drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.h
Extension
.h
Size
4774 bytes
Lines
149
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct ch_tc_flower_stats {
	u64 prev_packet_count;
	u64 packet_count;
	u64 byte_count;
	u64 last_used;
};

struct ch_tc_flower_entry {
	struct ch_filter_specification fs;
	struct ch_tc_flower_stats stats;
	unsigned long tc_flower_cookie;
	struct rhash_head node;
	struct rcu_head rcu;
	spinlock_t lock; /* lock for stats */
	u32 filter_id;
};

enum {
	ETH_DMAC_31_0,	/* dmac bits 0.. 31 */
	ETH_DMAC_47_32,	/* dmac bits 32..47 */
	ETH_SMAC_15_0,	/* smac bits 0.. 15 */
	ETH_SMAC_47_16,	/* smac bits 16..47 */

	IP4_SRC,	/* 32-bit IPv4 src  */
	IP4_DST,	/* 32-bit IPv4 dst  */

	IP6_SRC_31_0,	/* src bits 0..  31 */
	IP6_SRC_63_32,	/* src bits 63.. 32 */
	IP6_SRC_95_64,	/* src bits 95.. 64 */
	IP6_SRC_127_96,	/* src bits 127..96 */

	IP6_DST_31_0,	/* dst bits 0..  31 */
	IP6_DST_63_32,	/* dst bits 63.. 32 */
	IP6_DST_95_64,	/* dst bits 95.. 64 */
	IP6_DST_127_96,	/* dst bits 127..96 */

	TCP_SPORT,	/* 16-bit TCP sport */
	TCP_DPORT,	/* 16-bit TCP dport */

	UDP_SPORT,	/* 16-bit UDP sport */
	UDP_DPORT,	/* 16-bit UDP dport */
};

struct ch_tc_pedit_fields {
	u8 field;
	u8 size;
	u32 offset;
};

#define PEDIT_FIELDS(type, field, size, fs_field, offset) \
	{ type## field, size, \
		offsetof(struct ch_filter_specification, fs_field) + (offset) }

#define PEDIT_ETH_DMAC_MASK		0xffff
#define PEDIT_TCP_UDP_SPORT_MASK	0xffff
#define PEDIT_ETH_DMAC_31_0		0x0
#define PEDIT_ETH_DMAC_47_32_SMAC_15_0	0x4
#define PEDIT_ETH_SMAC_47_16		0x8
#define PEDIT_IP4_SRC			0xC
#define PEDIT_IP4_DST			0x10
#define PEDIT_IP6_SRC_31_0		0x8
#define PEDIT_IP6_SRC_63_32		0xC
#define PEDIT_IP6_SRC_95_64		0x10
#define PEDIT_IP6_SRC_127_96		0x14
#define PEDIT_IP6_DST_31_0		0x18
#define PEDIT_IP6_DST_63_32		0x1C
#define PEDIT_IP6_DST_95_64		0x20
#define PEDIT_IP6_DST_127_96		0x24
#define PEDIT_TCP_SPORT_DPORT		0x0
#define PEDIT_UDP_SPORT_DPORT		0x0

enum cxgb4_action_natmode_flags {
	CXGB4_ACTION_NATMODE_NONE = 0,
	CXGB4_ACTION_NATMODE_DIP = (1 << 0),
	CXGB4_ACTION_NATMODE_SIP = (1 << 1),
	CXGB4_ACTION_NATMODE_DPORT = (1 << 2),
	CXGB4_ACTION_NATMODE_SPORT = (1 << 3),
};

/* TC PEDIT action to NATMODE translation entry */
struct cxgb4_natmode_config {
	enum chip_type chip;
	u8 flags;
	u8 natmode;
};

void cxgb4_process_flow_actions(struct net_device *in,
				struct flow_action *actions,
				struct ch_filter_specification *fs);
int cxgb4_validate_flow_actions(struct net_device *dev,

Annotation

Implementation Notes