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177b06ed09
Four different fields are in CDWs of Get LBA Status command which means it would be great if we can see in detail when tracing. Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
256 lines
6.4 KiB
C
256 lines
6.4 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_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_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_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_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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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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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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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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