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-rw-r--r--drivers/net/stmmac/Makefile2
-rw-r--r--drivers/net/stmmac/common.h15
-rw-r--r--drivers/net/stmmac/dwmac100.h12
-rw-r--r--drivers/net/stmmac/dwmac1000.h11
-rw-r--r--drivers/net/stmmac/dwmac1000_core.c27
-rw-r--r--drivers/net/stmmac/dwmac1000_dma.c327
-rw-r--r--drivers/net/stmmac/dwmac100_core.c3
-rw-r--r--drivers/net/stmmac/dwmac100_dma.c223
-rw-r--r--drivers/net/stmmac/enh_desc.c342
-rw-r--r--drivers/net/stmmac/norm_desc.c240
-rw-r--r--drivers/net/stmmac/stmmac.h2
-rw-r--r--drivers/net/stmmac/stmmac_main.c7
12 files changed, 627 insertions, 584 deletions
diff --git a/drivers/net/stmmac/Makefile b/drivers/net/stmmac/Makefile
index b14bd56..9691733 100644
--- a/drivers/net/stmmac/Makefile
+++ b/drivers/net/stmmac/Makefile
@@ -2,4 +2,4 @@ obj-$(CONFIG_STMMAC_ETH) += stmmac.o
stmmac-$(CONFIG_STMMAC_TIMER) += stmmac_timer.o
stmmac-objs:= stmmac_main.o stmmac_ethtool.o stmmac_mdio.o \
dwmac_lib.o dwmac1000_core.o dwmac1000_dma.o \
- dwmac100_core.o dwmac100_dma.o $(stmmac-y)
+ dwmac100_core.o dwmac100_dma.o enh_desc.o norm_desc.o $(stmmac-y)
diff --git a/drivers/net/stmmac/common.h b/drivers/net/stmmac/common.h
index 2a58172..bd3b785 100644
--- a/drivers/net/stmmac/common.h
+++ b/drivers/net/stmmac/common.h
@@ -22,8 +22,21 @@
Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/
-#include "descs.h"
#include <linux/netdevice.h>
+#include "descs.h"
+
+#undef CHIP_DEBUG_PRINT
+/* Turn-on extra printk debug for MAC core, dma and descriptors */
+/* #define CHIP_DEBUG_PRINT */
+
+#ifdef CHIP_DEBUG_PRINT
+#define CHIP_DBG(fmt, args...) printk(fmt, ## args)
+#else
+#define CHIP_DBG(fmt, args...) do { } while (0)
+#endif
+
+#undef FRAME_FILTER_DEBUG
+/* #define FRAME_FILTER_DEBUG */
struct stmmac_extra_stats {
/* Transmit errors */
diff --git a/drivers/net/stmmac/dwmac100.h b/drivers/net/stmmac/dwmac100.h
index 9f4ba2e..97956cb 100644
--- a/drivers/net/stmmac/dwmac100.h
+++ b/drivers/net/stmmac/dwmac100.h
@@ -118,16 +118,4 @@ enum ttc_control {
#define DMA_MISSED_FRAME_OVE_M 0x00010000 /* Missed Frame Overflow */
#define DMA_MISSED_FRAME_M_CNTR 0x0000ffff /* Missed Frame Couinter */
-#undef DWMAC100_DEBUG
-/* #define DWMAC100__DEBUG */
-#undef FRAME_FILTER_DEBUG
-/* #define FRAME_FILTER_DEBUG */
-#ifdef DWMAC100__DEBUG
-#define DBG(fmt, args...) printk(fmt, ## args)
-#else
-#define DBG(fmt, args...) do { } while (0)
-#endif
-
extern struct stmmac_dma_ops dwmac100_dma_ops;
-extern struct stmmac_desc_ops dwmac100_desc_ops;
-
diff --git a/drivers/net/stmmac/dwmac1000.h b/drivers/net/stmmac/dwmac1000.h
index 62dca0e..3b784fc 100644
--- a/drivers/net/stmmac/dwmac1000.h
+++ b/drivers/net/stmmac/dwmac1000.h
@@ -206,15 +206,4 @@ enum rtc_control {
#define GMAC_MMC_TX_INTR 0x108
#define GMAC_MMC_RX_CSUM_OFFLOAD 0x208
-#undef DWMAC1000_DEBUG
-/* #define DWMAC1000__DEBUG */
-#undef FRAME_FILTER_DEBUG
-/* #define FRAME_FILTER_DEBUG */
-#ifdef DWMAC1000__DEBUG
-#define DBG(fmt, args...) printk(fmt, ## args)
-#else
-#define DBG(fmt, args...) do { } while (0)
-#endif
-
extern struct stmmac_dma_ops dwmac1000_dma_ops;
-extern struct stmmac_desc_ops dwmac1000_desc_ops;
diff --git a/drivers/net/stmmac/dwmac1000_core.c b/drivers/net/stmmac/dwmac1000_core.c
index f9c7c1c..0aa89ae 100644
--- a/drivers/net/stmmac/dwmac1000_core.c
+++ b/drivers/net/stmmac/dwmac1000_core.c
@@ -83,8 +83,8 @@ static void dwmac1000_set_filter(struct net_device *dev)
unsigned long ioaddr = dev->base_addr;
unsigned int value = 0;
- DBG(KERN_INFO "%s: # mcasts %d, # unicast %d\n",
- __func__, netdev_mc_count(dev), netdev_uc_count(dev));
+ CHIP_DBG(KERN_INFO "%s: # mcasts %d, # unicast %d\n",
+ __func__, netdev_mc_count(dev), netdev_uc_count(dev));
if (dev->flags & IFF_PROMISC)
value = GMAC_FRAME_FILTER_PR;
@@ -136,7 +136,7 @@ static void dwmac1000_set_filter(struct net_device *dev)
#endif
writel(value, ioaddr + GMAC_FRAME_FILTER);
- DBG(KERN_INFO "\tFrame Filter reg: 0x%08x\n\tHash regs: "
+ CHIP_DBG(KERN_INFO "\tFrame Filter reg: 0x%08x\n\tHash regs: "
"HI 0x%08x, LO 0x%08x\n", readl(ioaddr + GMAC_FRAME_FILTER),
readl(ioaddr + GMAC_HASH_HIGH), readl(ioaddr + GMAC_HASH_LOW));
@@ -148,18 +148,18 @@ static void dwmac1000_flow_ctrl(unsigned long ioaddr, unsigned int duplex,
{
unsigned int flow = 0;
- DBG(KERN_DEBUG "GMAC Flow-Control:\n");
+ CHIP_DBG(KERN_DEBUG "GMAC Flow-Control:\n");
if (fc & FLOW_RX) {
- DBG(KERN_DEBUG "\tReceive Flow-Control ON\n");
+ CHIP_DBG(KERN_DEBUG "\tReceive Flow-Control ON\n");
flow |= GMAC_FLOW_CTRL_RFE;
}
if (fc & FLOW_TX) {
- DBG(KERN_DEBUG "\tTransmit Flow-Control ON\n");
+ CHIP_DBG(KERN_DEBUG "\tTransmit Flow-Control ON\n");
flow |= GMAC_FLOW_CTRL_TFE;
}
if (duplex) {
- DBG(KERN_DEBUG "\tduplex mode: pause time: %d\n", pause_time);
+ CHIP_DBG(KERN_DEBUG "\tduplex mode: PAUSE %d\n", pause_time);
flow |= (pause_time << GMAC_FLOW_CTRL_PT_SHIFT);
}
@@ -172,10 +172,10 @@ static void dwmac1000_pmt(unsigned long ioaddr, unsigned long mode)
unsigned int pmt = 0;
if (mode == WAKE_MAGIC) {
- DBG(KERN_DEBUG "GMAC: WOL Magic frame\n");
+ CHIP_DBG(KERN_DEBUG "GMAC: WOL Magic frame\n");
pmt |= power_down | magic_pkt_en;
} else if (mode == WAKE_UCAST) {
- DBG(KERN_DEBUG "GMAC: WOL on global unicast\n");
+ CHIP_DBG(KERN_DEBUG "GMAC: WOL on global unicast\n");
pmt |= global_unicast;
}
@@ -190,16 +190,16 @@ static void dwmac1000_irq_status(unsigned long ioaddr)
/* Not used events (e.g. MMC interrupts) are not handled. */
if ((intr_status & mmc_tx_irq))
- DBG(KERN_DEBUG "GMAC: MMC tx interrupt: 0x%08x\n",
+ CHIP_DBG(KERN_DEBUG "GMAC: MMC tx interrupt: 0x%08x\n",
readl(ioaddr + GMAC_MMC_TX_INTR));
if (unlikely(intr_status & mmc_rx_irq))
- DBG(KERN_DEBUG "GMAC: MMC rx interrupt: 0x%08x\n",
+ CHIP_DBG(KERN_DEBUG "GMAC: MMC rx interrupt: 0x%08x\n",
readl(ioaddr + GMAC_MMC_RX_INTR));
if (unlikely(intr_status & mmc_rx_csum_offload_irq))
- DBG(KERN_DEBUG "GMAC: MMC rx csum offload: 0x%08x\n",
+ CHIP_DBG(KERN_DEBUG "GMAC: MMC rx csum offload: 0x%08x\n",
readl(ioaddr + GMAC_MMC_RX_CSUM_OFFLOAD));
if (unlikely(intr_status & pmt_irq)) {
- DBG(KERN_DEBUG "GMAC: received Magic frame\n");
+ CHIP_DBG(KERN_DEBUG "GMAC: received Magic frame\n");
/* clear the PMT bits 5 and 6 by reading the PMT
* status register. */
readl(ioaddr + GMAC_PMT);
@@ -230,7 +230,6 @@ struct mac_device_info *dwmac1000_setup(unsigned long ioaddr)
mac = kzalloc(sizeof(const struct mac_device_info), GFP_KERNEL);
mac->mac = &dwmac1000_ops;
- mac->desc = &dwmac1000_desc_ops;
mac->dma = &dwmac1000_dma_ops;
mac->pmt = PMT_SUPPORTED;
diff --git a/drivers/net/stmmac/dwmac1000_dma.c b/drivers/net/stmmac/dwmac1000_dma.c
index 39d436a..8d3ea99 100644
--- a/drivers/net/stmmac/dwmac1000_dma.c
+++ b/drivers/net/stmmac/dwmac1000_dma.c
@@ -3,7 +3,7 @@
DWC Ether MAC 10/100/1000 Universal version 3.41a 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
@@ -73,14 +73,14 @@ static void dwmac1000_dma_operation_mode(unsigned long ioaddr, int txmode,
u32 csr6 = readl(ioaddr + DMA_CONTROL);
if (txmode == SF_DMA_MODE) {
- DBG(KERN_DEBUG "GMAC: enabling TX store and forward mode\n");
+ CHIP_DBG(KERN_DEBUG "GMAC: enable TX store and forward mode\n");
/* Transmit COE type 2 cannot be done in cut-through mode. */
csr6 |= DMA_CONTROL_TSF;
/* Operating on second frame increase the performance
* especially when transmit store-and-forward is used.*/
csr6 |= DMA_CONTROL_OSF;
} else {
- DBG(KERN_DEBUG "GMAC: disabling TX store and forward mode"
+ CHIP_DBG(KERN_DEBUG "GMAC: disabling TX store and forward mode"
" (threshold = %d)\n", txmode);
csr6 &= ~DMA_CONTROL_TSF;
csr6 &= DMA_CONTROL_TC_TX_MASK;
@@ -98,10 +98,10 @@ static void dwmac1000_dma_operation_mode(unsigned long ioaddr, int txmode,
}
if (rxmode == SF_DMA_MODE) {
- DBG(KERN_DEBUG "GMAC: enabling RX store and forward mode\n");
+ CHIP_DBG(KERN_DEBUG "GMAC: enable RX store and forward mode\n");
csr6 |= DMA_CONTROL_RSF;
} else {
- DBG(KERN_DEBUG "GMAC: disabling RX store and forward mode"
+ CHIP_DBG(KERN_DEBUG "GMAC: disabling RX store and forward mode"
" (threshold = %d)\n", rxmode);
csr6 &= ~DMA_CONTROL_RSF;
csr6 &= DMA_CONTROL_TC_RX_MASK;
@@ -141,305 +141,6 @@ static void dwmac1000_dump_dma_regs(unsigned long ioaddr)
return;
}
-static int dwmac1000_get_tx_frame_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.etx.error_summary)) {
- DBG(KERN_ERR "GMAC TX error... 0x%08x\n", p->des01.etx);
- if (unlikely(p->des01.etx.jabber_timeout)) {
- DBG(KERN_ERR "\tjabber_timeout error\n");
- x->tx_jabber++;
- }
-
- if (unlikely(p->des01.etx.frame_flushed)) {
- DBG(KERN_ERR "\tframe_flushed error\n");
- x->tx_frame_flushed++;
- dwmac1000_flush_tx_fifo(ioaddr);
- }
-
- if (unlikely(p->des01.etx.loss_carrier)) {
- DBG(KERN_ERR "\tloss_carrier error\n");
- x->tx_losscarrier++;
- stats->tx_carrier_errors++;
- }
- if (unlikely(p->des01.etx.no_carrier)) {
- DBG(KERN_ERR "\tno_carrier error\n");
- x->tx_carrier++;
- stats->tx_carrier_errors++;
- }
- if (unlikely(p->des01.etx.late_collision)) {
- DBG(KERN_ERR "\tlate_collision error\n");
- stats->collisions += p->des01.etx.collision_count;
- }
- if (unlikely(p->des01.etx.excessive_collisions)) {
- DBG(KERN_ERR "\texcessive_collisions\n");
- stats->collisions += p->des01.etx.collision_count;
- }
- if (unlikely(p->des01.etx.excessive_deferral)) {
- DBG(KERN_INFO "\texcessive tx_deferral\n");
- x->tx_deferred++;
- }
-
- if (unlikely(p->des01.etx.underflow_error)) {
- DBG(KERN_ERR "\tunderflow error\n");
- dwmac1000_flush_tx_fifo(ioaddr);
- x->tx_underflow++;
- }
-
- if (unlikely(p->des01.etx.ip_header_error)) {
- DBG(KERN_ERR "\tTX IP header csum error\n");
- x->tx_ip_header_error++;
- }
-
- if (unlikely(p->des01.etx.payload_error)) {
- DBG(KERN_ERR "\tAddr/Payload csum error\n");
- x->tx_payload_error++;
- dwmac1000_flush_tx_fifo(ioaddr);
- }
-
- ret = -1;
- }
-
- if (unlikely(p->des01.etx.deferred)) {
- DBG(KERN_INFO "GMAC TX status: tx deferred\n");
- x->tx_deferred++;
- }
-#ifdef STMMAC_VLAN_TAG_USED
- if (p->des01.etx.vlan_frame) {
- DBG(KERN_INFO "GMAC TX status: VLAN frame\n");
- x->tx_vlan++;
- }
-#endif
-
- return ret;
-}
-
-static int dwmac1000_get_tx_len(struct dma_desc *p)
-{
- return p->des01.etx.buffer1_size;
-}
-
-static int dwmac1000_coe_rdes0(int ipc_err, int type, int payload_err)
-{
- int ret = good_frame;
- u32 status = (type << 2 | ipc_err << 1 | payload_err) & 0x7;
-
- /* bits 5 7 0 | Frame status
- * ----------------------------------------------------------
- * 0 0 0 | IEEE 802.3 Type frame (length < 1536 octects)
- * 1 0 0 | IPv4/6 No CSUM errorS.
- * 1 0 1 | IPv4/6 CSUM PAYLOAD error
- * 1 1 0 | IPv4/6 CSUM IP HR error
- * 1 1 1 | IPv4/6 IP PAYLOAD AND HEADER errorS
- * 0 0 1 | IPv4/6 unsupported IP PAYLOAD
- * 0 1 1 | COE bypassed.. no IPv4/6 frame
- * 0 1 0 | Reserved.
- */
- if (status == 0x0) {
- DBG(KERN_INFO "RX Des0 status: IEEE 802.3 Type frame.\n");
- ret = good_frame;
- } else if (status == 0x4) {
- DBG(KERN_INFO "RX Des0 status: IPv4/6 No CSUM errorS.\n");
- ret = good_frame;
- } else if (status == 0x5) {
- DBG(KERN_ERR "RX Des0 status: IPv4/6 Payload Error.\n");
- ret = csum_none;
- } else if (status == 0x6) {
- DBG(KERN_ERR "RX Des0 status: IPv4/6 Header Error.\n");
- ret = csum_none;
- } else if (status == 0x7) {
- DBG(KERN_ERR
- "RX Des0 status: IPv4/6 Header and Payload Error.\n");
- ret = csum_none;
- } else if (status == 0x1) {
- DBG(KERN_ERR
- "RX Des0 status: IPv4/6 unsupported IP PAYLOAD.\n");
- ret = discard_frame;
- } else if (status == 0x3) {
- DBG(KERN_ERR "RX Des0 status: No IPv4, IPv6 frame.\n");
- ret = discard_frame;
- }
- return ret;
-}
-
-static int dwmac1000_get_rx_frame_status(void *data,
- struct stmmac_extra_stats *x, struct dma_desc *p)
-{
- int ret = good_frame;
- struct net_device_stats *stats = (struct net_device_stats *)data;
-
- if (unlikely(p->des01.erx.error_summary)) {
- DBG(KERN_ERR "GMAC RX Error Summary... 0x%08x\n", p->des01.erx);
- if (unlikely(p->des01.erx.descriptor_error)) {
- DBG(KERN_ERR "\tdescriptor error\n");
- x->rx_desc++;
- stats->rx_length_errors++;
- }
- if (unlikely(p->des01.erx.overflow_error)) {
- DBG(KERN_ERR "\toverflow error\n");
- x->rx_gmac_overflow++;
- }
-
- if (unlikely(p->des01.erx.ipc_csum_error))
- DBG(KERN_ERR "\tIPC Csum Error/Giant frame\n");
-
- if (unlikely(p->des01.erx.late_collision)) {
- DBG(KERN_ERR "\tlate_collision error\n");
- stats->collisions++;
- stats->collisions++;
- }
- if (unlikely(p->des01.erx.receive_watchdog)) {
- DBG(KERN_ERR "\treceive_watchdog error\n");
- x->rx_watchdog++;
- }
- if (unlikely(p->des01.erx.error_gmii)) {
- DBG(KERN_ERR "\tReceive Error\n");
- x->rx_mii++;
- }
- if (unlikely(p->des01.erx.crc_error)) {
- DBG(KERN_ERR "\tCRC error\n");
- x->rx_crc++;
- stats->rx_crc_errors++;
- }
- ret = discard_frame;
- }
-
- /* After a payload csum error, the ES bit is set.
- * It doesn't match with the information reported into the databook.
- * At any rate, we need to understand if the CSUM hw computation is ok
- * and report this info to the upper layers. */
- ret = dwmac1000_coe_rdes0(p->des01.erx.ipc_csum_error,
- p->des01.erx.frame_type, p->des01.erx.payload_csum_error);
-
- if (unlikely(p->des01.erx.dribbling)) {
- DBG(KERN_ERR "GMAC RX: dribbling error\n");
- ret = discard_frame;
- }
- if (unlikely(p->des01.erx.sa_filter_fail)) {
- DBG(KERN_ERR "GMAC RX : Source Address filter fail\n");
- x->sa_rx_filter_fail++;
- ret = discard_frame;
- }
- if (unlikely(p->des01.erx.da_filter_fail)) {
- DBG(KERN_ERR "GMAC RX : Destination Address filter fail\n");
- x->da_rx_filter_fail++;
- ret = discard_frame;
- }
- if (unlikely(p->des01.erx.length_error)) {
- DBG(KERN_ERR "GMAC RX: length_error error\n");
- x->rx_length++;
- ret = discard_frame;
- }
-#ifdef STMMAC_VLAN_TAG_USED
- if (p->des01.erx.vlan_tag) {
- DBG(KERN_INFO "GMAC RX: VLAN frame tagged\n");
- x->rx_vlan++;
- }
-#endif
- return ret;
-}
-
-static void dwmac1000_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.erx.own = 1;
- p->des01.erx.buffer1_size = BUF_SIZE_8KiB - 1;
- /* To support jumbo frames */
- p->des01.erx.buffer2_size = BUF_SIZE_8KiB - 1;
- if (i == ring_size - 1)
- p->des01.erx.end_ring = 1;
- if (disable_rx_ic)
- p->des01.erx.disable_ic = 1;
- p++;
- }
- return;
-}
-
-static void dwmac1000_init_tx_desc(struct dma_desc *p, unsigned int ring_size)
-{
- int i;
-
- for (i = 0; i < ring_size; i++) {
- p->des01.etx.own = 0;
- if (i == ring_size - 1)
- p->des01.etx.end_ring = 1;
- p++;
- }
-
- return;
-}
-
-static int dwmac1000_get_tx_owner(struct dma_desc *p)
-{
- return p->des01.etx.own;
-}
-
-static int dwmac1000_get_rx_owner(struct dma_desc *p)
-{
- return p->des01.erx.own;
-}
-
-static void dwmac1000_set_tx_owner(struct dma_desc *p)
-{
- p->des01.etx.own = 1;
-}
-
-static void dwmac1000_set_rx_owner(struct dma_desc *p)
-{
- p->des01.erx.own = 1;
-}
-
-static int dwmac1000_get_tx_ls(struct dma_desc *p)
-{
- return p->des01.etx.last_segment;
-}
-
-static void dwmac1000_release_tx_desc(struct dma_desc *p)
-{
- int ter = p->des01.etx.end_ring;
-
- memset(p, 0, sizeof(struct dma_desc));
- p->des01.etx.end_ring = ter;
-
- return;
-}
-
-static void dwmac1000_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
- int csum_flag)
-{
- p->des01.etx.first_segment = is_fs;
- if (unlikely(len > BUF_SIZE_4KiB)) {
- p->des01.etx.buffer1_size = BUF_SIZE_4KiB;
- p->des01.etx.buffer2_size = len - BUF_SIZE_4KiB;
- } else {
- p->des01.etx.buffer1_size = len;
- }
- if (likely(csum_flag))
- p->des01.etx.checksum_insertion = cic_full;
-}
-
-static void dwmac1000_clear_tx_ic(struct dma_desc *p)
-{
- p->des01.etx.interrupt = 0;
-}
-
-static void dwmac1000_close_tx_desc(struct dma_desc *p)
-{
- p->des01.etx.last_segment = 1;
- p->des01.etx.interrupt = 1;
-}
-
-static int dwmac1000_get_rx_frame_len(struct dma_desc *p)
-{
- return p->des01.erx.frame_length;
-}
-
struct stmmac_dma_ops dwmac1000_dma_ops = {
.init = dwmac1000_dma_init,
.dump_regs = dwmac1000_dump_dma_regs,
@@ -454,21 +155,3 @@ struct stmmac_dma_ops dwmac1000_dma_ops = {
.stop_rx = dwmac_dma_stop_rx,
.dma_interrupt = dwmac_dma_interrupt,
};
-
-struct stmmac_desc_ops dwmac1000_desc_ops = {
- .tx_status = dwmac1000_get_tx_frame_status,
- .rx_status = dwmac1000_get_rx_frame_status,
- .get_tx_len = dwmac1000_get_tx_len,
- .init_rx_desc = dwmac1000_init_rx_desc,
- .init_tx_desc = dwmac1000_init_tx_desc,
- .get_tx_owner = dwmac1000_get_tx_owner,
- .get_rx_owner = dwmac1000_get_rx_owner,
- .release_tx_desc = dwmac1000_release_tx_desc,
- .prepare_tx_desc = dwmac1000_prepare_tx_desc,
- .clear_tx_ic = dwmac1000_clear_tx_ic,
- .close_tx_desc = dwmac1000_close_tx_desc,
- .get_tx_ls = dwmac1000_get_tx_ls,
- .set_tx_owner = dwmac1000_set_tx_owner,
- .set_rx_owner = dwmac1000_set_rx_owner,
- .get_rx_frame_len = dwmac1000_get_rx_frame_len,
-};
diff --git a/drivers/net/stmmac/dwmac100_core.c b/drivers/net/stmmac/dwmac100_core.c
index 8ecb8c0..fab14a4 100644
--- a/drivers/net/stmmac/dwmac100_core.c
+++ b/drivers/net/stmmac/dwmac100_core.c
@@ -141,7 +141,7 @@ static void dwmac100_set_filter(struct net_device *dev)
writel(value, ioaddr + MAC_CONTROL);
- DBG(KERN_INFO "%s: CTRL reg: 0x%08x Hash regs: "
+ CHIP_DBG(KERN_INFO "%s: CTRL reg: 0x%08x Hash regs: "
"HI 0x%08x, LO 0x%08x\n",
__func__, readl(ioaddr + MAC_CONTROL),
readl(ioaddr + MAC_HASH_HIGH), readl(ioaddr + MAC_HASH_LOW));
@@ -188,7 +188,6 @@ struct mac_device_info *dwmac100_setup(unsigned long ioaddr)
pr_info("\tDWMAC100\n");
mac->mac = &dwmac100_ops;
- mac->desc = &dwmac100_desc_ops;
mac->dma = &dwmac100_dma_ops;
mac->pmt = PMT_NOT_SUPPORTED;
diff --git a/drivers/net/stmmac/dwmac100_dma.c b/drivers/net/stmmac/dwmac100_dma.c
index 7fcc526..96d098d 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,
-};
diff --git a/drivers/net/stmmac/enh_desc.c b/drivers/net/stmmac/enh_desc.c
new file mode 100644
index 0000000..e5ac259
--- /dev/null
+++ b/drivers/net/stmmac/enh_desc.c
@@ -0,0 +1,342 @@
+/*******************************************************************************
+ This contains the functions to handle the enhanced descriptors.
+
+ Copyright (C) 2007-2009 STMicroelectronics Ltd
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
+*******************************************************************************/
+
+#include "common.h"
+
+static int enh_desc_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.etx.error_summary)) {
+ CHIP_DBG(KERN_ERR "GMAC TX error... 0x%08x\n", p->des01.etx);
+ if (unlikely(p->des01.etx.jabber_timeout)) {
+ CHIP_DBG(KERN_ERR "\tjabber_timeout error\n");
+ x->tx_jabber++;
+ }
+
+ if (unlikely(p->des01.etx.frame_flushed)) {
+ CHIP_DBG(KERN_ERR "\tframe_flushed error\n");
+ x->tx_frame_flushed++;
+ /*enh_desc_flush_tx_fifo(ioaddr);*/
+ }
+
+ if (unlikely(p->des01.etx.loss_carrier)) {
+ CHIP_DBG(KERN_ERR "\tloss_carrier error\n");
+ x->tx_losscarrier++;
+ stats->tx_carrier_errors++;
+ }
+ if (unlikely(p->des01.etx.no_carrier)) {
+ CHIP_DBG(KERN_ERR "\tno_carrier error\n");
+ x->tx_carrier++;
+ stats->tx_carrier_errors++;
+ }
+ if (unlikely(p->des01.etx.late_collision)) {
+ CHIP_DBG(KERN_ERR "\tlate_collision error\n");
+ stats->collisions += p->des01.etx.collision_count;
+ }
+ if (unlikely(p->des01.etx.excessive_collisions)) {
+ CHIP_DBG(KERN_ERR "\texcessive_collisions\n");
+ stats->collisions += p->des01.etx.collision_count;
+ }
+ if (unlikely(p->des01.etx.excessive_deferral)) {
+ CHIP_DBG(KERN_INFO "\texcessive tx_deferral\n");
+ x->tx_deferred++;
+ }
+
+ if (unlikely(p->des01.etx.underflow_error)) {
+ CHIP_DBG(KERN_ERR "\tunderflow error\n");
+ /*enh_desc_flush_tx_fifo(ioaddr);*/
+ x->tx_underflow++;
+ }
+
+ if (unlikely(p->des01.etx.ip_header_error)) {
+ CHIP_DBG(KERN_ERR "\tTX IP header csum error\n");
+ x->tx_ip_header_error++;
+ }
+
+ if (unlikely(p->des01.etx.payload_error)) {
+ CHIP_DBG(KERN_ERR "\tAddr/Payload csum error\n");
+ x->tx_payload_error++;
+ /*enh_desc_flush_tx_fifo(ioaddr);*/
+ }
+
+ ret = -1;
+ }
+
+ if (unlikely(p->des01.etx.deferred)) {
+ CHIP_DBG(KERN_INFO "GMAC TX status: tx deferred\n");
+ x->tx_deferred++;
+ }
+#ifdef STMMAC_VLAN_TAG_USED
+ if (p->des01.etx.vlan_frame) {
+ CHIP_DBG(KERN_INFO "GMAC TX status: VLAN frame\n");
+ x->tx_vlan++;
+ }
+#endif
+
+ return ret;
+}
+
+static int enh_desc_get_tx_len(struct dma_desc *p)
+{
+ return p->des01.etx.buffer1_size;
+}
+
+static int enh_desc_coe_rdes0(int ipc_err, int type, int payload_err)
+{
+ int ret = good_frame;
+ u32 status = (type << 2 | ipc_err << 1 | payload_err) & 0x7;
+
+ /* bits 5 7 0 | Frame status
+ * ----------------------------------------------------------
+ * 0 0 0 | IEEE 802.3 Type frame (length < 1536 octects)
+ * 1 0 0 | IPv4/6 No CSUM errorS.
+ * 1 0 1 | IPv4/6 CSUM PAYLOAD error
+ * 1 1 0 | IPv4/6 CSUM IP HR error
+ * 1 1 1 | IPv4/6 IP PAYLOAD AND HEADER errorS
+ * 0 0 1 | IPv4/6 unsupported IP PAYLOAD
+ * 0 1 1 | COE bypassed.. no IPv4/6 frame
+ * 0 1 0 | Reserved.
+ */
+ if (status == 0x0) {
+ CHIP_DBG(KERN_INFO "RX Des0 status: IEEE 802.3 Type frame.\n");
+ ret = good_frame;
+ } else if (status == 0x4) {
+ CHIP_DBG(KERN_INFO "RX Des0 status: IPv4/6 No CSUM errorS.\n");
+ ret = good_frame;
+ } else if (status == 0x5) {
+ CHIP_DBG(KERN_ERR "RX Des0 status: IPv4/6 Payload Error.\n");
+ ret = csum_none;
+ } else if (status == 0x6) {
+ CHIP_DBG(KERN_ERR "RX Des0 status: IPv4/6 Header Error.\n");
+ ret = csum_none;
+ } else if (status == 0x7) {
+ CHIP_DBG(KERN_ERR
+ "RX Des0 status: IPv4/6 Header and Payload Error.\n");
+ ret = csum_none;
+ } else if (status == 0x1) {
+ CHIP_DBG(KERN_ERR
+ "RX Des0 status: IPv4/6 unsupported IP PAYLOAD.\n");
+ ret = discard_frame;
+ } else if (status == 0x3) {
+ CHIP_DBG(KERN_ERR "RX Des0 status: No IPv4, IPv6 frame.\n");
+ ret = discard_frame;
+ }
+ return ret;
+}
+
+static int enh_desc_get_rx_status(void *data, struct stmmac_extra_stats *x,
+ struct dma_desc *p)
+{
+ int ret = good_frame;
+ struct net_device_stats *stats = (struct net_device_stats *)data;
+
+ if (unlikely(p->des01.erx.error_summary)) {
+ CHIP_DBG(KERN_ERR "GMAC RX Error Summary 0x%08x\n",
+ p->des01.erx);
+ if (unlikely(p->des01.erx.descriptor_error)) {
+ CHIP_DBG(KERN_ERR "\tdescriptor error\n");
+ x->rx_desc++;
+ stats->rx_length_errors++;
+ }
+ if (unlikely(p->des01.erx.overflow_error)) {
+ CHIP_DBG(KERN_ERR "\toverflow error\n");
+ x->rx_gmac_overflow++;
+ }
+
+ if (unlikely(p->des01.erx.ipc_csum_error))
+ CHIP_DBG(KERN_ERR "\tIPC Csum Error/Giant frame\n");
+
+ if (unlikely(p->des01.erx.late_collision)) {
+ CHIP_DBG(KERN_ERR "\tlate_collision error\n");
+ stats->collisions++;
+ stats->collisions++;
+ }
+ if (unlikely(p->des01.erx.receive_watchdog)) {
+ CHIP_DBG(KERN_ERR "\treceive_watchdog error\n");
+ x->rx_watchdog++;
+ }
+ if (unlikely(p->des01.erx.error_gmii)) {
+ CHIP_DBG(KERN_ERR "\tReceive Error\n");
+ x->rx_mii++;
+ }
+ if (unlikely(p->des01.erx.crc_error)) {
+ CHIP_DBG(KERN_ERR "\tCRC error\n");
+ x->rx_crc++;
+ stats->rx_crc_errors++;
+ }
+ ret = discard_frame;
+ }
+
+ /* After a payload csum error, the ES bit is set.
+ * It doesn't match with the information reported into the databook.
+ * At any rate, we need to understand if the CSUM hw computation is ok
+ * and report this info to the upper layers. */
+ ret = enh_desc_coe_rdes0(p->des01.erx.ipc_csum_error,
+ p->des01.erx.frame_type, p->des01.erx.payload_csum_error);
+
+ if (unlikely(p->des01.erx.dribbling)) {
+ CHIP_DBG(KERN_ERR "GMAC RX: dribbling error\n");
+ ret = discard_frame;
+ }
+ if (unlikely(p->des01.erx.sa_filter_fail)) {
+ CHIP_DBG(KERN_ERR "GMAC RX : Source Address filter fail\n");
+ x->sa_rx_filter_fail++;
+ ret = discard_frame;
+ }
+ if (unlikely(p->des01.erx.da_filter_fail)) {
+ CHIP_DBG(KERN_ERR "GMAC RX : Dest Address filter fail\n");
+ x->da_rx_filter_fail++;
+ ret = discard_frame;
+ }
+ if (unlikely(p->des01.erx.length_error)) {
+ CHIP_DBG(KERN_ERR "GMAC RX: length_error error\n");
+ x->rx_length++;
+ ret = discard_frame;
+ }
+#ifdef STMMAC_VLAN_TAG_USED
+ if (p->des01.erx.vlan_tag) {
+ CHIP_DBG(KERN_INFO "GMAC RX: VLAN frame tagged\n");
+ x->rx_vlan++;
+ }
+#endif
+ return ret;
+}
+
+static void enh_desc_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.erx.own = 1;
+ p->des01.erx.buffer1_size = BUF_SIZE_8KiB - 1;
+ /* To support jumbo frames */
+ p->des01.erx.buffer2_size = BUF_SIZE_8KiB - 1;
+ if (i == ring_size - 1)
+ p->des01.erx.end_ring = 1;
+ if (disable_rx_ic)
+ p->des01.erx.disable_ic = 1;
+ p++;
+ }
+ return;
+}
+
+static void enh_desc_init_tx_desc(struct dma_desc *p, unsigned int ring_size)
+{
+ int i;
+
+ for (i = 0; i < ring_size; i++) {
+ p->des01.etx.own = 0;
+ if (i == ring_size - 1)
+ p->des01.etx.end_ring = 1;
+ p++;
+ }
+
+ return;
+}
+
+static int enh_desc_get_tx_owner(struct dma_desc *p)
+{
+ return p->des01.etx.own;
+}
+
+static int enh_desc_get_rx_owner(struct dma_desc *p)
+{
+ return p->des01.erx.own;
+}
+
+static void enh_desc_set_tx_owner(struct dma_desc *p)
+{
+ p->des01.etx.own = 1;
+}
+
+static void enh_desc_set_rx_owner(struct dma_desc *p)
+{
+ p->des01.erx.own = 1;
+}
+
+static int enh_desc_get_tx_ls(struct dma_desc *p)
+{
+ return p->des01.etx.last_segment;
+}
+
+static void enh_desc_release_tx_desc(struct dma_desc *p)
+{
+ int ter = p->des01.etx.end_ring;
+
+ memset(p, 0, sizeof(struct dma_desc));
+ p->des01.etx.end_ring = ter;
+
+ return;
+}
+
+static void enh_desc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
+ int csum_flag)
+{
+ p->des01.etx.first_segment = is_fs;
+ if (unlikely(len > BUF_SIZE_4KiB)) {
+ p->des01.etx.buffer1_size = BUF_SIZE_4KiB;
+ p->des01.etx.buffer2_size = len - BUF_SIZE_4KiB;
+ } else {
+ p->des01.etx.buffer1_size = len;
+ }
+ if (likely(csum_flag))
+ p->des01.etx.checksum_insertion = cic_full;
+}
+
+static void enh_desc_clear_tx_ic(struct dma_desc *p)
+{
+ p->des01.etx.interrupt = 0;
+}
+
+static void enh_desc_close_tx_desc(struct dma_desc *p)
+{
+ p->des01.etx.last_segment = 1;
+ p->des01.etx.interrupt = 1;
+}
+
+static int enh_desc_get_rx_frame_len(struct dma_desc *p)
+{
+ return p->des01.erx.frame_length;
+}
+
+struct stmmac_desc_ops enh_desc_ops = {
+ .tx_status = enh_desc_get_tx_status,
+ .rx_status = enh_desc_get_rx_status,
+ .get_tx_len = enh_desc_get_tx_len,
+ .init_rx_desc = enh_desc_init_rx_desc,
+ .init_tx_desc = enh_desc_init_tx_desc,
+ .get_tx_owner = enh_desc_get_tx_owner,
+ .get_rx_owner = enh_desc_get_rx_owner,
+ .release_tx_desc = enh_desc_release_tx_desc,
+ .prepare_tx_desc = enh_desc_prepare_tx_desc,
+ .clear_tx_ic = enh_desc_clear_tx_ic,
+ .close_tx_desc = enh_desc_close_tx_desc,
+ .get_tx_ls = enh_desc_get_tx_ls,
+ .set_tx_owner = enh_desc_set_tx_owner,
+ .set_rx_owner = enh_desc_set_rx_owner,
+ .get_rx_frame_len = enh_desc_get_rx_frame_len,
+};
diff --git a/drivers/net/stmmac/norm_desc.c b/drivers/net/stmmac/norm_desc.c
new file mode 100644
index 0000000..ecfcc00
--- /dev/null
+++ b/drivers/net/stmmac/norm_desc.c
@@ -0,0 +1,240 @@
+/*******************************************************************************
+ This contains the functions to handle the normal descriptors.
+
+ Copyright (C) 2007-2009 STMicroelectronics Ltd
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
+*******************************************************************************/
+
+#include "common.h"
+
+static int ndesc_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 ndesc_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 ndesc_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("ndesc 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 ndesc_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 ndesc_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 ndesc_get_tx_owner(struct dma_desc *p)
+{
+ return p->des01.tx.own;
+}
+
+static int ndesc_get_rx_owner(struct dma_desc *p)
+{
+ return p->des01.rx.own;
+}
+
+static void ndesc_set_tx_owner(struct dma_desc *p)
+{
+ p->des01.tx.own = 1;
+}
+
+static void ndesc_set_rx_owner(struct dma_desc *p)
+{
+ p->des01.rx.own = 1;
+}
+
+static int ndesc_get_tx_ls(struct dma_desc *p)
+{
+ return p->des01.tx.last_segment;
+}
+
+static void ndesc_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 ndesc_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 ndesc_clear_tx_ic(struct dma_desc *p)
+{
+ p->des01.tx.interrupt = 0;
+}
+
+static void ndesc_close_tx_desc(struct dma_desc *p)
+{
+ p->des01.tx.last_segment = 1;
+ p->des01.tx.interrupt = 1;
+}
+
+static int ndesc_get_rx_frame_len(struct dma_desc *p)
+{
+ return p->des01.rx.frame_length;
+}
+
+struct stmmac_desc_ops ndesc_ops = {
+ .tx_status = ndesc_get_tx_status,
+ .rx_status = ndesc_get_rx_status,
+ .get_tx_len = ndesc_get_tx_len,
+ .init_rx_desc = ndesc_init_rx_desc,
+ .init_tx_desc = ndesc_init_tx_desc,
+ .get_tx_owner = ndesc_get_tx_owner,
+ .get_rx_owner = ndesc_get_rx_owner,
+ .release_tx_desc = ndesc_release_tx_desc,
+ .prepare_tx_desc = ndesc_prepare_tx_desc,
+ .clear_tx_ic = ndesc_clear_tx_ic,
+ .close_tx_desc = ndesc_close_tx_desc,
+ .get_tx_ls = ndesc_get_tx_ls,
+ .set_tx_owner = ndesc_set_tx_owner,
+ .set_rx_owner = ndesc_set_rx_owner,
+ .get_rx_frame_len = ndesc_get_rx_frame_len,
+};
diff --git a/drivers/net/stmmac/stmmac.h b/drivers/net/stmmac/stmmac.h
index ba35e69..55b9aca 100644
--- a/drivers/net/stmmac/stmmac.h
+++ b/drivers/net/stmmac/stmmac.h
@@ -120,3 +120,5 @@ static inline int stmmac_claim_resource(struct platform_device *pdev)
extern int stmmac_mdio_unregister(struct net_device *ndev);
extern int stmmac_mdio_register(struct net_device *ndev);
extern void stmmac_set_ethtool_ops(struct net_device *netdev);
+extern struct stmmac_desc_ops enh_desc_ops;
+extern struct stmmac_desc_ops ndesc_ops;
diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
index cbe2404..dfeea96 100644
--- a/drivers/net/stmmac/stmmac_main.c
+++ b/drivers/net/stmmac/stmmac_main.c
@@ -1581,10 +1581,13 @@ static int stmmac_mac_device_setup(struct net_device *dev)
struct mac_device_info *device;
- if (priv->is_gmac)
+ if (priv->is_gmac) {
device = dwmac1000_setup(ioaddr);
- else
+ device->desc = &enh_desc_ops;
+ } else {
device = dwmac100_setup(ioaddr);
+ device->desc = &ndesc_ops;
+ }
if (!device)
return -ENOMEM;
generated by cgit v1.1 at 2024-09-16 00:00:26 +0000