diff options
Diffstat (limited to 'drivers/s390/scsi')
| -rw-r--r-- | drivers/s390/scsi/zfcp_dbf.c | 5 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_def.h | 31 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_ext.h | 6 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_fc.c | 44 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_fc.h | 50 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.c | 22 |
6 files changed, 90 insertions, 68 deletions
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index d7a550af4a25..e945344ff711 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -13,6 +13,7 @@ #include <asm/debug.h> #include "zfcp_dbf.h" #include "zfcp_ext.h" +#include "zfcp_fc.h" static u32 dbfsize = 4; @@ -681,7 +682,7 @@ void zfcp_dbf_rec_action(char *id2, struct zfcp_erp_action *erp_action) void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *fsf_req) { struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data; - struct zfcp_wka_port *wka_port = ct->wka_port; + struct zfcp_fc_wka_port *wka_port = ct->wka_port; struct zfcp_adapter *adapter = wka_port->adapter; struct zfcp_dbf *dbf = adapter->dbf; struct fc_ct_hdr *hdr = sg_virt(ct->req); @@ -718,7 +719,7 @@ void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *fsf_req) void zfcp_dbf_san_ct_response(struct zfcp_fsf_req *fsf_req) { struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data; - struct zfcp_wka_port *wka_port = ct->wka_port; + struct zfcp_fc_wka_port *wka_port = ct->wka_port; struct zfcp_adapter *adapter = wka_port->adapter; struct fc_ct_hdr *hdr = sg_virt(ct->resp); struct zfcp_dbf *dbf = adapter->dbf; diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index c64821145475..c00aa2b174a1 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -104,14 +104,6 @@ #define ZFCP_STATUS_PORT_PHYS_OPEN 0x00000001 #define ZFCP_STATUS_PORT_LINK_TEST 0x00000002 -/* 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_SHARED 0x00000004 #define ZFCP_STATUS_UNIT_READONLY 0x00000008 @@ -155,7 +147,7 @@ struct zfcp_adapter_mempool { * @status: used to pass error status to calling function */ struct zfcp_send_ct { - struct zfcp_wka_port *wka_port; + struct zfcp_fc_wka_port *wka_port; struct scatterlist *req; struct scatterlist *resp; void (*handler)(unsigned long); @@ -190,25 +182,6 @@ struct zfcp_send_els { 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_wka_ports { - struct zfcp_wka_port ms; /* management service */ - struct zfcp_wka_port ts; /* time service */ - struct zfcp_wka_port ds; /* directory service */ - struct zfcp_wka_port as; /* alias service */ - struct zfcp_wka_port ks; /* key distribution service */ -}; - struct zfcp_qdio_queue { struct qdio_buffer *sbal[QDIO_MAX_BUFFERS_PER_Q]; u8 first; /* index of next free bfr in queue */ @@ -309,7 +282,7 @@ struct zfcp_adapter { u32 erp_low_mem_count; /* nr of erp actions waiting for memory */ struct task_struct *erp_thread; - struct zfcp_wka_ports *gs; /* generic services */ + struct zfcp_fc_wka_ports *gs; /* generic services */ struct zfcp_dbf *dbf; /* debug traces */ struct zfcp_adapter_mempool pool; /* Adapter memory pools */ struct fc_host_statistics *fc_stats; diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index c2b23b5a3d0a..6a2d6e390b68 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -103,7 +103,7 @@ extern void zfcp_fc_trigger_did_lookup(struct zfcp_port *); extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fc_els_flogi *); extern void zfcp_fc_test_link(struct zfcp_port *); extern void zfcp_fc_link_test_work(struct work_struct *); -extern void zfcp_fc_wka_ports_force_offline(struct zfcp_wka_ports *); +extern void zfcp_fc_wka_ports_force_offline(struct zfcp_fc_wka_ports *); extern int zfcp_fc_gs_setup(struct zfcp_adapter *); extern void zfcp_fc_gs_destroy(struct zfcp_adapter *); extern int zfcp_fc_execute_els_fc_job(struct fc_bsg_job *); @@ -111,8 +111,8 @@ extern int zfcp_fc_execute_ct_fc_job(struct fc_bsg_job *); /* zfcp_fsf.c */ extern int zfcp_fsf_open_port(struct zfcp_erp_action *); -extern int zfcp_fsf_open_wka_port(struct zfcp_wka_port *); -extern int zfcp_fsf_close_wka_port(struct zfcp_wka_port *); +extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *); +extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *); extern int zfcp_fsf_close_port(struct zfcp_erp_action *); extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *); extern int zfcp_fsf_open_unit(struct zfcp_erp_action *); diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c index 7c306a5ef4dd..d6d1e78ba0f9 100644 --- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -28,25 +28,25 @@ struct zfcp_fc_ns_handler_data { unsigned long handler_data; }; -static int zfcp_fc_wka_port_get(struct zfcp_wka_port *wka_port) +static int zfcp_fc_wka_port_get(struct zfcp_fc_wka_port *wka_port) { if (mutex_lock_interruptible(&wka_port->mutex)) return -ERESTARTSYS; - if (wka_port->status == ZFCP_WKA_PORT_OFFLINE || - wka_port->status == ZFCP_WKA_PORT_CLOSING) { - wka_port->status = ZFCP_WKA_PORT_OPENING; + if (wka_port->status == ZFCP_FC_WKA_PORT_OFFLINE || + wka_port->status == ZFCP_FC_WKA_PORT_CLOSING) { + wka_port->status = ZFCP_FC_WKA_PORT_OPENING; if (zfcp_fsf_open_wka_port(wka_port)) - wka_port->status = ZFCP_WKA_PORT_OFFLINE; + wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; } mutex_unlock(&wka_port->mutex); wait_event(wka_port->completion_wq, - wka_port->status == ZFCP_WKA_PORT_ONLINE || - wka_port->status == ZFCP_WKA_PORT_OFFLINE); + wka_port->status == ZFCP_FC_WKA_PORT_ONLINE || + wka_port->status == ZFCP_FC_WKA_PORT_OFFLINE); - if (wka_port->status == ZFCP_WKA_PORT_ONLINE) { + if (wka_port->status == ZFCP_FC_WKA_PORT_ONLINE) { atomic_inc(&wka_port->refcount); return 0; } @@ -56,24 +56,24 @@ static int zfcp_fc_wka_port_get(struct zfcp_wka_port *wka_port) static void zfcp_fc_wka_port_offline(struct work_struct *work) { struct delayed_work *dw = to_delayed_work(work); - struct zfcp_wka_port *wka_port = - container_of(dw, struct zfcp_wka_port, work); + struct zfcp_fc_wka_port *wka_port = + container_of(dw, struct zfcp_fc_wka_port, work); mutex_lock(&wka_port->mutex); if ((atomic_read(&wka_port->refcount) != 0) || - (wka_port->status != ZFCP_WKA_PORT_ONLINE)) + (wka_port->status != ZFCP_FC_WKA_PORT_ONLINE)) goto out; - wka_port->status = ZFCP_WKA_PORT_CLOSING; + wka_port->status = ZFCP_FC_WKA_PORT_CLOSING; if (zfcp_fsf_close_wka_port(wka_port)) { - wka_port->status = ZFCP_WKA_PORT_OFFLINE; + wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; wake_up(&wka_port->completion_wq); } out: mutex_unlock(&wka_port->mutex); } -static void zfcp_fc_wka_port_put(struct zfcp_wka_port *wka_port) +static void zfcp_fc_wka_port_put(struct zfcp_fc_wka_port *wka_port) { if (atomic_dec_return(&wka_port->refcount) != 0) return; @@ -81,7 +81,7 @@ static void zfcp_fc_wka_port_put(struct zfcp_wka_port *wka_port) schedule_delayed_work(&wka_port->work, HZ / 100); } -static void zfcp_fc_wka_port_init(struct zfcp_wka_port *wka_port, u32 d_id, +static void zfcp_fc_wka_port_init(struct zfcp_fc_wka_port *wka_port, u32 d_id, struct zfcp_adapter *adapter) { init_waitqueue_head(&wka_port->completion_wq); @@ -89,21 +89,21 @@ static void zfcp_fc_wka_port_init(struct zfcp_wka_port *wka_port, u32 d_id, wka_port->adapter = adapter; wka_port->d_id = d_id; - wka_port->status = ZFCP_WKA_PORT_OFFLINE; + wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; atomic_set(&wka_port->refcount, 0); mutex_init(&wka_port->mutex); INIT_DELAYED_WORK(&wka_port->work, zfcp_fc_wka_port_offline); } -static void zfcp_fc_wka_port_force_offline(struct zfcp_wka_port *wka) +static void zfcp_fc_wka_port_force_offline(struct zfcp_fc_wka_port *wka) { cancel_delayed_work_sync(&wka->work); mutex_lock(&wka->mutex); - wka->status = ZFCP_WKA_PORT_OFFLINE; + wka->status = ZFCP_FC_WKA_PORT_OFFLINE; mutex_unlock(&wka->mutex); } -void zfcp_fc_wka_ports_force_offline(struct zfcp_wka_ports *gs) +void zfcp_fc_wka_ports_force_offline(struct zfcp_fc_wka_ports *gs) { if (!gs) return; @@ -111,7 +111,6 @@ void zfcp_fc_wka_ports_force_offline(struct zfcp_wka_ports *gs) zfcp_fc_wka_port_force_offline(&gs->ts); zfcp_fc_wka_port_force_offline(&gs->ds); zfcp_fc_wka_port_force_offline(&gs->as); - zfcp_fc_wka_port_force_offline(&gs->ks); } static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range, @@ -834,9 +833,9 @@ int zfcp_fc_execute_ct_fc_job(struct fc_bsg_job *job) int zfcp_fc_gs_setup(struct zfcp_adapter *adapter) { - struct zfcp_wka_ports *wka_ports; + struct zfcp_fc_wka_ports *wka_ports; - wka_ports = kzalloc(sizeof(struct zfcp_wka_ports), GFP_KERNEL); + wka_ports = kzalloc(sizeof(struct zfcp_fc_wka_ports), GFP_KERNEL); if (!wka_ports) return -ENOMEM; @@ -845,7 +844,6 @@ int zfcp_fc_gs_setup(struct zfcp_adapter *adapter) zfcp_fc_wka_port_init(&wka_ports->ts, FC_FID_TIME_SERV, adapter); zfcp_fc_wka_port_init(&wka_ports->ds, FC_FID_DIR_SERV, adapter); zfcp_fc_wka_port_init(&wka_ports->as, FC_FID_ALIASES, adapter); - zfcp_fc_wka_port_init(&wka_ports->ks, FC_FID_SEC_KEY, adapter); return 0; } diff --git a/drivers/s390/scsi/zfcp_fc.h b/drivers/s390/scsi/zfcp_fc.h index 12fc6ebbc244..9c787e043ff8 100644 --- a/drivers/s390/scsi/zfcp_fc.h +++ b/drivers/s390/scsi/zfcp_fc.h @@ -112,6 +112,56 @@ struct zfcp_fc_els_adisc { }; /** + * enum zfcp_fc_wka_status - FC WKA port status in zfcp + * @ZFCP_FC_WKA_PORT_OFFLINE: Port is closed and not in use + * @ZFCP_FC_WKA_PORT_CLOSING: The FSF "close port" request is pending + * @ZFCP_FC_WKA_PORT_OPENING: The FSF "open port" request is pending + * @ZFCP_FC_WKA_PORT_ONLINE: The port is open and the port handle is valid + */ +enum zfcp_fc_wka_status { + ZFCP_FC_WKA_PORT_OFFLINE, + ZFCP_FC_WKA_PORT_CLOSING, + ZFCP_FC_WKA_PORT_OPENING, + ZFCP_FC_WKA_PORT_ONLINE, +}; + +/** + * struct zfcp_fc_wka_port - representation of well-known-address (WKA) FC port + * @adapter: Pointer to adapter structure this WKA port belongs to + * @completion_wq: Wait for completion of open/close command + * @status: Current status of WKA port + * @refcount: Reference count to keep port open as long as it is in use + * @d_id: FC destination id or well-known-address + * @handle: FSF handle for the open WKA port + * @mutex: Mutex used during opening/closing state changes + * @work: For delaying the closing of the WKA port + */ +struct zfcp_fc_wka_port { + struct zfcp_adapter *adapter; + wait_queue_head_t completion_wq; + enum zfcp_fc_wka_status status; + atomic_t refcount; + u32 d_id; + u32 handle; + struct mutex mutex; + struct delayed_work work; +}; + +/** + * struct zfcp_fc_wka_ports - Data structures for FC generic services + * @ms: FC Management service + * @ts: FC time service + * @ds: FC directory service + * @as: FC alias service + */ +struct zfcp_fc_wka_ports { + struct zfcp_fc_wka_port ms; + struct zfcp_fc_wka_port ts; + struct zfcp_fc_wka_port ds; + struct zfcp_fc_wka_port as; +}; + +/** * zfcp_fc_scsi_to_fcp - setup FCP command with data from scsi_cmnd * @fcp: fcp_cmnd to setup * @scsi: scsi_cmnd where to get LUN, task attributes/flags and CDB diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 9d7bf965d398..9ada555ca5a8 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -1096,7 +1096,7 @@ static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, */ int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool) { - struct zfcp_wka_port *wka_port = ct->wka_port; + struct zfcp_fc_wka_port *wka_port = ct->wka_port; struct zfcp_qdio *qdio = wka_port->adapter->qdio; struct zfcp_fsf_req *req; int ret = -EIO; @@ -1610,11 +1610,11 @@ out: static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) { - struct zfcp_wka_port *wka_port = req->data; + struct zfcp_fc_wka_port *wka_port = req->data; struct fsf_qtcb_header *header = &req->qtcb->header; if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { - wka_port->status = ZFCP_WKA_PORT_OFFLINE; + wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; goto out; } @@ -1627,13 +1627,13 @@ static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) req->status |= ZFCP_STATUS_FSFREQ_ERROR; /* fall through */ case FSF_ACCESS_DENIED: - wka_port->status = ZFCP_WKA_PORT_OFFLINE; + wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; break; case FSF_GOOD: wka_port->handle = header->port_handle; /* fall through */ case FSF_PORT_ALREADY_OPEN: - wka_port->status = ZFCP_WKA_PORT_ONLINE; + wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; } out: wake_up(&wka_port->completion_wq); @@ -1641,10 +1641,10 @@ out: /** * zfcp_fsf_open_wka_port - create and send open wka-port request - * @wka_port: pointer to struct zfcp_wka_port + * @wka_port: pointer to struct zfcp_fc_wka_port * Returns: 0 on success, error otherwise */ -int zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port) +int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) { struct qdio_buffer_element *sbale; struct zfcp_qdio *qdio = wka_port->adapter->qdio; @@ -1683,23 +1683,23 @@ out: static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) { - struct zfcp_wka_port *wka_port = req->data; + struct zfcp_fc_wka_port *wka_port = req->data; if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { req->status |= ZFCP_STATUS_FSFREQ_ERROR; zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); } - wka_port->status = ZFCP_WKA_PORT_OFFLINE; + wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; wake_up(&wka_port->completion_wq); } /** * zfcp_fsf_close_wka_port - create and send close wka port request - * @erp_action: pointer to struct zfcp_erp_action + * @wka_port: WKA port to open * Returns: 0 on success, error otherwise */ -int zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port) +int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) { struct qdio_buffer_element *sbale; struct zfcp_qdio *qdio = wka_port->adapter->qdio; |