root/drivers/net/ethernet/microchip/lan743x_main.h

/* [<][>][^][v][top][bottom][index][help] */

INCLUDED FROM


   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /* Copyright (C) 2018 Microchip Technology Inc. */
   3 
   4 #ifndef _LAN743X_H
   5 #define _LAN743X_H
   6 
   7 #include "lan743x_ptp.h"
   8 
   9 #define DRIVER_AUTHOR   "Bryan Whitehead <Bryan.Whitehead@microchip.com>"
  10 #define DRIVER_DESC "LAN743x PCIe Gigabit Ethernet Driver"
  11 #define DRIVER_NAME "lan743x"
  12 
  13 /* Register Definitions */
  14 #define ID_REV                          (0x00)
  15 #define ID_REV_ID_MASK_                 (0xFFFF0000)
  16 #define ID_REV_ID_LAN7430_              (0x74300000)
  17 #define ID_REV_ID_LAN7431_              (0x74310000)
  18 #define ID_REV_IS_VALID_CHIP_ID_(id_rev)        \
  19         (((id_rev) & 0xFFF00000) == 0x74300000)
  20 #define ID_REV_CHIP_REV_MASK_           (0x0000FFFF)
  21 #define ID_REV_CHIP_REV_A0_             (0x00000000)
  22 #define ID_REV_CHIP_REV_B0_             (0x00000010)
  23 
  24 #define FPGA_REV                        (0x04)
  25 #define FPGA_REV_GET_MINOR_(fpga_rev)   (((fpga_rev) >> 8) & 0x000000FF)
  26 #define FPGA_REV_GET_MAJOR_(fpga_rev)   ((fpga_rev) & 0x000000FF)
  27 
  28 #define HW_CFG                                  (0x010)
  29 #define HW_CFG_RELOAD_TYPE_ALL_                 (0x00000FC0)
  30 #define HW_CFG_EE_OTP_RELOAD_                   BIT(4)
  31 #define HW_CFG_LRST_                            BIT(1)
  32 
  33 #define PMT_CTL                                 (0x014)
  34 #define PMT_CTL_ETH_PHY_D3_COLD_OVR_            BIT(27)
  35 #define PMT_CTL_MAC_D3_RX_CLK_OVR_              BIT(25)
  36 #define PMT_CTL_ETH_PHY_EDPD_PLL_CTL_           BIT(24)
  37 #define PMT_CTL_ETH_PHY_D3_OVR_                 BIT(23)
  38 #define PMT_CTL_RX_FCT_RFE_D3_CLK_OVR_          BIT(18)
  39 #define PMT_CTL_GPIO_WAKEUP_EN_                 BIT(15)
  40 #define PMT_CTL_EEE_WAKEUP_EN_                  BIT(13)
  41 #define PMT_CTL_READY_                          BIT(7)
  42 #define PMT_CTL_ETH_PHY_RST_                    BIT(4)
  43 #define PMT_CTL_WOL_EN_                         BIT(3)
  44 #define PMT_CTL_ETH_PHY_WAKE_EN_                BIT(2)
  45 #define PMT_CTL_WUPS_MASK_                      (0x00000003)
  46 
  47 #define DP_SEL                          (0x024)
  48 #define DP_SEL_DPRDY_                   BIT(31)
  49 #define DP_SEL_MASK_                    (0x0000001F)
  50 #define DP_SEL_RFE_RAM                  (0x00000001)
  51 
  52 #define DP_SEL_VHF_HASH_LEN             (16)
  53 #define DP_SEL_VHF_VLAN_LEN             (128)
  54 
  55 #define DP_CMD                          (0x028)
  56 #define DP_CMD_WRITE_                   (0x00000001)
  57 
  58 #define DP_ADDR                         (0x02C)
  59 
  60 #define DP_DATA_0                       (0x030)
  61 
  62 #define E2P_CMD                         (0x040)
  63 #define E2P_CMD_EPC_BUSY_               BIT(31)
  64 #define E2P_CMD_EPC_CMD_WRITE_          (0x30000000)
  65 #define E2P_CMD_EPC_CMD_EWEN_           (0x20000000)
  66 #define E2P_CMD_EPC_CMD_READ_           (0x00000000)
  67 #define E2P_CMD_EPC_TIMEOUT_            BIT(10)
  68 #define E2P_CMD_EPC_ADDR_MASK_          (0x000001FF)
  69 
  70 #define E2P_DATA                        (0x044)
  71 
  72 #define GPIO_CFG0                       (0x050)
  73 #define GPIO_CFG0_GPIO_DIR_BIT_(bit)    BIT(16 + (bit))
  74 #define GPIO_CFG0_GPIO_DATA_BIT_(bit)   BIT(0 + (bit))
  75 
  76 #define GPIO_CFG1                       (0x054)
  77 #define GPIO_CFG1_GPIOEN_BIT_(bit)      BIT(16 + (bit))
  78 #define GPIO_CFG1_GPIOBUF_BIT_(bit)     BIT(0 + (bit))
  79 
  80 #define GPIO_CFG2                       (0x058)
  81 #define GPIO_CFG2_1588_POL_BIT_(bit)    BIT(0 + (bit))
  82 
  83 #define GPIO_CFG3                       (0x05C)
  84 #define GPIO_CFG3_1588_CH_SEL_BIT_(bit) BIT(16 + (bit))
  85 #define GPIO_CFG3_1588_OE_BIT_(bit)     BIT(0 + (bit))
  86 
  87 #define FCT_RX_CTL                      (0xAC)
  88 #define FCT_RX_CTL_EN_(channel)         BIT(28 + (channel))
  89 #define FCT_RX_CTL_DIS_(channel)        BIT(24 + (channel))
  90 #define FCT_RX_CTL_RESET_(channel)      BIT(20 + (channel))
  91 
  92 #define FCT_TX_CTL                      (0xC4)
  93 #define FCT_TX_CTL_EN_(channel)         BIT(28 + (channel))
  94 #define FCT_TX_CTL_DIS_(channel)        BIT(24 + (channel))
  95 #define FCT_TX_CTL_RESET_(channel)      BIT(20 + (channel))
  96 
  97 #define FCT_FLOW(rx_channel)                    (0xE0 + ((rx_channel) << 2))
  98 #define FCT_FLOW_CTL_OFF_THRESHOLD_             (0x00007F00)
  99 #define FCT_FLOW_CTL_OFF_THRESHOLD_SET_(value)  \
 100         ((value << 8) & FCT_FLOW_CTL_OFF_THRESHOLD_)
 101 #define FCT_FLOW_CTL_REQ_EN_                    BIT(7)
 102 #define FCT_FLOW_CTL_ON_THRESHOLD_              (0x0000007F)
 103 #define FCT_FLOW_CTL_ON_THRESHOLD_SET_(value)   \
 104         ((value << 0) & FCT_FLOW_CTL_ON_THRESHOLD_)
 105 
 106 #define MAC_CR                          (0x100)
 107 #define MAC_CR_EEE_EN_                  BIT(17)
 108 #define MAC_CR_ADD_                     BIT(12)
 109 #define MAC_CR_ASD_                     BIT(11)
 110 #define MAC_CR_CNTR_RST_                BIT(5)
 111 #define MAC_CR_RST_                     BIT(0)
 112 
 113 #define MAC_RX                          (0x104)
 114 #define MAC_RX_MAX_SIZE_SHIFT_          (16)
 115 #define MAC_RX_MAX_SIZE_MASK_           (0x3FFF0000)
 116 #define MAC_RX_RXD_                     BIT(1)
 117 #define MAC_RX_RXEN_                    BIT(0)
 118 
 119 #define MAC_TX                          (0x108)
 120 #define MAC_TX_TXD_                     BIT(1)
 121 #define MAC_TX_TXEN_                    BIT(0)
 122 
 123 #define MAC_FLOW                        (0x10C)
 124 #define MAC_FLOW_CR_TX_FCEN_            BIT(30)
 125 #define MAC_FLOW_CR_RX_FCEN_            BIT(29)
 126 #define MAC_FLOW_CR_FCPT_MASK_          (0x0000FFFF)
 127 
 128 #define MAC_RX_ADDRH                    (0x118)
 129 
 130 #define MAC_RX_ADDRL                    (0x11C)
 131 
 132 #define MAC_MII_ACC                     (0x120)
 133 #define MAC_MII_ACC_PHY_ADDR_SHIFT_     (11)
 134 #define MAC_MII_ACC_PHY_ADDR_MASK_      (0x0000F800)
 135 #define MAC_MII_ACC_MIIRINDA_SHIFT_     (6)
 136 #define MAC_MII_ACC_MIIRINDA_MASK_      (0x000007C0)
 137 #define MAC_MII_ACC_MII_READ_           (0x00000000)
 138 #define MAC_MII_ACC_MII_WRITE_          (0x00000002)
 139 #define MAC_MII_ACC_MII_BUSY_           BIT(0)
 140 
 141 #define MAC_MII_DATA                    (0x124)
 142 
 143 #define MAC_EEE_TX_LPI_REQ_DLY_CNT              (0x130)
 144 
 145 #define MAC_WUCSR                               (0x140)
 146 #define MAC_WUCSR_RFE_WAKE_EN_                  BIT(14)
 147 #define MAC_WUCSR_PFDA_EN_                      BIT(3)
 148 #define MAC_WUCSR_WAKE_EN_                      BIT(2)
 149 #define MAC_WUCSR_MPEN_                         BIT(1)
 150 #define MAC_WUCSR_BCST_EN_                      BIT(0)
 151 
 152 #define MAC_WK_SRC                              (0x144)
 153 
 154 #define MAC_WUF_CFG0                    (0x150)
 155 #define MAC_NUM_OF_WUF_CFG              (32)
 156 #define MAC_WUF_CFG_BEGIN               (MAC_WUF_CFG0)
 157 #define MAC_WUF_CFG(index)              (MAC_WUF_CFG_BEGIN + (4 * (index)))
 158 #define MAC_WUF_CFG_EN_                 BIT(31)
 159 #define MAC_WUF_CFG_TYPE_MCAST_         (0x02000000)
 160 #define MAC_WUF_CFG_TYPE_ALL_           (0x01000000)
 161 #define MAC_WUF_CFG_OFFSET_SHIFT_       (16)
 162 #define MAC_WUF_CFG_CRC16_MASK_         (0x0000FFFF)
 163 
 164 #define MAC_WUF_MASK0_0                 (0x200)
 165 #define MAC_WUF_MASK0_1                 (0x204)
 166 #define MAC_WUF_MASK0_2                 (0x208)
 167 #define MAC_WUF_MASK0_3                 (0x20C)
 168 #define MAC_WUF_MASK0_BEGIN             (MAC_WUF_MASK0_0)
 169 #define MAC_WUF_MASK1_BEGIN             (MAC_WUF_MASK0_1)
 170 #define MAC_WUF_MASK2_BEGIN             (MAC_WUF_MASK0_2)
 171 #define MAC_WUF_MASK3_BEGIN             (MAC_WUF_MASK0_3)
 172 #define MAC_WUF_MASK0(index)            (MAC_WUF_MASK0_BEGIN + (0x10 * (index)))
 173 #define MAC_WUF_MASK1(index)            (MAC_WUF_MASK1_BEGIN + (0x10 * (index)))
 174 #define MAC_WUF_MASK2(index)            (MAC_WUF_MASK2_BEGIN + (0x10 * (index)))
 175 #define MAC_WUF_MASK3(index)            (MAC_WUF_MASK3_BEGIN + (0x10 * (index)))
 176 
 177 /* offset 0x400 - 0x500, x may range from 0 to 32, for a total of 33 entries */
 178 #define RFE_ADDR_FILT_HI(x)             (0x400 + (8 * (x)))
 179 #define RFE_ADDR_FILT_HI_VALID_         BIT(31)
 180 
 181 /* offset 0x404 - 0x504, x may range from 0 to 32, for a total of 33 entries */
 182 #define RFE_ADDR_FILT_LO(x)             (0x404 + (8 * (x)))
 183 
 184 #define RFE_CTL                         (0x508)
 185 #define RFE_CTL_AB_                     BIT(10)
 186 #define RFE_CTL_AM_                     BIT(9)
 187 #define RFE_CTL_AU_                     BIT(8)
 188 #define RFE_CTL_MCAST_HASH_             BIT(3)
 189 #define RFE_CTL_DA_PERFECT_             BIT(1)
 190 
 191 #define RFE_RSS_CFG                     (0x554)
 192 #define RFE_RSS_CFG_UDP_IPV6_EX_        BIT(16)
 193 #define RFE_RSS_CFG_TCP_IPV6_EX_        BIT(15)
 194 #define RFE_RSS_CFG_IPV6_EX_            BIT(14)
 195 #define RFE_RSS_CFG_UDP_IPV6_           BIT(13)
 196 #define RFE_RSS_CFG_TCP_IPV6_           BIT(12)
 197 #define RFE_RSS_CFG_IPV6_               BIT(11)
 198 #define RFE_RSS_CFG_UDP_IPV4_           BIT(10)
 199 #define RFE_RSS_CFG_TCP_IPV4_           BIT(9)
 200 #define RFE_RSS_CFG_IPV4_               BIT(8)
 201 #define RFE_RSS_CFG_VALID_HASH_BITS_    (0x000000E0)
 202 #define RFE_RSS_CFG_RSS_QUEUE_ENABLE_   BIT(2)
 203 #define RFE_RSS_CFG_RSS_HASH_STORE_     BIT(1)
 204 #define RFE_RSS_CFG_RSS_ENABLE_         BIT(0)
 205 
 206 #define RFE_HASH_KEY(index)             (0x558 + (index << 2))
 207 
 208 #define RFE_INDX(index)                 (0x580 + (index << 2))
 209 
 210 #define MAC_WUCSR2                      (0x600)
 211 
 212 #define INT_STS                         (0x780)
 213 #define INT_BIT_DMA_RX_(channel)        BIT(24 + (channel))
 214 #define INT_BIT_ALL_RX_                 (0x0F000000)
 215 #define INT_BIT_DMA_TX_(channel)        BIT(16 + (channel))
 216 #define INT_BIT_ALL_TX_                 (0x000F0000)
 217 #define INT_BIT_SW_GP_                  BIT(9)
 218 #define INT_BIT_1588_                   BIT(7)
 219 #define INT_BIT_ALL_OTHER_              (INT_BIT_SW_GP_ | INT_BIT_1588_)
 220 #define INT_BIT_MAS_                    BIT(0)
 221 
 222 #define INT_SET                         (0x784)
 223 
 224 #define INT_EN_SET                      (0x788)
 225 
 226 #define INT_EN_CLR                      (0x78C)
 227 
 228 #define INT_STS_R2C                     (0x790)
 229 
 230 #define INT_VEC_EN_SET                  (0x794)
 231 #define INT_VEC_EN_CLR                  (0x798)
 232 #define INT_VEC_EN_AUTO_CLR             (0x79C)
 233 #define INT_VEC_EN_(vector_index)       BIT(0 + vector_index)
 234 
 235 #define INT_VEC_MAP0                    (0x7A0)
 236 #define INT_VEC_MAP0_RX_VEC_(channel, vector)   \
 237         (((u32)(vector)) << ((channel) << 2))
 238 
 239 #define INT_VEC_MAP1                    (0x7A4)
 240 #define INT_VEC_MAP1_TX_VEC_(channel, vector)   \
 241         (((u32)(vector)) << ((channel) << 2))
 242 
 243 #define INT_VEC_MAP2                    (0x7A8)
 244 
 245 #define INT_MOD_MAP0                    (0x7B0)
 246 
 247 #define INT_MOD_MAP1                    (0x7B4)
 248 
 249 #define INT_MOD_MAP2                    (0x7B8)
 250 
 251 #define INT_MOD_CFG0                    (0x7C0)
 252 #define INT_MOD_CFG1                    (0x7C4)
 253 #define INT_MOD_CFG2                    (0x7C8)
 254 #define INT_MOD_CFG3                    (0x7CC)
 255 #define INT_MOD_CFG4                    (0x7D0)
 256 #define INT_MOD_CFG5                    (0x7D4)
 257 #define INT_MOD_CFG6                    (0x7D8)
 258 #define INT_MOD_CFG7                    (0x7DC)
 259 
 260 #define PTP_CMD_CTL                                     (0x0A00)
 261 #define PTP_CMD_CTL_PTP_CLK_STP_NSEC_                   BIT(6)
 262 #define PTP_CMD_CTL_PTP_CLOCK_STEP_SEC_                 BIT(5)
 263 #define PTP_CMD_CTL_PTP_CLOCK_LOAD_                     BIT(4)
 264 #define PTP_CMD_CTL_PTP_CLOCK_READ_                     BIT(3)
 265 #define PTP_CMD_CTL_PTP_ENABLE_                         BIT(2)
 266 #define PTP_CMD_CTL_PTP_DISABLE_                        BIT(1)
 267 #define PTP_CMD_CTL_PTP_RESET_                          BIT(0)
 268 #define PTP_GENERAL_CONFIG                              (0x0A04)
 269 #define PTP_GENERAL_CONFIG_CLOCK_EVENT_X_MASK_(channel) \
 270         (0x7 << (1 + ((channel) << 2)))
 271 #define PTP_GENERAL_CONFIG_CLOCK_EVENT_100NS_   (0)
 272 #define PTP_GENERAL_CONFIG_CLOCK_EVENT_10US_    (1)
 273 #define PTP_GENERAL_CONFIG_CLOCK_EVENT_100US_   (2)
 274 #define PTP_GENERAL_CONFIG_CLOCK_EVENT_1MS_     (3)
 275 #define PTP_GENERAL_CONFIG_CLOCK_EVENT_10MS_    (4)
 276 #define PTP_GENERAL_CONFIG_CLOCK_EVENT_200MS_   (5)
 277 #define PTP_GENERAL_CONFIG_CLOCK_EVENT_X_SET_(channel, value) \
 278         (((value) & 0x7) << (1 + ((channel) << 2)))
 279 #define PTP_GENERAL_CONFIG_RELOAD_ADD_X_(channel)       (BIT((channel) << 2))
 280 
 281 #define PTP_INT_STS                             (0x0A08)
 282 #define PTP_INT_EN_SET                          (0x0A0C)
 283 #define PTP_INT_EN_CLR                          (0x0A10)
 284 #define PTP_INT_BIT_TX_SWTS_ERR_                BIT(13)
 285 #define PTP_INT_BIT_TX_TS_                      BIT(12)
 286 #define PTP_INT_BIT_TIMER_B_                    BIT(1)
 287 #define PTP_INT_BIT_TIMER_A_                    BIT(0)
 288 
 289 #define PTP_CLOCK_SEC                           (0x0A14)
 290 #define PTP_CLOCK_NS                            (0x0A18)
 291 #define PTP_CLOCK_SUBNS                         (0x0A1C)
 292 #define PTP_CLOCK_RATE_ADJ                      (0x0A20)
 293 #define PTP_CLOCK_RATE_ADJ_DIR_                 BIT(31)
 294 #define PTP_CLOCK_STEP_ADJ                      (0x0A2C)
 295 #define PTP_CLOCK_STEP_ADJ_DIR_                 BIT(31)
 296 #define PTP_CLOCK_STEP_ADJ_VALUE_MASK_          (0x3FFFFFFF)
 297 #define PTP_CLOCK_TARGET_SEC_X(channel)         (0x0A30 + ((channel) << 4))
 298 #define PTP_CLOCK_TARGET_NS_X(channel)          (0x0A34 + ((channel) << 4))
 299 #define PTP_CLOCK_TARGET_RELOAD_SEC_X(channel)  (0x0A38 + ((channel) << 4))
 300 #define PTP_CLOCK_TARGET_RELOAD_NS_X(channel)   (0x0A3C + ((channel) << 4))
 301 #define PTP_LATENCY                             (0x0A5C)
 302 #define PTP_LATENCY_TX_SET_(tx_latency)         (((u32)(tx_latency)) << 16)
 303 #define PTP_LATENCY_RX_SET_(rx_latency)         \
 304         (((u32)(rx_latency)) & 0x0000FFFF)
 305 #define PTP_CAP_INFO                            (0x0A60)
 306 #define PTP_CAP_INFO_TX_TS_CNT_GET_(reg_val)    (((reg_val) & 0x00000070) >> 4)
 307 
 308 #define PTP_TX_MOD                              (0x0AA4)
 309 #define PTP_TX_MOD_TX_PTP_SYNC_TS_INSERT_       (0x10000000)
 310 
 311 #define PTP_TX_MOD2                             (0x0AA8)
 312 #define PTP_TX_MOD2_TX_PTP_CLR_UDPV4_CHKSUM_    (0x00000001)
 313 
 314 #define PTP_TX_EGRESS_SEC                       (0x0AAC)
 315 #define PTP_TX_EGRESS_NS                        (0x0AB0)
 316 #define PTP_TX_EGRESS_NS_CAPTURE_CAUSE_MASK_    (0xC0000000)
 317 #define PTP_TX_EGRESS_NS_CAPTURE_CAUSE_AUTO_    (0x00000000)
 318 #define PTP_TX_EGRESS_NS_CAPTURE_CAUSE_SW_      (0x40000000)
 319 #define PTP_TX_EGRESS_NS_TS_NS_MASK_            (0x3FFFFFFF)
 320 
 321 #define PTP_TX_MSG_HEADER                       (0x0AB4)
 322 #define PTP_TX_MSG_HEADER_MSG_TYPE_             (0x000F0000)
 323 #define PTP_TX_MSG_HEADER_MSG_TYPE_SYNC_        (0x00000000)
 324 
 325 #define DMAC_CFG                                (0xC00)
 326 #define DMAC_CFG_COAL_EN_                       BIT(16)
 327 #define DMAC_CFG_CH_ARB_SEL_RX_HIGH_            (0x00000000)
 328 #define DMAC_CFG_MAX_READ_REQ_MASK_             (0x00000070)
 329 #define DMAC_CFG_MAX_READ_REQ_SET_(val) \
 330         ((((u32)(val)) << 4) & DMAC_CFG_MAX_READ_REQ_MASK_)
 331 #define DMAC_CFG_MAX_DSPACE_16_                 (0x00000000)
 332 #define DMAC_CFG_MAX_DSPACE_32_                 (0x00000001)
 333 #define DMAC_CFG_MAX_DSPACE_64_                 BIT(1)
 334 #define DMAC_CFG_MAX_DSPACE_128_                (0x00000003)
 335 
 336 #define DMAC_COAL_CFG                           (0xC04)
 337 #define DMAC_COAL_CFG_TIMER_LIMIT_MASK_         (0xFFF00000)
 338 #define DMAC_COAL_CFG_TIMER_LIMIT_SET_(val)     \
 339         ((((u32)(val)) << 20) & DMAC_COAL_CFG_TIMER_LIMIT_MASK_)
 340 #define DMAC_COAL_CFG_TIMER_TX_START_           BIT(19)
 341 #define DMAC_COAL_CFG_FLUSH_INTS_               BIT(18)
 342 #define DMAC_COAL_CFG_INT_EXIT_COAL_            BIT(17)
 343 #define DMAC_COAL_CFG_CSR_EXIT_COAL_            BIT(16)
 344 #define DMAC_COAL_CFG_TX_THRES_MASK_            (0x0000FF00)
 345 #define DMAC_COAL_CFG_TX_THRES_SET_(val)        \
 346         ((((u32)(val)) << 8) & DMAC_COAL_CFG_TX_THRES_MASK_)
 347 #define DMAC_COAL_CFG_RX_THRES_MASK_            (0x000000FF)
 348 #define DMAC_COAL_CFG_RX_THRES_SET_(val)        \
 349         (((u32)(val)) & DMAC_COAL_CFG_RX_THRES_MASK_)
 350 
 351 #define DMAC_OBFF_CFG                           (0xC08)
 352 #define DMAC_OBFF_TX_THRES_MASK_                (0x0000FF00)
 353 #define DMAC_OBFF_TX_THRES_SET_(val)    \
 354         ((((u32)(val)) << 8) & DMAC_OBFF_TX_THRES_MASK_)
 355 #define DMAC_OBFF_RX_THRES_MASK_                (0x000000FF)
 356 #define DMAC_OBFF_RX_THRES_SET_(val)    \
 357         (((u32)(val)) & DMAC_OBFF_RX_THRES_MASK_)
 358 
 359 #define DMAC_CMD                                (0xC0C)
 360 #define DMAC_CMD_SWR_                           BIT(31)
 361 #define DMAC_CMD_TX_SWR_(channel)               BIT(24 + (channel))
 362 #define DMAC_CMD_START_T_(channel)              BIT(20 + (channel))
 363 #define DMAC_CMD_STOP_T_(channel)               BIT(16 + (channel))
 364 #define DMAC_CMD_RX_SWR_(channel)               BIT(8 + (channel))
 365 #define DMAC_CMD_START_R_(channel)              BIT(4 + (channel))
 366 #define DMAC_CMD_STOP_R_(channel)               BIT(0 + (channel))
 367 
 368 #define DMAC_INT_STS                            (0xC10)
 369 #define DMAC_INT_EN_SET                         (0xC14)
 370 #define DMAC_INT_EN_CLR                         (0xC18)
 371 #define DMAC_INT_BIT_RXFRM_(channel)            BIT(16 + (channel))
 372 #define DMAC_INT_BIT_TX_IOC_(channel)           BIT(0 + (channel))
 373 
 374 #define RX_CFG_A(channel)                       (0xC40 + ((channel) << 6))
 375 #define RX_CFG_A_RX_WB_ON_INT_TMR_              BIT(30)
 376 #define RX_CFG_A_RX_WB_THRES_MASK_              (0x1F000000)
 377 #define RX_CFG_A_RX_WB_THRES_SET_(val)  \
 378         ((((u32)(val)) << 24) & RX_CFG_A_RX_WB_THRES_MASK_)
 379 #define RX_CFG_A_RX_PF_THRES_MASK_              (0x001F0000)
 380 #define RX_CFG_A_RX_PF_THRES_SET_(val)  \
 381         ((((u32)(val)) << 16) & RX_CFG_A_RX_PF_THRES_MASK_)
 382 #define RX_CFG_A_RX_PF_PRI_THRES_MASK_          (0x00001F00)
 383 #define RX_CFG_A_RX_PF_PRI_THRES_SET_(val)      \
 384         ((((u32)(val)) << 8) & RX_CFG_A_RX_PF_PRI_THRES_MASK_)
 385 #define RX_CFG_A_RX_HP_WB_EN_                   BIT(5)
 386 
 387 #define RX_CFG_B(channel)                       (0xC44 + ((channel) << 6))
 388 #define RX_CFG_B_TS_ALL_RX_                     BIT(29)
 389 #define RX_CFG_B_RX_PAD_MASK_                   (0x03000000)
 390 #define RX_CFG_B_RX_PAD_0_                      (0x00000000)
 391 #define RX_CFG_B_RX_PAD_2_                      (0x02000000)
 392 #define RX_CFG_B_RDMABL_512_                    (0x00040000)
 393 #define RX_CFG_B_RX_RING_LEN_MASK_              (0x0000FFFF)
 394 
 395 #define RX_BASE_ADDRH(channel)                  (0xC48 + ((channel) << 6))
 396 
 397 #define RX_BASE_ADDRL(channel)                  (0xC4C + ((channel) << 6))
 398 
 399 #define RX_HEAD_WRITEBACK_ADDRH(channel)        (0xC50 + ((channel) << 6))
 400 
 401 #define RX_HEAD_WRITEBACK_ADDRL(channel)        (0xC54 + ((channel) << 6))
 402 
 403 #define RX_HEAD(channel)                        (0xC58 + ((channel) << 6))
 404 
 405 #define RX_TAIL(channel)                        (0xC5C + ((channel) << 6))
 406 #define RX_TAIL_SET_TOP_INT_EN_                 BIT(30)
 407 #define RX_TAIL_SET_TOP_INT_VEC_EN_             BIT(29)
 408 
 409 #define RX_CFG_C(channel)                       (0xC64 + ((channel) << 6))
 410 #define RX_CFG_C_RX_TOP_INT_EN_AUTO_CLR_        BIT(6)
 411 #define RX_CFG_C_RX_INT_EN_R2C_                 BIT(4)
 412 #define RX_CFG_C_RX_DMA_INT_STS_AUTO_CLR_       BIT(3)
 413 #define RX_CFG_C_RX_INT_STS_R2C_MODE_MASK_      (0x00000007)
 414 
 415 #define TX_CFG_A(channel)                       (0xD40 + ((channel) << 6))
 416 #define TX_CFG_A_TX_HP_WB_ON_INT_TMR_           BIT(30)
 417 #define TX_CFG_A_TX_TMR_HPWB_SEL_IOC_           (0x10000000)
 418 #define TX_CFG_A_TX_PF_THRES_MASK_              (0x001F0000)
 419 #define TX_CFG_A_TX_PF_THRES_SET_(value)        \
 420         ((((u32)(value)) << 16) & TX_CFG_A_TX_PF_THRES_MASK_)
 421 #define TX_CFG_A_TX_PF_PRI_THRES_MASK_          (0x00001F00)
 422 #define TX_CFG_A_TX_PF_PRI_THRES_SET_(value)    \
 423         ((((u32)(value)) << 8) & TX_CFG_A_TX_PF_PRI_THRES_MASK_)
 424 #define TX_CFG_A_TX_HP_WB_EN_                   BIT(5)
 425 #define TX_CFG_A_TX_HP_WB_THRES_MASK_           (0x0000000F)
 426 #define TX_CFG_A_TX_HP_WB_THRES_SET_(value)     \
 427         (((u32)(value)) & TX_CFG_A_TX_HP_WB_THRES_MASK_)
 428 
 429 #define TX_CFG_B(channel)                       (0xD44 + ((channel) << 6))
 430 #define TX_CFG_B_TDMABL_512_                    (0x00040000)
 431 #define TX_CFG_B_TX_RING_LEN_MASK_              (0x0000FFFF)
 432 
 433 #define TX_BASE_ADDRH(channel)                  (0xD48 + ((channel) << 6))
 434 
 435 #define TX_BASE_ADDRL(channel)                  (0xD4C + ((channel) << 6))
 436 
 437 #define TX_HEAD_WRITEBACK_ADDRH(channel)        (0xD50 + ((channel) << 6))
 438 
 439 #define TX_HEAD_WRITEBACK_ADDRL(channel)        (0xD54 + ((channel) << 6))
 440 
 441 #define TX_HEAD(channel)                        (0xD58 + ((channel) << 6))
 442 
 443 #define TX_TAIL(channel)                        (0xD5C + ((channel) << 6))
 444 #define TX_TAIL_SET_DMAC_INT_EN_                BIT(31)
 445 #define TX_TAIL_SET_TOP_INT_EN_                 BIT(30)
 446 #define TX_TAIL_SET_TOP_INT_VEC_EN_             BIT(29)
 447 
 448 #define TX_CFG_C(channel)                       (0xD64 + ((channel) << 6))
 449 #define TX_CFG_C_TX_TOP_INT_EN_AUTO_CLR_        BIT(6)
 450 #define TX_CFG_C_TX_DMA_INT_EN_AUTO_CLR_        BIT(5)
 451 #define TX_CFG_C_TX_INT_EN_R2C_                 BIT(4)
 452 #define TX_CFG_C_TX_DMA_INT_STS_AUTO_CLR_       BIT(3)
 453 #define TX_CFG_C_TX_INT_STS_R2C_MODE_MASK_      (0x00000007)
 454 
 455 #define OTP_PWR_DN                              (0x1000)
 456 #define OTP_PWR_DN_PWRDN_N_                     BIT(0)
 457 
 458 #define OTP_ADDR_HIGH                           (0x1004)
 459 #define OTP_ADDR_LOW                            (0x1008)
 460 
 461 #define OTP_PRGM_DATA                           (0x1010)
 462 
 463 #define OTP_PRGM_MODE                           (0x1014)
 464 #define OTP_PRGM_MODE_BYTE_                     BIT(0)
 465 
 466 #define OTP_READ_DATA                           (0x1018)
 467 
 468 #define OTP_FUNC_CMD                            (0x1020)
 469 #define OTP_FUNC_CMD_READ_                      BIT(0)
 470 
 471 #define OTP_TST_CMD                             (0x1024)
 472 #define OTP_TST_CMD_PRGVRFY_                    BIT(3)
 473 
 474 #define OTP_CMD_GO                              (0x1028)
 475 #define OTP_CMD_GO_GO_                          BIT(0)
 476 
 477 #define OTP_STATUS                              (0x1030)
 478 #define OTP_STATUS_BUSY_                        BIT(0)
 479 
 480 /* MAC statistics registers */
 481 #define STAT_RX_FCS_ERRORS                      (0x1200)
 482 #define STAT_RX_ALIGNMENT_ERRORS                (0x1204)
 483 #define STAT_RX_FRAGMENT_ERRORS                 (0x1208)
 484 #define STAT_RX_JABBER_ERRORS                   (0x120C)
 485 #define STAT_RX_UNDERSIZE_FRAME_ERRORS          (0x1210)
 486 #define STAT_RX_OVERSIZE_FRAME_ERRORS           (0x1214)
 487 #define STAT_RX_DROPPED_FRAMES                  (0x1218)
 488 #define STAT_RX_UNICAST_BYTE_COUNT              (0x121C)
 489 #define STAT_RX_BROADCAST_BYTE_COUNT            (0x1220)
 490 #define STAT_RX_MULTICAST_BYTE_COUNT            (0x1224)
 491 #define STAT_RX_UNICAST_FRAMES                  (0x1228)
 492 #define STAT_RX_BROADCAST_FRAMES                (0x122C)
 493 #define STAT_RX_MULTICAST_FRAMES                (0x1230)
 494 #define STAT_RX_PAUSE_FRAMES                    (0x1234)
 495 #define STAT_RX_64_BYTE_FRAMES                  (0x1238)
 496 #define STAT_RX_65_127_BYTE_FRAMES              (0x123C)
 497 #define STAT_RX_128_255_BYTE_FRAMES             (0x1240)
 498 #define STAT_RX_256_511_BYTES_FRAMES            (0x1244)
 499 #define STAT_RX_512_1023_BYTE_FRAMES            (0x1248)
 500 #define STAT_RX_1024_1518_BYTE_FRAMES           (0x124C)
 501 #define STAT_RX_GREATER_1518_BYTE_FRAMES        (0x1250)
 502 #define STAT_RX_TOTAL_FRAMES                    (0x1254)
 503 #define STAT_EEE_RX_LPI_TRANSITIONS             (0x1258)
 504 #define STAT_EEE_RX_LPI_TIME                    (0x125C)
 505 #define STAT_RX_COUNTER_ROLLOVER_STATUS         (0x127C)
 506 
 507 #define STAT_TX_FCS_ERRORS                      (0x1280)
 508 #define STAT_TX_EXCESS_DEFERRAL_ERRORS          (0x1284)
 509 #define STAT_TX_CARRIER_ERRORS                  (0x1288)
 510 #define STAT_TX_BAD_BYTE_COUNT                  (0x128C)
 511 #define STAT_TX_SINGLE_COLLISIONS               (0x1290)
 512 #define STAT_TX_MULTIPLE_COLLISIONS             (0x1294)
 513 #define STAT_TX_EXCESSIVE_COLLISION             (0x1298)
 514 #define STAT_TX_LATE_COLLISIONS                 (0x129C)
 515 #define STAT_TX_UNICAST_BYTE_COUNT              (0x12A0)
 516 #define STAT_TX_BROADCAST_BYTE_COUNT            (0x12A4)
 517 #define STAT_TX_MULTICAST_BYTE_COUNT            (0x12A8)
 518 #define STAT_TX_UNICAST_FRAMES                  (0x12AC)
 519 #define STAT_TX_BROADCAST_FRAMES                (0x12B0)
 520 #define STAT_TX_MULTICAST_FRAMES                (0x12B4)
 521 #define STAT_TX_PAUSE_FRAMES                    (0x12B8)
 522 #define STAT_TX_64_BYTE_FRAMES                  (0x12BC)
 523 #define STAT_TX_65_127_BYTE_FRAMES              (0x12C0)
 524 #define STAT_TX_128_255_BYTE_FRAMES             (0x12C4)
 525 #define STAT_TX_256_511_BYTES_FRAMES            (0x12C8)
 526 #define STAT_TX_512_1023_BYTE_FRAMES            (0x12CC)
 527 #define STAT_TX_1024_1518_BYTE_FRAMES           (0x12D0)
 528 #define STAT_TX_GREATER_1518_BYTE_FRAMES        (0x12D4)
 529 #define STAT_TX_TOTAL_FRAMES                    (0x12D8)
 530 #define STAT_EEE_TX_LPI_TRANSITIONS             (0x12DC)
 531 #define STAT_EEE_TX_LPI_TIME                    (0x12E0)
 532 #define STAT_TX_COUNTER_ROLLOVER_STATUS         (0x12FC)
 533 
 534 /* End of Register definitions */
 535 
 536 #define LAN743X_MAX_RX_CHANNELS         (4)
 537 #define LAN743X_MAX_TX_CHANNELS         (1)
 538 struct lan743x_adapter;
 539 
 540 #define LAN743X_USED_RX_CHANNELS        (4)
 541 #define LAN743X_USED_TX_CHANNELS        (1)
 542 #define LAN743X_INT_MOD (400)
 543 
 544 #if (LAN743X_USED_RX_CHANNELS > LAN743X_MAX_RX_CHANNELS)
 545 #error Invalid LAN743X_USED_RX_CHANNELS
 546 #endif
 547 #if (LAN743X_USED_TX_CHANNELS > LAN743X_MAX_TX_CHANNELS)
 548 #error Invalid LAN743X_USED_TX_CHANNELS
 549 #endif
 550 
 551 /* PCI */
 552 /* SMSC acquired EFAR late 1990's, MCHP acquired SMSC 2012 */
 553 #define PCI_VENDOR_ID_SMSC              PCI_VENDOR_ID_EFAR
 554 #define PCI_DEVICE_ID_SMSC_LAN7430      (0x7430)
 555 #define PCI_DEVICE_ID_SMSC_LAN7431      (0x7431)
 556 
 557 #define PCI_CONFIG_LENGTH               (0x1000)
 558 
 559 /* CSR */
 560 #define CSR_LENGTH                                      (0x2000)
 561 
 562 #define LAN743X_CSR_FLAG_IS_A0                          BIT(0)
 563 #define LAN743X_CSR_FLAG_IS_B0                          BIT(1)
 564 #define LAN743X_CSR_FLAG_SUPPORTS_INTR_AUTO_SET_CLR     BIT(8)
 565 
 566 struct lan743x_csr {
 567         u32 flags;
 568         u8 __iomem *csr_address;
 569         u32 id_rev;
 570         u32 fpga_rev;
 571 };
 572 
 573 /* INTERRUPTS */
 574 typedef void(*lan743x_vector_handler)(void *context, u32 int_sts, u32 flags);
 575 
 576 #define LAN743X_VECTOR_FLAG_IRQ_SHARED                  BIT(0)
 577 #define LAN743X_VECTOR_FLAG_SOURCE_STATUS_READ          BIT(1)
 578 #define LAN743X_VECTOR_FLAG_SOURCE_STATUS_R2C           BIT(2)
 579 #define LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C           BIT(3)
 580 #define LAN743X_VECTOR_FLAG_SOURCE_ENABLE_CHECK         BIT(4)
 581 #define LAN743X_VECTOR_FLAG_SOURCE_ENABLE_CLEAR         BIT(5)
 582 #define LAN743X_VECTOR_FLAG_SOURCE_ENABLE_R2C           BIT(6)
 583 #define LAN743X_VECTOR_FLAG_MASTER_ENABLE_CLEAR         BIT(7)
 584 #define LAN743X_VECTOR_FLAG_MASTER_ENABLE_SET           BIT(8)
 585 #define LAN743X_VECTOR_FLAG_VECTOR_ENABLE_ISR_CLEAR     BIT(9)
 586 #define LAN743X_VECTOR_FLAG_VECTOR_ENABLE_ISR_SET       BIT(10)
 587 #define LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_CLEAR    BIT(11)
 588 #define LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_SET      BIT(12)
 589 #define LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_CLEAR    BIT(13)
 590 #define LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET      BIT(14)
 591 #define LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR    BIT(15)
 592 
 593 struct lan743x_vector {
 594         int                     irq;
 595         u32                     flags;
 596         struct lan743x_adapter  *adapter;
 597         int                     vector_index;
 598         u32                     int_mask;
 599         lan743x_vector_handler  handler;
 600         void                    *context;
 601 };
 602 
 603 #define LAN743X_MAX_VECTOR_COUNT        (8)
 604 
 605 struct lan743x_intr {
 606         int                     flags;
 607 
 608         unsigned int            irq;
 609 
 610         struct lan743x_vector   vector_list[LAN743X_MAX_VECTOR_COUNT];
 611         int                     number_of_vectors;
 612         bool                    using_vectors;
 613 
 614         int                     software_isr_flag;
 615 };
 616 
 617 #define LAN743X_MAX_FRAME_SIZE                  (9 * 1024)
 618 
 619 /* PHY */
 620 struct lan743x_phy {
 621         bool    fc_autoneg;
 622         u8      fc_request_control;
 623 };
 624 
 625 /* TX */
 626 struct lan743x_tx_descriptor;
 627 struct lan743x_tx_buffer_info;
 628 
 629 #define GPIO_QUEUE_STARTED              (0)
 630 #define GPIO_TX_FUNCTION                (1)
 631 #define GPIO_TX_COMPLETION              (2)
 632 #define GPIO_TX_FRAGMENT                (3)
 633 
 634 #define TX_FRAME_FLAG_IN_PROGRESS       BIT(0)
 635 
 636 #define TX_TS_FLAG_TIMESTAMPING_ENABLED BIT(0)
 637 #define TX_TS_FLAG_ONE_STEP_SYNC        BIT(1)
 638 
 639 struct lan743x_tx {
 640         struct lan743x_adapter *adapter;
 641         u32     ts_flags;
 642         u32     vector_flags;
 643         int     channel_number;
 644 
 645         int     ring_size;
 646         size_t  ring_allocation_size;
 647         struct lan743x_tx_descriptor *ring_cpu_ptr;
 648         dma_addr_t ring_dma_ptr;
 649         /* ring_lock: used to prevent concurrent access to tx ring */
 650         spinlock_t ring_lock;
 651         u32             frame_flags;
 652         u32             frame_first;
 653         u32             frame_data0;
 654         u32             frame_tail;
 655 
 656         struct lan743x_tx_buffer_info *buffer_info;
 657 
 658         u32             *head_cpu_ptr;
 659         dma_addr_t      head_dma_ptr;
 660         int             last_head;
 661         int             last_tail;
 662 
 663         struct napi_struct napi;
 664 
 665         struct sk_buff *overflow_skb;
 666 };
 667 
 668 void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx,
 669                                       bool enable_timestamping,
 670                                       bool enable_onestep_sync);
 671 
 672 /* RX */
 673 struct lan743x_rx_descriptor;
 674 struct lan743x_rx_buffer_info;
 675 
 676 struct lan743x_rx {
 677         struct lan743x_adapter *adapter;
 678         u32     vector_flags;
 679         int     channel_number;
 680 
 681         int     ring_size;
 682         size_t  ring_allocation_size;
 683         struct lan743x_rx_descriptor *ring_cpu_ptr;
 684         dma_addr_t ring_dma_ptr;
 685 
 686         struct lan743x_rx_buffer_info *buffer_info;
 687 
 688         u32             *head_cpu_ptr;
 689         dma_addr_t      head_dma_ptr;
 690         u32             last_head;
 691         u32             last_tail;
 692 
 693         struct napi_struct napi;
 694 
 695         u32             frame_count;
 696 };
 697 
 698 struct lan743x_adapter {
 699         struct net_device       *netdev;
 700         struct mii_bus          *mdiobus;
 701         int                     msg_enable;
 702 #ifdef CONFIG_PM
 703         u32                     wolopts;
 704 #endif
 705         struct pci_dev          *pdev;
 706         struct lan743x_csr      csr;
 707         struct lan743x_intr     intr;
 708 
 709         /* lock, used to prevent concurrent access to data port */
 710         struct mutex            dp_lock;
 711 
 712         struct lan743x_gpio     gpio;
 713         struct lan743x_ptp      ptp;
 714 
 715         u8                      mac_address[ETH_ALEN];
 716 
 717         struct lan743x_phy      phy;
 718         struct lan743x_tx       tx[LAN743X_MAX_TX_CHANNELS];
 719         struct lan743x_rx       rx[LAN743X_MAX_RX_CHANNELS];
 720 
 721 #define LAN743X_ADAPTER_FLAG_OTP                BIT(0)
 722         u32                     flags;
 723 };
 724 
 725 #define LAN743X_COMPONENT_FLAG_RX(channel)  BIT(20 + (channel))
 726 
 727 #define INTR_FLAG_IRQ_REQUESTED(vector_index)   BIT(0 + vector_index)
 728 #define INTR_FLAG_MSI_ENABLED                   BIT(8)
 729 #define INTR_FLAG_MSIX_ENABLED                  BIT(9)
 730 
 731 #define MAC_MII_READ            1
 732 #define MAC_MII_WRITE           0
 733 
 734 #define PHY_FLAG_OPENED     BIT(0)
 735 #define PHY_FLAG_ATTACHED   BIT(1)
 736 
 737 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
 738 #define DMA_ADDR_HIGH32(dma_addr)   ((u32)(((dma_addr) >> 32) & 0xFFFFFFFF))
 739 #else
 740 #define DMA_ADDR_HIGH32(dma_addr)   ((u32)(0))
 741 #endif
 742 #define DMA_ADDR_LOW32(dma_addr) ((u32)((dma_addr) & 0xFFFFFFFF))
 743 #define DMA_DESCRIPTOR_SPACING_16       (16)
 744 #define DMA_DESCRIPTOR_SPACING_32       (32)
 745 #define DMA_DESCRIPTOR_SPACING_64       (64)
 746 #define DMA_DESCRIPTOR_SPACING_128      (128)
 747 #define DEFAULT_DMA_DESCRIPTOR_SPACING  (L1_CACHE_BYTES)
 748 
 749 #define DMAC_CHANNEL_STATE_SET(start_bit, stop_bit) \
 750         (((start_bit) ? 2 : 0) | ((stop_bit) ? 1 : 0))
 751 #define DMAC_CHANNEL_STATE_INITIAL      DMAC_CHANNEL_STATE_SET(0, 0)
 752 #define DMAC_CHANNEL_STATE_STARTED      DMAC_CHANNEL_STATE_SET(1, 0)
 753 #define DMAC_CHANNEL_STATE_STOP_PENDING DMAC_CHANNEL_STATE_SET(1, 1)
 754 #define DMAC_CHANNEL_STATE_STOPPED      DMAC_CHANNEL_STATE_SET(0, 1)
 755 
 756 /* TX Descriptor bits */
 757 #define TX_DESC_DATA0_DTYPE_MASK_               (0xC0000000)
 758 #define TX_DESC_DATA0_DTYPE_DATA_               (0x00000000)
 759 #define TX_DESC_DATA0_DTYPE_EXT_                (0x40000000)
 760 #define TX_DESC_DATA0_FS_                       (0x20000000)
 761 #define TX_DESC_DATA0_LS_                       (0x10000000)
 762 #define TX_DESC_DATA0_EXT_                      (0x08000000)
 763 #define TX_DESC_DATA0_IOC_                      (0x04000000)
 764 #define TX_DESC_DATA0_ICE_                      (0x00400000)
 765 #define TX_DESC_DATA0_IPE_                      (0x00200000)
 766 #define TX_DESC_DATA0_TPE_                      (0x00100000)
 767 #define TX_DESC_DATA0_FCS_                      (0x00020000)
 768 #define TX_DESC_DATA0_TSE_                      (0x00010000)
 769 #define TX_DESC_DATA0_BUF_LENGTH_MASK_          (0x0000FFFF)
 770 #define TX_DESC_DATA0_EXT_LSO_                  (0x00200000)
 771 #define TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_      (0x000FFFFF)
 772 #define TX_DESC_DATA3_FRAME_LENGTH_MSS_MASK_    (0x3FFF0000)
 773 
 774 struct lan743x_tx_descriptor {
 775         u32     data0;
 776         u32     data1;
 777         u32     data2;
 778         u32     data3;
 779 } __aligned(DEFAULT_DMA_DESCRIPTOR_SPACING);
 780 
 781 #define TX_BUFFER_INFO_FLAG_ACTIVE              BIT(0)
 782 #define TX_BUFFER_INFO_FLAG_TIMESTAMP_REQUESTED BIT(1)
 783 #define TX_BUFFER_INFO_FLAG_IGNORE_SYNC         BIT(2)
 784 #define TX_BUFFER_INFO_FLAG_SKB_FRAGMENT        BIT(3)
 785 struct lan743x_tx_buffer_info {
 786         int flags;
 787         struct sk_buff *skb;
 788         dma_addr_t      dma_ptr;
 789         unsigned int    buffer_length;
 790 };
 791 
 792 #define LAN743X_TX_RING_SIZE    (50)
 793 
 794 /* OWN bit is set. ie, Descs are owned by RX DMAC */
 795 #define RX_DESC_DATA0_OWN_                (0x00008000)
 796 /* OWN bit is clear. ie, Descs are owned by host */
 797 #define RX_DESC_DATA0_FS_                 (0x80000000)
 798 #define RX_DESC_DATA0_LS_                 (0x40000000)
 799 #define RX_DESC_DATA0_FRAME_LENGTH_MASK_  (0x3FFF0000)
 800 #define RX_DESC_DATA0_FRAME_LENGTH_GET_(data0)  \
 801         (((data0) & RX_DESC_DATA0_FRAME_LENGTH_MASK_) >> 16)
 802 #define RX_DESC_DATA0_EXT_                (0x00004000)
 803 #define RX_DESC_DATA0_BUF_LENGTH_MASK_    (0x00003FFF)
 804 #define RX_DESC_DATA2_TS_NS_MASK_         (0x3FFFFFFF)
 805 
 806 #if ((NET_IP_ALIGN != 0) && (NET_IP_ALIGN != 2))
 807 #error NET_IP_ALIGN must be 0 or 2
 808 #endif
 809 
 810 #define RX_HEAD_PADDING         NET_IP_ALIGN
 811 
 812 struct lan743x_rx_descriptor {
 813         u32     data0;
 814         u32     data1;
 815         u32     data2;
 816         u32     data3;
 817 } __aligned(DEFAULT_DMA_DESCRIPTOR_SPACING);
 818 
 819 #define RX_BUFFER_INFO_FLAG_ACTIVE      BIT(0)
 820 struct lan743x_rx_buffer_info {
 821         int flags;
 822         struct sk_buff *skb;
 823 
 824         dma_addr_t      dma_ptr;
 825         unsigned int    buffer_length;
 826 };
 827 
 828 #define LAN743X_RX_RING_SIZE        (65)
 829 
 830 #define RX_PROCESS_RESULT_NOTHING_TO_DO     (0)
 831 #define RX_PROCESS_RESULT_PACKET_RECEIVED   (1)
 832 #define RX_PROCESS_RESULT_PACKET_DROPPED    (2)
 833 
 834 u32 lan743x_csr_read(struct lan743x_adapter *adapter, int offset);
 835 void lan743x_csr_write(struct lan743x_adapter *adapter, int offset, u32 data);
 836 
 837 #endif /* _LAN743X_H */

/* [<][>][^][v][top][bottom][index][help] */