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
This commit is contained in:
Alexander V. Chernikov
parent
4bf50f18eb
commit
f732123e6b
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=270064
@ -33,6 +33,9 @@ SRCS+= ifvlan.c # SIOC[GS]ETVLAN support
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SRCS+= ifgre.c # GRE keys etc
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SRCS+= ifgif.c # GIF reversed header workaround
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SRCS+= sfp.c # SFP/SFP+ information
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LDADD+= -lm
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SRCS+= ifieee80211.c regdomain.c # SIOC[GS]IEEE80211 support
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DPADD+= ${LIBBSDXML} ${LIBSBUF}
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LDADD+= -lbsdxml -lsbuf
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@ -1011,6 +1011,9 @@ status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
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if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
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printf("%s", ifs.ascii);
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if (verbose > 0)
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sfp_status(s, &ifr, verbose);
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close(s);
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return;
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}
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@ -143,6 +143,8 @@ void ifmaybeload(const char *name);
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typedef void clone_callback_func(int, struct ifreq *);
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void clone_setdefcallback(const char *, clone_callback_func *);
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void sfp_status(int s, struct ifreq *ifr, int verbose);
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/*
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* XXX expose this so modules that neeed to know of any pending
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* operations on ifmedia can avoid cmd line ordering confusion.
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543
sbin/ifconfig/sfp.c
Normal file
543
sbin/ifconfig/sfp.c
Normal file
@ -0,0 +1,543 @@
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/*-
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* Copyright (c) 2014 Alexander V. Chernikov. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <math.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "ifconfig.h"
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/* 2wire addresses */
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#define SFP_ADDR_MSA 0xA0 /* Identification data */
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#define SFP_ADDR_DDM 0xA2 /* digital monitoring interface */
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/* Definitions from Table 3.1 */
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#define SFP_MSA_IDENTIFIER 0 /* Type of transceiver (T. 3.2), 1B */
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#define SFP_MSA_CONNECTOR 2 /* Connector type (T. 3.3), 1B */
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#define SFP_MSA_TRANSCEIVER_CLASS 3 /* Ethernet/Sonet/IB code, 1B */
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#define SFP_MSA_VENDOR_NAME 20 /* ASCII vendor name, 16B */
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#define SFP_MSA_VENDOR_PN 40 /* ASCII vendor partnum, 16B */
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#define SFP_MSA_VENDOR_SN 68 /* ASCII vendor serialnum, 16B */
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#define SFP_MSA_VENDOR_DATE 84 /* Vendor's date code, 8B */
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#define SFP_MSA_DMONTYPE 92 /* Type of disagnostic monitoring, 1B */
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/* Definitions from table 3.17 */
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#define SFP_DDM_TEMP 96 /* Module temperature, 2B */
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#define SFP_DDM_TXPOWER 102 /* Measured TX output power, 2B */
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#define SFP_DDM_RXPOWER 104 /* Measured RX input power, 2B */
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struct i2c_info;
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typedef int (read_i2c)(struct i2c_info *ii, uint8_t addr, uint8_t off,
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uint8_t len, caddr_t buf);
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struct i2c_info {
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int s;
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int error;
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struct ifreq *ifr;
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read_i2c *f;
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uint8_t diag_type;
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char *textbuf;
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size_t bufsize;
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};
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struct _nv {
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int v;
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const char *n;
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};
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const char *find_value(struct _nv *x, int value);
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const char *find_zero_bit(struct _nv *x, int value, int sz);
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/* SFF-8472 Rev. 11.4 table 3.2: Identifier values */
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static struct _nv ids[] = {
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{ 0x00, "Unknown" },
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{ 0x01, "GBIC" },
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{ 0x02, "SFF" },
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{ 0x03, "SFP/SFP+" },
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{ 0x04, "300 pin XBI" },
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{ 0x05, "Xenpak" },
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{ 0x06, "XFP" },
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{ 0x07, "XFF" },
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{ 0x08, "XFP-E" },
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{ 0x09, "XPak" },
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{ 0x0A, "X2" },
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{ 0x0B, "DWDM-SFP/DWDM-SFP+" },
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{ 0x0C, "QSFP" },
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{ 0, NULL, },
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};
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/* SFF-8472 Rev. 11.4 table 3.4: Connector values */
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static struct _nv conn[] = {
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{ 0x00, "Unknown" },
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{ 0x01, "SC" },
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{ 0x02, "Fibre Channel Style 1 copper" },
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{ 0x03, "Fibre Channel Style 2 copper" },
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{ 0x04, "BNC/TNC" },
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{ 0x05, "Fibre Channel coaxial" },
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{ 0x06, "FiberJack" },
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{ 0x07, "LC" },
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{ 0x08, "MT-RJ" },
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{ 0x09, "MU" },
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{ 0x0A, "SG" },
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{ 0x0B, "Optical pigtail" },
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{ 0x0C, "MPO Parallel Optic" },
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{ 0x20, "HSSDC II" },
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{ 0x21, "Copper pigtail" },
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{ 0x22, "RJ45" },
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{ 0, NULL }
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};
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const char *
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find_value(struct _nv *x, int value)
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{
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for (; x->n != NULL; x++)
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if (x->v == value)
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return (x->n);
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return (NULL);
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}
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const char *
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find_zero_bit(struct _nv *x, int value, int sz)
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{
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int v, m;
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const char *s;
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v = 1;
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for (v = 1, m = 1 << (8 * sz); v < m; v *= 2) {
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if ((value & v) == 0)
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continue;
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if ((s = find_value(x, value & v)) != NULL) {
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value &= ~v;
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return (s);
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}
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}
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return (NULL);
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}
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static void
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get_sfp_identifier(struct i2c_info *ii, char *buf, size_t size)
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{
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const char *x;
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uint8_t data;
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ii->f(ii, SFP_ADDR_MSA, SFP_MSA_IDENTIFIER, 1, (caddr_t)&data);
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if ((x = find_value(ids, data)) == NULL) {
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if (data > 0x80)
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x = "Vendor specific";
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else
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x = "Reserved";
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}
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snprintf(buf, size, "%s", x);
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}
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static void
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get_sfp_connector(struct i2c_info *ii, char *buf, size_t size)
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{
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const char *x;
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uint8_t data;
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ii->f(ii, SFP_ADDR_MSA, SFP_MSA_CONNECTOR, 1, (caddr_t)&data);
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if ((x = find_value(conn, data)) == NULL) {
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if (data >= 0x0D && data <= 0x1F)
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x = "Unallocated";
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else if (data >= 0x23 && data <= 0x7F)
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x = "Unallocated";
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else
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x = "Vendor specific";
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}
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snprintf(buf, size, "%s", x);
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}
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/* SFF-8472 Rev. 11.4 table 3.5: Transceiver codes */
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/* 10G Ethernet compliance codes, byte 3 */
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static struct _nv eth_10g[] = {
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{ 0x80, "10G Base-ER" },
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{ 0x40, "10G Base-LRM" },
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{ 0x20, "10G Base-LR" },
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{ 0x10, "10G Base-SR" },
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{ 0x08, "1X SX" },
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{ 0x04, "1X LX" },
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{ 0x02, "1X Copper Active" },
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{ 0x01, "1X Copper Passive" },
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{ 0, NULL }
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};
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/* Ethernet compliance codes, byte 6 */
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static struct _nv eth_compat[] = {
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{ 0x80, "BASE-PX" },
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{ 0x40, "BASE-BX10" },
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{ 0x20, "100BASE-FX" },
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{ 0x10, "100BASE-LX/LX10" },
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{ 0x08, "1000BASE-T" },
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{ 0x04, "1000BASE-CX" },
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{ 0x02, "1000BASE-LX" },
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{ 0x01, "1000BASE-SX" },
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{ 0, NULL }
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};
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/* FC link length, byte 7 */
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static struct _nv fc_len[] = {
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{ 0x80, "very long distance" },
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{ 0x40, "short distance" },
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{ 0x20, "intermediate distance" },
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{ 0x10, "long distance" },
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{ 0x08, "medium distance" },
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{ 0, NULL }
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};
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/* Channel/Cable technology, byte 7-8 */
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static struct _nv cab_tech[] = {
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{ 0x0400, "Shortwave laser (SA)" },
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{ 0x0200, "Longwave laser (LC)" },
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{ 0x0100, "Electrical inter-enclosure (EL)" },
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{ 0x80, "Electrical intra-enclosure (EL)" },
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{ 0x40, "Shortwave laser (SN)" },
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{ 0x20, "Shortwave laser (SL)" },
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{ 0x10, "Longwave laser (LL)" },
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{ 0x08, "Active Cable" },
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{ 0x04, "Passive Cable" },
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{ 0, NULL }
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};
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/* FC Transmission media, byte 9 */
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static struct _nv fc_media[] = {
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{ 0x80, "Twin Axial Pair" },
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{ 0x40, "Twisted Pair" },
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{ 0x20, "Miniature Coax" },
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{ 0x10, "Viao Coax" },
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{ 0x08, "Miltimode, 62.5um" },
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{ 0x04, "Multimode, 50um" },
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{ 0x02, "" },
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{ 0x01, "Single Mode" },
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{ 0, NULL }
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};
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/* FC Speed, byte 10 */
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static struct _nv fc_speed[] = {
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{ 0x80, "1200 MBytes/sec" },
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{ 0x40, "800 MBytes/sec" },
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{ 0x20, "1600 MBytes/sec" },
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{ 0x10, "400 MBytes/sec" },
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{ 0x08, "3200 MBytes/sec" },
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{ 0x04, "200 MBytes/sec" },
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{ 0x01, "100 MBytes/sec" },
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{ 0, NULL }
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};
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static void
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printf_sfp_transceiver_descr(struct i2c_info *ii, char *buf, size_t size)
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{
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char xbuf[12];
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const char *tech_class, *tech_len, *tech_tech, *tech_media, *tech_speed;
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tech_class = NULL;
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tech_len = NULL;
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tech_tech = NULL;
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tech_media = NULL;
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tech_speed = NULL;
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/* Read bytes 3-10 at once */
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ii->f(ii, SFP_ADDR_MSA, 3, 8, &xbuf[3]);
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/* Check 10G first */
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tech_class = find_zero_bit(eth_10g, xbuf[3], 1);
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if (tech_class == NULL) {
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/* No match. Try 1G */
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tech_class = find_zero_bit(eth_compat, xbuf[6], 1);
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}
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tech_len = find_zero_bit(fc_len, xbuf[7], 1);
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tech_tech = find_zero_bit(cab_tech, xbuf[7] << 8 | xbuf[8], 2);
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tech_media = find_zero_bit(fc_media, xbuf[9], 1);
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tech_speed = find_zero_bit(fc_speed, xbuf[10], 1);
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printf("Class: %s\n", tech_class);
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printf("Length: %s\n", tech_len);
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printf("Tech: %s\n", tech_tech);
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printf("Media: %s\n", tech_media);
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printf("Speed: %s\n", tech_speed);
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}
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static void
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get_sfp_transceiver_class(struct i2c_info *ii, char *buf, size_t size)
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{
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const char *tech_class;
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uint8_t code;
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/* Check 10G Ethernet/IB first */
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ii->f(ii, SFP_ADDR_MSA, SFP_MSA_TRANSCEIVER_CLASS, 1, (caddr_t)&code);
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tech_class = find_zero_bit(eth_10g, code, 1);
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if (tech_class == NULL) {
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/* No match. Try Ethernet 1G */
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ii->f(ii, SFP_ADDR_MSA, 6, 1, (caddr_t)&code);
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tech_class = find_zero_bit(eth_compat, code, 1);
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}
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if (tech_class == NULL)
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tech_class = "Unknown";
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snprintf(buf, size, "%s", tech_class);
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}
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static void
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get_sfp_vendor_name(struct i2c_info *ii, char *buf, size_t size)
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{
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char xbuf[17], *p;
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memset(xbuf, 0, sizeof(xbuf));
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/* ASCII String, right-padded with 0x20 */
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ii->f(ii, SFP_ADDR_MSA, SFP_MSA_VENDOR_NAME, 16, xbuf);
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for (p = &xbuf[16]; *(p - 1) == 0x20; p--)
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;
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*p = '\0';
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snprintf(buf, size, "%s", xbuf);
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}
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static void
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get_sfp_vendor_pn(struct i2c_info *ii, char *buf, size_t size)
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{
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char xbuf[17], *p;
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memset(xbuf, 0, sizeof(xbuf));
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/* ASCII String, right-padded with 0x20 */
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ii->f(ii, SFP_ADDR_MSA, SFP_MSA_VENDOR_PN, 16, xbuf);
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for (p = &xbuf[16]; *(p - 1) == 0x20; p--)
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;
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*p = '\0';
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snprintf(buf, size, "%s", xbuf);
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}
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static void
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get_sfp_vendor_sn(struct i2c_info *ii, char *buf, size_t size)
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{
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char xbuf[17], *p;
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memset(xbuf, 0, sizeof(xbuf));
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/* ASCII String, right-padded with 0x20 */
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ii->f(ii, SFP_ADDR_MSA, SFP_MSA_VENDOR_SN, 16, xbuf);
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for (p = &xbuf[16]; *(p - 1) == 0x20; p--)
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;
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*p = '\0';
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snprintf(buf, size, "%s", xbuf);
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}
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static void
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get_sfp_vendor_date(struct i2c_info *ii, char *buf, size_t size)
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{
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char xbuf[6];
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memset(xbuf, 0, sizeof(xbuf));
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/* Date code, see Table 3.8 for description */
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ii->f(ii, SFP_ADDR_MSA, SFP_MSA_VENDOR_DATE, 6, xbuf);
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snprintf(buf, size, "20%c%c-%c%c-%c%c", xbuf[0], xbuf[1],
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xbuf[2], xbuf[3], xbuf[4], xbuf[5]);
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}
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static void
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print_sfp_vendor(struct i2c_info *ii, char *buf, size_t size)
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{
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char xbuf[80];
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memset(xbuf, 0, sizeof(xbuf));
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get_sfp_vendor_name(ii, xbuf, 20);
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get_sfp_vendor_pn(ii, &xbuf[20], 20);
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get_sfp_vendor_sn(ii, &xbuf[40], 20);
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get_sfp_vendor_date(ii, &xbuf[60], 20);
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snprintf(buf, size, "vendor: %s PN: %s SN: %s DATE: %s",
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xbuf, &xbuf[20], &xbuf[40], &xbuf[60]);
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}
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static void
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get_sfp_temp(struct i2c_info *ii, char *buf, size_t size)
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{
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char xbuf[2];
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int8_t major;
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uint8_t minor;
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int k;
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memset(xbuf, 0, sizeof(xbuf));
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ii->f(ii, SFP_ADDR_DDM, SFP_DDM_TEMP, 2, xbuf);
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/* 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);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user