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1 /*
2  * Copyright (c) 2005 Ammasso, Inc. All rights reserved.
3  * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
4  *
5  * This software is available to you under a choice of one of two
6  * licenses.  You may choose to be licensed under the terms of the GNU
7  * General Public License (GPL) Version 2, available from the file
8  * COPYING in the main directory of this source tree, or the
9  * OpenIB.org BSD license below:
10  *
11  *     Redistribution and use in source and binary forms, with or
12  *     without modification, are permitted provided that the following
13  *     conditions are met:
14  *
15  *      - Redistributions of source code must retain the above
16  *        copyright notice, this list of conditions and the following
17  *        disclaimer.
18  *
19  *      - Redistributions in binary form must reproduce the above
20  *        copyright notice, this list of conditions and the following
21  *        disclaimer in the documentation and/or other materials
22  *        provided with the distribution.
23  *
24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31  * SOFTWARE.
32  *
33  */
34 
35 
36 #include <linux/module.h>
37 #include <linux/moduleparam.h>
38 #include <linux/pci.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 #include <linux/delay.h>
42 #include <linux/ethtool.h>
43 #include <linux/mii.h>
44 #include <linux/if_vlan.h>
45 #include <linux/crc32.h>
46 #include <linux/in.h>
47 #include <linux/ip.h>
48 #include <linux/tcp.h>
49 #include <linux/init.h>
50 #include <linux/dma-mapping.h>
51 #include <linux/mm.h>
52 #include <linux/inet.h>
53 #include <linux/vmalloc.h>
54 #include <linux/slab.h>
55 
56 #include <linux/route.h>
57 
58 #include <asm/io.h>
59 #include <asm/irq.h>
60 #include <asm/byteorder.h>
61 #include <rdma/ib_smi.h>
62 #include "c2.h"
63 #include "c2_vq.h"
64 
65 /* Device capabilities */
66 #define C2_MIN_PAGESIZE  1024
67 
68 #define C2_MAX_MRS       32768
69 #define C2_MAX_QPS       16000
70 #define C2_MAX_WQE_SZ    256
71 #define C2_MAX_QP_WR     ((128*1024)/C2_MAX_WQE_SZ)
72 #define C2_MAX_SGES      4
73 #define C2_MAX_SGE_RD    1
74 #define C2_MAX_CQS       32768
75 #define C2_MAX_CQES      4096
76 #define C2_MAX_PDS       16384
77 
78 /*
79  * Send the adapter INIT message to the amso1100
80  */
c2_adapter_init(struct c2_dev * c2dev)81 static int c2_adapter_init(struct c2_dev *c2dev)
82 {
83 	struct c2wr_init_req wr;
84 	int err;
85 
86 	memset(&wr, 0, sizeof(wr));
87 	c2_wr_set_id(&wr, CCWR_INIT);
88 	wr.hdr.context = 0;
89 	wr.hint_count = cpu_to_be64(c2dev->hint_count_dma);
90 	wr.q0_host_shared = cpu_to_be64(c2dev->req_vq.shared_dma);
91 	wr.q1_host_shared = cpu_to_be64(c2dev->rep_vq.shared_dma);
92 	wr.q1_host_msg_pool = cpu_to_be64(c2dev->rep_vq.host_dma);
93 	wr.q2_host_shared = cpu_to_be64(c2dev->aeq.shared_dma);
94 	wr.q2_host_msg_pool = cpu_to_be64(c2dev->aeq.host_dma);
95 
96 	/* Post the init message */
97 	err = vq_send_wr(c2dev, (union c2wr *) & wr);
98 
99 	return err;
100 }
101 
102 /*
103  * Send the adapter TERM message to the amso1100
104  */
c2_adapter_term(struct c2_dev * c2dev)105 static void c2_adapter_term(struct c2_dev *c2dev)
106 {
107 	struct c2wr_init_req wr;
108 
109 	memset(&wr, 0, sizeof(wr));
110 	c2_wr_set_id(&wr, CCWR_TERM);
111 	wr.hdr.context = 0;
112 
113 	/* Post the init message */
114 	vq_send_wr(c2dev, (union c2wr *) & wr);
115 	c2dev->init = 0;
116 
117 	return;
118 }
119 
120 /*
121  * Query the adapter
122  */
c2_rnic_query(struct c2_dev * c2dev,struct ib_device_attr * props)123 static int c2_rnic_query(struct c2_dev *c2dev, struct ib_device_attr *props)
124 {
125 	struct c2_vq_req *vq_req;
126 	struct c2wr_rnic_query_req wr;
127 	struct c2wr_rnic_query_rep *reply;
128 	int err;
129 
130 	vq_req = vq_req_alloc(c2dev);
131 	if (!vq_req)
132 		return -ENOMEM;
133 
134 	c2_wr_set_id(&wr, CCWR_RNIC_QUERY);
135 	wr.hdr.context = (unsigned long) vq_req;
136 	wr.rnic_handle = c2dev->adapter_handle;
137 
138 	vq_req_get(c2dev, vq_req);
139 
140 	err = vq_send_wr(c2dev, (union c2wr *) &wr);
141 	if (err) {
142 		vq_req_put(c2dev, vq_req);
143 		goto bail1;
144 	}
145 
146 	err = vq_wait_for_reply(c2dev, vq_req);
147 	if (err)
148 		goto bail1;
149 
150 	reply =
151 	    (struct c2wr_rnic_query_rep *) (unsigned long) (vq_req->reply_msg);
152 	if (!reply)
153 		err = -ENOMEM;
154 	else
155 		err = c2_errno(reply);
156 	if (err)
157 		goto bail2;
158 
159 	props->fw_ver =
160 		((u64)be32_to_cpu(reply->fw_ver_major) << 32) |
161 		((be32_to_cpu(reply->fw_ver_minor) & 0xFFFF) << 16) |
162 		(be32_to_cpu(reply->fw_ver_patch) & 0xFFFF);
163 	memcpy(&props->sys_image_guid, c2dev->netdev->dev_addr, 6);
164 	props->max_mr_size         = 0xFFFFFFFF;
165 	props->page_size_cap       = ~(C2_MIN_PAGESIZE-1);
166 	props->vendor_id           = be32_to_cpu(reply->vendor_id);
167 	props->vendor_part_id      = be32_to_cpu(reply->part_number);
168 	props->hw_ver              = be32_to_cpu(reply->hw_version);
169 	props->max_qp              = be32_to_cpu(reply->max_qps);
170 	props->max_qp_wr           = be32_to_cpu(reply->max_qp_depth);
171 	props->device_cap_flags    = c2dev->device_cap_flags;
172 	props->max_sge             = C2_MAX_SGES;
173 	props->max_sge_rd          = C2_MAX_SGE_RD;
174 	props->max_cq              = be32_to_cpu(reply->max_cqs);
175 	props->max_cqe             = be32_to_cpu(reply->max_cq_depth);
176 	props->max_mr              = be32_to_cpu(reply->max_mrs);
177 	props->max_pd              = be32_to_cpu(reply->max_pds);
178 	props->max_qp_rd_atom      = be32_to_cpu(reply->max_qp_ird);
179 	props->max_ee_rd_atom      = 0;
180 	props->max_res_rd_atom     = be32_to_cpu(reply->max_global_ird);
181 	props->max_qp_init_rd_atom = be32_to_cpu(reply->max_qp_ord);
182 	props->max_ee_init_rd_atom = 0;
183 	props->atomic_cap          = IB_ATOMIC_NONE;
184 	props->max_ee              = 0;
185 	props->max_rdd             = 0;
186 	props->max_mw              = be32_to_cpu(reply->max_mws);
187 	props->max_raw_ipv6_qp     = 0;
188 	props->max_raw_ethy_qp     = 0;
189 	props->max_mcast_grp       = 0;
190 	props->max_mcast_qp_attach = 0;
191 	props->max_total_mcast_qp_attach = 0;
192 	props->max_ah              = 0;
193 	props->max_fmr             = 0;
194 	props->max_map_per_fmr     = 0;
195 	props->max_srq             = 0;
196 	props->max_srq_wr          = 0;
197 	props->max_srq_sge         = 0;
198 	props->max_pkeys           = 0;
199 	props->local_ca_ack_delay  = 0;
200 
201  bail2:
202 	vq_repbuf_free(c2dev, reply);
203 
204  bail1:
205 	vq_req_free(c2dev, vq_req);
206 	return err;
207 }
208 
209 /*
210  * Add an IP address to the RNIC interface
211  */
c2_add_addr(struct c2_dev * c2dev,__be32 inaddr,__be32 inmask)212 int c2_add_addr(struct c2_dev *c2dev, __be32 inaddr, __be32 inmask)
213 {
214 	struct c2_vq_req *vq_req;
215 	struct c2wr_rnic_setconfig_req *wr;
216 	struct c2wr_rnic_setconfig_rep *reply;
217 	struct c2_netaddr netaddr;
218 	int err, len;
219 
220 	vq_req = vq_req_alloc(c2dev);
221 	if (!vq_req)
222 		return -ENOMEM;
223 
224 	len = sizeof(struct c2_netaddr);
225 	wr = kmalloc(c2dev->req_vq.msg_size, GFP_KERNEL);
226 	if (!wr) {
227 		err = -ENOMEM;
228 		goto bail0;
229 	}
230 
231 	c2_wr_set_id(wr, CCWR_RNIC_SETCONFIG);
232 	wr->hdr.context = (unsigned long) vq_req;
233 	wr->rnic_handle = c2dev->adapter_handle;
234 	wr->option = cpu_to_be32(C2_CFG_ADD_ADDR);
235 
236 	netaddr.ip_addr = inaddr;
237 	netaddr.netmask = inmask;
238 	netaddr.mtu = 0;
239 
240 	memcpy(wr->data, &netaddr, len);
241 
242 	vq_req_get(c2dev, vq_req);
243 
244 	err = vq_send_wr(c2dev, (union c2wr *) wr);
245 	if (err) {
246 		vq_req_put(c2dev, vq_req);
247 		goto bail1;
248 	}
249 
250 	err = vq_wait_for_reply(c2dev, vq_req);
251 	if (err)
252 		goto bail1;
253 
254 	reply =
255 	    (struct c2wr_rnic_setconfig_rep *) (unsigned long) (vq_req->reply_msg);
256 	if (!reply) {
257 		err = -ENOMEM;
258 		goto bail1;
259 	}
260 
261 	err = c2_errno(reply);
262 	vq_repbuf_free(c2dev, reply);
263 
264       bail1:
265 	kfree(wr);
266       bail0:
267 	vq_req_free(c2dev, vq_req);
268 	return err;
269 }
270 
271 /*
272  * Delete an IP address from the RNIC interface
273  */
c2_del_addr(struct c2_dev * c2dev,__be32 inaddr,__be32 inmask)274 int c2_del_addr(struct c2_dev *c2dev, __be32 inaddr, __be32 inmask)
275 {
276 	struct c2_vq_req *vq_req;
277 	struct c2wr_rnic_setconfig_req *wr;
278 	struct c2wr_rnic_setconfig_rep *reply;
279 	struct c2_netaddr netaddr;
280 	int err, len;
281 
282 	vq_req = vq_req_alloc(c2dev);
283 	if (!vq_req)
284 		return -ENOMEM;
285 
286 	len = sizeof(struct c2_netaddr);
287 	wr = kmalloc(c2dev->req_vq.msg_size, GFP_KERNEL);
288 	if (!wr) {
289 		err = -ENOMEM;
290 		goto bail0;
291 	}
292 
293 	c2_wr_set_id(wr, CCWR_RNIC_SETCONFIG);
294 	wr->hdr.context = (unsigned long) vq_req;
295 	wr->rnic_handle = c2dev->adapter_handle;
296 	wr->option = cpu_to_be32(C2_CFG_DEL_ADDR);
297 
298 	netaddr.ip_addr = inaddr;
299 	netaddr.netmask = inmask;
300 	netaddr.mtu = 0;
301 
302 	memcpy(wr->data, &netaddr, len);
303 
304 	vq_req_get(c2dev, vq_req);
305 
306 	err = vq_send_wr(c2dev, (union c2wr *) wr);
307 	if (err) {
308 		vq_req_put(c2dev, vq_req);
309 		goto bail1;
310 	}
311 
312 	err = vq_wait_for_reply(c2dev, vq_req);
313 	if (err)
314 		goto bail1;
315 
316 	reply =
317 	    (struct c2wr_rnic_setconfig_rep *) (unsigned long) (vq_req->reply_msg);
318 	if (!reply) {
319 		err = -ENOMEM;
320 		goto bail1;
321 	}
322 
323 	err = c2_errno(reply);
324 	vq_repbuf_free(c2dev, reply);
325 
326       bail1:
327 	kfree(wr);
328       bail0:
329 	vq_req_free(c2dev, vq_req);
330 	return err;
331 }
332 
333 /*
334  * Open a single RNIC instance to use with all
335  * low level openib calls
336  */
c2_rnic_open(struct c2_dev * c2dev)337 static int c2_rnic_open(struct c2_dev *c2dev)
338 {
339 	struct c2_vq_req *vq_req;
340 	union c2wr wr;
341 	struct c2wr_rnic_open_rep *reply;
342 	int err;
343 
344 	vq_req = vq_req_alloc(c2dev);
345 	if (vq_req == NULL) {
346 		return -ENOMEM;
347 	}
348 
349 	memset(&wr, 0, sizeof(wr));
350 	c2_wr_set_id(&wr, CCWR_RNIC_OPEN);
351 	wr.rnic_open.req.hdr.context = (unsigned long) (vq_req);
352 	wr.rnic_open.req.flags = cpu_to_be16(RNIC_PRIV_MODE);
353 	wr.rnic_open.req.port_num = cpu_to_be16(0);
354 	wr.rnic_open.req.user_context = (unsigned long) c2dev;
355 
356 	vq_req_get(c2dev, vq_req);
357 
358 	err = vq_send_wr(c2dev, &wr);
359 	if (err) {
360 		vq_req_put(c2dev, vq_req);
361 		goto bail0;
362 	}
363 
364 	err = vq_wait_for_reply(c2dev, vq_req);
365 	if (err) {
366 		goto bail0;
367 	}
368 
369 	reply = (struct c2wr_rnic_open_rep *) (unsigned long) (vq_req->reply_msg);
370 	if (!reply) {
371 		err = -ENOMEM;
372 		goto bail0;
373 	}
374 
375 	if ((err = c2_errno(reply)) != 0) {
376 		goto bail1;
377 	}
378 
379 	c2dev->adapter_handle = reply->rnic_handle;
380 
381       bail1:
382 	vq_repbuf_free(c2dev, reply);
383       bail0:
384 	vq_req_free(c2dev, vq_req);
385 	return err;
386 }
387 
388 /*
389  * Close the RNIC instance
390  */
c2_rnic_close(struct c2_dev * c2dev)391 static int c2_rnic_close(struct c2_dev *c2dev)
392 {
393 	struct c2_vq_req *vq_req;
394 	union c2wr wr;
395 	struct c2wr_rnic_close_rep *reply;
396 	int err;
397 
398 	vq_req = vq_req_alloc(c2dev);
399 	if (vq_req == NULL) {
400 		return -ENOMEM;
401 	}
402 
403 	memset(&wr, 0, sizeof(wr));
404 	c2_wr_set_id(&wr, CCWR_RNIC_CLOSE);
405 	wr.rnic_close.req.hdr.context = (unsigned long) vq_req;
406 	wr.rnic_close.req.rnic_handle = c2dev->adapter_handle;
407 
408 	vq_req_get(c2dev, vq_req);
409 
410 	err = vq_send_wr(c2dev, &wr);
411 	if (err) {
412 		vq_req_put(c2dev, vq_req);
413 		goto bail0;
414 	}
415 
416 	err = vq_wait_for_reply(c2dev, vq_req);
417 	if (err) {
418 		goto bail0;
419 	}
420 
421 	reply = (struct c2wr_rnic_close_rep *) (unsigned long) (vq_req->reply_msg);
422 	if (!reply) {
423 		err = -ENOMEM;
424 		goto bail0;
425 	}
426 
427 	if ((err = c2_errno(reply)) != 0) {
428 		goto bail1;
429 	}
430 
431 	c2dev->adapter_handle = 0;
432 
433       bail1:
434 	vq_repbuf_free(c2dev, reply);
435       bail0:
436 	vq_req_free(c2dev, vq_req);
437 	return err;
438 }
439 
440 /*
441  * Called by c2_probe to initialize the RNIC. This principally
442  * involves initializing the various limits and resource pools that
443  * comprise the RNIC instance.
444  */
c2_rnic_init(struct c2_dev * c2dev)445 int c2_rnic_init(struct c2_dev *c2dev)
446 {
447 	int err;
448 	u32 qsize, msgsize;
449 	void *q1_pages;
450 	void *q2_pages;
451 	void __iomem *mmio_regs;
452 
453 	/* Device capabilities */
454 	c2dev->device_cap_flags =
455 	    (IB_DEVICE_RESIZE_MAX_WR |
456 	     IB_DEVICE_CURR_QP_STATE_MOD |
457 	     IB_DEVICE_SYS_IMAGE_GUID |
458 	     IB_DEVICE_LOCAL_DMA_LKEY |
459 	     IB_DEVICE_MEM_WINDOW);
460 
461 	/* Allocate the qptr_array */
462 	c2dev->qptr_array = vzalloc(C2_MAX_CQS * sizeof(void *));
463 	if (!c2dev->qptr_array) {
464 		return -ENOMEM;
465 	}
466 
467 	/* Initialize the qptr_array */
468 	c2dev->qptr_array[0] = (void *) &c2dev->req_vq;
469 	c2dev->qptr_array[1] = (void *) &c2dev->rep_vq;
470 	c2dev->qptr_array[2] = (void *) &c2dev->aeq;
471 
472 	/* Initialize data structures */
473 	init_waitqueue_head(&c2dev->req_vq_wo);
474 	spin_lock_init(&c2dev->vqlock);
475 	spin_lock_init(&c2dev->lock);
476 
477 	/* Allocate MQ shared pointer pool for kernel clients. User
478 	 * mode client pools are hung off the user context
479 	 */
480 	err = c2_init_mqsp_pool(c2dev, GFP_KERNEL, &c2dev->kern_mqsp_pool);
481 	if (err) {
482 		goto bail0;
483 	}
484 
485 	/* Allocate shared pointers for Q0, Q1, and Q2 from
486 	 * the shared pointer pool.
487 	 */
488 
489 	c2dev->hint_count = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool,
490 					     &c2dev->hint_count_dma,
491 					     GFP_KERNEL);
492 	c2dev->req_vq.shared = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool,
493 					     &c2dev->req_vq.shared_dma,
494 					     GFP_KERNEL);
495 	c2dev->rep_vq.shared = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool,
496 					     &c2dev->rep_vq.shared_dma,
497 					     GFP_KERNEL);
498 	c2dev->aeq.shared = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool,
499 					  &c2dev->aeq.shared_dma, GFP_KERNEL);
500 	if (!c2dev->hint_count || !c2dev->req_vq.shared ||
501 	    !c2dev->rep_vq.shared || !c2dev->aeq.shared) {
502 		err = -ENOMEM;
503 		goto bail1;
504 	}
505 
506 	mmio_regs = c2dev->kva;
507 	/* Initialize the Verbs Request Queue */
508 	c2_mq_req_init(&c2dev->req_vq, 0,
509 		       be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_Q0_QSIZE)),
510 		       be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_Q0_MSGSIZE)),
511 		       mmio_regs +
512 		       be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_Q0_POOLSTART)),
513 		       mmio_regs +
514 		       be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_Q0_SHARED)),
515 		       C2_MQ_ADAPTER_TARGET);
516 
517 	/* Initialize the Verbs Reply Queue */
518 	qsize = be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_Q1_QSIZE));
519 	msgsize = be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_Q1_MSGSIZE));
520 	q1_pages = dma_alloc_coherent(&c2dev->pcidev->dev, qsize * msgsize,
521 				      &c2dev->rep_vq.host_dma, GFP_KERNEL);
522 	if (!q1_pages) {
523 		err = -ENOMEM;
524 		goto bail1;
525 	}
526 	dma_unmap_addr_set(&c2dev->rep_vq, mapping, c2dev->rep_vq.host_dma);
527 	pr_debug("%s rep_vq va %p dma %llx\n", __func__, q1_pages,
528 		 (unsigned long long) c2dev->rep_vq.host_dma);
529 	c2_mq_rep_init(&c2dev->rep_vq,
530 		   1,
531 		   qsize,
532 		   msgsize,
533 		   q1_pages,
534 		   mmio_regs +
535 		   be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_Q1_SHARED)),
536 		   C2_MQ_HOST_TARGET);
537 
538 	/* Initialize the Asynchronus Event Queue */
539 	qsize = be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_Q2_QSIZE));
540 	msgsize = be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_Q2_MSGSIZE));
541 	q2_pages = dma_alloc_coherent(&c2dev->pcidev->dev, qsize * msgsize,
542 				      &c2dev->aeq.host_dma, GFP_KERNEL);
543 	if (!q2_pages) {
544 		err = -ENOMEM;
545 		goto bail2;
546 	}
547 	dma_unmap_addr_set(&c2dev->aeq, mapping, c2dev->aeq.host_dma);
548 	pr_debug("%s aeq va %p dma %llx\n", __func__, q2_pages,
549 		 (unsigned long long) c2dev->aeq.host_dma);
550 	c2_mq_rep_init(&c2dev->aeq,
551 		       2,
552 		       qsize,
553 		       msgsize,
554 		       q2_pages,
555 		       mmio_regs +
556 		       be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_Q2_SHARED)),
557 		       C2_MQ_HOST_TARGET);
558 
559 	/* Initialize the verbs request allocator */
560 	err = vq_init(c2dev);
561 	if (err)
562 		goto bail3;
563 
564 	/* Enable interrupts on the adapter */
565 	writel(0, c2dev->regs + C2_IDIS);
566 
567 	/* create the WR init message */
568 	err = c2_adapter_init(c2dev);
569 	if (err)
570 		goto bail4;
571 	c2dev->init++;
572 
573 	/* open an adapter instance */
574 	err = c2_rnic_open(c2dev);
575 	if (err)
576 		goto bail4;
577 
578 	/* Initialize cached the adapter limits */
579 	err = c2_rnic_query(c2dev, &c2dev->props);
580 	if (err)
581 		goto bail5;
582 
583 	/* Initialize the PD pool */
584 	err = c2_init_pd_table(c2dev);
585 	if (err)
586 		goto bail5;
587 
588 	/* Initialize the QP pool */
589 	c2_init_qp_table(c2dev);
590 	return 0;
591 
592       bail5:
593 	c2_rnic_close(c2dev);
594       bail4:
595 	vq_term(c2dev);
596       bail3:
597 	dma_free_coherent(&c2dev->pcidev->dev,
598 			  c2dev->aeq.q_size * c2dev->aeq.msg_size,
599 			  q2_pages, dma_unmap_addr(&c2dev->aeq, mapping));
600       bail2:
601 	dma_free_coherent(&c2dev->pcidev->dev,
602 			  c2dev->rep_vq.q_size * c2dev->rep_vq.msg_size,
603 			  q1_pages, dma_unmap_addr(&c2dev->rep_vq, mapping));
604       bail1:
605 	c2_free_mqsp_pool(c2dev, c2dev->kern_mqsp_pool);
606       bail0:
607 	vfree(c2dev->qptr_array);
608 
609 	return err;
610 }
611 
612 /*
613  * Called by c2_remove to cleanup the RNIC resources.
614  */
c2_rnic_term(struct c2_dev * c2dev)615 void c2_rnic_term(struct c2_dev *c2dev)
616 {
617 
618 	/* Close the open adapter instance */
619 	c2_rnic_close(c2dev);
620 
621 	/* Send the TERM message to the adapter */
622 	c2_adapter_term(c2dev);
623 
624 	/* Disable interrupts on the adapter */
625 	writel(1, c2dev->regs + C2_IDIS);
626 
627 	/* Free the QP pool */
628 	c2_cleanup_qp_table(c2dev);
629 
630 	/* Free the PD pool */
631 	c2_cleanup_pd_table(c2dev);
632 
633 	/* Free the verbs request allocator */
634 	vq_term(c2dev);
635 
636 	/* Free the asynchronus event queue */
637 	dma_free_coherent(&c2dev->pcidev->dev,
638 			  c2dev->aeq.q_size * c2dev->aeq.msg_size,
639 			  c2dev->aeq.msg_pool.host,
640 			  dma_unmap_addr(&c2dev->aeq, mapping));
641 
642 	/* Free the verbs reply queue */
643 	dma_free_coherent(&c2dev->pcidev->dev,
644 			  c2dev->rep_vq.q_size * c2dev->rep_vq.msg_size,
645 			  c2dev->rep_vq.msg_pool.host,
646 			  dma_unmap_addr(&c2dev->rep_vq, mapping));
647 
648 	/* Free the MQ shared pointer pool */
649 	c2_free_mqsp_pool(c2dev, c2dev->kern_mqsp_pool);
650 
651 	/* Free the qptr_array */
652 	vfree(c2dev->qptr_array);
653 
654 	return;
655 }
656