1
0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-25 11:37:56 +00:00
freebsd/sys/dev/usb/net/if_axge.c
2014-09-18 21:09:22 +00:00

1039 lines
25 KiB
C

/*-
* Copyright (c) 2013-2014 Kevin Lo
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* ASIX Electronics AX88178A/AX88179 USB 2.0/3.0 gigabit ethernet driver.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/condvar.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/unistd.h>
#include <net/if.h>
#include <net/if_var.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR axge_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/net/usb_ethernet.h>
#include <dev/usb/net/if_axgereg.h>
/*
* Various supported device vendors/products.
*/
static const STRUCT_USB_HOST_ID axge_devs[] = {
#define AXGE_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
AXGE_DEV(ASIX, AX88178A),
AXGE_DEV(ASIX, AX88179),
AXGE_DEV(DLINK, DUB1312),
AXGE_DEV(SITECOMEU, LN032),
#undef AXGE_DEV
};
static const struct {
uint8_t ctrl;
uint8_t timer_l;
uint8_t timer_h;
uint8_t size;
uint8_t ifg;
} __packed axge_bulk_size[] = {
{ 7, 0x4f, 0x00, 0x12, 0xff },
{ 7, 0x20, 0x03, 0x16, 0xff },
{ 7, 0xae, 0x07, 0x18, 0xff },
{ 7, 0xcc, 0x4c, 0x18, 0x08 }
};
/* prototypes */
static device_probe_t axge_probe;
static device_attach_t axge_attach;
static device_detach_t axge_detach;
static usb_callback_t axge_bulk_read_callback;
static usb_callback_t axge_bulk_write_callback;
static miibus_readreg_t axge_miibus_readreg;
static miibus_writereg_t axge_miibus_writereg;
static miibus_statchg_t axge_miibus_statchg;
static uether_fn_t axge_attach_post;
static uether_fn_t axge_init;
static uether_fn_t axge_stop;
static uether_fn_t axge_start;
static uether_fn_t axge_tick;
static uether_fn_t axge_setmulti;
static uether_fn_t axge_setpromisc;
static int axge_read_mem(struct axge_softc *, uint8_t, uint16_t,
uint16_t, void *, int);
static void axge_write_mem(struct axge_softc *, uint8_t, uint16_t,
uint16_t, void *, int);
static uint8_t axge_read_cmd_1(struct axge_softc *, uint8_t, uint16_t);
static uint16_t axge_read_cmd_2(struct axge_softc *, uint8_t, uint16_t,
uint16_t);
static void axge_write_cmd_1(struct axge_softc *, uint8_t, uint16_t,
uint8_t);
static void axge_write_cmd_2(struct axge_softc *, uint8_t, uint16_t,
uint16_t, uint16_t);
static void axge_chip_init(struct axge_softc *);
static void axge_reset(struct axge_softc *);
static int axge_attach_post_sub(struct usb_ether *);
static int axge_ifmedia_upd(struct ifnet *);
static void axge_ifmedia_sts(struct ifnet *, struct ifmediareq *);
static int axge_ioctl(struct ifnet *, u_long, caddr_t);
static void axge_rx_frame(struct usb_ether *, struct usb_page_cache *, int);
static void axge_rxeof(struct usb_ether *, struct usb_page_cache *,
unsigned int, unsigned int, uint32_t);
static void axge_csum_cfg(struct usb_ether *);
#define AXGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
#ifdef USB_DEBUG
static int axge_debug = 0;
static SYSCTL_NODE(_hw_usb, OID_AUTO, axge, CTLFLAG_RW, 0, "USB axge");
SYSCTL_INT(_hw_usb_axge, OID_AUTO, debug, CTLFLAG_RW, &axge_debug, 0,
"Debug level");
#endif
static const struct usb_config axge_config[AXGE_N_TRANSFER] = {
[AXGE_BULK_DT_WR] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.frames = 16,
.bufsize = 16 * MCLBYTES,
.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
.callback = axge_bulk_write_callback,
.timeout = 10000, /* 10 seconds */
},
[AXGE_BULK_DT_RD] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = 65536,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.callback = axge_bulk_read_callback,
.timeout = 0, /* no timeout */
},
};
static device_method_t axge_methods[] = {
/* Device interface. */
DEVMETHOD(device_probe, axge_probe),
DEVMETHOD(device_attach, axge_attach),
DEVMETHOD(device_detach, axge_detach),
/* MII interface. */
DEVMETHOD(miibus_readreg, axge_miibus_readreg),
DEVMETHOD(miibus_writereg, axge_miibus_writereg),
DEVMETHOD(miibus_statchg, axge_miibus_statchg),
DEVMETHOD_END
};
static driver_t axge_driver = {
.name = "axge",
.methods = axge_methods,
.size = sizeof(struct axge_softc),
};
static devclass_t axge_devclass;
DRIVER_MODULE(axge, uhub, axge_driver, axge_devclass, NULL, NULL);
DRIVER_MODULE(miibus, axge, miibus_driver, miibus_devclass, NULL, NULL);
MODULE_DEPEND(axge, uether, 1, 1, 1);
MODULE_DEPEND(axge, usb, 1, 1, 1);
MODULE_DEPEND(axge, ether, 1, 1, 1);
MODULE_DEPEND(axge, miibus, 1, 1, 1);
MODULE_VERSION(axge, 1);
static const struct usb_ether_methods axge_ue_methods = {
.ue_attach_post = axge_attach_post,
.ue_attach_post_sub = axge_attach_post_sub,
.ue_start = axge_start,
.ue_init = axge_init,
.ue_stop = axge_stop,
.ue_tick = axge_tick,
.ue_setmulti = axge_setmulti,
.ue_setpromisc = axge_setpromisc,
.ue_mii_upd = axge_ifmedia_upd,
.ue_mii_sts = axge_ifmedia_sts,
};
static int
axge_read_mem(struct axge_softc *sc, uint8_t cmd, uint16_t index,
uint16_t val, void *buf, int len)
{
struct usb_device_request req;
AXGE_LOCK_ASSERT(sc, MA_OWNED);
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = cmd;
USETW(req.wValue, val);
USETW(req.wIndex, index);
USETW(req.wLength, len);
return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
}
static void
axge_write_mem(struct axge_softc *sc, uint8_t cmd, uint16_t index,
uint16_t val, void *buf, int len)
{
struct usb_device_request req;
AXGE_LOCK_ASSERT(sc, MA_OWNED);
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = cmd;
USETW(req.wValue, val);
USETW(req.wIndex, index);
USETW(req.wLength, len);
if (uether_do_request(&sc->sc_ue, &req, buf, 1000)) {
/* Error ignored. */
}
}
static uint8_t
axge_read_cmd_1(struct axge_softc *sc, uint8_t cmd, uint16_t reg)
{
uint8_t val;
axge_read_mem(sc, cmd, 1, reg, &val, 1);
return (val);
}
static uint16_t
axge_read_cmd_2(struct axge_softc *sc, uint8_t cmd, uint16_t index,
uint16_t reg)
{
uint8_t val[2];
axge_read_mem(sc, cmd, index, reg, &val, 2);
return (UGETW(val));
}
static void
axge_write_cmd_1(struct axge_softc *sc, uint8_t cmd, uint16_t reg, uint8_t val)
{
axge_write_mem(sc, cmd, 1, reg, &val, 1);
}
static void
axge_write_cmd_2(struct axge_softc *sc, uint8_t cmd, uint16_t index,
uint16_t reg, uint16_t val)
{
uint8_t temp[2];
USETW(temp, val);
axge_write_mem(sc, cmd, index, reg, &temp, 2);
}
static int
axge_miibus_readreg(device_t dev, int phy, int reg)
{
struct axge_softc *sc;
uint16_t val;
int locked;
sc = device_get_softc(dev);
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
AXGE_LOCK(sc);
val = axge_read_cmd_2(sc, AXGE_ACCESS_PHY, reg, phy);
if (!locked)
AXGE_UNLOCK(sc);
return (val);
}
static int
axge_miibus_writereg(device_t dev, int phy, int reg, int val)
{
struct axge_softc *sc;
int locked;
sc = device_get_softc(dev);
if (sc->sc_phyno != phy)
return (0);
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
AXGE_LOCK(sc);
axge_write_cmd_2(sc, AXGE_ACCESS_PHY, reg, phy, val);
if (!locked)
AXGE_UNLOCK(sc);
return (0);
}
static void
axge_miibus_statchg(device_t dev)
{
struct axge_softc *sc;
struct mii_data *mii;
struct ifnet *ifp;
uint8_t link_status, tmp[5];
uint16_t val;
int locked;
sc = device_get_softc(dev);
mii = GET_MII(sc);
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
AXGE_LOCK(sc);
ifp = uether_getifp(&sc->sc_ue);
if (mii == NULL || ifp == NULL ||
(ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
goto done;
sc->sc_flags &= ~AXGE_FLAG_LINK;
if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
(IFM_ACTIVE | IFM_AVALID)) {
switch (IFM_SUBTYPE(mii->mii_media_active)) {
case IFM_10_T:
case IFM_100_TX:
case IFM_1000_T:
sc->sc_flags |= AXGE_FLAG_LINK;
break;
default:
break;
}
}
/* Lost link, do nothing. */
if ((sc->sc_flags & AXGE_FLAG_LINK) == 0)
goto done;
link_status = axge_read_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_PLSR);
val = 0;
if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) {
val |= MSR_FD;
if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0)
val |= MSR_TFC;
if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0)
val |= MSR_RFC;
}
val |= MSR_RE;
switch (IFM_SUBTYPE(mii->mii_media_active)) {
case IFM_1000_T:
val |= MSR_GM | MSR_EN_125MHZ;
if (link_status & PLSR_USB_SS)
memcpy(tmp, &axge_bulk_size[0], 5);
else if (link_status & PLSR_USB_HS)
memcpy(tmp, &axge_bulk_size[1], 5);
else
memcpy(tmp, &axge_bulk_size[3], 5);
break;
case IFM_100_TX:
val |= MSR_PS;
if (link_status & (PLSR_USB_SS | PLSR_USB_HS))
memcpy(tmp, &axge_bulk_size[2], 5);
else
memcpy(tmp, &axge_bulk_size[3], 5);
break;
case IFM_10_T:
memcpy(tmp, &axge_bulk_size[3], 5);
break;
}
/* Rx bulk configuration. */
axge_write_mem(sc, AXGE_ACCESS_MAC, 5, AXGE_RX_BULKIN_QCTRL, tmp, 5);
axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_MSR, val);
done:
if (!locked)
AXGE_UNLOCK(sc);
}
static void
axge_chip_init(struct axge_softc *sc)
{
/* Power up ethernet PHY. */
axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_EPPRCR, 0);
axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_EPPRCR, EPPRCR_IPRL);
uether_pause(&sc->sc_ue, hz / 4);
axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_CLK_SELECT,
AXGE_CLK_SELECT_ACS | AXGE_CLK_SELECT_BCS);
uether_pause(&sc->sc_ue, hz / 10);
}
static void
axge_reset(struct axge_softc *sc)
{
struct usb_config_descriptor *cd;
usb_error_t err;
cd = usbd_get_config_descriptor(sc->sc_ue.ue_udev);
err = usbd_req_set_config(sc->sc_ue.ue_udev, &sc->sc_mtx,
cd->bConfigurationValue);
if (err)
DPRINTF("reset failed (ignored)\n");
/* Wait a little while for the chip to get its brains in order. */
uether_pause(&sc->sc_ue, hz / 100);
/* Reinitialize controller to achieve full reset. */
axge_chip_init(sc);
}
static void
axge_attach_post(struct usb_ether *ue)
{
struct axge_softc *sc;
sc = uether_getsc(ue);
sc->sc_phyno = 3;
/* Initialize controller and get station address. */
axge_chip_init(sc);
axge_read_mem(sc, AXGE_ACCESS_MAC, ETHER_ADDR_LEN, AXGE_NIDR,
ue->ue_eaddr, ETHER_ADDR_LEN);
}
static int
axge_attach_post_sub(struct usb_ether *ue)
{
struct axge_softc *sc;
struct ifnet *ifp;
int error;
sc = uether_getsc(ue);
ifp = ue->ue_ifp;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_start = uether_start;
ifp->if_ioctl = axge_ioctl;
ifp->if_init = uether_init;
IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
IFQ_SET_READY(&ifp->if_snd);
ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_TXCSUM | IFCAP_RXCSUM;
ifp->if_hwassist = AXGE_CSUM_FEATURES;
ifp->if_capenable = ifp->if_capabilities;
mtx_lock(&Giant);
error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp,
uether_ifmedia_upd, ue->ue_methods->ue_mii_sts,
BMSR_DEFCAPMASK, sc->sc_phyno, MII_OFFSET_ANY, MIIF_DOPAUSE);
mtx_unlock(&Giant);
return (error);
}
/*
* Set media options.
*/
static int
axge_ifmedia_upd(struct ifnet *ifp)
{
struct axge_softc *sc;
struct mii_data *mii;
struct mii_softc *miisc;
int error;
sc = ifp->if_softc;
mii = GET_MII(sc);
AXGE_LOCK_ASSERT(sc, MA_OWNED);
LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
PHY_RESET(miisc);
error = mii_mediachg(mii);
return (error);
}
/*
* Report current media status.
*/
static void
axge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct axge_softc *sc;
struct mii_data *mii;
sc = ifp->if_softc;
mii = GET_MII(sc);
AXGE_LOCK(sc);
mii_pollstat(mii);
ifmr->ifm_active = mii->mii_media_active;
ifmr->ifm_status = mii->mii_media_status;
AXGE_UNLOCK(sc);
}
/*
* Probe for a AX88179 chip.
*/
static int
axge_probe(device_t dev)
{
struct usb_attach_arg *uaa;
uaa = device_get_ivars(dev);
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
if (uaa->info.bConfigIndex != AXGE_CONFIG_IDX)
return (ENXIO);
if (uaa->info.bIfaceIndex != AXGE_IFACE_IDX)
return (ENXIO);
return (usbd_lookup_id_by_uaa(axge_devs, sizeof(axge_devs), uaa));
}
/*
* Attach the interface. Allocate softc structures, do ifmedia
* setup and ethernet/BPF attach.
*/
static int
axge_attach(device_t dev)
{
struct usb_attach_arg *uaa;
struct axge_softc *sc;
struct usb_ether *ue;
uint8_t iface_index;
int error;
uaa = device_get_ivars(dev);
sc = device_get_softc(dev);
ue = &sc->sc_ue;
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
iface_index = AXGE_IFACE_IDX;
error = usbd_transfer_setup(uaa->device, &iface_index,
sc->sc_xfer, axge_config, AXGE_N_TRANSFER, sc, &sc->sc_mtx);
if (error) {
device_printf(dev, "allocating USB transfers failed\n");
goto detach;
}
ue->ue_sc = sc;
ue->ue_dev = dev;
ue->ue_udev = uaa->device;
ue->ue_mtx = &sc->sc_mtx;
ue->ue_methods = &axge_ue_methods;
error = uether_ifattach(ue);
if (error) {
device_printf(dev, "could not attach interface\n");
goto detach;
}
return (0); /* success */
detach:
axge_detach(dev);
return (ENXIO); /* failure */
}
static int
axge_detach(device_t dev)
{
struct axge_softc *sc;
struct usb_ether *ue;
sc = device_get_softc(dev);
ue = &sc->sc_ue;
usbd_transfer_unsetup(sc->sc_xfer, AXGE_N_TRANSFER);
uether_ifdetach(ue);
mtx_destroy(&sc->sc_mtx);
return (0);
}
static void
axge_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct axge_softc *sc;
struct usb_ether *ue;
struct usb_page_cache *pc;
int actlen;
sc = usbd_xfer_softc(xfer);
ue = &sc->sc_ue;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
pc = usbd_xfer_get_frame(xfer, 0);
axge_rx_frame(ue, pc, actlen);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
uether_rxflush(ue);
break;
default:
if (error != USB_ERR_CANCELLED) {
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static void
axge_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct axge_softc *sc;
struct ifnet *ifp;
struct usb_page_cache *pc;
struct mbuf *m;
uint32_t txhdr;
int nframes, pos;
sc = usbd_xfer_softc(xfer);
ifp = uether_getifp(&sc->sc_ue);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
if ((sc->sc_flags & AXGE_FLAG_LINK) == 0 ||
(ifp->if_drv_flags & IFF_DRV_OACTIVE) != 0) {
/*
* Don't send anything if there is no link or
* controller is busy.
*/
return;
}
for (nframes = 0; nframes < 16 &&
!IFQ_DRV_IS_EMPTY(&ifp->if_snd); nframes++) {
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
break;
usbd_xfer_set_frame_offset(xfer, nframes * MCLBYTES,
nframes);
pos = 0;
pc = usbd_xfer_get_frame(xfer, nframes);
txhdr = htole32(m->m_pkthdr.len);
usbd_copy_in(pc, 0, &txhdr, sizeof(txhdr));
txhdr = 0;
txhdr = htole32(txhdr);
usbd_copy_in(pc, 4, &txhdr, sizeof(txhdr));
pos += 8;
usbd_m_copy_in(pc, pos, m, 0, m->m_pkthdr.len);
pos += m->m_pkthdr.len;
if ((pos % usbd_xfer_max_framelen(xfer)) == 0)
txhdr |= 0x80008000;
/*
* XXX
* Update TX packet counter here. This is not
* correct way but it seems that there is no way
* to know how many packets are sent at the end
* of transfer because controller combines
* multiple writes into single one if there is
* room in TX buffer of controller.
*/
if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
/*
* if there's a BPF listener, bounce a copy
* of this frame to him:
*/
BPF_MTAP(ifp, m);
m_freem(m);
/* Set frame length. */
usbd_xfer_set_frame_len(xfer, nframes, pos);
}
if (nframes != 0) {
usbd_xfer_set_frames(xfer, nframes);
usbd_transfer_submit(xfer);
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
}
return;
/* NOTREACHED */
default:
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
if (error != USB_ERR_CANCELLED) {
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
axge_tick(struct usb_ether *ue)
{
struct axge_softc *sc;
struct mii_data *mii;
sc = uether_getsc(ue);
mii = GET_MII(sc);
AXGE_LOCK_ASSERT(sc, MA_OWNED);
mii_tick(mii);
if ((sc->sc_flags & AXGE_FLAG_LINK) == 0) {
axge_miibus_statchg(ue->ue_dev);
if ((sc->sc_flags & AXGE_FLAG_LINK) != 0)
axge_start(ue);
}
}
static void
axge_setmulti(struct usb_ether *ue)
{
struct axge_softc *sc;
struct ifnet *ifp;
struct ifmultiaddr *ifma;
uint32_t h;
uint16_t rxmode;
uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
sc = uether_getsc(ue);
ifp = uether_getifp(ue);
h = 0;
AXGE_LOCK_ASSERT(sc, MA_OWNED);
rxmode = axge_read_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR);
if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) {
rxmode |= RCR_AMALL;
axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode);
return;
}
rxmode &= ~RCR_AMALL;
if_maddr_rlock(ifp);
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
h = ether_crc32_be(LLADDR((struct sockaddr_dl *)
ifma->ifma_addr), ETHER_ADDR_LEN) >> 26;
hashtbl[h / 8] |= 1 << (h % 8);
}
if_maddr_runlock(ifp);
axge_write_mem(sc, AXGE_ACCESS_MAC, 8, AXGE_MFA, (void *)&hashtbl, 8);
axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode);
}
static void
axge_setpromisc(struct usb_ether *ue)
{
struct axge_softc *sc;
struct ifnet *ifp;
uint16_t rxmode;
sc = uether_getsc(ue);
ifp = uether_getifp(ue);
rxmode = axge_read_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR);
if (ifp->if_flags & IFF_PROMISC)
rxmode |= RCR_PRO;
else
rxmode &= ~RCR_PRO;
axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode);
axge_setmulti(ue);
}
static void
axge_start(struct usb_ether *ue)
{
struct axge_softc *sc;
sc = uether_getsc(ue);
/*
* Start the USB transfers, if not already started.
*/
usbd_transfer_start(sc->sc_xfer[AXGE_BULK_DT_RD]);
usbd_transfer_start(sc->sc_xfer[AXGE_BULK_DT_WR]);
}
static void
axge_init(struct usb_ether *ue)
{
struct axge_softc *sc;
struct ifnet *ifp;
uint16_t rxmode;
sc = uether_getsc(ue);
ifp = uether_getifp(ue);
AXGE_LOCK_ASSERT(sc, MA_OWNED);
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
return;
/*
* Cancel pending I/O and free all RX/TX buffers.
*/
axge_stop(ue);
axge_reset(sc);
/* Set MAC address. */
axge_write_mem(sc, AXGE_ACCESS_MAC, ETHER_ADDR_LEN, AXGE_NIDR,
IF_LLADDR(ifp), ETHER_ADDR_LEN);
axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_PWLLR, 0x34);
axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_PWLHR, 0x52);
/* Configure TX/RX checksum offloading. */
axge_csum_cfg(ue);
/* Configure RX settings. */
rxmode = (RCR_AM | RCR_SO | RCR_DROP_CRCE);
if ((ifp->if_capenable & IFCAP_RXCSUM) != 0)
rxmode |= RCR_IPE;
/* If we want promiscuous mode, set the allframes bit. */
if (ifp->if_flags & IFF_PROMISC)
rxmode |= RCR_PRO;
if (ifp->if_flags & IFF_BROADCAST)
rxmode |= RCR_AB;
axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode);
axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_MMSR,
MMSR_PME_TYPE | MMSR_PME_POL | MMSR_RWMP);
/* Load the multicast filter. */
axge_setmulti(ue);
usbd_xfer_set_stall(sc->sc_xfer[AXGE_BULK_DT_WR]);
ifp->if_drv_flags |= IFF_DRV_RUNNING;
/* Switch to selected media. */
axge_ifmedia_upd(ifp);
}
static void
axge_stop(struct usb_ether *ue)
{
struct axge_softc *sc;
struct ifnet *ifp;
sc = uether_getsc(ue);
ifp = uether_getifp(ue);
AXGE_LOCK_ASSERT(sc, MA_OWNED);
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
sc->sc_flags &= ~AXGE_FLAG_LINK;
/*
* Stop all the transfers, if not already stopped:
*/
usbd_transfer_stop(sc->sc_xfer[AXGE_BULK_DT_WR]);
usbd_transfer_stop(sc->sc_xfer[AXGE_BULK_DT_RD]);
}
static int
axge_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct usb_ether *ue;
struct axge_softc *sc;
struct ifreq *ifr;
int error, mask, reinit;
ue = ifp->if_softc;
sc = uether_getsc(ue);
ifr = (struct ifreq *)data;
error = 0;
reinit = 0;
if (cmd == SIOCSIFCAP) {
AXGE_LOCK(sc);
mask = ifr->ifr_reqcap ^ ifp->if_capenable;
if ((mask & IFCAP_TXCSUM) != 0 &&
(ifp->if_capabilities & IFCAP_TXCSUM) != 0) {
ifp->if_capenable ^= IFCAP_TXCSUM;
if ((ifp->if_capenable & IFCAP_TXCSUM) != 0)
ifp->if_hwassist |= AXGE_CSUM_FEATURES;
else
ifp->if_hwassist &= ~AXGE_CSUM_FEATURES;
reinit++;
}
if ((mask & IFCAP_RXCSUM) != 0 &&
(ifp->if_capabilities & IFCAP_RXCSUM) != 0) {
ifp->if_capenable ^= IFCAP_RXCSUM;
reinit++;
}
if (reinit > 0 && ifp->if_drv_flags & IFF_DRV_RUNNING)
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
else
reinit = 0;
AXGE_UNLOCK(sc);
if (reinit > 0)
uether_init(ue);
} else
error = uether_ioctl(ifp, cmd, data);
return (error);
}
static void
axge_rx_frame(struct usb_ether *ue, struct usb_page_cache *pc, int actlen)
{
uint32_t pos;
uint32_t pkt_cnt;
uint32_t rxhdr;
uint32_t pkt_hdr;
uint32_t hdr_off;
uint32_t pktlen;
/* verify we have enough data */
if (actlen < (int)sizeof(rxhdr))
return;
pos = 0;
usbd_copy_out(pc, actlen - sizeof(rxhdr), &rxhdr, sizeof(rxhdr));
rxhdr = le32toh(rxhdr);
pkt_cnt = (uint16_t)rxhdr;
hdr_off = (uint16_t)(rxhdr >> 16);
while (pkt_cnt--) {
/* verify the header offset */
if ((int)(hdr_off + sizeof(pkt_hdr)) > actlen) {
DPRINTF("End of packet headers\n");
break;
}
if ((int)pos >= actlen) {
DPRINTF("Data position reached end\n");
break;
}
usbd_copy_out(pc, hdr_off, &pkt_hdr, sizeof(pkt_hdr));
pkt_hdr = le32toh(pkt_hdr);
pktlen = (pkt_hdr >> 16) & 0x1fff;
if (pkt_hdr & (AXGE_RXHDR_CRC_ERR | AXGE_RXHDR_DROP_ERR)) {
DPRINTF("Dropped a packet\n");
if_inc_counter(ue->ue_ifp, IFCOUNTER_IERRORS, 1);
}
if (pktlen >= 6 && (int)(pos + pktlen) <= actlen) {
axge_rxeof(ue, pc, pos + 2, pktlen - 6, pkt_hdr);
} else {
DPRINTF("Invalid packet pos=%d len=%d\n",
(int)pos, (int)pktlen);
}
pos += (pktlen + 7) & ~7;
hdr_off += sizeof(pkt_hdr);
}
}
static void
axge_rxeof(struct usb_ether *ue, struct usb_page_cache *pc,
unsigned int offset, unsigned int len, uint32_t pkt_hdr)
{
struct ifnet *ifp;
struct mbuf *m;
ifp = ue->ue_ifp;
if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN) {
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
return;
}
m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
if (m == NULL) {
if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
return;
}
m->m_pkthdr.rcvif = ifp;
m->m_len = m->m_pkthdr.len = len + ETHER_ALIGN;
m_adj(m, ETHER_ALIGN);
usbd_copy_out(pc, offset, mtod(m, uint8_t *), len);
if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
if ((pkt_hdr & (AXGE_RXHDR_L4CSUM_ERR | AXGE_RXHDR_L3CSUM_ERR)) == 0) {
if ((pkt_hdr & AXGE_RXHDR_L4_TYPE_MASK) ==
AXGE_RXHDR_L4_TYPE_TCP ||
(pkt_hdr & AXGE_RXHDR_L4_TYPE_MASK) ==
AXGE_RXHDR_L4_TYPE_UDP) {
m->m_pkthdr.csum_flags |= CSUM_DATA_VALID |
CSUM_PSEUDO_HDR | CSUM_IP_CHECKED | CSUM_IP_VALID;
m->m_pkthdr.csum_data = 0xffff;
}
}
_IF_ENQUEUE(&ue->ue_rxq, m);
}
static void
axge_csum_cfg(struct usb_ether *ue)
{
struct axge_softc *sc;
struct ifnet *ifp;
uint8_t csum;
sc = uether_getsc(ue);
AXGE_LOCK_ASSERT(sc, MA_OWNED);
ifp = uether_getifp(ue);
csum = 0;
if ((ifp->if_capenable & IFCAP_TXCSUM) != 0)
csum |= CTCR_IP | CTCR_TCP | CTCR_UDP;
axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_CTCR, csum);
csum = 0;
if ((ifp->if_capenable & IFCAP_RXCSUM) != 0)
csum |= CRCR_IP | CRCR_TCP | CRCR_UDP;
axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_CRCR, csum);
}