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c49c604bed
freebsd-skq/sys/dev/txp/if_txp.c
rwatson 9fc2ef2be3 Since if_txp doesn't contain locking or run with INTR_MPSAFE, mark 
the interface as IFF_NEEDSGIANT so if_start is run holding Giant.

Note: mutexes are initialized in the softc for this driver, but the
locking appears inadequate to allow Giant-free operation.
2004-08-13 23:53:36 +00:00

1872 lines
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/* $OpenBSD: if_txp.c,v 1.48 2001/06/27 06:34:50 kjc Exp $ */
/*
* Copyright (c) 2001
* Jason L. Wright <jason@thought.net>, Theo de Raadt, and
* Aaron Campbell <aaron@monkey.org>. All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Jason L. Wright,
* Theo de Raadt and Aaron Campbell.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 Bill Paul OR THE VOICES IN HIS HEAD
* 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/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Driver for 3c990 (Typhoon) Ethernet ASIC
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/if_vlan_var.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#include <machine/in_cksum.h>
#include <net/if_media.h>
#include <net/bpf.h>
#include <vm/vm.h> /* for vtophys */
#include <vm/pmap.h> /* for vtophys */
#include <machine/clock.h> /* for DELAY */
#include <machine/bus_pio.h>
#include <machine/bus_memio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#define TXP_USEIOSPACE
#define __STRICT_ALIGNMENT
#include <dev/txp/if_txpreg.h>
#include <dev/txp/3c990img.h>
#ifndef lint
static const char rcsid[] =
"$FreeBSD$";
#endif
/*
* Various supported device vendors/types and their names.
*/
static struct txp_type txp_devs[] = {
{ TXP_VENDORID_3COM, TXP_DEVICEID_3CR990_TX_95,
"3Com 3cR990-TX-95 Etherlink with 3XP Processor" },
{ TXP_VENDORID_3COM, TXP_DEVICEID_3CR990_TX_97,
"3Com 3cR990-TX-97 Etherlink with 3XP Processor" },
{ TXP_VENDORID_3COM, TXP_DEVICEID_3CR990B_TXM,
"3Com 3cR990B-TXM Etherlink with 3XP Processor" },
{ TXP_VENDORID_3COM, TXP_DEVICEID_3CR990_SRV_95,
"3Com 3cR990-SRV-95 Etherlink Server with 3XP Processor" },
{ TXP_VENDORID_3COM, TXP_DEVICEID_3CR990_SRV_97,
"3Com 3cR990-SRV-97 Etherlink Server with 3XP Processor" },
{ TXP_VENDORID_3COM, TXP_DEVICEID_3CR990B_SRV,
"3Com 3cR990B-SRV Etherlink Server with 3XP Processor" },
{ 0, 0, NULL }
};
static int txp_probe (device_t);
static int txp_attach (device_t);
static int txp_detach (device_t);
static void txp_intr (void *);
static void txp_tick (void *);
static int txp_shutdown (device_t);
static int txp_ioctl (struct ifnet *, u_long, caddr_t);
static void txp_start (struct ifnet *);
static void txp_stop (struct txp_softc *);
static void txp_init (void *);
static void txp_watchdog (struct ifnet *);
static void txp_release_resources(struct txp_softc *);
static int txp_chip_init(struct txp_softc *);
static int txp_reset_adapter(struct txp_softc *);
static int txp_download_fw(struct txp_softc *);
static int txp_download_fw_wait(struct txp_softc *);
static int txp_download_fw_section (struct txp_softc *,
struct txp_fw_section_header *, int);
static int txp_alloc_rings(struct txp_softc *);
static int txp_rxring_fill(struct txp_softc *);
static void txp_rxring_empty(struct txp_softc *);
static void txp_set_filter(struct txp_softc *);
static int txp_cmd_desc_numfree(struct txp_softc *);
static int txp_command (struct txp_softc *, u_int16_t, u_int16_t, u_int32_t,
u_int32_t, u_int16_t *, u_int32_t *, u_int32_t *, int);
static int txp_command2 (struct txp_softc *, u_int16_t, u_int16_t,
u_int32_t, u_int32_t, struct txp_ext_desc *, u_int8_t,
struct txp_rsp_desc **, int);
static int txp_response (struct txp_softc *, u_int32_t, u_int16_t, u_int16_t,
struct txp_rsp_desc **);
static void txp_rsp_fixup (struct txp_softc *, struct txp_rsp_desc *,
struct txp_rsp_desc *);
static void txp_capabilities(struct txp_softc *);
static void txp_ifmedia_sts(struct ifnet *, struct ifmediareq *);
static int txp_ifmedia_upd(struct ifnet *);
#ifdef TXP_DEBUG
static void txp_show_descriptor(void *);
#endif
static void txp_tx_reclaim(struct txp_softc *, struct txp_tx_ring *);
static void txp_rxbuf_reclaim(struct txp_softc *);
static void txp_rx_reclaim(struct txp_softc *, struct txp_rx_ring *);
#ifdef TXP_USEIOSPACE
#define TXP_RES SYS_RES_IOPORT
#define TXP_RID TXP_PCI_LOIO
#else
#define TXP_RES SYS_RES_MEMORY
#define TXP_RID TXP_PCI_LOMEM
#endif
static device_method_t txp_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, txp_probe),
DEVMETHOD(device_attach, txp_attach),
DEVMETHOD(device_detach, txp_detach),
DEVMETHOD(device_shutdown, txp_shutdown),
{ 0, 0 }
};
static driver_t txp_driver = {
"txp",
txp_methods,
sizeof(struct txp_softc)
};
static devclass_t txp_devclass;
DRIVER_MODULE(txp, pci, txp_driver, txp_devclass, 0, 0);
MODULE_DEPEND(txp, pci, 1, 1, 1);
MODULE_DEPEND(txp, ether, 1, 1, 1);
static int
txp_probe(dev)
device_t dev;
{
struct txp_type *t;
t = txp_devs;
while(t->txp_name != NULL) {
if ((pci_get_vendor(dev) == t->txp_vid) &&
(pci_get_device(dev) == t->txp_did)) {
device_set_desc(dev, t->txp_name);
return(0);
}
t++;
}
return(ENXIO);
}
static int
txp_attach(dev)
device_t dev;
{
struct txp_softc *sc;
struct ifnet *ifp;
u_int16_t p1;
u_int32_t p2;
int unit, error = 0, rid;
sc = device_get_softc(dev);
unit = device_get_unit(dev);
sc->sc_dev = dev;
sc->sc_cold = 1;
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
MTX_DEF | MTX_RECURSE);
/*
* Map control/status registers.
*/
pci_enable_busmaster(dev);
rid = TXP_RID;
sc->sc_res = bus_alloc_resource_any(dev, TXP_RES, &rid,
RF_ACTIVE);
if (sc->sc_res == NULL) {
device_printf(dev, "couldn't map ports/memory\n");
error = ENXIO;
goto fail;
}
sc->sc_bt = rman_get_bustag(sc->sc_res);
sc->sc_bh = rman_get_bushandle(sc->sc_res);
/* Allocate interrupt */
rid = 0;
sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
if (sc->sc_irq == NULL) {
device_printf(dev, "couldn't map interrupt\n");
txp_release_resources(sc);
error = ENXIO;
goto fail;
}
error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_NET,
txp_intr, sc, &sc->sc_intrhand);
if (error) {
txp_release_resources(sc);
device_printf(dev, "couldn't set up irq\n");
goto fail;
}
if (txp_chip_init(sc)) {
txp_release_resources(sc);
goto fail;
}
sc->sc_fwbuf = contigmalloc(32768, M_DEVBUF,
M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0);
error = txp_download_fw(sc);
contigfree(sc->sc_fwbuf, 32768, M_DEVBUF);
sc->sc_fwbuf = NULL;
if (error) {
txp_release_resources(sc);
goto fail;
}
sc->sc_ldata = contigmalloc(sizeof(struct txp_ldata), M_DEVBUF,
M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0);
bzero(sc->sc_ldata, sizeof(struct txp_ldata));
if (txp_alloc_rings(sc)) {
txp_release_resources(sc);
goto fail;
}
if (txp_command(sc, TXP_CMD_MAX_PKT_SIZE_WRITE, TXP_MAX_PKTLEN, 0, 0,
NULL, NULL, NULL, 1)) {
txp_release_resources(sc);
goto fail;
}
if (txp_command(sc, TXP_CMD_STATION_ADDRESS_READ, 0, 0, 0,
&p1, &p2, NULL, 1)) {
txp_release_resources(sc);
goto fail;
}
txp_set_filter(sc);
sc->sc_arpcom.ac_enaddr[0] = ((u_int8_t *)&p1)[1];
sc->sc_arpcom.ac_enaddr[1] = ((u_int8_t *)&p1)[0];
sc->sc_arpcom.ac_enaddr[2] = ((u_int8_t *)&p2)[3];
sc->sc_arpcom.ac_enaddr[3] = ((u_int8_t *)&p2)[2];
sc->sc_arpcom.ac_enaddr[4] = ((u_int8_t *)&p2)[1];
sc->sc_arpcom.ac_enaddr[5] = ((u_int8_t *)&p2)[0];
sc->sc_cold = 0;
ifmedia_init(&sc->sc_ifmedia, 0, txp_ifmedia_upd, txp_ifmedia_sts);
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_100_TX|IFM_HDX, 0, NULL);
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
sc->sc_xcvr = TXP_XCVR_AUTO;
txp_command(sc, TXP_CMD_XCVR_SELECT, TXP_XCVR_AUTO, 0, 0,
NULL, NULL, NULL, 0);
ifmedia_set(&sc->sc_ifmedia, IFM_ETHER|IFM_AUTO);
ifp = &sc->sc_arpcom.ac_if;
ifp->if_softc = sc;
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
ifp->if_mtu = ETHERMTU;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
IFF_NEEDSGIANT;
ifp->if_ioctl = txp_ioctl;
ifp->if_start = txp_start;
ifp->if_watchdog = txp_watchdog;
ifp->if_init = txp_init;
ifp->if_baudrate = 100000000;
ifp->if_snd.ifq_maxlen = TX_ENTRIES;
ifp->if_hwassist = 0;
txp_capabilities(sc);
/*
* Attach us everywhere
*/
ether_ifattach(ifp, sc->sc_arpcom.ac_enaddr);
callout_handle_init(&sc->sc_tick);
return(0);
fail:
txp_release_resources(sc);
mtx_destroy(&sc->sc_mtx);
return(error);
}
static int
txp_detach(dev)
device_t dev;
{
struct txp_softc *sc;
struct ifnet *ifp;
int i;
sc = device_get_softc(dev);
ifp = &sc->sc_arpcom.ac_if;
txp_stop(sc);
txp_shutdown(dev);
ifmedia_removeall(&sc->sc_ifmedia);
ether_ifdetach(ifp);
for (i = 0; i < RXBUF_ENTRIES; i++)
free(sc->sc_rxbufs[i].rb_sd, M_DEVBUF);
txp_release_resources(sc);
mtx_destroy(&sc->sc_mtx);
return(0);
}
static void
txp_release_resources(sc)
struct txp_softc *sc;
{
device_t dev;
dev = sc->sc_dev;
if (sc->sc_intrhand != NULL)
bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand);
if (sc->sc_irq != NULL)
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
if (sc->sc_res != NULL)
bus_release_resource(dev, TXP_RES, TXP_RID, sc->sc_res);
if (sc->sc_ldata != NULL)
contigfree(sc->sc_ldata, sizeof(struct txp_ldata), M_DEVBUF);
return;
}
static int
txp_chip_init(sc)
struct txp_softc *sc;
{
/* disable interrupts */
WRITE_REG(sc, TXP_IER, 0);
WRITE_REG(sc, TXP_IMR,
TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
TXP_INT_LATCH);
/* ack all interrupts */
WRITE_REG(sc, TXP_ISR, TXP_INT_RESERVED | TXP_INT_LATCH |
TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
TXP_INT_A2H_3 | TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0);
if (txp_reset_adapter(sc))
return (-1);
/* disable interrupts */
WRITE_REG(sc, TXP_IER, 0);
WRITE_REG(sc, TXP_IMR,
TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
TXP_INT_LATCH);
/* ack all interrupts */
WRITE_REG(sc, TXP_ISR, TXP_INT_RESERVED | TXP_INT_LATCH |
TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
TXP_INT_A2H_3 | TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0);
return (0);
}
static int
txp_reset_adapter(sc)
struct txp_softc *sc;
{
u_int32_t r;
int i;
r = 0;
WRITE_REG(sc, TXP_SRR, TXP_SRR_ALL);
DELAY(1000);
WRITE_REG(sc, TXP_SRR, 0);
/* Should wait max 6 seconds */
for (i = 0; i < 6000; i++) {
r = READ_REG(sc, TXP_A2H_0);
if (r == STAT_WAITING_FOR_HOST_REQUEST)
break;
DELAY(1000);
}
if (r != STAT_WAITING_FOR_HOST_REQUEST) {
device_printf(sc->sc_dev, "reset hung\n");
return (-1);
}
return (0);
}
static int
txp_download_fw(sc)
struct txp_softc *sc;
{
struct txp_fw_file_header *fileheader;
struct txp_fw_section_header *secthead;
int sect;
u_int32_t r, i, ier, imr;
r = 0;
ier = READ_REG(sc, TXP_IER);
WRITE_REG(sc, TXP_IER, ier | TXP_INT_A2H_0);
imr = READ_REG(sc, TXP_IMR);
WRITE_REG(sc, TXP_IMR, imr | TXP_INT_A2H_0);
for (i = 0; i < 10000; i++) {
r = READ_REG(sc, TXP_A2H_0);
if (r == STAT_WAITING_FOR_HOST_REQUEST)
break;
DELAY(50);
}
if (r != STAT_WAITING_FOR_HOST_REQUEST) {
device_printf(sc->sc_dev, "not waiting for host request\n");
return (-1);
}
/* Ack the status */
WRITE_REG(sc, TXP_ISR, TXP_INT_A2H_0);
fileheader = (struct txp_fw_file_header *)tc990image;
if (bcmp("TYPHOON", fileheader->magicid, sizeof(fileheader->magicid))) {
device_printf(sc->sc_dev, "fw invalid magic\n");
return (-1);
}
/* Tell boot firmware to get ready for image */
WRITE_REG(sc, TXP_H2A_1, fileheader->addr);
WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_RUNTIME_IMAGE);
if (txp_download_fw_wait(sc)) {
device_printf(sc->sc_dev, "fw wait failed, initial\n");
return (-1);
}
secthead = (struct txp_fw_section_header *)(((u_int8_t *)tc990image) +
sizeof(struct txp_fw_file_header));
for (sect = 0; sect < fileheader->nsections; sect++) {
if (txp_download_fw_section(sc, secthead, sect))
return (-1);
secthead = (struct txp_fw_section_header *)
(((u_int8_t *)secthead) + secthead->nbytes +
sizeof(*secthead));
}
WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_DOWNLOAD_COMPLETE);
for (i = 0; i < 10000; i++) {
r = READ_REG(sc, TXP_A2H_0);
if (r == STAT_WAITING_FOR_BOOT)
break;
DELAY(50);
}
if (r != STAT_WAITING_FOR_BOOT) {
device_printf(sc->sc_dev, "not waiting for boot\n");
return (-1);
}
WRITE_REG(sc, TXP_IER, ier);
WRITE_REG(sc, TXP_IMR, imr);
return (0);
}
static int
txp_download_fw_wait(sc)
struct txp_softc *sc;
{
u_int32_t i, r;
r = 0;
for (i = 0; i < 10000; i++) {
r = READ_REG(sc, TXP_ISR);
if (r & TXP_INT_A2H_0)
break;
DELAY(50);
}
if (!(r & TXP_INT_A2H_0)) {
device_printf(sc->sc_dev, "fw wait failed comm0\n");
return (-1);
}
WRITE_REG(sc, TXP_ISR, TXP_INT_A2H_0);
r = READ_REG(sc, TXP_A2H_0);
if (r != STAT_WAITING_FOR_SEGMENT) {
device_printf(sc->sc_dev, "fw not waiting for segment\n");
return (-1);
}
return (0);
}
static int
txp_download_fw_section(sc, sect, sectnum)
struct txp_softc *sc;
struct txp_fw_section_header *sect;
int sectnum;
{
vm_offset_t dma;
int rseg, err = 0;
struct mbuf m;
u_int16_t csum;
/* Skip zero length sections */
if (sect->nbytes == 0)
return (0);
/* Make sure we aren't past the end of the image */
rseg = ((u_int8_t *)sect) - ((u_int8_t *)tc990image);
if (rseg >= sizeof(tc990image)) {
device_printf(sc->sc_dev, "fw invalid section address, "
"section %d\n", sectnum);
return (-1);
}
/* Make sure this section doesn't go past the end */
rseg += sect->nbytes;
if (rseg >= sizeof(tc990image)) {
device_printf(sc->sc_dev, "fw truncated section %d\n",
sectnum);
return (-1);
}
bcopy(((u_int8_t *)sect) + sizeof(*sect), sc->sc_fwbuf, sect->nbytes);
dma = vtophys(sc->sc_fwbuf);
/*
* dummy up mbuf and verify section checksum
*/
m.m_type = MT_DATA;
m.m_next = m.m_nextpkt = NULL;
m.m_len = sect->nbytes;
m.m_data = sc->sc_fwbuf;
m.m_flags = 0;
csum = in_cksum(&m, sect->nbytes);
if (csum != sect->cksum) {
device_printf(sc->sc_dev, "fw section %d, bad "
"cksum (expected 0x%x got 0x%x)\n",
sectnum, sect->cksum, csum);
err = -1;
goto bail;
}
WRITE_REG(sc, TXP_H2A_1, sect->nbytes);
WRITE_REG(sc, TXP_H2A_2, sect->cksum);
WRITE_REG(sc, TXP_H2A_3, sect->addr);
WRITE_REG(sc, TXP_H2A_4, 0);
WRITE_REG(sc, TXP_H2A_5, dma & 0xffffffff);
WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_SEGMENT_AVAILABLE);
if (txp_download_fw_wait(sc)) {
device_printf(sc->sc_dev, "fw wait failed, "
"section %d\n", sectnum);
err = -1;
}
bail:
return (err);
}
static void
txp_intr(vsc)
void *vsc;
{
struct txp_softc *sc = vsc;
struct txp_hostvar *hv = sc->sc_hostvar;
u_int32_t isr;
/* mask all interrupts */
WRITE_REG(sc, TXP_IMR, TXP_INT_RESERVED | TXP_INT_SELF |
TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0 |
TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT | TXP_INT_LATCH);
isr = READ_REG(sc, TXP_ISR);
while (isr) {
WRITE_REG(sc, TXP_ISR, isr);
if ((*sc->sc_rxhir.r_roff) != (*sc->sc_rxhir.r_woff))
txp_rx_reclaim(sc, &sc->sc_rxhir);
if ((*sc->sc_rxlor.r_roff) != (*sc->sc_rxlor.r_woff))
txp_rx_reclaim(sc, &sc->sc_rxlor);
if (hv->hv_rx_buf_write_idx == hv->hv_rx_buf_read_idx)
txp_rxbuf_reclaim(sc);
if (sc->sc_txhir.r_cnt && (sc->sc_txhir.r_cons !=
TXP_OFFSET2IDX(*(sc->sc_txhir.r_off))))
txp_tx_reclaim(sc, &sc->sc_txhir);
if (sc->sc_txlor.r_cnt && (sc->sc_txlor.r_cons !=
TXP_OFFSET2IDX(*(sc->sc_txlor.r_off))))
txp_tx_reclaim(sc, &sc->sc_txlor);
isr = READ_REG(sc, TXP_ISR);
}
/* unmask all interrupts */
WRITE_REG(sc, TXP_IMR, TXP_INT_A2H_3);
txp_start(&sc->sc_arpcom.ac_if);
return;
}
static void
txp_rx_reclaim(sc, r)
struct txp_softc *sc;
struct txp_rx_ring *r;
{
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
struct txp_rx_desc *rxd;
struct mbuf *m;
struct txp_swdesc *sd = NULL;
u_int32_t roff, woff;
roff = *r->r_roff;
woff = *r->r_woff;
rxd = r->r_desc + (roff / sizeof(struct txp_rx_desc));
while (roff != woff) {
if (rxd->rx_flags & RX_FLAGS_ERROR) {
device_printf(sc->sc_dev, "error 0x%x\n",
rxd->rx_stat);
ifp->if_ierrors++;
goto next;
}
/* retrieve stashed pointer */
sd = rxd->rx_sd;
m = sd->sd_mbuf;
sd->sd_mbuf = NULL;
m->m_pkthdr.len = m->m_len = rxd->rx_len;
#ifdef __STRICT_ALIGNMENT
{
/*
* XXX Nice chip, except it won't accept "off by 2"
* buffers, so we're force to copy. Supposedly
* this will be fixed in a newer firmware rev
* and this will be temporary.
*/
struct mbuf *mnew;
MGETHDR(mnew, M_DONTWAIT, MT_DATA);
if (mnew == NULL) {
m_freem(m);
goto next;
}
if (m->m_len > (MHLEN - 2)) {
MCLGET(mnew, M_DONTWAIT);
if (!(mnew->m_flags & M_EXT)) {
m_freem(mnew);
m_freem(m);
goto next;
}
}
mnew->m_pkthdr.rcvif = ifp;
m_adj(mnew, 2);
mnew->m_pkthdr.len = mnew->m_len = m->m_len;
m_copydata(m, 0, m->m_pkthdr.len, mtod(mnew, caddr_t));
m_freem(m);
m = mnew;
}
#endif
if (rxd->rx_stat & RX_STAT_IPCKSUMBAD)
m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
else if (rxd->rx_stat & RX_STAT_IPCKSUMGOOD)
m->m_pkthdr.csum_flags |=
CSUM_IP_CHECKED|CSUM_IP_VALID;
if ((rxd->rx_stat & RX_STAT_TCPCKSUMGOOD) ||
(rxd->rx_stat & RX_STAT_UDPCKSUMGOOD)) {
m->m_pkthdr.csum_flags |=
CSUM_DATA_VALID|CSUM_PSEUDO_HDR;
m->m_pkthdr.csum_data = 0xffff;
}
if (rxd->rx_stat & RX_STAT_VLAN) {
VLAN_INPUT_TAG(ifp,
m, htons(rxd->rx_vlan >> 16), goto next);
}
(*ifp->if_input)(ifp, m);
next:
roff += sizeof(struct txp_rx_desc);
if (roff == (RX_ENTRIES * sizeof(struct txp_rx_desc))) {
roff = 0;
rxd = r->r_desc;
} else
rxd++;
woff = *r->r_woff;
}
*r->r_roff = woff;
return;
}
static void
txp_rxbuf_reclaim(sc)
struct txp_softc *sc;
{
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
struct txp_hostvar *hv = sc->sc_hostvar;
struct txp_rxbuf_desc *rbd;
struct txp_swdesc *sd;
u_int32_t i;
if (!(ifp->if_flags & IFF_RUNNING))
return;
i = sc->sc_rxbufprod;
rbd = sc->sc_rxbufs + i;
while (1) {
sd = rbd->rb_sd;
if (sd->sd_mbuf != NULL)
break;
MGETHDR(sd->sd_mbuf, M_DONTWAIT, MT_DATA);
if (sd->sd_mbuf == NULL)
goto err_sd;
MCLGET(sd->sd_mbuf, M_DONTWAIT);
if ((sd->sd_mbuf->m_flags & M_EXT) == 0)
goto err_mbuf;
sd->sd_mbuf->m_pkthdr.rcvif = ifp;
sd->sd_mbuf->m_pkthdr.len = sd->sd_mbuf->m_len = MCLBYTES;
rbd->rb_paddrlo = vtophys(mtod(sd->sd_mbuf, vm_offset_t))
& 0xffffffff;
rbd->rb_paddrhi = 0;
hv->hv_rx_buf_write_idx = TXP_IDX2OFFSET(i);
if (++i == RXBUF_ENTRIES) {
i = 0;
rbd = sc->sc_rxbufs;
} else
rbd++;
}
sc->sc_rxbufprod = i;
return;
err_mbuf:
m_freem(sd->sd_mbuf);
err_sd:
free(sd, M_DEVBUF);
}
/*
* Reclaim mbufs and entries from a transmit ring.
*/
static void
txp_tx_reclaim(sc, r)
struct txp_softc *sc;
struct txp_tx_ring *r;
{
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
u_int32_t idx = TXP_OFFSET2IDX(*(r->r_off));
u_int32_t cons = r->r_cons, cnt = r->r_cnt;
struct txp_tx_desc *txd = r->r_desc + cons;
struct txp_swdesc *sd = sc->sc_txd + cons;
struct mbuf *m;
while (cons != idx) {
if (cnt == 0)
break;
if ((txd->tx_flags & TX_FLAGS_TYPE_M) ==
TX_FLAGS_TYPE_DATA) {
m = sd->sd_mbuf;
if (m != NULL) {
m_freem(m);
txd->tx_addrlo = 0;
txd->tx_addrhi = 0;
ifp->if_opackets++;
}
}
ifp->if_flags &= ~IFF_OACTIVE;
if (++cons == TX_ENTRIES) {
txd = r->r_desc;
cons = 0;
sd = sc->sc_txd;
} else {
txd++;
sd++;
}
cnt--;
}
r->r_cons = cons;
r->r_cnt = cnt;
if (cnt == 0)
ifp->if_timer = 0;
}
static int
txp_shutdown(dev)
device_t dev;
{
struct txp_softc *sc;
sc = device_get_softc(dev);
/* mask all interrupts */
WRITE_REG(sc, TXP_IMR,
TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
TXP_INT_LATCH);
txp_command(sc, TXP_CMD_TX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 0);
txp_command(sc, TXP_CMD_RX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 0);
txp_command(sc, TXP_CMD_HALT, 0, 0, 0, NULL, NULL, NULL, 0);
return(0);
}
static int
txp_alloc_rings(sc)
struct txp_softc *sc;
{
struct txp_boot_record *boot;
struct txp_ldata *ld;
u_int32_t r;
int i;
r = 0;
ld = sc->sc_ldata;
boot = &ld->txp_boot;
/* boot record */
sc->sc_boot = boot;
/* host variables */
bzero(&ld->txp_hostvar, sizeof(struct txp_hostvar));
boot->br_hostvar_lo = vtophys(&ld->txp_hostvar);
boot->br_hostvar_hi = 0;
sc->sc_hostvar = (struct txp_hostvar *)&ld->txp_hostvar;
/* hi priority tx ring */
boot->br_txhipri_lo = vtophys(&ld->txp_txhiring);;
boot->br_txhipri_hi = 0;
boot->br_txhipri_siz = TX_ENTRIES * sizeof(struct txp_tx_desc);
sc->sc_txhir.r_reg = TXP_H2A_1;
sc->sc_txhir.r_desc = (struct txp_tx_desc *)&ld->txp_txhiring;
sc->sc_txhir.r_cons = sc->sc_txhir.r_prod = sc->sc_txhir.r_cnt = 0;
sc->sc_txhir.r_off = &sc->sc_hostvar->hv_tx_hi_desc_read_idx;
/* lo priority tx ring */
boot->br_txlopri_lo = vtophys(&ld->txp_txloring);
boot->br_txlopri_hi = 0;
boot->br_txlopri_siz = TX_ENTRIES * sizeof(struct txp_tx_desc);
sc->sc_txlor.r_reg = TXP_H2A_3;
sc->sc_txlor.r_desc = (struct txp_tx_desc *)&ld->txp_txloring;
sc->sc_txlor.r_cons = sc->sc_txlor.r_prod = sc->sc_txlor.r_cnt = 0;
sc->sc_txlor.r_off = &sc->sc_hostvar->hv_tx_lo_desc_read_idx;
/* high priority rx ring */
boot->br_rxhipri_lo = vtophys(&ld->txp_rxhiring);
boot->br_rxhipri_hi = 0;
boot->br_rxhipri_siz = RX_ENTRIES * sizeof(struct txp_rx_desc);
sc->sc_rxhir.r_desc = (struct txp_rx_desc *)&ld->txp_rxhiring;
sc->sc_rxhir.r_roff = &sc->sc_hostvar->hv_rx_hi_read_idx;
sc->sc_rxhir.r_woff = &sc->sc_hostvar->hv_rx_hi_write_idx;
/* low priority rx ring */
boot->br_rxlopri_lo = vtophys(&ld->txp_rxloring);
boot->br_rxlopri_hi = 0;
boot->br_rxlopri_siz = RX_ENTRIES * sizeof(struct txp_rx_desc);
sc->sc_rxlor.r_desc = (struct txp_rx_desc *)&ld->txp_rxloring;
sc->sc_rxlor.r_roff = &sc->sc_hostvar->hv_rx_lo_read_idx;
sc->sc_rxlor.r_woff = &sc->sc_hostvar->hv_rx_lo_write_idx;
/* command ring */
bzero(&ld->txp_cmdring, sizeof(struct txp_cmd_desc) * CMD_ENTRIES);
boot->br_cmd_lo = vtophys(&ld->txp_cmdring);
boot->br_cmd_hi = 0;
boot->br_cmd_siz = CMD_ENTRIES * sizeof(struct txp_cmd_desc);
sc->sc_cmdring.base = (struct txp_cmd_desc *)&ld->txp_cmdring;
sc->sc_cmdring.size = CMD_ENTRIES * sizeof(struct txp_cmd_desc);
sc->sc_cmdring.lastwrite = 0;
/* response ring */
bzero(&ld->txp_rspring, sizeof(struct txp_rsp_desc) * RSP_ENTRIES);
boot->br_resp_lo = vtophys(&ld->txp_rspring);
boot->br_resp_hi = 0;
boot->br_resp_siz = CMD_ENTRIES * sizeof(struct txp_rsp_desc);
sc->sc_rspring.base = (struct txp_rsp_desc *)&ld->txp_rspring;
sc->sc_rspring.size = RSP_ENTRIES * sizeof(struct txp_rsp_desc);
sc->sc_rspring.lastwrite = 0;
/* receive buffer ring */
boot->br_rxbuf_lo = vtophys(&ld->txp_rxbufs);
boot->br_rxbuf_hi = 0;
boot->br_rxbuf_siz = RXBUF_ENTRIES * sizeof(struct txp_rxbuf_desc);
sc->sc_rxbufs = (struct txp_rxbuf_desc *)&ld->txp_rxbufs;
for (i = 0; i < RXBUF_ENTRIES; i++) {
struct txp_swdesc *sd;
if (sc->sc_rxbufs[i].rb_sd != NULL)
continue;
sc->sc_rxbufs[i].rb_sd = malloc(sizeof(struct txp_swdesc),
M_DEVBUF, M_NOWAIT);
if (sc->sc_rxbufs[i].rb_sd == NULL)
return(ENOBUFS);
sd = sc->sc_rxbufs[i].rb_sd;
sd->sd_mbuf = NULL;
}
sc->sc_rxbufprod = 0;
/* zero dma */
bzero(&ld->txp_zero, sizeof(u_int32_t));
boot->br_zero_lo = vtophys(&ld->txp_zero);
boot->br_zero_hi = 0;
/* See if it's waiting for boot, and try to boot it */
for (i = 0; i < 10000; i++) {
r = READ_REG(sc, TXP_A2H_0);
if (r == STAT_WAITING_FOR_BOOT)
break;
DELAY(50);
}
if (r != STAT_WAITING_FOR_BOOT) {
device_printf(sc->sc_dev, "not waiting for boot\n");
return(ENXIO);
}
WRITE_REG(sc, TXP_H2A_2, 0);
WRITE_REG(sc, TXP_H2A_1, vtophys(sc->sc_boot));
WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_REGISTER_BOOT_RECORD);
/* See if it booted */
for (i = 0; i < 10000; i++) {
r = READ_REG(sc, TXP_A2H_0);
if (r == STAT_RUNNING)
break;
DELAY(50);
}
if (r != STAT_RUNNING) {
device_printf(sc->sc_dev, "fw not running\n");
return(ENXIO);
}
/* Clear TX and CMD ring write registers */
WRITE_REG(sc, TXP_H2A_1, TXP_BOOTCMD_NULL);
WRITE_REG(sc, TXP_H2A_2, TXP_BOOTCMD_NULL);
WRITE_REG(sc, TXP_H2A_3, TXP_BOOTCMD_NULL);
WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_NULL);
return (0);
}
static int
txp_ioctl(ifp, command, data)
struct ifnet *ifp;
u_long command;
caddr_t data;
{
struct txp_softc *sc = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *)data;
int s, error = 0;
s = splnet();
switch(command) {
case SIOCSIFFLAGS:
if (ifp->if_flags & IFF_UP) {
txp_init(sc);
} else {
if (ifp->if_flags & IFF_RUNNING)
txp_stop(sc);
}
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
/*
* Multicast list has changed; set the hardware
* filter accordingly.
*/
txp_set_filter(sc);
error = 0;
break;
case SIOCGIFMEDIA:
case SIOCSIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &sc->sc_ifmedia, command);
break;
default:
error = ether_ioctl(ifp, command, data);
break;
}
(void)splx(s);
return(error);
}
static int
txp_rxring_fill(sc)
struct txp_softc *sc;
{
int i;
struct ifnet *ifp;
struct txp_swdesc *sd;
ifp = &sc->sc_arpcom.ac_if;
for (i = 0; i < RXBUF_ENTRIES; i++) {
sd = sc->sc_rxbufs[i].rb_sd;
MGETHDR(sd->sd_mbuf, M_DONTWAIT, MT_DATA);
if (sd->sd_mbuf == NULL)
return(ENOBUFS);
MCLGET(sd->sd_mbuf, M_DONTWAIT);
if ((sd->sd_mbuf->m_flags & M_EXT) == 0) {
m_freem(sd->sd_mbuf);
return(ENOBUFS);
}
sd->sd_mbuf->m_pkthdr.len = sd->sd_mbuf->m_len = MCLBYTES;
sd->sd_mbuf->m_pkthdr.rcvif = ifp;
sc->sc_rxbufs[i].rb_paddrlo =
vtophys(mtod(sd->sd_mbuf, vm_offset_t));
sc->sc_rxbufs[i].rb_paddrhi = 0;
}
sc->sc_hostvar->hv_rx_buf_write_idx = (RXBUF_ENTRIES - 1) *
sizeof(struct txp_rxbuf_desc);
return(0);
}
static void
txp_rxring_empty(sc)
struct txp_softc *sc;
{
int i;
struct txp_swdesc *sd;
if (sc->sc_rxbufs == NULL)
return;
for (i = 0; i < RXBUF_ENTRIES; i++) {
if (&sc->sc_rxbufs[i] == NULL)
continue;
sd = sc->sc_rxbufs[i].rb_sd;
if (sd == NULL)
continue;
if (sd->sd_mbuf != NULL) {
m_freem(sd->sd_mbuf);
sd->sd_mbuf = NULL;
}
}
return;
}
static void
txp_init(xsc)
void *xsc;
{
struct txp_softc *sc;
struct ifnet *ifp;
u_int16_t p1;
u_int32_t p2;
int s;
sc = xsc;
ifp = &sc->sc_arpcom.ac_if;
if (ifp->if_flags & IFF_RUNNING)
return;
txp_stop(sc);
s = splnet();
txp_command(sc, TXP_CMD_MAX_PKT_SIZE_WRITE, TXP_MAX_PKTLEN, 0, 0,
NULL, NULL, NULL, 1);
/* Set station address. */
((u_int8_t *)&p1)[1] = sc->sc_arpcom.ac_enaddr[0];
((u_int8_t *)&p1)[0] = sc->sc_arpcom.ac_enaddr[1];
((u_int8_t *)&p2)[3] = sc->sc_arpcom.ac_enaddr[2];
((u_int8_t *)&p2)[2] = sc->sc_arpcom.ac_enaddr[3];
((u_int8_t *)&p2)[1] = sc->sc_arpcom.ac_enaddr[4];
((u_int8_t *)&p2)[0] = sc->sc_arpcom.ac_enaddr[5];
txp_command(sc, TXP_CMD_STATION_ADDRESS_WRITE, p1, p2, 0,
NULL, NULL, NULL, 1);
txp_set_filter(sc);
txp_rxring_fill(sc);
txp_command(sc, TXP_CMD_TX_ENABLE, 0, 0, 0, NULL, NULL, NULL, 1);
txp_command(sc, TXP_CMD_RX_ENABLE, 0, 0, 0, NULL, NULL, NULL, 1);
WRITE_REG(sc, TXP_IER, TXP_INT_RESERVED | TXP_INT_SELF |
TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0 |
TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT | TXP_INT_LATCH);
WRITE_REG(sc, TXP_IMR, TXP_INT_A2H_3);
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
ifp->if_timer = 0;
sc->sc_tick = timeout(txp_tick, sc, hz);
splx(s);
}
static void
txp_tick(vsc)
void *vsc;
{
struct txp_softc *sc = vsc;
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
struct txp_rsp_desc *rsp = NULL;
struct txp_ext_desc *ext;
int s;
s = splnet();
txp_rxbuf_reclaim(sc);
if (txp_command2(sc, TXP_CMD_READ_STATISTICS, 0, 0, 0, NULL, 0,
&rsp, 1))
goto out;
if (rsp->rsp_numdesc != 6)
goto out;
if (txp_command(sc, TXP_CMD_CLEAR_STATISTICS, 0, 0, 0,
NULL, NULL, NULL, 1))
goto out;
ext = (struct txp_ext_desc *)(rsp + 1);
ifp->if_ierrors += ext[3].ext_2 + ext[3].ext_3 + ext[3].ext_4 +
ext[4].ext_1 + ext[4].ext_4;
ifp->if_oerrors += ext[0].ext_1 + ext[1].ext_1 + ext[1].ext_4 +
ext[2].ext_1;
ifp->if_collisions += ext[0].ext_2 + ext[0].ext_3 + ext[1].ext_2 +
ext[1].ext_3;
ifp->if_opackets += rsp->rsp_par2;
ifp->if_ipackets += ext[2].ext_3;
out:
if (rsp != NULL)
free(rsp, M_DEVBUF);
splx(s);
sc->sc_tick = timeout(txp_tick, sc, hz);
return;
}
static void
txp_start(ifp)
struct ifnet *ifp;
{
struct txp_softc *sc = ifp->if_softc;
struct txp_tx_ring *r = &sc->sc_txhir;
struct txp_tx_desc *txd;
struct txp_frag_desc *fxd;
struct mbuf *m, *m0;
struct txp_swdesc *sd;
u_int32_t firstprod, firstcnt, prod, cnt;
struct m_tag *mtag;
if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
return;
prod = r->r_prod;
cnt = r->r_cnt;
while (1) {
IF_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
break;
firstprod = prod;
firstcnt = cnt;
sd = sc->sc_txd + prod;
sd->sd_mbuf = m;
if ((TX_ENTRIES - cnt) < 4)
goto oactive;
txd = r->r_desc + prod;
txd->tx_flags = TX_FLAGS_TYPE_DATA;
txd->tx_numdesc = 0;
txd->tx_addrlo = 0;
txd->tx_addrhi = 0;
txd->tx_totlen = 0;
txd->tx_pflags = 0;
if (++prod == TX_ENTRIES)
prod = 0;
if (++cnt >= (TX_ENTRIES - 4))
goto oactive;
mtag = VLAN_OUTPUT_TAG(ifp, m);
if (mtag != NULL) {
txd->tx_pflags = TX_PFLAGS_VLAN |
(htons(VLAN_TAG_VALUE(mtag)) << TX_PFLAGS_VLANTAG_S);
}
if (m->m_pkthdr.csum_flags & CSUM_IP)
txd->tx_pflags |= TX_PFLAGS_IPCKSUM;
#if 0
if (m->m_pkthdr.csum_flags & CSUM_TCP)
txd->tx_pflags |= TX_PFLAGS_TCPCKSUM;
if (m->m_pkthdr.csum_flags & CSUM_UDP)
txd->tx_pflags |= TX_PFLAGS_UDPCKSUM;
#endif
fxd = (struct txp_frag_desc *)(r->r_desc + prod);
for (m0 = m; m0 != NULL; m0 = m0->m_next) {
if (m0->m_len == 0)
continue;
if (++cnt >= (TX_ENTRIES - 4))
goto oactive;
txd->tx_numdesc++;
fxd->frag_flags = FRAG_FLAGS_TYPE_FRAG;
fxd->frag_rsvd1 = 0;
fxd->frag_len = m0->m_len;
fxd->frag_addrlo = vtophys(mtod(m0, vm_offset_t));
fxd->frag_addrhi = 0;
fxd->frag_rsvd2 = 0;
if (++prod == TX_ENTRIES) {
fxd = (struct txp_frag_desc *)r->r_desc;
prod = 0;
} else
fxd++;
}
ifp->if_timer = 5;
BPF_MTAP(ifp, m);
WRITE_REG(sc, r->r_reg, TXP_IDX2OFFSET(prod));
}
r->r_prod = prod;
r->r_cnt = cnt;
return;
oactive:
ifp->if_flags |= IFF_OACTIVE;
r->r_prod = firstprod;
r->r_cnt = firstcnt;
IF_PREPEND(&ifp->if_snd, m);
return;
}
/*
* Handle simple commands sent to the typhoon
*/
static int
txp_command(sc, id, in1, in2, in3, out1, out2, out3, wait)
struct txp_softc *sc;
u_int16_t id, in1, *out1;
u_int32_t in2, in3, *out2, *out3;
int wait;
{
struct txp_rsp_desc *rsp = NULL;
if (txp_command2(sc, id, in1, in2, in3, NULL, 0, &rsp, wait))
return (-1);
if (!wait)
return (0);
if (out1 != NULL)
*out1 = rsp->rsp_par1;
if (out2 != NULL)
*out2 = rsp->rsp_par2;
if (out3 != NULL)
*out3 = rsp->rsp_par3;
free(rsp, M_DEVBUF);
return (0);
}
static int
txp_command2(sc, id, in1, in2, in3, in_extp, in_extn, rspp, wait)
struct txp_softc *sc;
u_int16_t id, in1;
u_int32_t in2, in3;
struct txp_ext_desc *in_extp;
u_int8_t in_extn;
struct txp_rsp_desc **rspp;
int wait;
{
struct txp_hostvar *hv = sc->sc_hostvar;
struct txp_cmd_desc *cmd;
struct txp_ext_desc *ext;
u_int32_t idx, i;
u_int16_t seq;
if (txp_cmd_desc_numfree(sc) < (in_extn + 1)) {
device_printf(sc->sc_dev, "no free cmd descriptors\n");
return (-1);
}
idx = sc->sc_cmdring.lastwrite;
cmd = (struct txp_cmd_desc *)(((u_int8_t *)sc->sc_cmdring.base) + idx);
bzero(cmd, sizeof(*cmd));
cmd->cmd_numdesc = in_extn;
cmd->cmd_seq = seq = sc->sc_seq++;
cmd->cmd_id = id;
cmd->cmd_par1 = in1;
cmd->cmd_par2 = in2;
cmd->cmd_par3 = in3;
cmd->cmd_flags = CMD_FLAGS_TYPE_CMD |
(wait ? CMD_FLAGS_RESP : 0) | CMD_FLAGS_VALID;
idx += sizeof(struct txp_cmd_desc);
if (idx == sc->sc_cmdring.size)
idx = 0;
for (i = 0; i < in_extn; i++) {
ext = (struct txp_ext_desc *)(((u_int8_t *)sc->sc_cmdring.base) + idx);
bcopy(in_extp, ext, sizeof(struct txp_ext_desc));
in_extp++;
idx += sizeof(struct txp_cmd_desc);
if (idx == sc->sc_cmdring.size)
idx = 0;
}
sc->sc_cmdring.lastwrite = idx;
WRITE_REG(sc, TXP_H2A_2, sc->sc_cmdring.lastwrite);
if (!wait)
return (0);
for (i = 0; i < 10000; i++) {
idx = hv->hv_resp_read_idx;
if (idx != hv->hv_resp_write_idx) {
*rspp = NULL;
if (txp_response(sc, idx, id, seq, rspp))
return (-1);
if (*rspp != NULL)
break;
}
DELAY(50);
}
if (i == 1000 || (*rspp) == NULL) {
device_printf(sc->sc_dev, "0x%x command failed\n", id);
return (-1);
}
return (0);
}
static int
txp_response(sc, ridx, id, seq, rspp)
struct txp_softc *sc;
u_int32_t ridx;
u_int16_t id;
u_int16_t seq;
struct txp_rsp_desc **rspp;
{
struct txp_hostvar *hv = sc->sc_hostvar;
struct txp_rsp_desc *rsp;
while (ridx != hv->hv_resp_write_idx) {
rsp = (struct txp_rsp_desc *)(((u_int8_t *)sc->sc_rspring.base) + ridx);
if (id == rsp->rsp_id && rsp->rsp_seq == seq) {
*rspp = (struct txp_rsp_desc *)malloc(
sizeof(struct txp_rsp_desc) * (rsp->rsp_numdesc + 1),
M_DEVBUF, M_NOWAIT);
if ((*rspp) == NULL)
return (-1);
txp_rsp_fixup(sc, rsp, *rspp);
return (0);
}
if (rsp->rsp_flags & RSP_FLAGS_ERROR) {
device_printf(sc->sc_dev, "response error!\n");
txp_rsp_fixup(sc, rsp, NULL);
ridx = hv->hv_resp_read_idx;
continue;
}
switch (rsp->rsp_id) {
case TXP_CMD_CYCLE_STATISTICS:
case TXP_CMD_MEDIA_STATUS_READ:
break;
case TXP_CMD_HELLO_RESPONSE:
device_printf(sc->sc_dev, "hello\n");
break;
default:
device_printf(sc->sc_dev, "unknown id(0x%x)\n",
rsp->rsp_id);
}
txp_rsp_fixup(sc, rsp, NULL);
ridx = hv->hv_resp_read_idx;
hv->hv_resp_read_idx = ridx;
}
return (0);
}
static void
txp_rsp_fixup(sc, rsp, dst)
struct txp_softc *sc;
struct txp_rsp_desc *rsp, *dst;
{
struct txp_rsp_desc *src = rsp;
struct txp_hostvar *hv = sc->sc_hostvar;
u_int32_t i, ridx;
ridx = hv->hv_resp_read_idx;
for (i = 0; i < rsp->rsp_numdesc + 1; i++) {
if (dst != NULL)
bcopy(src, dst++, sizeof(struct txp_rsp_desc));
ridx += sizeof(struct txp_rsp_desc);
if (ridx == sc->sc_rspring.size) {
src = sc->sc_rspring.base;
ridx = 0;
} else
src++;
sc->sc_rspring.lastwrite = hv->hv_resp_read_idx = ridx;
}
hv->hv_resp_read_idx = ridx;
}
static int
txp_cmd_desc_numfree(sc)
struct txp_softc *sc;
{
struct txp_hostvar *hv = sc->sc_hostvar;
struct txp_boot_record *br = sc->sc_boot;
u_int32_t widx, ridx, nfree;
widx = sc->sc_cmdring.lastwrite;
ridx = hv->hv_cmd_read_idx;
if (widx == ridx) {
/* Ring is completely free */
nfree = br->br_cmd_siz - sizeof(struct txp_cmd_desc);
} else {
if (widx > ridx)
nfree = br->br_cmd_siz -
(widx - ridx + sizeof(struct txp_cmd_desc));
else
nfree = ridx - widx - sizeof(struct txp_cmd_desc);
}
return (nfree / sizeof(struct txp_cmd_desc));
}
static void
txp_stop(sc)
struct txp_softc *sc;
{
struct ifnet *ifp;
ifp = &sc->sc_arpcom.ac_if;
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
untimeout(txp_tick, sc, sc->sc_tick);
txp_command(sc, TXP_CMD_TX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 1);
txp_command(sc, TXP_CMD_RX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 1);
txp_rxring_empty(sc);
return;
}
static void
txp_watchdog(ifp)
struct ifnet *ifp;
{
return;
}
static int
txp_ifmedia_upd(ifp)
struct ifnet *ifp;
{
struct txp_softc *sc = ifp->if_softc;
struct ifmedia *ifm = &sc->sc_ifmedia;
u_int16_t new_xcvr;
if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
return (EINVAL);
if (IFM_SUBTYPE(ifm->ifm_media) == IFM_10_T) {
if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
new_xcvr = TXP_XCVR_10_FDX;
else
new_xcvr = TXP_XCVR_10_HDX;
} else if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_TX) {
if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
new_xcvr = TXP_XCVR_100_FDX;
else
new_xcvr = TXP_XCVR_100_HDX;
} else if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) {
new_xcvr = TXP_XCVR_AUTO;
} else
return (EINVAL);
/* nothing to do */
if (sc->sc_xcvr == new_xcvr)
return (0);
txp_command(sc, TXP_CMD_XCVR_SELECT, new_xcvr, 0, 0,
NULL, NULL, NULL, 0);
sc->sc_xcvr = new_xcvr;
return (0);
}
static void
txp_ifmedia_sts(ifp, ifmr)
struct ifnet *ifp;
struct ifmediareq *ifmr;
{
struct txp_softc *sc = ifp->if_softc;
struct ifmedia *ifm = &sc->sc_ifmedia;
u_int16_t bmsr, bmcr, anlpar;
ifmr->ifm_status = IFM_AVALID;
ifmr->ifm_active = IFM_ETHER;
if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_BMSR, 0,
&bmsr, NULL, NULL, 1))
goto bail;
if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_BMSR, 0,
&bmsr, NULL, NULL, 1))
goto bail;
if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_BMCR, 0,
&bmcr, NULL, NULL, 1))
goto bail;
if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_ANLPAR, 0,
&anlpar, NULL, NULL, 1))
goto bail;
if (bmsr & BMSR_LINK)
ifmr->ifm_status |= IFM_ACTIVE;
if (bmcr & BMCR_ISO) {
ifmr->ifm_active |= IFM_NONE;
ifmr->ifm_status = 0;
return;
}
if (bmcr & BMCR_LOOP)
ifmr->ifm_active |= IFM_LOOP;
if (bmcr & BMCR_AUTOEN) {
if ((bmsr & BMSR_ACOMP) == 0) {
ifmr->ifm_active |= IFM_NONE;
return;
}
if (anlpar & ANLPAR_T4)
ifmr->ifm_active |= IFM_100_T4;
else if (anlpar & ANLPAR_TX_FD)
ifmr->ifm_active |= IFM_100_TX|IFM_FDX;
else if (anlpar & ANLPAR_TX)
ifmr->ifm_active |= IFM_100_TX;
else if (anlpar & ANLPAR_10_FD)
ifmr->ifm_active |= IFM_10_T|IFM_FDX;
else if (anlpar & ANLPAR_10)
ifmr->ifm_active |= IFM_10_T;
else
ifmr->ifm_active |= IFM_NONE;
} else
ifmr->ifm_active = ifm->ifm_cur->ifm_media;
return;
bail:
ifmr->ifm_active |= IFM_NONE;
ifmr->ifm_status &= ~IFM_AVALID;
}
#ifdef TXP_DEBUG
static void
txp_show_descriptor(d)
void *d;
{
struct txp_cmd_desc *cmd = d;
struct txp_rsp_desc *rsp = d;
struct txp_tx_desc *txd = d;
struct txp_frag_desc *frgd = d;
switch (cmd->cmd_flags & CMD_FLAGS_TYPE_M) {
case CMD_FLAGS_TYPE_CMD:
/* command descriptor */
printf("[cmd flags 0x%x num %d id %d seq %d par1 0x%x par2 0x%x par3 0x%x]\n",
cmd->cmd_flags, cmd->cmd_numdesc, cmd->cmd_id, cmd->cmd_seq,
cmd->cmd_par1, cmd->cmd_par2, cmd->cmd_par3);
break;
case CMD_FLAGS_TYPE_RESP:
/* response descriptor */
printf("[rsp flags 0x%x num %d id %d seq %d par1 0x%x par2 0x%x par3 0x%x]\n",
rsp->rsp_flags, rsp->rsp_numdesc, rsp->rsp_id, rsp->rsp_seq,
rsp->rsp_par1, rsp->rsp_par2, rsp->rsp_par3);
break;
case CMD_FLAGS_TYPE_DATA:
/* data header (assuming tx for now) */
printf("[data flags 0x%x num %d totlen %d addr 0x%x/0x%x pflags 0x%x]",
txd->tx_flags, txd->tx_numdesc, txd->tx_totlen,
txd->tx_addrlo, txd->tx_addrhi, txd->tx_pflags);
break;
case CMD_FLAGS_TYPE_FRAG:
/* fragment descriptor */
printf("[frag flags 0x%x rsvd1 0x%x len %d addr 0x%x/0x%x rsvd2 0x%x]",
frgd->frag_flags, frgd->frag_rsvd1, frgd->frag_len,
frgd->frag_addrlo, frgd->frag_addrhi, frgd->frag_rsvd2);
break;
default:
printf("[unknown(%x) flags 0x%x num %d id %d seq %d par1 0x%x par2 0x%x par3 0x%x]\n",
cmd->cmd_flags & CMD_FLAGS_TYPE_M,
cmd->cmd_flags, cmd->cmd_numdesc, cmd->cmd_id, cmd->cmd_seq,
cmd->cmd_par1, cmd->cmd_par2, cmd->cmd_par3);
break;
}
}
#endif
static void
txp_set_filter(sc)
struct txp_softc *sc;
{
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
u_int32_t crc, carry, hashbit, hash[2];
u_int16_t filter;
u_int8_t octet;
int i, j, mcnt = 0;
struct ifmultiaddr *ifma;
char *enm;
if (ifp->if_flags & IFF_PROMISC) {
filter = TXP_RXFILT_PROMISC;
goto setit;
}
filter = TXP_RXFILT_DIRECT;
if (ifp->if_flags & IFF_BROADCAST)
filter |= TXP_RXFILT_BROADCAST;
if (ifp->if_flags & IFF_ALLMULTI)
filter |= TXP_RXFILT_ALLMULTI;
else {
hash[0] = hash[1] = 0;
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
enm = LLADDR((struct sockaddr_dl *)ifma->ifma_addr);
mcnt++;
crc = 0xffffffff;
for (i = 0; i < ETHER_ADDR_LEN; i++) {
octet = enm[i];
for (j = 0; j < 8; j++) {
carry = ((crc & 0x80000000) ? 1 : 0) ^
(octet & 1);
crc <<= 1;
octet >>= 1;
if (carry)
crc = (crc ^ TXP_POLYNOMIAL) |
carry;
}
}
hashbit = (u_int16_t)(crc & (64 - 1));
hash[hashbit / 32] |= (1 << hashbit % 32);
}
if (mcnt > 0) {
filter |= TXP_RXFILT_HASHMULTI;
txp_command(sc, TXP_CMD_MCAST_HASH_MASK_WRITE,
2, hash[0], hash[1], NULL, NULL, NULL, 0);
}
}
setit:
txp_command(sc, TXP_CMD_RX_FILTER_WRITE, filter, 0, 0,
NULL, NULL, NULL, 1);
return;
}
static void
txp_capabilities(sc)
struct txp_softc *sc;
{
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
struct txp_rsp_desc *rsp = NULL;
struct txp_ext_desc *ext;
if (txp_command2(sc, TXP_CMD_OFFLOAD_READ, 0, 0, 0, NULL, 0, &rsp, 1))
goto out;
if (rsp->rsp_numdesc != 1)
goto out;
ext = (struct txp_ext_desc *)(rsp + 1);
sc->sc_tx_capability = ext->ext_1 & OFFLOAD_MASK;
sc->sc_rx_capability = ext->ext_2 & OFFLOAD_MASK;
ifp->if_capabilities = 0;
if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_VLAN) {
sc->sc_tx_capability |= OFFLOAD_VLAN;
sc->sc_rx_capability |= OFFLOAD_VLAN;
ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING;
}
#if 0
/* not ready yet */
if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_IPSEC) {
sc->sc_tx_capability |= OFFLOAD_IPSEC;
sc->sc_rx_capability |= OFFLOAD_IPSEC;
ifp->if_capabilities |= IFCAP_IPSEC;
}
#endif
if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_IPCKSUM) {
sc->sc_tx_capability |= OFFLOAD_IPCKSUM;
sc->sc_rx_capability |= OFFLOAD_IPCKSUM;
ifp->if_capabilities |= IFCAP_HWCSUM;
ifp->if_hwassist |= CSUM_IP;
}
if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_TCPCKSUM) {
#if 0
sc->sc_tx_capability |= OFFLOAD_TCPCKSUM;
#endif
sc->sc_rx_capability |= OFFLOAD_TCPCKSUM;
ifp->if_capabilities |= IFCAP_HWCSUM;
}
if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_UDPCKSUM) {
#if 0
sc->sc_tx_capability |= OFFLOAD_UDPCKSUM;
#endif
sc->sc_rx_capability |= OFFLOAD_UDPCKSUM;
ifp->if_capabilities |= IFCAP_HWCSUM;
}
ifp->if_capenable = ifp->if_capabilities;
if (txp_command(sc, TXP_CMD_OFFLOAD_WRITE, 0,
sc->sc_tx_capability, sc->sc_rx_capability, NULL, NULL, NULL, 1))
goto out;
out:
if (rsp != NULL)
free(rsp, M_DEVBUF);
return;
}
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