[SCSI] lpfc 8.3.5: fix fcp command polling, add FIP mode, performance optimisations and devloss timout fixes

This patch includes the following changes:
- Fixed Panic/Hang when using polling mode for fcp commands
- Added support for Read_rev mbox bits indicating FIP mode of HBA
- Optimize performance of slow-path handling of els responses
- Add code to cleanup orphaned unsolicited receive sequences
- Fixed Devloss timeout when multiple initiators are in same zone

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index e5ebb5343421..ebeddbe86e67 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -110,6 +110,7 @@ struct hbq_dmabuf {
         uint32_t size;
         uint32_t tag;
         struct lpfc_cq_event cq_event;
+        unsigned long time_stamp;
 };
 
 /* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
@@ -405,6 +406,7 @@ struct lpfc_vport {
         uint8_t stat_data_enabled;
         uint8_t stat_data_blocked;
         struct list_head rcv_buffer_list;
+        unsigned long rcv_buffer_time_stamp;
         uint32_t vport_flag;
 #define STATIC_VPORT    1
 };
@@ -527,14 +529,16 @@ struct lpfc_hba {
 #define HBA_ERATT_HANDLED       0x1 /* This flag is set when eratt handled */
 #define DEFER_ERATT             0x2 /* Deferred error attention in progress */
 #define HBA_FCOE_SUPPORT        0x4 /* HBA function supports FCOE */
-#define HBA_RECEIVE_BUFFER      0x8 /* Rcv buffer posted to worker thread */
+#define HBA_SP_QUEUE_EVT        0x8 /* Slow-path qevt posted to worker thread*/
 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
 #define FCP_XRI_ABORT_EVENT     0x20
 #define ELS_XRI_ABORT_EVENT     0x40
 #define ASYNC_EVENT             0x80
 #define LINK_DISABLED           0x100 /* Link disabled by user */
 #define FCF_DISC_INPROGRESS     0x200 /* FCF discovery in progress */
-#define HBA_AER_ENABLED         0x800 /* AER enabled with HBA */
+#define HBA_FIP_SUPPORT         0x400 /* FIP support in HBA */
+#define HBA_AER_ENABLED         0x800 /* AER enabled with HBA */
+        uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
         struct lpfc_dmabuf slim2p;
 
         MAILBOX_t *mbox;
@@ -606,7 +610,6 @@ struct lpfc_hba {
         uint32_t cfg_enable_hba_reset;
         uint32_t cfg_enable_hba_heartbeat;
         uint32_t cfg_enable_bg;
-        uint32_t cfg_enable_fip;
         uint32_t cfg_log_verbose;
         uint32_t cfg_aer_support;