Release 4.7 drivers/net/ethernet/broadcom/bgmac.c
/*
* Driver for (BCM4706)? GBit MAC core on BCMA bus.
*
* Copyright (C) 2012 Rafał Miłecki <zajec5@gmail.com>
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#include "bgmac.h"
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/phy_fixed.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/bcm47xx_nvram.h>
static const struct bcma_device_id bgmac_bcma_tbl[] = {
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_4706_MAC_GBIT, BCMA_ANY_REV, BCMA_ANY_CLASS),
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_MAC_GBIT, BCMA_ANY_REV, BCMA_ANY_CLASS),
{},
};
MODULE_DEVICE_TABLE(bcma, bgmac_bcma_tbl);
static inline bool bgmac_is_bcm4707_family(struct bgmac *bgmac)
{
switch (bgmac->core->bus->chipinfo.id) {
case BCMA_CHIP_ID_BCM4707:
case BCMA_CHIP_ID_BCM47094:
case BCMA_CHIP_ID_BCM53018:
return true;
default:
return false;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 42 | 100.00% | 2 | 100.00% |
| Total | 42 | 100.00% | 2 | 100.00% |
static bool bgmac_wait_value(struct bcma_device *core, u16 reg, u32 mask,
u32 value, int timeout)
{
u32 val;
int i;
for (i = 0; i < timeout / 10; i++) {
val = bcma_read32(core, reg);
if ((val & mask) == value)
return true;
udelay(10);
}
pr_err("Timeout waiting for reg 0x%X\n", reg);
return false;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 83 | 100.00% | 1 | 100.00% |
| Total | 83 | 100.00% | 1 | 100.00% |
/**************************************************
* DMA
**************************************************/
static void bgmac_dma_tx_reset(struct bgmac *bgmac, struct bgmac_dma_ring *ring)
{
u32 val;
int i;
if (!ring->mmio_base)
return;
/* Suspend DMA TX ring first.
* bgmac_wait_value doesn't support waiting for any of few values, so
* implement whole loop here.
*/
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_CTL,
BGMAC_DMA_TX_SUSPEND);
for (i = 0; i < 10000 / 10; i++) {
val = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_TX_STATUS);
val &= BGMAC_DMA_TX_STAT;
if (val == BGMAC_DMA_TX_STAT_DISABLED ||
val == BGMAC_DMA_TX_STAT_IDLEWAIT ||
val == BGMAC_DMA_TX_STAT_STOPPED) {
i = 0;
break;
}
udelay(10);
}
if (i)
bgmac_err(bgmac, "Timeout suspending DMA TX ring 0x%X (BGMAC_DMA_TX_STAT: 0x%08X)\n",
ring->mmio_base, val);
/* Remove SUSPEND bit */
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_CTL, 0);
if (!bgmac_wait_value(bgmac->core,
ring->mmio_base + BGMAC_DMA_TX_STATUS,
BGMAC_DMA_TX_STAT, BGMAC_DMA_TX_STAT_DISABLED,
10000)) {
bgmac_warn(bgmac, "DMA TX ring 0x%X wasn't disabled on time, waiting additional 300us\n",
ring->mmio_base);
udelay(300);
val = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_TX_STATUS);
if ((val & BGMAC_DMA_TX_STAT) != BGMAC_DMA_TX_STAT_DISABLED)
bgmac_err(bgmac, "Reset of DMA TX ring 0x%X failed\n",
ring->mmio_base);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 209 | 100.00% | 1 | 100.00% |
| Total | 209 | 100.00% | 1 | 100.00% |
static void bgmac_dma_tx_enable(struct bgmac *bgmac,
struct bgmac_dma_ring *ring)
{
u32 ctl;
ctl = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_TX_CTL);
if (bgmac->core->id.rev >= 4) {
ctl &= ~BGMAC_DMA_TX_BL_MASK;
ctl |= BGMAC_DMA_TX_BL_128 << BGMAC_DMA_TX_BL_SHIFT;
ctl &= ~BGMAC_DMA_TX_MR_MASK;
ctl |= BGMAC_DMA_TX_MR_2 << BGMAC_DMA_TX_MR_SHIFT;
ctl &= ~BGMAC_DMA_TX_PC_MASK;
ctl |= BGMAC_DMA_TX_PC_16 << BGMAC_DMA_TX_PC_SHIFT;
ctl &= ~BGMAC_DMA_TX_PT_MASK;
ctl |= BGMAC_DMA_TX_PT_8 << BGMAC_DMA_TX_PT_SHIFT;
}
ctl |= BGMAC_DMA_TX_ENABLE;
ctl |= BGMAC_DMA_TX_PARITY_DISABLE;
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_CTL, ctl);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hauke mehrtens | hauke mehrtens | 58 | 52.25% | 1 | 50.00% |
| rafal milecki | rafal milecki | 53 | 47.75% | 1 | 50.00% |
| Total | 111 | 100.00% | 2 | 100.00% |
static void
bgmac_dma_tx_add_buf(struct bgmac *bgmac, struct bgmac_dma_ring *ring,
int i, int len, u32 ctl0)
{
struct bgmac_slot_info *slot;
struct bgmac_dma_desc *dma_desc;
u32 ctl1;
if (i == BGMAC_TX_RING_SLOTS - 1)
ctl0 |= BGMAC_DESC_CTL0_EOT;
ctl1 = len & BGMAC_DESC_CTL1_LEN;
slot = &ring->slots[i];
dma_desc = &ring->cpu_base[i];
dma_desc->addr_low = cpu_to_le32(lower_32_bits(slot->dma_addr));
dma_desc->addr_high = cpu_to_le32(upper_32_bits(slot->dma_addr));
dma_desc->ctl0 = cpu_to_le32(ctl0);
dma_desc->ctl1 = cpu_to_le32(ctl1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| felix fietkau | felix fietkau | 122 | 100.00% | 2 | 100.00% |
| Total | 122 | 100.00% | 2 | 100.00% |
static netdev_tx_t bgmac_dma_tx_add(struct bgmac *bgmac,
struct bgmac_dma_ring *ring,
struct sk_buff *skb)
{
struct device *dma_dev = bgmac->core->dma_dev;
struct net_device *net_dev = bgmac->net_dev;
int index = ring->end % BGMAC_TX_RING_SLOTS;
struct bgmac_slot_info *slot = &ring->slots[index];
int nr_frags;
u32 flags;
int i;
if (skb->len > BGMAC_DESC_CTL1_LEN) {
bgmac_err(bgmac, "Too long skb (%d)\n", skb->len);
goto err_drop;
}
if (skb->ip_summed == CHECKSUM_PARTIAL)
skb_checksum_help(skb);
nr_frags = skb_shinfo(skb)->nr_frags;
/* ring->end - ring->start will return the number of valid slots,
* even when ring->end overflows
*/
if (ring->end - ring->start + nr_frags + 1 >= BGMAC_TX_RING_SLOTS) {
bgmac_err(bgmac, "TX ring is full, queue should be stopped!\n");
netif_stop_queue(net_dev);
return NETDEV_TX_BUSY;
}
slot->dma_addr = dma_map_single(dma_dev, skb->data, skb_headlen(skb),
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dma_dev, slot->dma_addr)))
goto err_dma_head;
flags = BGMAC_DESC_CTL0_SOF;
if (!nr_frags)
flags |= BGMAC_DESC_CTL0_EOF | BGMAC_DESC_CTL0_IOC;
bgmac_dma_tx_add_buf(bgmac, ring, index, skb_headlen(skb), flags);
flags = 0;
for (i = 0; i < nr_frags; i++) {
struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
int len = skb_frag_size(frag);
index = (index + 1) % BGMAC_TX_RING_SLOTS;
slot = &ring->slots[index];
slot->dma_addr = skb_frag_dma_map(dma_dev, frag, 0,
len, DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dma_dev, slot->dma_addr)))
goto err_dma;
if (i == nr_frags - 1)
flags |= BGMAC_DESC_CTL0_EOF | BGMAC_DESC_CTL0_IOC;
bgmac_dma_tx_add_buf(bgmac, ring, index, len, flags);
}
slot->skb = skb;
ring->end += nr_frags + 1;
netdev_sent_queue(net_dev, skb->len);
wmb();
/* Increase ring->end to point empty slot. We tell hardware the first
* slot it should *not* read.
*/
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_INDEX,
ring->index_base +
(ring->end % BGMAC_TX_RING_SLOTS) *
sizeof(struct bgmac_dma_desc));
if (ring->end - ring->start >= BGMAC_TX_RING_SLOTS - 8)
netif_stop_queue(net_dev);
return NETDEV_TX_OK;
err_dma:
dma_unmap_single(dma_dev, slot->dma_addr, skb_headlen(skb),
DMA_TO_DEVICE);
while (i-- > 0) {
int index = (ring->end + i) % BGMAC_TX_RING_SLOTS;
struct bgmac_slot_info *slot = &ring->slots[index];
u32 ctl1 = le32_to_cpu(ring->cpu_base[index].ctl1);
int len = ctl1 & BGMAC_DESC_CTL1_LEN;
dma_unmap_page(dma_dev, slot->dma_addr, len, DMA_TO_DEVICE);
}
err_dma_head:
bgmac_err(bgmac, "Mapping error of skb on ring 0x%X\n",
ring->mmio_base);
err_drop:
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| felix fietkau | felix fietkau | 337 | 63.23% | 2 | 40.00% |
| rafal milecki | rafal milecki | 189 | 35.46% | 1 | 20.00% |
| hauke mehrtens | hauke mehrtens | 6 | 1.13% | 1 | 20.00% |
| florian fainelli | florian fainelli | 1 | 0.19% | 1 | 20.00% |
| Total | 533 | 100.00% | 5 | 100.00% |
/* Free transmitted packets */
static void bgmac_dma_tx_free(struct bgmac *bgmac, struct bgmac_dma_ring *ring)
{
struct device *dma_dev = bgmac->core->dma_dev;
int empty_slot;
bool freed = false;
unsigned bytes_compl = 0, pkts_compl = 0;
/* The last slot that hardware didn't consume yet */
empty_slot = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_TX_STATUS);
empty_slot &= BGMAC_DMA_TX_STATDPTR;
empty_slot -= ring->index_base;
empty_slot &= BGMAC_DMA_TX_STATDPTR;
empty_slot /= sizeof(struct bgmac_dma_desc);
while (ring->start != ring->end) {
int slot_idx = ring->start % BGMAC_TX_RING_SLOTS;
struct bgmac_slot_info *slot = &ring->slots[slot_idx];
u32 ctl0, ctl1;
int len;
if (slot_idx == empty_slot)
break;
ctl0 = le32_to_cpu(ring->cpu_base[slot_idx].ctl0);
ctl1 = le32_to_cpu(ring->cpu_base[slot_idx].ctl1);
len = ctl1 & BGMAC_DESC_CTL1_LEN;
if (ctl0 & BGMAC_DESC_CTL0_SOF)
/* Unmap no longer used buffer */
dma_unmap_single(dma_dev, slot->dma_addr, len,
DMA_TO_DEVICE);
else
dma_unmap_page(dma_dev, slot->dma_addr, len,
DMA_TO_DEVICE);
if (slot->skb) {
bytes_compl += slot->skb->len;
pkts_compl++;
/* Free memory! :) */
dev_kfree_skb(slot->skb);
slot->skb = NULL;
}
slot->dma_addr = 0;
ring->start++;
freed = true;
}
if (!pkts_compl)
return;
netdev_completed_queue(bgmac->net_dev, pkts_compl, bytes_compl);
if (netif_queue_stopped(bgmac->net_dev))
netif_wake_queue(bgmac->net_dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 151 | 54.32% | 2 | 33.33% |
| felix fietkau | felix fietkau | 79 | 28.42% | 2 | 33.33% |
| hauke mehrtens | hauke mehrtens | 31 | 11.15% | 1 | 16.67% |
| florian fainelli | florian fainelli | 17 | 6.12% | 1 | 16.67% |
| Total | 278 | 100.00% | 6 | 100.00% |
static void bgmac_dma_rx_reset(struct bgmac *bgmac, struct bgmac_dma_ring *ring)
{
if (!ring->mmio_base)
return;
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_CTL, 0);
if (!bgmac_wait_value(bgmac->core,
ring->mmio_base + BGMAC_DMA_RX_STATUS,
BGMAC_DMA_RX_STAT, BGMAC_DMA_RX_STAT_DISABLED,
10000))
bgmac_err(bgmac, "Reset of ring 0x%X RX failed\n",
ring->mmio_base);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 70 | 100.00% | 1 | 100.00% |
| Total | 70 | 100.00% | 1 | 100.00% |
static void bgmac_dma_rx_enable(struct bgmac *bgmac,
struct bgmac_dma_ring *ring)
{
u32 ctl;
ctl = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_RX_CTL);
if (bgmac->core->id.rev >= 4) {
ctl &= ~BGMAC_DMA_RX_BL_MASK;
ctl |= BGMAC_DMA_RX_BL_128 << BGMAC_DMA_RX_BL_SHIFT;
ctl &= ~BGMAC_DMA_RX_PC_MASK;
ctl |= BGMAC_DMA_RX_PC_8 << BGMAC_DMA_RX_PC_SHIFT;
ctl &= ~BGMAC_DMA_RX_PT_MASK;
ctl |= BGMAC_DMA_RX_PT_1 << BGMAC_DMA_RX_PT_SHIFT;
}
ctl &= BGMAC_DMA_RX_ADDREXT_MASK;
ctl |= BGMAC_DMA_RX_ENABLE;
ctl |= BGMAC_DMA_RX_PARITY_DISABLE;
ctl |= BGMAC_DMA_RX_OVERFLOW_CONT;
ctl |= BGMAC_RX_FRAME_OFFSET << BGMAC_DMA_RX_FRAME_OFFSET_SHIFT;
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_CTL, ctl);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 67 | 58.77% | 1 | 50.00% |
| hauke mehrtens | hauke mehrtens | 47 | 41.23% | 1 | 50.00% |
| Total | 114 | 100.00% | 2 | 100.00% |
static int bgmac_dma_rx_skb_for_slot(struct bgmac *bgmac,
struct bgmac_slot_info *slot)
{
struct device *dma_dev = bgmac->core->dma_dev;
dma_addr_t dma_addr;
struct bgmac_rx_header *rx;
void *buf;
/* Alloc skb */
buf = netdev_alloc_frag(BGMAC_RX_ALLOC_SIZE);
if (!buf)
return -ENOMEM;
/* Poison - if everything goes fine, hardware will overwrite it */
rx = buf + BGMAC_RX_BUF_OFFSET;
rx->len = cpu_to_le16(0xdead);
rx->flags = cpu_to_le16(0xbeef);
/* Map skb for the DMA */
dma_addr = dma_map_single(dma_dev, buf + BGMAC_RX_BUF_OFFSET,
BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE);
if (dma_mapping_error(dma_dev, dma_addr)) {
bgmac_err(bgmac, "DMA mapping error\n");
put_page(virt_to_head_page(buf));
return -ENOMEM;
}
/* Update the slot */
slot->buf = buf;
slot->dma_addr = dma_addr;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 104 | 72.73% | 1 | 25.00% |
| felix fietkau | felix fietkau | 21 | 14.69% | 2 | 50.00% |
| nathan hintz | nathan hintz | 18 | 12.59% | 1 | 25.00% |
| Total | 143 | 100.00% | 4 | 100.00% |
static void bgmac_dma_rx_update_index(struct bgmac *bgmac,
struct bgmac_dma_ring *ring)
{
dma_wmb();
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_INDEX,
ring->index_base +
ring->end * sizeof(struct bgmac_dma_desc));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| felix fietkau | felix fietkau | 44 | 100.00% | 1 | 100.00% |
| Total | 44 | 100.00% | 1 | 100.00% |
static void bgmac_dma_rx_setup_desc(struct bgmac *bgmac,
struct bgmac_dma_ring *ring, int desc_idx)
{
struct bgmac_dma_desc *dma_desc = ring->cpu_base + desc_idx;
u32 ctl0 = 0, ctl1 = 0;
if (desc_idx == BGMAC_RX_RING_SLOTS - 1)
ctl0 |= BGMAC_DESC_CTL0_EOT;
ctl1 |= BGMAC_RX_BUF_SIZE & BGMAC_DESC_CTL1_LEN;
/* Is there any BGMAC device that requires extension? */
/* ctl1 |= (addrext << B43_DMA64_DCTL1_ADDREXT_SHIFT) &
* B43_DMA64_DCTL1_ADDREXT_MASK;
*/
dma_desc->addr_low = cpu_to_le32(lower_32_bits(ring->slots[desc_idx].dma_addr));
dma_desc->addr_high = cpu_to_le32(upper_32_bits(ring->slots[desc_idx].dma_addr));
dma_desc->ctl0 = cpu_to_le32(ctl0);
dma_desc->ctl1 = cpu_to_le32(ctl1);
ring->end = desc_idx;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 114 | 94.21% | 1 | 33.33% |
| felix fietkau | felix fietkau | 7 | 5.79% | 2 | 66.67% |
| Total | 121 | 100.00% | 3 | 100.00% |
static void bgmac_dma_rx_poison_buf(struct device *dma_dev,
struct bgmac_slot_info *slot)
{
struct bgmac_rx_header *rx = slot->buf + BGMAC_RX_BUF_OFFSET;
dma_sync_single_for_cpu(dma_dev, slot->dma_addr, BGMAC_RX_BUF_SIZE,
DMA_FROM_DEVICE);
rx->len = cpu_to_le16(0xdead);
rx->flags = cpu_to_le16(0xbeef);
dma_sync_single_for_device(dma_dev, slot->dma_addr, BGMAC_RX_BUF_SIZE,
DMA_FROM_DEVICE);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| felix fietkau | felix fietkau | 71 | 100.00% | 1 | 100.00% |
| Total | 71 | 100.00% | 1 | 100.00% |
static int bgmac_dma_rx_read(struct bgmac *bgmac, struct bgmac_dma_ring *ring,
int weight)
{
u32 end_slot;
int handled = 0;
end_slot = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_RX_STATUS);
end_slot &= BGMAC_DMA_RX_STATDPTR;
end_slot -= ring->index_base;
end_slot &= BGMAC_DMA_RX_STATDPTR;
end_slot /= sizeof(struct bgmac_dma_desc);
while (ring->start != end_slot) {
struct device *dma_dev = bgmac->core->dma_dev;
struct bgmac_slot_info *slot = &ring->slots[ring->start];
struct bgmac_rx_header *rx = slot->buf + BGMAC_RX_BUF_OFFSET;
struct sk_buff *skb;
void *buf = slot->buf;
dma_addr_t dma_addr = slot->dma_addr;
u16 len, flags;
do {
/* Prepare new skb as replacement */
if (bgmac_dma_rx_skb_for_slot(bgmac, slot)) {
bgmac_dma_rx_poison_buf(dma_dev, slot);
break;
}
/* Unmap buffer to make it accessible to the CPU */
dma_unmap_single(dma_dev, dma_addr,
BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE);
/* Get info from the header */
len = le16_to_cpu(rx->len);
flags = le16_to_cpu(rx->flags);
/* Check for poison and drop or pass the packet */
if (len == 0xdead && flags == 0xbeef) {
bgmac_err(bgmac, "Found poisoned packet at slot %d, DMA issue!\n",
ring->start);
put_page(virt_to_head_page(buf));
break;
}
if (len > BGMAC_RX_ALLOC_SIZE) {
bgmac_err(bgmac, "Found oversized packet at slot %d, DMA issue!\n",
ring->start);
put_page(virt_to_head_page(buf));
break;
}
/* Omit CRC. */
len -= ETH_FCS_LEN;
skb = build_skb(buf, BGMAC_RX_ALLOC_SIZE);
if (unlikely(!skb)) {
bgmac_err(bgmac, "build_skb failed\n");
put_page(virt_to_head_page(buf));
break;
}
skb_put(skb, BGMAC_RX_FRAME_OFFSET +
BGMAC_RX_BUF_OFFSET + len);
skb_pull(skb, BGMAC_RX_FRAME_OFFSET +
BGMAC_RX_BUF_OFFSET);
skb_checksum_none_assert(skb);
skb->protocol = eth_type_trans(skb, bgmac->net_dev);
napi_gro_receive(&bgmac->napi, skb);
handled++;
} while (0);
bgmac_dma_rx_setup_desc(bgmac, ring, ring->start);
if (++ring->start >= BGMAC_RX_RING_SLOTS)
ring->start = 0;
if (handled >= weight) /* Should never be greater */
break;
}
bgmac_dma_rx_update_index(bgmac, ring);
return handled;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 237 | 60.93% | 3 | 27.27% |
| felix fietkau | felix fietkau | 116 | 29.82% | 5 | 45.45% |
| wang weidong | wang weidong | 25 | 6.43% | 1 | 9.09% |
| hauke mehrtens | hauke mehrtens | 10 | 2.57% | 1 | 9.09% |
| david s. miller | david s. miller | 1 | 0.26% | 1 | 9.09% |
| Total | 389 | 100.00% | 11 | 100.00% |
/* Does ring support unaligned addressing? */
static bool bgmac_dma_unaligned(struct bgmac *bgmac,
struct bgmac_dma_ring *ring,
enum bgmac_dma_ring_type ring_type)
{
switch (ring_type) {
case BGMAC_DMA_RING_TX:
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_RINGLO,
0xff0);
if (bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_TX_RINGLO))
return true;
break;
case BGMAC_DMA_RING_RX:
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_RINGLO,
0xff0);
if (bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_RX_RINGLO))
return true;
break;
}
return false;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 95 | 100.00% | 1 | 100.00% |
| Total | 95 | 100.00% | 1 | 100.00% |
static void bgmac_dma_tx_ring_free(struct bgmac *bgmac,
struct bgmac_dma_ring *ring)
{
struct device *dma_dev = bgmac->core->dma_dev;
struct bgmac_dma_desc *dma_desc = ring->cpu_base;
struct bgmac_slot_info *slot;
int i;
for (i = 0; i < BGMAC_TX_RING_SLOTS; i++) {
int len = dma_desc[i].ctl1 & BGMAC_DESC_CTL1_LEN;
slot = &ring->slots[i];
dev_kfree_skb(slot->skb);
if (!slot->dma_addr)
continue;
if (slot->skb)
dma_unmap_single(dma_dev, slot->dma_addr,
len, DMA_TO_DEVICE);
else
dma_unmap_page(dma_dev, slot->dma_addr,
len, DMA_TO_DEVICE);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 86 | 66.67% | 1 | 25.00% |
| felix fietkau | felix fietkau | 43 | 33.33% | 3 | 75.00% |
| Total | 129 | 100.00% | 4 | 100.00% |
static void bgmac_dma_rx_ring_free(struct bgmac *bgmac,
struct bgmac_dma_ring *ring)
{
struct device *dma_dev = bgmac->core->dma_dev;
struct bgmac_slot_info *slot;
int i;
for (i = 0; i < BGMAC_RX_RING_SLOTS; i++) {
slot = &ring->slots[i];
if (!slot->dma_addr)
continue;
dma_unmap_single(dma_dev, slot->dma_addr,
BGMAC_RX_BUF_SIZE,
DMA_FROM_DEVICE);
put_page(virt_to_head_page(slot->buf));
slot->dma_addr = 0;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| felix fietkau | felix fietkau | 97 | 100.00% | 3 | 100.00% |
| Total | 97 | 100.00% | 3 | 100.00% |
static void bgmac_dma_ring_desc_free(struct bgmac *bgmac,
struct bgmac_dma_ring *ring,
int num_slots)
{
struct device *dma_dev = bgmac->core->dma_dev;
int size;
if (!ring->cpu_base)
return;
/* Free ring of descriptors */
size = num_slots * sizeof(struct bgmac_dma_desc);
dma_free_coherent(dma_dev, size, ring->cpu_base,
ring->dma_base);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| felix fietkau | felix fietkau | 34 | 50.75% | 2 | 66.67% |
| rafal milecki | rafal milecki | 33 | 49.25% | 1 | 33.33% |
| Total | 67 | 100.00% | 3 | 100.00% |
static void bgmac_dma_cleanup(struct bgmac *bgmac)
{
int i;
for (i = 0; i < BGMAC_MAX_TX_RINGS; i++)
bgmac_dma_tx_ring_free(bgmac, &bgmac->tx_ring[i]);
for (i = 0; i < BGMAC_MAX_RX_RINGS; i++)
bgmac_dma_rx_ring_free(bgmac, &bgmac->rx_ring[i]);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 36 | 54.55% | 1 | 33.33% |
| felix fietkau | felix fietkau | 30 | 45.45% | 2 | 66.67% |
| Total | 66 | 100.00% | 3 | 100.00% |
static void bgmac_dma_free(struct bgmac *bgmac)
{
int i;
for (i = 0; i < BGMAC_MAX_TX_RINGS; i++)
bgmac_dma_ring_desc_free(bgmac, &bgmac->tx_ring[i],
BGMAC_TX_RING_SLOTS);
for (i = 0; i < BGMAC_MAX_RX_RINGS; i++)
bgmac_dma_ring_desc_free(bgmac, &bgmac->rx_ring[i],
BGMAC_RX_RING_SLOTS);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| felix fietkau | felix fietkau | 45 | 64.29% | 3 | 75.00% |
| rafal milecki | rafal milecki | 25 | 35.71% | 1 | 25.00% |
| Total | 70 | 100.00% | 4 | 100.00% |
static int bgmac_dma_alloc(struct bgmac *bgmac)
{
struct device *dma_dev = bgmac->core->dma_dev;
struct bgmac_dma_ring *ring;
static const u16 ring_base[] = { BGMAC_DMA_BASE0, BGMAC_DMA_BASE1,
BGMAC_DMA_BASE2, BGMAC_DMA_BASE3, };
int size; /* ring size: different for Tx and Rx */
int err;
int i;
BUILD_BUG_ON(BGMAC_MAX_TX_RINGS > ARRAY_SIZE(ring_base));
BUILD_BUG_ON(BGMAC_MAX_RX_RINGS > ARRAY_SIZE(ring_base));
if (!(bcma_aread32(bgmac->core, BCMA_IOST) & BCMA_IOST_DMA64)) {
bgmac_err(bgmac, "Core does not report 64-bit DMA\n");
return -ENOTSUPP;
}
for (i = 0; i < BGMAC_MAX_TX_RINGS; i++) {
ring = &bgmac->tx_ring[i];
ring->mmio_base = ring_base[i];
/* Alloc ring of descriptors */
size = BGMAC_TX_RING_SLOTS * sizeof(struct bgmac_dma_desc);
ring->cpu_base = dma_zalloc_coherent(dma_dev, size,
&ring->dma_base,
GFP_KERNEL);
if (!ring->cpu_base) {
bgmac_err(bgmac, "Allocation of TX ring 0x%X failed\n",
ring->mmio_base);
goto err_dma_free;
}
ring->unaligned = bgmac_dma_unaligned(bgmac, ring,
BGMAC_DMA_RING_TX);
if (ring->unaligned)
ring->index_base = lower_32_bits(ring->dma_base);
else
ring->index_base = 0;
/* No need to alloc TX slots yet */
}
for (i = 0; i < BGMAC_MAX_RX_RINGS; i++) {
ring = &bgmac->rx_ring[i];
ring->mmio_base = ring_base[i];
/* Alloc ring of descriptors */
size = BGMAC_RX_RING_SLOTS * sizeof(struct bgmac_dma_desc);
ring->cpu_base = dma_zalloc_coherent(dma_dev, size,
&ring->dma_base,
GFP_KERNEL);
if (!ring->cpu_base) {
bgmac_err(bgmac, "Allocation of RX ring 0x%X failed\n",
ring->mmio_base);
err = -ENOMEM;
goto err_dma_free;
}
ring->unaligned = bgmac_dma_unaligned(bgmac, ring,
BGMAC_DMA_RING_RX);
if (ring->unaligned)
ring->index_base = lower_32_bits(ring->dma_base);
else
ring->index_base = 0;
}
return 0;
err_dma_free:
bgmac_dma_free(bgmac);
return -ENOMEM;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 366 | 99.46% | 2 | 66.67% |
| felix fietkau | felix fietkau | 2 | 0.54% | 1 | 33.33% |
| Total | 368 | 100.00% | 3 | 100.00% |
static int bgmac_dma_init(struct bgmac *bgmac)
{
struct bgmac_dma_ring *ring;
int i, err;
for (i = 0; i < BGMAC_MAX_TX_RINGS; i++) {
ring = &bgmac->tx_ring[i];
if (!ring->unaligned)
bgmac_dma_tx_enable(bgmac, ring);
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_RINGLO,
lower_32_bits(ring->dma_base));
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_RINGHI,
upper_32_bits(ring->dma_base));
if (ring->unaligned)
bgmac_dma_tx_enable(bgmac, ring);
ring->start = 0;
ring->end = 0; /* Points the slot that should *not* be read */
}
for (i = 0; i < BGMAC_MAX_RX_RINGS; i++) {
int j;
ring = &bgmac->rx_ring[i];
if (!ring->unaligned)
bgmac_dma_rx_enable(bgmac, ring);
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_RINGLO,
lower_32_bits(ring->dma_base));
bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_RINGHI,
upper_32_bits(ring->dma_base));
if (ring->unaligned)
bgmac_dma_rx_enable(bgmac, ring);
ring->start = 0;
ring->end = 0;
for (j = 0; j < BGMAC_RX_RING_SLOTS; j++) {
err = bgmac_dma_rx_skb_for_slot(bgmac, &ring->slots[j]);
if (err)
goto error;
bgmac_dma_rx_setup_desc(bgmac, ring, j);
}
bgmac_dma_rx_update_index(bgmac, ring);
}
return 0;
error:
bgmac_dma_cleanup(bgmac);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 237 | 81.44% | 4 | 57.14% |
| felix fietkau | felix fietkau | 54 | 18.56% | 3 | 42.86% |
| Total | 291 | 100.00% | 7 | 100.00% |
/**************************************************
* PHY ops
**************************************************/
static u16 bgmac_phy_read(struct bgmac *bgmac, u8 phyaddr, u8 reg)
{
struct bcma_device *core;
u16 phy_access_addr;
u16 phy_ctl_addr;
u32 tmp;
BUILD_BUG_ON(BGMAC_PA_DATA_MASK != BCMA_GMAC_CMN_PA_DATA_MASK);
BUILD_BUG_ON(BGMAC_PA_ADDR_MASK != BCMA_GMAC_CMN_PA_ADDR_MASK);
BUILD_BUG_ON(BGMAC_PA_ADDR_SHIFT != BCMA_GMAC_CMN_PA_ADDR_SHIFT);
BUILD_BUG_ON(BGMAC_PA_REG_MASK != BCMA_GMAC_CMN_PA_REG_MASK);
BUILD_BUG_ON(BGMAC_PA_REG_SHIFT != BCMA_GMAC_CMN_PA_REG_SHIFT);
BUILD_BUG_ON(BGMAC_PA_WRITE != BCMA_GMAC_CMN_PA_WRITE);
BUILD_BUG_ON(BGMAC_PA_START != BCMA_GMAC_CMN_PA_START);
BUILD_BUG_ON(BGMAC_PC_EPA_MASK != BCMA_GMAC_CMN_PC_EPA_MASK);
BUILD_BUG_ON(BGMAC_PC_MCT_MASK != BCMA_GMAC_CMN_PC_MCT_MASK);
BUILD_BUG_ON(BGMAC_PC_MCT_SHIFT != BCMA_GMAC_CMN_PC_MCT_SHIFT);
BUILD_BUG_ON(BGMAC_PC_MTE != BCMA_GMAC_CMN_PC_MTE);
if (bgmac->core->id.id == BCMA_CORE_4706_MAC_GBIT) {
core = bgmac->core->bus->drv_gmac_cmn.core;
phy_access_addr = BCMA_GMAC_CMN_PHY_ACCESS;
phy_ctl_addr = BCMA_GMAC_CMN_PHY_CTL;
} else {
core = bgmac->core;
phy_access_addr = BGMAC_PHY_ACCESS;
phy_ctl_addr = BGMAC_PHY_CNTL;
}
tmp = bcma_read32(core, phy_ctl_addr);
tmp &= ~BGMAC_PC_EPA_MASK;
tmp |= phyaddr;
bcma_write32(core, phy_ctl_addr, tmp);
tmp = BGMAC_PA_START;
tmp |= phyaddr << BGMAC_PA_ADDR_SHIFT;
tmp |= reg << BGMAC_PA_REG_SHIFT;
bcma_write32(core, phy_access_addr, tmp);
if (!bgmac_wait_value(core, phy_access_addr, BGMAC_PA_START, 0, 1000)) {
bgmac_err(bgmac, "Reading PHY %d register 0x%X failed\n",
phyaddr, reg);
return 0xffff;
}
return bcma_read32(core, phy_access_addr) & BGMAC_PA_DATA_MASK;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 253 | 100.00% | 2 | 100.00% |
| Total | 253 | 100.00% | 2 | 100.00% |
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphywr */
static int bgmac_phy_write(struct bgmac *bgmac, u8 phyaddr, u8 reg, u16 value)
{
struct bcma_device *core;
u16 phy_access_addr;
u16 phy_ctl_addr;
u32 tmp;
if (bgmac->core->id.id == BCMA_CORE_4706_MAC_GBIT) {
core = bgmac->core->bus->drv_gmac_cmn.core;
phy_access_addr = BCMA_GMAC_CMN_PHY_ACCESS;
phy_ctl_addr = BCMA_GMAC_CMN_PHY_CTL;
} else {
core = bgmac->core;
phy_access_addr = BGMAC_PHY_ACCESS;
phy_ctl_addr = BGMAC_PHY_CNTL;
}
tmp = bcma_read32(core, phy_ctl_addr);
tmp &= ~BGMAC_PC_EPA_MASK;
tmp |= phyaddr;
bcma_write32(core, phy_ctl_addr, tmp);
bgmac_write(bgmac, BGMAC_INT_STATUS, BGMAC_IS_MDIO);
if (bgmac_read(bgmac, BGMAC_INT_STATUS) & BGMAC_IS_MDIO)
bgmac_warn(bgmac, "Error setting MDIO int\n");
tmp = BGMAC_PA_START;
tmp |= BGMAC_PA_WRITE;
tmp |= phyaddr << BGMAC_PA_ADDR_SHIFT;
tmp |= reg << BGMAC_PA_REG_SHIFT;
tmp |= value;
bcma_write32(core, phy_access_addr, tmp);
if (!bgmac_wait_value(core, phy_access_addr, BGMAC_PA_START, 0, 1000)) {
bgmac_err(bgmac, "Writing to PHY %d register 0x%X failed\n",
phyaddr, reg);
return -ETIMEDOUT;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 208 | 100.00% | 2 | 100.00% |
| Total | 208 | 100.00% | 2 | 100.00% |
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphyinit */
static void bgmac_phy_init(struct bgmac *bgmac)
{
struct bcma_chipinfo *ci = &bgmac->core->bus->chipinfo;
struct bcma_drv_cc *cc = &bgmac->core->bus->drv_cc;
u8 i;
if (ci->id == BCMA_CHIP_ID_BCM5356) {
for (i = 0; i < 5; i++) {
bgmac_phy_write(bgmac, i, 0x1f, 0x008b);
bgmac_phy_write(bgmac, i, 0x15, 0x0100);
bgmac_phy_write(bgmac, i, 0x1f, 0x000f);
bgmac_phy_write(bgmac, i, 0x12, 0x2aaa);
bgmac_phy_write(bgmac, i, 0x1f, 0x000b);
}
}
if ((ci->id == BCMA_CHIP_ID_BCM5357 && ci->pkg != 10) ||
(ci->id == BCMA_CHIP_ID_BCM4749 && ci->pkg != 10) ||
(ci->id == BCMA_CHIP_ID_BCM53572 && ci->pkg != 9)) {
bcma_chipco_chipctl_maskset(cc, 2, ~0xc0000000, 0);
bcma_chipco_chipctl_maskset(cc, 4, ~0x80000000, 0);
for (i = 0; i < 5; i++) {
bgmac_phy_write(bgmac, i, 0x1f, 0x000f);
bgmac_phy_write(bgmac, i, 0x16, 0x5284);
bgmac_phy_write(bgmac, i, 0x1f, 0x000b);
bgmac_phy_write(bgmac, i, 0x17, 0x0010);
bgmac_phy_write(bgmac, i, 0x1f, 0x000f);
bgmac_phy_write(bgmac, i, 0x16, 0x5296);
bgmac_phy_write(bgmac, i, 0x17, 0x1073);
bgmac_phy_write(bgmac, i, 0x17, 0x9073);
bgmac_phy_write(bgmac, i, 0x16, 0x52b6);
bgmac_phy_write(bgmac, i, 0x17, 0x9273);
bgmac_phy_write(bgmac, i, 0x1f, 0x000b);
}
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 328 | 100.00% | 1 | 100.00% |
| Total | 328 | 100.00% | 1 | 100.00% |
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphyreset */
static void bgmac_phy_reset(struct bgmac *bgmac)
{
if (bgmac->phyaddr == BGMAC_PHY_NOREGS)
return;
bgmac_phy_write(bgmac, bgmac->phyaddr, MII_BMCR, BMCR_RESET);
udelay(100);
if (bgmac_phy_read(bgmac, bgmac->phyaddr, MII_BMCR) & BMCR_RESET)
bgmac_err(bgmac, "PHY reset failed\n");
bgmac_phy_init(bgmac);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 65 | 100.00% | 2 | 100.00% |
| Total | 65 | 100.00% | 2 | 100.00% |
/**************************************************
* Chip ops
**************************************************/
/* TODO: can we just drop @force? Can we don't reset MAC at all if there is
* nothing to change? Try if after stabilizng driver.
*/
static void bgmac_cmdcfg_maskset(struct bgmac *bgmac, u32 mask, u32 set,
bool force)
{
u32 cmdcfg = bgmac_read(bgmac, BGMAC_CMDCFG);
u32 new_val = (cmdcfg & mask) | set;
bgmac_set(bgmac, BGMAC_CMDCFG, BGMAC_CMDCFG_SR(bgmac->core->id.rev));
udelay(2);
if (new_val != cmdcfg || force)
bgmac_write(bgmac, BGMAC_CMDCFG, new_val);
bgmac_mask(bgmac, BGMAC_CMDCFG, ~BGMAC_CMDCFG_SR(bgmac->core->id.rev));
udelay(2);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 87 | 82.86% | 1 | 50.00% |
| hauke mehrtens | hauke mehrtens | 18 | 17.14% | 1 | 50.00% |
| Total | 105 | 100.00% | 2 | 100.00% |
static void bgmac_write_mac_address(struct bgmac *bgmac, u8 *addr)
{
u32 tmp;
tmp = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3];
bgmac_write(bgmac, BGMAC_MACADDR_HIGH, tmp);
tmp = (addr[4] << 8) | addr[5];
bgmac_write(bgmac, BGMAC_MACADDR_LOW, tmp);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hauke mehrtens | hauke mehrtens | 86 | 100.00% | 1 | 100.00% |
| Total | 86 | 100.00% | 1 | 100.00% |
static void bgmac_set_rx_mode(struct net_device *net_dev)
{
struct bgmac *bgmac = netdev_priv(net_dev);
if (net_dev->flags & IFF_PROMISC)
bgmac_cmdcfg_maskset(bgmac, ~0, BGMAC_CMDCFG_PROM, true);
else
bgmac_cmdcfg_maskset(bgmac, ~BGMAC_CMDCFG_PROM, 0, true);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hauke mehrtens | hauke mehrtens | 52 | 96.30% | 1 | 50.00% |
| rafal milecki | rafal milecki | 2 | 3.70% | 1 | 50.00% |
| Total | 54 | 100.00% | 2 | 100.00% |
#if 0 /* We don't use that regs yet */
static void bgmac_chip_stats_update(struct bgmac *bgmac)
{
int i;
if (bgmac->core->id.id != BCMA_CORE_4706_MAC_GBIT) {
for (i = 0; i < BGMAC_NUM_MIB_TX_REGS; i++)
bgmac->mib_tx_regs[i] =
bgmac_read(bgmac,
BGMAC_TX_GOOD_OCTETS + (i * 4));
for (i = 0; i < BGMAC_NUM_MIB_RX_REGS; i++)
bgmac->mib_rx_regs[i] =
bgmac_read(bgmac,
BGMAC_RX_GOOD_OCTETS + (i * 4));
}
/* TODO: what else? how to handle BCM4706? Specs are needed */
}
#endif
static void bgmac_clear_mib(struct bgmac *bgmac)
{
int i;
if (bgmac->core->id.id == BCMA_CORE_4706_MAC_GBIT)
return;
bgmac_set(bgmac, BGMAC_DEV_CTL, BGMAC_DC_MROR);
for (i = 0; i < BGMAC_NUM_MIB_TX_REGS; i++)
bgmac_read(bgmac, BGMAC_TX_GOOD_OCTETS + (i * 4));
for (i = 0; i < BGMAC_NUM_MIB_RX_REGS; i++)
bgmac_read(bgmac, BGMAC_RX_GOOD_OCTETS + (i * 4));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 88 | 100.00% | 1 | 100.00% |
| Total | 88 | 100.00% | 1 | 100.00% |
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/gmac_speed */
static void bgmac_mac_speed(struct bgmac *bgmac)
{
u32 mask = ~(BGMAC_CMDCFG_ES_MASK | BGMAC_CMDCFG_HD);
u32 set = 0;
switch (bgmac->mac_speed) {
case SPEED_10:
set |= BGMAC_CMDCFG_ES_10;
break;
case SPEED_100:
set |= BGMAC_CMDCFG_ES_100;
break;
case SPEED_1000:
set |= BGMAC_CMDCFG_ES_1000;
break;
case SPEED_2500:
set |= BGMAC_CMDCFG_ES_2500;
break;
default:
bgmac_err(bgmac, "Unsupported speed: %d\n", bgmac->mac_speed);
}
if (bgmac->mac_duplex == DUPLEX_HALF)
set |= BGMAC_CMDCFG_HD;
bgmac_cmdcfg_maskset(bgmac, mask, set, true);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 93 | 92.08% | 2 | 66.67% |
| hauke mehrtens | hauke mehrtens | 8 | 7.92% | 1 | 33.33% |
| Total | 101 | 100.00% | 3 | 100.00% |
static void bgmac_miiconfig(struct bgmac *bgmac)
{
struct bcma_device *core = bgmac->core;
u8 imode;
if (bgmac_is_bcm4707_family(bgmac)) {
bcma_awrite32(core, BCMA_IOCTL,
bcma_aread32(core, BCMA_IOCTL) | 0x40 |
BGMAC_BCMA_IOCTL_SW_CLKEN);
bgmac->mac_speed = SPEED_2500;
bgmac->mac_duplex = DUPLEX_FULL;
bgmac_mac_speed(bgmac);
} else {
imode = (bgmac_read(bgmac, BGMAC_DEV_STATUS) &
BGMAC_DS_MM_MASK) >> BGMAC_DS_MM_SHIFT;
if (imode == 0 || imode == 1) {
bgmac->mac_speed = SPEED_100;
bgmac->mac_duplex = DUPLEX_FULL;
bgmac_mac_speed(bgmac);
}
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 58 | 50.88% | 3 | 75.00% |
| hauke mehrtens | hauke mehrtens | 56 | 49.12% | 1 | 25.00% |
| Total | 114 | 100.00% | 4 | 100.00% |
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipreset */
static void bgmac_chip_reset(struct bgmac *bgmac)
{
struct bcma_device *core = bgmac->core;
struct bcma_bus *bus = core->bus;
struct bcma_chipinfo *ci = &bus->chipinfo;
u32 flags;
u32 iost;
int i;
if (bcma_core_is_enabled(core)) {
if (!bgmac->stats_grabbed) {
/* bgmac_chip_stats_update(bgmac); */
bgmac->stats_grabbed = true;
}
for (i = 0; i < BGMAC_MAX_TX_RINGS; i++)
bgmac_dma_tx_reset(bgmac, &bgmac->tx_ring[i]);
bgmac_cmdcfg_maskset(bgmac, ~0, BGMAC_CMDCFG_ML, false);
udelay(1);
for (i = 0; i < BGMAC_MAX_RX_RINGS; i++)
bgmac_dma_rx_reset(bgmac, &bgmac->rx_ring[i]);
/* TODO: Clear software multicast filter list */
}
iost = bcma_aread32(core, BCMA_IOST);
if ((ci->id == BCMA_CHIP_ID_BCM5357 && ci->pkg == BCMA_PKG_ID_BCM47186) ||
(ci->id == BCMA_CHIP_ID_BCM4749 && ci->pkg == 10) ||
(ci->id == BCMA_CHIP_ID_BCM53572 && ci->pkg == BCMA_PKG_ID_BCM47188))
iost &= ~BGMAC_BCMA_IOST_ATTACHED;
/* 3GMAC: for BCM4707 & BCM47094, only do core reset at bgmac_probe() */
if (ci->id != BCMA_CHIP_ID_BCM4707 &&
ci->id != BCMA_CHIP_ID_BCM47094) {
flags = 0;
if (iost & BGMAC_BCMA_IOST_ATTACHED) {
flags = BGMAC_BCMA_IOCTL_SW_CLKEN;
if (!bgmac->has_robosw)
flags |= BGMAC_BCMA_IOCTL_SW_RESET;
}
bcma_core_enable(core, flags);
}
/* Request Misc PLL for corerev > 2 */
if (core->id.rev > 2 && !bgmac_is_bcm4707_family(bgmac)) {
bgmac_set(bgmac, BCMA_CLKCTLST,
BGMAC_BCMA_CLKCTLST_MISC_PLL_REQ);
bgmac_wait_value(bgmac->core, BCMA_CLKCTLST,
BGMAC_BCMA_CLKCTLST_MISC_PLL_ST,
BGMAC_BCMA_CLKCTLST_MISC_PLL_ST,
1000);
}
if (ci->id == BCMA_CHIP_ID_BCM5357 ||
ci->id == BCMA_CHIP_ID_BCM4749 ||
ci->id == BCMA_CHIP_ID_BCM53572) {
struct bcma_drv_cc *cc = &bgmac->core->bus->drv_cc;
u8 et_swtype = 0;
u8 sw_type = BGMAC_CHIPCTL_1_SW_TYPE_EPHY |
BGMAC_CHIPCTL_1_IF_TYPE_MII;
char buf[4];
if (bcm47xx_nvram_getenv("et_swtype", buf, sizeof(buf)) > 0) {
if (kstrtou8(buf, 0, &et_swtype))
bgmac_err(bgmac, "Failed to parse et_swtype (%s)\n",
buf);
et_swtype &= 0x0f;
et_swtype <<= 4;
sw_type = et_swtype;
} else if (ci->id == BCMA_CHIP_ID_BCM5357 && ci->pkg == BCMA_PKG_ID_BCM5358) {
sw_type = BGMAC_CHIPCTL_1_SW_TYPE_EPHYRMII;
} else if ((ci->id == BCMA_CHIP_ID_BCM5357 && ci->pkg == BCMA_PKG_ID_BCM47186) ||
(ci->id == BCMA_CHIP_ID_BCM4749 && ci->pkg == 10) ||
(ci->id == BCMA_CHIP_ID_BCM53572 && ci->pkg == BCMA_PKG_ID_BCM47188)) {
sw_type = BGMAC_CHIPCTL_1_IF_TYPE_RGMII |
BGMAC_CHIPCTL_1_SW_TYPE_RGMII;
}
bcma_chipco_chipctl_maskset(cc, 1,
~(BGMAC_CHIPCTL_1_IF_TYPE_MASK |
BGMAC_CHIPCTL_1_SW_TYPE_MASK),
sw_type);
}
if (iost & BGMAC_BCMA_IOST_ATTACHED && !bgmac->has_robosw)
bcma_awrite32(core, BCMA_IOCTL,
bcma_aread32(core, BCMA_IOCTL) &
~BGMAC_BCMA_IOCTL_SW_RESET);
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/gmac_reset
* Specs don't say about using BGMAC_CMDCFG_SR, but in this routine
* BGMAC_CMDCFG is read _after_ putting chip in a reset. So it has to
* be keps until taking MAC out of the reset.
*/
bgmac_cmdcfg_maskset(bgmac,
~(BGMAC_CMDCFG_TE |
BGMAC_CMDCFG_RE |
BGMAC_CMDCFG_RPI |
BGMAC_CMDCFG_TAI |
BGMAC_CMDCFG_HD |
BGMAC_CMDCFG_ML |
BGMAC_CMDCFG_CFE |
BGMAC_CMDCFG_RL |
BGMAC_CMDCFG_RED |
BGMAC_CMDCFG_PE |
BGMAC_CMDCFG_TPI |
BGMAC_CMDCFG_PAD_EN |
BGMAC_CMDCFG_PF),
BGMAC_CMDCFG_PROM |
BGMAC_CMDCFG_NLC |
BGMAC_CMDCFG_CFE |
BGMAC_CMDCFG_SR(core->id.rev),
false);
bgmac->mac_speed = SPEED_UNKNOWN;
bgmac->mac_duplex = DUPLEX_UNKNOWN;
bgmac_clear_mib(bgmac);
if (core->id.id == BCMA_CORE_4706_MAC_GBIT)
bcma_maskset32(bgmac->cmn, BCMA_GMAC_CMN_PHY_CTL, ~0,
BCMA_GMAC_CMN_PC_MTE);
else
bgmac_set(bgmac, BGMAC_PHY_CNTL, BGMAC_PC_MTE);
bgmac_miiconfig(bgmac);
bgmac_phy_init(bgmac);
netdev_reset_queue(bgmac->net_dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 572 | 89.66% | 6 | 50.00% |
| hauke mehrtens | hauke mehrtens | 65 | 10.19% | 5 | 41.67% |
| ralf baechle | ralf baechle | 1 | 0.16% | 1 | 8.33% |
| Total | 638 | 100.00% | 12 | 100.00% |
static void bgmac_chip_intrs_on(struct bgmac *bgmac)
{
bgmac_write(bgmac, BGMAC_INT_MASK, bgmac->int_mask);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 22 | 100.00% | 1 | 100.00% |
| Total | 22 | 100.00% | 1 | 100.00% |
static void bgmac_chip_intrs_off(struct bgmac *bgmac)
{
bgmac_write(bgmac, BGMAC_INT_MASK, 0);
bgmac_read(bgmac, BGMAC_INT_MASK);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 20 | 74.07% | 1 | 50.00% |
| nathan hintz | nathan hintz | 7 | 25.93% | 1 | 50.00% |
| Total | 27 | 100.00% | 2 | 100.00% |
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/gmac_enable */
static void bgmac_enable(struct bgmac *bgmac)
{
struct bcma_chipinfo *ci = &bgmac->core->bus->chipinfo;
u32 cmdcfg;
u32 mode;
u32 rxq_ctl;
u32 fl_ctl;
u16 bp_clk;
u8 mdp;
cmdcfg = bgmac_read(bgmac, BGMAC_CMDCFG);
bgmac_cmdcfg_maskset(bgmac, ~(BGMAC_CMDCFG_TE | BGMAC_CMDCFG_RE),
BGMAC_CMDCFG_SR(bgmac->core->id.rev), true);
udelay(2);
cmdcfg |= BGMAC_CMDCFG_TE | BGMAC_CMDCFG_RE;
bgmac_write(bgmac, BGMAC_CMDCFG, cmdcfg);
mode = (bgmac_read(bgmac, BGMAC_DEV_STATUS) & BGMAC_DS_MM_MASK) >>
BGMAC_DS_MM_SHIFT;
if (ci->id != BCMA_CHIP_ID_BCM47162 || mode != 0)
bgmac_set(bgmac, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT);
if (ci->id == BCMA_CHIP_ID_BCM47162 && mode == 2)
bcma_chipco_chipctl_maskset(&bgmac->core->bus->drv_cc, 1, ~0,
BGMAC_CHIPCTL_1_RXC_DLL_BYPASS);
switch (ci->id) {
case BCMA_CHIP_ID_BCM5357:
case BCMA_CHIP_ID_BCM4749:
case BCMA_CHIP_ID_BCM53572:
case BCMA_CHIP_ID_BCM4716:
case BCMA_CHIP_ID_BCM47162:
fl_ctl = 0x03cb04cb;
if (ci->id == BCMA_CHIP_ID_BCM5357 ||
ci->id == BCMA_CHIP_ID_BCM4749 ||
ci->id == BCMA_CHIP_ID_BCM53572)
fl_ctl = 0x2300e1;
bgmac_write(bgmac, BGMAC_FLOW_CTL_THRESH, fl_ctl);
bgmac_write(bgmac, BGMAC_PAUSE_CTL, 0x27fff);
break;
}
if (!bgmac_is_bcm4707_family(bgmac)) {
rxq_ctl = bgmac_read(bgmac, BGMAC_RXQ_CTL);
rxq_ctl &= ~BGMAC_RXQ_CTL_MDP_MASK;
bp_clk = bcma_pmu_get_bus_clock(&bgmac->core->bus->drv_cc) /
1000000;
mdp = (bp_clk * 128 / 1000) - 3;
rxq_ctl |= (mdp << BGMAC_RXQ_CTL_MDP_SHIFT);
bgmac_write(bgmac, BGMAC_RXQ_CTL, rxq_ctl);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 289 | 95.38% | 2 | 50.00% |
| hauke mehrtens | hauke mehrtens | 14 | 4.62% | 2 | 50.00% |
| Total | 303 | 100.00% | 4 | 100.00% |
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipinit */
static void bgmac_chip_init(struct bgmac *bgmac)
{
/* 1 interrupt per received frame */
bgmac_write(bgmac, BGMAC_INT_RECV_LAZY, 1 << BGMAC_IRL_FC_SHIFT);
/* Enable 802.3x tx flow control (honor received PAUSE frames) */
bgmac_cmdcfg_maskset(bgmac, ~BGMAC_CMDCFG_RPI, 0, true);
bgmac_set_rx_mode(bgmac->net_dev);
bgmac_write_mac_address(bgmac, bgmac->net_dev->dev_addr);
if (bgmac->loopback)
bgmac_cmdcfg_maskset(bgmac, ~0, BGMAC_CMDCFG_ML, false);
else
bgmac_cmdcfg_maskset(bgmac, ~BGMAC_CMDCFG_ML, 0, false);
bgmac_write(bgmac, BGMAC_RXMAX_LENGTH, 32 + ETHER_MAX_LEN);
bgmac_chip_intrs_on(bgmac);
bgmac_enable(bgmac);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 99 | 93.40% | 2 | 50.00% |
| hauke mehrtens | hauke mehrtens | 7 | 6.60% | 2 | 50.00% |
| Total | 106 | 100.00% | 4 | 100.00% |
static irqreturn_t bgmac_interrupt(int irq, void *dev_id)
{
struct bgmac *bgmac = netdev_priv(dev_id);
u32 int_status = bgmac_read(bgmac, BGMAC_INT_STATUS);
int_status &= bgmac->int_mask;
if (!int_status)
return IRQ_NONE;
int_status &= ~(BGMAC_IS_TX0 | BGMAC_IS_RX);
if (int_status)
bgmac_err(bgmac, "Unknown IRQs: 0x%08X\n", int_status);
/* Disable new interrupts until handling existing ones */
bgmac_chip_intrs_off(bgmac);
napi_schedule(&bgmac->napi);
return IRQ_HANDLED;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 71 | 82.56% | 1 | 50.00% |
| felix fietkau | felix fietkau | 15 | 17.44% | 1 | 50.00% |
| Total | 86 | 100.00% | 2 | 100.00% |
static int bgmac_poll(struct napi_struct *napi, int weight)
{
struct bgmac *bgmac = container_of(napi, struct bgmac, napi);
int handled = 0;
/* Ack */
bgmac_write(bgmac, BGMAC_INT_STATUS, ~0);
bgmac_dma_tx_free(bgmac, &bgmac->tx_ring[0]);
handled += bgmac_dma_rx_read(bgmac, &bgmac->rx_ring[0], weight);
/* Poll again if more events arrived in the meantime */
if (bgmac_read(bgmac, BGMAC_INT_STATUS) & (BGMAC_IS_TX0 | BGMAC_IS_RX))
return weight;
if (handled < weight) {
napi_complete(napi);
bgmac_chip_intrs_on(bgmac);
}
return handled;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 84 | 73.04% | 2 | 50.00% |
| felix fietkau | felix fietkau | 29 | 25.22% | 1 | 25.00% |
| hauke mehrtens | hauke mehrtens | 2 | 1.74% | 1 | 25.00% |
| Total | 115 | 100.00% | 4 | 100.00% |
/**************************************************
* net_device_ops
**************************************************/
static int bgmac_open(struct net_device *net_dev)
{
struct bgmac *bgmac = netdev_priv(net_dev);
int err = 0;
bgmac_chip_reset(bgmac);
err = bgmac_dma_init(bgmac);
if (err)
return err;
/* Specs say about reclaiming rings here, but we do that in DMA init */
bgmac_chip_init(bgmac);
err = request_irq(bgmac->core->irq, bgmac_interrupt, IRQF_SHARED,
KBUILD_MODNAME, net_dev);
if (err < 0) {
bgmac_err(bgmac, "IRQ request error: %d!\n", err);
bgmac_dma_cleanup(bgmac);
return err;
}
napi_enable(&bgmac->napi);
phy_start(bgmac->phy_dev);
netif_start_queue(net_dev);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 90 | 76.27% | 2 | 50.00% |
| felix fietkau | felix fietkau | 23 | 19.49% | 1 | 25.00% |
| florian fainelli | florian fainelli | 5 | 4.24% | 1 | 25.00% |
| Total | 118 | 100.00% | 4 | 100.00% |
static int bgmac_stop(struct net_device *net_dev)
{
struct bgmac *bgmac = netdev_priv(net_dev);
netif_carrier_off(net_dev);
phy_stop(bgmac->phy_dev);
napi_disable(&bgmac->napi);
bgmac_chip_intrs_off(bgmac);
free_irq(bgmac->core->irq, net_dev);
bgmac_chip_reset(bgmac);
bgmac_dma_cleanup(bgmac);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 65 | 92.86% | 2 | 66.67% |
| felix fietkau | felix fietkau | 5 | 7.14% | 1 | 33.33% |
| Total | 70 | 100.00% | 3 | 100.00% |
static netdev_tx_t bgmac_start_xmit(struct sk_buff *skb,
struct net_device *net_dev)
{
struct bgmac *bgmac = netdev_priv(net_dev);
struct bgmac_dma_ring *ring;
/* No QOS support yet */
ring = &bgmac->tx_ring[0];
return bgmac_dma_tx_add(bgmac, ring, skb);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 52 | 100.00% | 1 | 100.00% |
| Total | 52 | 100.00% | 1 | 100.00% |
static int bgmac_set_mac_address(struct net_device *net_dev, void *addr)
{
struct bgmac *bgmac = netdev_priv(net_dev);
int ret;
ret = eth_prepare_mac_addr_change(net_dev, addr);
if (ret < 0)
return ret;
bgmac_write_mac_address(bgmac, (u8 *)addr);
eth_commit_mac_addr_change(net_dev, addr);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hauke mehrtens | hauke mehrtens | 67 | 100.00% | 1 | 100.00% |
| Total | 67 | 100.00% | 1 | 100.00% |
static int bgmac_ioctl(struct net_device *net_dev, struct ifreq *ifr, int cmd)
{
struct bgmac *bgmac = netdev_priv(net_dev);
if (!netif_running(net_dev))
return -EINVAL;
return phy_mii_ioctl(bgmac->phy_dev, ifr, cmd);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 48 | 90.57% | 1 | 50.00% |
| hauke mehrtens | hauke mehrtens | 5 | 9.43% | 1 | 50.00% |
| Total | 53 | 100.00% | 2 | 100.00% |
static const struct net_device_ops bgmac_netdev_ops = {
.ndo_open = bgmac_open,
.ndo_stop = bgmac_stop,
.ndo_start_xmit = bgmac_start_xmit,
.ndo_set_rx_mode = bgmac_set_rx_mode,
.ndo_set_mac_address = bgmac_set_mac_address,
.ndo_validate_addr = eth_validate_addr,
.ndo_do_ioctl = bgmac_ioctl,
};
/**************************************************
* ethtool_ops
**************************************************/
static int bgmac_get_settings(struct net_device *net_dev,
struct ethtool_cmd *cmd)
{
struct bgmac *bgmac = netdev_priv(net_dev);
return phy_ethtool_gset(bgmac->phy_dev, cmd);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 36 | 100.00% | 2 | 100.00% |
| Total | 36 | 100.00% | 2 | 100.00% |
static int bgmac_set_settings(struct net_device *net_dev,
struct ethtool_cmd *cmd)
{
struct bgmac *bgmac = netdev_priv(net_dev);
return phy_ethtool_sset(bgmac->phy_dev, cmd);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 36 | 100.00% | 2 | 100.00% |
| Total | 36 | 100.00% | 2 | 100.00% |
static void bgmac_get_drvinfo(struct net_device *net_dev,
struct ethtool_drvinfo *info)
{
strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
strlcpy(info->bus_info, "BCMA", sizeof(info->bus_info));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 48 | 100.00% | 1 | 100.00% |
| Total | 48 | 100.00% | 1 | 100.00% |
static const struct ethtool_ops bgmac_ethtool_ops = {
.get_settings = bgmac_get_settings,
.set_settings = bgmac_set_settings,
.get_drvinfo = bgmac_get_drvinfo,
};
/**************************************************
* MII
**************************************************/
static int bgmac_mii_read(struct mii_bus *bus, int mii_id, int regnum)
{
return bgmac_phy_read(bus->priv, mii_id, regnum);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static int bgmac_mii_write(struct mii_bus *bus, int mii_id, int regnum,
u16 value)
{
return bgmac_phy_write(bus->priv, mii_id, regnum, value);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 34 | 100.00% | 1 | 100.00% |
| Total | 34 | 100.00% | 1 | 100.00% |
static void bgmac_adjust_link(struct net_device *net_dev)
{
struct bgmac *bgmac = netdev_priv(net_dev);
struct phy_device *phy_dev = bgmac->phy_dev;
bool update = false;
if (phy_dev->link) {
if (phy_dev->speed != bgmac->mac_speed) {
bgmac->mac_speed = phy_dev->speed;
update = true;
}
if (phy_dev->duplex != bgmac->mac_duplex) {
bgmac->mac_duplex = phy_dev->duplex;
update = true;
}
}
if (update) {
bgmac_mac_speed(bgmac);
phy_print_status(phy_dev);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 107 | 100.00% | 1 | 100.00% |
| Total | 107 | 100.00% | 1 | 100.00% |
static int bgmac_fixed_phy_register(struct bgmac *bgmac)
{
struct fixed_phy_status fphy_status = {
.link = 1,
.speed = SPEED_1000,
.duplex = DUPLEX_FULL,
};
struct phy_device *phy_dev;
int err;
phy_dev = fixed_phy_register(PHY_POLL, &fphy_status, -1, NULL);
if (!phy_dev || IS_ERR(phy_dev)) {
bgmac_err(bgmac, "Failed to register fixed PHY device\n");
return -ENODEV;
}
err = phy_connect_direct(bgmac->net_dev, phy_dev, bgmac_adjust_link,
PHY_INTERFACE_MODE_MII);
if (err) {
bgmac_err(bgmac, "Connecting PHY failed\n");
return err;
}
bgmac->phy_dev = phy_dev;
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 115 | 97.46% | 1 | 50.00% |
| fabio estevam | fabio estevam | 3 | 2.54% | 1 | 50.00% |
| Total | 118 | 100.00% | 2 | 100.00% |
static int bgmac_mii_register(struct bgmac *bgmac)
{
struct mii_bus *mii_bus;
struct phy_device *phy_dev;
char bus_id[MII_BUS_ID_SIZE + 3];
int err = 0;
if (bgmac_is_bcm4707_family(bgmac))
return bgmac_fixed_phy_register(bgmac);
mii_bus = mdiobus_alloc();
if (!mii_bus)
return -ENOMEM;
mii_bus->name = "bgmac mii bus";
sprintf(mii_bus->id, "%s-%d-%d", "bgmac", bgmac->core->bus->num,
bgmac->core->core_unit);
mii_bus->priv = bgmac;
mii_bus->read = bgmac_mii_read;
mii_bus->write = bgmac_mii_write;
mii_bus->parent = &bgmac->core->dev;
mii_bus->phy_mask = ~(1 << bgmac->phyaddr);
err = mdiobus_register(mii_bus);
if (err) {
bgmac_err(bgmac, "Registration of mii bus failed\n");
goto err_free_bus;
}
bgmac->mii_bus = mii_bus;
/* Connect to the PHY */
snprintf(bus_id, sizeof(bus_id), PHY_ID_FMT, mii_bus->id,
bgmac->phyaddr);
phy_dev = phy_connect(bgmac->net_dev, bus_id, &bgmac_adjust_link,
PHY_INTERFACE_MODE_MII);
if (IS_ERR(phy_dev)) {
bgmac_err(bgmac, "PHY connection failed\n");
err = PTR_ERR(phy_dev);
goto err_unregister_bus;
}
bgmac->phy_dev = phy_dev;
return err;
err_unregister_bus:
mdiobus_unregister(mii_bus);
err_free_bus:
mdiobus_free(mii_bus);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 250 | 99.21% | 4 | 66.67% |
| masanari iida | masanari iida | 1 | 0.40% | 1 | 16.67% |
| andrew lunn | andrew lunn | 1 | 0.40% | 1 | 16.67% |
| Total | 252 | 100.00% | 6 | 100.00% |
static void bgmac_mii_unregister(struct bgmac *bgmac)
{
struct mii_bus *mii_bus = bgmac->mii_bus;
mdiobus_unregister(mii_bus);
mdiobus_free(mii_bus);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
/**************************************************
* BCMA bus ops
**************************************************/
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipattach */
static int bgmac_probe(struct bcma_device *core)
{
struct net_device *net_dev;
struct bgmac *bgmac;
struct ssb_sprom *sprom = &core->bus->sprom;
u8 *mac;
int err;
switch (core->core_unit) {
case 0:
mac = sprom->et0mac;
break;
case 1:
mac = sprom->et1mac;
break;
case 2:
mac = sprom->et2mac;
break;
default:
pr_err("Unsupported core_unit %d\n", core->core_unit);
return -ENOTSUPP;
}
if (!is_valid_ether_addr(mac)) {
dev_err(&core->dev, "Invalid MAC addr: %pM\n", mac);
eth_random_addr(mac);
dev_warn(&core->dev, "Using random MAC: %pM\n", mac);
}
/* This (reset &) enable is not preset in specs or reference driver but
* Broadcom does it in arch PCI code when enabling fake PCI device.
*/
bcma_core_enable(core, 0);
/* Allocation and references */
net_dev = alloc_etherdev(sizeof(*bgmac));
if (!net_dev)
return -ENOMEM;
net_dev->netdev_ops = &bgmac_netdev_ops;
net_dev->irq = core->irq;
net_dev->ethtool_ops = &bgmac_ethtool_ops;
bgmac = netdev_priv(net_dev);
bgmac->net_dev = net_dev;
bgmac->core = core;
bcma_set_drvdata(core, bgmac);
/* Defaults */
memcpy(bgmac->net_dev->dev_addr, mac, ETH_ALEN);
/* On BCM4706 we need common core to access PHY */
if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
!core->bus->drv_gmac_cmn.core) {
bgmac_err(bgmac, "GMAC CMN core not found (required for BCM4706)\n");
err = -ENODEV;
goto err_netdev_free;
}
bgmac->cmn = core->bus->drv_gmac_cmn.core;
switch (core->core_unit) {
case 0:
bgmac->phyaddr = sprom->et0phyaddr;
break;
case 1:
bgmac->phyaddr = sprom->et1phyaddr;
break;
case 2:
bgmac->phyaddr = sprom->et2phyaddr;
break;
}
bgmac->phyaddr &= BGMAC_PHY_MASK;
if (bgmac->phyaddr == BGMAC_PHY_MASK) {
bgmac_err(bgmac, "No PHY found\n");
err = -ENODEV;
goto err_netdev_free;
}
bgmac_info(bgmac, "Found PHY addr: %d%s\n", bgmac->phyaddr,
bgmac->phyaddr == BGMAC_PHY_NOREGS ? " (NOREGS)" : "");
if (core->bus->hosttype == BCMA_HOSTTYPE_PCI) {
bgmac_err(bgmac, "PCI setup not implemented\n");
err = -ENOTSUPP;
goto err_netdev_free;
}
bgmac_chip_reset(bgmac);
/* For Northstar, we have to take all GMAC core out of reset */
if (bgmac_is_bcm4707_family(bgmac)) {
struct bcma_device *ns_core;
int ns_gmac;
/* Northstar has 4 GMAC cores */
for (ns_gmac = 0; ns_gmac < 4; ns_gmac++) {
/* As Northstar requirement, we have to reset all GMACs
* before accessing one. bgmac_chip_reset() call
* bcma_core_enable() for this core. Then the other
* three GMACs didn't reset. We do it here.
*/
ns_core = bcma_find_core_unit(core->bus,
BCMA_CORE_MAC_GBIT,
ns_gmac);
if (ns_core && !bcma_core_is_enabled(ns_core))
bcma_core_enable(ns_core, 0);
}
}
err = bgmac_dma_alloc(bgmac);
if (err) {
bgmac_err(bgmac, "Unable to alloc memory for DMA\n");
goto err_netdev_free;
}
bgmac->int_mask = BGMAC_IS_ERRMASK | BGMAC_IS_RX | BGMAC_IS_TX_MASK;
if (bcm47xx_nvram_getenv("et0_no_txint", NULL, 0) == 0)
bgmac->int_mask &= ~BGMAC_IS_TX_MASK;
/* TODO: reset the external phy. Specs are needed */
bgmac_phy_reset(bgmac);
bgmac->has_robosw = !!(core->bus->sprom.boardflags_lo &
BGMAC_BFL_ENETROBO);
if (bgmac->has_robosw)
bgmac_warn(bgmac, "Support for Roboswitch not implemented\n");
if (core->bus->sprom.boardflags_lo & BGMAC_BFL_ENETADM)
bgmac_warn(bgmac, "Support for ADMtek ethernet switch not implemented\n");
netif_napi_add(net_dev, &bgmac->napi, bgmac_poll, BGMAC_WEIGHT);
err = bgmac_mii_register(bgmac);
if (err) {
bgmac_err(bgmac, "Cannot register MDIO\n");
goto err_dma_free;
}
net_dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
net_dev->hw_features = net_dev->features;
net_dev->vlan_features = net_dev->features;
err = register_netdev(bgmac->net_dev);
if (err) {
bgmac_err(bgmac, "Cannot register net device\n");
goto err_mii_unregister;
}
netif_carrier_off(net_dev);
return 0;
err_mii_unregister:
bgmac_mii_unregister(bgmac);
err_dma_free:
bgmac_dma_free(bgmac);
err_netdev_free:
bcma_set_drvdata(core, NULL);
free_netdev(net_dev);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 595 | 85.00% | 6 | 50.00% |
| hauke mehrtens | hauke mehrtens | 75 | 10.71% | 3 | 25.00% |
| felix fietkau | felix fietkau | 26 | 3.71% | 1 | 8.33% |
| wilfried klaebe | wilfried klaebe | 3 | 0.43% | 1 | 8.33% |
| ralf baechle | ralf baechle | 1 | 0.14% | 1 | 8.33% |
| Total | 700 | 100.00% | 12 | 100.00% |
static void bgmac_remove(struct bcma_device *core)
{
struct bgmac *bgmac = bcma_get_drvdata(core);
unregister_netdev(bgmac->net_dev);
bgmac_mii_unregister(bgmac);
netif_napi_del(&bgmac->napi);
bgmac_dma_free(bgmac);
bcma_set_drvdata(core, NULL);
free_netdev(bgmac->net_dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 53 | 88.33% | 2 | 66.67% |
| hauke mehrtens | hauke mehrtens | 7 | 11.67% | 1 | 33.33% |
| Total | 60 | 100.00% | 3 | 100.00% |
static struct bcma_driver bgmac_bcma_driver = {
.name = KBUILD_MODNAME,
.id_table = bgmac_bcma_tbl,
.probe = bgmac_probe,
.remove = bgmac_remove,
};
static int __init bgmac_init(void)
{
int err;
err = bcma_driver_register(&bgmac_bcma_driver);
if (err)
return err;
pr_info("Broadcom 47xx GBit MAC driver loaded\n");
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 35 | 100.00% | 1 | 100.00% |
| Total | 35 | 100.00% | 1 | 100.00% |
static void __exit bgmac_exit(void)
{
bcma_driver_unregister(&bgmac_bcma_driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
module_init(bgmac_init)
module_exit(bgmac_exit)
MODULE_AUTHOR("Rafał Miłecki");
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| rafal milecki | rafal milecki | 6373 | 76.93% | 22 | 36.67% |
| felix fietkau | felix fietkau | 1200 | 14.49% | 10 | 16.67% |
| hauke mehrtens | hauke mehrtens | 625 | 7.54% | 15 | 25.00% |
| wang weidong | wang weidong | 25 | 0.30% | 1 | 1.67% |
| nathan hintz | nathan hintz | 25 | 0.30% | 2 | 3.33% |
| florian fainelli | florian fainelli | 23 | 0.28% | 3 | 5.00% |
| wilfried klaebe | wilfried klaebe | 3 | 0.04% | 1 | 1.67% |
| fabio estevam | fabio estevam | 3 | 0.04% | 1 | 1.67% |
| ralf baechle | ralf baechle | 2 | 0.02% | 1 | 1.67% |
| joe perches | joe perches | 2 | 0.02% | 1 | 1.67% |
| masanari iida | masanari iida | 1 | 0.01% | 1 | 1.67% |
| andrew lunn | andrew lunn | 1 | 0.01% | 1 | 1.67% |
| david s. miller | david s. miller | 1 | 0.01% | 1 | 1.67% |
| Total | 8284 | 100.00% | 60 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.