[SCSI] lpfc: bug fixes

 Following the NPIV support, the following changes have been accumulated
 in the testing and qualification of the driver:

 - Fix affinity of ELS ring to slow/deferred event processing
 - Fix Ring attention masks
 - Defer dev_loss_tmo timeout handling to worker thread
 - Consolidate link down error classification for better error checking
 - Remove unused/deprecated nlp_initiator_tmr timer
 - Fix for async scan - move adapter init code back into pci_probe_one
   context. Fix async scan interfaces.
 - Expand validation of ability to create vports
 - Extract VPI resource cnt from firmware
 - Tuning of Login/Reject policies to better deal with overwhelmned targets
 - Misc ELS and discovery fixes
 - Export the npiv_enable attribute to sysfs
 - Mailbox handling fix
 - Add debugfs support
 - A few other small misc fixes:
    - wrong return values, double-frees, bad locking
 - Added adapter failure heartbeat

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 18 insertions, 3 deletions

diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 7fab93d34367..c2fb59f595f3 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -1278,6 +1278,7 @@ typedef struct {		/* FireFly BIU registers */
 #define MBX_KILL_BOARD      0x24
 #define MBX_CONFIG_FARP     0x25
 #define MBX_BEACON          0x2A
+#define MBX_HEARTBEAT       0x31
 
 #define MBX_CONFIG_HBQ      0x7C
 #define MBX_LOAD_AREA       0x81
@@ -1777,8 +1778,6 @@ typedef struct {
 #define LMT_4Gb       0x040
 #define LMT_8Gb       0x080
 #define LMT_10Gb      0x100
-
-
         uint32_t rsvd2;
         uint32_t rsvd3;
         uint32_t max_xri;
@@ -1787,7 +1786,10 @@ typedef struct {
         uint32_t avail_xri;
         uint32_t avail_iocb;
         uint32_t avail_rpi;
-        uint32_t default_rpi;
+        uint32_t max_vpi;
+        uint32_t rsvd4;
+        uint32_t rsvd5;
+        uint32_t avail_vpi;
 } READ_CONFIG_VAR;
 
 /* Structure for MB Command READ_RCONFIG (12) */
@@ -3171,3 +3173,16 @@ lpfc_is_LC_HBA(unsigned short device)
         else
                 return 0;
 }
+
+/*
+ * Determine if an IOCB failed because of a link event or firmware reset.
+ */
+
+static inline int
+lpfc_error_lost_link(IOCB_t *iocbp)
+{
+        return (iocbp->ulpStatus == IOSTAT_LOCAL_REJECT &&
+                (iocbp->un.ulpWord[4] == IOERR_SLI_ABORTED ||
+                 iocbp->un.ulpWord[4] == IOERR_LINK_DOWN ||
+                 iocbp->un.ulpWord[4] == IOERR_SLI_DOWN));
+}