#include <linux/of.h>
#include <linux/of_net.h>
#include <linux/of_reserved_mem.h>
#include <linux/platform_device.h>
#include <linux/tcp.h>
#include <linux/u64_stats_sync.h>
#include <net/dst_metadata.h>
#include <net/page_pool/helpers.h>
#include <net/pkt_cls.h>
#include <uapi/linux/ppp_defs.h>
#include "airoha_regs.h"
#include "airoha_eth.h"
u32 airoha_rr(void __iomem *base, u32 offset)
{
return readl(base + offset);
}
void airoha_wr(void __iomem *base, u32 offset, u32 val)
{
writel(val, base + offset);
}
u32 airoha_rmw(void __iomem *base, u32 offset, u32 mask, u32 val)
{
val |= (airoha_rr(base, offset) & ~mask);
airoha_wr(base, offset, val);
return val;
}
static void airoha_qdma_set_irqmask(struct airoha_irq_bank *irq_bank,
int index, u32 clear, u32 set)
{
struct airoha_qdma *qdma = irq_bank->qdma;
int bank = irq_bank - &qdma->irq_banks[0];
unsigned long flags;
if (WARN_ON_ONCE(index >= ARRAY_SIZE(irq_bank->irqmask)))
return;
spin_lock_irqsave(&irq_bank->irq_lock, flags);
irq_bank->irqmask[index] &= ~clear;
irq_bank->irqmask[index] |= set;
airoha_qdma_wr(qdma, REG_INT_ENABLE(bank, index),
irq_bank->irqmask[index]);
airoha_qdma_rr(qdma, REG_INT_ENABLE(bank, index));
spin_unlock_irqrestore(&irq_bank->irq_lock, flags);
}
static void airoha_qdma_irq_enable(struct airoha_irq_bank *irq_bank,
int index, u32 mask)
{
airoha_qdma_set_irqmask(irq_bank, index, 0, mask);
}
static void airoha_qdma_irq_disable(struct airoha_irq_bank *irq_bank,
int index, u32 mask)
{
airoha_qdma_set_irqmask(irq_bank, index, mask, 0);
}
static int airoha_set_macaddr(struct airoha_gdm_dev *dev, const u8 *addr)
{
u8 ref_addr[ETH_ALEN] __aligned(2);
struct airoha_eth *eth = dev->eth;
u32 reg, val, lmin, lmax;
int i;
eth_zero_addr(ref_addr);
lmin = (addr[3] << 16) | (addr[4] << 8) | addr[5];
lmax = lmin;
for (i = 0; i < ARRAY_SIZE(eth->ports); i++) {
struct airoha_gdm_port *port = eth->ports[i];
int j;
if (!port)
continue;
for (j = 0; j < ARRAY_SIZE(port->devs); j++) {
struct airoha_gdm_dev *iter_dev;
struct net_device *netdev;
iter_dev = port->devs[j];
if (!iter_dev || iter_dev == dev)
continue;
if (airoha_is_lan_gdm_dev(iter_dev) !=
airoha_is_lan_gdm_dev(dev))
continue;
netdev = netdev_from_priv(iter_dev);
if (netdev->reg_state != NETREG_REGISTERED)
continue;
ether_addr_copy(ref_addr, netdev->dev_addr);
val = (netdev->dev_addr[3] << 16) |
(netdev->dev_addr[4] << 8) | netdev->dev_addr[5];
if (val < lmin)
lmin = val;
if (val > lmax)
lmax = val;
}
}
if (!is_zero_ether_addr(ref_addr) && memcmp(ref_addr, addr, 3)) {
struct net_device *netdev = netdev_from_priv(dev);
dev_warn(eth->dev,
"%s: wrong mac addr, MSBs must be %02x:%02x:%02x\n",
netdev->name, ref_addr[0], ref_addr[1],
ref_addr[2]);
dev_warn(eth->dev, "FE hw forwarding won't work properly\n");
return -EINVAL;
}
reg = airoha_is_lan_gdm_dev(dev) ? REG_FE_LAN_MAC_H : REG_FE_WAN_MAC_H;
val = (addr[0] << 16) | (addr[1] << 8) | addr[2];
airoha_fe_wr(eth, reg, val);
airoha_fe_wr(eth, REG_FE_MAC_LMIN(reg), lmin);
airoha_fe_wr(eth, REG_FE_MAC_LMAX(reg), lmax);
airoha_ppe_init_upd_mem(dev, addr);
return 0;
}
static void airoha_set_gdm_port_fwd_cfg(struct airoha_eth *eth, u32 addr,
u32 val)
{
airoha_fe_rmw(eth, addr, GDM_OCFQ_MASK,
FIELD_PREP(GDM_OCFQ_MASK, val));
airoha_fe_rmw(eth, addr, GDM_MCFQ_MASK,
FIELD_PREP(GDM_MCFQ_MASK, val));
airoha_fe_rmw(eth, addr, GDM_BCFQ_MASK,
FIELD_PREP(GDM_BCFQ_MASK, val));
airoha_fe_rmw(eth, addr, GDM_UCFQ_MASK,
FIELD_PREP(GDM_UCFQ_MASK, val));
}
static int airoha_set_vip_for_gdm_port(struct airoha_gdm_dev *dev, bool enable)
{
struct airoha_gdm_port *port = dev->port;
struct airoha_eth *eth = dev->eth;
u32 vip_port;
vip_port = eth->soc->ops.get_vip_port(port, dev->nbq);
if (enable) {
airoha_fe_set(eth, REG_FE_VIP_PORT_EN, vip_port);
airoha_fe_set(eth, REG_FE_IFC_PORT_EN, vip_port);
} else {
airoha_fe_clear(eth, REG_FE_VIP_PORT_EN, vip_port);
airoha_fe_clear(eth, REG_FE_IFC_PORT_EN, vip_port);
}
return 0;
}
static void airoha_fe_maccr_init(struct airoha_eth *eth)
{
int p;
for (p = 1; p <= ARRAY_SIZE(eth->ports); p++) {
airoha_fe_set(eth, REG_GDM_FWD_CFG(p),
GDM_TCP_CKSUM_MASK | GDM_UDP_CKSUM_MASK |
GDM_IP4_CKSUM_MASK | GDM_DROP_CRC_ERR_MASK);
airoha_fe_rmw(eth, REG_GDM_LEN_CFG(p),
GDM_SHORT_LEN_MASK | GDM_LONG_LEN_MASK,
FIELD_PREP(GDM_SHORT_LEN_MASK, 60) |
FIELD_PREP(GDM_LONG_LEN_MASK, AIROHA_MAX_RX_SIZE));
}
airoha_fe_rmw(eth, REG_CDM_VLAN_CTRL(1), CDM_VLAN_MASK,
FIELD_PREP(CDM_VLAN_MASK, 0x8100));
airoha_fe_set(eth, REG_FE_CPORT_CFG, FE_CPORT_PAD);
}
static void airoha_fe_vip_setup(struct airoha_eth *eth)
{
airoha_fe_wr(eth, REG_FE_VIP_PATN(3), ETH_P_PPP_DISC);
airoha_fe_wr(eth, REG_FE_VIP_EN(3), PATN_FCPU_EN_MASK | PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(4), PPP_LCP);
airoha_fe_wr(eth, REG_FE_VIP_EN(4),
PATN_FCPU_EN_MASK | FIELD_PREP(PATN_TYPE_MASK, 1) |
PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(6), PPP_IPCP);
airoha_fe_wr(eth, REG_FE_VIP_EN(6),
PATN_FCPU_EN_MASK | FIELD_PREP(PATN_TYPE_MASK, 1) |
PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(7), PPP_CHAP);
airoha_fe_wr(eth, REG_FE_VIP_EN(7),
PATN_FCPU_EN_MASK | FIELD_PREP(PATN_TYPE_MASK, 1) |
PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(8), 0x43);
airoha_fe_wr(eth, REG_FE_VIP_EN(8),
PATN_FCPU_EN_MASK | PATN_SP_EN_MASK |
FIELD_PREP(PATN_TYPE_MASK, 4) | PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(9), 0x44);
airoha_fe_wr(eth, REG_FE_VIP_EN(9),
PATN_FCPU_EN_MASK | PATN_SP_EN_MASK |
FIELD_PREP(PATN_TYPE_MASK, 4) | PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(10), 0x1f401f4);
airoha_fe_wr(eth, REG_FE_VIP_EN(10),
PATN_FCPU_EN_MASK | PATN_DP_EN_MASK | PATN_SP_EN_MASK |
FIELD_PREP(PATN_TYPE_MASK, 4) | PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(11), PPP_IPV6CP);
airoha_fe_wr(eth, REG_FE_VIP_EN(11),
PATN_FCPU_EN_MASK | FIELD_PREP(PATN_TYPE_MASK, 1) |
PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(12), 0x2220223);
airoha_fe_wr(eth, REG_FE_VIP_EN(12),
PATN_FCPU_EN_MASK | PATN_DP_EN_MASK | PATN_SP_EN_MASK |
FIELD_PREP(PATN_TYPE_MASK, 4) | PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(19), PPP_PAP);
airoha_fe_wr(eth, REG_FE_VIP_EN(19),
PATN_FCPU_EN_MASK | FIELD_PREP(PATN_TYPE_MASK, 1) |
PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(20), 0x893a);
airoha_fe_wr(eth, REG_FE_VIP_EN(20),
PATN_FCPU_EN_MASK | PATN_EN_MASK);
airoha_fe_wr(eth, REG_FE_VIP_PATN(21), ETH_P_LLDP);
airoha_fe_wr(eth, REG_FE_VIP_EN(21),
PATN_FCPU_EN_MASK | PATN_EN_MASK);
}
static u32 airoha_fe_get_pse_queue_rsv_pages(struct airoha_eth *eth,
u32 port, u32 queue)
{
airoha_fe_rmw(eth, REG_FE_PSE_QUEUE_CFG_WR,
PSE_CFG_PORT_ID_MASK | PSE_CFG_QUEUE_ID_MASK,
FIELD_PREP(PSE_CFG_PORT_ID_MASK, port) |
FIELD_PREP(PSE_CFG_QUEUE_ID_MASK, queue));
return airoha_fe_get(eth, REG_FE_PSE_QUEUE_CFG_VAL,
PSE_CFG_OQ_RSV_MASK);
}
static void airoha_fe_set_pse_queue_rsv_pages(struct airoha_eth *eth,
u32 port, u32 queue, u32 val)
{
airoha_fe_rmw(eth, REG_FE_PSE_QUEUE_CFG_VAL, PSE_CFG_OQ_RSV_MASK,
FIELD_PREP(PSE_CFG_OQ_RSV_MASK, val));
airoha_fe_rmw(eth, REG_FE_PSE_QUEUE_CFG_WR,
PSE_CFG_PORT_ID_MASK | PSE_CFG_QUEUE_ID_MASK |
PSE_CFG_WR_EN_MASK | PSE_CFG_OQRSV_SEL_MASK,
FIELD_PREP(PSE_CFG_PORT_ID_MASK, port) |
FIELD_PREP(PSE_CFG_QUEUE_ID_MASK, queue) |
PSE_CFG_WR_EN_MASK | PSE_CFG_OQRSV_SEL_MASK);
}
static u32 airoha_fe_get_pse_all_rsv(struct airoha_eth *eth)
{
return airoha_fe_get(eth, REG_FE_PSE_BUF_SET, PSE_ALLRSV_MASK);
}
static int airoha_fe_set_pse_oq_rsv(struct airoha_eth *eth,
u32 port, u32 queue, u32 val)
{
u32 orig_val = airoha_fe_get_pse_queue_rsv_pages(eth, port, queue);
u32 tmp, all_rsv, fq_limit;
airoha_fe_set_pse_queue_rsv_pages(eth, port, queue, val);
all_rsv = airoha_fe_get_pse_all_rsv(eth);
all_rsv += (val - orig_val);
airoha_fe_rmw(eth, REG_FE_PSE_BUF_SET, PSE_ALLRSV_MASK,
FIELD_PREP(PSE_ALLRSV_MASK, all_rsv));
fq_limit = airoha_fe_get(eth, PSE_FQ_CFG, PSE_FQ_LIMIT_MASK);
tmp = fq_limit - all_rsv - 0x20;
airoha_fe_rmw(eth, REG_PSE_SHARE_USED_THD,
PSE_SHARE_USED_HTHD_MASK,
FIELD_PREP(PSE_SHARE_USED_HTHD_MASK, tmp));
tmp = fq_limit - all_rsv - 0x100;
airoha_fe_rmw(eth, REG_PSE_SHARE_USED_THD,
PSE_SHARE_USED_MTHD_MASK,
FIELD_PREP(PSE_SHARE_USED_MTHD_MASK, tmp));
tmp = (3 * tmp) >> 2;
airoha_fe_rmw(eth, REG_FE_PSE_BUF_SET,
PSE_SHARE_USED_LTHD_MASK,
FIELD_PREP(PSE_SHARE_USED_LTHD_MASK, tmp));
return 0;
}
static void airoha_fe_pse_ports_init(struct airoha_eth *eth)
{
const u32 pse_port_num_queues[] = {
[FE_PSE_PORT_CDM1] = 6,
[FE_PSE_PORT_GDM1] = 6,
[FE_PSE_PORT_GDM2] = 32,
[FE_PSE_PORT_GDM3] = 6,
[FE_PSE_PORT_PPE1] = 4,
[FE_PSE_PORT_CDM2] = 6,
[FE_PSE_PORT_CDM3] = 8,
[FE_PSE_PORT_CDM4] = 10,
[FE_PSE_PORT_PPE2] = 4,
[FE_PSE_PORT_GDM4] = 2,
[FE_PSE_PORT_CDM5] = 2,
};
int q;
if (airoha_ppe_is_enabled(eth, 1)) {
u32 all_rsv;
all_rsv = airoha_fe_get_pse_all_rsv(eth);
all_rsv += PSE_RSV_PAGES *
pse_port_num_queues[FE_PSE_PORT_PPE2];
airoha_fe_rmw(eth, REG_FE_PSE_BUF_SET, PSE_ALLRSV_MASK,
FIELD_PREP(PSE_ALLRSV_MASK, all_rsv));
}
for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_CDM1]; q++)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_CDM1, q,
PSE_QUEUE_RSV_PAGES);
for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_GDM1]; q++)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_GDM1, q,
PSE_QUEUE_RSV_PAGES);
for (q = 6; q < pse_port_num_queues[FE_PSE_PORT_GDM2]; q++)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_GDM2, q, 0);
for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_GDM3]; q++)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_GDM3, q,
PSE_QUEUE_RSV_PAGES);
for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_PPE1]; q++) {
if (q < pse_port_num_queues[FE_PSE_PORT_PPE1] / 2)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_PPE1, q,
PSE_QUEUE_RSV_PAGES);
else
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_PPE1, q, 0);
}
for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_CDM2]; q++)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_CDM2, q,
PSE_QUEUE_RSV_PAGES);
for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_CDM3] - 1; q++)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_CDM3, q, 0);
for (q = 4; q < pse_port_num_queues[FE_PSE_PORT_CDM4]; q++)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_CDM4, q,
PSE_QUEUE_RSV_PAGES);
if (airoha_ppe_is_enabled(eth, 1)) {
for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_PPE2]; q++) {
if (q < pse_port_num_queues[FE_PSE_PORT_PPE2] / 2)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_PPE2,
q,
PSE_QUEUE_RSV_PAGES);
else
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_PPE2,
q, 0);
}
}
for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_GDM4]; q++)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_GDM4, q,
PSE_QUEUE_RSV_PAGES);
for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_CDM5]; q++)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_CDM5, q,
PSE_QUEUE_RSV_PAGES);
}
static int airoha_fe_mc_vlan_clear(struct airoha_eth *eth)
{
int i;
for (i = 0; i < AIROHA_FE_MC_MAX_VLAN_TABLE; i++) {
int err, j;
u32 val;
airoha_fe_wr(eth, REG_MC_VLAN_DATA, 0x0);
val = FIELD_PREP(MC_VLAN_CFG_TABLE_ID_MASK, i) |
MC_VLAN_CFG_TABLE_SEL_MASK | MC_VLAN_CFG_RW_MASK;
airoha_fe_wr(eth, REG_MC_VLAN_CFG, val);
err = read_poll_timeout(airoha_fe_rr, val,
val & MC_VLAN_CFG_CMD_DONE_MASK,
USEC_PER_MSEC, 5 * USEC_PER_MSEC,
false, eth, REG_MC_VLAN_CFG);
if (err)
return err;
for (j = 0; j < AIROHA_FE_MC_MAX_VLAN_PORT; j++) {
airoha_fe_wr(eth, REG_MC_VLAN_DATA, 0x0);
val = FIELD_PREP(MC_VLAN_CFG_TABLE_ID_MASK, i) |
FIELD_PREP(MC_VLAN_CFG_PORT_ID_MASK, j) |
MC_VLAN_CFG_RW_MASK;
airoha_fe_wr(eth, REG_MC_VLAN_CFG, val);
err = read_poll_timeout(airoha_fe_rr, val,
val & MC_VLAN_CFG_CMD_DONE_MASK,
USEC_PER_MSEC,
5 * USEC_PER_MSEC, false, eth,
REG_MC_VLAN_CFG);
if (err)
return err;
}
}
return 0;
}
static void airoha_fe_crsn_qsel_init(struct airoha_eth *eth)
{
airoha_fe_rmw(eth, REG_CDM_CRSN_QSEL(1, CRSN_22 >> 2),
CDM_CRSN_QSEL_REASON_MASK(CRSN_22),
FIELD_PREP(CDM_CRSN_QSEL_REASON_MASK(CRSN_22),
CDM_CRSN_QSEL_Q1));
airoha_fe_rmw(eth, REG_CDM_CRSN_QSEL(1, CRSN_08 >> 2),
CDM_CRSN_QSEL_REASON_MASK(CRSN_08),
FIELD_PREP(CDM_CRSN_QSEL_REASON_MASK(CRSN_08),
CDM_CRSN_QSEL_Q1));
airoha_fe_rmw(eth, REG_CDM_CRSN_QSEL(1, CRSN_21 >> 2),
CDM_CRSN_QSEL_REASON_MASK(CRSN_21),
FIELD_PREP(CDM_CRSN_QSEL_REASON_MASK(CRSN_21),
CDM_CRSN_QSEL_Q1));
airoha_fe_rmw(eth, REG_CDM_CRSN_QSEL(1, CRSN_24 >> 2),
CDM_CRSN_QSEL_REASON_MASK(CRSN_24),
FIELD_PREP(CDM_CRSN_QSEL_REASON_MASK(CRSN_24),
CDM_CRSN_QSEL_Q6));
airoha_fe_rmw(eth, REG_CDM_CRSN_QSEL(1, CRSN_25 >> 2),
CDM_CRSN_QSEL_REASON_MASK(CRSN_25),
FIELD_PREP(CDM_CRSN_QSEL_REASON_MASK(CRSN_25),
CDM_CRSN_QSEL_Q1));
airoha_fe_rmw(eth, REG_CDM_CRSN_QSEL(2, CRSN_08 >> 2),
CDM_CRSN_QSEL_REASON_MASK(CRSN_08),
FIELD_PREP(CDM_CRSN_QSEL_REASON_MASK(CRSN_08),
CDM_CRSN_QSEL_Q1));
airoha_fe_rmw(eth, REG_CDM_CRSN_QSEL(2, CRSN_21 >> 2),
CDM_CRSN_QSEL_REASON_MASK(CRSN_21),
FIELD_PREP(CDM_CRSN_QSEL_REASON_MASK(CRSN_21),
CDM_CRSN_QSEL_Q1));
airoha_fe_rmw(eth, REG_CDM_CRSN_QSEL(2, CRSN_22 >> 2),
CDM_CRSN_QSEL_REASON_MASK(CRSN_22),
FIELD_PREP(CDM_CRSN_QSEL_REASON_MASK(CRSN_22),
CDM_CRSN_QSEL_Q1));
airoha_fe_rmw(eth, REG_CDM_CRSN_QSEL(2, CRSN_24 >> 2),
CDM_CRSN_QSEL_REASON_MASK(CRSN_24),
FIELD_PREP(CDM_CRSN_QSEL_REASON_MASK(CRSN_24),
CDM_CRSN_QSEL_Q6));
airoha_fe_rmw(eth, REG_CDM_CRSN_QSEL(2, CRSN_25 >> 2),
CDM_CRSN_QSEL_REASON_MASK(CRSN_25),
FIELD_PREP(CDM_CRSN_QSEL_REASON_MASK(CRSN_25),
CDM_CRSN_QSEL_Q1));
}
static int airoha_fe_init(struct airoha_eth *eth)
{
airoha_fe_maccr_init(eth);
airoha_fe_rmw(eth, REG_PSE_IQ_REV1, PSE_IQ_RES1_P2_MASK,
FIELD_PREP(PSE_IQ_RES1_P2_MASK, 0x10));
airoha_fe_rmw(eth, REG_PSE_IQ_REV2,
PSE_IQ_RES2_P5_MASK | PSE_IQ_RES2_P4_MASK,
FIELD_PREP(PSE_IQ_RES2_P5_MASK, 0x40) |
FIELD_PREP(PSE_IQ_RES2_P4_MASK, 0x34));
airoha_fe_wr(eth, REG_FE_PCE_CFG, PCE_DPI_EN_MASK | PCE_KA_EN_MASK);
airoha_fe_rmw(eth, REG_CDM_FWD_CFG(1), CDM_VIP_QSEL_MASK,
FIELD_PREP(CDM_VIP_QSEL_MASK, 0x4));
airoha_fe_rmw(eth, REG_CDM_FWD_CFG(2), CDM_VIP_QSEL_MASK,
FIELD_PREP(CDM_VIP_QSEL_MASK, 0x4));
airoha_fe_rmw(eth, REG_GDM_SRC_PORT_SET(4),
GDM_SPORT_OFF2_MASK |
GDM_SPORT_OFF1_MASK |
GDM_SPORT_OFF0_MASK,
FIELD_PREP(GDM_SPORT_OFF2_MASK, 8) |
FIELD_PREP(GDM_SPORT_OFF1_MASK, 8) |
FIELD_PREP(GDM_SPORT_OFF0_MASK, 8));
airoha_fe_rmw(eth, REG_FE_DMA_GLO_CFG,
FE_DMA_GLO_L2_SPACE_MASK | FE_DMA_GLO_PG_SZ_MASK,
FIELD_PREP(FE_DMA_GLO_L2_SPACE_MASK, 2) |
FE_DMA_GLO_PG_SZ_MASK);
airoha_fe_wr(eth, REG_FE_RST_GLO_CFG,
FE_RST_CORE_MASK | FE_RST_GDM3_MBI_ARB_MASK |
FE_RST_GDM4_MBI_ARB_MASK);
usleep_range(1000, 2000);
airoha_fe_wr(eth, REG_FE_CDM1_OQ_MAP0, BIT(4));
airoha_fe_wr(eth, REG_FE_CDM1_OQ_MAP1, BIT(28));
airoha_fe_wr(eth, REG_FE_CDM1_OQ_MAP2, BIT(4));
airoha_fe_wr(eth, REG_FE_CDM1_OQ_MAP3, BIT(28));
airoha_fe_vip_setup(eth);
airoha_fe_pse_ports_init(eth);
airoha_fe_set(eth, REG_GDM_MISC_CFG,
GDM2_RDM_ACK_WAIT_PREF_MASK |
GDM2_CHN_VLD_MODE_MASK);
airoha_fe_rmw(eth, REG_CDM_FWD_CFG(2), CDM_OAM_QSEL_MASK,
FIELD_PREP(CDM_OAM_QSEL_MASK, 15));
airoha_fe_rmw(eth, REG_IP_FRAG_FP,
IP_FRAGMENT_PORT_MASK | IP_FRAGMENT_NBQ_MASK,
FIELD_PREP(IP_FRAGMENT_PORT_MASK, 6) |
FIELD_PREP(IP_FRAGMENT_NBQ_MASK, 3));
airoha_fe_rmw(eth, REG_IP_FRAG_FP,
IP_ASSEMBLE_PORT_MASK | IP_ASSEMBLE_NBQ_MASK,
FIELD_PREP(IP_ASSEMBLE_PORT_MASK, 0) |
FIELD_PREP(IP_ASSEMBLE_NBQ_MASK, 22));
airoha_fe_set(eth, REG_GDM_FWD_CFG(AIROHA_GDM3_IDX), GDM_PAD_EN_MASK);
airoha_fe_set(eth, REG_GDM_FWD_CFG(AIROHA_GDM4_IDX), GDM_PAD_EN_MASK);
airoha_fe_set(eth, REG_FE_GDM_MIB_CFG(AIROHA_GDM3_IDX),
FE_GDM_TX_MIB_SPLIT_EN_MASK |
FE_GDM_RX_MIB_SPLIT_EN_MASK);
airoha_fe_set(eth, REG_FE_GDM_MIB_CFG(AIROHA_GDM4_IDX),
FE_GDM_TX_MIB_SPLIT_EN_MASK |
FE_GDM_RX_MIB_SPLIT_EN_MASK);
airoha_fe_crsn_qsel_init(eth);
airoha_fe_clear(eth, REG_FE_CPORT_CFG, FE_CPORT_QUEUE_XFC_MASK);
airoha_fe_set(eth, REG_FE_CPORT_CFG, FE_CPORT_PORT_XFC_MASK);
airoha_fe_rmw(eth, REG_GDM_CHN_RLS(2),
MBI_RX_AGE_SEL_MASK | MBI_TX_AGE_SEL_MASK,
FIELD_PREP(MBI_RX_AGE_SEL_MASK, 3) |
FIELD_PREP(MBI_TX_AGE_SEL_MASK, 3));
airoha_fe_clear(eth, REG_FE_CSR_IFC_CFG, FE_IFC_EN_MASK);
airoha_fe_set(eth, REG_MC_VLAN_EN, MC_VLAN_EN_MASK);
return airoha_fe_mc_vlan_clear(eth);
}
static int airoha_qdma_fill_rx_queue(struct airoha_queue *q)
{
struct airoha_qdma *qdma = q->qdma;
int qid = q - &qdma->q_rx[0];
int nframes = 0;
while (q->queued < q->ndesc - 1) {
struct airoha_queue_entry *e = &q->entry[q->head];
struct airoha_qdma_desc *desc = &q->desc[q->head];
struct page *page;
int offset;
u32 val;
page = page_pool_dev_alloc_frag(q->page_pool, &offset,
q->buf_size);
if (!page)
break;
q->head = (q->head + 1) % q->ndesc;
q->queued++;
nframes++;
offset += AIROHA_RX_HEADROOM;
e->buf = page_address(page) + offset;
e->dma_addr = page_pool_get_dma_addr(page) + offset;
e->dma_len = SKB_WITH_OVERHEAD(AIROHA_RX_LEN(q->buf_size));
val = FIELD_PREP(QDMA_DESC_LEN_MASK, e->dma_len);
WRITE_ONCE(desc->ctrl, cpu_to_le32(val));
WRITE_ONCE(desc->addr, cpu_to_le32(e->dma_addr));
val = FIELD_PREP(QDMA_DESC_NEXT_ID_MASK, q->head);
WRITE_ONCE(desc->data, cpu_to_le32(val));
WRITE_ONCE(desc->msg0, 0);
WRITE_ONCE(desc->msg1, 0);
WRITE_ONCE(desc->msg2, 0);
WRITE_ONCE(desc->msg3, 0);
}
if (nframes)
airoha_qdma_rmw(qdma, REG_RX_CPU_IDX(qid),
RX_RING_CPU_IDX_MASK,
FIELD_PREP(RX_RING_CPU_IDX_MASK, q->head));
return nframes;
}
static struct airoha_gdm_dev *
airoha_qdma_get_gdm_dev(struct airoha_eth *eth, struct airoha_qdma_desc *desc)
{
struct airoha_gdm_port *port;
u16 p, d;
if (eth->soc->ops.get_dev_from_sport(desc, &p, &d))
return ERR_PTR(-ENODEV);
if (p >= ARRAY_SIZE(eth->ports))
return ERR_PTR(-ENODEV);
port = eth->ports[p];
if (!port)
return ERR_PTR(-ENODEV);
if (d >= ARRAY_SIZE(port->devs))
return ERR_PTR(-ENODEV);
return port->devs[d] ? port->devs[d] : ERR_PTR(-ENODEV);
}
static int airoha_qdma_rx_process(struct airoha_queue *q, int budget)
{
enum dma_data_direction dir = page_pool_get_dma_dir(q->page_pool);
struct airoha_qdma *qdma = q->qdma;
struct airoha_eth *eth = qdma->eth;
int qid = q - &qdma->q_rx[0];
int done = 0;
while (done < budget) {
struct airoha_queue_entry *e = &q->entry[q->tail];
struct airoha_qdma_desc *desc = &q->desc[q->tail];
u32 hash, reason, msg1, desc_ctrl;
struct airoha_gdm_dev *dev;
struct net_device *netdev;
int data_len, len;
struct page *page;
desc_ctrl = le32_to_cpu(READ_ONCE(desc->ctrl));
if (!(desc_ctrl & QDMA_DESC_DONE_MASK))
break;
dma_rmb();
q->tail = (q->tail + 1) % q->ndesc;
q->queued--;
dma_sync_single_for_cpu(eth->dev, e->dma_addr, e->dma_len,
dir);
page = virt_to_head_page(e->buf);
len = FIELD_GET(QDMA_DESC_LEN_MASK, desc_ctrl);
data_len = q->skb ? AIROHA_RX_LEN(q->buf_size) : e->dma_len;
if (!len || data_len < len)
goto free_frag;
dev = airoha_qdma_get_gdm_dev(eth, desc);
if (IS_ERR(dev))
goto free_frag;
netdev = netdev_from_priv(dev);
if (!q->skb) {
q->skb = napi_build_skb(e->buf - AIROHA_RX_HEADROOM,
q->buf_size);
if (!q->skb)
goto free_frag;
skb_reserve(q->skb, AIROHA_RX_HEADROOM);
__skb_put(q->skb, len);
skb_mark_for_recycle(q->skb);
q->skb->dev = netdev;
q->skb->protocol = eth_type_trans(q->skb, netdev);
q->skb->ip_summed = CHECKSUM_UNNECESSARY;
skb_record_rx_queue(q->skb, qid);
} else {
struct skb_shared_info *shinfo = skb_shinfo(q->skb);
int nr_frags = shinfo->nr_frags;
if (nr_frags >= ARRAY_SIZE(shinfo->frags))
goto free_frag;
skb_add_rx_frag(q->skb, nr_frags, page,
e->buf - page_address(page), len,
q->buf_size);
}
if (FIELD_GET(QDMA_DESC_MORE_MASK, desc_ctrl))
continue;
if (netdev_uses_dsa(netdev)) {
struct airoha_gdm_port *port = dev->port;
u32 msg0 = le32_to_cpu(READ_ONCE(desc->msg0));
u32 sptag = FIELD_GET(QDMA_ETH_RXMSG_SPTAG, msg0);
if (sptag < ARRAY_SIZE(port->dsa_meta) &&
port->dsa_meta[sptag])
skb_dst_set_noref(q->skb,
&port->dsa_meta[sptag]->dst);
}
msg1 = le32_to_cpu(READ_ONCE(desc->msg1));
hash = FIELD_GET(AIROHA_RXD4_FOE_ENTRY, msg1);
if (hash != AIROHA_RXD4_FOE_ENTRY)
skb_set_hash(q->skb, jhash_1word(hash, 0),
PKT_HASH_TYPE_L4);
reason = FIELD_GET(AIROHA_RXD4_PPE_CPU_REASON, msg1);
if (reason == PPE_CPU_REASON_HIT_UNBIND_RATE_REACHED)
airoha_ppe_check_skb(ð->ppe->dev, q->skb, hash,
false);
done++;
napi_gro_receive(&q->napi, q->skb);
q->skb = NULL;
continue;
free_frag:
if (q->skb) {
dev_kfree_skb(q->skb);
q->skb = NULL;
}
page_pool_put_full_page(q->page_pool, page, true);
}
airoha_qdma_fill_rx_queue(q);
return done;
}
static int airoha_qdma_rx_napi_poll(struct napi_struct *napi, int budget)
{
struct airoha_queue *q = container_of(napi, struct airoha_queue, napi);
int cur, done = 0;
do {
cur = airoha_qdma_rx_process(q, budget - done);
done += cur;
} while (cur && done < budget);
if (done < budget && napi_complete(napi)) {
struct airoha_qdma *qdma = q->qdma;
int i, qid = q - &qdma->q_rx[0];
int intr_reg = qid < RX_DONE_HIGH_OFFSET ? QDMA_INT_REG_IDX1
: QDMA_INT_REG_IDX2;
for (i = 0; i < ARRAY_SIZE(qdma->irq_banks); i++) {
if (!(BIT(qid) & RX_IRQ_BANK_PIN_MASK(i)))
continue;
airoha_qdma_irq_enable(&qdma->irq_banks[i], intr_reg,
BIT(qid % RX_DONE_HIGH_OFFSET));
}
}
return done;
}
static int airoha_qdma_init_rx_queue(struct airoha_queue *q,
struct airoha_qdma *qdma, int ndesc)
{
const struct page_pool_params pp_params = {
.order = 0,
.pool_size = 256,
.flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV,
.dma_dir = DMA_FROM_DEVICE,
.max_len = PAGE_SIZE,
.nid = NUMA_NO_NODE,
.dev = qdma->eth->dev,
.napi = &q->napi,
};
struct airoha_eth *eth = qdma->eth;
int qid = q - &qdma->q_rx[0], thr;
dma_addr_t dma_addr;
q->buf_size = PAGE_SIZE / 2;
q->qdma = qdma;
q->entry = devm_kzalloc(eth->dev, ndesc * sizeof(*q->entry),
GFP_KERNEL);
if (!q->entry)
return -ENOMEM;
q->desc = dmam_alloc_coherent(eth->dev, ndesc * sizeof(*q->desc),
&dma_addr, GFP_KERNEL);
if (!q->desc)
return -ENOMEM;
q->page_pool = page_pool_create(&pp_params);
if (IS_ERR(q->page_pool)) {
int err = PTR_ERR(q->page_pool);
q->page_pool = NULL;
return err;
}
q->ndesc = ndesc;
netif_napi_add(eth->napi_dev, &q->napi, airoha_qdma_rx_napi_poll);
airoha_qdma_wr(qdma, REG_RX_RING_BASE(qid), dma_addr);
airoha_qdma_rmw(qdma, REG_RX_RING_SIZE(qid),
RX_RING_SIZE_MASK,
FIELD_PREP(RX_RING_SIZE_MASK, ndesc));
thr = clamp(ndesc >> 3, 1, 32);
airoha_qdma_rmw(qdma, REG_RX_RING_SIZE(qid), RX_RING_THR_MASK,
FIELD_PREP(RX_RING_THR_MASK, thr));
airoha_qdma_rmw(qdma, REG_RX_DMA_IDX(qid), RX_RING_DMA_IDX_MASK,
FIELD_PREP(RX_RING_DMA_IDX_MASK, q->head));
airoha_qdma_set(qdma, REG_RX_SCATTER_CFG(qid), RX_RING_SG_EN_MASK);
airoha_qdma_fill_rx_queue(q);
return 0;
}
static void airoha_qdma_cleanup_rx_queue(struct airoha_queue *q)
{
struct airoha_qdma *qdma = q->qdma;
struct airoha_eth *eth = qdma->eth;
int qid = q - &qdma->q_rx[0];
while (q->queued) {
struct airoha_queue_entry *e = &q->entry[q->tail];
struct airoha_qdma_desc *desc = &q->desc[q->tail];
struct page *page = virt_to_head_page(e->buf);
dma_sync_single_for_cpu(eth->dev, e->dma_addr, e->dma_len,
page_pool_get_dma_dir(q->page_pool));
page_pool_put_full_page(q->page_pool, page, false);
WRITE_ONCE(desc->ctrl, 0);
WRITE_ONCE(desc->addr, 0);
WRITE_ONCE(desc->data, 0);
WRITE_ONCE(desc->msg0, 0);
WRITE_ONCE(desc->msg1, 0);
WRITE_ONCE(desc->msg2, 0);
WRITE_ONCE(desc->msg3, 0);
q->tail = (q->tail + 1) % q->ndesc;
q->queued--;
}
q->head = q->tail;
airoha_qdma_rmw(qdma, REG_RX_CPU_IDX(qid), RX_RING_CPU_IDX_MASK,
FIELD_PREP(RX_RING_CPU_IDX_MASK, q->head));
airoha_qdma_rmw(qdma, REG_RX_DMA_IDX(qid), RX_RING_DMA_IDX_MASK,
FIELD_PREP(RX_RING_DMA_IDX_MASK, q->tail));
}
static int airoha_qdma_init_rx(struct airoha_qdma *qdma)
{
int i;
for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
int err;
if (!(RX_DONE_INT_MASK & BIT(i))) {
continue;
}
err = airoha_qdma_init_rx_queue(&qdma->q_rx[i], qdma,
RX_DSCP_NUM(i));
if (err)
return err;
}
return 0;
}
static void airoha_qdma_wake_netdev_txqs(struct airoha_queue *q)
{
struct airoha_qdma *qdma = q->qdma;
struct airoha_eth *eth = qdma->eth;
int i, qid = q - &qdma->q_tx[0];
for (i = 0; i < ARRAY_SIZE(eth->ports); i++) {
struct airoha_gdm_port *port = eth->ports[i];
int d;
if (!port)
continue;
for (d = 0; d < ARRAY_SIZE(port->devs); d++) {
struct airoha_gdm_dev *dev = port->devs[d];
struct net_device *netdev;
int j;
if (!dev)
continue;
if (dev->qdma != qdma)
continue;
netdev = netdev_from_priv(dev);
for (j = 0; j < netdev->num_tx_queues; j++) {
if (airoha_qdma_get_txq(qdma, j) != qid)
continue;
netif_wake_subqueue(netdev, j);
}
}
}
q->txq_stopped = false;
}
static void airoha_unmap_xmit_buf(struct airoha_eth *eth,
struct airoha_queue_entry *e)
{
switch (e->dma_type) {
case AIROHA_DMA_MAP_PAGE:
dma_unmap_page(eth->dev, e->dma_addr, e->dma_len,
DMA_TO_DEVICE);
break;
case AIROHA_DMA_MAP_SINGLE:
dma_unmap_single(eth->dev, e->dma_addr, e->dma_len,
DMA_TO_DEVICE);
break;
case AIROHA_DMA_UNMAPPED:
default:
break;
}
e->dma_type = AIROHA_DMA_UNMAPPED;
}
static int airoha_qdma_tx_napi_poll(struct napi_struct *napi, int budget)
{
struct airoha_tx_irq_queue *irq_q;
int id, done = 0, irq_queued;
struct airoha_qdma *qdma;
struct airoha_eth *eth;
u32 status, head;
irq_q = container_of(napi, struct airoha_tx_irq_queue, napi);
qdma = irq_q->qdma;
id = irq_q - &qdma->q_tx_irq[0];
eth = qdma->eth;
status = airoha_qdma_rr(qdma, REG_IRQ_STATUS(id));
head = FIELD_GET(IRQ_HEAD_IDX_MASK, status);
head = head % irq_q->size;
irq_queued = FIELD_GET(IRQ_ENTRY_LEN_MASK, status);
while (irq_queued > 0 && done < budget) {
u32 qid, val = irq_q->q[head];
struct airoha_qdma_desc *desc;
struct airoha_queue_entry *e;
struct airoha_queue *q;
u32 index, desc_ctrl;
struct sk_buff *skb;
if (val == 0xff)
break;
irq_q->q[head] = 0xff;
head = (head + 1) % irq_q->size;
irq_queued--;
done++;
qid = FIELD_GET(IRQ_RING_IDX_MASK, val);
if (qid >= ARRAY_SIZE(qdma->q_tx))
continue;
q = &qdma->q_tx[qid];
if (!q->ndesc)
continue;
index = FIELD_GET(IRQ_DESC_IDX_MASK, val);
if (index >= q->ndesc)
continue;
spin_lock_bh(&q->lock);
if (!q->queued)
goto unlock;
desc = &q->desc[index];
desc_ctrl = le32_to_cpu(desc->ctrl);
if (!(desc_ctrl & QDMA_DESC_DONE_MASK) &&
!(desc_ctrl & QDMA_DESC_DROP_MASK))
goto unlock;
e = &q->entry[index];
skb = e->skb;
e->skb = NULL;
airoha_unmap_xmit_buf(eth, e);
list_add_tail(&e->list, &q->tx_list);
WRITE_ONCE(desc->msg0, 0);
WRITE_ONCE(desc->msg1, 0);
q->queued--;
if (skb) {
struct netdev_queue *txq;
txq = skb_get_tx_queue(skb->dev, skb);
netdev_tx_completed_queue(txq, 1, skb->len);
dev_kfree_skb_any(skb);
}
if (q->txq_stopped && q->ndesc - q->queued >= q->free_thr) {
airoha_qdma_wake_netdev_txqs(q);
}
unlock:
spin_unlock_bh(&q->lock);
}
if (done) {
int i, len = done >> 7;
for (i = 0; i < len; i++)
airoha_qdma_rmw(qdma, REG_IRQ_CLEAR_LEN(id),
IRQ_CLEAR_LEN_MASK, 0x80);
airoha_qdma_rmw(qdma, REG_IRQ_CLEAR_LEN(id),
IRQ_CLEAR_LEN_MASK, (done & 0x7f));
}
if (done < budget && napi_complete(napi))
airoha_qdma_irq_enable(&qdma->irq_banks[0], QDMA_INT_REG_IDX0,
TX_DONE_INT_MASK(id));
return done;
}
static int airoha_qdma_init_tx_queue(struct airoha_queue *q,
struct airoha_qdma *qdma, int size)
{
struct airoha_eth *eth = qdma->eth;
int i, qid = q - &qdma->q_tx[0];
dma_addr_t dma_addr;
spin_lock_init(&q->lock);
q->qdma = qdma;
q->free_thr = 1 + MAX_SKB_FRAGS;
INIT_LIST_HEAD(&q->tx_list);
q->entry = devm_kzalloc(eth->dev, size * sizeof(*q->entry),
GFP_KERNEL);
if (!q->entry)
return -ENOMEM;
q->desc = dmam_alloc_coherent(eth->dev, size * sizeof(*q->desc),
&dma_addr, GFP_KERNEL);
if (!q->desc)
return -ENOMEM;
for (i = 0; i < size; i++) {
u32 val = FIELD_PREP(QDMA_DESC_DONE_MASK, 1);
list_add_tail(&q->entry[i].list, &q->tx_list);
WRITE_ONCE(q->desc[i].ctrl, cpu_to_le32(val));
}
q->ndesc = size;
airoha_qdma_set(qdma, REG_TX_RING_BLOCKING(qid),
TX_RING_IRQ_BLOCKING_TX_DROP_EN_MASK);
airoha_qdma_wr(qdma, REG_TX_RING_BASE(qid), dma_addr);
airoha_qdma_rmw(qdma, REG_TX_CPU_IDX(qid), TX_RING_CPU_IDX_MASK,
FIELD_PREP(TX_RING_CPU_IDX_MASK, 0));
airoha_qdma_rmw(qdma, REG_TX_DMA_IDX(qid), TX_RING_DMA_IDX_MASK,
FIELD_PREP(TX_RING_DMA_IDX_MASK, 0));
return 0;
}
static int airoha_qdma_tx_irq_init(struct airoha_tx_irq_queue *irq_q,
struct airoha_qdma *qdma, int size)
{
int id = irq_q - &qdma->q_tx_irq[0];
struct airoha_eth *eth = qdma->eth;
dma_addr_t dma_addr;
irq_q->q = dmam_alloc_coherent(eth->dev, size * sizeof(u32),
&dma_addr, GFP_KERNEL);
if (!irq_q->q)
return -ENOMEM;
memset(irq_q->q, 0xff, size * sizeof(u32));
irq_q->size = size;
irq_q->qdma = qdma;
netif_napi_add_tx(eth->napi_dev, &irq_q->napi,
airoha_qdma_tx_napi_poll);
airoha_qdma_wr(qdma, REG_TX_IRQ_BASE(id), dma_addr);
airoha_qdma_rmw(qdma, REG_TX_IRQ_CFG(id), TX_IRQ_DEPTH_MASK,
FIELD_PREP(TX_IRQ_DEPTH_MASK, size));
airoha_qdma_rmw(qdma, REG_TX_IRQ_CFG(id), TX_IRQ_THR_MASK,
FIELD_PREP(TX_IRQ_THR_MASK, 1));
return 0;
}
static int airoha_qdma_init_tx(struct airoha_qdma *qdma)
{
int i, err;
for (i = 0; i < ARRAY_SIZE(qdma->q_tx_irq); i++) {
err = airoha_qdma_tx_irq_init(&qdma->q_tx_irq[i], qdma,
IRQ_QUEUE_LEN(i));
if (err)
return err;
}
for (i = 0; i < ARRAY_SIZE(qdma->q_tx); i++) {
err = airoha_qdma_init_tx_queue(&qdma->q_tx[i], qdma,
TX_DSCP_NUM);
if (err)
return err;
}
return 0;
}
static void airoha_qdma_tx_cleanup(struct airoha_qdma *qdma)
{
u32 status;
int i;
airoha_qdma_clear(qdma, REG_QDMA_GLOBAL_CFG,
GLOBAL_CFG_TX_DMA_EN_MASK);
if (read_poll_timeout(airoha_qdma_rr, status,
!(status & GLOBAL_CFG_TX_DMA_BUSY_MASK),
USEC_PER_MSEC, 50 * USEC_PER_MSEC, true,
qdma, REG_QDMA_GLOBAL_CFG))
dev_warn(qdma->eth->dev, "QDMA TX DMA busy timeout\n");
for (i = 0; i < ARRAY_SIZE(qdma->q_tx); i++) {
struct airoha_queue *q = &qdma->q_tx[i];
u16 index = 0;
int j;
if (!q->ndesc)
continue;
spin_lock_bh(&q->lock);
q->flushing = true;
for (j = 0; j < q->ndesc; j++) {
struct airoha_queue_entry *e = &q->entry[j];
struct airoha_qdma_desc *desc = &q->desc[j];
struct sk_buff *skb = e->skb;
if (e->dma_type == AIROHA_DMA_UNMAPPED)
continue;
airoha_unmap_xmit_buf(qdma->eth, e);
list_add_tail(&e->list, &q->tx_list);
WRITE_ONCE(desc->ctrl, 0);
WRITE_ONCE(desc->addr, 0);
WRITE_ONCE(desc->data, 0);
WRITE_ONCE(desc->msg0, 0);
WRITE_ONCE(desc->msg1, 0);
WRITE_ONCE(desc->msg2, 0);
if (skb) {
struct netdev_queue *txq;
txq = skb_get_tx_queue(skb->dev, skb);
netdev_tx_completed_queue(txq, 1, skb->len);
dev_kfree_skb_any(skb);
e->skb = NULL;
}
q->queued--;
}
if (!list_empty(&q->tx_list)) {
struct airoha_queue_entry *e;
e = list_first_entry(&q->tx_list,
struct airoha_queue_entry, list);
index = e - q->entry;
}
airoha_qdma_rmw(qdma, REG_TX_CPU_IDX(i), TX_RING_CPU_IDX_MASK,
FIELD_PREP(TX_RING_CPU_IDX_MASK, index));
airoha_qdma_rmw(qdma, REG_TX_DMA_IDX(i), TX_RING_DMA_IDX_MASK,
FIELD_PREP(TX_RING_DMA_IDX_MASK, index));
spin_unlock_bh(&q->lock);
}
}
static int airoha_qdma_init_hfwd_queues(struct airoha_qdma *qdma)
{
int size, index, num_desc = HW_DSCP_NUM;
struct airoha_eth *eth = qdma->eth;
int id = qdma - ð->qdma[0];
u32 status, buf_size;
dma_addr_t dma_addr;
const char *name;
name = devm_kasprintf(eth->dev, GFP_KERNEL, "qdma%d-buf", id);
if (!name)
return -ENOMEM;
buf_size = id ? AIROHA_MAX_PACKET_SIZE / 2 : AIROHA_MAX_PACKET_SIZE;
index = of_property_match_string(eth->dev->of_node,
"memory-region-names", name);
if (index >= 0) {
struct reserved_mem *rmem;
struct device_node *np;
np = of_parse_phandle(eth->dev->of_node, "memory-region",
index);
if (!np)
return -ENODEV;
rmem = of_reserved_mem_lookup(np);
of_node_put(np);
if (!rmem)
return -ENODEV;
dma_addr = rmem->base;
num_desc = div_u64(rmem->size, buf_size);
} else {
size = buf_size * num_desc;
if (!dmam_alloc_coherent(eth->dev, size, &dma_addr,
GFP_KERNEL))
return -ENOMEM;
}
airoha_qdma_wr(qdma, REG_FWD_BUF_BASE, dma_addr);
size = num_desc * sizeof(struct airoha_qdma_fwd_desc);
if (!dmam_alloc_coherent(eth->dev, size, &dma_addr, GFP_KERNEL))
return -ENOMEM;
airoha_qdma_wr(qdma, REG_FWD_DSCP_BASE, dma_addr);
airoha_qdma_rmw(qdma, REG_HW_FWD_DSCP_CFG,
HW_FWD_DSCP_PAYLOAD_SIZE_MASK,
FIELD_PREP(HW_FWD_DSCP_PAYLOAD_SIZE_MASK, !!id));
airoha_qdma_rmw(qdma, REG_FWD_DSCP_LOW_THR, FWD_DSCP_LOW_THR_MASK,
FIELD_PREP(FWD_DSCP_LOW_THR_MASK, 128));
airoha_qdma_rmw(qdma, REG_LMGR_INIT_CFG,
LMGR_INIT_START | LMGR_SRAM_MODE_MASK |
HW_FWD_DESC_NUM_MASK,
FIELD_PREP(HW_FWD_DESC_NUM_MASK, num_desc) |
LMGR_INIT_START | LMGR_SRAM_MODE_MASK);
return read_poll_timeout(airoha_qdma_rr, status,
!(status & LMGR_INIT_START), USEC_PER_MSEC,
30 * USEC_PER_MSEC, true, qdma,
REG_LMGR_INIT_CFG);
}
static void airoha_qdma_init_qos(struct airoha_qdma *qdma)
{
airoha_qdma_clear(qdma, REG_TXWRR_MODE_CFG, TWRR_WEIGHT_SCALE_MASK);
airoha_qdma_set(qdma, REG_TXWRR_MODE_CFG, TWRR_WEIGHT_BASE_MASK);
airoha_qdma_clear(qdma, REG_PSE_BUF_USAGE_CFG,
PSE_BUF_ESTIMATE_EN_MASK);
airoha_qdma_set(qdma, REG_EGRESS_RATE_METER_CFG,
EGRESS_RATE_METER_EN_MASK |
EGRESS_RATE_METER_EQ_RATE_EN_MASK);
airoha_qdma_rmw(qdma, REG_EGRESS_RATE_METER_CFG,
EGRESS_RATE_METER_WINDOW_SZ_MASK,
FIELD_PREP(EGRESS_RATE_METER_WINDOW_SZ_MASK, 0x1f));
airoha_qdma_rmw(qdma, REG_EGRESS_RATE_METER_CFG,
EGRESS_RATE_METER_TIMESLICE_MASK,
FIELD_PREP(EGRESS_RATE_METER_TIMESLICE_MASK, 0x7ff));
airoha_qdma_set(qdma, REG_GLB_TRTCM_CFG, GLB_TRTCM_EN_MASK);
airoha_qdma_rmw(qdma, REG_GLB_TRTCM_CFG, GLB_FAST_TICK_MASK,
FIELD_PREP(GLB_FAST_TICK_MASK, 25));
airoha_qdma_rmw(qdma, REG_GLB_TRTCM_CFG, GLB_SLOW_TICK_RATIO_MASK,
FIELD_PREP(GLB_SLOW_TICK_RATIO_MASK, 40));
airoha_qdma_set(qdma, REG_EGRESS_TRTCM_CFG, EGRESS_TRTCM_EN_MASK);
airoha_qdma_rmw(qdma, REG_EGRESS_TRTCM_CFG, EGRESS_FAST_TICK_MASK,
FIELD_PREP(EGRESS_FAST_TICK_MASK, 25));
airoha_qdma_rmw(qdma, REG_EGRESS_TRTCM_CFG,
EGRESS_SLOW_TICK_RATIO_MASK,
FIELD_PREP(EGRESS_SLOW_TICK_RATIO_MASK, 40));
airoha_qdma_set(qdma, REG_INGRESS_TRTCM_CFG, INGRESS_TRTCM_EN_MASK);
airoha_qdma_clear(qdma, REG_INGRESS_TRTCM_CFG,
INGRESS_TRTCM_MODE_MASK);
airoha_qdma_rmw(qdma, REG_INGRESS_TRTCM_CFG, INGRESS_FAST_TICK_MASK,
FIELD_PREP(INGRESS_FAST_TICK_MASK, 125));
airoha_qdma_rmw(qdma, REG_INGRESS_TRTCM_CFG,
INGRESS_SLOW_TICK_RATIO_MASK,
FIELD_PREP(INGRESS_SLOW_TICK_RATIO_MASK, 8));
airoha_qdma_set(qdma, REG_SLA_TRTCM_CFG, SLA_TRTCM_EN_MASK);
airoha_qdma_rmw(qdma, REG_SLA_TRTCM_CFG, SLA_FAST_TICK_MASK,
FIELD_PREP(SLA_FAST_TICK_MASK, 25));
airoha_qdma_rmw(qdma, REG_SLA_TRTCM_CFG, SLA_SLOW_TICK_RATIO_MASK,
FIELD_PREP(SLA_SLOW_TICK_RATIO_MASK, 40));
}
static void airoha_qdma_init_qos_stats(struct airoha_qdma *qdma)
{
int i;
for (i = 0; i < AIROHA_NUM_QOS_CHANNELS; i++) {
airoha_qdma_wr(qdma, REG_CNTR_VAL(i << 1), 0);
airoha_qdma_wr(qdma, REG_CNTR_CFG(i << 1),
CNTR_EN_MASK | CNTR_ALL_QUEUE_EN_MASK |
CNTR_ALL_DSCP_RING_EN_MASK |
FIELD_PREP(CNTR_CHAN_MASK, i));
airoha_qdma_wr(qdma, REG_CNTR_VAL((i << 1) + 1), 0);
airoha_qdma_wr(qdma, REG_CNTR_CFG((i << 1) + 1),
CNTR_EN_MASK | CNTR_ALL_QUEUE_EN_MASK |
CNTR_ALL_DSCP_RING_EN_MASK |
FIELD_PREP(CNTR_SRC_MASK, 1) |
FIELD_PREP(CNTR_CHAN_MASK, i));
}
}
static int airoha_qdma_hw_init(struct airoha_qdma *qdma)
{
int i;
for (i = 0; i < ARRAY_SIZE(qdma->irq_banks); i++) {
airoha_qdma_wr(qdma, REG_INT_STATUS(i), 0xffffffff);
airoha_qdma_irq_enable(&qdma->irq_banks[i], QDMA_INT_REG_IDX0,
INT_RX0_MASK(RX_IRQ_BANK_PIN_MASK(i)));
airoha_qdma_irq_enable(&qdma->irq_banks[i], QDMA_INT_REG_IDX1,
INT_RX1_MASK(RX_IRQ_BANK_PIN_MASK(i)));
airoha_qdma_irq_enable(&qdma->irq_banks[i], QDMA_INT_REG_IDX2,
INT_RX2_MASK(RX_IRQ_BANK_PIN_MASK(i)));
airoha_qdma_irq_enable(&qdma->irq_banks[i], QDMA_INT_REG_IDX3,
INT_RX3_MASK(RX_IRQ_BANK_PIN_MASK(i)));
}
airoha_qdma_irq_enable(&qdma->irq_banks[0], QDMA_INT_REG_IDX0,
TX_COHERENT_LOW_INT_MASK | INT_TX_MASK);
airoha_qdma_irq_enable(&qdma->irq_banks[0], QDMA_INT_REG_IDX4,
TX_COHERENT_HIGH_INT_MASK);
for (i = 0; i < ARRAY_SIZE(qdma->q_tx); i++) {
if (!qdma->q_tx[i].ndesc)
continue;
if (TX_RING_IRQ_BLOCKING_MAP_MASK & BIT(i))
airoha_qdma_set(qdma, REG_TX_RING_BLOCKING(i),
TX_RING_IRQ_BLOCKING_CFG_MASK);
else
airoha_qdma_clear(qdma, REG_TX_RING_BLOCKING(i),
TX_RING_IRQ_BLOCKING_CFG_MASK);
}
airoha_qdma_wr(qdma, REG_QDMA_GLOBAL_CFG,
FIELD_PREP(GLOBAL_CFG_DMA_PREFERENCE_MASK, 3) |
GLOBAL_CFG_CPU_TXR_RR_MASK |
GLOBAL_CFG_PAYLOAD_BYTE_SWAP_MASK |
GLOBAL_CFG_MULTICAST_MODIFY_FP_MASK |
GLOBAL_CFG_MULTICAST_EN_MASK |
GLOBAL_CFG_IRQ0_EN_MASK | GLOBAL_CFG_IRQ1_EN_MASK |
GLOBAL_CFG_TX_WB_DONE_MASK |
FIELD_PREP(GLOBAL_CFG_MAX_ISSUE_NUM_MASK, 2));
airoha_qdma_init_qos(qdma);
for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
if (!qdma->q_rx[i].ndesc)
continue;
airoha_qdma_clear(qdma, REG_RX_DELAY_INT_IDX(i),
RX_DELAY_INT_MASK);
}
airoha_qdma_set(qdma, REG_TXQ_CNGST_CFG,
TXQ_CNGST_DROP_EN | TXQ_CNGST_DEI_DROP_EN);
airoha_qdma_init_qos_stats(qdma);
return 0;
}
static irqreturn_t airoha_irq_handler(int irq, void *dev_instance)
{
struct airoha_irq_bank *irq_bank = dev_instance;
struct airoha_qdma *qdma = irq_bank->qdma;
u32 rx_intr_mask = 0, rx_intr1, rx_intr2;
u32 intr[ARRAY_SIZE(irq_bank->irqmask)];
int i;
for (i = 0; i < ARRAY_SIZE(intr); i++) {
intr[i] = airoha_qdma_rr(qdma, REG_INT_STATUS(i));
intr[i] &= irq_bank->irqmask[i];
airoha_qdma_wr(qdma, REG_INT_STATUS(i), intr[i]);
}
if (!test_bit(DEV_STATE_INITIALIZED, &qdma->eth->state))
return IRQ_NONE;
rx_intr1 = intr[1] & RX_DONE_LOW_INT_MASK;
if (rx_intr1) {
airoha_qdma_irq_disable(irq_bank, QDMA_INT_REG_IDX1, rx_intr1);
rx_intr_mask |= rx_intr1;
}
rx_intr2 = intr[2] & RX_DONE_HIGH_INT_MASK;
if (rx_intr2) {
airoha_qdma_irq_disable(irq_bank, QDMA_INT_REG_IDX2, rx_intr2);
rx_intr_mask |= (rx_intr2 << 16);
}
for (i = 0; rx_intr_mask && i < ARRAY_SIZE(qdma->q_rx); i++) {
if (!qdma->q_rx[i].ndesc)
continue;
if (rx_intr_mask & BIT(i))
napi_schedule(&qdma->q_rx[i].napi);
}
if (intr[0] & INT_TX_MASK) {
for (i = 0; i < ARRAY_SIZE(qdma->q_tx_irq); i++) {
if (!(intr[0] & TX_DONE_INT_MASK(i)))
continue;
airoha_qdma_irq_disable(irq_bank, QDMA_INT_REG_IDX0,
TX_DONE_INT_MASK(i));
napi_schedule(&qdma->q_tx_irq[i].napi);
}
}
return IRQ_HANDLED;
}
static int airoha_qdma_init_irq_banks(struct platform_device *pdev,
struct airoha_qdma *qdma)
{
struct airoha_eth *eth = qdma->eth;
int i, id = qdma - ð->qdma[0];
for (i = 0; i < ARRAY_SIZE(qdma->irq_banks); i++) {
struct airoha_irq_bank *irq_bank = &qdma->irq_banks[i];
int err, irq_index = 4 * id + i;
const char *name;
spin_lock_init(&irq_bank->irq_lock);
irq_bank->qdma = qdma;
irq_bank->irq = platform_get_irq(pdev, irq_index);
if (irq_bank->irq < 0)
return irq_bank->irq;
name = devm_kasprintf(eth->dev, GFP_KERNEL,
KBUILD_MODNAME ".%d", irq_index);
if (!name)
return -ENOMEM;
err = devm_request_irq(eth->dev, irq_bank->irq,
airoha_irq_handler, IRQF_SHARED, name,
irq_bank);
if (err)
return err;
}
return 0;
}
static int airoha_qdma_init(struct platform_device *pdev,
struct airoha_eth *eth,
struct airoha_qdma *qdma)
{
int err, id = qdma - ð->qdma[0];
const char *res;
qdma->eth = eth;
res = devm_kasprintf(eth->dev, GFP_KERNEL, "qdma%d", id);
if (!res)
return -ENOMEM;
qdma->regs = devm_platform_ioremap_resource_byname(pdev, res);
if (IS_ERR(qdma->regs))
return dev_err_probe(eth->dev, PTR_ERR(qdma->regs),
"failed to iomap qdma%d regs\n", id);
err = airoha_qdma_init_irq_banks(pdev, qdma);
if (err)
return err;
err = airoha_qdma_init_rx(qdma);
if (err)
return err;
err = airoha_qdma_init_tx(qdma);
if (err)
return err;
err = airoha_qdma_init_hfwd_queues(qdma);
if (err)
return err;
return airoha_qdma_hw_init(qdma);
}
static void airoha_qdma_cleanup(struct airoha_eth *eth,
struct airoha_qdma *qdma)
{
int i;
if (test_bit(DEV_STATE_INITIALIZED, ð->state)) {
u32 status;
airoha_qdma_clear(qdma, REG_QDMA_GLOBAL_CFG,
GLOBAL_CFG_RX_DMA_EN_MASK);
if (read_poll_timeout(airoha_qdma_rr, status,
!(status & GLOBAL_CFG_RX_DMA_BUSY_MASK),
USEC_PER_MSEC, 50 * USEC_PER_MSEC, true,
qdma, REG_QDMA_GLOBAL_CFG))
dev_warn(eth->dev, "QDMA RX DMA busy timeout\n");
}
for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
if (!qdma->q_rx[i].ndesc)
continue;
netif_napi_del(&qdma->q_rx[i].napi);
airoha_qdma_cleanup_rx_queue(&qdma->q_rx[i]);
if (qdma->q_rx[i].page_pool) {
page_pool_destroy(qdma->q_rx[i].page_pool);
qdma->q_rx[i].page_pool = NULL;
}
}
for (i = 0; i < ARRAY_SIZE(qdma->q_tx_irq); i++) {
if (!qdma->q_tx_irq[i].size)
continue;
netif_napi_del(&qdma->q_tx_irq[i].napi);
}
}
static int airoha_hw_init(struct platform_device *pdev,
struct airoha_eth *eth)
{
int err, i;
err = reset_control_bulk_assert(eth->soc->num_xsi_rsts, eth->xsi_rsts);
if (err)
return err;
err = reset_control_bulk_assert(ARRAY_SIZE(eth->rsts), eth->rsts);
if (err)
return err;
msleep(20);
err = reset_control_bulk_deassert(ARRAY_SIZE(eth->rsts), eth->rsts);
if (err)
return err;
msleep(20);
err = airoha_fe_init(eth);
if (err)
return err;
for (i = 0; i < ARRAY_SIZE(eth->qdma); i++) {
err = airoha_qdma_init(pdev, eth, ð->qdma[i]);
if (err)
goto error;
}
err = airoha_ppe_init(eth);
if (err)
goto error;
set_bit(DEV_STATE_INITIALIZED, ð->state);
return 0;
error:
for (i = 0; i < ARRAY_SIZE(eth->qdma); i++)
airoha_qdma_cleanup(eth, ð->qdma[i]);
return err;
}
static void airoha_hw_cleanup(struct airoha_eth *eth)
{
int i;
for (i = 0; i < ARRAY_SIZE(eth->qdma); i++)
airoha_qdma_cleanup(eth, ð->qdma[i]);
airoha_ppe_deinit(eth);
}
static void airoha_qdma_start_napi(struct airoha_qdma *qdma)
{
int i;
for (i = 0; i < ARRAY_SIZE(qdma->q_tx_irq); i++)
napi_enable(&qdma->q_tx_irq[i].napi);
for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
if (!qdma->q_rx[i].ndesc)
continue;
napi_enable(&qdma->q_rx[i].napi);
}
}
static void airoha_qdma_stop_napi(struct airoha_qdma *qdma)
{
int i;
for (i = 0; i < ARRAY_SIZE(qdma->q_tx_irq); i++)
napi_disable(&qdma->q_tx_irq[i].napi);
for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
if (!qdma->q_rx[i].ndesc)
continue;
napi_disable(&qdma->q_rx[i].napi);
}
}
static void airoha_update_hw_stats(struct airoha_gdm_dev *dev)
{
struct airoha_gdm_port *port = dev->port;
struct airoha_eth *eth = dev->eth;
u32 val, i = 0;
u64 data;
spin_lock(&port->stats_lock);
if (port->id == AIROHA_GDM3_IDX || port->id == AIROHA_GDM4_IDX)
airoha_fe_rmw(eth, REG_FE_GDM_MIB_CFG(port->id),
FE_TX_MIB_ID_MASK | FE_RX_MIB_ID_MASK,
FIELD_PREP(FE_TX_MIB_ID_MASK, dev->nbq) |
FIELD_PREP(FE_RX_MIB_ID_MASK, dev->nbq));
u64_stats_update_begin(&dev->stats.syncp);
val = airoha_fe_rr(eth, REG_FE_GDM_TX_OK_PKT_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_OK_PKT_CNT_L(port->id));
data += val;
dev->stats.tx_ok_pkts = max(data, dev->stats.tx_ok_pkts);
val = airoha_fe_rr(eth, REG_FE_GDM_TX_OK_BYTE_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_OK_BYTE_CNT_L(port->id));
data += val;
dev->stats.tx_ok_bytes = max(data, dev->stats.tx_ok_bytes);
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_DROP_CNT(port->id));
dev->stats.tx_drops += (u32)(val - dev->stats.mib_prev.tx_drops);
dev->stats.mib_prev.tx_drops = val;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_BC_CNT(port->id));
dev->stats.tx_broadcast += (u32)(val - dev->stats.mib_prev.tx_broadcast);
dev->stats.mib_prev.tx_broadcast = val;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_MC_CNT(port->id));
dev->stats.tx_multicast += (u32)(val - dev->stats.mib_prev.tx_multicast);
dev->stats.mib_prev.tx_multicast = val;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_RUNT_CNT(port->id));
dev->stats.mib_prev.tx_runt64 +=
(u32)(val - dev->stats.mib_prev.tx_runt);
dev->stats.mib_prev.tx_runt = val;
data = dev->stats.mib_prev.tx_runt64;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_E64_CNT_H(port->id));
data += (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_E64_CNT_L(port->id));
data += val;
dev->stats.tx_len[i] = max(data, dev->stats.tx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_L64_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_L64_CNT_L(port->id));
data += val;
dev->stats.tx_len[i] = max(data, dev->stats.tx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_L127_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_L127_CNT_L(port->id));
data += val;
dev->stats.tx_len[i] = max(data, dev->stats.tx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_L255_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_L255_CNT_L(port->id));
data += val;
dev->stats.tx_len[i] = max(data, dev->stats.tx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_L511_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_L511_CNT_L(port->id));
data += val;
dev->stats.tx_len[i] = max(data, dev->stats.tx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_L1023_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_L1023_CNT_L(port->id));
data += val;
dev->stats.tx_len[i] = max(data, dev->stats.tx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_TX_ETH_LONG_CNT(port->id));
dev->stats.tx_len[i++] += (u32)(val - dev->stats.mib_prev.tx_long);
dev->stats.mib_prev.tx_long = val;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_OK_PKT_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_OK_PKT_CNT_L(port->id));
data += val;
dev->stats.rx_ok_pkts = max(data, dev->stats.rx_ok_pkts);
val = airoha_fe_rr(eth, REG_FE_GDM_RX_OK_BYTE_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_OK_BYTE_CNT_L(port->id));
data += val;
dev->stats.rx_ok_bytes = max(data, dev->stats.rx_ok_bytes);
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_DROP_CNT(port->id));
dev->stats.rx_drops += (u32)(val - dev->stats.mib_prev.rx_drops);
dev->stats.mib_prev.rx_drops = val;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_BC_CNT(port->id));
dev->stats.rx_broadcast += (u32)(val - dev->stats.mib_prev.rx_broadcast);
dev->stats.mib_prev.rx_broadcast = val;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_MC_CNT(port->id));
dev->stats.rx_multicast += (u32)(val - dev->stats.mib_prev.rx_multicast);
dev->stats.mib_prev.rx_multicast = val;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ERROR_DROP_CNT(port->id));
dev->stats.rx_errors += (u32)(val - dev->stats.mib_prev.rx_errors);
dev->stats.mib_prev.rx_errors = val;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_CRC_ERR_CNT(port->id));
dev->stats.rx_crc_error += (u32)(val - dev->stats.mib_prev.rx_crc_error);
dev->stats.mib_prev.rx_crc_error = val;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_OVERFLOW_DROP_CNT(port->id));
dev->stats.rx_over_errors += (u32)(val - dev->stats.mib_prev.rx_over_errors);
dev->stats.mib_prev.rx_over_errors = val;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_FRAG_CNT(port->id));
dev->stats.rx_fragment += (u32)(val - dev->stats.mib_prev.rx_fragment);
dev->stats.mib_prev.rx_fragment = val;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_JABBER_CNT(port->id));
dev->stats.rx_jabber += (u32)(val - dev->stats.mib_prev.rx_jabber);
dev->stats.mib_prev.rx_jabber = val;
i = 0;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_RUNT_CNT(port->id));
dev->stats.mib_prev.rx_runt64 +=
(u32)(val - dev->stats.mib_prev.rx_runt);
dev->stats.mib_prev.rx_runt = val;
data = dev->stats.mib_prev.rx_runt64;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_E64_CNT_H(port->id));
data += (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_E64_CNT_L(port->id));
data += val;
dev->stats.rx_len[i] = max(data, dev->stats.rx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_L64_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_L64_CNT_L(port->id));
data += val;
dev->stats.rx_len[i] = max(data, dev->stats.rx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_L127_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_L127_CNT_L(port->id));
data += val;
dev->stats.rx_len[i] = max(data, dev->stats.rx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_L255_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_L255_CNT_L(port->id));
data += val;
dev->stats.rx_len[i] = max(data, dev->stats.rx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_L511_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_L511_CNT_L(port->id));
data += val;
dev->stats.rx_len[i] = max(data, dev->stats.rx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_L1023_CNT_H(port->id));
data = (u64)val << 32;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_L1023_CNT_L(port->id));
data += val;
dev->stats.rx_len[i] = max(data, dev->stats.rx_len[i]);
i++;
val = airoha_fe_rr(eth, REG_FE_GDM_RX_ETH_LONG_CNT(port->id));
dev->stats.rx_len[i] += (u32)(val - dev->stats.mib_prev.rx_long);
dev->stats.mib_prev.rx_long = val;
u64_stats_update_end(&dev->stats.syncp);
spin_unlock(&port->stats_lock);
}
static void airoha_dev_set_xmit_frame_size(struct net_device *netdev)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
airoha_ppe_set_xmit_frame_size(dev);
if (!airoha_is_lan_gdm_dev(dev))
airoha_fe_rmw(dev->eth, REG_WAN_MTU0, WAN_MTU0_MASK,
FIELD_PREP(WAN_MTU0_MASK,
VLAN_ETH_HLEN + netdev->mtu));
}
static int airoha_dev_open(struct net_device *netdev)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_gdm_port *port = dev->port;
struct airoha_qdma *qdma = dev->qdma;
u32 pse_port = FE_PSE_PORT_PPE1;
int err;
netif_tx_start_all_queues(netdev);
err = airoha_set_vip_for_gdm_port(dev, true);
if (err)
return err;
if (netdev_uses_dsa(netdev))
airoha_fe_set(qdma->eth, REG_GDM_INGRESS_CFG(port->id),
GDM_STAG_EN_MASK);
else
airoha_fe_clear(qdma->eth, REG_GDM_INGRESS_CFG(port->id),
GDM_STAG_EN_MASK);
airoha_dev_set_xmit_frame_size(netdev);
port->users++;
if (!airoha_is_lan_gdm_dev(dev) &&
airoha_ppe_is_enabled(qdma->eth, 1))
pse_port = FE_PSE_PORT_PPE2;
airoha_set_gdm_port_fwd_cfg(qdma->eth, REG_GDM_FWD_CFG(port->id),
pse_port);
return 0;
}
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 = dev->qdma;
netif_tx_disable(netdev);
airoha_set_vip_for_gdm_port(dev, false);
if (--port->users)
airoha_ppe_set_xmit_frame_size(dev);
else
airoha_set_gdm_port_fwd_cfg(qdma->eth,
REG_GDM_FWD_CFG(port->id),
FE_PSE_PORT_DROP);
return 0;
}
static int airoha_dev_set_macaddr(struct net_device *netdev, void *p)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct sockaddr *addr = p;
int err;
err = eth_prepare_mac_addr_change(netdev, p);
if (err)
return err;
err = airoha_set_macaddr(dev, addr->sa_data);
if (err)
return err;
eth_commit_mac_addr_change(netdev, p);
return 0;
}
static int airoha_enable_gdm2_loopback(struct airoha_gdm_dev *dev)
{
struct airoha_gdm_port *port = dev->port;
struct airoha_eth *eth = dev->eth;
u32 val, pse_port, chan;
int i, src_port;
src_port = eth->soc->ops.get_sport(port, dev->nbq);
if (src_port < 0)
return src_port;
airoha_set_gdm_port_fwd_cfg(eth, REG_GDM_FWD_CFG(AIROHA_GDM2_IDX),
FE_PSE_PORT_DROP);
airoha_fe_clear(eth, REG_GDM_FWD_CFG(AIROHA_GDM2_IDX),
GDM_STRIP_CRC_MASK);
airoha_fe_wr(eth, REG_GDM_TXCHN_EN(AIROHA_GDM2_IDX), 0xffffffff);
airoha_fe_wr(eth, REG_GDM_RXCHN_EN(AIROHA_GDM2_IDX), 0xffff);
chan = port->id == AIROHA_GDM3_IDX ? airoha_is_7581(eth) ? 4 : 3 : 0;
airoha_fe_rmw(eth, REG_GDM_LPBK_CFG(AIROHA_GDM2_IDX),
LPBK_CHAN_MASK | LPBK_MODE_MASK | LPBK_EN_MASK,
FIELD_PREP(LPBK_CHAN_MASK, chan) |
LBK_GAP_MODE_MASK | LBK_LEN_MODE_MASK |
LBK_CHAN_MODE_MASK | LPBK_EN_MASK);
pse_port = port->id == AIROHA_GDM3_IDX ? FE_PSE_PORT_GDM3
: FE_PSE_PORT_GDM4;
airoha_set_gdm_port_fwd_cfg(eth, REG_GDM_FWD_CFG(AIROHA_GDM2_IDX),
pse_port);
airoha_fe_clear(eth, REG_FE_VIP_PORT_EN, BIT(AIROHA_GDM2_IDX));
airoha_fe_clear(eth, REG_FE_IFC_PORT_EN, BIT(AIROHA_GDM2_IDX));
airoha_fe_rmw(eth, REG_FE_WAN_PORT,
WAN1_EN_MASK | WAN1_MASK | WAN0_MASK,
FIELD_PREP(WAN0_MASK, src_port));
val = src_port & SP_CPORT_DFT_MASK;
airoha_fe_rmw(eth,
REG_SP_DFT_CPORT(src_port >> fls(SP_CPORT_DFT_MASK)),
SP_CPORT_MASK(val),
__field_prep(SP_CPORT_MASK(val), FE_PSE_PORT_CDM2));
for (i = 0; i < eth->soc->num_ppe; i++)
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(dev->nbq);
airoha_fe_rmw(eth, REG_SRC_PORT_FC_MAP6, mask,
__field_prep(mask, AIROHA_GDM2_IDX));
}
return 0;
}
static struct airoha_gdm_dev *
airoha_get_wan_gdm_dev(struct airoha_eth *eth)
{
int i;
for (i = 0; i < ARRAY_SIZE(eth->ports); i++) {
struct airoha_gdm_port *port = eth->ports[i];
int j;
if (!port)
continue;
for (j = 0; j < ARRAY_SIZE(port->devs); j++) {
struct airoha_gdm_dev *dev = port->devs[j];
if (dev && !airoha_is_lan_gdm_dev(dev))
return dev;
}
}
return NULL;
}
static void airoha_dev_set_qdma(struct airoha_gdm_dev *dev)
{
struct net_device *netdev = netdev_from_priv(dev);
struct airoha_eth *eth = dev->eth;
int ppe_id;
dev->qdma = ð->qdma[!airoha_is_lan_gdm_dev(dev)];
netdev->irq = dev->qdma->irq_banks[0].irq;
ppe_id = !airoha_is_lan_gdm_dev(dev) && airoha_ppe_is_enabled(eth, 1);
airoha_ppe_set_cpu_port(dev, ppe_id, airoha_get_fe_port(dev));
}
static int airoha_dev_init(struct net_device *netdev)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_gdm_port *port = dev->port;
switch (port->id) {
case AIROHA_GDM3_IDX:
case AIROHA_GDM4_IDX:
if (airoha_get_wan_gdm_dev(dev->eth))
break;
fallthrough;
case AIROHA_GDM2_IDX:
dev->flags |= AIROHA_PRIV_F_WAN;
break;
default:
break;
}
airoha_dev_set_qdma(dev);
airoha_set_macaddr(dev, netdev->dev_addr);
if (!airoha_is_lan_gdm_dev(dev) &&
(port->id == AIROHA_GDM3_IDX || port->id == AIROHA_GDM4_IDX)) {
int err;
err = airoha_enable_gdm2_loopback(dev);
if (err)
return err;
}
return 0;
}
static void airoha_dev_get_stats64(struct net_device *netdev,
struct rtnl_link_stats64 *storage)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
unsigned int start;
airoha_update_hw_stats(dev);
do {
start = u64_stats_fetch_begin(&dev->stats.syncp);
storage->rx_packets = dev->stats.rx_ok_pkts;
storage->tx_packets = dev->stats.tx_ok_pkts;
storage->rx_bytes = dev->stats.rx_ok_bytes;
storage->tx_bytes = dev->stats.tx_ok_bytes;
storage->multicast = dev->stats.rx_multicast;
storage->rx_errors = dev->stats.rx_errors;
storage->rx_dropped = dev->stats.rx_drops;
storage->tx_dropped = dev->stats.tx_drops;
storage->rx_crc_errors = dev->stats.rx_crc_error;
storage->rx_over_errors = dev->stats.rx_over_errors;
} while (u64_stats_fetch_retry(&dev->stats.syncp, start));
}
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;
WRITE_ONCE(netdev->mtu, mtu);
if (port->users)
airoha_dev_set_xmit_frame_size(netdev);
return 0;
}
static u16 airoha_dev_select_queue(struct net_device *netdev,
struct sk_buff *skb,
struct net_device *sb_dev)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_gdm_port *port = dev->port;
int queue, channel;
channel = netdev_uses_dsa(netdev) ? skb_get_queue_mapping(skb) : port->id;
channel = channel % AIROHA_NUM_QOS_CHANNELS;
queue = skb->priority % AIROHA_NUM_QOS_QUEUES;
queue = channel * AIROHA_NUM_QOS_QUEUES + queue;
return queue < netdev->num_tx_queues ? queue : 0;
}
static u32 airoha_get_dsa_tag(struct sk_buff *skb, struct net_device *dev)
{
#if IS_ENABLED(CONFIG_NET_DSA)
struct ethhdr *ehdr;
u8 xmit_tpid;
u16 tag;
if (!netdev_uses_dsa(dev))
return 0;
if (dev->dsa_ptr->tag_ops->proto != DSA_TAG_PROTO_MTK)
return 0;
if (skb_cow_head(skb, 0))
return 0;
ehdr = (struct ethhdr *)skb->data;
tag = be16_to_cpu(ehdr->h_proto);
xmit_tpid = tag >> 8;
switch (xmit_tpid) {
case MTK_HDR_XMIT_TAGGED_TPID_8100:
ehdr->h_proto = cpu_to_be16(ETH_P_8021Q);
tag &= ~(MTK_HDR_XMIT_TAGGED_TPID_8100 << 8);
break;
case MTK_HDR_XMIT_TAGGED_TPID_88A8:
ehdr->h_proto = cpu_to_be16(ETH_P_8021AD);
tag &= ~(MTK_HDR_XMIT_TAGGED_TPID_88A8 << 8);
break;
default:
memmove(skb->data + MTK_HDR_LEN, skb->data, 2 * ETH_ALEN);
__skb_pull(skb, MTK_HDR_LEN);
break;
}
return tag;
#else
return 0;
#endif
}
int airoha_get_fe_port(struct airoha_gdm_dev *dev)
{
struct airoha_gdm_port *port = dev->port;
struct airoha_eth *eth = dev->eth;
switch (eth->soc->version) {
case 0x7583:
return port->id == AIROHA_GDM3_IDX ? FE_PSE_PORT_GDM3
: port->id;
case 0x7581:
default:
return port->id == AIROHA_GDM4_IDX ? FE_PSE_PORT_GDM4
: port->id;
}
}
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_qdma *qdma = dev->qdma;
u32 nr_frags, tag, msg0, msg1, len;
struct airoha_queue_entry *e;
struct netdev_queue *txq;
struct airoha_queue *q;
LIST_HEAD(tx_list);
dma_addr_t addr;
int i = 0, qid;
u16 index;
u8 fport;
qid = airoha_qdma_get_txq(qdma, skb_get_queue_mapping(skb));
tag = airoha_get_dsa_tag(skb, netdev);
msg0 = FIELD_PREP(QDMA_ETH_TXMSG_CHAN_MASK,
qid / AIROHA_NUM_QOS_QUEUES) |
FIELD_PREP(QDMA_ETH_TXMSG_QUEUE_MASK,
qid % AIROHA_NUM_QOS_QUEUES) |
FIELD_PREP(QDMA_ETH_TXMSG_SP_TAG_MASK, tag);
if (skb->ip_summed == CHECKSUM_PARTIAL)
msg0 |= FIELD_PREP(QDMA_ETH_TXMSG_TCO_MASK, 1) |
FIELD_PREP(QDMA_ETH_TXMSG_UCO_MASK, 1) |
FIELD_PREP(QDMA_ETH_TXMSG_ICO_MASK, 1);
if (skb_is_gso(skb)) {
if (skb_cow_head(skb, 0))
goto error;
if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 |
SKB_GSO_TCPV6)) {
__be16 csum = cpu_to_be16(skb_shinfo(skb)->gso_size);
tcp_hdr(skb)->check = (__force __sum16)csum;
msg0 |= FIELD_PREP(QDMA_ETH_TXMSG_TSO_MASK, 1);
}
}
fport = airoha_get_fe_port(dev);
msg1 = FIELD_PREP(QDMA_ETH_TXMSG_NBOQ_MASK, dev->nbq) |
FIELD_PREP(QDMA_ETH_TXMSG_FPORT_MASK, fport) |
FIELD_PREP(QDMA_ETH_TXMSG_METER_MASK, 0x7f);
q = &qdma->q_tx[qid];
if (WARN_ON_ONCE(!q->ndesc))
goto error;
spin_lock_bh(&q->lock);
if (q->flushing)
goto error_unlock;
txq = skb_get_tx_queue(netdev, skb);
nr_frags = 1 + skb_shinfo(skb)->nr_frags;
if (q->queued + nr_frags >= q->ndesc) {
netif_tx_stop_queue(txq);
q->txq_stopped = true;
spin_unlock_bh(&q->lock);
return NETDEV_TX_BUSY;
}
e = list_first_entry(&q->tx_list, struct airoha_queue_entry,
list);
len = skb_headlen(skb);
addr = dma_map_single(netdev->dev.parent, skb->data, len,
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(netdev->dev.parent, addr)))
goto error_unlock;
e->dma_type = AIROHA_DMA_MAP_SINGLE;
index = e - q->entry;
while (true) {
struct airoha_qdma_desc *desc = &q->desc[index];
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
u32 val;
list_move_tail(&e->list, &tx_list);
e->skb = i == nr_frags - 1 ? skb : NULL;
e->dma_addr = addr;
e->dma_len = len;
e = list_first_entry(&q->tx_list, struct airoha_queue_entry,
list);
index = e - q->entry;
val = FIELD_PREP(QDMA_DESC_LEN_MASK, len);
if (i < nr_frags - 1)
val |= FIELD_PREP(QDMA_DESC_MORE_MASK, 1);
WRITE_ONCE(desc->ctrl, cpu_to_le32(val));
WRITE_ONCE(desc->addr, cpu_to_le32(addr));
val = FIELD_PREP(QDMA_DESC_NEXT_ID_MASK, index);
WRITE_ONCE(desc->data, cpu_to_le32(val));
WRITE_ONCE(desc->msg0, cpu_to_le32(msg0));
WRITE_ONCE(desc->msg1, cpu_to_le32(msg1));
WRITE_ONCE(desc->msg2, cpu_to_le32(0xffff));
if (++i == nr_frags)
break;
len = skb_frag_size(frag);
addr = skb_frag_dma_map(netdev->dev.parent, frag, 0, len,
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(netdev->dev.parent, addr)))
goto error_unmap;
e->dma_type = AIROHA_DMA_MAP_PAGE;
}
q->queued += i;
skb_tx_timestamp(skb);
netdev_tx_sent_queue(txq, skb->len);
if (q->ndesc - q->queued < q->free_thr) {
netif_tx_stop_queue(txq);
q->txq_stopped = true;
}
if (netif_xmit_stopped(txq) || !netdev_xmit_more())
airoha_qdma_rmw(qdma, REG_TX_CPU_IDX(qid),
TX_RING_CPU_IDX_MASK,
FIELD_PREP(TX_RING_CPU_IDX_MASK, index));
spin_unlock_bh(&q->lock);
return NETDEV_TX_OK;
error_unmap:
list_for_each_entry(e, &tx_list, list)
airoha_unmap_xmit_buf(dev->eth, e);
list_splice(&tx_list, &q->tx_list);
error_unlock:
spin_unlock_bh(&q->lock);
error:
dev_kfree_skb_any(skb);
netdev->stats.tx_dropped++;
return NETDEV_TX_OK;
}
static void airoha_ethtool_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *info)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
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));
}
static void airoha_ethtool_get_mac_stats(struct net_device *netdev,
struct ethtool_eth_mac_stats *stats)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
unsigned int start;
airoha_update_hw_stats(dev);
do {
start = u64_stats_fetch_begin(&dev->stats.syncp);
stats->FramesTransmittedOK = dev->stats.tx_ok_pkts;
stats->OctetsTransmittedOK = dev->stats.tx_ok_bytes;
stats->MulticastFramesXmittedOK = dev->stats.tx_multicast;
stats->BroadcastFramesXmittedOK = dev->stats.tx_broadcast;
stats->FramesReceivedOK = dev->stats.rx_ok_pkts;
stats->OctetsReceivedOK = dev->stats.rx_ok_bytes;
stats->BroadcastFramesReceivedOK = dev->stats.rx_broadcast;
} while (u64_stats_fetch_retry(&dev->stats.syncp, start));
}
static const struct ethtool_rmon_hist_range airoha_ethtool_rmon_ranges[] = {
{ 0, 64 },
{ 65, 127 },
{ 128, 255 },
{ 256, 511 },
{ 512, 1023 },
{ 1024, 1518 },
{ 1519, 10239 },
{},
};
static void
airoha_ethtool_get_rmon_stats(struct net_device *netdev,
struct ethtool_rmon_stats *stats,
const struct ethtool_rmon_hist_range **ranges)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_hw_stats *hw_stats = &dev->stats;
unsigned int start;
BUILD_BUG_ON(ARRAY_SIZE(airoha_ethtool_rmon_ranges) !=
ARRAY_SIZE(hw_stats->tx_len) + 1);
BUILD_BUG_ON(ARRAY_SIZE(airoha_ethtool_rmon_ranges) !=
ARRAY_SIZE(hw_stats->rx_len) + 1);
*ranges = airoha_ethtool_rmon_ranges;
airoha_update_hw_stats(dev);
do {
int i;
start = u64_stats_fetch_begin(&dev->stats.syncp);
stats->fragments = hw_stats->rx_fragment;
stats->jabbers = hw_stats->rx_jabber;
for (i = 0; i < ARRAY_SIZE(airoha_ethtool_rmon_ranges) - 1;
i++) {
stats->hist[i] = hw_stats->rx_len[i];
stats->hist_tx[i] = hw_stats->tx_len[i];
}
} while (u64_stats_fetch_retry(&dev->stats.syncp, start));
}
static int airoha_qdma_set_chan_tx_sched(struct net_device *netdev,
int channel, enum tx_sched_mode mode,
const u16 *weights, u8 n_weights)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
int i;
for (i = 0; i < AIROHA_NUM_QOS_QUEUES; i++)
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(dev->qdma, REG_TXWRR_WEIGHT_CFG,
TWRR_RW_CMD_MASK |
FIELD_PREP(TWRR_CHAN_IDX_MASK, channel) |
FIELD_PREP(TWRR_QUEUE_IDX_MASK, i) |
FIELD_PREP(TWRR_VALUE_MASK, weights[i]));
err = read_poll_timeout(airoha_qdma_rr, status,
status & TWRR_RW_CMD_DONE,
USEC_PER_MSEC, 10 * USEC_PER_MSEC,
true, dev->qdma, REG_TXWRR_WEIGHT_CFG);
if (err)
return err;
}
airoha_qdma_rmw(dev->qdma, REG_CHAN_QOS_MODE(channel >> 3),
CHAN_QOS_MODE_MASK(channel),
__field_prep(CHAN_QOS_MODE_MASK(channel), mode));
return 0;
}
static int airoha_qdma_set_tx_prio_sched(struct net_device *dev, int channel)
{
static const u16 w[AIROHA_NUM_QOS_QUEUES] = {};
return airoha_qdma_set_chan_tx_sched(dev, channel, TC_SCH_SP, w,
ARRAY_SIZE(w));
}
static int airoha_qdma_set_tx_ets_sched(struct net_device *dev, int channel,
struct tc_ets_qopt_offload *opt)
{
struct tc_ets_qopt_offload_replace_params *p = &opt->replace_params;
enum tx_sched_mode mode = TC_SCH_SP;
u16 w[AIROHA_NUM_QOS_QUEUES] = {};
int i, nstrict = 0;
if (p->bands > AIROHA_NUM_QOS_QUEUES)
return -EINVAL;
for (i = 0; i < p->bands; i++) {
if (!p->quanta[i])
nstrict++;
}
if (nstrict == AIROHA_NUM_QOS_QUEUES - 1)
return -EINVAL;
for (i = 0; i < nstrict; i++) {
if (p->priomap[p->bands - i - 1] != i)
return -EINVAL;
}
for (i = 0; i < p->bands - nstrict; i++) {
if (p->priomap[i] != nstrict + i)
return -EINVAL;
w[i] = p->weights[nstrict + i];
}
if (!nstrict)
mode = TC_SCH_WRR8;
else if (nstrict < AIROHA_NUM_QOS_QUEUES - 1)
mode = nstrict + 1;
return airoha_qdma_set_chan_tx_sched(dev, channel, mode, w,
ARRAY_SIZE(w));
}
static int airoha_qdma_get_tx_ets_stats(struct net_device *netdev, int channel,
struct tc_ets_qopt_offload *opt)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_qdma *qdma = dev->qdma;
u64 cpu_tx_packets = airoha_qdma_rr(qdma, REG_CNTR_VAL(channel << 1));
u64 fwd_tx_packets = airoha_qdma_rr(qdma,
REG_CNTR_VAL((channel << 1) + 1));
u64 tx_packets = (cpu_tx_packets - dev->cpu_tx_packets) +
(fwd_tx_packets - dev->fwd_tx_packets);
_bstats_update(opt->stats.bstats, 0, tx_packets);
dev->cpu_tx_packets = cpu_tx_packets;
dev->fwd_tx_packets = fwd_tx_packets;
return 0;
}
static int airoha_tc_setup_qdisc_ets(struct net_device *dev,
struct tc_ets_qopt_offload *opt)
{
int channel;
if (opt->parent == TC_H_ROOT)
return -EINVAL;
channel = TC_H_MIN(opt->parent) % AIROHA_NUM_QOS_CHANNELS;
switch (opt->command) {
case TC_ETS_REPLACE:
return airoha_qdma_set_tx_ets_sched(dev, channel, opt);
case TC_ETS_DESTROY:
return airoha_qdma_set_tx_prio_sched(dev, channel);
case TC_ETS_STATS:
return airoha_qdma_get_tx_ets_stats(dev, channel, opt);
default:
return -EOPNOTSUPP;
}
}
static int airoha_qdma_get_rl_param(struct airoha_qdma *qdma, int queue_id,
u32 addr, enum trtcm_param_type param,
u32 *val_low, u32 *val_high)
{
u32 idx = QDMA_METER_IDX(queue_id), group = QDMA_METER_GROUP(queue_id);
u32 val, config = FIELD_PREP(RATE_LIMIT_PARAM_TYPE_MASK, param) |
FIELD_PREP(RATE_LIMIT_METER_GROUP_MASK, group) |
FIELD_PREP(RATE_LIMIT_PARAM_INDEX_MASK, idx);
airoha_qdma_wr(qdma, REG_TRTCM_CFG_PARAM(addr), config);
if (read_poll_timeout(airoha_qdma_rr, val,
val & RATE_LIMIT_PARAM_RW_DONE_MASK,
USEC_PER_MSEC, 10 * USEC_PER_MSEC, true, qdma,
REG_TRTCM_CFG_PARAM(addr)))
return -ETIMEDOUT;
*val_low = airoha_qdma_rr(qdma, REG_TRTCM_DATA_LOW(addr));
if (val_high)
*val_high = airoha_qdma_rr(qdma, REG_TRTCM_DATA_HIGH(addr));
return 0;
}
static int airoha_qdma_set_rl_param(struct airoha_qdma *qdma, int queue_id,
u32 addr, enum trtcm_param_type param,
u32 val)
{
u32 idx = QDMA_METER_IDX(queue_id), group = QDMA_METER_GROUP(queue_id);
u32 config = RATE_LIMIT_PARAM_RW_MASK |
FIELD_PREP(RATE_LIMIT_PARAM_TYPE_MASK, param) |
FIELD_PREP(RATE_LIMIT_METER_GROUP_MASK, group) |
FIELD_PREP(RATE_LIMIT_PARAM_INDEX_MASK, idx);
airoha_qdma_wr(qdma, REG_TRTCM_DATA_LOW(addr), val);
airoha_qdma_wr(qdma, REG_TRTCM_CFG_PARAM(addr), config);
return read_poll_timeout(airoha_qdma_rr, val,
val & RATE_LIMIT_PARAM_RW_DONE_MASK,
USEC_PER_MSEC, 10 * USEC_PER_MSEC, true,
qdma, REG_TRTCM_CFG_PARAM(addr));
}
static int airoha_qdma_set_rl_config(struct airoha_qdma *qdma, int queue_id,
u32 addr, bool enable, u32 enable_mask)
{
u32 val;
int err;
err = airoha_qdma_get_rl_param(qdma, queue_id, addr, TRTCM_MISC_MODE,
&val, NULL);
if (err)
return err;
val = enable ? val | enable_mask : val & ~enable_mask;
return airoha_qdma_set_rl_param(qdma, queue_id, addr, TRTCM_MISC_MODE,
val);
}
static int airoha_qdma_set_rl_token_bucket(struct airoha_qdma *qdma,
int queue_id, u32 rate_val,
u32 bucket_size)
{
u32 val, config, tick, unit, rate, rate_frac;
int err;
err = airoha_qdma_get_rl_param(qdma, queue_id, REG_INGRESS_TRTCM_CFG,
TRTCM_MISC_MODE, &config, NULL);
if (err)
return err;
val = airoha_qdma_rr(qdma, REG_INGRESS_TRTCM_CFG);
tick = FIELD_GET(INGRESS_FAST_TICK_MASK, val);
if (config & TRTCM_TICK_SEL)
tick *= FIELD_GET(INGRESS_SLOW_TICK_RATIO_MASK, val);
if (!tick)
return -EINVAL;
unit = (config & TRTCM_PKT_MODE) ? 1000000 / tick : 8000 / tick;
if (!unit)
return -EINVAL;
rate = rate_val / unit;
rate_frac = rate_val % unit;
rate_frac = FIELD_PREP(TRTCM_TOKEN_RATE_MASK, rate_frac) / unit;
rate = FIELD_PREP(TRTCM_TOKEN_RATE_MASK, rate) |
FIELD_PREP(TRTCM_TOKEN_RATE_FRACTION_MASK, rate_frac);
err = airoha_qdma_set_rl_param(qdma, queue_id, REG_INGRESS_TRTCM_CFG,
TRTCM_TOKEN_RATE_MODE, rate);
if (err)
return err;
val = bucket_size;
if (!(config & TRTCM_PKT_MODE))
val = max_t(u32, val, MIN_TOKEN_SIZE);
val = min_t(u32, __fls(val), MAX_TOKEN_SIZE_OFFSET);
return airoha_qdma_set_rl_param(qdma, queue_id, REG_INGRESS_TRTCM_CFG,
TRTCM_BUCKETSIZE_SHIFT_MODE, val);
}
static int airoha_qdma_init_rl_config(struct airoha_qdma *qdma, int queue_id,
bool enable, enum trtcm_unit_type unit)
{
bool tick_sel = queue_id == 0 || queue_id == 2 || queue_id == 8;
enum trtcm_param mode = TRTCM_METER_MODE;
int err;
mode |= unit == TRTCM_PACKET_UNIT ? TRTCM_PKT_MODE : 0;
err = airoha_qdma_set_rl_config(qdma, queue_id, REG_INGRESS_TRTCM_CFG,
enable, mode);
if (err)
return err;
return airoha_qdma_set_rl_config(qdma, queue_id, REG_INGRESS_TRTCM_CFG,
tick_sel, TRTCM_TICK_SEL);
}
static int airoha_qdma_get_trtcm_param(struct airoha_qdma *qdma, int channel,
u32 addr, enum trtcm_param_type param,
enum trtcm_mode_type mode,
u32 *val_low, u32 *val_high)
{
u32 idx = QDMA_METER_IDX(channel), group = QDMA_METER_GROUP(channel);
u32 val, config = FIELD_PREP(TRTCM_PARAM_TYPE_MASK, param) |
FIELD_PREP(TRTCM_METER_GROUP_MASK, group) |
FIELD_PREP(TRTCM_PARAM_INDEX_MASK, idx) |
FIELD_PREP(TRTCM_PARAM_RATE_TYPE_MASK, mode);
airoha_qdma_wr(qdma, REG_TRTCM_CFG_PARAM(addr), config);
if (read_poll_timeout(airoha_qdma_rr, val,
val & TRTCM_PARAM_RW_DONE_MASK,
USEC_PER_MSEC, 10 * USEC_PER_MSEC, true,
qdma, REG_TRTCM_CFG_PARAM(addr)))
return -ETIMEDOUT;
*val_low = airoha_qdma_rr(qdma, REG_TRTCM_DATA_LOW(addr));
if (val_high)
*val_high = airoha_qdma_rr(qdma, REG_TRTCM_DATA_HIGH(addr));
return 0;
}
static int airoha_qdma_set_trtcm_param(struct airoha_qdma *qdma, int channel,
u32 addr, enum trtcm_param_type param,
enum trtcm_mode_type mode, u32 val)
{
u32 idx = QDMA_METER_IDX(channel), group = QDMA_METER_GROUP(channel);
u32 config = TRTCM_PARAM_RW_MASK |
FIELD_PREP(TRTCM_PARAM_TYPE_MASK, param) |
FIELD_PREP(TRTCM_METER_GROUP_MASK, group) |
FIELD_PREP(TRTCM_PARAM_INDEX_MASK, idx) |
FIELD_PREP(TRTCM_PARAM_RATE_TYPE_MASK, mode);
airoha_qdma_wr(qdma, REG_TRTCM_DATA_LOW(addr), val);
airoha_qdma_wr(qdma, REG_TRTCM_CFG_PARAM(addr), config);
return read_poll_timeout(airoha_qdma_rr, val,
val & TRTCM_PARAM_RW_DONE_MASK,
USEC_PER_MSEC, 10 * USEC_PER_MSEC, true,
qdma, REG_TRTCM_CFG_PARAM(addr));
}
static int airoha_qdma_set_trtcm_config(struct airoha_qdma *qdma, int channel,
u32 addr, enum trtcm_mode_type mode,
bool enable, u32 enable_mask)
{
u32 val;
if (airoha_qdma_get_trtcm_param(qdma, channel, addr, TRTCM_MISC_MODE,
mode, &val, NULL))
return -EINVAL;
val = enable ? val | enable_mask : val & ~enable_mask;
return airoha_qdma_set_trtcm_param(qdma, channel, addr, TRTCM_MISC_MODE,
mode, val);
}
static int airoha_qdma_set_trtcm_token_bucket(struct airoha_qdma *qdma,
int channel, u32 addr,
enum trtcm_mode_type mode,
u32 rate_val, u32 bucket_size)
{
u32 val, config, tick, unit, rate, rate_frac;
int err;
if (airoha_qdma_get_trtcm_param(qdma, channel, addr, TRTCM_MISC_MODE,
mode, &config, NULL))
return -EINVAL;
val = airoha_qdma_rr(qdma, addr);
tick = FIELD_GET(INGRESS_FAST_TICK_MASK, val);
if (config & TRTCM_TICK_SEL)
tick *= FIELD_GET(INGRESS_SLOW_TICK_RATIO_MASK, val);
if (!tick)
return -EINVAL;
unit = (config & TRTCM_PKT_MODE) ? 1000000 / tick : 8000 / tick;
if (!unit)
return -EINVAL;
rate = rate_val / unit;
rate_frac = rate_val % unit;
rate_frac = FIELD_PREP(TRTCM_TOKEN_RATE_MASK, rate_frac) / unit;
rate = FIELD_PREP(TRTCM_TOKEN_RATE_MASK, rate) |
FIELD_PREP(TRTCM_TOKEN_RATE_FRACTION_MASK, rate_frac);
err = airoha_qdma_set_trtcm_param(qdma, channel, addr,
TRTCM_TOKEN_RATE_MODE, mode, rate);
if (err)
return err;
val = max_t(u32, bucket_size, MIN_TOKEN_SIZE);
val = min_t(u32, __fls(val), MAX_TOKEN_SIZE_OFFSET);
return airoha_qdma_set_trtcm_param(qdma, channel, addr,
TRTCM_BUCKETSIZE_SHIFT_MODE,
mode, val);
}
static int airoha_qdma_set_tx_rate_limit(struct net_device *netdev,
int channel, u32 rate,
u32 bucket_size)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
int i, err;
for (i = 0; i <= TRTCM_PEAK_MODE; i++) {
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(dev->qdma, channel,
REG_EGRESS_TRTCM_CFG,
i, rate, bucket_size);
if (err)
return err;
}
return 0;
}
static int airoha_tc_htb_modify_queue(struct net_device *dev,
struct tc_htb_qopt_offload *opt)
{
u32 channel = TC_H_MIN(opt->classid) % AIROHA_NUM_QOS_CHANNELS;
u32 rate = div_u64(opt->rate, 1000) << 3;
int err;
if (opt->parent_classid != TC_HTB_CLASSID_ROOT) {
NL_SET_ERR_MSG_MOD(opt->extack, "invalid parent classid");
return -EINVAL;
}
err = airoha_qdma_set_tx_rate_limit(dev, channel, rate, opt->quantum);
if (err)
NL_SET_ERR_MSG_MOD(opt->extack,
"failed configuring htb offload");
return err;
}
static int airoha_tc_htb_alloc_leaf_queue(struct net_device *netdev,
struct tc_htb_qopt_offload *opt)
{
u32 channel = TC_H_MIN(opt->classid) % AIROHA_NUM_QOS_CHANNELS;
int err, num_tx_queues = AIROHA_NUM_TX_RING + channel + 1;
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_qdma *qdma = dev->qdma;
if (test_and_set_bit(channel, qdma->qos_channel_map)) {
NL_SET_ERR_MSG_MOD(opt->extack,
"qdma qos channel already in use");
return -EBUSY;
}
err = airoha_tc_htb_modify_queue(netdev, opt);
if (err)
goto error;
if (num_tx_queues > netdev->real_num_tx_queues) {
err = netif_set_real_num_tx_queues(netdev, num_tx_queues);
if (err) {
airoha_qdma_set_tx_rate_limit(netdev, channel, 0,
opt->quantum);
NL_SET_ERR_MSG_MOD(opt->extack,
"failed setting real_num_tx_queues");
goto error;
}
}
set_bit(channel, dev->qos_sq_bmap);
opt->qid = AIROHA_NUM_TX_RING + channel;
return 0;
error:
clear_bit(channel, qdma->qos_channel_map);
return err;
}
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 = dev->qdma;
int i;
for (i = 0; i < ARRAY_SIZE(qdma->q_rx); i++) {
int err;
if (!qdma->q_rx[i].ndesc)
continue;
err = airoha_qdma_init_rl_config(qdma, i, !!rate, unit_type);
if (err)
return err;
err = airoha_qdma_set_rl_token_bucket(qdma, i, rate,
bucket_size);
if (err)
return err;
}
return 0;
}
static int airoha_tc_matchall_act_validate(struct tc_cls_matchall_offload *f)
{
const struct flow_action *actions = &f->rule->action;
const struct flow_action_entry *act;
if (!flow_action_has_entries(actions)) {
NL_SET_ERR_MSG_MOD(f->common.extack,
"filter run with no actions");
return -EINVAL;
}
if (!flow_offload_has_one_action(actions)) {
NL_SET_ERR_MSG_MOD(f->common.extack,
"only once action per filter is supported");
return -EOPNOTSUPP;
}
act = &actions->entries[0];
if (act->id != FLOW_ACTION_POLICE) {
NL_SET_ERR_MSG_MOD(f->common.extack, "unsupported action");
return -EOPNOTSUPP;
}
if (act->police.exceed.act_id != FLOW_ACTION_DROP) {
NL_SET_ERR_MSG_MOD(f->common.extack,
"invalid exceed action id");
return -EOPNOTSUPP;
}
if (act->police.notexceed.act_id != FLOW_ACTION_ACCEPT) {
NL_SET_ERR_MSG_MOD(f->common.extack,
"invalid notexceed action id");
return -EOPNOTSUPP;
}
if (act->police.notexceed.act_id == FLOW_ACTION_ACCEPT &&
!flow_action_is_last_entry(actions, act)) {
NL_SET_ERR_MSG_MOD(f->common.extack,
"action accept must be last");
return -EOPNOTSUPP;
}
if (act->police.peakrate_bytes_ps || act->police.avrate ||
act->police.overhead || act->police.mtu) {
NL_SET_ERR_MSG_MOD(f->common.extack,
"peakrate/avrate/overhead/mtu unsupported");
return -EOPNOTSUPP;
}
return 0;
}
static int airoha_dev_tc_matchall(struct net_device *netdev,
struct tc_cls_matchall_offload *f)
{
enum trtcm_unit_type unit_type = TRTCM_BYTE_UNIT;
struct airoha_gdm_dev *dev = netdev_priv(netdev);
u32 rate = 0, bucket_size = 0;
switch (f->command) {
case TC_CLSMATCHALL_REPLACE: {
const struct flow_action_entry *act;
int err;
err = airoha_tc_matchall_act_validate(f);
if (err)
return err;
act = &f->rule->action.entries[0];
if (act->police.rate_pkt_ps) {
rate = act->police.rate_pkt_ps;
bucket_size = act->police.burst_pkt;
unit_type = TRTCM_PACKET_UNIT;
} else {
rate = div_u64(act->police.rate_bytes_ps, 1000);
rate = rate << 3;
bucket_size = act->police.burst;
}
fallthrough;
}
case TC_CLSMATCHALL_DESTROY:
return airoha_qdma_set_rx_meter(dev, rate, bucket_size,
unit_type);
default:
return -EOPNOTSUPP;
}
}
static int airoha_dev_setup_tc_block_cb(enum tc_setup_type type,
void *type_data, void *cb_priv)
{
struct net_device *netdev = cb_priv;
struct airoha_gdm_dev *dev = netdev_priv(netdev);
struct airoha_eth *eth = dev->eth;
if (!tc_can_offload(netdev))
return -EOPNOTSUPP;
switch (type) {
case TC_SETUP_CLSFLOWER:
return airoha_ppe_setup_tc_block_cb(ð->ppe->dev, type_data);
case TC_SETUP_CLSMATCHALL:
return airoha_dev_tc_matchall(netdev, type_data);
default:
return -EOPNOTSUPP;
}
}
static int airoha_dev_setup_tc_block(struct net_device *dev,
struct flow_block_offload *f)
{
flow_setup_cb_t *cb = airoha_dev_setup_tc_block_cb;
static LIST_HEAD(block_cb_list);
struct flow_block_cb *block_cb;
if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
return -EOPNOTSUPP;
f->driver_block_list = &block_cb_list;
switch (f->command) {
case FLOW_BLOCK_BIND:
block_cb = flow_block_cb_lookup(f->block, cb, dev);
if (block_cb) {
flow_block_cb_incref(block_cb);
return 0;
}
block_cb = flow_block_cb_alloc(cb, dev, dev, NULL);
if (IS_ERR(block_cb))
return PTR_ERR(block_cb);
flow_block_cb_incref(block_cb);
flow_block_cb_add(block_cb, f);
list_add_tail(&block_cb->driver_list, &block_cb_list);
return 0;
case FLOW_BLOCK_UNBIND:
block_cb = flow_block_cb_lookup(f->block, cb, dev);
if (!block_cb)
return -ENOENT;
if (!flow_block_cb_decref(block_cb)) {
flow_block_cb_remove(block_cb, f);
list_del(&block_cb->driver_list);
}
return 0;
default:
return -EOPNOTSUPP;
}
}
static void airoha_tc_remove_htb_queue(struct net_device *netdev, int queue)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
int num_tx_queues = AIROHA_NUM_TX_RING;
struct airoha_qdma *qdma = dev->qdma;
airoha_qdma_set_tx_rate_limit(netdev, queue, 0, 0);
clear_bit(queue, qdma->qos_channel_map);
clear_bit(queue, dev->qos_sq_bmap);
if (!bitmap_empty(dev->qos_sq_bmap, AIROHA_NUM_QOS_CHANNELS))
num_tx_queues += find_last_bit(dev->qos_sq_bmap,
AIROHA_NUM_QOS_CHANNELS) + 1;
netif_set_real_num_tx_queues(netdev, num_tx_queues);
}
static int airoha_tc_htb_delete_leaf_queue(struct net_device *netdev,
struct tc_htb_qopt_offload *opt)
{
u32 channel = TC_H_MIN(opt->classid) % AIROHA_NUM_QOS_CHANNELS;
struct airoha_gdm_dev *dev = netdev_priv(netdev);
if (!test_bit(channel, dev->qos_sq_bmap)) {
NL_SET_ERR_MSG_MOD(opt->extack, "invalid queue id");
return -EINVAL;
}
airoha_tc_remove_htb_queue(netdev, channel);
return 0;
}
static int airoha_tc_htb_destroy(struct net_device *netdev)
{
struct airoha_gdm_dev *dev = netdev_priv(netdev);
int q;
for_each_set_bit(q, dev->qos_sq_bmap, AIROHA_NUM_QOS_CHANNELS)
airoha_tc_remove_htb_queue(netdev, q);
return 0;
}
static int airoha_tc_get_htb_get_leaf_queue(struct net_device *netdev,
struct tc_htb_qopt_offload *opt)
{
u32 channel = TC_H_MIN(opt->classid) % AIROHA_NUM_QOS_CHANNELS;
struct airoha_gdm_dev *dev = netdev_priv(netdev);
if (!test_bit(channel, dev->qos_sq_bmap)) {
NL_SET_ERR_MSG_MOD(opt->extack, "invalid queue id");
return -EINVAL;
}
opt->qid = AIROHA_NUM_TX_RING + channel;
return 0;
}
static int airoha_tc_setup_qdisc_htb(struct net_device *dev,
struct tc_htb_qopt_offload *opt)
{
switch (opt->command) {
case TC_HTB_CREATE:
break;
case TC_HTB_DESTROY:
return airoha_tc_htb_destroy(dev);
case TC_HTB_NODE_MODIFY:
return airoha_tc_htb_modify_queue(dev, opt);
case TC_HTB_LEAF_ALLOC_QUEUE:
return airoha_tc_htb_alloc_leaf_queue(dev, opt);
case TC_HTB_LEAF_DEL:
case TC_HTB_LEAF_DEL_LAST:
case TC_HTB_LEAF_DEL_LAST_FORCE:
return airoha_tc_htb_delete_leaf_queue(dev, opt);
case TC_HTB_LEAF_QUERY_QUEUE:
return airoha_tc_get_htb_get_leaf_queue(dev, opt);
default:
return -EOPNOTSUPP;
}
return 0;
}
static int airoha_dev_tc_setup(struct net_device *dev,
enum tc_setup_type type, void *type_data)
{
switch (type) {
case TC_SETUP_QDISC_ETS:
return airoha_tc_setup_qdisc_ets(dev, type_data);
case TC_SETUP_QDISC_HTB:
return airoha_tc_setup_qdisc_htb(dev, type_data);
case TC_SETUP_BLOCK:
case TC_SETUP_FT:
return airoha_dev_setup_tc_block(dev, type_data);
default:
return -EOPNOTSUPP;
}
}
static const struct net_device_ops airoha_netdev_ops = {
.ndo_init = airoha_dev_init,
.ndo_open = airoha_dev_open,
.ndo_stop = airoha_dev_stop,
.ndo_change_mtu = airoha_dev_change_mtu,
.ndo_select_queue = airoha_dev_select_queue,
.ndo_start_xmit = airoha_dev_xmit,
.ndo_get_stats64 = airoha_dev_get_stats64,
.ndo_set_mac_address = airoha_dev_set_macaddr,
.ndo_setup_tc = airoha_dev_tc_setup,
};
static const struct ethtool_ops airoha_ethtool_ops = {
.get_drvinfo = airoha_ethtool_get_drvinfo,
.get_eth_mac_stats = airoha_ethtool_get_mac_stats,
.get_rmon_stats = airoha_ethtool_get_rmon_stats,
.get_link_ksettings = phy_ethtool_get_link_ksettings,
.get_link = ethtool_op_get_link,
};
static int airoha_metadata_dst_alloc(struct airoha_gdm_port *port)
{
int i;
for (i = 0; i < ARRAY_SIZE(port->dsa_meta); i++) {
struct metadata_dst *md_dst;
md_dst = metadata_dst_alloc(0, METADATA_HW_PORT_MUX,
GFP_KERNEL);
if (!md_dst)
return -ENOMEM;
md_dst->u.port_info.port_id = i;
port->dsa_meta[i] = md_dst;
}
return 0;
}
static void airoha_metadata_dst_free(struct airoha_gdm_port *port)
{
int i;
for (i = 0; i < ARRAY_SIZE(port->dsa_meta); i++) {
if (!port->dsa_meta[i])
continue;
dst_release(&port->dsa_meta[i]->dst);
}
}
bool airoha_is_valid_gdm_dev(struct airoha_eth *eth,
struct airoha_gdm_dev *dev)
{
int i;
for (i = 0; i < ARRAY_SIZE(eth->ports); i++) {
struct airoha_gdm_port *port = eth->ports[i];
int j;
if (!port)
continue;
for (j = 0; j < ARRAY_SIZE(port->devs); j++) {
if (port->devs[j] == dev)
return true;
}
}
return false;
}
static int airoha_alloc_gdm_device(struct airoha_eth *eth,
struct airoha_gdm_port *port,
int nbq, struct device_node *np)
{
struct net_device *netdev;
struct airoha_gdm_dev *dev;
u8 index;
int err;
netdev = devm_alloc_etherdev_mqs(eth->dev, sizeof(*dev),
AIROHA_NUM_NETDEV_TX_RINGS,
AIROHA_NUM_RX_RING);
if (!netdev) {
dev_err(eth->dev, "alloc_etherdev failed\n");
return -ENOMEM;
}
netdev->netdev_ops = &airoha_netdev_ops;
netdev->ethtool_ops = &airoha_ethtool_ops;
netdev->max_mtu = AIROHA_MAX_MTU;
netdev->watchdog_timeo = 5 * HZ;
netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM | NETIF_F_TSO6 |
NETIF_F_IPV6_CSUM | NETIF_F_SG | NETIF_F_TSO |
NETIF_F_HW_TC;
netdev->features |= netdev->hw_features;
netdev->vlan_features = netdev->hw_features;
SET_NETDEV_DEV(netdev, eth->dev);
err = netif_set_real_num_tx_queues(netdev, AIROHA_NUM_TX_RING);
if (err)
return err;
err = of_get_ethdev_address(np, netdev);
if (err) {
if (err == -EPROBE_DEFER)
return err;
eth_hw_addr_random(netdev);
dev_info(eth->dev, "generated random MAC address %pM\n",
netdev->dev_addr);
}
index = nbq;
if (index && airoha_is_7581(eth) && port->id == AIROHA_GDM3_IDX)
index -= 4;
if (index >= ARRAY_SIZE(port->devs) || port->devs[index]) {
dev_err(eth->dev, "invalid nbq id: %d\n", nbq);
return -EINVAL;
}
netdev->dev.of_node = of_node_get(np);
dev = netdev_priv(netdev);
u64_stats_init(&dev->stats.syncp);
dev->port = port;
dev->eth = eth;
dev->nbq = nbq;
port->devs[index] = dev;
return 0;
}
static int airoha_alloc_gdm_port(struct airoha_eth *eth,
struct device_node *np)
{
const __be32 *id_ptr = of_get_property(np, "reg", NULL);
struct airoha_gdm_port *port;
struct device_node *node;
int err, nbq, p, d = 0;
u32 id;
if (!id_ptr) {
dev_err(eth->dev, "missing gdm port id\n");
return -EINVAL;
}
id = be32_to_cpup(id_ptr);
p = id - 1;
if (!id || id > ARRAY_SIZE(eth->ports)) {
dev_err(eth->dev, "invalid gdm port id: %d\n", id);
return -EINVAL;
}
if (eth->ports[p]) {
dev_err(eth->dev, "duplicate gdm port id: %d\n", id);
return -EINVAL;
}
port = devm_kzalloc(eth->dev, sizeof(*port), GFP_KERNEL);
if (!port)
return -ENOMEM;
port->id = id;
spin_lock_init(&port->stats_lock);
eth->ports[p] = port;
err = airoha_metadata_dst_alloc(port);
if (err)
return err;
nbq = id == AIROHA_GDM3_IDX && airoha_is_7581(eth) ? 4 : 0;
for_each_child_of_node(np, node) {
const __be32 *nbq_ptr;
if (!of_device_is_compatible(node, "airoha,eth-port"))
continue;
d++;
if (!of_device_is_available(node))
continue;
nbq_ptr = of_get_property(node, "reg", NULL);
if (!nbq_ptr) {
dev_err(eth->dev, "missing nbq id\n");
of_node_put(node);
return -EINVAL;
}
nbq = be32_to_cpup(nbq_ptr);
err = eth->soc->ops.get_sport(port, nbq);
if (err < 0) {
of_node_put(node);
return err;
}
err = airoha_alloc_gdm_device(eth, port, nbq, node);
if (err) {
of_node_put(node);
return err;
}
}
return !d ? airoha_alloc_gdm_device(eth, port, nbq, np) : 0;
}
static int airoha_register_gdm_devices(struct airoha_eth *eth)
{
int i;
for (i = 0; i < ARRAY_SIZE(eth->ports); i++) {
struct airoha_gdm_port *port = eth->ports[i];
int j;
if (!port)
continue;
for (j = 0; j < ARRAY_SIZE(port->devs); j++) {
struct airoha_gdm_dev *dev = port->devs[j];
int err;
if (!dev)
continue;
err = register_netdev(netdev_from_priv(dev));
if (err)
return err;
}
}
set_bit(DEV_STATE_REGISTERED, ð->state);
return 0;
}
static int airoha_probe(struct platform_device *pdev)
{
struct reset_control_bulk_data *xsi_rsts;
struct device_node *np;
struct airoha_eth *eth;
int i, err;
eth = devm_kzalloc(&pdev->dev, sizeof(*eth), GFP_KERNEL);
if (!eth)
return -ENOMEM;
eth->soc = of_device_get_match_data(&pdev->dev);
if (!eth->soc)
return -EINVAL;
eth->dev = &pdev->dev;
err = dma_set_mask_and_coherent(eth->dev, DMA_BIT_MASK(32));
if (err) {
dev_err(eth->dev, "failed configuring DMA mask\n");
return err;
}
eth->fe_regs = devm_platform_ioremap_resource_byname(pdev, "fe");
if (IS_ERR(eth->fe_regs))
return dev_err_probe(eth->dev, PTR_ERR(eth->fe_regs),
"failed to iomap fe regs\n");
eth->rsts[0].id = "fe";
eth->rsts[1].id = "pdma";
eth->rsts[2].id = "qdma";
err = devm_reset_control_bulk_get_exclusive(eth->dev,
ARRAY_SIZE(eth->rsts),
eth->rsts);
if (err) {
dev_err(eth->dev, "failed to get bulk reset lines\n");
return err;
}
xsi_rsts = devm_kcalloc(eth->dev,
eth->soc->num_xsi_rsts, sizeof(*xsi_rsts),
GFP_KERNEL);
if (!xsi_rsts)
return -ENOMEM;
eth->xsi_rsts = xsi_rsts;
for (i = 0; i < eth->soc->num_xsi_rsts; i++)
eth->xsi_rsts[i].id = eth->soc->xsi_rsts_names[i];
err = devm_reset_control_bulk_get_exclusive(eth->dev,
eth->soc->num_xsi_rsts,
eth->xsi_rsts);
if (err) {
dev_err(eth->dev, "failed to get bulk xsi reset lines\n");
return err;
}
eth->napi_dev = alloc_netdev_dummy(0);
if (!eth->napi_dev)
return -ENOMEM;
eth->napi_dev->threaded = true;
strscpy(eth->napi_dev->name, "qdma_eth", sizeof(eth->napi_dev->name));
platform_set_drvdata(pdev, eth);
err = airoha_hw_init(pdev, eth);
if (err)
goto error_netdev_free;
for (i = 0; i < ARRAY_SIZE(eth->qdma); i++) {
airoha_qdma_start_napi(ð->qdma[i]);
airoha_qdma_set(ð->qdma[i], REG_QDMA_GLOBAL_CFG,
GLOBAL_CFG_TX_DMA_EN_MASK |
GLOBAL_CFG_RX_DMA_EN_MASK);
}
for_each_child_of_node(pdev->dev.of_node, np) {
if (!of_device_is_compatible(np, "airoha,eth-mac"))
continue;
if (!of_device_is_available(np))
continue;
err = airoha_alloc_gdm_port(eth, np);
if (err) {
of_node_put(np);
goto error_napi_stop;
}
}
err = airoha_register_gdm_devices(eth);
if (err)
goto error_napi_stop;
return 0;
error_napi_stop:
for (i = 0; i < ARRAY_SIZE(eth->qdma); i++) {
airoha_qdma_stop_napi(ð->qdma[i]);
airoha_qdma_tx_cleanup(ð->qdma[i]);
}
for (i = 0; i < ARRAY_SIZE(eth->ports); i++) {
struct airoha_gdm_port *port = eth->ports[i];
int j;
if (!port)
continue;
for (j = 0; j < ARRAY_SIZE(port->devs); j++) {
struct airoha_gdm_dev *dev = port->devs[j];
struct net_device *netdev;
if (!dev)
continue;
netdev = netdev_from_priv(dev);
if (netdev->reg_state == NETREG_REGISTERED)
unregister_netdev(netdev);
of_node_put(netdev->dev.of_node);
}
airoha_metadata_dst_free(port);
}
airoha_hw_cleanup(eth);
error_netdev_free:
free_netdev(eth->napi_dev);
platform_set_drvdata(pdev, NULL);
return err;
}
static void airoha_remove(struct platform_device *pdev)
{
struct airoha_eth *eth = platform_get_drvdata(pdev);
int i;
for (i = 0; i < ARRAY_SIZE(eth->qdma); i++) {
airoha_qdma_stop_napi(ð->qdma[i]);
airoha_qdma_tx_cleanup(ð->qdma[i]);
}
for (i = 0; i < ARRAY_SIZE(eth->ports); i++) {
struct airoha_gdm_port *port = eth->ports[i];
int j;
if (!port)
continue;
for (j = 0; j < ARRAY_SIZE(port->devs); j++) {
struct airoha_gdm_dev *dev = port->devs[j];
struct net_device *netdev;
if (!dev)
continue;
netdev = netdev_from_priv(dev);
unregister_netdev(netdev);
of_node_put(netdev->dev.of_node);
}
airoha_metadata_dst_free(port);
}
airoha_hw_cleanup(eth);
free_netdev(eth->napi_dev);
platform_set_drvdata(pdev, NULL);
}
static const char * const en7581_xsi_rsts_names[] = {
"xsi-mac",
"hsi0-mac",
"hsi1-mac",
"hsi-mac",
"xfp-mac",
};
static int airoha_en7581_get_sport(struct airoha_gdm_port *port, int nbq)
{
switch (port->id) {
case AIROHA_GDM3_IDX:
if (nbq == 4)
return HSGMII_LAN_7581_PCIE0_SRCPORT;
if (nbq == 5)
return HSGMII_LAN_7581_PCIE1_SRCPORT;
break;
case AIROHA_GDM4_IDX:
if (!nbq)
return HSGMII_LAN_7581_ETH_SRCPORT;
if (nbq == 1)
return HSGMII_LAN_7581_USB_SRCPORT;
break;
default:
break;
}
return -EINVAL;
}
static u32 airoha_en7581_get_vip_port(struct airoha_gdm_port *port, int nbq)
{
switch (port->id) {
case AIROHA_GDM3_IDX:
if (nbq == 4)
return XSI_PCIE0_VIP_PORT_MASK;
if (nbq == 5)
return XSI_PCIE1_VIP_PORT_MASK;
break;
case AIROHA_GDM4_IDX:
if (!nbq)
return XSI_ETH_VIP_PORT_MASK;
if (nbq == 1)
return XSI_USB_VIP_PORT_MASK;
break;
default:
break;
}
return 0;
}
static int airoha_en7581_get_dev_from_sport(struct airoha_qdma_desc *desc,
u16 *port, u16 *dev)
{
u32 sport = FIELD_GET(QDMA_ETH_RXMSG_SPORT_MASK,
le32_to_cpu(READ_ONCE(desc->msg1)));
*dev = 0;
switch (sport) {
case 0x10 ... 0x14:
*port = 0;
break;
case 0x2 ... 0x4:
*port = sport - 1;
break;
case HSGMII_LAN_7581_PCIE1_SRCPORT:
*dev = 1;
fallthrough;
case HSGMII_LAN_7581_PCIE0_SRCPORT:
*port = 2;
break;
case HSGMII_LAN_7581_USB_SRCPORT:
*dev = 1;
fallthrough;
case HSGMII_LAN_7581_ETH_SRCPORT:
*port = 3;
break;
default:
return -EINVAL;
}
return 0;
}
static const char * const an7583_xsi_rsts_names[] = {
"xsi-mac",
"hsi0-mac",
"hsi1-mac",
"xfp-mac",
};
static int airoha_an7583_get_sport(struct airoha_gdm_port *port, int nbq)
{
switch (port->id) {
case AIROHA_GDM3_IDX:
if (!nbq)
return HSGMII_LAN_7583_ETH_SRCPORT;
break;
case AIROHA_GDM4_IDX:
if (!nbq)
return HSGMII_LAN_7583_PCIE_SRCPORT;
if (nbq == 1)
return HSGMII_LAN_7583_USB_SRCPORT;
break;
default:
break;
}
return -EINVAL;
}
static u32 airoha_an7583_get_vip_port(struct airoha_gdm_port *port, int nbq)
{
switch (port->id) {
case AIROHA_GDM3_IDX:
if (!nbq)
return XSI_ETH_VIP_PORT_MASK;
break;
case AIROHA_GDM4_IDX:
if (!nbq)
return XSI_PCIE0_VIP_PORT_MASK;
if (nbq == 1)
return XSI_USB_VIP_PORT_MASK;
break;
default:
break;
}
return 0;
}
static int airoha_an7583_get_dev_from_sport(struct airoha_qdma_desc *desc,
u16 *port, u16 *dev)
{
u32 sport = FIELD_GET(QDMA_ETH_RXMSG_SPORT_MASK,
le32_to_cpu(READ_ONCE(desc->msg1)));
*dev = 0;
switch (sport) {
case 0x10 ... 0x14:
*port = 0;
break;
case 0x2 ... 0x4:
*port = sport - 1;
break;
case HSGMII_LAN_7583_ETH_SRCPORT:
*port = 2;
break;
case HSGMII_LAN_7583_USB_SRCPORT:
*dev = 1;
fallthrough;
case HSGMII_LAN_7583_PCIE_SRCPORT:
*port = 3;
break;
default:
return -EINVAL;
}
return 0;
}
static const struct airoha_eth_soc_data en7581_soc_data = {
.version = 0x7581,
.xsi_rsts_names = en7581_xsi_rsts_names,
.num_xsi_rsts = ARRAY_SIZE(en7581_xsi_rsts_names),
.num_ppe = 2,
.ops = {
.get_sport = airoha_en7581_get_sport,
.get_vip_port = airoha_en7581_get_vip_port,
.get_dev_from_sport = airoha_en7581_get_dev_from_sport,
},
};
static const struct airoha_eth_soc_data an7583_soc_data = {
.version = 0x7583,
.xsi_rsts_names = an7583_xsi_rsts_names,
.num_xsi_rsts = ARRAY_SIZE(an7583_xsi_rsts_names),
.num_ppe = 1,
.ops = {
.get_sport = airoha_an7583_get_sport,
.get_vip_port = airoha_an7583_get_vip_port,
.get_dev_from_sport = airoha_an7583_get_dev_from_sport,
},
};
static const struct of_device_id of_airoha_match[] = {
{ .compatible = "airoha,en7581-eth", .data = &en7581_soc_data },
{ .compatible = "airoha,an7583-eth", .data = &an7583_soc_data },
{ }
};
MODULE_DEVICE_TABLE(of, of_airoha_match);
static struct platform_driver airoha_driver = {
.probe = airoha_probe,
.remove = airoha_remove,
.driver = {
.name = KBUILD_MODNAME,
.of_match_table = of_airoha_match,
},
};
module_platform_driver(airoha_driver);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
MODULE_DESCRIPTION("Ethernet driver for Airoha SoC");
