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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) Meta Platforms, Inc. and affiliates. */
#ifndef _FBNIC_H_
#define _FBNIC_H_
#include <linux/io.h>
#include "fbnic_csr.h"
#include "fbnic_fw.h"
#include "fbnic_mac.h"
struct fbnic_dev {
struct device *dev;
u32 __iomem *uc_addr0;
u32 __iomem *uc_addr4;
const struct fbnic_mac *mac;
unsigned int fw_msix_vector;
unsigned short num_irqs;
struct fbnic_fw_mbx mbx[FBNIC_IPC_MBX_INDICES];
/* Lock protecting Tx Mailbox queue to prevent possible races */
spinlock_t fw_tx_lock;
u64 dsn;
u32 mps;
u32 readrq;
};
/* Reserve entry 0 in the MSI-X "others" array until we have filled all
* 32 of the possible interrupt slots. By doing this we can avoid any
* potential conflicts should we need to enable one of the debug interrupt
* causes later.
*/
enum {
FBNIC_FW_MSIX_ENTRY,
FBNIC_NON_NAPI_VECTORS
};
static inline bool fbnic_present(struct fbnic_dev *fbd)
{
return !!READ_ONCE(fbd->uc_addr0);
}
static inline void fbnic_wr32(struct fbnic_dev *fbd, u32 reg, u32 val)
{
u32 __iomem *csr = READ_ONCE(fbd->uc_addr0);
if (csr)
writel(val, csr + reg);
}
u32 fbnic_rd32(struct fbnic_dev *fbd, u32 reg);
static inline void fbnic_wrfl(struct fbnic_dev *fbd)
{
fbnic_rd32(fbd, FBNIC_MASTER_SPARE_0);
}
static inline void
fbnic_rmw32(struct fbnic_dev *fbd, u32 reg, u32 mask, u32 val)
{
u32 v;
v = fbnic_rd32(fbd, reg);
v &= ~mask;
v |= val;
fbnic_wr32(fbd, reg, v);
}
#define wr32(_f, _r, _v) fbnic_wr32(_f, _r, _v)
#define rd32(_f, _r) fbnic_rd32(_f, _r)
#define wrfl(_f) fbnic_wrfl(_f)
bool fbnic_fw_present(struct fbnic_dev *fbd);
u32 fbnic_fw_rd32(struct fbnic_dev *fbd, u32 reg);
void fbnic_fw_wr32(struct fbnic_dev *fbd, u32 reg, u32 val);
#define fw_rd32(_f, _r) fbnic_fw_rd32(_f, _r)
#define fw_wr32(_f, _r, _v) fbnic_fw_wr32(_f, _r, _v)
#define fw_wrfl(_f) fbnic_fw_rd32(_f, FBNIC_FW_ZERO_REG)
extern char fbnic_driver_name[];
void fbnic_devlink_free(struct fbnic_dev *fbd);
struct fbnic_dev *fbnic_devlink_alloc(struct pci_dev *pdev);
void fbnic_devlink_register(struct fbnic_dev *fbd);
void fbnic_devlink_unregister(struct fbnic_dev *fbd);
int fbnic_fw_enable_mbx(struct fbnic_dev *fbd);
void fbnic_fw_disable_mbx(struct fbnic_dev *fbd);
void fbnic_free_irqs(struct fbnic_dev *fbd);
int fbnic_alloc_irqs(struct fbnic_dev *fbd);
enum fbnic_boards {
fbnic_board_asic
};
struct fbnic_info {
unsigned int bar_mask;
};
#endif /* _FBNIC_H_ */
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