336 lines
14 KiB
C
336 lines
14 KiB
C
/* Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 and
|
|
* only version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#ifndef _EMAC_H_
|
|
#define _EMAC_H_
|
|
|
|
#include <linux/irqreturn.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/platform_device.h>
|
|
#include "emac-mac.h"
|
|
#include "emac-phy.h"
|
|
|
|
/* EMAC base register offsets */
|
|
#define EMAC_DMA_MAS_CTRL 0x001400
|
|
#define EMAC_IRQ_MOD_TIM_INIT 0x001408
|
|
#define EMAC_BLK_IDLE_STS 0x00140c
|
|
#define EMAC_PHY_LINK_DELAY 0x00141c
|
|
#define EMAC_SYS_ALIV_CTRL 0x001434
|
|
#define EMAC_MAC_IPGIFG_CTRL 0x001484
|
|
#define EMAC_MAC_STA_ADDR0 0x001488
|
|
#define EMAC_MAC_STA_ADDR1 0x00148c
|
|
#define EMAC_HASH_TAB_REG0 0x001490
|
|
#define EMAC_HASH_TAB_REG1 0x001494
|
|
#define EMAC_MAC_HALF_DPLX_CTRL 0x001498
|
|
#define EMAC_MAX_FRAM_LEN_CTRL 0x00149c
|
|
#define EMAC_INT_STATUS 0x001600
|
|
#define EMAC_INT_MASK 0x001604
|
|
#define EMAC_RXMAC_STATC_REG0 0x001700
|
|
#define EMAC_RXMAC_STATC_REG22 0x001758
|
|
#define EMAC_TXMAC_STATC_REG0 0x001760
|
|
#define EMAC_TXMAC_STATC_REG24 0x0017c0
|
|
#define EMAC_CORE_HW_VERSION 0x001974
|
|
#define EMAC_IDT_TABLE0 0x001b00
|
|
#define EMAC_RXMAC_STATC_REG23 0x001bc8
|
|
#define EMAC_RXMAC_STATC_REG24 0x001bcc
|
|
#define EMAC_TXMAC_STATC_REG25 0x001bd0
|
|
#define EMAC_INT1_MASK 0x001bf0
|
|
#define EMAC_INT1_STATUS 0x001bf4
|
|
#define EMAC_INT2_MASK 0x001bf8
|
|
#define EMAC_INT2_STATUS 0x001bfc
|
|
#define EMAC_INT3_MASK 0x001c00
|
|
#define EMAC_INT3_STATUS 0x001c04
|
|
|
|
/* EMAC_DMA_MAS_CTRL */
|
|
#define DEV_ID_NUM_BMSK 0x7f000000
|
|
#define DEV_ID_NUM_SHFT 24
|
|
#define DEV_REV_NUM_BMSK 0xff0000
|
|
#define DEV_REV_NUM_SHFT 16
|
|
#define INT_RD_CLR_EN 0x4000
|
|
#define IRQ_MODERATOR2_EN 0x800
|
|
#define IRQ_MODERATOR_EN 0x400
|
|
#define LPW_CLK_SEL 0x80
|
|
#define LPW_STATE 0x20
|
|
#define LPW_MODE 0x10
|
|
#define SOFT_RST 0x1
|
|
|
|
/* EMAC_IRQ_MOD_TIM_INIT */
|
|
#define IRQ_MODERATOR2_INIT_BMSK 0xffff0000
|
|
#define IRQ_MODERATOR2_INIT_SHFT 16
|
|
#define IRQ_MODERATOR_INIT_BMSK 0xffff
|
|
#define IRQ_MODERATOR_INIT_SHFT 0
|
|
|
|
/* EMAC_INT_STATUS */
|
|
#define DIS_INT BIT(31)
|
|
#define PTP_INT BIT(30)
|
|
#define RFD4_UR_INT BIT(29)
|
|
#define TX_PKT_INT3 BIT(26)
|
|
#define TX_PKT_INT2 BIT(25)
|
|
#define TX_PKT_INT1 BIT(24)
|
|
#define RX_PKT_INT3 BIT(19)
|
|
#define RX_PKT_INT2 BIT(18)
|
|
#define RX_PKT_INT1 BIT(17)
|
|
#define RX_PKT_INT0 BIT(16)
|
|
#define TX_PKT_INT BIT(15)
|
|
#define TXQ_TO_INT BIT(14)
|
|
#define GPHY_WAKEUP_INT BIT(13)
|
|
#define GPHY_LINK_DOWN_INT BIT(12)
|
|
#define GPHY_LINK_UP_INT BIT(11)
|
|
#define DMAW_TO_INT BIT(10)
|
|
#define DMAR_TO_INT BIT(9)
|
|
#define TXF_UR_INT BIT(8)
|
|
#define RFD3_UR_INT BIT(7)
|
|
#define RFD2_UR_INT BIT(6)
|
|
#define RFD1_UR_INT BIT(5)
|
|
#define RFD0_UR_INT BIT(4)
|
|
#define RXF_OF_INT BIT(3)
|
|
#define SW_MAN_INT BIT(2)
|
|
|
|
/* EMAC_MAILBOX_6 */
|
|
#define RFD2_PROC_IDX_BMSK 0xfff0000
|
|
#define RFD2_PROC_IDX_SHFT 16
|
|
#define RFD2_PROD_IDX_BMSK 0xfff
|
|
#define RFD2_PROD_IDX_SHFT 0
|
|
|
|
/* EMAC_CORE_HW_VERSION */
|
|
#define MAJOR_BMSK 0xf0000000
|
|
#define MAJOR_SHFT 28
|
|
#define MINOR_BMSK 0xfff0000
|
|
#define MINOR_SHFT 16
|
|
#define STEP_BMSK 0xffff
|
|
#define STEP_SHFT 0
|
|
|
|
/* EMAC_EMAC_WRAPPER_CSR1 */
|
|
#define TX_INDX_FIFO_SYNC_RST BIT(23)
|
|
#define TX_TS_FIFO_SYNC_RST BIT(22)
|
|
#define RX_TS_FIFO2_SYNC_RST BIT(21)
|
|
#define RX_TS_FIFO1_SYNC_RST BIT(20)
|
|
#define TX_TS_ENABLE BIT(16)
|
|
#define DIS_1588_CLKS BIT(11)
|
|
#define FREQ_MODE BIT(9)
|
|
#define ENABLE_RRD_TIMESTAMP BIT(3)
|
|
|
|
/* EMAC_EMAC_WRAPPER_CSR2 */
|
|
#define HDRIVE_BMSK 0x3000
|
|
#define HDRIVE_SHFT 12
|
|
#define SLB_EN BIT(9)
|
|
#define PLB_EN BIT(8)
|
|
#define WOL_EN BIT(3)
|
|
#define PHY_RESET BIT(0)
|
|
|
|
#define EMAC_DEV_ID 0x0040
|
|
|
|
/* SGMII v2 per lane registers */
|
|
#define SGMII_LN_RSM_START 0x029C
|
|
|
|
/* SGMII v2 PHY common registers */
|
|
#define SGMII_PHY_CMN_CTRL 0x0408
|
|
#define SGMII_PHY_CMN_RESET_CTRL 0x0410
|
|
|
|
/* SGMII v2 PHY registers per lane */
|
|
#define SGMII_PHY_LN_OFFSET 0x0400
|
|
#define SGMII_PHY_LN_LANE_STATUS 0x00DC
|
|
#define SGMII_PHY_LN_BIST_GEN0 0x008C
|
|
#define SGMII_PHY_LN_BIST_GEN1 0x0090
|
|
#define SGMII_PHY_LN_BIST_GEN2 0x0094
|
|
#define SGMII_PHY_LN_BIST_GEN3 0x0098
|
|
#define SGMII_PHY_LN_CDR_CTRL1 0x005C
|
|
|
|
enum emac_clk_id {
|
|
EMAC_CLK_AXI,
|
|
EMAC_CLK_CFG_AHB,
|
|
EMAC_CLK_HIGH_SPEED,
|
|
EMAC_CLK_MDIO,
|
|
EMAC_CLK_TX,
|
|
EMAC_CLK_RX,
|
|
EMAC_CLK_SYS,
|
|
EMAC_CLK_CNT
|
|
};
|
|
|
|
#define EMAC_LINK_SPEED_UNKNOWN 0x0
|
|
#define EMAC_LINK_SPEED_10_HALF BIT(0)
|
|
#define EMAC_LINK_SPEED_10_FULL BIT(1)
|
|
#define EMAC_LINK_SPEED_100_HALF BIT(2)
|
|
#define EMAC_LINK_SPEED_100_FULL BIT(3)
|
|
#define EMAC_LINK_SPEED_1GB_FULL BIT(5)
|
|
|
|
#define EMAC_MAX_SETUP_LNK_CYCLE 100
|
|
|
|
/* Wake On Lan */
|
|
#define EMAC_WOL_PHY 0x00000001 /* PHY Status Change */
|
|
#define EMAC_WOL_MAGIC 0x00000002 /* Magic Packet */
|
|
|
|
struct emac_stats {
|
|
/* rx */
|
|
u64 rx_ok; /* good packets */
|
|
u64 rx_bcast; /* good broadcast packets */
|
|
u64 rx_mcast; /* good multicast packets */
|
|
u64 rx_pause; /* pause packet */
|
|
u64 rx_ctrl; /* control packets other than pause frame. */
|
|
u64 rx_fcs_err; /* packets with bad FCS. */
|
|
u64 rx_len_err; /* packets with length mismatch */
|
|
u64 rx_byte_cnt; /* good bytes count (without FCS) */
|
|
u64 rx_runt; /* runt packets */
|
|
u64 rx_frag; /* fragment count */
|
|
u64 rx_sz_64; /* packets that are 64 bytes */
|
|
u64 rx_sz_65_127; /* packets that are 65-127 bytes */
|
|
u64 rx_sz_128_255; /* packets that are 128-255 bytes */
|
|
u64 rx_sz_256_511; /* packets that are 256-511 bytes */
|
|
u64 rx_sz_512_1023; /* packets that are 512-1023 bytes */
|
|
u64 rx_sz_1024_1518; /* packets that are 1024-1518 bytes */
|
|
u64 rx_sz_1519_max; /* packets that are 1519-MTU bytes*/
|
|
u64 rx_sz_ov; /* packets that are >MTU bytes (truncated) */
|
|
u64 rx_rxf_ov; /* packets dropped due to RX FIFO overflow */
|
|
u64 rx_align_err; /* alignment errors */
|
|
u64 rx_bcast_byte_cnt; /* broadcast packets byte count (without FCS) */
|
|
u64 rx_mcast_byte_cnt; /* multicast packets byte count (without FCS) */
|
|
u64 rx_err_addr; /* packets dropped due to address filtering */
|
|
u64 rx_crc_align; /* CRC align errors */
|
|
u64 rx_jabbers; /* jabbers */
|
|
|
|
/* tx */
|
|
u64 tx_ok; /* good packets */
|
|
u64 tx_bcast; /* good broadcast packets */
|
|
u64 tx_mcast; /* good multicast packets */
|
|
u64 tx_pause; /* pause packets */
|
|
u64 tx_exc_defer; /* packets with excessive deferral */
|
|
u64 tx_ctrl; /* control packets other than pause frame */
|
|
u64 tx_defer; /* packets that are deferred. */
|
|
u64 tx_byte_cnt; /* good bytes count (without FCS) */
|
|
u64 tx_sz_64; /* packets that are 64 bytes */
|
|
u64 tx_sz_65_127; /* packets that are 65-127 bytes */
|
|
u64 tx_sz_128_255; /* packets that are 128-255 bytes */
|
|
u64 tx_sz_256_511; /* packets that are 256-511 bytes */
|
|
u64 tx_sz_512_1023; /* packets that are 512-1023 bytes */
|
|
u64 tx_sz_1024_1518; /* packets that are 1024-1518 bytes */
|
|
u64 tx_sz_1519_max; /* packets that are 1519-MTU bytes */
|
|
u64 tx_1_col; /* packets single prior collision */
|
|
u64 tx_2_col; /* packets with multiple prior collisions */
|
|
u64 tx_late_col; /* packets with late collisions */
|
|
u64 tx_abort_col; /* packets aborted due to excess collisions */
|
|
u64 tx_underrun; /* packets aborted due to FIFO underrun */
|
|
u64 tx_rd_eop; /* count of reads beyond EOP */
|
|
u64 tx_len_err; /* packets with length mismatch */
|
|
u64 tx_trunc; /* packets truncated due to size >MTU */
|
|
u64 tx_bcast_byte; /* broadcast packets byte count (without FCS) */
|
|
u64 tx_mcast_byte; /* multicast packets byte count (without FCS) */
|
|
u64 tx_col; /* collisions */
|
|
|
|
spinlock_t lock; /* prevent multiple simultaneous readers */
|
|
};
|
|
|
|
/* RSS hstype Definitions */
|
|
#define EMAC_RSS_HSTYP_IPV4_EN 0x00000001
|
|
#define EMAC_RSS_HSTYP_TCP4_EN 0x00000002
|
|
#define EMAC_RSS_HSTYP_IPV6_EN 0x00000004
|
|
#define EMAC_RSS_HSTYP_TCP6_EN 0x00000008
|
|
#define EMAC_RSS_HSTYP_ALL_EN (\
|
|
EMAC_RSS_HSTYP_IPV4_EN |\
|
|
EMAC_RSS_HSTYP_TCP4_EN |\
|
|
EMAC_RSS_HSTYP_IPV6_EN |\
|
|
EMAC_RSS_HSTYP_TCP6_EN)
|
|
|
|
#define EMAC_VLAN_TO_TAG(_vlan, _tag) \
|
|
(_tag = ((((_vlan) >> 8) & 0xFF) | (((_vlan) & 0xFF) << 8)))
|
|
|
|
#define EMAC_TAG_TO_VLAN(_tag, _vlan) \
|
|
(_vlan = ((((_tag) >> 8) & 0xFF) | (((_tag) & 0xFF) << 8)))
|
|
|
|
#define EMAC_DEF_RX_BUF_SIZE 1536
|
|
#define EMAC_MAX_JUMBO_PKT_SIZE (9 * 1024)
|
|
#define EMAC_MAX_TX_OFFLOAD_THRESH (9 * 1024)
|
|
|
|
#define EMAC_MAX_ETH_FRAME_SIZE EMAC_MAX_JUMBO_PKT_SIZE
|
|
#define EMAC_MIN_ETH_FRAME_SIZE 68
|
|
|
|
#define EMAC_DEF_TX_QUEUES 1
|
|
#define EMAC_DEF_RX_QUEUES 1
|
|
|
|
#define EMAC_MIN_TX_DESCS 128
|
|
#define EMAC_MIN_RX_DESCS 128
|
|
|
|
#define EMAC_MAX_TX_DESCS 16383
|
|
#define EMAC_MAX_RX_DESCS 2047
|
|
|
|
#define EMAC_DEF_TX_DESCS 512
|
|
#define EMAC_DEF_RX_DESCS 256
|
|
|
|
#define EMAC_DEF_RX_IRQ_MOD 250
|
|
#define EMAC_DEF_TX_IRQ_MOD 250
|
|
|
|
#define EMAC_WATCHDOG_TIME (5 * HZ)
|
|
|
|
/* by default check link every 4 seconds */
|
|
#define EMAC_TRY_LINK_TIMEOUT (4 * HZ)
|
|
|
|
/* emac_irq per-device (per-adapter) irq properties.
|
|
* @irq: irq number.
|
|
* @mask mask to use over status register.
|
|
*/
|
|
struct emac_irq {
|
|
unsigned int irq;
|
|
u32 mask;
|
|
};
|
|
|
|
/* The device's main data structure */
|
|
struct emac_adapter {
|
|
struct net_device *netdev;
|
|
struct mii_bus *mii_bus;
|
|
struct phy_device *phydev;
|
|
|
|
void __iomem *base;
|
|
void __iomem *csr;
|
|
|
|
struct emac_phy phy;
|
|
struct emac_stats stats;
|
|
|
|
struct emac_irq irq;
|
|
struct clk *clk[EMAC_CLK_CNT];
|
|
|
|
/* All Descriptor memory */
|
|
struct emac_ring_header ring_header;
|
|
struct emac_tx_queue tx_q;
|
|
struct emac_rx_queue rx_q;
|
|
unsigned int tx_desc_cnt;
|
|
unsigned int rx_desc_cnt;
|
|
unsigned int rrd_size; /* in quad words */
|
|
unsigned int rfd_size; /* in quad words */
|
|
unsigned int tpd_size; /* in quad words */
|
|
|
|
unsigned int rxbuf_size;
|
|
|
|
/* Ring parameter */
|
|
u8 tpd_burst;
|
|
u8 rfd_burst;
|
|
unsigned int dmaw_dly_cnt;
|
|
unsigned int dmar_dly_cnt;
|
|
enum emac_dma_req_block dmar_block;
|
|
enum emac_dma_req_block dmaw_block;
|
|
enum emac_dma_order dma_order;
|
|
|
|
u32 irq_mod;
|
|
u32 preamble;
|
|
|
|
struct work_struct work_thread;
|
|
|
|
u16 msg_enable;
|
|
|
|
struct mutex reset_lock;
|
|
};
|
|
|
|
int emac_reinit_locked(struct emac_adapter *adpt);
|
|
void emac_reg_update32(void __iomem *addr, u32 mask, u32 val);
|
|
irqreturn_t emac_isr(int irq, void *data);
|
|
|
|
#endif /* _EMAC_H_ */
|