1 /* bnx2x_stats.c: QLogic Everest network driver.
2  *
3  * Copyright (c) 2007-2013 Broadcom Corporation
4  * Copyright (c) 2014 QLogic Corporation
5  * All rights reserved
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation.
10  *
11  * Maintained by: Ariel Elior <ariel.elior@qlogic.com>
12  * Written by: Eliezer Tamir
13  * Based on code from Michael Chan's bnx2 driver
14  * UDP CSUM errata workaround by Arik Gendelman
15  * Slowpath and fastpath rework by Vladislav Zolotarov
16  * Statistics and Link management by Yitchak Gertner
17  *
18  */
19 
20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21 
22 #include "bnx2x_stats.h"
23 #include "bnx2x_cmn.h"
24 #include "bnx2x_sriov.h"
25 
26 /* Statistics */
27 
28 /*
29  * General service functions
30  */
31 
32 static inline long bnx2x_hilo(u32 *hiref)
33 {
34 	u32 lo = *(hiref + 1);
35 #if (BITS_PER_LONG == 64)
36 	u32 hi = *hiref;
37 
38 	return HILO_U64(hi, lo);
39 #else
40 	return lo;
41 #endif
42 }
43 
44 static inline u16 bnx2x_get_port_stats_dma_len(struct bnx2x *bp)
45 {
46 	u16 res = 0;
47 
48 	/* 'newest' convention - shmem2 cotains the size of the port stats */
49 	if (SHMEM2_HAS(bp, sizeof_port_stats)) {
50 		u32 size = SHMEM2_RD(bp, sizeof_port_stats);
51 		if (size)
52 			res = size;
53 
54 		/* prevent newer BC from causing buffer overflow */
55 		if (res > sizeof(struct host_port_stats))
56 			res = sizeof(struct host_port_stats);
57 	}
58 
59 	/* Older convention - all BCs support the port stats' fields up until
60 	 * the 'not_used' field
61 	 */
62 	if (!res) {
63 		res = offsetof(struct host_port_stats, not_used) + 4;
64 
65 		/* if PFC stats are supported by the MFW, DMA them as well */
66 		if (bp->flags & BC_SUPPORTS_PFC_STATS) {
67 			res += offsetof(struct host_port_stats,
68 					pfc_frames_rx_lo) -
69 			       offsetof(struct host_port_stats,
70 					pfc_frames_tx_hi) + 4 ;
71 		}
72 	}
73 
74 	res >>= 2;
75 
76 	WARN_ON(res > 2 * DMAE_LEN32_RD_MAX);
77 	return res;
78 }
79 
80 /*
81  * Init service functions
82  */
83 
84 static void bnx2x_dp_stats(struct bnx2x *bp)
85 {
86 	int i;
87 
88 	DP(BNX2X_MSG_STATS, "dumping stats:\n"
89 	   "fw_stats_req\n"
90 	   "    hdr\n"
91 	   "        cmd_num %d\n"
92 	   "        reserved0 %d\n"
93 	   "        drv_stats_counter %d\n"
94 	   "        reserved1 %d\n"
95 	   "        stats_counters_addrs %x %x\n",
96 	   bp->fw_stats_req->hdr.cmd_num,
97 	   bp->fw_stats_req->hdr.reserved0,
98 	   bp->fw_stats_req->hdr.drv_stats_counter,
99 	   bp->fw_stats_req->hdr.reserved1,
100 	   bp->fw_stats_req->hdr.stats_counters_addrs.hi,
101 	   bp->fw_stats_req->hdr.stats_counters_addrs.lo);
102 
103 	for (i = 0; i < bp->fw_stats_req->hdr.cmd_num; i++) {
104 		DP(BNX2X_MSG_STATS,
105 		   "query[%d]\n"
106 		   "              kind %d\n"
107 		   "              index %d\n"
108 		   "              funcID %d\n"
109 		   "              reserved %d\n"
110 		   "              address %x %x\n",
111 		   i, bp->fw_stats_req->query[i].kind,
112 		   bp->fw_stats_req->query[i].index,
113 		   bp->fw_stats_req->query[i].funcID,
114 		   bp->fw_stats_req->query[i].reserved,
115 		   bp->fw_stats_req->query[i].address.hi,
116 		   bp->fw_stats_req->query[i].address.lo);
117 	}
118 }
119 
120 /* Post the next statistics ramrod. Protect it with the spin in
121  * order to ensure the strict order between statistics ramrods
122  * (each ramrod has a sequence number passed in a
123  * bp->fw_stats_req->hdr.drv_stats_counter and ramrods must be
124  * sent in order).
125  */
126 static void bnx2x_storm_stats_post(struct bnx2x *bp)
127 {
128 	int rc;
129 
130 	if (bp->stats_pending)
131 		return;
132 
133 	bp->fw_stats_req->hdr.drv_stats_counter =
134 		cpu_to_le16(bp->stats_counter++);
135 
136 	DP(BNX2X_MSG_STATS, "Sending statistics ramrod %d\n",
137 	   le16_to_cpu(bp->fw_stats_req->hdr.drv_stats_counter));
138 
139 	/* adjust the ramrod to include VF queues statistics */
140 	bnx2x_iov_adjust_stats_req(bp);
141 	bnx2x_dp_stats(bp);
142 
143 	/* send FW stats ramrod */
144 	rc = bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_STAT_QUERY, 0,
145 			   U64_HI(bp->fw_stats_req_mapping),
146 			   U64_LO(bp->fw_stats_req_mapping),
147 			   NONE_CONNECTION_TYPE);
148 	if (rc == 0)
149 		bp->stats_pending = 1;
150 }
151 
152 static void bnx2x_hw_stats_post(struct bnx2x *bp)
153 {
154 	struct dmae_command *dmae = &bp->stats_dmae;
155 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
156 
157 	*stats_comp = DMAE_COMP_VAL;
158 	if (CHIP_REV_IS_SLOW(bp))
159 		return;
160 
161 	/* Update MCP's statistics if possible */
162 	if (bp->func_stx)
163 		memcpy(bnx2x_sp(bp, func_stats), &bp->func_stats,
164 		       sizeof(bp->func_stats));
165 
166 	/* loader */
167 	if (bp->executer_idx) {
168 		int loader_idx = PMF_DMAE_C(bp);
169 		u32 opcode =  bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
170 						 true, DMAE_COMP_GRC);
171 		opcode = bnx2x_dmae_opcode_clr_src_reset(opcode);
172 
173 		memset(dmae, 0, sizeof(struct dmae_command));
174 		dmae->opcode = opcode;
175 		dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, dmae[0]));
176 		dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, dmae[0]));
177 		dmae->dst_addr_lo = (DMAE_REG_CMD_MEM +
178 				     sizeof(struct dmae_command) *
179 				     (loader_idx + 1)) >> 2;
180 		dmae->dst_addr_hi = 0;
181 		dmae->len = sizeof(struct dmae_command) >> 2;
182 		if (CHIP_IS_E1(bp))
183 			dmae->len--;
184 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx + 1] >> 2;
185 		dmae->comp_addr_hi = 0;
186 		dmae->comp_val = 1;
187 
188 		*stats_comp = 0;
189 		bnx2x_post_dmae(bp, dmae, loader_idx);
190 
191 	} else if (bp->func_stx) {
192 		*stats_comp = 0;
193 		bnx2x_issue_dmae_with_comp(bp, dmae, stats_comp);
194 	}
195 }
196 
197 static void bnx2x_stats_comp(struct bnx2x *bp)
198 {
199 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
200 	int cnt = 10;
201 
202 	might_sleep();
203 	while (*stats_comp != DMAE_COMP_VAL) {
204 		if (!cnt) {
205 			BNX2X_ERR("timeout waiting for stats finished\n");
206 			break;
207 		}
208 		cnt--;
209 		usleep_range(1000, 2000);
210 	}
211 }
212 
213 /*
214  * Statistics service functions
215  */
216 
217 /* should be called under stats_sema */
218 static void bnx2x_stats_pmf_update(struct bnx2x *bp)
219 {
220 	struct dmae_command *dmae;
221 	u32 opcode;
222 	int loader_idx = PMF_DMAE_C(bp);
223 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
224 
225 	/* sanity */
226 	if (!bp->port.pmf || !bp->port.port_stx) {
227 		BNX2X_ERR("BUG!\n");
228 		return;
229 	}
230 
231 	bp->executer_idx = 0;
232 
233 	opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_GRC, DMAE_DST_PCI, false, 0);
234 
235 	dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
236 	dmae->opcode = bnx2x_dmae_opcode_add_comp(opcode, DMAE_COMP_GRC);
237 	dmae->src_addr_lo = bp->port.port_stx >> 2;
238 	dmae->src_addr_hi = 0;
239 	dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
240 	dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
241 	dmae->len = DMAE_LEN32_RD_MAX;
242 	dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
243 	dmae->comp_addr_hi = 0;
244 	dmae->comp_val = 1;
245 
246 	dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
247 	dmae->opcode = bnx2x_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
248 	dmae->src_addr_lo = (bp->port.port_stx >> 2) + DMAE_LEN32_RD_MAX;
249 	dmae->src_addr_hi = 0;
250 	dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats) +
251 				   DMAE_LEN32_RD_MAX * 4);
252 	dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats) +
253 				   DMAE_LEN32_RD_MAX * 4);
254 	dmae->len = bnx2x_get_port_stats_dma_len(bp) - DMAE_LEN32_RD_MAX;
255 
256 	dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
257 	dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
258 	dmae->comp_val = DMAE_COMP_VAL;
259 
260 	*stats_comp = 0;
261 	bnx2x_hw_stats_post(bp);
262 	bnx2x_stats_comp(bp);
263 }
264 
265 static void bnx2x_port_stats_init(struct bnx2x *bp)
266 {
267 	struct dmae_command *dmae;
268 	int port = BP_PORT(bp);
269 	u32 opcode;
270 	int loader_idx = PMF_DMAE_C(bp);
271 	u32 mac_addr;
272 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
273 
274 	/* sanity */
275 	if (!bp->link_vars.link_up || !bp->port.pmf) {
276 		BNX2X_ERR("BUG!\n");
277 		return;
278 	}
279 
280 	bp->executer_idx = 0;
281 
282 	/* MCP */
283 	opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
284 				    true, DMAE_COMP_GRC);
285 
286 	if (bp->port.port_stx) {
287 
288 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
289 		dmae->opcode = opcode;
290 		dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
291 		dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
292 		dmae->dst_addr_lo = bp->port.port_stx >> 2;
293 		dmae->dst_addr_hi = 0;
294 		dmae->len = bnx2x_get_port_stats_dma_len(bp);
295 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
296 		dmae->comp_addr_hi = 0;
297 		dmae->comp_val = 1;
298 	}
299 
300 	if (bp->func_stx) {
301 
302 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
303 		dmae->opcode = opcode;
304 		dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, func_stats));
305 		dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, func_stats));
306 		dmae->dst_addr_lo = bp->func_stx >> 2;
307 		dmae->dst_addr_hi = 0;
308 		dmae->len = sizeof(struct host_func_stats) >> 2;
309 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
310 		dmae->comp_addr_hi = 0;
311 		dmae->comp_val = 1;
312 	}
313 
314 	/* MAC */
315 	opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_GRC, DMAE_DST_PCI,
316 				   true, DMAE_COMP_GRC);
317 
318 	/* EMAC is special */
319 	if (bp->link_vars.mac_type == MAC_TYPE_EMAC) {
320 		mac_addr = (port ? GRCBASE_EMAC1 : GRCBASE_EMAC0);
321 
322 		/* EMAC_REG_EMAC_RX_STAT_AC (EMAC_REG_EMAC_RX_STAT_AC_COUNT)*/
323 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
324 		dmae->opcode = opcode;
325 		dmae->src_addr_lo = (mac_addr +
326 				     EMAC_REG_EMAC_RX_STAT_AC) >> 2;
327 		dmae->src_addr_hi = 0;
328 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats));
329 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats));
330 		dmae->len = EMAC_REG_EMAC_RX_STAT_AC_COUNT;
331 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
332 		dmae->comp_addr_hi = 0;
333 		dmae->comp_val = 1;
334 
335 		/* EMAC_REG_EMAC_RX_STAT_AC_28 */
336 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
337 		dmae->opcode = opcode;
338 		dmae->src_addr_lo = (mac_addr +
339 				     EMAC_REG_EMAC_RX_STAT_AC_28) >> 2;
340 		dmae->src_addr_hi = 0;
341 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats) +
342 		     offsetof(struct emac_stats, rx_stat_falsecarriererrors));
343 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats) +
344 		     offsetof(struct emac_stats, rx_stat_falsecarriererrors));
345 		dmae->len = 1;
346 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
347 		dmae->comp_addr_hi = 0;
348 		dmae->comp_val = 1;
349 
350 		/* EMAC_REG_EMAC_TX_STAT_AC (EMAC_REG_EMAC_TX_STAT_AC_COUNT)*/
351 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
352 		dmae->opcode = opcode;
353 		dmae->src_addr_lo = (mac_addr +
354 				     EMAC_REG_EMAC_TX_STAT_AC) >> 2;
355 		dmae->src_addr_hi = 0;
356 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats) +
357 			offsetof(struct emac_stats, tx_stat_ifhcoutoctets));
358 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats) +
359 			offsetof(struct emac_stats, tx_stat_ifhcoutoctets));
360 		dmae->len = EMAC_REG_EMAC_TX_STAT_AC_COUNT;
361 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
362 		dmae->comp_addr_hi = 0;
363 		dmae->comp_val = 1;
364 	} else {
365 		u32 tx_src_addr_lo, rx_src_addr_lo;
366 		u16 rx_len, tx_len;
367 
368 		/* configure the params according to MAC type */
369 		switch (bp->link_vars.mac_type) {
370 		case MAC_TYPE_BMAC:
371 			mac_addr = (port ? NIG_REG_INGRESS_BMAC1_MEM :
372 					   NIG_REG_INGRESS_BMAC0_MEM);
373 
374 			/* BIGMAC_REGISTER_TX_STAT_GTPKT ..
375 			   BIGMAC_REGISTER_TX_STAT_GTBYT */
376 			if (CHIP_IS_E1x(bp)) {
377 				tx_src_addr_lo = (mac_addr +
378 					BIGMAC_REGISTER_TX_STAT_GTPKT) >> 2;
379 				tx_len = (8 + BIGMAC_REGISTER_TX_STAT_GTBYT -
380 					  BIGMAC_REGISTER_TX_STAT_GTPKT) >> 2;
381 				rx_src_addr_lo = (mac_addr +
382 					BIGMAC_REGISTER_RX_STAT_GR64) >> 2;
383 				rx_len = (8 + BIGMAC_REGISTER_RX_STAT_GRIPJ -
384 					  BIGMAC_REGISTER_RX_STAT_GR64) >> 2;
385 			} else {
386 				tx_src_addr_lo = (mac_addr +
387 					BIGMAC2_REGISTER_TX_STAT_GTPOK) >> 2;
388 				tx_len = (8 + BIGMAC2_REGISTER_TX_STAT_GTBYT -
389 					  BIGMAC2_REGISTER_TX_STAT_GTPOK) >> 2;
390 				rx_src_addr_lo = (mac_addr +
391 					BIGMAC2_REGISTER_RX_STAT_GR64) >> 2;
392 				rx_len = (8 + BIGMAC2_REGISTER_RX_STAT_GRIPJ -
393 					  BIGMAC2_REGISTER_RX_STAT_GR64) >> 2;
394 			}
395 			break;
396 
397 		case MAC_TYPE_UMAC: /* handled by MSTAT */
398 		case MAC_TYPE_XMAC: /* handled by MSTAT */
399 		default:
400 			mac_addr = port ? GRCBASE_MSTAT1 : GRCBASE_MSTAT0;
401 			tx_src_addr_lo = (mac_addr +
402 					  MSTAT_REG_TX_STAT_GTXPOK_LO) >> 2;
403 			rx_src_addr_lo = (mac_addr +
404 					  MSTAT_REG_RX_STAT_GR64_LO) >> 2;
405 			tx_len = sizeof(bp->slowpath->
406 					mac_stats.mstat_stats.stats_tx) >> 2;
407 			rx_len = sizeof(bp->slowpath->
408 					mac_stats.mstat_stats.stats_rx) >> 2;
409 			break;
410 		}
411 
412 		/* TX stats */
413 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
414 		dmae->opcode = opcode;
415 		dmae->src_addr_lo = tx_src_addr_lo;
416 		dmae->src_addr_hi = 0;
417 		dmae->len = tx_len;
418 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats));
419 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats));
420 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
421 		dmae->comp_addr_hi = 0;
422 		dmae->comp_val = 1;
423 
424 		/* RX stats */
425 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
426 		dmae->opcode = opcode;
427 		dmae->src_addr_hi = 0;
428 		dmae->src_addr_lo = rx_src_addr_lo;
429 		dmae->dst_addr_lo =
430 			U64_LO(bnx2x_sp_mapping(bp, mac_stats) + (tx_len << 2));
431 		dmae->dst_addr_hi =
432 			U64_HI(bnx2x_sp_mapping(bp, mac_stats) + (tx_len << 2));
433 		dmae->len = rx_len;
434 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
435 		dmae->comp_addr_hi = 0;
436 		dmae->comp_val = 1;
437 	}
438 
439 	/* NIG */
440 	if (!CHIP_IS_E3(bp)) {
441 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
442 		dmae->opcode = opcode;
443 		dmae->src_addr_lo = (port ? NIG_REG_STAT1_EGRESS_MAC_PKT0 :
444 					    NIG_REG_STAT0_EGRESS_MAC_PKT0) >> 2;
445 		dmae->src_addr_hi = 0;
446 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, nig_stats) +
447 				offsetof(struct nig_stats, egress_mac_pkt0_lo));
448 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, nig_stats) +
449 				offsetof(struct nig_stats, egress_mac_pkt0_lo));
450 		dmae->len = (2*sizeof(u32)) >> 2;
451 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
452 		dmae->comp_addr_hi = 0;
453 		dmae->comp_val = 1;
454 
455 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
456 		dmae->opcode = opcode;
457 		dmae->src_addr_lo = (port ? NIG_REG_STAT1_EGRESS_MAC_PKT1 :
458 					    NIG_REG_STAT0_EGRESS_MAC_PKT1) >> 2;
459 		dmae->src_addr_hi = 0;
460 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, nig_stats) +
461 				offsetof(struct nig_stats, egress_mac_pkt1_lo));
462 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, nig_stats) +
463 				offsetof(struct nig_stats, egress_mac_pkt1_lo));
464 		dmae->len = (2*sizeof(u32)) >> 2;
465 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
466 		dmae->comp_addr_hi = 0;
467 		dmae->comp_val = 1;
468 	}
469 
470 	dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
471 	dmae->opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_GRC, DMAE_DST_PCI,
472 						 true, DMAE_COMP_PCI);
473 	dmae->src_addr_lo = (port ? NIG_REG_STAT1_BRB_DISCARD :
474 				    NIG_REG_STAT0_BRB_DISCARD) >> 2;
475 	dmae->src_addr_hi = 0;
476 	dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, nig_stats));
477 	dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, nig_stats));
478 	dmae->len = (sizeof(struct nig_stats) - 4*sizeof(u32)) >> 2;
479 
480 	dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
481 	dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
482 	dmae->comp_val = DMAE_COMP_VAL;
483 
484 	*stats_comp = 0;
485 }
486 
487 static void bnx2x_func_stats_init(struct bnx2x *bp)
488 {
489 	struct dmae_command *dmae = &bp->stats_dmae;
490 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
491 
492 	/* sanity */
493 	if (!bp->func_stx) {
494 		BNX2X_ERR("BUG!\n");
495 		return;
496 	}
497 
498 	bp->executer_idx = 0;
499 	memset(dmae, 0, sizeof(struct dmae_command));
500 
501 	dmae->opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
502 					 true, DMAE_COMP_PCI);
503 	dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, func_stats));
504 	dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, func_stats));
505 	dmae->dst_addr_lo = bp->func_stx >> 2;
506 	dmae->dst_addr_hi = 0;
507 	dmae->len = sizeof(struct host_func_stats) >> 2;
508 	dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
509 	dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
510 	dmae->comp_val = DMAE_COMP_VAL;
511 
512 	*stats_comp = 0;
513 }
514 
515 /* should be called under stats_sema */
516 static void bnx2x_stats_start(struct bnx2x *bp)
517 {
518 	if (IS_PF(bp)) {
519 		if (bp->port.pmf)
520 			bnx2x_port_stats_init(bp);
521 
522 		else if (bp->func_stx)
523 			bnx2x_func_stats_init(bp);
524 
525 		bnx2x_hw_stats_post(bp);
526 		bnx2x_storm_stats_post(bp);
527 	}
528 }
529 
530 static void bnx2x_stats_pmf_start(struct bnx2x *bp)
531 {
532 	bnx2x_stats_comp(bp);
533 	bnx2x_stats_pmf_update(bp);
534 	bnx2x_stats_start(bp);
535 }
536 
537 static void bnx2x_stats_restart(struct bnx2x *bp)
538 {
539 	/* vfs travel through here as part of the statistics FSM, but no action
540 	 * is required
541 	 */
542 	if (IS_VF(bp))
543 		return;
544 
545 	bnx2x_stats_comp(bp);
546 	bnx2x_stats_start(bp);
547 }
548 
549 static void bnx2x_bmac_stats_update(struct bnx2x *bp)
550 {
551 	struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
552 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
553 	struct {
554 		u32 lo;
555 		u32 hi;
556 	} diff;
557 
558 	if (CHIP_IS_E1x(bp)) {
559 		struct bmac1_stats *new = bnx2x_sp(bp, mac_stats.bmac1_stats);
560 
561 		/* the macros below will use "bmac1_stats" type */
562 		UPDATE_STAT64(rx_stat_grerb, rx_stat_ifhcinbadoctets);
563 		UPDATE_STAT64(rx_stat_grfcs, rx_stat_dot3statsfcserrors);
564 		UPDATE_STAT64(rx_stat_grund, rx_stat_etherstatsundersizepkts);
565 		UPDATE_STAT64(rx_stat_grovr, rx_stat_dot3statsframestoolong);
566 		UPDATE_STAT64(rx_stat_grfrg, rx_stat_etherstatsfragments);
567 		UPDATE_STAT64(rx_stat_grjbr, rx_stat_etherstatsjabbers);
568 		UPDATE_STAT64(rx_stat_grxcf, rx_stat_maccontrolframesreceived);
569 		UPDATE_STAT64(rx_stat_grxpf, rx_stat_xoffstateentered);
570 		UPDATE_STAT64(rx_stat_grxpf, rx_stat_mac_xpf);
571 
572 		UPDATE_STAT64(tx_stat_gtxpf, tx_stat_outxoffsent);
573 		UPDATE_STAT64(tx_stat_gtxpf, tx_stat_flowcontroldone);
574 		UPDATE_STAT64(tx_stat_gt64, tx_stat_etherstatspkts64octets);
575 		UPDATE_STAT64(tx_stat_gt127,
576 				tx_stat_etherstatspkts65octetsto127octets);
577 		UPDATE_STAT64(tx_stat_gt255,
578 				tx_stat_etherstatspkts128octetsto255octets);
579 		UPDATE_STAT64(tx_stat_gt511,
580 				tx_stat_etherstatspkts256octetsto511octets);
581 		UPDATE_STAT64(tx_stat_gt1023,
582 				tx_stat_etherstatspkts512octetsto1023octets);
583 		UPDATE_STAT64(tx_stat_gt1518,
584 				tx_stat_etherstatspkts1024octetsto1522octets);
585 		UPDATE_STAT64(tx_stat_gt2047, tx_stat_mac_2047);
586 		UPDATE_STAT64(tx_stat_gt4095, tx_stat_mac_4095);
587 		UPDATE_STAT64(tx_stat_gt9216, tx_stat_mac_9216);
588 		UPDATE_STAT64(tx_stat_gt16383, tx_stat_mac_16383);
589 		UPDATE_STAT64(tx_stat_gterr,
590 				tx_stat_dot3statsinternalmactransmiterrors);
591 		UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
592 
593 	} else {
594 		struct bmac2_stats *new = bnx2x_sp(bp, mac_stats.bmac2_stats);
595 
596 		/* the macros below will use "bmac2_stats" type */
597 		UPDATE_STAT64(rx_stat_grerb, rx_stat_ifhcinbadoctets);
598 		UPDATE_STAT64(rx_stat_grfcs, rx_stat_dot3statsfcserrors);
599 		UPDATE_STAT64(rx_stat_grund, rx_stat_etherstatsundersizepkts);
600 		UPDATE_STAT64(rx_stat_grovr, rx_stat_dot3statsframestoolong);
601 		UPDATE_STAT64(rx_stat_grfrg, rx_stat_etherstatsfragments);
602 		UPDATE_STAT64(rx_stat_grjbr, rx_stat_etherstatsjabbers);
603 		UPDATE_STAT64(rx_stat_grxcf, rx_stat_maccontrolframesreceived);
604 		UPDATE_STAT64(rx_stat_grxpf, rx_stat_xoffstateentered);
605 		UPDATE_STAT64(rx_stat_grxpf, rx_stat_mac_xpf);
606 		UPDATE_STAT64(tx_stat_gtxpf, tx_stat_outxoffsent);
607 		UPDATE_STAT64(tx_stat_gtxpf, tx_stat_flowcontroldone);
608 		UPDATE_STAT64(tx_stat_gt64, tx_stat_etherstatspkts64octets);
609 		UPDATE_STAT64(tx_stat_gt127,
610 				tx_stat_etherstatspkts65octetsto127octets);
611 		UPDATE_STAT64(tx_stat_gt255,
612 				tx_stat_etherstatspkts128octetsto255octets);
613 		UPDATE_STAT64(tx_stat_gt511,
614 				tx_stat_etherstatspkts256octetsto511octets);
615 		UPDATE_STAT64(tx_stat_gt1023,
616 				tx_stat_etherstatspkts512octetsto1023octets);
617 		UPDATE_STAT64(tx_stat_gt1518,
618 				tx_stat_etherstatspkts1024octetsto1522octets);
619 		UPDATE_STAT64(tx_stat_gt2047, tx_stat_mac_2047);
620 		UPDATE_STAT64(tx_stat_gt4095, tx_stat_mac_4095);
621 		UPDATE_STAT64(tx_stat_gt9216, tx_stat_mac_9216);
622 		UPDATE_STAT64(tx_stat_gt16383, tx_stat_mac_16383);
623 		UPDATE_STAT64(tx_stat_gterr,
624 				tx_stat_dot3statsinternalmactransmiterrors);
625 		UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
626 
627 		/* collect PFC stats */
628 		pstats->pfc_frames_tx_hi = new->tx_stat_gtpp_hi;
629 		pstats->pfc_frames_tx_lo = new->tx_stat_gtpp_lo;
630 
631 		pstats->pfc_frames_rx_hi = new->rx_stat_grpp_hi;
632 		pstats->pfc_frames_rx_lo = new->rx_stat_grpp_lo;
633 	}
634 
635 	estats->pause_frames_received_hi =
636 				pstats->mac_stx[1].rx_stat_mac_xpf_hi;
637 	estats->pause_frames_received_lo =
638 				pstats->mac_stx[1].rx_stat_mac_xpf_lo;
639 
640 	estats->pause_frames_sent_hi =
641 				pstats->mac_stx[1].tx_stat_outxoffsent_hi;
642 	estats->pause_frames_sent_lo =
643 				pstats->mac_stx[1].tx_stat_outxoffsent_lo;
644 
645 	estats->pfc_frames_received_hi =
646 				pstats->pfc_frames_rx_hi;
647 	estats->pfc_frames_received_lo =
648 				pstats->pfc_frames_rx_lo;
649 	estats->pfc_frames_sent_hi =
650 				pstats->pfc_frames_tx_hi;
651 	estats->pfc_frames_sent_lo =
652 				pstats->pfc_frames_tx_lo;
653 }
654 
655 static void bnx2x_mstat_stats_update(struct bnx2x *bp)
656 {
657 	struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
658 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
659 
660 	struct mstat_stats *new = bnx2x_sp(bp, mac_stats.mstat_stats);
661 
662 	ADD_STAT64(stats_rx.rx_grerb, rx_stat_ifhcinbadoctets);
663 	ADD_STAT64(stats_rx.rx_grfcs, rx_stat_dot3statsfcserrors);
664 	ADD_STAT64(stats_rx.rx_grund, rx_stat_etherstatsundersizepkts);
665 	ADD_STAT64(stats_rx.rx_grovr, rx_stat_dot3statsframestoolong);
666 	ADD_STAT64(stats_rx.rx_grfrg, rx_stat_etherstatsfragments);
667 	ADD_STAT64(stats_rx.rx_grxcf, rx_stat_maccontrolframesreceived);
668 	ADD_STAT64(stats_rx.rx_grxpf, rx_stat_xoffstateentered);
669 	ADD_STAT64(stats_rx.rx_grxpf, rx_stat_mac_xpf);
670 	ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_outxoffsent);
671 	ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_flowcontroldone);
672 
673 	/* collect pfc stats */
674 	ADD_64(pstats->pfc_frames_tx_hi, new->stats_tx.tx_gtxpp_hi,
675 		pstats->pfc_frames_tx_lo, new->stats_tx.tx_gtxpp_lo);
676 	ADD_64(pstats->pfc_frames_rx_hi, new->stats_rx.rx_grxpp_hi,
677 		pstats->pfc_frames_rx_lo, new->stats_rx.rx_grxpp_lo);
678 
679 	ADD_STAT64(stats_tx.tx_gt64, tx_stat_etherstatspkts64octets);
680 	ADD_STAT64(stats_tx.tx_gt127,
681 			tx_stat_etherstatspkts65octetsto127octets);
682 	ADD_STAT64(stats_tx.tx_gt255,
683 			tx_stat_etherstatspkts128octetsto255octets);
684 	ADD_STAT64(stats_tx.tx_gt511,
685 			tx_stat_etherstatspkts256octetsto511octets);
686 	ADD_STAT64(stats_tx.tx_gt1023,
687 			tx_stat_etherstatspkts512octetsto1023octets);
688 	ADD_STAT64(stats_tx.tx_gt1518,
689 			tx_stat_etherstatspkts1024octetsto1522octets);
690 	ADD_STAT64(stats_tx.tx_gt2047, tx_stat_mac_2047);
691 
692 	ADD_STAT64(stats_tx.tx_gt4095, tx_stat_mac_4095);
693 	ADD_STAT64(stats_tx.tx_gt9216, tx_stat_mac_9216);
694 	ADD_STAT64(stats_tx.tx_gt16383, tx_stat_mac_16383);
695 
696 	ADD_STAT64(stats_tx.tx_gterr,
697 			tx_stat_dot3statsinternalmactransmiterrors);
698 	ADD_STAT64(stats_tx.tx_gtufl, tx_stat_mac_ufl);
699 
700 	estats->etherstatspkts1024octetsto1522octets_hi =
701 	    pstats->mac_stx[1].tx_stat_etherstatspkts1024octetsto1522octets_hi;
702 	estats->etherstatspkts1024octetsto1522octets_lo =
703 	    pstats->mac_stx[1].tx_stat_etherstatspkts1024octetsto1522octets_lo;
704 
705 	estats->etherstatspktsover1522octets_hi =
706 	    pstats->mac_stx[1].tx_stat_mac_2047_hi;
707 	estats->etherstatspktsover1522octets_lo =
708 	    pstats->mac_stx[1].tx_stat_mac_2047_lo;
709 
710 	ADD_64(estats->etherstatspktsover1522octets_hi,
711 	       pstats->mac_stx[1].tx_stat_mac_4095_hi,
712 	       estats->etherstatspktsover1522octets_lo,
713 	       pstats->mac_stx[1].tx_stat_mac_4095_lo);
714 
715 	ADD_64(estats->etherstatspktsover1522octets_hi,
716 	       pstats->mac_stx[1].tx_stat_mac_9216_hi,
717 	       estats->etherstatspktsover1522octets_lo,
718 	       pstats->mac_stx[1].tx_stat_mac_9216_lo);
719 
720 	ADD_64(estats->etherstatspktsover1522octets_hi,
721 	       pstats->mac_stx[1].tx_stat_mac_16383_hi,
722 	       estats->etherstatspktsover1522octets_lo,
723 	       pstats->mac_stx[1].tx_stat_mac_16383_lo);
724 
725 	estats->pause_frames_received_hi =
726 				pstats->mac_stx[1].rx_stat_mac_xpf_hi;
727 	estats->pause_frames_received_lo =
728 				pstats->mac_stx[1].rx_stat_mac_xpf_lo;
729 
730 	estats->pause_frames_sent_hi =
731 				pstats->mac_stx[1].tx_stat_outxoffsent_hi;
732 	estats->pause_frames_sent_lo =
733 				pstats->mac_stx[1].tx_stat_outxoffsent_lo;
734 
735 	estats->pfc_frames_received_hi =
736 				pstats->pfc_frames_rx_hi;
737 	estats->pfc_frames_received_lo =
738 				pstats->pfc_frames_rx_lo;
739 	estats->pfc_frames_sent_hi =
740 				pstats->pfc_frames_tx_hi;
741 	estats->pfc_frames_sent_lo =
742 				pstats->pfc_frames_tx_lo;
743 }
744 
745 static void bnx2x_emac_stats_update(struct bnx2x *bp)
746 {
747 	struct emac_stats *new = bnx2x_sp(bp, mac_stats.emac_stats);
748 	struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
749 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
750 
751 	UPDATE_EXTEND_STAT(rx_stat_ifhcinbadoctets);
752 	UPDATE_EXTEND_STAT(tx_stat_ifhcoutbadoctets);
753 	UPDATE_EXTEND_STAT(rx_stat_dot3statsfcserrors);
754 	UPDATE_EXTEND_STAT(rx_stat_dot3statsalignmenterrors);
755 	UPDATE_EXTEND_STAT(rx_stat_dot3statscarriersenseerrors);
756 	UPDATE_EXTEND_STAT(rx_stat_falsecarriererrors);
757 	UPDATE_EXTEND_STAT(rx_stat_etherstatsundersizepkts);
758 	UPDATE_EXTEND_STAT(rx_stat_dot3statsframestoolong);
759 	UPDATE_EXTEND_STAT(rx_stat_etherstatsfragments);
760 	UPDATE_EXTEND_STAT(rx_stat_etherstatsjabbers);
761 	UPDATE_EXTEND_STAT(rx_stat_maccontrolframesreceived);
762 	UPDATE_EXTEND_STAT(rx_stat_xoffstateentered);
763 	UPDATE_EXTEND_STAT(rx_stat_xonpauseframesreceived);
764 	UPDATE_EXTEND_STAT(rx_stat_xoffpauseframesreceived);
765 	UPDATE_EXTEND_STAT(tx_stat_outxonsent);
766 	UPDATE_EXTEND_STAT(tx_stat_outxoffsent);
767 	UPDATE_EXTEND_STAT(tx_stat_flowcontroldone);
768 	UPDATE_EXTEND_STAT(tx_stat_etherstatscollisions);
769 	UPDATE_EXTEND_STAT(tx_stat_dot3statssinglecollisionframes);
770 	UPDATE_EXTEND_STAT(tx_stat_dot3statsmultiplecollisionframes);
771 	UPDATE_EXTEND_STAT(tx_stat_dot3statsdeferredtransmissions);
772 	UPDATE_EXTEND_STAT(tx_stat_dot3statsexcessivecollisions);
773 	UPDATE_EXTEND_STAT(tx_stat_dot3statslatecollisions);
774 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts64octets);
775 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts65octetsto127octets);
776 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts128octetsto255octets);
777 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts256octetsto511octets);
778 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts512octetsto1023octets);
779 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts1024octetsto1522octets);
780 	UPDATE_EXTEND_STAT(tx_stat_etherstatspktsover1522octets);
781 	UPDATE_EXTEND_STAT(tx_stat_dot3statsinternalmactransmiterrors);
782 
783 	estats->pause_frames_received_hi =
784 			pstats->mac_stx[1].rx_stat_xonpauseframesreceived_hi;
785 	estats->pause_frames_received_lo =
786 			pstats->mac_stx[1].rx_stat_xonpauseframesreceived_lo;
787 	ADD_64(estats->pause_frames_received_hi,
788 	       pstats->mac_stx[1].rx_stat_xoffpauseframesreceived_hi,
789 	       estats->pause_frames_received_lo,
790 	       pstats->mac_stx[1].rx_stat_xoffpauseframesreceived_lo);
791 
792 	estats->pause_frames_sent_hi =
793 			pstats->mac_stx[1].tx_stat_outxonsent_hi;
794 	estats->pause_frames_sent_lo =
795 			pstats->mac_stx[1].tx_stat_outxonsent_lo;
796 	ADD_64(estats->pause_frames_sent_hi,
797 	       pstats->mac_stx[1].tx_stat_outxoffsent_hi,
798 	       estats->pause_frames_sent_lo,
799 	       pstats->mac_stx[1].tx_stat_outxoffsent_lo);
800 }
801 
802 static int bnx2x_hw_stats_update(struct bnx2x *bp)
803 {
804 	struct nig_stats *new = bnx2x_sp(bp, nig_stats);
805 	struct nig_stats *old = &(bp->port.old_nig_stats);
806 	struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
807 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
808 	struct {
809 		u32 lo;
810 		u32 hi;
811 	} diff;
812 
813 	switch (bp->link_vars.mac_type) {
814 	case MAC_TYPE_BMAC:
815 		bnx2x_bmac_stats_update(bp);
816 		break;
817 
818 	case MAC_TYPE_EMAC:
819 		bnx2x_emac_stats_update(bp);
820 		break;
821 
822 	case MAC_TYPE_UMAC:
823 	case MAC_TYPE_XMAC:
824 		bnx2x_mstat_stats_update(bp);
825 		break;
826 
827 	case MAC_TYPE_NONE: /* unreached */
828 		DP(BNX2X_MSG_STATS,
829 		   "stats updated by DMAE but no MAC active\n");
830 		return -1;
831 
832 	default: /* unreached */
833 		BNX2X_ERR("Unknown MAC type\n");
834 	}
835 
836 	ADD_EXTEND_64(pstats->brb_drop_hi, pstats->brb_drop_lo,
837 		      new->brb_discard - old->brb_discard);
838 	ADD_EXTEND_64(estats->brb_truncate_hi, estats->brb_truncate_lo,
839 		      new->brb_truncate - old->brb_truncate);
840 
841 	if (!CHIP_IS_E3(bp)) {
842 		UPDATE_STAT64_NIG(egress_mac_pkt0,
843 					etherstatspkts1024octetsto1522octets);
844 		UPDATE_STAT64_NIG(egress_mac_pkt1,
845 					etherstatspktsover1522octets);
846 	}
847 
848 	memcpy(old, new, sizeof(struct nig_stats));
849 
850 	memcpy(&(estats->rx_stat_ifhcinbadoctets_hi), &(pstats->mac_stx[1]),
851 	       sizeof(struct mac_stx));
852 	estats->brb_drop_hi = pstats->brb_drop_hi;
853 	estats->brb_drop_lo = pstats->brb_drop_lo;
854 
855 	pstats->host_port_stats_counter++;
856 
857 	if (CHIP_IS_E3(bp)) {
858 		u32 lpi_reg = BP_PORT(bp) ? MISC_REG_CPMU_LP_SM_ENT_CNT_P1
859 					  : MISC_REG_CPMU_LP_SM_ENT_CNT_P0;
860 		estats->eee_tx_lpi += REG_RD(bp, lpi_reg);
861 	}
862 
863 	if (!BP_NOMCP(bp)) {
864 		u32 nig_timer_max =
865 			SHMEM_RD(bp, port_mb[BP_PORT(bp)].stat_nig_timer);
866 		if (nig_timer_max != estats->nig_timer_max) {
867 			estats->nig_timer_max = nig_timer_max;
868 			BNX2X_ERR("NIG timer max (%u)\n",
869 				  estats->nig_timer_max);
870 		}
871 	}
872 
873 	return 0;
874 }
875 
876 static int bnx2x_storm_stats_validate_counters(struct bnx2x *bp)
877 {
878 	struct stats_counter *counters = &bp->fw_stats_data->storm_counters;
879 	u16 cur_stats_counter;
880 	/* Make sure we use the value of the counter
881 	 * used for sending the last stats ramrod.
882 	 */
883 	cur_stats_counter = bp->stats_counter - 1;
884 
885 	/* are storm stats valid? */
886 	if (le16_to_cpu(counters->xstats_counter) != cur_stats_counter) {
887 		DP(BNX2X_MSG_STATS,
888 		   "stats not updated by xstorm  xstorm counter (0x%x) != stats_counter (0x%x)\n",
889 		   le16_to_cpu(counters->xstats_counter), bp->stats_counter);
890 		return -EAGAIN;
891 	}
892 
893 	if (le16_to_cpu(counters->ustats_counter) != cur_stats_counter) {
894 		DP(BNX2X_MSG_STATS,
895 		   "stats not updated by ustorm  ustorm counter (0x%x) != stats_counter (0x%x)\n",
896 		   le16_to_cpu(counters->ustats_counter), bp->stats_counter);
897 		return -EAGAIN;
898 	}
899 
900 	if (le16_to_cpu(counters->cstats_counter) != cur_stats_counter) {
901 		DP(BNX2X_MSG_STATS,
902 		   "stats not updated by cstorm  cstorm counter (0x%x) != stats_counter (0x%x)\n",
903 		   le16_to_cpu(counters->cstats_counter), bp->stats_counter);
904 		return -EAGAIN;
905 	}
906 
907 	if (le16_to_cpu(counters->tstats_counter) != cur_stats_counter) {
908 		DP(BNX2X_MSG_STATS,
909 		   "stats not updated by tstorm  tstorm counter (0x%x) != stats_counter (0x%x)\n",
910 		   le16_to_cpu(counters->tstats_counter), bp->stats_counter);
911 		return -EAGAIN;
912 	}
913 	return 0;
914 }
915 
916 static int bnx2x_storm_stats_update(struct bnx2x *bp)
917 {
918 	struct tstorm_per_port_stats *tport =
919 				&bp->fw_stats_data->port.tstorm_port_statistics;
920 	struct tstorm_per_pf_stats *tfunc =
921 				&bp->fw_stats_data->pf.tstorm_pf_statistics;
922 	struct host_func_stats *fstats = &bp->func_stats;
923 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
924 	struct bnx2x_eth_stats_old *estats_old = &bp->eth_stats_old;
925 	int i;
926 
927 	/* vfs stat counter is managed by pf */
928 	if (IS_PF(bp) && bnx2x_storm_stats_validate_counters(bp))
929 		return -EAGAIN;
930 
931 	estats->error_bytes_received_hi = 0;
932 	estats->error_bytes_received_lo = 0;
933 
934 	for_each_eth_queue(bp, i) {
935 		struct bnx2x_fastpath *fp = &bp->fp[i];
936 		struct tstorm_per_queue_stats *tclient =
937 			&bp->fw_stats_data->queue_stats[i].
938 			tstorm_queue_statistics;
939 		struct tstorm_per_queue_stats *old_tclient =
940 			&bnx2x_fp_stats(bp, fp)->old_tclient;
941 		struct ustorm_per_queue_stats *uclient =
942 			&bp->fw_stats_data->queue_stats[i].
943 			ustorm_queue_statistics;
944 		struct ustorm_per_queue_stats *old_uclient =
945 			&bnx2x_fp_stats(bp, fp)->old_uclient;
946 		struct xstorm_per_queue_stats *xclient =
947 			&bp->fw_stats_data->queue_stats[i].
948 			xstorm_queue_statistics;
949 		struct xstorm_per_queue_stats *old_xclient =
950 			&bnx2x_fp_stats(bp, fp)->old_xclient;
951 		struct bnx2x_eth_q_stats *qstats =
952 			&bnx2x_fp_stats(bp, fp)->eth_q_stats;
953 		struct bnx2x_eth_q_stats_old *qstats_old =
954 			&bnx2x_fp_stats(bp, fp)->eth_q_stats_old;
955 
956 		u32 diff;
957 
958 		DP(BNX2X_MSG_STATS, "queue[%d]: ucast_sent 0x%x, bcast_sent 0x%x mcast_sent 0x%x\n",
959 		   i, xclient->ucast_pkts_sent,
960 		   xclient->bcast_pkts_sent, xclient->mcast_pkts_sent);
961 
962 		DP(BNX2X_MSG_STATS, "---------------\n");
963 
964 		UPDATE_QSTAT(tclient->rcv_bcast_bytes,
965 			     total_broadcast_bytes_received);
966 		UPDATE_QSTAT(tclient->rcv_mcast_bytes,
967 			     total_multicast_bytes_received);
968 		UPDATE_QSTAT(tclient->rcv_ucast_bytes,
969 			     total_unicast_bytes_received);
970 
971 		/*
972 		 * sum to total_bytes_received all
973 		 * unicast/multicast/broadcast
974 		 */
975 		qstats->total_bytes_received_hi =
976 			qstats->total_broadcast_bytes_received_hi;
977 		qstats->total_bytes_received_lo =
978 			qstats->total_broadcast_bytes_received_lo;
979 
980 		ADD_64(qstats->total_bytes_received_hi,
981 		       qstats->total_multicast_bytes_received_hi,
982 		       qstats->total_bytes_received_lo,
983 		       qstats->total_multicast_bytes_received_lo);
984 
985 		ADD_64(qstats->total_bytes_received_hi,
986 		       qstats->total_unicast_bytes_received_hi,
987 		       qstats->total_bytes_received_lo,
988 		       qstats->total_unicast_bytes_received_lo);
989 
990 		qstats->valid_bytes_received_hi =
991 					qstats->total_bytes_received_hi;
992 		qstats->valid_bytes_received_lo =
993 					qstats->total_bytes_received_lo;
994 
995 		UPDATE_EXTEND_TSTAT(rcv_ucast_pkts,
996 					total_unicast_packets_received);
997 		UPDATE_EXTEND_TSTAT(rcv_mcast_pkts,
998 					total_multicast_packets_received);
999 		UPDATE_EXTEND_TSTAT(rcv_bcast_pkts,
1000 					total_broadcast_packets_received);
1001 		UPDATE_EXTEND_E_TSTAT(pkts_too_big_discard,
1002 				      etherstatsoverrsizepkts, 32);
1003 		UPDATE_EXTEND_E_TSTAT(no_buff_discard, no_buff_discard, 16);
1004 
1005 		SUB_EXTEND_USTAT(ucast_no_buff_pkts,
1006 					total_unicast_packets_received);
1007 		SUB_EXTEND_USTAT(mcast_no_buff_pkts,
1008 					total_multicast_packets_received);
1009 		SUB_EXTEND_USTAT(bcast_no_buff_pkts,
1010 					total_broadcast_packets_received);
1011 		UPDATE_EXTEND_E_USTAT(ucast_no_buff_pkts, no_buff_discard);
1012 		UPDATE_EXTEND_E_USTAT(mcast_no_buff_pkts, no_buff_discard);
1013 		UPDATE_EXTEND_E_USTAT(bcast_no_buff_pkts, no_buff_discard);
1014 
1015 		UPDATE_QSTAT(xclient->bcast_bytes_sent,
1016 			     total_broadcast_bytes_transmitted);
1017 		UPDATE_QSTAT(xclient->mcast_bytes_sent,
1018 			     total_multicast_bytes_transmitted);
1019 		UPDATE_QSTAT(xclient->ucast_bytes_sent,
1020 			     total_unicast_bytes_transmitted);
1021 
1022 		/*
1023 		 * sum to total_bytes_transmitted all
1024 		 * unicast/multicast/broadcast
1025 		 */
1026 		qstats->total_bytes_transmitted_hi =
1027 				qstats->total_unicast_bytes_transmitted_hi;
1028 		qstats->total_bytes_transmitted_lo =
1029 				qstats->total_unicast_bytes_transmitted_lo;
1030 
1031 		ADD_64(qstats->total_bytes_transmitted_hi,
1032 		       qstats->total_broadcast_bytes_transmitted_hi,
1033 		       qstats->total_bytes_transmitted_lo,
1034 		       qstats->total_broadcast_bytes_transmitted_lo);
1035 
1036 		ADD_64(qstats->total_bytes_transmitted_hi,
1037 		       qstats->total_multicast_bytes_transmitted_hi,
1038 		       qstats->total_bytes_transmitted_lo,
1039 		       qstats->total_multicast_bytes_transmitted_lo);
1040 
1041 		UPDATE_EXTEND_XSTAT(ucast_pkts_sent,
1042 					total_unicast_packets_transmitted);
1043 		UPDATE_EXTEND_XSTAT(mcast_pkts_sent,
1044 					total_multicast_packets_transmitted);
1045 		UPDATE_EXTEND_XSTAT(bcast_pkts_sent,
1046 					total_broadcast_packets_transmitted);
1047 
1048 		UPDATE_EXTEND_TSTAT(checksum_discard,
1049 				    total_packets_received_checksum_discarded);
1050 		UPDATE_EXTEND_TSTAT(ttl0_discard,
1051 				    total_packets_received_ttl0_discarded);
1052 
1053 		UPDATE_EXTEND_XSTAT(error_drop_pkts,
1054 				    total_transmitted_dropped_packets_error);
1055 
1056 		/* TPA aggregations completed */
1057 		UPDATE_EXTEND_E_USTAT(coalesced_events, total_tpa_aggregations);
1058 		/* Number of network frames aggregated by TPA */
1059 		UPDATE_EXTEND_E_USTAT(coalesced_pkts,
1060 				      total_tpa_aggregated_frames);
1061 		/* Total number of bytes in completed TPA aggregations */
1062 		UPDATE_QSTAT(uclient->coalesced_bytes, total_tpa_bytes);
1063 
1064 		UPDATE_ESTAT_QSTAT_64(total_tpa_bytes);
1065 
1066 		UPDATE_FSTAT_QSTAT(total_bytes_received);
1067 		UPDATE_FSTAT_QSTAT(total_bytes_transmitted);
1068 		UPDATE_FSTAT_QSTAT(total_unicast_packets_received);
1069 		UPDATE_FSTAT_QSTAT(total_multicast_packets_received);
1070 		UPDATE_FSTAT_QSTAT(total_broadcast_packets_received);
1071 		UPDATE_FSTAT_QSTAT(total_unicast_packets_transmitted);
1072 		UPDATE_FSTAT_QSTAT(total_multicast_packets_transmitted);
1073 		UPDATE_FSTAT_QSTAT(total_broadcast_packets_transmitted);
1074 		UPDATE_FSTAT_QSTAT(valid_bytes_received);
1075 	}
1076 
1077 	ADD_64(estats->total_bytes_received_hi,
1078 	       estats->rx_stat_ifhcinbadoctets_hi,
1079 	       estats->total_bytes_received_lo,
1080 	       estats->rx_stat_ifhcinbadoctets_lo);
1081 
1082 	ADD_64_LE(estats->total_bytes_received_hi,
1083 		  tfunc->rcv_error_bytes.hi,
1084 		  estats->total_bytes_received_lo,
1085 		  tfunc->rcv_error_bytes.lo);
1086 
1087 	ADD_64_LE(estats->error_bytes_received_hi,
1088 		  tfunc->rcv_error_bytes.hi,
1089 		  estats->error_bytes_received_lo,
1090 		  tfunc->rcv_error_bytes.lo);
1091 
1092 	UPDATE_ESTAT(etherstatsoverrsizepkts, rx_stat_dot3statsframestoolong);
1093 
1094 	ADD_64(estats->error_bytes_received_hi,
1095 	       estats->rx_stat_ifhcinbadoctets_hi,
1096 	       estats->error_bytes_received_lo,
1097 	       estats->rx_stat_ifhcinbadoctets_lo);
1098 
1099 	if (bp->port.pmf) {
1100 		struct bnx2x_fw_port_stats_old *fwstats = &bp->fw_stats_old;
1101 		UPDATE_FW_STAT(mac_filter_discard);
1102 		UPDATE_FW_STAT(mf_tag_discard);
1103 		UPDATE_FW_STAT(brb_truncate_discard);
1104 		UPDATE_FW_STAT(mac_discard);
1105 	}
1106 
1107 	fstats->host_func_stats_start = ++fstats->host_func_stats_end;
1108 
1109 	bp->stats_pending = 0;
1110 
1111 	return 0;
1112 }
1113 
1114 static void bnx2x_net_stats_update(struct bnx2x *bp)
1115 {
1116 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
1117 	struct net_device_stats *nstats = &bp->dev->stats;
1118 	unsigned long tmp;
1119 	int i;
1120 
1121 	nstats->rx_packets =
1122 		bnx2x_hilo(&estats->total_unicast_packets_received_hi) +
1123 		bnx2x_hilo(&estats->total_multicast_packets_received_hi) +
1124 		bnx2x_hilo(&estats->total_broadcast_packets_received_hi);
1125 
1126 	nstats->tx_packets =
1127 		bnx2x_hilo(&estats->total_unicast_packets_transmitted_hi) +
1128 		bnx2x_hilo(&estats->total_multicast_packets_transmitted_hi) +
1129 		bnx2x_hilo(&estats->total_broadcast_packets_transmitted_hi);
1130 
1131 	nstats->rx_bytes = bnx2x_hilo(&estats->total_bytes_received_hi);
1132 
1133 	nstats->tx_bytes = bnx2x_hilo(&estats->total_bytes_transmitted_hi);
1134 
1135 	tmp = estats->mac_discard;
1136 	for_each_rx_queue(bp, i) {
1137 		struct tstorm_per_queue_stats *old_tclient =
1138 			&bp->fp_stats[i].old_tclient;
1139 		tmp += le32_to_cpu(old_tclient->checksum_discard);
1140 	}
1141 	nstats->rx_dropped = tmp + bp->net_stats_old.rx_dropped;
1142 
1143 	nstats->tx_dropped = 0;
1144 
1145 	nstats->multicast =
1146 		bnx2x_hilo(&estats->total_multicast_packets_received_hi);
1147 
1148 	nstats->collisions =
1149 		bnx2x_hilo(&estats->tx_stat_etherstatscollisions_hi);
1150 
1151 	nstats->rx_length_errors =
1152 		bnx2x_hilo(&estats->rx_stat_etherstatsundersizepkts_hi) +
1153 		bnx2x_hilo(&estats->etherstatsoverrsizepkts_hi);
1154 	nstats->rx_over_errors = bnx2x_hilo(&estats->brb_drop_hi) +
1155 				 bnx2x_hilo(&estats->brb_truncate_hi);
1156 	nstats->rx_crc_errors =
1157 		bnx2x_hilo(&estats->rx_stat_dot3statsfcserrors_hi);
1158 	nstats->rx_frame_errors =
1159 		bnx2x_hilo(&estats->rx_stat_dot3statsalignmenterrors_hi);
1160 	nstats->rx_fifo_errors = bnx2x_hilo(&estats->no_buff_discard_hi);
1161 	nstats->rx_missed_errors = 0;
1162 
1163 	nstats->rx_errors = nstats->rx_length_errors +
1164 			    nstats->rx_over_errors +
1165 			    nstats->rx_crc_errors +
1166 			    nstats->rx_frame_errors +
1167 			    nstats->rx_fifo_errors +
1168 			    nstats->rx_missed_errors;
1169 
1170 	nstats->tx_aborted_errors =
1171 		bnx2x_hilo(&estats->tx_stat_dot3statslatecollisions_hi) +
1172 		bnx2x_hilo(&estats->tx_stat_dot3statsexcessivecollisions_hi);
1173 	nstats->tx_carrier_errors =
1174 		bnx2x_hilo(&estats->rx_stat_dot3statscarriersenseerrors_hi);
1175 	nstats->tx_fifo_errors = 0;
1176 	nstats->tx_heartbeat_errors = 0;
1177 	nstats->tx_window_errors = 0;
1178 
1179 	nstats->tx_errors = nstats->tx_aborted_errors +
1180 			    nstats->tx_carrier_errors +
1181 	    bnx2x_hilo(&estats->tx_stat_dot3statsinternalmactransmiterrors_hi);
1182 }
1183 
1184 static void bnx2x_drv_stats_update(struct bnx2x *bp)
1185 {
1186 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
1187 	int i;
1188 
1189 	for_each_queue(bp, i) {
1190 		struct bnx2x_eth_q_stats *qstats = &bp->fp_stats[i].eth_q_stats;
1191 		struct bnx2x_eth_q_stats_old *qstats_old =
1192 			&bp->fp_stats[i].eth_q_stats_old;
1193 
1194 		UPDATE_ESTAT_QSTAT(driver_xoff);
1195 		UPDATE_ESTAT_QSTAT(rx_err_discard_pkt);
1196 		UPDATE_ESTAT_QSTAT(rx_skb_alloc_failed);
1197 		UPDATE_ESTAT_QSTAT(hw_csum_err);
1198 		UPDATE_ESTAT_QSTAT(driver_filtered_tx_pkt);
1199 	}
1200 }
1201 
1202 static bool bnx2x_edebug_stats_stopped(struct bnx2x *bp)
1203 {
1204 	u32 val;
1205 
1206 	if (SHMEM2_HAS(bp, edebug_driver_if[1])) {
1207 		val = SHMEM2_RD(bp, edebug_driver_if[1]);
1208 
1209 		if (val == EDEBUG_DRIVER_IF_OP_CODE_DISABLE_STAT)
1210 			return true;
1211 	}
1212 
1213 	return false;
1214 }
1215 
1216 static void bnx2x_stats_update(struct bnx2x *bp)
1217 {
1218 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
1219 
1220 	if (bnx2x_edebug_stats_stopped(bp))
1221 		return;
1222 
1223 	if (IS_PF(bp)) {
1224 		if (*stats_comp != DMAE_COMP_VAL)
1225 			return;
1226 
1227 		if (bp->port.pmf)
1228 			bnx2x_hw_stats_update(bp);
1229 
1230 		if (bnx2x_storm_stats_update(bp)) {
1231 			if (bp->stats_pending++ == 3) {
1232 				BNX2X_ERR("storm stats were not updated for 3 times\n");
1233 				bnx2x_panic();
1234 			}
1235 			return;
1236 		}
1237 	} else {
1238 		/* vf doesn't collect HW statistics, and doesn't get completions
1239 		 * perform only update
1240 		 */
1241 		bnx2x_storm_stats_update(bp);
1242 	}
1243 
1244 	bnx2x_net_stats_update(bp);
1245 	bnx2x_drv_stats_update(bp);
1246 
1247 	/* vf is done */
1248 	if (IS_VF(bp))
1249 		return;
1250 
1251 	if (netif_msg_timer(bp)) {
1252 		struct bnx2x_eth_stats *estats = &bp->eth_stats;
1253 
1254 		netdev_dbg(bp->dev, "brb drops %u  brb truncate %u\n",
1255 		       estats->brb_drop_lo, estats->brb_truncate_lo);
1256 	}
1257 
1258 	bnx2x_hw_stats_post(bp);
1259 	bnx2x_storm_stats_post(bp);
1260 }
1261 
1262 static void bnx2x_port_stats_stop(struct bnx2x *bp)
1263 {
1264 	struct dmae_command *dmae;
1265 	u32 opcode;
1266 	int loader_idx = PMF_DMAE_C(bp);
1267 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
1268 
1269 	bp->executer_idx = 0;
1270 
1271 	opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC, false, 0);
1272 
1273 	if (bp->port.port_stx) {
1274 
1275 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
1276 		if (bp->func_stx)
1277 			dmae->opcode = bnx2x_dmae_opcode_add_comp(
1278 						opcode, DMAE_COMP_GRC);
1279 		else
1280 			dmae->opcode = bnx2x_dmae_opcode_add_comp(
1281 						opcode, DMAE_COMP_PCI);
1282 
1283 		dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
1284 		dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
1285 		dmae->dst_addr_lo = bp->port.port_stx >> 2;
1286 		dmae->dst_addr_hi = 0;
1287 		dmae->len = bnx2x_get_port_stats_dma_len(bp);
1288 		if (bp->func_stx) {
1289 			dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
1290 			dmae->comp_addr_hi = 0;
1291 			dmae->comp_val = 1;
1292 		} else {
1293 			dmae->comp_addr_lo =
1294 				U64_LO(bnx2x_sp_mapping(bp, stats_comp));
1295 			dmae->comp_addr_hi =
1296 				U64_HI(bnx2x_sp_mapping(bp, stats_comp));
1297 			dmae->comp_val = DMAE_COMP_VAL;
1298 
1299 			*stats_comp = 0;
1300 		}
1301 	}
1302 
1303 	if (bp->func_stx) {
1304 
1305 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
1306 		dmae->opcode =
1307 			bnx2x_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
1308 		dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, func_stats));
1309 		dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, func_stats));
1310 		dmae->dst_addr_lo = bp->func_stx >> 2;
1311 		dmae->dst_addr_hi = 0;
1312 		dmae->len = sizeof(struct host_func_stats) >> 2;
1313 		dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
1314 		dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
1315 		dmae->comp_val = DMAE_COMP_VAL;
1316 
1317 		*stats_comp = 0;
1318 	}
1319 }
1320 
1321 static void bnx2x_stats_stop(struct bnx2x *bp)
1322 {
1323 	bool update = false;
1324 
1325 	bnx2x_stats_comp(bp);
1326 
1327 	if (bp->port.pmf)
1328 		update = (bnx2x_hw_stats_update(bp) == 0);
1329 
1330 	update |= (bnx2x_storm_stats_update(bp) == 0);
1331 
1332 	if (update) {
1333 		bnx2x_net_stats_update(bp);
1334 
1335 		if (bp->port.pmf)
1336 			bnx2x_port_stats_stop(bp);
1337 
1338 		bnx2x_hw_stats_post(bp);
1339 		bnx2x_stats_comp(bp);
1340 	}
1341 }
1342 
1343 static void bnx2x_stats_do_nothing(struct bnx2x *bp)
1344 {
1345 }
1346 
1347 static const struct {
1348 	void (*action)(struct bnx2x *bp);
1349 	enum bnx2x_stats_state next_state;
1350 } bnx2x_stats_stm[STATS_STATE_MAX][STATS_EVENT_MAX] = {
1351 /* state	event	*/
1352 {
1353 /* DISABLED	PMF	*/ {bnx2x_stats_pmf_update, STATS_STATE_DISABLED},
1354 /*		LINK_UP	*/ {bnx2x_stats_start,      STATS_STATE_ENABLED},
1355 /*		UPDATE	*/ {bnx2x_stats_do_nothing, STATS_STATE_DISABLED},
1356 /*		STOP	*/ {bnx2x_stats_do_nothing, STATS_STATE_DISABLED}
1357 },
1358 {
1359 /* ENABLED	PMF	*/ {bnx2x_stats_pmf_start,  STATS_STATE_ENABLED},
1360 /*		LINK_UP	*/ {bnx2x_stats_restart,    STATS_STATE_ENABLED},
1361 /*		UPDATE	*/ {bnx2x_stats_update,     STATS_STATE_ENABLED},
1362 /*		STOP	*/ {bnx2x_stats_stop,       STATS_STATE_DISABLED}
1363 }
1364 };
1365 
1366 void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event)
1367 {
1368 	enum bnx2x_stats_state state = bp->stats_state;
1369 
1370 	if (unlikely(bp->panic))
1371 		return;
1372 
1373 	/* Statistics update run from timer context, and we don't want to stop
1374 	 * that context in case someone is in the middle of a transition.
1375 	 * For other events, wait a bit until lock is taken.
1376 	 */
1377 	if (down_trylock(&bp->stats_lock)) {
1378 		if (event == STATS_EVENT_UPDATE)
1379 			return;
1380 
1381 		DP(BNX2X_MSG_STATS,
1382 		   "Unlikely stats' lock contention [event %d]\n", event);
1383 		if (unlikely(down_timeout(&bp->stats_lock, HZ / 10))) {
1384 			BNX2X_ERR("Failed to take stats lock [event %d]\n",
1385 				  event);
1386 			return;
1387 		}
1388 	}
1389 
1390 	bnx2x_stats_stm[state][event].action(bp);
1391 	bp->stats_state = bnx2x_stats_stm[state][event].next_state;
1392 
1393 	up(&bp->stats_lock);
1394 
1395 	if ((event != STATS_EVENT_UPDATE) || netif_msg_timer(bp))
1396 		DP(BNX2X_MSG_STATS, "state %d -> event %d -> state %d\n",
1397 		   state, event, bp->stats_state);
1398 }
1399 
1400 static void bnx2x_port_stats_base_init(struct bnx2x *bp)
1401 {
1402 	struct dmae_command *dmae;
1403 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
1404 
1405 	/* sanity */
1406 	if (!bp->port.pmf || !bp->port.port_stx) {
1407 		BNX2X_ERR("BUG!\n");
1408 		return;
1409 	}
1410 
1411 	bp->executer_idx = 0;
1412 
1413 	dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
1414 	dmae->opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
1415 					 true, DMAE_COMP_PCI);
1416 	dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
1417 	dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
1418 	dmae->dst_addr_lo = bp->port.port_stx >> 2;
1419 	dmae->dst_addr_hi = 0;
1420 	dmae->len = bnx2x_get_port_stats_dma_len(bp);
1421 	dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
1422 	dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
1423 	dmae->comp_val = DMAE_COMP_VAL;
1424 
1425 	*stats_comp = 0;
1426 	bnx2x_hw_stats_post(bp);
1427 	bnx2x_stats_comp(bp);
1428 }
1429 
1430 /* This function will prepare the statistics ramrod data the way
1431  * we will only have to increment the statistics counter and
1432  * send the ramrod each time we have to.
1433  */
1434 static void bnx2x_prep_fw_stats_req(struct bnx2x *bp)
1435 {
1436 	int i;
1437 	int first_queue_query_index;
1438 	struct stats_query_header *stats_hdr = &bp->fw_stats_req->hdr;
1439 
1440 	dma_addr_t cur_data_offset;
1441 	struct stats_query_entry *cur_query_entry;
1442 
1443 	stats_hdr->cmd_num = bp->fw_stats_num;
1444 	stats_hdr->drv_stats_counter = 0;
1445 
1446 	/* storm_counters struct contains the counters of completed
1447 	 * statistics requests per storm which are incremented by FW
1448 	 * each time it completes hadning a statistics ramrod. We will
1449 	 * check these counters in the timer handler and discard a
1450 	 * (statistics) ramrod completion.
1451 	 */
1452 	cur_data_offset = bp->fw_stats_data_mapping +
1453 		offsetof(struct bnx2x_fw_stats_data, storm_counters);
1454 
1455 	stats_hdr->stats_counters_addrs.hi =
1456 		cpu_to_le32(U64_HI(cur_data_offset));
1457 	stats_hdr->stats_counters_addrs.lo =
1458 		cpu_to_le32(U64_LO(cur_data_offset));
1459 
1460 	/* prepare to the first stats ramrod (will be completed with
1461 	 * the counters equal to zero) - init counters to somethig different.
1462 	 */
1463 	memset(&bp->fw_stats_data->storm_counters, 0xff,
1464 	       sizeof(struct stats_counter));
1465 
1466 	/**** Port FW statistics data ****/
1467 	cur_data_offset = bp->fw_stats_data_mapping +
1468 		offsetof(struct bnx2x_fw_stats_data, port);
1469 
1470 	cur_query_entry = &bp->fw_stats_req->query[BNX2X_PORT_QUERY_IDX];
1471 
1472 	cur_query_entry->kind = STATS_TYPE_PORT;
1473 	/* For port query index is a DONT CARE */
1474 	cur_query_entry->index = BP_PORT(bp);
1475 	/* For port query funcID is a DONT CARE */
1476 	cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
1477 	cur_query_entry->address.hi = cpu_to_le32(U64_HI(cur_data_offset));
1478 	cur_query_entry->address.lo = cpu_to_le32(U64_LO(cur_data_offset));
1479 
1480 	/**** PF FW statistics data ****/
1481 	cur_data_offset = bp->fw_stats_data_mapping +
1482 		offsetof(struct bnx2x_fw_stats_data, pf);
1483 
1484 	cur_query_entry = &bp->fw_stats_req->query[BNX2X_PF_QUERY_IDX];
1485 
1486 	cur_query_entry->kind = STATS_TYPE_PF;
1487 	/* For PF query index is a DONT CARE */
1488 	cur_query_entry->index = BP_PORT(bp);
1489 	cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
1490 	cur_query_entry->address.hi = cpu_to_le32(U64_HI(cur_data_offset));
1491 	cur_query_entry->address.lo = cpu_to_le32(U64_LO(cur_data_offset));
1492 
1493 	/**** FCoE FW statistics data ****/
1494 	if (!NO_FCOE(bp)) {
1495 		cur_data_offset = bp->fw_stats_data_mapping +
1496 			offsetof(struct bnx2x_fw_stats_data, fcoe);
1497 
1498 		cur_query_entry =
1499 			&bp->fw_stats_req->query[BNX2X_FCOE_QUERY_IDX];
1500 
1501 		cur_query_entry->kind = STATS_TYPE_FCOE;
1502 		/* For FCoE query index is a DONT CARE */
1503 		cur_query_entry->index = BP_PORT(bp);
1504 		cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
1505 		cur_query_entry->address.hi =
1506 			cpu_to_le32(U64_HI(cur_data_offset));
1507 		cur_query_entry->address.lo =
1508 			cpu_to_le32(U64_LO(cur_data_offset));
1509 	}
1510 
1511 	/**** Clients' queries ****/
1512 	cur_data_offset = bp->fw_stats_data_mapping +
1513 		offsetof(struct bnx2x_fw_stats_data, queue_stats);
1514 
1515 	/* first queue query index depends whether FCoE offloaded request will
1516 	 * be included in the ramrod
1517 	 */
1518 	if (!NO_FCOE(bp))
1519 		first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX;
1520 	else
1521 		first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX - 1;
1522 
1523 	for_each_eth_queue(bp, i) {
1524 		cur_query_entry =
1525 			&bp->fw_stats_req->
1526 					query[first_queue_query_index + i];
1527 
1528 		cur_query_entry->kind = STATS_TYPE_QUEUE;
1529 		cur_query_entry->index = bnx2x_stats_id(&bp->fp[i]);
1530 		cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
1531 		cur_query_entry->address.hi =
1532 			cpu_to_le32(U64_HI(cur_data_offset));
1533 		cur_query_entry->address.lo =
1534 			cpu_to_le32(U64_LO(cur_data_offset));
1535 
1536 		cur_data_offset += sizeof(struct per_queue_stats);
1537 	}
1538 
1539 	/* add FCoE queue query if needed */
1540 	if (!NO_FCOE(bp)) {
1541 		cur_query_entry =
1542 			&bp->fw_stats_req->
1543 					query[first_queue_query_index + i];
1544 
1545 		cur_query_entry->kind = STATS_TYPE_QUEUE;
1546 		cur_query_entry->index = bnx2x_stats_id(&bp->fp[FCOE_IDX(bp)]);
1547 		cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
1548 		cur_query_entry->address.hi =
1549 			cpu_to_le32(U64_HI(cur_data_offset));
1550 		cur_query_entry->address.lo =
1551 			cpu_to_le32(U64_LO(cur_data_offset));
1552 	}
1553 }
1554 
1555 void bnx2x_memset_stats(struct bnx2x *bp)
1556 {
1557 	int i;
1558 
1559 	/* function stats */
1560 	for_each_queue(bp, i) {
1561 		struct bnx2x_fp_stats *fp_stats = &bp->fp_stats[i];
1562 
1563 		memset(&fp_stats->old_tclient, 0,
1564 		       sizeof(fp_stats->old_tclient));
1565 		memset(&fp_stats->old_uclient, 0,
1566 		       sizeof(fp_stats->old_uclient));
1567 		memset(&fp_stats->old_xclient, 0,
1568 		       sizeof(fp_stats->old_xclient));
1569 		if (bp->stats_init) {
1570 			memset(&fp_stats->eth_q_stats, 0,
1571 			       sizeof(fp_stats->eth_q_stats));
1572 			memset(&fp_stats->eth_q_stats_old, 0,
1573 			       sizeof(fp_stats->eth_q_stats_old));
1574 		}
1575 	}
1576 
1577 	memset(&bp->dev->stats, 0, sizeof(bp->dev->stats));
1578 
1579 	if (bp->stats_init) {
1580 		memset(&bp->net_stats_old, 0, sizeof(bp->net_stats_old));
1581 		memset(&bp->fw_stats_old, 0, sizeof(bp->fw_stats_old));
1582 		memset(&bp->eth_stats_old, 0, sizeof(bp->eth_stats_old));
1583 		memset(&bp->eth_stats, 0, sizeof(bp->eth_stats));
1584 		memset(&bp->func_stats, 0, sizeof(bp->func_stats));
1585 	}
1586 
1587 	bp->stats_state = STATS_STATE_DISABLED;
1588 
1589 	if (bp->port.pmf && bp->port.port_stx)
1590 		bnx2x_port_stats_base_init(bp);
1591 
1592 	/* mark the end of statistics initialization */
1593 	bp->stats_init = false;
1594 }
1595 
1596 void bnx2x_stats_init(struct bnx2x *bp)
1597 {
1598 	int /*abs*/port = BP_PORT(bp);
1599 	int mb_idx = BP_FW_MB_IDX(bp);
1600 
1601 	if (IS_VF(bp)) {
1602 		bnx2x_memset_stats(bp);
1603 		return;
1604 	}
1605 
1606 	bp->stats_pending = 0;
1607 	bp->executer_idx = 0;
1608 	bp->stats_counter = 0;
1609 
1610 	/* port and func stats for management */
1611 	if (!BP_NOMCP(bp)) {
1612 		bp->port.port_stx = SHMEM_RD(bp, port_mb[port].port_stx);
1613 		bp->func_stx = SHMEM_RD(bp, func_mb[mb_idx].fw_mb_param);
1614 
1615 	} else {
1616 		bp->port.port_stx = 0;
1617 		bp->func_stx = 0;
1618 	}
1619 	DP(BNX2X_MSG_STATS, "port_stx 0x%x  func_stx 0x%x\n",
1620 	   bp->port.port_stx, bp->func_stx);
1621 
1622 	/* pmf should retrieve port statistics from SP on a non-init*/
1623 	if (!bp->stats_init && bp->port.pmf && bp->port.port_stx)
1624 		bnx2x_stats_handle(bp, STATS_EVENT_PMF);
1625 
1626 	port = BP_PORT(bp);
1627 	/* port stats */
1628 	memset(&(bp->port.old_nig_stats), 0, sizeof(struct nig_stats));
1629 	bp->port.old_nig_stats.brb_discard =
1630 			REG_RD(bp, NIG_REG_STAT0_BRB_DISCARD + port*0x38);
1631 	bp->port.old_nig_stats.brb_truncate =
1632 			REG_RD(bp, NIG_REG_STAT0_BRB_TRUNCATE + port*0x38);
1633 	if (!CHIP_IS_E3(bp)) {
1634 		REG_RD_DMAE(bp, NIG_REG_STAT0_EGRESS_MAC_PKT0 + port*0x50,
1635 			    &(bp->port.old_nig_stats.egress_mac_pkt0_lo), 2);
1636 		REG_RD_DMAE(bp, NIG_REG_STAT0_EGRESS_MAC_PKT1 + port*0x50,
1637 			    &(bp->port.old_nig_stats.egress_mac_pkt1_lo), 2);
1638 	}
1639 
1640 	/* Prepare statistics ramrod data */
1641 	bnx2x_prep_fw_stats_req(bp);
1642 
1643 	/* Clean SP from previous statistics */
1644 	if (bp->stats_init) {
1645 		if (bp->func_stx) {
1646 			memset(bnx2x_sp(bp, func_stats), 0,
1647 			       sizeof(struct host_func_stats));
1648 			bnx2x_func_stats_init(bp);
1649 			bnx2x_hw_stats_post(bp);
1650 			bnx2x_stats_comp(bp);
1651 		}
1652 	}
1653 
1654 	bnx2x_memset_stats(bp);
1655 }
1656 
1657 void bnx2x_save_statistics(struct bnx2x *bp)
1658 {
1659 	int i;
1660 	struct net_device_stats *nstats = &bp->dev->stats;
1661 
1662 	/* save queue statistics */
1663 	for_each_eth_queue(bp, i) {
1664 		struct bnx2x_fastpath *fp = &bp->fp[i];
1665 		struct bnx2x_eth_q_stats *qstats =
1666 			&bnx2x_fp_stats(bp, fp)->eth_q_stats;
1667 		struct bnx2x_eth_q_stats_old *qstats_old =
1668 			&bnx2x_fp_stats(bp, fp)->eth_q_stats_old;
1669 
1670 		UPDATE_QSTAT_OLD(total_unicast_bytes_received_hi);
1671 		UPDATE_QSTAT_OLD(total_unicast_bytes_received_lo);
1672 		UPDATE_QSTAT_OLD(total_broadcast_bytes_received_hi);
1673 		UPDATE_QSTAT_OLD(total_broadcast_bytes_received_lo);
1674 		UPDATE_QSTAT_OLD(total_multicast_bytes_received_hi);
1675 		UPDATE_QSTAT_OLD(total_multicast_bytes_received_lo);
1676 		UPDATE_QSTAT_OLD(total_unicast_bytes_transmitted_hi);
1677 		UPDATE_QSTAT_OLD(total_unicast_bytes_transmitted_lo);
1678 		UPDATE_QSTAT_OLD(total_broadcast_bytes_transmitted_hi);
1679 		UPDATE_QSTAT_OLD(total_broadcast_bytes_transmitted_lo);
1680 		UPDATE_QSTAT_OLD(total_multicast_bytes_transmitted_hi);
1681 		UPDATE_QSTAT_OLD(total_multicast_bytes_transmitted_lo);
1682 		UPDATE_QSTAT_OLD(total_tpa_bytes_hi);
1683 		UPDATE_QSTAT_OLD(total_tpa_bytes_lo);
1684 	}
1685 
1686 	/* save net_device_stats statistics */
1687 	bp->net_stats_old.rx_dropped = nstats->rx_dropped;
1688 
1689 	/* store port firmware statistics */
1690 	if (bp->port.pmf && IS_MF(bp)) {
1691 		struct bnx2x_eth_stats *estats = &bp->eth_stats;
1692 		struct bnx2x_fw_port_stats_old *fwstats = &bp->fw_stats_old;
1693 		UPDATE_FW_STAT_OLD(mac_filter_discard);
1694 		UPDATE_FW_STAT_OLD(mf_tag_discard);
1695 		UPDATE_FW_STAT_OLD(brb_truncate_discard);
1696 		UPDATE_FW_STAT_OLD(mac_discard);
1697 	}
1698 }
1699 
1700 void bnx2x_afex_collect_stats(struct bnx2x *bp, void *void_afex_stats,
1701 			      u32 stats_type)
1702 {
1703 	int i;
1704 	struct afex_stats *afex_stats = (struct afex_stats *)void_afex_stats;
1705 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
1706 	struct per_queue_stats *fcoe_q_stats =
1707 		&bp->fw_stats_data->queue_stats[FCOE_IDX(bp)];
1708 
1709 	struct tstorm_per_queue_stats *fcoe_q_tstorm_stats =
1710 		&fcoe_q_stats->tstorm_queue_statistics;
1711 
1712 	struct ustorm_per_queue_stats *fcoe_q_ustorm_stats =
1713 		&fcoe_q_stats->ustorm_queue_statistics;
1714 
1715 	struct xstorm_per_queue_stats *fcoe_q_xstorm_stats =
1716 		&fcoe_q_stats->xstorm_queue_statistics;
1717 
1718 	struct fcoe_statistics_params *fw_fcoe_stat =
1719 		&bp->fw_stats_data->fcoe;
1720 
1721 	memset(afex_stats, 0, sizeof(struct afex_stats));
1722 
1723 	for_each_eth_queue(bp, i) {
1724 		struct bnx2x_eth_q_stats *qstats = &bp->fp_stats[i].eth_q_stats;
1725 
1726 		ADD_64(afex_stats->rx_unicast_bytes_hi,
1727 		       qstats->total_unicast_bytes_received_hi,
1728 		       afex_stats->rx_unicast_bytes_lo,
1729 		       qstats->total_unicast_bytes_received_lo);
1730 
1731 		ADD_64(afex_stats->rx_broadcast_bytes_hi,
1732 		       qstats->total_broadcast_bytes_received_hi,
1733 		       afex_stats->rx_broadcast_bytes_lo,
1734 		       qstats->total_broadcast_bytes_received_lo);
1735 
1736 		ADD_64(afex_stats->rx_multicast_bytes_hi,
1737 		       qstats->total_multicast_bytes_received_hi,
1738 		       afex_stats->rx_multicast_bytes_lo,
1739 		       qstats->total_multicast_bytes_received_lo);
1740 
1741 		ADD_64(afex_stats->rx_unicast_frames_hi,
1742 		       qstats->total_unicast_packets_received_hi,
1743 		       afex_stats->rx_unicast_frames_lo,
1744 		       qstats->total_unicast_packets_received_lo);
1745 
1746 		ADD_64(afex_stats->rx_broadcast_frames_hi,
1747 		       qstats->total_broadcast_packets_received_hi,
1748 		       afex_stats->rx_broadcast_frames_lo,
1749 		       qstats->total_broadcast_packets_received_lo);
1750 
1751 		ADD_64(afex_stats->rx_multicast_frames_hi,
1752 		       qstats->total_multicast_packets_received_hi,
1753 		       afex_stats->rx_multicast_frames_lo,
1754 		       qstats->total_multicast_packets_received_lo);
1755 
1756 		/* sum to rx_frames_discarded all discraded
1757 		 * packets due to size, ttl0 and checksum
1758 		 */
1759 		ADD_64(afex_stats->rx_frames_discarded_hi,
1760 		       qstats->total_packets_received_checksum_discarded_hi,
1761 		       afex_stats->rx_frames_discarded_lo,
1762 		       qstats->total_packets_received_checksum_discarded_lo);
1763 
1764 		ADD_64(afex_stats->rx_frames_discarded_hi,
1765 		       qstats->total_packets_received_ttl0_discarded_hi,
1766 		       afex_stats->rx_frames_discarded_lo,
1767 		       qstats->total_packets_received_ttl0_discarded_lo);
1768 
1769 		ADD_64(afex_stats->rx_frames_discarded_hi,
1770 		       qstats->etherstatsoverrsizepkts_hi,
1771 		       afex_stats->rx_frames_discarded_lo,
1772 		       qstats->etherstatsoverrsizepkts_lo);
1773 
1774 		ADD_64(afex_stats->rx_frames_dropped_hi,
1775 		       qstats->no_buff_discard_hi,
1776 		       afex_stats->rx_frames_dropped_lo,
1777 		       qstats->no_buff_discard_lo);
1778 
1779 		ADD_64(afex_stats->tx_unicast_bytes_hi,
1780 		       qstats->total_unicast_bytes_transmitted_hi,
1781 		       afex_stats->tx_unicast_bytes_lo,
1782 		       qstats->total_unicast_bytes_transmitted_lo);
1783 
1784 		ADD_64(afex_stats->tx_broadcast_bytes_hi,
1785 		       qstats->total_broadcast_bytes_transmitted_hi,
1786 		       afex_stats->tx_broadcast_bytes_lo,
1787 		       qstats->total_broadcast_bytes_transmitted_lo);
1788 
1789 		ADD_64(afex_stats->tx_multicast_bytes_hi,
1790 		       qstats->total_multicast_bytes_transmitted_hi,
1791 		       afex_stats->tx_multicast_bytes_lo,
1792 		       qstats->total_multicast_bytes_transmitted_lo);
1793 
1794 		ADD_64(afex_stats->tx_unicast_frames_hi,
1795 		       qstats->total_unicast_packets_transmitted_hi,
1796 		       afex_stats->tx_unicast_frames_lo,
1797 		       qstats->total_unicast_packets_transmitted_lo);
1798 
1799 		ADD_64(afex_stats->tx_broadcast_frames_hi,
1800 		       qstats->total_broadcast_packets_transmitted_hi,
1801 		       afex_stats->tx_broadcast_frames_lo,
1802 		       qstats->total_broadcast_packets_transmitted_lo);
1803 
1804 		ADD_64(afex_stats->tx_multicast_frames_hi,
1805 		       qstats->total_multicast_packets_transmitted_hi,
1806 		       afex_stats->tx_multicast_frames_lo,
1807 		       qstats->total_multicast_packets_transmitted_lo);
1808 
1809 		ADD_64(afex_stats->tx_frames_dropped_hi,
1810 		       qstats->total_transmitted_dropped_packets_error_hi,
1811 		       afex_stats->tx_frames_dropped_lo,
1812 		       qstats->total_transmitted_dropped_packets_error_lo);
1813 	}
1814 
1815 	/* now add FCoE statistics which are collected separately
1816 	 * (both offloaded and non offloaded)
1817 	 */
1818 	if (!NO_FCOE(bp)) {
1819 		ADD_64_LE(afex_stats->rx_unicast_bytes_hi,
1820 			  LE32_0,
1821 			  afex_stats->rx_unicast_bytes_lo,
1822 			  fw_fcoe_stat->rx_stat0.fcoe_rx_byte_cnt);
1823 
1824 		ADD_64_LE(afex_stats->rx_unicast_bytes_hi,
1825 			  fcoe_q_tstorm_stats->rcv_ucast_bytes.hi,
1826 			  afex_stats->rx_unicast_bytes_lo,
1827 			  fcoe_q_tstorm_stats->rcv_ucast_bytes.lo);
1828 
1829 		ADD_64_LE(afex_stats->rx_broadcast_bytes_hi,
1830 			  fcoe_q_tstorm_stats->rcv_bcast_bytes.hi,
1831 			  afex_stats->rx_broadcast_bytes_lo,
1832 			  fcoe_q_tstorm_stats->rcv_bcast_bytes.lo);
1833 
1834 		ADD_64_LE(afex_stats->rx_multicast_bytes_hi,
1835 			  fcoe_q_tstorm_stats->rcv_mcast_bytes.hi,
1836 			  afex_stats->rx_multicast_bytes_lo,
1837 			  fcoe_q_tstorm_stats->rcv_mcast_bytes.lo);
1838 
1839 		ADD_64_LE(afex_stats->rx_unicast_frames_hi,
1840 			  LE32_0,
1841 			  afex_stats->rx_unicast_frames_lo,
1842 			  fw_fcoe_stat->rx_stat0.fcoe_rx_pkt_cnt);
1843 
1844 		ADD_64_LE(afex_stats->rx_unicast_frames_hi,
1845 			  LE32_0,
1846 			  afex_stats->rx_unicast_frames_lo,
1847 			  fcoe_q_tstorm_stats->rcv_ucast_pkts);
1848 
1849 		ADD_64_LE(afex_stats->rx_broadcast_frames_hi,
1850 			  LE32_0,
1851 			  afex_stats->rx_broadcast_frames_lo,
1852 			  fcoe_q_tstorm_stats->rcv_bcast_pkts);
1853 
1854 		ADD_64_LE(afex_stats->rx_multicast_frames_hi,
1855 			  LE32_0,
1856 			  afex_stats->rx_multicast_frames_lo,
1857 			  fcoe_q_tstorm_stats->rcv_ucast_pkts);
1858 
1859 		ADD_64_LE(afex_stats->rx_frames_discarded_hi,
1860 			  LE32_0,
1861 			  afex_stats->rx_frames_discarded_lo,
1862 			  fcoe_q_tstorm_stats->checksum_discard);
1863 
1864 		ADD_64_LE(afex_stats->rx_frames_discarded_hi,
1865 			  LE32_0,
1866 			  afex_stats->rx_frames_discarded_lo,
1867 			  fcoe_q_tstorm_stats->pkts_too_big_discard);
1868 
1869 		ADD_64_LE(afex_stats->rx_frames_discarded_hi,
1870 			  LE32_0,
1871 			  afex_stats->rx_frames_discarded_lo,
1872 			  fcoe_q_tstorm_stats->ttl0_discard);
1873 
1874 		ADD_64_LE16(afex_stats->rx_frames_dropped_hi,
1875 			    LE16_0,
1876 			    afex_stats->rx_frames_dropped_lo,
1877 			    fcoe_q_tstorm_stats->no_buff_discard);
1878 
1879 		ADD_64_LE(afex_stats->rx_frames_dropped_hi,
1880 			  LE32_0,
1881 			  afex_stats->rx_frames_dropped_lo,
1882 			  fcoe_q_ustorm_stats->ucast_no_buff_pkts);
1883 
1884 		ADD_64_LE(afex_stats->rx_frames_dropped_hi,
1885 			  LE32_0,
1886 			  afex_stats->rx_frames_dropped_lo,
1887 			  fcoe_q_ustorm_stats->mcast_no_buff_pkts);
1888 
1889 		ADD_64_LE(afex_stats->rx_frames_dropped_hi,
1890 			  LE32_0,
1891 			  afex_stats->rx_frames_dropped_lo,
1892 			  fcoe_q_ustorm_stats->bcast_no_buff_pkts);
1893 
1894 		ADD_64_LE(afex_stats->rx_frames_dropped_hi,
1895 			  LE32_0,
1896 			  afex_stats->rx_frames_dropped_lo,
1897 			  fw_fcoe_stat->rx_stat1.fcoe_rx_drop_pkt_cnt);
1898 
1899 		ADD_64_LE(afex_stats->rx_frames_dropped_hi,
1900 			  LE32_0,
1901 			  afex_stats->rx_frames_dropped_lo,
1902 			  fw_fcoe_stat->rx_stat2.fcoe_rx_drop_pkt_cnt);
1903 
1904 		ADD_64_LE(afex_stats->tx_unicast_bytes_hi,
1905 			  LE32_0,
1906 			  afex_stats->tx_unicast_bytes_lo,
1907 			  fw_fcoe_stat->tx_stat.fcoe_tx_byte_cnt);
1908 
1909 		ADD_64_LE(afex_stats->tx_unicast_bytes_hi,
1910 			  fcoe_q_xstorm_stats->ucast_bytes_sent.hi,
1911 			  afex_stats->tx_unicast_bytes_lo,
1912 			  fcoe_q_xstorm_stats->ucast_bytes_sent.lo);
1913 
1914 		ADD_64_LE(afex_stats->tx_broadcast_bytes_hi,
1915 			  fcoe_q_xstorm_stats->bcast_bytes_sent.hi,
1916 			  afex_stats->tx_broadcast_bytes_lo,
1917 			  fcoe_q_xstorm_stats->bcast_bytes_sent.lo);
1918 
1919 		ADD_64_LE(afex_stats->tx_multicast_bytes_hi,
1920 			  fcoe_q_xstorm_stats->mcast_bytes_sent.hi,
1921 			  afex_stats->tx_multicast_bytes_lo,
1922 			  fcoe_q_xstorm_stats->mcast_bytes_sent.lo);
1923 
1924 		ADD_64_LE(afex_stats->tx_unicast_frames_hi,
1925 			  LE32_0,
1926 			  afex_stats->tx_unicast_frames_lo,
1927 			  fw_fcoe_stat->tx_stat.fcoe_tx_pkt_cnt);
1928 
1929 		ADD_64_LE(afex_stats->tx_unicast_frames_hi,
1930 			  LE32_0,
1931 			  afex_stats->tx_unicast_frames_lo,
1932 			  fcoe_q_xstorm_stats->ucast_pkts_sent);
1933 
1934 		ADD_64_LE(afex_stats->tx_broadcast_frames_hi,
1935 			  LE32_0,
1936 			  afex_stats->tx_broadcast_frames_lo,
1937 			  fcoe_q_xstorm_stats->bcast_pkts_sent);
1938 
1939 		ADD_64_LE(afex_stats->tx_multicast_frames_hi,
1940 			  LE32_0,
1941 			  afex_stats->tx_multicast_frames_lo,
1942 			  fcoe_q_xstorm_stats->mcast_pkts_sent);
1943 
1944 		ADD_64_LE(afex_stats->tx_frames_dropped_hi,
1945 			  LE32_0,
1946 			  afex_stats->tx_frames_dropped_lo,
1947 			  fcoe_q_xstorm_stats->error_drop_pkts);
1948 	}
1949 
1950 	/* if port stats are requested, add them to the PMF
1951 	 * stats, as anyway they will be accumulated by the
1952 	 * MCP before sent to the switch
1953 	 */
1954 	if ((bp->port.pmf) && (stats_type == VICSTATST_UIF_INDEX)) {
1955 		ADD_64(afex_stats->rx_frames_dropped_hi,
1956 		       0,
1957 		       afex_stats->rx_frames_dropped_lo,
1958 		       estats->mac_filter_discard);
1959 		ADD_64(afex_stats->rx_frames_dropped_hi,
1960 		       0,
1961 		       afex_stats->rx_frames_dropped_lo,
1962 		       estats->brb_truncate_discard);
1963 		ADD_64(afex_stats->rx_frames_discarded_hi,
1964 		       0,
1965 		       afex_stats->rx_frames_discarded_lo,
1966 		       estats->mac_discard);
1967 	}
1968 }
1969 
1970 int bnx2x_stats_safe_exec(struct bnx2x *bp,
1971 			  void (func_to_exec)(void *cookie),
1972 			  void *cookie)
1973 {
1974 	int cnt = 10, rc = 0;
1975 
1976 	/* Wait for statistics to end [while blocking further requests],
1977 	 * then run supplied function 'safely'.
1978 	 */
1979 	rc = down_timeout(&bp->stats_lock, HZ / 10);
1980 	if (unlikely(rc)) {
1981 		BNX2X_ERR("Failed to take statistics lock for safe execution\n");
1982 		goto out_no_lock;
1983 	}
1984 
1985 	bnx2x_stats_comp(bp);
1986 	while (bp->stats_pending && cnt--)
1987 		if (bnx2x_storm_stats_update(bp))
1988 			usleep_range(1000, 2000);
1989 	if (bp->stats_pending) {
1990 		BNX2X_ERR("Failed to wait for stats pending to clear [possibly FW is stuck]\n");
1991 		rc = -EBUSY;
1992 		goto out;
1993 	}
1994 
1995 	func_to_exec(cookie);
1996 
1997 out:
1998 	/* No need to restart statistics - if they're enabled, the timer
1999 	 * will restart the statistics.
2000 	 */
2001 	up(&bp->stats_lock);
2002 out_no_lock:
2003 	return rc;
2004 }
2005