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Message-Id: <20230118065504.3075474-11-jiawenwu@trustnetic.com>
Date: Wed, 18 Jan 2023 14:55:04 +0800
From: Jiawen Wu <jiawenwu@...stnetic.com>
To: netdev@...r.kernel.org, mengyuanlou@...-swift.com
Subject: [PATCH net-next 10/10] net: ngbe: Support Rx and Tx process path
From: Mengyuan Lou <mengyuanlou@...-swift.com>
Add enable and disable operation process for ngbe open/close.
Clean Rx and Tx ring interrupts, process packets in the data path.
Signed-off-by: Mengyuan Lou <mengyuanlou@...-swift.com>
---
drivers/net/ethernet/wangxun/ngbe/ngbe_main.c | 70 +++++++++++++++----
drivers/net/ethernet/wangxun/ngbe/ngbe_type.h | 4 ++
2 files changed, 61 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
index a9772f929274..f94d415daf3c 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
@@ -113,6 +113,9 @@ static int ngbe_sw_init(struct wx *wx)
wx->mac.num_rar_entries = NGBE_RAR_ENTRIES;
wx->mac.max_rx_queues = NGBE_MAX_RX_QUEUES;
wx->mac.max_tx_queues = NGBE_MAX_TX_QUEUES;
+ wx->mac.mcft_size = NGBE_MC_TBL_SIZE;
+ wx->mac.rx_pb_size = NGBE_RX_PB_SIZE;
+ wx->mac.tx_pb_size = NGBE_TDB_PB_SZ;
/* PCI config space info */
err = wx_sw_init(wx);
@@ -307,25 +310,46 @@ static int ngbe_request_irq(struct wx *wx)
static void ngbe_disable_device(struct wx *wx)
{
struct net_device *netdev = wx->netdev;
+ u32 i;
+ /* disable all enabled rx queues */
+ for (i = 0; i < wx->num_rx_queues; i++)
+ /* this call also flushes the previous write */
+ wx_disable_rx_queue(wx, wx->rx_ring[i]);
/* disable receives */
wx_disable_rx(wx);
+ wx_napi_disable_all(wx);
+ netif_tx_stop_all_queues(netdev);
netif_tx_disable(netdev);
if (wx->gpio_ctrl)
ngbe_sfp_modules_txrx_powerctl(wx, false);
wx_irq_disable(wx);
+ /* disable transmits in the hardware now that interrupts are off */
+ for (i = 0; i < wx->num_tx_queues; i++) {
+ u8 reg_idx = wx->tx_ring[i]->reg_idx;
+
+ wr32(wx, WX_PX_TR_CFG(reg_idx), WX_PX_TR_CFG_SWFLSH);
+ }
}
static void ngbe_down(struct wx *wx)
{
phy_stop(wx->phydev);
ngbe_disable_device(wx);
+ wx_clean_all_tx_rings(wx);
+ wx_clean_all_rx_rings(wx);
}
static void ngbe_up(struct wx *wx)
{
wx_configure_vectors(wx);
+ /* make sure to complete pre-operations */
+ smp_mb__before_atomic();
+ wx_napi_enable_all(wx);
+ /* enable transmits */
+ netif_tx_start_all_queues(wx->netdev);
+
/* clear any pending interrupts, may auto mask */
rd32(wx, WX_PX_IC);
rd32(wx, WX_PX_MISC_IC);
@@ -352,7 +376,7 @@ static int ngbe_open(struct net_device *netdev)
wx_control_hw(wx, true);
- err = wx_setup_isb_resources(wx);
+ err = wx_setup_resources(wx);
if (err)
return err;
@@ -360,16 +384,29 @@ static int ngbe_open(struct net_device *netdev)
err = ngbe_request_irq(wx);
if (err)
- goto err_req_irq;
+ goto err_free_resources;
err = ngbe_phy_connect(wx);
if (err)
- return err;
+ goto err_free_irq;
+
+ err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues);
+ if (err)
+ goto err_dis_phy;
+
+ err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues);
+ if (err)
+ goto err_dis_phy;
+
ngbe_up(wx);
return 0;
-err_req_irq:
- wx_free_isb_resources(wx);
+err_dis_phy:
+ phy_disconnect(wx->phydev);
+err_free_irq:
+ wx_free_irq(wx);
+err_free_resources:
+ wx_free_resources(wx);
return err;
}
@@ -390,19 +427,13 @@ static int ngbe_close(struct net_device *netdev)
ngbe_down(wx);
wx_free_irq(wx);
- wx_free_isb_resources(wx);
+ wx_free_resources(wx);
phy_disconnect(wx->phydev);
wx_control_hw(wx, false);
return 0;
}
-static netdev_tx_t ngbe_xmit_frame(struct sk_buff *skb,
- struct net_device *netdev)
-{
- return NETDEV_TX_OK;
-}
-
static void ngbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake)
{
struct wx *wx = pci_get_drvdata(pdev);
@@ -438,9 +469,11 @@ static void ngbe_shutdown(struct pci_dev *pdev)
static const struct net_device_ops ngbe_netdev_ops = {
.ndo_open = ngbe_open,
.ndo_stop = ngbe_close,
- .ndo_start_xmit = ngbe_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,
};
/**
@@ -516,6 +549,17 @@ static int ngbe_probe(struct pci_dev *pdev,
netdev->netdev_ops = &ngbe_netdev_ops;
netdev->features |= NETIF_F_HIGHDMA;
+ netdev->features = NETIF_F_SG;
+
+ /* copy netdev features into list of user selectable features */
+ netdev->hw_features |= netdev->features |
+ NETIF_F_RXALL;
+
+ netdev->priv_flags |= IFF_UNICAST_FLT;
+ netdev->priv_flags |= IFF_SUPP_NOFCS;
+
+ netdev->min_mtu = ETH_MIN_MTU;
+ netdev->max_mtu = NGBE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN);
wx->bd_number = func_nums;
/* setup the private structure */
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h b/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
index b60f5f0f64fa..a2351349785e 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
@@ -134,6 +134,10 @@ enum NGBE_MSCA_CMD_value {
#define NGBE_ETH_LENGTH_OF_ADDRESS 6
#define NGBE_MAX_MSIX_VECTORS 0x09
#define NGBE_RAR_ENTRIES 32
+#define NGBE_RX_PB_SIZE 42
+#define NGBE_MC_TBL_SIZE 128
+#define NGBE_TDB_PB_SZ (20 * 1024) /* 160KB Packet Buffer */
+#define NGBE_MAX_JUMBO_FRAME_SIZE 9432 /* max payload 9414 */
/* TX/RX descriptor defines */
#define NGBE_DEFAULT_TXD 512 /* default ring size */
--
2.27.0
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