Date: Sat, 16 Aug 2014 19:13:52 +0000 (UTC) From: "Alexander V. Chernikov" <melifaro@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r270064 - head/sbin/ifconfig Message-ID: <201408161913.s7GJDqtF012204@svn.freebsd.org>
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Author: melifaro Date: Sat Aug 16 19:13:52 2014 New Revision: 270064 URL: http://svnweb.freebsd.org/changeset/base/270064 Log: Add support for reading i2c SFP/SFP+ data from NIC driver and presenting most interesting fields via ifconfig -v. This version supports Intel ixgbe driver only. Tested on: Cisco,Intel,Mellanox,ModuleTech,Molex transceivers MFC after: 2 weeks Added: head/sbin/ifconfig/sfp.c (contents, props changed) Modified: head/sbin/ifconfig/Makefile head/sbin/ifconfig/ifconfig.c head/sbin/ifconfig/ifconfig.h Modified: head/sbin/ifconfig/Makefile ============================================================================== --- head/sbin/ifconfig/Makefile Sat Aug 16 15:00:01 2014 (r270063) +++ head/sbin/ifconfig/Makefile Sat Aug 16 19:13:52 2014 (r270064) @@ -33,6 +33,9 @@ SRCS+= ifvlan.c # SIOC[GS]ETVLAN suppor SRCS+= ifgre.c # GRE keys etc SRCS+= ifgif.c # GIF reversed header workaround +SRCS+= sfp.c # SFP/SFP+ information +LDADD+= -lm + SRCS+= ifieee80211.c regdomain.c # SIOC[GS]IEEE80211 support DPADD+= ${LIBBSDXML} ${LIBSBUF} LDADD+= -lbsdxml -lsbuf Modified: head/sbin/ifconfig/ifconfig.c ============================================================================== --- head/sbin/ifconfig/ifconfig.c Sat Aug 16 15:00:01 2014 (r270063) +++ head/sbin/ifconfig/ifconfig.c Sat Aug 16 19:13:52 2014 (r270064) @@ -1011,6 +1011,9 @@ status(const struct afswtch *afp, const if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0) printf("%s", ifs.ascii); + if (verbose > 0) + sfp_status(s, &ifr, verbose); + close(s); return; } Modified: head/sbin/ifconfig/ifconfig.h ============================================================================== --- head/sbin/ifconfig/ifconfig.h Sat Aug 16 15:00:01 2014 (r270063) +++ head/sbin/ifconfig/ifconfig.h Sat Aug 16 19:13:52 2014 (r270064) @@ -143,6 +143,8 @@ void ifmaybeload(const char *name); typedef void clone_callback_func(int, struct ifreq *); void clone_setdefcallback(const char *, clone_callback_func *); +void sfp_status(int s, struct ifreq *ifr, int verbose); + /* * XXX expose this so modules that neeed to know of any pending * operations on ifmedia can avoid cmd line ordering confusion. Added: head/sbin/ifconfig/sfp.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sbin/ifconfig/sfp.c Sat Aug 16 19:13:52 2014 (r270064) @@ -0,0 +1,543 @@ +/*- + * Copyright (c) 2014 Alexander V. Chernikov. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static const char rcsid[] = + "$FreeBSD$"; +#endif /* not lint */ + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/ioctl.h> +#include <sys/socket.h> + +#include <net/if.h> + +#include <math.h> +#include <err.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "ifconfig.h" + +/* 2wire addresses */ +#define SFP_ADDR_MSA 0xA0 /* Identification data */ +#define SFP_ADDR_DDM 0xA2 /* digital monitoring interface */ + +/* Definitions from Table 3.1 */ +#define SFP_MSA_IDENTIFIER 0 /* Type of transceiver (T. 3.2), 1B */ +#define SFP_MSA_CONNECTOR 2 /* Connector type (T. 3.3), 1B */ + +#define SFP_MSA_TRANSCEIVER_CLASS 3 /* Ethernet/Sonet/IB code, 1B */ + +#define SFP_MSA_VENDOR_NAME 20 /* ASCII vendor name, 16B */ +#define SFP_MSA_VENDOR_PN 40 /* ASCII vendor partnum, 16B */ +#define SFP_MSA_VENDOR_SN 68 /* ASCII vendor serialnum, 16B */ +#define SFP_MSA_VENDOR_DATE 84 /* Vendor's date code, 8B */ +#define SFP_MSA_DMONTYPE 92 /* Type of disagnostic monitoring, 1B */ + +/* Definitions from table 3.17 */ +#define SFP_DDM_TEMP 96 /* Module temperature, 2B */ +#define SFP_DDM_TXPOWER 102 /* Measured TX output power, 2B */ +#define SFP_DDM_RXPOWER 104 /* Measured RX input power, 2B */ + +struct i2c_info; +typedef int (read_i2c)(struct i2c_info *ii, uint8_t addr, uint8_t off, + uint8_t len, caddr_t buf); + +struct i2c_info { + int s; + int error; + struct ifreq *ifr; + read_i2c *f; + uint8_t diag_type; + char *textbuf; + size_t bufsize; +}; + +struct _nv { + int v; + const char *n; +}; + +const char *find_value(struct _nv *x, int value); +const char *find_zero_bit(struct _nv *x, int value, int sz); + + +/* SFF-8472 Rev. 11.4 table 3.2: Identifier values */ +static struct _nv ids[] = { + { 0x00, "Unknown" }, + { 0x01, "GBIC" }, + { 0x02, "SFF" }, + { 0x03, "SFP/SFP+" }, + { 0x04, "300 pin XBI" }, + { 0x05, "Xenpak" }, + { 0x06, "XFP" }, + { 0x07, "XFF" }, + { 0x08, "XFP-E" }, + { 0x09, "XPak" }, + { 0x0A, "X2" }, + { 0x0B, "DWDM-SFP/DWDM-SFP+" }, + { 0x0C, "QSFP" }, + { 0, NULL, }, +}; + +/* SFF-8472 Rev. 11.4 table 3.4: Connector values */ +static struct _nv conn[] = { + { 0x00, "Unknown" }, + { 0x01, "SC" }, + { 0x02, "Fibre Channel Style 1 copper" }, + { 0x03, "Fibre Channel Style 2 copper" }, + { 0x04, "BNC/TNC" }, + { 0x05, "Fibre Channel coaxial" }, + { 0x06, "FiberJack" }, + { 0x07, "LC" }, + { 0x08, "MT-RJ" }, + { 0x09, "MU" }, + { 0x0A, "SG" }, + { 0x0B, "Optical pigtail" }, + { 0x0C, "MPO Parallel Optic" }, + { 0x20, "HSSDC II" }, + { 0x21, "Copper pigtail" }, + { 0x22, "RJ45" }, + { 0, NULL } +}; + +const char * +find_value(struct _nv *x, int value) +{ + for (; x->n != NULL; x++) + if (x->v == value) + return (x->n); + return (NULL); +} + +const char * +find_zero_bit(struct _nv *x, int value, int sz) +{ + int v, m; + const char *s; + + v = 1; + for (v = 1, m = 1 << (8 * sz); v < m; v *= 2) { + if ((value & v) == 0) + continue; + if ((s = find_value(x, value & v)) != NULL) { + value &= ~v; + return (s); + } + } + + return (NULL); +} + +static void +get_sfp_identifier(struct i2c_info *ii, char *buf, size_t size) +{ + const char *x; + uint8_t data; + + ii->f(ii, SFP_ADDR_MSA, SFP_MSA_IDENTIFIER, 1, (caddr_t)&data); + + if ((x = find_value(ids, data)) == NULL) { + if (data > 0x80) + x = "Vendor specific"; + else + x = "Reserved"; + } + + snprintf(buf, size, "%s", x); +} + +static void +get_sfp_connector(struct i2c_info *ii, char *buf, size_t size) +{ + const char *x; + uint8_t data; + + ii->f(ii, SFP_ADDR_MSA, SFP_MSA_CONNECTOR, 1, (caddr_t)&data); + + if ((x = find_value(conn, data)) == NULL) { + if (data >= 0x0D && data <= 0x1F) + x = "Unallocated"; + else if (data >= 0x23 && data <= 0x7F) + x = "Unallocated"; + else + x = "Vendor specific"; + } + + snprintf(buf, size, "%s", x); +} + +/* SFF-8472 Rev. 11.4 table 3.5: Transceiver codes */ +/* 10G Ethernet compliance codes, byte 3 */ +static struct _nv eth_10g[] = { + { 0x80, "10G Base-ER" }, + { 0x40, "10G Base-LRM" }, + { 0x20, "10G Base-LR" }, + { 0x10, "10G Base-SR" }, + { 0x08, "1X SX" }, + { 0x04, "1X LX" }, + { 0x02, "1X Copper Active" }, + { 0x01, "1X Copper Passive" }, + { 0, NULL } +}; + +/* Ethernet compliance codes, byte 6 */ +static struct _nv eth_compat[] = { + { 0x80, "BASE-PX" }, + { 0x40, "BASE-BX10" }, + { 0x20, "100BASE-FX" }, + { 0x10, "100BASE-LX/LX10" }, + { 0x08, "1000BASE-T" }, + { 0x04, "1000BASE-CX" }, + { 0x02, "1000BASE-LX" }, + { 0x01, "1000BASE-SX" }, + { 0, NULL } +}; + +/* FC link length, byte 7 */ +static struct _nv fc_len[] = { + { 0x80, "very long distance" }, + { 0x40, "short distance" }, + { 0x20, "intermediate distance" }, + { 0x10, "long distance" }, + { 0x08, "medium distance" }, + { 0, NULL } +}; + +/* Channel/Cable technology, byte 7-8 */ +static struct _nv cab_tech[] = { + { 0x0400, "Shortwave laser (SA)" }, + { 0x0200, "Longwave laser (LC)" }, + { 0x0100, "Electrical inter-enclosure (EL)" }, + { 0x80, "Electrical intra-enclosure (EL)" }, + { 0x40, "Shortwave laser (SN)" }, + { 0x20, "Shortwave laser (SL)" }, + { 0x10, "Longwave laser (LL)" }, + { 0x08, "Active Cable" }, + { 0x04, "Passive Cable" }, + { 0, NULL } +}; + +/* FC Transmission media, byte 9 */ +static struct _nv fc_media[] = { + { 0x80, "Twin Axial Pair" }, + { 0x40, "Twisted Pair" }, + { 0x20, "Miniature Coax" }, + { 0x10, "Viao Coax" }, + { 0x08, "Miltimode, 62.5um" }, + { 0x04, "Multimode, 50um" }, + { 0x02, "" }, + { 0x01, "Single Mode" }, + { 0, NULL } +}; + +/* FC Speed, byte 10 */ +static struct _nv fc_speed[] = { + { 0x80, "1200 MBytes/sec" }, + { 0x40, "800 MBytes/sec" }, + { 0x20, "1600 MBytes/sec" }, + { 0x10, "400 MBytes/sec" }, + { 0x08, "3200 MBytes/sec" }, + { 0x04, "200 MBytes/sec" }, + { 0x01, "100 MBytes/sec" }, + { 0, NULL } +}; + +static void +printf_sfp_transceiver_descr(struct i2c_info *ii, char *buf, size_t size) +{ + char xbuf[12]; + const char *tech_class, *tech_len, *tech_tech, *tech_media, *tech_speed; + + tech_class = NULL; + tech_len = NULL; + tech_tech = NULL; + tech_media = NULL; + tech_speed = NULL; + + /* Read bytes 3-10 at once */ + ii->f(ii, SFP_ADDR_MSA, 3, 8, &xbuf[3]); + + /* Check 10G first */ + tech_class = find_zero_bit(eth_10g, xbuf[3], 1); + if (tech_class == NULL) { + /* No match. Try 1G */ + tech_class = find_zero_bit(eth_compat, xbuf[6], 1); + } + + tech_len = find_zero_bit(fc_len, xbuf[7], 1); + tech_tech = find_zero_bit(cab_tech, xbuf[7] << 8 | xbuf[8], 2); + tech_media = find_zero_bit(fc_media, xbuf[9], 1); + tech_speed = find_zero_bit(fc_speed, xbuf[10], 1); + + printf("Class: %s\n", tech_class); + printf("Length: %s\n", tech_len); + printf("Tech: %s\n", tech_tech); + printf("Media: %s\n", tech_media); + printf("Speed: %s\n", tech_speed); +} + +static void +get_sfp_transceiver_class(struct i2c_info *ii, char *buf, size_t size) +{ + const char *tech_class; + uint8_t code; + + /* Check 10G Ethernet/IB first */ + ii->f(ii, SFP_ADDR_MSA, SFP_MSA_TRANSCEIVER_CLASS, 1, (caddr_t)&code); + tech_class = find_zero_bit(eth_10g, code, 1); + if (tech_class == NULL) { + /* No match. Try Ethernet 1G */ + ii->f(ii, SFP_ADDR_MSA, 6, 1, (caddr_t)&code); + tech_class = find_zero_bit(eth_compat, code, 1); + } + + if (tech_class == NULL) + tech_class = "Unknown"; + + snprintf(buf, size, "%s", tech_class); +} + + +static void +get_sfp_vendor_name(struct i2c_info *ii, char *buf, size_t size) +{ + char xbuf[17], *p; + + memset(xbuf, 0, sizeof(xbuf)); + /* ASCII String, right-padded with 0x20 */ + ii->f(ii, SFP_ADDR_MSA, SFP_MSA_VENDOR_NAME, 16, xbuf); + for (p = &xbuf[16]; *(p - 1) == 0x20; p--) + ; + *p = '\0'; + + snprintf(buf, size, "%s", xbuf); +} + +static void +get_sfp_vendor_pn(struct i2c_info *ii, char *buf, size_t size) +{ + char xbuf[17], *p; + + memset(xbuf, 0, sizeof(xbuf)); + /* ASCII String, right-padded with 0x20 */ + ii->f(ii, SFP_ADDR_MSA, SFP_MSA_VENDOR_PN, 16, xbuf); + for (p = &xbuf[16]; *(p - 1) == 0x20; p--) + ; + *p = '\0'; + + snprintf(buf, size, "%s", xbuf); +} + +static void +get_sfp_vendor_sn(struct i2c_info *ii, char *buf, size_t size) +{ + char xbuf[17], *p; + + memset(xbuf, 0, sizeof(xbuf)); + /* ASCII String, right-padded with 0x20 */ + ii->f(ii, SFP_ADDR_MSA, SFP_MSA_VENDOR_SN, 16, xbuf); + for (p = &xbuf[16]; *(p - 1) == 0x20; p--) + ; + *p = '\0'; + snprintf(buf, size, "%s", xbuf); +} + +static void +get_sfp_vendor_date(struct i2c_info *ii, char *buf, size_t size) +{ + char xbuf[6]; + + memset(xbuf, 0, sizeof(xbuf)); + /* Date code, see Table 3.8 for description */ + ii->f(ii, SFP_ADDR_MSA, SFP_MSA_VENDOR_DATE, 6, xbuf); + snprintf(buf, size, "20%c%c-%c%c-%c%c", xbuf[0], xbuf[1], + xbuf[2], xbuf[3], xbuf[4], xbuf[5]); +} + +static void +print_sfp_vendor(struct i2c_info *ii, char *buf, size_t size) +{ + char xbuf[80]; + + memset(xbuf, 0, sizeof(xbuf)); + get_sfp_vendor_name(ii, xbuf, 20); + get_sfp_vendor_pn(ii, &xbuf[20], 20); + get_sfp_vendor_sn(ii, &xbuf[40], 20); + get_sfp_vendor_date(ii, &xbuf[60], 20); + + snprintf(buf, size, "vendor: %s PN: %s SN: %s DATE: %s", + xbuf, &xbuf[20], &xbuf[40], &xbuf[60]); +} + +static void +get_sfp_temp(struct i2c_info *ii, char *buf, size_t size) +{ + char xbuf[2]; + + int8_t major; + uint8_t minor; + int k; + + memset(xbuf, 0, sizeof(xbuf)); + ii->f(ii, SFP_ADDR_DDM, SFP_DDM_TEMP, 2, xbuf); + + /* Convert temperature to string according to table 3.13 */ + major = (int8_t)xbuf[0]; + minor = (uint8_t)buf[1]; + k = minor * 1000 / 256; + + snprintf(buf, size, "%d.%d C", major, k / 100); +} + +static void +convert_power(struct i2c_info *ii, char *xbuf, char *buf, size_t size) +{ + uint16_t mW; + double dbm; + + mW = ((uint8_t)xbuf[0] << 8) + (uint8_t)xbuf[1]; + + /* Convert mw to dbm */ + dbm = 10.0 * log10(1.0 * mW / 10000); + + /* Table 3.9, bit 5 is set, internally calibrated */ + if ((ii->diag_type & 0x20) != 0) { + snprintf(buf, size, "%d.%02d mW (%.2f dBm)", + mW / 10000, (mW % 10000) / 100, dbm); + } +} + +static void +get_sfp_rx_power(struct i2c_info *ii, char *buf, size_t size) +{ + char xbuf[2]; + + memset(xbuf, 0, sizeof(xbuf)); + ii->f(ii, SFP_ADDR_DDM, SFP_DDM_RXPOWER, 2, xbuf); + convert_power(ii, xbuf, buf, size); +} + +static void +get_sfp_tx_power(struct i2c_info *ii, char *buf, size_t size) +{ + char xbuf[2]; + + memset(xbuf, 0, sizeof(xbuf)); + ii->f(ii, SFP_ADDR_DDM, SFP_DDM_TXPOWER, 2, xbuf); + convert_power(ii, xbuf, buf, size); +} + +/* Intel ixgbe-specific structures and handlers */ +struct ixgbe_i2c_req { + uint8_t dev_addr; + uint8_t offset; + uint8_t len; + uint8_t data[8]; +}; +#define SIOCGI2C SIOCGIFGENERIC + +static int +read_i2c_ixgbe(struct i2c_info *ii, uint8_t addr, uint8_t off, uint8_t len, + caddr_t buf) +{ + struct ixgbe_i2c_req ixreq; + int i; + + if (ii->error != 0) + return (ii->error); + + ii->ifr->ifr_data = (caddr_t)&ixreq; + + memset(&ixreq, 0, sizeof(ixreq)); + ixreq.dev_addr = addr; + + for (i = 0; i < len; i += 1) { + ixreq.offset = off + i; + ixreq.len = 1; + + if (ioctl(ii->s, SIOCGI2C, ii->ifr) != 0) { + ii->error = errno; + return (errno); + } + memcpy(&buf[i], ixreq.data, 1); + } + + return (0); +} + +void +sfp_status(int s, struct ifreq *ifr, int verbose) +{ + struct i2c_info ii; + char buf[80], buf2[40], buf3[40]; + + /* + * Check if we have i2c support for particular driver. + * TODO: Determine driver by original name. + */ + memset(&ii, 0, sizeof(ii)); + if (strncmp(ifr->ifr_name, "ix", 2) == 0) { + ii.f = read_i2c_ixgbe; + } else + return; + + /* Prepare necessary into to pass to NIC handler */ + ii.s = s; + ii.ifr = ifr; + + /* Read diagnostic monitoring type */ + ii.f(&ii, SFP_ADDR_MSA, SFP_MSA_DMONTYPE, 1, (caddr_t)&ii.diag_type); + + /* Transceiver type */ + get_sfp_identifier(&ii, buf, sizeof(buf)); + get_sfp_transceiver_class(&ii, buf2, sizeof(buf2)); + get_sfp_connector(&ii, buf3, sizeof(buf3)); + if (ii.error == 0) + printf("\ti2c: %s %s (%s)\n", buf, buf2, buf3); + if (verbose > 2) + printf_sfp_transceiver_descr(&ii, buf, sizeof(buf)); + print_sfp_vendor(&ii, buf, sizeof(buf)); + if (ii.error == 0) + printf("\t%s\n", buf); + /* + * Request current measurements iff they are implemented: + * Bit 6 must be set. + */ + if ((ii.diag_type & 0x40) != 0) { + get_sfp_temp(&ii, buf, sizeof(buf)); + get_sfp_rx_power(&ii, buf2, sizeof(buf2)); + get_sfp_tx_power(&ii, buf3, sizeof(buf3)); + printf("\tTemp: %s RX: %s TX: %s\n", buf, buf2, buf3); + } + + close(s); +} +
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