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

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, 217 insertions, 1 deletions

diff --git a/drivers/net/ethernet/sfc/mae.c b/drivers/net/ethernet/sfc/mae.c
index 583baf69981c..2d32abe5f478 100644
--- a/drivers/net/ethernet/sfc/mae.c
+++ b/drivers/net/ethernet/sfc/mae.c
@@ -9,8 +9,11 @@
  * by the Free Software Foundation, incorporated herein by reference.
  */
 
+#include <linux/rhashtable.h>
+#include "ef100_nic.h"
 #include "mae.h"
 #include "mcdi.h"
+#include "mcdi_pcol.h"
 #include "mcdi_pcol_mae.h"
 
 int efx_mae_allocate_mport(struct efx_nic *efx, u32 *id, u32 *label)
@@ -94,7 +97,7 @@ void efx_mae_mport_mport(struct efx_nic *efx __always_unused, u32 mport_id, u32
 }
 
 /* id is really only 24 bits wide */
-int efx_mae_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id)
+int efx_mae_fw_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id)
 {
 	MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_MPORT_LOOKUP_OUT_LEN);
 	MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_MPORT_LOOKUP_IN_LEN);
@@ -485,11 +488,193 @@ int efx_mae_free_counter(struct efx_nic *efx, struct efx_tc_counter *cnt)
 	return 0;
 }
 
+int efx_mae_lookup_mport(struct efx_nic *efx, u32 vf_idx, u32 *id)
+{
+	struct ef100_nic_data *nic_data = efx->nic_data;
+	struct efx_mae *mae = efx->mae;
+	struct rhashtable_iter walk;
+	struct mae_mport_desc *m;
+	int rc = -ENOENT;
+
+	rhashtable_walk_enter(&mae->mports_ht, &walk);
+	rhashtable_walk_start(&walk);
+	while ((m = rhashtable_walk_next(&walk)) != NULL) {
+		if (m->mport_type == MAE_MPORT_DESC_MPORT_TYPE_VNIC &&
+		    m->interface_idx == nic_data->local_mae_intf &&
+		    m->pf_idx == 0 &&
+		    m->vf_idx == vf_idx) {
+			*id = m->mport_id;
+			rc = 0;
+			break;
+		}
+	}
+	rhashtable_walk_stop(&walk);
+	rhashtable_walk_exit(&walk);
+	return rc;
+}
+
 static bool efx_mae_asl_id(u32 id)
 {
 	return !!(id & BIT(31));
 }
 
+/* mport handling */
+static const struct rhashtable_params efx_mae_mports_ht_params = {
+	.key_len	= sizeof(u32),
+	.key_offset	= offsetof(struct mae_mport_desc, mport_id),
+	.head_offset	= offsetof(struct mae_mport_desc, linkage),
+};
+
+struct mae_mport_desc *efx_mae_get_mport(struct efx_nic *efx, u32 mport_id)
+{
+	return rhashtable_lookup_fast(&efx->mae->mports_ht, &mport_id,
+				      efx_mae_mports_ht_params);
+}
+
+static int efx_mae_add_mport(struct efx_nic *efx, struct mae_mport_desc *desc)
+{
+	struct efx_mae *mae = efx->mae;
+	int rc;
+
+	rc = rhashtable_insert_fast(&mae->mports_ht, &desc->linkage,
+				    efx_mae_mports_ht_params);
+
+	if (rc) {
+		pci_err(efx->pci_dev, "Failed to insert MPORT %08x, rc %d\n",
+			desc->mport_id, rc);
+		kfree(desc);
+		return rc;
+	}
+
+	return rc;
+}
+
+void efx_mae_remove_mport(void *desc, void *arg)
+{
+	struct mae_mport_desc *mport = desc;
+
+	synchronize_rcu();
+	kfree(mport);
+}
+
+static int efx_mae_process_mport(struct efx_nic *efx,
+				 struct mae_mport_desc *desc)
+{
+	struct ef100_nic_data *nic_data = efx->nic_data;
+	struct mae_mport_desc *mport;
+
+	mport = efx_mae_get_mport(efx, desc->mport_id);
+	if (!IS_ERR_OR_NULL(mport)) {
+		netif_err(efx, drv, efx->net_dev,
+			  "mport with id %u does exist!!!\n", desc->mport_id);
+		return -EEXIST;
+	}
+
+	if (nic_data->have_own_mport &&
+	    desc->mport_id == nic_data->own_mport) {
+		WARN_ON(desc->mport_type != MAE_MPORT_DESC_MPORT_TYPE_VNIC);
+		WARN_ON(desc->vnic_client_type !=
+			MAE_MPORT_DESC_VNIC_CLIENT_TYPE_FUNCTION);
+		nic_data->local_mae_intf = desc->interface_idx;
+		nic_data->have_local_intf = true;
+		pci_dbg(efx->pci_dev, "MAE interface_idx is %u\n",
+			nic_data->local_mae_intf);
+	}
+
+	return efx_mae_add_mport(efx, desc);
+}
+
+#define MCDI_MPORT_JOURNAL_LEN \
+	ALIGN(MC_CMD_MAE_MPORT_READ_JOURNAL_OUT_LENMAX_MCDI2, 4)
+
+int efx_mae_enumerate_mports(struct efx_nic *efx)
+{
+	efx_dword_t *outbuf = kzalloc(MCDI_MPORT_JOURNAL_LEN, GFP_KERNEL);
+	MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_MPORT_READ_JOURNAL_IN_LEN);
+	MCDI_DECLARE_STRUCT_PTR(desc);
+	size_t outlen, stride, count;
+	int rc = 0, i;
+
+	if (!outbuf)
+		return -ENOMEM;
+	do {
+		rc = efx_mcdi_rpc(efx, MC_CMD_MAE_MPORT_READ_JOURNAL, inbuf,
+				  sizeof(inbuf), outbuf,
+				  MCDI_MPORT_JOURNAL_LEN, &outlen);
+		if (rc)
+			goto fail;
+		if (outlen < MC_CMD_MAE_MPORT_READ_JOURNAL_OUT_MPORT_DESC_DATA_OFST) {
+			rc = -EIO;
+			goto fail;
+		}
+		count = MCDI_DWORD(outbuf, MAE_MPORT_READ_JOURNAL_OUT_MPORT_DESC_COUNT);
+		if (!count)
+			continue; /* not break; we want to look at MORE flag */
+		stride = MCDI_DWORD(outbuf, MAE_MPORT_READ_JOURNAL_OUT_SIZEOF_MPORT_DESC);
+		if (stride < MAE_MPORT_DESC_LEN) {
+			rc = -EIO;
+			goto fail;
+		}
+		if (outlen < MC_CMD_MAE_MPORT_READ_JOURNAL_OUT_LEN(count * stride)) {
+			rc = -EIO;
+			goto fail;
+		}
+
+		for (i = 0; i < count; i++) {
+			struct mae_mport_desc *d;
+
+			d = kzalloc(sizeof(*d), GFP_KERNEL);
+			if (!d) {
+				rc = -ENOMEM;
+				goto fail;
+			}
+
+			desc = (efx_dword_t *)
+				_MCDI_PTR(outbuf, MC_CMD_MAE_MPORT_READ_JOURNAL_OUT_MPORT_DESC_DATA_OFST +
+					  i * stride);
+			d->mport_id = MCDI_STRUCT_DWORD(desc, MAE_MPORT_DESC_MPORT_ID);
+			d->flags = MCDI_STRUCT_DWORD(desc, MAE_MPORT_DESC_FLAGS);
+			d->caller_flags = MCDI_STRUCT_DWORD(desc,
+							    MAE_MPORT_DESC_CALLER_FLAGS);
+			d->mport_type = MCDI_STRUCT_DWORD(desc,
+							  MAE_MPORT_DESC_MPORT_TYPE);
+			switch (d->mport_type) {
+			case MAE_MPORT_DESC_MPORT_TYPE_NET_PORT:
+				d->port_idx = MCDI_STRUCT_DWORD(desc,
+								MAE_MPORT_DESC_NET_PORT_IDX);
+				break;
+			case MAE_MPORT_DESC_MPORT_TYPE_ALIAS:
+				d->alias_mport_id = MCDI_STRUCT_DWORD(desc,
+								      MAE_MPORT_DESC_ALIAS_DELIVER_MPORT_ID);
+				break;
+			case MAE_MPORT_DESC_MPORT_TYPE_VNIC:
+				d->vnic_client_type = MCDI_STRUCT_DWORD(desc,
+									MAE_MPORT_DESC_VNIC_CLIENT_TYPE);
+				d->interface_idx = MCDI_STRUCT_DWORD(desc,
+								     MAE_MPORT_DESC_VNIC_FUNCTION_INTERFACE);
+				d->pf_idx = MCDI_STRUCT_WORD(desc,
+							     MAE_MPORT_DESC_VNIC_FUNCTION_PF_IDX);
+				d->vf_idx = MCDI_STRUCT_WORD(desc,
+							     MAE_MPORT_DESC_VNIC_FUNCTION_VF_IDX);
+				break;
+			default:
+				/* Unknown mport_type, just accept it */
+				break;
+			}
+			rc = efx_mae_process_mport(efx, d);
+			/* Any failure will be due to memory allocation faiure,
+			 * so there is no point to try subsequent entries.
+			 */
+			if (rc)
+				goto fail;
+		}
+	} while (MCDI_FIELD(outbuf, MAE_MPORT_READ_JOURNAL_OUT, MORE) &&
+		 !WARN_ON(!count));
+fail:
+	kfree(outbuf);
+	return rc;
+}
+
 int efx_mae_alloc_action_set(struct efx_nic *efx, struct efx_tc_action_set *act)
 {
 	MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ACTION_SET_ALLOC_OUT_LEN);
@@ -805,3 +990,34 @@ int efx_mae_delete_rule(struct efx_nic *efx, u32 id)
 		return -EIO;
 	return 0;
 }
+
+int efx_init_mae(struct efx_nic *efx)
+{
+	struct ef100_nic_data *nic_data = efx->nic_data;
+	struct efx_mae *mae;
+	int rc;
+
+	if (!nic_data->have_mport)
+		return -EINVAL;
+
+	mae = kmalloc(sizeof(*mae), GFP_KERNEL);
+	if (!mae)
+		return -ENOMEM;
+
+	rc = rhashtable_init(&mae->mports_ht, &efx_mae_mports_ht_params);
+	if (rc < 0) {
+		kfree(mae);
+		return rc;
+	}
+	efx->mae = mae;
+	mae->efx = efx;
+	return 0;
+}
+
+void efx_fini_mae(struct efx_nic *efx)
+{
+	struct efx_mae *mae = efx->mae;
+
+	kfree(mae);
+	efx->mae = NULL;
+}