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a7b5e8d864
A nvme connect command produces following trace.
Before:
/sys/kernel/debug/tracing# cat trace | grep feature
kworker/5:1H-98 [005] .... 3221.294844: nvme_setup_cmd: nvme0: qid=0, cmdid=25, nsid=0, flags=0x0, meta=0x0, cmd=(nvme_admin_set_features cdw10=07 00 00 00 07 00 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00)
kworker/4:1H-124 [004] .... 3222.009186: nvme_setup_cmd: nvme0: qid=0, cmdid=17, nsid=0, flags=0x0, meta=0x0, cmd=(nvme_admin_set_features cdw10=0b 00 00 00 00 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00)
After:
/sys/kernel/debug/tracing# cat trace | grep feature
kworker/0:1H-253 [000] .... 196.060509: nvme_setup_cmd: nvme0: qid=0, cmdid=29, nsid=0, flags=0x0, meta=0x0, cmd=(nvme_admin_set_features fid=0x7, sv=0x0, cdw11=0x70007)
kworker/0:1H-253 [000] .... 196.763947: nvme_setup_cmd: nvme0: qid=0, cmdid=29, nsid=0, flags=0x0, meta=0x0, cmd=(nvme_admin_set_features fid=0xb, sv=0x0, cdw11=0x900)
Using ',' to separate different field like others in
nvmet_trace_admin_get_features.
Signed-off-by: Hou Pu <houpu.main@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
325 lines
8.2 KiB
C
325 lines
8.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* NVM Express device driver tracepoints
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* Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH
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*/
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#include <asm/unaligned.h>
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#include "trace.h"
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static const char *nvme_trace_delete_sq(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u16 sqid = get_unaligned_le16(cdw10);
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trace_seq_printf(p, "sqid=%u", sqid);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_create_sq(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u16 sqid = get_unaligned_le16(cdw10);
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u16 qsize = get_unaligned_le16(cdw10 + 2);
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u16 sq_flags = get_unaligned_le16(cdw10 + 4);
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u16 cqid = get_unaligned_le16(cdw10 + 6);
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trace_seq_printf(p, "sqid=%u, qsize=%u, sq_flags=0x%x, cqid=%u",
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sqid, qsize, sq_flags, cqid);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_delete_cq(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u16 cqid = get_unaligned_le16(cdw10);
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trace_seq_printf(p, "cqid=%u", cqid);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_create_cq(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u16 cqid = get_unaligned_le16(cdw10);
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u16 qsize = get_unaligned_le16(cdw10 + 2);
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u16 cq_flags = get_unaligned_le16(cdw10 + 4);
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u16 irq_vector = get_unaligned_le16(cdw10 + 6);
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trace_seq_printf(p, "cqid=%u, qsize=%u, cq_flags=0x%x, irq_vector=%u",
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cqid, qsize, cq_flags, irq_vector);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_admin_identify(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u8 cns = cdw10[0];
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u16 ctrlid = get_unaligned_le16(cdw10 + 2);
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trace_seq_printf(p, "cns=%u, ctrlid=%u", cns, ctrlid);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_admin_set_features(struct trace_seq *p,
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u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u8 fid = cdw10[0];
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u8 sv = cdw10[3] & 0x8;
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u32 cdw11 = get_unaligned_le32(cdw10 + 4);
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trace_seq_printf(p, "fid=0x%x, sv=0x%x, cdw11=0x%x", fid, sv, cdw11);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_admin_get_features(struct trace_seq *p,
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u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u8 fid = cdw10[0];
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u8 sel = cdw10[1] & 0x7;
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u32 cdw11 = get_unaligned_le32(cdw10 + 4);
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trace_seq_printf(p, "fid=0x%x, sel=0x%x, cdw11=0x%x", fid, sel, cdw11);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_get_lba_status(struct trace_seq *p,
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u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u64 slba = get_unaligned_le64(cdw10);
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u32 mndw = get_unaligned_le32(cdw10 + 8);
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u16 rl = get_unaligned_le16(cdw10 + 12);
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u8 atype = cdw10[15];
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trace_seq_printf(p, "slba=0x%llx, mndw=0x%x, rl=0x%x, atype=%u",
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slba, mndw, rl, atype);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_admin_format_nvm(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u8 lbaf = cdw10[0] & 0xF;
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u8 mset = (cdw10[0] >> 4) & 0x1;
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u8 pi = (cdw10[0] >> 5) & 0x7;
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u8 pil = cdw10[1] & 0x1;
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u8 ses = (cdw10[1] >> 1) & 0x7;
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trace_seq_printf(p, "lbaf=%u, mset=%u, pi=%u, pil=%u, ses=%u",
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lbaf, mset, pi, pil, ses);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_read_write(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u64 slba = get_unaligned_le64(cdw10);
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u16 length = get_unaligned_le16(cdw10 + 8);
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u16 control = get_unaligned_le16(cdw10 + 10);
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u32 dsmgmt = get_unaligned_le32(cdw10 + 12);
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u32 reftag = get_unaligned_le32(cdw10 + 16);
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trace_seq_printf(p,
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"slba=%llu, len=%u, ctrl=0x%x, dsmgmt=%u, reftag=%u",
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slba, length, control, dsmgmt, reftag);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_dsm(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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trace_seq_printf(p, "nr=%u, attributes=%u",
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get_unaligned_le32(cdw10),
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get_unaligned_le32(cdw10 + 4));
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_zone_mgmt_send(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u64 slba = get_unaligned_le64(cdw10);
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u8 zsa = cdw10[12];
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u8 all = cdw10[13];
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trace_seq_printf(p, "slba=%llu, zsa=%u, all=%u", slba, zsa, all);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_zone_mgmt_recv(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u64 slba = get_unaligned_le64(cdw10);
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u32 numd = get_unaligned_le32(cdw10 + 8);
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u8 zra = cdw10[12];
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u8 zrasf = cdw10[13];
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u8 pr = cdw10[14];
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trace_seq_printf(p, "slba=%llu, numd=%u, zra=%u, zrasf=%u, pr=%u",
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slba, numd, zra, zrasf, pr);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_common(struct trace_seq *p, u8 *cdw10)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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trace_seq_printf(p, "cdw10=%*ph", 24, cdw10);
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trace_seq_putc(p, 0);
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return ret;
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}
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const char *nvme_trace_parse_admin_cmd(struct trace_seq *p,
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u8 opcode, u8 *cdw10)
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{
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switch (opcode) {
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case nvme_admin_delete_sq:
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return nvme_trace_delete_sq(p, cdw10);
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case nvme_admin_create_sq:
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return nvme_trace_create_sq(p, cdw10);
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case nvme_admin_delete_cq:
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return nvme_trace_delete_cq(p, cdw10);
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case nvme_admin_create_cq:
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return nvme_trace_create_cq(p, cdw10);
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case nvme_admin_identify:
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return nvme_trace_admin_identify(p, cdw10);
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case nvme_admin_set_features:
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return nvme_trace_admin_set_features(p, cdw10);
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case nvme_admin_get_features:
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return nvme_trace_admin_get_features(p, cdw10);
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case nvme_admin_get_lba_status:
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return nvme_trace_get_lba_status(p, cdw10);
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case nvme_admin_format_nvm:
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return nvme_trace_admin_format_nvm(p, cdw10);
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default:
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return nvme_trace_common(p, cdw10);
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}
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}
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const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p,
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u8 opcode, u8 *cdw10)
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{
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switch (opcode) {
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case nvme_cmd_read:
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case nvme_cmd_write:
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case nvme_cmd_write_zeroes:
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case nvme_cmd_zone_append:
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return nvme_trace_read_write(p, cdw10);
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case nvme_cmd_dsm:
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return nvme_trace_dsm(p, cdw10);
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case nvme_cmd_zone_mgmt_send:
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return nvme_trace_zone_mgmt_send(p, cdw10);
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case nvme_cmd_zone_mgmt_recv:
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return nvme_trace_zone_mgmt_recv(p, cdw10);
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default:
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return nvme_trace_common(p, cdw10);
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}
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}
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static const char *nvme_trace_fabrics_property_set(struct trace_seq *p, u8 *spc)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u8 attrib = spc[0];
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u32 ofst = get_unaligned_le32(spc + 4);
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u64 value = get_unaligned_le64(spc + 8);
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trace_seq_printf(p, "attrib=%u, ofst=0x%x, value=0x%llx",
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attrib, ofst, value);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_fabrics_connect(struct trace_seq *p, u8 *spc)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u16 recfmt = get_unaligned_le16(spc);
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u16 qid = get_unaligned_le16(spc + 2);
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u16 sqsize = get_unaligned_le16(spc + 4);
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u8 cattr = spc[6];
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u32 kato = get_unaligned_le32(spc + 8);
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trace_seq_printf(p, "recfmt=%u, qid=%u, sqsize=%u, cattr=%u, kato=%u",
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recfmt, qid, sqsize, cattr, kato);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_fabrics_property_get(struct trace_seq *p, u8 *spc)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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u8 attrib = spc[0];
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u32 ofst = get_unaligned_le32(spc + 4);
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trace_seq_printf(p, "attrib=%u, ofst=0x%x", attrib, ofst);
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trace_seq_putc(p, 0);
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return ret;
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}
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static const char *nvme_trace_fabrics_common(struct trace_seq *p, u8 *spc)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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trace_seq_printf(p, "specific=%*ph", 24, spc);
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trace_seq_putc(p, 0);
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return ret;
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}
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const char *nvme_trace_parse_fabrics_cmd(struct trace_seq *p,
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u8 fctype, u8 *spc)
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{
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switch (fctype) {
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case nvme_fabrics_type_property_set:
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return nvme_trace_fabrics_property_set(p, spc);
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case nvme_fabrics_type_connect:
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return nvme_trace_fabrics_connect(p, spc);
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case nvme_fabrics_type_property_get:
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return nvme_trace_fabrics_property_get(p, spc);
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default:
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return nvme_trace_fabrics_common(p, spc);
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}
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}
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const char *nvme_trace_disk_name(struct trace_seq *p, char *name)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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if (*name)
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trace_seq_printf(p, "disk=%s, ", name);
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trace_seq_putc(p, 0);
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return ret;
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}
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EXPORT_TRACEPOINT_SYMBOL_GPL(nvme_sq);
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