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rtlwifi: rtl8192de: Fix missing callback that tests for hw release of buffer 

commit 3155db7613 upstream.

In commit 38506ecefa ("rtlwifi: rtl_pci: Start modification for
new drivers"), a callback needed to check if the hardware has released
a buffer indicating that a DMA operation is completed was not added.

Fixes: 38506ecefa ("rtlwifi: rtl_pci: Start modification for new drivers")
Cc: Stable <stable@vger.kernel.org>	# v3.18+
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Larry Finger 2019-11-11 13:40:45 -06:00 committed by Greg Kroah-Hartman
parent d21a09d581
commit ca754b3c4d
3 changed files with 20 additions and 0 deletions
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1
drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c
View File

@ -216,6 +216,7 @@ static struct rtl_hal_ops rtl8192de_hal_ops = {
.led_control = rtl92de_led_control,
.set_desc = rtl92de_set_desc,
.get_desc = rtl92de_get_desc,
.is_tx_desc_closed = rtl92de_is_tx_desc_closed,
.tx_polling = rtl92de_tx_polling,
.enable_hw_sec = rtl92de_enable_hw_security_config,
.set_key = rtl92de_set_key,

17
drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.c
View File

@ -823,6 +823,23 @@ u64 rtl92de_get_desc(struct ieee80211_hw *hw,
return ret;
}
bool rtl92de_is_tx_desc_closed(struct ieee80211_hw *hw,
u8 hw_queue, u16 index)
{
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
u8 *entry = (u8 *)(&ring->desc[ring->idx]);
u8 own = (u8)rtl92de_get_desc(hw, entry, true, HW_DESC_OWN);
/* a beacon packet will only use the first
* descriptor by defaut, and the own bit may not
* be cleared by the hardware
*/
if (own)
return false;
return true;
}
void rtl92de_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);

2
drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.h
View File

@ -715,6 +715,8 @@ void rtl92de_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
u8 desc_name, u8 *val);
u64 rtl92de_get_desc(struct ieee80211_hw *hw,
u8 *p_desc, bool istx, u8 desc_name);
bool rtl92de_is_tx_desc_closed(struct ieee80211_hw *hw,
u8 hw_queue, u16 index);
void rtl92de_tx_polling(struct ieee80211_hw *hw, u8 hw_queue);
void rtl92de_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
bool b_firstseg, bool b_lastseg,