Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - support "prefer busy polling" NAPI operation mode, where we defer
     softirq for some time expecting applications to periodically busy
     poll

   - AF_XDP: improve efficiency by more batching and hindering the
     adjacency cache prefetcher

   - af_packet: make packet_fanout.arr size configurable up to 64K

   - tcp: optimize TCP zero copy receive in presence of partial or
     unaligned reads making zero copy a performance win for much smaller
     messages

   - XDP: add bulk APIs for returning / freeing frames

   - sched: support fragmenting IP packets as they come out of conntrack

   - net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs

  BPF:

   - BPF switch from crude rlimit-based to memcg-based memory accounting

   - BPF type format information for kernel modules and related tracing
     enhancements

   - BPF implement task local storage for BPF LSM

   - allow the FENTRY/FEXIT/RAW_TP tracing programs to use
     bpf_sk_storage

  Protocols:

   - mptcp: improve multiple xmit streams support, memory accounting and
     many smaller improvements

   - TLS: support CHACHA20-POLY1305 cipher

   - seg6: add support for SRv6 End.DT4/DT6 behavior

   - sctp: Implement RFC 6951: UDP Encapsulation of SCTP

   - ppp_generic: add ability to bridge channels directly

   - bridge: Connectivity Fault Management (CFM) support as is defined
     in IEEE 802.1Q section 12.14.

  Drivers:

   - mlx5: make use of the new auxiliary bus to organize the driver
     internals

   - mlx5: more accurate port TX timestamping support

   - mlxsw:
      - improve the efficiency of offloaded next hop updates by using
        the new nexthop object API
      - support blackhole nexthops
      - support IEEE 802.1ad (Q-in-Q) bridging

   - rtw88: major bluetooth co-existance improvements

   - iwlwifi: support new 6 GHz frequency band

   - ath11k: Fast Initial Link Setup (FILS)

   - mt7915: dual band concurrent (DBDC) support

   - net: ipa: add basic support for IPA v4.5

  Refactor:

   - a few pieces of in_interrupt() cleanup work from Sebastian Andrzej
     Siewior

   - phy: add support for shared interrupts; get rid of multiple driver
     APIs and have the drivers write a full IRQ handler, slight growth
     of driver code should be compensated by the simpler API which also
     allows shared IRQs

   - add common code for handling netdev per-cpu counters

   - move TX packet re-allocation from Ethernet switch tag drivers to a
     central place

   - improve efficiency and rename nla_strlcpy

   - number of W=1 warning cleanups as we now catch those in a patchwork
     build bot

  Old code removal:

   - wan: delete the DLCI / SDLA drivers

   - wimax: move to staging

   - wifi: remove old WDS wifi bridging support"

* tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits)
  net: hns3: fix expression that is currently always true
  net: fix proc_fs init handling in af_packet and tls
  nfc: pn533: convert comma to semicolon
  af_vsock: Assign the vsock transport considering the vsock address flags
  af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path
  vsock_addr: Check for supported flag values
  vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag
  vm_sockets: Add flags field in the vsock address data structure
  net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled
  tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit
  net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context
  nfc: s3fwrn5: Release the nfc firmware
  net: vxget: clean up sparse warnings
  mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router
  mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3
  mlxsw: spectrum_router_xm: Introduce basic XM cache flushing
  mlxsw: reg: Add Router LPM Cache Enable Register
  mlxsw: reg: Add Router LPM Cache ML Delete Register
  mlxsw: spectrum_router_xm: Implement L-value tracking for M-index
  mlxsw: reg: Add XM Router M Table Register
  ...

1 files changed, 72 insertions, 43 deletions

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 9aafd3ecdaa4..6fea980acf64 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -1049,20 +1049,13 @@ static int axienet_open(struct net_device *ndev)
 
 	dev_dbg(&ndev->dev, "axienet_open()\n");
 
-	/* Disable the MDIO interface till Axi Ethernet Reset is completed.
-	 * When we do an Axi Ethernet reset, it resets the complete core
-	 * including the MDIO. MDIO must be disabled before resetting
-	 * and re-enabled afterwards.
+	/* When we do an Axi Ethernet reset, it resets the complete core
+	 * including the MDIO. MDIO must be disabled before resetting.
 	 * Hold MDIO bus lock to avoid MDIO accesses during the reset.
 	 */
 	mutex_lock(&lp->mii_bus->mdio_lock);
-	axienet_mdio_disable(lp);
 	ret = axienet_device_reset(ndev);
-	if (ret == 0)
-		ret = axienet_mdio_enable(lp);
 	mutex_unlock(&lp->mii_bus->mdio_lock);
-	if (ret < 0)
-		return ret;
 
 	ret = phylink_of_phy_connect(lp->phylink, lp->dev->of_node, 0);
 	if (ret) {
@@ -1156,9 +1149,7 @@ static int axienet_stop(struct net_device *ndev)
 
 	/* Do a reset to ensure DMA is really stopped */
 	mutex_lock(&lp->mii_bus->mdio_lock);
-	axienet_mdio_disable(lp);
 	__axienet_device_reset(lp);
-	axienet_mdio_enable(lp);
 	mutex_unlock(&lp->mii_bus->mdio_lock);
 
 	cancel_work_sync(&lp->dma_err_task);
@@ -1517,10 +1508,27 @@ static void axienet_validate(struct phylink_config *config,
 
 	phylink_set(mask, Asym_Pause);
 	phylink_set(mask, Pause);
-	phylink_set(mask, 1000baseX_Full);
-	phylink_set(mask, 10baseT_Full);
-	phylink_set(mask, 100baseT_Full);
-	phylink_set(mask, 1000baseT_Full);
+
+	switch (state->interface) {
+	case PHY_INTERFACE_MODE_NA:
+	case PHY_INTERFACE_MODE_1000BASEX:
+	case PHY_INTERFACE_MODE_SGMII:
+	case PHY_INTERFACE_MODE_GMII:
+	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+		phylink_set(mask, 1000baseX_Full);
+		phylink_set(mask, 1000baseT_Full);
+		if (state->interface == PHY_INTERFACE_MODE_1000BASEX)
+			break;
+		fallthrough;
+	case PHY_INTERFACE_MODE_MII:
+		phylink_set(mask, 100baseT_Full);
+		phylink_set(mask, 10baseT_Full);
+	default:
+		break;
+	}
 
 	bitmap_and(supported, supported, mask,
 		   __ETHTOOL_LINK_MODE_MASK_NBITS);
@@ -1533,38 +1541,46 @@ static void axienet_mac_pcs_get_state(struct phylink_config *config,
 {
 	struct net_device *ndev = to_net_dev(config->dev);
 	struct axienet_local *lp = netdev_priv(ndev);
-	u32 emmc_reg, fcc_reg;
-
-	state->interface = lp->phy_mode;
 
-	emmc_reg = axienet_ior(lp, XAE_EMMC_OFFSET);
-	if (emmc_reg & XAE_EMMC_LINKSPD_1000)
-		state->speed = SPEED_1000;
-	else if (emmc_reg & XAE_EMMC_LINKSPD_100)
-		state->speed = SPEED_100;
-	else
-		state->speed = SPEED_10;
-
-	state->pause = 0;
-	fcc_reg = axienet_ior(lp, XAE_FCC_OFFSET);
-	if (fcc_reg & XAE_FCC_FCTX_MASK)
-		state->pause |= MLO_PAUSE_TX;
-	if (fcc_reg & XAE_FCC_FCRX_MASK)
-		state->pause |= MLO_PAUSE_RX;
-
-	state->an_complete = 0;
-	state->duplex = 1;
+	switch (state->interface) {
+	case PHY_INTERFACE_MODE_SGMII:
+	case PHY_INTERFACE_MODE_1000BASEX:
+		phylink_mii_c22_pcs_get_state(lp->pcs_phy, state);
+		break;
+	default:
+		break;
+	}
 }
 
 static void axienet_mac_an_restart(struct phylink_config *config)
 {
-	/* Unsupported, do nothing */
+	struct net_device *ndev = to_net_dev(config->dev);
+	struct axienet_local *lp = netdev_priv(ndev);
+
+	phylink_mii_c22_pcs_an_restart(lp->pcs_phy);
 }
 
 static void axienet_mac_config(struct phylink_config *config, unsigned int mode,
 			       const struct phylink_link_state *state)
 {
-	/* nothing meaningful to do */
+	struct net_device *ndev = to_net_dev(config->dev);
+	struct axienet_local *lp = netdev_priv(ndev);
+	int ret;
+
+	switch (state->interface) {
+	case PHY_INTERFACE_MODE_SGMII:
+	case PHY_INTERFACE_MODE_1000BASEX:
+		ret = phylink_mii_c22_pcs_config(lp->pcs_phy, mode,
+						 state->interface,
+						 state->advertising);
+		if (ret < 0)
+			netdev_warn(ndev, "Failed to configure PCS: %d\n",
+				    ret);
+		break;
+
+	default:
+		break;
+	}
 }
 
 static void axienet_mac_link_down(struct phylink_config *config,
@@ -1644,16 +1660,12 @@ static void axienet_dma_err_handler(struct work_struct *work)
 
 	axienet_setoptions(ndev, lp->options &
 			   ~(XAE_OPTION_TXEN | XAE_OPTION_RXEN));
-	/* Disable the MDIO interface till Axi Ethernet Reset is completed.
-	 * When we do an Axi Ethernet reset, it resets the complete core
-	 * including the MDIO. MDIO must be disabled before resetting
-	 * and re-enabled afterwards.
+	/* When we do an Axi Ethernet reset, it resets the complete core
+	 * including the MDIO. MDIO must be disabled before resetting.
 	 * Hold MDIO bus lock to avoid MDIO accesses during the reset.
 	 */
 	mutex_lock(&lp->mii_bus->mdio_lock);
-	axienet_mdio_disable(lp);
 	__axienet_device_reset(lp);
-	axienet_mdio_enable(lp);
 	mutex_unlock(&lp->mii_bus->mdio_lock);
 
 	for (i = 0; i < lp->tx_bd_num; i++) {
@@ -1999,6 +2011,20 @@ static int axienet_probe(struct platform_device *pdev)
 			dev_warn(&pdev->dev,
 				 "error registering MDIO bus: %d\n", ret);
 	}
+	if (lp->phy_mode == PHY_INTERFACE_MODE_SGMII ||
+	    lp->phy_mode == PHY_INTERFACE_MODE_1000BASEX) {
+		if (!lp->phy_node) {
+			dev_err(&pdev->dev, "phy-handle required for 1000BaseX/SGMII\n");
+			ret = -EINVAL;
+			goto free_netdev;
+		}
+		lp->pcs_phy = of_mdio_find_device(lp->phy_node);
+		if (!lp->pcs_phy) {
+			ret = -EPROBE_DEFER;
+			goto free_netdev;
+		}
+		lp->phylink_config.pcs_poll = true;
+	}
 
 	lp->phylink_config.dev = &ndev->dev;
 	lp->phylink_config.type = PHYLINK_NETDEV;
@@ -2036,6 +2062,9 @@ static int axienet_remove(struct platform_device *pdev)
 	if (lp->phylink)
 		phylink_destroy(lp->phylink);
 
+	if (lp->pcs_phy)
+		put_device(&lp->pcs_phy->dev);
+
 	axienet_mdio_teardown(lp);
 
 	clk_disable_unprepare(lp->clk);