Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextHEADmaster

Pull networking updates from Jakub Kicinski:
 "Not much excitement - a handful of large patchsets (devmem among them)
  did not make it in time.

  Core & protocols:

   - Use local_lock in addition to local_bh_disable() to protect per-CPU
     resources in networking, a step closer for local_bh_disable() not
     to act as a big lock on PREEMPT_RT

   - Use flex array for netdevice priv area, ensure its cache alignment

   - Add a sysctl knob to allow user to specify a default rto_min at
     socket init time. Bit of a big hammer but multiple companies were
     independently carrying such patch downstream so clearly it's useful

   - Support scheduling transmission of packets based on CLOCK_TAI

   - Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned
     off using cpusets

   - Support multiple L2TPv3 UDP tunnels using the same 5-tuple address

   - Allow configuration of multipath hash seed, to both allow
     synchronizing hashing of two routers, and preventing partial
     accidental sync

   - Improve TCP compliance with RFC 9293 for simultaneous connect()

   - Support sending NAT keepalives in IPsec ESP in UDP states.
     Userspace IKE daemon had to do this before, but the kernel can
     better keep track of it

   - Support sending supervision HSR frames with MAC addresses stored in
     ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled

   - Introduce IPPROTO_SMC for selecting SMC when socket is created

   - Allow UDP GSO transmit from devices with no checksum offload

   - openvswitch: add packet sampling via psample, separating the
     sampled traffic from "upcall" packets sent to user space for
     forwarding

   - nf_tables: shrink memory consumption for transaction objects

  Things we sprinkled into general kernel code:

   - Power Sequencing subsystem (used by Qualcomm Bluetooth driver for
     QCA6390)           [ Already merged separately - Linus ]

   - Add IRQ information in sysfs for auxiliary bus

   - Introduce guard definition for local_lock

   - Add aligned flavor of __cacheline_group_{begin, end}() markings for
     grouping fields in structures

  BPF:

   - Notify user space (via epoll) when a struct_ops object is getting
     detached/unregistered

   - Add new kfuncs for a generic, open-coded bits iterator

   - Enable BPF programs to declare arrays of kptr, bpf_rb_root, and
     bpf_list_head

   - Support resilient split BTF which cuts down on duplication and
     makes BTF as compact as possible WRT BTF from modules

   - Add support for dumping kfunc prototypes from BTF which enables
     both detecting as well as dumping compilable prototypes for kfuncs

   - riscv64 BPF JIT improvements in particular to add 12-argument
     support for BPF trampolines and to utilize bpf_prog_pack for the
     latter

   - Add the capability to offload the netfilter flowtable in XDP layer
     through kfuncs

  Driver API:

   - Allow users to configure IRQ tresholds between which automatic IRQ
     moderation can choose

   - Expand Power Sourcing (PoE) status with power, class and failure
     reason. Support setting power limits

   - Track additional RSS contexts in the core, make sure configuration
     changes don't break them

   - Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated
     ESP data paths

   - Support updating firmware on SFP modules

  Tests and tooling:

   - mptcp: use net/lib.sh to manage netns

   - TCP-AO and TCP-MD5: replace debug prints used by tests with
     tracepoints

   - openvswitch: make test self-contained (don't depend on OvS CLI
     tools)

  Drivers:

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - increase the max total outstanding PTP TX packets to 4
         - add timestamping statistics support
         - implement netdev_queue_mgmt_ops
         - support new RSS context API
      - Intel (100G, ice, idpf):
         - implement FEC statistics and dumping signal quality indicators
         - support E825C products (with 56Gbps PHYs)
      - nVidia/Mellanox:
         - support HW-GRO
         - mlx4/mlx5: support per-queue statistics via netlink
         - obey the max number of EQs setting in sub-functions
      - AMD/Solarflare:
         - support new RSS context API
      - AMD/Pensando:
         - ionic: rework fix for doorbell miss to lower overhead and
           skip it on new HW
      - Wangxun:
         - txgbe: support Flow Director perfect filters

   - Ethernet NICs consumer, embedded and virtual:
      - Add driver for Tehuti Networks TN40xx chips
      - Add driver for Meta's internal NIC chips
      - Add driver for Ethernet MAC on Airoha EN7581 SoCs
      - Add driver for Renesas Ethernet-TSN devices
      - Google cloud vNIC:
         - flow steering support
      - Microsoft vNIC:
         - support page sizes other than 4KB on ARM64
      - vmware vNIC:
         - support latency measurement (update to version 9)
      - VirtIO net:
         - support for Byte Queue Limits
         - support configuring thresholds for automatic IRQ moderation
         - support for AF_XDP Rx zero-copy
      - Synopsys (stmmac):
         - support for STM32MP13 SoC
         - let platforms select the right PCS implementation
      - TI:
         - icssg-prueth: add multicast filtering support
         - icssg-prueth: enable PTP timestamping and PPS
      - Renesas:
         - ravb: improve Rx performance 30-400% by using page pool,
           theaded NAPI and timer-based IRQ coalescing
         - ravb: add MII support for R-Car V4M
      - Cadence (macb):
         - macb: add ARP support to Wake-On-LAN
      - Cortina:
         - use phylib for RX and TX pause configuration

   - Ethernet switches:
      - nVidia/Mellanox:
         - support configuration of multipath hash seed
         - report more accurate max MTU
         - use page_pool to improve Rx performance
      - MediaTek:
         - mt7530: add support for bridge port isolation
      - Qualcomm:
         - qca8k: add support for bridge port isolation
      - Microchip:
         - lan9371/2: add 100BaseTX PHY support
      - NXP:
         - vsc73xx: implement VLAN operations

   - Ethernet PHYs:
      - aquantia: enable support for aqr115c
      - aquantia: add support for PHY LEDs
      - realtek: add support for rtl8224 2.5Gbps PHY
      - xpcs: add memory-mapped device support
      - add BroadR-Reach link mode and support in Broadcom's PHY driver

   - CAN:
      - add document for ISO 15765-2 protocol support
      - mcp251xfd: workaround for erratum DS80000789E, use timestamps to
        catch when device returns incorrect FIFO status

   - WiFi:
      - mac80211/cfg80211:
         - parse Transmit Power Envelope (TPE) data in mac80211 instead
           of in drivers
         - improvements for 6 GHz regulatory flexibility
         - multi-link improvements
         - support multiple radios per wiphy
         - remove DEAUTH_NEED_MGD_TX_PREP flag
      - Intel (iwlwifi):
         - bump FW API to 91 for BZ/SC devices
         - report 64-bit radiotap timestamp
         - enable P2P low latency by default
         - handle Transmit Power Envelope (TPE) advertised by AP
         - remove support for older FW for new devices
         - fast resume (keeping the device configured)
         - mvm: re-enable Multi-Link Operation (MLO)
         - aggregation (A-MSDU) optimizations
      - MediaTek (mt76):
         - mt7925 Multi-Link Operation (MLO) support
      - Qualcomm (ath10k):
         - LED support for various chipsets
      - Qualcomm (ath12k):
         - remove unsupported Tx monitor handling
         - support channel 2 in 6 GHz band
         - support Spatial Multiplexing Power Save (SMPS) in 6 GHz band
         - supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID
           Advertisements (EMA)
         - support dynamic VLAN
         - add panic handler for resetting the firmware state
         - DebugFS support for datapath statistics
         - WCN7850: support for Wake on WLAN
      - Microchip (wilc1000):
         - read MAC address during probe to make it visible to user space
         - suspend/resume improvements
      - TI (wl18xx):
         - support newer firmware versions
      - RealTek (rtw89):
         - preparation for RTL8852BE-VT support
         - Wake on WLAN support for WiFi 6 chips
         - 36-bit PCI DMA support
      - RealTek (rtlwifi):
         - RTL8192DU support
      - Broadcom (brcmfmac):
         - Management Frame Protection support (to enable WPA3)

   - Bluetooth:
      - qualcomm: use the power sequencer for QCA6390
      - btusb: mediatek: add ISO data transmission functions
      - hci_bcm4377: add BCM4388 support
      - btintel: add support for BlazarU core
      - btintel: add support for Whale Peak2
      - btnxpuart: add support for AW693 A1 chipset
      - btnxpuart: add support for IW615 chipset
      - btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591"

* tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1589 commits)
  eth: fbnic: Fix spelling mistake "tiggerring" -> "triggering"
  tcp: Replace strncpy() with strscpy()
  wifi: ath12k: fix build vs old compiler
  tcp: Don't access uninit tcp_rsk(req)->ao_keyid in tcp_create_openreq_child().
  eth: fbnic: Write the TCAM tables used for RSS control and Rx to host
  eth: fbnic: Add L2 address programming
  eth: fbnic: Add basic Rx handling
  eth: fbnic: Add basic Tx handling
  eth: fbnic: Add link detection
  eth: fbnic: Add initial messaging to notify FW of our presence
  eth: fbnic: Implement Rx queue alloc/start/stop/free
  eth: fbnic: Implement Tx queue alloc/start/stop/free
  eth: fbnic: Allocate a netdevice and napi vectors with queues
  eth: fbnic: Add FW communication mechanism
  eth: fbnic: Add message parsing for FW messages
  eth: fbnic: Add register init to set PCIe/Ethernet device config
  eth: fbnic: Allocate core device specific structures and devlink interface
  eth: fbnic: Add scaffolding for Meta's NIC driver
  PCI: Add Meta Platforms vendor ID
  net/sched: cls_flower: propagate tca[TCA_OPTIONS] to NL_REQ_ATTR_CHECK
  ...

1 files changed, 189 insertions, 0 deletions

diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_rpc.h b/drivers/net/ethernet/meta/fbnic/fbnic_rpc.h
new file mode 100644
index 000000000000..d62935f722a2
--- /dev/null
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_rpc.h
@@ -0,0 +1,189 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#ifndef _FBNIC_RPC_H_
+#define _FBNIC_RPC_H_
+
+#include <uapi/linux/in6.h>
+#include <linux/bitfield.h>
+
+/*  The TCAM state definitions follow an expected ordering.
+ *  They start out disabled, then move through the following states:
+ *  Disabled  0	-> Add	      2
+ *  Add	      2	-> Valid      1
+ *
+ *  Valid     1	-> Add/Update 2
+ *  Add	      2	-> Valid      1
+ *
+ *  Valid     1	-> Delete     3
+ *  Delete    3	-> Disabled   0
+ */
+enum {
+	FBNIC_TCAM_S_DISABLED	= 0,
+	FBNIC_TCAM_S_VALID	= 1,
+	FBNIC_TCAM_S_ADD	= 2,
+	FBNIC_TCAM_S_UPDATE	= FBNIC_TCAM_S_ADD,
+	FBNIC_TCAM_S_DELETE	= 3,
+};
+
+/* 32 MAC Destination Address TCAM Entries
+ * 4 registers DA[1:0], DA[3:2], DA[5:4], Validate
+ */
+#define FBNIC_RPC_TCAM_MACDA_WORD_LEN		3
+#define FBNIC_RPC_TCAM_MACDA_NUM_ENTRIES	32
+
+#define FBNIC_RPC_TCAM_ACT_WORD_LEN		11
+#define FBNIC_RPC_TCAM_ACT_NUM_ENTRIES		64
+
+struct fbnic_mac_addr {
+	union {
+		unsigned char addr8[ETH_ALEN];
+		__be16 addr16[FBNIC_RPC_TCAM_MACDA_WORD_LEN];
+	} mask, value;
+	unsigned char state;
+	DECLARE_BITMAP(act_tcam, FBNIC_RPC_TCAM_ACT_NUM_ENTRIES);
+};
+
+struct fbnic_act_tcam {
+	struct {
+		u16 tcam[FBNIC_RPC_TCAM_ACT_WORD_LEN];
+	} mask, value;
+	unsigned char state;
+	u16 rss_en_mask;
+	u32 dest;
+};
+
+enum {
+	FBNIC_RSS_EN_HOST_UDP6,
+	FBNIC_RSS_EN_HOST_UDP4,
+	FBNIC_RSS_EN_HOST_TCP6,
+	FBNIC_RSS_EN_HOST_TCP4,
+	FBNIC_RSS_EN_HOST_IP6,
+	FBNIC_RSS_EN_HOST_IP4,
+	FBNIC_RSS_EN_HOST_ETHER,
+	FBNIC_RSS_EN_XCAST_UDP6,
+#define FBNIC_RSS_EN_NUM_UNICAST FBNIC_RSS_EN_XCAST_UDP6
+	FBNIC_RSS_EN_XCAST_UDP4,
+	FBNIC_RSS_EN_XCAST_TCP6,
+	FBNIC_RSS_EN_XCAST_TCP4,
+	FBNIC_RSS_EN_XCAST_IP6,
+	FBNIC_RSS_EN_XCAST_IP4,
+	FBNIC_RSS_EN_XCAST_ETHER,
+	FBNIC_RSS_EN_NUM_ENTRIES
+};
+
+/* Reserve the first 2 entries for the use by the BMC so that we can
+ * avoid allowing rules to get in the way of BMC unicast traffic.
+ */
+#define FBNIC_RPC_ACT_TBL_BMC_OFFSET		0
+#define FBNIC_RPC_ACT_TBL_BMC_ALL_MULTI_OFFSET	1
+
+/* We reserve the last 14 entries for RSS rules on the host. The BMC
+ * unicast rule will need to be populated above these and is expected to
+ * use MACDA TCAM entry 23 to store the BMC MAC address.
+ */
+#define FBNIC_RPC_ACT_TBL_RSS_OFFSET \
+	(FBNIC_RPC_ACT_TBL_NUM_ENTRIES - FBNIC_RSS_EN_NUM_ENTRIES)
+
+/* Flags used to identify the owner for this MAC filter. Note that any
+ * flags set for Broadcast thru Promisc indicate that the rule belongs
+ * to the RSS filters for the host.
+ */
+enum {
+	FBNIC_MAC_ADDR_T_BMC            = 0,
+	FBNIC_MAC_ADDR_T_BROADCAST	= FBNIC_RPC_ACT_TBL_RSS_OFFSET,
+#define FBNIC_MAC_ADDR_T_HOST_START	FBNIC_MAC_ADDR_T_BROADCAST
+	FBNIC_MAC_ADDR_T_MULTICAST,
+	FBNIC_MAC_ADDR_T_UNICAST,
+	FBNIC_MAC_ADDR_T_ALLMULTI,	/* BROADCAST ... MULTICAST*/
+	FBNIC_MAC_ADDR_T_PROMISC,	/* BROADCAST ... UNICAST */
+	FBNIC_MAC_ADDR_T_HOST_LAST
+};
+
+#define FBNIC_MAC_ADDR_T_HOST_LEN \
+	(FBNIC_MAC_ADDR_T_HOST_LAST - FBNIC_MAC_ADDR_T_HOST_START)
+
+#define FBNIC_RPC_TCAM_ACT0_IPSRC_IDX		CSR_GENMASK(2, 0)
+#define FBNIC_RPC_TCAM_ACT0_IPSRC_VALID		CSR_BIT(3)
+#define FBNIC_RPC_TCAM_ACT0_IPDST_IDX		CSR_GENMASK(6, 4)
+#define FBNIC_RPC_TCAM_ACT0_IPDST_VALID		CSR_BIT(7)
+#define FBNIC_RPC_TCAM_ACT0_OUTER_IPSRC_IDX	CSR_GENMASK(10, 8)
+#define FBNIC_RPC_TCAM_ACT0_OUTER_IPSRC_VALID	CSR_BIT(11)
+#define FBNIC_RPC_TCAM_ACT0_OUTER_IPDST_IDX	CSR_GENMASK(14, 12)
+#define FBNIC_RPC_TCAM_ACT0_OUTER_IPDST_VALID	CSR_BIT(15)
+
+#define FBNIC_RPC_TCAM_ACT1_L2_MACDA_IDX	CSR_GENMASK(9, 5)
+#define FBNIC_RPC_TCAM_ACT1_L2_MACDA_VALID	CSR_BIT(10)
+#define FBNIC_RPC_TCAM_ACT1_IP_IS_V6		CSR_BIT(11)
+#define FBNIC_RPC_TCAM_ACT1_IP_VALID		CSR_BIT(12)
+#define FBNIC_RPC_TCAM_ACT1_OUTER_IP_VALID	CSR_BIT(13)
+#define FBNIC_RPC_TCAM_ACT1_L4_IS_UDP		CSR_BIT(14)
+#define FBNIC_RPC_TCAM_ACT1_L4_VALID		CSR_BIT(15)
+
+/* TCAM 0 - 3 reserved for BMC MAC addresses */
+#define FBNIC_RPC_TCAM_MACDA_BMC_ADDR_IDX	0
+/* TCAM 4 reserved for broadcast MAC address */
+#define FBNIC_RPC_TCAM_MACDA_BROADCAST_IDX	4
+/* TCAMs 5 - 30 will be used for multicast and unicast addresses. The
+ * boundary between the two can be variable it is currently set to 24
+ * on which the unicast addresses start. The general idea is that we will
+ * always go top-down with unicast, and bottom-up with multicast so that
+ * there should be free-space in the middle between the two.
+ *
+ * The entry at MADCA_DEFAULT_BOUNDARY is a special case as it can be used
+ * for the ALL MULTI address if the list is full, or the BMC has requested
+ * it.
+ */
+#define FBNIC_RPC_TCAM_MACDA_MULTICAST_IDX	5
+#define FBNIC_RPC_TCAM_MACDA_DEFAULT_BOUNDARY	24
+#define FBNIC_RPC_TCAM_MACDA_HOST_ADDR_IDX	30
+/* Reserved for use to record Multicast promisc, or Promiscuous */
+#define FBNIC_RPC_TCAM_MACDA_PROMISC_IDX	31
+
+enum {
+	FBNIC_UDP6_HASH_OPT,
+	FBNIC_UDP4_HASH_OPT,
+	FBNIC_TCP6_HASH_OPT,
+	FBNIC_TCP4_HASH_OPT,
+#define FBNIC_L4_HASH_OPT FBNIC_TCP4_HASH_OPT
+	FBNIC_IPV6_HASH_OPT,
+	FBNIC_IPV4_HASH_OPT,
+#define FBNIC_IP_HASH_OPT FBNIC_IPV4_HASH_OPT
+	FBNIC_ETHER_HASH_OPT,
+	FBNIC_NUM_HASH_OPT,
+};
+
+struct fbnic_dev;
+struct fbnic_net;
+
+void fbnic_bmc_rpc_init(struct fbnic_dev *fbd);
+void fbnic_bmc_rpc_all_multi_config(struct fbnic_dev *fbd, bool enable_host);
+
+void fbnic_reset_indir_tbl(struct fbnic_net *fbn);
+void fbnic_rss_key_fill(u32 *buffer);
+void fbnic_rss_init_en_mask(struct fbnic_net *fbn);
+void fbnic_rss_disable_hw(struct fbnic_dev *fbd);
+void fbnic_rss_reinit_hw(struct fbnic_dev *fbd, struct fbnic_net *fbn);
+void fbnic_rss_reinit(struct fbnic_dev *fbd, struct fbnic_net *fbn);
+
+int __fbnic_xc_unsync(struct fbnic_mac_addr *mac_addr, unsigned int tcam_idx);
+struct fbnic_mac_addr *__fbnic_uc_sync(struct fbnic_dev *fbd,
+				       const unsigned char *addr);
+struct fbnic_mac_addr *__fbnic_mc_sync(struct fbnic_dev *fbd,
+				       const unsigned char *addr);
+void fbnic_sift_macda(struct fbnic_dev *fbd);
+void fbnic_write_macda(struct fbnic_dev *fbd);
+
+static inline int __fbnic_uc_unsync(struct fbnic_mac_addr *mac_addr)
+{
+	return __fbnic_xc_unsync(mac_addr, FBNIC_MAC_ADDR_T_UNICAST);
+}
+
+static inline int __fbnic_mc_unsync(struct fbnic_mac_addr *mac_addr)
+{
+	return __fbnic_xc_unsync(mac_addr, FBNIC_MAC_ADDR_T_MULTICAST);
+}
+
+void fbnic_clear_rules(struct fbnic_dev *fbd);
+void fbnic_write_rules(struct fbnic_dev *fbd);
+#endif /* _FBNIC_RPC_H_ */