1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright 2014-2016 Freescale Semiconductor, Inc. 4 * Copyright 2017 NXP 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 enum ldpaa_eth_type { 21 LDPAA_ETH_1G_E, 22 LDPAA_ETH_10G_E, 23 }; 24 25 /* Arbitrary values for now, but we'll need to tune */ 26 #define LDPAA_ETH_NUM_BUFS (7 * 7) 27 #define LDPAA_ETH_REFILL_THRESH (LDPAA_ETH_NUM_BUFS/2) 28 #define LDPAA_ETH_RX_BUFFER_SIZE 2048 29 30 /* Hardware requires alignment for buffer address and length: 256-byte 31 * for ingress, 64-byte for egress. Using 256 for both. 32 */ 33 #define LDPAA_ETH_BUF_ALIGN 256 34 35 /* So far we're only accomodating a skb backpointer in the frame's 36 * software annotation, but the hardware options are either 0 or 64. 37 */ 38 #define LDPAA_ETH_SWA_SIZE 64 39 40 /* Annotation valid bits in FD FRC */ 41 #define LDPAA_FD_FRC_FASV 0x8000 42 #define LDPAA_FD_FRC_FAEADV 0x4000 43 #define LDPAA_FD_FRC_FAPRV 0x2000 44 #define LDPAA_FD_FRC_FAIADV 0x1000 45 #define LDPAA_FD_FRC_FASWOV 0x0800 46 #define LDPAA_FD_FRC_FAICFDV 0x0400 47 48 /* Annotation bits in FD CTRL */ 49 #define LDPAA_FD_CTRL_ASAL 0x00020000 /* ASAL = 128 */ 50 #define LDPAA_FD_CTRL_PTA 0x00800000 51 #define LDPAA_FD_CTRL_PTV1 0x00400000 52 53 /* TODO: we may want to move this and other WRIOP related defines 54 * to a separate header 55 */ 56 /* Frame annotation status */ 57 struct ldpaa_fas { 58 u8 reserved; 59 u8 ppid; 60 __le16 ifpid; 61 __le32 status; 62 } __packed; 63 64 /* Debug frame, otherwise supposed to be discarded */ 65 #define LDPAA_ETH_FAS_DISC 0x80000000 66 /* MACSEC frame */ 67 #define LDPAA_ETH_FAS_MS 0x40000000 68 #define LDPAA_ETH_FAS_PTP 0x08000000 69 /* Ethernet multicast frame */ 70 #define LDPAA_ETH_FAS_MC 0x04000000 71 /* Ethernet broadcast frame */ 72 #define LDPAA_ETH_FAS_BC 0x02000000 73 #define LDPAA_ETH_FAS_KSE 0x00040000 74 #define LDPAA_ETH_FAS_EOFHE 0x00020000 75 #define LDPAA_ETH_FAS_MNLE 0x00010000 76 #define LDPAA_ETH_FAS_TIDE 0x00008000 77 #define LDPAA_ETH_FAS_PIEE 0x00004000 78 /* Frame length error */ 79 #define LDPAA_ETH_FAS_FLE 0x00002000 80 /* Frame physical error; our favourite pastime */ 81 #define LDPAA_ETH_FAS_FPE 0x00001000 82 #define LDPAA_ETH_FAS_PTE 0x00000080 83 #define LDPAA_ETH_FAS_ISP 0x00000040 84 #define LDPAA_ETH_FAS_PHE 0x00000020 85 #define LDPAA_ETH_FAS_BLE 0x00000010 86 /* L3 csum validation performed */ 87 #define LDPAA_ETH_FAS_L3CV 0x00000008 88 /* L3 csum error */ 89 #define LDPAA_ETH_FAS_L3CE 0x00000004 90 /* L4 csum validation performed */ 91 #define LDPAA_ETH_FAS_L4CV 0x00000002 92 /* L4 csum error */ 93 #define LDPAA_ETH_FAS_L4CE 0x00000001 94 /* These bits always signal errors */ 95 #define LDPAA_ETH_RX_ERR_MASK (LDPAA_ETH_FAS_DISC | \ 96 LDPAA_ETH_FAS_KSE | \ 97 LDPAA_ETH_FAS_EOFHE | \ 98 LDPAA_ETH_FAS_MNLE | \ 99 LDPAA_ETH_FAS_TIDE | \ 100 LDPAA_ETH_FAS_PIEE | \ 101 LDPAA_ETH_FAS_FLE | \ 102 LDPAA_ETH_FAS_FPE | \ 103 LDPAA_ETH_FAS_PTE | \ 104 LDPAA_ETH_FAS_ISP | \ 105 LDPAA_ETH_FAS_PHE | \ 106 LDPAA_ETH_FAS_BLE | \ 107 LDPAA_ETH_FAS_L3CE | \ 108 LDPAA_ETH_FAS_L4CE) 109 /* Unsupported features in the ingress */ 110 #define LDPAA_ETH_RX_UNSUPP_MASK LDPAA_ETH_FAS_MS 111 /* TODO trim down the bitmask; not all of them apply to Tx-confirm */ 112 #define LDPAA_ETH_TXCONF_ERR_MASK (LDPAA_ETH_FAS_KSE | \ 113 LDPAA_ETH_FAS_EOFHE | \ 114 LDPAA_ETH_FAS_MNLE | \ 115 LDPAA_ETH_FAS_TIDE) 116 117 static const char ldpaa_eth_dpni_stat_strings[][ETH_GSTRING_LEN] = { 118 "[dpni ] rx frames", 119 "[dpni ] rx bytes", 120 "[dpni ] rx mcast frames", 121 "[dpni ] rx mcast bytes", 122 "[dpni ] rx bcast frames", 123 "[dpni ] rx bcast bytes", 124 "[dpni ] tx frames", 125 "[dpni ] tx bytes", 126 "[dpni ] tx mcast frames", 127 "[dpni ] tx mcast bytes", 128 "[dpni ] tx bcast frames", 129 "[dpni ] tx bcast bytes", 130 "[dpni ] rx filtered frames", 131 "[dpni ] rx discarded frames", 132 "[dpni ] rx nobuffer discards", 133 "[dpni ] tx discarded frames", 134 "[dpni ] tx confirmed frames", 135 "[dpni ] tx dequeued bytes", 136 "[dpni ] tx dequeued frames", 137 "[dpni ] tx rejected bytes", 138 "[dpni ] tx rejected frames", 139 "[dpni ] tx pending frames", 140 }; 141 142 #define LDPAA_ETH_DPNI_NUM_STATS ARRAY_SIZE(ldpaa_eth_dpni_stat_strings) 143 144 static const char ldpaa_eth_dpmac_stat_strings[][ETH_GSTRING_LEN] = { 145 [DPMAC_CNT_ING_ALL_FRAME] = "[mac] rx all frames", 146 [DPMAC_CNT_ING_GOOD_FRAME] = "[mac] rx frames ok", 147 [DPMAC_CNT_ING_ERR_FRAME] = "[mac] rx frame errors", 148 [DPMAC_CNT_ING_FRAME_DISCARD] = "[mac] rx frame discards", 149 [DPMAC_CNT_ING_UCAST_FRAME] = "[mac] rx u-cast", 150 [DPMAC_CNT_ING_BCAST_FRAME] = "[mac] rx b-cast", 151 [DPMAC_CNT_ING_MCAST_FRAME] = "[mac] rx m-cast", 152 [DPMAC_CNT_ING_FRAME_64] = "[mac] rx 64 bytes", 153 [DPMAC_CNT_ING_FRAME_127] = "[mac] rx 65-127 bytes", 154 [DPMAC_CNT_ING_FRAME_255] = "[mac] rx 128-255 bytes", 155 [DPMAC_CNT_ING_FRAME_511] = "[mac] rx 256-511 bytes", 156 [DPMAC_CNT_ING_FRAME_1023] = "[mac] rx 512-1023 bytes", 157 [DPMAC_CNT_ING_FRAME_1518] = "[mac] rx 1024-1518 bytes", 158 [DPMAC_CNT_ING_FRAME_1519_MAX] = "[mac] rx 1519-max bytes", 159 [DPMAC_CNT_ING_FRAG] = "[mac] rx frags", 160 [DPMAC_CNT_ING_JABBER] = "[mac] rx jabber", 161 [DPMAC_CNT_ING_ALIGN_ERR] = "[mac] rx align errors", 162 [DPMAC_CNT_ING_OVERSIZED] = "[mac] rx oversized", 163 [DPMAC_CNT_ING_VALID_PAUSE_FRAME] = "[mac] rx pause", 164 [DPMAC_CNT_ING_BYTE] = "[mac] rx bytes", 165 [DPMAC_CNT_EGR_GOOD_FRAME] = "[mac] tx frames ok", 166 [DPMAC_CNT_EGR_UCAST_FRAME] = "[mac] tx u-cast", 167 [DPMAC_CNT_EGR_MCAST_FRAME] = "[mac] tx m-cast", 168 [DPMAC_CNT_EGR_BCAST_FRAME] = "[mac] tx b-cast", 169 [DPMAC_CNT_EGR_ERR_FRAME] = "[mac] tx frame errors", 170 [DPMAC_CNT_EGR_UNDERSIZED] = "[mac] tx undersized", 171 [DPMAC_CNT_EGR_VALID_PAUSE_FRAME] = "[mac] tx b-pause", 172 [DPMAC_CNT_EGR_BYTE] = "[mac] tx bytes", 173 }; 174 175 #define LDPAA_ETH_DPMAC_NUM_STATS ARRAY_SIZE(ldpaa_eth_dpmac_stat_strings) 176 177 struct ldpaa_eth_priv { 178 struct phy_device *phy; 179 int phy_mode; 180 bool started; 181 uint32_t dpmac_id; 182 uint16_t dpmac_handle; 183 184 uint16_t tx_data_offset; 185 186 uint32_t rx_dflt_fqid; 187 uint16_t tx_qdid; 188 uint16_t tx_flow_id; 189 190 enum ldpaa_eth_type type; /* 1G or 10G ethernet */ 191 192 /* SW kept statistics */ 193 u64 dpni_stats[LDPAA_ETH_DPNI_NUM_STATS]; 194 u64 dpmac_stats[LDPAA_ETH_DPMAC_NUM_STATS]; 195 }; 196 197 struct dprc_endpoint dpmac_endpoint; 198 struct dprc_endpoint dpni_endpoint; 199 200 extern struct fsl_mc_io *dflt_mc_io; 201 extern struct fsl_dpbp_obj *dflt_dpbp; 202 extern struct fsl_dpio_obj *dflt_dpio; 203 extern struct fsl_dpni_obj *dflt_dpni; 204 extern uint16_t dflt_dprc_handle; 205 206 static void ldpaa_dpbp_drain_cnt(int count); 207 static void ldpaa_dpbp_drain(void); 208 static int ldpaa_dpbp_seed(uint16_t bpid); 209 static void ldpaa_dpbp_free(void); 210 static int ldpaa_dpni_setup(struct ldpaa_eth_priv *priv); 211 static int ldpaa_dpbp_setup(void); 212 static int ldpaa_dpni_bind(struct ldpaa_eth_priv *priv); 213 static int ldpaa_dpmac_setup(struct ldpaa_eth_priv *priv); 214 static int ldpaa_dpmac_bind(struct ldpaa_eth_priv *priv); 215 #endif /* __LDPAA_H */ 216