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realtek: eth: define hardware receive rings in config

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Do not derive the number of hardware receive rings from the SoC
family. Instead add the information to the configuration
structure. Make use of it during ethernet driver probing.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/21706
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Markus Stockhausen 2026-01-25 21:33:02 +01:00 • committed by Robert Marko
parent 2651a6ced9
commit 428c0c3635
2 changed files with 9 additions and 6 deletions
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14
target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.c
View file

@ -1453,6 +1453,7 @@ static const struct net_device_ops rteth_838x_netdev_ops = {
static const struct rteth_config rteth_838x_cfg = {
.family_id = RTL8380_FAMILY_ID,
.cpu_port = RTETH_838X_CPU_PORT,
.rx_rings = 8,
.net_irq = rteth_83xx_net_irq,
.mac_l2_port_ctrl = RTETH_838X_MAC_L2_PORT_CTRL,
.dma_if_intr_sts = RTL838X_DMA_IF_INTR_STS,
@ -1496,6 +1497,7 @@ static const struct net_device_ops rteth_839x_netdev_ops = {
static const struct rteth_config rteth_839x_cfg = {
.family_id = RTL8390_FAMILY_ID,
.cpu_port = RTETH_839X_CPU_PORT,
.rx_rings = 8,
.net_irq = rteth_83xx_net_irq,
.mac_l2_port_ctrl = RTETH_839X_MAC_L2_PORT_CTRL,
.dma_if_intr_sts = RTL839X_DMA_IF_INTR_STS,
@ -1539,6 +1541,7 @@ static const struct net_device_ops rteth_930x_netdev_ops = {
static const struct rteth_config rteth_930x_cfg = {
.family_id = RTL9300_FAMILY_ID,
.cpu_port = RTETH_930X_CPU_PORT,
.rx_rings = 32,
.net_irq = rteth_93xx_net_irq,
.mac_l2_port_ctrl = RTETH_930X_MAC_L2_PORT_CTRL,
.dma_if_intr_rx_runout_sts = RTL930X_DMA_IF_INTR_RX_RUNOUT_STS,
@ -1587,6 +1590,7 @@ static const struct net_device_ops rteth_931x_netdev_ops = {
static const struct rteth_config rteth_931x_cfg = {
.family_id = RTL9310_FAMILY_ID,
.cpu_port = RTETH_931X_CPU_PORT,
.rx_rings = 32,
.net_irq = rteth_93xx_net_irq,
.mac_l2_port_ctrl = RTETH_931X_MAC_L2_PORT_CTRL,
.dma_if_intr_rx_runout_sts = RTL931X_DMA_IF_INTR_RX_RUNOUT_STS,
@ -1643,7 +1647,7 @@ static int rtl838x_eth_probe(struct platform_device *pdev)
struct net_device *dev;
struct device_node *dn = pdev->dev.of_node;
struct rteth_ctrl *ctrl;
const struct rteth_config *matchdata;
const struct rteth_config *cfg;
phy_interface_t phy_mode;
struct phylink *phylink;
u8 mac_addr[ETH_ALEN] = {0};
@ -1658,11 +1662,9 @@ static int rtl838x_eth_probe(struct platform_device *pdev)
return -EINVAL;
}
matchdata = (const struct rteth_config *)device_get_match_data(&pdev->dev);
cfg = device_get_match_data(&pdev->dev);
rxrings = (matchdata->family_id == RTL8380_FAMILY_ID ||
matchdata->family_id == RTL8390_FAMILY_ID) ? 8 : 32;
rxrings = rxrings > MAX_RXRINGS ? MAX_RXRINGS : rxrings;
rxrings = cfg->rx_rings > MAX_RXRINGS ? MAX_RXRINGS : cfg->rx_rings;
rxringlen = MAX_ENTRIES / rxrings;
rxringlen = rxringlen > MAX_RXLEN ? MAX_RXLEN : rxringlen;
@ -1671,7 +1673,7 @@ static int rtl838x_eth_probe(struct platform_device *pdev)
return -ENOMEM;
SET_NETDEV_DEV(dev, &pdev->dev);
ctrl = netdev_priv(dev);
ctrl->r = matchdata;
ctrl->r = cfg;
/* Allocate buffer memory */
ctrl->membase = dmam_alloc_coherent(&pdev->dev, rxrings * rxringlen * RING_BUFFER +

1
target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.h
View file

@ -408,6 +408,7 @@ struct rteth_packet;
struct rteth_config {
int family_id;
int cpu_port;
int rx_rings;
irqreturn_t (*net_irq)(int irq, void *dev_id);
int mac_l2_port_ctrl;
int dma_if_intr_sts;