From: Swen Schillig <swen@xxxxxxxxxxxx>
Extract independent data structures and introduce common _setup and
_destroy routines for QDIO and Fibre Channel related data structures
Signed-off-by: Swen Schillig <swen@xxxxxxxxxxxx>
Signed-off-by: Christof Schmitt <christof.schmitt@xxxxxxxxxx>
---
drivers/s390/scsi/zfcp_aux.c | 42 ++++++++-----------------
drivers/s390/scsi/zfcp_ext.h | 7 ++--
drivers/s390/scsi/zfcp_fc.c | 36 +++++++++++++++-------
drivers/s390/scsi/zfcp_qdio.c | 68 ++++++++++++++++++++++++++++--------------
4 files changed, 89 insertions(+), 64 deletions(-)
--- a/drivers/s390/scsi/zfcp_aux.c 2009-08-17 11:29:38.000000000 +0200
+++ b/drivers/s390/scsi/zfcp_aux.c 2009-08-17 11:29:45.000000000 +0200
@@ -506,30 +506,18 @@ int zfcp_adapter_enqueue(struct ccw_devi
if (!adapter)
return -ENOMEM;
- adapter->gs = kzalloc(sizeof(struct zfcp_wka_ports), GFP_KERNEL);
- if (!adapter->gs) {
- kfree(adapter);
- 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->qdio, ccw_device))
- goto qdio_allocate_failed;
+ if (zfcp_qdio_setup(adapter))
+ goto qdio_failed;
if (zfcp_allocate_low_mem_buffers(adapter))
- goto failed_low_mem_buffers;
+ goto low_mem_buffers_failed;
if (zfcp_reqlist_alloc(adapter))
- goto failed_low_mem_buffers;
+ goto low_mem_buffers_failed;
if (zfcp_dbf_adapter_register(adapter))
goto debug_register_failed;
@@ -537,6 +525,9 @@ int zfcp_adapter_enqueue(struct ccw_devi
if (zfcp_setup_adapter_work_queue(adapter))
goto work_queue_failed;
+ if (zfcp_fc_gs_setup(adapter))
+ goto generic_services_failed;
+
init_waitqueue_head(&adapter->remove_wq);
init_waitqueue_head(&adapter->erp_thread_wqh);
init_waitqueue_head(&adapter->erp_done_wqh);
@@ -547,9 +538,6 @@ int zfcp_adapter_enqueue(struct ccw_devi
spin_lock_init(&adapter->req_list_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);
@@ -570,24 +558,23 @@ int zfcp_adapter_enqueue(struct ccw_devi
goto sysfs_failed;
atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
- zfcp_fc_wka_ports_init(adapter);
if (!zfcp_adapter_scsi_register(adapter))
return 0;
sysfs_failed:
+ zfcp_fc_gs_destroy(adapter);
+generic_services_failed:
zfcp_destroy_adapter_work_queue(adapter);
work_queue_failed:
zfcp_dbf_adapter_unregister(adapter->dbf);
debug_register_failed:
dev_set_drvdata(&ccw_device->dev, NULL);
kfree(adapter->req_list);
-failed_low_mem_buffers:
+low_mem_buffers_failed:
zfcp_free_low_mem_buffers(adapter);
-qdio_allocate_failed:
- zfcp_qdio_free(adapter->qdio);
- kfree(adapter->qdio);
-qdio_mem_failed:
+qdio_failed:
+ zfcp_qdio_destroy(adapter->qdio);
kfree(adapter);
return -ENOMEM;
}
@@ -616,15 +603,14 @@ void zfcp_adapter_dequeue(struct zfcp_ad
if (!retval)
return;
+ zfcp_fc_gs_destroy(adapter);
zfcp_destroy_adapter_work_queue(adapter);
zfcp_dbf_adapter_unregister(adapter->dbf);
- zfcp_qdio_free(adapter->qdio);
zfcp_free_low_mem_buffers(adapter);
+ zfcp_qdio_destroy(adapter->qdio);
kfree(adapter->req_list);
kfree(adapter->fc_stats);
kfree(adapter->stats_reset_data);
- kfree(adapter->gs);
- kfree(adapter->qdio);
kfree(adapter);
}
--- a/drivers/s390/scsi/zfcp_ext.h 2009-08-17 11:29:38.000000000 +0200
+++ b/drivers/s390/scsi/zfcp_ext.h 2009-08-17 11:29:45.000000000 +0200
@@ -100,7 +100,8 @@ extern void zfcp_fc_plogi_evaluate(struc
extern void zfcp_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_init(struct zfcp_adapter *);
+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 *);
extern int zfcp_fc_execute_ct_fc_job(struct fc_bsg_job *);
@@ -134,8 +135,8 @@ extern struct zfcp_fsf_req *zfcp_fsf_abo
extern void zfcp_fsf_reqid_check(struct zfcp_qdio *, int);
/* zfcp_qdio.c */
-extern int zfcp_qdio_allocate(struct zfcp_qdio *, struct ccw_device *);
-extern void zfcp_qdio_free(struct zfcp_qdio *);
+extern int zfcp_qdio_setup(struct zfcp_adapter *);
+extern void zfcp_qdio_destroy(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_qdio *, struct zfcp_queue_req *);
--- a/drivers/s390/scsi/zfcp_fc.c 2009-08-17 11:29:38.000000000 +0200
+++ b/drivers/s390/scsi/zfcp_fc.c 2009-08-17 11:29:45.000000000 +0200
@@ -141,17 +141,6 @@ void zfcp_fc_wka_ports_force_offline(str
zfcp_fc_wka_port_force_offline(&gs->ks);
}
-void zfcp_fc_wka_ports_init(struct zfcp_adapter *adapter)
-{
- struct zfcp_wka_ports *gs = adapter->gs;
-
- zfcp_fc_wka_port_init(&gs->ms, FC_FID_MGMT_SERV, adapter);
- zfcp_fc_wka_port_init(&gs->ts, FC_FID_TIME_SERV, adapter);
- zfcp_fc_wka_port_init(&gs->ds, FC_FID_DIR_SERV, adapter);
- zfcp_fc_wka_port_init(&gs->as, FC_FID_ALIASES, adapter);
- zfcp_fc_wka_port_init(&gs->ks, FC_FID_SEC_KEY, adapter);
-}
-
static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
struct fcp_rscn_element *elem)
{
@@ -870,3 +859,28 @@ int zfcp_fc_execute_ct_fc_job(struct fc_
}
return ret;
}
+
+int zfcp_fc_gs_setup(struct zfcp_adapter *adapter)
+{
+ struct zfcp_wka_ports *wka_ports;
+
+ wka_ports = kzalloc(sizeof(struct zfcp_wka_ports), GFP_KERNEL);
+ if (!wka_ports)
+ return -ENOMEM;
+
+ adapter->gs = wka_ports;
+ zfcp_fc_wka_port_init(&wka_ports->ms, FC_FID_MGMT_SERV, 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;
+}
+
+void zfcp_fc_gs_destroy(struct zfcp_adapter *adapter)
+{
+ kfree(adapter->gs);
+ adapter->gs = NULL;
+}
+
--- a/drivers/s390/scsi/zfcp_qdio.c 2009-08-17 11:29:38.000000000 +0200
+++ b/drivers/s390/scsi/zfcp_qdio.c 2009-08-17 11:29:45.000000000 +0200
@@ -34,27 +34,6 @@ zfcp_qdio_sbale(struct zfcp_qdio_queue *
return &q->sbal[sbal_idx]->element[sbale_idx];
}
-/**
- * zfcp_qdio_free - free memory used by request- and resposne queue
- * @qdio: pointer to the zfcp_qdio structure
- */
-void zfcp_qdio_free(struct zfcp_qdio *qdio)
-{
- struct qdio_buffer **sbal_req, **sbal_resp;
- int p;
-
- if (qdio->adapter->ccw_device)
- qdio_free(qdio->adapter->ccw_device);
-
- 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]);
- free_page((unsigned long) sbal_resp[p]);
- }
-}
-
static void zfcp_qdio_handler_error(struct zfcp_qdio *qdio, char *id)
{
struct zfcp_adapter *adapter = qdio->adapter;
@@ -383,7 +362,7 @@ static void zfcp_qdio_setup_init_data(st
* Returns: -ENOMEM on memory allocation error or return value from
* qdio_allocate
*/
-int zfcp_qdio_allocate(struct zfcp_qdio *qdio, struct ccw_device *ccw_dev)
+static int zfcp_qdio_allocate(struct zfcp_qdio *qdio)
{
struct qdio_initialize init_data;
@@ -477,3 +456,48 @@ failed_establish:
"Setting up the QDIO connection to the FCP adapter failed\n");
return -EIO;
}
+
+void zfcp_qdio_destroy(struct zfcp_qdio *qdio)
+{
+ struct qdio_buffer **sbal_req, **sbal_resp;
+ int p;
+
+ if (!qdio)
+ return;
+
+ if (qdio->adapter->ccw_device)
+ qdio_free(qdio->adapter->ccw_device);
+
+ 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]);
+ free_page((unsigned long) sbal_resp[p]);
+ }
+
+ kfree(qdio);
+}
+
+int zfcp_qdio_setup(struct zfcp_adapter *adapter)
+{
+ struct zfcp_qdio *qdio;
+
+ qdio = kzalloc(sizeof(struct zfcp_qdio), GFP_KERNEL);
+ if (!qdio)
+ return -ENOMEM;
+
+ qdio->adapter = adapter;
+
+ if (zfcp_qdio_allocate(qdio)) {
+ zfcp_qdio_destroy(qdio);
+ return -ENOMEM;
+ }
+
+ spin_lock_init(&qdio->req_q_lock);
+ spin_lock_init(&qdio->stat_lock);
+
+ adapter->qdio = qdio;
+ return 0;
+}
+
--
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