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Commit c41f8cbd authored by Swen Schillig's avatar Swen Schillig Committed by James Bottomley
Browse files

[SCSI] zfcp: zfcp_fsf cleanup. 



Code cleanup for the zfcp_fsf.c file.

Signed-off-by: default avatarSwen Schillig <swen@vnet.ibm.com>
Signed-off-by: default avatarChristof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent 60221920

drivers/s390/scsi/zfcp_aux.c

+2 −2
Original line number Diff line number Diff line
@@ -433,7 +433,7 @@ static void zfcp_dummy_release(struct device *dev) 
int zfcp_status_read_refill(struct zfcp_adapter *adapter)

{

	while (atomic_read(&adapter->stat_miss) > 0)

		if (zfcp_fsf_status_read(adapter, ZFCP_WAIT_FOR_SBAL)) {

		if (zfcp_fsf_status_read(adapter)) {

			if (atomic_read(&adapter->stat_miss) >= 16) {

				zfcp_erp_adapter_reopen(adapter, 0, 103, NULL);

				return 1;
@@ -518,10 +518,10 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device) 
	spin_lock_init(&adapter->san_dbf_lock);

	spin_lock_init(&adapter->scsi_dbf_lock);

	spin_lock_init(&adapter->rec_dbf_lock);

	spin_lock_init(&adapter->req_q.lock);



	rwlock_init(&adapter->erp_lock);

	rwlock_init(&adapter->abort_lock);

	rwlock_init(&adapter->req_q.lock);



	sema_init(&adapter->erp_ready_sem, 0);

drivers/s390/scsi/zfcp_dbf.c

+1 −1
Original line number Diff line number Diff line
@@ -961,7 +961,7 @@ void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *fsf_req) 


	zfcp_san_dbf_event_els("iels", 1, fsf_req, buf->d_id,

			       fc_host_port_id(adapter->scsi_host),

			       *(u8 *)buf->payload, (void *)buf->payload,

			       buf->payload.data[0], (void *)buf->payload.data,

			       length);

}

drivers/s390/scsi/zfcp_def.h

+4 −27
Original line number Diff line number Diff line
@@ -76,11 +76,6 @@ zfcp_address_to_sg(void *address, struct scatterlist *list, unsigned int size) 
#define ZFCP_DEVICE_MODEL       0x03

#define ZFCP_DEVICE_MODEL_PRIV	0x04



/* allow as many chained SBALs as are supported by hardware */

#define ZFCP_MAX_SBALS_PER_REQ		FSF_MAX_SBALS_PER_REQ

#define ZFCP_MAX_SBALS_PER_CT_REQ	FSF_MAX_SBALS_PER_REQ

#define ZFCP_MAX_SBALS_PER_ELS_REQ	FSF_MAX_SBALS_PER_ELS_REQ



/* DMQ bug workaround: don't use last SBALE */

#define ZFCP_MAX_SBALES_PER_SBAL	(QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
@@ -89,21 +84,17 @@ zfcp_address_to_sg(void *address, struct scatterlist *list, unsigned int size) 


/* max. number of (data buffer) SBALEs in largest SBAL chain */

#define ZFCP_MAX_SBALES_PER_REQ		\

	(ZFCP_MAX_SBALS_PER_REQ * ZFCP_MAX_SBALES_PER_SBAL - 2)

	(FSF_MAX_SBALS_PER_REQ * ZFCP_MAX_SBALES_PER_SBAL - 2)

        /* request ID + QTCB in SBALE 0 + 1 of first SBAL in chain */



#define ZFCP_MAX_SECTORS (ZFCP_MAX_SBALES_PER_REQ * 8)

        /* max. number of (data buffer) SBALEs in largest SBAL chain

           multiplied with number of sectors per 4k block */



#define ZFCP_SBAL_TIMEOUT               (5*HZ)



#define ZFCP_TYPE2_RECOVERY_TIME        8	/* seconds */



/********************* FSF SPECIFIC DEFINES *********************************/



#define ZFCP_ULP_INFO_VERSION                   26

#define ZFCP_QTCB_VERSION	FSF_QTCB_CURRENT_VERSION

/* ATTENTION: value must not be used by hardware */

#define FSF_QTCB_UNSOLICITED_STATUS		0x6305
@@ -121,8 +112,6 @@ typedef unsigned long long fcp_lun_t; 
/* data length field may be at variable position in FCP-2 FCP_CMND IU */

typedef unsigned int       fcp_dl_t;



#define ZFCP_FC_SERVICE_CLASS_DEFAULT	FSF_CLASS_3



/* timeout for name-server lookup (in seconds) */

#define ZFCP_NS_GID_PN_TIMEOUT		10
@@ -228,7 +217,6 @@ struct fcp_logo { 
 * FC-FS stuff

 */

#define R_A_TOV				10 /* seconds */

#define ZFCP_ELS_TIMEOUT		(2 * R_A_TOV)



#define ZFCP_LS_RLS			0x0f

#define ZFCP_LS_ADISC			0x52
@@ -521,7 +509,7 @@ struct zfcp_qdio_queue { 
						 in queue (free_count>0) */

	atomic_t           count;	      /* number of free buffers

						 in queue */

	rwlock_t	   lock;	      /* lock for operations on queue */

	spinlock_t	   lock;	      /* lock for operations on queue */

	int                pci_batch;	      /* SBALs since PCI indication

						 was last set */

};
@@ -686,7 +674,7 @@ struct zfcp_fsf_req { 
	u32		       fsf_command;    /* FSF Command copy */

	struct fsf_qtcb	       *qtcb;	       /* address of associated QTCB */

	u32		       seq_no;         /* Sequence number of request */

	unsigned long	       data;           /* private data 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 */
@@ -694,10 +682,9 @@ struct zfcp_fsf_req { 
						  from emergency pool */

	unsigned long long     issued;         /* request sent time (STCK) */

	struct zfcp_unit       *unit;

	void			(*handler)(struct zfcp_fsf_req *);

};



typedef void zfcp_fsf_req_handler_t(struct zfcp_fsf_req*);



/* driver data */

struct zfcp_data {

	struct scsi_host_template scsi_host_template;
@@ -730,7 +717,6 @@ struct zfcp_fsf_req_qtcb { 
/********************** ZFCP SPECIFIC DEFINES ********************************/



#define ZFCP_REQ_AUTO_CLEANUP	0x00000002

#define ZFCP_WAIT_FOR_SBAL	0x00000004

#define ZFCP_REQ_NO_QTCB	0x00000008



#define ZFCP_SET                0x00000100
@@ -753,15 +739,6 @@ static inline int zfcp_reqlist_hash(unsigned long req_id) 
	return req_id % REQUEST_LIST_SIZE;

}



static inline void zfcp_reqlist_add(struct zfcp_adapter *adapter,

				    struct zfcp_fsf_req *fsf_req)

{

	unsigned int idx;



	idx = zfcp_reqlist_hash(fsf_req->req_id);

	list_add_tail(&fsf_req->list, &adapter->req_list[idx]);

}



static inline void zfcp_reqlist_remove(struct zfcp_adapter *adapter,

				       struct zfcp_fsf_req *fsf_req)

{

drivers/s390/scsi/zfcp_ext.h

+5 −7
Original line number Diff line number Diff line
@@ -70,21 +70,19 @@ extern struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 
extern void zfcp_fsf_start_timer(struct zfcp_fsf_req *, unsigned long);

extern void zfcp_erp_start_timer(struct zfcp_fsf_req *);

extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);

extern int  zfcp_fsf_status_read(struct zfcp_adapter *, int);

extern int  zfcp_fsf_status_read(struct zfcp_adapter *);

extern int zfcp_status_read_refill(struct zfcp_adapter *adapter);

extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *,

			       unsigned long *, struct zfcp_fsf_req **)

	__acquires(adapter->req_q.lock);

extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *,

			    struct zfcp_erp_action *);

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 *, int, int);

extern int  zfcp_fsf_req_complete(struct zfcp_fsf_req *);

extern void zfcp_fsf_req_complete(struct zfcp_fsf_req *);

extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);

extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management(

	struct zfcp_adapter *, struct zfcp_unit *, u8, int);

extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *,

						     struct zfcp_unit *, u8,

						     int);

extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(

	unsigned long, struct zfcp_adapter *, struct zfcp_unit *, int);

drivers/s390/scsi/zfcp_fc.c

+6 −5
Original line number Diff line number Diff line
@@ -83,8 +83,8 @@ static void zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req) 
	u16 no_entries;

	u32 range_mask;



	fcp_rscn_head = (struct fcp_rscn_head *) status_buffer->payload;

	fcp_rscn_element = (struct fcp_rscn_element *) status_buffer->payload;

	fcp_rscn_head = (struct fcp_rscn_head *) status_buffer->payload.data;

	fcp_rscn_element = (struct fcp_rscn_element *) fcp_rscn_head;



	/* see FC-FS */

	no_entries = fcp_rscn_head->payload_len /
@@ -135,7 +135,7 @@ static void zfcp_fc_incoming_plogi(struct zfcp_fsf_req *req) 
	struct fsf_status_read_buffer *status_buffer =

		(struct fsf_status_read_buffer *)req->data;

	struct fsf_plogi *els_plogi =

		(struct fsf_plogi *) status_buffer->payload;

		(struct fsf_plogi *) status_buffer->payload.data;



	zfcp_fc_incoming_wwpn(req, els_plogi->serv_param.wwpn);

}
@@ -144,7 +144,8 @@ static void zfcp_fc_incoming_logo(struct zfcp_fsf_req *req) 
{

	struct fsf_status_read_buffer *status_buffer =

		(struct fsf_status_read_buffer *)req->data;

	struct fcp_logo *els_logo = (struct fcp_logo *) status_buffer->payload;

	struct fcp_logo *els_logo =

		(struct fcp_logo *) status_buffer->payload.data;



	zfcp_fc_incoming_wwpn(req, els_logo->nport_wwpn);

}
@@ -157,7 +158,7 @@ void zfcp_fc_incoming_els(struct zfcp_fsf_req *fsf_req) 
{

	struct fsf_status_read_buffer *status_buffer =

		(struct fsf_status_read_buffer *) fsf_req->data;

	unsigned int els_type = status_buffer->payload[0];

	unsigned int els_type = status_buffer->payload.data[0];



	zfcp_san_dbf_event_incoming_els(fsf_req);

	if (els_type == LS_PLOGI)