diff options
| author |   Heiner Kallweit <hkallweit1@gmail.com> | 2020-06-03 22:29:06 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-06-04 15:51:54 -0700 |
| commit | 120068481405f9e3d60a95bd464496dff6b54669 (patch) | |
| tree | 78a9183f488fce084f47298a1d5fc88cdb31e284 /drivers/net | |
| parent | net: ethernet: dwmac: Fix an error code in imx_dwmac_probe() (diff) | |
| download | wireguard-linux-120068481405f9e3d60a95bd464496dff6b54669.tar.xz wireguard-linux-120068481405f9e3d60a95bd464496dff6b54669.zip | |
r8169: fix failing WoL
Th referenced change added an extra hw reset to rtl8169_net_suspend()
what makes WoL fail on few chip versions. Therefore skip the extra
reset if we're going down and WoL is enabled.
In rtl_shutdown() rtl8169_hw_reset() is called by rtl8169_net_suspend()
already if needed, therefore avoid issues issue by removing the extra
call. The fix was tested on a system with RTL8168g.
Meanwhile rtl8169_hw_reset() does more than a hw reset and should be
renamed. But that's net-next material.
Fixes: 8ac8e8c64b53 ("r8169: make rtl8169_down central chip quiesce function")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 4d2ec9742cee..dad84ecf5a77 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -3928,7 +3928,7 @@ static void rtl8169_tx_clear(struct rtl8169_private *tp) netdev_reset_queue(tp->dev); } -static void rtl8169_hw_reset(struct rtl8169_private *tp) +static void rtl8169_hw_reset(struct rtl8169_private *tp, bool going_down) { /* Give a racing hard_start_xmit a few cycles to complete. */ synchronize_rcu(); @@ -3938,6 +3938,9 @@ static void rtl8169_hw_reset(struct rtl8169_private *tp) rtl_rx_close(tp); + if (going_down && tp->dev->wol_enabled) + goto no_reset; + switch (tp->mac_version) { case RTL_GIGA_MAC_VER_27: case RTL_GIGA_MAC_VER_28: @@ -3959,7 +3962,7 @@ static void rtl8169_hw_reset(struct rtl8169_private *tp) } rtl_hw_reset(tp); - +no_reset: rtl8169_tx_clear(tp); rtl8169_init_ring_indexes(tp); } @@ -3972,7 +3975,7 @@ static void rtl_reset_work(struct rtl8169_private *tp) napi_disable(&tp->napi); netif_stop_queue(dev); - rtl8169_hw_reset(tp); + rtl8169_hw_reset(tp, false); for (i = 0; i < NUM_RX_DESC; i++) rtl8169_mark_to_asic(tp->RxDescArray + i); @@ -4637,7 +4640,7 @@ static void rtl8169_down(struct rtl8169_private *tp) phy_stop(tp->phydev); napi_disable(&tp->napi); - rtl8169_hw_reset(tp); + rtl8169_hw_reset(tp, true); rtl_pll_power_down(tp); @@ -4942,8 +4945,6 @@ static void rtl_shutdown(struct pci_dev *pdev) /* Restore original MAC address */ rtl_rar_set(tp, tp->dev->perm_addr); - rtl8169_hw_reset(tp); - if (system_state == SYSTEM_POWER_OFF) { if (tp->saved_wolopts) { rtl_wol_suspend_quirk(tp); |