| /* |
| * 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); |
| } |
| } |
| /* 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); |
| if (!ep) |
| return -EINVAL; |
| 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); |
