Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 260 insertions, 0 deletions

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_switch.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_switch.c
new file mode 100644
index 000000000..3392487f6
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_switch.c
@@ -0,0 +1,260 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2021 Marvell.
+ *
+ */
+
+#include <linux/bitfield.h>
+#include "rvu.h"
+
+static int rvu_switch_install_rx_rule(struct rvu *rvu, u16 pcifunc,
+				      u16 chan_mask)
+{
+	struct npc_install_flow_req req = { 0 };
+	struct npc_install_flow_rsp rsp = { 0 };
+	struct rvu_pfvf *pfvf;
+
+	pfvf = rvu_get_pfvf(rvu, pcifunc);
+	/* If the pcifunc is not initialized then nothing to do.
+	 * This same function will be called again via rvu_switch_update_rules
+	 * after pcifunc is initialized.
+	 */
+	if (!test_bit(NIXLF_INITIALIZED, &pfvf->flags))
+		return 0;
+
+	ether_addr_copy(req.packet.dmac, pfvf->mac_addr);
+	eth_broadcast_addr((u8 *)&req.mask.dmac);
+	req.hdr.pcifunc = 0; /* AF is requester */
+	req.vf = pcifunc;
+	req.features = BIT_ULL(NPC_DMAC);
+	req.channel = pfvf->rx_chan_base;
+	req.chan_mask = chan_mask;
+	req.intf = pfvf->nix_rx_intf;
+	req.op = NIX_RX_ACTION_DEFAULT;
+	req.default_rule = 1;
+
+	return rvu_mbox_handler_npc_install_flow(rvu, &req, &rsp);
+}
+
+static int rvu_switch_install_tx_rule(struct rvu *rvu, u16 pcifunc, u16 entry)
+{
+	struct npc_install_flow_req req = { 0 };
+	struct npc_install_flow_rsp rsp = { 0 };
+	struct rvu_pfvf *pfvf;
+	u8 lbkid;
+
+	pfvf = rvu_get_pfvf(rvu, pcifunc);
+	/* If the pcifunc is not initialized then nothing to do.
+	 * This same function will be called again via rvu_switch_update_rules
+	 * after pcifunc is initialized.
+	 */
+	if (!test_bit(NIXLF_INITIALIZED, &pfvf->flags))
+		return 0;
+
+	lbkid = pfvf->nix_blkaddr == BLKADDR_NIX0 ? 0 : 1;
+	ether_addr_copy(req.packet.dmac, pfvf->mac_addr);
+	eth_broadcast_addr((u8 *)&req.mask.dmac);
+	req.hdr.pcifunc = 0; /* AF is requester */
+	req.vf = pcifunc;
+	req.entry = entry;
+	req.features = BIT_ULL(NPC_DMAC);
+	req.intf = pfvf->nix_tx_intf;
+	req.op = NIX_TX_ACTIONOP_UCAST_CHAN;
+	req.index = (lbkid << 8) | RVU_SWITCH_LBK_CHAN;
+	req.set_cntr = 1;
+
+	return rvu_mbox_handler_npc_install_flow(rvu, &req, &rsp);
+}
+
+static int rvu_switch_install_rules(struct rvu *rvu)
+{
+	struct rvu_switch *rswitch = &rvu->rswitch;
+	u16 start = rswitch->start_entry;
+	struct rvu_hwinfo *hw = rvu->hw;
+	u16 pcifunc, entry = 0;
+	int pf, vf, numvfs;
+	int err;
+
+	for (pf = 1; pf < hw->total_pfs; pf++) {
+		if (!is_pf_cgxmapped(rvu, pf))
+			continue;
+
+		pcifunc = pf << 10;
+		/* rvu_get_nix_blkaddr sets up the corresponding NIX block
+		 * address and NIX RX and TX interfaces for a pcifunc.
+		 * Generally it is called during attach call of a pcifunc but it
+		 * is called here since we are pre-installing rules before
+		 * nixlfs are attached
+		 */
+		rvu_get_nix_blkaddr(rvu, pcifunc);
+
+		/* MCAM RX rule for a PF/VF already exists as default unicast
+		 * rules installed by AF. Hence change the channel in those
+		 * rules to ignore channel so that packets with the required
+		 * DMAC received from LBK(by other PF/VFs in system) or from
+		 * external world (from wire) are accepted.
+		 */
+		err = rvu_switch_install_rx_rule(rvu, pcifunc, 0x0);
+		if (err) {
+			dev_err(rvu->dev, "RX rule for PF%d failed(%d)\n",
+				pf, err);
+			return err;
+		}
+
+		err = rvu_switch_install_tx_rule(rvu, pcifunc, start + entry);
+		if (err) {
+			dev_err(rvu->dev, "TX rule for PF%d failed(%d)\n",
+				pf, err);
+			return err;
+		}
+
+		rswitch->entry2pcifunc[entry++] = pcifunc;
+
+		rvu_get_pf_numvfs(rvu, pf, &numvfs, NULL);
+		for (vf = 0; vf < numvfs; vf++) {
+			pcifunc = pf << 10 | ((vf + 1) & 0x3FF);
+			rvu_get_nix_blkaddr(rvu, pcifunc);
+
+			err = rvu_switch_install_rx_rule(rvu, pcifunc, 0x0);
+			if (err) {
+				dev_err(rvu->dev,
+					"RX rule for PF%dVF%d failed(%d)\n",
+					pf, vf, err);
+				return err;
+			}
+
+			err = rvu_switch_install_tx_rule(rvu, pcifunc,
+							 start + entry);
+			if (err) {
+				dev_err(rvu->dev,
+					"TX rule for PF%dVF%d failed(%d)\n",
+					pf, vf, err);
+				return err;
+			}
+
+			rswitch->entry2pcifunc[entry++] = pcifunc;
+		}
+	}
+
+	return 0;
+}
+
+void rvu_switch_enable(struct rvu *rvu)
+{
+	struct npc_mcam_alloc_entry_req alloc_req = { 0 };
+	struct npc_mcam_alloc_entry_rsp alloc_rsp = { 0 };
+	struct npc_delete_flow_req uninstall_req = { 0 };
+	struct npc_mcam_free_entry_req free_req = { 0 };
+	struct rvu_switch *rswitch = &rvu->rswitch;
+	struct msg_rsp rsp;
+	int ret;
+
+	alloc_req.contig = true;
+	alloc_req.count = rvu->cgx_mapped_pfs + rvu->cgx_mapped_vfs;
+	ret = rvu_mbox_handler_npc_mcam_alloc_entry(rvu, &alloc_req,
+						    &alloc_rsp);
+	if (ret) {
+		dev_err(rvu->dev,
+			"Unable to allocate MCAM entries\n");
+		goto exit;
+	}
+
+	if (alloc_rsp.count != alloc_req.count) {
+		dev_err(rvu->dev,
+			"Unable to allocate %d MCAM entries, got %d\n",
+			alloc_req.count, alloc_rsp.count);
+		goto free_entries;
+	}
+
+	rswitch->entry2pcifunc = kcalloc(alloc_req.count, sizeof(u16),
+					 GFP_KERNEL);
+	if (!rswitch->entry2pcifunc)
+		goto free_entries;
+
+	rswitch->used_entries = alloc_rsp.count;
+	rswitch->start_entry = alloc_rsp.entry;
+
+	ret = rvu_switch_install_rules(rvu);
+	if (ret)
+		goto uninstall_rules;
+
+	return;
+
+uninstall_rules:
+	uninstall_req.start = rswitch->start_entry;
+	uninstall_req.end =  rswitch->start_entry + rswitch->used_entries - 1;
+	rvu_mbox_handler_npc_delete_flow(rvu, &uninstall_req, &rsp);
+	kfree(rswitch->entry2pcifunc);
+free_entries:
+	free_req.all = 1;
+	rvu_mbox_handler_npc_mcam_free_entry(rvu, &free_req, &rsp);
+exit:
+	return;
+}
+
+void rvu_switch_disable(struct rvu *rvu)
+{
+	struct npc_delete_flow_req uninstall_req = { 0 };
+	struct npc_mcam_free_entry_req free_req = { 0 };
+	struct rvu_switch *rswitch = &rvu->rswitch;
+	struct rvu_hwinfo *hw = rvu->hw;
+	int pf, vf, numvfs;
+	struct msg_rsp rsp;
+	u16 pcifunc;
+	int err;
+
+	if (!rswitch->used_entries)
+		return;
+
+	for (pf = 1; pf < hw->total_pfs; pf++) {
+		if (!is_pf_cgxmapped(rvu, pf))
+			continue;
+
+		pcifunc = pf << 10;
+		err = rvu_switch_install_rx_rule(rvu, pcifunc, 0xFFF);
+		if (err)
+			dev_err(rvu->dev,
+				"Reverting RX rule for PF%d failed(%d)\n",
+				pf, err);
+
+		rvu_get_pf_numvfs(rvu, pf, &numvfs, NULL);
+		for (vf = 0; vf < numvfs; vf++) {
+			pcifunc = pf << 10 | ((vf + 1) & 0x3FF);
+			err = rvu_switch_install_rx_rule(rvu, pcifunc, 0xFFF);
+			if (err)
+				dev_err(rvu->dev,
+					"Reverting RX rule for PF%dVF%d failed(%d)\n",
+					pf, vf, err);
+		}
+	}
+
+	uninstall_req.start = rswitch->start_entry;
+	uninstall_req.end =  rswitch->start_entry + rswitch->used_entries - 1;
+	free_req.all = 1;
+	rvu_mbox_handler_npc_delete_flow(rvu, &uninstall_req, &rsp);
+	rvu_mbox_handler_npc_mcam_free_entry(rvu, &free_req, &rsp);
+	rswitch->used_entries = 0;
+	kfree(rswitch->entry2pcifunc);
+}
+
+void rvu_switch_update_rules(struct rvu *rvu, u16 pcifunc)
+{
+	struct rvu_switch *rswitch = &rvu->rswitch;
+	u32 max = rswitch->used_entries;
+	u16 entry;
+
+	if (!rswitch->used_entries)
+		return;
+
+	for (entry = 0; entry < max; entry++) {
+		if (rswitch->entry2pcifunc[entry] == pcifunc)
+			break;
+	}
+
+	if (entry >= max)
+		return;
+
+	rvu_switch_install_tx_rule(rvu, pcifunc, rswitch->start_entry + entry);
+	rvu_switch_install_rx_rule(rvu, pcifunc, 0x0);
+}