treewide: remove redundant IS_ERR() before error code check

[linux/fpc-iii.git] / drivers / net / ethernet / cavium / thunder / thunder_bgx.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2015 Cavium, Inc.
 */

#ifndef THUNDER_BGX_H
#define THUNDER_BGX_H

/* PCI device ID */
#define PCI_DEVICE_ID_THUNDER_BGX               0xA026
#define PCI_DEVICE_ID_THUNDER_RGX               0xA054

/* Subsystem device IDs */
#define PCI_SUBSYS_DEVID_88XX_BGX               0xA126
#define PCI_SUBSYS_DEVID_81XX_BGX               0xA226
#define PCI_SUBSYS_DEVID_81XX_RGX               0xA254
#define PCI_SUBSYS_DEVID_83XX_BGX               0xA326

#define    MAX_BGX_THUNDER                      8 /* Max 2 nodes, 4 per node */
#define    MAX_BGX_PER_CN88XX                   2
#define    MAX_BGX_PER_CN81XX                   3 /* 2 BGXs + 1 RGX */
#define    MAX_BGX_PER_CN83XX                   4
#define    MAX_LMAC_PER_BGX                     4
#define    MAX_BGX_CHANS_PER_LMAC               16
#define    MAX_DMAC_PER_LMAC                    8
#define    MAX_FRAME_SIZE                       9216
#define    DEFAULT_PAUSE_TIME                   0xFFFF

#define    BGX_ID_MASK                          0x3
#define    LMAC_ID_MASK                         0x3

#define    MAX_DMAC_PER_LMAC_TNS_BYPASS_MODE    2

/* Registers */
#define BGX_CMRX_CFG                    0x00
#define  CMR_PKT_TX_EN                          BIT_ULL(13)
#define  CMR_PKT_RX_EN                          BIT_ULL(14)
#define  CMR_EN                                 BIT_ULL(15)
#define BGX_CMR_GLOBAL_CFG              0x08
#define  CMR_GLOBAL_CFG_FCS_STRIP               BIT_ULL(6)
#define BGX_CMRX_RX_ID_MAP              0x60
#define BGX_CMRX_RX_STAT0               0x70
#define BGX_CMRX_RX_STAT1               0x78
#define BGX_CMRX_RX_STAT2               0x80
#define BGX_CMRX_RX_STAT3               0x88
#define BGX_CMRX_RX_STAT4               0x90
#define BGX_CMRX_RX_STAT5               0x98
#define BGX_CMRX_RX_STAT6               0xA0
#define BGX_CMRX_RX_STAT7               0xA8
#define BGX_CMRX_RX_STAT8               0xB0
#define BGX_CMRX_RX_STAT9               0xB8
#define BGX_CMRX_RX_STAT10              0xC0
#define BGX_CMRX_RX_BP_DROP             0xC8
#define BGX_CMRX_RX_DMAC_CTL            0x0E8
#define BGX_CMRX_RX_FIFO_LEN            0x108
#define BGX_CMR_RX_DMACX_CAM            0x200
#define  RX_DMACX_CAM_EN                        BIT_ULL(48)
#define  RX_DMACX_CAM_LMACID(x)                 (((u64)x) << 49)
#define  RX_DMAC_COUNT                          32
#define BGX_CMR_RX_STEERING             0x300
#define  RX_TRAFFIC_STEER_RULE_COUNT            8
#define BGX_CMR_CHAN_MSK_AND            0x450
#define BGX_CMR_BIST_STATUS             0x460
#define BGX_CMR_RX_LMACS                0x468
#define BGX_CMRX_TX_FIFO_LEN            0x518
#define BGX_CMRX_TX_STAT0               0x600
#define BGX_CMRX_TX_STAT1               0x608
#define BGX_CMRX_TX_STAT2               0x610
#define BGX_CMRX_TX_STAT3               0x618
#define BGX_CMRX_TX_STAT4               0x620
#define BGX_CMRX_TX_STAT5               0x628
#define BGX_CMRX_TX_STAT6               0x630
#define BGX_CMRX_TX_STAT7               0x638
#define BGX_CMRX_TX_STAT8               0x640
#define BGX_CMRX_TX_STAT9               0x648
#define BGX_CMRX_TX_STAT10              0x650
#define BGX_CMRX_TX_STAT11              0x658
#define BGX_CMRX_TX_STAT12              0x660
#define BGX_CMRX_TX_STAT13              0x668
#define BGX_CMRX_TX_STAT14              0x670
#define BGX_CMRX_TX_STAT15              0x678
#define BGX_CMRX_TX_STAT16              0x680
#define BGX_CMRX_TX_STAT17              0x688
#define BGX_CMR_TX_LMACS                0x1000

#define BGX_SPUX_CONTROL1               0x10000
#define  SPU_CTL_LOW_POWER                      BIT_ULL(11)
#define  SPU_CTL_LOOPBACK                       BIT_ULL(14)
#define  SPU_CTL_RESET                          BIT_ULL(15)
#define BGX_SPUX_STATUS1                0x10008
#define  SPU_STATUS1_RCV_LNK                    BIT_ULL(2)
#define BGX_SPUX_STATUS2                0x10020
#define  SPU_STATUS2_RCVFLT                     BIT_ULL(10)
#define BGX_SPUX_BX_STATUS              0x10028
#define  SPU_BX_STATUS_RX_ALIGN                 BIT_ULL(12)
#define BGX_SPUX_BR_STATUS1             0x10030
#define  SPU_BR_STATUS_BLK_LOCK                 BIT_ULL(0)
#define  SPU_BR_STATUS_RCV_LNK                  BIT_ULL(12)
#define BGX_SPUX_BR_PMD_CRTL            0x10068
#define  SPU_PMD_CRTL_TRAIN_EN                  BIT_ULL(1)
#define BGX_SPUX_BR_PMD_LP_CUP          0x10078
#define BGX_SPUX_BR_PMD_LD_CUP          0x10088
#define BGX_SPUX_BR_PMD_LD_REP          0x10090
#define BGX_SPUX_FEC_CONTROL            0x100A0
#define  SPU_FEC_CTL_FEC_EN                     BIT_ULL(0)
#define  SPU_FEC_CTL_ERR_EN                     BIT_ULL(1)
#define BGX_SPUX_AN_CONTROL             0x100C8
#define  SPU_AN_CTL_AN_EN                       BIT_ULL(12)
#define  SPU_AN_CTL_XNP_EN                      BIT_ULL(13)
#define BGX_SPUX_AN_ADV                 0x100D8
#define BGX_SPUX_MISC_CONTROL           0x10218
#define  SPU_MISC_CTL_INTLV_RDISP               BIT_ULL(10)
#define  SPU_MISC_CTL_RX_DIS                    BIT_ULL(12)
#define BGX_SPUX_INT                    0x10220 /* +(0..3) << 20 */
#define BGX_SPUX_INT_W1S                0x10228
#define BGX_SPUX_INT_ENA_W1C            0x10230
#define BGX_SPUX_INT_ENA_W1S            0x10238
#define BGX_SPU_DBG_CONTROL             0x10300
#define  SPU_DBG_CTL_AN_ARB_LINK_CHK_EN         BIT_ULL(18)
#define  SPU_DBG_CTL_AN_NONCE_MCT_DIS           BIT_ULL(29)

#define BGX_SMUX_RX_INT                 0x20000
#define BGX_SMUX_RX_FRM_CTL             0x20020
#define  BGX_PKT_RX_PTP_EN                      BIT_ULL(12)
#define BGX_SMUX_RX_JABBER              0x20030
#define BGX_SMUX_RX_CTL                 0x20048
#define  SMU_RX_CTL_STATUS                      (3ull << 0)
#define BGX_SMUX_TX_APPEND              0x20100
#define  SMU_TX_APPEND_FCS_D                    BIT_ULL(2)
#define BGX_SMUX_TX_PAUSE_PKT_TIME      0x20110
#define BGX_SMUX_TX_MIN_PKT             0x20118
#define BGX_SMUX_TX_PAUSE_PKT_INTERVAL  0x20120
#define BGX_SMUX_TX_PAUSE_ZERO          0x20138
#define BGX_SMUX_TX_INT                 0x20140
#define BGX_SMUX_TX_CTL                 0x20178
#define  SMU_TX_CTL_DIC_EN                      BIT_ULL(0)
#define  SMU_TX_CTL_UNI_EN                      BIT_ULL(1)
#define  SMU_TX_CTL_LNK_STATUS                  (3ull << 4)
#define BGX_SMUX_TX_THRESH              0x20180
#define BGX_SMUX_CTL                    0x20200
#define  SMU_CTL_RX_IDLE                        BIT_ULL(0)
#define  SMU_CTL_TX_IDLE                        BIT_ULL(1)
#define BGX_SMUX_CBFC_CTL               0x20218
#define RX_EN                                   BIT_ULL(0)
#define TX_EN                                   BIT_ULL(1)
#define BCK_EN                                  BIT_ULL(2)
#define DRP_EN                                  BIT_ULL(3)

#define BGX_GMP_PCS_MRX_CTL             0x30000
#define  PCS_MRX_CTL_RST_AN                     BIT_ULL(9)
#define  PCS_MRX_CTL_PWR_DN                     BIT_ULL(11)
#define  PCS_MRX_CTL_AN_EN                      BIT_ULL(12)
#define  PCS_MRX_CTL_LOOPBACK1                  BIT_ULL(14)
#define  PCS_MRX_CTL_RESET                      BIT_ULL(15)
#define BGX_GMP_PCS_MRX_STATUS          0x30008
#define  PCS_MRX_STATUS_LINK                    BIT_ULL(2)
#define  PCS_MRX_STATUS_AN_CPT                  BIT_ULL(5)
#define BGX_GMP_PCS_ANX_ADV             0x30010
#define BGX_GMP_PCS_ANX_AN_RESULTS      0x30020
#define BGX_GMP_PCS_LINKX_TIMER         0x30040
#define PCS_LINKX_TIMER_COUNT                   0x1E84
#define BGX_GMP_PCS_SGM_AN_ADV          0x30068
#define BGX_GMP_PCS_MISCX_CTL           0x30078
#define  PCS_MISC_CTL_MODE                      BIT_ULL(8)
#define  PCS_MISC_CTL_DISP_EN                   BIT_ULL(13)
#define  PCS_MISC_CTL_GMX_ENO                   BIT_ULL(11)
#define  PCS_MISC_CTL_SAMP_PT_MASK      0x7Full
#define BGX_GMP_GMI_PRTX_CFG            0x38020
#define  GMI_PORT_CFG_SPEED                     BIT_ULL(1)
#define  GMI_PORT_CFG_DUPLEX                    BIT_ULL(2)
#define  GMI_PORT_CFG_SLOT_TIME                 BIT_ULL(3)
#define  GMI_PORT_CFG_SPEED_MSB                 BIT_ULL(8)
#define  GMI_PORT_CFG_RX_IDLE                   BIT_ULL(12)
#define  GMI_PORT_CFG_TX_IDLE                   BIT_ULL(13)
#define BGX_GMP_GMI_RXX_FRM_CTL         0x38028
#define BGX_GMP_GMI_RXX_JABBER          0x38038
#define BGX_GMP_GMI_TXX_THRESH          0x38210
#define BGX_GMP_GMI_TXX_APPEND          0x38218
#define BGX_GMP_GMI_TXX_SLOT            0x38220
#define BGX_GMP_GMI_TXX_BURST           0x38228
#define BGX_GMP_GMI_TXX_MIN_PKT         0x38240
#define BGX_GMP_GMI_TXX_SGMII_CTL       0x38300

#define BGX_MSIX_VEC_0_29_ADDR          0x400000 /* +(0..29) << 4 */
#define BGX_MSIX_VEC_0_29_CTL           0x400008
#define BGX_MSIX_PBA_0                  0x4F0000

/* MSI-X interrupts */
#define BGX_MSIX_VECTORS        30
#define BGX_LMAC_VEC_OFFSET     7
#define BGX_MSIX_VEC_SHIFT      4

#define CMRX_INT                0
#define SPUX_INT                1
#define SMUX_RX_INT             2
#define SMUX_TX_INT             3
#define GMPX_PCS_INT            4
#define GMPX_GMI_RX_INT         5
#define GMPX_GMI_TX_INT         6
#define CMR_MEM_INT             28
#define SPU_MEM_INT             29

#define LMAC_INTR_LINK_UP       BIT(0)
#define LMAC_INTR_LINK_DOWN     BIT(1)

#define BGX_XCAST_BCAST_ACCEPT  BIT(0)
#define BGX_XCAST_MCAST_ACCEPT  BIT(1)
#define BGX_XCAST_MCAST_FILTER  BIT(2)

void bgx_set_dmac_cam_filter(int node, int bgx_idx, int lmacid, u64 mac, u8 vf);
void bgx_reset_xcast_mode(int node, int bgx_idx, int lmacid, u8 vf);
void bgx_set_xcast_mode(int node, int bgx_idx, int lmacid, u8 mode);
void octeon_mdiobus_force_mod_depencency(void);
void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable);
void bgx_add_dmac_addr(u64 dmac, int node, int bgx_idx, int lmac);
unsigned bgx_get_map(int node);
int bgx_get_lmac_count(int node, int bgx);
const u8 *bgx_get_lmac_mac(int node, int bgx_idx, int lmacid);
void bgx_set_lmac_mac(int node, int bgx_idx, int lmacid, const u8 *mac);
void bgx_get_lmac_link_state(int node, int bgx_idx, int lmacid, void *status);
void bgx_lmac_internal_loopback(int node, int bgx_idx,
                                int lmac_idx, bool enable);
void bgx_config_timestamping(int node, int bgx_idx, int lmacid, bool enable);
void bgx_lmac_get_pfc(int node, int bgx_idx, int lmacid, void *pause);
void bgx_lmac_set_pfc(int node, int bgx_idx, int lmacid, void *pause);

void xcv_init_hw(void);
void xcv_setup_link(bool link_up, int link_speed);

u64 bgx_get_rx_stats(int node, int bgx_idx, int lmac, int idx);
u64 bgx_get_tx_stats(int node, int bgx_idx, int lmac, int idx);
#define BGX_RX_STATS_COUNT 11
#define BGX_TX_STATS_COUNT 18

struct bgx_stats {
        u64 rx_stats[BGX_RX_STATS_COUNT];
        u64 tx_stats[BGX_TX_STATS_COUNT];
};

enum LMAC_TYPE {
        BGX_MODE_SGMII = 0, /* 1 lane, 1.250 Gbaud */
        BGX_MODE_XAUI = 1,  /* 4 lanes, 3.125 Gbaud */
        BGX_MODE_DXAUI = 1, /* 4 lanes, 6.250 Gbaud */
        BGX_MODE_RXAUI = 2, /* 2 lanes, 6.250 Gbaud */
        BGX_MODE_XFI = 3,   /* 1 lane, 10.3125 Gbaud */
        BGX_MODE_XLAUI = 4, /* 4 lanes, 10.3125 Gbaud */
        BGX_MODE_10G_KR = 3,/* 1 lane, 10.3125 Gbaud */
        BGX_MODE_40G_KR = 4,/* 4 lanes, 10.3125 Gbaud */
        BGX_MODE_RGMII = 5,
        BGX_MODE_QSGMII = 6,
        BGX_MODE_INVALID = 7,
};

#endif /* THUNDER_BGX_H */