target/linux/layerscape/patches-5.4/701-net-0208-dpaa2-eth-Add-channel-stat.patch

   1 From 5a43b0405561fb6feffb7042493b58014ac27a4d Mon Sep 17 00:00:00 2001
   2 From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
   3 Date: Tue, 12 Feb 2019 22:05:16 +0200
   4 Subject: [PATCH] dpaa2-eth: Add channel stat
   5
   6 Compute average number of frames processed for each CDAN
   7 received on a channel and print it in the detailed channel
   8 stats.
   9
  10 Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
  11 ---
  12  drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c | 8 +++++---
  13  drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c         | 1 +
  14  drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h         | 2 ++
  15  drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c     | 2 +-
  16  4 files changed, 9 insertions(+), 4 deletions(-)
  17
  18 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
  19 +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
  20 @@ -132,16 +132,18 @@ static int dpaa2_dbg_ch_show(struct seq_
  21         int i;
  22
  23         seq_printf(file, "Channel stats for %s:\n", priv->net_dev->name);
  24 -       seq_printf(file, "%s%16s%16s%16s%16s\n",
  25 -                  "CHID", "CPU", "Deq busy", "CDANs", "Buf count");
  26 +       seq_printf(file, "%s%16s%16s%16s%16s%16s%16s\n",
  27 +                  "CHID", "CPU", "Deq busy", "Frames", "CDANs", "Avg Frm/CDAN", "Buf count");
  28
  29         for (i = 0; i < priv->num_channels; i++) {
  30                 ch = priv->channel[i];
  31 -               seq_printf(file, "%4d%16d%16llu%16llu%16d\n",
  32 +               seq_printf(file, "%4d%16d%16llu%16llu%16llu%16llu%16d\n",
  33                            ch->ch_id,
  34                            ch->nctx.desired_cpu,
  35                            ch->stats.dequeue_portal_busy,
  36 +                          ch->stats.frames,
  37                            ch->stats.cdan,
  38 +                          ch->stats.frames / ch->stats.cdan,
  39                            ch->buf_count);
  40         }
  41
  42 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
  43 +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
  44 @@ -540,6 +540,7 @@ static int consume_frames(struct dpaa2_e
  45                 return 0;
  46
  47         fq->stats.frames += cleaned;
  48 +       ch->stats.frames += cleaned;
  49
  50         /* A dequeue operation only pulls frames from a single queue
  51          * into the store. Return the frame queue as an out param.
  52 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
  53 +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
  54 @@ -310,6 +310,8 @@ struct dpaa2_eth_ch_stats {
  55         __u64 xdp_tx;
  56         __u64 xdp_tx_err;
  57         __u64 xdp_redirect;
  58 +       /* Must be last, does not show up in ethtool stats */
  59 +       __u64 frames;
  60  };
  61
  62  /* Maximum number of queues associated with a DPNI */
  63 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
  64 +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
  65 @@ -234,7 +234,7 @@ static void dpaa2_eth_get_ethtool_stats(
  66         /* Per-channel stats */
  67         for (k = 0; k < priv->num_channels; k++) {
  68                 ch_stats = &priv->channel[k]->stats;
  69 -               for (j = 0; j < sizeof(*ch_stats) / sizeof(__u64); j++)
  70 +               for (j = 0; j < sizeof(*ch_stats) / sizeof(__u64) - 1; j++)
  71                         *((__u64 *)data + i + j) += *((__u64 *)ch_stats + j);
  72         }
  73         i += j;