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, 666 insertions, 0 deletions

diff --git a/drivers/scsi/csiostor/csio_hw.h b/drivers/scsi/csiostor/csio_hw.h
new file mode 100644
index 000000000..e351af6e7
--- /dev/null
+++ b/drivers/scsi/csiostor/csio_hw.h
@@ -0,0 +1,666 @@
+/*
+ * This file is part of the Chelsio FCoE driver for Linux.
+ *
+ * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __CSIO_HW_H__
+#define __CSIO_HW_H__
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/device.h>
+#include <linux/workqueue.h>
+#include <linux/compiler.h>
+#include <linux/cdev.h>
+#include <linux/list.h>
+#include <linux/mempool.h>
+#include <linux/io.h>
+#include <linux/spinlock_types.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_transport_fc.h>
+
+#include "t4_hw.h"
+#include "csio_hw_chip.h"
+#include "csio_wr.h"
+#include "csio_mb.h"
+#include "csio_scsi.h"
+#include "csio_defs.h"
+#include "t4_regs.h"
+#include "t4_msg.h"
+
+/*
+ * An error value used by host. Should not clash with FW defined return values.
+ */
+#define	FW_HOSTERROR			255
+
+#define CSIO_HW_NAME		"Chelsio FCoE Adapter"
+#define CSIO_MAX_PFN		8
+#define CSIO_MAX_PPORTS		4
+
+#define CSIO_MAX_LUN		0xFFFF
+#define CSIO_MAX_QUEUE		2048
+#define CSIO_MAX_CMD_PER_LUN	32
+#define CSIO_MAX_DDP_BUF_SIZE	(1024 * 1024)
+#define CSIO_MAX_SECTOR_SIZE	128
+#define CSIO_MIN_T6_FW		0x01102D00  /* FW 1.16.45.0 */
+
+/* Interrupts */
+#define CSIO_EXTRA_MSI_IQS	2	/* Extra iqs for INTX/MSI mode
+					 * (Forward intr iq + fw iq) */
+#define CSIO_EXTRA_VECS		2	/* non-data + FW evt */
+#define CSIO_MAX_SCSI_CPU	128
+#define CSIO_MAX_SCSI_QSETS	(CSIO_MAX_SCSI_CPU * CSIO_MAX_PPORTS)
+#define CSIO_MAX_MSIX_VECS	(CSIO_MAX_SCSI_QSETS + CSIO_EXTRA_VECS)
+
+/* Queues */
+enum {
+	CSIO_INTR_WRSIZE = 128,
+	CSIO_INTR_IQSIZE = ((CSIO_MAX_MSIX_VECS + 1) * CSIO_INTR_WRSIZE),
+	CSIO_FWEVT_WRSIZE = 128,
+	CSIO_FWEVT_IQLEN = 128,
+	CSIO_FWEVT_FLBUFS = 64,
+	CSIO_FWEVT_IQSIZE = (CSIO_FWEVT_WRSIZE * CSIO_FWEVT_IQLEN),
+	CSIO_HW_NIQ = 1,
+	CSIO_HW_NFLQ = 1,
+	CSIO_HW_NEQ = 1,
+	CSIO_HW_NINTXQ = 1,
+};
+
+struct csio_msix_entries {
+	void		*dev_id;	/* Priv object associated w/ this msix*/
+	char		desc[24];	/* Description of this vector */
+};
+
+struct csio_scsi_qset {
+	int		iq_idx;		/* Ingress index */
+	int		eq_idx;		/* Egress index */
+	uint32_t	intr_idx;	/* MSIX Vector index */
+};
+
+struct csio_scsi_cpu_info {
+	int16_t	max_cpus;
+};
+
+extern int csio_dbg_level;
+extern unsigned int csio_port_mask;
+extern int csio_msi;
+
+#define CSIO_VENDOR_ID				0x1425
+#define CSIO_ASIC_DEVID_PROTO_MASK		0xFF00
+#define CSIO_ASIC_DEVID_TYPE_MASK		0x00FF
+
+#define CSIO_GLBL_INTR_MASK	(CIM_F | MPS_F | PL_F | PCIE_F | MC_F | \
+				 EDC0_F | EDC1_F | LE_F | TP_F | MA_F | \
+				 PM_TX_F | PM_RX_F | ULP_RX_F | \
+				 CPL_SWITCH_F | SGE_F | ULP_TX_F | SF_F)
+
+/*
+ * Hard parameters used to initialize the card in the absence of a
+ * configuration file.
+ */
+enum {
+	/* General */
+	CSIO_SGE_DBFIFO_INT_THRESH	= 10,
+
+	CSIO_SGE_RX_DMA_OFFSET		= 2,
+
+	CSIO_SGE_FLBUF_SIZE1		= 65536,
+	CSIO_SGE_FLBUF_SIZE2		= 1536,
+	CSIO_SGE_FLBUF_SIZE3		= 9024,
+	CSIO_SGE_FLBUF_SIZE4		= 9216,
+	CSIO_SGE_FLBUF_SIZE5		= 2048,
+	CSIO_SGE_FLBUF_SIZE6		= 128,
+	CSIO_SGE_FLBUF_SIZE7		= 8192,
+	CSIO_SGE_FLBUF_SIZE8		= 16384,
+
+	CSIO_SGE_TIMER_VAL_0		= 5,
+	CSIO_SGE_TIMER_VAL_1		= 10,
+	CSIO_SGE_TIMER_VAL_2		= 20,
+	CSIO_SGE_TIMER_VAL_3		= 50,
+	CSIO_SGE_TIMER_VAL_4		= 100,
+	CSIO_SGE_TIMER_VAL_5		= 200,
+
+	CSIO_SGE_INT_CNT_VAL_0		= 1,
+	CSIO_SGE_INT_CNT_VAL_1		= 4,
+	CSIO_SGE_INT_CNT_VAL_2		= 8,
+	CSIO_SGE_INT_CNT_VAL_3		= 16,
+};
+
+/* Slowpath events */
+enum csio_evt {
+	CSIO_EVT_FW  = 0,	/* FW event */
+	CSIO_EVT_MBX,		/* MBX event */
+	CSIO_EVT_SCN,		/* State change notification */
+	CSIO_EVT_DEV_LOSS,	/* Device loss event */
+	CSIO_EVT_MAX,		/* Max supported event */
+};
+
+#define CSIO_EVT_MSG_SIZE	512
+#define CSIO_EVTQ_SIZE		512
+
+/* Event msg  */
+struct csio_evt_msg {
+	struct list_head	list;	/* evt queue*/
+	enum csio_evt		type;
+	uint8_t			data[CSIO_EVT_MSG_SIZE];
+};
+
+enum {
+	SERNUM_LEN     = 16,    /* Serial # length */
+	EC_LEN         = 16,    /* E/C length */
+	ID_LEN         = 16,    /* ID length */
+};
+
+enum {
+	SF_SIZE = SF_SEC_SIZE * 16,   /* serial flash size */
+};
+
+/* serial flash and firmware constants */
+enum {
+	SF_ATTEMPTS = 10,             /* max retries for SF operations */
+
+	/* flash command opcodes */
+	SF_PROG_PAGE    = 2,          /* program page */
+	SF_WR_DISABLE   = 4,          /* disable writes */
+	SF_RD_STATUS    = 5,          /* read status register */
+	SF_WR_ENABLE    = 6,          /* enable writes */
+	SF_RD_DATA_FAST = 0xb,        /* read flash */
+	SF_RD_ID	= 0x9f,	      /* read ID */
+	SF_ERASE_SECTOR = 0xd8,       /* erase sector */
+};
+
+/* Management module */
+enum {
+	CSIO_MGMT_EQ_WRSIZE = 512,
+	CSIO_MGMT_IQ_WRSIZE = 128,
+	CSIO_MGMT_EQLEN = 64,
+	CSIO_MGMT_IQLEN = 64,
+};
+
+#define CSIO_MGMT_EQSIZE	(CSIO_MGMT_EQLEN * CSIO_MGMT_EQ_WRSIZE)
+#define CSIO_MGMT_IQSIZE	(CSIO_MGMT_IQLEN * CSIO_MGMT_IQ_WRSIZE)
+
+/* mgmt module stats */
+struct csio_mgmtm_stats {
+	uint32_t	n_abort_req;		/* Total abort request */
+	uint32_t	n_abort_rsp;		/* Total abort response */
+	uint32_t	n_close_req;		/* Total close request */
+	uint32_t	n_close_rsp;		/* Total close response */
+	uint32_t	n_err;			/* Total Errors */
+	uint32_t	n_drop;			/* Total request dropped */
+	uint32_t	n_active;		/* Count of active_q */
+	uint32_t	n_cbfn;			/* Count of cbfn_q */
+};
+
+/* MGMT module */
+struct csio_mgmtm {
+	struct	csio_hw		*hw;		/* Pointer to HW moduel */
+	int			eq_idx;		/* Egress queue index */
+	int			iq_idx;		/* Ingress queue index */
+	int			msi_vec;	/* MSI vector */
+	struct list_head	active_q;	/* Outstanding ELS/CT */
+	struct list_head	abort_q;	/* Outstanding abort req */
+	struct list_head	cbfn_q;		/* Completion queue */
+	struct list_head	mgmt_req_freelist; /* Free poll of reqs */
+						/* ELSCT request freelist*/
+	struct timer_list	mgmt_timer;	/* MGMT timer */
+	struct csio_mgmtm_stats stats;		/* ELS/CT stats */
+};
+
+struct csio_adap_desc {
+	char model_no[16];
+	char description[32];
+};
+
+struct pci_params {
+	uint16_t   vendor_id;
+	uint16_t   device_id;
+	int        vpd_cap_addr;
+	uint16_t   speed;
+	uint8_t    width;
+};
+
+/* User configurable hw parameters */
+struct csio_hw_params {
+	uint32_t		sf_size;		/* serial flash
+							 * size in bytes
+							 */
+	uint32_t		sf_nsec;		/* # of flash sectors */
+	struct pci_params	pci;
+	uint32_t		log_level;		/* Module-level for
+							 * debug log.
+							 */
+};
+
+struct csio_vpd {
+	uint32_t cclk;
+	uint8_t ec[EC_LEN + 1];
+	uint8_t sn[SERNUM_LEN + 1];
+	uint8_t id[ID_LEN + 1];
+};
+
+/* Firmware Port Capabilities types. */
+
+typedef u16 fw_port_cap16_t;    /* 16-bit Port Capabilities integral value */
+typedef u32 fw_port_cap32_t;    /* 32-bit Port Capabilities integral value */
+
+enum fw_caps {
+	FW_CAPS_UNKNOWN = 0,    /* 0'ed out initial state */
+	FW_CAPS16       = 1,    /* old Firmware: 16-bit Port Capabilities */
+	FW_CAPS32       = 2,    /* new Firmware: 32-bit Port Capabilities */
+};
+
+enum cc_pause {
+	PAUSE_RX      = 1 << 0,
+	PAUSE_TX      = 1 << 1,
+	PAUSE_AUTONEG = 1 << 2
+};
+
+enum cc_fec {
+	FEC_AUTO	= 1 << 0,  /* IEEE 802.3 "automatic" */
+	FEC_RS		= 1 << 1,  /* Reed-Solomon */
+	FEC_BASER_RS	= 1 << 2   /* BaseR/Reed-Solomon */
+};
+
+struct link_config {
+	fw_port_cap32_t pcaps;		/* link capabilities */
+	fw_port_cap32_t def_acaps;	/* default advertised capabilities */
+	fw_port_cap32_t acaps;		/* advertised capabilities */
+	fw_port_cap32_t lpacaps;	/* peer advertised capabilities */
+
+	fw_port_cap32_t speed_caps;	/* speed(s) user has requested */
+	unsigned int   speed;		/* actual link speed (Mb/s) */
+
+	enum cc_pause  requested_fc;	/* flow control user has requested */
+	enum cc_pause  fc;		/* actual link flow control */
+
+	enum cc_fec    requested_fec;	/* Forward Error Correction: */
+	enum cc_fec    fec;		/* requested and actual in use */
+
+	unsigned char  autoneg;		/* autonegotiating? */
+
+	unsigned char  link_ok;		/* link up? */
+	unsigned char  link_down_rc;	/* link down reason */
+};
+
+#define FW_LEN16(fw_struct) FW_CMD_LEN16_V(sizeof(fw_struct) / 16)
+
+#define ADVERT_MASK (FW_PORT_CAP32_SPEED_V(FW_PORT_CAP32_SPEED_M) | \
+		     FW_PORT_CAP32_ANEG)
+
+/* Enable or disable autonegotiation. */
+#define AUTONEG_DISABLE	0x00
+#define AUTONEG_ENABLE	0x01
+
+struct csio_pport {
+	uint16_t	pcap;
+	uint16_t	acap;
+	uint8_t		portid;
+	uint8_t		link_status;
+	uint16_t	link_speed;
+	uint8_t		mac[6];
+	uint8_t		mod_type;
+	uint8_t		rsvd1;
+	uint8_t		rsvd2;
+	uint8_t		rsvd3;
+	struct link_config link_cfg;
+};
+
+/* fcoe resource information */
+struct csio_fcoe_res_info {
+	uint16_t	e_d_tov;
+	uint16_t	r_a_tov_seq;
+	uint16_t	r_a_tov_els;
+	uint16_t	r_r_tov;
+	uint32_t	max_xchgs;
+	uint32_t	max_ssns;
+	uint32_t	used_xchgs;
+	uint32_t	used_ssns;
+	uint32_t	max_fcfs;
+	uint32_t	max_vnps;
+	uint32_t	used_fcfs;
+	uint32_t	used_vnps;
+};
+
+/* HW State machine Events */
+enum csio_hw_ev {
+	CSIO_HWE_CFG = (uint32_t)1, /* Starts off the State machine */
+	CSIO_HWE_INIT,	         /* Config done, start Init      */
+	CSIO_HWE_INIT_DONE,      /* Init Mailboxes sent, HW ready */
+	CSIO_HWE_FATAL,		 /* Fatal error during initialization */
+	CSIO_HWE_PCIERR_DETECTED,/* PCI error recovery detetced */
+	CSIO_HWE_PCIERR_SLOT_RESET, /* Slot reset after PCI recoviery */
+	CSIO_HWE_PCIERR_RESUME,  /* Resume after PCI error recovery */
+	CSIO_HWE_QUIESCED,	 /* HBA quiesced */
+	CSIO_HWE_HBA_RESET,      /* HBA reset requested */
+	CSIO_HWE_HBA_RESET_DONE, /* HBA reset completed */
+	CSIO_HWE_FW_DLOAD,       /* FW download requested */
+	CSIO_HWE_PCI_REMOVE,     /* PCI de-instantiation */
+	CSIO_HWE_SUSPEND,        /* HW suspend for Online(hot) replacement */
+	CSIO_HWE_RESUME,         /* HW resume for Online(hot) replacement */
+	CSIO_HWE_MAX,		 /* Max HW event */
+};
+
+/* hw stats */
+struct csio_hw_stats {
+	uint32_t	n_evt_activeq;	/* Number of event in active Q */
+	uint32_t	n_evt_freeq;	/* Number of event in free Q */
+	uint32_t	n_evt_drop;	/* Number of event droped */
+	uint32_t	n_evt_unexp;	/* Number of unexpected events */
+	uint32_t	n_pcich_offline;/* Number of pci channel offline */
+	uint32_t	n_lnlkup_miss;  /* Number of lnode lookup miss */
+	uint32_t	n_cpl_fw6_msg;	/* Number of cpl fw6 message*/
+	uint32_t	n_cpl_fw6_pld;	/* Number of cpl fw6 payload*/
+	uint32_t	n_cpl_unexp;	/* Number of unexpected cpl */
+	uint32_t	n_mbint_unexp;	/* Number of unexpected mbox */
+					/* interrupt */
+	uint32_t	n_plint_unexp;	/* Number of unexpected PL */
+					/* interrupt */
+	uint32_t	n_plint_cnt;	/* Number of PL interrupt */
+	uint32_t	n_int_stray;	/* Number of stray interrupt */
+	uint32_t	n_err;		/* Number of hw errors */
+	uint32_t	n_err_fatal;	/* Number of fatal errors */
+	uint32_t	n_err_nomem;	/* Number of memory alloc failure */
+	uint32_t	n_err_io;	/* Number of IO failure */
+	enum csio_hw_ev	n_evt_sm[CSIO_HWE_MAX];	/* Number of sm events */
+	uint64_t	n_reset_start;  /* Start time after the reset */
+	uint32_t	rsvd1;
+};
+
+/* Defines for hw->flags */
+#define CSIO_HWF_MASTER			0x00000001	/* This is the Master
+							 * function for the
+							 * card.
+							 */
+#define	CSIO_HWF_HW_INTR_ENABLED	0x00000002	/* Are HW Interrupt
+							 * enable bit set?
+							 */
+#define	CSIO_HWF_FWEVT_PENDING		0x00000004	/* FW events pending */
+#define	CSIO_HWF_Q_MEM_ALLOCED		0x00000008	/* Queues have been
+							 * allocated memory.
+							 */
+#define	CSIO_HWF_Q_FW_ALLOCED		0x00000010	/* Queues have been
+							 * allocated in FW.
+							 */
+#define CSIO_HWF_VPD_VALID		0x00000020	/* Valid VPD copied */
+#define CSIO_HWF_DEVID_CACHED		0X00000040	/* PCI vendor & device
+							 * id cached */
+#define	CSIO_HWF_FWEVT_STOP		0x00000080	/* Stop processing
+							 * FW events
+							 */
+#define CSIO_HWF_USING_SOFT_PARAMS	0x00000100      /* Using FW config
+							 * params
+							 */
+#define	CSIO_HWF_HOST_INTR_ENABLED	0x00000200	/* Are host interrupts
+							 * enabled?
+							 */
+#define CSIO_HWF_ROOT_NO_RELAXED_ORDERING 0x00000400	/* Is PCIe relaxed
+							 * ordering enabled
+							 */
+
+#define csio_is_hw_intr_enabled(__hw)	\
+				((__hw)->flags & CSIO_HWF_HW_INTR_ENABLED)
+#define csio_is_host_intr_enabled(__hw)	\
+				((__hw)->flags & CSIO_HWF_HOST_INTR_ENABLED)
+#define csio_is_hw_master(__hw)		((__hw)->flags & CSIO_HWF_MASTER)
+#define csio_is_valid_vpd(__hw)		((__hw)->flags & CSIO_HWF_VPD_VALID)
+#define csio_is_dev_id_cached(__hw)	((__hw)->flags & CSIO_HWF_DEVID_CACHED)
+#define csio_valid_vpd_copied(__hw)	((__hw)->flags |= CSIO_HWF_VPD_VALID)
+#define csio_dev_id_cached(__hw)	((__hw)->flags |= CSIO_HWF_DEVID_CACHED)
+
+/* Defines for intr_mode */
+enum csio_intr_mode {
+	CSIO_IM_NONE = 0,
+	CSIO_IM_INTX = 1,
+	CSIO_IM_MSI  = 2,
+	CSIO_IM_MSIX = 3,
+};
+
+/* Master HW structure: One per function */
+struct csio_hw {
+	struct csio_sm		sm;			/* State machine: should
+							 * be the 1st member.
+							 */
+	spinlock_t		lock;			/* Lock for hw */
+
+	struct csio_scsim	scsim;			/* SCSI module*/
+	struct csio_wrm		wrm;			/* Work request module*/
+	struct pci_dev		*pdev;			/* PCI device */
+
+	void __iomem		*regstart;		/* Virtual address of
+							 * register map
+							 */
+	/* SCSI queue sets */
+	uint32_t		num_sqsets;		/* Number of SCSI
+							 * queue sets */
+	uint32_t		num_scsi_msix_cpus;	/* Number of CPUs that
+							 * will be used
+							 * for ingress
+							 * processing.
+							 */
+
+	struct csio_scsi_qset	sqset[CSIO_MAX_PPORTS][CSIO_MAX_SCSI_CPU];
+	struct csio_scsi_cpu_info scsi_cpu_info[CSIO_MAX_PPORTS];
+
+	uint32_t		evtflag;		/* Event flag  */
+	uint32_t		flags;			/* HW flags */
+
+	struct csio_mgmtm	mgmtm;			/* management module */
+	struct csio_mbm		mbm;			/* Mailbox module */
+
+	/* Lnodes */
+	uint32_t		num_lns;		/* Number of lnodes */
+	struct csio_lnode	*rln;			/* Root lnode */
+	struct list_head	sln_head;		/* Sibling node list
+							 * list
+							 */
+	int			intr_iq_idx;		/* Forward interrupt
+							 * queue.
+							 */
+	int			fwevt_iq_idx;		/* FW evt queue */
+	struct work_struct	evtq_work;		/* Worker thread for
+							 * HW events.
+							 */
+	struct list_head	evt_free_q;		/* freelist of evt
+							 * elements
+							 */
+	struct list_head	evt_active_q;		/* active evt queue*/
+
+	/* board related info */
+	char			name[32];
+	char			hw_ver[16];
+	char			model_desc[32];
+	char			drv_version[32];
+	char			fwrev_str[32];
+	uint32_t		optrom_ver;
+	uint32_t		fwrev;
+	uint32_t		tp_vers;
+	char			chip_ver;
+	uint16_t		chip_id;		/* Tells T4/T5 chip */
+	enum csio_dev_state	fw_state;
+	struct csio_vpd		vpd;
+
+	uint8_t			pfn;			/* Physical Function
+							 * number
+							 */
+	uint32_t		port_vec;		/* Port vector */
+	uint8_t			num_pports;		/* Number of physical
+							 * ports.
+							 */
+	uint8_t			rst_retries;		/* Reset retries */
+	uint8_t			cur_evt;		/* current s/m evt */
+	uint8_t			prev_evt;		/* Previous s/m evt */
+	uint32_t		dev_num;		/* device number */
+	struct csio_pport	pport[CSIO_MAX_PPORTS];	/* Ports (XGMACs) */
+	struct csio_hw_params	params;			/* Hw parameters */
+
+	struct dma_pool		*scsi_dma_pool;		/* DMA pool for SCSI */
+	mempool_t		*mb_mempool;		/* Mailbox memory pool*/
+	mempool_t		*rnode_mempool;		/* rnode memory pool */
+
+	/* Interrupt */
+	enum csio_intr_mode	intr_mode;		/* INTx, MSI, MSIX */
+	uint32_t		fwevt_intr_idx;		/* FW evt MSIX/interrupt
+							 * index
+							 */
+	uint32_t		nondata_intr_idx;	/* nondata MSIX/intr
+							 * idx
+							 */
+
+	uint8_t			cfg_neq;		/* FW configured no of
+							 * egress queues
+							 */
+	uint8_t			cfg_niq;		/* FW configured no of
+							 * iq queues.
+							 */
+
+	struct csio_fcoe_res_info  fres_info;		/* Fcoe resource info */
+	struct csio_hw_chip_ops	*chip_ops;		/* T4/T5 Chip specific
+							 * Operations
+							 */
+
+	/* MSIX vectors */
+	struct csio_msix_entries msix_entries[CSIO_MAX_MSIX_VECS];
+
+	struct dentry		*debugfs_root;		/* Debug FS */
+	struct csio_hw_stats	stats;			/* Hw statistics */
+};
+
+/* Register access macros */
+#define csio_reg(_b, _r)		((_b) + (_r))
+
+#define	csio_rd_reg8(_h, _r)		readb(csio_reg((_h)->regstart, (_r)))
+#define	csio_rd_reg16(_h, _r)		readw(csio_reg((_h)->regstart, (_r)))
+#define	csio_rd_reg32(_h, _r)		readl(csio_reg((_h)->regstart, (_r)))
+#define	csio_rd_reg64(_h, _r)		readq(csio_reg((_h)->regstart, (_r)))
+
+#define	csio_wr_reg8(_h, _v, _r)	writeb((_v), \
+						csio_reg((_h)->regstart, (_r)))
+#define	csio_wr_reg16(_h, _v, _r)	writew((_v), \
+						csio_reg((_h)->regstart, (_r)))
+#define	csio_wr_reg32(_h, _v, _r)	writel((_v), \
+						csio_reg((_h)->regstart, (_r)))
+#define	csio_wr_reg64(_h, _v, _r)	writeq((_v), \
+						csio_reg((_h)->regstart, (_r)))
+
+void csio_set_reg_field(struct csio_hw *, uint32_t, uint32_t, uint32_t);
+
+/* Core clocks <==> uSecs */
+static inline uint32_t
+csio_core_ticks_to_us(struct csio_hw *hw, uint32_t ticks)
+{
+	/* add Core Clock / 2 to round ticks to nearest uS */
+	return (ticks * 1000 + hw->vpd.cclk/2) / hw->vpd.cclk;
+}
+
+static inline uint32_t
+csio_us_to_core_ticks(struct csio_hw *hw, uint32_t us)
+{
+	return (us * hw->vpd.cclk) / 1000;
+}
+
+/* Easy access macros */
+#define csio_hw_to_wrm(hw)		((struct csio_wrm *)(&(hw)->wrm))
+#define csio_hw_to_mbm(hw)		((struct csio_mbm *)(&(hw)->mbm))
+#define csio_hw_to_scsim(hw)		((struct csio_scsim *)(&(hw)->scsim))
+#define csio_hw_to_mgmtm(hw)		((struct csio_mgmtm *)(&(hw)->mgmtm))
+
+#define CSIO_PCI_BUS(hw)		((hw)->pdev->bus->number)
+#define CSIO_PCI_DEV(hw)		(PCI_SLOT((hw)->pdev->devfn))
+#define CSIO_PCI_FUNC(hw)		(PCI_FUNC((hw)->pdev->devfn))
+
+#define csio_set_fwevt_intr_idx(_h, _i)		((_h)->fwevt_intr_idx = (_i))
+#define csio_get_fwevt_intr_idx(_h)		((_h)->fwevt_intr_idx)
+#define csio_set_nondata_intr_idx(_h, _i)	((_h)->nondata_intr_idx = (_i))
+#define csio_get_nondata_intr_idx(_h)		((_h)->nondata_intr_idx)
+
+/* Printing/logging */
+#define CSIO_DEVID(__dev)		((__dev)->dev_num)
+#define CSIO_DEVID_LO(__dev)		(CSIO_DEVID((__dev)) & 0xFFFF)
+#define CSIO_DEVID_HI(__dev)		((CSIO_DEVID((__dev)) >> 16) & 0xFFFF)
+
+#define csio_info(__hw, __fmt, ...)					\
+			dev_info(&(__hw)->pdev->dev, __fmt, ##__VA_ARGS__)
+
+#define csio_fatal(__hw, __fmt, ...)					\
+			dev_crit(&(__hw)->pdev->dev, __fmt, ##__VA_ARGS__)
+
+#define csio_err(__hw, __fmt, ...)					\
+			dev_err(&(__hw)->pdev->dev, __fmt, ##__VA_ARGS__)
+
+#define csio_warn(__hw, __fmt, ...)					\
+			dev_warn(&(__hw)->pdev->dev, __fmt, ##__VA_ARGS__)
+
+#ifdef __CSIO_DEBUG__
+#define csio_dbg(__hw, __fmt, ...)					\
+			csio_info((__hw), __fmt, ##__VA_ARGS__);
+#else
+#define csio_dbg(__hw, __fmt, ...)
+#endif
+
+int csio_hw_wait_op_done_val(struct csio_hw *, int, uint32_t, int,
+			     int, int, uint32_t *);
+void csio_hw_tp_wr_bits_indirect(struct csio_hw *, unsigned int,
+				 unsigned int, unsigned int);
+int csio_mgmt_req_lookup(struct csio_mgmtm *, struct csio_ioreq *);
+void csio_hw_intr_disable(struct csio_hw *);
+int csio_hw_slow_intr_handler(struct csio_hw *);
+int csio_handle_intr_status(struct csio_hw *, unsigned int,
+			    const struct intr_info *);
+
+fw_port_cap32_t fwcap_to_fwspeed(fw_port_cap32_t acaps);
+fw_port_cap32_t fwcaps16_to_caps32(fw_port_cap16_t caps16);
+fw_port_cap16_t fwcaps32_to_caps16(fw_port_cap32_t caps32);
+fw_port_cap32_t lstatus_to_fwcap(u32 lstatus);
+
+int csio_hw_start(struct csio_hw *);
+int csio_hw_stop(struct csio_hw *);
+int csio_hw_reset(struct csio_hw *);
+int csio_is_hw_ready(struct csio_hw *);
+int csio_is_hw_removing(struct csio_hw *);
+
+int csio_fwevtq_handler(struct csio_hw *);
+void csio_evtq_worker(struct work_struct *);
+int csio_enqueue_evt(struct csio_hw *, enum csio_evt, void *, uint16_t);
+void csio_evtq_flush(struct csio_hw *hw);
+
+int csio_request_irqs(struct csio_hw *);
+void csio_intr_enable(struct csio_hw *);
+void csio_intr_disable(struct csio_hw *, bool);
+void csio_hw_fatal_err(struct csio_hw *);
+
+struct csio_lnode *csio_lnode_alloc(struct csio_hw *);
+int csio_config_queues(struct csio_hw *);
+
+int csio_hw_init(struct csio_hw *);
+void csio_hw_exit(struct csio_hw *);
+#endif /* ifndef __CSIO_HW_H__ */