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net: hns3: add trace event support for HNS3 driver
This adds trace support for HNS3 driver. It also declares some events which could be used to trace the events when a TX/RX BD is processed, and other events which are related to the processing of sk_buff, such as TSO, GRO. Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| /* SPDX-License-Identifier: GPL-2.0+ */ | ||
| /* Copyright (c) 2018-2019 Hisilicon Limited. */ | ||
|
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| /* This must be outside ifdef _HNS3_TRACE_H */ | ||
| #undef TRACE_SYSTEM | ||
| #define TRACE_SYSTEM hns3 | ||
|
|
||
| #if !defined(_HNS3_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ) | ||
| #define _HNS3_TRACE_H_ | ||
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| #include <linux/tracepoint.h> | ||
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| #define DESC_NR (sizeof(struct hns3_desc) / sizeof(u32)) | ||
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| DECLARE_EVENT_CLASS(hns3_skb_template, | ||
| TP_PROTO(struct sk_buff *skb), | ||
| TP_ARGS(skb), | ||
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||
| 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) | ||
| ), | ||
|
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||
| 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_transport_offset(skb) + inner_tcp_hdrlen(skb) : | ||
| skb_transport_offset(skb) + tcp_hdrlen(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)) | ||
| ) | ||
| ); | ||
|
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||
| DEFINE_EVENT(hns3_skb_template, hns3_over_8bd, | ||
| TP_PROTO(struct sk_buff *skb), | ||
| TP_ARGS(skb)); | ||
|
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||
| DEFINE_EVENT(hns3_skb_template, hns3_gro, | ||
| TP_PROTO(struct sk_buff *skb), | ||
| TP_ARGS(skb)); | ||
|
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| DEFINE_EVENT(hns3_skb_template, hns3_tso, | ||
| TP_PROTO(struct sk_buff *skb), | ||
| TP_ARGS(skb)); | ||
|
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||
| 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, ring->tqp->handle->kinfo.netdev->name); | ||
| ), | ||
|
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||
| 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)) | ||
| ) | ||
| ); | ||
|
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||
| TRACE_EVENT(hns3_rx_desc, | ||
| TP_PROTO(struct hns3_enet_ring *ring), | ||
| TP_ARGS(ring), | ||
|
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||
| TP_STRUCT__entry( | ||
| __field(int, index) | ||
| __field(int, ntu) | ||
| __field(int, ntc) | ||
| __field(dma_addr_t, desc_dma) | ||
| __field(dma_addr_t, buf_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; | ||
| __entry->buf_dma = ring->desc_cb[ring->next_to_clean].dma; | ||
| memcpy(__entry->desc, &ring->desc[ring->next_to_clean], | ||
| sizeof(struct hns3_desc)); | ||
| __assign_str(devname, ring->tqp->handle->kinfo.netdev->name); | ||
| ), | ||
|
|
||
| TP_printk( | ||
| "%s-%d-%d/%d desc(%pad) buf(%pad): %s", | ||
| __get_str(devname), __entry->index, __entry->ntu, | ||
| __entry->ntc, &__entry->desc_dma, &__entry->buf_dma, | ||
| __print_array(__entry->desc, DESC_NR, sizeof(u32)) | ||
| ) | ||
| ); | ||
|
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| #endif /* _HNS3_TRACE_H_ */ | ||
|
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| /* This must be outside ifdef _HNS3_TRACE_H */ | ||
| #undef TRACE_INCLUDE_PATH | ||
| #define TRACE_INCLUDE_PATH . | ||
| #undef TRACE_INCLUDE_FILE | ||
| #define TRACE_INCLUDE_FILE hns3_trace | ||
| #include <trace/define_trace.h> |