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, 839 insertions, 0 deletions

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c b/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
new file mode 100644
index 000000000..ddf6e913c
--- /dev/null
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
@@ -0,0 +1,839 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (C) 2020 Marvell. */
+
+#include <linux/firmware.h>
+#include "otx2_cpt_hw_types.h"
+#include "otx2_cpt_common.h"
+#include "otx2_cpt_devlink.h"
+#include "otx2_cptpf_ucode.h"
+#include "otx2_cptpf.h"
+#include "cn10k_cpt.h"
+#include "rvu_reg.h"
+
+#define OTX2_CPT_DRV_NAME    "rvu_cptpf"
+#define OTX2_CPT_DRV_STRING  "Marvell RVU CPT Physical Function Driver"
+
+static void cptpf_enable_vfpf_mbox_intr(struct otx2_cptpf_dev *cptpf,
+					int num_vfs)
+{
+	int ena_bits;
+
+	/* Clear any pending interrupts */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFPF_MBOX_INTX(0), ~0x0ULL);
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFPF_MBOX_INTX(1), ~0x0ULL);
+
+	/* Enable VF interrupts for VFs from 0 to 63 */
+	ena_bits = ((num_vfs - 1) % 64);
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFPF_MBOX_INT_ENA_W1SX(0),
+			 GENMASK_ULL(ena_bits, 0));
+
+	if (num_vfs > 64) {
+		/* Enable VF interrupts for VFs from 64 to 127 */
+		ena_bits = num_vfs - 64 - 1;
+		otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+				RVU_PF_VFPF_MBOX_INT_ENA_W1SX(1),
+				GENMASK_ULL(ena_bits, 0));
+	}
+}
+
+static void cptpf_disable_vfpf_mbox_intr(struct otx2_cptpf_dev *cptpf,
+					 int num_vfs)
+{
+	int vector;
+
+	/* Disable VF-PF interrupts */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFPF_MBOX_INT_ENA_W1CX(0), ~0ULL);
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFPF_MBOX_INT_ENA_W1CX(1), ~0ULL);
+	/* Clear any pending interrupts */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFPF_MBOX_INTX(0), ~0ULL);
+
+	vector = pci_irq_vector(cptpf->pdev, RVU_PF_INT_VEC_VFPF_MBOX0);
+	free_irq(vector, cptpf);
+
+	if (num_vfs > 64) {
+		otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+				 RVU_PF_VFPF_MBOX_INTX(1), ~0ULL);
+		vector = pci_irq_vector(cptpf->pdev, RVU_PF_INT_VEC_VFPF_MBOX1);
+		free_irq(vector, cptpf);
+	}
+}
+
+static void cptpf_enable_vf_flr_me_intrs(struct otx2_cptpf_dev *cptpf,
+					 int num_vfs)
+{
+	/* Clear FLR interrupt if any */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0, RVU_PF_VFFLR_INTX(0),
+			 INTR_MASK(num_vfs));
+
+	/* Enable VF FLR interrupts */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFFLR_INT_ENA_W1SX(0), INTR_MASK(num_vfs));
+	/* Clear ME interrupt if any */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0, RVU_PF_VFME_INTX(0),
+			 INTR_MASK(num_vfs));
+	/* Enable VF ME interrupts */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFME_INT_ENA_W1SX(0), INTR_MASK(num_vfs));
+
+	if (num_vfs <= 64)
+		return;
+
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0, RVU_PF_VFFLR_INTX(1),
+			 INTR_MASK(num_vfs - 64));
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFFLR_INT_ENA_W1SX(1), INTR_MASK(num_vfs - 64));
+
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0, RVU_PF_VFME_INTX(1),
+			 INTR_MASK(num_vfs - 64));
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFME_INT_ENA_W1SX(1), INTR_MASK(num_vfs - 64));
+}
+
+static void cptpf_disable_vf_flr_me_intrs(struct otx2_cptpf_dev *cptpf,
+				       int num_vfs)
+{
+	int vector;
+
+	/* Disable VF FLR interrupts */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFFLR_INT_ENA_W1CX(0), INTR_MASK(num_vfs));
+	vector = pci_irq_vector(cptpf->pdev, RVU_PF_INT_VEC_VFFLR0);
+	free_irq(vector, cptpf);
+
+	/* Disable VF ME interrupts */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFME_INT_ENA_W1CX(0), INTR_MASK(num_vfs));
+	vector = pci_irq_vector(cptpf->pdev, RVU_PF_INT_VEC_VFME0);
+	free_irq(vector, cptpf);
+
+	if (num_vfs <= 64)
+		return;
+
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFFLR_INT_ENA_W1CX(1), INTR_MASK(num_vfs - 64));
+	vector = pci_irq_vector(cptpf->pdev, RVU_PF_INT_VEC_VFFLR1);
+	free_irq(vector, cptpf);
+
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			 RVU_PF_VFME_INT_ENA_W1CX(1), INTR_MASK(num_vfs - 64));
+	vector = pci_irq_vector(cptpf->pdev, RVU_PF_INT_VEC_VFME1);
+	free_irq(vector, cptpf);
+}
+
+static void cptpf_flr_wq_handler(struct work_struct *work)
+{
+	struct cptpf_flr_work *flr_work;
+	struct otx2_cptpf_dev *pf;
+	struct mbox_msghdr *req;
+	struct otx2_mbox *mbox;
+	int vf, reg = 0;
+
+	flr_work = container_of(work, struct cptpf_flr_work, work);
+	pf = flr_work->pf;
+	mbox = &pf->afpf_mbox;
+
+	vf = flr_work - pf->flr_work;
+
+	mutex_lock(&pf->lock);
+	req = otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
+				      sizeof(struct msg_rsp));
+	if (!req) {
+		mutex_unlock(&pf->lock);
+		return;
+	}
+
+	req->sig = OTX2_MBOX_REQ_SIG;
+	req->id = MBOX_MSG_VF_FLR;
+	req->pcifunc &= RVU_PFVF_FUNC_MASK;
+	req->pcifunc |= (vf + 1) & RVU_PFVF_FUNC_MASK;
+
+	otx2_cpt_send_mbox_msg(mbox, pf->pdev);
+	if (!otx2_cpt_sync_mbox_msg(&pf->afpf_mbox)) {
+
+		if (vf >= 64) {
+			reg = 1;
+			vf = vf - 64;
+		}
+		/* Clear transaction pending register */
+		otx2_cpt_write64(pf->reg_base, BLKADDR_RVUM, 0,
+				 RVU_PF_VFTRPENDX(reg), BIT_ULL(vf));
+		otx2_cpt_write64(pf->reg_base, BLKADDR_RVUM, 0,
+				 RVU_PF_VFFLR_INT_ENA_W1SX(reg), BIT_ULL(vf));
+	}
+	mutex_unlock(&pf->lock);
+}
+
+static irqreturn_t cptpf_vf_flr_intr(int __always_unused irq, void *arg)
+{
+	int reg, dev, vf, start_vf, num_reg = 1;
+	struct otx2_cptpf_dev *cptpf = arg;
+	u64 intr;
+
+	if (cptpf->max_vfs > 64)
+		num_reg = 2;
+
+	for (reg = 0; reg < num_reg; reg++) {
+		intr = otx2_cpt_read64(cptpf->reg_base, BLKADDR_RVUM, 0,
+				       RVU_PF_VFFLR_INTX(reg));
+		if (!intr)
+			continue;
+		start_vf = 64 * reg;
+		for (vf = 0; vf < 64; vf++) {
+			if (!(intr & BIT_ULL(vf)))
+				continue;
+			dev = vf + start_vf;
+			queue_work(cptpf->flr_wq, &cptpf->flr_work[dev].work);
+			/* Clear interrupt */
+			otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+					 RVU_PF_VFFLR_INTX(reg), BIT_ULL(vf));
+			/* Disable the interrupt */
+			otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+					 RVU_PF_VFFLR_INT_ENA_W1CX(reg),
+					 BIT_ULL(vf));
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t cptpf_vf_me_intr(int __always_unused irq, void *arg)
+{
+	struct otx2_cptpf_dev *cptpf = arg;
+	int reg, vf, num_reg = 1;
+	u64 intr;
+
+	if (cptpf->max_vfs > 64)
+		num_reg = 2;
+
+	for (reg = 0; reg < num_reg; reg++) {
+		intr = otx2_cpt_read64(cptpf->reg_base, BLKADDR_RVUM, 0,
+				       RVU_PF_VFME_INTX(reg));
+		if (!intr)
+			continue;
+		for (vf = 0; vf < 64; vf++) {
+			if (!(intr & BIT_ULL(vf)))
+				continue;
+			otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+					 RVU_PF_VFTRPENDX(reg), BIT_ULL(vf));
+			/* Clear interrupt */
+			otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0,
+					 RVU_PF_VFME_INTX(reg), BIT_ULL(vf));
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+static void cptpf_unregister_vfpf_intr(struct otx2_cptpf_dev *cptpf,
+				       int num_vfs)
+{
+	cptpf_disable_vfpf_mbox_intr(cptpf, num_vfs);
+	cptpf_disable_vf_flr_me_intrs(cptpf, num_vfs);
+}
+
+static int cptpf_register_vfpf_intr(struct otx2_cptpf_dev *cptpf, int num_vfs)
+{
+	struct pci_dev *pdev = cptpf->pdev;
+	struct device *dev = &pdev->dev;
+	int ret, vector;
+
+	vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFPF_MBOX0);
+	/* Register VF-PF mailbox interrupt handler */
+	ret = request_irq(vector, otx2_cptpf_vfpf_mbox_intr, 0, "CPTVFPF Mbox0",
+			  cptpf);
+	if (ret) {
+		dev_err(dev,
+			"IRQ registration failed for PFVF mbox0 irq\n");
+		return ret;
+	}
+	vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFFLR0);
+	/* Register VF FLR interrupt handler */
+	ret = request_irq(vector, cptpf_vf_flr_intr, 0, "CPTPF FLR0", cptpf);
+	if (ret) {
+		dev_err(dev,
+			"IRQ registration failed for VFFLR0 irq\n");
+		goto free_mbox0_irq;
+	}
+	vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFME0);
+	/* Register VF ME interrupt handler */
+	ret = request_irq(vector, cptpf_vf_me_intr, 0, "CPTPF ME0", cptpf);
+	if (ret) {
+		dev_err(dev,
+			"IRQ registration failed for PFVF mbox0 irq\n");
+		goto free_flr0_irq;
+	}
+
+	if (num_vfs > 64) {
+		vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFPF_MBOX1);
+		ret = request_irq(vector, otx2_cptpf_vfpf_mbox_intr, 0,
+				  "CPTVFPF Mbox1", cptpf);
+		if (ret) {
+			dev_err(dev,
+				"IRQ registration failed for PFVF mbox1 irq\n");
+			goto free_me0_irq;
+		}
+		vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFFLR1);
+		/* Register VF FLR interrupt handler */
+		ret = request_irq(vector, cptpf_vf_flr_intr, 0, "CPTPF FLR1",
+				  cptpf);
+		if (ret) {
+			dev_err(dev,
+				"IRQ registration failed for VFFLR1 irq\n");
+			goto free_mbox1_irq;
+		}
+		vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFME1);
+		/* Register VF FLR interrupt handler */
+		ret = request_irq(vector, cptpf_vf_me_intr, 0, "CPTPF ME1",
+				  cptpf);
+		if (ret) {
+			dev_err(dev,
+				"IRQ registration failed for VFFLR1 irq\n");
+			goto free_flr1_irq;
+		}
+	}
+	cptpf_enable_vfpf_mbox_intr(cptpf, num_vfs);
+	cptpf_enable_vf_flr_me_intrs(cptpf, num_vfs);
+
+	return 0;
+
+free_flr1_irq:
+	vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFFLR1);
+	free_irq(vector, cptpf);
+free_mbox1_irq:
+	vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFPF_MBOX1);
+	free_irq(vector, cptpf);
+free_me0_irq:
+	vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFME0);
+	free_irq(vector, cptpf);
+free_flr0_irq:
+	vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFFLR0);
+	free_irq(vector, cptpf);
+free_mbox0_irq:
+	vector = pci_irq_vector(pdev, RVU_PF_INT_VEC_VFPF_MBOX0);
+	free_irq(vector, cptpf);
+	return ret;
+}
+
+static void cptpf_flr_wq_destroy(struct otx2_cptpf_dev *pf)
+{
+	if (!pf->flr_wq)
+		return;
+	destroy_workqueue(pf->flr_wq);
+	pf->flr_wq = NULL;
+	kfree(pf->flr_work);
+}
+
+static int cptpf_flr_wq_init(struct otx2_cptpf_dev *cptpf, int num_vfs)
+{
+	int vf;
+
+	cptpf->flr_wq = alloc_ordered_workqueue("cptpf_flr_wq", 0);
+	if (!cptpf->flr_wq)
+		return -ENOMEM;
+
+	cptpf->flr_work = kcalloc(num_vfs, sizeof(struct cptpf_flr_work),
+				  GFP_KERNEL);
+	if (!cptpf->flr_work)
+		goto destroy_wq;
+
+	for (vf = 0; vf < num_vfs; vf++) {
+		cptpf->flr_work[vf].pf = cptpf;
+		INIT_WORK(&cptpf->flr_work[vf].work, cptpf_flr_wq_handler);
+	}
+	return 0;
+
+destroy_wq:
+	destroy_workqueue(cptpf->flr_wq);
+	return -ENOMEM;
+}
+
+static int cptpf_vfpf_mbox_init(struct otx2_cptpf_dev *cptpf, int num_vfs)
+{
+	struct device *dev = &cptpf->pdev->dev;
+	u64 vfpf_mbox_base;
+	int err, i;
+
+	cptpf->vfpf_mbox_wq = alloc_workqueue("cpt_vfpf_mailbox",
+					      WQ_UNBOUND | WQ_HIGHPRI |
+					      WQ_MEM_RECLAIM, 1);
+	if (!cptpf->vfpf_mbox_wq)
+		return -ENOMEM;
+
+	/* Map VF-PF mailbox memory */
+	if (test_bit(CN10K_MBOX, &cptpf->cap_flag))
+		vfpf_mbox_base = readq(cptpf->reg_base + RVU_PF_VF_MBOX_ADDR);
+	else
+		vfpf_mbox_base = readq(cptpf->reg_base + RVU_PF_VF_BAR4_ADDR);
+
+	if (!vfpf_mbox_base) {
+		dev_err(dev, "VF-PF mailbox address not configured\n");
+		err = -ENOMEM;
+		goto free_wqe;
+	}
+	cptpf->vfpf_mbox_base = devm_ioremap_wc(dev, vfpf_mbox_base,
+						MBOX_SIZE * cptpf->max_vfs);
+	if (!cptpf->vfpf_mbox_base) {
+		dev_err(dev, "Mapping of VF-PF mailbox address failed\n");
+		err = -ENOMEM;
+		goto free_wqe;
+	}
+	err = otx2_mbox_init(&cptpf->vfpf_mbox, cptpf->vfpf_mbox_base,
+			     cptpf->pdev, cptpf->reg_base, MBOX_DIR_PFVF,
+			     num_vfs);
+	if (err)
+		goto free_wqe;
+
+	for (i = 0; i < num_vfs; i++) {
+		cptpf->vf[i].vf_id = i;
+		cptpf->vf[i].cptpf = cptpf;
+		cptpf->vf[i].intr_idx = i % 64;
+		INIT_WORK(&cptpf->vf[i].vfpf_mbox_work,
+			  otx2_cptpf_vfpf_mbox_handler);
+	}
+	return 0;
+
+free_wqe:
+	destroy_workqueue(cptpf->vfpf_mbox_wq);
+	return err;
+}
+
+static void cptpf_vfpf_mbox_destroy(struct otx2_cptpf_dev *cptpf)
+{
+	destroy_workqueue(cptpf->vfpf_mbox_wq);
+	otx2_mbox_destroy(&cptpf->vfpf_mbox);
+}
+
+static void cptpf_disable_afpf_mbox_intr(struct otx2_cptpf_dev *cptpf)
+{
+	/* Disable AF-PF interrupt */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0, RVU_PF_INT_ENA_W1C,
+			 0x1ULL);
+	/* Clear interrupt if any */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0, RVU_PF_INT, 0x1ULL);
+}
+
+static int cptpf_register_afpf_mbox_intr(struct otx2_cptpf_dev *cptpf)
+{
+	struct pci_dev *pdev = cptpf->pdev;
+	struct device *dev = &pdev->dev;
+	int ret, irq;
+
+	irq = pci_irq_vector(pdev, RVU_PF_INT_VEC_AFPF_MBOX);
+	/* Register AF-PF mailbox interrupt handler */
+	ret = devm_request_irq(dev, irq, otx2_cptpf_afpf_mbox_intr, 0,
+			       "CPTAFPF Mbox", cptpf);
+	if (ret) {
+		dev_err(dev,
+			"IRQ registration failed for PFAF mbox irq\n");
+		return ret;
+	}
+	/* Clear interrupt if any, to avoid spurious interrupts */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0, RVU_PF_INT, 0x1ULL);
+	/* Enable AF-PF interrupt */
+	otx2_cpt_write64(cptpf->reg_base, BLKADDR_RVUM, 0, RVU_PF_INT_ENA_W1S,
+			 0x1ULL);
+
+	ret = otx2_cpt_send_ready_msg(&cptpf->afpf_mbox, cptpf->pdev);
+	if (ret) {
+		dev_warn(dev,
+			 "AF not responding to mailbox, deferring probe\n");
+		cptpf_disable_afpf_mbox_intr(cptpf);
+		return -EPROBE_DEFER;
+	}
+	return 0;
+}
+
+static int cptpf_afpf_mbox_init(struct otx2_cptpf_dev *cptpf)
+{
+	struct pci_dev *pdev = cptpf->pdev;
+	resource_size_t offset;
+	int err;
+
+	cptpf->afpf_mbox_wq = alloc_workqueue("cpt_afpf_mailbox",
+					      WQ_UNBOUND | WQ_HIGHPRI |
+					      WQ_MEM_RECLAIM, 1);
+	if (!cptpf->afpf_mbox_wq)
+		return -ENOMEM;
+
+	offset = pci_resource_start(pdev, PCI_MBOX_BAR_NUM);
+	/* Map AF-PF mailbox memory */
+	cptpf->afpf_mbox_base = devm_ioremap_wc(&pdev->dev, offset, MBOX_SIZE);
+	if (!cptpf->afpf_mbox_base) {
+		dev_err(&pdev->dev, "Unable to map BAR4\n");
+		err = -ENOMEM;
+		goto error;
+	}
+
+	err = otx2_mbox_init(&cptpf->afpf_mbox, cptpf->afpf_mbox_base,
+			     pdev, cptpf->reg_base, MBOX_DIR_PFAF, 1);
+	if (err)
+		goto error;
+
+	INIT_WORK(&cptpf->afpf_mbox_work, otx2_cptpf_afpf_mbox_handler);
+	mutex_init(&cptpf->lock);
+	return 0;
+
+error:
+	destroy_workqueue(cptpf->afpf_mbox_wq);
+	return err;
+}
+
+static void cptpf_afpf_mbox_destroy(struct otx2_cptpf_dev *cptpf)
+{
+	destroy_workqueue(cptpf->afpf_mbox_wq);
+	otx2_mbox_destroy(&cptpf->afpf_mbox);
+}
+
+static ssize_t kvf_limits_show(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	struct otx2_cptpf_dev *cptpf = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%d\n", cptpf->kvf_limits);
+}
+
+static ssize_t kvf_limits_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct otx2_cptpf_dev *cptpf = dev_get_drvdata(dev);
+	int lfs_num;
+	int ret;
+
+	ret = kstrtoint(buf, 0, &lfs_num);
+	if (ret)
+		return ret;
+	if (lfs_num < 1 || lfs_num > num_online_cpus()) {
+		dev_err(dev, "lfs count %d must be in range [1 - %d]\n",
+			lfs_num, num_online_cpus());
+		return -EINVAL;
+	}
+	cptpf->kvf_limits = lfs_num;
+
+	return count;
+}
+
+static DEVICE_ATTR_RW(kvf_limits);
+static struct attribute *cptpf_attrs[] = {
+	&dev_attr_kvf_limits.attr,
+	NULL
+};
+
+static const struct attribute_group cptpf_sysfs_group = {
+	.attrs = cptpf_attrs,
+};
+
+static int cpt_is_pf_usable(struct otx2_cptpf_dev *cptpf)
+{
+	u64 rev;
+
+	rev = otx2_cpt_read64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			      RVU_PF_BLOCK_ADDRX_DISC(BLKADDR_RVUM));
+	rev = (rev >> 12) & 0xFF;
+	/*
+	 * Check if AF has setup revision for RVUM block, otherwise
+	 * driver probe should be deferred until AF driver comes up
+	 */
+	if (!rev) {
+		dev_warn(&cptpf->pdev->dev,
+			 "AF is not initialized, deferring probe\n");
+		return -EPROBE_DEFER;
+	}
+	return 0;
+}
+
+static int cptx_device_reset(struct otx2_cptpf_dev *cptpf, int blkaddr)
+{
+	int timeout = 10, ret;
+	u64 reg = 0;
+
+	ret = otx2_cpt_write_af_reg(&cptpf->afpf_mbox, cptpf->pdev,
+				    CPT_AF_BLK_RST, 0x1, blkaddr);
+	if (ret)
+		return ret;
+
+	do {
+		ret = otx2_cpt_read_af_reg(&cptpf->afpf_mbox, cptpf->pdev,
+					   CPT_AF_BLK_RST, &reg, blkaddr);
+		if (ret)
+			return ret;
+
+		if (!((reg >> 63) & 0x1))
+			break;
+
+		usleep_range(10000, 20000);
+		if (timeout-- < 0)
+			return -EBUSY;
+	} while (1);
+
+	return ret;
+}
+
+static int cptpf_device_reset(struct otx2_cptpf_dev *cptpf)
+{
+	int ret = 0;
+
+	if (cptpf->has_cpt1) {
+		ret = cptx_device_reset(cptpf, BLKADDR_CPT1);
+		if (ret)
+			return ret;
+	}
+	return cptx_device_reset(cptpf, BLKADDR_CPT0);
+}
+
+static void cptpf_check_block_implemented(struct otx2_cptpf_dev *cptpf)
+{
+	u64 cfg;
+
+	cfg = otx2_cpt_read64(cptpf->reg_base, BLKADDR_RVUM, 0,
+			      RVU_PF_BLOCK_ADDRX_DISC(BLKADDR_CPT1));
+	if (cfg & BIT_ULL(11))
+		cptpf->has_cpt1 = true;
+}
+
+static int cptpf_device_init(struct otx2_cptpf_dev *cptpf)
+{
+	union otx2_cptx_af_constants1 af_cnsts1 = {0};
+	int ret = 0;
+
+	/* check if 'implemented' bit is set for block BLKADDR_CPT1 */
+	cptpf_check_block_implemented(cptpf);
+	/* Reset the CPT PF device */
+	ret = cptpf_device_reset(cptpf);
+	if (ret)
+		return ret;
+
+	/* Get number of SE, IE and AE engines */
+	ret = otx2_cpt_read_af_reg(&cptpf->afpf_mbox, cptpf->pdev,
+				   CPT_AF_CONSTANTS1, &af_cnsts1.u,
+				   BLKADDR_CPT0);
+	if (ret)
+		return ret;
+
+	cptpf->eng_grps.avail.max_se_cnt = af_cnsts1.s.se;
+	cptpf->eng_grps.avail.max_ie_cnt = af_cnsts1.s.ie;
+	cptpf->eng_grps.avail.max_ae_cnt = af_cnsts1.s.ae;
+
+	/* Disable all cores */
+	ret = otx2_cpt_disable_all_cores(cptpf);
+
+	return ret;
+}
+
+static int cptpf_sriov_disable(struct pci_dev *pdev)
+{
+	struct otx2_cptpf_dev *cptpf = pci_get_drvdata(pdev);
+	int num_vfs = pci_num_vf(pdev);
+
+	if (!num_vfs)
+		return 0;
+
+	pci_disable_sriov(pdev);
+	cptpf_unregister_vfpf_intr(cptpf, num_vfs);
+	cptpf_flr_wq_destroy(cptpf);
+	cptpf_vfpf_mbox_destroy(cptpf);
+	module_put(THIS_MODULE);
+	cptpf->enabled_vfs = 0;
+
+	return 0;
+}
+
+static int cptpf_sriov_enable(struct pci_dev *pdev, int num_vfs)
+{
+	struct otx2_cptpf_dev *cptpf = pci_get_drvdata(pdev);
+	int ret;
+
+	/* Initialize VF<=>PF mailbox */
+	ret = cptpf_vfpf_mbox_init(cptpf, num_vfs);
+	if (ret)
+		return ret;
+
+	ret = cptpf_flr_wq_init(cptpf, num_vfs);
+	if (ret)
+		goto destroy_mbox;
+	/* Register VF<=>PF mailbox interrupt */
+	ret = cptpf_register_vfpf_intr(cptpf, num_vfs);
+	if (ret)
+		goto destroy_flr;
+
+	/* Get CPT HW capabilities using LOAD_FVC operation. */
+	ret = otx2_cpt_discover_eng_capabilities(cptpf);
+	if (ret)
+		goto disable_intr;
+
+	ret = otx2_cpt_create_eng_grps(cptpf, &cptpf->eng_grps);
+	if (ret)
+		goto disable_intr;
+
+	cptpf->enabled_vfs = num_vfs;
+	ret = pci_enable_sriov(pdev, num_vfs);
+	if (ret)
+		goto disable_intr;
+
+	dev_notice(&cptpf->pdev->dev, "VFs enabled: %d\n", num_vfs);
+
+	try_module_get(THIS_MODULE);
+	return num_vfs;
+
+disable_intr:
+	cptpf_unregister_vfpf_intr(cptpf, num_vfs);
+	cptpf->enabled_vfs = 0;
+destroy_flr:
+	cptpf_flr_wq_destroy(cptpf);
+destroy_mbox:
+	cptpf_vfpf_mbox_destroy(cptpf);
+	return ret;
+}
+
+static int otx2_cptpf_sriov_configure(struct pci_dev *pdev, int num_vfs)
+{
+	if (num_vfs > 0) {
+		return cptpf_sriov_enable(pdev, num_vfs);
+	} else {
+		return cptpf_sriov_disable(pdev);
+	}
+}
+
+static int otx2_cptpf_probe(struct pci_dev *pdev,
+			    const struct pci_device_id *ent)
+{
+	struct device *dev = &pdev->dev;
+	struct otx2_cptpf_dev *cptpf;
+	int err;
+
+	cptpf = devm_kzalloc(dev, sizeof(*cptpf), GFP_KERNEL);
+	if (!cptpf)
+		return -ENOMEM;
+
+	err = pcim_enable_device(pdev);
+	if (err) {
+		dev_err(dev, "Failed to enable PCI device\n");
+		goto clear_drvdata;
+	}
+
+	err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
+	if (err) {
+		dev_err(dev, "Unable to get usable DMA configuration\n");
+		goto clear_drvdata;
+	}
+	/* Map PF's configuration registers */
+	err = pcim_iomap_regions_request_all(pdev, 1 << PCI_PF_REG_BAR_NUM,
+					     OTX2_CPT_DRV_NAME);
+	if (err) {
+		dev_err(dev, "Couldn't get PCI resources 0x%x\n", err);
+		goto clear_drvdata;
+	}
+	pci_set_master(pdev);
+	pci_set_drvdata(pdev, cptpf);
+	cptpf->pdev = pdev;
+
+	cptpf->reg_base = pcim_iomap_table(pdev)[PCI_PF_REG_BAR_NUM];
+
+	/* Check if AF driver is up, otherwise defer probe */
+	err = cpt_is_pf_usable(cptpf);
+	if (err)
+		goto clear_drvdata;
+
+	err = pci_alloc_irq_vectors(pdev, RVU_PF_INT_VEC_CNT,
+				    RVU_PF_INT_VEC_CNT, PCI_IRQ_MSIX);
+	if (err < 0) {
+		dev_err(dev, "Request for %d msix vectors failed\n",
+			RVU_PF_INT_VEC_CNT);
+		goto clear_drvdata;
+	}
+	otx2_cpt_set_hw_caps(pdev, &cptpf->cap_flag);
+	/* Initialize AF-PF mailbox */
+	err = cptpf_afpf_mbox_init(cptpf);
+	if (err)
+		goto clear_drvdata;
+	/* Register mailbox interrupt */
+	err = cptpf_register_afpf_mbox_intr(cptpf);
+	if (err)
+		goto destroy_afpf_mbox;
+
+	cptpf->max_vfs = pci_sriov_get_totalvfs(pdev);
+
+	err = cn10k_cptpf_lmtst_init(cptpf);
+	if (err)
+		goto unregister_intr;
+
+	/* Initialize CPT PF device */
+	err = cptpf_device_init(cptpf);
+	if (err)
+		goto unregister_intr;
+
+	/* Initialize engine groups */
+	err = otx2_cpt_init_eng_grps(pdev, &cptpf->eng_grps);
+	if (err)
+		goto unregister_intr;
+
+	err = sysfs_create_group(&dev->kobj, &cptpf_sysfs_group);
+	if (err)
+		goto cleanup_eng_grps;
+
+	err = otx2_cpt_register_dl(cptpf);
+	if (err)
+		goto sysfs_grp_del;
+
+	return 0;
+
+sysfs_grp_del:
+	sysfs_remove_group(&dev->kobj, &cptpf_sysfs_group);
+cleanup_eng_grps:
+	otx2_cpt_cleanup_eng_grps(pdev, &cptpf->eng_grps);
+unregister_intr:
+	cptpf_disable_afpf_mbox_intr(cptpf);
+destroy_afpf_mbox:
+	cptpf_afpf_mbox_destroy(cptpf);
+clear_drvdata:
+	pci_set_drvdata(pdev, NULL);
+	return err;
+}
+
+static void otx2_cptpf_remove(struct pci_dev *pdev)
+{
+	struct otx2_cptpf_dev *cptpf = pci_get_drvdata(pdev);
+
+	if (!cptpf)
+		return;
+
+	cptpf_sriov_disable(pdev);
+	otx2_cpt_unregister_dl(cptpf);
+	/* Delete sysfs entry created for kernel VF limits */
+	sysfs_remove_group(&pdev->dev.kobj, &cptpf_sysfs_group);
+	/* Cleanup engine groups */
+	otx2_cpt_cleanup_eng_grps(pdev, &cptpf->eng_grps);
+	/* Disable AF-PF mailbox interrupt */
+	cptpf_disable_afpf_mbox_intr(cptpf);
+	/* Destroy AF-PF mbox */
+	cptpf_afpf_mbox_destroy(cptpf);
+	pci_set_drvdata(pdev, NULL);
+}
+
+/* Supported devices */
+static const struct pci_device_id otx2_cpt_id_table[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, OTX2_CPT_PCI_PF_DEVICE_ID) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, CN10K_CPT_PCI_PF_DEVICE_ID) },
+	{ 0, }  /* end of table */
+};
+
+static struct pci_driver otx2_cpt_pci_driver = {
+	.name = OTX2_CPT_DRV_NAME,
+	.id_table = otx2_cpt_id_table,
+	.probe = otx2_cptpf_probe,
+	.remove = otx2_cptpf_remove,
+	.sriov_configure = otx2_cptpf_sriov_configure
+};
+
+module_pci_driver(otx2_cpt_pci_driver);
+
+MODULE_IMPORT_NS(CRYPTO_DEV_OCTEONTX2_CPT);
+
+MODULE_AUTHOR("Marvell");
+MODULE_DESCRIPTION(OTX2_CPT_DRV_STRING);
+MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(pci, otx2_cpt_id_table);