Merge tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking changes from Paolo Abeni:
 "Core:

   - Refactor the forward memory allocation to better cope with memory
     pressure with many open sockets, moving from a per socket cache to
     a per-CPU one

   - Replace rwlocks with RCU for better fairness in ping, raw sockets
     and IP multicast router.

   - Network-side support for IO uring zero-copy send.

   - A few skb drop reason improvements, including codegen the source
     file with string mapping instead of using macro magic.

   - Rename reference tracking helpers to a more consistent netdev_*
     schema.

   - Adapt u64_stats_t type to address load/store tearing issues.

   - Refine debug helper usage to reduce the log noise caused by bots.

  BPF:

   - Improve socket map performance, avoiding skb cloning on read
     operation.

   - Add support for 64 bits enum, to match types exposed by kernel.

   - Introduce support for sleepable uprobes program.

   - Introduce support for enum textual representation in libbpf.

   - New helpers to implement synproxy with eBPF/XDP.

   - Improve loop performances, inlining indirect calls when possible.

   - Removed all the deprecated libbpf APIs.

   - Implement new eBPF-based LSM flavor.

   - Add type match support, which allow accurate queries to the eBPF
     used types.

   - A few TCP congetsion control framework usability improvements.

   - Add new infrastructure to manipulate CT entries via eBPF programs.

   - Allow for livepatch (KLP) and BPF trampolines to attach to the same
     kernel function.

  Protocols:

   - Introduce per network namespace lookup tables for unix sockets,
     increasing scalability and reducing contention.

   - Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support.

   - Add support to forciby close TIME_WAIT TCP sockets via user-space
     tools.

   - Significant performance improvement for the TLS 1.3 receive path,
     both for zero-copy and not-zero-copy.

   - Support for changing the initial MTPCP subflow priority/backup
     status

   - Introduce virtually contingus buffers for sockets over RDMA, to
     cope better with memory pressure.

   - Extend CAN ethtool support with timestamping capabilities

   - Refactor CAN build infrastructure to allow building only the needed
     features.

  Driver API:

   - Remove devlink mutex to allow parallel commands on multiple links.

   - Add support for pause stats in distributed switch.

   - Implement devlink helpers to query and flash line cards.

   - New helper for phy mode to register conversion.

  New hardware / drivers:

   - Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro.

   - Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch.

   - Ethernet DSA driver for the Microchip LAN937x switch.

   - Ethernet PHY driver for the Aquantia AQR113C EPHY.

   - CAN driver for the OBD-II ELM327 interface.

   - CAN driver for RZ/N1 SJA1000 CAN controller.

   - Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device.

  Drivers:

   - Intel Ethernet NICs:
      - i40e: add support for vlan pruning
      - i40e: add support for XDP framented packets
      - ice: improved vlan offload support
      - ice: add support for PPPoE offload

   - Mellanox Ethernet (mlx5)
      - refactor packet steering offload for performance and scalability
      - extend support for TC offload
      - refactor devlink code to clean-up the locking schema
      - support stacked vlans for bridge offloads
      - use TLS objects pool to improve connection rate

   - Netronome Ethernet NICs (nfp):
      - extend support for IPv6 fields mangling offload
      - add support for vepa mode in HW bridge
      - better support for virtio data path acceleration (VDPA)
      - enable TSO by default

   - Microsoft vNIC driver (mana)
      - add support for XDP redirect

   - Others Ethernet drivers:
      - bonding: add per-port priority support
      - microchip lan743x: extend phy support
      - Fungible funeth: support UDP segmentation offload and XDP xmit
      - Solarflare EF100: add support for virtual function representors
      - MediaTek SoC: add XDP support

   - Mellanox Ethernet/IB switch (mlxsw):
      - dropped support for unreleased H/W (XM router).
      - improved stats accuracy
      - unified bridge model coversion improving scalability (parts 1-6)
      - support for PTP in Spectrum-2 asics

   - Broadcom PHYs
      - add PTP support for BCM54210E
      - add support for the BCM53128 internal PHY

   - Marvell Ethernet switches (prestera):
      - implement support for multicast forwarding offload

   - Embedded Ethernet switches:
      - refactor OcteonTx MAC filter for better scalability
      - improve TC H/W offload for the Felix driver
      - refactor the Microchip ksz8 and ksz9477 drivers to share the
        probe code (parts 1, 2), add support for phylink mac
        configuration

   - Other WiFi:
      - Microchip wilc1000: diable WEP support and enable WPA3
      - Atheros ath10k: encapsulation offload support

  Old code removal:

   - Neterion vxge ethernet driver: this is untouched since more than 10 years"

* tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1890 commits)
  doc: sfp-phylink: Fix a broken reference
  wireguard: selftests: support UML
  wireguard: allowedips: don't corrupt stack when detecting overflow
  wireguard: selftests: update config fragments
  wireguard: ratelimiter: use hrtimer in selftest
  net/mlx5e: xsk: Discard unaligned XSK frames on striding RQ
  net: usb: ax88179_178a: Bind only to vendor-specific interface
  selftests: net: fix IOAM test skip return code
  net: usb: make USB_RTL8153_ECM non user configurable
  net: marvell: prestera: remove reduntant code
  octeontx2-pf: Reduce minimum mtu size to 60
  net: devlink: Fix missing mutex_unlock() call
  net/tls: Remove redundant workqueue flush before destroy
  net: txgbe: Fix an error handling path in txgbe_probe()
  net: dsa: Fix spelling mistakes and cleanup code
  Documentation: devlink: add add devlink-selftests to the table of contents
  dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock
  net: ionic: fix error check for vlan flags in ionic_set_nic_features()
  net: ice: fix error NETIF_F_HW_VLAN_CTAG_FILTER check in ice_vsi_sync_fltr()
  nfp: flower: add support for tunnel offload without key ID
  ...

1 files changed, 161 insertions, 7 deletions

diff --git a/drivers/net/pcs/pcs-xpcs.c b/drivers/net/pcs/pcs-xpcs.c
index d25fbb9caeba..70f88eae2a9e 100644
--- a/drivers/net/pcs/pcs-xpcs.c
+++ b/drivers/net/pcs/pcs-xpcs.c
@@ -77,6 +77,14 @@ static const int xpcs_sgmii_features[] = {
 	__ETHTOOL_LINK_MODE_MASK_NBITS,
 };
 
+static const int xpcs_1000basex_features[] = {
+	ETHTOOL_LINK_MODE_Pause_BIT,
+	ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+	ETHTOOL_LINK_MODE_Autoneg_BIT,
+	ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
+	__ETHTOOL_LINK_MODE_MASK_NBITS,
+};
+
 static const int xpcs_2500basex_features[] = {
 	ETHTOOL_LINK_MODE_Pause_BIT,
 	ETHTOOL_LINK_MODE_Asym_Pause_BIT,
@@ -102,6 +110,10 @@ static const phy_interface_t xpcs_sgmii_interfaces[] = {
 	PHY_INTERFACE_MODE_SGMII,
 };
 
+static const phy_interface_t xpcs_1000basex_interfaces[] = {
+	PHY_INTERFACE_MODE_1000BASEX,
+};
+
 static const phy_interface_t xpcs_2500basex_interfaces[] = {
 	PHY_INTERFACE_MODE_2500BASEX,
 	PHY_INTERFACE_MODE_MAX,
@@ -112,6 +124,7 @@ enum {
 	DW_XPCS_10GKR,
 	DW_XPCS_XLGMII,
 	DW_XPCS_SGMII,
+	DW_XPCS_1000BASEX,
 	DW_XPCS_2500BASEX,
 	DW_XPCS_INTERFACE_MAX,
 };
@@ -189,6 +202,14 @@ int xpcs_write(struct dw_xpcs *xpcs, int dev, u32 reg, u16 val)
 	return mdiobus_c45_write(bus, addr, dev, reg, val);
 }
 
+static int xpcs_modify_changed(struct dw_xpcs *xpcs, int dev, u32 reg,
+			       u16 mask, u16 set)
+{
+	u32 reg_addr = mdiobus_c45_addr(dev, reg);
+
+	return mdiodev_modify_changed(xpcs->mdiodev, reg_addr, mask, set);
+}
+
 static int xpcs_read_vendor(struct dw_xpcs *xpcs, int dev, u32 reg)
 {
 	return xpcs_read(xpcs, dev, DW_VENDOR | reg);
@@ -237,6 +258,7 @@ static int xpcs_soft_reset(struct dw_xpcs *xpcs,
 		break;
 	case DW_AN_C37_SGMII:
 	case DW_2500BASEX:
+	case DW_AN_C37_1000BASEX:
 		dev = MDIO_MMD_VEND2;
 		break;
 	default:
@@ -772,6 +794,68 @@ static int xpcs_config_aneg_c37_sgmii(struct dw_xpcs *xpcs, unsigned int mode)
 	return ret;
 }
 
+static int xpcs_config_aneg_c37_1000basex(struct dw_xpcs *xpcs, unsigned int mode,
+					  const unsigned long *advertising)
+{
+	phy_interface_t interface = PHY_INTERFACE_MODE_1000BASEX;
+	int ret, mdio_ctrl, adv;
+	bool changed = 0;
+
+	/* According to Chap 7.12, to set 1000BASE-X C37 AN, AN must
+	 * be disabled first:-
+	 * 1) VR_MII_MMD_CTRL Bit(12)[AN_ENABLE] = 0b
+	 * 2) VR_MII_AN_CTRL Bit(2:1)[PCS_MODE] = 00b (1000BASE-X C37)
+	 */
+	mdio_ctrl = xpcs_read(xpcs, MDIO_MMD_VEND2, DW_VR_MII_MMD_CTRL);
+	if (mdio_ctrl < 0)
+		return mdio_ctrl;
+
+	if (mdio_ctrl & AN_CL37_EN) {
+		ret = xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_MMD_CTRL,
+				 mdio_ctrl & ~AN_CL37_EN);
+		if (ret < 0)
+			return ret;
+	}
+
+	ret = xpcs_read(xpcs, MDIO_MMD_VEND2, DW_VR_MII_AN_CTRL);
+	if (ret < 0)
+		return ret;
+
+	ret &= ~DW_VR_MII_PCS_MODE_MASK;
+	ret = xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_AN_CTRL, ret);
+	if (ret < 0)
+		return ret;
+
+	/* Check for advertising changes and update the C45 MII ADV
+	 * register accordingly.
+	 */
+	adv = phylink_mii_c22_pcs_encode_advertisement(interface,
+						       advertising);
+	if (adv >= 0) {
+		ret = xpcs_modify_changed(xpcs, MDIO_MMD_VEND2,
+					  MII_ADVERTISE, 0xffff, adv);
+		if (ret < 0)
+			return ret;
+
+		changed = ret;
+	}
+
+	/* Clear CL37 AN complete status */
+	ret = xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_AN_INTR_STS, 0);
+	if (ret < 0)
+		return ret;
+
+	if (phylink_autoneg_inband(mode) &&
+	    linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, advertising)) {
+		ret = xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_MMD_CTRL,
+				 mdio_ctrl | AN_CL37_EN);
+		if (ret < 0)
+			return ret;
+	}
+
+	return changed;
+}
+
 static int xpcs_config_2500basex(struct dw_xpcs *xpcs)
 {
 	int ret;
@@ -795,7 +879,7 @@ static int xpcs_config_2500basex(struct dw_xpcs *xpcs)
 }
 
 int xpcs_do_config(struct dw_xpcs *xpcs, phy_interface_t interface,
-		   unsigned int mode)
+		   unsigned int mode, const unsigned long *advertising)
 {
 	const struct xpcs_compat *compat;
 	int ret;
@@ -817,6 +901,12 @@ int xpcs_do_config(struct dw_xpcs *xpcs, phy_interface_t interface,
 		if (ret)
 			return ret;
 		break;
+	case DW_AN_C37_1000BASEX:
+		ret = xpcs_config_aneg_c37_1000basex(xpcs, mode,
+						     advertising);
+		if (ret)
+			return ret;
+		break;
 	case DW_2500BASEX:
 		ret = xpcs_config_2500basex(xpcs);
 		if (ret)
@@ -843,7 +933,7 @@ static int xpcs_config(struct phylink_pcs *pcs, unsigned int mode,
 {
 	struct dw_xpcs *xpcs = phylink_pcs_to_xpcs(pcs);
 
-	return xpcs_do_config(xpcs, interface, mode);
+	return xpcs_do_config(xpcs, interface, mode, advertising);
 }
 
 static int xpcs_get_state_c73(struct dw_xpcs *xpcs,
@@ -864,7 +954,7 @@ static int xpcs_get_state_c73(struct dw_xpcs *xpcs,
 
 		state->link = 0;
 
-		return xpcs_do_config(xpcs, state->interface, MLO_AN_INBAND);
+		return xpcs_do_config(xpcs, state->interface, MLO_AN_INBAND, NULL);
 	}
 
 	if (state->an_enabled && xpcs_aneg_done_c73(xpcs, state, compat)) {
@@ -921,6 +1011,29 @@ static int xpcs_get_state_c37_sgmii(struct dw_xpcs *xpcs,
 	return 0;
 }
 
+static int xpcs_get_state_c37_1000basex(struct dw_xpcs *xpcs,
+					struct phylink_link_state *state)
+{
+	int lpa, bmsr;
+
+	if (state->an_enabled) {
+		/* Reset link state */
+		state->link = false;
+
+		lpa = xpcs_read(xpcs, MDIO_MMD_VEND2, MII_LPA);
+		if (lpa < 0 || lpa & LPA_RFAULT)
+			return lpa;
+
+		bmsr = xpcs_read(xpcs, MDIO_MMD_VEND2, MII_BMSR);
+		if (bmsr < 0)
+			return bmsr;
+
+		phylink_mii_c22_pcs_decode_state(state, bmsr, lpa);
+	}
+
+	return 0;
+}
+
 static void xpcs_get_state(struct phylink_pcs *pcs,
 			   struct phylink_link_state *state)
 {
@@ -948,6 +1061,13 @@ static void xpcs_get_state(struct phylink_pcs *pcs,
 			       ERR_PTR(ret));
 		}
 		break;
+	case DW_AN_C37_1000BASEX:
+		ret = xpcs_get_state_c37_1000basex(xpcs, state);
+		if (ret) {
+			pr_err("xpcs_get_state_c37_1000basex returned %pe\n",
+			       ERR_PTR(ret));
+		}
+		break;
 	default:
 		return;
 	}
@@ -961,22 +1081,35 @@ static void xpcs_link_up_sgmii(struct dw_xpcs *xpcs, unsigned int mode,
 	if (phylink_autoneg_inband(mode))
 		return;
 
+	val = mii_bmcr_encode_fixed(speed, duplex);
+	ret = xpcs_write(xpcs, MDIO_MMD_VEND2, MDIO_CTRL1, val);
+	if (ret)
+		pr_err("%s: xpcs_write returned %pe\n", __func__, ERR_PTR(ret));
+}
+
+static void xpcs_link_up_1000basex(struct dw_xpcs *xpcs, unsigned int mode,
+				   int speed, int duplex)
+{
+	int val, ret;
+
+	if (phylink_autoneg_inband(mode))
+		return;
+
 	switch (speed) {
 	case SPEED_1000:
 		val = BMCR_SPEED1000;
 		break;
 	case SPEED_100:
-		val = BMCR_SPEED100;
-		break;
 	case SPEED_10:
-		val = BMCR_SPEED10;
-		break;
 	default:
+		pr_err("%s: speed = %d\n", __func__, speed);
 		return;
 	}
 
 	if (duplex == DUPLEX_FULL)
 		val |= BMCR_FULLDPLX;
+	else
+		pr_err("%s: half duplex not supported\n", __func__);
 
 	ret = xpcs_write(xpcs, MDIO_MMD_VEND2, MDIO_CTRL1, val);
 	if (ret)
@@ -992,9 +1125,23 @@ void xpcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
 		return xpcs_config_usxgmii(xpcs, speed);
 	if (interface == PHY_INTERFACE_MODE_SGMII)
 		return xpcs_link_up_sgmii(xpcs, mode, speed, duplex);
+	if (interface == PHY_INTERFACE_MODE_1000BASEX)
+		return xpcs_link_up_1000basex(xpcs, mode, speed, duplex);
 }
 EXPORT_SYMBOL_GPL(xpcs_link_up);
 
+static void xpcs_an_restart(struct phylink_pcs *pcs)
+{
+	struct dw_xpcs *xpcs = phylink_pcs_to_xpcs(pcs);
+	int ret;
+
+	ret = xpcs_read(xpcs, MDIO_MMD_VEND2, MDIO_CTRL1);
+	if (ret >= 0) {
+		ret |= BMCR_ANRESTART;
+		xpcs_write(xpcs, MDIO_MMD_VEND2, MDIO_CTRL1, ret);
+	}
+}
+
 static u32 xpcs_get_id(struct dw_xpcs *xpcs)
 {
 	int ret;
@@ -1060,6 +1207,12 @@ static const struct xpcs_compat synopsys_xpcs_compat[DW_XPCS_INTERFACE_MAX] = {
 		.num_interfaces = ARRAY_SIZE(xpcs_sgmii_interfaces),
 		.an_mode = DW_AN_C37_SGMII,
 	},
+	[DW_XPCS_1000BASEX] = {
+		.supported = xpcs_1000basex_features,
+		.interface = xpcs_1000basex_interfaces,
+		.num_interfaces = ARRAY_SIZE(xpcs_1000basex_interfaces),
+		.an_mode = DW_AN_C37_1000BASEX,
+	},
 	[DW_XPCS_2500BASEX] = {
 		.supported = xpcs_2500basex_features,
 		.interface = xpcs_2500basex_interfaces,
@@ -1115,6 +1268,7 @@ static const struct phylink_pcs_ops xpcs_phylink_ops = {
 	.pcs_validate = xpcs_validate,
 	.pcs_config = xpcs_config,
 	.pcs_get_state = xpcs_get_state,
+	.pcs_an_restart = xpcs_an_restart,
 	.pcs_link_up = xpcs_link_up,
 };