1 /* 2 * Copyright (C) 2014-2016 Freescale Semiconductor 3 * Copyright 2017 NXP 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef __LDPAA_ETH_H 9 #define __LDPAA_ETH_H 10 11 #include <linux/netdevice.h> 12 #include <fsl-mc/fsl_mc.h> 13 #include <fsl-mc/fsl_dpaa_fd.h> 14 #include <fsl-mc/fsl_dprc.h> 15 #include <fsl-mc/fsl_dpni.h> 16 #include <fsl-mc/fsl_dpbp.h> 17 #include <fsl-mc/fsl_dpio.h> 18 #include <fsl-mc/fsl_qbman_portal.h> 19 #include <fsl-mc/fsl_mc_private.h> 20 21 22 enum ldpaa_eth_type { 23 LDPAA_ETH_1G_E, 24 LDPAA_ETH_10G_E, 25 }; 26 27 /* Arbitrary values for now, but we'll need to tune */ 28 #define LDPAA_ETH_NUM_BUFS (7 * 7) 29 #define LDPAA_ETH_REFILL_THRESH (LDPAA_ETH_NUM_BUFS/2) 30 #define LDPAA_ETH_RX_BUFFER_SIZE 2048 31 32 /* Hardware requires alignment for buffer address and length: 256-byte 33 * for ingress, 64-byte for egress. Using 256 for both. 34 */ 35 #define LDPAA_ETH_BUF_ALIGN 256 36 37 /* So far we're only accomodating a skb backpointer in the frame's 38 * software annotation, but the hardware options are either 0 or 64. 39 */ 40 #define LDPAA_ETH_SWA_SIZE 64 41 42 /* Annotation valid bits in FD FRC */ 43 #define LDPAA_FD_FRC_FASV 0x8000 44 #define LDPAA_FD_FRC_FAEADV 0x4000 45 #define LDPAA_FD_FRC_FAPRV 0x2000 46 #define LDPAA_FD_FRC_FAIADV 0x1000 47 #define LDPAA_FD_FRC_FASWOV 0x0800 48 #define LDPAA_FD_FRC_FAICFDV 0x0400 49 50 /* Annotation bits in FD CTRL */ 51 #define LDPAA_FD_CTRL_ASAL 0x00020000 /* ASAL = 128 */ 52 #define LDPAA_FD_CTRL_PTA 0x00800000 53 #define LDPAA_FD_CTRL_PTV1 0x00400000 54 55 /* TODO: we may want to move this and other WRIOP related defines 56 * to a separate header 57 */ 58 /* Frame annotation status */ 59 struct ldpaa_fas { 60 u8 reserved; 61 u8 ppid; 62 __le16 ifpid; 63 __le32 status; 64 } __packed; 65 66 /* Debug frame, otherwise supposed to be discarded */ 67 #define LDPAA_ETH_FAS_DISC 0x80000000 68 /* MACSEC frame */ 69 #define LDPAA_ETH_FAS_MS 0x40000000 70 #define LDPAA_ETH_FAS_PTP 0x08000000 71 /* Ethernet multicast frame */ 72 #define LDPAA_ETH_FAS_MC 0x04000000 73 /* Ethernet broadcast frame */ 74 #define LDPAA_ETH_FAS_BC 0x02000000 75 #define LDPAA_ETH_FAS_KSE 0x00040000 76 #define LDPAA_ETH_FAS_EOFHE 0x00020000 77 #define LDPAA_ETH_FAS_MNLE 0x00010000 78 #define LDPAA_ETH_FAS_TIDE 0x00008000 79 #define LDPAA_ETH_FAS_PIEE 0x00004000 80 /* Frame length error */ 81 #define LDPAA_ETH_FAS_FLE 0x00002000 82 /* Frame physical error; our favourite pastime */ 83 #define LDPAA_ETH_FAS_FPE 0x00001000 84 #define LDPAA_ETH_FAS_PTE 0x00000080 85 #define LDPAA_ETH_FAS_ISP 0x00000040 86 #define LDPAA_ETH_FAS_PHE 0x00000020 87 #define LDPAA_ETH_FAS_BLE 0x00000010 88 /* L3 csum validation performed */ 89 #define LDPAA_ETH_FAS_L3CV 0x00000008 90 /* L3 csum error */ 91 #define LDPAA_ETH_FAS_L3CE 0x00000004 92 /* L4 csum validation performed */ 93 #define LDPAA_ETH_FAS_L4CV 0x00000002 94 /* L4 csum error */ 95 #define LDPAA_ETH_FAS_L4CE 0x00000001 96 /* These bits always signal errors */ 97 #define LDPAA_ETH_RX_ERR_MASK (LDPAA_ETH_FAS_DISC | \ 98 LDPAA_ETH_FAS_KSE | \ 99 LDPAA_ETH_FAS_EOFHE | \ 100 LDPAA_ETH_FAS_MNLE | \ 101 LDPAA_ETH_FAS_TIDE | \ 102 LDPAA_ETH_FAS_PIEE | \ 103 LDPAA_ETH_FAS_FLE | \ 104 LDPAA_ETH_FAS_FPE | \ 105 LDPAA_ETH_FAS_PTE | \ 106 LDPAA_ETH_FAS_ISP | \ 107 LDPAA_ETH_FAS_PHE | \ 108 LDPAA_ETH_FAS_BLE | \ 109 LDPAA_ETH_FAS_L3CE | \ 110 LDPAA_ETH_FAS_L4CE) 111 /* Unsupported features in the ingress */ 112 #define LDPAA_ETH_RX_UNSUPP_MASK LDPAA_ETH_FAS_MS 113 /* TODO trim down the bitmask; not all of them apply to Tx-confirm */ 114 #define LDPAA_ETH_TXCONF_ERR_MASK (LDPAA_ETH_FAS_KSE | \ 115 LDPAA_ETH_FAS_EOFHE | \ 116 LDPAA_ETH_FAS_MNLE | \ 117 LDPAA_ETH_FAS_TIDE) 118 119 struct ldpaa_eth_priv { 120 struct eth_device *net_dev; 121 uint32_t dpmac_id; 122 uint16_t dpmac_handle; 123 124 uint16_t tx_data_offset; 125 126 uint32_t rx_dflt_fqid; 127 uint16_t tx_qdid; 128 uint16_t tx_flow_id; 129 130 enum ldpaa_eth_type type; /* 1G or 10G ethernet */ 131 struct phy_device *phydev; 132 }; 133 134 struct dprc_endpoint dpmac_endpoint; 135 struct dprc_endpoint dpni_endpoint; 136 137 extern struct fsl_mc_io *dflt_mc_io; 138 extern struct fsl_dpbp_obj *dflt_dpbp; 139 extern struct fsl_dpio_obj *dflt_dpio; 140 extern struct fsl_dpni_obj *dflt_dpni; 141 extern uint16_t dflt_dprc_handle; 142 143 static void ldpaa_dpbp_drain_cnt(int count); 144 static void ldpaa_dpbp_drain(void); 145 static int ldpaa_dpbp_seed(uint16_t bpid); 146 static void ldpaa_dpbp_free(void); 147 static int ldpaa_dpni_setup(struct ldpaa_eth_priv *priv); 148 static int ldpaa_dpbp_setup(void); 149 static int ldpaa_dpni_bind(struct ldpaa_eth_priv *priv); 150 static int ldpaa_dpmac_setup(struct ldpaa_eth_priv *priv); 151 static int ldpaa_dpmac_bind(struct ldpaa_eth_priv *priv); 152 #endif /* __LDPAA_H */ 153