1 /* $NetBSD: hmereg.h,v 1.23 2024/02/05 21:46:06 andvar Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * HME Shared Ethernet Block register offsets 34 */ 35 #define HME_SEBI_RESET (0*4) 36 #define HME_SEBI_CFG (1*4) 37 #define HME_SEBI_STAT (64*4) 38 #define HME_SEBI_IMASK (65*4) 39 40 /* HME SEB bits. */ 41 #define HME_SEB_RESET_ETX 0x00000001 /* reset external transmitter */ 42 #define HME_SEB_RESET_ERX 0x00000002 /* reset external receiver */ 43 44 #define HME_SEB_CFG_BURSTMASK 0x00000003 /* covers all burst bits */ 45 #define HME_SEB_CFG_BURST16 0x00000000 /* 16 byte bursts */ 46 #define HME_SEB_CFG_BURST32 0x00000001 /* 32 byte bursts */ 47 #define HME_SEB_CFG_BURST64 0x00000002 /* 64 byte bursts */ 48 #define HME_SEB_CFG_64BIT 0x00000004 /* 64-bit CEI/SBus DVMA (94) */ 49 #define HME_SEB_CFG_PARITY 0x00000008 /* DVMA & PIO parity check */ 50 #define HME_SEB_CFG_VERS 0xf0000000 /* ether channel version */ 51 #define HME_SEB_CFG_VERSSHIFT 28 52 53 #define HME_SEB_STAT_GOTFRAME 0x00000001 /* frame received */ 54 #define HME_SEB_STAT_RCNTEXP 0x00000002 /* rx frame count expired */ 55 #define HME_SEB_STAT_ACNTEXP 0x00000004 /* align error count expired */ 56 #define HME_SEB_STAT_CCNTEXP 0x00000008 /* crc error count expired */ 57 #define HME_SEB_STAT_LCNTEXP 0x00000010 /* length error count expired */ 58 #define HME_SEB_STAT_RFIFOVF 0x00000020 /* rx fifo overflow */ 59 #define HME_SEB_STAT_CVCNTEXP 0x00000040 /* code violation counter exp */ 60 #define HME_SEB_STAT_STSTERR 0x00000080 /* xif sqe test failed */ 61 #define HME_SEB_STAT_SENTFRAME 0x00000100 /* frame sent */ 62 #define HME_SEB_STAT_TFIFO_UND 0x00000200 /* tx fifo underrun */ 63 #define HME_SEB_STAT_MAXPKTERR 0x00000400 /* max-packet size error */ 64 #define HME_SEB_STAT_NCNTEXP 0x00000800 /* normal collision count exp */ 65 #define HME_SEB_STAT_ECNTEXP 0x00001000 /* excess collision count exp */ 66 #define HME_SEB_STAT_LCCNTEXP 0x00002000 /* late collision count exp */ 67 #define HME_SEB_STAT_FCNTEXP 0x00004000 /* first collision count exp */ 68 #define HME_SEB_STAT_DTIMEXP 0x00008000 /* defer timer expired */ 69 #define HME_SEB_STAT_RXTOHOST 0x00010000 /* pkt moved from rx fifo->memory */ 70 #define HME_SEB_STAT_NORXD 0x00020000 /* out of receive descriptors */ 71 #define HME_SEB_STAT_RXERR 0x00040000 /* rx DMA error */ 72 #define HME_SEB_STAT_RXLATERR 0x00080000 /* late error during rx DMA */ 73 #define HME_SEB_STAT_RXPERR 0x00100000 /* parity error during rx DMA */ 74 #define HME_SEB_STAT_RXTERR 0x00200000 /* tag error during rx DMA */ 75 #define HME_SEB_STAT_EOPERR 0x00400000 /* tx descriptor did not set EOP */ 76 #define HME_SEB_STAT_MIFIRQ 0x00800000 /* mif needs attention */ 77 #define HME_SEB_STAT_HOSTTOTX 0x01000000 /* pkt moved from memory->tx fifo */ 78 #define HME_SEB_STAT_TXALL 0x02000000 /* all pkts in fifo transmitted */ 79 #define HME_SEB_STAT_TXEACK 0x04000000 /* error during tx DMA */ 80 #define HME_SEB_STAT_TXLERR 0x08000000 /* late error during tx DMA */ 81 #define HME_SEB_STAT_TXPERR 0x10000000 /* parity error during tx DMA */ 82 #define HME_SEB_STAT_TXTERR 0x20000000 /* tag error during tx DMA */ 83 #define HME_SEB_STAT_SLVERR 0x40000000 /* pio access error */ 84 #define HME_SEB_STAT_SLVPERR 0x80000000 /* pio access parity error */ 85 #define HME_SEB_STAT_BITS "\177\020" \ 86 "b\0GOTFRAME\0b\1RCNTEXP\0b\2ACNTEXP\0" \ 87 "b\3CCNTEXP\0b\4LCNTEXP\0b\5RFIFOVF\0" \ 88 "b\6CVCNTEXP\0b\7STSTERR\0b\10SENTFRAME\0" \ 89 "b\11TFIFO_UND\0b\12MAXPKTERR\0b\13NCNTEXP\0" \ 90 "b\14ECNTEXP\0b\15LCCNTEXP\0b\16FCNTEXP\0" \ 91 "b\17DTIMEXP\0b\20RXTOHOST\0b\21NORXD\0" \ 92 "b\22RXERR\0b\23RXLATERR\0b\24RXPERR\0" \ 93 "b\25RXTERR\0b\26EOPERR\0b\27MIFIRQ\0" \ 94 "b\30HOSTTOTX\0b\31TXALL\0b\32XTEACK\0" \ 95 "b\33TXLERR\0b\34TXPERR\0b\35TXTERR\0" \ 96 "b\36SLVERR\0b\37SLVPERR\0\0" 97 98 #ifdef HMEDEBUG 99 #define HME_SEB_STAT_DEBUG_ERRORS (HME_SEB_STAT_DTIMEXP | HME_SEB_STAT_RFIFOVF) 100 #else 101 #define HME_SEB_STAT_DEBUG_ERRORS 0 102 #endif 103 104 #define HME_SEB_STAT_ALL_ERRORS \ 105 (HME_SEB_STAT_SLVPERR | HME_SEB_STAT_SLVERR | HME_SEB_STAT_TXTERR |\ 106 HME_SEB_STAT_TXPERR | HME_SEB_STAT_TXLERR | HME_SEB_STAT_TXEACK |\ 107 HME_SEB_STAT_EOPERR | HME_SEB_STAT_RXTERR | HME_SEB_STAT_RXPERR |\ 108 HME_SEB_STAT_RXLATERR | HME_SEB_STAT_RXERR | HME_SEB_STAT_NORXD |\ 109 HME_SEB_STAT_FCNTEXP | HME_SEB_STAT_LCCNTEXP |\ 110 HME_SEB_STAT_ECNTEXP | HME_SEB_STAT_NCNTEXP | HME_SEB_STAT_MAXPKTERR|\ 111 HME_SEB_STAT_TFIFO_UND| HME_SEB_STAT_STSTERR | HME_SEB_STAT_CVCNTEXP |\ 112 HME_SEB_STAT_LCNTEXP | HME_SEB_STAT_CCNTEXP |\ 113 HME_SEB_STAT_ACNTEXP | HME_SEB_STAT_DEBUG_ERRORS) 114 115 #define HME_SEB_STAT_VLAN_ERRORS \ 116 (HME_SEB_STAT_SLVPERR | HME_SEB_STAT_SLVERR | HME_SEB_STAT_TXTERR |\ 117 HME_SEB_STAT_TXPERR | HME_SEB_STAT_TXLERR | HME_SEB_STAT_TXEACK |\ 118 HME_SEB_STAT_EOPERR | HME_SEB_STAT_RXTERR | HME_SEB_STAT_RXPERR |\ 119 HME_SEB_STAT_RXLATERR | HME_SEB_STAT_RXERR | HME_SEB_STAT_NORXD |\ 120 HME_SEB_STAT_DTIMEXP | HME_SEB_STAT_FCNTEXP | HME_SEB_STAT_LCCNTEXP |\ 121 HME_SEB_STAT_ECNTEXP | HME_SEB_STAT_NCNTEXP | \ 122 HME_SEB_STAT_TFIFO_UND| HME_SEB_STAT_STSTERR | HME_SEB_STAT_CVCNTEXP |\ 123 HME_SEB_STAT_RFIFOVF | HME_SEB_STAT_LCNTEXP | HME_SEB_STAT_CCNTEXP |\ 124 HME_SEB_STAT_ACNTEXP) 125 126 /* 127 * HME Transmitter register offsets 128 */ 129 #define HME_ETXI_PENDING (0*4) /* Pending/wakeup */ 130 #define HME_ETXI_CFG (1*4) 131 #define HME_ETXI_RING (2*4) /* Descriptor Ring pointer */ 132 #define HME_ETXI_BBASE (3*4) /* Buffer base address (ro) */ 133 #define HME_ETXI_BDISP (4*4) /* Buffer displacement (ro) */ 134 #define HME_ETXI_FIFO_WPTR (5*4) /* FIFO write pointer */ 135 #define HME_ETXI_FIFO_SWPTR (6*4) /* FIFO shadow write pointer */ 136 #define HME_ETXI_FIFO_RPTR (7*4) /* FIFO read pointer */ 137 #define HME_ETXI_FIFO_SRPTR (8*4) /* FIFO shadow read pointer */ 138 #define HME_ETXI_FIFO_PKTCNT (9*4) /* FIFO packet counter */ 139 #define HME_ETXI_STATEMACHINE (10*4) /* State machine */ 140 #define HME_ETXI_RSIZE (11*4) /* Ring size */ 141 #define HME_ETXI_BPTR (12*4) /* Buffer pointer */ 142 143 144 /* TXI_PENDING bits */ 145 #define HME_ETX_TP_DMAWAKEUP 0x00000001 /* Start tx (rw, auto-clear) */ 146 147 /* TXI_CFG bits */ 148 #define HME_ETX_CFG_DMAENABLE 0x00000001 /* Enable TX DMA */ 149 #define HME_ETX_CFG_FIFOTHRESH 0x000003fe /* TX fifo threshold */ 150 #define HME_ETX_CFG_IRQDAFTER 0x00000400 /* Intr after tx-fifo empty */ 151 #define HME_ETX_CFG_IRQDBEFORE 0x00000000 /* Intr before tx-fifo empty */ 152 153 154 /* 155 * HME Receiver register offsets 156 */ 157 #define HME_ERXI_CFG (0*4) 158 #define HME_ERXI_RING (1*4) /* Descriptor Ring pointer */ 159 #define HME_ERXI_BPTR (2*4) /* Data Buffer pointer (ro) */ 160 #define HME_ERXI_FIFO_WPTR (3*4) /* FIFO write pointer */ 161 #define HME_ERXI_FIFO_SWPTR (4*4) /* FIFO shadow write pointer */ 162 #define HME_ERXI_FIFO_RPTR (5*4) /* FIFO read pointer */ 163 #define HME_ERXI_FIFO_SRPTR (6*4) /* FIFO shadow read pointer */ 164 #define HME_ERXI_STATEMACHINE (7*4) /* State machine */ 165 166 /* ERXI_CFG bits */ 167 #define HME_ERX_CFG_DMAENABLE 0x00000001 /* Enable RX DMA */ 168 #define HME_ERX_CFG_BYTEOFFSET 0x00000038 /* RX first byte offset */ 169 #define HME_ERX_CFG_RINGSIZE32 0x00000000 /* Descriptor ring size: 32 */ 170 #define HME_ERX_CFG_RINGSIZE64 0x00000200 /* Descriptor ring size: 64 */ 171 #define HME_ERX_CFG_RINGSIZE128 0x00000400 /* Descriptor ring size: 128 */ 172 #define HME_ERX_CFG_RINGSIZE256 0x00000600 /* Descriptor ring size: 256 */ 173 #define HME_ERX_CFG_CSUMSTART 0x007f0000 /* cksum offset (half words) */ 174 #define HME_ERX_CFG_CSUMSHIFT 16 175 176 /* 177 * HME MAC-core register offsets 178 */ 179 #define HME_MACI_XIF (0*4) 180 #define HME_MACI_TXSWRST (130*4) /* TX reset */ 181 #define HME_MACI_TXCFG (131*4) /* TX config */ 182 #define HME_MACI_JSIZE (139*4) /* TX jam size */ 183 #define HME_MACI_TXSIZE (140*4) /* TX max size */ 184 #define HME_MACI_NCCNT (144*4) /* TX normal collision cnt */ 185 #define HME_MACI_FCCNT (145*4) /* TX first collision cnt */ 186 #define HME_MACI_EXCNT (146*4) /* TX excess collision cnt */ 187 #define HME_MACI_LTCNT (147*4) /* TX late collision cnt */ 188 #define HME_MACI_RANDSEED (148*4) /* */ 189 #define HME_MACI_RXSWRST (194*4) /* RX reset */ 190 #define HME_MACI_RXCFG (195*4) /* RX config */ 191 #define HME_MACI_RXSIZE (196*4) /* RX max size */ 192 #define HME_MACI_MACADDR2 (198*4) /* MAC address */ 193 #define HME_MACI_MACADDR1 (199*4) 194 #define HME_MACI_MACADDR0 (200*4) 195 #define HME_MACI_STAT_RCNT (201*4) /* RX frame count */ 196 #define HME_MACI_STAT_LCNT (202*4) /* Length error count */ 197 #define HME_MACI_STAT_ACNT (203*4) /* Align error count */ 198 #define HME_MACI_STAT_CCNT (204*4) /* FCS error count */ 199 #define HME_MACI_STATE (205*4) /* RX_MAC state machine */ 200 #define HME_MACI_STAT_CVCNT (206*4) /* Code violation count */ 201 #define HME_MACI_HASHTAB3 (208*4) /* Address hash table */ 202 #define HME_MACI_HASHTAB2 (209*4) 203 #define HME_MACI_HASHTAB1 (210*4) 204 #define HME_MACI_HASHTAB0 (211*4) 205 #define HME_MACI_AFILTER2 (212*4) /* Address filter */ 206 #define HME_MACI_AFILTER1 (213*4) 207 #define HME_MACI_AFILTER0 (214*4) 208 #define HME_MACI_AFILTER_MASK (215*4) 209 210 /* XIF config register. */ 211 #define HME_MAC_XIF_OE 0x00000001 /* Output driver enable */ 212 #define HME_MAC_XIF_XLBACK 0x00000002 /* Loopback-mode XIF enable */ 213 #define HME_MAC_XIF_MLBACK 0x00000004 /* Loopback-mode MII enable */ 214 #define HME_MAC_XIF_MIIENABLE 0x00000008 /* MII receive buffer enable */ 215 #define HME_MAC_XIF_SQENABLE 0x00000010 /* SQE test enable */ 216 #define HME_MAC_XIF_SQETWIN 0x000003e0 /* SQE time window */ 217 #define HME_MAC_XIF_LANCE 0x00000010 /* Lance mode enable */ 218 #define HME_MAC_XIF_LIPG0 0x000003e0 /* Lance mode IPG0 */ 219 #define HME_MAC_XIF_BITS "\177\020" \ 220 "b\0OE\0b\1XLBACK\0b\2MLBACK\0" \ 221 "b\4MIIENA\0b\4SQEENA\0\0" 222 223 /* Transmit config register. */ 224 #define HME_MAC_TXCFG_ENABLE 0x00000001 /* Enable the transmitter */ 225 #define HME_MAC_TXCFG_SMODE 0x00000020 /* Enable slow transmit mode */ 226 #define HME_MAC_TXCFG_CIGN 0x00000040 /* Ignore transmit collisions */ 227 #define HME_MAC_TXCFG_FCSOFF 0x00000080 /* Do not emit FCS */ 228 #define HME_MAC_TXCFG_DBACKOFF 0x00000100 /* Disable backoff */ 229 #define HME_MAC_TXCFG_FULLDPLX 0x00000200 /* Enable full-duplex */ 230 #define HME_MAC_TXCFG_DGIVEUP 0x00000400 /* Don't give up on transmits */ 231 #define HME_MAC_TXCFG_BITS "\177\020" \ 232 "b\0ENA\0b\6SMODE\0b\7IGNCOLL\0" \ 233 "b\x8_FCSOFF\0b\x9_DBACKOFF\0" \ 234 "b\xa_FULLDPLX\0b\xc_DGIVEUP\0\0" 235 236 /* Receive config register. */ 237 #define HME_MAC_RXCFG_ENABLE 0x00000001 /* Enable the receiver */ 238 #define HME_MAC_RXCFG_PSTRIP 0x00000020 /* Pad byte strip enable */ 239 #define HME_MAC_RXCFG_PMISC 0x00000040 /* Enable promiscuous mode */ 240 #define HME_MAC_RXCFG_DERR 0x00000080 /* Disable error checking */ 241 #define HME_MAC_RXCFG_DCRCS 0x00000100 /* Disable CRC stripping */ 242 #define HME_MAC_RXCFG_ME 0x00000200 /* Receive packets addressed to me */ 243 #define HME_MAC_RXCFG_PGRP 0x00000400 /* Enable promisc group mode */ 244 #define HME_MAC_RXCFG_HENABLE 0x00000800 /* Enable the hash filter */ 245 #define HME_MAC_RXCFG_AENABLE 0x00001000 /* Enable the address filter */ 246 #define HME_MAC_RXCFG_BITS "\177\020" \ 247 "b\0ENA\0b\6PSTRIP\0b\7PMISC\0" \ 248 "b\x8ERRDIS\0b\x9CRCDIS\0b\xaME\0" \ 249 "b\xbPGRP\0b\xcHASHENA\0\xd_ADDRENA\0\0" 250 251 /* 252 * HME MIF register offsets 253 */ 254 #define HME_MIFI_BB_CLK (0*4) /* bit-bang clock */ 255 #define HME_MIFI_BB_DATA (1*4) /* bit-bang data */ 256 #define HME_MIFI_BB_OE (2*4) /* bit-bang output enable */ 257 #define HME_MIFI_FO (3*4) /* frame output */ 258 #define HME_MIFI_CFG (4*4) /* */ 259 #define HME_MIFI_IMASK (5*4) /* Interrupt mask for status change */ 260 #define HME_MIFI_STAT (6*4) /* Status (ro, auto-clear) */ 261 #define HME_MIFI_SM (7*4) /* State machine (ro) */ 262 263 /* MIF Configuration register */ 264 #define HME_MIF_CFG_PHY 0x00000001 /* PHY select */ 265 #define HME_MIF_CFG_PE 0x00000002 /* Poll enable */ 266 #define HME_MIF_CFG_BBMODE 0x00000004 /* Bit-bang mode */ 267 #define HME_MIF_CFG_PRADDR 0x000000f8 /* Poll register address */ 268 #define HME_MIF_CFG_MDI0 0x00000100 /* MDI_0 (ro) */ 269 #define HME_MIF_CFG_MDI1 0x00000200 /* MDI_1 (ro) */ 270 #define HME_MIF_CFG_PPADDR 0x00007c00 /* Poll phy address */ 271 #define HME_MIF_CFG_BITS "\177\020" \ 272 "b\0PHYEXT\0b\1POLLENA\0b\3BBMODE\0" \ 273 "b\x8MDI0\0b\x9MDI1\0\0" 274 275 /* MIF Frame/Output register */ 276 #define HME_MIF_FO_ST 0xc0000000 /* Start of frame */ 277 #define HME_MIF_FO_ST_SHIFT 30 /* */ 278 #define HME_MIF_FO_OPC 0x30000000 /* Opcode */ 279 #define HME_MIF_FO_OPC_SHIFT 28 /* */ 280 #define HME_MIF_FO_PHYAD 0x0f800000 /* PHY Address */ 281 #define HME_MIF_FO_PHYAD_SHIFT 23 /* */ 282 #define HME_MIF_FO_REGAD 0x007c0000 /* Register Address */ 283 #define HME_MIF_FO_REGAD_SHIFT 18 /* */ 284 #define HME_MIF_FO_TAMSB 0x00020000 /* Turn-around MSB */ 285 #define HME_MIF_FO_TALSB 0x00010000 /* Turn-around LSB */ 286 #define HME_MIF_FO_DATA 0x0000ffff /* data to read or write */ 287 288 /* Wired HME PHY addresses */ 289 #define HME_PHYAD_INTERNAL 1 290 #define HME_PHYAD_EXTERNAL 0 291 292 /* 293 * Buffer Descriptors. 294 */ 295 #ifdef notdef 296 struct hme_xd { 297 volatile uint32_t xd_flags; 298 volatile uint32_t xd_addr; /* Buffer address (DMA) */ 299 }; 300 #endif 301 #define HME_XD_SIZE 8 302 #define HME_XD_FLAGS(b, i) ((char *)(b) + ((i) * HME_XD_SIZE) + 0) 303 #define HME_XD_ADDR(b, i) ((char *)(b) + ((i) * HME_XD_SIZE) + 4) 304 #define HME_XD_GETFLAGS(p, b, i) \ 305 (p) ? le32toh(*((uint32_t *)HME_XD_FLAGS(b,i))) : \ 306 (*((uint32_t *)HME_XD_FLAGS(b,i))) 307 #define HME_XD_SETFLAGS(p, b, i, f) do { \ 308 *((uint32_t *)HME_XD_FLAGS(b,i)) = ((p) ? htole32((f)) : (f)); \ 309 } while(/* CONSTCOND */ 0) 310 #define HME_XD_SETADDR(p, b, i, a) do { \ 311 *((uint32_t *)HME_XD_ADDR(b,i)) = ((p) ? htole32((a)) : (a)); \ 312 } while(/* CONSTCOND */ 0) 313 314 /* Descriptor control word flag values */ 315 #define HME_XD_OWN 0x80000000 /* ownership: 1=hw, 0=sw */ 316 #define HME_XD_SOP 0x40000000 /* start of packet marker (tx) */ 317 #define HME_XD_OFL 0x40000000 /* buffer overflow (rx) */ 318 #define HME_XD_EOP 0x20000000 /* end of packet marker (tx) */ 319 #define HME_XD_TXCKSUM 0x10000000 /* checksum enable (tx) */ 320 #define HME_XD_TXCSSTUFF 0xff00000 /* checksum stuff offset (tx) */ 321 #define HME_XD_TXCSSTUFFSHIFT 20 322 #define HME_XD_TXCSSTART 0x000fc000 /* checksum start offset (tx) */ 323 #define HME_XD_TXCSSTARTSHIFT 14 324 #define HME_XD_TXLENMSK 0x00003fff /* packet length mask (tx) */ 325 326 #define HME_XD_RXLENMSK 0x3fff0000 /* packet length mask (rx) */ 327 #define HME_XD_RXLENSHIFT 16 328 #define HME_XD_RXCKSUM 0x0000ffff /* packet checksum (rx), complement */ 329 330 /* Macros to encode/decode the receive buffer size from the flags field */ 331 #define HME_XD_ENCODE_RSIZE(sz) \ 332 (((sz) << HME_XD_RXLENSHIFT) & HME_XD_RXLENMSK) 333 #define HME_XD_DECODE_RSIZE(flags) \ 334 (((flags) & HME_XD_RXLENMSK) >> HME_XD_RXLENSHIFT) 335 336 /* Provide encode/decode macros for the transmit buffers for symmetry */ 337 #define HME_XD_ENCODE_TSIZE(sz) \ 338 (((sz) << 0) & HME_XD_TXLENMSK) 339 #define HME_XD_DECODE_TSIZE(flags) \ 340 (((flags) & HME_XD_TXLENMSK) >> 0) 341 342