| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Adheer Chandravanshi | 19921 | 43.24% | 21 | 11.17% |
| Harish Zunjarrao | 5537 | 12.02% | 2 | 1.06% |
| Manish Rangankar | 4744 | 10.30% | 15 | 7.98% |
| Vikas Chaudhary | 4506 | 9.78% | 55 | 29.26% |
| Michael Christie | 4294 | 9.32% | 23 | 12.23% |
| Lalit Chandivade | 2563 | 5.56% | 9 | 4.79% |
| David C Somayajulu | 2220 | 4.82% | 5 | 2.66% |
| Nilesh Javali | 1457 | 3.16% | 12 | 6.38% |
| Tej Parkash | 202 | 0.44% | 7 | 3.72% |
| Karen Higgins | 181 | 0.39% | 3 | 1.60% |
| Sarang Radke | 87 | 0.19% | 2 | 1.06% |
| Michael Hernandez | 57 | 0.12% | 1 | 0.53% |
| Prasanna Mumbai | 44 | 0.10% | 1 | 0.53% |
| Poornima Vonti | 43 | 0.09% | 2 | 1.06% |
| Dan Carpenter | 41 | 0.09% | 1 | 0.53% |
| Kees Cook | 36 | 0.08% | 2 | 1.06% |
| Shyam Sunder | 31 | 0.07% | 1 | 0.53% |
| Christoph Hellwig | 23 | 0.05% | 4 | 2.13% |
| Manish Dusane | 15 | 0.03% | 1 | 0.53% |
| Hannes Reinecke | 10 | 0.02% | 1 | 0.53% |
| Yang Hongyang | 8 | 0.02% | 2 | 1.06% |
| Yue haibing | 7 | 0.02% | 1 | 0.53% |
| Rickard Strandqvist | 7 | 0.02% | 1 | 0.53% |
| Jens Axboe | 6 | 0.01% | 1 | 0.53% |
| Benoit Taine | 5 | 0.01% | 1 | 0.53% |
| Andrew Vasquez | 4 | 0.01% | 1 | 0.53% |
| Adrian Bunk | 4 | 0.01% | 1 | 0.53% |
| Tejun Heo | 3 | 0.01% | 1 | 0.53% |
| Lucas De Marchi | 3 | 0.01% | 1 | 0.53% |
| Jeff Garzik | 3 | 0.01% | 1 | 0.53% |
| Christoph Lameter | 2 | 0.00% | 1 | 0.53% |
| Oleksandr Khoshaba | 2 | 0.00% | 1 | 0.53% |
| Anand Gadiyar | 2 | 0.00% | 1 | 0.53% |
| Luis R. Rodriguez | 2 | 0.00% | 1 | 0.53% |
| Souptick Joarder | 1 | 0.00% | 1 | 0.53% |
| Al Viro | 1 | 0.00% | 1 | 0.53% |
| Stephen Hemminger | 1 | 0.00% | 1 | 0.53% |
| Masanari Iida | 1 | 0.00% | 1 | 0.53% |
| Cao jin | 1 | 0.00% | 1 | 0.53% |
| Total | 46075 | 188 |
/* * QLogic iSCSI HBA Driver * Copyright (c) 2003-2013 QLogic Corporation * * See LICENSE.qla4xxx for copyright and licensing details. */ #include <linux/moduleparam.h> #include <linux/slab.h> #include <linux/blkdev.h> #include <linux/iscsi_boot_sysfs.h> #include <linux/inet.h> #include <scsi/scsi_tcq.h> #include <scsi/scsicam.h> #include "ql4_def.h" #include "ql4_version.h" #include "ql4_glbl.h" #include "ql4_dbg.h" #include "ql4_inline.h" #include "ql4_83xx.h" /* * Driver version */ static char qla4xxx_version_str[40]; /* * SRB allocation cache */ static struct kmem_cache *srb_cachep; /* * Module parameter information and variables */ static int ql4xdisablesysfsboot = 1; module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql4xdisablesysfsboot, " Set to disable exporting boot targets to sysfs.\n" "\t\t 0 - Export boot targets\n" "\t\t 1 - Do not export boot targets (Default)"); int ql4xdontresethba; module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql4xdontresethba, " Don't reset the HBA for driver recovery.\n" "\t\t 0 - It will reset HBA (Default)\n" "\t\t 1 - It will NOT reset HBA"); int ql4xextended_error_logging; module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql4xextended_error_logging, " Option to enable extended error logging.\n" "\t\t 0 - no logging (Default)\n" "\t\t 2 - debug logging"); int ql4xenablemsix = 1; module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(ql4xenablemsix, " Set to enable MSI or MSI-X interrupt mechanism.\n" "\t\t 0 = enable INTx interrupt mechanism.\n" "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n" "\t\t 2 = enable MSI interrupt mechanism."); #define QL4_DEF_QDEPTH 32 static int ql4xmaxqdepth = QL4_DEF_QDEPTH; module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql4xmaxqdepth, " Maximum queue depth to report for target devices.\n" "\t\t Default: 32."); static int ql4xqfulltracking = 1; module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql4xqfulltracking, " Enable or disable dynamic tracking and adjustment of\n" "\t\t scsi device queue depth.\n" "\t\t 0 - Disable.\n" "\t\t 1 - Enable. (Default)"); static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; module_param(ql4xsess_recovery_tmo, int, S_IRUGO); MODULE_PARM_DESC(ql4xsess_recovery_tmo, " Target Session Recovery Timeout.\n" "\t\t Default: 120 sec."); int ql4xmdcapmask = 0; module_param(ql4xmdcapmask, int, S_IRUGO); MODULE_PARM_DESC(ql4xmdcapmask, " Set the Minidump driver capture mask level.\n" "\t\t Default is 0 (firmware default capture mask)\n" "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF"); int ql4xenablemd = 1; module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql4xenablemd, " Set to enable minidump.\n" "\t\t 0 - disable minidump\n" "\t\t 1 - enable minidump (Default)"); static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); /* * SCSI host template entry points */ static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); /* * iSCSI template entry points */ static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, enum iscsi_param param, char *buf); static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, enum iscsi_param param, char *buf); static int qla4xxx_host_get_param(struct Scsi_Host *shost, enum iscsi_host_param param, char *buf); static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len); static int qla4xxx_get_iface_param(struct iscsi_iface *iface, enum iscsi_param_type param_type, int param, char *buf); static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, int non_blocking); static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, enum iscsi_param param, char *buf); static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); static struct iscsi_cls_conn * qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, struct iscsi_cls_conn *cls_conn, uint64_t transport_fd, int is_leading); static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); static struct iscsi_cls_session * qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, uint16_t qdepth, uint32_t initial_cmdsn); static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); static void qla4xxx_task_work(struct work_struct *wdata); static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); static int qla4xxx_task_xmit(struct iscsi_task *); static void qla4xxx_task_cleanup(struct iscsi_task *); static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *stats); static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, uint32_t iface_type, uint32_t payload_size, uint32_t pid, struct sockaddr *dst_addr); static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, uint32_t *num_entries, char *buf); static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx); static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len); static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len); /* * SCSI host template entry points */ static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); static int qla4xxx_slave_alloc(struct scsi_device *device); static umode_t qla4_attr_is_visible(int param_type, int param); static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); /* * iSCSI Flash DDB sysfs entry points */ static int qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn, void *data, int len); static int qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, int param, char *buf); static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, int len); static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess); static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn); static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn); static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess); static struct qla4_8xxx_legacy_intr_set legacy_intr[] = QLA82XX_LEGACY_INTR_CONFIG; static struct scsi_host_template qla4xxx_driver_template = { .module = THIS_MODULE, .name = DRIVER_NAME, .proc_name = DRIVER_NAME, .queuecommand = qla4xxx_queuecommand, .eh_abort_handler = qla4xxx_eh_abort, .eh_device_reset_handler = qla4xxx_eh_device_reset, .eh_target_reset_handler = qla4xxx_eh_target_reset, .eh_host_reset_handler = qla4xxx_eh_host_reset, .eh_timed_out = qla4xxx_eh_cmd_timed_out, .slave_alloc = qla4xxx_slave_alloc, .change_queue_depth = scsi_change_queue_depth, .this_id = -1, .cmd_per_lun = 3, .sg_tablesize = SG_ALL, .max_sectors = 0xFFFF, .shost_attrs = qla4xxx_host_attrs, .host_reset = qla4xxx_host_reset, .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, }; static struct iscsi_transport qla4xxx_iscsi_transport = { .owner = THIS_MODULE, .name = DRIVER_NAME, .caps = CAP_TEXT_NEGO | CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | CAP_DATADGST | CAP_LOGIN_OFFLOAD | CAP_MULTI_R2T, .attr_is_visible = qla4_attr_is_visible, .create_session = qla4xxx_session_create, .destroy_session = qla4xxx_session_destroy, .start_conn = qla4xxx_conn_start, .create_conn = qla4xxx_conn_create, .bind_conn = qla4xxx_conn_bind, .stop_conn = iscsi_conn_stop, .destroy_conn = qla4xxx_conn_destroy, .set_param = iscsi_set_param, .get_conn_param = qla4xxx_conn_get_param, .get_session_param = qla4xxx_session_get_param, .get_ep_param = qla4xxx_get_ep_param, .ep_connect = qla4xxx_ep_connect, .ep_poll = qla4xxx_ep_poll, .ep_disconnect = qla4xxx_ep_disconnect, .get_stats = qla4xxx_conn_get_stats, .send_pdu = iscsi_conn_send_pdu, .xmit_task = qla4xxx_task_xmit, .cleanup_task = qla4xxx_task_cleanup, .alloc_pdu = qla4xxx_alloc_pdu, .get_host_param = qla4xxx_host_get_param, .set_iface_param = qla4xxx_iface_set_param, .get_iface_param = qla4xxx_get_iface_param, .bsg_request = qla4xxx_bsg_request, .send_ping = qla4xxx_send_ping, .get_chap = qla4xxx_get_chap_list, .delete_chap = qla4xxx_delete_chap, .set_chap = qla4xxx_set_chap_entry, .get_flashnode_param = qla4xxx_sysfs_ddb_get_param, .set_flashnode_param = qla4xxx_sysfs_ddb_set_param, .new_flashnode = qla4xxx_sysfs_ddb_add, .del_flashnode = qla4xxx_sysfs_ddb_delete, .login_flashnode = qla4xxx_sysfs_ddb_login, .logout_flashnode = qla4xxx_sysfs_ddb_logout, .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid, .get_host_stats = qla4xxx_get_host_stats, }; static struct scsi_transport_template *qla4xxx_scsi_transport; static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha) { u32 reg_val = 0; int rval = QLA_SUCCESS; if (is_qla8022(ha)) reg_val = readl(&ha->qla4_82xx_reg->host_status); else if (is_qla8032(ha) || is_qla8042(ha)) reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER); else reg_val = readw(&ha->reg->ctrl_status); if (reg_val == QL4_ISP_REG_DISCONNECT) rval = QLA_ERROR; return rval; } static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, uint32_t iface_type, uint32_t payload_size, uint32_t pid, struct sockaddr *dst_addr) { struct scsi_qla_host *ha = to_qla_host(shost); struct sockaddr_in *addr; struct sockaddr_in6 *addr6; uint32_t options = 0; uint8_t ipaddr[IPv6_ADDR_LEN]; int rval; memset(ipaddr, 0, IPv6_ADDR_LEN); /* IPv4 to IPv4 */ if ((iface_type == ISCSI_IFACE_TYPE_IPV4) && (dst_addr->sa_family == AF_INET)) { addr = (struct sockaddr_in *)dst_addr; memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN); DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 " "dest: %pI4\n", __func__, &ha->ip_config.ip_address, ipaddr)); rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, ipaddr); if (rval) rval = -EINVAL; } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) && (dst_addr->sa_family == AF_INET6)) { /* IPv6 to IPv6 */ addr6 = (struct sockaddr_in6 *)dst_addr; memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN); options |= PING_IPV6_PROTOCOL_ENABLE; /* Ping using LinkLocal address */ if ((iface_num == 0) || (iface_num == 1)) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping " "src: %pI6 dest: %pI6\n", __func__, &ha->ip_config.ipv6_link_local_addr, ipaddr)); options |= PING_IPV6_LINKLOCAL_ADDR; rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, ipaddr); } else { ql4_printk(KERN_WARNING, ha, "%s: iface num = %d " "not supported\n", __func__, iface_num); rval = -ENOSYS; goto exit_send_ping; } /* * If ping using LinkLocal address fails, try ping using * IPv6 address */ if (rval != QLA_SUCCESS) { options &= ~PING_IPV6_LINKLOCAL_ADDR; if (iface_num == 0) { options |= PING_IPV6_ADDR0; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " "Ping src: %pI6 " "dest: %pI6\n", __func__, &ha->ip_config.ipv6_addr0, ipaddr)); } else if (iface_num == 1) { options |= PING_IPV6_ADDR1; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " "Ping src: %pI6 " "dest: %pI6\n", __func__, &ha->ip_config.ipv6_addr1, ipaddr)); } rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, ipaddr); if (rval) rval = -EINVAL; } } else rval = -ENOSYS; exit_send_ping: return rval; } static umode_t qla4_attr_is_visible(int param_type, int param) { switch (param_type) { case ISCSI_HOST_PARAM: switch (param) { case ISCSI_HOST_PARAM_HWADDRESS: case ISCSI_HOST_PARAM_IPADDRESS: case ISCSI_HOST_PARAM_INITIATOR_NAME: case ISCSI_HOST_PARAM_PORT_STATE: case ISCSI_HOST_PARAM_PORT_SPEED: return S_IRUGO; default: return 0; } case ISCSI_PARAM: switch (param) { case ISCSI_PARAM_PERSISTENT_ADDRESS: case ISCSI_PARAM_PERSISTENT_PORT: case ISCSI_PARAM_CONN_ADDRESS: case ISCSI_PARAM_CONN_PORT: case ISCSI_PARAM_TARGET_NAME: case ISCSI_PARAM_TPGT: case ISCSI_PARAM_TARGET_ALIAS: case ISCSI_PARAM_MAX_BURST: case ISCSI_PARAM_MAX_R2T: case ISCSI_PARAM_FIRST_BURST: case ISCSI_PARAM_MAX_RECV_DLENGTH: case ISCSI_PARAM_MAX_XMIT_DLENGTH: case ISCSI_PARAM_IFACE_NAME: case ISCSI_PARAM_CHAP_OUT_IDX: case ISCSI_PARAM_CHAP_IN_IDX: case ISCSI_PARAM_USERNAME: case ISCSI_PARAM_PASSWORD: case ISCSI_PARAM_USERNAME_IN: case ISCSI_PARAM_PASSWORD_IN: case ISCSI_PARAM_AUTO_SND_TGT_DISABLE: case ISCSI_PARAM_DISCOVERY_SESS: case ISCSI_PARAM_PORTAL_TYPE: case ISCSI_PARAM_CHAP_AUTH_EN: case ISCSI_PARAM_DISCOVERY_LOGOUT_EN: case ISCSI_PARAM_BIDI_CHAP_EN: case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL: case ISCSI_PARAM_DEF_TIME2WAIT: case ISCSI_PARAM_DEF_TIME2RETAIN: case ISCSI_PARAM_HDRDGST_EN: case ISCSI_PARAM_DATADGST_EN: case ISCSI_PARAM_INITIAL_R2T_EN: case ISCSI_PARAM_IMM_DATA_EN: case ISCSI_PARAM_PDU_INORDER_EN: case ISCSI_PARAM_DATASEQ_INORDER_EN: case ISCSI_PARAM_MAX_SEGMENT_SIZE: case ISCSI_PARAM_TCP_TIMESTAMP_STAT: case ISCSI_PARAM_TCP_WSF_DISABLE: case ISCSI_PARAM_TCP_NAGLE_DISABLE: case ISCSI_PARAM_TCP_TIMER_SCALE: case ISCSI_PARAM_TCP_TIMESTAMP_EN: case ISCSI_PARAM_TCP_XMIT_WSF: case ISCSI_PARAM_TCP_RECV_WSF: case ISCSI_PARAM_IP_FRAGMENT_DISABLE: case ISCSI_PARAM_IPV4_TOS: case ISCSI_PARAM_IPV6_TC: case ISCSI_PARAM_IPV6_FLOW_LABEL: case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6: case ISCSI_PARAM_KEEPALIVE_TMO: case ISCSI_PARAM_LOCAL_PORT: case ISCSI_PARAM_ISID: case ISCSI_PARAM_TSID: case ISCSI_PARAM_DEF_TASKMGMT_TMO: case ISCSI_PARAM_ERL: case ISCSI_PARAM_STATSN: case ISCSI_PARAM_EXP_STATSN: case ISCSI_PARAM_DISCOVERY_PARENT_IDX: case ISCSI_PARAM_DISCOVERY_PARENT_TYPE: case ISCSI_PARAM_LOCAL_IPADDR: return S_IRUGO; default: return 0; } case ISCSI_NET_PARAM: switch (param) { case ISCSI_NET_PARAM_IPV4_ADDR: case ISCSI_NET_PARAM_IPV4_SUBNET: case ISCSI_NET_PARAM_IPV4_GW: case ISCSI_NET_PARAM_IPV4_BOOTPROTO: case ISCSI_NET_PARAM_IFACE_ENABLE: case ISCSI_NET_PARAM_IPV6_LINKLOCAL: case ISCSI_NET_PARAM_IPV6_ADDR: case ISCSI_NET_PARAM_IPV6_ROUTER: case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: case ISCSI_NET_PARAM_VLAN_ID: case ISCSI_NET_PARAM_VLAN_PRIORITY: case ISCSI_NET_PARAM_VLAN_ENABLED: case ISCSI_NET_PARAM_MTU: case ISCSI_NET_PARAM_PORT: case ISCSI_NET_PARAM_IPADDR_STATE: case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: case ISCSI_NET_PARAM_DELAYED_ACK_EN: case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: case ISCSI_NET_PARAM_TCP_WSF_DISABLE: case ISCSI_NET_PARAM_TCP_WSF: case ISCSI_NET_PARAM_TCP_TIMER_SCALE: case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: case ISCSI_NET_PARAM_CACHE_ID: case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: case ISCSI_NET_PARAM_IPV4_TOS_EN: case ISCSI_NET_PARAM_IPV4_TOS: case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: case ISCSI_NET_PARAM_REDIRECT_EN: case ISCSI_NET_PARAM_IPV4_TTL: case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: case ISCSI_NET_PARAM_IPV6_MLD_EN: case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: return S_IRUGO; default: return 0; } case ISCSI_IFACE_PARAM: switch (param) { case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: case ISCSI_IFACE_PARAM_HDRDGST_EN: case ISCSI_IFACE_PARAM_DATADGST_EN: case ISCSI_IFACE_PARAM_IMM_DATA_EN: case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: case ISCSI_IFACE_PARAM_PDU_INORDER_EN: case ISCSI_IFACE_PARAM_ERL: case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: case ISCSI_IFACE_PARAM_FIRST_BURST: case ISCSI_IFACE_PARAM_MAX_R2T: case ISCSI_IFACE_PARAM_MAX_BURST: case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: case ISCSI_IFACE_PARAM_INITIATOR_NAME: return S_IRUGO; default: return 0; } case ISCSI_FLASHNODE_PARAM: switch (param) { case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: case ISCSI_FLASHNODE_PORTAL_TYPE: case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: case ISCSI_FLASHNODE_DISCOVERY_SESS: case ISCSI_FLASHNODE_ENTRY_EN: case ISCSI_FLASHNODE_HDR_DGST_EN: case ISCSI_FLASHNODE_DATA_DGST_EN: case ISCSI_FLASHNODE_IMM_DATA_EN: case ISCSI_FLASHNODE_INITIAL_R2T_EN: case ISCSI_FLASHNODE_DATASEQ_INORDER: case ISCSI_FLASHNODE_PDU_INORDER: case ISCSI_FLASHNODE_CHAP_AUTH_EN: case ISCSI_FLASHNODE_SNACK_REQ_EN: case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: case ISCSI_FLASHNODE_BIDI_CHAP_EN: case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: case ISCSI_FLASHNODE_ERL: case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: case ISCSI_FLASHNODE_TCP_WSF_DISABLE: case ISCSI_FLASHNODE_TCP_TIMER_SCALE: case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: case ISCSI_FLASHNODE_IP_FRAG_DISABLE: case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: case ISCSI_FLASHNODE_FIRST_BURST: case ISCSI_FLASHNODE_DEF_TIME2WAIT: case ISCSI_FLASHNODE_DEF_TIME2RETAIN: case ISCSI_FLASHNODE_MAX_R2T: case ISCSI_FLASHNODE_KEEPALIVE_TMO: case ISCSI_FLASHNODE_ISID: case ISCSI_FLASHNODE_TSID: case ISCSI_FLASHNODE_PORT: case ISCSI_FLASHNODE_MAX_BURST: case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: case ISCSI_FLASHNODE_IPADDR: case ISCSI_FLASHNODE_ALIAS: case ISCSI_FLASHNODE_REDIRECT_IPADDR: case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: case ISCSI_FLASHNODE_LOCAL_PORT: case ISCSI_FLASHNODE_IPV4_TOS: case ISCSI_FLASHNODE_IPV6_TC: case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: case ISCSI_FLASHNODE_NAME: case ISCSI_FLASHNODE_TPGT: case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: case ISCSI_FLASHNODE_TCP_XMIT_WSF: case ISCSI_FLASHNODE_TCP_RECV_WSF: case ISCSI_FLASHNODE_CHAP_OUT_IDX: case ISCSI_FLASHNODE_USERNAME: case ISCSI_FLASHNODE_PASSWORD: case ISCSI_FLASHNODE_STATSN: case ISCSI_FLASHNODE_EXP_STATSN: case ISCSI_FLASHNODE_IS_BOOT_TGT: return S_IRUGO; default: return 0; } } return 0; } /** * qla4xxx_create chap_list - Create CHAP list from FLASH * @ha: pointer to adapter structure * * Read flash and make a list of CHAP entries, during login when a CHAP entry * is received, it will be checked in this list. If entry exist then the CHAP * entry index is set in the DDB. If CHAP entry does not exist in this list * then a new entry is added in FLASH in CHAP table and the index obtained is * used in the DDB. **/ static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) { int rval = 0; uint8_t *chap_flash_data = NULL; uint32_t offset; dma_addr_t chap_dma; uint32_t chap_size = 0; if (is_qla40XX(ha)) chap_size = MAX_CHAP_ENTRIES_40XX * sizeof(struct ql4_chap_table); else /* Single region contains CHAP info for both * ports which is divided into half for each port. */ chap_size = ha->hw.flt_chap_size / 2; chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, &chap_dma, GFP_KERNEL); if (!chap_flash_data) { ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); return; } if (is_qla40XX(ha)) { offset = FLASH_CHAP_OFFSET; } else { offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); if (ha->port_num == 1) offset += chap_size; } rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); if (rval != QLA_SUCCESS) goto exit_chap_list; if (ha->chap_list == NULL) ha->chap_list = vmalloc(chap_size); if (ha->chap_list == NULL) { ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); goto exit_chap_list; } memset(ha->chap_list, 0, chap_size); memcpy(ha->chap_list, chap_flash_data, chap_size); exit_chap_list: dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma); } static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha, int16_t chap_index, struct ql4_chap_table **chap_entry) { int rval = QLA_ERROR; int max_chap_entries; if (!ha->chap_list) { ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); rval = QLA_ERROR; goto exit_get_chap; } if (is_qla80XX(ha)) max_chap_entries = (ha->hw.flt_chap_size / 2) / sizeof(struct ql4_chap_table); else max_chap_entries = MAX_CHAP_ENTRIES_40XX; if (chap_index > max_chap_entries) { ql4_printk(KERN_ERR, ha, "Invalid Chap index\n"); rval = QLA_ERROR; goto exit_get_chap; } *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index; if ((*chap_entry)->cookie != __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { rval = QLA_ERROR; *chap_entry = NULL; } else { rval = QLA_SUCCESS; } exit_get_chap: return rval; } /** * qla4xxx_find_free_chap_index - Find the first free chap index * @ha: pointer to adapter structure * @chap_index: CHAP index to be returned * * Find the first free chap index available in the chap table * * Note: Caller should acquire the chap lock before getting here. **/ static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha, uint16_t *chap_index) { int i, rval; int free_index = -1; int max_chap_entries = 0; struct ql4_chap_table *chap_table; if (is_qla80XX(ha)) max_chap_entries = (ha->hw.flt_chap_size / 2) / sizeof(struct ql4_chap_table); else max_chap_entries = MAX_CHAP_ENTRIES_40XX; if (!ha->chap_list) { ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); rval = QLA_ERROR; goto exit_find_chap; } for (i = 0; i < max_chap_entries; i++) { chap_table = (struct ql4_chap_table *)ha->chap_list + i; if ((chap_table->cookie != __constant_cpu_to_le16(CHAP_VALID_COOKIE)) && (i > MAX_RESRV_CHAP_IDX)) { free_index = i; break; } } if (free_index != -1) { *chap_index = free_index; rval = QLA_SUCCESS; } else { rval = QLA_ERROR; } exit_find_chap: return rval; } static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, uint32_t *num_entries, char *buf) { struct scsi_qla_host *ha = to_qla_host(shost); struct ql4_chap_table *chap_table; struct iscsi_chap_rec *chap_rec; int max_chap_entries = 0; int valid_chap_entries = 0; int ret = 0, i; if (is_qla80XX(ha)) max_chap_entries = (ha->hw.flt_chap_size / 2) / sizeof(struct ql4_chap_table); else max_chap_entries = MAX_CHAP_ENTRIES_40XX; ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", __func__, *num_entries, chap_tbl_idx); if (!buf) { ret = -ENOMEM; goto exit_get_chap_list; } qla4xxx_create_chap_list(ha); chap_rec = (struct iscsi_chap_rec *) buf; mutex_lock(&ha->chap_sem); for (i = chap_tbl_idx; i < max_chap_entries; i++) { chap_table = (struct ql4_chap_table *)ha->chap_list + i; if (chap_table->cookie != __constant_cpu_to_le16(CHAP_VALID_COOKIE)) continue; chap_rec->chap_tbl_idx = i; strlcpy(chap_rec->username, chap_table->name, ISCSI_CHAP_AUTH_NAME_MAX_LEN); strlcpy(chap_rec->password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); chap_rec->password_length = chap_table->secret_len; if (chap_table->flags & BIT_7) /* local */ chap_rec->chap_type = CHAP_TYPE_OUT; if (chap_table->flags & BIT_6) /* peer */ chap_rec->chap_type = CHAP_TYPE_IN; chap_rec++; valid_chap_entries++; if (valid_chap_entries == *num_entries) break; else continue; } mutex_unlock(&ha->chap_sem); exit_get_chap_list: ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", __func__, valid_chap_entries); *num_entries = valid_chap_entries; return ret; } static int __qla4xxx_is_chap_active(struct device *dev, void *data) { int ret = 0; uint16_t *chap_tbl_idx = (uint16_t *) data; struct iscsi_cls_session *cls_session; struct iscsi_session *sess; struct ddb_entry *ddb_entry; if (!iscsi_is_session_dev(dev)) goto exit_is_chap_active; cls_session = iscsi_dev_to_session(dev); sess = cls_session->dd_data; ddb_entry = sess->dd_data; if (iscsi_session_chkready(cls_session)) goto exit_is_chap_active; if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) ret = 1; exit_is_chap_active: return ret; } static int qla4xxx_is_chap_active(struct Scsi_Host *shost, uint16_t chap_tbl_idx) { int ret = 0; ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, __qla4xxx_is_chap_active); return ret; } static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) { struct scsi_qla_host *ha = to_qla_host(shost); struct ql4_chap_table *chap_table; dma_addr_t chap_dma; int max_chap_entries = 0; uint32_t offset = 0; uint32_t chap_size; int ret = 0; chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); if (chap_table == NULL) return -ENOMEM; if (is_qla80XX(ha)) max_chap_entries = (ha->hw.flt_chap_size / 2) / sizeof(struct ql4_chap_table); else max_chap_entries = MAX_CHAP_ENTRIES_40XX; if (chap_tbl_idx > max_chap_entries) { ret = -EINVAL; goto exit_delete_chap; } /* Check if chap index is in use. * If chap is in use don't delet chap entry */ ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); if (ret) { ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " "delete from flash\n", chap_tbl_idx); ret = -EBUSY; goto exit_delete_chap; } chap_size = sizeof(struct ql4_chap_table); if (is_qla40XX(ha)) offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); else { offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); /* flt_chap_size is CHAP table size for both ports * so divide it by 2 to calculate the offset for second port */ if (ha->port_num == 1) offset += (ha->hw.flt_chap_size / 2); offset += (chap_tbl_idx * chap_size); } ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); if (ret != QLA_SUCCESS) { ret = -EINVAL; goto exit_delete_chap; } DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", __le16_to_cpu(chap_table->cookie))); if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); goto exit_delete_chap; } chap_table->cookie = __constant_cpu_to_le16(0xFFFF); offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * sizeof(struct ql4_chap_table)); ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, FLASH_OPT_RMW_COMMIT); if (ret == QLA_SUCCESS && ha->chap_list) { mutex_lock(&ha->chap_sem); /* Update ha chap_list cache */ memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, chap_table, sizeof(struct ql4_chap_table)); mutex_unlock(&ha->chap_sem); } if (ret != QLA_SUCCESS) ret = -EINVAL; exit_delete_chap: dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); return ret; } /** * qla4xxx_set_chap_entry - Make chap entry with given information * @shost: pointer to host * @data: chap info - credentials, index and type to make chap entry * @len: length of data * * Add or update chap entry with the given information **/ static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len) { struct scsi_qla_host *ha = to_qla_host(shost); struct iscsi_chap_rec chap_rec; struct ql4_chap_table *chap_entry = NULL; struct iscsi_param_info *param_info; struct nlattr *attr; int max_chap_entries = 0; int type; int rem = len; int rc = 0; int size; memset(&chap_rec, 0, sizeof(chap_rec)); nla_for_each_attr(attr, data, len, rem) { param_info = nla_data(attr); switch (param_info->param) { case ISCSI_CHAP_PARAM_INDEX: chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value; break; case ISCSI_CHAP_PARAM_CHAP_TYPE: chap_rec.chap_type = param_info->value[0]; break; case ISCSI_CHAP_PARAM_USERNAME: size = min_t(size_t, sizeof(chap_rec.username), param_info->len); memcpy(chap_rec.username, param_info->value, size); break; case ISCSI_CHAP_PARAM_PASSWORD: size = min_t(size_t, sizeof(chap_rec.password), param_info->len); memcpy(chap_rec.password, param_info->value, size); break; case ISCSI_CHAP_PARAM_PASSWORD_LEN: chap_rec.password_length = param_info->value[0]; break; default: ql4_printk(KERN_ERR, ha, "%s: No such sysfs attribute\n", __func__); rc = -ENOSYS; goto exit_set_chap; }; } if (chap_rec.chap_type == CHAP_TYPE_IN) type = BIDI_CHAP; else type = LOCAL_CHAP; if (is_qla80XX(ha)) max_chap_entries = (ha->hw.flt_chap_size / 2) / sizeof(struct ql4_chap_table); else max_chap_entries = MAX_CHAP_ENTRIES_40XX; mutex_lock(&ha->chap_sem); if (chap_rec.chap_tbl_idx < max_chap_entries) { rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx, &chap_entry); if (!rc) { if (!(type == qla4xxx_get_chap_type(chap_entry))) { ql4_printk(KERN_INFO, ha, "Type mismatch for CHAP entry %d\n", chap_rec.chap_tbl_idx); rc = -EINVAL; goto exit_unlock_chap; } /* If chap index is in use then don't modify it */ rc = qla4xxx_is_chap_active(shost, chap_rec.chap_tbl_idx); if (rc) { ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use\n", chap_rec.chap_tbl_idx); rc = -EBUSY; goto exit_unlock_chap; } } } else { rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx); if (rc) { ql4_printk(KERN_INFO, ha, "CHAP entry not available\n"); rc = -EBUSY; goto exit_unlock_chap; } } rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password, chap_rec.chap_tbl_idx, type); exit_unlock_chap: mutex_unlock(&ha->chap_sem); exit_set_chap: return rc; } static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len) { struct scsi_qla_host *ha = to_qla_host(shost); struct iscsi_offload_host_stats *host_stats = NULL; int host_stats_size; int ret = 0; int ddb_idx = 0; struct ql_iscsi_stats *ql_iscsi_stats = NULL; int stats_size; dma_addr_t iscsi_stats_dma; DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__)); host_stats_size = sizeof(struct iscsi_offload_host_stats); if (host_stats_size != len) { ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n", __func__, len, host_stats_size); ret = -EINVAL; goto exit_host_stats; } host_stats = (struct iscsi_offload_host_stats *)buf; if (!buf) { ret = -ENOMEM; goto exit_host_stats; } stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, &iscsi_stats_dma, GFP_KERNEL); if (!ql_iscsi_stats) { ql4_printk(KERN_ERR, ha, "Unable to allocate memory for iscsi stats\n"); ret = -ENOMEM; goto exit_host_stats; } ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size, iscsi_stats_dma); if (ret != QLA_SUCCESS) { ql4_printk(KERN_ERR, ha, "Unable to retrieve iscsi stats\n"); ret = -EIO; goto exit_host_stats; } host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames); host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes); host_stats->mactx_multicast_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames); host_stats->mactx_broadcast_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames); host_stats->mactx_pause_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames); host_stats->mactx_control_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames); host_stats->mactx_deferral = le64_to_cpu(ql_iscsi_stats->mac_tx_deferral); host_stats->mactx_excess_deferral = le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral); host_stats->mactx_late_collision = le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision); host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort); host_stats->mactx_single_collision = le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision); host_stats->mactx_multiple_collision = le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision); host_stats->mactx_collision = le64_to_cpu(ql_iscsi_stats->mac_tx_collision); host_stats->mactx_frames_dropped = le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped); host_stats->mactx_jumbo_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames); host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames); host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes); host_stats->macrx_unknown_control_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames); host_stats->macrx_pause_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames); host_stats->macrx_control_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames); host_stats->macrx_dribble = le64_to_cpu(ql_iscsi_stats->mac_rx_dribble); host_stats->macrx_frame_length_error = le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error); host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber); host_stats->macrx_carrier_sense_error = le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error); host_stats->macrx_frame_discarded = le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded); host_stats->macrx_frames_dropped = le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped); host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error); host_stats->mac_encoding_error = le64_to_cpu(ql_iscsi_stats->mac_encoding_error); host_stats->macrx_length_error_large = le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large); host_stats->macrx_length_error_small = le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small); host_stats->macrx_multicast_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames); host_stats->macrx_broadcast_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames); host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets); host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes); host_stats->iptx_fragments = le64_to_cpu(ql_iscsi_stats->ip_tx_fragments); host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets); host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes); host_stats->iprx_fragments = le64_to_cpu(ql_iscsi_stats->ip_rx_fragments); host_stats->ip_datagram_reassembly = le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly); host_stats->ip_invalid_address_error = le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error); host_stats->ip_error_packets = le64_to_cpu(ql_iscsi_stats->ip_error_packets); host_stats->ip_fragrx_overlap = le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap); host_stats->ip_fragrx_outoforder = le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder); host_stats->ip_datagram_reassembly_timeout = le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout); host_stats->ipv6tx_packets = le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets); host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes); host_stats->ipv6tx_fragments = le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments); host_stats->ipv6rx_packets = le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets); host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes); host_stats->ipv6rx_fragments = le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments); host_stats->ipv6_datagram_reassembly = le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly); host_stats->ipv6_invalid_address_error = le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error); host_stats->ipv6_error_packets = le64_to_cpu(ql_iscsi_stats->ipv6_error_packets); host_stats->ipv6_fragrx_overlap = le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap); host_stats->ipv6_fragrx_outoforder = le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder); host_stats->ipv6_datagram_reassembly_timeout = le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout); host_stats->tcptx_segments = le64_to_cpu(ql_iscsi_stats->tcp_tx_segments); host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes); host_stats->tcprx_segments = le64_to_cpu(ql_iscsi_stats->tcp_rx_segments); host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte); host_stats->tcp_duplicate_ack_retx = le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx); host_stats->tcp_retx_timer_expired = le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired); host_stats->tcprx_duplicate_ack = le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack); host_stats->tcprx_pure_ackr = le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr); host_stats->tcptx_delayed_ack = le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack); host_stats->tcptx_pure_ack = le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack); host_stats->tcprx_segment_error = le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error); host_stats->tcprx_segment_outoforder = le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder); host_stats->tcprx_window_probe = le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe); host_stats->tcprx_window_update = le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update); host_stats->tcptx_window_probe_persist = le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist); host_stats->ecc_error_correction = le64_to_cpu(ql_iscsi_stats->ecc_error_correction); host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx); host_stats->iscsi_data_bytes_tx = le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx); host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx); host_stats->iscsi_data_bytes_rx = le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx); host_stats->iscsi_io_completed = le64_to_cpu(ql_iscsi_stats->iscsi_io_completed); host_stats->iscsi_unexpected_io_rx = le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx); host_stats->iscsi_format_error = le64_to_cpu(ql_iscsi_stats->iscsi_format_error); host_stats->iscsi_hdr_digest_error = le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error); host_stats->iscsi_data_digest_error = le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error); host_stats->iscsi_sequence_error = le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error); exit_host_stats: if (ql_iscsi_stats) dma_free_coherent(&ha->pdev->dev, host_stats_size, ql_iscsi_stats, iscsi_stats_dma); ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n", __func__); return ret; } static int qla4xxx_get_iface_param(struct iscsi_iface *iface, enum iscsi_param_type param_type, int param, char *buf) { struct Scsi_Host *shost = iscsi_iface_to_shost(iface); struct scsi_qla_host *ha = to_qla_host(shost); int ival; char *pval = NULL; int len = -ENOSYS; if (param_type == ISCSI_NET_PARAM) { switch (param) { case ISCSI_NET_PARAM_IPV4_ADDR: len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); break; case ISCSI_NET_PARAM_IPV4_SUBNET: len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); break; case ISCSI_NET_PARAM_IPV4_GW: len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); break; case ISCSI_NET_PARAM_IFACE_ENABLE: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { OP_STATE(ha->ip_config.ipv4_options, IPOPT_IPV4_PROTOCOL_ENABLE, pval); } else { OP_STATE(ha->ip_config.ipv6_options, IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval); } len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_BOOTPROTO: len = sprintf(buf, "%s\n", (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? "dhcp" : "static"); break; case ISCSI_NET_PARAM_IPV6_ADDR: if (iface->iface_num == 0) len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); if (iface->iface_num == 1) len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); break; case ISCSI_NET_PARAM_IPV6_LINKLOCAL: len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_link_local_addr); break; case ISCSI_NET_PARAM_IPV6_ROUTER: len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_default_router_addr); break; case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: pval = (ha->ip_config.ipv6_addl_options & IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? "nd" : "static"; len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: pval = (ha->ip_config.ipv6_addl_options & IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? "auto" : "static"; len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_VLAN_ID: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) ival = ha->ip_config.ipv4_vlan_tag & ISCSI_MAX_VLAN_ID; else ival = ha->ip_config.ipv6_vlan_tag & ISCSI_MAX_VLAN_ID; len = sprintf(buf, "%d\n", ival); break; case ISCSI_NET_PARAM_VLAN_PRIORITY: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) ival = (ha->ip_config.ipv4_vlan_tag >> 13) & ISCSI_MAX_VLAN_PRIORITY; else ival = (ha->ip_config.ipv6_vlan_tag >> 13) & ISCSI_MAX_VLAN_PRIORITY; len = sprintf(buf, "%d\n", ival); break; case ISCSI_NET_PARAM_VLAN_ENABLED: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { OP_STATE(ha->ip_config.ipv4_options, IPOPT_VLAN_TAGGING_ENABLE, pval); } else { OP_STATE(ha->ip_config.ipv6_options, IPV6_OPT_VLAN_TAGGING_ENABLE, pval); } len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_MTU: len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); break; case ISCSI_NET_PARAM_PORT: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port); else len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port); break; case ISCSI_NET_PARAM_IPADDR_STATE: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { pval = iscsi_get_ipaddress_state_name( ha->ip_config.ipv4_addr_state); } else { if (iface->iface_num == 0) pval = iscsi_get_ipaddress_state_name( ha->ip_config.ipv6_addr0_state); else if (iface->iface_num == 1) pval = iscsi_get_ipaddress_state_name( ha->ip_config.ipv6_addr1_state); } len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: pval = iscsi_get_ipaddress_state_name( ha->ip_config.ipv6_link_local_state); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: pval = iscsi_get_router_state_name( ha->ip_config.ipv6_default_router_state); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_DELAYED_ACK_EN: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { OP_STATE(~ha->ip_config.tcp_options, TCPOPT_DELAYED_ACK_DISABLE, pval); } else { OP_STATE(~ha->ip_config.ipv6_tcp_options, IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval); } len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { OP_STATE(~ha->ip_config.tcp_options, TCPOPT_NAGLE_ALGO_DISABLE, pval); } else { OP_STATE(~ha->ip_config.ipv6_tcp_options, IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval); } len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_TCP_WSF_DISABLE: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { OP_STATE(~ha->ip_config.tcp_options, TCPOPT_WINDOW_SCALE_DISABLE, pval); } else { OP_STATE(~ha->ip_config.ipv6_tcp_options, IPV6_TCPOPT_WINDOW_SCALE_DISABLE, pval); } len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_TCP_WSF: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) len = sprintf(buf, "%d\n", ha->ip_config.tcp_wsf); else len = sprintf(buf, "%d\n", ha->ip_config.ipv6_tcp_wsf); break; case ISCSI_NET_PARAM_TCP_TIMER_SCALE: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) ival = (ha->ip_config.tcp_options & TCPOPT_TIMER_SCALE) >> 1; else ival = (ha->ip_config.ipv6_tcp_options & IPV6_TCPOPT_TIMER_SCALE) >> 1; len = sprintf(buf, "%d\n", ival); break; case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { OP_STATE(ha->ip_config.tcp_options, TCPOPT_TIMESTAMP_ENABLE, pval); } else { OP_STATE(ha->ip_config.ipv6_tcp_options, IPV6_TCPOPT_TIMESTAMP_EN, pval); } len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_CACHE_ID: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) len = sprintf(buf, "%d\n", ha->ip_config.ipv4_cache_id); else len = sprintf(buf, "%d\n", ha->ip_config.ipv6_cache_id); break; case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: OP_STATE(ha->ip_config.tcp_options, TCPOPT_DNS_SERVER_IP_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: OP_STATE(ha->ip_config.tcp_options, TCPOPT_SLP_DA_INFO_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_TOS_EN: OP_STATE(ha->ip_config.ipv4_options, IPOPT_IPV4_TOS_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_TOS: len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos); break; case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: OP_STATE(ha->ip_config.ipv4_options, IPOPT_GRAT_ARP_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: pval = (ha->ip_config.ipv4_alt_cid_len) ? (char *)ha->ip_config.ipv4_alt_cid : ""; len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: OP_STATE(ha->ip_config.ipv4_options, IPOPT_REQ_VID_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: OP_STATE(ha->ip_config.ipv4_options, IPOPT_USE_VID_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: pval = (ha->ip_config.ipv4_vid_len) ? (char *)ha->ip_config.ipv4_vid : ""; len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: OP_STATE(ha->ip_config.ipv4_options, IPOPT_LEARN_IQN_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: OP_STATE(~ha->ip_config.ipv4_options, IPOPT_FRAGMENTATION_DISABLE, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: OP_STATE(ha->ip_config.ipv4_options, IPOPT_IN_FORWARD_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_REDIRECT_EN: if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { OP_STATE(ha->ip_config.ipv4_options, IPOPT_ARP_REDIRECT_EN, pval); } else { OP_STATE(ha->ip_config.ipv6_options, IPV6_OPT_REDIRECT_EN, pval); } len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV4_TTL: len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl); break; case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: OP_STATE(ha->ip_config.ipv6_options, IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV6_MLD_EN: OP_STATE(ha->ip_config.ipv6_addl_options, IPV6_ADDOPT_MLD_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl); break; case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: len = sprintf(buf, "%d\n", ha->ip_config.ipv6_traffic_class); break; case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: len = sprintf(buf, "%d\n", ha->ip_config.ipv6_hop_limit); break; case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: len = sprintf(buf, "%d\n", ha->ip_config.ipv6_nd_reach_time); break; case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: len = sprintf(buf, "%d\n", ha->ip_config.ipv6_nd_rexmit_timer); break; case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: len = sprintf(buf, "%d\n", ha->ip_config.ipv6_nd_stale_timeout); break; case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: len = sprintf(buf, "%d\n", ha->ip_config.ipv6_dup_addr_detect_count); break; case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: len = sprintf(buf, "%d\n", ha->ip_config.ipv6_gw_advrt_mtu); break; default: len = -ENOSYS; } } else if (param_type == ISCSI_IFACE_PARAM) { switch (param) { case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: len = sprintf(buf, "%d\n", ha->ip_config.def_timeout); break; case ISCSI_IFACE_PARAM_HDRDGST_EN: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_HEADER_DIGEST_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_DATADGST_EN: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_DATA_DIGEST_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_IMM_DATA_EN: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_IMMEDIATE_DATA_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_INITIAL_R2T_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_DATA_SEQ_INORDER_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_PDU_INORDER_EN: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_DATA_PDU_INORDER_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_ERL: len = sprintf(buf, "%d\n", (ha->ip_config.iscsi_options & ISCSIOPTS_ERL)); break; case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: len = sprintf(buf, "%u\n", ha->ip_config.iscsi_max_pdu_size * BYTE_UNITS); break; case ISCSI_IFACE_PARAM_FIRST_BURST: len = sprintf(buf, "%u\n", ha->ip_config.iscsi_first_burst_len * BYTE_UNITS); break; case ISCSI_IFACE_PARAM_MAX_R2T: len = sprintf(buf, "%d\n", ha->ip_config.iscsi_max_outstnd_r2t); break; case ISCSI_IFACE_PARAM_MAX_BURST: len = sprintf(buf, "%u\n", ha->ip_config.iscsi_max_burst_len * BYTE_UNITS); break; case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_CHAP_AUTH_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_BIDI_CHAP_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_DISCOVERY_AUTH_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: OP_STATE(ha->ip_config.iscsi_options, ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval); len = sprintf(buf, "%s\n", pval); break; case ISCSI_IFACE_PARAM_INITIATOR_NAME: len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name); break; default: len = -ENOSYS; } } return len; } static struct iscsi_endpoint * qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, int non_blocking) { int ret; struct iscsi_endpoint *ep; struct qla_endpoint *qla_ep; struct scsi_qla_host *ha; struct sockaddr_in *addr; struct sockaddr_in6 *addr6; if (!shost) { ret = -ENXIO; pr_err("%s: shost is NULL\n", __func__); return ERR_PTR(ret); } ha = iscsi_host_priv(shost); ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); if (!ep) { ret = -ENOMEM; return ERR_PTR(ret); } qla_ep = ep->dd_data; memset(qla_ep, 0, sizeof(struct qla_endpoint)); if (dst_addr->sa_family == AF_INET) { memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); addr = (struct sockaddr_in *)&qla_ep->dst_addr; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, (char *)&addr->sin_addr)); } else if (dst_addr->sa_family == AF_INET6) { memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in6)); addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, (char *)&addr6->sin6_addr)); } else { ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n", __func__); } qla_ep->host = shost; return ep; } static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) { struct qla_endpoint *qla_ep; struct scsi_qla_host *ha; int ret = 0; qla_ep = ep->dd_data; ha = to_qla_host(qla_ep->host); DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no)); if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) ret = 1; return ret; } static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) { struct qla_endpoint *qla_ep; struct scsi_qla_host *ha; qla_ep = ep->dd_data; ha = to_qla_host(qla_ep->host); DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, ha->host_no)); iscsi_destroy_endpoint(ep); } static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, enum iscsi_param param, char *buf) { struct qla_endpoint *qla_ep = ep->dd_data; struct sockaddr *dst_addr; struct scsi_qla_host *ha; if (!qla_ep) return -ENOTCONN; ha = to_qla_host(qla_ep->host); DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, ha->host_no)); switch (param) { case ISCSI_PARAM_CONN_PORT: case ISCSI_PARAM_CONN_ADDRESS: dst_addr = (struct sockaddr *)&qla_ep->dst_addr; if (!dst_addr) return -ENOTCONN; return iscsi_conn_get_addr_param((struct sockaddr_storage *) &qla_ep->dst_addr, param, buf); default: return -ENOSYS; } } static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *stats) { struct iscsi_session *sess; struct iscsi_cls_session *cls_sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; struct ql_iscsi_stats *ql_iscsi_stats; int stats_size; int ret; dma_addr_t iscsi_stats_dma; cls_sess = iscsi_conn_to_session(cls_conn); sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, ha->host_no)); stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); /* Allocate memory */ ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, &iscsi_stats_dma, GFP_KERNEL); if (!ql_iscsi_stats) { ql4_printk(KERN_ERR, ha, "Unable to allocate memory for iscsi stats\n"); goto exit_get_stats; } ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, iscsi_stats_dma); if (ret != QLA_SUCCESS) { ql4_printk(KERN_ERR, ha, "Unable to retrieve iscsi stats\n"); goto free_stats; } /* octets */ stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); /* xmit pdus */ stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); /* recv pdus */ stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); stats->logoutrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); free_stats: dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, iscsi_stats_dma); exit_get_stats: return; } static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) { struct iscsi_cls_session *session; struct iscsi_session *sess; unsigned long flags; enum blk_eh_timer_return ret = BLK_EH_DONE; session = starget_to_session(scsi_target(sc->device)); sess = session->dd_data; spin_lock_irqsave(&session->lock, flags); if (session->state == ISCSI_SESSION_FAILED) ret = BLK_EH_RESET_TIMER; spin_unlock_irqrestore(&session->lock, flags); return ret; } static void qla4xxx_set_port_speed(struct Scsi_Host *shost) { struct scsi_qla_host *ha = to_qla_host(shost); struct iscsi_cls_host *ihost = shost->shost_data; uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; qla4xxx_get_firmware_state(ha); switch (ha->addl_fw_state & 0x0F00) { case FW_ADDSTATE_LINK_SPEED_10MBPS: speed = ISCSI_PORT_SPEED_10MBPS; break; case FW_ADDSTATE_LINK_SPEED_100MBPS: speed = ISCSI_PORT_SPEED_100MBPS; break; case FW_ADDSTATE_LINK_SPEED_1GBPS: speed = ISCSI_PORT_SPEED_1GBPS; break; case FW_ADDSTATE_LINK_SPEED_10GBPS: speed = ISCSI_PORT_SPEED_10GBPS; break; } ihost->port_speed = speed; } static void qla4xxx_set_port_state(struct Scsi_Host *shost) { struct scsi_qla_host *ha = to_qla_host(shost); struct iscsi_cls_host *ihost = shost->shost_data; uint32_t state = ISCSI_PORT_STATE_DOWN; if (test_bit(AF_LINK_UP, &ha->flags)) state = ISCSI_PORT_STATE_UP; ihost->port_state = state; } static int qla4xxx_host_get_param(struct Scsi_Host *shost, enum iscsi_host_param param, char *buf) { struct scsi_qla_host *ha = to_qla_host(shost); int len; switch (param) { case ISCSI_HOST_PARAM_HWADDRESS: len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); break; case ISCSI_HOST_PARAM_IPADDRESS: len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); break; case ISCSI_HOST_PARAM_INITIATOR_NAME: len = sprintf(buf, "%s\n", ha->name_string); break; case ISCSI_HOST_PARAM_PORT_STATE: qla4xxx_set_port_state(shost); len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); break; case ISCSI_HOST_PARAM_PORT_SPEED: qla4xxx_set_port_speed(shost); len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); break; default: return -ENOSYS; } return len; } static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) { if (ha->iface_ipv4) return; /* IPv4 */ ha->iface_ipv4 = iscsi_create_iface(ha->host, &qla4xxx_iscsi_transport, ISCSI_IFACE_TYPE_IPV4, 0, 0); if (!ha->iface_ipv4) ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " "iface0.\n"); } static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) { if (!ha->iface_ipv6_0) /* IPv6 iface-0 */ ha->iface_ipv6_0 = iscsi_create_iface(ha->host, &qla4xxx_iscsi_transport, ISCSI_IFACE_TYPE_IPV6, 0, 0); if (!ha->iface_ipv6_0) ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " "iface0.\n"); if (!ha->iface_ipv6_1) /* IPv6 iface-1 */ ha->iface_ipv6_1 = iscsi_create_iface(ha->host, &qla4xxx_iscsi_transport, ISCSI_IFACE_TYPE_IPV6, 1, 0); if (!ha->iface_ipv6_1) ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " "iface1.\n"); } static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) { if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) qla4xxx_create_ipv4_iface(ha); if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) qla4xxx_create_ipv6_iface(ha); } static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) { if (ha->iface_ipv4) { iscsi_destroy_iface(ha->iface_ipv4); ha->iface_ipv4 = NULL; } } static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) { if (ha->iface_ipv6_0) { iscsi_destroy_iface(ha->iface_ipv6_0); ha->iface_ipv6_0 = NULL; } if (ha->iface_ipv6_1) { iscsi_destroy_iface(ha->iface_ipv6_1); ha->iface_ipv6_1 = NULL; } } static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) { qla4xxx_destroy_ipv4_iface(ha); qla4xxx_destroy_ipv6_iface(ha); } static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, struct iscsi_iface_param_info *iface_param, struct addr_ctrl_blk *init_fw_cb) { /* * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. * iface_num 1 is valid only for IPv6 Addr. */ switch (iface_param->param) { case ISCSI_NET_PARAM_IPV6_ADDR: if (iface_param->iface_num & 0x1) /* IPv6 Addr 1 */ memcpy(init_fw_cb->ipv6_addr1, iface_param->value, sizeof(init_fw_cb->ipv6_addr1)); else /* IPv6 Addr 0 */ memcpy(init_fw_cb->ipv6_addr0, iface_param->value, sizeof(init_fw_cb->ipv6_addr0)); break; case ISCSI_NET_PARAM_IPV6_LINKLOCAL: if (iface_param->iface_num & 0x1) break; memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], sizeof(init_fw_cb->ipv6_if_id)); break; case ISCSI_NET_PARAM_IPV6_ROUTER: if (iface_param->iface_num & 0x1) break; memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); break; case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: /* Autocfg applies to even interface */ if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); else ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for IPv6 addr\n"); break; case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: /* Autocfg applies to even interface */ if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); else if (iface_param->value[0] == ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); else ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for IPv6 linklocal addr\n"); break; case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: /* Autocfg applies to even interface */ if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); break; case ISCSI_NET_PARAM_IFACE_ENABLE: if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { init_fw_cb->ipv6_opts |= cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); qla4xxx_create_ipv6_iface(ha); } else { init_fw_cb->ipv6_opts &= cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 0xFFFF); qla4xxx_destroy_ipv6_iface(ha); } break; case ISCSI_NET_PARAM_VLAN_TAG: if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) break; init_fw_cb->ipv6_vlan_tag = cpu_to_be16(*(uint16_t *)iface_param->value); break; case ISCSI_NET_PARAM_VLAN_ENABLED: if (iface_param->value[0] == ISCSI_VLAN_ENABLE) init_fw_cb->ipv6_opts |= cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); else init_fw_cb->ipv6_opts &= cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); break; case ISCSI_NET_PARAM_MTU: init_fw_cb->eth_mtu_size = cpu_to_le16(*(uint16_t *)iface_param->value); break; case ISCSI_NET_PARAM_PORT: /* Autocfg applies to even interface */ if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_port = cpu_to_le16(*(uint16_t *)iface_param->value); break; case ISCSI_NET_PARAM_DELAYED_ACK_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) init_fw_cb->ipv6_tcp_opts |= cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE); else init_fw_cb->ipv6_tcp_opts &= cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE & 0xFFFF); break; case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) init_fw_cb->ipv6_tcp_opts |= cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE); else init_fw_cb->ipv6_tcp_opts &= cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE); break; case ISCSI_NET_PARAM_TCP_WSF_DISABLE: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) init_fw_cb->ipv6_tcp_opts |= cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE); else init_fw_cb->ipv6_tcp_opts &= cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE); break; case ISCSI_NET_PARAM_TCP_WSF: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_tcp_wsf = iface_param->value[0]; break; case ISCSI_NET_PARAM_TCP_TIMER_SCALE: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_tcp_opts &= cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE); init_fw_cb->ipv6_tcp_opts |= cpu_to_le16((iface_param->value[0] << 1) & IPV6_TCPOPT_TIMER_SCALE); break; case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv6_tcp_opts |= cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN); else init_fw_cb->ipv6_tcp_opts &= cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN); break; case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv6_opts |= cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); else init_fw_cb->ipv6_opts &= cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); break; case ISCSI_NET_PARAM_REDIRECT_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv6_opts |= cpu_to_le16(IPV6_OPT_REDIRECT_EN); else init_fw_cb->ipv6_opts &= cpu_to_le16(~IPV6_OPT_REDIRECT_EN); break; case ISCSI_NET_PARAM_IPV6_MLD_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(IPV6_ADDOPT_MLD_EN); else init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(~IPV6_ADDOPT_MLD_EN); break; case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_flow_lbl = cpu_to_le16(*(uint16_t *)iface_param->value); break; case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_traffic_class = iface_param->value[0]; break; case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_hop_limit = iface_param->value[0]; break; case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_nd_reach_time = cpu_to_le32(*(uint32_t *)iface_param->value); break; case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_nd_rexmit_timer = cpu_to_le32(*(uint32_t *)iface_param->value); break; case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_nd_stale_timeout = cpu_to_le32(*(uint32_t *)iface_param->value); break; case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0]; break; case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv6_gw_advrt_mtu = cpu_to_le32(*(uint32_t *)iface_param->value); break; default: ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", iface_param->param); break; } } static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, struct iscsi_iface_param_info *iface_param, struct addr_ctrl_blk *init_fw_cb) { switch (iface_param->param) { case ISCSI_NET_PARAM_IPV4_ADDR: memcpy(init_fw_cb->ipv4_addr, iface_param->value, sizeof(init_fw_cb->ipv4_addr)); break; case ISCSI_NET_PARAM_IPV4_SUBNET: memcpy(init_fw_cb->ipv4_subnet, iface_param->value, sizeof(init_fw_cb->ipv4_subnet)); break; case ISCSI_NET_PARAM_IPV4_GW: memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, sizeof(init_fw_cb->ipv4_gw_addr)); break; case ISCSI_NET_PARAM_IPV4_BOOTPROTO: if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) init_fw_cb->ipv4_tcp_opts |= cpu_to_le16(TCPOPT_DHCP_ENABLE); else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_DHCP_ENABLE); else ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); break; case ISCSI_NET_PARAM_IFACE_ENABLE: if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); qla4xxx_create_ipv4_iface(ha); } else { init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 0xFFFF); qla4xxx_destroy_ipv4_iface(ha); } break; case ISCSI_NET_PARAM_VLAN_TAG: if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) break; init_fw_cb->ipv4_vlan_tag = cpu_to_be16(*(uint16_t *)iface_param->value); break; case ISCSI_NET_PARAM_VLAN_ENABLED: if (iface_param->value[0] == ISCSI_VLAN_ENABLE) init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); else init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); break; case ISCSI_NET_PARAM_MTU: init_fw_cb->eth_mtu_size = cpu_to_le16(*(uint16_t *)iface_param->value); break; case ISCSI_NET_PARAM_PORT: init_fw_cb->ipv4_port = cpu_to_le16(*(uint16_t *)iface_param->value); break; case ISCSI_NET_PARAM_DELAYED_ACK_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) init_fw_cb->ipv4_tcp_opts |= cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE); else init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE & 0xFFFF); break; case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) init_fw_cb->ipv4_tcp_opts |= cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE); else init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE); break; case ISCSI_NET_PARAM_TCP_WSF_DISABLE: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) init_fw_cb->ipv4_tcp_opts |= cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE); else init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE); break; case ISCSI_NET_PARAM_TCP_WSF: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv4_tcp_wsf = iface_param->value[0]; break; case ISCSI_NET_PARAM_TCP_TIMER_SCALE: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE); init_fw_cb->ipv4_tcp_opts |= cpu_to_le16((iface_param->value[0] << 1) & TCPOPT_TIMER_SCALE); break; case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_tcp_opts |= cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE); else init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE); break; case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_tcp_opts |= cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN); else init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN); break; case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_tcp_opts |= cpu_to_le16(TCPOPT_SLP_DA_INFO_EN); else init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN); break; case ISCSI_NET_PARAM_IPV4_TOS_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_IPV4_TOS_EN); else init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_IPV4_TOS_EN); break; case ISCSI_NET_PARAM_IPV4_TOS: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv4_tos = iface_param->value[0]; break; case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_GRAT_ARP_EN); else init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_GRAT_ARP_EN); break; case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_ALT_CID_EN); else init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_ALT_CID_EN); break; case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: if (iface_param->iface_num & 0x1) break; memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value, (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1)); init_fw_cb->ipv4_dhcp_alt_cid_len = strlen(init_fw_cb->ipv4_dhcp_alt_cid); break; case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_REQ_VID_EN); else init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_REQ_VID_EN); break; case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_USE_VID_EN); else init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_USE_VID_EN); break; case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: if (iface_param->iface_num & 0x1) break; memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value, (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1)); init_fw_cb->ipv4_dhcp_vid_len = strlen(init_fw_cb->ipv4_dhcp_vid); break; case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_LEARN_IQN_EN); else init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_LEARN_IQN_EN); break; case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE); else init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE); break; case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_IN_FORWARD_EN); else init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_IN_FORWARD_EN); break; case ISCSI_NET_PARAM_REDIRECT_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->ipv4_ip_opts |= cpu_to_le16(IPOPT_ARP_REDIRECT_EN); else init_fw_cb->ipv4_ip_opts &= cpu_to_le16(~IPOPT_ARP_REDIRECT_EN); break; case ISCSI_NET_PARAM_IPV4_TTL: if (iface_param->iface_num & 0x1) break; init_fw_cb->ipv4_ttl = iface_param->value[0]; break; default: ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", iface_param->param); break; } } static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, struct iscsi_iface_param_info *iface_param, struct addr_ctrl_blk *init_fw_cb) { switch (iface_param->param) { case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: if (iface_param->iface_num & 0x1) break; init_fw_cb->def_timeout = cpu_to_le16(*(uint16_t *)iface_param->value); break; case ISCSI_IFACE_PARAM_HDRDGST_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN); break; case ISCSI_IFACE_PARAM_DATADGST_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN); break; case ISCSI_IFACE_PARAM_IMM_DATA_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN); break; case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN); break; case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN); break; case ISCSI_IFACE_PARAM_PDU_INORDER_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN); break; case ISCSI_IFACE_PARAM_ERL: if (iface_param->iface_num & 0x1) break; init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL); init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] & ISCSIOPTS_ERL); break; case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: if (iface_param->iface_num & 0x1) break; init_fw_cb->iscsi_max_pdu_size = cpu_to_le32(*(uint32_t *)iface_param->value) / BYTE_UNITS; break; case ISCSI_IFACE_PARAM_FIRST_BURST: if (iface_param->iface_num & 0x1) break; init_fw_cb->iscsi_fburst_len = cpu_to_le32(*(uint32_t *)iface_param->value) / BYTE_UNITS; break; case ISCSI_IFACE_PARAM_MAX_R2T: if (iface_param->iface_num & 0x1) break; init_fw_cb->iscsi_max_outstnd_r2t = cpu_to_le16(*(uint16_t *)iface_param->value); break; case ISCSI_IFACE_PARAM_MAX_BURST: if (iface_param->iface_num & 0x1) break; init_fw_cb->iscsi_max_burst_len = cpu_to_le32(*(uint32_t *)iface_param->value) / BYTE_UNITS; break; case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN); break; case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN); break; case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN); break; case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN); break; case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: if (iface_param->iface_num & 0x1) break; if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) init_fw_cb->iscsi_opts |= cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN); else init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN); break; default: ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n", iface_param->param); break; } } static void qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) { struct addr_ctrl_blk_def *acb; acb = (struct addr_ctrl_blk_def *)init_fw_cb; memset(acb->reserved1, 0, sizeof(acb->reserved1)); memset(acb->reserved2, 0, sizeof(acb->reserved2)); memset(acb->reserved3, 0, sizeof(acb->reserved3)); memset(acb->reserved4, 0, sizeof(acb->reserved4)); memset(acb->reserved5, 0, sizeof(acb->reserved5)); memset(acb->reserved6, 0, sizeof(acb->reserved6)); memset(acb->reserved7, 0, sizeof(acb->reserved7)); memset(acb->reserved8, 0, sizeof(acb->reserved8)); memset(acb->reserved9, 0, sizeof(acb->reserved9)); memset(acb->reserved10, 0, sizeof(acb->reserved10)); memset(acb->reserved11, 0, sizeof(acb->reserved11)); memset(acb->reserved12, 0, sizeof(acb->reserved12)); memset(acb->reserved13, 0, sizeof(acb->reserved13)); memset(acb->reserved14, 0, sizeof(acb->reserved14)); memset(acb->reserved15, 0, sizeof(acb->reserved15)); } static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) { struct scsi_qla_host *ha = to_qla_host(shost); int rval = 0; struct iscsi_iface_param_info *iface_param = NULL; struct addr_ctrl_blk *init_fw_cb = NULL; dma_addr_t init_fw_cb_dma; uint32_t mbox_cmd[MBOX_REG_COUNT]; uint32_t mbox_sts[MBOX_REG_COUNT]; uint32_t rem = len; struct nlattr *attr; init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), &init_fw_cb_dma, GFP_KERNEL); if (!init_fw_cb) { ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", __func__); return -ENOMEM; } memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); rval = -EIO; goto exit_init_fw_cb; } nla_for_each_attr(attr, data, len, rem) { iface_param = nla_data(attr); if (iface_param->param_type == ISCSI_NET_PARAM) { switch (iface_param->iface_type) { case ISCSI_IFACE_TYPE_IPV4: switch (iface_param->iface_num) { case 0: qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); break; default: /* Cannot have more than one IPv4 interface */ ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface number = %d\n", iface_param->iface_num); break; } break; case ISCSI_IFACE_TYPE_IPV6: switch (iface_param->iface_num) { case 0: case 1: qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); break; default: /* Cannot have more than two IPv6 interface */ ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface number = %d\n", iface_param->iface_num); break; } break; default: ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); break; } } else if (iface_param->param_type == ISCSI_IFACE_PARAM) { qla4xxx_set_iscsi_param(ha, iface_param, init_fw_cb); } else { continue; } } init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, sizeof(struct addr_ctrl_blk), FLASH_OPT_RMW_COMMIT); if (rval != QLA_SUCCESS) { ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", __func__); rval = -EIO; goto exit_init_fw_cb; } rval = qla4xxx_disable_acb(ha); if (rval != QLA_SUCCESS) { ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", __func__); rval = -EIO; goto exit_init_fw_cb; } wait_for_completion_timeout(&ha->disable_acb_comp, DISABLE_ACB_TOV * HZ); qla4xxx_initcb_to_acb(init_fw_cb); rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); if (rval != QLA_SUCCESS) { ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", __func__); rval = -EIO; goto exit_init_fw_cb; } memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, init_fw_cb_dma); exit_init_fw_cb: dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), init_fw_cb, init_fw_cb_dma); return rval; } static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, enum iscsi_param param, char *buf) { struct iscsi_session *sess = cls_sess->dd_data; struct ddb_entry *ddb_entry = sess->dd_data; struct scsi_qla_host *ha = ddb_entry->ha; struct iscsi_cls_conn *cls_conn = ddb_entry->conn; struct ql4_chap_table chap_tbl; int rval, len; uint16_t idx; memset(&chap_tbl, 0, sizeof(chap_tbl)); switch (param) { case ISCSI_PARAM_CHAP_IN_IDX: rval = qla4xxx_get_chap_index(ha, sess->username_in, sess->password_in, BIDI_CHAP, &idx); if (rval) len = sprintf(buf, "\n"); else len = sprintf(buf, "%hu\n", idx); break; case ISCSI_PARAM_CHAP_OUT_IDX: if (ddb_entry->ddb_type == FLASH_DDB) { if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { idx = ddb_entry->chap_tbl_idx; rval = QLA_SUCCESS; } else { rval = QLA_ERROR; } } else { rval = qla4xxx_get_chap_index(ha, sess->username, sess->password, LOCAL_CHAP, &idx); } if (rval) len = sprintf(buf, "\n"); else len = sprintf(buf, "%hu\n", idx); break; case ISCSI_PARAM_USERNAME: case ISCSI_PARAM_PASSWORD: /* First, populate session username and password for FLASH DDB, * if not already done. This happens when session login fails * for a FLASH DDB. */ if (ddb_entry->ddb_type == FLASH_DDB && ddb_entry->chap_tbl_idx != INVALID_ENTRY && !sess->username && !sess->password) { idx = ddb_entry->chap_tbl_idx; rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, chap_tbl.secret, idx); if (!rval) { iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, (char *)chap_tbl.name, strlen((char *)chap_tbl.name)); iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, (char *)chap_tbl.secret, chap_tbl.secret_len); } } /* allow fall-through */ default: return iscsi_session_get_param(cls_sess, param, buf); } return len; } static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, char *buf) { struct iscsi_conn *conn; struct qla_conn *qla_conn; struct sockaddr *dst_addr; conn = cls_conn->dd_data; qla_conn = conn->dd_data; dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; switch (param) { case ISCSI_PARAM_CONN_PORT: case ISCSI_PARAM_CONN_ADDRESS: return iscsi_conn_get_addr_param((struct sockaddr_storage *) dst_addr, param, buf); default: return iscsi_conn_get_param(cls_conn, param, buf); } } int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) { uint32_t mbx_sts = 0; uint16_t tmp_ddb_index; int ret; get_ddb_index: tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); if (tmp_ddb_index >= MAX_DDB_ENTRIES) { DEBUG2(ql4_printk(KERN_INFO, ha, "Free DDB index not available\n")); ret = QLA_ERROR; goto exit_get_ddb_index; } if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) goto get_ddb_index; DEBUG2(ql4_printk(KERN_INFO, ha, "Found a free DDB index at %d\n", tmp_ddb_index)); ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); if (ret == QLA_ERROR) { if (mbx_sts == MBOX_STS_COMMAND_ERROR) { ql4_printk(KERN_INFO, ha, "DDB index = %d not available trying next\n", tmp_ddb_index); goto get_ddb_index; } DEBUG2(ql4_printk(KERN_INFO, ha, "Free FW DDB not available\n")); } *ddb_index = tmp_ddb_index; exit_get_ddb_index: return ret; } static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry, char *existing_ipaddr, char *user_ipaddr) { uint8_t dst_ipaddr[IPv6_ADDR_LEN]; char formatted_ipaddr[DDB_IPADDR_LEN]; int status = QLA_SUCCESS, ret = 0; if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, '\0', NULL); if (ret == 0) { status = QLA_ERROR; goto out_match; } ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); } else { ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, '\0', NULL); if (ret == 0) { status = QLA_ERROR; goto out_match; } ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); } if (strcmp(existing_ipaddr, formatted_ipaddr)) status = QLA_ERROR; out_match: return status; } static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, struct iscsi_cls_conn *cls_conn) { int idx = 0, max_ddbs, rval; struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); struct iscsi_session *sess, *existing_sess; struct iscsi_conn *conn, *existing_conn; struct ddb_entry *ddb_entry; sess = cls_sess->dd_data; conn = cls_conn->dd_data; if (sess->targetname == NULL || conn->persistent_address == NULL || conn->persistent_port == 0) return QLA_ERROR; max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : MAX_DEV_DB_ENTRIES; for (idx = 0; idx < max_ddbs; idx++) { ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); if (ddb_entry == NULL) continue; if (ddb_entry->ddb_type != FLASH_DDB) continue; existing_sess = ddb_entry->sess->dd_data; existing_conn = ddb_entry->conn->dd_data; if (existing_sess->targetname == NULL || existing_conn->persistent_address == NULL || existing_conn->persistent_port == 0) continue; DEBUG2(ql4_printk(KERN_INFO, ha, "IQN = %s User IQN = %s\n", existing_sess->targetname, sess->targetname)); DEBUG2(ql4_printk(KERN_INFO, ha, "IP = %s User IP = %s\n", existing_conn->persistent_address, conn->persistent_address)); DEBUG2(ql4_printk(KERN_INFO, ha, "Port = %d User Port = %d\n", existing_conn->persistent_port, conn->persistent_port)); if (strcmp(existing_sess->targetname, sess->targetname)) continue; rval = qla4xxx_match_ipaddress(ha, ddb_entry, existing_conn->persistent_address, conn->persistent_address); if (rval == QLA_ERROR) continue; if (existing_conn->persistent_port != conn->persistent_port) continue; break; } if (idx == max_ddbs) return QLA_ERROR; DEBUG2(ql4_printk(KERN_INFO, ha, "Match found in fwdb sessions\n")); return QLA_SUCCESS; } static struct iscsi_cls_session * qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, uint16_t qdepth, uint32_t initial_cmdsn) { struct iscsi_cls_session *cls_sess; struct scsi_qla_host *ha; struct qla_endpoint *qla_ep; struct ddb_entry *ddb_entry; uint16_t ddb_index; struct iscsi_session *sess; struct sockaddr *dst_addr; int ret; if (!ep) { printk(KERN_ERR "qla4xxx: missing ep.\n"); return NULL; } qla_ep = ep->dd_data; dst_addr = (struct sockaddr *)&qla_ep->dst_addr; ha = to_qla_host(qla_ep->host); DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, ha->host_no)); ret = qla4xxx_get_ddb_index(ha, &ddb_index); if (ret == QLA_ERROR) return NULL; cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, cmds_max, sizeof(struct ddb_entry), sizeof(struct ql4_task_data), initial_cmdsn, ddb_index); if (!cls_sess) return NULL; sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ddb_entry->fw_ddb_index = ddb_index; ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; ddb_entry->ha = ha; ddb_entry->sess = cls_sess; ddb_entry->unblock_sess = qla4xxx_unblock_ddb; ddb_entry->ddb_change = qla4xxx_ddb_change; clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags); cls_sess->recovery_tmo = ql4xsess_recovery_tmo; ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; ha->tot_ddbs++; return cls_sess; } static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) { struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; unsigned long flags, wtime; struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; uint32_t ddb_state; int ret; sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, ha->host_no)); fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__); goto destroy_session; } wtime = jiffies + (HZ * LOGOUT_TOV); do { ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, fw_ddb_entry_dma, NULL, NULL, &ddb_state, NULL, NULL, NULL); if (ret == QLA_ERROR) goto destroy_session; if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || (ddb_state == DDB_DS_SESSION_FAILED)) goto destroy_session; schedule_timeout_uninterruptible(HZ); } while ((time_after(wtime, jiffies))); destroy_session: qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags)) clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); spin_lock_irqsave(&ha->hardware_lock, flags); qla4xxx_free_ddb(ha, ddb_entry); spin_unlock_irqrestore(&ha->hardware_lock, flags); iscsi_session_teardown(cls_sess); if (fw_ddb_entry) dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); } static struct iscsi_cls_conn * qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) { struct iscsi_cls_conn *cls_conn; struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_idx); if (!cls_conn) { pr_info("%s: Can not create connection for conn_idx = %u\n", __func__, conn_idx); return NULL; } sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ddb_entry->conn = cls_conn; ha = ddb_entry->ha; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__, conn_idx)); return cls_conn; } static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, struct iscsi_cls_conn *cls_conn, uint64_t transport_fd, int is_leading) { struct iscsi_conn *conn; struct qla_conn *qla_conn; struct iscsi_endpoint *ep; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; struct iscsi_session *sess; sess = cls_session->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, cls_session->sid, cls_conn->cid)); if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) return -EINVAL; ep = iscsi_lookup_endpoint(transport_fd); conn = cls_conn->dd_data; qla_conn = conn->dd_data; qla_conn->qla_ep = ep->dd_data; return 0; } static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) { struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; uint32_t mbx_sts = 0; int ret = 0; int status = QLA_SUCCESS; sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, cls_sess->sid, cls_conn->cid)); /* Check if we have matching FW DDB, if yes then do not * login to this target. This could cause target to logout previous * connection */ ret = qla4xxx_match_fwdb_session(ha, cls_conn); if (ret == QLA_SUCCESS) { ql4_printk(KERN_INFO, ha, "Session already exist in FW.\n"); ret = -EEXIST; goto exit_conn_start; } fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__); ret = -ENOMEM; goto exit_conn_start; } ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); if (ret) { /* If iscsid is stopped and started then no need to do * set param again since ddb state will be already * active and FW does not allow set ddb to an * active session. */ if (mbx_sts) if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { ddb_entry->unblock_sess(ddb_entry->sess); goto exit_set_param; } ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", __func__, ddb_entry->fw_ddb_index); goto exit_conn_start; } status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); if (status == QLA_ERROR) { ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, sess->targetname); ret = -EINVAL; goto exit_conn_start; } if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, ddb_entry->fw_ddb_device_state)); exit_set_param: ret = 0; exit_conn_start: if (fw_ddb_entry) dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); return ret; } static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) { struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); struct iscsi_session *sess; struct scsi_qla_host *ha; struct ddb_entry *ddb_entry; int options; sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__, cls_conn->cid)); options = LOGOUT_OPTION_CLOSE_SESSION; if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); } static void qla4xxx_task_work(struct work_struct *wdata) { struct ql4_task_data *task_data; struct scsi_qla_host *ha; struct passthru_status *sts; struct iscsi_task *task; struct iscsi_hdr *hdr; uint8_t *data; uint32_t data_len; struct iscsi_conn *conn; int hdr_len; itt_t itt; task_data = container_of(wdata, struct ql4_task_data, task_work); ha = task_data->ha; task = task_data->task; sts = &task_data->sts; hdr_len = sizeof(struct iscsi_hdr); DEBUG3(printk(KERN_INFO "Status returned\n")); DEBUG3(qla4xxx_dump_buffer(sts, 64)); DEBUG3(printk(KERN_INFO "Response buffer")); DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); conn = task->conn; switch (sts->completionStatus) { case PASSTHRU_STATUS_COMPLETE: hdr = (struct iscsi_hdr *)task_data->resp_buffer; /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ itt = sts->handle; hdr->itt = itt; data = task_data->resp_buffer + hdr_len; data_len = task_data->resp_len - hdr_len; iscsi_complete_pdu(conn, hdr, data, data_len); break; default: ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", sts->completionStatus); break; } return; } static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) { struct ql4_task_data *task_data; struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; int hdr_len; sess = task->conn->session; ddb_entry = sess->dd_data; ha = ddb_entry->ha; task_data = task->dd_data; memset(task_data, 0, sizeof(struct ql4_task_data)); if (task->sc) { ql4_printk(KERN_INFO, ha, "%s: SCSI Commands not implemented\n", __func__); return -EINVAL; } hdr_len = sizeof(struct iscsi_hdr); task_data->ha = ha; task_data->task = task; if (task->data_count) { task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, task->data_count, DMA_TO_DEVICE); } DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", __func__, task->conn->max_recv_dlength, hdr_len)); task_data->resp_len = task->conn->max_recv_dlength + hdr_len; task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, task_data->resp_len, &task_data->resp_dma, GFP_ATOMIC); if (!task_data->resp_buffer) goto exit_alloc_pdu; task_data->req_len = task->data_count + hdr_len; task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, task_data->req_len, &task_data->req_dma, GFP_ATOMIC); if (!task_data->req_buffer) goto exit_alloc_pdu; task->hdr = task_data->req_buffer; INIT_WORK(&task_data->task_work, qla4xxx_task_work); return 0; exit_alloc_pdu: if (task_data->resp_buffer) dma_free_coherent(&ha->pdev->dev, task_data->resp_len, task_data->resp_buffer, task_data->resp_dma); if (task_data->req_buffer) dma_free_coherent(&ha->pdev->dev, task_data->req_len, task_data->req_buffer, task_data->req_dma); return -ENOMEM; } static void qla4xxx_task_cleanup(struct iscsi_task *task) { struct ql4_task_data *task_data; struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; int hdr_len; hdr_len = sizeof(struct iscsi_hdr); sess = task->conn->session; ddb_entry = sess->dd_data; ha = ddb_entry->ha; task_data = task->dd_data; if (task->data_count) { dma_unmap_single(&ha->pdev->dev, task_data->data_dma, task->data_count, DMA_TO_DEVICE); } DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", __func__, task->conn->max_recv_dlength, hdr_len)); dma_free_coherent(&ha->pdev->dev, task_data->resp_len, task_data->resp_buffer, task_data->resp_dma); dma_free_coherent(&ha->pdev->dev, task_data->req_len, task_data->req_buffer, task_data->req_dma); return; } static int qla4xxx_task_xmit(struct iscsi_task *task) { struct scsi_cmnd *sc = task->sc; struct iscsi_session *sess = task->conn->session; struct ddb_entry *ddb_entry = sess->dd_data; struct scsi_qla_host *ha = ddb_entry->ha; if (!sc) return qla4xxx_send_passthru0(task); ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", __func__); return -ENOSYS; } static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, struct iscsi_bus_flash_conn *conn, struct dev_db_entry *fw_ddb_entry) { unsigned long options = 0; int rc = 0; options = le16_to_cpu(fw_ddb_entry->options); conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); if (test_bit(OPT_IPV6_DEVICE, &options)) { rc = iscsi_switch_str_param(&sess->portal_type, PORTAL_TYPE_IPV6); if (rc) goto exit_copy; } else { rc = iscsi_switch_str_param(&sess->portal_type, PORTAL_TYPE_IPV4); if (rc) goto exit_copy; } sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, &options); sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); options = le16_to_cpu(fw_ddb_entry->iscsi_options); conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, &options); sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, &options); sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); sess->discovery_auth_optional = test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); if (test_bit(ISCSIOPT_ERL1, &options)) sess->erl |= BIT_1; if (test_bit(ISCSIOPT_ERL0, &options)) sess->erl |= BIT_0; options = le16_to_cpu(fw_ddb_entry->tcp_options); conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); if (test_bit(TCPOPT_TIMER_SCALE3, &options)) conn->tcp_timer_scale |= BIT_3; if (test_bit(TCPOPT_TIMER_SCALE2, &options)) conn->tcp_timer_scale |= BIT_2; if (test_bit(TCPOPT_TIMER_SCALE1, &options)) conn->tcp_timer_scale |= BIT_1; conn->tcp_timer_scale >>= 1; conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); options = le16_to_cpu(fw_ddb_entry->ip_options); conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); conn->max_recv_dlength = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); conn->max_xmit_dlength = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); sess->first_burst = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); sess->max_burst = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); sess->default_taskmgmt_timeout = le16_to_cpu(fw_ddb_entry->def_timeout); conn->port = le16_to_cpu(fw_ddb_entry->port); options = le16_to_cpu(fw_ddb_entry->options); conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); if (!conn->ipaddress) { rc = -ENOMEM; goto exit_copy; } conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); if (!conn->redirect_ipaddr) { rc = -ENOMEM; goto exit_copy; } memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); if (test_bit(OPT_IPV6_DEVICE, &options)) { conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; conn->link_local_ipv6_addr = kmemdup( fw_ddb_entry->link_local_ipv6_addr, IPv6_ADDR_LEN, GFP_KERNEL); if (!conn->link_local_ipv6_addr) { rc = -ENOMEM; goto exit_copy; } } else { conn->ipv4_tos = fw_ddb_entry->ipv4_tos; } if (fw_ddb_entry->iscsi_name[0]) { rc = iscsi_switch_str_param(&sess->targetname, (char *)fw_ddb_entry->iscsi_name); if (rc) goto exit_copy; } if (fw_ddb_entry->iscsi_alias[0]) { rc = iscsi_switch_str_param(&sess->targetalias, (char *)fw_ddb_entry->iscsi_alias); if (rc) goto exit_copy; } COPY_ISID(sess->isid, fw_ddb_entry->isid); exit_copy: return rc; } static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, struct iscsi_bus_flash_conn *conn, struct dev_db_entry *fw_ddb_entry) { uint16_t options; int rc = 0; options = le16_to_cpu(fw_ddb_entry->options); SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) options |= BIT_8; else options &= ~BIT_8; SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); SET_BITVAL(sess->discovery_sess, options, BIT_4); SET_BITVAL(sess->entry_state, options, BIT_3); fw_ddb_entry->options = cpu_to_le16(options); options = le16_to_cpu(fw_ddb_entry->iscsi_options); SET_BITVAL(conn->hdrdgst_en, options, BIT_13); SET_BITVAL(conn->datadgst_en, options, BIT_12); SET_BITVAL(sess->imm_data_en, options, BIT_11); SET_BITVAL(sess->initial_r2t_en, options, BIT_10); SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); SET_BITVAL(sess->chap_auth_en, options, BIT_7); SET_BITVAL(conn->snack_req_en, options, BIT_6); SET_BITVAL(sess->discovery_logout_en, options, BIT_5); SET_BITVAL(sess->bidi_chap_en, options, BIT_4); SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); SET_BITVAL(sess->erl & BIT_1, options, BIT_1); SET_BITVAL(sess->erl & BIT_0, options, BIT_0); fw_ddb_entry->iscsi_options = cpu_to_le16(options); options = le16_to_cpu(fw_ddb_entry->tcp_options); SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); fw_ddb_entry->tcp_options = cpu_to_le16(options); options = le16_to_cpu(fw_ddb_entry->ip_options); SET_BITVAL(conn->fragment_disable, options, BIT_4); fw_ddb_entry->ip_options = cpu_to_le16(options); fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); fw_ddb_entry->iscsi_max_rcv_data_seg_len = cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); fw_ddb_entry->iscsi_max_snd_data_seg_len = cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); fw_ddb_entry->iscsi_first_burst_len = cpu_to_le16(sess->first_burst / BYTE_UNITS); fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / BYTE_UNITS); fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); fw_ddb_entry->port = cpu_to_le16(conn->port); fw_ddb_entry->def_timeout = cpu_to_le16(sess->default_taskmgmt_timeout); if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; else fw_ddb_entry->ipv4_tos = conn->ipv4_tos; if (conn->ipaddress) memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, sizeof(fw_ddb_entry->ip_addr)); if (conn->redirect_ipaddr) memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, sizeof(fw_ddb_entry->tgt_addr)); if (conn->link_local_ipv6_addr) memcpy(fw_ddb_entry->link_local_ipv6_addr, conn->link_local_ipv6_addr, sizeof(fw_ddb_entry->link_local_ipv6_addr)); if (sess->targetname) memcpy(fw_ddb_entry->iscsi_name, sess->targetname, sizeof(fw_ddb_entry->iscsi_name)); if (sess->targetalias) memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, sizeof(fw_ddb_entry->iscsi_alias)); COPY_ISID(fw_ddb_entry->isid, sess->isid); return rc; } static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, struct iscsi_session *sess, struct dev_db_entry *fw_ddb_entry) { unsigned long options = 0; uint16_t ddb_link; uint16_t disc_parent; char ip_addr[DDB_IPADDR_LEN]; options = le16_to_cpu(fw_ddb_entry->options); conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, &options); sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); options = le16_to_cpu(fw_ddb_entry->iscsi_options); conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, &options); sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, &options); sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); sess->discovery_auth_optional = test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); if (test_bit(ISCSIOPT_ERL1, &options)) sess->erl |= BIT_1; if (test_bit(ISCSIOPT_ERL0, &options)) sess->erl |= BIT_0; options = le16_to_cpu(fw_ddb_entry->tcp_options); conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); if (test_bit(TCPOPT_TIMER_SCALE3, &options)) conn->tcp_timer_scale |= BIT_3; if (test_bit(TCPOPT_TIMER_SCALE2, &options)) conn->tcp_timer_scale |= BIT_2; if (test_bit(TCPOPT_TIMER_SCALE1, &options)) conn->tcp_timer_scale |= BIT_1; conn->tcp_timer_scale >>= 1; conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); options = le16_to_cpu(fw_ddb_entry->ip_options); conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); conn->max_recv_dlength = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); conn->max_xmit_dlength = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); sess->first_burst = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); sess->max_burst = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; conn->ipv4_tos = fw_ddb_entry->ipv4_tos; conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); COPY_ISID(sess->isid, fw_ddb_entry->isid); ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); if (ddb_link == DDB_ISNS) disc_parent = ISCSI_DISC_PARENT_ISNS; else if (ddb_link == DDB_NO_LINK) disc_parent = ISCSI_DISC_PARENT_UNKNOWN; else if (ddb_link < MAX_DDB_ENTRIES) disc_parent = ISCSI_DISC_PARENT_SENDTGT; else disc_parent = ISCSI_DISC_PARENT_UNKNOWN; iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, iscsi_get_discovery_parent_name(disc_parent), 0); iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, (char *)fw_ddb_entry->iscsi_alias, 0); options = le16_to_cpu(fw_ddb_entry->options); if (options & DDB_OPT_IPV6_DEVICE) { memset(ip_addr, 0, sizeof(ip_addr)); sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, (char *)ip_addr, 0); } } static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, struct iscsi_cls_session *cls_sess, struct iscsi_cls_conn *cls_conn) { int buflen = 0; struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct ql4_chap_table chap_tbl; struct iscsi_conn *conn; char ip_addr[DDB_IPADDR_LEN]; uint16_t options = 0; sess = cls_sess->dd_data; ddb_entry = sess->dd_data; conn = cls_conn->dd_data; memset(&chap_tbl, 0, sizeof(chap_tbl)); ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); memset(ip_addr, 0, sizeof(ip_addr)); options = le16_to_cpu(fw_ddb_entry->options); if (options & DDB_OPT_IPV6_DEVICE) { iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); memset(ip_addr, 0, sizeof(ip_addr)); sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); } else { iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); } iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, (char *)ip_addr, buflen); iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, (char *)fw_ddb_entry->iscsi_name, buflen); iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, (char *)ha->name_string, buflen); if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, chap_tbl.secret, ddb_entry->chap_tbl_idx)) { iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, (char *)chap_tbl.name, strlen((char *)chap_tbl.name)); iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, (char *)chap_tbl.secret, chap_tbl.secret_len); } } } void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry) { struct iscsi_cls_session *cls_sess; struct iscsi_cls_conn *cls_conn; uint32_t ddb_state; dma_addr_t fw_ddb_entry_dma; struct dev_db_entry *fw_ddb_entry; fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__); goto exit_session_conn_fwddb_param; } if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, fw_ddb_entry_dma, NULL, NULL, &ddb_state, NULL, NULL, NULL) == QLA_ERROR) { DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " "get_ddb_entry for fw_ddb_index %d\n", ha->host_no, __func__, ddb_entry->fw_ddb_index)); goto exit_session_conn_fwddb_param; } cls_sess = ddb_entry->sess; cls_conn = ddb_entry->conn; /* Update params */ qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); exit_session_conn_fwddb_param: if (fw_ddb_entry) dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); } void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry) { struct iscsi_cls_session *cls_sess; struct iscsi_cls_conn *cls_conn; struct iscsi_session *sess; struct iscsi_conn *conn; uint32_t ddb_state; dma_addr_t fw_ddb_entry_dma; struct dev_db_entry *fw_ddb_entry; fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__); goto exit_session_conn_param; } if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, fw_ddb_entry_dma, NULL, NULL, &ddb_state, NULL, NULL, NULL) == QLA_ERROR) { DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " "get_ddb_entry for fw_ddb_index %d\n", ha->host_no, __func__, ddb_entry->fw_ddb_index)); goto exit_session_conn_param; } cls_sess = ddb_entry->sess; sess = cls_sess->dd_data; cls_conn = ddb_entry->conn; conn = cls_conn->dd_data; /* Update timers after login */ ddb_entry->default_relogin_timeout = (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); /* Update params */ ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); memcpy(sess->initiatorname, ha->name_string, min(sizeof(ha->name_string), sizeof(sess->initiatorname))); exit_session_conn_param: if (fw_ddb_entry) dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); } /* * Timer routines */ static void qla4xxx_timer(struct timer_list *t); static void qla4xxx_start_timer(struct scsi_qla_host *ha, unsigned long interval) { DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", __func__, ha->host->host_no)); timer_setup(&ha->timer, qla4xxx_timer, 0); ha->timer.expires = jiffies + interval * HZ; add_timer(&ha->timer); ha->timer_active = 1; } static void qla4xxx_stop_timer(struct scsi_qla_host *ha) { del_timer_sync(&ha->timer); ha->timer_active = 0; } /*** * qla4xxx_mark_device_missing - blocks the session * @cls_session: Pointer to the session to be blocked * @ddb_entry: Pointer to device database entry * * This routine marks a device missing and close connection. **/ void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) { iscsi_block_session(cls_session); } /** * qla4xxx_mark_all_devices_missing - mark all devices as missing. * @ha: Pointer to host adapter structure. * * This routine marks a device missing and resets the relogin retry count. **/ void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) { iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); } static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry, struct scsi_cmnd *cmd) { struct srb *srb; srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); if (!srb) return srb; kref_init(&srb->srb_ref); srb->ha = ha; srb->ddb = ddb_entry; srb->cmd = cmd; srb->flags = 0; CMD_SP(cmd) = (void *)srb; return srb; } static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) { struct scsi_cmnd *cmd = srb->cmd; if (srb->flags & SRB_DMA_VALID) { scsi_dma_unmap(cmd); srb->flags &= ~SRB_DMA_VALID; } CMD_SP(cmd) = NULL; } void qla4xxx_srb_compl(struct kref *ref) { struct srb *srb = container_of(ref, struct srb, srb_ref); struct scsi_cmnd *cmd = srb->cmd; struct scsi_qla_host *ha = srb->ha; qla4xxx_srb_free_dma(ha, srb); mempool_free(srb, ha->srb_mempool); cmd->scsi_done(cmd); } /** * qla4xxx_queuecommand - scsi layer issues scsi command to driver. * @host: scsi host * @cmd: Pointer to Linux's SCSI command structure * * Remarks: * This routine is invoked by Linux to send a SCSI command to the driver. * The mid-level driver tries to ensure that queuecommand never gets * invoked concurrently with itself or the interrupt handler (although * the interrupt handler may call this routine as part of request- * completion handling). Unfortunely, it sometimes calls the scheduler * in interrupt context which is a big NO! NO!. **/ static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) { struct scsi_qla_host *ha = to_qla_host(host); struct ddb_entry *ddb_entry = cmd->device->hostdata; struct iscsi_cls_session *sess = ddb_entry->sess; struct srb *srb; int rval; if (test_bit(AF_EEH_BUSY, &ha->flags)) { if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) cmd->result = DID_NO_CONNECT << 16; else cmd->result = DID_REQUEUE << 16; goto qc_fail_command; } if (!sess) { cmd->result = DID_IMM_RETRY << 16; goto qc_fail_command; } rval = iscsi_session_chkready(sess); if (rval) { cmd->result = rval; goto qc_fail_command; } if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || test_bit(DPC_RESET_HA, &ha->dpc_flags) || test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || !test_bit(AF_ONLINE, &ha->flags) || !test_bit(AF_LINK_UP, &ha->flags) || test_bit(AF_LOOPBACK, &ha->flags) || test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) goto qc_host_busy; srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); if (!srb) goto qc_host_busy; rval = qla4xxx_send_command_to_isp(ha, srb); if (rval != QLA_SUCCESS) goto qc_host_busy_free_sp; return 0; qc_host_busy_free_sp: qla4xxx_srb_free_dma(ha, srb); mempool_free(srb, ha->srb_mempool); qc_host_busy: return SCSI_MLQUEUE_HOST_BUSY; qc_fail_command: cmd->scsi_done(cmd); return 0; } /** * qla4xxx_mem_free - frees memory allocated to adapter * @ha: Pointer to host adapter structure. * * Frees memory previously allocated by qla4xxx_mem_alloc **/ static void qla4xxx_mem_free(struct scsi_qla_host *ha) { if (ha->queues) dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, ha->queues_dma); if (ha->fw_dump) vfree(ha->fw_dump); ha->queues_len = 0; ha->queues = NULL; ha->queues_dma = 0; ha->request_ring = NULL; ha->request_dma = 0; ha->response_ring = NULL; ha->response_dma = 0; ha->shadow_regs = NULL; ha->shadow_regs_dma = 0; ha->fw_dump = NULL; ha->fw_dump_size = 0; /* Free srb pool. */ mempool_destroy(ha->srb_mempool); ha->srb_mempool = NULL; dma_pool_destroy(ha->chap_dma_pool); if (ha->chap_list) vfree(ha->chap_list); ha->chap_list = NULL; dma_pool_destroy(ha->fw_ddb_dma_pool); /* release io space registers */ if (is_qla8022(ha)) { if (ha->nx_pcibase) iounmap( (struct device_reg_82xx __iomem *)ha->nx_pcibase); } else if (is_qla8032(ha) || is_qla8042(ha)) { if (ha->nx_pcibase) iounmap( (struct device_reg_83xx __iomem *)ha->nx_pcibase); } else if (ha->reg) { iounmap(ha->reg); } if (ha->reset_tmplt.buff) vfree(ha->reset_tmplt.buff); pci_release_regions(ha->pdev); } /** * qla4xxx_mem_alloc - allocates memory for use by adapter. * @ha: Pointer to host adapter structure * * Allocates DMA memory for request and response queues. Also allocates memory * for srbs. **/ static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) { unsigned long align; /* Allocate contiguous block of DMA memory for queues. */ ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + sizeof(struct shadow_regs) + MEM_ALIGN_VALUE + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, &ha->queues_dma, GFP_KERNEL); if (ha->queues == NULL) { ql4_printk(KERN_WARNING, ha, "Memory Allocation failed - queues.\n"); goto mem_alloc_error_exit; } /* * As per RISC alignment requirements -- the bus-address must be a * multiple of the request-ring size (in bytes). */ align = 0; if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)); /* Update request and response queue pointers. */ ha->request_dma = ha->queues_dma + align; ha->request_ring = (struct queue_entry *) (ha->queues + align); ha->response_dma = ha->queues_dma + align + (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); ha->response_ring = (struct queue_entry *) (ha->queues + align + (REQUEST_QUEUE_DEPTH * QUEUE_SIZE)); ha->shadow_regs_dma = ha->queues_dma + align + (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE)); /* Allocate memory for srb pool. */ ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, mempool_free_slab, srb_cachep); if (ha->srb_mempool == NULL) { ql4_printk(KERN_WARNING, ha, "Memory Allocation failed - SRB Pool.\n"); goto mem_alloc_error_exit; } ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, CHAP_DMA_BLOCK_SIZE, 8, 0); if (ha->chap_dma_pool == NULL) { ql4_printk(KERN_WARNING, ha, "%s: chap_dma_pool allocation failed..\n", __func__); goto mem_alloc_error_exit; } ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, DDB_DMA_BLOCK_SIZE, 8, 0); if (ha->fw_ddb_dma_pool == NULL) { ql4_printk(KERN_WARNING, ha, "%s: fw_ddb_dma_pool allocation failed..\n", __func__); goto mem_alloc_error_exit; } return QLA_SUCCESS; mem_alloc_error_exit: qla4xxx_mem_free(ha); return QLA_ERROR; } /** * qla4_8xxx_check_temp - Check the ISP82XX temperature. * @ha: adapter block pointer. * * Note: The caller should not hold the idc lock. **/ static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) { uint32_t temp, temp_state, temp_val; int status = QLA_SUCCESS; temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); temp_state = qla82xx_get_temp_state(temp); temp_val = qla82xx_get_temp_val(temp); if (temp_state == QLA82XX_TEMP_PANIC) { ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" " exceeds maximum allowed. Hardware has been shut" " down.\n", temp_val); status = QLA_ERROR; } else if (temp_state == QLA82XX_TEMP_WARN) { if (ha->temperature == QLA82XX_TEMP_NORMAL) ql4_printk(KERN_WARNING, ha, "Device temperature %d" " degrees C exceeds operating range." " Immediate action needed.\n", temp_val); } else { if (ha->temperature == QLA82XX_TEMP_WARN) ql4_printk(KERN_INFO, ha, "Device temperature is" " now %d degrees C in normal range.\n", temp_val); } ha->temperature = temp_state; return status; } /** * qla4_8xxx_check_fw_alive - Check firmware health * @ha: Pointer to host adapter structure. * * Context: Interrupt **/ static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) { uint32_t fw_heartbeat_counter; int status = QLA_SUCCESS; fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER); /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ if (fw_heartbeat_counter == 0xffffffff) { DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", ha->host_no, __func__)); return status; } if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { ha->seconds_since_last_heartbeat++; /* FW not alive after 2 seconds */ if (ha->seconds_since_last_heartbeat == 2) { ha->seconds_since_last_heartbeat = 0; qla4_8xxx_dump_peg_reg(ha); status = QLA_ERROR; } } else ha->seconds_since_last_heartbeat = 0; ha->fw_heartbeat_counter = fw_heartbeat_counter; return status; } static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) { uint32_t halt_status; int halt_status_unrecoverable = 0; halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); if (is_qla8022(ha)) { ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", __func__); qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, CRB_NIU_XG_PAUSE_CTL_P0 | CRB_NIU_XG_PAUSE_CTL_P1); if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", __func__); if (halt_status & HALT_STATUS_UNRECOVERABLE) halt_status_unrecoverable = 1; } else if (is_qla8032(ha) || is_qla8042(ha)) { if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", __func__); else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) halt_status_unrecoverable = 1; } /* * Since we cannot change dev_state in interrupt context, * set appropriate DPC flag then wakeup DPC */ if (halt_status_unrecoverable) { set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); } else { ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", __func__); set_bit(DPC_RESET_HA, &ha->dpc_flags); } qla4xxx_mailbox_premature_completion(ha); qla4xxx_wake_dpc(ha); } /** * qla4_8xxx_watchdog - Poll dev state * @ha: Pointer to host adapter structure. * * Context: Interrupt **/ void qla4_8xxx_watchdog(struct scsi_qla_host *ha) { uint32_t dev_state; uint32_t idc_ctrl; if (is_qla8032(ha) && (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", __func__, ha->func_num); /* don't poll if reset is going on */ if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || test_bit(DPC_RESET_HA, &ha->dpc_flags) || test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); if (qla4_8xxx_check_temp(ha)) { if (is_qla8022(ha)) { ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, CRB_NIU_XG_PAUSE_CTL_P0 | CRB_NIU_XG_PAUSE_CTL_P1); } set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); qla4xxx_wake_dpc(ha); } else if (dev_state == QLA8XXX_DEV_NEED_RESET && !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", __func__); if (is_qla8032(ha) || is_qla8042(ha)) { idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", __func__); qla4xxx_mailbox_premature_completion( ha); } } if ((is_qla8032(ha) || is_qla8042(ha)) || (is_qla8022(ha) && !ql4xdontresethba)) { set_bit(DPC_RESET_HA, &ha->dpc_flags); qla4xxx_wake_dpc(ha); } } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", __func__); set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); qla4xxx_wake_dpc(ha); } else { /* Check firmware health */ if (qla4_8xxx_check_fw_alive(ha)) qla4_8xxx_process_fw_error(ha); } } } static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) { struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; if (!(ddb_entry->ddb_type == FLASH_DDB)) return; if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && !iscsi_is_session_online(cls_sess)) { if (atomic_read(&ddb_entry->retry_relogin_timer) != INVALID_ENTRY) { if (atomic_read(&ddb_entry->retry_relogin_timer) == 0) { atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); set_bit(DF_RELOGIN, &ddb_entry->flags); DEBUG2(ql4_printk(KERN_INFO, ha, "%s: index [%d] login device\n", __func__, ddb_entry->fw_ddb_index)); } else atomic_dec(&ddb_entry->retry_relogin_timer); } } /* Wait for relogin to timeout */ if (atomic_read(&ddb_entry->relogin_timer) && (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { /* * If the relogin times out and the device is * still NOT ONLINE then try and relogin again. */ if (!iscsi_is_session_online(cls_sess)) { /* Reset retry relogin timer */ atomic_inc(&ddb_entry->relogin_retry_count); DEBUG2(ql4_printk(KERN_INFO, ha, "%s: index[%d] relogin timed out-retrying" " relogin (%d), retry (%d)\n", __func__, ddb_entry->fw_ddb_index, atomic_read(&ddb_entry->relogin_retry_count), ddb_entry->default_time2wait + 4)); set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); atomic_set(&ddb_entry->retry_relogin_timer, ddb_entry->default_time2wait + 4); } } } /** * qla4xxx_timer - checks every second for work to do. * @ha: Pointer to host adapter structure. **/ static void qla4xxx_timer(struct timer_list *t) { struct scsi_qla_host *ha = from_timer(ha, t, timer); int start_dpc = 0; uint16_t w; iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); /* If we are in the middle of AER/EEH processing * skip any processing and reschedule the timer */ if (test_bit(AF_EEH_BUSY, &ha->flags)) { mod_timer(&ha->timer, jiffies + HZ); return; } /* Hardware read to trigger an EEH error during mailbox waits. */ if (!pci_channel_offline(ha->pdev)) pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); if (is_qla80XX(ha)) qla4_8xxx_watchdog(ha); if (is_qla40XX(ha)) { /* Check for heartbeat interval. */ if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && ha->heartbeat_interval != 0) { ha->seconds_since_last_heartbeat++; if (ha->seconds_since_last_heartbeat > ha->heartbeat_interval + 2) set_bit(DPC_RESET_HA, &ha->dpc_flags); } } /* Process any deferred work. */ if (!list_empty(&ha->work_list)) start_dpc++; /* Wakeup the dpc routine for this adapter, if needed. */ if (start_dpc || test_bit(DPC_RESET_HA, &ha->dpc_flags) || test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) || test_bit(DPC_AEN, &ha->dpc_flags)) { DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" " - dpc flags = 0x%lx\n", ha->host_no, __func__, ha->dpc_flags)); qla4xxx_wake_dpc(ha); } /* Reschedule timer thread to call us back in one second */ mod_timer(&ha->timer, jiffies + HZ); DEBUG2(ha->seconds_since_last_intr++); } /** * qla4xxx_cmd_wait - waits for all outstanding commands to complete * @ha: Pointer to host adapter structure. * * This routine stalls the driver until all outstanding commands are returned. * Caller must release the Hardware Lock prior to calling this routine. **/ static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) { uint32_t index = 0; unsigned long flags; struct scsi_cmnd *cmd; unsigned long wtime; uint32_t wtmo; if (is_qla40XX(ha)) wtmo = WAIT_CMD_TOV; else wtmo = ha->nx_reset_timeout / 2; wtime = jiffies + (wtmo * HZ); DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %u seconds for cmds to complete\n", wtmo)); while (!time_after_eq(jiffies, wtime)) { spin_lock_irqsave(&ha->hardware_lock, flags); /* Find a command that hasn't completed. */ for (index = 0; index < ha->host->can_queue; index++) { cmd = scsi_host_find_tag(ha->host, index); /* * We cannot just check if the index is valid, * becase if we are run from the scsi eh, then * the scsi/block layer is going to prevent * the tag from being released. */ if (cmd != NULL && CMD_SP(cmd)) break; } spin_unlock_irqrestore(&ha->hardware_lock, flags); /* If No Commands are pending, wait is complete */ if (index == ha->host->can_queue) return QLA_SUCCESS; msleep(1000); } /* If we timed out on waiting for commands to come back * return ERROR. */ return QLA_ERROR; } int qla4xxx_hw_reset(struct scsi_qla_host *ha) { uint32_t ctrl_status; unsigned long flags = 0; DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) return QLA_ERROR; spin_lock_irqsave(&ha->hardware_lock, flags); /* * If the SCSI Reset Interrupt bit is set, clear it. * Otherwise, the Soft Reset won't work. */ ctrl_status = readw(&ha->reg->ctrl_status); if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); /* Issue Soft Reset */ writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_SUCCESS; } /** * qla4xxx_soft_reset - performs soft reset. * @ha: Pointer to host adapter structure. **/ int qla4xxx_soft_reset(struct scsi_qla_host *ha) { uint32_t max_wait_time; unsigned long flags = 0; int status; uint32_t ctrl_status; status = qla4xxx_hw_reset(ha); if (status != QLA_SUCCESS) return status; status = QLA_ERROR; /* Wait until the Network Reset Intr bit is cleared */ max_wait_time = RESET_INTR_TOV; do { spin_lock_irqsave(&ha->hardware_lock, flags); ctrl_status = readw(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); if ((ctrl_status & CSR_NET_RESET_INTR) == 0) break; msleep(1000); } while ((--max_wait_time)); if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { DEBUG2(printk(KERN_WARNING "scsi%ld: Network Reset Intr not cleared by " "Network function, clearing it now!\n", ha->host_no)); spin_lock_irqsave(&ha->hardware_lock, flags); writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); } /* Wait until the firmware tells us the Soft Reset is done */ max_wait_time = SOFT_RESET_TOV; do { spin_lock_irqsave(&ha->hardware_lock, flags); ctrl_status = readw(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); if ((ctrl_status & CSR_SOFT_RESET) == 0) { status = QLA_SUCCESS; break; } msleep(1000); } while ((--max_wait_time)); /* * Also, make sure that the SCSI Reset Interrupt bit has been cleared * after the soft reset has taken place. */ spin_lock_irqsave(&ha->hardware_lock, flags); ctrl_status = readw(&ha->reg->ctrl_status); if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); } spin_unlock_irqrestore(&ha->hardware_lock, flags); /* If soft reset fails then most probably the bios on other * function is also enabled. * Since the initialization is sequential the other fn * wont be able to acknowledge the soft reset. * Issue a force soft reset to workaround this scenario. */ if (max_wait_time == 0) { /* Issue Force Soft Reset */ spin_lock_irqsave(&ha->hardware_lock, flags); writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); /* Wait until the firmware tells us the Soft Reset is done */ max_wait_time = SOFT_RESET_TOV; do { spin_lock_irqsave(&ha->hardware_lock, flags); ctrl_status = readw(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { status = QLA_SUCCESS; break; } msleep(1000); } while ((--max_wait_time)); } return status; } /** * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. * @ha: Pointer to host adapter structure. * @res: returned scsi status * * This routine is called just prior to a HARD RESET to return all * outstanding commands back to the Operating System. * Caller should make sure that the following locks are released * before this calling routine: Hardware lock, and io_request_lock. **/ static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) { struct srb *srb; int i; unsigned long flags; spin_lock_irqsave(&ha->hardware_lock, flags); for (i = 0; i < ha->host->can_queue; i++) { srb = qla4xxx_del_from_active_array(ha, i); if (srb != NULL) { srb->cmd->result = res; kref_put(&srb->srb_ref, qla4xxx_srb_compl); } } spin_unlock_irqrestore(&ha->hardware_lock, flags); } void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) { clear_bit(AF_ONLINE, &ha->flags); /* Disable the board */ ql4_printk(KERN_INFO, ha, "Disabling the board\n"); qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); qla4xxx_mark_all_devices_missing(ha); clear_bit(AF_INIT_DONE, &ha->flags); } static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) { struct iscsi_session *sess; struct ddb_entry *ddb_entry; sess = cls_session->dd_data; ddb_entry = sess->dd_data; ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; if (ddb_entry->ddb_type == FLASH_DDB) iscsi_block_session(ddb_entry->sess); else iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED); } /** * qla4xxx_recover_adapter - recovers adapter after a fatal error * @ha: Pointer to host adapter structure. **/ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) { int status = QLA_ERROR; uint8_t reset_chip = 0; uint32_t dev_state; unsigned long wait; /* Stall incoming I/O until we are done */ scsi_block_requests(ha->host); clear_bit(AF_ONLINE, &ha->flags); clear_bit(AF_LINK_UP, &ha->flags); DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); if ((is_qla8032(ha) || is_qla8042(ha)) && !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", __func__); /* disable pause frame for ISP83xx */ qla4_83xx_disable_pause(ha); } iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) reset_chip = 1; /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) * do not reset adapter, jump to initialize_adapter */ if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { status = QLA_SUCCESS; goto recover_ha_init_adapter; } /* For the ISP-8xxx adapter, issue a stop_firmware if invoked * from eh_host_reset or ioctl module */ if (is_qla80XX(ha) && !reset_chip && test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld: %s - Performing stop_firmware...\n", ha->host_no, __func__)); status = ha->isp_ops->reset_firmware(ha); if (status == QLA_SUCCESS) { ha->isp_ops->disable_intrs(ha); qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); qla4xxx_abort_active_cmds(ha, DID_RESET << 16); } else { /* If the stop_firmware fails then * reset the entire chip */ reset_chip = 1; clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); set_bit(DPC_RESET_HA, &ha->dpc_flags); } } /* Issue full chip reset if recovering from a catastrophic error, * or if stop_firmware fails for ISP-8xxx. * This is the default case for ISP-4xxx */ if (is_qla40XX(ha) || reset_chip) { if (is_qla40XX(ha)) goto chip_reset; /* Check if 8XXX firmware is alive or not * We may have arrived here from NEED_RESET * detection only */ if (test_bit(AF_FW_RECOVERY, &ha->flags)) goto chip_reset; wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); while (time_before(jiffies, wait)) { if (qla4_8xxx_check_fw_alive(ha)) { qla4xxx_mailbox_premature_completion(ha); break; } set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(HZ); } chip_reset: if (!test_bit(AF_FW_RECOVERY, &ha->flags)) qla4xxx_cmd_wait(ha); qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld: %s - Performing chip reset..\n", ha->host_no, __func__)); status = ha->isp_ops->reset_chip(ha); qla4xxx_abort_active_cmds(ha, DID_RESET << 16); } /* Flush any pending ddb changed AENs */ qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); recover_ha_init_adapter: /* Upon successful firmware/chip reset, re-initialize the adapter */ if (status == QLA_SUCCESS) { /* For ISP-4xxx, force function 1 to always initialize * before function 3 to prevent both funcions from * stepping on top of the other */ if (is_qla40XX(ha) && (ha->mac_index == 3)) ssleep(6); /* NOTE: AF_ONLINE flag set upon successful completion of * qla4xxx_initialize_adapter */ status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); if (is_qla80XX(ha) && (status == QLA_ERROR)) { status = qla4_8xxx_check_init_adapter_retry(ha); if (status == QLA_ERROR) { ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", ha->host_no, __func__); qla4xxx_dead_adapter_cleanup(ha); clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); clear_bit(DPC_RESET_HA, &ha->dpc_flags); clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); goto exit_recover; } } } /* Retry failed adapter initialization, if necessary * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) * case to prevent ping-pong resets between functions */ if (!test_bit(AF_ONLINE, &ha->flags) && !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { /* Adapter initialization failed, see if we can retry * resetting the ha. * Since we don't want to block the DPC for too long * with multiple resets in the same thread, * utilize DPC to retry */ if (is_qla80XX(ha)) { ha->isp_ops->idc_lock(ha); dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); ha->isp_ops->idc_unlock(ha); if (dev_state == QLA8XXX_DEV_FAILED) { ql4_printk(KERN_INFO, ha, "%s: don't retry " "recover adapter. H/W is in Failed " "state\n", __func__); qla4xxx_dead_adapter_cleanup(ha); clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); clear_bit(DPC_RESET_HA, &ha->dpc_flags); clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); status = QLA_ERROR; goto exit_recover; } } if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; DEBUG2(printk("scsi%ld: recover adapter - retrying " "(%d) more times\n", ha->host_no, ha->retry_reset_ha_cnt)); set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); status = QLA_ERROR; } else { if (ha->retry_reset_ha_cnt > 0) { /* Schedule another Reset HA--DPC will retry */ ha->retry_reset_ha_cnt--; DEBUG2(printk("scsi%ld: recover adapter - " "retry remaining %d\n", ha->host_no, ha->retry_reset_ha_cnt)); status = QLA_ERROR; } if (ha->retry_reset_ha_cnt == 0) { /* Recover adapter retries have been exhausted. * Adapter DEAD */ DEBUG2(printk("scsi%ld: recover adapter " "failed - board disabled\n", ha->host_no)); qla4xxx_dead_adapter_cleanup(ha); clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); clear_bit(DPC_RESET_HA, &ha->dpc_flags); clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); status = QLA_ERROR; } } } else { clear_bit(DPC_RESET_HA, &ha->dpc_flags); clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); } exit_recover: ha->adapter_error_count++; if (test_bit(AF_ONLINE, &ha->flags)) ha->isp_ops->enable_intrs(ha); scsi_unblock_requests(ha->host); clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); return status; } static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) { struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; sess = cls_session->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; if (!iscsi_is_session_online(cls_session)) { if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" " unblock session\n", ha->host_no, __func__, ddb_entry->fw_ddb_index); iscsi_unblock_session(ddb_entry->sess); } else { /* Trigger relogin */ if (ddb_entry->ddb_type == FLASH_DDB) { if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))) qla4xxx_arm_relogin_timer(ddb_entry); } else iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED); } } } int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) { struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; sess = cls_session->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" " unblock session\n", ha->host_no, __func__, ddb_entry->fw_ddb_index); iscsi_unblock_session(ddb_entry->sess); /* Start scan target */ if (test_bit(AF_ONLINE, &ha->flags)) { ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" " start scan\n", ha->host_no, __func__, ddb_entry->fw_ddb_index); scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); } return QLA_SUCCESS; } int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) { struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; int status = QLA_SUCCESS; sess = cls_session->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" " unblock user space session\n", ha->host_no, __func__, ddb_entry->fw_ddb_index); if (!iscsi_is_session_online(cls_session)) { iscsi_conn_start(ddb_entry->conn); iscsi_conn_login_event(ddb_entry->conn, ISCSI_CONN_STATE_LOGGED_IN); } else { ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", ha->host_no, __func__, ddb_entry->fw_ddb_index, cls_session->sid); status = QLA_ERROR; } return status; } static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) { iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); } static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) { uint16_t relogin_timer; struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; relogin_timer = max(ddb_entry->default_relogin_timeout, (uint16_t)RELOGIN_TOV); atomic_set(&ddb_entry->relogin_timer, relogin_timer); DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, ddb_entry->fw_ddb_index, relogin_timer)); qla4xxx_login_flash_ddb(cls_sess); } static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) { struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; if (!(ddb_entry->ddb_type == FLASH_DDB)) return; if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) return; if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && !iscsi_is_session_online(cls_sess)) { DEBUG2(ql4_printk(KERN_INFO, ha, "relogin issued\n")); qla4xxx_relogin_flash_ddb(cls_sess); } } void qla4xxx_wake_dpc(struct scsi_qla_host *ha) { if (ha->dpc_thread) queue_work(ha->dpc_thread, &ha->dpc_work); } static struct qla4_work_evt * qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, enum qla4_work_type type) { struct qla4_work_evt *e; uint32_t size = sizeof(struct qla4_work_evt) + data_size; e = kzalloc(size, GFP_ATOMIC); if (!e) return NULL; INIT_LIST_HEAD(&e->list); e->type = type; return e; } static void qla4xxx_post_work(struct scsi_qla_host *ha, struct qla4_work_evt *e) { unsigned long flags; spin_lock_irqsave(&ha->work_lock, flags); list_add_tail(&e->list, &ha->work_list); spin_unlock_irqrestore(&ha->work_lock, flags); qla4xxx_wake_dpc(ha); } int qla4xxx_post_aen_work(struct scsi_qla_host *ha, enum iscsi_host_event_code aen_code, uint32_t data_size, uint8_t *data) { struct qla4_work_evt *e; e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); if (!e) return QLA_ERROR; e->u.aen.code = aen_code; e->u.aen.data_size = data_size; memcpy(e->u.aen.data, data, data_size); qla4xxx_post_work(ha, e); return QLA_SUCCESS; } int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, uint32_t status, uint32_t pid, uint32_t data_size, uint8_t *data) { struct qla4_work_evt *e; e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); if (!e) return QLA_ERROR; e->u.ping.status = status; e->u.ping.pid = pid; e->u.ping.data_size = data_size; memcpy(e->u.ping.data, data, data_size); qla4xxx_post_work(ha, e); return QLA_SUCCESS; } static void qla4xxx_do_work(struct scsi_qla_host *ha) { struct qla4_work_evt *e, *tmp; unsigned long flags; LIST_HEAD(work); spin_lock_irqsave(&ha->work_lock, flags); list_splice_init(&ha->work_list, &work); spin_unlock_irqrestore(&ha->work_lock, flags); list_for_each_entry_safe(e, tmp, &work, list) { list_del_init(&e->list); switch (e->type) { case QLA4_EVENT_AEN: iscsi_post_host_event(ha->host_no, &qla4xxx_iscsi_transport, e->u.aen.code, e->u.aen.data_size, e->u.aen.data); break; case QLA4_EVENT_PING_STATUS: iscsi_ping_comp_event(ha->host_no, &qla4xxx_iscsi_transport, e->u.ping.status, e->u.ping.pid, e->u.ping.data_size, e->u.ping.data); break; default: ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " "supported", e->type); } kfree(e); } } /** * qla4xxx_do_dpc - dpc routine * @data: in our case pointer to adapter structure * * This routine is a task that is schedule by the interrupt handler * to perform the background processing for interrupts. We put it * on a task queue that is consumed whenever the scheduler runs; that's * so you can do anything (i.e. put the process to sleep etc). In fact, * the mid-level tries to sleep when it reaches the driver threshold * "host->can_queue". This can cause a panic if we were in our interrupt code. **/ static void qla4xxx_do_dpc(struct work_struct *work) { struct scsi_qla_host *ha = container_of(work, struct scsi_qla_host, dpc_work); int status = QLA_ERROR; DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n", ha->host_no, __func__, ha->flags, ha->dpc_flags)); /* Initialization not yet finished. Don't do anything yet. */ if (!test_bit(AF_INIT_DONE, &ha->flags)) return; if (test_bit(AF_EEH_BUSY, &ha->flags)) { DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", ha->host_no, __func__, ha->flags)); return; } /* post events to application */ qla4xxx_do_work(ha); if (is_qla80XX(ha)) { if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { if (is_qla8032(ha) || is_qla8042(ha)) { ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", __func__); /* disable pause frame for ISP83xx */ qla4_83xx_disable_pause(ha); } ha->isp_ops->idc_lock(ha); qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED); ha->isp_ops->idc_unlock(ha); ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); qla4_8xxx_device_state_handler(ha); } if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { if (is_qla8042(ha)) { if (ha->idc_info.info2 & ENABLE_INTERNAL_LOOPBACK) { ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", __func__); status = qla4_84xx_config_acb(ha, ACB_CONFIG_DISABLE); if (status != QLA_SUCCESS) { ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", __func__); } } } qla4_83xx_post_idc_ack(ha); clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); } if (is_qla8042(ha) && test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", __func__); if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != QLA_SUCCESS) { ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", __func__); } clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); } if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { qla4_8xxx_need_qsnt_handler(ha); } } if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && (test_bit(DPC_RESET_HA, &ha->dpc_flags) || test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { if ((is_qla8022(ha) && ql4xdontresethba) || ((is_qla8032(ha) || is_qla8042(ha)) && qla4_83xx_idc_dontreset(ha))) { DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", ha->host_no, __func__)); clear_bit(DPC_RESET_HA, &ha->dpc_flags); clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); goto dpc_post_reset_ha; } if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || test_bit(DPC_RESET_HA, &ha->dpc_flags)) qla4xxx_recover_adapter(ha); if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { uint8_t wait_time = RESET_INTR_TOV; while ((readw(&ha->reg->ctrl_status) & (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { if (--wait_time == 0) break; msleep(1000); } if (wait_time == 0) DEBUG2(printk("scsi%ld: %s: SR|FSR " "bit not cleared-- resetting\n", ha->host_no, __func__)); qla4xxx_abort_active_cmds(ha, DID_RESET << 16); if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); status = qla4xxx_recover_adapter(ha); } clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); if (status == QLA_SUCCESS) ha->isp_ops->enable_intrs(ha); } } dpc_post_reset_ha: /* ---- process AEN? --- */ if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) qla4xxx_process_aen(ha, PROCESS_ALL_AENS); /* ---- Get DHCP IP Address? --- */ if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) qla4xxx_get_dhcp_ip_address(ha); /* ---- relogin device? --- */ if (adapter_up(ha) && test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); } /* ---- link change? --- */ if (!test_bit(AF_LOOPBACK, &ha->flags) && test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { if (!test_bit(AF_LINK_UP, &ha->flags)) { /* ---- link down? --- */ qla4xxx_mark_all_devices_missing(ha); } else { /* ---- link up? --- * * F/W will auto login to all devices ONLY ONCE after * link up during driver initialization and runtime * fatal error recovery. Therefore, the driver must * manually relogin to devices when recovering from * connection failures, logouts, expired KATO, etc. */ if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { qla4xxx_build_ddb_list(ha, ha->is_reset); iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); } else qla4xxx_relogin_all_devices(ha); } } if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) { if (qla4xxx_sysfs_ddb_export(ha)) ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n", __func__); } } /** * qla4xxx_free_adapter - release the adapter * @ha: pointer to adapter structure **/ static void qla4xxx_free_adapter(struct scsi_qla_host *ha) { qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); /* Turn-off interrupts on the card. */ ha->isp_ops->disable_intrs(ha); if (is_qla40XX(ha)) { writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); } else if (is_qla8022(ha)) { writel(0, &ha->qla4_82xx_reg->host_int); readl(&ha->qla4_82xx_reg->host_int); } else if (is_qla8032(ha) || is_qla8042(ha)) { writel(0, &ha->qla4_83xx_reg->risc_intr); readl(&ha->qla4_83xx_reg->risc_intr); } /* Remove timer thread, if present */ if (ha->timer_active) qla4xxx_stop_timer(ha); /* Kill the kernel thread for this host */ if (ha->dpc_thread) destroy_workqueue(ha->dpc_thread); /* Kill the kernel thread for this host */ if (ha->task_wq) destroy_workqueue(ha->task_wq); /* Put firmware in known state */ ha->isp_ops->reset_firmware(ha); if (is_qla80XX(ha)) { ha->isp_ops->idc_lock(ha); qla4_8xxx_clear_drv_active(ha); ha->isp_ops->idc_unlock(ha); } /* Detach interrupts */ qla4xxx_free_irqs(ha); /* free extra memory */ qla4xxx_mem_free(ha); } int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) { int status = 0; unsigned long mem_base, mem_len, db_base, db_len; struct pci_dev *pdev = ha->pdev; status = pci_request_regions(pdev, DRIVER_NAME); if (status) { printk(KERN_WARNING "scsi(%ld) Failed to reserve PIO regions (%s) " "status=%d\n", ha->host_no, pci_name(pdev), status); goto iospace_error_exit; } DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", __func__, pdev->revision)); ha->revision_id = pdev->revision; /* remap phys address */ mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ mem_len = pci_resource_len(pdev, 0); DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", __func__, mem_base, mem_len)); /* mapping of pcibase pointer */ ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); if (!ha->nx_pcibase) { printk(KERN_ERR "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); pci_release_regions(ha->pdev); goto iospace_error_exit; } /* Mapping of IO base pointer, door bell read and write pointer */ /* mapping of IO base pointer */ if (is_qla8022(ha)) { ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) ((uint8_t *)ha->nx_pcibase + 0xbc000 + (ha->pdev->devfn << 11)); ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : QLA82XX_CAM_RAM_DB2); } else if (is_qla8032(ha) || is_qla8042(ha)) { ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) ((uint8_t *)ha->nx_pcibase); } db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ db_len = pci_resource_len(pdev, 4); return 0; iospace_error_exit: return -ENOMEM; } /*** * qla4xxx_iospace_config - maps registers * @ha: pointer to adapter structure * * This routines maps HBA's registers from the pci address space * into the kernel virtual address space for memory mapped i/o. **/ int qla4xxx_iospace_config(struct scsi_qla_host *ha) { unsigned long pio, pio_len, pio_flags; unsigned long mmio, mmio_len, mmio_flags; pio = pci_resource_start(ha->pdev, 0); pio_len = pci_resource_len(ha->pdev, 0); pio_flags = pci_resource_flags(ha->pdev, 0); if (pio_flags & IORESOURCE_IO) { if (pio_len < MIN_IOBASE_LEN) { ql4_printk(KERN_WARNING, ha, "Invalid PCI I/O region size\n"); pio = 0; } } else { ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); pio = 0; } /* Use MMIO operations for all accesses. */ mmio = pci_resource_start(ha->pdev, 1); mmio_len = pci_resource_len(ha->pdev, 1); mmio_flags = pci_resource_flags(ha->pdev, 1); if (!(mmio_flags & IORESOURCE_MEM)) { ql4_printk(KERN_ERR, ha, "region #0 not an MMIO resource, aborting\n"); goto iospace_error_exit; } if (mmio_len < MIN_IOBASE_LEN) { ql4_printk(KERN_ERR, ha, "Invalid PCI mem region size, aborting\n"); goto iospace_error_exit; } if (pci_request_regions(ha->pdev, DRIVER_NAME)) { ql4_printk(KERN_WARNING, ha, "Failed to reserve PIO/MMIO regions\n"); goto iospace_error_exit; } ha->pio_address = pio; ha->pio_length = pio_len; ha->reg = ioremap(mmio, MIN_IOBASE_LEN); if (!ha->reg) { ql4_printk(KERN_ERR, ha, "cannot remap MMIO, aborting\n"); goto iospace_error_exit; } return 0; iospace_error_exit: return -ENOMEM; } static struct isp_operations qla4xxx_isp_ops = { .iospace_config = qla4xxx_iospace_config, .pci_config = qla4xxx_pci_config, .disable_intrs = qla4xxx_disable_intrs, .enable_intrs = qla4xxx_enable_intrs, .start_firmware = qla4xxx_start_firmware, .intr_handler = qla4xxx_intr_handler, .interrupt_service_routine = qla4xxx_interrupt_service_routine, .reset_chip = qla4xxx_soft_reset, .reset_firmware = qla4xxx_hw_reset, .queue_iocb = qla4xxx_queue_iocb, .complete_iocb = qla4xxx_complete_iocb, .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, .get_sys_info = qla4xxx_get_sys_info, .queue_mailbox_command = qla4xxx_queue_mbox_cmd, .process_mailbox_interrupt = qla4xxx_process_mbox_intr, }; static struct isp_operations qla4_82xx_isp_ops = { .iospace_config = qla4_8xxx_iospace_config, .pci_config = qla4_8xxx_pci_config, .disable_intrs = qla4_82xx_disable_intrs, .enable_intrs = qla4_82xx_enable_intrs, .start_firmware = qla4_8xxx_load_risc, .restart_firmware = qla4_82xx_try_start_fw, .intr_handler = qla4_82xx_intr_handler, .interrupt_service_routine = qla4_82xx_interrupt_service_routine, .need_reset = qla4_8xxx_need_reset, .reset_chip = qla4_82xx_isp_reset, .reset_firmware = qla4_8xxx_stop_firmware, .queue_iocb = qla4_82xx_queue_iocb, .complete_iocb = qla4_82xx_complete_iocb, .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, .get_sys_info = qla4_8xxx_get_sys_info, .rd_reg_direct = qla4_82xx_rd_32, .wr_reg_direct = qla4_82xx_wr_32, .rd_reg_indirect = qla4_82xx_md_rd_32, .wr_reg_indirect = qla4_82xx_md_wr_32, .idc_lock = qla4_82xx_idc_lock, .idc_unlock = qla4_82xx_idc_unlock, .rom_lock_recovery = qla4_82xx_rom_lock_recovery, .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, }; static struct isp_operations qla4_83xx_isp_ops = { .iospace_config = qla4_8xxx_iospace_config, .pci_config = qla4_8xxx_pci_config, .disable_intrs = qla4_83xx_disable_intrs, .enable_intrs = qla4_83xx_enable_intrs, .start_firmware = qla4_8xxx_load_risc, .restart_firmware = qla4_83xx_start_firmware, .intr_handler = qla4_83xx_intr_handler, .interrupt_service_routine = qla4_83xx_interrupt_service_routine, .need_reset = qla4_8xxx_need_reset, .reset_chip = qla4_83xx_isp_reset, .reset_firmware = qla4_8xxx_stop_firmware, .queue_iocb = qla4_83xx_queue_iocb, .complete_iocb = qla4_83xx_complete_iocb, .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, .get_sys_info = qla4_8xxx_get_sys_info, .rd_reg_direct = qla4_83xx_rd_reg, .wr_reg_direct = qla4_83xx_wr_reg, .rd_reg_indirect = qla4_83xx_rd_reg_indirect, .wr_reg_indirect = qla4_83xx_wr_reg_indirect, .idc_lock = qla4_83xx_drv_lock, .idc_unlock = qla4_83xx_drv_unlock, .rom_lock_recovery = qla4_83xx_rom_lock_recovery, .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, }; uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) { return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); } uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) { return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); } uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) { return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); } uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) { return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); } static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) { struct scsi_qla_host *ha = data; char *str = buf; int rc; switch (type) { case ISCSI_BOOT_ETH_FLAGS: rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); break; case ISCSI_BOOT_ETH_INDEX: rc = sprintf(str, "0\n"); break; case ISCSI_BOOT_ETH_MAC: rc = sysfs_format_mac(str, ha->my_mac, MAC_ADDR_LEN); break; default: rc = -ENOSYS; break; } return rc; } static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) { int rc; switch (type) { case ISCSI_BOOT_ETH_FLAGS: case ISCSI_BOOT_ETH_MAC: case ISCSI_BOOT_ETH_INDEX: rc = S_IRUGO; break; default: rc = 0; break; } return rc; } static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) { struct scsi_qla_host *ha = data; char *str = buf; int rc; switch (type) { case ISCSI_BOOT_INI_INITIATOR_NAME: rc = sprintf(str, "%s\n", ha->name_string); break; default: rc = -ENOSYS; break; } return rc; } static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) { int rc; switch (type) { case ISCSI_BOOT_INI_INITIATOR_NAME: rc = S_IRUGO; break; default: rc = 0; break; } return rc; } static ssize_t qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, char *buf) { struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; char *str = buf; int rc; switch (type) { case ISCSI_BOOT_TGT_NAME: rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); break; case ISCSI_BOOT_TGT_IP_ADDR: if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) rc = sprintf(buf, "%pI4\n", &boot_conn->dest_ipaddr.ip_address); else rc = sprintf(str, "%pI6\n", &boot_conn->dest_ipaddr.ip_address); break; case ISCSI_BOOT_TGT_PORT: rc = sprintf(str, "%d\n", boot_conn->dest_port); break; case ISCSI_BOOT_TGT_CHAP_NAME: rc = sprintf(str, "%.*s\n", boot_conn->chap.target_chap_name_length, (char *)&boot_conn->chap.target_chap_name); break; case ISCSI_BOOT_TGT_CHAP_SECRET: rc = sprintf(str, "%.*s\n", boot_conn->chap.target_secret_length, (char *)&boot_conn->chap.target_secret); break; case ISCSI_BOOT_TGT_REV_CHAP_NAME: rc = sprintf(str, "%.*s\n", boot_conn->chap.intr_chap_name_length, (char *)&boot_conn->chap.intr_chap_name); break; case ISCSI_BOOT_TGT_REV_CHAP_SECRET: rc = sprintf(str, "%.*s\n", boot_conn->chap.intr_secret_length, (char *)&boot_conn->chap.intr_secret); break; case ISCSI_BOOT_TGT_FLAGS: rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); break; case ISCSI_BOOT_TGT_NIC_ASSOC: rc = sprintf(str, "0\n"); break; default: rc = -ENOSYS; break; } return rc; } static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) { struct scsi_qla_host *ha = data; struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); } static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) { struct scsi_qla_host *ha = data; struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); } static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) { int rc; switch (type) { case ISCSI_BOOT_TGT_NAME: case ISCSI_BOOT_TGT_IP_ADDR: case ISCSI_BOOT_TGT_PORT: case ISCSI_BOOT_TGT_CHAP_NAME: case ISCSI_BOOT_TGT_CHAP_SECRET: case ISCSI_BOOT_TGT_REV_CHAP_NAME: case ISCSI_BOOT_TGT_REV_CHAP_SECRET: case ISCSI_BOOT_TGT_NIC_ASSOC: case ISCSI_BOOT_TGT_FLAGS: rc = S_IRUGO; break; default: rc = 0; break; } return rc; } static void qla4xxx_boot_release(void *data) { struct scsi_qla_host *ha = data; scsi_host_put(ha->host); } static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) { dma_addr_t buf_dma; uint32_t addr, pri_addr, sec_addr; uint32_t offset; uint16_t func_num; uint8_t val; uint8_t *buf = NULL; size_t size = 13 * sizeof(uint8_t); int ret = QLA_SUCCESS; func_num = PCI_FUNC(ha->pdev->devfn); ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", __func__, ha->pdev->device, func_num); if (is_qla40XX(ha)) { if (func_num == 1) { addr = NVRAM_PORT0_BOOT_MODE; pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; } else if (func_num == 3) { addr = NVRAM_PORT1_BOOT_MODE; pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; } else { ret = QLA_ERROR; goto exit_boot_info; } /* Check Boot Mode */ val = rd_nvram_byte(ha, addr); if (!(val & 0x07)) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " "options : 0x%x\n", __func__, val)); ret = QLA_ERROR; goto exit_boot_info; } /* get primary valid target index */ val = rd_nvram_byte(ha, pri_addr); if (val & BIT_7) ddb_index[0] = (val & 0x7f); /* get secondary valid target index */ val = rd_nvram_byte(ha, sec_addr); if (val & BIT_7) ddb_index[1] = (val & 0x7f); } else if (is_qla80XX(ha)) { buf = dma_alloc_coherent(&ha->pdev->dev, size, &buf_dma, GFP_KERNEL); if (!buf) { DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__)); ret = QLA_ERROR; goto exit_boot_info; } if (ha->port_num == 0) offset = BOOT_PARAM_OFFSET_PORT0; else if (ha->port_num == 1) offset = BOOT_PARAM_OFFSET_PORT1; else { ret = QLA_ERROR; goto exit_boot_info_free; } addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + offset; if (qla4xxx_get_flash(ha, buf_dma, addr, 13 * sizeof(uint8_t)) != QLA_SUCCESS) { DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" " failed\n", ha->host_no, __func__)); ret = QLA_ERROR; goto exit_boot_info_free; } /* Check Boot Mode */ if (!(buf[1] & 0x07)) { DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" " : 0x%x\n", buf[1])); ret = QLA_ERROR; goto exit_boot_info_free; } /* get primary valid target index */ if (buf[2] & BIT_7) ddb_index[0] = buf[2] & 0x7f; /* get secondary valid target index */ if (buf[11] & BIT_7) ddb_index[1] = buf[11] & 0x7f; } else { ret = QLA_ERROR; goto exit_boot_info; } DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" " target ID %d\n", __func__, ddb_index[0], ddb_index[1])); exit_boot_info_free: dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); exit_boot_info: ha->pri_ddb_idx = ddb_index[0]; ha->sec_ddb_idx = ddb_index[1]; return ret; } /** * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password * @ha: pointer to adapter structure * @username: CHAP username to be returned * @password: CHAP password to be returned * * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. * So from the CHAP cache find the first BIDI CHAP entry and set it * to the boot record in sysfs. **/ static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, char *password) { int i, ret = -EINVAL; int max_chap_entries = 0; struct ql4_chap_table *chap_table; if (is_qla80XX(ha)) max_chap_entries = (ha->hw.flt_chap_size / 2) / sizeof(struct ql4_chap_table); else max_chap_entries = MAX_CHAP_ENTRIES_40XX; if (!ha->chap_list) { ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); return ret; } mutex_lock(&ha->chap_sem); for (i = 0; i < max_chap_entries; i++) { chap_table = (struct ql4_chap_table *)ha->chap_list + i; if (chap_table->cookie != __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { continue; } if (chap_table->flags & BIT_7) /* local */ continue; if (!(chap_table->flags & BIT_6)) /* Not BIDI */ continue; strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); ret = 0; break; } mutex_unlock(&ha->chap_sem); return ret; } static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, struct ql4_boot_session_info *boot_sess, uint16_t ddb_index) { struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; struct dev_db_entry *fw_ddb_entry; dma_addr_t fw_ddb_entry_dma; uint16_t idx; uint16_t options; int ret = QLA_SUCCESS; fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer.\n", __func__)); ret = QLA_ERROR; return ret; } if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, ddb_index)) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " "index [%d]\n", __func__, ddb_index)); ret = QLA_ERROR; goto exit_boot_target; } /* Update target name and IP from DDB */ memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, min(sizeof(boot_sess->target_name), sizeof(fw_ddb_entry->iscsi_name))); options = le16_to_cpu(fw_ddb_entry->options); if (options & DDB_OPT_IPV6_DEVICE) { memcpy(&boot_conn->dest_ipaddr.ip_address, &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); } else { boot_conn->dest_ipaddr.ip_type = 0x1; memcpy(&boot_conn->dest_ipaddr.ip_address, &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); } boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); /* update chap information */ idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. target_chap_name, (char *)&boot_conn->chap.target_secret, idx); if (ret) { ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); ret = QLA_ERROR; goto exit_boot_target; } boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; } if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); ret = qla4xxx_get_bidi_chap(ha, (char *)&boot_conn->chap.intr_chap_name, (char *)&boot_conn->chap.intr_secret); if (ret) { ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); ret = QLA_ERROR; goto exit_boot_target; } boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; } exit_boot_target: dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); return ret; } static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) { uint16_t ddb_index[2]; int ret = QLA_ERROR; int rval; memset(ddb_index, 0, sizeof(ddb_index)); ddb_index[0] = 0xffff; ddb_index[1] = 0xffff; ret = get_fw_boot_info(ha, ddb_index); if (ret != QLA_SUCCESS) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No boot target configured.\n", __func__)); return ret; } if (ql4xdisablesysfsboot) return QLA_SUCCESS; if (ddb_index[0] == 0xffff) goto sec_target; rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), ddb_index[0]); if (rval != QLA_SUCCESS) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " "configured\n", __func__)); } else ret = QLA_SUCCESS; sec_target: if (ddb_index[1] == 0xffff) goto exit_get_boot_info; rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), ddb_index[1]); if (rval != QLA_SUCCESS) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" " configured\n", __func__)); } else ret = QLA_SUCCESS; exit_get_boot_info: return ret; } static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) { struct iscsi_boot_kobj *boot_kobj; if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) return QLA_ERROR; if (ql4xdisablesysfsboot) { ql4_printk(KERN_INFO, ha, "%s: syfsboot disabled - driver will trigger login " "and publish session for discovery .\n", __func__); return QLA_SUCCESS; } ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); if (!ha->boot_kset) goto kset_free; if (!scsi_host_get(ha->host)) goto kset_free; boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, qla4xxx_show_boot_tgt_pri_info, qla4xxx_tgt_get_attr_visibility, qla4xxx_boot_release); if (!boot_kobj) goto put_host; if (!scsi_host_get(ha->host)) goto kset_free; boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, qla4xxx_show_boot_tgt_sec_info, qla4xxx_tgt_get_attr_visibility, qla4xxx_boot_release); if (!boot_kobj) goto put_host; if (!scsi_host_get(ha->host)) goto kset_free; boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, qla4xxx_show_boot_ini_info, qla4xxx_ini_get_attr_visibility, qla4xxx_boot_release); if (!boot_kobj) goto put_host; if (!scsi_host_get(ha->host)) goto kset_free; boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, qla4xxx_show_boot_eth_info, qla4xxx_eth_get_attr_visibility, qla4xxx_boot_release); if (!boot_kobj) goto put_host; return QLA_SUCCESS; put_host: scsi_host_put(ha->host); kset_free: iscsi_boot_destroy_kset(ha->boot_kset); return -ENOMEM; } static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, struct ql4_tuple_ddb *tddb) { struct scsi_qla_host *ha; struct iscsi_cls_session *cls_sess; struct iscsi_cls_conn *cls_conn; struct iscsi_session *sess; struct iscsi_conn *conn; DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); ha = ddb_entry->ha; cls_sess = ddb_entry->sess; sess = cls_sess->dd_data; cls_conn = ddb_entry->conn; conn = cls_conn->dd_data; tddb->tpgt = sess->tpgt; tddb->port = conn->persistent_port; strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); } static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, struct ql4_tuple_ddb *tddb, uint8_t *flash_isid) { uint16_t options = 0; tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); options = le16_to_cpu(fw_ddb_entry->options); if (options & DDB_OPT_IPV6_DEVICE) sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); else sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); tddb->port = le16_to_cpu(fw_ddb_entry->port); if (flash_isid == NULL) memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], sizeof(tddb->isid)); else memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); } static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, struct ql4_tuple_ddb *old_tddb, struct ql4_tuple_ddb *new_tddb, uint8_t is_isid_compare) { if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) return QLA_ERROR; if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) return QLA_ERROR; if (old_tddb->port != new_tddb->port) return QLA_ERROR; /* For multi sessions, driver generates the ISID, so do not compare * ISID in reset path since it would be a comparison between the * driver generated ISID and firmware generated ISID. This could * lead to adding duplicated DDBs in the list as driver generated * ISID would not match firmware generated ISID. */ if (is_isid_compare) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%pmR] New ISID [%pmR]\n", __func__, old_tddb->isid, new_tddb->isid)); if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], sizeof(old_tddb->isid))) return QLA_ERROR; } DEBUG2(ql4_printk(KERN_INFO, ha, "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, new_tddb->ip_addr, new_tddb->iscsi_name)); return QLA_SUCCESS; } static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint32_t *index) { struct ddb_entry *ddb_entry; struct ql4_tuple_ddb *fw_tddb = NULL; struct ql4_tuple_ddb *tmp_tddb = NULL; int idx; int ret = QLA_ERROR; fw_tddb = vzalloc(sizeof(*fw_tddb)); if (!fw_tddb) { DEBUG2(ql4_printk(KERN_WARNING, ha, "Memory Allocation failed.\n")); ret = QLA_SUCCESS; goto exit_check; } tmp_tddb = vzalloc(sizeof(*tmp_tddb)); if (!tmp_tddb) { DEBUG2(ql4_printk(KERN_WARNING, ha, "Memory Allocation failed.\n")); ret = QLA_SUCCESS; goto exit_check; } qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); if (ddb_entry == NULL) continue; qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { ret = QLA_SUCCESS; /* found */ if (index != NULL) *index = idx; goto exit_check; } } exit_check: if (fw_tddb) vfree(fw_tddb); if (tmp_tddb) vfree(tmp_tddb); return ret; } /** * qla4xxx_check_existing_isid - check if target with same isid exist * in target list * @list_nt: list of target * @isid: isid to check * * This routine return QLA_SUCCESS if target with same isid exist **/ static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) { struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; struct dev_db_entry *fw_ddb_entry; list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { fw_ddb_entry = &nt_ddb_idx->fw_ddb; if (memcmp(&fw_ddb_entry->isid[0], &isid[0], sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { return QLA_SUCCESS; } } return QLA_ERROR; } /** * qla4xxx_update_isid - compare ddbs and updated isid * @ha: Pointer to host adapter structure. * @list_nt: list of nt target * @fw_ddb_entry: firmware ddb entry * * This routine update isid if ddbs have same iqn, same isid and * different IP addr. * Return QLA_SUCCESS if isid is updated. **/ static int qla4xxx_update_isid(struct scsi_qla_host *ha, struct list_head *list_nt, struct dev_db_entry *fw_ddb_entry) { uint8_t base_value, i; base_value = fw_ddb_entry->isid[1] & 0x1f; for (i = 0; i < 8; i++) { fw_ddb_entry->isid[1] = (base_value | (i << 5)); if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) break; } if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) return QLA_ERROR; return QLA_SUCCESS; } /** * qla4xxx_should_update_isid - check if isid need to update * @ha: Pointer to host adapter structure. * @old_tddb: ddb tuple * @new_tddb: ddb tuple * * Return QLA_SUCCESS if different IP, different PORT, same iqn, * same isid **/ static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, struct ql4_tuple_ddb *old_tddb, struct ql4_tuple_ddb *new_tddb) { if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { /* Same ip */ if (old_tddb->port == new_tddb->port) return QLA_ERROR; } if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) /* different iqn */ return QLA_ERROR; if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], sizeof(old_tddb->isid))) /* different isid */ return QLA_ERROR; return QLA_SUCCESS; } /** * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt * @ha: Pointer to host adapter structure. * @list_nt: list of nt target. * @fw_ddb_entry: firmware ddb entry. * * This routine check if fw_ddb_entry already exists in list_nt to avoid * duplicate ddb in list_nt. * Return QLA_SUCCESS if duplicate ddb exit in list_nl. * Note: This function also update isid of DDB if required. **/ static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, struct list_head *list_nt, struct dev_db_entry *fw_ddb_entry) { struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; struct ql4_tuple_ddb *fw_tddb = NULL; struct ql4_tuple_ddb *tmp_tddb = NULL; int rval, ret = QLA_ERROR; fw_tddb = vzalloc(sizeof(*fw_tddb)); if (!fw_tddb) { DEBUG2(ql4_printk(KERN_WARNING, ha, "Memory Allocation failed.\n")); ret = QLA_SUCCESS; goto exit_check; } tmp_tddb = vzalloc(sizeof(*tmp_tddb)); if (!tmp_tddb) { DEBUG2(ql4_printk(KERN_WARNING, ha, "Memory Allocation failed.\n")); ret = QLA_SUCCESS; goto exit_check; } qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, nt_ddb_idx->flash_isid); ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); /* found duplicate ddb */ if (ret == QLA_SUCCESS) goto exit_check; } list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); if (ret == QLA_SUCCESS) { rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); if (rval == QLA_SUCCESS) ret = QLA_ERROR; else ret = QLA_SUCCESS; goto exit_check; } } exit_check: if (fw_tddb) vfree(fw_tddb); if (tmp_tddb) vfree(tmp_tddb); return ret; } static void qla4xxx_free_ddb_list(struct list_head *list_ddb) { struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { list_del_init(&ddb_idx->list); vfree(ddb_idx); } } static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry) { struct iscsi_endpoint *ep; struct sockaddr_in *addr; struct sockaddr_in6 *addr6; struct sockaddr *t_addr; struct sockaddr_storage *dst_addr; char *ip; /* TODO: need to destroy on unload iscsi_endpoint*/ dst_addr = vmalloc(sizeof(*dst_addr)); if (!dst_addr) return NULL; if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { t_addr = (struct sockaddr *)dst_addr; t_addr->sa_family = AF_INET6; addr6 = (struct sockaddr_in6 *)dst_addr; ip = (char *)&addr6->sin6_addr; memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); } else { t_addr = (struct sockaddr *)dst_addr; t_addr->sa_family = AF_INET; addr = (struct sockaddr_in *)dst_addr; ip = (char *)&addr->sin_addr; memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); } ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); vfree(dst_addr); return ep; } static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) { if (ql4xdisablesysfsboot) return QLA_SUCCESS; if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) return QLA_ERROR; return QLA_SUCCESS; } static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry, uint16_t idx) { uint16_t def_timeout; ddb_entry->ddb_type = FLASH_DDB; ddb_entry->fw_ddb_index = INVALID_ENTRY; ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; ddb_entry->ha = ha; ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; ddb_entry->ddb_change = qla4xxx_flash_ddb_change; ddb_entry->chap_tbl_idx = INVALID_ENTRY; atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); atomic_set(&ddb_entry->relogin_timer, 0); atomic_set(&ddb_entry->relogin_retry_count, 0); def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); ddb_entry->default_relogin_timeout = (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? def_timeout : LOGIN_TOV; ddb_entry->default_time2wait = le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); if (ql4xdisablesysfsboot && (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) set_bit(DF_BOOT_TGT, &ddb_entry->flags); } static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) { uint32_t idx = 0; uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ uint32_t sts[MBOX_REG_COUNT]; uint32_t ip_state; unsigned long wtime; int ret; wtime = jiffies + (HZ * IP_CONFIG_TOV); do { for (idx = 0; idx < IP_ADDR_COUNT; idx++) { if (ip_idx[idx] == -1) continue; ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); if (ret == QLA_ERROR) { ip_idx[idx] = -1; continue; } ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for IP state for idx = %d, state = 0x%x\n", ip_idx[idx], ip_state)); if (ip_state == IP_ADDRSTATE_UNCONFIGURED || ip_state == IP_ADDRSTATE_INVALID || ip_state == IP_ADDRSTATE_PREFERRED || ip_state == IP_ADDRSTATE_DEPRICATED || ip_state == IP_ADDRSTATE_DISABLING) ip_idx[idx] = -1; } /* Break if all IP states checked */ if ((ip_idx[0] == -1) && (ip_idx[1] == -1) && (ip_idx[2] == -1) && (ip_idx[3] == -1)) break; schedule_timeout_uninterruptible(HZ); } while (time_after(wtime, jiffies)); } static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, struct dev_db_entry *flash_ddb_entry) { uint16_t options = 0; size_t ip_len = IP_ADDR_LEN; options = le16_to_cpu(fw_ddb_entry->options); if (options & DDB_OPT_IPV6_DEVICE) ip_len = IPv6_ADDR_LEN; if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) return QLA_ERROR; if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], sizeof(fw_ddb_entry->isid))) return QLA_ERROR; if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, sizeof(fw_ddb_entry->port))) return QLA_ERROR; return QLA_SUCCESS; } static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint32_t fw_idx, uint32_t *flash_index) { struct dev_db_entry *flash_ddb_entry; dma_addr_t flash_ddb_entry_dma; uint32_t idx = 0; int max_ddbs; int ret = QLA_ERROR, status; max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : MAX_DEV_DB_ENTRIES; flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, &flash_ddb_entry_dma); if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { ql4_printk(KERN_ERR, ha, "Out of memory\n"); goto exit_find_st_idx; } status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, flash_ddb_entry_dma, fw_idx); if (status == QLA_SUCCESS) { status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); if (status == QLA_SUCCESS) { *flash_index = fw_idx; ret = QLA_SUCCESS; goto exit_find_st_idx; } } for (idx = 0; idx < max_ddbs; idx++) { status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, flash_ddb_entry_dma, idx); if (status == QLA_ERROR) continue; status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); if (status == QLA_SUCCESS) { *flash_index = idx; ret = QLA_SUCCESS; goto exit_find_st_idx; } } if (idx == max_ddbs) ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", fw_idx); exit_find_st_idx: if (flash_ddb_entry) dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, flash_ddb_entry_dma); return ret; } static void qla4xxx_build_st_list(struct scsi_qla_host *ha, struct list_head *list_st) { struct qla_ddb_index *st_ddb_idx; int max_ddbs; int fw_idx_size; struct dev_db_entry *fw_ddb_entry; dma_addr_t fw_ddb_dma; int ret; uint32_t idx = 0, next_idx = 0; uint32_t state = 0, conn_err = 0; uint32_t flash_index = -1; uint16_t conn_id = 0; fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, &fw_ddb_dma); if (fw_ddb_entry == NULL) { DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); goto exit_st_list; } max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : MAX_DEV_DB_ENTRIES; fw_idx_size = sizeof(struct qla_ddb_index); for (idx = 0; idx < max_ddbs; idx = next_idx) { ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, NULL, &next_idx, &state, &conn_err, NULL, &conn_id); if (ret == QLA_ERROR) break; /* Ignore DDB if invalid state (unassigned) */ if (state == DDB_DS_UNASSIGNED) goto continue_next_st; /* Check if ST, add to the list_st */ if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) goto continue_next_st; st_ddb_idx = vzalloc(fw_idx_size); if (!st_ddb_idx) break; ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, &flash_index); if (ret == QLA_ERROR) { ql4_printk(KERN_ERR, ha, "No flash entry for ST at idx [%d]\n", idx); st_ddb_idx->flash_ddb_idx = idx; } else { ql4_printk(KERN_INFO, ha, "ST at idx [%d] is stored at flash [%d]\n", idx, flash_index); st_ddb_idx->flash_ddb_idx = flash_index; } st_ddb_idx->fw_ddb_idx = idx; list_add_tail(&st_ddb_idx->list, list_st); continue_next_st: if (next_idx == 0) break; } exit_st_list: if (fw_ddb_entry) dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); } /** * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list * @ha: pointer to adapter structure * @list_ddb: List from which failed ddb to be removed * * Iterate over the list of DDBs and find and remove DDBs that are either in * no connection active state or failed state **/ static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, struct list_head *list_ddb) { struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; uint32_t next_idx = 0; uint32_t state = 0, conn_err = 0; int ret; list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, NULL, 0, NULL, &next_idx, &state, &conn_err, NULL, NULL); if (ret == QLA_ERROR) continue; if (state == DDB_DS_NO_CONNECTION_ACTIVE || state == DDB_DS_SESSION_FAILED) { list_del_init(&ddb_idx->list); vfree(ddb_idx); } } } static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry, struct dev_db_entry *fw_ddb_entry) { struct iscsi_cls_session *cls_sess; struct iscsi_session *sess; uint32_t max_ddbs = 0; uint16_t ddb_link = -1; max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : MAX_DEV_DB_ENTRIES; cls_sess = ddb_entry->sess; sess = cls_sess->dd_data; ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); if (ddb_link < max_ddbs) sess->discovery_parent_idx = ddb_link; else sess->discovery_parent_idx = DDB_NO_LINK; } static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, int is_reset, uint16_t idx) { struct iscsi_cls_session *cls_sess; struct iscsi_session *sess; struct iscsi_cls_conn *cls_conn; struct iscsi_endpoint *ep; uint16_t cmds_max = 32; uint16_t conn_id = 0; uint32_t initial_cmdsn = 0; int ret = QLA_SUCCESS; struct ddb_entry *ddb_entry = NULL; /* Create session object, with INVALID_ENTRY, * the targer_id would get set when we issue the login */ cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, cmds_max, sizeof(struct ddb_entry), sizeof(struct ql4_task_data), initial_cmdsn, INVALID_ENTRY); if (!cls_sess) { ret = QLA_ERROR; goto exit_setup; } /* * so calling module_put function to decrement the * reference count. **/ module_put(qla4xxx_iscsi_transport.owner); sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ddb_entry->sess = cls_sess; cls_sess->recovery_tmo = ql4xsess_recovery_tmo; memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, sizeof(struct dev_db_entry)); qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); if (!cls_conn) { ret = QLA_ERROR; goto exit_setup; } ddb_entry->conn = cls_conn; /* Setup ep, for displaying attributes in sysfs */ ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); if (ep) { ep->conn = cls_conn; cls_conn->ep = ep; } else { DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); ret = QLA_ERROR; goto exit_setup; } /* Update sess/conn params */ qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); if (is_reset == RESET_ADAPTER) { iscsi_block_session(cls_sess); /* Use the relogin path to discover new devices * by short-circuting the logic of setting * timer to relogin - instead set the flags * to initiate login right away. */ set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); set_bit(DF_RELOGIN, &ddb_entry->flags); } exit_setup: return ret; } static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, struct list_head *list_ddb, struct dev_db_entry *fw_ddb_entry) { struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; uint16_t ddb_link; ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { if (ddb_idx->fw_ddb_idx == ddb_link) { DEBUG2(ql4_printk(KERN_INFO, ha, "Updating NT parent idx from [%d] to [%d]\n", ddb_link, ddb_idx->flash_ddb_idx)); fw_ddb_entry->ddb_link = cpu_to_le16(ddb_idx->flash_ddb_idx); return; } } } static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, struct list_head *list_nt, struct list_head *list_st, int is_reset) { struct dev_db_entry *fw_ddb_entry; struct ddb_entry *ddb_entry = NULL; dma_addr_t fw_ddb_dma; int max_ddbs; int fw_idx_size; int ret; uint32_t idx = 0, next_idx = 0; uint32_t state = 0, conn_err = 0; uint32_t ddb_idx = -1; uint16_t conn_id = 0; uint16_t ddb_link = -1; struct qla_ddb_index *nt_ddb_idx; fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, &fw_ddb_dma); if (fw_ddb_entry == NULL) { DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); goto exit_nt_list; } max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : MAX_DEV_DB_ENTRIES; fw_idx_size = sizeof(struct qla_ddb_index); for (idx = 0; idx < max_ddbs; idx = next_idx) { ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, NULL, &next_idx, &state, &conn_err, NULL, &conn_id); if (ret == QLA_ERROR) break; if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) goto continue_next_nt; /* Check if NT, then add to list it */ if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) goto continue_next_nt; ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); if (ddb_link < max_ddbs) qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || state == DDB_DS_SESSION_FAILED) && (is_reset == INIT_ADAPTER)) goto continue_next_nt; DEBUG2(ql4_printk(KERN_INFO, ha, "Adding DDB to session = 0x%x\n", idx)); if (is_reset == INIT_ADAPTER) { nt_ddb_idx = vmalloc(fw_idx_size); if (!nt_ddb_idx) break; nt_ddb_idx->fw_ddb_idx = idx; /* Copy original isid as it may get updated in function * qla4xxx_update_isid(). We need original isid in * function qla4xxx_compare_tuple_ddb to find duplicate * target */ memcpy(&nt_ddb_idx->flash_isid[0], &fw_ddb_entry->isid[0], sizeof(nt_ddb_idx->flash_isid)); ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, fw_ddb_entry); if (ret == QLA_SUCCESS) { /* free nt_ddb_idx and do not add to list_nt */ vfree(nt_ddb_idx); goto continue_next_nt; } /* Copy updated isid */ memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, sizeof(struct dev_db_entry)); list_add_tail(&nt_ddb_idx->list, list_nt); } else if (is_reset == RESET_ADAPTER) { ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, &ddb_idx); if (ret == QLA_SUCCESS) { ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, ddb_idx); if (ddb_entry != NULL) qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); goto continue_next_nt; } } ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); if (ret == QLA_ERROR) goto exit_nt_list; continue_next_nt: if (next_idx == 0) break; } exit_nt_list: if (fw_ddb_entry) dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); } static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, struct list_head *list_nt, uint16_t target_id) { struct dev_db_entry *fw_ddb_entry; dma_addr_t fw_ddb_dma; int max_ddbs; int fw_idx_size; int ret; uint32_t idx = 0, next_idx = 0; uint32_t state = 0, conn_err = 0; uint16_t conn_id = 0; struct qla_ddb_index *nt_ddb_idx; fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, &fw_ddb_dma); if (fw_ddb_entry == NULL) { DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); goto exit_new_nt_list; } max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : MAX_DEV_DB_ENTRIES; fw_idx_size = sizeof(struct qla_ddb_index); for (idx = 0; idx < max_ddbs; idx = next_idx) { ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, NULL, &next_idx, &state, &conn_err, NULL, &conn_id); if (ret == QLA_ERROR) break; /* Check if NT, then add it to list */ if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) goto continue_next_new_nt; if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) goto continue_next_new_nt; DEBUG2(ql4_printk(KERN_INFO, ha, "Adding DDB to session = 0x%x\n", idx)); nt_ddb_idx = vmalloc(fw_idx_size); if (!nt_ddb_idx) break; nt_ddb_idx->fw_ddb_idx = idx; ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); if (ret == QLA_SUCCESS) { /* free nt_ddb_idx and do not add to list_nt */ vfree(nt_ddb_idx); goto continue_next_new_nt; } if (target_id < max_ddbs) fw_ddb_entry->ddb_link = cpu_to_le16(target_id); list_add_tail(&nt_ddb_idx->list, list_nt); ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, idx); if (ret == QLA_ERROR) goto exit_new_nt_list; continue_next_new_nt: if (next_idx == 0) break; } exit_new_nt_list: if (fw_ddb_entry) dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); } /** * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry * @dev: dev associated with the sysfs entry * @data: pointer to flashnode session object * * Returns: * 1: if flashnode entry is non-persistent * 0: if flashnode entry is persistent **/ static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) { struct iscsi_bus_flash_session *fnode_sess; if (!iscsi_flashnode_bus_match(dev, NULL)) return 0; fnode_sess = iscsi_dev_to_flash_session(dev); return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); } /** * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target * @ha: pointer to host * @fw_ddb_entry: flash ddb data * @idx: target index * @user: if set then this call is made from userland else from kernel * * Returns: * On sucess: QLA_SUCCESS * On failure: QLA_ERROR * * This create separate sysfs entries for session and connection attributes of * the given fw ddb entry. * If this is invoked as a result of a userspace call then the entry is marked * as nonpersistent using flash_state field. **/ static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint16_t *idx, int user) { struct iscsi_bus_flash_session *fnode_sess = NULL; struct iscsi_bus_flash_conn *fnode_conn = NULL; int rc = QLA_ERROR; fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, &qla4xxx_iscsi_transport, 0); if (!fnode_sess) { ql4_printk(KERN_ERR, ha, "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", __func__, *idx, ha->host_no); goto exit_tgt_create; } fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, &qla4xxx_iscsi_transport, 0); if (!fnode_conn) { ql4_printk(KERN_ERR, ha, "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", __func__, *idx, ha->host_no); goto free_sess; } if (user) { fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; } else { fnode_sess->flash_state = DEV_DB_PERSISTENT; if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) fnode_sess->is_boot_target = 1; else fnode_sess->is_boot_target = 0; } rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); if (rc) goto free_sess; ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", __func__, fnode_sess->dev.kobj.name); ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", __func__, fnode_conn->dev.kobj.name); return QLA_SUCCESS; free_sess: iscsi_destroy_flashnode_sess(fnode_sess); exit_tgt_create: return QLA_ERROR; } /** * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash * @shost: pointer to host * @buf: type of ddb entry (ipv4/ipv6) * @len: length of buf * * This creates new ddb entry in the flash by finding first free index and * storing default ddb there. And then create sysfs entry for the new ddb entry. **/ static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, int len) { struct scsi_qla_host *ha = to_qla_host(shost); struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; struct device *dev; uint16_t idx = 0; uint16_t max_ddbs = 0; uint32_t options = 0; uint32_t rval = QLA_ERROR; if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", __func__)); goto exit_ddb_add; } max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : MAX_DEV_DB_ENTRIES; fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__)); goto exit_ddb_add; } dev = iscsi_find_flashnode_sess(ha->host, NULL, qla4xxx_sysfs_ddb_is_non_persistent); if (dev) { ql4_printk(KERN_ERR, ha, "%s: A non-persistent entry %s found\n", __func__, dev->kobj.name); put_device(dev); goto exit_ddb_add; } /* Index 0 and 1 are reserved for boot target entries */ for (idx = 2; idx < max_ddbs; idx++) { if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, idx)) break; } if (idx == max_ddbs) goto exit_ddb_add; if (!strncasecmp("ipv6", buf, 4)) options |= IPV6_DEFAULT_DDB_ENTRY; rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); if (rval == QLA_ERROR) goto exit_ddb_add; rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); exit_ddb_add: if (fw_ddb_entry) dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); if (rval == QLA_SUCCESS) return idx; else return -EIO; } /** * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash * @fnode_sess: pointer to session attrs of flash ddb entry * @fnode_conn: pointer to connection attrs of flash ddb entry * * This writes the contents of target ddb buffer to Flash with a valid cookie * value in order to make the ddb entry persistent. **/ static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; uint32_t options = 0; int rval = 0; fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__)); rval = -ENOMEM; goto exit_ddb_apply; } if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) options |= IPV6_DEFAULT_DDB_ENTRY; rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); if (rval == QLA_ERROR) goto exit_ddb_apply; dev_db_start_offset += (fnode_sess->target_id * sizeof(*fw_ddb_entry)); qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); fw_ddb_entry->cookie = DDB_VALID_COOKIE; rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); if (rval == QLA_SUCCESS) { fnode_sess->flash_state = DEV_DB_PERSISTENT; ql4_printk(KERN_INFO, ha, "%s: flash node %u of host %lu written to flash\n", __func__, fnode_sess->target_id, ha->host_no); } else { rval = -EIO; ql4_printk(KERN_ERR, ha, "%s: Error while writing flash node %u of host %lu to flash\n", __func__, fnode_sess->target_id, ha->host_no); } exit_ddb_apply: if (fw_ddb_entry) dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); return rval; } static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint16_t idx) { struct dev_db_entry *ddb_entry = NULL; dma_addr_t ddb_entry_dma; unsigned long wtime; uint32_t mbx_sts = 0; uint32_t state = 0, conn_err = 0; uint16_t tmo = 0; int ret = 0; ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), &ddb_entry_dma, GFP_KERNEL); if (!ddb_entry) { DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__)); return QLA_ERROR; } memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); if (ret != QLA_SUCCESS) { DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to set ddb entry for index %d\n", __func__, idx)); goto exit_ddb_conn_open; } qla4xxx_conn_open(ha, idx); /* To ensure that sendtargets is done, wait for at least 12 secs */ tmo = ((ha->def_timeout > LOGIN_TOV) && (ha->def_timeout < LOGIN_TOV * 10) ? ha->def_timeout : LOGIN_TOV); DEBUG2(ql4_printk(KERN_INFO, ha, "Default time to wait for login to ddb %d\n", tmo)); wtime = jiffies + (HZ * tmo); do { ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, NULL, &state, &conn_err, NULL, NULL); if (ret == QLA_ERROR) continue; if (state == DDB_DS_NO_CONNECTION_ACTIVE || state == DDB_DS_SESSION_FAILED) break; schedule_timeout_uninterruptible(HZ / 10); } while (time_after(wtime, jiffies)); exit_ddb_conn_open: if (ddb_entry) dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), ddb_entry, ddb_entry_dma); return ret; } static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint16_t target_id) { struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; struct list_head list_nt; uint16_t ddb_index; int ret = 0; if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { ql4_printk(KERN_WARNING, ha, "%s: A discovery already in progress!\n", __func__); return QLA_ERROR; } INIT_LIST_HEAD(&list_nt); set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); ret = qla4xxx_get_ddb_index(ha, &ddb_index); if (ret == QLA_ERROR) goto exit_login_st_clr_bit; ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); if (ret == QLA_ERROR) goto exit_login_st; qla4xxx_build_new_nt_list(ha, &list_nt, target_id); list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { list_del_init(&ddb_idx->list); qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); vfree(ddb_idx); } exit_login_st: if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { ql4_printk(KERN_ERR, ha, "Unable to clear DDB index = 0x%x\n", ddb_index); } clear_bit(ddb_index, ha->ddb_idx_map); exit_login_st_clr_bit: clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); return ret; } static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint16_t idx) { int ret = QLA_ERROR; ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); if (ret != QLA_SUCCESS) ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, idx); else ret = -EPERM; return ret; } /** * qla4xxx_sysfs_ddb_login - Login to the specified target * @fnode_sess: pointer to session attrs of flash ddb entry * @fnode_conn: pointer to connection attrs of flash ddb entry * * This logs in to the specified target **/ static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; uint32_t options = 0; int ret = 0; if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { ql4_printk(KERN_ERR, ha, "%s: Target info is not persistent\n", __func__); ret = -EIO; goto exit_ddb_login; } fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__)); ret = -ENOMEM; goto exit_ddb_login; } if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) options |= IPV6_DEFAULT_DDB_ENTRY; ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); if (ret == QLA_ERROR) goto exit_ddb_login; qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); fw_ddb_entry->cookie = DDB_VALID_COOKIE; if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, fnode_sess->target_id); else ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, fnode_sess->target_id); if (ret > 0) ret = -EIO; exit_ddb_login: if (fw_ddb_entry) dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); return ret; } /** * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target * @cls_sess: pointer to session to be logged out * * This performs session log out from the specified target **/ static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) { struct iscsi_session *sess; struct ddb_entry *ddb_entry = NULL; struct scsi_qla_host *ha; struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; unsigned long flags; unsigned long wtime; uint32_t ddb_state; int options; int ret = 0; sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ha = ddb_entry->ha; if (ddb_entry->ddb_type != FLASH_DDB) { ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", __func__); ret = -ENXIO; goto exit_ddb_logout; } if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { ql4_printk(KERN_ERR, ha, "%s: Logout from boot target entry is not permitted.\n", __func__); ret = -EPERM; goto exit_ddb_logout; } fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__); ret = -ENOMEM; goto exit_ddb_logout; } if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) goto ddb_logout_init; ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, fw_ddb_entry_dma, NULL, NULL, &ddb_state, NULL, NULL, NULL); if (ret == QLA_ERROR) goto ddb_logout_init; if (ddb_state == DDB_DS_SESSION_ACTIVE) goto ddb_logout_init; /* wait until next relogin is triggered using DF_RELOGIN and * clear DF_RELOGIN to avoid invocation of further relogin */ wtime = jiffies + (HZ * RELOGIN_TOV); do { if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) goto ddb_logout_init; schedule_timeout_uninterruptible(HZ); } while ((time_after(wtime, jiffies))); ddb_logout_init: atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); atomic_set(&ddb_entry->relogin_timer, 0); options = LOGOUT_OPTION_CLOSE_SESSION; qla4xxx_session_logout_ddb(ha, ddb_entry, options); memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); wtime = jiffies + (HZ * LOGOUT_TOV); do { ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, fw_ddb_entry_dma, NULL, NULL, &ddb_state, NULL, NULL, NULL); if (ret == QLA_ERROR) goto ddb_logout_clr_sess; if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || (ddb_state == DDB_DS_SESSION_FAILED)) goto ddb_logout_clr_sess; schedule_timeout_uninterruptible(HZ); } while ((time_after(wtime, jiffies))); ddb_logout_clr_sess: qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); /* * we have decremented the reference count of the driver * when we setup the session to have the driver unload * to be seamless without actually destroying the * session **/ try_module_get(qla4xxx_iscsi_transport.owner); iscsi_destroy_endpoint(ddb_entry->conn->ep); spin_lock_irqsave(&ha->hardware_lock, flags); qla4xxx_free_ddb(ha, ddb_entry); clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); spin_unlock_irqrestore(&ha->hardware_lock, flags); iscsi_session_teardown(ddb_entry->sess); clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); ret = QLA_SUCCESS; exit_ddb_logout: if (fw_ddb_entry) dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); return ret; } /** * qla4xxx_sysfs_ddb_logout - Logout from the specified target * @fnode_sess: pointer to session attrs of flash ddb entry * @fnode_conn: pointer to connection attrs of flash ddb entry * * This performs log out from the specified target **/ static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); struct ql4_tuple_ddb *flash_tddb = NULL; struct ql4_tuple_ddb *tmp_tddb = NULL; struct dev_db_entry *fw_ddb_entry = NULL; struct ddb_entry *ddb_entry = NULL; dma_addr_t fw_ddb_dma; uint32_t next_idx = 0; uint32_t state = 0, conn_err = 0; uint16_t conn_id = 0; int idx, index; int status, ret = 0; fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, &fw_ddb_dma); if (fw_ddb_entry == NULL) { ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); ret = -ENOMEM; goto exit_ddb_logout; } flash_tddb = vzalloc(sizeof(*flash_tddb)); if (!flash_tddb) { ql4_printk(KERN_WARNING, ha, "%s:Memory Allocation failed.\n", __func__); ret = -ENOMEM; goto exit_ddb_logout; } tmp_tddb = vzalloc(sizeof(*tmp_tddb)); if (!tmp_tddb) { ql4_printk(KERN_WARNING, ha, "%s:Memory Allocation failed.\n", __func__); ret = -ENOMEM; goto exit_ddb_logout; } if (!fnode_sess->targetname) { ql4_printk(KERN_ERR, ha, "%s:Cannot logout from SendTarget entry\n", __func__); ret = -EPERM; goto exit_ddb_logout; } if (fnode_sess->is_boot_target) { ql4_printk(KERN_ERR, ha, "%s: Logout from boot target entry is not permitted.\n", __func__); ret = -EPERM; goto exit_ddb_logout; } strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname, ISCSI_NAME_SIZE); if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); else sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); flash_tddb->tpgt = fnode_sess->tpgt; flash_tddb->port = fnode_conn->port; COPY_ISID(flash_tddb->isid, fnode_sess->isid); for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); if (ddb_entry == NULL) continue; if (ddb_entry->ddb_type != FLASH_DDB) continue; index = ddb_entry->sess->target_id; status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, fw_ddb_dma, NULL, &next_idx, &state, &conn_err, NULL, &conn_id); if (status == QLA_ERROR) { ret = -ENOMEM; break; } qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, true); if (status == QLA_SUCCESS) { ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); break; } } if (idx == MAX_DDB_ENTRIES) ret = -ESRCH; exit_ddb_logout: if (flash_tddb) vfree(flash_tddb); if (tmp_tddb) vfree(tmp_tddb); if (fw_ddb_entry) dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); return ret; } static int qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, int param, char *buf) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); struct iscsi_bus_flash_conn *fnode_conn; struct ql4_chap_table chap_tbl; struct device *dev; int parent_type; int rc = 0; dev = iscsi_find_flashnode_conn(fnode_sess); if (!dev) return -EIO; fnode_conn = iscsi_dev_to_flash_conn(dev); switch (param) { case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); break; case ISCSI_FLASHNODE_PORTAL_TYPE: rc = sprintf(buf, "%s\n", fnode_sess->portal_type); break; case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); break; case ISCSI_FLASHNODE_DISCOVERY_SESS: rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); break; case ISCSI_FLASHNODE_ENTRY_EN: rc = sprintf(buf, "%u\n", fnode_sess->entry_state); break; case ISCSI_FLASHNODE_HDR_DGST_EN: rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); break; case ISCSI_FLASHNODE_DATA_DGST_EN: rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); break; case ISCSI_FLASHNODE_IMM_DATA_EN: rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); break; case ISCSI_FLASHNODE_INITIAL_R2T_EN: rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); break; case ISCSI_FLASHNODE_DATASEQ_INORDER: rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); break; case ISCSI_FLASHNODE_PDU_INORDER: rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); break; case ISCSI_FLASHNODE_CHAP_AUTH_EN: rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); break; case ISCSI_FLASHNODE_SNACK_REQ_EN: rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); break; case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); break; case ISCSI_FLASHNODE_BIDI_CHAP_EN: rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); break; case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); break; case ISCSI_FLASHNODE_ERL: rc = sprintf(buf, "%u\n", fnode_sess->erl); break; case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); break; case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); break; case ISCSI_FLASHNODE_TCP_WSF_DISABLE: rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); break; case ISCSI_FLASHNODE_TCP_TIMER_SCALE: rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); break; case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); break; case ISCSI_FLASHNODE_IP_FRAG_DISABLE: rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); break; case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); break; case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); break; case ISCSI_FLASHNODE_FIRST_BURST: rc = sprintf(buf, "%u\n", fnode_sess->first_burst); break; case ISCSI_FLASHNODE_DEF_TIME2WAIT: rc = sprintf(buf, "%u\n", fnode_sess->time2wait); break; case ISCSI_FLASHNODE_DEF_TIME2RETAIN: rc = sprintf(buf, "%u\n", fnode_sess->time2retain); break; case ISCSI_FLASHNODE_MAX_R2T: rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); break; case ISCSI_FLASHNODE_KEEPALIVE_TMO: rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); break; case ISCSI_FLASHNODE_ISID: rc = sprintf(buf, "%pm\n", fnode_sess->isid); break; case ISCSI_FLASHNODE_TSID: rc = sprintf(buf, "%u\n", fnode_sess->tsid); break; case ISCSI_FLASHNODE_PORT: rc = sprintf(buf, "%d\n", fnode_conn->port); break; case ISCSI_FLASHNODE_MAX_BURST: rc = sprintf(buf, "%u\n", fnode_sess->max_burst); break; case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: rc = sprintf(buf, "%u\n", fnode_sess->default_taskmgmt_timeout); break; case ISCSI_FLASHNODE_IPADDR: if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); else rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); break; case ISCSI_FLASHNODE_ALIAS: if (fnode_sess->targetalias) rc = sprintf(buf, "%s\n", fnode_sess->targetalias); else rc = sprintf(buf, "\n"); break; case ISCSI_FLASHNODE_REDIRECT_IPADDR: if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) rc = sprintf(buf, "%pI6\n", fnode_conn->redirect_ipaddr); else rc = sprintf(buf, "%pI4\n", fnode_conn->redirect_ipaddr); break; case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); break; case ISCSI_FLASHNODE_LOCAL_PORT: rc = sprintf(buf, "%u\n", fnode_conn->local_port); break; case ISCSI_FLASHNODE_IPV4_TOS: rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); break; case ISCSI_FLASHNODE_IPV6_TC: if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) rc = sprintf(buf, "%u\n", fnode_conn->ipv6_traffic_class); else rc = sprintf(buf, "\n"); break; case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); break; case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) rc = sprintf(buf, "%pI6\n", fnode_conn->link_local_ipv6_addr); else rc = sprintf(buf, "\n"); break; case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); break; case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: if (fnode_sess->discovery_parent_type == DDB_ISNS) parent_type = ISCSI_DISC_PARENT_ISNS; else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) parent_type = ISCSI_DISC_PARENT_UNKNOWN; else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) parent_type = ISCSI_DISC_PARENT_SENDTGT; else parent_type = ISCSI_DISC_PARENT_UNKNOWN; rc = sprintf(buf, "%s\n", iscsi_get_discovery_parent_name(parent_type)); break; case ISCSI_FLASHNODE_NAME: if (fnode_sess->targetname) rc = sprintf(buf, "%s\n", fnode_sess->targetname); else rc = sprintf(buf, "\n"); break; case ISCSI_FLASHNODE_TPGT: rc = sprintf(buf, "%u\n", fnode_sess->tpgt); break; case ISCSI_FLASHNODE_TCP_XMIT_WSF: rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); break; case ISCSI_FLASHNODE_TCP_RECV_WSF: rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); break; case ISCSI_FLASHNODE_CHAP_OUT_IDX: rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); break; case ISCSI_FLASHNODE_USERNAME: if (fnode_sess->chap_auth_en) { qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, chap_tbl.secret, fnode_sess->chap_out_idx); rc = sprintf(buf, "%s\n", chap_tbl.name); } else { rc = sprintf(buf, "\n"); } break; case ISCSI_FLASHNODE_PASSWORD: if (fnode_sess->chap_auth_en) { qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, chap_tbl.secret, fnode_sess->chap_out_idx); rc = sprintf(buf, "%s\n", chap_tbl.secret); } else { rc = sprintf(buf, "\n"); } break; case ISCSI_FLASHNODE_STATSN: rc = sprintf(buf, "%u\n", fnode_conn->statsn); break; case ISCSI_FLASHNODE_EXP_STATSN: rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); break; case ISCSI_FLASHNODE_IS_BOOT_TGT: rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); break; default: rc = -ENOSYS; break; } put_device(dev); return rc; } /** * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry * @fnode_sess: pointer to session attrs of flash ddb entry * @fnode_conn: pointer to connection attrs of flash ddb entry * @data: Parameters and their values to update * @len: len of data * * This sets the parameter of flash ddb entry and writes them to flash **/ static int qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn, void *data, int len) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); struct iscsi_flashnode_param_info *fnode_param; struct ql4_chap_table chap_tbl; struct nlattr *attr; uint16_t chap_out_idx = INVALID_ENTRY; int rc = QLA_ERROR; uint32_t rem = len; memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); nla_for_each_attr(attr, data, len, rem) { fnode_param = nla_data(attr); switch (fnode_param->param) { case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; break; case ISCSI_FLASHNODE_PORTAL_TYPE: memcpy(fnode_sess->portal_type, fnode_param->value, strlen(fnode_sess->portal_type)); break; case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: fnode_sess->auto_snd_tgt_disable = fnode_param->value[0]; break; case ISCSI_FLASHNODE_DISCOVERY_SESS: fnode_sess->discovery_sess = fnode_param->value[0]; break; case ISCSI_FLASHNODE_ENTRY_EN: fnode_sess->entry_state = fnode_param->value[0]; break; case ISCSI_FLASHNODE_HDR_DGST_EN: fnode_conn->hdrdgst_en = fnode_param->value[0]; break; case ISCSI_FLASHNODE_DATA_DGST_EN: fnode_conn->datadgst_en = fnode_param->value[0]; break; case ISCSI_FLASHNODE_IMM_DATA_EN: fnode_sess->imm_data_en = fnode_param->value[0]; break; case ISCSI_FLASHNODE_INITIAL_R2T_EN: fnode_sess->initial_r2t_en = fnode_param->value[0]; break; case ISCSI_FLASHNODE_DATASEQ_INORDER: fnode_sess->dataseq_inorder_en = fnode_param->value[0]; break; case ISCSI_FLASHNODE_PDU_INORDER: fnode_sess->pdu_inorder_en = fnode_param->value[0]; break; case ISCSI_FLASHNODE_CHAP_AUTH_EN: fnode_sess->chap_auth_en = fnode_param->value[0]; /* Invalidate chap index if chap auth is disabled */ if (!fnode_sess->chap_auth_en) fnode_sess->chap_out_idx = INVALID_ENTRY; break; case ISCSI_FLASHNODE_SNACK_REQ_EN: fnode_conn->snack_req_en = fnode_param->value[0]; break; case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: fnode_sess->discovery_logout_en = fnode_param->value[0]; break; case ISCSI_FLASHNODE_BIDI_CHAP_EN: fnode_sess->bidi_chap_en = fnode_param->value[0]; break; case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: fnode_sess->discovery_auth_optional = fnode_param->value[0]; break; case ISCSI_FLASHNODE_ERL: fnode_sess->erl = fnode_param->value[0]; break; case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; break; case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: fnode_conn->tcp_nagle_disable = fnode_param->value[0]; break; case ISCSI_FLASHNODE_TCP_WSF_DISABLE: fnode_conn->tcp_wsf_disable = fnode_param->value[0]; break; case ISCSI_FLASHNODE_TCP_TIMER_SCALE: fnode_conn->tcp_timer_scale = fnode_param->value[0]; break; case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: fnode_conn->tcp_timestamp_en = fnode_param->value[0]; break; case ISCSI_FLASHNODE_IP_FRAG_DISABLE: fnode_conn->fragment_disable = fnode_param->value[0]; break; case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: fnode_conn->max_recv_dlength = *(unsigned *)fnode_param->value; break; case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: fnode_conn->max_xmit_dlength = *(unsigned *)fnode_param->value; break; case ISCSI_FLASHNODE_FIRST_BURST: fnode_sess->first_burst = *(unsigned *)fnode_param->value; break; case ISCSI_FLASHNODE_DEF_TIME2WAIT: fnode_sess->time2wait = *(uint16_t *)fnode_param->value; break; case ISCSI_FLASHNODE_DEF_TIME2RETAIN: fnode_sess->time2retain = *(uint16_t *)fnode_param->value; break; case ISCSI_FLASHNODE_MAX_R2T: fnode_sess->max_r2t = *(uint16_t *)fnode_param->value; break; case ISCSI_FLASHNODE_KEEPALIVE_TMO: fnode_conn->keepalive_timeout = *(uint16_t *)fnode_param->value; break; case ISCSI_FLASHNODE_ISID: memcpy(fnode_sess->isid, fnode_param->value, sizeof(fnode_sess->isid)); break; case ISCSI_FLASHNODE_TSID: fnode_sess->tsid = *(uint16_t *)fnode_param->value; break; case ISCSI_FLASHNODE_PORT: fnode_conn->port = *(uint16_t *)fnode_param->value; break; case ISCSI_FLASHNODE_MAX_BURST: fnode_sess->max_burst = *(unsigned *)fnode_param->value; break; case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: fnode_sess->default_taskmgmt_timeout = *(uint16_t *)fnode_param->value; break; case ISCSI_FLASHNODE_IPADDR: memcpy(fnode_conn->ipaddress, fnode_param->value, IPv6_ADDR_LEN); break; case ISCSI_FLASHNODE_ALIAS: rc = iscsi_switch_str_param(&fnode_sess->targetalias, (char *)fnode_param->value); break; case ISCSI_FLASHNODE_REDIRECT_IPADDR: memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, IPv6_ADDR_LEN); break; case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: fnode_conn->max_segment_size = *(unsigned *)fnode_param->value; break; case ISCSI_FLASHNODE_LOCAL_PORT: fnode_conn->local_port = *(uint16_t *)fnode_param->value; break; case ISCSI_FLASHNODE_IPV4_TOS: fnode_conn->ipv4_tos = fnode_param->value[0]; break; case ISCSI_FLASHNODE_IPV6_TC: fnode_conn->ipv6_traffic_class = fnode_param->value[0]; break; case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: fnode_conn->ipv6_flow_label = fnode_param->value[0]; break; case ISCSI_FLASHNODE_NAME: rc = iscsi_switch_str_param(&fnode_sess->targetname, (char *)fnode_param->value); break; case ISCSI_FLASHNODE_TPGT: fnode_sess->tpgt = *(uint16_t *)fnode_param->value; break; case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: memcpy(fnode_conn->link_local_ipv6_addr, fnode_param->value, IPv6_ADDR_LEN); break; case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: fnode_sess->discovery_parent_idx = *(uint16_t *)fnode_param->value; break; case ISCSI_FLASHNODE_TCP_XMIT_WSF: fnode_conn->tcp_xmit_wsf = *(uint8_t *)fnode_param->value; break; case ISCSI_FLASHNODE_TCP_RECV_WSF: fnode_conn->tcp_recv_wsf = *(uint8_t *)fnode_param->value; break; case ISCSI_FLASHNODE_STATSN: fnode_conn->statsn = *(uint32_t *)fnode_param->value; break; case ISCSI_FLASHNODE_EXP_STATSN: fnode_conn->exp_statsn = *(uint32_t *)fnode_param->value; break; case ISCSI_FLASHNODE_CHAP_OUT_IDX: chap_out_idx = *(uint16_t *)fnode_param->value; if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, chap_tbl.secret, chap_out_idx)) { fnode_sess->chap_out_idx = chap_out_idx; /* Enable chap auth if chap index is valid */ fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; } break; default: ql4_printk(KERN_ERR, ha, "%s: No such sysfs attribute\n", __func__); rc = -ENOSYS; goto exit_set_param; } } rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); exit_set_param: return rc; } /** * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry * @fnode_sess: pointer to session attrs of flash ddb entry * * This invalidates the flash ddb entry at the given index **/ static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); uint32_t dev_db_start_offset; uint32_t dev_db_end_offset; struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; uint16_t *ddb_cookie = NULL; size_t ddb_size = 0; void *pddb = NULL; int target_id; int rc = 0; if (fnode_sess->is_boot_target) { rc = -EPERM; DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Deletion of boot target entry is not permitted.\n", __func__)); goto exit_ddb_del; } if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) goto sysfs_ddb_del; if (is_qla40XX(ha)) { dev_db_start_offset = FLASH_OFFSET_DB_INFO; dev_db_end_offset = FLASH_OFFSET_DB_END; dev_db_start_offset += (fnode_sess->target_id * sizeof(*fw_ddb_entry)); ddb_size = sizeof(*fw_ddb_entry); } else { dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_ddb << 2); /* flt_ddb_size is DDB table size for both ports * so divide it by 2 to calculate the offset for second port */ if (ha->port_num == 1) dev_db_start_offset += (ha->hw.flt_ddb_size / 2); dev_db_end_offset = dev_db_start_offset + (ha->hw.flt_ddb_size / 2); dev_db_start_offset += (fnode_sess->target_id * sizeof(*fw_ddb_entry)); dev_db_start_offset += offsetof(struct dev_db_entry, cookie); ddb_size = sizeof(*ddb_cookie); } DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", __func__, dev_db_start_offset, dev_db_end_offset)); if (dev_db_start_offset > dev_db_end_offset) { rc = -EIO; DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", __func__, fnode_sess->target_id)); goto exit_ddb_del; } pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, &fw_ddb_entry_dma, GFP_KERNEL); if (!pddb) { rc = -ENOMEM; DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__)); goto exit_ddb_del; } if (is_qla40XX(ha)) { fw_ddb_entry = pddb; memset(fw_ddb_entry, 0, ddb_size); ddb_cookie = &fw_ddb_entry->cookie; } else { ddb_cookie = pddb; } /* invalidate the cookie */ *ddb_cookie = 0xFFEE; qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, ddb_size, FLASH_OPT_RMW_COMMIT); sysfs_ddb_del: target_id = fnode_sess->target_id; iscsi_destroy_flashnode_sess(fnode_sess); ql4_printk(KERN_INFO, ha, "%s: session and conn entries for flashnode %u of host %lu deleted\n", __func__, target_id, ha->host_no); exit_ddb_del: if (pddb) dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, fw_ddb_entry_dma); return rc; } /** * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs * @ha: pointer to adapter structure * * Export the firmware DDB for all send targets and normal targets to sysfs. **/ int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) { struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; uint16_t max_ddbs; uint16_t idx = 0; int ret = QLA_SUCCESS; fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__)); return -ENOMEM; } max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : MAX_DEV_DB_ENTRIES; for (idx = 0; idx < max_ddbs; idx++) { if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, idx)) continue; ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); if (ret) { ret = -EIO; break; } } dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); return ret; } static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) { iscsi_destroy_all_flashnode(ha->host); } /** * qla4xxx_build_ddb_list - Build ddb list and setup sessions * @ha: pointer to adapter structure * @is_reset: Is this init path or reset path * * Create a list of sendtargets (st) from firmware DDBs, issue send targets * using connection open, then create the list of normal targets (nt) * from firmware DDBs. Based on the list of nt setup session and connection * objects. **/ void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) { uint16_t tmo = 0; struct list_head list_st, list_nt; struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; unsigned long wtime; if (!test_bit(AF_LINK_UP, &ha->flags)) { set_bit(AF_BUILD_DDB_LIST, &ha->flags); ha->is_reset = is_reset; return; } INIT_LIST_HEAD(&list_st); INIT_LIST_HEAD(&list_nt); qla4xxx_build_st_list(ha, &list_st); /* Before issuing conn open mbox, ensure all IPs states are configured * Note, conn open fails if IPs are not configured */ qla4xxx_wait_for_ip_configuration(ha); /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); } /* Wait to ensure all sendtargets are done for min 12 sec wait */ tmo = ((ha->def_timeout > LOGIN_TOV) && (ha->def_timeout < LOGIN_TOV * 10) ? ha->def_timeout : LOGIN_TOV); DEBUG2(ql4_printk(KERN_INFO, ha, "Default time to wait for build ddb %d\n", tmo)); wtime = jiffies + (HZ * tmo); do { if (list_empty(&list_st)) break; qla4xxx_remove_failed_ddb(ha, &list_st); schedule_timeout_uninterruptible(HZ / 10); } while (time_after(wtime, jiffies)); qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); qla4xxx_free_ddb_list(&list_st); qla4xxx_free_ddb_list(&list_nt); qla4xxx_free_ddb_index(ha); } /** * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login * response. * @ha: pointer to adapter structure * * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be * set in DDB and we will wait for login response of boot targets during * probe. **/ static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) { struct ddb_entry *ddb_entry; struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; unsigned long wtime; uint32_t ddb_state; int max_ddbs, idx, ret; max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : MAX_DEV_DB_ENTRIES; fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__); goto exit_login_resp; } wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); for (idx = 0; idx < max_ddbs; idx++) { ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); if (ddb_entry == NULL) continue; if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB index [%d]\n", __func__, ddb_entry->fw_ddb_index)); do { ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, fw_ddb_entry_dma, NULL, NULL, &ddb_state, NULL, NULL, NULL); if (ret == QLA_ERROR) goto exit_login_resp; if ((ddb_state == DDB_DS_SESSION_ACTIVE) || (ddb_state == DDB_DS_SESSION_FAILED)) break; schedule_timeout_uninterruptible(HZ); } while ((time_after(wtime, jiffies))); if (!time_after(wtime, jiffies)) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Login response wait timer expired\n", __func__)); goto exit_login_resp; } } } exit_login_resp: if (fw_ddb_entry) dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); } /** * qla4xxx_probe_adapter - callback function to probe HBA * @pdev: pointer to pci_dev structure * @pci_device_id: pointer to pci_device entry * * This routine will probe for Qlogic 4xxx iSCSI host adapters. * It returns zero if successful. It also initializes all data necessary for * the driver. **/ static int qla4xxx_probe_adapter(struct pci_dev *pdev, const struct pci_device_id *ent) { int ret = -ENODEV, status; struct Scsi_Host *host; struct scsi_qla_host *ha; uint8_t init_retry_count = 0; char buf[34]; struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; uint32_t dev_state; if (pci_enable_device(pdev)) return -1; host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); if (host == NULL) { printk(KERN_WARNING "qla4xxx: Couldn't allocate host from scsi layer!\n"); goto probe_disable_device; } /* Clear our data area */ ha = to_qla_host(host); memset(ha, 0, sizeof(*ha)); /* Save the information from PCI BIOS. */ ha->pdev = pdev; ha->host = host; ha->host_no = host->host_no; ha->func_num = PCI_FUNC(ha->pdev->devfn); pci_enable_pcie_error_reporting(pdev); /* Setup Runtime configurable options */ if (is_qla8022(ha)) { ha->isp_ops = &qla4_82xx_isp_ops; ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; ha->qdr_sn_window = -1; ha->ddr_mn_window = -1; ha->curr_window = 255; nx_legacy_intr = &legacy_intr[ha->func_num]; ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg; ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; } else if (is_qla8032(ha) || is_qla8042(ha)) { ha->isp_ops = &qla4_83xx_isp_ops; ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; } else { ha->isp_ops = &qla4xxx_isp_ops; } if (is_qla80XX(ha)) { rwlock_init(&ha->hw_lock); ha->pf_bit = ha->func_num << 16; /* Set EEH reset type to fundamental if required by hba */ pdev->needs_freset = 1; } /* Configure PCI I/O space. */ ret = ha->isp_ops->iospace_config(ha); if (ret) goto probe_failed_ioconfig; ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", pdev->device, pdev->irq, ha->reg); qla4xxx_config_dma_addressing(ha); /* Initialize lists and spinlocks. */ INIT_LIST_HEAD(&ha->free_srb_q); mutex_init(&ha->mbox_sem); mutex_init(&ha->chap_sem); init_completion(&ha->mbx_intr_comp); init_completion(&ha->disable_acb_comp); init_completion(&ha->idc_comp); init_completion(&ha->link_up_comp); spin_lock_init(&ha->hardware_lock); spin_lock_init(&ha->work_lock); /* Initialize work list */ INIT_LIST_HEAD(&ha->work_list); /* Allocate dma buffers */ if (qla4xxx_mem_alloc(ha)) { ql4_printk(KERN_WARNING, ha, "[ERROR] Failed to allocate memory for adapter\n"); ret = -ENOMEM; goto probe_failed; } host->cmd_per_lun = 3; host->max_channel = 0; host->max_lun = MAX_LUNS - 1; host->max_id = MAX_TARGETS; host->max_cmd_len = IOCB_MAX_CDB_LEN; host->can_queue = MAX_SRBS ; host->transportt = qla4xxx_scsi_transport; pci_set_drvdata(pdev, ha); ret = scsi_add_host(host, &pdev->dev); if (ret) goto probe_failed; if (is_qla80XX(ha)) qla4_8xxx_get_flash_info(ha); if (is_qla8032(ha) || is_qla8042(ha)) { qla4_83xx_read_reset_template(ha); /* * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. * If DONRESET_BIT0 is set, drivers should not set dev_state * to NEED_RESET. But if NEED_RESET is set, drivers should * should honor the reset. */ if (ql4xdontresethba == 1) qla4_83xx_set_idc_dontreset(ha); } /* * Initialize the Host adapter request/response queues and * firmware * NOTE: interrupts enabled upon successful completion */ status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); /* Dont retry adapter initialization if IRQ allocation failed */ if (is_qla80XX(ha) && (status == QLA_ERROR)) goto skip_retry_init; while ((!test_bit(AF_ONLINE, &ha->flags)) && init_retry_count++ < MAX_INIT_RETRIES) { if (is_qla80XX(ha)) { ha->isp_ops->idc_lock(ha); dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); ha->isp_ops->idc_unlock(ha); if (dev_state == QLA8XXX_DEV_FAILED) { ql4_printk(KERN_WARNING, ha, "%s: don't retry " "initialize adapter. H/W is in failed state\n", __func__); break; } } DEBUG2(printk("scsi: %s: retrying adapter initialization " "(%d)\n", __func__, init_retry_count)); if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) continue; status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); if (is_qla80XX(ha) && (status == QLA_ERROR)) { if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) goto skip_retry_init; } } skip_retry_init: if (!test_bit(AF_ONLINE, &ha->flags)) { ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); if ((is_qla8022(ha) && ql4xdontresethba) || ((is_qla8032(ha) || is_qla8042(ha)) && qla4_83xx_idc_dontreset(ha))) { /* Put the device in failed state. */ DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); ha->isp_ops->idc_lock(ha); qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED); ha->isp_ops->idc_unlock(ha); } ret = -ENODEV; goto remove_host; } /* Startup the kernel thread for this host adapter. */ DEBUG2(printk("scsi: %s: Starting kernel thread for " "qla4xxx_dpc\n", __func__)); sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); ha->dpc_thread = create_singlethread_workqueue(buf); if (!ha->dpc_thread) { ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); ret = -ENODEV; goto remove_host; } INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, ha->host_no); if (!ha->task_wq) { ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); ret = -ENODEV; goto remove_host; } /* * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc * (which is called indirectly by qla4xxx_initialize_adapter), * so that irqs will be registered after crbinit but before * mbx_intr_enable. */ if (is_qla40XX(ha)) { ret = qla4xxx_request_irqs(ha); if (ret) { ql4_printk(KERN_WARNING, ha, "Failed to reserve " "interrupt %d already in use.\n", pdev->irq); goto remove_host; } } pci_save_state(ha->pdev); ha->isp_ops->enable_intrs(ha); /* Start timer thread. */ qla4xxx_start_timer(ha, 1); set_bit(AF_INIT_DONE, &ha->flags); qla4_8xxx_alloc_sysfs_attr(ha); printk(KERN_INFO " QLogic iSCSI HBA Driver version: %s\n" " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, ha->fw_info.fw_patch, ha->fw_info.fw_build); /* Set the driver version */ if (is_qla80XX(ha)) qla4_8xxx_set_param(ha, SET_DRVR_VERSION); if (qla4xxx_setup_boot_info(ha)) ql4_printk(KERN_ERR, ha, "%s: No iSCSI boot target configured\n", __func__); set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags); /* Perform the build ddb list and login to each */ qla4xxx_build_ddb_list(ha, INIT_ADAPTER); iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); qla4xxx_wait_login_resp_boot_tgt(ha); qla4xxx_create_chap_list(ha); qla4xxx_create_ifaces(ha); return 0; remove_host: scsi_remove_host(ha->host); probe_failed: qla4xxx_free_adapter(ha); probe_failed_ioconfig: pci_disable_pcie_error_reporting(pdev); scsi_host_put(ha->host); probe_disable_device: pci_disable_device(pdev); return ret; } /** * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize * @ha: pointer to adapter structure * * Mark the other ISP-4xxx port to indicate that the driver is being removed, * so that the other port will not re-initialize while in the process of * removing the ha due to driver unload or hba hotplug. **/ static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) { struct scsi_qla_host *other_ha = NULL; struct pci_dev *other_pdev = NULL; int fn = ISP4XXX_PCI_FN_2; /*iscsi function numbers for ISP4xxx is 1 and 3*/ if (PCI_FUNC(ha->pdev->devfn) & BIT_1) fn = ISP4XXX_PCI_FN_1; other_pdev = pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), fn)); /* Get other_ha if other_pdev is valid and state is enable*/ if (other_pdev) { if (atomic_read(&other_pdev->enable_cnt)) { other_ha = pci_get_drvdata(other_pdev); if (other_ha) { set_bit(AF_HA_REMOVAL, &other_ha->flags); DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " "Prevent %s reinit\n", __func__, dev_name(&other_ha->pdev->dev))); } } pci_dev_put(other_pdev); } } static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry) { struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; unsigned long wtime; uint32_t ddb_state; int options; int status; options = LOGOUT_OPTION_CLOSE_SESSION; if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); goto clear_ddb; } fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__); goto clear_ddb; } wtime = jiffies + (HZ * LOGOUT_TOV); do { status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, fw_ddb_entry_dma, NULL, NULL, &ddb_state, NULL, NULL, NULL); if (status == QLA_ERROR) goto free_ddb; if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || (ddb_state == DDB_DS_SESSION_FAILED)) goto free_ddb; schedule_timeout_uninterruptible(HZ); } while ((time_after(wtime, jiffies))); free_ddb: dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, fw_ddb_entry_dma); clear_ddb: qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); } static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) { struct ddb_entry *ddb_entry; int idx; for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); if ((ddb_entry != NULL) && (ddb_entry->ddb_type == FLASH_DDB)) { qla4xxx_destroy_ddb(ha, ddb_entry); /* * we have decremented the reference count of the driver * when we setup the session to have the driver unload * to be seamless without actually destroying the * session **/ try_module_get(qla4xxx_iscsi_transport.owner); iscsi_destroy_endpoint(ddb_entry->conn->ep); qla4xxx_free_ddb(ha, ddb_entry); iscsi_session_teardown(ddb_entry->sess); } } } /** * qla4xxx_remove_adapter - callback function to remove adapter. * @pci_dev: PCI device pointer **/ static void qla4xxx_remove_adapter(struct pci_dev *pdev) { struct scsi_qla_host *ha; /* * If the PCI device is disabled then it means probe_adapter had * failed and resources already cleaned up on probe_adapter exit. */ if (!pci_is_enabled(pdev)) return; ha = pci_get_drvdata(pdev); if (is_qla40XX(ha)) qla4xxx_prevent_other_port_reinit(ha); /* destroy iface from sysfs */ qla4xxx_destroy_ifaces(ha); if ((!ql4xdisablesysfsboot) && ha->boot_kset) iscsi_boot_destroy_kset(ha->boot_kset); qla4xxx_destroy_fw_ddb_session(ha); qla4_8xxx_free_sysfs_attr(ha); qla4xxx_sysfs_ddb_remove(ha); scsi_remove_host(ha->host); qla4xxx_free_adapter(ha); scsi_host_put(ha->host); pci_disable_pcie_error_reporting(pdev); pci_disable_device(pdev); } /** * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. * @ha: HA context */ static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) { /* Update our PCI device dma_mask for full 64 bit mask */ if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) { dev_dbg(&ha->pdev->dev, "Failed to set 64 bit PCI consistent mask; " "using 32 bit.\n"); dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32)); } } static int qla4xxx_slave_alloc(struct scsi_device *sdev) { struct iscsi_cls_session *cls_sess; struct iscsi_session *sess; struct ddb_entry *ddb; int queue_depth = QL4_DEF_QDEPTH; cls_sess = starget_to_session(sdev->sdev_target); sess = cls_sess->dd_data; ddb = sess->dd_data; sdev->hostdata = ddb; if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) queue_depth = ql4xmaxqdepth; scsi_change_queue_depth(sdev, queue_depth); return 0; } /** * qla4xxx_del_from_active_array - returns an active srb * @ha: Pointer to host adapter structure. * @index: index into the active_array * * This routine removes and returns the srb at the specified index **/ struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, uint32_t index) { struct srb *srb = NULL; struct scsi_cmnd *cmd = NULL; cmd = scsi_host_find_tag(ha->host, index); if (!cmd) return srb; srb = (struct srb *)CMD_SP(cmd); if (!srb) return srb; /* update counters */ if (srb->flags & SRB_DMA_VALID) { ha->iocb_cnt -= srb->iocb_cnt; if (srb->cmd) srb->cmd->host_scribble = (unsigned char *)(unsigned long) MAX_SRBS; } return srb; } /** * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware * @ha: Pointer to host adapter structure. * @cmd: Scsi Command to wait on. * * This routine waits for the command to be returned by the Firmware * for some max time. **/ static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, struct scsi_cmnd *cmd) { int done = 0; struct srb *rp; uint32_t max_wait_time = EH_WAIT_CMD_TOV; int ret = SUCCESS; /* Dont wait on command if PCI error is being handled * by PCI AER driver */ if (unlikely(pci_channel_offline(ha->pdev)) || (test_bit(AF_EEH_BUSY, &ha->flags))) { ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", ha->host_no, __func__); return ret; } do { /* Checking to see if its returned to OS */ rp = (struct srb *) CMD_SP(cmd); if (rp == NULL) { done++; break; } msleep(2000); } while (max_wait_time--); return done; } /** * qla4xxx_wait_for_hba_online - waits for HBA to come online * @ha: Pointer to host adapter structure **/ static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) { unsigned long wait_online; wait_online = jiffies + (HBA_ONLINE_TOV * HZ); while (time_before(jiffies, wait_online)) { if (adapter_up(ha)) return QLA_SUCCESS; msleep(2000); } return QLA_ERROR; } /** * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. * @ha: pointer to HBA * @t: target id * @l: lun id * * This function waits for all outstanding commands to a lun to complete. It * returns 0 if all pending commands are returned and 1 otherwise. **/ static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, struct scsi_target *stgt, struct scsi_device *sdev) { int cnt; int status = 0; struct scsi_cmnd *cmd; /* * Waiting for all commands for the designated target or dev * in the active array */ for (cnt = 0; cnt < ha->host->can_queue; cnt++) { cmd = scsi_host_find_tag(ha->host, cnt); if (cmd && stgt == scsi_target(cmd->device) && (!sdev || sdev == cmd->device)) { if (!qla4xxx_eh_wait_on_command(ha, cmd)) { status++; break; } } } return status; } /** * qla4xxx_eh_abort - callback for abort task. * @cmd: Pointer to Linux's SCSI command structure * * This routine is called by the Linux OS to abort the specified * command. **/ static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) { struct scsi_qla_host *ha = to_qla_host(cmd->device->host); unsigned int id = cmd->device->id; uint64_t lun = cmd->device->lun; unsigned long flags; struct srb *srb = NULL; int ret = SUCCESS; int wait = 0; int rval; ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n", ha->host_no, id, lun, cmd, cmd->cmnd[0]); rval = qla4xxx_isp_check_reg(ha); if (rval != QLA_SUCCESS) { ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); return FAILED; } spin_lock_irqsave(&ha->hardware_lock, flags); srb = (struct srb *) CMD_SP(cmd); if (!srb) { spin_unlock_irqrestore(&ha->hardware_lock, flags); ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n", ha->host_no, id, lun); return SUCCESS; } kref_get(&srb->srb_ref); spin_unlock_irqrestore(&ha->hardware_lock, flags); if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n", ha->host_no, id, lun)); ret = FAILED; } else { DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n", ha->host_no, id, lun)); wait = 1; } kref_put(&srb->srb_ref, qla4xxx_srb_compl); /* Wait for command to complete */ if (wait) { if (!qla4xxx_eh_wait_on_command(ha, cmd)) { DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n", ha->host_no, id, lun)); ret = FAILED; } } ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command - %s\n", ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); return ret; } /** * qla4xxx_eh_device_reset - callback for target reset. * @cmd: Pointer to Linux's SCSI command structure * * This routine is called by the Linux OS to reset all luns on the * specified target. **/ static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) { struct scsi_qla_host *ha = to_qla_host(cmd->device->host); struct ddb_entry *ddb_entry = cmd->device->hostdata; int ret = FAILED, stat; int rval; if (!ddb_entry) return ret; ret = iscsi_block_scsi_eh(cmd); if (ret) return ret; ret = FAILED; ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no, cmd->device->channel, cmd->device->id, cmd->device->lun); DEBUG2(printk(KERN_INFO "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, ha->dpc_flags, cmd->result, cmd->allowed)); rval = qla4xxx_isp_check_reg(ha); if (rval != QLA_SUCCESS) { ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); return FAILED; } /* FIXME: wait for hba to go online */ stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); if (stat != QLA_SUCCESS) { ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); goto eh_dev_reset_done; } if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), cmd->device)) { ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED - waiting for " "commands.\n"); goto eh_dev_reset_done; } /* Send marker. */ if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, MM_LUN_RESET) != QLA_SUCCESS) goto eh_dev_reset_done; ql4_printk(KERN_INFO, ha, "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n", ha->host_no, cmd->device->channel, cmd->device->id, cmd->device->lun); ret = SUCCESS; eh_dev_reset_done: return ret; } /** * qla4xxx_eh_target_reset - callback for target reset. * @cmd: Pointer to Linux's SCSI command structure * * This routine is called by the Linux OS to reset the target. **/ static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) { struct scsi_qla_host *ha = to_qla_host(cmd->device->host); struct ddb_entry *ddb_entry = cmd->device->hostdata; int stat, ret; int rval; if (!ddb_entry) return FAILED; ret = iscsi_block_scsi_eh(cmd); if (ret) return ret; starget_printk(KERN_INFO, scsi_target(cmd->device), "WARM TARGET RESET ISSUED.\n"); DEBUG2(printk(KERN_INFO "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, ha->dpc_flags, cmd->result, cmd->allowed)); rval = qla4xxx_isp_check_reg(ha); if (rval != QLA_SUCCESS) { ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); return FAILED; } stat = qla4xxx_reset_target(ha, ddb_entry); if (stat != QLA_SUCCESS) { starget_printk(KERN_INFO, scsi_target(cmd->device), "WARM TARGET RESET FAILED.\n"); return FAILED; } if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), NULL)) { starget_printk(KERN_INFO, scsi_target(cmd->device), "WARM TARGET DEVICE RESET FAILED - " "waiting for commands.\n"); return FAILED; } /* Send marker. */ if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, MM_TGT_WARM_RESET) != QLA_SUCCESS) { starget_printk(KERN_INFO, scsi_target(cmd->device), "WARM TARGET DEVICE RESET FAILED - " "marker iocb failed.\n"); return FAILED; } starget_printk(KERN_INFO, scsi_target(cmd->device), "WARM TARGET RESET SUCCEEDED.\n"); return SUCCESS; } /** * qla4xxx_is_eh_active - check if error handler is running * @shost: Pointer to SCSI Host struct * * This routine finds that if reset host is called in EH * scenario or from some application like sg_reset **/ static int qla4xxx_is_eh_active(struct Scsi_Host *shost) { if (shost->shost_state == SHOST_RECOVERY) return 1; return 0; } /** * qla4xxx_eh_host_reset - kernel callback * @cmd: Pointer to Linux's SCSI command structure * * This routine is invoked by the Linux kernel to perform fatal error * recovery on the specified adapter. **/ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) { int return_status = FAILED; struct scsi_qla_host *ha; int rval; ha = to_qla_host(cmd->device->host); rval = qla4xxx_isp_check_reg(ha); if (rval != QLA_SUCCESS) { ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); return FAILED; } if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) qla4_83xx_set_idc_dontreset(ha); /* * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other * protocol drivers, we should not set device_state to NEED_RESET */ if (ql4xdontresethba || ((is_qla8032(ha) || is_qla8042(ha)) && qla4_83xx_idc_dontreset(ha))) { DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", ha->host_no, __func__)); /* Clear outstanding srb in queues */ if (qla4xxx_is_eh_active(cmd->device->host)) qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); return FAILED; } ql4_printk(KERN_INFO, ha, "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no, cmd->device->channel, cmd->device->id, cmd->device->lun); if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " "DEAD.\n", ha->host_no, cmd->device->channel, __func__)); return FAILED; } if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { if (is_qla80XX(ha)) set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); else set_bit(DPC_RESET_HA, &ha->dpc_flags); } if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) return_status = SUCCESS; ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", return_status == FAILED ? "FAILED" : "SUCCEEDED"); return return_status; } static int qla4xxx_context_reset(struct scsi_qla_host *ha) { uint32_t mbox_cmd[MBOX_REG_COUNT]; uint32_t mbox_sts[MBOX_REG_COUNT]; struct addr_ctrl_blk_def *acb = NULL; uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); int rval = QLA_SUCCESS; dma_addr_t acb_dma; acb = dma_alloc_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), &acb_dma, GFP_KERNEL); if (!acb) { ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", __func__); rval = -ENOMEM; goto exit_port_reset; } memset(acb, 0, acb_len); rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); if (rval != QLA_SUCCESS) { rval = -EIO; goto exit_free_acb; } rval = qla4xxx_disable_acb(ha); if (rval != QLA_SUCCESS) { rval = -EIO; goto exit_free_acb; } wait_for_completion_timeout(&ha->disable_acb_comp, DISABLE_ACB_TOV * HZ); rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); if (rval != QLA_SUCCESS) { rval = -EIO; goto exit_free_acb; } exit_free_acb: dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), acb, acb_dma); exit_port_reset: DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); return rval; } static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) { struct scsi_qla_host *ha = to_qla_host(shost); int rval = QLA_SUCCESS; uint32_t idc_ctrl; if (ql4xdontresethba) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", __func__)); rval = -EPERM; goto exit_host_reset; } if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) goto recover_adapter; switch (reset_type) { case SCSI_ADAPTER_RESET: set_bit(DPC_RESET_HA, &ha->dpc_flags); break; case SCSI_FIRMWARE_RESET: if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { if (is_qla80XX(ha)) /* set firmware context reset */ set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); else { rval = qla4xxx_context_reset(ha); goto exit_host_reset; } } break; } recover_adapter: /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if * reset is issued by application */ if ((is_qla8032(ha) || is_qla8042(ha)) && test_bit(DPC_RESET_HA, &ha->dpc_flags)) { idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, (idc_ctrl | GRACEFUL_RESET_BIT1)); } rval = qla4xxx_recover_adapter(ha); if (rval != QLA_SUCCESS) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", __func__)); rval = -EIO; } exit_host_reset: return rval; } /* PCI AER driver recovers from all correctable errors w/o * driver intervention. For uncorrectable errors PCI AER * driver calls the following device driver's callbacks * * - Fatal Errors - link_reset * - Non-Fatal Errors - driver's error_detected() which * returns CAN_RECOVER, NEED_RESET or DISCONNECT. * * PCI AER driver calls * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled() * returns RECOVERED or NEED_RESET if fw_hung * NEED_RESET - driver's slot_reset() * DISCONNECT - device is dead & cannot recover * RECOVERED - driver's resume() */ static pci_ers_result_t qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) { struct scsi_qla_host *ha = pci_get_drvdata(pdev); ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", ha->host_no, __func__, state); if (!is_aer_supported(ha)) return PCI_ERS_RESULT_NONE; switch (state) { case pci_channel_io_normal: clear_bit(AF_EEH_BUSY, &ha->flags); return PCI_ERS_RESULT_CAN_RECOVER; case pci_channel_io_frozen: set_bit(AF_EEH_BUSY, &ha->flags); qla4xxx_mailbox_premature_completion(ha); qla4xxx_free_irqs(ha); pci_disable_device(pdev); /* Return back all IOs */ qla4xxx_abort_active_cmds(ha, DID_RESET << 16); return PCI_ERS_RESULT_NEED_RESET; case pci_channel_io_perm_failure: set_bit(AF_EEH_BUSY, &ha->flags); set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); return PCI_ERS_RESULT_DISCONNECT; } return PCI_ERS_RESULT_NEED_RESET; } /** * qla4xxx_pci_mmio_enabled() gets called if * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER * and read/write to the device still works. **/ static pci_ers_result_t qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) { struct scsi_qla_host *ha = pci_get_drvdata(pdev); if (!is_aer_supported(ha)) return PCI_ERS_RESULT_NONE; return PCI_ERS_RESULT_RECOVERED; } static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) { uint32_t rval = QLA_ERROR; int fn; struct pci_dev *other_pdev = NULL; ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); if (test_bit(AF_ONLINE, &ha->flags)) { clear_bit(AF_ONLINE, &ha->flags); clear_bit(AF_LINK_UP, &ha->flags); iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); } fn = PCI_FUNC(ha->pdev->devfn); if (is_qla8022(ha)) { while (fn > 0) { fn--; ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", ha->host_no, __func__, fn); /* Get the pci device given the domain, bus, * slot/function number */ other_pdev = pci_get_domain_bus_and_slot( pci_domain_nr(ha->pdev->bus), ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), fn)); if (!other_pdev) continue; if (atomic_read(&other_pdev->enable_cnt)) { ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", ha->host_no, __func__, fn); pci_dev_put(other_pdev); break; } pci_dev_put(other_pdev); } } else { /* this case is meant for ISP83xx/ISP84xx only */ if (qla4_83xx_can_perform_reset(ha)) { /* reset fn as iSCSI is going to perform the reset */ fn = 0; } } /* The first function on the card, the reset owner will * start & initialize the firmware. The other functions * on the card will reset the firmware context */ if (!fn) { ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " "0x%x is the owner\n", ha->host_no, __func__, ha->pdev->devfn); ha->isp_ops->idc_lock(ha); qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_COLD); ha->isp_ops->idc_unlock(ha); rval = qla4_8xxx_update_idc_reg(ha); if (rval == QLA_ERROR) { ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", ha->host_no, __func__); ha->isp_ops->idc_lock(ha); qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED); ha->isp_ops->idc_unlock(ha); goto exit_error_recovery; } clear_bit(AF_FW_RECOVERY, &ha->flags); rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); if (rval != QLA_SUCCESS) { ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " "FAILED\n", ha->host_no, __func__); qla4xxx_free_irqs(ha); ha->isp_ops->idc_lock(ha); qla4_8xxx_clear_drv_active(ha); qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED); ha->isp_ops->idc_unlock(ha); } else { ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " "READY\n", ha->host_no, __func__); ha->isp_ops->idc_lock(ha); qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_READY); /* Clear driver state register */ qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); qla4_8xxx_set_drv_active(ha); ha->isp_ops->idc_unlock(ha); ha->isp_ops->enable_intrs(ha); } } else { ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " "the reset owner\n", ha->host_no, __func__, ha->pdev->devfn); if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == QLA8XXX_DEV_READY)) { clear_bit(AF_FW_RECOVERY, &ha->flags); rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); if (rval == QLA_SUCCESS) ha->isp_ops->enable_intrs(ha); else qla4xxx_free_irqs(ha); ha->isp_ops->idc_lock(ha); qla4_8xxx_set_drv_active(ha); ha->isp_ops->idc_unlock(ha); } } exit_error_recovery: clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); return rval; } static pci_ers_result_t qla4xxx_pci_slot_reset(struct pci_dev *pdev) { pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; struct scsi_qla_host *ha = pci_get_drvdata(pdev); int rc; ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", ha->host_no, __func__); if (!is_aer_supported(ha)) return PCI_ERS_RESULT_NONE; /* Restore the saved state of PCIe device - * BAR registers, PCI Config space, PCIX, MSI, * IOV states */ pci_restore_state(pdev); /* pci_restore_state() clears the saved_state flag of the device * save restored state which resets saved_state flag */ pci_save_state(pdev); /* Initialize device or resume if in suspended state */ rc = pci_enable_device(pdev); if (rc) { ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " "device after reset\n", ha->host_no, __func__); goto exit_slot_reset; } ha->isp_ops->disable_intrs(ha); if (is_qla80XX(ha)) { if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { ret = PCI_ERS_RESULT_RECOVERED; goto exit_slot_reset; } else goto exit_slot_reset; } exit_slot_reset: ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" "device after reset\n", ha->host_no, __func__, ret); return ret; } static void qla4xxx_pci_resume(struct pci_dev *pdev) { struct scsi_qla_host *ha = pci_get_drvdata(pdev); int ret; ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", ha->host_no, __func__); ret = qla4xxx_wait_for_hba_online(ha); if (ret != QLA_SUCCESS) { ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " "resume I/O from slot/link_reset\n", ha->host_no, __func__); } clear_bit(AF_EEH_BUSY, &ha->flags); } static const struct pci_error_handlers qla4xxx_err_handler = { .error_detected = qla4xxx_pci_error_detected, .mmio_enabled = qla4xxx_pci_mmio_enabled, .slot_reset = qla4xxx_pci_slot_reset, .resume = qla4xxx_pci_resume, }; static struct pci_device_id qla4xxx_pci_tbl[] = { { .vendor = PCI_VENDOR_ID_QLOGIC, .device = PCI_DEVICE_ID_QLOGIC_ISP4010, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, }, { .vendor = PCI_VENDOR_ID_QLOGIC, .device = PCI_DEVICE_ID_QLOGIC_ISP4022, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, }, { .vendor = PCI_VENDOR_ID_QLOGIC, .device = PCI_DEVICE_ID_QLOGIC_ISP4032, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, }, { .vendor = PCI_VENDOR_ID_QLOGIC, .device = PCI_DEVICE_ID_QLOGIC_ISP8022, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, }, { .vendor = PCI_VENDOR_ID_QLOGIC, .device = PCI_DEVICE_ID_QLOGIC_ISP8324, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, }, { .vendor = PCI_VENDOR_ID_QLOGIC, .device = PCI_DEVICE_ID_QLOGIC_ISP8042, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, }, {0, 0}, }; MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); static struct pci_driver qla4xxx_pci_driver = { .name = DRIVER_NAME, .id_table = qla4xxx_pci_tbl, .probe = qla4xxx_probe_adapter, .remove = qla4xxx_remove_adapter, .err_handler = &qla4xxx_err_handler, }; static int __init qla4xxx_module_init(void) { int ret; if (ql4xqfulltracking) qla4xxx_driver_template.track_queue_depth = 1; /* Allocate cache for SRBs. */ srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, SLAB_HWCACHE_ALIGN, NULL); if (srb_cachep == NULL) { printk(KERN_ERR "%s: Unable to allocate SRB cache..." "Failing load!\n", DRIVER_NAME); ret = -ENOMEM; goto no_srp_cache; } /* Derive version string. */ strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); if (ql4xextended_error_logging) strcat(qla4xxx_version_str, "-debug"); qla4xxx_scsi_transport = iscsi_register_transport(&qla4xxx_iscsi_transport); if (!qla4xxx_scsi_transport){ ret = -ENODEV; goto release_srb_cache; } ret = pci_register_driver(&qla4xxx_pci_driver); if (ret) goto unregister_transport; printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); return 0; unregister_transport: iscsi_unregister_transport(&qla4xxx_iscsi_transport); release_srb_cache: kmem_cache_destroy(srb_cachep); no_srp_cache: return ret; } static void __exit qla4xxx_module_exit(void) { pci_unregister_driver(&qla4xxx_pci_driver); iscsi_unregister_transport(&qla4xxx_iscsi_transport); kmem_cache_destroy(srb_cachep); } module_init(qla4xxx_module_init); module_exit(qla4xxx_module_exit); MODULE_AUTHOR("QLogic Corporation"); MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
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