Commit 177b06ed authored by Minwoo Im's avatar Minwoo Im Committed by Sagi Grimberg
Browse files

nvme: trace: parse Get LBA Status command in detail 



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: default avatarMinwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
parent a5ef7572

drivers/nvme/host/trace.c

+18 −0
Original line number Diff line number Diff line
@@ -86,6 +86,22 @@ static const char *nvme_trace_admin_get_features(struct trace_seq *p, 
	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_read_write(struct trace_seq *p, u8 *cdw10)

{

	const char *ret = trace_seq_buffer_ptr(p);
@@ -141,6 +157,8 @@ const char *nvme_trace_parse_admin_cmd(struct trace_seq *p, 
		return nvme_trace_admin_identify(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);

	default:

		return nvme_trace_common(p, cdw10);

	}