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 diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  19 index 9f2835729016..0c56c7dca55f 100644
  20 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  21 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  22 @@ -1158,11 +1158,18 @@ bool rt2800_txstatus_timeout(struct rt2x00_dev *rt2x00dev)
  23         struct data_queue *queue;
  24         struct queue_entry *entry;
  25
  26 +       if (time_before(jiffies,
  27 +                       rt2x00dev->last_nostatus_check + msecs_to_jiffies(500)))
  28 +               return false;
  29 +
  30 +       rt2x00dev->last_nostatus_check = jiffies;
  31 +
  32         tx_queue_for_each(rt2x00dev, queue) {
  33                 entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
  34                 if (rt2800_entry_txstatus_timeout(entry))
  35                         return true;
  36         }
  37 +
  38         return false;
  39  }
  40  EXPORT_SYMBOL_GPL(rt2800_txstatus_timeout);
  41 diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c b/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c
  42 index aa8449a5e8fe..d0426314c2df 100644
  43 --- a/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c
  44 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c
  45 @@ -197,7 +197,8 @@ void rt2800mmio_txstatus_tasklet(unsigned long data)
  46
  47         rt2800_txdone(rt2x00dev);
  48
  49 -       rt2800_txdone_nostatus(rt2x00dev);
  50 +       if (rt2800_txstatus_timeout(rt2x00dev))
  51 +               rt2800_txdone_nostatus(rt2x00dev);
  52
  53         if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
  54                 rt2800mmio_enable_interrupt(rt2x00dev,
  55 diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00.h b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
  56 index a279a4363bc1..af062cda4a23 100644
  57 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
  58 +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
  59 @@ -980,6 +980,8 @@ struct rt2x00_dev {
  60          */
  61         DECLARE_KFIFO_PTR(txstatus_fifo, u32);
  62
  63 +       unsigned long last_nostatus_check;
  64 +
  65         /*
  66          * Timer to ensure tx status reports are read (rt2800usb).
  67          */
  68 diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
  69 index 6e8beb7ea350..92ddc19e7bf7 100644
  70 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
  71 +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
  72 @@ -1039,6 +1039,7 @@ void rt2x00queue_start_queues(struct rt2x00_dev *rt2x00dev)
  73          */
  74         tx_queue_for_each(rt2x00dev, queue)
  75                 rt2x00queue_start_queue(queue);
  76 +       rt2x00dev->last_nostatus_check = jiffies;
  77
  78         rt2x00queue_start_queue(rt2x00dev->rx);
  79  }
  80 --
  81 2.18.0
  82