Commit 2abbe866 authored by Andreas Herrmann's avatar Andreas Herrmann Committed by James Bottomley

[SCSI] zfcp: introduce struct timer_list in struct zfcp_fsf_req

This instance will be used whenever a timer is needed for
a request by zfcp.
Signed-off-by: default avatarAndreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 4eff4a36
......@@ -1135,9 +1135,6 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
/* initialize lock of associated request queue */
rwlock_init(&adapter->request_queue.queue_lock);
/* intitialise SCSI ER timer */
init_timer(&adapter->scsi_er_timer);
/* mark adapter unusable as long as sysfs registration is not complete */
atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
......@@ -1653,7 +1650,6 @@ zfcp_ns_gid_pn_request(struct zfcp_erp_action *erp_action)
gid_pn->ct.handler = zfcp_ns_gid_pn_handler;
gid_pn->ct.handler_data = (unsigned long) gid_pn;
gid_pn->ct.timeout = ZFCP_NS_GID_PN_TIMEOUT;
gid_pn->ct.timer = &erp_action->timer;
gid_pn->port = erp_action->port;
ret = zfcp_fsf_send_ct(&gid_pn->ct, adapter->pool.fsf_req_erp,
......
......@@ -137,7 +137,7 @@ zfcp_address_to_sg(void *address, struct scatterlist *list)
#define ZFCP_EXCHANGE_CONFIG_DATA_RETRIES 7
/* timeout value for "default timer" for fsf requests */
#define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ);
#define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ)
/*************** FIBRE CHANNEL PROTOCOL SPECIFIC DEFINES ********************/
......@@ -779,7 +779,6 @@ typedef void (*zfcp_send_ct_handler_t)(unsigned long);
* @handler_data: data passed to handler function
* @pool: pointer to memory pool for ct request structure
* @timeout: FSF timeout for this request
* @timer: timer (e.g. for request initiated by erp)
* @completion: completion for synchronization purposes
* @status: used to pass error status to calling function
*/
......@@ -793,7 +792,6 @@ struct zfcp_send_ct {
unsigned long handler_data;
mempool_t *pool;
int timeout;
struct timer_list *timer;
struct completion *completion;
int status;
};
......@@ -821,7 +819,6 @@ typedef void (*zfcp_send_els_handler_t)(unsigned long);
* @resp_count: number of elements in response scatter-gather list
* @handler: handler function (called for response to the request)
* @handler_data: data passed to handler function
* @timer: timer (e.g. for request initiated by erp)
* @completion: completion for synchronization purposes
* @ls_code: hex code of ELS command
* @status: used to pass error status to calling function
......@@ -836,7 +833,6 @@ struct zfcp_send_els {
unsigned int resp_count;
zfcp_send_els_handler_t handler;
unsigned long handler_data;
struct timer_list *timer;
struct completion *completion;
int ls_code;
int status;
......@@ -886,7 +882,6 @@ struct zfcp_adapter {
struct list_head port_remove_lh; /* head of ports to be
removed */
u32 ports; /* number of remote ports */
struct timer_list scsi_er_timer; /* SCSI err recovery watch */
atomic_t reqs_active; /* # active FSF reqs */
unsigned long req_no; /* unique FSF req number */
struct list_head *req_list; /* list of pending reqs */
......@@ -1003,6 +998,7 @@ struct zfcp_fsf_req {
struct fsf_qtcb *qtcb; /* address of associated QTCB */
u32 seq_no; /* Sequence number of request */
unsigned long 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
......
This diff is collapsed.
......@@ -87,8 +87,8 @@ extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *,
struct fsf_qtcb_bottom_port *);
extern int zfcp_fsf_control_file(struct zfcp_adapter *, struct zfcp_fsf_req **,
u32, u32, struct zfcp_sg_list *);
extern void zfcp_fsf_request_timeout_handler(unsigned long);
extern void zfcp_fsf_scsi_er_timeout_handler(unsigned long);
extern void zfcp_fsf_start_timer(struct zfcp_fsf_req *, unsigned long);
extern void zfcp_erp_start_timer(struct zfcp_fsf_req *);
extern int zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
extern int zfcp_fsf_status_read(struct zfcp_adapter *, int);
extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *,
......@@ -98,8 +98,7 @@ extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *,
extern int zfcp_fsf_send_els(struct zfcp_send_els *);
extern int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *,
struct zfcp_unit *,
struct scsi_cmnd *,
struct timer_list*, int);
struct scsi_cmnd *, int, int);
extern int zfcp_fsf_req_complete(struct zfcp_fsf_req *);
extern void zfcp_fsf_incoming_els(struct zfcp_fsf_req *);
extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);
......@@ -123,13 +122,11 @@ extern char *zfcp_get_fcp_rsp_info_ptr(struct fcp_rsp_iu *);
extern void set_host_byte(u32 *, char);
extern void set_driver_byte(u32 *, char);
extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *);
extern void zfcp_fsf_start_scsi_er_timer(struct zfcp_adapter *);
extern fcp_dl_t zfcp_get_fcp_dl(struct fcp_cmnd_iu *);
extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *,
struct scsi_cmnd *, struct timer_list *);
extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *,
struct timer_list *);
struct scsi_cmnd *, int);
extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, int);
extern struct fc_function_template zfcp_transport_functions;
/******************************** ERP ****************************************/
......
This diff is collapsed.
......@@ -231,7 +231,7 @@ zfcp_scsi_command_fail(struct scsi_cmnd *scpnt, int result)
*/
int
zfcp_scsi_command_async(struct zfcp_adapter *adapter, struct zfcp_unit *unit,
struct scsi_cmnd *scpnt, struct timer_list *timer)
struct scsi_cmnd *scpnt, int use_timer)
{
int tmp;
int retval;
......@@ -267,7 +267,7 @@ zfcp_scsi_command_async(struct zfcp_adapter *adapter, struct zfcp_unit *unit,
goto out;
}
tmp = zfcp_fsf_send_fcp_command_task(adapter, unit, scpnt, timer,
tmp = zfcp_fsf_send_fcp_command_task(adapter, unit, scpnt, use_timer,
ZFCP_REQ_AUTO_CLEANUP);
if (unlikely(tmp < 0)) {
......@@ -291,21 +291,22 @@ zfcp_scsi_command_sync_handler(struct scsi_cmnd *scpnt)
* zfcp_scsi_command_sync - send a SCSI command and wait for completion
* @unit: unit where command is sent to
* @scpnt: scsi command to be sent
* @timer: timer to be started if request is successfully initiated
* @use_timer: indicates whether timer should be setup or not
* Return: 0
*
* Errors are indicated in scpnt->result
*/
int
zfcp_scsi_command_sync(struct zfcp_unit *unit, struct scsi_cmnd *scpnt,
struct timer_list *timer)
int use_timer)
{
int ret;
DECLARE_COMPLETION(wait);
scpnt->SCp.ptr = (void *) &wait; /* silent re-use */
scpnt->scsi_done = zfcp_scsi_command_sync_handler;
ret = zfcp_scsi_command_async(unit->port->adapter, unit, scpnt, timer);
ret = zfcp_scsi_command_async(unit->port->adapter, unit, scpnt,
use_timer);
if (ret == 0)
wait_for_completion(&wait);
......@@ -341,7 +342,7 @@ zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt,
adapter = (struct zfcp_adapter *) scpnt->device->host->hostdata[0];
unit = (struct zfcp_unit *) scpnt->device->hostdata;
return zfcp_scsi_command_async(adapter, unit, scpnt, NULL);
return zfcp_scsi_command_async(adapter, unit, scpnt, 0);
}
static struct zfcp_unit *
......@@ -538,8 +539,6 @@ zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags,
/**
* zfcp_scsi_eh_host_reset_handler - handler for host and bus reset
*
* If ERP is already running it will be stopped.
*/
int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
{
......@@ -638,16 +637,6 @@ zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter)
return;
}
void
zfcp_fsf_start_scsi_er_timer(struct zfcp_adapter *adapter)
{
adapter->scsi_er_timer.function = zfcp_fsf_scsi_er_timeout_handler;
adapter->scsi_er_timer.data = (unsigned long) adapter;
adapter->scsi_er_timer.expires = jiffies + ZFCP_SCSI_ER_TIMEOUT;
add_timer(&adapter->scsi_er_timer);
}
/*
* Support functions for FC transport class
*/
......
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