1 /*
2  * QLogic qlcnic NIC Driver
3  * Copyright (c) 2009-2013 QLogic Corporation
4  *
5  * See LICENSE.qlcnic for copyright and licensing details.
6  */
7 
8 #include "qlcnic.h"
9 
10 static const struct qlcnic_mailbox_metadata qlcnic_mbx_tbl[] = {
11 	{QLCNIC_CMD_CREATE_RX_CTX, 4, 1},
12 	{QLCNIC_CMD_DESTROY_RX_CTX, 2, 1},
13 	{QLCNIC_CMD_CREATE_TX_CTX, 4, 1},
14 	{QLCNIC_CMD_DESTROY_TX_CTX, 3, 1},
15 	{QLCNIC_CMD_INTRPT_TEST, 4, 1},
16 	{QLCNIC_CMD_SET_MTU, 4, 1},
17 	{QLCNIC_CMD_READ_PHY, 4, 2},
18 	{QLCNIC_CMD_WRITE_PHY, 5, 1},
19 	{QLCNIC_CMD_READ_HW_REG, 4, 1},
20 	{QLCNIC_CMD_GET_FLOW_CTL, 4, 2},
21 	{QLCNIC_CMD_SET_FLOW_CTL, 4, 1},
22 	{QLCNIC_CMD_READ_MAX_MTU, 4, 2},
23 	{QLCNIC_CMD_READ_MAX_LRO, 4, 2},
24 	{QLCNIC_CMD_MAC_ADDRESS, 4, 3},
25 	{QLCNIC_CMD_GET_PCI_INFO, 4, 1},
26 	{QLCNIC_CMD_GET_NIC_INFO, 4, 1},
27 	{QLCNIC_CMD_SET_NIC_INFO, 4, 1},
28 	{QLCNIC_CMD_GET_ESWITCH_CAPABILITY, 4, 3},
29 	{QLCNIC_CMD_TOGGLE_ESWITCH, 4, 1},
30 	{QLCNIC_CMD_GET_ESWITCH_STATUS, 4, 3},
31 	{QLCNIC_CMD_SET_PORTMIRRORING, 4, 1},
32 	{QLCNIC_CMD_CONFIGURE_ESWITCH, 4, 1},
33 	{QLCNIC_CMD_GET_MAC_STATS, 4, 1},
34 	{QLCNIC_CMD_GET_ESWITCH_PORT_CONFIG, 4, 3},
35 	{QLCNIC_CMD_GET_ESWITCH_STATS, 4, 1},
36 	{QLCNIC_CMD_CONFIG_PORT, 4, 1},
37 	{QLCNIC_CMD_TEMP_SIZE, 4, 4},
38 	{QLCNIC_CMD_GET_TEMP_HDR, 4, 1},
39 	{QLCNIC_CMD_82XX_SET_DRV_VER, 4, 1},
40 	{QLCNIC_CMD_GET_LED_STATUS, 4, 2},
41 	{QLCNIC_CMD_MQ_TX_CONFIG_INTR, 2, 3},
42 	{QLCNIC_CMD_DCB_QUERY_CAP, 1, 2},
43 	{QLCNIC_CMD_DCB_QUERY_PARAM, 4, 1},
44 };
45 
46 static inline u32 qlcnic_get_cmd_signature(struct qlcnic_hardware_context *ahw)
47 {
48 	return (ahw->pci_func & 0xff) | ((ahw->fw_hal_version & 0xff) << 8) |
49 	       (0xcafe << 16);
50 }
51 
52 /* Allocate mailbox registers */
53 int qlcnic_82xx_alloc_mbx_args(struct qlcnic_cmd_args *mbx,
54 			       struct qlcnic_adapter *adapter, u32 type)
55 {
56 	int i, size;
57 	const struct qlcnic_mailbox_metadata *mbx_tbl;
58 
59 	mbx_tbl = qlcnic_mbx_tbl;
60 	size = ARRAY_SIZE(qlcnic_mbx_tbl);
61 	for (i = 0; i < size; i++) {
62 		if (type == mbx_tbl[i].cmd) {
63 			mbx->req.num = mbx_tbl[i].in_args;
64 			mbx->rsp.num = mbx_tbl[i].out_args;
65 			mbx->req.arg = kcalloc(mbx->req.num,
66 					       sizeof(u32), GFP_ATOMIC);
67 			if (!mbx->req.arg)
68 				return -ENOMEM;
69 			mbx->rsp.arg = kcalloc(mbx->rsp.num,
70 					       sizeof(u32), GFP_ATOMIC);
71 			if (!mbx->rsp.arg) {
72 				kfree(mbx->req.arg);
73 				mbx->req.arg = NULL;
74 				return -ENOMEM;
75 			}
76 			mbx->req.arg[0] = type;
77 			break;
78 		}
79 	}
80 	return 0;
81 }
82 
83 /* Free up mailbox registers */
84 void qlcnic_free_mbx_args(struct qlcnic_cmd_args *cmd)
85 {
86 	kfree(cmd->req.arg);
87 	cmd->req.arg = NULL;
88 	kfree(cmd->rsp.arg);
89 	cmd->rsp.arg = NULL;
90 }
91 
92 static u32
93 qlcnic_poll_rsp(struct qlcnic_adapter *adapter)
94 {
95 	u32 rsp;
96 	int timeout = 0, err = 0;
97 
98 	do {
99 		/* give atleast 1ms for firmware to respond */
100 		mdelay(1);
101 
102 		if (++timeout > QLCNIC_OS_CRB_RETRY_COUNT)
103 			return QLCNIC_CDRP_RSP_TIMEOUT;
104 
105 		rsp = QLCRD32(adapter, QLCNIC_CDRP_CRB_OFFSET, &err);
106 	} while (!QLCNIC_CDRP_IS_RSP(rsp));
107 
108 	return rsp;
109 }
110 
111 int qlcnic_82xx_issue_cmd(struct qlcnic_adapter *adapter,
112 			  struct qlcnic_cmd_args *cmd)
113 {
114 	int i, err = 0;
115 	u32 rsp;
116 	u32 signature;
117 	struct pci_dev *pdev = adapter->pdev;
118 	struct qlcnic_hardware_context *ahw = adapter->ahw;
119 	const char *fmt;
120 
121 	signature = qlcnic_get_cmd_signature(ahw);
122 
123 	/* Acquire semaphore before accessing CRB */
124 	if (qlcnic_api_lock(adapter)) {
125 		cmd->rsp.arg[0] = QLCNIC_RCODE_TIMEOUT;
126 		return cmd->rsp.arg[0];
127 	}
128 
129 	QLCWR32(adapter, QLCNIC_SIGN_CRB_OFFSET, signature);
130 	for (i = 1; i < cmd->req.num; i++)
131 		QLCWR32(adapter, QLCNIC_CDRP_ARG(i), cmd->req.arg[i]);
132 	QLCWR32(adapter, QLCNIC_CDRP_CRB_OFFSET,
133 		QLCNIC_CDRP_FORM_CMD(cmd->req.arg[0]));
134 	rsp = qlcnic_poll_rsp(adapter);
135 
136 	if (rsp == QLCNIC_CDRP_RSP_TIMEOUT) {
137 		dev_err(&pdev->dev, "command timeout, response = 0x%x\n", rsp);
138 		cmd->rsp.arg[0] = QLCNIC_RCODE_TIMEOUT;
139 	} else if (rsp == QLCNIC_CDRP_RSP_FAIL) {
140 		cmd->rsp.arg[0] = QLCRD32(adapter, QLCNIC_CDRP_ARG(1), &err);
141 		switch (cmd->rsp.arg[0]) {
142 		case QLCNIC_RCODE_INVALID_ARGS:
143 			fmt = "CDRP invalid args: [%d]\n";
144 			break;
145 		case QLCNIC_RCODE_NOT_SUPPORTED:
146 		case QLCNIC_RCODE_NOT_IMPL:
147 			fmt = "CDRP command not supported: [%d]\n";
148 			break;
149 		case QLCNIC_RCODE_NOT_PERMITTED:
150 			fmt = "CDRP requested action not permitted: [%d]\n";
151 			break;
152 		case QLCNIC_RCODE_INVALID:
153 			fmt = "CDRP invalid or unknown cmd received: [%d]\n";
154 			break;
155 		case QLCNIC_RCODE_TIMEOUT:
156 			fmt = "CDRP command timeout: [%d]\n";
157 			break;
158 		default:
159 			fmt = "CDRP command failed: [%d]\n";
160 			break;
161 		}
162 		dev_err(&pdev->dev, fmt, cmd->rsp.arg[0]);
163 		qlcnic_dump_mbx(adapter, cmd);
164 	} else if (rsp == QLCNIC_CDRP_RSP_OK)
165 		cmd->rsp.arg[0] = QLCNIC_RCODE_SUCCESS;
166 
167 	for (i = 1; i < cmd->rsp.num; i++)
168 		cmd->rsp.arg[i] = QLCRD32(adapter, QLCNIC_CDRP_ARG(i), &err);
169 
170 	/* Release semaphore */
171 	qlcnic_api_unlock(adapter);
172 	return cmd->rsp.arg[0];
173 }
174 
175 int qlcnic_fw_cmd_set_drv_version(struct qlcnic_adapter *adapter, u32 fw_cmd)
176 {
177 	struct qlcnic_cmd_args cmd;
178 	u32 arg1, arg2, arg3;
179 	char drv_string[12];
180 	int err = 0;
181 
182 	memset(drv_string, 0, sizeof(drv_string));
183 	snprintf(drv_string, sizeof(drv_string), "%d"".""%d"".""%d",
184 		 _QLCNIC_LINUX_MAJOR, _QLCNIC_LINUX_MINOR,
185 		 _QLCNIC_LINUX_SUBVERSION);
186 
187 	err = qlcnic_alloc_mbx_args(&cmd, adapter, fw_cmd);
188 	if (err)
189 		return err;
190 
191 	memcpy(&arg1, drv_string, sizeof(u32));
192 	memcpy(&arg2, drv_string + 4, sizeof(u32));
193 	memcpy(&arg3, drv_string + 8, sizeof(u32));
194 
195 	cmd.req.arg[1] = arg1;
196 	cmd.req.arg[2] = arg2;
197 	cmd.req.arg[3] = arg3;
198 
199 	err = qlcnic_issue_cmd(adapter, &cmd);
200 	if (err) {
201 		dev_info(&adapter->pdev->dev,
202 			 "Failed to set driver version in firmware\n");
203 		err = -EIO;
204 	}
205 	qlcnic_free_mbx_args(&cmd);
206 	return err;
207 }
208 
209 int
210 qlcnic_fw_cmd_set_mtu(struct qlcnic_adapter *adapter, int mtu)
211 {
212 	int err = 0;
213 	struct qlcnic_cmd_args cmd;
214 	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
215 
216 	if (recv_ctx->state != QLCNIC_HOST_CTX_STATE_ACTIVE)
217 		return err;
218 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_MTU);
219 	if (err)
220 		return err;
221 
222 	cmd.req.arg[1] = recv_ctx->context_id;
223 	cmd.req.arg[2] = mtu;
224 
225 	err = qlcnic_issue_cmd(adapter, &cmd);
226 	if (err) {
227 		dev_err(&adapter->pdev->dev, "Failed to set mtu\n");
228 		err = -EIO;
229 	}
230 	qlcnic_free_mbx_args(&cmd);
231 	return err;
232 }
233 
234 int qlcnic_82xx_fw_cmd_create_rx_ctx(struct qlcnic_adapter *adapter)
235 {
236 	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
237 	struct qlcnic_hardware_context *ahw = adapter->ahw;
238 	dma_addr_t hostrq_phys_addr, cardrsp_phys_addr;
239 	struct net_device *netdev = adapter->netdev;
240 	u32 temp_intr_crb_mode, temp_rds_crb_mode;
241 	struct qlcnic_cardrsp_rds_ring *prsp_rds;
242 	struct qlcnic_cardrsp_sds_ring *prsp_sds;
243 	struct qlcnic_hostrq_rds_ring *prq_rds;
244 	struct qlcnic_hostrq_sds_ring *prq_sds;
245 	struct qlcnic_host_rds_ring *rds_ring;
246 	struct qlcnic_host_sds_ring *sds_ring;
247 	struct qlcnic_cardrsp_rx_ctx *prsp;
248 	struct qlcnic_hostrq_rx_ctx *prq;
249 	u8 i, nrds_rings, nsds_rings;
250 	struct qlcnic_cmd_args cmd;
251 	size_t rq_size, rsp_size;
252 	u32 cap, reg, val, reg2;
253 	u64 phys_addr;
254 	u16 temp_u16;
255 	void *addr;
256 	int err;
257 
258 	nrds_rings = adapter->max_rds_rings;
259 	nsds_rings = adapter->drv_sds_rings;
260 
261 	rq_size = SIZEOF_HOSTRQ_RX(struct qlcnic_hostrq_rx_ctx, nrds_rings,
262 				   nsds_rings);
263 	rsp_size = SIZEOF_CARDRSP_RX(struct qlcnic_cardrsp_rx_ctx, nrds_rings,
264 				     nsds_rings);
265 
266 	addr = dma_alloc_coherent(&adapter->pdev->dev, rq_size,
267 				  &hostrq_phys_addr, GFP_KERNEL);
268 	if (addr == NULL)
269 		return -ENOMEM;
270 	prq = addr;
271 
272 	addr = dma_alloc_coherent(&adapter->pdev->dev, rsp_size,
273 			&cardrsp_phys_addr, GFP_KERNEL);
274 	if (addr == NULL) {
275 		err = -ENOMEM;
276 		goto out_free_rq;
277 	}
278 	prsp = addr;
279 
280 	prq->host_rsp_dma_addr = cpu_to_le64(cardrsp_phys_addr);
281 
282 	cap = (QLCNIC_CAP0_LEGACY_CONTEXT | QLCNIC_CAP0_LEGACY_MN
283 						| QLCNIC_CAP0_VALIDOFF);
284 	cap |= (QLCNIC_CAP0_JUMBO_CONTIGUOUS | QLCNIC_CAP0_LRO_CONTIGUOUS);
285 
286 	if (qlcnic_check_multi_tx(adapter) &&
287 	    !adapter->ahw->diag_test) {
288 		cap |= QLCNIC_CAP0_TX_MULTI;
289 	} else {
290 		temp_u16 = offsetof(struct qlcnic_hostrq_rx_ctx, msix_handler);
291 		prq->valid_field_offset = cpu_to_le16(temp_u16);
292 		prq->txrx_sds_binding = nsds_rings - 1;
293 		temp_intr_crb_mode = QLCNIC_HOST_INT_CRB_MODE_SHARED;
294 		prq->host_int_crb_mode = cpu_to_le32(temp_intr_crb_mode);
295 		temp_rds_crb_mode = QLCNIC_HOST_RDS_CRB_MODE_UNIQUE;
296 		prq->host_rds_crb_mode = cpu_to_le32(temp_rds_crb_mode);
297 	}
298 
299 	prq->capabilities[0] = cpu_to_le32(cap);
300 
301 	prq->num_rds_rings = cpu_to_le16(nrds_rings);
302 	prq->num_sds_rings = cpu_to_le16(nsds_rings);
303 	prq->rds_ring_offset = 0;
304 
305 	val = le32_to_cpu(prq->rds_ring_offset) +
306 		(sizeof(struct qlcnic_hostrq_rds_ring) * nrds_rings);
307 	prq->sds_ring_offset = cpu_to_le32(val);
308 
309 	prq_rds = (struct qlcnic_hostrq_rds_ring *)(prq->data +
310 			le32_to_cpu(prq->rds_ring_offset));
311 
312 	for (i = 0; i < nrds_rings; i++) {
313 		rds_ring = &recv_ctx->rds_rings[i];
314 		rds_ring->producer = 0;
315 		prq_rds[i].host_phys_addr = cpu_to_le64(rds_ring->phys_addr);
316 		prq_rds[i].ring_size = cpu_to_le32(rds_ring->num_desc);
317 		prq_rds[i].ring_kind = cpu_to_le32(i);
318 		prq_rds[i].buff_size = cpu_to_le64(rds_ring->dma_size);
319 	}
320 
321 	prq_sds = (struct qlcnic_hostrq_sds_ring *)(prq->data +
322 			le32_to_cpu(prq->sds_ring_offset));
323 
324 	for (i = 0; i < nsds_rings; i++) {
325 		sds_ring = &recv_ctx->sds_rings[i];
326 		sds_ring->consumer = 0;
327 		memset(sds_ring->desc_head, 0, STATUS_DESC_RINGSIZE(sds_ring));
328 		prq_sds[i].host_phys_addr = cpu_to_le64(sds_ring->phys_addr);
329 		prq_sds[i].ring_size = cpu_to_le32(sds_ring->num_desc);
330 		if (qlcnic_check_multi_tx(adapter) &&
331 		    !adapter->ahw->diag_test)
332 			prq_sds[i].msi_index = cpu_to_le16(ahw->intr_tbl[i].id);
333 		else
334 			prq_sds[i].msi_index = cpu_to_le16(i);
335 	}
336 
337 	phys_addr = hostrq_phys_addr;
338 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CREATE_RX_CTX);
339 	if (err)
340 		goto out_free_rsp;
341 
342 	cmd.req.arg[1] = MSD(phys_addr);
343 	cmd.req.arg[2] = LSD(phys_addr);
344 	cmd.req.arg[3] = rq_size;
345 	err = qlcnic_issue_cmd(adapter, &cmd);
346 	if (err) {
347 		dev_err(&adapter->pdev->dev,
348 			"Failed to create rx ctx in firmware%d\n", err);
349 		goto out_free_rsp;
350 	}
351 
352 	prsp_rds = ((struct qlcnic_cardrsp_rds_ring *)
353 			 &prsp->data[le32_to_cpu(prsp->rds_ring_offset)]);
354 
355 	for (i = 0; i < le16_to_cpu(prsp->num_rds_rings); i++) {
356 		rds_ring = &recv_ctx->rds_rings[i];
357 		reg = le32_to_cpu(prsp_rds[i].host_producer_crb);
358 		rds_ring->crb_rcv_producer = ahw->pci_base0 + reg;
359 	}
360 
361 	prsp_sds = ((struct qlcnic_cardrsp_sds_ring *)
362 			&prsp->data[le32_to_cpu(prsp->sds_ring_offset)]);
363 
364 	for (i = 0; i < le16_to_cpu(prsp->num_sds_rings); i++) {
365 		sds_ring = &recv_ctx->sds_rings[i];
366 		reg = le32_to_cpu(prsp_sds[i].host_consumer_crb);
367 		if (qlcnic_check_multi_tx(adapter) && !adapter->ahw->diag_test)
368 			reg2 = ahw->intr_tbl[i].src;
369 		else
370 			reg2 = le32_to_cpu(prsp_sds[i].interrupt_crb);
371 
372 		sds_ring->crb_intr_mask = ahw->pci_base0 + reg2;
373 		sds_ring->crb_sts_consumer = ahw->pci_base0 + reg;
374 	}
375 
376 	recv_ctx->state = le32_to_cpu(prsp->host_ctx_state);
377 	recv_ctx->context_id = le16_to_cpu(prsp->context_id);
378 	recv_ctx->virt_port = prsp->virt_port;
379 
380 	netdev_info(netdev, "Rx Context[%d] Created, state 0x%x\n",
381 		    recv_ctx->context_id, recv_ctx->state);
382 	qlcnic_free_mbx_args(&cmd);
383 
384 out_free_rsp:
385 	dma_free_coherent(&adapter->pdev->dev, rsp_size, prsp,
386 			  cardrsp_phys_addr);
387 out_free_rq:
388 	dma_free_coherent(&adapter->pdev->dev, rq_size, prq, hostrq_phys_addr);
389 
390 	return err;
391 }
392 
393 void qlcnic_82xx_fw_cmd_del_rx_ctx(struct qlcnic_adapter *adapter)
394 {
395 	int err;
396 	struct qlcnic_cmd_args cmd;
397 	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
398 
399 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DESTROY_RX_CTX);
400 	if (err)
401 		return;
402 
403 	cmd.req.arg[1] = recv_ctx->context_id;
404 	err = qlcnic_issue_cmd(adapter, &cmd);
405 	if (err)
406 		dev_err(&adapter->pdev->dev,
407 			"Failed to destroy rx ctx in firmware\n");
408 
409 	recv_ctx->state = QLCNIC_HOST_CTX_STATE_FREED;
410 	qlcnic_free_mbx_args(&cmd);
411 }
412 
413 int qlcnic_82xx_fw_cmd_create_tx_ctx(struct qlcnic_adapter *adapter,
414 				     struct qlcnic_host_tx_ring *tx_ring,
415 				     int ring)
416 {
417 	struct qlcnic_hardware_context *ahw = adapter->ahw;
418 	struct net_device *netdev = adapter->netdev;
419 	struct qlcnic_hostrq_tx_ctx	*prq;
420 	struct qlcnic_hostrq_cds_ring	*prq_cds;
421 	struct qlcnic_cardrsp_tx_ctx	*prsp;
422 	struct qlcnic_cmd_args cmd;
423 	u32 temp, intr_mask, temp_int_crb_mode;
424 	dma_addr_t rq_phys_addr, rsp_phys_addr;
425 	int temp_nsds_rings, index, err;
426 	void *rq_addr, *rsp_addr;
427 	size_t rq_size, rsp_size;
428 	u64 phys_addr;
429 	u16 msix_id;
430 
431 	/* reset host resources */
432 	tx_ring->producer = 0;
433 	tx_ring->sw_consumer = 0;
434 	*(tx_ring->hw_consumer) = 0;
435 
436 	rq_size = SIZEOF_HOSTRQ_TX(struct qlcnic_hostrq_tx_ctx);
437 	rq_addr = dma_zalloc_coherent(&adapter->pdev->dev, rq_size,
438 				      &rq_phys_addr, GFP_KERNEL);
439 	if (!rq_addr)
440 		return -ENOMEM;
441 
442 	rsp_size = SIZEOF_CARDRSP_TX(struct qlcnic_cardrsp_tx_ctx);
443 	rsp_addr = dma_zalloc_coherent(&adapter->pdev->dev, rsp_size,
444 				       &rsp_phys_addr, GFP_KERNEL);
445 	if (!rsp_addr) {
446 		err = -ENOMEM;
447 		goto out_free_rq;
448 	}
449 
450 	prq = rq_addr;
451 	prsp = rsp_addr;
452 
453 	prq->host_rsp_dma_addr = cpu_to_le64(rsp_phys_addr);
454 
455 	temp = (QLCNIC_CAP0_LEGACY_CONTEXT | QLCNIC_CAP0_LEGACY_MN |
456 		QLCNIC_CAP0_LSO);
457 	if (qlcnic_check_multi_tx(adapter) && !adapter->ahw->diag_test)
458 		temp |= QLCNIC_CAP0_TX_MULTI;
459 
460 	prq->capabilities[0] = cpu_to_le32(temp);
461 
462 	if (qlcnic_check_multi_tx(adapter) &&
463 	    !adapter->ahw->diag_test) {
464 		temp_nsds_rings = adapter->drv_sds_rings;
465 		index = temp_nsds_rings + ring;
466 		msix_id = ahw->intr_tbl[index].id;
467 		prq->msi_index = cpu_to_le16(msix_id);
468 	} else {
469 		temp_int_crb_mode = QLCNIC_HOST_INT_CRB_MODE_SHARED;
470 		prq->host_int_crb_mode = cpu_to_le32(temp_int_crb_mode);
471 		prq->msi_index = 0;
472 	}
473 
474 	prq->interrupt_ctl = 0;
475 	prq->cmd_cons_dma_addr = cpu_to_le64(tx_ring->hw_cons_phys_addr);
476 
477 	prq_cds = &prq->cds_ring;
478 
479 	prq_cds->host_phys_addr = cpu_to_le64(tx_ring->phys_addr);
480 	prq_cds->ring_size = cpu_to_le32(tx_ring->num_desc);
481 
482 	phys_addr = rq_phys_addr;
483 
484 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CREATE_TX_CTX);
485 	if (err)
486 		goto out_free_rsp;
487 
488 	cmd.req.arg[1] = MSD(phys_addr);
489 	cmd.req.arg[2] = LSD(phys_addr);
490 	cmd.req.arg[3] = rq_size;
491 	err = qlcnic_issue_cmd(adapter, &cmd);
492 
493 	if (err == QLCNIC_RCODE_SUCCESS) {
494 		tx_ring->state = le32_to_cpu(prsp->host_ctx_state);
495 		temp = le32_to_cpu(prsp->cds_ring.host_producer_crb);
496 		tx_ring->crb_cmd_producer = adapter->ahw->pci_base0 + temp;
497 		tx_ring->ctx_id = le16_to_cpu(prsp->context_id);
498 		if (qlcnic_check_multi_tx(adapter) &&
499 		    !adapter->ahw->diag_test &&
500 		    (adapter->flags & QLCNIC_MSIX_ENABLED)) {
501 			index = adapter->drv_sds_rings + ring;
502 			intr_mask = ahw->intr_tbl[index].src;
503 			tx_ring->crb_intr_mask = ahw->pci_base0 + intr_mask;
504 		}
505 
506 		netdev_info(netdev, "Tx Context[0x%x] Created, state 0x%x\n",
507 			    tx_ring->ctx_id, tx_ring->state);
508 	} else {
509 		netdev_err(netdev, "Failed to create tx ctx in firmware%d\n",
510 			   err);
511 		err = -EIO;
512 	}
513 	qlcnic_free_mbx_args(&cmd);
514 
515 out_free_rsp:
516 	dma_free_coherent(&adapter->pdev->dev, rsp_size, rsp_addr,
517 			  rsp_phys_addr);
518 out_free_rq:
519 	dma_free_coherent(&adapter->pdev->dev, rq_size, rq_addr, rq_phys_addr);
520 
521 	return err;
522 }
523 
524 void qlcnic_82xx_fw_cmd_del_tx_ctx(struct qlcnic_adapter *adapter,
525 				   struct qlcnic_host_tx_ring *tx_ring)
526 {
527 	struct qlcnic_cmd_args cmd;
528 	int ret;
529 
530 	ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DESTROY_TX_CTX);
531 	if (ret)
532 		return;
533 
534 	cmd.req.arg[1] = tx_ring->ctx_id;
535 	if (qlcnic_issue_cmd(adapter, &cmd))
536 		dev_err(&adapter->pdev->dev,
537 			"Failed to destroy tx ctx in firmware\n");
538 	qlcnic_free_mbx_args(&cmd);
539 }
540 
541 int
542 qlcnic_fw_cmd_set_port(struct qlcnic_adapter *adapter, u32 config)
543 {
544 	int err;
545 	struct qlcnic_cmd_args cmd;
546 
547 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_PORT);
548 	if (err)
549 		return err;
550 
551 	cmd.req.arg[1] = config;
552 	err = qlcnic_issue_cmd(adapter, &cmd);
553 	qlcnic_free_mbx_args(&cmd);
554 	return err;
555 }
556 
557 int qlcnic_alloc_hw_resources(struct qlcnic_adapter *adapter)
558 {
559 	void *addr;
560 	int err, ring;
561 	struct qlcnic_recv_context *recv_ctx;
562 	struct qlcnic_host_rds_ring *rds_ring;
563 	struct qlcnic_host_sds_ring *sds_ring;
564 	struct qlcnic_host_tx_ring *tx_ring;
565 	__le32 *ptr;
566 
567 	struct pci_dev *pdev = adapter->pdev;
568 
569 	recv_ctx = adapter->recv_ctx;
570 
571 	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
572 		tx_ring = &adapter->tx_ring[ring];
573 		ptr = (__le32 *)dma_alloc_coherent(&pdev->dev, sizeof(u32),
574 						   &tx_ring->hw_cons_phys_addr,
575 						   GFP_KERNEL);
576 		if (ptr == NULL) {
577 			err = -ENOMEM;
578 			goto err_out_free;
579 		}
580 
581 		tx_ring->hw_consumer = ptr;
582 		/* cmd desc ring */
583 		addr = dma_alloc_coherent(&pdev->dev, TX_DESC_RINGSIZE(tx_ring),
584 					  &tx_ring->phys_addr,
585 					  GFP_KERNEL);
586 		if (addr == NULL) {
587 			err = -ENOMEM;
588 			goto err_out_free;
589 		}
590 
591 		tx_ring->desc_head = addr;
592 	}
593 
594 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
595 		rds_ring = &recv_ctx->rds_rings[ring];
596 		addr = dma_alloc_coherent(&adapter->pdev->dev,
597 					  RCV_DESC_RINGSIZE(rds_ring),
598 					  &rds_ring->phys_addr, GFP_KERNEL);
599 		if (addr == NULL) {
600 			err = -ENOMEM;
601 			goto err_out_free;
602 		}
603 		rds_ring->desc_head = addr;
604 
605 	}
606 
607 	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
608 		sds_ring = &recv_ctx->sds_rings[ring];
609 
610 		addr = dma_alloc_coherent(&adapter->pdev->dev,
611 					  STATUS_DESC_RINGSIZE(sds_ring),
612 					  &sds_ring->phys_addr, GFP_KERNEL);
613 		if (addr == NULL) {
614 			err = -ENOMEM;
615 			goto err_out_free;
616 		}
617 		sds_ring->desc_head = addr;
618 	}
619 
620 	return 0;
621 
622 err_out_free:
623 	qlcnic_free_hw_resources(adapter);
624 	return err;
625 }
626 
627 int qlcnic_fw_create_ctx(struct qlcnic_adapter *dev)
628 {
629 	int i, err, ring;
630 
631 	if (dev->flags & QLCNIC_NEED_FLR) {
632 		pci_reset_function(dev->pdev);
633 		dev->flags &= ~QLCNIC_NEED_FLR;
634 	}
635 
636 	if (qlcnic_83xx_check(dev) && (dev->flags & QLCNIC_MSIX_ENABLED)) {
637 		if (dev->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
638 			err = qlcnic_83xx_config_intrpt(dev, 1);
639 			if (err)
640 				return err;
641 		}
642 	}
643 
644 	if (qlcnic_82xx_check(dev) && (dev->flags & QLCNIC_MSIX_ENABLED) &&
645 	    qlcnic_check_multi_tx(dev) && !dev->ahw->diag_test) {
646 		err = qlcnic_82xx_mq_intrpt(dev, 1);
647 		if (err)
648 			return err;
649 	}
650 
651 	err = qlcnic_fw_cmd_create_rx_ctx(dev);
652 	if (err)
653 		goto err_out;
654 
655 	for (ring = 0; ring < dev->drv_tx_rings; ring++) {
656 		err = qlcnic_fw_cmd_create_tx_ctx(dev,
657 						  &dev->tx_ring[ring],
658 						  ring);
659 		if (err) {
660 			qlcnic_fw_cmd_del_rx_ctx(dev);
661 			if (ring == 0)
662 				goto err_out;
663 
664 			for (i = 0; i < ring; i++)
665 				qlcnic_fw_cmd_del_tx_ctx(dev, &dev->tx_ring[i]);
666 
667 			goto err_out;
668 		}
669 	}
670 
671 	set_bit(__QLCNIC_FW_ATTACHED, &dev->state);
672 
673 	return 0;
674 
675 err_out:
676 	if (qlcnic_82xx_check(dev) && (dev->flags & QLCNIC_MSIX_ENABLED) &&
677 	    qlcnic_check_multi_tx(dev) && !dev->ahw->diag_test)
678 			qlcnic_82xx_config_intrpt(dev, 0);
679 
680 	if (qlcnic_83xx_check(dev) && (dev->flags & QLCNIC_MSIX_ENABLED)) {
681 		if (dev->ahw->diag_test != QLCNIC_LOOPBACK_TEST)
682 			qlcnic_83xx_config_intrpt(dev, 0);
683 	}
684 
685 	return err;
686 }
687 
688 void qlcnic_fw_destroy_ctx(struct qlcnic_adapter *adapter)
689 {
690 	int ring;
691 
692 	if (test_and_clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state)) {
693 		qlcnic_fw_cmd_del_rx_ctx(adapter);
694 		for (ring = 0; ring < adapter->drv_tx_rings; ring++)
695 			qlcnic_fw_cmd_del_tx_ctx(adapter,
696 						 &adapter->tx_ring[ring]);
697 
698 		if (qlcnic_82xx_check(adapter) &&
699 		    (adapter->flags & QLCNIC_MSIX_ENABLED) &&
700 		    qlcnic_check_multi_tx(adapter) &&
701 		    !adapter->ahw->diag_test)
702 				qlcnic_82xx_config_intrpt(adapter, 0);
703 
704 		if (qlcnic_83xx_check(adapter) &&
705 		    (adapter->flags & QLCNIC_MSIX_ENABLED)) {
706 			if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST)
707 				qlcnic_83xx_config_intrpt(adapter, 0);
708 		}
709 		/* Allow dma queues to drain after context reset */
710 		mdelay(20);
711 	}
712 }
713 
714 void qlcnic_free_hw_resources(struct qlcnic_adapter *adapter)
715 {
716 	struct qlcnic_recv_context *recv_ctx;
717 	struct qlcnic_host_rds_ring *rds_ring;
718 	struct qlcnic_host_sds_ring *sds_ring;
719 	struct qlcnic_host_tx_ring *tx_ring;
720 	int ring;
721 
722 	recv_ctx = adapter->recv_ctx;
723 
724 	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
725 		tx_ring = &adapter->tx_ring[ring];
726 		if (tx_ring->hw_consumer != NULL) {
727 			dma_free_coherent(&adapter->pdev->dev, sizeof(u32),
728 					  tx_ring->hw_consumer,
729 					  tx_ring->hw_cons_phys_addr);
730 
731 			tx_ring->hw_consumer = NULL;
732 		}
733 
734 		if (tx_ring->desc_head != NULL) {
735 			dma_free_coherent(&adapter->pdev->dev,
736 					  TX_DESC_RINGSIZE(tx_ring),
737 					  tx_ring->desc_head,
738 					  tx_ring->phys_addr);
739 			tx_ring->desc_head = NULL;
740 		}
741 	}
742 
743 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
744 		rds_ring = &recv_ctx->rds_rings[ring];
745 
746 		if (rds_ring->desc_head != NULL) {
747 			dma_free_coherent(&adapter->pdev->dev,
748 					RCV_DESC_RINGSIZE(rds_ring),
749 					rds_ring->desc_head,
750 					rds_ring->phys_addr);
751 			rds_ring->desc_head = NULL;
752 		}
753 	}
754 
755 	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
756 		sds_ring = &recv_ctx->sds_rings[ring];
757 
758 		if (sds_ring->desc_head != NULL) {
759 			dma_free_coherent(&adapter->pdev->dev,
760 				STATUS_DESC_RINGSIZE(sds_ring),
761 				sds_ring->desc_head,
762 				sds_ring->phys_addr);
763 			sds_ring->desc_head = NULL;
764 		}
765 	}
766 }
767 
768 int qlcnic_82xx_config_intrpt(struct qlcnic_adapter *adapter, u8 op_type)
769 {
770 	struct qlcnic_hardware_context *ahw = adapter->ahw;
771 	struct net_device *netdev = adapter->netdev;
772 	struct qlcnic_cmd_args cmd;
773 	u32 type, val;
774 	int i, err = 0;
775 
776 	for (i = 0; i < ahw->num_msix; i++) {
777 		err = qlcnic_alloc_mbx_args(&cmd, adapter,
778 					    QLCNIC_CMD_MQ_TX_CONFIG_INTR);
779 		if (err)
780 			return err;
781 		type = op_type ? QLCNIC_INTRPT_ADD : QLCNIC_INTRPT_DEL;
782 		val = type | (ahw->intr_tbl[i].type << 4);
783 		if (ahw->intr_tbl[i].type == QLCNIC_INTRPT_MSIX)
784 			val |= (ahw->intr_tbl[i].id << 16);
785 		cmd.req.arg[1] = val;
786 		err = qlcnic_issue_cmd(adapter, &cmd);
787 		if (err) {
788 			netdev_err(netdev, "Failed to %s interrupts %d\n",
789 				   op_type == QLCNIC_INTRPT_ADD ? "Add" :
790 				   "Delete", err);
791 			qlcnic_free_mbx_args(&cmd);
792 			return err;
793 		}
794 		val = cmd.rsp.arg[1];
795 		if (LSB(val)) {
796 			netdev_info(netdev,
797 				    "failed to configure interrupt for %d\n",
798 				    ahw->intr_tbl[i].id);
799 			continue;
800 		}
801 		if (op_type) {
802 			ahw->intr_tbl[i].id = MSW(val);
803 			ahw->intr_tbl[i].enabled = 1;
804 			ahw->intr_tbl[i].src = cmd.rsp.arg[2];
805 		} else {
806 			ahw->intr_tbl[i].id = i;
807 			ahw->intr_tbl[i].enabled = 0;
808 			ahw->intr_tbl[i].src = 0;
809 		}
810 		qlcnic_free_mbx_args(&cmd);
811 	}
812 
813 	return err;
814 }
815 
816 int qlcnic_82xx_get_mac_address(struct qlcnic_adapter *adapter, u8 *mac,
817 				u8 function)
818 {
819 	int err, i;
820 	struct qlcnic_cmd_args cmd;
821 	u32 mac_low, mac_high;
822 
823 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_MAC_ADDRESS);
824 	if (err)
825 		return err;
826 
827 	cmd.req.arg[1] = function | BIT_8;
828 	err = qlcnic_issue_cmd(adapter, &cmd);
829 
830 	if (err == QLCNIC_RCODE_SUCCESS) {
831 		mac_low = cmd.rsp.arg[1];
832 		mac_high = cmd.rsp.arg[2];
833 
834 		for (i = 0; i < 2; i++)
835 			mac[i] = (u8) (mac_high >> ((1 - i) * 8));
836 		for (i = 2; i < 6; i++)
837 			mac[i] = (u8) (mac_low >> ((5 - i) * 8));
838 	} else {
839 		dev_err(&adapter->pdev->dev,
840 			"Failed to get mac address%d\n", err);
841 		err = -EIO;
842 	}
843 	qlcnic_free_mbx_args(&cmd);
844 	return err;
845 }
846 
847 /* Get info of a NIC partition */
848 int qlcnic_82xx_get_nic_info(struct qlcnic_adapter *adapter,
849 			     struct qlcnic_info *npar_info, u8 func_id)
850 {
851 	int	err;
852 	dma_addr_t nic_dma_t;
853 	const struct qlcnic_info_le *nic_info;
854 	void *nic_info_addr;
855 	struct qlcnic_cmd_args cmd;
856 	size_t  nic_size = sizeof(struct qlcnic_info_le);
857 
858 	nic_info_addr = dma_zalloc_coherent(&adapter->pdev->dev, nic_size,
859 					    &nic_dma_t, GFP_KERNEL);
860 	if (!nic_info_addr)
861 		return -ENOMEM;
862 
863 	nic_info = nic_info_addr;
864 
865 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
866 	if (err)
867 		goto out_free_dma;
868 
869 	cmd.req.arg[1] = MSD(nic_dma_t);
870 	cmd.req.arg[2] = LSD(nic_dma_t);
871 	cmd.req.arg[3] = (func_id << 16 | nic_size);
872 	err = qlcnic_issue_cmd(adapter, &cmd);
873 	if (err != QLCNIC_RCODE_SUCCESS) {
874 		dev_err(&adapter->pdev->dev,
875 			"Failed to get nic info%d\n", err);
876 		err = -EIO;
877 	} else {
878 		npar_info->pci_func = le16_to_cpu(nic_info->pci_func);
879 		npar_info->op_mode = le16_to_cpu(nic_info->op_mode);
880 		npar_info->min_tx_bw = le16_to_cpu(nic_info->min_tx_bw);
881 		npar_info->max_tx_bw = le16_to_cpu(nic_info->max_tx_bw);
882 		npar_info->phys_port = le16_to_cpu(nic_info->phys_port);
883 		npar_info->switch_mode = le16_to_cpu(nic_info->switch_mode);
884 		npar_info->max_tx_ques = le16_to_cpu(nic_info->max_tx_ques);
885 		npar_info->max_rx_ques = le16_to_cpu(nic_info->max_rx_ques);
886 		npar_info->capabilities = le32_to_cpu(nic_info->capabilities);
887 		npar_info->max_mtu = le16_to_cpu(nic_info->max_mtu);
888 	}
889 
890 	qlcnic_free_mbx_args(&cmd);
891 out_free_dma:
892 	dma_free_coherent(&adapter->pdev->dev, nic_size, nic_info_addr,
893 			  nic_dma_t);
894 
895 	return err;
896 }
897 
898 /* Configure a NIC partition */
899 int qlcnic_82xx_set_nic_info(struct qlcnic_adapter *adapter,
900 			     struct qlcnic_info *nic)
901 {
902 	int err = -EIO;
903 	dma_addr_t nic_dma_t;
904 	void *nic_info_addr;
905 	struct qlcnic_cmd_args cmd;
906 	struct qlcnic_info_le *nic_info;
907 	size_t nic_size = sizeof(struct qlcnic_info_le);
908 
909 	if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
910 		return err;
911 
912 	nic_info_addr = dma_zalloc_coherent(&adapter->pdev->dev, nic_size,
913 					    &nic_dma_t, GFP_KERNEL);
914 	if (!nic_info_addr)
915 		return -ENOMEM;
916 
917 	nic_info = nic_info_addr;
918 
919 	nic_info->pci_func = cpu_to_le16(nic->pci_func);
920 	nic_info->op_mode = cpu_to_le16(nic->op_mode);
921 	nic_info->phys_port = cpu_to_le16(nic->phys_port);
922 	nic_info->switch_mode = cpu_to_le16(nic->switch_mode);
923 	nic_info->capabilities = cpu_to_le32(nic->capabilities);
924 	nic_info->max_mac_filters = nic->max_mac_filters;
925 	nic_info->max_tx_ques = cpu_to_le16(nic->max_tx_ques);
926 	nic_info->max_rx_ques = cpu_to_le16(nic->max_rx_ques);
927 	nic_info->min_tx_bw = cpu_to_le16(nic->min_tx_bw);
928 	nic_info->max_tx_bw = cpu_to_le16(nic->max_tx_bw);
929 
930 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_NIC_INFO);
931 	if (err)
932 		goto out_free_dma;
933 
934 	cmd.req.arg[1] = MSD(nic_dma_t);
935 	cmd.req.arg[2] = LSD(nic_dma_t);
936 	cmd.req.arg[3] = ((nic->pci_func << 16) | nic_size);
937 	err = qlcnic_issue_cmd(adapter, &cmd);
938 
939 	if (err != QLCNIC_RCODE_SUCCESS) {
940 		dev_err(&adapter->pdev->dev,
941 			"Failed to set nic info%d\n", err);
942 		err = -EIO;
943 	}
944 
945 	qlcnic_free_mbx_args(&cmd);
946 out_free_dma:
947 	dma_free_coherent(&adapter->pdev->dev, nic_size, nic_info_addr,
948 			  nic_dma_t);
949 
950 	return err;
951 }
952 
953 /* Get PCI Info of a partition */
954 int qlcnic_82xx_get_pci_info(struct qlcnic_adapter *adapter,
955 			     struct qlcnic_pci_info *pci_info)
956 {
957 	struct qlcnic_hardware_context *ahw = adapter->ahw;
958 	size_t npar_size = sizeof(struct qlcnic_pci_info_le);
959 	size_t pci_size = npar_size * ahw->max_vnic_func;
960 	u16 nic = 0, fcoe = 0, iscsi = 0;
961 	struct qlcnic_pci_info_le *npar;
962 	struct qlcnic_cmd_args cmd;
963 	dma_addr_t pci_info_dma_t;
964 	void *pci_info_addr;
965 	int err = 0, i;
966 
967 	pci_info_addr = dma_zalloc_coherent(&adapter->pdev->dev, pci_size,
968 					    &pci_info_dma_t, GFP_KERNEL);
969 	if (!pci_info_addr)
970 		return -ENOMEM;
971 
972 	npar = pci_info_addr;
973 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PCI_INFO);
974 	if (err)
975 		goto out_free_dma;
976 
977 	cmd.req.arg[1] = MSD(pci_info_dma_t);
978 	cmd.req.arg[2] = LSD(pci_info_dma_t);
979 	cmd.req.arg[3] = pci_size;
980 	err = qlcnic_issue_cmd(adapter, &cmd);
981 
982 	ahw->total_nic_func = 0;
983 	if (err == QLCNIC_RCODE_SUCCESS) {
984 		for (i = 0; i < ahw->max_vnic_func; i++, npar++, pci_info++) {
985 			pci_info->id = le16_to_cpu(npar->id);
986 			pci_info->active = le16_to_cpu(npar->active);
987 			if (!pci_info->active)
988 				continue;
989 			pci_info->type = le16_to_cpu(npar->type);
990 			err = qlcnic_get_pci_func_type(adapter, pci_info->type,
991 						       &nic, &fcoe, &iscsi);
992 			pci_info->default_port =
993 				le16_to_cpu(npar->default_port);
994 			pci_info->tx_min_bw =
995 				le16_to_cpu(npar->tx_min_bw);
996 			pci_info->tx_max_bw =
997 				le16_to_cpu(npar->tx_max_bw);
998 			memcpy(pci_info->mac, npar->mac, ETH_ALEN);
999 		}
1000 	} else {
1001 		dev_err(&adapter->pdev->dev,
1002 			"Failed to get PCI Info%d\n", err);
1003 		err = -EIO;
1004 	}
1005 
1006 	ahw->total_nic_func = nic;
1007 	ahw->total_pci_func = nic + fcoe + iscsi;
1008 	if (ahw->total_nic_func == 0 || ahw->total_pci_func == 0) {
1009 		dev_err(&adapter->pdev->dev,
1010 			"%s: Invalid function count: total nic func[%x], total pci func[%x]\n",
1011 			__func__, ahw->total_nic_func, ahw->total_pci_func);
1012 		err = -EIO;
1013 	}
1014 	qlcnic_free_mbx_args(&cmd);
1015 out_free_dma:
1016 	dma_free_coherent(&adapter->pdev->dev, pci_size, pci_info_addr,
1017 		pci_info_dma_t);
1018 
1019 	return err;
1020 }
1021 
1022 /* Configure eSwitch for port mirroring */
1023 int qlcnic_config_port_mirroring(struct qlcnic_adapter *adapter, u8 id,
1024 				 u8 enable_mirroring, u8 pci_func)
1025 {
1026 	struct device *dev = &adapter->pdev->dev;
1027 	struct qlcnic_cmd_args cmd;
1028 	int err = -EIO;
1029 	u32 arg1;
1030 
1031 	if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC ||
1032 	    !(adapter->eswitch[id].flags & QLCNIC_SWITCH_ENABLE)) {
1033 		dev_err(&adapter->pdev->dev, "%s: Not a management function\n",
1034 			__func__);
1035 		return err;
1036 	}
1037 
1038 	arg1 = id | (enable_mirroring ? BIT_4 : 0);
1039 	arg1 |= pci_func << 8;
1040 
1041 	err = qlcnic_alloc_mbx_args(&cmd, adapter,
1042 				    QLCNIC_CMD_SET_PORTMIRRORING);
1043 	if (err)
1044 		return err;
1045 
1046 	cmd.req.arg[1] = arg1;
1047 	err = qlcnic_issue_cmd(adapter, &cmd);
1048 
1049 	if (err != QLCNIC_RCODE_SUCCESS)
1050 		dev_err(dev, "Failed to configure port mirroring for vNIC function %d on eSwitch %d\n",
1051 			pci_func, id);
1052 	else
1053 		dev_info(dev, "Configured port mirroring for vNIC function %d on eSwitch %d\n",
1054 			 pci_func, id);
1055 	qlcnic_free_mbx_args(&cmd);
1056 
1057 	return err;
1058 }
1059 
1060 int qlcnic_get_port_stats(struct qlcnic_adapter *adapter, const u8 func,
1061 		const u8 rx_tx, struct __qlcnic_esw_statistics *esw_stats) {
1062 
1063 	size_t stats_size = sizeof(struct qlcnic_esw_stats_le);
1064 	struct qlcnic_esw_stats_le *stats;
1065 	dma_addr_t stats_dma_t;
1066 	void *stats_addr;
1067 	u32 arg1;
1068 	struct qlcnic_cmd_args cmd;
1069 	int err;
1070 
1071 	if (esw_stats == NULL)
1072 		return -ENOMEM;
1073 
1074 	if ((adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) &&
1075 	    (func != adapter->ahw->pci_func)) {
1076 		dev_err(&adapter->pdev->dev,
1077 			"Not privilege to query stats for func=%d", func);
1078 		return -EIO;
1079 	}
1080 
1081 	stats_addr = dma_zalloc_coherent(&adapter->pdev->dev, stats_size,
1082 					 &stats_dma_t, GFP_KERNEL);
1083 	if (!stats_addr)
1084 		return -ENOMEM;
1085 
1086 	arg1 = func | QLCNIC_STATS_VERSION << 8 | QLCNIC_STATS_PORT << 12;
1087 	arg1 |= rx_tx << 15 | stats_size << 16;
1088 
1089 	err = qlcnic_alloc_mbx_args(&cmd, adapter,
1090 				    QLCNIC_CMD_GET_ESWITCH_STATS);
1091 	if (err)
1092 		goto out_free_dma;
1093 
1094 	cmd.req.arg[1] = arg1;
1095 	cmd.req.arg[2] = MSD(stats_dma_t);
1096 	cmd.req.arg[3] = LSD(stats_dma_t);
1097 	err = qlcnic_issue_cmd(adapter, &cmd);
1098 
1099 	if (!err) {
1100 		stats = stats_addr;
1101 		esw_stats->context_id = le16_to_cpu(stats->context_id);
1102 		esw_stats->version = le16_to_cpu(stats->version);
1103 		esw_stats->size = le16_to_cpu(stats->size);
1104 		esw_stats->multicast_frames =
1105 				le64_to_cpu(stats->multicast_frames);
1106 		esw_stats->broadcast_frames =
1107 				le64_to_cpu(stats->broadcast_frames);
1108 		esw_stats->unicast_frames = le64_to_cpu(stats->unicast_frames);
1109 		esw_stats->dropped_frames = le64_to_cpu(stats->dropped_frames);
1110 		esw_stats->local_frames = le64_to_cpu(stats->local_frames);
1111 		esw_stats->errors = le64_to_cpu(stats->errors);
1112 		esw_stats->numbytes = le64_to_cpu(stats->numbytes);
1113 	}
1114 
1115 	qlcnic_free_mbx_args(&cmd);
1116 out_free_dma:
1117 	dma_free_coherent(&adapter->pdev->dev, stats_size, stats_addr,
1118 			  stats_dma_t);
1119 
1120 	return err;
1121 }
1122 
1123 /* This routine will retrieve the MAC statistics from firmware */
1124 int qlcnic_get_mac_stats(struct qlcnic_adapter *adapter,
1125 		struct qlcnic_mac_statistics *mac_stats)
1126 {
1127 	struct qlcnic_mac_statistics_le *stats;
1128 	struct qlcnic_cmd_args cmd;
1129 	size_t stats_size = sizeof(struct qlcnic_mac_statistics_le);
1130 	dma_addr_t stats_dma_t;
1131 	void *stats_addr;
1132 	int err;
1133 
1134 	if (mac_stats == NULL)
1135 		return -ENOMEM;
1136 
1137 	stats_addr = dma_zalloc_coherent(&adapter->pdev->dev, stats_size,
1138 					 &stats_dma_t, GFP_KERNEL);
1139 	if (!stats_addr)
1140 		return -ENOMEM;
1141 
1142 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_MAC_STATS);
1143 	if (err)
1144 		goto out_free_dma;
1145 
1146 	cmd.req.arg[1] = stats_size << 16;
1147 	cmd.req.arg[2] = MSD(stats_dma_t);
1148 	cmd.req.arg[3] = LSD(stats_dma_t);
1149 	err = qlcnic_issue_cmd(adapter, &cmd);
1150 	if (!err) {
1151 		stats = stats_addr;
1152 		mac_stats->mac_tx_frames = le64_to_cpu(stats->mac_tx_frames);
1153 		mac_stats->mac_tx_bytes = le64_to_cpu(stats->mac_tx_bytes);
1154 		mac_stats->mac_tx_mcast_pkts =
1155 					le64_to_cpu(stats->mac_tx_mcast_pkts);
1156 		mac_stats->mac_tx_bcast_pkts =
1157 					le64_to_cpu(stats->mac_tx_bcast_pkts);
1158 		mac_stats->mac_rx_frames = le64_to_cpu(stats->mac_rx_frames);
1159 		mac_stats->mac_rx_bytes = le64_to_cpu(stats->mac_rx_bytes);
1160 		mac_stats->mac_rx_mcast_pkts =
1161 					le64_to_cpu(stats->mac_rx_mcast_pkts);
1162 		mac_stats->mac_rx_length_error =
1163 				le64_to_cpu(stats->mac_rx_length_error);
1164 		mac_stats->mac_rx_length_small =
1165 				le64_to_cpu(stats->mac_rx_length_small);
1166 		mac_stats->mac_rx_length_large =
1167 				le64_to_cpu(stats->mac_rx_length_large);
1168 		mac_stats->mac_rx_jabber = le64_to_cpu(stats->mac_rx_jabber);
1169 		mac_stats->mac_rx_dropped = le64_to_cpu(stats->mac_rx_dropped);
1170 		mac_stats->mac_rx_crc_error = le64_to_cpu(stats->mac_rx_crc_error);
1171 	} else {
1172 		dev_err(&adapter->pdev->dev,
1173 			"%s: Get mac stats failed, err=%d.\n", __func__, err);
1174 	}
1175 
1176 	qlcnic_free_mbx_args(&cmd);
1177 
1178 out_free_dma:
1179 	dma_free_coherent(&adapter->pdev->dev, stats_size, stats_addr,
1180 			  stats_dma_t);
1181 
1182 	return err;
1183 }
1184 
1185 int qlcnic_get_eswitch_stats(struct qlcnic_adapter *adapter, const u8 eswitch,
1186 		const u8 rx_tx, struct __qlcnic_esw_statistics *esw_stats) {
1187 
1188 	struct __qlcnic_esw_statistics port_stats;
1189 	u8 i;
1190 	int ret = -EIO;
1191 
1192 	if (esw_stats == NULL)
1193 		return -ENOMEM;
1194 	if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1195 		return -EIO;
1196 	if (adapter->npars == NULL)
1197 		return -EIO;
1198 
1199 	memset(esw_stats, 0, sizeof(u64));
1200 	esw_stats->unicast_frames = QLCNIC_STATS_NOT_AVAIL;
1201 	esw_stats->multicast_frames = QLCNIC_STATS_NOT_AVAIL;
1202 	esw_stats->broadcast_frames = QLCNIC_STATS_NOT_AVAIL;
1203 	esw_stats->dropped_frames = QLCNIC_STATS_NOT_AVAIL;
1204 	esw_stats->errors = QLCNIC_STATS_NOT_AVAIL;
1205 	esw_stats->local_frames = QLCNIC_STATS_NOT_AVAIL;
1206 	esw_stats->numbytes = QLCNIC_STATS_NOT_AVAIL;
1207 	esw_stats->context_id = eswitch;
1208 
1209 	for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1210 		if (adapter->npars[i].phy_port != eswitch)
1211 			continue;
1212 
1213 		memset(&port_stats, 0, sizeof(struct __qlcnic_esw_statistics));
1214 		if (qlcnic_get_port_stats(adapter, adapter->npars[i].pci_func,
1215 					  rx_tx, &port_stats))
1216 			continue;
1217 
1218 		esw_stats->size = port_stats.size;
1219 		esw_stats->version = port_stats.version;
1220 		QLCNIC_ADD_ESW_STATS(esw_stats->unicast_frames,
1221 						port_stats.unicast_frames);
1222 		QLCNIC_ADD_ESW_STATS(esw_stats->multicast_frames,
1223 						port_stats.multicast_frames);
1224 		QLCNIC_ADD_ESW_STATS(esw_stats->broadcast_frames,
1225 						port_stats.broadcast_frames);
1226 		QLCNIC_ADD_ESW_STATS(esw_stats->dropped_frames,
1227 						port_stats.dropped_frames);
1228 		QLCNIC_ADD_ESW_STATS(esw_stats->errors,
1229 						port_stats.errors);
1230 		QLCNIC_ADD_ESW_STATS(esw_stats->local_frames,
1231 						port_stats.local_frames);
1232 		QLCNIC_ADD_ESW_STATS(esw_stats->numbytes,
1233 						port_stats.numbytes);
1234 		ret = 0;
1235 	}
1236 	return ret;
1237 }
1238 
1239 int qlcnic_clear_esw_stats(struct qlcnic_adapter *adapter, const u8 func_esw,
1240 		const u8 port, const u8 rx_tx)
1241 {
1242 	struct qlcnic_hardware_context *ahw = adapter->ahw;
1243 	struct qlcnic_cmd_args cmd;
1244 	int err;
1245 	u32 arg1;
1246 
1247 	if (ahw->op_mode != QLCNIC_MGMT_FUNC)
1248 		return -EIO;
1249 
1250 	if (func_esw == QLCNIC_STATS_PORT) {
1251 		if (port >= ahw->max_vnic_func)
1252 			goto err_ret;
1253 	} else if (func_esw == QLCNIC_STATS_ESWITCH) {
1254 		if (port >= QLCNIC_NIU_MAX_XG_PORTS)
1255 			goto err_ret;
1256 	} else {
1257 		goto err_ret;
1258 	}
1259 
1260 	if (rx_tx > QLCNIC_QUERY_TX_COUNTER)
1261 		goto err_ret;
1262 
1263 	arg1 = port | QLCNIC_STATS_VERSION << 8 | func_esw << 12;
1264 	arg1 |= BIT_14 | rx_tx << 15;
1265 
1266 	err = qlcnic_alloc_mbx_args(&cmd, adapter,
1267 				    QLCNIC_CMD_GET_ESWITCH_STATS);
1268 	if (err)
1269 		return err;
1270 
1271 	cmd.req.arg[1] = arg1;
1272 	err = qlcnic_issue_cmd(adapter, &cmd);
1273 	qlcnic_free_mbx_args(&cmd);
1274 	return err;
1275 
1276 err_ret:
1277 	dev_err(&adapter->pdev->dev,
1278 		"Invalid args func_esw %d port %d rx_ctx %d\n",
1279 		func_esw, port, rx_tx);
1280 	return -EIO;
1281 }
1282 
1283 static int __qlcnic_get_eswitch_port_config(struct qlcnic_adapter *adapter,
1284 					    u32 *arg1, u32 *arg2)
1285 {
1286 	struct device *dev = &adapter->pdev->dev;
1287 	struct qlcnic_cmd_args cmd;
1288 	u8 pci_func = *arg1 >> 8;
1289 	int err;
1290 
1291 	err = qlcnic_alloc_mbx_args(&cmd, adapter,
1292 				    QLCNIC_CMD_GET_ESWITCH_PORT_CONFIG);
1293 	if (err)
1294 		return err;
1295 
1296 	cmd.req.arg[1] = *arg1;
1297 	err = qlcnic_issue_cmd(adapter, &cmd);
1298 	*arg1 = cmd.rsp.arg[1];
1299 	*arg2 = cmd.rsp.arg[2];
1300 	qlcnic_free_mbx_args(&cmd);
1301 
1302 	if (err == QLCNIC_RCODE_SUCCESS)
1303 		dev_info(dev, "Get eSwitch port config for vNIC function %d\n",
1304 			 pci_func);
1305 	else
1306 		dev_err(dev, "Failed to get eswitch port config for vNIC function %d\n",
1307 			pci_func);
1308 	return err;
1309 }
1310 /* Configure eSwitch port
1311 op_mode = 0 for setting default port behavior
1312 op_mode = 1 for setting  vlan id
1313 op_mode = 2 for deleting vlan id
1314 op_type = 0 for vlan_id
1315 op_type = 1 for port vlan_id
1316 */
1317 int qlcnic_config_switch_port(struct qlcnic_adapter *adapter,
1318 		struct qlcnic_esw_func_cfg *esw_cfg)
1319 {
1320 	struct device *dev = &adapter->pdev->dev;
1321 	struct qlcnic_cmd_args cmd;
1322 	int err = -EIO, index;
1323 	u32 arg1, arg2 = 0;
1324 	u8 pci_func;
1325 
1326 	if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
1327 		dev_err(&adapter->pdev->dev, "%s: Not a management function\n",
1328 			__func__);
1329 		return err;
1330 	}
1331 
1332 	pci_func = esw_cfg->pci_func;
1333 	index = qlcnic_is_valid_nic_func(adapter, pci_func);
1334 	if (index < 0)
1335 		return err;
1336 	arg1 = (adapter->npars[index].phy_port & BIT_0);
1337 	arg1 |= (pci_func << 8);
1338 
1339 	if (__qlcnic_get_eswitch_port_config(adapter, &arg1, &arg2))
1340 		return err;
1341 	arg1 &= ~(0x0ff << 8);
1342 	arg1 |= (pci_func << 8);
1343 	arg1 &= ~(BIT_2 | BIT_3);
1344 	switch (esw_cfg->op_mode) {
1345 	case QLCNIC_PORT_DEFAULTS:
1346 		arg1 |= (BIT_4 | BIT_6 | BIT_7);
1347 		arg2 |= (BIT_0 | BIT_1);
1348 		if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
1349 			arg2 |= (BIT_2 | BIT_3);
1350 		if (!(esw_cfg->discard_tagged))
1351 			arg1 &= ~BIT_4;
1352 		if (!(esw_cfg->promisc_mode))
1353 			arg1 &= ~BIT_6;
1354 		if (!(esw_cfg->mac_override))
1355 			arg1 &= ~BIT_7;
1356 		if (!(esw_cfg->mac_anti_spoof))
1357 			arg2 &= ~BIT_0;
1358 		if (!(esw_cfg->offload_flags & BIT_0))
1359 			arg2 &= ~(BIT_1 | BIT_2 | BIT_3);
1360 		if (!(esw_cfg->offload_flags & BIT_1))
1361 			arg2 &= ~BIT_2;
1362 		if (!(esw_cfg->offload_flags & BIT_2))
1363 			arg2 &= ~BIT_3;
1364 		break;
1365 	case QLCNIC_ADD_VLAN:
1366 			arg1 &= ~(0x0ffff << 16);
1367 			arg1 |= (BIT_2 | BIT_5);
1368 			arg1 |= (esw_cfg->vlan_id << 16);
1369 			break;
1370 	case QLCNIC_DEL_VLAN:
1371 			arg1 |= (BIT_3 | BIT_5);
1372 			arg1 &= ~(0x0ffff << 16);
1373 			break;
1374 	default:
1375 		dev_err(&adapter->pdev->dev, "%s: Invalid opmode 0x%x\n",
1376 			__func__, esw_cfg->op_mode);
1377 		return err;
1378 	}
1379 
1380 	err = qlcnic_alloc_mbx_args(&cmd, adapter,
1381 				    QLCNIC_CMD_CONFIGURE_ESWITCH);
1382 	if (err)
1383 		return err;
1384 
1385 	cmd.req.arg[1] = arg1;
1386 	cmd.req.arg[2] = arg2;
1387 	err = qlcnic_issue_cmd(adapter, &cmd);
1388 	qlcnic_free_mbx_args(&cmd);
1389 
1390 	if (err != QLCNIC_RCODE_SUCCESS)
1391 		dev_err(dev, "Failed to configure eswitch for vNIC function %d\n",
1392 			pci_func);
1393 	else
1394 		dev_info(dev, "Configured eSwitch for vNIC function %d\n",
1395 			 pci_func);
1396 
1397 	return err;
1398 }
1399 
1400 int
1401 qlcnic_get_eswitch_port_config(struct qlcnic_adapter *adapter,
1402 			struct qlcnic_esw_func_cfg *esw_cfg)
1403 {
1404 	u32 arg1, arg2;
1405 	int index;
1406 	u8 phy_port;
1407 
1408 	if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC) {
1409 		index = qlcnic_is_valid_nic_func(adapter, esw_cfg->pci_func);
1410 		if (index < 0)
1411 			return -EIO;
1412 		phy_port = adapter->npars[index].phy_port;
1413 	} else {
1414 		phy_port = adapter->ahw->physical_port;
1415 	}
1416 	arg1 = phy_port;
1417 	arg1 |= (esw_cfg->pci_func << 8);
1418 	if (__qlcnic_get_eswitch_port_config(adapter, &arg1, &arg2))
1419 		return -EIO;
1420 
1421 	esw_cfg->discard_tagged = !!(arg1 & BIT_4);
1422 	esw_cfg->host_vlan_tag = !!(arg1 & BIT_5);
1423 	esw_cfg->promisc_mode = !!(arg1 & BIT_6);
1424 	esw_cfg->mac_override = !!(arg1 & BIT_7);
1425 	esw_cfg->vlan_id = LSW(arg1 >> 16);
1426 	esw_cfg->mac_anti_spoof = (arg2 & 0x1);
1427 	esw_cfg->offload_flags = ((arg2 >> 1) & 0x7);
1428 
1429 	return 0;
1430 }
1431