From fe9000816a7202e8957e6528e7fa3244e428158b Mon Sep 17 00:00:00 2001
From: Andrew Rybchenko <arybchik@FreeBSD.org>
Date: Thu, 29 Jan 2015 18:54:43 +0000
Subject: [PATCH] sfxge: Make it possible to build without EVQ statistics

Sponsored by:   Solarflare Communications, Inc.
Approved by:    gnn (mentor)
---
 sys/dev/sfxge/common/efx_ev.c | 2 ++
 sys/dev/sfxge/common/efx_tx.c | 2 ++
 sys/dev/sfxge/sfxge.h         | 2 ++
 sys/dev/sfxge/sfxge_ev.c      | 8 ++++++++
 4 files changed, 14 insertions(+)

diff --git a/sys/dev/sfxge/common/efx_ev.c b/sys/dev/sfxge/common/efx_ev.c
index f8b9aae309d9..515435b21f1b 100644
--- a/sys/dev/sfxge/common/efx_ev.c
+++ b/sys/dev/sfxge/common/efx_ev.c
@@ -995,6 +995,7 @@ efx_ev_qcreate(
 	return (rc);
 }
 
+#if EFSYS_OPT_QSTATS
 #if EFSYS_OPT_NAMES
 /* START MKCONFIG GENERATED EfxEventQueueStatNamesBlock 67e9bdcd920059bd */
 static const char 	__cs * __cs __efx_ev_qstat_name[] = {
@@ -1052,6 +1053,7 @@ efx_ev_qstat_name(
 	return (__efx_ev_qstat_name[id]);
 }
 #endif	/* EFSYS_OPT_NAMES */
+#endif	/* EFSYS_OPT_QSTATS */
 
 #if EFSYS_OPT_QSTATS
 					void
diff --git a/sys/dev/sfxge/common/efx_tx.c b/sys/dev/sfxge/common/efx_tx.c
index a78b761b02f9..a7ec361ef49e 100644
--- a/sys/dev/sfxge/common/efx_tx.c
+++ b/sys/dev/sfxge/common/efx_tx.c
@@ -358,6 +358,7 @@ efx_tx_qcreate(
 	return (rc);
 }
 
+#if EFSYS_OPT_QSTATS
 #if EFSYS_OPT_NAMES
 /* START MKCONFIG GENERATED EfxTransmitQueueStatNamesBlock 78ca9ab00287fffb */
 static const char 	__cs * __cs __efx_tx_qstat_name[] = {
@@ -378,6 +379,7 @@ efx_tx_qstat_name(
 	return (__efx_tx_qstat_name[id]);
 }
 #endif	/* EFSYS_OPT_NAMES */
+#endif	/* EFSYS_OPT_QSTATS */
 
 #if EFSYS_OPT_QSTATS
 					void
diff --git a/sys/dev/sfxge/sfxge.h b/sys/dev/sfxge/sfxge.h
index 96864b1fd7e3..4dfe3f2d14cb 100644
--- a/sys/dev/sfxge/sfxge.h
+++ b/sys/dev/sfxge/sfxge.h
@@ -225,8 +225,10 @@ struct sfxge_softc {
 
 	struct sfxge_evq		*evq[SFXGE_RX_SCALE_MAX];
 	unsigned int			ev_moderation;
+#if EFSYS_OPT_QSTATS
 	clock_t				ev_stats_update_time;
 	uint64_t			ev_stats[EV_NQSTATS];
+#endif
 
 	uma_zone_t			rxq_cache;
 	struct sfxge_rxq		*rxq[SFXGE_RX_SCALE_MAX];
diff --git a/sys/dev/sfxge/sfxge_ev.c b/sys/dev/sfxge/sfxge_ev.c
index bd1c063008d4..f93a67cfbd59 100644
--- a/sys/dev/sfxge/sfxge_ev.c
+++ b/sys/dev/sfxge/sfxge_ev.c
@@ -406,6 +406,8 @@ sfxge_ev_wake_up(void *arg, uint32_t index)
 	return (B_FALSE);
 }
 
+#if EFSYS_OPT_QSTATS
+
 static void
 sfxge_ev_stat_update(struct sfxge_softc *sc)
 {
@@ -467,6 +469,8 @@ sfxge_ev_stat_init(struct sfxge_softc *sc)
 	}
 }
 
+#endif /* EFSYS_OPT_QSTATS */
+
 static void
 sfxge_ev_qmoderate(struct sfxge_softc *sc, unsigned int idx, unsigned int us)
 {
@@ -627,8 +631,10 @@ sfxge_ev_qstop(struct sfxge_softc *sc, unsigned int index)
 	evq->read_ptr = 0;
 	evq->exception = B_FALSE;
 
+#if EFSYS_OPT_QSTATS
 	/* Add event counts before discarding the common evq state */
 	efx_ev_qstats_update(evq->common, sc->ev_stats);
+#endif
 
 	efx_ev_qdestroy(evq->common);
 	efx_sram_buf_tbl_clear(sc->enp, evq->buf_base_id,
@@ -883,7 +889,9 @@ sfxge_ev_init(struct sfxge_softc *sc)
 			goto fail;
 	}
 
+#if EFSYS_OPT_QSTATS
 	sfxge_ev_stat_init(sc);
+#endif
 
 	return (0);