xref: /linux/drivers/scsi/be2iscsi/be_mgmt.c (revision 762f99f4f3cb41a775b5157dd761217beba65873)
1 /*
2  * This file is part of the Emulex Linux Device Driver for Enterprise iSCSI
3  * Host Bus Adapters. Refer to the README file included with this package
4  * for driver version and adapter compatibility.
5  *
6  * Copyright (c) 2018 Broadcom. All Rights Reserved.
7  * The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
8  *
9  * This program is free software; you can redistribute it and/or modify it
10  * under the terms of version 2 of the GNU General Public License as published
11  * by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful. ALL EXPRESS
14  * OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
15  * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
16  * OR NON-INFRINGEMENT, ARE DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH
17  * DISCLAIMERS ARE HELD TO BE LEGALLY INVALID.
18  * See the GNU General Public License for more details, a copy of which
19  * can be found in the file COPYING included with this package.
20  *
21  * Contact Information:
22  * linux-drivers@broadcom.com
23  *
24  */
25 
26 #include <linux/bsg-lib.h>
27 #include <scsi/scsi_transport_iscsi.h>
28 #include <scsi/scsi_bsg_iscsi.h>
29 #include "be_mgmt.h"
30 #include "be_iscsi.h"
31 #include "be_main.h"
32 
mgmt_vendor_specific_fw_cmd(struct be_ctrl_info * ctrl,struct beiscsi_hba * phba,struct bsg_job * job,struct be_dma_mem * nonemb_cmd)33 unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
34 					 struct beiscsi_hba *phba,
35 					 struct bsg_job *job,
36 					 struct be_dma_mem *nonemb_cmd)
37 {
38 	struct be_mcc_wrb *wrb;
39 	struct be_sge *mcc_sge;
40 	unsigned int tag = 0;
41 	struct iscsi_bsg_request *bsg_req = job->request;
42 	struct be_bsg_vendor_cmd *req = nonemb_cmd->va;
43 	unsigned short region, sector_size, sector, offset;
44 
45 	nonemb_cmd->size = job->request_payload.payload_len;
46 	memset(nonemb_cmd->va, 0, nonemb_cmd->size);
47 	region =  bsg_req->rqst_data.h_vendor.vendor_cmd[1];
48 	sector_size =  bsg_req->rqst_data.h_vendor.vendor_cmd[2];
49 	sector =  bsg_req->rqst_data.h_vendor.vendor_cmd[3];
50 	offset =  bsg_req->rqst_data.h_vendor.vendor_cmd[4];
51 	req->region = region;
52 	req->sector = sector;
53 	req->offset = offset;
54 
55 	if (mutex_lock_interruptible(&ctrl->mbox_lock))
56 		return 0;
57 	switch (bsg_req->rqst_data.h_vendor.vendor_cmd[0]) {
58 	case BEISCSI_WRITE_FLASH:
59 		offset = sector * sector_size + offset;
60 		be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
61 				   OPCODE_COMMON_WRITE_FLASH, sizeof(*req));
62 		sg_copy_to_buffer(job->request_payload.sg_list,
63 				  job->request_payload.sg_cnt,
64 				  nonemb_cmd->va + offset, job->request_len);
65 		break;
66 	case BEISCSI_READ_FLASH:
67 		be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
68 			   OPCODE_COMMON_READ_FLASH, sizeof(*req));
69 		break;
70 	default:
71 		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
72 			    "BG_%d : Unsupported cmd = 0x%x\n\n",
73 			    bsg_req->rqst_data.h_vendor.vendor_cmd[0]);
74 
75 		mutex_unlock(&ctrl->mbox_lock);
76 		return -EPERM;
77 	}
78 
79 	wrb = alloc_mcc_wrb(phba, &tag);
80 	if (!wrb) {
81 		mutex_unlock(&ctrl->mbox_lock);
82 		return 0;
83 	}
84 
85 	mcc_sge = nonembedded_sgl(wrb);
86 	be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false,
87 			   job->request_payload.sg_cnt);
88 	mcc_sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
89 	mcc_sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
90 	mcc_sge->len = cpu_to_le32(nonemb_cmd->size);
91 
92 	be_mcc_notify(phba, tag);
93 
94 	mutex_unlock(&ctrl->mbox_lock);
95 	return tag;
96 }
97 
98 /**
99  * mgmt_open_connection()- Establish a TCP CXN
100  * @phba: driver priv structure
101  * @dst_addr: Destination Address
102  * @beiscsi_ep: ptr to device endpoint struct
103  * @nonemb_cmd: ptr to memory allocated for command
104  *
105  * return
106  *	Success: Tag number of the MBX Command issued
107  *	Failure: Error code
108  **/
mgmt_open_connection(struct beiscsi_hba * phba,struct sockaddr * dst_addr,struct beiscsi_endpoint * beiscsi_ep,struct be_dma_mem * nonemb_cmd)109 int mgmt_open_connection(struct beiscsi_hba *phba,
110 			 struct sockaddr *dst_addr,
111 			 struct beiscsi_endpoint *beiscsi_ep,
112 			 struct be_dma_mem *nonemb_cmd)
113 {
114 	struct hwi_controller *phwi_ctrlr;
115 	struct hwi_context_memory *phwi_context;
116 	struct sockaddr_in *daddr_in = (struct sockaddr_in *)dst_addr;
117 	struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;
118 	struct be_ctrl_info *ctrl = &phba->ctrl;
119 	struct be_mcc_wrb *wrb;
120 	struct tcp_connect_and_offload_in_v1 *req;
121 	unsigned short def_hdr_id;
122 	unsigned short def_data_id;
123 	struct phys_addr template_address = { 0, 0 };
124 	struct phys_addr *ptemplate_address;
125 	unsigned int tag = 0;
126 	unsigned int i, ulp_num;
127 	unsigned short cid = beiscsi_ep->ep_cid;
128 	struct be_sge *sge;
129 
130 	if (dst_addr->sa_family != PF_INET && dst_addr->sa_family != PF_INET6) {
131 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
132 			    "BG_%d : unknown addr family %d\n",
133 			    dst_addr->sa_family);
134 		return 0;
135 	}
136 
137 	phwi_ctrlr = phba->phwi_ctrlr;
138 	phwi_context = phwi_ctrlr->phwi_ctxt;
139 
140 	ulp_num = phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID(cid)].ulp_num;
141 
142 	def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, ulp_num);
143 	def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, ulp_num);
144 
145 	ptemplate_address = &template_address;
146 	ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
147 	if (mutex_lock_interruptible(&ctrl->mbox_lock))
148 		return 0;
149 	wrb = alloc_mcc_wrb(phba, &tag);
150 	if (!wrb) {
151 		mutex_unlock(&ctrl->mbox_lock);
152 		return 0;
153 	}
154 
155 	sge = nonembedded_sgl(wrb);
156 	req = nonemb_cmd->va;
157 	memset(req, 0, sizeof(*req));
158 
159 	be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
160 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
161 			   OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
162 			   nonemb_cmd->size);
163 	if (dst_addr->sa_family == PF_INET) {
164 		__be32 s_addr = daddr_in->sin_addr.s_addr;
165 		req->ip_address.ip_type = BEISCSI_IP_TYPE_V4;
166 		req->ip_address.addr[0] = s_addr & 0x000000ff;
167 		req->ip_address.addr[1] = (s_addr & 0x0000ff00) >> 8;
168 		req->ip_address.addr[2] = (s_addr & 0x00ff0000) >> 16;
169 		req->ip_address.addr[3] = (s_addr & 0xff000000) >> 24;
170 		req->tcp_port = ntohs(daddr_in->sin_port);
171 		beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr;
172 		beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port);
173 		beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V4;
174 	} else {
175 		/* else its PF_INET6 family */
176 		req->ip_address.ip_type = BEISCSI_IP_TYPE_V6;
177 		memcpy(&req->ip_address.addr,
178 		       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
179 		req->tcp_port = ntohs(daddr_in6->sin6_port);
180 		beiscsi_ep->dst_tcpport = ntohs(daddr_in6->sin6_port);
181 		memcpy(&beiscsi_ep->dst6_addr,
182 		       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
183 		beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V6;
184 	}
185 	req->cid = cid;
186 	i = phba->nxt_cqid++;
187 	if (phba->nxt_cqid == phba->num_cpus)
188 		phba->nxt_cqid = 0;
189 	req->cq_id = phwi_context->be_cq[i].id;
190 	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
191 		    "BG_%d : i=%d cq_id=%d\n", i, req->cq_id);
192 	req->defq_id = def_hdr_id;
193 	req->hdr_ring_id = def_hdr_id;
194 	req->data_ring_id = def_data_id;
195 	req->do_offload = 1;
196 	req->dataout_template_pa.lo = ptemplate_address->lo;
197 	req->dataout_template_pa.hi = ptemplate_address->hi;
198 	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
199 	sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
200 	sge->len = cpu_to_le32(nonemb_cmd->size);
201 
202 	if (!is_chip_be2_be3r(phba)) {
203 		req->hdr.version = MBX_CMD_VER1;
204 		req->tcp_window_size = 0x8000;
205 		req->tcp_window_scale_count = 2;
206 	}
207 
208 	be_mcc_notify(phba, tag);
209 	mutex_unlock(&ctrl->mbox_lock);
210 	return tag;
211 }
212 
213 /**
214  * beiscsi_exec_nemb_cmd()- execute non-embedded MBX cmd
215  * @phba: driver priv structure
216  * @nonemb_cmd: DMA address of the MBX command to be issued
217  * @cbfn: callback func on MCC completion
218  * @resp_buf: buffer to copy the MBX cmd response
219  * @resp_buf_len: response length to be copied
220  *
221  **/
beiscsi_exec_nemb_cmd(struct beiscsi_hba * phba,struct be_dma_mem * nonemb_cmd,void (* cbfn)(struct beiscsi_hba *,unsigned int),void * resp_buf,u32 resp_buf_len)222 static int beiscsi_exec_nemb_cmd(struct beiscsi_hba *phba,
223 				 struct be_dma_mem *nonemb_cmd,
224 				 void (*cbfn)(struct beiscsi_hba *,
225 					      unsigned int),
226 				 void *resp_buf, u32 resp_buf_len)
227 {
228 	struct be_ctrl_info *ctrl = &phba->ctrl;
229 	struct be_mcc_wrb *wrb;
230 	struct be_sge *sge;
231 	unsigned int tag;
232 	int rc = 0;
233 
234 	mutex_lock(&ctrl->mbox_lock);
235 	wrb = alloc_mcc_wrb(phba, &tag);
236 	if (!wrb) {
237 		mutex_unlock(&ctrl->mbox_lock);
238 		return -ENOMEM;
239 	}
240 
241 	sge = nonembedded_sgl(wrb);
242 	be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
243 	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
244 	sge->pa_lo = cpu_to_le32(lower_32_bits(nonemb_cmd->dma));
245 	sge->len = cpu_to_le32(nonemb_cmd->size);
246 
247 	if (cbfn) {
248 		struct be_dma_mem *tag_mem;
249 
250 		set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
251 		ctrl->ptag_state[tag].cbfn = cbfn;
252 		tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state;
253 
254 		/* store DMA mem to be freed in callback */
255 		tag_mem->size = nonemb_cmd->size;
256 		tag_mem->va = nonemb_cmd->va;
257 		tag_mem->dma = nonemb_cmd->dma;
258 	}
259 	be_mcc_notify(phba, tag);
260 	mutex_unlock(&ctrl->mbox_lock);
261 
262 	/* with cbfn set, its async cmd, don't wait */
263 	if (cbfn)
264 		return 0;
265 
266 	rc = beiscsi_mccq_compl_wait(phba, tag, NULL, nonemb_cmd);
267 
268 	/* copy the response, if any */
269 	if (resp_buf)
270 		memcpy(resp_buf, nonemb_cmd->va, resp_buf_len);
271 	return rc;
272 }
273 
beiscsi_prep_nemb_cmd(struct beiscsi_hba * phba,struct be_dma_mem * cmd,u8 subsystem,u8 opcode,u32 size)274 static int beiscsi_prep_nemb_cmd(struct beiscsi_hba *phba,
275 				 struct be_dma_mem *cmd,
276 				 u8 subsystem, u8 opcode, u32 size)
277 {
278 	cmd->va = dma_alloc_coherent(&phba->ctrl.pdev->dev, size, &cmd->dma,
279 				     GFP_KERNEL);
280 	if (!cmd->va) {
281 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
282 			    "BG_%d : Failed to allocate memory for if info\n");
283 		return -ENOMEM;
284 	}
285 	cmd->size = size;
286 	be_cmd_hdr_prepare(cmd->va, subsystem, opcode, size);
287 	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
288 		    "BG_%d : subsystem %u cmd %u size %u\n",
289 		    subsystem, opcode, size);
290 	return 0;
291 }
292 
beiscsi_free_nemb_cmd(struct beiscsi_hba * phba,struct be_dma_mem * cmd,int rc)293 static void beiscsi_free_nemb_cmd(struct beiscsi_hba *phba,
294 				  struct be_dma_mem *cmd, int rc)
295 {
296 	/*
297 	 * If FW is busy the DMA buffer is saved with the tag. When the cmd
298 	 * completes this buffer is freed.
299 	 */
300 	if (rc == -EBUSY)
301 		return;
302 
303 	dma_free_coherent(&phba->ctrl.pdev->dev, cmd->size, cmd->va, cmd->dma);
304 }
305 
__beiscsi_eq_delay_compl(struct beiscsi_hba * phba,unsigned int tag)306 static void __beiscsi_eq_delay_compl(struct beiscsi_hba *phba, unsigned int tag)
307 {
308 	struct be_dma_mem *tag_mem;
309 
310 	/* status is ignored */
311 	__beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
312 	tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state;
313 	if (tag_mem->size) {
314 		dma_free_coherent(&phba->pcidev->dev, tag_mem->size,
315 				    tag_mem->va, tag_mem->dma);
316 		tag_mem->size = 0;
317 	}
318 }
319 
beiscsi_modify_eq_delay(struct beiscsi_hba * phba,struct be_set_eqd * set_eqd,int num)320 int beiscsi_modify_eq_delay(struct beiscsi_hba *phba,
321 			    struct be_set_eqd *set_eqd, int num)
322 {
323 	struct be_cmd_req_modify_eq_delay *req;
324 	struct be_dma_mem nonemb_cmd;
325 	int i, rc;
326 
327 	rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_COMMON,
328 			OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req));
329 	if (rc)
330 		return rc;
331 
332 	req = nonemb_cmd.va;
333 	req->num_eq = cpu_to_le32(num);
334 	for (i = 0; i < num; i++) {
335 		req->delay[i].eq_id = cpu_to_le32(set_eqd[i].eq_id);
336 		req->delay[i].phase = 0;
337 		req->delay[i].delay_multiplier =
338 				cpu_to_le32(set_eqd[i].delay_multiplier);
339 	}
340 
341 	rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, __beiscsi_eq_delay_compl,
342 				   NULL, 0);
343 	if (rc) {
344 		/*
345 		 * Only free on failure. Async cmds are handled like -EBUSY
346 		 * where it's handled for us.
347 		 */
348 		beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
349 	}
350 	return rc;
351 }
352 
353 /**
354  * beiscsi_get_initiator_name - read initiator name from flash
355  * @phba: device priv structure
356  * @name: buffer pointer
357  * @cfg: fetch user configured
358  *
359  */
beiscsi_get_initiator_name(struct beiscsi_hba * phba,char * name,bool cfg)360 int beiscsi_get_initiator_name(struct beiscsi_hba *phba, char *name, bool cfg)
361 {
362 	struct be_dma_mem nonemb_cmd;
363 	struct be_cmd_hba_name resp;
364 	struct be_cmd_hba_name *req;
365 	int rc;
366 
367 	rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI_INI,
368 			OPCODE_ISCSI_INI_CFG_GET_HBA_NAME, sizeof(resp));
369 	if (rc)
370 		return rc;
371 
372 	req = nonemb_cmd.va;
373 	if (cfg)
374 		req->hdr.version = 1;
375 	rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL,
376 				   &resp, sizeof(resp));
377 	beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
378 	if (rc) {
379 		beiscsi_log(phba, KERN_ERR,
380 			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
381 			    "BS_%d : Initiator Name MBX Failed\n");
382 		return rc;
383 	}
384 	rc = sprintf(name, "%s\n", resp.initiator_name);
385 	return rc;
386 }
387 
beiscsi_if_get_handle(struct beiscsi_hba * phba)388 unsigned int beiscsi_if_get_handle(struct beiscsi_hba *phba)
389 {
390 	struct be_ctrl_info *ctrl = &phba->ctrl;
391 	struct be_mcc_wrb *wrb;
392 	struct be_cmd_get_all_if_id_req *req;
393 	struct be_cmd_get_all_if_id_req *pbe_allid;
394 	unsigned int tag;
395 	int status = 0;
396 
397 	if (mutex_lock_interruptible(&ctrl->mbox_lock))
398 		return -EINTR;
399 	wrb = alloc_mcc_wrb(phba, &tag);
400 	if (!wrb) {
401 		mutex_unlock(&ctrl->mbox_lock);
402 		return -ENOMEM;
403 	}
404 
405 	req = embedded_payload(wrb);
406 	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
407 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
408 			   OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID,
409 			   sizeof(*req));
410 	be_mcc_notify(phba, tag);
411 	mutex_unlock(&ctrl->mbox_lock);
412 
413 	status = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
414 	if (status) {
415 		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
416 			    "BG_%d : %s failed: %d\n", __func__, status);
417 		return -EBUSY;
418 	}
419 
420 	pbe_allid = embedded_payload(wrb);
421 	/* we now support only one interface per function */
422 	phba->interface_handle = pbe_allid->if_hndl_list[0];
423 
424 	return status;
425 }
426 
beiscsi_if_zero_ip(u8 * ip,u32 ip_type)427 static inline bool beiscsi_if_zero_ip(u8 *ip, u32 ip_type)
428 {
429 	u32 len;
430 
431 	len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;
432 	while (len && !ip[len - 1])
433 		len--;
434 	return (len == 0);
435 }
436 
beiscsi_if_mod_gw(struct beiscsi_hba * phba,u32 action,u32 ip_type,u8 * gw)437 static int beiscsi_if_mod_gw(struct beiscsi_hba *phba,
438 			     u32 action, u32 ip_type, u8 *gw)
439 {
440 	struct be_cmd_set_def_gateway_req *req;
441 	struct be_dma_mem nonemb_cmd;
442 	int rt_val;
443 
444 	rt_val = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
445 			OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY,
446 			sizeof(*req));
447 	if (rt_val)
448 		return rt_val;
449 
450 	req = nonemb_cmd.va;
451 	req->action = action;
452 	req->ip_addr.ip_type = ip_type;
453 	memcpy(req->ip_addr.addr, gw,
454 	       (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN);
455 	rt_val = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
456 	beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rt_val);
457 	return rt_val;
458 }
459 
beiscsi_if_set_gw(struct beiscsi_hba * phba,u32 ip_type,u8 * gw)460 int beiscsi_if_set_gw(struct beiscsi_hba *phba, u32 ip_type, u8 *gw)
461 {
462 	struct be_cmd_get_def_gateway_resp gw_resp;
463 	int rt_val;
464 
465 	memset(&gw_resp, 0, sizeof(gw_resp));
466 	rt_val = beiscsi_if_get_gw(phba, ip_type, &gw_resp);
467 	if (rt_val) {
468 		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
469 			    "BG_%d : Failed to Get Gateway Addr\n");
470 		return rt_val;
471 	}
472 
473 	if (!beiscsi_if_zero_ip(gw_resp.ip_addr.addr, ip_type)) {
474 		rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_DEL, ip_type,
475 					   gw_resp.ip_addr.addr);
476 		if (rt_val) {
477 			beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
478 				    "BG_%d : Failed to clear Gateway Addr Set\n");
479 			return rt_val;
480 		}
481 	}
482 
483 	rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_ADD, ip_type, gw);
484 	if (rt_val)
485 		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
486 			    "BG_%d : Failed to Set Gateway Addr\n");
487 
488 	return rt_val;
489 }
490 
beiscsi_if_get_gw(struct beiscsi_hba * phba,u32 ip_type,struct be_cmd_get_def_gateway_resp * resp)491 int beiscsi_if_get_gw(struct beiscsi_hba *phba, u32 ip_type,
492 		      struct be_cmd_get_def_gateway_resp *resp)
493 {
494 	struct be_cmd_get_def_gateway_req *req;
495 	struct be_dma_mem nonemb_cmd;
496 	int rc;
497 
498 	rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
499 			OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY,
500 			sizeof(*resp));
501 	if (rc)
502 		return rc;
503 
504 	req = nonemb_cmd.va;
505 	req->ip_type = ip_type;
506 
507 	rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, resp,
508 				   sizeof(*resp));
509 	beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
510 	return rc;
511 }
512 
513 static int
beiscsi_if_clr_ip(struct beiscsi_hba * phba,struct be_cmd_get_if_info_resp * if_info)514 beiscsi_if_clr_ip(struct beiscsi_hba *phba,
515 		  struct be_cmd_get_if_info_resp *if_info)
516 {
517 	struct be_cmd_set_ip_addr_req *req;
518 	struct be_dma_mem nonemb_cmd;
519 	int rc;
520 
521 	rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
522 			OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
523 			sizeof(*req));
524 	if (rc)
525 		return rc;
526 
527 	req = nonemb_cmd.va;
528 	req->ip_params.record_entry_count = 1;
529 	req->ip_params.ip_record.action = IP_ACTION_DEL;
530 	req->ip_params.ip_record.interface_hndl =
531 		phba->interface_handle;
532 	req->ip_params.ip_record.ip_addr.size_of_structure =
533 		sizeof(struct be_ip_addr_subnet_format);
534 	req->ip_params.ip_record.ip_addr.ip_type = if_info->ip_addr.ip_type;
535 	memcpy(req->ip_params.ip_record.ip_addr.addr,
536 	       if_info->ip_addr.addr,
537 	       sizeof(if_info->ip_addr.addr));
538 	memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
539 	       if_info->ip_addr.subnet_mask,
540 	       sizeof(if_info->ip_addr.subnet_mask));
541 	rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
542 	if (rc < 0 || req->ip_params.ip_record.status) {
543 		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
544 			    "BG_%d : failed to clear IP: rc %d status %d\n",
545 			    rc, req->ip_params.ip_record.status);
546 	}
547 	beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
548 	return rc;
549 }
550 
551 static int
beiscsi_if_set_ip(struct beiscsi_hba * phba,u8 * ip,u8 * subnet,u32 ip_type)552 beiscsi_if_set_ip(struct beiscsi_hba *phba, u8 *ip,
553 		  u8 *subnet, u32 ip_type)
554 {
555 	struct be_cmd_set_ip_addr_req *req;
556 	struct be_dma_mem nonemb_cmd;
557 	uint32_t ip_len;
558 	int rc;
559 
560 	rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
561 			OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
562 			sizeof(*req));
563 	if (rc)
564 		return rc;
565 
566 	req = nonemb_cmd.va;
567 	req->ip_params.record_entry_count = 1;
568 	req->ip_params.ip_record.action = IP_ACTION_ADD;
569 	req->ip_params.ip_record.interface_hndl =
570 		phba->interface_handle;
571 	req->ip_params.ip_record.ip_addr.size_of_structure =
572 		sizeof(struct be_ip_addr_subnet_format);
573 	req->ip_params.ip_record.ip_addr.ip_type = ip_type;
574 	ip_len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;
575 	memcpy(req->ip_params.ip_record.ip_addr.addr, ip, ip_len);
576 	if (subnet)
577 		memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
578 		       subnet, ip_len);
579 
580 	rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
581 	/**
582 	 * In some cases, host needs to look into individual record status
583 	 * even though FW reported success for that IOCTL.
584 	 */
585 	if (rc < 0 || req->ip_params.ip_record.status) {
586 		__beiscsi_log(phba, KERN_ERR,
587 			    "BG_%d : failed to set IP: rc %d status %d\n",
588 			    rc, req->ip_params.ip_record.status);
589 		if (req->ip_params.ip_record.status)
590 			rc = -EINVAL;
591 	}
592 	beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
593 	return rc;
594 }
595 
beiscsi_if_en_static(struct beiscsi_hba * phba,u32 ip_type,u8 * ip,u8 * subnet)596 int beiscsi_if_en_static(struct beiscsi_hba *phba, u32 ip_type,
597 			 u8 *ip, u8 *subnet)
598 {
599 	struct be_cmd_get_if_info_resp *if_info;
600 	struct be_cmd_rel_dhcp_req *reldhcp;
601 	struct be_dma_mem nonemb_cmd;
602 	int rc;
603 
604 	rc = beiscsi_if_get_info(phba, ip_type, &if_info);
605 	if (rc)
606 		return rc;
607 
608 	if (if_info->dhcp_state) {
609 		rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd,
610 				CMD_SUBSYSTEM_ISCSI,
611 				OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR,
612 				sizeof(*reldhcp));
613 		if (rc)
614 			goto exit;
615 
616 		reldhcp = nonemb_cmd.va;
617 		reldhcp->interface_hndl = phba->interface_handle;
618 		reldhcp->ip_type = ip_type;
619 		rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
620 		beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
621 		if (rc < 0) {
622 			beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
623 				    "BG_%d : failed to release existing DHCP: %d\n",
624 				    rc);
625 			goto exit;
626 		}
627 	}
628 
629 	/* first delete any IP set */
630 	if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {
631 		rc = beiscsi_if_clr_ip(phba, if_info);
632 		if (rc)
633 			goto exit;
634 	}
635 
636 	/* if ip == NULL then this is called just to release DHCP IP */
637 	if (ip)
638 		rc = beiscsi_if_set_ip(phba, ip, subnet, ip_type);
639 exit:
640 	kfree(if_info);
641 	return rc;
642 }
643 
beiscsi_if_en_dhcp(struct beiscsi_hba * phba,u32 ip_type)644 int beiscsi_if_en_dhcp(struct beiscsi_hba *phba, u32 ip_type)
645 {
646 	struct be_cmd_get_def_gateway_resp gw_resp;
647 	struct be_cmd_get_if_info_resp *if_info;
648 	struct be_cmd_set_dhcp_req *dhcpreq;
649 	struct be_dma_mem nonemb_cmd;
650 	u8 *gw;
651 	int rc;
652 
653 	rc = beiscsi_if_get_info(phba, ip_type, &if_info);
654 	if (rc)
655 		return rc;
656 
657 	if (if_info->dhcp_state) {
658 		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
659 				"BG_%d : DHCP Already Enabled\n");
660 		goto exit;
661 	}
662 
663 	/* first delete any IP set */
664 	if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {
665 		rc = beiscsi_if_clr_ip(phba, if_info);
666 		if (rc)
667 			goto exit;
668 	}
669 
670 	/* delete gateway settings if mode change is to DHCP */
671 	memset(&gw_resp, 0, sizeof(gw_resp));
672 	/* use ip_type provided in if_info */
673 	rc = beiscsi_if_get_gw(phba, if_info->ip_addr.ip_type, &gw_resp);
674 	if (rc) {
675 		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
676 			    "BG_%d : Failed to Get Gateway Addr\n");
677 		goto exit;
678 	}
679 	gw = (u8 *)&gw_resp.ip_addr.addr;
680 	if (!beiscsi_if_zero_ip(gw, if_info->ip_addr.ip_type)) {
681 		rc = beiscsi_if_mod_gw(phba, IP_ACTION_DEL,
682 				       if_info->ip_addr.ip_type, gw);
683 		if (rc) {
684 			beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
685 				    "BG_%d : Failed to clear Gateway Addr Set\n");
686 			goto exit;
687 		}
688 	}
689 
690 	rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
691 			OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR,
692 			sizeof(*dhcpreq));
693 	if (rc)
694 		goto exit;
695 
696 	dhcpreq = nonemb_cmd.va;
697 	dhcpreq->flags = 1; /* 1 - blocking; 0 - non-blocking */
698 	dhcpreq->retry_count = 1;
699 	dhcpreq->interface_hndl = phba->interface_handle;
700 	dhcpreq->ip_type = ip_type;
701 	rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
702 	beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
703 exit:
704 	kfree(if_info);
705 	return rc;
706 }
707 
708 /**
709  * beiscsi_if_set_vlan()- Issue and wait for CMD completion
710  * @phba: device private structure instance
711  * @vlan_tag: VLAN tag
712  *
713  * Issue the MBX Cmd and wait for the completion of the
714  * command.
715  *
716  * returns
717  *	Success: 0
718  *	Failure: Non-Xero Value
719  **/
beiscsi_if_set_vlan(struct beiscsi_hba * phba,uint16_t vlan_tag)720 int beiscsi_if_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag)
721 {
722 	int rc;
723 	unsigned int tag;
724 
725 	tag = be_cmd_set_vlan(phba, vlan_tag);
726 	if (!tag) {
727 		beiscsi_log(phba, KERN_ERR,
728 			    (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
729 			    "BG_%d : VLAN Setting Failed\n");
730 		return -EBUSY;
731 	}
732 
733 	rc = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
734 	if (rc) {
735 		beiscsi_log(phba, KERN_ERR,
736 			    (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
737 			    "BS_%d : VLAN MBX Cmd Failed\n");
738 		return rc;
739 	}
740 	return rc;
741 }
742 
743 
beiscsi_if_get_info(struct beiscsi_hba * phba,int ip_type,struct be_cmd_get_if_info_resp ** if_info)744 int beiscsi_if_get_info(struct beiscsi_hba *phba, int ip_type,
745 			struct be_cmd_get_if_info_resp **if_info)
746 {
747 	struct be_cmd_get_if_info_req *req;
748 	struct be_dma_mem nonemb_cmd;
749 	uint32_t ioctl_size = sizeof(struct be_cmd_get_if_info_resp);
750 	int rc;
751 
752 	rc = beiscsi_if_get_handle(phba);
753 	if (rc)
754 		return rc;
755 
756 	do {
757 		rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd,
758 				CMD_SUBSYSTEM_ISCSI,
759 				OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO,
760 				ioctl_size);
761 		if (rc)
762 			return rc;
763 
764 		req = nonemb_cmd.va;
765 		req->interface_hndl = phba->interface_handle;
766 		req->ip_type = ip_type;
767 
768 		/* Allocate memory for if_info */
769 		*if_info = kzalloc(ioctl_size, GFP_KERNEL);
770 		if (!*if_info) {
771 			beiscsi_log(phba, KERN_ERR,
772 				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
773 				    "BG_%d : Memory Allocation Failure\n");
774 
775 				beiscsi_free_nemb_cmd(phba, &nonemb_cmd,
776 						      -ENOMEM);
777 				return -ENOMEM;
778 		}
779 
780 		rc =  beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, *if_info,
781 					    ioctl_size);
782 
783 		/* Check if the error is because of Insufficent_Buffer */
784 		if (rc == -EAGAIN) {
785 
786 			/* Get the new memory size */
787 			ioctl_size = ((struct be_cmd_resp_hdr *)
788 				      nonemb_cmd.va)->actual_resp_len;
789 			ioctl_size += sizeof(struct be_cmd_req_hdr);
790 
791 			beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
792 			/* Free the virtual memory */
793 			kfree(*if_info);
794 		} else {
795 			beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
796 			break;
797 		}
798 	} while (true);
799 	return rc;
800 }
801 
mgmt_get_nic_conf(struct beiscsi_hba * phba,struct be_cmd_get_nic_conf_resp * nic)802 int mgmt_get_nic_conf(struct beiscsi_hba *phba,
803 		      struct be_cmd_get_nic_conf_resp *nic)
804 {
805 	struct be_dma_mem nonemb_cmd;
806 	int rc;
807 
808 	rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
809 			OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
810 			sizeof(*nic));
811 	if (rc)
812 		return rc;
813 
814 	rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, nic, sizeof(*nic));
815 	beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
816 	return rc;
817 }
818 
beiscsi_boot_process_compl(struct beiscsi_hba * phba,unsigned int tag)819 static void beiscsi_boot_process_compl(struct beiscsi_hba *phba,
820 				       unsigned int tag)
821 {
822 	struct be_cmd_get_boot_target_resp *boot_resp;
823 	struct be_cmd_resp_logout_fw_sess *logo_resp;
824 	struct be_cmd_get_session_resp *sess_resp;
825 	struct be_mcc_wrb *wrb;
826 	struct boot_struct *bs;
827 	int boot_work, status;
828 
829 	if (!test_bit(BEISCSI_HBA_BOOT_WORK, &phba->state)) {
830 		__beiscsi_log(phba, KERN_ERR,
831 			      "BG_%d : %s no boot work %lx\n",
832 			      __func__, phba->state);
833 		return;
834 	}
835 
836 	if (phba->boot_struct.tag != tag) {
837 		__beiscsi_log(phba, KERN_ERR,
838 			      "BG_%d : %s tag mismatch %d:%d\n",
839 			      __func__, tag, phba->boot_struct.tag);
840 		return;
841 	}
842 	bs = &phba->boot_struct;
843 	boot_work = 1;
844 	status = 0;
845 	switch (bs->action) {
846 	case BEISCSI_BOOT_REOPEN_SESS:
847 		status = __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
848 		if (!status)
849 			bs->action = BEISCSI_BOOT_GET_SHANDLE;
850 		else
851 			bs->retry--;
852 		break;
853 	case BEISCSI_BOOT_GET_SHANDLE:
854 		status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);
855 		if (!status) {
856 			boot_resp = embedded_payload(wrb);
857 			bs->s_handle = boot_resp->boot_session_handle;
858 		}
859 		if (bs->s_handle == BE_BOOT_INVALID_SHANDLE) {
860 			bs->action = BEISCSI_BOOT_REOPEN_SESS;
861 			bs->retry--;
862 		} else {
863 			bs->action = BEISCSI_BOOT_GET_SINFO;
864 		}
865 		break;
866 	case BEISCSI_BOOT_GET_SINFO:
867 		status = __beiscsi_mcc_compl_status(phba, tag, NULL,
868 						    &bs->nonemb_cmd);
869 		if (!status) {
870 			sess_resp = bs->nonemb_cmd.va;
871 			memcpy(&bs->boot_sess, &sess_resp->session_info,
872 			       sizeof(struct mgmt_session_info));
873 			bs->action = BEISCSI_BOOT_LOGOUT_SESS;
874 		} else {
875 			__beiscsi_log(phba, KERN_ERR,
876 				      "BG_%d : get boot session info error : 0x%x\n",
877 				      status);
878 			boot_work = 0;
879 		}
880 		dma_free_coherent(&phba->ctrl.pdev->dev, bs->nonemb_cmd.size,
881 				    bs->nonemb_cmd.va, bs->nonemb_cmd.dma);
882 		bs->nonemb_cmd.va = NULL;
883 		break;
884 	case BEISCSI_BOOT_LOGOUT_SESS:
885 		status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);
886 		if (!status) {
887 			logo_resp = embedded_payload(wrb);
888 			if (logo_resp->session_status != BE_SESS_STATUS_CLOSE) {
889 				__beiscsi_log(phba, KERN_ERR,
890 					      "BG_%d : FW boot session logout error : 0x%x\n",
891 					      logo_resp->session_status);
892 			}
893 		}
894 		/* continue to create boot_kset even if logout failed? */
895 		bs->action = BEISCSI_BOOT_CREATE_KSET;
896 		break;
897 	default:
898 		break;
899 	}
900 
901 	/* clear the tag so no other completion matches this tag */
902 	bs->tag = 0;
903 	if (!bs->retry) {
904 		boot_work = 0;
905 		__beiscsi_log(phba, KERN_ERR,
906 			      "BG_%d : failed to setup boot target: status %d action %d\n",
907 			      status, bs->action);
908 	}
909 	if (!boot_work) {
910 		/* wait for next event to start boot_work */
911 		clear_bit(BEISCSI_HBA_BOOT_WORK, &phba->state);
912 		return;
913 	}
914 	schedule_work(&phba->boot_work);
915 }
916 
917 /**
918  * beiscsi_boot_logout_sess()- Logout from boot FW session
919  * @phba: Device priv structure instance
920  *
921  * return
922  *	the TAG used for MBOX Command
923  *
924  */
beiscsi_boot_logout_sess(struct beiscsi_hba * phba)925 unsigned int beiscsi_boot_logout_sess(struct beiscsi_hba *phba)
926 {
927 	struct be_ctrl_info *ctrl = &phba->ctrl;
928 	struct be_mcc_wrb *wrb;
929 	struct be_cmd_req_logout_fw_sess *req;
930 	unsigned int tag;
931 
932 	mutex_lock(&ctrl->mbox_lock);
933 	wrb = alloc_mcc_wrb(phba, &tag);
934 	if (!wrb) {
935 		mutex_unlock(&ctrl->mbox_lock);
936 		return 0;
937 	}
938 
939 	req = embedded_payload(wrb);
940 	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
941 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
942 			   OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET,
943 			   sizeof(struct be_cmd_req_logout_fw_sess));
944 	/* Use the session handle copied into boot_sess */
945 	req->session_handle = phba->boot_struct.boot_sess.session_handle;
946 
947 	phba->boot_struct.tag = tag;
948 	set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
949 	ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
950 
951 	be_mcc_notify(phba, tag);
952 	mutex_unlock(&ctrl->mbox_lock);
953 
954 	return tag;
955 }
956 /**
957  * beiscsi_boot_reopen_sess()- Reopen boot session
958  * @phba: Device priv structure instance
959  *
960  * return
961  *	the TAG used for MBOX Command
962  *
963  **/
beiscsi_boot_reopen_sess(struct beiscsi_hba * phba)964 unsigned int beiscsi_boot_reopen_sess(struct beiscsi_hba *phba)
965 {
966 	struct be_ctrl_info *ctrl = &phba->ctrl;
967 	struct be_mcc_wrb *wrb;
968 	struct be_cmd_reopen_session_req *req;
969 	unsigned int tag;
970 
971 	mutex_lock(&ctrl->mbox_lock);
972 	wrb = alloc_mcc_wrb(phba, &tag);
973 	if (!wrb) {
974 		mutex_unlock(&ctrl->mbox_lock);
975 		return 0;
976 	}
977 
978 	req = embedded_payload(wrb);
979 	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
980 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
981 			   OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS,
982 			   sizeof(struct be_cmd_reopen_session_resp));
983 	req->reopen_type = BE_REOPEN_BOOT_SESSIONS;
984 	req->session_handle = BE_BOOT_INVALID_SHANDLE;
985 
986 	phba->boot_struct.tag = tag;
987 	set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
988 	ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
989 
990 	be_mcc_notify(phba, tag);
991 	mutex_unlock(&ctrl->mbox_lock);
992 	return tag;
993 }
994 
995 
996 /**
997  * beiscsi_boot_get_sinfo()- Get boot session info
998  * @phba: device priv structure instance
999  *
1000  * Fetches the boot_struct.s_handle info from FW.
1001  * return
1002  *	the TAG used for MBOX Command
1003  *
1004  **/
beiscsi_boot_get_sinfo(struct beiscsi_hba * phba)1005 unsigned int beiscsi_boot_get_sinfo(struct beiscsi_hba *phba)
1006 {
1007 	struct be_ctrl_info *ctrl = &phba->ctrl;
1008 	struct be_cmd_get_session_req *req;
1009 	struct be_dma_mem *nonemb_cmd;
1010 	struct be_mcc_wrb *wrb;
1011 	struct be_sge *sge;
1012 	unsigned int tag;
1013 
1014 	mutex_lock(&ctrl->mbox_lock);
1015 	wrb = alloc_mcc_wrb(phba, &tag);
1016 	if (!wrb) {
1017 		mutex_unlock(&ctrl->mbox_lock);
1018 		return 0;
1019 	}
1020 
1021 	nonemb_cmd = &phba->boot_struct.nonemb_cmd;
1022 	nonemb_cmd->size = sizeof(struct be_cmd_get_session_resp);
1023 	nonemb_cmd->va = dma_alloc_coherent(&phba->ctrl.pdev->dev,
1024 					      nonemb_cmd->size,
1025 					      &nonemb_cmd->dma,
1026 					      GFP_KERNEL);
1027 	if (!nonemb_cmd->va) {
1028 		mutex_unlock(&ctrl->mbox_lock);
1029 		return 0;
1030 	}
1031 
1032 	req = nonemb_cmd->va;
1033 	memset(req, 0, sizeof(*req));
1034 	sge = nonembedded_sgl(wrb);
1035 	be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
1036 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
1037 			   OPCODE_ISCSI_INI_SESSION_GET_A_SESSION,
1038 			   sizeof(struct be_cmd_get_session_resp));
1039 	req->session_handle = phba->boot_struct.s_handle;
1040 	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
1041 	sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
1042 	sge->len = cpu_to_le32(nonemb_cmd->size);
1043 
1044 	phba->boot_struct.tag = tag;
1045 	set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
1046 	ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
1047 
1048 	be_mcc_notify(phba, tag);
1049 	mutex_unlock(&ctrl->mbox_lock);
1050 	return tag;
1051 }
1052 
__beiscsi_boot_get_shandle(struct beiscsi_hba * phba,int async)1053 unsigned int __beiscsi_boot_get_shandle(struct beiscsi_hba *phba, int async)
1054 {
1055 	struct be_ctrl_info *ctrl = &phba->ctrl;
1056 	struct be_mcc_wrb *wrb;
1057 	struct be_cmd_get_boot_target_req *req;
1058 	unsigned int tag;
1059 
1060 	mutex_lock(&ctrl->mbox_lock);
1061 	wrb = alloc_mcc_wrb(phba, &tag);
1062 	if (!wrb) {
1063 		mutex_unlock(&ctrl->mbox_lock);
1064 		return 0;
1065 	}
1066 
1067 	req = embedded_payload(wrb);
1068 	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
1069 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
1070 			   OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET,
1071 			   sizeof(struct be_cmd_get_boot_target_resp));
1072 
1073 	if (async) {
1074 		phba->boot_struct.tag = tag;
1075 		set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
1076 		ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
1077 	}
1078 
1079 	be_mcc_notify(phba, tag);
1080 	mutex_unlock(&ctrl->mbox_lock);
1081 	return tag;
1082 }
1083 
1084 /**
1085  * beiscsi_boot_get_shandle()- Get boot session handle
1086  * @phba: device priv structure instance
1087  * @s_handle: session handle returned for boot session.
1088  *
1089  * return
1090  *	Success: 1
1091  *	Failure: negative
1092  *
1093  **/
beiscsi_boot_get_shandle(struct beiscsi_hba * phba,unsigned int * s_handle)1094 int beiscsi_boot_get_shandle(struct beiscsi_hba *phba, unsigned int *s_handle)
1095 {
1096 	struct be_cmd_get_boot_target_resp *boot_resp;
1097 	struct be_mcc_wrb *wrb;
1098 	unsigned int tag;
1099 	int rc;
1100 
1101 	*s_handle = BE_BOOT_INVALID_SHANDLE;
1102 	/* get configured boot session count and handle */
1103 	tag = __beiscsi_boot_get_shandle(phba, 0);
1104 	if (!tag) {
1105 		beiscsi_log(phba, KERN_ERR,
1106 			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
1107 			    "BG_%d : Getting Boot Target Info Failed\n");
1108 		return -EAGAIN;
1109 	}
1110 
1111 	rc = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
1112 	if (rc) {
1113 		beiscsi_log(phba, KERN_ERR,
1114 			    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
1115 			    "BG_%d : MBX CMD get_boot_target Failed\n");
1116 		return -EBUSY;
1117 	}
1118 
1119 	boot_resp = embedded_payload(wrb);
1120 	/* check if there are any boot targets configured */
1121 	if (!boot_resp->boot_session_count) {
1122 		__beiscsi_log(phba, KERN_INFO,
1123 			      "BG_%d : No boot targets configured\n");
1124 		return -ENXIO;
1125 	}
1126 
1127 	/* only if FW has logged in to the boot target, s_handle is valid */
1128 	*s_handle = boot_resp->boot_session_handle;
1129 	return 1;
1130 }
1131 
1132 /**
1133  * beiscsi_drvr_ver_disp()- Display the driver Name and Version
1134  * @dev: ptr to device not used.
1135  * @attr: device attribute, not used.
1136  * @buf: contains formatted text driver name and version
1137  *
1138  * return
1139  * size of the formatted string
1140  **/
1141 ssize_t
beiscsi_drvr_ver_disp(struct device * dev,struct device_attribute * attr,char * buf)1142 beiscsi_drvr_ver_disp(struct device *dev, struct device_attribute *attr,
1143 		       char *buf)
1144 {
1145 	return snprintf(buf, PAGE_SIZE, BE_NAME "\n");
1146 }
1147 
1148 /**
1149  * beiscsi_fw_ver_disp()- Display Firmware Version
1150  * @dev: ptr to device not used.
1151  * @attr: device attribute, not used.
1152  * @buf: contains formatted text Firmware version
1153  *
1154  * return
1155  * size of the formatted string
1156  **/
1157 ssize_t
beiscsi_fw_ver_disp(struct device * dev,struct device_attribute * attr,char * buf)1158 beiscsi_fw_ver_disp(struct device *dev, struct device_attribute *attr,
1159 		     char *buf)
1160 {
1161 	struct Scsi_Host *shost = class_to_shost(dev);
1162 	struct beiscsi_hba *phba = iscsi_host_priv(shost);
1163 
1164 	return snprintf(buf, PAGE_SIZE, "%s\n", phba->fw_ver_str);
1165 }
1166 
1167 /**
1168  * beiscsi_active_session_disp()- Display Sessions Active
1169  * @dev: ptr to device not used.
1170  * @attr: device attribute, not used.
1171  * @buf: contains formatted text Session Count
1172  *
1173  * return
1174  * size of the formatted string
1175  **/
1176 ssize_t
beiscsi_active_session_disp(struct device * dev,struct device_attribute * attr,char * buf)1177 beiscsi_active_session_disp(struct device *dev, struct device_attribute *attr,
1178 			 char *buf)
1179 {
1180 	struct Scsi_Host *shost = class_to_shost(dev);
1181 	struct beiscsi_hba *phba = iscsi_host_priv(shost);
1182 	uint16_t avlbl_cids = 0, ulp_num, len = 0, total_cids = 0;
1183 
1184 	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
1185 		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
1186 			avlbl_cids = BEISCSI_ULP_AVLBL_CID(phba, ulp_num);
1187 			total_cids = BEISCSI_GET_CID_COUNT(phba, ulp_num);
1188 			len += scnprintf(buf+len, PAGE_SIZE - len,
1189 					 "ULP%d : %d\n", ulp_num,
1190 					 (total_cids - avlbl_cids));
1191 		} else
1192 			len += scnprintf(buf+len, PAGE_SIZE - len,
1193 					 "ULP%d : %d\n", ulp_num, 0);
1194 	}
1195 
1196 	return len;
1197 }
1198 
1199 /**
1200  * beiscsi_free_session_disp()- Display Avaliable Session
1201  * @dev: ptr to device not used.
1202  * @attr: device attribute, not used.
1203  * @buf: contains formatted text Session Count
1204  *
1205  * return
1206  * size of the formatted string
1207  **/
1208 ssize_t
beiscsi_free_session_disp(struct device * dev,struct device_attribute * attr,char * buf)1209 beiscsi_free_session_disp(struct device *dev, struct device_attribute *attr,
1210 		       char *buf)
1211 {
1212 	struct Scsi_Host *shost = class_to_shost(dev);
1213 	struct beiscsi_hba *phba = iscsi_host_priv(shost);
1214 	uint16_t ulp_num, len = 0;
1215 
1216 	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
1217 		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported))
1218 			len += scnprintf(buf+len, PAGE_SIZE - len,
1219 					 "ULP%d : %d\n", ulp_num,
1220 					 BEISCSI_ULP_AVLBL_CID(phba, ulp_num));
1221 		else
1222 			len += scnprintf(buf+len, PAGE_SIZE - len,
1223 					 "ULP%d : %d\n", ulp_num, 0);
1224 	}
1225 
1226 	return len;
1227 }
1228 
1229 /**
1230  * beiscsi_adap_family_disp()- Display adapter family.
1231  * @dev: ptr to device to get priv structure
1232  * @attr: device attribute, not used.
1233  * @buf: contains formatted text driver name and version
1234  *
1235  * return
1236  * size of the formatted string
1237  **/
1238 ssize_t
beiscsi_adap_family_disp(struct device * dev,struct device_attribute * attr,char * buf)1239 beiscsi_adap_family_disp(struct device *dev, struct device_attribute *attr,
1240 			  char *buf)
1241 {
1242 	uint16_t dev_id = 0;
1243 	struct Scsi_Host *shost = class_to_shost(dev);
1244 	struct beiscsi_hba *phba = iscsi_host_priv(shost);
1245 
1246 	dev_id = phba->pcidev->device;
1247 	switch (dev_id) {
1248 	case BE_DEVICE_ID1:
1249 	case OC_DEVICE_ID1:
1250 	case OC_DEVICE_ID2:
1251 		return snprintf(buf, PAGE_SIZE,
1252 				"Obsolete/Unsupported BE2 Adapter Family\n");
1253 	case BE_DEVICE_ID2:
1254 	case OC_DEVICE_ID3:
1255 		return snprintf(buf, PAGE_SIZE, "BE3-R Adapter Family\n");
1256 	case OC_SKH_ID1:
1257 		return snprintf(buf, PAGE_SIZE, "Skyhawk-R Adapter Family\n");
1258 	default:
1259 		return snprintf(buf, PAGE_SIZE,
1260 				"Unknown Adapter Family: 0x%x\n", dev_id);
1261 	}
1262 }
1263 
1264 /**
1265  * beiscsi_phys_port_disp()- Display Physical Port Identifier
1266  * @dev: ptr to device not used.
1267  * @attr: device attribute, not used.
1268  * @buf: contains formatted text port identifier
1269  *
1270  * return
1271  * size of the formatted string
1272  **/
1273 ssize_t
beiscsi_phys_port_disp(struct device * dev,struct device_attribute * attr,char * buf)1274 beiscsi_phys_port_disp(struct device *dev, struct device_attribute *attr,
1275 			 char *buf)
1276 {
1277 	struct Scsi_Host *shost = class_to_shost(dev);
1278 	struct beiscsi_hba *phba = iscsi_host_priv(shost);
1279 
1280 	return snprintf(buf, PAGE_SIZE, "Port Identifier : %u\n",
1281 			phba->fw_config.phys_port);
1282 }
1283 
beiscsi_offload_cxn_v0(struct beiscsi_offload_params * params,struct wrb_handle * pwrb_handle,struct be_mem_descriptor * mem_descr,struct hwi_wrb_context * pwrb_context)1284 void beiscsi_offload_cxn_v0(struct beiscsi_offload_params *params,
1285 			     struct wrb_handle *pwrb_handle,
1286 			     struct be_mem_descriptor *mem_descr,
1287 			     struct hwi_wrb_context *pwrb_context)
1288 {
1289 	struct iscsi_wrb *pwrb = pwrb_handle->pwrb;
1290 
1291 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1292 		      max_send_data_segment_length, pwrb,
1293 		      params->dw[offsetof(struct amap_beiscsi_offload_params,
1294 		      max_send_data_segment_length) / 32]);
1295 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb,
1296 		      BE_TGT_CTX_UPDT_CMD);
1297 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1298 		      first_burst_length,
1299 		      pwrb,
1300 		      params->dw[offsetof(struct amap_beiscsi_offload_params,
1301 		      first_burst_length) / 32]);
1302 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb,
1303 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1304 		      erl) / 32] & OFFLD_PARAMS_ERL));
1305 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb,
1306 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1307 		       dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
1308 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb,
1309 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1310 		      hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
1311 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb,
1312 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1313 		      ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
1314 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb,
1315 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1316 		      imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
1317 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn,
1318 		      pwrb,
1319 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1320 		      exp_statsn) / 32] + 1));
1321 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx,
1322 		      pwrb, pwrb_handle->wrb_index);
1323 
1324 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1325 		      max_burst_length, pwrb, params->dw[offsetof
1326 		      (struct amap_beiscsi_offload_params,
1327 		      max_burst_length) / 32]);
1328 
1329 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb,
1330 		      pwrb, pwrb_handle->wrb_index);
1331 	if (pwrb_context->plast_wrb)
1332 		AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1333 			      ptr2nextwrb,
1334 			      pwrb_context->plast_wrb,
1335 			      pwrb_handle->wrb_index);
1336 	pwrb_context->plast_wrb = pwrb;
1337 
1338 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1339 		      session_state, pwrb, 0);
1340 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack,
1341 		      pwrb, 1);
1342 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq,
1343 		      pwrb, 0);
1344 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb,
1345 		      0);
1346 
1347 	mem_descr += ISCSI_MEM_GLOBAL_HEADER;
1348 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1349 		      pad_buffer_addr_hi, pwrb,
1350 		      mem_descr->mem_array[0].bus_address.u.a32.address_hi);
1351 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1352 		      pad_buffer_addr_lo, pwrb,
1353 		      mem_descr->mem_array[0].bus_address.u.a32.address_lo);
1354 }
1355 
beiscsi_offload_cxn_v2(struct beiscsi_offload_params * params,struct wrb_handle * pwrb_handle,struct hwi_wrb_context * pwrb_context)1356 void beiscsi_offload_cxn_v2(struct beiscsi_offload_params *params,
1357 			     struct wrb_handle *pwrb_handle,
1358 			     struct hwi_wrb_context *pwrb_context)
1359 {
1360 	struct iscsi_wrb *pwrb = pwrb_handle->pwrb;
1361 
1362 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1363 		      max_burst_length, pwrb, params->dw[offsetof
1364 		      (struct amap_beiscsi_offload_params,
1365 		      max_burst_length) / 32]);
1366 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1367 		      type, pwrb,
1368 		      BE_TGT_CTX_UPDT_CMD);
1369 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1370 		      ptr2nextwrb,
1371 		      pwrb, pwrb_handle->wrb_index);
1372 	if (pwrb_context->plast_wrb)
1373 		AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1374 			      ptr2nextwrb,
1375 			      pwrb_context->plast_wrb,
1376 			      pwrb_handle->wrb_index);
1377 	pwrb_context->plast_wrb = pwrb;
1378 
1379 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, wrb_idx,
1380 		      pwrb, pwrb_handle->wrb_index);
1381 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1382 		      max_send_data_segment_length, pwrb,
1383 		      params->dw[offsetof(struct amap_beiscsi_offload_params,
1384 		      max_send_data_segment_length) / 32]);
1385 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1386 		      first_burst_length, pwrb,
1387 		      params->dw[offsetof(struct amap_beiscsi_offload_params,
1388 		      first_burst_length) / 32]);
1389 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1390 		      max_recv_dataseg_len, pwrb,
1391 		      params->dw[offsetof(struct amap_beiscsi_offload_params,
1392 		      max_recv_data_segment_length) / 32]);
1393 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1394 		      max_cxns, pwrb, BEISCSI_MAX_CXNS);
1395 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, erl, pwrb,
1396 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1397 		      erl) / 32] & OFFLD_PARAMS_ERL));
1398 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, dde, pwrb,
1399 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1400 		      dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
1401 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, hde, pwrb,
1402 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1403 		      hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
1404 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1405 		      ir2t, pwrb,
1406 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1407 		      ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
1408 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, imd, pwrb,
1409 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1410 		      imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
1411 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1412 		      data_seq_inorder,
1413 		      pwrb,
1414 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1415 		      data_seq_inorder) / 32] &
1416 		      OFFLD_PARAMS_DATA_SEQ_INORDER) >> 6);
1417 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1418 		      pdu_seq_inorder,
1419 		      pwrb,
1420 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1421 		      pdu_seq_inorder) / 32] &
1422 		      OFFLD_PARAMS_PDU_SEQ_INORDER) >> 7);
1423 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, max_r2t,
1424 		      pwrb,
1425 		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1426 		      max_r2t) / 32] &
1427 		      OFFLD_PARAMS_MAX_R2T) >> 8);
1428 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, stat_sn,
1429 		      pwrb,
1430 		     (params->dw[offsetof(struct amap_beiscsi_offload_params,
1431 		      exp_statsn) / 32] + 1));
1432 }
1433 
beiscsi_invalidate_cxn(struct beiscsi_hba * phba,struct beiscsi_endpoint * beiscsi_ep)1434 unsigned int beiscsi_invalidate_cxn(struct beiscsi_hba *phba,
1435 				    struct beiscsi_endpoint *beiscsi_ep)
1436 {
1437 	struct be_invalidate_connection_params_in *req;
1438 	struct be_ctrl_info *ctrl = &phba->ctrl;
1439 	struct be_mcc_wrb *wrb;
1440 	unsigned int tag = 0;
1441 
1442 	mutex_lock(&ctrl->mbox_lock);
1443 	wrb = alloc_mcc_wrb(phba, &tag);
1444 	if (!wrb) {
1445 		mutex_unlock(&ctrl->mbox_lock);
1446 		return 0;
1447 	}
1448 
1449 	req = embedded_payload(wrb);
1450 	be_wrb_hdr_prepare(wrb, sizeof(union be_invalidate_connection_params),
1451 			   true, 0);
1452 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
1453 			   OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION,
1454 			   sizeof(*req));
1455 	req->session_handle = beiscsi_ep->fw_handle;
1456 	req->cid = beiscsi_ep->ep_cid;
1457 	if (beiscsi_ep->conn)
1458 		req->cleanup_type = BE_CLEANUP_TYPE_INVALIDATE;
1459 	else
1460 		req->cleanup_type = BE_CLEANUP_TYPE_ISSUE_TCP_RST;
1461 	/**
1462 	 * 0 - non-persistent targets
1463 	 * 1 - save session info on flash
1464 	 */
1465 	req->save_cfg = 0;
1466 	be_mcc_notify(phba, tag);
1467 	mutex_unlock(&ctrl->mbox_lock);
1468 	return tag;
1469 }
1470 
beiscsi_upload_cxn(struct beiscsi_hba * phba,struct beiscsi_endpoint * beiscsi_ep)1471 unsigned int beiscsi_upload_cxn(struct beiscsi_hba *phba,
1472 				struct beiscsi_endpoint *beiscsi_ep)
1473 {
1474 	struct be_ctrl_info *ctrl = &phba->ctrl;
1475 	struct be_mcc_wrb *wrb;
1476 	struct be_tcp_upload_params_in *req;
1477 	unsigned int tag;
1478 
1479 	mutex_lock(&ctrl->mbox_lock);
1480 	wrb = alloc_mcc_wrb(phba, &tag);
1481 	if (!wrb) {
1482 		mutex_unlock(&ctrl->mbox_lock);
1483 		return 0;
1484 	}
1485 
1486 	req = embedded_payload(wrb);
1487 	be_wrb_hdr_prepare(wrb, sizeof(union be_tcp_upload_params), true, 0);
1488 	be_cmd_hdr_prepare(&req->hdr, CMD_COMMON_TCP_UPLOAD,
1489 			   OPCODE_COMMON_TCP_UPLOAD, sizeof(*req));
1490 	req->id = beiscsi_ep->ep_cid;
1491 	if (beiscsi_ep->conn)
1492 		req->upload_type = BE_UPLOAD_TYPE_GRACEFUL;
1493 	else
1494 		req->upload_type = BE_UPLOAD_TYPE_ABORT;
1495 	be_mcc_notify(phba, tag);
1496 	mutex_unlock(&ctrl->mbox_lock);
1497 	return tag;
1498 }
1499 
beiscsi_mgmt_invalidate_icds(struct beiscsi_hba * phba,struct invldt_cmd_tbl * inv_tbl,unsigned int nents)1500 int beiscsi_mgmt_invalidate_icds(struct beiscsi_hba *phba,
1501 				 struct invldt_cmd_tbl *inv_tbl,
1502 				 unsigned int nents)
1503 {
1504 	struct be_ctrl_info *ctrl = &phba->ctrl;
1505 	struct invldt_cmds_params_in *req;
1506 	struct be_dma_mem nonemb_cmd;
1507 	struct be_mcc_wrb *wrb;
1508 	unsigned int i, tag;
1509 	struct be_sge *sge;
1510 	int rc;
1511 
1512 	if (!nents || nents > BE_INVLDT_CMD_TBL_SZ)
1513 		return -EINVAL;
1514 
1515 	nonemb_cmd.size = sizeof(union be_invldt_cmds_params);
1516 	nonemb_cmd.va = dma_alloc_coherent(&phba->ctrl.pdev->dev,
1517 					   nonemb_cmd.size, &nonemb_cmd.dma,
1518 					   GFP_KERNEL);
1519 	if (!nonemb_cmd.va) {
1520 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
1521 			    "BM_%d : invldt_cmds_params alloc failed\n");
1522 		return -ENOMEM;
1523 	}
1524 
1525 	mutex_lock(&ctrl->mbox_lock);
1526 	wrb = alloc_mcc_wrb(phba, &tag);
1527 	if (!wrb) {
1528 		mutex_unlock(&ctrl->mbox_lock);
1529 		dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
1530 				    nonemb_cmd.va, nonemb_cmd.dma);
1531 		return -ENOMEM;
1532 	}
1533 
1534 	req = nonemb_cmd.va;
1535 	be_wrb_hdr_prepare(wrb, nonemb_cmd.size, false, 1);
1536 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
1537 			OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS,
1538 			sizeof(*req));
1539 	req->ref_handle = 0;
1540 	req->cleanup_type = CMD_ISCSI_COMMAND_INVALIDATE;
1541 	for (i = 0; i < nents; i++) {
1542 		req->table[i].icd = inv_tbl[i].icd;
1543 		req->table[i].cid = inv_tbl[i].cid;
1544 		req->icd_count++;
1545 	}
1546 	sge = nonembedded_sgl(wrb);
1547 	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
1548 	sge->pa_lo = cpu_to_le32(lower_32_bits(nonemb_cmd.dma));
1549 	sge->len = cpu_to_le32(nonemb_cmd.size);
1550 
1551 	be_mcc_notify(phba, tag);
1552 	mutex_unlock(&ctrl->mbox_lock);
1553 
1554 	rc = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd);
1555 	if (rc != -EBUSY)
1556 		dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
1557 				    nonemb_cmd.va, nonemb_cmd.dma);
1558 	return rc;
1559 }
1560