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, 1464 insertions, 0 deletions

diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_device.c b/drivers/net/ethernet/cavium/liquidio/octeon_device.c
new file mode 100644
index 000000000..e159194d0
--- /dev/null
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.c
@@ -0,0 +1,1464 @@
+/**********************************************************************
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/vmalloc.h>
+#include "liquidio_common.h"
+#include "octeon_droq.h"
+#include "octeon_iq.h"
+#include "response_manager.h"
+#include "octeon_device.h"
+#include "octeon_main.h"
+#include "octeon_network.h"
+#include "cn66xx_regs.h"
+#include "cn66xx_device.h"
+#include "cn23xx_pf_device.h"
+#include "cn23xx_vf_device.h"
+
+/** Default configuration
+ *  for CN66XX OCTEON Models.
+ */
+static struct octeon_config default_cn66xx_conf = {
+	.card_type                              = LIO_210SV,
+	.card_name                              = LIO_210SV_NAME,
+
+	/** IQ attributes */
+	.iq					= {
+		.max_iqs			= CN6XXX_CFG_IO_QUEUES,
+		.pending_list_size		=
+			(CN6XXX_MAX_IQ_DESCRIPTORS * CN6XXX_CFG_IO_QUEUES),
+		.instr_type			= OCTEON_64BYTE_INSTR,
+		.db_min				= CN6XXX_DB_MIN,
+		.db_timeout			= CN6XXX_DB_TIMEOUT,
+	}
+	,
+
+	/** OQ attributes */
+	.oq					= {
+		.max_oqs			= CN6XXX_CFG_IO_QUEUES,
+		.refill_threshold		= CN6XXX_OQ_REFIL_THRESHOLD,
+		.oq_intr_pkt			= CN6XXX_OQ_INTR_PKT,
+		.oq_intr_time			= CN6XXX_OQ_INTR_TIME,
+		.pkts_per_intr			= CN6XXX_OQ_PKTSPER_INTR,
+	}
+	,
+
+	.num_nic_ports				= DEFAULT_NUM_NIC_PORTS_66XX,
+	.num_def_rx_descs			= CN6XXX_MAX_OQ_DESCRIPTORS,
+	.num_def_tx_descs			= CN6XXX_MAX_IQ_DESCRIPTORS,
+	.def_rx_buf_size			= CN6XXX_OQ_BUF_SIZE,
+
+	/* For ethernet interface 0:  Port cfg Attributes */
+	.nic_if_cfg[0] = {
+		/* Max Txqs: Half for each of the two ports :max_iq/2 */
+		.max_txqs			= MAX_TXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_txqs */
+		.num_txqs			= DEF_TXQS_PER_INTF,
+
+		/* Max Rxqs: Half for each of the two ports :max_oq/2  */
+		.max_rxqs			= MAX_RXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_rxqs */
+		.num_rxqs			= DEF_RXQS_PER_INTF,
+
+		/* Num of desc for rx rings */
+		.num_rx_descs			= CN6XXX_MAX_OQ_DESCRIPTORS,
+
+		/* Num of desc for tx rings */
+		.num_tx_descs			= CN6XXX_MAX_IQ_DESCRIPTORS,
+
+		/* SKB size, We need not change buf size even for Jumbo frames.
+		 * Octeon can send jumbo frames in 4 consecutive descriptors,
+		 */
+		.rx_buf_size			= CN6XXX_OQ_BUF_SIZE,
+
+		.base_queue			= BASE_QUEUE_NOT_REQUESTED,
+
+		.gmx_port_id			= 0,
+	},
+
+	.nic_if_cfg[1] = {
+		/* Max Txqs: Half for each of the two ports :max_iq/2 */
+		.max_txqs			= MAX_TXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_txqs */
+		.num_txqs			= DEF_TXQS_PER_INTF,
+
+		/* Max Rxqs: Half for each of the two ports :max_oq/2  */
+		.max_rxqs			= MAX_RXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_rxqs */
+		.num_rxqs			= DEF_RXQS_PER_INTF,
+
+		/* Num of desc for rx rings */
+		.num_rx_descs			= CN6XXX_MAX_OQ_DESCRIPTORS,
+
+		/* Num of desc for tx rings */
+		.num_tx_descs			= CN6XXX_MAX_IQ_DESCRIPTORS,
+
+		/* SKB size, We need not change buf size even for Jumbo frames.
+		 * Octeon can send jumbo frames in 4 consecutive descriptors,
+		 */
+		.rx_buf_size			= CN6XXX_OQ_BUF_SIZE,
+
+		.base_queue			= BASE_QUEUE_NOT_REQUESTED,
+
+		.gmx_port_id			= 1,
+	},
+
+	/** Miscellaneous attributes */
+	.misc					= {
+		/* Host driver link query interval */
+		.oct_link_query_interval	= 100,
+
+		/* Octeon link query interval */
+		.host_link_query_interval	= 500,
+
+		.enable_sli_oq_bp		= 0,
+
+		/* Control queue group */
+		.ctrlq_grp			= 1,
+	}
+	,
+};
+
+/** Default configuration
+ *  for CN68XX OCTEON Model.
+ */
+
+static struct octeon_config default_cn68xx_conf = {
+	.card_type                              = LIO_410NV,
+	.card_name                              = LIO_410NV_NAME,
+
+	/** IQ attributes */
+	.iq					= {
+		.max_iqs			= CN6XXX_CFG_IO_QUEUES,
+		.pending_list_size		=
+			(CN6XXX_MAX_IQ_DESCRIPTORS * CN6XXX_CFG_IO_QUEUES),
+		.instr_type			= OCTEON_64BYTE_INSTR,
+		.db_min				= CN6XXX_DB_MIN,
+		.db_timeout			= CN6XXX_DB_TIMEOUT,
+	}
+	,
+
+	/** OQ attributes */
+	.oq					= {
+		.max_oqs			= CN6XXX_CFG_IO_QUEUES,
+		.refill_threshold		= CN6XXX_OQ_REFIL_THRESHOLD,
+		.oq_intr_pkt			= CN6XXX_OQ_INTR_PKT,
+		.oq_intr_time			= CN6XXX_OQ_INTR_TIME,
+		.pkts_per_intr			= CN6XXX_OQ_PKTSPER_INTR,
+	}
+	,
+
+	.num_nic_ports				= DEFAULT_NUM_NIC_PORTS_68XX,
+	.num_def_rx_descs			= CN6XXX_MAX_OQ_DESCRIPTORS,
+	.num_def_tx_descs			= CN6XXX_MAX_IQ_DESCRIPTORS,
+	.def_rx_buf_size			= CN6XXX_OQ_BUF_SIZE,
+
+	.nic_if_cfg[0] = {
+		/* Max Txqs: Half for each of the two ports :max_iq/2 */
+		.max_txqs			= MAX_TXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_txqs */
+		.num_txqs			= DEF_TXQS_PER_INTF,
+
+		/* Max Rxqs: Half for each of the two ports :max_oq/2  */
+		.max_rxqs			= MAX_RXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_rxqs */
+		.num_rxqs			= DEF_RXQS_PER_INTF,
+
+		/* Num of desc for rx rings */
+		.num_rx_descs			= CN6XXX_MAX_OQ_DESCRIPTORS,
+
+		/* Num of desc for tx rings */
+		.num_tx_descs			= CN6XXX_MAX_IQ_DESCRIPTORS,
+
+		/* SKB size, We need not change buf size even for Jumbo frames.
+		 * Octeon can send jumbo frames in 4 consecutive descriptors,
+		 */
+		.rx_buf_size			= CN6XXX_OQ_BUF_SIZE,
+
+		.base_queue			= BASE_QUEUE_NOT_REQUESTED,
+
+		.gmx_port_id			= 0,
+	},
+
+	.nic_if_cfg[1] = {
+		/* Max Txqs: Half for each of the two ports :max_iq/2 */
+		.max_txqs			= MAX_TXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_txqs */
+		.num_txqs			= DEF_TXQS_PER_INTF,
+
+		/* Max Rxqs: Half for each of the two ports :max_oq/2  */
+		.max_rxqs			= MAX_RXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_rxqs */
+		.num_rxqs			= DEF_RXQS_PER_INTF,
+
+		/* Num of desc for rx rings */
+		.num_rx_descs			= CN6XXX_MAX_OQ_DESCRIPTORS,
+
+		/* Num of desc for tx rings */
+		.num_tx_descs			= CN6XXX_MAX_IQ_DESCRIPTORS,
+
+		/* SKB size, We need not change buf size even for Jumbo frames.
+		 * Octeon can send jumbo frames in 4 consecutive descriptors,
+		 */
+		.rx_buf_size			= CN6XXX_OQ_BUF_SIZE,
+
+		.base_queue			= BASE_QUEUE_NOT_REQUESTED,
+
+		.gmx_port_id			= 1,
+	},
+
+	.nic_if_cfg[2] = {
+		/* Max Txqs: Half for each of the two ports :max_iq/2 */
+		.max_txqs			= MAX_TXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_txqs */
+		.num_txqs			= DEF_TXQS_PER_INTF,
+
+		/* Max Rxqs: Half for each of the two ports :max_oq/2  */
+		.max_rxqs			= MAX_RXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_rxqs */
+		.num_rxqs			= DEF_RXQS_PER_INTF,
+
+		/* Num of desc for rx rings */
+		.num_rx_descs			= CN6XXX_MAX_OQ_DESCRIPTORS,
+
+		/* Num of desc for tx rings */
+		.num_tx_descs			= CN6XXX_MAX_IQ_DESCRIPTORS,
+
+		/* SKB size, We need not change buf size even for Jumbo frames.
+		 * Octeon can send jumbo frames in 4 consecutive descriptors,
+		 */
+		.rx_buf_size			= CN6XXX_OQ_BUF_SIZE,
+
+		.base_queue			= BASE_QUEUE_NOT_REQUESTED,
+
+		.gmx_port_id			= 2,
+	},
+
+	.nic_if_cfg[3] = {
+		/* Max Txqs: Half for each of the two ports :max_iq/2 */
+		.max_txqs			= MAX_TXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_txqs */
+		.num_txqs			= DEF_TXQS_PER_INTF,
+
+		/* Max Rxqs: Half for each of the two ports :max_oq/2  */
+		.max_rxqs			= MAX_RXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_rxqs */
+		.num_rxqs			= DEF_RXQS_PER_INTF,
+
+		/* Num of desc for rx rings */
+		.num_rx_descs			= CN6XXX_MAX_OQ_DESCRIPTORS,
+
+		/* Num of desc for tx rings */
+		.num_tx_descs			= CN6XXX_MAX_IQ_DESCRIPTORS,
+
+		/* SKB size, We need not change buf size even for Jumbo frames.
+		 * Octeon can send jumbo frames in 4 consecutive descriptors,
+		 */
+		.rx_buf_size			= CN6XXX_OQ_BUF_SIZE,
+
+		.base_queue			= BASE_QUEUE_NOT_REQUESTED,
+
+		.gmx_port_id			= 3,
+	},
+
+	/** Miscellaneous attributes */
+	.misc					= {
+		/* Host driver link query interval */
+		.oct_link_query_interval	= 100,
+
+		/* Octeon link query interval */
+		.host_link_query_interval	= 500,
+
+		.enable_sli_oq_bp		= 0,
+
+		/* Control queue group */
+		.ctrlq_grp			= 1,
+	}
+	,
+};
+
+/** Default configuration
+ *  for CN68XX OCTEON Model.
+ */
+static struct octeon_config default_cn68xx_210nv_conf = {
+	.card_type                              = LIO_210NV,
+	.card_name                              = LIO_210NV_NAME,
+
+	/** IQ attributes */
+
+	.iq					= {
+		.max_iqs			= CN6XXX_CFG_IO_QUEUES,
+		.pending_list_size		=
+			(CN6XXX_MAX_IQ_DESCRIPTORS * CN6XXX_CFG_IO_QUEUES),
+		.instr_type			= OCTEON_64BYTE_INSTR,
+		.db_min				= CN6XXX_DB_MIN,
+		.db_timeout			= CN6XXX_DB_TIMEOUT,
+	}
+	,
+
+	/** OQ attributes */
+	.oq					= {
+		.max_oqs			= CN6XXX_CFG_IO_QUEUES,
+		.refill_threshold		= CN6XXX_OQ_REFIL_THRESHOLD,
+		.oq_intr_pkt			= CN6XXX_OQ_INTR_PKT,
+		.oq_intr_time			= CN6XXX_OQ_INTR_TIME,
+		.pkts_per_intr			= CN6XXX_OQ_PKTSPER_INTR,
+	}
+	,
+
+	.num_nic_ports			= DEFAULT_NUM_NIC_PORTS_68XX_210NV,
+	.num_def_rx_descs		= CN6XXX_MAX_OQ_DESCRIPTORS,
+	.num_def_tx_descs		= CN6XXX_MAX_IQ_DESCRIPTORS,
+	.def_rx_buf_size		= CN6XXX_OQ_BUF_SIZE,
+
+	.nic_if_cfg[0] = {
+		/* Max Txqs: Half for each of the two ports :max_iq/2 */
+		.max_txqs			= MAX_TXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_txqs */
+		.num_txqs			= DEF_TXQS_PER_INTF,
+
+		/* Max Rxqs: Half for each of the two ports :max_oq/2  */
+		.max_rxqs			= MAX_RXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_rxqs */
+		.num_rxqs			= DEF_RXQS_PER_INTF,
+
+		/* Num of desc for rx rings */
+		.num_rx_descs			= CN6XXX_MAX_OQ_DESCRIPTORS,
+
+		/* Num of desc for tx rings */
+		.num_tx_descs			= CN6XXX_MAX_IQ_DESCRIPTORS,
+
+		/* SKB size, We need not change buf size even for Jumbo frames.
+		 * Octeon can send jumbo frames in 4 consecutive descriptors,
+		 */
+		.rx_buf_size			= CN6XXX_OQ_BUF_SIZE,
+
+		.base_queue			= BASE_QUEUE_NOT_REQUESTED,
+
+		.gmx_port_id			= 0,
+	},
+
+	.nic_if_cfg[1] = {
+		/* Max Txqs: Half for each of the two ports :max_iq/2 */
+		.max_txqs			= MAX_TXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_txqs */
+		.num_txqs			= DEF_TXQS_PER_INTF,
+
+		/* Max Rxqs: Half for each of the two ports :max_oq/2  */
+		.max_rxqs			= MAX_RXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_rxqs */
+		.num_rxqs			= DEF_RXQS_PER_INTF,
+
+		/* Num of desc for rx rings */
+		.num_rx_descs			= CN6XXX_MAX_OQ_DESCRIPTORS,
+
+		/* Num of desc for tx rings */
+		.num_tx_descs			= CN6XXX_MAX_IQ_DESCRIPTORS,
+
+		/* SKB size, We need not change buf size even for Jumbo frames.
+		 * Octeon can send jumbo frames in 4 consecutive descriptors,
+		 */
+		.rx_buf_size			= CN6XXX_OQ_BUF_SIZE,
+
+		.base_queue			= BASE_QUEUE_NOT_REQUESTED,
+
+		.gmx_port_id			= 1,
+	},
+
+	/** Miscellaneous attributes */
+	.misc					= {
+		/* Host driver link query interval */
+		.oct_link_query_interval	= 100,
+
+		/* Octeon link query interval */
+		.host_link_query_interval	= 500,
+
+		.enable_sli_oq_bp		= 0,
+
+		/* Control queue group */
+		.ctrlq_grp			= 1,
+	}
+	,
+};
+
+static struct octeon_config default_cn23xx_conf = {
+	.card_type                              = LIO_23XX,
+	.card_name                              = LIO_23XX_NAME,
+	/** IQ attributes */
+	.iq = {
+		.max_iqs		= CN23XX_CFG_IO_QUEUES,
+		.pending_list_size	= (CN23XX_DEFAULT_IQ_DESCRIPTORS *
+					   CN23XX_CFG_IO_QUEUES),
+		.instr_type		= OCTEON_64BYTE_INSTR,
+		.db_min			= CN23XX_DB_MIN,
+		.db_timeout		= CN23XX_DB_TIMEOUT,
+		.iq_intr_pkt		= CN23XX_DEF_IQ_INTR_THRESHOLD,
+	},
+
+	/** OQ attributes */
+	.oq = {
+		.max_oqs		= CN23XX_CFG_IO_QUEUES,
+		.pkts_per_intr	= CN23XX_OQ_PKTSPER_INTR,
+		.refill_threshold	= CN23XX_OQ_REFIL_THRESHOLD,
+		.oq_intr_pkt	= CN23XX_OQ_INTR_PKT,
+		.oq_intr_time	= CN23XX_OQ_INTR_TIME,
+	},
+
+	.num_nic_ports				= DEFAULT_NUM_NIC_PORTS_23XX,
+	.num_def_rx_descs			= CN23XX_DEFAULT_OQ_DESCRIPTORS,
+	.num_def_tx_descs			= CN23XX_DEFAULT_IQ_DESCRIPTORS,
+	.def_rx_buf_size			= CN23XX_OQ_BUF_SIZE,
+
+	/* For ethernet interface 0:  Port cfg Attributes */
+	.nic_if_cfg[0] = {
+		/* Max Txqs: Half for each of the two ports :max_iq/2 */
+		.max_txqs			= MAX_TXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_txqs */
+		.num_txqs			= DEF_TXQS_PER_INTF,
+
+		/* Max Rxqs: Half for each of the two ports :max_oq/2  */
+		.max_rxqs			= MAX_RXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_rxqs */
+		.num_rxqs			= DEF_RXQS_PER_INTF,
+
+		/* Num of desc for rx rings */
+		.num_rx_descs			= CN23XX_DEFAULT_OQ_DESCRIPTORS,
+
+		/* Num of desc for tx rings */
+		.num_tx_descs			= CN23XX_DEFAULT_IQ_DESCRIPTORS,
+
+		/* SKB size, We need not change buf size even for Jumbo frames.
+		 * Octeon can send jumbo frames in 4 consecutive descriptors,
+		 */
+		.rx_buf_size			= CN23XX_OQ_BUF_SIZE,
+
+		.base_queue			= BASE_QUEUE_NOT_REQUESTED,
+
+		.gmx_port_id			= 0,
+	},
+
+	.nic_if_cfg[1] = {
+		/* Max Txqs: Half for each of the two ports :max_iq/2 */
+		.max_txqs			= MAX_TXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_txqs */
+		.num_txqs			= DEF_TXQS_PER_INTF,
+
+		/* Max Rxqs: Half for each of the two ports :max_oq/2  */
+		.max_rxqs			= MAX_RXQS_PER_INTF,
+
+		/* Actual configured value. Range could be: 1...max_rxqs */
+		.num_rxqs			= DEF_RXQS_PER_INTF,
+
+		/* Num of desc for rx rings */
+		.num_rx_descs			= CN23XX_DEFAULT_OQ_DESCRIPTORS,
+
+		/* Num of desc for tx rings */
+		.num_tx_descs			= CN23XX_DEFAULT_IQ_DESCRIPTORS,
+
+		/* SKB size, We need not change buf size even for Jumbo frames.
+		 * Octeon can send jumbo frames in 4 consecutive descriptors,
+		 */
+		.rx_buf_size			= CN23XX_OQ_BUF_SIZE,
+
+		.base_queue			= BASE_QUEUE_NOT_REQUESTED,
+
+		.gmx_port_id			= 1,
+	},
+
+	.misc					= {
+		/* Host driver link query interval */
+		.oct_link_query_interval	= 100,
+
+		/* Octeon link query interval */
+		.host_link_query_interval	= 500,
+
+		.enable_sli_oq_bp		= 0,
+
+		/* Control queue group */
+		.ctrlq_grp			= 1,
+	}
+};
+
+static struct octeon_config_ptr {
+	u32 conf_type;
+} oct_conf_info[MAX_OCTEON_DEVICES] = {
+	{
+		OCTEON_CONFIG_TYPE_DEFAULT,
+	}, {
+		OCTEON_CONFIG_TYPE_DEFAULT,
+	}, {
+		OCTEON_CONFIG_TYPE_DEFAULT,
+	}, {
+		OCTEON_CONFIG_TYPE_DEFAULT,
+	},
+};
+
+static char oct_dev_state_str[OCT_DEV_STATES + 1][32] = {
+	"BEGIN", "PCI-ENABLE-DONE", "PCI-MAP-DONE", "DISPATCH-INIT-DONE",
+	"IQ-INIT-DONE", "SCBUFF-POOL-INIT-DONE", "RESPLIST-INIT-DONE",
+	"DROQ-INIT-DONE", "MBOX-SETUP-DONE", "MSIX-ALLOC-VECTOR-DONE",
+	"INTR-SET-DONE", "IO-QUEUES-INIT-DONE", "CONSOLE-INIT-DONE",
+	"HOST-READY", "CORE-READY", "RUNNING", "IN-RESET",
+	"INVALID"
+};
+
+static char oct_dev_app_str[CVM_DRV_APP_COUNT + 1][32] = {
+	"BASE", "NIC", "UNKNOWN"};
+
+static struct octeon_device *octeon_device[MAX_OCTEON_DEVICES];
+static atomic_t adapter_refcounts[MAX_OCTEON_DEVICES];
+static atomic_t adapter_fw_states[MAX_OCTEON_DEVICES];
+
+static u32 octeon_device_count;
+/* locks device array (i.e. octeon_device[]) */
+static DEFINE_SPINLOCK(octeon_devices_lock);
+
+static struct octeon_core_setup core_setup[MAX_OCTEON_DEVICES];
+
+static void oct_set_config_info(int oct_id, int conf_type)
+{
+	if (conf_type < 0 || conf_type > (NUM_OCTEON_CONFS - 1))
+		conf_type = OCTEON_CONFIG_TYPE_DEFAULT;
+	oct_conf_info[oct_id].conf_type = conf_type;
+}
+
+void octeon_init_device_list(int conf_type)
+{
+	int i;
+
+	memset(octeon_device, 0, (sizeof(void *) * MAX_OCTEON_DEVICES));
+	for (i = 0; i <  MAX_OCTEON_DEVICES; i++)
+		oct_set_config_info(i, conf_type);
+}
+
+static void *__retrieve_octeon_config_info(struct octeon_device *oct,
+					   u16 card_type)
+{
+	u32 oct_id = oct->octeon_id;
+	void *ret = NULL;
+
+	switch (oct_conf_info[oct_id].conf_type) {
+	case OCTEON_CONFIG_TYPE_DEFAULT:
+		if (oct->chip_id == OCTEON_CN66XX) {
+			ret = &default_cn66xx_conf;
+		} else if ((oct->chip_id == OCTEON_CN68XX) &&
+			   (card_type == LIO_210NV)) {
+			ret = &default_cn68xx_210nv_conf;
+		} else if ((oct->chip_id == OCTEON_CN68XX) &&
+			   (card_type == LIO_410NV)) {
+			ret = &default_cn68xx_conf;
+		} else if (oct->chip_id == OCTEON_CN23XX_PF_VID) {
+			ret = &default_cn23xx_conf;
+		} else if (oct->chip_id == OCTEON_CN23XX_VF_VID) {
+			ret = &default_cn23xx_conf;
+		}
+		break;
+	default:
+		break;
+	}
+	return ret;
+}
+
+static int __verify_octeon_config_info(struct octeon_device *oct, void *conf)
+{
+	switch (oct->chip_id) {
+	case OCTEON_CN66XX:
+	case OCTEON_CN68XX:
+		return lio_validate_cn6xxx_config_info(oct, conf);
+	case OCTEON_CN23XX_PF_VID:
+	case OCTEON_CN23XX_VF_VID:
+		return 0;
+	default:
+		break;
+	}
+
+	return 1;
+}
+
+void *oct_get_config_info(struct octeon_device *oct, u16 card_type)
+{
+	void *conf = NULL;
+
+	conf = __retrieve_octeon_config_info(oct, card_type);
+	if (!conf)
+		return NULL;
+
+	if (__verify_octeon_config_info(oct, conf)) {
+		dev_err(&oct->pci_dev->dev, "Configuration verification failed\n");
+		return NULL;
+	}
+
+	return conf;
+}
+
+char *lio_get_state_string(atomic_t *state_ptr)
+{
+	s32 istate = (s32)atomic_read(state_ptr);
+
+	if (istate > OCT_DEV_STATES || istate < 0)
+		return oct_dev_state_str[OCT_DEV_STATE_INVALID];
+	return oct_dev_state_str[istate];
+}
+
+static char *get_oct_app_string(u32 app_mode)
+{
+	if (app_mode <= CVM_DRV_APP_END)
+		return oct_dev_app_str[app_mode - CVM_DRV_APP_START];
+	return oct_dev_app_str[CVM_DRV_INVALID_APP - CVM_DRV_APP_START];
+}
+
+void octeon_free_device_mem(struct octeon_device *oct)
+{
+	int i;
+
+	for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) {
+		if (oct->io_qmask.oq & BIT_ULL(i))
+			vfree(oct->droq[i]);
+	}
+
+	for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) {
+		if (oct->io_qmask.iq & BIT_ULL(i))
+			vfree(oct->instr_queue[i]);
+	}
+
+	i = oct->octeon_id;
+	vfree(oct);
+
+	octeon_device[i] = NULL;
+	octeon_device_count--;
+}
+
+static struct octeon_device *octeon_allocate_device_mem(u32 pci_id,
+							u32 priv_size)
+{
+	struct octeon_device *oct;
+	u8 *buf = NULL;
+	u32 octdevsize = 0, configsize = 0, size;
+
+	switch (pci_id) {
+	case OCTEON_CN68XX:
+	case OCTEON_CN66XX:
+		configsize = sizeof(struct octeon_cn6xxx);
+		break;
+
+	case OCTEON_CN23XX_PF_VID:
+		configsize = sizeof(struct octeon_cn23xx_pf);
+		break;
+	case OCTEON_CN23XX_VF_VID:
+		configsize = sizeof(struct octeon_cn23xx_vf);
+		break;
+	default:
+		pr_err("%s: Unknown PCI Device: 0x%x\n",
+		       __func__,
+		       pci_id);
+		return NULL;
+	}
+
+	if (configsize & 0x7)
+		configsize += (8 - (configsize & 0x7));
+
+	octdevsize = sizeof(struct octeon_device);
+	if (octdevsize & 0x7)
+		octdevsize += (8 - (octdevsize & 0x7));
+
+	if (priv_size & 0x7)
+		priv_size += (8 - (priv_size & 0x7));
+
+	size = octdevsize + priv_size + configsize +
+		(sizeof(struct octeon_dispatch) * DISPATCH_LIST_SIZE);
+
+	buf = vzalloc(size);
+	if (!buf)
+		return NULL;
+
+	oct = (struct octeon_device *)buf;
+	oct->priv = (void *)(buf + octdevsize);
+	oct->chip = (void *)(buf + octdevsize + priv_size);
+	oct->dispatch.dlist = (struct octeon_dispatch *)
+		(buf + octdevsize + priv_size + configsize);
+
+	return oct;
+}
+
+struct octeon_device *octeon_allocate_device(u32 pci_id,
+					     u32 priv_size)
+{
+	u32 oct_idx = 0;
+	struct octeon_device *oct = NULL;
+
+	spin_lock(&octeon_devices_lock);
+
+	for (oct_idx = 0; oct_idx < MAX_OCTEON_DEVICES; oct_idx++)
+		if (!octeon_device[oct_idx])
+			break;
+
+	if (oct_idx < MAX_OCTEON_DEVICES) {
+		oct = octeon_allocate_device_mem(pci_id, priv_size);
+		if (oct) {
+			octeon_device_count++;
+			octeon_device[oct_idx] = oct;
+		}
+	}
+
+	spin_unlock(&octeon_devices_lock);
+	if (!oct)
+		return NULL;
+
+	spin_lock_init(&oct->pci_win_lock);
+	spin_lock_init(&oct->mem_access_lock);
+
+	oct->octeon_id = oct_idx;
+	snprintf(oct->device_name, sizeof(oct->device_name),
+		 "LiquidIO%d", (oct->octeon_id));
+
+	return oct;
+}
+
+/** Register a device's bus location at initialization time.
+ *  @param octeon_dev - pointer to the octeon device structure.
+ *  @param bus        - PCIe bus #
+ *  @param dev        - PCIe device #
+ *  @param func       - PCIe function #
+ *  @param is_pf      - TRUE for PF, FALSE for VF
+ *  @return reference count of device's adapter
+ */
+int octeon_register_device(struct octeon_device *oct,
+			   int bus, int dev, int func, int is_pf)
+{
+	int idx, refcount;
+
+	oct->loc.bus = bus;
+	oct->loc.dev = dev;
+	oct->loc.func = func;
+
+	oct->adapter_refcount = &adapter_refcounts[oct->octeon_id];
+	atomic_set(oct->adapter_refcount, 0);
+
+	/* Like the reference count, the f/w state is shared 'per-adapter' */
+	oct->adapter_fw_state = &adapter_fw_states[oct->octeon_id];
+	atomic_set(oct->adapter_fw_state, FW_NEEDS_TO_BE_LOADED);
+
+	spin_lock(&octeon_devices_lock);
+	for (idx = (int)oct->octeon_id - 1; idx >= 0; idx--) {
+		if (!octeon_device[idx]) {
+			dev_err(&oct->pci_dev->dev,
+				"%s: Internal driver error, missing dev",
+				__func__);
+			spin_unlock(&octeon_devices_lock);
+			atomic_inc(oct->adapter_refcount);
+			return 1; /* here, refcount is guaranteed to be 1 */
+		}
+		/* If another device is at same bus/dev, use its refcounter
+		 * (and f/w state variable).
+		 */
+		if ((octeon_device[idx]->loc.bus == bus) &&
+		    (octeon_device[idx]->loc.dev == dev)) {
+			oct->adapter_refcount =
+				octeon_device[idx]->adapter_refcount;
+			oct->adapter_fw_state =
+				octeon_device[idx]->adapter_fw_state;
+			break;
+		}
+	}
+	spin_unlock(&octeon_devices_lock);
+
+	atomic_inc(oct->adapter_refcount);
+	refcount = atomic_read(oct->adapter_refcount);
+
+	dev_dbg(&oct->pci_dev->dev, "%s: %02x:%02x:%d refcount %u", __func__,
+		oct->loc.bus, oct->loc.dev, oct->loc.func, refcount);
+
+	return refcount;
+}
+
+/** Deregister a device at de-initialization time.
+ *  @param octeon_dev - pointer to the octeon device structure.
+ *  @return reference count of device's adapter
+ */
+int octeon_deregister_device(struct octeon_device *oct)
+{
+	int refcount;
+
+	atomic_dec(oct->adapter_refcount);
+	refcount = atomic_read(oct->adapter_refcount);
+
+	dev_dbg(&oct->pci_dev->dev, "%s: %04d:%02d:%d refcount %u", __func__,
+		oct->loc.bus, oct->loc.dev, oct->loc.func, refcount);
+
+	return refcount;
+}
+
+int
+octeon_allocate_ioq_vector(struct octeon_device *oct, u32 num_ioqs)
+{
+	struct octeon_ioq_vector *ioq_vector;
+	int cpu_num;
+	int size;
+	int i;
+
+	size = sizeof(struct octeon_ioq_vector) * num_ioqs;
+
+	oct->ioq_vector = vzalloc(size);
+	if (!oct->ioq_vector)
+		return -1;
+	for (i = 0; i < num_ioqs; i++) {
+		ioq_vector		= &oct->ioq_vector[i];
+		ioq_vector->oct_dev	= oct;
+		ioq_vector->iq_index	= i;
+		ioq_vector->droq_index	= i;
+		ioq_vector->mbox	= oct->mbox[i];
+
+		cpu_num = i % num_online_cpus();
+		cpumask_set_cpu(cpu_num, &ioq_vector->affinity_mask);
+
+		if (oct->chip_id == OCTEON_CN23XX_PF_VID)
+			ioq_vector->ioq_num	= i + oct->sriov_info.pf_srn;
+		else
+			ioq_vector->ioq_num	= i;
+	}
+
+	return 0;
+}
+
+void
+octeon_free_ioq_vector(struct octeon_device *oct)
+{
+	vfree(oct->ioq_vector);
+}
+
+/* this function is only for setting up the first queue */
+int octeon_setup_instr_queues(struct octeon_device *oct)
+{
+	u32 num_descs = 0;
+	u32 iq_no = 0;
+	union oct_txpciq txpciq;
+	int numa_node = dev_to_node(&oct->pci_dev->dev);
+
+	if (OCTEON_CN6XXX(oct))
+		num_descs =
+			CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn6xxx));
+	else if (OCTEON_CN23XX_PF(oct))
+		num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_pf));
+	else if (OCTEON_CN23XX_VF(oct))
+		num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_vf));
+
+	oct->num_iqs = 0;
+
+	oct->instr_queue[0] = vzalloc_node(sizeof(*oct->instr_queue[0]),
+				numa_node);
+	if (!oct->instr_queue[0])
+		oct->instr_queue[0] =
+			vzalloc(sizeof(struct octeon_instr_queue));
+	if (!oct->instr_queue[0])
+		return 1;
+	memset(oct->instr_queue[0], 0, sizeof(struct octeon_instr_queue));
+	oct->instr_queue[0]->q_index = 0;
+	oct->instr_queue[0]->app_ctx = (void *)(size_t)0;
+	oct->instr_queue[0]->ifidx = 0;
+	txpciq.u64 = 0;
+	txpciq.s.q_no = iq_no;
+	txpciq.s.pkind = oct->pfvf_hsword.pkind;
+	txpciq.s.use_qpg = 0;
+	txpciq.s.qpg = 0;
+	if (octeon_init_instr_queue(oct, txpciq, num_descs)) {
+		/* prevent memory leak */
+		vfree(oct->instr_queue[0]);
+		oct->instr_queue[0] = NULL;
+		return 1;
+	}
+
+	oct->num_iqs++;
+	return 0;
+}
+
+int octeon_setup_output_queues(struct octeon_device *oct)
+{
+	u32 num_descs = 0;
+	u32 desc_size = 0;
+	u32 oq_no = 0;
+	int numa_node = dev_to_node(&oct->pci_dev->dev);
+
+	if (OCTEON_CN6XXX(oct)) {
+		num_descs =
+			CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn6xxx));
+		desc_size =
+			CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn6xxx));
+	} else if (OCTEON_CN23XX_PF(oct)) {
+		num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_pf));
+		desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_pf));
+	} else if (OCTEON_CN23XX_VF(oct)) {
+		num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_vf));
+		desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_vf));
+	}
+	oct->num_oqs = 0;
+	oct->droq[0] = vzalloc_node(sizeof(*oct->droq[0]), numa_node);
+	if (!oct->droq[0])
+		oct->droq[0] = vzalloc(sizeof(*oct->droq[0]));
+	if (!oct->droq[0])
+		return 1;
+
+	if (octeon_init_droq(oct, oq_no, num_descs, desc_size, NULL)) {
+		vfree(oct->droq[oq_no]);
+		oct->droq[oq_no] = NULL;
+		return 1;
+	}
+	oct->num_oqs++;
+
+	return 0;
+}
+
+int octeon_set_io_queues_off(struct octeon_device *oct)
+{
+	int loop = BUSY_READING_REG_VF_LOOP_COUNT;
+
+	if (OCTEON_CN6XXX(oct)) {
+		octeon_write_csr(oct, CN6XXX_SLI_PKT_INSTR_ENB, 0);
+		octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, 0);
+	} else if (oct->chip_id == OCTEON_CN23XX_VF_VID) {
+		u32 q_no;
+
+		/* IOQs will already be in reset.
+		 * If RST bit is set, wait for quiet bit to be set.
+		 * Once quiet bit is set, clear the RST bit.
+		 */
+		for (q_no = 0; q_no < oct->sriov_info.rings_per_vf; q_no++) {
+			u64 reg_val = octeon_read_csr64(
+				oct, CN23XX_VF_SLI_IQ_PKT_CONTROL64(q_no));
+
+			while ((reg_val & CN23XX_PKT_INPUT_CTL_RST) &&
+			       !(reg_val &  CN23XX_PKT_INPUT_CTL_QUIET) &&
+			       loop) {
+				reg_val = octeon_read_csr64(
+					oct, CN23XX_SLI_IQ_PKT_CONTROL64(q_no));
+				loop--;
+			}
+			if (!loop) {
+				dev_err(&oct->pci_dev->dev,
+					"clearing the reset reg failed or setting the quiet reg failed for qno: %u\n",
+					q_no);
+				return -1;
+			}
+
+			reg_val = reg_val & ~CN23XX_PKT_INPUT_CTL_RST;
+			octeon_write_csr64(oct,
+					   CN23XX_SLI_IQ_PKT_CONTROL64(q_no),
+					   reg_val);
+
+			reg_val = octeon_read_csr64(
+					oct, CN23XX_SLI_IQ_PKT_CONTROL64(q_no));
+			if (reg_val & CN23XX_PKT_INPUT_CTL_RST) {
+				dev_err(&oct->pci_dev->dev,
+					"unable to reset qno %u\n", q_no);
+				return -1;
+			}
+		}
+	}
+	return 0;
+}
+
+void octeon_set_droq_pkt_op(struct octeon_device *oct,
+			    u32 q_no,
+			    u32 enable)
+{
+	u32 reg_val = 0;
+
+	/* Disable the i/p and o/p queues for this Octeon. */
+	if (OCTEON_CN6XXX(oct)) {
+		reg_val = octeon_read_csr(oct, CN6XXX_SLI_PKT_OUT_ENB);
+
+		if (enable)
+			reg_val = reg_val | (1 << q_no);
+		else
+			reg_val = reg_val & (~(1 << q_no));
+
+		octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, reg_val);
+	}
+}
+
+int octeon_init_dispatch_list(struct octeon_device *oct)
+{
+	u32 i;
+
+	oct->dispatch.count = 0;
+
+	for (i = 0; i < DISPATCH_LIST_SIZE; i++) {
+		oct->dispatch.dlist[i].opcode = 0;
+		INIT_LIST_HEAD(&oct->dispatch.dlist[i].list);
+	}
+
+	for (i = 0; i <= REQTYPE_LAST; i++)
+		octeon_register_reqtype_free_fn(oct, i, NULL);
+
+	spin_lock_init(&oct->dispatch.lock);
+
+	return 0;
+}
+
+void octeon_delete_dispatch_list(struct octeon_device *oct)
+{
+	u32 i;
+	struct list_head freelist, *temp, *tmp2;
+
+	INIT_LIST_HEAD(&freelist);
+
+	spin_lock_bh(&oct->dispatch.lock);
+
+	for (i = 0; i < DISPATCH_LIST_SIZE; i++) {
+		struct list_head *dispatch;
+
+		dispatch = &oct->dispatch.dlist[i].list;
+		while (dispatch->next != dispatch) {
+			temp = dispatch->next;
+			list_move_tail(temp, &freelist);
+		}
+
+		oct->dispatch.dlist[i].opcode = 0;
+	}
+
+	oct->dispatch.count = 0;
+
+	spin_unlock_bh(&oct->dispatch.lock);
+
+	list_for_each_safe(temp, tmp2, &freelist) {
+		list_del(temp);
+		kfree(temp);
+	}
+}
+
+octeon_dispatch_fn_t
+octeon_get_dispatch(struct octeon_device *octeon_dev, u16 opcode,
+		    u16 subcode)
+{
+	u32 idx;
+	struct list_head *dispatch;
+	octeon_dispatch_fn_t fn = NULL;
+	u16 combined_opcode = OPCODE_SUBCODE(opcode, subcode);
+
+	idx = combined_opcode & OCTEON_OPCODE_MASK;
+
+	spin_lock_bh(&octeon_dev->dispatch.lock);
+
+	if (octeon_dev->dispatch.count == 0) {
+		spin_unlock_bh(&octeon_dev->dispatch.lock);
+		return NULL;
+	}
+
+	if (!(octeon_dev->dispatch.dlist[idx].opcode)) {
+		spin_unlock_bh(&octeon_dev->dispatch.lock);
+		return NULL;
+	}
+
+	if (octeon_dev->dispatch.dlist[idx].opcode == combined_opcode) {
+		fn = octeon_dev->dispatch.dlist[idx].dispatch_fn;
+	} else {
+		list_for_each(dispatch,
+			      &octeon_dev->dispatch.dlist[idx].list) {
+			if (((struct octeon_dispatch *)dispatch)->opcode ==
+			    combined_opcode) {
+				fn = ((struct octeon_dispatch *)
+				      dispatch)->dispatch_fn;
+				break;
+			}
+		}
+	}
+
+	spin_unlock_bh(&octeon_dev->dispatch.lock);
+	return fn;
+}
+
+/* octeon_register_dispatch_fn
+ * Parameters:
+ *   octeon_id - id of the octeon device.
+ *   opcode    - opcode for which driver should call the registered function
+ *   subcode   - subcode for which driver should call the registered function
+ *   fn        - The function to call when a packet with "opcode" arrives in
+ *		  octeon output queues.
+ *   fn_arg    - The argument to be passed when calling function "fn".
+ * Description:
+ *   Registers a function and its argument to be called when a packet
+ *   arrives in Octeon output queues with "opcode".
+ * Returns:
+ *   Success: 0
+ *   Failure: 1
+ * Locks:
+ *   No locks are held.
+ */
+int
+octeon_register_dispatch_fn(struct octeon_device *oct,
+			    u16 opcode,
+			    u16 subcode,
+			    octeon_dispatch_fn_t fn, void *fn_arg)
+{
+	u32 idx;
+	octeon_dispatch_fn_t pfn;
+	u16 combined_opcode = OPCODE_SUBCODE(opcode, subcode);
+
+	idx = combined_opcode & OCTEON_OPCODE_MASK;
+
+	spin_lock_bh(&oct->dispatch.lock);
+	/* Add dispatch function to first level of lookup table */
+	if (oct->dispatch.dlist[idx].opcode == 0) {
+		oct->dispatch.dlist[idx].opcode = combined_opcode;
+		oct->dispatch.dlist[idx].dispatch_fn = fn;
+		oct->dispatch.dlist[idx].arg = fn_arg;
+		oct->dispatch.count++;
+		spin_unlock_bh(&oct->dispatch.lock);
+		return 0;
+	}
+
+	spin_unlock_bh(&oct->dispatch.lock);
+
+	/* Check if there was a function already registered for this
+	 * opcode/subcode.
+	 */
+	pfn = octeon_get_dispatch(oct, opcode, subcode);
+	if (!pfn) {
+		struct octeon_dispatch *dispatch;
+
+		dev_dbg(&oct->pci_dev->dev,
+			"Adding opcode to dispatch list linked list\n");
+		dispatch = kmalloc(sizeof(*dispatch), GFP_KERNEL);
+		if (!dispatch)
+			return 1;
+
+		dispatch->opcode = combined_opcode;
+		dispatch->dispatch_fn = fn;
+		dispatch->arg = fn_arg;
+
+		/* Add dispatch function to linked list of fn ptrs
+		 * at the hashed index.
+		 */
+		spin_lock_bh(&oct->dispatch.lock);
+		list_add(&dispatch->list, &oct->dispatch.dlist[idx].list);
+		oct->dispatch.count++;
+		spin_unlock_bh(&oct->dispatch.lock);
+
+	} else {
+		if (pfn == fn &&
+		    octeon_get_dispatch_arg(oct, opcode, subcode) == fn_arg)
+			return 0;
+
+		dev_err(&oct->pci_dev->dev,
+			"Found previously registered dispatch fn for opcode/subcode: %x/%x\n",
+			opcode, subcode);
+		return 1;
+	}
+
+	return 0;
+}
+
+int octeon_core_drv_init(struct octeon_recv_info *recv_info, void *buf)
+{
+	u32 i;
+	char app_name[16];
+	struct octeon_device *oct = (struct octeon_device *)buf;
+	struct octeon_recv_pkt *recv_pkt = recv_info->recv_pkt;
+	struct octeon_core_setup *cs = NULL;
+	u32 num_nic_ports = 0;
+
+	if (OCTEON_CN6XXX(oct))
+		num_nic_ports =
+			CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn6xxx));
+	else if (OCTEON_CN23XX_PF(oct))
+		num_nic_ports =
+			CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn23xx_pf));
+
+	if (atomic_read(&oct->status) >= OCT_DEV_RUNNING) {
+		dev_err(&oct->pci_dev->dev, "Received CORE OK when device state is 0x%x\n",
+			atomic_read(&oct->status));
+		goto core_drv_init_err;
+	}
+
+	strncpy(app_name,
+		get_oct_app_string(
+		(u32)recv_pkt->rh.r_core_drv_init.app_mode),
+		sizeof(app_name) - 1);
+	oct->app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode;
+	if (recv_pkt->rh.r_core_drv_init.app_mode == CVM_DRV_NIC_APP) {
+		oct->fw_info.max_nic_ports =
+			(u32)recv_pkt->rh.r_core_drv_init.max_nic_ports;
+		oct->fw_info.num_gmx_ports =
+			(u32)recv_pkt->rh.r_core_drv_init.num_gmx_ports;
+	}
+
+	if (oct->fw_info.max_nic_ports < num_nic_ports) {
+		dev_err(&oct->pci_dev->dev,
+			"Config has more ports than firmware allows (%d > %d).\n",
+			num_nic_ports, oct->fw_info.max_nic_ports);
+		goto core_drv_init_err;
+	}
+	oct->fw_info.app_cap_flags = recv_pkt->rh.r_core_drv_init.app_cap_flags;
+	oct->fw_info.app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode;
+	oct->pfvf_hsword.app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode;
+
+	oct->pfvf_hsword.pkind = recv_pkt->rh.r_core_drv_init.pkind;
+
+	for (i = 0; i < oct->num_iqs; i++)
+		oct->instr_queue[i]->txpciq.s.pkind = oct->pfvf_hsword.pkind;
+
+	atomic_set(&oct->status, OCT_DEV_CORE_OK);
+
+	cs = &core_setup[oct->octeon_id];
+
+	if (recv_pkt->buffer_size[0] != (sizeof(*cs) + OCT_DROQ_INFO_SIZE)) {
+		dev_dbg(&oct->pci_dev->dev, "Core setup bytes expected %u found %d\n",
+			(u32)sizeof(*cs),
+			recv_pkt->buffer_size[0]);
+	}
+
+	memcpy(cs, get_rbd(
+	       recv_pkt->buffer_ptr[0]) + OCT_DROQ_INFO_SIZE, sizeof(*cs));
+
+	strncpy(oct->boardinfo.name, cs->boardname, OCT_BOARD_NAME);
+	strncpy(oct->boardinfo.serial_number, cs->board_serial_number,
+		OCT_SERIAL_LEN);
+
+	octeon_swap_8B_data((u64 *)cs, (sizeof(*cs) >> 3));
+
+	oct->boardinfo.major = cs->board_rev_major;
+	oct->boardinfo.minor = cs->board_rev_minor;
+
+	dev_info(&oct->pci_dev->dev,
+		 "Running %s (%llu Hz)\n",
+		 app_name, CVM_CAST64(cs->corefreq));
+
+core_drv_init_err:
+	for (i = 0; i < recv_pkt->buffer_count; i++)
+		recv_buffer_free(recv_pkt->buffer_ptr[i]);
+	octeon_free_recv_info(recv_info);
+	return 0;
+}
+
+int octeon_get_tx_qsize(struct octeon_device *oct, u32 q_no)
+
+{
+	if (oct && (q_no < MAX_OCTEON_INSTR_QUEUES(oct)) &&
+	    (oct->io_qmask.iq & BIT_ULL(q_no)))
+		return oct->instr_queue[q_no]->max_count;
+
+	return -1;
+}
+
+int octeon_get_rx_qsize(struct octeon_device *oct, u32 q_no)
+{
+	if (oct && (q_no < MAX_OCTEON_OUTPUT_QUEUES(oct)) &&
+	    (oct->io_qmask.oq & BIT_ULL(q_no)))
+		return oct->droq[q_no]->max_count;
+	return -1;
+}
+
+/* Retruns the host firmware handshake OCTEON specific configuration */
+struct octeon_config *octeon_get_conf(struct octeon_device *oct)
+{
+	struct octeon_config *default_oct_conf = NULL;
+
+	/* check the OCTEON Device model & return the corresponding octeon
+	 * configuration
+	 */
+
+	if (OCTEON_CN6XXX(oct)) {
+		default_oct_conf =
+			(struct octeon_config *)(CHIP_CONF(oct, cn6xxx));
+	} else if (OCTEON_CN23XX_PF(oct)) {
+		default_oct_conf = (struct octeon_config *)
+			(CHIP_CONF(oct, cn23xx_pf));
+	} else if (OCTEON_CN23XX_VF(oct)) {
+		default_oct_conf = (struct octeon_config *)
+			(CHIP_CONF(oct, cn23xx_vf));
+	}
+	return default_oct_conf;
+}
+
+/* scratch register address is same in all the OCT-II and CN70XX models */
+#define CNXX_SLI_SCRATCH1   0x3C0
+
+/* Get the octeon device pointer.
+ *  @param octeon_id  - The id for which the octeon device pointer is required.
+ *  @return Success: Octeon device pointer.
+ *  @return Failure: NULL.
+ */
+struct octeon_device *lio_get_device(u32 octeon_id)
+{
+	if (octeon_id >= MAX_OCTEON_DEVICES)
+		return NULL;
+	else
+		return octeon_device[octeon_id];
+}
+
+u64 lio_pci_readq(struct octeon_device *oct, u64 addr)
+{
+	u64 val64;
+	unsigned long flags;
+	u32 addrhi;
+
+	spin_lock_irqsave(&oct->pci_win_lock, flags);
+
+	/* The windowed read happens when the LSB of the addr is written.
+	 * So write MSB first
+	 */
+	addrhi = (addr >> 32);
+	if ((oct->chip_id == OCTEON_CN66XX) ||
+	    (oct->chip_id == OCTEON_CN68XX) ||
+	    (oct->chip_id == OCTEON_CN23XX_PF_VID))
+		addrhi |= 0x00060000;
+	writel(addrhi, oct->reg_list.pci_win_rd_addr_hi);
+
+	/* Read back to preserve ordering of writes */
+	readl(oct->reg_list.pci_win_rd_addr_hi);
+
+	writel(addr & 0xffffffff, oct->reg_list.pci_win_rd_addr_lo);
+	readl(oct->reg_list.pci_win_rd_addr_lo);
+
+	val64 = readq(oct->reg_list.pci_win_rd_data);
+
+	spin_unlock_irqrestore(&oct->pci_win_lock, flags);
+
+	return val64;
+}
+
+void lio_pci_writeq(struct octeon_device *oct,
+		    u64 val,
+		    u64 addr)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&oct->pci_win_lock, flags);
+
+	writeq(addr, oct->reg_list.pci_win_wr_addr);
+
+	/* The write happens when the LSB is written. So write MSB first. */
+	writel(val >> 32, oct->reg_list.pci_win_wr_data_hi);
+	/* Read the MSB to ensure ordering of writes. */
+	readl(oct->reg_list.pci_win_wr_data_hi);
+
+	writel(val & 0xffffffff, oct->reg_list.pci_win_wr_data_lo);
+
+	spin_unlock_irqrestore(&oct->pci_win_lock, flags);
+}
+
+int octeon_mem_access_ok(struct octeon_device *oct)
+{
+	u64 access_okay = 0;
+	u64 lmc0_reset_ctl;
+
+	/* Check to make sure a DDR interface is enabled */
+	if (OCTEON_CN23XX_PF(oct)) {
+		lmc0_reset_ctl = lio_pci_readq(oct, CN23XX_LMC0_RESET_CTL);
+		access_okay =
+			(lmc0_reset_ctl & CN23XX_LMC0_RESET_CTL_DDR3RST_MASK);
+	} else {
+		lmc0_reset_ctl = lio_pci_readq(oct, CN6XXX_LMC0_RESET_CTL);
+		access_okay =
+			(lmc0_reset_ctl & CN6XXX_LMC0_RESET_CTL_DDR3RST_MASK);
+	}
+
+	return access_okay ? 0 : 1;
+}
+
+int octeon_wait_for_ddr_init(struct octeon_device *oct, u32 *timeout)
+{
+	int ret = 1;
+	u32 ms;
+
+	if (!timeout)
+		return ret;
+
+	for (ms = 0; (ret != 0) && ((*timeout == 0) || (ms <= *timeout));
+	     ms += HZ / 10) {
+		ret = octeon_mem_access_ok(oct);
+
+		/* wait 100 ms */
+		if (ret)
+			schedule_timeout_uninterruptible(HZ / 10);
+	}
+
+	return ret;
+}
+
+/* Get the octeon id assigned to the octeon device passed as argument.
+ *  This function is exported to other modules.
+ *  @param dev - octeon device pointer passed as a void *.
+ *  @return octeon device id
+ */
+int lio_get_device_id(void *dev)
+{
+	struct octeon_device *octeon_dev = (struct octeon_device *)dev;
+	u32 i;
+
+	for (i = 0; i < MAX_OCTEON_DEVICES; i++)
+		if (octeon_device[i] == octeon_dev)
+			return octeon_dev->octeon_id;
+	return -1;
+}
+
+void lio_enable_irq(struct octeon_droq *droq, struct octeon_instr_queue *iq)
+{
+	u64 instr_cnt;
+	u32 pkts_pend;
+	struct octeon_device *oct = NULL;
+
+	/* the whole thing needs to be atomic, ideally */
+	if (droq) {
+		pkts_pend = (u32)atomic_read(&droq->pkts_pending);
+		writel(droq->pkt_count - pkts_pend, droq->pkts_sent_reg);
+		droq->pkt_count = pkts_pend;
+		oct = droq->oct_dev;
+	}
+	if (iq) {
+		spin_lock_bh(&iq->lock);
+		writel(iq->pkts_processed, iq->inst_cnt_reg);
+		iq->pkt_in_done -= iq->pkts_processed;
+		iq->pkts_processed = 0;
+		/* this write needs to be flushed before we release the lock */
+		spin_unlock_bh(&iq->lock);
+		oct = iq->oct_dev;
+	}
+	/*write resend. Writing RESEND in SLI_PKTX_CNTS should be enough
+	 *to trigger tx interrupts as well, if they are pending.
+	 */
+	if (oct && (OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct))) {
+		if (droq)
+			writeq(CN23XX_INTR_RESEND, droq->pkts_sent_reg);
+		/*we race with firmrware here. read and write the IN_DONE_CNTS*/
+		else if (iq) {
+			instr_cnt =  readq(iq->inst_cnt_reg);
+			writeq(((instr_cnt & 0xFFFFFFFF00000000ULL) |
+				CN23XX_INTR_RESEND),
+			       iq->inst_cnt_reg);
+		}
+	}
+}