drivers/net/ethernet/intel/igb/e1000_defines.h
Source file repositories/reference/linux-study-clean/drivers/net/ethernet/intel/igb/e1000_defines.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/net/ethernet/intel/igb/e1000_defines.h- Extension
.h- Size
- 48079 bytes
- Lines
- 1076
- 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.
- 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.
- Touches IRQ or DMA behavior; this matters for the representative real-device path.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#ifndef _E1000_DEFINES_H_
#define _E1000_DEFINES_H_
/* Number of Transmit and Receive Descriptors must be a multiple of 8 */
#define REQ_TX_DESCRIPTOR_MULTIPLE 8
#define REQ_RX_DESCRIPTOR_MULTIPLE 8
/* Definitions for power management and wakeup registers */
/* Wake Up Control */
#define E1000_WUC_PME_EN 0x00000002 /* PME Enable */
/* Wake Up Filter Control */
#define E1000_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */
#define E1000_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */
#define E1000_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */
#define E1000_WUFC_MC 0x00000008 /* Directed Multicast Wakeup Enable */
#define E1000_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */
/* Wake Up Status */
#define E1000_WUS_EX 0x00000004 /* Directed Exact */
#define E1000_WUS_ARPD 0x00000020 /* Directed ARP Request */
#define E1000_WUS_IPV4 0x00000040 /* Directed IPv4 */
#define E1000_WUS_IPV6 0x00000080 /* Directed IPv6 */
#define E1000_WUS_NSD 0x00000400 /* Directed IPv6 Neighbor Solicitation */
/* Packet types that are enabled for wake packet delivery */
#define WAKE_PKT_WUS ( \
E1000_WUS_EX | \
E1000_WUS_ARPD | \
E1000_WUS_IPV4 | \
E1000_WUS_IPV6 | \
E1000_WUS_NSD)
/* Wake Up Packet Length */
#define E1000_WUPL_MASK 0x00000FFF
/* Wake Up Packet Memory stores the first 128 bytes of the wake up packet */
#define E1000_WUPM_BYTES 128
/* Extended Device Control */
#define E1000_CTRL_EXT_SDP2_DATA 0x00000040 /* Value of SW Defineable Pin 2 */
#define E1000_CTRL_EXT_SDP3_DATA 0x00000080 /* Value of SW Defineable Pin 3 */
#define E1000_CTRL_EXT_SDP2_DIR 0x00000400 /* SDP2 Data direction */
#define E1000_CTRL_EXT_SDP3_DIR 0x00000800 /* SDP3 Data direction */
/* Physical Func Reset Done Indication */
#define E1000_CTRL_EXT_PFRSTD 0x00004000
#define E1000_CTRL_EXT_SDLPE 0X00040000 /* SerDes Low Power Enable */
#define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000
#define E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES 0x00C00000
#define E1000_CTRL_EXT_LINK_MODE_1000BASE_KX 0x00400000
#define E1000_CTRL_EXT_LINK_MODE_SGMII 0x00800000
#define E1000_CTRL_EXT_LINK_MODE_GMII 0x00000000
#define E1000_CTRL_EXT_EIAME 0x01000000
#define E1000_CTRL_EXT_IRCA 0x00000001
/* Interrupt delay cancellation */
/* Driver loaded bit for FW */
#define E1000_CTRL_EXT_DRV_LOAD 0x10000000
/* Interrupt acknowledge Auto-mask */
/* Clear Interrupt timers after IMS clear */
/* packet buffer parity error detection enabled */
/* descriptor FIFO parity error detection enable */
#define E1000_CTRL_EXT_PBA_CLR 0x80000000 /* PBA Clear */
#define E1000_CTRL_EXT_PHYPDEN 0x00100000
#define E1000_I2CCMD_REG_ADDR_SHIFT 16
#define E1000_I2CCMD_PHY_ADDR_SHIFT 24
#define E1000_I2CCMD_OPCODE_READ 0x08000000
#define E1000_I2CCMD_OPCODE_WRITE 0x00000000
#define E1000_I2CCMD_READY 0x20000000
#define E1000_I2CCMD_ERROR 0x80000000
#define E1000_I2CCMD_SFP_DATA_ADDR(a) (0x0000 + (a))
#define E1000_I2CCMD_SFP_DIAG_ADDR(a) (0x0100 + (a))
#define E1000_MAX_SGMII_PHY_REG_ADDR 255
#define E1000_I2CCMD_PHY_TIMEOUT 200
#define E1000_IVAR_VALID 0x80
#define E1000_GPIE_NSICR 0x00000001
#define E1000_GPIE_MSIX_MODE 0x00000010
#define E1000_GPIE_EIAME 0x40000000
#define E1000_GPIE_PBA 0x80000000
/* Receive Descriptor bit definitions */
#define E1000_RXD_STAT_DD 0x01 /* Descriptor Done */
#define E1000_RXD_STAT_EOP 0x02 /* End of Packet */
#define E1000_RXD_STAT_IXSM 0x04 /* Ignore checksum */
#define E1000_RXD_STAT_VP 0x08 /* IEEE VLAN Packet */
#define E1000_RXD_STAT_UDPCS 0x10 /* UDP xsum calculated */
#define E1000_RXD_STAT_TCPCS 0x20 /* TCP xsum calculated */
#define E1000_RXD_STAT_TS 0x10000 /* Pkt was time stamped */
#define E1000_RXDEXT_STATERR_LB 0x00040000
Annotation
- Atlas domain: Driver Families / drivers/net.
- Implementation status: source implementation candidate.
- IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.