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rtlwifi: rtl_pci: Fix the bug when inactiveps is enabled.

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[ Upstream commit b7573a0a27 ]

Reset the driver current tx read/write index to zero when inactiveps
nic out of sync with HW state. Wrong driver tx read/write index will
cause Tx fail.

Signed-off-by: Tsang-Shian Lin <thlin@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tsang-Shian Lin
2017-12-09 11:37:10 -06:00
committed by Greg Kroah-Hartman
parent 7c06c3dd3a
commit 1f13ef920a
1 changed files with 7 additions and 0 deletions
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7
drivers/net/wireless/realtek/rtlwifi/pci.c
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@@ -1572,7 +1572,14 @@ int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw)
dev_kfree_skb_irq(skb);
ring->idx = (ring->idx + 1) % ring->entries;
}
if (rtlpriv->use_new_trx_flow) {
rtlpci->tx_ring[i].cur_tx_rp = 0;
rtlpci->tx_ring[i].cur_tx_wp = 0;
}
ring->idx = 0;
ring->entries = rtlpci->txringcount[i];
}
}
spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);