drivers/net/ethernet/rocker/rocker.h
Source file repositories/reference/linux-study-clean/drivers/net/ethernet/rocker/rocker.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/net/ethernet/rocker/rocker.h- Extension
.h- Size
- 4351 bytes
- Lines
- 143
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/kernel.hlinux/types.hlinux/netdevice.hlinux/notifier.hnet/neighbour.hnet/switchdev.hrocker_hw.h
Detected Declarations
struct rocker_desc_infostruct rocker_dma_ring_infostruct rockerstruct rocker_portstruct rocker_world_opsstruct rockerstruct rocker_world_ops
Annotated Snippet
struct rocker_desc_info {
char *data; /* mapped */
size_t data_size;
size_t tlv_size;
struct rocker_desc *desc;
dma_addr_t mapaddr;
};
struct rocker_dma_ring_info {
size_t size;
u32 head;
u32 tail;
struct rocker_desc *desc; /* mapped */
dma_addr_t mapaddr;
struct rocker_desc_info *desc_info;
unsigned int type;
};
struct rocker;
struct rocker_port {
struct net_device *dev;
struct rocker *rocker;
void *wpriv;
unsigned int port_number;
u32 pport;
struct napi_struct napi_tx;
struct napi_struct napi_rx;
struct rocker_dma_ring_info tx_ring;
struct rocker_dma_ring_info rx_ring;
};
struct rocker_port *rocker_port_dev_lower_find(struct net_device *dev,
struct rocker *rocker);
struct rocker_world_ops;
struct rocker {
struct pci_dev *pdev;
u8 __iomem *hw_addr;
struct msix_entry *msix_entries;
unsigned int port_count;
struct rocker_port **ports;
struct {
u64 id;
} hw;
spinlock_t cmd_ring_lock; /* for cmd ring accesses */
struct rocker_dma_ring_info cmd_ring;
struct rocker_dma_ring_info event_ring;
struct notifier_block fib_nb;
struct rocker_world_ops *wops;
struct workqueue_struct *rocker_owq;
void *wpriv;
};
typedef int (*rocker_cmd_prep_cb_t)(const struct rocker_port *rocker_port,
struct rocker_desc_info *desc_info,
void *priv);
typedef int (*rocker_cmd_proc_cb_t)(const struct rocker_port *rocker_port,
const struct rocker_desc_info *desc_info,
void *priv);
int rocker_cmd_exec(struct rocker_port *rocker_port, bool nowait,
rocker_cmd_prep_cb_t prepare, void *prepare_priv,
rocker_cmd_proc_cb_t process, void *process_priv);
int rocker_port_set_learning(struct rocker_port *rocker_port,
bool learning);
struct rocker_world_ops {
const char *kind;
size_t priv_size;
size_t port_priv_size;
u8 mode;
int (*init)(struct rocker *rocker);
void (*fini)(struct rocker *rocker);
int (*port_pre_init)(struct rocker_port *rocker_port);
int (*port_init)(struct rocker_port *rocker_port);
void (*port_fini)(struct rocker_port *rocker_port);
void (*port_post_fini)(struct rocker_port *rocker_port);
int (*port_open)(struct rocker_port *rocker_port);
void (*port_stop)(struct rocker_port *rocker_port);
int (*port_attr_stp_state_set)(struct rocker_port *rocker_port,
u8 state);
int (*port_attr_bridge_flags_set)(struct rocker_port *rocker_port,
unsigned long brport_flags);
int (*port_attr_bridge_flags_support_get)(const struct rocker_port *
rocker_port,
unsigned long *
Annotation
- Immediate include surface: `linux/kernel.h`, `linux/types.h`, `linux/netdevice.h`, `linux/notifier.h`, `net/neighbour.h`, `net/switchdev.h`, `rocker_hw.h`.
- Detected declarations: `struct rocker_desc_info`, `struct rocker_dma_ring_info`, `struct rocker`, `struct rocker_port`, `struct rocker_world_ops`, `struct rocker`, `struct rocker_world_ops`.
- 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.