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code.illumos.org / illumos-gate / bbb9d5d65bf8372aae4b8821c80e218b8b832846 / . / usr / src / uts / common / io / elxl / elxl.c
blob: 2ffe96aff35b26f773812b83918227e91de5a9c2 [file] [log] [blame]
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Frank van der Linden.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/varargs.h>
#include <sys/types.h>
#include <sys/modctl.h>
#include <sys/conf.h>
#include <sys/devops.h>
#include <sys/stream.h>
#include <sys/strsun.h>
#include <sys/cmn_err.h>
#include <sys/ethernet.h>
#include <sys/pci.h>
#include <sys/kmem.h>
#include <sys/time.h>
#include <sys/mii.h>
#include <sys/miiregs.h>
#include <sys/mac_ether.h>
#include <sys/mac_provider.h>
#include <sys/strsubr.h>
#include <sys/pattr.h>
#include <sys/dlpi.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
#include <sys/vlan.h>
#include "elxl.h"
static boolean_t elxl_add_intr(elxl_t *);
static void elxl_probe_media(elxl_t *);
static void elxl_set_rxfilter(elxl_t *);
static void elxl_set_media(elxl_t *);
static uint16_t elxl_read_eeprom(elxl_t *, int);
static void elxl_init(elxl_t *);
static void elxl_stop(elxl_t *);
static void elxl_reset(elxl_t *);
static void elxl_getstats(elxl_t *);
static int elxl_eeprom_busy(elxl_t *);
static void elxl_setup_tx(elxl_t *);
static uint16_t elxl_mii_read(void *, uint8_t, uint8_t);
static void elxl_mii_write(void *, uint8_t, uint8_t, uint16_t);
static void elxl_mii_notify(void *, link_state_t);
static int elxl_m_stat(void *, uint_t, uint64_t *);
static int elxl_m_start(void *);
static void elxl_m_stop(void *);
static mblk_t *elxl_m_tx(void *, mblk_t *);
static int elxl_m_promisc(void *, boolean_t);
static int elxl_m_multicst(void *, boolean_t, const uint8_t *);
static int elxl_m_unicst(void *, const uint8_t *);
static int elxl_m_getprop(void *, const char *, mac_prop_id_t, uint_t,
void *);
static int elxl_m_setprop(void *, const char *, mac_prop_id_t, uint_t,
const void *);
static void elxl_m_propinfo(void *, const char *, mac_prop_id_t,
mac_prop_info_handle_t);
static boolean_t elxl_m_getcapab(void *, mac_capab_t cap, void *);
static uint_t elxl_intr(caddr_t, caddr_t);
static void elxl_error(elxl_t *, char *, ...);
static void elxl_linkcheck(void *);
static int elxl_attach(dev_info_t *);
static void elxl_detach(elxl_t *);
static void elxl_suspend(elxl_t *);
static void elxl_resume(dev_info_t *);
static int elxl_ddi_attach(dev_info_t *, ddi_attach_cmd_t);
static int elxl_ddi_detach(dev_info_t *, ddi_detach_cmd_t);
static int elxl_ddi_quiesce(dev_info_t *);
static ddi_device_acc_attr_t ex_dev_acc_attr = {
DDI_DEVICE_ATTR_V0,
DDI_STRUCTURE_LE_ACC,
DDI_STRICTORDER_ACC
};
static ddi_device_acc_attr_t ex_buf_acc_attr = {
DDI_DEVICE_ATTR_V0,
DDI_NEVERSWAP_ACC,
DDI_STORECACHING_OK_ACC
};
/*
* In theory buffers can have more flexible DMA attributes, but since
* we're just using a preallocated region with bcopy, there is little
* reason to allow for rougher alignment. (Further, the 8-byte
* alignment can allow for more efficient bcopy and similar operations
* from the buffer.)
*/
static ddi_dma_attr_t ex_dma_attr = {
DMA_ATTR_V0, /* dma_attr_version */
0, /* dma_attr_addr_lo */
0xFFFFFFFFU, /* dma_attr_addr_hi */
0x00FFFFFFU, /* dma_attr_count_max */
8, /* dma_attr_align */
0x7F, /* dma_attr_burstsizes */
1, /* dma_attr_minxfer */
0xFFFFFFFFU, /* dma_attr_maxxfer */
0xFFFFFFFFU, /* dma_attr_seg */
1, /* dma_attr_sgllen */
1, /* dma_attr_granular */
0 /* dma_attr_flags */
};
static uint8_t ex_broadcast[6] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
/*
* Structure to map media-present bits in boards to ifmedia codes and
* printable media names. Used for table-driven ifmedia initialization.
*/
typedef struct ex_media {
int exm_mpbit; /* media present bit */
int exm_xcvr; /* XCVR_SEL_* constant */
} ex_media_t;
/*
* Media table for 3c90x chips. Note that chips with MII have no
* `native' media. This is sorted in "reverse preference".
*/
static ex_media_t ex_native_media[] = {
{ MEDIAOPT_AUI, XCVR_SEL_AUI },
{ MEDIAOPT_BNC, XCVR_SEL_BNC },
{ MEDIAOPT_10T, XCVR_SEL_10T },
{ MEDIAOPT_100TX, XCVR_SEL_AUTO }, /* only 90XB */
{ MEDIAOPT_100FX, XCVR_SEL_100FX },
{ MEDIAOPT_MII, XCVR_SEL_MII },
{ MEDIAOPT_100T4, XCVR_SEL_MII },
{ 0, 0 },
};
/*
* NB: There are lots of other models that *could* be supported.
* Specifically there are cardbus and miniPCI variants that could be
* easily added here, but they require special hacks and I have no
* access to the hardware required to verify them. Especially they
* seem to require some extra work in another register window, and I
* have no supporting documentation.
*/
static const struct ex_product {
uint16_t epp_prodid; /* PCI product ID */
const char *epp_name; /* device name */
unsigned epp_flags; /* initial softc flags */
} ex_products[] = {
{ 0x4500, "3c450-TX", 0 },
{ 0x7646, "3cSOHO100-TX", 0 },
{ 0x9000, "3c900-TPO", 0 },
{ 0x9001, "3c900-COMBO", 0 },
{ 0x9004, "3c900B-TPO", 0 },
{ 0x9005, "3c900B-COMBO", 0 },
{ 0x9006, "3c900B-TPC", 0 },
{ 0x900a, "3c900B-FL", 0 },
{ 0x9050, "3c905-TX", 0 },
{ 0x9051, "3c905-T4", 0 },
{ 0x9055, "3c905B-TX", 0 },
{ 0x9056, "3c905B-T4", 0 },
{ 0x9058, "3c905B-COMBO", 0 },
{ 0x905a, "3c905B-FX", 0 },
{ 0x9200, "3c905C-TX", 0 },
{ 0x9201, "3c920B-EMB", 0 },
{ 0x9202, "3c920B-EMB-WNM", 0 },
{ 0x9800, "3c980", 0 },
{ 0x9805, "3c980C-TXM", 0 },
{ 0, NULL, 0 },
};
static char *ex_priv_prop[] = {
"_media",
"_available_media",
NULL
};
static mii_ops_t ex_mii_ops = {
MII_OPS_VERSION,
elxl_mii_read,
elxl_mii_write,
elxl_mii_notify,
};
static mac_callbacks_t elxl_m_callbacks = {
MC_GETCAPAB | MC_PROPERTIES,
elxl_m_stat,
elxl_m_start,
elxl_m_stop,
elxl_m_promisc,
elxl_m_multicst,
elxl_m_unicst,
elxl_m_tx,
NULL,
NULL,
elxl_m_getcapab,
NULL,
NULL,
elxl_m_setprop,
elxl_m_getprop,
elxl_m_propinfo
};
/*
* Stream information
*/
DDI_DEFINE_STREAM_OPS(ex_devops, nulldev, nulldev,
elxl_ddi_attach, elxl_ddi_detach,
nodev, NULL, D_MP, NULL, elxl_ddi_quiesce);
/*
* Module linkage information.
*/
static struct modldrv ex_modldrv = {
&mod_driverops, /* drv_modops */
"3Com EtherLink XL", /* drv_linkinfo */
&ex_devops /* drv_dev_ops */
};
static struct modlinkage ex_modlinkage = {
MODREV_1, /* ml_rev */
{ &ex_modldrv, NULL } /* ml_linkage */
};
int
_init(void)
{
int rv;
mac_init_ops(&ex_devops, "elxl");
if ((rv = mod_install(&ex_modlinkage)) != DDI_SUCCESS) {
mac_fini_ops(&ex_devops);
}
return (rv);
}
int
_fini(void)
{
int rv;
if ((rv = mod_remove(&ex_modlinkage)) == DDI_SUCCESS) {
mac_fini_ops(&ex_devops);
}
return (rv);
}
int
_info(struct modinfo *modinfop)
{
return (mod_info(&ex_modlinkage, modinfop));
}
static void
ex_free_ring(ex_ring_t *r)
{
for (int i = 0; i < r->r_count; i++) {
ex_desc_t *ed = &r->r_desc[i];
if (ed->ed_bufaddr)
(void) ddi_dma_unbind_handle(ed->ed_dmah);
if (ed->ed_acch)
ddi_dma_mem_free(&ed->ed_acch);
if (ed->ed_dmah)
ddi_dma_free_handle(&ed->ed_dmah);
}
if (r->r_paddr)
(void) ddi_dma_unbind_handle(r->r_dmah);
if (r->r_acch)
ddi_dma_mem_free(&r->r_acch);
if (r->r_dmah)
ddi_dma_free_handle(&r->r_dmah);
kmem_free(r->r_desc, sizeof (ex_desc_t) * r->r_count);
r->r_desc = NULL;
}
static void
elxl_reset_ring(ex_ring_t *r, uint_t dir)
{
ex_desc_t *ed;
ex_pd_t *pd;
if (dir == DDI_DMA_WRITE) {
/* transmit ring, not linked yet */
for (int i = 0; i < r->r_count; i++) {
ed = &r->r_desc[i];
pd = ed->ed_pd;
PUT_PD(r, pd->pd_link, 0);
PUT_PD(r, pd->pd_fsh, 0);
PUT_PD(r, pd->pd_len, EX_FR_LAST);
PUT_PD(r, pd->pd_addr, ed->ed_bufaddr);
}
r->r_head = NULL;
r->r_tail = NULL;
r->r_avail = r->r_count;
} else {
/* receive is linked into a list */
for (int i = 0; i < r->r_count; i++) {
ed = &r->r_desc[i];
pd = ed->ed_pd;
PUT_PD(r, pd->pd_link, ed->ed_next->ed_descaddr);
PUT_PD(r, pd->pd_status, 0);
PUT_PD(r, pd->pd_len, EX_BUFSZ | EX_FR_LAST);
PUT_PD(r, pd->pd_addr, ed->ed_bufaddr);
}
r->r_head = &r->r_desc[0];
r->r_tail = NULL;
r->r_avail = 0;
}
(void) ddi_dma_sync(r->r_dmah, 0, 0, DDI_DMA_SYNC_FORDEV);
}
static boolean_t
ex_alloc_ring(elxl_t *sc, int count, ex_ring_t *r, uint_t dir)
{
dev_info_t *dip = sc->ex_dip;
int i;
int rv;
size_t len;
ddi_dma_cookie_t dmac;
unsigned ndmac;
r->r_count = count;
r->r_desc = kmem_zalloc(sizeof (ex_desc_t) * count, KM_SLEEP);
rv = ddi_dma_alloc_handle(dip, &ex_dma_attr, DDI_DMA_DONTWAIT,
NULL, &r->r_dmah);
if (rv != DDI_SUCCESS) {
elxl_error(sc, "unable to allocate descriptor dma handle");
return (B_FALSE);
}
rv = ddi_dma_mem_alloc(r->r_dmah, count * sizeof (struct ex_pd),
&ex_dev_acc_attr, DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL,
(caddr_t *)&r->r_pd, &len, &r->r_acch);
if (rv != DDI_SUCCESS) {
elxl_error(sc, "unable to allocate descriptor memory");
return (B_FALSE);
}
bzero(r->r_pd, len);
rv = ddi_dma_addr_bind_handle(r->r_dmah, NULL,
(caddr_t)r->r_pd, len, DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
DDI_DMA_DONTWAIT, NULL, &dmac, &ndmac);
if (rv != DDI_DMA_MAPPED) {
elxl_error(sc, "unable to map descriptor memory");
return (B_FALSE);
}
r->r_paddr = dmac.dmac_address;
for (i = 0; i < count; i++) {
ex_desc_t *ed = &r->r_desc[i];
ex_pd_t *pd = &r->r_pd[i];
ed->ed_pd = pd;
ed->ed_off = (i * sizeof (ex_pd_t));
ed->ed_descaddr = r->r_paddr + (i * sizeof (ex_pd_t));
/* Link the high level descriptors into a ring. */
ed->ed_next = &r->r_desc[(i + 1) % count];
ed->ed_next->ed_prev = ed;
rv = ddi_dma_alloc_handle(dip, &ex_dma_attr,
DDI_DMA_DONTWAIT, NULL, &ed->ed_dmah);
if (rv != 0) {
elxl_error(sc, "can't allocate buf dma handle");
return (B_FALSE);
}
rv = ddi_dma_mem_alloc(ed->ed_dmah, EX_BUFSZ, &ex_buf_acc_attr,
DDI_DMA_STREAMING, DDI_DMA_DONTWAIT, NULL, &ed->ed_buf,
&len, &ed->ed_acch);
if (rv != DDI_SUCCESS) {
elxl_error(sc, "unable to allocate buf memory");
return (B_FALSE);
}
bzero(ed->ed_buf, len);
rv = ddi_dma_addr_bind_handle(ed->ed_dmah, NULL,
ed->ed_buf, len, dir | DDI_DMA_STREAMING,
DDI_DMA_DONTWAIT, NULL, &dmac, &ndmac);
if (rv != DDI_DMA_MAPPED) {
elxl_error(sc, "unable to map buf memory");
return (B_FALSE);
}
ed->ed_bufaddr = dmac.dmac_address;
}
elxl_reset_ring(r, dir);
return (B_TRUE);
}
static boolean_t
elxl_add_intr(elxl_t *sc)
{
dev_info_t *dip;
int actual;
uint_t ipri;
int rv;
dip = sc->ex_dip;
rv = ddi_intr_alloc(dip, &sc->ex_intrh, DDI_INTR_TYPE_FIXED,
0, 1, &actual, DDI_INTR_ALLOC_STRICT);
if ((rv != DDI_SUCCESS) || (actual != 1)) {
elxl_error(sc, "Unable to allocate interrupt, %d, count %d",
rv, actual);
return (B_FALSE);
}
if (ddi_intr_get_pri(sc->ex_intrh, &ipri) != DDI_SUCCESS) {
elxl_error(sc, "Unable to get interrupt priority");
return (B_FALSE);
}
if (ddi_intr_add_handler(sc->ex_intrh, elxl_intr, sc, NULL) !=
DDI_SUCCESS) {
elxl_error(sc, "Can't add interrupt handler");
(void) ddi_intr_free(sc->ex_intrh);
sc->ex_intrh = NULL;
return (B_FALSE);
}
mutex_init(&sc->ex_intrlock, NULL, MUTEX_DRIVER, DDI_INTR_PRI(ipri));
mutex_init(&sc->ex_txlock, NULL, MUTEX_DRIVER, DDI_INTR_PRI(ipri));
return (B_TRUE);
}
static int
elxl_attach(dev_info_t *dip)
{
elxl_t *sc;
mac_register_t *macp;
uint16_t val;
uint16_t venid;
uint16_t devid;
int i;
sc = kmem_zalloc(sizeof (*sc), KM_SLEEP);
ddi_set_driver_private(dip, sc);
sc->ex_dip = dip;
if (pci_config_setup(dip, &sc->ex_pcih) != DDI_SUCCESS) {
elxl_error(sc, "unable to setup PCI config handle");
goto fail;
}
venid = pci_config_get16(sc->ex_pcih, PCI_CONF_VENID);
devid = pci_config_get16(sc->ex_pcih, PCI_CONF_DEVID);
if (venid != 0x10b7) {
/* Not a 3Com part! */
elxl_error(sc, "Unsupported vendor id (0x%x)", venid);
goto fail;
}
for (i = 0; ex_products[i].epp_name; i++) {
if (devid == ex_products[i].epp_prodid) {
cmn_err(CE_CONT, "?%s%d: 3Com %s",
ddi_driver_name(dip),
ddi_get_instance(dip),
ex_products[i].epp_name);
sc->ex_conf = ex_products[i].epp_flags;
break;
}
}
if (ex_products[i].epp_name == NULL) {
/* Not a produce we know how to support */
elxl_error(sc, "Unsupported device id (0x%x)", devid);
elxl_error(sc, "Driver may or may not function.");
}
pci_config_put16(sc->ex_pcih, PCI_CONF_COMM,
pci_config_get16(sc->ex_pcih, PCI_CONF_COMM) |
PCI_COMM_IO | PCI_COMM_MAE | PCI_COMM_ME);
if (ddi_regs_map_setup(dip, 1, &sc->ex_regsva, 0, 0, &ex_dev_acc_attr,
&sc->ex_regsh) != DDI_SUCCESS) {
elxl_error(sc, "Unable to map device registers");
goto fail;
}
if (!elxl_add_intr(sc)) {
goto fail;
}
elxl_reset(sc);
val = elxl_read_eeprom(sc, EE_OEM_ADDR_0);
sc->ex_factaddr[0] = val >> 8;
sc->ex_factaddr[1] = val & 0xff;
val = elxl_read_eeprom(sc, EE_OEM_ADDR_1);
sc->ex_factaddr[2] = val >> 8;
sc->ex_factaddr[3] = val & 0xff;
val = elxl_read_eeprom(sc, EE_OEM_ADDR_2);
sc->ex_factaddr[4] = val >> 8;
sc->ex_factaddr[5] = val & 0xff;
bcopy(sc->ex_factaddr, sc->ex_curraddr, 6);
sc->ex_capab = elxl_read_eeprom(sc, EE_CAPABILITIES);
/*
* Is this a 90XB? If bit 2 (supportsLargePackets) is set, or
* bit (supportsNoTxLength) is clear, then its a 90X.
* Otherwise its a 90XB.
*/
if ((sc->ex_capab & (1 << 2)) || !(sc->ex_capab & (1 << 9))) {
sc->ex_conf &= ~CONF_90XB;
} else {
sc->ex_conf |= CONF_90XB;
}
if (!ex_alloc_ring(sc, EX_NRX, &sc->ex_rxring, DDI_DMA_READ)) {
goto fail;
}
if (!ex_alloc_ring(sc, EX_NTX, &sc->ex_txring, DDI_DMA_WRITE)) {
goto fail;
}
elxl_probe_media(sc);
/*
* The probe may have indicated MII!
*/
if (sc->ex_mediaopt & (MEDIAOPT_MII | MEDIAOPT_100TX)) {
sc->ex_miih = mii_alloc(sc, sc->ex_dip, &ex_mii_ops);
if (sc->ex_miih == NULL) {
goto fail;
}
/*
* Note: The 90XB models can in theory support pause,
* but we're not enabling now due to lack of units for
* testing with. If this is changed, make sure to
* update the code in elxl_mii_notify to set the flow
* control field in the W3_MAC_CONTROL register.
*/
mii_set_pauseable(sc->ex_miih, B_FALSE, B_FALSE);
}
if ((macp = mac_alloc(MAC_VERSION)) == NULL) {
elxl_error(sc, "MAC register allocation failed");
goto fail;
}
macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
macp->m_driver = sc;
macp->m_dip = dip;
macp->m_src_addr = sc->ex_curraddr;
macp->m_callbacks = &elxl_m_callbacks;
macp->m_min_sdu = 0;
macp->m_max_sdu = ETHERMTU;
macp->m_margin = VLAN_TAGSZ;
macp->m_priv_props = ex_priv_prop;
(void) ddi_intr_enable(sc->ex_intrh);
if (mac_register(macp, &sc->ex_mach) == DDI_SUCCESS) {
/*
* Note: we don't want to start link checking
* until *after* we have added the MAC handle.
*/
if (sc->ex_mediaopt &
(MEDIAOPT_MASK & ~(MEDIAOPT_MII | MEDIAOPT_100TX))) {
/* Check non-MII link state once per second. */
sc->ex_linkcheck =
ddi_periodic_add(elxl_linkcheck, sc, 10000000, 0);
}
mac_free(macp);
return (DDI_SUCCESS);
}
mac_free(macp);
fail:
elxl_detach(sc);
return (DDI_FAILURE);
}
/*
* Find the media present on non-MII chips, and select the one to use.
*/
static void
elxl_probe_media(elxl_t *sc)
{
ex_media_t *exm;
uint32_t config;
uint32_t default_media;
uint16_t media_options;
SET_WIN(3);
config = GET32(W3_INTERNAL_CONFIG);
media_options = GET16(W3_MEDIAOPT);
/*
* We modify the media_options field so that we have a
* consistent view of the media available, without worrying
* about the version of ASIC, etc.
*/
/*
* 100BASE-TX is handled differently on 90XB from 90X. Older
* parts use the external MII to provide this support.
*/
if (sc->ex_conf & CONF_90XB) {
if (media_options & MEDIAOPT_100TX) {
/*
* 3Com advises that we should only ever use the
* auto mode. Notably, it seems that there should
* never be a 90XB board with the MEDIAOPT_10T bit set
* without this bit. If it happens, the driver will
* run in compatible 10BASE-T only mode.
*/
media_options &= ~MEDIAOPT_10T;
}
} else {
if (media_options & MEDIAOPT_100TX) {
/*
* If this occurs, we really want to use it like
* an MII device. Generally in this situation we
* want to use the MII exclusively, and there ought
* not be a 10bT transceiver.
*/
media_options |= MEDIAOPT_MII;
media_options &= ~MEDIAOPT_100TX;
media_options &= ~MEDIAOPT_10T;
/*
* Additionally, some of these devices map all
* internal PHY register at *every* address, not
* just the "allowed" address 24.
*/
sc->ex_conf |= CONF_INTPHY;
}
/*
* Early versions didn't have 10FL models, and used this
* bit for something else (VCO).
*/
media_options &= ~MEDIAOPT_10FL;
}
if (media_options & MEDIAOPT_100T4) {
/* 100BASE-T4 units all use the MII bus. */
media_options |= MEDIAOPT_MII;
media_options &= ~MEDIAOPT_100T4;
}
/* Save our media options. */
sc->ex_mediaopt = media_options;
#define APPEND_MEDIA(str, bit, name) \
if (media_options & (bit)) { \
(void) strlcat(str, *str ? "," : "", sizeof (str)); \
(void) strlcat(str, name, sizeof (str)); \
}
APPEND_MEDIA(sc->ex_medias, (MEDIAOPT_MII|MEDIAOPT_100TX), "mii");
APPEND_MEDIA(sc->ex_medias, MEDIAOPT_10T, "tp-hdx,tp-fdx");
APPEND_MEDIA(sc->ex_medias, MEDIAOPT_100FX, "fx-hdx,fx-fdx");
APPEND_MEDIA(sc->ex_medias, MEDIAOPT_BNC, "bnc");
APPEND_MEDIA(sc->ex_medias, MEDIAOPT_AUI, "aui");
APPEND_MEDIA(sc->ex_medias, MEDIAOPT_10FL, "fl-hdx,fl-fdx");
if (config & XCVR_SEL_100TX) {
/* Only found on 90XB. Don't use this, use AUTO instead! */
config |= XCVR_SEL_AUTO;
config &= ~XCVR_SEL_100TX;
}
default_media = (config & XCVR_SEL_MASK);
/* Sanity check that there are any media! */
if ((media_options & MEDIAOPT_MASK) == 0) {
elxl_error(sc,
"No media present? Attempting to use default.");
/*
* This "default" may be non-sensical. At worst it should
* cause a busted link.
*/
sc->ex_xcvr = default_media;
}
for (exm = ex_native_media; exm->exm_mpbit != 0; exm++) {
if (media_options & exm->exm_mpbit) {
if (exm->exm_xcvr == default_media) {
/* preferred default is present, just use it */
sc->ex_xcvr = default_media;
return;
}
sc->ex_xcvr = exm->exm_xcvr;
/* but keep trying for other more preferred options */
}
}
}
/*
* Setup transmitter parameters.
*/
static void
elxl_setup_tx(elxl_t *sc)
{
/*
* Disable reclaim threshold for 90xB, set free threshold to
* 6 * 256 = 1536 for 90x.
*/
if (sc->ex_conf & CONF_90XB)
PUT_CMD(CMD_SET_TXRECLAIM | 255);
else
PUT8(REG_TXFREETHRESH, 6);
/*
* We've seen underflows at the root cause of NIC hangs on
* older cards. Use a store-and-forward model to prevent that.
*/
PUT_CMD(CMD_SET_TXSTART | EX_BUFSZ >> 2);
}
/*
* Bring device up.
*/
static void
elxl_init(elxl_t *sc)
{
if (sc->ex_suspended)
return;
WAIT_CMD(sc);
elxl_stop(sc);
PUT_CMD(CMD_RX_RESET);
WAIT_CMD(sc);
PUT_CMD(CMD_TX_RESET);
WAIT_CMD(sc);
/* Load Tx parameters. */
elxl_setup_tx(sc);
PUT32(REG_DMACTRL, GET32(REG_DMACTRL) | DMACTRL_UPRXEAREN);
PUT_CMD(CMD_IND_ENABLE | INT_WATCHED);
PUT_CMD(CMD_INT_ENABLE | INT_WATCHED);
PUT_CMD(CMD_INT_ACK | 0xff);
elxl_set_media(sc);
elxl_set_rxfilter(sc);
/* Configure for VLAN tag sizing. */
SET_WIN(3);
if (sc->ex_conf & CONF_90XB) {
PUT16(W3_MAX_PKT_SIZE, EX_BUFSZ);
} else {
PUT16(W3_MAC_CONTROL, GET16(W3_MAC_CONTROL) |
MAC_CONTROL_ALLOW_LARGE);
}
PUT_CMD(CMD_SET_RXEARLY | (EX_BUFSZ >> 2));
PUT_CMD(CMD_STATS_ENABLE);
PUT_CMD(CMD_TX_ENABLE);
PUT32(REG_UPLISTPTR, sc->ex_rxring.r_paddr);
PUT_CMD(CMD_RX_ENABLE);
PUT_CMD(CMD_UP_UNSTALL);
}
/*
* Set multicast receive filter. Also take care of promiscuous mode.
* Note that *some* of this hardware is fully capable of either a 256
* or 64 bit multicast hash. However, we can't determine what the
* size of the hash table is easily, and so we are expected to be able
* to resubmit the entire list of addresses each time. This puts an
* onerous burden on the driver to maintain its list of multicast
* addresses. Since multicast stuff is usually not that performance
* sensitive, and since we don't usually have much of it, we are just
* going to skip it. We allow the upper layers to filter it, as
* needed, by setting the all-multicast bit if the hardware can do it.
* This also reduces our test burden.
*/
static void
elxl_set_rxfilter(elxl_t *sc)
{
uint16_t mask = FILTER_UNICAST | FILTER_ALLBCAST;
if (sc->ex_suspended)
return;
/*
* Set the station address and clear the station mask. The latter
* is needed for 90x cards, 0 is the default for 90xB cards.
*/
SET_WIN(2);
for (int i = 0; i < ETHERADDRL; i++) {
PUT8(W2_STATION_ADDRESS + i, sc->ex_curraddr[i]);
PUT8(W2_STATION_MASK + i, 0);
}
if (sc->ex_mccount) {
mask |= FILTER_ALLMULTI;
}
if (sc->ex_promisc) {
mask |= FILTER_PROMISC;
}
PUT_CMD(CMD_SET_FILTER | mask);
}
static void
elxl_set_media(elxl_t *sc)
{
uint32_t configreg;
SET_WIN(4);
PUT16(W4_MEDIASTAT, 0);
PUT_CMD(CMD_BNC_DISABLE);
drv_usecwait(800);
/*
* Now turn on the selected media/transceiver.
*/
switch (sc->ex_xcvr) {
case XCVR_SEL_10T:
sc->ex_mii_active = B_FALSE;
PUT16(W4_MEDIASTAT,
MEDIASTAT_JABGUARD_EN | MEDIASTAT_LINKBEAT_EN);
drv_usecwait(800);
break;
case XCVR_SEL_BNC:
sc->ex_mii_active = B_FALSE;
PUT_CMD(CMD_BNC_ENABLE);
drv_usecwait(800);
break;
case XCVR_SEL_100FX:
sc->ex_mii_active = B_FALSE; /* Is this really true? */
PUT16(W4_MEDIASTAT, MEDIASTAT_LINKBEAT_EN);
drv_usecwait(800);
break;
case XCVR_SEL_AUI:
sc->ex_mii_active = B_FALSE;
PUT16(W4_MEDIASTAT, MEDIASTAT_SQE_EN);
drv_usecwait(800);
break;
case XCVR_SEL_AUTO:
case XCVR_SEL_MII:
/*
* This is due to paranoia. If a card claims
* to default to MII, but doesn't have it set in
* media options, then we don't want to leave
* the MII active or we'll have problems derferencing
* the "mii handle".
*/
if (sc->ex_miih) {
sc->ex_mii_active = B_TRUE;
} else {
sc->ex_mii_active = B_FALSE;
}
break;
default:
sc->ex_mii_active = B_FALSE;
elxl_error(sc, "Impossible media setting!");
break;
}
SET_WIN(3);
configreg = GET32(W3_INTERNAL_CONFIG);
configreg &= ~(XCVR_SEL_MASK);
configreg |= (sc->ex_xcvr);
PUT32(W3_INTERNAL_CONFIG, configreg);
/*
* If we're not using MII, force the full-duplex setting. MII
* based modes handle the full-duplex setting via the MII
* notify callback.
*/
if (!sc->ex_mii_active) {
uint16_t mctl;
mctl = GET16(W3_MAC_CONTROL);
if (sc->ex_fdx) {
mctl |= MAC_CONTROL_FDX;
} else {
mctl &= ~MAC_CONTROL_FDX;
}
PUT16(W3_MAC_CONTROL, mctl);
}
}
/*
* Get currently-selected media from card.
* (if_media callback, may be called before interface is brought up).
*/
static void
elxl_linkcheck(void *arg)
{
elxl_t *sc = arg;
uint16_t stat;
link_state_t link;
mutex_enter(&sc->ex_txlock);
if (sc->ex_mii_active) {
mutex_exit(&sc->ex_txlock);
return;
}
if (sc->ex_running && !sc->ex_suspended) {
switch (sc->ex_xcvr) {
case XCVR_SEL_100FX:
/* these media we can detect link on */
SET_WIN(4);
stat = GET16(W4_MEDIASTAT);
if (stat & MEDIASTAT_LINKDETECT) {
sc->ex_link = LINK_STATE_UP;
sc->ex_speed = 100000000;
} else {
sc->ex_link = LINK_STATE_DOWN;
sc->ex_speed = 0;
}
break;
case XCVR_SEL_10T:
/* these media we can detect link on */
SET_WIN(4);
stat = GET16(W4_MEDIASTAT);
if (stat & MEDIASTAT_LINKDETECT) {
sc->ex_link = LINK_STATE_UP;
sc->ex_speed = 10000000;
} else {
sc->ex_link = LINK_STATE_DOWN;
sc->ex_speed = 0;
}
break;
case XCVR_SEL_BNC:
case XCVR_SEL_AUI:
default:
/*
* For these we don't really know the answer,
* but if we lie then at least it won't cause
* ifconfig to turn off the RUNNING flag.
* This is necessary because we might
* transition from LINK_STATE_DOWN when
* switching media.
*/
sc->ex_speed = 10000000;
sc->ex_link = LINK_STATE_UP;
break;
}
SET_WIN(3);
sc->ex_duplex = GET16(W3_MAC_CONTROL) & MAC_CONTROL_FDX ?
LINK_DUPLEX_FULL : LINK_DUPLEX_HALF;
} else {
sc->ex_speed = 0;
sc->ex_duplex = LINK_DUPLEX_UNKNOWN;
sc->ex_link = LINK_STATE_UNKNOWN;
}
link = sc->ex_link;
mutex_exit(&sc->ex_txlock);
mac_link_update(sc->ex_mach, link);
}
static int
elxl_m_promisc(void *arg, boolean_t on)
{
elxl_t *sc = arg;
mutex_enter(&sc->ex_intrlock);
mutex_enter(&sc->ex_txlock);
sc->ex_promisc = on;
elxl_set_rxfilter(sc);
mutex_exit(&sc->ex_txlock);
mutex_exit(&sc->ex_intrlock);
return (0);
}
static int
elxl_m_multicst(void *arg, boolean_t add, const uint8_t *addr)
{
elxl_t *sc = arg;
_NOTE(ARGUNUSED(addr));
mutex_enter(&sc->ex_intrlock);
mutex_enter(&sc->ex_txlock);
if (add) {
sc->ex_mccount++;
if (sc->ex_mccount == 1) {
elxl_set_rxfilter(sc);
}
} else {
sc->ex_mccount--;
if (sc->ex_mccount == 0) {
elxl_set_rxfilter(sc);
}
}
mutex_exit(&sc->ex_txlock);
mutex_exit(&sc->ex_intrlock);
return (0);
}
static int
elxl_m_unicst(void *arg, const uint8_t *addr)
{
elxl_t *sc = arg;
mutex_enter(&sc->ex_intrlock);
mutex_enter(&sc->ex_txlock);
bcopy(addr, sc->ex_curraddr, ETHERADDRL);
elxl_set_rxfilter(sc);
mutex_exit(&sc->ex_txlock);
mutex_exit(&sc->ex_intrlock);
return (0);
}
static mblk_t *
elxl_m_tx(void *arg, mblk_t *mp)
{
elxl_t *sc = arg;
ex_desc_t *txd;
ex_desc_t *first;
ex_desc_t *tail;
size_t len;
ex_ring_t *r;
ex_pd_t *pd;
uint32_t cflags;
mblk_t *nmp;
boolean_t reenable = B_FALSE;
boolean_t reset = B_FALSE;
uint32_t paddr;
r = &sc->ex_txring;
mutex_enter(&sc->ex_txlock);
if (sc->ex_suspended) {
while (mp != NULL) {
sc->ex_nocarrier++;
nmp = mp->b_next;
freemsg(mp);
mp = nmp;
}
mutex_exit(&sc->ex_txlock);
return (NULL);
}
for (int limit = (EX_NTX * 2); limit; limit--) {
uint8_t stat = GET8(REG_TXSTATUS);
if ((stat & TXSTATUS_COMPLETE) == 0) {
break;
}
if (stat & TXSTATUS_MAXCOLLISIONS) {
reenable = B_TRUE;
sc->ex_excoll++;
}
if ((stat & TXSTATUS_ERRS) != 0) {
reset = B_TRUE;
if (stat & TXSTATUS_JABBER) {
sc->ex_jabber++;
}
if (stat & TXSTATUS_RECLAIM_ERR) {
sc->ex_txerr++;
}
if (stat & TXSTATUS_UNDERRUN) {
sc->ex_uflo++;
}
}
PUT8(REG_TXSTATUS, 0);
}
if (reset || reenable) {
paddr = GET32(REG_DNLISTPTR);
if (reset) {
WAIT_CMD(sc);
PUT_CMD(CMD_TX_RESET);
WAIT_CMD(sc);
elxl_setup_tx(sc);
}
PUT_CMD(CMD_TX_ENABLE);
if (paddr) {
PUT32(REG_DNLISTPTR, paddr);
}
}
/* first reclaim any free descriptors */
while (r->r_avail < r->r_count) {
paddr = GET32(REG_DNLISTPTR);
txd = r->r_head;
if (paddr == txd->ed_descaddr) {
/* still processing this one, we're done */
break;
}
if (paddr == 0) {
/* done processing the entire list! */
r->r_head = NULL;
r->r_tail = NULL;
r->r_avail = r->r_count;
break;
}
r->r_avail++;
r->r_head = txd->ed_next;
}
if ((r->r_avail < r->r_count) && (GET32(REG_DNLISTPTR) != 0)) {
PUT_CMD(CMD_DN_STALL);
WAIT_CMD(sc);
}
first = NULL;
tail = r->r_tail;
/*
* If there is already a tx list, select the next desc on the list.
* Otherwise, just pick the first descriptor.
*/
txd = tail ? tail->ed_next : &r->r_desc[0];
while ((mp != NULL) && (r->r_avail)) {
nmp = mp->b_next;
len = msgsize(mp);
if (len > (ETHERMAX + VLAN_TAGSZ)) {
sc->ex_txerr++;
freemsg(mp);
mp = nmp;
continue;
}
cflags = 0;
if ((sc->ex_conf & CONF_90XB) != 0) {
uint32_t pflags;
hcksum_retrieve(mp, NULL, NULL, NULL, NULL, NULL, NULL,
&pflags);
if (pflags & HCK_IPV4_HDRCKSUM) {
cflags |= EX_DPD_IPCKSUM;
}
if (pflags & HCK_FULLCKSUM) {
cflags |= (EX_DPD_TCPCKSUM | EX_DPD_UDPCKSUM);
}
}
/* Mark this descriptor is in use. We're committed now. */
mcopymsg(mp, txd->ed_buf); /* frees the mblk! */
r->r_avail--;
mp = nmp;
/* Accounting stuff. */
sc->ex_opackets++;
sc->ex_obytes += len;
if (txd->ed_buf[0] & 0x1) {
if (bcmp(txd->ed_buf, ex_broadcast, ETHERADDRL) != 0) {
sc->ex_multixmt++;
} else {
sc->ex_brdcstxmt++;
}
}
pd = txd->ed_pd;
/*
* Zero pad the frame if its too short. This
* also avoids a checksum offload bug.
*/
if (len < 30) {
bzero(txd->ed_buf + len, ETHERMIN - len);
len = ETHERMIN;
}
/*
* If this our first packet so far, record the head
* of the list.
*/
if (first == NULL) {
first = txd;
}
(void) ddi_dma_sync(txd->ed_dmah, 0, 0, DDI_DMA_SYNC_FORDEV);
PUT_PD(r, pd->pd_link, 0);
PUT_PD(r, pd->pd_fsh, len | cflags);
PUT_PD(r, pd->pd_addr, txd->ed_bufaddr);
PUT_PD(r, pd->pd_len, len | EX_FR_LAST);
/*
* Write the link into the previous descriptor. Note that
* if this is the first packet (so no previous queued), this
* will be benign because the previous descriptor won't be
* on any tx list. (Furthermore, we'll clear its link field
* when we do later use it.)
*/
PUT_PD(r, txd->ed_prev->ed_pd->pd_link, txd->ed_descaddr);
}
/*
* Are we submitting any packets?
*/
if (first != NULL) {
/* Interrupt on the last packet. */
PUT_PD(r, pd->pd_fsh, len | cflags | EX_DPD_DNIND);
if (tail == NULL) {
/* No packets pending, so its a new list head! */
r->r_head = first;
} else {
pd = tail->ed_pd;
/* We've added frames, so don't interrupt mid-list. */
PUT_PD(r, pd->pd_fsh,
GET_PD(r, pd->pd_fsh) & ~(EX_DPD_DNIND));
}
/* Record the last descriptor. */
r->r_tail = txd;
/* flush the entire ring - we're stopped so its safe */
(void) ddi_dma_sync(r->r_dmah, 0, 0, DDI_DMA_SYNC_FORDEV);
}
/* Restart transmitter. */
if (sc->ex_txring.r_head) {
PUT32(REG_DNLISTPTR, sc->ex_txring.r_head->ed_descaddr);
}
PUT_CMD(CMD_DN_UNSTALL);
mutex_exit(&sc->ex_txlock);
return (mp);
}
static mblk_t *
elxl_recv(elxl_t *sc, ex_desc_t *rxd, uint32_t stat)
{
mblk_t *mp = NULL;
uint32_t len;
len = stat & EX_UPD_PKTLENMASK;
if (stat & (EX_UPD_ERR_VLAN | EX_UPD_OVERFLOW)) {
if (stat & EX_UPD_RUNT) {
sc->ex_runt++;
}
if (stat & EX_UPD_OVERRUN) {
sc->ex_oflo++;
}
if (stat & EX_UPD_CRCERR) {
sc->ex_fcs++;
}
if (stat & EX_UPD_ALIGNERR) {
sc->ex_align++;
}
if (stat & EX_UPD_OVERFLOW) {
sc->ex_toolong++;
}
return (NULL);
}
if (len < sizeof (struct ether_header)) {
sc->ex_runt++;
return (NULL);
}
if (len > (ETHERMAX + VLAN_TAGSZ)) {
/* Allow four bytes for the VLAN header */
sc->ex_toolong++;
return (NULL);
}
if ((mp = allocb(len + 14, BPRI_HI)) == NULL) {
sc->ex_allocbfail++;
return (NULL);
}
(void) ddi_dma_sync(rxd->ed_dmah, 0, 0, DDI_DMA_SYNC_FORKERNEL);
mp->b_rptr += 14;
mp->b_wptr = mp->b_rptr + len;
bcopy(rxd->ed_buf, mp->b_rptr, len);
sc->ex_ipackets++;
sc->ex_ibytes += len;
if (rxd->ed_buf[0] & 0x1) {
if (bcmp(rxd->ed_buf, ex_broadcast, ETHERADDRL) != 0) {
sc->ex_multircv++;
} else {
sc->ex_brdcstrcv++;
}
}
/*
* Set the incoming checksum information for the packet.
*/
if (((sc->ex_conf & CONF_90XB) != 0) &&
((stat & EX_UPD_IPCHECKED) != 0) &&
((stat & (EX_UPD_CKSUMERR)) == 0)) {
uint32_t pflags = 0;
if (stat & EX_UPD_IPCHECKED) {
pflags |= HCK_IPV4_HDRCKSUM;
}
if (stat & (EX_UPD_TCPCHECKED | EX_UPD_UDPCHECKED)) {
pflags |= (HCK_FULLCKSUM | HCK_FULLCKSUM_OK);
}
(void) hcksum_assoc(mp, NULL, NULL, 0, 0, 0, 0, pflags, 0);
}
return (mp);
}
static int
elxl_m_start(void *arg)
{
elxl_t *sc = arg;
mutex_enter(&sc->ex_intrlock);
mutex_enter(&sc->ex_txlock);
elxl_init(sc);
sc->ex_running = B_TRUE;
mutex_exit(&sc->ex_txlock);
mutex_exit(&sc->ex_intrlock);
if (sc->ex_miih) {
mii_start(sc->ex_miih);
}
return (0);
}
static void
elxl_m_stop(void *arg)
{
elxl_t *sc = arg;
if (sc->ex_miih) {
mii_stop(sc->ex_miih);
}
mutex_enter(&sc->ex_intrlock);
mutex_enter(&sc->ex_txlock);
elxl_stop(sc);
sc->ex_running = B_FALSE;
mutex_exit(&sc->ex_txlock);
mutex_exit(&sc->ex_intrlock);
}
static boolean_t
elxl_m_getcapab(void *arg, mac_capab_t cap, void *data)
{
elxl_t *sc = arg;
switch (cap) {
case MAC_CAPAB_HCKSUM: {
uint32_t *flags = data;
if (sc->ex_conf & CONF_90XB) {
*flags = HCKSUM_IPHDRCKSUM | HCKSUM_INET_FULL_V4;
return (B_TRUE);
}
return (B_FALSE);
}
default:
return (B_FALSE);
}
}
static int
elxl_m_getprop(void *arg, const char *name, mac_prop_id_t num, uint_t sz,
void *val)
{
elxl_t *sc = arg;
int rv;
if (sc->ex_mii_active) {
rv = mii_m_getprop(sc->ex_miih, name, num, sz, val);
if (rv != ENOTSUP)
return (rv);
}
switch (num) {
case MAC_PROP_DUPLEX:
*(uint8_t *)val = sc->ex_duplex;
break;
case MAC_PROP_SPEED:
*(uint8_t *)val = sc->ex_speed;
break;
case MAC_PROP_STATUS:
bcopy(&sc->ex_link, val, sizeof (link_state_t));
break;
case MAC_PROP_PRIVATE:
if (strcmp(name, "_media") == 0) {
char *str;
switch (sc->ex_xcvr) {
case XCVR_SEL_AUTO:
case XCVR_SEL_MII:
str = "mii";
break;
case XCVR_SEL_10T:
str = sc->ex_fdx ? "tp-fdx" : "tp-hdx";
break;
case XCVR_SEL_BNC:
str = "bnc";
break;
case XCVR_SEL_AUI:
if (sc->ex_mediaopt & MEDIAOPT_10FL) {
str = sc->ex_fdx ? "fl-fdx" : "fl-hdx";
} else {
str = "aui";
}
break;
case XCVR_SEL_100FX:
str = sc->ex_fdx ? "fx-fdx" : "fx-hdx";
break;
default:
str = "unknown";
break;
}
(void) snprintf(val, sz, "%s", str);
return (0);
}
/*
* This available media property is a hack, and should
* be removed when we can provide proper support for
* querying it as proposed in PSARC 2009/235. (At the
* moment the implementation lacks support for using
* MAC_PROP_POSSIBLE with private properties.)
*/
if (strcmp(name, "_available_media") == 0) {
(void) snprintf(val, sz, "%s", sc->ex_medias);
return (0);
}
break;
}
return (ENOTSUP);
}
static int
elxl_m_setprop(void *arg, const char *name, mac_prop_id_t num, uint_t sz,
const void *val)
{
elxl_t *sc = arg;
int rv;
if (sc->ex_mii_active) {
rv = mii_m_setprop(sc->ex_miih, name, num, sz, val);
if (rv != ENOTSUP) {
return (rv);
}
}
switch (num) {
case MAC_PROP_PRIVATE:
if (strcmp(name, "_media") == 0) {
uint32_t mopt = sc->ex_mediaopt;
if (strcmp(val, "mii") == 0) {
if (mopt & MEDIAOPT_100TX) {
sc->ex_xcvr = XCVR_SEL_AUTO;
} else if (mopt & MEDIAOPT_MII) {
sc->ex_xcvr = XCVR_SEL_MII;
} else {
return (EINVAL);
}
} else if (strcmp(val, "tp-fdx") == 0) {
/* select media option */
if (mopt & MEDIAOPT_10T) {
sc->ex_xcvr = XCVR_SEL_10T;
sc->ex_fdx = B_TRUE;
} else {
return (EINVAL);
}
} else if (strcmp(val, "tp-hdx") == 0) {
/* select media option */
if (mopt & MEDIAOPT_10T) {
sc->ex_xcvr = XCVR_SEL_10T;
sc->ex_fdx = B_FALSE;
} else {
return (EINVAL);
}
} else if (strcmp(val, "fx-fdx") == 0) {
if (mopt & MEDIAOPT_100FX) {
sc->ex_xcvr = XCVR_SEL_100FX;
sc->ex_fdx = B_TRUE;
} else {
return (EINVAL);
}
} else if (strcmp(val, "fx-hdx") == 0) {
if (mopt & MEDIAOPT_100FX) {
sc->ex_xcvr = XCVR_SEL_100FX;
sc->ex_fdx = B_FALSE;
} else {
return (EINVAL);
}
} else if (strcmp(val, "bnc") == 0) {
if (mopt & MEDIAOPT_BNC) {
sc->ex_xcvr = XCVR_SEL_BNC;
sc->ex_fdx = B_FALSE;
} else {
return (EINVAL);
}
} else if (strcmp(val, "aui") == 0) {
if (mopt & MEDIAOPT_AUI) {
sc->ex_xcvr = XCVR_SEL_AUI;
sc->ex_fdx = B_FALSE;
} else {
return (EINVAL);
}
} else if (strcmp(val, "fl-fdx") == 0) {
if (mopt & MEDIAOPT_10FL) {
sc->ex_xcvr = XCVR_SEL_AUI;
sc->ex_fdx = B_TRUE;
} else {
return (EINVAL);
}
} else if (strcmp(val, "fl-hdx") == 0) {
if (mopt & MEDIAOPT_10FL) {
sc->ex_xcvr = XCVR_SEL_AUI;
sc->ex_fdx = B_FALSE;
} else {
return (EINVAL);
}
} else {
return (EINVAL);
}
goto reset;
}
break;
default:
break;
}
return (ENOTSUP);
reset:
mutex_enter(&sc->ex_intrlock);
mutex_enter(&sc->ex_txlock);
if (!sc->ex_suspended) {
elxl_reset(sc);
if (sc->ex_running) {
elxl_init(sc);
}
}
mutex_exit(&sc->ex_txlock);
mutex_exit(&sc->ex_intrlock);
return (0);
}
static void
elxl_m_propinfo(void *arg, const char *name, mac_prop_id_t num,
mac_prop_info_handle_t prh)
{
elxl_t *sc = arg;
if (sc->ex_mii_active)
mii_m_propinfo(sc->ex_miih, name, num, prh);
switch (num) {
case MAC_PROP_DUPLEX:
case MAC_PROP_SPEED:
case MAC_PROP_STATUS:
mac_prop_info_set_perm(prh, MAC_PROP_PERM_READ);
break;
case MAC_PROP_PRIVATE:
if (strcmp(name, "_available_media") == 0)
mac_prop_info_set_perm(prh, MAC_PROP_PERM_READ);
break;
}
}
static int
elxl_m_stat(void *arg, uint_t stat, uint64_t *val)
{
elxl_t *sc = arg;
if (stat == MAC_STAT_IFSPEED) {
elxl_getstats(sc);
}
if ((sc->ex_mii_active) &&
(mii_m_getstat(sc->ex_miih, stat, val) == 0)) {
return (0);
}
switch (stat) {
case MAC_STAT_IFSPEED:
*val = sc->ex_speed;
break;
case ETHER_STAT_LINK_DUPLEX:
*val = sc->ex_duplex;
break;
case MAC_STAT_MULTIRCV:
*val = sc->ex_multircv;
break;
case MAC_STAT_BRDCSTRCV:
*val = sc->ex_brdcstrcv;
break;
case MAC_STAT_MULTIXMT:
*val = sc->ex_multixmt;
break;
case MAC_STAT_BRDCSTXMT:
*val = sc->ex_brdcstxmt;
break;
case MAC_STAT_IPACKETS:
*val = sc->ex_ipackets;
break;
case MAC_STAT_OPACKETS:
*val = sc->ex_opackets;
break;
case MAC_STAT_RBYTES:
*val = sc->ex_ibytes;
break;
case MAC_STAT_OBYTES:
*val = sc->ex_obytes;
break;
case MAC_STAT_COLLISIONS:
case ETHER_STAT_FIRST_COLLISIONS:
*val = sc->ex_singlecol + sc->ex_multcol;
break;
case ETHER_STAT_MULTI_COLLISIONS:
*val = sc->ex_multcol;
break;
case ETHER_STAT_TX_LATE_COLLISIONS:
*val = sc->ex_latecol;
break;
case ETHER_STAT_ALIGN_ERRORS:
*val = sc->ex_align;
break;
case ETHER_STAT_FCS_ERRORS:
*val = sc->ex_fcs;
break;
case ETHER_STAT_SQE_ERRORS:
*val = sc->ex_sqe;
break;
case ETHER_STAT_DEFER_XMTS:
*val = sc->ex_defer;
break;
case ETHER_STAT_CARRIER_ERRORS:
*val = sc->ex_nocarrier;
break;
case ETHER_STAT_TOOLONG_ERRORS:
*val = sc->ex_toolong;
break;
case ETHER_STAT_EX_COLLISIONS:
*val = sc->ex_excoll;
break;
case MAC_STAT_OVERFLOWS:
*val = sc->ex_oflo;
break;
case MAC_STAT_UNDERFLOWS:
*val = sc->ex_uflo;
break;
case ETHER_STAT_TOOSHORT_ERRORS:
*val = sc->ex_runt;
break;
case ETHER_STAT_JABBER_ERRORS:
*val = sc->ex_jabber;
break;
case MAC_STAT_NORCVBUF:
*val = sc->ex_allocbfail;
break;
case MAC_STAT_OERRORS:
*val = sc->ex_jabber + sc->ex_latecol + sc->ex_uflo;
break;
case MAC_STAT_IERRORS:
*val = sc->ex_align + sc->ex_fcs + sc->ex_runt +
sc->ex_toolong + sc->ex_oflo + sc->ex_allocbfail;
break;
default:
return (ENOTSUP);
}
return (0);
}
static uint_t
elxl_intr(caddr_t arg, caddr_t dontcare)
{
elxl_t *sc = (void *)arg;
uint16_t stat;
mblk_t *mphead = NULL;
mblk_t **mpp = &mphead;
_NOTE(ARGUNUSED(dontcare));
mutex_enter(&sc->ex_intrlock);
if (sc->ex_suspended) {
mutex_exit(&sc->ex_intrlock);
return (DDI_INTR_UNCLAIMED);
}
stat = GET16(REG_CMD_STAT);
if ((stat & INT_LATCH) == 0) {
mutex_exit(&sc->ex_intrlock);
return (DDI_INTR_UNCLAIMED);
}
/*
* Acknowledge interrupts.
*/
PUT_CMD(CMD_INT_ACK | (stat & INT_WATCHED) | INT_LATCH);
if (stat & INT_HOST_ERROR) {
/* XXX: Potentially a good spot for FMA */
elxl_error(sc, "Adapter failure (%x)", stat);
mutex_enter(&sc->ex_txlock);
elxl_reset(sc);
if (sc->ex_running)
elxl_init(sc);
mutex_exit(&sc->ex_txlock);
mutex_exit(&sc->ex_intrlock);
return (DDI_INTR_CLAIMED);
}
if (stat & INT_UP_COMPLETE) {
ex_ring_t *r;
ex_desc_t *rxd;
ex_pd_t *pd;
mblk_t *mp;
uint32_t pktstat;
r = &sc->ex_rxring;
for (;;) {
rxd = r->r_head;
pd = rxd->ed_pd;
(void) ddi_dma_sync(r->r_dmah, rxd->ed_off,
sizeof (ex_pd_t), DDI_DMA_SYNC_FORKERNEL);
pktstat = GET_PD(r, pd->pd_status);
if ((pktstat & EX_UPD_COMPLETE) == 0) {
break;
}
/* Advance head to next packet. */
r->r_head = r->r_head->ed_next;
if ((mp = elxl_recv(sc, rxd, pktstat)) != NULL) {
*mpp = mp;
mpp = &mp->b_next;
}
/* clear the upComplete status, reset other fields */
PUT_PD(r, pd->pd_status, 0);
PUT_PD(r, pd->pd_len, EX_BUFSZ | EX_FR_LAST);
PUT_PD(r, pd->pd_addr, rxd->ed_bufaddr);
(void) ddi_dma_sync(r->r_dmah, rxd->ed_off,
sizeof (ex_pd_t), DDI_DMA_SYNC_FORDEV);
}
/*
* If the engine stalled processing (due to
* insufficient UPDs usually), restart it.
*/
if (GET32(REG_UPLISTPTR) == 0) {
/*
* This seems that it can happen in an RX overrun
* situation.
*/
mutex_enter(&sc->ex_txlock);
if (sc->ex_running)
elxl_init(sc);
mutex_exit(&sc->ex_txlock);
}
PUT_CMD(CMD_UP_UNSTALL);
}
mutex_exit(&sc->ex_intrlock);
if (mphead) {
mac_rx(sc->ex_mach, NULL, mphead);
}
if (stat & INT_STATS) {
elxl_getstats(sc);
}
if (stat & INT_DN_COMPLETE) {
mac_tx_update(sc->ex_mach);
}
return (DDI_INTR_CLAIMED);
}
static void
elxl_getstats(elxl_t *sc)
{
mutex_enter(&sc->ex_txlock);
if (sc->ex_suspended) {
mutex_exit(&sc->ex_txlock);
return;
}
SET_WIN(6);
/*
* We count the packets and bytes elsewhere, but we need to
* read the registers to clear them.
*/
(void) GET8(W6_RX_FRAMES);
(void) GET8(W6_TX_FRAMES);
(void) GET8(W6_UPPER_FRAMES);
(void) GET8(W6_RX_OVERRUNS); /* counted by elxl_recv */
(void) GET16(W6_RX_BYTES);
(void) GET16(W6_TX_BYTES);
sc->ex_defer += GET8(W6_DEFER);
sc->ex_latecol += GET8(W6_TX_LATE_COL);
sc->ex_singlecol += GET8(W6_SINGLE_COL);
sc->ex_multcol += GET8(W6_MULT_COL);
sc->ex_sqe += GET8(W6_SQE_ERRORS);
sc->ex_nocarrier += GET8(W6_NO_CARRIER);
SET_WIN(4);
/* Note: we ought to report this somewhere... */
(void) GET8(W4_BADSSD);
mutex_exit(&sc->ex_txlock);
}
static void
elxl_reset(elxl_t *sc)
{
PUT_CMD(CMD_GLOBAL_RESET);
/*
* Some ASICs need a longer time (20 ms) to come properly out
* of reset. Do not reduce this value.
*
* Note that this occurs only during attach and failure recovery,
* so it should be mostly harmless.
*/
drv_usecwait(20000);
WAIT_CMD(sc);
}
static void
elxl_stop(elxl_t *sc)
{
ASSERT(mutex_owned(&sc->ex_intrlock));
ASSERT(mutex_owned(&sc->ex_txlock));
if (sc->ex_suspended)
return;
PUT_CMD(CMD_RX_DISABLE);
PUT_CMD(CMD_TX_DISABLE);
PUT_CMD(CMD_BNC_DISABLE);
elxl_reset_ring(&sc->ex_rxring, DDI_DMA_READ);
elxl_reset_ring(&sc->ex_txring, DDI_DMA_WRITE);
PUT_CMD(CMD_INT_ACK | INT_LATCH);
/* Disable all interrupts. (0 means "none".) */
PUT_CMD(CMD_INT_ENABLE | 0);
}
static void
elxl_suspend(elxl_t *sc)
{
if (sc->ex_miih) {
mii_suspend(sc->ex_miih);
}
mutex_enter(&sc->ex_intrlock);
mutex_enter(&sc->ex_txlock);
elxl_stop(sc);
sc->ex_suspended = B_TRUE;
mutex_exit(&sc->ex_txlock);
mutex_exit(&sc->ex_intrlock);
}
static void
elxl_resume(dev_info_t *dip)
{
elxl_t *sc;
/* This should always succeed. */
sc = ddi_get_driver_private(dip);
ASSERT(sc);
mutex_enter(&sc->ex_intrlock);
mutex_enter(&sc->ex_txlock);
sc->ex_suspended = B_FALSE;
elxl_reset(sc);
if (sc->ex_running)
elxl_init(sc);
mutex_exit(&sc->ex_txlock);
mutex_exit(&sc->ex_intrlock);
if (sc->ex_miih) {
mii_resume(sc->ex_miih);
}
}
static void
elxl_detach(elxl_t *sc)
{
if (sc->ex_miih) {
/* Detach all PHYs */
mii_free(sc->ex_miih);
}
if (sc->ex_linkcheck) {
ddi_periodic_delete(sc->ex_linkcheck);
}
if (sc->ex_intrh != NULL) {
(void) ddi_intr_disable(sc->ex_intrh);
(void) ddi_intr_remove_handler(sc->ex_intrh);
(void) ddi_intr_free(sc->ex_intrh);
mutex_destroy(&sc->ex_intrlock);
mutex_destroy(&sc->ex_txlock);
}
if (sc->ex_pcih) {
pci_config_teardown(&sc->ex_pcih);
}
if (sc->ex_regsh) {
ddi_regs_map_free(&sc->ex_regsh);
}
ex_free_ring(&sc->ex_txring);
ex_free_ring(&sc->ex_rxring);
kmem_free(sc, sizeof (*sc));
}
/*
* Read EEPROM data. If we can't unbusy the EEPROM, then zero will be
* returned. This will probably result in a bogus node address.
*/
static uint16_t
elxl_read_eeprom(elxl_t *sc, int offset)
{
uint16_t data = 0;
SET_WIN(0);
if (elxl_eeprom_busy(sc))
goto out;
PUT16(W0_EE_CMD, EE_CMD_READ | (offset & 0x3f));
if (elxl_eeprom_busy(sc))
goto out;
data = GET16(W0_EE_DATA);
out:
return (data);
}
static int
elxl_eeprom_busy(elxl_t *sc)
{
int i = 2000;
while (i--) {
if (!(GET16(W0_EE_CMD) & EE_CMD_BUSY))
return (0);
drv_usecwait(100);
}
elxl_error(sc, "Eeprom stays busy.");
return (1);
}
static void
ex_mii_send_bits(struct ex_softc *sc, uint16_t bits, int cnt)
{
uint16_t val;
ASSERT(cnt > 0);
PUT16(W4_PHYSMGMT, PHYSMGMT_DIR);
drv_usecwait(1);
for (int i = (1 << (cnt - 1)); i; i >>= 1) {
if (bits & i) {
val = PHYSMGMT_DIR | PHYSMGMT_DATA;
} else {
val = PHYSMGMT_DIR;
}
PUT16(W4_PHYSMGMT, val);
drv_usecwait(1);
PUT16(W4_PHYSMGMT, val | PHYSMGMT_CLK);
drv_usecwait(1);
PUT16(W4_PHYSMGMT, val);
drv_usecwait(1);
}
}
static void
ex_mii_sync(struct ex_softc *sc)
{
/*
* We set the data bit output, and strobe the clock 32 times.
*/
PUT16(W4_PHYSMGMT, PHYSMGMT_DATA | PHYSMGMT_DIR);
drv_usecwait(1);
for (int i = 0; i < 32; i++) {
PUT16(W4_PHYSMGMT, PHYSMGMT_DATA | PHYSMGMT_DIR | PHYSMGMT_CLK);
drv_usecwait(1);
PUT16(W4_PHYSMGMT, PHYSMGMT_DATA | PHYSMGMT_DIR);
drv_usecwait(1);
}
}
static uint16_t
elxl_mii_read(void *arg, uint8_t phy, uint8_t reg)
{
elxl_t *sc = arg;
uint16_t data;
int val;
if ((sc->ex_conf & CONF_INTPHY) && phy != INTPHY_ID)
return (0xffff);
mutex_enter(&sc->ex_txlock);
SET_WIN(4);
ex_mii_sync(sc);
ex_mii_send_bits(sc, 1, 2); /* start */
ex_mii_send_bits(sc, 2, 2); /* read command */
ex_mii_send_bits(sc, phy, 5);
ex_mii_send_bits(sc, reg, 5);
PUT16(W4_PHYSMGMT, 0); /* switch to input */
drv_usecwait(1);
PUT16(W4_PHYSMGMT, PHYSMGMT_CLK); /* turnaround time */
drv_usecwait(1);
PUT16(W4_PHYSMGMT, 0);
drv_usecwait(1);
PUT16(W4_PHYSMGMT, PHYSMGMT_CLK); /* idle time */
drv_usecwait(1);
PUT16(W4_PHYSMGMT, 0);
drv_usecwait(1);
for (data = 0, val = 0x8000; val; val >>= 1) {
if (GET16(W4_PHYSMGMT) & PHYSMGMT_DATA) {
data |= val;
}
/* strobe the clock */
PUT16(W4_PHYSMGMT, PHYSMGMT_CLK);
drv_usecwait(1);
PUT16(W4_PHYSMGMT, 0);
drv_usecwait(1);
}
/* return to output mode */
PUT16(W4_PHYSMGMT, PHYSMGMT_DIR);
drv_usecwait(1);
mutex_exit(&sc->ex_txlock);
return (data);
}
static void
elxl_mii_write(void *arg, uint8_t phy, uint8_t reg, uint16_t data)
{
elxl_t *sc = arg;
if ((sc->ex_conf & CONF_INTPHY) && phy != INTPHY_ID)
return;
mutex_enter(&sc->ex_txlock);
SET_WIN(4);
ex_mii_sync(sc);
ex_mii_send_bits(sc, 1, 2); /* start */
ex_mii_send_bits(sc, 1, 2); /* write */
ex_mii_send_bits(sc, phy, 5);
ex_mii_send_bits(sc, reg, 5);
ex_mii_send_bits(sc, 2, 2); /* ack/turnaround */
ex_mii_send_bits(sc, data, 16);
/* return to output mode */
PUT16(W4_PHYSMGMT, PHYSMGMT_DIR);
drv_usecwait(1);
mutex_exit(&sc->ex_txlock);
}
static void
elxl_mii_notify(void *arg, link_state_t link)
{
elxl_t *sc = arg;
int mctl;
link_duplex_t duplex;
duplex = mii_get_duplex(sc->ex_miih);
mutex_enter(&sc->ex_txlock);
if (!sc->ex_mii_active) {
/* If we're using some other legacy media, bail out now */
mutex_exit(&sc->ex_txlock);
return;
}
if (!sc->ex_suspended) {
SET_WIN(3);
mctl = GET16(W3_MAC_CONTROL);
if (duplex == LINK_DUPLEX_FULL)
mctl |= MAC_CONTROL_FDX;
else
mctl &= ~MAC_CONTROL_FDX;
PUT16(W3_MAC_CONTROL, mctl);
}
mutex_exit(&sc->ex_txlock);
mac_link_update(sc->ex_mach, link);
}
static int
elxl_ddi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
{
switch (cmd) {
case DDI_ATTACH:
return (elxl_attach(dip));
case DDI_RESUME:
elxl_resume(dip);
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
}
static int
elxl_ddi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
{
elxl_t *sc;
sc = ddi_get_driver_private(dip);
ASSERT(sc);
switch (cmd) {
case DDI_DETACH:
if (mac_disable(sc->ex_mach) != 0) {
return (DDI_FAILURE);
}
(void) mac_unregister(sc->ex_mach);
elxl_detach(sc);
return (DDI_SUCCESS);
case DDI_SUSPEND:
elxl_suspend(sc);
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
}
static int
elxl_ddi_quiesce(dev_info_t *dip)
{
elxl_t *sc;
sc = ddi_get_driver_private(dip);
ASSERT(sc);
if (!sc->ex_suspended)
elxl_reset(sc);
return (DDI_SUCCESS);
}
static void
elxl_error(elxl_t *sc, char *fmt, ...)
{
va_list ap;
char buf[256];
va_start(ap, fmt);
(void) vsnprintf(buf, sizeof (buf), fmt, ap);
va_end(ap);
cmn_err(CE_WARN, "%s%d: %s",
ddi_driver_name(sc->ex_dip), ddi_get_instance(sc->ex_dip), buf);
}