Thread (16 messages) 16 messages, 3 authors, 2023-01-23
STALE1246d
Revisions (2)
  1. v1 current
  2. v3 [diff vs current]

[PATCH net-next 06/10] net: txgbe: Setup Rx and Tx ring

From: Jiawen Wu <jiawenwu@trustnetic.com>
Date: 2023-01-18 07:39:37
Subsystem: networking drivers, the rest, wangxun ethernet driver · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Jiawen Wu, Mengyuan Lou

Improve the configuration of Rx and Tx ring, set Rx flags and implement
ndo_set_rx_mode ops.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
---
 drivers/net/ethernet/wangxun/libwx/wx_type.h  |  1 +
 .../net/ethernet/wangxun/txgbe/txgbe_main.c   | 43 +++++++++++++++++--
 .../net/ethernet/wangxun/txgbe/txgbe_type.h   |  3 ++
 3 files changed, 44 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_type.h b/drivers/net/ethernet/wangxun/libwx/wx_type.h
index 1863c6cbc6c6..7b247af0ff17 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_type.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_type.h
@@ -200,6 +200,7 @@
 #define WX_MAC_TX_CFG                0x11000
 #define WX_MAC_TX_CFG_TE             BIT(0)
 #define WX_MAC_TX_CFG_SPEED_MASK     GENMASK(30, 29)
+#define WX_MAC_TX_CFG_SPEED_10G      FIELD_PREP(WX_MAC_TX_CFG_SPEED_MASK, 0)
 #define WX_MAC_TX_CFG_SPEED_1G       FIELD_PREP(WX_MAC_TX_CFG_SPEED_MASK, 3)
 #define WX_MAC_RX_CFG                0x11004
 #define WX_MAC_RX_CFG_RE             BIT(0)
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
index 48cca2fb54c7..3b50acb09699 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
@@ -218,6 +218,8 @@ static int txgbe_request_irq(struct wx *wx)
 
 static void txgbe_up_complete(struct wx *wx)
 {
+	u32 reg;
+
 	wx_control_hw(wx, true);
 	wx_configure_vectors(wx);
 
@@ -225,6 +227,15 @@ static void txgbe_up_complete(struct wx *wx)
 	rd32(wx, WX_PX_IC);
 	rd32(wx, WX_PX_MISC_IC);
 	txgbe_irq_enable(wx, true);
+
+	/* Configure MAC Rx and Tx when link is up */
+	reg = rd32(wx, WX_MAC_RX_CFG);
+	wr32(wx, WX_MAC_RX_CFG, reg);
+	wr32(wx, WX_MAC_PKT_FLT, WX_MAC_PKT_FLT_PR);
+	reg = rd32(wx, WX_MAC_WDG_TIMEOUT);
+	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);
 }
 
 static void txgbe_reset(struct wx *wx)
@@ -246,11 +257,17 @@ static void txgbe_reset(struct wx *wx)
 static void txgbe_disable_device(struct wx *wx)
 {
 	struct net_device *netdev = wx->netdev;
+	u32 i;
 
 	wx_disable_pcie_master(wx);
 	/* disable receives */
 	wx_disable_rx(wx);
 
+	/* 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]);
+
 	netif_carrier_off(netdev);
 	netif_tx_disable(netdev);
 
@@ -268,6 +285,13 @@ static void txgbe_disable_device(struct wx *wx)
 		wr32m(wx, WX_MAC_TX_CFG, WX_MAC_TX_CFG_TE, 0);
 	}
 
+	/* 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);
+	}
+
 	/* Disable the Tx DMA engine */
 	wr32m(wx, WX_TDM_CTL, WX_TDM_CTL_TE, 0);
 }
@@ -291,6 +315,8 @@ static int txgbe_sw_init(struct wx *wx)
 	wx->mac.max_tx_queues = TXGBE_SP_MAX_TX_QUEUES;
 	wx->mac.max_rx_queues = TXGBE_SP_MAX_RX_QUEUES;
 	wx->mac.mcft_size = TXGBE_SP_MC_TBL_SIZE;
+	wx->mac.rx_pb_size = TXGBE_SP_RX_PB_SIZE;
+	wx->mac.tx_pb_size = TXGBE_SP_TDB_PB_SZ;
 
 	/* PCI config space info */
 	err = wx_sw_init(wx);
@@ -345,7 +371,7 @@ static int txgbe_open(struct net_device *netdev)
 	struct wx *wx = netdev_priv(netdev);
 	int err;
 
-	err = wx_setup_isb_resources(wx);
+	err = wx_setup_resources(wx);
 	if (err)
 		goto err_reset;
 
@@ -379,7 +405,7 @@ static void txgbe_close_suspend(struct wx *wx)
 	txgbe_disable_device(wx);
 
 	wx_free_irq(wx);
-	wx_free_isb_resources(wx);
+	wx_free_resources(wx);
 }
 
 /**
@@ -399,7 +425,7 @@ static int txgbe_close(struct net_device *netdev)
 
 	txgbe_down(wx);
 	wx_free_irq(wx);
-	wx_free_isb_resources(wx);
+	wx_free_resources(wx);
 	wx_control_hw(wx, false);
 
 	return 0;
@@ -445,6 +471,7 @@ static const struct net_device_ops txgbe_netdev_ops = {
 	.ndo_open               = txgbe_open,
 	.ndo_stop               = txgbe_close,
 	.ndo_start_xmit         = txgbe_xmit_frame,
+	.ndo_set_rx_mode        = wx_set_rx_mode,
 	.ndo_validate_addr      = eth_validate_addr,
 	.ndo_set_mac_address    = wx_set_mac,
 };
@@ -549,6 +576,16 @@ static int txgbe_probe(struct pci_dev *pdev,
 	}
 
 	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 = TXGBE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN);
 
 	/* make sure the EEPROM is good */
 	err = txgbe_validate_eeprom_checksum(wx, NULL);
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
index ec28cf60c91d..563ea51deca6 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
@@ -77,6 +77,9 @@
 #define TXGBE_SP_MAX_RX_QUEUES  128
 #define TXGBE_SP_RAR_ENTRIES    128
 #define TXGBE_SP_MC_TBL_SIZE    128
+#define TXGBE_SP_RX_PB_SIZE     512
+#define TXGBE_SP_TDB_PB_SZ      (160 * 1024) /* 160KB Packet Buffer */
+#define TXGBE_MAX_JUMBO_FRAME_SIZE      9432 /* max payload 9414 */
 
 /* TX/RX descriptor defines */
 #define TXGBE_DEFAULT_TXD               512
-- 
2.27.0
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