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path: root/drivers/scsi/qla4xxx/ql4_os.c
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Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_os.c')
-rw-r--r--drivers/scsi/qla4xxx/ql4_os.c9960
1 files changed, 9960 insertions, 0 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
new file mode 100644
index 000000000..3f2f9734e
--- /dev/null
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -0,0 +1,9960 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * QLogic iSCSI HBA Driver
+ * Copyright (c) 2003-2013 QLogic Corporation
+ */
+#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 const uint32_t qla4_82xx_reg_tbl[] = {
+ QLA82XX_PEG_HALT_STATUS1,
+ QLA82XX_PEG_HALT_STATUS2,
+ QLA82XX_PEG_ALIVE_COUNTER,
+ QLA82XX_CRB_DRV_ACTIVE,
+ QLA82XX_CRB_DEV_STATE,
+ QLA82XX_CRB_DRV_STATE,
+ QLA82XX_CRB_DRV_SCRATCH,
+ QLA82XX_CRB_DEV_PART_INFO,
+ QLA82XX_CRB_DRV_IDC_VERSION,
+ QLA82XX_FW_VERSION_MAJOR,
+ QLA82XX_FW_VERSION_MINOR,
+ QLA82XX_FW_VERSION_SUB,
+ CRB_CMDPEG_STATE,
+ CRB_TEMP_STATE,
+};
+
+static const uint32_t qla4_83xx_reg_tbl[] = {
+ QLA83XX_PEG_HALT_STATUS1,
+ QLA83XX_PEG_HALT_STATUS2,
+ QLA83XX_PEG_ALIVE_COUNTER,
+ QLA83XX_CRB_DRV_ACTIVE,
+ QLA83XX_CRB_DEV_STATE,
+ QLA83XX_CRB_DRV_STATE,
+ QLA83XX_CRB_DRV_SCRATCH,
+ QLA83XX_CRB_DEV_PART_INFO1,
+ QLA83XX_CRB_IDC_VER_MAJOR,
+ QLA83XX_FW_VER_MAJOR,
+ QLA83XX_FW_VER_MINOR,
+ QLA83XX_FW_VER_SUB,
+ QLA83XX_CMDPEG_STATE,
+ QLA83XX_ASIC_TEMP,
+};
+
+static struct scsi_host_template qla4xxx_driver_template = {
+ .module = THIS_MODULE,
+ .name = DRIVER_NAME,
+ .proc_name = DRIVER_NAME,
+ .queuecommand = qla4xxx_queuecommand,
+ .cmd_size = sizeof(struct qla4xxx_cmd_priv),
+
+ .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_groups = qla4xxx_host_groups,
+ .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,
+ .unbind_conn = iscsi_conn_unbind,
+ .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;
+ }
+
+ 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");
+ 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");
+ goto exit_get_chap;
+ }
+
+ *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
+ if ((*chap_entry)->cookie !=
+ cpu_to_le16(CHAP_VALID_COOKIE)) {
+ *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 !=
+ 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 !=
+ 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;
+ }
+ 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_is_session_online(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 = 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) {
+ if (nla_len(attr) < sizeof(*param_info)) {
+ rc = -EINVAL;
+ goto exit_set_chap;
+ }
+
+ 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, 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;
+ unsigned long flags;
+ enum blk_eh_timer_return ret = BLK_EH_DONE;
+
+ session = starget_to_session(scsi_target(sc->device));
+
+ 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) {
+ if (nla_len(attr) < sizeof(*iface_param)) {
+ rval = -EINVAL;
+ goto exit_init_fw_cb;
+ }
+
+ 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);
+ }
+ }
+ fallthrough;
+ 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;
+ int ret;
+
+ if (!ep) {
+ printk(KERN_ERR "qla4xxx: missing ep.\n");
+ return NULL;
+ }
+
+ 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));
+
+ 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;
+ iscsi_put_endpoint(ep);
+ 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;
+
+ 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 0;
+}
+
+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;
+ qla4xxx_cmd_priv(cmd)->srb = 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;
+ }
+ qla4xxx_cmd_priv(cmd)->srb = 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);
+
+ 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:
+ 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);
+
+ 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);
+
+ 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);
+ }
+
+ 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:
+ 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.
+ * @t: Context to obtain 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 && qla4xxx_cmd_priv(cmd)->srb)
+ 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);
+ queue_work(ddb_entry->sess->workq, &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
+ * @work: Context to obtain pointer to host 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;
+ 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);
+ }
+
+ 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", (char)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", (char)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);
+ goto exit_boot_info;
+ } 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 !=
+ 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 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__));
+ 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:
+ vfree(fw_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:
+ vfree(fw_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-circuiting 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:
+ vfree(flash_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) {
+ if (nla_len(attr) < sizeof(*fnode_param)) {
+ rc = -EINVAL;
+ goto exit_set_param;
+ }
+
+ 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
+ * @ent: 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.
+ * @pdev: 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 = qla4xxx_cmd_priv(cmd)->srb;
+ 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 = qla4xxx_cmd_priv(cmd)->srb;
+ 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
+ * @stgt: pointer to SCSI target
+ * @sdev: pointer to SCSI device
+ *
+ * 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 = qla4xxx_cmd_priv(cmd)->srb;
+ 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, scsi_cmd_to_rq(cmd)->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, scsi_cmd_to_rq(cmd)->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.
+ * @pdev: PCI device pointer
+ **/
+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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 02:51:28 +0000