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path: root/drivers/net/stmmac/dwmac100_dma.c
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Diffstat (limited to 'drivers/net/stmmac/dwmac100_dma.c')
-rw-r--r--drivers/net/stmmac/dwmac100_dma.c223
1 files changed, 4 insertions, 219 deletions
diff --git a/drivers/net/stmmac/dwmac100_dma.c b/drivers/net/stmmac/dwmac100_dma.c
index 7fcc5265050..96d098d68ad 100644
--- a/drivers/net/stmmac/dwmac100_dma.c
+++ b/drivers/net/stmmac/dwmac100_dma.c
@@ -5,7 +5,7 @@
DWC Ether MAC 10/100 Universal version 4.0 has been used for developing
this code.
- This contains the functions to handle the dma and descriptors.
+ This contains the functions to handle the dma.
Copyright (C) 2007-2009 STMicroelectronics Ltd
@@ -79,14 +79,14 @@ static void dwmac100_dump_dma_regs(unsigned long ioaddr)
{
int i;
- DBG(KERN_DEBUG "DWMAC 100 DMA CSR\n");
+ CHIP_DBG(KERN_DEBUG "DWMAC 100 DMA CSR\n");
for (i = 0; i < 9; i++)
pr_debug("\t CSR%d (offset 0x%x): 0x%08x\n", i,
(DMA_BUS_MODE + i * 4),
readl(ioaddr + DMA_BUS_MODE + i * 4));
- DBG(KERN_DEBUG "\t CSR20 (offset 0x%x): 0x%08x\n",
+ CHIP_DBG(KERN_DEBUG "\t CSR20 (offset 0x%x): 0x%08x\n",
DMA_CUR_TX_BUF_ADDR, readl(ioaddr + DMA_CUR_TX_BUF_ADDR));
- DBG(KERN_DEBUG "\t CSR21 (offset 0x%x): 0x%08x\n",
+ CHIP_DBG(KERN_DEBUG "\t CSR21 (offset 0x%x): 0x%08x\n",
DMA_CUR_RX_BUF_ADDR, readl(ioaddr + DMA_CUR_RX_BUF_ADDR));
return;
}
@@ -122,203 +122,6 @@ static void dwmac100_dma_diagnostic_fr(void *data, struct stmmac_extra_stats *x,
return;
}
-static int dwmac100_get_tx_status(void *data, struct stmmac_extra_stats *x,
- struct dma_desc *p, unsigned long ioaddr)
-{
- int ret = 0;
- struct net_device_stats *stats = (struct net_device_stats *)data;
-
- if (unlikely(p->des01.tx.error_summary)) {
- if (unlikely(p->des01.tx.underflow_error)) {
- x->tx_underflow++;
- stats->tx_fifo_errors++;
- }
- if (unlikely(p->des01.tx.no_carrier)) {
- x->tx_carrier++;
- stats->tx_carrier_errors++;
- }
- if (unlikely(p->des01.tx.loss_carrier)) {
- x->tx_losscarrier++;
- stats->tx_carrier_errors++;
- }
- if (unlikely((p->des01.tx.excessive_deferral) ||
- (p->des01.tx.excessive_collisions) ||
- (p->des01.tx.late_collision)))
- stats->collisions += p->des01.tx.collision_count;
- ret = -1;
- }
- if (unlikely(p->des01.tx.heartbeat_fail)) {
- x->tx_heartbeat++;
- stats->tx_heartbeat_errors++;
- ret = -1;
- }
- if (unlikely(p->des01.tx.deferred))
- x->tx_deferred++;
-
- return ret;
-}
-
-static int dwmac100_get_tx_len(struct dma_desc *p)
-{
- return p->des01.tx.buffer1_size;
-}
-
-/* This function verifies if each incoming frame has some errors
- * and, if required, updates the multicast statistics.
- * In case of success, it returns csum_none becasue the device
- * is not able to compute the csum in HW. */
-static int dwmac100_get_rx_status(void *data, struct stmmac_extra_stats *x,
- struct dma_desc *p)
-{
- int ret = csum_none;
- struct net_device_stats *stats = (struct net_device_stats *)data;
-
- if (unlikely(p->des01.rx.last_descriptor == 0)) {
- pr_warning("dwmac100 Error: Oversized Ethernet "
- "frame spanned multiple buffers\n");
- stats->rx_length_errors++;
- return discard_frame;
- }
-
- if (unlikely(p->des01.rx.error_summary)) {
- if (unlikely(p->des01.rx.descriptor_error))
- x->rx_desc++;
- if (unlikely(p->des01.rx.partial_frame_error))
- x->rx_partial++;
- if (unlikely(p->des01.rx.run_frame))
- x->rx_runt++;
- if (unlikely(p->des01.rx.frame_too_long))
- x->rx_toolong++;
- if (unlikely(p->des01.rx.collision)) {
- x->rx_collision++;
- stats->collisions++;
- }
- if (unlikely(p->des01.rx.crc_error)) {
- x->rx_crc++;
- stats->rx_crc_errors++;
- }
- ret = discard_frame;
- }
- if (unlikely(p->des01.rx.dribbling))
- ret = discard_frame;
-
- if (unlikely(p->des01.rx.length_error)) {
- x->rx_length++;
- ret = discard_frame;
- }
- if (unlikely(p->des01.rx.mii_error)) {
- x->rx_mii++;
- ret = discard_frame;
- }
- if (p->des01.rx.multicast_frame) {
- x->rx_multicast++;
- stats->multicast++;
- }
- return ret;
-}
-
-static void dwmac100_init_rx_desc(struct dma_desc *p, unsigned int ring_size,
- int disable_rx_ic)
-{
- int i;
- for (i = 0; i < ring_size; i++) {
- p->des01.rx.own = 1;
- p->des01.rx.buffer1_size = BUF_SIZE_2KiB - 1;
- if (i == ring_size - 1)
- p->des01.rx.end_ring = 1;
- if (disable_rx_ic)
- p->des01.rx.disable_ic = 1;
- p++;
- }
- return;
-}
-
-static void dwmac100_init_tx_desc(struct dma_desc *p, unsigned int ring_size)
-{
- int i;
- for (i = 0; i < ring_size; i++) {
- p->des01.tx.own = 0;
- if (i == ring_size - 1)
- p->des01.tx.end_ring = 1;
- p++;
- }
- return;
-}
-
-static int dwmac100_get_tx_owner(struct dma_desc *p)
-{
- return p->des01.tx.own;
-}
-
-static int dwmac100_get_rx_owner(struct dma_desc *p)
-{
- return p->des01.rx.own;
-}
-
-static void dwmac100_set_tx_owner(struct dma_desc *p)
-{
- p->des01.tx.own = 1;
-}
-
-static void dwmac100_set_rx_owner(struct dma_desc *p)
-{
- p->des01.rx.own = 1;
-}
-
-static int dwmac100_get_tx_ls(struct dma_desc *p)
-{
- return p->des01.tx.last_segment;
-}
-
-static void dwmac100_release_tx_desc(struct dma_desc *p)
-{
- int ter = p->des01.tx.end_ring;
-
- /* clean field used within the xmit */
- p->des01.tx.first_segment = 0;
- p->des01.tx.last_segment = 0;
- p->des01.tx.buffer1_size = 0;
-
- /* clean status reported */
- p->des01.tx.error_summary = 0;
- p->des01.tx.underflow_error = 0;
- p->des01.tx.no_carrier = 0;
- p->des01.tx.loss_carrier = 0;
- p->des01.tx.excessive_deferral = 0;
- p->des01.tx.excessive_collisions = 0;
- p->des01.tx.late_collision = 0;
- p->des01.tx.heartbeat_fail = 0;
- p->des01.tx.deferred = 0;
-
- /* set termination field */
- p->des01.tx.end_ring = ter;
-
- return;
-}
-
-static void dwmac100_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
- int csum_flag)
-{
- p->des01.tx.first_segment = is_fs;
- p->des01.tx.buffer1_size = len;
-}
-
-static void dwmac100_clear_tx_ic(struct dma_desc *p)
-{
- p->des01.tx.interrupt = 0;
-}
-
-static void dwmac100_close_tx_desc(struct dma_desc *p)
-{
- p->des01.tx.last_segment = 1;
- p->des01.tx.interrupt = 1;
-}
-
-static int dwmac100_get_rx_frame_len(struct dma_desc *p)
-{
- return p->des01.rx.frame_length;
-}
-
struct stmmac_dma_ops dwmac100_dma_ops = {
.init = dwmac100_dma_init,
.dump_regs = dwmac100_dump_dma_regs,
@@ -333,21 +136,3 @@ struct stmmac_dma_ops dwmac100_dma_ops = {
.stop_rx = dwmac_dma_stop_rx,
.dma_interrupt = dwmac_dma_interrupt,
};
-
-struct stmmac_desc_ops dwmac100_desc_ops = {
- .tx_status = dwmac100_get_tx_status,
- .rx_status = dwmac100_get_rx_status,
- .get_tx_len = dwmac100_get_tx_len,
- .init_rx_desc = dwmac100_init_rx_desc,
- .init_tx_desc = dwmac100_init_tx_desc,
- .get_tx_owner = dwmac100_get_tx_owner,
- .get_rx_owner = dwmac100_get_rx_owner,
- .release_tx_desc = dwmac100_release_tx_desc,
- .prepare_tx_desc = dwmac100_prepare_tx_desc,
- .clear_tx_ic = dwmac100_clear_tx_ic,
- .close_tx_desc = dwmac100_close_tx_desc,
- .get_tx_ls = dwmac100_get_tx_ls,
- .set_tx_owner = dwmac100_set_tx_owner,
- .set_rx_owner = dwmac100_set_rx_owner,
- .get_rx_frame_len = dwmac100_get_rx_frame_len,
-};