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authorSwen Schillig <swen@vnet.ibm.com>2009-08-18 15:43:18 +0200
committerJames Bottomley <James.Bottomley@suse.de>2009-09-05 08:49:24 -0500
commit42428f747a8a0db9c6de03e105932316defad65d (patch)
tree84cd4b28678c94e5c6780517f89e803121cd73a7 /drivers/s390/scsi/zfcp_def.h
parent4544683a4b1d4e65ccca8c736bac56a195a5206b (diff)
downloadop-kernel-dev-42428f747a8a0db9c6de03e105932316defad65d.zip
op-kernel-dev-42428f747a8a0db9c6de03e105932316defad65d.tar.gz
[SCSI] zfcp: Separate qdio attributes from zfcp_fsf_req
Split all qdio related attributes out of zfcp_fsf_req and put it in new 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>
Diffstat (limited to 'drivers/s390/scsi/zfcp_def.h')
-rw-r--r--drivers/s390/scsi/zfcp_def.h84
1 files changed, 56 insertions, 28 deletions
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 2715a10..a04bdfd 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -529,36 +529,64 @@ struct zfcp_unit {
struct work_struct scsi_work;
};
-/* FSF request */
+/**
+ * struct zfcp_queue_req - queue related values for a request
+ * @sbal_number: number of free SBALs
+ * @sbal_first: first SBAL for this request
+ * @sbal_last: last SBAL for this request
+ * @sbal_limit: last possible SBAL for this request
+ * @sbale_curr: current SBALE at creation of this request
+ * @sbal_response: SBAL used in interrupt
+ * @qdio_outb_usage: usage of outbound queue
+ * @qdio_inb_usage: usage of inbound queue
+ */
+struct zfcp_queue_req {
+ u8 sbal_number;
+ u8 sbal_first;
+ u8 sbal_last;
+ u8 sbal_limit;
+ u8 sbale_curr;
+ u8 sbal_response;
+ u16 qdio_outb_usage;
+ u16 qdio_inb_usage;
+};
+
+/**
+ * struct zfcp_fsf_req - basic FSF request structure
+ * @list: list of FSF requests
+ * @req_id: unique request ID
+ * @adapter: adapter this request belongs to
+ * @queue_req: queue related values
+ * @completion: used to signal the completion of the request
+ * @status: status of the request
+ * @fsf_command: FSF command issued
+ * @qtcb: associated QTCB
+ * @seq_no: sequence number of this request
+ * @data: private data
+ * @timer: timer data of this request
+ * @erp_action: reference to erp action if request issued on behalf of ERP
+ * @pool: reference to memory pool if used for this request
+ * @issued: time when request was send (STCK)
+ * @unit: reference to unit if this request is a SCSI request
+ * @handler: handler which should be called to process response
+ */
struct zfcp_fsf_req {
- struct list_head list; /* list of FSF requests */
- unsigned long req_id; /* unique request ID */
- struct zfcp_adapter *adapter; /* adapter request belongs to */
- u8 sbal_number; /* nr of SBALs free for use */
- u8 sbal_first; /* first SBAL for this request */
- u8 sbal_last; /* last SBAL for this request */
- u8 sbal_limit; /* last possible SBAL for
- this reuest */
- u8 sbale_curr; /* current SBALE during creation
- of request */
- u8 sbal_response; /* SBAL used in interrupt */
- struct completion completion; /* can be used by a routine
- to wait for completion */
- u32 status; /* status of this request */
- u32 fsf_command; /* FSF Command copy */
- struct fsf_qtcb *qtcb; /* address of associated QTCB */
- u32 seq_no; /* Sequence number 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 */
- mempool_t *pool; /* used if request was alloacted
- from emergency pool */
- unsigned long long issued; /* request sent time (STCK) */
- struct zfcp_unit *unit;
+ struct list_head list;
+ unsigned long req_id;
+ struct zfcp_adapter *adapter;
+ struct zfcp_queue_req queue_req;
+ struct completion completion;
+ u32 status;
+ u32 fsf_command;
+ struct fsf_qtcb *qtcb;
+ u32 seq_no;
+ void *data;
+ struct timer_list timer;
+ struct zfcp_erp_action *erp_action;
+ mempool_t *pool;
+ unsigned long long issued;
+ struct zfcp_unit *unit;
void (*handler)(struct zfcp_fsf_req *);
- u16 qdio_outb_usage;/* usage of outbound queue */
- u16 qdio_inb_usage; /* usage of inbound queue */
};
/* driver data */
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