// SPDX-License-Identifier: GPL-2.0-only
/*
* intel_pt_pkt_decoder.c: Intel Processor Trace support
* Copyright (c) 2013-2014, Intel Corporation.
*/
#include <stdio.h>
#include <string.h>
#include <endian.h>
#include <byteswap.h>
#include <linux/kernel.h>
#include <linux/compiler.h>
#include <linux/unaligned.h>
#include "intel-pt-pkt-decoder.h"
#define BIT(n) (1 << (n))
#define BIT63 ((uint64_t)1 << 63)
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define memcpy_le64(d, s, n) do { \
memcpy((d), (s), (n)); \
*(d) = le64_to_cpu(*(d)); \
} while (0)
#else
#define memcpy_le64 memcpy
#endif
static const char * const packet_name[] = {
[INTEL_PT_BAD] = "Bad Packet!",
[INTEL_PT_PAD] = "PAD",
[INTEL_PT_TNT] = "TNT",
[INTEL_PT_TIP_PGD] = "TIP.PGD",
[INTEL_PT_TIP_PGE] = "TIP.PGE",
[INTEL_PT_TSC] = "TSC",
[INTEL_PT_TMA] = "TMA",
[INTEL_PT_MODE_EXEC] = "MODE.Exec",
[INTEL_PT_MODE_TSX] = "MODE.TSX",
[INTEL_PT_MTC] = "MTC",
[INTEL_PT_TIP] = "TIP",
[INTEL_PT_FUP] = "FUP",
[INTEL_PT_CYC] = "CYC",
[INTEL_PT_VMCS] = "VMCS",
[INTEL_PT_PSB] = "PSB",
[INTEL_PT_PSBEND] = "PSBEND",
[INTEL_PT_CBR] = "CBR",
[INTEL_PT_TRACESTOP] = "TraceSTOP",
[INTEL_PT_PIP] = "PIP",
[INTEL_PT_OVF] = "OVF",
[INTEL_PT_MNT] = "MNT",
[INTEL_PT_PTWRITE] = "PTWRITE",
[INTEL_PT_PTWRITE_IP] = "PTWRITE",
[INTEL_PT_EXSTOP] = "EXSTOP",
[INTEL_PT_EXSTOP_IP] = "EXSTOP",
[INTEL_PT_MWAIT] = "MWAIT",
[INTEL_PT_PWRE] = "PWRE",
[INTEL_PT_PWRX] = "PWRX",
[INTEL_PT_BBP] = "BBP",
[INTEL_PT_BIP] = "BIP",
[INTEL_PT_BEP] = "BEP",
[INTEL_PT_BEP_IP] = "BEP",
[INTEL_PT_CFE] = "CFE",
[INTEL_PT_CFE_IP] = "CFE",
[INTEL_PT_EVD] = "EVD",
};
const char *intel_pt_pkt_name(enum intel_pt_pkt_type type)
{
return packet_name[type];
}
static int intel_pt_get_long_tnt(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
uint64_t payload;
int count;
if (len < 8)
return INTEL_PT_NEED_MORE_BYTES;
payload = get_unaligned_le64(buf);
for (count = 47; count; count--) {
if (payload & BIT63)
break;
payload <<= 1;
}
packet->type = INTEL_PT_TNT;
packet->count = count;
packet->payload = payload << 1;
return 8;
}
static int intel_pt_get_pip(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
uint64_t payload = 0;
if (len < 8)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_PIP;
memcpy_le64(&payload, buf + 2, 6);
packet->payload = payload;
return 8;
}
static int intel_pt_get_tracestop(struct intel_pt_pkt *packet)
{
packet->type = INTEL_PT_TRACESTOP;
return 2;
}
static int intel_pt_get_cbr(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 4)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_CBR;
packet->payload = get_unaligned_le16(buf + 2);
return 4;
}
static int intel_pt_get_vmcs(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 7)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_VMCS;
packet->count = 5;
memcpy_le64(&packet->payload, buf + 2, 5);
return 7;
}
static int intel_pt_get_ovf(struct intel_pt_pkt *packet)
{
packet->type = INTEL_PT_OVF;
return 2;
}
static int intel_pt_get_psb(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
int i;
if (len < 16)
return INTEL_PT_NEED_MORE_BYTES;
for (i = 2; i < 16; i += 2) {
if (buf[i] != 2 || buf[i + 1] != 0x82)
return INTEL_PT_BAD_PACKET;
}
packet->type = INTEL_PT_PSB;
return 16;
}
static int intel_pt_get_psbend(struct intel_pt_pkt *packet)
{
packet->type = INTEL_PT_PSBEND;
return 2;
}
static int intel_pt_get_tma(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 7)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_TMA;
packet->payload = buf[2] | (buf[3] << 8);
packet->count = buf[5] | ((buf[6] & BIT(0)) << 8);
return 7;
}
static int intel_pt_get_pad(struct intel_pt_pkt *packet)
{
packet->type = INTEL_PT_PAD;
return 1;
}
static int intel_pt_get_mnt(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 11)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_MNT;
packet->payload = get_unaligned_le64(buf + 3);
return 11;
}
static int intel_pt_get_3byte(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 3)
return INTEL_PT_NEED_MORE_BYTES;
switch (buf[2]) {
case 0x88: /* MNT */
return intel_pt_get_mnt(buf, len, packet);
default:
return INTEL_PT_BAD_PACKET;
}
}
static int intel_pt_get_ptwrite(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
packet->count = (buf[1] >> 5) & 0x3;
packet->type = buf[1] & BIT(7) ? INTEL_PT_PTWRITE_IP :
INTEL_PT_PTWRITE;
switch (packet->count) {
case 0:
if (len < 6)
return INTEL_PT_NEED_MORE_BYTES;
packet->payload = get_unaligned_le32(buf + 2);
return 6;
case 1:
if (len < 10)
return INTEL_PT_NEED_MORE_BYTES;
packet->payload = get_unaligned_le64(buf + 2);
return 10;
default:
return INTEL_PT_BAD_PACKET;
}
}
static int intel_pt_get_exstop(struct intel_pt_pkt *packet)
{
packet->type = INTEL_PT_EXSTOP;
return 2;
}
static int intel_pt_get_exstop_ip(struct intel_pt_pkt *packet)
{
packet->type = INTEL_PT_EXSTOP_IP;
return 2;
}
static int intel_pt_get_mwait(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 10)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_MWAIT;
packet->payload = get_unaligned_le64(buf + 2);
return 10;
}
static int intel_pt_get_pwre(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 4)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_PWRE;
memcpy_le64(&packet->payload, buf + 2, 2);
return 4;
}
static int intel_pt_get_pwrx(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 7)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_PWRX;
memcpy_le64(&packet->payload, buf + 2, 5);
return 7;
}
static int intel_pt_get_bbp(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 3)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_BBP;
packet->count = buf[2] >> 7;
packet->payload = buf[2] & 0x1f;
return 3;
}
static int intel_pt_get_bip_4(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 5)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_BIP;
packet->count = buf[0] >> 3;
memcpy_le64(&packet->payload, buf + 1, 4);
return 5;
}
static int intel_pt_get_bip_8(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 9)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_BIP;
packet->count = buf[0] >> 3;
packet->payload = get_unaligned_le64(buf + 1);
return 9;
}
static int intel_pt_get_bep(size_t len, struct intel_pt_pkt *packet)
{
if (len < 2)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_BEP;
return 2;
}
static int intel_pt_get_bep_ip(size_t len, struct intel_pt_pkt *packet)
{
if (len < 2)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_BEP_IP;
return 2;
}
static int intel_pt_get_cfe(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 4)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = buf[2] & 0x80 ? INTEL_PT_CFE_IP : INTEL_PT_CFE;
packet->count = buf[2] & 0x1f;
packet->payload = buf[3];
return 4;
}
static int intel_pt_get_evd(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 11)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_EVD;
packet->count = buf[2] & 0x3f;
packet->payload = buf[3];
packet->payload = get_unaligned_le64(buf + 3);
return 11;
}
static int intel_pt_get_ext(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 2)
return INTEL_PT_NEED_MORE_BYTES;
if ((buf[1] & 0x1f) == 0x12)
return intel_pt_get_ptwrite(buf, len, packet);
switch (buf[1]) {
case 0xa3: /* Long TNT */
return intel_pt_get_long_tnt(buf, len, packet);
case 0x43: /* PIP */
return intel_pt_get_pip(buf, len, packet);
case 0x83: /* TraceStop */
return intel_pt_get_tracestop(packet);
case 0x03: /* CBR */
return intel_pt_get_cbr(buf, len, packet);
case 0xc8: /* VMCS */
return intel_pt_get_vmcs(buf, len, packet);
case 0xf3: /* OVF */
return intel_pt_get_ovf(packet);
case 0x82: /* PSB */
return intel_pt_get_psb(buf, len, packet);
case 0x23: /* PSBEND */
return intel_pt_get_psbend(packet);
case 0x73: /* TMA */
return intel_pt_get_tma(buf, len, packet);
case 0xC3: /* 3-byte header */
return intel_pt_get_3byte(buf, len, packet);
case 0x62: /* EXSTOP no IP */
return intel_pt_get_exstop(packet);
case 0xE2: /* EXSTOP with IP */
return intel_pt_get_exstop_ip(packet);
case 0xC2: /* MWAIT */
return intel_pt_get_mwait(buf, len, packet);
case 0x22: /* PWRE */
return intel_pt_get_pwre(buf, len, packet);
case 0xA2: /* PWRX */
return intel_pt_get_pwrx(buf, len, packet);
case 0x63: /* BBP */
return intel_pt_get_bbp(buf, len, packet);
case 0x33: /* BEP no IP */
return intel_pt_get_bep(len, packet);
case 0xb3: /* BEP with IP */
return intel_pt_get_bep_ip(len, packet);
case 0x13: /* CFE */
return intel_pt_get_cfe(buf, len, packet);
case 0x53: /* EVD */
return intel_pt_get_evd(buf, len, packet);
default:
return INTEL_PT_BAD_PACKET;
}
}
static int intel_pt_get_short_tnt(unsigned int byte,
struct intel_pt_pkt *packet)
{
int count;
for (count = 6; count; count--) {
if (byte & BIT(7))
break;
byte <<= 1;
}
packet->type = INTEL_PT_TNT;
packet->count = count;
packet->payload = (uint64_t)byte << 57;
return 1;
}
static int intel_pt_get_cyc(unsigned int byte, const unsigned char *buf,
size_t len, struct intel_pt_pkt *packet)
{
unsigned int offs = 1, shift;
uint64_t payload = byte >> 3;
byte >>= 2;
len -= 1;
for (shift = 5; byte & 1; shift += 7) {
if (offs > 9)
return INTEL_PT_BAD_PACKET;
if (len < offs)
return INTEL_PT_NEED_MORE_BYTES;
byte = buf[offs++];
payload |= ((uint64_t)byte >> 1) << shift;
}
packet->type = INTEL_PT_CYC;
packet->payload = payload;
return offs;
}
static int intel_pt_get_ip(enum intel_pt_pkt_type type, unsigned int byte,
const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
int ip_len;
packet->count = byte >> 5;
switch (packet->count) {
case 0:
ip_len = 0;
break;
case 1:
if (len < 3)
return INTEL_PT_NEED_MORE_BYTES;
ip_len = 2;
packet->payload = get_unaligned_le16(buf + 1);
break;
case 2:
if (len < 5)
return INTEL_PT_NEED_MORE_BYTES;
ip_len = 4;
packet->payload = get_unaligned_le32(buf + 1);
break;
case 3:
case 4:
if (len < 7)
return INTEL_PT_NEED_MORE_BYTES;
ip_len = 6;
memcpy_le64(&packet->payload, buf + 1, 6);
break;
case 6:
if (len < 9)
return INTEL_PT_NEED_MORE_BYTES;
ip_len = 8;
packet->payload = get_unaligned_le64(buf + 1);
break;
default:
return INTEL_PT_BAD_PACKET;
}
packet->type = type;
return ip_len + 1;
}
static int intel_pt_get_mode(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 2)
return INTEL_PT_NEED_MORE_BYTES;
switch (buf[1] >> 5) {
case 0:
packet->type = INTEL_PT_MODE_EXEC;
packet->count = buf[1];
switch (buf[1] & 3) {
case 0:
packet->payload = 16;
break;
case 1:
packet->payload = 64;
break;
case 2:
packet->payload = 32;
break;
default:
return INTEL_PT_BAD_PACKET;
}
break;
case 1:
packet->type = INTEL_PT_MODE_TSX;
if ((buf[1] & 3) == 3)
return INTEL_PT_BAD_PACKET;
packet->payload = buf[1] & 3;
break;
default:
return INTEL_PT_BAD_PACKET;
}
return 2;
}
static int intel_pt_get_tsc(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 8)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_TSC;
memcpy_le64(&packet->payload, buf + 1, 7);
return 8;
}
static int intel_pt_get_mtc(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 2)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_MTC;
packet->payload = buf[1];
return 2;
}
static int intel_pt_do_get_packet(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet,
enum intel_pt_pkt_ctx ctx)
{
unsigned int byte;
memset(packet, 0, sizeof(struct intel_pt_pkt));
if (!len)
return INTEL_PT_NEED_MORE_BYTES;
byte = buf[0];
switch (ctx) {
case INTEL_PT_NO_CTX:
break;
case INTEL_PT_BLK_4_CTX:
if ((byte & 0x7) == 4)
return intel_pt_get_bip_4(buf, len, packet);
break;
case INTEL_PT_BLK_8_CTX:
if ((byte & 0x7) == 4)
return intel_pt_get_bip_8(buf, len, packet);
break;
default:
break;
}
if (!(byte & BIT(0))) {
if (byte == 0)
return intel_pt_get_pad(packet);
if (byte == 2)
return intel_pt_get_ext(buf, len, packet);
return intel_pt_get_short_tnt(byte, packet);
}
if ((byte & 2))
return intel_pt_get_cyc(byte, buf, len, packet);
switch (byte & 0x1f) {
case 0x0D:
return intel_pt_get_ip(INTEL_PT_TIP, byte, buf, len, packet);
case 0x11:
return intel_pt_get_ip(INTEL_PT_TIP_PGE, byte, buf, len,
packet);
case 0x01:
return intel_pt_get_ip(INTEL_PT_TIP_PGD, byte, buf, len,
packet);
case 0x1D:
return intel_pt_get_ip(INTEL_PT_FUP, byte, buf, len, packet);
case 0x19:
switch (byte) {
case 0x99:
return intel_pt_get_mode(buf, len, packet);
case 0x19:
return intel_pt_get_tsc(buf, len, packet);
case 0x59:
return intel_pt_get_mtc(buf, len, packet);
default:
return INTEL_PT_BAD_PACKET;
}
default:
return INTEL_PT_BAD_PACKET;
}
}
void intel_pt_upd_pkt_ctx(const struct intel_pt_pkt *packet,
enum intel_pt_pkt_ctx *ctx)
{
switch (packet->type) {
case INTEL_PT_BAD:
case INTEL_PT_PAD:
case INTEL_PT_TSC:
case INTEL_PT_TMA:
case INTEL_PT_MTC:
case INTEL_PT_FUP:
case INTEL_PT_CYC:
case INTEL_PT_CBR:
case INTEL_PT_MNT:
case INTEL_PT_EXSTOP:
case INTEL_PT_EXSTOP_IP:
case INTEL_PT_PWRE:
case INTEL_PT_PWRX:
case INTEL_PT_BIP:
break;
case INTEL_PT_TNT:
case INTEL_PT_TIP:
case INTEL_PT_TIP_PGD:
case INTEL_PT_TIP_PGE:
case INTEL_PT_MODE_EXEC:
case INTEL_PT_MODE_TSX:
case INTEL_PT_PIP:
case INTEL_PT_OVF:
case INTEL_PT_VMCS:
case INTEL_PT_TRACESTOP:
case INTEL_PT_PSB:
case INTEL_PT_PSBEND:
case INTEL_PT_PTWRITE:
case INTEL_PT_PTWRITE_IP:
case INTEL_PT_MWAIT:
case INTEL_PT_BEP:
case INTEL_PT_BEP_IP:
case INTEL_PT_CFE:
case INTEL_PT_CFE_IP:
case INTEL_PT_EVD:
*ctx = INTEL_PT_NO_CTX;
break;
case INTEL_PT_BBP:
if (packet->count)
*ctx = INTEL_PT_BLK_4_CTX;
else
*ctx = INTEL_PT_BLK_8_CTX;
break;
default:
break;
}
}
int intel_pt_get_packet(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet, enum intel_pt_pkt_ctx *ctx)
{
int ret;
ret = intel_pt_do_get_packet(buf, len, packet, *ctx);
if (ret > 0) {
while (ret < 8 && len > (size_t)ret && !buf[ret])
ret += 1;
intel_pt_upd_pkt_ctx(packet, ctx);
}
return ret;
}
int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf,
size_t buf_len)
{
int ret, i, nr;
unsigned long long payload = packet->payload;
const char *name = intel_pt_pkt_name(packet->type);
switch (packet->type) {
case INTEL_PT_BAD:
case INTEL_PT_PAD:
case INTEL_PT_PSB:
case INTEL_PT_PSBEND:
case INTEL_PT_TRACESTOP:
case INTEL_PT_OVF:
return snprintf(buf, buf_len, "%s", name);
case INTEL_PT_TNT: {
size_t blen = buf_len;
ret = snprintf(buf, blen, "%s ", name);
if (ret < 0)
return ret;
buf += ret;
blen -= ret;
for (i = 0; i < packet->count; i++) {
if (payload & BIT63)
ret = snprintf(buf, blen, "T");
else
ret = snprintf(buf, blen, "N");
if (ret < 0)
return ret;
buf += ret;
blen -= ret;
payload <<= 1;
}
ret = snprintf(buf, blen, " (%d)", packet->count);
if (ret < 0)
return ret;
blen -= ret;
return buf_len - blen;
}
case INTEL_PT_TIP_PGD:
case INTEL_PT_TIP_PGE:
case INTEL_PT_TIP:
case INTEL_PT_FUP:
if (!(packet->count))
return snprintf(buf, buf_len, "%s no ip", name);
fallthrough;
case INTEL_PT_CYC:
case INTEL_PT_VMCS:
case INTEL_PT_MTC:
case INTEL_PT_MNT:
case INTEL_PT_CBR:
case INTEL_PT_TSC:
return snprintf(buf, buf_len, "%s 0x%llx", name, payload);
case INTEL_PT_TMA:
return snprintf(buf, buf_len, "%s CTC 0x%x FC 0x%x", name,
(unsigned)payload, packet->count);
case INTEL_PT_MODE_EXEC:
return snprintf(buf, buf_len, "%s IF:%d %lld",
name, !!(packet->count & 4), payload);
case INTEL_PT_MODE_TSX:
return snprintf(buf, buf_len, "%s TXAbort:%u InTX:%u",
name, (unsigned)(payload >> 1) & 1,
(unsigned)payload & 1);
case INTEL_PT_PIP:
nr = packet->payload & INTEL_PT_VMX_NR_FLAG ? 1 : 0;
payload &= ~INTEL_PT_VMX_NR_FLAG;
ret = snprintf(buf, buf_len, "%s 0x%llx (NR=%d)",
name, payload >> 1, nr);
return ret;
case INTEL_PT_PTWRITE:
return snprintf(buf, buf_len, "%s 0x%llx IP:0", name, payload);
case INTEL_PT_PTWRITE_IP:
return snprintf(buf, buf_len, "%s 0x%llx IP:1", name, payload);
case INTEL_PT_BEP:
case INTEL_PT_EXSTOP:
return snprintf(buf, buf_len, "%s IP:0", name);
case INTEL_PT_BEP_IP:
case INTEL_PT_EXSTOP_IP:
return snprintf(buf, buf_len, "%s IP:1", name);
case INTEL_PT_MWAIT:
return snprintf(buf, buf_len, "%s 0x%llx Hints 0x%x Extensions 0x%x",
name, payload, (unsigned int)(payload & 0xff),
(unsigned int)((payload >> 32) & 0x3));
case INTEL_PT_PWRE:
return snprintf(buf, buf_len, "%s 0x%llx HW:%u CState:%u Sub-CState:%u",
name, payload, !!(payload & 0x80),
(unsigned int)((payload >> 12) & 0xf),
(unsigned int)((payload >> 8) & 0xf));
case INTEL_PT_PWRX:
return snprintf(buf, buf_len, "%s 0x%llx Last CState:%u Deepest CState:%u Wake Reason 0x%x",
name, payload,
(unsigned int)((payload >> 4) & 0xf),
(unsigned int)(payload & 0xf),
(unsigned int)((payload >> 8) & 0xf));
case INTEL_PT_BBP:
return snprintf(buf, buf_len, "%s SZ %s-byte Type 0x%llx",
name, packet->count ? "4" : "8", payload);
case INTEL_PT_BIP:
return snprintf(buf, buf_len, "%s ID 0x%02x Value 0x%llx",
name, packet->count, payload);
case INTEL_PT_CFE:
case INTEL_PT_CFE_IP:
return snprintf(buf, buf_len, "%s IP:%d Type 0x%02x Vector 0x%llx",
name, packet->type == INTEL_PT_CFE_IP, packet->count, payload);
case INTEL_PT_EVD:
return snprintf(buf, buf_len, "%s Type 0x%02x Payload 0x%llx",
name, packet->count, payload);
default:
break;
}
return snprintf(buf, buf_len, "%s 0x%llx (%d)",
name, payload, packet->count);
}
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