diff options
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/iscsi_if.h | 6 | ||||
| -rw-r--r-- | include/scsi/scsi.h | 6 | ||||
| -rw-r--r-- | include/scsi/scsi_cmnd.h | 1 | ||||
| -rw-r--r-- | include/scsi/scsi_host.h | 3 | ||||
| -rw-r--r-- | include/scsi/scsi_transport.h | 7 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_fc.h | 4 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_iscsi.h | 75 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_spi.h | 2 |
8 files changed, 88 insertions, 16 deletions
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index be1bc792ab1..3e5cb5ab2d3 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -168,6 +168,12 @@ typedef uint64_t iscsi_connh_t; /* iSCSI Data-Path connection handle */ #define iscsi_ptr(_handle) ((void*)(unsigned long)_handle) #define iscsi_handle(_ptr) ((uint64_t)(unsigned long)_ptr) +#define hostdata_session(_hostdata) (iscsi_ptr(*(unsigned long *)_hostdata)) + +/** + * iscsi_hostdata - get LLD hostdata from scsi_host + * @_hostdata: pointer to scsi host's hostdata + **/ #define iscsi_hostdata(_hostdata) ((void*)_hostdata + sizeof(unsigned long)) /* diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 6cb1e2788d8..c60b8ff2f5e 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -32,6 +32,12 @@ extern const unsigned char scsi_command_size[8]; extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE]; /* + * Special value for scanning to specify scanning or rescanning of all + * possible channels, (target) ids, or luns on a given shost. + */ +#define SCAN_WILD_CARD ~0 + +/* * SCSI opcodes */ diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index 41cfc29be89..7529f4388bb 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -151,6 +151,5 @@ extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t); extern void scsi_put_command(struct scsi_cmnd *); extern void scsi_io_completion(struct scsi_cmnd *, unsigned int, unsigned int); extern void scsi_finish_command(struct scsi_cmnd *cmd); -extern void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd); #endif /* _SCSI_SCSI_CMND_H */ diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 230bc55c0bf..467274a764d 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -5,6 +5,7 @@ #include <linux/list.h> #include <linux/types.h> #include <linux/workqueue.h> +#include <linux/mutex.h> struct block_device; struct completion; @@ -469,7 +470,7 @@ struct Scsi_Host { spinlock_t default_lock; spinlock_t *host_lock; - struct semaphore scan_mutex;/* serialize scanning activity */ + struct mutex scan_mutex;/* serialize scanning activity */ struct list_head eh_cmd_q; struct task_struct * ehandler; /* Error recovery thread. */ diff --git a/include/scsi/scsi_transport.h b/include/scsi/scsi_transport.h index f6e0bb484c6..e7b1054adf8 100644 --- a/include/scsi/scsi_transport.h +++ b/include/scsi/scsi_transport.h @@ -30,12 +30,9 @@ struct scsi_transport_template { struct transport_container device_attrs; /* - * If set, call target_parent prior to allocating a scsi_target, - * so we get the appropriate parent for the target. This function - * is required for transports like FC and iSCSI that do not put the - * scsi_target under scsi_host. + * If set, called from sysfs and legacy procfs rescanning code. */ - struct device *(*target_parent)(struct Scsi_Host *, int, uint); + int (*user_scan)(struct Scsi_Host *, uint, uint, uint); /* The size of the specific transport attribute structure (a * space of this size will be left at the end of the diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 394f14a5b7c..cf3fec8be1e 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -303,6 +303,7 @@ struct fc_host_attrs { /* Fixed Attributes */ u64 node_name; u64 port_name; + u64 permanent_port_name; u32 supported_classes; u8 supported_fc4s[FC_FC4_LIST_SIZE]; char symbolic_name[FC_SYMBOLIC_NAME_SIZE]; @@ -338,6 +339,8 @@ struct fc_host_attrs { (((struct fc_host_attrs *)(x)->shost_data)->node_name) #define fc_host_port_name(x) \ (((struct fc_host_attrs *)(x)->shost_data)->port_name) +#define fc_host_permanent_port_name(x) \ + (((struct fc_host_attrs *)(x)->shost_data)->permanent_port_name) #define fc_host_supported_classes(x) \ (((struct fc_host_attrs *)(x)->shost_data)->supported_classes) #define fc_host_supported_fc4s(x) \ @@ -426,6 +429,7 @@ struct fc_function_template { /* host fixed attributes */ unsigned long show_host_node_name:1; unsigned long show_host_port_name:1; + unsigned long show_host_permanent_port_name:1; unsigned long show_host_supported_classes:1; unsigned long show_host_supported_fc4s:1; unsigned long show_host_symbolic_name:1; diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index f25041c386e..16602a547a6 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -23,8 +23,14 @@ #ifndef SCSI_TRANSPORT_ISCSI_H #define SCSI_TRANSPORT_ISCSI_H +#include <linux/device.h> #include <scsi/iscsi_if.h> +struct scsi_transport_template; +struct Scsi_Host; +struct mempool_zone; +struct iscsi_cls_conn; + /** * struct iscsi_transport - iSCSI Transport template * @@ -48,23 +54,31 @@ struct iscsi_transport { char *name; unsigned int caps; struct scsi_host_template *host_template; + /* LLD session/scsi_host data size */ int hostdata_size; + /* LLD iscsi_host data size */ + int ihostdata_size; + /* LLD connection data size */ + int conndata_size; int max_lun; unsigned int max_conn; unsigned int max_cmd_len; - iscsi_sessionh_t (*create_session) (uint32_t initial_cmdsn, - struct Scsi_Host *shost); - void (*destroy_session) (iscsi_sessionh_t session); - iscsi_connh_t (*create_conn) (iscsi_sessionh_t session, uint32_t cid); + struct Scsi_Host *(*create_session) (struct scsi_transport_template *t, + uint32_t initial_cmdsn); + void (*destroy_session) (struct Scsi_Host *shost); + struct iscsi_cls_conn *(*create_conn) (struct Scsi_Host *shost, + uint32_t cid); int (*bind_conn) (iscsi_sessionh_t session, iscsi_connh_t conn, uint32_t transport_fd, int is_leading); int (*start_conn) (iscsi_connh_t conn); void (*stop_conn) (iscsi_connh_t conn, int flag); - void (*destroy_conn) (iscsi_connh_t conn); + void (*destroy_conn) (struct iscsi_cls_conn *conn); int (*set_param) (iscsi_connh_t conn, enum iscsi_param param, uint32_t value); - int (*get_param) (iscsi_connh_t conn, enum iscsi_param param, - uint32_t *value); + int (*get_conn_param) (void *conndata, enum iscsi_param param, + uint32_t *value); + int (*get_session_param) (struct Scsi_Host *shost, + enum iscsi_param param, uint32_t *value); int (*send_pdu) (iscsi_connh_t conn, struct iscsi_hdr *hdr, char *data, uint32_t data_size); void (*get_stats) (iscsi_connh_t conn, struct iscsi_stats *stats); @@ -73,7 +87,7 @@ struct iscsi_transport { /* * transport registration upcalls */ -extern int iscsi_register_transport(struct iscsi_transport *tt); +extern struct scsi_transport_template *iscsi_register_transport(struct iscsi_transport *tt); extern int iscsi_unregister_transport(struct iscsi_transport *tt); /* @@ -83,4 +97,49 @@ extern void iscsi_conn_error(iscsi_connh_t conn, enum iscsi_err error); extern int iscsi_recv_pdu(iscsi_connh_t conn, struct iscsi_hdr *hdr, char *data, uint32_t data_size); +struct iscsi_cls_conn { + struct list_head conn_list; /* item in connlist */ + void *dd_data; /* LLD private data */ + struct iscsi_transport *transport; + iscsi_connh_t connh; + int active; /* must be accessed with the connlock */ + struct device dev; /* sysfs transport/container device */ + struct mempool_zone *z_error; + struct mempool_zone *z_pdu; + struct list_head freequeue; +}; + +#define iscsi_dev_to_conn(_dev) \ + container_of(_dev, struct iscsi_cls_conn, dev) + +struct iscsi_cls_session { + struct list_head list; /* item in session_list */ + struct iscsi_transport *transport; + struct device dev; /* sysfs transport/container device */ +}; + +#define iscsi_dev_to_session(_dev) \ + container_of(_dev, struct iscsi_cls_session, dev) + +#define iscsi_session_to_shost(_session) \ + dev_to_shost(_session->dev.parent) + +/* + * session and connection functions that can be used by HW iSCSI LLDs + */ +extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost, + struct iscsi_transport *t); +extern int iscsi_destroy_session(struct iscsi_cls_session *session); +extern struct iscsi_cls_conn *iscsi_create_conn(struct iscsi_cls_session *sess, + uint32_t cid); +extern int iscsi_destroy_conn(struct iscsi_cls_conn *conn); + +/* + * session functions used by software iscsi + */ +extern struct Scsi_Host * +iscsi_transport_create_session(struct scsi_transport_template *scsit, + struct iscsi_transport *transport); +extern int iscsi_transport_destroy_session(struct Scsi_Host *shost); + #endif diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h index 54a89611e9c..2b5930ba69e 100644 --- a/include/scsi/scsi_transport_spi.h +++ b/include/scsi/scsi_transport_spi.h @@ -54,7 +54,7 @@ struct spi_transport_attrs { unsigned int support_qas; /* supports quick arbitration and selection */ /* Private Fields */ unsigned int dv_pending:1; /* Internal flag */ - struct semaphore dv_sem; /* semaphore to serialise dv */ + struct mutex dv_mutex; /* semaphore to serialise dv */ }; enum spi_signal_type { |