[PATCH v2 1/2] nvmet: add tracing of zns commands

[Guixin Liu]

Add nvme_cmd_zone_append, nvme_cmd_zone_mgmt_send and
nvme_cmd_zone_mgmt_recv parse to nvme target tracing.

Signed-off-by: Guixin Liu <kanie at linux.alibaba.com>
---
 drivers/nvme/target/trace.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/nvme/target/trace.c b/drivers/nvme/target/trace.c
index 657bd31841b2..6604e5fe57d8 100644
--- a/drivers/nvme/target/trace.c
+++ b/drivers/nvme/target/trace.c
@@ -119,6 +119,35 @@ const char *nvmet_trace_parse_admin_cmd(struct trace_seq *p,
 	}
 }
 
+static const char *nvmet_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 *nvmet_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;
+}
+
 const char *nvmet_trace_parse_nvm_cmd(struct trace_seq *p,
 		u8 opcode, u8 *cdw10)
 {
@@ -126,9 +155,14 @@ const char *nvmet_trace_parse_nvm_cmd(struct trace_seq *p,
 	case nvme_cmd_read:
 	case nvme_cmd_write:
 	case nvme_cmd_write_zeroes:
+	case nvme_cmd_zone_append:
 		return nvmet_trace_read_write(p, cdw10);
 	case nvme_cmd_dsm:
 		return nvmet_trace_dsm(p, cdw10);
+	case nvme_cmd_zone_mgmt_send:
+		return nvmet_trace_zone_mgmt_send(p, cdw10);
+	case nvme_cmd_zone_mgmt_recv:
+		return nvmet_trace_zone_mgmt_recv(p, cdw10);
 	default:
 		return nvmet_trace_common(p, cdw10);
 	}
-- 
2.43.0