537 lines
15 KiB
C
537 lines
15 KiB
C
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/* 10G controller driver for Samsung SoCs
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*
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* Copyright (C) 2013 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Author: Siva Reddy Kallam <siva.kallam@samsung.com>
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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 __SXGBE_COMMON_H__
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#define __SXGBE_COMMON_H__
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/* forward references */
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struct sxgbe_desc_ops;
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struct sxgbe_dma_ops;
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struct sxgbe_mtl_ops;
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#define SXGBE_RESOURCE_NAME "sam_sxgbeeth"
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#define DRV_MODULE_VERSION "November_2013"
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/* MAX HW feature words */
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#define SXGBE_HW_WORDS 3
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#define SXGBE_RX_COE_NONE 0
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/* CSR Frequency Access Defines*/
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#define SXGBE_CSR_F_150M 150000000
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#define SXGBE_CSR_F_250M 250000000
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#define SXGBE_CSR_F_300M 300000000
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#define SXGBE_CSR_F_350M 350000000
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#define SXGBE_CSR_F_400M 400000000
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#define SXGBE_CSR_F_500M 500000000
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/* pause time */
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#define SXGBE_PAUSE_TIME 0x200
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/* tx queues */
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#define SXGBE_TX_QUEUES 8
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#define SXGBE_RX_QUEUES 16
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/* Calculated based how much time does it take to fill 256KB Rx memory
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* at 10Gb speed at 156MHz clock rate and considered little less then
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* the actual value.
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*/
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#define SXGBE_MAX_DMA_RIWT 0x70
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#define SXGBE_MIN_DMA_RIWT 0x01
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/* Tx coalesce parameters */
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#define SXGBE_COAL_TX_TIMER 40000
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#define SXGBE_MAX_COAL_TX_TICK 100000
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#define SXGBE_TX_MAX_FRAMES 512
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#define SXGBE_TX_FRAMES 128
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/* SXGBE TX FIFO is 8K, Rx FIFO is 16K */
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#define BUF_SIZE_16KiB 16384
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#define BUF_SIZE_8KiB 8192
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#define BUF_SIZE_4KiB 4096
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#define BUF_SIZE_2KiB 2048
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#define SXGBE_DEFAULT_LIT_LS 0x3E8
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#define SXGBE_DEFAULT_TWT_LS 0x0
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/* Flow Control defines */
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#define SXGBE_FLOW_OFF 0
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#define SXGBE_FLOW_RX 1
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#define SXGBE_FLOW_TX 2
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#define SXGBE_FLOW_AUTO (SXGBE_FLOW_TX | SXGBE_FLOW_RX)
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#define SF_DMA_MODE 1 /* DMA STORE-AND-FORWARD Operation Mode */
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/* errors */
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#define RX_GMII_ERR 0x01
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#define RX_WATCHDOG_ERR 0x02
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#define RX_CRC_ERR 0x03
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#define RX_GAINT_ERR 0x04
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#define RX_IP_HDR_ERR 0x05
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#define RX_PAYLOAD_ERR 0x06
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#define RX_OVERFLOW_ERR 0x07
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/* pkt type */
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#define RX_LEN_PKT 0x00
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#define RX_MACCTL_PKT 0x01
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#define RX_DCBCTL_PKT 0x02
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#define RX_ARP_PKT 0x03
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#define RX_OAM_PKT 0x04
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#define RX_UNTAG_PKT 0x05
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#define RX_OTHER_PKT 0x07
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#define RX_SVLAN_PKT 0x08
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#define RX_CVLAN_PKT 0x09
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#define RX_DVLAN_OCVLAN_ICVLAN_PKT 0x0A
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#define RX_DVLAN_OSVLAN_ISVLAN_PKT 0x0B
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#define RX_DVLAN_OSVLAN_ICVLAN_PKT 0x0C
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#define RX_DVLAN_OCVLAN_ISVLAN_PKT 0x0D
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#define RX_NOT_IP_PKT 0x00
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#define RX_IPV4_TCP_PKT 0x01
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#define RX_IPV4_UDP_PKT 0x02
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#define RX_IPV4_ICMP_PKT 0x03
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#define RX_IPV4_UNKNOWN_PKT 0x07
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#define RX_IPV6_TCP_PKT 0x09
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#define RX_IPV6_UDP_PKT 0x0A
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#define RX_IPV6_ICMP_PKT 0x0B
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#define RX_IPV6_UNKNOWN_PKT 0x0F
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#define RX_NO_PTP 0x00
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#define RX_PTP_SYNC 0x01
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#define RX_PTP_FOLLOW_UP 0x02
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#define RX_PTP_DELAY_REQ 0x03
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#define RX_PTP_DELAY_RESP 0x04
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#define RX_PTP_PDELAY_REQ 0x05
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#define RX_PTP_PDELAY_RESP 0x06
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#define RX_PTP_PDELAY_FOLLOW_UP 0x07
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#define RX_PTP_ANNOUNCE 0x08
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#define RX_PTP_MGMT 0x09
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#define RX_PTP_SIGNAL 0x0A
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#define RX_PTP_RESV_MSG 0x0F
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/* EEE-LPI mode flags*/
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#define TX_ENTRY_LPI_MODE 0x10
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#define TX_EXIT_LPI_MODE 0x20
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#define RX_ENTRY_LPI_MODE 0x40
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#define RX_EXIT_LPI_MODE 0x80
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/* EEE-LPI Interrupt status flag */
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#define LPI_INT_STATUS BIT(5)
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/* EEE-LPI Default timer values */
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#define LPI_LINK_STATUS_TIMER 0x3E8
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#define LPI_MAC_WAIT_TIMER 0x00
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/* EEE-LPI Control and status definitions */
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#define LPI_CTRL_STATUS_TXA BIT(19)
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#define LPI_CTRL_STATUS_PLSDIS BIT(18)
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#define LPI_CTRL_STATUS_PLS BIT(17)
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#define LPI_CTRL_STATUS_LPIEN BIT(16)
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#define LPI_CTRL_STATUS_TXRSTP BIT(11)
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#define LPI_CTRL_STATUS_RXRSTP BIT(10)
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#define LPI_CTRL_STATUS_RLPIST BIT(9)
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#define LPI_CTRL_STATUS_TLPIST BIT(8)
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#define LPI_CTRL_STATUS_RLPIEX BIT(3)
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#define LPI_CTRL_STATUS_RLPIEN BIT(2)
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#define LPI_CTRL_STATUS_TLPIEX BIT(1)
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#define LPI_CTRL_STATUS_TLPIEN BIT(0)
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enum dma_irq_status {
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tx_hard_error = BIT(0),
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tx_bump_tc = BIT(1),
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handle_tx = BIT(2),
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rx_hard_error = BIT(3),
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rx_bump_tc = BIT(4),
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handle_rx = BIT(5),
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};
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#define NETIF_F_HW_VLAN_ALL (NETIF_F_HW_VLAN_CTAG_RX | \
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NETIF_F_HW_VLAN_STAG_RX | \
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NETIF_F_HW_VLAN_CTAG_TX | \
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NETIF_F_HW_VLAN_STAG_TX | \
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NETIF_F_HW_VLAN_CTAG_FILTER | \
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NETIF_F_HW_VLAN_STAG_FILTER)
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/* MMC control defines */
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#define SXGBE_MMC_CTRL_CNT_FRZ 0x00000008
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/* SXGBE HW ADDR regs */
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#define SXGBE_ADDR_HIGH(reg) (((reg > 15) ? 0x00000800 : 0x00000040) + \
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(reg * 8))
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#define SXGBE_ADDR_LOW(reg) (((reg > 15) ? 0x00000804 : 0x00000044) + \
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(reg * 8))
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#define SXGBE_MAX_PERFECT_ADDRESSES 32 /* Maximum unicast perfect filtering */
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#define SXGBE_FRAME_FILTER 0x00000004 /* Frame Filter */
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/* SXGBE Frame Filter defines */
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#define SXGBE_FRAME_FILTER_PR 0x00000001 /* Promiscuous Mode */
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#define SXGBE_FRAME_FILTER_HUC 0x00000002 /* Hash Unicast */
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#define SXGBE_FRAME_FILTER_HMC 0x00000004 /* Hash Multicast */
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#define SXGBE_FRAME_FILTER_DAIF 0x00000008 /* DA Inverse Filtering */
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#define SXGBE_FRAME_FILTER_PM 0x00000010 /* Pass all multicast */
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#define SXGBE_FRAME_FILTER_DBF 0x00000020 /* Disable Broadcast frames */
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#define SXGBE_FRAME_FILTER_SAIF 0x00000100 /* Inverse Filtering */
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#define SXGBE_FRAME_FILTER_SAF 0x00000200 /* Source Address Filter */
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#define SXGBE_FRAME_FILTER_HPF 0x00000400 /* Hash or perfect Filter */
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#define SXGBE_FRAME_FILTER_RA 0x80000000 /* Receive all mode */
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#define SXGBE_HASH_TABLE_SIZE 64
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#define SXGBE_HASH_HIGH 0x00000008 /* Multicast Hash Table High */
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#define SXGBE_HASH_LOW 0x0000000c /* Multicast Hash Table Low */
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#define SXGBE_HI_REG_AE 0x80000000
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/* Minimum and maximum MTU */
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#define MIN_MTU 68
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#define MAX_MTU 9000
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#define SXGBE_FOR_EACH_QUEUE(max_queues, queue_num) \
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for (queue_num = 0; queue_num < max_queues; queue_num++)
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#define DRV_VERSION "1.0.0"
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#define SXGBE_MAX_RX_CHANNELS 16
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#define SXGBE_MAX_TX_CHANNELS 16
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#define START_MAC_REG_OFFSET 0x0000
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#define MAX_MAC_REG_OFFSET 0x0DFC
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#define START_MTL_REG_OFFSET 0x1000
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#define MAX_MTL_REG_OFFSET 0x18FC
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#define START_DMA_REG_OFFSET 0x3000
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#define MAX_DMA_REG_OFFSET 0x38FC
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#define REG_SPACE_SIZE 0x2000
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/* sxgbe statistics counters */
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struct sxgbe_extra_stats {
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/* TX/RX IRQ events */
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unsigned long tx_underflow_irq;
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unsigned long tx_process_stopped_irq;
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unsigned long tx_ctxt_desc_err;
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unsigned long tx_threshold;
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unsigned long rx_threshold;
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unsigned long tx_pkt_n;
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unsigned long rx_pkt_n;
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unsigned long normal_irq_n;
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unsigned long tx_normal_irq_n;
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unsigned long rx_normal_irq_n;
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unsigned long napi_poll;
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unsigned long tx_clean;
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unsigned long tx_reset_ic_bit;
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unsigned long rx_process_stopped_irq;
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unsigned long rx_underflow_irq;
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/* Bus access errors */
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unsigned long fatal_bus_error_irq;
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unsigned long tx_read_transfer_err;
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unsigned long tx_write_transfer_err;
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unsigned long tx_desc_access_err;
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unsigned long tx_buffer_access_err;
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unsigned long tx_data_transfer_err;
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unsigned long rx_read_transfer_err;
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unsigned long rx_write_transfer_err;
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unsigned long rx_desc_access_err;
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unsigned long rx_buffer_access_err;
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unsigned long rx_data_transfer_err;
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/* EEE-LPI stats */
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unsigned long tx_lpi_entry_n;
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unsigned long tx_lpi_exit_n;
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unsigned long rx_lpi_entry_n;
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unsigned long rx_lpi_exit_n;
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unsigned long eee_wakeup_error_n;
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/* RX specific */
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/* L2 error */
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unsigned long rx_code_gmii_err;
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unsigned long rx_watchdog_err;
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unsigned long rx_crc_err;
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unsigned long rx_gaint_pkt_err;
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unsigned long ip_hdr_err;
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unsigned long ip_payload_err;
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unsigned long overflow_error;
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/* L2 Pkt type */
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unsigned long len_pkt;
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unsigned long mac_ctl_pkt;
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unsigned long dcb_ctl_pkt;
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unsigned long arp_pkt;
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unsigned long oam_pkt;
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unsigned long untag_okt;
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unsigned long other_pkt;
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unsigned long svlan_tag_pkt;
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unsigned long cvlan_tag_pkt;
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unsigned long dvlan_ocvlan_icvlan_pkt;
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unsigned long dvlan_osvlan_isvlan_pkt;
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unsigned long dvlan_osvlan_icvlan_pkt;
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unsigned long dvan_ocvlan_icvlan_pkt;
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/* L3/L4 Pkt type */
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unsigned long not_ip_pkt;
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unsigned long ip4_tcp_pkt;
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unsigned long ip4_udp_pkt;
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unsigned long ip4_icmp_pkt;
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unsigned long ip4_unknown_pkt;
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unsigned long ip6_tcp_pkt;
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unsigned long ip6_udp_pkt;
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unsigned long ip6_icmp_pkt;
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unsigned long ip6_unknown_pkt;
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/* Filter specific */
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unsigned long vlan_filter_match;
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unsigned long sa_filter_fail;
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unsigned long da_filter_fail;
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unsigned long hash_filter_pass;
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unsigned long l3_filter_match;
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unsigned long l4_filter_match;
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/* RX context specific */
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unsigned long timestamp_dropped;
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unsigned long rx_msg_type_no_ptp;
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unsigned long rx_ptp_type_sync;
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unsigned long rx_ptp_type_follow_up;
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unsigned long rx_ptp_type_delay_req;
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unsigned long rx_ptp_type_delay_resp;
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unsigned long rx_ptp_type_pdelay_req;
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unsigned long rx_ptp_type_pdelay_resp;
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unsigned long rx_ptp_type_pdelay_follow_up;
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unsigned long rx_ptp_announce;
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unsigned long rx_ptp_mgmt;
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unsigned long rx_ptp_signal;
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unsigned long rx_ptp_resv_msg_type;
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};
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struct mac_link {
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int port;
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int duplex;
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int speed;
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};
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struct mii_regs {
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unsigned int addr; /* MII Address */
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unsigned int data; /* MII Data */
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};
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struct sxgbe_core_ops {
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/* MAC core initialization */
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void (*core_init)(void __iomem *ioaddr);
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/* Dump MAC registers */
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void (*dump_regs)(void __iomem *ioaddr);
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/* Handle extra events on specific interrupts hw dependent */
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int (*host_irq_status)(void __iomem *ioaddr,
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struct sxgbe_extra_stats *x);
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/* Set power management mode (e.g. magic frame) */
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void (*pmt)(void __iomem *ioaddr, unsigned long mode);
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/* Set/Get Unicast MAC addresses */
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void (*set_umac_addr)(void __iomem *ioaddr, unsigned char *addr,
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unsigned int reg_n);
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void (*get_umac_addr)(void __iomem *ioaddr, unsigned char *addr,
|
||
|
|
unsigned int reg_n);
|
||
|
|
void (*enable_rx)(void __iomem *ioaddr, bool enable);
|
||
|
|
void (*enable_tx)(void __iomem *ioaddr, bool enable);
|
||
|
|
|
||
|
|
/* controller version specific operations */
|
||
|
|
int (*get_controller_version)(void __iomem *ioaddr);
|
||
|
|
|
||
|
|
/* If supported then get the optional core features */
|
||
|
|
unsigned int (*get_hw_feature)(void __iomem *ioaddr,
|
||
|
|
unsigned char feature_index);
|
||
|
|
/* adjust SXGBE speed */
|
||
|
|
void (*set_speed)(void __iomem *ioaddr, unsigned char speed);
|
||
|
|
|
||
|
|
/* EEE-LPI specific operations */
|
||
|
|
void (*set_eee_mode)(void __iomem *ioaddr);
|
||
|
|
void (*reset_eee_mode)(void __iomem *ioaddr);
|
||
|
|
void (*set_eee_timer)(void __iomem *ioaddr, const int ls,
|
||
|
|
const int tw);
|
||
|
|
void (*set_eee_pls)(void __iomem *ioaddr, const int link);
|
||
|
|
|
||
|
|
/* Enable disable checksum offload operations */
|
||
|
|
void (*enable_rx_csum)(void __iomem *ioaddr);
|
||
|
|
void (*disable_rx_csum)(void __iomem *ioaddr);
|
||
|
|
void (*enable_rxqueue)(void __iomem *ioaddr, int queue_num);
|
||
|
|
void (*disable_rxqueue)(void __iomem *ioaddr, int queue_num);
|
||
|
|
};
|
||
|
|
|
||
|
|
const struct sxgbe_core_ops *sxgbe_get_core_ops(void);
|
||
|
|
|
||
|
|
struct sxgbe_ops {
|
||
|
|
const struct sxgbe_core_ops *mac;
|
||
|
|
const struct sxgbe_desc_ops *desc;
|
||
|
|
const struct sxgbe_dma_ops *dma;
|
||
|
|
const struct sxgbe_mtl_ops *mtl;
|
||
|
|
struct mii_regs mii; /* MII register Addresses */
|
||
|
|
struct mac_link link;
|
||
|
|
unsigned int ctrl_uid;
|
||
|
|
unsigned int ctrl_id;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* SXGBE private data structures */
|
||
|
|
struct sxgbe_tx_queue {
|
||
|
|
unsigned int irq_no;
|
||
|
|
struct sxgbe_priv_data *priv_ptr;
|
||
|
|
struct sxgbe_tx_norm_desc *dma_tx;
|
||
|
|
dma_addr_t dma_tx_phy;
|
||
|
|
dma_addr_t *tx_skbuff_dma;
|
||
|
|
struct sk_buff **tx_skbuff;
|
||
|
|
struct timer_list txtimer;
|
||
|
|
spinlock_t tx_lock; /* lock for tx queues */
|
||
|
|
unsigned int cur_tx;
|
||
|
|
unsigned int dirty_tx;
|
||
|
|
u32 tx_count_frames;
|
||
|
|
u32 tx_coal_frames;
|
||
|
|
u32 tx_coal_timer;
|
||
|
|
int hwts_tx_en;
|
||
|
|
u16 prev_mss;
|
||
|
|
u8 queue_no;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct sxgbe_rx_queue {
|
||
|
|
struct sxgbe_priv_data *priv_ptr;
|
||
|
|
struct sxgbe_rx_norm_desc *dma_rx;
|
||
|
|
struct sk_buff **rx_skbuff;
|
||
|
|
unsigned int cur_rx;
|
||
|
|
unsigned int dirty_rx;
|
||
|
|
unsigned int irq_no;
|
||
|
|
u32 rx_riwt;
|
||
|
|
dma_addr_t *rx_skbuff_dma;
|
||
|
|
dma_addr_t dma_rx_phy;
|
||
|
|
u8 queue_no;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* SXGBE HW capabilities */
|
||
|
|
struct sxgbe_hw_features {
|
||
|
|
/****** CAP [0] *******/
|
||
|
|
unsigned int pmt_remote_wake_up;
|
||
|
|
unsigned int pmt_magic_frame;
|
||
|
|
/* IEEE 1588-2008 */
|
||
|
|
unsigned int atime_stamp;
|
||
|
|
|
||
|
|
unsigned int eee;
|
||
|
|
|
||
|
|
unsigned int tx_csum_offload;
|
||
|
|
unsigned int rx_csum_offload;
|
||
|
|
unsigned int multi_macaddr;
|
||
|
|
unsigned int tstamp_srcselect;
|
||
|
|
unsigned int sa_vlan_insert;
|
||
|
|
|
||
|
|
/****** CAP [1] *******/
|
||
|
|
unsigned int rxfifo_size;
|
||
|
|
unsigned int txfifo_size;
|
||
|
|
unsigned int atstmap_hword;
|
||
|
|
unsigned int dcb_enable;
|
||
|
|
unsigned int splithead_enable;
|
||
|
|
unsigned int tcpseg_offload;
|
||
|
|
unsigned int debug_mem;
|
||
|
|
unsigned int rss_enable;
|
||
|
|
unsigned int hash_tsize;
|
||
|
|
unsigned int l3l4_filer_size;
|
||
|
|
|
||
|
|
/* This value is in bytes and
|
||
|
|
* as mentioned in HW features
|
||
|
|
* of SXGBE data book
|
||
|
|
*/
|
||
|
|
unsigned int rx_mtl_qsize;
|
||
|
|
unsigned int tx_mtl_qsize;
|
||
|
|
|
||
|
|
/****** CAP [2] *******/
|
||
|
|
/* TX and RX number of channels */
|
||
|
|
unsigned int rx_mtl_queues;
|
||
|
|
unsigned int tx_mtl_queues;
|
||
|
|
unsigned int rx_dma_channels;
|
||
|
|
unsigned int tx_dma_channels;
|
||
|
|
unsigned int pps_output_count;
|
||
|
|
unsigned int aux_input_count;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct sxgbe_priv_data {
|
||
|
|
/* DMA descriptos */
|
||
|
|
struct sxgbe_tx_queue *txq[SXGBE_TX_QUEUES];
|
||
|
|
struct sxgbe_rx_queue *rxq[SXGBE_RX_QUEUES];
|
||
|
|
u8 cur_rx_qnum;
|
||
|
|
|
||
|
|
unsigned int dma_tx_size;
|
||
|
|
unsigned int dma_rx_size;
|
||
|
|
unsigned int dma_buf_sz;
|
||
|
|
u32 rx_riwt;
|
||
|
|
|
||
|
|
struct napi_struct napi;
|
||
|
|
|
||
|
|
void __iomem *ioaddr;
|
||
|
|
struct net_device *dev;
|
||
|
|
struct device *device;
|
||
|
|
struct sxgbe_ops *hw; /* sxgbe specific ops */
|
||
|
|
int no_csum_insertion;
|
||
|
|
int irq;
|
||
|
|
int rxcsum_insertion;
|
||
|
|
spinlock_t stats_lock; /* lock for tx/rx statatics */
|
||
|
|
|
||
|
|
int oldlink;
|
||
|
|
int speed;
|
||
|
|
int oldduplex;
|
||
|
|
struct mii_bus *mii;
|
||
|
|
int mii_irq[PHY_MAX_ADDR];
|
||
|
|
u8 rx_pause;
|
||
|
|
u8 tx_pause;
|
||
|
|
|
||
|
|
struct sxgbe_extra_stats xstats;
|
||
|
|
struct sxgbe_plat_data *plat;
|
||
|
|
struct sxgbe_hw_features hw_cap;
|
||
|
|
|
||
|
|
u32 msg_enable;
|
||
|
|
|
||
|
|
struct clk *sxgbe_clk;
|
||
|
|
int clk_csr;
|
||
|
|
unsigned int mode;
|
||
|
|
unsigned int default_addend;
|
||
|
|
|
||
|
|
/* advanced time stamp support */
|
||
|
|
u32 adv_ts;
|
||
|
|
int use_riwt;
|
||
|
|
struct ptp_clock *ptp_clock;
|
||
|
|
|
||
|
|
/* tc control */
|
||
|
|
int tx_tc;
|
||
|
|
int rx_tc;
|
||
|
|
/* EEE-LPI specific members */
|
||
|
|
struct timer_list eee_ctrl_timer;
|
||
|
|
bool tx_path_in_lpi_mode;
|
||
|
|
int lpi_irq;
|
||
|
|
int eee_enabled;
|
||
|
|
int eee_active;
|
||
|
|
int tx_lpi_timer;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Function prototypes */
|
||
|
|
struct sxgbe_priv_data *sxgbe_drv_probe(struct device *device,
|
||
|
|
struct sxgbe_plat_data *plat_dat,
|
||
|
|
void __iomem *addr);
|
||
|
|
int sxgbe_drv_remove(struct net_device *ndev);
|
||
|
|
void sxgbe_set_ethtool_ops(struct net_device *netdev);
|
||
|
|
int sxgbe_mdio_unregister(struct net_device *ndev);
|
||
|
|
int sxgbe_mdio_register(struct net_device *ndev);
|
||
|
|
int sxgbe_register_platform(void);
|
||
|
|
void sxgbe_unregister_platform(void);
|
||
|
|
|
||
|
|
#ifdef CONFIG_PM
|
||
|
|
int sxgbe_suspend(struct net_device *ndev);
|
||
|
|
int sxgbe_resume(struct net_device *ndev);
|
||
|
|
int sxgbe_freeze(struct net_device *ndev);
|
||
|
|
int sxgbe_restore(struct net_device *ndev);
|
||
|
|
#endif /* CONFIG_PM */
|
||
|
|
|
||
|
|
const struct sxgbe_mtl_ops *sxgbe_get_mtl_ops(void);
|
||
|
|
|
||
|
|
void sxgbe_disable_eee_mode(struct sxgbe_priv_data * const priv);
|
||
|
|
bool sxgbe_eee_init(struct sxgbe_priv_data * const priv);
|
||
|
|
#endif /* __SXGBE_COMMON_H__ */
|