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11324132 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 | * | |
10 | * vxge-traffic.c: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O | |
11 | * Virtualized Server Adapter. | |
12 | * Copyright(c) 2002-2009 Neterion Inc. | |
13 | ******************************************************************************/ | |
14 | #include <linux/etherdevice.h> | |
15 | ||
16 | #include "vxge-traffic.h" | |
17 | #include "vxge-config.h" | |
18 | #include "vxge-main.h" | |
19 | ||
20 | /* | |
21 | * vxge_hw_vpath_intr_enable - Enable vpath interrupts. | |
22 | * @vp: Virtual Path handle. | |
23 | * | |
24 | * Enable vpath interrupts. The function is to be executed the last in | |
25 | * vpath initialization sequence. | |
26 | * | |
27 | * See also: vxge_hw_vpath_intr_disable() | |
28 | */ | |
29 | enum vxge_hw_status vxge_hw_vpath_intr_enable(struct __vxge_hw_vpath_handle *vp) | |
30 | { | |
31 | u64 val64; | |
32 | ||
33 | struct __vxge_hw_virtualpath *vpath; | |
34 | struct vxge_hw_vpath_reg __iomem *vp_reg; | |
35 | enum vxge_hw_status status = VXGE_HW_OK; | |
36 | if (vp == NULL) { | |
37 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
38 | goto exit; | |
39 | } | |
40 | ||
41 | vpath = vp->vpath; | |
42 | ||
43 | if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { | |
44 | status = VXGE_HW_ERR_VPATH_NOT_OPEN; | |
45 | goto exit; | |
46 | } | |
47 | ||
48 | vp_reg = vpath->vp_reg; | |
49 | ||
50 | writeq(VXGE_HW_INTR_MASK_ALL, &vp_reg->kdfcctl_errors_reg); | |
51 | ||
52 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
53 | &vp_reg->general_errors_reg); | |
54 | ||
55 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
56 | &vp_reg->pci_config_errors_reg); | |
57 | ||
58 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
59 | &vp_reg->mrpcim_to_vpath_alarm_reg); | |
60 | ||
61 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
62 | &vp_reg->srpcim_to_vpath_alarm_reg); | |
63 | ||
64 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
65 | &vp_reg->vpath_ppif_int_status); | |
66 | ||
67 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
68 | &vp_reg->srpcim_msg_to_vpath_reg); | |
69 | ||
70 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
71 | &vp_reg->vpath_pcipif_int_status); | |
72 | ||
73 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
74 | &vp_reg->prc_alarm_reg); | |
75 | ||
76 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
77 | &vp_reg->wrdma_alarm_status); | |
78 | ||
79 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
80 | &vp_reg->asic_ntwk_vp_err_reg); | |
81 | ||
82 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
83 | &vp_reg->xgmac_vp_int_status); | |
84 | ||
85 | val64 = readq(&vp_reg->vpath_general_int_status); | |
86 | ||
87 | /* Mask unwanted interrupts */ | |
88 | ||
89 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
90 | &vp_reg->vpath_pcipif_int_mask); | |
91 | ||
92 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
93 | &vp_reg->srpcim_msg_to_vpath_mask); | |
94 | ||
95 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
96 | &vp_reg->srpcim_to_vpath_alarm_mask); | |
97 | ||
98 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
99 | &vp_reg->mrpcim_to_vpath_alarm_mask); | |
100 | ||
101 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
102 | &vp_reg->pci_config_errors_mask); | |
103 | ||
104 | /* Unmask the individual interrupts */ | |
105 | ||
106 | writeq((u32)vxge_bVALn((VXGE_HW_GENERAL_ERRORS_REG_DBLGEN_FIFO1_OVRFLOW| | |
107 | VXGE_HW_GENERAL_ERRORS_REG_DBLGEN_FIFO2_OVRFLOW| | |
108 | VXGE_HW_GENERAL_ERRORS_REG_STATSB_DROP_TIMEOUT_REQ| | |
109 | VXGE_HW_GENERAL_ERRORS_REG_STATSB_PIF_CHAIN_ERR), 0, 32), | |
110 | &vp_reg->general_errors_mask); | |
111 | ||
112 | __vxge_hw_pio_mem_write32_upper( | |
113 | (u32)vxge_bVALn((VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO1_OVRWR| | |
114 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO2_OVRWR| | |
115 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO1_POISON| | |
116 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO2_POISON| | |
117 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO1_DMA_ERR| | |
d77dd8d2 | 118 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO2_DMA_ERR), 0, 32), |
11324132 RV |
119 | &vp_reg->kdfcctl_errors_mask); |
120 | ||
121 | __vxge_hw_pio_mem_write32_upper(0, &vp_reg->vpath_ppif_int_mask); | |
122 | ||
123 | __vxge_hw_pio_mem_write32_upper( | |
124 | (u32)vxge_bVALn(VXGE_HW_PRC_ALARM_REG_PRC_RING_BUMP, 0, 32), | |
125 | &vp_reg->prc_alarm_mask); | |
126 | ||
127 | __vxge_hw_pio_mem_write32_upper(0, &vp_reg->wrdma_alarm_mask); | |
128 | __vxge_hw_pio_mem_write32_upper(0, &vp_reg->xgmac_vp_int_mask); | |
129 | ||
130 | if (vpath->hldev->first_vp_id != vpath->vp_id) | |
131 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
132 | &vp_reg->asic_ntwk_vp_err_mask); | |
133 | else | |
134 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(( | |
135 | VXGE_HW_ASIC_NTWK_VP_ERR_REG_XMACJ_NTWK_REAFFIRMED_FAULT | | |
136 | VXGE_HW_ASIC_NTWK_VP_ERR_REG_XMACJ_NTWK_REAFFIRMED_OK), 0, 32), | |
137 | &vp_reg->asic_ntwk_vp_err_mask); | |
138 | ||
139 | __vxge_hw_pio_mem_write32_upper(0, | |
140 | &vp_reg->vpath_general_int_mask); | |
141 | exit: | |
142 | return status; | |
143 | ||
144 | } | |
145 | ||
146 | /* | |
147 | * vxge_hw_vpath_intr_disable - Disable vpath interrupts. | |
148 | * @vp: Virtual Path handle. | |
149 | * | |
150 | * Disable vpath interrupts. The function is to be executed the last in | |
151 | * vpath initialization sequence. | |
152 | * | |
153 | * See also: vxge_hw_vpath_intr_enable() | |
154 | */ | |
155 | enum vxge_hw_status vxge_hw_vpath_intr_disable( | |
156 | struct __vxge_hw_vpath_handle *vp) | |
157 | { | |
158 | u64 val64; | |
159 | ||
160 | struct __vxge_hw_virtualpath *vpath; | |
161 | enum vxge_hw_status status = VXGE_HW_OK; | |
162 | struct vxge_hw_vpath_reg __iomem *vp_reg; | |
163 | if (vp == NULL) { | |
164 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
165 | goto exit; | |
166 | } | |
167 | ||
168 | vpath = vp->vpath; | |
169 | ||
170 | if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { | |
171 | status = VXGE_HW_ERR_VPATH_NOT_OPEN; | |
172 | goto exit; | |
173 | } | |
174 | vp_reg = vpath->vp_reg; | |
175 | ||
176 | __vxge_hw_pio_mem_write32_upper( | |
177 | (u32)VXGE_HW_INTR_MASK_ALL, | |
178 | &vp_reg->vpath_general_int_mask); | |
179 | ||
180 | val64 = VXGE_HW_TIM_CLR_INT_EN_VP(1 << (16 - vpath->vp_id)); | |
181 | ||
182 | writeq(VXGE_HW_INTR_MASK_ALL, &vp_reg->kdfcctl_errors_mask); | |
183 | ||
184 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
185 | &vp_reg->general_errors_mask); | |
186 | ||
187 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
188 | &vp_reg->pci_config_errors_mask); | |
189 | ||
190 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
191 | &vp_reg->mrpcim_to_vpath_alarm_mask); | |
192 | ||
193 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
194 | &vp_reg->srpcim_to_vpath_alarm_mask); | |
195 | ||
196 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
197 | &vp_reg->vpath_ppif_int_mask); | |
198 | ||
199 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
200 | &vp_reg->srpcim_msg_to_vpath_mask); | |
201 | ||
202 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
203 | &vp_reg->vpath_pcipif_int_mask); | |
204 | ||
205 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
206 | &vp_reg->wrdma_alarm_mask); | |
207 | ||
208 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
209 | &vp_reg->prc_alarm_mask); | |
210 | ||
211 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
212 | &vp_reg->xgmac_vp_int_mask); | |
213 | ||
214 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, | |
215 | &vp_reg->asic_ntwk_vp_err_mask); | |
216 | ||
217 | exit: | |
218 | return status; | |
219 | } | |
220 | ||
221 | /** | |
222 | * vxge_hw_channel_msix_mask - Mask MSIX Vector. | |
223 | * @channeh: Channel for rx or tx handle | |
224 | * @msix_id: MSIX ID | |
225 | * | |
226 | * The function masks the msix interrupt for the given msix_id | |
227 | * | |
228 | * Returns: 0 | |
229 | */ | |
230 | void vxge_hw_channel_msix_mask(struct __vxge_hw_channel *channel, int msix_id) | |
231 | { | |
232 | ||
233 | __vxge_hw_pio_mem_write32_upper( | |
234 | (u32)vxge_bVALn(vxge_mBIT(channel->first_vp_id+(msix_id/4)), | |
235 | 0, 32), | |
236 | &channel->common_reg->set_msix_mask_vect[msix_id%4]); | |
237 | ||
238 | return; | |
239 | } | |
240 | ||
241 | /** | |
242 | * vxge_hw_channel_msix_unmask - Unmask the MSIX Vector. | |
243 | * @channeh: Channel for rx or tx handle | |
244 | * @msix_id: MSI ID | |
245 | * | |
246 | * The function unmasks the msix interrupt for the given msix_id | |
247 | * | |
248 | * Returns: 0 | |
249 | */ | |
250 | void | |
251 | vxge_hw_channel_msix_unmask(struct __vxge_hw_channel *channel, int msix_id) | |
252 | { | |
253 | ||
254 | __vxge_hw_pio_mem_write32_upper( | |
255 | (u32)vxge_bVALn(vxge_mBIT(channel->first_vp_id+(msix_id/4)), | |
256 | 0, 32), | |
257 | &channel->common_reg->clear_msix_mask_vect[msix_id%4]); | |
258 | ||
259 | return; | |
260 | } | |
261 | ||
262 | /** | |
263 | * vxge_hw_device_set_intr_type - Updates the configuration | |
264 | * with new interrupt type. | |
265 | * @hldev: HW device handle. | |
266 | * @intr_mode: New interrupt type | |
267 | */ | |
268 | u32 vxge_hw_device_set_intr_type(struct __vxge_hw_device *hldev, u32 intr_mode) | |
269 | { | |
270 | ||
271 | if ((intr_mode != VXGE_HW_INTR_MODE_IRQLINE) && | |
272 | (intr_mode != VXGE_HW_INTR_MODE_MSIX) && | |
273 | (intr_mode != VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) && | |
274 | (intr_mode != VXGE_HW_INTR_MODE_DEF)) | |
275 | intr_mode = VXGE_HW_INTR_MODE_IRQLINE; | |
276 | ||
277 | hldev->config.intr_mode = intr_mode; | |
278 | return intr_mode; | |
279 | } | |
280 | ||
281 | /** | |
282 | * vxge_hw_device_intr_enable - Enable interrupts. | |
283 | * @hldev: HW device handle. | |
284 | * @op: One of the enum vxge_hw_device_intr enumerated values specifying | |
285 | * the type(s) of interrupts to enable. | |
286 | * | |
287 | * Enable Titan interrupts. The function is to be executed the last in | |
288 | * Titan initialization sequence. | |
289 | * | |
290 | * See also: vxge_hw_device_intr_disable() | |
291 | */ | |
292 | void vxge_hw_device_intr_enable(struct __vxge_hw_device *hldev) | |
293 | { | |
294 | u32 i; | |
295 | u64 val64; | |
296 | u32 val32; | |
297 | ||
298 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { | |
299 | ||
300 | if (!(hldev->vpaths_deployed & vxge_mBIT(i))) | |
301 | continue; | |
302 | ||
303 | vxge_hw_vpath_intr_enable( | |
304 | VXGE_HW_VIRTUAL_PATH_HANDLE(&hldev->virtual_paths[i])); | |
305 | } | |
306 | ||
307 | if (hldev->config.intr_mode == VXGE_HW_INTR_MODE_IRQLINE) { | |
308 | val64 = hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_TX] | | |
309 | hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_RX]; | |
310 | ||
311 | if (val64 != 0) { | |
312 | writeq(val64, &hldev->common_reg->tim_int_status0); | |
313 | ||
314 | writeq(~val64, &hldev->common_reg->tim_int_mask0); | |
315 | } | |
316 | ||
317 | val32 = hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_TX] | | |
318 | hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_RX]; | |
319 | ||
320 | if (val32 != 0) { | |
321 | __vxge_hw_pio_mem_write32_upper(val32, | |
322 | &hldev->common_reg->tim_int_status1); | |
323 | ||
324 | __vxge_hw_pio_mem_write32_upper(~val32, | |
325 | &hldev->common_reg->tim_int_mask1); | |
326 | } | |
327 | } | |
328 | ||
329 | val64 = readq(&hldev->common_reg->titan_general_int_status); | |
330 | ||
331 | vxge_hw_device_unmask_all(hldev); | |
332 | ||
333 | return; | |
334 | } | |
335 | ||
336 | /** | |
337 | * vxge_hw_device_intr_disable - Disable Titan interrupts. | |
338 | * @hldev: HW device handle. | |
339 | * @op: One of the enum vxge_hw_device_intr enumerated values specifying | |
340 | * the type(s) of interrupts to disable. | |
341 | * | |
342 | * Disable Titan interrupts. | |
343 | * | |
344 | * See also: vxge_hw_device_intr_enable() | |
345 | */ | |
346 | void vxge_hw_device_intr_disable(struct __vxge_hw_device *hldev) | |
347 | { | |
348 | u32 i; | |
349 | ||
350 | vxge_hw_device_mask_all(hldev); | |
351 | ||
352 | /* mask all the tim interrupts */ | |
353 | writeq(VXGE_HW_INTR_MASK_ALL, &hldev->common_reg->tim_int_mask0); | |
354 | __vxge_hw_pio_mem_write32_upper(VXGE_HW_DEFAULT_32, | |
355 | &hldev->common_reg->tim_int_mask1); | |
356 | ||
357 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { | |
358 | ||
359 | if (!(hldev->vpaths_deployed & vxge_mBIT(i))) | |
360 | continue; | |
361 | ||
362 | vxge_hw_vpath_intr_disable( | |
363 | VXGE_HW_VIRTUAL_PATH_HANDLE(&hldev->virtual_paths[i])); | |
364 | } | |
365 | ||
366 | return; | |
367 | } | |
368 | ||
369 | /** | |
370 | * vxge_hw_device_mask_all - Mask all device interrupts. | |
371 | * @hldev: HW device handle. | |
372 | * | |
373 | * Mask all device interrupts. | |
374 | * | |
375 | * See also: vxge_hw_device_unmask_all() | |
376 | */ | |
377 | void vxge_hw_device_mask_all(struct __vxge_hw_device *hldev) | |
378 | { | |
379 | u64 val64; | |
380 | ||
381 | val64 = VXGE_HW_TITAN_MASK_ALL_INT_ALARM | | |
382 | VXGE_HW_TITAN_MASK_ALL_INT_TRAFFIC; | |
383 | ||
384 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32), | |
385 | &hldev->common_reg->titan_mask_all_int); | |
386 | ||
387 | return; | |
388 | } | |
389 | ||
390 | /** | |
391 | * vxge_hw_device_unmask_all - Unmask all device interrupts. | |
392 | * @hldev: HW device handle. | |
393 | * | |
394 | * Unmask all device interrupts. | |
395 | * | |
396 | * See also: vxge_hw_device_mask_all() | |
397 | */ | |
398 | void vxge_hw_device_unmask_all(struct __vxge_hw_device *hldev) | |
399 | { | |
400 | u64 val64 = 0; | |
401 | ||
402 | if (hldev->config.intr_mode == VXGE_HW_INTR_MODE_IRQLINE) | |
403 | val64 = VXGE_HW_TITAN_MASK_ALL_INT_TRAFFIC; | |
404 | ||
405 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32), | |
406 | &hldev->common_reg->titan_mask_all_int); | |
407 | ||
408 | return; | |
409 | } | |
410 | ||
411 | /** | |
412 | * vxge_hw_device_flush_io - Flush io writes. | |
413 | * @hldev: HW device handle. | |
414 | * | |
415 | * The function performs a read operation to flush io writes. | |
416 | * | |
417 | * Returns: void | |
418 | */ | |
419 | void vxge_hw_device_flush_io(struct __vxge_hw_device *hldev) | |
420 | { | |
421 | u32 val32; | |
422 | ||
423 | val32 = readl(&hldev->common_reg->titan_general_int_status); | |
424 | } | |
425 | ||
426 | /** | |
427 | * vxge_hw_device_begin_irq - Begin IRQ processing. | |
428 | * @hldev: HW device handle. | |
429 | * @skip_alarms: Do not clear the alarms | |
430 | * @reason: "Reason" for the interrupt, the value of Titan's | |
431 | * general_int_status register. | |
432 | * | |
433 | * The function performs two actions, It first checks whether (shared IRQ) the | |
434 | * interrupt was raised by the device. Next, it masks the device interrupts. | |
435 | * | |
436 | * Note: | |
437 | * vxge_hw_device_begin_irq() does not flush MMIO writes through the | |
438 | * bridge. Therefore, two back-to-back interrupts are potentially possible. | |
439 | * | |
440 | * Returns: 0, if the interrupt is not "ours" (note that in this case the | |
441 | * device remain enabled). | |
442 | * Otherwise, vxge_hw_device_begin_irq() returns 64bit general adapter | |
443 | * status. | |
444 | */ | |
445 | enum vxge_hw_status vxge_hw_device_begin_irq(struct __vxge_hw_device *hldev, | |
446 | u32 skip_alarms, u64 *reason) | |
447 | { | |
448 | u32 i; | |
449 | u64 val64; | |
450 | u64 adapter_status; | |
451 | u64 vpath_mask; | |
452 | enum vxge_hw_status ret = VXGE_HW_OK; | |
453 | ||
454 | val64 = readq(&hldev->common_reg->titan_general_int_status); | |
455 | ||
456 | if (unlikely(!val64)) { | |
457 | /* not Titan interrupt */ | |
458 | *reason = 0; | |
459 | ret = VXGE_HW_ERR_WRONG_IRQ; | |
460 | goto exit; | |
461 | } | |
462 | ||
463 | if (unlikely(val64 == VXGE_HW_ALL_FOXES)) { | |
464 | ||
465 | adapter_status = readq(&hldev->common_reg->adapter_status); | |
466 | ||
467 | if (adapter_status == VXGE_HW_ALL_FOXES) { | |
468 | ||
469 | __vxge_hw_device_handle_error(hldev, | |
470 | NULL_VPID, VXGE_HW_EVENT_SLOT_FREEZE); | |
471 | *reason = 0; | |
472 | ret = VXGE_HW_ERR_SLOT_FREEZE; | |
473 | goto exit; | |
474 | } | |
475 | } | |
476 | ||
477 | hldev->stats.sw_dev_info_stats.total_intr_cnt++; | |
478 | ||
479 | *reason = val64; | |
480 | ||
481 | vpath_mask = hldev->vpaths_deployed >> | |
482 | (64 - VXGE_HW_MAX_VIRTUAL_PATHS); | |
483 | ||
484 | if (val64 & | |
485 | VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(vpath_mask)) { | |
486 | hldev->stats.sw_dev_info_stats.traffic_intr_cnt++; | |
487 | ||
488 | return VXGE_HW_OK; | |
489 | } | |
490 | ||
491 | hldev->stats.sw_dev_info_stats.not_traffic_intr_cnt++; | |
492 | ||
493 | if (unlikely(val64 & | |
494 | VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_ALARM_INT)) { | |
495 | ||
496 | enum vxge_hw_status error_level = VXGE_HW_OK; | |
497 | ||
498 | hldev->stats.sw_dev_err_stats.vpath_alarms++; | |
499 | ||
500 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { | |
501 | ||
502 | if (!(hldev->vpaths_deployed & vxge_mBIT(i))) | |
503 | continue; | |
504 | ||
505 | ret = __vxge_hw_vpath_alarm_process( | |
506 | &hldev->virtual_paths[i], skip_alarms); | |
507 | ||
a4fe91ee | 508 | error_level = VXGE_HW_SET_LEVEL(ret, error_level); |
11324132 RV |
509 | |
510 | if (unlikely((ret == VXGE_HW_ERR_CRITICAL) || | |
511 | (ret == VXGE_HW_ERR_SLOT_FREEZE))) | |
512 | break; | |
513 | } | |
514 | ||
515 | ret = error_level; | |
516 | } | |
517 | exit: | |
518 | return ret; | |
519 | } | |
520 | ||
521 | /* | |
522 | * __vxge_hw_device_handle_link_up_ind | |
523 | * @hldev: HW device handle. | |
524 | * | |
525 | * Link up indication handler. The function is invoked by HW when | |
526 | * Titan indicates that the link is up for programmable amount of time. | |
527 | */ | |
528 | enum vxge_hw_status | |
529 | __vxge_hw_device_handle_link_up_ind(struct __vxge_hw_device *hldev) | |
530 | { | |
531 | /* | |
532 | * If the previous link state is not down, return. | |
533 | */ | |
534 | if (hldev->link_state == VXGE_HW_LINK_UP) | |
535 | goto exit; | |
536 | ||
537 | hldev->link_state = VXGE_HW_LINK_UP; | |
538 | ||
539 | /* notify driver */ | |
540 | if (hldev->uld_callbacks.link_up) | |
541 | hldev->uld_callbacks.link_up(hldev); | |
542 | exit: | |
543 | return VXGE_HW_OK; | |
544 | } | |
545 | ||
546 | /* | |
547 | * __vxge_hw_device_handle_link_down_ind | |
548 | * @hldev: HW device handle. | |
549 | * | |
550 | * Link down indication handler. The function is invoked by HW when | |
551 | * Titan indicates that the link is down. | |
552 | */ | |
553 | enum vxge_hw_status | |
554 | __vxge_hw_device_handle_link_down_ind(struct __vxge_hw_device *hldev) | |
555 | { | |
556 | /* | |
557 | * If the previous link state is not down, return. | |
558 | */ | |
559 | if (hldev->link_state == VXGE_HW_LINK_DOWN) | |
560 | goto exit; | |
561 | ||
562 | hldev->link_state = VXGE_HW_LINK_DOWN; | |
563 | ||
564 | /* notify driver */ | |
565 | if (hldev->uld_callbacks.link_down) | |
566 | hldev->uld_callbacks.link_down(hldev); | |
567 | exit: | |
568 | return VXGE_HW_OK; | |
569 | } | |
570 | ||
571 | /** | |
572 | * __vxge_hw_device_handle_error - Handle error | |
573 | * @hldev: HW device | |
574 | * @vp_id: Vpath Id | |
575 | * @type: Error type. Please see enum vxge_hw_event{} | |
576 | * | |
577 | * Handle error. | |
578 | */ | |
579 | enum vxge_hw_status | |
580 | __vxge_hw_device_handle_error( | |
581 | struct __vxge_hw_device *hldev, | |
582 | u32 vp_id, | |
583 | enum vxge_hw_event type) | |
584 | { | |
585 | switch (type) { | |
586 | case VXGE_HW_EVENT_UNKNOWN: | |
587 | break; | |
588 | case VXGE_HW_EVENT_RESET_START: | |
589 | case VXGE_HW_EVENT_RESET_COMPLETE: | |
590 | case VXGE_HW_EVENT_LINK_DOWN: | |
591 | case VXGE_HW_EVENT_LINK_UP: | |
592 | goto out; | |
593 | case VXGE_HW_EVENT_ALARM_CLEARED: | |
594 | goto out; | |
595 | case VXGE_HW_EVENT_ECCERR: | |
596 | case VXGE_HW_EVENT_MRPCIM_ECCERR: | |
597 | goto out; | |
598 | case VXGE_HW_EVENT_FIFO_ERR: | |
599 | case VXGE_HW_EVENT_VPATH_ERR: | |
600 | case VXGE_HW_EVENT_CRITICAL_ERR: | |
601 | case VXGE_HW_EVENT_SERR: | |
602 | break; | |
603 | case VXGE_HW_EVENT_SRPCIM_SERR: | |
604 | case VXGE_HW_EVENT_MRPCIM_SERR: | |
605 | goto out; | |
606 | case VXGE_HW_EVENT_SLOT_FREEZE: | |
607 | break; | |
608 | default: | |
609 | vxge_assert(0); | |
610 | goto out; | |
611 | } | |
612 | ||
613 | /* notify driver */ | |
614 | if (hldev->uld_callbacks.crit_err) | |
615 | hldev->uld_callbacks.crit_err( | |
616 | (struct __vxge_hw_device *)hldev, | |
617 | type, vp_id); | |
618 | out: | |
619 | ||
620 | return VXGE_HW_OK; | |
621 | } | |
622 | ||
623 | /** | |
624 | * vxge_hw_device_clear_tx_rx - Acknowledge (that is, clear) the | |
625 | * condition that has caused the Tx and RX interrupt. | |
626 | * @hldev: HW device. | |
627 | * | |
628 | * Acknowledge (that is, clear) the condition that has caused | |
629 | * the Tx and Rx interrupt. | |
630 | * See also: vxge_hw_device_begin_irq(), | |
631 | * vxge_hw_device_mask_tx_rx(), vxge_hw_device_unmask_tx_rx(). | |
632 | */ | |
633 | void vxge_hw_device_clear_tx_rx(struct __vxge_hw_device *hldev) | |
634 | { | |
635 | ||
636 | if ((hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_TX] != 0) || | |
637 | (hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_RX] != 0)) { | |
638 | writeq((hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_TX] | | |
639 | hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_RX]), | |
640 | &hldev->common_reg->tim_int_status0); | |
641 | } | |
642 | ||
643 | if ((hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_TX] != 0) || | |
644 | (hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_RX] != 0)) { | |
645 | __vxge_hw_pio_mem_write32_upper( | |
646 | (hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_TX] | | |
647 | hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_RX]), | |
648 | &hldev->common_reg->tim_int_status1); | |
649 | } | |
650 | ||
651 | return; | |
652 | } | |
653 | ||
654 | /* | |
655 | * vxge_hw_channel_dtr_alloc - Allocate a dtr from the channel | |
656 | * @channel: Channel | |
657 | * @dtrh: Buffer to return the DTR pointer | |
658 | * | |
659 | * Allocates a dtr from the reserve array. If the reserve array is empty, | |
660 | * it swaps the reserve and free arrays. | |
661 | * | |
662 | */ | |
663 | enum vxge_hw_status | |
664 | vxge_hw_channel_dtr_alloc(struct __vxge_hw_channel *channel, void **dtrh) | |
665 | { | |
666 | void **tmp_arr; | |
667 | ||
668 | if (channel->reserve_ptr - channel->reserve_top > 0) { | |
669 | _alloc_after_swap: | |
670 | *dtrh = channel->reserve_arr[--channel->reserve_ptr]; | |
671 | ||
672 | return VXGE_HW_OK; | |
673 | } | |
674 | ||
675 | /* switch between empty and full arrays */ | |
676 | ||
677 | /* the idea behind such a design is that by having free and reserved | |
678 | * arrays separated we basically separated irq and non-irq parts. | |
679 | * i.e. no additional lock need to be done when we free a resource */ | |
680 | ||
681 | if (channel->length - channel->free_ptr > 0) { | |
682 | ||
683 | tmp_arr = channel->reserve_arr; | |
684 | channel->reserve_arr = channel->free_arr; | |
685 | channel->free_arr = tmp_arr; | |
686 | channel->reserve_ptr = channel->length; | |
687 | channel->reserve_top = channel->free_ptr; | |
688 | channel->free_ptr = channel->length; | |
689 | ||
690 | channel->stats->reserve_free_swaps_cnt++; | |
691 | ||
692 | goto _alloc_after_swap; | |
693 | } | |
694 | ||
695 | channel->stats->full_cnt++; | |
696 | ||
697 | *dtrh = NULL; | |
698 | return VXGE_HW_INF_OUT_OF_DESCRIPTORS; | |
699 | } | |
700 | ||
701 | /* | |
702 | * vxge_hw_channel_dtr_post - Post a dtr to the channel | |
703 | * @channelh: Channel | |
704 | * @dtrh: DTR pointer | |
705 | * | |
706 | * Posts a dtr to work array. | |
707 | * | |
708 | */ | |
709 | void vxge_hw_channel_dtr_post(struct __vxge_hw_channel *channel, void *dtrh) | |
710 | { | |
711 | vxge_assert(channel->work_arr[channel->post_index] == NULL); | |
712 | ||
713 | channel->work_arr[channel->post_index++] = dtrh; | |
714 | ||
715 | /* wrap-around */ | |
716 | if (channel->post_index == channel->length) | |
717 | channel->post_index = 0; | |
718 | } | |
719 | ||
720 | /* | |
721 | * vxge_hw_channel_dtr_try_complete - Returns next completed dtr | |
722 | * @channel: Channel | |
723 | * @dtr: Buffer to return the next completed DTR pointer | |
724 | * | |
725 | * Returns the next completed dtr with out removing it from work array | |
726 | * | |
727 | */ | |
728 | void | |
729 | vxge_hw_channel_dtr_try_complete(struct __vxge_hw_channel *channel, void **dtrh) | |
730 | { | |
731 | vxge_assert(channel->compl_index < channel->length); | |
732 | ||
733 | *dtrh = channel->work_arr[channel->compl_index]; | |
734 | } | |
735 | ||
736 | /* | |
737 | * vxge_hw_channel_dtr_complete - Removes next completed dtr from the work array | |
738 | * @channel: Channel handle | |
739 | * | |
740 | * Removes the next completed dtr from work array | |
741 | * | |
742 | */ | |
743 | void vxge_hw_channel_dtr_complete(struct __vxge_hw_channel *channel) | |
744 | { | |
745 | channel->work_arr[channel->compl_index] = NULL; | |
746 | ||
747 | /* wrap-around */ | |
748 | if (++channel->compl_index == channel->length) | |
749 | channel->compl_index = 0; | |
750 | ||
751 | channel->stats->total_compl_cnt++; | |
752 | } | |
753 | ||
754 | /* | |
755 | * vxge_hw_channel_dtr_free - Frees a dtr | |
756 | * @channel: Channel handle | |
757 | * @dtr: DTR pointer | |
758 | * | |
759 | * Returns the dtr to free array | |
760 | * | |
761 | */ | |
762 | void vxge_hw_channel_dtr_free(struct __vxge_hw_channel *channel, void *dtrh) | |
763 | { | |
764 | channel->free_arr[--channel->free_ptr] = dtrh; | |
765 | } | |
766 | ||
767 | /* | |
768 | * vxge_hw_channel_dtr_count | |
769 | * @channel: Channel handle. Obtained via vxge_hw_channel_open(). | |
770 | * | |
771 | * Retreive number of DTRs available. This function can not be called | |
772 | * from data path. ring_initial_replenishi() is the only user. | |
773 | */ | |
774 | int vxge_hw_channel_dtr_count(struct __vxge_hw_channel *channel) | |
775 | { | |
776 | return (channel->reserve_ptr - channel->reserve_top) + | |
777 | (channel->length - channel->free_ptr); | |
778 | } | |
779 | ||
780 | /** | |
781 | * vxge_hw_ring_rxd_reserve - Reserve ring descriptor. | |
782 | * @ring: Handle to the ring object used for receive | |
783 | * @rxdh: Reserved descriptor. On success HW fills this "out" parameter | |
784 | * with a valid handle. | |
785 | * | |
786 | * Reserve Rx descriptor for the subsequent filling-in driver | |
787 | * and posting on the corresponding channel (@channelh) | |
788 | * via vxge_hw_ring_rxd_post(). | |
789 | * | |
790 | * Returns: VXGE_HW_OK - success. | |
791 | * VXGE_HW_INF_OUT_OF_DESCRIPTORS - Currently no descriptors available. | |
792 | * | |
793 | */ | |
794 | enum vxge_hw_status vxge_hw_ring_rxd_reserve(struct __vxge_hw_ring *ring, | |
795 | void **rxdh) | |
796 | { | |
797 | enum vxge_hw_status status; | |
798 | struct __vxge_hw_channel *channel; | |
799 | ||
800 | channel = &ring->channel; | |
801 | ||
802 | status = vxge_hw_channel_dtr_alloc(channel, rxdh); | |
803 | ||
804 | if (status == VXGE_HW_OK) { | |
805 | struct vxge_hw_ring_rxd_1 *rxdp = | |
806 | (struct vxge_hw_ring_rxd_1 *)*rxdh; | |
807 | ||
808 | rxdp->control_0 = rxdp->control_1 = 0; | |
809 | } | |
810 | ||
811 | return status; | |
812 | } | |
813 | ||
814 | /** | |
815 | * vxge_hw_ring_rxd_free - Free descriptor. | |
816 | * @ring: Handle to the ring object used for receive | |
817 | * @rxdh: Descriptor handle. | |
818 | * | |
819 | * Free the reserved descriptor. This operation is "symmetrical" to | |
820 | * vxge_hw_ring_rxd_reserve. The "free-ing" completes the descriptor's | |
821 | * lifecycle. | |
822 | * | |
823 | * After free-ing (see vxge_hw_ring_rxd_free()) the descriptor again can | |
824 | * be: | |
825 | * | |
826 | * - reserved (vxge_hw_ring_rxd_reserve); | |
827 | * | |
828 | * - posted (vxge_hw_ring_rxd_post); | |
829 | * | |
830 | * - completed (vxge_hw_ring_rxd_next_completed); | |
831 | * | |
832 | * - and recycled again (vxge_hw_ring_rxd_free). | |
833 | * | |
834 | * For alternative state transitions and more details please refer to | |
835 | * the design doc. | |
836 | * | |
837 | */ | |
838 | void vxge_hw_ring_rxd_free(struct __vxge_hw_ring *ring, void *rxdh) | |
839 | { | |
840 | struct __vxge_hw_channel *channel; | |
841 | ||
842 | channel = &ring->channel; | |
843 | ||
844 | vxge_hw_channel_dtr_free(channel, rxdh); | |
845 | ||
846 | } | |
847 | ||
848 | /** | |
849 | * vxge_hw_ring_rxd_pre_post - Prepare rxd and post | |
850 | * @ring: Handle to the ring object used for receive | |
851 | * @rxdh: Descriptor handle. | |
852 | * | |
853 | * This routine prepares a rxd and posts | |
854 | */ | |
855 | void vxge_hw_ring_rxd_pre_post(struct __vxge_hw_ring *ring, void *rxdh) | |
856 | { | |
857 | struct __vxge_hw_channel *channel; | |
858 | ||
859 | channel = &ring->channel; | |
860 | ||
861 | vxge_hw_channel_dtr_post(channel, rxdh); | |
862 | } | |
863 | ||
864 | /** | |
865 | * vxge_hw_ring_rxd_post_post - Process rxd after post. | |
866 | * @ring: Handle to the ring object used for receive | |
867 | * @rxdh: Descriptor handle. | |
868 | * | |
869 | * Processes rxd after post | |
870 | */ | |
871 | void vxge_hw_ring_rxd_post_post(struct __vxge_hw_ring *ring, void *rxdh) | |
872 | { | |
873 | struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; | |
874 | struct __vxge_hw_channel *channel; | |
875 | ||
876 | channel = &ring->channel; | |
877 | ||
878 | rxdp->control_0 |= VXGE_HW_RING_RXD_LIST_OWN_ADAPTER; | |
879 | ||
880 | if (ring->stats->common_stats.usage_cnt > 0) | |
881 | ring->stats->common_stats.usage_cnt--; | |
882 | } | |
883 | ||
884 | /** | |
885 | * vxge_hw_ring_rxd_post - Post descriptor on the ring. | |
886 | * @ring: Handle to the ring object used for receive | |
887 | * @rxdh: Descriptor obtained via vxge_hw_ring_rxd_reserve(). | |
888 | * | |
889 | * Post descriptor on the ring. | |
890 | * Prior to posting the descriptor should be filled in accordance with | |
891 | * Host/Titan interface specification for a given service (LL, etc.). | |
892 | * | |
893 | */ | |
894 | void vxge_hw_ring_rxd_post(struct __vxge_hw_ring *ring, void *rxdh) | |
895 | { | |
896 | struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; | |
897 | struct __vxge_hw_channel *channel; | |
898 | ||
899 | channel = &ring->channel; | |
900 | ||
901 | wmb(); | |
902 | rxdp->control_0 |= VXGE_HW_RING_RXD_LIST_OWN_ADAPTER; | |
903 | ||
904 | vxge_hw_channel_dtr_post(channel, rxdh); | |
905 | ||
906 | if (ring->stats->common_stats.usage_cnt > 0) | |
907 | ring->stats->common_stats.usage_cnt--; | |
908 | } | |
909 | ||
910 | /** | |
911 | * vxge_hw_ring_rxd_post_post_wmb - Process rxd after post with memory barrier. | |
912 | * @ring: Handle to the ring object used for receive | |
913 | * @rxdh: Descriptor handle. | |
914 | * | |
915 | * Processes rxd after post with memory barrier. | |
916 | */ | |
917 | void vxge_hw_ring_rxd_post_post_wmb(struct __vxge_hw_ring *ring, void *rxdh) | |
918 | { | |
919 | struct __vxge_hw_channel *channel; | |
920 | ||
921 | channel = &ring->channel; | |
922 | ||
923 | wmb(); | |
924 | vxge_hw_ring_rxd_post_post(ring, rxdh); | |
925 | } | |
926 | ||
927 | /** | |
928 | * vxge_hw_ring_rxd_next_completed - Get the _next_ completed descriptor. | |
929 | * @ring: Handle to the ring object used for receive | |
930 | * @rxdh: Descriptor handle. Returned by HW. | |
931 | * @t_code: Transfer code, as per Titan User Guide, | |
932 | * Receive Descriptor Format. Returned by HW. | |
933 | * | |
934 | * Retrieve the _next_ completed descriptor. | |
935 | * HW uses ring callback (*vxge_hw_ring_callback_f) to notifiy | |
936 | * driver of new completed descriptors. After that | |
937 | * the driver can use vxge_hw_ring_rxd_next_completed to retrieve the rest | |
938 | * completions (the very first completion is passed by HW via | |
939 | * vxge_hw_ring_callback_f). | |
940 | * | |
941 | * Implementation-wise, the driver is free to call | |
942 | * vxge_hw_ring_rxd_next_completed either immediately from inside the | |
943 | * ring callback, or in a deferred fashion and separate (from HW) | |
944 | * context. | |
945 | * | |
946 | * Non-zero @t_code means failure to fill-in receive buffer(s) | |
947 | * of the descriptor. | |
948 | * For instance, parity error detected during the data transfer. | |
949 | * In this case Titan will complete the descriptor and indicate | |
950 | * for the host that the received data is not to be used. | |
951 | * For details please refer to Titan User Guide. | |
952 | * | |
953 | * Returns: VXGE_HW_OK - success. | |
954 | * VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS - No completed descriptors | |
955 | * are currently available for processing. | |
956 | * | |
957 | * See also: vxge_hw_ring_callback_f{}, | |
958 | * vxge_hw_fifo_rxd_next_completed(), enum vxge_hw_status{}. | |
959 | */ | |
960 | enum vxge_hw_status vxge_hw_ring_rxd_next_completed( | |
961 | struct __vxge_hw_ring *ring, void **rxdh, u8 *t_code) | |
962 | { | |
963 | struct __vxge_hw_channel *channel; | |
964 | struct vxge_hw_ring_rxd_1 *rxdp; | |
965 | enum vxge_hw_status status = VXGE_HW_OK; | |
966 | ||
967 | channel = &ring->channel; | |
968 | ||
969 | vxge_hw_channel_dtr_try_complete(channel, rxdh); | |
970 | ||
971 | rxdp = (struct vxge_hw_ring_rxd_1 *)*rxdh; | |
972 | if (rxdp == NULL) { | |
973 | status = VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS; | |
974 | goto exit; | |
975 | } | |
976 | ||
977 | /* check whether it is not the end */ | |
978 | if (!(rxdp->control_0 & VXGE_HW_RING_RXD_LIST_OWN_ADAPTER)) { | |
979 | ||
980 | vxge_assert(((struct vxge_hw_ring_rxd_1 *)rxdp)->host_control != | |
981 | 0); | |
982 | ||
983 | ++ring->cmpl_cnt; | |
984 | vxge_hw_channel_dtr_complete(channel); | |
985 | ||
986 | *t_code = (u8)VXGE_HW_RING_RXD_T_CODE_GET(rxdp->control_0); | |
987 | ||
988 | vxge_assert(*t_code != VXGE_HW_RING_RXD_T_CODE_UNUSED); | |
989 | ||
990 | ring->stats->common_stats.usage_cnt++; | |
991 | if (ring->stats->common_stats.usage_max < | |
992 | ring->stats->common_stats.usage_cnt) | |
993 | ring->stats->common_stats.usage_max = | |
994 | ring->stats->common_stats.usage_cnt; | |
995 | ||
996 | status = VXGE_HW_OK; | |
997 | goto exit; | |
998 | } | |
999 | ||
1000 | /* reset it. since we don't want to return | |
1001 | * garbage to the driver */ | |
1002 | *rxdh = NULL; | |
1003 | status = VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS; | |
1004 | exit: | |
1005 | return status; | |
1006 | } | |
1007 | ||
1008 | /** | |
1009 | * vxge_hw_ring_handle_tcode - Handle transfer code. | |
1010 | * @ring: Handle to the ring object used for receive | |
1011 | * @rxdh: Descriptor handle. | |
1012 | * @t_code: One of the enumerated (and documented in the Titan user guide) | |
1013 | * "transfer codes". | |
1014 | * | |
1015 | * Handle descriptor's transfer code. The latter comes with each completed | |
1016 | * descriptor. | |
1017 | * | |
1018 | * Returns: one of the enum vxge_hw_status{} enumerated types. | |
1019 | * VXGE_HW_OK - for success. | |
1020 | * VXGE_HW_ERR_CRITICAL - when encounters critical error. | |
1021 | */ | |
1022 | enum vxge_hw_status vxge_hw_ring_handle_tcode( | |
1023 | struct __vxge_hw_ring *ring, void *rxdh, u8 t_code) | |
1024 | { | |
1025 | struct __vxge_hw_channel *channel; | |
1026 | enum vxge_hw_status status = VXGE_HW_OK; | |
1027 | ||
1028 | channel = &ring->channel; | |
1029 | ||
1030 | /* If the t_code is not supported and if the | |
1031 | * t_code is other than 0x5 (unparseable packet | |
1032 | * such as unknown UPV6 header), Drop it !!! | |
1033 | */ | |
1034 | ||
1035 | if (t_code == 0 || t_code == 5) { | |
1036 | status = VXGE_HW_OK; | |
1037 | goto exit; | |
1038 | } | |
1039 | ||
1040 | if (t_code > 0xF) { | |
1041 | status = VXGE_HW_ERR_INVALID_TCODE; | |
1042 | goto exit; | |
1043 | } | |
1044 | ||
1045 | ring->stats->rxd_t_code_err_cnt[t_code]++; | |
1046 | exit: | |
1047 | return status; | |
1048 | } | |
1049 | ||
1050 | /** | |
1051 | * __vxge_hw_non_offload_db_post - Post non offload doorbell | |
1052 | * | |
1053 | * @fifo: fifohandle | |
1054 | * @txdl_ptr: The starting location of the TxDL in host memory | |
1055 | * @num_txds: The highest TxD in this TxDL (0 to 255 means 1 to 256) | |
1056 | * @no_snoop: No snoop flags | |
1057 | * | |
1058 | * This function posts a non-offload doorbell to doorbell FIFO | |
1059 | * | |
1060 | */ | |
1061 | static void __vxge_hw_non_offload_db_post(struct __vxge_hw_fifo *fifo, | |
1062 | u64 txdl_ptr, u32 num_txds, u32 no_snoop) | |
1063 | { | |
1064 | struct __vxge_hw_channel *channel; | |
1065 | ||
1066 | channel = &fifo->channel; | |
1067 | ||
1068 | writeq(VXGE_HW_NODBW_TYPE(VXGE_HW_NODBW_TYPE_NODBW) | | |
1069 | VXGE_HW_NODBW_LAST_TXD_NUMBER(num_txds) | | |
1070 | VXGE_HW_NODBW_GET_NO_SNOOP(no_snoop), | |
1071 | &fifo->nofl_db->control_0); | |
1072 | ||
1073 | wmb(); | |
1074 | ||
1075 | writeq(txdl_ptr, &fifo->nofl_db->txdl_ptr); | |
1076 | wmb(); | |
1077 | ||
1078 | } | |
1079 | ||
1080 | /** | |
1081 | * vxge_hw_fifo_free_txdl_count_get - returns the number of txdls available in | |
1082 | * the fifo | |
1083 | * @fifoh: Handle to the fifo object used for non offload send | |
1084 | */ | |
1085 | u32 vxge_hw_fifo_free_txdl_count_get(struct __vxge_hw_fifo *fifoh) | |
1086 | { | |
1087 | return vxge_hw_channel_dtr_count(&fifoh->channel); | |
1088 | } | |
1089 | ||
1090 | /** | |
1091 | * vxge_hw_fifo_txdl_reserve - Reserve fifo descriptor. | |
1092 | * @fifoh: Handle to the fifo object used for non offload send | |
1093 | * @txdlh: Reserved descriptor. On success HW fills this "out" parameter | |
1094 | * with a valid handle. | |
1095 | * @txdl_priv: Buffer to return the pointer to per txdl space | |
1096 | * | |
1097 | * Reserve a single TxDL (that is, fifo descriptor) | |
1098 | * for the subsequent filling-in by driver) | |
1099 | * and posting on the corresponding channel (@channelh) | |
1100 | * via vxge_hw_fifo_txdl_post(). | |
1101 | * | |
1102 | * Note: it is the responsibility of driver to reserve multiple descriptors | |
1103 | * for lengthy (e.g., LSO) transmit operation. A single fifo descriptor | |
1104 | * carries up to configured number (fifo.max_frags) of contiguous buffers. | |
1105 | * | |
1106 | * Returns: VXGE_HW_OK - success; | |
1107 | * VXGE_HW_INF_OUT_OF_DESCRIPTORS - Currently no descriptors available | |
1108 | * | |
1109 | */ | |
1110 | enum vxge_hw_status vxge_hw_fifo_txdl_reserve( | |
1111 | struct __vxge_hw_fifo *fifo, | |
1112 | void **txdlh, void **txdl_priv) | |
1113 | { | |
1114 | struct __vxge_hw_channel *channel; | |
1115 | enum vxge_hw_status status; | |
1116 | int i; | |
1117 | ||
1118 | channel = &fifo->channel; | |
1119 | ||
1120 | status = vxge_hw_channel_dtr_alloc(channel, txdlh); | |
1121 | ||
1122 | if (status == VXGE_HW_OK) { | |
1123 | struct vxge_hw_fifo_txd *txdp = | |
1124 | (struct vxge_hw_fifo_txd *)*txdlh; | |
1125 | struct __vxge_hw_fifo_txdl_priv *priv; | |
1126 | ||
1127 | priv = __vxge_hw_fifo_txdl_priv(fifo, txdp); | |
1128 | ||
1129 | /* reset the TxDL's private */ | |
1130 | priv->align_dma_offset = 0; | |
1131 | priv->align_vaddr_start = priv->align_vaddr; | |
1132 | priv->align_used_frags = 0; | |
1133 | priv->frags = 0; | |
1134 | priv->alloc_frags = fifo->config->max_frags; | |
1135 | priv->next_txdl_priv = NULL; | |
1136 | ||
1137 | *txdl_priv = (void *)(size_t)txdp->host_control; | |
1138 | ||
1139 | for (i = 0; i < fifo->config->max_frags; i++) { | |
1140 | txdp = ((struct vxge_hw_fifo_txd *)*txdlh) + i; | |
1141 | txdp->control_0 = txdp->control_1 = 0; | |
1142 | } | |
1143 | } | |
1144 | ||
1145 | return status; | |
1146 | } | |
1147 | ||
1148 | /** | |
1149 | * vxge_hw_fifo_txdl_buffer_set - Set transmit buffer pointer in the | |
1150 | * descriptor. | |
1151 | * @fifo: Handle to the fifo object used for non offload send | |
1152 | * @txdlh: Descriptor handle. | |
1153 | * @frag_idx: Index of the data buffer in the caller's scatter-gather list | |
1154 | * (of buffers). | |
1155 | * @dma_pointer: DMA address of the data buffer referenced by @frag_idx. | |
1156 | * @size: Size of the data buffer (in bytes). | |
1157 | * | |
1158 | * This API is part of the preparation of the transmit descriptor for posting | |
1159 | * (via vxge_hw_fifo_txdl_post()). The related "preparation" APIs include | |
1160 | * vxge_hw_fifo_txdl_mss_set() and vxge_hw_fifo_txdl_cksum_set_bits(). | |
1161 | * All three APIs fill in the fields of the fifo descriptor, | |
1162 | * in accordance with the Titan specification. | |
1163 | * | |
1164 | */ | |
1165 | void vxge_hw_fifo_txdl_buffer_set(struct __vxge_hw_fifo *fifo, | |
1166 | void *txdlh, u32 frag_idx, | |
1167 | dma_addr_t dma_pointer, u32 size) | |
1168 | { | |
1169 | struct __vxge_hw_fifo_txdl_priv *txdl_priv; | |
1170 | struct vxge_hw_fifo_txd *txdp, *txdp_last; | |
1171 | struct __vxge_hw_channel *channel; | |
1172 | ||
1173 | channel = &fifo->channel; | |
1174 | ||
1175 | txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, txdlh); | |
1176 | txdp = (struct vxge_hw_fifo_txd *)txdlh + txdl_priv->frags; | |
1177 | ||
1178 | if (frag_idx != 0) | |
1179 | txdp->control_0 = txdp->control_1 = 0; | |
1180 | else { | |
1181 | txdp->control_0 |= VXGE_HW_FIFO_TXD_GATHER_CODE( | |
1182 | VXGE_HW_FIFO_TXD_GATHER_CODE_FIRST); | |
1183 | txdp->control_1 |= fifo->interrupt_type; | |
1184 | txdp->control_1 |= VXGE_HW_FIFO_TXD_INT_NUMBER( | |
1185 | fifo->tx_intr_num); | |
1186 | if (txdl_priv->frags) { | |
1187 | txdp_last = (struct vxge_hw_fifo_txd *)txdlh + | |
1188 | (txdl_priv->frags - 1); | |
1189 | txdp_last->control_0 |= VXGE_HW_FIFO_TXD_GATHER_CODE( | |
1190 | VXGE_HW_FIFO_TXD_GATHER_CODE_LAST); | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | vxge_assert(frag_idx < txdl_priv->alloc_frags); | |
1195 | ||
1196 | txdp->buffer_pointer = (u64)dma_pointer; | |
1197 | txdp->control_0 |= VXGE_HW_FIFO_TXD_BUFFER_SIZE(size); | |
1198 | fifo->stats->total_buffers++; | |
1199 | txdl_priv->frags++; | |
1200 | } | |
1201 | ||
1202 | /** | |
1203 | * vxge_hw_fifo_txdl_post - Post descriptor on the fifo channel. | |
1204 | * @fifo: Handle to the fifo object used for non offload send | |
1205 | * @txdlh: Descriptor obtained via vxge_hw_fifo_txdl_reserve() | |
1206 | * @frags: Number of contiguous buffers that are part of a single | |
1207 | * transmit operation. | |
1208 | * | |
1209 | * Post descriptor on the 'fifo' type channel for transmission. | |
1210 | * Prior to posting the descriptor should be filled in accordance with | |
1211 | * Host/Titan interface specification for a given service (LL, etc.). | |
1212 | * | |
1213 | */ | |
1214 | void vxge_hw_fifo_txdl_post(struct __vxge_hw_fifo *fifo, void *txdlh) | |
1215 | { | |
1216 | struct __vxge_hw_fifo_txdl_priv *txdl_priv; | |
1217 | struct vxge_hw_fifo_txd *txdp_last; | |
1218 | struct vxge_hw_fifo_txd *txdp_first; | |
1219 | struct __vxge_hw_channel *channel; | |
1220 | ||
1221 | channel = &fifo->channel; | |
1222 | ||
1223 | txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, txdlh); | |
1224 | txdp_first = (struct vxge_hw_fifo_txd *)txdlh; | |
1225 | ||
1226 | txdp_last = (struct vxge_hw_fifo_txd *)txdlh + (txdl_priv->frags - 1); | |
1227 | txdp_last->control_0 |= | |
1228 | VXGE_HW_FIFO_TXD_GATHER_CODE(VXGE_HW_FIFO_TXD_GATHER_CODE_LAST); | |
1229 | txdp_first->control_0 |= VXGE_HW_FIFO_TXD_LIST_OWN_ADAPTER; | |
1230 | ||
1231 | vxge_hw_channel_dtr_post(&fifo->channel, txdlh); | |
1232 | ||
1233 | __vxge_hw_non_offload_db_post(fifo, | |
1234 | (u64)(size_t)txdl_priv->dma_addr, | |
1235 | txdl_priv->frags - 1, | |
1236 | fifo->no_snoop_bits); | |
1237 | ||
1238 | fifo->stats->total_posts++; | |
1239 | fifo->stats->common_stats.usage_cnt++; | |
1240 | if (fifo->stats->common_stats.usage_max < | |
1241 | fifo->stats->common_stats.usage_cnt) | |
1242 | fifo->stats->common_stats.usage_max = | |
1243 | fifo->stats->common_stats.usage_cnt; | |
1244 | } | |
1245 | ||
1246 | /** | |
1247 | * vxge_hw_fifo_txdl_next_completed - Retrieve next completed descriptor. | |
1248 | * @fifo: Handle to the fifo object used for non offload send | |
1249 | * @txdlh: Descriptor handle. Returned by HW. | |
1250 | * @t_code: Transfer code, as per Titan User Guide, | |
1251 | * Transmit Descriptor Format. | |
1252 | * Returned by HW. | |
1253 | * | |
1254 | * Retrieve the _next_ completed descriptor. | |
1255 | * HW uses channel callback (*vxge_hw_channel_callback_f) to notifiy | |
1256 | * driver of new completed descriptors. After that | |
1257 | * the driver can use vxge_hw_fifo_txdl_next_completed to retrieve the rest | |
1258 | * completions (the very first completion is passed by HW via | |
1259 | * vxge_hw_channel_callback_f). | |
1260 | * | |
1261 | * Implementation-wise, the driver is free to call | |
1262 | * vxge_hw_fifo_txdl_next_completed either immediately from inside the | |
1263 | * channel callback, or in a deferred fashion and separate (from HW) | |
1264 | * context. | |
1265 | * | |
1266 | * Non-zero @t_code means failure to process the descriptor. | |
1267 | * The failure could happen, for instance, when the link is | |
1268 | * down, in which case Titan completes the descriptor because it | |
1269 | * is not able to send the data out. | |
1270 | * | |
1271 | * For details please refer to Titan User Guide. | |
1272 | * | |
1273 | * Returns: VXGE_HW_OK - success. | |
1274 | * VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS - No completed descriptors | |
1275 | * are currently available for processing. | |
1276 | * | |
1277 | */ | |
1278 | enum vxge_hw_status vxge_hw_fifo_txdl_next_completed( | |
1279 | struct __vxge_hw_fifo *fifo, void **txdlh, | |
1280 | enum vxge_hw_fifo_tcode *t_code) | |
1281 | { | |
1282 | struct __vxge_hw_channel *channel; | |
1283 | struct vxge_hw_fifo_txd *txdp; | |
1284 | enum vxge_hw_status status = VXGE_HW_OK; | |
1285 | ||
1286 | channel = &fifo->channel; | |
1287 | ||
1288 | vxge_hw_channel_dtr_try_complete(channel, txdlh); | |
1289 | ||
1290 | txdp = (struct vxge_hw_fifo_txd *)*txdlh; | |
1291 | if (txdp == NULL) { | |
1292 | status = VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS; | |
1293 | goto exit; | |
1294 | } | |
1295 | ||
1296 | /* check whether host owns it */ | |
1297 | if (!(txdp->control_0 & VXGE_HW_FIFO_TXD_LIST_OWN_ADAPTER)) { | |
1298 | ||
1299 | vxge_assert(txdp->host_control != 0); | |
1300 | ||
1301 | vxge_hw_channel_dtr_complete(channel); | |
1302 | ||
1303 | *t_code = (u8)VXGE_HW_FIFO_TXD_T_CODE_GET(txdp->control_0); | |
1304 | ||
1305 | if (fifo->stats->common_stats.usage_cnt > 0) | |
1306 | fifo->stats->common_stats.usage_cnt--; | |
1307 | ||
1308 | status = VXGE_HW_OK; | |
1309 | goto exit; | |
1310 | } | |
1311 | ||
1312 | /* no more completions */ | |
1313 | *txdlh = NULL; | |
1314 | status = VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS; | |
1315 | exit: | |
1316 | return status; | |
1317 | } | |
1318 | ||
1319 | /** | |
1320 | * vxge_hw_fifo_handle_tcode - Handle transfer code. | |
1321 | * @fifo: Handle to the fifo object used for non offload send | |
1322 | * @txdlh: Descriptor handle. | |
1323 | * @t_code: One of the enumerated (and documented in the Titan user guide) | |
1324 | * "transfer codes". | |
1325 | * | |
1326 | * Handle descriptor's transfer code. The latter comes with each completed | |
1327 | * descriptor. | |
1328 | * | |
1329 | * Returns: one of the enum vxge_hw_status{} enumerated types. | |
1330 | * VXGE_HW_OK - for success. | |
1331 | * VXGE_HW_ERR_CRITICAL - when encounters critical error. | |
1332 | */ | |
1333 | enum vxge_hw_status vxge_hw_fifo_handle_tcode(struct __vxge_hw_fifo *fifo, | |
1334 | void *txdlh, | |
1335 | enum vxge_hw_fifo_tcode t_code) | |
1336 | { | |
1337 | struct __vxge_hw_channel *channel; | |
1338 | ||
1339 | enum vxge_hw_status status = VXGE_HW_OK; | |
1340 | channel = &fifo->channel; | |
1341 | ||
1342 | if (((t_code & 0x7) < 0) || ((t_code & 0x7) > 0x4)) { | |
1343 | status = VXGE_HW_ERR_INVALID_TCODE; | |
1344 | goto exit; | |
1345 | } | |
1346 | ||
1347 | fifo->stats->txd_t_code_err_cnt[t_code]++; | |
1348 | exit: | |
1349 | return status; | |
1350 | } | |
1351 | ||
1352 | /** | |
1353 | * vxge_hw_fifo_txdl_free - Free descriptor. | |
1354 | * @fifo: Handle to the fifo object used for non offload send | |
1355 | * @txdlh: Descriptor handle. | |
1356 | * | |
1357 | * Free the reserved descriptor. This operation is "symmetrical" to | |
1358 | * vxge_hw_fifo_txdl_reserve. The "free-ing" completes the descriptor's | |
1359 | * lifecycle. | |
1360 | * | |
1361 | * After free-ing (see vxge_hw_fifo_txdl_free()) the descriptor again can | |
1362 | * be: | |
1363 | * | |
1364 | * - reserved (vxge_hw_fifo_txdl_reserve); | |
1365 | * | |
1366 | * - posted (vxge_hw_fifo_txdl_post); | |
1367 | * | |
1368 | * - completed (vxge_hw_fifo_txdl_next_completed); | |
1369 | * | |
1370 | * - and recycled again (vxge_hw_fifo_txdl_free). | |
1371 | * | |
1372 | * For alternative state transitions and more details please refer to | |
1373 | * the design doc. | |
1374 | * | |
1375 | */ | |
1376 | void vxge_hw_fifo_txdl_free(struct __vxge_hw_fifo *fifo, void *txdlh) | |
1377 | { | |
1378 | struct __vxge_hw_fifo_txdl_priv *txdl_priv; | |
1379 | u32 max_frags; | |
1380 | struct __vxge_hw_channel *channel; | |
1381 | ||
1382 | channel = &fifo->channel; | |
1383 | ||
1384 | txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, | |
1385 | (struct vxge_hw_fifo_txd *)txdlh); | |
1386 | ||
1387 | max_frags = fifo->config->max_frags; | |
1388 | ||
1389 | vxge_hw_channel_dtr_free(channel, txdlh); | |
1390 | } | |
1391 | ||
1392 | /** | |
1393 | * vxge_hw_vpath_mac_addr_add - Add the mac address entry for this vpath | |
1394 | * to MAC address table. | |
1395 | * @vp: Vpath handle. | |
1396 | * @macaddr: MAC address to be added for this vpath into the list | |
1397 | * @macaddr_mask: MAC address mask for macaddr | |
1398 | * @duplicate_mode: Duplicate MAC address add mode. Please see | |
1399 | * enum vxge_hw_vpath_mac_addr_add_mode{} | |
1400 | * | |
1401 | * Adds the given mac address and mac address mask into the list for this | |
1402 | * vpath. | |
1403 | * see also: vxge_hw_vpath_mac_addr_delete, vxge_hw_vpath_mac_addr_get and | |
1404 | * vxge_hw_vpath_mac_addr_get_next | |
1405 | * | |
1406 | */ | |
1407 | enum vxge_hw_status | |
1408 | vxge_hw_vpath_mac_addr_add( | |
1409 | struct __vxge_hw_vpath_handle *vp, | |
1410 | u8 (macaddr)[ETH_ALEN], | |
1411 | u8 (macaddr_mask)[ETH_ALEN], | |
1412 | enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode) | |
1413 | { | |
1414 | u32 i; | |
1415 | u64 data1 = 0ULL; | |
1416 | u64 data2 = 0ULL; | |
1417 | enum vxge_hw_status status = VXGE_HW_OK; | |
1418 | ||
1419 | if (vp == NULL) { | |
1420 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1421 | goto exit; | |
1422 | } | |
1423 | ||
1424 | for (i = 0; i < ETH_ALEN; i++) { | |
1425 | data1 <<= 8; | |
1426 | data1 |= (u8)macaddr[i]; | |
1427 | ||
1428 | data2 <<= 8; | |
1429 | data2 |= (u8)macaddr_mask[i]; | |
1430 | } | |
1431 | ||
1432 | switch (duplicate_mode) { | |
1433 | case VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE: | |
1434 | i = 0; | |
1435 | break; | |
1436 | case VXGE_HW_VPATH_MAC_ADDR_DISCARD_DUPLICATE: | |
1437 | i = 1; | |
1438 | break; | |
1439 | case VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE: | |
1440 | i = 2; | |
1441 | break; | |
1442 | default: | |
1443 | i = 0; | |
1444 | break; | |
1445 | } | |
1446 | ||
1447 | status = __vxge_hw_vpath_rts_table_set(vp, | |
1448 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_ADD_ENTRY, | |
1449 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA, | |
1450 | 0, | |
1451 | VXGE_HW_RTS_ACCESS_STEER_DATA0_DA_MAC_ADDR(data1), | |
1452 | VXGE_HW_RTS_ACCESS_STEER_DATA1_DA_MAC_ADDR_MASK(data2)| | |
1453 | VXGE_HW_RTS_ACCESS_STEER_DATA1_DA_MAC_ADDR_MODE(i)); | |
1454 | exit: | |
1455 | return status; | |
1456 | } | |
1457 | ||
1458 | /** | |
1459 | * vxge_hw_vpath_mac_addr_get - Get the first mac address entry for this vpath | |
1460 | * from MAC address table. | |
1461 | * @vp: Vpath handle. | |
1462 | * @macaddr: First MAC address entry for this vpath in the list | |
1463 | * @macaddr_mask: MAC address mask for macaddr | |
1464 | * | |
1465 | * Returns the first mac address and mac address mask in the list for this | |
1466 | * vpath. | |
1467 | * see also: vxge_hw_vpath_mac_addr_get_next | |
1468 | * | |
1469 | */ | |
1470 | enum vxge_hw_status | |
1471 | vxge_hw_vpath_mac_addr_get( | |
1472 | struct __vxge_hw_vpath_handle *vp, | |
1473 | u8 (macaddr)[ETH_ALEN], | |
1474 | u8 (macaddr_mask)[ETH_ALEN]) | |
1475 | { | |
1476 | u32 i; | |
1477 | u64 data1 = 0ULL; | |
1478 | u64 data2 = 0ULL; | |
1479 | enum vxge_hw_status status = VXGE_HW_OK; | |
1480 | ||
1481 | if (vp == NULL) { | |
1482 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1483 | goto exit; | |
1484 | } | |
1485 | ||
1486 | status = __vxge_hw_vpath_rts_table_get(vp, | |
1487 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_FIRST_ENTRY, | |
1488 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA, | |
1489 | 0, &data1, &data2); | |
1490 | ||
1491 | if (status != VXGE_HW_OK) | |
1492 | goto exit; | |
1493 | ||
1494 | data1 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data1); | |
1495 | ||
1496 | data2 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK(data2); | |
1497 | ||
1498 | for (i = ETH_ALEN; i > 0; i--) { | |
1499 | macaddr[i-1] = (u8)(data1 & 0xFF); | |
1500 | data1 >>= 8; | |
1501 | ||
1502 | macaddr_mask[i-1] = (u8)(data2 & 0xFF); | |
1503 | data2 >>= 8; | |
1504 | } | |
1505 | exit: | |
1506 | return status; | |
1507 | } | |
1508 | ||
1509 | /** | |
1510 | * vxge_hw_vpath_mac_addr_get_next - Get the next mac address entry for this | |
1511 | * vpath | |
1512 | * from MAC address table. | |
1513 | * @vp: Vpath handle. | |
1514 | * @macaddr: Next MAC address entry for this vpath in the list | |
1515 | * @macaddr_mask: MAC address mask for macaddr | |
1516 | * | |
1517 | * Returns the next mac address and mac address mask in the list for this | |
1518 | * vpath. | |
1519 | * see also: vxge_hw_vpath_mac_addr_get | |
1520 | * | |
1521 | */ | |
1522 | enum vxge_hw_status | |
1523 | vxge_hw_vpath_mac_addr_get_next( | |
1524 | struct __vxge_hw_vpath_handle *vp, | |
1525 | u8 (macaddr)[ETH_ALEN], | |
1526 | u8 (macaddr_mask)[ETH_ALEN]) | |
1527 | { | |
1528 | u32 i; | |
1529 | u64 data1 = 0ULL; | |
1530 | u64 data2 = 0ULL; | |
1531 | enum vxge_hw_status status = VXGE_HW_OK; | |
1532 | ||
1533 | if (vp == NULL) { | |
1534 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1535 | goto exit; | |
1536 | } | |
1537 | ||
1538 | status = __vxge_hw_vpath_rts_table_get(vp, | |
1539 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_NEXT_ENTRY, | |
1540 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA, | |
1541 | 0, &data1, &data2); | |
1542 | ||
1543 | if (status != VXGE_HW_OK) | |
1544 | goto exit; | |
1545 | ||
1546 | data1 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data1); | |
1547 | ||
1548 | data2 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK(data2); | |
1549 | ||
1550 | for (i = ETH_ALEN; i > 0; i--) { | |
1551 | macaddr[i-1] = (u8)(data1 & 0xFF); | |
1552 | data1 >>= 8; | |
1553 | ||
1554 | macaddr_mask[i-1] = (u8)(data2 & 0xFF); | |
1555 | data2 >>= 8; | |
1556 | } | |
1557 | ||
1558 | exit: | |
1559 | return status; | |
1560 | } | |
1561 | ||
1562 | /** | |
1563 | * vxge_hw_vpath_mac_addr_delete - Delete the mac address entry for this vpath | |
1564 | * to MAC address table. | |
1565 | * @vp: Vpath handle. | |
1566 | * @macaddr: MAC address to be added for this vpath into the list | |
1567 | * @macaddr_mask: MAC address mask for macaddr | |
1568 | * | |
1569 | * Delete the given mac address and mac address mask into the list for this | |
1570 | * vpath. | |
1571 | * see also: vxge_hw_vpath_mac_addr_add, vxge_hw_vpath_mac_addr_get and | |
1572 | * vxge_hw_vpath_mac_addr_get_next | |
1573 | * | |
1574 | */ | |
1575 | enum vxge_hw_status | |
1576 | vxge_hw_vpath_mac_addr_delete( | |
1577 | struct __vxge_hw_vpath_handle *vp, | |
1578 | u8 (macaddr)[ETH_ALEN], | |
1579 | u8 (macaddr_mask)[ETH_ALEN]) | |
1580 | { | |
1581 | u32 i; | |
1582 | u64 data1 = 0ULL; | |
1583 | u64 data2 = 0ULL; | |
1584 | enum vxge_hw_status status = VXGE_HW_OK; | |
1585 | ||
1586 | if (vp == NULL) { | |
1587 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1588 | goto exit; | |
1589 | } | |
1590 | ||
1591 | for (i = 0; i < ETH_ALEN; i++) { | |
1592 | data1 <<= 8; | |
1593 | data1 |= (u8)macaddr[i]; | |
1594 | ||
1595 | data2 <<= 8; | |
1596 | data2 |= (u8)macaddr_mask[i]; | |
1597 | } | |
1598 | ||
1599 | status = __vxge_hw_vpath_rts_table_set(vp, | |
1600 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_DELETE_ENTRY, | |
1601 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA, | |
1602 | 0, | |
1603 | VXGE_HW_RTS_ACCESS_STEER_DATA0_DA_MAC_ADDR(data1), | |
1604 | VXGE_HW_RTS_ACCESS_STEER_DATA1_DA_MAC_ADDR_MASK(data2)); | |
1605 | exit: | |
1606 | return status; | |
1607 | } | |
1608 | ||
1609 | /** | |
1610 | * vxge_hw_vpath_vid_add - Add the vlan id entry for this vpath | |
1611 | * to vlan id table. | |
1612 | * @vp: Vpath handle. | |
1613 | * @vid: vlan id to be added for this vpath into the list | |
1614 | * | |
1615 | * Adds the given vlan id into the list for this vpath. | |
1616 | * see also: vxge_hw_vpath_vid_delete, vxge_hw_vpath_vid_get and | |
1617 | * vxge_hw_vpath_vid_get_next | |
1618 | * | |
1619 | */ | |
1620 | enum vxge_hw_status | |
1621 | vxge_hw_vpath_vid_add(struct __vxge_hw_vpath_handle *vp, u64 vid) | |
1622 | { | |
1623 | enum vxge_hw_status status = VXGE_HW_OK; | |
1624 | ||
1625 | if (vp == NULL) { | |
1626 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1627 | goto exit; | |
1628 | } | |
1629 | ||
1630 | status = __vxge_hw_vpath_rts_table_set(vp, | |
1631 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_ADD_ENTRY, | |
1632 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_VID, | |
1633 | 0, VXGE_HW_RTS_ACCESS_STEER_DATA0_VLAN_ID(vid), 0); | |
1634 | exit: | |
1635 | return status; | |
1636 | } | |
1637 | ||
1638 | /** | |
1639 | * vxge_hw_vpath_vid_get - Get the first vid entry for this vpath | |
1640 | * from vlan id table. | |
1641 | * @vp: Vpath handle. | |
1642 | * @vid: Buffer to return vlan id | |
1643 | * | |
1644 | * Returns the first vlan id in the list for this vpath. | |
1645 | * see also: vxge_hw_vpath_vid_get_next | |
1646 | * | |
1647 | */ | |
1648 | enum vxge_hw_status | |
1649 | vxge_hw_vpath_vid_get(struct __vxge_hw_vpath_handle *vp, u64 *vid) | |
1650 | { | |
1651 | u64 data; | |
1652 | enum vxge_hw_status status = VXGE_HW_OK; | |
1653 | ||
1654 | if (vp == NULL) { | |
1655 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1656 | goto exit; | |
1657 | } | |
1658 | ||
1659 | status = __vxge_hw_vpath_rts_table_get(vp, | |
1660 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_FIRST_ENTRY, | |
1661 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_VID, | |
1662 | 0, vid, &data); | |
1663 | ||
1664 | *vid = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_VLAN_ID(*vid); | |
1665 | exit: | |
1666 | return status; | |
1667 | } | |
1668 | ||
1669 | /** | |
1670 | * vxge_hw_vpath_vid_get_next - Get the next vid entry for this vpath | |
1671 | * from vlan id table. | |
1672 | * @vp: Vpath handle. | |
1673 | * @vid: Buffer to return vlan id | |
1674 | * | |
1675 | * Returns the next vlan id in the list for this vpath. | |
1676 | * see also: vxge_hw_vpath_vid_get | |
1677 | * | |
1678 | */ | |
1679 | enum vxge_hw_status | |
1680 | vxge_hw_vpath_vid_get_next(struct __vxge_hw_vpath_handle *vp, u64 *vid) | |
1681 | { | |
1682 | u64 data; | |
1683 | enum vxge_hw_status status = VXGE_HW_OK; | |
1684 | ||
1685 | if (vp == NULL) { | |
1686 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1687 | goto exit; | |
1688 | } | |
1689 | ||
1690 | status = __vxge_hw_vpath_rts_table_get(vp, | |
1691 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_NEXT_ENTRY, | |
1692 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_VID, | |
1693 | 0, vid, &data); | |
1694 | ||
1695 | *vid = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_VLAN_ID(*vid); | |
1696 | exit: | |
1697 | return status; | |
1698 | } | |
1699 | ||
1700 | /** | |
1701 | * vxge_hw_vpath_vid_delete - Delete the vlan id entry for this vpath | |
1702 | * to vlan id table. | |
1703 | * @vp: Vpath handle. | |
1704 | * @vid: vlan id to be added for this vpath into the list | |
1705 | * | |
1706 | * Adds the given vlan id into the list for this vpath. | |
1707 | * see also: vxge_hw_vpath_vid_add, vxge_hw_vpath_vid_get and | |
1708 | * vxge_hw_vpath_vid_get_next | |
1709 | * | |
1710 | */ | |
1711 | enum vxge_hw_status | |
1712 | vxge_hw_vpath_vid_delete(struct __vxge_hw_vpath_handle *vp, u64 vid) | |
1713 | { | |
1714 | enum vxge_hw_status status = VXGE_HW_OK; | |
1715 | ||
1716 | if (vp == NULL) { | |
1717 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1718 | goto exit; | |
1719 | } | |
1720 | ||
1721 | status = __vxge_hw_vpath_rts_table_set(vp, | |
1722 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_DELETE_ENTRY, | |
1723 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_VID, | |
1724 | 0, VXGE_HW_RTS_ACCESS_STEER_DATA0_VLAN_ID(vid), 0); | |
1725 | exit: | |
1726 | return status; | |
1727 | } | |
1728 | ||
1729 | /** | |
1730 | * vxge_hw_vpath_promisc_enable - Enable promiscuous mode. | |
1731 | * @vp: Vpath handle. | |
1732 | * | |
1733 | * Enable promiscuous mode of Titan-e operation. | |
1734 | * | |
1735 | * See also: vxge_hw_vpath_promisc_disable(). | |
1736 | */ | |
1737 | enum vxge_hw_status vxge_hw_vpath_promisc_enable( | |
1738 | struct __vxge_hw_vpath_handle *vp) | |
1739 | { | |
1740 | u64 val64; | |
1741 | struct __vxge_hw_virtualpath *vpath; | |
1742 | enum vxge_hw_status status = VXGE_HW_OK; | |
1743 | ||
1744 | if ((vp == NULL) || (vp->vpath->ringh == NULL)) { | |
1745 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1746 | goto exit; | |
1747 | } | |
1748 | ||
1749 | vpath = vp->vpath; | |
1750 | ||
1751 | /* Enable promiscous mode for function 0 only */ | |
1752 | if (!(vpath->hldev->access_rights & | |
1753 | VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) | |
1754 | return VXGE_HW_OK; | |
1755 | ||
1756 | val64 = readq(&vpath->vp_reg->rxmac_vcfg0); | |
1757 | ||
1758 | if (!(val64 & VXGE_HW_RXMAC_VCFG0_UCAST_ALL_ADDR_EN)) { | |
1759 | ||
1760 | val64 |= VXGE_HW_RXMAC_VCFG0_UCAST_ALL_ADDR_EN | | |
1761 | VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN | | |
1762 | VXGE_HW_RXMAC_VCFG0_BCAST_EN | | |
1763 | VXGE_HW_RXMAC_VCFG0_ALL_VID_EN; | |
1764 | ||
1765 | writeq(val64, &vpath->vp_reg->rxmac_vcfg0); | |
1766 | } | |
1767 | exit: | |
1768 | return status; | |
1769 | } | |
1770 | ||
1771 | /** | |
1772 | * vxge_hw_vpath_promisc_disable - Disable promiscuous mode. | |
1773 | * @vp: Vpath handle. | |
1774 | * | |
1775 | * Disable promiscuous mode of Titan-e operation. | |
1776 | * | |
1777 | * See also: vxge_hw_vpath_promisc_enable(). | |
1778 | */ | |
1779 | enum vxge_hw_status vxge_hw_vpath_promisc_disable( | |
1780 | struct __vxge_hw_vpath_handle *vp) | |
1781 | { | |
1782 | u64 val64; | |
1783 | struct __vxge_hw_virtualpath *vpath; | |
1784 | enum vxge_hw_status status = VXGE_HW_OK; | |
1785 | ||
1786 | if ((vp == NULL) || (vp->vpath->ringh == NULL)) { | |
1787 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1788 | goto exit; | |
1789 | } | |
1790 | ||
1791 | vpath = vp->vpath; | |
1792 | ||
1793 | val64 = readq(&vpath->vp_reg->rxmac_vcfg0); | |
1794 | ||
1795 | if (val64 & VXGE_HW_RXMAC_VCFG0_UCAST_ALL_ADDR_EN) { | |
1796 | ||
1797 | val64 &= ~(VXGE_HW_RXMAC_VCFG0_UCAST_ALL_ADDR_EN | | |
1798 | VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN | | |
1799 | VXGE_HW_RXMAC_VCFG0_ALL_VID_EN); | |
1800 | ||
1801 | writeq(val64, &vpath->vp_reg->rxmac_vcfg0); | |
1802 | } | |
1803 | exit: | |
1804 | return status; | |
1805 | } | |
1806 | ||
1807 | /* | |
1808 | * vxge_hw_vpath_bcast_enable - Enable broadcast | |
1809 | * @vp: Vpath handle. | |
1810 | * | |
1811 | * Enable receiving broadcasts. | |
1812 | */ | |
1813 | enum vxge_hw_status vxge_hw_vpath_bcast_enable( | |
1814 | struct __vxge_hw_vpath_handle *vp) | |
1815 | { | |
1816 | u64 val64; | |
1817 | struct __vxge_hw_virtualpath *vpath; | |
1818 | enum vxge_hw_status status = VXGE_HW_OK; | |
1819 | ||
1820 | if ((vp == NULL) || (vp->vpath->ringh == NULL)) { | |
1821 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1822 | goto exit; | |
1823 | } | |
1824 | ||
1825 | vpath = vp->vpath; | |
1826 | ||
1827 | val64 = readq(&vpath->vp_reg->rxmac_vcfg0); | |
1828 | ||
1829 | if (!(val64 & VXGE_HW_RXMAC_VCFG0_BCAST_EN)) { | |
1830 | val64 |= VXGE_HW_RXMAC_VCFG0_BCAST_EN; | |
1831 | writeq(val64, &vpath->vp_reg->rxmac_vcfg0); | |
1832 | } | |
1833 | exit: | |
1834 | return status; | |
1835 | } | |
1836 | ||
1837 | /** | |
1838 | * vxge_hw_vpath_mcast_enable - Enable multicast addresses. | |
1839 | * @vp: Vpath handle. | |
1840 | * | |
1841 | * Enable Titan-e multicast addresses. | |
1842 | * Returns: VXGE_HW_OK on success. | |
1843 | * | |
1844 | */ | |
1845 | enum vxge_hw_status vxge_hw_vpath_mcast_enable( | |
1846 | struct __vxge_hw_vpath_handle *vp) | |
1847 | { | |
1848 | u64 val64; | |
1849 | struct __vxge_hw_virtualpath *vpath; | |
1850 | enum vxge_hw_status status = VXGE_HW_OK; | |
1851 | ||
1852 | if ((vp == NULL) || (vp->vpath->ringh == NULL)) { | |
1853 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1854 | goto exit; | |
1855 | } | |
1856 | ||
1857 | vpath = vp->vpath; | |
1858 | ||
1859 | val64 = readq(&vpath->vp_reg->rxmac_vcfg0); | |
1860 | ||
1861 | if (!(val64 & VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN)) { | |
1862 | val64 |= VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN; | |
1863 | writeq(val64, &vpath->vp_reg->rxmac_vcfg0); | |
1864 | } | |
1865 | exit: | |
1866 | return status; | |
1867 | } | |
1868 | ||
1869 | /** | |
1870 | * vxge_hw_vpath_mcast_disable - Disable multicast addresses. | |
1871 | * @vp: Vpath handle. | |
1872 | * | |
1873 | * Disable Titan-e multicast addresses. | |
1874 | * Returns: VXGE_HW_OK - success. | |
1875 | * VXGE_HW_ERR_INVALID_HANDLE - Invalid handle | |
1876 | * | |
1877 | */ | |
1878 | enum vxge_hw_status | |
1879 | vxge_hw_vpath_mcast_disable(struct __vxge_hw_vpath_handle *vp) | |
1880 | { | |
1881 | u64 val64; | |
1882 | struct __vxge_hw_virtualpath *vpath; | |
1883 | enum vxge_hw_status status = VXGE_HW_OK; | |
1884 | ||
1885 | if ((vp == NULL) || (vp->vpath->ringh == NULL)) { | |
1886 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
1887 | goto exit; | |
1888 | } | |
1889 | ||
1890 | vpath = vp->vpath; | |
1891 | ||
1892 | val64 = readq(&vpath->vp_reg->rxmac_vcfg0); | |
1893 | ||
1894 | if (val64 & VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN) { | |
1895 | val64 &= ~VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN; | |
1896 | writeq(val64, &vpath->vp_reg->rxmac_vcfg0); | |
1897 | } | |
1898 | exit: | |
1899 | return status; | |
1900 | } | |
1901 | ||
1902 | /* | |
1903 | * __vxge_hw_vpath_alarm_process - Process Alarms. | |
1904 | * @vpath: Virtual Path. | |
1905 | * @skip_alarms: Do not clear the alarms | |
1906 | * | |
1907 | * Process vpath alarms. | |
1908 | * | |
1909 | */ | |
1910 | enum vxge_hw_status __vxge_hw_vpath_alarm_process( | |
1911 | struct __vxge_hw_virtualpath *vpath, | |
1912 | u32 skip_alarms) | |
1913 | { | |
1914 | u64 val64; | |
1915 | u64 alarm_status; | |
1916 | u64 pic_status; | |
1917 | struct __vxge_hw_device *hldev = NULL; | |
1918 | enum vxge_hw_event alarm_event = VXGE_HW_EVENT_UNKNOWN; | |
1919 | u64 mask64; | |
1920 | struct vxge_hw_vpath_stats_sw_info *sw_stats; | |
1921 | struct vxge_hw_vpath_reg __iomem *vp_reg; | |
1922 | ||
1923 | if (vpath == NULL) { | |
a4fe91ee | 1924 | alarm_event = VXGE_HW_SET_LEVEL(VXGE_HW_EVENT_UNKNOWN, |
11324132 | 1925 | alarm_event); |
4e204c10 | 1926 | goto out2; |
11324132 RV |
1927 | } |
1928 | ||
1929 | hldev = vpath->hldev; | |
1930 | vp_reg = vpath->vp_reg; | |
1931 | alarm_status = readq(&vp_reg->vpath_general_int_status); | |
1932 | ||
1933 | if (alarm_status == VXGE_HW_ALL_FOXES) { | |
a4fe91ee | 1934 | alarm_event = VXGE_HW_SET_LEVEL(VXGE_HW_EVENT_SLOT_FREEZE, |
11324132 RV |
1935 | alarm_event); |
1936 | goto out; | |
1937 | } | |
1938 | ||
1939 | sw_stats = vpath->sw_stats; | |
1940 | ||
1941 | if (alarm_status & ~( | |
1942 | VXGE_HW_VPATH_GENERAL_INT_STATUS_PIC_INT | | |
1943 | VXGE_HW_VPATH_GENERAL_INT_STATUS_PCI_INT | | |
1944 | VXGE_HW_VPATH_GENERAL_INT_STATUS_WRDMA_INT | | |
1945 | VXGE_HW_VPATH_GENERAL_INT_STATUS_XMAC_INT)) { | |
1946 | sw_stats->error_stats.unknown_alarms++; | |
1947 | ||
a4fe91ee | 1948 | alarm_event = VXGE_HW_SET_LEVEL(VXGE_HW_EVENT_UNKNOWN, |
11324132 RV |
1949 | alarm_event); |
1950 | goto out; | |
1951 | } | |
1952 | ||
1953 | if (alarm_status & VXGE_HW_VPATH_GENERAL_INT_STATUS_XMAC_INT) { | |
1954 | ||
1955 | val64 = readq(&vp_reg->xgmac_vp_int_status); | |
1956 | ||
1957 | if (val64 & | |
1958 | VXGE_HW_XGMAC_VP_INT_STATUS_ASIC_NTWK_VP_ERR_ASIC_NTWK_VP_INT) { | |
1959 | ||
1960 | val64 = readq(&vp_reg->asic_ntwk_vp_err_reg); | |
1961 | ||
1962 | if (((val64 & | |
1963 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_FLT) && | |
1964 | (!(val64 & | |
1965 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_OK))) || | |
1966 | ((val64 & | |
1967 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_FLT_OCCURR) | |
1968 | && (!(val64 & | |
1969 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_OK_OCCURR) | |
1970 | ))) { | |
1971 | sw_stats->error_stats.network_sustained_fault++; | |
1972 | ||
1973 | writeq( | |
1974 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_FLT, | |
1975 | &vp_reg->asic_ntwk_vp_err_mask); | |
1976 | ||
1977 | __vxge_hw_device_handle_link_down_ind(hldev); | |
a4fe91ee DM |
1978 | alarm_event = VXGE_HW_SET_LEVEL( |
1979 | VXGE_HW_EVENT_LINK_DOWN, alarm_event); | |
11324132 RV |
1980 | } |
1981 | ||
1982 | if (((val64 & | |
1983 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_OK) && | |
1984 | (!(val64 & | |
1985 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_FLT))) || | |
1986 | ((val64 & | |
1987 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_OK_OCCURR) | |
1988 | && (!(val64 & | |
1989 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_FLT_OCCURR) | |
1990 | ))) { | |
1991 | ||
1992 | sw_stats->error_stats.network_sustained_ok++; | |
1993 | ||
1994 | writeq( | |
1995 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_OK, | |
1996 | &vp_reg->asic_ntwk_vp_err_mask); | |
1997 | ||
1998 | __vxge_hw_device_handle_link_up_ind(hldev); | |
a4fe91ee DM |
1999 | alarm_event = VXGE_HW_SET_LEVEL( |
2000 | VXGE_HW_EVENT_LINK_UP, alarm_event); | |
11324132 RV |
2001 | } |
2002 | ||
2003 | writeq(VXGE_HW_INTR_MASK_ALL, | |
2004 | &vp_reg->asic_ntwk_vp_err_reg); | |
2005 | ||
a4fe91ee DM |
2006 | alarm_event = VXGE_HW_SET_LEVEL( |
2007 | VXGE_HW_EVENT_ALARM_CLEARED, alarm_event); | |
11324132 RV |
2008 | |
2009 | if (skip_alarms) | |
2010 | return VXGE_HW_OK; | |
2011 | } | |
2012 | } | |
2013 | ||
2014 | if (alarm_status & VXGE_HW_VPATH_GENERAL_INT_STATUS_PIC_INT) { | |
2015 | ||
2016 | pic_status = readq(&vp_reg->vpath_ppif_int_status); | |
2017 | ||
2018 | if (pic_status & | |
2019 | VXGE_HW_VPATH_PPIF_INT_STATUS_GENERAL_ERRORS_GENERAL_INT) { | |
2020 | ||
2021 | val64 = readq(&vp_reg->general_errors_reg); | |
2022 | mask64 = readq(&vp_reg->general_errors_mask); | |
2023 | ||
2024 | if ((val64 & | |
2025 | VXGE_HW_GENERAL_ERRORS_REG_INI_SERR_DET) & | |
2026 | ~mask64) { | |
2027 | sw_stats->error_stats.ini_serr_det++; | |
2028 | ||
a4fe91ee DM |
2029 | alarm_event = VXGE_HW_SET_LEVEL( |
2030 | VXGE_HW_EVENT_SERR, alarm_event); | |
11324132 RV |
2031 | } |
2032 | ||
2033 | if ((val64 & | |
2034 | VXGE_HW_GENERAL_ERRORS_REG_DBLGEN_FIFO0_OVRFLOW) & | |
2035 | ~mask64) { | |
2036 | sw_stats->error_stats.dblgen_fifo0_overflow++; | |
2037 | ||
a4fe91ee DM |
2038 | alarm_event = VXGE_HW_SET_LEVEL( |
2039 | VXGE_HW_EVENT_FIFO_ERR, alarm_event); | |
11324132 RV |
2040 | } |
2041 | ||
2042 | if ((val64 & | |
2043 | VXGE_HW_GENERAL_ERRORS_REG_STATSB_PIF_CHAIN_ERR) & | |
2044 | ~mask64) | |
2045 | sw_stats->error_stats.statsb_pif_chain_error++; | |
2046 | ||
2047 | if ((val64 & | |
2048 | VXGE_HW_GENERAL_ERRORS_REG_STATSB_DROP_TIMEOUT_REQ) & | |
2049 | ~mask64) | |
2050 | sw_stats->error_stats.statsb_drop_timeout++; | |
2051 | ||
2052 | if ((val64 & | |
2053 | VXGE_HW_GENERAL_ERRORS_REG_TGT_ILLEGAL_ACCESS) & | |
2054 | ~mask64) | |
2055 | sw_stats->error_stats.target_illegal_access++; | |
2056 | ||
2057 | if (!skip_alarms) { | |
2058 | writeq(VXGE_HW_INTR_MASK_ALL, | |
2059 | &vp_reg->general_errors_reg); | |
a4fe91ee DM |
2060 | alarm_event = VXGE_HW_SET_LEVEL( |
2061 | VXGE_HW_EVENT_ALARM_CLEARED, | |
11324132 RV |
2062 | alarm_event); |
2063 | } | |
2064 | } | |
2065 | ||
2066 | if (pic_status & | |
2067 | VXGE_HW_VPATH_PPIF_INT_STATUS_KDFCCTL_ERRORS_KDFCCTL_INT) { | |
2068 | ||
2069 | val64 = readq(&vp_reg->kdfcctl_errors_reg); | |
2070 | mask64 = readq(&vp_reg->kdfcctl_errors_mask); | |
2071 | ||
2072 | if ((val64 & | |
2073 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO0_OVRWR) & | |
2074 | ~mask64) { | |
2075 | sw_stats->error_stats.kdfcctl_fifo0_overwrite++; | |
2076 | ||
a4fe91ee DM |
2077 | alarm_event = VXGE_HW_SET_LEVEL( |
2078 | VXGE_HW_EVENT_FIFO_ERR, | |
11324132 RV |
2079 | alarm_event); |
2080 | } | |
2081 | ||
2082 | if ((val64 & | |
2083 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO0_POISON) & | |
2084 | ~mask64) { | |
2085 | sw_stats->error_stats.kdfcctl_fifo0_poison++; | |
2086 | ||
a4fe91ee DM |
2087 | alarm_event = VXGE_HW_SET_LEVEL( |
2088 | VXGE_HW_EVENT_FIFO_ERR, | |
11324132 RV |
2089 | alarm_event); |
2090 | } | |
2091 | ||
2092 | if ((val64 & | |
2093 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO0_DMA_ERR) & | |
2094 | ~mask64) { | |
2095 | sw_stats->error_stats.kdfcctl_fifo0_dma_error++; | |
2096 | ||
a4fe91ee DM |
2097 | alarm_event = VXGE_HW_SET_LEVEL( |
2098 | VXGE_HW_EVENT_FIFO_ERR, | |
11324132 RV |
2099 | alarm_event); |
2100 | } | |
2101 | ||
2102 | if (!skip_alarms) { | |
2103 | writeq(VXGE_HW_INTR_MASK_ALL, | |
2104 | &vp_reg->kdfcctl_errors_reg); | |
a4fe91ee DM |
2105 | alarm_event = VXGE_HW_SET_LEVEL( |
2106 | VXGE_HW_EVENT_ALARM_CLEARED, | |
11324132 RV |
2107 | alarm_event); |
2108 | } | |
2109 | } | |
2110 | ||
2111 | } | |
2112 | ||
2113 | if (alarm_status & VXGE_HW_VPATH_GENERAL_INT_STATUS_WRDMA_INT) { | |
2114 | ||
2115 | val64 = readq(&vp_reg->wrdma_alarm_status); | |
2116 | ||
2117 | if (val64 & VXGE_HW_WRDMA_ALARM_STATUS_PRC_ALARM_PRC_INT) { | |
2118 | ||
2119 | val64 = readq(&vp_reg->prc_alarm_reg); | |
2120 | mask64 = readq(&vp_reg->prc_alarm_mask); | |
2121 | ||
2122 | if ((val64 & VXGE_HW_PRC_ALARM_REG_PRC_RING_BUMP)& | |
2123 | ~mask64) | |
2124 | sw_stats->error_stats.prc_ring_bumps++; | |
2125 | ||
2126 | if ((val64 & VXGE_HW_PRC_ALARM_REG_PRC_RXDCM_SC_ERR) & | |
2127 | ~mask64) { | |
2128 | sw_stats->error_stats.prc_rxdcm_sc_err++; | |
2129 | ||
a4fe91ee DM |
2130 | alarm_event = VXGE_HW_SET_LEVEL( |
2131 | VXGE_HW_EVENT_VPATH_ERR, | |
11324132 RV |
2132 | alarm_event); |
2133 | } | |
2134 | ||
2135 | if ((val64 & VXGE_HW_PRC_ALARM_REG_PRC_RXDCM_SC_ABORT) | |
2136 | & ~mask64) { | |
2137 | sw_stats->error_stats.prc_rxdcm_sc_abort++; | |
2138 | ||
a4fe91ee DM |
2139 | alarm_event = VXGE_HW_SET_LEVEL( |
2140 | VXGE_HW_EVENT_VPATH_ERR, | |
11324132 RV |
2141 | alarm_event); |
2142 | } | |
2143 | ||
2144 | if ((val64 & VXGE_HW_PRC_ALARM_REG_PRC_QUANTA_SIZE_ERR) | |
2145 | & ~mask64) { | |
2146 | sw_stats->error_stats.prc_quanta_size_err++; | |
2147 | ||
a4fe91ee DM |
2148 | alarm_event = VXGE_HW_SET_LEVEL( |
2149 | VXGE_HW_EVENT_VPATH_ERR, | |
11324132 RV |
2150 | alarm_event); |
2151 | } | |
2152 | ||
2153 | if (!skip_alarms) { | |
2154 | writeq(VXGE_HW_INTR_MASK_ALL, | |
2155 | &vp_reg->prc_alarm_reg); | |
a4fe91ee DM |
2156 | alarm_event = VXGE_HW_SET_LEVEL( |
2157 | VXGE_HW_EVENT_ALARM_CLEARED, | |
11324132 RV |
2158 | alarm_event); |
2159 | } | |
2160 | } | |
2161 | } | |
2162 | out: | |
2163 | hldev->stats.sw_dev_err_stats.vpath_alarms++; | |
4e204c10 | 2164 | out2: |
11324132 RV |
2165 | if ((alarm_event == VXGE_HW_EVENT_ALARM_CLEARED) || |
2166 | (alarm_event == VXGE_HW_EVENT_UNKNOWN)) | |
2167 | return VXGE_HW_OK; | |
2168 | ||
2169 | __vxge_hw_device_handle_error(hldev, vpath->vp_id, alarm_event); | |
2170 | ||
2171 | if (alarm_event == VXGE_HW_EVENT_SERR) | |
2172 | return VXGE_HW_ERR_CRITICAL; | |
2173 | ||
2174 | return (alarm_event == VXGE_HW_EVENT_SLOT_FREEZE) ? | |
2175 | VXGE_HW_ERR_SLOT_FREEZE : | |
2176 | (alarm_event == VXGE_HW_EVENT_FIFO_ERR) ? VXGE_HW_ERR_FIFO : | |
2177 | VXGE_HW_ERR_VPATH; | |
2178 | } | |
2179 | ||
2180 | /* | |
2181 | * vxge_hw_vpath_alarm_process - Process Alarms. | |
2182 | * @vpath: Virtual Path. | |
2183 | * @skip_alarms: Do not clear the alarms | |
2184 | * | |
2185 | * Process vpath alarms. | |
2186 | * | |
2187 | */ | |
2188 | enum vxge_hw_status vxge_hw_vpath_alarm_process( | |
2189 | struct __vxge_hw_vpath_handle *vp, | |
2190 | u32 skip_alarms) | |
2191 | { | |
2192 | enum vxge_hw_status status = VXGE_HW_OK; | |
2193 | ||
2194 | if (vp == NULL) { | |
2195 | status = VXGE_HW_ERR_INVALID_HANDLE; | |
2196 | goto exit; | |
2197 | } | |
2198 | ||
2199 | status = __vxge_hw_vpath_alarm_process(vp->vpath, skip_alarms); | |
2200 | exit: | |
2201 | return status; | |
2202 | } | |
2203 | ||
2204 | /** | |
2205 | * vxge_hw_vpath_msix_set - Associate MSIX vectors with TIM interrupts and | |
2206 | * alrms | |
2207 | * @vp: Virtual Path handle. | |
2208 | * @tim_msix_id: MSIX vectors associated with VXGE_HW_MAX_INTR_PER_VP number of | |
2209 | * interrupts(Can be repeated). If fifo or ring are not enabled | |
2210 | * the MSIX vector for that should be set to 0 | |
2211 | * @alarm_msix_id: MSIX vector for alarm. | |
2212 | * | |
2213 | * This API will associate a given MSIX vector numbers with the four TIM | |
2214 | * interrupts and alarm interrupt. | |
2215 | */ | |
2216 | enum vxge_hw_status | |
2217 | vxge_hw_vpath_msix_set(struct __vxge_hw_vpath_handle *vp, int *tim_msix_id, | |
2218 | int alarm_msix_id) | |
2219 | { | |
2220 | u64 val64; | |
2221 | struct __vxge_hw_virtualpath *vpath = vp->vpath; | |
2222 | struct vxge_hw_vpath_reg __iomem *vp_reg = vpath->vp_reg; | |
2223 | u32 first_vp_id = vpath->hldev->first_vp_id; | |
2224 | ||
2225 | val64 = VXGE_HW_INTERRUPT_CFG0_GROUP0_MSIX_FOR_TXTI( | |
2226 | (first_vp_id * 4) + tim_msix_id[0]) | | |
2227 | VXGE_HW_INTERRUPT_CFG0_GROUP1_MSIX_FOR_TXTI( | |
2228 | (first_vp_id * 4) + tim_msix_id[1]) | | |
2229 | VXGE_HW_INTERRUPT_CFG0_GROUP2_MSIX_FOR_TXTI( | |
2230 | (first_vp_id * 4) + tim_msix_id[2]); | |
2231 | ||
2232 | val64 |= VXGE_HW_INTERRUPT_CFG0_GROUP3_MSIX_FOR_TXTI( | |
2233 | (first_vp_id * 4) + tim_msix_id[3]); | |
2234 | ||
2235 | writeq(val64, &vp_reg->interrupt_cfg0); | |
2236 | ||
2237 | writeq(VXGE_HW_INTERRUPT_CFG2_ALARM_MAP_TO_MSG( | |
2238 | (first_vp_id * 4) + alarm_msix_id), | |
2239 | &vp_reg->interrupt_cfg2); | |
2240 | ||
2241 | if (vpath->hldev->config.intr_mode == | |
2242 | VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) { | |
2243 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn( | |
2244 | VXGE_HW_ONE_SHOT_VECT1_EN_ONE_SHOT_VECT1_EN, | |
2245 | 0, 32), &vp_reg->one_shot_vect1_en); | |
2246 | } | |
2247 | ||
2248 | if (vpath->hldev->config.intr_mode == | |
2249 | VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) { | |
2250 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn( | |
2251 | VXGE_HW_ONE_SHOT_VECT2_EN_ONE_SHOT_VECT2_EN, | |
2252 | 0, 32), &vp_reg->one_shot_vect2_en); | |
2253 | ||
2254 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn( | |
2255 | VXGE_HW_ONE_SHOT_VECT3_EN_ONE_SHOT_VECT3_EN, | |
2256 | 0, 32), &vp_reg->one_shot_vect3_en); | |
2257 | } | |
2258 | ||
2259 | return VXGE_HW_OK; | |
2260 | } | |
2261 | ||
2262 | /** | |
2263 | * vxge_hw_vpath_msix_mask - Mask MSIX Vector. | |
2264 | * @vp: Virtual Path handle. | |
2265 | * @msix_id: MSIX ID | |
2266 | * | |
2267 | * The function masks the msix interrupt for the given msix_id | |
2268 | * | |
2269 | * Returns: 0, | |
2270 | * Otherwise, VXGE_HW_ERR_WRONG_IRQ if the msix index is out of range | |
2271 | * status. | |
2272 | * See also: | |
2273 | */ | |
2274 | void | |
2275 | vxge_hw_vpath_msix_mask(struct __vxge_hw_vpath_handle *vp, int msix_id) | |
2276 | { | |
2277 | struct __vxge_hw_device *hldev = vp->vpath->hldev; | |
2278 | __vxge_hw_pio_mem_write32_upper( | |
2279 | (u32) vxge_bVALn(vxge_mBIT(hldev->first_vp_id + | |
2280 | (msix_id / 4)), 0, 32), | |
2281 | &hldev->common_reg->set_msix_mask_vect[msix_id % 4]); | |
2282 | ||
2283 | return; | |
2284 | } | |
2285 | ||
2286 | /** | |
2287 | * vxge_hw_vpath_msix_clear - Clear MSIX Vector. | |
2288 | * @vp: Virtual Path handle. | |
2289 | * @msix_id: MSI ID | |
2290 | * | |
2291 | * The function clears the msix interrupt for the given msix_id | |
2292 | * | |
2293 | * Returns: 0, | |
2294 | * Otherwise, VXGE_HW_ERR_WRONG_IRQ if the msix index is out of range | |
2295 | * status. | |
2296 | * See also: | |
2297 | */ | |
2298 | void | |
2299 | vxge_hw_vpath_msix_clear(struct __vxge_hw_vpath_handle *vp, int msix_id) | |
2300 | { | |
2301 | struct __vxge_hw_device *hldev = vp->vpath->hldev; | |
2302 | if (hldev->config.intr_mode == | |
2303 | VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) { | |
2304 | __vxge_hw_pio_mem_write32_upper( | |
2305 | (u32)vxge_bVALn(vxge_mBIT(hldev->first_vp_id + | |
2306 | (msix_id/4)), 0, 32), | |
2307 | &hldev->common_reg-> | |
2308 | clr_msix_one_shot_vec[msix_id%4]); | |
2309 | } else { | |
2310 | __vxge_hw_pio_mem_write32_upper( | |
2311 | (u32)vxge_bVALn(vxge_mBIT(hldev->first_vp_id + | |
2312 | (msix_id/4)), 0, 32), | |
2313 | &hldev->common_reg-> | |
2314 | clear_msix_mask_vect[msix_id%4]); | |
2315 | } | |
2316 | ||
2317 | return; | |
2318 | } | |
2319 | ||
2320 | /** | |
2321 | * vxge_hw_vpath_msix_unmask - Unmask the MSIX Vector. | |
2322 | * @vp: Virtual Path handle. | |
2323 | * @msix_id: MSI ID | |
2324 | * | |
2325 | * The function unmasks the msix interrupt for the given msix_id | |
2326 | * | |
2327 | * Returns: 0, | |
2328 | * Otherwise, VXGE_HW_ERR_WRONG_IRQ if the msix index is out of range | |
2329 | * status. | |
2330 | * See also: | |
2331 | */ | |
2332 | void | |
2333 | vxge_hw_vpath_msix_unmask(struct __vxge_hw_vpath_handle *vp, int msix_id) | |
2334 | { | |
2335 | struct __vxge_hw_device *hldev = vp->vpath->hldev; | |
2336 | __vxge_hw_pio_mem_write32_upper( | |
2337 | (u32)vxge_bVALn(vxge_mBIT(hldev->first_vp_id + | |
2338 | (msix_id/4)), 0, 32), | |
2339 | &hldev->common_reg->clear_msix_mask_vect[msix_id%4]); | |
2340 | ||
2341 | return; | |
2342 | } | |
2343 | ||
2344 | /** | |
2345 | * vxge_hw_vpath_msix_mask_all - Mask all MSIX vectors for the vpath. | |
2346 | * @vp: Virtual Path handle. | |
2347 | * | |
2348 | * The function masks all msix interrupt for the given vpath | |
2349 | * | |
2350 | */ | |
2351 | void | |
2352 | vxge_hw_vpath_msix_mask_all(struct __vxge_hw_vpath_handle *vp) | |
2353 | { | |
2354 | ||
2355 | __vxge_hw_pio_mem_write32_upper( | |
2356 | (u32)vxge_bVALn(vxge_mBIT(vp->vpath->vp_id), 0, 32), | |
2357 | &vp->vpath->hldev->common_reg->set_msix_mask_all_vect); | |
2358 | ||
2359 | return; | |
2360 | } | |
2361 | ||
2362 | /** | |
2363 | * vxge_hw_vpath_inta_mask_tx_rx - Mask Tx and Rx interrupts. | |
2364 | * @vp: Virtual Path handle. | |
2365 | * | |
2366 | * Mask Tx and Rx vpath interrupts. | |
2367 | * | |
2368 | * See also: vxge_hw_vpath_inta_mask_tx_rx() | |
2369 | */ | |
2370 | void vxge_hw_vpath_inta_mask_tx_rx(struct __vxge_hw_vpath_handle *vp) | |
2371 | { | |
2372 | u64 tim_int_mask0[4] = {[0 ...3] = 0}; | |
2373 | u32 tim_int_mask1[4] = {[0 ...3] = 0}; | |
2374 | u64 val64; | |
2375 | struct __vxge_hw_device *hldev = vp->vpath->hldev; | |
2376 | ||
2377 | VXGE_HW_DEVICE_TIM_INT_MASK_SET(tim_int_mask0, | |
2378 | tim_int_mask1, vp->vpath->vp_id); | |
2379 | ||
2380 | val64 = readq(&hldev->common_reg->tim_int_mask0); | |
2381 | ||
2382 | if ((tim_int_mask0[VXGE_HW_VPATH_INTR_TX] != 0) || | |
2383 | (tim_int_mask0[VXGE_HW_VPATH_INTR_RX] != 0)) { | |
2384 | writeq((tim_int_mask0[VXGE_HW_VPATH_INTR_TX] | | |
2385 | tim_int_mask0[VXGE_HW_VPATH_INTR_RX] | val64), | |
2386 | &hldev->common_reg->tim_int_mask0); | |
2387 | } | |
2388 | ||
2389 | val64 = readl(&hldev->common_reg->tim_int_mask1); | |
2390 | ||
2391 | if ((tim_int_mask1[VXGE_HW_VPATH_INTR_TX] != 0) || | |
2392 | (tim_int_mask1[VXGE_HW_VPATH_INTR_RX] != 0)) { | |
2393 | __vxge_hw_pio_mem_write32_upper( | |
2394 | (tim_int_mask1[VXGE_HW_VPATH_INTR_TX] | | |
2395 | tim_int_mask1[VXGE_HW_VPATH_INTR_RX] | val64), | |
2396 | &hldev->common_reg->tim_int_mask1); | |
2397 | } | |
2398 | ||
2399 | return; | |
2400 | } | |
2401 | ||
2402 | /** | |
2403 | * vxge_hw_vpath_inta_unmask_tx_rx - Unmask Tx and Rx interrupts. | |
2404 | * @vp: Virtual Path handle. | |
2405 | * | |
2406 | * Unmask Tx and Rx vpath interrupts. | |
2407 | * | |
2408 | * See also: vxge_hw_vpath_inta_mask_tx_rx() | |
2409 | */ | |
2410 | void vxge_hw_vpath_inta_unmask_tx_rx(struct __vxge_hw_vpath_handle *vp) | |
2411 | { | |
2412 | u64 tim_int_mask0[4] = {[0 ...3] = 0}; | |
2413 | u32 tim_int_mask1[4] = {[0 ...3] = 0}; | |
2414 | u64 val64; | |
2415 | struct __vxge_hw_device *hldev = vp->vpath->hldev; | |
2416 | ||
2417 | VXGE_HW_DEVICE_TIM_INT_MASK_SET(tim_int_mask0, | |
2418 | tim_int_mask1, vp->vpath->vp_id); | |
2419 | ||
2420 | val64 = readq(&hldev->common_reg->tim_int_mask0); | |
2421 | ||
2422 | if ((tim_int_mask0[VXGE_HW_VPATH_INTR_TX] != 0) || | |
2423 | (tim_int_mask0[VXGE_HW_VPATH_INTR_RX] != 0)) { | |
2424 | writeq((~(tim_int_mask0[VXGE_HW_VPATH_INTR_TX] | | |
2425 | tim_int_mask0[VXGE_HW_VPATH_INTR_RX])) & val64, | |
2426 | &hldev->common_reg->tim_int_mask0); | |
2427 | } | |
2428 | ||
2429 | if ((tim_int_mask1[VXGE_HW_VPATH_INTR_TX] != 0) || | |
2430 | (tim_int_mask1[VXGE_HW_VPATH_INTR_RX] != 0)) { | |
2431 | __vxge_hw_pio_mem_write32_upper( | |
2432 | (~(tim_int_mask1[VXGE_HW_VPATH_INTR_TX] | | |
2433 | tim_int_mask1[VXGE_HW_VPATH_INTR_RX])) & val64, | |
2434 | &hldev->common_reg->tim_int_mask1); | |
2435 | } | |
2436 | ||
2437 | return; | |
2438 | } | |
2439 | ||
2440 | /** | |
2441 | * vxge_hw_vpath_poll_rx - Poll Rx Virtual Path for completed | |
2442 | * descriptors and process the same. | |
2443 | * @ring: Handle to the ring object used for receive | |
2444 | * | |
2445 | * The function polls the Rx for the completed descriptors and calls | |
2446 | * the driver via supplied completion callback. | |
2447 | * | |
2448 | * Returns: VXGE_HW_OK, if the polling is completed successful. | |
2449 | * VXGE_HW_COMPLETIONS_REMAIN: There are still more completed | |
2450 | * descriptors available which are yet to be processed. | |
2451 | * | |
2452 | * See also: vxge_hw_vpath_poll_rx() | |
2453 | */ | |
2454 | enum vxge_hw_status vxge_hw_vpath_poll_rx(struct __vxge_hw_ring *ring) | |
2455 | { | |
2456 | u8 t_code; | |
2457 | enum vxge_hw_status status = VXGE_HW_OK; | |
2458 | void *first_rxdh; | |
2459 | u64 val64 = 0; | |
2460 | int new_count = 0; | |
2461 | ||
2462 | ring->cmpl_cnt = 0; | |
2463 | ||
2464 | status = vxge_hw_ring_rxd_next_completed(ring, &first_rxdh, &t_code); | |
2465 | if (status == VXGE_HW_OK) | |
2466 | ring->callback(ring, first_rxdh, | |
2467 | t_code, ring->channel.userdata); | |
2468 | ||
2469 | if (ring->cmpl_cnt != 0) { | |
2470 | ring->doorbell_cnt += ring->cmpl_cnt; | |
2471 | if (ring->doorbell_cnt >= ring->rxds_limit) { | |
2472 | /* | |
2473 | * Each RxD is of 4 qwords, update the number of | |
2474 | * qwords replenished | |
2475 | */ | |
2476 | new_count = (ring->doorbell_cnt * 4); | |
2477 | ||
2478 | /* For each block add 4 more qwords */ | |
2479 | ring->total_db_cnt += ring->doorbell_cnt; | |
2480 | if (ring->total_db_cnt >= ring->rxds_per_block) { | |
2481 | new_count += 4; | |
2482 | /* Reset total count */ | |
2483 | ring->total_db_cnt %= ring->rxds_per_block; | |
2484 | } | |
2485 | writeq(VXGE_HW_PRC_RXD_DOORBELL_NEW_QW_CNT(new_count), | |
2486 | &ring->vp_reg->prc_rxd_doorbell); | |
2487 | val64 = | |
2488 | readl(&ring->common_reg->titan_general_int_status); | |
2489 | ring->doorbell_cnt = 0; | |
2490 | } | |
2491 | } | |
2492 | ||
2493 | return status; | |
2494 | } | |
2495 | ||
2496 | /** | |
2497 | * vxge_hw_vpath_poll_tx - Poll Tx for completed descriptors and process | |
2498 | * the same. | |
2499 | * @fifo: Handle to the fifo object used for non offload send | |
2500 | * | |
2501 | * The function polls the Tx for the completed descriptors and calls | |
2502 | * the driver via supplied completion callback. | |
2503 | * | |
2504 | * Returns: VXGE_HW_OK, if the polling is completed successful. | |
2505 | * VXGE_HW_COMPLETIONS_REMAIN: There are still more completed | |
2506 | * descriptors available which are yet to be processed. | |
2507 | * | |
2508 | * See also: vxge_hw_vpath_poll_tx(). | |
2509 | */ | |
2510 | enum vxge_hw_status vxge_hw_vpath_poll_tx(struct __vxge_hw_fifo *fifo, | |
2511 | void **skb_ptr) | |
2512 | { | |
2513 | enum vxge_hw_fifo_tcode t_code; | |
2514 | void *first_txdlh; | |
2515 | enum vxge_hw_status status = VXGE_HW_OK; | |
2516 | struct __vxge_hw_channel *channel; | |
2517 | ||
2518 | channel = &fifo->channel; | |
2519 | ||
2520 | status = vxge_hw_fifo_txdl_next_completed(fifo, | |
2521 | &first_txdlh, &t_code); | |
2522 | if (status == VXGE_HW_OK) | |
2523 | if (fifo->callback(fifo, first_txdlh, | |
2524 | t_code, channel->userdata, skb_ptr) != VXGE_HW_OK) | |
2525 | status = VXGE_HW_COMPLETIONS_REMAIN; | |
2526 | ||
2527 | return status; | |
2528 | } |