mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-01 06:39:05 +00:00
17fcb3dc12
This is [1/3] part of hinic3 Ethernet driver initial submission. With this patch hinic3 is a valid kernel module but non-functional driver. The driver parts contained in this patch: Module initialization. PCI driver registration but with empty id_table. Auxiliary driver registration. Net device_ops registration but open/stop are empty stubs. tx/rx logic. All major data structures of the driver are fully introduced with the code that uses them but without their initialization code that requires management interface with the hw. Co-developed-by: Xin Guo <guoxin09@huawei.com> Signed-off-by: Xin Guo <guoxin09@huawei.com> Signed-off-by: Fan Gong <gongfan1@huawei.com> Co-developed-by: Gur Stavi <gur.stavi@huawei.com> Signed-off-by: Gur Stavi <gur.stavi@huawei.com> Link: https://patch.msgid.link/76a137ffdfe115c737c2c224f0c93b60ba53cc16.1747736586.git.gur.stavi@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
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#ifndef _HINIC3_HWIF_H_
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#define _HINIC3_HWIF_H_
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#include <linux/build_bug.h>
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#include <linux/spinlock_types.h>
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struct hinic3_hwdev;
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enum hinic3_func_type {
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HINIC3_FUNC_TYPE_VF = 1,
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};
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struct hinic3_db_area {
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unsigned long *db_bitmap_array;
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u32 db_max_areas;
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/* protect doorbell area alloc and free */
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spinlock_t idx_lock;
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};
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struct hinic3_func_attr {
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enum hinic3_func_type func_type;
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u16 func_global_idx;
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u16 global_vf_id_of_pf;
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u16 num_irqs;
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u16 num_sq;
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u8 port_to_port_idx;
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u8 pci_intf_idx;
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u8 ppf_idx;
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u8 num_aeqs;
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u8 num_ceqs;
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u8 msix_flex_en;
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};
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static_assert(sizeof(struct hinic3_func_attr) == 20);
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struct hinic3_hwif {
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u8 __iomem *cfg_regs_base;
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u64 db_base_phy;
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u64 db_dwqe_len;
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u8 __iomem *db_base;
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struct hinic3_db_area db_area;
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struct hinic3_func_attr attr;
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};
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enum hinic3_msix_state {
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HINIC3_MSIX_ENABLE,
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HINIC3_MSIX_DISABLE,
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};
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void hinic3_set_msix_state(struct hinic3_hwdev *hwdev, u16 msix_idx,
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enum hinic3_msix_state flag);
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u16 hinic3_global_func_id(struct hinic3_hwdev *hwdev);
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#endif
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