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openwrt/target/linux/generic/backport-6.1/750-v6.5-07-net-ethernet-mt...

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From 856be974290f28d7943be2ac5a382c4139486196 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Tue, 25 Jul 2023 01:52:44 +0100
Subject: [PATCH 101/250] net: ethernet: mtk_eth_soc: rely on MTK_MAX_DEVS and
remove MTK_MAC_COUNT
Get rid of MTK_MAC_COUNT since it is a duplicated of MTK_MAX_DEVS.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/1856f4266f2fc80677807b1bad867659e7b00c65.1690246066.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 49 ++++++++++++---------
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 1 -
2 files changed, 27 insertions(+), 23 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -880,7 +880,7 @@ static void mtk_stats_update(struct mtk_
{
int i;
- for (i = 0; i < MTK_MAC_COUNT; i++) {
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
if (!eth->mac[i] || !eth->mac[i]->hw_stats)
continue;
if (spin_trylock(&eth->mac[i]->hw_stats->stats_lock)) {
@@ -1385,7 +1385,7 @@ static int mtk_queue_stopped(struct mtk_
{
int i;
- for (i = 0; i < MTK_MAC_COUNT; i++) {
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
if (!eth->netdev[i])
continue;
if (netif_queue_stopped(eth->netdev[i]))
@@ -1399,7 +1399,7 @@ static void mtk_wake_queue(struct mtk_et
{
int i;
- for (i = 0; i < MTK_MAC_COUNT; i++) {
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
if (!eth->netdev[i])
continue;
netif_tx_wake_all_queues(eth->netdev[i]);
@@ -1858,7 +1858,7 @@ static int mtk_poll_rx(struct napi_struc
!(trxd.rxd4 & RX_DMA_SPECIAL_TAG))
mac = RX_DMA_GET_SPORT(trxd.rxd4) - 1;
- if (unlikely(mac < 0 || mac >= MTK_MAC_COUNT ||
+ if (unlikely(mac < 0 || mac >= MTK_MAX_DEVS ||
!eth->netdev[mac]))
goto release_desc;
@@ -2898,7 +2898,7 @@ static void mtk_dma_free(struct mtk_eth
const struct mtk_soc_data *soc = eth->soc;
int i;
- for (i = 0; i < MTK_MAC_COUNT; i++)
+ for (i = 0; i < MTK_MAX_DEVS; i++)
if (eth->netdev[i])
netdev_reset_queue(eth->netdev[i]);
if (eth->scratch_ring) {
@@ -3052,8 +3052,13 @@ static void mtk_gdm_config(struct mtk_et
if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628))
return;
- for (i = 0; i < MTK_MAC_COUNT; i++) {
- u32 val = mtk_r32(eth, MTK_GDMA_FWD_CFG(i));
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
+ u32 val;
+
+ if (!eth->netdev[i])
+ continue;
+
+ val = mtk_r32(eth, MTK_GDMA_FWD_CFG(i));
/* default setup the forward port to send frame to PDMA */
val &= ~0xffff;
@@ -3063,7 +3068,7 @@ static void mtk_gdm_config(struct mtk_et
val |= config;
- if (eth->netdev[i] && netdev_uses_dsa(eth->netdev[i]))
+ if (netdev_uses_dsa(eth->netdev[i]))
val |= MTK_GDMA_SPECIAL_TAG;
mtk_w32(eth, val, MTK_GDMA_FWD_CFG(i));
@@ -3660,15 +3665,15 @@ static int mtk_hw_init(struct mtk_eth *e
* up with the more appropriate value when mtk_mac_config call is being
* invoked.
*/
- for (i = 0; i < MTK_MAC_COUNT; i++) {
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
struct net_device *dev = eth->netdev[i];
- mtk_w32(eth, MAC_MCR_FORCE_LINK_DOWN, MTK_MAC_MCR(i));
- if (dev) {
- struct mtk_mac *mac = netdev_priv(dev);
+ if (!dev)
+ continue;
- mtk_set_mcr_max_rx(mac, dev->mtu + MTK_RX_ETH_HLEN);
- }
+ mtk_w32(eth, MAC_MCR_FORCE_LINK_DOWN, MTK_MAC_MCR(i));
+ mtk_set_mcr_max_rx(netdev_priv(dev),
+ dev->mtu + MTK_RX_ETH_HLEN);
}
/* Indicates CDM to parse the MTK special tag from CPU
@@ -3848,7 +3853,7 @@ static void mtk_pending_work(struct work
mtk_prepare_for_reset(eth);
/* stop all devices to make sure that dma is properly shut down */
- for (i = 0; i < MTK_MAC_COUNT; i++) {
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
if (!eth->netdev[i] || !netif_running(eth->netdev[i]))
continue;
@@ -3864,8 +3869,8 @@ static void mtk_pending_work(struct work
mtk_hw_init(eth, true);
/* restart DMA and enable IRQs */
- for (i = 0; i < MTK_MAC_COUNT; i++) {
- if (!test_bit(i, &restart))
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
+ if (!eth->netdev[i] || !test_bit(i, &restart))
continue;
if (mtk_open(eth->netdev[i])) {
@@ -3892,7 +3897,7 @@ static int mtk_free_dev(struct mtk_eth *
{
int i;
- for (i = 0; i < MTK_MAC_COUNT; i++) {
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
if (!eth->netdev[i])
continue;
free_netdev(eth->netdev[i]);
@@ -3911,7 +3916,7 @@ static int mtk_unreg_dev(struct mtk_eth
{
int i;
- for (i = 0; i < MTK_MAC_COUNT; i++) {
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
struct mtk_mac *mac;
if (!eth->netdev[i])
continue;
@@ -4212,7 +4217,7 @@ static int mtk_add_mac(struct mtk_eth *e
}
id = be32_to_cpup(_id);
- if (id >= MTK_MAC_COUNT) {
+ if (id >= MTK_MAX_DEVS) {
dev_err(eth->dev, "%d is not a valid mac id\n", id);
return -EINVAL;
}
@@ -4357,7 +4362,7 @@ void mtk_eth_set_dma_device(struct mtk_e
rtnl_lock();
- for (i = 0; i < MTK_MAC_COUNT; i++) {
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
dev = eth->netdev[i];
if (!dev || !(dev->flags & IFF_UP))
@@ -4663,7 +4668,7 @@ static int mtk_remove(struct platform_de
int i;
/* stop all devices to make sure that dma is properly shut down */
- for (i = 0; i < MTK_MAC_COUNT; i++) {
+ for (i = 0; i < MTK_MAX_DEVS; i++) {
if (!eth->netdev[i])
continue;
mtk_stop(eth->netdev[i]);
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -33,7 +33,6 @@
#define MTK_TX_DMA_BUF_LEN_V2 0xffff
#define MTK_QDMA_RING_SIZE 2048
#define MTK_DMA_SIZE 512
-#define MTK_MAC_COUNT 2
#define MTK_RX_ETH_HLEN (VLAN_ETH_HLEN + ETH_FCS_LEN)
#define MTK_RX_HLEN (NET_SKB_PAD + MTK_RX_ETH_HLEN + NET_IP_ALIGN)
#define MTK_DMA_DUMMY_DESC 0xffffffff
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