xref: /freebsd/sys/dev/mxge/mxge_mcp.h (revision d4ae33f0721c1b170fe37d97e395228ffcfb3f80)
1 /*******************************************************************************
2 
3 Copyright (c) 2006-2009, Myricom Inc.
4 All rights reserved.
5 
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
8 
9  1. Redistributions of source code must retain the above copyright notice,
10     this list of conditions and the following disclaimer.
11 
12  2. Neither the name of the Myricom Inc, nor the names of its
13     contributors may be used to endorse or promote products derived from
14     this software without specific prior written permission.
15 
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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27 
28 $FreeBSD$
29 ***************************************************************************/
30 
31 #ifndef _myri10ge_mcp_h
32 #define _myri10ge_mcp_h
33 
34 #define MXGEFW_VERSION_MAJOR	1
35 #define MXGEFW_VERSION_MINOR	4
36 
37 #if defined MXGEFW && !defined _stdint_h_
38 typedef signed char          int8_t;
39 typedef signed short        int16_t;
40 typedef signed int          int32_t;
41 typedef signed long long    int64_t;
42 typedef unsigned char       uint8_t;
43 typedef unsigned short     uint16_t;
44 typedef unsigned int       uint32_t;
45 typedef unsigned long long uint64_t;
46 #endif
47 
48 /* 8 Bytes */
49 struct mcp_dma_addr {
50   uint32_t high;
51   uint32_t low;
52 };
53 typedef struct mcp_dma_addr mcp_dma_addr_t;
54 
55 /* 4 Bytes */
56 struct mcp_slot {
57   uint16_t checksum;
58   uint16_t length;
59 };
60 typedef struct mcp_slot mcp_slot_t;
61 
62 #ifdef MXGEFW_NDIS
63 /* 8-byte descriptor, exclusively used by NDIS drivers. */
64 struct mcp_slot_8 {
65   /* Place hash value at the top so it gets written before length.
66    * The driver polls length.
67    */
68   uint32_t hash;
69   uint16_t checksum;
70   uint16_t length;
71 };
72 typedef struct mcp_slot_8 mcp_slot_8_t;
73 
74 /* Two bits of length in mcp_slot are used to indicate hash type. */
75 #define MXGEFW_RSS_HASH_NULL (0 << 14) /* bit 15:14 = 00 */
76 #define MXGEFW_RSS_HASH_IPV4 (1 << 14) /* bit 15:14 = 01 */
77 #define MXGEFW_RSS_HASH_TCP_IPV4 (2 << 14) /* bit 15:14 = 10 */
78 #define MXGEFW_RSS_HASH_MASK (3 << 14) /* bit 15:14 = 11 */
79 #endif
80 
81 /* 64 Bytes */
82 struct mcp_cmd {
83   uint32_t cmd;
84   uint32_t data0;	/* will be low portion if data > 32 bits */
85   /* 8 */
86   uint32_t data1;	/* will be high portion if data > 32 bits */
87   uint32_t data2;	/* currently unused.. */
88   /* 16 */
89   struct mcp_dma_addr response_addr;
90   /* 24 */
91   uint8_t pad[40];
92 };
93 typedef struct mcp_cmd mcp_cmd_t;
94 
95 /* 8 Bytes */
96 struct mcp_cmd_response {
97   uint32_t data;
98   uint32_t result;
99 };
100 typedef struct mcp_cmd_response mcp_cmd_response_t;
101 
102 
103 
104 /*
105    flags used in mcp_kreq_ether_send_t:
106 
107    The SMALL flag is only needed in the first segment. It is raised
108    for packets that are total less or equal 512 bytes.
109 
110    The CKSUM flag must be set in all segments.
111 
112    The PADDED flags is set if the packet needs to be padded, and it
113    must be set for all segments.
114 
115    The  MXGEFW_FLAGS_ALIGN_ODD must be set if the cumulative
116    length of all previous segments was odd.
117 */
118 
119 
120 #define MXGEFW_FLAGS_SMALL      0x1
121 #define MXGEFW_FLAGS_TSO_HDR    0x1
122 #define MXGEFW_FLAGS_FIRST      0x2
123 #define MXGEFW_FLAGS_ALIGN_ODD  0x4
124 #define MXGEFW_FLAGS_CKSUM      0x8
125 #define MXGEFW_FLAGS_TSO_LAST   0x8
126 #define MXGEFW_FLAGS_NO_TSO     0x10
127 #define MXGEFW_FLAGS_TSO_CHOP   0x10
128 #define MXGEFW_FLAGS_TSO_PLD    0x20
129 
130 #define MXGEFW_SEND_SMALL_SIZE  1520
131 #define MXGEFW_MAX_MTU          9400
132 
133 union mcp_pso_or_cumlen {
134   uint16_t pseudo_hdr_offset;
135   uint16_t cum_len;
136 };
137 typedef union mcp_pso_or_cumlen mcp_pso_or_cumlen_t;
138 
139 #define	MXGEFW_MAX_SEND_DESC 12
140 #define MXGEFW_PAD	    2
141 
142 /* 16 Bytes */
143 struct mcp_kreq_ether_send {
144   uint32_t addr_high;
145   uint32_t addr_low;
146   uint16_t pseudo_hdr_offset;
147   uint16_t length;
148   uint8_t  pad;
149   uint8_t  rdma_count;
150   uint8_t  cksum_offset; 	/* where to start computing cksum */
151   uint8_t  flags;	       	/* as defined above */
152 };
153 typedef struct mcp_kreq_ether_send mcp_kreq_ether_send_t;
154 
155 /* 8 Bytes */
156 struct mcp_kreq_ether_recv {
157   uint32_t addr_high;
158   uint32_t addr_low;
159 };
160 typedef struct mcp_kreq_ether_recv mcp_kreq_ether_recv_t;
161 
162 
163 /* Commands */
164 
165 #define	MXGEFW_BOOT_HANDOFF	0xfc0000
166 #define	MXGEFW_BOOT_DUMMY_RDMA	0xfc01c0
167 
168 #define	MXGEFW_ETH_CMD		0xf80000
169 #define	MXGEFW_ETH_SEND_4	0x200000
170 #define	MXGEFW_ETH_SEND_1	0x240000
171 #define	MXGEFW_ETH_SEND_2	0x280000
172 #define	MXGEFW_ETH_SEND_3	0x2c0000
173 #define	MXGEFW_ETH_RECV_SMALL	0x300000
174 #define	MXGEFW_ETH_RECV_BIG	0x340000
175 #define	MXGEFW_ETH_SEND_GO	0x380000
176 #define	MXGEFW_ETH_SEND_STOP	0x3C0000
177 
178 #define	MXGEFW_ETH_SEND(n)		(0x200000 + (((n) & 0x03) * 0x40000))
179 #define	MXGEFW_ETH_SEND_OFFSET(n)	(MXGEFW_ETH_SEND(n) - MXGEFW_ETH_SEND_4)
180 
181 enum myri10ge_mcp_cmd_type {
182   MXGEFW_CMD_NONE = 0,
183   /* Reset the mcp, it is left in a safe state, waiting
184      for the driver to set all its parameters */
185   MXGEFW_CMD_RESET = 1,
186 
187   /* get the version number of the current firmware..
188      (may be available in the eeprom strings..? */
189   MXGEFW_GET_MCP_VERSION = 2,
190 
191 
192   /* Parameters which must be set by the driver before it can
193      issue MXGEFW_CMD_ETHERNET_UP. They persist until the next
194      MXGEFW_CMD_RESET is issued */
195 
196   MXGEFW_CMD_SET_INTRQ_DMA = 3,
197   /* data0 = LSW of the host address
198    * data1 = MSW of the host address
199    * data2 = slice number if multiple slices are used
200    */
201 
202   MXGEFW_CMD_SET_BIG_BUFFER_SIZE = 4,	/* in bytes, power of 2 */
203   MXGEFW_CMD_SET_SMALL_BUFFER_SIZE = 5,	/* in bytes */
204 
205 
206   /* Parameters which refer to lanai SRAM addresses where the
207      driver must issue PIO writes for various things */
208 
209   MXGEFW_CMD_GET_SEND_OFFSET = 6,
210   MXGEFW_CMD_GET_SMALL_RX_OFFSET = 7,
211   MXGEFW_CMD_GET_BIG_RX_OFFSET = 8,
212   /* data0 = slice number if multiple slices are used */
213 
214   MXGEFW_CMD_GET_IRQ_ACK_OFFSET = 9,
215   MXGEFW_CMD_GET_IRQ_DEASSERT_OFFSET = 10,
216 
217   /* Parameters which refer to rings stored on the MCP,
218      and whose size is controlled by the mcp */
219 
220   MXGEFW_CMD_GET_SEND_RING_SIZE = 11,	/* in bytes */
221   MXGEFW_CMD_GET_RX_RING_SIZE = 12,	/* in bytes */
222 
223   /* Parameters which refer to rings stored in the host,
224      and whose size is controlled by the host.  Note that
225      all must be physically contiguous and must contain
226      a power of 2 number of entries.  */
227 
228   MXGEFW_CMD_SET_INTRQ_SIZE = 13, 	/* in bytes */
229 #define MXGEFW_CMD_SET_INTRQ_SIZE_FLAG_NO_STRICT_SIZE_CHECK  (1U << 31)
230 
231   /* command to bring ethernet interface up.  Above parameters
232      (plus mtu & mac address) must have been exchanged prior
233      to issuing this command  */
234   MXGEFW_CMD_ETHERNET_UP = 14,
235 
236   /* command to bring ethernet interface down.  No further sends
237      or receives may be processed until an MXGEFW_CMD_ETHERNET_UP
238      is issued, and all interrupt queues must be flushed prior
239      to ack'ing this command */
240 
241   MXGEFW_CMD_ETHERNET_DOWN = 15,
242 
243   /* commands the driver may issue live, without resetting
244      the nic.  Note that increasing the mtu "live" should
245      only be done if the driver has already supplied buffers
246      sufficiently large to handle the new mtu.  Decreasing
247      the mtu live is safe */
248 
249   MXGEFW_CMD_SET_MTU = 16,
250   MXGEFW_CMD_GET_INTR_COAL_DELAY_OFFSET = 17,  /* in microseconds */
251   MXGEFW_CMD_SET_STATS_INTERVAL = 18,   /* in microseconds */
252   MXGEFW_CMD_SET_STATS_DMA_OBSOLETE = 19, /* replaced by SET_STATS_DMA_V2 */
253 
254   MXGEFW_ENABLE_PROMISC = 20,
255   MXGEFW_DISABLE_PROMISC = 21,
256   MXGEFW_SET_MAC_ADDRESS = 22,
257 
258   MXGEFW_ENABLE_FLOW_CONTROL = 23,
259   MXGEFW_DISABLE_FLOW_CONTROL = 24,
260 
261   /* do a DMA test
262      data0,data1 = DMA address
263      data2       = RDMA length (MSH), WDMA length (LSH)
264      command return data = repetitions (MSH), 0.5-ms ticks (LSH)
265   */
266   MXGEFW_DMA_TEST = 25,
267 
268   MXGEFW_ENABLE_ALLMULTI = 26,
269   MXGEFW_DISABLE_ALLMULTI = 27,
270 
271   /* returns MXGEFW_CMD_ERROR_MULTICAST
272      if there is no room in the cache
273      data0,MSH(data1) = multicast group address */
274   MXGEFW_JOIN_MULTICAST_GROUP = 28,
275   /* returns MXGEFW_CMD_ERROR_MULTICAST
276      if the address is not in the cache,
277      or is equal to FF-FF-FF-FF-FF-FF
278      data0,MSH(data1) = multicast group address */
279   MXGEFW_LEAVE_MULTICAST_GROUP = 29,
280   MXGEFW_LEAVE_ALL_MULTICAST_GROUPS = 30,
281 
282   MXGEFW_CMD_SET_STATS_DMA_V2 = 31,
283   /* data0, data1 = bus addr,
284    * data2 = sizeof(struct mcp_irq_data) from driver point of view, allows
285    * adding new stuff to mcp_irq_data without changing the ABI
286    *
287    * If multiple slices are used, data2 contains both the size of the
288    * structure (in the lower 16 bits) and the slice number
289    * (in the upper 16 bits).
290    */
291 
292   MXGEFW_CMD_UNALIGNED_TEST = 32,
293   /* same than DMA_TEST (same args) but abort with UNALIGNED on unaligned
294      chipset */
295 
296   MXGEFW_CMD_UNALIGNED_STATUS = 33,
297   /* return data = boolean, true if the chipset is known to be unaligned */
298 
299   MXGEFW_CMD_ALWAYS_USE_N_BIG_BUFFERS = 34,
300   /* data0 = number of big buffers to use.  It must be 0 or a power of 2.
301    * 0 indicates that the NIC consumes as many buffers as they are required
302    * for packet. This is the default behavior.
303    * A power of 2 number indicates that the NIC always uses the specified
304    * number of buffers for each big receive packet.
305    * It is up to the driver to ensure that this value is big enough for
306    * the NIC to be able to receive maximum-sized packets.
307    */
308 
309   MXGEFW_CMD_GET_MAX_RSS_QUEUES = 35,
310   MXGEFW_CMD_ENABLE_RSS_QUEUES = 36,
311   /* data0 = number of slices n (0, 1, ..., n-1) to enable
312    * data1 = interrupt mode | use of multiple transmit queues.
313    * 0=share one INTx/MSI.
314    * 1=use one MSI-X per queue.
315    * If all queues share one interrupt, the driver must have set
316    * RSS_SHARED_INTERRUPT_DMA before enabling queues.
317    * 2=enable both receive and send queues.
318    * Without this bit set, only one send queue (slice 0's send queue)
319    * is enabled.  The receive queues are always enabled.
320    */
321 #define MXGEFW_SLICE_INTR_MODE_SHARED          0x0
322 #define MXGEFW_SLICE_INTR_MODE_ONE_PER_SLICE   0x1
323 #define MXGEFW_SLICE_ENABLE_MULTIPLE_TX_QUEUES 0x2
324 
325   MXGEFW_CMD_GET_RSS_SHARED_INTERRUPT_MASK_OFFSET = 37,
326   MXGEFW_CMD_SET_RSS_SHARED_INTERRUPT_DMA = 38,
327   /* data0, data1 = bus address lsw, msw */
328   MXGEFW_CMD_GET_RSS_TABLE_OFFSET = 39,
329   /* get the offset of the indirection table */
330   MXGEFW_CMD_SET_RSS_TABLE_SIZE = 40,
331   /* set the size of the indirection table */
332   MXGEFW_CMD_GET_RSS_KEY_OFFSET = 41,
333   /* get the offset of the secret key */
334   MXGEFW_CMD_RSS_KEY_UPDATED = 42,
335   /* tell nic that the secret key's been updated */
336   MXGEFW_CMD_SET_RSS_ENABLE = 43,
337   /* data0 = enable/disable rss
338    * 0: disable rss.  nic does not distribute receive packets.
339    * 1: enable rss.  nic distributes receive packets among queues.
340    * data1 = hash type
341    * 1: IPV4            (required by RSS)
342    * 2: TCP_IPV4        (required by RSS)
343    * 3: IPV4 | TCP_IPV4 (required by RSS)
344    * 4: source port
345    * 5: source port + destination port
346    */
347 #define MXGEFW_RSS_HASH_TYPE_IPV4      0x1
348 #define MXGEFW_RSS_HASH_TYPE_TCP_IPV4  0x2
349 #define MXGEFW_RSS_HASH_TYPE_SRC_PORT  0x4
350 #define MXGEFW_RSS_HASH_TYPE_SRC_DST_PORT 0x5
351 #define MXGEFW_RSS_HASH_TYPE_MAX 0x5
352 
353   MXGEFW_CMD_GET_MAX_TSO6_HDR_SIZE = 44,
354   /* Return data = the max. size of the entire headers of a IPv6 TSO packet.
355    * If the header size of a IPv6 TSO packet is larger than the specified
356    * value, then the driver must not use TSO.
357    * This size restriction only applies to IPv6 TSO.
358    * For IPv4 TSO, the maximum size of the headers is fixed, and the NIC
359    * always has enough header buffer to store maximum-sized headers.
360    */
361 
362   MXGEFW_CMD_SET_TSO_MODE = 45,
363   /* data0 = TSO mode.
364    * 0: Linux/FreeBSD style (NIC default)
365    * 1: NDIS/NetBSD style
366    */
367 #define MXGEFW_TSO_MODE_LINUX  0
368 #define MXGEFW_TSO_MODE_NDIS   1
369 
370   MXGEFW_CMD_MDIO_READ = 46,
371   /* data0 = dev_addr (PMA/PMD or PCS ...), data1 = register/addr */
372   MXGEFW_CMD_MDIO_WRITE = 47,
373   /* data0 = dev_addr,  data1 = register/addr, data2 = value  */
374 
375   MXGEFW_CMD_I2C_READ = 48,
376   /* Starts to get a fresh copy of one byte or of the module i2c table, the
377    * obtained data is cached inside the xaui-xfi chip :
378    *   data0 :  0 => get one byte, 1=> get 256 bytes
379    *   data1 :  If data0 == 0: location to refresh
380    *               bit 7:0  register location
381    *               bit 8:15 is the i2c slave addr (0 is interpreted as 0xA1)
382    *               bit 23:16 is the i2c bus number (for multi-port NICs)
383    *            If data0 == 1: unused
384    * The operation might take ~1ms for a single byte or ~65ms when refreshing all 256 bytes
385    * During the i2c operation,  MXGEFW_CMD_I2C_READ or MXGEFW_CMD_I2C_BYTE attempts
386    *  will return MXGEFW_CMD_ERROR_BUSY
387    */
388   MXGEFW_CMD_I2C_BYTE = 49,
389   /* Return the last obtained copy of a given byte in the xfp i2c table
390    * (copy cached during the last relevant MXGEFW_CMD_I2C_READ)
391    *   data0 : index of the desired table entry
392    *  Return data = the byte stored at the requested index in the table
393    */
394 
395   MXGEFW_CMD_GET_VPUMP_OFFSET = 50,
396   /* Return data = NIC memory offset of mcp_vpump_public_global */
397   MXGEFW_CMD_RESET_VPUMP = 51,
398   /* Resets the VPUMP state */
399 
400   MXGEFW_CMD_SET_RSS_MCP_SLOT_TYPE = 52,
401   /* data0 = mcp_slot type to use.
402    * 0 = the default 4B mcp_slot
403    * 1 = 8B mcp_slot_8
404    */
405 #define MXGEFW_RSS_MCP_SLOT_TYPE_MIN        0
406 #define MXGEFW_RSS_MCP_SLOT_TYPE_WITH_HASH  1
407 
408   MXGEFW_CMD_SET_THROTTLE_FACTOR = 53,
409   /* set the throttle factor for ethp_z8e
410      data0 = throttle_factor
411      throttle_factor = 256 * pcie-raw-speed / tx_speed
412      tx_speed = 256 * pcie-raw-speed / throttle_factor
413 
414      For PCI-E x8: pcie-raw-speed == 16Gb/s
415      For PCI-E x4: pcie-raw-speed == 8Gb/s
416 
417      ex1: throttle_factor == 0x1a0 (416), tx_speed == 1.23GB/s == 9.846 Gb/s
418      ex2: throttle_factor == 0x200 (512), tx_speed == 1.0GB/s == 8 Gb/s
419 
420      with tx_boundary == 2048, max-throttle-factor == 8191 => min-speed == 500Mb/s
421      with tx_boundary == 4096, max-throttle-factor == 4095 => min-speed == 1Gb/s
422   */
423 
424   MXGEFW_CMD_VPUMP_UP = 54,
425   /* Allocates VPump Connection, Send Request and Zero copy buffer address tables */
426   MXGEFW_CMD_GET_VPUMP_CLK = 55,
427   /* Get the lanai clock */
428 
429   MXGEFW_CMD_GET_DCA_OFFSET = 56,
430   /* offset of dca control for WDMAs */
431 
432   /* VMWare NetQueue commands */
433   MXGEFW_CMD_NETQ_GET_FILTERS_PER_QUEUE = 57,
434   MXGEFW_CMD_NETQ_ADD_FILTER = 58,
435   /* data0 = filter_id << 16 | queue << 8 | type */
436   /* data1 = MS4 of MAC Addr */
437   /* data2 = LS2_MAC << 16 | VLAN_tag */
438   MXGEFW_CMD_NETQ_DEL_FILTER = 59,
439   /* data0 = filter_id */
440   MXGEFW_CMD_NETQ_QUERY1 = 60,
441   MXGEFW_CMD_NETQ_QUERY2 = 61,
442   MXGEFW_CMD_NETQ_QUERY3 = 62,
443   MXGEFW_CMD_NETQ_QUERY4 = 63,
444 
445   MXGEFW_CMD_RELAX_RXBUFFER_ALIGNMENT = 64,
446   /* When set, small receive buffers can cross page boundaries.
447    * Both small and big receive buffers may start at any address.
448    * This option has performance implications, so use with caution.
449    */
450 };
451 typedef enum myri10ge_mcp_cmd_type myri10ge_mcp_cmd_type_t;
452 
453 
454 enum myri10ge_mcp_cmd_status {
455   MXGEFW_CMD_OK = 0,
456   MXGEFW_CMD_UNKNOWN = 1,
457   MXGEFW_CMD_ERROR_RANGE = 2,
458   MXGEFW_CMD_ERROR_BUSY = 3,
459   MXGEFW_CMD_ERROR_EMPTY = 4,
460   MXGEFW_CMD_ERROR_CLOSED = 5,
461   MXGEFW_CMD_ERROR_HASH_ERROR = 6,
462   MXGEFW_CMD_ERROR_BAD_PORT = 7,
463   MXGEFW_CMD_ERROR_RESOURCES = 8,
464   MXGEFW_CMD_ERROR_MULTICAST = 9,
465   MXGEFW_CMD_ERROR_UNALIGNED = 10,
466   MXGEFW_CMD_ERROR_NO_MDIO = 11,
467   MXGEFW_CMD_ERROR_I2C_FAILURE = 12,
468   MXGEFW_CMD_ERROR_I2C_ABSENT = 13,
469   MXGEFW_CMD_ERROR_BAD_PCIE_LINK = 14
470 };
471 typedef enum myri10ge_mcp_cmd_status myri10ge_mcp_cmd_status_t;
472 
473 
474 #define MXGEFW_OLD_IRQ_DATA_LEN 40
475 
476 struct mcp_irq_data {
477   /* add new counters at the beginning */
478   uint32_t future_use[1];
479   uint32_t dropped_pause;
480   uint32_t dropped_unicast_filtered;
481   uint32_t dropped_bad_crc32;
482   uint32_t dropped_bad_phy;
483   uint32_t dropped_multicast_filtered;
484 /* 40 Bytes */
485   uint32_t send_done_count;
486 
487 #define MXGEFW_LINK_DOWN 0
488 #define MXGEFW_LINK_UP 1
489 #define MXGEFW_LINK_MYRINET 2
490 #define MXGEFW_LINK_UNKNOWN 3
491   uint32_t link_up;
492   uint32_t dropped_link_overflow;
493   uint32_t dropped_link_error_or_filtered;
494   uint32_t dropped_runt;
495   uint32_t dropped_overrun;
496   uint32_t dropped_no_small_buffer;
497   uint32_t dropped_no_big_buffer;
498   uint32_t rdma_tags_available;
499 
500   uint8_t tx_stopped;
501   uint8_t link_down;
502   uint8_t stats_updated;
503   uint8_t valid;
504 };
505 typedef struct mcp_irq_data mcp_irq_data_t;
506 
507 #ifdef MXGEFW_NDIS
508 /* Exclusively used by NDIS drivers */
509 struct mcp_rss_shared_interrupt {
510   uint8_t pad[2];
511   uint8_t queue;
512   uint8_t valid;
513 };
514 #endif
515 
516 /* definitions for NETQ filter type */
517 #define MXGEFW_NETQ_FILTERTYPE_NONE 0
518 #define MXGEFW_NETQ_FILTERTYPE_MACADDR 1
519 #define MXGEFW_NETQ_FILTERTYPE_VLAN 2
520 #define MXGEFW_NETQ_FILTERTYPE_VLANMACADDR 3
521 
522 #endif /* _myri10ge_mcp_h */
523