#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/in.h>
+#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <linux/etherdevice.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
-#include <linux/mii.h>
+#include <linux/phy.h>
#include <linux/mv643xx_eth.h>
-#include <asm/io.h>
-#include <asm/types.h>
+#include <linux/io.h>
+#include <linux/types.h>
+#include <linux/inet_lro.h>
#include <asm/system.h>
+#include <linux/list.h>
static char mv643xx_eth_driver_name[] = "mv643xx_eth";
-static char mv643xx_eth_driver_version[] = "1.3";
+static char mv643xx_eth_driver_version[] = "1.4";
/*
#define WINDOW_PROTECT(w) (0x0294 + ((w) << 4))
/*
- * Per-port registers.
+ * Main per-port registers. These live at offset 0x0400 for
+ * port #0, 0x0800 for port #1, and 0x0c00 for port #2.
*/
-#define PORT_CONFIG(p) (0x0400 + ((p) << 10))
+#define PORT_CONFIG 0x0000
#define UNICAST_PROMISCUOUS_MODE 0x00000001
-#define PORT_CONFIG_EXT(p) (0x0404 + ((p) << 10))
-#define MAC_ADDR_LOW(p) (0x0414 + ((p) << 10))
-#define MAC_ADDR_HIGH(p) (0x0418 + ((p) << 10))
-#define SDMA_CONFIG(p) (0x041c + ((p) << 10))
-#define PORT_SERIAL_CONTROL(p) (0x043c + ((p) << 10))
-#define PORT_STATUS(p) (0x0444 + ((p) << 10))
+#define PORT_CONFIG_EXT 0x0004
+#define MAC_ADDR_LOW 0x0014
+#define MAC_ADDR_HIGH 0x0018
+#define SDMA_CONFIG 0x001c
+#define TX_BURST_SIZE_16_64BIT 0x01000000
+#define TX_BURST_SIZE_4_64BIT 0x00800000
+#define BLM_TX_NO_SWAP 0x00000020
+#define BLM_RX_NO_SWAP 0x00000010
+#define RX_BURST_SIZE_16_64BIT 0x00000008
+#define RX_BURST_SIZE_4_64BIT 0x00000004
+#define PORT_SERIAL_CONTROL 0x003c
+#define SET_MII_SPEED_TO_100 0x01000000
+#define SET_GMII_SPEED_TO_1000 0x00800000
+#define SET_FULL_DUPLEX_MODE 0x00200000
+#define MAX_RX_PACKET_9700BYTE 0x000a0000
+#define DISABLE_AUTO_NEG_SPEED_GMII 0x00002000
+#define DO_NOT_FORCE_LINK_FAIL 0x00000400
+#define SERIAL_PORT_CONTROL_RESERVED 0x00000200
+#define DISABLE_AUTO_NEG_FOR_FLOW_CTRL 0x00000008
+#define DISABLE_AUTO_NEG_FOR_DUPLEX 0x00000004
+#define FORCE_LINK_PASS 0x00000002
+#define SERIAL_PORT_ENABLE 0x00000001
+#define PORT_STATUS 0x0044
#define TX_FIFO_EMPTY 0x00000400
#define TX_IN_PROGRESS 0x00000080
#define PORT_SPEED_MASK 0x00000030
#define FLOW_CONTROL_ENABLED 0x00000008
#define FULL_DUPLEX 0x00000004
#define LINK_UP 0x00000002
-#define TXQ_COMMAND(p) (0x0448 + ((p) << 10))
-#define TXQ_FIX_PRIO_CONF(p) (0x044c + ((p) << 10))
-#define TX_BW_RATE(p) (0x0450 + ((p) << 10))
-#define TX_BW_MTU(p) (0x0458 + ((p) << 10))
-#define TX_BW_BURST(p) (0x045c + ((p) << 10))
-#define INT_CAUSE(p) (0x0460 + ((p) << 10))
+#define TXQ_COMMAND 0x0048
+#define TXQ_FIX_PRIO_CONF 0x004c
+#define TX_BW_RATE 0x0050
+#define TX_BW_MTU 0x0058
+#define TX_BW_BURST 0x005c
+#define INT_CAUSE 0x0060
#define INT_TX_END 0x07f80000
+#define INT_TX_END_0 0x00080000
#define INT_RX 0x000003fc
+#define INT_RX_0 0x00000004
#define INT_EXT 0x00000002
-#define INT_CAUSE_EXT(p) (0x0464 + ((p) << 10))
+#define INT_CAUSE_EXT 0x0064
#define INT_EXT_LINK_PHY 0x00110000
#define INT_EXT_TX 0x000000ff
-#define INT_MASK(p) (0x0468 + ((p) << 10))
-#define INT_MASK_EXT(p) (0x046c + ((p) << 10))
-#define TX_FIFO_URGENT_THRESHOLD(p) (0x0474 + ((p) << 10))
-#define TXQ_FIX_PRIO_CONF_MOVED(p) (0x04dc + ((p) << 10))
-#define TX_BW_RATE_MOVED(p) (0x04e0 + ((p) << 10))
-#define TX_BW_MTU_MOVED(p) (0x04e8 + ((p) << 10))
-#define TX_BW_BURST_MOVED(p) (0x04ec + ((p) << 10))
-#define RXQ_CURRENT_DESC_PTR(p, q) (0x060c + ((p) << 10) + ((q) << 4))
-#define RXQ_COMMAND(p) (0x0680 + ((p) << 10))
-#define TXQ_CURRENT_DESC_PTR(p, q) (0x06c0 + ((p) << 10) + ((q) << 2))
-#define TXQ_BW_TOKENS(p, q) (0x0700 + ((p) << 10) + ((q) << 4))
-#define TXQ_BW_CONF(p, q) (0x0704 + ((p) << 10) + ((q) << 4))
-#define TXQ_BW_WRR_CONF(p, q) (0x0708 + ((p) << 10) + ((q) << 4))
+#define INT_MASK 0x0068
+#define INT_MASK_EXT 0x006c
+#define TX_FIFO_URGENT_THRESHOLD 0x0074
+#define TXQ_FIX_PRIO_CONF_MOVED 0x00dc
+#define TX_BW_RATE_MOVED 0x00e0
+#define TX_BW_MTU_MOVED 0x00e8
+#define TX_BW_BURST_MOVED 0x00ec
+#define RXQ_CURRENT_DESC_PTR(q) (0x020c + ((q) << 4))
+#define RXQ_COMMAND 0x0280
+#define TXQ_CURRENT_DESC_PTR(q) (0x02c0 + ((q) << 2))
+#define TXQ_BW_TOKENS(q) (0x0300 + ((q) << 4))
+#define TXQ_BW_CONF(q) (0x0304 + ((q) << 4))
+#define TXQ_BW_WRR_CONF(q) (0x0308 + ((q) << 4))
+
+/*
+ * Misc per-port registers.
+ */
#define MIB_COUNTERS(p) (0x1000 + ((p) << 7))
#define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10))
#define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10))
/*
- * SDMA configuration register.
+ * SDMA configuration register default value.
*/
-#define RX_BURST_SIZE_16_64BIT (4 << 1)
-#define BLM_RX_NO_SWAP (1 << 4)
-#define BLM_TX_NO_SWAP (1 << 5)
-#define TX_BURST_SIZE_16_64BIT (4 << 22)
-
#if defined(__BIG_ENDIAN)
#define PORT_SDMA_CONFIG_DEFAULT_VALUE \
- RX_BURST_SIZE_16_64BIT | \
- TX_BURST_SIZE_16_64BIT
+ (RX_BURST_SIZE_4_64BIT | \
+ TX_BURST_SIZE_4_64BIT)
#elif defined(__LITTLE_ENDIAN)
#define PORT_SDMA_CONFIG_DEFAULT_VALUE \
- RX_BURST_SIZE_16_64BIT | \
- BLM_RX_NO_SWAP | \
- BLM_TX_NO_SWAP | \
- TX_BURST_SIZE_16_64BIT
+ (RX_BURST_SIZE_4_64BIT | \
+ BLM_RX_NO_SWAP | \
+ BLM_TX_NO_SWAP | \
+ TX_BURST_SIZE_4_64BIT)
#else
#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined
#endif
/*
- * Port serial control register.
+ * Misc definitions.
*/
-#define SET_MII_SPEED_TO_100 (1 << 24)
-#define SET_GMII_SPEED_TO_1000 (1 << 23)
-#define SET_FULL_DUPLEX_MODE (1 << 21)
-#define MAX_RX_PACKET_9700BYTE (5 << 17)
-#define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13)
-#define DO_NOT_FORCE_LINK_FAIL (1 << 10)
-#define SERIAL_PORT_CONTROL_RESERVED (1 << 9)
-#define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3)
-#define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2)
-#define FORCE_LINK_PASS (1 << 1)
-#define SERIAL_PORT_ENABLE (1 << 0)
-
-#define DEFAULT_RX_QUEUE_SIZE 128
-#define DEFAULT_TX_QUEUE_SIZE 256
+#define DEFAULT_RX_QUEUE_SIZE 128
+#define DEFAULT_TX_QUEUE_SIZE 256
+#define SKB_DMA_REALIGN ((PAGE_SIZE - NET_SKB_PAD) % SMP_CACHE_BYTES)
/*
#define RX_ENABLE_INTERRUPT 0x20000000
#define RX_FIRST_DESC 0x08000000
#define RX_LAST_DESC 0x04000000
+#define RX_IP_HDR_OK 0x02000000
+#define RX_PKT_IS_IPV4 0x01000000
+#define RX_PKT_IS_ETHERNETV2 0x00800000
+#define RX_PKT_LAYER4_TYPE_MASK 0x00600000
+#define RX_PKT_LAYER4_TYPE_TCP_IPV4 0x00000000
+#define RX_PKT_IS_VLAN_TAGGED 0x00080000
/* TX descriptor command */
#define TX_ENABLE_INTERRUPT 0x00800000
struct mv643xx_eth_shared_private *smi;
/*
- * Protects access to SMI_REG, which is shared between ports.
+ * Provides access to local SMI interface.
*/
- struct mutex phy_lock;
+ struct mii_bus *smi_bus;
/*
* If we have access to the error interrupt pin (which is
*/
unsigned int t_clk;
int extended_rx_coal_limit;
- int tx_bw_control_moved;
+ int tx_bw_control;
};
+#define TX_BW_CONTROL_ABSENT 0
+#define TX_BW_CONTROL_OLD_LAYOUT 1
+#define TX_BW_CONTROL_NEW_LAYOUT 2
+
+static int mv643xx_eth_open(struct net_device *dev);
+static int mv643xx_eth_stop(struct net_device *dev);
+
/* per-port *****************************************************************/
struct mib_counters {
u32 late_collision;
};
+struct lro_counters {
+ u32 lro_aggregated;
+ u32 lro_flushed;
+ u32 lro_no_desc;
+};
+
struct rx_queue {
int index;
dma_addr_t rx_desc_dma;
int rx_desc_area_size;
struct sk_buff **rx_skb;
+
+ struct net_lro_mgr lro_mgr;
+ struct net_lro_desc lro_arr[8];
};
struct tx_queue {
struct mv643xx_eth_private {
struct mv643xx_eth_shared_private *shared;
+ void __iomem *base;
int port_num;
struct net_device *dev;
- int phy_addr;
+ struct phy_device *phy;
+ struct timer_list mib_counters_timer;
+ spinlock_t mib_counters_lock;
struct mib_counters mib_counters;
+
+ struct lro_counters lro_counters;
+
struct work_struct tx_timeout_task;
- struct mii_if_info mii;
struct napi_struct napi;
+ u32 int_mask;
+ u8 oom;
u8 work_link;
u8 work_tx;
u8 work_tx_end;
u8 work_rx;
u8 work_rx_refill;
- u8 work_rx_oom;
+
+ int skb_size;
+ struct sk_buff_head rx_recycle;
/*
* RX state.
*/
- int default_rx_ring_size;
+ int rx_ring_size;
unsigned long rx_desc_sram_addr;
int rx_desc_sram_size;
int rxq_count;
/*
* TX state.
*/
- int default_tx_ring_size;
+ int tx_ring_size;
unsigned long tx_desc_sram_addr;
int tx_desc_sram_size;
int txq_count;
return readl(mp->shared->base + offset);
}
+static inline u32 rdlp(struct mv643xx_eth_private *mp, int offset)
+{
+ return readl(mp->base + offset);
+}
+
static inline void wrl(struct mv643xx_eth_private *mp, int offset, u32 data)
{
writel(data, mp->shared->base + offset);
}
+static inline void wrlp(struct mv643xx_eth_private *mp, int offset, u32 data)
+{
+ writel(data, mp->base + offset);
+}
+
/* rxq/txq helper functions *************************************************/
static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq)
static void rxq_enable(struct rx_queue *rxq)
{
struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
- wrl(mp, RXQ_COMMAND(mp->port_num), 1 << rxq->index);
+ wrlp(mp, RXQ_COMMAND, 1 << rxq->index);
}
static void rxq_disable(struct rx_queue *rxq)
struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
u8 mask = 1 << rxq->index;
- wrl(mp, RXQ_COMMAND(mp->port_num), mask << 8);
- while (rdl(mp, RXQ_COMMAND(mp->port_num)) & mask)
+ wrlp(mp, RXQ_COMMAND, mask << 8);
+ while (rdlp(mp, RXQ_COMMAND) & mask)
udelay(10);
}
static void txq_reset_hw_ptr(struct tx_queue *txq)
{
struct mv643xx_eth_private *mp = txq_to_mp(txq);
- int off = TXQ_CURRENT_DESC_PTR(mp->port_num, txq->index);
u32 addr;
addr = (u32)txq->tx_desc_dma;
addr += txq->tx_curr_desc * sizeof(struct tx_desc);
- wrl(mp, off, addr);
+ wrlp(mp, TXQ_CURRENT_DESC_PTR(txq->index), addr);
}
static void txq_enable(struct tx_queue *txq)
{
struct mv643xx_eth_private *mp = txq_to_mp(txq);
- wrl(mp, TXQ_COMMAND(mp->port_num), 1 << txq->index);
+ wrlp(mp, TXQ_COMMAND, 1 << txq->index);
}
static void txq_disable(struct tx_queue *txq)
struct mv643xx_eth_private *mp = txq_to_mp(txq);
u8 mask = 1 << txq->index;
- wrl(mp, TXQ_COMMAND(mp->port_num), mask << 8);
- while (rdl(mp, TXQ_COMMAND(mp->port_num)) & mask)
+ wrlp(mp, TXQ_COMMAND, mask << 8);
+ while (rdlp(mp, TXQ_COMMAND) & mask)
udelay(10);
}
/* rx napi ******************************************************************/
+static int
+mv643xx_get_skb_header(struct sk_buff *skb, void **iphdr, void **tcph,
+ u64 *hdr_flags, void *priv)
+{
+ unsigned long cmd_sts = (unsigned long)priv;
+
+ /*
+ * Make sure that this packet is Ethernet II, is not VLAN
+ * tagged, is IPv4, has a valid IP header, and is TCP.
+ */
+ if ((cmd_sts & (RX_IP_HDR_OK | RX_PKT_IS_IPV4 |
+ RX_PKT_IS_ETHERNETV2 | RX_PKT_LAYER4_TYPE_MASK |
+ RX_PKT_IS_VLAN_TAGGED)) !=
+ (RX_IP_HDR_OK | RX_PKT_IS_IPV4 |
+ RX_PKT_IS_ETHERNETV2 | RX_PKT_LAYER4_TYPE_TCP_IPV4))
+ return -1;
+
+ skb_reset_network_header(skb);
+ skb_set_transport_header(skb, ip_hdrlen(skb));
+ *iphdr = ip_hdr(skb);
+ *tcph = tcp_hdr(skb);
+ *hdr_flags = LRO_IPV4 | LRO_TCP;
+
+ return 0;
+}
+
static int rxq_process(struct rx_queue *rxq, int budget)
{
struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
struct net_device_stats *stats = &mp->dev->stats;
+ int lro_flush_needed;
int rx;
+ lro_flush_needed = 0;
rx = 0;
while (rx < budget && rxq->rx_desc_count) {
struct rx_desc *rx_desc;
if (rxq->rx_curr_desc == rxq->rx_ring_size)
rxq->rx_curr_desc = 0;
- dma_unmap_single(NULL, rx_desc->buf_ptr,
+ dma_unmap_single(mp->dev->dev.parent, rx_desc->buf_ptr,
rx_desc->buf_size, DMA_FROM_DEVICE);
rxq->rx_desc_count--;
rx++;
* on, or the error summary bit is set, the packet needs
* to be dropped.
*/
- if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
- (RX_FIRST_DESC | RX_LAST_DESC))
- || (cmd_sts & ERROR_SUMMARY)) {
- stats->rx_dropped++;
-
- if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
- (RX_FIRST_DESC | RX_LAST_DESC)) {
- if (net_ratelimit())
- dev_printk(KERN_ERR, &mp->dev->dev,
- "received packet spanning "
- "multiple descriptors\n");
- }
+ if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC | ERROR_SUMMARY))
+ != (RX_FIRST_DESC | RX_LAST_DESC))
+ goto err;
- if (cmd_sts & ERROR_SUMMARY)
- stats->rx_errors++;
+ /*
+ * The -4 is for the CRC in the trailer of the
+ * received packet
+ */
+ skb_put(skb, byte_cnt - 2 - 4);
- dev_kfree_skb(skb);
- } else {
- /*
- * The -4 is for the CRC in the trailer of the
- * received packet
- */
- skb_put(skb, byte_cnt - 2 - 4);
-
- if (cmd_sts & LAYER_4_CHECKSUM_OK) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->csum = htons(
- (cmd_sts & 0x0007fff8) >> 3);
- }
- skb->protocol = eth_type_trans(skb, mp->dev);
+ if (cmd_sts & LAYER_4_CHECKSUM_OK)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->protocol = eth_type_trans(skb, mp->dev);
+
+ if (skb->dev->features & NETIF_F_LRO &&
+ skb->ip_summed == CHECKSUM_UNNECESSARY) {
+ lro_receive_skb(&rxq->lro_mgr, skb, (void *)cmd_sts);
+ lro_flush_needed = 1;
+ } else
netif_receive_skb(skb);
+
+ continue;
+
+err:
+ stats->rx_dropped++;
+
+ if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
+ (RX_FIRST_DESC | RX_LAST_DESC)) {
+ if (net_ratelimit())
+ dev_printk(KERN_ERR, &mp->dev->dev,
+ "received packet spanning "
+ "multiple descriptors\n");
}
- mp->dev->last_rx = jiffies;
+ if (cmd_sts & ERROR_SUMMARY)
+ stats->rx_errors++;
+
+ dev_kfree_skb(skb);
}
+ if (lro_flush_needed)
+ lro_flush_all(&rxq->lro_mgr);
+
if (rx < budget)
mp->work_rx &= ~(1 << rxq->index);
static int rxq_refill(struct rx_queue *rxq, int budget)
{
struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
- int skb_size;
int refilled;
- /*
- * Reserve 2+14 bytes for an ethernet header (the hardware
- * automatically prepends 2 bytes of dummy data to each
- * received packet), 16 bytes for up to four VLAN tags, and
- * 4 bytes for the trailing FCS -- 36 bytes total.
- */
- skb_size = rxq_to_mp(rxq)->dev->mtu + 36;
-
- /*
- * Make sure that the skb size is a multiple of 8 bytes, as
- * the lower three bits of the receive descriptor's buffer
- * size field are ignored by the hardware.
- */
- skb_size = (skb_size + 7) & ~7;
-
refilled = 0;
while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) {
struct sk_buff *skb;
- int unaligned;
int rx;
+ struct rx_desc *rx_desc;
+ int size;
+
+ skb = __skb_dequeue(&mp->rx_recycle);
+ if (skb == NULL)
+ skb = dev_alloc_skb(mp->skb_size);
- skb = dev_alloc_skb(skb_size + dma_get_cache_alignment() - 1);
if (skb == NULL) {
- mp->work_rx_oom |= 1 << rxq->index;
+ mp->oom = 1;
goto oom;
}
- unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1);
- if (unaligned)
- skb_reserve(skb, dma_get_cache_alignment() - unaligned);
+ if (SKB_DMA_REALIGN)
+ skb_reserve(skb, SKB_DMA_REALIGN);
refilled++;
rxq->rx_desc_count++;
if (rxq->rx_used_desc == rxq->rx_ring_size)
rxq->rx_used_desc = 0;
- rxq->rx_desc_area[rx].buf_ptr = dma_map_single(NULL, skb->data,
- skb_size, DMA_FROM_DEVICE);
- rxq->rx_desc_area[rx].buf_size = skb_size;
+ rx_desc = rxq->rx_desc_area + rx;
+
+ size = skb->end - skb->data;
+ rx_desc->buf_ptr = dma_map_single(mp->dev->dev.parent,
+ skb->data, size,
+ DMA_FROM_DEVICE);
+ rx_desc->buf_size = size;
rxq->rx_skb[rx] = skb;
wmb();
- rxq->rx_desc_area[rx].cmd_sts = BUFFER_OWNED_BY_DMA |
- RX_ENABLE_INTERRUPT;
+ rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT;
wmb();
/*
return 0;
}
-static int txq_alloc_desc_index(struct tx_queue *txq)
-{
- int tx_desc_curr;
-
- BUG_ON(txq->tx_desc_count >= txq->tx_ring_size);
-
- tx_desc_curr = txq->tx_curr_desc++;
- if (txq->tx_curr_desc == txq->tx_ring_size)
- txq->tx_curr_desc = 0;
-
- BUG_ON(txq->tx_curr_desc == txq->tx_used_desc);
-
- return tx_desc_curr;
-}
-
static void txq_submit_frag_skb(struct tx_queue *txq, struct sk_buff *skb)
{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
int nr_frags = skb_shinfo(skb)->nr_frags;
int frag;
struct tx_desc *desc;
this_frag = &skb_shinfo(skb)->frags[frag];
- tx_index = txq_alloc_desc_index(txq);
+ tx_index = txq->tx_curr_desc++;
+ if (txq->tx_curr_desc == txq->tx_ring_size)
+ txq->tx_curr_desc = 0;
desc = &txq->tx_desc_area[tx_index];
/*
desc->l4i_chk = 0;
desc->byte_cnt = this_frag->size;
- desc->buf_ptr = dma_map_page(NULL, this_frag->page,
- this_frag->page_offset,
- this_frag->size,
- DMA_TO_DEVICE);
+ desc->buf_ptr = dma_map_page(mp->dev->dev.parent,
+ this_frag->page,
+ this_frag->page_offset,
+ this_frag->size, DMA_TO_DEVICE);
}
}
return (__force __be16)sum;
}
-static void txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb)
+static int txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb)
{
struct mv643xx_eth_private *mp = txq_to_mp(txq);
int nr_frags = skb_shinfo(skb)->nr_frags;
int tx_index;
struct tx_desc *desc;
u32 cmd_sts;
+ u16 l4i_chk;
int length;
cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA;
-
- tx_index = txq_alloc_desc_index(txq);
- desc = &txq->tx_desc_area[tx_index];
-
- if (nr_frags) {
- txq_submit_frag_skb(txq, skb);
- length = skb_headlen(skb);
- } else {
- cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT;
- length = skb->len;
- }
-
- desc->byte_cnt = length;
- desc->buf_ptr = dma_map_single(NULL, skb->data, length, DMA_TO_DEVICE);
+ l4i_chk = 0;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- int mac_hdr_len;
+ int tag_bytes;
BUG_ON(skb->protocol != htons(ETH_P_IP) &&
skb->protocol != htons(ETH_P_8021Q));
- cmd_sts |= GEN_TCP_UDP_CHECKSUM |
- GEN_IP_V4_CHECKSUM |
- ip_hdr(skb)->ihl << TX_IHL_SHIFT;
+ tag_bytes = (void *)ip_hdr(skb) - (void *)skb->data - ETH_HLEN;
+ if (unlikely(tag_bytes & ~12)) {
+ if (skb_checksum_help(skb) == 0)
+ goto no_csum;
+ kfree_skb(skb);
+ return 1;
+ }
- mac_hdr_len = (void *)ip_hdr(skb) - (void *)skb->data;
- switch (mac_hdr_len - ETH_HLEN) {
- case 0:
- break;
- case 4:
- cmd_sts |= MAC_HDR_EXTRA_4_BYTES;
- break;
- case 8:
- cmd_sts |= MAC_HDR_EXTRA_8_BYTES;
- break;
- case 12:
+ if (tag_bytes & 4)
cmd_sts |= MAC_HDR_EXTRA_4_BYTES;
+ if (tag_bytes & 8)
cmd_sts |= MAC_HDR_EXTRA_8_BYTES;
- break;
- default:
- if (net_ratelimit())
- dev_printk(KERN_ERR, &txq_to_mp(txq)->dev->dev,
- "mac header length is %d?!\n", mac_hdr_len);
- break;
- }
+
+ cmd_sts |= GEN_TCP_UDP_CHECKSUM |
+ GEN_IP_V4_CHECKSUM |
+ ip_hdr(skb)->ihl << TX_IHL_SHIFT;
switch (ip_hdr(skb)->protocol) {
case IPPROTO_UDP:
cmd_sts |= UDP_FRAME;
- desc->l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check));
+ l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check));
break;
case IPPROTO_TCP:
- desc->l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check));
+ l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check));
break;
default:
BUG();
}
} else {
+no_csum:
/* Errata BTS #50, IHL must be 5 if no HW checksum */
cmd_sts |= 5 << TX_IHL_SHIFT;
- desc->l4i_chk = 0;
}
+ tx_index = txq->tx_curr_desc++;
+ if (txq->tx_curr_desc == txq->tx_ring_size)
+ txq->tx_curr_desc = 0;
+ desc = &txq->tx_desc_area[tx_index];
+
+ if (nr_frags) {
+ txq_submit_frag_skb(txq, skb);
+ length = skb_headlen(skb);
+ } else {
+ cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT;
+ length = skb->len;
+ }
+
+ desc->l4i_chk = l4i_chk;
+ desc->byte_cnt = length;
+ desc->buf_ptr = dma_map_single(mp->dev->dev.parent, skb->data,
+ length, DMA_TO_DEVICE);
+
__skb_queue_tail(&txq->tx_skb, skb);
/* ensure all other descriptors are written before first cmd_sts */
txq_enable(txq);
txq->tx_desc_count += nr_frags + 1;
+
+ return 0;
}
-static int mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
int queue;
struct tx_queue *txq;
struct netdev_queue *nq;
- int entries_left;
queue = skb_get_queue_mapping(skb);
txq = mp->txq + queue;
return NETDEV_TX_OK;
}
- txq_submit_skb(txq, skb);
- txq->tx_bytes += skb->len;
- txq->tx_packets++;
- dev->trans_start = jiffies;
+ if (!txq_submit_skb(txq, skb)) {
+ int entries_left;
+
+ txq->tx_bytes += skb->len;
+ txq->tx_packets++;
+ dev->trans_start = jiffies;
- entries_left = txq->tx_ring_size - txq->tx_desc_count;
- if (entries_left < MAX_SKB_FRAGS + 1)
- netif_tx_stop_queue(nq);
+ entries_left = txq->tx_ring_size - txq->tx_desc_count;
+ if (entries_left < MAX_SKB_FRAGS + 1)
+ netif_tx_stop_queue(nq);
+ }
return NETDEV_TX_OK;
}
__netif_tx_lock(nq, smp_processor_id());
- if (rdl(mp, TXQ_COMMAND(mp->port_num)) & (1 << txq->index))
+ if (rdlp(mp, TXQ_COMMAND) & (1 << txq->index))
goto out;
- hw_desc_ptr = rdl(mp, TXQ_CURRENT_DESC_PTR(mp->port_num, txq->index));
+ hw_desc_ptr = rdlp(mp, TXQ_CURRENT_DESC_PTR(txq->index));
expected_ptr = (u32)txq->tx_desc_dma +
txq->tx_curr_desc * sizeof(struct tx_desc);
}
if (cmd_sts & TX_FIRST_DESC) {
- dma_unmap_single(NULL, desc->buf_ptr,
+ dma_unmap_single(mp->dev->dev.parent, desc->buf_ptr,
desc->byte_cnt, DMA_TO_DEVICE);
} else {
- dma_unmap_page(NULL, desc->buf_ptr,
+ dma_unmap_page(mp->dev->dev.parent, desc->buf_ptr,
desc->byte_cnt, DMA_TO_DEVICE);
}
- if (skb)
- dev_kfree_skb(skb);
+ if (skb != NULL) {
+ if (skb_queue_len(&mp->rx_recycle) <
+ mp->rx_ring_size &&
+ skb_recycle_check(skb, mp->skb_size))
+ __skb_queue_head(&mp->rx_recycle, skb);
+ else
+ dev_kfree_skb(skb);
+ }
}
__netif_tx_unlock(nq);
if (bucket_size > 65535)
bucket_size = 65535;
- if (mp->shared->tx_bw_control_moved) {
- wrl(mp, TX_BW_RATE_MOVED(mp->port_num), token_rate);
- wrl(mp, TX_BW_MTU_MOVED(mp->port_num), mtu);
- wrl(mp, TX_BW_BURST_MOVED(mp->port_num), bucket_size);
- } else {
- wrl(mp, TX_BW_RATE(mp->port_num), token_rate);
- wrl(mp, TX_BW_MTU(mp->port_num), mtu);
- wrl(mp, TX_BW_BURST(mp->port_num), bucket_size);
+ switch (mp->shared->tx_bw_control) {
+ case TX_BW_CONTROL_OLD_LAYOUT:
+ wrlp(mp, TX_BW_RATE, token_rate);
+ wrlp(mp, TX_BW_MTU, mtu);
+ wrlp(mp, TX_BW_BURST, bucket_size);
+ break;
+ case TX_BW_CONTROL_NEW_LAYOUT:
+ wrlp(mp, TX_BW_RATE_MOVED, token_rate);
+ wrlp(mp, TX_BW_MTU_MOVED, mtu);
+ wrlp(mp, TX_BW_BURST_MOVED, bucket_size);
+ break;
}
}
if (bucket_size > 65535)
bucket_size = 65535;
- wrl(mp, TXQ_BW_TOKENS(mp->port_num, txq->index), token_rate << 14);
- wrl(mp, TXQ_BW_CONF(mp->port_num, txq->index),
- (bucket_size << 10) | token_rate);
+ wrlp(mp, TXQ_BW_TOKENS(txq->index), token_rate << 14);
+ wrlp(mp, TXQ_BW_CONF(txq->index), (bucket_size << 10) | token_rate);
}
static void txq_set_fixed_prio_mode(struct tx_queue *txq)
/*
* Turn on fixed priority mode.
*/
- if (mp->shared->tx_bw_control_moved)
- off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num);
- else
- off = TXQ_FIX_PRIO_CONF(mp->port_num);
-
- val = rdl(mp, off);
- val |= 1 << txq->index;
- wrl(mp, off, val);
-}
-
-static void txq_set_wrr(struct tx_queue *txq, int weight)
-{
- struct mv643xx_eth_private *mp = txq_to_mp(txq);
- int off;
- u32 val;
-
- /*
- * Turn off fixed priority mode.
- */
- if (mp->shared->tx_bw_control_moved)
- off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num);
- else
- off = TXQ_FIX_PRIO_CONF(mp->port_num);
-
- val = rdl(mp, off);
- val &= ~(1 << txq->index);
- wrl(mp, off, val);
-
- /*
- * Configure WRR weight for this queue.
- */
- off = TXQ_BW_WRR_CONF(mp->port_num, txq->index);
+ off = 0;
+ switch (mp->shared->tx_bw_control) {
+ case TX_BW_CONTROL_OLD_LAYOUT:
+ off = TXQ_FIX_PRIO_CONF;
+ break;
+ case TX_BW_CONTROL_NEW_LAYOUT:
+ off = TXQ_FIX_PRIO_CONF_MOVED;
+ break;
+ }
- val = rdl(mp, off);
- val = (val & ~0xff) | (weight & 0xff);
- wrl(mp, off, val);
+ if (off) {
+ val = rdlp(mp, off);
+ val |= 1 << txq->index;
+ wrlp(mp, off, val);
+ }
}
return 0;
}
- if (!wait_event_timeout(msp->smi_busy_wait, smi_is_done(msp),
- msecs_to_jiffies(100)))
- return -ETIMEDOUT;
+ if (!smi_is_done(msp)) {
+ wait_event_timeout(msp->smi_busy_wait, smi_is_done(msp),
+ msecs_to_jiffies(100));
+ if (!smi_is_done(msp))
+ return -ETIMEDOUT;
+ }
return 0;
}
-static int smi_reg_read(struct mv643xx_eth_private *mp,
- unsigned int addr, unsigned int reg)
+static int smi_bus_read(struct mii_bus *bus, int addr, int reg)
{
- struct mv643xx_eth_shared_private *msp = mp->shared->smi;
+ struct mv643xx_eth_shared_private *msp = bus->priv;
void __iomem *smi_reg = msp->base + SMI_REG;
int ret;
- mutex_lock(&msp->phy_lock);
-
if (smi_wait_ready(msp)) {
- printk("%s: SMI bus busy timeout\n", mp->dev->name);
- ret = -ETIMEDOUT;
- goto out;
+ printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n");
+ return -ETIMEDOUT;
}
writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg);
if (smi_wait_ready(msp)) {
- printk("%s: SMI bus busy timeout\n", mp->dev->name);
- ret = -ETIMEDOUT;
- goto out;
+ printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n");
+ return -ETIMEDOUT;
}
ret = readl(smi_reg);
if (!(ret & SMI_READ_VALID)) {
- printk("%s: SMI bus read not valid\n", mp->dev->name);
- ret = -ENODEV;
- goto out;
+ printk(KERN_WARNING "mv643xx_eth: SMI bus read not valid\n");
+ return -ENODEV;
}
- ret &= 0xffff;
-
-out:
- mutex_unlock(&msp->phy_lock);
-
- return ret;
+ return ret & 0xffff;
}
-static int smi_reg_write(struct mv643xx_eth_private *mp, unsigned int addr,
- unsigned int reg, unsigned int value)
+static int smi_bus_write(struct mii_bus *bus, int addr, int reg, u16 val)
{
- struct mv643xx_eth_shared_private *msp = mp->shared->smi;
+ struct mv643xx_eth_shared_private *msp = bus->priv;
void __iomem *smi_reg = msp->base + SMI_REG;
- mutex_lock(&msp->phy_lock);
-
if (smi_wait_ready(msp)) {
- printk("%s: SMI bus busy timeout\n", mp->dev->name);
- mutex_unlock(&msp->phy_lock);
+ printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n");
return -ETIMEDOUT;
}
writel(SMI_OPCODE_WRITE | (reg << 21) |
- (addr << 16) | (value & 0xffff), smi_reg);
+ (addr << 16) | (val & 0xffff), smi_reg);
- mutex_unlock(&msp->phy_lock);
+ if (smi_wait_ready(msp)) {
+ printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n");
+ return -ETIMEDOUT;
+ }
return 0;
}
return stats;
}
+static void mv643xx_eth_grab_lro_stats(struct mv643xx_eth_private *mp)
+{
+ u32 lro_aggregated = 0;
+ u32 lro_flushed = 0;
+ u32 lro_no_desc = 0;
+ int i;
+
+ for (i = 0; i < mp->rxq_count; i++) {
+ struct rx_queue *rxq = mp->rxq + i;
+
+ lro_aggregated += rxq->lro_mgr.stats.aggregated;
+ lro_flushed += rxq->lro_mgr.stats.flushed;
+ lro_no_desc += rxq->lro_mgr.stats.no_desc;
+ }
+
+ mp->lro_counters.lro_aggregated = lro_aggregated;
+ mp->lro_counters.lro_flushed = lro_flushed;
+ mp->lro_counters.lro_no_desc = lro_no_desc;
+}
+
static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset)
{
return rdl(mp, MIB_COUNTERS(mp->port_num) + offset);
{
struct mib_counters *p = &mp->mib_counters;
+ spin_lock_bh(&mp->mib_counters_lock);
p->good_octets_received += mib_read(mp, 0x00);
- p->good_octets_received += (u64)mib_read(mp, 0x04) << 32;
p->bad_octets_received += mib_read(mp, 0x08);
p->internal_mac_transmit_err += mib_read(mp, 0x0c);
p->good_frames_received += mib_read(mp, 0x10);
p->frames_512_to_1023_octets += mib_read(mp, 0x30);
p->frames_1024_to_max_octets += mib_read(mp, 0x34);
p->good_octets_sent += mib_read(mp, 0x38);
- p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32;
p->good_frames_sent += mib_read(mp, 0x40);
p->excessive_collision += mib_read(mp, 0x44);
p->multicast_frames_sent += mib_read(mp, 0x48);
p->bad_crc_event += mib_read(mp, 0x74);
p->collision += mib_read(mp, 0x78);
p->late_collision += mib_read(mp, 0x7c);
+ spin_unlock_bh(&mp->mib_counters_lock);
+
+ mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ);
+}
+
+static void mib_counters_timer_wrapper(unsigned long _mp)
+{
+ struct mv643xx_eth_private *mp = (void *)_mp;
+
+ mib_counters_update(mp);
+}
+
+
+/* interrupt coalescing *****************************************************/
+/*
+ * Hardware coalescing parameters are set in units of 64 t_clk
+ * cycles. I.e.:
+ *
+ * coal_delay_in_usec = 64000000 * register_value / t_clk_rate
+ *
+ * register_value = coal_delay_in_usec * t_clk_rate / 64000000
+ *
+ * In the ->set*() methods, we round the computed register value
+ * to the nearest integer.
+ */
+static unsigned int get_rx_coal(struct mv643xx_eth_private *mp)
+{
+ u32 val = rdlp(mp, SDMA_CONFIG);
+ u64 temp;
+
+ if (mp->shared->extended_rx_coal_limit)
+ temp = ((val & 0x02000000) >> 10) | ((val & 0x003fff80) >> 7);
+ else
+ temp = (val & 0x003fff00) >> 8;
+
+ temp *= 64000000;
+ do_div(temp, mp->shared->t_clk);
+
+ return (unsigned int)temp;
+}
+
+static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int usec)
+{
+ u64 temp;
+ u32 val;
+
+ temp = (u64)usec * mp->shared->t_clk;
+ temp += 31999999;
+ do_div(temp, 64000000);
+
+ val = rdlp(mp, SDMA_CONFIG);
+ if (mp->shared->extended_rx_coal_limit) {
+ if (temp > 0xffff)
+ temp = 0xffff;
+ val &= ~0x023fff80;
+ val |= (temp & 0x8000) << 10;
+ val |= (temp & 0x7fff) << 7;
+ } else {
+ if (temp > 0x3fff)
+ temp = 0x3fff;
+ val &= ~0x003fff00;
+ val |= (temp & 0x3fff) << 8;
+ }
+ wrlp(mp, SDMA_CONFIG, val);
+}
+
+static unsigned int get_tx_coal(struct mv643xx_eth_private *mp)
+{
+ u64 temp;
+
+ temp = (rdlp(mp, TX_FIFO_URGENT_THRESHOLD) & 0x3fff0) >> 4;
+ temp *= 64000000;
+ do_div(temp, mp->shared->t_clk);
+
+ return (unsigned int)temp;
+}
+
+static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int usec)
+{
+ u64 temp;
+
+ temp = (u64)usec * mp->shared->t_clk;
+ temp += 31999999;
+ do_div(temp, 64000000);
+
+ if (temp > 0x3fff)
+ temp = 0x3fff;
+
+ wrlp(mp, TX_FIFO_URGENT_THRESHOLD, temp << 4);
}
{ #m, FIELD_SIZEOF(struct mib_counters, m), \
-1, offsetof(struct mv643xx_eth_private, mib_counters.m) }
+#define LROSTAT(m) \
+ { #m, FIELD_SIZEOF(struct lro_counters, m), \
+ -1, offsetof(struct mv643xx_eth_private, lro_counters.m) }
+
static const struct mv643xx_eth_stats mv643xx_eth_stats[] = {
SSTAT(rx_packets),
SSTAT(tx_packets),
MIBSTAT(bad_crc_event),
MIBSTAT(collision),
MIBSTAT(late_collision),
+ LROSTAT(lro_aggregated),
+ LROSTAT(lro_flushed),
+ LROSTAT(lro_no_desc),
};
-static int mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+static int
+mv643xx_eth_get_settings_phy(struct mv643xx_eth_private *mp,
+ struct ethtool_cmd *cmd)
{
- struct mv643xx_eth_private *mp = netdev_priv(dev);
int err;
- err = mii_ethtool_gset(&mp->mii, cmd);
+ err = phy_read_status(mp->phy);
+ if (err == 0)
+ err = phy_ethtool_gset(mp->phy, cmd);
/*
* The MAC does not support 1000baseT_Half.
return err;
}
-static int mv643xx_eth_get_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd)
+static int
+mv643xx_eth_get_settings_phyless(struct mv643xx_eth_private *mp,
+ struct ethtool_cmd *cmd)
{
- struct mv643xx_eth_private *mp = netdev_priv(dev);
u32 port_status;
- port_status = rdl(mp, PORT_STATUS(mp->port_num));
+ port_status = rdlp(mp, PORT_STATUS);
cmd->supported = SUPPORTED_MII;
cmd->advertising = ADVERTISED_MII;
return 0;
}
-static int mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+static int
+mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
+ if (mp->phy != NULL)
+ return mv643xx_eth_get_settings_phy(mp, cmd);
+ else
+ return mv643xx_eth_get_settings_phyless(mp, cmd);
+}
+
+static int
+mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ if (mp->phy == NULL)
+ return -EINVAL;
+
/*
* The MAC does not support 1000baseT_Half.
*/
cmd->advertising &= ~ADVERTISED_1000baseT_Half;
- return mii_ethtool_sset(&mp->mii, cmd);
-}
-
-static int mv643xx_eth_set_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- return -EINVAL;
+ return phy_ethtool_sset(mp->phy, cmd);
}
static void mv643xx_eth_get_drvinfo(struct net_device *dev,
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
- return mii_nway_restart(&mp->mii);
+ if (mp->phy == NULL)
+ return -EINVAL;
+
+ return genphy_restart_aneg(mp->phy);
}
-static int mv643xx_eth_nway_reset_phyless(struct net_device *dev)
+static u32 mv643xx_eth_get_link(struct net_device *dev)
{
- return -EINVAL;
+ return !!netif_carrier_ok(dev);
}
-static u32 mv643xx_eth_get_link(struct net_device *dev)
+static int
+mv643xx_eth_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
- return mii_link_ok(&mp->mii);
+ ec->rx_coalesce_usecs = get_rx_coal(mp);
+ ec->tx_coalesce_usecs = get_tx_coal(mp);
+
+ return 0;
}
-static u32 mv643xx_eth_get_link_phyless(struct net_device *dev)
+static int
+mv643xx_eth_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
{
- return 1;
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ set_rx_coal(mp, ec->rx_coalesce_usecs);
+ set_tx_coal(mp, ec->tx_coalesce_usecs);
+
+ return 0;
+}
+
+static void
+mv643xx_eth_get_ringparam(struct net_device *dev, struct ethtool_ringparam *er)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ er->rx_max_pending = 4096;
+ er->tx_max_pending = 4096;
+ er->rx_mini_max_pending = 0;
+ er->rx_jumbo_max_pending = 0;
+
+ er->rx_pending = mp->rx_ring_size;
+ er->tx_pending = mp->tx_ring_size;
+ er->rx_mini_pending = 0;
+ er->rx_jumbo_pending = 0;
+}
+
+static int
+mv643xx_eth_set_ringparam(struct net_device *dev, struct ethtool_ringparam *er)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ if (er->rx_mini_pending || er->rx_jumbo_pending)
+ return -EINVAL;
+
+ mp->rx_ring_size = er->rx_pending < 4096 ? er->rx_pending : 4096;
+ mp->tx_ring_size = er->tx_pending < 4096 ? er->tx_pending : 4096;
+
+ if (netif_running(dev)) {
+ mv643xx_eth_stop(dev);
+ if (mv643xx_eth_open(dev)) {
+ dev_printk(KERN_ERR, &dev->dev,
+ "fatal error on re-opening device after "
+ "ring param change\n");
+ return -ENOMEM;
+ }
+ }
+
+ return 0;
+}
+
+static u32
+mv643xx_eth_get_rx_csum(struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ return !!(rdlp(mp, PORT_CONFIG) & 0x02000000);
+}
+
+static int
+mv643xx_eth_set_rx_csum(struct net_device *dev, u32 rx_csum)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ wrlp(mp, PORT_CONFIG, rx_csum ? 0x02000000 : 0x00000000);
+
+ return 0;
}
static void mv643xx_eth_get_strings(struct net_device *dev,
mv643xx_eth_get_stats(dev);
mib_counters_update(mp);
+ mv643xx_eth_grab_lro_stats(mp);
for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) {
const struct mv643xx_eth_stats *stat;
.get_drvinfo = mv643xx_eth_get_drvinfo,
.nway_reset = mv643xx_eth_nway_reset,
.get_link = mv643xx_eth_get_link,
+ .get_coalesce = mv643xx_eth_get_coalesce,
+ .set_coalesce = mv643xx_eth_set_coalesce,
+ .get_ringparam = mv643xx_eth_get_ringparam,
+ .set_ringparam = mv643xx_eth_set_ringparam,
+ .get_rx_csum = mv643xx_eth_get_rx_csum,
+ .set_rx_csum = mv643xx_eth_set_rx_csum,
+ .set_tx_csum = ethtool_op_set_tx_csum,
.set_sg = ethtool_op_set_sg,
.get_strings = mv643xx_eth_get_strings,
.get_ethtool_stats = mv643xx_eth_get_ethtool_stats,
- .get_sset_count = mv643xx_eth_get_sset_count,
-};
-
-static const struct ethtool_ops mv643xx_eth_ethtool_ops_phyless = {
- .get_settings = mv643xx_eth_get_settings_phyless,
- .set_settings = mv643xx_eth_set_settings_phyless,
- .get_drvinfo = mv643xx_eth_get_drvinfo,
- .nway_reset = mv643xx_eth_nway_reset_phyless,
- .get_link = mv643xx_eth_get_link_phyless,
- .set_sg = ethtool_op_set_sg,
- .get_strings = mv643xx_eth_get_strings,
- .get_ethtool_stats = mv643xx_eth_get_ethtool_stats,
+ .get_flags = ethtool_op_get_flags,
+ .set_flags = ethtool_op_set_flags,
.get_sset_count = mv643xx_eth_get_sset_count,
};
/* address handling *********************************************************/
static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr)
{
- unsigned int mac_h;
- unsigned int mac_l;
-
- mac_h = rdl(mp, MAC_ADDR_HIGH(mp->port_num));
- mac_l = rdl(mp, MAC_ADDR_LOW(mp->port_num));
+ unsigned int mac_h = rdlp(mp, MAC_ADDR_HIGH);
+ unsigned int mac_l = rdlp(mp, MAC_ADDR_LOW);
addr[0] = (mac_h >> 24) & 0xff;
addr[1] = (mac_h >> 16) & 0xff;
addr[5] = mac_l & 0xff;
}
-static void init_mac_tables(struct mv643xx_eth_private *mp)
+static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr)
{
- int i;
-
- for (i = 0; i < 0x100; i += 4) {
- wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0);
- wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0);
- }
-
- for (i = 0; i < 0x10; i += 4)
- wrl(mp, UNICAST_TABLE(mp->port_num) + i, 0);
+ wrlp(mp, MAC_ADDR_HIGH,
+ (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]);
+ wrlp(mp, MAC_ADDR_LOW, (addr[4] << 8) | addr[5]);
}
-static void set_filter_table_entry(struct mv643xx_eth_private *mp,
- int table, unsigned char entry)
+static u32 uc_addr_filter_mask(struct net_device *dev)
{
- unsigned int table_reg;
+ struct netdev_hw_addr *ha;
+ u32 nibbles;
- /* Set "accepts frame bit" at specified table entry */
- table_reg = rdl(mp, table + (entry & 0xfc));
- table_reg |= 0x01 << (8 * (entry & 3));
- wrl(mp, table + (entry & 0xfc), table_reg);
-}
-
-static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr)
-{
- unsigned int mac_h;
- unsigned int mac_l;
- int table;
+ if (dev->flags & IFF_PROMISC)
+ return 0;
- mac_l = (addr[4] << 8) | addr[5];
- mac_h = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3];
+ nibbles = 1 << (dev->dev_addr[5] & 0x0f);
+ list_for_each_entry(ha, &dev->uc.list, list) {
+ if (memcmp(dev->dev_addr, ha->addr, 5))
+ return 0;
+ if ((dev->dev_addr[5] ^ ha->addr[5]) & 0xf0)
+ return 0;
- wrl(mp, MAC_ADDR_LOW(mp->port_num), mac_l);
- wrl(mp, MAC_ADDR_HIGH(mp->port_num), mac_h);
+ nibbles |= 1 << (ha->addr[5] & 0x0f);
+ }
- table = UNICAST_TABLE(mp->port_num);
- set_filter_table_entry(mp, table, addr[5] & 0x0f);
+ return nibbles;
}
-static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr)
+static void mv643xx_eth_program_unicast_filter(struct net_device *dev)
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
+ u32 port_config;
+ u32 nibbles;
+ int i;
- /* +2 is for the offset of the HW addr type */
- memcpy(dev->dev_addr, addr + 2, 6);
-
- init_mac_tables(mp);
uc_addr_set(mp, dev->dev_addr);
- return 0;
+ port_config = rdlp(mp, PORT_CONFIG) & ~UNICAST_PROMISCUOUS_MODE;
+
+ nibbles = uc_addr_filter_mask(dev);
+ if (!nibbles) {
+ port_config |= UNICAST_PROMISCUOUS_MODE;
+ nibbles = 0xffff;
+ }
+
+ for (i = 0; i < 16; i += 4) {
+ int off = UNICAST_TABLE(mp->port_num) + i;
+ u32 v;
+
+ v = 0;
+ if (nibbles & 1)
+ v |= 0x00000001;
+ if (nibbles & 2)
+ v |= 0x00000100;
+ if (nibbles & 4)
+ v |= 0x00010000;
+ if (nibbles & 8)
+ v |= 0x01000000;
+ nibbles >>= 4;
+
+ wrl(mp, off, v);
+ }
+
+ wrlp(mp, PORT_CONFIG, port_config);
}
static int addr_crc(unsigned char *addr)
return crc;
}
-static void mv643xx_eth_set_rx_mode(struct net_device *dev)
+static void mv643xx_eth_program_multicast_filter(struct net_device *dev)
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
- u32 port_config;
+ u32 *mc_spec;
+ u32 *mc_other;
struct dev_addr_list *addr;
int i;
- port_config = rdl(mp, PORT_CONFIG(mp->port_num));
- if (dev->flags & IFF_PROMISC)
- port_config |= UNICAST_PROMISCUOUS_MODE;
- else
- port_config &= ~UNICAST_PROMISCUOUS_MODE;
- wrl(mp, PORT_CONFIG(mp->port_num), port_config);
-
if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) {
- int port_num = mp->port_num;
- u32 accept = 0x01010101;
+ int port_num;
+ u32 accept;
+oom:
+ port_num = mp->port_num;
+ accept = 0x01010101;
for (i = 0; i < 0x100; i += 4) {
wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept);
wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept);
return;
}
- for (i = 0; i < 0x100; i += 4) {
- wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0);
- wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0);
- }
+ mc_spec = kmalloc(0x200, GFP_ATOMIC);
+ if (mc_spec == NULL)
+ goto oom;
+ mc_other = mc_spec + (0x100 >> 2);
+
+ memset(mc_spec, 0, 0x100);
+ memset(mc_other, 0, 0x100);
for (addr = dev->mc_list; addr != NULL; addr = addr->next) {
u8 *a = addr->da_addr;
- int table;
-
- if (addr->da_addrlen != 6)
- continue;
+ u32 *table;
+ int entry;
if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) {
- table = SPECIAL_MCAST_TABLE(mp->port_num);
- set_filter_table_entry(mp, table, a[5]);
+ table = mc_spec;
+ entry = a[5];
} else {
- int crc = addr_crc(a);
-
- table = OTHER_MCAST_TABLE(mp->port_num);
- set_filter_table_entry(mp, table, crc);
+ table = mc_other;
+ entry = addr_crc(a);
}
+
+ table[entry >> 2] |= 1 << (8 * (entry & 3));
}
+
+ for (i = 0; i < 0x100; i += 4) {
+ wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, mc_spec[i >> 2]);
+ wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, mc_other[i >> 2]);
+ }
+
+ kfree(mc_spec);
+}
+
+static void mv643xx_eth_set_rx_mode(struct net_device *dev)
+{
+ mv643xx_eth_program_unicast_filter(dev);
+ mv643xx_eth_program_multicast_filter(dev);
+}
+
+static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr)
+{
+ struct sockaddr *sa = addr;
+
+ if (!is_valid_ether_addr(sa->sa_data))
+ return -EINVAL;
+
+ memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
+
+ netif_addr_lock_bh(dev);
+ mv643xx_eth_program_unicast_filter(dev);
+ netif_addr_unlock_bh(dev);
+
+ return 0;
}
rxq->index = index;
- rxq->rx_ring_size = mp->default_rx_ring_size;
+ rxq->rx_ring_size = mp->rx_ring_size;
rxq->rx_desc_count = 0;
rxq->rx_curr_desc = 0;
mp->rx_desc_sram_size);
rxq->rx_desc_dma = mp->rx_desc_sram_addr;
} else {
- rxq->rx_desc_area = dma_alloc_coherent(NULL, size,
- &rxq->rx_desc_dma,
- GFP_KERNEL);
+ rxq->rx_desc_area = dma_alloc_coherent(mp->dev->dev.parent,
+ size, &rxq->rx_desc_dma,
+ GFP_KERNEL);
}
if (rxq->rx_desc_area == NULL) {
nexti * sizeof(struct rx_desc);
}
+ rxq->lro_mgr.dev = mp->dev;
+ memset(&rxq->lro_mgr.stats, 0, sizeof(rxq->lro_mgr.stats));
+ rxq->lro_mgr.features = LRO_F_NAPI;
+ rxq->lro_mgr.ip_summed = CHECKSUM_UNNECESSARY;
+ rxq->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
+ rxq->lro_mgr.max_desc = ARRAY_SIZE(rxq->lro_arr);
+ rxq->lro_mgr.max_aggr = 32;
+ rxq->lro_mgr.frag_align_pad = 0;
+ rxq->lro_mgr.lro_arr = rxq->lro_arr;
+ rxq->lro_mgr.get_skb_header = mv643xx_get_skb_header;
+
+ memset(&rxq->lro_arr, 0, sizeof(rxq->lro_arr));
+
return 0;
if (index == 0 && size <= mp->rx_desc_sram_size)
iounmap(rxq->rx_desc_area);
else
- dma_free_coherent(NULL, size,
+ dma_free_coherent(mp->dev->dev.parent, size,
rxq->rx_desc_area,
rxq->rx_desc_dma);
rxq->rx_desc_area_size <= mp->rx_desc_sram_size)
iounmap(rxq->rx_desc_area);
else
- dma_free_coherent(NULL, rxq->rx_desc_area_size,
+ dma_free_coherent(mp->dev->dev.parent, rxq->rx_desc_area_size,
rxq->rx_desc_area, rxq->rx_desc_dma);
kfree(rxq->rx_skb);
txq->index = index;
- txq->tx_ring_size = mp->default_tx_ring_size;
+ txq->tx_ring_size = mp->tx_ring_size;
txq->tx_desc_count = 0;
txq->tx_curr_desc = 0;
mp->tx_desc_sram_size);
txq->tx_desc_dma = mp->tx_desc_sram_addr;
} else {
- txq->tx_desc_area = dma_alloc_coherent(NULL, size,
- &txq->tx_desc_dma,
- GFP_KERNEL);
+ txq->tx_desc_area = dma_alloc_coherent(mp->dev->dev.parent,
+ size, &txq->tx_desc_dma,
+ GFP_KERNEL);
}
if (txq->tx_desc_area == NULL) {
txq->tx_desc_area_size <= mp->tx_desc_sram_size)
iounmap(txq->tx_desc_area);
else
- dma_free_coherent(NULL, txq->tx_desc_area_size,
+ dma_free_coherent(mp->dev->dev.parent, txq->tx_desc_area_size,
txq->tx_desc_area, txq->tx_desc_dma);
}
u32 int_cause;
u32 int_cause_ext;
- int_cause = rdl(mp, INT_CAUSE(mp->port_num)) &
- (INT_TX_END | INT_RX | INT_EXT);
+ int_cause = rdlp(mp, INT_CAUSE) & mp->int_mask;
if (int_cause == 0)
return 0;
int_cause_ext = 0;
- if (int_cause & INT_EXT)
- int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num));
+ if (int_cause & INT_EXT) {
+ int_cause &= ~INT_EXT;
+ int_cause_ext = rdlp(mp, INT_CAUSE_EXT);
+ }
- int_cause &= INT_TX_END | INT_RX;
if (int_cause) {
- wrl(mp, INT_CAUSE(mp->port_num), ~int_cause);
+ wrlp(mp, INT_CAUSE, ~int_cause);
mp->work_tx_end |= ((int_cause & INT_TX_END) >> 19) &
- ~(rdl(mp, TXQ_COMMAND(mp->port_num)) & 0xff);
+ ~(rdlp(mp, TXQ_COMMAND) & 0xff);
mp->work_rx |= (int_cause & INT_RX) >> 2;
}
int_cause_ext &= INT_EXT_LINK_PHY | INT_EXT_TX;
if (int_cause_ext) {
- wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext);
+ wrlp(mp, INT_CAUSE_EXT, ~int_cause_ext);
if (int_cause_ext & INT_EXT_LINK_PHY)
mp->work_link = 1;
mp->work_tx |= int_cause_ext & INT_EXT_TX;
if (unlikely(!mv643xx_eth_collect_events(mp)))
return IRQ_NONE;
- wrl(mp, INT_MASK(mp->port_num), 0);
+ wrlp(mp, INT_MASK, 0);
napi_schedule(&mp->napi);
return IRQ_HANDLED;
int duplex;
int fc;
- port_status = rdl(mp, PORT_STATUS(mp->port_num));
+ port_status = rdlp(mp, PORT_STATUS);
if (!(port_status & LINK_UP)) {
if (netif_carrier_ok(dev)) {
int i;
mp = container_of(napi, struct mv643xx_eth_private, napi);
- mp->work_rx_refill |= mp->work_rx_oom;
- mp->work_rx_oom = 0;
+ if (unlikely(mp->oom)) {
+ mp->oom = 0;
+ del_timer(&mp->rx_oom);
+ }
work_done = 0;
while (work_done < budget) {
if (mp->work_link) {
mp->work_link = 0;
handle_link_event(mp);
+ work_done++;
continue;
}
- queue_mask = mp->work_tx | mp->work_tx_end |
- mp->work_rx | mp->work_rx_refill;
+ queue_mask = mp->work_tx | mp->work_tx_end | mp->work_rx;
+ if (likely(!mp->oom))
+ queue_mask |= mp->work_rx_refill;
+
if (!queue_mask) {
if (mv643xx_eth_collect_events(mp))
continue;
txq_maybe_wake(mp->txq + queue);
} else if (mp->work_rx & queue_mask) {
work_done += rxq_process(mp->rxq + queue, work_tbd);
- } else if (mp->work_rx_refill & queue_mask) {
+ } else if (!mp->oom && (mp->work_rx_refill & queue_mask)) {
work_done += rxq_refill(mp->rxq + queue, work_tbd);
} else {
BUG();
}
if (work_done < budget) {
- if (mp->work_rx_oom)
+ if (mp->oom)
mod_timer(&mp->rx_oom, jiffies + (HZ / 10));
napi_complete(napi);
- wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT);
+ wrlp(mp, INT_MASK, mp->int_mask);
}
return work_done;
{
int data;
- data = smi_reg_read(mp, mp->phy_addr, MII_BMCR);
+ data = phy_read(mp->phy, MII_BMCR);
if (data < 0)
return;
data |= BMCR_RESET;
- if (smi_reg_write(mp, mp->phy_addr, MII_BMCR, data) < 0)
+ if (phy_write(mp->phy, MII_BMCR, data) < 0)
return;
do {
- data = smi_reg_read(mp, mp->phy_addr, MII_BMCR);
+ data = phy_read(mp->phy, MII_BMCR);
} while (data >= 0 && data & BMCR_RESET);
}
/*
* Perform PHY reset, if there is a PHY.
*/
- if (mp->phy_addr != -1) {
+ if (mp->phy != NULL) {
struct ethtool_cmd cmd;
mv643xx_eth_get_settings(mp->dev, &cmd);
/*
* Configure basic link parameters.
*/
- pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num));
+ pscr = rdlp(mp, PORT_SERIAL_CONTROL);
pscr |= SERIAL_PORT_ENABLE;
- wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr);
+ wrlp(mp, PORT_SERIAL_CONTROL, pscr);
pscr |= DO_NOT_FORCE_LINK_FAIL;
- if (mp->phy_addr == -1)
+ if (mp->phy == NULL)
pscr |= FORCE_LINK_PASS;
- wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr);
-
- wrl(mp, SDMA_CONFIG(mp->port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE);
+ wrlp(mp, PORT_SERIAL_CONTROL, pscr);
/*
* Configure TX path and queues.
}
/*
- * Add configured unicast address to address filter table.
+ * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast
+ * frames to RX queue #0, and include the pseudo-header when
+ * calculating receive checksums.
*/
- uc_addr_set(mp, mp->dev->dev_addr);
+ wrlp(mp, PORT_CONFIG, 0x02000000);
/*
- * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast
- * frames to RX queue #0.
+ * Treat BPDUs as normal multicasts, and disable partition mode.
*/
- wrl(mp, PORT_CONFIG(mp->port_num), 0x00000000);
+ wrlp(mp, PORT_CONFIG_EXT, 0x00000000);
/*
- * Treat BPDUs as normal multicasts, and disable partition mode.
+ * Add configured unicast addresses to address filter table.
*/
- wrl(mp, PORT_CONFIG_EXT(mp->port_num), 0x00000000);
+ mv643xx_eth_program_unicast_filter(mp->dev);
/*
* Enable the receive queues.
*/
for (i = 0; i < mp->rxq_count; i++) {
struct rx_queue *rxq = mp->rxq + i;
- int off = RXQ_CURRENT_DESC_PTR(mp->port_num, i);
u32 addr;
addr = (u32)rxq->rx_desc_dma;
addr += rxq->rx_curr_desc * sizeof(struct rx_desc);
- wrl(mp, off, addr);
+ wrlp(mp, RXQ_CURRENT_DESC_PTR(i), addr);
rxq_enable(rxq);
}
}
-static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int delay)
+static void mv643xx_eth_recalc_skb_size(struct mv643xx_eth_private *mp)
{
- unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64;
- u32 val;
+ int skb_size;
- val = rdl(mp, SDMA_CONFIG(mp->port_num));
- if (mp->shared->extended_rx_coal_limit) {
- if (coal > 0xffff)
- coal = 0xffff;
- val &= ~0x023fff80;
- val |= (coal & 0x8000) << 10;
- val |= (coal & 0x7fff) << 7;
- } else {
- if (coal > 0x3fff)
- coal = 0x3fff;
- val &= ~0x003fff00;
- val |= (coal & 0x3fff) << 8;
- }
- wrl(mp, SDMA_CONFIG(mp->port_num), val);
-}
+ /*
+ * Reserve 2+14 bytes for an ethernet header (the hardware
+ * automatically prepends 2 bytes of dummy data to each
+ * received packet), 16 bytes for up to four VLAN tags, and
+ * 4 bytes for the trailing FCS -- 36 bytes total.
+ */
+ skb_size = mp->dev->mtu + 36;
-static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int delay)
-{
- unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64;
+ /*
+ * Make sure that the skb size is a multiple of 8 bytes, as
+ * the lower three bits of the receive descriptor's buffer
+ * size field are ignored by the hardware.
+ */
+ mp->skb_size = (skb_size + 7) & ~7;
- if (coal > 0x3fff)
- coal = 0x3fff;
- wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), (coal & 0x3fff) << 4);
+ /*
+ * If NET_SKB_PAD is smaller than a cache line,
+ * netdev_alloc_skb() will cause skb->data to be misaligned
+ * to a cache line boundary. If this is the case, include
+ * some extra space to allow re-aligning the data area.
+ */
+ mp->skb_size += SKB_DMA_REALIGN;
}
static int mv643xx_eth_open(struct net_device *dev)
int err;
int i;
- wrl(mp, INT_CAUSE(mp->port_num), 0);
- wrl(mp, INT_CAUSE_EXT(mp->port_num), 0);
- rdl(mp, INT_CAUSE_EXT(mp->port_num));
+ wrlp(mp, INT_CAUSE, 0);
+ wrlp(mp, INT_CAUSE_EXT, 0);
+ rdlp(mp, INT_CAUSE_EXT);
err = request_irq(dev->irq, mv643xx_eth_irq,
IRQF_SHARED, dev->name, dev);
return -EAGAIN;
}
- init_mac_tables(mp);
+ mv643xx_eth_recalc_skb_size(mp);
napi_enable(&mp->napi);
+ skb_queue_head_init(&mp->rx_recycle);
+
+ mp->int_mask = INT_EXT;
+
for (i = 0; i < mp->rxq_count; i++) {
err = rxq_init(mp, i);
if (err) {
}
rxq_refill(mp->rxq + i, INT_MAX);
+ mp->int_mask |= INT_RX_0 << i;
}
- if (mp->work_rx_oom) {
+ if (mp->oom) {
mp->rx_oom.expires = jiffies + (HZ / 10);
add_timer(&mp->rx_oom);
}
txq_deinit(mp->txq + i);
goto out_free;
}
+ mp->int_mask |= INT_TX_END_0 << i;
}
- netif_carrier_off(dev);
-
port_start(mp);
- set_rx_coal(mp, 0);
- set_tx_coal(mp, 0);
-
- wrl(mp, INT_MASK_EXT(mp->port_num), INT_EXT_LINK_PHY | INT_EXT_TX);
- wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT);
+ wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX);
+ wrlp(mp, INT_MASK, mp->int_mask);
return 0;
txq_disable(mp->txq + i);
while (1) {
- u32 ps = rdl(mp, PORT_STATUS(mp->port_num));
+ u32 ps = rdlp(mp, PORT_STATUS);
if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY)
break;
}
/* Reset the Enable bit in the Configuration Register */
- data = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num));
+ data = rdlp(mp, PORT_SERIAL_CONTROL);
data &= ~(SERIAL_PORT_ENABLE |
DO_NOT_FORCE_LINK_FAIL |
FORCE_LINK_PASS);
- wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), data);
+ wrlp(mp, PORT_SERIAL_CONTROL, data);
}
static int mv643xx_eth_stop(struct net_device *dev)
struct mv643xx_eth_private *mp = netdev_priv(dev);
int i;
- wrl(mp, INT_MASK(mp->port_num), 0x00000000);
- rdl(mp, INT_MASK(mp->port_num));
+ wrlp(mp, INT_MASK_EXT, 0x00000000);
+ wrlp(mp, INT_MASK, 0x00000000);
+ rdlp(mp, INT_MASK);
napi_disable(&mp->napi);
port_reset(mp);
mv643xx_eth_get_stats(dev);
mib_counters_update(mp);
+ del_timer_sync(&mp->mib_counters_timer);
+
+ skb_queue_purge(&mp->rx_recycle);
for (i = 0; i < mp->rxq_count; i++)
rxq_deinit(mp->rxq + i);
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
- if (mp->phy_addr != -1)
- return generic_mii_ioctl(&mp->mii, if_mii(ifr), cmd, NULL);
+ if (mp->phy != NULL)
+ return phy_mii_ioctl(mp->phy, if_mii(ifr), cmd);
return -EOPNOTSUPP;
}
return -EINVAL;
dev->mtu = new_mtu;
+ mv643xx_eth_recalc_skb_size(mp);
tx_set_rate(mp, 1000000000, 16777216);
if (!netif_running(dev))
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
- wrl(mp, INT_MASK(mp->port_num), 0x00000000);
- rdl(mp, INT_MASK(mp->port_num));
+ wrlp(mp, INT_MASK, 0x00000000);
+ rdlp(mp, INT_MASK);
mv643xx_eth_irq(dev->irq, dev);
- wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT);
+ wrlp(mp, INT_MASK, mp->int_mask);
}
#endif
-static int mv643xx_eth_mdio_read(struct net_device *dev, int addr, int reg)
-{
- struct mv643xx_eth_private *mp = netdev_priv(dev);
- return smi_reg_read(mp, addr, reg);
-}
-
-static void mv643xx_eth_mdio_write(struct net_device *dev, int addr, int reg, int val)
-{
- struct mv643xx_eth_private *mp = netdev_priv(dev);
- smi_reg_write(mp, addr, reg, val);
-}
-
/* platform glue ************************************************************/
static void
* [21:8], or a 16-bit coal limit in bits [25,21:7] of the
* SDMA config register.
*/
- writel(0x02000000, msp->base + SDMA_CONFIG(0));
- if (readl(msp->base + SDMA_CONFIG(0)) & 0x02000000)
+ writel(0x02000000, msp->base + 0x0400 + SDMA_CONFIG);
+ if (readl(msp->base + 0x0400 + SDMA_CONFIG) & 0x02000000)
msp->extended_rx_coal_limit = 1;
else
msp->extended_rx_coal_limit = 0;
/*
- * Check whether the TX rate control registers are in the
- * old or the new place.
+ * Check whether the MAC supports TX rate control, and if
+ * yes, whether its associated registers are in the old or
+ * the new place.
*/
- writel(1, msp->base + TX_BW_MTU_MOVED(0));
- if (readl(msp->base + TX_BW_MTU_MOVED(0)) & 1)
- msp->tx_bw_control_moved = 1;
- else
- msp->tx_bw_control_moved = 0;
+ writel(1, msp->base + 0x0400 + TX_BW_MTU_MOVED);
+ if (readl(msp->base + 0x0400 + TX_BW_MTU_MOVED) & 1) {
+ msp->tx_bw_control = TX_BW_CONTROL_NEW_LAYOUT;
+ } else {
+ writel(7, msp->base + 0x0400 + TX_BW_RATE);
+ if (readl(msp->base + 0x0400 + TX_BW_RATE) & 7)
+ msp->tx_bw_control = TX_BW_CONTROL_OLD_LAYOUT;
+ else
+ msp->tx_bw_control = TX_BW_CONTROL_ABSENT;
+ }
}
static int mv643xx_eth_shared_probe(struct platform_device *pdev)
{
- static int mv643xx_eth_version_printed = 0;
+ static int mv643xx_eth_version_printed;
struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data;
struct mv643xx_eth_shared_private *msp;
struct resource *res;
if (msp->base == NULL)
goto out_free;
- msp->smi = msp;
- if (pd != NULL && pd->shared_smi != NULL)
+ /*
+ * Set up and register SMI bus.
+ */
+ if (pd == NULL || pd->shared_smi == NULL) {
+ msp->smi_bus = mdiobus_alloc();
+ if (msp->smi_bus == NULL)
+ goto out_unmap;
+
+ msp->smi_bus->priv = msp;
+ msp->smi_bus->name = "mv643xx_eth smi";
+ msp->smi_bus->read = smi_bus_read;
+ msp->smi_bus->write = smi_bus_write,
+ snprintf(msp->smi_bus->id, MII_BUS_ID_SIZE, "%d", pdev->id);
+ msp->smi_bus->parent = &pdev->dev;
+ msp->smi_bus->phy_mask = 0xffffffff;
+ if (mdiobus_register(msp->smi_bus) < 0)
+ goto out_free_mii_bus;
+ msp->smi = msp;
+ } else {
msp->smi = platform_get_drvdata(pd->shared_smi);
-
- mutex_init(&msp->phy_lock);
+ }
msp->err_interrupt = NO_IRQ;
init_waitqueue_head(&msp->smi_busy_wait);
return 0;
+out_free_mii_bus:
+ mdiobus_free(msp->smi_bus);
+out_unmap:
+ iounmap(msp->base);
out_free:
kfree(msp);
out:
static int mv643xx_eth_shared_remove(struct platform_device *pdev)
{
struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev);
+ struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data;
+ if (pd == NULL || pd->shared_smi == NULL) {
+ mdiobus_unregister(msp->smi_bus);
+ mdiobus_free(msp->smi_bus);
+ }
if (msp->err_interrupt != NO_IRQ)
free_irq(msp->err_interrupt, msp);
iounmap(msp->base);
else
uc_addr_get(mp, dev->dev_addr);
- if (pd->phy_addr == MV643XX_ETH_PHY_NONE) {
- mp->phy_addr = -1;
- } else {
- if (pd->phy_addr != MV643XX_ETH_PHY_ADDR_DEFAULT) {
- mp->phy_addr = pd->phy_addr & 0x3f;
- phy_addr_set(mp, mp->phy_addr);
- } else {
- mp->phy_addr = phy_addr_get(mp);
- }
- }
-
- mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE;
+ mp->rx_ring_size = DEFAULT_RX_QUEUE_SIZE;
if (pd->rx_queue_size)
- mp->default_rx_ring_size = pd->rx_queue_size;
+ mp->rx_ring_size = pd->rx_queue_size;
mp->rx_desc_sram_addr = pd->rx_sram_addr;
mp->rx_desc_sram_size = pd->rx_sram_size;
mp->rxq_count = pd->rx_queue_count ? : 1;
- mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE;
+ mp->tx_ring_size = DEFAULT_TX_QUEUE_SIZE;
if (pd->tx_queue_size)
- mp->default_tx_ring_size = pd->tx_queue_size;
+ mp->tx_ring_size = pd->tx_queue_size;
mp->tx_desc_sram_addr = pd->tx_sram_addr;
mp->tx_desc_sram_size = pd->tx_sram_size;
mp->txq_count = pd->tx_queue_count ? : 1;
}
-static int phy_detect(struct mv643xx_eth_private *mp)
+static struct phy_device *phy_scan(struct mv643xx_eth_private *mp,
+ int phy_addr)
{
- int data;
- int data2;
-
- data = smi_reg_read(mp, mp->phy_addr, MII_BMCR);
- if (data < 0)
- return -ENODEV;
+ struct mii_bus *bus = mp->shared->smi->smi_bus;
+ struct phy_device *phydev;
+ int start;
+ int num;
+ int i;
- if (smi_reg_write(mp, mp->phy_addr, MII_BMCR, data ^ BMCR_ANENABLE) < 0)
- return -ENODEV;
+ if (phy_addr == MV643XX_ETH_PHY_ADDR_DEFAULT) {
+ start = phy_addr_get(mp) & 0x1f;
+ num = 32;
+ } else {
+ start = phy_addr & 0x1f;
+ num = 1;
+ }
- data2 = smi_reg_read(mp, mp->phy_addr, MII_BMCR);
- if (data2 < 0)
- return -ENODEV;
+ phydev = NULL;
+ for (i = 0; i < num; i++) {
+ int addr = (start + i) & 0x1f;
- if (((data ^ data2) & BMCR_ANENABLE) == 0)
- return -ENODEV;
+ if (bus->phy_map[addr] == NULL)
+ mdiobus_scan(bus, addr);
- smi_reg_write(mp, mp->phy_addr, MII_BMCR, data);
+ if (phydev == NULL) {
+ phydev = bus->phy_map[addr];
+ if (phydev != NULL)
+ phy_addr_set(mp, addr);
+ }
+ }
- return 0;
+ return phydev;
}
-static int phy_init(struct mv643xx_eth_private *mp,
- struct mv643xx_eth_platform_data *pd)
+static void phy_init(struct mv643xx_eth_private *mp, int speed, int duplex)
{
- struct ethtool_cmd cmd;
- int err;
+ struct phy_device *phy = mp->phy;
- err = phy_detect(mp);
- if (err) {
- dev_printk(KERN_INFO, &mp->dev->dev,
- "no PHY detected at addr %d\n", mp->phy_addr);
- return err;
- }
phy_reset(mp);
- mp->mii.phy_id = mp->phy_addr;
- mp->mii.phy_id_mask = 0x3f;
- mp->mii.reg_num_mask = 0x1f;
- mp->mii.dev = mp->dev;
- mp->mii.mdio_read = mv643xx_eth_mdio_read;
- mp->mii.mdio_write = mv643xx_eth_mdio_write;
-
- mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii);
-
- memset(&cmd, 0, sizeof(cmd));
-
- cmd.port = PORT_MII;
- cmd.transceiver = XCVR_INTERNAL;
- cmd.phy_address = mp->phy_addr;
- if (pd->speed == 0) {
- cmd.autoneg = AUTONEG_ENABLE;
- cmd.speed = SPEED_100;
- cmd.advertising = ADVERTISED_10baseT_Half |
- ADVERTISED_10baseT_Full |
- ADVERTISED_100baseT_Half |
- ADVERTISED_100baseT_Full;
- if (mp->mii.supports_gmii)
- cmd.advertising |= ADVERTISED_1000baseT_Full;
+ phy_attach(mp->dev, dev_name(&phy->dev), 0, PHY_INTERFACE_MODE_GMII);
+
+ if (speed == 0) {
+ phy->autoneg = AUTONEG_ENABLE;
+ phy->speed = 0;
+ phy->duplex = 0;
+ phy->advertising = phy->supported | ADVERTISED_Autoneg;
} else {
- cmd.autoneg = AUTONEG_DISABLE;
- cmd.speed = pd->speed;
- cmd.duplex = pd->duplex;
+ phy->autoneg = AUTONEG_DISABLE;
+ phy->advertising = 0;
+ phy->speed = speed;
+ phy->duplex = duplex;
}
-
- mv643xx_eth_set_settings(mp->dev, &cmd);
-
- return 0;
+ phy_start_aneg(phy);
}
static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex)
{
u32 pscr;
- pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num));
+ pscr = rdlp(mp, PORT_SERIAL_CONTROL);
if (pscr & SERIAL_PORT_ENABLE) {
pscr &= ~SERIAL_PORT_ENABLE;
- wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr);
+ wrlp(mp, PORT_SERIAL_CONTROL, pscr);
}
pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED;
- if (mp->phy_addr == -1) {
+ if (mp->phy == NULL) {
pscr |= DISABLE_AUTO_NEG_SPEED_GMII;
if (speed == SPEED_1000)
pscr |= SET_GMII_SPEED_TO_1000;
pscr |= SET_FULL_DUPLEX_MODE;
}
- wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr);
+ wrlp(mp, PORT_SERIAL_CONTROL, pscr);
}
+static const struct net_device_ops mv643xx_eth_netdev_ops = {
+ .ndo_open = mv643xx_eth_open,
+ .ndo_stop = mv643xx_eth_stop,
+ .ndo_start_xmit = mv643xx_eth_xmit,
+ .ndo_set_rx_mode = mv643xx_eth_set_rx_mode,
+ .ndo_set_mac_address = mv643xx_eth_set_mac_address,
+ .ndo_do_ioctl = mv643xx_eth_ioctl,
+ .ndo_change_mtu = mv643xx_eth_change_mtu,
+ .ndo_tx_timeout = mv643xx_eth_tx_timeout,
+ .ndo_get_stats = mv643xx_eth_get_stats,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = mv643xx_eth_netpoll,
+#endif
+};
+
static int mv643xx_eth_probe(struct platform_device *pdev)
{
struct mv643xx_eth_platform_data *pd;
struct mv643xx_eth_private *mp;
struct net_device *dev;
struct resource *res;
- DECLARE_MAC_BUF(mac);
int err;
pd = pdev->dev.platform_data;
platform_set_drvdata(pdev, mp);
mp->shared = platform_get_drvdata(pd->shared);
+ mp->base = mp->shared->base + 0x0400 + (pd->port_number << 10);
mp->port_num = pd->port_number;
mp->dev = dev;
set_params(mp, pd);
dev->real_num_tx_queues = mp->txq_count;
- mib_counters_clear(mp);
- INIT_WORK(&mp->tx_timeout_task, tx_timeout_task);
+ if (pd->phy_addr != MV643XX_ETH_PHY_NONE)
+ mp->phy = phy_scan(mp, pd->phy_addr);
- if (mp->phy_addr != -1) {
- err = phy_init(mp, pd);
- if (err)
- goto out;
+ if (mp->phy != NULL)
+ phy_init(mp, pd->speed, pd->duplex);
+
+ SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops);
- SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops);
- } else {
- SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops_phyless);
- }
init_pscr(mp, pd->speed, pd->duplex);
+
+ mib_counters_clear(mp);
+
+ init_timer(&mp->mib_counters_timer);
+ mp->mib_counters_timer.data = (unsigned long)mp;
+ mp->mib_counters_timer.function = mib_counters_timer_wrapper;
+ mp->mib_counters_timer.expires = jiffies + 30 * HZ;
+ add_timer(&mp->mib_counters_timer);
+
+ spin_lock_init(&mp->mib_counters_lock);
+
+ INIT_WORK(&mp->tx_timeout_task, tx_timeout_task);
+
netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 128);
init_timer(&mp->rx_oom);
BUG_ON(!res);
dev->irq = res->start;
- dev->get_stats = mv643xx_eth_get_stats;
- dev->hard_start_xmit = mv643xx_eth_xmit;
- dev->open = mv643xx_eth_open;
- dev->stop = mv643xx_eth_stop;
- dev->set_multicast_list = mv643xx_eth_set_rx_mode;
- dev->set_mac_address = mv643xx_eth_set_mac_address;
- dev->do_ioctl = mv643xx_eth_ioctl;
- dev->change_mtu = mv643xx_eth_change_mtu;
- dev->tx_timeout = mv643xx_eth_tx_timeout;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- dev->poll_controller = mv643xx_eth_netpoll;
-#endif
+ dev->netdev_ops = &mv643xx_eth_netdev_ops;
+
dev->watchdog_timeo = 2 * HZ;
dev->base_addr = 0;
if (mp->shared->win_protect)
wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect);
+ netif_carrier_off(dev);
+
+ wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE);
+
+ set_rx_coal(mp, 250);
+ set_tx_coal(mp, 0);
+
err = register_netdev(dev);
if (err)
goto out;
- dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %s\n",
- mp->port_num, print_mac(mac, dev->dev_addr));
+ dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %pM\n",
+ mp->port_num, dev->dev_addr);
if (mp->tx_desc_sram_size > 0)
dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n");
struct mv643xx_eth_private *mp = platform_get_drvdata(pdev);
unregister_netdev(mp->dev);
+ if (mp->phy != NULL)
+ phy_detach(mp->phy);
flush_scheduled_work();
free_netdev(mp->dev);
struct mv643xx_eth_private *mp = platform_get_drvdata(pdev);
/* Mask all interrupts on ethernet port */
- wrl(mp, INT_MASK(mp->port_num), 0);
- rdl(mp, INT_MASK(mp->port_num));
+ wrlp(mp, INT_MASK, 0);
+ rdlp(mp, INT_MASK);
if (netif_running(mp->dev))
port_reset(mp);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff