1/* 2 * Copyright (C) 2014 Freescale Semiconductor 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7#ifndef __LDPAA_ETH_H 8#define __LDPAA_ETH_H 9 10#include <linux/netdevice.h> 11#include <fsl-mc/fsl_mc.h> 12#include <fsl-mc/fsl_dpaa_fd.h> 13#include <fsl-mc/fsl_dprc.h> 14#include <fsl-mc/fsl_dpni.h> 15#include <fsl-mc/fsl_dpbp.h> 16#include <fsl-mc/fsl_dpio.h> 17#include <fsl-mc/fsl_qbman_portal.h> 18#include <fsl-mc/fsl_mc_private.h> 19 20 21enum ldpaa_eth_type { 22 LDPAA_ETH_1G_E, 23 LDPAA_ETH_10G_E, 24}; 25 26/* Arbitrary values for now, but we'll need to tune */ 27#define LDPAA_ETH_NUM_BUFS (7 * 7) 28#define LDPAA_ETH_REFILL_THRESH (LDPAA_ETH_NUM_BUFS/2) 29#define LDPAA_ETH_RX_BUFFER_SIZE 2048 30 31/* Hardware requires alignment for buffer address and length: 256-byte 32 * for ingress, 64-byte for egress. Using 256 for both. 33 */ 34#define LDPAA_ETH_BUF_ALIGN 256 35 36/* So far we're only accomodating a skb backpointer in the frame's 37 * software annotation, but the hardware options are either 0 or 64. 38 */ 39#define LDPAA_ETH_SWA_SIZE 64 40 41/* Annotation valid bits in FD FRC */ 42#define LDPAA_FD_FRC_FASV 0x8000 43#define LDPAA_FD_FRC_FAEADV 0x4000 44#define LDPAA_FD_FRC_FAPRV 0x2000 45#define LDPAA_FD_FRC_FAIADV 0x1000 46#define LDPAA_FD_FRC_FASWOV 0x0800 47#define LDPAA_FD_FRC_FAICFDV 0x0400 48 49/* Annotation bits in FD CTRL */ 50#define LDPAA_FD_CTRL_ASAL 0x00020000 /* ASAL = 128 */ 51#define LDPAA_FD_CTRL_PTA 0x00800000 52#define LDPAA_FD_CTRL_PTV1 0x00400000 53 54/* TODO: we may want to move this and other WRIOP related defines 55 * to a separate header 56 */ 57/* Frame annotation status */ 58struct ldpaa_fas { 59 u8 reserved; 60 u8 ppid; 61 __le16 ifpid; 62 __le32 status; 63} __packed; 64 65/* Debug frame, otherwise supposed to be discarded */ 66#define LDPAA_ETH_FAS_DISC 0x80000000 67/* MACSEC frame */ 68#define LDPAA_ETH_FAS_MS 0x40000000 69#define LDPAA_ETH_FAS_PTP 0x08000000 70/* Ethernet multicast frame */ 71#define LDPAA_ETH_FAS_MC 0x04000000 72/* Ethernet broadcast frame */ 73#define LDPAA_ETH_FAS_BC 0x02000000 74#define LDPAA_ETH_FAS_KSE 0x00040000 75#define LDPAA_ETH_FAS_EOFHE 0x00020000 76#define LDPAA_ETH_FAS_MNLE 0x00010000 77#define LDPAA_ETH_FAS_TIDE 0x00008000 78#define LDPAA_ETH_FAS_PIEE 0x00004000 79/* Frame length error */ 80#define LDPAA_ETH_FAS_FLE 0x00002000 81/* Frame physical error; our favourite pastime */ 82#define LDPAA_ETH_FAS_FPE 0x00001000 83#define LDPAA_ETH_FAS_PTE 0x00000080 84#define LDPAA_ETH_FAS_ISP 0x00000040 85#define LDPAA_ETH_FAS_PHE 0x00000020 86#define LDPAA_ETH_FAS_BLE 0x00000010 87/* L3 csum validation performed */ 88#define LDPAA_ETH_FAS_L3CV 0x00000008 89/* L3 csum error */ 90#define LDPAA_ETH_FAS_L3CE 0x00000004 91/* L4 csum validation performed */ 92#define LDPAA_ETH_FAS_L4CV 0x00000002 93/* L4 csum error */ 94#define LDPAA_ETH_FAS_L4CE 0x00000001 95/* These bits always signal errors */ 96#define LDPAA_ETH_RX_ERR_MASK (LDPAA_ETH_FAS_DISC | \ 97 LDPAA_ETH_FAS_KSE | \ 98 LDPAA_ETH_FAS_EOFHE | \ 99 LDPAA_ETH_FAS_MNLE | \ 100 LDPAA_ETH_FAS_TIDE | \ 101 LDPAA_ETH_FAS_PIEE | \ 102 LDPAA_ETH_FAS_FLE | \ 103 LDPAA_ETH_FAS_FPE | \ 104 LDPAA_ETH_FAS_PTE | \ 105 LDPAA_ETH_FAS_ISP | \ 106 LDPAA_ETH_FAS_PHE | \ 107 LDPAA_ETH_FAS_BLE | \ 108 LDPAA_ETH_FAS_L3CE | \ 109 LDPAA_ETH_FAS_L4CE) 110/* Unsupported features in the ingress */ 111#define LDPAA_ETH_RX_UNSUPP_MASK LDPAA_ETH_FAS_MS 112/* TODO trim down the bitmask; not all of them apply to Tx-confirm */ 113#define LDPAA_ETH_TXCONF_ERR_MASK (LDPAA_ETH_FAS_KSE | \ 114 LDPAA_ETH_FAS_EOFHE | \ 115 LDPAA_ETH_FAS_MNLE | \ 116 LDPAA_ETH_FAS_TIDE) 117 118struct ldpaa_eth_priv { 119 struct eth_device *net_dev; 120 int dpmac_id; 121 uint16_t dpmac_handle; 122 123 uint16_t tx_data_offset; 124 125 uint32_t rx_dflt_fqid; 126 uint16_t tx_qdid; 127 uint16_t tx_flow_id; 128 129 enum ldpaa_eth_type type; /* 1G or 10G ethernet */ 130 struct phy_device *phydev; 131}; 132 133struct dprc_endpoint dpmac_endpoint; 134struct dprc_endpoint dpni_endpoint; 135 136extern struct fsl_mc_io *dflt_mc_io; 137extern struct fsl_dpbp_obj *dflt_dpbp; 138extern struct fsl_dpio_obj *dflt_dpio; 139extern struct fsl_dpni_obj *dflt_dpni; 140extern uint16_t dflt_dprc_handle; 141 142static void ldpaa_dpbp_drain_cnt(int count); 143static void ldpaa_dpbp_drain(void); 144static int ldpaa_dpbp_seed(uint16_t bpid); 145static void ldpaa_dpbp_free(void); 146static int ldpaa_dpni_setup(struct ldpaa_eth_priv *priv); 147static int ldpaa_dpbp_setup(void); 148static int ldpaa_dpni_bind(struct ldpaa_eth_priv *priv); 149static int ldpaa_dpmac_setup(struct ldpaa_eth_priv *priv); 150static int ldpaa_dpmac_bind(struct ldpaa_eth_priv *priv); 151#endif /* __LDPAA_H */ 152