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Networking changes for 6.0.

Browse source 
Core
 ----
 
  - Refactor the forward memory allocation to better cope with memory
    pressure with many open sockets, moving from a per socket cache to
    a per-CPU one
 
  - Replace rwlocks with RCU for better fairness in ping, raw sockets
    and IP multicast router.
 
  - Network-side support for IO uring zero-copy send.
 
  - A few skb drop reason improvements, including codegen the source file
    with string mapping instead of using macro magic.
 
  - Rename reference tracking helpers to a more consistent
    netdev_* schema.
 
  - Adapt u64_stats_t type to address load/store tearing issues.
 
  - Refine debug helper usage to reduce the log noise caused by bots.
 
 BPF
 ---
  - Improve socket map performance, avoiding skb cloning on read
    operation.
 
  - Add support for 64 bits enum, to match types exposed by kernel.
 
  - Introduce support for sleepable uprobes program.
 
  - Introduce support for enum textual representation in libbpf.
 
  - New helpers to implement synproxy with eBPF/XDP.
 
  - Improve loop performances, inlining indirect calls when
    possible.
 
  - Removed all the deprecated libbpf APIs.
 
  - Implement new eBPF-based LSM flavor.
 
  - Add type match support, which allow accurate queries to the
    eBPF used types.
 
  - A few TCP congetsion control framework usability improvements.
 
  - Add new infrastructure to manipulate CT entries via eBPF programs.
 
  - Allow for livepatch (KLP) and BPF trampolines to attach to the same
    kernel function.
 
 Protocols
 ---------
 
  - Introduce per network namespace lookup tables for unix sockets,
    increasing scalability and reducing contention.
 
  - Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support.
 
  - Add support to forciby close TIME_WAIT TCP sockets via user-space
    tools.
 
  - Significant performance improvement for the TLS 1.3 receive path,
    both for zero-copy and not-zero-copy.
 
  - Support for changing the initial MTPCP subflow priority/backup
    status
 
  - Introduce virtually contingus buffers for sockets over RDMA,
    to cope better with memory pressure.
 
  - Extend CAN ethtool support with timestamping capabilities
 
  - Refactor CAN build infrastructure to allow building only the needed
    features.
 
 Driver API
 ----------
 
  - Remove devlink mutex to allow parallel commands on multiple links.
 
  - Add support for pause stats in distributed switch.
 
  - Implement devlink helpers to query and flash line cards.
 
  - New helper for phy mode to register conversion.
 
 New hardware / drivers
 ----------------------
 
  - Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro.
 
  - Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch.
 
  - Ethernet DSA driver for the Microchip LAN937x switch.
 
  - Ethernet PHY driver for the Aquantia AQR113C EPHY.
 
  - CAN driver for the OBD-II ELM327 interface.
 
  - CAN driver for RZ/N1 SJA1000 CAN controller.
 
  - Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device.
 
 Drivers
 -------
 
  - Intel Ethernet NICs:
    - i40e: add support for vlan pruning
    - i40e: add support for XDP framented packets
    - ice: improved vlan offload support
    - ice: add support for PPPoE offload
 
  - Mellanox Ethernet (mlx5)
    - refactor packet steering offload for performance and scalability
    - extend support for TC offload
    - refactor devlink code to clean-up the locking schema
    - support stacked vlans for bridge offloads
    - use TLS objects pool to improve connection rate
 
  - Netronome Ethernet NICs (nfp):
    - extend support for IPv6 fields mangling offload
    - add support for vepa mode in HW bridge
    - better support for virtio data path acceleration (VDPA)
    - enable TSO by default
 
  - Microsoft vNIC driver (mana)
    - add support for XDP redirect
 
  - Others Ethernet drivers:
    - bonding: add per-port priority support
    - microchip lan743x: extend phy support
    - Fungible funeth: support UDP segmentation offload and XDP xmit
    - Solarflare EF100: add support for virtual function representors
    - MediaTek SoC: add XDP support
 
  - Mellanox Ethernet/IB switch (mlxsw):
    - dropped support for unreleased H/W (XM router).
    - improved stats accuracy
    - unified bridge model coversion improving scalability
      (parts 1-6)
    - support for PTP in Spectrum-2 asics
 
  - Broadcom PHYs
    - add PTP support for BCM54210E
    - add support for the BCM53128 internal PHY
 
  - Marvell Ethernet switches (prestera):
    - implement support for multicast forwarding offload
 
  - Embedded Ethernet switches:
    - refactor OcteonTx MAC filter for better scalability
    - improve TC H/W offload for the Felix driver
    - refactor the Microchip ksz8 and ksz9477 drivers to share
      the probe code (parts 1, 2), add support for phylink
      mac configuration
 
  - Other WiFi:
    - Microchip wilc1000: diable WEP support and enable WPA3
    - Atheros ath10k: encapsulation offload support
 
 Old code removal:
 
  - Neterion vxge ethernet driver: this is untouched since more than
    10 years.
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking changes from Paolo Abeni:
 "Core:

   - Refactor the forward memory allocation to better cope with memory
     pressure with many open sockets, moving from a per socket cache to
     a per-CPU one

   - Replace rwlocks with RCU for better fairness in ping, raw sockets
     and IP multicast router.

   - Network-side support for IO uring zero-copy send.

   - A few skb drop reason improvements, including codegen the source
     file with string mapping instead of using macro magic.

   - Rename reference tracking helpers to a more consistent netdev_*
     schema.

   - Adapt u64_stats_t type to address load/store tearing issues.

   - Refine debug helper usage to reduce the log noise caused by bots.

  BPF:

   - Improve socket map performance, avoiding skb cloning on read
     operation.

   - Add support for 64 bits enum, to match types exposed by kernel.

   - Introduce support for sleepable uprobes program.

   - Introduce support for enum textual representation in libbpf.

   - New helpers to implement synproxy with eBPF/XDP.

   - Improve loop performances, inlining indirect calls when possible.

   - Removed all the deprecated libbpf APIs.

   - Implement new eBPF-based LSM flavor.

   - Add type match support, which allow accurate queries to the eBPF
     used types.

   - A few TCP congetsion control framework usability improvements.

   - Add new infrastructure to manipulate CT entries via eBPF programs.

   - Allow for livepatch (KLP) and BPF trampolines to attach to the same
     kernel function.

  Protocols:

   - Introduce per network namespace lookup tables for unix sockets,
     increasing scalability and reducing contention.

   - Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support.

   - Add support to forciby close TIME_WAIT TCP sockets via user-space
     tools.

   - Significant performance improvement for the TLS 1.3 receive path,
     both for zero-copy and not-zero-copy.

   - Support for changing the initial MTPCP subflow priority/backup
     status

   - Introduce virtually contingus buffers for sockets over RDMA, to
     cope better with memory pressure.

   - Extend CAN ethtool support with timestamping capabilities

   - Refactor CAN build infrastructure to allow building only the needed
     features.

  Driver API:

   - Remove devlink mutex to allow parallel commands on multiple links.

   - Add support for pause stats in distributed switch.

   - Implement devlink helpers to query and flash line cards.

   - New helper for phy mode to register conversion.

  New hardware / drivers:

   - Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro.

   - Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch.

   - Ethernet DSA driver for the Microchip LAN937x switch.

   - Ethernet PHY driver for the Aquantia AQR113C EPHY.

   - CAN driver for the OBD-II ELM327 interface.

   - CAN driver for RZ/N1 SJA1000 CAN controller.

   - Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device.

  Drivers:

   - Intel Ethernet NICs:
      - i40e: add support for vlan pruning
      - i40e: add support for XDP framented packets
      - ice: improved vlan offload support
      - ice: add support for PPPoE offload

   - Mellanox Ethernet (mlx5)
      - refactor packet steering offload for performance and scalability
      - extend support for TC offload
      - refactor devlink code to clean-up the locking schema
      - support stacked vlans for bridge offloads
      - use TLS objects pool to improve connection rate

   - Netronome Ethernet NICs (nfp):
      - extend support for IPv6 fields mangling offload
      - add support for vepa mode in HW bridge
      - better support for virtio data path acceleration (VDPA)
      - enable TSO by default

   - Microsoft vNIC driver (mana)
      - add support for XDP redirect

   - Others Ethernet drivers:
      - bonding: add per-port priority support
      - microchip lan743x: extend phy support
      - Fungible funeth: support UDP segmentation offload and XDP xmit
      - Solarflare EF100: add support for virtual function representors
      - MediaTek SoC: add XDP support

   - Mellanox Ethernet/IB switch (mlxsw):
      - dropped support for unreleased H/W (XM router).
      - improved stats accuracy
      - unified bridge model coversion improving scalability (parts 1-6)
      - support for PTP in Spectrum-2 asics

   - Broadcom PHYs
      - add PTP support for BCM54210E
      - add support for the BCM53128 internal PHY

   - Marvell Ethernet switches (prestera):
      - implement support for multicast forwarding offload

   - Embedded Ethernet switches:
      - refactor OcteonTx MAC filter for better scalability
      - improve TC H/W offload for the Felix driver
      - refactor the Microchip ksz8 and ksz9477 drivers to share the
        probe code (parts 1, 2), add support for phylink mac
        configuration

   - Other WiFi:
      - Microchip wilc1000: diable WEP support and enable WPA3
      - Atheros ath10k: encapsulation offload support

  Old code removal:

   - Neterion vxge ethernet driver: this is untouched since more than 10 years"

* tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1890 commits)
  doc: sfp-phylink: Fix a broken reference
  wireguard: selftests: support UML
  wireguard: allowedips: don't corrupt stack when detecting overflow
  wireguard: selftests: update config fragments
  wireguard: ratelimiter: use hrtimer in selftest
  net/mlx5e: xsk: Discard unaligned XSK frames on striding RQ
  net: usb: ax88179_178a: Bind only to vendor-specific interface
  selftests: net: fix IOAM test skip return code
  net: usb: make USB_RTL8153_ECM non user configurable
  net: marvell: prestera: remove reduntant code
  octeontx2-pf: Reduce minimum mtu size to 60
  net: devlink: Fix missing mutex_unlock() call
  net/tls: Remove redundant workqueue flush before destroy
  net: txgbe: Fix an error handling path in txgbe_probe()
  net: dsa: Fix spelling mistakes and cleanup code
  Documentation: devlink: add add devlink-selftests to the table of contents
  dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock
  net: ionic: fix error check for vlan flags in ionic_set_nic_features()
  net: ice: fix error NETIF_F_HW_VLAN_CTAG_FILTER check in ice_vsi_sync_fltr()
  nfp: flower: add support for tunnel offload without key ID
  ...
This commit is contained in:
Linus Torvalds 2022-08-03 16:29:08 -07:00
commit f86d1fbbe7
1753 changed files with 93378 additions and 64340 deletions
Download patch file Download diff file Expand all files Collapse all files

96
tools/include/uapi/linux/bpf.h
View file

@ -998,6 +998,7 @@ enum bpf_attach_type {
BPF_SK_REUSEPORT_SELECT_OR_MIGRATE,
BPF_PERF_EVENT,
BPF_TRACE_KPROBE_MULTI,
BPF_LSM_CGROUP,
__MAX_BPF_ATTACH_TYPE
};
@ -1431,6 +1432,7 @@ union bpf_attr {
__u32 attach_flags;
__aligned_u64 prog_ids;
__u32 prog_cnt;
__aligned_u64 prog_attach_flags; /* output: per-program attach_flags */
} query;
struct { /* anonymous struct used by BPF_RAW_TRACEPOINT_OPEN command */
@ -2359,7 +2361,8 @@ union bpf_attr {
* Pull in non-linear data in case the *skb* is non-linear and not
* all of *len* are part of the linear section. Make *len* bytes
* from *skb* readable and writable. If a zero value is passed for
* *len*, then the whole length of the *skb* is pulled.
* *len*, then all bytes in the linear part of *skb* will be made
* readable and writable.
*
* This helper is only needed for reading and writing with direct
* packet access.
@ -3597,10 +3600,11 @@ union bpf_attr {
*
* *iph* points to the start of the IPv4 or IPv6 header, while
* *iph_len* contains **sizeof**\ (**struct iphdr**) or
* **sizeof**\ (**struct ip6hdr**).
* **sizeof**\ (**struct ipv6hdr**).
*
* *th* points to the start of the TCP header, while *th_len*
* contains **sizeof**\ (**struct tcphdr**).
* contains the length of the TCP header (at least
* **sizeof**\ (**struct tcphdr**)).
* Return
* 0 if *iph* and *th* are a valid SYN cookie ACK, or a negative
* error otherwise.
@ -3783,10 +3787,11 @@ union bpf_attr {
*
* *iph* points to the start of the IPv4 or IPv6 header, while
* *iph_len* contains **sizeof**\ (**struct iphdr**) or
* **sizeof**\ (**struct ip6hdr**).
* **sizeof**\ (**struct ipv6hdr**).
*
* *th* points to the start of the TCP header, while *th_len*
* contains the length of the TCP header.
* contains the length of the TCP header with options (at least
* **sizeof**\ (**struct tcphdr**)).
* Return
* On success, lower 32 bits hold the generated SYN cookie in
* followed by 16 bits which hold the MSS value for that cookie,
@ -5252,6 +5257,80 @@ union bpf_attr {
* Pointer to the underlying dynptr data, NULL if the dynptr is
* read-only, if the dynptr is invalid, or if the offset and length
* is out of bounds.
*
* s64 bpf_tcp_raw_gen_syncookie_ipv4(struct iphdr *iph, struct tcphdr *th, u32 th_len)
* Description
* Try to issue a SYN cookie for the packet with corresponding
* IPv4/TCP headers, *iph* and *th*, without depending on a
* listening socket.
*
* *iph* points to the IPv4 header.
*
* *th* points to the start of the TCP header, while *th_len*
* contains the length of the TCP header (at least
* **sizeof**\ (**struct tcphdr**)).
* Return
* On success, lower 32 bits hold the generated SYN cookie in
* followed by 16 bits which hold the MSS value for that cookie,
* and the top 16 bits are unused.
*
* On failure, the returned value is one of the following:
*
* **-EINVAL** if *th_len* is invalid.
*
* s64 bpf_tcp_raw_gen_syncookie_ipv6(struct ipv6hdr *iph, struct tcphdr *th, u32 th_len)
* Description
* Try to issue a SYN cookie for the packet with corresponding
* IPv6/TCP headers, *iph* and *th*, without depending on a
* listening socket.
*
* *iph* points to the IPv6 header.
*
* *th* points to the start of the TCP header, while *th_len*
* contains the length of the TCP header (at least
* **sizeof**\ (**struct tcphdr**)).
* Return
* On success, lower 32 bits hold the generated SYN cookie in
* followed by 16 bits which hold the MSS value for that cookie,
* and the top 16 bits are unused.
*
* On failure, the returned value is one of the following:
*
* **-EINVAL** if *th_len* is invalid.
*
* **-EPROTONOSUPPORT** if CONFIG_IPV6 is not builtin.
*
* long bpf_tcp_raw_check_syncookie_ipv4(struct iphdr *iph, struct tcphdr *th)
* Description
* Check whether *iph* and *th* contain a valid SYN cookie ACK
* without depending on a listening socket.
*
* *iph* points to the IPv4 header.
*
* *th* points to the TCP header.
* Return
* 0 if *iph* and *th* are a valid SYN cookie ACK.
*
* On failure, the returned value is one of the following:
*
* **-EACCES** if the SYN cookie is not valid.
*
* long bpf_tcp_raw_check_syncookie_ipv6(struct ipv6hdr *iph, struct tcphdr *th)
* Description
* Check whether *iph* and *th* contain a valid SYN cookie ACK
* without depending on a listening socket.
*
* *iph* points to the IPv6 header.
*
* *th* points to the TCP header.
* Return
* 0 if *iph* and *th* are a valid SYN cookie ACK.
*
* On failure, the returned value is one of the following:
*
* **-EACCES** if the SYN cookie is not valid.
*
* **-EPROTONOSUPPORT** if CONFIG_IPV6 is not builtin.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
@ -5458,6 +5537,10 @@ union bpf_attr {
FN(dynptr_read), \
FN(dynptr_write), \
FN(dynptr_data), \
FN(tcp_raw_gen_syncookie_ipv4), \
FN(tcp_raw_gen_syncookie_ipv6), \
FN(tcp_raw_check_syncookie_ipv4), \
FN(tcp_raw_check_syncookie_ipv6), \
/* */
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
@ -5998,6 +6081,8 @@ struct bpf_prog_info {
__u64 run_cnt;
__u64 recursion_misses;
__u32 verified_insns;
__u32 attach_btf_obj_id;
__u32 attach_btf_id;
} __attribute__((aligned(8)));
struct bpf_map_info {
@ -6705,6 +6790,7 @@ enum bpf_core_relo_kind {
BPF_CORE_TYPE_SIZE = 9, /* type size in bytes */
BPF_CORE_ENUMVAL_EXISTS = 10, /* enum value existence in target kernel */
BPF_CORE_ENUMVAL_VALUE = 11, /* enum value integer value */
BPF_CORE_TYPE_MATCHES = 12, /* type match in target kernel */
};
/*

17
tools/include/uapi/linux/btf.h
View file

@ -36,10 +36,10 @@ struct btf_type {
* bits 24-28: kind (e.g. int, ptr, array...etc)
* bits 29-30: unused
* bit 31: kind_flag, currently used by
* struct, union and fwd
* struct, union, enum, fwd and enum64
*/
__u32 info;
/* "size" is used by INT, ENUM, STRUCT, UNION and DATASEC.
/* "size" is used by INT, ENUM, STRUCT, UNION, DATASEC and ENUM64.
* "size" tells the size of the type it is describing.
*
* "type" is used by PTR, TYPEDEF, VOLATILE, CONST, RESTRICT,
@ -63,7 +63,7 @@ enum {
BTF_KIND_ARRAY = 3, /* Array */
BTF_KIND_STRUCT = 4, /* Struct */
BTF_KIND_UNION = 5, /* Union */
BTF_KIND_ENUM = 6, /* Enumeration */
BTF_KIND_ENUM = 6, /* Enumeration up to 32-bit values */
BTF_KIND_FWD = 7, /* Forward */
BTF_KIND_TYPEDEF = 8, /* Typedef */
BTF_KIND_VOLATILE = 9, /* Volatile */
@ -76,6 +76,7 @@ enum {
BTF_KIND_FLOAT = 16, /* Floating point */
BTF_KIND_DECL_TAG = 17, /* Decl Tag */
BTF_KIND_TYPE_TAG = 18, /* Type Tag */
BTF_KIND_ENUM64 = 19, /* Enumeration up to 64-bit values */
NR_BTF_KINDS,
BTF_KIND_MAX = NR_BTF_KINDS - 1,
@ -186,4 +187,14 @@ struct btf_decl_tag {
__s32 component_idx;
};
/* BTF_KIND_ENUM64 is followed by multiple "struct btf_enum64".
* The exact number of btf_enum64 is stored in the vlen (of the
* info in "struct btf_type").
*/
struct btf_enum64 {
__u32 name_off;
__u32 val_lo32;
__u32 val_hi32;
};
#endif /* _UAPI__LINUX_BTF_H__ */

1
tools/include/uapi/linux/if_link.h
View file

@ -890,6 +890,7 @@ enum {
IFLA_BOND_SLAVE_AD_AGGREGATOR_ID,
IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE,
IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE,
IFLA_BOND_SLAVE_PRIO,
__IFLA_BOND_SLAVE_MAX,
};