File: [local] / sys / dev / pci / if_bge.c (download)
Revision 1.1, Tue Mar 4 16:13:03 2008 UTC (16 years, 1 month ago) by nbrk
Branch point for: MAIN
Initial revision
|
/* $OpenBSD: if_bge.c,v 1.213 2007/06/21 01:11:50 dlg Exp $ */
/*
* Copyright (c) 2001 Wind River Systems
* Copyright (c) 1997, 1998, 1999, 2001
* Bill Paul <wpaul@windriver.com>. 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 Bill Paul.
* 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 Bill Paul 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 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.
*
* $FreeBSD: if_bge.c,v 1.25 2002/11/14 23:54:49 sam Exp $
*/
/*
* Broadcom BCM570x family gigabit ethernet driver for FreeBSD.
*
* Written by Bill Paul <wpaul@windriver.com>
* Senior Engineer, Wind River Systems
*/
/*
* The Broadcom BCM5700 is based on technology originally developed by
* Alteon Networks as part of the Tigon I and Tigon II gigabit ethernet
* MAC chips. The BCM5700, sometimes refered to as the Tigon III, has
* two on-board MIPS R4000 CPUs and can have as much as 16MB of external
* SSRAM. The BCM5700 supports TCP, UDP and IP checksum offload, Jumbo
* frames, highly configurable RX filtering, and 16 RX and TX queues
* (which, along with RX filter rules, can be used for QOS applications).
* Other features, such as TCP segmentation, may be available as part
* of value-added firmware updates. Unlike the Tigon I and Tigon II,
* firmware images can be stored in hardware and need not be compiled
* into the driver.
*
* The BCM5700 supports the PCI v2.2 and PCI-X v1.0 standards, and will
* function in a 32-bit/64-bit 33/66MHz bus, or a 64-bit/133MHz bus.
*
* The BCM5701 is a single-chip solution incorporating both the BCM5700
* MAC and a BCM5401 10/100/1000 PHY. Unlike the BCM5700, the BCM5701
* does not support external SSRAM.
*
* Broadcom also produces a variation of the BCM5700 under the "Altima"
* brand name, which is functionally similar but lacks PCI-X support.
*
* Without external SSRAM, you can only have at most 4 TX rings,
* and the use of the mini RX ring is disabled. This seems to imply
* that these features are simply not available on the BCM5701. As a
* result, this driver does not implement any support for the mini RX
* ring.
*/
#include "bpfilter.h"
#include "vlan.h"
#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/device.h>
#include <sys/timeout.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#endif
#if NVLAN > 0
#include <net/if_types.h>
#include <net/if_vlan_var.h>
#endif
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#ifdef __sparc64__
#include <dev/ofw/openfirm.h>
#endif
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/mii/miidevs.h>
#include <dev/mii/brgphyreg.h>
#include <dev/pci/if_bgereg.h>
const struct bge_revision * bge_lookup_rev(u_int32_t);
int bge_probe(struct device *, void *, void *);
void bge_attach(struct device *, struct device *, void *);
struct cfattach bge_ca = {
sizeof(struct bge_softc), bge_probe, bge_attach
};
struct cfdriver bge_cd = {
0, "bge", DV_IFNET
};
void bge_txeof(struct bge_softc *);
void bge_rxeof(struct bge_softc *);
void bge_tick(void *);
void bge_stats_update(struct bge_softc *);
void bge_stats_update_regs(struct bge_softc *);
int bge_encap(struct bge_softc *, struct mbuf *, u_int32_t *);
int bge_compact_dma_runt(struct mbuf *pkt);
int bge_intr(void *);
void bge_start(struct ifnet *);
int bge_ioctl(struct ifnet *, u_long, caddr_t);
void bge_init(void *);
void bge_power(int, void *);
void bge_stop_block(struct bge_softc *, bus_size_t, u_int32_t);
void bge_stop(struct bge_softc *);
void bge_watchdog(struct ifnet *);
void bge_shutdown(void *);
int bge_ifmedia_upd(struct ifnet *);
void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *);
u_int8_t bge_eeprom_getbyte(struct bge_softc *, int, u_int8_t *);
int bge_read_eeprom(struct bge_softc *, caddr_t, int, int);
void bge_iff(struct bge_softc *);
int bge_alloc_jumbo_mem(struct bge_softc *);
void *bge_jalloc(struct bge_softc *);
void bge_jfree(caddr_t, u_int, void *);
int bge_newbuf_std(struct bge_softc *, int, struct mbuf *, bus_dmamap_t);
int bge_newbuf_jumbo(struct bge_softc *, int, struct mbuf *);
int bge_init_rx_ring_std(struct bge_softc *);
void bge_free_rx_ring_std(struct bge_softc *);
int bge_init_rx_ring_jumbo(struct bge_softc *);
void bge_free_rx_ring_jumbo(struct bge_softc *);
void bge_free_tx_ring(struct bge_softc *);
int bge_init_tx_ring(struct bge_softc *);
void bge_chipinit(struct bge_softc *);
int bge_blockinit(struct bge_softc *);
u_int32_t bge_readmem_ind(struct bge_softc *, int);
void bge_writemem_ind(struct bge_softc *, int, int);
void bge_writereg_ind(struct bge_softc *, int, int);
int bge_miibus_readreg(struct device *, int, int);
void bge_miibus_writereg(struct device *, int, int, int);
void bge_miibus_statchg(struct device *);
void bge_reset(struct bge_softc *);
void bge_link_upd(struct bge_softc *);
#ifdef BGE_DEBUG
#define DPRINTF(x) do { if (bgedebug) printf x; } while (0)
#define DPRINTFN(n,x) do { if (bgedebug >= (n)) printf x; } while (0)
int bgedebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
/*
* Various supported device vendors/types and their names. Note: the
* spec seems to indicate that the hardware still has Alteon's vendor
* ID burned into it, though it will always be overridden by the vendor
* ID in the EEPROM. Just to be safe, we cover all possibilities.
*/
const struct pci_matchid bge_devices[] = {
{ PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5700 },
{ PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5701 },
{ PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1000 },
{ PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1001 },
{ PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC9100 },
{ PCI_VENDOR_APPLE, PCI_PRODUCT_APPLE_BCM5701 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5700 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5701 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702_ALT },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702X },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703_ALT },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703X },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704C },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704S },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704S_ALT },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705F },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705K },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705M },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705M_ALT },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5714 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5714S },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5715 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5715S },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5720 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5721 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5722 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5750 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5750M },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751F },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751M },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5752 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5752M },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753F },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753M },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5754 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5754M },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5755 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5755M },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5756 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5780 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5780S },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5781 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5782 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5786 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787F },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787M },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5788 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5789 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5901 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5901A2 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5903M },
#if 0
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5906 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5906M },
#endif
{ PCI_VENDOR_SCHNEIDERKOCH, PCI_PRODUCT_SCHNEIDERKOCH_SK9D21 },
{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C996 },
};
#define BGE_IS_5705_OR_BEYOND(sc) \
(BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5705 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5750 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5714_A0 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5780 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5714 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5752 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5755 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5787 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5906)
#define BGE_IS_575X_PLUS(sc) \
(BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5750 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5714_A0 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5780 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5714 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5752 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5755 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5787 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5906)
#define BGE_IS_5714_FAMILY(sc) \
(BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5714_A0 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5780 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5714)
#define BGE_IS_JUMBO_CAPABLE(sc) \
(BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5700 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5701 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5703 || \
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5704)
static const struct bge_revision {
u_int32_t br_chipid;
const char *br_name;
} bge_revisions[] = {
{ BGE_CHIPID_BCM5700_A0, "BCM5700 A0" },
{ BGE_CHIPID_BCM5700_A1, "BCM5700 A1" },
{ BGE_CHIPID_BCM5700_B0, "BCM5700 B0" },
{ BGE_CHIPID_BCM5700_B1, "BCM5700 B1" },
{ BGE_CHIPID_BCM5700_B2, "BCM5700 B2" },
{ BGE_CHIPID_BCM5700_B3, "BCM5700 B3" },
{ BGE_CHIPID_BCM5700_ALTIMA, "BCM5700 Altima" },
{ BGE_CHIPID_BCM5700_C0, "BCM5700 C0" },
{ BGE_CHIPID_BCM5701_A0, "BCM5701 A0" },
{ BGE_CHIPID_BCM5701_B0, "BCM5701 B0" },
{ BGE_CHIPID_BCM5701_B2, "BCM5701 B2" },
{ BGE_CHIPID_BCM5701_B5, "BCM5701 B5" },
{ BGE_CHIPID_BCM5703_A0, "BCM5703 A0" },
{ BGE_CHIPID_BCM5703_A1, "BCM5703 A1" },
{ BGE_CHIPID_BCM5703_A2, "BCM5703 A2" },
{ BGE_CHIPID_BCM5703_A3, "BCM5703 A3" },
{ BGE_CHIPID_BCM5703_B0, "BCM5703 B0" },
{ BGE_CHIPID_BCM5704_A0, "BCM5704 A0" },
{ BGE_CHIPID_BCM5704_A1, "BCM5704 A1" },
{ BGE_CHIPID_BCM5704_A2, "BCM5704 A2" },
{ BGE_CHIPID_BCM5704_A3, "BCM5704 A3" },
{ BGE_CHIPID_BCM5704_B0, "BCM5704 B0" },
{ BGE_CHIPID_BCM5705_A0, "BCM5705 A0" },
{ BGE_CHIPID_BCM5705_A1, "BCM5705 A1" },
{ BGE_CHIPID_BCM5705_A2, "BCM5705 A2" },
{ BGE_CHIPID_BCM5705_A3, "BCM5705 A3" },
{ BGE_CHIPID_BCM5750_A0, "BCM5750 A0" },
{ BGE_CHIPID_BCM5750_A1, "BCM5750 A1" },
{ BGE_CHIPID_BCM5750_A3, "BCM5750 A3" },
{ BGE_CHIPID_BCM5750_B0, "BCM5750 B0" },
{ BGE_CHIPID_BCM5750_B1, "BCM5750 B1" },
{ BGE_CHIPID_BCM5750_C0, "BCM5750 C0" },
{ BGE_CHIPID_BCM5750_C1, "BCM5750 C1" },
{ BGE_CHIPID_BCM5750_C2, "BCM5750 C2" },
{ BGE_CHIPID_BCM5714_A0, "BCM5714 A0" },
{ BGE_CHIPID_BCM5752_A0, "BCM5752 A0" },
{ BGE_CHIPID_BCM5752_A1, "BCM5752 A1" },
{ BGE_CHIPID_BCM5752_A2, "BCM5752 A2" },
{ BGE_CHIPID_BCM5714_B0, "BCM5714 B0" },
{ BGE_CHIPID_BCM5714_B3, "BCM5714 B3" },
{ BGE_CHIPID_BCM5715_A0, "BCM5715 A0" },
{ BGE_CHIPID_BCM5715_A1, "BCM5715 A1" },
{ BGE_CHIPID_BCM5715_A3, "BCM5715 A3" },
{ BGE_CHIPID_BCM5755_A0, "BCM5755 A0" },
{ BGE_CHIPID_BCM5755_A1, "BCM5755 A1" },
{ BGE_CHIPID_BCM5755_A2, "BCM5755 A2" },
/* the 5754 and 5787 share the same ASIC ID */
{ BGE_CHIPID_BCM5787_A0, "BCM5754/5787 A0" },
{ BGE_CHIPID_BCM5787_A1, "BCM5754/5787 A1" },
{ BGE_CHIPID_BCM5787_A2, "BCM5754/5787 A2" },
{ BGE_CHIPID_BCM5906_A1, "BCM5906 A1" },
{ 0, NULL }
};
/*
* Some defaults for major revisions, so that newer steppings
* that we don't know about have a shot at working.
*/
static const struct bge_revision bge_majorrevs[] = {
{ BGE_ASICREV_BCM5700, "unknown BCM5700" },
{ BGE_ASICREV_BCM5701, "unknown BCM5701" },
/* 5702 and 5703 share the same ASIC ID */
{ BGE_ASICREV_BCM5703, "unknown BCM5703" },
{ BGE_ASICREV_BCM5704, "unknown BCM5704" },
{ BGE_ASICREV_BCM5705, "unknown BCM5705" },
{ BGE_ASICREV_BCM5750, "unknown BCM5750" },
{ BGE_ASICREV_BCM5714_A0, "unknown BCM5714" },
{ BGE_ASICREV_BCM5752, "unknown BCM5752" },
{ BGE_ASICREV_BCM5780, "unknown BCM5780" },
{ BGE_ASICREV_BCM5714, "unknown BCM5714" },
{ BGE_ASICREV_BCM5755, "unknown BCM5755" },
/* 5754 and 5787 share the same ASIC ID */
{ BGE_ASICREV_BCM5787, "unknown BCM5754/5787" },
{ BGE_ASICREV_BCM5906, "unknown BCM5906" },
{ 0, NULL }
};
u_int32_t
bge_readmem_ind(struct bge_softc *sc, int off)
{
struct pci_attach_args *pa = &(sc->bge_pa);
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_BASEADDR, off);
return (pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_DATA));
}
void
bge_writemem_ind(struct bge_softc *sc, int off, int val)
{
struct pci_attach_args *pa = &(sc->bge_pa);
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_BASEADDR, off);
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_DATA, val);
}
void
bge_writereg_ind(struct bge_softc *sc, int off, int val)
{
struct pci_attach_args *pa = &(sc->bge_pa);
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_BASEADDR, off);
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_DATA, val);
}
/*
* Read a byte of data stored in the EEPROM at address 'addr.' The
* BCM570x supports both the traditional bitbang interface and an
* auto access interface for reading the EEPROM. We use the auto
* access method.
*/
u_int8_t
bge_eeprom_getbyte(struct bge_softc *sc, int addr, u_int8_t *dest)
{
int i;
u_int32_t byte = 0;
/*
* Enable use of auto EEPROM access so we can avoid
* having to use the bitbang method.
*/
BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM);
/* Reset the EEPROM, load the clock period. */
CSR_WRITE_4(sc, BGE_EE_ADDR,
BGE_EEADDR_RESET|BGE_EEHALFCLK(BGE_HALFCLK_384SCL));
DELAY(20);
/* Issue the read EEPROM command. */
CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr);
/* Wait for completion */
for(i = 0; i < BGE_TIMEOUT * 10; i++) {
DELAY(10);
if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE)
break;
}
if (i == BGE_TIMEOUT * 10) {
printf("%s: eeprom read timed out\n", sc->bge_dev.dv_xname);
return (1);
}
/* Get result. */
byte = CSR_READ_4(sc, BGE_EE_DATA);
*dest = (byte >> ((addr % 4) * 8)) & 0xFF;
return (0);
}
/*
* Read a sequence of bytes from the EEPROM.
*/
int
bge_read_eeprom(struct bge_softc *sc, caddr_t dest, int off, int cnt)
{
int err = 0, i;
u_int8_t byte = 0;
for (i = 0; i < cnt; i++) {
err = bge_eeprom_getbyte(sc, off + i, &byte);
if (err)
break;
*(dest + i) = byte;
}
return (err ? 1 : 0);
}
int
bge_miibus_readreg(struct device *dev, int phy, int reg)
{
struct bge_softc *sc = (struct bge_softc *)dev;
u_int32_t val, autopoll;
int i;
/*
* Broadcom's own driver always assumes the internal
* PHY is at GMII address 1. On some chips, the PHY responds
* to accesses at all addresses, which could cause us to
* bogusly attach the PHY 32 times at probe type. Always
* restricting the lookup to address 1 is simpler than
* trying to figure out which chips revisions should be
* special-cased.
*/
if (phy != 1)
return (0);
/* Reading with autopolling on may trigger PCI errors */
autopoll = CSR_READ_4(sc, BGE_MI_MODE);
if (autopoll & BGE_MIMODE_AUTOPOLL) {
BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
DELAY(40);
}
CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ|BGE_MICOMM_BUSY|
BGE_MIPHY(phy)|BGE_MIREG(reg));
for (i = 0; i < 200; i++) {
delay(1);
val = CSR_READ_4(sc, BGE_MI_COMM);
if (!(val & BGE_MICOMM_BUSY))
break;
delay(10);
}
if (i == 200) {
printf("%s: PHY read timed out\n", sc->bge_dev.dv_xname);
val = 0;
goto done;
}
val = CSR_READ_4(sc, BGE_MI_COMM);
done:
if (autopoll & BGE_MIMODE_AUTOPOLL) {
BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
DELAY(40);
}
if (val & BGE_MICOMM_READFAIL)
return (0);
return (val & 0xFFFF);
}
void
bge_miibus_writereg(struct device *dev, int phy, int reg, int val)
{
struct bge_softc *sc = (struct bge_softc *)dev;
u_int32_t autopoll;
int i;
/* Reading with autopolling on may trigger PCI errors */
autopoll = CSR_READ_4(sc, BGE_MI_MODE);
if (autopoll & BGE_MIMODE_AUTOPOLL) {
DELAY(40);
BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
DELAY(10); /* 40 usec is supposed to be adequate */
}
CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE|BGE_MICOMM_BUSY|
BGE_MIPHY(phy)|BGE_MIREG(reg)|val);
for (i = 0; i < 200; i++) {
delay(1);
if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY))
break;
delay(10);
}
if (autopoll & BGE_MIMODE_AUTOPOLL) {
BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
DELAY(40);
}
if (i == 200) {
printf("%s: PHY read timed out\n", sc->bge_dev.dv_xname);
}
}
void
bge_miibus_statchg(struct device *dev)
{
struct bge_softc *sc = (struct bge_softc *)dev;
struct mii_data *mii = &sc->bge_mii;
/*
* Get flow control negotiation result.
*/
if (IFM_SUBTYPE(mii->mii_media.ifm_cur->ifm_media) == IFM_AUTO &&
(mii->mii_media_active & IFM_ETH_FMASK) != sc->bge_flowflags) {
sc->bge_flowflags = mii->mii_media_active & IFM_ETH_FMASK;
mii->mii_media_active &= ~IFM_ETH_FMASK;
}
BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE);
if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T)
BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII);
else
BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII);
if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
else
BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
/*
* 802.3x flow control
*/
if (sc->bge_flowflags & IFM_ETH_RXPAUSE)
BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_FLOWCTL_ENABLE);
else
BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_FLOWCTL_ENABLE);
if (sc->bge_flowflags & IFM_ETH_TXPAUSE)
BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_FLOWCTL_ENABLE);
else
BGE_CLRBIT(sc, BGE_TX_MODE, BGE_TXMODE_FLOWCTL_ENABLE);
}
/*
* Memory management for Jumbo frames.
*/
int
bge_alloc_jumbo_mem(struct bge_softc *sc)
{
caddr_t ptr, kva;
bus_dma_segment_t seg;
int i, rseg, state, error;
struct bge_jpool_entry *entry;
state = error = 0;
/* Grab a big chunk o' storage. */
if (bus_dmamem_alloc(sc->bge_dmatag, BGE_JMEM, PAGE_SIZE, 0,
&seg, 1, &rseg, BUS_DMA_NOWAIT)) {
printf("%s: can't alloc rx buffers\n", sc->bge_dev.dv_xname);
return (ENOBUFS);
}
state = 1;
if (bus_dmamem_map(sc->bge_dmatag, &seg, rseg, BGE_JMEM, &kva,
BUS_DMA_NOWAIT)) {
printf("%s: can't map dma buffers (%d bytes)\n",
sc->bge_dev.dv_xname, BGE_JMEM);
error = ENOBUFS;
goto out;
}
state = 2;
if (bus_dmamap_create(sc->bge_dmatag, BGE_JMEM, 1, BGE_JMEM, 0,
BUS_DMA_NOWAIT, &sc->bge_cdata.bge_rx_jumbo_map)) {
printf("%s: can't create dma map\n", sc->bge_dev.dv_xname);
error = ENOBUFS;
goto out;
}
state = 3;
if (bus_dmamap_load(sc->bge_dmatag, sc->bge_cdata.bge_rx_jumbo_map,
kva, BGE_JMEM, NULL, BUS_DMA_NOWAIT)) {
printf("%s: can't load dma map\n", sc->bge_dev.dv_xname);
error = ENOBUFS;
goto out;
}
state = 4;
sc->bge_cdata.bge_jumbo_buf = (caddr_t)kva;
DPRINTFN(1,("bge_jumbo_buf = 0x%08X\n", sc->bge_cdata.bge_jumbo_buf));
SLIST_INIT(&sc->bge_jfree_listhead);
SLIST_INIT(&sc->bge_jinuse_listhead);
/*
* Now divide it up into 9K pieces and save the addresses
* in an array.
*/
ptr = sc->bge_cdata.bge_jumbo_buf;
for (i = 0; i < BGE_JSLOTS; i++) {
sc->bge_cdata.bge_jslots[i] = ptr;
ptr += BGE_JLEN;
entry = malloc(sizeof(struct bge_jpool_entry),
M_DEVBUF, M_NOWAIT);
if (entry == NULL) {
printf("%s: no memory for jumbo buffer queue!\n",
sc->bge_dev.dv_xname);
error = ENOBUFS;
goto out;
}
entry->slot = i;
SLIST_INSERT_HEAD(&sc->bge_jfree_listhead,
entry, jpool_entries);
}
out:
if (error != 0) {
switch (state) {
case 4:
bus_dmamap_unload(sc->bge_dmatag,
sc->bge_cdata.bge_rx_jumbo_map);
case 3:
bus_dmamap_destroy(sc->bge_dmatag,
sc->bge_cdata.bge_rx_jumbo_map);
case 2:
bus_dmamem_unmap(sc->bge_dmatag, kva, BGE_JMEM);
case 1:
bus_dmamem_free(sc->bge_dmatag, &seg, rseg);
break;
default:
break;
}
}
return (error);
}
/*
* Allocate a Jumbo buffer.
*/
void *
bge_jalloc(struct bge_softc *sc)
{
struct bge_jpool_entry *entry;
entry = SLIST_FIRST(&sc->bge_jfree_listhead);
if (entry == NULL)
return (NULL);
SLIST_REMOVE_HEAD(&sc->bge_jfree_listhead, jpool_entries);
SLIST_INSERT_HEAD(&sc->bge_jinuse_listhead, entry, jpool_entries);
return (sc->bge_cdata.bge_jslots[entry->slot]);
}
/*
* Release a Jumbo buffer.
*/
void
bge_jfree(caddr_t buf, u_int size, void *arg)
{
struct bge_jpool_entry *entry;
struct bge_softc *sc;
int i;
/* Extract the softc struct pointer. */
sc = (struct bge_softc *)arg;
if (sc == NULL)
panic("bge_jfree: can't find softc pointer!");
/* calculate the slot this buffer belongs to */
i = ((vaddr_t)buf
- (vaddr_t)sc->bge_cdata.bge_jumbo_buf) / BGE_JLEN;
if ((i < 0) || (i >= BGE_JSLOTS))
panic("bge_jfree: asked to free buffer that we don't manage!");
entry = SLIST_FIRST(&sc->bge_jinuse_listhead);
if (entry == NULL)
panic("bge_jfree: buffer not in use!");
entry->slot = i;
SLIST_REMOVE_HEAD(&sc->bge_jinuse_listhead, jpool_entries);
SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, entry, jpool_entries);
}
/*
* Intialize a standard receive ring descriptor.
*/
int
bge_newbuf_std(struct bge_softc *sc, int i, struct mbuf *m,
bus_dmamap_t dmamap)
{
struct mbuf *m_new = NULL;
struct bge_rx_bd *r;
int error;
if (dmamap == NULL) {
error = bus_dmamap_create(sc->bge_dmatag, MCLBYTES, 1,
MCLBYTES, 0, BUS_DMA_NOWAIT, &dmamap);
if (error != 0)
return (error);
}
sc->bge_cdata.bge_rx_std_map[i] = dmamap;
if (m == NULL) {
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
if (m_new == NULL)
return (ENOBUFS);
MCLGET(m_new, M_DONTWAIT);
if (!(m_new->m_flags & M_EXT)) {
m_freem(m_new);
return (ENOBUFS);
}
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
} else {
/*
* We're re-using a previously allocated mbuf;
* be sure to re-init pointers and lengths to
* default values.
*/
m_new = m;
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
m_new->m_data = m_new->m_ext.ext_buf;
}
if (!(sc->bge_flags & BGE_RX_ALIGNBUG))
m_adj(m_new, ETHER_ALIGN);
error = bus_dmamap_load_mbuf(sc->bge_dmatag, dmamap, m_new,
BUS_DMA_READ|BUS_DMA_NOWAIT);
if (error) {
if (m == NULL) {
m_freem(m_new);
sc->bge_cdata.bge_rx_std_chain[i] = NULL;
}
return (ENOBUFS);
}
sc->bge_cdata.bge_rx_std_chain[i] = m_new;
r = &sc->bge_rdata->bge_rx_std_ring[i];
BGE_HOSTADDR(r->bge_addr, dmamap->dm_segs[0].ds_addr);
r->bge_flags = BGE_RXBDFLAG_END;
r->bge_len = m_new->m_len;
r->bge_idx = i;
bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map,
offsetof(struct bge_ring_data, bge_rx_std_ring) +
i * sizeof (struct bge_rx_bd),
sizeof (struct bge_rx_bd),
BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
return (0);
}
/*
* Initialize a Jumbo receive ring descriptor. This allocates
* a Jumbo buffer from the pool managed internally by the driver.
*/
int
bge_newbuf_jumbo(struct bge_softc *sc, int i, struct mbuf *m)
{
struct mbuf *m_new = NULL;
struct bge_rx_bd *r;
if (m == NULL) {
caddr_t buf = NULL;
/* Allocate the mbuf. */
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
if (m_new == NULL)
return (ENOBUFS);
/* Allocate the Jumbo buffer */
buf = bge_jalloc(sc);
if (buf == NULL) {
m_freem(m_new);
return (ENOBUFS);
}
/* Attach the buffer to the mbuf. */
m_new->m_len = m_new->m_pkthdr.len = BGE_JUMBO_FRAMELEN;
MEXTADD(m_new, buf, BGE_JUMBO_FRAMELEN, 0, bge_jfree, sc);
} else {
/*
* We're re-using a previously allocated mbuf;
* be sure to re-init pointers and lengths to
* default values.
*/
m_new = m;
m_new->m_data = m_new->m_ext.ext_buf;
m_new->m_ext.ext_size = BGE_JUMBO_FRAMELEN;
}
if (!(sc->bge_flags & BGE_RX_ALIGNBUG))
m_adj(m_new, ETHER_ALIGN);
/* Set up the descriptor. */
r = &sc->bge_rdata->bge_rx_jumbo_ring[i];
sc->bge_cdata.bge_rx_jumbo_chain[i] = m_new;
BGE_HOSTADDR(r->bge_addr, BGE_JUMBO_DMA_ADDR(sc, m_new));
r->bge_flags = BGE_RXBDFLAG_END|BGE_RXBDFLAG_JUMBO_RING;
r->bge_len = m_new->m_len;
r->bge_idx = i;
bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map,
offsetof(struct bge_ring_data, bge_rx_jumbo_ring) +
i * sizeof (struct bge_rx_bd),
sizeof (struct bge_rx_bd),
BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
return (0);
}
/*
* The standard receive ring has 512 entries in it. At 2K per mbuf cluster,
* that's 1MB or memory, which is a lot. For now, we fill only the first
* 256 ring entries and hope that our CPU is fast enough to keep up with
* the NIC.
*/
int
bge_init_rx_ring_std(struct bge_softc *sc)
{
int i;
if (sc->bge_flags & BGE_RXRING_VALID)
return (0);
for (i = 0; i < BGE_SSLOTS; i++) {
if (bge_newbuf_std(sc, i, NULL, 0) == ENOBUFS)
return (ENOBUFS);
}
sc->bge_std = i - 1;
CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
sc->bge_flags |= BGE_RXRING_VALID;
return (0);
}
void
bge_free_rx_ring_std(struct bge_softc *sc)
{
int i;
if (!(sc->bge_flags & BGE_RXRING_VALID))
return;
for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
if (sc->bge_cdata.bge_rx_std_chain[i] != NULL) {
m_freem(sc->bge_cdata.bge_rx_std_chain[i]);
sc->bge_cdata.bge_rx_std_chain[i] = NULL;
bus_dmamap_destroy(sc->bge_dmatag,
sc->bge_cdata.bge_rx_std_map[i]);
}
bzero((char *)&sc->bge_rdata->bge_rx_std_ring[i],
sizeof(struct bge_rx_bd));
}
sc->bge_flags &= ~BGE_RXRING_VALID;
}
int
bge_init_rx_ring_jumbo(struct bge_softc *sc)
{
int i;
volatile struct bge_rcb *rcb;
if (sc->bge_flags & BGE_JUMBO_RXRING_VALID)
return (0);
for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
if (bge_newbuf_jumbo(sc, i, NULL) == ENOBUFS)
return (ENOBUFS);
};
sc->bge_jumbo = i - 1;
sc->bge_flags |= BGE_JUMBO_RXRING_VALID;
rcb = &sc->bge_rdata->bge_info.bge_jumbo_rx_rcb;
rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 0);
CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
return (0);
}
void
bge_free_rx_ring_jumbo(struct bge_softc *sc)
{
int i;
if (!(sc->bge_flags & BGE_JUMBO_RXRING_VALID))
return;
for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
if (sc->bge_cdata.bge_rx_jumbo_chain[i] != NULL) {
m_freem(sc->bge_cdata.bge_rx_jumbo_chain[i]);
sc->bge_cdata.bge_rx_jumbo_chain[i] = NULL;
}
bzero((char *)&sc->bge_rdata->bge_rx_jumbo_ring[i],
sizeof(struct bge_rx_bd));
}
sc->bge_flags &= ~BGE_JUMBO_RXRING_VALID;
}
void
bge_free_tx_ring(struct bge_softc *sc)
{
int i;
struct txdmamap_pool_entry *dma;
if (!(sc->bge_flags & BGE_TXRING_VALID))
return;
for (i = 0; i < BGE_TX_RING_CNT; i++) {
if (sc->bge_cdata.bge_tx_chain[i] != NULL) {
m_freem(sc->bge_cdata.bge_tx_chain[i]);
sc->bge_cdata.bge_tx_chain[i] = NULL;
SLIST_INSERT_HEAD(&sc->txdma_list, sc->txdma[i],
link);
sc->txdma[i] = 0;
}
bzero((char *)&sc->bge_rdata->bge_tx_ring[i],
sizeof(struct bge_tx_bd));
}
while ((dma = SLIST_FIRST(&sc->txdma_list))) {
SLIST_REMOVE_HEAD(&sc->txdma_list, link);
bus_dmamap_destroy(sc->bge_dmatag, dma->dmamap);
free(dma, M_DEVBUF);
}
sc->bge_flags &= ~BGE_TXRING_VALID;
}
int
bge_init_tx_ring(struct bge_softc *sc)
{
int i;
bus_dmamap_t dmamap;
struct txdmamap_pool_entry *dma;
if (sc->bge_flags & BGE_TXRING_VALID)
return (0);
sc->bge_txcnt = 0;
sc->bge_tx_saved_considx = 0;
/* Initialize transmit producer index for host-memory send ring. */
sc->bge_tx_prodidx = 0;
CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
if (BGE_CHIPREV(sc->bge_chipid) == BGE_CHIPREV_5700_BX)
CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
/* NIC-memory send ring not used; initialize to zero. */
CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
if (BGE_CHIPREV(sc->bge_chipid) == BGE_CHIPREV_5700_BX)
CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
SLIST_INIT(&sc->txdma_list);
for (i = 0; i < BGE_TX_RING_CNT; i++) {
if (bus_dmamap_create(sc->bge_dmatag, BGE_JLEN,
BGE_NTXSEG, BGE_JLEN, 0, BUS_DMA_NOWAIT,
&dmamap))
return (ENOBUFS);
if (dmamap == NULL)
panic("dmamap NULL in bge_init_tx_ring");
dma = malloc(sizeof(*dma), M_DEVBUF, M_NOWAIT);
if (dma == NULL) {
printf("%s: can't alloc txdmamap_pool_entry\n",
sc->bge_dev.dv_xname);
bus_dmamap_destroy(sc->bge_dmatag, dmamap);
return (ENOMEM);
}
dma->dmamap = dmamap;
SLIST_INSERT_HEAD(&sc->txdma_list, dma, link);
}
sc->bge_flags |= BGE_TXRING_VALID;
return (0);
}
void
bge_iff(struct bge_softc *sc)
{
struct arpcom *ac = &sc->arpcom;
struct ifnet *ifp = &ac->ac_if;
struct ether_multi *enm;
struct ether_multistep step;
u_int8_t hashes[16];
u_int32_t h, rxmode;
/* First, zot all the existing filters. */
rxmode = CSR_READ_4(sc, BGE_RX_MODE) & ~BGE_RXMODE_RX_PROMISC;
ifp->if_flags &= ~IFF_ALLMULTI;
memset(hashes, 0x00, sizeof(hashes));
if (ifp->if_flags & IFF_PROMISC)
rxmode |= BGE_RXMODE_RX_PROMISC;
else if (ac->ac_multirangecnt > 0) {
ifp->if_flags |= IFF_ALLMULTI;
memset(hashes, 0xff, sizeof(hashes));
} else {
ETHER_FIRST_MULTI(step, ac, enm);
while (enm != NULL) {
h = ether_crc32_le(enm->enm_addrlo, ETHER_ADDR_LEN);
setbit(hashes, h & 0x7F);
ETHER_NEXT_MULTI(step, enm);
}
}
bus_space_write_raw_region_4(sc->bge_btag, sc->bge_bhandle, BGE_MAR0,
hashes, sizeof(hashes));
CSR_WRITE_4(sc, BGE_RX_MODE, rxmode);
}
/*
* Do endian, PCI and DMA initialization.
*/
void
bge_chipinit(struct bge_softc *sc)
{
struct pci_attach_args *pa = &(sc->bge_pa);
u_int32_t dma_rw_ctl;
int i;
/* Set endianness before we access any non-PCI registers. */
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL,
BGE_INIT);
/* Clear the MAC control register */
CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
/*
* Clear the MAC statistics block in the NIC's
* internal memory.
*/
for (i = BGE_STATS_BLOCK;
i < BGE_STATS_BLOCK_END + 1; i += sizeof(u_int32_t))
BGE_MEMWIN_WRITE(pa->pa_pc, pa->pa_tag, i, 0);
for (i = BGE_STATUS_BLOCK;
i < BGE_STATUS_BLOCK_END + 1; i += sizeof(u_int32_t))
BGE_MEMWIN_WRITE(pa->pa_pc, pa->pa_tag, i, 0);
/* Set up the PCI DMA control register. */
if (sc->bge_flags & BGE_PCIE) {
/* PCI Express bus */
u_int32_t device_ctl;
/* alternative from Linux driver */
#define DMA_CTRL_WRITE_PCIE_H20MARK_128 0x00180000
#define DMA_CTRL_WRITE_PCIE_H20MARK_256 0x00380000
dma_rw_ctl = 0x76000000; /* XXX XXX XXX */;
device_ctl = pci_conf_read(pa->pa_pc, pa->pa_tag,
BGE_PCI_CONF_DEV_CTRL);
if ((device_ctl & 0x00e0) && 0) {
/*
* This clause is exactly what the Broadcom-supplied
* Linux does; but given overall register programming
* by bge(4), this larger DMA-write watermark
* value causes BCM5721 chips to totally wedge.
*/
dma_rw_ctl |= BGE_PCIDMA_RWCTL_PCIE_WRITE_WATRMARK_256;
} else {
dma_rw_ctl |= BGE_PCIDMA_RWCTL_PCIE_WRITE_WATRMARK_128;
}
} else if (sc->bge_flags & BGE_PCIX) {
/* PCI-X bus */
if (BGE_IS_5714_FAMILY(sc)) {
dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD;
dma_rw_ctl &= ~BGE_PCIDMARWCTL_ONEDMA_ATONCE; /* XXX */
/* XXX magic values, Broadcom-supplied Linux driver */
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5780)
dma_rw_ctl |= (1 << 20) | (1 << 18) |
BGE_PCIDMARWCTL_ONEDMA_ATONCE;
else
dma_rw_ctl |= (1<<20) | (1<<18) | (1 << 15);
} else if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5704)
/*
* The 5704 uses a different encoding of read/write
* watermarks.
*/
dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
(0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
(0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
else
dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
(0x3 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
(0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) |
(0x0F);
/*
* 5703 and 5704 need ONEDMA_AT_ONCE as a workaround
* for hardware bugs.
*/
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5703 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5704) {
u_int32_t tmp;
tmp = CSR_READ_4(sc, BGE_PCI_CLKCTL) & 0x1f;
if (tmp == 0x6 || tmp == 0x7)
dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE;
}
} else {
/* Conventional PCI bus */
dma_rw_ctl = BGE_PCI_READ_CMD | BGE_PCI_WRITE_CMD |
(0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
(0x7 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) |
(0x0f);
}
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5703 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5704 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5705)
dma_rw_ctl &= ~BGE_PCIDMARWCTL_MINDMA;
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, dma_rw_ctl);
/*
* Set up general mode register.
*/
#ifndef BGE_CHECKSUM
CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS|
BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS|
BGE_MODECTL_TX_NO_PHDR_CSUM|BGE_MODECTL_RX_NO_PHDR_CSUM);
#else
CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS|
BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS);
#endif
/*
* Disable memory write invalidate. Apparently it is not supported
* properly by these devices.
*/
PCI_CLRBIT(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
PCI_COMMAND_INVALIDATE_ENABLE);
#ifdef __brokenalpha__
/*
* Must insure that we do not cross an 8K (bytes) boundary
* for DMA reads. Our highest limit is 1K bytes. This is a
* restriction on some ALPHA platforms with early revision
* 21174 PCI chipsets, such as the AlphaPC 164lx
*/
PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL,
BGE_PCI_READ_BNDRY_1024);
#endif
/* Set the timer prescaler (always 66MHz) */
CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/);
}
int
bge_blockinit(struct bge_softc *sc)
{
volatile struct bge_rcb *rcb;
vaddr_t rcb_addr;
int i;
bge_hostaddr taddr;
u_int32_t val;
/*
* Initialize the memory window pointer register so that
* we can access the first 32K of internal NIC RAM. This will
* allow us to set up the TX send ring RCBs and the RX return
* ring RCBs, plus other things which live in NIC memory.
*/
CSR_WRITE_4(sc, BGE_PCI_MEMWIN_BASEADDR, 0);
/* Configure mbuf memory pool */
if (!(BGE_IS_5705_OR_BEYOND(sc))) {
CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR,
BGE_BUFFPOOL_1);
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5704)
CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000);
else
CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000);
/* Configure DMA resource pool */
CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR,
BGE_DMA_DESCRIPTORS);
CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000);
}
/* Configure mbuf pool watermarks */
/* new Broadcom docs strongly recommend these: */
if (!(BGE_IS_5705_OR_BEYOND(sc))) {
CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x50);
CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x20);
CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
} else {
CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10);
CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
}
/* Configure DMA resource watermarks */
CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5);
CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10);
/* Enable buffer manager */
CSR_WRITE_4(sc, BGE_BMAN_MODE,
BGE_BMANMODE_ENABLE|BGE_BMANMODE_LOMBUF_ATTN);
/* Poll for buffer manager start indication */
for (i = 0; i < 2000; i++) {
if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE)
break;
DELAY(10);
}
if (i == 2000) {
printf("%s: buffer manager failed to start\n",
sc->bge_dev.dv_xname);
return (ENXIO);
}
/* Enable flow-through queues */
CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
/* Wait until queue initialization is complete */
for (i = 0; i < 2000; i++) {
if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0)
break;
DELAY(10);
}
if (i == 2000) {
printf("%s: flow-through queue init failed\n",
sc->bge_dev.dv_xname);
return (ENXIO);
}
/* Initialize the standard RX ring control block */
rcb = &sc->bge_rdata->bge_info.bge_std_rx_rcb;
BGE_HOSTADDR(rcb->bge_hostaddr, BGE_RING_DMA_ADDR(sc, bge_rx_std_ring));
if (BGE_IS_5705_OR_BEYOND(sc))
rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0);
else
rcb->bge_maxlen_flags =
BGE_RCB_MAXLEN_FLAGS(ETHER_MAX_DIX_LEN, 0);
rcb->bge_nicaddr = BGE_STD_RX_RINGS;
CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi);
CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo);
CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr);
/*
* Initialize the Jumbo RX ring control block
* We set the 'ring disabled' bit in the flags
* field until we're actually ready to start
* using this ring (i.e. once we set the MTU
* high enough to require it).
*/
if (BGE_IS_JUMBO_CAPABLE(sc)) {
rcb = &sc->bge_rdata->bge_info.bge_jumbo_rx_rcb;
BGE_HOSTADDR(rcb->bge_hostaddr,
BGE_RING_DMA_ADDR(sc, bge_rx_jumbo_ring));
rcb->bge_maxlen_flags =
BGE_RCB_MAXLEN_FLAGS(BGE_JUMBO_FRAMELEN,
BGE_RCB_FLAG_RING_DISABLED);
rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS;
CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI,
rcb->bge_hostaddr.bge_addr_hi);
CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO,
rcb->bge_hostaddr.bge_addr_lo);
CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS,
rcb->bge_maxlen_flags);
CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR,
rcb->bge_nicaddr);
/* Set up dummy disabled mini ring RCB */
rcb = &sc->bge_rdata->bge_info.bge_mini_rx_rcb;
rcb->bge_maxlen_flags =
BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED);
CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS,
rcb->bge_maxlen_flags);
bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map,
offsetof(struct bge_ring_data, bge_info),
sizeof (struct bge_gib),
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
}
/*
* Set the BD ring replenish thresholds. The recommended
* values are 1/8th the number of descriptors allocated to
* each ring.
*/
i = BGE_STD_RX_RING_CNT / 8;
/*
* Use a value of 8 for the following chips to workaround HW errata.
* Some of these chips have been added based on empirical
* evidence (they don't work unless this is done).
*/
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5750 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5752 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5755 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5787)
i = 8;
CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, i);
CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH, BGE_JUMBO_RX_RING_CNT / 8);
/*
* Disable all unused send rings by setting the 'ring disabled'
* bit in the flags field of all the TX send ring control blocks.
* These are located in NIC memory.
*/
rcb_addr = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
for (i = 0; i < BGE_TX_RINGS_EXTSSRAM_MAX; i++) {
RCB_WRITE_4(sc, rcb_addr, bge_maxlen_flags,
BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED));
RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0);
rcb_addr += sizeof(struct bge_rcb);
}
/* Configure TX RCB 0 (we use only the first ring) */
rcb_addr = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
BGE_HOSTADDR(taddr, BGE_RING_DMA_ADDR(sc, bge_tx_ring));
RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
RCB_WRITE_4(sc, rcb_addr, bge_nicaddr,
BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT));
if (!(BGE_IS_5705_OR_BEYOND(sc)))
RCB_WRITE_4(sc, rcb_addr, bge_maxlen_flags,
BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0));
/* Disable all unused RX return rings */
rcb_addr = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
for (i = 0; i < BGE_RX_RINGS_MAX; i++) {
RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, 0);
RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, 0);
RCB_WRITE_4(sc, rcb_addr, bge_maxlen_flags,
BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt,
BGE_RCB_FLAG_RING_DISABLED));
RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0);
CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO +
(i * (sizeof(u_int64_t))), 0);
rcb_addr += sizeof(struct bge_rcb);
}
/* Initialize RX ring indexes */
CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, 0);
CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0);
CSR_WRITE_4(sc, BGE_MBX_RX_MINI_PROD_LO, 0);
/*
* Set up RX return ring 0
* Note that the NIC address for RX return rings is 0x00000000.
* The return rings live entirely within the host, so the
* nicaddr field in the RCB isn't used.
*/
rcb_addr = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
BGE_HOSTADDR(taddr, BGE_RING_DMA_ADDR(sc, bge_rx_return_ring));
RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0x00000000);
RCB_WRITE_4(sc, rcb_addr, bge_maxlen_flags,
BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0));
/* Set random backoff seed for TX */
CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF,
sc->arpcom.ac_enaddr[0] + sc->arpcom.ac_enaddr[1] +
sc->arpcom.ac_enaddr[2] + sc->arpcom.ac_enaddr[3] +
sc->arpcom.ac_enaddr[4] + sc->arpcom.ac_enaddr[5] +
BGE_TX_BACKOFF_SEED_MASK);
/* Set inter-packet gap */
CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620);
/*
* Specify which ring to use for packets that don't match
* any RX rules.
*/
CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08);
/*
* Configure number of RX lists. One interrupt distribution
* list, sixteen active lists, one bad frames class.
*/
CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181);
/* Inialize RX list placement stats mask. */
CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF);
CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1);
/* Disable host coalescing until we get it set up */
CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000);
/* Poll to make sure it's shut down. */
for (i = 0; i < 2000; i++) {
if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE))
break;
DELAY(10);
}
if (i == 2000) {
printf("%s: host coalescing engine failed to idle\n",
sc->bge_dev.dv_xname);
return (ENXIO);
}
/* Set up host coalescing defaults */
CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks);
CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks);
CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_max_coal_bds);
CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_max_coal_bds);
if (!(BGE_IS_5705_OR_BEYOND(sc))) {
CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT, 0);
CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT, 0);
}
CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 0);
CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 0);
/* Set up address of statistics block */
if (!(BGE_IS_5705_OR_BEYOND(sc))) {
CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI, 0);
CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO,
BGE_RING_DMA_ADDR(sc, bge_info.bge_stats));
CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK);
CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK);
CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks);
}
/* Set up address of status block */
BGE_HOSTADDR(taddr, BGE_RING_DMA_ADDR(sc, bge_status_block));
CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI, taddr.bge_addr_hi);
CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO, taddr.bge_addr_lo);
sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx = 0;
sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx = 0;
/* Turn on host coalescing state machine */
CSR_WRITE_4(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE);
/* Turn on RX BD completion state machine and enable attentions */
CSR_WRITE_4(sc, BGE_RBDC_MODE,
BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN);
/* Turn on RX list placement state machine */
CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
/* Turn on RX list selector state machine. */
if (!(BGE_IS_5705_OR_BEYOND(sc)))
CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
/* Turn on DMA, clear stats */
CSR_WRITE_4(sc, BGE_MAC_MODE, BGE_MACMODE_TXDMA_ENB|
BGE_MACMODE_RXDMA_ENB|BGE_MACMODE_RX_STATS_CLEAR|
BGE_MACMODE_TX_STATS_CLEAR|BGE_MACMODE_RX_STATS_ENB|
BGE_MACMODE_TX_STATS_ENB|BGE_MACMODE_FRMHDR_DMA_ENB|
(sc->bge_flags & BGE_TBI ? BGE_PORTMODE_TBI : BGE_PORTMODE_MII));
/* Set misc. local control, enable interrupts on attentions */
CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN);
#ifdef notdef
/* Assert GPIO pins for PHY reset */
BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0|
BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2);
BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0|
BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2);
#endif
/* Turn on DMA completion state machine */
if (!(BGE_IS_5705_OR_BEYOND(sc)))
CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
val = BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS;
/* Enable host coalescing bug fix. */
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5755 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5787)
val |= (1 << 29);
/* Turn on write DMA state machine */
CSR_WRITE_4(sc, BGE_WDMA_MODE, val);
/* Turn on read DMA state machine */
{
uint32_t dma_read_modebits;
dma_read_modebits =
BGE_RDMAMODE_ENABLE | BGE_RDMAMODE_ALL_ATTNS;
if (sc->bge_flags & BGE_PCIE && 0)
dma_read_modebits |= BGE_RDMA_MODE_FIFO_LONG_BURST;
CSR_WRITE_4(sc, BGE_RDMA_MODE, dma_read_modebits);
}
/* Turn on RX data completion state machine */
CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
/* Turn on RX BD initiator state machine */
CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
/* Turn on RX data and RX BD initiator state machine */
CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE);
/* Turn on Mbuf cluster free state machine */
if (!(BGE_IS_5705_OR_BEYOND(sc)))
CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
/* Turn on send BD completion state machine */
CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
/* Turn on send data completion state machine */
CSR_WRITE_4(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE);
/* Turn on send data initiator state machine */
CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
/* Turn on send BD initiator state machine */
CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
/* Turn on send BD selector state machine */
CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF);
CSR_WRITE_4(sc, BGE_SDI_STATS_CTL,
BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER);
/* ack/clear link change events */
CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
BGE_MACSTAT_LINK_CHANGED);
/* Enable PHY auto polling (for MII/GMII only) */
if (sc->bge_flags & BGE_TBI) {
CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK);
} else {
BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL|10<<16);
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5700 &&
sc->bge_chipid != BGE_CHIPID_BCM5700_B2)
CSR_WRITE_4(sc, BGE_MAC_EVT_ENB,
BGE_EVTENB_MI_INTERRUPT);
}
/*
* Clear any pending link state attention.
* Otherwise some link state change events may be lost until attention
* is cleared by bge_intr() -> bge_link_upd() sequence.
* It's not necessary on newer BCM chips - perhaps enabling link
* state change attentions implies clearing pending attention.
*/
CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
BGE_MACSTAT_LINK_CHANGED);
/* Enable link state change attentions. */
BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED);
return (0);
}
const struct bge_revision *
bge_lookup_rev(u_int32_t chipid)
{
const struct bge_revision *br;
for (br = bge_revisions; br->br_name != NULL; br++) {
if (br->br_chipid == chipid)
return (br);
}
for (br = bge_majorrevs; br->br_name != NULL; br++) {
if (br->br_chipid == BGE_ASICREV(chipid))
return (br);
}
return (NULL);
}
/*
* Probe for a Broadcom chip. Check the PCI vendor and device IDs
* against our list and return its name if we find a match. Note
* that since the Broadcom controller contains VPD support, we
* can get the device name string from the controller itself instead
* of the compiled-in string. This is a little slow, but it guarantees
* we'll always announce the right product name.
*/
int
bge_probe(struct device *parent, void *match, void *aux)
{
return (pci_matchbyid((struct pci_attach_args *)aux, bge_devices,
sizeof(bge_devices)/sizeof(bge_devices[0])));
}
void
bge_attach(struct device *parent, struct device *self, void *aux)
{
struct bge_softc *sc = (struct bge_softc *)self;
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
const struct bge_revision *br;
pcireg_t pm_ctl, memtype, subid;
pci_intr_handle_t ih;
const char *intrstr = NULL;
bus_size_t size;
bus_dma_segment_t seg;
int rseg, gotenaddr = 0;
u_int32_t hwcfg = 0;
u_int32_t mac_addr = 0;
u_int32_t misccfg;
struct ifnet *ifp;
caddr_t kva;
#ifdef __sparc64__
int subvendor;
#endif
sc->bge_pa = *pa;
subid = pci_conf_read(pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
/*
* Map control/status registers.
*/
DPRINTFN(5, ("Map control/status regs\n"));
DPRINTFN(5, ("pci_mapreg_map\n"));
memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, BGE_PCI_BAR0);
switch (memtype) {
case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
if (pci_mapreg_map(pa, BGE_PCI_BAR0,
memtype, 0, &sc->bge_btag, &sc->bge_bhandle,
NULL, &size, 0) == 0)
break;
default:
printf(": can't find mem space\n");
return;
}
DPRINTFN(5, ("pci_intr_map\n"));
if (pci_intr_map(pa, &ih)) {
printf(": couldn't map interrupt\n");
goto fail_1;
}
DPRINTFN(5, ("pci_intr_string\n"));
intrstr = pci_intr_string(pc, ih);
/*
* Kludge for 5700 Bx bug: a hardware bug (PCIX byte enable?)
* can clobber the chip's PCI config-space power control registers,
* leaving the card in D3 powersave state.
* We do not have memory-mapped registers in this state,
* so force device into D0 state before starting initialization.
*/
pm_ctl = pci_conf_read(pc, pa->pa_tag, BGE_PCI_PWRMGMT_CMD);
pm_ctl &= ~(PCI_PWR_D0|PCI_PWR_D1|PCI_PWR_D2|PCI_PWR_D3);
pm_ctl |= (1 << 8) | PCI_PWR_D0 ; /* D0 state */
pci_conf_write(pc, pa->pa_tag, BGE_PCI_PWRMGMT_CMD, pm_ctl);
DELAY(1000); /* 27 usec is allegedly sufficent */
/*
* Save ASIC rev.
*/
sc->bge_chipid =
pci_conf_read(pc, pa->pa_tag, BGE_PCI_MISC_CTL) &
BGE_PCIMISCCTL_ASICREV;
printf(", ");
br = bge_lookup_rev(sc->bge_chipid);
if (br == NULL)
printf("unknown ASIC (0x%04x)", sc->bge_chipid >> 16);
else
printf("%s (0x%04x)", br->br_name, sc->bge_chipid >> 16);
/*
* PCI Express check.
*/
if (pci_get_capability(pa->pa_pc, pa->pa_tag, PCI_CAP_PCIEXPRESS,
NULL, NULL) != 0)
sc->bge_flags |= BGE_PCIE;
/*
* PCI-X check.
*/
if ((pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_PCISTATE) &
BGE_PCISTATE_PCI_BUSMODE) == 0)
sc->bge_flags |= BGE_PCIX;
/*
* SEEPROM check.
*/
#ifdef __sparc64__
if (OF_getprop(PCITAG_NODE(pa->pa_tag), "subsystem-vendor-id",
&subvendor, sizeof(subvendor)) == sizeof(subvendor)) {
if (subvendor == PCI_VENDOR_SUN)
sc->bge_flags |= BGE_NO_EEPROM;
}
#endif
/*
* When using the BCM5701 in PCI-X mode, data corruption has
* been observed in the first few bytes of some received packets.
* Aligning the packet buffer in memory eliminates the corruption.
* Unfortunately, this misaligns the packet payloads. On platforms
* which do not support unaligned accesses, we will realign the
* payloads by copying the received packets.
*/
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5701 &&
sc->bge_flags & BGE_PCIX)
sc->bge_flags |= BGE_RX_ALIGNBUG;
if (BGE_IS_JUMBO_CAPABLE(sc))
sc->bge_flags |= BGE_JUMBO_CAP;
if ((BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5700 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5701) &&
PCI_VENDOR(subid) == DELL_VENDORID)
sc->bge_flags |= BGE_NO_3LED;
misccfg = CSR_READ_4(sc, BGE_MISC_CFG);
misccfg &= BGE_MISCCFG_BOARD_ID_MASK;
if ((BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5703 &&
(misccfg == 0x4000 || misccfg == 0x8000)) ||
(BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5705 &&
PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROADCOM &&
(PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_BCM5901 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_BCM5901A2 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_BCM5705F)) ||
(PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROADCOM &&
(PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_BCM5751F ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_BCM5753F ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_BCM5787F)) ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5906)
sc->bge_flags |= BGE_10_100_ONLY;
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5700 ||
(BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5705 &&
(sc->bge_chipid != BGE_CHIPID_BCM5705_A0 &&
sc->bge_chipid != BGE_CHIPID_BCM5705_A1)) ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5906)
sc->bge_flags |= BGE_NO_ETH_WIRE_SPEED;
if (BGE_CHIPREV(sc->bge_chipid) == BGE_CHIPREV_5703_AX ||
BGE_CHIPREV(sc->bge_chipid) == BGE_CHIPREV_5704_AX)
sc->bge_flags |= BGE_PHY_ADC_BUG;
if (sc->bge_chipid == BGE_CHIPID_BCM5704_A0)
sc->bge_flags |= BGE_PHY_5704_A0_BUG;
if (BGE_IS_5705_OR_BEYOND(sc)) {
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5755 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5787) {
if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BROADCOM_BCM5722 &&
PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BROADCOM_BCM5756)
sc->bge_flags |= BGE_PHY_JITTER_BUG;
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_BCM5755M)
sc->bge_flags |= BGE_PHY_ADJUST_TRIM;
} else if (BGE_ASICREV(sc->bge_chipid) != BGE_ASICREV_BCM5906)
sc->bge_flags |= BGE_PHY_BER_BUG;
}
/* Try to reset the chip. */
DPRINTFN(5, ("bge_reset\n"));
bge_reset(sc);
bge_chipinit(sc);
#ifdef __sparc64__
if (!gotenaddr) {
if (OF_getprop(PCITAG_NODE(pa->pa_tag), "local-mac-address",
sc->arpcom.ac_enaddr, ETHER_ADDR_LEN) == ETHER_ADDR_LEN)
gotenaddr = 1;
}
#endif
/*
* Get station address from the EEPROM.
*/
if (!gotenaddr) {
mac_addr = bge_readmem_ind(sc, 0x0c14);
if ((mac_addr >> 16) == 0x484b) {
sc->arpcom.ac_enaddr[0] = (u_char)(mac_addr >> 8);
sc->arpcom.ac_enaddr[1] = (u_char)mac_addr;
mac_addr = bge_readmem_ind(sc, 0x0c18);
sc->arpcom.ac_enaddr[2] = (u_char)(mac_addr >> 24);
sc->arpcom.ac_enaddr[3] = (u_char)(mac_addr >> 16);
sc->arpcom.ac_enaddr[4] = (u_char)(mac_addr >> 8);
sc->arpcom.ac_enaddr[5] = (u_char)mac_addr;
gotenaddr = 1;
}
}
if (!gotenaddr && (!(sc->bge_flags & BGE_NO_EEPROM))) {
if (bge_read_eeprom(sc, (caddr_t)&sc->arpcom.ac_enaddr,
BGE_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN) == 0)
gotenaddr = 1;
}
#ifdef __sparc64__
if (!gotenaddr) {
extern void myetheraddr(u_char *);
myetheraddr(sc->arpcom.ac_enaddr);
gotenaddr = 1;
}
#endif
if (!gotenaddr) {
printf(": failed to read station address\n");
goto fail_1;
}
/* Allocate the general information block and ring buffers. */
sc->bge_dmatag = pa->pa_dmat;
DPRINTFN(5, ("bus_dmamem_alloc\n"));
if (bus_dmamem_alloc(sc->bge_dmatag, sizeof(struct bge_ring_data),
PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) {
printf(": can't alloc rx buffers\n");
goto fail_1;
}
DPRINTFN(5, ("bus_dmamem_map\n"));
if (bus_dmamem_map(sc->bge_dmatag, &seg, rseg,
sizeof(struct bge_ring_data), &kva,
BUS_DMA_NOWAIT)) {
printf(": can't map dma buffers (%d bytes)\n",
sizeof(struct bge_ring_data));
goto fail_2;
}
DPRINTFN(5, ("bus_dmamem_create\n"));
if (bus_dmamap_create(sc->bge_dmatag, sizeof(struct bge_ring_data), 1,
sizeof(struct bge_ring_data), 0,
BUS_DMA_NOWAIT, &sc->bge_ring_map)) {
printf(": can't create dma map\n");
goto fail_3;
}
DPRINTFN(5, ("bus_dmamem_load\n"));
if (bus_dmamap_load(sc->bge_dmatag, sc->bge_ring_map, kva,
sizeof(struct bge_ring_data), NULL,
BUS_DMA_NOWAIT)) {
goto fail_4;
}
DPRINTFN(5, ("bzero\n"));
sc->bge_rdata = (struct bge_ring_data *)kva;
bzero(sc->bge_rdata, sizeof(struct bge_ring_data));
/*
* Try to allocate memory for Jumbo buffers.
*/
if (BGE_IS_JUMBO_CAPABLE(sc)) {
if (bge_alloc_jumbo_mem(sc)) {
printf(": jumbo buffer allocation failed\n");
goto fail_5;
}
}
/* Set default tuneable values. */
sc->bge_stat_ticks = BGE_TICKS_PER_SEC;
sc->bge_rx_coal_ticks = 150;
sc->bge_rx_max_coal_bds = 64;
sc->bge_tx_coal_ticks = 300;
sc->bge_tx_max_coal_bds = 400;
/* 5705 limits RX return ring to 512 entries. */
if (BGE_IS_5705_OR_BEYOND(sc))
sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705;
else
sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT;
/* Set up ifnet structure */
ifp = &sc->arpcom.ac_if;
ifp->if_softc = sc;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = bge_ioctl;
ifp->if_start = bge_start;
ifp->if_watchdog = bge_watchdog;
ifp->if_baudrate = 1000000000;
IFQ_SET_MAXLEN(&ifp->if_snd, BGE_TX_RING_CNT - 1);
IFQ_SET_READY(&ifp->if_snd);
DPRINTFN(5, ("bcopy\n"));
bcopy(sc->bge_dev.dv_xname, ifp->if_xname, IFNAMSIZ);
ifp->if_capabilities = IFCAP_VLAN_MTU;
#if NVLAN > 0
ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING;
#endif
if (BGE_IS_JUMBO_CAPABLE(sc))
ifp->if_hardmtu = BGE_JUMBO_MTU;
/*
* Do MII setup.
*/
DPRINTFN(5, ("mii setup\n"));
sc->bge_mii.mii_ifp = ifp;
sc->bge_mii.mii_readreg = bge_miibus_readreg;
sc->bge_mii.mii_writereg = bge_miibus_writereg;
sc->bge_mii.mii_statchg = bge_miibus_statchg;
/*
* Figure out what sort of media we have by checking the hardware
* config word in the first 32K of internal NIC memory, or fall back to
* examining the EEPROM if necessary. Note: on some BCM5700 cards,
* this value seems to be unset. If that's the case, we have to rely on
* identifying the NIC by its PCI subsystem ID, as we do below for the
* SysKonnect SK-9D41.
*/
if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER)
hwcfg = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG);
else if (!(sc->bge_flags & BGE_NO_EEPROM)) {
if (bge_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET,
sizeof(hwcfg))) {
printf(": failed to read media type\n");
goto fail_5;
}
hwcfg = ntohl(hwcfg);
}
if ((hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER)
sc->bge_flags |= BGE_TBI;
/* The SysKonnect SK-9D41 is a 1000baseSX card. */
if (PCI_PRODUCT(subid) == SK_SUBSYSID_9D41)
sc->bge_flags |= BGE_TBI;
/* Hookup IRQ last. */
DPRINTFN(5, ("pci_intr_establish\n"));
sc->bge_intrhand = pci_intr_establish(pc, ih, IPL_NET, bge_intr, sc,
sc->bge_dev.dv_xname);
if (sc->bge_intrhand == NULL) {
printf(": couldn't establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
goto fail_5;
}
/*
* A Broadcom chip was detected. Inform the world.
*/
printf(": %s, address %s\n", intrstr,
ether_sprintf(sc->arpcom.ac_enaddr));
if (sc->bge_flags & BGE_TBI) {
ifmedia_init(&sc->bge_ifmedia, IFM_IMASK, bge_ifmedia_upd,
bge_ifmedia_sts);
ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL);
ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX|IFM_FDX,
0, NULL);
ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO);
sc->bge_ifmedia.ifm_media = sc->bge_ifmedia.ifm_cur->ifm_media;
} else {
/*
* Do transceiver setup.
*/
ifmedia_init(&sc->bge_mii.mii_media, 0, bge_ifmedia_upd,
bge_ifmedia_sts);
mii_attach(&sc->bge_dev, &sc->bge_mii, 0xffffffff,
MII_PHY_ANY, MII_OFFSET_ANY, MIIF_DOPAUSE);
if (LIST_FIRST(&sc->bge_mii.mii_phys) == NULL) {
printf("%s: no PHY found!\n", sc->bge_dev.dv_xname);
ifmedia_add(&sc->bge_mii.mii_media,
IFM_ETHER|IFM_MANUAL, 0, NULL);
ifmedia_set(&sc->bge_mii.mii_media,
IFM_ETHER|IFM_MANUAL);
} else
ifmedia_set(&sc->bge_mii.mii_media,
IFM_ETHER|IFM_AUTO);
}
/*
* Call MI attach routine.
*/
if_attach(ifp);
ether_ifattach(ifp);
sc->sc_shutdownhook = shutdownhook_establish(bge_shutdown, sc);
sc->sc_powerhook = powerhook_establish(bge_power, sc);
timeout_set(&sc->bge_timeout, bge_tick, sc);
return;
fail_5:
bus_dmamap_unload(sc->bge_dmatag, sc->bge_ring_map);
fail_4:
bus_dmamap_destroy(sc->bge_dmatag, sc->bge_ring_map);
fail_3:
bus_dmamem_unmap(sc->bge_dmatag, kva,
sizeof(struct bge_ring_data));
fail_2:
bus_dmamem_free(sc->bge_dmatag, &seg, rseg);
fail_1:
bus_space_unmap(sc->bge_btag, sc->bge_bhandle, size);
}
void
bge_reset(struct bge_softc *sc)
{
struct pci_attach_args *pa = &sc->bge_pa;
pcireg_t cachesize, command, pcistate, new_pcistate;
u_int32_t reset;
int i, val = 0;
/* Save some important PCI state. */
cachesize = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ);
command = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD);
pcistate = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_PCISTATE);
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL,
BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
BGE_PCIMISCCTL_ENDIAN_WORDSWAP|BGE_PCIMISCCTL_PCISTATE_RW);
/* Disable fastboot on controllers that support it. */
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5752 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5755 ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5787)
CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0);
reset = BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1);
if (sc->bge_flags & BGE_PCIE) {
if (CSR_READ_4(sc, 0x7e2c) == 0x60) {
/* PCI Express 1.0 system */
CSR_WRITE_4(sc, 0x7e2c, 0x20);
}
if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) {
/*
* Prevent PCI Express link training
* during global reset.
*/
CSR_WRITE_4(sc, BGE_MISC_CFG, (1<<29));
reset |= (1<<29);
}
}
/*
* Set GPHY Power Down Override to leave GPHY
* powered up in D0 uninitialized.
*/
if (BGE_IS_5705_OR_BEYOND(sc))
reset |= BGE_MISCCFG_KEEP_GPHY_POWER;
/* Issue global reset */
bge_writereg_ind(sc, BGE_MISC_CFG, reset);
DELAY(1000);
if (sc->bge_flags & BGE_PCIE) {
if (sc->bge_chipid == BGE_CHIPID_BCM5750_A0) {
pcireg_t v;
DELAY(500000); /* wait for link training to complete */
v = pci_conf_read(pa->pa_pc, pa->pa_tag, 0xc4);
pci_conf_write(pa->pa_pc, pa->pa_tag, 0xc4, v | (1<<15));
}
/*
* Set PCI Express max payload size to 128 bytes
* and clear error status.
*/
pci_conf_write(pa->pa_pc, pa->pa_tag,
BGE_PCI_CONF_DEV_CTRL, 0xf5000);
}
/* Reset some of the PCI state that got zapped by reset */
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL,
BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
BGE_PCIMISCCTL_ENDIAN_WORDSWAP|BGE_PCIMISCCTL_PCISTATE_RW);
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ, cachesize);
pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD, command);
bge_writereg_ind(sc, BGE_MISC_CFG, (65 << 1));
/* Enable memory arbiter. */
if (BGE_IS_5714_FAMILY(sc)) {
u_int32_t val;
val = CSR_READ_4(sc, BGE_MARB_MODE);
CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | val);
} else
CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
/*
* Prevent PXE restart: write a magic number to the
* general communications memory at 0xB50.
*/
bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER);
/*
* Poll until we see 1's complement of the magic number.
* This indicates that the firmware initialization
* is complete. We expect this to fail if no SEEPROM
* is fitted.
*/
for (i = 0; i < BGE_TIMEOUT; i++) {
val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM);
if (val == ~BGE_MAGIC_NUMBER)
break;
DELAY(10);
}
if (i >= BGE_TIMEOUT && (!(sc->bge_flags & BGE_NO_EEPROM)))
printf("%s: firmware handshake timed out\n",
sc->bge_dev.dv_xname);
/*
* XXX Wait for the value of the PCISTATE register to
* return to its original pre-reset state. This is a
* fairly good indicator of reset completion. If we don't
* wait for the reset to fully complete, trying to read
* from the device's non-PCI registers may yield garbage
* results.
*/
for (i = 0; i < BGE_TIMEOUT; i++) {
new_pcistate = pci_conf_read(pa->pa_pc, pa->pa_tag,
BGE_PCI_PCISTATE);
if ((new_pcistate & ~BGE_PCISTATE_RESERVED) ==
(pcistate & ~BGE_PCISTATE_RESERVED))
break;
DELAY(10);
}
if ((new_pcistate & ~BGE_PCISTATE_RESERVED) !=
(pcistate & ~BGE_PCISTATE_RESERVED)) {
DPRINTFN(5, ("%s: pcistate failed to revert\n",
sc->bge_dev.dv_xname));
}
/* Fix up byte swapping */
CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS);
CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
/*
* The 5704 in TBI mode apparently needs some special
* adjustment to insure the SERDES drive level is set
* to 1.2V.
*/
if (sc->bge_flags & BGE_TBI &&
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5704) {
u_int32_t serdescfg;
serdescfg = CSR_READ_4(sc, BGE_SERDES_CFG);
serdescfg = (serdescfg & ~0xFFF) | 0x880;
CSR_WRITE_4(sc, BGE_SERDES_CFG, serdescfg);
}
if (sc->bge_flags & BGE_PCIE &&
sc->bge_chipid != BGE_CHIPID_BCM5750_A0) {
u_int32_t v;
/* Enable PCI Express bug fix */
v = CSR_READ_4(sc, 0x7c00);
CSR_WRITE_4(sc, 0x7c00, v | (1<<25));
}
DELAY(10000);
}
/*
* Frame reception handling. This is called if there's a frame
* on the receive return list.
*
* Note: we have to be able to handle two possibilities here:
* 1) the frame is from the Jumbo receive ring
* 2) the frame is from the standard receive ring
*/
void
bge_rxeof(struct bge_softc *sc)
{
struct ifnet *ifp;
int stdcnt = 0, jumbocnt = 0;
bus_dmamap_t dmamap;
bus_addr_t offset, toff;
bus_size_t tlen;
int tosync;
/* Nothing to do */
if (sc->bge_rx_saved_considx ==
sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx)
return;
ifp = &sc->arpcom.ac_if;
bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map,
offsetof(struct bge_ring_data, bge_status_block),
sizeof (struct bge_status_block),
BUS_DMASYNC_POSTREAD);
offset = offsetof(struct bge_ring_data, bge_rx_return_ring);
tosync = sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx -
sc->bge_rx_saved_considx;
toff = offset + (sc->bge_rx_saved_considx * sizeof (struct bge_rx_bd));
if (tosync < 0) {
tlen = (sc->bge_return_ring_cnt - sc->bge_rx_saved_considx) *
sizeof (struct bge_rx_bd);
bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map,
toff, tlen, BUS_DMASYNC_POSTREAD);
tosync = -tosync;
}
bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map,
offset, tosync * sizeof (struct bge_rx_bd),
BUS_DMASYNC_POSTREAD);
while(sc->bge_rx_saved_considx !=
sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx) {
struct bge_rx_bd *cur_rx;
u_int32_t rxidx;
struct mbuf *m = NULL;
#ifdef BGE_CHECKSUM
int sumflags = 0;
#endif
cur_rx = &sc->bge_rdata->
bge_rx_return_ring[sc->bge_rx_saved_considx];
rxidx = cur_rx->bge_idx;
BGE_INC(sc->bge_rx_saved_considx, sc->bge_return_ring_cnt);
if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) {
BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT);
m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx];
sc->bge_cdata.bge_rx_jumbo_chain[rxidx] = NULL;
jumbocnt++;
if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
ifp->if_ierrors++;
bge_newbuf_jumbo(sc, sc->bge_jumbo, m);
continue;
}
if (bge_newbuf_jumbo(sc, sc->bge_jumbo, NULL)
== ENOBUFS) {
struct mbuf *m0;
m0 = m_devget(mtod(m, char *) - ETHER_ALIGN,
cur_rx->bge_len - ETHER_CRC_LEN +
ETHER_ALIGN, 0, ifp, NULL);
bge_newbuf_jumbo(sc, sc->bge_jumbo, m);
if (m0 == NULL) {
ifp->if_ierrors++;
continue;
}
m_adj(m0, ETHER_ALIGN);
m = m0;
}
} else {
BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT);
m = sc->bge_cdata.bge_rx_std_chain[rxidx];
sc->bge_cdata.bge_rx_std_chain[rxidx] = NULL;
stdcnt++;
dmamap = sc->bge_cdata.bge_rx_std_map[rxidx];
sc->bge_cdata.bge_rx_std_map[rxidx] = 0;
bus_dmamap_unload(sc->bge_dmatag, dmamap);
if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
ifp->if_ierrors++;
bge_newbuf_std(sc, sc->bge_std, m, dmamap);
continue;
}
if (bge_newbuf_std(sc, sc->bge_std,
NULL, dmamap) == ENOBUFS) {
ifp->if_ierrors++;
bge_newbuf_std(sc, sc->bge_std, m, dmamap);
continue;
}
}
ifp->if_ipackets++;
#ifdef __STRICT_ALIGNMENT
/*
* The i386 allows unaligned accesses, but for other
* platforms we must make sure the payload is aligned.
*/
if (sc->bge_flags & BGE_RX_ALIGNBUG) {
bcopy(m->m_data, m->m_data + ETHER_ALIGN,
cur_rx->bge_len);
m->m_data += ETHER_ALIGN;
}
#endif
m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN;
m->m_pkthdr.rcvif = ifp;
#if NBPFILTER > 0
/*
* Handle BPF listeners. Let the BPF user see the packet.
*/
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_IN);
#endif
#ifdef BGE_CHECKSUM
if ((cur_rx->bge_ip_csum ^ 0xffff) == 0)
sumflags |= M_IPV4_CSUM_IN_OK;
else
sumflags |= M_IPV4_CSUM_IN_BAD;
if (cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) {
m->m_pkthdr.csum_data =
cur_rx->bge_tcp_udp_csum;
m->m_pkthdr.csum_flags |= CSUM_DATA_VALID;
}
m->m_pkthdr.csum_flags = sumflags;
sumflags = 0;
#endif
ether_input_mbuf(ifp, m);
}
CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx);
if (stdcnt)
CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
if (jumbocnt)
CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
}
void
bge_txeof(struct bge_softc *sc)
{
struct bge_tx_bd *cur_tx = NULL;
struct ifnet *ifp;
struct txdmamap_pool_entry *dma;
bus_addr_t offset, toff;
bus_size_t tlen;
int tosync;
struct mbuf *m;
/* Nothing to do */
if (sc->bge_tx_saved_considx ==
sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx)
return;
ifp = &sc->arpcom.ac_if;
bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map,
offsetof(struct bge_ring_data, bge_status_block),
sizeof (struct bge_status_block),
BUS_DMASYNC_POSTREAD);
offset = offsetof(struct bge_ring_data, bge_tx_ring);
tosync = sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx -
sc->bge_tx_saved_considx;
toff = offset + (sc->bge_tx_saved_considx * sizeof (struct bge_tx_bd));
if (tosync < 0) {
tlen = (BGE_TX_RING_CNT - sc->bge_tx_saved_considx) *
sizeof (struct bge_tx_bd);
bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map,
toff, tlen, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
tosync = -tosync;
}
bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map,
offset, tosync * sizeof (struct bge_tx_bd),
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
/*
* Go through our tx ring and free mbufs for those
* frames that have been sent.
*/
while (sc->bge_tx_saved_considx !=
sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx) {
u_int32_t idx = 0;
idx = sc->bge_tx_saved_considx;
cur_tx = &sc->bge_rdata->bge_tx_ring[idx];
if (cur_tx->bge_flags & BGE_TXBDFLAG_END)
ifp->if_opackets++;
m = sc->bge_cdata.bge_tx_chain[idx];
if (m != NULL) {
sc->bge_cdata.bge_tx_chain[idx] = NULL;
dma = sc->txdma[idx];
bus_dmamap_sync(sc->bge_dmatag, dma->dmamap, 0,
dma->dmamap->dm_mapsize, BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->bge_dmatag, dma->dmamap);
SLIST_INSERT_HEAD(&sc->txdma_list, dma, link);
sc->txdma[idx] = NULL;
m_freem(m);
}
sc->bge_txcnt--;
BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT);
ifp->if_timer = 0;
}
if (cur_tx != NULL)
ifp->if_flags &= ~IFF_OACTIVE;
}
int
bge_intr(void *xsc)
{
struct bge_softc *sc;
struct ifnet *ifp;
u_int32_t statusword;
sc = xsc;
ifp = &sc->arpcom.ac_if;
/* It is possible for the interrupt to arrive before
* the status block is updated prior to the interrupt.
* Reading the PCI State register will confirm whether the
* interrupt is ours and will flush the status block.
*/
/* read status word from status block */
statusword = sc->bge_rdata->bge_status_block.bge_status;
if ((statusword & BGE_STATFLAG_UPDATED) ||
(!(CSR_READ_4(sc, BGE_PCI_PCISTATE) & BGE_PCISTATE_INTR_NOT_ACTIVE))) {
/* Ack interrupt and stop others from occurring. */
CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1);
/* clear status word */
sc->bge_rdata->bge_status_block.bge_status = 0;
if ((BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5700 &&
sc->bge_chipid != BGE_CHIPID_BCM5700_B2) ||
statusword & BGE_STATFLAG_LINKSTATE_CHANGED ||
sc->bge_link_evt)
bge_link_upd(sc);
if (ifp->if_flags & IFF_RUNNING) {
/* Check RX return ring producer/consumer */
bge_rxeof(sc);
/* Check TX ring producer/consumer */
bge_txeof(sc);
}
/* Re-enable interrupts. */
CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0);
if (ifp->if_flags & IFF_RUNNING && !IFQ_IS_EMPTY(&ifp->if_snd))
bge_start(ifp);
return (1);
} else
return (0);
}
void
bge_tick(void *xsc)
{
struct bge_softc *sc = xsc;
struct mii_data *mii = &sc->bge_mii;
int s;
s = splnet();
if (BGE_IS_5705_OR_BEYOND(sc))
bge_stats_update_regs(sc);
else
bge_stats_update(sc);
if (sc->bge_flags & BGE_TBI) {
/*
* Since in TBI mode auto-polling can't be used we should poll
* link status manually. Here we register pending link event
* and trigger interrupt.
*/
sc->bge_link_evt++;
BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
} else
mii_tick(mii);
timeout_add(&sc->bge_timeout, hz);
splx(s);
}
void
bge_stats_update_regs(struct bge_softc *sc)
{
struct ifnet *ifp;
struct bge_mac_stats_regs stats;
u_int32_t *s;
u_long cnt;
int i;
ifp = &sc->arpcom.ac_if;
s = (u_int32_t *)&stats;
for (i = 0; i < sizeof(struct bge_mac_stats_regs); i += 4) {
*s = CSR_READ_4(sc, BGE_RX_STATS + i);
s++;
}
cnt = stats.dot3StatsSingleCollisionFrames +
stats.dot3StatsMultipleCollisionFrames +
stats.dot3StatsExcessiveCollisions +
stats.dot3StatsLateCollisions;
ifp->if_collisions += cnt >= sc->bge_tx_collisions ?
cnt - sc->bge_tx_collisions : cnt;
sc->bge_tx_collisions = cnt;
}
void
bge_stats_update(struct bge_softc *sc)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
bus_size_t stats = BGE_MEMWIN_START + BGE_STATS_BLOCK;
u_long cnt;
#define READ_STAT(sc, stats, stat) \
CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat))
cnt = READ_STAT(sc, stats,
txstats.dot3StatsSingleCollisionFrames.bge_addr_lo);
cnt += READ_STAT(sc, stats,
txstats.dot3StatsMultipleCollisionFrames.bge_addr_lo);
cnt += READ_STAT(sc, stats,
txstats.dot3StatsExcessiveCollisions.bge_addr_lo);
cnt += READ_STAT(sc, stats,
txstats.dot3StatsLateCollisions.bge_addr_lo);
ifp->if_collisions += cnt >= sc->bge_tx_collisions ?
cnt - sc->bge_tx_collisions : cnt;
sc->bge_tx_collisions = cnt;
cnt = READ_STAT(sc, stats, ifInDiscards.bge_addr_lo);
ifp->if_ierrors += cnt >= sc->bge_rx_discards ?
cnt - sc->bge_rx_discards : cnt;
sc->bge_rx_discards = cnt;
cnt = READ_STAT(sc, stats, txstats.ifOutDiscards.bge_addr_lo);
ifp->if_oerrors += cnt >= sc->bge_tx_discards ?
cnt - sc->bge_tx_discards : cnt;
sc->bge_tx_discards = cnt;
#undef READ_STAT
}
/*
* Compact outbound packets to avoid bug with DMA segments less than 8 bytes.
*/
int
bge_compact_dma_runt(struct mbuf *pkt)
{
struct mbuf *m, *prev, *n = NULL;
int totlen, prevlen, newprevlen;
prev = NULL;
totlen = 0;
prevlen = -1;
for (m = pkt; m != NULL; prev = m,m = m->m_next) {
int mlen = m->m_len;
int shortfall = 8 - mlen ;
totlen += mlen;
if (mlen == 0)
continue;
if (mlen >= 8)
continue;
/* If we get here, mbuf data is too small for DMA engine.
* Try to fix by shuffling data to prev or next in chain.
* If that fails, do a compacting deep-copy of the whole chain.
*/
/* Internal frag. If fits in prev, copy it there. */
if (prev && M_TRAILINGSPACE(prev) >= m->m_len) {
bcopy(m->m_data,
prev->m_data+prev->m_len,
mlen);
prev->m_len += mlen;
m->m_len = 0;
/* XXX stitch chain */
prev->m_next = m_free(m);
m = prev;
continue;
} else if (m->m_next != NULL &&
M_TRAILINGSPACE(m) >= shortfall &&
m->m_next->m_len >= (8 + shortfall)) {
/* m is writable and have enough data in next, pull up. */
bcopy(m->m_next->m_data,
m->m_data+m->m_len,
shortfall);
m->m_len += shortfall;
m->m_next->m_len -= shortfall;
m->m_next->m_data += shortfall;
} else if (m->m_next == NULL || 1) {
/* Got a runt at the very end of the packet.
* borrow data from the tail of the preceding mbuf and
* update its length in-place. (The original data is still
* valid, so we can do this even if prev is not writable.)
*/
/* if we'd make prev a runt, just move all of its data. */
#ifdef DEBUG
KASSERT(prev != NULL /*, ("runt but null PREV")*/);
KASSERT(prev->m_len >= 8 /*, ("runt prev")*/);
#endif
if ((prev->m_len - shortfall) < 8)
shortfall = prev->m_len;
newprevlen = prev->m_len - shortfall;
MGET(n, M_NOWAIT, MT_DATA);
if (n == NULL)
return (ENOBUFS);
KASSERT(m->m_len + shortfall < MLEN
/*,
("runt %d +prev %d too big\n", m->m_len, shortfall)*/);
/* first copy the data we're stealing from prev */
bcopy(prev->m_data + newprevlen, n->m_data, shortfall);
/* update prev->m_len accordingly */
prev->m_len -= shortfall;
/* copy data from runt m */
bcopy(m->m_data, n->m_data + shortfall, m->m_len);
/* n holds what we stole from prev, plus m */
n->m_len = shortfall + m->m_len;
/* stitch n into chain and free m */
n->m_next = m->m_next;
prev->m_next = n;
/* KASSERT(m->m_next == NULL); */
m->m_next = NULL;
m_free(m);
m = n; /* for continuing loop */
}
prevlen = m->m_len;
}
return (0);
}
/*
* Encapsulate an mbuf chain in the tx ring by coupling the mbuf data
* pointers to descriptors.
*/
int
bge_encap(struct bge_softc *sc, struct mbuf *m_head, u_int32_t *txidx)
{
struct bge_tx_bd *f = NULL;
u_int32_t frag, cur;
u_int16_t csum_flags = 0;
struct txdmamap_pool_entry *dma;
bus_dmamap_t dmamap;
int i = 0;
#if NVLAN > 0
struct ifvlan *ifv = NULL;
if ((m_head->m_flags & (M_PROTO1|M_PKTHDR)) == (M_PROTO1|M_PKTHDR) &&
m_head->m_pkthdr.rcvif != NULL)
ifv = m_head->m_pkthdr.rcvif->if_softc;
#endif
cur = frag = *txidx;
#ifdef BGE_CHECKSUM
if (m_head->m_pkthdr.csum_flags) {
if (m_head->m_pkthdr.csum_flags & M_IPV4_CSUM_OUT)
csum_flags |= BGE_TXBDFLAG_IP_CSUM;
if (m_head->m_pkthdr.csum_flags & (M_TCPV4_CSUM_OUT |
M_UDPV4_CSUM_OUT))
csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM;
#ifdef fake
if (m_head->m_flags & M_LASTFRAG)
csum_flags |= BGE_TXBDFLAG_IP_FRAG_END;
else if (m_head->m_flags & M_FRAG)
csum_flags |= BGE_TXBDFLAG_IP_FRAG;
#endif
}
#endif
if (!(BGE_CHIPREV(sc->bge_chipid) == BGE_CHIPREV_5700_BX))
goto doit;
/*
* bcm5700 Revision B silicon cannot handle DMA descriptors with
* less than eight bytes. If we encounter a teeny mbuf
* at the end of a chain, we can pad. Otherwise, copy.
*/
if (bge_compact_dma_runt(m_head) != 0)
return (ENOBUFS);
doit:
dma = SLIST_FIRST(&sc->txdma_list);
if (dma == NULL)
return (ENOBUFS);
dmamap = dma->dmamap;
/*
* Start packing the mbufs in this chain into
* the fragment pointers. Stop when we run out
* of fragments or hit the end of the mbuf chain.
*/
if (bus_dmamap_load_mbuf(sc->bge_dmatag, dmamap, m_head,
BUS_DMA_NOWAIT))
return (ENOBUFS);
/*
* Sanity check: avoid coming within 16 descriptors
* of the end of the ring.
*/
if (dmamap->dm_nsegs > (BGE_TX_RING_CNT - sc->bge_txcnt - 16))
goto fail_unload;
for (i = 0; i < dmamap->dm_nsegs; i++) {
f = &sc->bge_rdata->bge_tx_ring[frag];
if (sc->bge_cdata.bge_tx_chain[frag] != NULL)
break;
BGE_HOSTADDR(f->bge_addr, dmamap->dm_segs[i].ds_addr);
f->bge_len = dmamap->dm_segs[i].ds_len;
f->bge_flags = csum_flags;
#if NVLAN > 0
if (ifv != NULL) {
f->bge_flags |= BGE_TXBDFLAG_VLAN_TAG;
f->bge_vlan_tag = ifv->ifv_tag;
} else {
f->bge_vlan_tag = 0;
}
#endif
cur = frag;
BGE_INC(frag, BGE_TX_RING_CNT);
}
if (i < dmamap->dm_nsegs)
goto fail_unload;
bus_dmamap_sync(sc->bge_dmatag, dmamap, 0, dmamap->dm_mapsize,
BUS_DMASYNC_PREWRITE);
if (frag == sc->bge_tx_saved_considx)
goto fail_unload;
sc->bge_rdata->bge_tx_ring[cur].bge_flags |= BGE_TXBDFLAG_END;
sc->bge_cdata.bge_tx_chain[cur] = m_head;
SLIST_REMOVE_HEAD(&sc->txdma_list, link);
sc->txdma[cur] = dma;
sc->bge_txcnt += dmamap->dm_nsegs;
*txidx = frag;
return (0);
fail_unload:
bus_dmamap_unload(sc->bge_dmatag, dmamap);
return (ENOBUFS);
}
/*
* Main transmit routine. To avoid having to do mbuf copies, we put pointers
* to the mbuf data regions directly in the transmit descriptors.
*/
void
bge_start(struct ifnet *ifp)
{
struct bge_softc *sc;
struct mbuf *m_head = NULL;
u_int32_t prodidx;
int pkts = 0;
sc = ifp->if_softc;
if (!sc->bge_link || IFQ_IS_EMPTY(&ifp->if_snd))
return;
prodidx = sc->bge_tx_prodidx;
while (sc->bge_cdata.bge_tx_chain[prodidx] == NULL) {
IFQ_POLL(&ifp->if_snd, m_head);
if (m_head == NULL)
break;
/*
* Pack the data into the transmit ring. If we
* don't have room, set the OACTIVE flag and wait
* for the NIC to drain the ring.
*/
if (bge_encap(sc, m_head, &prodidx)) {
ifp->if_flags |= IFF_OACTIVE;
break;
}
/* now we are committed to transmit the packet */
IFQ_DEQUEUE(&ifp->if_snd, m_head);
pkts++;
#if NBPFILTER > 0
/*
* If there's a BPF listener, bounce a copy of this frame
* to him.
*/
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT);
#endif
}
if (pkts == 0)
return;
/* Transmit */
CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
if (BGE_CHIPREV(sc->bge_chipid) == BGE_CHIPREV_5700_BX)
CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
sc->bge_tx_prodidx = prodidx;
/*
* Set a timeout in case the chip goes out to lunch.
*/
ifp->if_timer = 5;
}
void
bge_init(void *xsc)
{
struct bge_softc *sc = xsc;
struct ifnet *ifp;
u_int16_t *m;
int s;
s = splnet();
ifp = &sc->arpcom.ac_if;
/* Cancel pending I/O and flush buffers. */
bge_stop(sc);
bge_reset(sc);
bge_chipinit(sc);
/*
* Init the various state machines, ring
* control blocks and firmware.
*/
if (bge_blockinit(sc)) {
printf("%s: initialization failure\n", sc->bge_dev.dv_xname);
splx(s);
return;
}
ifp = &sc->arpcom.ac_if;
/* Specify MRU. */
if (BGE_IS_JUMBO_CAPABLE(sc))
CSR_WRITE_4(sc, BGE_RX_MTU,
BGE_JUMBO_FRAMELEN + ETHER_VLAN_ENCAP_LEN);
else
CSR_WRITE_4(sc, BGE_RX_MTU,
ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN);
/* Load our MAC address. */
m = (u_int16_t *)&sc->arpcom.ac_enaddr[0];
CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0]));
CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2]));
/* Disable hardware decapsulation of vlan frames. */
BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_KEEP_VLAN_DIAG);
/* Program promiscuous mode and multicast filters. */
bge_iff(sc);
/* Init RX ring. */
bge_init_rx_ring_std(sc);
/*
* Workaround for a bug in 5705 ASIC rev A0. Poll the NIC's
* memory to insure that the chip has in fact read the first
* entry of the ring.
*/
if (sc->bge_chipid == BGE_CHIPID_BCM5705_A0) {
u_int32_t v, i;
for (i = 0; i < 10; i++) {
DELAY(20);
v = bge_readmem_ind(sc, BGE_STD_RX_RINGS + 8);
if (v == (MCLBYTES - ETHER_ALIGN))
break;
}
if (i == 10)
printf("%s: 5705 A0 chip failed to load RX ring\n",
sc->bge_dev.dv_xname);
}
/* Init Jumbo RX ring. */
if (BGE_IS_JUMBO_CAPABLE(sc))
bge_init_rx_ring_jumbo(sc);
/* Init our RX return ring index */
sc->bge_rx_saved_considx = 0;
/* Init TX ring. */
bge_init_tx_ring(sc);
/* Turn on transmitter */
BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_ENABLE);
/* Turn on receiver */
BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
CSR_WRITE_4(sc, BGE_MAX_RX_FRAME_LOWAT, 2);
/* Tell firmware we're alive. */
BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
/* Enable host interrupts. */
BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA);
BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR);
CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0);
bge_ifmedia_upd(ifp);
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
splx(s);
timeout_add(&sc->bge_timeout, hz);
}
/*
* Set media options.
*/
int
bge_ifmedia_upd(struct ifnet *ifp)
{
struct bge_softc *sc = ifp->if_softc;
struct mii_data *mii = &sc->bge_mii;
struct ifmedia *ifm = &sc->bge_ifmedia;
/* If this is a 1000baseX NIC, enable the TBI port. */
if (sc->bge_flags & BGE_TBI) {
if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
return (EINVAL);
switch(IFM_SUBTYPE(ifm->ifm_media)) {
case IFM_AUTO:
/*
* The BCM5704 ASIC appears to have a special
* mechanism for programming the autoneg
* advertisement registers in TBI mode.
*/
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5704) {
u_int32_t sgdig;
CSR_WRITE_4(sc, BGE_TX_TBI_AUTONEG, 0);
sgdig = CSR_READ_4(sc, BGE_SGDIG_CFG);
sgdig |= BGE_SGDIGCFG_AUTO|
BGE_SGDIGCFG_PAUSE_CAP|
BGE_SGDIGCFG_ASYM_PAUSE;
CSR_WRITE_4(sc, BGE_SGDIG_CFG,
sgdig|BGE_SGDIGCFG_SEND);
DELAY(5);
CSR_WRITE_4(sc, BGE_SGDIG_CFG, sgdig);
}
break;
case IFM_1000_SX:
if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
BGE_CLRBIT(sc, BGE_MAC_MODE,
BGE_MACMODE_HALF_DUPLEX);
} else {
BGE_SETBIT(sc, BGE_MAC_MODE,
BGE_MACMODE_HALF_DUPLEX);
}
break;
default:
return (EINVAL);
}
/* XXX 802.3x flow control for 1000BASE-SX */
return (0);
}
sc->bge_link_evt++;
if (mii->mii_instance) {
struct mii_softc *miisc;
LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
mii_phy_reset(miisc);
}
mii_mediachg(mii);
return (0);
}
/*
* Report current media status.
*/
void
bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct bge_softc *sc = ifp->if_softc;
struct mii_data *mii = &sc->bge_mii;
if (sc->bge_flags & BGE_TBI) {
ifmr->ifm_status = IFM_AVALID;
ifmr->ifm_active = IFM_ETHER;
if (CSR_READ_4(sc, BGE_MAC_STS) &
BGE_MACSTAT_TBI_PCS_SYNCHED) {
ifmr->ifm_status |= IFM_ACTIVE;
} else {
ifmr->ifm_active |= IFM_NONE;
return;
}
ifmr->ifm_active |= IFM_1000_SX;
if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX)
ifmr->ifm_active |= IFM_HDX;
else
ifmr->ifm_active |= IFM_FDX;
return;
}
mii_pollstat(mii);
ifmr->ifm_status = mii->mii_media_status;
ifmr->ifm_active = (mii->mii_media_active & ~IFM_ETH_FMASK) |
sc->bge_flowflags;
}
int
bge_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
{
struct bge_softc *sc = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *) data;
struct ifaddr *ifa = (struct ifaddr *)data;
int s, error = 0;
struct mii_data *mii;
s = splnet();
if ((error = ether_ioctl(ifp, &sc->arpcom, command, data)) > 0) {
splx(s);
return (error);
}
switch(command) {
case SIOCSIFADDR:
ifp->if_flags |= IFF_UP;
if (!(ifp->if_flags & IFF_RUNNING))
bge_init(sc);
#ifdef INET
if (ifa->ifa_addr->sa_family == AF_INET)
arp_ifinit(&sc->arpcom, ifa);
#endif /* INET */
break;
case SIOCSIFMTU:
if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ifp->if_hardmtu)
error = EINVAL;
else if (ifp->if_mtu != ifr->ifr_mtu)
ifp->if_mtu = ifr->ifr_mtu;
break;
case SIOCSIFFLAGS:
if (ifp->if_flags & IFF_UP) {
if (ifp->if_flags & IFF_RUNNING)
bge_iff(sc);
else
bge_init(sc);
} else {
if (ifp->if_flags & IFF_RUNNING)
bge_stop(sc);
}
sc->bge_if_flags = ifp->if_flags;
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
error = (command == SIOCADDMULTI)
? ether_addmulti(ifr, &sc->arpcom)
: ether_delmulti(ifr, &sc->arpcom);
if (error == ENETRESET) {
if (ifp->if_flags & IFF_RUNNING)
bge_iff(sc);
error = 0;
}
break;
case SIOCSIFMEDIA:
/* XXX Flow control is not supported for 1000BASE-SX */
if (sc->bge_flags & BGE_TBI) {
ifr->ifr_media &= ~IFM_ETH_FMASK;
sc->bge_flowflags = 0;
}
/* Flow control requires full-duplex mode. */
if (IFM_SUBTYPE(ifr->ifr_media) == IFM_AUTO ||
(ifr->ifr_media & IFM_FDX) == 0) {
ifr->ifr_media &= ~IFM_ETH_FMASK;
}
if (IFM_SUBTYPE(ifr->ifr_media) != IFM_AUTO) {
if ((ifr->ifr_media & IFM_ETH_FMASK) == IFM_FLOW) {
/* We can do both TXPAUSE and RXPAUSE. */
ifr->ifr_media |=
IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE;
}
sc->bge_flowflags = ifr->ifr_media & IFM_ETH_FMASK;
}
/* FALLTHROUGH */
case SIOCGIFMEDIA:
if (sc->bge_flags & BGE_TBI) {
error = ifmedia_ioctl(ifp, ifr, &sc->bge_ifmedia,
command);
} else {
mii = &sc->bge_mii;
error = ifmedia_ioctl(ifp, ifr, &mii->mii_media,
command);
}
break;
default:
error = ENOTTY;
break;
}
splx(s);
return (error);
}
void
bge_watchdog(struct ifnet *ifp)
{
struct bge_softc *sc;
sc = ifp->if_softc;
printf("%s: watchdog timeout -- resetting\n", sc->bge_dev.dv_xname);
bge_init(sc);
ifp->if_oerrors++;
}
void
bge_stop_block(struct bge_softc *sc, bus_size_t reg, u_int32_t bit)
{
int i;
BGE_CLRBIT(sc, reg, bit);
for (i = 0; i < BGE_TIMEOUT; i++) {
if ((CSR_READ_4(sc, reg) & bit) == 0)
return;
delay(100);
}
DPRINTFN(5, ("%s: block failed to stop: reg 0x%lx, bit 0x%08x\n",
sc->bge_dev.dv_xname, (u_long) reg, bit));
}
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
void
bge_stop(struct bge_softc *sc)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
struct ifmedia_entry *ifm;
struct mii_data *mii;
int mtmp, itmp;
timeout_del(&sc->bge_timeout);
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
/*
* Disable all of the receiver blocks
*/
bge_stop_block(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
bge_stop_block(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
bge_stop_block(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
if (!(BGE_IS_5705_OR_BEYOND(sc)))
bge_stop_block(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
bge_stop_block(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE);
bge_stop_block(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
bge_stop_block(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE);
/*
* Disable all of the transmit blocks
*/
bge_stop_block(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
bge_stop_block(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
bge_stop_block(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
bge_stop_block(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE);
bge_stop_block(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE);
if (!(BGE_IS_5705_OR_BEYOND(sc)))
bge_stop_block(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
bge_stop_block(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
/*
* Shut down all of the memory managers and related
* state machines.
*/
bge_stop_block(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE);
bge_stop_block(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE);
if (!(BGE_IS_5705_OR_BEYOND(sc)))
bge_stop_block(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
if (!(BGE_IS_5705_OR_BEYOND(sc))) {
bge_stop_block(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE);
bge_stop_block(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
}
/* Disable host interrupts. */
BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR);
CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1);
/*
* Tell firmware we're shutting down.
*/
BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
/* Free the RX lists. */
bge_free_rx_ring_std(sc);
/* Free jumbo RX list. */
if (BGE_IS_JUMBO_CAPABLE(sc))
bge_free_rx_ring_jumbo(sc);
/* Free TX buffers. */
bge_free_tx_ring(sc);
/*
* Isolate/power down the PHY, but leave the media selection
* unchanged so that things will be put back to normal when
* we bring the interface back up.
*/
if (!(sc->bge_flags & BGE_TBI)) {
mii = &sc->bge_mii;
itmp = ifp->if_flags;
ifp->if_flags |= IFF_UP;
ifm = mii->mii_media.ifm_cur;
mtmp = ifm->ifm_media;
ifm->ifm_media = IFM_ETHER|IFM_NONE;
mii_mediachg(mii);
ifm->ifm_media = mtmp;
ifp->if_flags = itmp;
}
sc->bge_tx_saved_considx = BGE_TXCONS_UNSET;
/*
* We can't just call bge_link_upd() cause chip is almost stopped so
* bge_link_upd -> bge_tick_locked -> bge_stats_update sequence may
* lead to hardware deadlock. So we just clearing MAC's link state
* (PHY may still have link UP).
*/
sc->bge_link = 0;
}
/*
* Stop all chip I/O so that the kernel's probe routines don't
* get confused by errant DMAs when rebooting.
*/
void
bge_shutdown(void *xsc)
{
struct bge_softc *sc = (struct bge_softc *)xsc;
bge_stop(sc);
bge_reset(sc);
}
void
bge_link_upd(struct bge_softc *sc)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
struct mii_data *mii = &sc->bge_mii;
u_int32_t link, status;
/* Clear 'pending link event' flag */
sc->bge_link_evt = 0;
/*
* Process link state changes.
* Grrr. The link status word in the status block does
* not work correctly on the BCM5700 rev AX and BX chips,
* according to all available information. Hence, we have
* to enable MII interrupts in order to properly obtain
* async link changes. Unfortunately, this also means that
* we have to read the MAC status register to detect link
* changes, thereby adding an additional register access to
* the interrupt handler.
*
* XXX: perhaps link state detection procedure used for
* BGE_CHIPID_BCM5700_B2 can be used for other BCM5700 revisions.
*/
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5700 &&
sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
status = CSR_READ_4(sc, BGE_MAC_STS);
if (status & BGE_MACSTAT_MI_INTERRUPT) {
timeout_del(&sc->bge_timeout);
bge_tick(sc);
if (!sc->bge_link &&
mii->mii_media_status & IFM_ACTIVE &&
IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
sc->bge_link++;
} else if (sc->bge_link &&
(!(mii->mii_media_status & IFM_ACTIVE) ||
IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
sc->bge_link = 0;
}
/* Clear the interrupt */
CSR_WRITE_4(sc, BGE_MAC_EVT_ENB,
BGE_EVTENB_MI_INTERRUPT);
bge_miibus_readreg(&sc->bge_dev, 1, BRGPHY_MII_ISR);
bge_miibus_writereg(&sc->bge_dev, 1, BRGPHY_MII_IMR,
BRGPHY_INTRS);
}
return;
}
if (sc->bge_flags & BGE_TBI) {
status = CSR_READ_4(sc, BGE_MAC_STS);
if (status & BGE_MACSTAT_TBI_PCS_SYNCHED) {
if (!sc->bge_link) {
sc->bge_link++;
if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5704)
BGE_CLRBIT(sc, BGE_MAC_MODE,
BGE_MACMODE_TBI_SEND_CFGS);
CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF);
status = CSR_READ_4(sc, BGE_MAC_MODE);
ifp->if_link_state =
(status & BGE_MACMODE_HALF_DUPLEX) ?
LINK_STATE_HALF_DUPLEX :
LINK_STATE_FULL_DUPLEX;
if_link_state_change(ifp);
}
} else if (sc->bge_link) {
sc->bge_link = 0;
ifp->if_link_state = LINK_STATE_DOWN;
if_link_state_change(ifp);
}
/* Discard link events for MII/GMII cards if MI auto-polling disabled */
} else if (CSR_READ_4(sc, BGE_MI_MODE) & BGE_MIMODE_AUTOPOLL) {
/*
* Some broken BCM chips have BGE_STATFLAG_LINKSTATE_CHANGED bit
* in status word always set. Workaround this bug by reading
* PHY link status directly.
*/
link = (CSR_READ_4(sc, BGE_MI_STS) & BGE_MISTS_LINK) ? 1 : 0;
if (link != sc->bge_link ||
BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5700) {
timeout_del(&sc->bge_timeout);
bge_tick(sc);
if (!sc->bge_link &&
mii->mii_media_status & IFM_ACTIVE &&
IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE)
sc->bge_link++;
else if (sc->bge_link &&
(!(mii->mii_media_status & IFM_ACTIVE) ||
IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE))
sc->bge_link = 0;
}
}
/* Clear the attention */
CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
BGE_MACSTAT_LINK_CHANGED);
}
void
bge_power(int why, void *xsc)
{
struct bge_softc *sc = (struct bge_softc *)xsc;
struct ifnet *ifp;
if (why == PWR_RESUME) {
ifp = &sc->arpcom.ac_if;
if (ifp->if_flags & IFF_UP) {
bge_init(xsc);
if (ifp->if_flags & IFF_RUNNING)
bge_start(ifp);
}
}
}
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