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, 795 insertions, 0 deletions

diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
new file mode 100644
index 000000000..dc1f4d958
--- /dev/null
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -0,0 +1,795 @@
+/*
+ * PMC-Sierra PM8001/8081/8088/8089 SAS/SATA based host adapters driver
+ *
+ * Copyright (c) 2008-2009 USI Co., Ltd.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ *
+ */
+
+#ifndef _PM8001_SAS_H_
+#define _PM8001_SAS_H_
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/types.h>
+#include <linux/ctype.h>
+#include <linux/dma-mapping.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <scsi/libsas.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/sas_ata.h>
+#include <linux/atomic.h>
+#include <linux/blk-mq.h>
+#include <linux/blk-mq-pci.h>
+#include "pm8001_defs.h"
+
+#define DRV_NAME		"pm80xx"
+#define DRV_VERSION		"0.1.40"
+#define PM8001_FAIL_LOGGING	0x01 /* Error message logging */
+#define PM8001_INIT_LOGGING	0x02 /* driver init logging */
+#define PM8001_DISC_LOGGING	0x04 /* discovery layer logging */
+#define PM8001_IO_LOGGING	0x08 /* I/O path logging */
+#define PM8001_EH_LOGGING	0x10 /* libsas EH function logging*/
+#define PM8001_IOCTL_LOGGING	0x20 /* IOCTL message logging */
+#define PM8001_MSG_LOGGING	0x40 /* misc message logging */
+#define PM8001_DEV_LOGGING	0x80 /* development message logging */
+#define PM8001_DEVIO_LOGGING	0x100 /* development io message logging */
+#define PM8001_IOERR_LOGGING	0x200 /* development io err message logging */
+
+#define pm8001_info(HBA, fmt, ...)					\
+	pr_info("%s:: %s %d: " fmt,					\
+		(HBA)->name, __func__, __LINE__, ##__VA_ARGS__)
+
+#define pm8001_dbg(HBA, level, fmt, ...)				\
+do {									\
+	if (unlikely((HBA)->logging_level & PM8001_##level##_LOGGING))	\
+		pm8001_info(HBA, fmt, ##__VA_ARGS__);			\
+} while (0)
+
+#define PM8001_USE_TASKLET
+#define PM8001_USE_MSIX
+#define PM8001_READ_VPD
+
+
+#define IS_SPCV_12G(dev)	((dev->device == 0X8074)		\
+				|| (dev->device == 0X8076)		\
+				|| (dev->device == 0X8077)		\
+				|| (dev->device == 0X8070)		\
+				|| (dev->device == 0X8072))
+
+#define PM8001_NAME_LENGTH		32/* generic length of strings */
+extern struct list_head hba_list;
+extern const struct pm8001_dispatch pm8001_8001_dispatch;
+extern const struct pm8001_dispatch pm8001_80xx_dispatch;
+
+struct pm8001_hba_info;
+struct pm8001_ccb_info;
+struct pm8001_device;
+
+struct pm8001_ioctl_payload {
+	u32	signature;
+	u16	major_function;
+	u16	minor_function;
+	u16	status;
+	u16	offset;
+	u16	id;
+	u32	wr_length;
+	u32	rd_length;
+	u8	*func_specific;
+};
+
+#define MPI_FATAL_ERROR_TABLE_OFFSET_MASK 0xFFFFFF
+#define MPI_FATAL_ERROR_TABLE_SIZE(value) ((0xFF000000 & value) >> SHIFT24)
+#define MPI_FATAL_EDUMP_TABLE_LO_OFFSET            0x00     /* HNFBUFL */
+#define MPI_FATAL_EDUMP_TABLE_HI_OFFSET            0x04     /* HNFBUFH */
+#define MPI_FATAL_EDUMP_TABLE_LENGTH               0x08     /* HNFBLEN */
+#define MPI_FATAL_EDUMP_TABLE_HANDSHAKE            0x0C     /* FDDHSHK */
+#define MPI_FATAL_EDUMP_TABLE_STATUS               0x10     /* FDDTSTAT */
+#define MPI_FATAL_EDUMP_TABLE_ACCUM_LEN            0x14     /* ACCDDLEN */
+#define MPI_FATAL_EDUMP_TABLE_TOTAL_LEN		   0x18	    /* TOTALLEN */
+#define MPI_FATAL_EDUMP_TABLE_SIGNATURE		   0x1C     /* SIGNITURE */
+#define MPI_FATAL_EDUMP_HANDSHAKE_RDY              0x1
+#define MPI_FATAL_EDUMP_HANDSHAKE_BUSY             0x0
+#define MPI_FATAL_EDUMP_TABLE_STAT_RSVD                 0x0
+#define MPI_FATAL_EDUMP_TABLE_STAT_DMA_FAILED           0x1
+#define MPI_FATAL_EDUMP_TABLE_STAT_NF_SUCCESS_MORE_DATA 0x2
+#define MPI_FATAL_EDUMP_TABLE_STAT_NF_SUCCESS_DONE      0x3
+#define TYPE_GSM_SPACE        1
+#define TYPE_QUEUE            2
+#define TYPE_FATAL            3
+#define TYPE_NON_FATAL        4
+#define TYPE_INBOUND          1
+#define TYPE_OUTBOUND         2
+struct forensic_data {
+	u32  data_type;
+	union {
+		struct {
+			u32  direct_len;
+			u32  direct_offset;
+			void  *direct_data;
+		} gsm_buf;
+		struct {
+			u16  queue_type;
+			u16  queue_index;
+			u32  direct_len;
+			void  *direct_data;
+		} queue_buf;
+		struct {
+			u32  direct_len;
+			u32  direct_offset;
+			u32  read_len;
+			void  *direct_data;
+		} data_buf;
+	};
+};
+
+/* bit31-26 - mask bar */
+#define SCRATCH_PAD0_BAR_MASK                    0xFC000000
+/* bit25-0  - offset mask */
+#define SCRATCH_PAD0_OFFSET_MASK                 0x03FFFFFF
+/* if AAP error state */
+#define SCRATCH_PAD0_AAPERR_MASK                 0xFFFFFFFF
+/* Inbound doorbell bit7 */
+#define SPCv_MSGU_CFG_TABLE_NONFATAL_DUMP	 0x80
+/* Inbound doorbell bit7 SPCV */
+#define SPCV_MSGU_CFG_TABLE_TRANSFER_DEBUG_INFO  0x80
+#define MAIN_MERRDCTO_MERRDCES		         0xA0/* DWORD 0x28) */
+
+struct pm8001_dispatch {
+	char *name;
+	int (*chip_init)(struct pm8001_hba_info *pm8001_ha);
+	void (*chip_post_init)(struct pm8001_hba_info *pm8001_ha);
+	int (*chip_soft_rst)(struct pm8001_hba_info *pm8001_ha);
+	void (*chip_rst)(struct pm8001_hba_info *pm8001_ha);
+	int (*chip_ioremap)(struct pm8001_hba_info *pm8001_ha);
+	void (*chip_iounmap)(struct pm8001_hba_info *pm8001_ha);
+	irqreturn_t (*isr)(struct pm8001_hba_info *pm8001_ha, u8 vec);
+	u32 (*is_our_interrupt)(struct pm8001_hba_info *pm8001_ha);
+	int (*isr_process_oq)(struct pm8001_hba_info *pm8001_ha, u8 vec);
+	void (*interrupt_enable)(struct pm8001_hba_info *pm8001_ha, u8 vec);
+	void (*interrupt_disable)(struct pm8001_hba_info *pm8001_ha, u8 vec);
+	void (*make_prd)(struct scatterlist *scatter, int nr, void *prd);
+	int (*smp_req)(struct pm8001_hba_info *pm8001_ha,
+		struct pm8001_ccb_info *ccb);
+	int (*ssp_io_req)(struct pm8001_hba_info *pm8001_ha,
+		struct pm8001_ccb_info *ccb);
+	int (*sata_req)(struct pm8001_hba_info *pm8001_ha,
+		struct pm8001_ccb_info *ccb);
+	int (*phy_start_req)(struct pm8001_hba_info *pm8001_ha,	u8 phy_id);
+	int (*phy_stop_req)(struct pm8001_hba_info *pm8001_ha, u8 phy_id);
+	int (*reg_dev_req)(struct pm8001_hba_info *pm8001_ha,
+		struct pm8001_device *pm8001_dev, u32 flag);
+	int (*dereg_dev_req)(struct pm8001_hba_info *pm8001_ha, u32 device_id);
+	int (*phy_ctl_req)(struct pm8001_hba_info *pm8001_ha,
+		u32 phy_id, u32 phy_op);
+	int (*task_abort)(struct pm8001_hba_info *pm8001_ha,
+		struct pm8001_ccb_info *ccb);
+	int (*ssp_tm_req)(struct pm8001_hba_info *pm8001_ha,
+		struct pm8001_ccb_info *ccb, struct sas_tmf_task *tmf);
+	int (*get_nvmd_req)(struct pm8001_hba_info *pm8001_ha, void *payload);
+	int (*set_nvmd_req)(struct pm8001_hba_info *pm8001_ha, void *payload);
+	int (*fw_flash_update_req)(struct pm8001_hba_info *pm8001_ha,
+		void *payload);
+	int (*set_dev_state_req)(struct pm8001_hba_info *pm8001_ha,
+		struct pm8001_device *pm8001_dev, u32 state);
+	int (*sas_diag_start_end_req)(struct pm8001_hba_info *pm8001_ha,
+		u32 state);
+	int (*sas_diag_execute_req)(struct pm8001_hba_info *pm8001_ha,
+		u32 state);
+	int (*sas_re_init_req)(struct pm8001_hba_info *pm8001_ha);
+	int (*fatal_errors)(struct pm8001_hba_info *pm8001_ha);
+	void (*hw_event_ack_req)(struct pm8001_hba_info *pm8001_ha,
+		u32 Qnum, u32 SEA, u32 port_id, u32 phyId, u32 param0,
+		u32 param1);
+};
+
+struct pm8001_chip_info {
+	u32     encrypt;
+	u32	n_phy;
+	const struct pm8001_dispatch	*dispatch;
+};
+#define PM8001_CHIP_DISP	(pm8001_ha->chip->dispatch)
+
+struct pm8001_port {
+	struct asd_sas_port	sas_port;
+	u8			port_attached;
+	u16			wide_port_phymap;
+	u8			port_state;
+	u8			port_id;
+	struct list_head	list;
+};
+
+struct pm8001_phy {
+	struct pm8001_hba_info	*pm8001_ha;
+	struct pm8001_port	*port;
+	struct asd_sas_phy	sas_phy;
+	struct sas_identify	identify;
+	struct scsi_device	*sdev;
+	u64			dev_sas_addr;
+	u32			phy_type;
+	struct completion	*enable_completion;
+	u32			frame_rcvd_size;
+	u8			frame_rcvd[32];
+	u8			phy_attached;
+	u8			phy_state;
+	enum sas_linkrate	minimum_linkrate;
+	enum sas_linkrate	maximum_linkrate;
+	struct completion	*reset_completion;
+	bool			port_reset_status;
+	bool			reset_success;
+};
+
+/* port reset status */
+#define PORT_RESET_SUCCESS	0x00
+#define PORT_RESET_TMO		0x01
+
+struct pm8001_device {
+	enum sas_device_type	dev_type;
+	struct domain_device	*sas_device;
+	u32			attached_phy;
+	u32			id;
+	struct completion	*dcompletion;
+	struct completion	*setds_completion;
+	u32			device_id;
+	atomic_t		running_req;
+};
+
+struct pm8001_prd_imt {
+	__le32			len;
+	__le32			e;
+};
+
+struct pm8001_prd {
+	__le64			addr;		/* 64-bit buffer address */
+	struct pm8001_prd_imt	im_len;		/* 64-bit length */
+} __attribute__ ((packed));
+/*
+ * CCB(Command Control Block)
+ */
+struct pm8001_ccb_info {
+	struct sas_task		*task;
+	u32			n_elem;
+	u32			ccb_tag;
+	dma_addr_t		ccb_dma_handle;
+	struct pm8001_device	*device;
+	struct pm8001_prd	*buf_prd;
+	struct fw_control_ex	*fw_control_context;
+	u8			open_retry;
+};
+
+struct mpi_mem {
+	void			*virt_ptr;
+	dma_addr_t		phys_addr;
+	u32			phys_addr_hi;
+	u32			phys_addr_lo;
+	u32			total_len;
+	u32			num_elements;
+	u32			element_size;
+	u32			alignment;
+};
+
+struct mpi_mem_req {
+	/* The number of element in the  mpiMemory array */
+	u32			count;
+	/* The array of structures that define memroy regions*/
+	struct mpi_mem		region[USI_MAX_MEMCNT];
+};
+
+struct encrypt {
+	u32	cipher_mode;
+	u32	sec_mode;
+	u32	status;
+	u32	flag;
+};
+
+struct sas_phy_attribute_table {
+	u32	phystart1_16[16];
+	u32	outbound_hw_event_pid1_16[16];
+};
+
+union main_cfg_table {
+	struct {
+	u32			signature;
+	u32			interface_rev;
+	u32			firmware_rev;
+	u32			max_out_io;
+	u32			max_sgl;
+	u32			ctrl_cap_flag;
+	u32			gst_offset;
+	u32			inbound_queue_offset;
+	u32			outbound_queue_offset;
+	u32			inbound_q_nppd_hppd;
+	u32			outbound_hw_event_pid0_3;
+	u32			outbound_hw_event_pid4_7;
+	u32			outbound_ncq_event_pid0_3;
+	u32			outbound_ncq_event_pid4_7;
+	u32			outbound_tgt_ITNexus_event_pid0_3;
+	u32			outbound_tgt_ITNexus_event_pid4_7;
+	u32			outbound_tgt_ssp_event_pid0_3;
+	u32			outbound_tgt_ssp_event_pid4_7;
+	u32			outbound_tgt_smp_event_pid0_3;
+	u32			outbound_tgt_smp_event_pid4_7;
+	u32			upper_event_log_addr;
+	u32			lower_event_log_addr;
+	u32			event_log_size;
+	u32			event_log_option;
+	u32			upper_iop_event_log_addr;
+	u32			lower_iop_event_log_addr;
+	u32			iop_event_log_size;
+	u32			iop_event_log_option;
+	u32			fatal_err_interrupt;
+	u32			fatal_err_dump_offset0;
+	u32			fatal_err_dump_length0;
+	u32			fatal_err_dump_offset1;
+	u32			fatal_err_dump_length1;
+	u32			hda_mode_flag;
+	u32			anolog_setup_table_offset;
+	u32			rsvd[4];
+	} pm8001_tbl;
+
+	struct {
+	u32			signature;
+	u32			interface_rev;
+	u32			firmware_rev;
+	u32			max_out_io;
+	u32			max_sgl;
+	u32			ctrl_cap_flag;
+	u32			gst_offset;
+	u32			inbound_queue_offset;
+	u32			outbound_queue_offset;
+	u32			inbound_q_nppd_hppd;
+	u32			rsvd[8];
+	u32			crc_core_dump;
+	u32			rsvd1;
+	u32			upper_event_log_addr;
+	u32			lower_event_log_addr;
+	u32			event_log_size;
+	u32			event_log_severity;
+	u32			upper_pcs_event_log_addr;
+	u32			lower_pcs_event_log_addr;
+	u32			pcs_event_log_size;
+	u32			pcs_event_log_severity;
+	u32			fatal_err_interrupt;
+	u32			fatal_err_dump_offset0;
+	u32			fatal_err_dump_length0;
+	u32			fatal_err_dump_offset1;
+	u32			fatal_err_dump_length1;
+	u32			gpio_led_mapping;
+	u32			analog_setup_table_offset;
+	u32			int_vec_table_offset;
+	u32			phy_attr_table_offset;
+	u32			port_recovery_timer;
+	u32			interrupt_reassertion_delay;
+	u32			fatal_n_non_fatal_dump;	        /* 0x28 */
+	u32			ila_version;
+	u32			inc_fw_version;
+	} pm80xx_tbl;
+};
+
+union general_status_table {
+	struct {
+	u32			gst_len_mpistate;
+	u32			iq_freeze_state0;
+	u32			iq_freeze_state1;
+	u32			msgu_tcnt;
+	u32			iop_tcnt;
+	u32			rsvd;
+	u32			phy_state[8];
+	u32			gpio_input_val;
+	u32			rsvd1[2];
+	u32			recover_err_info[8];
+	} pm8001_tbl;
+	struct {
+	u32			gst_len_mpistate;
+	u32			iq_freeze_state0;
+	u32			iq_freeze_state1;
+	u32			msgu_tcnt;
+	u32			iop_tcnt;
+	u32			rsvd[9];
+	u32			gpio_input_val;
+	u32			rsvd1[2];
+	u32			recover_err_info[8];
+	} pm80xx_tbl;
+};
+struct inbound_queue_table {
+	u32			element_pri_size_cnt;
+	u32			upper_base_addr;
+	u32			lower_base_addr;
+	u32			ci_upper_base_addr;
+	u32			ci_lower_base_addr;
+	u32			pi_pci_bar;
+	u32			pi_offset;
+	u32			total_length;
+	void			*base_virt;
+	void			*ci_virt;
+	u32			reserved;
+	__le32			consumer_index;
+	u32			producer_idx;
+	spinlock_t		iq_lock;
+};
+struct outbound_queue_table {
+	u32			element_size_cnt;
+	u32			upper_base_addr;
+	u32			lower_base_addr;
+	void			*base_virt;
+	u32			pi_upper_base_addr;
+	u32			pi_lower_base_addr;
+	u32			ci_pci_bar;
+	u32			ci_offset;
+	u32			total_length;
+	void			*pi_virt;
+	u32			interrup_vec_cnt_delay;
+	u32			dinterrup_to_pci_offset;
+	__le32			producer_index;
+	u32			consumer_idx;
+	spinlock_t		oq_lock;
+	unsigned long		lock_flags;
+};
+struct pm8001_hba_memspace {
+	void __iomem  		*memvirtaddr;
+	u64			membase;
+	u32			memsize;
+};
+struct isr_param {
+	struct pm8001_hba_info *drv_inst;
+	u32 irq_id;
+};
+struct pm8001_hba_info {
+	char			name[PM8001_NAME_LENGTH];
+	struct list_head	list;
+	unsigned long		flags;
+	spinlock_t		lock;/* host-wide lock */
+	spinlock_t		bitmap_lock;
+	struct pci_dev		*pdev;/* our device */
+	struct device		*dev;
+	struct pm8001_hba_memspace io_mem[6];
+	struct mpi_mem_req	memoryMap;
+	struct encrypt		encrypt_info; /* support encryption */
+	struct forensic_data	forensic_info;
+	u32			fatal_bar_loc;
+	u32			forensic_last_offset;
+	u32			fatal_forensic_shift_offset;
+	u32			forensic_fatal_step;
+	u32			forensic_preserved_accumulated_transfer;
+	u32			evtlog_ib_offset;
+	u32			evtlog_ob_offset;
+	void __iomem	*msg_unit_tbl_addr;/*Message Unit Table Addr*/
+	void __iomem	*main_cfg_tbl_addr;/*Main Config Table Addr*/
+	void __iomem	*general_stat_tbl_addr;/*General Status Table Addr*/
+	void __iomem	*inbnd_q_tbl_addr;/*Inbound Queue Config Table Addr*/
+	void __iomem	*outbnd_q_tbl_addr;/*Outbound Queue Config Table Addr*/
+	void __iomem	*pspa_q_tbl_addr;
+			/*MPI SAS PHY attributes Queue Config Table Addr*/
+	void __iomem	*ivt_tbl_addr; /*MPI IVT Table Addr */
+	void __iomem	*fatal_tbl_addr; /*MPI IVT Table Addr */
+	union main_cfg_table	main_cfg_tbl;
+	union general_status_table	gs_tbl;
+	struct inbound_queue_table	inbnd_q_tbl[PM8001_MAX_INB_NUM];
+	struct outbound_queue_table	outbnd_q_tbl[PM8001_MAX_OUTB_NUM];
+	struct sas_phy_attribute_table	phy_attr_table;
+					/* MPI SAS PHY attributes */
+	u8			sas_addr[SAS_ADDR_SIZE];
+	struct sas_ha_struct	*sas;/* SCSI/SAS glue */
+	struct Scsi_Host	*shost;
+	u32			chip_id;
+	const struct pm8001_chip_info	*chip;
+	struct completion	*nvmd_completion;
+	unsigned long		*rsvd_tags;
+	struct pm8001_phy	phy[PM8001_MAX_PHYS];
+	struct pm8001_port	port[PM8001_MAX_PHYS];
+	u32			id;
+	u32			irq;
+	u32			iomb_size; /* SPC and SPCV IOMB size */
+	struct pm8001_device	*devices;
+	struct pm8001_ccb_info	*ccb_info;
+	u32			ccb_count;
+#ifdef PM8001_USE_MSIX
+	int			number_of_intr;/*will be used in remove()*/
+	char			intr_drvname[PM8001_MAX_MSIX_VEC]
+				[PM8001_NAME_LENGTH+1+3+1];
+#endif
+#ifdef PM8001_USE_TASKLET
+	struct tasklet_struct	tasklet[PM8001_MAX_MSIX_VEC];
+#endif
+	u32			logging_level;
+	u32			link_rate;
+	u32			fw_status;
+	u32			smp_exp_mode;
+	bool			controller_fatal_error;
+	const struct firmware 	*fw_image;
+	struct isr_param irq_vector[PM8001_MAX_MSIX_VEC];
+	u32			non_fatal_count;
+	u32			non_fatal_read_length;
+	u32 max_q_num;
+	u32 ib_offset;
+	u32 ob_offset;
+	u32 ci_offset;
+	u32 pi_offset;
+	u32 max_memcnt;
+};
+
+struct pm8001_work {
+	struct work_struct work;
+	struct pm8001_hba_info *pm8001_ha;
+	void *data;
+	int handler;
+};
+
+struct pm8001_fw_image_header {
+	u8 vender_id[8];
+	u8 product_id;
+	u8 hardware_rev;
+	u8 dest_partition;
+	u8 reserved;
+	u8 fw_rev[4];
+	__be32  image_length;
+	__be32 image_crc;
+	__be32 startup_entry;
+} __attribute__((packed, aligned(4)));
+
+
+/**
+ * FW Flash Update status values
+ */
+#define FLASH_UPDATE_COMPLETE_PENDING_REBOOT	0x00
+#define FLASH_UPDATE_IN_PROGRESS		0x01
+#define FLASH_UPDATE_HDR_ERR			0x02
+#define FLASH_UPDATE_OFFSET_ERR			0x03
+#define FLASH_UPDATE_CRC_ERR			0x04
+#define FLASH_UPDATE_LENGTH_ERR			0x05
+#define FLASH_UPDATE_HW_ERR			0x06
+#define FLASH_UPDATE_DNLD_NOT_SUPPORTED		0x10
+#define FLASH_UPDATE_DISABLED			0x11
+
+/* Device states */
+#define DS_OPERATIONAL				0x01
+#define DS_PORT_IN_RESET			0x02
+#define DS_IN_RECOVERY				0x03
+#define DS_IN_ERROR				0x04
+#define DS_NON_OPERATIONAL			0x07
+
+/**
+ * brief param structure for firmware flash update.
+ */
+struct fw_flash_updata_info {
+	u32			cur_image_offset;
+	u32			cur_image_len;
+	u32			total_image_len;
+	struct pm8001_prd	sgl;
+};
+
+struct fw_control_info {
+	u32			retcode;/*ret code (status)*/
+	u32			phase;/*ret code phase*/
+	u32			phaseCmplt;/*percent complete for the current
+	update phase */
+	u32			version;/*Hex encoded firmware version number*/
+	u32			offset;/*Used for downloading firmware	*/
+	u32			len; /*len of buffer*/
+	u32			size;/* Used in OS VPD and Trace get size
+	operations.*/
+	u32			reserved;/* padding required for 64 bit
+	alignment */
+	u8			buffer[];/* Start of buffer */
+};
+struct fw_control_ex {
+	struct fw_control_info *fw_control;
+	void			*buffer;/* keep buffer pointer to be
+	freed when the response comes*/
+	void			*virtAddr;/* keep virtual address of the data */
+	void			*usrAddr;/* keep virtual address of the
+	user data */
+	dma_addr_t		phys_addr;
+	u32			len; /* len of buffer  */
+	void			*payload; /* pointer to IOCTL Payload */
+	u8			inProgress;/*if 1 - the IOCTL request is in
+	progress */
+	void			*param1;
+	void			*param2;
+	void			*param3;
+};
+
+/* pm8001 workqueue */
+extern struct workqueue_struct *pm8001_wq;
+
+/******************** function prototype *********************/
+int pm8001_tag_alloc(struct pm8001_hba_info *pm8001_ha, u32 *tag_out);
+u32 pm8001_get_ncq_tag(struct sas_task *task, u32 *tag);
+void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha,
+			  struct pm8001_ccb_info *ccb);
+int pm8001_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func,
+	void *funcdata);
+void pm8001_scan_start(struct Scsi_Host *shost);
+int pm8001_scan_finished(struct Scsi_Host *shost, unsigned long time);
+int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags);
+int pm8001_abort_task(struct sas_task *task);
+int pm8001_clear_task_set(struct domain_device *dev, u8 *lun);
+int pm8001_dev_found(struct domain_device *dev);
+void pm8001_dev_gone(struct domain_device *dev);
+int pm8001_lu_reset(struct domain_device *dev, u8 *lun);
+int pm8001_I_T_nexus_reset(struct domain_device *dev);
+int pm8001_I_T_nexus_event_handler(struct domain_device *dev);
+int pm8001_query_task(struct sas_task *task);
+void pm8001_port_formed(struct asd_sas_phy *sas_phy);
+void pm8001_open_reject_retry(
+	struct pm8001_hba_info *pm8001_ha,
+	struct sas_task *task_to_close,
+	struct pm8001_device *device_to_close);
+int pm8001_mem_alloc(struct pci_dev *pdev, void **virt_addr,
+	dma_addr_t *pphys_addr, u32 *pphys_addr_hi, u32 *pphys_addr_lo,
+	u32 mem_size, u32 align);
+
+void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha);
+int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
+			u32 q_index, u32 opCode, void *payload, size_t nb,
+			u32 responseQueue);
+int pm8001_mpi_msg_free_get(struct inbound_queue_table *circularQ,
+				u16 messageSize, void **messagePtr);
+u32 pm8001_mpi_msg_free_set(struct pm8001_hba_info *pm8001_ha, void *pMsg,
+			struct outbound_queue_table *circularQ, u8 bc);
+u32 pm8001_mpi_msg_consume(struct pm8001_hba_info *pm8001_ha,
+			struct outbound_queue_table *circularQ,
+			void **messagePtr1, u8 *pBC);
+int pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
+			struct pm8001_device *pm8001_dev, u32 state);
+int pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
+					void *payload);
+int pm8001_chip_fw_flash_update_build(struct pm8001_hba_info *pm8001_ha,
+					void *fw_flash_updata_info, u32 tag);
+int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha, void *payload);
+int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha, void *payload);
+int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
+				struct pm8001_ccb_info *ccb,
+				struct sas_tmf_task *tmf);
+int pm8001_chip_abort_task(struct pm8001_hba_info *pm8001_ha,
+				struct pm8001_ccb_info *ccb);
+int pm8001_chip_dereg_dev_req(struct pm8001_hba_info *pm8001_ha, u32 device_id);
+void pm8001_chip_make_sg(struct scatterlist *scatter, int nr, void *prd);
+void pm8001_work_fn(struct work_struct *work);
+int pm8001_handle_event(struct pm8001_hba_info *pm8001_ha,
+					void *data, int handler);
+void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
+							void *piomb);
+void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha,
+							void *piomb);
+void pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha,
+							void *piomb);
+int pm8001_mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha,
+							void *piomb);
+void pm8001_get_lrate_mode(struct pm8001_phy *phy, u8 link_rate);
+void pm8001_get_attached_sas_addr(struct pm8001_phy *phy, u8 *sas_addr);
+void pm8001_bytes_dmaed(struct pm8001_hba_info *pm8001_ha, int i);
+int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb);
+int pm8001_mpi_dereg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb);
+int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
+							void *piomb);
+int pm8001_mpi_general_event(struct pm8001_hba_info *pm8001_ha, void *piomb);
+int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb);
+struct sas_task *pm8001_alloc_task(void);
+void pm8001_free_task(struct sas_task *task);
+void pm8001_tag_free(struct pm8001_hba_info *pm8001_ha, u32 tag);
+struct pm8001_device *pm8001_find_dev(struct pm8001_hba_info *pm8001_ha,
+					u32 device_id);
+int pm80xx_set_thermal_config(struct pm8001_hba_info *pm8001_ha);
+
+int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue);
+void pm8001_set_phy_profile(struct pm8001_hba_info *pm8001_ha,
+	u32 length, u8 *buf);
+void pm8001_set_phy_profile_single(struct pm8001_hba_info *pm8001_ha,
+		u32 phy, u32 length, u32 *buf);
+int pm80xx_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue);
+ssize_t pm80xx_get_fatal_dump(struct device *cdev,
+		struct device_attribute *attr, char *buf);
+ssize_t pm80xx_get_non_fatal_dump(struct device *cdev,
+		struct device_attribute *attr, char *buf);
+ssize_t pm8001_get_gsm_dump(struct device *cdev, u32, char *buf);
+int pm80xx_fatal_errors(struct pm8001_hba_info *pm8001_ha);
+void pm8001_free_dev(struct pm8001_device *pm8001_dev);
+/* ctl shared API */
+extern const struct attribute_group *pm8001_host_groups[];
+
+#define PM8001_INVALID_TAG	((u32)-1)
+
+/*
+ * Allocate a new tag and return the corresponding ccb after initializing it.
+ */
+static inline struct pm8001_ccb_info *
+pm8001_ccb_alloc(struct pm8001_hba_info *pm8001_ha,
+		 struct pm8001_device *dev, struct sas_task *task)
+{
+	struct pm8001_ccb_info *ccb;
+	struct request *rq = NULL;
+	u32 tag;
+
+	if (task)
+		rq = sas_task_find_rq(task);
+
+	if (rq) {
+		tag = rq->tag + PM8001_RESERVE_SLOT;
+	} else if (pm8001_tag_alloc(pm8001_ha, &tag)) {
+		pm8001_dbg(pm8001_ha, FAIL, "Failed to allocate a tag\n");
+		return NULL;
+	}
+
+	ccb = &pm8001_ha->ccb_info[tag];
+	ccb->task = task;
+	ccb->n_elem = 0;
+	ccb->ccb_tag = tag;
+	ccb->device = dev;
+	ccb->fw_control_context = NULL;
+	ccb->open_retry = 0;
+
+	return ccb;
+}
+
+/*
+ * Free the tag of an initialized ccb.
+ */
+static inline void pm8001_ccb_free(struct pm8001_hba_info *pm8001_ha,
+				   struct pm8001_ccb_info *ccb)
+{
+	u32 tag = ccb->ccb_tag;
+
+	/*
+	 * Cleanup the ccb to make sure that a manual scan of the adapter
+	 * ccb_info array can detect ccb's that are in use.
+	 * C.f. pm8001_open_reject_retry()
+	 */
+	ccb->task = NULL;
+	ccb->ccb_tag = PM8001_INVALID_TAG;
+	ccb->device = NULL;
+	ccb->fw_control_context = NULL;
+
+	pm8001_tag_free(pm8001_ha, tag);
+}
+
+static inline void pm8001_ccb_task_free_done(struct pm8001_hba_info *pm8001_ha,
+					     struct pm8001_ccb_info *ccb)
+{
+	struct sas_task *task = ccb->task;
+
+	pm8001_ccb_task_free(pm8001_ha, ccb);
+	smp_mb(); /*in order to force CPU ordering*/
+	task->task_done(task);
+}
+void pm8001_setds_completion(struct domain_device *dev);
+void pm8001_tmf_aborted(struct sas_task *task);
+
+#endif
+