xref: /freebsd/sys/dev/mxge/mxge_mcp.h (revision fe6060f10f634930ff71b7c50291ddc610da2475)
1 /*******************************************************************************
2 SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 
4 Copyright (c) 2006-2009, Myricom Inc.
5 All rights reserved.
6 
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
9 
10  1. Redistributions of source code must retain the above copyright notice,
11     this list of conditions and the following disclaimer.
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13  2. Neither the name of the Myricom Inc, nor the names of its
14     contributors may be used to endorse or promote products derived from
15     this software without specific prior written permission.
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17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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19 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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28 
29 $FreeBSD$
30 ***************************************************************************/
31 
32 #ifndef _myri10ge_mcp_h
33 #define _myri10ge_mcp_h
34 
35 #define MXGEFW_VERSION_MAJOR	1
36 #define MXGEFW_VERSION_MINOR	4
37 
38 #if defined MXGEFW && !defined _stdint_h_
39 typedef signed char          int8_t;
40 typedef signed short        int16_t;
41 typedef signed int          int32_t;
42 typedef signed long long    int64_t;
43 typedef unsigned char       uint8_t;
44 typedef unsigned short     uint16_t;
45 typedef unsigned int       uint32_t;
46 typedef unsigned long long uint64_t;
47 #endif
48 
49 /* 8 Bytes */
50 struct mcp_dma_addr {
51   uint32_t high;
52   uint32_t low;
53 };
54 typedef struct mcp_dma_addr mcp_dma_addr_t;
55 
56 /* 4 Bytes */
57 struct mcp_slot {
58   uint16_t checksum;
59   uint16_t length;
60 };
61 typedef struct mcp_slot mcp_slot_t;
62 
63 #ifdef MXGEFW_NDIS
64 /* 8-byte descriptor, exclusively used by NDIS drivers. */
65 struct mcp_slot_8 {
66   /* Place hash value at the top so it gets written before length.
67    * The driver polls length.
68    */
69   uint32_t hash;
70   uint16_t checksum;
71   uint16_t length;
72 };
73 typedef struct mcp_slot_8 mcp_slot_8_t;
74 
75 /* Two bits of length in mcp_slot are used to indicate hash type. */
76 #define MXGEFW_RSS_HASH_NULL (0 << 14) /* bit 15:14 = 00 */
77 #define MXGEFW_RSS_HASH_IPV4 (1 << 14) /* bit 15:14 = 01 */
78 #define MXGEFW_RSS_HASH_TCP_IPV4 (2 << 14) /* bit 15:14 = 10 */
79 #define MXGEFW_RSS_HASH_MASK (3 << 14) /* bit 15:14 = 11 */
80 #endif
81 
82 /* 64 Bytes */
83 struct mcp_cmd {
84   uint32_t cmd;
85   uint32_t data0;	/* will be low portion if data > 32 bits */
86   /* 8 */
87   uint32_t data1;	/* will be high portion if data > 32 bits */
88   uint32_t data2;	/* currently unused.. */
89   /* 16 */
90   struct mcp_dma_addr response_addr;
91   /* 24 */
92   uint8_t pad[40];
93 };
94 typedef struct mcp_cmd mcp_cmd_t;
95 
96 /* 8 Bytes */
97 struct mcp_cmd_response {
98   uint32_t data;
99   uint32_t result;
100 };
101 typedef struct mcp_cmd_response mcp_cmd_response_t;
102 
103 /*
104    flags used in mcp_kreq_ether_send_t:
105 
106    The SMALL flag is only needed in the first segment. It is raised
107    for packets that are total less or equal 512 bytes.
108 
109    The CKSUM flag must be set in all segments.
110 
111    The PADDED flags is set if the packet needs to be padded, and it
112    must be set for all segments.
113 
114    The  MXGEFW_FLAGS_ALIGN_ODD must be set if the cumulative
115    length of all previous segments was odd.
116 */
117 
118 #define MXGEFW_FLAGS_SMALL      0x1
119 #define MXGEFW_FLAGS_TSO_HDR    0x1
120 #define MXGEFW_FLAGS_FIRST      0x2
121 #define MXGEFW_FLAGS_ALIGN_ODD  0x4
122 #define MXGEFW_FLAGS_CKSUM      0x8
123 #define MXGEFW_FLAGS_TSO_LAST   0x8
124 #define MXGEFW_FLAGS_NO_TSO     0x10
125 #define MXGEFW_FLAGS_TSO_CHOP   0x10
126 #define MXGEFW_FLAGS_TSO_PLD    0x20
127 
128 #define MXGEFW_SEND_SMALL_SIZE  1520
129 #define MXGEFW_MAX_MTU          9400
130 
131 union mcp_pso_or_cumlen {
132   uint16_t pseudo_hdr_offset;
133   uint16_t cum_len;
134 };
135 typedef union mcp_pso_or_cumlen mcp_pso_or_cumlen_t;
136 
137 #define	MXGEFW_MAX_SEND_DESC 12
138 #define MXGEFW_PAD	    2
139 
140 /* 16 Bytes */
141 struct mcp_kreq_ether_send {
142   uint32_t addr_high;
143   uint32_t addr_low;
144   uint16_t pseudo_hdr_offset;
145   uint16_t length;
146   uint8_t  pad;
147   uint8_t  rdma_count;
148   uint8_t  cksum_offset; 	/* where to start computing cksum */
149   uint8_t  flags;	       	/* as defined above */
150 };
151 typedef struct mcp_kreq_ether_send mcp_kreq_ether_send_t;
152 
153 /* 8 Bytes */
154 struct mcp_kreq_ether_recv {
155   uint32_t addr_high;
156   uint32_t addr_low;
157 };
158 typedef struct mcp_kreq_ether_recv mcp_kreq_ether_recv_t;
159 
160 /* Commands */
161 
162 #define	MXGEFW_BOOT_HANDOFF	0xfc0000
163 #define	MXGEFW_BOOT_DUMMY_RDMA	0xfc01c0
164 
165 #define	MXGEFW_ETH_CMD		0xf80000
166 #define	MXGEFW_ETH_SEND_4	0x200000
167 #define	MXGEFW_ETH_SEND_1	0x240000
168 #define	MXGEFW_ETH_SEND_2	0x280000
169 #define	MXGEFW_ETH_SEND_3	0x2c0000
170 #define	MXGEFW_ETH_RECV_SMALL	0x300000
171 #define	MXGEFW_ETH_RECV_BIG	0x340000
172 #define	MXGEFW_ETH_SEND_GO	0x380000
173 #define	MXGEFW_ETH_SEND_STOP	0x3C0000
174 
175 #define	MXGEFW_ETH_SEND(n)		(0x200000 + (((n) & 0x03) * 0x40000))
176 #define	MXGEFW_ETH_SEND_OFFSET(n)	(MXGEFW_ETH_SEND(n) - MXGEFW_ETH_SEND_4)
177 
178 enum myri10ge_mcp_cmd_type {
179   MXGEFW_CMD_NONE = 0,
180   /* Reset the mcp, it is left in a safe state, waiting
181      for the driver to set all its parameters */
182   MXGEFW_CMD_RESET = 1,
183 
184   /* get the version number of the current firmware..
185      (may be available in the eeprom strings..? */
186   MXGEFW_GET_MCP_VERSION = 2,
187 
188   /* Parameters which must be set by the driver before it can
189      issue MXGEFW_CMD_ETHERNET_UP. They persist until the next
190      MXGEFW_CMD_RESET is issued */
191 
192   MXGEFW_CMD_SET_INTRQ_DMA = 3,
193   /* data0 = LSW of the host address
194    * data1 = MSW of the host address
195    * data2 = slice number if multiple slices are used
196    */
197 
198   MXGEFW_CMD_SET_BIG_BUFFER_SIZE = 4,	/* in bytes, power of 2 */
199   MXGEFW_CMD_SET_SMALL_BUFFER_SIZE = 5,	/* in bytes */
200 
201 
202   /* Parameters which refer to lanai SRAM addresses where the
203      driver must issue PIO writes for various things */
204 
205   MXGEFW_CMD_GET_SEND_OFFSET = 6,
206   MXGEFW_CMD_GET_SMALL_RX_OFFSET = 7,
207   MXGEFW_CMD_GET_BIG_RX_OFFSET = 8,
208   /* data0 = slice number if multiple slices are used */
209 
210   MXGEFW_CMD_GET_IRQ_ACK_OFFSET = 9,
211   MXGEFW_CMD_GET_IRQ_DEASSERT_OFFSET = 10,
212 
213   /* Parameters which refer to rings stored on the MCP,
214      and whose size is controlled by the mcp */
215 
216   MXGEFW_CMD_GET_SEND_RING_SIZE = 11,	/* in bytes */
217   MXGEFW_CMD_GET_RX_RING_SIZE = 12,	/* in bytes */
218 
219   /* Parameters which refer to rings stored in the host,
220      and whose size is controlled by the host.  Note that
221      all must be physically contiguous and must contain
222      a power of 2 number of entries.  */
223 
224   MXGEFW_CMD_SET_INTRQ_SIZE = 13, 	/* in bytes */
225 #define MXGEFW_CMD_SET_INTRQ_SIZE_FLAG_NO_STRICT_SIZE_CHECK  (1U << 31)
226 
227   /* command to bring ethernet interface up.  Above parameters
228      (plus mtu & mac address) must have been exchanged prior
229      to issuing this command  */
230   MXGEFW_CMD_ETHERNET_UP = 14,
231 
232   /* command to bring ethernet interface down.  No further sends
233      or receives may be processed until an MXGEFW_CMD_ETHERNET_UP
234      is issued, and all interrupt queues must be flushed prior
235      to ack'ing this command */
236 
237   MXGEFW_CMD_ETHERNET_DOWN = 15,
238 
239   /* commands the driver may issue live, without resetting
240      the nic.  Note that increasing the mtu "live" should
241      only be done if the driver has already supplied buffers
242      sufficiently large to handle the new mtu.  Decreasing
243      the mtu live is safe */
244 
245   MXGEFW_CMD_SET_MTU = 16,
246   MXGEFW_CMD_GET_INTR_COAL_DELAY_OFFSET = 17,  /* in microseconds */
247   MXGEFW_CMD_SET_STATS_INTERVAL = 18,   /* in microseconds */
248   MXGEFW_CMD_SET_STATS_DMA_OBSOLETE = 19, /* replaced by SET_STATS_DMA_V2 */
249 
250   MXGEFW_ENABLE_PROMISC = 20,
251   MXGEFW_DISABLE_PROMISC = 21,
252   MXGEFW_SET_MAC_ADDRESS = 22,
253 
254   MXGEFW_ENABLE_FLOW_CONTROL = 23,
255   MXGEFW_DISABLE_FLOW_CONTROL = 24,
256 
257   /* do a DMA test
258      data0,data1 = DMA address
259      data2       = RDMA length (MSH), WDMA length (LSH)
260      command return data = repetitions (MSH), 0.5-ms ticks (LSH)
261   */
262   MXGEFW_DMA_TEST = 25,
263 
264   MXGEFW_ENABLE_ALLMULTI = 26,
265   MXGEFW_DISABLE_ALLMULTI = 27,
266 
267   /* returns MXGEFW_CMD_ERROR_MULTICAST
268      if there is no room in the cache
269      data0,MSH(data1) = multicast group address */
270   MXGEFW_JOIN_MULTICAST_GROUP = 28,
271   /* returns MXGEFW_CMD_ERROR_MULTICAST
272      if the address is not in the cache,
273      or is equal to FF-FF-FF-FF-FF-FF
274      data0,MSH(data1) = multicast group address */
275   MXGEFW_LEAVE_MULTICAST_GROUP = 29,
276   MXGEFW_LEAVE_ALL_MULTICAST_GROUPS = 30,
277 
278   MXGEFW_CMD_SET_STATS_DMA_V2 = 31,
279   /* data0, data1 = bus addr,
280    * data2 = sizeof(struct mcp_irq_data) from driver point of view, allows
281    * adding new stuff to mcp_irq_data without changing the ABI
282    *
283    * If multiple slices are used, data2 contains both the size of the
284    * structure (in the lower 16 bits) and the slice number
285    * (in the upper 16 bits).
286    */
287 
288   MXGEFW_CMD_UNALIGNED_TEST = 32,
289   /* same than DMA_TEST (same args) but abort with UNALIGNED on unaligned
290      chipset */
291 
292   MXGEFW_CMD_UNALIGNED_STATUS = 33,
293   /* return data = boolean, true if the chipset is known to be unaligned */
294 
295   MXGEFW_CMD_ALWAYS_USE_N_BIG_BUFFERS = 34,
296   /* data0 = number of big buffers to use.  It must be 0 or a power of 2.
297    * 0 indicates that the NIC consumes as many buffers as they are required
298    * for packet. This is the default behavior.
299    * A power of 2 number indicates that the NIC always uses the specified
300    * number of buffers for each big receive packet.
301    * It is up to the driver to ensure that this value is big enough for
302    * the NIC to be able to receive maximum-sized packets.
303    */
304 
305   MXGEFW_CMD_GET_MAX_RSS_QUEUES = 35,
306   MXGEFW_CMD_ENABLE_RSS_QUEUES = 36,
307   /* data0 = number of slices n (0, 1, ..., n-1) to enable
308    * data1 = interrupt mode | use of multiple transmit queues.
309    * 0=share one INTx/MSI.
310    * 1=use one MSI-X per queue.
311    * If all queues share one interrupt, the driver must have set
312    * RSS_SHARED_INTERRUPT_DMA before enabling queues.
313    * 2=enable both receive and send queues.
314    * Without this bit set, only one send queue (slice 0's send queue)
315    * is enabled.  The receive queues are always enabled.
316    */
317 #define MXGEFW_SLICE_INTR_MODE_SHARED          0x0
318 #define MXGEFW_SLICE_INTR_MODE_ONE_PER_SLICE   0x1
319 #define MXGEFW_SLICE_ENABLE_MULTIPLE_TX_QUEUES 0x2
320 
321   MXGEFW_CMD_GET_RSS_SHARED_INTERRUPT_MASK_OFFSET = 37,
322   MXGEFW_CMD_SET_RSS_SHARED_INTERRUPT_DMA = 38,
323   /* data0, data1 = bus address lsw, msw */
324   MXGEFW_CMD_GET_RSS_TABLE_OFFSET = 39,
325   /* get the offset of the indirection table */
326   MXGEFW_CMD_SET_RSS_TABLE_SIZE = 40,
327   /* set the size of the indirection table */
328   MXGEFW_CMD_GET_RSS_KEY_OFFSET = 41,
329   /* get the offset of the secret key */
330   MXGEFW_CMD_RSS_KEY_UPDATED = 42,
331   /* tell nic that the secret key's been updated */
332   MXGEFW_CMD_SET_RSS_ENABLE = 43,
333   /* data0 = enable/disable rss
334    * 0: disable rss.  nic does not distribute receive packets.
335    * 1: enable rss.  nic distributes receive packets among queues.
336    * data1 = hash type
337    * 1: IPV4            (required by RSS)
338    * 2: TCP_IPV4        (required by RSS)
339    * 3: IPV4 | TCP_IPV4 (required by RSS)
340    * 4: source port
341    * 5: source port + destination port
342    */
343 #define MXGEFW_RSS_HASH_TYPE_IPV4      0x1
344 #define MXGEFW_RSS_HASH_TYPE_TCP_IPV4  0x2
345 #define MXGEFW_RSS_HASH_TYPE_SRC_PORT  0x4
346 #define MXGEFW_RSS_HASH_TYPE_SRC_DST_PORT 0x5
347 #define MXGEFW_RSS_HASH_TYPE_MAX 0x5
348 
349   MXGEFW_CMD_GET_MAX_TSO6_HDR_SIZE = 44,
350   /* Return data = the max. size of the entire headers of a IPv6 TSO packet.
351    * If the header size of a IPv6 TSO packet is larger than the specified
352    * value, then the driver must not use TSO.
353    * This size restriction only applies to IPv6 TSO.
354    * For IPv4 TSO, the maximum size of the headers is fixed, and the NIC
355    * always has enough header buffer to store maximum-sized headers.
356    */
357 
358   MXGEFW_CMD_SET_TSO_MODE = 45,
359   /* data0 = TSO mode.
360    * 0: Linux/FreeBSD style (NIC default)
361    * 1: NDIS/NetBSD style
362    */
363 #define MXGEFW_TSO_MODE_LINUX  0
364 #define MXGEFW_TSO_MODE_NDIS   1
365 
366   MXGEFW_CMD_MDIO_READ = 46,
367   /* data0 = dev_addr (PMA/PMD or PCS ...), data1 = register/addr */
368   MXGEFW_CMD_MDIO_WRITE = 47,
369   /* data0 = dev_addr,  data1 = register/addr, data2 = value  */
370 
371   MXGEFW_CMD_I2C_READ = 48,
372   /* Starts to get a fresh copy of one byte or of the module i2c table, the
373    * obtained data is cached inside the xaui-xfi chip :
374    *   data0 :  0 => get one byte, 1=> get 256 bytes
375    *   data1 :  If data0 == 0: location to refresh
376    *               bit 7:0  register location
377    *               bit 8:15 is the i2c slave addr (0 is interpreted as 0xA1)
378    *               bit 23:16 is the i2c bus number (for multi-port NICs)
379    *            If data0 == 1: unused
380    * The operation might take ~1ms for a single byte or ~65ms when refreshing all 256 bytes
381    * During the i2c operation,  MXGEFW_CMD_I2C_READ or MXGEFW_CMD_I2C_BYTE attempts
382    *  will return MXGEFW_CMD_ERROR_BUSY
383    */
384   MXGEFW_CMD_I2C_BYTE = 49,
385   /* Return the last obtained copy of a given byte in the xfp i2c table
386    * (copy cached during the last relevant MXGEFW_CMD_I2C_READ)
387    *   data0 : index of the desired table entry
388    *  Return data = the byte stored at the requested index in the table
389    */
390 
391   MXGEFW_CMD_GET_VPUMP_OFFSET = 50,
392   /* Return data = NIC memory offset of mcp_vpump_public_global */
393   MXGEFW_CMD_RESET_VPUMP = 51,
394   /* Resets the VPUMP state */
395 
396   MXGEFW_CMD_SET_RSS_MCP_SLOT_TYPE = 52,
397   /* data0 = mcp_slot type to use.
398    * 0 = the default 4B mcp_slot
399    * 1 = 8B mcp_slot_8
400    */
401 #define MXGEFW_RSS_MCP_SLOT_TYPE_MIN        0
402 #define MXGEFW_RSS_MCP_SLOT_TYPE_WITH_HASH  1
403 
404   MXGEFW_CMD_SET_THROTTLE_FACTOR = 53,
405   /* set the throttle factor for ethp_z8e
406      data0 = throttle_factor
407      throttle_factor = 256 * pcie-raw-speed / tx_speed
408      tx_speed = 256 * pcie-raw-speed / throttle_factor
409 
410      For PCI-E x8: pcie-raw-speed == 16Gb/s
411      For PCI-E x4: pcie-raw-speed == 8Gb/s
412 
413      ex1: throttle_factor == 0x1a0 (416), tx_speed == 1.23GB/s == 9.846 Gb/s
414      ex2: throttle_factor == 0x200 (512), tx_speed == 1.0GB/s == 8 Gb/s
415 
416      with tx_boundary == 2048, max-throttle-factor == 8191 => min-speed == 500Mb/s
417      with tx_boundary == 4096, max-throttle-factor == 4095 => min-speed == 1Gb/s
418   */
419 
420   MXGEFW_CMD_VPUMP_UP = 54,
421   /* Allocates VPump Connection, Send Request and Zero copy buffer address tables */
422   MXGEFW_CMD_GET_VPUMP_CLK = 55,
423   /* Get the lanai clock */
424 
425   MXGEFW_CMD_GET_DCA_OFFSET = 56,
426   /* offset of dca control for WDMAs */
427 
428   /* VMWare NetQueue commands */
429   MXGEFW_CMD_NETQ_GET_FILTERS_PER_QUEUE = 57,
430   MXGEFW_CMD_NETQ_ADD_FILTER = 58,
431   /* data0 = filter_id << 16 | queue << 8 | type */
432   /* data1 = MS4 of MAC Addr */
433   /* data2 = LS2_MAC << 16 | VLAN_tag */
434   MXGEFW_CMD_NETQ_DEL_FILTER = 59,
435   /* data0 = filter_id */
436   MXGEFW_CMD_NETQ_QUERY1 = 60,
437   MXGEFW_CMD_NETQ_QUERY2 = 61,
438   MXGEFW_CMD_NETQ_QUERY3 = 62,
439   MXGEFW_CMD_NETQ_QUERY4 = 63,
440 
441   MXGEFW_CMD_RELAX_RXBUFFER_ALIGNMENT = 64,
442   /* When set, small receive buffers can cross page boundaries.
443    * Both small and big receive buffers may start at any address.
444    * This option has performance implications, so use with caution.
445    */
446 };
447 typedef enum myri10ge_mcp_cmd_type myri10ge_mcp_cmd_type_t;
448 
449 enum myri10ge_mcp_cmd_status {
450   MXGEFW_CMD_OK = 0,
451   MXGEFW_CMD_UNKNOWN = 1,
452   MXGEFW_CMD_ERROR_RANGE = 2,
453   MXGEFW_CMD_ERROR_BUSY = 3,
454   MXGEFW_CMD_ERROR_EMPTY = 4,
455   MXGEFW_CMD_ERROR_CLOSED = 5,
456   MXGEFW_CMD_ERROR_HASH_ERROR = 6,
457   MXGEFW_CMD_ERROR_BAD_PORT = 7,
458   MXGEFW_CMD_ERROR_RESOURCES = 8,
459   MXGEFW_CMD_ERROR_MULTICAST = 9,
460   MXGEFW_CMD_ERROR_UNALIGNED = 10,
461   MXGEFW_CMD_ERROR_NO_MDIO = 11,
462   MXGEFW_CMD_ERROR_I2C_FAILURE = 12,
463   MXGEFW_CMD_ERROR_I2C_ABSENT = 13,
464   MXGEFW_CMD_ERROR_BAD_PCIE_LINK = 14
465 };
466 typedef enum myri10ge_mcp_cmd_status myri10ge_mcp_cmd_status_t;
467 
468 #define MXGEFW_OLD_IRQ_DATA_LEN 40
469 
470 struct mcp_irq_data {
471   /* add new counters at the beginning */
472   uint32_t future_use[1];
473   uint32_t dropped_pause;
474   uint32_t dropped_unicast_filtered;
475   uint32_t dropped_bad_crc32;
476   uint32_t dropped_bad_phy;
477   uint32_t dropped_multicast_filtered;
478 /* 40 Bytes */
479   uint32_t send_done_count;
480 
481 #define MXGEFW_LINK_DOWN 0
482 #define MXGEFW_LINK_UP 1
483 #define MXGEFW_LINK_MYRINET 2
484 #define MXGEFW_LINK_UNKNOWN 3
485   uint32_t link_up;
486   uint32_t dropped_link_overflow;
487   uint32_t dropped_link_error_or_filtered;
488   uint32_t dropped_runt;
489   uint32_t dropped_overrun;
490   uint32_t dropped_no_small_buffer;
491   uint32_t dropped_no_big_buffer;
492   uint32_t rdma_tags_available;
493 
494   uint8_t tx_stopped;
495   uint8_t link_down;
496   uint8_t stats_updated;
497   uint8_t valid;
498 };
499 typedef struct mcp_irq_data mcp_irq_data_t;
500 
501 #ifdef MXGEFW_NDIS
502 /* Exclusively used by NDIS drivers */
503 struct mcp_rss_shared_interrupt {
504   uint8_t pad[2];
505   uint8_t queue;
506   uint8_t valid;
507 };
508 #endif
509 
510 /* definitions for NETQ filter type */
511 #define MXGEFW_NETQ_FILTERTYPE_NONE 0
512 #define MXGEFW_NETQ_FILTERTYPE_MACADDR 1
513 #define MXGEFW_NETQ_FILTERTYPE_VLAN 2
514 #define MXGEFW_NETQ_FILTERTYPE_VLANMACADDR 3
515 
516 #endif /* _myri10ge_mcp_h */
517