drivers/net/ethernet/cavium/thunder/q_struct.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/cavium/thunder/q_struct.h

Extension

.h

Size

14036 bytes

Lines

697

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct cqe_rx_t
• struct cqe_rx_tcp_err_t
• struct cqe_rx_tcp_t
• struct cqe_send_t
• struct rbdr_entry_t
• struct rbe_tcp_cnxt_t
• struct rx_hdr_t
• struct sq_crc_subdesc
• struct sq_gather_subdesc
• struct sq_imm_subdesc
• struct sq_mem_subdesc
• struct sq_hdr_subdesc
• struct rq_cfg
• struct cq_cfg
• struct sq_cfg
• struct rbdr_cfg
• struct qs_cfg
• enum nic_send_ld_type_e
• enum ether_type_algorithm
• enum layer3_type
• enum layer4_type
• enum cpi_algorithm_type
• enum rss_algorithm_type
• enum rss_hash_cfg
• enum cqe_type
• enum cqe_rx_tcp_status
• enum cqe_send_status
• enum cqe_rx_tcp_end_reason
• enum cqe_rx_err_level
• enum cqe_rx_err_opcode
• enum send_l4_csum_type
• enum send_crc_alg
• enum send_load_type
• enum send_mem_alg_type
• enum send_mem_dsz_type
• enum sq_subdesc_type

Annotated Snippet

struct cqe_rx_t {
#if defined(__BIG_ENDIAN_BITFIELD)
	u64   cqe_type:4; /* W0 */
	u64   stdn_fault:1;
	u64   rsvd0:1;
	u64   rq_qs:7;
	u64   rq_idx:3;
	u64   rsvd1:12;
	u64   rss_alg:4;
	u64   rsvd2:4;
	u64   rb_cnt:4;
	u64   vlan_found:1;
	u64   vlan_stripped:1;
	u64   vlan2_found:1;
	u64   vlan2_stripped:1;
	u64   l4_type:4;
	u64   l3_type:4;
	u64   l2_present:1;
	u64   err_level:3;
	u64   err_opcode:8;

	u64   pkt_len:16; /* W1 */
	u64   l2_ptr:8;
	u64   l3_ptr:8;
	u64   l4_ptr:8;
	u64   cq_pkt_len:8;
	u64   align_pad:3;
	u64   rsvd3:1;
	u64   chan:12;

	u64   rss_tag:32; /* W2 */
	u64   vlan_tci:16;
	u64   vlan_ptr:8;
	u64   vlan2_ptr:8;

	u64   rb3_sz:16; /* W3 */
	u64   rb2_sz:16;
	u64   rb1_sz:16;
	u64   rb0_sz:16;

	u64   rb7_sz:16; /* W4 */
	u64   rb6_sz:16;
	u64   rb5_sz:16;
	u64   rb4_sz:16;

	u64   rb11_sz:16; /* W5 */
	u64   rb10_sz:16;
	u64   rb9_sz:16;
	u64   rb8_sz:16;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
	u64   err_opcode:8;
	u64   err_level:3;
	u64   l2_present:1;
	u64   l3_type:4;
	u64   l4_type:4;
	u64   vlan2_stripped:1;
	u64   vlan2_found:1;
	u64   vlan_stripped:1;
	u64   vlan_found:1;
	u64   rb_cnt:4;
	u64   rsvd2:4;
	u64   rss_alg:4;
	u64   rsvd1:12;
	u64   rq_idx:3;
	u64   rq_qs:7;
	u64   rsvd0:1;
	u64   stdn_fault:1;
	u64   cqe_type:4; /* W0 */
	u64   chan:12;
	u64   rsvd3:1;
	u64   align_pad:3;
	u64   cq_pkt_len:8;
	u64   l4_ptr:8;
	u64   l3_ptr:8;
	u64   l2_ptr:8;
	u64   pkt_len:16; /* W1 */
	u64   vlan2_ptr:8;
	u64   vlan_ptr:8;
	u64   vlan_tci:16;
	u64   rss_tag:32; /* W2 */
	u64   rb0_sz:16;
	u64   rb1_sz:16;
	u64   rb2_sz:16;
	u64   rb3_sz:16; /* W3 */
	u64   rb4_sz:16;
	u64   rb5_sz:16;
	u64   rb6_sz:16;
	u64   rb7_sz:16; /* W4 */
	u64   rb8_sz:16;
	u64   rb9_sz:16;

Annotation

• Detected declarations: `struct cqe_rx_t`, `struct cqe_rx_tcp_err_t`, `struct cqe_rx_tcp_t`, `struct cqe_send_t`, `struct rbdr_entry_t`, `struct rbe_tcp_cnxt_t`, `struct rx_hdr_t`, `struct sq_crc_subdesc`, `struct sq_gather_subdesc`, `struct sq_imm_subdesc`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: source implementation candidate.

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.