drivers/vdpa/pds/debugfs.c

File Facts

System

Linux kernel

Corpus path

drivers/vdpa/pds/debugfs.c

Extension

.c

Size

8671 bytes

Lines

287

Domain

Driver Families

Bucket

drivers/vdpa

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

• linux/pci.h
• linux/vdpa.h
• linux/pds/pds_common.h
• linux/pds/pds_core_if.h
• linux/pds/pds_adminq.h
• linux/pds/pds_auxbus.h
• aux_drv.h
• vdpa_dev.h
• debugfs.h

Detected Declarations

• function pds_vdpa_debugfs_create
• function pds_vdpa_debugfs_destroy
• function print_status_bits
• function print_feature_bits_all
• function pds_vdpa_debugfs_add_pcidev
• function identity_show
• function pds_vdpa_debugfs_add_ident
• function config_show
• function vq_show
• function pds_vdpa_debugfs_add_vdpadev
• function pds_vdpa_debugfs_del_vdpadev
• function pds_vdpa_debugfs_reset_vdpadev

Annotated Snippet

switch (features & mask) {
		case BIT_ULL(VIRTIO_NET_F_CSUM):
			seq_puts(seq, " VIRTIO_NET_F_CSUM");
			break;
		case BIT_ULL(VIRTIO_NET_F_GUEST_CSUM):
			seq_puts(seq, " VIRTIO_NET_F_GUEST_CSUM");
			break;
		case BIT_ULL(VIRTIO_NET_F_CTRL_GUEST_OFFLOADS):
			seq_puts(seq, " VIRTIO_NET_F_CTRL_GUEST_OFFLOADS");
			break;
		case BIT_ULL(VIRTIO_NET_F_MTU):
			seq_puts(seq, " VIRTIO_NET_F_MTU");
			break;
		case BIT_ULL(VIRTIO_NET_F_MAC):
			seq_puts(seq, " VIRTIO_NET_F_MAC");
			break;
		case BIT_ULL(VIRTIO_NET_F_GUEST_TSO4):
			seq_puts(seq, " VIRTIO_NET_F_GUEST_TSO4");
			break;
		case BIT_ULL(VIRTIO_NET_F_GUEST_TSO6):
			seq_puts(seq, " VIRTIO_NET_F_GUEST_TSO6");
			break;
		case BIT_ULL(VIRTIO_NET_F_GUEST_ECN):
			seq_puts(seq, " VIRTIO_NET_F_GUEST_ECN");
			break;
		case BIT_ULL(VIRTIO_NET_F_GUEST_UFO):
			seq_puts(seq, " VIRTIO_NET_F_GUEST_UFO");
			break;
		case BIT_ULL(VIRTIO_NET_F_HOST_TSO4):
			seq_puts(seq, " VIRTIO_NET_F_HOST_TSO4");
			break;
		case BIT_ULL(VIRTIO_NET_F_HOST_TSO6):
			seq_puts(seq, " VIRTIO_NET_F_HOST_TSO6");
			break;
		case BIT_ULL(VIRTIO_NET_F_HOST_ECN):
			seq_puts(seq, " VIRTIO_NET_F_HOST_ECN");
			break;
		case BIT_ULL(VIRTIO_NET_F_HOST_UFO):
			seq_puts(seq, " VIRTIO_NET_F_HOST_UFO");
			break;
		case BIT_ULL(VIRTIO_NET_F_MRG_RXBUF):
			seq_puts(seq, " VIRTIO_NET_F_MRG_RXBUF");
			break;
		case BIT_ULL(VIRTIO_NET_F_STATUS):
			seq_puts(seq, " VIRTIO_NET_F_STATUS");
			break;
		case BIT_ULL(VIRTIO_NET_F_CTRL_VQ):
			seq_puts(seq, " VIRTIO_NET_F_CTRL_VQ");
			break;
		case BIT_ULL(VIRTIO_NET_F_CTRL_RX):
			seq_puts(seq, " VIRTIO_NET_F_CTRL_RX");
			break;
		case BIT_ULL(VIRTIO_NET_F_CTRL_VLAN):
			seq_puts(seq, " VIRTIO_NET_F_CTRL_VLAN");
			break;
		case BIT_ULL(VIRTIO_NET_F_CTRL_RX_EXTRA):
			seq_puts(seq, " VIRTIO_NET_F_CTRL_RX_EXTRA");
			break;
		case BIT_ULL(VIRTIO_NET_F_GUEST_ANNOUNCE):
			seq_puts(seq, " VIRTIO_NET_F_GUEST_ANNOUNCE");
			break;
		case BIT_ULL(VIRTIO_NET_F_MQ):
			seq_puts(seq, " VIRTIO_NET_F_MQ");
			break;
		case BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR):
			seq_puts(seq, " VIRTIO_NET_F_CTRL_MAC_ADDR");
			break;
		case BIT_ULL(VIRTIO_NET_F_HASH_REPORT):
			seq_puts(seq, " VIRTIO_NET_F_HASH_REPORT");
			break;
		case BIT_ULL(VIRTIO_NET_F_RSS):
			seq_puts(seq, " VIRTIO_NET_F_RSS");
			break;
		case BIT_ULL(VIRTIO_NET_F_RSC_EXT):
			seq_puts(seq, " VIRTIO_NET_F_RSC_EXT");
			break;
		case BIT_ULL(VIRTIO_NET_F_STANDBY):
			seq_puts(seq, " VIRTIO_NET_F_STANDBY");
			break;
		case BIT_ULL(VIRTIO_NET_F_SPEED_DUPLEX):
			seq_puts(seq, " VIRTIO_NET_F_SPEED_DUPLEX");
			break;
		case BIT_ULL(VIRTIO_F_NOTIFY_ON_EMPTY):
			seq_puts(seq, " VIRTIO_F_NOTIFY_ON_EMPTY");
			break;
		case BIT_ULL(VIRTIO_F_ANY_LAYOUT):
			seq_puts(seq, " VIRTIO_F_ANY_LAYOUT");
			break;
		case BIT_ULL(VIRTIO_F_VERSION_1):
			seq_puts(seq, " VIRTIO_F_VERSION_1");

Annotation

• Immediate include surface: `linux/pci.h`, `linux/vdpa.h`, `linux/pds/pds_common.h`, `linux/pds/pds_core_if.h`, `linux/pds/pds_adminq.h`, `linux/pds/pds_auxbus.h`, `aux_drv.h`, `vdpa_dev.h`.
• Detected declarations: `function pds_vdpa_debugfs_create`, `function pds_vdpa_debugfs_destroy`, `function print_status_bits`, `function print_feature_bits_all`, `function pds_vdpa_debugfs_add_pcidev`, `function identity_show`, `function pds_vdpa_debugfs_add_ident`, `function config_show`, `function vq_show`, `function pds_vdpa_debugfs_add_vdpadev`.
• Atlas domain: Driver Families / drivers/vdpa.
• 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.