diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2025-03-26 21:48:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-03-26 21:48:21 -0700 |
| commit | 1a9239bb4253f9076b5b4b2a1a4e8d7defd77a95 (patch) | |
| tree | 286dda5e84757594218e684b94b01b3a3cac15a2 /drivers/net/dsa/mt7530.c | |
| parent | e61f33273ca755b3e2ebee4520a76097199dc7a8 (diff) | |
| parent | 023b1e9d265ca0662111a9df23d22b4632717a8a (diff) | |
| download | lwn-1a9239bb4253f9076b5b4b2a1a4e8d7defd77a95.tar.gz lwn-1a9239bb4253f9076b5b4b2a1a4e8d7defd77a95.zip | |
Merge tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Continue Netlink conversions to per-namespace RTNL lock
(IPv4 routing, routing rules, routing next hops, ARP ioctls)
- Continue extending the use of netdev instance locks. As a driver
opt-in protect queue operations and (in due course) ethtool
operations with the instance lock and not RTNL lock.
- Support collecting TCP timestamps (data submitted, sent, acked) in
BPF, allowing for transparent (to the application) and lower
overhead tracking of TCP RPC performance.
- Tweak existing networking Rx zero-copy infra to support zero-copy
Rx via io_uring.
- Optimize MPTCP performance in single subflow mode by 29%.
- Enable GRO on packets which went thru XDP CPU redirect (were queued
for processing on a different CPU). Improving TCP stream
performance up to 2x.
- Improve performance of contended connect() by 200% by searching for
an available 4-tuple under RCU rather than a spin lock. Bring an
additional 229% improvement by tweaking hash distribution.
- Avoid unconditionally touching sk_tsflags on RX, improving
performance under UDP flood by as much as 10%.
- Avoid skb_clone() dance in ping_rcv() to improve performance under
ping flood.
- Avoid FIB lookup in netfilter if socket is available, 20% perf win.
- Rework network device creation (in-kernel) API to more clearly
identify network namespaces and their roles. There are up to 4
namespace roles but we used to have just 2 netns pointer arguments,
interpreted differently based on context.
- Use sysfs_break_active_protection() instead of trylock to avoid
deadlocks between unregistering objects and sysfs access.
- Add a new sysctl and sockopt for capping max retransmit timeout in
TCP.
- Support masking port and DSCP in routing rule matches.
- Support dumping IPv4 multicast addresses with RTM_GETMULTICAST.
- Support specifying at what time packet should be sent on AF_XDP
sockets.
- Expose TCP ULP diagnostic info (for TLS and MPTCP) to non-admin
users.
- Add Netlink YAML spec for WiFi (nl80211) and conntrack.
- Introduce EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() for symbols
which only need to be exported when IPv6 support is built as a
module.
- Age FDB entries based on Rx not Tx traffic in VxLAN, similar to
normal bridging.
- Allow users to specify source port range for GENEVE tunnels.
- netconsole: allow attaching kernel release, CPU ID and task name to
messages as metadata
Driver API:
- Continue rework / fixing of Energy Efficient Ethernet (EEE) across
the SW layers. Delegate the responsibilities to phylink where
possible. Improve its handling in phylib.
- Support symmetric OR-XOR RSS hashing algorithm.
- Support tracking and preserving IRQ affinity by NAPI itself.
- Support loopback mode speed selection for interface selftests.
Device drivers:
- Remove the IBM LCS driver for s390
- Remove the sb1000 cable modem driver
- Add support for SFP module access over SMBus
- Add MCTP transport driver for MCTP-over-USB
- Enable XDP metadata support in multiple drivers
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- add PCIe TLP Processing Hints (TPH) support for new AMD
platforms
- support dumping RoCE queue state for debug
- opt into instance locking
- Intel (100G, ice, idpf):
- ice: rework MSI-X IRQ management and distribution
- ice: support for E830 devices
- iavf: add support for Rx timestamping
- iavf: opt into instance locking
- nVidia/Mellanox:
- mlx4: use page pool memory allocator for Rx
- mlx5: support for one PTP device per hardware clock
- mlx5: support for 200Gbps per-lane link modes
- mlx5: move IPSec policy check after decryption
- AMD/Solarflare:
- support FW flashing via devlink
- Cisco (enic):
- use page pool memory allocator for Rx
- enable 32, 64 byte CQEs
- get max rx/tx ring size from the device
- Meta (fbnic):
- support flow steering and RSS configuration
- report queue stats
- support TCP segmentation
- support IRQ coalescing
- support ring size configuration
- Marvell/Cavium:
- support AF_XDP
- Wangxun:
- support for PTP clock and timestamping
- Huawei (hibmcge):
- checksum offload
- add more statistics
- Ethernet virtual:
- VirtIO net:
- aggressively suppress Tx completions, improve perf by 96%
with 1 CPU and 55% with 2 CPUs
- expose NAPI to IRQ mapping and persist NAPI settings
- Google (gve):
- support XDP in DQO RDA Queue Format
- opt into instance locking
- Microsoft vNIC:
- support BIG TCP
- Ethernet NICs consumer, and embedded:
- Synopsys (stmmac):
- cleanup Tx and Tx clock setting and other link-focused
cleanups
- enable SGMII and 2500BASEX mode switching for Intel platforms
- support Sophgo SG2044
- Broadcom switches (b53):
- support for BCM53101
- TI:
- iep: add perout configuration support
- icssg: support XDP
- Cadence (macb):
- implement BQL
- Xilinx (axinet):
- support dynamic IRQ moderation and changing coalescing at
runtime
- implement BQL
- report standard stats
- MediaTek:
- support phylink managed EEE
- Intel:
- igc: don't restart the interface on every XDP program change
- RealTek (r8169):
- support reading registers of internal PHYs directly
- increase max jumbo packet size on RTL8125/RTL8126
- Airoha:
- support for RISC-V NPU packet processing unit
- enable scatter-gather and support MTU up to 9kB
- Tehuti (tn40xx):
- support cards with TN4010 MAC and an Aquantia AQR105 PHY
- Ethernet PHYs:
- support for TJA1102S, TJA1121
- dp83tg720: add randomized polling intervals for link detection
- dp83822: support changing the transmit amplitude voltage
- support for LEDs on 88q2xxx
- CAN:
- canxl: support Remote Request Substitution bit access
- flexcan: add S32G2/S32G3 SoC
- WiFi:
- remove cooked monitor support
- strict mode for better AP testing
- basic EPCS support
- OMI RX bandwidth reduction support
- batman-adv: add support for jumbo frames
- WiFi drivers:
- RealTek (rtw88):
- support RTL8814AE and RTL8814AU
- RealTek (rtw89):
- switch using wiphy_lock and wiphy_work
- add BB context to manipulate two PHY as preparation of MLO
- improve BT-coexistence mechanism to play A2DP smoothly
- Intel (iwlwifi):
- add new iwlmld sub-driver for latest HW/FW combinations
- MediaTek (mt76):
- preparation for mt7996 Multi-Link Operation (MLO) support
- Qualcomm/Atheros (ath12k):
- continued work on MLO
- Silabs (wfx):
- Wake-on-WLAN support
- Bluetooth:
- add support for skb TX SND/COMPLETION timestamping
- hci_core: enable buffer flow control for SCO/eSCO
- coredump: log devcd dumps into the monitor
- Bluetooth drivers:
- intel: add support to configure TX power
- nxp: handle bootloader error during cmd5 and cmd7"
* tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1681 commits)
unix: fix up for "apparmor: add fine grained af_unix mediation"
mctp: Fix incorrect tx flow invalidation condition in mctp-i2c
net: usb: asix: ax88772: Increase phy_name size
net: phy: Introduce PHY_ID_SIZE — minimum size for PHY ID string
net: libwx: fix Tx L4 checksum
net: libwx: fix Tx descriptor content for some tunnel packets
atm: Fix NULL pointer dereference
net: tn40xx: add pci-id of the aqr105-based Tehuti TN4010 cards
net: tn40xx: prepare tn40xx driver to find phy of the TN9510 card
net: tn40xx: create swnode for mdio and aqr105 phy and add to mdiobus
net: phy: aquantia: add essential functions to aqr105 driver
net: phy: aquantia: search for firmware-name in fwnode
net: phy: aquantia: add probe function to aqr105 for firmware loading
net: phy: Add swnode support to mdiobus_scan
gve: add XDP DROP and PASS support for DQ
gve: update XDP allocation path support RX buffer posting
gve: merge packet buffer size fields
gve: update GQ RX to use buf_size
gve: introduce config-based allocation for XDP
gve: remove xdp_xsk_done and xdp_xsk_wakeup statistics
...
Diffstat (limited to 'drivers/net/dsa/mt7530.c')
| -rw-r--r-- | drivers/net/dsa/mt7530.c | 310 |
1 files changed, 108 insertions, 202 deletions
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 5883eb93efb1..d70399bce5b9 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2050,131 +2050,6 @@ mt7530_setup_gpio(struct mt7530_priv *priv) } #endif /* CONFIG_GPIOLIB */ -static irqreturn_t -mt7530_irq_thread_fn(int irq, void *dev_id) -{ - struct mt7530_priv *priv = dev_id; - bool handled = false; - u32 val; - int p; - - mt7530_mutex_lock(priv); - val = mt7530_mii_read(priv, MT7530_SYS_INT_STS); - mt7530_mii_write(priv, MT7530_SYS_INT_STS, val); - mt7530_mutex_unlock(priv); - - for (p = 0; p < MT7530_NUM_PHYS; p++) { - if (BIT(p) & val) { - unsigned int irq; - - irq = irq_find_mapping(priv->irq_domain, p); - handle_nested_irq(irq); - handled = true; - } - } - - return IRQ_RETVAL(handled); -} - -static void -mt7530_irq_mask(struct irq_data *d) -{ - struct mt7530_priv *priv = irq_data_get_irq_chip_data(d); - - priv->irq_enable &= ~BIT(d->hwirq); -} - -static void -mt7530_irq_unmask(struct irq_data *d) -{ - struct mt7530_priv *priv = irq_data_get_irq_chip_data(d); - - priv->irq_enable |= BIT(d->hwirq); -} - -static void -mt7530_irq_bus_lock(struct irq_data *d) -{ - struct mt7530_priv *priv = irq_data_get_irq_chip_data(d); - - mt7530_mutex_lock(priv); -} - -static void -mt7530_irq_bus_sync_unlock(struct irq_data *d) -{ - struct mt7530_priv *priv = irq_data_get_irq_chip_data(d); - - mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable); - mt7530_mutex_unlock(priv); -} - -static struct irq_chip mt7530_irq_chip = { - .name = KBUILD_MODNAME, - .irq_mask = mt7530_irq_mask, - .irq_unmask = mt7530_irq_unmask, - .irq_bus_lock = mt7530_irq_bus_lock, - .irq_bus_sync_unlock = mt7530_irq_bus_sync_unlock, -}; - -static int -mt7530_irq_map(struct irq_domain *domain, unsigned int irq, - irq_hw_number_t hwirq) -{ - irq_set_chip_data(irq, domain->host_data); - irq_set_chip_and_handler(irq, &mt7530_irq_chip, handle_simple_irq); - irq_set_nested_thread(irq, true); - irq_set_noprobe(irq); - - return 0; -} - -static const struct irq_domain_ops mt7530_irq_domain_ops = { - .map = mt7530_irq_map, - .xlate = irq_domain_xlate_onecell, -}; - -static void -mt7988_irq_mask(struct irq_data *d) -{ - struct mt7530_priv *priv = irq_data_get_irq_chip_data(d); - - priv->irq_enable &= ~BIT(d->hwirq); - mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable); -} - -static void -mt7988_irq_unmask(struct irq_data *d) -{ - struct mt7530_priv *priv = irq_data_get_irq_chip_data(d); - - priv->irq_enable |= BIT(d->hwirq); - mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable); -} - -static struct irq_chip mt7988_irq_chip = { - .name = KBUILD_MODNAME, - .irq_mask = mt7988_irq_mask, - .irq_unmask = mt7988_irq_unmask, -}; - -static int -mt7988_irq_map(struct irq_domain *domain, unsigned int irq, - irq_hw_number_t hwirq) -{ - irq_set_chip_data(irq, domain->host_data); - irq_set_chip_and_handler(irq, &mt7988_irq_chip, handle_simple_irq); - irq_set_nested_thread(irq, true); - irq_set_noprobe(irq); - - return 0; -} - -static const struct irq_domain_ops mt7988_irq_domain_ops = { - .map = mt7988_irq_map, - .xlate = irq_domain_xlate_onecell, -}; - static void mt7530_setup_mdio_irq(struct mt7530_priv *priv) { @@ -2191,49 +2066,72 @@ mt7530_setup_mdio_irq(struct mt7530_priv *priv) } } +static const struct regmap_irq mt7530_irqs[] = { + REGMAP_IRQ_REG_LINE(0, 32), /* PHY0_LC */ + REGMAP_IRQ_REG_LINE(1, 32), /* PHY1_LC */ + REGMAP_IRQ_REG_LINE(2, 32), /* PHY2_LC */ + REGMAP_IRQ_REG_LINE(3, 32), /* PHY3_LC */ + REGMAP_IRQ_REG_LINE(4, 32), /* PHY4_LC */ + REGMAP_IRQ_REG_LINE(5, 32), /* PHY5_LC */ + REGMAP_IRQ_REG_LINE(6, 32), /* PHY6_LC */ + REGMAP_IRQ_REG_LINE(16, 32), /* MAC_PC */ + REGMAP_IRQ_REG_LINE(17, 32), /* BMU */ + REGMAP_IRQ_REG_LINE(18, 32), /* MIB */ + REGMAP_IRQ_REG_LINE(22, 32), /* ARL_COL_FULL_COL */ + REGMAP_IRQ_REG_LINE(23, 32), /* ARL_COL_FULL */ + REGMAP_IRQ_REG_LINE(24, 32), /* ARL_TBL_ERR */ + REGMAP_IRQ_REG_LINE(25, 32), /* ARL_PKT_QERR */ + REGMAP_IRQ_REG_LINE(26, 32), /* ARL_EQ_ERR */ + REGMAP_IRQ_REG_LINE(27, 32), /* ARL_PKT_BC */ + REGMAP_IRQ_REG_LINE(28, 32), /* ARL_SEC_IG1X */ + REGMAP_IRQ_REG_LINE(29, 32), /* ARL_SEC_VLAN */ + REGMAP_IRQ_REG_LINE(30, 32), /* ARL_SEC_TAG */ + REGMAP_IRQ_REG_LINE(31, 32), /* ACL */ +}; + +static const struct regmap_irq_chip mt7530_regmap_irq_chip = { + .name = KBUILD_MODNAME, + .status_base = MT7530_SYS_INT_STS, + .unmask_base = MT7530_SYS_INT_EN, + .ack_base = MT7530_SYS_INT_STS, + .init_ack_masked = true, + .irqs = mt7530_irqs, + .num_irqs = ARRAY_SIZE(mt7530_irqs), + .num_regs = 1, +}; + static int mt7530_setup_irq(struct mt7530_priv *priv) { + struct regmap_irq_chip_data *irq_data; struct device *dev = priv->dev; struct device_node *np = dev->of_node; - int ret; + int irq, ret; if (!of_property_read_bool(np, "interrupt-controller")) { dev_info(dev, "no interrupt support\n"); return 0; } - priv->irq = of_irq_get(np, 0); - if (priv->irq <= 0) { - dev_err(dev, "failed to get parent IRQ: %d\n", priv->irq); - return priv->irq ? : -EINVAL; - } - - if (priv->id == ID_MT7988 || priv->id == ID_EN7581) - priv->irq_domain = irq_domain_add_linear(np, MT7530_NUM_PHYS, - &mt7988_irq_domain_ops, - priv); - else - priv->irq_domain = irq_domain_add_linear(np, MT7530_NUM_PHYS, - &mt7530_irq_domain_ops, - priv); - - if (!priv->irq_domain) { - dev_err(dev, "failed to create IRQ domain\n"); - return -ENOMEM; + irq = of_irq_get(np, 0); + if (irq <= 0) { + dev_err(dev, "failed to get parent IRQ: %d\n", irq); + return irq ? : -EINVAL; } /* This register must be set for MT7530 to properly fire interrupts */ if (priv->id == ID_MT7530 || priv->id == ID_MT7621) mt7530_set(priv, MT7530_TOP_SIG_CTRL, TOP_SIG_CTRL_NORMAL); - ret = request_threaded_irq(priv->irq, NULL, mt7530_irq_thread_fn, - IRQF_ONESHOT, KBUILD_MODNAME, priv); - if (ret) { - irq_domain_remove(priv->irq_domain); - dev_err(dev, "failed to request IRQ: %d\n", ret); + ret = devm_regmap_add_irq_chip_fwnode(dev, dev_fwnode(dev), + priv->regmap, irq, + IRQF_ONESHOT, + 0, &mt7530_regmap_irq_chip, + &irq_data); + if (ret) return ret; - } + + priv->irq_domain = regmap_irq_get_domain(irq_data); return 0; } @@ -2253,26 +2151,6 @@ mt7530_free_mdio_irq(struct mt7530_priv *priv) } } -static void -mt7530_free_irq_common(struct mt7530_priv *priv) -{ - free_irq(priv->irq, priv); - irq_domain_remove(priv->irq_domain); -} - -static void -mt7530_free_irq(struct mt7530_priv *priv) -{ - struct device_node *mnp, *np = priv->dev->of_node; - - mnp = of_get_child_by_name(np, "mdio"); - if (!mnp) - mt7530_free_mdio_irq(priv); - of_node_put(mnp); - - mt7530_free_irq_common(priv); -} - static int mt7530_setup_mdio(struct mt7530_priv *priv) { @@ -2307,13 +2185,13 @@ mt7530_setup_mdio(struct mt7530_priv *priv) bus->parent = dev; bus->phy_mask = ~ds->phys_mii_mask; - if (priv->irq && !mnp) + if (priv->irq_domain && !mnp) mt7530_setup_mdio_irq(priv); ret = devm_of_mdiobus_register(dev, bus, mnp); if (ret) { dev_err(dev, "failed to register MDIO bus: %d\n", ret); - if (priv->irq && !mnp) + if (priv->irq_domain && !mnp) mt7530_free_mdio_irq(priv); } @@ -2586,6 +2464,11 @@ mt7531_setup_common(struct dsa_switch *ds) /* Allow mirroring frames received on the local port (monitor port). */ mt7530_set(priv, MT753X_AGC, LOCAL_EN); + /* Enable Special Tag for rx frames */ + if (priv->id == ID_EN7581) + mt7530_write(priv, MT753X_CPORT_SPTAG_CFG, + CPORT_SW2FE_STAG_EN | CPORT_FE2SW_STAG_EN); + /* Flush the FDB table */ ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL); if (ret < 0) @@ -2953,28 +2836,61 @@ static void mt753x_phylink_mac_link_up(struct phylink_config *config, mcr |= PMCR_FORCE_RX_FC_EN; } - if (mode == MLO_AN_PHY && phydev && phy_init_eee(phydev, false) >= 0) { - switch (speed) { - case SPEED_1000: - case SPEED_2500: - mcr |= PMCR_FORCE_EEE1G; - break; - case SPEED_100: - mcr |= PMCR_FORCE_EEE100; - break; - } - } - mt7530_set(priv, MT753X_PMCR_P(dp->index), mcr); } +static void mt753x_phylink_mac_disable_tx_lpi(struct phylink_config *config) +{ + struct dsa_port *dp = dsa_phylink_to_port(config); + struct mt7530_priv *priv = dp->ds->priv; + + mt7530_clear(priv, MT753X_PMCR_P(dp->index), + PMCR_FORCE_EEE1G | PMCR_FORCE_EEE100); +} + +static int mt753x_phylink_mac_enable_tx_lpi(struct phylink_config *config, + u32 timer, bool tx_clock_stop) +{ + struct dsa_port *dp = dsa_phylink_to_port(config); + struct mt7530_priv *priv = dp->ds->priv; + u32 val; + + /* If the timer is zero, then set LPI_MODE_EN, which allows the + * system to enter LPI mode immediately rather than waiting for + * the LPI threshold. + */ + if (!timer) + val = LPI_MODE_EN; + else if (FIELD_FIT(LPI_THRESH_MASK, timer)) + val = FIELD_PREP(LPI_THRESH_MASK, timer); + else + val = LPI_THRESH_MASK; + + mt7530_rmw(priv, MT753X_PMEEECR_P(dp->index), + LPI_THRESH_MASK | LPI_MODE_EN, val); + + mt7530_set(priv, MT753X_PMCR_P(dp->index), + PMCR_FORCE_EEE1G | PMCR_FORCE_EEE100); + + return 0; +} + static void mt753x_phylink_get_caps(struct dsa_switch *ds, int port, struct phylink_config *config) { struct mt7530_priv *priv = ds->priv; + u32 eeecr; config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE; + config->lpi_capabilities = MAC_100FD | MAC_1000FD | MAC_2500FD; + + eeecr = mt7530_read(priv, MT753X_PMEEECR_P(port)); + /* tx_lpi_timer should be in microseconds. The time units for + * LPI threshold are unspecified. + */ + config->lpi_timer_default = FIELD_GET(LPI_THRESH_MASK, eeecr); + priv->info->mac_port_get_caps(ds, port, config); } @@ -3059,24 +2975,21 @@ mt753x_setup(struct dsa_switch *ds) return ret; ret = mt7530_setup_mdio(priv); - if (ret && priv->irq) - mt7530_free_irq_common(priv); if (ret) return ret; /* Initialise the PCS devices */ for (i = 0; i < priv->ds->num_ports; i++) { priv->pcs[i].pcs.ops = priv->info->pcs_ops; - priv->pcs[i].pcs.neg_mode = true; priv->pcs[i].priv = priv; priv->pcs[i].port = i; } - if (priv->create_sgmii) { + if (priv->create_sgmii) ret = priv->create_sgmii(priv); - if (ret && priv->irq) - mt7530_free_irq(priv); - } + + if (ret && priv->irq_domain) + mt7530_free_mdio_irq(priv); return ret; } @@ -3084,18 +2997,9 @@ mt753x_setup(struct dsa_switch *ds) static int mt753x_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_keee *e) { - struct mt7530_priv *priv = ds->priv; - u32 set, mask = LPI_THRESH_MASK | LPI_MODE_EN; - if (e->tx_lpi_timer > 0xFFF) return -EINVAL; - set = LPI_THRESH_SET(e->tx_lpi_timer); - if (!e->tx_lpi_enabled) - /* Force LPI Mode without a delay */ - set |= LPI_MODE_EN; - mt7530_rmw(priv, MT753X_PMEEECR_P(port), mask, set); - return 0; } @@ -3234,6 +3138,8 @@ static const struct phylink_mac_ops mt753x_phylink_mac_ops = { .mac_config = mt753x_phylink_mac_config, .mac_link_down = mt753x_phylink_mac_link_down, .mac_link_up = mt753x_phylink_mac_link_up, + .mac_disable_tx_lpi = mt753x_phylink_mac_disable_tx_lpi, + .mac_enable_tx_lpi = mt753x_phylink_mac_enable_tx_lpi, }; const struct mt753x_info mt753x_table[] = { @@ -3327,8 +3233,8 @@ EXPORT_SYMBOL_GPL(mt7530_probe_common); void mt7530_remove_common(struct mt7530_priv *priv) { - if (priv->irq) - mt7530_free_irq(priv); + if (priv->irq_domain) + mt7530_free_mdio_irq(priv); dsa_unregister_switch(priv->ds); |
