From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from canpmsgout01.his.huawei.com (canpmsgout01.his.huawei.com [113.46.200.216]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 975BB470428; Thu, 27 Aug 2026 14:04:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=113.46.200.216 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787839508; cv=none; b=FVzIgt3nT2/if37dT8F+lz+iB5x7fuRUfQbu9/EDJnV/1VXtz26bn9zSEsLpl5ag1QSZxu8Ix6lgtEiQgarQ+DNzkHnEenjYZLQ1SS9CsC4HtESA1s4uLo2am36X2gv2QoQj8PUTT1PWRNZpRqMMHMSVyZ0bup6091utKn0IrfU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787839508; c=relaxed/simple; bh=x9FZNjE7BK0FM5fHzk/ozdzgy/O26/2/l/qXJTILNJs=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=XJPaf/KoRcP/urt2YRXjygtadX42wd5HiESrnmRuwl72UU9qRuhK3ZQBdS5i4OKM8TUbcA3ypwnb+cxHkNKr4PW03TSiX+U2EPgUTNrGbFzRYgYM6ZLU2Xjn+7BgeJdC7wd33vdzKAckyOLrEQf/+iFYYt71azuC7wjJuXt3Z1o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b=v0A8fK6v; arc=none smtp.client-ip=113.46.200.216 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b="v0A8fK6v" dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=cALhk2fAo3M+cttMMDY+eJtrD8Y4RiB0LPwzsD3+JJM=; b=v0A8fK6vjKS7Tk4qOlSfQtq+Cn70IcL+0VqtyZPevHjVxsPUQCgmNNEtu5kImS9NopZ+XGtWN 9d6I8RqY6oQBSeO4gk1eX408k7EBZ4+ydorJamDzmy1KaTPFq36q6x5ILdSrrN5AU5HHt2KXowi EDckLEMWGXLGDHq7c6/yBiQ= Received: from mail.maildlp.com (unknown [172.19.163.0]) by canpmsgout01.his.huawei.com (SkyGuard) with ESMTPS id 4hW2zf3bHFz1T4Fq; Thu, 27 Aug 2026 21:53:34 +0800 (CST) Received: from whupemo200004.china.huawei.com (unknown [7.152.184.18]) by mail.maildlp.com (Postfix) with ESMTPS id C13B040537; Thu, 27 Aug 2026 22:04:47 +0800 (CST) Received: from huawei.com (10.50.163.32) by whupemo200004.china.huawei.com (7.152.184.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45; Thu, 27 Aug 2026 22:04:45 +0800 From: Sizhe Liu To: , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , Subject: [PATCH v2 1/8] perf hisi-ptt: Abstract trace data buf and offset Date: Thu, 27 Aug 2026 22:04:35 +0800 Message-ID: <20260827140442.2031128-2-liusizhe5@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20260827140442.2031128-1-liusizhe5@huawei.com> References: <20260827140442.2031128-1-liusizhe5@huawei.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: kwepems200002.china.huawei.com (7.221.188.68) To whupemo200004.china.huawei.com (7.152.184.18) Abstract the base address, current offset, length and packet type of analysing trace data into structure hisi_ptt_pkt_buf and move the step of current offset into the corresponding functions. Signed-off-by: Sizhe Liu --- .../hisi-ptt-decoder/hisi-ptt-pkt-decoder.c | 42 +++++++++---------- .../hisi-ptt-decoder/hisi-ptt-pkt-decoder.h | 9 +++- tools/perf/util/hisi-ptt.c | 20 ++++----- 3 files changed, 37 insertions(+), 34 deletions(-) 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 72a877fd7236..ef72223d3854 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 @@ -75,16 +75,17 @@ static const char * const hisi_ptt_4dw_pkt_field_name[] = { [HISI_PTT_4DW_HEAD3] = "Header DW3", }; -static void hisi_ptt_print_pkt(const unsigned char *buf, int pos, const char *desc) +static void hisi_ptt_print_pkt(struct hisi_ptt_pkt_buf *pkt_buf, + const char *desc) { const char *color = PERF_COLOR_BLUE; uint8_t byte; uint32_t dw; int i; - dw = get_unaligned_le32(buf + pos); + dw = get_unaligned_le32(pkt_buf->buf + pkt_buf->pos); printf("."); - color_fprintf(stdout, color, " %08x: ", pos); + color_fprintf(stdout, color, " %08zx: ", pkt_buf->pos); for (i = 0; i < HISI_PTT_FIELD_LENGTH; i++) { byte = (dw >> (24 - i * 8)) & 0xFF; color_fprintf(stdout, color, "%02x ", byte); @@ -92,36 +93,36 @@ static void hisi_ptt_print_pkt(const unsigned char *buf, int pos, const char *de for (i = 0; i < HISI_PTT_MAX_SPACE_LEN; i++) color_fprintf(stdout, color, " "); color_fprintf(stdout, color, " %s\n", desc); + pkt_buf->pos += HISI_PTT_FIELD_LENGTH; } -static int hisi_ptt_8dw_pkt_desc(const unsigned char *buf, int pos) +static int hisi_ptt_8dw_pkt_desc(struct hisi_ptt_pkt_buf *pkt_buf) { int i; for (i = 0; i < HISI_PTT_8DW_TYPE_MAX; i++) { /* Do not show 8DW check field and reserved fields */ if (i == HISI_PTT_8DW_CHK_AND_RSV0 || i == HISI_PTT_8DW_RSV1) { - pos += HISI_PTT_FIELD_LENGTH; + pkt_buf->pos += HISI_PTT_FIELD_LENGTH; continue; } - hisi_ptt_print_pkt(buf, pos, hisi_ptt_8dw_pkt_field_name[i]); - pos += HISI_PTT_FIELD_LENGTH; + hisi_ptt_print_pkt(pkt_buf, hisi_ptt_8dw_pkt_field_name[i]); } return hisi_ptt_pkt_size[HISI_PTT_8DW_PKT]; } -static void hisi_ptt_4dw_print_dw0(const unsigned char *buf, int pos) +static void hisi_ptt_4dw_print_dw0(struct hisi_ptt_pkt_buf *pkt_buf) { const char *color = PERF_COLOR_BLUE; uint8_t byte; uint32_t dw; int i; - dw = get_unaligned_le32(buf + pos); + dw = get_unaligned_le32(pkt_buf->buf + pkt_buf->pos); printf("."); - color_fprintf(stdout, color, " %08x: ", pos); + color_fprintf(stdout, color, " %08zx: ", pkt_buf->pos); for (i = 0; i < HISI_PTT_FIELD_LENGTH; i++) { byte = (dw >> (24 - i * 8)) & 0xFF; color_fprintf(stdout, color, "%02x ", byte); @@ -139,27 +140,26 @@ static void hisi_ptt_4dw_print_dw0(const unsigned char *buf, int pos) "SO", FIELD_GET(HISI_PTT_HEAD0_4DW_SO, dw), "Length", FIELD_GET(HISI_PTT_HEAD0_4DW_LEN, dw), "Time", FIELD_GET(HISI_PTT_HEAD0_4DW_TIME, dw)); + + pkt_buf->pos += HISI_PTT_FIELD_LENGTH; } -static int hisi_ptt_4dw_pkt_desc(const unsigned char *buf, int pos) +static int hisi_ptt_4dw_pkt_desc(struct hisi_ptt_pkt_buf *pkt_buf) { int i; - hisi_ptt_4dw_print_dw0(buf, pos); - pos += HISI_PTT_FIELD_LENGTH; + hisi_ptt_4dw_print_dw0(pkt_buf); - for (i = 0; i < HISI_PTT_4DW_TYPE_MAX; i++) { - hisi_ptt_print_pkt(buf, pos, hisi_ptt_4dw_pkt_field_name[i]); - pos += HISI_PTT_FIELD_LENGTH; - } + for (i = 0; i < HISI_PTT_4DW_TYPE_MAX; i++) + hisi_ptt_print_pkt(pkt_buf, hisi_ptt_4dw_pkt_field_name[i]); return hisi_ptt_pkt_size[HISI_PTT_4DW_PKT]; } -int hisi_ptt_pkt_desc(const unsigned char *buf, int pos, enum hisi_ptt_pkt_type type) +int hisi_ptt_pkt_desc(struct hisi_ptt_pkt_buf *pkt_buf) { - if (type == HISI_PTT_8DW_PKT) - return hisi_ptt_8dw_pkt_desc(buf, pos); + if (pkt_buf->pkt_type == HISI_PTT_8DW_PKT) + return hisi_ptt_8dw_pkt_desc(pkt_buf); - return hisi_ptt_4dw_pkt_desc(buf, pos); + return hisi_ptt_4dw_pkt_desc(pkt_buf); } 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 3b349fcc24ae..6747878b030e 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 @@ -38,6 +38,13 @@ static int hisi_ptt_pkt_size[] = { [HISI_PTT_8DW_PKT] = 32, }; -int hisi_ptt_pkt_desc(const unsigned char *buf, int pos, enum hisi_ptt_pkt_type type); +struct hisi_ptt_pkt_buf { + const unsigned char *buf; + size_t pos; + size_t len; + enum hisi_ptt_pkt_type pkt_type; +}; + +int hisi_ptt_pkt_desc(struct hisi_ptt_pkt_buf *pkt_buf); #endif diff --git a/tools/perf/util/hisi-ptt.c b/tools/perf/util/hisi-ptt.c index e73c57f9e8a4..ea659947c27f 100644 --- a/tools/perf/util/hisi-ptt.c +++ b/tools/perf/util/hisi-ptt.c @@ -57,22 +57,18 @@ static void hisi_ptt_dump(struct hisi_ptt *ptt __maybe_unused, unsigned char *buf, size_t len) { const char *color = PERF_COLOR_BLUE; - enum hisi_ptt_pkt_type type; - size_t pos = 0; - int pkt_len; + struct hisi_ptt_pkt_buf pkt_buf; - type = hisi_ptt_check_packet_type(buf, len); - len = round_down(len, hisi_ptt_pkt_size[type]); + pkt_buf.buf = buf; + pkt_buf.pos = 0; + pkt_buf.pkt_type = hisi_ptt_check_packet_type(buf, len); + pkt_buf.len = round_down(len, hisi_ptt_pkt_size[pkt_buf.pkt_type]); color_fprintf(stdout, color, ". ... HISI PTT data: size %zu bytes\n", - len); + pkt_buf.len); - while (len > 0) { - pkt_len = hisi_ptt_pkt_desc(buf, pos, type); - if (!pkt_len) + while (pkt_buf.pos < pkt_buf.len) { + if (!hisi_ptt_pkt_desc(&pkt_buf)) color_fprintf(stdout, color, " Bad packet!\n"); - - pos += pkt_len; - len -= pkt_len; } } -- 2.33.0