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/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
/* Copyright 2017-2019 NXP */
#include <linux/bitops.h>
/* ENETC device IDs */
#define ENETC_DEV_ID_PF 0xe100
#define ENETC_DEV_ID_VF 0xef00
#define ENETC_DEV_ID_PTP 0xee02
/* ENETC register block BAR */
#define ENETC_BAR_REGS 0
/** SI regs, offset: 0h */
#define ENETC_SIMR 0
#define ENETC_SIMR_EN BIT(31)
#define ENETC_SIMR_RSSE BIT(0)
#define ENETC_SICTR0 0x18
#define ENETC_SICTR1 0x1c
#define ENETC_SIPCAPR0 0x20
#define ENETC_SIPCAPR0_RSS BIT(8)
#define ENETC_SIPCAPR1 0x24
#define ENETC_SITGTGR 0x30
#define ENETC_SIRBGCR 0x38
/* cache attribute registers for transactions initiated by ENETC */
#define ENETC_SICAR0 0x40
#define ENETC_SICAR1 0x44
#define ENETC_SICAR2 0x48
/* rd snoop, no alloc
* wr snoop, no alloc, partial cache line update for BDs and full cache line
* update for data
*/
#define ENETC_SICAR_RD_COHERENT 0x2b2b0000
#define ENETC_SICAR_WR_COHERENT 0x00006727
#define ENETC_SICAR_MSI 0x00300030 /* rd/wr device, no snoop, no alloc */
#define ENETC_SIPMAR0 0x80
#define ENETC_SIPMAR1 0x84
/* VF-PF Message passing */
#define ENETC_DEFAULT_MSG_SIZE 1024 /* and max size */
/* msg size encoding: default and max msg value of 1024B encoded as 0 */
static inline u32 enetc_vsi_set_msize(u32 size)
{
return size < ENETC_DEFAULT_MSG_SIZE ? size >> 5 : 0;
}
#define ENETC_PSIMSGRR 0x204
#define ENETC_PSIMSGRR_MR_MASK GENMASK(2, 1)
#define ENETC_PSIMSGRR_MR(n) BIT((n) + 1) /* n = VSI index */
#define ENETC_PSIVMSGRCVAR0(n) (0x210 + (n) * 0x8) /* n = VSI index */
#define ENETC_PSIVMSGRCVAR1(n) (0x214 + (n) * 0x8)
#define ENETC_VSIMSGSR 0x204 /* RO */
#define ENETC_VSIMSGSR_MB BIT(0)
#define ENETC_VSIMSGSR_MS BIT(1)
#define ENETC_VSIMSGSNDAR0 0x210
#define ENETC_VSIMSGSNDAR1 0x214
#define ENETC_SIMSGSR_SET_MC(val) ((val) << 16)
#define ENETC_SIMSGSR_GET_MC(val) ((val) >> 16)
/* SI statistics */
#define ENETC_SIROCT 0x300
#define ENETC_SIRFRM 0x308
#define ENETC_SIRUCA 0x310
#define ENETC_SIRMCA 0x318
#define ENETC_SITOCT 0x320
#define ENETC_SITFRM 0x328
#define ENETC_SITUCA 0x330
#define ENETC_SITMCA 0x338
#define ENETC_RBDCR(n) (0x8180 + (n) * 0x200)
/* Control BDR regs */
#define ENETC_SICBDRMR 0x800
#define ENETC_SICBDRSR 0x804 /* RO */
#define ENETC_SICBDRBAR0 0x810
#define ENETC_SICBDRBAR1 0x814
#define ENETC_SICBDRPIR 0x818
#define ENETC_SICBDRCIR 0x81c
#define ENETC_SICBDRLENR 0x820
#define ENETC_SICAPR0 0x900
#define ENETC_SICAPR1 0x904
#define ENETC_PSIIER 0xa00
#define ENETC_PSIIER_MR_MASK GENMASK(2, 1)
#define ENETC_PSIIDR 0xa08
#define ENETC_SITXIDR 0xa18
#define ENETC_SIRXIDR 0xa28
#define ENETC_SIMSIVR 0xa30
#define ENETC_SIMSITRV(n) (0xB00 + (n) * 0x4)
#define ENETC_SIMSIRRV(n) (0xB80 + (n) * 0x4)
#define ENETC_SIUEFDCR 0xe28
#define ENETC_SIRFSCAPR 0x1200
#define ENETC_SIRFSCAPR_GET_NUM_RFS(val) ((val) & 0x7f)
#define ENETC_SIRSSCAPR 0x1600
#define ENETC_SIRSSCAPR_GET_NUM_RSS(val) (BIT((val) & 0xf) * 32)
/** SI BDR sub-blocks, n = 0..7 */
enum enetc_bdr_type {TX, RX};
#define ENETC_BDR_OFF(i) ((i) * 0x200)
#define ENETC_BDR(t, i, r) (0x8000 + (t) * 0x100 + ENETC_BDR_OFF(i) + (r))
/* RX BDR reg offsets */
#define ENETC_RBMR 0
#define ENETC_RBMR_BDS BIT(2)
#define ENETC_RBMR_VTE BIT(5)
#define ENETC_RBMR_EN BIT(31)
#define ENETC_RBSR 0x4
#define ENETC_RBBSR 0x8
#define ENETC_RBCIR 0xc
#define ENETC_RBBAR0 0x10
#define ENETC_RBBAR1 0x14
#define ENETC_RBPIR 0x18
#define ENETC_RBLENR 0x20
#define ENETC_RBIER 0xa0
#define ENETC_RBIER_RXTIE BIT(0)
#define ENETC_RBIDR 0xa4
#define ENETC_RBICIR0 0xa8
#define ENETC_RBICIR0_ICEN BIT(31)
/* TX BDR reg offsets */
#define ENETC_TBMR 0
#define ENETC_TBSR_BUSY BIT(0)
#define ENETC_TBMR_VIH BIT(9)
#define ENETC_TBMR_PRIO_MASK GENMASK(2, 0)
#define ENETC_TBMR_PRIO_SET(val) val
#define ENETC_TBMR_EN BIT(31)
#define ENETC_TBSR 0x4
#define ENETC_TBBAR0 0x10
#define ENETC_TBBAR1 0x14
#define ENETC_TBPIR 0x18
#define ENETC_TBCIR 0x1c
#define ENETC_TBCIR_IDX_MASK 0xffff
#define ENETC_TBLENR 0x20
#define ENETC_TBIER 0xa0
#define ENETC_TBIER_TXTIE BIT(0)
#define ENETC_TBIDR 0xa4
#define ENETC_TBICIR0 0xa8
#define ENETC_TBICIR0_ICEN BIT(31)
#define ENETC_RTBLENR_LEN(n) ((n) & ~0x7)
/* Port regs, offset: 1_0000h */
#define ENETC_PORT_BASE 0x10000
#define ENETC_PMR 0x0000
#define ENETC_PMR_EN GENMASK(18, 16)
#define ENETC_PSR 0x0004 /* RO */
#define ENETC_PSIPMR 0x0018
#define ENETC_PSIPMR_SET_UP(n) BIT(n) /* n = SI index */
#define ENETC_PSIPMR_SET_MP(n) BIT((n) + 16)
#define ENETC_PSIPVMR 0x001c
#define ENETC_VLAN_PROMISC_MAP_ALL 0x7
#define ENETC_PSIPVMR_SET_VP(simap) ((simap) & 0x7)
#define ENETC_PSIPVMR_SET_VUTA(simap) (((simap) & 0x7) << 16)
#define ENETC_PSIPMAR0(n) (0x0100 + (n) * 0x8) /* n = SI index */
#define ENETC_PSIPMAR1(n) (0x0104 + (n) * 0x8)
#define ENETC_PVCLCTR 0x0208
#define ENETC_VLAN_TYPE_C BIT(0)
#define ENETC_VLAN_TYPE_S BIT(1)
#define ENETC_PVCLCTR_OVTPIDL(bmp) ((bmp) & 0xff) /* VLAN_TYPE */
#define ENETC_PSIVLANR(n) (0x0240 + (n) * 4) /* n = SI index */
#define ENETC_PSIVLAN_EN BIT(31)
#define ENETC_PSIVLAN_SET_QOS(val) ((u32)(val) << 12)
#define ENETC_PTXMBAR 0x0608
#define ENETC_PCAPR0 0x0900
#define ENETC_PCAPR0_RXBDR(val) ((val) >> 24)
#define ENETC_PCAPR0_TXBDR(val) (((val) >> 16) & 0xff)
#define ENETC_PCAPR1 0x0904
#define ENETC_PSICFGR0(n) (0x0940 + (n) * 0xc) /* n = SI index */
#define ENETC_PSICFGR0_SET_TXBDR(val) ((val) & 0xff)
#define ENETC_PSICFGR0_SET_RXBDR(val) (((val) & 0xff) << 16)
#define ENETC_PSICFGR0_VTE BIT(12)
#define ENETC_PSICFGR0_SIVIE BIT(14)
#define ENETC_PSICFGR0_ASE BIT(15)
#define ENETC_PSICFGR0_SIVC(bmp) (((bmp) & 0xff) << 24) /* VLAN_TYPE */
#define ENETC_PTCCBSR0(n) (0x1110 + (n) * 8) /* n = 0 to 7*/
#define ENETC_PTCCBSR1(n) (0x1114 + (n) * 8) /* n = 0 to 7*/
#define ENETC_RSSHASH_KEY_SIZE 40
#define ENETC_PRSSK(n) (0x1410 + (n) * 4) /* n = [0..9] */
#define ENETC_PSIVLANFMR 0x1700
#define ENETC_PSIVLANFMR_VS BIT(0)
#define ENETC_PRFSMR 0x1800
#define ENETC_PRFSMR_RFSE BIT(31)
#define ENETC_PRFSCAPR 0x1804
#define ENETC_PRFSCAPR_GET_NUM_RFS(val) ((((val) & 0xf) + 1) * 16)
#define ENETC_PSIRFSCFGR(n) (0x1814 + (n) * 4) /* n = SI index */
#define ENETC_PFPMR 0x1900
#define ENETC_PFPMR_PMACE BIT(1)
#define ENETC_PFPMR_MWLM BIT(0)
#define ENETC_PSIUMHFR0(n, err) (((err) ? 0x1d08 : 0x1d00) + (n) * 0x10)
#define ENETC_PSIUMHFR1(n) (0x1d04 + (n) * 0x10)
#define ENETC_PSIMMHFR0(n, err) (((err) ? 0x1d00 : 0x1d08) + (n) * 0x10)
#define ENETC_PSIMMHFR1(n) (0x1d0c + (n) * 0x10)
#define ENETC_PSIVHFR0(n) (0x1e00 + (n) * 8) /* n = SI index */
#define ENETC_PSIVHFR1(n) (0x1e04 + (n) * 8) /* n = SI index */
#define ENETC_MMCSR 0x1f00
#define ENETC_MMCSR_ME BIT(16)
#define ENETC_PTCMSDUR(n) (0x2020 + (n) * 4) /* n = TC index [0..7] */
#define ENETC_PM0_CMD_CFG 0x8008
#define ENETC_PM1_CMD_CFG 0x9008
#define ENETC_PM0_TX_EN BIT(0)
#define ENETC_PM0_RX_EN BIT(1)
#define ENETC_PM0_PROMISC BIT(4)
#define ENETC_PM0_CMD_XGLP BIT(10)
#define ENETC_PM0_CMD_TXP BIT(11)
#define ENETC_PM0_CMD_PHY_TX_EN BIT(15)
#define ENETC_PM0_CMD_SFD BIT(21)
#define ENETC_PM0_MAXFRM 0x8014
#define ENETC_SET_TX_MTU(val) ((val) << 16)
#define ENETC_SET_MAXFRM(val) ((val) & 0xffff)
#define ENETC_PM0_IF_MODE 0x8300
#define ENETC_PMO_IFM_RG BIT(2)
#define ENETC_PM0_IFM_RLP (BIT(5) | BIT(11))
#define ENETC_PM0_IFM_RGAUTO (BIT(15) | ENETC_PMO_IFM_RG | BIT(1))
#define ENETC_PM0_IFM_XGMII BIT(12)
/* MAC counters */
#define ENETC_PM0_REOCT 0x8100
#define ENETC_PM0_RALN 0x8110
#define ENETC_PM0_RXPF 0x8118
#define ENETC_PM0_RFRM 0x8120
#define ENETC_PM0_RFCS 0x8128
#define ENETC_PM0_RVLAN 0x8130
#define ENETC_PM0_RERR 0x8138
#define ENETC_PM0_RUCA 0x8140
#define ENETC_PM0_RMCA 0x8148
#define ENETC_PM0_RBCA 0x8150
#define ENETC_PM0_RDRP 0x8158
#define ENETC_PM0_RPKT 0x8160
#define ENETC_PM0_RUND 0x8168
#define ENETC_PM0_R64 0x8170
#define ENETC_PM0_R127 0x8178
#define ENETC_PM0_R255 0x8180
#define ENETC_PM0_R511 0x8188
#define ENETC_PM0_R1023 0x8190
#define ENETC_PM0_R1518 0x8198
#define ENETC_PM0_R1519X 0x81A0
#define ENETC_PM0_ROVR 0x81A8
#define ENETC_PM0_RJBR 0x81B0
#define ENETC_PM0_RFRG 0x81B8
#define ENETC_PM0_RCNP 0x81C0
#define ENETC_PM0_RDRNTP 0x81C8
#define ENETC_PM0_TEOCT 0x8200
#define ENETC_PM0_TOCT 0x8208
#define ENETC_PM0_TCRSE 0x8210
#define ENETC_PM0_TXPF 0x8218
#define ENETC_PM0_TFRM 0x8220
#define ENETC_PM0_TFCS 0x8228
#define ENETC_PM0_TVLAN 0x8230
#define ENETC_PM0_TERR 0x8238
#define ENETC_PM0_TUCA 0x8240
#define ENETC_PM0_TMCA 0x8248
#define ENETC_PM0_TBCA 0x8250
#define ENETC_PM0_TPKT 0x8260
#define ENETC_PM0_TUND 0x8268
#define ENETC_PM0_T127 0x8278
#define ENETC_PM0_T1023 0x8290
#define ENETC_PM0_T1518 0x8298
#define ENETC_PM0_TCNP 0x82C0
#define ENETC_PM0_TDFR 0x82D0
#define ENETC_PM0_TMCOL 0x82D8
#define ENETC_PM0_TSCOL 0x82E0
#define ENETC_PM0_TLCOL 0x82E8
#define ENETC_PM0_TECOL 0x82F0
/* Port counters */
#define ENETC_PICDR(n) (0x0700 + (n) * 8) /* n = [0..3] */
#define ENETC_PBFDSIR 0x0810
#define ENETC_PFDMSAPR 0x0814
#define ENETC_UFDMF 0x1680
#define ENETC_MFDMF 0x1684
#define ENETC_PUFDVFR 0x1780
#define ENETC_PMFDVFR 0x1784
#define ENETC_PBFDVFR 0x1788
/** Global regs, offset: 2_0000h */
#define ENETC_GLOBAL_BASE 0x20000
#define ENETC_G_EIPBRR0 0x0bf8
#define ENETC_G_EIPBRR1 0x0bfc
#define ENETC_G_EPFBLPR(n) (0xd00 + 4 * (n))
#define ENETC_G_EPFBLPR1_XGMII 0x80000000
/* PCI device info */
struct enetc_hw {
/* SI registers, used by all PCI functions */
void __iomem *reg;
/* Port registers, PF only */
void __iomem *port;
/* IP global registers, PF only */
void __iomem *global;
};
/* general register accessors */
#define enetc_rd_reg(reg) ioread32((reg))
#define enetc_wr_reg(reg, val) iowrite32((val), (reg))
#ifdef ioread64
#define enetc_rd_reg64(reg) ioread64((reg))
#else
/* using this to read out stats on 32b systems */
static inline u64 enetc_rd_reg64(void __iomem *reg)
{
u32 low, high, tmp;
do {
high = ioread32(reg + 4);
low = ioread32(reg);
tmp = ioread32(reg + 4);
} while (high != tmp);
return le64_to_cpu((__le64)high << 32 | low);
}
#endif
#define enetc_rd(hw, off) enetc_rd_reg((hw)->reg + (off))
#define enetc_wr(hw, off, val) enetc_wr_reg((hw)->reg + (off), val)
#define enetc_rd64(hw, off) enetc_rd_reg64((hw)->reg + (off))
/* port register accessors - PF only */
#define enetc_port_rd(hw, off) enetc_rd_reg((hw)->port + (off))
#define enetc_port_wr(hw, off, val) enetc_wr_reg((hw)->port + (off), val)
/* global register accessors - PF only */
#define enetc_global_rd(hw, off) enetc_rd_reg((hw)->global + (off))
#define enetc_global_wr(hw, off, val) enetc_wr_reg((hw)->global + (off), val)
/* BDR register accessors, see ENETC_BDR() */
#define enetc_bdr_rd(hw, t, n, off) \
enetc_rd(hw, ENETC_BDR(t, n, off))
#define enetc_bdr_wr(hw, t, n, off, val) \
enetc_wr(hw, ENETC_BDR(t, n, off), val)
#define enetc_txbdr_rd(hw, n, off) enetc_bdr_rd(hw, TX, n, off)
#define enetc_rxbdr_rd(hw, n, off) enetc_bdr_rd(hw, RX, n, off)
#define enetc_txbdr_wr(hw, n, off, val) \
enetc_bdr_wr(hw, TX, n, off, val)
#define enetc_rxbdr_wr(hw, n, off, val) \
enetc_bdr_wr(hw, RX, n, off, val)
/* Buffer Descriptors (BD) */
union enetc_tx_bd {
struct {
__le64 addr;
__le16 buf_len;
__le16 frm_len;
union {
struct {
__le16 l3_csoff;
u8 l4_csoff;
u8 flags;
}; /* default layout */
__le32 lstatus;
};
};
struct {
__le32 tstamp;
__le16 tpid;
__le16 vid;
u8 reserved[6];
u8 e_flags;
u8 flags;
} ext; /* Tx BD extension */
};
#define ENETC_TXBD_FLAGS_L4CS BIT(0)
#define ENETC_TXBD_FLAGS_W BIT(2)
#define ENETC_TXBD_FLAGS_CSUM BIT(3)
#define ENETC_TXBD_FLAGS_EX BIT(6)
#define ENETC_TXBD_FLAGS_F BIT(7)
static inline void enetc_clear_tx_bd(union enetc_tx_bd *txbd)
{
memset(txbd, 0, sizeof(*txbd));
}
/* L3 csum flags */
#define ENETC_TXBD_L3_IPCS BIT(7)
#define ENETC_TXBD_L3_IPV6 BIT(15)
#define ENETC_TXBD_L3_START_MASK GENMASK(6, 0)
#define ENETC_TXBD_L3_SET_HSIZE(val) ((((val) >> 2) & 0x7f) << 8)
/* Extension flags */
#define ENETC_TXBD_E_FLAGS_VLAN_INS BIT(0)
#define ENETC_TXBD_E_FLAGS_TWO_STEP_PTP BIT(2)
static inline __le16 enetc_txbd_l3_csoff(int start, int hdr_sz, u16 l3_flags)
{
return cpu_to_le16(l3_flags | ENETC_TXBD_L3_SET_HSIZE(hdr_sz) |
(start & ENETC_TXBD_L3_START_MASK));
}
/* L4 csum flags */
#define ENETC_TXBD_L4_UDP BIT(5)
#define ENETC_TXBD_L4_TCP BIT(6)
union enetc_rx_bd {
struct {
__le64 addr;
u8 reserved[8];
} w;
struct {
__le16 inet_csum;
__le16 parse_summary;
__le32 rss_hash;
__le16 buf_len;
__le16 vlan_opt;
union {
struct {
__le16 flags;
__le16 error;
};
__le32 lstatus;
};
} r;
};
#define ENETC_RXBD_LSTATUS_R BIT(30)
#define ENETC_RXBD_LSTATUS_F BIT(31)
#define ENETC_RXBD_ERR_MASK 0xff
#define ENETC_RXBD_LSTATUS(flags) ((flags) << 16)
#define ENETC_RXBD_FLAG_VLAN BIT(9)
#define ENETC_RXBD_FLAG_TSTMP BIT(10)
#define ENETC_MAC_ADDR_FILT_CNT 8 /* # of supported entries per port */
#define EMETC_MAC_ADDR_FILT_RES 3 /* # of reserved entries at the beginning */
#define ENETC_MAX_NUM_VFS 2
struct enetc_cbd {
union {
struct {
__le32 addr[2];
__le32 opt[4];
};
__le32 data[6];
};
__le16 index;
__le16 length;
u8 cmd;
u8 cls;
u8 _res;
u8 status_flags;
};
#define ENETC_CBD_FLAGS_SF BIT(7) /* short format */
#define ENETC_CBD_STATUS_MASK 0xf
struct enetc_cmd_rfse {
u8 smac_h[6];
u8 smac_m[6];
u8 dmac_h[6];
u8 dmac_m[6];
u32 sip_h[4];
u32 sip_m[4];
u32 dip_h[4];
u32 dip_m[4];
u16 ethtype_h;
u16 ethtype_m;
u16 ethtype4_h;
u16 ethtype4_m;
u16 sport_h;
u16 sport_m;
u16 dport_h;
u16 dport_m;
u16 vlan_h;
u16 vlan_m;
u8 proto_h;
u8 proto_m;
u16 flags;
u16 result;
u16 mode;
};
#define ENETC_RFSE_EN BIT(15)
#define ENETC_RFSE_MODE_BD 2
static inline void enetc_get_primary_mac_addr(struct enetc_hw *hw, u8 *addr)
{
*(u32 *)addr = __raw_readl(hw->reg + ENETC_SIPMAR0);
*(u16 *)(addr + 4) = __raw_readw(hw->reg + ENETC_SIPMAR1);
}
#define ENETC_SI_INT_IDX 0
/* base index for Rx/Tx interrupts */
#define ENETC_BDR_INT_BASE_IDX 1
/* Messaging */
/* Command completion status */
enum enetc_msg_cmd_status {
ENETC_MSG_CMD_STATUS_OK,
ENETC_MSG_CMD_STATUS_FAIL
};
/* VSI-PSI command message types */
enum enetc_msg_cmd_type {
ENETC_MSG_CMD_MNG_MAC = 1, /* manage MAC address */
ENETC_MSG_CMD_MNG_RX_MAC_FILTER,/* manage RX MAC table */
ENETC_MSG_CMD_MNG_RX_VLAN_FILTER /* manage RX VLAN table */
};
/* VSI-PSI command action types */
enum enetc_msg_cmd_action_type {
ENETC_MSG_CMD_MNG_ADD = 1,
ENETC_MSG_CMD_MNG_REMOVE
};
/* PSI-VSI command header format */
struct enetc_msg_cmd_header {
u16 type; /* command class type */
u16 id; /* denotes the specific required action */
};
/* Common H/W utility functions */
static inline void enetc_enable_rxvlan(struct enetc_hw *hw, int si_idx,
bool en)
{
u32 val = enetc_rxbdr_rd(hw, si_idx, ENETC_RBMR);
val = (val & ~ENETC_RBMR_VTE) | (en ? ENETC_RBMR_VTE : 0);
enetc_rxbdr_wr(hw, si_idx, ENETC_RBMR, val);
}
static inline void enetc_enable_txvlan(struct enetc_hw *hw, int si_idx,
bool en)
{
u32 val = enetc_txbdr_rd(hw, si_idx, ENETC_TBMR);
val = (val & ~ENETC_TBMR_VIH) | (en ? ENETC_TBMR_VIH : 0);
enetc_txbdr_wr(hw, si_idx, ENETC_TBMR, val);
}
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