| 1 | |
| 2 | |
| 3 | * NVM Express target device driver tracepoints
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| 4 | * Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH
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| 5 |
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| 6 |
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| 7 | #include <linux/unaligned.h>
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| 8 | #include "trace.h"
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| 9 |
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| 10 | static const char *nvmet_trace_admin_identify(struct trace_seq *p, u8 *cdw10)
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| 11 | {
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| 12 | const char *ret = trace_seq_buffer_ptr(p);
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| 13 | u8 cns = cdw10[0];
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| 14 | u16 ctrlid = get_unaligned_le16(cdw10 + 2);
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| 15 |
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| 16 | trace_seq_printf(p, "cns=%u, ctrlid=%u", cns, ctrlid);
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| 17 | trace_seq_putc(p, 0);
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| 18 |
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| 19 | return ret;
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| 20 | }
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| 21 |
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| 22 | static const char *nvmet_trace_admin_get_features(struct trace_seq *p,
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| 23 | u8 *cdw10)
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| 24 | {
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| 25 | const char *ret = trace_seq_buffer_ptr(p);
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| 26 | u8 fid = cdw10[0];
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| 27 | u8 sel = cdw10[1] & 0x7;
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| 28 | u32 cdw11 = get_unaligned_le32(cdw10 + 4);
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| 29 |
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| 30 | trace_seq_printf(p, "fid=0x%x, sel=0x%x, cdw11=0x%x", fid, sel, cdw11);
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| 31 | trace_seq_putc(p, 0);
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| 32 |
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| 33 | return ret;
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| 34 | }
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| 35 |
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| 36 | static const char *nvmet_trace_get_lba_status(struct trace_seq *p,
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| 37 | u8 *cdw10)
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| 38 | {
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| 39 | const char *ret = trace_seq_buffer_ptr(p);
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| 40 | u64 slba = get_unaligned_le64(cdw10);
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| 41 | u32 mndw = get_unaligned_le32(cdw10 + 8);
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| 42 | u16 rl = get_unaligned_le16(cdw10 + 12);
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| 43 | u8 atype = cdw10[15];
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| 44 |
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| 45 | trace_seq_printf(p, "slba=0x%llx, mndw=0x%x, rl=0x%x, atype=%u",
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| 46 | slba, mndw, rl, atype);
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| 47 | trace_seq_putc(p, 0);
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| 48 |
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| 49 | return ret;
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| 50 | }
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| 51 |
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| 52 | static const char *nvmet_trace_admin_set_features(struct trace_seq *p,
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| 53 | u8 *cdw10)
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| 54 | {
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| 55 | const char *ret = trace_seq_buffer_ptr(p);
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| 56 | u8 fid = cdw10[0];
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| 57 | u8 sv = cdw10[3] & 0x8;
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| 58 | u32 cdw11 = get_unaligned_le32(cdw10 + 4);
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| 59 |
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| 60 | trace_seq_printf(p, "fid=0x%x, sv=0x%x, cdw11=0x%x", fid, sv, cdw11);
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| 61 | trace_seq_putc(p, 0);
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| 62 |
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| 63 | return ret;
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| 64 | }
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| 65 |
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| 66 | static const char *nvmet_trace_read_write(struct trace_seq *p, u8 *cdw10)
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| 67 | {
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| 68 | const char *ret = trace_seq_buffer_ptr(p);
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| 69 | u64 slba = get_unaligned_le64(cdw10);
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| 70 | u16 length = get_unaligned_le16(cdw10 + 8);
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| 71 | u16 control = get_unaligned_le16(cdw10 + 10);
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| 72 | u32 dsmgmt = get_unaligned_le32(cdw10 + 12);
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| 73 | u32 reftag = get_unaligned_le32(cdw10 + 16);
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| 74 |
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| 75 | trace_seq_printf(p,
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| 76 | "slba=%llu, len=%u, ctrl=0x%x, dsmgmt=%u, reftag=%u",
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| 77 | slba, length, control, dsmgmt, reftag);
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| 78 | trace_seq_putc(p, 0);
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| 79 |
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| 80 | return ret;
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| 81 | }
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| 82 |
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| 83 | static const char *nvmet_trace_dsm(struct trace_seq *p, u8 *cdw10)
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| 84 | {
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| 85 | const char *ret = trace_seq_buffer_ptr(p);
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| 86 |
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| 87 | trace_seq_printf(p, "nr=%u, attributes=%u",
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| 88 | get_unaligned_le32(cdw10),
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| 89 | get_unaligned_le32(cdw10 + 4));
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| 90 | trace_seq_putc(p, 0);
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| 91 |
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| 92 | return ret;
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| 93 | }
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| 94 |
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| 95 | static const char *nvmet_trace_common(struct trace_seq *p, u8 *cdw10)
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| 96 | {
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| 97 | const char *ret = trace_seq_buffer_ptr(p);
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| 98 |
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| 99 | trace_seq_printf(p, "cdw10=%*ph", 24, cdw10);
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| 100 | trace_seq_putc(p, 0);
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| 101 |
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| 102 | return ret;
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| 103 | }
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| 104 |
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| 105 | const char *nvmet_trace_parse_admin_cmd(struct trace_seq *p,
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| 106 | u8 opcode, u8 *cdw10)
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| 107 | {
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| 108 | switch (opcode) {
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| 109 | case nvme_admin_identify:
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| 110 | return nvmet_trace_admin_identify(p, cdw10);
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| 111 | case nvme_admin_set_features:
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| 112 | return nvmet_trace_admin_set_features(p, cdw10);
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| 113 | case nvme_admin_get_features:
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| 114 | return nvmet_trace_admin_get_features(p, cdw10);
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| 115 | case nvme_admin_get_lba_status:
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| 116 | return nvmet_trace_get_lba_status(p, cdw10);
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| 117 | default:
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| 118 | return nvmet_trace_common(p, cdw10);
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| 119 | }
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| 120 | }
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| 121 |
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| 122 | static const char *nvmet_trace_zone_mgmt_send(struct trace_seq *p, u8 *cdw10)
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| 123 | {
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| 124 | static const char * const zsa_strs[] = {
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| 125 | [0x01] = "close zone",
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| 126 | [0x02] = "finish zone",
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| 127 | [0x03] = "open zone",
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| 128 | [0x04] = "reset zone",
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| 129 | [0x05] = "offline zone",
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| 130 | [0x10] = "set zone descriptor extension"
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| 131 | };
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| 132 | const char *ret = trace_seq_buffer_ptr(p);
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| 133 | u64 slba = get_unaligned_le64(cdw10);
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| 134 | const char *zsa_str;
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| 135 | u8 zsa = cdw10[12];
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| 136 | u8 all = cdw10[13];
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| 137 |
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| 138 | if (zsa < ARRAY_SIZE(zsa_strs) && zsa_strs[zsa])
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| 139 | zsa_str = zsa_strs[zsa];
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| 140 | else
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| 141 | zsa_str = "reserved";
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| 142 |
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| 143 | trace_seq_printf(p, "slba=%llu, zsa=%u:%s, all=%u",
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| 144 | slba, zsa, zsa_str, all);
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| 145 | trace_seq_putc(p, 0);
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| 146 |
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| 147 | return ret;
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| 148 | }
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| 149 |
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| 150 | static const char *nvmet_trace_zone_mgmt_recv(struct trace_seq *p, u8 *cdw10)
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| 151 | {
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| 152 | static const char * const zrasf_strs[] = {
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| 153 | [0x00] = "list all zones",
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| 154 | [0x01] = "list the zones in the ZSE: Empty state",
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| 155 | [0x02] = "list the zones in the ZSIO: Implicitly Opened state",
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| 156 | [0x03] = "list the zones in the ZSEO: Explicitly Opened state",
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| 157 | [0x04] = "list the zones in the ZSC: Closed state",
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| 158 | [0x05] = "list the zones in the ZSF: Full state",
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| 159 | [0x06] = "list the zones in the ZSRO: Read Only state",
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| 160 | [0x07] = "list the zones in the ZSO: Offline state",
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| 161 | [0x09] = "list the zones that have the zone attribute"
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| 162 | };
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| 163 | const char *ret = trace_seq_buffer_ptr(p);
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| 164 | u64 slba = get_unaligned_le64(cdw10);
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| 165 | u32 numd = get_unaligned_le32(&cdw10[8]);
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| 166 | u8 zra = cdw10[12];
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| 167 | u8 zrasf = cdw10[13];
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| 168 | const char *zrasf_str;
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| 169 | u8 pr = cdw10[14];
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| 170 |
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| 171 | if (zrasf < ARRAY_SIZE(zrasf_strs) && zrasf_strs[zrasf])
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| 172 | zrasf_str = zrasf_strs[zrasf];
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| 173 | else
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| 174 | zrasf_str = "reserved";
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| 175 |
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| 176 | trace_seq_printf(p, "slba=%llu, numd=%u, zra=%u, zrasf=%u:%s, pr=%u",
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| 177 | slba, numd, zra, zrasf, zrasf_str, pr);
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| 178 | trace_seq_putc(p, 0);
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| 179 |
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| 180 | return ret;
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| 181 | }
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| 182 |
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| 183 | static const char *nvmet_trace_resv_reg(struct trace_seq *p, u8 *cdw10)
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| 184 | {
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| 185 | static const char * const rrega_strs[] = {
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| 186 | [0x00] = "register",
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| 187 | [0x01] = "unregister",
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| 188 | [0x02] = "replace",
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| 189 | };
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| 190 | const char *ret = trace_seq_buffer_ptr(p);
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| 191 | u8 rrega = cdw10[0] & 0x7;
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| 192 | u8 iekey = (cdw10[0] >> 3) & 0x1;
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| 193 | u8 ptpl = (cdw10[3] >> 6) & 0x3;
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| 194 | const char *rrega_str;
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| 195 |
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| 196 | if (rrega < ARRAY_SIZE(rrega_strs) && rrega_strs[rrega])
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| 197 | rrega_str = rrega_strs[rrega];
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| 198 | else
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| 199 | rrega_str = "reserved";
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| 200 |
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| 201 | trace_seq_printf(p, "rrega=%u:%s, iekey=%u, ptpl=%u",
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| 202 | rrega, rrega_str, iekey, ptpl);
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| 203 | trace_seq_putc(p, 0);
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| 204 |
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| 205 | return ret;
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| 206 | }
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| 207 |
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| 208 | static const char * const rtype_strs[] = {
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| 209 | [0x00] = "reserved",
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| 210 | [0x01] = "write exclusive",
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| 211 | [0x02] = "exclusive access",
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| 212 | [0x03] = "write exclusive registrants only",
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| 213 | [0x04] = "exclusive access registrants only",
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| 214 | [0x05] = "write exclusive all registrants",
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| 215 | [0x06] = "exclusive access all registrants",
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| 216 | };
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| 217 |
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| 218 | static const char *nvmet_trace_resv_acq(struct trace_seq *p, u8 *cdw10)
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| 219 | {
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| 220 | static const char * const racqa_strs[] = {
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| 221 | [0x00] = "acquire",
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| 222 | [0x01] = "preempt",
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| 223 | [0x02] = "preempt and abort",
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| 224 | };
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| 225 | const char *ret = trace_seq_buffer_ptr(p);
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| 226 | u8 racqa = cdw10[0] & 0x7;
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| 227 | u8 iekey = (cdw10[0] >> 3) & 0x1;
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| 228 | u8 rtype = cdw10[1];
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| 229 | const char *racqa_str = "reserved";
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| 230 | const char *rtype_str = "reserved";
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| 231 |
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| 232 | if (racqa < ARRAY_SIZE(racqa_strs) && racqa_strs[racqa])
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| 233 | racqa_str = racqa_strs[racqa];
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| 234 |
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| 235 | if (rtype < ARRAY_SIZE(rtype_strs) && rtype_strs[rtype])
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| 236 | rtype_str = rtype_strs[rtype];
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| 237 |
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| 238 | trace_seq_printf(p, "racqa=%u:%s, iekey=%u, rtype=%u:%s",
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| 239 | racqa, racqa_str, iekey, rtype, rtype_str);
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| 240 | trace_seq_putc(p, 0);
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| 241 |
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| 242 | return ret;
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| 243 | }
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| 244 |
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| 245 | static const char *nvmet_trace_resv_rel(struct trace_seq *p, u8 *cdw10)
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| 246 | {
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| 247 | static const char * const rrela_strs[] = {
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| 248 | [0x00] = "release",
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| 249 | [0x01] = "clear",
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| 250 | };
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| 251 | const char *ret = trace_seq_buffer_ptr(p);
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| 252 | u8 rrela = cdw10[0] & 0x7;
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| 253 | u8 iekey = (cdw10[0] >> 3) & 0x1;
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| 254 | u8 rtype = cdw10[1];
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| 255 | const char *rrela_str = "reserved";
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| 256 | const char *rtype_str = "reserved";
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| 257 |
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| 258 | if (rrela < ARRAY_SIZE(rrela_strs) && rrela_strs[rrela])
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| 259 | rrela_str = rrela_strs[rrela];
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| 260 |
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| 261 | if (rtype < ARRAY_SIZE(rtype_strs) && rtype_strs[rtype])
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| 262 | rtype_str = rtype_strs[rtype];
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| 263 |
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| 264 | trace_seq_printf(p, "rrela=%u:%s, iekey=%u, rtype=%u:%s",
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| 265 | rrela, rrela_str, iekey, rtype, rtype_str);
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| 266 | trace_seq_putc(p, 0);
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| 267 |
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| 268 | return ret;
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| 269 | }
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| 270 |
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| 271 | static const char *nvmet_trace_resv_report(struct trace_seq *p, u8 *cdw10)
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| 272 | {
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| 273 | const char *ret = trace_seq_buffer_ptr(p);
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| 274 | u32 numd = get_unaligned_le32(cdw10);
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| 275 | u8 eds = cdw10[4] & 0x1;
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| 276 |
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| 277 | trace_seq_printf(p, "numd=%u, eds=%u", numd, eds);
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| 278 | trace_seq_putc(p, 0);
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| 279 |
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| 280 | return ret;
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| 281 | }
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| 282 |
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| 283 | const char *nvmet_trace_parse_nvm_cmd(struct trace_seq *p,
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| 284 | u8 opcode, u8 *cdw10)
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| 285 | {
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| 286 | switch (opcode) {
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| 287 | case nvme_cmd_read:
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| 288 | case nvme_cmd_write:
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| 289 | case nvme_cmd_write_zeroes:
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| 290 | case nvme_cmd_zone_append:
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| 291 | return nvmet_trace_read_write(p, cdw10);
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| 292 | case nvme_cmd_dsm:
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| 293 | return nvmet_trace_dsm(p, cdw10);
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| 294 | case nvme_cmd_zone_mgmt_send:
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| 295 | return nvmet_trace_zone_mgmt_send(p, cdw10);
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| 296 | case nvme_cmd_zone_mgmt_recv:
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| 297 | return nvmet_trace_zone_mgmt_recv(p, cdw10);
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| 298 | case nvme_cmd_resv_register:
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| 299 | return nvmet_trace_resv_reg(p, cdw10);
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| 300 | case nvme_cmd_resv_acquire:
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| 301 | return nvmet_trace_resv_acq(p, cdw10);
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| 302 | case nvme_cmd_resv_release:
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| 303 | return nvmet_trace_resv_rel(p, cdw10);
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| 304 | case nvme_cmd_resv_report:
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| 305 | return nvmet_trace_resv_report(p, cdw10);
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| 306 | default:
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| 307 | return nvmet_trace_common(p, cdw10);
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| 308 | }
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| 309 | }
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| 310 |
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| 311 | static const char *nvmet_trace_fabrics_property_set(struct trace_seq *p,
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| 312 | u8 *spc)
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| 313 | {
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| 314 | const char *ret = trace_seq_buffer_ptr(p);
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| 315 | u8 attrib = spc[0];
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| 316 | u32 ofst = get_unaligned_le32(spc + 4);
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| 317 | u64 value = get_unaligned_le64(spc + 8);
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| 318 |
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| 319 | trace_seq_printf(p, "attrib=%u, ofst=0x%x, value=0x%llx",
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| 320 | attrib, ofst, value);
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| 321 | trace_seq_putc(p, 0);
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| 322 | return ret;
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| 323 | }
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| 324 |
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| 325 | static const char *nvmet_trace_fabrics_connect(struct trace_seq *p,
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| 326 | u8 *spc)
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| 327 | {
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| 328 | const char *ret = trace_seq_buffer_ptr(p);
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| 329 | u16 recfmt = get_unaligned_le16(spc);
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| 330 | u16 qid = get_unaligned_le16(spc + 2);
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| 331 | u16 sqsize = get_unaligned_le16(spc + 4);
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| 332 | u8 cattr = spc[6];
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| 333 | u32 kato = get_unaligned_le32(spc + 8);
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| 334 |
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| 335 | trace_seq_printf(p, "recfmt=%u, qid=%u, sqsize=%u, cattr=%u, kato=%u",
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| 336 | recfmt, qid, sqsize, cattr, kato);
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| 337 | trace_seq_putc(p, 0);
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| 338 | return ret;
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| 339 | }
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| 340 |
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| 341 | static const char *nvmet_trace_fabrics_property_get(struct trace_seq *p,
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| 342 | u8 *spc)
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| 343 | {
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| 344 | const char *ret = trace_seq_buffer_ptr(p);
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| 345 | u8 attrib = spc[0];
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| 346 | u32 ofst = get_unaligned_le32(spc + 4);
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| 347 |
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| 348 | trace_seq_printf(p, "attrib=%u, ofst=0x%x", attrib, ofst);
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| 349 | trace_seq_putc(p, 0);
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| 350 | return ret;
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| 351 | }
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| 352 |
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| 353 | static const char *nvmet_trace_fabrics_auth_send(struct trace_seq *p, u8 *spc)
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| 354 | {
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| 355 | const char *ret = trace_seq_buffer_ptr(p);
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| 356 | u8 spsp0 = spc[1];
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| 357 | u8 spsp1 = spc[2];
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| 358 | u8 secp = spc[3];
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| 359 | u32 tl = get_unaligned_le32(spc + 4);
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| 360 |
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| 361 | trace_seq_printf(p, "spsp0=%02x, spsp1=%02x, secp=%02x, tl=%u",
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| 362 | spsp0, spsp1, secp, tl);
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| 363 | trace_seq_putc(p, 0);
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| 364 | return ret;
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| 365 | }
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| 366 |
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| 367 | static const char *nvmet_trace_fabrics_auth_receive(struct trace_seq *p, u8 *spc)
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| 368 | {
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| 369 | const char *ret = trace_seq_buffer_ptr(p);
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| 370 | u8 spsp0 = spc[1];
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| 371 | u8 spsp1 = spc[2];
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| 372 | u8 secp = spc[3];
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| 373 | u32 al = get_unaligned_le32(spc + 4);
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| 374 |
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| 375 | trace_seq_printf(p, "spsp0=%02x, spsp1=%02x, secp=%02x, al=%u",
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| 376 | spsp0, spsp1, secp, al);
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| 377 | trace_seq_putc(p, 0);
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| 378 | return ret;
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| 379 | }
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| 380 |
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| 381 | static const char *nvmet_trace_fabrics_common(struct trace_seq *p, u8 *spc)
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| 382 | {
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| 383 | const char *ret = trace_seq_buffer_ptr(p);
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| 384 |
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| 385 | trace_seq_printf(p, "specific=%*ph", 24, spc);
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| 386 | trace_seq_putc(p, 0);
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| 387 | return ret;
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| 388 | }
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| 389 |
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| 390 | const char *nvmet_trace_parse_fabrics_cmd(struct trace_seq *p,
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| 391 | u8 fctype, u8 *spc)
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| 392 | {
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| 393 | switch (fctype) {
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| 394 | case nvme_fabrics_type_property_set:
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| 395 | return nvmet_trace_fabrics_property_set(p, spc);
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| 396 | case nvme_fabrics_type_connect:
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| 397 | return nvmet_trace_fabrics_connect(p, spc);
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| 398 | case nvme_fabrics_type_property_get:
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| 399 | return nvmet_trace_fabrics_property_get(p, spc);
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| 400 | case nvme_fabrics_type_auth_send:
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| 401 | return nvmet_trace_fabrics_auth_send(p, spc);
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| 402 | case nvme_fabrics_type_auth_receive:
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| 403 | return nvmet_trace_fabrics_auth_receive(p, spc);
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| 404 | default:
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| 405 | return nvmet_trace_fabrics_common(p, spc);
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| 406 | }
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| 407 | }
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| 408 |
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| 409 | const char *nvmet_trace_disk_name(struct trace_seq *p, char *name)
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| 410 | {
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| 411 | const char *ret = trace_seq_buffer_ptr(p);
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| 412 |
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| 413 | if (*name)
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| 414 | trace_seq_printf(p, "disk=%s, ", name);
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| 415 | trace_seq_putc(p, 0);
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| 416 |
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| 417 | return ret;
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| 418 | }
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| 419 |
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| 420 | const char *nvmet_trace_ctrl_id(struct trace_seq *p, u16 ctrl_id)
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| 421 | {
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| 422 | const char *ret = trace_seq_buffer_ptr(p);
|
| 423 |
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| 424 | |
| 425 | * XXX: We don't know the controller instance before executing the
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| 426 | * connect command itself because the connect command for the admin
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| 427 | * queue will not provide the cntlid which will be allocated in this
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| 428 | * command. In case of io queues, the controller instance will be
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| 429 | * mapped by the extra data of the connect command.
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| 430 | * If we can know the extra data of the connect command in this stage,
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| 431 | * we can update this print statement later.
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| 432 |
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| 433 | if (ctrl_id)
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| 434 | trace_seq_printf(p, "%d", ctrl_id);
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| 435 | else
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| 436 | trace_seq_printf(p, "_");
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| 437 | trace_seq_putc(p, 0);
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| 438 |
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| 439 | return ret;
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| 440 | }
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| 441 |
|