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/* SPDX-License-Identifier: GPL-2.0-only
* Copyright (C) 2020 Marvell.
*/
#ifndef __OTX2_CPT_COMMON_H
#define __OTX2_CPT_COMMON_H
#include <linux/pci.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/crypto.h>
#include "otx2_cpt_hw_types.h"
#include "rvu.h"
#include "mbox.h"
#define OTX2_CPT_MAX_VFS_NUM 128
#define OTX2_CPT_RVU_FUNC_ADDR_S(blk, slot, offs) \
(((blk) << 20) | ((slot) << 12) | (offs))
#define OTX2_CPT_RVU_PFFUNC(pf, func) \
((((pf) & RVU_PFVF_PF_MASK) << RVU_PFVF_PF_SHIFT) | \
(((func) & RVU_PFVF_FUNC_MASK) << RVU_PFVF_FUNC_SHIFT))
#define OTX2_CPT_INVALID_CRYPTO_ENG_GRP 0xFF
#define OTX2_CPT_NAME_LENGTH 64
#define OTX2_CPT_DMA_MINALIGN 128
/* HW capability flags */
#define CN10K_MBOX 0
#define CN10K_LMTST 1
#define BAD_OTX2_CPT_ENG_TYPE OTX2_CPT_MAX_ENG_TYPES
enum otx2_cpt_eng_type {
OTX2_CPT_AE_TYPES = 1,
OTX2_CPT_SE_TYPES = 2,
OTX2_CPT_IE_TYPES = 3,
OTX2_CPT_MAX_ENG_TYPES,
};
/* Take mbox id from end of CPT mbox range in AF (range 0xA00 - 0xBFF) */
#define MBOX_MSG_GET_ENG_GRP_NUM 0xBFF
#define MBOX_MSG_GET_CAPS 0xBFD
#define MBOX_MSG_GET_KVF_LIMITS 0xBFC
/*
* Message request and response to get engine group number
* which has attached a given type of engines (SE, AE, IE)
* This messages are only used between CPT PF <=> CPT VF
*/
struct otx2_cpt_egrp_num_msg {
struct mbox_msghdr hdr;
u8 eng_type;
};
struct otx2_cpt_egrp_num_rsp {
struct mbox_msghdr hdr;
u8 eng_type;
u8 eng_grp_num;
};
/*
* Message request and response to get kernel crypto limits
* This messages are only used between CPT PF <-> CPT VF
*/
struct otx2_cpt_kvf_limits_msg {
struct mbox_msghdr hdr;
};
struct otx2_cpt_kvf_limits_rsp {
struct mbox_msghdr hdr;
u8 kvf_limits;
};
/* CPT HW capabilities */
union otx2_cpt_eng_caps {
u64 u;
struct {
u64 reserved_0_4:5;
u64 mul:1;
u64 sha1_sha2:1;
u64 chacha20:1;
u64 zuc_snow3g:1;
u64 sha3:1;
u64 aes:1;
u64 kasumi:1;
u64 des:1;
u64 crc:1;
u64 reserved_14_63:50;
};
};
/*
* Message request and response to get HW capabilities for each
* engine type (SE, IE, AE).
* This messages are only used between CPT PF <=> CPT VF
*/
struct otx2_cpt_caps_msg {
struct mbox_msghdr hdr;
};
struct otx2_cpt_caps_rsp {
struct mbox_msghdr hdr;
u16 cpt_pf_drv_version;
u8 cpt_revision;
union otx2_cpt_eng_caps eng_caps[OTX2_CPT_MAX_ENG_TYPES];
};
static inline void otx2_cpt_write64(void __iomem *reg_base, u64 blk, u64 slot,
u64 offs, u64 val)
{
writeq_relaxed(val, reg_base +
OTX2_CPT_RVU_FUNC_ADDR_S(blk, slot, offs));
}
static inline u64 otx2_cpt_read64(void __iomem *reg_base, u64 blk, u64 slot,
u64 offs)
{
return readq_relaxed(reg_base +
OTX2_CPT_RVU_FUNC_ADDR_S(blk, slot, offs));
}
static inline bool is_dev_otx2(struct pci_dev *pdev)
{
if (pdev->device == OTX2_CPT_PCI_PF_DEVICE_ID ||
pdev->device == OTX2_CPT_PCI_VF_DEVICE_ID)
return true;
return false;
}
static inline void otx2_cpt_set_hw_caps(struct pci_dev *pdev,
unsigned long *cap_flag)
{
if (!is_dev_otx2(pdev)) {
__set_bit(CN10K_MBOX, cap_flag);
__set_bit(CN10K_LMTST, cap_flag);
}
}
int otx2_cpt_send_ready_msg(struct otx2_mbox *mbox, struct pci_dev *pdev);
int otx2_cpt_send_mbox_msg(struct otx2_mbox *mbox, struct pci_dev *pdev);
int otx2_cpt_send_af_reg_requests(struct otx2_mbox *mbox,
struct pci_dev *pdev);
int otx2_cpt_add_read_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 *val, int blkaddr);
int otx2_cpt_add_write_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 val, int blkaddr);
int otx2_cpt_read_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 *val, int blkaddr);
int otx2_cpt_write_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 val, int blkaddr);
struct otx2_cptlfs_info;
int otx2_cpt_attach_rscrs_msg(struct otx2_cptlfs_info *lfs);
int otx2_cpt_detach_rsrcs_msg(struct otx2_cptlfs_info *lfs);
int otx2_cpt_msix_offset_msg(struct otx2_cptlfs_info *lfs);
#endif /* __OTX2_CPT_COMMON_H */
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