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-rw-r--r--drivers/nvme/host/trace.c357
1 files changed, 357 insertions, 0 deletions
diff --git a/drivers/nvme/host/trace.c b/drivers/nvme/host/trace.c
new file mode 100644
index 0000000000..1c36fcedea
--- /dev/null
+++ b/drivers/nvme/host/trace.c
@@ -0,0 +1,357 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NVM Express device driver tracepoints
+ * Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH
+ */
+
+#include <asm/unaligned.h>
+#include "trace.h"
+
+static const char *nvme_trace_delete_sq(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u16 sqid = get_unaligned_le16(cdw10);
+
+ trace_seq_printf(p, "sqid=%u", sqid);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_create_sq(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u16 sqid = get_unaligned_le16(cdw10);
+ u16 qsize = get_unaligned_le16(cdw10 + 2);
+ u16 sq_flags = get_unaligned_le16(cdw10 + 4);
+ u16 cqid = get_unaligned_le16(cdw10 + 6);
+
+
+ trace_seq_printf(p, "sqid=%u, qsize=%u, sq_flags=0x%x, cqid=%u",
+ sqid, qsize, sq_flags, cqid);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_delete_cq(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u16 cqid = get_unaligned_le16(cdw10);
+
+ trace_seq_printf(p, "cqid=%u", cqid);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_create_cq(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u16 cqid = get_unaligned_le16(cdw10);
+ u16 qsize = get_unaligned_le16(cdw10 + 2);
+ u16 cq_flags = get_unaligned_le16(cdw10 + 4);
+ u16 irq_vector = get_unaligned_le16(cdw10 + 6);
+
+ trace_seq_printf(p, "cqid=%u, qsize=%u, cq_flags=0x%x, irq_vector=%u",
+ cqid, qsize, cq_flags, irq_vector);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_admin_identify(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u8 cns = cdw10[0];
+ u16 ctrlid = get_unaligned_le16(cdw10 + 2);
+
+ trace_seq_printf(p, "cns=%u, ctrlid=%u", cns, ctrlid);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_admin_set_features(struct trace_seq *p,
+ u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u8 fid = cdw10[0];
+ u8 sv = cdw10[3] & 0x8;
+ u32 cdw11 = get_unaligned_le32(cdw10 + 4);
+
+ trace_seq_printf(p, "fid=0x%x, sv=0x%x, cdw11=0x%x", fid, sv, cdw11);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_admin_get_features(struct trace_seq *p,
+ u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u8 fid = cdw10[0];
+ u8 sel = cdw10[1] & 0x7;
+ u32 cdw11 = get_unaligned_le32(cdw10 + 4);
+
+ trace_seq_printf(p, "fid=0x%x, sel=0x%x, cdw11=0x%x", fid, sel, cdw11);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_get_lba_status(struct trace_seq *p,
+ u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u64 slba = get_unaligned_le64(cdw10);
+ u32 mndw = get_unaligned_le32(cdw10 + 8);
+ u16 rl = get_unaligned_le16(cdw10 + 12);
+ u8 atype = cdw10[15];
+
+ trace_seq_printf(p, "slba=0x%llx, mndw=0x%x, rl=0x%x, atype=%u",
+ slba, mndw, rl, atype);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_admin_format_nvm(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u8 lbaf = cdw10[0] & 0xF;
+ u8 mset = (cdw10[0] >> 4) & 0x1;
+ u8 pi = (cdw10[0] >> 5) & 0x7;
+ u8 pil = cdw10[1] & 0x1;
+ u8 ses = (cdw10[1] >> 1) & 0x7;
+
+ trace_seq_printf(p, "lbaf=%u, mset=%u, pi=%u, pil=%u, ses=%u",
+ lbaf, mset, pi, pil, ses);
+
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_read_write(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u64 slba = get_unaligned_le64(cdw10);
+ u16 length = get_unaligned_le16(cdw10 + 8);
+ u16 control = get_unaligned_le16(cdw10 + 10);
+ u32 dsmgmt = get_unaligned_le32(cdw10 + 12);
+ u32 reftag = get_unaligned_le32(cdw10 + 16);
+
+ trace_seq_printf(p,
+ "slba=%llu, len=%u, ctrl=0x%x, dsmgmt=%u, reftag=%u",
+ slba, length, control, dsmgmt, reftag);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_dsm(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+
+ trace_seq_printf(p, "nr=%u, attributes=%u",
+ get_unaligned_le32(cdw10),
+ get_unaligned_le32(cdw10 + 4));
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_zone_mgmt_send(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u64 slba = get_unaligned_le64(cdw10);
+ u8 zsa = cdw10[12];
+ u8 all = cdw10[13];
+
+ trace_seq_printf(p, "slba=%llu, zsa=%u, all=%u", slba, zsa, all);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_zone_mgmt_recv(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u64 slba = get_unaligned_le64(cdw10);
+ u32 numd = get_unaligned_le32(cdw10 + 8);
+ u8 zra = cdw10[12];
+ u8 zrasf = cdw10[13];
+ u8 pr = cdw10[14];
+
+ trace_seq_printf(p, "slba=%llu, numd=%u, zra=%u, zrasf=%u, pr=%u",
+ slba, numd, zra, zrasf, pr);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *nvme_trace_common(struct trace_seq *p, u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+
+ trace_seq_printf(p, "cdw10=%*ph", 24, cdw10);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+const char *nvme_trace_parse_admin_cmd(struct trace_seq *p,
+ u8 opcode, u8 *cdw10)
+{
+ switch (opcode) {
+ case nvme_admin_delete_sq:
+ return nvme_trace_delete_sq(p, cdw10);
+ case nvme_admin_create_sq:
+ return nvme_trace_create_sq(p, cdw10);
+ case nvme_admin_delete_cq:
+ return nvme_trace_delete_cq(p, cdw10);
+ case nvme_admin_create_cq:
+ return nvme_trace_create_cq(p, cdw10);
+ case nvme_admin_identify:
+ return nvme_trace_admin_identify(p, cdw10);
+ case nvme_admin_set_features:
+ return nvme_trace_admin_set_features(p, cdw10);
+ case nvme_admin_get_features:
+ return nvme_trace_admin_get_features(p, cdw10);
+ case nvme_admin_get_lba_status:
+ return nvme_trace_get_lba_status(p, cdw10);
+ case nvme_admin_format_nvm:
+ return nvme_trace_admin_format_nvm(p, cdw10);
+ default:
+ return nvme_trace_common(p, cdw10);
+ }
+}
+
+const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p,
+ u8 opcode, u8 *cdw10)
+{
+ switch (opcode) {
+ case nvme_cmd_read:
+ case nvme_cmd_write:
+ case nvme_cmd_write_zeroes:
+ case nvme_cmd_zone_append:
+ return nvme_trace_read_write(p, cdw10);
+ case nvme_cmd_dsm:
+ return nvme_trace_dsm(p, cdw10);
+ case nvme_cmd_zone_mgmt_send:
+ return nvme_trace_zone_mgmt_send(p, cdw10);
+ case nvme_cmd_zone_mgmt_recv:
+ return nvme_trace_zone_mgmt_recv(p, cdw10);
+ default:
+ return nvme_trace_common(p, cdw10);
+ }
+}
+
+static const char *nvme_trace_fabrics_property_set(struct trace_seq *p, u8 *spc)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u8 attrib = spc[0];
+ u32 ofst = get_unaligned_le32(spc + 4);
+ u64 value = get_unaligned_le64(spc + 8);
+
+ trace_seq_printf(p, "attrib=%u, ofst=0x%x, value=0x%llx",
+ attrib, ofst, value);
+ trace_seq_putc(p, 0);
+ return ret;
+}
+
+static const char *nvme_trace_fabrics_connect(struct trace_seq *p, u8 *spc)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u16 recfmt = get_unaligned_le16(spc);
+ u16 qid = get_unaligned_le16(spc + 2);
+ u16 sqsize = get_unaligned_le16(spc + 4);
+ u8 cattr = spc[6];
+ u32 kato = get_unaligned_le32(spc + 8);
+
+ trace_seq_printf(p, "recfmt=%u, qid=%u, sqsize=%u, cattr=%u, kato=%u",
+ recfmt, qid, sqsize, cattr, kato);
+ trace_seq_putc(p, 0);
+ return ret;
+}
+
+static const char *nvme_trace_fabrics_property_get(struct trace_seq *p, u8 *spc)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u8 attrib = spc[0];
+ u32 ofst = get_unaligned_le32(spc + 4);
+
+ trace_seq_printf(p, "attrib=%u, ofst=0x%x", attrib, ofst);
+ trace_seq_putc(p, 0);
+ return ret;
+}
+
+static const char *nvme_trace_fabrics_auth_send(struct trace_seq *p, u8 *spc)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u8 spsp0 = spc[1];
+ u8 spsp1 = spc[2];
+ u8 secp = spc[3];
+ u32 tl = get_unaligned_le32(spc + 4);
+
+ trace_seq_printf(p, "spsp0=%02x, spsp1=%02x, secp=%02x, tl=%u",
+ spsp0, spsp1, secp, tl);
+ trace_seq_putc(p, 0);
+ return ret;
+}
+
+static const char *nvme_trace_fabrics_auth_receive(struct trace_seq *p, u8 *spc)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u8 spsp0 = spc[1];
+ u8 spsp1 = spc[2];
+ u8 secp = spc[3];
+ u32 al = get_unaligned_le32(spc + 4);
+
+ trace_seq_printf(p, "spsp0=%02x, spsp1=%02x, secp=%02x, al=%u",
+ spsp0, spsp1, secp, al);
+ trace_seq_putc(p, 0);
+ return ret;
+}
+
+static const char *nvme_trace_fabrics_common(struct trace_seq *p, u8 *spc)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+
+ trace_seq_printf(p, "specific=%*ph", 24, spc);
+ trace_seq_putc(p, 0);
+ return ret;
+}
+
+const char *nvme_trace_parse_fabrics_cmd(struct trace_seq *p,
+ u8 fctype, u8 *spc)
+{
+ switch (fctype) {
+ case nvme_fabrics_type_property_set:
+ return nvme_trace_fabrics_property_set(p, spc);
+ case nvme_fabrics_type_connect:
+ return nvme_trace_fabrics_connect(p, spc);
+ case nvme_fabrics_type_property_get:
+ return nvme_trace_fabrics_property_get(p, spc);
+ case nvme_fabrics_type_auth_send:
+ return nvme_trace_fabrics_auth_send(p, spc);
+ case nvme_fabrics_type_auth_receive:
+ return nvme_trace_fabrics_auth_receive(p, spc);
+ default:
+ return nvme_trace_fabrics_common(p, spc);
+ }
+}
+
+const char *nvme_trace_disk_name(struct trace_seq *p, char *name)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+
+ if (*name)
+ trace_seq_printf(p, "disk=%s, ", name);
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+EXPORT_TRACEPOINT_SYMBOL_GPL(nvme_sq);