[SCSI] qla2xxx: Refactor qla data structures

Following changes have been made to the qla2xxx FC driver in
preparation for the multi- queue and future SR IOV hardware.

1. scsi_qla_host structure has been changed to contain scsi host
   specific data only.

2. A new structure, qla_hw_data is created to contain HBA specific
   hardware data.

3. Request and response IO specific data strucures are created.

4. The global list of fcports for the hba is not maintained anymore,
   instead a fcport list is construted on per scsi_qla_host.

Signed-of-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 8 insertions, 5 deletions

diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 753dbe6cce6e..c0cc686d6cc3 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -72,7 +72,10 @@ extern int qla2x00_post_hwe_work(struct scsi_qla_host *, uint16_t , uint16_t,
     uint16_t, uint16_t);
 
 extern void qla2x00_abort_fcport_cmds(fc_port_t *);
-
+extern struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *,
+        struct qla_hw_data *);
+extern void qla2x00_free_host(struct scsi_qla_host *);
+extern void qla2x00_relogin(struct scsi_qla_host *);
 /*
  * Global Functions in qla_mid.c source file.
  */
@@ -105,10 +108,10 @@ extern struct fw_blob *qla2x00_request_firmware(scsi_qla_host_t *);
 
 extern int qla2x00_wait_for_hba_online(scsi_qla_host_t *);
 
-extern void qla2xxx_wake_dpc(scsi_qla_host_t *);
-extern void qla2x00_alert_all_vps(scsi_qla_host_t *, uint16_t *);
+extern void qla2xxx_wake_dpc(struct scsi_qla_host *);
+extern void qla2x00_alert_all_vps(struct qla_hw_data *, uint16_t *);
 extern void qla2x00_async_event(scsi_qla_host_t *, uint16_t *);
-extern void qla2x00_vp_abort_isp(scsi_qla_host_t *);
+extern int  qla2x00_vp_abort_isp(scsi_qla_host_t *);
 
 /*
  * Global Function Prototypes in qla_iocb.c source file.
@@ -267,7 +270,7 @@ extern irqreturn_t qla24xx_intr_handler(int, void *);
 extern void qla2x00_process_response_queue(struct scsi_qla_host *);
 extern void qla24xx_process_response_queue(struct scsi_qla_host *);
 
-extern int qla2x00_request_irqs(scsi_qla_host_t *);
+extern int qla2x00_request_irqs(struct qla_hw_data *);
 extern void qla2x00_free_irqs(scsi_qla_host_t *);
 
 /*