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, 404 insertions, 0 deletions

diff --git a/drivers/scsi/arm/fas216.h b/drivers/scsi/arm/fas216.h
new file mode 100644
index 000000000..08113277a
--- /dev/null
+++ b/drivers/scsi/arm/fas216.h
@@ -0,0 +1,404 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  linux/drivers/acorn/scsi/fas216.h
+ *
+ *  Copyright (C) 1997-2000 Russell King
+ *
+ *  FAS216 generic driver
+ */
+#ifndef FAS216_H
+#define FAS216_H
+
+#include <scsi/scsi_eh.h>
+
+#include "queue.h"
+#include "msgqueue.h"
+
+/* FAS register definitions */
+
+/* transfer count low */
+#define REG_CTCL		(0)
+#define REG_STCL		(0)
+
+/* transfer count medium */
+#define REG_CTCM		(1)
+#define REG_STCM		(1)
+
+/* fifo data */
+#define REG_FF			(2)
+
+/* command */
+#define REG_CMD			(3)
+#define CMD_NOP			0x00
+#define CMD_FLUSHFIFO		0x01
+#define CMD_RESETCHIP		0x02
+#define CMD_RESETSCSI		0x03
+
+#define CMD_TRANSFERINFO	0x10
+#define CMD_INITCMDCOMPLETE	0x11
+#define CMD_MSGACCEPTED		0x12
+#define CMD_PADBYTES		0x18
+#define CMD_SETATN		0x1a
+#define CMD_RSETATN		0x1b
+
+#define CMD_SELECTWOATN		0x41
+#define CMD_SELECTATN		0x42
+#define CMD_SELECTATNSTOP	0x43
+#define CMD_ENABLESEL		0x44
+#define CMD_DISABLESEL		0x45
+#define CMD_SELECTATN3		0x46
+#define CMD_RESEL3		0x47
+
+#define CMD_WITHDMA		0x80
+
+/* status register (read) */
+#define REG_STAT		(4)
+#define STAT_IO			(1 << 0)			/* IO phase		*/
+#define STAT_CD			(1 << 1)			/* CD phase		*/
+#define STAT_MSG		(1 << 2)			/* MSG phase		*/
+#define STAT_TRANSFERDONE	(1 << 3)			/* Transfer completed	*/
+#define STAT_TRANSFERCNTZ	(1 << 4)			/* Transfer counter is zero */
+#define STAT_PARITYERROR	(1 << 5)			/* Parity error		*/
+#define STAT_REALBAD		(1 << 6)			/* Something bad	*/
+#define STAT_INT		(1 << 7)			/* Interrupt		*/
+
+#define STAT_BUSMASK		(STAT_MSG|STAT_CD|STAT_IO)
+#define STAT_DATAOUT		(0)				/* Data out		*/
+#define STAT_DATAIN		(STAT_IO)			/* Data in		*/
+#define STAT_COMMAND		(STAT_CD)			/* Command out		*/
+#define STAT_STATUS		(STAT_CD|STAT_IO)		/* Status In		*/
+#define STAT_MESGOUT		(STAT_MSG|STAT_CD)		/* Message out		*/
+#define STAT_MESGIN		(STAT_MSG|STAT_CD|STAT_IO)	/* Message In		*/
+
+/* bus ID for select / reselect */
+#define REG_SDID		(4)
+#define BUSID(target)		((target) & 7)
+
+/* Interrupt status register (read) */
+#define REG_INST		(5)
+#define INST_SELWOATN		(1 << 0)			/* Select w/o ATN	*/
+#define INST_SELATN		(1 << 1)			/* Select w/ATN		*/
+#define INST_RESELECTED		(1 << 2)			/* Reselected		*/
+#define INST_FUNCDONE		(1 << 3)			/* Function done	*/
+#define INST_BUSSERVICE		(1 << 4)			/* Bus service		*/
+#define INST_DISCONNECT		(1 << 5)			/* Disconnect		*/
+#define INST_ILLEGALCMD		(1 << 6)			/* Illegal command	*/
+#define INST_BUSRESET		(1 << 7)			/* SCSI Bus reset	*/
+
+/* Timeout register (write) */
+#define REG_STIM		(5)
+
+/* Sequence step register (read) */
+#define REG_IS			(6)
+#define IS_BITS			0x07
+#define IS_SELARB		0x00				/* Select & Arb ok	*/
+#define IS_MSGBYTESENT		0x01				/* One byte message sent*/
+#define IS_NOTCOMMAND		0x02				/* Not in command state	*/
+#define IS_EARLYPHASE		0x03				/* Early phase change	*/
+#define IS_COMPLETE		0x04				/* Command ok		*/
+#define IS_SOF			0x08				/* Sync off flag	*/
+
+/* Transfer period step (write) */
+#define REG_STP			(6)
+
+/* Synchronous Offset (write) */
+#define REG_SOF			(7)
+
+/* Fifo state register (read) */
+#define REG_CFIS		(7)
+#define CFIS_CF			0x1f				/* Num bytes in FIFO	*/
+#define CFIS_IS			0xe0				/* Step			*/
+
+/* config register 1 */
+#define REG_CNTL1		(8)
+#define CNTL1_CID		(7 << 0)			/* Chip ID			*/
+#define CNTL1_STE		(1 << 3)			/* Self test enable		*/
+#define CNTL1_PERE		(1 << 4)			/* Parity enable reporting en.	*/
+#define CNTL1_PTE		(1 << 5)			/* Parity test enable		*/
+#define CNTL1_DISR		(1 << 6)			/* Disable Irq on SCSI reset	*/
+#define CNTL1_ETM		(1 << 7)			/* Extended Timing Mode		*/
+
+/* Clock conversion factor (read) */
+#define REG_CLKF		(9)
+#define CLKF_F37MHZ		0x00				/* 35.01 - 40 MHz		*/
+#define CLKF_F10MHZ		0x02				/* 10 MHz			*/
+#define CLKF_F12MHZ		0x03				/* 10.01 - 15 MHz		*/
+#define CLKF_F17MHZ		0x04				/* 15.01 - 20 MHz		*/
+#define CLKF_F22MHZ		0x05				/* 20.01 - 25 MHz		*/
+#define CLKF_F27MHZ		0x06				/* 25.01 - 30 MHz		*/
+#define CLKF_F32MHZ		0x07				/* 30.01 - 35 MHz		*/
+
+/* Chip test register (write) */
+#define REG_FTM			(10)
+#define TEST_FTM		0x01				/* Force target mode		*/
+#define TEST_FIM		0x02				/* Force initiator mode		*/
+#define TEST_FHI		0x04				/* Force high impedance mode	*/
+
+/* Configuration register 2 (read/write) */
+#define REG_CNTL2		(11)
+#define CNTL2_PGDP		(1 << 0)			/* Pass Th/Generate Data Parity	*/
+#define CNTL2_PGRP		(1 << 1)			/* Pass Th/Generate Reg Parity	*/
+#define CNTL2_ACDPE		(1 << 2)			/* Abort on Cmd/Data Parity Err	*/
+#define CNTL2_S2FE		(1 << 3)			/* SCSI2 Features Enable	*/
+#define CNTL2_TSDR		(1 << 4)			/* Tristate DREQ		*/
+#define CNTL2_SBO		(1 << 5)			/* Select Byte Order		*/
+#define CNTL2_ENF		(1 << 6)			/* Enable features		*/
+#define CNTL2_DAE		(1 << 7)			/* Data Alignment Enable	*/
+
+/* Configuration register 3 (read/write) */
+#define REG_CNTL3		(12)
+#define CNTL3_BS8		(1 << 0)			/* Burst size 8			*/
+#define CNTL3_MDM		(1 << 1)			/* Modify DMA mode		*/
+#define CNTL3_LBTM		(1 << 2)			/* Last Byte Transfer mode	*/
+#define CNTL3_FASTCLK		(1 << 3)			/* Fast SCSI clocking		*/
+#define CNTL3_FASTSCSI		(1 << 4)			/* Fast SCSI			*/
+#define CNTL3_G2CB		(1 << 5)			/* Group2 SCSI support		*/
+#define CNTL3_QTAG		(1 << 6)			/* Enable 3 byte msgs		*/
+#define CNTL3_ADIDCHK		(1 << 7)			/* Additional ID check		*/
+
+/* High transfer count (read/write) */
+#define REG_CTCH		(14)
+#define REG_STCH		(14)
+
+/* ID register (read only) */
+#define REG_ID			(14)
+
+/* Data alignment */
+#define REG_DAL			(15)
+
+typedef enum {
+	PHASE_IDLE,					/* we're not planning on doing anything	*/
+	PHASE_SELECTION,				/* selecting a device			*/
+	PHASE_SELSTEPS,					/* selection with command steps		*/
+	PHASE_COMMAND,					/* command sent				*/
+	PHASE_MESSAGESENT,				/* selected, and we're sending cmd	*/
+	PHASE_DATAOUT,					/* data out to device			*/
+	PHASE_DATAIN,					/* data in from device			*/
+	PHASE_MSGIN,					/* message in from device		*/
+	PHASE_MSGIN_DISCONNECT,				/* disconnecting from bus		*/
+	PHASE_MSGOUT,					/* after message out phase		*/
+	PHASE_MSGOUT_EXPECT,				/* expecting message out		*/
+	PHASE_STATUS,					/* status from device			*/
+	PHASE_DONE					/* Command complete			*/
+} phase_t;
+
+typedef enum {
+	DMA_OUT,					/* DMA from memory to chip		*/
+	DMA_IN						/* DMA from chip to memory		*/
+} fasdmadir_t;
+
+typedef enum {
+	fasdma_none,					/* No dma				*/
+	fasdma_pio,					/* PIO mode				*/
+	fasdma_pseudo,					/* Pseudo DMA				*/
+	fasdma_real_block,				/* Real DMA, on block by block basis	*/
+	fasdma_real_all					/* Real DMA, on request by request	*/
+} fasdmatype_t;
+
+typedef enum {
+	neg_wait,					/* Negotiate with device		*/
+	neg_inprogress,					/* Negotiation sent			*/
+	neg_complete,					/* Negotiation complete			*/
+	neg_targcomplete,				/* Target completed negotiation		*/
+	neg_invalid					/* Negotiation not supported		*/
+} neg_t;
+
+#define MAGIC	0x441296bdUL
+#define NR_MSGS	8
+
+#define FASCAP_DMA		(1 << 0)
+#define FASCAP_PSEUDODMA	(1 << 1)
+
+typedef struct {
+	unsigned long		magic_start;
+	spinlock_t		host_lock;
+	struct Scsi_Host	*host;			/* host					*/
+	struct scsi_cmnd	*SCpnt;			/* currently processing command		*/
+	struct scsi_cmnd	*origSCpnt;		/* original connecting command		*/
+	struct scsi_cmnd	*reqSCpnt;		/* request sense command		*/
+	struct scsi_cmnd	*rstSCpnt;		/* reset command			*/
+	struct scsi_cmnd	*pending_SCpnt[8];	/* per-device pending commands		*/
+	int			next_pending;		/* next pending device			*/
+
+	/*
+	 * Error recovery
+	 */
+	wait_queue_head_t	eh_wait;
+	struct timer_list	eh_timer;
+	unsigned int		rst_dev_status;
+	unsigned int		rst_bus_status;
+
+	/* driver information */
+	struct {
+		phase_t		phase;			/* current phase			*/
+		void __iomem	*io_base;		/* iomem base of FAS216			*/
+		unsigned int	io_shift;		/* shift to adjust reg offsets by	*/
+		unsigned char	cfg[4];			/* configuration registers		*/
+		const char	*type;			/* chip type				*/
+		unsigned int	irq;			/* interrupt				*/
+		int		dma;			/* dma channel				*/
+
+		struct scsi_pointer	SCp;			/* current commands data pointer	*/
+
+		MsgQueue_t	msgs;			/* message queue for connected device	*/
+
+		unsigned int	async_stp;		/* Async transfer STP value		*/
+		unsigned char	msgin_fifo;		/* bytes in fifo at time of message in	*/
+		unsigned char	message[256];		/* last message received from device	*/
+
+		unsigned char	disconnectable:1;	/* this command can be disconnected	*/
+		unsigned char	aborting:1;		/* aborting command			*/
+	} scsi;
+
+	/* statistics information */
+	struct {
+		unsigned int	queues;
+		unsigned int	removes;
+		unsigned int	fins;
+		unsigned int	reads;
+		unsigned int	writes;
+		unsigned int	miscs;
+		unsigned int	disconnects;
+		unsigned int	aborts;
+		unsigned int	bus_resets;
+		unsigned int	host_resets;
+	} stats;
+
+	/* configuration information */
+	struct {
+		unsigned char	clockrate;		/* clock rate of FAS device (MHz)	*/
+		unsigned char	select_timeout;		/* timeout (R5)				*/
+		unsigned char	sync_max_depth;		/* Synchronous xfer max fifo depth	*/
+		unsigned char	wide_max_size;		/* Maximum wide transfer size		*/
+		unsigned char	cntl3;			/* Control Reg 3			*/
+		unsigned int	asyncperiod;		/* Async transfer period (ns)		*/
+		unsigned int	capabilities;		/* driver capabilities			*/
+		unsigned int	disconnect_ok:1;	/* Disconnects allowed?			*/
+	} ifcfg;
+
+	/* queue handling */
+	struct {
+	    	Queue_t		issue;			/* issue queue				*/
+    		Queue_t		disconnected;		/* disconnected command queue		*/
+	} queues;
+
+	/* per-device info */
+	struct fas216_device {
+		unsigned char	disconnect_ok:1;	/* device can disconnect		*/
+		unsigned char	parity_enabled:1;	/* parity checking enabled		*/
+		unsigned char	parity_check:1;		/* need to check parity checking	*/
+		unsigned char	period;			/* sync xfer period in (*4ns)		*/
+		unsigned char	stp;			/* synchronous transfer period		*/
+		unsigned char	sof;			/* synchronous offset register		*/
+		unsigned char	wide_xfer;		/* currently negociated wide transfer	*/
+		neg_t		sync_state;		/* synchronous transfer mode		*/
+		neg_t		wide_state;		/* wide transfer mode			*/
+	} device[8];
+	unsigned long	busyluns[64/sizeof(unsigned long)];/* array of bits indicating LUNs busy	*/
+
+	/* dma */
+	struct {
+		fasdmatype_t	transfer_type;		/* current type of DMA transfer		*/
+		fasdmatype_t	(*setup) (struct Scsi_Host *host, struct scsi_pointer *SCp, fasdmadir_t direction, fasdmatype_t min_dma);
+		void		(*pseudo)(struct Scsi_Host *host, struct scsi_pointer *SCp, fasdmadir_t direction, int transfer);
+		void		(*stop)  (struct Scsi_Host *host, struct scsi_pointer *SCp);
+	} dma;
+
+	/* miscellaneous */
+	int			internal_done;		/* flag to indicate request done */
+	struct scsi_eh_save	ses;		/* holds request sense restore info */
+	unsigned long		magic_end;
+} FAS216_Info;
+
+/* driver-private data per SCSI command. */
+struct fas216_cmd_priv {
+	/*
+	 * @scsi_pointer must be the first member. See also arm_scsi_pointer().
+	 */
+	struct scsi_pointer scsi_pointer;
+	void (*scsi_done)(struct scsi_cmnd *cmd);
+};
+
+static inline struct fas216_cmd_priv *fas216_cmd_priv(struct scsi_cmnd *cmd)
+{
+	return scsi_cmd_priv(cmd);
+}
+
+/* Function: int fas216_init (struct Scsi_Host *instance)
+ * Purpose : initialise FAS/NCR/AMD SCSI structures.
+ * Params  : instance - a driver-specific filled-out structure
+ * Returns : 0 on success
+ */
+extern int fas216_init (struct Scsi_Host *instance);
+
+/* Function: int fas216_add (struct Scsi_Host *instance, struct device *dev)
+ * Purpose : initialise FAS/NCR/AMD SCSI ic.
+ * Params  : instance - a driver-specific filled-out structure
+ * Returns : 0 on success
+ */
+extern int fas216_add (struct Scsi_Host *instance, struct device *dev);
+
+/* Function: int fas216_queue_command(struct Scsi_Host *h, struct scsi_cmnd *SCpnt)
+ * Purpose : queue a command for adapter to process.
+ * Params  : h - host adapter
+ *	   : SCpnt - Command to queue
+ * Returns : 0 - success, else error
+ */
+extern int fas216_queue_command(struct Scsi_Host *h, struct scsi_cmnd *SCpnt);
+
+/* Function: int fas216_noqueue_command(struct Scsi_Host *h, struct scsi_cmnd *SCpnt)
+ * Purpose : queue a command for adapter to process, and process it to completion.
+ * Params  : h - host adapter
+ *	   : SCpnt - Command to queue
+ * Returns : 0 - success, else error
+ */
+extern int fas216_noqueue_command(struct Scsi_Host *, struct scsi_cmnd *);
+
+/* Function: irqreturn_t fas216_intr (FAS216_Info *info)
+ * Purpose : handle interrupts from the interface to progress a command
+ * Params  : info - interface to service
+ */
+extern irqreturn_t fas216_intr (FAS216_Info *info);
+
+extern void fas216_remove (struct Scsi_Host *instance);
+
+/* Function: void fas216_release (struct Scsi_Host *instance)
+ * Purpose : release all resources and put everything to bed for FAS/NCR/AMD SCSI ic.
+ * Params  : instance - a driver-specific filled-out structure
+ * Returns : 0 on success
+ */
+extern void fas216_release (struct Scsi_Host *instance);
+
+extern void fas216_print_host(FAS216_Info *info, struct seq_file *m);
+extern void fas216_print_stats(FAS216_Info *info, struct seq_file *m);
+extern void fas216_print_devices(FAS216_Info *info, struct seq_file *m);
+
+/* Function: int fas216_eh_abort(struct scsi_cmnd *SCpnt)
+ * Purpose : abort this command
+ * Params  : SCpnt - command to abort
+ * Returns : FAILED if unable to abort
+ */
+extern int fas216_eh_abort(struct scsi_cmnd *SCpnt);
+
+/* Function: int fas216_eh_device_reset(struct scsi_cmnd *SCpnt)
+ * Purpose : Reset the device associated with this command
+ * Params  : SCpnt - command specifing device to reset
+ * Returns : FAILED if unable to reset
+ */
+extern int fas216_eh_device_reset(struct scsi_cmnd *SCpnt);
+
+/* Function: int fas216_eh_bus_reset(struct scsi_cmnd *SCpnt)
+ * Purpose : Reset the complete bus associated with this command
+ * Params  : SCpnt - command specifing bus to reset
+ * Returns : FAILED if unable to reset
+ */
+extern int fas216_eh_bus_reset(struct scsi_cmnd *SCpnt);
+
+/* Function: int fas216_eh_host_reset(struct scsi_cmnd *SCpnt)
+ * Purpose : Reset the host associated with this command
+ * Params  : SCpnt - command specifing host to reset
+ * Returns : FAILED if unable to reset
+ */
+extern int fas216_eh_host_reset(struct scsi_cmnd *SCpnt);
+
+#endif /* FAS216_H */