3 * Marvell Semiconductor <www.marvell.com>
4 * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
6 * based on - Driver for MV64360X ethernet ports
7 * Copyright (C) 2002 rabeeh@galileo.co.il
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
31 /* PHY_BASE_ADR is board specific and can be configured */
32 #if defined (CONFIG_PHY_BASE_ADR)
33 #define PHY_BASE_ADR CONFIG_PHY_BASE_ADR
35 #define PHY_BASE_ADR 0x08 /* default phy base addr */
39 #define INT_CAUSE_UNMASK_ALL 0x0007ffff
40 #define INT_CAUSE_UNMASK_ALL_EXT 0x0011ffff
41 #define MRU_MASK 0xfff1ffff
42 #define PHYADR_MASK 0x0000001f
43 #define PHYREG_MASK 0x0000001f
44 #define QTKNBKT_DEF_VAL 0x3fffffff
45 #define QMTBS_DEF_VAL 0x000003ff
46 #define QTKNRT_DEF_VAL 0x0000fcff
47 #define RXUQ 0 /* Used Rx queue */
48 #define TXUQ 0 /* Used Rx queue */
50 #define to_mvgbe(_d) container_of(_d, struct mvgbe_device, dev)
51 #define MVGBE_REG_WR(adr, val) writel(val, &adr)
52 #define MVGBE_REG_RD(adr) readl(&adr)
53 #define MVGBE_REG_BITS_RESET(adr, val) writel(readl(&adr) & ~(val), &adr)
54 #define MVGBE_REG_BITS_SET(adr, val) writel(readl(&adr) | val, &adr)
56 /* Default port configuration value */
57 #define PRT_CFG_VAL ( \
58 MVGBE_UCAST_MOD_NRML | \
59 MVGBE_DFLT_RXQ(RXUQ) | \
60 MVGBE_DFLT_RX_ARPQ(RXUQ) | \
61 MVGBE_RX_BC_IF_NOT_IP_OR_ARP | \
63 MVGBE_RX_BC_IF_ARP | \
64 MVGBE_CPTR_TCP_FRMS_DIS | \
65 MVGBE_CPTR_UDP_FRMS_DIS | \
66 MVGBE_DFLT_RX_TCPQ(RXUQ) | \
67 MVGBE_DFLT_RX_UDPQ(RXUQ) | \
68 MVGBE_DFLT_RX_BPDUQ(RXUQ))
70 /* Default port extend configuration value */
71 #define PORT_CFG_EXTEND_VALUE \
72 MVGBE_SPAN_BPDU_PACKETS_AS_NORMAL | \
73 MVGBE_PARTITION_DIS | \
74 MVGBE_TX_CRC_GENERATION_EN
76 #define GT_MVGBE_IPG_INT_RX(value) ((value & 0x3fff) << 8)
78 /* Default sdma control value */
79 #define PORT_SDMA_CFG_VALUE ( \
80 MVGBE_RX_BURST_SIZE_16_64BIT | \
81 MVGBE_BLM_RX_NO_SWAP | \
82 MVGBE_BLM_TX_NO_SWAP | \
83 GT_MVGBE_IPG_INT_RX(RXUQ) | \
84 MVGBE_TX_BURST_SIZE_16_64BIT)
86 /* Default port serial control value */
87 #ifndef PORT_SERIAL_CONTROL_VALUE
88 #define PORT_SERIAL_CONTROL_VALUE ( \
89 MVGBE_FORCE_LINK_PASS | \
90 MVGBE_DIS_AUTO_NEG_FOR_DUPLX | \
91 MVGBE_DIS_AUTO_NEG_FOR_FLOW_CTRL | \
92 MVGBE_ADV_NO_FLOW_CTRL | \
93 MVGBE_FORCE_FC_MODE_NO_PAUSE_DIS_TX | \
94 MVGBE_FORCE_BP_MODE_NO_JAM | \
95 (1 << 9) /* Reserved bit has to be 1 */ | \
96 MVGBE_DO_NOT_FORCE_LINK_FAIL | \
97 MVGBE_EN_AUTO_NEG_SPEED_GMII | \
99 MVGBE_MIIPHY_MAC_MODE | \
100 MVGBE_AUTO_NEG_NO_CHANGE | \
101 MVGBE_MAX_RX_PACKET_1552BYTE | \
102 MVGBE_CLR_EXT_LOOPBACK | \
103 MVGBE_SET_FULL_DUPLEX_MODE | \
104 MVGBE_DIS_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX)
107 /* Tx WRR confoguration macros */
108 #define PORT_MAX_TRAN_UNIT 0x24 /* MTU register (default) 9KByte */
109 #define PORT_MAX_TOKEN_BUCKET_SIZE 0x_FFFF /* PMTBS reg (default) */
110 #define PORT_TOKEN_RATE 1023 /* PTTBRC reg (default) */
111 /* MAC accepet/reject macros */
112 #define ACCEPT_MAC_ADDR 0
113 #define REJECT_MAC_ADDR 1
114 /* Size of a Tx/Rx descriptor used in chain list data structure */
115 #define MV_RXQ_DESC_ALIGNED_SIZE \
116 (((sizeof(struct mvgbe_rxdesc) / PKTALIGN) + 1) * PKTALIGN)
117 /* Buffer offset from buffer pointer */
118 #define RX_BUF_OFFSET 0x2
120 /* Port serial status reg (PSR) */
121 #define MVGBE_INTERFACE_GMII_MII 0
122 #define MVGBE_INTERFACE_PCM 1
123 #define MVGBE_LINK_IS_DOWN 0
124 #define MVGBE_LINK_IS_UP (1 << 1)
125 #define MVGBE_PORT_AT_HALF_DUPLEX 0
126 #define MVGBE_PORT_AT_FULL_DUPLEX (1 << 2)
127 #define MVGBE_RX_FLOW_CTRL_DISD 0
128 #define MVGBE_RX_FLOW_CTRL_ENBALED (1 << 3)
129 #define MVGBE_GMII_SPEED_100_10 0
130 #define MVGBE_GMII_SPEED_1000 (1 << 4)
131 #define MVGBE_MII_SPEED_10 0
132 #define MVGBE_MII_SPEED_100 (1 << 5)
133 #define MVGBE_NO_TX 0
134 #define MVGBE_TX_IN_PROGRESS (1 << 7)
135 #define MVGBE_BYPASS_NO_ACTIVE 0
136 #define MVGBE_BYPASS_ACTIVE (1 << 8)
137 #define MVGBE_PORT_NOT_AT_PARTN_STT 0
138 #define MVGBE_PORT_AT_PARTN_STT (1 << 9)
139 #define MVGBE_PORT_TX_FIFO_NOT_EMPTY 0
140 #define MVGBE_PORT_TX_FIFO_EMPTY (1 << 10)
142 /* These macros describes the Port configuration reg (Px_cR) bits */
143 #define MVGBE_UCAST_MOD_NRML 0
144 #define MVGBE_UNICAST_PROMISCUOUS_MODE 1
145 #define MVGBE_DFLT_RXQ(_x) (_x << 1)
146 #define MVGBE_DFLT_RX_ARPQ(_x) (_x << 4)
147 #define MVGBE_RX_BC_IF_NOT_IP_OR_ARP 0
148 #define MVGBE_REJECT_BC_IF_NOT_IP_OR_ARP (1 << 7)
149 #define MVGBE_RX_BC_IF_IP 0
150 #define MVGBE_REJECT_BC_IF_IP (1 << 8)
151 #define MVGBE_RX_BC_IF_ARP 0
152 #define MVGBE_REJECT_BC_IF_ARP (1 << 9)
153 #define MVGBE_TX_AM_NO_UPDATE_ERR_SMRY (1 << 12)
154 #define MVGBE_CPTR_TCP_FRMS_DIS 0
155 #define MVGBE_CPTR_TCP_FRMS_EN (1 << 14)
156 #define MVGBE_CPTR_UDP_FRMS_DIS 0
157 #define MVGBE_CPTR_UDP_FRMS_EN (1 << 15)
158 #define MVGBE_DFLT_RX_TCPQ(_x) (_x << 16)
159 #define MVGBE_DFLT_RX_UDPQ(_x) (_x << 19)
160 #define MVGBE_DFLT_RX_BPDUQ(_x) (_x << 22)
161 #define MVGBE_DFLT_RX_TCP_CHKSUM_MODE (1 << 25)
163 /* These macros describes the Port configuration extend reg (Px_cXR) bits*/
164 #define MVGBE_CLASSIFY_EN 1
165 #define MVGBE_SPAN_BPDU_PACKETS_AS_NORMAL 0
166 #define MVGBE_SPAN_BPDU_PACKETS_TO_RX_Q7 (1 << 1)
167 #define MVGBE_PARTITION_DIS 0
168 #define MVGBE_PARTITION_EN (1 << 2)
169 #define MVGBE_TX_CRC_GENERATION_EN 0
170 #define MVGBE_TX_CRC_GENERATION_DIS (1 << 3)
172 /* These macros describes the Port Sdma configuration reg (SDCR) bits */
174 #define MVGBE_RX_BURST_SIZE_1_64BIT 0
175 #define MVGBE_RX_BURST_SIZE_2_64BIT (1 << 1)
176 #define MVGBE_RX_BURST_SIZE_4_64BIT (1 << 2)
177 #define MVGBE_RX_BURST_SIZE_8_64BIT ((1 << 2) | (1 << 1))
178 #define MVGBE_RX_BURST_SIZE_16_64BIT (1 << 3)
179 #define MVGBE_BLM_RX_NO_SWAP (1 << 4)
180 #define MVGBE_BLM_RX_BYTE_SWAP 0
181 #define MVGBE_BLM_TX_NO_SWAP (1 << 5)
182 #define MVGBE_BLM_TX_BYTE_SWAP 0
183 #define MVGBE_DESCRIPTORS_BYTE_SWAP (1 << 6)
184 #define MVGBE_DESCRIPTORS_NO_SWAP 0
185 #define MVGBE_TX_BURST_SIZE_1_64BIT 0
186 #define MVGBE_TX_BURST_SIZE_2_64BIT (1 << 22)
187 #define MVGBE_TX_BURST_SIZE_4_64BIT (1 << 23)
188 #define MVGBE_TX_BURST_SIZE_8_64BIT ((1 << 23) | (1 << 22))
189 #define MVGBE_TX_BURST_SIZE_16_64BIT (1 << 24)
191 /* These macros describes the Port serial control reg (PSCR) bits */
192 #define MVGBE_SERIAL_PORT_DIS 0
193 #define MVGBE_SERIAL_PORT_EN 1
194 #define MVGBE_FORCE_LINK_PASS (1 << 1)
195 #define MVGBE_DO_NOT_FORCE_LINK_PASS 0
196 #define MVGBE_EN_AUTO_NEG_FOR_DUPLX 0
197 #define MVGBE_DIS_AUTO_NEG_FOR_DUPLX (1 << 2)
198 #define MVGBE_EN_AUTO_NEG_FOR_FLOW_CTRL 0
199 #define MVGBE_DIS_AUTO_NEG_FOR_FLOW_CTRL (1 << 3)
200 #define MVGBE_ADV_NO_FLOW_CTRL 0
201 #define MVGBE_ADV_SYMMETRIC_FLOW_CTRL (1 << 4)
202 #define MVGBE_FORCE_FC_MODE_NO_PAUSE_DIS_TX 0
203 #define MVGBE_FORCE_FC_MODE_TX_PAUSE_DIS (1 << 5)
204 #define MVGBE_FORCE_BP_MODE_NO_JAM 0
205 #define MVGBE_FORCE_BP_MODE_JAM_TX (1 << 7)
206 #define MVGBE_FORCE_BP_MODE_JAM_TX_ON_RX_ERR (1 << 8)
207 #define MVGBE_FORCE_LINK_FAIL 0
208 #define MVGBE_DO_NOT_FORCE_LINK_FAIL (1 << 10)
209 #define MVGBE_DIS_AUTO_NEG_SPEED_GMII (1 << 13)
210 #define MVGBE_EN_AUTO_NEG_SPEED_GMII 0
211 #define MVGBE_DTE_ADV_0 0
212 #define MVGBE_DTE_ADV_1 (1 << 14)
213 #define MVGBE_MIIPHY_MAC_MODE 0
214 #define MVGBE_MIIPHY_PHY_MODE (1 << 15)
215 #define MVGBE_AUTO_NEG_NO_CHANGE 0
216 #define MVGBE_RESTART_AUTO_NEG (1 << 16)
217 #define MVGBE_MAX_RX_PACKET_1518BYTE 0
218 #define MVGBE_MAX_RX_PACKET_1522BYTE (1 << 17)
219 #define MVGBE_MAX_RX_PACKET_1552BYTE (1 << 18)
220 #define MVGBE_MAX_RX_PACKET_9022BYTE ((1 << 18) | (1 << 17))
221 #define MVGBE_MAX_RX_PACKET_9192BYTE (1 << 19)
222 #define MVGBE_MAX_RX_PACKET_9700BYTE ((1 << 19) | (1 << 17))
223 #define MVGBE_SET_EXT_LOOPBACK (1 << 20)
224 #define MVGBE_CLR_EXT_LOOPBACK 0
225 #define MVGBE_SET_FULL_DUPLEX_MODE (1 << 21)
226 #define MVGBE_SET_HALF_DUPLEX_MODE 0
227 #define MVGBE_EN_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX (1 << 22)
228 #define MVGBE_DIS_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX 0
229 #define MVGBE_SET_GMII_SPEED_TO_10_100 0
230 #define MVGBE_SET_GMII_SPEED_TO_1000 (1 << 23)
231 #define MVGBE_SET_MII_SPEED_TO_10 0
232 #define MVGBE_SET_MII_SPEED_TO_100 (1 << 24)
234 /* SMI register fields */
235 #define MVGBE_PHY_SMI_TIMEOUT 10000
236 #define MVGBE_PHY_SMI_DATA_OFFS 0 /* Data */
237 #define MVGBE_PHY_SMI_DATA_MASK (0xffff << MVGBE_PHY_SMI_DATA_OFFS)
238 #define MVGBE_PHY_SMI_DEV_ADDR_OFFS 16 /* PHY device address */
239 #define MVGBE_PHY_SMI_DEV_ADDR_MASK \
240 (PHYADR_MASK << MVGBE_PHY_SMI_DEV_ADDR_OFFS)
241 #define MVGBE_SMI_REG_ADDR_OFFS 21 /* PHY device reg addr */
242 #define MVGBE_SMI_REG_ADDR_MASK \
243 (PHYADR_MASK << MVGBE_SMI_REG_ADDR_OFFS)
244 #define MVGBE_PHY_SMI_OPCODE_OFFS 26 /* Write/Read opcode */
245 #define MVGBE_PHY_SMI_OPCODE_MASK (3 << MVGBE_PHY_SMI_OPCODE_OFFS)
246 #define MVGBE_PHY_SMI_OPCODE_WRITE (0 << MVGBE_PHY_SMI_OPCODE_OFFS)
247 #define MVGBE_PHY_SMI_OPCODE_READ (1 << MVGBE_PHY_SMI_OPCODE_OFFS)
248 #define MVGBE_PHY_SMI_READ_VALID_MASK (1 << 27) /* Read Valid */
249 #define MVGBE_PHY_SMI_BUSY_MASK (1 << 28) /* Busy */
251 /* SDMA command status fields macros */
252 /* Tx & Rx descriptors status */
253 #define MVGBE_ERROR_SUMMARY 1
254 /* Tx & Rx descriptors command */
255 #define MVGBE_BUFFER_OWNED_BY_DMA (1 << 31)
256 /* Tx descriptors status */
257 #define MVGBE_LC_ERROR 0
258 #define MVGBE_UR_ERROR (1 << 1)
259 #define MVGBE_RL_ERROR (1 << 2)
260 #define MVGBE_LLC_SNAP_FORMAT (1 << 9)
261 #define MVGBE_TX_LAST_FRAME (1 << 20)
263 /* Rx descriptors status */
264 #define MVGBE_CRC_ERROR 0
265 #define MVGBE_OVERRUN_ERROR (1 << 1)
266 #define MVGBE_MAX_FRAME_LENGTH_ERROR (1 << 2)
267 #define MVGBE_RESOURCE_ERROR ((1 << 2) | (1 << 1))
268 #define MVGBE_VLAN_TAGGED (1 << 19)
269 #define MVGBE_BPDU_FRAME (1 << 20)
270 #define MVGBE_TCP_FRAME_OVER_IP_V_4 0
271 #define MVGBE_UDP_FRAME_OVER_IP_V_4 (1 << 21)
272 #define MVGBE_OTHER_FRAME_TYPE (1 << 22)
273 #define MVGBE_LAYER_2_IS_MVGBE_V_2 (1 << 23)
274 #define MVGBE_FRAME_TYPE_IP_V_4 (1 << 24)
275 #define MVGBE_FRAME_HEADER_OK (1 << 25)
276 #define MVGBE_RX_LAST_DESC (1 << 26)
277 #define MVGBE_RX_FIRST_DESC (1 << 27)
278 #define MVGBE_UNKNOWN_DESTINATION_ADDR (1 << 28)
279 #define MVGBE_RX_EN_INTERRUPT (1 << 29)
280 #define MVGBE_LAYER_4_CHECKSUM_OK (1 << 30)
282 /* Rx descriptors byte count */
283 #define MVGBE_FRAME_FRAGMENTED (1 << 2)
285 /* Tx descriptors command */
286 #define MVGBE_LAYER_4_CHECKSUM_FIRST_DESC (1 << 10)
287 #define MVGBE_FRAME_SET_TO_VLAN (1 << 15)
288 #define MVGBE_TCP_FRAME 0
289 #define MVGBE_UDP_FRAME (1 << 16)
290 #define MVGBE_GEN_TCP_UDP_CHECKSUM (1 << 17)
291 #define MVGBE_GEN_IP_V_4_CHECKSUM (1 << 18)
292 #define MVGBE_ZERO_PADDING (1 << 19)
293 #define MVGBE_TX_LAST_DESC (1 << 20)
294 #define MVGBE_TX_FIRST_DESC (1 << 21)
295 #define MVGBE_GEN_CRC (1 << 22)
296 #define MVGBE_TX_EN_INTERRUPT (1 << 23)
297 #define MVGBE_AUTO_MODE (1 << 30)
299 /* Address decode parameters */
300 /* Ethernet Base Address Register bits */
301 #define EBAR_TARGET_DRAM 0x00000000
302 #define EBAR_TARGET_DEVICE 0x00000001
303 #define EBAR_TARGET_CBS 0x00000002
304 #define EBAR_TARGET_PCI0 0x00000003
305 #define EBAR_TARGET_PCI1 0x00000004
306 #define EBAR_TARGET_CUNIT 0x00000005
307 #define EBAR_TARGET_AUNIT 0x00000006
308 #define EBAR_TARGET_GUNIT 0x00000007
311 #define EBAR_DRAM_CS0 0x00000E00
312 #define EBAR_DRAM_CS1 0x00000D00
313 #define EBAR_DRAM_CS2 0x00000B00
314 #define EBAR_DRAM_CS3 0x00000700
316 /* DRAM Target interface */
317 #define EBAR_DRAM_NO_CACHE_COHERENCY 0x00000000
318 #define EBAR_DRAM_CACHE_COHERENCY_WT 0x00001000
319 #define EBAR_DRAM_CACHE_COHERENCY_WB 0x00002000
321 /* Device Bus Target interface */
322 #define EBAR_DEVICE_DEVCS0 0x00001E00
323 #define EBAR_DEVICE_DEVCS1 0x00001D00
324 #define EBAR_DEVICE_DEVCS2 0x00001B00
325 #define EBAR_DEVICE_DEVCS3 0x00001700
326 #define EBAR_DEVICE_BOOTCS3 0x00000F00
328 /* PCI Target interface */
329 #define EBAR_PCI_BYTE_SWAP 0x00000000
330 #define EBAR_PCI_NO_SWAP 0x00000100
331 #define EBAR_PCI_BYTE_WORD_SWAP 0x00000200
332 #define EBAR_PCI_WORD_SWAP 0x00000300
333 #define EBAR_PCI_NO_SNOOP_NOT_ASSERT 0x00000000
334 #define EBAR_PCI_NO_SNOOP_ASSERT 0x00000400
335 #define EBAR_PCI_IO_SPACE 0x00000000
336 #define EBAR_PCI_MEMORY_SPACE 0x00000800
337 #define EBAR_PCI_REQ64_FORCE 0x00000000
338 #define EBAR_PCI_REQ64_SIZE 0x00001000
340 /* Window access control */
341 #define EWIN_ACCESS_NOT_ALLOWED 0
342 #define EWIN_ACCESS_READ_ONLY 1
343 #define EWIN_ACCESS_FULL ((1 << 1) | 1)
345 /* structures represents Controller registers */
352 struct mvgbe_rxdesc *rxcdp;
363 struct mvgbe_registers {
368 u8 pad1[0x080 - 0x00c - 4];
371 u8 pad2[0x094 - 0x084 - 4];
374 u8 pad3[0x0b0 - 0x098 - 4];
376 u8 pad3a[0x200 - 0x0b0 - 4];
377 struct mvgbe_barsz barsz[6];
378 u8 pad4[0x280 - 0x22c - 4];
382 u8 pad5[0x400 - 0x294 - 4];
386 u8 pad6[0x410 - 0x408 - 4];
399 u8 pad7[0x460 - 0x454 - 4];
404 u8 pad8[0x474 - 0x46c - 4];
411 u8 pad11[0x494 - 0x488 - 4];
413 u8 pad12[0x4bc - 0x494 - 4];
415 u8 pad13[0x4dc - 0x4bc - 4];
421 u8 pad14[0x60c - 0x4ec - 4];
422 struct mvgbe_rxcdp rxcdp[7];
423 struct mvgbe_rxdesc *rxcdp7;
425 struct mvgbe_txdesc *tcsdp;
426 u8 pad15[0x6c0 - 0x684 - 4];
427 struct mvgbe_txdesc *tcqdp[8];
428 u8 pad16[0x700 - 0x6dc - 4];
429 struct mvgbe_tqx tqx[8];
431 u8 pad17[0x7a8 - 0x780 - 4];
435 u8 pad19[0x7c0 - 0x7b8 - 4];
441 u8 pad21[0x3000 - 0x27d0 - 4];
442 u32 pad20_1[32]; /* mib counter registes */
443 u8 pad22[0x3400 - 0x3000 - sizeof(u32) * 32];
447 u8 pad23[0xe20c0 - 0x7360c - 4];
448 u32 pmbus_top_arbiter;
451 /* structures/enums needed by driver */
469 struct mvgbe_winparam {
470 enum mvgbe_adrwin win; /* Window number */
471 enum mvgbe_target target; /* System targets */
472 u16 attrib; /* BAR attrib. See above macros */
473 u32 base_addr; /* Window base address in u32 form */
474 u32 high_addr; /* Window high address in u32 form */
475 u32 size; /* Size in MBytes. Must be % 64Kbyte. */
476 int enable; /* Enable/disable access to the window. */
477 u16 access_ctrl; /*Access ctrl register. see above macros */
480 struct mvgbe_rxdesc {
481 u32 cmd_sts; /* Descriptor command status */
482 u16 buf_size; /* Buffer size */
483 u16 byte_cnt; /* Descriptor buffer byte count */
484 u8 *buf_ptr; /* Descriptor buffer pointer */
485 struct mvgbe_rxdesc *nxtdesc_p; /* Next descriptor pointer */
488 struct mvgbe_txdesc {
489 u32 cmd_sts; /* Descriptor command status */
490 u16 l4i_chk; /* CPU provided TCP Checksum */
491 u16 byte_cnt; /* Descriptor buffer byte count */
492 u8 *buf_ptr; /* Descriptor buffer ptr */
493 struct mvgbe_txdesc *nxtdesc_p; /* Next descriptor ptr */
496 /* port device data struct */
497 struct mvgbe_device {
498 struct eth_device dev;
499 struct mvgbe_registers *regs;
500 struct mvgbe_txdesc *p_txdesc;
501 struct mvgbe_rxdesc *p_rxdesc;
502 struct mvgbe_rxdesc *p_rxdesc_curr;
507 #endif /* __MVGBE_H__ */