diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_def.h')
| -rw-r--r-- | drivers/s390/scsi/zfcp_def.h | 183 |
1 files changed, 105 insertions, 78 deletions
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 49d0532bca1..7da2fad8f51 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -37,10 +37,8 @@ #include <asm/debug.h> #include <asm/ebcdic.h> #include <asm/sysinfo.h> -#include "zfcp_dbf.h" #include "zfcp_fsf.h" - /********************* GENERAL DEFINES *********************************/ #define REQUEST_LIST_SIZE 128 @@ -75,9 +73,6 @@ /*************** FIBRE CHANNEL PROTOCOL SPECIFIC DEFINES ********************/ -/* timeout for name-server lookup (in seconds) */ -#define ZFCP_NS_GID_PN_TIMEOUT 10 - /* task attribute values in FCP-2 FCP_CMND IU */ #define SIMPLE_Q 0 #define HEAD_OF_Q 1 @@ -224,8 +219,6 @@ struct zfcp_ls_adisc { #define ZFCP_STATUS_ADAPTER_QDIOUP 0x00000002 #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 @@ -234,6 +227,7 @@ struct zfcp_ls_adisc { /* remote port status */ #define ZFCP_STATUS_PORT_PHYS_OPEN 0x00000001 +#define ZFCP_STATUS_PORT_LINK_TEST 0x00000002 /* well known address (WKA) port status*/ enum zfcp_wka_status { @@ -249,7 +243,6 @@ enum zfcp_wka_status { /* FSF request status (this does not have a common part) */ #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_ABORTSUCCEEDED 0x00000040 @@ -266,12 +259,14 @@ struct zfcp_fsf_req; /* holds various memory pools of an adapter */ struct zfcp_adapter_mempool { - mempool_t *fsf_req_erp; - mempool_t *fsf_req_scsi; - mempool_t *fsf_req_abort; - mempool_t *fsf_req_status_read; - mempool_t *data_status_read; - mempool_t *data_gid_pn; + mempool_t *erp_req; + mempool_t *gid_pn_req; + mempool_t *scsi_req; + mempool_t *scsi_abort; + mempool_t *status_read_req; + mempool_t *status_read_data; + mempool_t *gid_pn_data; + mempool_t *qtcb_pool; }; /* @@ -305,6 +300,15 @@ struct ct_iu_gid_pn_resp { u32 d_id; } __attribute__ ((packed)); +struct ct_iu_gpn_ft_req { + struct ct_hdr header; + u8 flags; + u8 domain_id_scope; + u8 area_id_scope; + u8 fc4_type; +} __attribute__ ((packed)); + + /** * struct zfcp_send_ct - used to pass parameters to function zfcp_fsf_send_ct * @wka_port: port where the request is sent to @@ -312,7 +316,6 @@ struct ct_iu_gid_pn_resp { * @resp: scatter-gather list for response * @handler: handler function (called for response to the request) * @handler_data: data passed to handler function - * @timeout: FSF timeout for this request * @completion: completion for synchronization purposes * @status: used to pass error status to calling function */ @@ -322,7 +325,6 @@ struct zfcp_send_ct { struct scatterlist *resp; void (*handler)(unsigned long); unsigned long handler_data; - int timeout; struct completion *completion; int status; }; @@ -420,6 +422,29 @@ struct zfcp_latencies { spinlock_t lock; }; +/** struct zfcp_qdio - basic QDIO data structure + * @resp_q: response queue + * @req_q: request queue + * @stat_lock: lock to protect req_q_util and req_q_time + * @req_q_lock; lock to serialize access to request queue + * @req_q_time: time of last fill level change + * @req_q_util: used for accounting + * @req_q_full: queue full incidents + * @req_q_wq: used to wait for SBAL availability + * @adapter: adapter used in conjunction with this QDIO structure + */ +struct zfcp_qdio { + struct zfcp_qdio_queue resp_q; + struct zfcp_qdio_queue req_q; + spinlock_t stat_lock; + spinlock_t req_q_lock; + unsigned long long req_q_time; + u64 req_q_util; + atomic_t req_q_full; + wait_queue_head_t req_q_wq; + struct zfcp_adapter *adapter; +}; + struct zfcp_adapter { atomic_t refcount; /* reference count */ wait_queue_head_t remove_wq; /* can be used to wait for @@ -428,6 +453,7 @@ struct zfcp_adapter { u64 peer_wwpn; /* P2P peer WWPN */ u32 peer_d_id; /* P2P peer D_ID */ struct ccw_device *ccw_device; /* S/390 ccw device */ + struct zfcp_qdio *qdio; u32 hydra_version; /* Hydra version */ u32 fsf_lic_version; u32 adapter_features; /* FCP channel features */ @@ -439,15 +465,7 @@ struct zfcp_adapter { 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 */ - ktime_t req_q_time; /* time of last fill level change */ - u64 req_q_util; /* for accounting */ - spinlock_t qdio_stat_lock; u32 fsf_req_seq_no; /* FSF cmnd seq number */ - wait_queue_head_t request_wq; /* can be used to wait for - more avaliable SBALs */ - struct zfcp_qdio_queue resp_q; /* response queue */ rwlock_t abort_lock; /* Protects against SCSI stack abort/command completion races */ @@ -456,10 +474,9 @@ struct zfcp_adapter { atomic_t status; /* status of this adapter */ struct list_head erp_ready_head; /* error recovery for this adapter/devices */ + wait_queue_head_t erp_ready_wq; struct list_head erp_running_head; rwlock_t erp_lock; - struct semaphore erp_ready_sem; - wait_queue_head_t erp_thread_wqh; wait_queue_head_t erp_done_wqh; struct zfcp_erp_action erp_action; /* pending error recovery */ atomic_t erp_counter; @@ -467,27 +484,16 @@ struct zfcp_adapter { actions */ u32 erp_low_mem_count; /* nr of erp actions waiting for memory */ + struct task_struct *erp_thread; struct zfcp_wka_ports *gs; /* generic services */ - debug_info_t *rec_dbf; - debug_info_t *hba_dbf; - debug_info_t *san_dbf; /* debug feature areas */ - debug_info_t *scsi_dbf; - spinlock_t rec_dbf_lock; - spinlock_t hba_dbf_lock; - spinlock_t san_dbf_lock; - spinlock_t scsi_dbf_lock; - struct zfcp_rec_dbf_record rec_dbf_buf; - struct zfcp_hba_dbf_record hba_dbf_buf; - struct zfcp_san_dbf_record san_dbf_buf; - struct zfcp_scsi_dbf_record scsi_dbf_buf; + struct zfcp_dbf *dbf; /* debug traces */ struct zfcp_adapter_mempool pool; /* Adapter memory pools */ - struct qdio_initialize qdio_init_data; /* for qdio_establish */ struct fc_host_statistics *fc_stats; struct fsf_qtcb_bottom_port *stats_reset_data; unsigned long stats_reset; struct work_struct scan_work; struct service_level service_level; - atomic_t qdio_outb_full; /* queue full incidents */ + struct workqueue_struct *work_queue; }; struct zfcp_port { @@ -531,36 +537,64 @@ struct zfcp_unit { struct work_struct scsi_work; }; -/* FSF request */ +/** + * struct zfcp_queue_req - queue related values for a request + * @sbal_number: number of free SBALs + * @sbal_first: first SBAL for this request + * @sbal_last: last SBAL for this request + * @sbal_limit: last possible SBAL for this request + * @sbale_curr: current SBALE at creation of this request + * @sbal_response: SBAL used in interrupt + * @qdio_outb_usage: usage of outbound queue + * @qdio_inb_usage: usage of inbound queue + */ +struct zfcp_queue_req { + u8 sbal_number; + u8 sbal_first; + u8 sbal_last; + u8 sbal_limit; + u8 sbale_curr; + u8 sbal_response; + u16 qdio_outb_usage; + u16 qdio_inb_usage; +}; + +/** + * struct zfcp_fsf_req - basic FSF request structure + * @list: list of FSF requests + * @req_id: unique request ID + * @adapter: adapter this request belongs to + * @queue_req: queue related values + * @completion: used to signal the completion of the request + * @status: status of the request + * @fsf_command: FSF command issued + * @qtcb: associated QTCB + * @seq_no: sequence number of this request + * @data: private data + * @timer: timer data of this request + * @erp_action: reference to erp action if request issued on behalf of ERP + * @pool: reference to memory pool if used for this request + * @issued: time when request was send (STCK) + * @unit: reference to unit if this request is a SCSI request + * @handler: handler which should be called to process response + */ struct zfcp_fsf_req { - struct list_head list; /* list of FSF requests */ - unsigned long req_id; /* unique request ID */ - struct zfcp_adapter *adapter; /* adapter request belongs to */ - u8 sbal_number; /* nr of SBALs free for use */ - u8 sbal_first; /* first SBAL for this request */ - u8 sbal_last; /* last SBAL for this request */ - u8 sbal_limit; /* last possible SBAL for - this reuest */ - u8 sbale_curr; /* current SBALE during creation - of request */ - u8 sbal_response; /* SBAL used in interrupt */ - wait_queue_head_t completion_wq; /* can be used by a routine - to wait for completion */ - 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 */ - void *data; /* private data of request */ - struct timer_list timer; /* used for erp or scsi er */ - struct zfcp_erp_action *erp_action; /* used if this request is - issued on behalf of erp */ - mempool_t *pool; /* used if request was alloacted - from emergency pool */ - unsigned long long issued; /* request sent time (STCK) */ - struct zfcp_unit *unit; + struct list_head list; + unsigned long req_id; + struct zfcp_adapter *adapter; + struct zfcp_queue_req queue_req; + struct completion completion; + u32 status; + u32 fsf_command; + struct fsf_qtcb *qtcb; + u32 seq_no; + void *data; + struct timer_list timer; + struct zfcp_erp_action *erp_action; + mempool_t *pool; + unsigned long long issued; + struct zfcp_unit *unit; void (*handler)(struct zfcp_fsf_req *); - u16 qdio_outb_usage;/* usage of outbound queue */ - u16 qdio_inb_usage; /* usage of inbound queue */ }; /* driver data */ @@ -570,18 +604,11 @@ struct zfcp_data { rwlock_t config_lock; /* serialises changes to adapter/port/unit lists */ - struct semaphore config_sema; /* serialises configuration - changes */ - struct kmem_cache *fsf_req_qtcb_cache; + struct mutex config_mutex; + struct kmem_cache *gpn_ft_cache; + struct kmem_cache *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 */ -struct zfcp_fsf_req_qtcb { - struct zfcp_fsf_req fsf_req; - struct fsf_qtcb qtcb; }; /********************** ZFCP SPECIFIC DEFINES ********************************/ |