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path: root/drivers/s390/scsi/zfcp_def.h
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Diffstat (limited to 'drivers/s390/scsi/zfcp_def.h')
-rw-r--r--drivers/s390/scsi/zfcp_def.h179
1 files changed, 48 insertions, 131 deletions
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 67f45fc62f5..73eb41580f2 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -39,29 +39,6 @@
/********************* GENERAL DEFINES *********************************/
-/**
- * zfcp_sg_to_address - determine kernel address from struct scatterlist
- * @list: struct scatterlist
- * Return: kernel address
- */
-static inline void *
-zfcp_sg_to_address(struct scatterlist *list)
-{
- return sg_virt(list);
-}
-
-/**
- * zfcp_address_to_sg - set up struct scatterlist from kernel address
- * @address: kernel address
- * @list: struct scatterlist
- * @size: buffer size
- */
-static inline void
-zfcp_address_to_sg(void *address, struct scatterlist *list, unsigned int size)
-{
- sg_set_buf(list, address, size);
-}
-
#define REQUEST_LIST_SIZE 128
/********************* SCSI SPECIFIC DEFINES *********************************/
@@ -101,11 +78,6 @@ zfcp_address_to_sg(void *address, struct scatterlist *list, unsigned int size)
/*************** FIBRE CHANNEL PROTOCOL SPECIFIC DEFINES ********************/
-typedef unsigned long long wwn_t;
-typedef unsigned long long fcp_lun_t;
-/* data length field may be at variable position in FCP-2 FCP_CMND IU */
-typedef unsigned int fcp_dl_t;
-
/* timeout for name-server lookup (in seconds) */
#define ZFCP_NS_GID_PN_TIMEOUT 10
@@ -129,7 +101,7 @@ typedef unsigned int fcp_dl_t;
/* FCP(-2) FCP_CMND IU */
struct fcp_cmnd_iu {
- fcp_lun_t fcp_lun; /* FCP logical unit number */
+ u64 fcp_lun; /* FCP logical unit number */
u8 crn; /* command reference number */
u8 reserved0:5; /* reserved */
u8 task_attribute:3; /* task attribute */
@@ -204,7 +176,7 @@ struct fcp_rscn_element {
struct fcp_logo {
u32 command;
u32 nport_did;
- wwn_t nport_wwpn;
+ u64 nport_wwpn;
} __attribute__((packed));
/*
@@ -218,13 +190,6 @@ struct fcp_logo {
#define ZFCP_LS_RSCN 0x61
#define ZFCP_LS_RNID 0x78
-struct zfcp_ls_rjt_par {
- u8 action;
- u8 reason_code;
- u8 reason_expl;
- u8 vendor_unique;
-} __attribute__ ((packed));
-
struct zfcp_ls_adisc {
u8 code;
u8 field[3];
@@ -234,20 +199,6 @@ struct zfcp_ls_adisc {
u32 nport_id;
} __attribute__ ((packed));
-struct zfcp_ls_adisc_acc {
- u8 code;
- u8 field[3];
- u32 hard_nport_id;
- u64 wwpn;
- u64 wwnn;
- u32 nport_id;
-} __attribute__ ((packed));
-
-struct zfcp_rc_entry {
- u8 code;
- const char *description;
-};
-
/*
* FC-GS-2 stuff
*/
@@ -281,9 +232,7 @@ struct zfcp_rc_entry {
#define ZFCP_STATUS_COMMON_RUNNING 0x40000000
#define ZFCP_STATUS_COMMON_ERP_FAILED 0x20000000
#define ZFCP_STATUS_COMMON_UNBLOCKED 0x10000000
-#define ZFCP_STATUS_COMMON_OPENING 0x08000000
#define ZFCP_STATUS_COMMON_OPEN 0x04000000
-#define ZFCP_STATUS_COMMON_CLOSING 0x02000000
#define ZFCP_STATUS_COMMON_ERP_INUSE 0x01000000
#define ZFCP_STATUS_COMMON_ACCESS_DENIED 0x00800000
#define ZFCP_STATUS_COMMON_ACCESS_BOXED 0x00400000
@@ -291,16 +240,15 @@ struct zfcp_rc_entry {
/* adapter status */
#define ZFCP_STATUS_ADAPTER_QDIOUP 0x00000002
-#define ZFCP_STATUS_ADAPTER_REGISTERED 0x00000004
#define ZFCP_STATUS_ADAPTER_XCONFIG_OK 0x00000008
#define ZFCP_STATUS_ADAPTER_HOST_CON_INIT 0x00000010
#define ZFCP_STATUS_ADAPTER_ERP_THREAD_UP 0x00000020
#define ZFCP_STATUS_ADAPTER_ERP_THREAD_KILL 0x00000080
#define ZFCP_STATUS_ADAPTER_ERP_PENDING 0x00000100
#define ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED 0x00000200
-#define ZFCP_STATUS_ADAPTER_XPORT_OK 0x00000800
/* FC-PH/FC-GS well-known address identifiers for generic services */
+#define ZFCP_DID_WKA 0xFFFFF0
#define ZFCP_DID_MANAGEMENT_SERVICE 0xFFFFFA
#define ZFCP_DID_TIME_SERVICE 0xFFFFFB
#define ZFCP_DID_DIRECTORY_SERVICE 0xFFFFFC
@@ -312,29 +260,27 @@ struct zfcp_rc_entry {
#define ZFCP_STATUS_PORT_DID_DID 0x00000002
#define ZFCP_STATUS_PORT_PHYS_CLOSING 0x00000004
#define ZFCP_STATUS_PORT_NO_WWPN 0x00000008
-#define ZFCP_STATUS_PORT_NO_SCSI_ID 0x00000010
#define ZFCP_STATUS_PORT_INVALID_WWPN 0x00000020
-/* for ports with well known addresses */
-#define ZFCP_STATUS_PORT_WKA \
- (ZFCP_STATUS_PORT_NO_WWPN | \
- ZFCP_STATUS_PORT_NO_SCSI_ID)
+/* well known address (WKA) port status*/
+enum zfcp_wka_status {
+ ZFCP_WKA_PORT_OFFLINE,
+ ZFCP_WKA_PORT_CLOSING,
+ ZFCP_WKA_PORT_OPENING,
+ ZFCP_WKA_PORT_ONLINE,
+};
/* logical unit status */
-#define ZFCP_STATUS_UNIT_TEMPORARY 0x00000002
#define ZFCP_STATUS_UNIT_SHARED 0x00000004
#define ZFCP_STATUS_UNIT_READONLY 0x00000008
#define ZFCP_STATUS_UNIT_REGISTERED 0x00000010
#define ZFCP_STATUS_UNIT_SCSI_WORK_PENDING 0x00000020
/* FSF request status (this does not have a common part) */
-#define ZFCP_STATUS_FSFREQ_NOT_INIT 0x00000000
-#define ZFCP_STATUS_FSFREQ_POOL 0x00000001
#define ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT 0x00000002
#define ZFCP_STATUS_FSFREQ_COMPLETED 0x00000004
#define ZFCP_STATUS_FSFREQ_ERROR 0x00000008
#define ZFCP_STATUS_FSFREQ_CLEANUP 0x00000010
-#define ZFCP_STATUS_FSFREQ_ABORTING 0x00000020
#define ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED 0x00000040
#define ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED 0x00000080
#define ZFCP_STATUS_FSFREQ_ABORTED 0x00000100
@@ -379,7 +325,7 @@ struct ct_hdr {
* a port name is required */
struct ct_iu_gid_pn_req {
struct ct_hdr header;
- wwn_t wwpn;
+ u64 wwpn;
} __attribute__ ((packed));
/* FS_ACC IU and data unit for GID_PN nameserver request */
@@ -388,11 +334,9 @@ struct ct_iu_gid_pn_resp {
u32 d_id;
} __attribute__ ((packed));
-typedef void (*zfcp_send_ct_handler_t)(unsigned long);
-
/**
* struct zfcp_send_ct - used to pass parameters to function zfcp_fsf_send_ct
- * @port: port where the request is sent to
+ * @wka_port: port where the request is sent to
* @req: scatter-gather list for request
* @resp: scatter-gather list for response
* @req_count: number of elements in request scatter-gather list
@@ -404,12 +348,12 @@ typedef void (*zfcp_send_ct_handler_t)(unsigned long);
* @status: used to pass error status to calling function
*/
struct zfcp_send_ct {
- struct zfcp_port *port;
+ struct zfcp_wka_port *wka_port;
struct scatterlist *req;
struct scatterlist *resp;
unsigned int req_count;
unsigned int resp_count;
- zfcp_send_ct_handler_t handler;
+ void (*handler)(unsigned long);
unsigned long handler_data;
int timeout;
struct completion *completion;
@@ -426,8 +370,6 @@ struct zfcp_gid_pn_data {
struct zfcp_port *port;
};
-typedef void (*zfcp_send_els_handler_t)(unsigned long);
-
/**
* struct zfcp_send_els - used to pass parameters to function zfcp_fsf_send_els
* @adapter: adapter where request is sent from
@@ -451,22 +393,28 @@ struct zfcp_send_els {
struct scatterlist *resp;
unsigned int req_count;
unsigned int resp_count;
- zfcp_send_els_handler_t handler;
+ void (*handler)(unsigned long);
unsigned long handler_data;
struct completion *completion;
int ls_code;
int status;
};
+struct zfcp_wka_port {
+ struct zfcp_adapter *adapter;
+ wait_queue_head_t completion_wq;
+ enum zfcp_wka_status status;
+ atomic_t refcount;
+ u32 d_id;
+ u32 handle;
+ struct mutex mutex;
+ struct delayed_work work;
+};
+
struct zfcp_qdio_queue {
- struct qdio_buffer *sbal[QDIO_MAX_BUFFERS_PER_Q]; /* SBALs */
- u8 first; /* index of next free bfr
- in queue (free_count>0) */
- atomic_t count; /* number of free buffers
- in queue */
- spinlock_t lock; /* lock for operations on queue */
- int pci_batch; /* SBALs since PCI indication
- was last set */
+ struct qdio_buffer *sbal[QDIO_MAX_BUFFERS_PER_Q];
+ u8 first; /* index of next free bfr in queue */
+ atomic_t count; /* number of free buffers in queue */
};
struct zfcp_erp_action {
@@ -475,7 +423,7 @@ struct zfcp_erp_action {
struct zfcp_adapter *adapter; /* device which should be recovered */
struct zfcp_port *port;
struct zfcp_unit *unit;
- volatile u32 status; /* recovery status */
+ u32 status; /* recovery status */
u32 step; /* active step of this erp action */
struct zfcp_fsf_req *fsf_req; /* fsf request currently pending
for this action */
@@ -506,8 +454,8 @@ struct zfcp_adapter {
atomic_t refcount; /* reference count */
wait_queue_head_t remove_wq; /* can be used to wait for
refcount drop to zero */
- wwn_t peer_wwnn; /* P2P peer WWNN */
- wwn_t peer_wwpn; /* P2P peer WWPN */
+ u64 peer_wwnn; /* P2P peer WWNN */
+ u64 peer_wwpn; /* P2P peer WWPN */
u32 peer_d_id; /* P2P peer D_ID */
struct ccw_device *ccw_device; /* S/390 ccw device */
u32 hydra_version; /* Hydra version */
@@ -518,13 +466,13 @@ struct zfcp_adapter {
u16 timer_ticks; /* time int for a tick */
struct Scsi_Host *scsi_host; /* Pointer to mid-layer */
struct list_head port_list_head; /* remote port list */
- struct list_head port_remove_lh; /* head of ports to be
- removed */
- u32 ports; /* number of remote ports */
unsigned long req_no; /* unique FSF req number */
struct list_head *req_list; /* list of pending reqs */
spinlock_t req_list_lock; /* request list lock */
struct zfcp_qdio_queue req_q; /* request queue */
+ spinlock_t req_q_lock; /* for operations on queue */
+ int req_q_pci_batch; /* SBALs since PCI indication
+ was last set */
u32 fsf_req_seq_no; /* FSF cmnd seq number */
wait_queue_head_t request_wq; /* can be used to wait for
more avaliable SBALs */
@@ -548,7 +496,7 @@ struct zfcp_adapter {
actions */
u32 erp_low_mem_count; /* nr of erp actions waiting
for memory */
- struct zfcp_port *nameserver_port; /* adapter's nameserver */
+ struct zfcp_wka_port nsp; /* adapter's nameserver */
debug_info_t *rec_dbf;
debug_info_t *hba_dbf;
debug_info_t *san_dbf; /* debug feature areas */
@@ -563,11 +511,11 @@ struct zfcp_adapter {
struct zfcp_scsi_dbf_record scsi_dbf_buf;
struct zfcp_adapter_mempool pool; /* Adapter memory pools */
struct qdio_initialize qdio_init_data; /* for qdio_establish */
- struct device generic_services; /* directory for WKA ports */
struct fc_host_statistics *fc_stats;
struct fsf_qtcb_bottom_port *stats_reset_data;
unsigned long stats_reset;
struct work_struct scan_work;
+ atomic_t qdio_outb_full; /* queue full incidents */
};
struct zfcp_port {
@@ -579,18 +527,16 @@ struct zfcp_port {
refcount drop to zero */
struct zfcp_adapter *adapter; /* adapter used to access port */
struct list_head unit_list_head; /* head of logical unit list */
- struct list_head unit_remove_lh; /* head of luns to be removed
- list */
- u32 units; /* # of logical units in list */
atomic_t status; /* status of this remote port */
- wwn_t wwnn; /* WWNN if known */
- wwn_t wwpn; /* WWPN */
+ u64 wwnn; /* WWNN if known */
+ u64 wwpn; /* WWPN */
u32 d_id; /* D_ID */
u32 handle; /* handle assigned by FSF */
struct zfcp_erp_action erp_action; /* pending error recovery */
atomic_t erp_counter;
u32 maxframe_size;
u32 supported_classes;
+ struct work_struct gid_pn_work;
};
struct zfcp_unit {
@@ -601,8 +547,7 @@ struct zfcp_unit {
refcount drop to zero */
struct zfcp_port *port; /* remote port of unit */
atomic_t status; /* status of this logical unit */
- unsigned int scsi_lun; /* own SCSI LUN */
- fcp_lun_t fcp_lun; /* own FCP_LUN */
+ u64 fcp_lun; /* own FCP_LUN */
u32 handle; /* handle assigned by FSF */
struct scsi_device *device; /* scsi device struct pointer */
struct zfcp_erp_action erp_action; /* pending error recovery */
@@ -625,7 +570,7 @@ struct zfcp_fsf_req {
u8 sbal_response; /* SBAL used in interrupt */
wait_queue_head_t completion_wq; /* can be used by a routine
to wait for completion */
- volatile u32 status; /* status of this request */
+ u32 status; /* status of this request */
u32 fsf_command; /* FSF Command copy */
struct fsf_qtcb *qtcb; /* address of associated QTCB */
u32 seq_no; /* Sequence number of request */
@@ -644,11 +589,7 @@ struct zfcp_fsf_req {
struct zfcp_data {
struct scsi_host_template scsi_host_template;
struct scsi_transport_template *scsi_transport_template;
- atomic_t status; /* Module status flags */
struct list_head adapter_list_head; /* head of adapter list */
- struct list_head adapter_remove_lh; /* head of adapters to be
- removed */
- u32 adapters; /* # of adapters in list */
rwlock_t config_lock; /* serialises changes
to adapter/port/unit
lists */
@@ -656,11 +597,12 @@ struct zfcp_data {
changes */
atomic_t loglevel; /* current loglevel */
char init_busid[BUS_ID_SIZE];
- wwn_t init_wwpn;
- fcp_lun_t init_fcp_lun;
- struct kmem_cache *fsf_req_qtcb_cache;
- struct kmem_cache *sr_buffer_cache;
- struct kmem_cache *gid_pn_cache;
+ u64 init_wwpn;
+ u64 init_fcp_lun;
+ struct kmem_cache *fsf_req_qtcb_cache;
+ struct kmem_cache *sr_buffer_cache;
+ struct kmem_cache *gid_pn_cache;
+ struct workqueue_struct *work_queue;
};
/* struct used by memory pools for fsf_requests */
@@ -677,14 +619,7 @@ struct zfcp_fsf_req_qtcb {
#define ZFCP_SET 0x00000100
#define ZFCP_CLEAR 0x00000200
-#ifndef atomic_test_mask
-#define atomic_test_mask(mask, target) \
- ((atomic_read(target) & mask) == mask)
-#endif
-
#define zfcp_get_busid_by_adapter(adapter) (adapter->ccw_device->dev.bus_id)
-#define zfcp_get_busid_by_port(port) (zfcp_get_busid_by_adapter(port->adapter))
-#define zfcp_get_busid_by_unit(unit) (zfcp_get_busid_by_port(unit->port))
/*
* Helper functions for request ID management.
@@ -745,12 +680,6 @@ zfcp_unit_put(struct zfcp_unit *unit)
}
static inline void
-zfcp_unit_wait(struct zfcp_unit *unit)
-{
- wait_event(unit->remove_wq, atomic_read(&unit->refcount) == 0);
-}
-
-static inline void
zfcp_port_get(struct zfcp_port *port)
{
atomic_inc(&port->refcount);
@@ -764,12 +693,6 @@ zfcp_port_put(struct zfcp_port *port)
}
static inline void
-zfcp_port_wait(struct zfcp_port *port)
-{
- wait_event(port->remove_wq, atomic_read(&port->refcount) == 0);
-}
-
-static inline void
zfcp_adapter_get(struct zfcp_adapter *adapter)
{
atomic_inc(&adapter->refcount);
@@ -782,10 +705,4 @@ zfcp_adapter_put(struct zfcp_adapter *adapter)
wake_up(&adapter->remove_wq);
}
-static inline void
-zfcp_adapter_wait(struct zfcp_adapter *adapter)
-{
- wait_event(adapter->remove_wq, atomic_read(&adapter->refcount) == 0);
-}
-
#endif /* ZFCP_DEF_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 11:05:05 +0000