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readNioCounters.c
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readNioCounters.c
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/* This software is distributed under the following license:
* http://sflow.net/license.html
*/
#if defined(__cplusplus)
extern "C" {
#endif
#include "hsflowd.h"
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>
#include <linux/types.h>
#include <linux/ethtool.h>
#include <linux/sockios.h>
/*_________________---------------------------__________________
_________________ shareActorIDFromSlave __________________
-----------------___________________________------------------
*/
static void shareActorIDFromSlave(HSP *sp, HSPAdaptorNIO *bond_nio, HSPAdaptorNIO *aggregator_slave_nio) {
SFLAdaptor *adaptor;
UTHASH_WALK(sp->adaptorsByIndex, adaptor) {
HSPAdaptorNIO *nio = ADAPTOR_NIO(adaptor);
if(nio->bond_slave
&& nio != aggregator_slave_nio
&& nio->lacp.attachedAggID == bond_nio->lacp.attachedAggID) {
memcpy(nio->lacp.actorSystemID, aggregator_slave_nio->lacp.actorSystemID, 6);
}
}
}
/*_________________---------------------------__________________
_________________ updateBondCounters __________________
-----------------___________________________------------------
*/
void updateBondCounters(HSP *sp, SFLAdaptor *bond) {
char procFileName[256];
snprintf(procFileName, 256, "/proc/net/bonding/%s", bond->deviceName);
FILE *procFile = fopen(procFileName, "r");
if(procFile) {
// limit the number of chars we will read from each line
// (there can be more than this - fgets will chop for us)
#define MAX_PROC_LINE_CHARS 240
char line[MAX_PROC_LINE_CHARS];
SFLAdaptor *currentSlave = NULL;
HSPAdaptorNIO *slave_nio = NULL;
HSPAdaptorNIO *bond_nio = ADAPTOR_NIO(bond);
HSPAdaptorNIO *aggregator_slave_nio = NULL;
bond_nio->lacp.attachedAggID = bond->ifIndex;
uint32_t aggID = 0;
// make sure we don't hold on to stale data - may need
// to pick up actorSystemID from a slave port.
memset(bond_nio->lacp.actorSystemID, 0, 6);
memset(bond_nio->lacp.partnerSystemID, 0, 6);
int readingMaster = YES; // bond master data comes first
int gotActorID = NO;
while(fgets(line, MAX_PROC_LINE_CHARS, procFile)) {
char buf_var[MAX_PROC_LINE_CHARS];
char buf_val[MAX_PROC_LINE_CHARS];
// buf_var is up to first ':', buf_val is the rest
if(sscanf(line, "%[^:]:%[^\n]", buf_var, buf_val) == 2) {
char *tok_var = trimWhitespace(buf_var);
char *tok_val = trimWhitespace(buf_val);
if(readingMaster) {
if(my_strequal(tok_var, "MII Status")) {
if(my_strequal(tok_val, "up")) {
bond_nio->lacp.portState.v.actorAdmin = 2; // dot3adAggPortActorAdminState
bond_nio->lacp.portState.v.actorOper = 2;
bond_nio->lacp.portState.v.partnerAdmin = 2;
bond_nio->lacp.portState.v.partnerOper = 2;
}
else {
bond_nio->lacp.portState.all = 0;
}
}
if(my_strequal(tok_var, "System Identification")) {
myDebug(1, "updateBondCounters: %s system identification %s",
bond->deviceName,
tok_val);
char sys_mac[MAX_PROC_LINE_CHARS];
uint64_t code;
if(sscanf(tok_val, "%"SCNu64" %s", &code, sys_mac) == 2) {
if(hexToBinary((u_char *)sys_mac,bond_nio->lacp.actorSystemID, 6) != 6) {
myLog(LOG_ERR, "updateBondCounters: system mac read error: %s", sys_mac);
}
else if(!isAllZero(bond_nio->lacp.actorSystemID, 6)) {
gotActorID = YES;
}
}
}
if(my_strequal(tok_var, "Partner Mac Address")) {
myDebug(1, "updateBondCounters: %s partner mac is %s",
bond->deviceName,
tok_val);
if(hexToBinary((u_char *)tok_val,bond_nio->lacp.partnerSystemID, 6) != 6) {
myLog(LOG_ERR, "updateBondCounters: partner mac read error: %s", tok_val);
}
}
if(my_strequal(tok_var, "Aggregator ID")) {
aggID = strtol(tok_val, NULL, 0);
myDebug(1, "updateBondCounters: %s aggID %u", bond->deviceName, aggID);
}
}
// initially the data is for the bond, but subsequently
// we get info about each slave. So we started with
// (readingMaster=YES,currentSlave=NULL), and now we
// detect transitions to slave data:
if(my_strequal(tok_var, "Slave Interface")) {
readingMaster = NO;
currentSlave = adaptorByName(sp, trimWhitespace(tok_val));
slave_nio = currentSlave ? ADAPTOR_NIO(currentSlave) : NULL;
myDebug(1, "updateBondCounters: bond %s slave %s %s",
bond->deviceName,
tok_val,
currentSlave ? "found" : "not found");
if(slave_nio) {
// initialize from bond
slave_nio->lacp.attachedAggID = bond->ifIndex;
memcpy(slave_nio->lacp.partnerSystemID, bond_nio->lacp.partnerSystemID, 6);
memcpy(slave_nio->lacp.actorSystemID, bond_nio->lacp.actorSystemID, 6);
// make sure the parent is going to export separate
// counters if the slave is going to (because it was
// marked as a switchPort):
if(slave_nio->switchPort) {
bond_nio->switchPort = YES;
}
// and vice-versa
if(bond_nio->switchPort) {
slave_nio->switchPort = YES;
}
}
}
if(readingMaster == NO && slave_nio) {
if(my_strequal(tok_var, "MII Status")) {
if(my_strequal(tok_val, "up")) {
slave_nio->lacp.portState.v.actorAdmin = 2; // dot3adAggPortActorAdminState
slave_nio->lacp.portState.v.actorOper = 2;
slave_nio->lacp.portState.v.partnerAdmin = 2;
slave_nio->lacp.portState.v.partnerOper = 2;
}
else {
slave_nio->lacp.portState.all = 0;
}
}
if(my_strequal(tok_var, "Permanent HW addr")) {
if(!gotActorID) {
// Still looking for our actorSystemID, so capture this here in case we
// decide below that it is the one we want. Note that this mac may not be the
// same as the mac associated with this port that we read back in readInterfaces.c.
if(hexToBinary((u_char *)tok_val,slave_nio->lacp.actorSystemID, 6) != 6) {
myLog(LOG_ERR, "updateBondCounters: permanent HW addr read error: %s", tok_val);
}
}
}
if(my_strequal(tok_var, "Aggregator ID")) {
uint32_t slave_aggID = strtol(tok_val, NULL, 0);
if(slave_aggID == aggID) {
// remember that is the slave port that has the same aggregator ID as the bond
aggregator_slave_nio = slave_nio;
}
}
}
}
}
if(aggregator_slave_nio && !gotActorID) {
// go back and fill in the actorSystemID on all the slave ports
shareActorIDFromSlave(sp, bond_nio, aggregator_slave_nio);
}
fclose(procFile);
}
}
/* ================== example of /proc/net/bonding/<if> ====================
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
802.3ad info
LACP rate: fast
Min links: 0
Aggregator selection policy (ad_select): stable
Active Aggregator Info:
Aggregator ID: 1
Number of ports: 2
Actor Key: 17
Partner Key: 17
Partner Mac Address: 08:9e:01:f8:9b:45
Slave Interface: swp3
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 08:9e:01:f8:9b:af
Aggregator ID: 1
Slave queue ID: 0
Slave Interface: swp4
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 08:9e:01:f8:9b:b0
Aggregator ID: 1
Slave queue ID: 0
*/
/*_________________---------------------------__________________
_________________ readBondState __________________
-----------------___________________________------------------
*/
void readBondState(HSP *sp) {
assert(sp);
assert(sp->adaptorsByIndex);
SFLAdaptor *adaptor;
UTHASH_WALK(sp->adaptorsByIndex, adaptor) {
assert(adaptor);
assert(ADAPTOR_NIO(adaptor) != NULL);
if(ADAPTOR_NIO(adaptor)->bond_master)
updateBondCounters(sp, adaptor);
}
}
/*_________________---------------------------__________________
_________________ syncBondPolling __________________
-----------------___________________________------------------
*/
static void syncSlavePolling(HSP *sp, SFLAdaptor *bond) {
HSPAdaptorNIO *bond_nio = ADAPTOR_NIO(bond);
SFLAdaptor *adaptor;
UTHASH_WALK(sp->adaptorsByIndex, adaptor) {
HSPAdaptorNIO *nio = ADAPTOR_NIO(adaptor);
if(nio->bond_slave
&& nio->lacp.attachedAggID == bond_nio->lacp.attachedAggID) {
// put the slave on the same polling schedule as the master.
// This isn't strictly necessary, but it will reduce the
// frequency of access to th /proc/net/bonding file.
if(bond_nio->poller
&& nio->poller) {
myDebug(1, "sync polling so that slave %s goes with bond %s",
adaptor->deviceName,
bond->deviceName);
sfl_poller_synchronize_polling(nio->poller, bond_nio->poller);
}
}
}
}
void syncBondPolling(HSP *sp) {
SFLAdaptor *adaptor;
UTHASH_WALK(sp->adaptorsByIndex, adaptor) {
if(ADAPTOR_NIO(adaptor)->bond_master)
syncSlavePolling(sp, adaptor);
}
}
/*_________________---------------------------__________________
_________________ syncPolling __________________
-----------------___________________________------------------
*/
void syncPolling(HSP *sp) {
if(sp->syncPollingInterval <= 1)
return;
SFLAdaptor *adaptor;
UTHASH_WALK(sp->adaptorsByIndex, adaptor) {
HSPAdaptorNIO *nio = ADAPTOR_NIO(adaptor);
if(nio->poller
&& nio->switchPort) {
uint32_t countdown = nio->poller->countersCountdown;
uint32_t nudgeBack = countdown % sp->syncPollingInterval;
uint32_t nudgeFwd = sp->syncPollingInterval - nudgeBack;
// take the smaller nudge - as long as it's in the future
if(nudgeBack < nudgeFwd
&& countdown > nudgeBack)
nio->poller->countersCountdown -= nudgeBack;
else
nio->poller->countersCountdown += nudgeFwd;
}
}
}
#if ( HSP_OPTICAL_STATS && ETHTOOL_GMODULEEEPROM )
/*_________________---------------------------__________________
_________________ SFF8472 SFP Data __________________
-----------------___________________________------------------
*/
static double sff8472_calibration(double reading, uint16_t *eew, uint32_t iscale, uint32_t ioffset)
{
// (reading * scale) + offset
double offset = ntohs(eew[ioffset]);
uint16_t scale16 = ntohs(eew[iscale]);
double scale = (double)(scale16 >> 8) + ((double)(scale16 & 0xFF) / 256.0);
return (reading * scale) + offset;
}
#define SFF8472_CAL(x, e, i) (x) = sff8472_calibration((x), (e), (i), (i)+1)
static double sff8472_calibration_rxpwr(double reading, float *rxpwr)
{
// rxpwr[0],..,rxpwr[4] correspond to RX_PWR(4),..,RXPWR(0) in the spec
// (i.e. in reverse order). The calibrated result is the 16-bit sum of
// each term multiplied by reading^N (then truncated to 16 bits)
// i.e. RX_PWR(0) * 1
// +RX_PWR(1) * reading
// +RX_PWR(2) * reading * reading
// and so on.
float r = 1;
uint16_t ans = 0;
for(int ii = 5; --ii >= 0;) {
ans += (uint16_t)(rxpwr[ii] * r);
r *= reading;
}
return ans;
}
#define SFF8472_CAL_RXPWR(x, ff) (x) = sff8472_calibration_rxpwr((x), (ff))
static void sff8472_read(SFLAdaptor *adaptor, struct ifreq *ifr, int fd)
{
struct ethtool_eeprom *eeprom = NULL;
HSPAdaptorNIO *nio = ADAPTOR_NIO(adaptor);
if(nio->modinfo_len < ETH_MODULE_SFF_8472_LEN)
goto out;
eeprom = (struct ethtool_eeprom *)my_calloc(sizeof(*eeprom) + ETH_MODULE_SFF_8472_LEN);
eeprom->cmd = ETHTOOL_GMODULEEEPROM;
eeprom->len = ETH_MODULE_SFF_8472_LEN;
ifr->ifr_data = (char *)eeprom;
if(ioctl(fd, SIOCETHTOOL, ifr) < 0) {
myLog(LOG_ERR, "SFF8036 ethtool ioctl failed: %s", strerror(errno));
goto out;
}
if(eeprom->data[0] != 0x03 ||
eeprom->data[1] != 0x04) {
goto out;
}
// test (SFF_A0_DOM & SFF_A0_DOM_IMPL)
if(!(eeprom->data[92] & 0x40)) {
// no optical stats
goto out;
}
uint32_t num_lanes = 1;
uint16_t wavelength=0;
double temperature, voltage, bias_current;
double tx_power, tx_power_max, tx_power_min;
double rx_power, rx_power_max, rx_power_min;
uint16_t *eew = (uint16_t *)(eeprom->data);
// wavelength
if(!(eeprom->data[8] & 0x0c)) {
wavelength = ntohs(eew[30]);
}
// temperature
uint16_t temp16 = ntohs(eew[128 + 48]);
temperature = (int8_t)(temp16 >> 8); // high byte in oC (signed)
temperature += (double)(temp16 & 0xFF) / 256.0; // low byte in 1/256 oC
// voltage
voltage = ntohs(eew[128 + 49]);
// bias current
bias_current = ntohs(eew[128 + 50]);
// power
tx_power = ntohs(eew[128 + 51]);
rx_power = ntohs(eew[128 + 52]);
tx_power_max = ntohs(eew[128 + 12]);
tx_power_min = ntohs(eew[128 + 13]);
rx_power_max = ntohs(eew[128 + 16]);
rx_power_min = ntohs(eew[128 + 17]);
// calibration
if(eeprom->data[92] & 0x10) {
// apply external calibration
SFF8472_CAL(bias_current, eew, (128 + 38));
SFF8472_CAL(tx_power, eew, (128 + 40));
SFF8472_CAL(tx_power_max, eew, (128 + 40));
SFF8472_CAL(tx_power_min, eew, (128 + 40));
SFF8472_CAL(temperature, eew, (128 + 42));
SFF8472_CAL(voltage, eew, (128 + 44));
// rx power calibration is a polynomial
// read the float coefficients as uint32_t
// so we can byte-swap them easily:
uint32_t rxpwr[5];
memcpy(rxpwr, eew + 128 + 28, 5 * 4);
for(int ii = 0; ii < 5; ii++) rxpwr[ii] = ntohl(rxpwr[ii]);
// now apply to rx_pwr
SFF8472_CAL_RXPWR(rx_power, (float *)rxpwr);
SFF8472_CAL_RXPWR(rx_power_min, (float *)rxpwr);
SFF8472_CAL_RXPWR(rx_power_max, (float *)rxpwr);
}
// populate sFlow structure
nio->sfp.lanes = (SFLLane *)my_realloc(nio->sfp.lanes, sizeof(SFLLane) * num_lanes);
nio->sfp.module_id = adaptor->ifIndex;
nio->sfp.module_total_lanes = num_lanes;
nio->sfp.module_supply_voltage = (voltage / 10); // mV
nio->sfp.module_temperature = (temperature * 1000); // mC
nio->sfp.num_lanes = num_lanes;
SFLLane *lane = &(nio->sfp.lanes[0]);
lane->lane_index = 1;
lane->tx_bias_current = (bias_current * 2); // uA
lane->tx_power = (tx_power / 10); // uW
lane->tx_power_min = (tx_power_min / 10); // uW
lane->tx_power_max = (tx_power_max / 10); // uW
lane->tx_wavelength = wavelength;
lane->rx_power = (rx_power / 10); // uW
lane->rx_power_min = (rx_power_min / 10); // uW
lane->rx_power_max = (rx_power_max / 10); // uW
lane->rx_wavelength = wavelength; // same as tx_wavelength
myDebug(1, "SFP8472 %s u=%u(nm) T=%u(mC) V=%u(mV) I=%u(uA) tx=%u(uW) [%u-%u] rx=%u(uW) [%u-%u]",
adaptor->deviceName,
lane->tx_wavelength,
nio->sfp.module_temperature,
nio->sfp.module_supply_voltage,
lane->tx_bias_current,
lane->tx_power,
lane->tx_power_min,
lane->tx_power_max,
lane->rx_power,
lane->rx_power_min,
lane->rx_power_max);
out:
if(eeprom)
my_free(eeprom);
}
static void sff8436_read(SFLAdaptor *adaptor, struct ifreq *ifr, int fd)
{
struct ethtool_eeprom *eeprom = NULL;
HSPAdaptorNIO *nio = ADAPTOR_NIO(adaptor);
if(nio->modinfo_len < ETH_MODULE_SFF_8436_LEN)
goto out;
eeprom = (struct ethtool_eeprom *)my_calloc(sizeof(*eeprom) + ETH_MODULE_SFF_8436_LEN);
eeprom->cmd = ETHTOOL_GMODULEEEPROM;
eeprom->len = ETH_MODULE_SFF_8436_LEN;
#ifdef HSP_TEST_QSFP
int bytes = hexToBinary((u_char *)
"0d-00-02-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-1b-10-00-00-7f-92-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-ff-ff-ff-ff-ff-ff-ff-ff-00"
"0d-00-23-00-00-00-00-40-40-06-d5-05-69-00-00-05"
"0a-00-0a-00-46-49-4e-49-53-41-52-20-43-4f-52-50"
"20-20-20-20-07-00-90-65-46-43-42-47-34-31-30-51"
"42-31-43-31-30-2d-46-43-41-20-42-68-07-d0-46-db"
"00-01-04-da-44-53-4a-30-30-41-41-20-20-20-20-20"
"20-20-20-20-31-34-31-30-32-37-20-20-08-00-00-39"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"0f-10-00-a1-53-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"4b-00-fb-00-46-00-00-00-00-00-00-00-00-00-00-00"
"94-70-6e-f0-86-c4-7b-0c-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00"
"00-00-22-22-00-00-00-00-00-00-00-00-00-00-33-33"
"00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00",
&eeprom->data[0],
ETH_MODULE_SFF_8436_LEN);
if(bytes != ETH_MODULE_SFF_8436_LEN) {
myLog(LOG_ERR, "test QSFP: hexToBinary failed (bytes=%d)", bytes);
}
#else
ifr->ifr_data = (char *)eeprom;
if(ioctl(fd, SIOCETHTOOL, ifr) < 0) {
myLog(LOG_ERR, "SFF8036 ethtool ioctl failed: %s", strerror(errno));
goto out;
}
#endif
// check for SFF8436_ID_DWDM_QSFP_PLUS
if(eeprom->data[0] != 0x0d) {
goto out;
}
uint32_t num_lanes = 4;
uint16_t wavelength=0;
double temperature, voltage, bias_current[4];
double rx_power[4], rx_power_max, rx_power_min;
uint16_t *eew = (uint16_t *)(eeprom->data);
// wavelength - determined by transciever technology code
#ifndef SFF8436_DEVICE_TECH_OFFSET
// these defs should eventually appear in ethtool.h
#define SFF8436_DEVICE_TECH_OFFSET 0x93
#define SFF8436_TRANS_TECH_MASK 0xF0
#define SFF8436_TRANS_COPPER_LNR_EQUAL (15 << 4)
#define SFF8436_TRANS_COPPER_NEAR_EQUAL (14 << 4)
#define SFF8436_TRANS_COPPER_FAR_EQUAL (13 << 4)
#define SFF8436_TRANS_COPPER_LNR_FAR_EQUAL (12 << 4)
#define SFF8436_TRANS_COPPER_PAS_EQUAL (11 << 4)
#define SFF8436_TRANS_COPPER_PAS_UNEQUAL (10 << 4)
#define SFF8436_TRANS_1490_DFB (9 << 4)
#define SFF8436_TRANS_OTHERS (8 << 4)
#define SFF8436_TRANS_1550_EML (7 << 4)
#define SFF8436_TRANS_1310_EML (6 << 4)
#define SFF8436_TRANS_1550_DFB (5 << 4)
#define SFF8436_TRANS_1310_DFB (4 << 4)
#define SFF8436_TRANS_1310_FP (3 << 4)
#define SFF8436_TRANS_1550_VCSEL (2 << 4)
#define SFF8436_TRANS_1310_VCSEL (1 << 4)
#define SFF8436_TRANS_850_VCSEL (0 << 4)
#endif
uint8_t tx_tech = (eeprom->data[SFF8436_DEVICE_TECH_OFFSET]
& SFF8436_TRANS_TECH_MASK);
switch (tx_tech) {
case SFF8436_TRANS_850_VCSEL: wavelength = 850; break;
case SFF8436_TRANS_1310_EML:
case SFF8436_TRANS_1310_DFB:
case SFF8436_TRANS_1310_FP:
case SFF8436_TRANS_1310_VCSEL: wavelength = 1310; break;
case SFF8436_TRANS_1550_EML:
case SFF8436_TRANS_1550_DFB:
case SFF8436_TRANS_1550_VCSEL: wavelength = 1550; break;
case SFF8436_TRANS_1490_DFB: wavelength = 1490; break;
}
// temperature
uint16_t temp16 = ntohs(eew[11]);
temperature = (int8_t)(temp16 >> 8); // high byte in oC (signed)
temperature += (double)(temp16 & 0xFF) / 256.0; // low byte in 1/256 oC
// voltage
voltage = ntohs(eew[13]);
// channel stats
for (int ch=0; ch < num_lanes; ch++) {
rx_power[ch] = ntohs(eew[17 + ch]);
bias_current[ch] = ntohs(eew[21 + ch]);
}
// power
rx_power_max = ntohs(eew[256 + 24]);
rx_power_min = ntohs(eew[256 + 25]);
// populate sFlow structure
nio->sfp.lanes = (SFLLane *)my_realloc(nio->sfp.lanes, sizeof(SFLLane) * num_lanes);
nio->sfp.module_id = adaptor->ifIndex;
nio->sfp.module_total_lanes = num_lanes;
nio->sfp.module_supply_voltage = (voltage / 10); // mV
nio->sfp.module_temperature = (temperature * 1000); // mC
nio->sfp.num_lanes = num_lanes;
for (int ch=0; ch < num_lanes; ch++) {
SFLLane *lane = &(nio->sfp.lanes[ch]);
lane->lane_index = (ch + 1);
lane->tx_bias_current = (bias_current[ch] * 2); // uA
lane->tx_wavelength = wavelength;
lane->rx_power = (rx_power[ch] / 10); // uW
lane->rx_power_min = (rx_power_min / 10); // uW
lane->rx_power_max = (rx_power_max / 10); // uW
lane->rx_wavelength = wavelength; // same as tx_wavelength
myDebug(1, "SFP8436 %s[%u] u=%u(nm) T=%u(mC) V=%u(mV) I=%u(uA) tx=%u(uW) [%u-%u] rx=%u(uW) [%u-%u]",
adaptor->deviceName,
ch,
lane->tx_wavelength,
nio->sfp.module_temperature,
nio->sfp.module_supply_voltage,
lane->tx_bias_current,
lane->tx_power,
lane->tx_power_min,
lane->tx_power_max,
lane->rx_power,
lane->rx_power_min,
lane->rx_power_max);
}
out:
if(eeprom)
my_free(eeprom);
}
#endif /* ( HSP_OPTICAL_STATS && ETHTOOL_GMODULEEEPROM ) */
/*_________________---------------------------__________________
_________________ accumulateNioCounters __________________
-----------------___________________________------------------
*/
int accumulateNioCounters(HSP *sp, SFLAdaptor *adaptor, SFLHost_nio_counters *ctrs, HSP_ethtool_counters *et_ctrs)
{
HSPAdaptorNIO *nio = ADAPTOR_NIO(adaptor);
// have to detect discontinuities here, so use a full
// set of latched counters and accumulators.
int accumulate = nio->last_update ? YES : NO;
nio->last_update = sp->pollBus->now.tv_sec;
uint64_t maxDeltaBytes = HSP_MAX_NIO_DELTA64;
SFLHost_nio_counters delta;
HSP_ethtool_counters et_delta;
#define NIO_COMPUTE_DELTA(field) delta.field = ctrs->field - nio->last_nio.field
NIO_COMPUTE_DELTA(pkts_in);
NIO_COMPUTE_DELTA(errs_in);
NIO_COMPUTE_DELTA(drops_in);
NIO_COMPUTE_DELTA(pkts_out);
NIO_COMPUTE_DELTA(errs_out);
NIO_COMPUTE_DELTA(drops_out);
if(sp->nio_polling_secs == 0) {
// 64-bit byte counters
NIO_COMPUTE_DELTA(bytes_in);
NIO_COMPUTE_DELTA(bytes_out);
}
else {
// for case where byte counters are 32-bit, we need
// to use 32-bit unsigned arithmetic to avoid spikes
delta.bytes_in = (uint32_t)ctrs->bytes_in - nio->last_bytes_in32;
delta.bytes_out = (uint32_t)ctrs->bytes_out - nio->last_bytes_out32;
nio->last_bytes_in32 = ctrs->bytes_in;
nio->last_bytes_out32 = ctrs->bytes_out;
maxDeltaBytes = HSP_MAX_NIO_DELTA32;
// if we detect that the OS is using 64-bits then we can turn off the faster
// NIO polling. This should probably be done based on the kernel version or some
// other include-file definition, but it's not expensive to do it here like this:
if(ctrs->bytes_in > 0xFFFFFFFF || ctrs->bytes_out > 0xFFFFFFFF) {
myLog(LOG_INFO, "detected 64-bit counters - turn off faster polling");
sp->nio_polling_secs = 0;
}
}
#define ET_COMPUTE_DELTA(field) et_delta.field = et_ctrs->field - nio->et_last.field
ET_COMPUTE_DELTA(mcasts_in);
ET_COMPUTE_DELTA(mcasts_out);
ET_COMPUTE_DELTA(bcasts_in);
ET_COMPUTE_DELTA(bcasts_out);
if(accumulate) {
// sanity check in case the counters were reset under out feet.
// normally we leave this to the upstream collector, but these
// numbers might be getting passed through from the hardware(?)
// so we treat them with particular distrust.
if(delta.bytes_in > maxDeltaBytes ||
delta.bytes_out > maxDeltaBytes ||
delta.pkts_in > HSP_MAX_NIO_DELTA32 ||
delta.pkts_out > HSP_MAX_NIO_DELTA32) {
myLog(LOG_ERR, "detected counter discontinuity for %s: deltaBytes=%"PRIu64",%"PRIu64" deltaPkts=%u,%u",
adaptor->deviceName,
delta.bytes_in,
delta.bytes_out,
delta.pkts_in,
delta.pkts_out);
accumulate = NO;
}
if(et_delta.mcasts_in > HSP_MAX_NIO_DELTA64 ||
et_delta.mcasts_out > HSP_MAX_NIO_DELTA64 ||
et_delta.bcasts_in > HSP_MAX_NIO_DELTA64 ||
et_delta.bcasts_out > HSP_MAX_NIO_DELTA64) {
myLog(LOG_ERR, "detected counter discontinuity in ethtool stats");
accumulate = NO;
}
}
if(accumulate) {
#define NIO_ACCUMULATE(field) nio->nio.field += delta.field
NIO_ACCUMULATE(bytes_in);
NIO_ACCUMULATE(pkts_in);
NIO_ACCUMULATE(errs_in);
NIO_ACCUMULATE(drops_in);
NIO_ACCUMULATE(bytes_out);
NIO_ACCUMULATE(pkts_out);
NIO_ACCUMULATE(errs_out);
NIO_ACCUMULATE(drops_out);
#define ET_ACCUMULATE(field) nio->et_total.field += et_delta.field
ET_ACCUMULATE(mcasts_in);
ET_ACCUMULATE(mcasts_out);
ET_ACCUMULATE(bcasts_in);
ET_ACCUMULATE(bcasts_out);
}
// latch - with struct copy
nio->last_nio = *ctrs;
nio->et_last = *et_ctrs;
return accumulate;
}
/*_________________---------------------------__________________
_________________ updateNioCounters __________________
-----------------___________________________------------------
*/
void updateNioCounters(HSP *sp, SFLAdaptor *filter) {
assert(EVCurrentBus() == sp->pollBus);
time_t clk = sp->pollBus->now.tv_sec;
// notify modules in case they want to override
EVEventTx(sp->rootModule, EVGetEvent(sp->pollBus, HSPEVENT_UPDATE_NIO), &filter, sizeof(filter));
if(filter == NULL) {
// full refresh - but don't do anything if we just
// refreshed all the numbers less than a second ago
if (sp->nio_last_update == clk) {
return;
}
sp->nio_last_update = clk;
}
else {
if(ADAPTOR_NIO(filter)->last_update == clk) {
// the requested adaptor has fresh counters
// so nothing to do here
return;
}
}
FILE *procFile;
procFile= fopen("/proc/net/dev", "r");
if(procFile) {
int fd = socket (PF_INET, SOCK_DGRAM, 0);
struct ifreq ifr;
memset (&ifr, 0, sizeof(ifr));
// ASCII numbers in /proc/diskstats may be 64-bit (if not now
// then someday), so it seems safer to read into
// 64-bit ints with scanf first, then copy them
// into the host_nio structure from there.
uint64_t bytes_in = 0;
uint64_t pkts_in = 0;
uint64_t errs_in = 0;
uint64_t drops_in = 0;
uint64_t bytes_out = 0;
uint64_t pkts_out = 0;
uint64_t errs_out = 0;
uint64_t drops_out = 0;
// limit the number of chars we will read from each line
// (there can be more than this - fgets will chop for us)
#define MAX_PROC_LINE_CHARS 240
char line[MAX_PROC_LINE_CHARS];
while(fgets(line, MAX_PROC_LINE_CHARS, procFile)) {
char deviceName[MAX_PROC_LINE_CHARS];
// assume the format is:
// Inter-| Receive | Transmit
// face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
if(sscanf(line, "%[^:]:%"SCNu64" %"SCNu64" %"SCNu64" %"SCNu64" %*u %*u %*u %*u %"SCNu64" %"SCNu64" %"SCNu64" %"SCNu64"",
deviceName,
&bytes_in,
&pkts_in,
&errs_in,
&drops_in,
&bytes_out,
&pkts_out,
&errs_out,
&drops_out) == 9) {
SFLAdaptor *adaptor = adaptorByName(sp, deviceName);
if(adaptor) {
if(filter && (filter != adaptor))
continue;
HSPAdaptorNIO *niostate = ADAPTOR_NIO(adaptor);
if(niostate->procNetDev == NO)
continue;
SFLHost_nio_counters ctrs = {
.bytes_in = bytes_in,
.pkts_in = (uint32_t)pkts_in,
.errs_in = (uint32_t)errs_in,
.drops_in = (uint32_t)drops_in,
.bytes_out = bytes_out,
.pkts_out = (uint32_t)pkts_out,
.errs_out = (uint32_t)errs_out,
.drops_out = (uint32_t)drops_out
};
HSP_ethtool_counters et_ctrs = { 0 };
if (niostate->ethtool_GSTATS
&& niostate->et_found) {
// get the latest stats block for this device via ethtool
// and read out the counters that we located by name.
uint32_t bytes = sizeof(struct ethtool_stats);
bytes += niostate->et_nctrs * sizeof(uint64_t);
bytes += 32; // pad - just in case driver wants to write more
struct ethtool_stats *et_stats = (struct ethtool_stats *)my_calloc(bytes);
et_stats->cmd = ETHTOOL_GSTATS;
et_stats->n_stats = niostate->et_nctrs;
// now issue the ioctl
strncpy(ifr.ifr_name, adaptor->deviceName, sizeof(ifr.ifr_name));
ifr.ifr_data = (char *)et_stats;
if(ioctl(fd, SIOCETHTOOL, &ifr) >= 0) {
if(getDebug() > 2) {
for(int xx = 0; xx < et_stats->n_stats; xx++) {
myDebug(1, "ethtool counter for %s at index %d == %"PRIu64,
adaptor->deviceName,
xx,
et_stats->data[xx]);
}
}
if(niostate->et_idx_mcasts_in)
et_ctrs.mcasts_in = et_stats->data[niostate->et_idx_mcasts_in - 1];
if(niostate->et_idx_mcasts_out)
et_ctrs.mcasts_out = et_stats->data[niostate->et_idx_mcasts_out - 1];
if(niostate->et_idx_bcasts_in)
et_ctrs.bcasts_in = et_stats->data[niostate->et_idx_bcasts_in - 1];
if(niostate->et_idx_bcasts_out)
et_ctrs.bcasts_out = et_stats->data[niostate->et_idx_bcasts_out - 1];
}
my_free(et_stats);
}
#if ( HSP_OPTICAL_STATS && ETHTOOL_GMODULEEEPROM )
if(filter) {
// If we are refreshing stats for an individual device, then
// check for SFP (lane) stats too. This operation can be slow so
// it's important to avoid doing it when we are refreshing
// counters for all interfaces for host-sflow network totals.
// Since the host-sflow network totals do not include optical
// stats, this is not a problem.
switch(niostate->modinfo_type) {
case ETH_MODULE_SFF_8472: sff8472_read(adaptor, &ifr, fd); break;
case ETH_MODULE_SFF_8436: sff8436_read(adaptor, &ifr, fd); break;
}
}
#endif /* ( HSP_OPTICAL_STATS && ETHTOOL_GMODULEEEPROM ) */
accumulateNioCounters(sp, adaptor, &ctrs, &et_ctrs);
}
}
}
if(fd >= 0)
close(fd);
fclose(procFile);
}
}
/*_________________---------------------------__________________
_________________ readNioCounters __________________
-----------------___________________________------------------
*/
int readNioCounters(HSP *sp, SFLHost_nio_counters *nio, char *devFilter, SFLAdaptorList *adList) {
int interface_count = 0;
size_t devFilterLen = devFilter ? strlen(devFilter) : 0;
// may need to schedule intermediate calls to updateNioCounters()
// too (to avoid undetected wraps), but at the very least we need to do
// it here to make sure the data is up to the second.
updateNioCounters(sp, NULL);
SFLAdaptor *adaptor;
UTHASH_WALK(sp->adaptorsByName, adaptor) {
// note that the devFilter here is a prefix-match
if(devFilter == NULL || !strncmp(devFilter, adaptor->deviceName, devFilterLen)) {
if(adList == NULL || adaptorListGet(adList, adaptor->deviceName) != NULL) {
HSPAdaptorNIO *niostate = ADAPTOR_NIO(adaptor);
// in the case where we are adding up across all
// interfaces, be careful to avoid double-counting.
// By leaving this test until now we make it possible
// to know the counters for any interface or sub-interface
// if required (e.g. for the readPackets() module).
if(devFilter == NULL && (niostate->up == NO
|| niostate->vlan != HSP_VLAN_ALL
|| niostate->loopback
|| niostate->bond_master)) {
continue;
}
interface_count++;
// report the sum over all devices that match the filter
nio->bytes_in += niostate->nio.bytes_in;
nio->pkts_in += niostate->nio.pkts_in;
nio->errs_in += niostate->nio.errs_in;
nio->drops_in += niostate->nio.drops_in;
nio->bytes_out += niostate->nio.bytes_out;
nio->pkts_out += niostate->nio.pkts_out;
nio->errs_out += niostate->nio.errs_out;
nio->drops_out += niostate->nio.drops_out;
}
}
}
return interface_count;
}
#if defined(__cplusplus)
} /* extern "C" */
#endif