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40a3a915 RV |
1 | /****************************************************************************** |
2 | * This software may be used and distributed according to the terms of | |
3 | * the GNU General Public License (GPL), incorporated herein by reference. | |
4 | * Drivers based on or derived from this code fall under the GPL and must | |
5 | * retain the authorship, copyright and license notice. This file is not | |
6 | * a complete program and may only be used when the entire operating | |
7 | * system is licensed under the GPL. | |
8 | * See the file COPYING in this distribution for more information. | |
9 | * | |
926bd900 | 10 | * vxge-config.h: Driver for Exar Corp's X3100 Series 10GbE PCIe I/O |
40a3a915 | 11 | * Virtualized Server Adapter. |
926bd900 | 12 | * Copyright(c) 2002-2010 Exar Corp. |
40a3a915 RV |
13 | ******************************************************************************/ |
14 | #ifndef VXGE_CONFIG_H | |
15 | #define VXGE_CONFIG_H | |
16 | #include <linux/list.h> | |
5a0e3ad6 | 17 | #include <linux/slab.h> |
40a3a915 RV |
18 | |
19 | #ifndef VXGE_CACHE_LINE_SIZE | |
20 | #define VXGE_CACHE_LINE_SIZE 128 | |
21 | #endif | |
22 | ||
23 | #define vxge_os_vaprintf(level, mask, fmt, ...) { \ | |
24 | char buff[255]; \ | |
25 | snprintf(buff, 255, fmt, __VA_ARGS__); \ | |
26 | printk(buff); \ | |
27 | printk("\n"); \ | |
28 | } | |
29 | ||
30 | #ifndef VXGE_ALIGN | |
31 | #define VXGE_ALIGN(adrs, size) \ | |
32 | (((size) - (((u64)adrs) & ((size)-1))) & ((size)-1)) | |
33 | #endif | |
34 | ||
35 | #define VXGE_HW_MIN_MTU 68 | |
36 | #define VXGE_HW_MAX_MTU 9600 | |
37 | #define VXGE_HW_DEFAULT_MTU 1500 | |
38 | ||
39 | #ifdef VXGE_DEBUG_ASSERT | |
40 | ||
41 | /** | |
42 | * vxge_assert | |
43 | * @test: C-condition to check | |
44 | * @fmt: printf like format string | |
45 | * | |
46 | * This function implements traditional assert. By default assertions | |
47 | * are enabled. It can be disabled by undefining VXGE_DEBUG_ASSERT macro in | |
48 | * compilation | |
49 | * time. | |
50 | */ | |
51 | #define vxge_assert(test) { \ | |
52 | if (!(test)) \ | |
53 | vxge_os_bug("bad cond: "#test" at %s:%d\n", \ | |
54 | __FILE__, __LINE__); } | |
55 | #else | |
56 | #define vxge_assert(test) | |
57 | #endif /* end of VXGE_DEBUG_ASSERT */ | |
58 | ||
59 | /** | |
60 | * enum enum vxge_debug_level | |
61 | * @VXGE_NONE: debug disabled | |
62 | * @VXGE_ERR: all errors going to be logged out | |
63 | * @VXGE_TRACE: all errors plus all kind of verbose tracing print outs | |
64 | * going to be logged out. Very noisy. | |
65 | * | |
66 | * This enumeration going to be used to switch between different | |
67 | * debug levels during runtime if DEBUG macro defined during | |
68 | * compilation. If DEBUG macro not defined than code will be | |
69 | * compiled out. | |
70 | */ | |
71 | enum vxge_debug_level { | |
72 | VXGE_NONE = 0, | |
73 | VXGE_TRACE = 1, | |
74 | VXGE_ERR = 2 | |
75 | }; | |
76 | ||
77 | #define NULL_VPID 0xFFFFFFFF | |
78 | #ifdef CONFIG_VXGE_DEBUG_TRACE_ALL | |
79 | #define VXGE_DEBUG_MODULE_MASK 0xffffffff | |
80 | #define VXGE_DEBUG_TRACE_MASK 0xffffffff | |
81 | #define VXGE_DEBUG_ERR_MASK 0xffffffff | |
82 | #define VXGE_DEBUG_MASK 0x000001ff | |
83 | #else | |
84 | #define VXGE_DEBUG_MODULE_MASK 0x20000000 | |
85 | #define VXGE_DEBUG_TRACE_MASK 0x20000000 | |
86 | #define VXGE_DEBUG_ERR_MASK 0x20000000 | |
87 | #define VXGE_DEBUG_MASK 0x00000001 | |
88 | #endif | |
89 | ||
90 | /* | |
91 | * @VXGE_COMPONENT_LL: do debug for vxge link layer module | |
92 | * @VXGE_COMPONENT_ALL: activate debug for all modules with no exceptions | |
93 | * | |
94 | * This enumeration going to be used to distinguish modules | |
95 | * or libraries during compilation and runtime. Makefile must declare | |
96 | * VXGE_DEBUG_MODULE_MASK macro and set it to proper value. | |
97 | */ | |
98 | #define VXGE_COMPONENT_LL 0x20000000 | |
99 | #define VXGE_COMPONENT_ALL 0xffffffff | |
100 | ||
101 | #define VXGE_HW_BASE_INF 100 | |
102 | #define VXGE_HW_BASE_ERR 200 | |
103 | #define VXGE_HW_BASE_BADCFG 300 | |
104 | ||
105 | enum vxge_hw_status { | |
106 | VXGE_HW_OK = 0, | |
107 | VXGE_HW_FAIL = 1, | |
108 | VXGE_HW_PENDING = 2, | |
109 | VXGE_HW_COMPLETIONS_REMAIN = 3, | |
110 | ||
111 | VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS = VXGE_HW_BASE_INF + 1, | |
112 | VXGE_HW_INF_OUT_OF_DESCRIPTORS = VXGE_HW_BASE_INF + 2, | |
113 | ||
114 | VXGE_HW_ERR_INVALID_HANDLE = VXGE_HW_BASE_ERR + 1, | |
115 | VXGE_HW_ERR_OUT_OF_MEMORY = VXGE_HW_BASE_ERR + 2, | |
116 | VXGE_HW_ERR_VPATH_NOT_AVAILABLE = VXGE_HW_BASE_ERR + 3, | |
117 | VXGE_HW_ERR_VPATH_NOT_OPEN = VXGE_HW_BASE_ERR + 4, | |
118 | VXGE_HW_ERR_WRONG_IRQ = VXGE_HW_BASE_ERR + 5, | |
119 | VXGE_HW_ERR_SWAPPER_CTRL = VXGE_HW_BASE_ERR + 6, | |
120 | VXGE_HW_ERR_INVALID_MTU_SIZE = VXGE_HW_BASE_ERR + 7, | |
121 | VXGE_HW_ERR_INVALID_INDEX = VXGE_HW_BASE_ERR + 8, | |
122 | VXGE_HW_ERR_INVALID_TYPE = VXGE_HW_BASE_ERR + 9, | |
123 | VXGE_HW_ERR_INVALID_OFFSET = VXGE_HW_BASE_ERR + 10, | |
124 | VXGE_HW_ERR_INVALID_DEVICE = VXGE_HW_BASE_ERR + 11, | |
125 | VXGE_HW_ERR_VERSION_CONFLICT = VXGE_HW_BASE_ERR + 12, | |
126 | VXGE_HW_ERR_INVALID_PCI_INFO = VXGE_HW_BASE_ERR + 13, | |
127 | VXGE_HW_ERR_INVALID_TCODE = VXGE_HW_BASE_ERR + 14, | |
128 | VXGE_HW_ERR_INVALID_BLOCK_SIZE = VXGE_HW_BASE_ERR + 15, | |
129 | VXGE_HW_ERR_INVALID_STATE = VXGE_HW_BASE_ERR + 16, | |
130 | VXGE_HW_ERR_PRIVILAGED_OPEARATION = VXGE_HW_BASE_ERR + 17, | |
131 | VXGE_HW_ERR_INVALID_PORT = VXGE_HW_BASE_ERR + 18, | |
132 | VXGE_HW_ERR_FIFO = VXGE_HW_BASE_ERR + 19, | |
133 | VXGE_HW_ERR_VPATH = VXGE_HW_BASE_ERR + 20, | |
134 | VXGE_HW_ERR_CRITICAL = VXGE_HW_BASE_ERR + 21, | |
135 | VXGE_HW_ERR_SLOT_FREEZE = VXGE_HW_BASE_ERR + 22, | |
136 | ||
137 | VXGE_HW_BADCFG_RING_INDICATE_MAX_PKTS = VXGE_HW_BASE_BADCFG + 1, | |
138 | VXGE_HW_BADCFG_FIFO_BLOCKS = VXGE_HW_BASE_BADCFG + 2, | |
139 | VXGE_HW_BADCFG_VPATH_MTU = VXGE_HW_BASE_BADCFG + 3, | |
140 | VXGE_HW_BADCFG_VPATH_RPA_STRIP_VLAN_TAG = VXGE_HW_BASE_BADCFG + 4, | |
141 | VXGE_HW_BADCFG_VPATH_MIN_BANDWIDTH = VXGE_HW_BASE_BADCFG + 5, | |
142 | VXGE_HW_BADCFG_INTR_MODE = VXGE_HW_BASE_BADCFG + 6, | |
143 | VXGE_HW_BADCFG_RTS_MAC_EN = VXGE_HW_BASE_BADCFG + 7, | |
144 | ||
145 | VXGE_HW_EOF_TRACE_BUF = -1 | |
146 | }; | |
147 | ||
148 | /** | |
149 | * enum enum vxge_hw_device_link_state - Link state enumeration. | |
150 | * @VXGE_HW_LINK_NONE: Invalid link state. | |
151 | * @VXGE_HW_LINK_DOWN: Link is down. | |
152 | * @VXGE_HW_LINK_UP: Link is up. | |
153 | * | |
154 | */ | |
155 | enum vxge_hw_device_link_state { | |
156 | VXGE_HW_LINK_NONE, | |
157 | VXGE_HW_LINK_DOWN, | |
158 | VXGE_HW_LINK_UP | |
159 | }; | |
160 | ||
161 | /** | |
162 | * struct vxge_hw_device_date - Date Format | |
163 | * @day: Day | |
164 | * @month: Month | |
165 | * @year: Year | |
166 | * @date: Date in string format | |
167 | * | |
168 | * Structure for returning date | |
169 | */ | |
170 | ||
171 | #define VXGE_HW_FW_STRLEN 32 | |
172 | struct vxge_hw_device_date { | |
173 | u32 day; | |
174 | u32 month; | |
175 | u32 year; | |
176 | char date[VXGE_HW_FW_STRLEN]; | |
177 | }; | |
178 | ||
179 | struct vxge_hw_device_version { | |
180 | u32 major; | |
181 | u32 minor; | |
182 | u32 build; | |
183 | char version[VXGE_HW_FW_STRLEN]; | |
184 | }; | |
185 | ||
40a3a915 RV |
186 | /** |
187 | * struct vxge_hw_fifo_config - Configuration of fifo. | |
188 | * @enable: Is this fifo to be commissioned | |
189 | * @fifo_blocks: Numbers of TxDL (that is, lists of Tx descriptors) | |
190 | * blocks per queue. | |
191 | * @max_frags: Max number of Tx buffers per TxDL (that is, per single | |
192 | * transmit operation). | |
193 | * No more than 256 transmit buffers can be specified. | |
194 | * @memblock_size: Fifo descriptors are allocated in blocks of @mem_block_size | |
195 | * bytes. Setting @memblock_size to page size ensures | |
196 | * by-page allocation of descriptors. 128K bytes is the | |
197 | * maximum supported block size. | |
198 | * @alignment_size: per Tx fragment DMA-able memory used to align transmit data | |
199 | * (e.g., to align on a cache line). | |
200 | * @intr: Boolean. Use 1 to generate interrupt for each completed TxDL. | |
201 | * Use 0 otherwise. | |
202 | * @no_snoop_bits: If non-zero, specifies no-snoop PCI operation, | |
203 | * which generally improves latency of the host bridge operation | |
204 | * (see PCI specification). For valid values please refer | |
205 | * to struct vxge_hw_fifo_config{} in the driver sources. | |
206 | * Configuration of all Titan fifos. | |
207 | * Note: Valid (min, max) range for each attribute is specified in the body of | |
208 | * the struct vxge_hw_fifo_config{} structure. | |
209 | */ | |
210 | struct vxge_hw_fifo_config { | |
211 | u32 enable; | |
212 | #define VXGE_HW_FIFO_ENABLE 1 | |
213 | #define VXGE_HW_FIFO_DISABLE 0 | |
214 | ||
215 | u32 fifo_blocks; | |
216 | #define VXGE_HW_MIN_FIFO_BLOCKS 2 | |
217 | #define VXGE_HW_MAX_FIFO_BLOCKS 128 | |
218 | ||
219 | u32 max_frags; | |
220 | #define VXGE_HW_MIN_FIFO_FRAGS 1 | |
221 | #define VXGE_HW_MAX_FIFO_FRAGS 256 | |
222 | ||
223 | u32 memblock_size; | |
224 | #define VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE VXGE_HW_BLOCK_SIZE | |
225 | #define VXGE_HW_MAX_FIFO_MEMBLOCK_SIZE 131072 | |
226 | #define VXGE_HW_DEF_FIFO_MEMBLOCK_SIZE 8096 | |
227 | ||
228 | u32 alignment_size; | |
229 | #define VXGE_HW_MIN_FIFO_ALIGNMENT_SIZE 0 | |
230 | #define VXGE_HW_MAX_FIFO_ALIGNMENT_SIZE 65536 | |
231 | #define VXGE_HW_DEF_FIFO_ALIGNMENT_SIZE VXGE_CACHE_LINE_SIZE | |
232 | ||
233 | u32 intr; | |
234 | #define VXGE_HW_FIFO_QUEUE_INTR_ENABLE 1 | |
235 | #define VXGE_HW_FIFO_QUEUE_INTR_DISABLE 0 | |
236 | #define VXGE_HW_FIFO_QUEUE_INTR_DEFAULT 0 | |
237 | ||
238 | u32 no_snoop_bits; | |
239 | #define VXGE_HW_FIFO_NO_SNOOP_DISABLED 0 | |
240 | #define VXGE_HW_FIFO_NO_SNOOP_TXD 1 | |
241 | #define VXGE_HW_FIFO_NO_SNOOP_FRM 2 | |
242 | #define VXGE_HW_FIFO_NO_SNOOP_ALL 3 | |
243 | #define VXGE_HW_FIFO_NO_SNOOP_DEFAULT 0 | |
244 | ||
245 | }; | |
246 | /** | |
247 | * struct vxge_hw_ring_config - Ring configurations. | |
248 | * @enable: Is this ring to be commissioned | |
249 | * @ring_blocks: Numbers of RxD blocks in the ring | |
250 | * @buffer_mode: Receive buffer mode (1, 2, 3, or 5); for details please refer | |
251 | * to Titan User Guide. | |
252 | * @scatter_mode: Titan supports two receive scatter modes: A and B. | |
253 | * For details please refer to Titan User Guide. | |
254 | * @rx_timer_val: The number of 32ns periods that would be counted between two | |
255 | * timer interrupts. | |
256 | * @greedy_return: If Set it forces the device to return absolutely all RxD | |
257 | * that are consumed and still on board when a timer interrupt | |
258 | * triggers. If Clear, then if the device has already returned | |
259 | * RxD before current timer interrupt trigerred and after the | |
260 | * previous timer interrupt triggered, then the device is not | |
261 | * forced to returned the rest of the consumed RxD that it has | |
262 | * on board which account for a byte count less than the one | |
263 | * programmed into PRC_CFG6.RXD_CRXDT field | |
264 | * @rx_timer_ci: TBD | |
265 | * @backoff_interval_us: Time (in microseconds), after which Titan | |
266 | * tries to download RxDs posted by the host. | |
267 | * Note that the "backoff" does not happen if host posts receive | |
268 | * descriptors in the timely fashion. | |
269 | * Ring configuration. | |
270 | */ | |
271 | struct vxge_hw_ring_config { | |
272 | u32 enable; | |
273 | #define VXGE_HW_RING_ENABLE 1 | |
274 | #define VXGE_HW_RING_DISABLE 0 | |
275 | #define VXGE_HW_RING_DEFAULT 1 | |
276 | ||
277 | u32 ring_blocks; | |
278 | #define VXGE_HW_MIN_RING_BLOCKS 1 | |
279 | #define VXGE_HW_MAX_RING_BLOCKS 128 | |
280 | #define VXGE_HW_DEF_RING_BLOCKS 2 | |
281 | ||
282 | u32 buffer_mode; | |
283 | #define VXGE_HW_RING_RXD_BUFFER_MODE_1 1 | |
284 | #define VXGE_HW_RING_RXD_BUFFER_MODE_3 3 | |
285 | #define VXGE_HW_RING_RXD_BUFFER_MODE_5 5 | |
286 | #define VXGE_HW_RING_RXD_BUFFER_MODE_DEFAULT 1 | |
287 | ||
288 | u32 scatter_mode; | |
289 | #define VXGE_HW_RING_SCATTER_MODE_A 0 | |
290 | #define VXGE_HW_RING_SCATTER_MODE_B 1 | |
291 | #define VXGE_HW_RING_SCATTER_MODE_C 2 | |
292 | #define VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT 0xffffffff | |
293 | ||
294 | u64 rxds_limit; | |
295 | #define VXGE_HW_DEF_RING_RXDS_LIMIT 44 | |
296 | }; | |
297 | ||
298 | /** | |
299 | * struct vxge_hw_vp_config - Configuration of virtual path | |
300 | * @vp_id: Virtual Path Id | |
301 | * @min_bandwidth: Minimum Guaranteed bandwidth | |
302 | * @ring: See struct vxge_hw_ring_config{}. | |
303 | * @fifo: See struct vxge_hw_fifo_config{}. | |
304 | * @tti: Configuration of interrupt associated with Transmit. | |
305 | * see struct vxge_hw_tim_intr_config(); | |
306 | * @rti: Configuration of interrupt associated with Receive. | |
307 | * see struct vxge_hw_tim_intr_config(); | |
308 | * @mtu: mtu size used on this port. | |
309 | * @rpa_strip_vlan_tag: Strip VLAN Tag enable/disable. Instructs the device to | |
310 | * remove the VLAN tag from all received tagged frames that are not | |
311 | * replicated at the internal L2 switch. | |
312 | * 0 - Do not strip the VLAN tag. | |
313 | * 1 - Strip the VLAN tag. Regardless of this setting, VLAN tags are | |
314 | * always placed into the RxDMA descriptor. | |
315 | * | |
316 | * This structure is used by the driver to pass the configuration parameters to | |
317 | * configure Virtual Path. | |
318 | */ | |
319 | struct vxge_hw_vp_config { | |
320 | u32 vp_id; | |
321 | ||
322 | #define VXGE_HW_VPATH_PRIORITY_MIN 0 | |
323 | #define VXGE_HW_VPATH_PRIORITY_MAX 16 | |
324 | #define VXGE_HW_VPATH_PRIORITY_DEFAULT 0 | |
325 | ||
326 | u32 min_bandwidth; | |
327 | #define VXGE_HW_VPATH_BANDWIDTH_MIN 0 | |
328 | #define VXGE_HW_VPATH_BANDWIDTH_MAX 100 | |
329 | #define VXGE_HW_VPATH_BANDWIDTH_DEFAULT 0 | |
330 | ||
331 | struct vxge_hw_ring_config ring; | |
332 | struct vxge_hw_fifo_config fifo; | |
333 | struct vxge_hw_tim_intr_config tti; | |
334 | struct vxge_hw_tim_intr_config rti; | |
335 | ||
336 | u32 mtu; | |
337 | #define VXGE_HW_VPATH_MIN_INITIAL_MTU VXGE_HW_MIN_MTU | |
338 | #define VXGE_HW_VPATH_MAX_INITIAL_MTU VXGE_HW_MAX_MTU | |
339 | #define VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU 0xffffffff | |
340 | ||
341 | u32 rpa_strip_vlan_tag; | |
342 | #define VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE 1 | |
343 | #define VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_DISABLE 0 | |
344 | #define VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT 0xffffffff | |
345 | ||
346 | }; | |
347 | /** | |
348 | * struct vxge_hw_device_config - Device configuration. | |
349 | * @dma_blockpool_initial: Initial size of DMA Pool | |
350 | * @dma_blockpool_max: Maximum blocks in DMA pool | |
351 | * @intr_mode: Line, or MSI-X interrupt. | |
352 | * | |
353 | * @rth_en: Enable Receive Traffic Hashing(RTH) using IT(Indirection Table). | |
354 | * @rth_it_type: RTH IT table programming type | |
355 | * @rts_mac_en: Enable Receive Traffic Steering using MAC destination address | |
356 | * @vp_config: Configuration for virtual paths | |
357 | * @device_poll_millis: Specify the interval (in mulliseconds) | |
358 | * to wait for register reads | |
359 | * | |
360 | * Titan configuration. | |
361 | * Contains per-device configuration parameters, including: | |
362 | * - stats sampling interval, etc. | |
363 | * | |
364 | * In addition, struct vxge_hw_device_config{} includes "subordinate" | |
365 | * configurations, including: | |
366 | * - fifos and rings; | |
367 | * - MAC (done at firmware level). | |
368 | * | |
369 | * See Titan User Guide for more details. | |
370 | * Note: Valid (min, max) range for each attribute is specified in the body of | |
371 | * the struct vxge_hw_device_config{} structure. Please refer to the | |
372 | * corresponding include file. | |
373 | * See also: struct vxge_hw_tim_intr_config{}. | |
374 | */ | |
375 | struct vxge_hw_device_config { | |
376 | u32 dma_blockpool_initial; | |
377 | u32 dma_blockpool_max; | |
378 | #define VXGE_HW_MIN_DMA_BLOCK_POOL_SIZE 0 | |
379 | #define VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE 0 | |
380 | #define VXGE_HW_INCR_DMA_BLOCK_POOL_SIZE 4 | |
381 | #define VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE 4096 | |
382 | ||
383 | #define VXGE_HW_MAX_PAYLOAD_SIZE_512 2 | |
384 | ||
385 | u32 intr_mode; | |
386 | #define VXGE_HW_INTR_MODE_IRQLINE 0 | |
387 | #define VXGE_HW_INTR_MODE_MSIX 1 | |
388 | #define VXGE_HW_INTR_MODE_MSIX_ONE_SHOT 2 | |
389 | ||
390 | #define VXGE_HW_INTR_MODE_DEF 0 | |
391 | ||
392 | u32 rth_en; | |
393 | #define VXGE_HW_RTH_DISABLE 0 | |
394 | #define VXGE_HW_RTH_ENABLE 1 | |
395 | #define VXGE_HW_RTH_DEFAULT 0 | |
396 | ||
397 | u32 rth_it_type; | |
398 | #define VXGE_HW_RTH_IT_TYPE_SOLO_IT 0 | |
399 | #define VXGE_HW_RTH_IT_TYPE_MULTI_IT 1 | |
400 | #define VXGE_HW_RTH_IT_TYPE_DEFAULT 0 | |
401 | ||
402 | u32 rts_mac_en; | |
403 | #define VXGE_HW_RTS_MAC_DISABLE 0 | |
404 | #define VXGE_HW_RTS_MAC_ENABLE 1 | |
405 | #define VXGE_HW_RTS_MAC_DEFAULT 0 | |
406 | ||
407 | struct vxge_hw_vp_config vp_config[VXGE_HW_MAX_VIRTUAL_PATHS]; | |
408 | ||
409 | u32 device_poll_millis; | |
410 | #define VXGE_HW_MIN_DEVICE_POLL_MILLIS 1 | |
411 | #define VXGE_HW_MAX_DEVICE_POLL_MILLIS 100000 | |
412 | #define VXGE_HW_DEF_DEVICE_POLL_MILLIS 1000 | |
413 | ||
414 | }; | |
415 | ||
416 | /** | |
417 | * function vxge_uld_link_up_f - Link-Up callback provided by driver. | |
418 | * @devh: HW device handle. | |
419 | * Link-up notification callback provided by the driver. | |
420 | * This is one of the per-driver callbacks, see struct vxge_hw_uld_cbs{}. | |
421 | * | |
422 | * See also: struct vxge_hw_uld_cbs{}, vxge_uld_link_down_f{}, | |
423 | * vxge_hw_driver_initialize(). | |
424 | */ | |
425 | ||
426 | /** | |
427 | * function vxge_uld_link_down_f - Link-Down callback provided by | |
428 | * driver. | |
429 | * @devh: HW device handle. | |
430 | * | |
431 | * Link-Down notification callback provided by the driver. | |
432 | * This is one of the per-driver callbacks, see struct vxge_hw_uld_cbs{}. | |
433 | * | |
434 | * See also: struct vxge_hw_uld_cbs{}, vxge_uld_link_up_f{}, | |
435 | * vxge_hw_driver_initialize(). | |
436 | */ | |
437 | ||
438 | /** | |
439 | * function vxge_uld_crit_err_f - Critical Error notification callback. | |
440 | * @devh: HW device handle. | |
441 | * (typically - at HW device iinitialization time). | |
442 | * @type: Enumerated hw error, e.g.: double ECC. | |
443 | * @serr_data: Titan status. | |
444 | * @ext_data: Extended data. The contents depends on the @type. | |
445 | * | |
446 | * Link-Down notification callback provided by the driver. | |
447 | * This is one of the per-driver callbacks, see struct vxge_hw_uld_cbs{}. | |
448 | * | |
449 | * See also: struct vxge_hw_uld_cbs{}, enum vxge_hw_event{}, | |
450 | * vxge_hw_driver_initialize(). | |
451 | */ | |
452 | ||
453 | /** | |
454 | * struct vxge_hw_uld_cbs - driver "slow-path" callbacks. | |
455 | * @link_up: See vxge_uld_link_up_f{}. | |
456 | * @link_down: See vxge_uld_link_down_f{}. | |
457 | * @crit_err: See vxge_uld_crit_err_f{}. | |
458 | * | |
459 | * Driver slow-path (per-driver) callbacks. | |
460 | * Implemented by driver and provided to HW via | |
461 | * vxge_hw_driver_initialize(). | |
462 | * Note that these callbacks are not mandatory: HW will not invoke | |
463 | * a callback if NULL is specified. | |
464 | * | |
465 | * See also: vxge_hw_driver_initialize(). | |
466 | */ | |
467 | struct vxge_hw_uld_cbs { | |
468 | ||
469 | void (*link_up)(struct __vxge_hw_device *devh); | |
470 | void (*link_down)(struct __vxge_hw_device *devh); | |
471 | void (*crit_err)(struct __vxge_hw_device *devh, | |
472 | enum vxge_hw_event type, u64 ext_data); | |
473 | }; | |
474 | ||
475 | /* | |
476 | * struct __vxge_hw_blockpool_entry - Block private data structure | |
477 | * @item: List header used to link. | |
478 | * @length: Length of the block | |
479 | * @memblock: Virtual address block | |
480 | * @dma_addr: DMA Address of the block. | |
481 | * @dma_handle: DMA handle of the block. | |
482 | * @acc_handle: DMA acc handle | |
483 | * | |
484 | * Block is allocated with a header to put the blocks into list. | |
485 | * | |
486 | */ | |
487 | struct __vxge_hw_blockpool_entry { | |
488 | struct list_head item; | |
489 | u32 length; | |
490 | void *memblock; | |
491 | dma_addr_t dma_addr; | |
492 | struct pci_dev *dma_handle; | |
493 | struct pci_dev *acc_handle; | |
494 | }; | |
495 | ||
496 | /* | |
497 | * struct __vxge_hw_blockpool - Block Pool | |
498 | * @hldev: HW device | |
499 | * @block_size: size of each block. | |
500 | * @Pool_size: Number of blocks in the pool | |
501 | * @pool_max: Maximum number of blocks above which to free additional blocks | |
502 | * @req_out: Number of block requests with OS out standing | |
503 | * @free_block_list: List of free blocks | |
504 | * | |
505 | * Block pool contains the DMA blocks preallocated. | |
506 | * | |
507 | */ | |
508 | struct __vxge_hw_blockpool { | |
509 | struct __vxge_hw_device *hldev; | |
510 | u32 block_size; | |
511 | u32 pool_size; | |
512 | u32 pool_max; | |
513 | u32 req_out; | |
514 | struct list_head free_block_list; | |
515 | struct list_head free_entry_list; | |
516 | }; | |
517 | ||
518 | /* | |
519 | * enum enum __vxge_hw_channel_type - Enumerated channel types. | |
520 | * @VXGE_HW_CHANNEL_TYPE_UNKNOWN: Unknown channel. | |
521 | * @VXGE_HW_CHANNEL_TYPE_FIFO: fifo. | |
522 | * @VXGE_HW_CHANNEL_TYPE_RING: ring. | |
523 | * @VXGE_HW_CHANNEL_TYPE_MAX: Maximum number of HW-supported | |
524 | * (and recognized) channel types. Currently: 2. | |
525 | * | |
526 | * Enumerated channel types. Currently there are only two link-layer | |
527 | * channels - Titan fifo and Titan ring. In the future the list will grow. | |
528 | */ | |
529 | enum __vxge_hw_channel_type { | |
530 | VXGE_HW_CHANNEL_TYPE_UNKNOWN = 0, | |
531 | VXGE_HW_CHANNEL_TYPE_FIFO = 1, | |
532 | VXGE_HW_CHANNEL_TYPE_RING = 2, | |
533 | VXGE_HW_CHANNEL_TYPE_MAX = 3 | |
534 | }; | |
535 | ||
536 | /* | |
537 | * struct __vxge_hw_channel | |
538 | * @item: List item; used to maintain a list of open channels. | |
539 | * @type: Channel type. See enum vxge_hw_channel_type{}. | |
540 | * @devh: Device handle. HW device object that contains _this_ channel. | |
541 | * @vph: Virtual path handle. Virtual Path Object that contains _this_ channel. | |
542 | * @length: Channel length. Currently allocated number of descriptors. | |
543 | * The channel length "grows" when more descriptors get allocated. | |
544 | * See _hw_mempool_grow. | |
545 | * @reserve_arr: Reserve array. Contains descriptors that can be reserved | |
546 | * by driver for the subsequent send or receive operation. | |
547 | * See vxge_hw_fifo_txdl_reserve(), | |
548 | * vxge_hw_ring_rxd_reserve(). | |
549 | * @reserve_ptr: Current pointer in the resrve array | |
550 | * @reserve_top: Reserve top gives the maximum number of dtrs available in | |
551 | * reserve array. | |
552 | * @work_arr: Work array. Contains descriptors posted to the channel. | |
553 | * Note that at any point in time @work_arr contains 3 types of | |
554 | * descriptors: | |
555 | * 1) posted but not yet consumed by Titan device; | |
556 | * 2) consumed but not yet completed; | |
557 | * 3) completed but not yet freed | |
558 | * (via vxge_hw_fifo_txdl_free() or vxge_hw_ring_rxd_free()) | |
559 | * @post_index: Post index. At any point in time points on the | |
560 | * position in the channel, which'll contain next to-be-posted | |
561 | * descriptor. | |
562 | * @compl_index: Completion index. At any point in time points on the | |
563 | * position in the channel, which will contain next | |
564 | * to-be-completed descriptor. | |
565 | * @free_arr: Free array. Contains completed descriptors that were freed | |
566 | * (i.e., handed over back to HW) by driver. | |
567 | * See vxge_hw_fifo_txdl_free(), vxge_hw_ring_rxd_free(). | |
568 | * @free_ptr: current pointer in free array | |
569 | * @per_dtr_space: Per-descriptor space (in bytes) that channel user can utilize | |
570 | * to store per-operation control information. | |
571 | * @stats: Pointer to common statistics | |
572 | * @userdata: Per-channel opaque (void*) user-defined context, which may be | |
573 | * driver object, ULP connection, etc. | |
574 | * Once channel is open, @userdata is passed back to user via | |
575 | * vxge_hw_channel_callback_f. | |
576 | * | |
577 | * HW channel object. | |
578 | * | |
579 | * See also: enum vxge_hw_channel_type{}, enum vxge_hw_channel_flag | |
580 | */ | |
581 | struct __vxge_hw_channel { | |
582 | struct list_head item; | |
583 | enum __vxge_hw_channel_type type; | |
584 | struct __vxge_hw_device *devh; | |
585 | struct __vxge_hw_vpath_handle *vph; | |
586 | u32 length; | |
587 | u32 vp_id; | |
588 | void **reserve_arr; | |
589 | u32 reserve_ptr; | |
590 | u32 reserve_top; | |
591 | void **work_arr; | |
592 | u32 post_index ____cacheline_aligned; | |
593 | u32 compl_index ____cacheline_aligned; | |
594 | void **free_arr; | |
595 | u32 free_ptr; | |
596 | void **orig_arr; | |
597 | u32 per_dtr_space; | |
598 | void *userdata; | |
599 | struct vxge_hw_common_reg __iomem *common_reg; | |
600 | u32 first_vp_id; | |
601 | struct vxge_hw_vpath_stats_sw_common_info *stats; | |
602 | ||
603 | } ____cacheline_aligned; | |
604 | ||
605 | /* | |
606 | * struct __vxge_hw_virtualpath - Virtual Path | |
607 | * | |
608 | * @vp_id: Virtual path id | |
609 | * @vp_open: This flag specifies if vxge_hw_vp_open is called from LL Driver | |
610 | * @hldev: Hal device | |
611 | * @vp_config: Virtual Path Config | |
612 | * @vp_reg: VPATH Register map address in BAR0 | |
613 | * @vpmgmt_reg: VPATH_MGMT register map address | |
614 | * @max_mtu: Max mtu that can be supported | |
615 | * @vsport_number: vsport attached to this vpath | |
616 | * @max_kdfc_db: Maximum kernel mode doorbells | |
617 | * @max_nofl_db: Maximum non offload doorbells | |
618 | * @tx_intr_num: Interrupt Number associated with the TX | |
619 | ||
620 | * @ringh: Ring Queue | |
621 | * @fifoh: FIFO Queue | |
622 | * @vpath_handles: Virtual Path handles list | |
623 | * @stats_block: Memory for DMAing stats | |
624 | * @stats: Vpath statistics | |
625 | * | |
626 | * Virtual path structure to encapsulate the data related to a virtual path. | |
627 | * Virtual paths are allocated by the HW upon getting configuration from the | |
628 | * driver and inserted into the list of virtual paths. | |
629 | */ | |
630 | struct __vxge_hw_virtualpath { | |
631 | u32 vp_id; | |
632 | ||
633 | u32 vp_open; | |
634 | #define VXGE_HW_VP_NOT_OPEN 0 | |
635 | #define VXGE_HW_VP_OPEN 1 | |
636 | ||
637 | struct __vxge_hw_device *hldev; | |
638 | struct vxge_hw_vp_config *vp_config; | |
639 | struct vxge_hw_vpath_reg __iomem *vp_reg; | |
640 | struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg; | |
641 | struct __vxge_hw_non_offload_db_wrapper __iomem *nofl_db; | |
642 | ||
643 | u32 max_mtu; | |
644 | u32 vsport_number; | |
645 | u32 max_kdfc_db; | |
646 | u32 max_nofl_db; | |
647 | ||
648 | struct __vxge_hw_ring *____cacheline_aligned ringh; | |
649 | struct __vxge_hw_fifo *____cacheline_aligned fifoh; | |
650 | struct list_head vpath_handles; | |
651 | struct __vxge_hw_blockpool_entry *stats_block; | |
652 | struct vxge_hw_vpath_stats_hw_info *hw_stats; | |
653 | struct vxge_hw_vpath_stats_hw_info *hw_stats_sav; | |
654 | struct vxge_hw_vpath_stats_sw_info *sw_stats; | |
655 | }; | |
656 | ||
657 | /* | |
658 | * struct __vxge_hw_vpath_handle - List item to store callback information | |
659 | * @item: List head to keep the item in linked list | |
660 | * @vpath: Virtual path to which this item belongs | |
661 | * | |
662 | * This structure is used to store the callback information. | |
663 | */ | |
664 | struct __vxge_hw_vpath_handle{ | |
665 | struct list_head item; | |
666 | struct __vxge_hw_virtualpath *vpath; | |
667 | }; | |
668 | ||
669 | /* | |
670 | * struct __vxge_hw_device | |
671 | * | |
672 | * HW device object. | |
673 | */ | |
674 | /** | |
675 | * struct __vxge_hw_device - Hal device object | |
676 | * @magic: Magic Number | |
677 | * @device_id: PCI Device Id of the adapter | |
678 | * @major_revision: PCI Device major revision | |
679 | * @minor_revision: PCI Device minor revision | |
680 | * @bar0: BAR0 virtual address. | |
40a3a915 RV |
681 | * @pdev: Physical device handle |
682 | * @config: Confguration passed by the LL driver at initialization | |
683 | * @link_state: Link state | |
684 | * | |
685 | * HW device object. Represents Titan adapter | |
686 | */ | |
687 | struct __vxge_hw_device { | |
688 | u32 magic; | |
689 | #define VXGE_HW_DEVICE_MAGIC 0x12345678 | |
690 | #define VXGE_HW_DEVICE_DEAD 0xDEADDEAD | |
691 | u16 device_id; | |
692 | u8 major_revision; | |
693 | u8 minor_revision; | |
694 | void __iomem *bar0; | |
40a3a915 RV |
695 | struct pci_dev *pdev; |
696 | struct net_device *ndev; | |
697 | struct vxge_hw_device_config config; | |
698 | enum vxge_hw_device_link_state link_state; | |
699 | ||
700 | struct vxge_hw_uld_cbs uld_callbacks; | |
701 | ||
702 | u32 host_type; | |
703 | u32 func_id; | |
704 | u32 access_rights; | |
705 | #define VXGE_HW_DEVICE_ACCESS_RIGHT_VPATH 0x1 | |
706 | #define VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM 0x2 | |
707 | #define VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM 0x4 | |
708 | struct vxge_hw_legacy_reg __iomem *legacy_reg; | |
709 | struct vxge_hw_toc_reg __iomem *toc_reg; | |
710 | struct vxge_hw_common_reg __iomem *common_reg; | |
711 | struct vxge_hw_mrpcim_reg __iomem *mrpcim_reg; | |
712 | struct vxge_hw_srpcim_reg __iomem *srpcim_reg \ | |
713 | [VXGE_HW_TITAN_SRPCIM_REG_SPACES]; | |
714 | struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg \ | |
715 | [VXGE_HW_TITAN_VPMGMT_REG_SPACES]; | |
716 | struct vxge_hw_vpath_reg __iomem *vpath_reg \ | |
717 | [VXGE_HW_TITAN_VPATH_REG_SPACES]; | |
718 | u8 __iomem *kdfc; | |
719 | u8 __iomem *usdc; | |
720 | struct __vxge_hw_virtualpath virtual_paths \ | |
721 | [VXGE_HW_MAX_VIRTUAL_PATHS]; | |
722 | u64 vpath_assignments; | |
723 | u64 vpaths_deployed; | |
724 | u32 first_vp_id; | |
725 | u64 tim_int_mask0[4]; | |
726 | u32 tim_int_mask1[4]; | |
727 | ||
728 | struct __vxge_hw_blockpool block_pool; | |
729 | struct vxge_hw_device_stats stats; | |
730 | u32 debug_module_mask; | |
731 | u32 debug_level; | |
732 | u32 level_err; | |
733 | u32 level_trace; | |
734 | }; | |
735 | ||
736 | #define VXGE_HW_INFO_LEN 64 | |
737 | /** | |
738 | * struct vxge_hw_device_hw_info - Device information | |
739 | * @host_type: Host Type | |
740 | * @func_id: Function Id | |
741 | * @vpath_mask: vpath bit mask | |
742 | * @fw_version: Firmware version | |
743 | * @fw_date: Firmware Date | |
744 | * @flash_version: Firmware version | |
745 | * @flash_date: Firmware Date | |
746 | * @mac_addrs: Mac addresses for each vpath | |
747 | * @mac_addr_masks: Mac address masks for each vpath | |
748 | * | |
749 | * Returns the vpath mask that has the bits set for each vpath allocated | |
750 | * for the driver and the first mac address for each vpath | |
751 | */ | |
752 | struct vxge_hw_device_hw_info { | |
753 | u32 host_type; | |
754 | #define VXGE_HW_NO_MR_NO_SR_NORMAL_FUNCTION 0 | |
755 | #define VXGE_HW_MR_NO_SR_VH0_BASE_FUNCTION 1 | |
756 | #define VXGE_HW_NO_MR_SR_VH0_FUNCTION0 2 | |
757 | #define VXGE_HW_NO_MR_SR_VH0_VIRTUAL_FUNCTION 3 | |
758 | #define VXGE_HW_MR_SR_VH0_INVALID_CONFIG 4 | |
759 | #define VXGE_HW_SR_VH_FUNCTION0 5 | |
760 | #define VXGE_HW_SR_VH_VIRTUAL_FUNCTION 6 | |
761 | #define VXGE_HW_VH_NORMAL_FUNCTION 7 | |
762 | u64 function_mode; | |
cb27ec60 SH |
763 | #define VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION 0 |
764 | #define VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION 1 | |
40a3a915 RV |
765 | #define VXGE_HW_FUNCTION_MODE_SRIOV 2 |
766 | #define VXGE_HW_FUNCTION_MODE_MRIOV 3 | |
cb27ec60 SH |
767 | #define VXGE_HW_FUNCTION_MODE_MRIOV_8 4 |
768 | #define VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_17 5 | |
769 | #define VXGE_HW_FUNCTION_MODE_SRIOV_8 6 | |
770 | #define VXGE_HW_FUNCTION_MODE_SRIOV_4 7 | |
771 | #define VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_2 8 | |
772 | #define VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_4 9 | |
773 | #define VXGE_HW_FUNCTION_MODE_MRIOV_4 10 | |
774 | ||
40a3a915 RV |
775 | u32 func_id; |
776 | u64 vpath_mask; | |
777 | struct vxge_hw_device_version fw_version; | |
778 | struct vxge_hw_device_date fw_date; | |
779 | struct vxge_hw_device_version flash_version; | |
780 | struct vxge_hw_device_date flash_date; | |
781 | u8 serial_number[VXGE_HW_INFO_LEN]; | |
782 | u8 part_number[VXGE_HW_INFO_LEN]; | |
783 | u8 product_desc[VXGE_HW_INFO_LEN]; | |
784 | u8 (mac_addrs)[VXGE_HW_MAX_VIRTUAL_PATHS][ETH_ALEN]; | |
785 | u8 (mac_addr_masks)[VXGE_HW_MAX_VIRTUAL_PATHS][ETH_ALEN]; | |
786 | }; | |
787 | ||
788 | /** | |
789 | * struct vxge_hw_device_attr - Device memory spaces. | |
790 | * @bar0: BAR0 virtual address. | |
40a3a915 RV |
791 | * @pdev: PCI device object. |
792 | * | |
7975d1ee | 793 | * Device memory spaces. Includes configuration, BAR0 etc. per device |
40a3a915 RV |
794 | * mapped memories. Also, includes a pointer to OS-specific PCI device object. |
795 | */ | |
796 | struct vxge_hw_device_attr { | |
797 | void __iomem *bar0; | |
40a3a915 RV |
798 | struct pci_dev *pdev; |
799 | struct vxge_hw_uld_cbs uld_callbacks; | |
800 | }; | |
801 | ||
802 | #define VXGE_HW_DEVICE_LINK_STATE_SET(hldev, ls) (hldev->link_state = ls) | |
803 | ||
804 | #define VXGE_HW_DEVICE_TIM_INT_MASK_SET(m0, m1, i) { \ | |
805 | if (i < 16) { \ | |
806 | m0[0] |= vxge_vBIT(0x8, (i*4), 4); \ | |
807 | m0[1] |= vxge_vBIT(0x4, (i*4), 4); \ | |
808 | } \ | |
809 | else { \ | |
810 | m1[0] = 0x80000000; \ | |
811 | m1[1] = 0x40000000; \ | |
812 | } \ | |
813 | } | |
814 | ||
815 | #define VXGE_HW_DEVICE_TIM_INT_MASK_RESET(m0, m1, i) { \ | |
816 | if (i < 16) { \ | |
817 | m0[0] &= ~vxge_vBIT(0x8, (i*4), 4); \ | |
818 | m0[1] &= ~vxge_vBIT(0x4, (i*4), 4); \ | |
819 | } \ | |
820 | else { \ | |
821 | m1[0] = 0; \ | |
822 | m1[1] = 0; \ | |
823 | } \ | |
824 | } | |
825 | ||
826 | #define VXGE_HW_DEVICE_STATS_PIO_READ(loc, offset) { \ | |
827 | status = vxge_hw_mrpcim_stats_access(hldev, \ | |
828 | VXGE_HW_STATS_OP_READ, \ | |
829 | loc, \ | |
830 | offset, \ | |
831 | &val64); \ | |
832 | \ | |
833 | if (status != VXGE_HW_OK) \ | |
834 | return status; \ | |
835 | } | |
836 | ||
837 | #define VXGE_HW_VPATH_STATS_PIO_READ(offset) { \ | |
838 | status = __vxge_hw_vpath_stats_access(vpath, \ | |
839 | VXGE_HW_STATS_OP_READ, \ | |
840 | offset, \ | |
841 | &val64); \ | |
842 | if (status != VXGE_HW_OK) \ | |
843 | return status; \ | |
844 | } | |
845 | ||
846 | /* | |
847 | * struct __vxge_hw_ring - Ring channel. | |
848 | * @channel: Channel "base" of this ring, the common part of all HW | |
849 | * channels. | |
850 | * @mempool: Memory pool, the pool from which descriptors get allocated. | |
851 | * (See vxge_hw_mm.h). | |
852 | * @config: Ring configuration, part of device configuration | |
853 | * (see struct vxge_hw_device_config{}). | |
854 | * @ring_length: Length of the ring | |
855 | * @buffer_mode: 1, 3, or 5. The value specifies a receive buffer mode, | |
856 | * as per Titan User Guide. | |
857 | * @rxd_size: RxD sizes for 1-, 3- or 5- buffer modes. As per Titan spec, | |
858 | * 1-buffer mode descriptor is 32 byte long, etc. | |
859 | * @rxd_priv_size: Per RxD size reserved (by HW) for driver to keep | |
860 | * per-descriptor data (e.g., DMA handle for Solaris) | |
861 | * @per_rxd_space: Per rxd space requested by driver | |
862 | * @rxds_per_block: Number of descriptors per hardware-defined RxD | |
863 | * block. Depends on the (1-, 3-, 5-) buffer mode. | |
864 | * @rxdblock_priv_size: Reserved at the end of each RxD block. HW internal | |
865 | * usage. Not to confuse with @rxd_priv_size. | |
866 | * @cmpl_cnt: Completion counter. Is reset to zero upon entering the ISR. | |
867 | * @callback: Channel completion callback. HW invokes the callback when there | |
868 | * are new completions on that channel. In many implementations | |
869 | * the @callback executes in the hw interrupt context. | |
870 | * @rxd_init: Channel's descriptor-initialize callback. | |
871 | * See vxge_hw_ring_rxd_init_f{}. | |
872 | * If not NULL, HW invokes the callback when opening | |
873 | * the ring. | |
874 | * @rxd_term: Channel's descriptor-terminate callback. If not NULL, | |
875 | * HW invokes the callback when closing the corresponding channel. | |
876 | * See also vxge_hw_channel_rxd_term_f{}. | |
877 | * @stats: Statistics for ring | |
878 | * Ring channel. | |
879 | * | |
880 | * Note: The structure is cache line aligned to better utilize | |
881 | * CPU cache performance. | |
882 | */ | |
883 | struct __vxge_hw_ring { | |
884 | struct __vxge_hw_channel channel; | |
885 | struct vxge_hw_mempool *mempool; | |
886 | struct vxge_hw_vpath_reg __iomem *vp_reg; | |
887 | struct vxge_hw_common_reg __iomem *common_reg; | |
888 | u32 ring_length; | |
889 | u32 buffer_mode; | |
890 | u32 rxd_size; | |
891 | u32 rxd_priv_size; | |
892 | u32 per_rxd_space; | |
893 | u32 rxds_per_block; | |
894 | u32 rxdblock_priv_size; | |
895 | u32 cmpl_cnt; | |
896 | u32 vp_id; | |
897 | u32 doorbell_cnt; | |
898 | u32 total_db_cnt; | |
899 | u64 rxds_limit; | |
900 | ||
901 | enum vxge_hw_status (*callback)( | |
902 | struct __vxge_hw_ring *ringh, | |
903 | void *rxdh, | |
904 | u8 t_code, | |
905 | void *userdata); | |
906 | ||
907 | enum vxge_hw_status (*rxd_init)( | |
908 | void *rxdh, | |
909 | void *userdata); | |
910 | ||
911 | void (*rxd_term)( | |
912 | void *rxdh, | |
913 | enum vxge_hw_rxd_state state, | |
914 | void *userdata); | |
915 | ||
916 | struct vxge_hw_vpath_stats_sw_ring_info *stats ____cacheline_aligned; | |
917 | struct vxge_hw_ring_config *config; | |
918 | } ____cacheline_aligned; | |
919 | ||
920 | /** | |
921 | * enum enum vxge_hw_txdl_state - Descriptor (TXDL) state. | |
922 | * @VXGE_HW_TXDL_STATE_NONE: Invalid state. | |
923 | * @VXGE_HW_TXDL_STATE_AVAIL: Descriptor is available for reservation. | |
924 | * @VXGE_HW_TXDL_STATE_POSTED: Descriptor is posted for processing by the | |
925 | * device. | |
926 | * @VXGE_HW_TXDL_STATE_FREED: Descriptor is free and can be reused for | |
927 | * filling-in and posting later. | |
928 | * | |
929 | * Titan/HW descriptor states. | |
930 | * | |
931 | */ | |
932 | enum vxge_hw_txdl_state { | |
933 | VXGE_HW_TXDL_STATE_NONE = 0, | |
934 | VXGE_HW_TXDL_STATE_AVAIL = 1, | |
935 | VXGE_HW_TXDL_STATE_POSTED = 2, | |
936 | VXGE_HW_TXDL_STATE_FREED = 3 | |
937 | }; | |
938 | /* | |
939 | * struct __vxge_hw_fifo - Fifo. | |
940 | * @channel: Channel "base" of this fifo, the common part of all HW | |
941 | * channels. | |
942 | * @mempool: Memory pool, from which descriptors get allocated. | |
943 | * @config: Fifo configuration, part of device configuration | |
944 | * (see struct vxge_hw_device_config{}). | |
945 | * @interrupt_type: Interrupt type to be used | |
946 | * @no_snoop_bits: See struct vxge_hw_fifo_config{}. | |
947 | * @txdl_per_memblock: Number of TxDLs (TxD lists) per memblock. | |
948 | * on TxDL please refer to Titan UG. | |
949 | * @txdl_size: Configured TxDL size (i.e., number of TxDs in a list), plus | |
950 | * per-TxDL HW private space (struct __vxge_hw_fifo_txdl_priv). | |
951 | * @priv_size: Per-Tx descriptor space reserved for driver | |
952 | * usage. | |
953 | * @per_txdl_space: Per txdl private space for the driver | |
954 | * @callback: Fifo completion callback. HW invokes the callback when there | |
955 | * are new completions on that fifo. In many implementations | |
956 | * the @callback executes in the hw interrupt context. | |
957 | * @txdl_term: Fifo's descriptor-terminate callback. If not NULL, | |
958 | * HW invokes the callback when closing the corresponding fifo. | |
959 | * See also vxge_hw_fifo_txdl_term_f{}. | |
960 | * @stats: Statistics of this fifo | |
961 | * | |
962 | * Fifo channel. | |
963 | * Note: The structure is cache line aligned. | |
964 | */ | |
965 | struct __vxge_hw_fifo { | |
966 | struct __vxge_hw_channel channel; | |
967 | struct vxge_hw_mempool *mempool; | |
968 | struct vxge_hw_fifo_config *config; | |
969 | struct vxge_hw_vpath_reg __iomem *vp_reg; | |
970 | struct __vxge_hw_non_offload_db_wrapper __iomem *nofl_db; | |
971 | u64 interrupt_type; | |
972 | u32 no_snoop_bits; | |
973 | u32 txdl_per_memblock; | |
974 | u32 txdl_size; | |
975 | u32 priv_size; | |
976 | u32 per_txdl_space; | |
977 | u32 vp_id; | |
978 | u32 tx_intr_num; | |
979 | ||
980 | enum vxge_hw_status (*callback)( | |
981 | struct __vxge_hw_fifo *fifo_handle, | |
982 | void *txdlh, | |
983 | enum vxge_hw_fifo_tcode t_code, | |
984 | void *userdata, | |
ff67df55 BL |
985 | struct sk_buff ***skb_ptr, |
986 | int nr_skb, | |
987 | int *more); | |
40a3a915 RV |
988 | |
989 | void (*txdl_term)( | |
990 | void *txdlh, | |
991 | enum vxge_hw_txdl_state state, | |
992 | void *userdata); | |
993 | ||
994 | struct vxge_hw_vpath_stats_sw_fifo_info *stats ____cacheline_aligned; | |
995 | } ____cacheline_aligned; | |
996 | ||
997 | /* | |
998 | * struct __vxge_hw_fifo_txdl_priv - Transmit descriptor HW-private data. | |
999 | * @dma_addr: DMA (mapped) address of _this_ descriptor. | |
1000 | * @dma_handle: DMA handle used to map the descriptor onto device. | |
1001 | * @dma_offset: Descriptor's offset in the memory block. HW allocates | |
1002 | * descriptors in memory blocks (see struct vxge_hw_fifo_config{}) | |
1003 | * Each memblock is a contiguous block of DMA-able memory. | |
1004 | * @frags: Total number of fragments (that is, contiguous data buffers) | |
1005 | * carried by this TxDL. | |
1006 | * @align_vaddr_start: Aligned virtual address start | |
1007 | * @align_vaddr: Virtual address of the per-TxDL area in memory used for | |
1008 | * alignement. Used to place one or more mis-aligned fragments | |
1009 | * @align_dma_addr: DMA address translated from the @align_vaddr. | |
1010 | * @align_dma_handle: DMA handle that corresponds to @align_dma_addr. | |
1011 | * @align_dma_acch: DMA access handle corresponds to @align_dma_addr. | |
1012 | * @align_dma_offset: The current offset into the @align_vaddr area. | |
1013 | * Grows while filling the descriptor, gets reset. | |
1014 | * @align_used_frags: Number of fragments used. | |
1015 | * @alloc_frags: Total number of fragments allocated. | |
1016 | * @unused: TODO | |
1017 | * @next_txdl_priv: (TODO). | |
1018 | * @first_txdp: (TODO). | |
1019 | * @linked_txdl_priv: Pointer to any linked TxDL for creating contiguous | |
1020 | * TxDL list. | |
1021 | * @txdlh: Corresponding txdlh to this TxDL. | |
1022 | * @memblock: Pointer to the TxDL memory block or memory page. | |
1023 | * on the next send operation. | |
1024 | * @dma_object: DMA address and handle of the memory block that contains | |
1025 | * the descriptor. This member is used only in the "checked" | |
1026 | * version of the HW (to enforce certain assertions); | |
1027 | * otherwise it gets compiled out. | |
1028 | * @allocated: True if the descriptor is reserved, 0 otherwise. Internal usage. | |
1029 | * | |
1030 | * Per-transmit decsriptor HW-private data. HW uses the space to keep DMA | |
1031 | * information associated with the descriptor. Note that driver can ask HW | |
1032 | * to allocate additional per-descriptor space for its own (driver-specific) | |
1033 | * purposes. | |
1034 | * | |
1035 | * See also: struct vxge_hw_ring_rxd_priv{}. | |
1036 | */ | |
1037 | struct __vxge_hw_fifo_txdl_priv { | |
1038 | dma_addr_t dma_addr; | |
1039 | struct pci_dev *dma_handle; | |
1040 | ptrdiff_t dma_offset; | |
1041 | u32 frags; | |
1042 | u8 *align_vaddr_start; | |
1043 | u8 *align_vaddr; | |
1044 | dma_addr_t align_dma_addr; | |
1045 | struct pci_dev *align_dma_handle; | |
1046 | struct pci_dev *align_dma_acch; | |
1047 | ptrdiff_t align_dma_offset; | |
1048 | u32 align_used_frags; | |
1049 | u32 alloc_frags; | |
1050 | u32 unused; | |
1051 | struct __vxge_hw_fifo_txdl_priv *next_txdl_priv; | |
1052 | struct vxge_hw_fifo_txd *first_txdp; | |
1053 | void *memblock; | |
1054 | }; | |
1055 | ||
1056 | /* | |
1057 | * struct __vxge_hw_non_offload_db_wrapper - Non-offload Doorbell Wrapper | |
1058 | * @control_0: Bits 0 to 7 - Doorbell type. | |
1059 | * Bits 8 to 31 - Reserved. | |
1060 | * Bits 32 to 39 - The highest TxD in this TxDL. | |
1061 | * Bits 40 to 47 - Reserved. | |
1062 | * Bits 48 to 55 - Reserved. | |
1063 | * Bits 56 to 63 - No snoop flags. | |
1064 | * @txdl_ptr: The starting location of the TxDL in host memory. | |
1065 | * | |
1066 | * Created by the host and written to the adapter via PIO to a Kernel Doorbell | |
1067 | * FIFO. All non-offload doorbell wrapper fields must be written by the host as | |
1068 | * part of a doorbell write. Consumed by the adapter but is not written by the | |
1069 | * adapter. | |
1070 | */ | |
1071 | struct __vxge_hw_non_offload_db_wrapper { | |
1072 | u64 control_0; | |
1073 | #define VXGE_HW_NODBW_GET_TYPE(ctrl0) vxge_bVALn(ctrl0, 0, 8) | |
1074 | #define VXGE_HW_NODBW_TYPE(val) vxge_vBIT(val, 0, 8) | |
1075 | #define VXGE_HW_NODBW_TYPE_NODBW 0 | |
1076 | ||
1077 | #define VXGE_HW_NODBW_GET_LAST_TXD_NUMBER(ctrl0) vxge_bVALn(ctrl0, 32, 8) | |
1078 | #define VXGE_HW_NODBW_LAST_TXD_NUMBER(val) vxge_vBIT(val, 32, 8) | |
1079 | ||
1080 | #define VXGE_HW_NODBW_GET_NO_SNOOP(ctrl0) vxge_bVALn(ctrl0, 56, 8) | |
1081 | #define VXGE_HW_NODBW_LIST_NO_SNOOP(val) vxge_vBIT(val, 56, 8) | |
1082 | #define VXGE_HW_NODBW_LIST_NO_SNOOP_TXD_READ_TXD0_WRITE 0x2 | |
1083 | #define VXGE_HW_NODBW_LIST_NO_SNOOP_TX_FRAME_DATA_READ 0x1 | |
1084 | ||
1085 | u64 txdl_ptr; | |
1086 | }; | |
1087 | ||
1088 | /* | |
1089 | * TX Descriptor | |
1090 | */ | |
1091 | ||
1092 | /** | |
1093 | * struct vxge_hw_fifo_txd - Transmit Descriptor | |
1094 | * @control_0: Bits 0 to 6 - Reserved. | |
1095 | * Bit 7 - List Ownership. This field should be initialized | |
1096 | * to '1' by the driver before the transmit list pointer is | |
1097 | * written to the adapter. This field will be set to '0' by the | |
1098 | * adapter once it has completed transmitting the frame or frames in | |
1099 | * the list. Note - This field is only valid in TxD0. Additionally, | |
1100 | * for multi-list sequences, the driver should not release any | |
1101 | * buffers until the ownership of the last list in the multi-list | |
1102 | * sequence has been returned to the host. | |
1103 | * Bits 8 to 11 - Reserved | |
1104 | * Bits 12 to 15 - Transfer_Code. This field is only valid in | |
1105 | * TxD0. It is used to describe the status of the transmit data | |
1106 | * buffer transfer. This field is always overwritten by the | |
1107 | * adapter, so this field may be initialized to any value. | |
1108 | * Bits 16 to 17 - Host steering. This field allows the host to | |
1109 | * override the selection of the physical transmit port. | |
1110 | * Attention: | |
1111 | * Normal sounds as if learned from the switch rather than from | |
1112 | * the aggregation algorythms. | |
1113 | * 00: Normal. Use Destination/MAC Address | |
1114 | * lookup to determine the transmit port. | |
1115 | * 01: Send on physical Port1. | |
1116 | * 10: Send on physical Port0. | |
1117 | * 11: Send on both ports. | |
1118 | * Bits 18 to 21 - Reserved | |
1119 | * Bits 22 to 23 - Gather_Code. This field is set by the host and | |
1120 | * is used to describe how individual buffers comprise a frame. | |
1121 | * 10: First descriptor of a frame. | |
1122 | * 00: Middle of a multi-descriptor frame. | |
1123 | * 01: Last descriptor of a frame. | |
1124 | * 11: First and last descriptor of a frame (the entire frame | |
1125 | * resides in a single buffer). | |
1126 | * For multi-descriptor frames, the only valid gather code sequence | |
1127 | * is {10, [00], 01}. In other words, the descriptors must be placed | |
1128 | * in the list in the correct order. | |
1129 | * Bits 24 to 27 - Reserved | |
1130 | * Bits 28 to 29 - LSO_Frm_Encap. LSO Frame Encapsulation | |
1131 | * definition. Only valid in TxD0. This field allows the host to | |
1132 | * indicate the Ethernet encapsulation of an outbound LSO packet. | |
1133 | * 00 - classic mode (best guess) | |
1134 | * 01 - LLC | |
1135 | * 10 - SNAP | |
1136 | * 11 - DIX | |
1137 | * If "classic mode" is selected, the adapter will attempt to | |
1138 | * decode the frame's Ethernet encapsulation by examining the L/T | |
1139 | * field as follows: | |
1140 | * <= 0x05DC LLC/SNAP encoding; must examine DSAP/SSAP to determine | |
1141 | * if packet is IPv4 or IPv6. | |
1142 | * 0x8870 Jumbo-SNAP encoding. | |
1143 | * 0x0800 IPv4 DIX encoding | |
1144 | * 0x86DD IPv6 DIX encoding | |
1145 | * others illegal encapsulation | |
1146 | * Bits 30 - LSO_ Flag. Large Send Offload (LSO) flag. | |
1147 | * Set to 1 to perform segmentation offload for TCP/UDP. | |
1148 | * This field is valid only in TxD0. | |
1149 | * Bits 31 to 33 - Reserved. | |
1150 | * Bits 34 to 47 - LSO_MSS. TCP/UDP LSO Maximum Segment Size | |
1151 | * This field is meaningful only when LSO_Control is non-zero. | |
1152 | * When LSO_Control is set to TCP_LSO, the single (possibly large) | |
1153 | * TCP segment described by this TxDL will be sent as a series of | |
1154 | * TCP segments each of which contains no more than LSO_MSS | |
1155 | * payload bytes. | |
1156 | * When LSO_Control is set to UDP_LSO, the single (possibly large) | |
1157 | * UDP datagram described by this TxDL will be sent as a series of | |
1158 | * UDP datagrams each of which contains no more than LSO_MSS | |
1159 | * payload bytes. | |
1160 | * All outgoing frames from this TxDL will have LSO_MSS bytes of UDP | |
1161 | * or TCP payload, with the exception of the last, which will have | |
1162 | * <= LSO_MSS bytes of payload. | |
1163 | * Bits 48 to 63 - Buffer_Size. Number of valid bytes in the | |
1164 | * buffer to be read by the adapter. This field is written by the | |
1165 | * host. A value of 0 is illegal. | |
1166 | * Bits 32 to 63 - This value is written by the adapter upon | |
1167 | * completion of a UDP or TCP LSO operation and indicates the number | |
1168 | * of UDP or TCP payload bytes that were transmitted. 0x0000 will be | |
1169 | * returned for any non-LSO operation. | |
1170 | * @control_1: Bits 0 to 4 - Reserved. | |
1171 | * Bit 5 - Tx_CKO_IPv4 Set to a '1' to enable IPv4 header checksum | |
1172 | * offload. This field is only valid in the first TxD of a frame. | |
1173 | * Bit 6 - Tx_CKO_TCP Set to a '1' to enable TCP checksum offload. | |
1174 | * This field is only valid in the first TxD of a frame (the TxD's | |
1175 | * gather code must be 10 or 11). The driver should only set this | |
1176 | * bit if it can guarantee that TCP is present. | |
1177 | * Bit 7 - Tx_CKO_UDP Set to a '1' to enable UDP checksum offload. | |
1178 | * This field is only valid in the first TxD of a frame (the TxD's | |
1179 | * gather code must be 10 or 11). The driver should only set this | |
1180 | * bit if it can guarantee that UDP is present. | |
1181 | * Bits 8 to 14 - Reserved. | |
1182 | * Bit 15 - Tx_VLAN_Enable VLAN tag insertion flag. Set to a '1' to | |
1183 | * instruct the adapter to insert the VLAN tag specified by the | |
1184 | * Tx_VLAN_Tag field. This field is only valid in the first TxD of | |
1185 | * a frame. | |
1186 | * Bits 16 to 31 - Tx_VLAN_Tag. Variable portion of the VLAN tag | |
1187 | * to be inserted into the frame by the adapter (the first two bytes | |
1188 | * of a VLAN tag are always 0x8100). This field is only valid if the | |
1189 | * Tx_VLAN_Enable field is set to '1'. | |
1190 | * Bits 32 to 33 - Reserved. | |
1191 | * Bits 34 to 39 - Tx_Int_Number. Indicates which Tx interrupt | |
1192 | * number the frame associated with. This field is written by the | |
1193 | * host. It is only valid in the first TxD of a frame. | |
1194 | * Bits 40 to 42 - Reserved. | |
1195 | * Bit 43 - Set to 1 to exclude the frame from bandwidth metering | |
1196 | * functions. This field is valid only in the first TxD | |
1197 | * of a frame. | |
1198 | * Bits 44 to 45 - Reserved. | |
1199 | * Bit 46 - Tx_Int_Per_List Set to a '1' to instruct the adapter to | |
1200 | * generate an interrupt as soon as all of the frames in the list | |
1201 | * have been transmitted. In order to have per-frame interrupts, | |
1202 | * the driver should place a maximum of one frame per list. This | |
1203 | * field is only valid in the first TxD of a frame. | |
1204 | * Bit 47 - Tx_Int_Utilization Set to a '1' to instruct the adapter | |
1205 | * to count the frame toward the utilization interrupt specified in | |
1206 | * the Tx_Int_Number field. This field is only valid in the first | |
1207 | * TxD of a frame. | |
1208 | * Bits 48 to 63 - Reserved. | |
1209 | * @buffer_pointer: Buffer start address. | |
1210 | * @host_control: Host_Control.Opaque 64bit data stored by driver inside the | |
1211 | * Titan descriptor prior to posting the latter on the fifo | |
1212 | * via vxge_hw_fifo_txdl_post().The %host_control is returned as is | |
1213 | * to the driver with each completed descriptor. | |
1214 | * | |
1215 | * Transmit descriptor (TxD).Fifo descriptor contains configured number | |
1216 | * (list) of TxDs. * For more details please refer to Titan User Guide, | |
1217 | * Section 5.4.2 "Transmit Descriptor (TxD) Format". | |
1218 | */ | |
1219 | struct vxge_hw_fifo_txd { | |
1220 | u64 control_0; | |
1221 | #define VXGE_HW_FIFO_TXD_LIST_OWN_ADAPTER vxge_mBIT(7) | |
1222 | ||
1223 | #define VXGE_HW_FIFO_TXD_T_CODE_GET(ctrl0) vxge_bVALn(ctrl0, 12, 4) | |
1224 | #define VXGE_HW_FIFO_TXD_T_CODE(val) vxge_vBIT(val, 12, 4) | |
1225 | #define VXGE_HW_FIFO_TXD_T_CODE_UNUSED VXGE_HW_FIFO_T_CODE_UNUSED | |
1226 | ||
1227 | ||
1228 | #define VXGE_HW_FIFO_TXD_GATHER_CODE(val) vxge_vBIT(val, 22, 2) | |
1229 | #define VXGE_HW_FIFO_TXD_GATHER_CODE_FIRST VXGE_HW_FIFO_GATHER_CODE_FIRST | |
1230 | #define VXGE_HW_FIFO_TXD_GATHER_CODE_LAST VXGE_HW_FIFO_GATHER_CODE_LAST | |
1231 | ||
1232 | ||
1233 | #define VXGE_HW_FIFO_TXD_LSO_EN vxge_mBIT(30) | |
1234 | ||
1235 | #define VXGE_HW_FIFO_TXD_LSO_MSS(val) vxge_vBIT(val, 34, 14) | |
1236 | ||
1237 | #define VXGE_HW_FIFO_TXD_BUFFER_SIZE(val) vxge_vBIT(val, 48, 16) | |
1238 | ||
1239 | u64 control_1; | |
1240 | #define VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN vxge_mBIT(5) | |
1241 | #define VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN vxge_mBIT(6) | |
1242 | #define VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN vxge_mBIT(7) | |
1243 | #define VXGE_HW_FIFO_TXD_VLAN_ENABLE vxge_mBIT(15) | |
1244 | ||
1245 | #define VXGE_HW_FIFO_TXD_VLAN_TAG(val) vxge_vBIT(val, 16, 16) | |
1246 | ||
1247 | #define VXGE_HW_FIFO_TXD_INT_NUMBER(val) vxge_vBIT(val, 34, 6) | |
1248 | ||
1249 | #define VXGE_HW_FIFO_TXD_INT_TYPE_PER_LIST vxge_mBIT(46) | |
1250 | #define VXGE_HW_FIFO_TXD_INT_TYPE_UTILZ vxge_mBIT(47) | |
1251 | ||
1252 | u64 buffer_pointer; | |
1253 | ||
1254 | u64 host_control; | |
1255 | }; | |
1256 | ||
1257 | /** | |
1258 | * struct vxge_hw_ring_rxd_1 - One buffer mode RxD for ring | |
1259 | * @host_control: This field is exclusively for host use and is "readonly" | |
1260 | * from the adapter's perspective. | |
1261 | * @control_0:Bits 0 to 6 - RTH_Bucket get | |
1262 | * Bit 7 - Own Descriptor ownership bit. This bit is set to 1 | |
1263 | * by the host, and is set to 0 by the adapter. | |
1264 | * 0 - Host owns RxD and buffer. | |
1265 | * 1 - The adapter owns RxD and buffer. | |
1266 | * Bit 8 - Fast_Path_Eligible When set, indicates that the | |
1267 | * received frame meets all of the criteria for fast path processing. | |
1268 | * The required criteria are as follows: | |
1269 | * !SYN & | |
1270 | * (Transfer_Code == "Transfer OK") & | |
1271 | * (!Is_IP_Fragment) & | |
1272 | * ((Is_IPv4 & computed_L3_checksum == 0xFFFF) | | |
1273 | * (Is_IPv6)) & | |
1274 | * ((Is_TCP & computed_L4_checksum == 0xFFFF) | | |
1275 | * (Is_UDP & (computed_L4_checksum == 0xFFFF | | |
1276 | * computed _L4_checksum == 0x0000))) | |
1277 | * (same meaning for all RxD buffer modes) | |
1278 | * Bit 9 - L3 Checksum Correct | |
1279 | * Bit 10 - L4 Checksum Correct | |
1280 | * Bit 11 - Reserved | |
1281 | * Bit 12 to 15 - This field is written by the adapter. It is | |
1282 | * used to report the status of the frame transfer to the host. | |
1283 | * 0x0 - Transfer OK | |
1284 | * 0x4 - RDA Failure During Transfer | |
1285 | * 0x5 - Unparseable Packet, such as unknown IPv6 header. | |
1286 | * 0x6 - Frame integrity error (FCS or ECC). | |
1287 | * 0x7 - Buffer Size Error. The provided buffer(s) were not | |
1288 | * appropriately sized and data loss occurred. | |
1289 | * 0x8 - Internal ECC Error. RxD corrupted. | |
1290 | * 0x9 - IPv4 Checksum error | |
1291 | * 0xA - TCP/UDP Checksum error | |
1292 | * 0xF - Unknown Error or Multiple Error. Indicates an | |
1293 | * unknown problem or that more than one of transfer codes is set. | |
1294 | * Bit 16 - SYN The adapter sets this field to indicate that | |
1295 | * the incoming frame contained a TCP segment with its SYN bit | |
1296 | * set and its ACK bit NOT set. (same meaning for all RxD buffer | |
1297 | * modes) | |
1298 | * Bit 17 - Is ICMP | |
1299 | * Bit 18 - RTH_SPDM_HIT Set to 1 if there was a match in the | |
1300 | * Socket Pair Direct Match Table and the frame was steered based | |
1301 | * on SPDM. | |
1302 | * Bit 19 - RTH_IT_HIT Set to 1 if there was a match in the | |
1303 | * Indirection Table and the frame was steered based on hash | |
1304 | * indirection. | |
1305 | * Bit 20 to 23 - RTH_HASH_TYPE Indicates the function (hash | |
1306 | * type) that was used to calculate the hash. | |
1307 | * Bit 19 - IS_VLAN Set to '1' if the frame was/is VLAN | |
1308 | * tagged. | |
1309 | * Bit 25 to 26 - ETHER_ENCAP Reflects the Ethernet encapsulation | |
1310 | * of the received frame. | |
1311 | * 0x0 - Ethernet DIX | |
1312 | * 0x1 - LLC | |
1313 | * 0x2 - SNAP (includes Jumbo-SNAP) | |
1314 | * 0x3 - IPX | |
1315 | * Bit 27 - IS_IPV4 Set to '1' if the frame contains an IPv4 packet. | |
1316 | * Bit 28 - IS_IPV6 Set to '1' if the frame contains an IPv6 packet. | |
1317 | * Bit 29 - IS_IP_FRAG Set to '1' if the frame contains a fragmented | |
1318 | * IP packet. | |
1319 | * Bit 30 - IS_TCP Set to '1' if the frame contains a TCP segment. | |
1320 | * Bit 31 - IS_UDP Set to '1' if the frame contains a UDP message. | |
1321 | * Bit 32 to 47 - L3_Checksum[0:15] The IPv4 checksum value that | |
1322 | * arrived with the frame. If the resulting computed IPv4 header | |
1323 | * checksum for the frame did not produce the expected 0xFFFF value, | |
1324 | * then the transfer code would be set to 0x9. | |
1325 | * Bit 48 to 63 - L4_Checksum[0:15] The TCP/UDP checksum value that | |
1326 | * arrived with the frame. If the resulting computed TCP/UDP checksum | |
1327 | * for the frame did not produce the expected 0xFFFF value, then the | |
1328 | * transfer code would be set to 0xA. | |
1329 | * @control_1:Bits 0 to 1 - Reserved | |
1330 | * Bits 2 to 15 - Buffer0_Size.This field is set by the host and | |
1331 | * eventually overwritten by the adapter. The host writes the | |
1332 | * available buffer size in bytes when it passes the descriptor to | |
1333 | * the adapter. When a frame is delivered the host, the adapter | |
1334 | * populates this field with the number of bytes written into the | |
1335 | * buffer. The largest supported buffer is 16, 383 bytes. | |
1336 | * Bit 16 to 47 - RTH Hash Value 32-bit RTH hash value. Only valid if | |
1337 | * RTH_HASH_TYPE (Control_0, bits 20:23) is nonzero. | |
1338 | * Bit 48 to 63 - VLAN_Tag[0:15] The contents of the variable portion | |
1339 | * of the VLAN tag, if one was detected by the adapter. This field is | |
1340 | * populated even if VLAN-tag stripping is enabled. | |
1341 | * @buffer0_ptr: Pointer to buffer. This field is populated by the driver. | |
1342 | * | |
1343 | * One buffer mode RxD for ring structure | |
1344 | */ | |
1345 | struct vxge_hw_ring_rxd_1 { | |
1346 | u64 host_control; | |
1347 | u64 control_0; | |
1348 | #define VXGE_HW_RING_RXD_RTH_BUCKET_GET(ctrl0) vxge_bVALn(ctrl0, 0, 7) | |
1349 | ||
1350 | #define VXGE_HW_RING_RXD_LIST_OWN_ADAPTER vxge_mBIT(7) | |
1351 | ||
1352 | #define VXGE_HW_RING_RXD_FAST_PATH_ELIGIBLE_GET(ctrl0) vxge_bVALn(ctrl0, 8, 1) | |
1353 | ||
1354 | #define VXGE_HW_RING_RXD_L3_CKSUM_CORRECT_GET(ctrl0) vxge_bVALn(ctrl0, 9, 1) | |
1355 | ||
1356 | #define VXGE_HW_RING_RXD_L4_CKSUM_CORRECT_GET(ctrl0) vxge_bVALn(ctrl0, 10, 1) | |
1357 | ||
1358 | #define VXGE_HW_RING_RXD_T_CODE_GET(ctrl0) vxge_bVALn(ctrl0, 12, 4) | |
1359 | #define VXGE_HW_RING_RXD_T_CODE(val) vxge_vBIT(val, 12, 4) | |
1360 | ||
1361 | #define VXGE_HW_RING_RXD_T_CODE_UNUSED VXGE_HW_RING_T_CODE_UNUSED | |
1362 | ||
1363 | #define VXGE_HW_RING_RXD_SYN_GET(ctrl0) vxge_bVALn(ctrl0, 16, 1) | |
1364 | ||
1365 | #define VXGE_HW_RING_RXD_IS_ICMP_GET(ctrl0) vxge_bVALn(ctrl0, 17, 1) | |
1366 | ||
1367 | #define VXGE_HW_RING_RXD_RTH_SPDM_HIT_GET(ctrl0) vxge_bVALn(ctrl0, 18, 1) | |
1368 | ||
1369 | #define VXGE_HW_RING_RXD_RTH_IT_HIT_GET(ctrl0) vxge_bVALn(ctrl0, 19, 1) | |
1370 | ||
1371 | #define VXGE_HW_RING_RXD_RTH_HASH_TYPE_GET(ctrl0) vxge_bVALn(ctrl0, 20, 4) | |
1372 | ||
1373 | #define VXGE_HW_RING_RXD_IS_VLAN_GET(ctrl0) vxge_bVALn(ctrl0, 24, 1) | |
1374 | ||
1375 | #define VXGE_HW_RING_RXD_ETHER_ENCAP_GET(ctrl0) vxge_bVALn(ctrl0, 25, 2) | |
1376 | ||
1377 | #define VXGE_HW_RING_RXD_FRAME_PROTO_GET(ctrl0) vxge_bVALn(ctrl0, 27, 5) | |
1378 | ||
1379 | #define VXGE_HW_RING_RXD_L3_CKSUM_GET(ctrl0) vxge_bVALn(ctrl0, 32, 16) | |
1380 | ||
1381 | #define VXGE_HW_RING_RXD_L4_CKSUM_GET(ctrl0) vxge_bVALn(ctrl0, 48, 16) | |
1382 | ||
1383 | u64 control_1; | |
1384 | ||
1385 | #define VXGE_HW_RING_RXD_1_BUFFER0_SIZE_GET(ctrl1) vxge_bVALn(ctrl1, 2, 14) | |
1386 | #define VXGE_HW_RING_RXD_1_BUFFER0_SIZE(val) vxge_vBIT(val, 2, 14) | |
1387 | #define VXGE_HW_RING_RXD_1_BUFFER0_SIZE_MASK vxge_vBIT(0x3FFF, 2, 14) | |
1388 | ||
1389 | #define VXGE_HW_RING_RXD_1_RTH_HASH_VAL_GET(ctrl1) vxge_bVALn(ctrl1, 16, 32) | |
1390 | ||
1391 | #define VXGE_HW_RING_RXD_VLAN_TAG_GET(ctrl1) vxge_bVALn(ctrl1, 48, 16) | |
1392 | ||
1393 | u64 buffer0_ptr; | |
1394 | }; | |
1395 | ||
1396 | enum vxge_hw_rth_algoritms { | |
1397 | RTH_ALG_JENKINS = 0, | |
1398 | RTH_ALG_MS_RSS = 1, | |
1399 | RTH_ALG_CRC32C = 2 | |
1400 | }; | |
1401 | ||
1402 | /** | |
1403 | * struct vxge_hw_rth_hash_types - RTH hash types. | |
1404 | * @hash_type_tcpipv4_en: Enables RTH field type HashTypeTcpIPv4 | |
1405 | * @hash_type_ipv4_en: Enables RTH field type HashTypeIPv4 | |
1406 | * @hash_type_tcpipv6_en: Enables RTH field type HashTypeTcpIPv6 | |
1407 | * @hash_type_ipv6_en: Enables RTH field type HashTypeIPv6 | |
1408 | * @hash_type_tcpipv6ex_en: Enables RTH field type HashTypeTcpIPv6Ex | |
1409 | * @hash_type_ipv6ex_en: Enables RTH field type HashTypeIPv6Ex | |
1410 | * | |
1411 | * Used to pass RTH hash types to rts_rts_set. | |
1412 | * | |
1413 | * See also: vxge_hw_vpath_rts_rth_set(), vxge_hw_vpath_rts_rth_get(). | |
1414 | */ | |
1415 | struct vxge_hw_rth_hash_types { | |
1416 | u8 hash_type_tcpipv4_en; | |
1417 | u8 hash_type_ipv4_en; | |
1418 | u8 hash_type_tcpipv6_en; | |
1419 | u8 hash_type_ipv6_en; | |
1420 | u8 hash_type_tcpipv6ex_en; | |
1421 | u8 hash_type_ipv6ex_en; | |
1422 | }; | |
1423 | ||
40a3a915 RV |
1424 | void vxge_hw_device_debug_set( |
1425 | struct __vxge_hw_device *devh, | |
1426 | enum vxge_debug_level level, | |
1427 | u32 mask); | |
1428 | ||
1429 | u32 | |
1430 | vxge_hw_device_error_level_get(struct __vxge_hw_device *devh); | |
1431 | ||
1432 | u32 | |
1433 | vxge_hw_device_trace_level_get(struct __vxge_hw_device *devh); | |
1434 | ||
40a3a915 RV |
1435 | /** |
1436 | * vxge_hw_ring_rxd_size_get - Get the size of ring descriptor. | |
1437 | * @buf_mode: Buffer mode (1, 3 or 5) | |
1438 | * | |
1439 | * This function returns the size of RxD for given buffer mode | |
1440 | */ | |
1441 | static inline u32 vxge_hw_ring_rxd_size_get(u32 buf_mode) | |
1442 | { | |
1443 | return sizeof(struct vxge_hw_ring_rxd_1); | |
1444 | } | |
1445 | ||
1446 | /** | |
1447 | * vxge_hw_ring_rxds_per_block_get - Get the number of rxds per block. | |
1448 | * @buf_mode: Buffer mode (1 buffer mode only) | |
1449 | * | |
1450 | * This function returns the number of RxD for RxD block for given buffer mode | |
1451 | */ | |
1452 | static inline u32 vxge_hw_ring_rxds_per_block_get(u32 buf_mode) | |
1453 | { | |
1454 | return (u32)((VXGE_HW_BLOCK_SIZE-16) / | |
1455 | sizeof(struct vxge_hw_ring_rxd_1)); | |
1456 | } | |
1457 | ||
1458 | /** | |
1459 | * vxge_hw_ring_rxd_1b_set - Prepare 1-buffer-mode descriptor. | |
1460 | * @rxdh: Descriptor handle. | |
1461 | * @dma_pointer: DMA address of a single receive buffer this descriptor | |
1462 | * should carry. Note that by the time vxge_hw_ring_rxd_1b_set is called, | |
1463 | * the receive buffer should be already mapped to the device | |
1464 | * @size: Size of the receive @dma_pointer buffer. | |
1465 | * | |
1466 | * Prepare 1-buffer-mode Rx descriptor for posting | |
1467 | * (via vxge_hw_ring_rxd_post()). | |
1468 | * | |
1469 | * This inline helper-function does not return any parameters and always | |
1470 | * succeeds. | |
1471 | * | |
1472 | */ | |
1473 | static inline | |
1474 | void vxge_hw_ring_rxd_1b_set( | |
1475 | void *rxdh, | |
1476 | dma_addr_t dma_pointer, | |
1477 | u32 size) | |
1478 | { | |
1479 | struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; | |
1480 | rxdp->buffer0_ptr = dma_pointer; | |
1481 | rxdp->control_1 &= ~VXGE_HW_RING_RXD_1_BUFFER0_SIZE_MASK; | |
1482 | rxdp->control_1 |= VXGE_HW_RING_RXD_1_BUFFER0_SIZE(size); | |
1483 | } | |
1484 | ||
1485 | /** | |
1486 | * vxge_hw_ring_rxd_1b_get - Get data from the completed 1-buf | |
1487 | * descriptor. | |
1488 | * @vpath_handle: Virtual Path handle. | |
1489 | * @rxdh: Descriptor handle. | |
1490 | * @dma_pointer: DMA address of a single receive buffer this descriptor | |
1491 | * carries. Returned by HW. | |
1492 | * @pkt_length: Length (in bytes) of the data in the buffer pointed by | |
1493 | * | |
1494 | * Retrieve protocol data from the completed 1-buffer-mode Rx descriptor. | |
1495 | * This inline helper-function uses completed descriptor to populate receive | |
1496 | * buffer pointer and other "out" parameters. The function always succeeds. | |
1497 | * | |
1498 | */ | |
1499 | static inline | |
1500 | void vxge_hw_ring_rxd_1b_get( | |
1501 | struct __vxge_hw_ring *ring_handle, | |
1502 | void *rxdh, | |
1503 | u32 *pkt_length) | |
1504 | { | |
1505 | struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; | |
1506 | ||
1507 | *pkt_length = | |
1508 | (u32)VXGE_HW_RING_RXD_1_BUFFER0_SIZE_GET(rxdp->control_1); | |
1509 | } | |
1510 | ||
1511 | /** | |
1512 | * vxge_hw_ring_rxd_1b_info_get - Get extended information associated with | |
1513 | * a completed receive descriptor for 1b mode. | |
1514 | * @vpath_handle: Virtual Path handle. | |
1515 | * @rxdh: Descriptor handle. | |
1516 | * @rxd_info: Descriptor information | |
1517 | * | |
1518 | * Retrieve extended information associated with a completed receive descriptor. | |
1519 | * | |
1520 | */ | |
1521 | static inline | |
1522 | void vxge_hw_ring_rxd_1b_info_get( | |
1523 | struct __vxge_hw_ring *ring_handle, | |
1524 | void *rxdh, | |
1525 | struct vxge_hw_ring_rxd_info *rxd_info) | |
1526 | { | |
1527 | ||
1528 | struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; | |
1529 | rxd_info->syn_flag = | |
1530 | (u32)VXGE_HW_RING_RXD_SYN_GET(rxdp->control_0); | |
1531 | rxd_info->is_icmp = | |
1532 | (u32)VXGE_HW_RING_RXD_IS_ICMP_GET(rxdp->control_0); | |
1533 | rxd_info->fast_path_eligible = | |
1534 | (u32)VXGE_HW_RING_RXD_FAST_PATH_ELIGIBLE_GET(rxdp->control_0); | |
1535 | rxd_info->l3_cksum_valid = | |
1536 | (u32)VXGE_HW_RING_RXD_L3_CKSUM_CORRECT_GET(rxdp->control_0); | |
1537 | rxd_info->l3_cksum = | |
1538 | (u32)VXGE_HW_RING_RXD_L3_CKSUM_GET(rxdp->control_0); | |
1539 | rxd_info->l4_cksum_valid = | |
1540 | (u32)VXGE_HW_RING_RXD_L4_CKSUM_CORRECT_GET(rxdp->control_0); | |
1541 | rxd_info->l4_cksum = | |
a419aef8 | 1542 | (u32)VXGE_HW_RING_RXD_L4_CKSUM_GET(rxdp->control_0); |
40a3a915 RV |
1543 | rxd_info->frame = |
1544 | (u32)VXGE_HW_RING_RXD_ETHER_ENCAP_GET(rxdp->control_0); | |
1545 | rxd_info->proto = | |
1546 | (u32)VXGE_HW_RING_RXD_FRAME_PROTO_GET(rxdp->control_0); | |
1547 | rxd_info->is_vlan = | |
1548 | (u32)VXGE_HW_RING_RXD_IS_VLAN_GET(rxdp->control_0); | |
1549 | rxd_info->vlan = | |
1550 | (u32)VXGE_HW_RING_RXD_VLAN_TAG_GET(rxdp->control_1); | |
1551 | rxd_info->rth_bucket = | |
1552 | (u32)VXGE_HW_RING_RXD_RTH_BUCKET_GET(rxdp->control_0); | |
1553 | rxd_info->rth_it_hit = | |
1554 | (u32)VXGE_HW_RING_RXD_RTH_IT_HIT_GET(rxdp->control_0); | |
1555 | rxd_info->rth_spdm_hit = | |
1556 | (u32)VXGE_HW_RING_RXD_RTH_SPDM_HIT_GET(rxdp->control_0); | |
1557 | rxd_info->rth_hash_type = | |
1558 | (u32)VXGE_HW_RING_RXD_RTH_HASH_TYPE_GET(rxdp->control_0); | |
1559 | rxd_info->rth_value = | |
1560 | (u32)VXGE_HW_RING_RXD_1_RTH_HASH_VAL_GET(rxdp->control_1); | |
1561 | } | |
1562 | ||
1563 | /** | |
1564 | * vxge_hw_ring_rxd_private_get - Get driver private per-descriptor data | |
1565 | * of 1b mode 3b mode ring. | |
1566 | * @rxdh: Descriptor handle. | |
1567 | * | |
1568 | * Returns: private driver info associated with the descriptor. | |
1569 | * driver requests per-descriptor space via vxge_hw_ring_attr. | |
1570 | * | |
1571 | */ | |
1572 | static inline void *vxge_hw_ring_rxd_private_get(void *rxdh) | |
1573 | { | |
1574 | struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; | |
1575 | return (void *)(size_t)rxdp->host_control; | |
1576 | } | |
1577 | ||
1578 | /** | |
1579 | * vxge_hw_fifo_txdl_cksum_set_bits - Offload checksum. | |
1580 | * @txdlh: Descriptor handle. | |
1581 | * @cksum_bits: Specifies which checksums are to be offloaded: IPv4, | |
1582 | * and/or TCP and/or UDP. | |
1583 | * | |
1584 | * Ask Titan to calculate IPv4 & transport checksums for _this_ transmit | |
1585 | * descriptor. | |
1586 | * This API is part of the preparation of the transmit descriptor for posting | |
1587 | * (via vxge_hw_fifo_txdl_post()). The related "preparation" APIs include | |
1588 | * vxge_hw_fifo_txdl_mss_set(), vxge_hw_fifo_txdl_buffer_set_aligned(), | |
1589 | * and vxge_hw_fifo_txdl_buffer_set(). | |
1590 | * All these APIs fill in the fields of the fifo descriptor, | |
1591 | * in accordance with the Titan specification. | |
1592 | * | |
1593 | */ | |
1594 | static inline void vxge_hw_fifo_txdl_cksum_set_bits(void *txdlh, u64 cksum_bits) | |
1595 | { | |
1596 | struct vxge_hw_fifo_txd *txdp = (struct vxge_hw_fifo_txd *)txdlh; | |
1597 | txdp->control_1 |= cksum_bits; | |
1598 | } | |
1599 | ||
1600 | /** | |
1601 | * vxge_hw_fifo_txdl_mss_set - Set MSS. | |
1602 | * @txdlh: Descriptor handle. | |
1603 | * @mss: MSS size for _this_ TCP connection. Passed by TCP stack down to the | |
1604 | * driver, which in turn inserts the MSS into the @txdlh. | |
1605 | * | |
1606 | * This API is part of the preparation of the transmit descriptor for posting | |
1607 | * (via vxge_hw_fifo_txdl_post()). The related "preparation" APIs include | |
1608 | * vxge_hw_fifo_txdl_buffer_set(), vxge_hw_fifo_txdl_buffer_set_aligned(), | |
1609 | * and vxge_hw_fifo_txdl_cksum_set_bits(). | |
1610 | * All these APIs fill in the fields of the fifo descriptor, | |
1611 | * in accordance with the Titan specification. | |
1612 | * | |
1613 | */ | |
1614 | static inline void vxge_hw_fifo_txdl_mss_set(void *txdlh, int mss) | |
1615 | { | |
1616 | struct vxge_hw_fifo_txd *txdp = (struct vxge_hw_fifo_txd *)txdlh; | |
1617 | ||
1618 | txdp->control_0 |= VXGE_HW_FIFO_TXD_LSO_EN; | |
1619 | txdp->control_0 |= VXGE_HW_FIFO_TXD_LSO_MSS(mss); | |
1620 | } | |
1621 | ||
1622 | /** | |
1623 | * vxge_hw_fifo_txdl_vlan_set - Set VLAN tag. | |
1624 | * @txdlh: Descriptor handle. | |
1625 | * @vlan_tag: 16bit VLAN tag. | |
1626 | * | |
1627 | * Insert VLAN tag into specified transmit descriptor. | |
1628 | * The actual insertion of the tag into outgoing frame is done by the hardware. | |
1629 | */ | |
1630 | static inline void vxge_hw_fifo_txdl_vlan_set(void *txdlh, u16 vlan_tag) | |
1631 | { | |
1632 | struct vxge_hw_fifo_txd *txdp = (struct vxge_hw_fifo_txd *)txdlh; | |
1633 | ||
1634 | txdp->control_1 |= VXGE_HW_FIFO_TXD_VLAN_ENABLE; | |
1635 | txdp->control_1 |= VXGE_HW_FIFO_TXD_VLAN_TAG(vlan_tag); | |
1636 | } | |
1637 | ||
1638 | /** | |
1639 | * vxge_hw_fifo_txdl_private_get - Retrieve per-descriptor private data. | |
1640 | * @txdlh: Descriptor handle. | |
1641 | * | |
1642 | * Retrieve per-descriptor private data. | |
1643 | * Note that driver requests per-descriptor space via | |
1644 | * struct vxge_hw_fifo_attr passed to | |
1645 | * vxge_hw_vpath_open(). | |
1646 | * | |
1647 | * Returns: private driver data associated with the descriptor. | |
1648 | */ | |
1649 | static inline void *vxge_hw_fifo_txdl_private_get(void *txdlh) | |
1650 | { | |
1651 | struct vxge_hw_fifo_txd *txdp = (struct vxge_hw_fifo_txd *)txdlh; | |
1652 | ||
1653 | return (void *)(size_t)txdp->host_control; | |
1654 | } | |
1655 | ||
1656 | /** | |
1657 | * struct vxge_hw_ring_attr - Ring open "template". | |
1658 | * @callback: Ring completion callback. HW invokes the callback when there | |
1659 | * are new completions on that ring. In many implementations | |
1660 | * the @callback executes in the hw interrupt context. | |
1661 | * @rxd_init: Ring's descriptor-initialize callback. | |
1662 | * See vxge_hw_ring_rxd_init_f{}. | |
1663 | * If not NULL, HW invokes the callback when opening | |
1664 | * the ring. | |
1665 | * @rxd_term: Ring's descriptor-terminate callback. If not NULL, | |
1666 | * HW invokes the callback when closing the corresponding ring. | |
1667 | * See also vxge_hw_ring_rxd_term_f{}. | |
1668 | * @userdata: User-defined "context" of _that_ ring. Passed back to the | |
1669 | * user as one of the @callback, @rxd_init, and @rxd_term arguments. | |
1670 | * @per_rxd_space: If specified (i.e., greater than zero): extra space | |
1671 | * reserved by HW per each receive descriptor. | |
1672 | * Can be used to store | |
1673 | * and retrieve on completion, information specific | |
1674 | * to the driver. | |
1675 | * | |
1676 | * Ring open "template". User fills the structure with ring | |
1677 | * attributes and passes it to vxge_hw_vpath_open(). | |
1678 | */ | |
1679 | struct vxge_hw_ring_attr { | |
1680 | enum vxge_hw_status (*callback)( | |
1681 | struct __vxge_hw_ring *ringh, | |
1682 | void *rxdh, | |
1683 | u8 t_code, | |
1684 | void *userdata); | |
1685 | ||
1686 | enum vxge_hw_status (*rxd_init)( | |
1687 | void *rxdh, | |
1688 | void *userdata); | |
1689 | ||
1690 | void (*rxd_term)( | |
1691 | void *rxdh, | |
1692 | enum vxge_hw_rxd_state state, | |
1693 | void *userdata); | |
1694 | ||
1695 | void *userdata; | |
1696 | u32 per_rxd_space; | |
1697 | }; | |
1698 | ||
1699 | /** | |
1700 | * function vxge_hw_fifo_callback_f - FIFO callback. | |
1701 | * @vpath_handle: Virtual path whose Fifo "containing" 1 or more completed | |
1702 | * descriptors. | |
1703 | * @txdlh: First completed descriptor. | |
1704 | * @txdl_priv: Pointer to per txdl space allocated | |
1705 | * @t_code: Transfer code, as per Titan User Guide. | |
1706 | * Returned by HW. | |
1707 | * @host_control: Opaque 64bit data stored by driver inside the Titan | |
1708 | * descriptor prior to posting the latter on the fifo | |
1709 | * via vxge_hw_fifo_txdl_post(). The @host_control is returned | |
1710 | * as is to the driver with each completed descriptor. | |
1711 | * @userdata: Opaque per-fifo data specified at fifo open | |
1712 | * time, via vxge_hw_vpath_open(). | |
1713 | * | |
1714 | * Fifo completion callback (type declaration). A single per-fifo | |
1715 | * callback is specified at fifo open time, via | |
1716 | * vxge_hw_vpath_open(). Typically gets called as part of the processing | |
1717 | * of the Interrupt Service Routine. | |
1718 | * | |
1719 | * Fifo callback gets called by HW if, and only if, there is at least | |
1720 | * one new completion on a given fifo. Upon processing the first @txdlh driver | |
1721 | * is _supposed_ to continue consuming completions using: | |
1722 | * - vxge_hw_fifo_txdl_next_completed() | |
1723 | * | |
1724 | * Note that failure to process new completions in a timely fashion | |
1725 | * leads to VXGE_HW_INF_OUT_OF_DESCRIPTORS condition. | |
1726 | * | |
1727 | * Non-zero @t_code means failure to process transmit descriptor. | |
1728 | * | |
1729 | * In the "transmit" case the failure could happen, for instance, when the | |
1730 | * link is down, in which case Titan completes the descriptor because it | |
1731 | * is not able to send the data out. | |
1732 | * | |
1733 | * For details please refer to Titan User Guide. | |
1734 | * | |
1735 | * See also: vxge_hw_fifo_txdl_next_completed(), vxge_hw_fifo_txdl_term_f{}. | |
1736 | */ | |
1737 | /** | |
1738 | * function vxge_hw_fifo_txdl_term_f - Terminate descriptor callback. | |
1739 | * @txdlh: First completed descriptor. | |
1740 | * @txdl_priv: Pointer to per txdl space allocated | |
1741 | * @state: One of the enum vxge_hw_txdl_state{} enumerated states. | |
1742 | * @userdata: Per-fifo user data (a.k.a. context) specified at | |
1743 | * fifo open time, via vxge_hw_vpath_open(). | |
1744 | * | |
1745 | * Terminate descriptor callback. Unless NULL is specified in the | |
1746 | * struct vxge_hw_fifo_attr{} structure passed to vxge_hw_vpath_open()), | |
1747 | * HW invokes the callback as part of closing fifo, prior to | |
1748 | * de-allocating the ring and associated data structures | |
1749 | * (including descriptors). | |
1750 | * driver should utilize the callback to (for instance) unmap | |
1751 | * and free DMA data buffers associated with the posted (state = | |
1752 | * VXGE_HW_TXDL_STATE_POSTED) descriptors, | |
1753 | * as well as other relevant cleanup functions. | |
1754 | * | |
1755 | * See also: struct vxge_hw_fifo_attr{} | |
1756 | */ | |
1757 | /** | |
1758 | * struct vxge_hw_fifo_attr - Fifo open "template". | |
1759 | * @callback: Fifo completion callback. HW invokes the callback when there | |
1760 | * are new completions on that fifo. In many implementations | |
1761 | * the @callback executes in the hw interrupt context. | |
1762 | * @txdl_term: Fifo's descriptor-terminate callback. If not NULL, | |
1763 | * HW invokes the callback when closing the corresponding fifo. | |
1764 | * See also vxge_hw_fifo_txdl_term_f{}. | |
1765 | * @userdata: User-defined "context" of _that_ fifo. Passed back to the | |
1766 | * user as one of the @callback, and @txdl_term arguments. | |
1767 | * @per_txdl_space: If specified (i.e., greater than zero): extra space | |
1768 | * reserved by HW per each transmit descriptor. Can be used to | |
1769 | * store, and retrieve on completion, information specific | |
1770 | * to the driver. | |
1771 | * | |
1772 | * Fifo open "template". User fills the structure with fifo | |
1773 | * attributes and passes it to vxge_hw_vpath_open(). | |
1774 | */ | |
1775 | struct vxge_hw_fifo_attr { | |
1776 | ||
1777 | enum vxge_hw_status (*callback)( | |
1778 | struct __vxge_hw_fifo *fifo_handle, | |
1779 | void *txdlh, | |
1780 | enum vxge_hw_fifo_tcode t_code, | |
1781 | void *userdata, | |
ff67df55 BL |
1782 | struct sk_buff ***skb_ptr, |
1783 | int nr_skb, int *more); | |
40a3a915 RV |
1784 | |
1785 | void (*txdl_term)( | |
1786 | void *txdlh, | |
1787 | enum vxge_hw_txdl_state state, | |
1788 | void *userdata); | |
1789 | ||
1790 | void *userdata; | |
1791 | u32 per_txdl_space; | |
1792 | }; | |
1793 | ||
1794 | /** | |
1795 | * struct vxge_hw_vpath_attr - Attributes of virtual path | |
1796 | * @vp_id: Identifier of Virtual Path | |
1797 | * @ring_attr: Attributes of ring for non-offload receive | |
1798 | * @fifo_attr: Attributes of fifo for non-offload transmit | |
1799 | * | |
1800 | * Attributes of virtual path. This structure is passed as parameter | |
1801 | * to the vxge_hw_vpath_open() routine to set the attributes of ring and fifo. | |
1802 | */ | |
1803 | struct vxge_hw_vpath_attr { | |
1804 | u32 vp_id; | |
1805 | struct vxge_hw_ring_attr ring_attr; | |
1806 | struct vxge_hw_fifo_attr fifo_attr; | |
1807 | }; | |
1808 | ||
40a3a915 RV |
1809 | enum vxge_hw_status __devinit vxge_hw_device_hw_info_get( |
1810 | void __iomem *bar0, | |
1811 | struct vxge_hw_device_hw_info *hw_info); | |
1812 | ||
40a3a915 RV |
1813 | enum vxge_hw_status __devinit vxge_hw_device_config_default_get( |
1814 | struct vxge_hw_device_config *device_config); | |
1815 | ||
1816 | /** | |
1817 | * vxge_hw_device_link_state_get - Get link state. | |
1818 | * @devh: HW device handle. | |
1819 | * | |
1820 | * Get link state. | |
1821 | * Returns: link state. | |
1822 | */ | |
1823 | static inline | |
1824 | enum vxge_hw_device_link_state vxge_hw_device_link_state_get( | |
1825 | struct __vxge_hw_device *devh) | |
1826 | { | |
1827 | return devh->link_state; | |
1828 | } | |
1829 | ||
1830 | void vxge_hw_device_terminate(struct __vxge_hw_device *devh); | |
1831 | ||
1832 | const u8 * | |
1833 | vxge_hw_device_serial_number_get(struct __vxge_hw_device *devh); | |
1834 | ||
1835 | u16 vxge_hw_device_link_width_get(struct __vxge_hw_device *devh); | |
1836 | ||
1837 | const u8 * | |
1838 | vxge_hw_device_product_name_get(struct __vxge_hw_device *devh); | |
1839 | ||
1840 | enum vxge_hw_status __devinit vxge_hw_device_initialize( | |
1841 | struct __vxge_hw_device **devh, | |
1842 | struct vxge_hw_device_attr *attr, | |
1843 | struct vxge_hw_device_config *device_config); | |
1844 | ||
1845 | enum vxge_hw_status vxge_hw_device_getpause_data( | |
1846 | struct __vxge_hw_device *devh, | |
1847 | u32 port, | |
1848 | u32 *tx, | |
1849 | u32 *rx); | |
1850 | ||
1851 | enum vxge_hw_status vxge_hw_device_setpause_data( | |
1852 | struct __vxge_hw_device *devh, | |
1853 | u32 port, | |
1854 | u32 tx, | |
1855 | u32 rx); | |
1856 | ||
1857 | static inline void *vxge_os_dma_malloc(struct pci_dev *pdev, | |
1858 | unsigned long size, | |
1859 | struct pci_dev **p_dmah, | |
1860 | struct pci_dev **p_dma_acch) | |
1861 | { | |
1862 | gfp_t flags; | |
1863 | void *vaddr; | |
1864 | unsigned long misaligned = 0; | |
47231f7f | 1865 | int realloc_flag = 0; |
40a3a915 RV |
1866 | *p_dma_acch = *p_dmah = NULL; |
1867 | ||
1868 | if (in_interrupt()) | |
1869 | flags = GFP_ATOMIC | GFP_DMA; | |
1870 | else | |
1871 | flags = GFP_KERNEL | GFP_DMA; | |
47231f7f | 1872 | realloc: |
40a3a915 RV |
1873 | vaddr = kmalloc((size), flags); |
1874 | if (vaddr == NULL) | |
1875 | return vaddr; | |
47231f7f | 1876 | misaligned = (unsigned long)VXGE_ALIGN((unsigned long)vaddr, |
40a3a915 | 1877 | VXGE_CACHE_LINE_SIZE); |
47231f7f SH |
1878 | if (realloc_flag) |
1879 | goto out; | |
1880 | ||
1881 | if (misaligned) { | |
1882 | /* misaligned, free current one and try allocating | |
1883 | * size + VXGE_CACHE_LINE_SIZE memory | |
1884 | */ | |
1885 | kfree((void *) vaddr); | |
1886 | size += VXGE_CACHE_LINE_SIZE; | |
1887 | realloc_flag = 1; | |
1888 | goto realloc; | |
1889 | } | |
1890 | out: | |
40a3a915 RV |
1891 | *(unsigned long *)p_dma_acch = misaligned; |
1892 | vaddr = (void *)((u8 *)vaddr + misaligned); | |
1893 | return vaddr; | |
1894 | } | |
1895 | ||
40a3a915 RV |
1896 | /* |
1897 | * __vxge_hw_mempool_item_priv - will return pointer on per item private space | |
1898 | */ | |
1899 | static inline void* | |
1900 | __vxge_hw_mempool_item_priv( | |
1901 | struct vxge_hw_mempool *mempool, | |
1902 | u32 memblock_idx, | |
1903 | void *item, | |
1904 | u32 *memblock_item_idx) | |
1905 | { | |
1906 | ptrdiff_t offset; | |
1907 | void *memblock = mempool->memblocks_arr[memblock_idx]; | |
1908 | ||
1909 | ||
1910 | offset = (u32)((u8 *)item - (u8 *)memblock); | |
1911 | vxge_assert(offset >= 0 && (u32)offset < mempool->memblock_size); | |
1912 | ||
1913 | (*memblock_item_idx) = (u32) offset / mempool->item_size; | |
1914 | vxge_assert((*memblock_item_idx) < mempool->items_per_memblock); | |
1915 | ||
1916 | return (u8 *)mempool->memblocks_priv_arr[memblock_idx] + | |
1917 | (*memblock_item_idx) * mempool->items_priv_size; | |
1918 | } | |
1919 | ||
40a3a915 RV |
1920 | /* |
1921 | * __vxge_hw_fifo_txdl_priv - Return the max fragments allocated | |
1922 | * for the fifo. | |
1923 | * @fifo: Fifo | |
1924 | * @txdp: Poniter to a TxD | |
1925 | */ | |
1926 | static inline struct __vxge_hw_fifo_txdl_priv * | |
1927 | __vxge_hw_fifo_txdl_priv( | |
1928 | struct __vxge_hw_fifo *fifo, | |
1929 | struct vxge_hw_fifo_txd *txdp) | |
1930 | { | |
1931 | return (struct __vxge_hw_fifo_txdl_priv *) | |
1932 | (((char *)((ulong)txdp->host_control)) + | |
1933 | fifo->per_txdl_space); | |
1934 | } | |
1935 | ||
1936 | enum vxge_hw_status vxge_hw_vpath_open( | |
1937 | struct __vxge_hw_device *devh, | |
1938 | struct vxge_hw_vpath_attr *attr, | |
1939 | struct __vxge_hw_vpath_handle **vpath_handle); | |
1940 | ||
40a3a915 RV |
1941 | enum vxge_hw_status vxge_hw_vpath_close( |
1942 | struct __vxge_hw_vpath_handle *vpath_handle); | |
1943 | ||
1944 | enum vxge_hw_status | |
1945 | vxge_hw_vpath_reset( | |
1946 | struct __vxge_hw_vpath_handle *vpath_handle); | |
1947 | ||
1948 | enum vxge_hw_status | |
1949 | vxge_hw_vpath_recover_from_reset( | |
1950 | struct __vxge_hw_vpath_handle *vpath_handle); | |
1951 | ||
1952 | void | |
1953 | vxge_hw_vpath_enable(struct __vxge_hw_vpath_handle *vp); | |
1954 | ||
1955 | enum vxge_hw_status | |
1956 | vxge_hw_vpath_check_leak(struct __vxge_hw_ring *ringh); | |
1957 | ||
1958 | enum vxge_hw_status vxge_hw_vpath_mtu_set( | |
1959 | struct __vxge_hw_vpath_handle *vpath_handle, | |
1960 | u32 new_mtu); | |
1961 | ||
40a3a915 RV |
1962 | void |
1963 | vxge_hw_vpath_rx_doorbell_init(struct __vxge_hw_vpath_handle *vp); | |
1964 | ||
40a3a915 RV |
1965 | |
1966 | #ifndef readq | |
1967 | static inline u64 readq(void __iomem *addr) | |
1968 | { | |
1969 | u64 ret = 0; | |
1970 | ret = readl(addr + 4); | |
1971 | ret <<= 32; | |
1972 | ret |= readl(addr); | |
1973 | ||
1974 | return ret; | |
1975 | } | |
1976 | #endif | |
1977 | ||
1978 | #ifndef writeq | |
1979 | static inline void writeq(u64 val, void __iomem *addr) | |
1980 | { | |
1981 | writel((u32) (val), addr); | |
1982 | writel((u32) (val >> 32), (addr + 4)); | |
1983 | } | |
1984 | #endif | |
1985 | ||
1986 | static inline void __vxge_hw_pio_mem_write32_upper(u32 val, void __iomem *addr) | |
1987 | { | |
1988 | writel(val, addr + 4); | |
1989 | } | |
1990 | ||
1991 | static inline void __vxge_hw_pio_mem_write32_lower(u32 val, void __iomem *addr) | |
1992 | { | |
1993 | writel(val, addr); | |
1994 | } | |
1995 | ||
40a3a915 RV |
1996 | enum vxge_hw_status |
1997 | vxge_hw_device_flick_link_led(struct __vxge_hw_device *devh, u64 on_off); | |
1998 | ||
fa41fd10 SH |
1999 | enum vxge_hw_status |
2000 | vxge_hw_vpath_strip_fcs_check(struct __vxge_hw_device *hldev, u64 vpath_mask); | |
42821a5b | 2001 | |
40a3a915 RV |
2002 | /** |
2003 | * vxge_debug | |
2004 | * @level: level of debug verbosity. | |
2005 | * @mask: mask for the debug | |
2006 | * @buf: Circular buffer for tracing | |
2007 | * @fmt: printf like format string | |
2008 | * | |
2009 | * Provides logging facilities. Can be customized on per-module | |
2010 | * basis or/and with debug levels. Input parameters, except | |
2011 | * module and level, are the same as posix printf. This function | |
2012 | * may be compiled out if DEBUG macro was never defined. | |
2013 | * See also: enum vxge_debug_level{}. | |
2014 | */ | |
2015 | ||
2016 | #define vxge_trace_aux(level, mask, fmt, ...) \ | |
2017 | {\ | |
2018 | vxge_os_vaprintf(level, mask, fmt, __VA_ARGS__);\ | |
2019 | } | |
2020 | ||
2021 | #define vxge_debug(module, level, mask, fmt, ...) { \ | |
2022 | if ((level >= VXGE_TRACE && ((module & VXGE_DEBUG_TRACE_MASK) == module)) || \ | |
2023 | (level >= VXGE_ERR && ((module & VXGE_DEBUG_ERR_MASK) == module))) {\ | |
2024 | if ((mask & VXGE_DEBUG_MASK) == mask)\ | |
2025 | vxge_trace_aux(level, mask, fmt, __VA_ARGS__); \ | |
2026 | } \ | |
2027 | } | |
2028 | ||
2029 | #if (VXGE_COMPONENT_LL & VXGE_DEBUG_MODULE_MASK) | |
2030 | #define vxge_debug_ll(level, mask, fmt, ...) \ | |
2031 | {\ | |
2032 | vxge_debug(VXGE_COMPONENT_LL, level, mask, fmt, __VA_ARGS__);\ | |
2033 | } | |
2034 | ||
2035 | #else | |
2036 | #define vxge_debug_ll(level, mask, fmt, ...) | |
2037 | #endif | |
2038 | ||
2039 | enum vxge_hw_status vxge_hw_vpath_rts_rth_itable_set( | |
2040 | struct __vxge_hw_vpath_handle **vpath_handles, | |
2041 | u32 vpath_count, | |
2042 | u8 *mtable, | |
2043 | u8 *itable, | |
2044 | u32 itable_size); | |
2045 | ||
2046 | enum vxge_hw_status vxge_hw_vpath_rts_rth_set( | |
2047 | struct __vxge_hw_vpath_handle *vpath_handle, | |
2048 | enum vxge_hw_rth_algoritms algorithm, | |
2049 | struct vxge_hw_rth_hash_types *hash_type, | |
2050 | u16 bucket_size); | |
2051 | ||
cb27ec60 SH |
2052 | enum vxge_hw_status |
2053 | __vxge_hw_device_is_privilaged(u32 host_type, u32 func_id); | |
40a3a915 | 2054 | #endif |