bge_ndd.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "sys/bge_impl.h"
#define BGE_DBG BGE_DBG_NDD /* debug flag for this code */
/*
* Property names
*/
static char transfer_speed_propname[] = "transfer-speed";
static char speed_propname[] = "speed";
static char duplex_propname[] = "full-duplex";
/*
* Notes:
* The first character of the <name> field encodes the read/write
* status of the parameter:
* '=' => read-only,
* '-' => read-only and forced to 0 on serdes
* '+' => read/write,
* '?' => read/write on copper, read-only and 0 on serdes
* '!' => invisible!
*
* For writable parameters, we check for a driver property with the
* same name; if found, and its value is in range, we initialise
* the parameter from the property, overriding the default in the
* table below.
*
* A NULL in the <name> field terminates the array.
*
* The <info> field is used here to provide the index of the
* parameter to be initialised; thus it doesn't matter whether
* this table is kept ordered or not.
*
* The <info> field in the per-instance copy, on the other hand,
* is used to count assignments so that we can tell when a magic
* parameter has been set via ndd (see bge_param_set()).
*/
static const nd_param_t nd_template[] = {
/* info min max init r/w+name */
/* Our hardware capabilities */
{ PARAM_AUTONEG_CAP, 0, 1, 1, "=autoneg_cap" },
{ PARAM_PAUSE_CAP, 0, 1, 1, "=pause_cap" },
{ PARAM_ASYM_PAUSE_CAP, 0, 1, 1, "=asym_pause_cap" },
{ PARAM_1000FDX_CAP, 0, 1, 1, "=1000fdx_cap" },
{ PARAM_1000HDX_CAP, 0, 1, 1, "=1000hdx_cap" },
{ PARAM_100T4_CAP, 0, 1, 0, "=100T4_cap" },
{ PARAM_100FDX_CAP, 0, 1, 1, "-100fdx_cap" },
{ PARAM_100HDX_CAP, 0, 1, 1, "-100hdx_cap" },
{ PARAM_10FDX_CAP, 0, 1, 1, "-10fdx_cap" },
{ PARAM_10HDX_CAP, 0, 1, 1, "-10hdx_cap" },
/* Our advertised capabilities */
{ PARAM_ADV_AUTONEG_CAP, 0, 1, 1, "+adv_autoneg_cap" },
{ PARAM_ADV_PAUSE_CAP, 0, 1, 1, "+adv_pause_cap" },
{ PARAM_ADV_ASYM_PAUSE_CAP, 0, 1, 1, "+adv_asym_pause_cap" },
{ PARAM_ADV_1000FDX_CAP, 0, 1, 1, "+adv_1000fdx_cap" },
{ PARAM_ADV_1000HDX_CAP, 0, 1, 1, "+adv_1000hdx_cap" },
{ PARAM_ADV_100T4_CAP, 0, 1, 0, "=adv_100T4_cap" },
{ PARAM_ADV_100FDX_CAP, 0, 1, 1, "?adv_100fdx_cap" },
{ PARAM_ADV_100HDX_CAP, 0, 1, 1, "?adv_100hdx_cap" },
{ PARAM_ADV_10FDX_CAP, 0, 1, 1, "?adv_10fdx_cap" },
{ PARAM_ADV_10HDX_CAP, 0, 1, 1, "?adv_10hdx_cap" },
/* Partner's advertised capabilities */
{ PARAM_LP_AUTONEG_CAP, 0, 1, 0, "-lp_autoneg_cap" },
{ PARAM_LP_PAUSE_CAP, 0, 1, 0, "-lp_pause_cap" },
{ PARAM_LP_ASYM_PAUSE_CAP, 0, 1, 0, "-lp_asym_pause_cap" },
{ PARAM_LP_1000FDX_CAP, 0, 1, 0, "-lp_1000fdx_cap" },
{ PARAM_LP_1000HDX_CAP, 0, 1, 0, "-lp_1000hdx_cap" },
{ PARAM_LP_100T4_CAP, 0, 1, 0, "-lp_100T4_cap" },
{ PARAM_LP_100FDX_CAP, 0, 1, 0, "-lp_100fdx_cap" },
{ PARAM_LP_100HDX_CAP, 0, 1, 0, "-lp_100hdx_cap" },
{ PARAM_LP_10FDX_CAP, 0, 1, 0, "-lp_10fdx_cap" },
{ PARAM_LP_10HDX_CAP, 0, 1, 0, "-lp_10hdx_cap" },
/* Current operating modes */
{ PARAM_LINK_STATUS, 0, 1, 0, "-link_status" },
{ PARAM_LINK_SPEED, 0, 1000, 0, "-link_speed" },
{ PARAM_LINK_DUPLEX, 0, 2, 0, "-link_duplex" },
{ PARAM_LINK_AUTONEG, 0, 1, 0, "-link_autoneg" },
{ PARAM_LINK_RX_PAUSE, 0, 1, 0, "-link_rx_pause" },
{ PARAM_LINK_TX_PAUSE, 0, 1, 0, "-link_tx_pause" },
/* Loopback status */
{ PARAM_LOOP_MODE, 0, 5, 0, "-loop_mode" },
/* MSI count */
{ PARAM_MSI_CNT, 0, 7, 0, "+msi_cnt" },
/* Terminator */
{ PARAM_COUNT, 0, 0, 0, NULL }
};
/* ============== NDD Support Functions =============== */
/*
* Extracts the value from the bge parameter array and prints
* the parameter value. cp points to the required parameter.
*/
static int
bge_param_get(queue_t *q, mblk_t *mp, caddr_t cp, cred_t *credp)
{
nd_param_t *ndp;
_NOTE(ARGUNUSED(q, credp))
ndp = (nd_param_t *)cp;
(void) mi_mpprintf(mp, "%d", ndp->ndp_val);
return (0);
}
/*
* Validates the request to set a BGE parameter to a specific value.
* If the request is OK, the parameter is set. Also the <info> field
* is incremented to show that the parameter was touched, even though
* it may have been set to the same value it already had.
*/
static int
bge_param_set(queue_t *q, mblk_t *mp, char *value, caddr_t cp, cred_t *credp)
{
nd_param_t *ndp;
long new_value;
char *end;
_NOTE(ARGUNUSED(q, mp, credp))
ndp = (nd_param_t *)cp;
new_value = mi_strtol(value, &end, 10);
if (end == value)
return (EINVAL);
if (new_value < ndp->ndp_min || new_value > ndp->ndp_max)
return (EINVAL);
ndp->ndp_val = new_value;
ndp->ndp_info += 1;
return (0);
}
/*
* Initialise the per-instance parameter array from the global prototype,
* and register each element with the named dispatch handler using nd_load()
*/
static int
bge_param_register(bge_t *bgep)
{
const nd_param_t *tmplp;
dev_info_t *dip;
nd_param_t *ndp;
caddr_t *nddpp;
pfi_t setfn;
char *nm;
int pval;
BGE_TRACE(("bge_param_register($%p)", (void *)bgep));
dip = bgep->devinfo;
nddpp = &bgep->nd_data_p;
ASSERT(*nddpp == NULL);
for (tmplp = nd_template; tmplp->ndp_name != NULL; ++tmplp) {
/*
* Copy the template from nd_template[] into the
* proper slot in the per-instance parameters,
* then register the parameter with nd_load()
*/
ndp = &bgep->nd_params[tmplp->ndp_info];
*ndp = *tmplp;
nm = &ndp->ndp_name[0];
setfn = bge_param_set;
if (bgep->chipid.flags & CHIP_FLAG_SERDES)
switch (*nm) {
default:
break;
case '-':
case '?':
ndp->ndp_val = 0;
setfn = NULL;
break;
}
switch (*nm) {
default:
case '!':
continue;
case '+':
case '?':
break;
case '=':
case '-':
setfn = NULL;
break;
}
if (!nd_load(nddpp, ++nm, bge_param_get, setfn, (caddr_t)ndp))
goto nd_fail;
/*
* If the parameter is writable, and there's a property
* with the same name, and its value is in range, we use
* it to initialise the parameter. If it exists but is
* out of range, it's ignored.
*/
if (setfn && BGE_PROP_EXISTS(dip, nm)) {
pval = BGE_PROP_GET_INT(dip, nm);
if (pval >= ndp->ndp_min && pval <= ndp->ndp_max)
ndp->ndp_val = pval;
}
}
BGE_DEBUG(("bge_param_register: OK"));
return (DDI_SUCCESS);
nd_fail:
BGE_DEBUG(("bge_param_register: FAILED at index %d [info %d]",
tmplp-nd_template, tmplp->ndp_info));
nd_free(nddpp);
return (DDI_FAILURE);
}
int
bge_nd_init(bge_t *bgep)
{
dev_info_t *dip;
int duplex;
int speed;
BGE_TRACE(("bge_nd_init($%p)", (void *)bgep));
/*
* Register all the per-instance properties, initialising
* them from the table above or from driver properties set
* in the .conf file
*/
if (bge_param_register(bgep) != DDI_SUCCESS)
return (-1);
/*
* The link speed may be forced to 10, 100 or 1000 Mbps using
* the property "transfer-speed". This may be done in OBP by
* using the command "apply transfer-speed=<speed> <device>".
* The speed may be 10, 100 or 1000 - any other value will be
* ignored. Note that this does *enables* autonegotiation, but
* restricts it to the speed specified by the property.
*/
dip = bgep->devinfo;
if (BGE_PROP_EXISTS(dip, transfer_speed_propname)) {
speed = BGE_PROP_GET_INT(dip, transfer_speed_propname);
bge_log(bgep, "%s property is %d",
transfer_speed_propname, speed);
switch (speed) {
case 1000:
bgep->param_adv_autoneg = 1;
bgep->param_adv_1000fdx = 1;
bgep->param_adv_1000hdx = 1;
bgep->param_adv_100fdx = 0;
bgep->param_adv_100hdx = 0;
bgep->param_adv_10fdx = 0;
bgep->param_adv_10hdx = 0;
break;
case 100:
bgep->param_adv_autoneg = 1;
bgep->param_adv_1000fdx = 0;
bgep->param_adv_1000hdx = 0;
bgep->param_adv_100fdx = 1;
bgep->param_adv_100hdx = 1;
bgep->param_adv_10fdx = 0;
bgep->param_adv_10hdx = 0;
break;
case 10:
bgep->param_adv_autoneg = 1;
bgep->param_adv_1000fdx = 0;
bgep->param_adv_1000hdx = 0;
bgep->param_adv_100fdx = 0;
bgep->param_adv_100hdx = 0;
bgep->param_adv_10fdx = 1;
bgep->param_adv_10hdx = 1;
break;
default:
break;
}
}
/*
* Also check the "speed" and "full-duplex" properties. Setting
* these properties will override all other settings and *disable*
* autonegotiation, so both should be specified if either one is.
* Otherwise, the unspecified parameter will be set to a default
* value (1000Mb/s, full-duplex).
*/
if (BGE_PROP_EXISTS(dip, speed_propname) ||
BGE_PROP_EXISTS(dip, duplex_propname)) {
bgep->param_adv_autoneg = 0;
bgep->param_adv_1000fdx = 1;
bgep->param_adv_1000hdx = 1;
bgep->param_adv_100fdx = 1;
bgep->param_adv_100hdx = 1;
bgep->param_adv_10fdx = 1;
bgep->param_adv_10hdx = 1;
speed = BGE_PROP_GET_INT(dip, speed_propname);
duplex = BGE_PROP_GET_INT(dip, duplex_propname);
bge_log(bgep, "%s property is %d",
speed_propname, speed);
bge_log(bgep, "%s property is %d",
duplex_propname, duplex);
switch (speed) {
case 1000:
default:
bgep->param_adv_100fdx = 0;
bgep->param_adv_100hdx = 0;
bgep->param_adv_10fdx = 0;
bgep->param_adv_10hdx = 0;
break;
case 100:
bgep->param_adv_1000fdx = 0;
bgep->param_adv_1000hdx = 0;
bgep->param_adv_10fdx = 0;
bgep->param_adv_10hdx = 0;
break;
case 10:
bgep->param_adv_1000fdx = 0;
bgep->param_adv_1000hdx = 0;
bgep->param_adv_100fdx = 0;
bgep->param_adv_100hdx = 0;
break;
}
switch (duplex) {
default:
case 1:
bgep->param_adv_1000hdx = 0;
bgep->param_adv_100hdx = 0;
bgep->param_adv_10hdx = 0;
break;
case 0:
bgep->param_adv_1000fdx = 0;
bgep->param_adv_100fdx = 0;
bgep->param_adv_10fdx = 0;
break;
}
}
BGE_DEBUG(("bge_nd_init: autoneg %d"
"pause %d asym_pause %d "
"1000fdx %d 1000hdx %d "
"100fdx %d 100hdx %d "
"10fdx %d 10hdx %d ",
bgep->param_adv_autoneg,
bgep->param_adv_pause, bgep->param_adv_asym_pause,
bgep->param_adv_1000fdx, bgep->param_adv_1000hdx,
bgep->param_adv_100fdx, bgep->param_adv_100hdx,
bgep->param_adv_10fdx, bgep->param_adv_10hdx));
return (0);
}
enum ioc_reply
bge_nd_ioctl(bge_t *bgep, queue_t *wq, mblk_t *mp, struct iocblk *iocp)
{
nd_param_t *ndp;
boolean_t ok;
int info;
int cmd;
BGE_TRACE(("bge_nd_ioctl($%p, $%p, $%p, $%p)",
(void *)bgep, (void *)wq, (void *)mp, (void *)iocp));
ASSERT(mutex_owned(bgep->genlock));
cmd = iocp->ioc_cmd;
switch (cmd) {
default:
/* NOTREACHED */
bge_error(bgep, "bge_nd_ioctl: invalid cmd 0x%x", cmd);
return (IOC_INVAL);
case ND_GET:
/*
* If nd_getset() returns B_FALSE, the command was
* not valid (e.g. unknown name), so we just tell the
* top-level ioctl code to send a NAK (with code EINVAL).
*
* Otherwise, nd_getset() will have built the reply to
* be sent (but not actually sent it), so we tell the
* caller to send the prepared reply.
*/
ok = nd_getset(wq, bgep->nd_data_p, mp);
BGE_DEBUG(("bge_nd_ioctl: get %s", ok ? "OK" : "FAIL"));
return (ok ? IOC_REPLY : IOC_INVAL);
case ND_SET:
/*
* All adv_* parameters are locked (read-only) while
* the device is in any sort of loopback mode ...
*/
if (bgep->param_loop_mode != BGE_LOOP_NONE) {
iocp->ioc_error = EBUSY;
return (IOC_INVAL);
}
/*
* Before calling nd_getset(), we save the <info> field
* of the 'autonegotiation' parameter so that we can tell
* whether it was assigned (even if its value doesn't
* actually change).
*/
ndp = &bgep->nd_params[PARAM_ADV_AUTONEG_CAP];
info = ndp->ndp_info;
ok = nd_getset(wq, bgep->nd_data_p, mp);
/*
* If nd_getset() returns B_FALSE, the command was
* not valid (e.g. unknown name), so we just tell
* the top-level ioctl code to send a NAK (with code
* EINVAL by default).
*
* Otherwise, nd_getset() will have built the reply to
* be sent - but that doesn't imply success! In some
* cases, the reply it's built will have a non-zero
* error code in it (e.g. EPERM if not superuser).
* So, we also drop out in that case ...
*/
BGE_DEBUG(("bge_nd_ioctl: set %s err %d autoneg %d info %d/%d",
ok ? "OK" : "FAIL", iocp->ioc_error,
ndp->ndp_val, info, ndp->ndp_info));
if (!ok)
return (IOC_INVAL);
if (iocp->ioc_error)
return (IOC_REPLY);
/*
* OK, a successful 'set'. Prepare the messages explaining
* the link down/up cycle that will probably follow, then
* return IOC_RESTART_REPLY, telling the top-level ioctl
* code to update the PHY and restart the chip before
* sending our prepared reply
*/
if (ndp->ndp_val) {
bgep->link_down_msg = " (autonegotiation enabled)";
bgep->link_up_msg = " (autonegotiated)";
} else {
bgep->link_down_msg = " (autonegotiation disabled)";
bgep->link_up_msg = " (forced)";
}
if (ndp->ndp_info == info)
bgep->link_down_msg = " (advertised capabilities "
"changed)";
return (IOC_RESTART_REPLY);
}
}
/* Free the Named Dispatch Table by calling nd_free */
void
bge_nd_cleanup(bge_t *bgep)
{
BGE_TRACE(("bge_nd_cleanup($%p)", (void *)bgep));
nd_free(&bgep->nd_data_p);
}