package/kernel/mac80211/patches/rt2x00/703-rt2x00-do-not-check-for-txstatus-timeout-every-time-.patch

   1 From b5d6e37ea15949a126907050d8cfa4408153a0cd Mon Sep 17 00:00:00 2001
   2 From: Stanislaw Gruszka <sgruszka@redhat.com>
   3 Date: Fri, 18 May 2018 12:25:10 +0200
   4 Subject: [PATCH 3/5] rt2x00: do not check for txstatus timeout every time on
   5  tasklet
   6
   7 Do not check for tx status timeout everytime we perform txstatus tasklet.
   8 Perform check once per half a second.
   9
  10 Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
  11 ---
  12  drivers/net/wireless/ralink/rt2x00/rt2800lib.c   | 7 +++++++
  13  drivers/net/wireless/ralink/rt2x00/rt2800mmio.c  | 3 ++-
  14  drivers/net/wireless/ralink/rt2x00/rt2x00.h      | 2 ++
  15  drivers/net/wireless/ralink/rt2x00/rt2x00queue.c | 1 +
  16  4 files changed, 12 insertions(+), 1 deletion(-)
  17
  18 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  19 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  20 @@ -1161,11 +1161,18 @@ bool rt2800_txstatus_timeout(struct rt2x
  21         struct data_queue *queue;
  22         struct queue_entry *entry;
  23
  24 +       if (time_before(jiffies,
  25 +                       rt2x00dev->last_nostatus_check + msecs_to_jiffies(500)))
  26 +               return false;
  27 +
  28 +       rt2x00dev->last_nostatus_check = jiffies;
  29 +
  30         tx_queue_for_each(rt2x00dev, queue) {
  31                 entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
  32                 if (rt2800_entry_txstatus_timeout(entry))
  33                         return true;
  34         }
  35 +
  36         return false;
  37  }
  38  EXPORT_SYMBOL_GPL(rt2800_txstatus_timeout);
  39 --- a/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c
  40 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c
  41 @@ -197,7 +197,8 @@ void rt2800mmio_txstatus_tasklet(unsigne
  42
  43         rt2800_txdone(rt2x00dev);
  44
  45 -       rt2800_txdone_nostatus(rt2x00dev);
  46 +       if (rt2800_txstatus_timeout(rt2x00dev))
  47 +               rt2800_txdone_nostatus(rt2x00dev);
  48
  49         if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
  50                 rt2800mmio_enable_interrupt(rt2x00dev,
  51 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
  52 +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
  53 @@ -988,6 +988,8 @@ struct rt2x00_dev {
  54          */
  55         DECLARE_KFIFO_PTR(txstatus_fifo, u32);
  56
  57 +       unsigned long last_nostatus_check;
  58 +
  59         /*
  60          * Timer to ensure tx status reports are read (rt2800usb).
  61          */
  62 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
  63 +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
  64 @@ -1039,6 +1039,7 @@ void rt2x00queue_start_queues(struct rt2
  65          */
  66         tx_queue_for_each(rt2x00dev, queue)
  67                 rt2x00queue_start_queue(queue);
  68 +       rt2x00dev->last_nostatus_check = jiffies;
  69
  70         rt2x00queue_start_queue(rt2x00dev->rx);
  71  }