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Date: Fri, 3 Feb 2023 17:11:34 +0800
From: Jiawen Wu <jiawenwu@...stnetic.com>
To: netdev@...r.kernel.org, mengyuanlou@...-swift.com
Cc: Jiawen Wu <jiawenwu@...stnetic.com>
Subject: [PATCH net-next v3 09/10] net: txgbe: Support Rx and Tx process path
Clean Rx and Tx ring interrupts, process packets in the data path.
Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>
---
.../net/ethernet/wangxun/txgbe/txgbe_main.c | 37 ++++++++++++++-----
1 file changed, 28 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
index 3b50acb09699..094df377726b 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
@@ -223,6 +223,10 @@ static void txgbe_up_complete(struct wx *wx)
wx_control_hw(wx, true);
wx_configure_vectors(wx);
+ /* make sure to complete pre-operations */
+ smp_mb__before_atomic();
+ wx_napi_enable_all(wx);
+
/* clear any pending interrupts, may auto mask */
rd32(wx, WX_PX_IC);
rd32(wx, WX_PX_MISC_IC);
@@ -236,6 +240,10 @@ static void txgbe_up_complete(struct wx *wx)
wr32(wx, WX_MAC_WDG_TIMEOUT, reg);
reg = rd32(wx, WX_MAC_TX_CFG);
wr32(wx, WX_MAC_TX_CFG, (reg & ~WX_MAC_TX_CFG_SPEED_MASK) | WX_MAC_TX_CFG_SPEED_10G);
+
+ /* enable transmits */
+ netif_tx_start_all_queues(wx->netdev);
+ netif_carrier_on(wx->netdev);
}
static void txgbe_reset(struct wx *wx)
@@ -268,10 +276,12 @@ static void txgbe_disable_device(struct wx *wx)
/* this call also flushes the previous write */
wx_disable_rx_queue(wx, wx->rx_ring[i]);
+ netif_tx_stop_all_queues(netdev);
netif_carrier_off(netdev);
netif_tx_disable(netdev);
wx_irq_disable(wx);
+ wx_napi_disable_all(wx);
if (wx->bus.func < 2)
wr32m(wx, TXGBE_MIS_PRB_CTL, TXGBE_MIS_PRB_CTL_LAN_UP(wx->bus.func), 0);
@@ -300,6 +310,9 @@ static void txgbe_down(struct wx *wx)
{
txgbe_disable_device(wx);
txgbe_reset(wx);
+
+ wx_clean_all_tx_rings(wx);
+ wx_clean_all_rx_rings(wx);
}
/**
@@ -381,10 +394,21 @@ static int txgbe_open(struct net_device *netdev)
if (err)
goto err_free_isb;
+ /* Notify the stack of the actual queue counts. */
+ err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues);
+ if (err)
+ goto err_free_irq;
+
+ err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues);
+ if (err)
+ goto err_free_irq;
+
txgbe_up_complete(wx);
return 0;
+err_free_irq:
+ wx_free_irq(wx);
err_free_isb:
wx_free_isb_resources(wx);
err_reset:
@@ -403,8 +427,6 @@ static int txgbe_open(struct net_device *netdev)
static void txgbe_close_suspend(struct wx *wx)
{
txgbe_disable_device(wx);
-
- wx_free_irq(wx);
wx_free_resources(wx);
}
@@ -461,19 +483,14 @@ static void txgbe_shutdown(struct pci_dev *pdev)
}
}
-static netdev_tx_t txgbe_xmit_frame(struct sk_buff *skb,
- struct net_device *netdev)
-{
- return NETDEV_TX_OK;
-}
-
static const struct net_device_ops txgbe_netdev_ops = {
.ndo_open = txgbe_open,
.ndo_stop = txgbe_close,
- .ndo_start_xmit = txgbe_xmit_frame,
+ .ndo_start_xmit = wx_xmit_frame,
.ndo_set_rx_mode = wx_set_rx_mode,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = wx_set_mac,
+ .ndo_get_stats64 = wx_get_stats64,
};
/**
@@ -647,6 +664,8 @@ static int txgbe_probe(struct pci_dev *pdev,
pci_set_drvdata(pdev, wx);
+ netif_tx_stop_all_queues(netdev);
+
/* calculate the expected PCIe bandwidth required for optimal
* performance. Note that some older parts will never have enough
* bandwidth due to being older generation PCIe parts. We clamp these
--
2.27.0
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