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u-boot-brain/drivers/net/bcm570x.c
Mike Frysinger c4b8762f11 bcm570x: get mac address from environment 
The environment is the canonical storage location of the mac address, so
we're killing off the global data location and moving everything to
querying the env directly.

Since the address is in the PLM_DEVICE_BLOCK structure already, there is
no need to pass the NodeAddress as a second parameter.  So drop the second
argument to the LM_SetMacAddress() function (and update the tigon3 driver
accordingly).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Ben Warren <biggerbadderben@gmail.com>
2009-03-20 22:39:10 +01:00

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/*
* Broadcom BCM570x Ethernet Driver for U-Boot.
* Support 5701, 5702, 5703, and 5704. Single instance driver.
* Copyright (C) 2002 James F. Dougherty (jfd@broadcom.com)
*/
#include <common.h>
#ifdef CONFIG_BMW
#include <mpc824x.h>
#endif
#include <net.h>
#include "bcm570x_mm.h"
#include "bcm570x_autoneg.h"
#include <pci.h>
#include <malloc.h>
/*
* PCI Registers and definitions.
*/
#define PCI_CMD_MASK 0xffff0000 /* mask to save status bits */
#define PCI_ANY_ID (~0)
/*
* PCI memory base for Ethernet device as well as device Interrupt.
*/
#define BCM570X_MBAR 0x80100000
#define BCM570X_ILINE 1
#define SECOND_USEC 1000000
#define MAX_PACKET_SIZE 1600
#define MAX_UNITS 4
/* Globals to this module */
int initialized = 0;
unsigned int ioBase = 0;
volatile PLM_DEVICE_BLOCK pDevice = NULL; /* 570x softc */
volatile PUM_DEVICE_BLOCK pUmDevice = NULL;
/* Used to pass the full-duplex flag, etc. */
int line_speed[MAX_UNITS] = { 0, 0, 0, 0 };
static int full_duplex[MAX_UNITS] = { 1, 1, 1, 1 };
static int rx_flow_control[MAX_UNITS] = { 0, 0, 0, 0 };
static int tx_flow_control[MAX_UNITS] = { 0, 0, 0, 0 };
static int auto_flow_control[MAX_UNITS] = { 0, 0, 0, 0 };
static int tx_checksum[MAX_UNITS] = { 1, 1, 1, 1 };
static int rx_checksum[MAX_UNITS] = { 1, 1, 1, 1 };
static int auto_speed[MAX_UNITS] = { 1, 1, 1, 1 };
#if JUMBO_FRAMES
/* Jumbo MTU for interfaces. */
static int mtu[MAX_UNITS] = { 0, 0, 0, 0 };
#endif
/* Turn on Wake-on lan for a device unit */
static int enable_wol[MAX_UNITS] = { 0, 0, 0, 0 };
#define TX_DESC_CNT DEFAULT_TX_PACKET_DESC_COUNT
static unsigned int tx_pkt_desc_cnt[MAX_UNITS] =
{ TX_DESC_CNT, TX_DESC_CNT, TX_DESC_CNT, TX_DESC_CNT };
#define RX_DESC_CNT DEFAULT_STD_RCV_DESC_COUNT
static unsigned int rx_std_desc_cnt[MAX_UNITS] =
{ RX_DESC_CNT, RX_DESC_CNT, RX_DESC_CNT, RX_DESC_CNT };
static unsigned int rx_adaptive_coalesce[MAX_UNITS] = { 1, 1, 1, 1 };
#if T3_JUMBO_RCV_RCB_ENTRY_COUNT
#define JBO_DESC_CNT DEFAULT_JUMBO_RCV_DESC_COUNT
static unsigned int rx_jumbo_desc_cnt[MAX_UNITS] =
{ JBO_DESC_CNT, JBO_DESC_CNT, JBO_DESC_CNT, JBO_DESC_CNT };
#endif
#define RX_COAL_TK DEFAULT_RX_COALESCING_TICKS
static unsigned int rx_coalesce_ticks[MAX_UNITS] =
{ RX_COAL_TK, RX_COAL_TK, RX_COAL_TK, RX_COAL_TK };
#define RX_COAL_FM DEFAULT_RX_MAX_COALESCED_FRAMES
static unsigned int rx_max_coalesce_frames[MAX_UNITS] =
{ RX_COAL_FM, RX_COAL_FM, RX_COAL_FM, RX_COAL_FM };
#define TX_COAL_TK DEFAULT_TX_COALESCING_TICKS
static unsigned int tx_coalesce_ticks[MAX_UNITS] =
{ TX_COAL_TK, TX_COAL_TK, TX_COAL_TK, TX_COAL_TK };
#define TX_COAL_FM DEFAULT_TX_MAX_COALESCED_FRAMES
static unsigned int tx_max_coalesce_frames[MAX_UNITS] =
{ TX_COAL_FM, TX_COAL_FM, TX_COAL_FM, TX_COAL_FM };
#define ST_COAL_TK DEFAULT_STATS_COALESCING_TICKS
static unsigned int stats_coalesce_ticks[MAX_UNITS] =
{ ST_COAL_TK, ST_COAL_TK, ST_COAL_TK, ST_COAL_TK };
/*
* Legitimate values for BCM570x device types
*/
typedef enum {
BCM5700VIGIL = 0,
BCM5700A6,
BCM5700T6,
BCM5700A9,
BCM5700T9,
BCM5700,
BCM5701A5,
BCM5701T1,
BCM5701T8,
BCM5701A7,
BCM5701A10,
BCM5701A12,
BCM5701,
BCM5702,
BCM5703,
BCM5703A31,
TC996T,
TC996ST,
TC996SSX,
TC996SX,
TC996BT,
TC997T,
TC997SX,
TC1000T,
TC940BR01,
TC942BR01,
NC6770,
NC7760,
NC7770,
NC7780
} board_t;
/* Chip-Rev names for each device-type */
static struct {
char *name;
} chip_rev[] = {
{
"BCM5700VIGIL"}, {
"BCM5700A6"}, {
"BCM5700T6"}, {
"BCM5700A9"}, {
"BCM5700T9"}, {
"BCM5700"}, {
"BCM5701A5"}, {
"BCM5701T1"}, {
"BCM5701T8"}, {
"BCM5701A7"}, {
"BCM5701A10"}, {
"BCM5701A12"}, {
"BCM5701"}, {
"BCM5702"}, {
"BCM5703"}, {
"BCM5703A31"}, {
"TC996T"}, {
"TC996ST"}, {
"TC996SSX"}, {
"TC996SX"}, {
"TC996BT"}, {
"TC997T"}, {
"TC997SX"}, {
"TC1000T"}, {
"TC940BR01"}, {
"TC942BR01"}, {
"NC6770"}, {
"NC7760"}, {
"NC7770"}, {
"NC7780"}, {
0}
};
/* indexed by board_t, above */
static struct {
char *name;
} board_info[] = {
{
"Broadcom Vigil B5700 1000Base-T"}, {
"Broadcom BCM5700 1000Base-T"}, {
"Broadcom BCM5700 1000Base-SX"}, {
"Broadcom BCM5700 1000Base-SX"}, {
"Broadcom BCM5700 1000Base-T"}, {
"Broadcom BCM5700"}, {
"Broadcom BCM5701 1000Base-T"}, {
"Broadcom BCM5701 1000Base-T"}, {
"Broadcom BCM5701 1000Base-T"}, {
"Broadcom BCM5701 1000Base-SX"}, {
"Broadcom BCM5701 1000Base-T"}, {
"Broadcom BCM5701 1000Base-T"}, {
"Broadcom BCM5701"}, {
"Broadcom BCM5702 1000Base-T"}, {
"Broadcom BCM5703 1000Base-T"}, {
"Broadcom BCM5703 1000Base-SX"}, {
"3Com 3C996 10/100/1000 Server NIC"}, {
"3Com 3C996 10/100/1000 Server NIC"}, {
"3Com 3C996 Gigabit Fiber-SX Server NIC"}, {
"3Com 3C996 Gigabit Fiber-SX Server NIC"}, {
"3Com 3C996B Gigabit Server NIC"}, {
"3Com 3C997 Gigabit Server NIC"}, {
"3Com 3C997 Gigabit Fiber-SX Server NIC"}, {
"3Com 3C1000 Gigabit NIC"}, {
"3Com 3C940 Gigabit LOM (21X21)"}, {
"3Com 3C942 Gigabit LOM (31X31)"}, {
"Compaq NC6770 Gigabit Server Adapter"}, {
"Compaq NC7760 Gigabit Server Adapter"}, {
"Compaq NC7770 Gigabit Server Adapter"}, {
"Compaq NC7780 Gigabit Server Adapter"}, {
0},};
/* PCI Devices which use the 570x chipset */
struct pci_device_table {
unsigned short vendor_id, device_id; /* Vendor/DeviceID */
unsigned short subvendor, subdevice; /* Subsystem ID's or PCI_ANY_ID */
unsigned int class, class_mask; /* (class,subclass,prog-if) triplet */
unsigned long board_id; /* Data private to the driver */
int io_size, min_latency;
} bcm570xDevices[] = {
{
0x14e4, 0x1644, 0x1014, 0x0277, 0, 0, BCM5700VIGIL, 128, 32}, {
0x14e4, 0x1644, 0x14e4, 0x1644, 0, 0, BCM5700A6, 128, 32}, {
0x14e4, 0x1644, 0x14e4, 0x2, 0, 0, BCM5700T6, 128, 32}, {
0x14e4, 0x1644, 0x14e4, 0x3, 0, 0, BCM5700A9, 128, 32}, {
0x14e4, 0x1644, 0x14e4, 0x4, 0, 0, BCM5700T9, 128, 32}, {
0x14e4, 0x1644, 0x1028, 0xd1, 0, 0, BCM5700, 128, 32}, {
0x14e4, 0x1644, 0x1028, 0x0106, 0, 0, BCM5700, 128, 32}, {
0x14e4, 0x1644, 0x1028, 0x0109, 0, 0, BCM5700, 128, 32}, {
0x14e4, 0x1644, 0x1028, 0x010a, 0, 0, BCM5700, 128, 32}, {
0x14e4, 0x1644, 0x10b7, 0x1000, 0, 0, TC996T, 128, 32}, {
0x14e4, 0x1644, 0x10b7, 0x1001, 0, 0, TC996ST, 128, 32}, {
0x14e4, 0x1644, 0x10b7, 0x1002, 0, 0, TC996SSX, 128, 32}, {
0x14e4, 0x1644, 0x10b7, 0x1003, 0, 0, TC997T, 128, 32}, {
0x14e4, 0x1644, 0x10b7, 0x1005, 0, 0, TC997SX, 128, 32}, {
0x14e4, 0x1644, 0x10b7, 0x1008, 0, 0, TC942BR01, 128, 32}, {
0x14e4, 0x1644, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5700, 128, 32}, {
0x14e4, 0x1645, 0x14e4, 1, 0, 0, BCM5701A5, 128, 32}, {
0x14e4, 0x1645, 0x14e4, 5, 0, 0, BCM5701T1, 128, 32}, {
0x14e4, 0x1645, 0x14e4, 6, 0, 0, BCM5701T8, 128, 32}, {
0x14e4, 0x1645, 0x14e4, 7, 0, 0, BCM5701A7, 128, 32}, {
0x14e4, 0x1645, 0x14e4, 8, 0, 0, BCM5701A10, 128, 32}, {
0x14e4, 0x1645, 0x14e4, 0x8008, 0, 0, BCM5701A12, 128, 32}, {
0x14e4, 0x1645, 0x0e11, 0xc1, 0, 0, NC6770, 128, 32}, {
0x14e4, 0x1645, 0x0e11, 0x7c, 0, 0, NC7770, 128, 32}, {
0x14e4, 0x1645, 0x0e11, 0x85, 0, 0, NC7780, 128, 32}, {
0x14e4, 0x1645, 0x1028, 0x0121, 0, 0, BCM5701, 128, 32}, {
0x14e4, 0x1645, 0x10b7, 0x1004, 0, 0, TC996SX, 128, 32}, {
0x14e4, 0x1645, 0x10b7, 0x1006, 0, 0, TC996BT, 128, 32}, {
0x14e4, 0x1645, 0x10b7, 0x1007, 0, 0, TC1000T, 128, 32}, {
0x14e4, 0x1645, 0x10b7, 0x1008, 0, 0, TC940BR01, 128, 32}, {
0x14e4, 0x1645, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5701, 128, 32}, {
0x14e4, 0x1646, 0x14e4, 0x8009, 0, 0, BCM5702, 128, 32}, {
0x14e4, 0x1646, 0x0e11, 0xbb, 0, 0, NC7760, 128, 32}, {
0x14e4, 0x1646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5702, 128, 32}, {
0x14e4, 0x16a6, 0x14e4, 0x8009, 0, 0, BCM5702, 128, 32}, {
0x14e4, 0x16a6, 0x0e11, 0xbb, 0, 0, NC7760, 128, 32}, {
0x14e4, 0x16a6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5702, 128, 32}, {
0x14e4, 0x1647, 0x14e4, 0x0009, 0, 0, BCM5703, 128, 32}, {
0x14e4, 0x1647, 0x14e4, 0x000a, 0, 0, BCM5703A31, 128, 32}, {
0x14e4, 0x1647, 0x14e4, 0x000b, 0, 0, BCM5703, 128, 32}, {
0x14e4, 0x1647, 0x14e4, 0x800a, 0, 0, BCM5703, 128, 32}, {
0x14e4, 0x1647, 0x0e11, 0x9a, 0, 0, NC7770, 128, 32}, {
0x14e4, 0x1647, 0x0e11, 0x99, 0, 0, NC7780, 128, 32}, {
0x14e4, 0x1647, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5703, 128, 32}, {
0x14e4, 0x16a7, 0x14e4, 0x0009, 0, 0, BCM5703, 128, 32}, {
0x14e4, 0x16a7, 0x14e4, 0x000a, 0, 0, BCM5703A31, 128, 32}, {
0x14e4, 0x16a7, 0x14e4, 0x000b, 0, 0, BCM5703, 128, 32}, {
0x14e4, 0x16a7, 0x14e4, 0x800a, 0, 0, BCM5703, 128, 32}, {
0x14e4, 0x16a7, 0x0e11, 0x9a, 0, 0, NC7770, 128, 32}, {
0x14e4, 0x16a7, 0x0e11, 0x99, 0, 0, NC7780, 128, 32}, {
0x14e4, 0x16a7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5703, 128, 32}
};
#define n570xDevices (sizeof(bcm570xDevices)/sizeof(bcm570xDevices[0]))
/*
* Allocate a packet buffer from the bcm570x packet pool.
*/
void *bcm570xPktAlloc (int u, int pksize)
{
return malloc (pksize);
}
/*
* Free a packet previously allocated from the bcm570x packet
* buffer pool.
*/
void bcm570xPktFree (int u, void *p)
{
free (p);
}
int bcm570xReplenishRxBuffers (PUM_DEVICE_BLOCK pUmDevice)
{
PLM_PACKET pPacket;
PUM_PACKET pUmPacket;
void *skb;
int queue_rx = 0;
int ret = 0;
while ((pUmPacket = (PUM_PACKET)
QQ_PopHead (&pUmDevice->rx_out_of_buf_q.Container)) != 0) {
pPacket = (PLM_PACKET) pUmPacket;
/* reuse an old skb */
if (pUmPacket->skbuff) {
QQ_PushTail (&pDevice->RxPacketFreeQ.Container,
pPacket);
queue_rx = 1;
continue;
}
if ((skb = bcm570xPktAlloc (pUmDevice->index,
pPacket->u.Rx.RxBufferSize + 2)) ==
0) {
QQ_PushHead (&pUmDevice->rx_out_of_buf_q.Container,
pPacket);
printf ("NOTICE: Out of RX memory.\n");
ret = 1;
break;
}
pUmPacket->skbuff = skb;
QQ_PushTail (&pDevice->RxPacketFreeQ.Container, pPacket);
queue_rx = 1;
}
if (queue_rx) {
LM_QueueRxPackets (pDevice);
}
return ret;
}
/*
* Probe, Map, and Init 570x device.
*/
int eth_init (bd_t * bis)
{
int i, rv, devFound = FALSE;
pci_dev_t devbusfn;
unsigned short status;
/* Find PCI device, if it exists, configure ... */
for (i = 0; i < n570xDevices; i++) {
devbusfn = pci_find_device (bcm570xDevices[i].vendor_id,
bcm570xDevices[i].device_id, 0);
if (devbusfn == -1) {
continue; /* No device of that vendor/device ID */
} else {
/* Set ILINE */
pci_write_config_byte (devbusfn,
PCI_INTERRUPT_LINE,
BCM570X_ILINE);
/*
* 0x10 - 0x14 define one 64-bit MBAR.
* 0x14 is the higher-order address bits of the BAR.
*/
pci_write_config_dword (devbusfn,
PCI_BASE_ADDRESS_1, 0);
ioBase = BCM570X_MBAR;
pci_write_config_dword (devbusfn,
PCI_BASE_ADDRESS_0, ioBase);
/*
* Enable PCI memory, IO, and Master -- don't
* reset any status bits in doing so.
*/
pci_read_config_word (devbusfn, PCI_COMMAND, &status);
status |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
pci_write_config_word (devbusfn, PCI_COMMAND, status);
printf
("\n%s: bus %d, device %d, function %d: MBAR=0x%x\n",
board_info[bcm570xDevices[i].board_id].name,
PCI_BUS (devbusfn), PCI_DEV (devbusfn),
PCI_FUNC (devbusfn), ioBase);
/* Allocate once, but always clear on init */
if (!pDevice) {
pDevice = malloc (sizeof (UM_DEVICE_BLOCK));
pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
memset (pDevice, 0x0, sizeof (UM_DEVICE_BLOCK));
}
/* Configure pci dev structure */
pUmDevice->pdev = devbusfn;
pUmDevice->index = 0;
pUmDevice->tx_pkt = 0;
pUmDevice->rx_pkt = 0;
devFound = TRUE;
break;
}
}
if (!devFound) {
printf
("eth_init: FAILURE: no BCM570x Ethernet devices found.\n");
return -1;
}
/* Setup defaults for chip */
pDevice->TaskToOffload = LM_TASK_OFFLOAD_NONE;
if (pDevice->ChipRevId == T3_CHIP_ID_5700_B0) {
pDevice->TaskToOffload = LM_TASK_OFFLOAD_NONE;
} else {
if (rx_checksum[i]) {
pDevice->TaskToOffload |=
LM_TASK_OFFLOAD_RX_TCP_CHECKSUM |
LM_TASK_OFFLOAD_RX_UDP_CHECKSUM;
}
if (tx_checksum[i]) {
pDevice->TaskToOffload |=
LM_TASK_OFFLOAD_TX_TCP_CHECKSUM |
LM_TASK_OFFLOAD_TX_UDP_CHECKSUM;
pDevice->NoTxPseudoHdrChksum = TRUE;
}
}
/* Set Device PCI Memory base address */
pDevice->pMappedMemBase = (PLM_UINT8) ioBase;
/* Pull down adapter info */
if ((rv = LM_GetAdapterInfo (pDevice)) != LM_STATUS_SUCCESS) {
printf ("bcm570xEnd: LM_GetAdapterInfo failed: rv=%d!\n", rv);
return -2;
}
/* Lock not needed */
pUmDevice->do_global_lock = 0;
if (T3_ASIC_REV (pUmDevice->lm_dev.ChipRevId) == T3_ASIC_REV_5700) {
/* The 5700 chip works best without interleaved register */
/* accesses on certain machines. */
pUmDevice->do_global_lock = 1;
}
/* Setup timer delays */
if (T3_ASIC_REV (pDevice->ChipRevId) == T3_ASIC_REV_5701) {
pDevice->UseTaggedStatus = TRUE;
pUmDevice->timer_interval = CONFIG_SYS_HZ;
} else {
pUmDevice->timer_interval = CONFIG_SYS_HZ / 50;
}
/* Grab name .... */
pUmDevice->name =
(char *)malloc (strlen (board_info[bcm570xDevices[i].board_id].name)
+ 1);
strcpy (pUmDevice->name, board_info[bcm570xDevices[i].board_id].name);
eth_getenv_enetaddr("ethaddr", pDevice->NodeAddress);
LM_SetMacAddress (pDevice);
/* Init queues .. */
QQ_InitQueue (&pUmDevice->rx_out_of_buf_q.Container,
MAX_RX_PACKET_DESC_COUNT);
pUmDevice->rx_last_cnt = pUmDevice->tx_last_cnt = 0;
/* delay for 4 seconds */
pUmDevice->delayed_link_ind = (4 * CONFIG_SYS_HZ) / pUmDevice->timer_interval;
pUmDevice->adaptive_expiry = CONFIG_SYS_HZ / pUmDevice->timer_interval;
/* Sometimes we get spurious ints. after reset when link is down. */
/* This field tells the isr to service the int. even if there is */
/* no status block update. */
pUmDevice->adapter_just_inited =
(3 * CONFIG_SYS_HZ) / pUmDevice->timer_interval;
/* Initialize 570x */
if (LM_InitializeAdapter (pDevice) != LM_STATUS_SUCCESS) {
printf ("ERROR: Adapter initialization failed.\n");
return ERROR;
}
/* Enable chip ISR */
LM_EnableInterrupt (pDevice);
/* Clear MC table */
LM_MulticastClear (pDevice);
/* Enable Multicast */
LM_SetReceiveMask (pDevice,
pDevice->ReceiveMask | LM_ACCEPT_ALL_MULTICAST);
pUmDevice->opened = 1;
pUmDevice->tx_full = 0;
pUmDevice->tx_pkt = 0;
pUmDevice->rx_pkt = 0;
printf ("eth%d: %s @0x%lx,",
pDevice->index, pUmDevice->name, (unsigned long)ioBase);
printf ("node addr ");
for (i = 0; i < 6; i++) {
printf ("%2.2x", pDevice->NodeAddress[i]);
}
printf ("\n");
printf ("eth%d: ", pDevice->index);
printf ("%s with ", chip_rev[bcm570xDevices[i].board_id].name);
if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5400_PHY_ID)
printf ("Broadcom BCM5400 Copper ");
else if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5401_PHY_ID)
printf ("Broadcom BCM5401 Copper ");
else if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5411_PHY_ID)
printf ("Broadcom BCM5411 Copper ");
else if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5701_PHY_ID)
printf ("Broadcom BCM5701 Integrated Copper ");
else if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5703_PHY_ID)
printf ("Broadcom BCM5703 Integrated Copper ");
else if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM8002_PHY_ID)
printf ("Broadcom BCM8002 SerDes ");
else if (pDevice->EnableTbi)
printf ("Agilent HDMP-1636 SerDes ");
else
printf ("Unknown ");
printf ("transceiver found\n");
printf ("eth%d: %s, MTU: %d,",
pDevice->index, pDevice->BusSpeedStr, 1500);
if ((pDevice->ChipRevId != T3_CHIP_ID_5700_B0) && rx_checksum[i])
printf ("Rx Checksum ON\n");
else
printf ("Rx Checksum OFF\n");
initialized++;
return 0;
}
/* Ethernet Interrupt service routine */
void eth_isr (void)
{
LM_UINT32 oldtag, newtag;
int i;
pUmDevice->interrupt = 1;
if (pDevice->UseTaggedStatus) {
if ((pDevice->pStatusBlkVirt->Status & STATUS_BLOCK_UPDATED) ||
pUmDevice->adapter_just_inited) {
MB_REG_WR (pDevice, Mailbox.Interrupt[0].Low, 1);
oldtag = pDevice->pStatusBlkVirt->StatusTag;
for (i = 0;; i++) {
pDevice->pStatusBlkVirt->Status &=
~STATUS_BLOCK_UPDATED;
LM_ServiceInterrupts (pDevice);
newtag = pDevice->pStatusBlkVirt->StatusTag;
if ((newtag == oldtag) || (i > 50)) {
MB_REG_WR (pDevice,
Mailbox.Interrupt[0].Low,
newtag << 24);
if (pDevice->UndiFix) {
REG_WR (pDevice, Grc.LocalCtrl,
pDevice->
GrcLocalCtrl | 0x2);
}
break;
}
oldtag = newtag;
}
}
} else {
while (pDevice->pStatusBlkVirt->Status & STATUS_BLOCK_UPDATED) {
unsigned int dummy;
pDevice->pMemView->Mailbox.Interrupt[0].Low = 1;
pDevice->pStatusBlkVirt->Status &=
~STATUS_BLOCK_UPDATED;
LM_ServiceInterrupts (pDevice);
pDevice->pMemView->Mailbox.Interrupt[0].Low = 0;
dummy = pDevice->pMemView->Mailbox.Interrupt[0].Low;
}
}
/* Allocate new RX buffers */
if (QQ_GetEntryCnt (&pUmDevice->rx_out_of_buf_q.Container)) {
bcm570xReplenishRxBuffers (pUmDevice);
}
/* Queue packets */
if (QQ_GetEntryCnt (&pDevice->RxPacketFreeQ.Container)) {
LM_QueueRxPackets (pDevice);
}
if (pUmDevice->tx_queued) {
pUmDevice->tx_queued = 0;
}
if (pUmDevice->tx_full) {
if (pDevice->LinkStatus != LM_STATUS_LINK_DOWN) {
printf
("NOTICE: tx was previously blocked, restarting MUX\n");
pUmDevice->tx_full = 0;
}
}
pUmDevice->interrupt = 0;
}
int eth_send (volatile void *packet, int length)
{
int status = 0;
#if ET_DEBUG
unsigned char *ptr = (unsigned char *)packet;
#endif
PLM_PACKET pPacket;
PUM_PACKET pUmPacket;
/* Link down, return */
while (pDevice->LinkStatus == LM_STATUS_LINK_DOWN) {
#if 0
printf ("eth%d: link down - check cable or link partner.\n",
pUmDevice->index);
#endif
eth_isr ();
/* Wait to see link for one-half a second before sending ... */
udelay (1500000);
}
/* Clear sent flag */
pUmDevice->tx_pkt = 0;
/* Previously blocked */
if (pUmDevice->tx_full) {
printf ("eth%d: tx blocked.\n", pUmDevice->index);
return 0;
}
pPacket = (PLM_PACKET)
QQ_PopHead (&pDevice->TxPacketFreeQ.Container);
if (pPacket == 0) {
pUmDevice->tx_full = 1;
printf ("bcm570xEndSend: TX full!\n");
return 0;
}
if (pDevice->SendBdLeft.counter == 0) {
pUmDevice->tx_full = 1;
printf ("bcm570xEndSend: no more TX descriptors!\n");
QQ_PushHead (&pDevice->TxPacketFreeQ.Container, pPacket);
return 0;
}
if (length <= 0) {
printf ("eth: bad packet size: %d\n", length);
goto out;
}
/* Get packet buffers and fragment list */
pUmPacket = (PUM_PACKET) pPacket;
/* Single DMA Descriptor transmit.
* Fragments may be provided, but one DMA descriptor max is
* used to send the packet.
*/
if (MM_CoalesceTxBuffer (pDevice, pPacket) != LM_STATUS_SUCCESS) {
if (pUmPacket->skbuff == NULL) {
/* Packet was discarded */
printf ("TX: failed (1)\n");
status = 1;
} else {
printf ("TX: failed (2)\n");
status = 2;
}
QQ_PushHead (&pDevice->TxPacketFreeQ.Container, pPacket);
return status;
}
/* Copy packet to DMA buffer */
memset (pUmPacket->skbuff, 0x0, MAX_PACKET_SIZE);
memcpy ((void *)pUmPacket->skbuff, (void *)packet, length);
pPacket->PacketSize = length;
pPacket->Flags |= SND_BD_FLAG_END | SND_BD_FLAG_COAL_NOW;
pPacket->u.Tx.FragCount = 1;
/* We've already provided a frame ready for transmission */
pPacket->Flags &= ~SND_BD_FLAG_TCP_UDP_CKSUM;
if (LM_SendPacket (pDevice, pPacket) == LM_STATUS_FAILURE) {
/*
* A lower level send failure will push the packet descriptor back
* in the free queue, so just deal with the VxWorks clusters.
*/
if (pUmPacket->skbuff == NULL) {
printf ("TX failed (1)!\n");
/* Packet was discarded */
status = 3;
} else {
/* A resource problem ... */
printf ("TX failed (2)!\n");
status = 4;
}
if (QQ_GetEntryCnt (&pDevice->TxPacketFreeQ.Container) == 0) {
printf ("TX: emptyQ!\n");
pUmDevice->tx_full = 1;
}
}
while (pUmDevice->tx_pkt == 0) {
/* Service TX */
eth_isr ();
}
#if ET_DEBUG
printf ("eth_send: 0x%x, %d bytes\n"
"[%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x] ...\n",
(int)pPacket, length,
ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5],
ptr[6], ptr[7], ptr[8], ptr[9], ptr[10], ptr[11], ptr[12],
ptr[13], ptr[14], ptr[15]);
#endif
pUmDevice->tx_pkt = 0;
QQ_PushHead (&pDevice->TxPacketFreeQ.Container, pPacket);
/* Done with send */
out:
return status;
}
/* Ethernet receive */
int eth_rx (void)
{
PLM_PACKET pPacket = NULL;
PUM_PACKET pUmPacket = NULL;
void *skb;
int size = 0;
while (TRUE) {
bcm570x_service_isr:
/* Pull down packet if it is there */
eth_isr ();
/* Indicate RX packets called */
if (pUmDevice->rx_pkt) {
/* printf("eth_rx: got a packet...\n"); */
pUmDevice->rx_pkt = 0;
} else {
/* printf("eth_rx: waiting for packet...\n"); */
goto bcm570x_service_isr;
}
pPacket = (PLM_PACKET)
QQ_PopHead (&pDevice->RxPacketReceivedQ.Container);
if (pPacket == 0) {
printf ("eth_rx: empty packet!\n");
goto bcm570x_service_isr;
}
pUmPacket = (PUM_PACKET) pPacket;
#if ET_DEBUG
printf ("eth_rx: packet @0x%x\n", (int)pPacket);
#endif
/* If the packet generated an error, reuse buffer */
if ((pPacket->PacketStatus != LM_STATUS_SUCCESS) ||
((size = pPacket->PacketSize) > pDevice->RxMtu)) {
/* reuse skb */
QQ_PushTail (&pDevice->RxPacketFreeQ.Container,
pPacket);
printf ("eth_rx: error in packet dma!\n");
goto bcm570x_service_isr;
}
/* Set size and address */
skb = pUmPacket->skbuff;
size = pPacket->PacketSize;
/* Pass the packet up to the protocol
* layers.
*/
NetReceive (skb, size);
/* Free packet buffer */
bcm570xPktFree (pUmDevice->index, skb);
pUmPacket->skbuff = NULL;
/* Reuse SKB */
QQ_PushTail (&pDevice->RxPacketFreeQ.Container, pPacket);
return 0; /* Got a packet, bail ... */
}
return size;
}
/* Shut down device */
void eth_halt (void)
{
int i;
if (initialized)
if (pDevice && pUmDevice && pUmDevice->opened) {
printf ("\neth%d:%s,", pUmDevice->index,
pUmDevice->name);
printf ("HALT,");
/* stop device */
LM_Halt (pDevice);
printf ("POWER DOWN,");
LM_SetPowerState (pDevice, LM_POWER_STATE_D3);
/* Free the memory allocated by the device in tigon3 */
for (i = 0; i < pUmDevice->mem_list_num; i++) {
if (pUmDevice->mem_list[i]) {
/* sanity check */
if (pUmDevice->dma_list[i]) { /* cache-safe memory */
free (pUmDevice->mem_list[i]);
} else {
free (pUmDevice->mem_list[i]); /* normal memory */
}
}
}
pUmDevice->opened = 0;
free (pDevice);
pDevice = NULL;
pUmDevice = NULL;
initialized = 0;
printf ("done - offline.\n");
}
}
/*
*
* Middle Module: Interface between the HW driver (tigon3 modules) and
* the native (SENS) driver. These routines implement the system
* interface for tigon3 on VxWorks.
*/
/* Middle module dependency - size of a packet descriptor */
int MM_Packet_Desc_Size = sizeof (UM_PACKET);
LM_STATUS
MM_ReadConfig32 (PLM_DEVICE_BLOCK pDevice,
LM_UINT32 Offset, LM_UINT32 * pValue32)
{
UM_DEVICE_BLOCK *pUmDevice;
pUmDevice = (UM_DEVICE_BLOCK *) pDevice;
pci_read_config_dword (pUmDevice->pdev, Offset, (u32 *) pValue32);
return LM_STATUS_SUCCESS;
}
LM_STATUS
MM_WriteConfig32 (PLM_DEVICE_BLOCK pDevice, LM_UINT32 Offset, LM_UINT32 Value32)
{
UM_DEVICE_BLOCK *pUmDevice;
pUmDevice = (UM_DEVICE_BLOCK *) pDevice;
pci_write_config_dword (pUmDevice->pdev, Offset, Value32);
return LM_STATUS_SUCCESS;
}
LM_STATUS
MM_ReadConfig16 (PLM_DEVICE_BLOCK pDevice,
LM_UINT32 Offset, LM_UINT16 * pValue16)
{
UM_DEVICE_BLOCK *pUmDevice;
pUmDevice = (UM_DEVICE_BLOCK *) pDevice;
pci_read_config_word (pUmDevice->pdev, Offset, (u16 *) pValue16);
return LM_STATUS_SUCCESS;
}
LM_STATUS
MM_WriteConfig16 (PLM_DEVICE_BLOCK pDevice, LM_UINT32 Offset, LM_UINT16 Value16)
{
UM_DEVICE_BLOCK *pUmDevice;
pUmDevice = (UM_DEVICE_BLOCK *) pDevice;
pci_write_config_word (pUmDevice->pdev, Offset, Value16);
return LM_STATUS_SUCCESS;
}
LM_STATUS
MM_AllocateSharedMemory (PLM_DEVICE_BLOCK pDevice, LM_UINT32 BlockSize,
PLM_VOID * pMemoryBlockVirt,
PLM_PHYSICAL_ADDRESS pMemoryBlockPhy, LM_BOOL Cached)
{
PLM_VOID pvirt;
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
dma_addr_t mapping;
pvirt = malloc (BlockSize);
mapping = (dma_addr_t) (pvirt);
if (!pvirt)
return LM_STATUS_FAILURE;
pUmDevice->mem_list[pUmDevice->mem_list_num] = pvirt;
pUmDevice->dma_list[pUmDevice->mem_list_num] = mapping;
pUmDevice->mem_size_list[pUmDevice->mem_list_num++] = BlockSize;
memset (pvirt, 0, BlockSize);
*pMemoryBlockVirt = (PLM_VOID) pvirt;
MM_SetAddr (pMemoryBlockPhy, (dma_addr_t) mapping);
return LM_STATUS_SUCCESS;
}
LM_STATUS
MM_AllocateMemory (PLM_DEVICE_BLOCK pDevice, LM_UINT32 BlockSize,
PLM_VOID * pMemoryBlockVirt)
{
PLM_VOID pvirt;
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
pvirt = malloc (BlockSize);
if (!pvirt)
return LM_STATUS_FAILURE;
pUmDevice->mem_list[pUmDevice->mem_list_num] = pvirt;
pUmDevice->dma_list[pUmDevice->mem_list_num] = 0;
pUmDevice->mem_size_list[pUmDevice->mem_list_num++] = BlockSize;
memset (pvirt, 0, BlockSize);
*pMemoryBlockVirt = pvirt;
return LM_STATUS_SUCCESS;
}
LM_STATUS MM_MapMemBase (PLM_DEVICE_BLOCK pDevice)
{
printf ("BCM570x PCI Memory base address @0x%x\n",
(unsigned int)pDevice->pMappedMemBase);
return LM_STATUS_SUCCESS;
}
LM_STATUS MM_InitializeUmPackets (PLM_DEVICE_BLOCK pDevice)
{
int i;
void *skb;
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
PUM_PACKET pUmPacket = NULL;
PLM_PACKET pPacket = NULL;
for (i = 0; i < pDevice->RxPacketDescCnt; i++) {
pPacket = QQ_PopHead (&pDevice->RxPacketFreeQ.Container);
pUmPacket = (PUM_PACKET) pPacket;
if (pPacket == 0) {
printf ("MM_InitializeUmPackets: Bad RxPacketFreeQ\n");
}
skb = bcm570xPktAlloc (pUmDevice->index,
pPacket->u.Rx.RxBufferSize + 2);
if (skb == 0) {
pUmPacket->skbuff = 0;
QQ_PushTail (&pUmDevice->rx_out_of_buf_q.Container,
pPacket);
printf ("MM_InitializeUmPackets: out of buffer.\n");
continue;
}
pUmPacket->skbuff = skb;
QQ_PushTail (&pDevice->RxPacketFreeQ.Container, pPacket);
}
pUmDevice->rx_low_buf_thresh = pDevice->RxPacketDescCnt / 8;
return LM_STATUS_SUCCESS;
}
LM_STATUS MM_GetConfig (PLM_DEVICE_BLOCK pDevice)
{
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
int index = pDevice->index;
if (auto_speed[index] == 0)
pDevice->DisableAutoNeg = TRUE;
else
pDevice->DisableAutoNeg = FALSE;
if (line_speed[index] == 0) {
pDevice->RequestedMediaType = LM_REQUESTED_MEDIA_TYPE_AUTO;
pDevice->DisableAutoNeg = FALSE;
} else {
if (line_speed[index] == 1000) {
if (pDevice->EnableTbi) {
pDevice->RequestedMediaType =
LM_REQUESTED_MEDIA_TYPE_FIBER_1000MBPS_FULL_DUPLEX;
} else if (full_duplex[index]) {
pDevice->RequestedMediaType =
LM_REQUESTED_MEDIA_TYPE_UTP_1000MBPS_FULL_DUPLEX;
} else {
pDevice->RequestedMediaType =
LM_REQUESTED_MEDIA_TYPE_UTP_1000MBPS;
}
if (!pDevice->EnableTbi)
pDevice->DisableAutoNeg = FALSE;
} else if (line_speed[index] == 100) {
if (full_duplex[index]) {
pDevice->RequestedMediaType =
LM_REQUESTED_MEDIA_TYPE_UTP_100MBPS_FULL_DUPLEX;
} else {
pDevice->RequestedMediaType =
LM_REQUESTED_MEDIA_TYPE_UTP_100MBPS;
}
} else if (line_speed[index] == 10) {
if (full_duplex[index]) {
pDevice->RequestedMediaType =
LM_REQUESTED_MEDIA_TYPE_UTP_10MBPS_FULL_DUPLEX;
} else {
pDevice->RequestedMediaType =
LM_REQUESTED_MEDIA_TYPE_UTP_10MBPS;
}
} else {
pDevice->RequestedMediaType =
LM_REQUESTED_MEDIA_TYPE_AUTO;
pDevice->DisableAutoNeg = FALSE;
}
}
pDevice->FlowControlCap = 0;
if (rx_flow_control[index] != 0) {
pDevice->FlowControlCap |= LM_FLOW_CONTROL_RECEIVE_PAUSE;
}
if (tx_flow_control[index] != 0) {
pDevice->FlowControlCap |= LM_FLOW_CONTROL_TRANSMIT_PAUSE;
}
if ((auto_flow_control[index] != 0) &&
(pDevice->DisableAutoNeg == FALSE)) {
pDevice->FlowControlCap |= LM_FLOW_CONTROL_AUTO_PAUSE;
if ((tx_flow_control[index] == 0) &&
(rx_flow_control[index] == 0)) {
pDevice->FlowControlCap |=
LM_FLOW_CONTROL_TRANSMIT_PAUSE |
LM_FLOW_CONTROL_RECEIVE_PAUSE;
}
}
/* Default MTU for now */
pUmDevice->mtu = 1500;
#if T3_JUMBO_RCV_RCB_ENTRY_COUNT
if (pUmDevice->mtu > 1500) {
pDevice->RxMtu = pUmDevice->mtu;
pDevice->RxJumboDescCnt = DEFAULT_JUMBO_RCV_DESC_COUNT;
} else {
pDevice->RxJumboDescCnt = 0;
}
pDevice->RxJumboDescCnt = rx_jumbo_desc_cnt[index];
#else
pDevice->RxMtu = pUmDevice->mtu;
#endif
if (T3_ASIC_REV (pDevice->ChipRevId) == T3_ASIC_REV_5701) {
pDevice->UseTaggedStatus = TRUE;
pUmDevice->timer_interval = CONFIG_SYS_HZ;
} else {
pUmDevice->timer_interval = CONFIG_SYS_HZ / 50;
}
pDevice->TxPacketDescCnt = tx_pkt_desc_cnt[index];
pDevice->RxStdDescCnt = rx_std_desc_cnt[index];
/* Note: adaptive coalescence really isn't adaptive in this driver */
pUmDevice->rx_adaptive_coalesce = rx_adaptive_coalesce[index];
if (!pUmDevice->rx_adaptive_coalesce) {
pDevice->RxCoalescingTicks = rx_coalesce_ticks[index];
if (pDevice->RxCoalescingTicks > MAX_RX_COALESCING_TICKS)
pDevice->RxCoalescingTicks = MAX_RX_COALESCING_TICKS;
pUmDevice->rx_curr_coalesce_ticks = pDevice->RxCoalescingTicks;
pDevice->RxMaxCoalescedFrames = rx_max_coalesce_frames[index];
if (pDevice->RxMaxCoalescedFrames > MAX_RX_MAX_COALESCED_FRAMES)
pDevice->RxMaxCoalescedFrames =
MAX_RX_MAX_COALESCED_FRAMES;
pUmDevice->rx_curr_coalesce_frames =
pDevice->RxMaxCoalescedFrames;
pDevice->StatsCoalescingTicks = stats_coalesce_ticks[index];
if (pDevice->StatsCoalescingTicks > MAX_STATS_COALESCING_TICKS)
pDevice->StatsCoalescingTicks =
MAX_STATS_COALESCING_TICKS;
} else {
pUmDevice->rx_curr_coalesce_frames =
DEFAULT_RX_MAX_COALESCED_FRAMES;
pUmDevice->rx_curr_coalesce_ticks = DEFAULT_RX_COALESCING_TICKS;
}
pDevice->TxCoalescingTicks = tx_coalesce_ticks[index];
if (pDevice->TxCoalescingTicks > MAX_TX_COALESCING_TICKS)
pDevice->TxCoalescingTicks = MAX_TX_COALESCING_TICKS;
pDevice->TxMaxCoalescedFrames = tx_max_coalesce_frames[index];
if (pDevice->TxMaxCoalescedFrames > MAX_TX_MAX_COALESCED_FRAMES)
pDevice->TxMaxCoalescedFrames = MAX_TX_MAX_COALESCED_FRAMES;
if (enable_wol[index]) {
pDevice->WakeUpModeCap = LM_WAKE_UP_MODE_MAGIC_PACKET;
pDevice->WakeUpMode = LM_WAKE_UP_MODE_MAGIC_PACKET;
}
pDevice->NicSendBd = TRUE;
/* Don't update status blocks during interrupt */
pDevice->RxCoalescingTicksDuringInt = 0;
pDevice->TxCoalescingTicksDuringInt = 0;
return LM_STATUS_SUCCESS;
}
LM_STATUS MM_StartTxDma (PLM_DEVICE_BLOCK pDevice, PLM_PACKET pPacket)
{
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
printf ("Start TX DMA: dev=%d packet @0x%x\n",
(int)pUmDevice->index, (unsigned int)pPacket);
return LM_STATUS_SUCCESS;
}
LM_STATUS MM_CompleteTxDma (PLM_DEVICE_BLOCK pDevice, PLM_PACKET pPacket)
{
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
printf ("Complete TX DMA: dev=%d packet @0x%x\n",
(int)pUmDevice->index, (unsigned int)pPacket);
return LM_STATUS_SUCCESS;
}
LM_STATUS MM_IndicateStatus (PLM_DEVICE_BLOCK pDevice, LM_STATUS Status)
{
char buf[128];
char lcd[4];
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
LM_FLOW_CONTROL flow_control;
pUmDevice->delayed_link_ind = 0;
memset (lcd, 0x0, 4);
if (Status == LM_STATUS_LINK_DOWN) {
sprintf (buf, "eth%d: %s: NIC Link is down\n",
pUmDevice->index, pUmDevice->name);
lcd[0] = 'L';
lcd[1] = 'N';
lcd[2] = 'K';
lcd[3] = '?';
} else if (Status == LM_STATUS_LINK_ACTIVE) {
sprintf (buf, "eth%d:%s: ", pUmDevice->index, pUmDevice->name);
if (pDevice->LineSpeed == LM_LINE_SPEED_1000MBPS) {
strcat (buf, "1000 Mbps ");
lcd[0] = '1';
lcd[1] = 'G';
lcd[2] = 'B';
} else if (pDevice->LineSpeed == LM_LINE_SPEED_100MBPS) {
strcat (buf, "100 Mbps ");
lcd[0] = '1';
lcd[1] = '0';
lcd[2] = '0';
} else if (pDevice->LineSpeed == LM_LINE_SPEED_10MBPS) {
strcat (buf, "10 Mbps ");
lcd[0] = '1';
lcd[1] = '0';
lcd[2] = ' ';
}
if (pDevice->DuplexMode == LM_DUPLEX_MODE_FULL) {
strcat (buf, "full duplex");
lcd[3] = 'F';
} else {
strcat (buf, "half duplex");
lcd[3] = 'H';
}
strcat (buf, " link up");
flow_control = pDevice->FlowControl &
(LM_FLOW_CONTROL_RECEIVE_PAUSE |
LM_FLOW_CONTROL_TRANSMIT_PAUSE);
if (flow_control) {
if (flow_control & LM_FLOW_CONTROL_RECEIVE_PAUSE) {
strcat (buf, ", receive ");
if (flow_control &
LM_FLOW_CONTROL_TRANSMIT_PAUSE)
strcat (buf, " & transmit ");
} else {
strcat (buf, ", transmit ");
}
strcat (buf, "flow control ON");
} else {
strcat (buf, ", flow control OFF");
}
strcat (buf, "\n");
printf ("%s", buf);
}
#if 0
sysLedDsply (lcd[0], lcd[1], lcd[2], lcd[3]);
#endif
return LM_STATUS_SUCCESS;
}
LM_STATUS MM_FreeRxBuffer (PLM_DEVICE_BLOCK pDevice, PLM_PACKET pPacket)
{
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
PUM_PACKET pUmPacket;
void *skb;
pUmPacket = (PUM_PACKET) pPacket;
if ((skb = pUmPacket->skbuff))
bcm570xPktFree (pUmDevice->index, skb);
pUmPacket->skbuff = 0;
return LM_STATUS_SUCCESS;
}
unsigned long MM_AnGetCurrentTime_us (PAN_STATE_INFO pAnInfo)
{
return get_timer (0);
}
/*
* Transform an MBUF chain into a single MBUF.
* This routine will fail if the amount of data in the
* chain overflows a transmit buffer. In that case,
* the incoming MBUF chain will be freed. This routine can
* also fail by not being able to allocate a new MBUF (including
* cluster and mbuf headers). In that case the failure is
* non-fatal. The incoming cluster chain is not freed, giving
* the caller the choice of whether to try a retransmit later.
*/
LM_STATUS MM_CoalesceTxBuffer (PLM_DEVICE_BLOCK pDevice, PLM_PACKET pPacket)
{
PUM_PACKET pUmPacket = (PUM_PACKET) pPacket;
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
void *skbnew;
int len = 0;
if (len == 0)
return (LM_STATUS_SUCCESS);
if (len > MAX_PACKET_SIZE) {
printf ("eth%d: xmit frame discarded, too big!, size = %d\n",
pUmDevice->index, len);
return (LM_STATUS_FAILURE);
}
skbnew = bcm570xPktAlloc (pUmDevice->index, MAX_PACKET_SIZE);
if (skbnew == NULL) {
pUmDevice->tx_full = 1;
printf ("eth%d: out of transmit buffers", pUmDevice->index);
return (LM_STATUS_FAILURE);
}
/* New packet values */
pUmPacket->skbuff = skbnew;
pUmPacket->lm_packet.u.Tx.FragCount = 1;
return (LM_STATUS_SUCCESS);
}
LM_STATUS MM_IndicateRxPackets (PLM_DEVICE_BLOCK pDevice)
{
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
pUmDevice->rx_pkt = 1;
return LM_STATUS_SUCCESS;
}
LM_STATUS MM_IndicateTxPackets (PLM_DEVICE_BLOCK pDevice)
{
PUM_DEVICE_BLOCK pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
PLM_PACKET pPacket;
PUM_PACKET pUmPacket;
void *skb;
while (TRUE) {
pPacket = (PLM_PACKET)
QQ_PopHead (&pDevice->TxPacketXmittedQ.Container);
if (pPacket == 0)
break;
pUmPacket = (PUM_PACKET) pPacket;
skb = (void *)pUmPacket->skbuff;
/*
* Free MBLK if we transmitted a fragmented packet or a
* non-fragmented packet straight from the VxWorks
* buffer pool. If packet was copied to a local transmit
* buffer, then there's no MBUF to free, just free
* the transmit buffer back to the cluster pool.
*/
if (skb)
bcm570xPktFree (pUmDevice->index, skb);
pUmPacket->skbuff = 0;
QQ_PushTail (&pDevice->TxPacketFreeQ.Container, pPacket);
pUmDevice->tx_pkt = 1;
}
if (pUmDevice->tx_full) {
if (QQ_GetEntryCnt (&pDevice->TxPacketFreeQ.Container) >=
(QQ_GetSize (&pDevice->TxPacketFreeQ.Container) >> 1))
pUmDevice->tx_full = 0;
}
return LM_STATUS_SUCCESS;
}
/*
* Scan an MBUF chain until we reach fragment number "frag"
* Return its length and physical address.
*/
void MM_MapTxDma
(PLM_DEVICE_BLOCK pDevice,
struct _LM_PACKET *pPacket,
T3_64BIT_HOST_ADDR * paddr, LM_UINT32 * len, int frag) {
PUM_PACKET pUmPacket = (PUM_PACKET) pPacket;
*len = pPacket->PacketSize;
MM_SetT3Addr (paddr, (dma_addr_t) pUmPacket->skbuff);
}
/*
* Convert an mbuf address, a CPU local virtual address,
* to a physical address as seen from a PCI device. Store the
* result at paddr.
*/
void MM_MapRxDma (PLM_DEVICE_BLOCK pDevice,
struct _LM_PACKET *pPacket, T3_64BIT_HOST_ADDR * paddr)
{
PUM_PACKET pUmPacket = (PUM_PACKET) pPacket;
MM_SetT3Addr (paddr, (dma_addr_t) pUmPacket->skbuff);
}
void MM_SetAddr (LM_PHYSICAL_ADDRESS * paddr, dma_addr_t addr)
{
#if (BITS_PER_LONG == 64)
paddr->High = ((unsigned long)addr) >> 32;
paddr->Low = ((unsigned long)addr) & 0xffffffff;
#else
paddr->High = 0;
paddr->Low = (unsigned long)addr;
#endif
}
void MM_SetT3Addr (T3_64BIT_HOST_ADDR * paddr, dma_addr_t addr)
{
unsigned long baddr = (unsigned long)addr;
#if (BITS_PER_LONG == 64)
set_64bit_addr (paddr, baddr & 0xffffffff, baddr >> 32);
#else
set_64bit_addr (paddr, baddr, 0);
#endif
}
/*
* This combination of `inline' and `extern' has almost the effect of a
* macro. The way to use it is to put a function definition in a header
* file with these keywords, and put another copy of the definition
* (lacking `inline' and `extern') in a library file. The definition in
* the header file will cause most calls to the function to be inlined.
* If any uses of the function remain, they will refer to the single copy
* in the library.
*/
void atomic_set (atomic_t * entry, int val)
{
entry->counter = val;
}
int atomic_read (atomic_t * entry)
{
return entry->counter;
}
void atomic_inc (atomic_t * entry)
{
if (entry)
entry->counter++;
}
void atomic_dec (atomic_t * entry)
{
if (entry)
entry->counter--;
}
void atomic_sub (int a, atomic_t * entry)
{
if (entry)
entry->counter -= a;
}
void atomic_add (int a, atomic_t * entry)
{
if (entry)
entry->counter += a;
}
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/******************************************************************************/
void QQ_InitQueue (PQQ_CONTAINER pQueue, unsigned int QueueSize)
{
pQueue->Head = 0;
pQueue->Tail = 0;
pQueue->Size = QueueSize + 1;
atomic_set (&pQueue->EntryCnt, 0);
} /* QQ_InitQueue */
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/******************************************************************************/
char QQ_Full (PQQ_CONTAINER pQueue)
{
unsigned int NewHead;
NewHead = (pQueue->Head + 1) % pQueue->Size;
return (NewHead == pQueue->Tail);
} /* QQ_Full */
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/******************************************************************************/
char QQ_Empty (PQQ_CONTAINER pQueue)
{
return (pQueue->Head == pQueue->Tail);
} /* QQ_Empty */
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/******************************************************************************/
unsigned int QQ_GetSize (PQQ_CONTAINER pQueue)
{
return pQueue->Size;
} /* QQ_GetSize */
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/******************************************************************************/
unsigned int QQ_GetEntryCnt (PQQ_CONTAINER pQueue)
{
return atomic_read (&pQueue->EntryCnt);
} /* QQ_GetEntryCnt */
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/* TRUE entry was added successfully. */
/* FALSE queue is full. */
/******************************************************************************/
char QQ_PushHead (PQQ_CONTAINER pQueue, PQQ_ENTRY pEntry)
{
unsigned int Head;
Head = (pQueue->Head + 1) % pQueue->Size;
#if !defined(QQ_NO_OVERFLOW_CHECK)
if (Head == pQueue->Tail) {
return 0;
} /* if */
#endif /* QQ_NO_OVERFLOW_CHECK */
pQueue->Array[pQueue->Head] = pEntry;
wmb ();
pQueue->Head = Head;
atomic_inc (&pQueue->EntryCnt);
return -1;
} /* QQ_PushHead */
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/* TRUE entry was added successfully. */
/* FALSE queue is full. */
/******************************************************************************/
char QQ_PushTail (PQQ_CONTAINER pQueue, PQQ_ENTRY pEntry)
{
unsigned int Tail;
Tail = pQueue->Tail;
if (Tail == 0) {
Tail = pQueue->Size;
} /* if */
Tail--;
#if !defined(QQ_NO_OVERFLOW_CHECK)
if (Tail == pQueue->Head) {
return 0;
} /* if */
#endif /* QQ_NO_OVERFLOW_CHECK */
pQueue->Array[Tail] = pEntry;
wmb ();
pQueue->Tail = Tail;
atomic_inc (&pQueue->EntryCnt);
return -1;
} /* QQ_PushTail */
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/******************************************************************************/
PQQ_ENTRY QQ_PopHead (PQQ_CONTAINER pQueue)
{
unsigned int Head;
PQQ_ENTRY Entry;
Head = pQueue->Head;
#if !defined(QQ_NO_UNDERFLOW_CHECK)
if (Head == pQueue->Tail) {
return (PQQ_ENTRY) 0;
} /* if */
#endif /* QQ_NO_UNDERFLOW_CHECK */
if (Head == 0) {
Head = pQueue->Size;
} /* if */
Head--;
Entry = pQueue->Array[Head];
membar ();
pQueue->Head = Head;
atomic_dec (&pQueue->EntryCnt);
return Entry;
} /* QQ_PopHead */
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/******************************************************************************/
PQQ_ENTRY QQ_PopTail (PQQ_CONTAINER pQueue)
{
unsigned int Tail;
PQQ_ENTRY Entry;
Tail = pQueue->Tail;
#if !defined(QQ_NO_UNDERFLOW_CHECK)
if (Tail == pQueue->Head) {
return (PQQ_ENTRY) 0;
} /* if */
#endif /* QQ_NO_UNDERFLOW_CHECK */
Entry = pQueue->Array[Tail];
membar ();
pQueue->Tail = (Tail + 1) % pQueue->Size;
atomic_dec (&pQueue->EntryCnt);
return Entry;
} /* QQ_PopTail */
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/******************************************************************************/
PQQ_ENTRY QQ_GetHead (PQQ_CONTAINER pQueue, unsigned int Idx)
{
if (Idx >= atomic_read (&pQueue->EntryCnt)) {
return (PQQ_ENTRY) 0;
}
if (pQueue->Head > Idx) {
Idx = pQueue->Head - Idx;
} else {
Idx = pQueue->Size - (Idx - pQueue->Head);
}
Idx--;
return pQueue->Array[Idx];
}
/******************************************************************************/
/* Description: */
/* */
/* Return: */
/******************************************************************************/
PQQ_ENTRY QQ_GetTail (PQQ_CONTAINER pQueue, unsigned int Idx)
{
if (Idx >= atomic_read (&pQueue->EntryCnt)) {
return (PQQ_ENTRY) 0;
}
Idx += pQueue->Tail;
if (Idx >= pQueue->Size) {
Idx = Idx - pQueue->Size;
}
return pQueue->Array[Idx];
}
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