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Message-ID: <ed7bc852-df26-80e7-0a39-55b909463098@gmail.com>
Date: Sat, 30 May 2020 23:57:10 +0200
From: Heiner Kallweit <hkallweit1@...il.com>
To: Realtek linux nic maintainers <nic_swsd@...ltek.com>,
David Miller <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH net-next 4/6] r8169: move some calls to rtl8169_hw_reset
Move calls that are needed before and after calling rtl8169_hw_reset()
into this function. This requires to move the function in the code.
Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
drivers/net/ethernet/realtek/r8169_main.c | 75 +++++++++++------------
1 file changed, 36 insertions(+), 39 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 43652c450..5f3c50fb0 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -2530,36 +2530,6 @@ static void rtl_enable_rxdvgate(struct rtl8169_private *tp)
rtl_wait_txrx_fifo_empty(tp);
}
-static void rtl8169_hw_reset(struct rtl8169_private *tp)
-{
- /* Disable interrupts */
- rtl8169_irq_mask_and_ack(tp);
-
- rtl_rx_close(tp);
-
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_27:
- case RTL_GIGA_MAC_VER_28:
- case RTL_GIGA_MAC_VER_31:
- rtl_loop_wait_low(tp, &rtl_npq_cond, 20, 2000);
- break;
- case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_38:
- RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
- rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 666);
- break;
- case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_61:
- rtl_enable_rxdvgate(tp);
- fsleep(2000);
- break;
- default:
- RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
- udelay(100);
- break;
- }
-
- rtl_hw_reset(tp);
-}
-
static void rtl_set_tx_config_registers(struct rtl8169_private *tp)
{
u32 val = TX_DMA_BURST << TxDMAShift |
@@ -3958,6 +3928,42 @@ static void rtl8169_tx_clear(struct rtl8169_private *tp)
netdev_reset_queue(tp->dev);
}
+static void rtl8169_hw_reset(struct rtl8169_private *tp)
+{
+ /* Give a racing hard_start_xmit a few cycles to complete. */
+ synchronize_rcu();
+
+ /* Disable interrupts */
+ rtl8169_irq_mask_and_ack(tp);
+
+ rtl_rx_close(tp);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_27:
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ rtl_loop_wait_low(tp, &rtl_npq_cond, 20, 2000);
+ break;
+ case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_38:
+ RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
+ rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 666);
+ break;
+ case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_61:
+ rtl_enable_rxdvgate(tp);
+ fsleep(2000);
+ break;
+ default:
+ RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
+ fsleep(100);
+ break;
+ }
+
+ rtl_hw_reset(tp);
+
+ rtl8169_tx_clear(tp);
+ rtl8169_init_ring_indexes(tp);
+}
+
static void rtl_reset_work(struct rtl8169_private *tp)
{
struct net_device *dev = tp->dev;
@@ -3965,16 +3971,12 @@ static void rtl_reset_work(struct rtl8169_private *tp)
napi_disable(&tp->napi);
netif_stop_queue(dev);
- synchronize_rcu();
rtl8169_hw_reset(tp);
for (i = 0; i < NUM_RX_DESC; i++)
rtl8169_mark_to_asic(tp->RxDescArray + i);
- rtl8169_tx_clear(tp);
- rtl8169_init_ring_indexes(tp);
-
napi_enable(&tp->napi);
rtl_hw_start(tp);
netif_wake_queue(dev);
@@ -4636,11 +4638,6 @@ static void rtl8169_down(struct net_device *dev)
rtl8169_hw_reset(tp);
- /* Give a racing hard_start_xmit a few cycles to complete. */
- synchronize_rcu();
-
- rtl8169_tx_clear(tp);
-
rtl8169_rx_clear(tp);
rtl_pll_power_down(tp);
--
2.26.2
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