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[SCSI] zfcp: Move qdio related data out of zfcp_adapter

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The zfcp_adapter structure was growing over time to a size of almost
one memory page. To reduce the size of the data structure and to
seperate different layers, put all qdio related data in the new
zfcp_qdio data structure.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Swen Schillig 2009-08-18 15:43:19 +02:00 committed by James Bottomley
parent 42428f747a
commit 564e1c86c8
9 changed files with 342 additions and 295 deletions
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20
drivers/s390/scsi/zfcp_aux.c
View File

@ -428,7 +428,7 @@ static void zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)
int zfcp_status_read_refill(struct zfcp_adapter *adapter)
{
while (atomic_read(&adapter->stat_miss) > 0)
if (zfcp_fsf_status_read(adapter)) {
if (zfcp_fsf_status_read(adapter->qdio)) {
if (atomic_read(&adapter->stat_miss) >= 16) {
zfcp_erp_adapter_reopen(adapter, 0, "axsref1",
NULL);
@ -507,11 +507,16 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device)
return -ENOMEM;
}
adapter->qdio = kzalloc(sizeof(struct zfcp_qdio), GFP_KERNEL);
if (!adapter->qdio)
goto qdio_mem_failed;
adapter->qdio->adapter = adapter;
ccw_device->handler = NULL;
adapter->ccw_device = ccw_device;
atomic_set(&adapter->refcount, 0);
if (zfcp_qdio_allocate(adapter))
if (zfcp_qdio_allocate(adapter->qdio, ccw_device))
goto qdio_allocate_failed;
if (zfcp_allocate_low_mem_buffers(adapter))
@ -536,8 +541,8 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device)
spin_lock_init(&adapter->req_list_lock);
spin_lock_init(&adapter->req_q_lock);
spin_lock_init(&adapter->qdio_stat_lock);
spin_lock_init(&adapter->qdio->req_q_lock);
spin_lock_init(&adapter->qdio->stat_lock);
rwlock_init(&adapter->erp_lock);
rwlock_init(&adapter->abort_lock);
@ -574,7 +579,9 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device)
failed_low_mem_buffers:
zfcp_free_low_mem_buffers(adapter);
qdio_allocate_failed:
zfcp_qdio_free(adapter);
zfcp_qdio_free(adapter->qdio);
kfree(adapter->qdio);
qdio_mem_failed:
kfree(adapter);
return -ENOMEM;
}
@ -605,12 +612,13 @@ void zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
zfcp_destroy_adapter_work_queue(adapter);
zfcp_adapter_debug_unregister(adapter);
zfcp_qdio_free(adapter);
zfcp_qdio_free(adapter->qdio);
zfcp_free_low_mem_buffers(adapter);
kfree(adapter->req_list);
kfree(adapter->fc_stats);
kfree(adapter->stats_reset_data);
kfree(adapter->gs);
kfree(adapter->qdio);
kfree(adapter);
}

6
drivers/s390/scsi/zfcp_dbf.c
View File

@ -274,16 +274,16 @@ void _zfcp_hba_dbf_event_fsf_unsol(const char *tag, int level,
/**
* zfcp_hba_dbf_event_qdio - trace event for QDIO related failure
* @adapter: adapter affected by this QDIO related event
* @qdio: qdio structure affected by this QDIO related event
* @qdio_error: as passed by qdio module
* @sbal_index: first buffer with error condition, as passed by qdio module
* @sbal_count: number of buffers affected, as passed by qdio module
*/
void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *adapter,
void zfcp_hba_dbf_event_qdio(struct zfcp_qdio *qdio,
unsigned int qdio_error, int sbal_index,
int sbal_count)
{
struct zfcp_dbf *dbf = adapter->dbf;
struct zfcp_dbf *dbf = qdio->adapter->dbf;
struct zfcp_hba_dbf_record *r = &dbf->hba_dbf_buf;
unsigned long flags;

34
drivers/s390/scsi/zfcp_def.h
View File

@ -428,6 +428,29 @@ 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;
ktime_t 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
@ -436,6 +459,7 @@ 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 */
@ -447,15 +471,7 @@ 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 */
@ -478,13 +494,11 @@ struct zfcp_adapter {
struct zfcp_wka_ports *gs; /* generic services */
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;
};

8
drivers/s390/scsi/zfcp_erp.c
View File

@ -603,9 +603,11 @@ static void zfcp_erp_wakeup(struct zfcp_adapter *adapter)
static int zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *act)
{
if (zfcp_qdio_open(act->adapter))
struct zfcp_qdio *qdio = act->adapter->qdio;
if (zfcp_qdio_open(qdio))
return ZFCP_ERP_FAILED;
init_waitqueue_head(&act->adapter->request_wq);
init_waitqueue_head(&qdio->req_q_wq);
atomic_set_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &act->adapter->status);
return ZFCP_ERP_SUCCEEDED;
}
@ -710,7 +712,7 @@ static void zfcp_erp_adapter_strategy_close(struct zfcp_erp_action *act)
struct zfcp_adapter *adapter = act->adapter;
/* close queues to ensure that buffers are not accessed by adapter */
zfcp_qdio_close(adapter);
zfcp_qdio_close(adapter->qdio);
zfcp_fsf_req_dismiss_all(adapter);
adapter->fsf_req_seq_no = 0;
zfcp_fc_wka_ports_force_offline(adapter->gs);

26
drivers/s390/scsi/zfcp_ext.h
View File

@ -51,7 +51,7 @@ extern void _zfcp_hba_dbf_event_fsf_response(const char *, int level,
extern void _zfcp_hba_dbf_event_fsf_unsol(const char *, int level,
struct zfcp_adapter *,
struct fsf_status_read_buffer *);
extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *, unsigned int, int,
extern void zfcp_hba_dbf_event_qdio(struct zfcp_qdio *, unsigned int, int,
int);
extern void zfcp_hba_dbf_event_berr(struct zfcp_adapter *,
struct zfcp_fsf_req *);
@ -118,15 +118,15 @@ extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *);
extern int zfcp_fsf_open_unit(struct zfcp_erp_action *);
extern int zfcp_fsf_close_unit(struct zfcp_erp_action *);
extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *);
extern int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *,
extern int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *,
struct fsf_qtcb_bottom_config *);
extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *);
extern int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *,
extern int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *,
struct fsf_qtcb_bottom_port *);
extern struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *,
struct zfcp_fsf_cfdc *);
extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
extern int zfcp_fsf_status_read(struct zfcp_adapter *);
extern int zfcp_fsf_status_read(struct zfcp_qdio *);
extern int zfcp_status_read_refill(struct zfcp_adapter *adapter);
extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *,
struct zfcp_erp_action *);
@ -137,21 +137,21 @@ extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);
extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *, u8);
extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long,
struct zfcp_unit *);
extern void zfcp_fsf_reqid_check(struct zfcp_adapter *, int);
extern void zfcp_fsf_reqid_check(struct zfcp_qdio *, int);
/* zfcp_qdio.c */
extern int zfcp_qdio_allocate(struct zfcp_adapter *);
extern void zfcp_qdio_free(struct zfcp_adapter *);
extern int zfcp_qdio_send(struct zfcp_adapter *, struct zfcp_queue_req *);
extern int zfcp_qdio_allocate(struct zfcp_qdio *, struct ccw_device *);
extern void zfcp_qdio_free(struct zfcp_qdio *);
extern int zfcp_qdio_send(struct zfcp_qdio *, struct zfcp_queue_req *);
extern struct qdio_buffer_element
*zfcp_qdio_sbale_req(struct zfcp_adapter *, struct zfcp_queue_req *);
*zfcp_qdio_sbale_req(struct zfcp_qdio *, struct zfcp_queue_req *);
extern struct qdio_buffer_element
*zfcp_qdio_sbale_curr(struct zfcp_adapter *, struct zfcp_queue_req *);
extern int zfcp_qdio_sbals_from_sg(struct zfcp_adapter *,
*zfcp_qdio_sbale_curr(struct zfcp_qdio *, struct zfcp_queue_req *);
extern int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *,
struct zfcp_queue_req *, unsigned long,
struct scatterlist *, int);
extern int zfcp_qdio_open(struct zfcp_adapter *);
extern void zfcp_qdio_close(struct zfcp_adapter *);
extern int zfcp_qdio_open(struct zfcp_qdio *);
extern void zfcp_qdio_close(struct zfcp_qdio *);
/* zfcp_scsi.c */
extern struct zfcp_data zfcp_data;

299
drivers/s390/scsi/zfcp_fsf.c
View File

@ -637,33 +637,34 @@ static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req)
}
}
static int zfcp_fsf_sbal_check(struct zfcp_adapter *adapter)
static int zfcp_fsf_sbal_check(struct zfcp_qdio *qdio)
{
struct zfcp_qdio_queue *req_q = &adapter->req_q;
struct zfcp_qdio_queue *req_q = &qdio->req_q;
spin_lock_bh(&adapter->req_q_lock);
spin_lock_bh(&qdio->req_q_lock);
if (atomic_read(&req_q->count))
return 1;
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return 0;
}
static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter)
static int zfcp_fsf_req_sbal_get(struct zfcp_qdio *qdio)
{
struct zfcp_adapter *adapter = qdio->adapter;
long ret;
spin_unlock_bh(&adapter->req_q_lock);
ret = wait_event_interruptible_timeout(adapter->request_wq,
zfcp_fsf_sbal_check(adapter), 5 * HZ);
spin_unlock_bh(&qdio->req_q_lock);
ret = wait_event_interruptible_timeout(qdio->req_q_wq,
zfcp_fsf_sbal_check(qdio), 5 * HZ);
if (ret > 0)
return 0;
if (!ret) {
atomic_inc(&adapter->qdio_outb_full);
atomic_inc(&qdio->req_q_full);
/* assume hanging outbound queue, try queue recovery */
zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL);
}
spin_lock_bh(&adapter->req_q_lock);
spin_lock_bh(&qdio->req_q_lock);
return -EIO;
}
@ -700,11 +701,12 @@ static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool)
return qtcb;
}
static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio,
u32 fsf_cmd, mempool_t *pool)
{
struct qdio_buffer_element *sbale;
struct zfcp_qdio_queue *req_q = &adapter->req_q;
struct zfcp_qdio_queue *req_q = &qdio->req_q;
struct zfcp_adapter *adapter = qdio->adapter;
struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool);
if (unlikely(!req))
@ -725,7 +727,7 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
req->queue_req.sbal_last = req_q->first;
req->queue_req.sbale_curr = 1;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].addr = (void *) req->req_id;
sbale[0].flags |= SBAL_FLAGS0_COMMAND;
@ -740,7 +742,7 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
return ERR_PTR(-ENOMEM);
}
req->qtcb->prefix.req_seq_no = req->adapter->fsf_req_seq_no;
req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no;
req->qtcb->prefix.req_id = req->req_id;
req->qtcb->prefix.ulp_info = 26;
req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command];
@ -764,6 +766,7 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
{
struct zfcp_adapter *adapter = req->adapter;
struct zfcp_qdio *qdio = adapter->qdio;
unsigned long flags;
int idx;
int with_qtcb = (req->qtcb != NULL);
@ -774,9 +777,9 @@ static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
list_add_tail(&req->list, &adapter->req_list[idx]);
spin_unlock_irqrestore(&adapter->req_list_lock, flags);
req->queue_req.qdio_outb_usage = atomic_read(&adapter->req_q.count);
req->queue_req.qdio_outb_usage = atomic_read(&qdio->req_q.count);
req->issued = get_clock();
if (zfcp_qdio_send(adapter, &req->queue_req)) {
if (zfcp_qdio_send(qdio, &req->queue_req)) {
del_timer(&req->timer);
spin_lock_irqsave(&adapter->req_list_lock, flags);
/* lookup request again, list might have changed */
@ -801,25 +804,26 @@ static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
* @req_flags: request flags
* Returns: 0 on success, ERROR otherwise
*/
int zfcp_fsf_status_read(struct zfcp_adapter *adapter)
int zfcp_fsf_status_read(struct zfcp_qdio *qdio)
{
struct zfcp_adapter *adapter = qdio->adapter;
struct zfcp_fsf_req *req;
struct fsf_status_read_buffer *sr_buf;
struct qdio_buffer_element *sbale;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS,
req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS,
adapter->pool.status_read_req);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY;
req->queue_req.sbale_curr = 2;
@ -830,7 +834,7 @@ int zfcp_fsf_status_read(struct zfcp_adapter *adapter)
}
memset(sr_buf, 0, sizeof(*sr_buf));
req->data = sr_buf;
sbale = zfcp_qdio_sbale_curr(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_curr(qdio, &req->queue_req);
sbale->addr = (void *) sr_buf;
sbale->length = sizeof(*sr_buf);
@ -846,7 +850,7 @@ int zfcp_fsf_status_read(struct zfcp_adapter *adapter)
zfcp_fsf_req_free(req);
zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL);
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
@ -913,13 +917,13 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
struct zfcp_adapter *adapter = unit->port->adapter;
struct zfcp_qdio *qdio = unit->port->adapter->qdio;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND,
adapter->pool.scsi_abort);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND,
qdio->adapter->pool.scsi_abort);
if (IS_ERR(req)) {
req = NULL;
goto out;
@ -929,7 +933,7 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
ZFCP_STATUS_COMMON_UNBLOCKED)))
goto out_error_free;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -947,7 +951,7 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
zfcp_fsf_req_free(req);
req = NULL;
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return req;
}
@ -1024,7 +1028,7 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
int max_sbals)
{
struct zfcp_adapter *adapter = req->adapter;
struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(adapter,
struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(adapter->qdio,
&req->queue_req);
u32 feat = adapter->adapter_features;
int bytes;
@ -1043,7 +1047,7 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
return 0;
}
bytes = zfcp_qdio_sbals_from_sg(adapter, &req->queue_req,
bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req,
SBAL_FLAGS0_TYPE_WRITE_READ,
sg_req, max_sbals);
if (bytes <= 0)
@ -1051,7 +1055,7 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
req->qtcb->bottom.support.req_buf_length = bytes;
req->queue_req.sbale_curr = ZFCP_LAST_SBALE_PER_SBAL;
bytes = zfcp_qdio_sbals_from_sg(adapter, &req->queue_req,
bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req,
SBAL_FLAGS0_TYPE_WRITE_READ,
sg_resp, max_sbals);
if (bytes <= 0)
@ -1071,15 +1075,15 @@ int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool,
struct zfcp_erp_action *erp_action)
{
struct zfcp_wka_port *wka_port = ct->wka_port;
struct zfcp_adapter *adapter = wka_port->adapter;
struct zfcp_qdio *qdio = wka_port->adapter->qdio;
struct zfcp_fsf_req *req;
int ret = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_GENERIC, pool);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, pool);
if (IS_ERR(req)) {
ret = PTR_ERR(req);
@ -1118,7 +1122,7 @@ int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool,
if (erp_action)
erp_action->fsf_req = NULL;
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return ret;
}
@ -1181,15 +1185,15 @@ static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
int zfcp_fsf_send_els(struct zfcp_send_els *els)
{
struct zfcp_fsf_req *req;
struct zfcp_adapter *adapter = els->adapter;
struct zfcp_qdio *qdio = els->adapter->qdio;
struct fsf_qtcb_bottom_support *bottom;
int ret = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS, NULL);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, NULL);
if (IS_ERR(req)) {
ret = PTR_ERR(req);
@ -1221,7 +1225,7 @@ int zfcp_fsf_send_els(struct zfcp_send_els *els)
failed_send:
zfcp_fsf_req_free(req);
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return ret;
}
@ -1229,15 +1233,15 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_qdio *qdio = erp_action->adapter->qdio;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA,
adapter->pool.erp_req);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
@ -1245,7 +1249,7 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -1265,29 +1269,29 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
erp_action->fsf_req = NULL;
}
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter,
int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio,
struct fsf_qtcb_bottom_config *data)
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out_unlock;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA, NULL);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, NULL);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out_unlock;
}
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_exchange_config_data_handler;
@ -1303,7 +1307,7 @@ int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter,
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
if (!retval)
wait_for_completion(&req->completion);
@ -1311,7 +1315,7 @@ int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter,
return retval;
out_unlock:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
@ -1322,20 +1326,20 @@ int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter,
*/
int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action)
{
struct zfcp_qdio *qdio = erp_action->adapter->qdio;
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req;
struct zfcp_adapter *adapter = erp_action->adapter;
int retval = -EIO;
if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
return -EOPNOTSUPP;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA,
adapter->pool.erp_req);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
@ -1343,7 +1347,7 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action)
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -1358,31 +1362,31 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action)
erp_action->fsf_req = NULL;
}
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
/**
* zfcp_fsf_exchange_port_data_sync - request information about local port
* @adapter: pointer to struct zfcp_adapter
* @qdio: pointer to struct zfcp_qdio
* @data: pointer to struct fsf_qtcb_bottom_port
* Returns: 0 on success, error otherwise
*/
int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter,
int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio,
struct fsf_qtcb_bottom_port *data)
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
int retval = -EIO;
if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
return -EOPNOTSUPP;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out_unlock;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, NULL);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, NULL);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
@ -1392,14 +1396,14 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter,
if (data)
req->data = data;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_exchange_port_data_handler;
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
if (!retval)
wait_for_completion(&req->completion);
@ -1409,7 +1413,7 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter,
return retval;
out_unlock:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
@ -1495,17 +1499,17 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
{
struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_fsf_req *req;
struct zfcp_qdio *qdio = erp_action->adapter->qdio;
struct zfcp_port *port = erp_action->port;
struct zfcp_fsf_req *req;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_PORT_WITH_DID,
adapter->pool.erp_req);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
@ -1513,7 +1517,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -1532,7 +1536,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
zfcp_port_put(port);
}
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
@ -1566,16 +1570,16 @@ static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req)
int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action)
{
struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_qdio *qdio = erp_action->adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT,
adapter->pool.erp_req);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
@ -1583,7 +1587,7 @@ int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action)
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -1600,7 +1604,7 @@ int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action)
erp_action->fsf_req = NULL;
}
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
@ -1643,16 +1647,16 @@ static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
int zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port)
{
struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = wka_port->adapter;
struct zfcp_qdio *qdio = wka_port->adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_PORT_WITH_DID,
adapter->pool.erp_req);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID,
qdio->adapter->pool.erp_req);
if (unlikely(IS_ERR(req))) {
retval = PTR_ERR(req);
@ -1660,7 +1664,7 @@ int zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port)
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -1673,7 +1677,7 @@ int zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port)
if (retval)
zfcp_fsf_req_free(req);
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
@ -1698,16 +1702,16 @@ static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req)
int zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port)
{
struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = wka_port->adapter;
struct zfcp_qdio *qdio = wka_port->adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT,
adapter->pool.erp_req);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT,
qdio->adapter->pool.erp_req);
if (unlikely(IS_ERR(req))) {
retval = PTR_ERR(req);
@ -1715,7 +1719,7 @@ int zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port)
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -1728,7 +1732,7 @@ int zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port)
if (retval)
zfcp_fsf_req_free(req);
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
@ -1790,16 +1794,16 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action)
{
struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_qdio *qdio = erp_action->adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PHYSICAL_PORT,
adapter->pool.erp_req);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
@ -1807,7 +1811,7 @@ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action)
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -1824,7 +1828,7 @@ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action)
erp_action->fsf_req = NULL;
}
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
@ -1964,14 +1968,15 @@ int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action)
{
struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_qdio *qdio = adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_LUN,
req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN,
adapter->pool.erp_req);
if (IS_ERR(req)) {
@ -1980,7 +1985,7 @@ int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action)
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -2001,7 +2006,7 @@ int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action)
erp_action->fsf_req = NULL;
}
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
@ -2050,16 +2055,16 @@ static void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req)
int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action)
{
struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_qdio *qdio = erp_action->adapter->qdio;
struct zfcp_fsf_req *req;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_LUN,
adapter->pool.erp_req);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
@ -2067,7 +2072,7 @@ int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action)
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -2085,7 +2090,7 @@ int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action)
erp_action->fsf_req = NULL;
}
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return retval;
}
@ -2353,18 +2358,19 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
unsigned int sbtype = SBAL_FLAGS0_TYPE_READ;
int real_bytes, retval = -EIO;
struct zfcp_adapter *adapter = unit->port->adapter;
struct zfcp_qdio *qdio = adapter->qdio;
if (unlikely(!(atomic_read(&unit->status) &
ZFCP_STATUS_COMMON_UNBLOCKED)))
return -EBUSY;
spin_lock(&adapter->req_q_lock);
if (atomic_read(&adapter->req_q.count) <= 0) {
atomic_inc(&adapter->qdio_outb_full);
spin_lock(&qdio->req_q_lock);
if (atomic_read(&qdio->req_q.count) <= 0) {
atomic_inc(&qdio->req_q_full);
goto out;
}
req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND,
req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND,
adapter->pool.scsi_req);
if (IS_ERR(req)) {
@ -2424,7 +2430,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) +
fcp_cmnd_iu->add_fcp_cdb_length + sizeof(u32);
real_bytes = zfcp_qdio_sbals_from_sg(adapter, &req->queue_req, sbtype,
real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, sbtype,
scsi_sglist(scsi_cmnd),
FSF_MAX_SBALS_PER_REQ);
if (unlikely(real_bytes < 0)) {
@ -2453,7 +2459,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
zfcp_fsf_req_free(req);
scsi_cmnd->host_scribble = NULL;
out:
spin_unlock(&adapter->req_q_lock);
spin_unlock(&qdio->req_q_lock);
return retval;
}
@ -2468,18 +2474,18 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
struct fcp_cmnd_iu *fcp_cmnd_iu;
struct zfcp_adapter *adapter = unit->port->adapter;
struct zfcp_qdio *qdio = unit->port->adapter->qdio;
if (unlikely(!(atomic_read(&unit->status) &
ZFCP_STATUS_COMMON_UNBLOCKED)))
return NULL;
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND,
adapter->pool.scsi_req);
req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND,
qdio->adapter->pool.scsi_req);
if (IS_ERR(req)) {
req = NULL;
@ -2496,7 +2502,7 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) +
sizeof(u32);
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@ -2511,7 +2517,7 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
zfcp_fsf_req_free(req);
req = NULL;
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
return req;
}
@ -2529,6 +2535,7 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
struct zfcp_fsf_cfdc *fsf_cfdc)
{
struct qdio_buffer_element *sbale;
struct zfcp_qdio *qdio = adapter->qdio;
struct zfcp_fsf_req *req = NULL;
struct fsf_qtcb_bottom_support *bottom;
int direction, retval = -EIO, bytes;
@ -2547,11 +2554,11 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
return ERR_PTR(-EINVAL);
}
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
spin_lock_bh(&qdio->req_q_lock);
if (zfcp_fsf_req_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(adapter, fsf_cfdc->command, NULL);
req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, NULL);
if (IS_ERR(req)) {
retval = -EPERM;
goto out;
@ -2559,15 +2566,16 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
req->handler = zfcp_fsf_control_file_handler;
sbale = zfcp_qdio_sbale_req(adapter, &req->queue_req);
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= direction;
bottom = &req->qtcb->bottom.support;
bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE;
bottom->option = fsf_cfdc->option;
bytes = zfcp_qdio_sbals_from_sg(adapter, &req->queue_req, direction,
fsf_cfdc->sg, FSF_MAX_SBALS_PER_REQ);
bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req,
direction, fsf_cfdc->sg,
FSF_MAX_SBALS_PER_REQ);
if (bytes != ZFCP_CFDC_MAX_SIZE) {
zfcp_fsf_req_free(req);
goto out;
@ -2576,7 +2584,7 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
out:
spin_unlock_bh(&adapter->req_q_lock);
spin_unlock_bh(&qdio->req_q_lock);
if (!retval) {
wait_for_completion(&req->completion);
@ -2590,9 +2598,10 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
* @adapter: pointer to struct zfcp_adapter
* @sbal_idx: response queue index of SBAL to be processed
*/
void zfcp_fsf_reqid_check(struct zfcp_adapter *adapter, int sbal_idx)
void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx)
{
struct qdio_buffer *sbal = adapter->resp_q.sbal[sbal_idx];
struct zfcp_adapter *adapter = qdio->adapter;
struct qdio_buffer *sbal = qdio->resp_q.sbal[sbal_idx];
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *fsf_req;
unsigned long flags, req_id;
@ -2618,7 +2627,7 @@ void zfcp_fsf_reqid_check(struct zfcp_adapter *adapter, int sbal_idx)
fsf_req->queue_req.sbal_response = sbal_idx;
fsf_req->queue_req.qdio_inb_usage =
atomic_read(&adapter->resp_q.count);
atomic_read(&qdio->resp_q.count);
zfcp_fsf_req_complete(fsf_req);
if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY))

222
drivers/s390/scsi/zfcp_qdio.c
View File

@ -36,18 +36,18 @@ zfcp_qdio_sbale(struct zfcp_qdio_queue *q, int sbal_idx, int sbale_idx)
/**
* zfcp_qdio_free - free memory used by request- and resposne queue
* @adapter: pointer to the zfcp_adapter structure
* @qdio: pointer to the zfcp_qdio structure
*/
void zfcp_qdio_free(struct zfcp_adapter *adapter)
void zfcp_qdio_free(struct zfcp_qdio *qdio)
{
struct qdio_buffer **sbal_req, **sbal_resp;
int p;
if (adapter->ccw_device)
qdio_free(adapter->ccw_device);
if (qdio->adapter->ccw_device)
qdio_free(qdio->adapter->ccw_device);
sbal_req = adapter->req_q.sbal;
sbal_resp = adapter->resp_q.sbal;
sbal_req = qdio->req_q.sbal;
sbal_resp = qdio->resp_q.sbal;
for (p = 0; p < QDIO_MAX_BUFFERS_PER_Q; p += QBUFF_PER_PAGE) {
free_page((unsigned long) sbal_req[p]);
@ -55,8 +55,10 @@ void zfcp_qdio_free(struct zfcp_adapter *adapter)
}
}
static void zfcp_qdio_handler_error(struct zfcp_adapter *adapter, char *id)
static void zfcp_qdio_handler_error(struct zfcp_qdio *qdio, char *id)
{
struct zfcp_adapter *adapter = qdio->adapter;
dev_warn(&adapter->ccw_device->dev, "A QDIO problem occurred\n");
zfcp_erp_adapter_reopen(adapter,
@ -75,47 +77,47 @@ static void zfcp_qdio_zero_sbals(struct qdio_buffer *sbal[], int first, int cnt)
}
/* this needs to be called prior to updating the queue fill level */
static void zfcp_qdio_account(struct zfcp_adapter *adapter)
static void zfcp_qdio_account(struct zfcp_qdio *qdio)
{
ktime_t now;
s64 span;
int free, used;
spin_lock(&adapter->qdio_stat_lock);
spin_lock(&qdio->stat_lock);
now = ktime_get();
span = ktime_us_delta(now, adapter->req_q_time);
free = max(0, atomic_read(&adapter->req_q.count));
span = ktime_us_delta(now, qdio->req_q_time);
free = max(0, atomic_read(&qdio->req_q.count));
used = QDIO_MAX_BUFFERS_PER_Q - free;
adapter->req_q_util += used * span;
adapter->req_q_time = now;
spin_unlock(&adapter->qdio_stat_lock);
qdio->req_q_util += used * span;
qdio->req_q_time = now;
spin_unlock(&qdio->stat_lock);
}
static void zfcp_qdio_int_req(struct ccw_device *cdev, unsigned int qdio_err,
int queue_no, int first, int count,
unsigned long parm)
{
struct zfcp_adapter *adapter = (struct zfcp_adapter *) parm;
struct zfcp_qdio_queue *queue = &adapter->req_q;
struct zfcp_qdio *qdio = (struct zfcp_qdio *) parm;
struct zfcp_qdio_queue *queue = &qdio->req_q;
if (unlikely(qdio_err)) {
zfcp_hba_dbf_event_qdio(adapter, qdio_err, first, count);
zfcp_qdio_handler_error(adapter, "qdireq1");
zfcp_hba_dbf_event_qdio(qdio, qdio_err, first, count);
zfcp_qdio_handler_error(qdio, "qdireq1");
return;
}
/* cleanup all SBALs being program-owned now */
zfcp_qdio_zero_sbals(queue->sbal, first, count);
zfcp_qdio_account(adapter);
zfcp_qdio_account(qdio);
atomic_add(count, &queue->count);
wake_up(&adapter->request_wq);
wake_up(&qdio->req_q_wq);
}
static void zfcp_qdio_resp_put_back(struct zfcp_adapter *adapter, int processed)
static void zfcp_qdio_resp_put_back(struct zfcp_qdio *qdio, int processed)
{
struct zfcp_qdio_queue *queue = &adapter->resp_q;
struct ccw_device *cdev = adapter->ccw_device;
struct zfcp_qdio_queue *queue = &qdio->resp_q;
struct ccw_device *cdev = qdio->adapter->ccw_device;
u8 count, start = queue->first;
unsigned int retval;
@ -137,12 +139,12 @@ static void zfcp_qdio_int_resp(struct ccw_device *cdev, unsigned int qdio_err,
int queue_no, int first, int count,
unsigned long parm)
{
struct zfcp_adapter *adapter = (struct zfcp_adapter *) parm;
struct zfcp_qdio *qdio = (struct zfcp_qdio *) parm;
int sbal_idx, sbal_no;
if (unlikely(qdio_err)) {
zfcp_hba_dbf_event_qdio(adapter, qdio_err, first, count);
zfcp_qdio_handler_error(adapter, "qdires1");
zfcp_hba_dbf_event_qdio(qdio, qdio_err, first, count);
zfcp_qdio_handler_error(qdio, "qdires1");
return;
}
@ -153,26 +155,26 @@ static void zfcp_qdio_int_resp(struct ccw_device *cdev, unsigned int qdio_err,
for (sbal_no = 0; sbal_no < count; sbal_no++) {
sbal_idx = (first + sbal_no) % QDIO_MAX_BUFFERS_PER_Q;
/* go through all SBALEs of SBAL */
zfcp_fsf_reqid_check(adapter, sbal_idx);
zfcp_fsf_reqid_check(qdio, sbal_idx);
}
/*
* put range of SBALs back to response queue
* (including SBALs which have already been free before)
*/
zfcp_qdio_resp_put_back(adapter, count);
zfcp_qdio_resp_put_back(qdio, count);
}
/**
* zfcp_qdio_sbale_req - return ptr to SBALE of req_q for a struct zfcp_fsf_req
* @adapter: pointer to struct zfcp_adapter
* @qdio: pointer to struct zfcp_qdio
* @q_rec: pointer to struct zfcp_queue_rec
* Returns: pointer to qdio_buffer_element (SBALE) structure
*/
struct qdio_buffer_element *zfcp_qdio_sbale_req(struct zfcp_adapter *adapter,
struct qdio_buffer_element *zfcp_qdio_sbale_req(struct zfcp_qdio *qdio,
struct zfcp_queue_req *q_req)
{
return zfcp_qdio_sbale(&adapter->req_q, q_req->sbal_last, 0);
return zfcp_qdio_sbale(&qdio->req_q, q_req->sbal_last, 0);
}
/**
@ -180,30 +182,30 @@ struct qdio_buffer_element *zfcp_qdio_sbale_req(struct zfcp_adapter *adapter,
* @fsf_req: pointer to struct fsf_req
* Returns: pointer to qdio_buffer_element (SBALE) structure
*/
struct qdio_buffer_element *zfcp_qdio_sbale_curr(struct zfcp_adapter *adapter,
struct qdio_buffer_element *zfcp_qdio_sbale_curr(struct zfcp_qdio *qdio,
struct zfcp_queue_req *q_req)
{
return zfcp_qdio_sbale(&adapter->req_q, q_req->sbal_last,
return zfcp_qdio_sbale(&qdio->req_q, q_req->sbal_last,
q_req->sbale_curr);
}
static void zfcp_qdio_sbal_limit(struct zfcp_adapter *adapter,
static void zfcp_qdio_sbal_limit(struct zfcp_qdio *qdio,
struct zfcp_queue_req *q_req, int max_sbals)
{
int count = atomic_read(&adapter->req_q.count);
int count = atomic_read(&qdio->req_q.count);
count = min(count, max_sbals);
q_req->sbal_limit = (q_req->sbal_first + count - 1)
% QDIO_MAX_BUFFERS_PER_Q;
}
static struct qdio_buffer_element *
zfcp_qdio_sbal_chain(struct zfcp_adapter *adapter, struct zfcp_queue_req *q_req,
zfcp_qdio_sbal_chain(struct zfcp_qdio *qdio, struct zfcp_queue_req *q_req,
unsigned long sbtype)
{
struct qdio_buffer_element *sbale;
/* set last entry flag in current SBALE of current SBAL */
sbale = zfcp_qdio_sbale_curr(adapter, q_req);
sbale = zfcp_qdio_sbale_curr(qdio, q_req);
sbale->flags |= SBAL_FLAGS_LAST_ENTRY;
/* don't exceed last allowed SBAL */
@ -211,7 +213,7 @@ zfcp_qdio_sbal_chain(struct zfcp_adapter *adapter, struct zfcp_queue_req *q_req,
return NULL;
/* set chaining flag in first SBALE of current SBAL */
sbale = zfcp_qdio_sbale_req(adapter, q_req);
sbale = zfcp_qdio_sbale_req(qdio, q_req);
sbale->flags |= SBAL_FLAGS0_MORE_SBALS;
/* calculate index of next SBAL */
@ -225,26 +227,26 @@ zfcp_qdio_sbal_chain(struct zfcp_adapter *adapter, struct zfcp_queue_req *q_req,
q_req->sbale_curr = 0;
/* set storage-block type for new SBAL */
sbale = zfcp_qdio_sbale_curr(adapter, q_req);
sbale = zfcp_qdio_sbale_curr(qdio, q_req);
sbale->flags |= sbtype;
return sbale;
}
static struct qdio_buffer_element *
zfcp_qdio_sbale_next(struct zfcp_adapter *adapter, struct zfcp_queue_req *q_req,
zfcp_qdio_sbale_next(struct zfcp_qdio *qdio, struct zfcp_queue_req *q_req,
unsigned int sbtype)
{
if (q_req->sbale_curr == ZFCP_LAST_SBALE_PER_SBAL)
return zfcp_qdio_sbal_chain(adapter, q_req, sbtype);
return zfcp_qdio_sbal_chain(qdio, q_req, sbtype);
q_req->sbale_curr++;
return zfcp_qdio_sbale_curr(adapter, q_req);
return zfcp_qdio_sbale_curr(qdio, q_req);
}
static void zfcp_qdio_undo_sbals(struct zfcp_adapter *adapter,
static void zfcp_qdio_undo_sbals(struct zfcp_qdio *qdio,
struct zfcp_queue_req *q_req)
{
struct qdio_buffer **sbal = adapter->req_q.sbal;
struct qdio_buffer **sbal = qdio->req_q.sbal;
int first = q_req->sbal_first;
int last = q_req->sbal_last;
int count = (last - first + QDIO_MAX_BUFFERS_PER_Q) %
@ -252,7 +254,7 @@ static void zfcp_qdio_undo_sbals(struct zfcp_adapter *adapter,
zfcp_qdio_zero_sbals(sbal, first, count);
}
static int zfcp_qdio_fill_sbals(struct zfcp_adapter *adapter,
static int zfcp_qdio_fill_sbals(struct zfcp_qdio *qdio,
struct zfcp_queue_req *q_req,
unsigned int sbtype, void *start_addr,
unsigned int total_length)
@ -264,10 +266,10 @@ static int zfcp_qdio_fill_sbals(struct zfcp_adapter *adapter,
/* split segment up */
for (addr = start_addr, remaining = total_length; remaining > 0;
addr += length, remaining -= length) {
sbale = zfcp_qdio_sbale_next(adapter, q_req, sbtype);
sbale = zfcp_qdio_sbale_next(qdio, q_req, sbtype);
if (!sbale) {
atomic_inc(&adapter->qdio_outb_full);
zfcp_qdio_undo_sbals(adapter, q_req);
atomic_inc(&qdio->req_q_full);
zfcp_qdio_undo_sbals(qdio, q_req);
return -EINVAL;
}
@ -289,7 +291,7 @@ static int zfcp_qdio_fill_sbals(struct zfcp_adapter *adapter,
* @max_sbals: upper bound for number of SBALs to be used
* Returns: number of bytes, or error (negativ)
*/
int zfcp_qdio_sbals_from_sg(struct zfcp_adapter *adapter,
int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *qdio,
struct zfcp_queue_req *q_req,
unsigned long sbtype, struct scatterlist *sg,
int max_sbals)
@ -298,14 +300,14 @@ int zfcp_qdio_sbals_from_sg(struct zfcp_adapter *adapter,
int retval, bytes = 0;
/* figure out last allowed SBAL */
zfcp_qdio_sbal_limit(adapter, q_req, max_sbals);
zfcp_qdio_sbal_limit(qdio, q_req, max_sbals);
/* set storage-block type for this request */
sbale = zfcp_qdio_sbale_req(adapter, q_req);
sbale = zfcp_qdio_sbale_req(qdio, q_req);
sbale->flags |= sbtype;
for (; sg; sg = sg_next(sg)) {
retval = zfcp_qdio_fill_sbals(adapter, q_req, sbtype,
retval = zfcp_qdio_fill_sbals(qdio, q_req, sbtype,
sg_virt(sg), sg->length);
if (retval < 0)
return retval;
@ -313,7 +315,7 @@ int zfcp_qdio_sbals_from_sg(struct zfcp_adapter *adapter,
}
/* assume that no other SBALEs are to follow in the same SBAL */
sbale = zfcp_qdio_sbale_curr(adapter, q_req);
sbale = zfcp_qdio_sbale_curr(qdio, q_req);
sbale->flags |= SBAL_FLAGS_LAST_ENTRY;
return bytes;
@ -321,20 +323,22 @@ int zfcp_qdio_sbals_from_sg(struct zfcp_adapter *adapter,
/**
* zfcp_qdio_send - set PCI flag in first SBALE and send req to QDIO
* @fsf_req: pointer to struct zfcp_fsf_req
* @qdio: pointer to struct zfcp_qdio
* @q_req: pointer to struct zfcp_queue_req
* Returns: 0 on success, error otherwise
*/
int zfcp_qdio_send(struct zfcp_adapter *adapter, struct zfcp_queue_req *q_req)
int zfcp_qdio_send(struct zfcp_qdio *qdio, struct zfcp_queue_req *q_req)
{
struct zfcp_qdio_queue *req_q = &adapter->req_q;
struct zfcp_qdio_queue *req_q = &qdio->req_q;
int first = q_req->sbal_first;
int count = q_req->sbal_number;
int retval;
unsigned int qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
zfcp_qdio_account(adapter);
zfcp_qdio_account(qdio);
retval = do_QDIO(adapter->ccw_device, qdio_flags, 0, first, count);
retval = do_QDIO(qdio->adapter->ccw_device, qdio_flags, 0, first,
count);
if (unlikely(retval)) {
zfcp_qdio_zero_sbals(req_q->sbal, first, count);
return retval;
@ -347,63 +351,69 @@ int zfcp_qdio_send(struct zfcp_adapter *adapter, struct zfcp_queue_req *q_req)
return 0;
}
static void zfcp_qdio_setup_init_data(struct qdio_initialize *id,
struct zfcp_qdio *qdio)
{
id->cdev = qdio->adapter->ccw_device;
id->q_format = QDIO_ZFCP_QFMT;
memcpy(id->adapter_name, dev_name(&id->cdev->dev), 8);
ASCEBC(id->adapter_name, 8);
id->qib_param_field_format = 0;
id->qib_param_field = NULL;
id->input_slib_elements = NULL;
id->output_slib_elements = NULL;
id->no_input_qs = 1;
id->no_output_qs = 1;
id->input_handler = zfcp_qdio_int_resp;
id->output_handler = zfcp_qdio_int_req;
id->int_parm = (unsigned long) qdio;
id->flags = QDIO_INBOUND_0COPY_SBALS |
QDIO_OUTBOUND_0COPY_SBALS | QDIO_USE_OUTBOUND_PCIS;
id->input_sbal_addr_array = (void **) (qdio->resp_q.sbal);
id->output_sbal_addr_array = (void **) (qdio->req_q.sbal);
}
/**
* zfcp_qdio_allocate - allocate queue memory and initialize QDIO data
* @adapter: pointer to struct zfcp_adapter
* Returns: -ENOMEM on memory allocation error or return value from
* qdio_allocate
*/
int zfcp_qdio_allocate(struct zfcp_adapter *adapter)
int zfcp_qdio_allocate(struct zfcp_qdio *qdio, struct ccw_device *ccw_dev)
{
struct qdio_initialize *init_data;
struct qdio_initialize init_data;
if (zfcp_qdio_buffers_enqueue(adapter->req_q.sbal) ||
zfcp_qdio_buffers_enqueue(adapter->resp_q.sbal))
if (zfcp_qdio_buffers_enqueue(qdio->req_q.sbal) ||
zfcp_qdio_buffers_enqueue(qdio->resp_q.sbal))
return -ENOMEM;
init_data = &adapter->qdio_init_data;
zfcp_qdio_setup_init_data(&init_data, qdio);
init_data->cdev = adapter->ccw_device;
init_data->q_format = QDIO_ZFCP_QFMT;
memcpy(init_data->adapter_name, dev_name(&adapter->ccw_device->dev), 8);
ASCEBC(init_data->adapter_name, 8);
init_data->qib_param_field_format = 0;
init_data->qib_param_field = NULL;
init_data->input_slib_elements = NULL;
init_data->output_slib_elements = NULL;
init_data->no_input_qs = 1;
init_data->no_output_qs = 1;
init_data->input_handler = zfcp_qdio_int_resp;
init_data->output_handler = zfcp_qdio_int_req;
init_data->int_parm = (unsigned long) adapter;
init_data->flags = QDIO_INBOUND_0COPY_SBALS |
QDIO_OUTBOUND_0COPY_SBALS | QDIO_USE_OUTBOUND_PCIS;
init_data->input_sbal_addr_array =
(void **) (adapter->resp_q.sbal);
init_data->output_sbal_addr_array =
(void **) (adapter->req_q.sbal);
return qdio_allocate(init_data);
return qdio_allocate(&init_data);
}
/**
* zfcp_close_qdio - close qdio queues for an adapter
* @qdio: pointer to structure zfcp_qdio
*/
void zfcp_qdio_close(struct zfcp_adapter *adapter)
void zfcp_qdio_close(struct zfcp_qdio *qdio)
{
struct zfcp_qdio_queue *req_q;
int first, count;
if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP))
if (!(atomic_read(&qdio->adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP))
return;
/* clear QDIOUP flag, thus do_QDIO is not called during qdio_shutdown */
req_q = &adapter->req_q;
spin_lock_bh(&adapter->req_q_lock);
atomic_clear_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &adapter->status);
spin_unlock_bh(&adapter->req_q_lock);
req_q = &qdio->req_q;
spin_lock_bh(&qdio->req_q_lock);
atomic_clear_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &qdio->adapter->status);
spin_unlock_bh(&qdio->req_q_lock);
qdio_shutdown(adapter->ccw_device, QDIO_FLAG_CLEANUP_USING_CLEAR);
qdio_shutdown(qdio->adapter->ccw_device,
QDIO_FLAG_CLEANUP_USING_CLEAR);
/* cleanup used outbound sbals */
count = atomic_read(&req_q->count);
@ -414,50 +424,54 @@ void zfcp_qdio_close(struct zfcp_adapter *adapter)
}
req_q->first = 0;
atomic_set(&req_q->count, 0);
adapter->resp_q.first = 0;
atomic_set(&adapter->resp_q.count, 0);
qdio->resp_q.first = 0;
atomic_set(&qdio->resp_q.count, 0);
}
/**
* zfcp_qdio_open - prepare and initialize response queue
* @adapter: pointer to struct zfcp_adapter
* @qdio: pointer to struct zfcp_qdio
* Returns: 0 on success, otherwise -EIO
*/
int zfcp_qdio_open(struct zfcp_adapter *adapter)
int zfcp_qdio_open(struct zfcp_qdio *qdio)
{
struct qdio_buffer_element *sbale;
struct qdio_initialize init_data;
struct ccw_device *cdev = qdio->adapter->ccw_device;
int cc;
if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)
if (atomic_read(&qdio->adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)
return -EIO;
if (qdio_establish(&adapter->qdio_init_data))
zfcp_qdio_setup_init_data(&init_data, qdio);
if (qdio_establish(&init_data))
goto failed_establish;
if (qdio_activate(adapter->ccw_device))
if (qdio_activate(cdev))
goto failed_qdio;
for (cc = 0; cc < QDIO_MAX_BUFFERS_PER_Q; cc++) {
sbale = &(adapter->resp_q.sbal[cc]->element[0]);
sbale = &(qdio->resp_q.sbal[cc]->element[0]);
sbale->length = 0;
sbale->flags = SBAL_FLAGS_LAST_ENTRY;
sbale->addr = NULL;
}
if (do_QDIO(adapter->ccw_device, QDIO_FLAG_SYNC_INPUT, 0, 0,
if (do_QDIO(cdev, QDIO_FLAG_SYNC_INPUT, 0, 0,
QDIO_MAX_BUFFERS_PER_Q))
goto failed_qdio;
/* set index of first avalable SBALS / number of available SBALS */
adapter->req_q.first = 0;
atomic_set(&adapter->req_q.count, QDIO_MAX_BUFFERS_PER_Q);
qdio->req_q.first = 0;
atomic_set(&qdio->req_q.count, QDIO_MAX_BUFFERS_PER_Q);
return 0;
failed_qdio:
qdio_shutdown(adapter->ccw_device, QDIO_FLAG_CLEANUP_USING_CLEAR);
qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
failed_establish:
dev_err(&adapter->ccw_device->dev,
dev_err(&cdev->dev,
"Setting up the QDIO connection to the FCP adapter failed\n");
return -EIO;
}

6
drivers/s390/scsi/zfcp_scsi.c
View File

@ -225,7 +225,7 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
{
struct zfcp_unit *unit = scpnt->device->hostdata;
struct zfcp_adapter *adapter = unit->port->adapter;
struct zfcp_fsf_req *fsf_req;
struct zfcp_fsf_req *fsf_req = NULL;
int retval = SUCCESS;
int retry = 3;
@ -429,7 +429,7 @@ static struct fc_host_statistics *zfcp_get_fc_host_stats(struct Scsi_Host *host)
if (!data)
return NULL;
ret = zfcp_fsf_exchange_port_data_sync(adapter, data);
ret = zfcp_fsf_exchange_port_data_sync(adapter->qdio, data);
if (ret) {
kfree(data);
return NULL;
@ -458,7 +458,7 @@ static void zfcp_reset_fc_host_stats(struct Scsi_Host *shost)
if (!data)
return;
ret = zfcp_fsf_exchange_port_data_sync(adapter, data);
ret = zfcp_fsf_exchange_port_data_sync(adapter->qdio, data);
if (ret)
kfree(data);
else {

16
drivers/s390/scsi/zfcp_sysfs.c
View File

@ -425,7 +425,7 @@ static ssize_t zfcp_sysfs_adapter_util_show(struct device *dev,
if (!qtcb_port)
return -ENOMEM;
retval = zfcp_fsf_exchange_port_data_sync(adapter, qtcb_port);
retval = zfcp_fsf_exchange_port_data_sync(adapter->qdio, qtcb_port);
if (!retval)
retval = sprintf(buf, "%u %u %u\n", qtcb_port->cp_util,
qtcb_port->cb_util, qtcb_port->a_util);
@ -451,7 +451,7 @@ static int zfcp_sysfs_adapter_ex_config(struct device *dev,
if (!qtcb_config)
return -ENOMEM;
retval = zfcp_fsf_exchange_config_data_sync(adapter, qtcb_config);
retval = zfcp_fsf_exchange_config_data_sync(adapter->qdio, qtcb_config);
if (!retval)
*stat_inf = qtcb_config->stat_info;
@ -492,15 +492,15 @@ static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev,
char *buf)
{
struct Scsi_Host *scsi_host = class_to_shost(dev);
struct zfcp_adapter *adapter =
(struct zfcp_adapter *) scsi_host->hostdata[0];
struct zfcp_qdio *qdio =
((struct zfcp_adapter *) scsi_host->hostdata[0])->qdio;
u64 util;
spin_lock_bh(&adapter->qdio_stat_lock);
util = adapter->req_q_util;
spin_unlock_bh(&adapter->qdio_stat_lock);
spin_lock_bh(&qdio->stat_lock);
util = qdio->req_q_util;
spin_unlock_bh(&qdio->stat_lock);
return sprintf(buf, "%d %llu\n", atomic_read(&adapter->qdio_outb_full),
return sprintf(buf, "%d %llu\n", atomic_read(&qdio->req_q_full),
(unsigned long long)util);
}
static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL);