/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Atmel MACB Ethernet Controller driver
*
* Copyright (C) 2004-2006 Atmel Corporation
*/
#ifndef _MACB_H
#define _MACB_H
#include <linux/clk.h>
#include <linux/phylink.h>
#include <linux/ptp_clock_kernel.h>
#include <linux/net_tstamp.h>
#include <linux/interrupt.h>
#include <linux/phy/phy.h>
#include <linux/workqueue.h>
#if defined(CONFIG_ARCH_DMA_ADDR_T_64BIT) || defined(CONFIG_MACB_USE_HWSTAMP)
#define MACB_EXT_DESC
#endif
#define MACB_GREGS_NBR 16
#define MACB_GREGS_VERSION 2
#define MACB_MAX_QUEUES 8
/* MACB register offsets */
#define MACB_NCR 0x0000 /* Network Control */
#define MACB_NCFGR 0x0004 /* Network Config */
#define MACB_NSR 0x0008 /* Network Status */
#define MACB_TAR 0x000c /* AT91RM9200 only */
#define MACB_TCR 0x0010 /* AT91RM9200 only */
#define MACB_TSR 0x0014 /* Transmit Status */
#define MACB_RBQP 0x0018 /* RX Q Base Address */
#define MACB_TBQP 0x001c /* TX Q Base Address */
#define MACB_RSR 0x0020 /* Receive Status */
#define MACB_ISR 0x0024 /* Interrupt Status */
#define MACB_IER 0x0028 /* Interrupt Enable */
#define MACB_IDR 0x002c /* Interrupt Disable */
#define MACB_IMR 0x0030 /* Interrupt Mask */
#define MACB_MAN 0x0034 /* PHY Maintenance */
#define MACB_PTR 0x0038
#define MACB_PFR 0x003c
#define MACB_FTO 0x0040
#define MACB_SCF 0x0044
#define MACB_MCF 0x0048
#define MACB_FRO 0x004c
#define MACB_FCSE 0x0050
#define MACB_ALE 0x0054
#define MACB_DTF 0x0058
#define MACB_LCOL 0x005c
#define MACB_EXCOL 0x0060
#define MACB_TUND 0x0064
#define MACB_CSE 0x0068
#define MACB_RRE 0x006c
#define MACB_ROVR 0x0070
#define MACB_RSE 0x0074
#define MACB_ELE 0x0078
#define MACB_RJA 0x007c
#define MACB_USF 0x0080
#define MACB_STE 0x0084
#define MACB_RLE 0x0088
#define MACB_TPF 0x008c
#define MACB_HRB 0x0090
#define MACB_HRT 0x0094
#define MACB_SA1B 0x0098
#define MACB_SA1T 0x009c
#define MACB_SA2B 0x00a0
#define MACB_SA2T 0x00a4
#define MACB_SA3B 0x00a8
#define MACB_SA3T 0x00ac
#define MACB_SA4B 0x00b0
#define MACB_SA4T 0x00b4
#define MACB_TID 0x00b8
#define MACB_TPQ 0x00bc
#define MACB_USRIO 0x00c0
#define MACB_WOL 0x00c4
#define MACB_MID 0x00fc
#define MACB_TBQPH 0x04C8
#define MACB_RBQPH 0x04D4
/* GEM register offsets. */
#define GEM_NCR 0x0000 /* Network Control */
#define GEM_NCFGR 0x0004 /* Network Config */
#define GEM_USRIO 0x000c /* User IO */
#define GEM_DMACFG 0x0010 /* DMA Configuration */
#define GEM_PBUFRXCUT 0x0044 /* RX Partial Store and Forward */
#define GEM_JML 0x0048 /* Jumbo Max Length */
#define GEM_HS_MAC_CONFIG 0x0050 /* GEM high speed config */
#define GEM_HRB 0x0080 /* Hash Bottom */
#define GEM_HRT 0x0084 /* Hash Top */
#define GEM_SA1B 0x0088 /* Specific1 Bottom */
#define GEM_SA1T 0x008C /* Specific1 Top */
#define GEM_SA2B 0x0090 /* Specific2 Bottom */
#define GEM_SA2T 0x0094 /* Specific2 Top */
#define GEM_SA3B 0x0098 /* Specific3 Bottom */
#define GEM_SA3T 0x009C /* Specific3 Top */
#define GEM_SA4B 0x00A0 /* Specific4 Bottom */
#define GEM_SA4T 0x00A4 /* Specific4 Top */
#define GEM_WOL 0x00b8 /* Wake on LAN */
#define GEM_RXPTPUNI 0x00D4 /* PTP RX Unicast address */
#define GEM_TXPTPUNI 0x00D8 /* PTP TX Unicast address */
#define GEM_EFTSH 0x00e8 /* PTP Event Frame Transmitted Seconds Register 47:32 */
#define GEM_EFRSH 0x00ec /* PTP Event Frame Received Seconds Register 47:32 */
#define GEM_PEFTSH 0x00f0 /* PTP Peer Event Frame Transmitted Seconds Register 47:32 */
#define GEM_PEFRSH 0x00f4 /* PTP Peer Event Frame Received Seconds Register 47:32 */
#define GEM_OTX 0x0100 /* Octets transmitted */
#define GEM_OCTTXL 0x0100 /* Octets transmitted [31:0] */
#define GEM_OCTTXH 0x0104 /* Octets transmitted [47:32] */
#define GEM_TXCNT 0x0108 /* Frames Transmitted counter */
#define GEM_TXBCCNT 0x010c /* Broadcast Frames counter */
#define GEM_TXMCCNT 0x0110 /* Multicast Frames counter */
#define GEM_TXPAUSECNT 0x0114 /* Pause Frames Transmitted Counter */
#define GEM_TX64CNT 0x0118 /* 64 byte Frames TX counter */
#define GEM_TX65CNT 0x011c /* 65-127 byte Frames TX counter */
#define GEM_TX128CNT 0x0120 /* 128-255 byte Frames TX counter */
#define GEM_TX256CNT 0x0124 /* 256-511 byte Frames TX counter */
#define GEM_TX512CNT 0x0128 /* 512-1023 byte Frames TX counter */
#define GEM_TX1024CNT 0x012c /* 1024-1518 byte Frames TX counter */
#define GEM_TX1519CNT 0x0130 /* 1519+ byte Frames TX counter */
#define GEM_TXURUNCNT 0x0134 /* TX under run error counter */
#define GEM_SNGLCOLLCNT 0x0138 /* Single Collision Frame Counter */
#define GEM_MULTICOLLCNT 0x013c /* Multiple Collision Frame Counter */
#define GEM_EXCESSCOLLCNT 0x0140 /* Excessive Collision Frame Counter */
#define GEM_LATECOLLCNT 0x0144 /* Late Collision Frame Counter */
#define GEM_TXDEFERCNT 0x0148 /* Deferred Transmission Frame Counter */
#define GEM_TXCSENSECNT 0x014c /* Carrier Sense Error Counter */
#define GEM_ORX 0x0150 /* Octets received */
#define GEM_OCTRXL 0x0150 /* Octets received [31:0] */
#define GEM_OCTRXH 0x0154 /* Octets received [47:32] */
#define GEM_RXCNT 0x0158 /* Frames Received Counter */
#define GEM_RXBROADCNT 0x015c /* Broadcast Frames Received Counter */
#define GEM_RXMULTICNT 0x0160 /* Multicast Frames Received Counter */
#define GEM_RXPAUSECNT 0x0164 /* Pause Frames Received Counter */
#define GEM_RX64CNT 0x0168 /* 64 byte Frames RX Counter */
#define GEM_RX65CNT 0x016c /* 65-127 byte Frames RX Counter */
#define GEM_RX128CNT 0x0170 /* 128-255 byte Frames RX Counter */
#define GEM_RX256CNT 0x0174 /* 256-511 byte Frames RX Counter */
#define GEM_RX512CNT 0x0178 /* 512-1023 byte Frames RX Counter */
#define GEM_RX1024CNT 0x017c /* 1024-1518 byte Frames RX Counter */
#define GEM_RX1519CNT 0x0180 /* 1519+ byte Frames RX Counter */
#define GEM_RXUNDRCNT 0x0184 /* Undersize Frames Received Counter */
#define GEM_RXOVRCNT 0x0188 /* Oversize Frames Received Counter */
#define GEM_RXJABCNT 0x018c /* Jabbers Received Counter */
#define GEM_RXFCSCNT 0x0190 /* Frame Check Sequence Error Counter */
#define GEM_RXLENGTHCNT 0x0194 /* Length Field Error Counter */
#define GEM_RXSYMBCNT 0x0198 /* Symbol Error Counter */
#define GEM_RXALIGNCNT 0x019c /* Alignment Error Counter */
#define GEM_RXRESERRCNT 0x01a0 /* Receive Resource Error Counter */
#define GEM_RXORCNT 0x01a4 /* Receive Overrun Counter */
#define GEM_RXIPCCNT 0x01a8 /* IP header Checksum Error Counter */
#define GEM_RXTCPCCNT 0x01ac /* TCP Checksum Error Counter */
#define GEM_RXUDPCCNT 0x01b0 /* UDP Checksum Error Counter */
#define GEM_TISUBN 0x01bc /* 1588 Timer Increment Sub-ns */
#define GEM_TSH 0x01c0 /* 1588 Timer Seconds High */
#define GEM_TSL 0x01d0 /* 1588 Timer Seconds Low */
#define GEM_TN 0x01d4 /* 1588 Timer Nanoseconds */
#define GEM_TA 0x01d8 /* 1588 Timer Adjust */
#define GEM_TI 0x01dc /* 1588 Timer Increment */
#define GEM_EFTSL 0x01e0 /* PTP Event Frame Tx Seconds Low */
#define GEM_EFTN 0x01e4 /* PTP Event Frame Tx Nanoseconds */
#define GEM_EFRSL 0x01e8 /* PTP Event Frame Rx Seconds Low */
#define GEM_EFRN 0x01ec /* PTP Event Frame Rx Nanoseconds */
#define GEM_PEFTSL 0x01f0 /* PTP Peer Event Frame Tx Secs Low */
#define GEM_PEFTN 0x01f4 /* PTP Peer Event Frame Tx Ns */
#define GEM_PEFRSL 0x01f8 /* PTP Peer Event Frame Rx Sec Low */
#define GEM_PEFRN 0x01fc /* PTP Peer Event Frame Rx Ns */
#define GEM_PCSCNTRL 0x0200 /* PCS Control */
#define GEM_PCSSTS 0x0204 /* PCS Status */
#define GEM_PCSPHYTOPID 0x0208 /* PCS PHY Top ID */
#define GEM_PCSPHYBOTID 0x020c /* PCS PHY Bottom ID */
#define GEM_PCSANADV 0x0210 /* PCS AN Advertisement */
#define GEM_PCSANLPBASE 0x0214 /* PCS AN Link Partner Base */
#define GEM_PCSANEXP 0x0218 /* PCS AN Expansion */
#define GEM_PCSANNPTX 0x021c /* PCS AN Next Page TX */
#define GEM_PCSANNPLP 0x0220 /* PCS AN Next Page LP */
#define GEM_PCSANEXTSTS 0x023c /* PCS AN Extended Status */
#define GEM_DCFG1 0x0280 /* Design Config 1 */
#define GEM_DCFG2 0x0284 /* Design Config 2 */
#define GEM_DCFG3 0x0288 /* Design Config 3 */
#define GEM_DCFG4 0x028c /* Design Config 4 */
#define GEM_DCFG5 0x0290 /* Design Config 5 */
#define GEM_DCFG6 0x0294 /* Design Config 6 */
#define GEM_DCFG7 0x0298 /* Design Config 7 */
#define GEM_DCFG8 0x029C /* Design Config 8 */
#define GEM_DCFG10 0x02A4 /* Design Config 10 */
#define GEM_DCFG12 0x02AC /* Design Config 12 */
#define GEM_USX_CONTROL 0x0A80 /* High speed PCS control register */
#define GEM_USX_STATUS 0x0A88 /* High speed PCS status register */
#define GEM_TXBDCTRL 0x04cc /* TX Buffer Descriptor control register */
#define GEM_RXBDCTRL 0x04d0 /* RX Buffer Descriptor control register */
/* Screener Type 2 match registers */
#define GEM_SCRT2 0x540
/* EtherType registers */
#define GEM_ETHT 0x06E0
/* Type 2 compare registers */
#define GEM_T2CMPW0 0x0700
#define GEM_T2CMPW1 0x0704
#define T2CMP_OFST(t2idx) (t2idx * 2)
/* type 2 compare registers
* each location requires 3 compare regs
*/
#define GEM_IP4SRC_CMP(idx) (idx * 3)
#define GEM_IP4DST_CMP(idx) (idx * 3 + 1)
#define GEM_PORT_CMP(idx) (idx * 3 + 2)
/* Which screening type 2 EtherType register will be used (0 - 7) */
#define SCRT2_ETHT 0
#define GEM_ISR(hw_q) (0x0400 + ((hw_q) << 2))
#define GEM_TBQP(hw_q) (0x0440 + ((hw_q) << 2))
#define GEM_TBQPH(hw_q) (0x04C8)
#define GEM_RBQP(hw_q) (0x0480 + ((hw_q) << 2))
#define GEM_RBQS(hw_q) (0x04A0 + ((hw_q) << 2))
#define GEM_RBQPH(hw_q) (0x04D4)
#define GEM_IER(hw_q) (0x0600 + ((hw_q) << 2))
#define GEM_IDR(hw_q) (0x0620 + ((hw_q) << 2))
#define GEM_IMR(hw_q) (0x0640 + ((hw_q) << 2))
/* Bitfields in NCR */
#define MACB_LB_OFFSET 0 /* reserved */
#define MACB_LB_SIZE 1
#define MACB_LLB_OFFSET 1 /* Loop back local */
#define MACB_LLB_SIZE 1
#define MACB_RE_OFFSET 2 /* Receive enable */
#define MACB_RE_SIZE 1
#define MACB_TE_OFFSET 3 /* Transmit enable */
#define MACB_TE_SIZE 1
#define MACB_MPE_OFFSET 4 /* Management port enable */
#define MACB_MPE_SIZE 1
#define MACB_CLRSTAT_OFFSET 5 /* Clear stats regs */
#define MACB_CLRSTAT_SIZE 1
#define MACB_INCSTAT_OFFSET 6 /* Incremental stats regs */
#define MACB_INCSTAT_SIZE 1
#define MACB_WESTAT_OFFSET 7 /* Write enable stats regs */
#define MACB_WESTAT_SIZE 1
#define MACB_BP_OFFSET 8 /* Back pressure */
#define MACB_BP_SIZE 1
#define MACB_TSTART_OFFSET 9 /* Start transmission */
#define MACB_TSTART_SIZE 1
#define MACB_THALT_OFFSET 10 /* Transmit halt */
#define MACB_THALT_SIZE 1
#define MACB_NCR_TPF_OFFSET 11 /* Transmit pause frame */
#define MACB_NCR_TPF_SIZE 1
#define MACB_TZQ_OFFSET 12 /* Transmit zero quantum pause frame */
#define MACB_TZQ_SIZE 1
#define MACB_SRTSM_OFFSET 15 /* Store Receive Timestamp to Memory */
#define MACB_PTPUNI_OFFSET 20 /* PTP Unicast packet enable */
#define MACB_PTPUNI_SIZE 1
#define MACB_OSSMODE_OFFSET 24 /* Enable One Step Synchro Mode */
#define MACB_OSSMODE_SIZE 1
#define MACB_MIIONRGMII_OFFSET 28 /* MII Usage on RGMII Interface */
#define MACB_MIIONRGMII_SIZE 1
/* Bitfields in NCFGR */
#define MACB_SPD_OFFSET 0 /* Speed */
#define MACB_SPD_SIZE 1
#define MACB_FD_OFFSET 1 /* Full duplex */
#define MACB_FD_SIZE 1
#define MACB_BIT_RATE_OFFSET 2 /* Discard non-VLAN frames */
#define MACB_BIT_RATE_SIZE 1
#define MACB_JFRAME_OFFSET 3 /* reserved */
#define MACB_JFRAME_SIZE 1
#define MACB_CAF_OFFSET 4 /* Copy all frames */
#define MACB_CAF_SIZE 1
#define MACB_NBC_OFFSET 5 /* No broadcast */
#define MACB_NBC_SIZE 1
#define MACB_NCFGR_MTI_OFFSET 6 /* Multicast hash enable */
#define MACB_NCFGR_MTI_SIZE 1
#define MACB_UNI_OFFSET 7 /* Unicast hash enable */
#define MACB_UNI_SIZE 1
#define MACB_BIG_OFFSET 8 /* Receive 1536 byte frames */
#define MACB_BIG_SIZE 1
#define MACB_EAE_OFFSET 9 /* External address match enable */
#define MACB_EAE_SIZE 1
#define MACB_CLK_OFFSET 10
#define MACB_CLK_SIZE 2
#define MACB_RTY_OFFSET 12 /* Retry test */
#define MACB_RTY_SIZE 1
#define MACB_PAE_OFFSET 13 /* Pause enable */
#define MACB_PAE_SIZE 1
#define MACB_RM9200_RMII_OFFSET 13 /* AT91RM9200 only */
#define MACB_RM9200_RMII_SIZE 1 /* AT91RM9200 only */
#define MACB_RBOF_OFFSET 14 /* Receive buffer offset */
#define MACB_RBOF_SIZE 2
#define MACB_RLCE_OFFSET 16 /* Length field error frame discard */
#define MACB_RLCE_SIZE 1
#define MACB_DRFCS_OFFSET 17 /* FCS remove */
#define MACB_DRFCS_SIZE 1
#define MACB_EFRHD_OFFSET 18
#define MACB_EFRHD_SIZE 1
#define MACB_IRXFCS_OFFSET 19
#define MACB_IRXFCS_SIZE 1
/* GEM specific NCR bitfields. */
#define GEM_ENABLE_HS_MAC_OFFSET 31
#define GEM_ENABLE_HS_MAC_SIZE 1
/* GEM specific NCFGR bitfields. */
#define GEM_FD_OFFSET 1 /* Full duplex */
#define GEM_FD_SIZE 1
#define GEM_GBE_OFFSET 10 /* Gigabit mode enable */
#define GEM_GBE_SIZE 1
#define GEM_PCSSEL_OFFSET 11
#define GEM_PCSSEL_SIZE 1
#define GEM_PAE_OFFSET 13 /* Pause enable */
#define GEM_PAE_SIZE 1
#define GEM_CLK_OFFSET 18 /* MDC clock division */
#define GEM_CLK_SIZE 3
#define GEM_DBW_OFFSET 21 /* Data bus width */
#define GEM_DBW_SIZE 2
#define GEM_RXCOEN_OFFSET 24
#define GEM_RXCOEN_SIZE 1
#define GEM_SGMIIEN_OFFSET 27
#define GEM_SGMIIEN_SIZE 1
/* Constants for data bus width. */
#define GEM_DBW32 0 /* 32 bit AMBA AHB data bus width */
#define GEM_DBW64 1 /* 64 bit AMBA AHB data bus width */
#define GEM_DBW128 2 /* 128 bit AMBA AHB data bus width */
/* Bitfields in DMACFG. */
#define GEM_FBLDO_OFFSET 0 /* fixed burst length for DMA */
#define GEM_FBLDO_SIZE 5
#define GEM_ENDIA_DESC_OFFSET 6 /* endian swap mode for management descriptor access */
#define GEM_ENDIA_DESC_SIZE 1
#define GEM_ENDIA_PKT_OFFSET 7 /* endian swap mode for packet data access */
#define GEM_ENDIA_PKT_SIZE 1
#define GEM_RXBMS_OFFSET 8 /* RX packet buffer memory size select */
#define GEM_RXBMS_SIZE 2
#define GEM_TXPBMS_OFFSET 10 /* TX packet buffer memory size select */
#define GEM_TXPBMS_SIZE 1
#define GEM_TXCOEN_OFFSET 11 /* TX IP/TCP/UDP checksum gen offload */
#define GEM_TXCOEN_SIZE 1
#define GEM_RXBS_OFFSET 16 /* DMA receive buffer size */
#define GEM_RXBS_SIZE 8
#define GEM_DDRP_OFFSET 24 /* disc_when_no_ahb */
#define GEM_DDRP_SIZE 1
#define GEM_RXEXT_OFFSET 28 /* RX extended Buffer Descriptor mode */
#define GEM_RXEXT_SIZE 1
#define GEM_TXEXT_OFFSET 29 /* TX extended Buffer Descriptor mode */
#define GEM_TXEXT_SIZE 1
#define GEM_ADDR64_OFFSET 30 /* Address bus width - 64b or 32b */
#define GEM_ADDR64_SIZE 1
/* Bitfields in PBUFRXCUT */
#define GEM_ENCUTTHRU_OFFSET 31 /* Enable RX partial store and forward */
#define GEM_ENCUTTHRU_SIZE 1
/* Bitfields in NSR */
#define MACB_NSR_LINK_OFFSET 0 /* pcs_link_state */
#define MACB_NSR_LINK_SIZE 1
#define MACB_MDIO_OFFSET 1 /* status of the mdio_in pin */
#define MACB_MDIO_SIZE 1
#define MACB_IDLE_OFFSET 2 /* The PHY management logic is idle */
#define MACB_IDLE_SIZE 1
/* Bitfields in TSR */
#define MACB_UBR_OFFSET 0 /* Used bit read */
#define MACB_UBR_SIZE 1
#define MACB_COL_OFFSET 1 /* Collision occurred */
#define MACB_COL_SIZE 1
#define MACB_TSR_RLE_OFFSET 2 /* Retry limit exceeded */
#define MACB_TSR_RLE_SIZE 1
#define MACB_TGO_OFFSET 3 /* Transmit go */
#define MACB_TGO_SIZE 1
#define MACB_BEX_OFFSET 4 /* TX frame corruption due to AHB error */
#define MACB_BEX_SIZE 1
#define MACB_RM9200_BNQ_OFFSET 4 /* AT91RM9200 only */
#define MACB_RM9200_BNQ_SIZE 1 /* AT91RM9200 only */
#define MACB_COMP_OFFSET 5 /* Trnasmit complete */
#define MACB_COMP_SIZE 1
#define MACB_UND_OFFSET 6 /* Trnasmit under run */
#define MACB_UND_SIZE 1
/* Bitfields in RSR */
#define MACB_BNA_OFFSET 0 /* Buffer not available */
#define MACB_BNA_SIZE 1
#define MACB_REC_OFFSET 1 /* Frame received */
#define MACB_REC_SIZE 1
#define MACB_OVR_OFFSET 2 /* Receive overrun */
#define MACB_OVR_SIZE 1
/* Bitfields in ISR/IER/IDR/IMR */
#define MACB_MFD_OFFSET 0 /* Management frame sent */
#define MACB_MFD_SIZE 1
#define MACB_RCOMP_OFFSET 1 /* Receive complete */
#define MACB_RCOMP_SIZE 1
#define MACB_RXUBR_OFFSET 2 /* RX used bit read */
#define MACB_RXUBR_SIZE 1
#define MACB_TXUBR_OFFSET 3 /* TX used bit read */
#define MACB_TXUBR_SIZE 1
#define MACB_ISR_TUND_OFFSET 4 /* Enable TX buffer under run interrupt */
#define MACB_ISR_TUND_SIZE 1
#define MACB_ISR_RLE_OFFSET 5 /* EN retry exceeded/late coll interrupt */
#define MACB_ISR_RLE_SIZE 1
#define MACB_TXERR_OFFSET 6 /* EN TX frame corrupt from error interrupt */
#define MACB_TXERR_SIZE 1
#define MACB_RM9200_TBRE_OFFSET 6 /* EN may send new frame interrupt (RM9200) */
#define MACB_RM9200_TBRE_SIZE 1
#define MACB_TCOMP_OFFSET 7 /* Enable transmit complete interrupt */
#define MACB_TCOMP_SIZE 1
#define MACB_ISR_LINK_OFFSET 9 /* Enable link change interrupt */
#define MACB_ISR_LINK_SIZE 1
#define MACB_ISR_ROVR_OFFSET 10 /* Enable receive overrun interrupt */
#define MACB_ISR_ROVR_SIZE 1
#define MACB_HRESP_OFFSET 11 /* Enable hrsep not OK interrupt */
#define MACB_HRESP_SIZE 1
#define MACB_PFR_OFFSET 12 /* Enable pause frame w/ quantum interrupt */
#define MACB_PFR_SIZE 1
#define MACB_PTZ_OFFSET 13 /* Enable pause time zero interrupt */
#define MACB_PTZ_SIZE 1
#define MACB_WOL_OFFSET 14 /* Enable wake-on-lan interrupt */
#define MACB_WOL_SIZE 1
#define MACB_DRQFR_OFFSET 18 /* PTP Delay Request Frame Received */
#define MACB_DRQFR_SIZE 1
#define MACB_SFR_OFFSET 19 /* PTP Sync Frame Received */
#define MACB_SFR_SIZE 1
#define MACB_DRQFT_OFFSET 20 /* PTP Delay Request Frame Transmitted */
#define MACB_DRQFT_SIZE 1
#define MACB_SFT_OFFSET 21 /* PTP Sync Frame Transmitted */
#define MACB_SFT_SIZE 1
#define MACB_PDRQFR_OFFSET 22 /* PDelay Request Frame Received */
#define MACB_PDRQFR_SIZE 1
#define MACB_PDRSFR_OFFSET 23 /* PDelay Response Frame Received */
#define MACB_PDRSFR_SIZE 1
#define MACB_PDRQFT_OFFSET 24 /* PDelay Request Frame Transmitted */
#define MACB_PDRQFT_SIZE 1
#define MACB_PDRSFT_OFFSET 25 /* PDelay Response Frame Transmitted */
#define MACB_PDRSFT_SIZE 1
#define MACB_SRI_OFFSET 26 /* TSU Seconds Register Increment */
#define MACB_SRI_SIZE 1
#define GEM_WOL_OFFSET 28 /* Enable wake-on-lan interrupt */
#define GEM_WOL_SIZE 1
/* Timer increment fields */
#define MACB_TI_CNS_OFFSET 0
#define MACB_TI_CNS_SIZE 8
#define MACB_TI_ACNS_OFFSET 8
#define MACB_TI_ACNS_SIZE 8
#define MACB_TI_NIT_OFFSET 16
#define MACB_TI_NIT_SIZE 8
/* Bitfields in MAN */
#define MACB_DATA_OFFSET 0 /* data */
#define MACB_DATA_SIZE 16
#define MACB_CODE_OFFSET 16 /* Must be written to 10 */
#define MACB_CODE_SIZE 2
#define MACB_REGA_OFFSET 18 /* Register address */
#define MACB_REGA_SIZE 5
#define MACB_PHYA_OFFSET 23 /* PHY address */
#define MACB_PHYA_SIZE 5
#define MACB_RW_OFFSET 28 /* Operation. 10 is read. 01 is write. */
#define MACB_RW_SIZE 2
#define MACB_SOF_OFFSET 30 /* Must be written to 1 for Clause 22 */
#define MACB_SOF_SIZE 2
/* Bitfields in USRIO (AVR32) */
#define MACB_MII_OFFSET 0
#define MACB_MII_SIZE 1
#define MACB_EAM_OFFSET 1
#define MACB_EAM_SIZE 1
#define MACB_TX_PAUSE_OFFSET 2
#define MACB_TX_PAUSE_SIZE 1
#define MACB_TX_PAUSE_ZERO_OFFSET 3
#define MACB_TX_PAUSE_ZERO_SIZE 1
/* Bitfields in USRIO (AT91) */
#define MACB_RMII_OFFSET 0
#define MACB_RMII_SIZE 1
#define GEM_RGMII_OFFSET 0 /* GEM gigabit mode */
#define GEM_RGMII_SIZE 1
#define MACB_CLKEN_OFFSET 1
#define MACB_CLKEN_SIZE 1
/* Bitfields in WOL */
#define MACB_IP_OFFSET 0
#define MACB_IP_SIZE 16
#define MACB_MAG_OFFSET 16
#define MACB_MAG_SIZE 1
#define MACB_ARP_OFFSET 17
#define MACB_ARP_SIZE 1
#define MACB_SA1_OFFSET 18
#define MACB_SA1_SIZE 1
#define MACB_WOL_MTI_OFFSET 19
#define MACB_WOL_MTI_SIZE 1
/* Bitfields in MID */
#define MACB_IDNUM_OFFSET 16
#define MACB_IDNUM_SIZE 12
#define MACB_REV_OFFSET 0
#define MACB_REV_SIZE 16
/* Bitfield in HS_MAC_CONFIG */
#define GEM_HS_MAC_SPEED_OFFSET 0
#define GEM_HS_MAC_SPEED_SIZE 3
/* Bitfields in PCSCNTRL */
#define GEM_PCSAUTONEG_OFFSET 12
#define GEM_PCSAUTONEG_SIZE 1
/* Bitfields in DCFG1. */
#define GEM_IRQCOR_OFFSET 23
#define GEM_IRQCOR_SIZE 1
#define GEM_DBWDEF_OFFSET 25
#define GEM_DBWDEF_SIZE 3
#define GEM_NO_PCS_OFFSET 0
#define GEM_NO_PCS_SIZE 1
/* Bitfields in DCFG2. */
#define GEM_RX_PKT_BUFF_OFFSET 20
#define GEM_RX_PKT_BUFF_SIZE 1
#define GEM_TX_PKT_BUFF_OFFSET 21
#define GEM_TX_PKT_BUFF_SIZE 1
#define GEM_RX_PBUF_ADDR_OFFSET 22
#define GEM_RX_PBUF_ADDR_SIZE 4
/* Bitfields in DCFG5. */
#define GEM_TSU_OFFSET 8
#define GEM_TSU_SIZE 1
/* Bitfields in DCFG6. */
#define GEM_PBUF_LSO_OFFSET 27
#define GEM_PBUF_LSO_SIZE 1
#define GEM_PBUF_CUTTHRU_OFFSET 25
#define GEM_PBUF_CUTTHRU_SIZE 1
#define GEM_DAW64_OFFSET 23
#define GEM_DAW64_SIZE 1
/* Bitfields in DCFG8. */
#define GEM_T1SCR_OFFSET 24
#define GEM_T1SCR_SIZE 8
#define GEM_T2SCR_OFFSET 16
#define GEM_T2SCR_SIZE 8
#define GEM_SCR2ETH_OFFSET 8
#define GEM_SCR2ETH_SIZE 8
#define GEM_SCR2CMP_OFFSET 0
#define GEM_SCR2CMP_SIZE 8
/* Bitfields in DCFG10 */
#define GEM_TXBD_RDBUFF_OFFSET 12
#define GEM_TXBD_RDBUFF_SIZE 4
#define GEM_RXBD_RDBUFF_OFFSET 8
#define GEM_RXBD_RDBUFF_SIZE 4
/* Bitfields in DCFG12. */
#define GEM_HIGH_SPEED_OFFSET 26
#define GEM_HIGH_SPEED_SIZE 1
/* Bitfields in USX_CONTROL. */
#define GEM_USX_CTRL_SPEED_OFFSET 14
#define GEM_USX_CTRL_SPEED_SIZE 3
#define GEM_SERDES_RATE_OFFSET 12
#define GEM_SERDES_RATE_SIZE 2
#define GEM_RX_SCR_BYPASS_OFFSET 9
#define GEM_RX_SCR_BYPASS_SIZE 1
#define GEM_TX_SCR_BYPASS_OFFSET 8
#define GEM_TX_SCR_BYPASS_SIZE 1
#define GEM_TX_EN_OFFSET 1
#define GEM_TX_EN_SIZE 1
#define GEM_SIGNAL_OK_OFFSET 0
#define GEM_SIGNAL_OK_SIZE 1
/* Bitfields in USX_STATUS. */
#define GEM_USX_BLOCK_LOCK_OFFSET 0
#define GEM_USX_BLOCK_LOCK_SIZE 1
/* Bitfields in TISUBN */
#define GEM_SUBNSINCR_OFFSET 0
#define GEM_SUBNSINCRL_OFFSET 24
#define GEM_SUBNSINCRL_SIZE 8
#define GEM_SUBNSINCRH_OFFSET 0
#define GEM_SUBNSINCRH_SIZE 16
#define GEM_SUBNSINCR_SIZE 24
/* Bitfields in TI */
#define GEM_NSINCR_OFFSET 0
#define GEM_NSINCR_SIZE 8
/* Bitfields in TSH */
#define GEM_TSH_OFFSET 0 /* TSU timer value (s). MSB [47:32] of seconds timer count */
#define GEM_TSH_SIZE 16
/* Bitfields in TSL */
#define GEM_TSL_OFFSET 0 /* TSU timer value (s). LSB [31:0] of seconds timer count */
#define GEM_TSL_SIZE 32
/* Bitfields in TN */
#define GEM_TN_OFFSET 0 /* TSU timer value (ns) */
#define GEM_TN_SIZE 30
/* Bitfields in TXBDCTRL */
#define GEM_TXTSMODE_OFFSET 4 /* TX Descriptor Timestamp Insertion mode */
#define GEM_TXTSMODE_SIZE 2
/* Bitfields in RXBDCTRL */
#define GEM_RXTSMODE_OFFSET 4 /* RX Descriptor Timestamp Insertion mode */
#define GEM_RXTSMODE_SIZE 2
/* Bitfields in SCRT2 */
#define GEM_QUEUE_OFFSET 0 /* Queue Number */
#define GEM_QUEUE_SIZE 4
#define GEM_VLANPR_OFFSET 4 /* VLAN Priority */
#define GEM_VLANPR_SIZE 3
#define GEM_VLANEN_OFFSET 8 /* VLAN Enable */
#define GEM_VLANEN_SIZE 1
#define GEM_ETHT2IDX_OFFSET 9 /* Index to screener type 2 EtherType register */
#define GEM_ETHT2IDX_SIZE 3
#define GEM_ETHTEN_OFFSET 12 /* EtherType Enable */
#define GEM_ETHTEN_SIZE 1
#define GEM_CMPA_OFFSET 13 /* Compare A - Index to screener type 2 Compare register */
#define GEM_CMPA_SIZE 5
#define GEM_CMPAEN_OFFSET 18 /* Compare A Enable */
#define GEM_CMPAEN_SIZE 1
#define GEM_CMPB_OFFSET 19 /* Compare B - Index to screener type 2 Compare register */
#define GEM_CMPB_SIZE 5
#define GEM_CMPBEN_OFFSET 24 /* Compare B Enable */
#define GEM_CMPBEN_SIZE 1
#define GEM_CMPC_OFFSET 25 /* Compare C - Index to screener type 2 Compare register */
#define GEM_CMPC_SIZE 5
#define GEM_CMPCEN_OFFSET 30 /* Compare C Enable */
#define GEM_CMPCEN_SIZE 1
/* Bitfields in ETHT */
#define GEM_ETHTCMP_OFFSET 0 /* EtherType compare value */
#define GEM_ETHTCMP_SIZE 16
/* Bitfields in T2CMPW0 */
#define GEM_T2CMP_OFFSET 16 /* 0xFFFF0000 compare value */
#define GEM_T2CMP_SIZE 16
#define GEM_T2MASK_OFFSET 0 /* 0x0000FFFF compare value or mask */
#define GEM_T2MASK_SIZE 16
/* Bitfields in T2CMPW1 */
#define GEM_T2DISMSK_OFFSET 9 /* disable mask */
#define GEM_T2DISMSK_SIZE 1
#define GEM_T2CMPOFST_OFFSET 7 /* compare offset */
#define GEM_T2CMPOFST_SIZE 2
#define GEM_T2OFST_OFFSET 0 /* offset value */
#define GEM_T2OFST_SIZE 7
/* Bitfields in queue pointer registers */
#define MACB_QUEUE_DISABLE_OFFSET 0 /* disable queue */
#define MACB_QUEUE_DISABLE_SIZE 1
/* Offset for screener type 2 compare values (T2CMPOFST).
* Note the offset is applied after the specified point,
* e.g. GEM_T2COMPOFST_ETYPE denotes the EtherType field, so an offset
* of 12 bytes from this would be the source IP address in an IP header
*/
#define GEM_T2COMPOFST_SOF 0
#define GEM_T2COMPOFST_ETYPE 1
#define GEM_T2COMPOFST_IPHDR 2
#define GEM_T2COMPOFST_TCPUDP 3
/* offset from EtherType to IP address */
#define ETYPE_SRCIP_OFFSET 12
#define ETYPE_DSTIP_OFFSET 16
/* offset from IP header to port */
#define IPHDR_SRCPORT_OFFSET 0
#define IPHDR_DSTPORT_OFFSET 2
/* Transmit DMA buffer descriptor Word 1 */
#define GEM_DMA_TXVALID_OFFSET 23 /* timestamp has been captured in the Buffer Descriptor */
#define GEM_DMA_TXVALID_SIZE 1
/* Receive DMA buffer descriptor Word 0 */
#define GEM_DMA_RXVALID_OFFSET 2 /* indicates a valid timestamp in the Buffer Descriptor */
#define GEM_DMA_RXVALID_SIZE 1
/* DMA buffer descriptor Word 2 (32 bit addressing) or Word 4 (64 bit addressing) */
#define GEM_DMA_SECL_OFFSET 30 /* Timestamp seconds[1:0] */
#define GEM_DMA_SECL_SIZE 2
#define GEM_DMA_NSEC_OFFSET 0 /* Timestamp nanosecs [29:0] */
#define GEM_DMA_NSEC_SIZE 30
/* DMA buffer descriptor Word 3 (32 bit addressing) or Word 5 (64 bit addressing) */
/* New hardware supports 12 bit precision of timestamp in DMA buffer descriptor.
* Old hardware supports only 6 bit precision but it is enough for PTP.
* Less accuracy is used always instead of checking hardware version.
*/
#define GEM_DMA_SECH_OFFSET 0 /* Timestamp seconds[5:2] */
#define GEM_DMA_SECH_SIZE 4
#define GEM_DMA_SEC_WIDTH (GEM_DMA_SECH_SIZE + GEM_DMA_SECL_SIZE)
#define GEM_DMA_SEC_TOP (1 << GEM_DMA_SEC_WIDTH)
#define GEM_DMA_SEC_MASK (GEM_DMA_SEC_TOP - 1)
/* Bitfields in ADJ */
#define GEM_ADDSUB_OFFSET 31
#define GEM_ADDSUB_SIZE 1
/* Constants for CLK */
#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
#define GEM_CLK_DIV128 6
#define GEM_CLK_DIV224 7
/* Constants for MAN register */
#define MACB_MAN_C22_SOF 1
#define MACB_MAN_C22_WRITE 1
#define MACB_MAN_C22_READ 2
#define MACB_MAN_C22_CODE 2
#define MACB_MAN_C45_SOF 0
#define MACB_MAN_C45_ADDR 0
#define MACB_MAN_C45_WRITE 1
#define MACB_MAN_C45_POST_READ_INCR 2
#define MACB_MAN_C45_READ 3
#define MACB_MAN_C45_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_GMII 0x00000004
#define MACB_CAPS_NO_GIGABIT_HALF 0x00000008
#define MACB_CAPS_USRIO_DISABLED 0x00000010
#define MACB_CAPS_JUMBO 0x00000020
#define MACB_CAPS_GEM_HAS_PTP 0x00000040
#define MACB_CAPS_BD_RD_PREFETCH 0x00000080
#define MACB_CAPS_NEEDS_RSTONUBR 0x00000100
#define MACB_CAPS_MIIONRGMII 0x00000200
#define MACB_CAPS_NEED_TSUCLK 0x00000400
#define MACB_CAPS_QUEUE_DISABLE 0x00000800
#define MACB_CAPS_PCS 0x01000000
#define MACB_CAPS_HIGH_SPEED 0x02000000
#define MACB_CAPS_CLK_HW_CHG 0x04000000
#define MACB_CAPS_MACB_IS_EMAC 0x08000000
#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
/* LSO settings */
#define MACB_LSO_UFO_ENABLE 0x01
#define MACB_LSO_TSO_ENABLE 0x02
/* 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) (port)->macb_reg_readl((port), MACB_##reg)
#define macb_writel(port, reg, value) (port)->macb_reg_writel((port), MACB_##reg, (value))
#define gem_readl(port, reg) (port)->macb_reg_readl((port), GEM_##reg)
#define gem_writel(port, reg, value) (port)->macb_reg_writel((port), GEM_##reg, (value))
#define queue_readl(queue, reg) (queue)->bp->macb_reg_readl((queue)->bp, (queue)->reg)
#define queue_writel(queue, reg, value) (queue)->bp->macb_reg_writel((queue)->bp, (queue)->reg, (value))
#define gem_readl_n(port, reg, idx) (port)->macb_reg_readl((port), GEM_##reg + idx * 4)
#define gem_writel_n(port, reg, idx, value) (port)->macb_reg_writel((port), GEM_##reg + idx * 4, (value))
/* 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; \
})
#define MACB_READ_NSR(bp) macb_readl(bp, NSR)
/* 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;
};
#ifdef MACB_EXT_DESC
#define HW_DMA_CAP_32B 0
#define HW_DMA_CAP_64B (1 << 0)
#define HW_DMA_CAP_PTP (1 << 1)
#define HW_DMA_CAP_64B_PTP (HW_DMA_CAP_64B | HW_DMA_CAP_PTP)
struct macb_dma_desc_64 {
u32 addrh;
u32 resvd;
};
struct macb_dma_desc_ptp {
u32 ts_1;
u32 ts_2;
};
#endif
/* 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
#define MACB_RX_FRMLEN_MASK 0xFFF
#define MACB_RX_JFRMLEN_MASK 0x3FFF
/* 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_MSS_MFS_OFFSET 16
#define MACB_MSS_MFS_SIZE 14
#define MACB_TX_LSO_OFFSET 17
#define MACB_TX_LSO_SIZE 2
#define MACB_TX_TCP_SEQ_SRC_OFFSET 19
#define MACB_TX_TCP_SEQ_SRC_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
/* Scaled PPM fraction */
#define PPM_FRACTION 16
/* 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)
#define QUEUE_STAT_TITLE(title) { \
.stat_string = title, \
}
/* per queue statistics, each should be unsigned long type */
struct queue_stats {
union {
unsigned long first;
unsigned long rx_packets;
};
unsigned long rx_bytes;
unsigned long rx_dropped;
unsigned long tx_packets;
unsigned long tx_bytes;
unsigned long tx_dropped;
};
static const struct gem_statistic queue_statistics[] = {
QUEUE_STAT_TITLE("rx_packets"),
QUEUE_STAT_TITLE("rx_bytes"),
QUEUE_STAT_TITLE("rx_dropped"),
QUEUE_STAT_TITLE("tx_packets"),
QUEUE_STAT_TITLE("tx_bytes"),
QUEUE_STAT_TITLE("tx_dropped"),
};
#define QUEUE_STATS_LEN ARRAY_SIZE(queue_statistics)
struct macb;
struct macb_queue;
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_queue *queue, struct napi_struct *napi,
int budget);
};
/* MACB-PTP interface: adapt to platform needs. */
struct macb_ptp_info {
void (*ptp_init)(struct net_device *ndev);
void (*ptp_remove)(struct net_device *ndev);
s32 (*get_ptp_max_adj)(void);
unsigned int (*get_tsu_rate)(struct macb *bp);
int (*get_ts_info)(struct net_device *dev,
struct kernel_ethtool_ts_info *info);
int (*get_hwtst)(struct net_device *netdev,
struct kernel_hwtstamp_config *tstamp_config);
int (*set_hwtst)(struct net_device *netdev,
struct kernel_hwtstamp_config *tstamp_config,
struct netlink_ext_ack *extack);
};
struct macb_pm_data {
u32 scrt2;
u32 usrio;
};
struct macb_usrio_config {
u32 mii;
u32 rmii;
u32 rgmii;
u32 refclk;
u32 hdfctlen;
};
struct macb_config {
u32 caps;
unsigned int dma_burst_length;
int (*clk_init)(struct platform_device *pdev, struct clk **pclk,
struct clk **hclk, struct clk **tx_clk,
struct clk **rx_clk, struct clk **tsu_clk);
int (*init)(struct platform_device *pdev);
unsigned int max_tx_length;
int jumbo_max_len;
const struct macb_usrio_config *usrio;
};
struct tsu_incr {
u32 sub_ns;
u32 ns;
};
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 TBQPH;
unsigned int RBQS;
unsigned int RBQP;
unsigned int RBQPH;
/* Lock to protect tx_head and tx_tail */
spinlock_t tx_ptr_lock;
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;
bool txubr_pending;
struct napi_struct napi_tx;
dma_addr_t rx_ring_dma;
dma_addr_t rx_buffers_dma;
unsigned int rx_tail;
unsigned int rx_prepared_head;
struct macb_dma_desc *rx_ring;
struct sk_buff **rx_skbuff;
void *rx_buffers;
struct napi_struct napi_rx;
struct queue_stats stats;
};
struct ethtool_rx_fs_item {
struct ethtool_rx_flow_spec fs;
struct list_head list;
};
struct ethtool_rx_fs_list {
struct list_head list;
unsigned int count;
};
struct macb {
void __iomem *regs;
bool native_io;
/* hardware IO accessors */
u32 (*macb_reg_readl)(struct macb *bp, int offset);
void (*macb_reg_writel)(struct macb *bp, int offset, u32 value);
struct macb_dma_desc *rx_ring_tieoff;
dma_addr_t rx_ring_tieoff_dma;
size_t rx_buffer_size;
unsigned int rx_ring_size;
unsigned int tx_ring_size;
unsigned int num_queues;
unsigned int queue_mask;
struct macb_queue queues[MACB_MAX_QUEUES];
spinlock_t lock;
struct platform_device *pdev;
struct clk *pclk;
struct clk *hclk;
struct clk *tx_clk;
struct clk *rx_clk;
struct clk *tsu_clk;
struct net_device *dev;
union {
struct macb_stats macb;
struct gem_stats gem;
} hw_stats;
struct macb_or_gem_ops macbgem_ops;
struct mii_bus *mii_bus;
struct phylink *phylink;
struct phylink_config phylink_config;
struct phylink_pcs phylink_usx_pcs;
struct phylink_pcs phylink_sgmii_pcs;
u32 caps;
unsigned int dma_burst_length;
phy_interface_t phy_interface;
/* AT91RM9200 transmit queue (1 on wire + 1 queued) */
struct macb_tx_skb rm9200_txq[2];
unsigned int max_tx_length;
u64 ethtool_stats[GEM_STATS_LEN + QUEUE_STATS_LEN * MACB_MAX_QUEUES];
unsigned int rx_frm_len_mask;
unsigned int jumbo_max_len;
u32 wol;
u32 wolopts;
/* holds value of rx watermark value for pbuf_rxcutthru register */
u32 rx_watermark;
struct macb_ptp_info *ptp_info; /* macb-ptp interface */
struct phy *sgmii_phy; /* for ZynqMP SGMII mode */
#ifdef MACB_EXT_DESC
uint8_t hw_dma_cap;
#endif
spinlock_t tsu_clk_lock; /* gem tsu clock locking */
unsigned int tsu_rate;
struct ptp_clock *ptp_clock;
struct ptp_clock_info ptp_clock_info;
struct tsu_incr tsu_incr;
struct kernel_hwtstamp_config tstamp_config;
/* RX queue filer rule set*/
struct ethtool_rx_fs_list rx_fs_list;
spinlock_t rx_fs_lock;
unsigned int max_tuples;
struct work_struct hresp_err_bh_work;
int rx_bd_rd_prefetch;
int tx_bd_rd_prefetch;
u32 rx_intr_mask;
struct macb_pm_data pm_data;
const struct macb_usrio_config *usrio;
};
#ifdef CONFIG_MACB_USE_HWSTAMP
#define GEM_TSEC_SIZE (GEM_TSH_SIZE + GEM_TSL_SIZE)
#define TSU_SEC_MAX_VAL (((u64)1 << GEM_TSEC_SIZE) - 1)
#define TSU_NSEC_MAX_VAL ((1 << GEM_TN_SIZE) - 1)
enum macb_bd_control {
TSTAMP_DISABLED,
TSTAMP_FRAME_PTP_EVENT_ONLY,
TSTAMP_ALL_PTP_FRAMES,
TSTAMP_ALL_FRAMES,
};
void gem_ptp_init(struct net_device *ndev);
void gem_ptp_remove(struct net_device *ndev);
void gem_ptp_txstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc);
void gem_ptp_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc);
static inline void gem_ptp_do_txstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc)
{
if (bp->tstamp_config.tx_type == TSTAMP_DISABLED)
return;
gem_ptp_txstamp(bp, skb, desc);
}
static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc)
{
if (bp->tstamp_config.rx_filter == TSTAMP_DISABLED)
return;
gem_ptp_rxstamp(bp, skb, desc);
}
int gem_get_hwtst(struct net_device *dev,
struct kernel_hwtstamp_config *tstamp_config);
int gem_set_hwtst(struct net_device *dev,
struct kernel_hwtstamp_config *tstamp_config,
struct netlink_ext_ack *extack);
#else
static inline void gem_ptp_init(struct net_device *ndev) { }
static inline void gem_ptp_remove(struct net_device *ndev) { }
static inline void gem_ptp_do_txstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc) { }
static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc) { }
#endif
static inline bool macb_is_gem(struct macb *bp)
{
return !!(bp->caps & MACB_CAPS_MACB_IS_GEM);
}
static inline bool gem_has_ptp(struct macb *bp)
{
return IS_ENABLED(CONFIG_MACB_USE_HWSTAMP) && (bp->caps & MACB_CAPS_GEM_HAS_PTP);
}
/**
* struct macb_platform_data - platform data for MACB Ethernet used for PCI registration
* @pclk: platform clock
* @hclk: AHB clock
*/
struct macb_platform_data {
struct clk *pclk;
struct clk *hclk;
};
#endif /* _MACB_H */
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