netdev - [PATCH 2/3] mac80211: Export fq memory limit information in debugfs

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Message-Id: <20160923195911.4572-3-toke@toke.dk>
Date:   Fri, 23 Sep 2016 21:59:10 +0200
From:   Toke Høiland-Jørgensen <toke@...e.dk>
To:     make-wifi-fast@...ts.bufferbloat.net,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Cc:     Toke Høiland-Jørgensen <toke@...e.dk>
Subject: [PATCH 2/3] mac80211: Export fq memory limit information in debugfs

Add memory limit, usage and overlimit counter to per-PHY 'aqm' debugfs
file.

Signed-off-by: Toke Høiland-Jørgensen <toke@...e.dk>
---
 net/mac80211/debugfs.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 8ca62b6..f56e2f4 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -89,13 +89,19 @@ static ssize_t aqm_read(struct file *file,
 			"R fq_flows_cnt %u\n"
 			"R fq_backlog %u\n"
 			"R fq_overlimit %u\n"
+			"R fq_overmemory %u\n"
 			"R fq_collisions %u\n"
+			"R fq_memory_usage %u\n"
+			"RW fq_memory_limit %u\n"
 			"RW fq_limit %u\n"
 			"RW fq_quantum %u\n",
 			fq->flows_cnt,
 			fq->backlog,
+			fq->overmemory,
 			fq->overlimit,
 			fq->collisions,
+			fq->memory_usage,
+			fq->memory_limit,
 			fq->limit,
 			fq->quantum);
 
@@ -128,6 +134,8 @@ static ssize_t aqm_write(struct file *file,
 
 	if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
 		return count;
+	else if (sscanf(buf, "fq_memory_limit %u", &local->fq.memory_limit) == 1)
+		return count;
 	else if (sscanf(buf, "fq_quantum %u", &local->fq.quantum) == 1)
 		return count;
 
-- 
2.9.3