738 lines
21 KiB
C
738 lines
21 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2014-2017 Broadcom
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*/
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#ifndef __BCMGENET_H__
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#define __BCMGENET_H__
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/spinlock.h>
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#include <linux/clk.h>
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#include <linux/mii.h>
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#include <linux/if_vlan.h>
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#include <linux/phy.h>
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#include <linux/dim.h>
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/* total number of Buffer Descriptors, same for Rx/Tx */
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#define TOTAL_DESC 256
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/* which ring is descriptor based */
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#define DESC_INDEX 16
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/* Body(1500) + EH_SIZE(14) + VLANTAG(4) + BRCMTAG(6) + FCS(4) = 1528.
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* 1536 is multiple of 256 bytes
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*/
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#define ENET_BRCM_TAG_LEN 6
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#define ENET_PAD 8
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#define ENET_MAX_MTU_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN + \
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ENET_BRCM_TAG_LEN + ETH_FCS_LEN + ENET_PAD)
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#define DMA_MAX_BURST_LENGTH 0x10
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/* misc. configuration */
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#define CLEAR_ALL_HFB 0xFF
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#define DMA_FC_THRESH_HI (TOTAL_DESC >> 4)
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#define DMA_FC_THRESH_LO 5
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/* 64B receive/transmit status block */
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struct status_64 {
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u32 length_status; /* length and peripheral status */
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u32 ext_status; /* Extended status*/
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u32 rx_csum; /* partial rx checksum */
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u32 unused1[9]; /* unused */
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u32 tx_csum_info; /* Tx checksum info. */
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u32 unused2[3]; /* unused */
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};
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/* Rx status bits */
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#define STATUS_RX_EXT_MASK 0x1FFFFF
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#define STATUS_RX_CSUM_MASK 0xFFFF
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#define STATUS_RX_CSUM_OK 0x10000
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#define STATUS_RX_CSUM_FR 0x20000
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#define STATUS_RX_PROTO_TCP 0
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#define STATUS_RX_PROTO_UDP 1
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#define STATUS_RX_PROTO_ICMP 2
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#define STATUS_RX_PROTO_OTHER 3
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#define STATUS_RX_PROTO_MASK 3
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#define STATUS_RX_PROTO_SHIFT 18
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#define STATUS_FILTER_INDEX_MASK 0xFFFF
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/* Tx status bits */
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#define STATUS_TX_CSUM_START_MASK 0X7FFF
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#define STATUS_TX_CSUM_START_SHIFT 16
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#define STATUS_TX_CSUM_PROTO_UDP 0x8000
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#define STATUS_TX_CSUM_OFFSET_MASK 0x7FFF
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#define STATUS_TX_CSUM_LV 0x80000000
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/* DMA Descriptor */
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#define DMA_DESC_LENGTH_STATUS 0x00 /* in bytes of data in buffer */
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#define DMA_DESC_ADDRESS_LO 0x04 /* lower bits of PA */
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#define DMA_DESC_ADDRESS_HI 0x08 /* upper 32 bits of PA, GENETv4+ */
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/* Rx/Tx common counter group */
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struct bcmgenet_pkt_counters {
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u32 cnt_64; /* RO Received/Transmited 64 bytes packet */
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u32 cnt_127; /* RO Rx/Tx 127 bytes packet */
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u32 cnt_255; /* RO Rx/Tx 65-255 bytes packet */
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u32 cnt_511; /* RO Rx/Tx 256-511 bytes packet */
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u32 cnt_1023; /* RO Rx/Tx 512-1023 bytes packet */
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u32 cnt_1518; /* RO Rx/Tx 1024-1518 bytes packet */
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u32 cnt_mgv; /* RO Rx/Tx 1519-1522 good VLAN packet */
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u32 cnt_2047; /* RO Rx/Tx 1522-2047 bytes packet*/
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u32 cnt_4095; /* RO Rx/Tx 2048-4095 bytes packet*/
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u32 cnt_9216; /* RO Rx/Tx 4096-9216 bytes packet*/
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};
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/* RSV, Receive Status Vector */
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struct bcmgenet_rx_counters {
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struct bcmgenet_pkt_counters pkt_cnt;
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u32 pkt; /* RO (0x428) Received pkt count*/
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u32 bytes; /* RO Received byte count */
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u32 mca; /* RO # of Received multicast pkt */
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u32 bca; /* RO # of Receive broadcast pkt */
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u32 fcs; /* RO # of Received FCS error */
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u32 cf; /* RO # of Received control frame pkt*/
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u32 pf; /* RO # of Received pause frame pkt */
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u32 uo; /* RO # of unknown op code pkt */
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u32 aln; /* RO # of alignment error count */
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u32 flr; /* RO # of frame length out of range count */
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u32 cde; /* RO # of code error pkt */
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u32 fcr; /* RO # of carrier sense error pkt */
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u32 ovr; /* RO # of oversize pkt*/
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u32 jbr; /* RO # of jabber count */
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u32 mtue; /* RO # of MTU error pkt*/
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u32 pok; /* RO # of Received good pkt */
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u32 uc; /* RO # of unicast pkt */
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u32 ppp; /* RO # of PPP pkt */
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u32 rcrc; /* RO (0x470),# of CRC match pkt */
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};
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/* TSV, Transmit Status Vector */
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struct bcmgenet_tx_counters {
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struct bcmgenet_pkt_counters pkt_cnt;
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u32 pkts; /* RO (0x4a8) Transmited pkt */
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u32 mca; /* RO # of xmited multicast pkt */
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u32 bca; /* RO # of xmited broadcast pkt */
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u32 pf; /* RO # of xmited pause frame count */
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u32 cf; /* RO # of xmited control frame count */
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u32 fcs; /* RO # of xmited FCS error count */
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u32 ovr; /* RO # of xmited oversize pkt */
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u32 drf; /* RO # of xmited deferral pkt */
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u32 edf; /* RO # of xmited Excessive deferral pkt*/
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u32 scl; /* RO # of xmited single collision pkt */
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u32 mcl; /* RO # of xmited multiple collision pkt*/
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u32 lcl; /* RO # of xmited late collision pkt */
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u32 ecl; /* RO # of xmited excessive collision pkt*/
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u32 frg; /* RO # of xmited fragments pkt*/
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u32 ncl; /* RO # of xmited total collision count */
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u32 jbr; /* RO # of xmited jabber count*/
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u32 bytes; /* RO # of xmited byte count */
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u32 pok; /* RO # of xmited good pkt */
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u32 uc; /* RO (0x0x4f0)# of xmited unitcast pkt */
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};
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struct bcmgenet_mib_counters {
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struct bcmgenet_rx_counters rx;
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struct bcmgenet_tx_counters tx;
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u32 rx_runt_cnt;
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u32 rx_runt_fcs;
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u32 rx_runt_fcs_align;
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u32 rx_runt_bytes;
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u32 rbuf_ovflow_cnt;
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u32 rbuf_err_cnt;
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u32 mdf_err_cnt;
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u32 alloc_rx_buff_failed;
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u32 rx_dma_failed;
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u32 tx_dma_failed;
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};
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#define UMAC_HD_BKP_CTRL 0x004
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#define HD_FC_EN (1 << 0)
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#define HD_FC_BKOFF_OK (1 << 1)
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#define IPG_CONFIG_RX_SHIFT 2
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#define IPG_CONFIG_RX_MASK 0x1F
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#define UMAC_CMD 0x008
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#define CMD_TX_EN (1 << 0)
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#define CMD_RX_EN (1 << 1)
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#define UMAC_SPEED_10 0
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#define UMAC_SPEED_100 1
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#define UMAC_SPEED_1000 2
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#define UMAC_SPEED_2500 3
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#define CMD_SPEED_SHIFT 2
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#define CMD_SPEED_MASK 3
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#define CMD_PROMISC (1 << 4)
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#define CMD_PAD_EN (1 << 5)
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#define CMD_CRC_FWD (1 << 6)
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#define CMD_PAUSE_FWD (1 << 7)
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#define CMD_RX_PAUSE_IGNORE (1 << 8)
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#define CMD_TX_ADDR_INS (1 << 9)
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#define CMD_HD_EN (1 << 10)
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#define CMD_SW_RESET (1 << 13)
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#define CMD_LCL_LOOP_EN (1 << 15)
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#define CMD_AUTO_CONFIG (1 << 22)
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#define CMD_CNTL_FRM_EN (1 << 23)
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#define CMD_NO_LEN_CHK (1 << 24)
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#define CMD_RMT_LOOP_EN (1 << 25)
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#define CMD_PRBL_EN (1 << 27)
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#define CMD_TX_PAUSE_IGNORE (1 << 28)
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#define CMD_TX_RX_EN (1 << 29)
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#define CMD_RUNT_FILTER_DIS (1 << 30)
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#define UMAC_MAC0 0x00C
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#define UMAC_MAC1 0x010
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#define UMAC_MAX_FRAME_LEN 0x014
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#define UMAC_MODE 0x44
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#define MODE_LINK_STATUS (1 << 5)
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#define UMAC_EEE_CTRL 0x064
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#define EN_LPI_RX_PAUSE (1 << 0)
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#define EN_LPI_TX_PFC (1 << 1)
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#define EN_LPI_TX_PAUSE (1 << 2)
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#define EEE_EN (1 << 3)
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#define RX_FIFO_CHECK (1 << 4)
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#define EEE_TX_CLK_DIS (1 << 5)
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#define DIS_EEE_10M (1 << 6)
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#define LP_IDLE_PREDICTION_MODE (1 << 7)
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#define UMAC_EEE_LPI_TIMER 0x068
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#define UMAC_EEE_WAKE_TIMER 0x06C
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#define UMAC_EEE_REF_COUNT 0x070
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#define EEE_REFERENCE_COUNT_MASK 0xffff
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#define UMAC_TX_FLUSH 0x334
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#define UMAC_MIB_START 0x400
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#define UMAC_MDIO_CMD 0x614
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#define MDIO_START_BUSY (1 << 29)
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#define MDIO_READ_FAIL (1 << 28)
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#define MDIO_RD (2 << 26)
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#define MDIO_WR (1 << 26)
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#define MDIO_PMD_SHIFT 21
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#define MDIO_PMD_MASK 0x1F
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#define MDIO_REG_SHIFT 16
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#define MDIO_REG_MASK 0x1F
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#define UMAC_RBUF_OVFL_CNT_V1 0x61C
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#define RBUF_OVFL_CNT_V2 0x80
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#define RBUF_OVFL_CNT_V3PLUS 0x94
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#define UMAC_MPD_CTRL 0x620
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#define MPD_EN (1 << 0)
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#define MPD_PW_EN (1 << 27)
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#define MPD_MSEQ_LEN_SHIFT 16
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#define MPD_MSEQ_LEN_MASK 0xFF
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#define UMAC_MPD_PW_MS 0x624
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#define UMAC_MPD_PW_LS 0x628
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#define UMAC_RBUF_ERR_CNT_V1 0x634
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#define RBUF_ERR_CNT_V2 0x84
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#define RBUF_ERR_CNT_V3PLUS 0x98
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#define UMAC_MDF_ERR_CNT 0x638
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#define UMAC_MDF_CTRL 0x650
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#define UMAC_MDF_ADDR 0x654
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#define UMAC_MIB_CTRL 0x580
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#define MIB_RESET_RX (1 << 0)
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#define MIB_RESET_RUNT (1 << 1)
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#define MIB_RESET_TX (1 << 2)
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#define RBUF_CTRL 0x00
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#define RBUF_64B_EN (1 << 0)
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#define RBUF_ALIGN_2B (1 << 1)
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#define RBUF_BAD_DIS (1 << 2)
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#define RBUF_STATUS 0x0C
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#define RBUF_STATUS_WOL (1 << 0)
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#define RBUF_STATUS_MPD_INTR_ACTIVE (1 << 1)
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#define RBUF_STATUS_ACPI_INTR_ACTIVE (1 << 2)
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#define RBUF_CHK_CTRL 0x14
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#define RBUF_RXCHK_EN (1 << 0)
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#define RBUF_SKIP_FCS (1 << 4)
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#define RBUF_ENERGY_CTRL 0x9c
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#define RBUF_EEE_EN (1 << 0)
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#define RBUF_PM_EN (1 << 1)
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#define RBUF_TBUF_SIZE_CTRL 0xb4
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#define RBUF_HFB_CTRL_V1 0x38
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#define RBUF_HFB_FILTER_EN_SHIFT 16
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#define RBUF_HFB_FILTER_EN_MASK 0xffff0000
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#define RBUF_HFB_EN (1 << 0)
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#define RBUF_HFB_256B (1 << 1)
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#define RBUF_ACPI_EN (1 << 2)
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#define RBUF_HFB_LEN_V1 0x3C
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#define RBUF_FLTR_LEN_MASK 0xFF
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#define RBUF_FLTR_LEN_SHIFT 8
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#define TBUF_CTRL 0x00
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#define TBUF_BP_MC 0x0C
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#define TBUF_ENERGY_CTRL 0x14
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#define TBUF_EEE_EN (1 << 0)
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#define TBUF_PM_EN (1 << 1)
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#define TBUF_CTRL_V1 0x80
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#define TBUF_BP_MC_V1 0xA0
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#define HFB_CTRL 0x00
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#define HFB_FLT_ENABLE_V3PLUS 0x04
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#define HFB_FLT_LEN_V2 0x04
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#define HFB_FLT_LEN_V3PLUS 0x1C
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/* uniMac intrl2 registers */
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#define INTRL2_CPU_STAT 0x00
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#define INTRL2_CPU_SET 0x04
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#define INTRL2_CPU_CLEAR 0x08
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#define INTRL2_CPU_MASK_STATUS 0x0C
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#define INTRL2_CPU_MASK_SET 0x10
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#define INTRL2_CPU_MASK_CLEAR 0x14
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/* INTRL2 instance 0 definitions */
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#define UMAC_IRQ_SCB (1 << 0)
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#define UMAC_IRQ_EPHY (1 << 1)
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#define UMAC_IRQ_PHY_DET_R (1 << 2)
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#define UMAC_IRQ_PHY_DET_F (1 << 3)
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#define UMAC_IRQ_LINK_UP (1 << 4)
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#define UMAC_IRQ_LINK_DOWN (1 << 5)
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#define UMAC_IRQ_LINK_EVENT (UMAC_IRQ_LINK_UP | UMAC_IRQ_LINK_DOWN)
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#define UMAC_IRQ_UMAC (1 << 6)
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#define UMAC_IRQ_UMAC_TSV (1 << 7)
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#define UMAC_IRQ_TBUF_UNDERRUN (1 << 8)
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#define UMAC_IRQ_RBUF_OVERFLOW (1 << 9)
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#define UMAC_IRQ_HFB_SM (1 << 10)
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#define UMAC_IRQ_HFB_MM (1 << 11)
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#define UMAC_IRQ_MPD_R (1 << 12)
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#define UMAC_IRQ_RXDMA_MBDONE (1 << 13)
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#define UMAC_IRQ_RXDMA_PDONE (1 << 14)
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#define UMAC_IRQ_RXDMA_BDONE (1 << 15)
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#define UMAC_IRQ_RXDMA_DONE UMAC_IRQ_RXDMA_MBDONE
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#define UMAC_IRQ_TXDMA_MBDONE (1 << 16)
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#define UMAC_IRQ_TXDMA_PDONE (1 << 17)
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#define UMAC_IRQ_TXDMA_BDONE (1 << 18)
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#define UMAC_IRQ_TXDMA_DONE UMAC_IRQ_TXDMA_MBDONE
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/* Only valid for GENETv3+ */
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|
|
#define UMAC_IRQ_MDIO_DONE (1 << 23)
|
||
|
|
#define UMAC_IRQ_MDIO_ERROR (1 << 24)
|
||
|
|
|
||
|
|
/* INTRL2 instance 1 definitions */
|
||
|
|
#define UMAC_IRQ1_TX_INTR_MASK 0xFFFF
|
||
|
|
#define UMAC_IRQ1_RX_INTR_MASK 0xFFFF
|
||
|
|
#define UMAC_IRQ1_RX_INTR_SHIFT 16
|
||
|
|
|
||
|
|
/* Register block offsets */
|
||
|
|
#define GENET_SYS_OFF 0x0000
|
||
|
|
#define GENET_GR_BRIDGE_OFF 0x0040
|
||
|
|
#define GENET_EXT_OFF 0x0080
|
||
|
|
#define GENET_INTRL2_0_OFF 0x0200
|
||
|
|
#define GENET_INTRL2_1_OFF 0x0240
|
||
|
|
#define GENET_RBUF_OFF 0x0300
|
||
|
|
#define GENET_UMAC_OFF 0x0800
|
||
|
|
|
||
|
|
/* SYS block offsets and register definitions */
|
||
|
|
#define SYS_REV_CTRL 0x00
|
||
|
|
#define SYS_PORT_CTRL 0x04
|
||
|
|
#define PORT_MODE_INT_EPHY 0
|
||
|
|
#define PORT_MODE_INT_GPHY 1
|
||
|
|
#define PORT_MODE_EXT_EPHY 2
|
||
|
|
#define PORT_MODE_EXT_GPHY 3
|
||
|
|
#define PORT_MODE_EXT_RVMII_25 (4 | BIT(4))
|
||
|
|
#define PORT_MODE_EXT_RVMII_50 4
|
||
|
|
#define LED_ACT_SOURCE_MAC (1 << 9)
|
||
|
|
|
||
|
|
#define SYS_RBUF_FLUSH_CTRL 0x08
|
||
|
|
#define SYS_TBUF_FLUSH_CTRL 0x0C
|
||
|
|
#define RBUF_FLUSH_CTRL_V1 0x04
|
||
|
|
|
||
|
|
/* Ext block register offsets and definitions */
|
||
|
|
#define EXT_EXT_PWR_MGMT 0x00
|
||
|
|
#define EXT_PWR_DOWN_BIAS (1 << 0)
|
||
|
|
#define EXT_PWR_DOWN_DLL (1 << 1)
|
||
|
|
#define EXT_PWR_DOWN_PHY (1 << 2)
|
||
|
|
#define EXT_PWR_DN_EN_LD (1 << 3)
|
||
|
|
#define EXT_ENERGY_DET (1 << 4)
|
||
|
|
#define EXT_IDDQ_FROM_PHY (1 << 5)
|
||
|
|
#define EXT_IDDQ_GLBL_PWR (1 << 7)
|
||
|
|
#define EXT_PHY_RESET (1 << 8)
|
||
|
|
#define EXT_ENERGY_DET_MASK (1 << 12)
|
||
|
|
#define EXT_PWR_DOWN_PHY_TX (1 << 16)
|
||
|
|
#define EXT_PWR_DOWN_PHY_RX (1 << 17)
|
||
|
|
#define EXT_PWR_DOWN_PHY_SD (1 << 18)
|
||
|
|
#define EXT_PWR_DOWN_PHY_RD (1 << 19)
|
||
|
|
#define EXT_PWR_DOWN_PHY_EN (1 << 20)
|
||
|
|
|
||
|
|
#define EXT_RGMII_OOB_CTRL 0x0C
|
||
|
|
#define RGMII_MODE_EN_V123 (1 << 0)
|
||
|
|
#define RGMII_LINK (1 << 4)
|
||
|
|
#define OOB_DISABLE (1 << 5)
|
||
|
|
#define RGMII_MODE_EN (1 << 6)
|
||
|
|
#define ID_MODE_DIS (1 << 16)
|
||
|
|
|
||
|
|
#define EXT_GPHY_CTRL 0x1C
|
||
|
|
#define EXT_CFG_IDDQ_BIAS (1 << 0)
|
||
|
|
#define EXT_CFG_PWR_DOWN (1 << 1)
|
||
|
|
#define EXT_CK25_DIS (1 << 4)
|
||
|
|
#define EXT_GPHY_RESET (1 << 5)
|
||
|
|
|
||
|
|
/* DMA rings size */
|
||
|
|
#define DMA_RING_SIZE (0x40)
|
||
|
|
#define DMA_RINGS_SIZE (DMA_RING_SIZE * (DESC_INDEX + 1))
|
||
|
|
|
||
|
|
/* DMA registers common definitions */
|
||
|
|
#define DMA_RW_POINTER_MASK 0x1FF
|
||
|
|
#define DMA_P_INDEX_DISCARD_CNT_MASK 0xFFFF
|
||
|
|
#define DMA_P_INDEX_DISCARD_CNT_SHIFT 16
|
||
|
|
#define DMA_BUFFER_DONE_CNT_MASK 0xFFFF
|
||
|
|
#define DMA_BUFFER_DONE_CNT_SHIFT 16
|
||
|
|
#define DMA_P_INDEX_MASK 0xFFFF
|
||
|
|
#define DMA_C_INDEX_MASK 0xFFFF
|
||
|
|
|
||
|
|
/* DMA ring size register */
|
||
|
|
#define DMA_RING_SIZE_MASK 0xFFFF
|
||
|
|
#define DMA_RING_SIZE_SHIFT 16
|
||
|
|
#define DMA_RING_BUFFER_SIZE_MASK 0xFFFF
|
||
|
|
|
||
|
|
/* DMA interrupt threshold register */
|
||
|
|
#define DMA_INTR_THRESHOLD_MASK 0x01FF
|
||
|
|
|
||
|
|
/* DMA XON/XOFF register */
|
||
|
|
#define DMA_XON_THREHOLD_MASK 0xFFFF
|
||
|
|
#define DMA_XOFF_THRESHOLD_MASK 0xFFFF
|
||
|
|
#define DMA_XOFF_THRESHOLD_SHIFT 16
|
||
|
|
|
||
|
|
/* DMA flow period register */
|
||
|
|
#define DMA_FLOW_PERIOD_MASK 0xFFFF
|
||
|
|
#define DMA_MAX_PKT_SIZE_MASK 0xFFFF
|
||
|
|
#define DMA_MAX_PKT_SIZE_SHIFT 16
|
||
|
|
|
||
|
|
|
||
|
|
/* DMA control register */
|
||
|
|
#define DMA_EN (1 << 0)
|
||
|
|
#define DMA_RING_BUF_EN_SHIFT 0x01
|
||
|
|
#define DMA_RING_BUF_EN_MASK 0xFFFF
|
||
|
|
#define DMA_TSB_SWAP_EN (1 << 20)
|
||
|
|
|
||
|
|
/* DMA status register */
|
||
|
|
#define DMA_DISABLED (1 << 0)
|
||
|
|
#define DMA_DESC_RAM_INIT_BUSY (1 << 1)
|
||
|
|
|
||
|
|
/* DMA SCB burst size register */
|
||
|
|
#define DMA_SCB_BURST_SIZE_MASK 0x1F
|
||
|
|
|
||
|
|
/* DMA activity vector register */
|
||
|
|
#define DMA_ACTIVITY_VECTOR_MASK 0x1FFFF
|
||
|
|
|
||
|
|
/* DMA backpressure mask register */
|
||
|
|
#define DMA_BACKPRESSURE_MASK 0x1FFFF
|
||
|
|
#define DMA_PFC_ENABLE (1 << 31)
|
||
|
|
|
||
|
|
/* DMA backpressure status register */
|
||
|
|
#define DMA_BACKPRESSURE_STATUS_MASK 0x1FFFF
|
||
|
|
|
||
|
|
/* DMA override register */
|
||
|
|
#define DMA_LITTLE_ENDIAN_MODE (1 << 0)
|
||
|
|
#define DMA_REGISTER_MODE (1 << 1)
|
||
|
|
|
||
|
|
/* DMA timeout register */
|
||
|
|
#define DMA_TIMEOUT_MASK 0xFFFF
|
||
|
|
#define DMA_TIMEOUT_VAL 5000 /* micro seconds */
|
||
|
|
|
||
|
|
/* TDMA rate limiting control register */
|
||
|
|
#define DMA_RATE_LIMIT_EN_MASK 0xFFFF
|
||
|
|
|
||
|
|
/* TDMA arbitration control register */
|
||
|
|
#define DMA_ARBITER_MODE_MASK 0x03
|
||
|
|
#define DMA_RING_BUF_PRIORITY_MASK 0x1F
|
||
|
|
#define DMA_RING_BUF_PRIORITY_SHIFT 5
|
||
|
|
#define DMA_PRIO_REG_INDEX(q) ((q) / 6)
|
||
|
|
#define DMA_PRIO_REG_SHIFT(q) (((q) % 6) * DMA_RING_BUF_PRIORITY_SHIFT)
|
||
|
|
#define DMA_RATE_ADJ_MASK 0xFF
|
||
|
|
|
||
|
|
/* Tx/Rx Dma Descriptor common bits*/
|
||
|
|
#define DMA_BUFLENGTH_MASK 0x0fff
|
||
|
|
#define DMA_BUFLENGTH_SHIFT 16
|
||
|
|
#define DMA_OWN 0x8000
|
||
|
|
#define DMA_EOP 0x4000
|
||
|
|
#define DMA_SOP 0x2000
|
||
|
|
#define DMA_WRAP 0x1000
|
||
|
|
/* Tx specific Dma descriptor bits */
|
||
|
|
#define DMA_TX_UNDERRUN 0x0200
|
||
|
|
#define DMA_TX_APPEND_CRC 0x0040
|
||
|
|
#define DMA_TX_OW_CRC 0x0020
|
||
|
|
#define DMA_TX_DO_CSUM 0x0010
|
||
|
|
#define DMA_TX_QTAG_SHIFT 7
|
||
|
|
|
||
|
|
/* Rx Specific Dma descriptor bits */
|
||
|
|
#define DMA_RX_CHK_V3PLUS 0x8000
|
||
|
|
#define DMA_RX_CHK_V12 0x1000
|
||
|
|
#define DMA_RX_BRDCAST 0x0040
|
||
|
|
#define DMA_RX_MULT 0x0020
|
||
|
|
#define DMA_RX_LG 0x0010
|
||
|
|
#define DMA_RX_NO 0x0008
|
||
|
|
#define DMA_RX_RXER 0x0004
|
||
|
|
#define DMA_RX_CRC_ERROR 0x0002
|
||
|
|
#define DMA_RX_OV 0x0001
|
||
|
|
#define DMA_RX_FI_MASK 0x001F
|
||
|
|
#define DMA_RX_FI_SHIFT 0x0007
|
||
|
|
#define DMA_DESC_ALLOC_MASK 0x00FF
|
||
|
|
|
||
|
|
#define DMA_ARBITER_RR 0x00
|
||
|
|
#define DMA_ARBITER_WRR 0x01
|
||
|
|
#define DMA_ARBITER_SP 0x02
|
||
|
|
|
||
|
|
struct enet_cb {
|
||
|
|
struct sk_buff *skb;
|
||
|
|
void __iomem *bd_addr;
|
||
|
|
DEFINE_DMA_UNMAP_ADDR(dma_addr);
|
||
|
|
DEFINE_DMA_UNMAP_LEN(dma_len);
|
||
|
|
};
|
||
|
|
|
||
|
|
/* power management mode */
|
||
|
|
enum bcmgenet_power_mode {
|
||
|
|
GENET_POWER_CABLE_SENSE = 0,
|
||
|
|
GENET_POWER_PASSIVE,
|
||
|
|
GENET_POWER_WOL_MAGIC,
|
||
|
|
};
|
||
|
|
|
||
|
|
struct bcmgenet_priv;
|
||
|
|
|
||
|
|
/* We support both runtime GENET detection and compile-time
|
||
|
|
* to optimize code-paths for a given hardware
|
||
|
|
*/
|
||
|
|
enum bcmgenet_version {
|
||
|
|
GENET_V1 = 1,
|
||
|
|
GENET_V2,
|
||
|
|
GENET_V3,
|
||
|
|
GENET_V4,
|
||
|
|
GENET_V5
|
||
|
|
};
|
||
|
|
|
||
|
|
#define GENET_IS_V1(p) ((p)->version == GENET_V1)
|
||
|
|
#define GENET_IS_V2(p) ((p)->version == GENET_V2)
|
||
|
|
#define GENET_IS_V3(p) ((p)->version == GENET_V3)
|
||
|
|
#define GENET_IS_V4(p) ((p)->version == GENET_V4)
|
||
|
|
#define GENET_IS_V5(p) ((p)->version == GENET_V5)
|
||
|
|
|
||
|
|
/* Hardware flags */
|
||
|
|
#define GENET_HAS_40BITS (1 << 0)
|
||
|
|
#define GENET_HAS_EXT (1 << 1)
|
||
|
|
#define GENET_HAS_MDIO_INTR (1 << 2)
|
||
|
|
#define GENET_HAS_MOCA_LINK_DET (1 << 3)
|
||
|
|
|
||
|
|
/* BCMGENET hardware parameters, keep this structure nicely aligned
|
||
|
|
* since it is going to be used in hot paths
|
||
|
|
*/
|
||
|
|
struct bcmgenet_hw_params {
|
||
|
|
u8 tx_queues;
|
||
|
|
u8 tx_bds_per_q;
|
||
|
|
u8 rx_queues;
|
||
|
|
u8 rx_bds_per_q;
|
||
|
|
u8 bp_in_en_shift;
|
||
|
|
u32 bp_in_mask;
|
||
|
|
u8 hfb_filter_cnt;
|
||
|
|
u8 hfb_filter_size;
|
||
|
|
u8 qtag_mask;
|
||
|
|
u16 tbuf_offset;
|
||
|
|
u32 hfb_offset;
|
||
|
|
u32 hfb_reg_offset;
|
||
|
|
u32 rdma_offset;
|
||
|
|
u32 tdma_offset;
|
||
|
|
u32 words_per_bd;
|
||
|
|
u32 flags;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct bcmgenet_skb_cb {
|
||
|
|
struct enet_cb *first_cb; /* First control block of SKB */
|
||
|
|
struct enet_cb *last_cb; /* Last control block of SKB */
|
||
|
|
unsigned int bytes_sent; /* bytes on the wire (no TSB) */
|
||
|
|
};
|
||
|
|
|
||
|
|
#define GENET_CB(skb) ((struct bcmgenet_skb_cb *)((skb)->cb))
|
||
|
|
|
||
|
|
struct bcmgenet_tx_ring {
|
||
|
|
spinlock_t lock; /* ring lock */
|
||
|
|
struct napi_struct napi; /* NAPI per tx queue */
|
||
|
|
unsigned long packets;
|
||
|
|
unsigned long bytes;
|
||
|
|
unsigned int index; /* ring index */
|
||
|
|
unsigned int queue; /* queue index */
|
||
|
|
struct enet_cb *cbs; /* tx ring buffer control block*/
|
||
|
|
unsigned int size; /* size of each tx ring */
|
||
|
|
unsigned int clean_ptr; /* Tx ring clean pointer */
|
||
|
|
unsigned int c_index; /* last consumer index of each ring*/
|
||
|
|
unsigned int free_bds; /* # of free bds for each ring */
|
||
|
|
unsigned int write_ptr; /* Tx ring write pointer SW copy */
|
||
|
|
unsigned int prod_index; /* Tx ring producer index SW copy */
|
||
|
|
unsigned int cb_ptr; /* Tx ring initial CB ptr */
|
||
|
|
unsigned int end_ptr; /* Tx ring end CB ptr */
|
||
|
|
void (*int_enable)(struct bcmgenet_tx_ring *);
|
||
|
|
void (*int_disable)(struct bcmgenet_tx_ring *);
|
||
|
|
struct bcmgenet_priv *priv;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct bcmgenet_net_dim {
|
||
|
|
u16 use_dim;
|
||
|
|
u16 event_ctr;
|
||
|
|
unsigned long packets;
|
||
|
|
unsigned long bytes;
|
||
|
|
struct dim dim;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct bcmgenet_rx_ring {
|
||
|
|
struct napi_struct napi; /* Rx NAPI struct */
|
||
|
|
unsigned long bytes;
|
||
|
|
unsigned long packets;
|
||
|
|
unsigned long errors;
|
||
|
|
unsigned long dropped;
|
||
|
|
unsigned int index; /* Rx ring index */
|
||
|
|
struct enet_cb *cbs; /* Rx ring buffer control block */
|
||
|
|
unsigned int size; /* Rx ring size */
|
||
|
|
unsigned int c_index; /* Rx last consumer index */
|
||
|
|
unsigned int read_ptr; /* Rx ring read pointer */
|
||
|
|
unsigned int cb_ptr; /* Rx ring initial CB ptr */
|
||
|
|
unsigned int end_ptr; /* Rx ring end CB ptr */
|
||
|
|
unsigned int old_discards;
|
||
|
|
struct bcmgenet_net_dim dim;
|
||
|
|
u32 rx_max_coalesced_frames;
|
||
|
|
u32 rx_coalesce_usecs;
|
||
|
|
void (*int_enable)(struct bcmgenet_rx_ring *);
|
||
|
|
void (*int_disable)(struct bcmgenet_rx_ring *);
|
||
|
|
struct bcmgenet_priv *priv;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* device context */
|
||
|
|
struct bcmgenet_priv {
|
||
|
|
void __iomem *base;
|
||
|
|
enum bcmgenet_version version;
|
||
|
|
struct net_device *dev;
|
||
|
|
|
||
|
|
/* transmit variables */
|
||
|
|
void __iomem *tx_bds;
|
||
|
|
struct enet_cb *tx_cbs;
|
||
|
|
unsigned int num_tx_bds;
|
||
|
|
|
||
|
|
struct bcmgenet_tx_ring tx_rings[DESC_INDEX + 1];
|
||
|
|
|
||
|
|
/* receive variables */
|
||
|
|
void __iomem *rx_bds;
|
||
|
|
struct enet_cb *rx_cbs;
|
||
|
|
unsigned int num_rx_bds;
|
||
|
|
unsigned int rx_buf_len;
|
||
|
|
|
||
|
|
struct bcmgenet_rx_ring rx_rings[DESC_INDEX + 1];
|
||
|
|
|
||
|
|
/* other misc variables */
|
||
|
|
struct bcmgenet_hw_params *hw_params;
|
||
|
|
|
||
|
|
/* MDIO bus variables */
|
||
|
|
wait_queue_head_t wq;
|
||
|
|
bool internal_phy;
|
||
|
|
struct device_node *phy_dn;
|
||
|
|
struct device_node *mdio_dn;
|
||
|
|
struct mii_bus *mii_bus;
|
||
|
|
u16 gphy_rev;
|
||
|
|
struct clk *clk_eee;
|
||
|
|
bool clk_eee_enabled;
|
||
|
|
|
||
|
|
/* PHY device variables */
|
||
|
|
int old_link;
|
||
|
|
int old_speed;
|
||
|
|
int old_duplex;
|
||
|
|
int old_pause;
|
||
|
|
phy_interface_t phy_interface;
|
||
|
|
int phy_addr;
|
||
|
|
int ext_phy;
|
||
|
|
|
||
|
|
/* Interrupt variables */
|
||
|
|
struct work_struct bcmgenet_irq_work;
|
||
|
|
int irq0;
|
||
|
|
int irq1;
|
||
|
|
int wol_irq;
|
||
|
|
bool wol_irq_disabled;
|
||
|
|
|
||
|
|
/* shared status */
|
||
|
|
spinlock_t lock;
|
||
|
|
unsigned int irq0_stat;
|
||
|
|
|
||
|
|
/* HW descriptors/checksum variables */
|
||
|
|
bool desc_64b_en;
|
||
|
|
bool desc_rxchk_en;
|
||
|
|
bool crc_fwd_en;
|
||
|
|
|
||
|
|
unsigned int dma_rx_chk_bit;
|
||
|
|
|
||
|
|
u32 msg_enable;
|
||
|
|
|
||
|
|
struct clk *clk;
|
||
|
|
struct platform_device *pdev;
|
||
|
|
struct platform_device *mii_pdev;
|
||
|
|
|
||
|
|
/* WOL */
|
||
|
|
struct clk *clk_wol;
|
||
|
|
u32 wolopts;
|
||
|
|
|
||
|
|
struct bcmgenet_mib_counters mib;
|
||
|
|
|
||
|
|
struct ethtool_eee eee;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define GENET_IO_MACRO(name, offset) \
|
||
|
|
static inline u32 bcmgenet_##name##_readl(struct bcmgenet_priv *priv, \
|
||
|
|
u32 off) \
|
||
|
|
{ \
|
||
|
|
/* MIPS chips strapped for BE will automagically configure the \
|
||
|
|
* peripheral registers for CPU-native byte order. \
|
||
|
|
*/ \
|
||
|
|
if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) \
|
||
|
|
return __raw_readl(priv->base + offset + off); \
|
||
|
|
else \
|
||
|
|
return readl_relaxed(priv->base + offset + off); \
|
||
|
|
} \
|
||
|
|
static inline void bcmgenet_##name##_writel(struct bcmgenet_priv *priv, \
|
||
|
|
u32 val, u32 off) \
|
||
|
|
{ \
|
||
|
|
if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) \
|
||
|
|
__raw_writel(val, priv->base + offset + off); \
|
||
|
|
else \
|
||
|
|
writel_relaxed(val, priv->base + offset + off); \
|
||
|
|
}
|
||
|
|
|
||
|
|
GENET_IO_MACRO(ext, GENET_EXT_OFF);
|
||
|
|
GENET_IO_MACRO(umac, GENET_UMAC_OFF);
|
||
|
|
GENET_IO_MACRO(sys, GENET_SYS_OFF);
|
||
|
|
|
||
|
|
/* interrupt l2 registers accessors */
|
||
|
|
GENET_IO_MACRO(intrl2_0, GENET_INTRL2_0_OFF);
|
||
|
|
GENET_IO_MACRO(intrl2_1, GENET_INTRL2_1_OFF);
|
||
|
|
|
||
|
|
/* HFB register accessors */
|
||
|
|
GENET_IO_MACRO(hfb, priv->hw_params->hfb_offset);
|
||
|
|
|
||
|
|
/* GENET v2+ HFB control and filter len helpers */
|
||
|
|
GENET_IO_MACRO(hfb_reg, priv->hw_params->hfb_reg_offset);
|
||
|
|
|
||
|
|
/* RBUF register accessors */
|
||
|
|
GENET_IO_MACRO(rbuf, GENET_RBUF_OFF);
|
||
|
|
|
||
|
|
/* MDIO routines */
|
||
|
|
int bcmgenet_mii_init(struct net_device *dev);
|
||
|
|
int bcmgenet_mii_config(struct net_device *dev, bool init);
|
||
|
|
int bcmgenet_mii_probe(struct net_device *dev);
|
||
|
|
void bcmgenet_mii_exit(struct net_device *dev);
|
||
|
|
void bcmgenet_phy_power_set(struct net_device *dev, bool enable);
|
||
|
|
void bcmgenet_mii_setup(struct net_device *dev);
|
||
|
|
|
||
|
|
/* Wake-on-LAN routines */
|
||
|
|
void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol);
|
||
|
|
int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol);
|
||
|
|
int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
|
||
|
|
enum bcmgenet_power_mode mode);
|
||
|
|
void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv,
|
||
|
|
enum bcmgenet_power_mode mode);
|
||
|
|
|
||
|
|
#endif /* __BCMGENET_H__ */
|