1 /* 2 * Copyright 2014 Cisco Systems, Inc. All rights reserved. 3 * 4 * This program is free software; you may redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; version 2 of the License. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 9 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 10 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 11 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 12 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 13 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 14 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 15 * SOFTWARE. 16 */ 17 18 #ifndef _VNIC_DEV_H_ 19 #define _VNIC_DEV_H_ 20 21 #include "vnic_resource.h" 22 #include "vnic_devcmd.h" 23 24 #ifndef VNIC_PADDR_TARGET 25 #define VNIC_PADDR_TARGET 0x0000000000000000ULL 26 #endif 27 28 #ifndef readq 29 static inline u64 readq(void __iomem *reg) 30 { 31 return ((u64)readl(reg + 0x4UL) << 32) | (u64)readl(reg); 32 } 33 34 static inline void writeq(u64 val, void __iomem *reg) 35 { 36 writel(lower_32_bits(val), reg); 37 writel(upper_32_bits(val), reg + 0x4UL); 38 } 39 #endif 40 41 enum vnic_dev_intr_mode { 42 VNIC_DEV_INTR_MODE_UNKNOWN, 43 VNIC_DEV_INTR_MODE_INTX, 44 VNIC_DEV_INTR_MODE_MSI, 45 VNIC_DEV_INTR_MODE_MSIX, 46 }; 47 48 struct vnic_dev_bar { 49 void __iomem *vaddr; 50 dma_addr_t bus_addr; 51 unsigned long len; 52 }; 53 54 struct vnic_dev_ring { 55 void *descs; 56 size_t size; 57 dma_addr_t base_addr; 58 size_t base_align; 59 void *descs_unaligned; 60 size_t size_unaligned; 61 dma_addr_t base_addr_unaligned; 62 unsigned int desc_size; 63 unsigned int desc_count; 64 unsigned int desc_avail; 65 }; 66 67 struct vnic_dev; 68 struct vnic_stats; 69 70 void *svnic_dev_priv(struct vnic_dev *vdev); 71 unsigned int svnic_dev_get_res_count(struct vnic_dev *vdev, 72 enum vnic_res_type type); 73 void __iomem *svnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type, 74 unsigned int index); 75 unsigned int svnic_dev_desc_ring_size(struct vnic_dev_ring *ring, 76 unsigned int desc_count, 77 unsigned int desc_size); 78 void svnic_dev_clear_desc_ring(struct vnic_dev_ring *ring); 79 int svnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring, 80 unsigned int desc_count, unsigned int desc_size); 81 void svnic_dev_free_desc_ring(struct vnic_dev *vdev, 82 struct vnic_dev_ring *ring); 83 int svnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, 84 u64 *a0, u64 *a1, int wait); 85 int svnic_dev_fw_info(struct vnic_dev *vdev, 86 struct vnic_devcmd_fw_info **fw_info); 87 int svnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, 88 unsigned int size, void *value); 89 int svnic_dev_stats_clear(struct vnic_dev *vdev); 90 int svnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats); 91 int svnic_dev_notify_set(struct vnic_dev *vdev, u16 intr); 92 void svnic_dev_notify_unset(struct vnic_dev *vdev); 93 int svnic_dev_link_status(struct vnic_dev *vdev); 94 u32 svnic_dev_link_down_cnt(struct vnic_dev *vdev); 95 int svnic_dev_close(struct vnic_dev *vdev); 96 int svnic_dev_enable_wait(struct vnic_dev *vdev); 97 int svnic_dev_disable(struct vnic_dev *vdev); 98 int svnic_dev_open(struct vnic_dev *vdev, int arg); 99 int svnic_dev_open_done(struct vnic_dev *vdev, int *done); 100 int svnic_dev_init(struct vnic_dev *vdev, int arg); 101 struct vnic_dev *svnic_dev_alloc_discover(struct vnic_dev *vdev, 102 void *priv, struct pci_dev *pdev, 103 struct vnic_dev_bar *bar, 104 unsigned int num_bars); 105 void svnic_dev_set_intr_mode(struct vnic_dev *vdev, 106 enum vnic_dev_intr_mode intr_mode); 107 enum vnic_dev_intr_mode svnic_dev_get_intr_mode(struct vnic_dev *vdev); 108 void svnic_dev_unregister(struct vnic_dev *vdev); 109 int svnic_dev_cmd_init(struct vnic_dev *vdev, int fallback); 110 #endif /* _VNIC_DEV_H_ */ 111