[PATCH 08/10] perf hisi-ptt: Add parsing of supported message types
From: Sizhe Liu
Date: Thu Jun 04 2026 - 03:59:30 EST
Parse TLP message types from Header DW0 Format and Type fields for
both 4DW and 8DW formats, classifying packets into:
- MWr (Posted Memory Write)
- Msg (Posted Message)
- Atom (Non-Posted Atomic)
- IO (Non-Posted IO)
- CFG (Non-Posted Configuration)
- CPL (Completion)
Support for those message types depends on the hisi_ptt hardware.
The parsed message type is stored in pkt_buf->pkt_msg_type and will
be used by subsequent patches to select the correct field layout for
DW2 and DW3 printing.
Signed-off-by: Sizhe Liu <liusizhe5@xxxxxxxxxx>
---
.../hisi-ptt-decoder/hisi-ptt-pkt-decoder.c | 65 +++++++++++++++++++
.../hisi-ptt-decoder/hisi-ptt-pkt-decoder.h | 12 ++++
tools/perf/util/hisi-ptt.c | 1 +
3 files changed, 78 insertions(+)
diff --git a/tools/perf/util/hisi-ptt-decoder/hisi-ptt-pkt-decoder.c b/tools/perf/util/hisi-ptt-decoder/hisi-ptt-pkt-decoder.c
index 9ec84d398cc1..59ab8ec3a03d 100644
--- a/tools/perf/util/hisi-ptt-decoder/hisi-ptt-pkt-decoder.c
+++ b/tools/perf/util/hisi-ptt-decoder/hisi-ptt-pkt-decoder.c
@@ -78,6 +78,37 @@ static const char * const hisi_ptt_4dw_pkt_field_name[] = {
[HISI_PTT_4DW_HEAD3] = "Header DW3",
};
+static bool hisi_ptt_is_mwr_tlp(uint32_t format, uint32_t type)
+{
+ return (format == 0x2 || format == 0x3) && (type == 0);
+}
+
+static bool hisi_ptt_is_msg_tlp(uint32_t format, uint32_t type)
+{
+ return (format == 0x1 || format == 0x3) && ((type & 0x10) != 0);
+}
+
+static bool hisi_ptt_is_io_tlp(uint32_t format, uint32_t type)
+{
+ return (format == 0 || format == 0x2) && (type == 0x2);
+}
+
+static bool hisi_ptt_is_atomic_tlp(uint32_t format, uint32_t type)
+{
+ return (format == 0x2 || format == 0x3) &&
+ (type == 0xc || type == 0xd || type == 0xe);
+}
+
+static bool hisi_ptt_is_cfg_tlp(uint32_t format, uint32_t type)
+{
+ return (format == 0 || format == 0x2) && (type == 0x4 || type == 0x5);
+}
+
+static bool hisi_ptt_is_cpl_tlp(uint32_t format, uint32_t type)
+{
+ return (format == 0 || format == 0x2) && (type == 0xa || type == 0xb);
+}
+
union hisi_ptt_field_data {
/* Header DW0 for 4DW format */
struct {
@@ -90,9 +121,41 @@ union hisi_ptt_field_data {
uint32_t type : 5;
uint32_t format : 2;
} dw0_4dw;
+ /* Header DW0 for 8DW format */
+ struct {
+ uint32_t others : 24;
+ uint32_t type : 5;
+ uint32_t format : 3;
+ } dw0_8dw;
uint32_t value;
};
+static int hisi_ptt_parse_pkt_msg_type(union hisi_ptt_field_data dw,
+ enum hisi_ptt_pkt_type pkt_type)
+{
+ uint32_t format, type;
+
+ format = (pkt_type == HISI_PTT_4DW_PKT) ? dw.dw0_4dw.format :
+ dw.dw0_8dw.format;
+ type = (pkt_type == HISI_PTT_4DW_PKT) ? dw.dw0_4dw.type :
+ dw.dw0_8dw.type;
+
+ if (hisi_ptt_is_mwr_tlp(format, type))
+ return HISI_PTT_PKT_TYPE_MWR;
+ else if (hisi_ptt_is_msg_tlp(format, type))
+ return HISI_PTT_PKT_TYPE_MSG;
+ else if (hisi_ptt_is_atomic_tlp(format, type))
+ return HISI_PTT_PKT_TYPE_ATOM;
+ else if (hisi_ptt_is_io_tlp(format, type))
+ return HISI_PTT_PKT_TYPE_IO;
+ else if (hisi_ptt_is_cfg_tlp(format, type))
+ return HISI_PTT_PKT_TYPE_CFG;
+ else if (hisi_ptt_is_cpl_tlp(format, type))
+ return HISI_PTT_PKT_TYPE_CPL;
+
+ return HISI_PTT_PKT_TYPE_UNKNOWN;
+}
+
static void hisi_ptt_print_raw_record(size_t offset, uint32_t value)
{
const char *color = PERF_COLOR_BLUE;
@@ -128,6 +191,8 @@ static void hisi_ptt_print_head0(struct hisi_ptt_pkt_buf *pkt_buf)
union hisi_ptt_field_data dw;
dw.value = le32_to_cpu(*(__le32 *)(pkt_buf->buf + pkt_buf->pos));
+ pkt_buf->pkt_msg_type = hisi_ptt_parse_pkt_msg_type(dw,
+ pkt_buf->pkt_type);
hisi_ptt_print_raw_record(pkt_buf->pos, dw.value);
if (pkt_buf->pkt_type == HISI_PTT_4DW_PKT)
diff --git a/tools/perf/util/hisi-ptt-decoder/hisi-ptt-pkt-decoder.h b/tools/perf/util/hisi-ptt-decoder/hisi-ptt-pkt-decoder.h
index 316f24f01068..3fdad34fe400 100644
--- a/tools/perf/util/hisi-ptt-decoder/hisi-ptt-pkt-decoder.h
+++ b/tools/perf/util/hisi-ptt-decoder/hisi-ptt-pkt-decoder.h
@@ -26,11 +26,23 @@ static int hisi_ptt_pkt_size[] = {
[HISI_PTT_8DW_PKT] = 32,
};
+enum hisi_ptt_pkt_msg_type {
+ HISI_PTT_PKT_TYPE_UNKNOWN, /* Types do not support analysis */
+ HISI_PTT_PKT_TYPE_MWR, /* P-(MemWr) */
+ HISI_PTT_PKT_TYPE_MSG, /* P-(Message) */
+ HISI_PTT_PKT_TYPE_ATOM, /* NP-(Atomic) */
+ HISI_PTT_PKT_TYPE_IO, /* NP-(IO) */
+ HISI_PTT_PKT_TYPE_CFG, /* NP-(CFG) */
+ HISI_PTT_PKT_TYPE_CPL, /* CPL-(CPL) */
+ HISI_PTT_PKT_TYPE_MAX
+};
+
struct hisi_ptt_pkt_buf {
const unsigned char *buf;
size_t pos;
size_t len;
enum hisi_ptt_pkt_type pkt_type;
+ enum hisi_ptt_pkt_msg_type pkt_msg_type;
};
int hisi_ptt_pkt_desc(struct hisi_ptt_pkt_buf *pkt_buf);
diff --git a/tools/perf/util/hisi-ptt.c b/tools/perf/util/hisi-ptt.c
index 4efda3f3e5f9..e321f393601b 100644
--- a/tools/perf/util/hisi-ptt.c
+++ b/tools/perf/util/hisi-ptt.c
@@ -55,6 +55,7 @@ static void hisi_ptt_dump(struct hisi_ptt *ptt __maybe_unused,
pkt_buf.pos = 0;
pkt_buf.pkt_type = hisi_ptt_check_packet_type(buf);
pkt_buf.len = round_down(len, hisi_ptt_pkt_size[pkt_buf.pkt_type]);
+ pkt_buf.pkt_msg_type = HISI_PTT_PKT_TYPE_UNKNOWN;
color_fprintf(stdout, color, ". ... HISI PTT data: size %zu bytes\n",
pkt_buf.len);
--
2.33.0