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, 253 insertions, 0 deletions

diff --git a/drivers/net/ethernet/ibm/ehea/ehea_hw.h b/drivers/net/ethernet/ibm/ehea/ehea_hw.h
new file mode 100644
index 000000000..590933a45
--- /dev/null
+++ b/drivers/net/ethernet/ibm/ehea/ehea_hw.h
@@ -0,0 +1,253 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *  linux/drivers/net/ethernet/ibm/ehea/ehea_hw.h
+ *
+ *  eHEA ethernet device driver for IBM eServer System p
+ *
+ *  (C) Copyright IBM Corp. 2006
+ *
+ *  Authors:
+ *       Christoph Raisch <raisch@de.ibm.com>
+ *       Jan-Bernd Themann <themann@de.ibm.com>
+ *       Thomas Klein <tklein@de.ibm.com>
+ */
+
+#ifndef __EHEA_HW_H__
+#define __EHEA_HW_H__
+
+#define QPX_SQA_VALUE   EHEA_BMASK_IBM(48, 63)
+#define QPX_RQ1A_VALUE  EHEA_BMASK_IBM(48, 63)
+#define QPX_RQ2A_VALUE  EHEA_BMASK_IBM(48, 63)
+#define QPX_RQ3A_VALUE  EHEA_BMASK_IBM(48, 63)
+
+#define QPTEMM_OFFSET(x) offsetof(struct ehea_qptemm, x)
+
+struct ehea_qptemm {
+	u64 qpx_hcr;
+	u64 qpx_c;
+	u64 qpx_herr;
+	u64 qpx_aer;
+	u64 qpx_sqa;
+	u64 qpx_sqc;
+	u64 qpx_rq1a;
+	u64 qpx_rq1c;
+	u64 qpx_st;
+	u64 qpx_aerr;
+	u64 qpx_tenure;
+	u64 qpx_reserved1[(0x098 - 0x058) / 8];
+	u64 qpx_portp;
+	u64 qpx_reserved2[(0x100 - 0x0A0) / 8];
+	u64 qpx_t;
+	u64 qpx_sqhp;
+	u64 qpx_sqptp;
+	u64 qpx_reserved3[(0x140 - 0x118) / 8];
+	u64 qpx_sqwsize;
+	u64 qpx_reserved4[(0x170 - 0x148) / 8];
+	u64 qpx_sqsize;
+	u64 qpx_reserved5[(0x1B0 - 0x178) / 8];
+	u64 qpx_sigt;
+	u64 qpx_wqecnt;
+	u64 qpx_rq1hp;
+	u64 qpx_rq1ptp;
+	u64 qpx_rq1size;
+	u64 qpx_reserved6[(0x220 - 0x1D8) / 8];
+	u64 qpx_rq1wsize;
+	u64 qpx_reserved7[(0x240 - 0x228) / 8];
+	u64 qpx_pd;
+	u64 qpx_scqn;
+	u64 qpx_rcqn;
+	u64 qpx_aeqn;
+	u64 reserved49;
+	u64 qpx_ram;
+	u64 qpx_reserved8[(0x300 - 0x270) / 8];
+	u64 qpx_rq2a;
+	u64 qpx_rq2c;
+	u64 qpx_rq2hp;
+	u64 qpx_rq2ptp;
+	u64 qpx_rq2size;
+	u64 qpx_rq2wsize;
+	u64 qpx_rq2th;
+	u64 qpx_rq3a;
+	u64 qpx_rq3c;
+	u64 qpx_rq3hp;
+	u64 qpx_rq3ptp;
+	u64 qpx_rq3size;
+	u64 qpx_rq3wsize;
+	u64 qpx_rq3th;
+	u64 qpx_lpn;
+	u64 qpx_reserved9[(0x400 - 0x378) / 8];
+	u64 reserved_ext[(0x500 - 0x400) / 8];
+	u64 reserved2[(0x1000 - 0x500) / 8];
+};
+
+#define MRx_HCR_LPARID_VALID EHEA_BMASK_IBM(0, 0)
+
+#define MRMWMM_OFFSET(x) offsetof(struct ehea_mrmwmm, x)
+
+struct ehea_mrmwmm {
+	u64 mrx_hcr;
+	u64 mrx_c;
+	u64 mrx_herr;
+	u64 mrx_aer;
+	u64 mrx_pp;
+	u64 reserved1;
+	u64 reserved2;
+	u64 reserved3;
+	u64 reserved4[(0x200 - 0x40) / 8];
+	u64 mrx_ctl[64];
+};
+
+#define QPEDMM_OFFSET(x) offsetof(struct ehea_qpedmm, x)
+
+struct ehea_qpedmm {
+
+	u64 reserved0[(0x400) / 8];
+	u64 qpedx_phh;
+	u64 qpedx_ppsgp;
+	u64 qpedx_ppsgu;
+	u64 qpedx_ppdgp;
+	u64 qpedx_ppdgu;
+	u64 qpedx_aph;
+	u64 qpedx_apsgp;
+	u64 qpedx_apsgu;
+	u64 qpedx_apdgp;
+	u64 qpedx_apdgu;
+	u64 qpedx_apav;
+	u64 qpedx_apsav;
+	u64 qpedx_hcr;
+	u64 reserved1[4];
+	u64 qpedx_rrl0;
+	u64 qpedx_rrrkey0;
+	u64 qpedx_rrva0;
+	u64 reserved2;
+	u64 qpedx_rrl1;
+	u64 qpedx_rrrkey1;
+	u64 qpedx_rrva1;
+	u64 reserved3;
+	u64 qpedx_rrl2;
+	u64 qpedx_rrrkey2;
+	u64 qpedx_rrva2;
+	u64 reserved4;
+	u64 qpedx_rrl3;
+	u64 qpedx_rrrkey3;
+	u64 qpedx_rrva3;
+};
+
+#define CQX_FECADDER EHEA_BMASK_IBM(32, 63)
+#define CQX_FEC_CQE_CNT EHEA_BMASK_IBM(32, 63)
+#define CQX_N1_GENERATE_COMP_EVENT EHEA_BMASK_IBM(0, 0)
+#define CQX_EP_EVENT_PENDING EHEA_BMASK_IBM(0, 0)
+
+#define CQTEMM_OFFSET(x) offsetof(struct ehea_cqtemm, x)
+
+struct ehea_cqtemm {
+	u64 cqx_hcr;
+	u64 cqx_c;
+	u64 cqx_herr;
+	u64 cqx_aer;
+	u64 cqx_ptp;
+	u64 cqx_tp;
+	u64 cqx_fec;
+	u64 cqx_feca;
+	u64 cqx_ep;
+	u64 cqx_eq;
+	u64 reserved1;
+	u64 cqx_n0;
+	u64 cqx_n1;
+	u64 reserved2[(0x1000 - 0x60) / 8];
+};
+
+#define EQTEMM_OFFSET(x) offsetof(struct ehea_eqtemm, x)
+
+struct ehea_eqtemm {
+	u64 eqx_hcr;
+	u64 eqx_c;
+	u64 eqx_herr;
+	u64 eqx_aer;
+	u64 eqx_ptp;
+	u64 eqx_tp;
+	u64 eqx_ssba;
+	u64 eqx_psba;
+	u64 eqx_cec;
+	u64 eqx_meql;
+	u64 eqx_xisbi;
+	u64 eqx_xisc;
+	u64 eqx_it;
+};
+
+/*
+ * These access functions will be changed when the dissuccsion about
+ * the new access methods for POWER has settled.
+ */
+
+static inline u64 epa_load(struct h_epa epa, u32 offset)
+{
+	return __raw_readq((void __iomem *)(epa.addr + offset));
+}
+
+static inline void epa_store(struct h_epa epa, u32 offset, u64 value)
+{
+	__raw_writeq(value, (void __iomem *)(epa.addr + offset));
+	epa_load(epa, offset);	/* synchronize explicitly to eHEA */
+}
+
+static inline void epa_store_acc(struct h_epa epa, u32 offset, u64 value)
+{
+	__raw_writeq(value, (void __iomem *)(epa.addr + offset));
+}
+
+#define epa_store_cq(epa, offset, value)\
+	epa_store(epa, CQTEMM_OFFSET(offset), value)
+#define epa_load_cq(epa, offset)\
+	epa_load(epa, CQTEMM_OFFSET(offset))
+
+static inline void ehea_update_sqa(struct ehea_qp *qp, u16 nr_wqes)
+{
+	struct h_epa epa = qp->epas.kernel;
+	epa_store_acc(epa, QPTEMM_OFFSET(qpx_sqa),
+		      EHEA_BMASK_SET(QPX_SQA_VALUE, nr_wqes));
+}
+
+static inline void ehea_update_rq3a(struct ehea_qp *qp, u16 nr_wqes)
+{
+	struct h_epa epa = qp->epas.kernel;
+	epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq3a),
+		      EHEA_BMASK_SET(QPX_RQ1A_VALUE, nr_wqes));
+}
+
+static inline void ehea_update_rq2a(struct ehea_qp *qp, u16 nr_wqes)
+{
+	struct h_epa epa = qp->epas.kernel;
+	epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq2a),
+		      EHEA_BMASK_SET(QPX_RQ2A_VALUE, nr_wqes));
+}
+
+static inline void ehea_update_rq1a(struct ehea_qp *qp, u16 nr_wqes)
+{
+	struct h_epa epa = qp->epas.kernel;
+	epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq1a),
+		      EHEA_BMASK_SET(QPX_RQ3A_VALUE, nr_wqes));
+}
+
+static inline void ehea_update_feca(struct ehea_cq *cq, u32 nr_cqes)
+{
+	struct h_epa epa = cq->epas.kernel;
+	epa_store_acc(epa, CQTEMM_OFFSET(cqx_feca),
+		      EHEA_BMASK_SET(CQX_FECADDER, nr_cqes));
+}
+
+static inline void ehea_reset_cq_n1(struct ehea_cq *cq)
+{
+	struct h_epa epa = cq->epas.kernel;
+	epa_store_cq(epa, cqx_n1,
+		     EHEA_BMASK_SET(CQX_N1_GENERATE_COMP_EVENT, 1));
+}
+
+static inline void ehea_reset_cq_ep(struct ehea_cq *my_cq)
+{
+	struct h_epa epa = my_cq->epas.kernel;
+	epa_store_acc(epa, CQTEMM_OFFSET(cqx_ep),
+		      EHEA_BMASK_SET(CQX_EP_EVENT_PENDING, 0));
+}
+
+#endif	/* __EHEA_HW_H__ */