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-rw-r--r--package/kernel/mac80211/patches/660-0054-rtl8xxxu-Handle-devices-with-a-smaller-LLT-buffer.patch70
1 files changed, 70 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/660-0054-rtl8xxxu-Handle-devices-with-a-smaller-LLT-buffer.patch b/package/kernel/mac80211/patches/660-0054-rtl8xxxu-Handle-devices-with-a-smaller-LLT-buffer.patch
new file mode 100644
index 0000000000..49a9f8bd8a
--- /dev/null
+++ b/package/kernel/mac80211/patches/660-0054-rtl8xxxu-Handle-devices-with-a-smaller-LLT-buffer.patch
@@ -0,0 +1,70 @@
+From 5dd3f1799baf4683c0161f7e49d65bee17f3e35d Mon Sep 17 00:00:00 2001
+From: Jes Sorensen <Jes.Sorensen@redhat.com>
+Date: Wed, 31 Aug 2016 16:31:38 -0400
+Subject: [PATCH] rtl8xxxu: Handle devices with a smaller LLT buffer
+
+The 8188e (except for I cut parts) seem to have a smaller LLT buffer
+than all other known devices.
+
+Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
+---
+ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 1 +
+ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 1 +
+ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 11 ++++++++---
+ 3 files changed, 10 insertions(+), 3 deletions(-)
+
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
+@@ -1411,6 +1411,7 @@ struct rtl8xxxu_fileops {
+ u8 page_num_hi;
+ u8 page_num_lo;
+ u8 page_num_norm;
++ u8 last_llt_entry;
+ };
+
+ extern int rtl8xxxu_debug;
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
+@@ -1454,4 +1454,5 @@ struct rtl8xxxu_fileops rtl8188eu_fops =
+ .page_num_hi = TX_PAGE_NUM_HI_PQ_8188E,
+ .page_num_lo = TX_PAGE_NUM_LO_PQ_8188E,
+ .page_num_norm = TX_PAGE_NUM_NORM_PQ_8188E,
++ .last_llt_entry = 176,
+ };
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+@@ -2485,11 +2485,16 @@ static int rtl8xxxu_llt_write(struct rtl
+ int rtl8xxxu_init_llt_table(struct rtl8xxxu_priv *priv)
+ {
+ int ret;
+- int i;
++ int i, last_entry;
+ u8 last_tx_page;
+
+ last_tx_page = priv->fops->total_page_num;
+
++ if (priv->fops->last_llt_entry)
++ last_entry = priv->fops->last_llt_entry;
++ else
++ last_entry = 255;
++
+ for (i = 0; i < last_tx_page; i++) {
+ ret = rtl8xxxu_llt_write(priv, i, i + 1);
+ if (ret)
+@@ -2501,14 +2506,14 @@ int rtl8xxxu_init_llt_table(struct rtl8x
+ goto exit;
+
+ /* Mark remaining pages as a ring buffer */
+- for (i = last_tx_page + 1; i < 0xff; i++) {
++ for (i = last_tx_page + 1; i < last_entry; i++) {
+ ret = rtl8xxxu_llt_write(priv, i, (i + 1));
+ if (ret)
+ goto exit;
+ }
+
+ /* Let last entry point to the start entry of ring buffer */
+- ret = rtl8xxxu_llt_write(priv, 0xff, last_tx_page + 1);
++ ret = rtl8xxxu_llt_write(priv, last_entry, last_tx_page + 1);
+ if (ret)
+ goto exit;
+