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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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50bee3857d
Add tracing of reservation commands, including register, acquire, release and report, and also parse the action and rtype to string to make the trace log more human-readable. Signed-off-by: Guixin Liu <kanie@linux.alibaba.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
441 lines
12 KiB
C
441 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* NVM Express target device driver tracepoints
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* Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH
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*/
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#include <linux/unaligned.h>
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#include "trace.h"
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static const char *nvmet_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 *nvmet_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 *nvmet_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 *nvmet_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 *nvmet_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 *nvmet_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 *nvmet_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 *nvmet_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_identify:
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return nvmet_trace_admin_identify(p, cdw10);
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case nvme_admin_set_features:
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return nvmet_trace_admin_set_features(p, cdw10);
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case nvme_admin_get_features:
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return nvmet_trace_admin_get_features(p, cdw10);
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case nvme_admin_get_lba_status:
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return nvmet_trace_get_lba_status(p, cdw10);
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default:
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return nvmet_trace_common(p, cdw10);
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}
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}
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static const char *nvmet_trace_zone_mgmt_send(struct trace_seq *p, u8 *cdw10)
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{
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static const char * const zsa_strs[] = {
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[0x01] = "close zone",
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[0x02] = "finish zone",
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[0x03] = "open zone",
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[0x04] = "reset zone",
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[0x05] = "offline zone",
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[0x10] = "set zone descriptor extension"
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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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const char *zsa_str;
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u8 zsa = cdw10[12];
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u8 all = cdw10[13];
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if (zsa < ARRAY_SIZE(zsa_strs) && zsa_strs[zsa])
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zsa_str = zsa_strs[zsa];
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else
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zsa_str = "reserved";
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trace_seq_printf(p, "slba=%llu, zsa=%u:%s, all=%u",
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slba, zsa, zsa_str, 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 *nvmet_trace_zone_mgmt_recv(struct trace_seq *p, u8 *cdw10)
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{
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static const char * const zrasf_strs[] = {
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[0x00] = "list all zones",
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[0x01] = "list the zones in the ZSE: Empty state",
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[0x02] = "list the zones in the ZSIO: Implicitly Opened state",
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[0x03] = "list the zones in the ZSEO: Explicitly Opened state",
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[0x04] = "list the zones in the ZSC: Closed state",
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[0x05] = "list the zones in the ZSF: Full state",
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[0x06] = "list the zones in the ZSRO: Read Only state",
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[0x07] = "list the zones in the ZSO: Offline state",
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[0x09] = "list the zones that have the zone attribute"
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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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const char *zrasf_str;
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u8 pr = cdw10[14];
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if (zrasf < ARRAY_SIZE(zrasf_strs) && zrasf_strs[zrasf])
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zrasf_str = zrasf_strs[zrasf];
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else
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zrasf_str = "reserved";
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trace_seq_printf(p, "slba=%llu, numd=%u, zra=%u, zrasf=%u:%s, pr=%u",
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slba, numd, zra, zrasf, zrasf_str, 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 *nvmet_trace_resv_reg(struct trace_seq *p, u8 *cdw10)
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{
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static const char * const rrega_strs[] = {
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[0x00] = "register",
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[0x01] = "unregister",
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[0x02] = "replace",
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};
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const char *ret = trace_seq_buffer_ptr(p);
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u8 rrega = cdw10[0] & 0x7;
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u8 iekey = (cdw10[0] >> 3) & 0x1;
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u8 ptpl = (cdw10[3] >> 6) & 0x3;
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const char *rrega_str;
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if (rrega < ARRAY_SIZE(rrega_strs) && rrega_strs[rrega])
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rrega_str = rrega_strs[rrega];
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else
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rrega_str = "reserved";
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trace_seq_printf(p, "rrega=%u:%s, iekey=%u, ptpl=%u",
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rrega, rrega_str, iekey, ptpl);
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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 * const rtype_strs[] = {
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[0x00] = "reserved",
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[0x01] = "write exclusive",
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[0x02] = "exclusive access",
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[0x03] = "write exclusive registrants only",
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[0x04] = "exclusive access registrants only",
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[0x05] = "write exclusive all registrants",
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[0x06] = "exclusive access all registrants",
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};
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static const char *nvmet_trace_resv_acq(struct trace_seq *p, u8 *cdw10)
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{
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static const char * const racqa_strs[] = {
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[0x00] = "acquire",
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[0x01] = "preempt",
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[0x02] = "preempt and abort",
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};
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const char *ret = trace_seq_buffer_ptr(p);
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u8 racqa = cdw10[0] & 0x7;
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u8 iekey = (cdw10[0] >> 3) & 0x1;
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u8 rtype = cdw10[1];
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const char *racqa_str = "reserved";
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const char *rtype_str = "reserved";
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if (racqa < ARRAY_SIZE(racqa_strs) && racqa_strs[racqa])
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racqa_str = racqa_strs[racqa];
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if (rtype < ARRAY_SIZE(rtype_strs) && rtype_strs[rtype])
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rtype_str = rtype_strs[rtype];
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trace_seq_printf(p, "racqa=%u:%s, iekey=%u, rtype=%u:%s",
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racqa, racqa_str, iekey, rtype, rtype_str);
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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 *nvmet_trace_resv_rel(struct trace_seq *p, u8 *cdw10)
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{
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static const char * const rrela_strs[] = {
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[0x00] = "release",
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[0x01] = "clear",
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};
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const char *ret = trace_seq_buffer_ptr(p);
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u8 rrela = cdw10[0] & 0x7;
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u8 iekey = (cdw10[0] >> 3) & 0x1;
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u8 rtype = cdw10[1];
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const char *rrela_str = "reserved";
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const char *rtype_str = "reserved";
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if (rrela < ARRAY_SIZE(rrela_strs) && rrela_strs[rrela])
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rrela_str = rrela_strs[rrela];
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if (rtype < ARRAY_SIZE(rtype_strs) && rtype_strs[rtype])
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rtype_str = rtype_strs[rtype];
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trace_seq_printf(p, "rrela=%u:%s, iekey=%u, rtype=%u:%s",
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rrela, rrela_str, iekey, rtype, rtype_str);
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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 *nvmet_trace_resv_report(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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u32 numd = get_unaligned_le32(cdw10);
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u8 eds = cdw10[4] & 0x1;
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trace_seq_printf(p, "numd=%u, eds=%u", numd, eds);
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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 *nvmet_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 nvmet_trace_read_write(p, cdw10);
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case nvme_cmd_dsm:
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return nvmet_trace_dsm(p, cdw10);
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case nvme_cmd_zone_mgmt_send:
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return nvmet_trace_zone_mgmt_send(p, cdw10);
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case nvme_cmd_zone_mgmt_recv:
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return nvmet_trace_zone_mgmt_recv(p, cdw10);
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case nvme_cmd_resv_register:
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return nvmet_trace_resv_reg(p, cdw10);
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case nvme_cmd_resv_acquire:
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return nvmet_trace_resv_acq(p, cdw10);
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case nvme_cmd_resv_release:
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return nvmet_trace_resv_rel(p, cdw10);
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case nvme_cmd_resv_report:
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return nvmet_trace_resv_report(p, cdw10);
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default:
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return nvmet_trace_common(p, cdw10);
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}
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}
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static const char *nvmet_trace_fabrics_property_set(struct trace_seq *p,
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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 *nvmet_trace_fabrics_connect(struct trace_seq *p,
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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 *nvmet_trace_fabrics_property_get(struct trace_seq *p,
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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 *nvmet_trace_fabrics_auth_send(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 spsp0 = spc[1];
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u8 spsp1 = spc[2];
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u8 secp = spc[3];
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u32 tl = get_unaligned_le32(spc + 4);
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trace_seq_printf(p, "spsp0=%02x, spsp1=%02x, secp=%02x, tl=%u",
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spsp0, spsp1, secp, tl);
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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 *nvmet_trace_fabrics_auth_receive(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 spsp0 = spc[1];
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u8 spsp1 = spc[2];
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u8 secp = spc[3];
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u32 al = get_unaligned_le32(spc + 4);
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trace_seq_printf(p, "spsp0=%02x, spsp1=%02x, secp=%02x, al=%u",
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spsp0, spsp1, secp, al);
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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 *nvmet_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 *nvmet_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 nvmet_trace_fabrics_property_set(p, spc);
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case nvme_fabrics_type_connect:
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return nvmet_trace_fabrics_connect(p, spc);
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case nvme_fabrics_type_property_get:
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return nvmet_trace_fabrics_property_get(p, spc);
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case nvme_fabrics_type_auth_send:
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return nvmet_trace_fabrics_auth_send(p, spc);
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case nvme_fabrics_type_auth_receive:
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return nvmet_trace_fabrics_auth_receive(p, spc);
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default:
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return nvmet_trace_fabrics_common(p, spc);
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}
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}
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const char *nvmet_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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const char *nvmet_trace_ctrl_id(struct trace_seq *p, u16 ctrl_id)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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/*
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* XXX: We don't know the controller instance before executing the
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* connect command itself because the connect command for the admin
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* queue will not provide the cntlid which will be allocated in this
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* command. In case of io queues, the controller instance will be
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* mapped by the extra data of the connect command.
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* If we can know the extra data of the connect command in this stage,
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* we can update this print statement later.
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*/
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if (ctrl_id)
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trace_seq_printf(p, "%d", ctrl_id);
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else
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trace_seq_printf(p, "_");
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trace_seq_putc(p, 0);
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|
|
|
return ret;
|
|
}
|
|
|