mac80211: rt2x00: backport upstream patches

Import patches from upstream to sync 19.07 with master:
 9f3e3323e996 rt2x00: allow to specify watchdog interval
 2034afe4db4a rt2800: add helpers for reading dma done index
 759c5b599cf4 rt2800: initial watchdog implementation
 09db3b000619 rt2800: add pre_reset_hw callback
 710e6cc1595e rt2800: do not nullify initialization vector data
 e403fa31ed71 rt2x00: add restart hw
 0f47aeeada2a rt2800: do not enable watchdog by default
 41a531ffa4c5 rt2x00usb: fix rx queue hang
 3b902fa811cf rt2x00usb: remove unnecessary rx flag checks
 1dc244064c47 rt2x00: no need to check return value of debugfs_create functions
 706f0182b1ad rt2800usb: Add new rt2800usb device PLANEX GW-USMicroN
 95844124385e rt2x00: clear IV's on start to fix AP mode regression
 567a9b766b47 rt2x00: do not set IEEE80211_TX_STAT_AMPDU_NO_BACK on tx status
 14d5e14c8a6c rt2x00: clear up IV's on key removal
 13fa451568ab Revert "rt2800: enable TX_PIN_CFG_LNA_PE_ bits per band"
 --pending--  rt2800: remove errornous duplicate condition

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/package/kernel/mac80211/patches/rt2x00/066-rt2800-do-not-enable-watchdog-by-default.patch b/package/kernel/mac80211/patches/rt2x00/066-rt2800-do-not-enable-watchdog-by-default.patch
new file mode 100644
index 0000000000..37e03dbb52
--- /dev/null
+++ b/package/kernel/mac80211/patches/rt2x00/066-rt2800-do-not-enable-watchdog-by-default.patch
@@ -0,0 +1,71 @@
+From 0f47aeeada2a1fe296258eab9a08ced258009481 Mon Sep 17 00:00:00 2001
+From: Stanislaw Gruszka <sgruszka@redhat.com>
+Date: Sat, 15 Jun 2019 12:01:00 +0200
+Subject: [PATCH 07/15] rt2800: do not enable watchdog by default
+
+Make watchdog disabled by default and add module parameter to enable it.
+
+User will have to create file in /etc/modprobe.d/ with
+
+options rt2800lib watchdog=1
+
+to enable the watchdog or load "rt2800lib watchdog=1" module manually
+before loading rt2800{soc,pci,usb} module.
+
+Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
+Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
+---
+ drivers/net/wireless/ralink/rt2x00/rt2800lib.c  | 12 ++++++++++--
+ drivers/net/wireless/ralink/rt2x00/rt2x00.h     |  1 +
+ drivers/net/wireless/ralink/rt2x00/rt2x00link.c |  2 +-
+ 3 files changed, 12 insertions(+), 3 deletions(-)
+
+--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+@@ -41,6 +41,10 @@
+ #include "rt2800lib.h"
+ #include "rt2800.h"
+ 
++static bool modparam_watchdog;
++module_param_named(watchdog, modparam_watchdog, bool, S_IRUGO);
++MODULE_PARM_DESC(watchdog, "Enable watchdog to detect tx/rx hangs and reset hardware if detected");
++
+ /*
+  * Register access.
+  * All access to the CSR registers will go through the methods
+@@ -10297,8 +10301,12 @@ int rt2800_probe_hw(struct rt2x00_dev *r
+ 		__set_bit(REQUIRE_TASKLET_CONTEXT, &rt2x00dev->cap_flags);
+ 	}
+ 
+-	__set_bit(CAPABILITY_RESTART_HW, &rt2x00dev->cap_flags);
+-	rt2x00dev->link.watchdog_interval = msecs_to_jiffies(100);
++	if (modparam_watchdog) {
++		__set_bit(CAPABILITY_RESTART_HW, &rt2x00dev->cap_flags);
++		rt2x00dev->link.watchdog_interval = msecs_to_jiffies(100);
++	} else {
++		rt2x00dev->link.watchdog_disabled = true;
++	}
+ 
+ 	/*
+ 	 * Set the rssi offset.
+--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+@@ -337,6 +337,7 @@ struct link {
+ 	 */
+ 	struct delayed_work watchdog_work;
+ 	unsigned int watchdog_interval;
++	bool watchdog_disabled;
+ 
+ 	/*
+ 	 * Work structure for scheduling periodic AGC adjustments.
+--- a/drivers/net/wireless/ralink/rt2x00/rt2x00link.c
++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00link.c
+@@ -395,7 +395,7 @@ void rt2x00link_start_watchdog(struct rt
+ 	struct link *link = &rt2x00dev->link;
+ 
+ 	if (test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) &&
+-	    rt2x00dev->ops->lib->watchdog)
++	    rt2x00dev->ops->lib->watchdog && !link->watchdog_disabled)
+ 		ieee80211_queue_delayed_work(rt2x00dev->hw,
+ 					     &link->watchdog_work,
+ 					     link->watchdog_interval);