mpc83xx: add QE ethernet support

this patch adds support for the QUICC Engine based UCC gigabit ethernet device.

1 files changed, 716 insertions, 0 deletions

diff --git a/drivers/qe/uec.h b/drivers/qe/uec.h
new file mode 100644
index 0000000..0495026
--- /dev/null
+++ b/drivers/qe/uec.h
@@ -0,0 +1,716 @@
+/*
+ * Copyright (C) 2006 Freescale Semiconductor, Inc.
+ *
+ * Dave Liu <daveliu@freescale.com>
+ * based on source code of Shlomi Gridish
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __UEC_H__
+#define __UEC_H__
+
+#define MAX_TX_THREADS				8
+#define MAX_RX_THREADS				8
+#define MAX_TX_QUEUES				8
+#define MAX_RX_QUEUES				8
+#define MAX_PREFETCHED_BDS			4
+#define MAX_IPH_OFFSET_ENTRY			8
+#define MAX_ENET_INIT_PARAM_ENTRIES_RX		9
+#define MAX_ENET_INIT_PARAM_ENTRIES_TX		8
+
+/* UEC UPSMR (Protocol Specific Mode Register)
+ */
+#define UPSMR_ECM	0x04000000 /* Enable CAM Miss               */
+#define UPSMR_HSE	0x02000000 /* Hardware Statistics Enable    */
+#define UPSMR_PRO	0x00400000 /* Promiscuous                   */
+#define UPSMR_CAP	0x00200000 /* CAM polarity                  */
+#define UPSMR_RSH	0x00100000 /* Receive Short Frames          */
+#define UPSMR_RPM	0x00080000 /* Reduced Pin Mode interfaces   */
+#define UPSMR_R10M	0x00040000 /* RGMII/RMII 10 Mode            */
+#define UPSMR_RLPB	0x00020000 /* RMII Loopback Mode            */
+#define UPSMR_TBIM	0x00010000 /* Ten-bit Interface Mode        */
+#define UPSMR_RMM	0x00001000 /* RMII/RGMII Mode               */
+#define UPSMR_CAM	0x00000400 /* CAM Address Matching          */
+#define UPSMR_BRO	0x00000200 /* Broadcast Address             */
+#define UPSMR_RES1	0x00002000 /* Reserved feild - must be 1    */
+
+#define UPSMR_INIT_VALUE	(UPSMR_HSE | UPSMR_RES1)
+
+/* UEC MACCFG1 (MAC Configuration 1 Register)
+ */
+#define MACCFG1_FLOW_RX			0x00000020 /* Flow Control Rx */
+#define MACCFG1_FLOW_TX			0x00000010 /* Flow Control Tx */
+#define MACCFG1_ENABLE_SYNCHED_RX	0x00000008 /* Enable Rx Sync  */
+#define MACCFG1_ENABLE_RX		0x00000004 /* Enable Rx       */
+#define MACCFG1_ENABLE_SYNCHED_TX	0x00000002 /* Enable Tx Sync  */
+#define MACCFG1_ENABLE_TX		0x00000001 /* Enable Tx       */
+
+#define MACCFG1_INIT_VALUE		(0)
+
+/* UEC MACCFG2 (MAC Configuration 2 Register)
+ */
+#define MACCFG2_PREL				0x00007000
+#define MACCFG2_PREL_SHIFT			(31 - 19)
+#define MACCFG2_PREL_MASK			0x0000f000
+#define MACCFG2_SRP				0x00000080
+#define MACCFG2_STP				0x00000040
+#define MACCFG2_RESERVED_1			0x00000020 /* must be set  */
+#define MACCFG2_LC				0x00000010 /* Length Check */
+#define MACCFG2_MPE				0x00000008
+#define MACCFG2_FDX				0x00000001 /* Full Duplex  */
+#define MACCFG2_FDX_MASK			0x00000001
+#define MACCFG2_PAD_CRC				0x00000004
+#define MACCFG2_CRC_EN				0x00000002
+#define MACCFG2_PAD_AND_CRC_MODE_NONE		0x00000000
+#define MACCFG2_PAD_AND_CRC_MODE_CRC_ONLY	0x00000002
+#define MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC	0x00000004
+#define MACCFG2_INTERFACE_MODE_NIBBLE		0x00000100
+#define MACCFG2_INTERFACE_MODE_BYTE		0x00000200
+#define MACCFG2_INTERFACE_MODE_MASK		0x00000300
+
+#define MACCFG2_INIT_VALUE	(MACCFG2_PREL | MACCFG2_RESERVED_1 | \
+				 MACCFG2_LC | MACCFG2_PAD_CRC | MACCFG2_FDX)
+
+/* UEC Event Register
+*/
+#define UCCE_MPD				0x80000000
+#define UCCE_SCAR				0x40000000
+#define UCCE_GRA				0x20000000
+#define UCCE_CBPR				0x10000000
+#define UCCE_BSY				0x08000000
+#define UCCE_RXC				0x04000000
+#define UCCE_TXC				0x02000000
+#define UCCE_TXE				0x01000000
+#define UCCE_TXB7				0x00800000
+#define UCCE_TXB6				0x00400000
+#define UCCE_TXB5				0x00200000
+#define UCCE_TXB4				0x00100000
+#define UCCE_TXB3				0x00080000
+#define UCCE_TXB2				0x00040000
+#define UCCE_TXB1				0x00020000
+#define UCCE_TXB0				0x00010000
+#define UCCE_RXB7				0x00008000
+#define UCCE_RXB6				0x00004000
+#define UCCE_RXB5				0x00002000
+#define UCCE_RXB4				0x00001000
+#define UCCE_RXB3				0x00000800
+#define UCCE_RXB2				0x00000400
+#define UCCE_RXB1				0x00000200
+#define UCCE_RXB0				0x00000100
+#define UCCE_RXF7				0x00000080
+#define UCCE_RXF6				0x00000040
+#define UCCE_RXF5				0x00000020
+#define UCCE_RXF4				0x00000010
+#define UCCE_RXF3				0x00000008
+#define UCCE_RXF2				0x00000004
+#define UCCE_RXF1				0x00000002
+#define UCCE_RXF0				0x00000001
+
+#define UCCE_TXB	(UCCE_TXB7 | UCCE_TXB6 | UCCE_TXB5 | UCCE_TXB4 | \
+			 UCCE_TXB3 | UCCE_TXB2 | UCCE_TXB1 | UCCE_TXB0)
+#define UCCE_RXB	(UCCE_RXB7 | UCCE_RXB6 | UCCE_RXB5 | UCCE_RXB4 | \
+			 UCCE_RXB3 | UCCE_RXB2 | UCCE_RXB1 | UCCE_RXB0)
+#define UCCE_RXF	(UCCE_RXF7 | UCCE_RXF6 | UCCE_RXF5 | UCCE_RXF4 | \
+			 UCCE_RXF3 | UCCE_RXF2 | UCCE_RXF1 | UCCE_RXF0)
+#define UCCE_OTHER	(UCCE_SCAR | UCCE_GRA  | UCCE_CBPR | UCCE_BSY  | \
+			 UCCE_RXC  | UCCE_TXC  | UCCE_TXE)
+
+/* UEC TEMODR Register
+*/
+#define TEMODER_SCHEDULER_ENABLE		0x2000
+#define TEMODER_IP_CHECKSUM_GENERATE		0x0400
+#define TEMODER_PERFORMANCE_OPTIMIZATION_MODE1	0x0200
+#define TEMODER_RMON_STATISTICS			0x0100
+#define TEMODER_NUM_OF_QUEUES_SHIFT		(15-15)
+
+#define TEMODER_INIT_VALUE			0xc000
+
+/* UEC REMODR Register
+*/
+#define REMODER_RX_RMON_STATISTICS_ENABLE	0x00001000
+#define REMODER_RX_EXTENDED_FEATURES		0x80000000
+#define REMODER_VLAN_OPERATION_TAGGED_SHIFT	(31-9 )
+#define REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT	(31-10)
+#define REMODER_RX_QOS_MODE_SHIFT		(31-15)
+#define REMODER_RMON_STATISTICS			0x00001000
+#define REMODER_RX_EXTENDED_FILTERING		0x00000800
+#define REMODER_NUM_OF_QUEUES_SHIFT		(31-23)
+#define REMODER_DYNAMIC_MAX_FRAME_LENGTH	0x00000008
+#define REMODER_DYNAMIC_MIN_FRAME_LENGTH	0x00000004
+#define REMODER_IP_CHECKSUM_CHECK		0x00000002
+#define REMODER_IP_ADDRESS_ALIGNMENT		0x00000001
+
+#define REMODER_INIT_VALUE			0
+
+/* BMRx - Bus Mode Register */
+#define BMR_GLB					0x20
+#define BMR_BO_BE				0x10
+#define BMR_DTB_SECONDARY_BUS			0x02
+#define BMR_BDB_SECONDARY_BUS			0x01
+
+#define BMR_SHIFT				24
+#define BMR_INIT_VALUE				(BMR_GLB | BMR_BO_BE)
+
+/* UEC UCCS (Ethernet Status Register)
+ */
+#define UCCS_BPR				0x02
+#define UCCS_PAU				0x02
+#define UCCS_MPD				0x01
+
+/* UEC MIIMCFG (MII Management Configuration Register)
+ */
+#define MIIMCFG_RESET_MANAGEMENT		0x80000000
+#define MIIMCFG_NO_PREAMBLE			0x00000010
+#define MIIMCFG_CLOCK_DIVIDE_SHIFT		(31 - 31)
+#define MIIMCFG_CLOCK_DIVIDE_MASK		0x0000000f
+#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_4	0x00000001
+#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_6	0x00000002
+#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_8	0x00000003
+#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_10	0x00000004
+#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_14	0x00000005
+#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_20	0x00000006
+#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_28	0x00000007
+
+#define MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE	\
+	MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_10
+
+/* UEC MIIMCOM (MII Management Command Register)
+ */
+#define MIIMCOM_SCAN_CYCLE			0x00000002 /* Scan cycle */
+#define MIIMCOM_READ_CYCLE			0x00000001 /* Read cycle */
+
+/* UEC MIIMADD (MII Management Address Register)
+ */
+#define MIIMADD_PHY_ADDRESS_SHIFT		(31 - 23)
+#define MIIMADD_PHY_REGISTER_SHIFT		(31 - 31)
+
+/* UEC MIIMCON (MII Management Control Register)
+ */
+#define MIIMCON_PHY_CONTROL_SHIFT		(31 - 31)
+#define MIIMCON_PHY_STATUS_SHIFT		(31 - 31)
+
+/* UEC MIIMIND (MII Management Indicator Register)
+ */
+#define MIIMIND_NOT_VALID			0x00000004
+#define MIIMIND_SCAN				0x00000002
+#define MIIMIND_BUSY				0x00000001
+
+/* UEC UTBIPAR (Ten Bit Interface Physical Address Register)
+ */
+#define UTBIPAR_PHY_ADDRESS_SHIFT		(31 - 31)
+#define UTBIPAR_PHY_ADDRESS_MASK		0x0000001f
+
+/* UEC UESCR (Ethernet Statistics Control Register)
+ */
+#define UESCR_AUTOZ				0x8000
+#define UESCR_CLRCNT				0x4000
+#define UESCR_MAXCOV_SHIFT			(15 -  7)
+#define UESCR_SCOV_SHIFT			(15 - 15)
+
+/****** Tx data struct collection ******/
+/* Tx thread data, each Tx thread has one this struct.
+*/
+typedef struct uec_thread_data_tx {
+	u8   res0[136];
+} __attribute__ ((packed)) uec_thread_data_tx_t;
+
+/* Tx thread parameter, each Tx thread has one this struct.
+*/
+typedef struct uec_thread_tx_pram {
+	u8   res0[64];
+} __attribute__ ((packed)) uec_thread_tx_pram_t;
+
+/* Send queue queue-descriptor, each Tx queue has one this QD
+*/
+typedef struct uec_send_queue_qd {
+	u32    bd_ring_base; /* pointer to BD ring base address */
+	u8     res0[0x8];
+	u32    last_bd_completed_address; /* last entry in BD ring */
+	u8     res1[0x30];
+} __attribute__ ((packed)) uec_send_queue_qd_t;
+
+/* Send queue memory region */
+typedef struct uec_send_queue_mem_region {
+	uec_send_queue_qd_t   sqqd[MAX_TX_QUEUES];
+} __attribute__ ((packed)) uec_send_queue_mem_region_t;
+
+/* Scheduler struct
+*/
+typedef struct uec_scheduler {
+	u16  cpucount0;        /* CPU packet counter */
+	u16  cpucount1;        /* CPU packet counter */
+	u16  cecount0;         /* QE  packet counter */
+	u16  cecount1;         /* QE  packet counter */
+	u16  cpucount2;        /* CPU packet counter */
+	u16  cpucount3;        /* CPU packet counter */
+	u16  cecount2;         /* QE  packet counter */
+	u16  cecount3;         /* QE  packet counter */
+	u16  cpucount4;        /* CPU packet counter */
+	u16  cpucount5;        /* CPU packet counter */
+	u16  cecount4;         /* QE  packet counter */
+	u16  cecount5;         /* QE  packet counter */
+	u16  cpucount6;        /* CPU packet counter */
+	u16  cpucount7;        /* CPU packet counter */
+	u16  cecount6;         /* QE  packet counter */
+	u16  cecount7;         /* QE  packet counter */
+	u32  weightstatus[MAX_TX_QUEUES]; /* accumulated weight factor */
+	u32  rtsrshadow;       /* temporary variable handled by QE */
+	u32  time;             /* temporary variable handled by QE */
+	u32  ttl;              /* temporary variable handled by QE */
+	u32  mblinterval;      /* max burst length interval        */
+	u16  nortsrbytetime;   /* normalized value of byte time in tsr units */
+	u8   fracsiz;
+	u8   res0[1];
+	u8   strictpriorityq;  /* Strict Priority Mask register */
+	u8   txasap;           /* Transmit ASAP register        */
+	u8   extrabw;          /* Extra BandWidth register      */
+	u8   oldwfqmask;       /* temporary variable handled by QE */
+	u8   weightfactor[MAX_TX_QUEUES]; /**< weight factor for queues */
+	u32  minw;             /* temporary variable handled by QE */
+	u8   res1[0x70-0x64];
+} __attribute__ ((packed)) uec_scheduler_t;
+
+/* Tx firmware counters
+*/
+typedef struct uec_tx_firmware_statistics_pram {
+	u32  sicoltx;            /* single collision */
+	u32  mulcoltx;           /* multiple collision */
+	u32  latecoltxfr;        /* late collision */
+	u32  frabortduecol;      /* frames aborted due to tx collision */
+	u32  frlostinmactxer;    /* frames lost due to internal MAC error tx */
+	u32  carriersenseertx;   /* carrier sense error */
+	u32  frtxok;             /* frames transmitted OK */
+	u32  txfrexcessivedefer;
+	u32  txpkts256;          /* total packets(including bad) 256~511 B */
+	u32  txpkts512;          /* total packets(including bad) 512~1023B */
+	u32  txpkts1024;         /* total packets(including bad) 1024~1518B */
+	u32  txpktsjumbo;        /* total packets(including bad)  >1024 */
+} __attribute__ ((packed)) uec_tx_firmware_statistics_pram_t;
+
+/* Tx global parameter table
+*/
+typedef struct uec_tx_global_pram {
+	u16  temoder;
+	u8   res0[0x38-0x02];
+	u32  sqptr;
+	u32  schedulerbasepointer;
+	u32  txrmonbaseptr;
+	u32  tstate;
+	u8   iphoffset[MAX_IPH_OFFSET_ENTRY];
+	u32  vtagtable[0x8];
+	u32  tqptr;
+	u8   res2[0x80-0x74];
+} __attribute__ ((packed)) uec_tx_global_pram_t;
+
+
+/****** Rx data struct collection ******/
+/* Rx thread data, each Rx thread has one this struct.
+*/
+typedef struct uec_thread_data_rx {
+	u8   res0[40];
+} __attribute__ ((packed)) uec_thread_data_rx_t;
+
+/* Rx thread parameter, each Rx thread has one this struct.
+*/
+typedef struct uec_thread_rx_pram {
+	u8   res0[128];
+} __attribute__ ((packed)) uec_thread_rx_pram_t;
+
+/* Rx firmware counters
+*/
+typedef struct uec_rx_firmware_statistics_pram {
+	u32   frrxfcser;         /* frames with crc error */
+	u32   fraligner;         /* frames with alignment error */
+	u32   inrangelenrxer;    /* in range length error */
+	u32   outrangelenrxer;   /* out of range length error */
+	u32   frtoolong;         /* frame too long */
+	u32   runt;              /* runt */
+	u32   verylongevent;     /* very long event */
+	u32   symbolerror;       /* symbol error */
+	u32   dropbsy;           /* drop because of BD not ready */
+	u8    res0[0x8];
+	u32   mismatchdrop;      /* drop because of MAC filtering */
+	u32   underpkts;         /* total frames less than 64 octets */
+	u32   pkts256;           /* total frames(including bad)256~511 B */
+	u32   pkts512;           /* total frames(including bad)512~1023 B */
+	u32   pkts1024;          /* total frames(including bad)1024~1518 B */
+	u32   pktsjumbo;         /* total frames(including bad) >1024 B */
+	u32   frlossinmacer;
+	u32   pausefr;           /* pause frames */
+	u8    res1[0x4];
+	u32   removevlan;
+	u32   replacevlan;
+	u32   insertvlan;
+} __attribute__ ((packed)) uec_rx_firmware_statistics_pram_t;
+
+/* Rx interrupt coalescing entry, each Rx queue has one this entry.
+*/
+typedef struct uec_rx_interrupt_coalescing_entry {
+	u32   maxvalue;
+	u32   counter;
+} __attribute__ ((packed)) uec_rx_interrupt_coalescing_entry_t;
+
+typedef struct uec_rx_interrupt_coalescing_table {
+	uec_rx_interrupt_coalescing_entry_t   entry[MAX_RX_QUEUES];
+} __attribute__ ((packed)) uec_rx_interrupt_coalescing_table_t;
+
+/* RxBD queue entry, each Rx queue has one this entry.
+*/
+typedef struct uec_rx_bd_queues_entry {
+	u32   bdbaseptr;         /* BD base pointer          */
+	u32   bdptr;             /* BD pointer               */
+	u32   externalbdbaseptr; /* external BD base pointer */
+	u32   externalbdptr;     /* external BD pointer      */
+} __attribute__ ((packed)) uec_rx_bd_queues_entry_t;
+
+/* Rx global paramter table
+*/
+typedef struct uec_rx_global_pram {
+	u32  remoder;             /* ethernet mode reg. */
+	u32  rqptr;               /* base pointer to the Rx Queues */
+	u32  res0[0x1];
+	u8   res1[0x20-0xC];
+	u16  typeorlen;
+	u8   res2[0x1];
+	u8   rxgstpack;           /* ack on GRACEFUL STOP RX command */
+	u32  rxrmonbaseptr;       /* Rx RMON statistics base */
+	u8   res3[0x30-0x28];
+	u32  intcoalescingptr;    /* Interrupt coalescing table pointer */
+	u8   res4[0x36-0x34];
+	u8   rstate;
+	u8   res5[0x46-0x37];
+	u16  mrblr;               /* max receive buffer length reg. */
+	u32  rbdqptr;             /* RxBD parameter table description */
+	u16  mflr;                /* max frame length reg. */
+	u16  minflr;              /* min frame length reg. */
+	u16  maxd1;               /* max dma1 length reg. */
+	u16  maxd2;               /* max dma2 length reg. */
+	u32  ecamptr;             /* external CAM address */
+	u32  l2qt;                /* VLAN priority mapping table. */
+	u32  l3qt[0x8];           /* IP   priority mapping table. */
+	u16  vlantype;            /* vlan type */
+	u16  vlantci;             /* default vlan tci */
+	u8   addressfiltering[64];/* address filtering data structure */
+	u32  exfGlobalParam;      /* extended filtering global parameters */
+	u8   res6[0x100-0xC4];    /* Initialize to zero */
+} __attribute__ ((packed)) uec_rx_global_pram_t;
+
+#define GRACEFUL_STOP_ACKNOWLEDGE_RX            0x01
+
+
+/****** UEC common ******/
+/* UCC statistics - hardware counters
+*/
+typedef struct uec_hardware_statistics {
+	u32 tx64;
+	u32 tx127;
+	u32 tx255;
+	u32 rx64;
+	u32 rx127;
+	u32 rx255;
+	u32 txok;
+	u16 txcf;
+	u32 tmca;
+	u32 tbca;
+	u32 rxfok;
+	u32 rxbok;
+	u32 rbyt;
+	u32 rmca;
+	u32 rbca;
+} __attribute__ ((packed)) uec_hardware_statistics_t;
+
+/* InitEnet command parameter
+*/
+typedef struct uec_init_cmd_pram {
+	u8   resinit0;
+	u8   resinit1;
+	u8   resinit2;
+	u8   resinit3;
+	u16  resinit4;
+	u8   res1[0x1];
+	u8   largestexternallookupkeysize;
+	u32  rgftgfrxglobal;
+	u32  rxthread[MAX_ENET_INIT_PARAM_ENTRIES_RX]; /* rx threads */
+	u8   res2[0x38 - 0x30];
+	u32  txglobal;				   /* tx global  */
+	u32  txthread[MAX_ENET_INIT_PARAM_ENTRIES_TX]; /* tx threads */
+	u8   res3[0x1];
+} __attribute__ ((packed)) uec_init_cmd_pram_t;
+
+#define ENET_INIT_PARAM_RGF_SHIFT		(32 - 4)
+#define ENET_INIT_PARAM_TGF_SHIFT		(32 - 8)
+
+#define ENET_INIT_PARAM_RISC_MASK		0x0000003f
+#define ENET_INIT_PARAM_PTR_MASK		0x00ffffc0
+#define ENET_INIT_PARAM_SNUM_MASK		0xff000000
+#define ENET_INIT_PARAM_SNUM_SHIFT		24
+
+#define ENET_INIT_PARAM_MAGIC_RES_INIT0		0x06
+#define ENET_INIT_PARAM_MAGIC_RES_INIT1		0x30
+#define ENET_INIT_PARAM_MAGIC_RES_INIT2		0xff
+#define ENET_INIT_PARAM_MAGIC_RES_INIT3		0x00
+#define ENET_INIT_PARAM_MAGIC_RES_INIT4		0x0400
+
+/* structure representing 82xx Address Filtering Enet Address in PRAM
+*/
+typedef struct uec_82xx_enet_address {
+	u8   res1[0x2];
+	u16  h;       /* address (MSB) */
+	u16  m;       /* address       */
+	u16  l;       /* address (LSB) */
+} __attribute__ ((packed)) uec_82xx_enet_address_t;
+
+/* structure representing 82xx Address Filtering PRAM
+*/
+typedef struct uec_82xx_address_filtering_pram {
+	u32  iaddr_h;        /* individual address filter, high */
+	u32  iaddr_l;        /* individual address filter, low  */
+	u32  gaddr_h;        /* group address filter, high      */
+	u32  gaddr_l;        /* group address filter, low       */
+	uec_82xx_enet_address_t    taddr;
+	uec_82xx_enet_address_t    paddr[4];
+	u8                         res0[0x40-0x38];
+} __attribute__ ((packed)) uec_82xx_address_filtering_pram_t;
+
+/* Buffer Descriptor
+*/
+typedef struct buffer_descriptor {
+	u16 status;
+	u16 len;
+	u32 data;
+} __attribute__ ((packed)) qe_bd_t, *p_bd_t;
+
+#define	SIZEOFBD		sizeof(qe_bd_t)
+
+/* Common BD flags
+*/
+#define BD_WRAP			0x2000
+#define BD_INT			0x1000
+#define BD_LAST			0x0800
+#define BD_CLEAN		0x3000
+
+/* TxBD status flags
+*/
+#define TxBD_READY		0x8000
+#define TxBD_PADCRC		0x4000
+#define TxBD_WRAP		BD_WRAP
+#define TxBD_INT		BD_INT
+#define TxBD_LAST		BD_LAST
+#define TxBD_TXCRC		0x0400
+#define TxBD_DEF		0x0200
+#define TxBD_PP			0x0100
+#define TxBD_LC			0x0080
+#define TxBD_RL			0x0040
+#define TxBD_RC			0x003C
+#define TxBD_UNDERRUN		0x0002
+#define TxBD_TRUNC		0x0001
+
+#define TxBD_ERROR		(TxBD_UNDERRUN | TxBD_TRUNC)
+
+/* RxBD status flags
+*/
+#define RxBD_EMPTY		0x8000
+#define RxBD_OWNER		0x4000
+#define RxBD_WRAP		BD_WRAP
+#define RxBD_INT		BD_INT
+#define RxBD_LAST		BD_LAST
+#define RxBD_FIRST		0x0400
+#define RxBD_CMR		0x0200
+#define RxBD_MISS		0x0100
+#define RxBD_BCAST		0x0080
+#define RxBD_MCAST		0x0040
+#define RxBD_LG			0x0020
+#define RxBD_NO			0x0010
+#define RxBD_SHORT		0x0008
+#define RxBD_CRCERR		0x0004
+#define RxBD_OVERRUN		0x0002
+#define RxBD_IPCH		0x0001
+
+#define RxBD_ERROR		(RxBD_LG | RxBD_NO | RxBD_SHORT | \
+				 RxBD_CRCERR | RxBD_OVERRUN)
+
+/* BD access macros
+*/
+#define BD_STATUS(_bd)			(((p_bd_t)(_bd))->status)
+#define BD_STATUS_SET(_bd, _val)	(((p_bd_t)(_bd))->status = _val)
+#define BD_LENGTH(_bd)			(((p_bd_t)(_bd))->len)
+#define BD_LENGTH_SET(_bd, _val)	(((p_bd_t)(_bd))->len = _val)
+#define BD_DATA_CLEAR(_bd)		(((p_bd_t)(_bd))->data = 0)
+#define BD_IS_DATA(_bd)			(((p_bd_t)(_bd))->data)
+#define BD_DATA(_bd)			((u8 *)(((p_bd_t)(_bd))->data))
+#define BD_DATA_SET(_bd, _data)		(((p_bd_t)(_bd))->data = (u32)(_data))
+#define BD_ADVANCE(_bd,_status,_base)	\
+	(((_status) & BD_WRAP) ? (_bd) = ((p_bd_t)(_base)) : ++(_bd))
+
+/* Rx Prefetched BDs
+*/
+typedef struct uec_rx_prefetched_bds {
+    qe_bd_t   bd[MAX_PREFETCHED_BDS]; /* prefetched bd */
+} __attribute__ ((packed)) uec_rx_prefetched_bds_t;
+
+/* Alignments
+ */
+#define UEC_RX_GLOBAL_PRAM_ALIGNMENT				64
+#define UEC_TX_GLOBAL_PRAM_ALIGNMENT				64
+#define UEC_THREAD_RX_PRAM_ALIGNMENT				128
+#define UEC_THREAD_TX_PRAM_ALIGNMENT				64
+#define UEC_THREAD_DATA_ALIGNMENT				256
+#define UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT		32
+#define UEC_SCHEDULER_ALIGNMENT					4
+#define UEC_TX_STATISTICS_ALIGNMENT				4
+#define UEC_RX_STATISTICS_ALIGNMENT				4
+#define UEC_RX_INTERRUPT_COALESCING_ALIGNMENT			4
+#define UEC_RX_BD_QUEUES_ALIGNMENT				8
+#define UEC_RX_PREFETCHED_BDS_ALIGNMENT				128
+#define UEC_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT	4
+#define UEC_RX_BD_RING_ALIGNMENT				32
+#define UEC_TX_BD_RING_ALIGNMENT				32
+#define UEC_MRBLR_ALIGNMENT					128
+#define UEC_RX_BD_RING_SIZE_ALIGNMENT				4
+#define UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT			32
+#define UEC_RX_DATA_BUF_ALIGNMENT				64
+
+#define UEC_VLAN_PRIORITY_MAX					8
+#define UEC_IP_PRIORITY_MAX					64
+#define UEC_TX_VTAG_TABLE_ENTRY_MAX				8
+#define UEC_RX_BD_RING_SIZE_MIN					8
+#define UEC_TX_BD_RING_SIZE_MIN					2
+
+/* Ethernet speed
+*/
+typedef enum enet_speed {
+	ENET_SPEED_10BT,   /* 10 Base T */
+	ENET_SPEED_100BT,  /* 100 Base T */
+	ENET_SPEED_1000BT  /* 1000 Base T */
+} enet_speed_e;
+
+/* Ethernet Address Type.
+*/
+typedef enum enet_addr_type {
+	ENET_ADDR_TYPE_INDIVIDUAL,
+	ENET_ADDR_TYPE_GROUP,
+	ENET_ADDR_TYPE_BROADCAST
+} enet_addr_type_e;
+
+/* TBI / MII Set Register
+*/
+typedef enum enet_tbi_mii_reg {
+	ENET_TBI_MII_CR        = 0x00,
+	ENET_TBI_MII_SR        = 0x01,
+	ENET_TBI_MII_ANA       = 0x04,
+	ENET_TBI_MII_ANLPBPA   = 0x05,
+	ENET_TBI_MII_ANEX      = 0x06,
+	ENET_TBI_MII_ANNPT     = 0x07,
+	ENET_TBI_MII_ANLPANP   = 0x08,
+	ENET_TBI_MII_EXST      = 0x0F,
+	ENET_TBI_MII_JD        = 0x10,
+	ENET_TBI_MII_TBICON    = 0x11
+} enet_tbi_mii_reg_e;
+
+/* UEC number of threads
+*/
+typedef enum uec_num_of_threads {
+	UEC_NUM_OF_THREADS_1  = 0x1,  /* 1 */
+	UEC_NUM_OF_THREADS_2  = 0x2,  /* 2 */
+	UEC_NUM_OF_THREADS_4  = 0x0,  /* 4 */
+	UEC_NUM_OF_THREADS_6  = 0x3,  /* 6 */
+	UEC_NUM_OF_THREADS_8  = 0x4   /* 8 */
+} uec_num_of_threads_e;
+
+/* UEC ethernet interface type
+*/
+typedef enum enet_interface {
+	ENET_10_MII,
+	ENET_10_RMII,
+	ENET_10_RGMII,
+	ENET_100_MII,
+	ENET_100_RMII,
+	ENET_100_RGMII,
+	ENET_1000_GMII,
+	ENET_1000_RGMII,
+	ENET_1000_TBI,
+	ENET_1000_RTBI
+} enet_interface_e;
+
+/* UEC initialization info struct
+*/
+typedef struct uec_info {
+	ucc_fast_info_t			uf_info;
+	uec_num_of_threads_e		num_threads_tx;
+	uec_num_of_threads_e		num_threads_rx;
+	qe_risc_allocation_e		riscTx;
+	qe_risc_allocation_e		riscRx;
+	u16				rx_bd_ring_len;
+	u16				tx_bd_ring_len;
+	u8				phy_address;
+	enet_interface_e		enet_interface;
+} uec_info_t;
+
+/* UEC driver initialized info
+*/
+#define MAX_RXBUF_LEN			1536
+#define MAX_FRAME_LEN			1518
+#define MIN_FRAME_LEN			64
+#define MAX_DMA1_LEN			1520
+#define MAX_DMA2_LEN			1520
+
+/* UEC driver private struct
+*/
+typedef struct uec_private {
+	uec_info_t			*uec_info;
+	ucc_fast_private_t		*uccf;
+	struct eth_device		*dev;
+	uec_t				*uec_regs;
+	/* enet init command parameter */
+	uec_init_cmd_pram_t		*p_init_enet_param;
+	u32				init_enet_param_offset;
+	/* Rx and Tx paramter */
+	uec_rx_global_pram_t		*p_rx_glbl_pram;
+	u32				rx_glbl_pram_offset;
+	uec_tx_global_pram_t		*p_tx_glbl_pram;
+	u32				tx_glbl_pram_offset;
+	uec_send_queue_mem_region_t	*p_send_q_mem_reg;
+	u32				send_q_mem_reg_offset;
+	uec_thread_data_tx_t		*p_thread_data_tx;
+	u32				thread_dat_tx_offset;
+	uec_thread_data_rx_t		*p_thread_data_rx;
+	u32				thread_dat_rx_offset;
+	uec_rx_bd_queues_entry_t	*p_rx_bd_qs_tbl;
+	u32				rx_bd_qs_tbl_offset;
+	/* BDs specific */
+	u8				*p_tx_bd_ring;
+	u32				tx_bd_ring_offset;
+	u8				*p_rx_bd_ring;
+	u32				rx_bd_ring_offset;
+	u8				*p_rx_buf;
+	u32				rx_buf_offset;
+	volatile qe_bd_t		*txBd;
+	volatile qe_bd_t		*rxBd;
+	/* Status */
+	int				mac_tx_enabled;
+	int				mac_rx_enabled;
+	int				grace_stopped_tx;
+	int				grace_stopped_rx;
+	int				the_first_run;
+	/* PHY specific */
+	struct uec_mii_info 		*mii_info;
+	int				oldspeed;
+	int				oldduplex;
+	int				oldlink;
+} uec_private_t;
+
+#endif /* __UEC_H__ */