Merge tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
 "Core:

   - Increase size limits for to-be-sent skb frag allocations. This
     allows tun, tap devices and packet sockets to better cope with
     large writes operations

   - Store netdevs in an xarray, to simplify iterating over netdevs

   - Refactor nexthop selection for multipath routes

   - Improve sched class lifetime handling

   - Add backup nexthop ID support for bridge

   - Implement drop reasons support in openvswitch

   - Several data races annotations and fixes

   - Constify the sk parameter of routing functions

   - Prepend kernel version to netconsole message

  Protocols:

   - Implement support for TCP probing the peer being under memory
     pressure

   - Remove hard coded limitation on IPv6 specific info placement inside
     the socket struct

   - Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated per
     socket scaling factor

   - Scaling-up the IPv6 expired route GC via a separated list of
     expiring routes

   - In-kernel support for the TLS alert protocol

   - Better support for UDP reuseport with connected sockets

   - Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR
     header size

   - Get rid of additional ancillary per MPTCP connection struct socket

   - Implement support for BPF-based MPTCP packet schedulers

   - Format MPTCP subtests selftests results in TAP

   - Several new SMC 2.1 features including unique experimental options,
     max connections per lgr negotiation, max links per lgr negotiation

  BPF:

   - Multi-buffer support in AF_XDP

   - Add multi uprobe BPF links for attaching multiple uprobes and usdt
     probes, which is significantly faster and saves extra fds

   - Implement an fd-based tc BPF attach API (TCX) and BPF link support
     on top of it

   - Add SO_REUSEPORT support for TC bpf_sk_assign

   - Support new instructions from cpu v4 to simplify the generated code
     and feature completeness, for x86, arm64, riscv64

   - Support defragmenting IPv(4|6) packets in BPF

   - Teach verifier actual bounds of bpf_get_smp_processor_id() and fix
     perf+libbpf issue related to custom section handling

   - Introduce bpf map element count and enable it for all program types

   - Add a BPF hook in sys_socket() to change the protocol ID from
     IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy

   - Introduce bpf_me_mcache_free_rcu() and fix OOM under stress

   - Add uprobe support for the bpf_get_func_ip helper

   - Check skb ownership against full socket

   - Support for up to 12 arguments in BPF trampoline

   - Extend link_info for kprobe_multi and perf_event links

  Netfilter:

   - Speed-up process exit by aborting ruleset validation if a fatal
     signal is pending

   - Allow NLA_POLICY_MASK to be used with BE16/BE32 types

  Driver API:

   - Page pool optimizations, to improve data locality and cache usage

   - Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the
     need for raw ioctl() handling in drivers

   - Simplify genetlink dump operations (doit/dumpit) providing them the
     common information already populated in struct genl_info

   - Extend and use the yaml devlink specs to [re]generate the split ops

   - Introduce devlink selective dumps, to allow SF filtering SF based
     on handle and other attributes

   - Add yaml netlink spec for netlink-raw families, allow route, link
     and address related queries via the ynl tool

   - Remove phylink legacy mode support

   - Support offload LED blinking to phy

   - Add devlink port function attributes for IPsec

  New hardware / drivers:

   - Ethernet:
      - Broadcom ASP 2.0 (72165) ethernet controller
      - MediaTek MT7988 SoC
      - Texas Instruments AM654 SoC
      - Texas Instruments IEP driver
      - Atheros qca8081 phy
      - Marvell 88Q2110 phy
      - NXP TJA1120 phy

   - WiFi:
      - MediaTek mt7981 support

   - Can:
      - Kvaser SmartFusion2 PCI Express devices
      - Allwinner T113 controllers
      - Texas Instruments tcan4552/4553 chips

   - Bluetooth:
      - Intel Gale Peak
      - Qualcomm WCN3988 and WCN7850
      - NXP AW693 and IW624
      - Mediatek MT2925

  Drivers:

   - Ethernet NICs:
      - nVidia/Mellanox:
         - mlx5:
            - support UDP encapsulation in packet offload mode
            - IPsec packet offload support in eswitch mode
            - improve aRFS observability by adding new set of counters
            - extends MACsec offload support to cover RoCE traffic
            - dynamic completion EQs
         - mlx4:
            - convert to use auxiliary bus instead of custom interface
              logic
      - Intel
         - ice:
            - implement switchdev bridge offload, even for LAG
              interfaces
            - implement SRIOV support for LAG interfaces
         - igc:
            - add support for multiple in-flight TX timestamps
      - Broadcom:
         - bnxt:
            - use the unified RX page pool buffers for XDP and non-XDP
            - use the NAPI skb allocation cache
      - OcteonTX2:
         - support Round Robin scheduling HTB offload
         - TC flower offload support for SPI field
      - Freescale:
         - add XDP_TX feature support
      - AMD:
         - ionic: add support for PCI FLR event
         - sfc:
            - basic conntrack offload
            - introduce eth, ipv4 and ipv6 pedit offloads
      - ST Microelectronics:
         - stmmac: maximze PTP timestamping resolution

   - Virtual NICs:
      - Microsoft vNIC:
         - batch ringing RX queue doorbell on receiving packets
         - add page pool for RX buffers
      - Virtio vNIC:
         - add per queue interrupt coalescing support
      - Google vNIC:
         - add queue-page-list mode support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add port range matching tc-flower offload
         - permit enslavement to netdevices with uppers

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - convert to phylink_pcs
      - Renesas:
         - r8A779fx: add speed change support
         - rzn1: enables vlan support

   - Ethernet PHYs:
      - convert mv88e6xxx to phylink_pcs

   - WiFi:
      - Qualcomm Wi-Fi 7 (ath12k):
         - extremely High Throughput (EHT) PHY support
      - RealTek (rtl8xxxu):
         - enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU),
           RTL8192EU and RTL8723BU
      - RealTek (rtw89):
         - Introduce Time Averaged SAR (TAS) support

   - Connector:
      - support for event filtering"

* tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1806 commits)
  net: ethernet: mtk_wed: minor change in wed_{tx,rx}info_show
  net: ethernet: mtk_wed: add some more info in wed_txinfo_show handler
  net: stmmac: clarify difference between "interface" and "phy_interface"
  r8152: add vendor/device ID pair for D-Link DUB-E250
  devlink: move devlink_notify_register/unregister() to dev.c
  devlink: move small_ops definition into netlink.c
  devlink: move tracepoint definitions into core.c
  devlink: push linecard related code into separate file
  devlink: push rate related code into separate file
  devlink: push trap related code into separate file
  devlink: use tracepoint_enabled() helper
  devlink: push region related code into separate file
  devlink: push param related code into separate file
  devlink: push resource related code into separate file
  devlink: push dpipe related code into separate file
  devlink: move and rename devlink_dpipe_send_and_alloc_skb() helper
  devlink: push shared buffer related code into separate file
  devlink: push port related code into separate file
  devlink: push object register/unregister notifications into separate helpers
  inet: fix IP_TRANSPARENT error handling
  ...

1 files changed, 34 insertions, 11 deletions

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_env.c b/drivers/net/ethernet/mellanox/mlxsw/core_env.c
index 0107cbc32fc7..d637c0348fa1 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_env.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_env.c
@@ -32,6 +32,7 @@ struct mlxsw_env {
 	const struct mlxsw_bus_info *bus_info;
 	u8 max_module_count; /* Maximum number of modules per-slot. */
 	u8 num_of_slots; /* Including the main board. */
+	u8 max_eeprom_len; /* Maximum module EEPROM transaction length. */
 	struct mutex line_cards_lock; /* Protects line cards. */
 	struct mlxsw_env_line_card *line_cards[];
 };
@@ -111,7 +112,7 @@ mlxsw_env_validate_cable_ident(struct mlxsw_core *core, u8 slot_index, int id,
 	if (err)
 		return err;
 
-	mlxsw_reg_mcia_pack(mcia_pl, slot_index, id, 0,
+	mlxsw_reg_mcia_pack(mcia_pl, slot_index, id,
 			    MLXSW_REG_MCIA_PAGE0_LO_OFF, 0, 1,
 			    MLXSW_REG_MCIA_I2C_ADDR_LOW);
 	err = mlxsw_reg_query(core, MLXSW_REG(mcia), mcia_pl);
@@ -146,6 +147,7 @@ mlxsw_env_query_module_eeprom(struct mlxsw_core *mlxsw_core, u8 slot_index,
 			      int module, u16 offset, u16 size, void *data,
 			      bool qsfp, unsigned int *p_read_size)
 {
+	struct mlxsw_env *mlxsw_env = mlxsw_core_env(mlxsw_core);
 	char mcia_pl[MLXSW_REG_MCIA_LEN];
 	char *eeprom_tmp;
 	u16 i2c_addr;
@@ -153,11 +155,7 @@ mlxsw_env_query_module_eeprom(struct mlxsw_core *mlxsw_core, u8 slot_index,
 	int status;
 	int err;
 
-	/* MCIA register accepts buffer size <= 48. Page of size 128 should be
-	 * read by chunks of size 48, 48, 32. Align the size of the last chunk
-	 * to avoid reading after the end of the page.
-	 */
-	size = min_t(u16, size, MLXSW_REG_MCIA_EEPROM_SIZE);
+	size = min_t(u16, size, mlxsw_env->max_eeprom_len);
 
 	if (offset < MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH &&
 	    offset + size > MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH)
@@ -188,7 +186,7 @@ mlxsw_env_query_module_eeprom(struct mlxsw_core *mlxsw_core, u8 slot_index,
 		}
 	}
 
-	mlxsw_reg_mcia_pack(mcia_pl, slot_index, module, 0, page, offset, size,
+	mlxsw_reg_mcia_pack(mcia_pl, slot_index, module, page, offset, size,
 			    i2c_addr);
 
 	err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mcia), mcia_pl);
@@ -266,12 +264,12 @@ mlxsw_env_module_temp_thresholds_get(struct mlxsw_core *core, u8 slot_index,
 			page = MLXSW_REG_MCIA_TH_PAGE_CMIS_NUM;
 		else
 			page = MLXSW_REG_MCIA_TH_PAGE_NUM;
-		mlxsw_reg_mcia_pack(mcia_pl, slot_index, module, 0, page,
+		mlxsw_reg_mcia_pack(mcia_pl, slot_index, module, page,
 				    MLXSW_REG_MCIA_TH_PAGE_OFF + off,
 				    MLXSW_REG_MCIA_TH_ITEM_SIZE,
 				    MLXSW_REG_MCIA_I2C_ADDR_LOW);
 	} else {
-		mlxsw_reg_mcia_pack(mcia_pl, slot_index, module, 0,
+		mlxsw_reg_mcia_pack(mcia_pl, slot_index, module,
 				    MLXSW_REG_MCIA_PAGE0_LO,
 				    off, MLXSW_REG_MCIA_TH_ITEM_SIZE,
 				    MLXSW_REG_MCIA_I2C_ADDR_HIGH);
@@ -489,9 +487,9 @@ mlxsw_env_get_module_eeprom_by_page(struct mlxsw_core *mlxsw_core,
 		u8 size;
 
 		size = min_t(u8, page->length - bytes_read,
-			     MLXSW_REG_MCIA_EEPROM_SIZE);
+			     mlxsw_env->max_eeprom_len);
 
-		mlxsw_reg_mcia_pack(mcia_pl, slot_index, module, 0, page->page,
+		mlxsw_reg_mcia_pack(mcia_pl, slot_index, module, page->page,
 				    device_addr + bytes_read, size,
 				    page->i2c_address);
 		mlxsw_reg_mcia_bank_number_set(mcia_pl, page->bank);
@@ -1359,6 +1357,26 @@ static struct mlxsw_linecards_event_ops mlxsw_env_event_ops = {
 	.got_inactive = mlxsw_env_got_inactive,
 };
 
+static int mlxsw_env_max_module_eeprom_len_query(struct mlxsw_env *mlxsw_env)
+{
+	char mcam_pl[MLXSW_REG_MCAM_LEN];
+	bool mcia_128b_supported;
+	int err;
+
+	mlxsw_reg_mcam_pack(mcam_pl,
+			    MLXSW_REG_MCAM_FEATURE_GROUP_ENHANCED_FEATURES);
+	err = mlxsw_reg_query(mlxsw_env->core, MLXSW_REG(mcam), mcam_pl);
+	if (err)
+		return err;
+
+	mlxsw_reg_mcam_unpack(mcam_pl, MLXSW_REG_MCAM_MCIA_128B,
+			      &mcia_128b_supported);
+
+	mlxsw_env->max_eeprom_len = mcia_128b_supported ? 128 : 48;
+
+	return 0;
+}
+
 int mlxsw_env_init(struct mlxsw_core *mlxsw_core,
 		   const struct mlxsw_bus_info *bus_info,
 		   struct mlxsw_env **p_env)
@@ -1427,10 +1445,15 @@ int mlxsw_env_init(struct mlxsw_core *mlxsw_core,
 	if (err)
 		goto err_type_set;
 
+	err = mlxsw_env_max_module_eeprom_len_query(env);
+	if (err)
+		goto err_eeprom_len_query;
+
 	env->line_cards[0]->active = true;
 
 	return 0;
 
+err_eeprom_len_query:
 err_type_set:
 	mlxsw_env_module_event_disable(env, 0);
 err_mlxsw_env_module_event_enable: