aboutsummaryrefslogtreecommitdiffstats
path: root/package/kernel/mac80211/patches/rt2x00
diff options
context:
space:
mode:
authorDaniel Golle <daniel@makrotopia.org>2018-08-15 15:22:43 +0200
committerJohn Crispin <john@phrozen.org>2018-09-26 16:39:44 +0200
commitc837c41a768ddd6f3d028fe480dd972b40389b2a (patch)
tree805ead415eb5dbdff576b9936af5603d0a5508bf /package/kernel/mac80211/patches/rt2x00
parentd449233fd2b5efaa7ab086eda656fc7f962cf3b4 (diff)
downloadupstream-c837c41a768ddd6f3d028fe480dd972b40389b2a.tar.gz
upstream-c837c41a768ddd6f3d028fe480dd972b40389b2a.tar.bz2
upstream-c837c41a768ddd6f3d028fe480dd972b40389b2a.zip
mac80211: rt2x00: remove obsolete patch
According to Stanislaw Gruszka the patch 600-23-rt2x00-rt2800mmio-add-a-workaround-for-spurious-TX_F.patch should be dropped. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00')
-rw-r--r--package/kernel/mac80211/patches/rt2x00/600-23-rt2x00-rt2800mmio-add-a-workaround-for-spurious-TX_F.patch136
1 files changed, 0 insertions, 136 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/600-23-rt2x00-rt2800mmio-add-a-workaround-for-spurious-TX_F.patch b/package/kernel/mac80211/patches/rt2x00/600-23-rt2x00-rt2800mmio-add-a-workaround-for-spurious-TX_F.patch
deleted file mode 100644
index 342174f8d5..0000000000
--- a/package/kernel/mac80211/patches/rt2x00/600-23-rt2x00-rt2800mmio-add-a-workaround-for-spurious-TX_F.patch
+++ /dev/null
@@ -1,136 +0,0 @@
-From 5e67d4f8a46d19748b501c2ef86de3f50d3cfd51 Mon Sep 17 00:00:00 2001
-From: Gabor Juhos <juhosg@openwrt.org>
-Date: Sun, 24 Mar 2013 19:26:27 +0100
-Subject: [PATCH] rt2x00: rt2800mmio: add a workaround for spurious
- TX_FIFO_STATUS interrupts
-
-Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
----
- drivers/net/wireless/ralink/rt2x00/rt2800mmio.c | 72 +++++++++++++++++++++++++-----
- drivers/net/wireless/ralink/rt2x00/rt2x00.h | 5 +++
- 2 files changed, 65 insertions(+), 12 deletions(-)
-
---- a/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c
-+++ b/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c
-@@ -424,9 +424,9 @@ void rt2800mmio_autowake_tasklet(unsigne
- }
- EXPORT_SYMBOL_GPL(rt2800mmio_autowake_tasklet);
-
--static void rt2800mmio_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
-+static void rt2800mmio_txstatus_interrupt(struct rt2x00_dev *rt2x00dev,
-+ u32 status)
- {
-- u32 status;
- int i;
-
- /*
-@@ -447,29 +447,77 @@ static void rt2800mmio_txstatus_interrup
- * Since we have only one producer and one consumer we don't
- * need to lock the kfifo.
- */
-- for (i = 0; i < rt2x00dev->tx->limit; i++) {
-- status = rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO);
--
-- if (!rt2x00_get_field32(status, TX_STA_FIFO_VALID))
-- break;
--
-+ i = 0;
-+ do {
- if (!kfifo_put(&rt2x00dev->txstatus_fifo, status)) {
-- rt2x00_warn(rt2x00dev, "TX status FIFO overrun, drop tx status report\n");
-+ rt2x00_warn(rt2x00dev,
-+ "TX status FIFO overrun, drop TX status report\n");
- break;
- }
-- }
-+
-+ if (++i >= rt2x00dev->tx->limit)
-+ break;
-+
-+ status = rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO);
-+ } while (rt2x00_get_field32(status, TX_STA_FIFO_VALID));
-
- /* Schedule the tasklet for processing the tx status. */
- tasklet_schedule(&rt2x00dev->txstatus_tasklet);
- }
-
-+#define RT2800MMIO_TXSTATUS_IRQ_MAX_RETRIES 4
-+
-+static bool rt2800mmio_txstatus_is_spurious(struct rt2x00_dev *rt2x00dev,
-+ u32 txstatus)
-+{
-+ if (likely(rt2x00_get_field32(txstatus, TX_STA_FIFO_VALID))) {
-+ rt2x00dev->txstatus_irq_retries = 0;
-+ return false;
-+ }
-+
-+ rt2x00dev->txstatus_irq_retries++;
-+
-+ /* Ensure that we don't go into an infinite IRQ loop. */
-+ if (rt2x00dev->txstatus_irq_retries >=
-+ RT2800MMIO_TXSTATUS_IRQ_MAX_RETRIES) {
-+ rt2x00_warn(rt2x00dev,
-+ "%u spurious TX_FIFO_STATUS interrupt(s)\n",
-+ rt2x00dev->txstatus_irq_retries);
-+ rt2x00dev->txstatus_irq_retries = 0;
-+ return false;
-+ }
-+
-+ return true;
-+}
-+
- irqreturn_t rt2800mmio_interrupt(int irq, void *dev_instance)
- {
- struct rt2x00_dev *rt2x00dev = dev_instance;
- u32 reg, mask;
-+ u32 txstatus = 0;
-
-- /* Read status and ACK all interrupts */
-+ /* Read status */
- reg = rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR);
-+
-+ if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS)) {
-+ /* Due to unknown reason the hardware generates a
-+ * TX_FIFO_STATUS interrupt before the TX_STA_FIFO
-+ * register contain valid data. Read the TX status
-+ * here to see if we have to process the actual
-+ * request.
-+ */
-+ txstatus = rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO);
-+ if (rt2800mmio_txstatus_is_spurious(rt2x00dev, txstatus)) {
-+ /* Remove the TX_FIFO_STATUS bit so it won't be
-+ * processed in this turn. The hardware will
-+ * generate another IRQ for us.
-+ */
-+ rt2x00_set_field32(&reg,
-+ INT_SOURCE_CSR_TX_FIFO_STATUS, 0);
-+ }
-+ }
-+
-+ /* ACK interrupts */
- rt2x00mmio_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
-
- if (!reg)
-@@ -486,7 +534,7 @@ irqreturn_t rt2800mmio_interrupt(int irq
- mask = ~reg;
-
- if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS)) {
-- rt2800mmio_txstatus_interrupt(rt2x00dev);
-+ rt2800mmio_txstatus_interrupt(rt2x00dev, txstatus);
- /*
- * Never disable the TX_FIFO_STATUS interrupt.
- */
---- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
-+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
-@@ -1000,6 +1000,11 @@ struct rt2x00_dev {
- int rf_channel;
-
- /*
-+ * Counter for tx status irq retries (rt2800pci).
-+ */
-+ unsigned int txstatus_irq_retries;
-+
-+ /*
- * Protect the interrupt mask register.
- */
- spinlock_t irqmask_lock;