diff options
Diffstat (limited to 'drivers/scsi/snic/vnic_dev.h')
| -rw-r--r-- | drivers/scsi/snic/vnic_dev.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/scsi/snic/vnic_dev.h b/drivers/scsi/snic/vnic_dev.h new file mode 100644 index 000000000000..e65726da6504 --- /dev/null +++ b/drivers/scsi/snic/vnic_dev.h @@ -0,0 +1,110 @@ +/* + * Copyright 2014 Cisco Systems, Inc. All rights reserved. + * + * This program is free software; you may redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _VNIC_DEV_H_ +#define _VNIC_DEV_H_ + +#include "vnic_resource.h" +#include "vnic_devcmd.h" + +#ifndef VNIC_PADDR_TARGET +#define VNIC_PADDR_TARGET 0x0000000000000000ULL +#endif + +#ifndef readq +static inline u64 readq(void __iomem *reg) +{ + return ((u64)readl(reg + 0x4UL) << 32) | (u64)readl(reg); +} + +static inline void writeq(u64 val, void __iomem *reg) +{ + writel(lower_32_bits(val), reg); + writel(upper_32_bits(val), reg + 0x4UL); +} +#endif + +enum vnic_dev_intr_mode { + VNIC_DEV_INTR_MODE_UNKNOWN, + VNIC_DEV_INTR_MODE_INTX, + VNIC_DEV_INTR_MODE_MSI, + VNIC_DEV_INTR_MODE_MSIX, +}; + +struct vnic_dev_bar { + void __iomem *vaddr; + dma_addr_t bus_addr; + unsigned long len; +}; + +struct vnic_dev_ring { + void *descs; + size_t size; + dma_addr_t base_addr; + size_t base_align; + void *descs_unaligned; + size_t size_unaligned; + dma_addr_t base_addr_unaligned; + unsigned int desc_size; + unsigned int desc_count; + unsigned int desc_avail; +}; + +struct vnic_dev; +struct vnic_stats; + +void *svnic_dev_priv(struct vnic_dev *vdev); +unsigned int svnic_dev_get_res_count(struct vnic_dev *vdev, + enum vnic_res_type type); +void __iomem *svnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type, + unsigned int index); +unsigned int svnic_dev_desc_ring_size(struct vnic_dev_ring *ring, + unsigned int desc_count, + unsigned int desc_size); +void svnic_dev_clear_desc_ring(struct vnic_dev_ring *ring); +int svnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring, + unsigned int desc_count, unsigned int desc_size); +void svnic_dev_free_desc_ring(struct vnic_dev *vdev, + struct vnic_dev_ring *ring); +int svnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, + u64 *a0, u64 *a1, int wait); +int svnic_dev_fw_info(struct vnic_dev *vdev, + struct vnic_devcmd_fw_info **fw_info); +int svnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, + unsigned int size, void *value); +int svnic_dev_stats_clear(struct vnic_dev *vdev); +int svnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats); +int svnic_dev_notify_set(struct vnic_dev *vdev, u16 intr); +void svnic_dev_notify_unset(struct vnic_dev *vdev); +int svnic_dev_link_status(struct vnic_dev *vdev); +u32 svnic_dev_link_down_cnt(struct vnic_dev *vdev); +int svnic_dev_close(struct vnic_dev *vdev); +int svnic_dev_enable_wait(struct vnic_dev *vdev); +int svnic_dev_disable(struct vnic_dev *vdev); +int svnic_dev_open(struct vnic_dev *vdev, int arg); +int svnic_dev_open_done(struct vnic_dev *vdev, int *done); +int svnic_dev_init(struct vnic_dev *vdev, int arg); +struct vnic_dev *svnic_dev_alloc_discover(struct vnic_dev *vdev, + void *priv, struct pci_dev *pdev, + struct vnic_dev_bar *bar, + unsigned int num_bars); +void svnic_dev_set_intr_mode(struct vnic_dev *vdev, + enum vnic_dev_intr_mode intr_mode); +enum vnic_dev_intr_mode svnic_dev_get_intr_mode(struct vnic_dev *vdev); +void svnic_dev_unregister(struct vnic_dev *vdev); +int svnic_dev_cmd_init(struct vnic_dev *vdev, int fallback); +#endif /* _VNIC_DEV_H_ */ |