NetBSD-5.0.2/sys/dev/pci/if_xge.c
/* $NetBSD: if_xge.c,v 1.9 2008/04/10 19:13:37 cegger Exp $ */
/*
* Copyright (c) 2004, SUNET, Swedish University Computer Network.
* All rights reserved.
*
* Written by Anders Magnusson for SUNET, Swedish University Computer Network.
*
* 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 for the NetBSD Project by
* SUNET, Swedish University Computer Network.
* 4. The name of SUNET may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY SUNET ``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 SUNET
* 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.
*/
/*
* Device driver for the S2io Xframe Ten Gigabit Ethernet controller.
*
* TODO (in no specific order):
* HW VLAN support.
* IPv6 HW cksum.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_xge.c,v 1.9 2008/04/10 19:13:37 cegger Exp $");
#include "bpfilter.h"
#include "rnd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/device.h>
#if NRND > 0
#include <sys/rnd.h>
#endif
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_ether.h>
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#include <sys/bus.h>
#include <sys/intr.h>
#include <machine/endian.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include <sys/proc.h>
#include <dev/pci/if_xgereg.h>
/*
* Some tunable constants, tune with care!
*/
#define RX_MODE RX_MODE_1 /* Receive mode (buffer usage, see below) */
#define NRXDESCS 1016 /* # of receive descriptors (requested) */
#define NTXDESCS 8192 /* Number of transmit descriptors */
#define NTXFRAGS 100 /* Max fragments per packet */
#define XGE_EVENT_COUNTERS /* Instrumentation */
/*
* Receive buffer modes; 1, 3 or 5 buffers.
*/
#define RX_MODE_1 1
#define RX_MODE_3 3
#define RX_MODE_5 5
/*
* Use clever macros to avoid a bunch of #ifdef's.
*/
#define XCONCAT3(x,y,z) x ## y ## z
#define CONCAT3(x,y,z) XCONCAT3(x,y,z)
#define NDESC_BUFMODE CONCAT3(NDESC_,RX_MODE,BUFMODE)
#define rxd_4k CONCAT3(rxd,RX_MODE,_4k)
#define rxdesc ___CONCAT(rxd,RX_MODE)
#define NEXTTX(x) (((x)+1) % NTXDESCS)
#define NRXFRAGS RX_MODE /* hardware imposed frags */
#define NRXPAGES ((NRXDESCS/NDESC_BUFMODE)+1)
#define NRXREAL (NRXPAGES*NDESC_BUFMODE)
#define RXMAPSZ (NRXPAGES*PAGE_SIZE)
#ifdef XGE_EVENT_COUNTERS
#define XGE_EVCNT_INCR(ev) (ev)->ev_count++
#else
#define XGE_EVCNT_INCR(ev) /* nothing */
#endif
/*
* Magics to fix a bug when the mac address can't be read correctly.
* Comes from the Linux driver.
*/
static uint64_t fix_mac[] = {
0x0060000000000000ULL, 0x0060600000000000ULL,
0x0040600000000000ULL, 0x0000600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
0x0020600000000000ULL, 0x0000600000000000ULL,
0x0040600000000000ULL, 0x0060600000000000ULL,
};
struct xge_softc {
struct device sc_dev;
struct ethercom sc_ethercom;
#define sc_if sc_ethercom.ec_if
bus_dma_tag_t sc_dmat;
bus_space_tag_t sc_st;
bus_space_handle_t sc_sh;
bus_space_tag_t sc_txt;
bus_space_handle_t sc_txh;
void *sc_ih;
struct ifmedia xena_media;
pcireg_t sc_pciregs[16];
/* Transmit structures */
struct txd *sc_txd[NTXDESCS]; /* transmit frags array */
bus_addr_t sc_txdp[NTXDESCS]; /* bus address of transmit frags */
bus_dmamap_t sc_txm[NTXDESCS]; /* transmit frags map */
struct mbuf *sc_txb[NTXDESCS]; /* transmit mbuf pointer */
int sc_nexttx, sc_lasttx;
bus_dmamap_t sc_txmap; /* transmit descriptor map */
/* Receive data */
bus_dmamap_t sc_rxmap; /* receive descriptor map */
struct rxd_4k *sc_rxd_4k[NRXPAGES]; /* receive desc pages */
bus_dmamap_t sc_rxm[NRXREAL]; /* receive buffer map */
struct mbuf *sc_rxb[NRXREAL]; /* mbufs on receive descriptors */
int sc_nextrx; /* next descriptor to check */
#ifdef XGE_EVENT_COUNTERS
struct evcnt sc_intr; /* # of interrupts */
struct evcnt sc_txintr; /* # of transmit interrupts */
struct evcnt sc_rxintr; /* # of receive interrupts */
struct evcnt sc_txqe; /* # of xmit intrs when board queue empty */
#endif
};
static int xge_match(struct device *parent, struct cfdata *cf, void *aux);
static void xge_attach(struct device *parent, struct device *self, void *aux);
static int xge_alloc_txmem(struct xge_softc *);
static int xge_alloc_rxmem(struct xge_softc *);
static void xge_start(struct ifnet *);
static void xge_stop(struct ifnet *, int);
static int xge_add_rxbuf(struct xge_softc *, int);
static void xge_mcast_filter(struct xge_softc *sc);
static int xge_setup_xgxs(struct xge_softc *sc);
static int xge_ioctl(struct ifnet *ifp, u_long cmd, void *data);
static int xge_init(struct ifnet *ifp);
static void xge_ifmedia_status(struct ifnet *, struct ifmediareq *);
static int xge_xgmii_mediachange(struct ifnet *);
static int xge_intr(void *);
/*
* Helpers to address registers.
*/
#define PIF_WCSR(csr, val) pif_wcsr(sc, csr, val)
#define PIF_RCSR(csr) pif_rcsr(sc, csr)
#define TXP_WCSR(csr, val) txp_wcsr(sc, csr, val)
#define PIF_WKEY(csr, val) pif_wkey(sc, csr, val)
static inline void
pif_wcsr(struct xge_softc *sc, bus_size_t csr, uint64_t val)
{
uint32_t lval, hval;
lval = val&0xffffffff;
hval = val>>32;
bus_space_write_4(sc->sc_st, sc->sc_sh, csr, lval);
bus_space_write_4(sc->sc_st, sc->sc_sh, csr+4, hval);
}
static inline uint64_t
pif_rcsr(struct xge_softc *sc, bus_size_t csr)
{
uint64_t val, val2;
val = bus_space_read_4(sc->sc_st, sc->sc_sh, csr);
val2 = bus_space_read_4(sc->sc_st, sc->sc_sh, csr+4);
val |= (val2 << 32);
return val;
}
static inline void
txp_wcsr(struct xge_softc *sc, bus_size_t csr, uint64_t val)
{
uint32_t lval, hval;
lval = val&0xffffffff;
hval = val>>32;
bus_space_write_4(sc->sc_txt, sc->sc_txh, csr, lval);
bus_space_write_4(sc->sc_txt, sc->sc_txh, csr+4, hval);
}
static inline void
pif_wkey(struct xge_softc *sc, bus_size_t csr, uint64_t val)
{
uint32_t lval, hval;
lval = val&0xffffffff;
hval = val>>32;
PIF_WCSR(RMAC_CFG_KEY, RMAC_KEY_VALUE);
bus_space_write_4(sc->sc_st, sc->sc_sh, csr, lval);
PIF_WCSR(RMAC_CFG_KEY, RMAC_KEY_VALUE);
bus_space_write_4(sc->sc_st, sc->sc_sh, csr+4, hval);
}
CFATTACH_DECL(xge, sizeof(struct xge_softc),
xge_match, xge_attach, NULL, NULL);
#define XNAME device_xname(&sc->sc_dev)
#define XGE_RXSYNC(desc, what) \
bus_dmamap_sync(sc->sc_dmat, sc->sc_rxmap, \
(desc/NDESC_BUFMODE) * XGE_PAGE + sizeof(struct rxdesc) * \
(desc%NDESC_BUFMODE), sizeof(struct rxdesc), what)
#define XGE_RXD(desc) &sc->sc_rxd_4k[desc/NDESC_BUFMODE]-> \
r4_rxd[desc%NDESC_BUFMODE]
/*
* Non-tunable constants.
*/
#define XGE_MAX_MTU 9600
#define XGE_IP_MAXPACKET 65535 /* same as IP_MAXPACKET */
static int
xge_match(struct device *parent, struct cfdata *cf, void *aux)
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_S2IO &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_S2IO_XFRAME)
return (1);
return (0);
}
void
xge_attach(struct device *parent, struct device *self, void *aux)
{
struct pci_attach_args *pa = aux;
struct xge_softc *sc;
struct ifnet *ifp;
pcireg_t memtype;
pci_intr_handle_t ih;
const char *intrstr = NULL;
pci_chipset_tag_t pc = pa->pa_pc;
uint8_t enaddr[ETHER_ADDR_LEN];
uint64_t val;
int i;
sc = (struct xge_softc *)self;
sc->sc_dmat = pa->pa_dmat;
/* Get BAR0 address */
memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, XGE_PIF_BAR);
if (pci_mapreg_map(pa, XGE_PIF_BAR, memtype, 0,
&sc->sc_st, &sc->sc_sh, 0, 0)) {
aprint_error("%s: unable to map PIF BAR registers\n", XNAME);
return;
}
memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, XGE_TXP_BAR);
if (pci_mapreg_map(pa, XGE_TXP_BAR, memtype, 0,
&sc->sc_txt, &sc->sc_txh, 0, 0)) {
aprint_error("%s: unable to map TXP BAR registers\n", XNAME);
return;
}
/* Save PCI config space */
for (i = 0; i < 64; i += 4)
sc->sc_pciregs[i/4] = pci_conf_read(pa->pa_pc, pa->pa_tag, i);
#if BYTE_ORDER == LITTLE_ENDIAN
val = (uint64_t)0xFFFFFFFFFFFFFFFFULL;
val &= ~(TxF_R_SE|RxF_W_SE);
PIF_WCSR(SWAPPER_CTRL, val);
PIF_WCSR(SWAPPER_CTRL, val);
#elif BYTE_ORDER == BIG_ENDIAN
/* do nothing */
#else
#error bad endianness!
#endif
if ((val = PIF_RCSR(PIF_RD_SWAPPER_Fb)) != SWAPPER_MAGIC)
return printf("%s: failed configuring endian, %llx != %llx!\n",
XNAME, (unsigned long long)val, SWAPPER_MAGIC);
/*
* The MAC addr may be all FF's, which is not good.
* Resolve it by writing some magics to GPIO_CONTROL and
* force a chip reset to read in the serial eeprom again.
*/
for (i = 0; i < sizeof(fix_mac)/sizeof(fix_mac[0]); i++) {
PIF_WCSR(GPIO_CONTROL, fix_mac[i]);
PIF_RCSR(GPIO_CONTROL);
}
/*
* Reset the chip and restore the PCI registers.
*/
PIF_WCSR(SW_RESET, 0xa5a5a50000000000ULL);
DELAY(500000);
for (i = 0; i < 64; i += 4)
pci_conf_write(pa->pa_pc, pa->pa_tag, i, sc->sc_pciregs[i/4]);
/*
* Restore the byte order registers.
*/
#if BYTE_ORDER == LITTLE_ENDIAN
val = (uint64_t)0xFFFFFFFFFFFFFFFFULL;
val &= ~(TxF_R_SE|RxF_W_SE);
PIF_WCSR(SWAPPER_CTRL, val);
PIF_WCSR(SWAPPER_CTRL, val);
#elif BYTE_ORDER == BIG_ENDIAN
/* do nothing */
#else
#error bad endianness!
#endif
if ((val = PIF_RCSR(PIF_RD_SWAPPER_Fb)) != SWAPPER_MAGIC)
return printf("%s: failed configuring endian2, %llx != %llx!\n",
XNAME, (unsigned long long)val, SWAPPER_MAGIC);
/*
* XGXS initialization.
*/
/* 29, reset */
PIF_WCSR(SW_RESET, 0);
DELAY(500000);
/* 30, configure XGXS transceiver */
xge_setup_xgxs(sc);
/* 33, program MAC address (not needed here) */
/* Get ethernet address */
PIF_WCSR(RMAC_ADDR_CMD_MEM,
RMAC_ADDR_CMD_MEM_STR|RMAC_ADDR_CMD_MEM_OFF(0));
while (PIF_RCSR(RMAC_ADDR_CMD_MEM) & RMAC_ADDR_CMD_MEM_STR)
;
val = PIF_RCSR(RMAC_ADDR_DATA0_MEM);
for (i = 0; i < ETHER_ADDR_LEN; i++)
enaddr[i] = (uint8_t)(val >> (56 - (8*i)));
/*
* Get memory for transmit descriptor lists.
*/
if (xge_alloc_txmem(sc))
return printf("%s: failed allocating txmem.\n", XNAME);
/* 9 and 10 - set FIFO number/prio */
PIF_WCSR(TX_FIFO_P0, TX_FIFO_LEN0(NTXDESCS));
PIF_WCSR(TX_FIFO_P1, 0ULL);
PIF_WCSR(TX_FIFO_P2, 0ULL);
PIF_WCSR(TX_FIFO_P3, 0ULL);
/* 11, XXX set round-robin prio? */
/* 12, enable transmit FIFO */
val = PIF_RCSR(TX_FIFO_P0);
val |= TX_FIFO_ENABLE;
PIF_WCSR(TX_FIFO_P0, val);
/* 13, disable some error checks */
PIF_WCSR(TX_PA_CFG,
TX_PA_CFG_IFR|TX_PA_CFG_ISO|TX_PA_CFG_ILC|TX_PA_CFG_ILE);
/*
* Create transmit DMA maps.
* Make them large for TSO.
*/
for (i = 0; i < NTXDESCS; i++) {
if (bus_dmamap_create(sc->sc_dmat, XGE_IP_MAXPACKET,
NTXFRAGS, MCLBYTES, 0, 0, &sc->sc_txm[i]))
return printf("%s: cannot create TX DMA maps\n", XNAME);
}
sc->sc_lasttx = NTXDESCS-1;
/*
* RxDMA initialization.
* Only use one out of 8 possible receive queues.
*/
if (xge_alloc_rxmem(sc)) /* allocate rx descriptor memory */
return printf("%s: failed allocating rxmem\n", XNAME);
/* Create receive buffer DMA maps */
for (i = 0; i < NRXREAL; i++) {
if (bus_dmamap_create(sc->sc_dmat, XGE_MAX_MTU,
NRXFRAGS, MCLBYTES, 0, 0, &sc->sc_rxm[i]))
return printf("%s: cannot create RX DMA maps\n", XNAME);
}
/* allocate mbufs to receive descriptors */
for (i = 0; i < NRXREAL; i++)
if (xge_add_rxbuf(sc, i))
panic("out of mbufs too early");
/* 14, setup receive ring priority */
PIF_WCSR(RX_QUEUE_PRIORITY, 0ULL); /* only use one ring */
/* 15, setup receive ring round-robin calendar */
PIF_WCSR(RX_W_ROUND_ROBIN_0, 0ULL); /* only use one ring */
PIF_WCSR(RX_W_ROUND_ROBIN_1, 0ULL);
PIF_WCSR(RX_W_ROUND_ROBIN_2, 0ULL);
PIF_WCSR(RX_W_ROUND_ROBIN_3, 0ULL);
PIF_WCSR(RX_W_ROUND_ROBIN_4, 0ULL);
/* 16, write receive ring start address */
PIF_WCSR(PRC_RXD0_0, (uint64_t)sc->sc_rxmap->dm_segs[0].ds_addr);
/* PRC_RXD0_[1-7] are not used */
/* 17, Setup alarm registers */
PIF_WCSR(PRC_ALARM_ACTION, 0ULL); /* Default everything to retry */
/* 18, init receive ring controller */
#if RX_MODE == RX_MODE_1
val = RING_MODE_1;
#elif RX_MODE == RX_MODE_3
val = RING_MODE_3;
#else /* RX_MODE == RX_MODE_5 */
val = RING_MODE_5;
#endif
PIF_WCSR(PRC_CTRL_0, RC_IN_SVC|val);
/* leave 1-7 disabled */
/* XXXX snoop configuration? */
/* 19, set chip memory assigned to the queue */
PIF_WCSR(RX_QUEUE_CFG, MC_QUEUE(0, 64)); /* all 64M to queue 0 */
/* 20, setup RLDRAM parameters */
/* do not touch it for now */
/* 21, setup pause frame thresholds */
/* so not touch the defaults */
/* XXX - must 0xff be written as stated in the manual? */
/* 22, configure RED */
/* we do not want to drop packets, so ignore */
/* 23, initiate RLDRAM */
val = PIF_RCSR(MC_RLDRAM_MRS);
val |= MC_QUEUE_SIZE_ENABLE|MC_RLDRAM_MRS_ENABLE;
PIF_WCSR(MC_RLDRAM_MRS, val);
DELAY(1000);
/*
* Setup interrupt policies.
*/
/* 40, Transmit interrupts */
PIF_WCSR(TTI_DATA1_MEM, TX_TIMER_VAL(0x1ff) | TX_TIMER_AC |
TX_URNG_A(5) | TX_URNG_B(20) | TX_URNG_C(48));
PIF_WCSR(TTI_DATA2_MEM,
TX_UFC_A(25) | TX_UFC_B(64) | TX_UFC_C(128) | TX_UFC_D(512));
PIF_WCSR(TTI_COMMAND_MEM, TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE);
while (PIF_RCSR(TTI_COMMAND_MEM) & TTI_CMD_MEM_STROBE)
;
/* 41, Receive interrupts */
PIF_WCSR(RTI_DATA1_MEM, RX_TIMER_VAL(0x800) | RX_TIMER_AC |
RX_URNG_A(5) | RX_URNG_B(20) | RX_URNG_C(50));
PIF_WCSR(RTI_DATA2_MEM,
RX_UFC_A(64) | RX_UFC_B(128) | RX_UFC_C(256) | RX_UFC_D(512));
PIF_WCSR(RTI_COMMAND_MEM, RTI_CMD_MEM_WE | RTI_CMD_MEM_STROBE);
while (PIF_RCSR(RTI_COMMAND_MEM) & RTI_CMD_MEM_STROBE)
;
/*
* Setup media stuff.
*/
ifmedia_init(&sc->xena_media, IFM_IMASK, xge_xgmii_mediachange,
xge_ifmedia_status);
ifmedia_add(&sc->xena_media, IFM_ETHER|IFM_10G_LR, 0, NULL);
ifmedia_set(&sc->xena_media, IFM_ETHER|IFM_10G_LR);
aprint_normal("%s: Ethernet address %s\n", XNAME,
ether_sprintf(enaddr));
ifp = &sc->sc_ethercom.ec_if;
strlcpy(ifp->if_xname, device_xname(&sc->sc_dev), IFNAMSIZ);
ifp->if_baudrate = 10000000000LL;
ifp->if_init = xge_init;
ifp->if_stop = xge_stop;
ifp->if_softc = sc;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = xge_ioctl;
ifp->if_start = xge_start;
IFQ_SET_MAXLEN(&ifp->if_snd, max(NTXDESCS - 1, IFQ_MAXLEN));
IFQ_SET_READY(&ifp->if_snd);
/*
* Offloading capabilities.
*/
sc->sc_ethercom.ec_capabilities |=
ETHERCAP_JUMBO_MTU | ETHERCAP_VLAN_MTU;
ifp->if_capabilities |=
IFCAP_CSUM_IPv4_Rx | IFCAP_CSUM_IPv4_Tx |
IFCAP_CSUM_TCPv4_Rx | IFCAP_CSUM_TCPv4_Tx |
IFCAP_CSUM_UDPv4_Rx | IFCAP_CSUM_UDPv4_Tx | IFCAP_TSOv4;
/*
* Attach the interface.
*/
if_attach(ifp);
ether_ifattach(ifp, enaddr);
/*
* Setup interrupt vector before initializing.
*/
if (pci_intr_map(pa, &ih))
return aprint_error_dev(&sc->sc_dev, "unable to map interrupt\n");
intrstr = pci_intr_string(pc, ih);
if ((sc->sc_ih =
pci_intr_establish(pc, ih, IPL_NET, xge_intr, sc)) == NULL)
return aprint_error_dev(&sc->sc_dev, "unable to establish interrupt at %s\n",
intrstr ? intrstr : "<unknown>");
aprint_normal_dev(&sc->sc_dev, "interrupting at %s\n", intrstr);
#ifdef XGE_EVENT_COUNTERS
evcnt_attach_dynamic(&sc->sc_intr, EVCNT_TYPE_MISC,
NULL, XNAME, "intr");
evcnt_attach_dynamic(&sc->sc_txintr, EVCNT_TYPE_MISC,
NULL, XNAME, "txintr");
evcnt_attach_dynamic(&sc->sc_rxintr, EVCNT_TYPE_MISC,
NULL, XNAME, "rxintr");
evcnt_attach_dynamic(&sc->sc_txqe, EVCNT_TYPE_MISC,
NULL, XNAME, "txqe");
#endif
}
void
xge_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct xge_softc *sc = ifp->if_softc;
uint64_t reg;
ifmr->ifm_status = IFM_AVALID;
ifmr->ifm_active = IFM_ETHER|IFM_10G_LR;
reg = PIF_RCSR(ADAPTER_STATUS);
if ((reg & (RMAC_REMOTE_FAULT|RMAC_LOCAL_FAULT)) == 0)
ifmr->ifm_status |= IFM_ACTIVE;
}
int
xge_xgmii_mediachange(struct ifnet *ifp)
{
return 0;
}
static void
xge_enable(struct xge_softc *sc)
{
uint64_t val;
/* 2, enable adapter */
val = PIF_RCSR(ADAPTER_CONTROL);
val |= ADAPTER_EN;
PIF_WCSR(ADAPTER_CONTROL, val);
/* 3, light the card enable led */
val = PIF_RCSR(ADAPTER_CONTROL);
val |= LED_ON;
PIF_WCSR(ADAPTER_CONTROL, val);
printf("%s: link up\n", XNAME);
}
int
xge_init(struct ifnet *ifp)
{
struct xge_softc *sc = ifp->if_softc;
uint64_t val;
if (ifp->if_flags & IFF_RUNNING)
return 0;
/* 31+32, setup MAC config */
PIF_WKEY(MAC_CFG, TMAC_EN|RMAC_EN|TMAC_APPEND_PAD|RMAC_STRIP_FCS|
RMAC_BCAST_EN|RMAC_DISCARD_PFRM|RMAC_PROM_EN);
DELAY(1000);
/* 54, ensure that the adapter is 'quiescent' */
val = PIF_RCSR(ADAPTER_STATUS);
if ((val & QUIESCENT) != QUIESCENT) {
char buf[200];
printf("%s: adapter not quiescent, aborting\n", XNAME);
val = (val & QUIESCENT) ^ QUIESCENT;
bitmask_snprintf(val, QUIESCENT_BMSK, buf, sizeof buf);
printf("%s: ADAPTER_STATUS missing bits %s\n", XNAME, buf);
return 1;
}
/* 56, enable the transmit laser */
val = PIF_RCSR(ADAPTER_CONTROL);
val |= EOI_TX_ON;
PIF_WCSR(ADAPTER_CONTROL, val);
xge_enable(sc);
/*
* Enable all interrupts
*/
PIF_WCSR(TX_TRAFFIC_MASK, 0);
PIF_WCSR(RX_TRAFFIC_MASK, 0);
PIF_WCSR(GENERAL_INT_MASK, 0);
PIF_WCSR(TXPIC_INT_MASK, 0);
PIF_WCSR(RXPIC_INT_MASK, 0);
PIF_WCSR(MAC_INT_MASK, MAC_TMAC_INT); /* only from RMAC */
PIF_WCSR(MAC_RMAC_ERR_MASK, ~RMAC_LINK_STATE_CHANGE_INT);
/* Done... */
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
return 0;
}
static void
xge_stop(struct ifnet *ifp, int disable)
{
struct xge_softc *sc = ifp->if_softc;
uint64_t val;
val = PIF_RCSR(ADAPTER_CONTROL);
val &= ~ADAPTER_EN;
PIF_WCSR(ADAPTER_CONTROL, val);
while ((PIF_RCSR(ADAPTER_STATUS) & QUIESCENT) != QUIESCENT)
;
}
int
xge_intr(void *pv)
{
struct xge_softc *sc = pv;
struct txd *txd;
struct ifnet *ifp = &sc->sc_if;
bus_dmamap_t dmp;
uint64_t val;
int i, lasttx, plen;
val = PIF_RCSR(GENERAL_INT_STATUS);
if (val == 0)
return 0; /* no interrupt here */
XGE_EVCNT_INCR(&sc->sc_intr);
PIF_WCSR(GENERAL_INT_STATUS, val);
if ((val = PIF_RCSR(MAC_RMAC_ERR_REG)) & RMAC_LINK_STATE_CHANGE_INT) {
/* Wait for quiescence */
printf("%s: link down\n", XNAME);
while ((PIF_RCSR(ADAPTER_STATUS) & QUIESCENT) != QUIESCENT)
;
PIF_WCSR(MAC_RMAC_ERR_REG, RMAC_LINK_STATE_CHANGE_INT);
val = PIF_RCSR(ADAPTER_STATUS);
if ((val & (RMAC_REMOTE_FAULT|RMAC_LOCAL_FAULT)) == 0)
xge_enable(sc); /* Only if link restored */
}
if ((val = PIF_RCSR(TX_TRAFFIC_INT))) {
XGE_EVCNT_INCR(&sc->sc_txintr);
PIF_WCSR(TX_TRAFFIC_INT, val); /* clear interrupt bits */
}
/*
* Collect sent packets.
*/
lasttx = sc->sc_lasttx;
while ((i = NEXTTX(sc->sc_lasttx)) != sc->sc_nexttx) {
txd = sc->sc_txd[i];
dmp = sc->sc_txm[i];
bus_dmamap_sync(sc->sc_dmat, dmp, 0,
dmp->dm_mapsize,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
if (txd->txd_control1 & TXD_CTL1_OWN) {
bus_dmamap_sync(sc->sc_dmat, dmp, 0,
dmp->dm_mapsize, BUS_DMASYNC_PREREAD);
break;
}
bus_dmamap_unload(sc->sc_dmat, dmp);
m_freem(sc->sc_txb[i]);
ifp->if_opackets++;
sc->sc_lasttx = i;
}
if (i == sc->sc_nexttx) {
XGE_EVCNT_INCR(&sc->sc_txqe);
}
if (sc->sc_lasttx != lasttx)
ifp->if_flags &= ~IFF_OACTIVE;
xge_start(ifp); /* Try to get more packets on the wire */
if ((val = PIF_RCSR(RX_TRAFFIC_INT))) {
XGE_EVCNT_INCR(&sc->sc_rxintr);
PIF_WCSR(RX_TRAFFIC_INT, val); /* clear interrupt bits */
}
for (;;) {
struct rxdesc *rxd;
struct mbuf *m;
XGE_RXSYNC(sc->sc_nextrx,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
rxd = XGE_RXD(sc->sc_nextrx);
if (rxd->rxd_control1 & RXD_CTL1_OWN) {
XGE_RXSYNC(sc->sc_nextrx, BUS_DMASYNC_PREREAD);
break;
}
/* got a packet */
m = sc->sc_rxb[sc->sc_nextrx];
#if RX_MODE == RX_MODE_1
plen = m->m_len = RXD_CTL2_BUF0SIZ(rxd->rxd_control2);
#elif RX_MODE == RX_MODE_3
#error Fix rxmodes in xge_intr
#elif RX_MODE == RX_MODE_5
plen = m->m_len = RXD_CTL2_BUF0SIZ(rxd->rxd_control2);
plen += m->m_next->m_len = RXD_CTL2_BUF1SIZ(rxd->rxd_control2);
plen += m->m_next->m_next->m_len =
RXD_CTL2_BUF2SIZ(rxd->rxd_control2);
plen += m->m_next->m_next->m_next->m_len =
RXD_CTL3_BUF3SIZ(rxd->rxd_control3);
plen += m->m_next->m_next->m_next->m_next->m_len =
RXD_CTL3_BUF4SIZ(rxd->rxd_control3);
#endif
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = plen;
val = rxd->rxd_control1;
if (xge_add_rxbuf(sc, sc->sc_nextrx)) {
/* Failed, recycle this mbuf */
#if RX_MODE == RX_MODE_1
rxd->rxd_control2 = RXD_MKCTL2(MCLBYTES, 0, 0);
rxd->rxd_control1 = RXD_CTL1_OWN;
#elif RX_MODE == RX_MODE_3
#elif RX_MODE == RX_MODE_5
#endif
XGE_RXSYNC(sc->sc_nextrx,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
ifp->if_ierrors++;
break;
}
ifp->if_ipackets++;
if (RXD_CTL1_PROTOS(val) & (RXD_CTL1_P_IPv4|RXD_CTL1_P_IPv6)) {
m->m_pkthdr.csum_flags |= M_CSUM_IPv4;
if (RXD_CTL1_L3CSUM(val) != 0xffff)
m->m_pkthdr.csum_flags |= M_CSUM_IPv4_BAD;
}
if (RXD_CTL1_PROTOS(val) & RXD_CTL1_P_TCP) {
m->m_pkthdr.csum_flags |= M_CSUM_TCPv4|M_CSUM_TCPv6;
if (RXD_CTL1_L4CSUM(val) != 0xffff)
m->m_pkthdr.csum_flags |= M_CSUM_TCP_UDP_BAD;
}
if (RXD_CTL1_PROTOS(val) & RXD_CTL1_P_UDP) {
m->m_pkthdr.csum_flags |= M_CSUM_UDPv4|M_CSUM_UDPv6;
if (RXD_CTL1_L4CSUM(val) != 0xffff)
m->m_pkthdr.csum_flags |= M_CSUM_TCP_UDP_BAD;
}
#if NBPFILTER > 0
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m);
#endif /* NBPFILTER > 0 */
(*ifp->if_input)(ifp, m);
if (++sc->sc_nextrx == NRXREAL)
sc->sc_nextrx = 0;
}
return 0;
}
int
xge_ioctl(struct ifnet *ifp, u_long cmd, void *data)
{
struct xge_softc *sc = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *) data;
int s, error = 0;
s = splnet();
switch (cmd) {
case SIOCSIFMTU:
if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > XGE_MAX_MTU)
error = EINVAL;
else if ((error = ifioctl_common(ifp, cmd, data)) == ENETRESET){
PIF_WCSR(RMAC_MAX_PYLD_LEN,
RMAC_PYLD_LEN(ifr->ifr_mtu));
error = 0;
}
break;
case SIOCGIFMEDIA:
case SIOCSIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &sc->xena_media, cmd);
break;
default:
if ((error = ether_ioctl(ifp, cmd, data)) != ENETRESET)
break;
error = 0;
if (cmd != SIOCADDMULTI && cmd != SIOCDELMULTI)
;
else if (ifp->if_flags & IFF_RUNNING) {
/* Change multicast list */
xge_mcast_filter(sc);
}
break;
}
splx(s);
return(error);
}
void
xge_mcast_filter(struct xge_softc *sc)
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct ethercom *ec = &sc->sc_ethercom;
struct ether_multi *enm;
struct ether_multistep step;
int i, numaddr = 1; /* first slot used for card unicast address */
uint64_t val;
ETHER_FIRST_MULTI(step, ec, enm);
while (enm != NULL) {
if (memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) {
/* Skip ranges */
goto allmulti;
}
if (numaddr == MAX_MCAST_ADDR)
goto allmulti;
for (val = 0, i = 0; i < ETHER_ADDR_LEN; i++) {
val <<= 8;
val |= enm->enm_addrlo[i];
}
PIF_WCSR(RMAC_ADDR_DATA0_MEM, val << 16);
PIF_WCSR(RMAC_ADDR_DATA1_MEM, 0xFFFFFFFFFFFFFFFFULL);
PIF_WCSR(RMAC_ADDR_CMD_MEM, RMAC_ADDR_CMD_MEM_WE|
RMAC_ADDR_CMD_MEM_STR|RMAC_ADDR_CMD_MEM_OFF(numaddr));
while (PIF_RCSR(RMAC_ADDR_CMD_MEM) & RMAC_ADDR_CMD_MEM_STR)
;
numaddr++;
ETHER_NEXT_MULTI(step, enm);
}
/* set the remaining entries to the broadcast address */
for (i = numaddr; i < MAX_MCAST_ADDR; i++) {
PIF_WCSR(RMAC_ADDR_DATA0_MEM, 0xffffffffffff0000ULL);
PIF_WCSR(RMAC_ADDR_DATA1_MEM, 0xFFFFFFFFFFFFFFFFULL);
PIF_WCSR(RMAC_ADDR_CMD_MEM, RMAC_ADDR_CMD_MEM_WE|
RMAC_ADDR_CMD_MEM_STR|RMAC_ADDR_CMD_MEM_OFF(i));
while (PIF_RCSR(RMAC_ADDR_CMD_MEM) & RMAC_ADDR_CMD_MEM_STR)
;
}
ifp->if_flags &= ~IFF_ALLMULTI;
return;
allmulti:
/* Just receive everything with the multicast bit set */
ifp->if_flags |= IFF_ALLMULTI;
PIF_WCSR(RMAC_ADDR_DATA0_MEM, 0x8000000000000000ULL);
PIF_WCSR(RMAC_ADDR_DATA1_MEM, 0xF000000000000000ULL);
PIF_WCSR(RMAC_ADDR_CMD_MEM, RMAC_ADDR_CMD_MEM_WE|
RMAC_ADDR_CMD_MEM_STR|RMAC_ADDR_CMD_MEM_OFF(1));
while (PIF_RCSR(RMAC_ADDR_CMD_MEM) & RMAC_ADDR_CMD_MEM_STR)
;
}
void
xge_start(struct ifnet *ifp)
{
struct xge_softc *sc = ifp->if_softc;
struct txd *txd = NULL; /* XXX - gcc */
bus_dmamap_t dmp;
struct mbuf *m;
uint64_t par, lcr;
int nexttx = 0, ntxd, error, i;
if ((ifp->if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING)
return;
par = lcr = 0;
for (;;) {
IFQ_POLL(&ifp->if_snd, m);
if (m == NULL)
break; /* out of packets */
if (sc->sc_nexttx == sc->sc_lasttx)
break; /* No more space */
nexttx = sc->sc_nexttx;
dmp = sc->sc_txm[nexttx];
if ((error = bus_dmamap_load_mbuf(sc->sc_dmat, dmp, m,
BUS_DMA_WRITE|BUS_DMA_NOWAIT)) != 0) {
printf("%s: bus_dmamap_load_mbuf error %d\n",
XNAME, error);
break;
}
IFQ_DEQUEUE(&ifp->if_snd, m);
bus_dmamap_sync(sc->sc_dmat, dmp, 0, dmp->dm_mapsize,
BUS_DMASYNC_PREWRITE);
txd = sc->sc_txd[nexttx];
sc->sc_txb[nexttx] = m;
for (i = 0; i < dmp->dm_nsegs; i++) {
if (dmp->dm_segs[i].ds_len == 0)
continue;
txd->txd_control1 = dmp->dm_segs[i].ds_len;
txd->txd_control2 = 0;
txd->txd_bufaddr = dmp->dm_segs[i].ds_addr;
txd++;
}
ntxd = txd - sc->sc_txd[nexttx] - 1;
txd = sc->sc_txd[nexttx];
txd->txd_control1 |= TXD_CTL1_OWN|TXD_CTL1_GCF;
txd->txd_control2 = TXD_CTL2_UTIL;
if (m->m_pkthdr.csum_flags & M_CSUM_TSOv4) {
txd->txd_control1 |= TXD_CTL1_MSS(m->m_pkthdr.segsz);
txd->txd_control1 |= TXD_CTL1_LSO;
}
if (m->m_pkthdr.csum_flags & M_CSUM_IPv4)
txd->txd_control2 |= TXD_CTL2_CIPv4;
if (m->m_pkthdr.csum_flags & M_CSUM_TCPv4)
txd->txd_control2 |= TXD_CTL2_CTCP;
if (m->m_pkthdr.csum_flags & M_CSUM_UDPv4)
txd->txd_control2 |= TXD_CTL2_CUDP;
txd[ntxd].txd_control1 |= TXD_CTL1_GCL;
bus_dmamap_sync(sc->sc_dmat, dmp, 0, dmp->dm_mapsize,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
par = sc->sc_txdp[nexttx];
lcr = TXDL_NUMTXD(ntxd) | TXDL_LGC_FIRST | TXDL_LGC_LAST;
if (m->m_pkthdr.csum_flags & M_CSUM_TSOv4)
lcr |= TXDL_SFF;
TXP_WCSR(TXDL_PAR, par);
TXP_WCSR(TXDL_LCR, lcr);
#if NBPFILTER > 0
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m);
#endif /* NBPFILTER > 0 */
sc->sc_nexttx = NEXTTX(nexttx);
}
}
/*
* Allocate DMA memory for transmit descriptor fragments.
* Only one map is used for all descriptors.
*/
int
xge_alloc_txmem(struct xge_softc *sc)
{
struct txd *txp;
bus_dma_segment_t seg;
bus_addr_t txdp;
void *kva;
int i, rseg, state;
#define TXMAPSZ (NTXDESCS*NTXFRAGS*sizeof(struct txd))
state = 0;
if (bus_dmamem_alloc(sc->sc_dmat, TXMAPSZ, PAGE_SIZE, 0,
&seg, 1, &rseg, BUS_DMA_NOWAIT))
goto err;
state++;
if (bus_dmamem_map(sc->sc_dmat, &seg, rseg, TXMAPSZ, &kva,
BUS_DMA_NOWAIT))
goto err;
state++;
if (bus_dmamap_create(sc->sc_dmat, TXMAPSZ, 1, TXMAPSZ, 0,
BUS_DMA_NOWAIT, &sc->sc_txmap))
goto err;
state++;
if (bus_dmamap_load(sc->sc_dmat, sc->sc_txmap,
kva, TXMAPSZ, NULL, BUS_DMA_NOWAIT))
goto err;
/* setup transmit array pointers */
txp = (struct txd *)kva;
txdp = seg.ds_addr;
for (txp = (struct txd *)kva, i = 0; i < NTXDESCS; i++) {
sc->sc_txd[i] = txp;
sc->sc_txdp[i] = txdp;
txp += NTXFRAGS;
txdp += (NTXFRAGS * sizeof(struct txd));
}
return 0;
err:
if (state > 2)
bus_dmamap_destroy(sc->sc_dmat, sc->sc_txmap);
if (state > 1)
bus_dmamem_unmap(sc->sc_dmat, kva, TXMAPSZ);
if (state > 0)
bus_dmamem_free(sc->sc_dmat, &seg, rseg);
return ENOBUFS;
}
/*
* Allocate DMA memory for receive descriptor,
* only one map is used for all descriptors.
* link receive descriptor pages together.
*/
int
xge_alloc_rxmem(struct xge_softc *sc)
{
struct rxd_4k *rxpp;
bus_dma_segment_t seg;
void *kva;
int i, rseg, state;
/* sanity check */
if (sizeof(struct rxd_4k) != XGE_PAGE) {
printf("bad compiler struct alignment, %d != %d\n",
(int)sizeof(struct rxd_4k), XGE_PAGE);
return EINVAL;
}
state = 0;
if (bus_dmamem_alloc(sc->sc_dmat, RXMAPSZ, PAGE_SIZE, 0,
&seg, 1, &rseg, BUS_DMA_NOWAIT))
goto err;
state++;
if (bus_dmamem_map(sc->sc_dmat, &seg, rseg, RXMAPSZ, &kva,
BUS_DMA_NOWAIT))
goto err;
state++;
if (bus_dmamap_create(sc->sc_dmat, RXMAPSZ, 1, RXMAPSZ, 0,
BUS_DMA_NOWAIT, &sc->sc_rxmap))
goto err;
state++;
if (bus_dmamap_load(sc->sc_dmat, sc->sc_rxmap,
kva, RXMAPSZ, NULL, BUS_DMA_NOWAIT))
goto err;
/* setup receive page link pointers */
for (rxpp = (struct rxd_4k *)kva, i = 0; i < NRXPAGES; i++, rxpp++) {
sc->sc_rxd_4k[i] = rxpp;
rxpp->r4_next = (uint64_t)sc->sc_rxmap->dm_segs[0].ds_addr +
(i*sizeof(struct rxd_4k)) + sizeof(struct rxd_4k);
}
sc->sc_rxd_4k[NRXPAGES-1]->r4_next =
(uint64_t)sc->sc_rxmap->dm_segs[0].ds_addr;
return 0;
err:
if (state > 2)
bus_dmamap_destroy(sc->sc_dmat, sc->sc_txmap);
if (state > 1)
bus_dmamem_unmap(sc->sc_dmat, kva, TXMAPSZ);
if (state > 0)
bus_dmamem_free(sc->sc_dmat, &seg, rseg);
return ENOBUFS;
}
/*
* Add a new mbuf chain to descriptor id.
*/
int
xge_add_rxbuf(struct xge_softc *sc, int id)
{
struct rxdesc *rxd;
struct mbuf *m[5];
int page, desc, error;
#if RX_MODE == RX_MODE_5
int i;
#endif
page = id/NDESC_BUFMODE;
desc = id%NDESC_BUFMODE;
rxd = &sc->sc_rxd_4k[page]->r4_rxd[desc];
/*
* Allocate mbufs.
* Currently five mbufs and two clusters are used,
* the hardware will put (ethernet, ip, tcp/udp) headers in
* their own buffer and the clusters are only used for data.
*/
#if RX_MODE == RX_MODE_1
MGETHDR(m[0], M_DONTWAIT, MT_DATA);
if (m[0] == NULL)
return ENOBUFS;
MCLGET(m[0], M_DONTWAIT);
if ((m[0]->m_flags & M_EXT) == 0) {
m_freem(m[0]);
return ENOBUFS;
}
m[0]->m_len = m[0]->m_pkthdr.len = m[0]->m_ext.ext_size;
#elif RX_MODE == RX_MODE_3
#error missing rxmode 3.
#elif RX_MODE == RX_MODE_5
MGETHDR(m[0], M_DONTWAIT, MT_DATA);
for (i = 1; i < 5; i++) {
MGET(m[i], M_DONTWAIT, MT_DATA);
}
if (m[3])
MCLGET(m[3], M_DONTWAIT);
if (m[4])
MCLGET(m[4], M_DONTWAIT);
if (!m[0] || !m[1] || !m[2] || !m[3] || !m[4] ||
((m[3]->m_flags & M_EXT) == 0) || ((m[4]->m_flags & M_EXT) == 0)) {
/* Out of something */
for (i = 0; i < 5; i++)
if (m[i] != NULL)
m_free(m[i]);
return ENOBUFS;
}
/* Link'em together */
m[0]->m_next = m[1];
m[1]->m_next = m[2];
m[2]->m_next = m[3];
m[3]->m_next = m[4];
#else
#error bad mode RX_MODE
#endif
if (sc->sc_rxb[id])
bus_dmamap_unload(sc->sc_dmat, sc->sc_rxm[id]);
sc->sc_rxb[id] = m[0];
error = bus_dmamap_load_mbuf(sc->sc_dmat, sc->sc_rxm[id], m[0],
BUS_DMA_READ|BUS_DMA_NOWAIT);
if (error)
return error;
bus_dmamap_sync(sc->sc_dmat, sc->sc_rxm[id], 0,
sc->sc_rxm[id]->dm_mapsize, BUS_DMASYNC_PREREAD);
#if RX_MODE == RX_MODE_1
rxd->rxd_control2 = RXD_MKCTL2(m[0]->m_len, 0, 0);
rxd->rxd_buf0 = (uint64_t)sc->sc_rxm[id]->dm_segs[0].ds_addr;
rxd->rxd_control1 = RXD_CTL1_OWN;
#elif RX_MODE == RX_MODE_3
#elif RX_MODE == RX_MODE_5
rxd->rxd_control3 = RXD_MKCTL3(0, m[3]->m_len, m[4]->m_len);
rxd->rxd_control2 = RXD_MKCTL2(m[0]->m_len, m[1]->m_len, m[2]->m_len);
rxd->rxd_buf0 = (uint64_t)sc->sc_rxm[id]->dm_segs[0].ds_addr;
rxd->rxd_buf1 = (uint64_t)sc->sc_rxm[id]->dm_segs[1].ds_addr;
rxd->rxd_buf2 = (uint64_t)sc->sc_rxm[id]->dm_segs[2].ds_addr;
rxd->rxd_buf3 = (uint64_t)sc->sc_rxm[id]->dm_segs[3].ds_addr;
rxd->rxd_buf4 = (uint64_t)sc->sc_rxm[id]->dm_segs[4].ds_addr;
rxd->rxd_control1 = RXD_CTL1_OWN;
#endif
XGE_RXSYNC(id, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
return 0;
}
/*
* These magics comes from the FreeBSD driver.
*/
int
xge_setup_xgxs(struct xge_softc *sc)
{
/* The magic numbers are described in the users guide */
/* Writing to MDIO 0x8000 (Global Config 0) */
PIF_WCSR(DTX_CONTROL, 0x8000051500000000ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80000515000000E0ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80000515D93500E4ULL); DELAY(50);
/* Writing to MDIO 0x8000 (Global Config 1) */
PIF_WCSR(DTX_CONTROL, 0x8001051500000000ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80010515000000e0ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80010515001e00e4ULL); DELAY(50);
/* Reset the Gigablaze */
PIF_WCSR(DTX_CONTROL, 0x8002051500000000ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80020515000000E0ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80020515F21000E4ULL); DELAY(50);
/* read the pole settings */
PIF_WCSR(DTX_CONTROL, 0x8000051500000000ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80000515000000e0ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80000515000000ecULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x8001051500000000ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80010515000000e0ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80010515000000ecULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x8002051500000000ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80020515000000e0ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x80020515000000ecULL); DELAY(50);
/* Workaround for TX Lane XAUI initialization error.
Read Xpak PHY register 24 for XAUI lane status */
PIF_WCSR(DTX_CONTROL, 0x0018040000000000ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x00180400000000e0ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x00180400000000ecULL); DELAY(50);
/*
* Reading the MDIO control with value 0x1804001c0F001c
* means the TxLanes were already in sync
* Reading the MDIO control with value 0x1804000c0x001c
* means some TxLanes are not in sync where x is a 4-bit
* value representing each lanes
*/
#if 0
val = PIF_RCSR(MDIO_CONTROL);
if (val != 0x1804001c0F001cULL) {
printf("%s: MDIO_CONTROL: %llx != %llx\n",
XNAME, val, 0x1804001c0F001cULL);
return 1;
}
#endif
/* Set and remove the DTE XS INTLoopBackN */
PIF_WCSR(DTX_CONTROL, 0x0000051500000000ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x00000515604000e0ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x00000515604000e4ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x00000515204000e4ULL); DELAY(50);
PIF_WCSR(DTX_CONTROL, 0x00000515204000ecULL); DELAY(50);
#if 0
/* Reading the DTX control register Should be 0x5152040001c */
val = PIF_RCSR(DTX_CONTROL);
if (val != 0x5152040001cULL) {
printf("%s: DTX_CONTROL: %llx != %llx\n",
XNAME, val, 0x5152040001cULL);
return 1;
}
#endif
PIF_WCSR(MDIO_CONTROL, 0x0018040000000000ULL); DELAY(50);
PIF_WCSR(MDIO_CONTROL, 0x00180400000000e0ULL); DELAY(50);
PIF_WCSR(MDIO_CONTROL, 0x00180400000000ecULL); DELAY(50);
#if 0
/* Reading the MIOD control should be 0x1804001c0f001c */
val = PIF_RCSR(MDIO_CONTROL);
if (val != 0x1804001c0f001cULL) {
printf("%s: MDIO_CONTROL2: %llx != %llx\n",
XNAME, val, 0x1804001c0f001cULL);
return 1;
}
#endif
return 0;
}