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, 214 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e_hmc.h b/drivers/net/ethernet/intel/i40e/i40e_hmc.h
new file mode 100644
index 000000000..9960da07a
--- /dev/null
+++ b/drivers/net/ethernet/intel/i40e/i40e_hmc.h
@@ -0,0 +1,214 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 2013 - 2018 Intel Corporation. */
+
+#ifndef _I40E_HMC_H_
+#define _I40E_HMC_H_
+
+#define I40E_HMC_MAX_BP_COUNT 512
+
+/* forward-declare the HW struct for the compiler */
+struct i40e_hw;
+
+#define I40E_HMC_INFO_SIGNATURE		0x484D5347 /* HMSG */
+#define I40E_HMC_PD_CNT_IN_SD		512
+#define I40E_HMC_DIRECT_BP_SIZE		0x200000 /* 2M */
+#define I40E_HMC_PAGED_BP_SIZE		4096
+#define I40E_HMC_PD_BP_BUF_ALIGNMENT	4096
+
+struct i40e_hmc_obj_info {
+	u64 base;	/* base addr in FPM */
+	u32 max_cnt;	/* max count available for this hmc func */
+	u32 cnt;	/* count of objects driver actually wants to create */
+	u64 size;	/* size in bytes of one object */
+};
+
+enum i40e_sd_entry_type {
+	I40E_SD_TYPE_INVALID = 0,
+	I40E_SD_TYPE_PAGED   = 1,
+	I40E_SD_TYPE_DIRECT  = 2
+};
+
+struct i40e_hmc_bp {
+	enum i40e_sd_entry_type entry_type;
+	struct i40e_dma_mem addr; /* populate to be used by hw */
+	u32 sd_pd_index;
+	u32 ref_cnt;
+};
+
+struct i40e_hmc_pd_entry {
+	struct i40e_hmc_bp bp;
+	u32 sd_index;
+	bool rsrc_pg;
+	bool valid;
+};
+
+struct i40e_hmc_pd_table {
+	struct i40e_dma_mem pd_page_addr; /* populate to be used by hw */
+	struct i40e_hmc_pd_entry  *pd_entry; /* [512] for sw book keeping */
+	struct i40e_virt_mem pd_entry_virt_mem; /* virt mem for pd_entry */
+
+	u32 ref_cnt;
+	u32 sd_index;
+};
+
+struct i40e_hmc_sd_entry {
+	enum i40e_sd_entry_type entry_type;
+	bool valid;
+
+	union {
+		struct i40e_hmc_pd_table pd_table;
+		struct i40e_hmc_bp bp;
+	} u;
+};
+
+struct i40e_hmc_sd_table {
+	struct i40e_virt_mem addr; /* used to track sd_entry allocations */
+	u32 sd_cnt;
+	u32 ref_cnt;
+	struct i40e_hmc_sd_entry *sd_entry; /* (sd_cnt*512) entries max */
+};
+
+struct i40e_hmc_info {
+	u32 signature;
+	/* equals to pci func num for PF and dynamically allocated for VFs */
+	u8 hmc_fn_id;
+	u16 first_sd_index; /* index of the first available SD */
+
+	/* hmc objects */
+	struct i40e_hmc_obj_info *hmc_obj;
+	struct i40e_virt_mem hmc_obj_virt_mem;
+	struct i40e_hmc_sd_table sd_table;
+};
+
+#define I40E_INC_SD_REFCNT(sd_table)	((sd_table)->ref_cnt++)
+#define I40E_INC_PD_REFCNT(pd_table)	((pd_table)->ref_cnt++)
+#define I40E_INC_BP_REFCNT(bp)		((bp)->ref_cnt++)
+
+#define I40E_DEC_SD_REFCNT(sd_table)	((sd_table)->ref_cnt--)
+#define I40E_DEC_PD_REFCNT(pd_table)	((pd_table)->ref_cnt--)
+#define I40E_DEC_BP_REFCNT(bp)		((bp)->ref_cnt--)
+
+/**
+ * I40E_SET_PF_SD_ENTRY - marks the sd entry as valid in the hardware
+ * @hw: pointer to our hw struct
+ * @pa: pointer to physical address
+ * @sd_index: segment descriptor index
+ * @type: if sd entry is direct or paged
+ **/
+#define I40E_SET_PF_SD_ENTRY(hw, pa, sd_index, type)			\
+{									\
+	u32 val1, val2, val3;						\
+	val1 = (u32)(upper_32_bits(pa));				\
+	val2 = (u32)(pa) | (I40E_HMC_MAX_BP_COUNT <<			\
+		 I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT) |		\
+		((((type) == I40E_SD_TYPE_PAGED) ? 0 : 1) <<		\
+		I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT) |			\
+		BIT(I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT);		\
+	val3 = (sd_index) | BIT_ULL(I40E_PFHMC_SDCMD_PMSDWR_SHIFT);	\
+	wr32((hw), I40E_PFHMC_SDDATAHIGH, val1);			\
+	wr32((hw), I40E_PFHMC_SDDATALOW, val2);				\
+	wr32((hw), I40E_PFHMC_SDCMD, val3);				\
+}
+
+/**
+ * I40E_CLEAR_PF_SD_ENTRY - marks the sd entry as invalid in the hardware
+ * @hw: pointer to our hw struct
+ * @sd_index: segment descriptor index
+ * @type: if sd entry is direct or paged
+ **/
+#define I40E_CLEAR_PF_SD_ENTRY(hw, sd_index, type)			\
+{									\
+	u32 val2, val3;							\
+	val2 = (I40E_HMC_MAX_BP_COUNT <<				\
+		I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT) |		\
+		((((type) == I40E_SD_TYPE_PAGED) ? 0 : 1) <<		\
+		I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT);			\
+	val3 = (sd_index) | BIT_ULL(I40E_PFHMC_SDCMD_PMSDWR_SHIFT);	\
+	wr32((hw), I40E_PFHMC_SDDATAHIGH, 0);				\
+	wr32((hw), I40E_PFHMC_SDDATALOW, val2);				\
+	wr32((hw), I40E_PFHMC_SDCMD, val3);				\
+}
+
+/**
+ * I40E_INVALIDATE_PF_HMC_PD - Invalidates the pd cache in the hardware
+ * @hw: pointer to our hw struct
+ * @sd_idx: segment descriptor index
+ * @pd_idx: page descriptor index
+ **/
+#define I40E_INVALIDATE_PF_HMC_PD(hw, sd_idx, pd_idx)			\
+	wr32((hw), I40E_PFHMC_PDINV,					\
+	    (((sd_idx) << I40E_PFHMC_PDINV_PMSDIDX_SHIFT) |		\
+	     ((pd_idx) << I40E_PFHMC_PDINV_PMPDIDX_SHIFT)))
+
+/**
+ * I40E_FIND_SD_INDEX_LIMIT - finds segment descriptor index limit
+ * @hmc_info: pointer to the HMC configuration information structure
+ * @type: type of HMC resources we're searching
+ * @index: starting index for the object
+ * @cnt: number of objects we're trying to create
+ * @sd_idx: pointer to return index of the segment descriptor in question
+ * @sd_limit: pointer to return the maximum number of segment descriptors
+ *
+ * This function calculates the segment descriptor index and index limit
+ * for the resource defined by i40e_hmc_rsrc_type.
+ **/
+#define I40E_FIND_SD_INDEX_LIMIT(hmc_info, type, index, cnt, sd_idx, sd_limit)\
+{									\
+	u64 fpm_addr, fpm_limit;					\
+	fpm_addr = (hmc_info)->hmc_obj[(type)].base +			\
+		   (hmc_info)->hmc_obj[(type)].size * (index);		\
+	fpm_limit = fpm_addr + (hmc_info)->hmc_obj[(type)].size * (cnt);\
+	*(sd_idx) = (u32)(fpm_addr / I40E_HMC_DIRECT_BP_SIZE);		\
+	*(sd_limit) = (u32)((fpm_limit - 1) / I40E_HMC_DIRECT_BP_SIZE);	\
+	/* add one more to the limit to correct our range */		\
+	*(sd_limit) += 1;						\
+}
+
+/**
+ * I40E_FIND_PD_INDEX_LIMIT - finds page descriptor index limit
+ * @hmc_info: pointer to the HMC configuration information struct
+ * @type: HMC resource type we're examining
+ * @idx: starting index for the object
+ * @cnt: number of objects we're trying to create
+ * @pd_index: pointer to return page descriptor index
+ * @pd_limit: pointer to return page descriptor index limit
+ *
+ * Calculates the page descriptor index and index limit for the resource
+ * defined by i40e_hmc_rsrc_type.
+ **/
+#define I40E_FIND_PD_INDEX_LIMIT(hmc_info, type, idx, cnt, pd_index, pd_limit)\
+{									\
+	u64 fpm_adr, fpm_limit;						\
+	fpm_adr = (hmc_info)->hmc_obj[(type)].base +			\
+		  (hmc_info)->hmc_obj[(type)].size * (idx);		\
+	fpm_limit = fpm_adr + (hmc_info)->hmc_obj[(type)].size * (cnt);	\
+	*(pd_index) = (u32)(fpm_adr / I40E_HMC_PAGED_BP_SIZE);		\
+	*(pd_limit) = (u32)((fpm_limit - 1) / I40E_HMC_PAGED_BP_SIZE);	\
+	/* add one more to the limit to correct our range */		\
+	*(pd_limit) += 1;						\
+}
+
+int i40e_add_sd_table_entry(struct i40e_hw *hw,
+			    struct i40e_hmc_info *hmc_info,
+			    u32 sd_index,
+			    enum i40e_sd_entry_type type,
+			    u64 direct_mode_sz);
+int i40e_add_pd_table_entry(struct i40e_hw *hw,
+			    struct i40e_hmc_info *hmc_info,
+			    u32 pd_index,
+			    struct i40e_dma_mem *rsrc_pg);
+int i40e_remove_pd_bp(struct i40e_hw *hw,
+		      struct i40e_hmc_info *hmc_info,
+		      u32 idx);
+int i40e_prep_remove_sd_bp(struct i40e_hmc_info *hmc_info,
+			   u32 idx);
+int i40e_remove_sd_bp_new(struct i40e_hw *hw,
+			  struct i40e_hmc_info *hmc_info,
+			  u32 idx, bool is_pf);
+int i40e_prep_remove_pd_page(struct i40e_hmc_info *hmc_info,
+			     u32 idx);
+int i40e_remove_pd_page_new(struct i40e_hw *hw,
+			    struct i40e_hmc_info *hmc_info,
+			    u32 idx, bool is_pf);
+
+#endif /* _I40E_HMC_H_ */