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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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421d9df062
macb and at91_ether drivers can be compiled as modules, but the at91_ether driver use some functions and variables defined in the macb one, thus creating a dependency on the macb driver. Since these drivers are sharing the same logic we can easily merge at91_ether into macb. In order to factorize common probing logic we've added an ->init() function to struct macb_config (the structure associated with the compatible string), and moved macb specific init code from macb_probe to macb_init. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Tested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
834 lines
28 KiB
C
834 lines
28 KiB
C
/*
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* Atmel MACB Ethernet Controller driver
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*
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* Copyright (C) 2004-2006 Atmel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _MACB_H
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#define _MACB_H
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#define MACB_GREGS_NBR 16
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#define MACB_GREGS_VERSION 1
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#define MACB_MAX_QUEUES 8
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/* MACB register offsets */
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#define MACB_NCR 0x0000 /* Network Control */
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#define MACB_NCFGR 0x0004 /* Network Config */
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#define MACB_NSR 0x0008 /* Network Status */
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#define MACB_TAR 0x000c /* AT91RM9200 only */
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#define MACB_TCR 0x0010 /* AT91RM9200 only */
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#define MACB_TSR 0x0014 /* Transmit Status */
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#define MACB_RBQP 0x0018 /* RX Q Base Address */
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#define MACB_TBQP 0x001c /* TX Q Base Address */
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#define MACB_RSR 0x0020 /* Receive Status */
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#define MACB_ISR 0x0024 /* Interrupt Status */
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#define MACB_IER 0x0028 /* Interrupt Enable */
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#define MACB_IDR 0x002c /* Interrupt Disable */
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#define MACB_IMR 0x0030 /* Interrupt Mask */
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#define MACB_MAN 0x0034 /* PHY Maintenance */
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#define MACB_PTR 0x0038
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#define MACB_PFR 0x003c
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#define MACB_FTO 0x0040
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#define MACB_SCF 0x0044
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#define MACB_MCF 0x0048
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#define MACB_FRO 0x004c
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#define MACB_FCSE 0x0050
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#define MACB_ALE 0x0054
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#define MACB_DTF 0x0058
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#define MACB_LCOL 0x005c
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#define MACB_EXCOL 0x0060
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#define MACB_TUND 0x0064
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#define MACB_CSE 0x0068
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#define MACB_RRE 0x006c
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#define MACB_ROVR 0x0070
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#define MACB_RSE 0x0074
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#define MACB_ELE 0x0078
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#define MACB_RJA 0x007c
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#define MACB_USF 0x0080
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#define MACB_STE 0x0084
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#define MACB_RLE 0x0088
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#define MACB_TPF 0x008c
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#define MACB_HRB 0x0090
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#define MACB_HRT 0x0094
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#define MACB_SA1B 0x0098
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#define MACB_SA1T 0x009c
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#define MACB_SA2B 0x00a0
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#define MACB_SA2T 0x00a4
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#define MACB_SA3B 0x00a8
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#define MACB_SA3T 0x00ac
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#define MACB_SA4B 0x00b0
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#define MACB_SA4T 0x00b4
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#define MACB_TID 0x00b8
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#define MACB_TPQ 0x00bc
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#define MACB_USRIO 0x00c0
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#define MACB_WOL 0x00c4
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#define MACB_MID 0x00fc
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/* GEM register offsets. */
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#define GEM_NCFGR 0x0004 /* Network Config */
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#define GEM_USRIO 0x000c /* User IO */
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#define GEM_DMACFG 0x0010 /* DMA Configuration */
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#define GEM_HRB 0x0080 /* Hash Bottom */
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#define GEM_HRT 0x0084 /* Hash Top */
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#define GEM_SA1B 0x0088 /* Specific1 Bottom */
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#define GEM_SA1T 0x008C /* Specific1 Top */
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#define GEM_SA2B 0x0090 /* Specific2 Bottom */
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#define GEM_SA2T 0x0094 /* Specific2 Top */
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#define GEM_SA3B 0x0098 /* Specific3 Bottom */
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#define GEM_SA3T 0x009C /* Specific3 Top */
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#define GEM_SA4B 0x00A0 /* Specific4 Bottom */
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#define GEM_SA4T 0x00A4 /* Specific4 Top */
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#define GEM_OTX 0x0100 /* Octets transmitted */
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#define GEM_OCTTXL 0x0100 /* Octets transmitted [31:0] */
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#define GEM_OCTTXH 0x0104 /* Octets transmitted [47:32] */
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#define GEM_TXCNT 0x0108 /* Frames Transmitted counter */
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#define GEM_TXBCCNT 0x010c /* Broadcast Frames counter */
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#define GEM_TXMCCNT 0x0110 /* Multicast Frames counter */
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#define GEM_TXPAUSECNT 0x0114 /* Pause Frames Transmitted Counter */
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#define GEM_TX64CNT 0x0118 /* 64 byte Frames TX counter */
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#define GEM_TX65CNT 0x011c /* 65-127 byte Frames TX counter */
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#define GEM_TX128CNT 0x0120 /* 128-255 byte Frames TX counter */
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#define GEM_TX256CNT 0x0124 /* 256-511 byte Frames TX counter */
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#define GEM_TX512CNT 0x0128 /* 512-1023 byte Frames TX counter */
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#define GEM_TX1024CNT 0x012c /* 1024-1518 byte Frames TX counter */
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#define GEM_TX1519CNT 0x0130 /* 1519+ byte Frames TX counter */
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#define GEM_TXURUNCNT 0x0134 /* TX under run error counter */
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#define GEM_SNGLCOLLCNT 0x0138 /* Single Collision Frame Counter */
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#define GEM_MULTICOLLCNT 0x013c /* Multiple Collision Frame Counter */
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#define GEM_EXCESSCOLLCNT 0x0140 /* Excessive Collision Frame Counter */
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#define GEM_LATECOLLCNT 0x0144 /* Late Collision Frame Counter */
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#define GEM_TXDEFERCNT 0x0148 /* Deferred Transmission Frame Counter */
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#define GEM_TXCSENSECNT 0x014c /* Carrier Sense Error Counter */
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#define GEM_ORX 0x0150 /* Octets received */
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#define GEM_OCTRXL 0x0150 /* Octets received [31:0] */
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#define GEM_OCTRXH 0x0154 /* Octets received [47:32] */
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#define GEM_RXCNT 0x0158 /* Frames Received Counter */
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#define GEM_RXBROADCNT 0x015c /* Broadcast Frames Received Counter */
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#define GEM_RXMULTICNT 0x0160 /* Multicast Frames Received Counter */
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#define GEM_RXPAUSECNT 0x0164 /* Pause Frames Received Counter */
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#define GEM_RX64CNT 0x0168 /* 64 byte Frames RX Counter */
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#define GEM_RX65CNT 0x016c /* 65-127 byte Frames RX Counter */
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#define GEM_RX128CNT 0x0170 /* 128-255 byte Frames RX Counter */
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#define GEM_RX256CNT 0x0174 /* 256-511 byte Frames RX Counter */
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#define GEM_RX512CNT 0x0178 /* 512-1023 byte Frames RX Counter */
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#define GEM_RX1024CNT 0x017c /* 1024-1518 byte Frames RX Counter */
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#define GEM_RX1519CNT 0x0180 /* 1519+ byte Frames RX Counter */
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#define GEM_RXUNDRCNT 0x0184 /* Undersize Frames Received Counter */
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#define GEM_RXOVRCNT 0x0188 /* Oversize Frames Received Counter */
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#define GEM_RXJABCNT 0x018c /* Jabbers Received Counter */
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#define GEM_RXFCSCNT 0x0190 /* Frame Check Sequence Error Counter */
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#define GEM_RXLENGTHCNT 0x0194 /* Length Field Error Counter */
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#define GEM_RXSYMBCNT 0x0198 /* Symbol Error Counter */
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#define GEM_RXALIGNCNT 0x019c /* Alignment Error Counter */
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#define GEM_RXRESERRCNT 0x01a0 /* Receive Resource Error Counter */
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#define GEM_RXORCNT 0x01a4 /* Receive Overrun Counter */
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#define GEM_RXIPCCNT 0x01a8 /* IP header Checksum Error Counter */
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#define GEM_RXTCPCCNT 0x01ac /* TCP Checksum Error Counter */
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#define GEM_RXUDPCCNT 0x01b0 /* UDP Checksum Error Counter */
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#define GEM_DCFG1 0x0280 /* Design Config 1 */
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#define GEM_DCFG2 0x0284 /* Design Config 2 */
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#define GEM_DCFG3 0x0288 /* Design Config 3 */
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#define GEM_DCFG4 0x028c /* Design Config 4 */
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#define GEM_DCFG5 0x0290 /* Design Config 5 */
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#define GEM_DCFG6 0x0294 /* Design Config 6 */
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#define GEM_DCFG7 0x0298 /* Design Config 7 */
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#define GEM_ISR(hw_q) (0x0400 + ((hw_q) << 2))
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#define GEM_TBQP(hw_q) (0x0440 + ((hw_q) << 2))
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#define GEM_RBQP(hw_q) (0x0480 + ((hw_q) << 2))
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#define GEM_IER(hw_q) (0x0600 + ((hw_q) << 2))
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#define GEM_IDR(hw_q) (0x0620 + ((hw_q) << 2))
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#define GEM_IMR(hw_q) (0x0640 + ((hw_q) << 2))
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/* Bitfields in NCR */
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#define MACB_LB_OFFSET 0 /* reserved */
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#define MACB_LB_SIZE 1
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#define MACB_LLB_OFFSET 1 /* Loop back local */
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#define MACB_LLB_SIZE 1
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#define MACB_RE_OFFSET 2 /* Receive enable */
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#define MACB_RE_SIZE 1
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#define MACB_TE_OFFSET 3 /* Transmit enable */
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#define MACB_TE_SIZE 1
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#define MACB_MPE_OFFSET 4 /* Management port enable */
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#define MACB_MPE_SIZE 1
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#define MACB_CLRSTAT_OFFSET 5 /* Clear stats regs */
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#define MACB_CLRSTAT_SIZE 1
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#define MACB_INCSTAT_OFFSET 6 /* Incremental stats regs */
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#define MACB_INCSTAT_SIZE 1
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#define MACB_WESTAT_OFFSET 7 /* Write enable stats regs */
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#define MACB_WESTAT_SIZE 1
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#define MACB_BP_OFFSET 8 /* Back pressure */
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#define MACB_BP_SIZE 1
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#define MACB_TSTART_OFFSET 9 /* Start transmission */
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#define MACB_TSTART_SIZE 1
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#define MACB_THALT_OFFSET 10 /* Transmit halt */
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#define MACB_THALT_SIZE 1
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#define MACB_NCR_TPF_OFFSET 11 /* Transmit pause frame */
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#define MACB_NCR_TPF_SIZE 1
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#define MACB_TZQ_OFFSET 12 /* Transmit zero quantum pause frame */
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#define MACB_TZQ_SIZE 1
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/* Bitfields in NCFGR */
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#define MACB_SPD_OFFSET 0 /* Speed */
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#define MACB_SPD_SIZE 1
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#define MACB_FD_OFFSET 1 /* Full duplex */
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#define MACB_FD_SIZE 1
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#define MACB_BIT_RATE_OFFSET 2 /* Discard non-VLAN frames */
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#define MACB_BIT_RATE_SIZE 1
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#define MACB_JFRAME_OFFSET 3 /* reserved */
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#define MACB_JFRAME_SIZE 1
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#define MACB_CAF_OFFSET 4 /* Copy all frames */
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#define MACB_CAF_SIZE 1
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#define MACB_NBC_OFFSET 5 /* No broadcast */
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#define MACB_NBC_SIZE 1
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#define MACB_NCFGR_MTI_OFFSET 6 /* Multicast hash enable */
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#define MACB_NCFGR_MTI_SIZE 1
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#define MACB_UNI_OFFSET 7 /* Unicast hash enable */
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#define MACB_UNI_SIZE 1
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#define MACB_BIG_OFFSET 8 /* Receive 1536 byte frames */
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#define MACB_BIG_SIZE 1
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#define MACB_EAE_OFFSET 9 /* External address match enable */
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#define MACB_EAE_SIZE 1
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#define MACB_CLK_OFFSET 10
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#define MACB_CLK_SIZE 2
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#define MACB_RTY_OFFSET 12 /* Retry test */
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#define MACB_RTY_SIZE 1
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#define MACB_PAE_OFFSET 13 /* Pause enable */
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#define MACB_PAE_SIZE 1
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#define MACB_RM9200_RMII_OFFSET 13 /* AT91RM9200 only */
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#define MACB_RM9200_RMII_SIZE 1 /* AT91RM9200 only */
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#define MACB_RBOF_OFFSET 14 /* Receive buffer offset */
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#define MACB_RBOF_SIZE 2
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#define MACB_RLCE_OFFSET 16 /* Length field error frame discard */
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#define MACB_RLCE_SIZE 1
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#define MACB_DRFCS_OFFSET 17 /* FCS remove */
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#define MACB_DRFCS_SIZE 1
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#define MACB_EFRHD_OFFSET 18
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#define MACB_EFRHD_SIZE 1
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#define MACB_IRXFCS_OFFSET 19
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#define MACB_IRXFCS_SIZE 1
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/* GEM specific NCFGR bitfields. */
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#define GEM_GBE_OFFSET 10 /* Gigabit mode enable */
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#define GEM_GBE_SIZE 1
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#define GEM_CLK_OFFSET 18 /* MDC clock division */
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#define GEM_CLK_SIZE 3
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#define GEM_DBW_OFFSET 21 /* Data bus width */
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#define GEM_DBW_SIZE 2
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#define GEM_RXCOEN_OFFSET 24
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#define GEM_RXCOEN_SIZE 1
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/* Constants for data bus width. */
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#define GEM_DBW32 0 /* 32 bit AMBA AHB data bus width */
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#define GEM_DBW64 1 /* 64 bit AMBA AHB data bus width */
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#define GEM_DBW128 2 /* 128 bit AMBA AHB data bus width */
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/* Bitfields in DMACFG. */
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#define GEM_FBLDO_OFFSET 0 /* fixed burst length for DMA */
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#define GEM_FBLDO_SIZE 5
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#define GEM_ENDIA_DESC_OFFSET 6 /* endian swap mode for management descriptor access */
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#define GEM_ENDIA_DESC_SIZE 1
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#define GEM_ENDIA_PKT_OFFSET 7 /* endian swap mode for packet data access */
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#define GEM_ENDIA_PKT_SIZE 1
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#define GEM_RXBMS_OFFSET 8 /* RX packet buffer memory size select */
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#define GEM_RXBMS_SIZE 2
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#define GEM_TXPBMS_OFFSET 10 /* TX packet buffer memory size select */
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#define GEM_TXPBMS_SIZE 1
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#define GEM_TXCOEN_OFFSET 11 /* TX IP/TCP/UDP checksum gen offload */
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#define GEM_TXCOEN_SIZE 1
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#define GEM_RXBS_OFFSET 16 /* DMA receive buffer size */
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#define GEM_RXBS_SIZE 8
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#define GEM_DDRP_OFFSET 24 /* disc_when_no_ahb */
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#define GEM_DDRP_SIZE 1
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/* Bitfields in NSR */
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#define MACB_NSR_LINK_OFFSET 0 /* pcs_link_state */
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#define MACB_NSR_LINK_SIZE 1
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#define MACB_MDIO_OFFSET 1 /* status of the mdio_in pin */
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#define MACB_MDIO_SIZE 1
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#define MACB_IDLE_OFFSET 2 /* The PHY management logic is idle */
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#define MACB_IDLE_SIZE 1
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/* Bitfields in TSR */
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#define MACB_UBR_OFFSET 0 /* Used bit read */
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#define MACB_UBR_SIZE 1
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#define MACB_COL_OFFSET 1 /* Collision occurred */
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#define MACB_COL_SIZE 1
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#define MACB_TSR_RLE_OFFSET 2 /* Retry limit exceeded */
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#define MACB_TSR_RLE_SIZE 1
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#define MACB_TGO_OFFSET 3 /* Transmit go */
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#define MACB_TGO_SIZE 1
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#define MACB_BEX_OFFSET 4 /* TX frame corruption due to AHB error */
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#define MACB_BEX_SIZE 1
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#define MACB_RM9200_BNQ_OFFSET 4 /* AT91RM9200 only */
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#define MACB_RM9200_BNQ_SIZE 1 /* AT91RM9200 only */
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#define MACB_COMP_OFFSET 5 /* Trnasmit complete */
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#define MACB_COMP_SIZE 1
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#define MACB_UND_OFFSET 6 /* Trnasmit under run */
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#define MACB_UND_SIZE 1
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/* Bitfields in RSR */
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#define MACB_BNA_OFFSET 0 /* Buffer not available */
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#define MACB_BNA_SIZE 1
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#define MACB_REC_OFFSET 1 /* Frame received */
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#define MACB_REC_SIZE 1
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#define MACB_OVR_OFFSET 2 /* Receive overrun */
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#define MACB_OVR_SIZE 1
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/* Bitfields in ISR/IER/IDR/IMR */
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#define MACB_MFD_OFFSET 0 /* Management frame sent */
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#define MACB_MFD_SIZE 1
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#define MACB_RCOMP_OFFSET 1 /* Receive complete */
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#define MACB_RCOMP_SIZE 1
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#define MACB_RXUBR_OFFSET 2 /* RX used bit read */
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#define MACB_RXUBR_SIZE 1
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#define MACB_TXUBR_OFFSET 3 /* TX used bit read */
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#define MACB_TXUBR_SIZE 1
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#define MACB_ISR_TUND_OFFSET 4 /* Enable TX buffer under run interrupt */
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#define MACB_ISR_TUND_SIZE 1
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#define MACB_ISR_RLE_OFFSET 5 /* EN retry exceeded/late coll interrupt */
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#define MACB_ISR_RLE_SIZE 1
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#define MACB_TXERR_OFFSET 6 /* EN TX frame corrupt from error interrupt */
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#define MACB_TXERR_SIZE 1
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#define MACB_TCOMP_OFFSET 7 /* Enable transmit complete interrupt */
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#define MACB_TCOMP_SIZE 1
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#define MACB_ISR_LINK_OFFSET 9 /* Enable link change interrupt */
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#define MACB_ISR_LINK_SIZE 1
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#define MACB_ISR_ROVR_OFFSET 10 /* Enable receive overrun interrupt */
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#define MACB_ISR_ROVR_SIZE 1
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#define MACB_HRESP_OFFSET 11 /* Enable hrsep not OK interrupt */
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#define MACB_HRESP_SIZE 1
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#define MACB_PFR_OFFSET 12 /* Enable pause frame w/ quantum interrupt */
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#define MACB_PFR_SIZE 1
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#define MACB_PTZ_OFFSET 13 /* Enable pause time zero interrupt */
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#define MACB_PTZ_SIZE 1
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/* Bitfields in MAN */
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#define MACB_DATA_OFFSET 0 /* data */
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#define MACB_DATA_SIZE 16
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#define MACB_CODE_OFFSET 16 /* Must be written to 10 */
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#define MACB_CODE_SIZE 2
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#define MACB_REGA_OFFSET 18 /* Register address */
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#define MACB_REGA_SIZE 5
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#define MACB_PHYA_OFFSET 23 /* PHY address */
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#define MACB_PHYA_SIZE 5
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#define MACB_RW_OFFSET 28 /* Operation. 10 is read. 01 is write. */
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#define MACB_RW_SIZE 2
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#define MACB_SOF_OFFSET 30 /* Must be written to 1 for Clause 22 */
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#define MACB_SOF_SIZE 2
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/* Bitfields in USRIO (AVR32) */
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#define MACB_MII_OFFSET 0
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#define MACB_MII_SIZE 1
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#define MACB_EAM_OFFSET 1
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#define MACB_EAM_SIZE 1
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#define MACB_TX_PAUSE_OFFSET 2
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#define MACB_TX_PAUSE_SIZE 1
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#define MACB_TX_PAUSE_ZERO_OFFSET 3
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#define MACB_TX_PAUSE_ZERO_SIZE 1
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/* Bitfields in USRIO (AT91) */
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#define MACB_RMII_OFFSET 0
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#define MACB_RMII_SIZE 1
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#define GEM_RGMII_OFFSET 0 /* GEM gigabit mode */
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#define GEM_RGMII_SIZE 1
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#define MACB_CLKEN_OFFSET 1
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#define MACB_CLKEN_SIZE 1
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/* Bitfields in WOL */
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#define MACB_IP_OFFSET 0
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#define MACB_IP_SIZE 16
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#define MACB_MAG_OFFSET 16
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#define MACB_MAG_SIZE 1
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#define MACB_ARP_OFFSET 17
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#define MACB_ARP_SIZE 1
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#define MACB_SA1_OFFSET 18
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#define MACB_SA1_SIZE 1
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#define MACB_WOL_MTI_OFFSET 19
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#define MACB_WOL_MTI_SIZE 1
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/* Bitfields in MID */
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#define MACB_IDNUM_OFFSET 16
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#define MACB_IDNUM_SIZE 16
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#define MACB_REV_OFFSET 0
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#define MACB_REV_SIZE 16
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/* Bitfields in DCFG1. */
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#define GEM_IRQCOR_OFFSET 23
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#define GEM_IRQCOR_SIZE 1
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#define GEM_DBWDEF_OFFSET 25
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#define GEM_DBWDEF_SIZE 3
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/* Bitfields in DCFG2. */
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#define GEM_RX_PKT_BUFF_OFFSET 20
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#define GEM_RX_PKT_BUFF_SIZE 1
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#define GEM_TX_PKT_BUFF_OFFSET 21
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#define GEM_TX_PKT_BUFF_SIZE 1
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/* Constants for CLK */
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#define MACB_CLK_DIV8 0
|
|
#define MACB_CLK_DIV16 1
|
|
#define MACB_CLK_DIV32 2
|
|
#define MACB_CLK_DIV64 3
|
|
|
|
/* GEM specific constants for CLK. */
|
|
#define GEM_CLK_DIV8 0
|
|
#define GEM_CLK_DIV16 1
|
|
#define GEM_CLK_DIV32 2
|
|
#define GEM_CLK_DIV48 3
|
|
#define GEM_CLK_DIV64 4
|
|
#define GEM_CLK_DIV96 5
|
|
|
|
/* Constants for MAN register */
|
|
#define MACB_MAN_SOF 1
|
|
#define MACB_MAN_WRITE 1
|
|
#define MACB_MAN_READ 2
|
|
#define MACB_MAN_CODE 2
|
|
|
|
/* Capability mask bits */
|
|
#define MACB_CAPS_ISR_CLEAR_ON_WRITE 0x00000001
|
|
#define MACB_CAPS_USRIO_HAS_CLKEN 0x00000002
|
|
#define MACB_CAPS_USRIO_DEFAULT_IS_MII 0x00000004
|
|
#define MACB_CAPS_FIFO_MODE 0x10000000
|
|
#define MACB_CAPS_GIGABIT_MODE_AVAILABLE 0x20000000
|
|
#define MACB_CAPS_SG_DISABLED 0x40000000
|
|
#define MACB_CAPS_MACB_IS_GEM 0x80000000
|
|
|
|
/* Bit manipulation macros */
|
|
#define MACB_BIT(name) \
|
|
(1 << MACB_##name##_OFFSET)
|
|
#define MACB_BF(name,value) \
|
|
(((value) & ((1 << MACB_##name##_SIZE) - 1)) \
|
|
<< MACB_##name##_OFFSET)
|
|
#define MACB_BFEXT(name,value)\
|
|
(((value) >> MACB_##name##_OFFSET) \
|
|
& ((1 << MACB_##name##_SIZE) - 1))
|
|
#define MACB_BFINS(name,value,old) \
|
|
(((old) & ~(((1 << MACB_##name##_SIZE) - 1) \
|
|
<< MACB_##name##_OFFSET)) \
|
|
| MACB_BF(name,value))
|
|
|
|
#define GEM_BIT(name) \
|
|
(1 << GEM_##name##_OFFSET)
|
|
#define GEM_BF(name, value) \
|
|
(((value) & ((1 << GEM_##name##_SIZE) - 1)) \
|
|
<< GEM_##name##_OFFSET)
|
|
#define GEM_BFEXT(name, value)\
|
|
(((value) >> GEM_##name##_OFFSET) \
|
|
& ((1 << GEM_##name##_SIZE) - 1))
|
|
#define GEM_BFINS(name, value, old) \
|
|
(((old) & ~(((1 << GEM_##name##_SIZE) - 1) \
|
|
<< GEM_##name##_OFFSET)) \
|
|
| GEM_BF(name, value))
|
|
|
|
/* Register access macros */
|
|
#define macb_readl(port,reg) \
|
|
readl_relaxed((port)->regs + MACB_##reg)
|
|
#define macb_writel(port,reg,value) \
|
|
writel_relaxed((value), (port)->regs + MACB_##reg)
|
|
#define gem_readl(port, reg) \
|
|
readl_relaxed((port)->regs + GEM_##reg)
|
|
#define gem_writel(port, reg, value) \
|
|
writel_relaxed((value), (port)->regs + GEM_##reg)
|
|
#define queue_readl(queue, reg) \
|
|
readl_relaxed((queue)->bp->regs + (queue)->reg)
|
|
#define queue_writel(queue, reg, value) \
|
|
writel_relaxed((value), (queue)->bp->regs + (queue)->reg)
|
|
|
|
/* Conditional GEM/MACB macros. These perform the operation to the correct
|
|
* register dependent on whether the device is a GEM or a MACB. For registers
|
|
* and bitfields that are common across both devices, use macb_{read,write}l
|
|
* to avoid the cost of the conditional.
|
|
*/
|
|
#define macb_or_gem_writel(__bp, __reg, __value) \
|
|
({ \
|
|
if (macb_is_gem((__bp))) \
|
|
gem_writel((__bp), __reg, __value); \
|
|
else \
|
|
macb_writel((__bp), __reg, __value); \
|
|
})
|
|
|
|
#define macb_or_gem_readl(__bp, __reg) \
|
|
({ \
|
|
u32 __v; \
|
|
if (macb_is_gem((__bp))) \
|
|
__v = gem_readl((__bp), __reg); \
|
|
else \
|
|
__v = macb_readl((__bp), __reg); \
|
|
__v; \
|
|
})
|
|
|
|
/* struct macb_dma_desc - Hardware DMA descriptor
|
|
* @addr: DMA address of data buffer
|
|
* @ctrl: Control and status bits
|
|
*/
|
|
struct macb_dma_desc {
|
|
u32 addr;
|
|
u32 ctrl;
|
|
};
|
|
|
|
/* DMA descriptor bitfields */
|
|
#define MACB_RX_USED_OFFSET 0
|
|
#define MACB_RX_USED_SIZE 1
|
|
#define MACB_RX_WRAP_OFFSET 1
|
|
#define MACB_RX_WRAP_SIZE 1
|
|
#define MACB_RX_WADDR_OFFSET 2
|
|
#define MACB_RX_WADDR_SIZE 30
|
|
|
|
#define MACB_RX_FRMLEN_OFFSET 0
|
|
#define MACB_RX_FRMLEN_SIZE 12
|
|
#define MACB_RX_OFFSET_OFFSET 12
|
|
#define MACB_RX_OFFSET_SIZE 2
|
|
#define MACB_RX_SOF_OFFSET 14
|
|
#define MACB_RX_SOF_SIZE 1
|
|
#define MACB_RX_EOF_OFFSET 15
|
|
#define MACB_RX_EOF_SIZE 1
|
|
#define MACB_RX_CFI_OFFSET 16
|
|
#define MACB_RX_CFI_SIZE 1
|
|
#define MACB_RX_VLAN_PRI_OFFSET 17
|
|
#define MACB_RX_VLAN_PRI_SIZE 3
|
|
#define MACB_RX_PRI_TAG_OFFSET 20
|
|
#define MACB_RX_PRI_TAG_SIZE 1
|
|
#define MACB_RX_VLAN_TAG_OFFSET 21
|
|
#define MACB_RX_VLAN_TAG_SIZE 1
|
|
#define MACB_RX_TYPEID_MATCH_OFFSET 22
|
|
#define MACB_RX_TYPEID_MATCH_SIZE 1
|
|
#define MACB_RX_SA4_MATCH_OFFSET 23
|
|
#define MACB_RX_SA4_MATCH_SIZE 1
|
|
#define MACB_RX_SA3_MATCH_OFFSET 24
|
|
#define MACB_RX_SA3_MATCH_SIZE 1
|
|
#define MACB_RX_SA2_MATCH_OFFSET 25
|
|
#define MACB_RX_SA2_MATCH_SIZE 1
|
|
#define MACB_RX_SA1_MATCH_OFFSET 26
|
|
#define MACB_RX_SA1_MATCH_SIZE 1
|
|
#define MACB_RX_EXT_MATCH_OFFSET 28
|
|
#define MACB_RX_EXT_MATCH_SIZE 1
|
|
#define MACB_RX_UHASH_MATCH_OFFSET 29
|
|
#define MACB_RX_UHASH_MATCH_SIZE 1
|
|
#define MACB_RX_MHASH_MATCH_OFFSET 30
|
|
#define MACB_RX_MHASH_MATCH_SIZE 1
|
|
#define MACB_RX_BROADCAST_OFFSET 31
|
|
#define MACB_RX_BROADCAST_SIZE 1
|
|
|
|
/* RX checksum offload disabled: bit 24 clear in NCFGR */
|
|
#define GEM_RX_TYPEID_MATCH_OFFSET 22
|
|
#define GEM_RX_TYPEID_MATCH_SIZE 2
|
|
|
|
/* RX checksum offload enabled: bit 24 set in NCFGR */
|
|
#define GEM_RX_CSUM_OFFSET 22
|
|
#define GEM_RX_CSUM_SIZE 2
|
|
|
|
#define MACB_TX_FRMLEN_OFFSET 0
|
|
#define MACB_TX_FRMLEN_SIZE 11
|
|
#define MACB_TX_LAST_OFFSET 15
|
|
#define MACB_TX_LAST_SIZE 1
|
|
#define MACB_TX_NOCRC_OFFSET 16
|
|
#define MACB_TX_NOCRC_SIZE 1
|
|
#define MACB_TX_BUF_EXHAUSTED_OFFSET 27
|
|
#define MACB_TX_BUF_EXHAUSTED_SIZE 1
|
|
#define MACB_TX_UNDERRUN_OFFSET 28
|
|
#define MACB_TX_UNDERRUN_SIZE 1
|
|
#define MACB_TX_ERROR_OFFSET 29
|
|
#define MACB_TX_ERROR_SIZE 1
|
|
#define MACB_TX_WRAP_OFFSET 30
|
|
#define MACB_TX_WRAP_SIZE 1
|
|
#define MACB_TX_USED_OFFSET 31
|
|
#define MACB_TX_USED_SIZE 1
|
|
|
|
#define GEM_TX_FRMLEN_OFFSET 0
|
|
#define GEM_TX_FRMLEN_SIZE 14
|
|
|
|
/* Buffer descriptor constants */
|
|
#define GEM_RX_CSUM_NONE 0
|
|
#define GEM_RX_CSUM_IP_ONLY 1
|
|
#define GEM_RX_CSUM_IP_TCP 2
|
|
#define GEM_RX_CSUM_IP_UDP 3
|
|
|
|
/* limit RX checksum offload to TCP and UDP packets */
|
|
#define GEM_RX_CSUM_CHECKED_MASK 2
|
|
|
|
/* struct macb_tx_skb - data about an skb which is being transmitted
|
|
* @skb: skb currently being transmitted, only set for the last buffer
|
|
* of the frame
|
|
* @mapping: DMA address of the skb's fragment buffer
|
|
* @size: size of the DMA mapped buffer
|
|
* @mapped_as_page: true when buffer was mapped with skb_frag_dma_map(),
|
|
* false when buffer was mapped with dma_map_single()
|
|
*/
|
|
struct macb_tx_skb {
|
|
struct sk_buff *skb;
|
|
dma_addr_t mapping;
|
|
size_t size;
|
|
bool mapped_as_page;
|
|
};
|
|
|
|
/* Hardware-collected statistics. Used when updating the network
|
|
* device stats by a periodic timer.
|
|
*/
|
|
struct macb_stats {
|
|
u32 rx_pause_frames;
|
|
u32 tx_ok;
|
|
u32 tx_single_cols;
|
|
u32 tx_multiple_cols;
|
|
u32 rx_ok;
|
|
u32 rx_fcs_errors;
|
|
u32 rx_align_errors;
|
|
u32 tx_deferred;
|
|
u32 tx_late_cols;
|
|
u32 tx_excessive_cols;
|
|
u32 tx_underruns;
|
|
u32 tx_carrier_errors;
|
|
u32 rx_resource_errors;
|
|
u32 rx_overruns;
|
|
u32 rx_symbol_errors;
|
|
u32 rx_oversize_pkts;
|
|
u32 rx_jabbers;
|
|
u32 rx_undersize_pkts;
|
|
u32 sqe_test_errors;
|
|
u32 rx_length_mismatch;
|
|
u32 tx_pause_frames;
|
|
};
|
|
|
|
struct gem_stats {
|
|
u32 tx_octets_31_0;
|
|
u32 tx_octets_47_32;
|
|
u32 tx_frames;
|
|
u32 tx_broadcast_frames;
|
|
u32 tx_multicast_frames;
|
|
u32 tx_pause_frames;
|
|
u32 tx_64_byte_frames;
|
|
u32 tx_65_127_byte_frames;
|
|
u32 tx_128_255_byte_frames;
|
|
u32 tx_256_511_byte_frames;
|
|
u32 tx_512_1023_byte_frames;
|
|
u32 tx_1024_1518_byte_frames;
|
|
u32 tx_greater_than_1518_byte_frames;
|
|
u32 tx_underrun;
|
|
u32 tx_single_collision_frames;
|
|
u32 tx_multiple_collision_frames;
|
|
u32 tx_excessive_collisions;
|
|
u32 tx_late_collisions;
|
|
u32 tx_deferred_frames;
|
|
u32 tx_carrier_sense_errors;
|
|
u32 rx_octets_31_0;
|
|
u32 rx_octets_47_32;
|
|
u32 rx_frames;
|
|
u32 rx_broadcast_frames;
|
|
u32 rx_multicast_frames;
|
|
u32 rx_pause_frames;
|
|
u32 rx_64_byte_frames;
|
|
u32 rx_65_127_byte_frames;
|
|
u32 rx_128_255_byte_frames;
|
|
u32 rx_256_511_byte_frames;
|
|
u32 rx_512_1023_byte_frames;
|
|
u32 rx_1024_1518_byte_frames;
|
|
u32 rx_greater_than_1518_byte_frames;
|
|
u32 rx_undersized_frames;
|
|
u32 rx_oversize_frames;
|
|
u32 rx_jabbers;
|
|
u32 rx_frame_check_sequence_errors;
|
|
u32 rx_length_field_frame_errors;
|
|
u32 rx_symbol_errors;
|
|
u32 rx_alignment_errors;
|
|
u32 rx_resource_errors;
|
|
u32 rx_overruns;
|
|
u32 rx_ip_header_checksum_errors;
|
|
u32 rx_tcp_checksum_errors;
|
|
u32 rx_udp_checksum_errors;
|
|
};
|
|
|
|
/* Describes the name and offset of an individual statistic register, as
|
|
* returned by `ethtool -S`. Also describes which net_device_stats statistics
|
|
* this register should contribute to.
|
|
*/
|
|
struct gem_statistic {
|
|
char stat_string[ETH_GSTRING_LEN];
|
|
int offset;
|
|
u32 stat_bits;
|
|
};
|
|
|
|
/* Bitfield defs for net_device_stat statistics */
|
|
#define GEM_NDS_RXERR_OFFSET 0
|
|
#define GEM_NDS_RXLENERR_OFFSET 1
|
|
#define GEM_NDS_RXOVERERR_OFFSET 2
|
|
#define GEM_NDS_RXCRCERR_OFFSET 3
|
|
#define GEM_NDS_RXFRAMEERR_OFFSET 4
|
|
#define GEM_NDS_RXFIFOERR_OFFSET 5
|
|
#define GEM_NDS_TXERR_OFFSET 6
|
|
#define GEM_NDS_TXABORTEDERR_OFFSET 7
|
|
#define GEM_NDS_TXCARRIERERR_OFFSET 8
|
|
#define GEM_NDS_TXFIFOERR_OFFSET 9
|
|
#define GEM_NDS_COLLISIONS_OFFSET 10
|
|
|
|
#define GEM_STAT_TITLE(name, title) GEM_STAT_TITLE_BITS(name, title, 0)
|
|
#define GEM_STAT_TITLE_BITS(name, title, bits) { \
|
|
.stat_string = title, \
|
|
.offset = GEM_##name, \
|
|
.stat_bits = bits \
|
|
}
|
|
|
|
/* list of gem statistic registers. The names MUST match the
|
|
* corresponding GEM_* definitions.
|
|
*/
|
|
static const struct gem_statistic gem_statistics[] = {
|
|
GEM_STAT_TITLE(OCTTXL, "tx_octets"), /* OCTTXH combined with OCTTXL */
|
|
GEM_STAT_TITLE(TXCNT, "tx_frames"),
|
|
GEM_STAT_TITLE(TXBCCNT, "tx_broadcast_frames"),
|
|
GEM_STAT_TITLE(TXMCCNT, "tx_multicast_frames"),
|
|
GEM_STAT_TITLE(TXPAUSECNT, "tx_pause_frames"),
|
|
GEM_STAT_TITLE(TX64CNT, "tx_64_byte_frames"),
|
|
GEM_STAT_TITLE(TX65CNT, "tx_65_127_byte_frames"),
|
|
GEM_STAT_TITLE(TX128CNT, "tx_128_255_byte_frames"),
|
|
GEM_STAT_TITLE(TX256CNT, "tx_256_511_byte_frames"),
|
|
GEM_STAT_TITLE(TX512CNT, "tx_512_1023_byte_frames"),
|
|
GEM_STAT_TITLE(TX1024CNT, "tx_1024_1518_byte_frames"),
|
|
GEM_STAT_TITLE(TX1519CNT, "tx_greater_than_1518_byte_frames"),
|
|
GEM_STAT_TITLE_BITS(TXURUNCNT, "tx_underrun",
|
|
GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_TXFIFOERR)),
|
|
GEM_STAT_TITLE_BITS(SNGLCOLLCNT, "tx_single_collision_frames",
|
|
GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
|
|
GEM_STAT_TITLE_BITS(MULTICOLLCNT, "tx_multiple_collision_frames",
|
|
GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
|
|
GEM_STAT_TITLE_BITS(EXCESSCOLLCNT, "tx_excessive_collisions",
|
|
GEM_BIT(NDS_TXERR)|
|
|
GEM_BIT(NDS_TXABORTEDERR)|
|
|
GEM_BIT(NDS_COLLISIONS)),
|
|
GEM_STAT_TITLE_BITS(LATECOLLCNT, "tx_late_collisions",
|
|
GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
|
|
GEM_STAT_TITLE(TXDEFERCNT, "tx_deferred_frames"),
|
|
GEM_STAT_TITLE_BITS(TXCSENSECNT, "tx_carrier_sense_errors",
|
|
GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
|
|
GEM_STAT_TITLE(OCTRXL, "rx_octets"), /* OCTRXH combined with OCTRXL */
|
|
GEM_STAT_TITLE(RXCNT, "rx_frames"),
|
|
GEM_STAT_TITLE(RXBROADCNT, "rx_broadcast_frames"),
|
|
GEM_STAT_TITLE(RXMULTICNT, "rx_multicast_frames"),
|
|
GEM_STAT_TITLE(RXPAUSECNT, "rx_pause_frames"),
|
|
GEM_STAT_TITLE(RX64CNT, "rx_64_byte_frames"),
|
|
GEM_STAT_TITLE(RX65CNT, "rx_65_127_byte_frames"),
|
|
GEM_STAT_TITLE(RX128CNT, "rx_128_255_byte_frames"),
|
|
GEM_STAT_TITLE(RX256CNT, "rx_256_511_byte_frames"),
|
|
GEM_STAT_TITLE(RX512CNT, "rx_512_1023_byte_frames"),
|
|
GEM_STAT_TITLE(RX1024CNT, "rx_1024_1518_byte_frames"),
|
|
GEM_STAT_TITLE(RX1519CNT, "rx_greater_than_1518_byte_frames"),
|
|
GEM_STAT_TITLE_BITS(RXUNDRCNT, "rx_undersized_frames",
|
|
GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
|
|
GEM_STAT_TITLE_BITS(RXOVRCNT, "rx_oversize_frames",
|
|
GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
|
|
GEM_STAT_TITLE_BITS(RXJABCNT, "rx_jabbers",
|
|
GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
|
|
GEM_STAT_TITLE_BITS(RXFCSCNT, "rx_frame_check_sequence_errors",
|
|
GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXCRCERR)),
|
|
GEM_STAT_TITLE_BITS(RXLENGTHCNT, "rx_length_field_frame_errors",
|
|
GEM_BIT(NDS_RXERR)),
|
|
GEM_STAT_TITLE_BITS(RXSYMBCNT, "rx_symbol_errors",
|
|
GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFRAMEERR)),
|
|
GEM_STAT_TITLE_BITS(RXALIGNCNT, "rx_alignment_errors",
|
|
GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)),
|
|
GEM_STAT_TITLE_BITS(RXRESERRCNT, "rx_resource_errors",
|
|
GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)),
|
|
GEM_STAT_TITLE_BITS(RXORCNT, "rx_overruns",
|
|
GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFIFOERR)),
|
|
GEM_STAT_TITLE_BITS(RXIPCCNT, "rx_ip_header_checksum_errors",
|
|
GEM_BIT(NDS_RXERR)),
|
|
GEM_STAT_TITLE_BITS(RXTCPCCNT, "rx_tcp_checksum_errors",
|
|
GEM_BIT(NDS_RXERR)),
|
|
GEM_STAT_TITLE_BITS(RXUDPCCNT, "rx_udp_checksum_errors",
|
|
GEM_BIT(NDS_RXERR)),
|
|
};
|
|
|
|
#define GEM_STATS_LEN ARRAY_SIZE(gem_statistics)
|
|
|
|
struct macb;
|
|
|
|
struct macb_or_gem_ops {
|
|
int (*mog_alloc_rx_buffers)(struct macb *bp);
|
|
void (*mog_free_rx_buffers)(struct macb *bp);
|
|
void (*mog_init_rings)(struct macb *bp);
|
|
int (*mog_rx)(struct macb *bp, int budget);
|
|
};
|
|
|
|
struct macb_config {
|
|
u32 caps;
|
|
unsigned int dma_burst_length;
|
|
int (*init)(struct platform_device *pdev);
|
|
};
|
|
|
|
struct macb_queue {
|
|
struct macb *bp;
|
|
int irq;
|
|
|
|
unsigned int ISR;
|
|
unsigned int IER;
|
|
unsigned int IDR;
|
|
unsigned int IMR;
|
|
unsigned int TBQP;
|
|
|
|
unsigned int tx_head, tx_tail;
|
|
struct macb_dma_desc *tx_ring;
|
|
struct macb_tx_skb *tx_skb;
|
|
dma_addr_t tx_ring_dma;
|
|
struct work_struct tx_error_task;
|
|
};
|
|
|
|
struct macb {
|
|
void __iomem *regs;
|
|
|
|
unsigned int rx_tail;
|
|
unsigned int rx_prepared_head;
|
|
struct macb_dma_desc *rx_ring;
|
|
struct sk_buff **rx_skbuff;
|
|
void *rx_buffers;
|
|
size_t rx_buffer_size;
|
|
|
|
unsigned int num_queues;
|
|
struct macb_queue queues[MACB_MAX_QUEUES];
|
|
|
|
spinlock_t lock;
|
|
struct platform_device *pdev;
|
|
struct clk *pclk;
|
|
struct clk *hclk;
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struct clk *tx_clk;
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struct net_device *dev;
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struct napi_struct napi;
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struct net_device_stats stats;
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union {
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struct macb_stats macb;
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|
struct gem_stats gem;
|
|
} hw_stats;
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|
|
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dma_addr_t rx_ring_dma;
|
|
dma_addr_t rx_buffers_dma;
|
|
|
|
struct macb_or_gem_ops macbgem_ops;
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|
|
|
struct mii_bus *mii_bus;
|
|
struct phy_device *phy_dev;
|
|
unsigned int link;
|
|
unsigned int speed;
|
|
unsigned int duplex;
|
|
|
|
u32 caps;
|
|
unsigned int dma_burst_length;
|
|
|
|
phy_interface_t phy_interface;
|
|
|
|
/* AT91RM9200 transmit */
|
|
struct sk_buff *skb; /* holds skb until xmit interrupt completes */
|
|
dma_addr_t skb_physaddr; /* phys addr from pci_map_single */
|
|
int skb_length; /* saved skb length for pci_unmap_single */
|
|
unsigned int max_tx_length;
|
|
|
|
u64 ethtool_stats[GEM_STATS_LEN];
|
|
};
|
|
|
|
static inline bool macb_is_gem(struct macb *bp)
|
|
{
|
|
return !!(bp->caps & MACB_CAPS_MACB_IS_GEM);
|
|
}
|
|
|
|
#endif /* _MACB_H */
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