1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* Copyright 2014 Cisco Systems, Inc. All rights reserved. */ 3 4 #ifndef _VNIC_DEV_H_ 5 #define _VNIC_DEV_H_ 6 7 #include "vnic_resource.h" 8 #include "vnic_devcmd.h" 9 10 #ifndef VNIC_PADDR_TARGET 11 #define VNIC_PADDR_TARGET 0x0000000000000000ULL 12 #endif 13 14 #ifndef readq 15 static inline u64 readq(void __iomem *reg) 16 { 17 return ((u64)readl(reg + 0x4UL) << 32) | (u64)readl(reg); 18 } 19 20 static inline void writeq(u64 val, void __iomem *reg) 21 { 22 writel(lower_32_bits(val), reg); 23 writel(upper_32_bits(val), reg + 0x4UL); 24 } 25 #endif 26 27 enum vnic_dev_intr_mode { 28 VNIC_DEV_INTR_MODE_UNKNOWN, 29 VNIC_DEV_INTR_MODE_INTX, 30 VNIC_DEV_INTR_MODE_MSI, 31 VNIC_DEV_INTR_MODE_MSIX, 32 }; 33 34 struct vnic_dev_bar { 35 void __iomem *vaddr; 36 dma_addr_t bus_addr; 37 unsigned long len; 38 }; 39 40 struct vnic_dev_ring { 41 void *descs; 42 size_t size; 43 dma_addr_t base_addr; 44 size_t base_align; 45 void *descs_unaligned; 46 size_t size_unaligned; 47 dma_addr_t base_addr_unaligned; 48 unsigned int desc_size; 49 unsigned int desc_count; 50 unsigned int desc_avail; 51 }; 52 53 struct vnic_dev; 54 struct vnic_stats; 55 56 void *svnic_dev_priv(struct vnic_dev *vdev); 57 unsigned int svnic_dev_get_res_count(struct vnic_dev *vdev, 58 enum vnic_res_type type); 59 void __iomem *svnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type, 60 unsigned int index); 61 unsigned int svnic_dev_desc_ring_size(struct vnic_dev_ring *ring, 62 unsigned int desc_count, 63 unsigned int desc_size); 64 void svnic_dev_clear_desc_ring(struct vnic_dev_ring *ring); 65 int svnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring, 66 unsigned int desc_count, unsigned int desc_size); 67 void svnic_dev_free_desc_ring(struct vnic_dev *vdev, 68 struct vnic_dev_ring *ring); 69 int svnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, 70 u64 *a0, u64 *a1, int wait); 71 int svnic_dev_fw_info(struct vnic_dev *vdev, 72 struct vnic_devcmd_fw_info **fw_info); 73 int svnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, 74 unsigned int size, void *value); 75 int svnic_dev_stats_clear(struct vnic_dev *vdev); 76 int svnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats); 77 int svnic_dev_notify_set(struct vnic_dev *vdev, u16 intr); 78 void svnic_dev_notify_unset(struct vnic_dev *vdev); 79 int svnic_dev_link_status(struct vnic_dev *vdev); 80 u32 svnic_dev_link_down_cnt(struct vnic_dev *vdev); 81 int svnic_dev_close(struct vnic_dev *vdev); 82 int svnic_dev_enable_wait(struct vnic_dev *vdev); 83 int svnic_dev_disable(struct vnic_dev *vdev); 84 int svnic_dev_open(struct vnic_dev *vdev, int arg); 85 int svnic_dev_open_done(struct vnic_dev *vdev, int *done); 86 int svnic_dev_init(struct vnic_dev *vdev, int arg); 87 struct vnic_dev *svnic_dev_alloc_discover(struct vnic_dev *vdev, 88 void *priv, struct pci_dev *pdev, 89 struct vnic_dev_bar *bar, 90 unsigned int num_bars); 91 void svnic_dev_set_intr_mode(struct vnic_dev *vdev, 92 enum vnic_dev_intr_mode intr_mode); 93 enum vnic_dev_intr_mode svnic_dev_get_intr_mode(struct vnic_dev *vdev); 94 void svnic_dev_unregister(struct vnic_dev *vdev); 95 int svnic_dev_cmd_init(struct vnic_dev *vdev, int fallback); 96 #endif /* _VNIC_DEV_H_ */ 97