LXR linux/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/* Copyright (c) 2018 Quantenna Communications, Inc. All rights reserved. */
   3
   4#ifndef _QTN_FMAC_PCIE_H_
   5#define _QTN_FMAC_PCIE_H_
   6
   7#include <linux/pci.h>
   8#include <linux/spinlock.h>
   9#include <linux/io.h>
  10#include <linux/skbuff.h>
  11#include <linux/workqueue.h>
  12#include <linux/interrupt.h>
  13
  14#include "shm_ipc.h"
  15#include "bus.h"
  16
  17#define SKB_BUF_SIZE            2048
  18
  19#define QTN_FW_DL_TIMEOUT_MS    3000
  20#define QTN_FW_QLINK_TIMEOUT_MS 30000
  21#define QTN_EP_RESET_WAIT_MS    1000
  22
  23struct qtnf_pcie_bus_priv {
  24        struct pci_dev *pdev;
  25
  26        int (*probe_cb)(struct qtnf_bus *bus, unsigned int tx_bd_size);
  27        void (*remove_cb)(struct qtnf_bus *bus);
  28        int (*suspend_cb)(struct qtnf_bus *bus);
  29        int (*resume_cb)(struct qtnf_bus *bus);
  30        u64 (*dma_mask_get_cb)(void);
  31
  32        spinlock_t tx_reclaim_lock;
  33        spinlock_t tx_lock;
  34
  35        struct workqueue_struct *workqueue;
  36        struct tasklet_struct reclaim_tq;
  37
  38        void __iomem *sysctl_bar;
  39        void __iomem *epmem_bar;
  40        void __iomem *dmareg_bar;
  41
  42        struct qtnf_shm_ipc shm_ipc_ep_in;
  43        struct qtnf_shm_ipc shm_ipc_ep_out;
  44
  45        u16 tx_bd_num;
  46        u16 rx_bd_num;
  47
  48        struct sk_buff **tx_skb;
  49        struct sk_buff **rx_skb;
  50
  51        unsigned int fw_blksize;
  52
  53        u32 rx_bd_w_index;
  54        u32 rx_bd_r_index;
  55
  56        u32 tx_bd_w_index;
  57        u32 tx_bd_r_index;
  58
  59        /* diagnostics stats */
  60        u32 pcie_irq_count;
  61        u32 tx_full_count;
  62        u32 tx_done_count;
  63        u32 tx_reclaim_done;
  64        u32 tx_reclaim_req;
  65        u32 tx_eapol;
  66
  67        u8 msi_enabled;
  68        u8 tx_stopped;
  69        bool flashboot;
  70};
  71
  72int qtnf_pcie_control_tx(struct qtnf_bus *bus, struct sk_buff *skb);
  73int qtnf_pcie_alloc_skb_array(struct qtnf_pcie_bus_priv *priv);
  74int qtnf_pcie_fw_boot_done(struct qtnf_bus *bus);
  75void qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv,
  76                            struct qtnf_shm_ipc_region __iomem *ipc_tx_reg,
  77                            struct qtnf_shm_ipc_region __iomem *ipc_rx_reg,
  78                            const struct qtnf_shm_ipc_int *ipc_int);
  79struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev);
  80struct qtnf_bus *qtnf_pcie_topaz_alloc(struct pci_dev *pdev);
  81
  82static inline void qtnf_non_posted_write(u32 val, void __iomem *basereg)
  83{
  84        writel(val, basereg);
  85
  86        /* flush posted write */
  87        readl(basereg);
  88}
  89
  90#endif /* _QTN_FMAC_PCIE_H_ */
  91