[PATCH 1/3] drivers: crypto: Add Support for Octeon-tx CPT Engine
From: gcherianv
Date: Fri Nov 18 2016 - 10:01:58 EST
From: George Cherian <george.cherian@xxxxxxxxxx>
Enable the Physical Function diver for the Cavium Crypto Engine (CPT)
found in Octeon-tx series of SoC's. CPT is the Cryptographic Acceleration
Unit. CPT includes microcoded GigaCypher symmetric engines (SEs) and
asymmetric engines (AEs).
Signed-off-by: George Cherian <george.cherian@xxxxxxxxxx>
---
drivers/crypto/cavium/cpt/Kconfig | 22 +
drivers/crypto/cavium/cpt/Makefile | 2 +
drivers/crypto/cavium/cpt/cpt.h | 90 +++
drivers/crypto/cavium/cpt/cpt_common.h | 377 +++++++++++++
drivers/crypto/cavium/cpt/cpt_hw_types.h | 940 +++++++++++++++++++++++++++++++
drivers/crypto/cavium/cpt/cpt_main.c | 891 +++++++++++++++++++++++++++++
drivers/crypto/cavium/cpt/cpt_pf_mbox.c | 174 ++++++
7 files changed, 2496 insertions(+)
create mode 100644 drivers/crypto/cavium/cpt/Kconfig
create mode 100644 drivers/crypto/cavium/cpt/Makefile
create mode 100644 drivers/crypto/cavium/cpt/cpt.h
create mode 100644 drivers/crypto/cavium/cpt/cpt_common.h
create mode 100644 drivers/crypto/cavium/cpt/cpt_hw_types.h
create mode 100644 drivers/crypto/cavium/cpt/cpt_main.c
create mode 100644 drivers/crypto/cavium/cpt/cpt_pf_mbox.c
diff --git a/drivers/crypto/cavium/cpt/Kconfig b/drivers/crypto/cavium/cpt/Kconfig
new file mode 100644
index 0000000..8fe3f44
--- /dev/null
+++ b/drivers/crypto/cavium/cpt/Kconfig
@@ -0,0 +1,22 @@
+#
+# Cavium crypto device configuration
+#
+
+config CRYPTO_DEV_CPT
+ tristate
+ select HW_RANDOM_OCTEON
+ select CRYPTO_AES
+ select CRYPTO_DES
+ select CRYPTO_BLKCIPHER
+ select FW_LOADER
+
+config OCTEONTX_CPT_PF
+ tristate "Octeon-tx CPT Physical function driver"
+ depends on ARCH_THUNDER
+ select CRYPTO_DEV_CPT
+ help
+ Support for Cavium CPT block found in octeon-tx series of
+ processors.
+
+ To compile this as a module, choose M here: the module will be
+ called cptpf.
diff --git a/drivers/crypto/cavium/cpt/Makefile b/drivers/crypto/cavium/cpt/Makefile
new file mode 100644
index 0000000..bf758e2
--- /dev/null
+++ b/drivers/crypto/cavium/cpt/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_OCTEONTX_CPT_PF) += cptpf.o
+cptpf-objs := cpt_main.o cpt_pf_mbox.o
diff --git a/drivers/crypto/cavium/cpt/cpt.h b/drivers/crypto/cavium/cpt/cpt.h
new file mode 100644
index 0000000..63d12da
--- /dev/null
+++ b/drivers/crypto/cavium/cpt/cpt.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2016 Cavium, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ */
+
+#ifndef __CPT_H
+#define __CPT_H
+
+#include "cpt_common.h"
+
+#define BASE_PROC_DIR "cavium"
+
+#define PF 0
+#define VF 1
+
+struct cpt_device;
+
+struct microcode {
+ uint8_t is_mc_valid;
+ uint8_t is_ae;
+ uint8_t group;
+ uint32_t code_size;
+ void *code;
+ uint8_t num_cores;
+ uint64_t core_mask_low; /* Used as long as num # cores are <= 64 */
+ uint64_t core_mask_hi; /* Unused for now */
+ uint8_t version[32];
+
+ /* Base info */
+ dma_addr_t dma;
+ dma_addr_t phys_base;
+ void *base;
+};
+
+#define VF_STATE_DOWN (0)
+#define VF_STATE_UP (1)
+
+struct cpt_vf_info {
+ uint8_t state;
+ uint8_t priority;
+ uint32_t qlen;
+ union cpt_chipid_vfid id;
+};
+
+/**
+ * cpt device structure
+ */
+struct cpt_device {
+ uint32_t chip_id; /**< CPT Device ID */
+ uint16_t core_freq; /**< CPT Device Frequency */
+ uint16_t flags; /**< Flags to hold device status bits */
+ uint8_t idx; /**< Device Index (0...MAX_CPT_DEVICES) */
+ uint8_t num_vf_en; /**< Number of VFs enabled (0...CPT_MAX_VF_NUM) */
+
+ struct cpt_vf_info vfinfo[CPT_MAX_VF_NUM]; /* Per VF info */
+ uint8_t next_mc_idx; /**< next microcode index */
+ uint8_t next_group;
+
+ uint8_t max_se_cores;
+ uint8_t max_ae_cores;
+ uint8_t avail_se_cores;
+ uint8_t avail_ae_cores;
+
+ void __iomem *reg_base; /* Register start address */
+
+ /* MSI-X */
+ bool msix_enabled;
+ uint8_t num_vec;
+ struct msix_entry msix_entries[CPT_PF_MSIX_VECTORS];
+ bool irq_allocated[CPT_PF_MSIX_VECTORS];
+
+ bool mbx_lock[CPT_MAX_VF_NUM]; /* Mailbox locks per VF */
+
+ struct pci_dev *pdev; /**< pci device handle */
+ void *proc; /**< proc dir */
+ struct microcode mcode[CPT_MAX_CORE_GROUPS];
+};
+
+struct cpt_device_list {
+ /* device list lock */
+ spinlock_t lock;
+ uint32_t nr_device;
+ struct cpt_device *device_ptr[MAX_CPT_DEVICES];
+};
+
+void cpt_mbox_intr_handler(struct cpt_device *cpt, int mbx);
+#endif /* __CPT_H */
diff --git a/drivers/crypto/cavium/cpt/cpt_common.h b/drivers/crypto/cavium/cpt/cpt_common.h
new file mode 100644
index 0000000..351ed4a
--- /dev/null
+++ b/drivers/crypto/cavium/cpt/cpt_common.h
@@ -0,0 +1,377 @@
+/*
+ * Copyright (C) 2016 Cavium, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ */
+
+#ifndef __CPT_COMMON_H
+#define __CPT_COMMON_H
+
+#include <asm/byteorder.h>
+#include <linux/uaccess.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/pci.h>
+#include <linux/cpumask.h>
+#include <linux/string.h>
+#include <linux/pci_regs.h>
+#include <linux/delay.h>
+#include <linux/printk.h>
+#include <linux/sched.h>
+#include <linux/completion.h>
+#include <asm/arch_timer.h>
+#include <linux/types.h>
+
+#include "cpt_hw_types.h"
+
+/* configuration space offsets */
+#ifndef PCI_VENDOR_ID
+#define PCI_VENDOR_ID 0x00 /* 16 bits */
+#endif
+#ifndef PCI_DEVICE_ID
+#define PCI_DEVICE_ID 0x02 /* 16 bits */
+#endif
+#ifndef PCI_REVISION_ID
+#define PCI_REVISION_ID 0x08 /* Revision ID */
+#endif
+#ifndef PCI_CAPABILITY_LIST
+#define PCI_CAPABILITY_LIST 0x34 /* first capability list entry */
+#endif
+
+/* Device ID */
+#define PCI_VENDOR_ID_CAVIUM 0x177d
+#define CPT_81XX_PCI_PF_DEVICE_ID 0xa040
+#define CPT_81XX_PCI_VF_DEVICE_ID 0xa041
+
+#define PASS_1_0 0x0
+
+/* CPT Models ((Device ID<<16)|Revision ID) */
+/* CPT models */
+#define CPT_81XX_PASS1_0 ((CPT_81XX_PCI_PF_DEVICE_ID << 8) | PASS_1_0)
+#define CPTVF_81XX_PASS1_0 ((CPT_81XX_PCI_VF_DEVICE_ID << 8) | PASS_1_0)
+
+#define PF 0
+#define VF 1
+
+#define DEFAULT_DEVICE_QUEUES CPT_NUM_QS_PER_VF
+
+#define SUCCESS (0)
+#define FAIL (1)
+
+#ifndef ROUNDUP4
+#define ROUNDUP4(val) (((val) + 3) & 0xfffffffc)
+#endif
+
+#ifndef ROUNDUP8
+#define ROUNDUP8(val) (((val) + 7) & 0xfffffff8)
+#endif
+
+#ifndef ROUNDUP16
+#define ROUNDUP16(val) (((val) + 15) & 0xfffffff0)
+#endif
+
+#define ERR_ADDR_LEN 8
+
+#define CPT_MBOX_MSG_TIMEOUT 2000
+#define VF_STATE_DOWN (0)
+#define VF_STATE_UP (1)
+
+/**< flags to indicate the features supported */
+#define CPT_FLAG_DMA_64BIT (uint16_t)(1 << 0)
+#define CPT_FLAG_MSIX_ENABLED (uint16_t)(1 << 1)
+#define CPT_FLAG_SRIOV_ENABLED (uint16_t)(1 << 2)
+#define CPT_FLAG_VF_DRIVER (uint16_t)(1 << 3)
+#define CPT_FLAG_DEVICE_READY (uint16_t)(1 << 4)
+
+#define cpt_msix_enabled(cpt) ((cpt)->flags & CPT_FLAG_MSIX_ENABLED)
+#define cpt_sriov_enabled(cpt) ((cpt)->flags & CPT_FLAG_SRIOV_ENABLED)
+#define cpt_vf_driver(cpt) ((cpt)->flags & CPT_FLAG_VF_DRIVER)
+#define cpt_pf_driver(cpt) (!((cpt)->flags & CPT_FLAG_VF_DRIVER))
+#define cpt_device_ready(cpt) ((cpt)->flags & CPT_FLAG_DEVICE_READY)
+
+#define MAX_CPT_DEVICES 2
+
+/* Default command queue length */
+#define DEFAULT_CMD_QLEN 2046
+#define DEFAULT_CMD_QCHUNK_SIZE 1023
+
+/* Max command queue length allowed. This is to restrict host memory usage */
+#define MAX_CMD_QLEN 16000
+
+/* Completion Interrupt threshold */
+#define COMPLETION_INTR_THOLD 1
+
+/* Default command timeout in seconds */
+#define DEFAULT_COMMAND_TIMEOUT 4
+
+/* Default Mailbox ACK timeout */
+#define DEFAULT_MBOX_ACK_TIMEOUT 4
+
+#define CPT_MBOX_MSG_TYPE_REQ 0
+#define CPT_MBOX_MSG_TYPE_ACK 1
+#define CPT_MBOX_MSG_TYPE_NACK 2
+#define CPT_MBOX_MSG_TYPE_NOP 3
+
+#define CPT_COUNT_THOLD 1
+#define CPT_TIMER_THOLD 0xFFFF
+#define CPT_DBELL_THOLD 1
+
+/*
+ * CPT Registers map for 81xx
+ */
+
+/* PF registers */
+#define CPTX_PF_CONSTANTS(a) (0x0ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_RESET(a) (0x100ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_DIAG(a) (0x120ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_BIST_STATUS(a) (0x160ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_ECC0_CTL(a) (0x200ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_ECC0_FLIP(a) (0x210ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_ECC0_INT(a) (0x220ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_ECC0_INT_W1S(a) (0x230ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_ECC0_ENA_W1S(a) (0x240ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_ECC0_ENA_W1C(a) (0x250ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_MBOX_INTX(a, b) \
+ (0x400ll + 0x1000000000ll * ((a) & 0x1) + 8ll * ((b) & 0x0))
+#define CPTX_PF_MBOX_INT_W1SX(a, b) \
+ (0x420ll + 0x1000000000ll * ((a) & 0x1) + 8ll * ((b) & 0x0))
+#define CPTX_PF_MBOX_ENA_W1CX(a, b) \
+ (0x440ll + 0x1000000000ll * ((a) & 0x1) + 8ll * ((b) & 0x0))
+#define CPTX_PF_MBOX_ENA_W1SX(a, b) \
+ (0x460ll + 0x1000000000ll * ((a) & 0x1) + 8ll * ((b) & 0x0))
+#define CPTX_PF_EXEC_INT(a) (0x500ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXEC_INT_W1S(a) (0x520ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXEC_ENA_W1C(a) (0x540ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXEC_ENA_W1S(a) (0x560ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_GX_EN(a, b) \
+ (0x600ll + 0x1000000000ll * ((a) & 0x1) + 8ll * ((b) & 0x7))
+#define CPTX_PF_EXEC_INFO(a) (0x700ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXEC_BUSY(a) (0x800ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXEC_INFO0(a) (0x900ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXEC_INFO1(a) (0x910ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_INST_REQ_PC(a) (0x10000ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_INST_LATENCY_PC(a) \
+ (0x10020ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_RD_REQ_PC(a) (0x10040ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_RD_LATENCY_PC(a) (0x10060ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_RD_UC_PC(a) (0x10080ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_ACTIVE_CYCLES_PC(a) \
+ (0x10100ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_CTL(a) (0x4000000ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_STATUS(a) (0x4000008ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_CLK(a) (0x4000010ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_DBG_CTL(a) (0x4000018ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_DBG_DATA(a) (0x4000020ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_BIST_STATUS(a) \
+ (0x4000028ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_REQ_TIMER(a) (0x4000030ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_MEM_CTL(a) (0x4000038ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_PERF_CTL(a) (0x4001000ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_DBG_CNTX(a, b) \
+ (0x4001100ll + 0x1000000000ll * ((a) & 0x1) + 8ll * ((b) & 0xf))
+#define CPTX_PF_EXE_PERF_EVENT_CNT(a) \
+ (0x4001180ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_EXE_EPCI_INBX_CNT(a, b) \
+ (0x4001200ll + 0x1000000000ll * ((a) & 0x1) + 8ll * ((b) & 0x0))
+#define CPTX_PF_EXE_EPCI_OUTBX_CNT(a, b) \
+ (0x4001240ll + 0x1000000000ll * ((a) & 0x1) + 8ll * ((b) & 0x0))
+#define CPTX_PF_ENGX_UCODE_BASE(a, b) \
+ (0x4002000ll + 0x1000000000ll * ((a) & 0x1) + 8ll * ((b) & 0x3f))
+#define CPTX_PF_QX_CTL(a, b) \
+ (0x8000000ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_PF_QX_GMCTL(a, b) \
+ (0x8000020ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_PF_QX_CTL2(a, b) \
+ (0x8000100ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_PF_VFX_MBOXX(a, b, c) \
+ (0x8001000ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf) + 0x100ll * ((c) & 0x1))
+#define CPTX_PF_MSIX_VECX_ADDR(a, b) \
+ (0x0ll + 0x1000000000ll * ((a) & 0x1) + 0x10ll * ((b) & 0x3))
+#define CPTX_PF_MSIX_VECX_CTL(a, b) \
+ (0x8ll + 0x1000000000ll * ((a) & 0x1) + 0x10ll * ((b) & 0x3))
+#define CPTX_PF_MSIX_PBAX(a, b) \
+ (0xf0000ll + 0x1000000000ll * ((a) & 0x1) + 8ll * ((b) & 0x0))
+
+/* VF registers */
+#define CPTX_VQX_CTL(a, b) \
+ (0x100ll + 0x1000000000ll * ((a) & 0x0) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_SADDR(a, b) \
+ (0x200ll + 0x1000000000ll * ((a) & 0x0) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_DONE_WAIT(a, b) \
+ (0x400ll + 0x1000000000ll * ((a) & 0x0) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_INPROG(a, b) \
+ (0x410ll + 0x1000000000ll * ((a) & 0x0) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_DONE(a, b) \
+ (0x420ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_DONE_ACK(a, b) \
+ (0x440ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_DONE_INT_W1S(a, b) \
+ (0x460ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_DONE_INT_W1C(a, b) \
+ (0x468ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_DONE_ENA_W1S(a, b) \
+ (0x470ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_DONE_ENA_W1C(a, b) \
+ (0x478ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_MISC_INT(a, b) \
+ (0x500ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_MISC_INT_W1S(a, b) \
+ (0x508ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_MISC_ENA_W1S(a, b) \
+ (0x510ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_MISC_ENA_W1C(a, b) \
+ (0x518ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VQX_DOORBELL(a, b) \
+ (0x600ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf))
+#define CPTX_VFX_PF_MBOXX(a, b, c) \
+ (0x1000ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf) + 8ll * ((c) & 0x1))
+#define CPTX_VFX_MSIX_VECX_ADDR(a, b, c) \
+ (0x0ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf) + 0x10ll * ((c) & 0x1))
+#define CPTX_VFX_MSIX_VECX_CTL(a, b, c) \
+ (0x8ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf) + 0x10ll * ((c) & 0x1))
+#define CPTX_VFX_MSIX_PBAX(a, b, c) \
+ (0xf0000ll + 0x1000000000ll * ((a) & 0x1) + 0x100000ll * ((b) & 0xf) + 8ll * ((c) & 0x0))
+
+/* Future extensions */
+#define CPTX_BRIDGE_BP_TEST(a) (0x1c0ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_CQM_CORE_OBS0(a) (0x1a0ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_CQM_CORE_OBS1(a) (0x1a8ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_NCBI_OBS(a) (0x190ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_BP_TEST(a) (0x180ll + 0x1000000000ll * ((a) & 0x1))
+#define CPTX_PF_ECO(a) (0x140ll + 0x1000000000ll * ((a) & 0x1))
+
+/*###### PCIE EP-Mode Configuration Registers #########*/
+#define PCIEEP0_CFG000 (0x0)
+#define PCIEEP0_CFG002 (0x8)
+#define PCIEEP0_CFG011 (0x2C)
+#define PCIEEP0_CFG020 (0x50)
+#define PCIEEP0_CFG025 (0x64)
+#define PCIEEP0_CFG030 (0x78)
+#define PCIEEP0_CFG044 (0xB0)
+#define PCIEEP0_CFG045 (0xB4)
+#define PCIEEP0_CFG082 (0x148)
+#define PCIEEP0_CFG095 (0x17C)
+#define PCIEEP0_CFG096 (0x180)
+#define PCIEEP0_CFG097 (0x184)
+#define PCIEEP0_CFG103 (0x19C)
+#define PCIEEP0_CFG460 (0x730)
+#define PCIEEP0_CFG461 (0x734)
+#define PCIEEP0_CFG462 (0x738)
+
+/*####### PCIe EP-Mode SR-IOV Configuration Registers #####*/
+#define PCIEEPVF0_CFG000 (0x0)
+#define PCIEEPVF0_CFG002 (0x8)
+#define PCIEEPVF0_CFG011 (0x2C)
+#define PCIEEPVF0_CFG030 (0x78)
+#define PCIEEPVF0_CFG044 (0xB0)
+
+enum vftype {
+ AE_TYPES = 1,
+ SE_TYPES = 2,
+ BAD_CPT_TYPES,
+};
+
+static inline int32_t count_set_bits(uint64_t mask)
+{
+ int32_t count = 0;
+
+ while (mask) {
+ if (mask & 1ULL)
+ count++;
+ mask = mask >> 1;
+ }
+
+ return count;
+}
+
+static const uint8_t cpt_device_name[] = "CPT81XX";
+static const uint8_t cptvf_device_name[] = "CPT81XX-VF";
+static const uint8_t cpt_device_file[] = "cpt";
+static const uint8_t cptvf_device_file[] = "cptvf";
+
+static const uint8_t cpt_driver_name[] = "CPT Driver";
+static const uint8_t cpt_driver_class[] = "crypto";
+static const uint8_t cptvf_driver_class[] = "cryptovf";
+
+/* Max CPT devices supported */
+enum cpt_mbox_opcode {
+ CPT_MSG_VF_CFG = 1,
+ CPT_MSG_VF_UP,
+ CPT_MSG_VF_DOWN,
+ CPT_MSG_CHIPID_VFID,
+ CPT_MSG_READY,
+ CPT_MSG_QLEN,
+ CPT_MSG_QBIND_GRP,
+ CPT_MSG_VQ_PRIORITY,
+ CPT_MSG_VF_QUERY_HEALTH,
+};
+
+union cpt_chipid_vfid {
+ uint16_t u16;
+ struct {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ uint16_t chip_id:8;
+ uint16_t vfid:8;
+#else
+ uint16_t vfid:8;
+ uint16_t chip_id:8;
+#endif
+ } s;
+};
+
+/* CPT mailbox structure */
+struct cpt_mbox {
+ uint64_t msg; /* Message type MBOX[0] */
+ uint64_t data;/* Data MBOX[1] */
+};
+
+/* The Cryptographic Acceleration Unit can *only* be found in SoCs
+ * containing the ThunderX ARM64 CPU implementation. All accesses to the device
+ * registers on this platform are implicitly strongly ordered with respect
+ * to memory accesses. So writeq_relaxed() and readq_relaxed() are safe to use
+ * with no memory barriers in this driver. The readq()/writeq() functions add
+ * explicit ordering operation which in this case are redundant, and only
+ * add overhead.
+ */
+/* Register read/write APIs */
+static inline void cpt_write_csr64(uint8_t __iomem *hw_addr, uint64_t offset,
+ uint64_t val)
+{
+ uint8_t __iomem *base = ACCESS_ONCE(hw_addr);
+
+ writeq_relaxed(val, base + offset);
+}
+
+static inline uint64_t cpt_read_csr64(uint8_t __iomem *hw_addr, uint64_t offset)
+{
+ uint8_t __iomem *base = ACCESS_ONCE(hw_addr);
+
+ return readq_relaxed(base + offset);
+}
+
+static inline void byte_swap_64(uint64_t *data)
+{
+ uint64_t val = 0ULL;
+ uint8_t *a, *b;
+
+ a = (uint8_t *)data;
+ b = (uint8_t *)&val;
+ b[0] = a[7];
+ b[1] = a[6];
+ b[2] = a[5];
+ b[3] = a[4];
+ b[4] = a[3];
+ b[5] = a[2];
+ b[6] = a[1];
+ b[7] = a[0];
+ *data = val;
+}
+
+static inline void byte_swap_16(uint16_t *data)
+{
+ uint16_t val = *data;
+ *data = (val >> 8) | (val << 8);
+}
+#endif /* __CPT_COMMON_H */
diff --git a/drivers/crypto/cavium/cpt/cpt_hw_types.h b/drivers/crypto/cavium/cpt/cpt_hw_types.h
new file mode 100644
index 0000000..a6def18
--- /dev/null
+++ b/drivers/crypto/cavium/cpt/cpt_hw_types.h
@@ -0,0 +1,940 @@
+/*
+ * Copyright (C) 2016 Cavium, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ */
+
+#ifndef __CPT_HW_TYPES_H
+#define __CPT_HW_TYPES_H
+
+#include "cpt_common.h"
+
+#define NR_CLUSTER (4)
+#define CSR_DELAY (30)
+
+#define CPT_NUM_QS_PER_VF (1)
+#define CPT_INST_SIZE (64)
+#define CPT_VQ_CHUNK_ALIGN (128) /**< 128 byte align */
+#define CPT_NEXT_CHUNK_PTR_SIZE (8)
+#define CPT_INST_CHUNK_MAX_SIZE (1023)
+
+#define CPT_MAX_CORE_GROUPS (8)
+#define CPT_MAX_SE_CORES (10)
+#define CPT_MAX_AE_CORES (6)
+#define CPT_MAX_TOTAL_CORES (CPT_MAX_SE_CORES + CPT_MAX_AE_CORES)
+#define CPT_MAX_VF_NUM (16)
+#define CPT_MAX_VQ_NUM (16)
+#define CPT_PF_VF_MAILBOX_SIZE (2)
+
+/* MSI-X interrupts */
+#define CPT_PF_MSIX_VECTORS (3)
+#define CPT_VF_MSIX_VECTORS (2)
+
+/* Configuration and Status registers are in BAR 0 */
+#define CPT_CSR_BAR 0
+#define CPT_MSIX_BAR 4
+
+/**
+ * Enumeration cpt_bar_e
+ *
+ * CPT Base Address Register Enumeration
+ * Enumerates the base address registers.
+ */
+#define CPT_BAR_E_CPTX_PF_BAR0(a) (0x872000000000ll + 0x1000000000ll * (a))
+#define CPT_BAR_E_CPTX_PF_BAR4(a) (0x872010000000ll + 0x1000000000ll * (a))
+#define CPT_BAR_E_CPTX_VFX_BAR0(a, b) \
+ (0x872020000000ll + 0x1000000000ll * (a) + 0x100000ll * (b))
+#define CPT_BAR_E_CPTX_VFX_BAR4(a, b) \
+ (0x872030000000ll + 0x1000000000ll * (a) + 0x100000ll * (b))
+
+/**
+ * Enumeration cpt_comp_e
+ *
+ * CPT Completion Enumeration
+ * Enumerates the values of CPT_RES_S[COMPCODE].
+ */
+enum cpt_comp_e {
+ CPT_COMP_E_NOTDONE = 0x00,
+ CPT_COMP_E_GOOD = 0x01,
+ CPT_COMP_E_FAULT = 0x02,
+ CPT_COMP_E_SWERR = 0x03,
+ CPT_COMP_E_LAST_ENTRY = 0xFF
+};
+
+/**
+ * Enumeration cpt_engine_err_type_e
+ *
+ * CPT Engine Error Code Enumeration
+ * Enumerates the values of CPT_RES_S[COMPCODE].
+ */
+enum cpt_engine_err_type_e {
+ CPT_ENGINE_ERR_TYPE_E_NOERR = 0x00,
+ CPT_ENGINE_ERR_TYPE_E_RF = 0x01,
+ CPT_ENGINE_ERR_TYPE_E_UC = 0x02,
+ CPT_ENGINE_ERR_TYPE_E_WD = 0x04,
+ CPT_ENGINE_ERR_TYPE_E_GE = 0x08,
+ CPT_ENGINE_ERR_TYPE_E_BUS = 0x20,
+ CPT_ENGINE_ERR_TYPE_E_LAST = 0xFF
+};
+
+/**
+ * Enumeration cpt_eop_e
+ *
+ * CPT EOP (EPCI Opcodes) Enumeration
+ * Opcodes on the epci bus.
+ */
+enum cpt_eop_e {
+ CPT_EOP_E_DMA_RD_LDT = 0x01,
+ CPT_EOP_E_DMA_RD_LDI = 0x02,
+ CPT_EOP_E_DMA_RD_LDY = 0x06,
+ CPT_EOP_E_DMA_RD_LDD = 0x08,
+ CPT_EOP_E_DMA_RD_LDE = 0x0b,
+ CPT_EOP_E_DMA_RD_LDWB = 0x0d,
+ CPT_EOP_E_DMA_WR_STY = 0x0e,
+ CPT_EOP_E_DMA_WR_STT = 0x11,
+ CPT_EOP_E_DMA_WR_STP = 0x12,
+ CPT_EOP_E_ATM_FAA64 = 0x3b,
+ CPT_EOP_E_RANDOM1_REQ = 0x61,
+ CPT_EOP_E_RANDOM_REQ = 0x60,
+ CPT_EOP_E_ERR_REQUEST = 0xfb,
+ CPT_EOP_E_UCODE_REQ = 0xfc,
+ CPT_EOP_E_MEMB = 0xfd,
+ CPT_EOP_E_NEW_WORK_REQ = 0xff,
+};
+
+/**
+ * Enumeration cpt_pf_int_vec_e
+ *
+ * CPT PF MSI-X Vector Enumeration
+ * Enumerates the MSI-X interrupt vectors.
+ */
+enum cpt_pf_int_vec_e {
+ CPT_PF_INT_VEC_E_ECC0 = 0x00,
+ CPT_PF_INT_VEC_E_EXEC = 0x01
+};
+
+#define CPT_PF_INT_VEC_E_MBOXX(a) (0x02 + (a))
+
+/**
+ * Enumeration cpt_rams_e
+ *
+ * CPT RAM Field Enumeration
+ * Enumerates the relative bit positions within CPT()_PF_ECC0_CTL[CDIS].
+ */
+enum cpt_rams_e {
+ CPT_RAMS_E_NCBI_DATFIF = 0x00,
+ CPT_RAMS_E_NCBO_MEM0 = 0x01,
+ CPT_RAMS_E_CQM_CTLMEM = 0x02,
+ CPT_RAMS_E_CQM_BPTR = 0x03,
+ CPT_RAMS_E_CQM_GMID = 0x04,
+ CPT_RAMS_E_CQM_INSTFIF0 = 0x05,
+ CPT_RAMS_E_CQM_INSTFIF1 = 0x06,
+ CPT_RAMS_E_CQM_INSTFIF2 = 0x07,
+ CPT_RAMS_E_CQM_INSTFIF3 = 0x08,
+ CPT_RAMS_E_CQM_INSTFIF4 = 0x09,
+ CPT_RAMS_E_CQM_INSTFIF5 = 0x0a,
+ CPT_RAMS_E_CQM_INSTFIF6 = 0x0b,
+ CPT_RAMS_E_CQM_INSTFIF7 = 0x0c,
+ CPT_RAMS_E_CQM_DONE_CNT = 0x0d,
+ CPT_RAMS_E_CQM_DONE_TIMER = 0x0e,
+ CPT_RAMS_E_COMP_FIFO = 0x0f,
+ CPT_RAMS_E_MBOX_MEM = 0x10,
+ CPT_RAMS_E_FPA_MEM = 0x11,
+ CPT_RAMS_E_CDEI_UCODE = 0x12,
+ CPT_RAMS_E_COMP_ARRAY0 = 0x13,
+ CPT_RAMS_E_COMP_ARRAY1 = 0x14,
+ CPT_RAMS_E_CSR_VMEM = 0x15,
+ CPT_RAMS_E_RSP_MAP = 0x16,
+ CPT_RAMS_E_RSP_INST = 0x17,
+ CPT_RAMS_E_RSP_NCBO = 0x18,
+ CPT_RAMS_E_RSP_RNM = 0x19,
+ CPT_RAMS_E_CDEI_FIFO0 = 0x1a,
+ CPT_RAMS_E_CDEI_FIFO1 = 0x1b,
+ CPT_RAMS_E_EPCO_FIFO0 = 0x1c,
+ CPT_RAMS_E_EPCO_FIFO1 = 0x1d,
+ CPT_RAMS_E_LAST_ENTRY = 0xff
+};
+
+/**
+ * Enumeration cpt_vf_int_vec_e
+ *
+ * CPT VF MSI-X Vector Enumeration
+ * Enumerates the MSI-X interrupt vectors.
+ */
+enum cpt_vf_int_vec_e {
+ CPT_VF_INT_VEC_E_MISC = 0x00,
+ CPT_VF_INT_VEC_E_DONE = 0x01
+};
+
+#define CPT_VF_INTR_MBOX_MASK BIT(0)
+#define CPT_VF_INTR_DOVF_MASK BIT(1)
+#define CPT_VF_INTR_IRDE_MASK BIT(2)
+#define CPT_VF_INTR_NWRP_MASK BIT(3)
+#define CPT_VF_INTR_SERR_MASK BIT(4)
+
+/**
+ * Structure cpt_inst_s
+ *
+ * CPT Instruction Structure
+ * This structure specifies the instruction layout. Instructions are
+ * stored in memory as little-endian unless CPT()_PF_Q()_CTL[INST_BE] is set.
+ * cpt_inst_s_s
+ * Word 0
+ * doneint:1 Done interrupt.
+ * 0 = No interrupts related to this instruction.
+ * 1 = When the instruction completes, CPT()_VQ()_DONE[DONE] will be
+ * incremented,and based on the rules described there an interrupt may
+ * occur.
+ * Word 1
+ * res_addr:64 [127: 64] Result IOVA.
+ * If nonzero, specifies where to write CPT_RES_S.
+ * If zero, no result structure will be written.
+ * Address must be 16-byte aligned.
+ * Bits <63:49> are ignored by hardware; software should use a
+ * sign-extended bit <48> for forward compatibility.
+ * Word 2
+ * grp:10 [171:162] If [WQ_PTR] is nonzero, the SSO guest-group to use when
+ * CPT submits work SSO.
+ * For the SSO to not discard the add-work request, FPA_PF_MAP() must map
+ * [GRP] and CPT()_PF_Q()_GMCTL[GMID] as valid.
+ * tt:2 [161:160] If [WQ_PTR] is nonzero, the SSO tag type to use when CPT
+ * submits work to SSO
+ * tag:32 [159:128] If [WQ_PTR] is nonzero, the SSO tag to use when CPT
+ * submits work to SSO.
+ * Word 3
+ * wq_ptr:64 [255:192] If [WQ_PTR] is nonzero, it is a pointer to a
+ * work-queue entry that CPT submits work to SSO after all context,
+ * output data, and result write operations are visible to other
+ * CNXXXX units and the cores. Bits <2:0> must be zero.
+ * Bits <63:49> are ignored by hardware; software should
+ * use a sign-extended bit <48> for forward compatibility.
+ * Internal:
+ * Bits <63:49>, <2:0> are ignored by hardware, treated as always 0x0.
+ * Word 4
+ * ei0:64; [319:256] Engine instruction word 0. Passed to the AE/SE.
+ * Word 5
+ * ei1:64; [383:320] Engine instruction word 1. Passed to the AE/SE.
+ * Word 6
+ * ei2:64; [447:384] Engine instruction word 1. Passed to the AE/SE.
+ * Word 7
+ * ei3:64; [511:448] Engine instruction word 1. Passed to the AE/SE.
+ *
+ */
+union cpt_inst_s {
+ uint64_t u[8];
+ struct cpt_inst_s_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_17_63:47;
+ uint64_t doneint:1;
+ uint64_t reserved_0_1:16;
+#else /* Word 0 - Little Endian */
+ uint64_t reserved_0_15:16;
+ uint64_t doneint:1;
+ uint64_t reserved_17_63:47;
+#endif /* Word 0 - End */
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 1 - Big Endian */
+ uint64_t res_addr:64;
+#else /* Word 1 - Little Endian */
+ uint64_t res_addr:64;
+#endif /* Word 1 - End */
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 2 - Big Endian */
+ uint64_t reserved_172_19:20;
+ uint64_t grp:10;
+ uint64_t tt:2;
+ uint64_t tag:32;
+#else /* Word 2 - Little Endian */
+ uint64_t tag:32;
+ uint64_t tt:2;
+ uint64_t grp:10;
+ uint64_t reserved_172_191:20;
+#endif /* Word 2 - End */
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 3 - Big Endian */
+ uint64_t wq_ptr:64;
+#else /* Word 3 - Little Endian */
+ uint64_t wq_ptr:64;
+#endif /* Word 3 - End */
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 4 - Big Endian */
+ uint64_t ei0:64;
+#else /* Word 4 - Little Endian */
+ uint64_t ei0:64;
+#endif /* Word 4 - End */
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 5 - Big Endian */
+ uint64_t ei1:64;
+#else /* Word 5 - Little Endian */
+ uint64_t ei1:64;
+#endif /* Word 5 - End */
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 6 - Big Endian */
+ uint64_t ei2:64;
+#else /* Word 6 - Little Endian */
+ uint64_t ei2:64;
+#endif /* Word 6 - End */
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 7 - Big Endian */
+ uint64_t ei3:64;
+#else /* Word 7 - Little Endian */
+ uint64_t ei3:64;
+#endif /* Word 7 - End */
+ } s;
+};
+
+/**
+ * Structure cpt_res_s
+ *
+ * CPT Result Structure
+ * The CPT coprocessor writes the result structure after it completes a
+ * CPT_INST_S instruction. The result structure is exactly 16 bytes, and
+ * each instruction completion produces exactly one result structure.
+ *
+ * This structure is stored in memory as little-endian unless
+ * CPT()_PF_Q()_CTL[INST_BE] is set.
+ * cpt_res_s_s
+ * Word 0
+ * doneint:1 [16:16] Done interrupt. This bit is copied from the
+ * corresponding instruction's CPT_INST_S[DONEINT].
+ * compcode:8 [7:0] Indicates completion/error status of the CPT coprocessor
+ * for the associated instruction, as enumerated by CPT_COMP_E.
+ * Core software may write the memory location containing [COMPCODE] to
+ * 0x0 before ringing the doorbell, and then poll for completion by
+ * checking for a nonzero value.
+ * Once the core observes a nonzero [COMPCODE] value in this case,the CPT
+ * coprocessor will have also completed L2/DRAM write operations.
+ * Word 1
+ * reserved
+ *
+ */
+union cpt_res_s {
+ uint64_t u[2];
+ struct cpt_res_s_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_17_63:47;
+ uint64_t doneint:1;
+ uint64_t reserved_8_15:8;
+ uint64_t compcode:8;
+#else /* Word 0 - Little Endian */
+ uint64_t compcode:8;
+ uint64_t reserved_8_15:8;
+ uint64_t doneint:1;
+ uint64_t reserved_17_63:47;
+#endif /* Word 0 - End */
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 1 - Big Endian */
+ uint64_t reserved_64_127:64;
+#else /* Word 1 - Little Endian */
+ uint64_t reserved_64_127:64;
+#endif /* Word 1 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_pf_bist_status
+ *
+ * CPT PF Control Bist Status Register
+ * This register has the BIST status of memories. Each bit is the BIST result
+ * of an individual memory (per bit, 0 = pass and 1 = fail).
+ * cptx_pf_bist_status_s
+ * Word0
+ * bstatus [29:0](RO/H) BIST status. One bit per memory, enumerated by
+ * CPT_RAMS_E.
+ */
+union cptx_pf_bist_status {
+ uint64_t u;
+ struct cptx_pf_bist_status_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_30_63:34;
+ uint64_t bstatus:30;
+#else /* Word 0 - Little Endian */
+ uint64_t bstatus:30;
+ uint64_t reserved_30_63:34;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_pf_constants
+ *
+ * CPT PF Constants Register
+ * This register contains implementation-related parameters of CPT in CNXXXX.
+ * cptx_pf_constants_s
+ * Word 0
+ * reserved_40_63:24 [63:40] Reserved.
+ * epcis:8 [39:32](RO) Number of EPCI busses.
+ * grps:8 [31:24](RO) Number of engine groups implemented.
+ * ae:8 [23:16](RO/H) Number of AEs. In CNXXXX, for CPT0 returns 0x0,
+ * for CPT1 returns 0x18, or less if there are fuse-disables.
+ * se:8 [15:8](RO/H) Number of SEs. In CNXXXX, for CPT0 returns 0x30,
+ * or less if there are fuse-disables, for CPT1 returns 0x0.
+ * vq:8 [7:0](RO) Number of VQs.
+ * cptx_pf_constants_cn81xx
+ * Word 0
+ * reserved_40_63:24 [63:40] Reserved
+ * epcis:8 [39:32](RO) Number of EPCI busses.
+ * grps:8 [31:24](RO) Number of engine groups implemented.
+ * ae:8 [23:16](RO/H) Number of AEs. In CNXXXX, returns 0x6 or less
+ * if there are fuse-disables.
+ * se:8 [15: 8](RO/H) Number of SEs. In CNXXXX, returns 0xA, or less
+ * if there are fuse-disables.
+ * vq:8 [7:0](RO) Number of VQs.
+ *
+ */
+union cptx_pf_constants {
+ uint64_t u;
+ struct cptx_pf_constants_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_40_63:24;
+ uint64_t epcis:8;
+ uint64_t grps:8;
+ uint64_t ae:8;
+ uint64_t se:8;
+ uint64_t vq:8;
+#else /* Word 0 - Little Endian */
+ uint64_t vq:8;
+ uint64_t se:8;
+ uint64_t ae:8;
+ uint64_t grps:8;
+ uint64_t epcis:8;
+ uint64_t reserved_40_63:24;
+#endif /* Word 0 - End */
+ } s;
+ struct cptx_pf_constants_cn81xx {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_40_63:24;
+ uint64_t epcis:8;
+ uint64_t grps:8;
+ uint64_t ae:8;
+ uint64_t se:8;
+ uint64_t vq:8;
+#else /* Word 0 - Little Endian */
+ uint64_t vq:8;
+ uint64_t se:8;
+ uint64_t ae:8;
+ uint64_t grps:8;
+ uint64_t epcis:8;
+ uint64_t reserved_40_63:24;
+#endif /* Word 0 - End */
+ } cn81xx;
+};
+
+/**
+ * Register (NCB) cpt#_pf_exe_bist_status
+ *
+ * CPT PF Engine Bist Status Register
+ * This register has the BIST status of each engine. Each bit is the
+ * BIST result of an individual engine (per bit, 0 = pass and 1 = fail).
+ * cptx_pf_exe_bist_status_s
+ * Word0
+ * reserved_48_63:16 [63:48] reserved
+ * bstatus:48 [47:0](RO/H) BIST status. One bit per engine.
+ *
+ */
+union cptx_pf_exe_bist_status {
+ uint64_t u;
+ struct cptx_pf_exe_bist_status_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_48_63:16;
+ uint64_t bstatus:48
+#else /* Word 0 - Little Endian */
+ uint64_t bstatus:48;
+ uint64_t reserved_48_63:16;
+#endif /* Word 0 - End */
+ } s;
+ struct cptx_pf_exe_bist_status_cn81xx {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_16_63:48;
+ uint64_t bstatus:16;
+#else /* Word 0 - Little Endian */
+ uint64_t bstatus:16;
+ uint64_t reserved_16_63:48;
+#endif /* Word 0 - End */
+ } cn81xx;
+};
+
+/**
+ * Register (NCB) cpt#_pf_exe_ctl
+ *
+ * CPT PF Engine Control Register
+ * This register enables the engines.
+ * cptx_pf_exe_ctl_s
+ * Word0
+ * enable:64 [63:0](R/W) Individual enables for each of the engines.
+ */
+union cptx_pf_exe_ctl {
+ uint64_t u;
+ struct cptx_pf_exe_ctl_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t enable:64;
+#else /* Word 0 - Little Endian */
+ uint64_t enable:64;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_pf_q#_ctl
+ *
+ * CPT Queue Control Register
+ * This register configures queues. This register should be changed only
+ * when quiescent (see CPT()_VQ()_INPROG[INFLIGHT]).
+ * cptx_pf_qx_ctl_s
+ * Word0
+ * reserved_60_63:4 [63:60] reserved.
+ * aura:12; [59:48](R/W) Guest-aura for returning this queue's
+ * instruction-chunk buffers to FPA. Only used when [INST_FREE] is set.
+ * For the FPA to not discard the request, FPA_PF_MAP() must map
+ * [AURA] and CPT()_PF_Q()_GMCTL[GMID] as valid.
+ * reserved_45_47:3 [47:45] reserved.
+ * size:13 [44:32](R/W) Command-buffer size, in number of 64-bit words per
+ * command buffer segment. Must be 8*n + 1, where n is the number of
+ * instructions per buffer segment.
+ * reserved_11_31:21 [31:11] Reserved.
+ * cont_err:1 [10:10](R/W) Continue on error.
+ * 0 = When CPT()_VQ()_MISC_INT[NWRP], CPT()_VQ()_MISC_INT[IRDE] or
+ * CPT()_VQ()_MISC_INT[DOVF] are set by hardware or software via
+ * CPT()_VQ()_MISC_INT_W1S, then CPT()_VQ()_CTL[ENA] is cleared. Due to
+ * pipelining, additional instructions may have been processed between the
+ * instruction causing the error and the next instruction in the disabled
+ * queue (the instruction at CPT()_VQ()_SADDR).
+ * 1 = Ignore errors and continue processing instructions.
+ * For diagnostic use only.
+ * inst_free:1 [9:9](R/W) Instruction FPA free. When set, when CPT reaches the
+ * end of an instruction chunk, that chunk will be freed to the FPA.
+ * inst_be:1 [8:8](R/W) Instruction big-endian control. When set, instructions,
+ * instruction next chunk pointers, and result structures are stored in
+ * big-endian format in memory.
+ * iqb_ldwb:1 [7:7](R/W) Instruction load don't write back.
+ * 0 = The hardware issues NCB transient load (LDT) towards the cache,
+ * which if the line hits and is is dirty will cause the line to be
+ * written back before being replaced.
+ * 1 = The hardware issues NCB LDWB read-and-invalidate command towards
+ * the cache when fetching the last word of instructions; as a result the
+ * line will not be written back when replaced. This improves
+ * performance, but software must not read the instructions after they are
+ * posted to the hardware. Reads that do not consume the last word of a
+ * cache line always use LDI.
+ * reserved_4_6:3 [6:4] Reserved.
+ * grp:3; [3:1](R/W) Engine group.
+ * pri:1; [0:0](R/W) Queue priority.
+ * 1 = This queue has higher priority. Round-robin between higher
+ * priority queues.
+ * 0 = This queue has lower priority. Round-robin between lower
+ * priority queues.
+ */
+union cptx_pf_qx_ctl {
+ uint64_t u;
+ struct cptx_pf_qx_ctl_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_60_63:4;
+ uint64_t aura:12;
+ uint64_t reserved_45_47:3;
+ uint64_t size:13;
+ uint64_t reserved_11_31:21;
+ uint64_t cont_err:1;
+ uint64_t inst_free:1;
+ uint64_t inst_be:1;
+ uint64_t iqb_ldwb:1;
+ uint64_t reserved_4_6:3;
+ uint64_t grp:3;
+ uint64_t pri:1;
+#else /* Word 0 - Little Endian */
+ uint64_t pri:1;
+ uint64_t grp:3;
+ uint64_t reserved_4_6:3;
+ uint64_t iqb_ldwb:1;
+ uint64_t inst_be:1;
+ uint64_t inst_free:1;
+ uint64_t cont_err:1;
+ uint64_t reserved_11_31:21;
+ uint64_t size:13;
+ uint64_t reserved_45_47:3;
+ uint64_t aura:12;
+ uint64_t reserved_60_63:4;
+#endif /* Word 0 - End */
+ } s;
+ /* struct cptx_pf_qx_ctl_s cn; */
+};
+
+/**
+ * Register (NCB) cpt#_pf_g#_en
+ *
+ * CPT PF Group Control Register
+ * This register configures engine groups.
+ * cptx_pf_gx_en_s
+ * Word0
+ * en: 64; [63:0](R/W/H) Engine group enable. One bit corresponds to each
+ * engine, with the bit set to indicate this engine can service this group.
+ * Bits corresponding to unimplemented engines read as zero, i.e. only bit
+ * numbers less than CPT()_PF_CONSTANTS[AE] + CPT()_PF_CONSTANTS[SE] are
+ * writable. AE engine bits follow SE engine bits.
+ * E.g. if CPT()_PF_CONSTANTS[AE] = 0x1, and CPT()_PF_CONSTANTS[SE] = 0x2,
+ * then bits <2:0> are read/writable with bit <2> corresponding to AE<0>,
+ * and bit <1> to SE<1>, and bit<0> to SE<0>. Before disabling an engine,
+ * the corresponding bit in each group must be cleared. CPT()_PF_EXEC_BUSY
+ * can then be polled to determing when the engine becomes idle.
+ * At the point, the engine can be disabled.
+ */
+union cptx_pf_gx_en {
+ uint64_t u;
+ struct cptx_pf_gx_en_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t en:64;
+#else /* Word 0 - Little Endian */
+ uint64_t en:64;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_vq#_saddr
+ *
+ * CPT Queue Starting Buffer Address Registers
+ * These registers set the instruction buffer starting address.
+ * cptx_vqx_saddr_s
+ * Word0
+ * reserved_49_63:15 [63:49] Reserved.
+ * ptr:43 [48:6](R/W/H) Instruction buffer IOVA <48:6> (64-byte aligned).
+ * When written, it is the initial buffer starting address; when read,
+ * it is the next read pointer to be requested from L2C. The PTR field
+ * is overwritten with the next pointer each time that the command buffer
+ * segment is exhausted. New commands will then be read from the newly
+ * specified command buffer pointer.
+ * reserved_0_5:6 [5:0] Reserved.
+ *
+ */
+union cptx_vqx_saddr {
+ uint64_t u;
+ struct cptx_vqx_saddr_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_49_63:15;
+ uint64_t ptr:43
+ uint64_t reserved_0_5:6;
+#else /* Word 0 - Little Endian */
+ uint64_t reserved_0_5:6;
+ uint64_t ptr:43;
+ uint64_t reserved_49_63:15;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_vq#_misc_ena_w1s
+ *
+ * CPT Queue Misc Interrupt Enable Set Register
+ * This register sets interrupt enable bits.
+ * cptx_vqx_misc_ena_w1s_s
+ * Word0
+ * reserved_5_63:59 [63:5] Reserved.
+ * swerr:1 [4:4](R/W1S/H) Reads or sets enable for
+ * CPT(0..1)_VQ(0..63)_MISC_INT[SWERR].
+ * nwrp:1 [3:3](R/W1S/H) Reads or sets enable for
+ * CPT(0..1)_VQ(0..63)_MISC_INT[NWRP].
+ * irde:1 [2:2](R/W1S/H) Reads or sets enable for
+ * CPT(0..1)_VQ(0..63)_MISC_INT[IRDE].
+ * dovf:1 [1:1](R/W1S/H) Reads or sets enable for
+ * CPT(0..1)_VQ(0..63)_MISC_INT[DOVF].
+ * mbox:1 [0:0](R/W1S/H) Reads or sets enable for
+ * CPT(0..1)_VQ(0..63)_MISC_INT[MBOX].
+ *
+ */
+union cptx_vqx_misc_ena_w1s {
+ uint64_t u;
+ struct cptx_vqx_misc_ena_w1s_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_5_63:59;
+ uint64_t swerr:1;
+ uint64_t nwrp:1;
+ uint64_t irde:1;
+ uint64_t dovf:1;
+ uint64_t mbox:1;
+#else /* Word 0 - Little Endian */
+ uint64_t mbox:1;
+ uint64_t dovf:1;
+ uint64_t irde:1;
+ uint64_t nwrp:1;
+ uint64_t swerr:1;
+ uint64_t reserved_5_63:59;
+#endif /* Word 0 - End */
+ } s;
+ struct cptx_vqx_misc_ena_w1s_cn81xx {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_5_63:59;
+ uint64_t swerr:1;
+ uint64_t nwrp:1;
+ uint64_t irde:1;
+ uint64_t dovf:1;
+ uint64_t mbox:1;
+#else /* Word 0 - Little Endian */
+ uint64_t mbox:1;
+ uint64_t dovf:1;
+ uint64_t irde:1;
+ uint64_t nwrp:1;
+ uint64_t swerr:1;
+ uint64_t reserved_5_63:59;
+#endif /* Word 0 - End */
+ } cn81xx;
+};
+
+/**
+ * Register (NCB) cpt#_vq#_doorbell
+ *
+ * CPT Queue Doorbell Registers
+ * Doorbells for the CPT instruction queues.
+ * cptx_vqx_doorbell_s
+ * Word0
+ * reserved_20_63:44 [63:20] Reserved.
+ * dbell_cnt:20 [19:0](R/W/H) Number of instruction queue 64-bit words to add
+ * to the CPT instruction doorbell count. Readback value is the the
+ * current number of pending doorbell requests. If counter overflows
+ * CPT()_VQ()_MISC_INT[DBELL_DOVF] is set. To reset the count back to
+ * zero, write one to clear CPT()_VQ()_MISC_INT_ENA_W1C[DBELL_DOVF],
+ * then write a value of 2^20 minus the read [DBELL_CNT], then write one
+ * to CPT()_VQ()_MISC_INT_W1C[DBELL_DOVF] and
+ * CPT()_VQ()_MISC_INT_ENA_W1S[DBELL_DOVF]. Must be a multiple of 8.
+ * All CPT instructions are 8 words and require a doorbell count of
+ * multiple of 8.
+ */
+union cptx_vqx_doorbell {
+ uint64_t u;
+ struct cptx_vqx_doorbell_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_20_63:44;
+ uint64_t dbell_cnt:20;
+#else /* Word 0 - Little Endian */
+ uint64_t dbell_cnt:20;
+ uint64_t reserved_20_63:44;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_vq#_inprog
+ *
+ * CPT Queue In Progress Count Registers
+ * These registers contain the per-queue instruction in flight registers.
+ * cptx_vqx_inprog_s
+ * Word0
+ * reserved_8_63:56 [63:8] Reserved.
+ * inflight:8 [7:0](RO/H) Inflight count. Counts the number of instructions
+ * for the VF for which CPT is fetching, executing or responding to
+ * instructions. However this does not include any interrupts that are
+ * awaiting software handling (CPT()_VQ()_DONE[DONE] != 0x0).
+ * A queue may not be reconfigured until:
+ * 1. CPT()_VQ()_CTL[ENA] is cleared by software.
+ * 2. [INFLIGHT] is polled until equals to zero.
+ */
+union cptx_vqx_inprog {
+ uint64_t u;
+ struct cptx_vqx_inprog_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_8_63:56;
+ uint64_t inflight:8;
+#else /* Word 0 - Little Endian */
+ uint64_t inflight:8;
+ uint64_t reserved_8_63:56;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_vq#_misc_int
+ *
+ * CPT Queue Misc Interrupt Register
+ * These registers contain the per-queue miscellaneous interrupts.
+ * cptx_vqx_misc_int_s
+ * Word 0
+ * reserved_5_63:59 [63:5] Reserved.
+ * swerr:1 [4:4](R/W1C/H) Software error from engines.
+ * nwrp:1 [3:3](R/W1C/H) NCB result write response error.
+ * irde:1 [2:2](R/W1C/H) Instruction NCB read response error.
+ * dovf:1 [1:1](R/W1C/H) Doorbell overflow.
+ * mbox:1 [0:0](R/W1C/H) PF to VF mailbox interrupt. Set when
+ * CPT()_VF()_PF_MBOX(0) is written.
+ *
+ */
+union cptx_vqx_misc_int {
+ uint64_t u;
+ struct cptx_vqx_misc_int_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_5_63:59;
+ uint64_t swerr:1;
+ uint64_t nwrp:1;
+ uint64_t irde:1;
+ uint64_t dovf:1;
+ uint64_t mbox:1;
+#else /* Word 0 - Little Endian */
+ uint64_t mbox:1;
+ uint64_t dovf:1;
+ uint64_t irde:1;
+ uint64_t nwrp:1;
+ uint64_t swerr:1;
+ uint64_t reserved_5_63:59;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_vq#_done_ack
+ *
+ * CPT Queue Done Count Ack Registers
+ * This register is written by software to acknowledge interrupts.
+ * cptx_vqx_done_ack_s
+ * Word0
+ * reserved_20_63:44 [63:20] Reserved.
+ * done_ack:20 [19:0](R/W/H) Number of decrements to CPT()_VQ()_DONE[DONE].
+ * Reads CPT()_VQ()_DONE[DONE]. Written by software to acknowledge
+ * interrupts. If CPT()_VQ()_DONE[DONE] is still nonzero the interrupt
+ * will be re-sent if the conditions described in CPT()_VQ()_DONE[DONE]
+ * are satisfied.
+ *
+ */
+union cptx_vqx_done_ack {
+ uint64_t u;
+ struct cptx_vqx_done_ack_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_20_63:44;
+ uint64_t done_ack:20;
+#else /* Word 0 - Little Endian */
+ uint64_t done_ack:20;
+ uint64_t reserved_20_63:44;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_vq#_done
+ *
+ * CPT Queue Done Count Registers
+ * These registers contain the per-queue instruction done count.
+ * cptx_vqx_done_s
+ * Word0
+ * reserved_20_63:44 [63:20] Reserved.
+ * done:20 [19:0](R/W/H) Done count. When CPT_INST_S[DONEINT] set and that
+ * instruction completes, CPT()_VQ()_DONE[DONE] is incremented when the
+ * instruction finishes. Write to this field are for diagnostic use only;
+ * instead software writes CPT()_VQ()_DONE_ACK with the number of
+ * decrements for this field.
+ * Interrupts are sent as follows:
+ * * When CPT()_VQ()_DONE[DONE] = 0, then no results are pending, the
+ * interrupt coalescing timer is held to zero, and an interrupt is not
+ * sent.
+ * * When CPT()_VQ()_DONE[DONE] != 0, then the interrupt coalescing timer
+ * counts. If the counter is >= CPT()_VQ()_DONE_WAIT[TIME_WAIT]*1024, or
+ * CPT()_VQ()_DONE[DONE] >= CPT()_VQ()_DONE_WAIT[NUM_WAIT], i.e. enough
+ * time has passed or enough results have arrived, then the interrupt is
+ * sent.
+ * * When CPT()_VQ()_DONE_ACK is written (or CPT()_VQ()_DONE is written
+ * but this is not typical), the interrupt coalescing timer restarts.
+ * Note after decrementing this interrupt equation is recomputed,
+ * for example if CPT()_VQ()_DONE[DONE] >= CPT()_VQ()_DONE_WAIT[NUM_WAIT]
+ * and because the timer is zero, the interrupt will be resent immediately.
+ * (This covers the race case between software acknowledging an interrupt
+ * and a result returning.)
+ * * When CPT()_VQ()_DONE_ENA_W1S[DONE] = 0, interrupts are not sent,
+ * but the counting described above still occurs.
+ * Since CPT instructions complete out-of-order, if software is using
+ * completion interrupts the suggested scheme is to request a DONEINT on
+ * each request, and when an interrupt arrives perform a "greedy" scan for
+ * completions; even if a later command is acknowledged first this will
+ * not result in missing a completion.
+ * Software is responsible for making sure [DONE] does not overflow;
+ * for example by insuring there are not more than 2^20-1 instructions in
+ * flight that may request interrupts.
+ *
+ */
+union cptx_vqx_done {
+ uint64_t u;
+ struct cptx_vqx_done_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_20_63:44;
+ uint64_t done:20;
+#else /* Word 0 - Little Endian */
+ uint64_t done:20;
+ uint64_t reserved_20_63:44;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_vq#_done_wait
+ *
+ * CPT Queue Done Interrupt Coalescing Wait Registers
+ * Specifies the per queue interrupt coalescing settings.
+ * cptx_vqx_done_wait_s
+ * Word0
+ * reserved_48_63:16 [63:48] Reserved.
+ * time_wait:16; [47:32](R/W) Time hold-off. When CPT()_VQ()_DONE[DONE] = 0
+ * or CPT()_VQ()_DONE_ACK is written a timer is cleared. When the timer
+ * reaches [TIME_WAIT]*1024 then interrupt coalescing ends.
+ * see CPT()_VQ()_DONE[DONE]. If 0x0, time coalescing is disabled.
+ * reserved_20_31:12 [31:20] Reserved.
+ * num_wait:20 [19:0](R/W) Number of messages hold-off.
+ * When CPT()_VQ()_DONE[DONE] >= [NUM_WAIT] then interrupt coalescing ends
+ * see CPT()_VQ()_DONE[DONE]. If 0x0, same behavior as 0x1.
+ *
+ */
+union cptx_vqx_done_wait {
+ uint64_t u;
+ struct cptx_vqx_done_wait_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_48_63:16;
+ uint64_t time_wait:16;
+ uint64_t reserved_20_31:12;
+ uint64_t num_wait:20;
+#else /* Word 0 - Little Endian */
+ uint64_t num_wait:20;
+ uint64_t reserved_20_31:12;
+ uint64_t time_wait:16;
+ uint64_t reserved_48_63:16;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_vq#_done_ena_w1s
+ *
+ * CPT Queue Done Interrupt Enable Set Registers
+ * Write 1 to these registers will enable the DONEINT interrupt for the queue.
+ * cptx_vqx_done_ena_w1s_s
+ * Word0
+ * reserved_1_63:63 [63:1] Reserved.
+ * done:1 [0:0](R/W1S/H) Write 1 will enable DONEINT for this queue.
+ * Write 0 has no effect. Read will return the enable bit.
+ */
+union cptx_vqx_done_ena_w1s {
+ uint64_t u;
+ struct cptx_vqx_done_ena_w1s_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_1_63:63;
+ uint64_t done:1;
+#else /* Word 0 - Little Endian */
+ uint64_t done:1;
+ uint64_t reserved_1_63:63;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/**
+ * Register (NCB) cpt#_vq#_ctl
+ *
+ * CPT VF Queue Control Registers
+ * This register configures queues. This register should be changed (other than
+ * clearing [ENA]) only when quiescent (see CPT()_VQ()_INPROG[INFLIGHT]).
+ * cptx_vqx_ctl_s
+ * Word0
+ * reserved_1_63:63 [63:1] Reserved.
+ * ena:1 [0:0](R/W/H) Enables the logical instruction queue.
+ * See also CPT()_PF_Q()_CTL[CONT_ERR] and CPT()_VQ()_INPROG[INFLIGHT].
+ * 1 = Queue is enabled.
+ * 0 = Queue is disabled.
+ */
+union cptx_vqx_ctl {
+ uint64_t u;
+ struct cptx_vqx_ctl_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ uint64_t reserved_1_63:63;
+ uint64_t ena:1;
+#else /* Word 0 - Little Endian */
+ uint64_t ena:1;
+ uint64_t reserved_1_63:63;
+#endif /* Word 0 - End */
+ } s;
+};
+#endif /*__CPT_HW_TYPES_H*/
diff --git a/drivers/crypto/cavium/cpt/cpt_main.c b/drivers/crypto/cavium/cpt/cpt_main.c
new file mode 100644
index 0000000..f5a89f9
--- /dev/null
+++ b/drivers/crypto/cavium/cpt/cpt_main.c
@@ -0,0 +1,891 @@
+/*
+ * Copyright (C) 2016 Cavium, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ */
+
+#include <linux/version.h>
+#include <linux/aer.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/printk.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/firmware.h>
+#include <linux/pci.h>
+
+#include "cpt.h"
+
+#define DRV_NAME "thunder-cpt"
+#define DRV_VERSION "1.0"
+
+/* Global list for holding all cpt_device pointers */
+struct cpt_device_list cpt_dev_list;
+
+static uint32_t num_vfs = 1; /* Default 1 VF enabled */
+module_param(num_vfs, uint, 0);
+MODULE_PARM_DESC(num_vfs, "Number of VFs to enable(1-16)");
+
+static inline void cpt_init_device_list(struct cpt_device_list *cpt_list)
+{
+ cpt_list->nr_device = 0;
+ spin_lock_init(&cpt_list->lock);
+
+ memset(cpt_list->device_ptr, 0, (sizeof(void *) * MAX_CPT_DEVICES));
+}
+
+static inline int32_t cpt_get_device_number(struct cpt_device_list *cpt_list,
+ void *dev)
+{
+ struct cpt_device *cpt = (struct cpt_device *)dev;
+ int32_t i = 0;
+
+ spin_lock(&cpt_list->lock);
+
+ for (i = 0; i < MAX_CPT_DEVICES; i++) {
+ if (cpt_list->device_ptr[i] == cpt) {
+ spin_unlock(&cpt_list->lock);
+ return i;
+ }
+ }
+ spin_unlock(&cpt_list->lock);
+
+ return -1;
+}
+
+static inline int32_t cpt_add_device(struct cpt_device_list *cpt_list,
+ struct cpt_device *cpt)
+{
+ /* lock the global device list */
+ spin_lock(&cpt_list->lock);
+
+ if (cpt_list->nr_device > MAX_CPT_DEVICES) {
+ /* unlock the global device list */
+ spin_unlock(&cpt_list->lock);
+ return -ENOMEM;
+ }
+
+ cpt->idx = cpt_list->nr_device;
+
+ cpt_list->device_ptr[cpt_list->nr_device] = cpt;
+ cpt_list->nr_device++;
+
+ /* unlock the global device list */
+ spin_unlock(&cpt_list->lock);
+
+ return 0;
+}
+
+static inline void cpt_remove_device(struct cpt_device_list *cpt_list,
+ struct cpt_device *cpt)
+{
+ int32_t i = 0;
+
+ /* lock the global device list */
+ spin_lock(&cpt_list->lock);
+
+ while (i < MAX_CPT_DEVICES) {
+ if (cpt_list->device_ptr[i] == cpt) {
+ cpt_list->device_ptr[i] = NULL;
+ cpt_list->nr_device--;
+ break;
+ }
+ i++;
+ }
+
+ /* unlock the global device list */
+ spin_unlock(&cpt_list->lock);
+}
+
+struct cpt_device *cpt_get_device(struct cpt_device_list *cpt_list,
+ int32_t dev_no)
+{
+ if (dev_no >= cpt_list->nr_device)
+ return NULL;
+
+ return cpt_list->device_ptr[dev_no];
+}
+
+int32_t nr_cpt_devices(struct cpt_device_list *cpt_list)
+{
+ return cpt_list->nr_device;
+}
+
+static uint64_t get_mask_from_value(int32_t value)
+{
+ uint64_t mask = 0ULL;
+ int32_t i;
+
+ for (i = 0; i < value; i++)
+ mask |= ((uint64_t)1 << i);
+
+ return mask;
+}
+
+/*
+ * Disable cores specified by coremask
+ */
+static void cpt_disable_cores(struct cpt_device *cpt, uint64_t coremask,
+ uint8_t type, uint8_t grp)
+{
+ union cptx_pf_exe_ctl pf_exe_ctl;
+ uint32_t timeout = 0xFFFFFFFF;
+ uint64_t grpmask = 0;
+ struct device *dev = &cpt->pdev->dev;
+
+ if (type == AE_TYPES)
+ coremask = (coremask << cpt->max_se_cores);
+
+ /* Disengage the cores from groups */
+ grpmask = cpt_read_csr64(cpt->reg_base, CPTX_PF_GX_EN(0, grp));
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_GX_EN(0, grp),
+ (grpmask & ~coremask));
+ udelay(CSR_DELAY);
+ grp = cpt_read_csr64(cpt->reg_base, CPTX_PF_EXEC_BUSY(0));
+ while (grp & coremask) {
+ dev_err(dev, "Cores still busy %llx", coremask);
+ grp = cpt_read_csr64(cpt->reg_base,
+ CPTX_PF_EXEC_BUSY(0));
+ if (timeout--)
+ break;
+ }
+
+ /* Disable the cores */
+ pf_exe_ctl.u = cpt_read_csr64(cpt->reg_base, CPTX_PF_EXE_CTL(0));
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_EXE_CTL(0),
+ (pf_exe_ctl.u & ~coremask));
+ udelay(CSR_DELAY);
+}
+
+/*
+ * Enable cores specified by coremask
+ */
+static void cpt_enable_cores(struct cpt_device *cpt, uint64_t coremask,
+ uint8_t type)
+{
+ union cptx_pf_exe_ctl pf_exe_ctl;
+
+ if (type == AE_TYPES)
+ coremask = (coremask << cpt->max_se_cores);
+
+ pf_exe_ctl.u = cpt_read_csr64(cpt->reg_base, CPTX_PF_EXE_CTL(0));
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_EXE_CTL(0),
+ (pf_exe_ctl.u | coremask));
+ udelay(CSR_DELAY);
+}
+
+static void cpt_configure_group(struct cpt_device *cpt, uint8_t grp,
+ uint64_t coremask, uint8_t type)
+{
+ union cptx_pf_gx_en pf_gx_en = {0};
+
+ if (type == AE_TYPES)
+ coremask = (coremask << cpt->max_se_cores);
+
+ pf_gx_en.u = cpt_read_csr64(cpt->reg_base, CPTX_PF_GX_EN(0, grp));
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_GX_EN(0, grp),
+ (pf_gx_en.u | coremask));
+ udelay(CSR_DELAY);
+}
+
+static void cpt_disable_mbox_interrupts(struct cpt_device *cpt)
+{
+ /* Clear mbox(0) interupts for all vfs */
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_MBOX_ENA_W1CX(0, 0), ~0ull);
+}
+
+static void cpt_disable_ecc_interrupts(struct cpt_device *cpt)
+{
+ /* Clear ecc(0) interupts for all vfs */
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_ECC0_ENA_W1C(0), ~0ull);
+}
+
+static void cpt_disable_exec_interrupts(struct cpt_device *cpt)
+{
+ /* Clear exec interupts for all vfs */
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_EXEC_ENA_W1C(0), ~0ull);
+}
+
+static void cpt_disable_all_interrupts(struct cpt_device *cpt)
+{
+ cpt_disable_mbox_interrupts(cpt);
+ cpt_disable_ecc_interrupts(cpt);
+ cpt_disable_exec_interrupts(cpt);
+}
+
+static void cpt_enable_mbox_interrupts(struct cpt_device *cpt)
+{
+ /* Set mbox(0) interupts for all vfs */
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_MBOX_ENA_W1SX(0, 0), ~0ull);
+}
+
+static void cpt_enable_ecc_interrupts(struct cpt_device *cpt)
+{
+ /* Set ecc(0) interupts for all vfs */
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_ECC0_ENA_W1S(0), ~0ull);
+}
+
+static void cpt_enable_exec_interrupts(struct cpt_device *cpt)
+{
+ /* Set exec interupts for all vfs */
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_EXEC_ENA_W1S(0), ~0ull);
+}
+
+static void cpt_enable_all_interrupts(struct cpt_device *cpt)
+{
+ cpt_enable_mbox_interrupts(cpt);
+ cpt_enable_ecc_interrupts(cpt);
+ cpt_enable_exec_interrupts(cpt);
+}
+
+static int32_t cpt_load_microcode(struct cpt_device *cpt,
+ struct microcode *mcode)
+{
+ int32_t ret = 0, core = 0, shift = 0;
+ uint32_t total_cores = 0;
+ struct device *dev = &cpt->pdev->dev;
+
+ if (!mcode || !mcode->code) {
+ dev_err(dev, "Either the mcode is null or data is NULL\n");
+ return 1;
+ }
+
+ if (mcode->code_size == 0) {
+ dev_err(dev, "microcode size is 0\n");
+ return 1;
+ }
+
+ /* Assumes 0-9 are SE cores for UCODE_BASE registers and
+ * AE core bases follow
+ */
+ if (mcode->is_ae) {
+ core = CPT_MAX_SE_CORES; /* start couting from 10 */
+ total_cores = CPT_MAX_TOTAL_CORES; /* upto 15 */
+ } else {
+ core = 0; /* start couting from 0 */
+ total_cores = CPT_MAX_SE_CORES; /* upto 9 */
+ }
+
+ /* Point to microcode for each core of the group */
+ for (; core < total_cores ; core++, shift++) {
+ if (mcode->core_mask_low & (1 << shift)) {
+ cpt_write_csr64(cpt->reg_base,
+ CPTX_PF_ENGX_UCODE_BASE(0, core),
+ (uint64_t)mcode->phys_base);
+ }
+ }
+ return ret;
+}
+
+static int32_t do_cpt_init(struct cpt_device *cpt, struct microcode *mcode)
+{
+ int32_t ret = 0;
+ struct device *dev = &cpt->pdev->dev;
+
+ /* Make device not ready */
+ cpt->flags &= ~CPT_FLAG_DEVICE_READY;
+ /* Disable All PF interrupts */
+ cpt_disable_all_interrupts(cpt);
+ /* Calculate mcode group and coremasks */
+ if (mcode->is_ae) {
+ if (mcode->num_cores > cpt->avail_ae_cores) {
+ dev_err(dev, "Requested for more cores than available AE cores\n");
+ ret = -1;
+ goto cpt_init_fail;
+ }
+
+ if (cpt->next_group >= CPT_MAX_CORE_GROUPS) {
+ dev_err(dev, "Can't load, all eight microcode groups in use");
+ return -ENFILE;
+ }
+
+ mcode->group = cpt->next_group;
+ /* Convert requested cores to mask */
+ mcode->core_mask_low = get_mask_from_value(mcode->num_cores);
+ mcode->core_mask_low <<= (cpt->max_ae_cores -
+ cpt->avail_ae_cores);
+ /* Deduct the available ae cores */
+ cpt->avail_ae_cores -= mcode->num_cores;
+ cpt_disable_cores(cpt, mcode->core_mask_low, AE_TYPES,
+ mcode->group);
+ /* Load microcode for AE engines */
+ if (cpt_load_microcode(cpt, mcode)) {
+ dev_err(dev, "Microcode load Failed for %s\n",
+ mcode->version);
+ ret = -1;
+ goto cpt_init_fail;
+ }
+ cpt->next_group++;
+ /* Configure group mask for the mcode */
+ cpt_configure_group(cpt, mcode->group, mcode->core_mask_low,
+ AE_TYPES);
+ /* Enable AE cores for the group mask */
+ cpt_enable_cores(cpt, mcode->core_mask_low, AE_TYPES);
+ } else {
+ if (mcode->num_cores > cpt->avail_se_cores) {
+ dev_err(dev, "Requested for more cores than available SE cores\n");
+ ret = -1;
+ goto cpt_init_fail;
+ }
+ if (cpt->next_group >= CPT_MAX_CORE_GROUPS) {
+ dev_err(dev, "Can't load, all eight microcode groups in use");
+ return -ENFILE;
+ }
+
+ mcode->group = cpt->next_group;
+ /* Covert requested cores to mask */
+ mcode->core_mask_low = get_mask_from_value(mcode->num_cores);
+ mcode->core_mask_low <<= (cpt->max_se_cores -
+ cpt->avail_se_cores);
+ /* Deduct the available se cores */
+ cpt->avail_se_cores -= mcode->num_cores;
+ cpt_disable_cores(cpt, mcode->core_mask_low, SE_TYPES,
+ mcode->group);
+ /* Load microcode for SE engines */
+ if (cpt_load_microcode(cpt, mcode)) {
+ dev_err(dev, "Microcode load Failed for %s\n",
+ mcode->version);
+ ret = -1;
+ goto cpt_init_fail;
+ }
+ cpt->next_group++;
+ /* Configure group mask for the mcode */
+ cpt_configure_group(cpt, mcode->group, mcode->core_mask_low,
+ SE_TYPES);
+ /* Enable SE cores for the group mask */
+ cpt_enable_cores(cpt, mcode->core_mask_low, SE_TYPES);
+ }
+
+ /* Enabled PF mailbox interrupts */
+ cpt_enable_mbox_interrupts(cpt);
+ cpt->flags |= CPT_FLAG_DEVICE_READY;
+
+ return ret;
+
+cpt_init_fail:
+ /* Enabled PF mailbox interrupts */
+ cpt_enable_mbox_interrupts(cpt);
+ /* Reset coremask values */
+ /* TODO: Revisit this failure case for more loads case */
+ cpt->avail_ae_cores = cpt->max_ae_cores;
+ cpt->avail_se_cores = cpt->max_se_cores;
+
+ return ret;
+}
+
+struct ucode_header {
+ uint8_t version[32];
+ uint32_t code_length;
+ uint32_t data_length;
+ uint64_t sram_address;
+};
+
+static int32_t cpt_ucode_load_fw(struct cpt_device *cpt, const uint8_t *fw,
+ bool is_ae)
+{
+ const struct firmware *fw_entry;
+ struct device *dev = &cpt->pdev->dev;
+ struct ucode_header *ucode;
+ struct microcode *mcode;
+ int j, ret = 0;
+
+ ret = request_firmware(&fw_entry, fw, dev);
+ if (ret)
+ return ret;
+
+ mcode = &cpt->mcode[cpt->next_mc_idx];
+ ucode = (struct ucode_header *)fw_entry->data;
+ memcpy(mcode->version, (uint8_t *)fw_entry->data, 32);
+ mcode->code_size = ntohl(ucode->code_length) * 2;
+ mcode->is_ae = is_ae;
+ mcode->core_mask_low = 0ULL;
+ mcode->core_mask_hi = 0ULL;
+ mcode->num_cores = is_ae ? 6 : 10;
+
+ /* Allocate DMAable space */
+ mcode->code = dma_zalloc_coherent(&cpt->pdev->dev, mcode->code_size,
+ &mcode->dma, GFP_KERNEL);
+ if (!mcode->code) {
+ dev_err(dev, "Unable to allocate space for microcode");
+ return -ENOMEM;
+ }
+ /* Align memory address for 'align_bytes' */
+ /* Neglect Bits 6:0 and 49:63: Align for 128-bytes */
+ mcode->phys_base = ALIGN((uint64_t)mcode->dma, 128);
+ mcode->base = mcode->code + (mcode->phys_base - mcode->dma);
+ memcpy((void *)mcode->base, (void *)(fw_entry->data + 48),
+ mcode->code_size);
+
+ /* Byte swap 64-bit */
+ for (j = 0; j < (mcode->code_size / 8); j++)
+ byte_swap_64(&((uint64_t *)mcode->base)[j]);
+ /* MC needs 16-bit swap */
+ for (j = 0; j < (mcode->code_size / 2); j++)
+ byte_swap_16(&((uint16_t *)mcode->base)[j]);
+
+ dev_dbg(dev, "mcode->code_size = %u\n", mcode->code_size);
+ dev_dbg(dev, "mcode->is_ae = %u\n", mcode->is_ae);
+ dev_dbg(dev, "mcode->num_cores = %u\n", mcode->num_cores);
+ dev_dbg(dev, "mcode->code = %llx\n", (uint64_t)mcode->code);
+ dev_dbg(dev, "mcode->phys_base = %llx\n", mcode->phys_base);
+ dev_dbg(dev, "mcode->base = %llx\n", (uint64_t)mcode->base);
+ dev_dbg(dev, "mcode->is_mc_valid = %u\n", mcode->is_mc_valid);
+
+ ret = do_cpt_init(cpt, mcode);
+ if (ret) {
+ dev_err(dev, "do_cpt_init failed with ret: %d\n", ret);
+ return ret;
+ }
+
+ dev_dbg(dev, "Microcode Loaded\n");
+ mcode->is_mc_valid = 1;
+ cpt->next_mc_idx++;
+ dev_dbg(dev, "mcode->is_mc_valid = %u\n", mcode->is_mc_valid);
+ release_firmware(fw_entry);
+
+ return ret;
+}
+
+static int32_t cpt_ucode_load(struct cpt_device *cpt)
+{
+ int32_t ret = 0;
+ struct device *dev = &cpt->pdev->dev;
+
+ ret = cpt_ucode_load_fw(cpt, "cpt8x-mc-ae.out", true);
+ if (ret) {
+ dev_err(dev, "ae:cpt_ucode_load failed with ret: %d\n", ret);
+ return ret;
+ }
+ ret = cpt_ucode_load_fw(cpt, "cpt8x-mc-se.out", false);
+ if (ret) {
+ dev_err(dev, "se:cpt_ucode_load failed with ret: %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+
+uint16_t active_cpt_devmask(struct cpt_device_list *cpt_list)
+{
+ struct cpt_device *cpt;
+ uint16_t mask = 0;
+ int32_t i = 0;
+
+ while (i < MAX_CPT_DEVICES) {
+ cpt = cpt_list->device_ptr[i];
+ if (cpt && cpt_device_ready(cpt))
+ mask |= (1 << i);
+ i++;
+ }
+
+ return mask;
+}
+
+static int32_t cpt_enable_msix(struct cpt_device *cpt)
+{
+ int32_t i, ret;
+
+ cpt->num_vec = CPT_PF_MSIX_VECTORS;
+
+ for (i = 0; i < cpt->num_vec; i++)
+ cpt->msix_entries[i].entry = i;
+
+ ret = pci_enable_msix(cpt->pdev, cpt->msix_entries, cpt->num_vec);
+ if (ret) {
+ dev_err(&cpt->pdev->dev, "Request for #%d msix vectors failed\n",
+ cpt->num_vec);
+ return ret;
+ }
+
+ cpt->msix_enabled = 1;
+ return 0;
+}
+
+static irqreturn_t cpt_mbx0_intr_handler (int32_t irq, void *cpt_irq)
+{
+ struct cpt_device *cpt = (struct cpt_device *)cpt_irq;
+
+ cpt_mbox_intr_handler(cpt, 0);
+
+ return IRQ_HANDLED;
+}
+
+static void cpt_disable_msix(struct cpt_device *cpt)
+{
+ if (cpt->msix_enabled) {
+ pci_disable_msix(cpt->pdev);
+ cpt->msix_enabled = 0;
+ cpt->num_vec = 0;
+ }
+}
+
+static void cpt_free_all_interrupts(struct cpt_device *cpt)
+{
+ int32_t irq;
+
+ for (irq = 0; irq < cpt->num_vec; irq++) {
+ if (cpt->irq_allocated[irq])
+ free_irq(cpt->msix_entries[irq].vector, cpt);
+ cpt->irq_allocated[irq] = false;
+ }
+}
+
+static void cpt_reset(struct cpt_device *cpt)
+{
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_RESET(0), 1);
+}
+
+static void cpt_find_max_enabled_cores(struct cpt_device *cpt)
+{
+ union cptx_pf_constants pf_cnsts = {0};
+
+ pf_cnsts.u = cpt_read_csr64(cpt->reg_base, CPTX_PF_CONSTANTS(0));
+ cpt->max_se_cores = pf_cnsts.s.se;
+ cpt->max_ae_cores = pf_cnsts.s.ae;
+}
+
+static uint32_t cpt_check_bist_status(struct cpt_device *cpt)
+{
+ union cptx_pf_bist_status bist_sts = {0};
+
+ bist_sts.u = cpt_read_csr64(cpt->reg_base,
+ CPTX_PF_BIST_STATUS(0));
+
+ return bist_sts.u;
+}
+
+static uint64_t cpt_check_exe_bist_status(struct cpt_device *cpt)
+{
+ union cptx_pf_exe_bist_status bist_sts = {0};
+
+ bist_sts.u = cpt_read_csr64(cpt->reg_base,
+ CPTX_PF_EXE_BIST_STATUS(0));
+
+ return bist_sts.u;
+}
+
+static void cpt_disable_all_cores(struct cpt_device *cpt)
+{
+ uint32_t grp, timeout = 0xFFFFFFFF;
+ struct device *dev = &cpt->pdev->dev;
+
+ /* Disengage the cores from groups */
+ for (grp = 0; grp < CPT_MAX_CORE_GROUPS; grp++) {
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_GX_EN(0, grp), 0);
+ udelay(CSR_DELAY);
+ }
+
+ grp = cpt_read_csr64(cpt->reg_base, CPTX_PF_EXEC_BUSY(0));
+ while (grp) {
+ dev_err(dev, "Cores still busy");
+ grp = cpt_read_csr64(cpt->reg_base,
+ CPTX_PF_EXEC_BUSY(0));
+ if (timeout--)
+ break;
+ }
+ /* Disable the cores */
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_EXE_CTL(0), 0);
+}
+
+/**
+ * Ensure all cores are disenganed from all groups by
+ * calling cpt_disable_all_cores() before calling this
+ * function.
+ */
+static void cpt_unload_microcode(struct cpt_device *cpt)
+{
+ uint32_t grp = 0, core;
+
+ /* Free microcode bases and reset group masks */
+ for (grp = 0; grp < CPT_MAX_CORE_GROUPS; grp++) {
+ struct microcode *mcode = &cpt->mcode[grp];
+
+ if (cpt->mcode[grp].code)
+ dma_free_coherent(&cpt->pdev->dev, mcode->code_size,
+ mcode->code, mcode->dma);
+ mcode->code = NULL;
+ mcode->base = NULL;
+ }
+ /* Clear UCODE_BASE registers for all engines */
+ for (core = 0; core < CPT_MAX_TOTAL_CORES; core++)
+ cpt_write_csr64(cpt->reg_base,
+ CPTX_PF_ENGX_UCODE_BASE(0, core), 0ull);
+}
+
+static int32_t cpt_device_init(struct cpt_device *cpt)
+{
+ uint16_t device_id;
+ uint8_t rev_id;
+ uint64_t bist;
+ struct device *dev = &cpt->pdev->dev;
+
+ /* Reset the PF when probed first */
+ cpt_reset(cpt);
+ mdelay((100));
+
+ pci_read_config_word(cpt->pdev, PCI_DEVICE_ID, &device_id);
+ pci_read_config_byte(cpt->pdev, PCI_REVISION_ID, &rev_id);
+ cpt->chip_id = (device_id << 8) | rev_id;
+ dev_dbg(dev, "CPT Chip ID: 0x%0x ", cpt->chip_id);
+
+ /*Check BIST status*/
+ bist = (uint64_t)cpt_check_bist_status(cpt);
+ if (bist) {
+ dev_err(dev, "RAM BIST failed with code 0x%llx", bist);
+ return -ENODEV;
+ }
+
+ bist = cpt_check_exe_bist_status(cpt);
+ if (bist) {
+ dev_err(dev, "Engine BIST failed with code 0x%llx", bist);
+ return -ENODEV;
+ }
+
+ /*Get CLK frequency*/
+ /*Get max enabled cores */
+ cpt_find_max_enabled_cores(cpt);
+ /*Disable all cores*/
+ cpt_disable_all_cores(cpt);
+ /*Reset device parameters*/
+ cpt->next_mc_idx = 0;
+ cpt->next_group = 0;
+ cpt->avail_se_cores = cpt->max_se_cores;
+ cpt->avail_ae_cores = cpt->max_ae_cores;
+ /* PF is ready */
+ cpt->flags |= CPT_FLAG_DEVICE_READY;
+
+ return 0;
+}
+
+static int32_t cpt_register_interrupts(struct cpt_device *cpt)
+{
+ int32_t ret;
+ struct device *dev = &cpt->pdev->dev;
+
+ /* Enable MSI-X */
+ ret = cpt_enable_msix(cpt);
+ if (ret)
+ return ret;
+
+ /* Register mailbox interrupt handlers */
+ ret = request_irq(cpt->msix_entries[CPT_PF_INT_VEC_E_MBOXX(0)].vector,
+ cpt_mbx0_intr_handler, 0, "CPT Mbox0", cpt);
+ if (ret)
+ goto fail;
+
+ cpt->irq_allocated[CPT_PF_INT_VEC_E_MBOXX(0)] = true;
+
+ /* Enable mailbox interrupt */
+ cpt_enable_mbox_interrupts(cpt);
+ return 0;
+
+fail:
+ dev_err(dev, "Request irq failed\n");
+ cpt_free_all_interrupts(cpt);
+ return ret;
+}
+
+static void cpt_unregister_interrupts(struct cpt_device *cpt)
+{
+ cpt_free_all_interrupts(cpt);
+ cpt_disable_msix(cpt);
+}
+
+static int32_t cpt_sriov_init(struct cpt_device *cpt, int32_t num_vfs)
+{
+ int32_t pos = 0;
+ int32_t err;
+ uint16_t total_vf_cnt;
+ struct pci_dev *pdev = cpt->pdev;
+
+ pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
+ if (!pos) {
+ dev_err(&pdev->dev, "SRIOV capability is not found in PCIe config space\n");
+ return -ENODEV;
+ }
+
+ cpt->num_vf_en = num_vfs; /* User requested VFs */
+ pci_read_config_word(pdev, (pos + PCI_SRIOV_TOTAL_VF), &total_vf_cnt);
+ if (total_vf_cnt < cpt->num_vf_en)
+ cpt->num_vf_en = total_vf_cnt;
+
+ if (!total_vf_cnt)
+ return 0;
+
+ /*Enabled the available VFs */
+ err = pci_enable_sriov(pdev, cpt->num_vf_en);
+ if (err) {
+ dev_err(&pdev->dev, "SRIOV enable failed, num VF is %d\n",
+ cpt->num_vf_en);
+ cpt->num_vf_en = 0;
+ return err;
+ }
+
+ /* TODO: Optionally enable static VQ priorities feature */
+
+ dev_info(&pdev->dev, "SRIOV enabled, number of VF available %d\n",
+ cpt->num_vf_en);
+
+ cpt->flags |= CPT_FLAG_SRIOV_ENABLED;
+
+ return 0;
+}
+
+static int32_t cpt_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct device *dev = &pdev->dev;
+ struct cpt_device *cpt;
+ int32_t err;
+
+ cpt = devm_kzalloc(dev, sizeof(struct cpt_device), GFP_KERNEL);
+ if (!cpt)
+ return -ENOMEM;
+
+ pci_set_drvdata(pdev, cpt);
+ cpt->pdev = pdev;
+ err = pci_enable_device(pdev);
+ if (err) {
+ dev_err(dev, "Failed to enable PCI device\n");
+ pci_set_drvdata(pdev, NULL);
+ return err;
+ }
+
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err) {
+ dev_err(dev, "PCI request regions failed 0x%x\n", err);
+ goto cpt_err_disable_device;
+ }
+
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(48));
+ if (err) {
+ dev_err(dev, "Unable to get usable DMA configuration\n");
+ goto cpt_err_release_regions;
+ }
+
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(48));
+ if (err) {
+ dev_err(dev, "Unable to get 48-bit DMA for consistent allocations\n");
+ goto cpt_err_release_regions;
+ }
+
+ /* MAP PF's configuration registers */
+ cpt->reg_base = pcim_iomap(pdev, CPT_CSR_BAR, 0);
+ if (!cpt->reg_base) {
+ dev_err(dev, "Cannot map config register space, aborting\n");
+ err = -ENOMEM;
+ goto cpt_err_release_regions;
+ }
+
+ /* CPT device HW initialization */
+ cpt_device_init(cpt);
+
+ /* Register interrupts */
+ err = cpt_register_interrupts(cpt);
+ if (err)
+ goto cpt_err_release_regions;
+
+ err = cpt_ucode_load(cpt);
+ if (err)
+ goto cpt_err_unregister_interrupts;
+
+ /* Configure SRIOV */
+ err = cpt_sriov_init(cpt, num_vfs);
+ if (err)
+ goto cpt_err_unregister_interrupts;
+
+ /* Add device to global device list */
+ cpt_add_device(&cpt_dev_list, cpt);
+
+ return 0;
+
+cpt_err_unregister_interrupts:
+ cpt_unregister_interrupts(cpt);
+cpt_err_release_regions:
+ pci_release_regions(pdev);
+cpt_err_disable_device:
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ return err;
+}
+
+static void cpt_remove(struct pci_dev *pdev)
+{
+ struct cpt_device *cpt = pci_get_drvdata(pdev);
+
+ /* Disengage SE and AE cores from all groups*/
+ cpt_disable_all_cores(cpt);
+ /* Unload microcodes */
+ cpt_unload_microcode(cpt);
+ cpt_unregister_interrupts(cpt);
+ pci_disable_sriov(pdev);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+}
+
+static void cpt_shutdown(struct pci_dev *pdev)
+{
+ struct cpt_device *cpt = pci_get_drvdata(pdev);
+
+ if (!cpt)
+ return;
+
+ dev_info(&pdev->dev, "Shutdown device %x:%x.\n",
+ (uint32_t)pdev->vendor, (uint32_t)pdev->device);
+
+ cpt_unregister_interrupts(cpt);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ kzfree(cpt);
+}
+
+/* Supported devices */
+static const struct pci_device_id cpt_id_table[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, CPT_81XX_PCI_PF_DEVICE_ID) },
+ { 0, } /* end of table */
+};
+
+static struct pci_driver cpt_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = cpt_id_table,
+ .probe = cpt_probe,
+ .remove = cpt_remove,
+ .shutdown = cpt_shutdown,
+};
+
+static int32_t __init cpt_init_module(void)
+{
+ int32_t ret = -1;
+
+ pr_info("%s, ver %s\n", DRV_NAME, DRV_VERSION);
+
+ if (num_vfs > 16) {
+ pr_warn("Invalid vf count %d, Resetting it to 1(default)\n",
+ num_vfs);
+ num_vfs = 1;
+ }
+
+ cpt_init_device_list(&cpt_dev_list);
+ ret = pci_register_driver(&cpt_pci_driver);
+ if (ret)
+ pr_err("pci_register_driver() failed");
+
+ return ret;
+}
+
+static void __exit cpt_cleanup_module(void)
+{
+ pci_unregister_driver(&cpt_pci_driver);
+}
+
+module_init(cpt_init_module);
+module_exit(cpt_cleanup_module);
+
+MODULE_AUTHOR("George Cherian <george.cherian@xxxxxxxxxx>, Murthy Nidadavolu");
+MODULE_DESCRIPTION("Cavium Thunder CPT Physical Function Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION(DRV_VERSION);
+MODULE_DEVICE_TABLE(pci, cpt_id_table);
diff --git a/drivers/crypto/cavium/cpt/cpt_pf_mbox.c b/drivers/crypto/cavium/cpt/cpt_pf_mbox.c
new file mode 100644
index 0000000..7ed2d9c
--- /dev/null
+++ b/drivers/crypto/cavium/cpt/cpt_pf_mbox.c
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2016 Cavium, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+
+#include "cpt.h"
+
+static void cpt_send_msg_to_vf(struct cpt_device *cpt, int vf,
+ struct cpt_mbox *mbx)
+{
+ /* Writing mbox(0) causes interrupt */
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_VFX_MBOXX(0, vf, 1),
+ mbx->data);
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_VFX_MBOXX(0, vf, 0), mbx->msg);
+}
+
+/* ACKs VF's mailbox message
+ * @vf: VF to which ACK to be sent
+ */
+static void cpt_mbox_send_ack(struct cpt_device *cpt, int vf,
+ struct cpt_mbox *mbx)
+{
+ mbx->data = 0ull;
+ mbx->msg = CPT_MBOX_MSG_TYPE_ACK;
+ cpt_send_msg_to_vf(cpt, vf, mbx);
+}
+
+static void cpt_clear_mbox_intr(struct cpt_device *cpt, uint32_t vf)
+{
+ /* W1C for the VF */
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_MBOX_INTX(0, 0), (1 << vf));
+}
+
+/*
+ * Configure QLEN/Chunk sizes for VF
+ */
+static void cpt_cfg_qlen_for_vf(struct cpt_device *cpt, int vf, uint32_t size)
+{
+ union cptx_pf_qx_ctl pf_qx_ctl;
+
+ pf_qx_ctl.u = cpt_read_csr64(cpt->reg_base, CPTX_PF_QX_CTL(0, vf));
+ pf_qx_ctl.s.size = size;
+ pf_qx_ctl.s.cont_err = true;
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_QX_CTL(0, vf), pf_qx_ctl.u);
+}
+
+/*
+ * Configure VQ priority
+ */
+static void cpt_cfg_vq_priority(struct cpt_device *cpt, int vf, uint32_t pri)
+{
+ union cptx_pf_qx_ctl pf_qx_ctl;
+
+ pf_qx_ctl.u = cpt_read_csr64(cpt->reg_base, CPTX_PF_QX_CTL(0, vf));
+ pf_qx_ctl.s.pri = pri;
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_QX_CTL(0, vf), pf_qx_ctl.u);
+}
+
+static uint8_t cpt_bind_vq_to_grp(struct cpt_device *cpt, uint8_t q,
+ uint8_t grp)
+{
+ struct microcode *mcode = cpt->mcode;
+ union cptx_pf_qx_ctl pf_qx_ctl;
+ struct device *dev = &cpt->pdev->dev;
+
+ if (q >= CPT_MAX_VQ_NUM) {
+ dev_err(dev, "Queues are more than cores in the group");
+ return -EINVAL;
+ }
+ if (grp >= CPT_MAX_CORE_GROUPS) {
+ dev_err(dev, "Request group is more than possible groups");
+ return -EINVAL;
+ }
+ if (grp >= cpt->next_mc_idx) {
+ dev_err(dev, "Request group is higher than available functional groups");
+ return -EINVAL;
+ }
+ pf_qx_ctl.u = cpt_read_csr64(cpt->reg_base, CPTX_PF_QX_CTL(0, q));
+ pf_qx_ctl.s.grp = mcode[grp].group;
+ cpt_write_csr64(cpt->reg_base, CPTX_PF_QX_CTL(0, q), pf_qx_ctl.u);
+ dev_dbg(dev, "VF %d TYPE %s", q, (mcode[grp].is_ae ? "AE" : "SE"));
+
+ return mcode[grp].is_ae ? AE_TYPES : SE_TYPES;
+}
+
+/* Interrupt handler to handle mailbox messages from VFs */
+static void cpt_handle_mbox_intr(struct cpt_device *cpt, int vf)
+{
+ struct cpt_vf_info *vfx = &cpt->vfinfo[vf];
+ struct cpt_mbox mbx = {};
+ union cpt_chipid_vfid chipid_vfid;
+ uint8_t vftype;
+ struct device *dev = &cpt->pdev->dev;
+ /* Take mbox lock */
+ cpt->mbx_lock[vf] = true;
+ /*
+ * MBOX[0] contains msg
+ * MBOX[1] contains data
+ */
+ mbx.msg = cpt_read_csr64(cpt->reg_base, CPTX_PF_VFX_MBOXX(0, vf, 0));
+ mbx.data = cpt_read_csr64(cpt->reg_base, CPTX_PF_VFX_MBOXX(0, vf, 1));
+ dev_dbg(dev, "%s: Mailbox msg 0x%llx from VF%d", __func__, mbx.msg, vf);
+ switch (mbx.msg) {
+ case CPT_MSG_VF_UP:
+ vfx->state = VF_STATE_UP;
+ try_module_get(THIS_MODULE);
+ cpt_mbox_send_ack(cpt, vf, &mbx);
+ break;
+ case CPT_MSG_READY:
+ chipid_vfid.u16 = 0;
+ chipid_vfid.s.chip_id = cpt->chip_id;
+ chipid_vfid.s.vfid = vf;
+ mbx.msg = CPT_MSG_READY;
+ mbx.data = chipid_vfid.u16;
+ cpt_send_msg_to_vf(cpt, vf, &mbx);
+ break;
+ case CPT_MSG_VF_DOWN:
+ /* First msg in VF teardown sequence */
+ vfx->state = VF_STATE_DOWN;
+ module_put(THIS_MODULE);
+ cpt_mbox_send_ack(cpt, vf, &mbx);
+ break;
+ case CPT_MSG_QLEN:
+ vfx->qlen = mbx.data;
+ cpt_cfg_qlen_for_vf(cpt, vf, vfx->qlen);
+ cpt_mbox_send_ack(cpt, vf, &mbx);
+ break;
+ case CPT_MSG_QBIND_GRP:
+ vftype = cpt_bind_vq_to_grp(cpt, vf, (uint8_t)mbx.data);
+ if ((vftype != AE_TYPES) && (vftype != SE_TYPES))
+ dev_err(dev, "Queue %d binding to group %llu failed",
+ vf, mbx.data);
+ else {
+ dev_dbg(dev, "Queue %d binding to group %llu successful",
+ vf, mbx.data);
+ mbx.msg = CPT_MSG_QBIND_GRP;
+ mbx.data = vftype;
+ cpt_send_msg_to_vf(cpt, vf, &mbx);
+ }
+ break;
+ case CPT_MSG_VQ_PRIORITY:
+ vfx->priority = mbx.data;
+ cpt_cfg_vq_priority(cpt, vf, vfx->priority);
+ cpt_mbox_send_ack(cpt, vf, &mbx);
+ break;
+ default:
+ dev_err(&cpt->pdev->dev, "Invalid msg from VF%d, msg 0x%llx\n",
+ vf, mbx.msg);
+ break;
+ }
+ /* Unlock mailbox */
+ cpt->mbx_lock[vf] = false;
+}
+
+void cpt_mbox_intr_handler (struct cpt_device *cpt, int mbx)
+{
+ uint64_t intr;
+ uint8_t vf;
+
+ intr = cpt_read_csr64(cpt->reg_base, CPTX_PF_MBOX_INTX(0, 0));
+ dev_dbg(&cpt->pdev->dev, "PF interrupt Mbox%d 0x%llx\n", mbx, intr);
+ for (vf = 0; vf < CPT_MAX_VF_NUM; vf++) {
+ if (intr & (1ULL << vf)) {
+ dev_dbg(&cpt->pdev->dev, "Intr from VF %d\n", vf);
+ cpt_handle_mbox_intr(cpt, vf);
+ cpt_clear_mbox_intr(cpt, vf);
+ }
+ }
+}
--
2.1.4