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rt2800: initial watchdog implementation

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Add watchdog for rt2800 devices. For now it only detect hung
and print error.

[Note: I verified that printing messages from process context is
fine on MT7620 (WT3020) platform that have problem when printk
is called from interrupt context].

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Stanislaw Gruszka
2019-06-15 12:00:56 +02:00
committed by Kalle Valo
parent 2034afe4db
commit 759c5b599c
6 changed files with 67 additions and 0 deletions
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6
drivers/net/wireless/ralink/rt2x00/rt2x00queue.h
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@@ -435,6 +435,9 @@ enum data_queue_flags {
* @length: Number of frames in queue.
* @index: Index pointers to entry positions in the queue,
* use &enum queue_index to get a specific index field.
* @wd_count: watchdog counter number of times entry does change
* in the queue
* @wd_idx: index of queue entry saved by watchdog
* @txop: maximum burst time.
* @aifs: The aifs value for outgoing frames (field ignored in RX queue).
* @cw_min: The cw min value for outgoing frames (field ignored in RX queue).
@@ -462,6 +465,9 @@ struct data_queue {
unsigned short length;
unsigned short index[Q_INDEX_MAX];
unsigned short wd_count;
unsigned int wd_idx;
unsigned short txop;
unsigned short aifs;
unsigned short cw_min;