12 files changed, 300 insertions, 30 deletions

diff --git a/include/scsi/Kbuild b/include/scsi/Kbuild
deleted file mode 100644
index 562ff9d591b8..000000000000
--- a/include/scsi/Kbuild
+++ /dev/null
@@ -1 +0,0 @@
-header-y += fc/
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index 917741bb8e11..fe7f06c86f68 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -63,6 +63,12 @@ enum iscsi_uevent_e {
         ISCSI_UEVENT_PING               = UEVENT_BASE + 22,
         ISCSI_UEVENT_GET_CHAP           = UEVENT_BASE + 23,
         ISCSI_UEVENT_DELETE_CHAP        = UEVENT_BASE + 24,
+        ISCSI_UEVENT_SET_FLASHNODE_PARAMS       = UEVENT_BASE + 25,
+        ISCSI_UEVENT_NEW_FLASHNODE      = UEVENT_BASE + 26,
+        ISCSI_UEVENT_DEL_FLASHNODE      = UEVENT_BASE + 27,
+        ISCSI_UEVENT_LOGIN_FLASHNODE    = UEVENT_BASE + 28,
+        ISCSI_UEVENT_LOGOUT_FLASHNODE   = UEVENT_BASE + 29,
+        ISCSI_UEVENT_LOGOUT_FLASHNODE_SID       = UEVENT_BASE + 30,
 
         /* up events */
         ISCSI_KEVENT_RECV_PDU           = KEVENT_BASE + 1,
@@ -210,6 +216,31 @@ struct iscsi_uevent {
                        uint32_t        host_no;
                        uint16_t        chap_tbl_idx;
                 } delete_chap;
+                struct msg_set_flashnode_param {
+                        uint32_t        host_no;
+                        uint32_t        flashnode_idx;
+                        uint32_t        count;
+                } set_flashnode;
+                struct msg_new_flashnode {
+                        uint32_t        host_no;
+                        uint32_t        len;
+                } new_flashnode;
+                struct msg_del_flashnode {
+                        uint32_t        host_no;
+                        uint32_t        flashnode_idx;
+                } del_flashnode;
+                struct msg_login_flashnode {
+                        uint32_t        host_no;
+                        uint32_t        flashnode_idx;
+                } login_flashnode;
+                struct msg_logout_flashnode {
+                        uint32_t        host_no;
+                        uint32_t        flashnode_idx;
+                } logout_flashnode;
+                struct msg_logout_flashnode_sid {
+                        uint32_t        host_no;
+                        uint32_t        sid;
+                } logout_flashnode_sid;
         } u;
         union {
                 /* messages k -> u */
@@ -267,6 +298,9 @@ struct iscsi_uevent {
                                                    with each ping request */
                         uint32_t        data_size;
                 } ping_comp;
+                struct msg_new_flashnode_ret {
+                        uint32_t        flashnode_idx;
+                } new_flashnode_ret;
         } r;
 } __attribute__ ((aligned (sizeof(uint64_t))));
 
@@ -274,6 +308,7 @@ enum iscsi_param_type {
         ISCSI_PARAM,            /* iscsi_param (session, conn, target, LU) */
         ISCSI_HOST_PARAM,       /* iscsi_host_param */
         ISCSI_NET_PARAM,        /* iscsi_net_param */
+        ISCSI_FLASHNODE_PARAM,  /* iscsi_flashnode_param */
 };
 
 struct iscsi_iface_param_info {
@@ -469,6 +504,88 @@ enum iscsi_host_param {
         ISCSI_HOST_PARAM_MAX,
 };
 
+/* portal type */
+#define PORTAL_TYPE_IPV4        "ipv4"
+#define PORTAL_TYPE_IPV6        "ipv6"
+
+/* iSCSI Flash Target params */
+enum iscsi_flashnode_param {
+        ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6,
+        ISCSI_FLASHNODE_PORTAL_TYPE,
+        ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE,
+        ISCSI_FLASHNODE_DISCOVERY_SESS,
+        ISCSI_FLASHNODE_ENTRY_EN,
+        ISCSI_FLASHNODE_HDR_DGST_EN,
+        ISCSI_FLASHNODE_DATA_DGST_EN,
+        ISCSI_FLASHNODE_IMM_DATA_EN,
+        ISCSI_FLASHNODE_INITIAL_R2T_EN,
+        ISCSI_FLASHNODE_DATASEQ_INORDER,
+        ISCSI_FLASHNODE_PDU_INORDER,
+        ISCSI_FLASHNODE_CHAP_AUTH_EN,
+        ISCSI_FLASHNODE_SNACK_REQ_EN,
+        ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN,
+        ISCSI_FLASHNODE_BIDI_CHAP_EN,
+        /* make authentication for discovery sessions optional */
+        ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL,
+        ISCSI_FLASHNODE_ERL,
+        ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT,
+        ISCSI_FLASHNODE_TCP_NAGLE_DISABLE,
+        ISCSI_FLASHNODE_TCP_WSF_DISABLE,
+        ISCSI_FLASHNODE_TCP_TIMER_SCALE,
+        ISCSI_FLASHNODE_TCP_TIMESTAMP_EN,
+        ISCSI_FLASHNODE_IP_FRAG_DISABLE,
+        ISCSI_FLASHNODE_MAX_RECV_DLENGTH,
+        ISCSI_FLASHNODE_MAX_XMIT_DLENGTH,
+        ISCSI_FLASHNODE_FIRST_BURST,
+        ISCSI_FLASHNODE_DEF_TIME2WAIT,
+        ISCSI_FLASHNODE_DEF_TIME2RETAIN,
+        ISCSI_FLASHNODE_MAX_R2T,
+        ISCSI_FLASHNODE_KEEPALIVE_TMO,
+        ISCSI_FLASHNODE_ISID,
+        ISCSI_FLASHNODE_TSID,
+        ISCSI_FLASHNODE_PORT,
+        ISCSI_FLASHNODE_MAX_BURST,
+        ISCSI_FLASHNODE_DEF_TASKMGMT_TMO,
+        ISCSI_FLASHNODE_IPADDR,
+        ISCSI_FLASHNODE_ALIAS,
+        ISCSI_FLASHNODE_REDIRECT_IPADDR,
+        ISCSI_FLASHNODE_MAX_SEGMENT_SIZE,
+        ISCSI_FLASHNODE_LOCAL_PORT,
+        ISCSI_FLASHNODE_IPV4_TOS,
+        ISCSI_FLASHNODE_IPV6_TC,
+        ISCSI_FLASHNODE_IPV6_FLOW_LABEL,
+        ISCSI_FLASHNODE_NAME,
+        ISCSI_FLASHNODE_TPGT,
+        ISCSI_FLASHNODE_LINK_LOCAL_IPV6,
+        ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX,
+        ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE,
+        ISCSI_FLASHNODE_TCP_XMIT_WSF,
+        ISCSI_FLASHNODE_TCP_RECV_WSF,
+        ISCSI_FLASHNODE_CHAP_IN_IDX,
+        ISCSI_FLASHNODE_CHAP_OUT_IDX,
+        ISCSI_FLASHNODE_USERNAME,
+        ISCSI_FLASHNODE_USERNAME_IN,
+        ISCSI_FLASHNODE_PASSWORD,
+        ISCSI_FLASHNODE_PASSWORD_IN,
+        ISCSI_FLASHNODE_STATSN,
+        ISCSI_FLASHNODE_EXP_STATSN,
+        ISCSI_FLASHNODE_IS_BOOT_TGT,
+
+        ISCSI_FLASHNODE_MAX,
+};
+
+struct iscsi_flashnode_param_info {
+        uint32_t len;           /* Actual length of the param */
+        uint16_t param;         /* iscsi param value */
+        uint8_t value[0];       /* length sized value follows */
+} __packed;
+
+enum iscsi_discovery_parent_type {
+        ISCSI_DISC_PARENT_UNKNOWN       = 0x1,
+        ISCSI_DISC_PARENT_SENDTGT       = 0x2,
+        ISCSI_DISC_PARENT_ISNS          = 0x3,
+};
+
 /* iSCSI port Speed */
 enum iscsi_port_speed {
         ISCSI_PORT_SPEED_UNKNOWN        = 0x1,
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 399162b50a8d..e1379b4e8faf 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -1074,7 +1074,8 @@ void fc_rport_terminate_io(struct fc_rport *);
 /*
  * DISCOVERY LAYER
  *****************************/
-int fc_disc_init(struct fc_lport *);
+void fc_disc_init(struct fc_lport *);
+void fc_disc_config(struct fc_lport *, void *);
 
 static inline struct fc_lport *fc_disc_lport(struct fc_disc *disc)
 {
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 6e33386a3898..09c041e6c35f 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -427,6 +427,7 @@ extern void iscsi_complete_scsi_task(struct iscsi_task *task,
  */
 extern void iscsi_pool_free(struct iscsi_pool *);
 extern int iscsi_pool_init(struct iscsi_pool *, int, void ***, int);
+extern int iscsi_switch_str_param(char **, char *);
 
 /*
  * inline functions to deal with padding.
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index ef937b56f9b5..e2c1e66d58ae 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -118,7 +118,7 @@ struct ex_phy {
 
         enum ex_phy_state phy_state;
 
-        enum sas_dev_type attached_dev_type;
+        enum sas_device_type attached_dev_type;
         enum sas_linkrate linkrate;
 
         u8   attached_sata_host:1;
@@ -195,7 +195,7 @@ enum {
 
 struct domain_device {
         spinlock_t done_lock;
-        enum sas_dev_type dev_type;
+        enum sas_device_type dev_type;
 
         enum sas_linkrate linkrate;
         enum sas_linkrate min_linkrate;
diff --git a/include/scsi/osd_protocol.h b/include/scsi/osd_protocol.h
index a6026da25f3e..25ac6283b9c7 100644
--- a/include/scsi/osd_protocol.h
+++ b/include/scsi/osd_protocol.h
@@ -107,7 +107,7 @@ enum osd_attributes_mode {
  *              int exponent: 04;
  *      }
  */
-typedef __be32 __bitwise osd_cdb_offset;
+typedef __be32 osd_cdb_offset;
 
 enum {
         OSD_OFFSET_UNUSED = 0xFFFFFFFF,
diff --git a/include/scsi/sas.h b/include/scsi/sas.h
index be3eb0bf1ac0..0d2607d12387 100644
--- a/include/scsi/sas.h
+++ b/include/scsi/sas.h
@@ -90,16 +90,18 @@ enum sas_oob_mode {
 };
 
 /* See sas_discover.c if you plan on changing these */
-enum sas_dev_type {
-        NO_DEVICE   = 0,          /* protocol */
-        SAS_END_DEV = 1,          /* protocol */
-        EDGE_DEV    = 2,          /* protocol */
-        FANOUT_DEV  = 3,          /* protocol */
-        SAS_HA      = 4,
-        SATA_DEV    = 5,
-        SATA_PM     = 7,
-        SATA_PM_PORT= 8,
-        SATA_PENDING  = 9,
+enum sas_device_type {
+        /* these are SAS protocol defined (attached device type field) */
+        SAS_PHY_UNUSED = 0,
+        SAS_END_DEVICE = 1,
+        SAS_EDGE_EXPANDER_DEVICE = 2,
+        SAS_FANOUT_EXPANDER_DEVICE = 3,
+        /* these are internal to libsas */
+        SAS_HA = 4,
+        SAS_SATA_DEV = 5,
+        SAS_SATA_PM = 7,
+        SAS_SATA_PM_PORT = 8,
+        SAS_SATA_PENDING = 9,
 };
 
 enum sas_protocol {
diff --git a/include/scsi/sas_ata.h b/include/scsi/sas_ata.h
index ff71a5654684..00f41aeeecf5 100644
--- a/include/scsi/sas_ata.h
+++ b/include/scsi/sas_ata.h
@@ -32,8 +32,8 @@
 
 static inline int dev_is_sata(struct domain_device *dev)
 {
-        return dev->dev_type == SATA_DEV || dev->dev_type == SATA_PM ||
-               dev->dev_type == SATA_PM_PORT || dev->dev_type == SATA_PENDING;
+        return dev->dev_type == SAS_SATA_DEV || dev->dev_type == SAS_SATA_PM ||
+               dev->dev_type == SAS_SATA_PM_PORT || dev->dev_type == SAS_SATA_PENDING;
 }
 
 int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy);
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index a7f9cba275e9..cc645876d147 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -394,10 +394,18 @@ extern int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
                         int data_direction, void *buffer, unsigned bufflen,
                         unsigned char *sense, int timeout, int retries,
                         int flag, int *resid);
-extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
-                            int data_direction, void *buffer, unsigned bufflen,
-                            struct scsi_sense_hdr *, int timeout, int retries,
-                            int *resid);
+extern int scsi_execute_req_flags(struct scsi_device *sdev,
+        const unsigned char *cmd, int data_direction, void *buffer,
+        unsigned bufflen, struct scsi_sense_hdr *sshdr, int timeout,
+        int retries, int *resid, int flags);
+static inline int scsi_execute_req(struct scsi_device *sdev,
+        const unsigned char *cmd, int data_direction, void *buffer,
+        unsigned bufflen, struct scsi_sense_hdr *sshdr, int timeout,
+        int retries, int *resid)
+{
+        return scsi_execute_req_flags(sdev, cmd, data_direction, buffer,
+                bufflen, sshdr, timeout, retries, resid, 0);
+}
 extern void sdev_disable_disk_events(struct scsi_device *sdev);
 extern void sdev_enable_disk_events(struct scsi_device *sdev);
 
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 2b6956e9853d..755243572219 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -6,6 +6,7 @@
 #include <linux/types.h>
 #include <linux/workqueue.h>
 #include <linux/mutex.h>
+#include <linux/seq_file.h>
 #include <scsi/scsi.h>
 
 struct request_queue;
@@ -340,7 +341,8 @@ struct scsi_host_template {
          *
          * Status: OBSOLETE
          */
-        int (*proc_info)(struct Scsi_Host *, char *, char **, off_t, int, int);
+        int (*show_info)(struct seq_file *, struct Scsi_Host *);
+        int (*write_info)(struct Scsi_Host *, char *, int);
 
         /*
          * This is an optional routine that allows the transport to become
@@ -375,7 +377,7 @@ struct scsi_host_template {
 
         /*
          * Used to store the procfs directory if a driver implements the
-         * proc_info method.
+         * show_info method.
          */
         struct proc_dir_entry *proc_dir;
 
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 53f0b361d668..d0f1602985e7 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -39,6 +39,8 @@ struct iscsi_task;
 struct sockaddr;
 struct iscsi_iface;
 struct bsg_job;
+struct iscsi_bus_flash_session;
+struct iscsi_bus_flash_conn;
 
 /**
  * struct iscsi_transport - iSCSI Transport template
@@ -150,6 +152,19 @@ struct iscsi_transport {
         int (*get_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx,
                          uint32_t *num_entries, char *buf);
         int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx);
+        int (*get_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess,
+                                    int param, char *buf);
+        int (*set_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess,
+                                    struct iscsi_bus_flash_conn *fnode_conn,
+                                    void *data, int len);
+        int (*new_flashnode) (struct Scsi_Host *shost, const char *buf,
+                              int len);
+        int (*del_flashnode) (struct iscsi_bus_flash_session *fnode_sess);
+        int (*login_flashnode) (struct iscsi_bus_flash_session *fnode_sess,
+                                struct iscsi_bus_flash_conn *fnode_conn);
+        int (*logout_flashnode) (struct iscsi_bus_flash_session *fnode_sess,
+                                 struct iscsi_bus_flash_conn *fnode_conn);
+        int (*logout_flashnode_sid) (struct iscsi_cls_session *cls_sess);
 };
 
 /*
@@ -286,6 +301,112 @@ struct iscsi_iface {
 #define iscsi_iface_to_shost(_iface) \
         dev_to_shost(_iface->dev.parent)
 
+
+struct iscsi_bus_flash_conn {
+        struct list_head conn_list;     /* item in connlist */
+        void *dd_data;                  /* LLD private data */
+        struct iscsi_transport *transport;
+        struct device dev;              /* sysfs transport/container device */
+        /* iscsi connection parameters */
+        uint32_t                exp_statsn;
+        uint32_t                statsn;
+        unsigned                max_recv_dlength; /* initiator_max_recv_dsl*/
+        unsigned                max_xmit_dlength; /* target_max_recv_dsl */
+        unsigned                max_segment_size;
+        unsigned                tcp_xmit_wsf;
+        unsigned                tcp_recv_wsf;
+        int                     hdrdgst_en;
+        int                     datadgst_en;
+        int                     port;
+        char                    *ipaddress;
+        char                    *link_local_ipv6_addr;
+        char                    *redirect_ipaddr;
+        uint16_t                keepalive_timeout;
+        uint16_t                local_port;
+        uint8_t                 snack_req_en;
+        /* tcp timestamp negotiation status */
+        uint8_t                 tcp_timestamp_stat;
+        uint8_t                 tcp_nagle_disable;
+        /* tcp window scale factor */
+        uint8_t                 tcp_wsf_disable;
+        uint8_t                 tcp_timer_scale;
+        uint8_t                 tcp_timestamp_en;
+        uint8_t                 ipv4_tos;
+        uint8_t                 ipv6_traffic_class;
+        uint8_t                 ipv6_flow_label;
+        uint8_t                 fragment_disable;
+        /* Link local IPv6 address is assigned by firmware or driver */
+        uint8_t                 is_fw_assigned_ipv6;
+};
+
+#define iscsi_dev_to_flash_conn(_dev) \
+        container_of(_dev, struct iscsi_bus_flash_conn, dev)
+
+#define iscsi_flash_conn_to_flash_session(_conn) \
+        iscsi_dev_to_flash_session(_conn->dev.parent)
+
+#define ISID_SIZE 6
+
+struct iscsi_bus_flash_session {
+        struct list_head sess_list;             /* item in session_list */
+        struct iscsi_transport *transport;
+        unsigned int target_id;
+        int flash_state;        /* persistent or non-persistent */
+        void *dd_data;                          /* LLD private data */
+        struct device dev;      /* sysfs transport/container device */
+        /* iscsi session parameters */
+        unsigned                first_burst;
+        unsigned                max_burst;
+        unsigned short          max_r2t;
+        int                     default_taskmgmt_timeout;
+        int                     initial_r2t_en;
+        int                     imm_data_en;
+        int                     time2wait;
+        int                     time2retain;
+        int                     pdu_inorder_en;
+        int                     dataseq_inorder_en;
+        int                     erl;
+        int                     tpgt;
+        char                    *username;
+        char                    *username_in;
+        char                    *password;
+        char                    *password_in;
+        char                    *targetname;
+        char                    *targetalias;
+        char                    *portal_type;
+        uint16_t                tsid;
+        uint16_t                chap_in_idx;
+        uint16_t                chap_out_idx;
+        /* index of iSCSI discovery session if the entry is
+         * discovered by iSCSI discovery session
+         */
+        uint16_t                discovery_parent_idx;
+        /* indicates if discovery was done through iSNS discovery service
+         * or through sendTarget */
+        uint16_t                discovery_parent_type;
+        /* Firmware auto sendtarget discovery disable */
+        uint8_t                 auto_snd_tgt_disable;
+        uint8_t                 discovery_sess;
+        /* indicates if this flashnode entry is enabled or disabled */
+        uint8_t                 entry_state;
+        uint8_t                 chap_auth_en;
+        /* enables firmware to auto logout the discovery session on discovery
+         * completion
+         */
+        uint8_t                 discovery_logout_en;
+        uint8_t                 bidi_chap_en;
+        /* makes authentication for discovery session optional */
+        uint8_t                 discovery_auth_optional;
+        uint8_t                 isid[ISID_SIZE];
+        uint8_t                 is_boot_target;
+};
+
+#define iscsi_dev_to_flash_session(_dev) \
+        container_of(_dev, struct iscsi_bus_flash_session, dev)
+
+#define iscsi_flash_session_to_shost(_session) \
+        dev_to_shost(_session->dev.parent)
+
 /*
  * session and connection functions that can be used by HW iSCSI LLDs
  */
@@ -330,4 +451,30 @@ extern char *iscsi_get_port_speed_name(struct Scsi_Host *shost);
 extern char *iscsi_get_port_state_name(struct Scsi_Host *shost);
 extern int iscsi_is_session_dev(const struct device *dev);
 
+extern char *iscsi_get_discovery_parent_name(int parent_type);
+extern struct device *
+iscsi_find_flashnode(struct Scsi_Host *shost, void *data,
+                     int (*fn)(struct device *dev, void *data));
+
+extern struct iscsi_bus_flash_session *
+iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index,
+                            struct iscsi_transport *transport, int dd_size);
+
+extern struct iscsi_bus_flash_conn *
+iscsi_create_flashnode_conn(struct Scsi_Host *shost,
+                            struct iscsi_bus_flash_session *fnode_sess,
+                            struct iscsi_transport *transport, int dd_size);
+
+extern void
+iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess);
+
+extern void iscsi_destroy_all_flashnode(struct Scsi_Host *shost);
+extern int iscsi_flashnode_bus_match(struct device *dev,
+                                     struct device_driver *drv);
+extern struct device *
+iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data,
+                          int (*fn)(struct device *dev, void *data));
+extern struct device *
+iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess);
+
 #endif
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
index 9b8e08879cfc..0bd71e2702e3 100644
--- a/include/scsi/scsi_transport_sas.h
+++ b/include/scsi/scsi_transport_sas.h
@@ -10,13 +10,6 @@ struct scsi_transport_template;
 struct sas_rphy;
 struct request;
 
-enum sas_device_type {
-        SAS_PHY_UNUSED = 0,
-        SAS_END_DEVICE = 1,
-        SAS_EDGE_EXPANDER_DEVICE = 2,
-        SAS_FANOUT_EXPANDER_DEVICE = 3,
-};
-
 static inline int sas_protocol_ata(enum sas_protocol proto)
 {
         return ((proto & SAS_PROTOCOL_SATA) ||