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|
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
/* Copyright 2017-2019 NXP */
#include <linux/bitops.h>
#define ENETC_MM_VERIFY_SLEEP_US USEC_PER_MSEC
#define ENETC_MM_VERIFY_RETRIES 3
#define ENETC_NUM_TC 8
/* 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_PSFP BIT(9)
#define ENETC_SIPCAPR0_RSS BIT(8)
#define ENETC_SIPCAPR0_QBV BIT(4)
#define ENETC_SIPCAPR0_QBU BIT(3)
#define ENETC_SIPCAPR0_RFS BIT(2)
#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_CM BIT(4)
#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_RBICR0 0xa8
#define ENETC_RBICR0_ICEN BIT(31)
#define ENETC_RBICR0_ICPT_MASK 0x1ff
#define ENETC_RBICR0_SET_ICPT(n) ((n) & ENETC_RBICR0_ICPT_MASK)
#define ENETC_RBICR1 0xac
/* 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_SET_PRIO(val) ((val) & ENETC_TBMR_PRIO_MASK)
#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_TBICR0 0xa8
#define ENETC_TBICR0_ICEN BIT(31)
#define ENETC_TBICR0_ICPT_MASK 0xf
#define ENETC_TBICR0_SET_ICPT(n) ((ilog2(n) + 1) & ENETC_TBICR0_ICPT_MASK)
#define ENETC_TBICR1 0xac
#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_PMR_PSPEED_MASK GENMASK(11, 8)
#define ENETC_PMR_PSPEED_10M 0
#define ENETC_PMR_PSPEED_100M BIT(8)
#define ENETC_PMR_PSPEED_1000M BIT(9)
#define ENETC_PMR_PSPEED_2500M BIT(10)
#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_PCVLANR1 0x0210
#define ENETC_PCVLANR2 0x0214
#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_PPAUONTR 0x0410
#define ENETC_PPAUOFFTR 0x0414
#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_CBSE BIT(31)
#define ENETC_CBS_BW_MASK GENMASK(6, 0)
#define ENETC_PTCCBSR1(n) (0x1114 + (n) * 8) /* n = 0 to 7*/
#define ENETC_RSSHASH_KEY_SIZE 40
#define ENETC_PRSSCAPR 0x1404
#define ENETC_PRSSCAPR_GET_NUM_RSS(val) (BIT((val) & 0xf) * 32)
#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_EMDIO_BASE 0x1c00
#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_LINK_FAIL BIT(31)
#define ENETC_MMCSR_VT_MASK GENMASK(29, 23) /* Verify Time */
#define ENETC_MMCSR_VT(x) (((x) << 23) & ENETC_MMCSR_VT_MASK)
#define ENETC_MMCSR_GET_VT(x) (((x) & ENETC_MMCSR_VT_MASK) >> 23)
#define ENETC_MMCSR_TXSTS_MASK GENMASK(22, 21) /* Merge Status */
#define ENETC_MMCSR_GET_TXSTS(x) (((x) & ENETC_MMCSR_TXSTS_MASK) >> 21)
#define ENETC_MMCSR_VSTS_MASK GENMASK(20, 18) /* Verify Status */
#define ENETC_MMCSR_GET_VSTS(x) (((x) & ENETC_MMCSR_VSTS_MASK) >> 18)
#define ENETC_MMCSR_VDIS BIT(17) /* Verify Disabled */
#define ENETC_MMCSR_ME BIT(16) /* Merge Enabled */
#define ENETC_MMCSR_RAFS_MASK GENMASK(9, 8) /* Remote Additional Fragment Size */
#define ENETC_MMCSR_RAFS(x) (((x) << 8) & ENETC_MMCSR_RAFS_MASK)
#define ENETC_MMCSR_GET_RAFS(x) (((x) & ENETC_MMCSR_RAFS_MASK) >> 8)
#define ENETC_MMCSR_LAFS_MASK GENMASK(4, 3) /* Local Additional Fragment Size */
#define ENETC_MMCSR_GET_LAFS(x) (((x) & ENETC_MMCSR_LAFS_MASK) >> 3)
#define ENETC_MMCSR_LPA BIT(2) /* Local Preemption Active */
#define ENETC_MMCSR_LPE BIT(1) /* Local Preemption Enabled */
#define ENETC_MMCSR_LPS BIT(0) /* Local Preemption Supported */
#define ENETC_MMFAECR 0x1f08
#define ENETC_MMFSECR 0x1f0c
#define ENETC_MMFAOCR 0x1f10
#define ENETC_MMFCRXR 0x1f14
#define ENETC_MMFCTXR 0x1f18
#define ENETC_MMHCR 0x1f1c
#define ENETC_PTCMSDUR(n) (0x2020 + (n) * 4) /* n = TC index [0..7] */
#define ENETC_PMAC_OFFSET 0x1000
#define ENETC_PM0_CMD_CFG 0x8008
#define ENETC_PM0_TX_EN BIT(0)
#define ENETC_PM0_RX_EN BIT(1)
#define ENETC_PM0_PROMISC BIT(4)
#define ENETC_PM0_PAUSE_IGN BIT(8)
#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_RX_FIFO 0x801c
#define ENETC_PM0_RX_FIFO_VAL 1
#define ENETC_PM_IMDIO_BASE 0x8030
#define ENETC_PM0_PAUSE_QUANTA 0x8054
#define ENETC_PM0_PAUSE_THRESH 0x8064
#define ENETC_PM0_SINGLE_STEP 0x80c0
#define ENETC_PM0_SINGLE_STEP_CH BIT(7)
#define ENETC_PM0_SINGLE_STEP_EN BIT(31)
#define ENETC_SET_SINGLE_STEP_OFFSET(v) (((v) & 0xff) << 8)
#define ENETC_PM0_IF_MODE 0x8300
#define ENETC_PM0_IFM_RG BIT(2)
#define ENETC_PM0_IFM_RLP (BIT(5) | BIT(11))
#define ENETC_PM0_IFM_EN_AUTO BIT(15)
#define ENETC_PM0_IFM_SSP_MASK GENMASK(14, 13)
#define ENETC_PM0_IFM_SSP_1000 (2 << 13)
#define ENETC_PM0_IFM_SSP_100 (0 << 13)
#define ENETC_PM0_IFM_SSP_10 (1 << 13)
#define ENETC_PM0_IFM_FULL_DPX BIT(12)
#define ENETC_PM0_IFM_IFMODE_MASK GENMASK(1, 0)
#define ENETC_PM0_IFM_IFMODE_XGMII 0
#define ENETC_PM0_IFM_IFMODE_GMII 2
#define ENETC_PSIDCAPR 0x1b08
#define ENETC_PSIDCAPR_MSK GENMASK(15, 0)
#define ENETC_PSFCAPR 0x1b18
#define ENETC_PSFCAPR_MSK GENMASK(15, 0)
#define ENETC_PSGCAPR 0x1b28
#define ENETC_PSGCAPR_GCL_MSK GENMASK(18, 16)
#define ENETC_PSGCAPR_SGIT_MSK GENMASK(15, 0)
#define ENETC_PFMCAPR 0x1b38
#define ENETC_PFMCAPR_MSK GENMASK(15, 0)
/* Port MAC counters: Port MAC 0 corresponds to the eMAC and
* Port MAC 1 to the pMAC.
*/
#define ENETC_PM_REOCT(mac) (0x8100 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RALN(mac) (0x8110 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RXPF(mac) (0x8118 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RFRM(mac) (0x8120 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RFCS(mac) (0x8128 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RVLAN(mac) (0x8130 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RERR(mac) (0x8138 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RUCA(mac) (0x8140 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RMCA(mac) (0x8148 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RBCA(mac) (0x8150 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RDRP(mac) (0x8158 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RPKT(mac) (0x8160 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RUND(mac) (0x8168 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_R64(mac) (0x8170 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_R127(mac) (0x8178 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_R255(mac) (0x8180 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_R511(mac) (0x8188 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_R1023(mac) (0x8190 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_R1522(mac) (0x8198 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_R1523X(mac) (0x81A0 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_ROVR(mac) (0x81A8 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RJBR(mac) (0x81B0 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RFRG(mac) (0x81B8 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RCNP(mac) (0x81C0 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_RDRNTP(mac) (0x81C8 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TEOCT(mac) (0x8200 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TOCT(mac) (0x8208 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TCRSE(mac) (0x8210 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TXPF(mac) (0x8218 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TFRM(mac) (0x8220 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TFCS(mac) (0x8228 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TVLAN(mac) (0x8230 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TERR(mac) (0x8238 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TUCA(mac) (0x8240 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TMCA(mac) (0x8248 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TBCA(mac) (0x8250 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TPKT(mac) (0x8260 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TUND(mac) (0x8268 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_T64(mac) (0x8270 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_T127(mac) (0x8278 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_T255(mac) (0x8280 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_T511(mac) (0x8288 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_T1023(mac) (0x8290 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_T1522(mac) (0x8298 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_T1523X(mac) (0x82A0 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TCNP(mac) (0x82C0 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TDFR(mac) (0x82D0 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TMCOL(mac) (0x82D8 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TSCOL(mac) (0x82E0 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TLCOL(mac) (0x82E8 + ENETC_PMAC_OFFSET * (mac))
#define ENETC_PM_TECOL(mac) (0x82F0 + ENETC_PMAC_OFFSET * (mac))
/* 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 EIPBRR0_REVISION GENMASK(15, 0)
#define ENETC_REV_1_0 0x0100
#define ENETC_REV_4_1 0X0401
#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;
};
/* ENETC register accessors */
/* MDIO issue workaround (on LS1028A) -
* Due to a hardware issue, an access to MDIO registers
* that is concurrent with other ENETC register accesses
* may lead to the MDIO access being dropped or corrupted.
* To protect the MDIO accesses a readers-writers locking
* scheme is used, where the MDIO register accesses are
* protected by write locks to insure exclusivity, while
* the remaining ENETC registers are accessed under read
* locks since they only compete with MDIO accesses.
*/
extern rwlock_t enetc_mdio_lock;
DECLARE_STATIC_KEY_FALSE(enetc_has_err050089);
/* use this locking primitive only on the fast datapath to
* group together multiple non-MDIO register accesses to
* minimize the overhead of the lock
*/
static inline void enetc_lock_mdio(void)
{
if (static_branch_unlikely(&enetc_has_err050089))
read_lock(&enetc_mdio_lock);
}
static inline void enetc_unlock_mdio(void)
{
if (static_branch_unlikely(&enetc_has_err050089))
read_unlock(&enetc_mdio_lock);
}
/* use these accessors only on the fast datapath under
* the enetc_lock_mdio() locking primitive to minimize
* the overhead of the lock
*/
static inline u32 enetc_rd_reg_hot(void __iomem *reg)
{
if (static_branch_unlikely(&enetc_has_err050089))
lockdep_assert_held(&enetc_mdio_lock);
return ioread32(reg);
}
static inline void enetc_wr_reg_hot(void __iomem *reg, u32 val)
{
if (static_branch_unlikely(&enetc_has_err050089))
lockdep_assert_held(&enetc_mdio_lock);
iowrite32(val, reg);
}
/* internal helpers for the MDIO w/a */
static inline u32 _enetc_rd_reg_wa(void __iomem *reg)
{
u32 val;
enetc_lock_mdio();
val = ioread32(reg);
enetc_unlock_mdio();
return val;
}
static inline void _enetc_wr_reg_wa(void __iomem *reg, u32 val)
{
enetc_lock_mdio();
iowrite32(val, reg);
enetc_unlock_mdio();
}
static inline u32 _enetc_rd_mdio_reg_wa(void __iomem *reg)
{
unsigned long flags;
u32 val;
if (static_branch_unlikely(&enetc_has_err050089)) {
write_lock_irqsave(&enetc_mdio_lock, flags);
val = ioread32(reg);
write_unlock_irqrestore(&enetc_mdio_lock, flags);
} else {
val = ioread32(reg);
}
return val;
}
static inline void _enetc_wr_mdio_reg_wa(void __iomem *reg, u32 val)
{
unsigned long flags;
if (static_branch_unlikely(&enetc_has_err050089)) {
write_lock_irqsave(&enetc_mdio_lock, flags);
iowrite32(val, reg);
write_unlock_irqrestore(&enetc_mdio_lock, flags);
} else {
iowrite32(val, reg);
}
}
#ifdef ioread64
static inline u64 _enetc_rd_reg64(void __iomem *reg)
{
return 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
static inline u64 _enetc_rd_reg64_wa(void __iomem *reg)
{
u64 val;
enetc_lock_mdio();
val = _enetc_rd_reg64(reg);
enetc_unlock_mdio();
return val;
}
/* general register accessors */
#define enetc_rd_reg(reg) _enetc_rd_reg_wa((reg))
#define enetc_wr_reg(reg, val) _enetc_wr_reg_wa((reg), (val))
#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_rd_hot(hw, off) enetc_rd_reg_hot((hw)->reg + (off))
#define enetc_wr_hot(hw, off, val) enetc_wr_reg_hot((hw)->reg + (off), val)
#define enetc_rd64(hw, off) _enetc_rd_reg64_wa((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)
#define enetc_port_rd_mdio(hw, off) _enetc_rd_mdio_reg_wa((hw)->port + (off))
#define enetc_port_wr_mdio(hw, off, val) _enetc_wr_mdio_reg_wa(\
(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 {
u8 reserved[3];
u8 flags;
}; /* default layout */
__le32 txstart;
__le32 lstatus;
};
};
struct {
__le32 tstamp;
__le16 tpid;
__le16 vid;
u8 reserved[6];
u8 e_flags;
u8 flags;
} ext; /* Tx BD extension */
struct {
__le32 tstamp;
u8 reserved[10];
u8 status;
u8 flags;
} wb; /* writeback descriptor */
};
enum enetc_txbd_flags {
ENETC_TXBD_FLAGS_RES0 = BIT(0), /* reserved */
ENETC_TXBD_FLAGS_TSE = BIT(1),
ENETC_TXBD_FLAGS_W = BIT(2),
ENETC_TXBD_FLAGS_RES3 = BIT(3), /* reserved */
ENETC_TXBD_FLAGS_TXSTART = BIT(4),
ENETC_TXBD_FLAGS_EX = BIT(6),
ENETC_TXBD_FLAGS_F = BIT(7)
};
#define ENETC_TXBD_STATS_WIN BIT(7)
#define ENETC_TXBD_TXSTART_MASK GENMASK(24, 0)
#define ENETC_TXBD_FLAGS_OFFSET 24
static inline __le32 enetc_txbd_set_tx_start(u64 tx_start, u8 flags)
{
u32 temp;
temp = (tx_start >> 5 & ENETC_TXBD_TXSTART_MASK) |
(flags << ENETC_TXBD_FLAGS_OFFSET);
return cpu_to_le32(temp);
}
static inline void enetc_clear_tx_bd(union enetc_tx_bd *txbd)
{
memset(txbd, 0, sizeof(*txbd));
}
/* Extension flags */
#define ENETC_TXBD_E_FLAGS_VLAN_INS BIT(0)
#define ENETC_TXBD_E_FLAGS_ONE_STEP_PTP BIT(1)
#define ENETC_TXBD_E_FLAGS_TWO_STEP_PTP BIT(2)
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;
struct {
__le32 tstamp;
u8 reserved[12];
} ext;
};
#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_RXBD_FLAG_TPID GENMASK(1, 0)
#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
#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];
__be32 sip_h[4];
__be32 sip_m[4];
__be32 dip_h[4];
__be32 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_load_primary_mac_addr(struct enetc_hw *hw,
struct net_device *ndev)
{
u8 addr[ETH_ALEN] __aligned(4);
*(u32 *)addr = __raw_readl(hw->reg + ENETC_SIPMAR0);
*(u16 *)(addr + 4) = __raw_readw(hw->reg + ENETC_SIPMAR1);
eth_hw_addr_set(ndev, addr);
}
#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_bdr_enable_rxvlan(struct enetc_hw *hw, int idx,
bool en)
{
u32 val = enetc_rxbdr_rd(hw, idx, ENETC_RBMR);
val = (val & ~ENETC_RBMR_VTE) | (en ? ENETC_RBMR_VTE : 0);
enetc_rxbdr_wr(hw, idx, ENETC_RBMR, val);
}
static inline void enetc_bdr_enable_txvlan(struct enetc_hw *hw, int idx,
bool en)
{
u32 val = enetc_txbdr_rd(hw, idx, ENETC_TBMR);
val = (val & ~ENETC_TBMR_VIH) | (en ? ENETC_TBMR_VIH : 0);
enetc_txbdr_wr(hw, idx, ENETC_TBMR, val);
}
static inline void enetc_set_bdr_prio(struct enetc_hw *hw, int bdr_idx,
int prio)
{
u32 val = enetc_txbdr_rd(hw, bdr_idx, ENETC_TBMR);
val &= ~ENETC_TBMR_PRIO_MASK;
val |= ENETC_TBMR_SET_PRIO(prio);
enetc_txbdr_wr(hw, bdr_idx, ENETC_TBMR, val);
}
enum bdcr_cmd_class {
BDCR_CMD_UNSPEC = 0,
BDCR_CMD_MAC_FILTER,
BDCR_CMD_VLAN_FILTER,
BDCR_CMD_RSS,
BDCR_CMD_RFS,
BDCR_CMD_PORT_GCL,
BDCR_CMD_RECV_CLASSIFIER,
BDCR_CMD_STREAM_IDENTIFY,
BDCR_CMD_STREAM_FILTER,
BDCR_CMD_STREAM_GCL,
BDCR_CMD_FLOW_METER,
__BDCR_CMD_MAX_LEN,
BDCR_CMD_MAX_LEN = __BDCR_CMD_MAX_LEN - 1,
};
/* class 5, command 0 */
struct tgs_gcl_conf {
u8 atc; /* init gate value */
u8 res[7];
struct {
u8 res1[4];
__le16 acl_len;
u8 res2[2];
};
};
/* gate control list entry */
struct gce {
__le32 period;
u8 gate;
u8 res[3];
};
/* tgs_gcl_conf address point to this data space */
struct tgs_gcl_data {
__le32 btl;
__le32 bth;
__le32 ct;
__le32 cte;
struct gce entry[];
};
/* class 7, command 0, Stream Identity Entry Configuration */
struct streamid_conf {
__le32 stream_handle; /* init gate value */
__le32 iports;
u8 id_type;
u8 oui[3];
u8 res[3];
u8 en;
};
#define ENETC_CBDR_SID_VID_MASK 0xfff
#define ENETC_CBDR_SID_VIDM BIT(12)
#define ENETC_CBDR_SID_TG_MASK 0xc000
/* streamid_conf address point to this data space */
struct streamid_data {
union {
u8 dmac[6];
u8 smac[6];
};
u16 vid_vidm_tg;
};
#define ENETC_CBDR_SFI_PRI_MASK 0x7
#define ENETC_CBDR_SFI_PRIM BIT(3)
#define ENETC_CBDR_SFI_BLOV BIT(4)
#define ENETC_CBDR_SFI_BLEN BIT(5)
#define ENETC_CBDR_SFI_MSDUEN BIT(6)
#define ENETC_CBDR_SFI_FMITEN BIT(7)
#define ENETC_CBDR_SFI_ENABLE BIT(7)
/* class 8, command 0, Stream Filter Instance, Short Format */
struct sfi_conf {
__le32 stream_handle;
u8 multi;
u8 res[2];
u8 sthm;
/* Max Service Data Unit or Flow Meter Instance Table index.
* Depending on the value of FLT this represents either Max
* Service Data Unit (max frame size) allowed by the filter
* entry or is an index into the Flow Meter Instance table
* index identifying the policer which will be used to police
* it.
*/
__le16 fm_inst_table_index;
__le16 msdu;
__le16 sg_inst_table_index;
u8 res1[2];
__le32 input_ports;
u8 res2[3];
u8 en;
};
/* class 8, command 2 stream Filter Instance status query short format
* command no need structure define
* Stream Filter Instance Query Statistics Response data
*/
struct sfi_counter_data {
u32 matchl;
u32 matchh;
u32 msdu_dropl;
u32 msdu_droph;
u32 stream_gate_dropl;
u32 stream_gate_droph;
u32 flow_meter_dropl;
u32 flow_meter_droph;
};
#define ENETC_CBDR_SGI_OIPV_MASK 0x7
#define ENETC_CBDR_SGI_OIPV_EN BIT(3)
#define ENETC_CBDR_SGI_CGTST BIT(6)
#define ENETC_CBDR_SGI_OGTST BIT(7)
#define ENETC_CBDR_SGI_CFG_CHG BIT(1)
#define ENETC_CBDR_SGI_CFG_PND BIT(2)
#define ENETC_CBDR_SGI_OEX BIT(4)
#define ENETC_CBDR_SGI_OEXEN BIT(5)
#define ENETC_CBDR_SGI_IRX BIT(6)
#define ENETC_CBDR_SGI_IRXEN BIT(7)
#define ENETC_CBDR_SGI_ACLLEN_MASK 0x3
#define ENETC_CBDR_SGI_OCLLEN_MASK 0xc
#define ENETC_CBDR_SGI_EN BIT(7)
/* class 9, command 0, Stream Gate Instance Table, Short Format
* class 9, command 2, Stream Gate Instance Table entry query write back
* Short Format
*/
struct sgi_table {
u8 res[8];
u8 oipv;
u8 res0[2];
u8 ocgtst;
u8 res1[7];
u8 gset;
u8 oacl_len;
u8 res2[2];
u8 en;
};
#define ENETC_CBDR_SGI_AIPV_MASK 0x7
#define ENETC_CBDR_SGI_AIPV_EN BIT(3)
#define ENETC_CBDR_SGI_AGTST BIT(7)
/* class 9, command 1, Stream Gate Control List, Long Format */
struct sgcl_conf {
u8 aipv;
u8 res[2];
u8 agtst;
u8 res1[4];
union {
struct {
u8 res2[4];
u8 acl_len;
u8 res3[3];
};
u8 cct[8]; /* Config change time */
};
};
#define ENETC_CBDR_SGL_IOMEN BIT(0)
#define ENETC_CBDR_SGL_IPVEN BIT(3)
#define ENETC_CBDR_SGL_GTST BIT(4)
#define ENETC_CBDR_SGL_IPV_MASK 0xe
/* Stream Gate Control List Entry */
struct sgce {
u32 interval;
u8 msdu[3];
u8 multi;
};
/* stream control list class 9 , cmd 1 data buffer */
struct sgcl_data {
u32 btl;
u32 bth;
u32 ct;
u32 cte;
struct sgce sgcl[];
};
#define ENETC_CBDR_FMI_MR BIT(0)
#define ENETC_CBDR_FMI_MREN BIT(1)
#define ENETC_CBDR_FMI_DOY BIT(2)
#define ENETC_CBDR_FMI_CM BIT(3)
#define ENETC_CBDR_FMI_CF BIT(4)
#define ENETC_CBDR_FMI_NDOR BIT(5)
#define ENETC_CBDR_FMI_OALEN BIT(6)
#define ENETC_CBDR_FMI_IRFPP_MASK GENMASK(4, 0)
/* class 10: command 0/1, Flow Meter Instance Set, short Format */
struct fmi_conf {
__le32 cir;
__le32 cbs;
__le32 eir;
__le32 ebs;
u8 conf;
u8 res1;
u8 ir_fpp;
u8 res2[4];
u8 en;
};
struct enetc_cbd {
union{
struct sfi_conf sfi_conf;
struct sgi_table sgi_table;
struct fmi_conf fmi_conf;
struct {
__le32 addr[2];
union {
__le32 opt[4];
struct tgs_gcl_conf gcl_conf;
struct streamid_conf sid_set;
struct sgcl_conf sgcl_conf;
};
}; /* Long format */
__le32 data[6];
};
__le16 index;
__le16 length;
u8 cmd;
u8 cls;
u8 _res;
u8 status_flags;
};
#define ENETC_CLK_400M 400000000ULL
#define ENETC_CLK_333M 333000000ULL
static inline u32 enetc_cycles_to_usecs(u32 cycles, u64 clk_freq)
{
return (u32)div_u64(cycles * 1000000ULL, clk_freq);
}
static inline u32 enetc_usecs_to_cycles(u32 usecs, u64 clk_freq)
{
return (u32)div_u64(usecs * clk_freq, 1000000ULL);
}
/* Port traffic class frame preemption register */
#define ENETC_PTCFPR(n) (0x1910 + (n) * 4) /* n = [0 ..7] */
#define ENETC_PTCFPR_FPE BIT(31)
/* port time gating control register */
#define ENETC_PTGCR 0x11a00
#define ENETC_PTGCR_TGE BIT(31)
#define ENETC_PTGCR_TGPE BIT(30)
/* Port time gating capability register */
#define ENETC_PTGCAPR 0x11a08
#define ENETC_PTGCAPR_MAX_GCL_LEN_MASK GENMASK(15, 0)
/* Port time specific departure */
#define ENETC_PTCTSDR(n) (0x1210 + 4 * (n))
#define ENETC_TSDE BIT(31)
/* PSFP setting */
#define ENETC_PPSFPMR 0x11b00
#define ENETC_PPSFPMR_PSFPEN BIT(0)
#define ENETC_PPSFPMR_VS BIT(1)
#define ENETC_PPSFPMR_PVC BIT(2)
#define ENETC_PPSFPMR_PVZC BIT(3)
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