[SCSI] bfa: Driver and BSG enhancements.

- Added a new module parameter max_xfer_size to
  set the max_sectors in the scsi_host template.
- Added logic to handle request_irq() failure so
  that msix vector resource is de-allocated immediately
  when failure happens.
- BSG enhancements to collect vHBA releated info and port log.
- Removed the workaround of incrementing the module refcnt on bsg request.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/scsi/bfa/bfad_drv.h b/drivers/scsi/bfa/bfad_drv.h
index 6363dd7e15b4..8ec6e1d0064f 100644
--- a/drivers/scsi/bfa/bfad_drv.h
+++ b/drivers/scsi/bfa/bfad_drv.h
@@ -80,7 +80,7 @@
 #define BFAD_HAL_INIT_FAIL                      0x00000100
 #define BFAD_FC4_PROBE_DONE                     0x00000200
 #define BFAD_PORT_DELETE                        0x00000001
-
+#define BFAD_INTX_ON                            0x00000400
 /*
  * BFAD related definition
  */
@@ -93,6 +93,8 @@
  */
 #define BFAD_LUN_QUEUE_DEPTH    32
 #define BFAD_IO_MAX_SGE         SG_ALL
+#define BFAD_MIN_SECTORS        128 /* 64k   */
+#define BFAD_MAX_SECTORS        0xFFFF  /* 32 MB */
 
 #define bfad_isr_t irq_handler_t
 
@@ -343,6 +345,7 @@ extern int      msix_disable_ct;
 extern int      fdmi_enable;
 extern int      supported_fc4s;
 extern int      pcie_max_read_reqsz;
+extern int      max_xfer_size;
 extern int bfa_debugfs_enable;
 extern struct mutex bfad_mutex;