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, 624 insertions, 0 deletions

diff --git a/drivers/net/ethernet/3com/typhoon.h b/drivers/net/ethernet/3com/typhoon.h
new file mode 100644
index 000000000..38e6dcab4
--- /dev/null
+++ b/drivers/net/ethernet/3com/typhoon.h
@@ -0,0 +1,624 @@
+/* typhoon.h:	chip info for the 3Com 3CR990 family of controllers */
+/*
+	Written 2002-2003 by David Dillow <dave@thedillows.org>
+
+	This software may be used and distributed according to the terms of
+	the GNU General Public License (GPL), incorporated herein by reference.
+	Drivers based on or derived from this code fall under the GPL and must
+	retain the authorship, copyright and license notice.  This file is not
+	a complete program and may only be used when the entire operating
+	system is licensed under the GPL.
+
+	This software is available on a public web site. It may enable
+	cryptographic capabilities of the 3Com hardware, and may be
+	exported from the United States under License Exception "TSU"
+	pursuant to 15 C.F.R. Section 740.13(e).
+
+	This work was funded by the National Library of Medicine under
+	the Department of Energy project number 0274DD06D1 and NLM project
+	number Y1-LM-2015-01.
+*/
+
+/* All Typhoon ring positions are specificed in bytes, and point to the
+ * first "clean" entry in the ring -- ie the next entry we use for whatever
+ * purpose.
+ */
+
+/* The Typhoon basic ring
+ * ringBase:  where this ring lives (our virtual address)
+ * lastWrite: the next entry we'll use
+ */
+struct basic_ring {
+	u8 *ringBase;
+	u32 lastWrite;
+};
+
+/* The Typhoon transmit ring -- same as a basic ring, plus:
+ * lastRead:      where we're at in regard to cleaning up the ring
+ * writeRegister: register to use for writing (different for Hi & Lo rings)
+ */
+struct transmit_ring {
+	u8 *ringBase;
+	u32 lastWrite;
+	u32 lastRead;
+	int writeRegister;
+};
+
+/* The host<->Typhoon ring index structure
+ * This indicates the current positions in the rings
+ *
+ * All values must be in little endian format for the 3XP
+ *
+ * rxHiCleared:   entry we've cleared to in the Hi receive ring
+ * rxLoCleared:   entry we've cleared to in the Lo receive ring
+ * rxBuffReady:   next entry we'll put a free buffer in
+ * respCleared:   entry we've cleared to in the response ring
+ *
+ * txLoCleared:   entry the NIC has cleared to in the Lo transmit ring
+ * txHiCleared:   entry the NIC has cleared to in the Hi transmit ring
+ * rxLoReady:     entry the NIC has filled to in the Lo receive ring
+ * rxBuffCleared: entry the NIC has cleared in the free buffer ring
+ * cmdCleared:    entry the NIC has cleared in the command ring
+ * respReady:     entry the NIC has filled to in the response ring
+ * rxHiReady:     entry the NIC has filled to in the Hi receive ring
+ */
+struct typhoon_indexes {
+	/* The first four are written by the host, and read by the NIC */
+	volatile __le32 rxHiCleared;
+	volatile __le32 rxLoCleared;
+	volatile __le32 rxBuffReady;
+	volatile __le32 respCleared;
+
+	/* The remaining are written by the NIC, and read by the host */
+	volatile __le32 txLoCleared;
+	volatile __le32 txHiCleared;
+	volatile __le32 rxLoReady;
+	volatile __le32 rxBuffCleared;
+	volatile __le32 cmdCleared;
+	volatile __le32 respReady;
+	volatile __le32 rxHiReady;
+} __packed;
+
+/* The host<->Typhoon interface
+ * Our means of communicating where things are
+ *
+ * All values must be in little endian format for the 3XP
+ *
+ * ringIndex:   64 bit bus address of the index structure
+ * txLoAddr:    64 bit bus address of the Lo transmit ring
+ * txLoSize:    size (in bytes) of the Lo transmit ring
+ * txHi*:       as above for the Hi priority transmit ring
+ * rxLo*:       as above for the Lo priority receive ring
+ * rxBuff*:     as above for the free buffer ring
+ * cmd*:        as above for the command ring
+ * resp*:       as above for the response ring
+ * zeroAddr:    64 bit bus address of a zero word (for DMA)
+ * rxHi*:       as above for the Hi Priority receive ring
+ *
+ * While there is room for 64 bit addresses, current versions of the 3XP
+ * only do 32 bit addresses, so the *Hi for each of the above will always
+ * be zero.
+ */
+struct typhoon_interface {
+	__le32 ringIndex;
+	__le32 ringIndexHi;
+	__le32 txLoAddr;
+	__le32 txLoAddrHi;
+	__le32 txLoSize;
+	__le32 txHiAddr;
+	__le32 txHiAddrHi;
+	__le32 txHiSize;
+	__le32 rxLoAddr;
+	__le32 rxLoAddrHi;
+	__le32 rxLoSize;
+	__le32 rxBuffAddr;
+	__le32 rxBuffAddrHi;
+	__le32 rxBuffSize;
+	__le32 cmdAddr;
+	__le32 cmdAddrHi;
+	__le32 cmdSize;
+	__le32 respAddr;
+	__le32 respAddrHi;
+	__le32 respSize;
+	__le32 zeroAddr;
+	__le32 zeroAddrHi;
+	__le32 rxHiAddr;
+	__le32 rxHiAddrHi;
+	__le32 rxHiSize;
+} __packed;
+
+/* The Typhoon transmit/fragment descriptor
+ *
+ * A packet is described by a packet descriptor, followed by option descriptors,
+ * if any, then one or more fragment descriptors.
+ *
+ * Packet descriptor:
+ * flags:	Descriptor type
+ * len:i	zero, or length of this packet
+ * addr*:	8 bytes of opaque data to the firmware -- for skb pointer
+ * processFlags: Determine offload tasks to perform on this packet.
+ *
+ * Fragment descriptor:
+ * flags:	Descriptor type
+ * len:i	length of this fragment
+ * addr:	low bytes of DMA address for this part of the packet
+ * addrHi:	hi bytes of DMA address for this part of the packet
+ * processFlags: must be zero
+ *
+ * TYPHOON_DESC_VALID is not mentioned in their docs, but their Linux
+ * driver uses it.
+ */
+struct tx_desc {
+	u8  flags;
+#define TYPHOON_TYPE_MASK	0x07
+#define 	TYPHOON_FRAG_DESC	0x00
+#define 	TYPHOON_TX_DESC		0x01
+#define 	TYPHOON_CMD_DESC	0x02
+#define 	TYPHOON_OPT_DESC	0x03
+#define 	TYPHOON_RX_DESC		0x04
+#define 	TYPHOON_RESP_DESC	0x05
+#define TYPHOON_OPT_TYPE_MASK	0xf0
+#define 	TYPHOON_OPT_IPSEC	0x00
+#define 	TYPHOON_OPT_TCP_SEG	0x10
+#define TYPHOON_CMD_RESPOND	0x40
+#define TYPHOON_RESP_ERROR	0x40
+#define TYPHOON_RX_ERROR	0x40
+#define TYPHOON_DESC_VALID	0x80
+	u8  numDesc;
+	__le16 len;
+	union {
+		struct {
+			__le32 addr;
+			__le32 addrHi;
+		} frag;
+		u64 tx_addr;	/* opaque for hardware, for TX_DESC */
+	};
+	__le32 processFlags;
+#define TYPHOON_TX_PF_NO_CRC		cpu_to_le32(0x00000001)
+#define TYPHOON_TX_PF_IP_CHKSUM		cpu_to_le32(0x00000002)
+#define TYPHOON_TX_PF_TCP_CHKSUM	cpu_to_le32(0x00000004)
+#define TYPHOON_TX_PF_TCP_SEGMENT	cpu_to_le32(0x00000008)
+#define TYPHOON_TX_PF_INSERT_VLAN	cpu_to_le32(0x00000010)
+#define TYPHOON_TX_PF_IPSEC		cpu_to_le32(0x00000020)
+#define TYPHOON_TX_PF_VLAN_PRIORITY	cpu_to_le32(0x00000040)
+#define TYPHOON_TX_PF_UDP_CHKSUM	cpu_to_le32(0x00000080)
+#define TYPHOON_TX_PF_PAD_FRAME		cpu_to_le32(0x00000100)
+#define TYPHOON_TX_PF_RESERVED		cpu_to_le32(0x00000e00)
+#define TYPHOON_TX_PF_VLAN_MASK		cpu_to_le32(0x0ffff000)
+#define TYPHOON_TX_PF_INTERNAL		cpu_to_le32(0xf0000000)
+#define TYPHOON_TX_PF_VLAN_TAG_SHIFT	12
+} __packed;
+
+/* The TCP Segmentation offload option descriptor
+ *
+ * flags:	descriptor type
+ * numDesc:	must be 1
+ * mss_flags:	bits 0-11 (little endian) are MSS, 12 is first TSO descriptor
+ *			13 is list TSO descriptor, set both if only one TSO
+ * respAddrLo:	low bytes of address of the bytesTx field of this descriptor
+ * bytesTx:	total number of bytes in this TSO request
+ * status:	0 on completion
+ */
+struct tcpopt_desc {
+	u8  flags;
+	u8  numDesc;
+	__le16 mss_flags;
+#define TYPHOON_TSO_FIRST		cpu_to_le16(0x1000)
+#define TYPHOON_TSO_LAST		cpu_to_le16(0x2000)
+	__le32 respAddrLo;
+	__le32 bytesTx;
+	__le32 status;
+} __packed;
+
+/* The IPSEC Offload descriptor
+ *
+ * flags:	descriptor type
+ * numDesc:	must be 1
+ * ipsecFlags:	bit 0: 0 -- generate IV, 1 -- use supplied IV
+ * sa1, sa2:	Security Association IDs for this packet
+ * reserved:	set to 0
+ */
+struct ipsec_desc {
+	u8  flags;
+	u8  numDesc;
+	__le16 ipsecFlags;
+#define TYPHOON_IPSEC_GEN_IV	cpu_to_le16(0x0000)
+#define TYPHOON_IPSEC_USE_IV	cpu_to_le16(0x0001)
+	__le32 sa1;
+	__le32 sa2;
+	__le32 reserved;
+} __packed;
+
+/* The Typhoon receive descriptor (Updated by NIC)
+ *
+ * flags:         Descriptor type, error indication
+ * numDesc:       Always zero
+ * frameLen:      the size of the packet received
+ * addr:          low 32 bytes of the virtual addr passed in for this buffer
+ * addrHi:        high 32 bytes of the virtual addr passed in for this buffer
+ * rxStatus:      Error if set in flags, otherwise result of offload processing
+ * filterResults: results of filtering on packet, not used
+ * ipsecResults:  Results of IPSEC processing
+ * vlanTag:       the 801.2q TCI from the packet
+ */
+struct rx_desc {
+	u8  flags;
+	u8  numDesc;
+	__le16 frameLen;
+	u32 addr;	/* opaque, comes from virtAddr */
+	u32 addrHi;	/* opaque, comes from virtAddrHi */
+	__le32 rxStatus;
+#define TYPHOON_RX_ERR_INTERNAL		cpu_to_le32(0x00000000)
+#define TYPHOON_RX_ERR_FIFO_UNDERRUN	cpu_to_le32(0x00000001)
+#define TYPHOON_RX_ERR_BAD_SSD		cpu_to_le32(0x00000002)
+#define TYPHOON_RX_ERR_RUNT		cpu_to_le32(0x00000003)
+#define TYPHOON_RX_ERR_CRC		cpu_to_le32(0x00000004)
+#define TYPHOON_RX_ERR_OVERSIZE		cpu_to_le32(0x00000005)
+#define TYPHOON_RX_ERR_ALIGN		cpu_to_le32(0x00000006)
+#define TYPHOON_RX_ERR_DRIBBLE		cpu_to_le32(0x00000007)
+#define TYPHOON_RX_PROTO_MASK		cpu_to_le32(0x00000003)
+#define TYPHOON_RX_PROTO_UNKNOWN	cpu_to_le32(0x00000000)
+#define TYPHOON_RX_PROTO_IP		cpu_to_le32(0x00000001)
+#define TYPHOON_RX_PROTO_IPX		cpu_to_le32(0x00000002)
+#define TYPHOON_RX_VLAN			cpu_to_le32(0x00000004)
+#define TYPHOON_RX_IP_FRAG		cpu_to_le32(0x00000008)
+#define TYPHOON_RX_IPSEC		cpu_to_le32(0x00000010)
+#define TYPHOON_RX_IP_CHK_FAIL		cpu_to_le32(0x00000020)
+#define TYPHOON_RX_TCP_CHK_FAIL		cpu_to_le32(0x00000040)
+#define TYPHOON_RX_UDP_CHK_FAIL		cpu_to_le32(0x00000080)
+#define TYPHOON_RX_IP_CHK_GOOD		cpu_to_le32(0x00000100)
+#define TYPHOON_RX_TCP_CHK_GOOD		cpu_to_le32(0x00000200)
+#define TYPHOON_RX_UDP_CHK_GOOD		cpu_to_le32(0x00000400)
+	__le16 filterResults;
+#define TYPHOON_RX_FILTER_MASK		cpu_to_le16(0x7fff)
+#define TYPHOON_RX_FILTERED		cpu_to_le16(0x8000)
+	__le16 ipsecResults;
+#define TYPHOON_RX_OUTER_AH_GOOD	cpu_to_le16(0x0001)
+#define TYPHOON_RX_OUTER_ESP_GOOD	cpu_to_le16(0x0002)
+#define TYPHOON_RX_INNER_AH_GOOD	cpu_to_le16(0x0004)
+#define TYPHOON_RX_INNER_ESP_GOOD	cpu_to_le16(0x0008)
+#define TYPHOON_RX_OUTER_AH_FAIL	cpu_to_le16(0x0010)
+#define TYPHOON_RX_OUTER_ESP_FAIL	cpu_to_le16(0x0020)
+#define TYPHOON_RX_INNER_AH_FAIL	cpu_to_le16(0x0040)
+#define TYPHOON_RX_INNER_ESP_FAIL	cpu_to_le16(0x0080)
+#define TYPHOON_RX_UNKNOWN_SA		cpu_to_le16(0x0100)
+#define TYPHOON_RX_ESP_FORMAT_ERR	cpu_to_le16(0x0200)
+	__be32 vlanTag;
+} __packed;
+
+/* The Typhoon free buffer descriptor, used to give a buffer to the NIC
+ *
+ * physAddr:    low 32 bits of the bus address of the buffer
+ * physAddrHi:  high 32 bits of the bus address of the buffer, always zero
+ * virtAddr:    low 32 bits of the skb address
+ * virtAddrHi:  high 32 bits of the skb address, always zero
+ *
+ * the virt* address is basically two 32 bit cookies, just passed back
+ * from the NIC
+ */
+struct rx_free {
+	__le32 physAddr;
+	__le32 physAddrHi;
+	u32 virtAddr;
+	u32 virtAddrHi;
+} __packed;
+
+/* The Typhoon command descriptor, used for commands and responses
+ *
+ * flags:   descriptor type
+ * numDesc: number of descriptors following in this command/response,
+ *				ie, zero for a one descriptor command
+ * cmd:     the command
+ * seqNo:   sequence number (unused)
+ * parm1:   use varies by command
+ * parm2:   use varies by command
+ * parm3:   use varies by command
+ */
+struct cmd_desc {
+	u8  flags;
+	u8  numDesc;
+	__le16 cmd;
+#define TYPHOON_CMD_TX_ENABLE		cpu_to_le16(0x0001)
+#define TYPHOON_CMD_TX_DISABLE		cpu_to_le16(0x0002)
+#define TYPHOON_CMD_RX_ENABLE		cpu_to_le16(0x0003)
+#define TYPHOON_CMD_RX_DISABLE		cpu_to_le16(0x0004)
+#define TYPHOON_CMD_SET_RX_FILTER	cpu_to_le16(0x0005)
+#define TYPHOON_CMD_READ_STATS		cpu_to_le16(0x0007)
+#define TYPHOON_CMD_XCVR_SELECT		cpu_to_le16(0x0013)
+#define TYPHOON_CMD_SET_MAX_PKT_SIZE	cpu_to_le16(0x001a)
+#define TYPHOON_CMD_READ_MEDIA_STATUS	cpu_to_le16(0x001b)
+#define TYPHOON_CMD_GOTO_SLEEP		cpu_to_le16(0x0023)
+#define TYPHOON_CMD_SET_MULTICAST_HASH	cpu_to_le16(0x0025)
+#define TYPHOON_CMD_SET_MAC_ADDRESS	cpu_to_le16(0x0026)
+#define TYPHOON_CMD_READ_MAC_ADDRESS	cpu_to_le16(0x0027)
+#define TYPHOON_CMD_VLAN_TYPE_WRITE	cpu_to_le16(0x002b)
+#define TYPHOON_CMD_CREATE_SA		cpu_to_le16(0x0034)
+#define TYPHOON_CMD_DELETE_SA		cpu_to_le16(0x0035)
+#define TYPHOON_CMD_READ_VERSIONS	cpu_to_le16(0x0043)
+#define TYPHOON_CMD_IRQ_COALESCE_CTRL	cpu_to_le16(0x0045)
+#define TYPHOON_CMD_ENABLE_WAKE_EVENTS	cpu_to_le16(0x0049)
+#define TYPHOON_CMD_SET_OFFLOAD_TASKS	cpu_to_le16(0x004f)
+#define TYPHOON_CMD_HELLO_RESP		cpu_to_le16(0x0057)
+#define TYPHOON_CMD_HALT		cpu_to_le16(0x005d)
+#define TYPHOON_CMD_READ_IPSEC_INFO	cpu_to_le16(0x005e)
+#define TYPHOON_CMD_GET_IPSEC_ENABLE	cpu_to_le16(0x0067)
+#define TYPHOON_CMD_GET_CMD_LVL		cpu_to_le16(0x0069)
+	u16 seqNo;
+	__le16 parm1;
+	__le32 parm2;
+	__le32 parm3;
+} __packed;
+
+/* The Typhoon response descriptor, see command descriptor for details
+ */
+struct resp_desc {
+	u8  flags;
+	u8  numDesc;
+	__le16 cmd;
+	__le16 seqNo;
+	__le16 parm1;
+	__le32 parm2;
+	__le32 parm3;
+} __packed;
+
+#define INIT_COMMAND_NO_RESPONSE(x, command)				\
+	do { struct cmd_desc *_ptr = (x);				\
+		memset(_ptr, 0, sizeof(struct cmd_desc));		\
+		_ptr->flags = TYPHOON_CMD_DESC | TYPHOON_DESC_VALID;	\
+		_ptr->cmd = command;					\
+	} while (0)
+
+/* We set seqNo to 1 if we're expecting a response from this command */
+#define INIT_COMMAND_WITH_RESPONSE(x, command)				\
+	do { struct cmd_desc *_ptr = (x);				\
+		memset(_ptr, 0, sizeof(struct cmd_desc));		\
+		_ptr->flags = TYPHOON_CMD_RESPOND | TYPHOON_CMD_DESC;	\
+		_ptr->flags |= TYPHOON_DESC_VALID; 			\
+		_ptr->cmd = command;					\
+		_ptr->seqNo = 1;					\
+	} while (0)
+
+/* TYPHOON_CMD_SET_RX_FILTER filter bits (cmd.parm1)
+ */
+#define TYPHOON_RX_FILTER_DIRECTED	cpu_to_le16(0x0001)
+#define TYPHOON_RX_FILTER_ALL_MCAST	cpu_to_le16(0x0002)
+#define TYPHOON_RX_FILTER_BROADCAST	cpu_to_le16(0x0004)
+#define TYPHOON_RX_FILTER_PROMISCOUS	cpu_to_le16(0x0008)
+#define TYPHOON_RX_FILTER_MCAST_HASH	cpu_to_le16(0x0010)
+
+/* TYPHOON_CMD_READ_STATS response format
+ */
+struct stats_resp {
+	u8  flags;
+	u8  numDesc;
+	__le16 cmd;
+	__le16 seqNo;
+	__le16 unused;
+	__le32 txPackets;
+	__le64 txBytes;
+	__le32 txDeferred;
+	__le32 txLateCollisions;
+	__le32 txCollisions;
+	__le32 txCarrierLost;
+	__le32 txMultipleCollisions;
+	__le32 txExcessiveCollisions;
+	__le32 txFifoUnderruns;
+	__le32 txMulticastTxOverflows;
+	__le32 txFiltered;
+	__le32 rxPacketsGood;
+	__le64 rxBytesGood;
+	__le32 rxFifoOverruns;
+	__le32 BadSSD;
+	__le32 rxCrcErrors;
+	__le32 rxOversized;
+	__le32 rxBroadcast;
+	__le32 rxMulticast;
+	__le32 rxOverflow;
+	__le32 rxFiltered;
+	__le32 linkStatus;
+#define TYPHOON_LINK_STAT_MASK		cpu_to_le32(0x00000001)
+#define TYPHOON_LINK_GOOD		cpu_to_le32(0x00000001)
+#define TYPHOON_LINK_BAD		cpu_to_le32(0x00000000)
+#define TYPHOON_LINK_SPEED_MASK		cpu_to_le32(0x00000002)
+#define TYPHOON_LINK_100MBPS		cpu_to_le32(0x00000002)
+#define TYPHOON_LINK_10MBPS		cpu_to_le32(0x00000000)
+#define TYPHOON_LINK_DUPLEX_MASK	cpu_to_le32(0x00000004)
+#define TYPHOON_LINK_FULL_DUPLEX	cpu_to_le32(0x00000004)
+#define TYPHOON_LINK_HALF_DUPLEX	cpu_to_le32(0x00000000)
+	__le32 unused2;
+	__le32 unused3;
+} __packed;
+
+/* TYPHOON_CMD_XCVR_SELECT xcvr values (resp.parm1)
+ */
+#define TYPHOON_XCVR_10HALF	cpu_to_le16(0x0000)
+#define TYPHOON_XCVR_10FULL	cpu_to_le16(0x0001)
+#define TYPHOON_XCVR_100HALF	cpu_to_le16(0x0002)
+#define TYPHOON_XCVR_100FULL	cpu_to_le16(0x0003)
+#define TYPHOON_XCVR_AUTONEG	cpu_to_le16(0x0004)
+
+/* TYPHOON_CMD_READ_MEDIA_STATUS (resp.parm1)
+ */
+#define TYPHOON_MEDIA_STAT_CRC_STRIP_DISABLE	cpu_to_le16(0x0004)
+#define TYPHOON_MEDIA_STAT_COLLISION_DETECT	cpu_to_le16(0x0010)
+#define TYPHOON_MEDIA_STAT_CARRIER_SENSE	cpu_to_le16(0x0020)
+#define TYPHOON_MEDIA_STAT_POLARITY_REV		cpu_to_le16(0x0400)
+#define TYPHOON_MEDIA_STAT_NO_LINK		cpu_to_le16(0x0800)
+
+/* TYPHOON_CMD_SET_MULTICAST_HASH enable values (cmd.parm1)
+ */
+#define TYPHOON_MCAST_HASH_DISABLE	cpu_to_le16(0x0000)
+#define TYPHOON_MCAST_HASH_ENABLE	cpu_to_le16(0x0001)
+#define TYPHOON_MCAST_HASH_SET		cpu_to_le16(0x0002)
+
+/* TYPHOON_CMD_CREATE_SA descriptor and settings
+ */
+struct sa_descriptor {
+	u8  flags;
+	u8  numDesc;
+	u16 cmd;
+	u16 seqNo;
+	u16 mode;
+#define TYPHOON_SA_MODE_NULL		cpu_to_le16(0x0000)
+#define TYPHOON_SA_MODE_AH		cpu_to_le16(0x0001)
+#define TYPHOON_SA_MODE_ESP		cpu_to_le16(0x0002)
+	u8  hashFlags;
+#define TYPHOON_SA_HASH_ENABLE		0x01
+#define TYPHOON_SA_HASH_SHA1		0x02
+#define TYPHOON_SA_HASH_MD5		0x04
+	u8  direction;
+#define TYPHOON_SA_DIR_RX		0x00
+#define TYPHOON_SA_DIR_TX		0x01
+	u8  encryptionFlags;
+#define TYPHOON_SA_ENCRYPT_ENABLE	0x01
+#define TYPHOON_SA_ENCRYPT_DES		0x02
+#define TYPHOON_SA_ENCRYPT_3DES		0x00
+#define TYPHOON_SA_ENCRYPT_3DES_2KEY	0x00
+#define TYPHOON_SA_ENCRYPT_3DES_3KEY	0x04
+#define TYPHOON_SA_ENCRYPT_CBC		0x08
+#define TYPHOON_SA_ENCRYPT_ECB		0x00
+	u8  specifyIndex;
+#define TYPHOON_SA_SPECIFY_INDEX	0x01
+#define TYPHOON_SA_GENERATE_INDEX	0x00
+	u32 SPI;
+	u32 destAddr;
+	u32 destMask;
+	u8  integKey[20];
+	u8  confKey[24];
+	u32 index;
+	u32 unused;
+	u32 unused2;
+} __packed;
+
+/* TYPHOON_CMD_SET_OFFLOAD_TASKS bits (cmd.parm2 (Tx) & cmd.parm3 (Rx))
+ * This is all for IPv4.
+ */
+#define TYPHOON_OFFLOAD_TCP_CHKSUM	cpu_to_le32(0x00000002)
+#define TYPHOON_OFFLOAD_UDP_CHKSUM	cpu_to_le32(0x00000004)
+#define TYPHOON_OFFLOAD_IP_CHKSUM	cpu_to_le32(0x00000008)
+#define TYPHOON_OFFLOAD_IPSEC		cpu_to_le32(0x00000010)
+#define TYPHOON_OFFLOAD_BCAST_THROTTLE	cpu_to_le32(0x00000020)
+#define TYPHOON_OFFLOAD_DHCP_PREVENT	cpu_to_le32(0x00000040)
+#define TYPHOON_OFFLOAD_VLAN		cpu_to_le32(0x00000080)
+#define TYPHOON_OFFLOAD_FILTERING	cpu_to_le32(0x00000100)
+#define TYPHOON_OFFLOAD_TCP_SEGMENT	cpu_to_le32(0x00000200)
+
+/* TYPHOON_CMD_ENABLE_WAKE_EVENTS bits (cmd.parm1)
+ */
+#define TYPHOON_WAKE_MAGIC_PKT		cpu_to_le16(0x01)
+#define TYPHOON_WAKE_LINK_EVENT		cpu_to_le16(0x02)
+#define TYPHOON_WAKE_ICMP_ECHO		cpu_to_le16(0x04)
+#define TYPHOON_WAKE_ARP		cpu_to_le16(0x08)
+
+/* These are used to load the firmware image on the NIC
+ */
+struct typhoon_file_header {
+	u8  tag[8];
+	__le32 version;
+	__le32 numSections;
+	__le32 startAddr;
+	__le32 hmacDigest[5];
+} __packed;
+
+struct typhoon_section_header {
+	__le32 len;
+	u16 checksum;
+	u16 reserved;
+	__le32 startAddr;
+} __packed;
+
+/* The Typhoon Register offsets
+ */
+#define TYPHOON_REG_SOFT_RESET			0x00
+#define TYPHOON_REG_INTR_STATUS			0x04
+#define TYPHOON_REG_INTR_ENABLE			0x08
+#define TYPHOON_REG_INTR_MASK			0x0c
+#define TYPHOON_REG_SELF_INTERRUPT		0x10
+#define TYPHOON_REG_HOST2ARM7			0x14
+#define TYPHOON_REG_HOST2ARM6			0x18
+#define TYPHOON_REG_HOST2ARM5			0x1c
+#define TYPHOON_REG_HOST2ARM4			0x20
+#define TYPHOON_REG_HOST2ARM3			0x24
+#define TYPHOON_REG_HOST2ARM2			0x28
+#define TYPHOON_REG_HOST2ARM1			0x2c
+#define TYPHOON_REG_HOST2ARM0			0x30
+#define TYPHOON_REG_ARM2HOST3			0x34
+#define TYPHOON_REG_ARM2HOST2			0x38
+#define TYPHOON_REG_ARM2HOST1			0x3c
+#define TYPHOON_REG_ARM2HOST0			0x40
+
+#define TYPHOON_REG_BOOT_DATA_LO		TYPHOON_REG_HOST2ARM5
+#define TYPHOON_REG_BOOT_DATA_HI		TYPHOON_REG_HOST2ARM4
+#define TYPHOON_REG_BOOT_DEST_ADDR		TYPHOON_REG_HOST2ARM3
+#define TYPHOON_REG_BOOT_CHECKSUM		TYPHOON_REG_HOST2ARM2
+#define TYPHOON_REG_BOOT_LENGTH			TYPHOON_REG_HOST2ARM1
+
+#define TYPHOON_REG_DOWNLOAD_BOOT_ADDR		TYPHOON_REG_HOST2ARM1
+#define TYPHOON_REG_DOWNLOAD_HMAC_0		TYPHOON_REG_HOST2ARM2
+#define TYPHOON_REG_DOWNLOAD_HMAC_1		TYPHOON_REG_HOST2ARM3
+#define TYPHOON_REG_DOWNLOAD_HMAC_2		TYPHOON_REG_HOST2ARM4
+#define TYPHOON_REG_DOWNLOAD_HMAC_3		TYPHOON_REG_HOST2ARM5
+#define TYPHOON_REG_DOWNLOAD_HMAC_4		TYPHOON_REG_HOST2ARM6
+
+#define TYPHOON_REG_BOOT_RECORD_ADDR_HI		TYPHOON_REG_HOST2ARM2
+#define TYPHOON_REG_BOOT_RECORD_ADDR_LO		TYPHOON_REG_HOST2ARM1
+
+#define TYPHOON_REG_TX_LO_READY			TYPHOON_REG_HOST2ARM3
+#define TYPHOON_REG_CMD_READY			TYPHOON_REG_HOST2ARM2
+#define TYPHOON_REG_TX_HI_READY			TYPHOON_REG_HOST2ARM1
+
+#define TYPHOON_REG_COMMAND			TYPHOON_REG_HOST2ARM0
+#define TYPHOON_REG_HEARTBEAT			TYPHOON_REG_ARM2HOST3
+#define TYPHOON_REG_STATUS			TYPHOON_REG_ARM2HOST0
+
+/* 3XP Reset values (TYPHOON_REG_SOFT_RESET)
+ */
+#define TYPHOON_RESET_ALL	0x7f
+#define TYPHOON_RESET_NONE	0x00
+
+/* 3XP irq bits (TYPHOON_REG_INTR{STATUS,ENABLE,MASK})
+ *
+ * Some of these came from OpenBSD, as the 3Com docs have it wrong
+ * (INTR_SELF) or don't list it at all (INTR_*_ABORT)
+ *
+ * Enabling irqs on the Heartbeat reg (ArmToHost3) gets you an irq
+ * about every 8ms, so don't do it.
+ */
+#define TYPHOON_INTR_HOST_INT		0x00000001
+#define TYPHOON_INTR_ARM2HOST0		0x00000002
+#define TYPHOON_INTR_ARM2HOST1		0x00000004
+#define TYPHOON_INTR_ARM2HOST2		0x00000008
+#define TYPHOON_INTR_ARM2HOST3		0x00000010
+#define TYPHOON_INTR_DMA0		0x00000020
+#define TYPHOON_INTR_DMA1		0x00000040
+#define TYPHOON_INTR_DMA2		0x00000080
+#define TYPHOON_INTR_DMA3		0x00000100
+#define TYPHOON_INTR_MASTER_ABORT	0x00000200
+#define TYPHOON_INTR_TARGET_ABORT	0x00000400
+#define TYPHOON_INTR_SELF		0x00000800
+#define TYPHOON_INTR_RESERVED		0xfffff000
+
+#define TYPHOON_INTR_BOOTCMD		TYPHOON_INTR_ARM2HOST0
+
+#define TYPHOON_INTR_ENABLE_ALL		0xffffffef
+#define TYPHOON_INTR_ALL		0xffffffff
+#define TYPHOON_INTR_NONE		0x00000000
+
+/* The commands for the 3XP chip (TYPHOON_REG_COMMAND)
+ */
+#define TYPHOON_BOOTCMD_BOOT			0x00
+#define TYPHOON_BOOTCMD_WAKEUP			0xfa
+#define TYPHOON_BOOTCMD_DNLD_COMPLETE		0xfb
+#define TYPHOON_BOOTCMD_SEG_AVAILABLE		0xfc
+#define TYPHOON_BOOTCMD_RUNTIME_IMAGE		0xfd
+#define TYPHOON_BOOTCMD_REG_BOOT_RECORD		0xff
+
+/* 3XP Status values (TYPHOON_REG_STATUS)
+ */
+#define TYPHOON_STATUS_WAITING_FOR_BOOT		0x07
+#define TYPHOON_STATUS_SECOND_INIT		0x08
+#define TYPHOON_STATUS_RUNNING			0x09
+#define TYPHOON_STATUS_WAITING_FOR_HOST		0x0d
+#define TYPHOON_STATUS_WAITING_FOR_SEGMENT	0x10
+#define TYPHOON_STATUS_SLEEPING			0x11
+#define TYPHOON_STATUS_HALTED			0x14