drivers/net/ethernet/freescale/enetc/enetc_msg.c

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/freescale/enetc/enetc_msg.c

Extension

.c

Size

9492 bytes

Lines

378

Domain

Driver Families

Bucket

drivers/net

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• enetc_pf_common.h

Detected Declarations

• function enetc_msg_disable_mr_int
• function enetc_msg_enable_mr_int
• function enetc_msg_psi_msix
• function enetc_msg_check_crc16
• function enetc_msg_set_vf_primary_mac_addr
• function enetc_msg_handle_mac_filter
• function enetc_msg_handle_ip_revision
• function enetc_msg_handle_rxmsg
• function enetc_msg_task
• function enetc_msg_alloc_mbx
• function enetc_msg_free_mbx
• function enetc_msg_psi_init
• function enetc_msg_psi_free
• function enetc_sriov_configure
• export enetc_sriov_configure

Annotated Snippet

if (err) {
			dev_err(&pdev->dev, "enetc_msg_psi_init (%d)\n", err);
			goto err_msg_psi;
		}

		err = pci_enable_sriov(pdev, num_vfs);
		if (err) {
			dev_err(&pdev->dev, "pci_enable_sriov err %d\n", err);
			goto err_en_sriov;
		}
	}

	return num_vfs;

err_en_sriov:
	enetc_msg_psi_free(pf);
err_msg_psi:
	pf->num_vfs = 0;

	return err;
}
EXPORT_SYMBOL_GPL(enetc_sriov_configure);

Annotation

• Immediate include surface: `enetc_pf_common.h`.
• Detected declarations: `function enetc_msg_disable_mr_int`, `function enetc_msg_enable_mr_int`, `function enetc_msg_psi_msix`, `function enetc_msg_check_crc16`, `function enetc_msg_set_vf_primary_mac_addr`, `function enetc_msg_handle_mac_filter`, `function enetc_msg_handle_ip_revision`, `function enetc_msg_handle_rxmsg`, `function enetc_msg_task`, `function enetc_msg_alloc_mbx`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• 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.