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/* SPDX-License-Identifier: GPL-2.0+ */
/* Copyright (c) 2018 Quantenna Communications, Inc. All rights reserved. */
#ifndef _QTN_FMAC_PCIE_H_
#define _QTN_FMAC_PCIE_H_
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/io.h>
#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include "shm_ipc.h"
#include "bus.h"
#define SKB_BUF_SIZE 2048
#define QTN_FW_DL_TIMEOUT_MS 3000
#define QTN_FW_QLINK_TIMEOUT_MS 30000
#define QTN_EP_RESET_WAIT_MS 1000
struct qtnf_pcie_bus_priv {
struct pci_dev *pdev;
int (*probe_cb)(struct qtnf_bus *bus, unsigned int tx_bd_size);
void (*remove_cb)(struct qtnf_bus *bus);
int (*suspend_cb)(struct qtnf_bus *bus);
int (*resume_cb)(struct qtnf_bus *bus);
u64 (*dma_mask_get_cb)(void);
spinlock_t tx_reclaim_lock;
spinlock_t tx_lock;
struct workqueue_struct *workqueue;
struct tasklet_struct reclaim_tq;
void __iomem *sysctl_bar;
void __iomem *epmem_bar;
void __iomem *dmareg_bar;
struct qtnf_shm_ipc shm_ipc_ep_in;
struct qtnf_shm_ipc shm_ipc_ep_out;
u16 tx_bd_num;
u16 rx_bd_num;
struct sk_buff **tx_skb;
struct sk_buff **rx_skb;
unsigned int fw_blksize;
u32 rx_bd_w_index;
u32 rx_bd_r_index;
u32 tx_bd_w_index;
u32 tx_bd_r_index;
/* diagnostics stats */
u32 pcie_irq_count;
u32 tx_full_count;
u32 tx_done_count;
u32 tx_reclaim_done;
u32 tx_reclaim_req;
u8 msi_enabled;
u8 tx_stopped;
bool flashboot;
};
int qtnf_pcie_control_tx(struct qtnf_bus *bus, struct sk_buff *skb);
int qtnf_pcie_alloc_skb_array(struct qtnf_pcie_bus_priv *priv);
int qtnf_pcie_fw_boot_done(struct qtnf_bus *bus);
void qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv,
struct qtnf_shm_ipc_region __iomem *ipc_tx_reg,
struct qtnf_shm_ipc_region __iomem *ipc_rx_reg,
const struct qtnf_shm_ipc_int *ipc_int);
struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev);
struct qtnf_bus *qtnf_pcie_topaz_alloc(struct pci_dev *pdev);
static inline void qtnf_non_posted_write(u32 val, void __iomem *basereg)
{
writel(val, basereg);
/* flush posted write */
readl(basereg);
}
#endif /* _QTN_FMAC_PCIE_H_ */
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