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, 364 insertions, 0 deletions

diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
new file mode 100644
index 000000000..2f983e0b9
--- /dev/null
+++ b/arch/s390/include/asm/qdio.h
@@ -0,0 +1,364 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright IBM Corp. 2000, 2008
+ * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
+ *	      Jan Glauber <jang@linux.vnet.ibm.com>
+ *
+ */
+#ifndef __QDIO_H__
+#define __QDIO_H__
+
+#include <linux/interrupt.h>
+#include <asm/cio.h>
+#include <asm/ccwdev.h>
+
+/* only use 4 queues to save some cachelines */
+#define QDIO_MAX_QUEUES_PER_IRQ		4
+#define QDIO_MAX_BUFFERS_PER_Q		128
+#define QDIO_MAX_BUFFERS_MASK		(QDIO_MAX_BUFFERS_PER_Q - 1)
+#define QDIO_BUFNR(num)			((num) & QDIO_MAX_BUFFERS_MASK)
+#define QDIO_MAX_ELEMENTS_PER_BUFFER	16
+
+#define QDIO_QETH_QFMT			0
+#define QDIO_ZFCP_QFMT			1
+#define QDIO_IQDIO_QFMT			2
+
+/**
+ * struct qdesfmt0 - queue descriptor, format 0
+ * @sliba: absolute address of storage list information block
+ * @sla: absolute address of storage list
+ * @slsba: absolute address of storage list state block
+ * @akey: access key for SLIB
+ * @bkey: access key for SL
+ * @ckey: access key for SBALs
+ * @dkey: access key for SLSB
+ */
+struct qdesfmt0 {
+	u64 sliba;
+	u64 sla;
+	u64 slsba;
+	u32	 : 32;
+	u32 akey : 4;
+	u32 bkey : 4;
+	u32 ckey : 4;
+	u32 dkey : 4;
+	u32	 : 16;
+} __attribute__ ((packed));
+
+#define QDR_AC_MULTI_BUFFER_ENABLE 0x01
+
+/**
+ * struct qdr - queue description record (QDR)
+ * @qfmt: queue format
+ * @ac: adapter characteristics
+ * @iqdcnt: input queue descriptor count
+ * @oqdcnt: output queue descriptor count
+ * @iqdsz: input queue descriptor size
+ * @oqdsz: output queue descriptor size
+ * @qiba: absolute address of queue information block
+ * @qkey: queue information block key
+ * @qdf0: queue descriptions
+ */
+struct qdr {
+	u32 qfmt   : 8;
+	u32	   : 16;
+	u32 ac	   : 8;
+	u32	   : 8;
+	u32 iqdcnt : 8;
+	u32	   : 8;
+	u32 oqdcnt : 8;
+	u32	   : 8;
+	u32 iqdsz  : 8;
+	u32	   : 8;
+	u32 oqdsz  : 8;
+	/* private: */
+	u32 res[9];
+	/* public: */
+	u64 qiba;
+	u32	   : 32;
+	u32 qkey   : 4;
+	u32	   : 28;
+	struct qdesfmt0 qdf0[126];
+} __packed __aligned(PAGE_SIZE);
+
+#define QIB_AC_OUTBOUND_PCI_SUPPORTED	0x40
+#define QIB_RFLAGS_ENABLE_QEBSM		0x80
+#define QIB_RFLAGS_ENABLE_DATA_DIV	0x02
+
+/**
+ * struct qib - queue information block (QIB)
+ * @qfmt: queue format
+ * @pfmt: implementation dependent parameter format
+ * @rflags: QEBSM
+ * @ac: adapter characteristics
+ * @isliba: logical address of first input SLIB
+ * @osliba: logical address of first output SLIB
+ * @ebcnam: adapter identifier in EBCDIC
+ * @parm: implementation dependent parameters
+ */
+struct qib {
+	u32 qfmt   : 8;
+	u32 pfmt   : 8;
+	u32 rflags : 8;
+	u32 ac	   : 8;
+	u32	   : 32;
+	u64 isliba;
+	u64 osliba;
+	u32	   : 32;
+	u32	   : 32;
+	u8 ebcnam[8];
+	/* private: */
+	u8 res[88];
+	/* public: */
+	u8 parm[128];
+} __attribute__ ((packed, aligned(256)));
+
+/**
+ * struct slibe - storage list information block element (SLIBE)
+ * @parms: implementation dependent parameters
+ */
+struct slibe {
+	u64 parms;
+};
+
+/**
+ * struct qaob - queue asynchronous operation block
+ * @res0: reserved parameters
+ * @res1: reserved parameter
+ * @res2: reserved parameter
+ * @res3: reserved parameter
+ * @aorc: asynchronous operation return code
+ * @flags: internal flags
+ * @cbtbs: control block type
+ * @sb_count: number of storage blocks
+ * @sba: storage block element addresses
+ * @dcount: size of storage block elements
+ * @user0: user definable value
+ * @res4: reserved parameter
+ * @user1: user definable value
+ */
+struct qaob {
+	u64 res0[6];
+	u8 res1;
+	u8 res2;
+	u8 res3;
+	u8 aorc;
+	u8 flags;
+	u16 cbtbs;
+	u8 sb_count;
+	u64 sba[QDIO_MAX_ELEMENTS_PER_BUFFER];
+	u16 dcount[QDIO_MAX_ELEMENTS_PER_BUFFER];
+	u64 user0;
+	u64 res4[2];
+	u8 user1[16];
+} __attribute__ ((packed, aligned(256)));
+
+/**
+ * struct slib - storage list information block (SLIB)
+ * @nsliba: next SLIB address (if any)
+ * @sla: SL address
+ * @slsba: SLSB address
+ * @slibe: SLIB elements
+ */
+struct slib {
+	u64 nsliba;
+	u64 sla;
+	u64 slsba;
+	/* private: */
+	u8 res[1000];
+	/* public: */
+	struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q];
+} __attribute__ ((packed, aligned(2048)));
+
+#define SBAL_EFLAGS_LAST_ENTRY		0x40
+#define SBAL_EFLAGS_CONTIGUOUS		0x20
+#define SBAL_EFLAGS_FIRST_FRAG		0x04
+#define SBAL_EFLAGS_MIDDLE_FRAG		0x08
+#define SBAL_EFLAGS_LAST_FRAG		0x0c
+#define SBAL_EFLAGS_MASK		0x6f
+
+#define SBAL_SFLAGS0_PCI_REQ		0x40
+#define SBAL_SFLAGS0_DATA_CONTINUATION	0x20
+
+/* Awesome OpenFCP extensions */
+#define SBAL_SFLAGS0_TYPE_STATUS	0x00
+#define SBAL_SFLAGS0_TYPE_WRITE		0x08
+#define SBAL_SFLAGS0_TYPE_READ		0x10
+#define SBAL_SFLAGS0_TYPE_WRITE_READ	0x18
+#define SBAL_SFLAGS0_MORE_SBALS		0x04
+#define SBAL_SFLAGS0_COMMAND		0x02
+#define SBAL_SFLAGS0_LAST_SBAL		0x00
+#define SBAL_SFLAGS0_ONLY_SBAL		SBAL_SFLAGS0_COMMAND
+#define SBAL_SFLAGS0_MIDDLE_SBAL	SBAL_SFLAGS0_MORE_SBALS
+#define SBAL_SFLAGS0_FIRST_SBAL (SBAL_SFLAGS0_MORE_SBALS | SBAL_SFLAGS0_COMMAND)
+
+/**
+ * struct qdio_buffer_element - SBAL entry
+ * @eflags: SBAL entry flags
+ * @scount: SBAL count
+ * @sflags: whole SBAL flags
+ * @length: length
+ * @addr: absolute data address
+*/
+struct qdio_buffer_element {
+	u8 eflags;
+	/* private: */
+	u8 res1;
+	/* public: */
+	u8 scount;
+	u8 sflags;
+	u32 length;
+	u64 addr;
+} __attribute__ ((packed, aligned(16)));
+
+/**
+ * struct qdio_buffer - storage block address list (SBAL)
+ * @element: SBAL entries
+ */
+struct qdio_buffer {
+	struct qdio_buffer_element element[QDIO_MAX_ELEMENTS_PER_BUFFER];
+} __attribute__ ((packed, aligned(256)));
+
+/**
+ * struct sl_element - storage list entry
+ * @sbal: absolute SBAL address
+ */
+struct sl_element {
+	u64 sbal;
+} __attribute__ ((packed));
+
+/**
+ * struct sl - storage list (SL)
+ * @element: SL entries
+ */
+struct sl {
+	struct sl_element element[QDIO_MAX_BUFFERS_PER_Q];
+} __attribute__ ((packed, aligned(1024)));
+
+/**
+ * struct slsb - storage list state block (SLSB)
+ * @val: state per buffer
+ */
+struct slsb {
+	u8 val[QDIO_MAX_BUFFERS_PER_Q];
+} __attribute__ ((packed, aligned(256)));
+
+/* qdio adapter-characteristics-1 flag */
+#define CHSC_AC1_INITIATE_INPUTQ	0x80
+#define AC1_SIGA_INPUT_NEEDED		0x40	/* process input queues */
+#define AC1_SIGA_OUTPUT_NEEDED		0x20	/* process output queues */
+#define AC1_SIGA_SYNC_NEEDED		0x10	/* ask hypervisor to sync */
+#define AC1_AUTOMATIC_SYNC_ON_THININT	0x08	/* set by hypervisor */
+#define AC1_AUTOMATIC_SYNC_ON_OUT_PCI	0x04	/* set by hypervisor */
+#define AC1_SC_QEBSM_AVAILABLE		0x02	/* available for subchannel */
+#define AC1_SC_QEBSM_ENABLED		0x01	/* enabled for subchannel */
+
+#define CHSC_AC2_MULTI_BUFFER_AVAILABLE	0x0080
+#define CHSC_AC2_MULTI_BUFFER_ENABLED	0x0040
+#define CHSC_AC2_DATA_DIV_AVAILABLE	0x0010
+#define CHSC_AC2_SNIFFER_AVAILABLE	0x0008
+#define CHSC_AC2_DATA_DIV_ENABLED	0x0002
+
+#define CHSC_AC3_FORMAT2_CQ_AVAILABLE	0x8000
+
+struct qdio_ssqd_desc {
+	u8 flags;
+	u8:8;
+	u16 sch;
+	u8 qfmt;
+	u8 parm;
+	u8 qdioac1;
+	u8 sch_class;
+	u8 pcnt;
+	u8 icnt;
+	u8:8;
+	u8 ocnt;
+	u8:8;
+	u8 mbccnt;
+	u16 qdioac2;
+	u64 sch_token;
+	u8 mro;
+	u8 mri;
+	u16 qdioac3;
+	u16:16;
+	u8:8;
+	u8 mmwc;
+} __attribute__ ((packed));
+
+/* params are: ccw_device, qdio_error, queue_number,
+   first element processed, number of elements processed, int_parm */
+typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
+			    int, int, unsigned long);
+
+/* qdio errors reported through the queue handlers: */
+#define QDIO_ERROR_ACTIVATE			0x0001
+#define QDIO_ERROR_GET_BUF_STATE		0x0002
+#define QDIO_ERROR_SET_BUF_STATE		0x0004
+
+/* extra info for completed SBALs: */
+#define QDIO_ERROR_SLSB_STATE			0x0100
+#define QDIO_ERROR_SLSB_PENDING			0x0200
+
+/* for qdio_cleanup */
+#define QDIO_FLAG_CLEANUP_USING_CLEAR		0x01
+#define QDIO_FLAG_CLEANUP_USING_HALT		0x02
+
+/**
+ * struct qdio_initialize - qdio initialization data
+ * @q_format: queue format
+ * @qdr_ac: feature flags to set
+ * @qib_param_field_format: format for qib_parm_field
+ * @qib_param_field: pointer to 128 bytes or NULL, if no param field
+ * @qib_rflags: rflags to set
+ * @no_input_qs: number of input queues
+ * @no_output_qs: number of output queues
+ * @input_handler: handler to be called for input queues, and device-wide errors
+ * @output_handler: handler to be called for output queues
+ * @irq_poll: Data IRQ polling handler
+ * @scan_threshold: # of in-use buffers that triggers scan on output queue
+ * @int_parm: interruption parameter
+ * @input_sbal_addr_array:  per-queue array, each element points to 128 SBALs
+ * @output_sbal_addr_array: per-queue array, each element points to 128 SBALs
+ */
+struct qdio_initialize {
+	unsigned char q_format;
+	unsigned char qdr_ac;
+	unsigned int qib_param_field_format;
+	unsigned char *qib_param_field;
+	unsigned char qib_rflags;
+	unsigned int no_input_qs;
+	unsigned int no_output_qs;
+	qdio_handler_t *input_handler;
+	qdio_handler_t *output_handler;
+	void (*irq_poll)(struct ccw_device *cdev, unsigned long data);
+	unsigned long int_parm;
+	struct qdio_buffer ***input_sbal_addr_array;
+	struct qdio_buffer ***output_sbal_addr_array;
+};
+
+int qdio_alloc_buffers(struct qdio_buffer **buf, unsigned int count);
+void qdio_free_buffers(struct qdio_buffer **buf, unsigned int count);
+void qdio_reset_buffers(struct qdio_buffer **buf, unsigned int count);
+
+extern int qdio_allocate(struct ccw_device *cdev, unsigned int no_input_qs,
+			 unsigned int no_output_qs);
+extern int qdio_establish(struct ccw_device *cdev,
+			  struct qdio_initialize *init_data);
+extern int qdio_activate(struct ccw_device *);
+extern int qdio_start_irq(struct ccw_device *cdev);
+extern int qdio_stop_irq(struct ccw_device *cdev);
+extern int qdio_inspect_input_queue(struct ccw_device *cdev, unsigned int nr,
+				    unsigned int *bufnr, unsigned int *error);
+extern int qdio_inspect_output_queue(struct ccw_device *cdev, unsigned int nr,
+				     unsigned int *bufnr, unsigned int *error);
+extern int qdio_add_bufs_to_input_queue(struct ccw_device *cdev,
+					unsigned int q_nr, unsigned int bufnr,
+					unsigned int count);
+extern int qdio_add_bufs_to_output_queue(struct ccw_device *cdev,
+					 unsigned int q_nr, unsigned int bufnr,
+					 unsigned int count, struct qaob *aob);
+extern int qdio_shutdown(struct ccw_device *, int);
+extern int qdio_free(struct ccw_device *);
+extern int qdio_get_ssqd_desc(struct ccw_device *, struct qdio_ssqd_desc *);
+
+#endif /* __QDIO_H__ */