drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h

   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
  23 struct qtnf_pcie_bus_priv {
  24         struct pci_dev *pdev;
  25
  26         int (*probe_cb)(struct qtnf_bus *bus, unsigned int tx_bd_size,
  27                         unsigned int rx_bd_size);
  28         void (*remove_cb)(struct qtnf_bus *bus);
  29         int (*suspend_cb)(struct qtnf_bus *bus);
  30         int (*resume_cb)(struct qtnf_bus *bus);
  31         u64 (*dma_mask_get_cb)(void);
  32
  33         spinlock_t tx_reclaim_lock;
  34         spinlock_t tx_lock;
  35
  36         struct workqueue_struct *workqueue;
  37         struct tasklet_struct reclaim_tq;
  38
  39         void __iomem *sysctl_bar;
  40         void __iomem *epmem_bar;
  41         void __iomem *dmareg_bar;
  42
  43         struct qtnf_shm_ipc shm_ipc_ep_in;
  44         struct qtnf_shm_ipc shm_ipc_ep_out;
  45
  46         u16 tx_bd_num;
  47         u16 rx_bd_num;
  48
  49         struct sk_buff **tx_skb;
  50         struct sk_buff **rx_skb;
  51
  52         unsigned int fw_blksize;
  53
  54         u32 rx_bd_w_index;
  55         u32 rx_bd_r_index;
  56
  57         u32 tx_bd_w_index;
  58         u32 tx_bd_r_index;
  59
  60         /* diagnostics stats */
  61         u32 pcie_irq_count;
  62         u32 tx_full_count;
  63         u32 tx_done_count;
  64         u32 tx_reclaim_done;
  65         u32 tx_reclaim_req;
  66
  67         u8 msi_enabled;
  68         u8 tx_stopped;
  69         bool flashboot;
  70 };
  71
  72 int qtnf_pcie_control_tx(struct qtnf_bus *bus, struct sk_buff *skb);
  73 int qtnf_pcie_alloc_skb_array(struct qtnf_pcie_bus_priv *priv);
  74 int qtnf_pcie_fw_boot_done(struct qtnf_bus *bus);
  75 void 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);
  79 struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev);
  80 struct qtnf_bus *qtnf_pcie_topaz_alloc(struct pci_dev *pdev);
  81
  82 static 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_ */