[SCSI] lpfc 8.3.19: Added support for ELS RRQ command

Added support for ELS RRQ command

- Add new routine lpfc_set_rrq_active() to track XRI qualifier state.
- Add new module parameter lpfc_enable_rrq to control RRQ operation.
- Add logic to ELS RRQ completion handler and xri qualifier timeout
  to clear XRI qualifier state.
- Use OX_ID from XRI_ABORTED_CQE for RRQ payload.
- Tie abort and XRI_ABORTED_CQE andler to RRQ generation.

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

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index e86a0d2add3c..746dd3d7a092 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -486,7 +486,7 @@ struct lpfc_hba {
 	int (*lpfc_new_scsi_buf)
 		(struct lpfc_vport *, int);
 	struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
-		(struct lpfc_hba *);
+		(struct lpfc_hba *, struct lpfc_nodelist *);
 	int (*lpfc_scsi_prep_dma_buf)
 		(struct lpfc_hba *, struct lpfc_scsi_buf *);
 	void (*lpfc_scsi_unprep_dma_buf)
@@ -574,6 +574,7 @@ struct lpfc_hba {
 #define HBA_FIP_SUPPORT		0x800 /* FIP support in HBA */
 #define HBA_AER_ENABLED		0x1000 /* AER enabled with HBA */
 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
+#define HBA_RRQ_ACTIVE		0x4000 /* process the rrq active list */
 	uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
 	struct lpfc_dmabuf slim2p;
 
@@ -623,6 +624,7 @@ struct lpfc_hba {
 	/* HBA Config Parameters */
 	uint32_t cfg_ack0;
 	uint32_t cfg_enable_npiv;
+	uint32_t cfg_enable_rrq;
 	uint32_t cfg_topology;
 	uint32_t cfg_link_speed;
 	uint32_t cfg_cr_delay;
@@ -733,6 +735,7 @@ struct lpfc_hba {
 	uint32_t total_scsi_bufs;
 	struct list_head lpfc_iocb_list;
 	uint32_t total_iocbq_bufs;
+	struct list_head active_rrq_list;
 	spinlock_t hbalock;
 
 	/* pci_mem_pools */
@@ -745,6 +748,7 @@ struct lpfc_hba {
 
 	mempool_t *mbox_mem_pool;
 	mempool_t *nlp_mem_pool;
+	mempool_t *rrq_pool;
 
 	struct fc_host_statistics link_stats;
 	enum intr_type_t intr_type;
@@ -801,6 +805,7 @@ struct lpfc_hba {
 	unsigned long skipped_hb;
 	struct timer_list hb_tmofunc;
 	uint8_t hb_outstanding;
+	struct timer_list rrq_tmr;
 	enum hba_temp_state over_temp_state;
 	/* ndlp reference management */
 	spinlock_t ndlp_lock;