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