nge_ndd.c revision 02d51d0d625c185ad277d9ad1ddf34b06f78b9b4
/*
* 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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "nge.h"
#undef NGE_DBG
#define NGE_DBG NGE_DBG_NDD
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 nge_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, 0, "=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, 0, "=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, -1, 1, -1, "-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" },
/* TX Bcopy threshold */
{ PARAM_TXBCOPY_THRESHOLD, 0, NGE_MAX_SDU, NGE_TX_COPY_SIZE,
"+tx_bcopy_threshold" },
/* RX Bcopy threshold */
{ PARAM_RXBCOPY_THRESHOLD, 0, NGE_MAX_SDU, NGE_RX_COPY_SIZE,
"+rx_bcopy_threshold" },
/* Max packet received per interrupt */
{ PARAM_RECV_MAX_PACKET, 0, NGE_RECV_SLOTS_DESC_1024, 128,
"+recv_max_packet" },
/* Quiet time switch from polling interrupt to per packet interrupt */
{ PARAM_POLL_QUIET_TIME, 0, 10000, NGE_POLL_QUIET_TIME,
"+poll_quiet_time" },
/* Busy time switch from per packet interrupt to polling interrupt */
{ PARAM_POLL_BUSY_TIME, 0, 10000, NGE_POLL_BUSY_TIME,
"+poll_busy_time" },
/* Packets received to trigger the poll_quiet_time counter */
{ PARAM_RX_INTR_HWATER, 0, PARAM_RECV_MAX_PACKET, 1,
"+rx_intr_hwater" },
/* Packets received to trigger the poll_busy_time counter */
{ PARAM_RX_INTR_LWATER, 0, PARAM_RECV_MAX_PACKET, 8,
"+rx_intr_lwater" },
/* Per N tx packets to do tx recycle in poll mode */
{ PARAM_TX_N_INTR, 1, 10000, NGE_TX_N_INTR,
"+tx_n_intr" },
/* Terminator */
{ PARAM_COUNT, 0, 0, 0, NULL }
};
/* ============== NDD Support Functions =============== */
/*
* Extracts the value from the nge parameter array and prints
* the parameter value. cp points to the required parameter.
*/
static int
nge_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 NGE 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
nge_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
nge_param_register(nge_t *ngep)
{
const nd_param_t *tmplp;
dev_info_t *dip;
nd_param_t *ndp;
caddr_t *nddpp;
pfi_t setfn;
char *nm;
int pval;
dip = ngep->devinfo;
nddpp = &ngep->nd_data_p;
ASSERT(*nddpp == NULL);
NGE_TRACE(("nge_param_register($%p)", (void *)ngep));
for (tmplp = nd_template; tmplp->ndp_name != NULL; ++tmplp) {
/*
* Copy the template from nd_template[] into the
* proper slot in the per-instance parameters,
* then register the parameter with nd_load()
*/
ndp = &ngep->nd_params[tmplp->ndp_info];
*ndp = *tmplp;
nm = &ndp->ndp_name[0];
setfn = nge_param_set;
switch (*nm) {
default:
case '!':
continue;
case '+':
case '?':
break;
case '=':
case '-':
setfn = NULL;
break;
}
if (!nd_load(nddpp, ++nm, nge_param_get, setfn, (caddr_t)ndp))
goto nd_fail;
/*
* If the parameter is writable, and there's a property
* with the same name, and its value is in range, we use
* it to initialise the parameter. If it exists but is
* out of range, it's ignored.
*/
if (setfn && NGE_PROP_EXISTS(dip, nm)) {
pval = NGE_PROP_GET_INT(dip, nm);
if (pval >= ndp->ndp_min && pval <= ndp->ndp_max)
ndp->ndp_val = pval;
}
}
return (DDI_SUCCESS);
nd_fail:
nd_free(nddpp);
return (DDI_FAILURE);
}
int
nge_nd_init(nge_t *ngep)
{
int duplex;
int speed;
dev_info_t *dip;
NGE_TRACE(("nge_nd_init($%p)", (void *)ngep));
/*
* Register all the per-instance properties, initialising
* them from the table above or from driver properties set
* in the .conf file
*/
if (nge_param_register(ngep) != 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 = ngep->devinfo;
if (NGE_PROP_EXISTS(dip, transfer_speed_propname)) {
speed = NGE_PROP_GET_INT(dip, transfer_speed_propname);
nge_log(ngep, "%s property is %d",
transfer_speed_propname, speed);
switch (speed) {
case 1000:
ngep->param_adv_autoneg = 1;
ngep->param_adv_1000fdx = 1;
ngep->param_adv_1000hdx = 0;
ngep->param_adv_100fdx = 0;
ngep->param_adv_100hdx = 0;
ngep->param_adv_10fdx = 0;
ngep->param_adv_10hdx = 0;
break;
case 100:
ngep->param_adv_autoneg = 1;
ngep->param_adv_1000fdx = 0;
ngep->param_adv_1000hdx = 0;
ngep->param_adv_100fdx = 1;
ngep->param_adv_100hdx = 1;
ngep->param_adv_10fdx = 0;
ngep->param_adv_10hdx = 0;
break;
case 10:
ngep->param_adv_autoneg = 1;
ngep->param_adv_1000fdx = 0;
ngep->param_adv_1000hdx = 0;
ngep->param_adv_100fdx = 0;
ngep->param_adv_100hdx = 0;
ngep->param_adv_10fdx = 1;
ngep->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 (NGE_PROP_EXISTS(dip, speed_propname) ||
NGE_PROP_EXISTS(dip, duplex_propname)) {
ngep->param_adv_autoneg = 0;
ngep->param_adv_1000fdx = 1;
ngep->param_adv_1000hdx = 0;
ngep->param_adv_100fdx = 1;
ngep->param_adv_100hdx = 1;
ngep->param_adv_10fdx = 1;
ngep->param_adv_10hdx = 1;
speed = NGE_PROP_GET_INT(dip, speed_propname);
duplex = NGE_PROP_GET_INT(dip, duplex_propname);
nge_log(ngep, "%s property is %d",
speed_propname, speed);
nge_log(ngep, "%s property is %d",
duplex_propname, duplex);
switch (speed) {
case 1000:
default:
ngep->param_adv_100fdx = 0;
ngep->param_adv_100hdx = 0;
ngep->param_adv_10fdx = 0;
ngep->param_adv_10hdx = 0;
break;
case 100:
ngep->param_adv_1000fdx = 0;
ngep->param_adv_1000hdx = 0;
ngep->param_adv_10fdx = 0;
ngep->param_adv_10hdx = 0;
break;
case 10:
ngep->param_adv_1000fdx = 0;
ngep->param_adv_1000hdx = 0;
ngep->param_adv_100fdx = 0;
ngep->param_adv_100hdx = 0;
break;
}
switch (duplex) {
default:
case 1:
ngep->param_adv_1000hdx = 0;
ngep->param_adv_100hdx = 0;
ngep->param_adv_10hdx = 0;
break;
case 0:
ngep->param_adv_1000fdx = 0;
ngep->param_adv_100fdx = 0;
ngep->param_adv_10fdx = 0;
break;
}
}
return (0);
}
enum ioc_reply
nge_nd_ioctl(nge_t *ngep, queue_t *wq, mblk_t *mp, struct iocblk *iocp)
{
boolean_t ok;
int cmd;
NGE_TRACE(("nge_nd_ioctl($%p, $%p, $%p, $%p)",
(void *)ngep, (void *)wq, (void *)mp, (void *)iocp));
ASSERT(mutex_owned(ngep->genlock));
cmd = iocp->ioc_cmd;
switch (cmd) {
default:
nge_error(ngep, "nge_nd_ioctl: invalid cmd 0x%x", cmd);
return (IOC_INVAL);
case ND_GET:
/*
* If nd_getset() returns B_FALSE, the command was
* not valid (e.g. unknown name), so we just tell the
* top-level ioctl code to send a NAK (with code EINVAL).
*
* Otherwise, nd_getset() will have built the reply to
* be sent (but not actually sent it), so we tell the
* caller to send the prepared reply.
*/
ok = nd_getset(wq, ngep->nd_data_p, mp);
return (ok ? IOC_REPLY : IOC_INVAL);
case ND_SET:
/*
* All adv_* parameters are locked (read-only) while
* the device is in any sort of loopback mode ...
*/
if (ngep->param_loop_mode != NGE_LOOP_NONE) {
iocp->ioc_error = EBUSY;
return (IOC_INVAL);
}
ok = nd_getset(wq, ngep->nd_data_p, mp);
/*
* If nd_getset() returns B_FALSE, the command was
* not valid (e.g. unknown name), so we just tell
* the top-level ioctl code to send a NAK (with code
* EINVAL by default).
*
* Otherwise, nd_getset() will have built the reply to
* be sent - but that doesn't imply success! In some
* cases, the reply it's built will have a non-zero
* error code in it (e.g. EPERM if not superuser).
* So, we also drop out in that case ...
*/
if (!ok)
return (IOC_INVAL);
if (iocp->ioc_error)
return (IOC_REPLY);
/*
* OK, a successful 'set'. Return IOC_RESTART_REPLY,
* telling the top-level ioctl code to update the PHY
* and restart the chip before sending our prepared reply
*/
return (IOC_RESTART_REPLY);
}
}
/* Free the Named Dispatch Table by calling nd_free */
void
nge_nd_cleanup(nge_t *ngep)
{
NGE_TRACE(("nge_nd_cleanup($%p)", (void *)ngep));
nd_free(&ngep->nd_data_p);
}