713483730SMike Christie 310813483730SMike Christie sess = cls_session->dd_data; 310913483730SMike Christie ddb_entry = sess->dd_data; 311013483730SMike Christie ha = ddb_entry->ha; 311113483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 311213483730SMike Christie " unblock user space session\n", ha->host_no, __func__, 311313483730SMike Christie ddb_entry->fw_ddb_index); 311413483730SMike Christie iscsi_conn_start(ddb_entry->conn); 311513483730SMike Christie iscsi_conn_login_event(ddb_entry->conn, 311613483730SMike Christie ISCSI_CONN_STATE_LOGGED_IN); 311713483730SMike Christie 311813483730SMike Christie return QLA_SUCCESS; 311913483730SMike Christie } 312013483730SMike Christie 31212d7924e6SVikas Chaudhary static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 31222d7924e6SVikas Chaudhary { 3123b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 31242d7924e6SVikas Chaudhary } 31252d7924e6SVikas Chaudhary 312613483730SMike Christie static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 312713483730SMike Christie { 312813483730SMike Christie uint16_t relogin_timer; 312913483730SMike Christie struct iscsi_session *sess; 313013483730SMike Christie struct ddb_entry *ddb_entry; 313113483730SMike Christie struct scsi_qla_host *ha; 313213483730SMike Christie 313313483730SMike Christie sess = cls_sess->dd_data; 313413483730SMike Christie ddb_entry = sess->dd_data; 313513483730SMike Christie ha = ddb_entry->ha; 313613483730SMike Christie 313713483730SMike Christie relogin_timer = max(ddb_entry->default_relogin_timeout, 313813483730SMike Christie (uint16_t)RELOGIN_TOV); 313913483730SMike Christie atomic_set(&ddb_entry->relogin_timer, relogin_timer); 314013483730SMike Christie 314113483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 314213483730SMike Christie "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 314313483730SMike Christie ddb_entry->fw_ddb_index, relogin_timer)); 314413483730SMike Christie 314513483730SMike Christie qla4xxx_login_flash_ddb(cls_sess); 314613483730SMike Christie } 314713483730SMike Christie 314813483730SMike Christie static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 314913483730SMike Christie { 315013483730SMike Christie struct iscsi_session *sess; 315113483730SMike Christie struct ddb_entry *ddb_entry; 315213483730SMike Christie struct scsi_qla_host *ha; 315313483730SMike Christie 315413483730SMike Christie sess = cls_sess->dd_data; 315513483730SMike Christie ddb_entry = sess->dd_data; 315613483730SMike Christie ha = ddb_entry->ha; 315713483730SMike Christie 315813483730SMike Christie if (!(ddb_entry->ddb_type == FLASH_DDB)) 315913483730SMike Christie return; 316013483730SMike Christie 316113483730SMike Christie if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 316213483730SMike Christie !iscsi_is_session_online(cls_sess)) { 316313483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 316413483730SMike Christie "relogin issued\n")); 316513483730SMike Christie qla4xxx_relogin_flash_ddb(cls_sess); 316613483730SMike Christie } 316713483730SMike Christie } 316813483730SMike Christie 3169f4f5df23SVikas Chaudhary void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 3170f4f5df23SVikas Chaudhary { 31711b46807eSLalit Chandivade if (ha->dpc_thread) 3172f4f5df23SVikas Chaudhary queue_work(ha->dpc_thread, &ha->dpc_work); 3173f4f5df23SVikas Chaudhary } 3174f4f5df23SVikas Chaudhary 3175ff884430SVikas Chaudhary static struct qla4_work_evt * 3176ff884430SVikas Chaudhary qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 3177ff884430SVikas Chaudhary enum qla4_work_type type) 3178ff884430SVikas Chaudhary { 3179ff884430SVikas Chaudhary struct qla4_work_evt *e; 3180ff884430SVikas Chaudhary uint32_t size = sizeof(struct qla4_work_evt) + data_size; 3181ff884430SVikas Chaudhary 3182ff884430SVikas Chaudhary e = kzalloc(size, GFP_ATOMIC); 3183ff884430SVikas Chaudhary if (!e) 3184ff884430SVikas Chaudhary return NULL; 3185ff884430SVikas Chaudhary 3186ff884430SVikas Chaudhary INIT_LIST_HEAD(&e->list); 3187ff884430SVikas Chaudhary e->type = type; 3188ff884430SVikas Chaudhary return e; 3189ff884430SVikas Chaudhary } 3190ff884430SVikas Chaudhary 3191ff884430SVikas Chaudhary static void qla4xxx_post_work(struct scsi_qla_host *ha, 3192ff884430SVikas Chaudhary struct qla4_work_evt *e) 3193ff884430SVikas Chaudhary { 3194ff884430SVikas Chaudhary unsigned long flags; 3195ff884430SVikas Chaudhary 3196ff884430SVikas Chaudhary spin_lock_irqsave(&ha->work_lock, flags); 3197ff884430SVikas Chaudhary list_add_tail(&e->list, &ha->work_list); 3198ff884430SVikas Chaudhary spin_unlock_irqrestore(&ha->work_lock, flags); 3199ff884430SVikas Chaudhary qla4xxx_wake_dpc(ha); 3200ff884430SVikas Chaudhary } 3201ff884430SVikas Chaudhary 3202ff884430SVikas Chaudhary int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 3203ff884430SVikas Chaudhary enum iscsi_host_event_code aen_code, 3204ff884430SVikas Chaudhary uint32_t data_size, uint8_t *data) 3205ff884430SVikas Chaudhary { 3206ff884430SVikas Chaudhary struct qla4_work_evt *e; 3207ff884430SVikas Chaudhary 3208ff884430SVikas Chaudhary e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 3209ff884430SVikas Chaudhary if (!e) 3210ff884430SVikas Chaudhary return QLA_ERROR; 3211ff884430SVikas Chaudhary 3212ff884430SVikas Chaudhary e->u.aen.code = aen_code; 3213ff884430SVikas Chaudhary e->u.aen.data_size = data_size; 3214ff884430SVikas Chaudhary memcpy(e->u.aen.data, data, data_size); 3215ff884430SVikas Chaudhary 3216ff884430SVikas Chaudhary qla4xxx_post_work(ha, e); 3217ff884430SVikas Chaudhary 3218ff884430SVikas Chaudhary return QLA_SUCCESS; 3219ff884430SVikas Chaudhary } 3220ff884430SVikas Chaudhary 3221c0b9d3f7SVikas Chaudhary int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 3222c0b9d3f7SVikas Chaudhary uint32_t status, uint32_t pid, 3223c0b9d3f7SVikas Chaudhary uint32_t data_size, uint8_t *data) 3224c0b9d3f7SVikas Chaudhary { 3225c0b9d3f7SVikas Chaudhary struct qla4_work_evt *e; 3226c0b9d3f7SVikas Chaudhary 3227c0b9d3f7SVikas Chaudhary e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 3228c0b9d3f7SVikas Chaudhary if (!e) 3229c0b9d3f7SVikas Chaudhary return QLA_ERROR; 3230c0b9d3f7SVikas Chaudhary 3231c0b9d3f7SVikas Chaudhary e->u.ping.status = status; 3232c0b9d3f7SVikas Chaudhary e->u.ping.pid = pid; 3233c0b9d3f7SVikas Chaudhary e->u.ping.data_size = data_size; 3234c0b9d3f7SVikas Chaudhary memcpy(e->u.ping.data, data, data_size); 3235c0b9d3f7SVikas Chaudhary 3236c0b9d3f7SVikas Chaudhary qla4xxx_post_work(ha, e); 3237c0b9d3f7SVikas Chaudhary 3238c0b9d3f7SVikas Chaudhary return QLA_SUCCESS; 3239c0b9d3f7SVikas Chaudhary } 3240c0b9d3f7SVikas Chaudhary 3241ff884430SVikas Chaudhary void qla4xxx_do_work(struct scsi_qla_host *ha) 3242ff884430SVikas Chaudhary { 3243ff884430SVikas Chaudhary struct qla4_work_evt *e, *tmp; 3244ff884430SVikas Chaudhary unsigned long flags; 3245ff884430SVikas Chaudhary LIST_HEAD(work); 3246ff884430SVikas Chaudhary 3247ff884430SVikas Chaudhary spin_lock_irqsave(&ha->work_lock, flags); 3248ff884430SVikas Chaudhary list_splice_init(&ha->work_list, &work); 3249ff884430SVikas Chaudhary spin_unlock_irqrestore(&ha->work_lock, flags); 3250ff884430SVikas Chaudhary 3251ff884430SVikas Chaudhary list_for_each_entry_safe(e, tmp, &work, list) { 3252ff884430SVikas Chaudhary list_del_init(&e->list); 3253ff884430SVikas Chaudhary 3254ff884430SVikas Chaudhary switch (e->type) { 3255ff884430SVikas Chaudhary case QLA4_EVENT_AEN: 3256ff884430SVikas Chaudhary iscsi_post_host_event(ha->host_no, 3257ff884430SVikas Chaudhary &qla4xxx_iscsi_transport, 3258ff884430SVikas Chaudhary e->u.aen.code, 3259ff884430SVikas Chaudhary e->u.aen.data_size, 3260ff884430SVikas Chaudhary e->u.aen.data); 3261ff884430SVikas Chaudhary break; 3262c0b9d3f7SVikas Chaudhary case QLA4_EVENT_PING_STATUS: 3263c0b9d3f7SVikas Chaudhary iscsi_ping_comp_event(ha->host_no, 3264c0b9d3f7SVikas Chaudhary &qla4xxx_iscsi_transport, 3265c0b9d3f7SVikas Chaudhary e->u.ping.status, 3266c0b9d3f7SVikas Chaudhary e->u.ping.pid, 3267c0b9d3f7SVikas Chaudhary e->u.ping.data_size, 3268c0b9d3f7SVikas Chaudhary e->u.ping.data); 3269c0b9d3f7SVikas Chaudhary break; 3270ff884430SVikas Chaudhary default: 3271ff884430SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 3272ff884430SVikas Chaudhary "supported", e->type); 3273ff884430SVikas Chaudhary } 3274ff884430SVikas Chaudhary kfree(e); 3275ff884430SVikas Chaudhary } 3276ff884430SVikas Chaudhary } 3277ff884430SVikas Chaudhary 3278afaf5a2dSDavid Somayajulu /** 3279afaf5a2dSDavid Somayajulu * qla4xxx_do_dpc - dpc routine 3280afaf5a2dSDavid Somayajulu * @data: in our case pointer to adapter structure 3281afaf5a2dSDavid Somayajulu * 3282afaf5a2dSDavid Somayajulu * This routine is a task that is schedule by the interrupt handler 3283afaf5a2dSDavid Somayajulu * to perform the background processing for interrupts. We put it 3284afaf5a2dSDavid Somayajulu * on a task queue that is consumed whenever the scheduler runs; that's 3285afaf5a2dSDavid Somayajulu * so you can do anything (i.e. put the process to sleep etc). In fact, 3286afaf5a2dSDavid Somayajulu * the mid-level tries to sleep when it reaches the driver threshold 3287afaf5a2dSDavid Somayajulu * "host->can_queue". This can cause a panic if we were in our interrupt code. 3288afaf5a2dSDavid Somayajulu **/ 3289c4028958SDavid Howells static void qla4xxx_do_dpc(struct work_struct *work) 3290afaf5a2dSDavid Somayajulu { 3291c4028958SDavid Howells struct scsi_qla_host *ha = 3292c4028958SDavid Howells container_of(work, struct scsi_qla_host, dpc_work); 3293477ffb9dSDavid C Somayajulu int status = QLA_ERROR; 3294afaf5a2dSDavid Somayajulu 3295f26b9044SDavid C Somayajulu DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 3296f4f5df23SVikas Chaudhary "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 3297f4f5df23SVikas Chaudhary ha->host_no, __func__, ha->flags, ha->dpc_flags)) 3298afaf5a2dSDavid Somayajulu 3299afaf5a2dSDavid Somayajulu /* Initialization not yet finished. Don't do anything yet. */ 3300afaf5a2dSDavid Somayajulu if (!test_bit(AF_INIT_DONE, &ha->flags)) 33011b46807eSLalit Chandivade return; 3302afaf5a2dSDavid Somayajulu 33032232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 33042232be0dSLalit Chandivade DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 33052232be0dSLalit Chandivade ha->host_no, __func__, ha->flags)); 33061b46807eSLalit Chandivade return; 33072232be0dSLalit Chandivade } 33082232be0dSLalit Chandivade 3309ff884430SVikas Chaudhary /* post events to application */ 3310ff884430SVikas Chaudhary qla4xxx_do_work(ha); 3311ff884430SVikas Chaudhary 3312f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 3313f4f5df23SVikas Chaudhary if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 3314f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 3315f4f5df23SVikas Chaudhary qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 3316f4f5df23SVikas Chaudhary QLA82XX_DEV_FAILED); 3317f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 3318f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 3319f4f5df23SVikas Chaudhary qla4_8xxx_device_state_handler(ha); 3320f4f5df23SVikas Chaudhary } 3321f4f5df23SVikas Chaudhary if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 3322f4f5df23SVikas Chaudhary qla4_8xxx_need_qsnt_handler(ha); 3323f4f5df23SVikas Chaudhary } 3324f4f5df23SVikas Chaudhary } 3325f4f5df23SVikas Chaudhary 3326f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 3327f4f5df23SVikas Chaudhary (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 3328afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 3329f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 3330f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 3331f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 3332f4f5df23SVikas Chaudhary ha->host_no, __func__)); 3333f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3334f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3335f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3336f4f5df23SVikas Chaudhary goto dpc_post_reset_ha; 3337f4f5df23SVikas Chaudhary } 3338f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 3339f26b9044SDavid C Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags)) 3340f4f5df23SVikas Chaudhary qla4xxx_recover_adapter(ha); 3341afaf5a2dSDavid Somayajulu 3342477ffb9dSDavid C Somayajulu if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3343afaf5a2dSDavid Somayajulu uint8_t wait_time = RESET_INTR_TOV; 3344afaf5a2dSDavid Somayajulu 3345afaf5a2dSDavid Somayajulu while ((readw(&ha->reg->ctrl_status) & 3346afaf5a2dSDavid Somayajulu (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 3347afaf5a2dSDavid Somayajulu if (--wait_time == 0) 3348afaf5a2dSDavid Somayajulu break; 3349afaf5a2dSDavid Somayajulu msleep(1000); 3350afaf5a2dSDavid Somayajulu } 3351afaf5a2dSDavid Somayajulu if (wait_time == 0) 3352afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: SR|FSR " 3353afaf5a2dSDavid Somayajulu "bit not cleared-- resetting\n", 3354afaf5a2dSDavid Somayajulu ha->host_no, __func__)); 3355f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3356477ffb9dSDavid C Somayajulu if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 3357477ffb9dSDavid C Somayajulu qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3358f4f5df23SVikas Chaudhary status = qla4xxx_recover_adapter(ha); 3359477ffb9dSDavid C Somayajulu } 3360477ffb9dSDavid C Somayajulu clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3361477ffb9dSDavid C Somayajulu if (status == QLA_SUCCESS) 3362f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 3363afaf5a2dSDavid Somayajulu } 3364afaf5a2dSDavid Somayajulu } 3365afaf5a2dSDavid Somayajulu 3366f4f5df23SVikas Chaudhary dpc_post_reset_ha: 3367afaf5a2dSDavid Somayajulu /* ---- process AEN? --- */ 3368afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 3369afaf5a2dSDavid Somayajulu qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 3370afaf5a2dSDavid Somayajulu 3371afaf5a2dSDavid Somayajulu /* ---- Get DHCP IP Address? --- */ 3372afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 3373afaf5a2dSDavid Somayajulu qla4xxx_get_dhcp_ip_address(ha); 3374afaf5a2dSDavid Somayajulu 337513483730SMike Christie /* ---- relogin device? --- */ 337613483730SMike Christie if (adapter_up(ha) && 337713483730SMike Christie test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 337813483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 337913483730SMike Christie } 338013483730SMike Christie 3381065aa1b4SVikas Chaudhary /* ---- link change? --- */ 3382065aa1b4SVikas Chaudhary if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 3383065aa1b4SVikas Chaudhary if (!test_bit(AF_LINK_UP, &ha->flags)) { 3384065aa1b4SVikas Chaudhary /* ---- link down? --- */ 33852d7924e6SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 3386065aa1b4SVikas Chaudhary } else { 3387065aa1b4SVikas Chaudhary /* ---- link up? --- * 3388065aa1b4SVikas Chaudhary * F/W will auto login to all devices ONLY ONCE after 3389065aa1b4SVikas Chaudhary * link up during driver initialization and runtime 3390065aa1b4SVikas Chaudhary * fatal error recovery. Therefore, the driver must 3391065aa1b4SVikas Chaudhary * manually relogin to devices when recovering from 3392065aa1b4SVikas Chaudhary * connection failures, logouts, expired KATO, etc. */ 339313483730SMike Christie if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 339413483730SMike Christie qla4xxx_build_ddb_list(ha, ha->is_reset); 339513483730SMike Christie iscsi_host_for_each_session(ha->host, 339613483730SMike Christie qla4xxx_login_flash_ddb); 339713483730SMike Christie } else 33982d7924e6SVikas Chaudhary qla4xxx_relogin_all_devices(ha); 3399065aa1b4SVikas Chaudhary } 3400065aa1b4SVikas Chaudhary } 3401afaf5a2dSDavid Somayajulu } 3402afaf5a2dSDavid Somayajulu 3403afaf5a2dSDavid Somayajulu /** 3404afaf5a2dSDavid Somayajulu * qla4xxx_free_adapter - release the adapter 3405afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 3406afaf5a2dSDavid Somayajulu **/ 3407afaf5a2dSDavid Somayajulu static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 3408afaf5a2dSDavid Somayajulu { 34098a288960SSarang Radke qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 3410afaf5a2dSDavid Somayajulu 3411afaf5a2dSDavid Somayajulu if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 3412afaf5a2dSDavid Somayajulu /* Turn-off interrupts on the card. */ 3413f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 3414afaf5a2dSDavid Somayajulu } 3415afaf5a2dSDavid Somayajulu 3416afaf5a2dSDavid Somayajulu /* Remove timer thread, if present */ 3417afaf5a2dSDavid Somayajulu if (ha->timer_active) 3418afaf5a2dSDavid Somayajulu qla4xxx_stop_timer(ha); 3419afaf5a2dSDavid Somayajulu 3420f4f5df23SVikas Chaudhary /* Kill the kernel thread for this host */ 3421f4f5df23SVikas Chaudhary if (ha->dpc_thread) 3422f4f5df23SVikas Chaudhary destroy_workqueue(ha->dpc_thread); 3423f4f5df23SVikas Chaudhary 3424b3a271a9SManish Rangankar /* Kill the kernel thread for this host */ 3425b3a271a9SManish Rangankar if (ha->task_wq) 3426b3a271a9SManish Rangankar destroy_workqueue(ha->task_wq); 3427b3a271a9SManish Rangankar 3428f4f5df23SVikas Chaudhary /* Put firmware in known state */ 3429f4f5df23SVikas Chaudhary ha->isp_ops->reset_firmware(ha); 3430f4f5df23SVikas Chaudhary 3431f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 3432f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 3433f4f5df23SVikas Chaudhary qla4_8xxx_clear_drv_active(ha); 3434f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 3435f4f5df23SVikas Chaudhary } 3436f4f5df23SVikas Chaudhary 3437afaf5a2dSDavid Somayajulu /* Detach interrupts */ 3438afaf5a2dSDavid Somayajulu if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 3439f4f5df23SVikas Chaudhary qla4xxx_free_irqs(ha); 3440afaf5a2dSDavid Somayajulu 3441bee4fe8eSDavid C Somayajulu /* free extra memory */ 3442bee4fe8eSDavid C Somayajulu qla4xxx_mem_free(ha); 3443f4f5df23SVikas Chaudhary } 3444bee4fe8eSDavid C Somayajulu 3445f4f5df23SVikas Chaudhary int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 3446f4f5df23SVikas Chaudhary { 3447f4f5df23SVikas Chaudhary int status = 0; 3448f4f5df23SVikas Chaudhary uint8_t revision_id; 3449f4f5df23SVikas Chaudhary unsigned long mem_base, mem_len, db_base, db_len; 3450f4f5df23SVikas Chaudhary struct pci_dev *pdev = ha->pdev; 3451afaf5a2dSDavid Somayajulu 3452f4f5df23SVikas Chaudhary status = pci_request_regions(pdev, DRIVER_NAME); 3453f4f5df23SVikas Chaudhary if (status) { 3454f4f5df23SVikas Chaudhary printk(KERN_WARNING 3455f4f5df23SVikas Chaudhary "scsi(%ld) Failed to reserve PIO regions (%s) " 3456f4f5df23SVikas Chaudhary "status=%d\n", ha->host_no, pci_name(pdev), status); 3457f4f5df23SVikas Chaudhary goto iospace_error_exit; 3458f4f5df23SVikas Chaudhary } 3459f4f5df23SVikas Chaudhary 3460f4f5df23SVikas Chaudhary pci_read_config_byte(pdev, PCI_REVISION_ID, &revision_id); 3461f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 3462f4f5df23SVikas Chaudhary __func__, revision_id)); 3463f4f5df23SVikas Chaudhary ha->revision_id = revision_id; 3464f4f5df23SVikas Chaudhary 3465f4f5df23SVikas Chaudhary /* remap phys address */ 3466f4f5df23SVikas Chaudhary mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 3467f4f5df23SVikas Chaudhary mem_len = pci_resource_len(pdev, 0); 3468f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 3469f4f5df23SVikas Chaudhary __func__, mem_base, mem_len)); 3470f4f5df23SVikas Chaudhary 3471f4f5df23SVikas Chaudhary /* mapping of pcibase pointer */ 3472f4f5df23SVikas Chaudhary ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 3473f4f5df23SVikas Chaudhary if (!ha->nx_pcibase) { 3474f4f5df23SVikas Chaudhary printk(KERN_ERR 3475f4f5df23SVikas Chaudhary "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 3476f4f5df23SVikas Chaudhary pci_release_regions(ha->pdev); 3477f4f5df23SVikas Chaudhary goto iospace_error_exit; 3478f4f5df23SVikas Chaudhary } 3479f4f5df23SVikas Chaudhary 3480f4f5df23SVikas Chaudhary /* Mapping of IO base pointer, door bell read and write pointer */ 3481f4f5df23SVikas Chaudhary 3482f4f5df23SVikas Chaudhary /* mapping of IO base pointer */ 3483f4f5df23SVikas Chaudhary ha->qla4_8xxx_reg = 3484f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase + 3485f4f5df23SVikas Chaudhary 0xbc000 + (ha->pdev->devfn << 11)); 3486f4f5df23SVikas Chaudhary 3487f4f5df23SVikas Chaudhary db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 3488f4f5df23SVikas Chaudhary db_len = pci_resource_len(pdev, 4); 3489f4f5df23SVikas Chaudhary 34902657c800SShyam Sundar ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 34912657c800SShyam Sundar QLA82XX_CAM_RAM_DB2); 3492f4f5df23SVikas Chaudhary 34932657c800SShyam Sundar return 0; 3494f4f5df23SVikas Chaudhary iospace_error_exit: 3495f4f5df23SVikas Chaudhary return -ENOMEM; 3496afaf5a2dSDavid Somayajulu } 3497afaf5a2dSDavid Somayajulu 3498afaf5a2dSDavid Somayajulu /*** 3499afaf5a2dSDavid Somayajulu * qla4xxx_iospace_config - maps registers 3500afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 3501afaf5a2dSDavid Somayajulu * 3502afaf5a2dSDavid Somayajulu * This routines maps HBA's registers from the pci address space 3503afaf5a2dSDavid Somayajulu * into the kernel virtual address space for memory mapped i/o. 3504afaf5a2dSDavid Somayajulu **/ 3505f4f5df23SVikas Chaudhary int qla4xxx_iospace_config(struct scsi_qla_host *ha) 3506afaf5a2dSDavid Somayajulu { 3507afaf5a2dSDavid Somayajulu unsigned long pio, pio_len, pio_flags; 3508afaf5a2dSDavid Somayajulu unsigned long mmio, mmio_len, mmio_flags; 3509afaf5a2dSDavid Somayajulu 3510afaf5a2dSDavid Somayajulu pio = pci_resource_start(ha->pdev, 0); 3511afaf5a2dSDavid Somayajulu pio_len = pci_resource_len(ha->pdev, 0); 3512afaf5a2dSDavid Somayajulu pio_flags = pci_resource_flags(ha->pdev, 0); 3513afaf5a2dSDavid Somayajulu if (pio_flags & IORESOURCE_IO) { 3514afaf5a2dSDavid Somayajulu if (pio_len < MIN_IOBASE_LEN) { 3515c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3516afaf5a2dSDavid Somayajulu "Invalid PCI I/O region size\n"); 3517afaf5a2dSDavid Somayajulu pio = 0; 3518afaf5a2dSDavid Somayajulu } 3519afaf5a2dSDavid Somayajulu } else { 3520c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 3521afaf5a2dSDavid Somayajulu pio = 0; 3522afaf5a2dSDavid Somayajulu } 3523afaf5a2dSDavid Somayajulu 3524afaf5a2dSDavid Somayajulu /* Use MMIO operations for all accesses. */ 3525afaf5a2dSDavid Somayajulu mmio = pci_resource_start(ha->pdev, 1); 3526afaf5a2dSDavid Somayajulu mmio_len = pci_resource_len(ha->pdev, 1); 3527afaf5a2dSDavid Somayajulu mmio_flags = pci_resource_flags(ha->pdev, 1); 3528afaf5a2dSDavid Somayajulu 3529afaf5a2dSDavid Somayajulu if (!(mmio_flags & IORESOURCE_MEM)) { 3530c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3531afaf5a2dSDavid Somayajulu "region #0 not an MMIO resource, aborting\n"); 3532afaf5a2dSDavid Somayajulu 3533afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3534afaf5a2dSDavid Somayajulu } 3535c2660df3SVikas Chaudhary 3536afaf5a2dSDavid Somayajulu if (mmio_len < MIN_IOBASE_LEN) { 3537c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3538afaf5a2dSDavid Somayajulu "Invalid PCI mem region size, aborting\n"); 3539afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3540afaf5a2dSDavid Somayajulu } 3541afaf5a2dSDavid Somayajulu 3542afaf5a2dSDavid Somayajulu if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 3543c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3544afaf5a2dSDavid Somayajulu "Failed to reserve PIO/MMIO regions\n"); 3545afaf5a2dSDavid Somayajulu 3546afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3547afaf5a2dSDavid Somayajulu } 3548afaf5a2dSDavid Somayajulu 3549afaf5a2dSDavid Somayajulu ha->pio_address = pio; 3550afaf5a2dSDavid Somayajulu ha->pio_length = pio_len; 3551afaf5a2dSDavid Somayajulu ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 3552afaf5a2dSDavid Somayajulu if (!ha->reg) { 3553c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3554afaf5a2dSDavid Somayajulu "cannot remap MMIO, aborting\n"); 3555afaf5a2dSDavid Somayajulu 3556afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3557afaf5a2dSDavid Somayajulu } 3558afaf5a2dSDavid Somayajulu 3559afaf5a2dSDavid Somayajulu return 0; 3560afaf5a2dSDavid Somayajulu 3561afaf5a2dSDavid Somayajulu iospace_error_exit: 3562afaf5a2dSDavid Somayajulu return -ENOMEM; 3563afaf5a2dSDavid Somayajulu } 3564afaf5a2dSDavid Somayajulu 3565f4f5df23SVikas Chaudhary static struct isp_operations qla4xxx_isp_ops = { 3566f4f5df23SVikas Chaudhary .iospace_config = qla4xxx_iospace_config, 3567f4f5df23SVikas Chaudhary .pci_config = qla4xxx_pci_config, 3568f4f5df23SVikas Chaudhary .disable_intrs = qla4xxx_disable_intrs, 3569f4f5df23SVikas Chaudhary .enable_intrs = qla4xxx_enable_intrs, 3570f4f5df23SVikas Chaudhary .start_firmware = qla4xxx_start_firmware, 3571f4f5df23SVikas Chaudhary .intr_handler = qla4xxx_intr_handler, 3572f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4xxx_interrupt_service_routine, 3573f4f5df23SVikas Chaudhary .reset_chip = qla4xxx_soft_reset, 3574f4f5df23SVikas Chaudhary .reset_firmware = qla4xxx_hw_reset, 3575f4f5df23SVikas Chaudhary .queue_iocb = qla4xxx_queue_iocb, 3576f4f5df23SVikas Chaudhary .complete_iocb = qla4xxx_complete_iocb, 3577f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 3578f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 3579f4f5df23SVikas Chaudhary .get_sys_info = qla4xxx_get_sys_info, 3580f4f5df23SVikas Chaudhary }; 3581f4f5df23SVikas Chaudhary 3582f4f5df23SVikas Chaudhary static struct isp_operations qla4_8xxx_isp_ops = { 3583f4f5df23SVikas Chaudhary .iospace_config = qla4_8xxx_iospace_config, 3584f4f5df23SVikas Chaudhary .pci_config = qla4_8xxx_pci_config, 3585f4f5df23SVikas Chaudhary .disable_intrs = qla4_8xxx_disable_intrs, 3586f4f5df23SVikas Chaudhary .enable_intrs = qla4_8xxx_enable_intrs, 3587f4f5df23SVikas Chaudhary .start_firmware = qla4_8xxx_load_risc, 3588f4f5df23SVikas Chaudhary .intr_handler = qla4_8xxx_intr_handler, 3589f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4_8xxx_interrupt_service_routine, 3590f4f5df23SVikas Chaudhary .reset_chip = qla4_8xxx_isp_reset, 3591f4f5df23SVikas Chaudhary .reset_firmware = qla4_8xxx_stop_firmware, 3592f4f5df23SVikas Chaudhary .queue_iocb = qla4_8xxx_queue_iocb, 3593f4f5df23SVikas Chaudhary .complete_iocb = qla4_8xxx_complete_iocb, 3594f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out, 3595f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in, 3596f4f5df23SVikas Chaudhary .get_sys_info = qla4_8xxx_get_sys_info, 3597f4f5df23SVikas Chaudhary }; 3598f4f5df23SVikas Chaudhary 3599f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3600f4f5df23SVikas Chaudhary { 3601f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 3602f4f5df23SVikas Chaudhary } 3603f4f5df23SVikas Chaudhary 3604f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3605f4f5df23SVikas Chaudhary { 3606f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out)); 3607f4f5df23SVikas Chaudhary } 3608f4f5df23SVikas Chaudhary 3609f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3610f4f5df23SVikas Chaudhary { 3611f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 3612f4f5df23SVikas Chaudhary } 3613f4f5df23SVikas Chaudhary 3614f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3615f4f5df23SVikas Chaudhary { 3616f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in)); 3617f4f5df23SVikas Chaudhary } 3618f4f5df23SVikas Chaudhary 36192a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 36202a991c21SManish Rangankar { 36212a991c21SManish Rangankar struct scsi_qla_host *ha = data; 36222a991c21SManish Rangankar char *str = buf; 36232a991c21SManish Rangankar int rc; 36242a991c21SManish Rangankar 36252a991c21SManish Rangankar switch (type) { 36262a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 36272a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 36282a991c21SManish Rangankar break; 36292a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 36302a991c21SManish Rangankar rc = sprintf(str, "0\n"); 36312a991c21SManish Rangankar break; 36322a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 36332a991c21SManish Rangankar rc = sysfs_format_mac(str, ha->my_mac, 36342a991c21SManish Rangankar MAC_ADDR_LEN); 36352a991c21SManish Rangankar break; 36362a991c21SManish Rangankar default: 36372a991c21SManish Rangankar rc = -ENOSYS; 36382a991c21SManish Rangankar break; 36392a991c21SManish Rangankar } 36402a991c21SManish Rangankar return rc; 36412a991c21SManish Rangankar } 36422a991c21SManish Rangankar 3643587a1f16SAl Viro static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 36442a991c21SManish Rangankar { 36452a991c21SManish Rangankar int rc; 36462a991c21SManish Rangankar 36472a991c21SManish Rangankar switch (type) { 36482a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 36492a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 36502a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 36512a991c21SManish Rangankar rc = S_IRUGO; 36522a991c21SManish Rangankar break; 36532a991c21SManish Rangankar default: 36542a991c21SManish Rangankar rc = 0; 36552a991c21SManish Rangankar break; 36562a991c21SManish Rangankar } 36572a991c21SManish Rangankar return rc; 36582a991c21SManish Rangankar } 36592a991c21SManish Rangankar 36602a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 36612a991c21SManish Rangankar { 36622a991c21SManish Rangankar struct scsi_qla_host *ha = data; 36632a991c21SManish Rangankar char *str = buf; 36642a991c21SManish Rangankar int rc; 36652a991c21SManish Rangankar 36662a991c21SManish Rangankar switch (type) { 36672a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 36682a991c21SManish Rangankar rc = sprintf(str, "%s\n", ha->name_string); 36692a991c21SManish Rangankar break; 36702a991c21SManish Rangankar default: 36712a991c21SManish Rangankar rc = -ENOSYS; 36722a991c21SManish Rangankar break; 36732a991c21SManish Rangankar } 36742a991c21SManish Rangankar return rc; 36752a991c21SManish Rangankar } 36762a991c21SManish Rangankar 3677587a1f16SAl Viro static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 36782a991c21SManish Rangankar { 36792a991c21SManish Rangankar int rc; 36802a991c21SManish Rangankar 36812a991c21SManish Rangankar switch (type) { 36822a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 36832a991c21SManish Rangankar rc = S_IRUGO; 36842a991c21SManish Rangankar break; 36852a991c21SManish Rangankar default: 36862a991c21SManish Rangankar rc = 0; 36872a991c21SManish Rangankar break; 36882a991c21SManish Rangankar } 36892a991c21SManish Rangankar return rc; 36902a991c21SManish Rangankar } 36912a991c21SManish Rangankar 36922a991c21SManish Rangankar static ssize_t 36932a991c21SManish Rangankar qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 36942a991c21SManish Rangankar char *buf) 36952a991c21SManish Rangankar { 36962a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 36972a991c21SManish Rangankar char *str = buf; 36982a991c21SManish Rangankar int rc; 36992a991c21SManish Rangankar 37002a991c21SManish Rangankar switch (type) { 37012a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 37022a991c21SManish Rangankar rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 37032a991c21SManish Rangankar break; 37042a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 37052a991c21SManish Rangankar if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 37062a991c21SManish Rangankar rc = sprintf(buf, "%pI4\n", 37072a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 37082a991c21SManish Rangankar else 37092a991c21SManish Rangankar rc = sprintf(str, "%pI6\n", 37102a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 37112a991c21SManish Rangankar break; 37122a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 37132a991c21SManish Rangankar rc = sprintf(str, "%d\n", boot_conn->dest_port); 37142a991c21SManish Rangankar break; 37152a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 37162a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 37172a991c21SManish Rangankar boot_conn->chap.target_chap_name_length, 37182a991c21SManish Rangankar (char *)&boot_conn->chap.target_chap_name); 37192a991c21SManish Rangankar break; 37202a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 37212a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 37222a991c21SManish Rangankar boot_conn->chap.target_secret_length, 37232a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret); 37242a991c21SManish Rangankar break; 37252a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 37262a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 37272a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length, 37282a991c21SManish Rangankar (char *)&boot_conn->chap.intr_chap_name); 37292a991c21SManish Rangankar break; 37302a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 37312a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 37322a991c21SManish Rangankar boot_conn->chap.intr_secret_length, 37332a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret); 37342a991c21SManish Rangankar break; 37352a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 37362a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 37372a991c21SManish Rangankar break; 37382a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 37392a991c21SManish Rangankar rc = sprintf(str, "0\n"); 37402a991c21SManish Rangankar break; 37412a991c21SManish Rangankar default: 37422a991c21SManish Rangankar rc = -ENOSYS; 37432a991c21SManish Rangankar break; 37442a991c21SManish Rangankar } 37452a991c21SManish Rangankar return rc; 37462a991c21SManish Rangankar } 37472a991c21SManish Rangankar 37482a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 37492a991c21SManish Rangankar { 37502a991c21SManish Rangankar struct scsi_qla_host *ha = data; 37512a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 37522a991c21SManish Rangankar 37532a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 37542a991c21SManish Rangankar } 37552a991c21SManish Rangankar 37562a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 37572a991c21SManish Rangankar { 37582a991c21SManish Rangankar struct scsi_qla_host *ha = data; 37592a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 37602a991c21SManish Rangankar 37612a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 37622a991c21SManish Rangankar } 37632a991c21SManish Rangankar 3764587a1f16SAl Viro static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 37652a991c21SManish Rangankar { 37662a991c21SManish Rangankar int rc; 37672a991c21SManish Rangankar 37682a991c21SManish Rangankar switch (type) { 37692a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 37702a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 37712a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 37722a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 37732a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 37742a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 37752a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 37762a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 37772a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 37782a991c21SManish Rangankar rc = S_IRUGO; 37792a991c21SManish Rangankar break; 37802a991c21SManish Rangankar default: 37812a991c21SManish Rangankar rc = 0; 37822a991c21SManish Rangankar break; 37832a991c21SManish Rangankar } 37842a991c21SManish Rangankar return rc; 37852a991c21SManish Rangankar } 37862a991c21SManish Rangankar 37872a991c21SManish Rangankar static void qla4xxx_boot_release(void *data) 37882a991c21SManish Rangankar { 37892a991c21SManish Rangankar struct scsi_qla_host *ha = data; 37902a991c21SManish Rangankar 37912a991c21SManish Rangankar scsi_host_put(ha->host); 37922a991c21SManish Rangankar } 37932a991c21SManish Rangankar 37942a991c21SManish Rangankar static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 37952a991c21SManish Rangankar { 37962a991c21SManish Rangankar dma_addr_t buf_dma; 37972a991c21SManish Rangankar uint32_t addr, pri_addr, sec_addr; 37982a991c21SManish Rangankar uint32_t offset; 37992a991c21SManish Rangankar uint16_t func_num; 38002a991c21SManish Rangankar uint8_t val; 38012a991c21SManish Rangankar uint8_t *buf = NULL; 38022a991c21SManish Rangankar size_t size = 13 * sizeof(uint8_t); 38032a991c21SManish Rangankar int ret = QLA_SUCCESS; 38042a991c21SManish Rangankar 38052a991c21SManish Rangankar func_num = PCI_FUNC(ha->pdev->devfn); 38062a991c21SManish Rangankar 38070d5b36b8SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 38080d5b36b8SManish Rangankar __func__, ha->pdev->device, func_num); 38092a991c21SManish Rangankar 38100d5b36b8SManish Rangankar if (is_qla40XX(ha)) { 38112a991c21SManish Rangankar if (func_num == 1) { 38122a991c21SManish Rangankar addr = NVRAM_PORT0_BOOT_MODE; 38132a991c21SManish Rangankar pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 38142a991c21SManish Rangankar sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 38152a991c21SManish Rangankar } else if (func_num == 3) { 38162a991c21SManish Rangankar addr = NVRAM_PORT1_BOOT_MODE; 38172a991c21SManish Rangankar pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 38182a991c21SManish Rangankar sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 38192a991c21SManish Rangankar } else { 38202a991c21SManish Rangankar ret = QLA_ERROR; 38212a991c21SManish Rangankar goto exit_boot_info; 38222a991c21SManish Rangankar } 38232a991c21SManish Rangankar 38242a991c21SManish Rangankar /* Check Boot Mode */ 38252a991c21SManish Rangankar val = rd_nvram_byte(ha, addr); 38262a991c21SManish Rangankar if (!(val & 0x07)) { 3827e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 3828e8fb00e0SManish Rangankar "options : 0x%x\n", __func__, val)); 38292a991c21SManish Rangankar ret = QLA_ERROR; 38302a991c21SManish Rangankar goto exit_boot_info; 38312a991c21SManish Rangankar } 38322a991c21SManish Rangankar 38332a991c21SManish Rangankar /* get primary valid target index */ 38342a991c21SManish Rangankar val = rd_nvram_byte(ha, pri_addr); 38352a991c21SManish Rangankar if (val & BIT_7) 38362a991c21SManish Rangankar ddb_index[0] = (val & 0x7f); 38372a991c21SManish Rangankar 38382a991c21SManish Rangankar /* get secondary valid target index */ 38392a991c21SManish Rangankar val = rd_nvram_byte(ha, sec_addr); 38402a991c21SManish Rangankar if (val & BIT_7) 38412a991c21SManish Rangankar ddb_index[1] = (val & 0x7f); 38422a991c21SManish Rangankar 38432a991c21SManish Rangankar } else if (is_qla8022(ha)) { 38442a991c21SManish Rangankar buf = dma_alloc_coherent(&ha->pdev->dev, size, 38452a991c21SManish Rangankar &buf_dma, GFP_KERNEL); 38462a991c21SManish Rangankar if (!buf) { 38472a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 38482a991c21SManish Rangankar "%s: Unable to allocate dma buffer\n", 38492a991c21SManish Rangankar __func__)); 38502a991c21SManish Rangankar ret = QLA_ERROR; 38512a991c21SManish Rangankar goto exit_boot_info; 38522a991c21SManish Rangankar } 38532a991c21SManish Rangankar 38542a991c21SManish Rangankar if (ha->port_num == 0) 38552a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT0; 38562a991c21SManish Rangankar else if (ha->port_num == 1) 38572a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT1; 38582a991c21SManish Rangankar else { 38592a991c21SManish Rangankar ret = QLA_ERROR; 38602a991c21SManish Rangankar goto exit_boot_info_free; 38612a991c21SManish Rangankar } 38622a991c21SManish Rangankar addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 38632a991c21SManish Rangankar offset; 38642a991c21SManish Rangankar if (qla4xxx_get_flash(ha, buf_dma, addr, 38652a991c21SManish Rangankar 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 38662a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 38672a991c21SManish Rangankar "failed\n", ha->host_no, __func__)); 38682a991c21SManish Rangankar ret = QLA_ERROR; 38692a991c21SManish Rangankar goto exit_boot_info_free; 38702a991c21SManish Rangankar } 38712a991c21SManish Rangankar /* Check Boot Mode */ 38722a991c21SManish Rangankar if (!(buf[1] & 0x07)) { 3873e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 3874e8fb00e0SManish Rangankar " : 0x%x\n", buf[1])); 38752a991c21SManish Rangankar ret = QLA_ERROR; 38762a991c21SManish Rangankar goto exit_boot_info_free; 38772a991c21SManish Rangankar } 38782a991c21SManish Rangankar 38792a991c21SManish Rangankar /* get primary valid target index */ 38802a991c21SManish Rangankar if (buf[2] & BIT_7) 38812a991c21SManish Rangankar ddb_index[0] = buf[2] & 0x7f; 38822a991c21SManish Rangankar 38832a991c21SManish Rangankar /* get secondary valid target index */ 38842a991c21SManish Rangankar if (buf[11] & BIT_7) 38852a991c21SManish Rangankar ddb_index[1] = buf[11] & 0x7f; 38862a991c21SManish Rangankar } else { 38872a991c21SManish Rangankar ret = QLA_ERROR; 38882a991c21SManish Rangankar goto exit_boot_info; 38892a991c21SManish Rangankar } 38902a991c21SManish Rangankar 38912a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 38922a991c21SManish Rangankar " target ID %d\n", __func__, ddb_index[0], 38932a991c21SManish Rangankar ddb_index[1])); 38942a991c21SManish Rangankar 38952a991c21SManish Rangankar exit_boot_info_free: 38962a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 38972a991c21SManish Rangankar exit_boot_info: 389820e835b4SLalit Chandivade ha->pri_ddb_idx = ddb_index[0]; 389920e835b4SLalit Chandivade ha->sec_ddb_idx = ddb_index[1]; 39002a991c21SManish Rangankar return ret; 39012a991c21SManish Rangankar } 39022a991c21SManish Rangankar 390328deb45cSLalit Chandivade /** 390428deb45cSLalit Chandivade * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 390528deb45cSLalit Chandivade * @ha: pointer to adapter structure 390628deb45cSLalit Chandivade * @username: CHAP username to be returned 390728deb45cSLalit Chandivade * @password: CHAP password to be returned 390828deb45cSLalit Chandivade * 390928deb45cSLalit Chandivade * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 391028deb45cSLalit Chandivade * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 391128deb45cSLalit Chandivade * So from the CHAP cache find the first BIDI CHAP entry and set it 391228deb45cSLalit Chandivade * to the boot record in sysfs. 391328deb45cSLalit Chandivade **/ 391428deb45cSLalit Chandivade static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 391528deb45cSLalit Chandivade char *password) 391628deb45cSLalit Chandivade { 391728deb45cSLalit Chandivade int i, ret = -EINVAL; 391828deb45cSLalit Chandivade int max_chap_entries = 0; 391928deb45cSLalit Chandivade struct ql4_chap_table *chap_table; 392028deb45cSLalit Chandivade 392128deb45cSLalit Chandivade if (is_qla8022(ha)) 392228deb45cSLalit Chandivade max_chap_entries = (ha->hw.flt_chap_size / 2) / 392328deb45cSLalit Chandivade sizeof(struct ql4_chap_table); 392428deb45cSLalit Chandivade else 392528deb45cSLalit Chandivade max_chap_entries = MAX_CHAP_ENTRIES_40XX; 392628deb45cSLalit Chandivade 392728deb45cSLalit Chandivade if (!ha->chap_list) { 392828deb45cSLalit Chandivade ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 392928deb45cSLalit Chandivade return ret; 393028deb45cSLalit Chandivade } 393128deb45cSLalit Chandivade 393228deb45cSLalit Chandivade mutex_lock(&ha->chap_sem); 393328deb45cSLalit Chandivade for (i = 0; i < max_chap_entries; i++) { 393428deb45cSLalit Chandivade chap_table = (struct ql4_chap_table *)ha->chap_list + i; 393528deb45cSLalit Chandivade if (chap_table->cookie != 393628deb45cSLalit Chandivade __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 393728deb45cSLalit Chandivade continue; 393828deb45cSLalit Chandivade } 393928deb45cSLalit Chandivade 394028deb45cSLalit Chandivade if (chap_table->flags & BIT_7) /* local */ 394128deb45cSLalit Chandivade continue; 394228deb45cSLalit Chandivade 394328deb45cSLalit Chandivade if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 394428deb45cSLalit Chandivade continue; 394528deb45cSLalit Chandivade 394628deb45cSLalit Chandivade strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 394728deb45cSLalit Chandivade strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 394828deb45cSLalit Chandivade ret = 0; 394928deb45cSLalit Chandivade break; 395028deb45cSLalit Chandivade } 395128deb45cSLalit Chandivade mutex_unlock(&ha->chap_sem); 395228deb45cSLalit Chandivade 395328deb45cSLalit Chandivade return ret; 395428deb45cSLalit Chandivade } 395528deb45cSLalit Chandivade 395628deb45cSLalit Chandivade 39572a991c21SManish Rangankar static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 39582a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess, 39592a991c21SManish Rangankar uint16_t ddb_index) 39602a991c21SManish Rangankar { 39612a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 39622a991c21SManish Rangankar struct dev_db_entry *fw_ddb_entry; 39632a991c21SManish Rangankar dma_addr_t fw_ddb_entry_dma; 39642a991c21SManish Rangankar uint16_t idx; 39652a991c21SManish Rangankar uint16_t options; 39662a991c21SManish Rangankar int ret = QLA_SUCCESS; 39672a991c21SManish Rangankar 39682a991c21SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 39692a991c21SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 39702a991c21SManish Rangankar if (!fw_ddb_entry) { 39712a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 39722a991c21SManish Rangankar "%s: Unable to allocate dma buffer.\n", 39732a991c21SManish Rangankar __func__)); 39742a991c21SManish Rangankar ret = QLA_ERROR; 39752a991c21SManish Rangankar return ret; 39762a991c21SManish Rangankar } 39772a991c21SManish Rangankar 39782a991c21SManish Rangankar if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 39792a991c21SManish Rangankar fw_ddb_entry_dma, ddb_index)) { 3980e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 3981e8fb00e0SManish Rangankar "index [%d]\n", __func__, ddb_index)); 39822a991c21SManish Rangankar ret = QLA_ERROR; 39832a991c21SManish Rangankar goto exit_boot_target; 39842a991c21SManish Rangankar } 39852a991c21SManish Rangankar 39862a991c21SManish Rangankar /* Update target name and IP from DDB */ 39872a991c21SManish Rangankar memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 39882a991c21SManish Rangankar min(sizeof(boot_sess->target_name), 39892a991c21SManish Rangankar sizeof(fw_ddb_entry->iscsi_name))); 39902a991c21SManish Rangankar 39912a991c21SManish Rangankar options = le16_to_cpu(fw_ddb_entry->options); 39922a991c21SManish Rangankar if (options & DDB_OPT_IPV6_DEVICE) { 39932a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 39942a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 39952a991c21SManish Rangankar } else { 39962a991c21SManish Rangankar boot_conn->dest_ipaddr.ip_type = 0x1; 39972a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 39982a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 39992a991c21SManish Rangankar } 40002a991c21SManish Rangankar 40012a991c21SManish Rangankar boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 40022a991c21SManish Rangankar 40032a991c21SManish Rangankar /* update chap information */ 40042a991c21SManish Rangankar idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 40052a991c21SManish Rangankar 40062a991c21SManish Rangankar if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 40072a991c21SManish Rangankar 40082a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 40092a991c21SManish Rangankar 40102a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 40112a991c21SManish Rangankar target_chap_name, 40122a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret, 40132a991c21SManish Rangankar idx); 40142a991c21SManish Rangankar if (ret) { 40152a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 40162a991c21SManish Rangankar ret = QLA_ERROR; 40172a991c21SManish Rangankar goto exit_boot_target; 40182a991c21SManish Rangankar } 40192a991c21SManish Rangankar 40202a991c21SManish Rangankar boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 40212a991c21SManish Rangankar boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 40222a991c21SManish Rangankar } 40232a991c21SManish Rangankar 40242a991c21SManish Rangankar if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 40252a991c21SManish Rangankar 40262a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 40272a991c21SManish Rangankar 402828deb45cSLalit Chandivade ret = qla4xxx_get_bidi_chap(ha, 402928deb45cSLalit Chandivade (char *)&boot_conn->chap.intr_chap_name, 403028deb45cSLalit Chandivade (char *)&boot_conn->chap.intr_secret); 403128deb45cSLalit Chandivade 40322a991c21SManish Rangankar if (ret) { 40332a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 40342a991c21SManish Rangankar ret = QLA_ERROR; 40352a991c21SManish Rangankar goto exit_boot_target; 40362a991c21SManish Rangankar } 40372a991c21SManish Rangankar 40382a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 40392a991c21SManish Rangankar boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 40402a991c21SManish Rangankar } 40412a991c21SManish Rangankar 40422a991c21SManish Rangankar exit_boot_target: 40432a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 40442a991c21SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 40452a991c21SManish Rangankar return ret; 40462a991c21SManish Rangankar } 40472a991c21SManish Rangankar 40482a991c21SManish Rangankar static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 40492a991c21SManish Rangankar { 40502a991c21SManish Rangankar uint16_t ddb_index[2]; 40518de5b958SLalit Chandivade int ret = QLA_ERROR; 40528de5b958SLalit Chandivade int rval; 40532a991c21SManish Rangankar 40542a991c21SManish Rangankar memset(ddb_index, 0, sizeof(ddb_index)); 40558de5b958SLalit Chandivade ddb_index[0] = 0xffff; 40568de5b958SLalit Chandivade ddb_index[1] = 0xffff; 40572a991c21SManish Rangankar ret = get_fw_boot_info(ha, ddb_index); 40582a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 4059e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 4060e8fb00e0SManish Rangankar "%s: No boot target configured.\n", __func__)); 40612a991c21SManish Rangankar return ret; 40622a991c21SManish Rangankar } 40632a991c21SManish Rangankar 406413483730SMike Christie if (ql4xdisablesysfsboot) 406513483730SMike Christie return QLA_SUCCESS; 406613483730SMike Christie 40678de5b958SLalit Chandivade if (ddb_index[0] == 0xffff) 40688de5b958SLalit Chandivade goto sec_target; 40698de5b958SLalit Chandivade 40708de5b958SLalit Chandivade rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 40712a991c21SManish Rangankar ddb_index[0]); 40728de5b958SLalit Chandivade if (rval != QLA_SUCCESS) { 4073e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 4074e8fb00e0SManish Rangankar "configured\n", __func__)); 40758de5b958SLalit Chandivade } else 40768de5b958SLalit Chandivade ret = QLA_SUCCESS; 40772a991c21SManish Rangankar 40788de5b958SLalit Chandivade sec_target: 40798de5b958SLalit Chandivade if (ddb_index[1] == 0xffff) 40808de5b958SLalit Chandivade goto exit_get_boot_info; 40818de5b958SLalit Chandivade 40828de5b958SLalit Chandivade rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 40832a991c21SManish Rangankar ddb_index[1]); 40848de5b958SLalit Chandivade if (rval != QLA_SUCCESS) { 4085e8fb00e0SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 4086e8fb00e0SManish Rangankar " configured\n", __func__)); 40878de5b958SLalit Chandivade } else 40888de5b958SLalit Chandivade ret = QLA_SUCCESS; 40898de5b958SLalit Chandivade 40908de5b958SLalit Chandivade exit_get_boot_info: 40912a991c21SManish Rangankar return ret; 40922a991c21SManish Rangankar } 40932a991c21SManish Rangankar 40942a991c21SManish Rangankar static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 40952a991c21SManish Rangankar { 40962a991c21SManish Rangankar struct iscsi_boot_kobj *boot_kobj; 40972a991c21SManish Rangankar 40982a991c21SManish Rangankar if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 409913483730SMike Christie return QLA_ERROR; 410013483730SMike Christie 410113483730SMike Christie if (ql4xdisablesysfsboot) { 410213483730SMike Christie ql4_printk(KERN_INFO, ha, 410313483730SMike Christie "%s: syfsboot disabled - driver will trigger login" 410413483730SMike Christie "and publish session for discovery .\n", __func__); 410513483730SMike Christie return QLA_SUCCESS; 410613483730SMike Christie } 410713483730SMike Christie 41082a991c21SManish Rangankar 41092a991c21SManish Rangankar ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 41102a991c21SManish Rangankar if (!ha->boot_kset) 41112a991c21SManish Rangankar goto kset_free; 41122a991c21SManish Rangankar 41132a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 41142a991c21SManish Rangankar goto kset_free; 41152a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 41162a991c21SManish Rangankar qla4xxx_show_boot_tgt_pri_info, 41172a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 41182a991c21SManish Rangankar qla4xxx_boot_release); 41192a991c21SManish Rangankar if (!boot_kobj) 41202a991c21SManish Rangankar goto put_host; 41212a991c21SManish Rangankar 41222a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 41232a991c21SManish Rangankar goto kset_free; 41242a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 41252a991c21SManish Rangankar qla4xxx_show_boot_tgt_sec_info, 41262a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 41272a991c21SManish Rangankar qla4xxx_boot_release); 41282a991c21SManish Rangankar if (!boot_kobj) 41292a991c21SManish Rangankar goto put_host; 41302a991c21SManish Rangankar 41312a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 41322a991c21SManish Rangankar goto kset_free; 41332a991c21SManish Rangankar boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 41342a991c21SManish Rangankar qla4xxx_show_boot_ini_info, 41352a991c21SManish Rangankar qla4xxx_ini_get_attr_visibility, 41362a991c21SManish Rangankar qla4xxx_boot_release); 41372a991c21SManish Rangankar if (!boot_kobj) 41382a991c21SManish Rangankar goto put_host; 41392a991c21SManish Rangankar 41402a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 41412a991c21SManish Rangankar goto kset_free; 41422a991c21SManish Rangankar boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 41432a991c21SManish Rangankar qla4xxx_show_boot_eth_info, 41442a991c21SManish Rangankar qla4xxx_eth_get_attr_visibility, 41452a991c21SManish Rangankar qla4xxx_boot_release); 41462a991c21SManish Rangankar if (!boot_kobj) 41472a991c21SManish Rangankar goto put_host; 41482a991c21SManish Rangankar 414913483730SMike Christie return QLA_SUCCESS; 41502a991c21SManish Rangankar 41512a991c21SManish Rangankar put_host: 41522a991c21SManish Rangankar scsi_host_put(ha->host); 41532a991c21SManish Rangankar kset_free: 41542a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 41552a991c21SManish Rangankar return -ENOMEM; 41562a991c21SManish Rangankar } 41572a991c21SManish Rangankar 41584549415aSLalit Chandivade 41594549415aSLalit Chandivade /** 41604549415aSLalit Chandivade * qla4xxx_create chap_list - Create CHAP list from FLASH 41614549415aSLalit Chandivade * @ha: pointer to adapter structure 41624549415aSLalit Chandivade * 41634549415aSLalit Chandivade * Read flash and make a list of CHAP entries, during login when a CHAP entry 41644549415aSLalit Chandivade * is received, it will be checked in this list. If entry exist then the CHAP 41654549415aSLalit Chandivade * entry index is set in the DDB. If CHAP entry does not exist in this list 41664549415aSLalit Chandivade * then a new entry is added in FLASH in CHAP table and the index obtained is 41674549415aSLalit Chandivade * used in the DDB. 41684549415aSLalit Chandivade **/ 41694549415aSLalit Chandivade static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 41704549415aSLalit Chandivade { 41714549415aSLalit Chandivade int rval = 0; 41724549415aSLalit Chandivade uint8_t *chap_flash_data = NULL; 41734549415aSLalit Chandivade uint32_t offset; 41744549415aSLalit Chandivade dma_addr_t chap_dma; 41754549415aSLalit Chandivade uint32_t chap_size = 0; 41764549415aSLalit Chandivade 41774549415aSLalit Chandivade if (is_qla40XX(ha)) 41784549415aSLalit Chandivade chap_size = MAX_CHAP_ENTRIES_40XX * 41794549415aSLalit Chandivade sizeof(struct ql4_chap_table); 41804549415aSLalit Chandivade else /* Single region contains CHAP info for both 41814549415aSLalit Chandivade * ports which is divided into half for each port. 41824549415aSLalit Chandivade */ 41834549415aSLalit Chandivade chap_size = ha->hw.flt_chap_size / 2; 41844549415aSLalit Chandivade 41854549415aSLalit Chandivade chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 41864549415aSLalit Chandivade &chap_dma, GFP_KERNEL); 41874549415aSLalit Chandivade if (!chap_flash_data) { 41884549415aSLalit Chandivade ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 41894549415aSLalit Chandivade return; 41904549415aSLalit Chandivade } 41914549415aSLalit Chandivade if (is_qla40XX(ha)) 41924549415aSLalit Chandivade offset = FLASH_CHAP_OFFSET; 41934549415aSLalit Chandivade else { 41944549415aSLalit Chandivade offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 41954549415aSLalit Chandivade if (ha->port_num == 1) 41964549415aSLalit Chandivade offset += chap_size; 41974549415aSLalit Chandivade } 41984549415aSLalit Chandivade 41994549415aSLalit Chandivade rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 42004549415aSLalit Chandivade if (rval != QLA_SUCCESS) 42014549415aSLalit Chandivade goto exit_chap_list; 42024549415aSLalit Chandivade 42034549415aSLalit Chandivade if (ha->chap_list == NULL) 42044549415aSLalit Chandivade ha->chap_list = vmalloc(chap_size); 42054549415aSLalit Chandivade if (ha->chap_list == NULL) { 42064549415aSLalit Chandivade ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 42074549415aSLalit Chandivade goto exit_chap_list; 42084549415aSLalit Chandivade } 42094549415aSLalit Chandivade 42104549415aSLalit Chandivade memcpy(ha->chap_list, chap_flash_data, chap_size); 42114549415aSLalit Chandivade 42124549415aSLalit Chandivade exit_chap_list: 42134549415aSLalit Chandivade dma_free_coherent(&ha->pdev->dev, chap_size, 42144549415aSLalit Chandivade chap_flash_data, chap_dma); 421513483730SMike Christie } 421613483730SMike Christie 421713483730SMike Christie static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 421813483730SMike Christie struct ql4_tuple_ddb *tddb) 421913483730SMike Christie { 422013483730SMike Christie struct scsi_qla_host *ha; 422113483730SMike Christie struct iscsi_cls_session *cls_sess; 422213483730SMike Christie struct iscsi_cls_conn *cls_conn; 422313483730SMike Christie struct iscsi_session *sess; 422413483730SMike Christie struct iscsi_conn *conn; 422513483730SMike Christie 422613483730SMike Christie DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 422713483730SMike Christie ha = ddb_entry->ha; 422813483730SMike Christie cls_sess = ddb_entry->sess; 422913483730SMike Christie sess = cls_sess->dd_data; 423013483730SMike Christie cls_conn = ddb_entry->conn; 423113483730SMike Christie conn = cls_conn->dd_data; 423213483730SMike Christie 423313483730SMike Christie tddb->tpgt = sess->tpgt; 423413483730SMike Christie tddb->port = conn->persistent_port; 423513483730SMike Christie strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 423613483730SMike Christie strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 423713483730SMike Christie } 423813483730SMike Christie 423913483730SMike Christie static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 424013483730SMike Christie struct ql4_tuple_ddb *tddb) 424113483730SMike Christie { 424213483730SMike Christie uint16_t options = 0; 424313483730SMike Christie 424413483730SMike Christie tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 424513483730SMike Christie memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 424613483730SMike Christie min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 424713483730SMike Christie 424813483730SMike Christie options = le16_to_cpu(fw_ddb_entry->options); 424913483730SMike Christie if (options & DDB_OPT_IPV6_DEVICE) 425013483730SMike Christie sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 425113483730SMike Christie else 425213483730SMike Christie sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 425313483730SMike Christie 425413483730SMike Christie tddb->port = le16_to_cpu(fw_ddb_entry->port); 425513483730SMike Christie } 425613483730SMike Christie 425713483730SMike Christie static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 425813483730SMike Christie struct ql4_tuple_ddb *old_tddb, 425913483730SMike Christie struct ql4_tuple_ddb *new_tddb) 426013483730SMike Christie { 426113483730SMike Christie if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 426213483730SMike Christie return QLA_ERROR; 426313483730SMike Christie 426413483730SMike Christie if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 426513483730SMike Christie return QLA_ERROR; 426613483730SMike Christie 426713483730SMike Christie if (old_tddb->port != new_tddb->port) 426813483730SMike Christie return QLA_ERROR; 426913483730SMike Christie 427013483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 427113483730SMike Christie "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 427213483730SMike Christie old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 427313483730SMike Christie old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 427413483730SMike Christie new_tddb->ip_addr, new_tddb->iscsi_name)); 427513483730SMike Christie 427613483730SMike Christie return QLA_SUCCESS; 427713483730SMike Christie } 427813483730SMike Christie 427913483730SMike Christie static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 428013483730SMike Christie struct dev_db_entry *fw_ddb_entry) 428113483730SMike Christie { 428213483730SMike Christie struct ddb_entry *ddb_entry; 428313483730SMike Christie struct ql4_tuple_ddb *fw_tddb = NULL; 428413483730SMike Christie struct ql4_tuple_ddb *tmp_tddb = NULL; 428513483730SMike Christie int idx; 428613483730SMike Christie int ret = QLA_ERROR; 428713483730SMike Christie 428813483730SMike Christie fw_tddb = vzalloc(sizeof(*fw_tddb)); 428913483730SMike Christie if (!fw_tddb) { 429013483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 429113483730SMike Christie "Memory Allocation failed.\n")); 429213483730SMike Christie ret = QLA_SUCCESS; 429313483730SMike Christie goto exit_check; 429413483730SMike Christie } 429513483730SMike Christie 429613483730SMike Christie tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 429713483730SMike Christie if (!tmp_tddb) { 429813483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 429913483730SMike Christie "Memory Allocation failed.\n")); 430013483730SMike Christie ret = QLA_SUCCESS; 430113483730SMike Christie goto exit_check; 430213483730SMike Christie } 430313483730SMike Christie 430413483730SMike Christie qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb); 430513483730SMike Christie 430613483730SMike Christie for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 430713483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 430813483730SMike Christie if (ddb_entry == NULL) 430913483730SMike Christie continue; 431013483730SMike Christie 431113483730SMike Christie qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 431213483730SMike Christie if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) { 431313483730SMike Christie ret = QLA_SUCCESS; /* found */ 431413483730SMike Christie goto exit_check; 431513483730SMike Christie } 431613483730SMike Christie } 431713483730SMike Christie 431813483730SMike Christie exit_check: 431913483730SMike Christie if (fw_tddb) 432013483730SMike Christie vfree(fw_tddb); 432113483730SMike Christie if (tmp_tddb) 432213483730SMike Christie vfree(tmp_tddb); 432313483730SMike Christie return ret; 432413483730SMike Christie } 432513483730SMike Christie 432613483730SMike Christie static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 432713483730SMike Christie struct list_head *list_nt, 432813483730SMike Christie struct dev_db_entry *fw_ddb_entry) 432913483730SMike Christie { 433013483730SMike Christie struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 433113483730SMike Christie struct ql4_tuple_ddb *fw_tddb = NULL; 433213483730SMike Christie struct ql4_tuple_ddb *tmp_tddb = NULL; 433313483730SMike Christie int ret = QLA_ERROR; 433413483730SMike Christie 433513483730SMike Christie fw_tddb = vzalloc(sizeof(*fw_tddb)); 433613483730SMike Christie if (!fw_tddb) { 433713483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 433813483730SMike Christie "Memory Allocation failed.\n")); 433913483730SMike Christie ret = QLA_SUCCESS; 434013483730SMike Christie goto exit_check; 434113483730SMike Christie } 434213483730SMike Christie 434313483730SMike Christie tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 434413483730SMike Christie if (!tmp_tddb) { 434513483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 434613483730SMike Christie "Memory Allocation failed.\n")); 434713483730SMike Christie ret = QLA_SUCCESS; 434813483730SMike Christie goto exit_check; 434913483730SMike Christie } 435013483730SMike Christie 435113483730SMike Christie qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb); 435213483730SMike Christie 435313483730SMike Christie list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 435413483730SMike Christie qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb); 435513483730SMike Christie if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) { 435613483730SMike Christie ret = QLA_SUCCESS; /* found */ 435713483730SMike Christie goto exit_check; 435813483730SMike Christie } 435913483730SMike Christie } 436013483730SMike Christie 436113483730SMike Christie exit_check: 436213483730SMike Christie if (fw_tddb) 436313483730SMike Christie vfree(fw_tddb); 436413483730SMike Christie if (tmp_tddb) 436513483730SMike Christie vfree(tmp_tddb); 436613483730SMike Christie return ret; 436713483730SMike Christie } 436813483730SMike Christie 43694a4bc2e9SLalit Chandivade static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 437013483730SMike Christie { 43714a4bc2e9SLalit Chandivade struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 437213483730SMike Christie 43734a4bc2e9SLalit Chandivade list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 43744a4bc2e9SLalit Chandivade list_del_init(&ddb_idx->list); 43754a4bc2e9SLalit Chandivade vfree(ddb_idx); 437613483730SMike Christie } 437713483730SMike Christie } 437813483730SMike Christie 437913483730SMike Christie static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 438013483730SMike Christie struct dev_db_entry *fw_ddb_entry) 438113483730SMike Christie { 438213483730SMike Christie struct iscsi_endpoint *ep; 438313483730SMike Christie struct sockaddr_in *addr; 438413483730SMike Christie struct sockaddr_in6 *addr6; 438513483730SMike Christie struct sockaddr *dst_addr; 438613483730SMike Christie char *ip; 438713483730SMike Christie 438813483730SMike Christie /* TODO: need to destroy on unload iscsi_endpoint*/ 438913483730SMike Christie dst_addr = vmalloc(sizeof(*dst_addr)); 439013483730SMike Christie if (!dst_addr) 439113483730SMike Christie return NULL; 439213483730SMike Christie 439313483730SMike Christie if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 439413483730SMike Christie dst_addr->sa_family = AF_INET6; 439513483730SMike Christie addr6 = (struct sockaddr_in6 *)dst_addr; 439613483730SMike Christie ip = (char *)&addr6->sin6_addr; 439713483730SMike Christie memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 439813483730SMike Christie addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 439913483730SMike Christie 440013483730SMike Christie } else { 440113483730SMike Christie dst_addr->sa_family = AF_INET; 440213483730SMike Christie addr = (struct sockaddr_in *)dst_addr; 440313483730SMike Christie ip = (char *)&addr->sin_addr; 440413483730SMike Christie memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 440513483730SMike Christie addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 440613483730SMike Christie } 440713483730SMike Christie 440813483730SMike Christie ep = qla4xxx_ep_connect(ha->host, dst_addr, 0); 440913483730SMike Christie vfree(dst_addr); 441013483730SMike Christie return ep; 441113483730SMike Christie } 441213483730SMike Christie 441313483730SMike Christie static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 441413483730SMike Christie { 441513483730SMike Christie if (ql4xdisablesysfsboot) 441613483730SMike Christie return QLA_SUCCESS; 441713483730SMike Christie if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 441813483730SMike Christie return QLA_ERROR; 441913483730SMike Christie return QLA_SUCCESS; 442013483730SMike Christie } 442113483730SMike Christie 442213483730SMike Christie static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 442313483730SMike Christie struct ddb_entry *ddb_entry) 442413483730SMike Christie { 4425c28eaacaSNilesh Javali uint16_t def_timeout; 4426c28eaacaSNilesh Javali 442713483730SMike Christie ddb_entry->ddb_type = FLASH_DDB; 442813483730SMike Christie ddb_entry->fw_ddb_index = INVALID_ENTRY; 442913483730SMike Christie ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 443013483730SMike Christie ddb_entry->ha = ha; 443113483730SMike Christie ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 443213483730SMike Christie ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 443313483730SMike Christie 443413483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 443513483730SMike Christie atomic_set(&ddb_entry->relogin_timer, 0); 443613483730SMike Christie atomic_set(&ddb_entry->relogin_retry_count, 0); 4437c28eaacaSNilesh Javali def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 443813483730SMike Christie ddb_entry->default_relogin_timeout = 4439c28eaacaSNilesh Javali (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 4440c28eaacaSNilesh Javali def_timeout : LOGIN_TOV; 444113483730SMike Christie ddb_entry->default_time2wait = 444213483730SMike Christie le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 444313483730SMike Christie } 444413483730SMike Christie 444513483730SMike Christie static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 444613483730SMike Christie { 444713483730SMike Christie uint32_t idx = 0; 444813483730SMike Christie uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 444913483730SMike Christie uint32_t sts[MBOX_REG_COUNT]; 445013483730SMike Christie uint32_t ip_state; 445113483730SMike Christie unsigned long wtime; 445213483730SMike Christie int ret; 445313483730SMike Christie 445413483730SMike Christie wtime = jiffies + (HZ * IP_CONFIG_TOV); 445513483730SMike Christie do { 445613483730SMike Christie for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 445713483730SMike Christie if (ip_idx[idx] == -1) 445813483730SMike Christie continue; 445913483730SMike Christie 446013483730SMike Christie ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 446113483730SMike Christie 446213483730SMike Christie if (ret == QLA_ERROR) { 446313483730SMike Christie ip_idx[idx] = -1; 446413483730SMike Christie continue; 446513483730SMike Christie } 446613483730SMike Christie 446713483730SMike Christie ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 446813483730SMike Christie 446913483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 447013483730SMike Christie "Waiting for IP state for idx = %d, state = 0x%x\n", 447113483730SMike Christie ip_idx[idx], ip_state)); 447213483730SMike Christie if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 447313483730SMike Christie ip_state == IP_ADDRSTATE_INVALID || 447413483730SMike Christie ip_state == IP_ADDRSTATE_PREFERRED || 447513483730SMike Christie ip_state == IP_ADDRSTATE_DEPRICATED || 447613483730SMike Christie ip_state == IP_ADDRSTATE_DISABLING) 447713483730SMike Christie ip_idx[idx] = -1; 447813483730SMike Christie } 447913483730SMike Christie 448013483730SMike Christie /* Break if all IP states checked */ 448113483730SMike Christie if ((ip_idx[0] == -1) && 448213483730SMike Christie (ip_idx[1] == -1) && 448313483730SMike Christie (ip_idx[2] == -1) && 448413483730SMike Christie (ip_idx[3] == -1)) 448513483730SMike Christie break; 448613483730SMike Christie schedule_timeout_uninterruptible(HZ); 448713483730SMike Christie } while (time_after(wtime, jiffies)); 448813483730SMike Christie } 448913483730SMike Christie 44904a4bc2e9SLalit Chandivade static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 44914a4bc2e9SLalit Chandivade struct list_head *list_st) 449213483730SMike Christie { 44934a4bc2e9SLalit Chandivade struct qla_ddb_index *st_ddb_idx; 449413483730SMike Christie int max_ddbs; 44954a4bc2e9SLalit Chandivade int fw_idx_size; 44964a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry; 44974a4bc2e9SLalit Chandivade dma_addr_t fw_ddb_dma; 449813483730SMike Christie int ret; 449913483730SMike Christie uint32_t idx = 0, next_idx = 0; 450013483730SMike Christie uint32_t state = 0, conn_err = 0; 45014a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 450213483730SMike Christie 450313483730SMike Christie fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 450413483730SMike Christie &fw_ddb_dma); 450513483730SMike Christie if (fw_ddb_entry == NULL) { 450613483730SMike Christie DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 45074a4bc2e9SLalit Chandivade goto exit_st_list; 450813483730SMike Christie } 450913483730SMike Christie 45104a4bc2e9SLalit Chandivade max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 45114a4bc2e9SLalit Chandivade MAX_DEV_DB_ENTRIES; 451213483730SMike Christie fw_idx_size = sizeof(struct qla_ddb_index); 451313483730SMike Christie 451413483730SMike Christie for (idx = 0; idx < max_ddbs; idx = next_idx) { 45154a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 45164a4bc2e9SLalit Chandivade NULL, &next_idx, &state, 45174a4bc2e9SLalit Chandivade &conn_err, NULL, &conn_id); 451813483730SMike Christie if (ret == QLA_ERROR) 451913483730SMike Christie break; 452013483730SMike Christie 4521981c982cSLalit Chandivade /* Ignore DDB if invalid state (unassigned) */ 4522981c982cSLalit Chandivade if (state == DDB_DS_UNASSIGNED) 4523981c982cSLalit Chandivade goto continue_next_st; 4524981c982cSLalit Chandivade 452513483730SMike Christie /* Check if ST, add to the list_st */ 452613483730SMike Christie if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 452713483730SMike Christie goto continue_next_st; 452813483730SMike Christie 452913483730SMike Christie st_ddb_idx = vzalloc(fw_idx_size); 453013483730SMike Christie if (!st_ddb_idx) 453113483730SMike Christie break; 453213483730SMike Christie 453313483730SMike Christie st_ddb_idx->fw_ddb_idx = idx; 453413483730SMike Christie 45354a4bc2e9SLalit Chandivade list_add_tail(&st_ddb_idx->list, list_st); 453613483730SMike Christie continue_next_st: 453713483730SMike Christie if (next_idx == 0) 453813483730SMike Christie break; 453913483730SMike Christie } 454013483730SMike Christie 45414a4bc2e9SLalit Chandivade exit_st_list: 45424a4bc2e9SLalit Chandivade if (fw_ddb_entry) 45434a4bc2e9SLalit Chandivade dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 45444a4bc2e9SLalit Chandivade } 45454a4bc2e9SLalit Chandivade 45464a4bc2e9SLalit Chandivade /** 45474a4bc2e9SLalit Chandivade * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 45484a4bc2e9SLalit Chandivade * @ha: pointer to adapter structure 45494a4bc2e9SLalit Chandivade * @list_ddb: List from which failed ddb to be removed 45504a4bc2e9SLalit Chandivade * 45514a4bc2e9SLalit Chandivade * Iterate over the list of DDBs and find and remove DDBs that are either in 45524a4bc2e9SLalit Chandivade * no connection active state or failed state 45534a4bc2e9SLalit Chandivade **/ 45544a4bc2e9SLalit Chandivade static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 45554a4bc2e9SLalit Chandivade struct list_head *list_ddb) 45564a4bc2e9SLalit Chandivade { 45574a4bc2e9SLalit Chandivade struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 45584a4bc2e9SLalit Chandivade uint32_t next_idx = 0; 45594a4bc2e9SLalit Chandivade uint32_t state = 0, conn_err = 0; 45604a4bc2e9SLalit Chandivade int ret; 45614a4bc2e9SLalit Chandivade 45624a4bc2e9SLalit Chandivade list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 45634a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 45644a4bc2e9SLalit Chandivade NULL, 0, NULL, &next_idx, &state, 45654a4bc2e9SLalit Chandivade &conn_err, NULL, NULL); 45664a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 45674a4bc2e9SLalit Chandivade continue; 45684a4bc2e9SLalit Chandivade 45694a4bc2e9SLalit Chandivade if (state == DDB_DS_NO_CONNECTION_ACTIVE || 45704a4bc2e9SLalit Chandivade state == DDB_DS_SESSION_FAILED) { 45714a4bc2e9SLalit Chandivade list_del_init(&ddb_idx->list); 45724a4bc2e9SLalit Chandivade vfree(ddb_idx); 45734a4bc2e9SLalit Chandivade } 45744a4bc2e9SLalit Chandivade } 45754a4bc2e9SLalit Chandivade } 45764a4bc2e9SLalit Chandivade 45774a4bc2e9SLalit Chandivade static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 45784a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry, 45794a4bc2e9SLalit Chandivade int is_reset) 45804a4bc2e9SLalit Chandivade { 45814a4bc2e9SLalit Chandivade struct iscsi_cls_session *cls_sess; 45824a4bc2e9SLalit Chandivade struct iscsi_session *sess; 45834a4bc2e9SLalit Chandivade struct iscsi_cls_conn *cls_conn; 45844a4bc2e9SLalit Chandivade struct iscsi_endpoint *ep; 45854a4bc2e9SLalit Chandivade uint16_t cmds_max = 32; 45864a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 45874a4bc2e9SLalit Chandivade uint32_t initial_cmdsn = 0; 45884a4bc2e9SLalit Chandivade int ret = QLA_SUCCESS; 45894a4bc2e9SLalit Chandivade 45904a4bc2e9SLalit Chandivade struct ddb_entry *ddb_entry = NULL; 45914a4bc2e9SLalit Chandivade 45924a4bc2e9SLalit Chandivade /* Create session object, with INVALID_ENTRY, 45934a4bc2e9SLalit Chandivade * the targer_id would get set when we issue the login 45944a4bc2e9SLalit Chandivade */ 45954a4bc2e9SLalit Chandivade cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 45964a4bc2e9SLalit Chandivade cmds_max, sizeof(struct ddb_entry), 45974a4bc2e9SLalit Chandivade sizeof(struct ql4_task_data), 45984a4bc2e9SLalit Chandivade initial_cmdsn, INVALID_ENTRY); 45994a4bc2e9SLalit Chandivade if (!cls_sess) { 46004a4bc2e9SLalit Chandivade ret = QLA_ERROR; 46014a4bc2e9SLalit Chandivade goto exit_setup; 46024a4bc2e9SLalit Chandivade } 46034a4bc2e9SLalit Chandivade 46044a4bc2e9SLalit Chandivade /* 46054a4bc2e9SLalit Chandivade * so calling module_put function to decrement the 46064a4bc2e9SLalit Chandivade * reference count. 46074a4bc2e9SLalit Chandivade **/ 46084a4bc2e9SLalit Chandivade module_put(qla4xxx_iscsi_transport.owner); 46094a4bc2e9SLalit Chandivade sess = cls_sess->dd_data; 46104a4bc2e9SLalit Chandivade ddb_entry = sess->dd_data; 46114a4bc2e9SLalit Chandivade ddb_entry->sess = cls_sess; 46124a4bc2e9SLalit Chandivade 46134a4bc2e9SLalit Chandivade cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 46144a4bc2e9SLalit Chandivade memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 46154a4bc2e9SLalit Chandivade sizeof(struct dev_db_entry)); 46164a4bc2e9SLalit Chandivade 46174a4bc2e9SLalit Chandivade qla4xxx_setup_flash_ddb_entry(ha, ddb_entry); 46184a4bc2e9SLalit Chandivade 46194a4bc2e9SLalit Chandivade cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 46204a4bc2e9SLalit Chandivade 46214a4bc2e9SLalit Chandivade if (!cls_conn) { 46224a4bc2e9SLalit Chandivade ret = QLA_ERROR; 46234a4bc2e9SLalit Chandivade goto exit_setup; 46244a4bc2e9SLalit Chandivade } 46254a4bc2e9SLalit Chandivade 46264a4bc2e9SLalit Chandivade ddb_entry->conn = cls_conn; 46274a4bc2e9SLalit Chandivade 46284a4bc2e9SLalit Chandivade /* Setup ep, for displaying attributes in sysfs */ 46294a4bc2e9SLalit Chandivade ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 46304a4bc2e9SLalit Chandivade if (ep) { 46314a4bc2e9SLalit Chandivade ep->conn = cls_conn; 46324a4bc2e9SLalit Chandivade cls_conn->ep = ep; 46334a4bc2e9SLalit Chandivade } else { 46344a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 46354a4bc2e9SLalit Chandivade ret = QLA_ERROR; 46364a4bc2e9SLalit Chandivade goto exit_setup; 46374a4bc2e9SLalit Chandivade } 46384a4bc2e9SLalit Chandivade 46394a4bc2e9SLalit Chandivade /* Update sess/conn params */ 46404a4bc2e9SLalit Chandivade qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 46414a4bc2e9SLalit Chandivade 46424a4bc2e9SLalit Chandivade if (is_reset == RESET_ADAPTER) { 46434a4bc2e9SLalit Chandivade iscsi_block_session(cls_sess); 46444a4bc2e9SLalit Chandivade /* Use the relogin path to discover new devices 46454a4bc2e9SLalit Chandivade * by short-circuting the logic of setting 46464a4bc2e9SLalit Chandivade * timer to relogin - instead set the flags 46474a4bc2e9SLalit Chandivade * to initiate login right away. 46484a4bc2e9SLalit Chandivade */ 46494a4bc2e9SLalit Chandivade set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 46504a4bc2e9SLalit Chandivade set_bit(DF_RELOGIN, &ddb_entry->flags); 46514a4bc2e9SLalit Chandivade } 46524a4bc2e9SLalit Chandivade 46534a4bc2e9SLalit Chandivade exit_setup: 46544a4bc2e9SLalit Chandivade return ret; 46554a4bc2e9SLalit Chandivade } 46564a4bc2e9SLalit Chandivade 46574a4bc2e9SLalit Chandivade static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 46584a4bc2e9SLalit Chandivade struct list_head *list_nt, int is_reset) 46594a4bc2e9SLalit Chandivade { 46604a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry; 46614a4bc2e9SLalit Chandivade dma_addr_t fw_ddb_dma; 46624a4bc2e9SLalit Chandivade int max_ddbs; 46634a4bc2e9SLalit Chandivade int fw_idx_size; 46644a4bc2e9SLalit Chandivade int ret; 46654a4bc2e9SLalit Chandivade uint32_t idx = 0, next_idx = 0; 46664a4bc2e9SLalit Chandivade uint32_t state = 0, conn_err = 0; 46674a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 46684a4bc2e9SLalit Chandivade struct qla_ddb_index *nt_ddb_idx; 46694a4bc2e9SLalit Chandivade 46704a4bc2e9SLalit Chandivade fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 46714a4bc2e9SLalit Chandivade &fw_ddb_dma); 46724a4bc2e9SLalit Chandivade if (fw_ddb_entry == NULL) { 46734a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 46744a4bc2e9SLalit Chandivade goto exit_nt_list; 46754a4bc2e9SLalit Chandivade } 46764a4bc2e9SLalit Chandivade max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 46774a4bc2e9SLalit Chandivade MAX_DEV_DB_ENTRIES; 46784a4bc2e9SLalit Chandivade fw_idx_size = sizeof(struct qla_ddb_index); 46794a4bc2e9SLalit Chandivade 46804a4bc2e9SLalit Chandivade for (idx = 0; idx < max_ddbs; idx = next_idx) { 46814a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 46824a4bc2e9SLalit Chandivade NULL, &next_idx, &state, 46834a4bc2e9SLalit Chandivade &conn_err, NULL, &conn_id); 46844a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 46854a4bc2e9SLalit Chandivade break; 46864a4bc2e9SLalit Chandivade 46874a4bc2e9SLalit Chandivade if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 46884a4bc2e9SLalit Chandivade goto continue_next_nt; 46894a4bc2e9SLalit Chandivade 46904a4bc2e9SLalit Chandivade /* Check if NT, then add to list it */ 46914a4bc2e9SLalit Chandivade if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 46924a4bc2e9SLalit Chandivade goto continue_next_nt; 46934a4bc2e9SLalit Chandivade 46944a4bc2e9SLalit Chandivade if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 46954a4bc2e9SLalit Chandivade state == DDB_DS_SESSION_FAILED)) 46964a4bc2e9SLalit Chandivade goto continue_next_nt; 46974a4bc2e9SLalit Chandivade 46984a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_INFO, ha, 46994a4bc2e9SLalit Chandivade "Adding DDB to session = 0x%x\n", idx)); 47004a4bc2e9SLalit Chandivade if (is_reset == INIT_ADAPTER) { 47014a4bc2e9SLalit Chandivade nt_ddb_idx = vmalloc(fw_idx_size); 47024a4bc2e9SLalit Chandivade if (!nt_ddb_idx) 47034a4bc2e9SLalit Chandivade break; 47044a4bc2e9SLalit Chandivade 47054a4bc2e9SLalit Chandivade nt_ddb_idx->fw_ddb_idx = idx; 47064a4bc2e9SLalit Chandivade 47074a4bc2e9SLalit Chandivade memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 47084a4bc2e9SLalit Chandivade sizeof(struct dev_db_entry)); 47094a4bc2e9SLalit Chandivade 47104a4bc2e9SLalit Chandivade if (qla4xxx_is_flash_ddb_exists(ha, list_nt, 47114a4bc2e9SLalit Chandivade fw_ddb_entry) == QLA_SUCCESS) { 47124a4bc2e9SLalit Chandivade vfree(nt_ddb_idx); 47134a4bc2e9SLalit Chandivade goto continue_next_nt; 47144a4bc2e9SLalit Chandivade } 47154a4bc2e9SLalit Chandivade list_add_tail(&nt_ddb_idx->list, list_nt); 47164a4bc2e9SLalit Chandivade } else if (is_reset == RESET_ADAPTER) { 47174a4bc2e9SLalit Chandivade if (qla4xxx_is_session_exists(ha, fw_ddb_entry) == 47184a4bc2e9SLalit Chandivade QLA_SUCCESS) 47194a4bc2e9SLalit Chandivade goto continue_next_nt; 47204a4bc2e9SLalit Chandivade } 47214a4bc2e9SLalit Chandivade 47224a4bc2e9SLalit Chandivade ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset); 47234a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 47244a4bc2e9SLalit Chandivade goto exit_nt_list; 47254a4bc2e9SLalit Chandivade 47264a4bc2e9SLalit Chandivade continue_next_nt: 47274a4bc2e9SLalit Chandivade if (next_idx == 0) 47284a4bc2e9SLalit Chandivade break; 47294a4bc2e9SLalit Chandivade } 47304a4bc2e9SLalit Chandivade 47314a4bc2e9SLalit Chandivade exit_nt_list: 47324a4bc2e9SLalit Chandivade if (fw_ddb_entry) 47334a4bc2e9SLalit Chandivade dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 47344a4bc2e9SLalit Chandivade } 47354a4bc2e9SLalit Chandivade 47364a4bc2e9SLalit Chandivade /** 47374a4bc2e9SLalit Chandivade * qla4xxx_build_ddb_list - Build ddb list and setup sessions 47384a4bc2e9SLalit Chandivade * @ha: pointer to adapter structure 47394a4bc2e9SLalit Chandivade * @is_reset: Is this init path or reset path 47404a4bc2e9SLalit Chandivade * 47414a4bc2e9SLalit Chandivade * Create a list of sendtargets (st) from firmware DDBs, issue send targets 47424a4bc2e9SLalit Chandivade * using connection open, then create the list of normal targets (nt) 47434a4bc2e9SLalit Chandivade * from firmware DDBs. Based on the list of nt setup session and connection 47444a4bc2e9SLalit Chandivade * objects. 47454a4bc2e9SLalit Chandivade **/ 47464a4bc2e9SLalit Chandivade void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 47474a4bc2e9SLalit Chandivade { 47484a4bc2e9SLalit Chandivade uint16_t tmo = 0; 47494a4bc2e9SLalit Chandivade struct list_head list_st, list_nt; 47504a4bc2e9SLalit Chandivade struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 47514a4bc2e9SLalit Chandivade unsigned long wtime; 47524a4bc2e9SLalit Chandivade 47534a4bc2e9SLalit Chandivade if (!test_bit(AF_LINK_UP, &ha->flags)) { 47544a4bc2e9SLalit Chandivade set_bit(AF_BUILD_DDB_LIST, &ha->flags); 47554a4bc2e9SLalit Chandivade ha->is_reset = is_reset; 47564a4bc2e9SLalit Chandivade return; 47574a4bc2e9SLalit Chandivade } 47584a4bc2e9SLalit Chandivade 47594a4bc2e9SLalit Chandivade INIT_LIST_HEAD(&list_st); 47604a4bc2e9SLalit Chandivade INIT_LIST_HEAD(&list_nt); 47614a4bc2e9SLalit Chandivade 47624a4bc2e9SLalit Chandivade qla4xxx_build_st_list(ha, &list_st); 47634a4bc2e9SLalit Chandivade 476413483730SMike Christie /* Before issuing conn open mbox, ensure all IPs states are configured 476513483730SMike Christie * Note, conn open fails if IPs are not configured 476613483730SMike Christie */ 476713483730SMike Christie qla4xxx_wait_for_ip_configuration(ha); 476813483730SMike Christie 476913483730SMike Christie /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 477013483730SMike Christie list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 477113483730SMike Christie qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 477213483730SMike Christie } 477313483730SMike Christie 477413483730SMike Christie /* Wait to ensure all sendtargets are done for min 12 sec wait */ 4775c28eaacaSNilesh Javali tmo = ((ha->def_timeout > LOGIN_TOV) && 4776c28eaacaSNilesh Javali (ha->def_timeout < LOGIN_TOV * 10) ? 4777c28eaacaSNilesh Javali ha->def_timeout : LOGIN_TOV); 4778c28eaacaSNilesh Javali 477913483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 478013483730SMike Christie "Default time to wait for build ddb %d\n", tmo)); 478113483730SMike Christie 478213483730SMike Christie wtime = jiffies + (HZ * tmo); 478313483730SMike Christie do { 4784f1f2e60eSNilesh Javali if (list_empty(&list_st)) 4785f1f2e60eSNilesh Javali break; 4786f1f2e60eSNilesh Javali 47874a4bc2e9SLalit Chandivade qla4xxx_remove_failed_ddb(ha, &list_st); 478813483730SMike Christie schedule_timeout_uninterruptible(HZ / 10); 478913483730SMike Christie } while (time_after(wtime, jiffies)); 479013483730SMike Christie 479113483730SMike Christie /* Free up the sendtargets list */ 47924a4bc2e9SLalit Chandivade qla4xxx_free_ddb_list(&list_st); 479313483730SMike Christie 47944a4bc2e9SLalit Chandivade qla4xxx_build_nt_list(ha, &list_nt, is_reset); 479513483730SMike Christie 47964a4bc2e9SLalit Chandivade qla4xxx_free_ddb_list(&list_nt); 479713483730SMike Christie 479813483730SMike Christie qla4xxx_free_ddb_index(ha); 479913483730SMike Christie } 480013483730SMike Christie 4801afaf5a2dSDavid Somayajulu /** 4802afaf5a2dSDavid Somayajulu * qla4xxx_probe_adapter - callback function to probe HBA 4803afaf5a2dSDavid Somayajulu * @pdev: pointer to pci_dev structure 4804afaf5a2dSDavid Somayajulu * @pci_device_id: pointer to pci_device entry 4805afaf5a2dSDavid Somayajulu * 4806afaf5a2dSDavid Somayajulu * This routine will probe for Qlogic 4xxx iSCSI host adapters. 4807afaf5a2dSDavid Somayajulu * It returns zero if successful. It also initializes all data necessary for 4808afaf5a2dSDavid Somayajulu * the driver. 4809afaf5a2dSDavid Somayajulu **/ 4810afaf5a2dSDavid Somayajulu static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, 4811afaf5a2dSDavid Somayajulu const struct pci_device_id *ent) 4812afaf5a2dSDavid Somayajulu { 4813afaf5a2dSDavid Somayajulu int ret = -ENODEV, status; 4814afaf5a2dSDavid Somayajulu struct Scsi_Host *host; 4815afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 4816afaf5a2dSDavid Somayajulu uint8_t init_retry_count = 0; 4817afaf5a2dSDavid Somayajulu char buf[34]; 4818f4f5df23SVikas Chaudhary struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 4819f9880e76SPrasanna Mumbai uint32_t dev_state; 4820afaf5a2dSDavid Somayajulu 4821afaf5a2dSDavid Somayajulu if (pci_enable_device(pdev)) 4822afaf5a2dSDavid Somayajulu return -1; 4823afaf5a2dSDavid Somayajulu 4824b3a271a9SManish Rangankar host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 4825afaf5a2dSDavid Somayajulu if (host == NULL) { 4826afaf5a2dSDavid Somayajulu printk(KERN_WARNING 4827afaf5a2dSDavid Somayajulu "qla4xxx: Couldn't allocate host from scsi layer!\n"); 4828afaf5a2dSDavid Somayajulu goto probe_disable_device; 4829afaf5a2dSDavid Somayajulu } 4830afaf5a2dSDavid Somayajulu 4831afaf5a2dSDavid Somayajulu /* Clear our data area */ 4832b3a271a9SManish Rangankar ha = to_qla_host(host); 4833afaf5a2dSDavid Somayajulu memset(ha, 0, sizeof(*ha)); 4834afaf5a2dSDavid Somayajulu 4835afaf5a2dSDavid Somayajulu /* Save the information from PCI BIOS. */ 4836afaf5a2dSDavid Somayajulu ha->pdev = pdev; 4837afaf5a2dSDavid Somayajulu ha->host = host; 4838afaf5a2dSDavid Somayajulu ha->host_no = host->host_no; 4839afaf5a2dSDavid Somayajulu 48402232be0dSLalit Chandivade pci_enable_pcie_error_reporting(pdev); 48412232be0dSLalit Chandivade 4842f4f5df23SVikas Chaudhary /* Setup Runtime configurable options */ 4843f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 4844f4f5df23SVikas Chaudhary ha->isp_ops = &qla4_8xxx_isp_ops; 4845f4f5df23SVikas Chaudhary rwlock_init(&ha->hw_lock); 4846f4f5df23SVikas Chaudhary ha->qdr_sn_window = -1; 4847f4f5df23SVikas Chaudhary ha->ddr_mn_window = -1; 4848f4f5df23SVikas Chaudhary ha->curr_window = 255; 4849f4f5df23SVikas Chaudhary ha->func_num = PCI_FUNC(ha->pdev->devfn); 4850f4f5df23SVikas Chaudhary nx_legacy_intr = &legacy_intr[ha->func_num]; 4851f4f5df23SVikas Chaudhary ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 4852f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_status_reg = 4853f4f5df23SVikas Chaudhary nx_legacy_intr->tgt_status_reg; 4854f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 4855f4f5df23SVikas Chaudhary ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 4856f4f5df23SVikas Chaudhary } else { 4857f4f5df23SVikas Chaudhary ha->isp_ops = &qla4xxx_isp_ops; 4858f4f5df23SVikas Chaudhary } 4859f4f5df23SVikas Chaudhary 48602232be0dSLalit Chandivade /* Set EEH reset type to fundamental if required by hba */ 48612232be0dSLalit Chandivade if (is_qla8022(ha)) 48622232be0dSLalit Chandivade pdev->needs_freset = 1; 48632232be0dSLalit Chandivade 4864afaf5a2dSDavid Somayajulu /* Configure PCI I/O space. */ 4865f4f5df23SVikas Chaudhary ret = ha->isp_ops->iospace_config(ha); 4866afaf5a2dSDavid Somayajulu if (ret) 4867f4f5df23SVikas Chaudhary goto probe_failed_ioconfig; 4868afaf5a2dSDavid Somayajulu 4869c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 4870afaf5a2dSDavid Somayajulu pdev->device, pdev->irq, ha->reg); 4871afaf5a2dSDavid Somayajulu 4872afaf5a2dSDavid Somayajulu qla4xxx_config_dma_addressing(ha); 4873afaf5a2dSDavid Somayajulu 4874afaf5a2dSDavid Somayajulu /* Initialize lists and spinlocks. */ 4875afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->free_srb_q); 4876afaf5a2dSDavid Somayajulu 4877afaf5a2dSDavid Somayajulu mutex_init(&ha->mbox_sem); 48784549415aSLalit Chandivade mutex_init(&ha->chap_sem); 4879f4f5df23SVikas Chaudhary init_completion(&ha->mbx_intr_comp); 488095d31262SVikas Chaudhary init_completion(&ha->disable_acb_comp); 4881afaf5a2dSDavid Somayajulu 4882afaf5a2dSDavid Somayajulu spin_lock_init(&ha->hardware_lock); 4883afaf5a2dSDavid Somayajulu 4884ff884430SVikas Chaudhary /* Initialize work list */ 4885ff884430SVikas Chaudhary INIT_LIST_HEAD(&ha->work_list); 4886ff884430SVikas Chaudhary 4887afaf5a2dSDavid Somayajulu /* Allocate dma buffers */ 4888afaf5a2dSDavid Somayajulu if (qla4xxx_mem_alloc(ha)) { 4889c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 4890afaf5a2dSDavid Somayajulu "[ERROR] Failed to allocate memory for adapter\n"); 4891afaf5a2dSDavid Somayajulu 4892afaf5a2dSDavid Somayajulu ret = -ENOMEM; 4893afaf5a2dSDavid Somayajulu goto probe_failed; 4894afaf5a2dSDavid Somayajulu } 4895afaf5a2dSDavid Somayajulu 4896b3a271a9SManish Rangankar host->cmd_per_lun = 3; 4897b3a271a9SManish Rangankar host->max_channel = 0; 4898b3a271a9SManish Rangankar host->max_lun = MAX_LUNS - 1; 4899b3a271a9SManish Rangankar host->max_id = MAX_TARGETS; 4900b3a271a9SManish Rangankar host->max_cmd_len = IOCB_MAX_CDB_LEN; 4901b3a271a9SManish Rangankar host->can_queue = MAX_SRBS ; 4902b3a271a9SManish Rangankar host->transportt = qla4xxx_scsi_transport; 4903b3a271a9SManish Rangankar 4904b3a271a9SManish Rangankar ret = scsi_init_shared_tag_map(host, MAX_SRBS); 4905b3a271a9SManish Rangankar if (ret) { 4906b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 4907b3a271a9SManish Rangankar "%s: scsi_init_shared_tag_map failed\n", __func__); 4908b3a271a9SManish Rangankar goto probe_failed; 4909b3a271a9SManish Rangankar } 4910b3a271a9SManish Rangankar 4911b3a271a9SManish Rangankar pci_set_drvdata(pdev, ha); 4912b3a271a9SManish Rangankar 4913b3a271a9SManish Rangankar ret = scsi_add_host(host, &pdev->dev); 4914b3a271a9SManish Rangankar if (ret) 4915b3a271a9SManish Rangankar goto probe_failed; 4916b3a271a9SManish Rangankar 4917f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 4918f4f5df23SVikas Chaudhary (void) qla4_8xxx_get_flash_info(ha); 4919f4f5df23SVikas Chaudhary 4920afaf5a2dSDavid Somayajulu /* 4921afaf5a2dSDavid Somayajulu * Initialize the Host adapter request/response queues and 4922afaf5a2dSDavid Somayajulu * firmware 4923afaf5a2dSDavid Somayajulu * NOTE: interrupts enabled upon successful completion 4924afaf5a2dSDavid Somayajulu */ 492513483730SMike Christie status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 4926f4f5df23SVikas Chaudhary while ((!test_bit(AF_ONLINE, &ha->flags)) && 4927f4f5df23SVikas Chaudhary init_retry_count++ < MAX_INIT_RETRIES) { 4928f9880e76SPrasanna Mumbai 4929f9880e76SPrasanna Mumbai if (is_qla8022(ha)) { 4930f9880e76SPrasanna Mumbai qla4_8xxx_idc_lock(ha); 4931f9880e76SPrasanna Mumbai dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 4932f9880e76SPrasanna Mumbai qla4_8xxx_idc_unlock(ha); 4933f9880e76SPrasanna Mumbai if (dev_state == QLA82XX_DEV_FAILED) { 4934f9880e76SPrasanna Mumbai ql4_printk(KERN_WARNING, ha, "%s: don't retry " 4935f9880e76SPrasanna Mumbai "initialize adapter. H/W is in failed state\n", 4936f9880e76SPrasanna Mumbai __func__); 4937f9880e76SPrasanna Mumbai break; 4938f9880e76SPrasanna Mumbai } 4939f9880e76SPrasanna Mumbai } 4940afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: retrying adapter initialization " 4941afaf5a2dSDavid Somayajulu "(%d)\n", __func__, init_retry_count)); 4942f4f5df23SVikas Chaudhary 4943f4f5df23SVikas Chaudhary if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 4944f4f5df23SVikas Chaudhary continue; 4945f4f5df23SVikas Chaudhary 494613483730SMike Christie status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 4947afaf5a2dSDavid Somayajulu } 4948f4f5df23SVikas Chaudhary 4949f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags)) { 4950c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 4951afaf5a2dSDavid Somayajulu 4952fe998527SLalit Chandivade if (is_qla8022(ha) && ql4xdontresethba) { 4953fe998527SLalit Chandivade /* Put the device in failed state. */ 4954fe998527SLalit Chandivade DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 4955fe998527SLalit Chandivade qla4_8xxx_idc_lock(ha); 4956fe998527SLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 4957fe998527SLalit Chandivade QLA82XX_DEV_FAILED); 4958fe998527SLalit Chandivade qla4_8xxx_idc_unlock(ha); 4959fe998527SLalit Chandivade } 4960afaf5a2dSDavid Somayajulu ret = -ENODEV; 4961b3a271a9SManish Rangankar goto remove_host; 4962afaf5a2dSDavid Somayajulu } 4963afaf5a2dSDavid Somayajulu 4964afaf5a2dSDavid Somayajulu /* Startup the kernel thread for this host adapter. */ 4965afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: Starting kernel thread for " 4966afaf5a2dSDavid Somayajulu "qla4xxx_dpc\n", __func__)); 4967afaf5a2dSDavid Somayajulu sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 4968afaf5a2dSDavid Somayajulu ha->dpc_thread = create_singlethread_workqueue(buf); 4969afaf5a2dSDavid Somayajulu if (!ha->dpc_thread) { 4970c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 4971afaf5a2dSDavid Somayajulu ret = -ENODEV; 4972b3a271a9SManish Rangankar goto remove_host; 4973afaf5a2dSDavid Somayajulu } 4974c4028958SDavid Howells INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 4975afaf5a2dSDavid Somayajulu 4976b3a271a9SManish Rangankar sprintf(buf, "qla4xxx_%lu_task", ha->host_no); 4977b3a271a9SManish Rangankar ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1); 4978b3a271a9SManish Rangankar if (!ha->task_wq) { 4979b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 4980b3a271a9SManish Rangankar ret = -ENODEV; 4981b3a271a9SManish Rangankar goto remove_host; 4982b3a271a9SManish Rangankar } 4983b3a271a9SManish Rangankar 4984f4f5df23SVikas Chaudhary /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc 4985f4f5df23SVikas Chaudhary * (which is called indirectly by qla4xxx_initialize_adapter), 4986f4f5df23SVikas Chaudhary * so that irqs will be registered after crbinit but before 4987f4f5df23SVikas Chaudhary * mbx_intr_enable. 4988f4f5df23SVikas Chaudhary */ 4989f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 4990f4f5df23SVikas Chaudhary ret = qla4xxx_request_irqs(ha); 4991afaf5a2dSDavid Somayajulu if (ret) { 4992f4f5df23SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to reserve " 4993f4f5df23SVikas Chaudhary "interrupt %d already in use.\n", pdev->irq); 4994b3a271a9SManish Rangankar goto remove_host; 4995afaf5a2dSDavid Somayajulu } 4996f4f5df23SVikas Chaudhary } 4997afaf5a2dSDavid Somayajulu 49982232be0dSLalit Chandivade pci_save_state(ha->pdev); 4999f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 5000afaf5a2dSDavid Somayajulu 5001afaf5a2dSDavid Somayajulu /* Start timer thread. */ 5002afaf5a2dSDavid Somayajulu qla4xxx_start_timer(ha, qla4xxx_timer, 1); 5003afaf5a2dSDavid Somayajulu 5004afaf5a2dSDavid Somayajulu set_bit(AF_INIT_DONE, &ha->flags); 5005afaf5a2dSDavid Somayajulu 5006afaf5a2dSDavid Somayajulu printk(KERN_INFO 5007afaf5a2dSDavid Somayajulu " QLogic iSCSI HBA Driver version: %s\n" 5008afaf5a2dSDavid Somayajulu " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 5009afaf5a2dSDavid Somayajulu qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 5010afaf5a2dSDavid Somayajulu ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 5011afaf5a2dSDavid Somayajulu ha->patch_number, ha->build_number); 5012ed1086e0SVikas Chaudhary 50132a991c21SManish Rangankar if (qla4xxx_setup_boot_info(ha)) 50142a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n", 50152a991c21SManish Rangankar __func__); 50162a991c21SManish Rangankar 501713483730SMike Christie /* Perform the build ddb list and login to each */ 501813483730SMike Christie qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 501913483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 502013483730SMike Christie 502113483730SMike Christie qla4xxx_create_chap_list(ha); 502213483730SMike Christie 5023ed1086e0SVikas Chaudhary qla4xxx_create_ifaces(ha); 5024afaf5a2dSDavid Somayajulu return 0; 5025afaf5a2dSDavid Somayajulu 5026b3a271a9SManish Rangankar remove_host: 5027b3a271a9SManish Rangankar scsi_remove_host(ha->host); 5028b3a271a9SManish Rangankar 5029afaf5a2dSDavid Somayajulu probe_failed: 5030afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 5031f4f5df23SVikas Chaudhary 5032f4f5df23SVikas Chaudhary probe_failed_ioconfig: 50332232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 5034afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 5035afaf5a2dSDavid Somayajulu 5036afaf5a2dSDavid Somayajulu probe_disable_device: 5037afaf5a2dSDavid Somayajulu pci_disable_device(pdev); 5038afaf5a2dSDavid Somayajulu 5039afaf5a2dSDavid Somayajulu return ret; 5040afaf5a2dSDavid Somayajulu } 5041afaf5a2dSDavid Somayajulu 5042afaf5a2dSDavid Somayajulu /** 50437eece5a0SKaren Higgins * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 50447eece5a0SKaren Higgins * @ha: pointer to adapter structure 50457eece5a0SKaren Higgins * 50467eece5a0SKaren Higgins * Mark the other ISP-4xxx port to indicate that the driver is being removed, 50477eece5a0SKaren Higgins * so that the other port will not re-initialize while in the process of 50487eece5a0SKaren Higgins * removing the ha due to driver unload or hba hotplug. 50497eece5a0SKaren Higgins **/ 50507eece5a0SKaren Higgins static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 50517eece5a0SKaren Higgins { 50527eece5a0SKaren Higgins struct scsi_qla_host *other_ha = NULL; 50537eece5a0SKaren Higgins struct pci_dev *other_pdev = NULL; 50547eece5a0SKaren Higgins int fn = ISP4XXX_PCI_FN_2; 50557eece5a0SKaren Higgins 50567eece5a0SKaren Higgins /*iscsi function numbers for ISP4xxx is 1 and 3*/ 50577eece5a0SKaren Higgins if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 50587eece5a0SKaren Higgins fn = ISP4XXX_PCI_FN_1; 50597eece5a0SKaren Higgins 50607eece5a0SKaren Higgins other_pdev = 50617eece5a0SKaren Higgins pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 50627eece5a0SKaren Higgins ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 50637eece5a0SKaren Higgins fn)); 50647eece5a0SKaren Higgins 50657eece5a0SKaren Higgins /* Get other_ha if other_pdev is valid and state is enable*/ 50667eece5a0SKaren Higgins if (other_pdev) { 50677eece5a0SKaren Higgins if (atomic_read(&other_pdev->enable_cnt)) { 50687eece5a0SKaren Higgins other_ha = pci_get_drvdata(other_pdev); 50697eece5a0SKaren Higgins if (other_ha) { 50707eece5a0SKaren Higgins set_bit(AF_HA_REMOVAL, &other_ha->flags); 50717eece5a0SKaren Higgins DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 50727eece5a0SKaren Higgins "Prevent %s reinit\n", __func__, 50737eece5a0SKaren Higgins dev_name(&other_ha->pdev->dev))); 50747eece5a0SKaren Higgins } 50757eece5a0SKaren Higgins } 50767eece5a0SKaren Higgins pci_dev_put(other_pdev); 50777eece5a0SKaren Higgins } 50787eece5a0SKaren Higgins } 50797eece5a0SKaren Higgins 508013483730SMike Christie static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 508113483730SMike Christie { 508213483730SMike Christie struct ddb_entry *ddb_entry; 508313483730SMike Christie int options; 508413483730SMike Christie int idx; 508513483730SMike Christie 508613483730SMike Christie for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 508713483730SMike Christie 508813483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 508913483730SMike Christie if ((ddb_entry != NULL) && 509013483730SMike Christie (ddb_entry->ddb_type == FLASH_DDB)) { 509113483730SMike Christie 509213483730SMike Christie options = LOGOUT_OPTION_CLOSE_SESSION; 509313483730SMike Christie if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) 509413483730SMike Christie == QLA_ERROR) 509513483730SMike Christie ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", 509613483730SMike Christie __func__); 509713483730SMike Christie 509813483730SMike Christie qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 509913483730SMike Christie /* 510013483730SMike Christie * we have decremented the reference count of the driver 510113483730SMike Christie * when we setup the session to have the driver unload 510213483730SMike Christie * to be seamless without actually destroying the 510313483730SMike Christie * session 510413483730SMike Christie **/ 510513483730SMike Christie try_module_get(qla4xxx_iscsi_transport.owner); 510613483730SMike Christie iscsi_destroy_endpoint(ddb_entry->conn->ep); 510713483730SMike Christie qla4xxx_free_ddb(ha, ddb_entry); 510813483730SMike Christie iscsi_session_teardown(ddb_entry->sess); 510913483730SMike Christie } 511013483730SMike Christie } 511113483730SMike Christie } 51127eece5a0SKaren Higgins /** 5113afaf5a2dSDavid Somayajulu * qla4xxx_remove_adapter - calback function to remove adapter. 5114afaf5a2dSDavid Somayajulu * @pci_dev: PCI device pointer 5115afaf5a2dSDavid Somayajulu **/ 5116afaf5a2dSDavid Somayajulu static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) 5117afaf5a2dSDavid Somayajulu { 5118afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 5119afaf5a2dSDavid Somayajulu 5120afaf5a2dSDavid Somayajulu ha = pci_get_drvdata(pdev); 5121afaf5a2dSDavid Somayajulu 51227eece5a0SKaren Higgins if (!is_qla8022(ha)) 51237eece5a0SKaren Higgins qla4xxx_prevent_other_port_reinit(ha); 5124bee4fe8eSDavid C Somayajulu 5125ed1086e0SVikas Chaudhary /* destroy iface from sysfs */ 5126ed1086e0SVikas Chaudhary qla4xxx_destroy_ifaces(ha); 5127ed1086e0SVikas Chaudhary 512813483730SMike Christie if ((!ql4xdisablesysfsboot) && ha->boot_kset) 51292a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 51302a991c21SManish Rangankar 513113483730SMike Christie qla4xxx_destroy_fw_ddb_session(ha); 513213483730SMike Christie 5133afaf5a2dSDavid Somayajulu scsi_remove_host(ha->host); 5134afaf5a2dSDavid Somayajulu 5135afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 5136afaf5a2dSDavid Somayajulu 5137afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 5138afaf5a2dSDavid Somayajulu 51392232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 5140f4f5df23SVikas Chaudhary pci_disable_device(pdev); 5141afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, NULL); 5142afaf5a2dSDavid Somayajulu } 5143afaf5a2dSDavid Somayajulu 5144afaf5a2dSDavid Somayajulu /** 5145afaf5a2dSDavid Somayajulu * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 5146afaf5a2dSDavid Somayajulu * @ha: HA context 5147afaf5a2dSDavid Somayajulu * 5148afaf5a2dSDavid Somayajulu * At exit, the @ha's flags.enable_64bit_addressing set to indicated 5149afaf5a2dSDavid Somayajulu * supported addressing method. 5150afaf5a2dSDavid Somayajulu */ 515147975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 5152afaf5a2dSDavid Somayajulu { 5153afaf5a2dSDavid Somayajulu int retval; 5154afaf5a2dSDavid Somayajulu 5155afaf5a2dSDavid Somayajulu /* Update our PCI device dma_mask for full 64 bit mask */ 51566a35528aSYang Hongyang if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 51576a35528aSYang Hongyang if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 5158afaf5a2dSDavid Somayajulu dev_dbg(&ha->pdev->dev, 5159afaf5a2dSDavid Somayajulu "Failed to set 64 bit PCI consistent mask; " 5160afaf5a2dSDavid Somayajulu "using 32 bit.\n"); 5161afaf5a2dSDavid Somayajulu retval = pci_set_consistent_dma_mask(ha->pdev, 5162284901a9SYang Hongyang DMA_BIT_MASK(32)); 5163afaf5a2dSDavid Somayajulu } 5164afaf5a2dSDavid Somayajulu } else 5165284901a9SYang Hongyang retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 5166afaf5a2dSDavid Somayajulu } 5167afaf5a2dSDavid Somayajulu 5168afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *sdev) 5169afaf5a2dSDavid Somayajulu { 5170b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 5171b3a271a9SManish Rangankar struct iscsi_session *sess; 5172b3a271a9SManish Rangankar struct ddb_entry *ddb; 51738bb4033dSVikas Chaudhary int queue_depth = QL4_DEF_QDEPTH; 5174afaf5a2dSDavid Somayajulu 5175b3a271a9SManish Rangankar cls_sess = starget_to_session(sdev->sdev_target); 5176b3a271a9SManish Rangankar sess = cls_sess->dd_data; 5177b3a271a9SManish Rangankar ddb = sess->dd_data; 5178b3a271a9SManish Rangankar 5179afaf5a2dSDavid Somayajulu sdev->hostdata = ddb; 5180afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 51818bb4033dSVikas Chaudhary 51828bb4033dSVikas Chaudhary if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 51838bb4033dSVikas Chaudhary queue_depth = ql4xmaxqdepth; 51848bb4033dSVikas Chaudhary 51858bb4033dSVikas Chaudhary scsi_activate_tcq(sdev, queue_depth); 5186afaf5a2dSDavid Somayajulu return 0; 5187afaf5a2dSDavid Somayajulu } 5188afaf5a2dSDavid Somayajulu 5189afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *sdev) 5190afaf5a2dSDavid Somayajulu { 5191afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 5192afaf5a2dSDavid Somayajulu return 0; 5193afaf5a2dSDavid Somayajulu } 5194afaf5a2dSDavid Somayajulu 5195afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev) 5196afaf5a2dSDavid Somayajulu { 5197afaf5a2dSDavid Somayajulu scsi_deactivate_tcq(sdev, 1); 5198afaf5a2dSDavid Somayajulu } 5199afaf5a2dSDavid Somayajulu 5200afaf5a2dSDavid Somayajulu /** 5201afaf5a2dSDavid Somayajulu * qla4xxx_del_from_active_array - returns an active srb 5202afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 5203fd589a8fSAnand Gadiyar * @index: index into the active_array 5204afaf5a2dSDavid Somayajulu * 5205afaf5a2dSDavid Somayajulu * This routine removes and returns the srb at the specified index 5206afaf5a2dSDavid Somayajulu **/ 5207f4f5df23SVikas Chaudhary struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 5208f4f5df23SVikas Chaudhary uint32_t index) 5209afaf5a2dSDavid Somayajulu { 5210afaf5a2dSDavid Somayajulu struct srb *srb = NULL; 52115369887aSVikas Chaudhary struct scsi_cmnd *cmd = NULL; 5212afaf5a2dSDavid Somayajulu 52135369887aSVikas Chaudhary cmd = scsi_host_find_tag(ha->host, index); 52145369887aSVikas Chaudhary if (!cmd) 5215afaf5a2dSDavid Somayajulu return srb; 5216afaf5a2dSDavid Somayajulu 52175369887aSVikas Chaudhary srb = (struct srb *)CMD_SP(cmd); 52185369887aSVikas Chaudhary if (!srb) 5219afaf5a2dSDavid Somayajulu return srb; 5220afaf5a2dSDavid Somayajulu 5221afaf5a2dSDavid Somayajulu /* update counters */ 5222afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 5223afaf5a2dSDavid Somayajulu ha->req_q_count += srb->iocb_cnt; 5224afaf5a2dSDavid Somayajulu ha->iocb_cnt -= srb->iocb_cnt; 5225afaf5a2dSDavid Somayajulu if (srb->cmd) 52265369887aSVikas Chaudhary srb->cmd->host_scribble = 52275369887aSVikas Chaudhary (unsigned char *)(unsigned long) MAX_SRBS; 5228afaf5a2dSDavid Somayajulu } 5229afaf5a2dSDavid Somayajulu return srb; 5230afaf5a2dSDavid Somayajulu } 5231afaf5a2dSDavid Somayajulu 5232afaf5a2dSDavid Somayajulu /** 5233afaf5a2dSDavid Somayajulu * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 523409a0f719SVikas Chaudhary * @ha: Pointer to host adapter structure. 5235afaf5a2dSDavid Somayajulu * @cmd: Scsi Command to wait on. 5236afaf5a2dSDavid Somayajulu * 5237afaf5a2dSDavid Somayajulu * This routine waits for the command to be returned by the Firmware 5238afaf5a2dSDavid Somayajulu * for some max time. 5239afaf5a2dSDavid Somayajulu **/ 5240afaf5a2dSDavid Somayajulu static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 5241afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd) 5242afaf5a2dSDavid Somayajulu { 5243afaf5a2dSDavid Somayajulu int done = 0; 5244afaf5a2dSDavid Somayajulu struct srb *rp; 5245afaf5a2dSDavid Somayajulu uint32_t max_wait_time = EH_WAIT_CMD_TOV; 52462232be0dSLalit Chandivade int ret = SUCCESS; 52472232be0dSLalit Chandivade 52482232be0dSLalit Chandivade /* Dont wait on command if PCI error is being handled 52492232be0dSLalit Chandivade * by PCI AER driver 52502232be0dSLalit Chandivade */ 52512232be0dSLalit Chandivade if (unlikely(pci_channel_offline(ha->pdev)) || 52522232be0dSLalit Chandivade (test_bit(AF_EEH_BUSY, &ha->flags))) { 52532232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 52542232be0dSLalit Chandivade ha->host_no, __func__); 52552232be0dSLalit Chandivade return ret; 52562232be0dSLalit Chandivade } 5257afaf5a2dSDavid Somayajulu 5258afaf5a2dSDavid Somayajulu do { 5259afaf5a2dSDavid Somayajulu /* Checking to see if its returned to OS */ 52605369887aSVikas Chaudhary rp = (struct srb *) CMD_SP(cmd); 5261afaf5a2dSDavid Somayajulu if (rp == NULL) { 5262afaf5a2dSDavid Somayajulu done++; 5263afaf5a2dSDavid Somayajulu break; 5264afaf5a2dSDavid Somayajulu } 5265afaf5a2dSDavid Somayajulu 5266afaf5a2dSDavid Somayajulu msleep(2000); 5267afaf5a2dSDavid Somayajulu } while (max_wait_time--); 5268afaf5a2dSDavid Somayajulu 5269afaf5a2dSDavid Somayajulu return done; 5270afaf5a2dSDavid Somayajulu } 5271afaf5a2dSDavid Somayajulu 5272afaf5a2dSDavid Somayajulu /** 5273afaf5a2dSDavid Somayajulu * qla4xxx_wait_for_hba_online - waits for HBA to come online 5274afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 5275afaf5a2dSDavid Somayajulu **/ 5276afaf5a2dSDavid Somayajulu static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 5277afaf5a2dSDavid Somayajulu { 5278afaf5a2dSDavid Somayajulu unsigned long wait_online; 5279afaf5a2dSDavid Somayajulu 5280f581a3f7SVikas Chaudhary wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 5281afaf5a2dSDavid Somayajulu while (time_before(jiffies, wait_online)) { 5282afaf5a2dSDavid Somayajulu 5283afaf5a2dSDavid Somayajulu if (adapter_up(ha)) 5284afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 5285afaf5a2dSDavid Somayajulu 5286afaf5a2dSDavid Somayajulu msleep(2000); 5287afaf5a2dSDavid Somayajulu } 5288afaf5a2dSDavid Somayajulu 5289afaf5a2dSDavid Somayajulu return QLA_ERROR; 5290afaf5a2dSDavid Somayajulu } 5291afaf5a2dSDavid Somayajulu 5292afaf5a2dSDavid Somayajulu /** 5293ce545039SMike Christie * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 5294fd589a8fSAnand Gadiyar * @ha: pointer to HBA 5295afaf5a2dSDavid Somayajulu * @t: target id 5296afaf5a2dSDavid Somayajulu * @l: lun id 5297afaf5a2dSDavid Somayajulu * 5298afaf5a2dSDavid Somayajulu * This function waits for all outstanding commands to a lun to complete. It 5299afaf5a2dSDavid Somayajulu * returns 0 if all pending commands are returned and 1 otherwise. 5300afaf5a2dSDavid Somayajulu **/ 5301ce545039SMike Christie static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 5302ce545039SMike Christie struct scsi_target *stgt, 5303ce545039SMike Christie struct scsi_device *sdev) 5304afaf5a2dSDavid Somayajulu { 5305afaf5a2dSDavid Somayajulu int cnt; 5306afaf5a2dSDavid Somayajulu int status = 0; 5307afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 5308afaf5a2dSDavid Somayajulu 5309afaf5a2dSDavid Somayajulu /* 5310ce545039SMike Christie * Waiting for all commands for the designated target or dev 5311ce545039SMike Christie * in the active array 5312afaf5a2dSDavid Somayajulu */ 5313afaf5a2dSDavid Somayajulu for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 5314afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, cnt); 5315ce545039SMike Christie if (cmd && stgt == scsi_target(cmd->device) && 5316ce545039SMike Christie (!sdev || sdev == cmd->device)) { 5317afaf5a2dSDavid Somayajulu if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 5318afaf5a2dSDavid Somayajulu status++; 5319afaf5a2dSDavid Somayajulu break; 5320afaf5a2dSDavid Somayajulu } 5321afaf5a2dSDavid Somayajulu } 5322afaf5a2dSDavid Somayajulu } 5323afaf5a2dSDavid Somayajulu return status; 5324afaf5a2dSDavid Somayajulu } 5325afaf5a2dSDavid Somayajulu 5326afaf5a2dSDavid Somayajulu /** 532709a0f719SVikas Chaudhary * qla4xxx_eh_abort - callback for abort task. 532809a0f719SVikas Chaudhary * @cmd: Pointer to Linux's SCSI command structure 532909a0f719SVikas Chaudhary * 533009a0f719SVikas Chaudhary * This routine is called by the Linux OS to abort the specified 533109a0f719SVikas Chaudhary * command. 533209a0f719SVikas Chaudhary **/ 533309a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 533409a0f719SVikas Chaudhary { 533509a0f719SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 533609a0f719SVikas Chaudhary unsigned int id = cmd->device->id; 533709a0f719SVikas Chaudhary unsigned int lun = cmd->device->lun; 533892b3e5bbSMike Christie unsigned long flags; 533909a0f719SVikas Chaudhary struct srb *srb = NULL; 534009a0f719SVikas Chaudhary int ret = SUCCESS; 534109a0f719SVikas Chaudhary int wait = 0; 534209a0f719SVikas Chaudhary 5343c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 53445cd049a5SChristoph Hellwig "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 53455cd049a5SChristoph Hellwig ha->host_no, id, lun, cmd); 534609a0f719SVikas Chaudhary 534792b3e5bbSMike Christie spin_lock_irqsave(&ha->hardware_lock, flags); 534809a0f719SVikas Chaudhary srb = (struct srb *) CMD_SP(cmd); 534992b3e5bbSMike Christie if (!srb) { 535092b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 535109a0f719SVikas Chaudhary return SUCCESS; 535292b3e5bbSMike Christie } 535309a0f719SVikas Chaudhary kref_get(&srb->srb_ref); 535492b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 535509a0f719SVikas Chaudhary 535609a0f719SVikas Chaudhary if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 535709a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 535809a0f719SVikas Chaudhary ha->host_no, id, lun)); 535909a0f719SVikas Chaudhary ret = FAILED; 536009a0f719SVikas Chaudhary } else { 536109a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 536209a0f719SVikas Chaudhary ha->host_no, id, lun)); 536309a0f719SVikas Chaudhary wait = 1; 536409a0f719SVikas Chaudhary } 536509a0f719SVikas Chaudhary 536609a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 536709a0f719SVikas Chaudhary 536809a0f719SVikas Chaudhary /* Wait for command to complete */ 536909a0f719SVikas Chaudhary if (wait) { 537009a0f719SVikas Chaudhary if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 537109a0f719SVikas Chaudhary DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 537209a0f719SVikas Chaudhary ha->host_no, id, lun)); 537309a0f719SVikas Chaudhary ret = FAILED; 537409a0f719SVikas Chaudhary } 537509a0f719SVikas Chaudhary } 537609a0f719SVikas Chaudhary 5377c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 537809a0f719SVikas Chaudhary "scsi%ld:%d:%d: Abort command - %s\n", 537925985edcSLucas De Marchi ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 538009a0f719SVikas Chaudhary 538109a0f719SVikas Chaudhary return ret; 538209a0f719SVikas Chaudhary } 538309a0f719SVikas Chaudhary 538409a0f719SVikas Chaudhary /** 5385afaf5a2dSDavid Somayajulu * qla4xxx_eh_device_reset - callback for target reset. 5386afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 5387afaf5a2dSDavid Somayajulu * 5388afaf5a2dSDavid Somayajulu * This routine is called by the Linux OS to reset all luns on the 5389afaf5a2dSDavid Somayajulu * specified target. 5390afaf5a2dSDavid Somayajulu **/ 5391afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 5392afaf5a2dSDavid Somayajulu { 5393afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5394afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 5395afaf5a2dSDavid Somayajulu int ret = FAILED, stat; 5396afaf5a2dSDavid Somayajulu 5397612f7348SKaren Higgins if (!ddb_entry) 5398afaf5a2dSDavid Somayajulu return ret; 5399afaf5a2dSDavid Somayajulu 5400c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 5401c01be6dcSMike Christie if (ret) 5402c01be6dcSMike Christie return ret; 5403c01be6dcSMike Christie ret = FAILED; 5404c01be6dcSMike Christie 5405c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5406afaf5a2dSDavid Somayajulu "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 5407afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 5408afaf5a2dSDavid Somayajulu 5409afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_INFO 5410afaf5a2dSDavid Somayajulu "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 5411afaf5a2dSDavid Somayajulu "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 5412242f9dcbSJens Axboe cmd, jiffies, cmd->request->timeout / HZ, 5413afaf5a2dSDavid Somayajulu ha->dpc_flags, cmd->result, cmd->allowed)); 5414afaf5a2dSDavid Somayajulu 5415afaf5a2dSDavid Somayajulu /* FIXME: wait for hba to go online */ 5416afaf5a2dSDavid Somayajulu stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 5417afaf5a2dSDavid Somayajulu if (stat != QLA_SUCCESS) { 5418c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 5419afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 5420afaf5a2dSDavid Somayajulu } 5421afaf5a2dSDavid Somayajulu 5422ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5423ce545039SMike Christie cmd->device)) { 5424c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5425afaf5a2dSDavid Somayajulu "DEVICE RESET FAILED - waiting for " 5426afaf5a2dSDavid Somayajulu "commands.\n"); 5427afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 5428afaf5a2dSDavid Somayajulu } 5429afaf5a2dSDavid Somayajulu 54309d562913SDavid C Somayajulu /* Send marker. */ 54319d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 54329d562913SDavid C Somayajulu MM_LUN_RESET) != QLA_SUCCESS) 54339d562913SDavid C Somayajulu goto eh_dev_reset_done; 54349d562913SDavid C Somayajulu 5435c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5436afaf5a2dSDavid Somayajulu "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 5437afaf5a2dSDavid Somayajulu ha->host_no, cmd->device->channel, cmd->device->id, 5438afaf5a2dSDavid Somayajulu cmd->device->lun); 5439afaf5a2dSDavid Somayajulu 5440afaf5a2dSDavid Somayajulu ret = SUCCESS; 5441afaf5a2dSDavid Somayajulu 5442afaf5a2dSDavid Somayajulu eh_dev_reset_done: 5443afaf5a2dSDavid Somayajulu 5444afaf5a2dSDavid Somayajulu return ret; 5445afaf5a2dSDavid Somayajulu } 5446afaf5a2dSDavid Somayajulu 5447afaf5a2dSDavid Somayajulu /** 5448ce545039SMike Christie * qla4xxx_eh_target_reset - callback for target reset. 5449ce545039SMike Christie * @cmd: Pointer to Linux's SCSI command structure 5450ce545039SMike Christie * 5451ce545039SMike Christie * This routine is called by the Linux OS to reset the target. 5452ce545039SMike Christie **/ 5453ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 5454ce545039SMike Christie { 5455ce545039SMike Christie struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5456ce545039SMike Christie struct ddb_entry *ddb_entry = cmd->device->hostdata; 5457c01be6dcSMike Christie int stat, ret; 5458ce545039SMike Christie 5459ce545039SMike Christie if (!ddb_entry) 5460ce545039SMike Christie return FAILED; 5461ce545039SMike Christie 5462c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 5463c01be6dcSMike Christie if (ret) 5464c01be6dcSMike Christie return ret; 5465c01be6dcSMike Christie 5466ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5467ce545039SMike Christie "WARM TARGET RESET ISSUED.\n"); 5468ce545039SMike Christie 5469ce545039SMike Christie DEBUG2(printk(KERN_INFO 5470ce545039SMike Christie "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 5471ce545039SMike Christie "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 5472242f9dcbSJens Axboe ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 5473ce545039SMike Christie ha->dpc_flags, cmd->result, cmd->allowed)); 5474ce545039SMike Christie 5475ce545039SMike Christie stat = qla4xxx_reset_target(ha, ddb_entry); 5476ce545039SMike Christie if (stat != QLA_SUCCESS) { 5477ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5478ce545039SMike Christie "WARM TARGET RESET FAILED.\n"); 5479ce545039SMike Christie return FAILED; 5480ce545039SMike Christie } 5481ce545039SMike Christie 5482ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5483ce545039SMike Christie NULL)) { 5484ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5485ce545039SMike Christie "WARM TARGET DEVICE RESET FAILED - " 5486ce545039SMike Christie "waiting for commands.\n"); 5487ce545039SMike Christie return FAILED; 5488ce545039SMike Christie } 5489ce545039SMike Christie 54909d562913SDavid C Somayajulu /* Send marker. */ 54919d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 54929d562913SDavid C Somayajulu MM_TGT_WARM_RESET) != QLA_SUCCESS) { 54939d562913SDavid C Somayajulu starget_printk(KERN_INFO, scsi_target(cmd->device), 54949d562913SDavid C Somayajulu "WARM TARGET DEVICE RESET FAILED - " 54959d562913SDavid C Somayajulu "marker iocb failed.\n"); 54969d562913SDavid C Somayajulu return FAILED; 54979d562913SDavid C Somayajulu } 54989d562913SDavid C Somayajulu 5499ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5500ce545039SMike Christie "WARM TARGET RESET SUCCEEDED.\n"); 5501ce545039SMike Christie return SUCCESS; 5502ce545039SMike Christie } 5503ce545039SMike Christie 5504ce545039SMike Christie /** 55058a288960SSarang Radke * qla4xxx_is_eh_active - check if error handler is running 55068a288960SSarang Radke * @shost: Pointer to SCSI Host struct 55078a288960SSarang Radke * 55088a288960SSarang Radke * This routine finds that if reset host is called in EH 55098a288960SSarang Radke * scenario or from some application like sg_reset 55108a288960SSarang Radke **/ 55118a288960SSarang Radke static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 55128a288960SSarang Radke { 55138a288960SSarang Radke if (shost->shost_state == SHOST_RECOVERY) 55148a288960SSarang Radke return 1; 55158a288960SSarang Radke return 0; 55168a288960SSarang Radke } 55178a288960SSarang Radke 55188a288960SSarang Radke /** 5519afaf5a2dSDavid Somayajulu * qla4xxx_eh_host_reset - kernel callback 5520afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 5521afaf5a2dSDavid Somayajulu * 5522afaf5a2dSDavid Somayajulu * This routine is invoked by the Linux kernel to perform fatal error 5523afaf5a2dSDavid Somayajulu * recovery on the specified adapter. 5524afaf5a2dSDavid Somayajulu **/ 5525afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 5526afaf5a2dSDavid Somayajulu { 5527afaf5a2dSDavid Somayajulu int return_status = FAILED; 5528afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 5529afaf5a2dSDavid Somayajulu 5530b3a271a9SManish Rangankar ha = to_qla_host(cmd->device->host); 5531afaf5a2dSDavid Somayajulu 5532f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 5533f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5534f4f5df23SVikas Chaudhary ha->host_no, __func__)); 55358a288960SSarang Radke 55368a288960SSarang Radke /* Clear outstanding srb in queues */ 55378a288960SSarang Radke if (qla4xxx_is_eh_active(cmd->device->host)) 55388a288960SSarang Radke qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 55398a288960SSarang Radke 5540f4f5df23SVikas Chaudhary return FAILED; 5541f4f5df23SVikas Chaudhary } 5542f4f5df23SVikas Chaudhary 5543c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5544dca05c4cSKaren Higgins "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 5545afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 5546afaf5a2dSDavid Somayajulu 5547afaf5a2dSDavid Somayajulu if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 5548afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 5549afaf5a2dSDavid Somayajulu "DEAD.\n", ha->host_no, cmd->device->channel, 5550afaf5a2dSDavid Somayajulu __func__)); 5551afaf5a2dSDavid Somayajulu 5552afaf5a2dSDavid Somayajulu return FAILED; 5553afaf5a2dSDavid Somayajulu } 5554afaf5a2dSDavid Somayajulu 5555f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 5556f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 5557f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5558f4f5df23SVikas Chaudhary else 5559f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 5560f4f5df23SVikas Chaudhary } 556150a29aecSMike Christie 5562f4f5df23SVikas Chaudhary if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 5563afaf5a2dSDavid Somayajulu return_status = SUCCESS; 5564afaf5a2dSDavid Somayajulu 5565c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 556625985edcSLucas De Marchi return_status == FAILED ? "FAILED" : "SUCCEEDED"); 5567afaf5a2dSDavid Somayajulu 5568afaf5a2dSDavid Somayajulu return return_status; 5569afaf5a2dSDavid Somayajulu } 5570afaf5a2dSDavid Somayajulu 557195d31262SVikas Chaudhary static int qla4xxx_context_reset(struct scsi_qla_host *ha) 557295d31262SVikas Chaudhary { 557395d31262SVikas Chaudhary uint32_t mbox_cmd[MBOX_REG_COUNT]; 557495d31262SVikas Chaudhary uint32_t mbox_sts[MBOX_REG_COUNT]; 557595d31262SVikas Chaudhary struct addr_ctrl_blk_def *acb = NULL; 557695d31262SVikas Chaudhary uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 557795d31262SVikas Chaudhary int rval = QLA_SUCCESS; 557895d31262SVikas Chaudhary dma_addr_t acb_dma; 557995d31262SVikas Chaudhary 558095d31262SVikas Chaudhary acb = dma_alloc_coherent(&ha->pdev->dev, 558195d31262SVikas Chaudhary sizeof(struct addr_ctrl_blk_def), 558295d31262SVikas Chaudhary &acb_dma, GFP_KERNEL); 558395d31262SVikas Chaudhary if (!acb) { 558495d31262SVikas Chaudhary ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 558595d31262SVikas Chaudhary __func__); 558695d31262SVikas Chaudhary rval = -ENOMEM; 558795d31262SVikas Chaudhary goto exit_port_reset; 558895d31262SVikas Chaudhary } 558995d31262SVikas Chaudhary 559095d31262SVikas Chaudhary memset(acb, 0, acb_len); 559195d31262SVikas Chaudhary 559295d31262SVikas Chaudhary rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 559395d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 559495d31262SVikas Chaudhary rval = -EIO; 559595d31262SVikas Chaudhary goto exit_free_acb; 559695d31262SVikas Chaudhary } 559795d31262SVikas Chaudhary 559895d31262SVikas Chaudhary rval = qla4xxx_disable_acb(ha); 559995d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 560095d31262SVikas Chaudhary rval = -EIO; 560195d31262SVikas Chaudhary goto exit_free_acb; 560295d31262SVikas Chaudhary } 560395d31262SVikas Chaudhary 560495d31262SVikas Chaudhary wait_for_completion_timeout(&ha->disable_acb_comp, 560595d31262SVikas Chaudhary DISABLE_ACB_TOV * HZ); 560695d31262SVikas Chaudhary 560795d31262SVikas Chaudhary rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 560895d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 560995d31262SVikas Chaudhary rval = -EIO; 561095d31262SVikas Chaudhary goto exit_free_acb; 561195d31262SVikas Chaudhary } 561295d31262SVikas Chaudhary 561395d31262SVikas Chaudhary exit_free_acb: 561495d31262SVikas Chaudhary dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 561595d31262SVikas Chaudhary acb, acb_dma); 561695d31262SVikas Chaudhary exit_port_reset: 561795d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 561895d31262SVikas Chaudhary rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 561995d31262SVikas Chaudhary return rval; 562095d31262SVikas Chaudhary } 562195d31262SVikas Chaudhary 562295d31262SVikas Chaudhary static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 562395d31262SVikas Chaudhary { 562495d31262SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 562595d31262SVikas Chaudhary int rval = QLA_SUCCESS; 562695d31262SVikas Chaudhary 562795d31262SVikas Chaudhary if (ql4xdontresethba) { 562895d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 562995d31262SVikas Chaudhary __func__)); 563095d31262SVikas Chaudhary rval = -EPERM; 563195d31262SVikas Chaudhary goto exit_host_reset; 563295d31262SVikas Chaudhary } 563395d31262SVikas Chaudhary 563495d31262SVikas Chaudhary rval = qla4xxx_wait_for_hba_online(ha); 563595d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 563695d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unable to reset host " 563795d31262SVikas Chaudhary "adapter\n", __func__)); 563895d31262SVikas Chaudhary rval = -EIO; 563995d31262SVikas Chaudhary goto exit_host_reset; 564095d31262SVikas Chaudhary } 564195d31262SVikas Chaudhary 564295d31262SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 564395d31262SVikas Chaudhary goto recover_adapter; 564495d31262SVikas Chaudhary 564595d31262SVikas Chaudhary switch (reset_type) { 564695d31262SVikas Chaudhary case SCSI_ADAPTER_RESET: 564795d31262SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 564895d31262SVikas Chaudhary break; 564995d31262SVikas Chaudhary case SCSI_FIRMWARE_RESET: 565095d31262SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 565195d31262SVikas Chaudhary if (is_qla8022(ha)) 565295d31262SVikas Chaudhary /* set firmware context reset */ 565395d31262SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, 565495d31262SVikas Chaudhary &ha->dpc_flags); 565595d31262SVikas Chaudhary else { 565695d31262SVikas Chaudhary rval = qla4xxx_context_reset(ha); 565795d31262SVikas Chaudhary goto exit_host_reset; 565895d31262SVikas Chaudhary } 565995d31262SVikas Chaudhary } 566095d31262SVikas Chaudhary break; 566195d31262SVikas Chaudhary } 566295d31262SVikas Chaudhary 566395d31262SVikas Chaudhary recover_adapter: 566495d31262SVikas Chaudhary rval = qla4xxx_recover_adapter(ha); 566595d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 566695d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 566795d31262SVikas Chaudhary __func__)); 566895d31262SVikas Chaudhary rval = -EIO; 566995d31262SVikas Chaudhary } 567095d31262SVikas Chaudhary 567195d31262SVikas Chaudhary exit_host_reset: 567295d31262SVikas Chaudhary return rval; 567395d31262SVikas Chaudhary } 567495d31262SVikas Chaudhary 56752232be0dSLalit Chandivade /* PCI AER driver recovers from all correctable errors w/o 56762232be0dSLalit Chandivade * driver intervention. For uncorrectable errors PCI AER 56772232be0dSLalit Chandivade * driver calls the following device driver's callbacks 56782232be0dSLalit Chandivade * 56792232be0dSLalit Chandivade * - Fatal Errors - link_reset 56802232be0dSLalit Chandivade * - Non-Fatal Errors - driver's pci_error_detected() which 56812232be0dSLalit Chandivade * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 56822232be0dSLalit Chandivade * 56832232be0dSLalit Chandivade * PCI AER driver calls 56842232be0dSLalit Chandivade * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 56852232be0dSLalit Chandivade * returns RECOVERED or NEED_RESET if fw_hung 56862232be0dSLalit Chandivade * NEED_RESET - driver's slot_reset() 56872232be0dSLalit Chandivade * DISCONNECT - device is dead & cannot recover 56882232be0dSLalit Chandivade * RECOVERED - driver's pci_resume() 56892232be0dSLalit Chandivade */ 56902232be0dSLalit Chandivade static pci_ers_result_t 56912232be0dSLalit Chandivade qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 56922232be0dSLalit Chandivade { 56932232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 56942232be0dSLalit Chandivade 56952232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 56962232be0dSLalit Chandivade ha->host_no, __func__, state); 56972232be0dSLalit Chandivade 56982232be0dSLalit Chandivade if (!is_aer_supported(ha)) 56992232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 57002232be0dSLalit Chandivade 57012232be0dSLalit Chandivade switch (state) { 57022232be0dSLalit Chandivade case pci_channel_io_normal: 57032232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 57042232be0dSLalit Chandivade return PCI_ERS_RESULT_CAN_RECOVER; 57052232be0dSLalit Chandivade case pci_channel_io_frozen: 57062232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 57072232be0dSLalit Chandivade qla4xxx_mailbox_premature_completion(ha); 57082232be0dSLalit Chandivade qla4xxx_free_irqs(ha); 57092232be0dSLalit Chandivade pci_disable_device(pdev); 57107b3595dfSVikas Chaudhary /* Return back all IOs */ 57117b3595dfSVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 57122232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 57132232be0dSLalit Chandivade case pci_channel_io_perm_failure: 57142232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 57152232be0dSLalit Chandivade set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 57162232be0dSLalit Chandivade qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 57172232be0dSLalit Chandivade return PCI_ERS_RESULT_DISCONNECT; 57182232be0dSLalit Chandivade } 57192232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 57202232be0dSLalit Chandivade } 57212232be0dSLalit Chandivade 57222232be0dSLalit Chandivade /** 57232232be0dSLalit Chandivade * qla4xxx_pci_mmio_enabled() gets called if 57242232be0dSLalit Chandivade * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 57252232be0dSLalit Chandivade * and read/write to the device still works. 57262232be0dSLalit Chandivade **/ 57272232be0dSLalit Chandivade static pci_ers_result_t 57282232be0dSLalit Chandivade qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 57292232be0dSLalit Chandivade { 57302232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 57312232be0dSLalit Chandivade 57322232be0dSLalit Chandivade if (!is_aer_supported(ha)) 57332232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 57342232be0dSLalit Chandivade 57352232be0dSLalit Chandivade return PCI_ERS_RESULT_RECOVERED; 57362232be0dSLalit Chandivade } 57372232be0dSLalit Chandivade 57387b3595dfSVikas Chaudhary static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 57392232be0dSLalit Chandivade { 57402232be0dSLalit Chandivade uint32_t rval = QLA_ERROR; 57417b3595dfSVikas Chaudhary uint32_t ret = 0; 57422232be0dSLalit Chandivade int fn; 57432232be0dSLalit Chandivade struct pci_dev *other_pdev = NULL; 57442232be0dSLalit Chandivade 57452232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 57462232be0dSLalit Chandivade 57472232be0dSLalit Chandivade set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 57482232be0dSLalit Chandivade 57492232be0dSLalit Chandivade if (test_bit(AF_ONLINE, &ha->flags)) { 57502232be0dSLalit Chandivade clear_bit(AF_ONLINE, &ha->flags); 5751b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 5752b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 57532232be0dSLalit Chandivade qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 57542232be0dSLalit Chandivade } 57552232be0dSLalit Chandivade 57562232be0dSLalit Chandivade fn = PCI_FUNC(ha->pdev->devfn); 57572232be0dSLalit Chandivade while (fn > 0) { 57582232be0dSLalit Chandivade fn--; 57592232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 57602232be0dSLalit Chandivade "func %x\n", ha->host_no, __func__, fn); 57612232be0dSLalit Chandivade /* Get the pci device given the domain, bus, 57622232be0dSLalit Chandivade * slot/function number */ 57632232be0dSLalit Chandivade other_pdev = 57642232be0dSLalit Chandivade pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 57652232be0dSLalit Chandivade ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 57662232be0dSLalit Chandivade fn)); 57672232be0dSLalit Chandivade 57682232be0dSLalit Chandivade if (!other_pdev) 57692232be0dSLalit Chandivade continue; 57702232be0dSLalit Chandivade 57712232be0dSLalit Chandivade if (atomic_read(&other_pdev->enable_cnt)) { 57722232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 57732232be0dSLalit Chandivade "func in enabled state%x\n", ha->host_no, 57742232be0dSLalit Chandivade __func__, fn); 57752232be0dSLalit Chandivade pci_dev_put(other_pdev); 57762232be0dSLalit Chandivade break; 57772232be0dSLalit Chandivade } 57782232be0dSLalit Chandivade pci_dev_put(other_pdev); 57792232be0dSLalit Chandivade } 57802232be0dSLalit Chandivade 57812232be0dSLalit Chandivade /* The first function on the card, the reset owner will 57822232be0dSLalit Chandivade * start & initialize the firmware. The other functions 57832232be0dSLalit Chandivade * on the card will reset the firmware context 57842232be0dSLalit Chandivade */ 57852232be0dSLalit Chandivade if (!fn) { 57862232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 57872232be0dSLalit Chandivade "0x%x is the owner\n", ha->host_no, __func__, 57882232be0dSLalit Chandivade ha->pdev->devfn); 57892232be0dSLalit Chandivade 57902232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 57912232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 57922232be0dSLalit Chandivade QLA82XX_DEV_COLD); 57932232be0dSLalit Chandivade 57942232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, 57952232be0dSLalit Chandivade QLA82XX_IDC_VERSION); 57962232be0dSLalit Chandivade 57972232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 57982232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 579913483730SMike Christie rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 58002232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 58012232be0dSLalit Chandivade 58022232be0dSLalit Chandivade if (rval != QLA_SUCCESS) { 58032232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 58042232be0dSLalit Chandivade "FAILED\n", ha->host_no, __func__); 58052232be0dSLalit Chandivade qla4_8xxx_clear_drv_active(ha); 58062232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 58072232be0dSLalit Chandivade QLA82XX_DEV_FAILED); 58082232be0dSLalit Chandivade } else { 58092232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 58102232be0dSLalit Chandivade "READY\n", ha->host_no, __func__); 58112232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 58122232be0dSLalit Chandivade QLA82XX_DEV_READY); 58132232be0dSLalit Chandivade /* Clear driver state register */ 58142232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0); 58152232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 58167b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 58177b3595dfSVikas Chaudhary if (ret) { 58187b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to " 58197b3595dfSVikas Chaudhary "reserve interrupt %d already in use.\n", 58207b3595dfSVikas Chaudhary ha->pdev->irq); 58217b3595dfSVikas Chaudhary rval = QLA_ERROR; 58227b3595dfSVikas Chaudhary } else { 58232232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 58247b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 58257b3595dfSVikas Chaudhary } 58262232be0dSLalit Chandivade } 58272232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 58282232be0dSLalit Chandivade } else { 58292232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 58302232be0dSLalit Chandivade "the reset owner\n", ha->host_no, __func__, 58312232be0dSLalit Chandivade ha->pdev->devfn); 58322232be0dSLalit Chandivade if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == 58332232be0dSLalit Chandivade QLA82XX_DEV_READY)) { 58342232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 583513483730SMike Christie rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 58367b3595dfSVikas Chaudhary if (rval == QLA_SUCCESS) { 58377b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 58387b3595dfSVikas Chaudhary if (ret) { 58397b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to" 58407b3595dfSVikas Chaudhary " reserve interrupt %d already in" 58417b3595dfSVikas Chaudhary " use.\n", ha->pdev->irq); 58427b3595dfSVikas Chaudhary rval = QLA_ERROR; 58437b3595dfSVikas Chaudhary } else { 58442232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 58457b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 58467b3595dfSVikas Chaudhary } 58477b3595dfSVikas Chaudhary } 58482232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 58492232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 58502232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 58512232be0dSLalit Chandivade } 58522232be0dSLalit Chandivade } 58532232be0dSLalit Chandivade clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 58542232be0dSLalit Chandivade return rval; 58552232be0dSLalit Chandivade } 58562232be0dSLalit Chandivade 58572232be0dSLalit Chandivade static pci_ers_result_t 58582232be0dSLalit Chandivade qla4xxx_pci_slot_reset(struct pci_dev *pdev) 58592232be0dSLalit Chandivade { 58602232be0dSLalit Chandivade pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 58612232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 58622232be0dSLalit Chandivade int rc; 58632232be0dSLalit Chandivade 58642232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 58652232be0dSLalit Chandivade ha->host_no, __func__); 58662232be0dSLalit Chandivade 58672232be0dSLalit Chandivade if (!is_aer_supported(ha)) 58682232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 58692232be0dSLalit Chandivade 58702232be0dSLalit Chandivade /* Restore the saved state of PCIe device - 58712232be0dSLalit Chandivade * BAR registers, PCI Config space, PCIX, MSI, 58722232be0dSLalit Chandivade * IOV states 58732232be0dSLalit Chandivade */ 58742232be0dSLalit Chandivade pci_restore_state(pdev); 58752232be0dSLalit Chandivade 58762232be0dSLalit Chandivade /* pci_restore_state() clears the saved_state flag of the device 58772232be0dSLalit Chandivade * save restored state which resets saved_state flag 58782232be0dSLalit Chandivade */ 58792232be0dSLalit Chandivade pci_save_state(pdev); 58802232be0dSLalit Chandivade 58812232be0dSLalit Chandivade /* Initialize device or resume if in suspended state */ 58822232be0dSLalit Chandivade rc = pci_enable_device(pdev); 58832232be0dSLalit Chandivade if (rc) { 588425985edcSLucas De Marchi ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 58852232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__); 58862232be0dSLalit Chandivade goto exit_slot_reset; 58872232be0dSLalit Chandivade } 58882232be0dSLalit Chandivade 58897b3595dfSVikas Chaudhary ha->isp_ops->disable_intrs(ha); 58902232be0dSLalit Chandivade 58912232be0dSLalit Chandivade if (is_qla8022(ha)) { 58922232be0dSLalit Chandivade if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 58932232be0dSLalit Chandivade ret = PCI_ERS_RESULT_RECOVERED; 58942232be0dSLalit Chandivade goto exit_slot_reset; 58952232be0dSLalit Chandivade } else 58962232be0dSLalit Chandivade goto exit_slot_reset; 58972232be0dSLalit Chandivade } 58982232be0dSLalit Chandivade 58992232be0dSLalit Chandivade exit_slot_reset: 59002232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 59012232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__, ret); 59022232be0dSLalit Chandivade return ret; 59032232be0dSLalit Chandivade } 59042232be0dSLalit Chandivade 59052232be0dSLalit Chandivade static void 59062232be0dSLalit Chandivade qla4xxx_pci_resume(struct pci_dev *pdev) 59072232be0dSLalit Chandivade { 59082232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 59092232be0dSLalit Chandivade int ret; 59102232be0dSLalit Chandivade 59112232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 59122232be0dSLalit Chandivade ha->host_no, __func__); 59132232be0dSLalit Chandivade 59142232be0dSLalit Chandivade ret = qla4xxx_wait_for_hba_online(ha); 59152232be0dSLalit Chandivade if (ret != QLA_SUCCESS) { 59162232be0dSLalit Chandivade ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 59172232be0dSLalit Chandivade "resume I/O from slot/link_reset\n", ha->host_no, 59182232be0dSLalit Chandivade __func__); 59192232be0dSLalit Chandivade } 59202232be0dSLalit Chandivade 59212232be0dSLalit Chandivade pci_cleanup_aer_uncorrect_error_status(pdev); 59222232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 59232232be0dSLalit Chandivade } 59242232be0dSLalit Chandivade 59252232be0dSLalit Chandivade static struct pci_error_handlers qla4xxx_err_handler = { 59262232be0dSLalit Chandivade .error_detected = qla4xxx_pci_error_detected, 59272232be0dSLalit Chandivade .mmio_enabled = qla4xxx_pci_mmio_enabled, 59282232be0dSLalit Chandivade .slot_reset = qla4xxx_pci_slot_reset, 59292232be0dSLalit Chandivade .resume = qla4xxx_pci_resume, 59302232be0dSLalit Chandivade }; 59312232be0dSLalit Chandivade 5932afaf5a2dSDavid Somayajulu static struct pci_device_id qla4xxx_pci_tbl[] = { 5933afaf5a2dSDavid Somayajulu { 5934afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 5935afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 5936afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 5937afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 5938afaf5a2dSDavid Somayajulu }, 5939afaf5a2dSDavid Somayajulu { 5940afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 5941afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 5942afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 5943afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 5944afaf5a2dSDavid Somayajulu }, 5945d915058fSDavid C Somayajulu { 5946d915058fSDavid C Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 5947d915058fSDavid C Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 5948d915058fSDavid C Somayajulu .subvendor = PCI_ANY_ID, 5949d915058fSDavid C Somayajulu .subdevice = PCI_ANY_ID, 5950d915058fSDavid C Somayajulu }, 5951f4f5df23SVikas Chaudhary { 5952f4f5df23SVikas Chaudhary .vendor = PCI_VENDOR_ID_QLOGIC, 5953f4f5df23SVikas Chaudhary .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 5954f4f5df23SVikas Chaudhary .subvendor = PCI_ANY_ID, 5955f4f5df23SVikas Chaudhary .subdevice = PCI_ANY_ID, 5956f4f5df23SVikas Chaudhary }, 5957afaf5a2dSDavid Somayajulu {0, 0}, 5958afaf5a2dSDavid Somayajulu }; 5959afaf5a2dSDavid Somayajulu MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 5960afaf5a2dSDavid Somayajulu 596147975477SAdrian Bunk static struct pci_driver qla4xxx_pci_driver = { 5962afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 5963afaf5a2dSDavid Somayajulu .id_table = qla4xxx_pci_tbl, 5964afaf5a2dSDavid Somayajulu .probe = qla4xxx_probe_adapter, 5965afaf5a2dSDavid Somayajulu .remove = qla4xxx_remove_adapter, 59662232be0dSLalit Chandivade .err_handler = &qla4xxx_err_handler, 5967afaf5a2dSDavid Somayajulu }; 5968afaf5a2dSDavid Somayajulu 5969afaf5a2dSDavid Somayajulu static int __init qla4xxx_module_init(void) 5970afaf5a2dSDavid Somayajulu { 5971afaf5a2dSDavid Somayajulu int ret; 5972afaf5a2dSDavid Somayajulu 5973afaf5a2dSDavid Somayajulu /* Allocate cache for SRBs. */ 5974afaf5a2dSDavid Somayajulu srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 597520c2df83SPaul Mundt SLAB_HWCACHE_ALIGN, NULL); 5976afaf5a2dSDavid Somayajulu if (srb_cachep == NULL) { 5977afaf5a2dSDavid Somayajulu printk(KERN_ERR 5978afaf5a2dSDavid Somayajulu "%s: Unable to allocate SRB cache..." 5979afaf5a2dSDavid Somayajulu "Failing load!\n", DRIVER_NAME); 5980afaf5a2dSDavid Somayajulu ret = -ENOMEM; 5981afaf5a2dSDavid Somayajulu goto no_srp_cache; 5982afaf5a2dSDavid Somayajulu } 5983afaf5a2dSDavid Somayajulu 5984afaf5a2dSDavid Somayajulu /* Derive version string. */ 5985afaf5a2dSDavid Somayajulu strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 598611010fecSAndrew Vasquez if (ql4xextended_error_logging) 5987afaf5a2dSDavid Somayajulu strcat(qla4xxx_version_str, "-debug"); 5988afaf5a2dSDavid Somayajulu 5989afaf5a2dSDavid Somayajulu qla4xxx_scsi_transport = 5990afaf5a2dSDavid Somayajulu iscsi_register_transport(&qla4xxx_iscsi_transport); 5991afaf5a2dSDavid Somayajulu if (!qla4xxx_scsi_transport){ 5992afaf5a2dSDavid Somayajulu ret = -ENODEV; 5993afaf5a2dSDavid Somayajulu goto release_srb_cache; 5994afaf5a2dSDavid Somayajulu } 5995afaf5a2dSDavid Somayajulu 5996afaf5a2dSDavid Somayajulu ret = pci_register_driver(&qla4xxx_pci_driver); 5997afaf5a2dSDavid Somayajulu if (ret) 5998afaf5a2dSDavid Somayajulu goto unregister_transport; 5999afaf5a2dSDavid Somayajulu 6000afaf5a2dSDavid Somayajulu printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 6001afaf5a2dSDavid Somayajulu return 0; 60025ae16db3SDoug Maxey 6003afaf5a2dSDavid Somayajulu unregister_transport: 6004afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 6005afaf5a2dSDavid Somayajulu release_srb_cache: 6006afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 6007afaf5a2dSDavid Somayajulu no_srp_cache: 6008afaf5a2dSDavid Somayajulu return ret; 6009afaf5a2dSDavid Somayajulu } 6010afaf5a2dSDavid Somayajulu 6011afaf5a2dSDavid Somayajulu static void __exit qla4xxx_module_exit(void) 6012afaf5a2dSDavid Somayajulu { 6013afaf5a2dSDavid Somayajulu pci_unregister_driver(&qla4xxx_pci_driver); 6014afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 6015afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 6016afaf5a2dSDavid Somayajulu } 6017afaf5a2dSDavid Somayajulu 6018afaf5a2dSDavid Somayajulu module_init(qla4xxx_module_init); 6019afaf5a2dSDavid Somayajulu module_exit(qla4xxx_module_exit); 6020afaf5a2dSDavid Somayajulu 6021afaf5a2dSDavid Somayajulu MODULE_AUTHOR("QLogic Corporation"); 6022afaf5a2dSDavid Somayajulu MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 6023afaf5a2dSDavid Somayajulu MODULE_LICENSE("GPL"); 6024afaf5a2dSDavid Somayajulu MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 6025