OpenSolaris_b135/lib/libdladm/common/libdlether.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <sys/types.h>
#include <libdladm_impl.h>
#include <libdllink.h>
#include <libdlstat.h>
#include <libdlether.h>
/*
* Ethernet administration library.
*/
/*
* kstat names for extracting attributes.
*/
typedef struct ether_spdx_s {
dladm_ether_spdx_t eth_spdx;
char *eth_spdx_stat_name;
} ether_spdx_t;
static ether_spdx_t cap_spdx[] = {
{{1000, LINK_DUPLEX_FULL}, "cap_1000fdx"},
{{1000, LINK_DUPLEX_HALF}, "cap_1000hdx"},
{{100, LINK_DUPLEX_FULL}, "cap_100fdx"},
{{100, LINK_DUPLEX_HALF}, "cap_100hdx"},
{{10, LINK_DUPLEX_FULL}, "cap_10fdx"},
{{10, LINK_DUPLEX_HALF}, "cap_10hdx"},
{{0, LINK_DUPLEX_UNKNOWN}, NULL}
};
static ether_spdx_t adv_cap_spdx[] = {
{{1000, LINK_DUPLEX_FULL}, "adv_cap_1000fdx"},
{{1000, LINK_DUPLEX_HALF}, "adv_cap_1000hdx"},
{{100, LINK_DUPLEX_FULL}, "adv_cap_100fdx"},
{{100, LINK_DUPLEX_HALF}, "adv_cap_100hdx"},
{{10, LINK_DUPLEX_FULL}, "adv_cap_10fdx"},
{{10, LINK_DUPLEX_HALF}, "adv_cap_10hdx"},
{{0, LINK_DUPLEX_UNKNOWN}, NULL}
};
static ether_spdx_t lp_cap_spdx[] = {
{{1000, LINK_DUPLEX_FULL}, "lp_cap_1000fdx"},
{{1000, LINK_DUPLEX_HALF}, "lp_cap_1000hdx"},
{{100, LINK_DUPLEX_FULL}, "lp_cap_100fdx"},
{{100, LINK_DUPLEX_HALF}, "lp_cap_100hdx"},
{{10, LINK_DUPLEX_FULL}, "lp_cap_10fdx"},
{{10, LINK_DUPLEX_HALF}, "lp_cap_10hdx"},
{{0, LINK_DUPLEX_UNKNOWN}, NULL}
};
typedef struct attr_kstat_s {
char *autoneg_stat;
char *pause_stat;
char *asmpause_stat;
char *fault_stat;
ether_spdx_t *spdx_stat;
} attr_kstat_t;
static attr_kstat_t attrstat[] = {
{"link_autoneg", /* current */
"link_pause", "link_asmpause", NULL,
NULL},
{"cap_autoneg", /* capable */
"cap_pause", "cap_asmpause", "cap_rem_fault",
cap_spdx},
{"adv_cap_autoneg", /* advertised */
"adv_cap_pause", "adv_cap_asmpause", "adv_rem_fault",
adv_cap_spdx},
{"lp_cap_autoneg", /* peer advertised */
"lp_cap_pause", "lp_cap_asmpause", "lp_rem_fault",
lp_cap_spdx}
};
/*
* Get the speed-duplex stats specified in the ether_spdx_t table passed in
* by querying the appropriate kstat for each entry in the table.
*/
static dladm_status_t
i_dladm_get_spdx(dladm_handle_t handle, datalink_id_t linkid,
dladm_ether_attr_t *eattr, ether_spdx_t *spdx_stat)
{
int i, nspdx = 0;
uint32_t speed;
dladm_status_t status;
void *ptr;
eattr->le_spdx = NULL;
for (i = 0; spdx_stat[i].eth_spdx_stat_name != NULL; i++) {
if ((status = dladm_get_single_mac_stat(handle, linkid,
spdx_stat[i].eth_spdx_stat_name,
KSTAT_DATA_UINT32, &speed)) != DLADM_STATUS_OK) {
if (status == DLADM_STATUS_NOTFOUND) {
/*
* Missing statistic.
* Skip this one and try the rest.
*/
continue;
} else {
free(eattr->le_spdx);
eattr->le_num_spdx = 0;
return (status);
}
}
if (speed == 0)
continue;
nspdx++;
ptr = realloc(eattr->le_spdx,
nspdx * sizeof (dladm_ether_spdx_t));
if (ptr != NULL) {
eattr->le_spdx = ptr;
} else {
free(eattr->le_spdx);
eattr->le_num_spdx = 0;
return (DLADM_STATUS_NOMEM);
}
eattr->le_spdx[nspdx - 1] = spdx_stat[i].eth_spdx;
}
eattr->le_num_spdx = nspdx;
return (DLADM_STATUS_OK);
}
/*
* Returns "yes" or "no" based on the autonegotion capabilities
* for the parameter type indicated by ptype. The permissible
* values for ptype are CURRENT, CAPABLE, ADV, PEERADV.
*/
char *
dladm_ether_autoneg2str(char *buf, size_t buflen, dladm_ether_info_t *eattr,
int ptype)
{
boolean_t autoneg = eattr->lei_attr[ptype].le_autoneg;
(void) strlcpy(buf, (autoneg ? "yes" : "no"), buflen);
return (buf);
}
/*
* Returns {"bi", "tx", "none"} based on the flow-control capabilities
* for the parameter type indicated by ptype. The permissible
* values for ptype are CURRENT, CAPABLE, ADV, PEERADV.
*/
char *
dladm_ether_pause2str(char *buf, size_t buflen, dladm_ether_info_t *eattr,
int ptype)
{
boolean_t pause = eattr->lei_attr[ptype].le_pause;
boolean_t asmpause = eattr->lei_attr[ptype].le_asmpause;
if (pause)
(void) strlcpy(buf, "bi", buflen);
else if (asmpause)
(void) strlcpy(buf, "tx", buflen);
else
(void) strlcpy(buf, "none", buflen);
return (buf);
}
/*
* For a given param type, parse the list of speed-duplex pairs in
* the dladm_ether_info_t and return a comma-separated string formatted
* as <speed><speed-unit-char>-<duplex-chars> where <speed> is the value of
* speed, in units specifid by the <speed-unit-char> which is one
* of 'M' (Mbits/sec) or 'G' (Gigabits/sec). The permissible values of
* <duplex-chars> are 'u' (indicating duplex is "unknown") or one/both of
* 'f', 'h' (indicating full-duplex and half-duplex respectively)
*/
extern char *
dladm_ether_spdx2str(char *buf, size_t buflen, dladm_ether_info_t *eattr,
int ptype)
{
int i, j;
boolean_t is_full, is_half;
int speed;
char speed_unit;
char tmpbuf[DLADM_STRSIZE];
dladm_ether_spdx_t *spdx;
uint32_t nspdx;
spdx = eattr->lei_attr[ptype].le_spdx;
nspdx = eattr->lei_attr[ptype].le_num_spdx;
for (i = 0; i < nspdx; i++) {
speed = spdx[i].lesd_speed;
/*
* if we have already covered this speed for
* the <other>-duplex case before this, skip it
*/
for (j = 0; j < i; j++) {
if (speed == spdx[j].lesd_speed)
break;
}
if (j < i)
continue;
if (speed >= 1000) {
speed = speed/1000;
speed_unit = 'G';
} else {
speed_unit = 'M';
}
(void) snprintf(tmpbuf, DLADM_STRSIZE, "%d%c",
speed, speed_unit);
if (i > 0)
(void) strncat(buf, ",", buflen);
(void) strncat(buf, tmpbuf, buflen);
is_full = is_half = B_FALSE;
/*
* Find all the supported duplex values for this speed.
*/
for (j = 0; j < nspdx; j++) {
if (spdx[j].lesd_speed != spdx[i].lesd_speed)
continue;
if (spdx[j].lesd_duplex == LINK_DUPLEX_FULL)
is_full = B_TRUE;
if (spdx[j].lesd_duplex == LINK_DUPLEX_HALF)
is_half = B_TRUE;
}
if (is_full && is_half)
(void) strncat(buf, "-fh", buflen);
else if (is_full)
(void) strncat(buf, "-f", buflen);
else if (is_half)
(void) strncat(buf, "-h", buflen);
}
return (buf);
}
/*
* Extract Ethernet attributes of the link specified by linkid.
* Information for the CURRENT, CAPABLE, ADV and PEERADV parameter
* types is extracted into the lei_attr[] entries in the dladm_ether_info_t.
* On succesful return, the memory allocated in this function should be
* freed by calling dladm_ether_info_done().
*/
extern dladm_status_t
dladm_ether_info(dladm_handle_t handle, datalink_id_t linkid,
dladm_ether_info_t *eattr)
{
uint32_t autoneg, pause, asmpause, fault;
uint64_t sp64;
dladm_status_t status;
int i;
link_duplex_t link_duplex;
bzero(eattr, sizeof (*eattr));
status = dladm_datalink_id2info(handle, linkid, NULL, NULL, NULL,
eattr->lei_linkname, sizeof (eattr->lei_linkname));
if (status != DLADM_STATUS_OK)
goto bail;
/* get current values of speed, duplex, state of link */
eattr->lei_attr[CURRENT].le_num_spdx = 1;
eattr->lei_attr[CURRENT].le_spdx = malloc(sizeof (dladm_ether_spdx_t));
if (eattr->lei_attr[CURRENT].le_spdx == NULL) {
status = DLADM_STATUS_NOMEM;
goto bail;
}
if ((status = dladm_get_single_mac_stat(handle, linkid, "ifspeed",
KSTAT_DATA_UINT64, &sp64)) != DLADM_STATUS_OK)
goto bail;
if ((status = dladm_get_single_mac_stat(handle, linkid, "link_duplex",
KSTAT_DATA_UINT32, &link_duplex)) != DLADM_STATUS_OK)
goto bail;
eattr->lei_attr[CURRENT].le_spdx->lesd_speed = (int)(sp64/1000000ull);
eattr->lei_attr[CURRENT].le_spdx->lesd_duplex = link_duplex;
status = i_dladm_get_state(handle, linkid, &eattr->lei_state);
if (status != DLADM_STATUS_OK)
goto bail;
/* get the auto, pause, asmpause, fault values */
for (i = CURRENT; i <= PEERADV; i++) {
status = dladm_get_single_mac_stat(handle, linkid,
attrstat[i].autoneg_stat, KSTAT_DATA_UINT32, &autoneg);
if (status != DLADM_STATUS_OK)
goto bail;
status = dladm_get_single_mac_stat(handle, linkid,
attrstat[i].pause_stat, KSTAT_DATA_UINT32, &pause);
if (status != DLADM_STATUS_OK)
goto bail;
status = dladm_get_single_mac_stat(handle, linkid,
attrstat[i].asmpause_stat, KSTAT_DATA_UINT32, &asmpause);
if (status != DLADM_STATUS_OK)
goto bail;
eattr->lei_attr[i].le_autoneg = (autoneg != 0);
eattr->lei_attr[i].le_pause = (pause != 0);
eattr->lei_attr[i].le_asmpause = (asmpause != 0);
if (i == CURRENT)
continue;
status = dladm_get_single_mac_stat(handle, linkid,
attrstat[i].fault_stat, KSTAT_DATA_UINT32, &fault);
if (status != DLADM_STATUS_OK)
goto bail;
eattr->lei_attr[i].le_fault = (pause != 0);
/* get all the supported speed/duplex values */
status = i_dladm_get_spdx(handle, linkid, &eattr->lei_attr[i],
attrstat[i].spdx_stat);
if (status != DLADM_STATUS_OK)
goto bail;
}
eattr->lei_attr[CURRENT].le_fault =
eattr->lei_attr[ADV].le_fault || eattr->lei_attr[PEERADV].le_fault;
bail:
if (status != DLADM_STATUS_OK)
dladm_ether_info_done(eattr);
return (status);
}
extern void
dladm_ether_info_done(dladm_ether_info_t *eattr)
{
int i;
for (i = CURRENT; i <= PEERADV; i++)
free(eattr->lei_attr[i].le_spdx);
}