drivers/net/dsa/ocelot/felix_vsc9959.c

File Facts

System

Linux kernel

Corpus path

drivers/net/dsa/ocelot/felix_vsc9959.c

Extension

.c

Size

82100 bytes

Lines

2758

Domain

Driver Families

Bucket

drivers/net

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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 an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• 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

• linux/fsl/enetc_mdio.h
• soc/mscc/ocelot_qsys.h
• soc/mscc/ocelot_vcap.h
• soc/mscc/ocelot_ana.h
• soc/mscc/ocelot_dev.h
• soc/mscc/ocelot_ptp.h
• soc/mscc/ocelot_sys.h
• net/tc_act/tc_gate.h
• soc/mscc/ocelot.h
• linux/dsa/ocelot.h
• linux/pcs-lynx.h
• net/pkt_sched.h
• linux/iopoll.h
• linux/mdio.h
• linux/of.h
• linux/pci.h
• linux/time.h
• felix.h

Detected Declarations

• struct felix_stream
• struct felix_stream_filter_counters
• struct felix_stream_filter
• struct felix_stream_gate
• struct felix_stream_gate_entry
• function vsc9959_gcb_soft_rst_status
• function vsc9959_sys_ram_init_status
• function vsc9959_reset
• function vsc9959_wm_enc
• function vsc9959_wm_dec
• function vsc9959_wm_stat
• function vsc9959_mdio_bus_alloc
• function vsc9959_mdio_bus_free
• function vsc9959_tas_remaining_gate_len_ps
• function vsc9959_tas_min_gate_lengths
• function vsc9959_port_qmaxsdu_set
• function vsc9959_port_qmaxsdu_get
• function vsc9959_tas_tc_max_sdu
• function vsc9959_sched_speed_set
• function vsc9959_new_base_time
• function vsc9959_tas_read_cfg_status
• function vsc9959_tas_gcl_set
• function vsc9959_qos_port_tas_set
• function vsc9959_tas_clock_adjust
• function vsc9959_qos_port_cbs_set
• function vsc9959_qos_query_caps
• function vsc9959_qos_port_mqprio
• function vsc9959_port_setup_tc
• function vsc9959_stream_identify
• function vsc9959_mact_stream_set
• function vsc9959_stream_table_lookup
• function vsc9959_stream_table_add
• function vsc9959_stream_table_get
• function vsc9959_stream_table_del
• function vsc9959_sfi_access_status
• function vsc9959_psfp_sfi_set
• function vsc9959_psfp_sfidmask_set
• function vsc9959_psfp_sfi_list_add
• function vsc9959_psfp_sfi_table_add
• function list_for_each_safe
• function vsc9959_psfp_sfi_table_add2
• function list_for_each_safe
• function vsc9959_psfp_sfi_table_get
• function vsc9959_psfp_sfi_table_del
• function list_for_each_entry_safe
• function vsc9959_psfp_parse_gate
• function vsc9959_sgi_cfg_status
• function vsc9959_psfp_sgi_set

Annotated Snippet

static struct pci_driver felix_vsc9959_pci_driver = {
	.name		= "mscc_felix",
	.id_table	= felix_ids,
	.probe		= felix_pci_probe,
	.remove		= felix_pci_remove,
	.shutdown	= felix_pci_shutdown,
};
module_pci_driver(felix_vsc9959_pci_driver);

MODULE_DESCRIPTION("Felix Switch driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/fsl/enetc_mdio.h`, `soc/mscc/ocelot_qsys.h`, `soc/mscc/ocelot_vcap.h`, `soc/mscc/ocelot_ana.h`, `soc/mscc/ocelot_dev.h`, `soc/mscc/ocelot_ptp.h`, `soc/mscc/ocelot_sys.h`, `net/tc_act/tc_gate.h`.
• Detected declarations: `struct felix_stream`, `struct felix_stream_filter_counters`, `struct felix_stream_filter`, `struct felix_stream_gate`, `struct felix_stream_gate_entry`, `function vsc9959_gcb_soft_rst_status`, `function vsc9959_sys_ram_init_status`, `function vsc9959_reset`, `function vsc9959_wm_enc`, `function vsc9959_wm_dec`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: pattern 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.