Add support for General Statistics and Performance log page.

CTL already collects most of statistics reported there, so why not.

MFC after:	2 weeks

1 files changed, 11 insertions, 0 deletions

diff --git a/sys/cam/ctl/ctl_private.h b/sys/cam/ctl/ctl_private.h
index ffcb063e784b..428142c3b5e2 100644
--- a/sys/cam/ctl/ctl_private.h
+++ b/sys/cam/ctl/ctl_private.h
@@ -342,6 +342,8 @@ static const struct ctl_page_index log_page_index_template[] = {
 	 CTL_PAGE_FLAG_NONE, NULL, NULL},
 	{SLS_LOGICAL_BLOCK_PROVISIONING, 0, 0, NULL,
 	 CTL_PAGE_FLAG_NONE, ctl_lbp_log_sense_handler, NULL},
+	{SLS_STAT_AND_PERF, 0, 0, NULL,
+	 CTL_PAGE_FLAG_NONE, ctl_sap_log_sense_handler, NULL},
 };
 
 #define	CTL_NUM_LOG_PAGES sizeof(log_page_index_template)/   \
@@ -351,6 +353,11 @@ struct ctl_log_pages {
 	uint8_t				pages_page[CTL_NUM_LOG_PAGES];
 	uint8_t				subpages_page[CTL_NUM_LOG_PAGES * 2];
 	uint8_t				lbp_page[12*CTL_NUM_LBP_PARAMS];
+	struct stat_page {
+		struct scsi_log_stat_and_perf sap;
+		struct scsi_log_idle_time it;
+		struct scsi_log_time_interval ti;
+	} stat_page;
 	struct ctl_page_index		index[CTL_NUM_LOG_PAGES];
 };
 
@@ -403,6 +410,10 @@ struct ctl_lun {
 	struct ctl_lun_delay_info	delay_info;
 	int				sync_interval;
 	int				sync_count;
+#ifdef CTL_TIME_IO
+	sbintime_t			idle_time;
+	sbintime_t			last_busy;
+#endif
 	TAILQ_HEAD(ctl_ooaq, ctl_io_hdr)  ooa_queue;
 	TAILQ_HEAD(ctl_blockq,ctl_io_hdr) blocked_queue;
 	STAILQ_ENTRY(ctl_lun)		links;