drivers/net/ethernet/hisilicon/hns3/hns3_trace.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/hisilicon/hns3/hns3_trace.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/hisilicon/hns3/hns3_trace.h
Extension
.h
Size
3831 bytes
Lines
139
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

#undef TRACE_SYSTEM
#define TRACE_SYSTEM hns3

#if !defined(_HNS3_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
#define _HNS3_TRACE_H_

#include <linux/tracepoint.h>

#define DESC_NR		(sizeof(struct hns3_desc) / sizeof(u32))

DECLARE_EVENT_CLASS(hns3_skb_template,
	TP_PROTO(struct sk_buff *skb),
	TP_ARGS(skb),

	TP_STRUCT__entry(
		__field(unsigned int, headlen)
		__field(unsigned int, len)
		__field(__u8, nr_frags)
		__field(__u8, ip_summed)
		__field(unsigned int, hdr_len)
		__field(unsigned short, gso_size)
		__field(unsigned short, gso_segs)
		__field(unsigned int, gso_type)
		__field(bool, fraglist)
		__array(__u32, size, MAX_SKB_FRAGS)
	),

	TP_fast_assign(
		__entry->headlen = skb_headlen(skb);
		__entry->len = skb->len;
		__entry->nr_frags = skb_shinfo(skb)->nr_frags;
		__entry->gso_size = skb_shinfo(skb)->gso_size;
		__entry->gso_segs = skb_shinfo(skb)->gso_segs;
		__entry->gso_type = skb_shinfo(skb)->gso_type;
		__entry->hdr_len = skb->encapsulation ?
		skb_inner_tcp_all_headers(skb) : skb_tcp_all_headers(skb);
		__entry->ip_summed = skb->ip_summed;
		__entry->fraglist = skb_has_frag_list(skb);
		hns3_shinfo_pack(skb_shinfo(skb), __entry->size);
	),

	TP_printk(
		"len: %u, %u, %u, cs: %u, gso: %u, %u, %x, frag(%d %u): %s",
		__entry->headlen, __entry->len, __entry->hdr_len,
		__entry->ip_summed, __entry->gso_size, __entry->gso_segs,
		__entry->gso_type, __entry->fraglist, __entry->nr_frags,
		__print_array(__entry->size, MAX_SKB_FRAGS, sizeof(__u32))
	)
);

DEFINE_EVENT(hns3_skb_template, hns3_over_max_bd,
	TP_PROTO(struct sk_buff *skb),
	TP_ARGS(skb));

DEFINE_EVENT(hns3_skb_template, hns3_gro,
	TP_PROTO(struct sk_buff *skb),
	TP_ARGS(skb));

DEFINE_EVENT(hns3_skb_template, hns3_tso,
	TP_PROTO(struct sk_buff *skb),
	TP_ARGS(skb));

TRACE_EVENT(hns3_tx_desc,
	TP_PROTO(struct hns3_enet_ring *ring, int cur_ntu),
	TP_ARGS(ring, cur_ntu),

	TP_STRUCT__entry(
		__field(int, index)
		__field(int, ntu)
		__field(int, ntc)
		__field(dma_addr_t, desc_dma)
		__array(u32, desc, DESC_NR)
		__string(devname, ring->tqp->handle->kinfo.netdev->name)
	),

	TP_fast_assign(
		__entry->index = ring->tqp->tqp_index;
		__entry->ntu = ring->next_to_use;
		__entry->ntc = ring->next_to_clean;
		__entry->desc_dma = ring->desc_dma_addr,
		memcpy(__entry->desc, &ring->desc[cur_ntu],
		       sizeof(struct hns3_desc));
		__assign_str(devname);
	),

	TP_printk(
		"%s-%d-%d/%d desc(%pad): %s",
		__get_str(devname), __entry->index, __entry->ntu,
		__entry->ntc, &__entry->desc_dma,
		__print_array(__entry->desc, DESC_NR, sizeof(u32))

Annotation

Implementation Notes