From: Lorenzo Bianconi <lorenzo@kernel.org>
To: Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Lorenzo Bianconi <lorenzo@kernel.org>
Cc: Christian Marangi <ansuelsmth@gmail.com>,
Benjamin Larsson <benjamin.larsson@genexis.eu>,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, netdev@vger.kernel.org,
devicetree@vger.kernel.org, Xuegang Lu <xuegang.lu@airoha.com>
Subject: [PATCH net-next v3 07/12] net: airoha: Move airoha_qdma pointer in airoha_gdm_dev struct
Date: Mon, 06 Apr 2026 12:34:12 +0200 [thread overview]
Message-ID: <20260406-airoha-eth-multi-serdes-v3-7-ab6ea49d59ff@kernel.org> (raw)
In-Reply-To: <20260406-airoha-eth-multi-serdes-v3-0-ab6ea49d59ff@kernel.org>
Move airoha_qdma pointer from airoha_gdm_port struct to airoha_gdm_dev
one since the QDMA block used depends on the particular net_device
WAN/LAN configuration and in the current codebase net_device pointer is
associated to airoha_gdm_dev struct.
This is a preliminary patch to support multiple net_devices connected
to the same GDM{3,4} port via an external hw arbiter.
Tested-by: Xuegang Lu <xuegang.lu@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/airoha/airoha_eth.c | 98 +++++++++++++++-----------------
drivers/net/ethernet/airoha/airoha_eth.h | 9 ++-
drivers/net/ethernet/airoha/airoha_ppe.c | 17 +++---
3 files changed, 59 insertions(+), 65 deletions(-)
diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index c2fc4967c340..716b73f0dff4 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -71,9 +71,10 @@ static void airoha_qdma_irq_disable(struct airoha_irq_bank *irq_bank,
airoha_qdma_set_irqmask(irq_bank, index, mask, 0);
}
-static void airoha_set_macaddr(struct airoha_gdm_port *port, const u8 *addr)
+static void airoha_set_macaddr(struct airoha_gdm_dev *dev, const u8 *addr)
{
- struct airoha_eth *eth = port->qdma->eth;
+ struct airoha_gdm_port *port = dev->port;
+ struct airoha_eth *eth = dev->eth;
u32 val, reg;
reg = airoha_is_lan_gdm_port(port) ? REG_FE_LAN_MAC_H
@@ -85,7 +86,7 @@ static void airoha_set_macaddr(struct airoha_gdm_port *port, const u8 *addr)
airoha_fe_wr(eth, REG_FE_MAC_LMIN(reg), val);
airoha_fe_wr(eth, REG_FE_MAC_LMAX(reg), val);
- airoha_ppe_init_upd_mem(port);
+ airoha_ppe_init_upd_mem(dev);
}
static void airoha_set_gdm_port_fwd_cfg(struct airoha_eth *eth, u32 addr,
@@ -101,10 +102,10 @@ static void airoha_set_gdm_port_fwd_cfg(struct airoha_eth *eth, u32 addr,
FIELD_PREP(GDM_UCFQ_MASK, val));
}
-static int airoha_set_vip_for_gdm_port(struct airoha_gdm_port *port,
- bool enable)
+static int airoha_set_vip_for_gdm_port(struct airoha_gdm_dev *dev, bool enable)
{
- struct airoha_eth *eth = port->qdma->eth;
+ struct airoha_gdm_port *port = dev->port;
+ struct airoha_eth *eth = dev->eth;
u32 vip_port;
switch (port->id) {
@@ -1497,9 +1498,10 @@ static void airoha_qdma_stop_napi(struct airoha_qdma *qdma)
}
}
-static void airoha_update_hw_stats(struct airoha_gdm_port *port)
+static void airoha_update_hw_stats(struct airoha_gdm_dev *dev)
{
- struct airoha_eth *eth = port->qdma->eth;
+ struct airoha_gdm_port *port = dev->port;
+ struct airoha_eth *eth = dev->eth;
u32 val, i = 0;
spin_lock(&port->stats.lock);
@@ -1646,11 +1648,11 @@ static int airoha_dev_open(struct net_device *netdev)
int err, len = ETH_HLEN + netdev->mtu + ETH_FCS_LEN;
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_gdm_port *port = dev->port;
- struct airoha_qdma *qdma = port->qdma;
+ struct airoha_qdma *qdma = dev->qdma;
u32 pse_port = FE_PSE_PORT_PPE1;
netif_tx_start_all_queues(netdev);
- err = airoha_set_vip_for_gdm_port(port, true);
+ err = airoha_set_vip_for_gdm_port(dev, true);
if (err)
return err;
@@ -1686,11 +1688,11 @@ static int airoha_dev_stop(struct net_device *netdev)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_gdm_port *port = dev->port;
- struct airoha_qdma *qdma = port->qdma;
+ struct airoha_qdma *qdma = dev->qdma;
int i, err;
netif_tx_disable(netdev);
- err = airoha_set_vip_for_gdm_port(port, false);
+ err = airoha_set_vip_for_gdm_port(dev, false);
if (err)
return err;
@@ -1719,21 +1721,21 @@ static int airoha_dev_stop(struct net_device *netdev)
static int airoha_dev_set_macaddr(struct net_device *netdev, void *p)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
- struct airoha_gdm_port *port = dev->port;
int err;
err = eth_mac_addr(netdev, p);
if (err)
return err;
- airoha_set_macaddr(port, netdev->dev_addr);
+ airoha_set_macaddr(dev, netdev->dev_addr);
return 0;
}
-static int airoha_set_gdm2_loopback(struct airoha_gdm_port *port)
+static int airoha_set_gdm2_loopback(struct airoha_gdm_dev *dev)
{
- struct airoha_eth *eth = port->qdma->eth;
+ struct airoha_gdm_port *port = dev->port;
+ struct airoha_eth *eth = dev->eth;
u32 val, pse_port, chan, nbq;
int i, src_port;
@@ -1780,7 +1782,7 @@ static int airoha_set_gdm2_loopback(struct airoha_gdm_port *port)
__field_prep(SP_CPORT_MASK(val), FE_PSE_PORT_CDM2));
for (i = 0; i < eth->soc->num_ppe; i++)
- airoha_ppe_set_cpu_port(port, i, AIROHA_GDM2_IDX);
+ airoha_ppe_set_cpu_port(dev, i, AIROHA_GDM2_IDX);
if (port->id == AIROHA_GDM4_IDX && airoha_is_7581(eth)) {
u32 mask = FC_ID_OF_SRC_PORT_MASK(nbq);
@@ -1800,9 +1802,9 @@ static int airoha_dev_init(struct net_device *netdev)
int i;
/* QDMA0 is used for lan ports while QDMA1 is used for WAN ports */
- port->qdma = ð->qdma[!airoha_is_lan_gdm_port(port)];
- dev->dev->irq = port->qdma->irq_banks[0].irq;
- airoha_set_macaddr(port, netdev->dev_addr);
+ dev->qdma = ð->qdma[!airoha_is_lan_gdm_port(port)];
+ dev->dev->irq = dev->qdma->irq_banks[0].irq;
+ airoha_set_macaddr(dev, netdev->dev_addr);
switch (port->id) {
case AIROHA_GDM3_IDX:
@@ -1811,7 +1813,7 @@ static int airoha_dev_init(struct net_device *netdev)
if (!eth->ports[1]) {
int err;
- err = airoha_set_gdm2_loopback(port);
+ err = airoha_set_gdm2_loopback(dev);
if (err)
return err;
}
@@ -1821,8 +1823,7 @@ static int airoha_dev_init(struct net_device *netdev)
}
for (i = 0; i < eth->soc->num_ppe; i++)
- airoha_ppe_set_cpu_port(port, i,
- airoha_get_fe_port(port));
+ airoha_ppe_set_cpu_port(dev, i, airoha_get_fe_port(dev));
return 0;
}
@@ -1834,7 +1835,7 @@ static void airoha_dev_get_stats64(struct net_device *netdev,
struct airoha_gdm_port *port = dev->port;
unsigned int start;
- airoha_update_hw_stats(port);
+ airoha_update_hw_stats(dev);
do {
start = u64_stats_fetch_begin(&port->stats.syncp);
storage->rx_packets = port->stats.rx_ok_pkts;
@@ -1854,8 +1855,8 @@ static int airoha_dev_change_mtu(struct net_device *netdev, int mtu)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_gdm_port *port = dev->port;
- struct airoha_eth *eth = port->qdma->eth;
u32 len = ETH_HLEN + mtu + ETH_FCS_LEN;
+ struct airoha_eth *eth = dev->eth;
airoha_fe_rmw(eth, REG_GDM_LEN_CFG(port->id),
GDM_LONG_LEN_MASK,
@@ -1929,10 +1930,10 @@ static u32 airoha_get_dsa_tag(struct sk_buff *skb, struct net_device *dev)
#endif
}
-int airoha_get_fe_port(struct airoha_gdm_port *port)
+int airoha_get_fe_port(struct airoha_gdm_dev *dev)
{
- struct airoha_qdma *qdma = port->qdma;
- struct airoha_eth *eth = qdma->eth;
+ struct airoha_gdm_port *port = dev->port;
+ struct airoha_eth *eth = dev->eth;
switch (eth->soc->version) {
case 0x7583:
@@ -1949,8 +1950,7 @@ static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb,
struct net_device *netdev)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
- struct airoha_gdm_port *port = dev->port;
- struct airoha_qdma *qdma = port->qdma;
+ struct airoha_qdma *qdma = dev->qdma;
u32 nr_frags, tag, msg0, msg1, len;
struct airoha_queue_entry *e;
struct netdev_queue *txq;
@@ -1988,7 +1988,7 @@ static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb,
}
}
- fport = airoha_get_fe_port(port);
+ fport = airoha_get_fe_port(dev);
msg1 = FIELD_PREP(QDMA_ETH_TXMSG_FPORT_MASK, fport) |
FIELD_PREP(QDMA_ETH_TXMSG_METER_MASK, 0x7f);
@@ -2088,8 +2088,7 @@ static void airoha_ethtool_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *info)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
- struct airoha_gdm_port *port = dev->port;
- struct airoha_eth *eth = port->qdma->eth;
+ struct airoha_eth *eth = dev->eth;
strscpy(info->driver, eth->dev->driver->name, sizeof(info->driver));
strscpy(info->bus_info, dev_name(eth->dev), sizeof(info->bus_info));
@@ -2102,7 +2101,7 @@ static void airoha_ethtool_get_mac_stats(struct net_device *netdev,
struct airoha_gdm_port *port = dev->port;
unsigned int start;
- airoha_update_hw_stats(port);
+ airoha_update_hw_stats(dev);
do {
start = u64_stats_fetch_begin(&port->stats.syncp);
stats->FramesTransmittedOK = port->stats.tx_ok_pkts;
@@ -2142,7 +2141,7 @@ airoha_ethtool_get_rmon_stats(struct net_device *netdev,
ARRAY_SIZE(hw_stats->rx_len) + 1);
*ranges = airoha_ethtool_rmon_ranges;
- airoha_update_hw_stats(port);
+ airoha_update_hw_stats(dev);
do {
int i;
@@ -2162,18 +2161,17 @@ static int airoha_qdma_set_chan_tx_sched(struct net_device *netdev,
const u16 *weights, u8 n_weights)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
- struct airoha_gdm_port *port = dev->port;
int i;
for (i = 0; i < AIROHA_NUM_TX_RING; i++)
- airoha_qdma_clear(port->qdma, REG_QUEUE_CLOSE_CFG(channel),
+ airoha_qdma_clear(dev->qdma, REG_QUEUE_CLOSE_CFG(channel),
TXQ_DISABLE_CHAN_QUEUE_MASK(channel, i));
for (i = 0; i < n_weights; i++) {
u32 status;
int err;
- airoha_qdma_wr(port->qdma, REG_TXWRR_WEIGHT_CFG,
+ airoha_qdma_wr(dev->qdma, REG_TXWRR_WEIGHT_CFG,
TWRR_RW_CMD_MASK |
FIELD_PREP(TWRR_CHAN_IDX_MASK, channel) |
FIELD_PREP(TWRR_QUEUE_IDX_MASK, i) |
@@ -2181,13 +2179,12 @@ static int airoha_qdma_set_chan_tx_sched(struct net_device *netdev,
err = read_poll_timeout(airoha_qdma_rr, status,
status & TWRR_RW_CMD_DONE,
USEC_PER_MSEC, 10 * USEC_PER_MSEC,
- true, port->qdma,
- REG_TXWRR_WEIGHT_CFG);
+ true, dev->qdma, REG_TXWRR_WEIGHT_CFG);
if (err)
return err;
}
- airoha_qdma_rmw(port->qdma, REG_CHAN_QOS_MODE(channel >> 3),
+ airoha_qdma_rmw(dev->qdma, REG_CHAN_QOS_MODE(channel >> 3),
CHAN_QOS_MODE_MASK(channel),
__field_prep(CHAN_QOS_MODE_MASK(channel), mode));
@@ -2253,9 +2250,9 @@ static int airoha_qdma_get_tx_ets_stats(struct net_device *netdev, int channel,
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_gdm_port *port = dev->port;
- u64 cpu_tx_packets = airoha_qdma_rr(port->qdma,
+ u64 cpu_tx_packets = airoha_qdma_rr(dev->qdma,
REG_CNTR_VAL(channel << 1));
- u64 fwd_tx_packets = airoha_qdma_rr(port->qdma,
+ u64 fwd_tx_packets = airoha_qdma_rr(dev->qdma,
REG_CNTR_VAL((channel << 1) + 1));
u64 tx_packets = (cpu_tx_packets - port->cpu_tx_packets) +
(fwd_tx_packets - port->fwd_tx_packets);
@@ -2518,17 +2515,16 @@ static int airoha_qdma_set_tx_rate_limit(struct net_device *netdev,
u32 bucket_size)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
- struct airoha_gdm_port *port = dev->port;
int i, err;
for (i = 0; i <= TRTCM_PEAK_MODE; i++) {
- err = airoha_qdma_set_trtcm_config(port->qdma, channel,
+ err = airoha_qdma_set_trtcm_config(dev->qdma, channel,
REG_EGRESS_TRTCM_CFG, i,
!!rate, TRTCM_METER_MODE);
if (err)
return err;
- err = airoha_qdma_set_trtcm_token_bucket(port->qdma, channel,
+ err = airoha_qdma_set_trtcm_token_bucket(dev->qdma, channel,
REG_EGRESS_TRTCM_CFG,
i, rate, bucket_size);
if (err)
@@ -2578,11 +2574,11 @@ static int airoha_tc_htb_alloc_leaf_queue(struct net_device *netdev,
return 0;
}
-static int airoha_qdma_set_rx_meter(struct airoha_gdm_port *port,
+static int airoha_qdma_set_rx_meter(struct airoha_gdm_dev *dev,
u32 rate, u32 bucket_size,
enum trtcm_unit_type unit_type)
{
- struct airoha_qdma *qdma = port->qdma;
+ struct airoha_qdma *qdma = dev->qdma;
int i;
for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
@@ -2661,7 +2657,6 @@ static int airoha_dev_tc_matchall(struct net_device *netdev,
{
enum trtcm_unit_type unit_type = TRTCM_BYTE_UNIT;
struct airoha_gdm_dev *dev = netdev_priv(netdev);
- struct airoha_gdm_port *port = dev->port;
u32 rate = 0, bucket_size = 0;
switch (f->command) {
@@ -2686,7 +2681,7 @@ static int airoha_dev_tc_matchall(struct net_device *netdev,
fallthrough;
}
case TC_CLSMATCHALL_DESTROY:
- return airoha_qdma_set_rx_meter(port, rate, bucket_size,
+ return airoha_qdma_set_rx_meter(dev, rate, bucket_size,
unit_type);
default:
return -EOPNOTSUPP;
@@ -2698,8 +2693,7 @@ static int airoha_dev_setup_tc_block_cb(enum tc_setup_type type,
{
struct net_device *netdev = cb_priv;
struct airoha_gdm_dev *dev = netdev_priv(netdev);
- struct airoha_gdm_port *port = dev->port;
- struct airoha_eth *eth = port->qdma->eth;
+ struct airoha_eth *eth = dev->eth;
if (!tc_can_offload(netdev))
return -EOPNOTSUPP;
diff --git a/drivers/net/ethernet/airoha/airoha_eth.h b/drivers/net/ethernet/airoha/airoha_eth.h
index 54cb9984ff4b..05ffe4d9de4f 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.h
+++ b/drivers/net/ethernet/airoha/airoha_eth.h
@@ -534,12 +534,12 @@ struct airoha_qdma {
struct airoha_gdm_dev {
struct airoha_gdm_port *port;
+ struct airoha_qdma *qdma;
struct net_device *dev;
struct airoha_eth *eth;
};
struct airoha_gdm_port {
- struct airoha_qdma *qdma;
struct airoha_gdm_dev *dev;
int id;
@@ -652,19 +652,18 @@ static inline bool airoha_is_7583(struct airoha_eth *eth)
return eth->soc->version == 0x7583;
}
-int airoha_get_fe_port(struct airoha_gdm_port *port);
+int airoha_get_fe_port(struct airoha_gdm_dev *dev);
bool airoha_is_valid_gdm_dev(struct airoha_eth *eth,
struct airoha_gdm_dev *dev);
-void airoha_ppe_set_cpu_port(struct airoha_gdm_port *port, u8 ppe_id,
- u8 fport);
+void airoha_ppe_set_cpu_port(struct airoha_gdm_dev *dev, u8 ppe_id, u8 fport);
bool airoha_ppe_is_enabled(struct airoha_eth *eth, int index);
void airoha_ppe_check_skb(struct airoha_ppe_dev *dev, struct sk_buff *skb,
u16 hash, bool rx_wlan);
int airoha_ppe_setup_tc_block_cb(struct airoha_ppe_dev *dev, void *type_data);
int airoha_ppe_init(struct airoha_eth *eth);
void airoha_ppe_deinit(struct airoha_eth *eth);
-void airoha_ppe_init_upd_mem(struct airoha_gdm_port *port);
+void airoha_ppe_init_upd_mem(struct airoha_gdm_dev *dev);
u32 airoha_ppe_get_total_num_entries(struct airoha_ppe *ppe);
struct airoha_foe_entry *airoha_ppe_foe_get_entry(struct airoha_ppe *ppe,
u32 hash);
diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c
index 65aadb29330e..2d4560e9ec5f 100644
--- a/drivers/net/ethernet/airoha/airoha_ppe.c
+++ b/drivers/net/ethernet/airoha/airoha_ppe.c
@@ -85,9 +85,9 @@ static u32 airoha_ppe_get_timestamp(struct airoha_ppe *ppe)
return FIELD_GET(AIROHA_FOE_IB1_BIND_TIMESTAMP, timestamp);
}
-void airoha_ppe_set_cpu_port(struct airoha_gdm_port *port, u8 ppe_id, u8 fport)
+void airoha_ppe_set_cpu_port(struct airoha_gdm_dev *dev, u8 ppe_id, u8 fport)
{
- struct airoha_qdma *qdma = port->qdma;
+ struct airoha_qdma *qdma = dev->qdma;
struct airoha_eth *eth = qdma->eth;
u8 qdma_id = qdma - ð->qdma[0];
u32 fe_cpu_port;
@@ -173,8 +173,8 @@ static void airoha_ppe_hw_init(struct airoha_ppe *ppe)
if (!port)
continue;
- airoha_ppe_set_cpu_port(port, i,
- airoha_get_fe_port(port));
+ airoha_ppe_set_cpu_port(port->dev, i,
+ airoha_get_fe_port(port->dev));
}
}
}
@@ -1430,11 +1430,12 @@ void airoha_ppe_check_skb(struct airoha_ppe_dev *dev, struct sk_buff *skb,
airoha_ppe_foe_insert_entry(ppe, skb, hash, rx_wlan);
}
-void airoha_ppe_init_upd_mem(struct airoha_gdm_port *port)
+void airoha_ppe_init_upd_mem(struct airoha_gdm_dev *dev)
{
- struct airoha_eth *eth = port->qdma->eth;
- struct net_device *dev = port->dev->dev;
- const u8 *addr = dev->dev_addr;
+ struct airoha_gdm_port *port = dev->port;
+ struct net_device *netdev = dev->dev;
+ struct airoha_eth *eth = dev->eth;
+ const u8 *addr = netdev->dev_addr;
u32 val;
val = (addr[2] << 24) | (addr[3] << 16) | (addr[4] << 8) | addr[5];
--
2.53.0
next prev parent reply other threads:[~2026-04-06 10:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-06 10:34 [PATCH net-next v3 00/12] net: airoha: Support multiple net_devices connected to the same GDM port Lorenzo Bianconi
2026-04-06 10:34 ` [PATCH net-next v3 01/12] dt-bindings: net: airoha: Add EN7581 ethernet-ports properties Lorenzo Bianconi
2026-04-06 10:34 ` [PATCH net-next v3 02/12] net: airoha: Set PPE cpu port for GDM2 if loopback is enabled Lorenzo Bianconi
2026-04-06 10:34 ` [PATCH net-next v3 03/12] net: airoha: Rely on net_device pointer in airoha_dev_setup_tc_block signature Lorenzo Bianconi
2026-04-06 10:34 ` [PATCH net-next v3 04/12] net: airoha: Rely on net_device pointer in HTB callbacks Lorenzo Bianconi
2026-04-06 10:34 ` [PATCH net-next v3 05/12] net: airoha: Rely on net_device pointer in ETS callbacks Lorenzo Bianconi
2026-04-06 10:34 ` [PATCH net-next v3 06/12] net: airoha: Introduce airoha_gdm_dev struct Lorenzo Bianconi
2026-04-06 10:34 ` Lorenzo Bianconi [this message]
2026-04-06 10:34 ` [PATCH net-next v3 08/12] net: airoha: Rely on airoha_gdm_dev pointer in airhoa_is_lan_gdm_port() Lorenzo Bianconi
2026-04-06 10:34 ` [PATCH net-next v3 09/12] net: airoha: Support multiple net_devices for a single FE GDM port Lorenzo Bianconi
2026-04-06 10:34 ` [PATCH net-next v3 10/12] net: airoha: Do not stop GDM port if it is shared Lorenzo Bianconi
2026-04-06 10:34 ` [PATCH net-next v3 11/12] net: airoha: Introduce WAN device flag Lorenzo Bianconi
2026-04-06 10:34 ` [PATCH net-next v3 12/12] net: airoha: Rename get_src_port_id callback in get_sport Lorenzo Bianconi
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