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r8169: move some calls to rtl8169_hw_reset
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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@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Heiner Kallweit authored and David S. Miller committed May 31, 2020
1 parent 9fdd50c commit bac75d8
Showing 1 changed file with 36 additions and 39 deletions.
75 changes: 36 additions & 39 deletions drivers/net/ethernet/realtek/r8169_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -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 |
Expand Down Expand Up @@ -3958,23 +3928,55 @@ 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;
int i;

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);
Expand Down Expand Up @@ -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);
Expand Down

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