target/linux/layerscape/patches-5.4/701-net-0193-dpaa2-eth-Trim-debugfs-FQ-stats.patch

   1 From 2b19aa3f602c9d9d71959c6306c385927fb9578c Mon Sep 17 00:00:00 2001
   2 From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
   3 Date: Tue, 17 Sep 2019 16:53:03 +0300
   4 Subject: [PATCH] dpaa2-eth: Trim debugfs FQ stats
   5
   6 With the addition of multiple traffic classes support, the number
   7 of available frame queues grew significantly, overly inflating the
   8 debugfs FQ statistics entry. Update it to only show the queues
   9 which are actually in use (i.e. have a non-zero frame counter).
  10
  11 Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
  12 ---
  13  drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c | 4 ++++
  14  1 file changed, 4 insertions(+)
  15
  16 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
  17 +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
  18 @@ -90,6 +90,10 @@ static int dpaa2_dbg_fqs_show(struct seq
  19                 if (err)
  20                         fcnt = 0;
  21
  22 +               /* Skip FQs with no traffic */
  23 +               if (!fq->stats.frames && !fcnt)
  24 +                       continue;
  25 +
  26                 seq_printf(file, "%5d%16d%16d%16s%16llu%16u\n",
  27                            fq->fqid,
  28                            fq->target_cpu,