drivers/net/ethernet/intel/fm10k/fm10k_common.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/intel/fm10k/fm10k_common.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/intel/fm10k/fm10k_common.h
Extension
.h
Size
1780 bytes
Lines
49
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _FM10K_COMMON_H_
#define _FM10K_COMMON_H_

#include "fm10k_type.h"

#define FM10K_REMOVED(hw_addr) unlikely(!(hw_addr))

/* PCI configuration read */
u16 fm10k_read_pci_cfg_word(struct fm10k_hw *hw, u32 reg);

/* read operations, indexed using DWORDS */
u32 fm10k_read_reg(struct fm10k_hw *hw, int reg);

/* write operations, indexed using DWORDS */
#define fm10k_write_reg(hw, reg, val) \
do { \
	u32 __iomem *hw_addr = READ_ONCE((hw)->hw_addr); \
	if (!FM10K_REMOVED(hw_addr)) \
		writel((val), &hw_addr[(reg)]); \
} while (0)

/* Switch register write operations, index using DWORDS */
#define fm10k_write_sw_reg(hw, reg, val) \
do { \
	u32 __iomem *sw_addr = READ_ONCE((hw)->sw_addr); \
	if (!FM10K_REMOVED(sw_addr)) \
		writel((val), &sw_addr[(reg)]); \
} while (0)

/* read ctrl register which has no clear on read fields as PCIe flush */
#define fm10k_write_flush(hw) fm10k_read_reg((hw), FM10K_CTRL)
s32 fm10k_get_bus_info_generic(struct fm10k_hw *hw);
s32 fm10k_get_invariants_generic(struct fm10k_hw *hw);
s32 fm10k_disable_queues_generic(struct fm10k_hw *hw, u16 q_cnt);
s32 fm10k_start_hw_generic(struct fm10k_hw *hw);
s32 fm10k_stop_hw_generic(struct fm10k_hw *hw);
u32 fm10k_read_hw_stats_32b(struct fm10k_hw *hw, u32 addr,
			    struct fm10k_hw_stat *stat);
#define fm10k_update_hw_base_32b(stat, delta) ((stat)->base_l += (delta))
void fm10k_update_hw_stats_q(struct fm10k_hw *hw, struct fm10k_hw_stats_q *q,
			     u32 idx, u32 count);
#define fm10k_unbind_hw_stats_32b(s) ((s)->base_h = 0)
void fm10k_unbind_hw_stats_q(struct fm10k_hw_stats_q *q, u32 count);
s32 fm10k_get_host_state_generic(struct fm10k_hw *hw, bool *host_ready);
#endif /* _FM10K_COMMON_H_ */

Annotation

Implementation Notes