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path: root/drivers/scsi/lpfc/lpfc_sli4.h
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli4.h')
-rw-r--r--drivers/scsi/lpfc/lpfc_sli4.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index a33fb6715329..6893e8547431 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -533,6 +533,59 @@ struct lpfc_vector_map_info {
};
#define LPFC_VECTOR_MAP_EMPTY 0xffff
+/* Multi-XRI pool */
+#define XRI_BATCH 8
+
+struct lpfc_pbl_pool {
+ struct list_head list;
+ u32 count;
+ spinlock_t lock; /* lock for pbl_pool*/
+};
+
+struct lpfc_pvt_pool {
+ u32 low_watermark;
+ u32 high_watermark;
+
+ struct list_head list;
+ u32 count;
+ spinlock_t lock; /* lock for pvt_pool */
+};
+
+struct lpfc_multixri_pool {
+ u32 xri_limit;
+
+ /* Starting point when searching a pbl_pool with round-robin method */
+ u32 rrb_next_hwqid;
+
+ /* Used by lpfc_adjust_pvt_pool_count.
+ * io_req_count is incremented by 1 during IO submission. The heartbeat
+ * handler uses these two variables to determine if pvt_pool is idle or
+ * busy.
+ */
+ u32 prev_io_req_count;
+ u32 io_req_count;
+
+ /* statistics */
+ u32 pbl_empty_count;
+#ifdef LPFC_MXP_STAT
+ u32 above_limit_count;
+ u32 below_limit_count;
+ u32 local_pbl_hit_count;
+ u32 other_pbl_hit_count;
+ u32 stat_max_hwm;
+
+#define LPFC_MXP_SNAPSHOT_TAKEN 3 /* snapshot is taken at 3rd heartbeats */
+ u32 stat_pbl_count;
+ u32 stat_pvt_count;
+ u32 stat_busy_count;
+ u32 stat_snapshot_taken;
+#endif
+
+ /* TODO: Separate pvt_pool into get and put list */
+ struct lpfc_pbl_pool pbl_pool; /* Public free XRI pool */
+ struct lpfc_pvt_pool pvt_pool; /* Private free XRI pool */
+};
+
struct lpfc_fc4_ctrl_stat {
u32 input_requests;
u32 output_requests;
@@ -567,6 +620,9 @@ struct lpfc_sli4_hdw_queue {
uint32_t abts_scsi_io_bufs;
uint32_t abts_nvme_io_bufs;
+ /* Multi-XRI pool per HWQ */
+ struct lpfc_multixri_pool *p_multixri_pool;
+
/* FC-4 Stats counters */
struct lpfc_fc4_ctrl_stat nvme_cstat;
struct lpfc_fc4_ctrl_stat scsi_cstat;