Commit 48ffc152 authored by Junxian Huang's avatar Junxian Huang Committed by Leon Romanovsky
Browse files

RDMA/hns: Add trace for MR/MTR attribute dumping 



Add trace for MR/MTR attribute dumping.

Output example:
$ cat /sys/kernel/debug/tracing/trace
  tracer: nop

  entries-in-buffer/entries-written: 2/2   #P:128

                                 _-----=> irqs-off/BH-disabled
                               / _----=> need-resched
                               | / _---=> hardirq/softirq
                               || / _--=> preempt-depth
                               ||| / _-=> migrate-disable
                               |||| /     delay
            TASK-PID     CPU#  |||||  TIMESTAMP  FUNCTION
               | |         |   |||||     |         |
      ib_send_bw-14751   [111] .....  8763.823038: hns_buf_attr: rg cnt:1,
pg_sft:0xc, mtt_only:no, rg 0 (sz:131072, hop:2), rg 1 (sz:0, hop:0),
rg 2 (sz:0, hop:0)

      ib_send_bw-14751   [111] .....  8763.823118: hns_mr:
iova:0xffffb2968000, size:131072, key:512, pd:1, pbl_hop:1, npages:4,
type:0, status:0

Signed-off-by: default avatarJunxian Huang <huangjunxian6@hisilicon.com>
Link: https://patch.msgid.link/20250421132750.1363348-5-huangjunxian6@hisilicon.com


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 1e63e2f9

drivers/infiniband/hw/hns/hns_roce_mr.c

+3 −0
Original line number Diff line number Diff line
@@ -38,6 +38,7 @@ 
#include "hns_roce_device.h"

#include "hns_roce_cmd.h"

#include "hns_roce_hem.h"

#include "hns_roce_trace.h"



static u32 hw_index_to_key(int ind)

{
@@ -159,6 +160,7 @@ static int hns_roce_mr_enable(struct hns_roce_dev *hr_dev, 
	if (IS_ERR(mailbox))

		return PTR_ERR(mailbox);



	trace_hns_mr(mr);

	if (mr->type != MR_TYPE_FRMR)

		ret = hr_dev->hw->write_mtpt(hr_dev, mailbox->buf, mr);

	else
@@ -1146,6 +1148,7 @@ int hns_roce_mtr_create(struct hns_roce_dev *hr_dev, struct hns_roce_mtr *mtr, 
	struct ib_device *ibdev = &hr_dev->ib_dev;

	int ret;



	trace_hns_buf_attr(buf_attr);

	/* The caller has its own buffer list and invokes the hns_roce_mtr_map()

	 * to finish the MTT configuration.

	 */

drivers/infiniband/hw/hns/hns_roce_trace.h

+65 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
#define __HNS_ROCE_TRACE_H



#include <linux/tracepoint.h>

#include <linux/string_choices.h>

#include "hns_roce_device.h"



DECLARE_EVENT_CLASS(flush_head_template,
@@ -104,6 +105,70 @@ TRACE_EVENT(hns_ae_info, 
		      __print_array(__entry->aeqe, __entry->len, sizeof(__le32)))

);



TRACE_EVENT(hns_mr,

	    TP_PROTO(struct hns_roce_mr *mr),

	    TP_ARGS(mr),



	    TP_STRUCT__entry(__field(u64, iova)

			     __field(u64, size)

			     __field(u32, key)

			     __field(u32, pd)

			     __field(u32, pbl_hop_num)

			     __field(u32, npages)

			     __field(int, type)

			     __field(int, enabled)

	    ),



	    TP_fast_assign(__entry->iova = mr->iova;

			   __entry->size = mr->size;

			   __entry->key = mr->key;

			   __entry->pd = mr->pd;

			   __entry->pbl_hop_num = mr->pbl_hop_num;

			   __entry->npages = mr->npages;

			   __entry->type = mr->type;

			   __entry->enabled = mr->enabled;

	    ),



	    TP_printk("iova:0x%llx, size:%llu, key:%u, pd:%u, pbl_hop:%u, npages:%u, type:%d, status:%d",

		      __entry->iova, __entry->size, __entry->key,

		      __entry->pd, __entry->pbl_hop_num, __entry->npages,

		      __entry->type, __entry->enabled)

);



TRACE_EVENT(hns_buf_attr,

	    TP_PROTO(struct hns_roce_buf_attr *attr),

	    TP_ARGS(attr),



	    TP_STRUCT__entry(__field(unsigned int, region_count)

			     __field(unsigned int, region0_size)

			     __field(int, region0_hopnum)

			     __field(unsigned int, region1_size)

			     __field(int, region1_hopnum)

			     __field(unsigned int, region2_size)

			     __field(int, region2_hopnum)

			     __field(unsigned int, page_shift)

			     __field(bool, mtt_only)

	    ),



	    TP_fast_assign(__entry->region_count = attr->region_count;

			   __entry->region0_size = attr->region[0].size;

			   __entry->region0_hopnum = attr->region[0].hopnum;

			   __entry->region1_size = attr->region[1].size;

			   __entry->region1_hopnum = attr->region[1].hopnum;

			   __entry->region2_size = attr->region[2].size;

			   __entry->region2_hopnum = attr->region[2].hopnum;

			   __entry->page_shift = attr->page_shift;

			   __entry->mtt_only = attr->mtt_only;

	    ),



	    TP_printk("rg cnt:%u, pg_sft:0x%x, mtt_only:%s, rg 0 (sz:%u, hop:%u), rg 1 (sz:%u, hop:%u), rg 2 (sz:%u, hop:%u)\n",

		      __entry->region_count, __entry->page_shift,

		      str_yes_no(__entry->mtt_only),

		      __entry->region0_size, __entry->region0_hopnum,

		      __entry->region1_size, __entry->region1_hopnum,

		      __entry->region2_size, __entry->region2_hopnum)

);



#endif /* __HNS_ROCE_TRACE_H */



#undef TRACE_INCLUDE_FILE