#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
+#include <linux/mii.h>
#include <linux/mv643xx.h>
-#define BIT0 0x00000001
-#define BIT1 0x00000002
-#define BIT2 0x00000004
-#define BIT3 0x00000008
-#define BIT4 0x00000010
-#define BIT5 0x00000020
-#define BIT6 0x00000040
-#define BIT7 0x00000080
-#define BIT8 0x00000100
-#define BIT9 0x00000200
-#define BIT10 0x00000400
-#define BIT11 0x00000800
-#define BIT12 0x00001000
-#define BIT13 0x00002000
-#define BIT14 0x00004000
-#define BIT15 0x00008000
-#define BIT16 0x00010000
-#define BIT17 0x00020000
-#define BIT18 0x00040000
-#define BIT19 0x00080000
-#define BIT20 0x00100000
-#define BIT21 0x00200000
-#define BIT22 0x00400000
-#define BIT23 0x00800000
-#define BIT24 0x01000000
-#define BIT25 0x02000000
-#define BIT26 0x04000000
-#define BIT27 0x08000000
-#define BIT28 0x10000000
-#define BIT29 0x20000000
-#define BIT30 0x40000000
-#define BIT31 0x80000000
-
-/*
- * The first part is the high level driver of the gigE ethernet ports.
- */
-
/* Checksum offload for Tx works for most packets, but
* fails if previous packet sent did not use hw csum
*/
#define MV643XX_CHECKSUM_OFFLOAD_TX
#define MV643XX_NAPI
#define MV643XX_TX_FAST_REFILL
-#undef MV643XX_RX_QUEUE_FILL_ON_TASK /* Does not work, yet */
#undef MV643XX_COAL
/*
#define MV643XX_RX_COAL 100
#endif
-/*
- * The second part is the low level driver of the gigE ethernet ports.
- */
+#ifdef MV643XX_CHECKSUM_OFFLOAD_TX
+#define MAX_DESCS_PER_SKB (MAX_SKB_FRAGS + 1)
+#else
+#define MAX_DESCS_PER_SKB 1
+#endif
/*
- * Header File for : MV-643xx network interface header
- *
- * DESCRIPTION:
- * This header file contains macros typedefs and function declaration for
- * the Marvell Gig Bit Ethernet Controller.
- *
- * DEPENDENCIES:
- * None.
- *
+ * The MV643XX HW requires 8-byte alignment. However, when I/O
+ * is non-cache-coherent, we need to ensure that the I/O buffers
+ * we use don't share cache lines with other data.
*/
+#if defined(CONFIG_DMA_NONCOHERENT) || defined(CONFIG_NOT_COHERENT_CACHE)
+#define ETH_DMA_ALIGN L1_CACHE_BYTES
+#else
+#define ETH_DMA_ALIGN 8
+#endif
+
+#define ETH_VLAN_HLEN 4
+#define ETH_FCS_LEN 4
+#define ETH_HW_IP_ALIGN 2 /* hw aligns IP header */
+#define ETH_WRAPPER_LEN (ETH_HW_IP_ALIGN + ETH_HLEN + \
+ ETH_VLAN_HLEN + ETH_FCS_LEN)
+#define ETH_RX_SKB_SIZE (dev->mtu + ETH_WRAPPER_LEN + ETH_DMA_ALIGN)
+
+#define ETH_RX_QUEUES_ENABLED (1 << 0) /* use only Q0 for receive */
+#define ETH_TX_QUEUES_ENABLED (1 << 0) /* use only Q0 for transmit */
-/* MAC accepet/reject macros */
-#define ACCEPT_MAC_ADDR 0
-#define REJECT_MAC_ADDR 1
+#define ETH_INT_CAUSE_RX_DONE (ETH_RX_QUEUES_ENABLED << 2)
+#define ETH_INT_CAUSE_RX_ERROR (ETH_RX_QUEUES_ENABLED << 9)
+#define ETH_INT_CAUSE_RX (ETH_INT_CAUSE_RX_DONE | ETH_INT_CAUSE_RX_ERROR)
+#define ETH_INT_CAUSE_EXT 0x00000002
+#define ETH_INT_UNMASK_ALL (ETH_INT_CAUSE_RX | ETH_INT_CAUSE_EXT)
+
+#define ETH_INT_CAUSE_TX_DONE (ETH_TX_QUEUES_ENABLED << 0)
+#define ETH_INT_CAUSE_TX_ERROR (ETH_TX_QUEUES_ENABLED << 8)
+#define ETH_INT_CAUSE_TX (ETH_INT_CAUSE_TX_DONE | ETH_INT_CAUSE_TX_ERROR)
+#define ETH_INT_CAUSE_PHY 0x00010000
+#define ETH_INT_UNMASK_ALL_EXT (ETH_INT_CAUSE_TX | ETH_INT_CAUSE_PHY)
+
+#define ETH_INT_MASK_ALL 0x00000000
+#define ETH_INT_MASK_ALL_EXT 0x00000000
+
+#define PHY_WAIT_ITERATIONS 1000 /* 1000 iterations * 10uS = 10mS max */
+#define PHY_WAIT_MICRO_SECONDS 10
/* Buffer offset from buffer pointer */
#define RX_BUF_OFFSET 0x2
#define ETH_MIB_LATE_COLLISION 0x7c
/* Port serial status reg (PSR) */
-#define ETH_INTERFACE_GMII_MII 0
-#define ETH_INTERFACE_PCM BIT0
-#define ETH_LINK_IS_DOWN 0
-#define ETH_LINK_IS_UP BIT1
-#define ETH_PORT_AT_HALF_DUPLEX 0
-#define ETH_PORT_AT_FULL_DUPLEX BIT2
-#define ETH_RX_FLOW_CTRL_DISABLED 0
-#define ETH_RX_FLOW_CTRL_ENBALED BIT3
-#define ETH_GMII_SPEED_100_10 0
-#define ETH_GMII_SPEED_1000 BIT4
-#define ETH_MII_SPEED_10 0
-#define ETH_MII_SPEED_100 BIT5
-#define ETH_NO_TX 0
-#define ETH_TX_IN_PROGRESS BIT7
-#define ETH_BYPASS_NO_ACTIVE 0
-#define ETH_BYPASS_ACTIVE BIT8
-#define ETH_PORT_NOT_AT_PARTITION_STATE 0
-#define ETH_PORT_AT_PARTITION_STATE BIT9
-#define ETH_PORT_TX_FIFO_NOT_EMPTY 0
-#define ETH_PORT_TX_FIFO_EMPTY BIT10
-
-#define ETH_DEFAULT_RX_BPDU_QUEUE_3 (BIT23 | BIT22)
-#define ETH_DEFAULT_RX_BPDU_QUEUE_4 BIT24
-#define ETH_DEFAULT_RX_BPDU_QUEUE_5 (BIT24 | BIT22)
-#define ETH_DEFAULT_RX_BPDU_QUEUE_6 (BIT24 | BIT23)
-#define ETH_DEFAULT_RX_BPDU_QUEUE_7 (BIT24 | BIT23 | BIT22)
+#define ETH_INTERFACE_PCM 0x00000001
+#define ETH_LINK_IS_UP 0x00000002
+#define ETH_PORT_AT_FULL_DUPLEX 0x00000004
+#define ETH_RX_FLOW_CTRL_ENABLED 0x00000008
+#define ETH_GMII_SPEED_1000 0x00000010
+#define ETH_MII_SPEED_100 0x00000020
+#define ETH_TX_IN_PROGRESS 0x00000080
+#define ETH_BYPASS_ACTIVE 0x00000100
+#define ETH_PORT_AT_PARTITION_STATE 0x00000200
+#define ETH_PORT_TX_FIFO_EMPTY 0x00000400
/* SMI reg */
-#define ETH_SMI_BUSY BIT28 /* 0 - Write, 1 - Read */
-#define ETH_SMI_READ_VALID BIT27 /* 0 - Write, 1 - Read */
-#define ETH_SMI_OPCODE_WRITE 0 /* Completion of Read operation */
-#define ETH_SMI_OPCODE_READ BIT26 /* Operation is in progress */
+#define ETH_SMI_BUSY 0x10000000 /* 0 - Write, 1 - Read */
+#define ETH_SMI_READ_VALID 0x08000000 /* 0 - Write, 1 - Read */
+#define ETH_SMI_OPCODE_WRITE 0 /* Completion of Read */
+#define ETH_SMI_OPCODE_READ 0x04000000 /* Operation is in progress */
+
+/* Interrupt Cause Register Bit Definitions */
/* SDMA command status fields macros */
/* Tx & Rx descriptors status */
-#define ETH_ERROR_SUMMARY (BIT0)
+#define ETH_ERROR_SUMMARY 0x00000001
/* Tx & Rx descriptors command */
-#define ETH_BUFFER_OWNED_BY_DMA (BIT31)
+#define ETH_BUFFER_OWNED_BY_DMA 0x80000000
/* Tx descriptors status */
-#define ETH_LC_ERROR (0 )
-#define ETH_UR_ERROR (BIT1 )
-#define ETH_RL_ERROR (BIT2 )
-#define ETH_LLC_SNAP_FORMAT (BIT9 )
+#define ETH_LC_ERROR 0
+#define ETH_UR_ERROR 0x00000002
+#define ETH_RL_ERROR 0x00000004
+#define ETH_LLC_SNAP_FORMAT 0x00000200
/* Rx descriptors status */
-#define ETH_CRC_ERROR (0 )
-#define ETH_OVERRUN_ERROR (BIT1 )
-#define ETH_MAX_FRAME_LENGTH_ERROR (BIT2 )
-#define ETH_RESOURCE_ERROR ((BIT2 | BIT1))
-#define ETH_VLAN_TAGGED (BIT19)
-#define ETH_BPDU_FRAME (BIT20)
-#define ETH_TCP_FRAME_OVER_IP_V_4 (0 )
-#define ETH_UDP_FRAME_OVER_IP_V_4 (BIT21)
-#define ETH_OTHER_FRAME_TYPE (BIT22)
-#define ETH_LAYER_2_IS_ETH_V_2 (BIT23)
-#define ETH_FRAME_TYPE_IP_V_4 (BIT24)
-#define ETH_FRAME_HEADER_OK (BIT25)
-#define ETH_RX_LAST_DESC (BIT26)
-#define ETH_RX_FIRST_DESC (BIT27)
-#define ETH_UNKNOWN_DESTINATION_ADDR (BIT28)
-#define ETH_RX_ENABLE_INTERRUPT (BIT29)
-#define ETH_LAYER_4_CHECKSUM_OK (BIT30)
+#define ETH_OVERRUN_ERROR 0x00000002
+#define ETH_MAX_FRAME_LENGTH_ERROR 0x00000004
+#define ETH_RESOURCE_ERROR 0x00000006
+#define ETH_VLAN_TAGGED 0x00080000
+#define ETH_BPDU_FRAME 0x00100000
+#define ETH_UDP_FRAME_OVER_IP_V_4 0x00200000
+#define ETH_OTHER_FRAME_TYPE 0x00400000
+#define ETH_LAYER_2_IS_ETH_V_2 0x00800000
+#define ETH_FRAME_TYPE_IP_V_4 0x01000000
+#define ETH_FRAME_HEADER_OK 0x02000000
+#define ETH_RX_LAST_DESC 0x04000000
+#define ETH_RX_FIRST_DESC 0x08000000
+#define ETH_UNKNOWN_DESTINATION_ADDR 0x10000000
+#define ETH_RX_ENABLE_INTERRUPT 0x20000000
+#define ETH_LAYER_4_CHECKSUM_OK 0x40000000
/* Rx descriptors byte count */
-#define ETH_FRAME_FRAGMENTED (BIT2)
+#define ETH_FRAME_FRAGMENTED 0x00000004
/* Tx descriptors command */
-#define ETH_LAYER_4_CHECKSUM_FIRST_DESC (BIT10)
-#define ETH_FRAME_SET_TO_VLAN (BIT15)
-#define ETH_TCP_FRAME (0 )
-#define ETH_UDP_FRAME (BIT16)
-#define ETH_GEN_TCP_UDP_CHECKSUM (BIT17)
-#define ETH_GEN_IP_V_4_CHECKSUM (BIT18)
-#define ETH_ZERO_PADDING (BIT19)
-#define ETH_TX_LAST_DESC (BIT20)
-#define ETH_TX_FIRST_DESC (BIT21)
-#define ETH_GEN_CRC (BIT22)
-#define ETH_TX_ENABLE_INTERRUPT (BIT23)
-#define ETH_AUTO_MODE (BIT30)
+#define ETH_LAYER_4_CHECKSUM_FIRST_DESC 0x00000400
+#define ETH_FRAME_SET_TO_VLAN 0x00008000
+#define ETH_UDP_FRAME 0x00010000
+#define ETH_GEN_TCP_UDP_CHECKSUM 0x00020000
+#define ETH_GEN_IP_V_4_CHECKSUM 0x00040000
+#define ETH_ZERO_PADDING 0x00080000
+#define ETH_TX_LAST_DESC 0x00100000
+#define ETH_TX_FIRST_DESC 0x00200000
+#define ETH_GEN_CRC 0x00400000
+#define ETH_TX_ENABLE_INTERRUPT 0x00800000
+#define ETH_AUTO_MODE 0x40000000
#define ETH_TX_IHL_SHIFT 11
struct sk_buff *return_info; /* User resource return information */
};
-/* Ethernet port specific infomation */
+/* Ethernet port specific information */
struct mv643xx_mib_counters {
u64 good_octets_received;
struct mv643xx_private {
int port_num; /* User Ethernet port number */
- u8 port_mac_addr[6]; /* User defined port MAC address.*/
- u32 port_config; /* User port configuration value*/
- u32 port_config_extend; /* User port config extend value*/
- u32 port_sdma_config; /* User port SDMA config value */
- u32 port_serial_control; /* User port serial control value */
- u32 port_tx_queue_command; /* Port active Tx queues summary*/
- u32 port_rx_queue_command; /* Port active Rx queues summary*/
u32 rx_sram_addr; /* Base address of rx sram area */
u32 rx_sram_size; /* Size of rx sram area */
u32 tx_sram_size; /* Size of tx sram area */
int rx_resource_err; /* Rx ring resource error flag */
- int tx_resource_err; /* Tx ring resource error flag */
/* Tx/Rx rings managment indexes fields. For driver use */
/* Next available and first returning Tx resource */
int tx_curr_desc_q, tx_used_desc_q;
-#ifdef MV643XX_CHECKSUM_OFFLOAD_TX
- int tx_first_desc_q;
- u32 tx_first_command;
-#endif
#ifdef MV643XX_TX_FAST_REFILL
u32 tx_clean_threshold;
struct eth_rx_desc *p_rx_desc_area;
dma_addr_t rx_desc_dma;
- unsigned int rx_desc_area_size;
+ int rx_desc_area_size;
struct sk_buff **rx_skb;
struct eth_tx_desc *p_tx_desc_area;
dma_addr_t tx_desc_dma;
- unsigned int tx_desc_area_size;
+ int tx_desc_area_size;
struct sk_buff **tx_skb;
struct work_struct tx_timeout_task;
- /*
- * Former struct mv643xx_eth_priv members start here
- */
struct net_device_stats stats;
struct mv643xx_mib_counters mib_counters;
spinlock_t lock;
/* Size of Tx Ring per queue */
- unsigned int tx_ring_size;
- /* Ammont of SKBs outstanding on Tx queue */
- unsigned int tx_ring_skbs;
+ int tx_ring_size;
+ /* Number of tx descriptors in use */
+ int tx_desc_count;
/* Size of Rx Ring per queue */
- unsigned int rx_ring_size;
- /* Ammount of SKBs allocated to Rx Ring per queue */
- unsigned int rx_ring_skbs;
-
- /*
- * rx_task used to fill RX ring out of bottom half context
- */
- struct work_struct rx_task;
+ int rx_ring_size;
+ /* Number of rx descriptors in use */
+ int rx_desc_count;
/*
* Used in case RX Ring is empty, which can be caused when
* system does not have resources (skb's)
*/
struct timer_list timeout;
- long rx_task_busy __attribute__ ((aligned(SMP_CACHE_BYTES)));
- unsigned rx_timer_flag;
u32 rx_int_coal;
u32 tx_int_coal;
+ struct mii_if_info mii;
};
-/* ethernet.h API list */
-
/* Port operation control routines */
static void eth_port_init(struct mv643xx_private *mp);
static void eth_port_reset(unsigned int eth_port_num);
-static void eth_port_start(struct mv643xx_private *mp);
+static void eth_port_start(struct net_device *dev);
/* Port MAC address routines */
static void eth_port_uc_addr_set(unsigned int eth_port_num,
static void eth_clear_mib_counters(unsigned int eth_port_num);
/* Port data flow control routines */
-static ETH_FUNC_RET_STATUS eth_port_send(struct mv643xx_private *mp,
- struct pkt_info *p_pkt_info);
-static ETH_FUNC_RET_STATUS eth_tx_return_desc(struct mv643xx_private *mp,
- struct pkt_info *p_pkt_info);
static ETH_FUNC_RET_STATUS eth_port_receive(struct mv643xx_private *mp,
struct pkt_info *p_pkt_info);
static ETH_FUNC_RET_STATUS eth_rx_return_buff(struct mv643xx_private *mp,
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