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 extern const u32 dmae_reg_go_c[];
27 
28 /* Statistics */
29 
30 /*
31  * General service functions
32  */
33 
34 static inline long bnx2x_hilo(u32 *hiref)
35 {
36 	u32 lo = *(hiref + 1);
37 #if (BITS_PER_LONG == 64)
38 	u32 hi = *hiref;
39 
40 	return HILO_U64(hi, lo);
41 #else
42 	return lo;
43 #endif
44 }
45 
46 static inline u16 bnx2x_get_port_stats_dma_len(struct bnx2x *bp)
47 {
48 	u16 res = 0;
49 
50 	/* 'newest' convention - shmem2 cotains the size of the port stats */
51 	if (SHMEM2_HAS(bp, sizeof_port_stats)) {
52 		u32 size = SHMEM2_RD(bp, sizeof_port_stats);
53 		if (size)
54 			res = size;
55 
56 		/* prevent newer BC from causing buffer overflow */
57 		if (res > sizeof(struct host_port_stats))
58 			res = sizeof(struct host_port_stats);
59 	}
60 
61 	/* Older convention - all BCs support the port stats' fields up until
62 	 * the 'not_used' field
63 	 */
64 	if (!res) {
65 		res = offsetof(struct host_port_stats, not_used) + 4;
66 
67 		/* if PFC stats are supported by the MFW, DMA them as well */
68 		if (bp->flags & BC_SUPPORTS_PFC_STATS) {
69 			res += offsetof(struct host_port_stats,
70 					pfc_frames_rx_lo) -
71 			       offsetof(struct host_port_stats,
72 					pfc_frames_tx_hi) + 4 ;
73 		}
74 	}
75 
76 	res >>= 2;
77 
78 	WARN_ON(res > 2 * DMAE_LEN32_RD_MAX);
79 	return res;
80 }
81 
82 /*
83  * Init service functions
84  */
85 
86 static void bnx2x_dp_stats(struct bnx2x *bp)
87 {
88 	int i;
89 
90 	DP(BNX2X_MSG_STATS, "dumping stats:\n"
91 	   "fw_stats_req\n"
92 	   "    hdr\n"
93 	   "        cmd_num %d\n"
94 	   "        reserved0 %d\n"
95 	   "        drv_stats_counter %d\n"
96 	   "        reserved1 %d\n"
97 	   "        stats_counters_addrs %x %x\n",
98 	   bp->fw_stats_req->hdr.cmd_num,
99 	   bp->fw_stats_req->hdr.reserved0,
100 	   bp->fw_stats_req->hdr.drv_stats_counter,
101 	   bp->fw_stats_req->hdr.reserved1,
102 	   bp->fw_stats_req->hdr.stats_counters_addrs.hi,
103 	   bp->fw_stats_req->hdr.stats_counters_addrs.lo);
104 
105 	for (i = 0; i < bp->fw_stats_req->hdr.cmd_num; i++) {
106 		DP(BNX2X_MSG_STATS,
107 		   "query[%d]\n"
108 		   "              kind %d\n"
109 		   "              index %d\n"
110 		   "              funcID %d\n"
111 		   "              reserved %d\n"
112 		   "              address %x %x\n",
113 		   i, bp->fw_stats_req->query[i].kind,
114 		   bp->fw_stats_req->query[i].index,
115 		   bp->fw_stats_req->query[i].funcID,
116 		   bp->fw_stats_req->query[i].reserved,
117 		   bp->fw_stats_req->query[i].address.hi,
118 		   bp->fw_stats_req->query[i].address.lo);
119 	}
120 }
121 
122 /* Post the next statistics ramrod. Protect it with the spin in
123  * order to ensure the strict order between statistics ramrods
124  * (each ramrod has a sequence number passed in a
125  * bp->fw_stats_req->hdr.drv_stats_counter and ramrods must be
126  * sent in order).
127  */
128 static void bnx2x_storm_stats_post(struct bnx2x *bp)
129 {
130 	int rc;
131 
132 	if (bp->stats_pending)
133 		return;
134 
135 	bp->fw_stats_req->hdr.drv_stats_counter =
136 		cpu_to_le16(bp->stats_counter++);
137 
138 	DP(BNX2X_MSG_STATS, "Sending statistics ramrod %d\n",
139 	   le16_to_cpu(bp->fw_stats_req->hdr.drv_stats_counter));
140 
141 	/* adjust the ramrod to include VF queues statistics */
142 	bnx2x_iov_adjust_stats_req(bp);
143 	bnx2x_dp_stats(bp);
144 
145 	/* send FW stats ramrod */
146 	rc = bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_STAT_QUERY, 0,
147 			   U64_HI(bp->fw_stats_req_mapping),
148 			   U64_LO(bp->fw_stats_req_mapping),
149 			   NONE_CONNECTION_TYPE);
150 	if (rc == 0)
151 		bp->stats_pending = 1;
152 }
153 
154 static void bnx2x_hw_stats_post(struct bnx2x *bp)
155 {
156 	struct dmae_command *dmae = &bp->stats_dmae;
157 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
158 
159 	*stats_comp = DMAE_COMP_VAL;
160 	if (CHIP_REV_IS_SLOW(bp))
161 		return;
162 
163 	/* Update MCP's statistics if possible */
164 	if (bp->func_stx)
165 		memcpy(bnx2x_sp(bp, func_stats), &bp->func_stats,
166 		       sizeof(bp->func_stats));
167 
168 	/* loader */
169 	if (bp->executer_idx) {
170 		int loader_idx = PMF_DMAE_C(bp);
171 		u32 opcode =  bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
172 						 true, DMAE_COMP_GRC);
173 		opcode = bnx2x_dmae_opcode_clr_src_reset(opcode);
174 
175 		memset(dmae, 0, sizeof(struct dmae_command));
176 		dmae->opcode = opcode;
177 		dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, dmae[0]));
178 		dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, dmae[0]));
179 		dmae->dst_addr_lo = (DMAE_REG_CMD_MEM +
180 				     sizeof(struct dmae_command) *
181 				     (loader_idx + 1)) >> 2;
182 		dmae->dst_addr_hi = 0;
183 		dmae->len = sizeof(struct dmae_command) >> 2;
184 		if (CHIP_IS_E1(bp))
185 			dmae->len--;
186 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx + 1] >> 2;
187 		dmae->comp_addr_hi = 0;
188 		dmae->comp_val = 1;
189 
190 		*stats_comp = 0;
191 		bnx2x_post_dmae(bp, dmae, loader_idx);
192 
193 	} else if (bp->func_stx) {
194 		*stats_comp = 0;
195 		bnx2x_issue_dmae_with_comp(bp, dmae, stats_comp);
196 	}
197 }
198 
199 static void bnx2x_stats_comp(struct bnx2x *bp)
200 {
201 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
202 	int cnt = 10;
203 
204 	might_sleep();
205 	while (*stats_comp != DMAE_COMP_VAL) {
206 		if (!cnt) {
207 			BNX2X_ERR("timeout waiting for stats finished\n");
208 			break;
209 		}
210 		cnt--;
211 		usleep_range(1000, 2000);
212 	}
213 }
214 
215 /*
216  * Statistics service functions
217  */
218 
219 /* should be called under stats_sema */
220 static void bnx2x_stats_pmf_update(struct bnx2x *bp)
221 {
222 	struct dmae_command *dmae;
223 	u32 opcode;
224 	int loader_idx = PMF_DMAE_C(bp);
225 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
226 
227 	/* sanity */
228 	if (!bp->port.pmf || !bp->port.port_stx) {
229 		BNX2X_ERR("BUG!\n");
230 		return;
231 	}
232 
233 	bp->executer_idx = 0;
234 
235 	opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_GRC, DMAE_DST_PCI, false, 0);
236 
237 	dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
238 	dmae->opcode = bnx2x_dmae_opcode_add_comp(opcode, DMAE_COMP_GRC);
239 	dmae->src_addr_lo = bp->port.port_stx >> 2;
240 	dmae->src_addr_hi = 0;
241 	dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
242 	dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
243 	dmae->len = DMAE_LEN32_RD_MAX;
244 	dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
245 	dmae->comp_addr_hi = 0;
246 	dmae->comp_val = 1;
247 
248 	dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
249 	dmae->opcode = bnx2x_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
250 	dmae->src_addr_lo = (bp->port.port_stx >> 2) + DMAE_LEN32_RD_MAX;
251 	dmae->src_addr_hi = 0;
252 	dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats) +
253 				   DMAE_LEN32_RD_MAX * 4);
254 	dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats) +
255 				   DMAE_LEN32_RD_MAX * 4);
256 	dmae->len = bnx2x_get_port_stats_dma_len(bp) - DMAE_LEN32_RD_MAX;
257 
258 	dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
259 	dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
260 	dmae->comp_val = DMAE_COMP_VAL;
261 
262 	*stats_comp = 0;
263 	bnx2x_hw_stats_post(bp);
264 	bnx2x_stats_comp(bp);
265 }
266 
267 static void bnx2x_port_stats_init(struct bnx2x *bp)
268 {
269 	struct dmae_command *dmae;
270 	int port = BP_PORT(bp);
271 	u32 opcode;
272 	int loader_idx = PMF_DMAE_C(bp);
273 	u32 mac_addr;
274 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
275 
276 	/* sanity */
277 	if (!bp->link_vars.link_up || !bp->port.pmf) {
278 		BNX2X_ERR("BUG!\n");
279 		return;
280 	}
281 
282 	bp->executer_idx = 0;
283 
284 	/* MCP */
285 	opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
286 				    true, DMAE_COMP_GRC);
287 
288 	if (bp->port.port_stx) {
289 
290 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
291 		dmae->opcode = opcode;
292 		dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
293 		dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
294 		dmae->dst_addr_lo = bp->port.port_stx >> 2;
295 		dmae->dst_addr_hi = 0;
296 		dmae->len = bnx2x_get_port_stats_dma_len(bp);
297 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
298 		dmae->comp_addr_hi = 0;
299 		dmae->comp_val = 1;
300 	}
301 
302 	if (bp->func_stx) {
303 
304 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
305 		dmae->opcode = opcode;
306 		dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, func_stats));
307 		dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, func_stats));
308 		dmae->dst_addr_lo = bp->func_stx >> 2;
309 		dmae->dst_addr_hi = 0;
310 		dmae->len = sizeof(struct host_func_stats) >> 2;
311 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
312 		dmae->comp_addr_hi = 0;
313 		dmae->comp_val = 1;
314 	}
315 
316 	/* MAC */
317 	opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_GRC, DMAE_DST_PCI,
318 				   true, DMAE_COMP_GRC);
319 
320 	/* EMAC is special */
321 	if (bp->link_vars.mac_type == MAC_TYPE_EMAC) {
322 		mac_addr = (port ? GRCBASE_EMAC1 : GRCBASE_EMAC0);
323 
324 		/* EMAC_REG_EMAC_RX_STAT_AC (EMAC_REG_EMAC_RX_STAT_AC_COUNT)*/
325 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
326 		dmae->opcode = opcode;
327 		dmae->src_addr_lo = (mac_addr +
328 				     EMAC_REG_EMAC_RX_STAT_AC) >> 2;
329 		dmae->src_addr_hi = 0;
330 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats));
331 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats));
332 		dmae->len = EMAC_REG_EMAC_RX_STAT_AC_COUNT;
333 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
334 		dmae->comp_addr_hi = 0;
335 		dmae->comp_val = 1;
336 
337 		/* EMAC_REG_EMAC_RX_STAT_AC_28 */
338 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
339 		dmae->opcode = opcode;
340 		dmae->src_addr_lo = (mac_addr +
341 				     EMAC_REG_EMAC_RX_STAT_AC_28) >> 2;
342 		dmae->src_addr_hi = 0;
343 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats) +
344 		     offsetof(struct emac_stats, rx_stat_falsecarriererrors));
345 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats) +
346 		     offsetof(struct emac_stats, rx_stat_falsecarriererrors));
347 		dmae->len = 1;
348 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
349 		dmae->comp_addr_hi = 0;
350 		dmae->comp_val = 1;
351 
352 		/* EMAC_REG_EMAC_TX_STAT_AC (EMAC_REG_EMAC_TX_STAT_AC_COUNT)*/
353 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
354 		dmae->opcode = opcode;
355 		dmae->src_addr_lo = (mac_addr +
356 				     EMAC_REG_EMAC_TX_STAT_AC) >> 2;
357 		dmae->src_addr_hi = 0;
358 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats) +
359 			offsetof(struct emac_stats, tx_stat_ifhcoutoctets));
360 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats) +
361 			offsetof(struct emac_stats, tx_stat_ifhcoutoctets));
362 		dmae->len = EMAC_REG_EMAC_TX_STAT_AC_COUNT;
363 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
364 		dmae->comp_addr_hi = 0;
365 		dmae->comp_val = 1;
366 	} else {
367 		u32 tx_src_addr_lo, rx_src_addr_lo;
368 		u16 rx_len, tx_len;
369 
370 		/* configure the params according to MAC type */
371 		switch (bp->link_vars.mac_type) {
372 		case MAC_TYPE_BMAC:
373 			mac_addr = (port ? NIG_REG_INGRESS_BMAC1_MEM :
374 					   NIG_REG_INGRESS_BMAC0_MEM);
375 
376 			/* BIGMAC_REGISTER_TX_STAT_GTPKT ..
377 			   BIGMAC_REGISTER_TX_STAT_GTBYT */
378 			if (CHIP_IS_E1x(bp)) {
379 				tx_src_addr_lo = (mac_addr +
380 					BIGMAC_REGISTER_TX_STAT_GTPKT) >> 2;
381 				tx_len = (8 + BIGMAC_REGISTER_TX_STAT_GTBYT -
382 					  BIGMAC_REGISTER_TX_STAT_GTPKT) >> 2;
383 				rx_src_addr_lo = (mac_addr +
384 					BIGMAC_REGISTER_RX_STAT_GR64) >> 2;
385 				rx_len = (8 + BIGMAC_REGISTER_RX_STAT_GRIPJ -
386 					  BIGMAC_REGISTER_RX_STAT_GR64) >> 2;
387 			} else {
388 				tx_src_addr_lo = (mac_addr +
389 					BIGMAC2_REGISTER_TX_STAT_GTPOK) >> 2;
390 				tx_len = (8 + BIGMAC2_REGISTER_TX_STAT_GTBYT -
391 					  BIGMAC2_REGISTER_TX_STAT_GTPOK) >> 2;
392 				rx_src_addr_lo = (mac_addr +
393 					BIGMAC2_REGISTER_RX_STAT_GR64) >> 2;
394 				rx_len = (8 + BIGMAC2_REGISTER_RX_STAT_GRIPJ -
395 					  BIGMAC2_REGISTER_RX_STAT_GR64) >> 2;
396 			}
397 			break;
398 
399 		case MAC_TYPE_UMAC: /* handled by MSTAT */
400 		case MAC_TYPE_XMAC: /* handled by MSTAT */
401 		default:
402 			mac_addr = port ? GRCBASE_MSTAT1 : GRCBASE_MSTAT0;
403 			tx_src_addr_lo = (mac_addr +
404 					  MSTAT_REG_TX_STAT_GTXPOK_LO) >> 2;
405 			rx_src_addr_lo = (mac_addr +
406 					  MSTAT_REG_RX_STAT_GR64_LO) >> 2;
407 			tx_len = sizeof(bp->slowpath->
408 					mac_stats.mstat_stats.stats_tx) >> 2;
409 			rx_len = sizeof(bp->slowpath->
410 					mac_stats.mstat_stats.stats_rx) >> 2;
411 			break;
412 		}
413 
414 		/* TX stats */
415 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
416 		dmae->opcode = opcode;
417 		dmae->src_addr_lo = tx_src_addr_lo;
418 		dmae->src_addr_hi = 0;
419 		dmae->len = tx_len;
420 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats));
421 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats));
422 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
423 		dmae->comp_addr_hi = 0;
424 		dmae->comp_val = 1;
425 
426 		/* RX stats */
427 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
428 		dmae->opcode = opcode;
429 		dmae->src_addr_hi = 0;
430 		dmae->src_addr_lo = rx_src_addr_lo;
431 		dmae->dst_addr_lo =
432 			U64_LO(bnx2x_sp_mapping(bp, mac_stats) + (tx_len << 2));
433 		dmae->dst_addr_hi =
434 			U64_HI(bnx2x_sp_mapping(bp, mac_stats) + (tx_len << 2));
435 		dmae->len = rx_len;
436 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
437 		dmae->comp_addr_hi = 0;
438 		dmae->comp_val = 1;
439 	}
440 
441 	/* NIG */
442 	if (!CHIP_IS_E3(bp)) {
443 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
444 		dmae->opcode = opcode;
445 		dmae->src_addr_lo = (port ? NIG_REG_STAT1_EGRESS_MAC_PKT0 :
446 					    NIG_REG_STAT0_EGRESS_MAC_PKT0) >> 2;
447 		dmae->src_addr_hi = 0;
448 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, nig_stats) +
449 				offsetof(struct nig_stats, egress_mac_pkt0_lo));
450 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, nig_stats) +
451 				offsetof(struct nig_stats, egress_mac_pkt0_lo));
452 		dmae->len = (2*sizeof(u32)) >> 2;
453 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
454 		dmae->comp_addr_hi = 0;
455 		dmae->comp_val = 1;
456 
457 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
458 		dmae->opcode = opcode;
459 		dmae->src_addr_lo = (port ? NIG_REG_STAT1_EGRESS_MAC_PKT1 :
460 					    NIG_REG_STAT0_EGRESS_MAC_PKT1) >> 2;
461 		dmae->src_addr_hi = 0;
462 		dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, nig_stats) +
463 				offsetof(struct nig_stats, egress_mac_pkt1_lo));
464 		dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, nig_stats) +
465 				offsetof(struct nig_stats, egress_mac_pkt1_lo));
466 		dmae->len = (2*sizeof(u32)) >> 2;
467 		dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
468 		dmae->comp_addr_hi = 0;
469 		dmae->comp_val = 1;
470 	}
471 
472 	dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
473 	dmae->opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_GRC, DMAE_DST_PCI,
474 						 true, DMAE_COMP_PCI);
475 	dmae->src_addr_lo = (port ? NIG_REG_STAT1_BRB_DISCARD :
476 				    NIG_REG_STAT0_BRB_DISCARD) >> 2;
477 	dmae->src_addr_hi = 0;
478 	dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, nig_stats));
479 	dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, nig_stats));
480 	dmae->len = (sizeof(struct nig_stats) - 4*sizeof(u32)) >> 2;
481 
482 	dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
483 	dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
484 	dmae->comp_val = DMAE_COMP_VAL;
485 
486 	*stats_comp = 0;
487 }
488 
489 static void bnx2x_func_stats_init(struct bnx2x *bp)
490 {
491 	struct dmae_command *dmae = &bp->stats_dmae;
492 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
493 
494 	/* sanity */
495 	if (!bp->func_stx) {
496 		BNX2X_ERR("BUG!\n");
497 		return;
498 	}
499 
500 	bp->executer_idx = 0;
501 	memset(dmae, 0, sizeof(struct dmae_command));
502 
503 	dmae->opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
504 					 true, DMAE_COMP_PCI);
505 	dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, func_stats));
506 	dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, func_stats));
507 	dmae->dst_addr_lo = bp->func_stx >> 2;
508 	dmae->dst_addr_hi = 0;
509 	dmae->len = sizeof(struct host_func_stats) >> 2;
510 	dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
511 	dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
512 	dmae->comp_val = DMAE_COMP_VAL;
513 
514 	*stats_comp = 0;
515 }
516 
517 /* should be called under stats_sema */
518 static void bnx2x_stats_start(struct bnx2x *bp)
519 {
520 	if (IS_PF(bp)) {
521 		if (bp->port.pmf)
522 			bnx2x_port_stats_init(bp);
523 
524 		else if (bp->func_stx)
525 			bnx2x_func_stats_init(bp);
526 
527 		bnx2x_hw_stats_post(bp);
528 		bnx2x_storm_stats_post(bp);
529 	}
530 }
531 
532 static void bnx2x_stats_pmf_start(struct bnx2x *bp)
533 {
534 	bnx2x_stats_comp(bp);
535 	bnx2x_stats_pmf_update(bp);
536 	bnx2x_stats_start(bp);
537 }
538 
539 static void bnx2x_stats_restart(struct bnx2x *bp)
540 {
541 	/* vfs travel through here as part of the statistics FSM, but no action
542 	 * is required
543 	 */
544 	if (IS_VF(bp))
545 		return;
546 
547 	bnx2x_stats_comp(bp);
548 	bnx2x_stats_start(bp);
549 }
550 
551 static void bnx2x_bmac_stats_update(struct bnx2x *bp)
552 {
553 	struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
554 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
555 	struct {
556 		u32 lo;
557 		u32 hi;
558 	} diff;
559 
560 	if (CHIP_IS_E1x(bp)) {
561 		struct bmac1_stats *new = bnx2x_sp(bp, mac_stats.bmac1_stats);
562 
563 		/* the macros below will use "bmac1_stats" type */
564 		UPDATE_STAT64(rx_stat_grerb, rx_stat_ifhcinbadoctets);
565 		UPDATE_STAT64(rx_stat_grfcs, rx_stat_dot3statsfcserrors);
566 		UPDATE_STAT64(rx_stat_grund, rx_stat_etherstatsundersizepkts);
567 		UPDATE_STAT64(rx_stat_grovr, rx_stat_dot3statsframestoolong);
568 		UPDATE_STAT64(rx_stat_grfrg, rx_stat_etherstatsfragments);
569 		UPDATE_STAT64(rx_stat_grjbr, rx_stat_etherstatsjabbers);
570 		UPDATE_STAT64(rx_stat_grxcf, rx_stat_maccontrolframesreceived);
571 		UPDATE_STAT64(rx_stat_grxpf, rx_stat_xoffstateentered);
572 		UPDATE_STAT64(rx_stat_grxpf, rx_stat_mac_xpf);
573 
574 		UPDATE_STAT64(tx_stat_gtxpf, tx_stat_outxoffsent);
575 		UPDATE_STAT64(tx_stat_gtxpf, tx_stat_flowcontroldone);
576 		UPDATE_STAT64(tx_stat_gt64, tx_stat_etherstatspkts64octets);
577 		UPDATE_STAT64(tx_stat_gt127,
578 				tx_stat_etherstatspkts65octetsto127octets);
579 		UPDATE_STAT64(tx_stat_gt255,
580 				tx_stat_etherstatspkts128octetsto255octets);
581 		UPDATE_STAT64(tx_stat_gt511,
582 				tx_stat_etherstatspkts256octetsto511octets);
583 		UPDATE_STAT64(tx_stat_gt1023,
584 				tx_stat_etherstatspkts512octetsto1023octets);
585 		UPDATE_STAT64(tx_stat_gt1518,
586 				tx_stat_etherstatspkts1024octetsto1522octets);
587 		UPDATE_STAT64(tx_stat_gt2047, tx_stat_mac_2047);
588 		UPDATE_STAT64(tx_stat_gt4095, tx_stat_mac_4095);
589 		UPDATE_STAT64(tx_stat_gt9216, tx_stat_mac_9216);
590 		UPDATE_STAT64(tx_stat_gt16383, tx_stat_mac_16383);
591 		UPDATE_STAT64(tx_stat_gterr,
592 				tx_stat_dot3statsinternalmactransmiterrors);
593 		UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
594 
595 	} else {
596 		struct bmac2_stats *new = bnx2x_sp(bp, mac_stats.bmac2_stats);
597 
598 		/* the macros below will use "bmac2_stats" type */
599 		UPDATE_STAT64(rx_stat_grerb, rx_stat_ifhcinbadoctets);
600 		UPDATE_STAT64(rx_stat_grfcs, rx_stat_dot3statsfcserrors);
601 		UPDATE_STAT64(rx_stat_grund, rx_stat_etherstatsundersizepkts);
602 		UPDATE_STAT64(rx_stat_grovr, rx_stat_dot3statsframestoolong);
603 		UPDATE_STAT64(rx_stat_grfrg, rx_stat_etherstatsfragments);
604 		UPDATE_STAT64(rx_stat_grjbr, rx_stat_etherstatsjabbers);
605 		UPDATE_STAT64(rx_stat_grxcf, rx_stat_maccontrolframesreceived);
606 		UPDATE_STAT64(rx_stat_grxpf, rx_stat_xoffstateentered);
607 		UPDATE_STAT64(rx_stat_grxpf, rx_stat_mac_xpf);
608 		UPDATE_STAT64(tx_stat_gtxpf, tx_stat_outxoffsent);
609 		UPDATE_STAT64(tx_stat_gtxpf, tx_stat_flowcontroldone);
610 		UPDATE_STAT64(tx_stat_gt64, tx_stat_etherstatspkts64octets);
611 		UPDATE_STAT64(tx_stat_gt127,
612 				tx_stat_etherstatspkts65octetsto127octets);
613 		UPDATE_STAT64(tx_stat_gt255,
614 				tx_stat_etherstatspkts128octetsto255octets);
615 		UPDATE_STAT64(tx_stat_gt511,
616 				tx_stat_etherstatspkts256octetsto511octets);
617 		UPDATE_STAT64(tx_stat_gt1023,
618 				tx_stat_etherstatspkts512octetsto1023octets);
619 		UPDATE_STAT64(tx_stat_gt1518,
620 				tx_stat_etherstatspkts1024octetsto1522octets);
621 		UPDATE_STAT64(tx_stat_gt2047, tx_stat_mac_2047);
622 		UPDATE_STAT64(tx_stat_gt4095, tx_stat_mac_4095);
623 		UPDATE_STAT64(tx_stat_gt9216, tx_stat_mac_9216);
624 		UPDATE_STAT64(tx_stat_gt16383, tx_stat_mac_16383);
625 		UPDATE_STAT64(tx_stat_gterr,
626 				tx_stat_dot3statsinternalmactransmiterrors);
627 		UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
628 
629 		/* collect PFC stats */
630 		pstats->pfc_frames_tx_hi = new->tx_stat_gtpp_hi;
631 		pstats->pfc_frames_tx_lo = new->tx_stat_gtpp_lo;
632 
633 		pstats->pfc_frames_rx_hi = new->rx_stat_grpp_hi;
634 		pstats->pfc_frames_rx_lo = new->rx_stat_grpp_lo;
635 	}
636 
637 	estats->pause_frames_received_hi =
638 				pstats->mac_stx[1].rx_stat_mac_xpf_hi;
639 	estats->pause_frames_received_lo =
640 				pstats->mac_stx[1].rx_stat_mac_xpf_lo;
641 
642 	estats->pause_frames_sent_hi =
643 				pstats->mac_stx[1].tx_stat_outxoffsent_hi;
644 	estats->pause_frames_sent_lo =
645 				pstats->mac_stx[1].tx_stat_outxoffsent_lo;
646 
647 	estats->pfc_frames_received_hi =
648 				pstats->pfc_frames_rx_hi;
649 	estats->pfc_frames_received_lo =
650 				pstats->pfc_frames_rx_lo;
651 	estats->pfc_frames_sent_hi =
652 				pstats->pfc_frames_tx_hi;
653 	estats->pfc_frames_sent_lo =
654 				pstats->pfc_frames_tx_lo;
655 }
656 
657 static void bnx2x_mstat_stats_update(struct bnx2x *bp)
658 {
659 	struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
660 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
661 
662 	struct mstat_stats *new = bnx2x_sp(bp, mac_stats.mstat_stats);
663 
664 	ADD_STAT64(stats_rx.rx_grerb, rx_stat_ifhcinbadoctets);
665 	ADD_STAT64(stats_rx.rx_grfcs, rx_stat_dot3statsfcserrors);
666 	ADD_STAT64(stats_rx.rx_grund, rx_stat_etherstatsundersizepkts);
667 	ADD_STAT64(stats_rx.rx_grovr, rx_stat_dot3statsframestoolong);
668 	ADD_STAT64(stats_rx.rx_grfrg, rx_stat_etherstatsfragments);
669 	ADD_STAT64(stats_rx.rx_grxcf, rx_stat_maccontrolframesreceived);
670 	ADD_STAT64(stats_rx.rx_grxpf, rx_stat_xoffstateentered);
671 	ADD_STAT64(stats_rx.rx_grxpf, rx_stat_mac_xpf);
672 	ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_outxoffsent);
673 	ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_flowcontroldone);
674 
675 	/* collect pfc stats */
676 	ADD_64(pstats->pfc_frames_tx_hi, new->stats_tx.tx_gtxpp_hi,
677 		pstats->pfc_frames_tx_lo, new->stats_tx.tx_gtxpp_lo);
678 	ADD_64(pstats->pfc_frames_rx_hi, new->stats_rx.rx_grxpp_hi,
679 		pstats->pfc_frames_rx_lo, new->stats_rx.rx_grxpp_lo);
680 
681 	ADD_STAT64(stats_tx.tx_gt64, tx_stat_etherstatspkts64octets);
682 	ADD_STAT64(stats_tx.tx_gt127,
683 			tx_stat_etherstatspkts65octetsto127octets);
684 	ADD_STAT64(stats_tx.tx_gt255,
685 			tx_stat_etherstatspkts128octetsto255octets);
686 	ADD_STAT64(stats_tx.tx_gt511,
687 			tx_stat_etherstatspkts256octetsto511octets);
688 	ADD_STAT64(stats_tx.tx_gt1023,
689 			tx_stat_etherstatspkts512octetsto1023octets);
690 	ADD_STAT64(stats_tx.tx_gt1518,
691 			tx_stat_etherstatspkts1024octetsto1522octets);
692 	ADD_STAT64(stats_tx.tx_gt2047, tx_stat_mac_2047);
693 
694 	ADD_STAT64(stats_tx.tx_gt4095, tx_stat_mac_4095);
695 	ADD_STAT64(stats_tx.tx_gt9216, tx_stat_mac_9216);
696 	ADD_STAT64(stats_tx.tx_gt16383, tx_stat_mac_16383);
697 
698 	ADD_STAT64(stats_tx.tx_gterr,
699 			tx_stat_dot3statsinternalmactransmiterrors);
700 	ADD_STAT64(stats_tx.tx_gtufl, tx_stat_mac_ufl);
701 
702 	estats->etherstatspkts1024octetsto1522octets_hi =
703 	    pstats->mac_stx[1].tx_stat_etherstatspkts1024octetsto1522octets_hi;
704 	estats->etherstatspkts1024octetsto1522octets_lo =
705 	    pstats->mac_stx[1].tx_stat_etherstatspkts1024octetsto1522octets_lo;
706 
707 	estats->etherstatspktsover1522octets_hi =
708 	    pstats->mac_stx[1].tx_stat_mac_2047_hi;
709 	estats->etherstatspktsover1522octets_lo =
710 	    pstats->mac_stx[1].tx_stat_mac_2047_lo;
711 
712 	ADD_64(estats->etherstatspktsover1522octets_hi,
713 	       pstats->mac_stx[1].tx_stat_mac_4095_hi,
714 	       estats->etherstatspktsover1522octets_lo,
715 	       pstats->mac_stx[1].tx_stat_mac_4095_lo);
716 
717 	ADD_64(estats->etherstatspktsover1522octets_hi,
718 	       pstats->mac_stx[1].tx_stat_mac_9216_hi,
719 	       estats->etherstatspktsover1522octets_lo,
720 	       pstats->mac_stx[1].tx_stat_mac_9216_lo);
721 
722 	ADD_64(estats->etherstatspktsover1522octets_hi,
723 	       pstats->mac_stx[1].tx_stat_mac_16383_hi,
724 	       estats->etherstatspktsover1522octets_lo,
725 	       pstats->mac_stx[1].tx_stat_mac_16383_lo);
726 
727 	estats->pause_frames_received_hi =
728 				pstats->mac_stx[1].rx_stat_mac_xpf_hi;
729 	estats->pause_frames_received_lo =
730 				pstats->mac_stx[1].rx_stat_mac_xpf_lo;
731 
732 	estats->pause_frames_sent_hi =
733 				pstats->mac_stx[1].tx_stat_outxoffsent_hi;
734 	estats->pause_frames_sent_lo =
735 				pstats->mac_stx[1].tx_stat_outxoffsent_lo;
736 
737 	estats->pfc_frames_received_hi =
738 				pstats->pfc_frames_rx_hi;
739 	estats->pfc_frames_received_lo =
740 				pstats->pfc_frames_rx_lo;
741 	estats->pfc_frames_sent_hi =
742 				pstats->pfc_frames_tx_hi;
743 	estats->pfc_frames_sent_lo =
744 				pstats->pfc_frames_tx_lo;
745 }
746 
747 static void bnx2x_emac_stats_update(struct bnx2x *bp)
748 {
749 	struct emac_stats *new = bnx2x_sp(bp, mac_stats.emac_stats);
750 	struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
751 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
752 
753 	UPDATE_EXTEND_STAT(rx_stat_ifhcinbadoctets);
754 	UPDATE_EXTEND_STAT(tx_stat_ifhcoutbadoctets);
755 	UPDATE_EXTEND_STAT(rx_stat_dot3statsfcserrors);
756 	UPDATE_EXTEND_STAT(rx_stat_dot3statsalignmenterrors);
757 	UPDATE_EXTEND_STAT(rx_stat_dot3statscarriersenseerrors);
758 	UPDATE_EXTEND_STAT(rx_stat_falsecarriererrors);
759 	UPDATE_EXTEND_STAT(rx_stat_etherstatsundersizepkts);
760 	UPDATE_EXTEND_STAT(rx_stat_dot3statsframestoolong);
761 	UPDATE_EXTEND_STAT(rx_stat_etherstatsfragments);
762 	UPDATE_EXTEND_STAT(rx_stat_etherstatsjabbers);
763 	UPDATE_EXTEND_STAT(rx_stat_maccontrolframesreceived);
764 	UPDATE_EXTEND_STAT(rx_stat_xoffstateentered);
765 	UPDATE_EXTEND_STAT(rx_stat_xonpauseframesreceived);
766 	UPDATE_EXTEND_STAT(rx_stat_xoffpauseframesreceived);
767 	UPDATE_EXTEND_STAT(tx_stat_outxonsent);
768 	UPDATE_EXTEND_STAT(tx_stat_outxoffsent);
769 	UPDATE_EXTEND_STAT(tx_stat_flowcontroldone);
770 	UPDATE_EXTEND_STAT(tx_stat_etherstatscollisions);
771 	UPDATE_EXTEND_STAT(tx_stat_dot3statssinglecollisionframes);
772 	UPDATE_EXTEND_STAT(tx_stat_dot3statsmultiplecollisionframes);
773 	UPDATE_EXTEND_STAT(tx_stat_dot3statsdeferredtransmissions);
774 	UPDATE_EXTEND_STAT(tx_stat_dot3statsexcessivecollisions);
775 	UPDATE_EXTEND_STAT(tx_stat_dot3statslatecollisions);
776 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts64octets);
777 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts65octetsto127octets);
778 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts128octetsto255octets);
779 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts256octetsto511octets);
780 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts512octetsto1023octets);
781 	UPDATE_EXTEND_STAT(tx_stat_etherstatspkts1024octetsto1522octets);
782 	UPDATE_EXTEND_STAT(tx_stat_etherstatspktsover1522octets);
783 	UPDATE_EXTEND_STAT(tx_stat_dot3statsinternalmactransmiterrors);
784 
785 	estats->pause_frames_received_hi =
786 			pstats->mac_stx[1].rx_stat_xonpauseframesreceived_hi;
787 	estats->pause_frames_received_lo =
788 			pstats->mac_stx[1].rx_stat_xonpauseframesreceived_lo;
789 	ADD_64(estats->pause_frames_received_hi,
790 	       pstats->mac_stx[1].rx_stat_xoffpauseframesreceived_hi,
791 	       estats->pause_frames_received_lo,
792 	       pstats->mac_stx[1].rx_stat_xoffpauseframesreceived_lo);
793 
794 	estats->pause_frames_sent_hi =
795 			pstats->mac_stx[1].tx_stat_outxonsent_hi;
796 	estats->pause_frames_sent_lo =
797 			pstats->mac_stx[1].tx_stat_outxonsent_lo;
798 	ADD_64(estats->pause_frames_sent_hi,
799 	       pstats->mac_stx[1].tx_stat_outxoffsent_hi,
800 	       estats->pause_frames_sent_lo,
801 	       pstats->mac_stx[1].tx_stat_outxoffsent_lo);
802 }
803 
804 static int bnx2x_hw_stats_update(struct bnx2x *bp)
805 {
806 	struct nig_stats *new = bnx2x_sp(bp, nig_stats);
807 	struct nig_stats *old = &(bp->port.old_nig_stats);
808 	struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
809 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
810 	struct {
811 		u32 lo;
812 		u32 hi;
813 	} diff;
814 
815 	switch (bp->link_vars.mac_type) {
816 	case MAC_TYPE_BMAC:
817 		bnx2x_bmac_stats_update(bp);
818 		break;
819 
820 	case MAC_TYPE_EMAC:
821 		bnx2x_emac_stats_update(bp);
822 		break;
823 
824 	case MAC_TYPE_UMAC:
825 	case MAC_TYPE_XMAC:
826 		bnx2x_mstat_stats_update(bp);
827 		break;
828 
829 	case MAC_TYPE_NONE: /* unreached */
830 		DP(BNX2X_MSG_STATS,
831 		   "stats updated by DMAE but no MAC active\n");
832 		return -1;
833 
834 	default: /* unreached */
835 		BNX2X_ERR("Unknown MAC type\n");
836 	}
837 
838 	ADD_EXTEND_64(pstats->brb_drop_hi, pstats->brb_drop_lo,
839 		      new->brb_discard - old->brb_discard);
840 	ADD_EXTEND_64(estats->brb_truncate_hi, estats->brb_truncate_lo,
841 		      new->brb_truncate - old->brb_truncate);
842 
843 	if (!CHIP_IS_E3(bp)) {
844 		UPDATE_STAT64_NIG(egress_mac_pkt0,
845 					etherstatspkts1024octetsto1522octets);
846 		UPDATE_STAT64_NIG(egress_mac_pkt1,
847 					etherstatspktsover1522octets);
848 	}
849 
850 	memcpy(old, new, sizeof(struct nig_stats));
851 
852 	memcpy(&(estats->rx_stat_ifhcinbadoctets_hi), &(pstats->mac_stx[1]),
853 	       sizeof(struct mac_stx));
854 	estats->brb_drop_hi = pstats->brb_drop_hi;
855 	estats->brb_drop_lo = pstats->brb_drop_lo;
856 
857 	pstats->host_port_stats_counter++;
858 
859 	if (CHIP_IS_E3(bp)) {
860 		u32 lpi_reg = BP_PORT(bp) ? MISC_REG_CPMU_LP_SM_ENT_CNT_P1
861 					  : MISC_REG_CPMU_LP_SM_ENT_CNT_P0;
862 		estats->eee_tx_lpi += REG_RD(bp, lpi_reg);
863 	}
864 
865 	if (!BP_NOMCP(bp)) {
866 		u32 nig_timer_max =
867 			SHMEM_RD(bp, port_mb[BP_PORT(bp)].stat_nig_timer);
868 		if (nig_timer_max != estats->nig_timer_max) {
869 			estats->nig_timer_max = nig_timer_max;
870 			BNX2X_ERR("NIG timer max (%u)\n",
871 				  estats->nig_timer_max);
872 		}
873 	}
874 
875 	return 0;
876 }
877 
878 static int bnx2x_storm_stats_validate_counters(struct bnx2x *bp)
879 {
880 	struct stats_counter *counters = &bp->fw_stats_data->storm_counters;
881 	u16 cur_stats_counter;
882 	/* Make sure we use the value of the counter
883 	 * used for sending the last stats ramrod.
884 	 */
885 	cur_stats_counter = bp->stats_counter - 1;
886 
887 	/* are storm stats valid? */
888 	if (le16_to_cpu(counters->xstats_counter) != cur_stats_counter) {
889 		DP(BNX2X_MSG_STATS,
890 		   "stats not updated by xstorm  xstorm counter (0x%x) != stats_counter (0x%x)\n",
891 		   le16_to_cpu(counters->xstats_counter), bp->stats_counter);
892 		return -EAGAIN;
893 	}
894 
895 	if (le16_to_cpu(counters->ustats_counter) != cur_stats_counter) {
896 		DP(BNX2X_MSG_STATS,
897 		   "stats not updated by ustorm  ustorm counter (0x%x) != stats_counter (0x%x)\n",
898 		   le16_to_cpu(counters->ustats_counter), bp->stats_counter);
899 		return -EAGAIN;
900 	}
901 
902 	if (le16_to_cpu(counters->cstats_counter) != cur_stats_counter) {
903 		DP(BNX2X_MSG_STATS,
904 		   "stats not updated by cstorm  cstorm counter (0x%x) != stats_counter (0x%x)\n",
905 		   le16_to_cpu(counters->cstats_counter), bp->stats_counter);
906 		return -EAGAIN;
907 	}
908 
909 	if (le16_to_cpu(counters->tstats_counter) != cur_stats_counter) {
910 		DP(BNX2X_MSG_STATS,
911 		   "stats not updated by tstorm  tstorm counter (0x%x) != stats_counter (0x%x)\n",
912 		   le16_to_cpu(counters->tstats_counter), bp->stats_counter);
913 		return -EAGAIN;
914 	}
915 	return 0;
916 }
917 
918 static int bnx2x_storm_stats_update(struct bnx2x *bp)
919 {
920 	struct tstorm_per_port_stats *tport =
921 				&bp->fw_stats_data->port.tstorm_port_statistics;
922 	struct tstorm_per_pf_stats *tfunc =
923 				&bp->fw_stats_data->pf.tstorm_pf_statistics;
924 	struct host_func_stats *fstats = &bp->func_stats;
925 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
926 	struct bnx2x_eth_stats_old *estats_old = &bp->eth_stats_old;
927 	int i;
928 
929 	/* vfs stat counter is managed by pf */
930 	if (IS_PF(bp) && bnx2x_storm_stats_validate_counters(bp))
931 		return -EAGAIN;
932 
933 	estats->error_bytes_received_hi = 0;
934 	estats->error_bytes_received_lo = 0;
935 
936 	for_each_eth_queue(bp, i) {
937 		struct bnx2x_fastpath *fp = &bp->fp[i];
938 		struct tstorm_per_queue_stats *tclient =
939 			&bp->fw_stats_data->queue_stats[i].
940 			tstorm_queue_statistics;
941 		struct tstorm_per_queue_stats *old_tclient =
942 			&bnx2x_fp_stats(bp, fp)->old_tclient;
943 		struct ustorm_per_queue_stats *uclient =
944 			&bp->fw_stats_data->queue_stats[i].
945 			ustorm_queue_statistics;
946 		struct ustorm_per_queue_stats *old_uclient =
947 			&bnx2x_fp_stats(bp, fp)->old_uclient;
948 		struct xstorm_per_queue_stats *xclient =
949 			&bp->fw_stats_data->queue_stats[i].
950 			xstorm_queue_statistics;
951 		struct xstorm_per_queue_stats *old_xclient =
952 			&bnx2x_fp_stats(bp, fp)->old_xclient;
953 		struct bnx2x_eth_q_stats *qstats =
954 			&bnx2x_fp_stats(bp, fp)->eth_q_stats;
955 		struct bnx2x_eth_q_stats_old *qstats_old =
956 			&bnx2x_fp_stats(bp, fp)->eth_q_stats_old;
957 
958 		u32 diff;
959 
960 		DP(BNX2X_MSG_STATS, "queue[%d]: ucast_sent 0x%x, bcast_sent 0x%x mcast_sent 0x%x\n",
961 		   i, xclient->ucast_pkts_sent,
962 		   xclient->bcast_pkts_sent, xclient->mcast_pkts_sent);
963 
964 		DP(BNX2X_MSG_STATS, "---------------\n");
965 
966 		UPDATE_QSTAT(tclient->rcv_bcast_bytes,
967 			     total_broadcast_bytes_received);
968 		UPDATE_QSTAT(tclient->rcv_mcast_bytes,
969 			     total_multicast_bytes_received);
970 		UPDATE_QSTAT(tclient->rcv_ucast_bytes,
971 			     total_unicast_bytes_received);
972 
973 		/*
974 		 * sum to total_bytes_received all
975 		 * unicast/multicast/broadcast
976 		 */
977 		qstats->total_bytes_received_hi =
978 			qstats->total_broadcast_bytes_received_hi;
979 		qstats->total_bytes_received_lo =
980 			qstats->total_broadcast_bytes_received_lo;
981 
982 		ADD_64(qstats->total_bytes_received_hi,
983 		       qstats->total_multicast_bytes_received_hi,
984 		       qstats->total_bytes_received_lo,
985 		       qstats->total_multicast_bytes_received_lo);
986 
987 		ADD_64(qstats->total_bytes_received_hi,
988 		       qstats->total_unicast_bytes_received_hi,
989 		       qstats->total_bytes_received_lo,
990 		       qstats->total_unicast_bytes_received_lo);
991 
992 		qstats->valid_bytes_received_hi =
993 					qstats->total_bytes_received_hi;
994 		qstats->valid_bytes_received_lo =
995 					qstats->total_bytes_received_lo;
996 
997 		UPDATE_EXTEND_TSTAT(rcv_ucast_pkts,
998 					total_unicast_packets_received);
999 		UPDATE_EXTEND_TSTAT(rcv_mcast_pkts,
1000 					total_multicast_packets_received);
1001 		UPDATE_EXTEND_TSTAT(rcv_bcast_pkts,
1002 					total_broadcast_packets_received);
1003 		UPDATE_EXTEND_E_TSTAT(pkts_too_big_discard,
1004 				      etherstatsoverrsizepkts, 32);
1005 		UPDATE_EXTEND_E_TSTAT(no_buff_discard, no_buff_discard, 16);
1006 
1007 		SUB_EXTEND_USTAT(ucast_no_buff_pkts,
1008 					total_unicast_packets_received);
1009 		SUB_EXTEND_USTAT(mcast_no_buff_pkts,
1010 					total_multicast_packets_received);
1011 		SUB_EXTEND_USTAT(bcast_no_buff_pkts,
1012 					total_broadcast_packets_received);
1013 		UPDATE_EXTEND_E_USTAT(ucast_no_buff_pkts, no_buff_discard);
1014 		UPDATE_EXTEND_E_USTAT(mcast_no_buff_pkts, no_buff_discard);
1015 		UPDATE_EXTEND_E_USTAT(bcast_no_buff_pkts, no_buff_discard);
1016 
1017 		UPDATE_QSTAT(xclient->bcast_bytes_sent,
1018 			     total_broadcast_bytes_transmitted);
1019 		UPDATE_QSTAT(xclient->mcast_bytes_sent,
1020 			     total_multicast_bytes_transmitted);
1021 		UPDATE_QSTAT(xclient->ucast_bytes_sent,
1022 			     total_unicast_bytes_transmitted);
1023 
1024 		/*
1025 		 * sum to total_bytes_transmitted all
1026 		 * unicast/multicast/broadcast
1027 		 */
1028 		qstats->total_bytes_transmitted_hi =
1029 				qstats->total_unicast_bytes_transmitted_hi;
1030 		qstats->total_bytes_transmitted_lo =
1031 				qstats->total_unicast_bytes_transmitted_lo;
1032 
1033 		ADD_64(qstats->total_bytes_transmitted_hi,
1034 		       qstats->total_broadcast_bytes_transmitted_hi,
1035 		       qstats->total_bytes_transmitted_lo,
1036 		       qstats->total_broadcast_bytes_transmitted_lo);
1037 
1038 		ADD_64(qstats->total_bytes_transmitted_hi,
1039 		       qstats->total_multicast_bytes_transmitted_hi,
1040 		       qstats->total_bytes_transmitted_lo,
1041 		       qstats->total_multicast_bytes_transmitted_lo);
1042 
1043 		UPDATE_EXTEND_XSTAT(ucast_pkts_sent,
1044 					total_unicast_packets_transmitted);
1045 		UPDATE_EXTEND_XSTAT(mcast_pkts_sent,
1046 					total_multicast_packets_transmitted);
1047 		UPDATE_EXTEND_XSTAT(bcast_pkts_sent,
1048 					total_broadcast_packets_transmitted);
1049 
1050 		UPDATE_EXTEND_TSTAT(checksum_discard,
1051 				    total_packets_received_checksum_discarded);
1052 		UPDATE_EXTEND_TSTAT(ttl0_discard,
1053 				    total_packets_received_ttl0_discarded);
1054 
1055 		UPDATE_EXTEND_XSTAT(error_drop_pkts,
1056 				    total_transmitted_dropped_packets_error);
1057 
1058 		/* TPA aggregations completed */
1059 		UPDATE_EXTEND_E_USTAT(coalesced_events, total_tpa_aggregations);
1060 		/* Number of network frames aggregated by TPA */
1061 		UPDATE_EXTEND_E_USTAT(coalesced_pkts,
1062 				      total_tpa_aggregated_frames);
1063 		/* Total number of bytes in completed TPA aggregations */
1064 		UPDATE_QSTAT(uclient->coalesced_bytes, total_tpa_bytes);
1065 
1066 		UPDATE_ESTAT_QSTAT_64(total_tpa_bytes);
1067 
1068 		UPDATE_FSTAT_QSTAT(total_bytes_received);
1069 		UPDATE_FSTAT_QSTAT(total_bytes_transmitted);
1070 		UPDATE_FSTAT_QSTAT(total_unicast_packets_received);
1071 		UPDATE_FSTAT_QSTAT(total_multicast_packets_received);
1072 		UPDATE_FSTAT_QSTAT(total_broadcast_packets_received);
1073 		UPDATE_FSTAT_QSTAT(total_unicast_packets_transmitted);
1074 		UPDATE_FSTAT_QSTAT(total_multicast_packets_transmitted);
1075 		UPDATE_FSTAT_QSTAT(total_broadcast_packets_transmitted);
1076 		UPDATE_FSTAT_QSTAT(valid_bytes_received);
1077 	}
1078 
1079 	ADD_64(estats->total_bytes_received_hi,
1080 	       estats->rx_stat_ifhcinbadoctets_hi,
1081 	       estats->total_bytes_received_lo,
1082 	       estats->rx_stat_ifhcinbadoctets_lo);
1083 
1084 	ADD_64_LE(estats->total_bytes_received_hi,
1085 		  tfunc->rcv_error_bytes.hi,
1086 		  estats->total_bytes_received_lo,
1087 		  tfunc->rcv_error_bytes.lo);
1088 
1089 	ADD_64_LE(estats->error_bytes_received_hi,
1090 		  tfunc->rcv_error_bytes.hi,
1091 		  estats->error_bytes_received_lo,
1092 		  tfunc->rcv_error_bytes.lo);
1093 
1094 	UPDATE_ESTAT(etherstatsoverrsizepkts, rx_stat_dot3statsframestoolong);
1095 
1096 	ADD_64(estats->error_bytes_received_hi,
1097 	       estats->rx_stat_ifhcinbadoctets_hi,
1098 	       estats->error_bytes_received_lo,
1099 	       estats->rx_stat_ifhcinbadoctets_lo);
1100 
1101 	if (bp->port.pmf) {
1102 		struct bnx2x_fw_port_stats_old *fwstats = &bp->fw_stats_old;
1103 		UPDATE_FW_STAT(mac_filter_discard);
1104 		UPDATE_FW_STAT(mf_tag_discard);
1105 		UPDATE_FW_STAT(brb_truncate_discard);
1106 		UPDATE_FW_STAT(mac_discard);
1107 	}
1108 
1109 	fstats->host_func_stats_start = ++fstats->host_func_stats_end;
1110 
1111 	bp->stats_pending = 0;
1112 
1113 	return 0;
1114 }
1115 
1116 static void bnx2x_net_stats_update(struct bnx2x *bp)
1117 {
1118 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
1119 	struct net_device_stats *nstats = &bp->dev->stats;
1120 	unsigned long tmp;
1121 	int i;
1122 
1123 	nstats->rx_packets =
1124 		bnx2x_hilo(&estats->total_unicast_packets_received_hi) +
1125 		bnx2x_hilo(&estats->total_multicast_packets_received_hi) +
1126 		bnx2x_hilo(&estats->total_broadcast_packets_received_hi);
1127 
1128 	nstats->tx_packets =
1129 		bnx2x_hilo(&estats->total_unicast_packets_transmitted_hi) +
1130 		bnx2x_hilo(&estats->total_multicast_packets_transmitted_hi) +
1131 		bnx2x_hilo(&estats->total_broadcast_packets_transmitted_hi);
1132 
1133 	nstats->rx_bytes = bnx2x_hilo(&estats->total_bytes_received_hi);
1134 
1135 	nstats->tx_bytes = bnx2x_hilo(&estats->total_bytes_transmitted_hi);
1136 
1137 	tmp = estats->mac_discard;
1138 	for_each_rx_queue(bp, i) {
1139 		struct tstorm_per_queue_stats *old_tclient =
1140 			&bp->fp_stats[i].old_tclient;
1141 		tmp += le32_to_cpu(old_tclient->checksum_discard);
1142 	}
1143 	nstats->rx_dropped = tmp + bp->net_stats_old.rx_dropped;
1144 
1145 	nstats->tx_dropped = 0;
1146 
1147 	nstats->multicast =
1148 		bnx2x_hilo(&estats->total_multicast_packets_received_hi);
1149 
1150 	nstats->collisions =
1151 		bnx2x_hilo(&estats->tx_stat_etherstatscollisions_hi);
1152 
1153 	nstats->rx_length_errors =
1154 		bnx2x_hilo(&estats->rx_stat_etherstatsundersizepkts_hi) +
1155 		bnx2x_hilo(&estats->etherstatsoverrsizepkts_hi);
1156 	nstats->rx_over_errors = bnx2x_hilo(&estats->brb_drop_hi) +
1157 				 bnx2x_hilo(&estats->brb_truncate_hi);
1158 	nstats->rx_crc_errors =
1159 		bnx2x_hilo(&estats->rx_stat_dot3statsfcserrors_hi);
1160 	nstats->rx_frame_errors =
1161 		bnx2x_hilo(&estats->rx_stat_dot3statsalignmenterrors_hi);
1162 	nstats->rx_fifo_errors = bnx2x_hilo(&estats->no_buff_discard_hi);
1163 	nstats->rx_missed_errors = 0;
1164 
1165 	nstats->rx_errors = nstats->rx_length_errors +
1166 			    nstats->rx_over_errors +
1167 			    nstats->rx_crc_errors +
1168 			    nstats->rx_frame_errors +
1169 			    nstats->rx_fifo_errors +
1170 			    nstats->rx_missed_errors;
1171 
1172 	nstats->tx_aborted_errors =
1173 		bnx2x_hilo(&estats->tx_stat_dot3statslatecollisions_hi) +
1174 		bnx2x_hilo(&estats->tx_stat_dot3statsexcessivecollisions_hi);
1175 	nstats->tx_carrier_errors =
1176 		bnx2x_hilo(&estats->rx_stat_dot3statscarriersenseerrors_hi);
1177 	nstats->tx_fifo_errors = 0;
1178 	nstats->tx_heartbeat_errors = 0;
1179 	nstats->tx_window_errors = 0;
1180 
1181 	nstats->tx_errors = nstats->tx_aborted_errors +
1182 			    nstats->tx_carrier_errors +
1183 	    bnx2x_hilo(&estats->tx_stat_dot3statsinternalmactransmiterrors_hi);
1184 }
1185 
1186 static void bnx2x_drv_stats_update(struct bnx2x *bp)
1187 {
1188 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
1189 	int i;
1190 
1191 	for_each_queue(bp, i) {
1192 		struct bnx2x_eth_q_stats *qstats = &bp->fp_stats[i].eth_q_stats;
1193 		struct bnx2x_eth_q_stats_old *qstats_old =
1194 			&bp->fp_stats[i].eth_q_stats_old;
1195 
1196 		UPDATE_ESTAT_QSTAT(driver_xoff);
1197 		UPDATE_ESTAT_QSTAT(rx_err_discard_pkt);
1198 		UPDATE_ESTAT_QSTAT(rx_skb_alloc_failed);
1199 		UPDATE_ESTAT_QSTAT(hw_csum_err);
1200 		UPDATE_ESTAT_QSTAT(driver_filtered_tx_pkt);
1201 	}
1202 }
1203 
1204 static bool bnx2x_edebug_stats_stopped(struct bnx2x *bp)
1205 {
1206 	u32 val;
1207 
1208 	if (SHMEM2_HAS(bp, edebug_driver_if[1])) {
1209 		val = SHMEM2_RD(bp, edebug_driver_if[1]);
1210 
1211 		if (val == EDEBUG_DRIVER_IF_OP_CODE_DISABLE_STAT)
1212 			return true;
1213 	}
1214 
1215 	return false;
1216 }
1217 
1218 static void bnx2x_stats_update(struct bnx2x *bp)
1219 {
1220 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
1221 
1222 	if (bnx2x_edebug_stats_stopped(bp))
1223 		return;
1224 
1225 	if (IS_PF(bp)) {
1226 		if (*stats_comp != DMAE_COMP_VAL)
1227 			return;
1228 
1229 		if (bp->port.pmf)
1230 			bnx2x_hw_stats_update(bp);
1231 
1232 		if (bnx2x_storm_stats_update(bp)) {
1233 			if (bp->stats_pending++ == 3) {
1234 				BNX2X_ERR("storm stats were not updated for 3 times\n");
1235 				bnx2x_panic();
1236 			}
1237 			return;
1238 		}
1239 	} else {
1240 		/* vf doesn't collect HW statistics, and doesn't get completions
1241 		 * perform only update
1242 		 */
1243 		bnx2x_storm_stats_update(bp);
1244 	}
1245 
1246 	bnx2x_net_stats_update(bp);
1247 	bnx2x_drv_stats_update(bp);
1248 
1249 	/* vf is done */
1250 	if (IS_VF(bp))
1251 		return;
1252 
1253 	if (netif_msg_timer(bp)) {
1254 		struct bnx2x_eth_stats *estats = &bp->eth_stats;
1255 
1256 		netdev_dbg(bp->dev, "brb drops %u  brb truncate %u\n",
1257 		       estats->brb_drop_lo, estats->brb_truncate_lo);
1258 	}
1259 
1260 	bnx2x_hw_stats_post(bp);
1261 	bnx2x_storm_stats_post(bp);
1262 }
1263 
1264 static void bnx2x_port_stats_stop(struct bnx2x *bp)
1265 {
1266 	struct dmae_command *dmae;
1267 	u32 opcode;
1268 	int loader_idx = PMF_DMAE_C(bp);
1269 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
1270 
1271 	bp->executer_idx = 0;
1272 
1273 	opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC, false, 0);
1274 
1275 	if (bp->port.port_stx) {
1276 
1277 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
1278 		if (bp->func_stx)
1279 			dmae->opcode = bnx2x_dmae_opcode_add_comp(
1280 						opcode, DMAE_COMP_GRC);
1281 		else
1282 			dmae->opcode = bnx2x_dmae_opcode_add_comp(
1283 						opcode, DMAE_COMP_PCI);
1284 
1285 		dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
1286 		dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
1287 		dmae->dst_addr_lo = bp->port.port_stx >> 2;
1288 		dmae->dst_addr_hi = 0;
1289 		dmae->len = bnx2x_get_port_stats_dma_len(bp);
1290 		if (bp->func_stx) {
1291 			dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
1292 			dmae->comp_addr_hi = 0;
1293 			dmae->comp_val = 1;
1294 		} else {
1295 			dmae->comp_addr_lo =
1296 				U64_LO(bnx2x_sp_mapping(bp, stats_comp));
1297 			dmae->comp_addr_hi =
1298 				U64_HI(bnx2x_sp_mapping(bp, stats_comp));
1299 			dmae->comp_val = DMAE_COMP_VAL;
1300 
1301 			*stats_comp = 0;
1302 		}
1303 	}
1304 
1305 	if (bp->func_stx) {
1306 
1307 		dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
1308 		dmae->opcode =
1309 			bnx2x_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
1310 		dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, func_stats));
1311 		dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, func_stats));
1312 		dmae->dst_addr_lo = bp->func_stx >> 2;
1313 		dmae->dst_addr_hi = 0;
1314 		dmae->len = sizeof(struct host_func_stats) >> 2;
1315 		dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
1316 		dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
1317 		dmae->comp_val = DMAE_COMP_VAL;
1318 
1319 		*stats_comp = 0;
1320 	}
1321 }
1322 
1323 static void bnx2x_stats_stop(struct bnx2x *bp)
1324 {
1325 	bool update = false;
1326 
1327 	bnx2x_stats_comp(bp);
1328 
1329 	if (bp->port.pmf)
1330 		update = (bnx2x_hw_stats_update(bp) == 0);
1331 
1332 	update |= (bnx2x_storm_stats_update(bp) == 0);
1333 
1334 	if (update) {
1335 		bnx2x_net_stats_update(bp);
1336 
1337 		if (bp->port.pmf)
1338 			bnx2x_port_stats_stop(bp);
1339 
1340 		bnx2x_hw_stats_post(bp);
1341 		bnx2x_stats_comp(bp);
1342 	}
1343 }
1344 
1345 static void bnx2x_stats_do_nothing(struct bnx2x *bp)
1346 {
1347 }
1348 
1349 static const struct {
1350 	void (*action)(struct bnx2x *bp);
1351 	enum bnx2x_stats_state next_state;
1352 } bnx2x_stats_stm[STATS_STATE_MAX][STATS_EVENT_MAX] = {
1353 /* state	event	*/
1354 {
1355 /* DISABLED	PMF	*/ {bnx2x_stats_pmf_update, STATS_STATE_DISABLED},
1356 /*		LINK_UP	*/ {bnx2x_stats_start,      STATS_STATE_ENABLED},
1357 /*		UPDATE	*/ {bnx2x_stats_do_nothing, STATS_STATE_DISABLED},
1358 /*		STOP	*/ {bnx2x_stats_do_nothing, STATS_STATE_DISABLED}
1359 },
1360 {
1361 /* ENABLED	PMF	*/ {bnx2x_stats_pmf_start,  STATS_STATE_ENABLED},
1362 /*		LINK_UP	*/ {bnx2x_stats_restart,    STATS_STATE_ENABLED},
1363 /*		UPDATE	*/ {bnx2x_stats_update,     STATS_STATE_ENABLED},
1364 /*		STOP	*/ {bnx2x_stats_stop,       STATS_STATE_DISABLED}
1365 }
1366 };
1367 
1368 void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event)
1369 {
1370 	enum bnx2x_stats_state state = bp->stats_state;
1371 
1372 	if (unlikely(bp->panic))
1373 		return;
1374 
1375 	/* Statistics update run from timer context, and we don't want to stop
1376 	 * that context in case someone is in the middle of a transition.
1377 	 * For other events, wait a bit until lock is taken.
1378 	 */
1379 	if (down_trylock(&bp->stats_lock)) {
1380 		if (event == STATS_EVENT_UPDATE)
1381 			return;
1382 
1383 		DP(BNX2X_MSG_STATS,
1384 		   "Unlikely stats' lock contention [event %d]\n", event);
1385 		if (unlikely(down_timeout(&bp->stats_lock, HZ / 10))) {
1386 			BNX2X_ERR("Failed to take stats lock [event %d]\n",
1387 				  event);
1388 			return;
1389 		}
1390 	}
1391 
1392 	bnx2x_stats_stm[state][event].action(bp);
1393 	bp->stats_state = bnx2x_stats_stm[state][event].next_state;
1394 
1395 	up(&bp->stats_lock);
1396 
1397 	if ((event != STATS_EVENT_UPDATE) || netif_msg_timer(bp))
1398 		DP(BNX2X_MSG_STATS, "state %d -> event %d -> state %d\n",
1399 		   state, event, bp->stats_state);
1400 }
1401 
1402 static void bnx2x_port_stats_base_init(struct bnx2x *bp)
1403 {
1404 	struct dmae_command *dmae;
1405 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
1406 
1407 	/* sanity */
1408 	if (!bp->port.pmf || !bp->port.port_stx) {
1409 		BNX2X_ERR("BUG!\n");
1410 		return;
1411 	}
1412 
1413 	bp->executer_idx = 0;
1414 
1415 	dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
1416 	dmae->opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
1417 					 true, DMAE_COMP_PCI);
1418 	dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
1419 	dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
1420 	dmae->dst_addr_lo = bp->port.port_stx >> 2;
1421 	dmae->dst_addr_hi = 0;
1422 	dmae->len = bnx2x_get_port_stats_dma_len(bp);
1423 	dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
1424 	dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
1425 	dmae->comp_val = DMAE_COMP_VAL;
1426 
1427 	*stats_comp = 0;
1428 	bnx2x_hw_stats_post(bp);
1429 	bnx2x_stats_comp(bp);
1430 }
1431 
1432 /* This function will prepare the statistics ramrod data the way
1433  * we will only have to increment the statistics counter and
1434  * send the ramrod each time we have to.
1435  */
1436 static void bnx2x_prep_fw_stats_req(struct bnx2x *bp)
1437 {
1438 	int i;
1439 	int first_queue_query_index;
1440 	struct stats_query_header *stats_hdr = &bp->fw_stats_req->hdr;
1441 
1442 	dma_addr_t cur_data_offset;
1443 	struct stats_query_entry *cur_query_entry;
1444 
1445 	stats_hdr->cmd_num = bp->fw_stats_num;
1446 	stats_hdr->drv_stats_counter = 0;
1447 
1448 	/* storm_counters struct contains the counters of completed
1449 	 * statistics requests per storm which are incremented by FW
1450 	 * each time it completes hadning a statistics ramrod. We will
1451 	 * check these counters in the timer handler and discard a
1452 	 * (statistics) ramrod completion.
1453 	 */
1454 	cur_data_offset = bp->fw_stats_data_mapping +
1455 		offsetof(struct bnx2x_fw_stats_data, storm_counters);
1456 
1457 	stats_hdr->stats_counters_addrs.hi =
1458 		cpu_to_le32(U64_HI(cur_data_offset));
1459 	stats_hdr->stats_counters_addrs.lo =
1460 		cpu_to_le32(U64_LO(cur_data_offset));
1461 
1462 	/* prepare to the first stats ramrod (will be completed with
1463 	 * the counters equal to zero) - init counters to somethig different.
1464 	 */
1465 	memset(&bp->fw_stats_data->storm_counters, 0xff,
1466 	       sizeof(struct stats_counter));
1467 
1468 	/**** Port FW statistics data ****/
1469 	cur_data_offset = bp->fw_stats_data_mapping +
1470 		offsetof(struct bnx2x_fw_stats_data, port);
1471 
1472 	cur_query_entry = &bp->fw_stats_req->query[BNX2X_PORT_QUERY_IDX];
1473 
1474 	cur_query_entry->kind = STATS_TYPE_PORT;
1475 	/* For port query index is a DONT CARE */
1476 	cur_query_entry->index = BP_PORT(bp);
1477 	/* For port query funcID is a DONT CARE */
1478 	cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
1479 	cur_query_entry->address.hi = cpu_to_le32(U64_HI(cur_data_offset));
1480 	cur_query_entry->address.lo = cpu_to_le32(U64_LO(cur_data_offset));
1481 
1482 	/**** PF FW statistics data ****/
1483 	cur_data_offset = bp->fw_stats_data_mapping +
1484 		offsetof(struct bnx2x_fw_stats_data, pf);
1485 
1486 	cur_query_entry = &bp->fw_stats_req->query[BNX2X_PF_QUERY_IDX];
1487 
1488 	cur_query_entry->kind = STATS_TYPE_PF;
1489 	/* For PF query index is a DONT CARE */
1490 	cur_query_entry->index = BP_PORT(bp);
1491 	cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
1492 	cur_query_entry->address.hi = cpu_to_le32(U64_HI(cur_data_offset));
1493 	cur_query_entry->address.lo = cpu_to_le32(U64_LO(cur_data_offset));
1494 
1495 	/**** FCoE FW statistics data ****/
1496 	if (!NO_FCOE(bp)) {
1497 		cur_data_offset = bp->fw_stats_data_mapping +
1498 			offsetof(struct bnx2x_fw_stats_data, fcoe);
1499 
1500 		cur_query_entry =
1501 			&bp->fw_stats_req->query[BNX2X_FCOE_QUERY_IDX];
1502 
1503 		cur_query_entry->kind = STATS_TYPE_FCOE;
1504 		/* For FCoE query index is a DONT CARE */
1505 		cur_query_entry->index = BP_PORT(bp);
1506 		cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
1507 		cur_query_entry->address.hi =
1508 			cpu_to_le32(U64_HI(cur_data_offset));
1509 		cur_query_entry->address.lo =
1510 			cpu_to_le32(U64_LO(cur_data_offset));
1511 	}
1512 
1513 	/**** Clients' queries ****/
1514 	cur_data_offset = bp->fw_stats_data_mapping +
1515 		offsetof(struct bnx2x_fw_stats_data, queue_stats);
1516 
1517 	/* first queue query index depends whether FCoE offloaded request will
1518 	 * be included in the ramrod
1519 	 */
1520 	if (!NO_FCOE(bp))
1521 		first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX;
1522 	else
1523 		first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX - 1;
1524 
1525 	for_each_eth_queue(bp, i) {
1526 		cur_query_entry =
1527 			&bp->fw_stats_req->
1528 					query[first_queue_query_index + i];
1529 
1530 		cur_query_entry->kind = STATS_TYPE_QUEUE;
1531 		cur_query_entry->index = bnx2x_stats_id(&bp->fp[i]);
1532 		cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
1533 		cur_query_entry->address.hi =
1534 			cpu_to_le32(U64_HI(cur_data_offset));
1535 		cur_query_entry->address.lo =
1536 			cpu_to_le32(U64_LO(cur_data_offset));
1537 
1538 		cur_data_offset += sizeof(struct per_queue_stats);
1539 	}
1540 
1541 	/* add FCoE queue query if needed */
1542 	if (!NO_FCOE(bp)) {
1543 		cur_query_entry =
1544 			&bp->fw_stats_req->
1545 					query[first_queue_query_index + i];
1546 
1547 		cur_query_entry->kind = STATS_TYPE_QUEUE;
1548 		cur_query_entry->index = bnx2x_stats_id(&bp->fp[FCOE_IDX(bp)]);
1549 		cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
1550 		cur_query_entry->address.hi =
1551 			cpu_to_le32(U64_HI(cur_data_offset));
1552 		cur_query_entry->address.lo =
1553 			cpu_to_le32(U64_LO(cur_data_offset));
1554 	}
1555 }
1556 
1557 void bnx2x_memset_stats(struct bnx2x *bp)
1558 {
1559 	int i;
1560 
1561 	/* function stats */
1562 	for_each_queue(bp, i) {
1563 		struct bnx2x_fp_stats *fp_stats = &bp->fp_stats[i];
1564 
1565 		memset(&fp_stats->old_tclient, 0,
1566 		       sizeof(fp_stats->old_tclient));
1567 		memset(&fp_stats->old_uclient, 0,
1568 		       sizeof(fp_stats->old_uclient));
1569 		memset(&fp_stats->old_xclient, 0,
1570 		       sizeof(fp_stats->old_xclient));
1571 		if (bp->stats_init) {
1572 			memset(&fp_stats->eth_q_stats, 0,
1573 			       sizeof(fp_stats->eth_q_stats));
1574 			memset(&fp_stats->eth_q_stats_old, 0,
1575 			       sizeof(fp_stats->eth_q_stats_old));
1576 		}
1577 	}
1578 
1579 	memset(&bp->dev->stats, 0, sizeof(bp->dev->stats));
1580 
1581 	if (bp->stats_init) {
1582 		memset(&bp->net_stats_old, 0, sizeof(bp->net_stats_old));
1583 		memset(&bp->fw_stats_old, 0, sizeof(bp->fw_stats_old));
1584 		memset(&bp->eth_stats_old, 0, sizeof(bp->eth_stats_old));
1585 		memset(&bp->eth_stats, 0, sizeof(bp->eth_stats));
1586 		memset(&bp->func_stats, 0, sizeof(bp->func_stats));
1587 	}
1588 
1589 	bp->stats_state = STATS_STATE_DISABLED;
1590 
1591 	if (bp->port.pmf && bp->port.port_stx)
1592 		bnx2x_port_stats_base_init(bp);
1593 
1594 	/* mark the end of statistics initialization */
1595 	bp->stats_init = false;
1596 }
1597 
1598 void bnx2x_stats_init(struct bnx2x *bp)
1599 {
1600 	int /*abs*/port = BP_PORT(bp);
1601 	int mb_idx = BP_FW_MB_IDX(bp);
1602 
1603 	if (IS_VF(bp)) {
1604 		bnx2x_memset_stats(bp);
1605 		return;
1606 	}
1607 
1608 	bp->stats_pending = 0;
1609 	bp->executer_idx = 0;
1610 	bp->stats_counter = 0;
1611 
1612 	/* port and func stats for management */
1613 	if (!BP_NOMCP(bp)) {
1614 		bp->port.port_stx = SHMEM_RD(bp, port_mb[port].port_stx);
1615 		bp->func_stx = SHMEM_RD(bp, func_mb[mb_idx].fw_mb_param);
1616 
1617 	} else {
1618 		bp->port.port_stx = 0;
1619 		bp->func_stx = 0;
1620 	}
1621 	DP(BNX2X_MSG_STATS, "port_stx 0x%x  func_stx 0x%x\n",
1622 	   bp->port.port_stx, bp->func_stx);
1623 
1624 	/* pmf should retrieve port statistics from SP on a non-init*/
1625 	if (!bp->stats_init && bp->port.pmf && bp->port.port_stx)
1626 		bnx2x_stats_handle(bp, STATS_EVENT_PMF);
1627 
1628 	port = BP_PORT(bp);
1629 	/* port stats */
1630 	memset(&(bp->port.old_nig_stats), 0, sizeof(struct nig_stats));
1631 	bp->port.old_nig_stats.brb_discard =
1632 			REG_RD(bp, NIG_REG_STAT0_BRB_DISCARD + port*0x38);
1633 	bp->port.old_nig_stats.brb_truncate =
1634 			REG_RD(bp, NIG_REG_STAT0_BRB_TRUNCATE + port*0x38);
1635 	if (!CHIP_IS_E3(bp)) {
1636 		REG_RD_DMAE(bp, NIG_REG_STAT0_EGRESS_MAC_PKT0 + port*0x50,
1637 			    &(bp->port.old_nig_stats.egress_mac_pkt0_lo), 2);
1638 		REG_RD_DMAE(bp, NIG_REG_STAT0_EGRESS_MAC_PKT1 + port*0x50,
1639 			    &(bp->port.old_nig_stats.egress_mac_pkt1_lo), 2);
1640 	}
1641 
1642 	/* Prepare statistics ramrod data */
1643 	bnx2x_prep_fw_stats_req(bp);
1644 
1645 	/* Clean SP from previous statistics */
1646 	if (bp->stats_init) {
1647 		if (bp->func_stx) {
1648 			memset(bnx2x_sp(bp, func_stats), 0,
1649 			       sizeof(struct host_func_stats));
1650 			bnx2x_func_stats_init(bp);
1651 			bnx2x_hw_stats_post(bp);
1652 			bnx2x_stats_comp(bp);
1653 		}
1654 	}
1655 
1656 	bnx2x_memset_stats(bp);
1657 }
1658 
1659 void bnx2x_save_statistics(struct bnx2x *bp)
1660 {
1661 	int i;
1662 	struct net_device_stats *nstats = &bp->dev->stats;
1663 
1664 	/* save queue statistics */
1665 	for_each_eth_queue(bp, i) {
1666 		struct bnx2x_fastpath *fp = &bp->fp[i];
1667 		struct bnx2x_eth_q_stats *qstats =
1668 			&bnx2x_fp_stats(bp, fp)->eth_q_stats;
1669 		struct bnx2x_eth_q_stats_old *qstats_old =
1670 			&bnx2x_fp_stats(bp, fp)->eth_q_stats_old;
1671 
1672 		UPDATE_QSTAT_OLD(total_unicast_bytes_received_hi);
1673 		UPDATE_QSTAT_OLD(total_unicast_bytes_received_lo);
1674 		UPDATE_QSTAT_OLD(total_broadcast_bytes_received_hi);
1675 		UPDATE_QSTAT_OLD(total_broadcast_bytes_received_lo);
1676 		UPDATE_QSTAT_OLD(total_multicast_bytes_received_hi);
1677 		UPDATE_QSTAT_OLD(total_multicast_bytes_received_lo);
1678 		UPDATE_QSTAT_OLD(total_unicast_bytes_transmitted_hi);
1679 		UPDATE_QSTAT_OLD(total_unicast_bytes_transmitted_lo);
1680 		UPDATE_QSTAT_OLD(total_broadcast_bytes_transmitted_hi);
1681 		UPDATE_QSTAT_OLD(total_broadcast_bytes_transmitted_lo);
1682 		UPDATE_QSTAT_OLD(total_multicast_bytes_transmitted_hi);
1683 		UPDATE_QSTAT_OLD(total_multicast_bytes_transmitted_lo);
1684 		UPDATE_QSTAT_OLD(total_tpa_bytes_hi);
1685 		UPDATE_QSTAT_OLD(total_tpa_bytes_lo);
1686 	}
1687 
1688 	/* save net_device_stats statistics */
1689 	bp->net_stats_old.rx_dropped = nstats->rx_dropped;
1690 
1691 	/* store port firmware statistics */
1692 	if (bp->port.pmf && IS_MF(bp)) {
1693 		struct bnx2x_eth_stats *estats = &bp->eth_stats;
1694 		struct bnx2x_fw_port_stats_old *fwstats = &bp->fw_stats_old;
1695 		UPDATE_FW_STAT_OLD(mac_filter_discard);
1696 		UPDATE_FW_STAT_OLD(mf_tag_discard);
1697 		UPDATE_FW_STAT_OLD(brb_truncate_discard);
1698 		UPDATE_FW_STAT_OLD(mac_discard);
1699 	}
1700 }
1701 
1702 void bnx2x_afex_collect_stats(struct bnx2x *bp, void *void_afex_stats,
1703 			      u32 stats_type)
1704 {
1705 	int i;
1706 	struct afex_stats *afex_stats = (struct afex_stats *)void_afex_stats;
1707 	struct bnx2x_eth_stats *estats = &bp->eth_stats;
1708 	struct per_queue_stats *fcoe_q_stats =
1709 		&bp->fw_stats_data->queue_stats[FCOE_IDX(bp)];
1710 
1711 	struct tstorm_per_queue_stats *fcoe_q_tstorm_stats =
1712 		&fcoe_q_stats->tstorm_queue_statistics;
1713 
1714 	struct ustorm_per_queue_stats *fcoe_q_ustorm_stats =
1715 		&fcoe_q_stats->ustorm_queue_statistics;
1716 
1717 	struct xstorm_per_queue_stats *fcoe_q_xstorm_stats =
1718 		&fcoe_q_stats->xstorm_queue_statistics;
1719 
1720 	struct fcoe_statistics_params *fw_fcoe_stat =
1721 		&bp->fw_stats_data->fcoe;
1722 
1723 	memset(afex_stats, 0, sizeof(struct afex_stats));
1724 
1725 	for_each_eth_queue(bp, i) {
1726 		struct bnx2x_eth_q_stats *qstats = &bp->fp_stats[i].eth_q_stats;
1727 
1728 		ADD_64(afex_stats->rx_unicast_bytes_hi,
1729 		       qstats->total_unicast_bytes_received_hi,
1730 		       afex_stats->rx_unicast_bytes_lo,
1731 		       qstats->total_unicast_bytes_received_lo);
1732 
1733 		ADD_64(afex_stats->rx_broadcast_bytes_hi,
1734 		       qstats->total_broadcast_bytes_received_hi,
1735 		       afex_stats->rx_broadcast_bytes_lo,
1736 		       qstats->total_broadcast_bytes_received_lo);
1737 
1738 		ADD_64(afex_stats->rx_multicast_bytes_hi,
1739 		       qstats->total_multicast_bytes_received_hi,
1740 		       afex_stats->rx_multicast_bytes_lo,
1741 		       qstats->total_multicast_bytes_received_lo);
1742 
1743 		ADD_64(afex_stats->rx_unicast_frames_hi,
1744 		       qstats->total_unicast_packets_received_hi,
1745 		       afex_stats->rx_unicast_frames_lo,
1746 		       qstats->total_unicast_packets_received_lo);
1747 
1748 		ADD_64(afex_stats->rx_broadcast_frames_hi,
1749 		       qstats->total_broadcast_packets_received_hi,
1750 		       afex_stats->rx_broadcast_frames_lo,
1751 		       qstats->total_broadcast_packets_received_lo);
1752 
1753 		ADD_64(afex_stats->rx_multicast_frames_hi,
1754 		       qstats->total_multicast_packets_received_hi,
1755 		       afex_stats->rx_multicast_frames_lo,
1756 		       qstats->total_multicast_packets_received_lo);
1757 
1758 		/* sum to rx_frames_discarded all discraded
1759 		 * packets due to size, ttl0 and checksum
1760 		 */
1761 		ADD_64(afex_stats->rx_frames_discarded_hi,
1762 		       qstats->total_packets_received_checksum_discarded_hi,
1763 		       afex_stats->rx_frames_discarded_lo,
1764 		       qstats->total_packets_received_checksum_discarded_lo);
1765 
1766 		ADD_64(afex_stats->rx_frames_discarded_hi,
1767 		       qstats->total_packets_received_ttl0_discarded_hi,
1768 		       afex_stats->rx_frames_discarded_lo,
1769 		       qstats->total_packets_received_ttl0_discarded_lo);
1770 
1771 		ADD_64(afex_stats->rx_frames_discarded_hi,
1772 		       qstats->etherstatsoverrsizepkts_hi,
1773 		       afex_stats->rx_frames_discarded_lo,
1774 		       qstats->etherstatsoverrsizepkts_lo);
1775 
1776 		ADD_64(afex_stats->rx_frames_dropped_hi,
1777 		       qstats->no_buff_discard_hi,
1778 		       afex_stats->rx_frames_dropped_lo,
1779 		       qstats->no_buff_discard_lo);
1780 
1781 		ADD_64(afex_stats->tx_unicast_bytes_hi,
1782 		       qstats->total_unicast_bytes_transmitted_hi,
1783 		       afex_stats->tx_unicast_bytes_lo,
1784 		       qstats->total_unicast_bytes_transmitted_lo);
1785 
1786 		ADD_64(afex_stats->tx_broadcast_bytes_hi,
1787 		       qstats->total_broadcast_bytes_transmitted_hi,
1788 		       afex_stats->tx_broadcast_bytes_lo,
1789 		       qstats->total_broadcast_bytes_transmitted_lo);
1790 
1791 		ADD_64(afex_stats->tx_multicast_bytes_hi,
1792 		       qstats->total_multicast_bytes_transmitted_hi,
1793 		       afex_stats->tx_multicast_bytes_lo,
1794 		       qstats->total_multicast_bytes_transmitted_lo);
1795 
1796 		ADD_64(afex_stats->tx_unicast_frames_hi,
1797 		       qstats->total_unicast_packets_transmitted_hi,
1798 		       afex_stats->tx_unicast_frames_lo,
1799 		       qstats->total_unicast_packets_transmitted_lo);
1800 
1801 		ADD_64(afex_stats->tx_broadcast_frames_hi,
1802 		       qstats->total_broadcast_packets_transmitted_hi,
1803 		       afex_stats->tx_broadcast_frames_lo,
1804 		       qstats->total_broadcast_packets_transmitted_lo);
1805 
1806 		ADD_64(afex_stats->tx_multicast_frames_hi,
1807 		       qstats->total_multicast_packets_transmitted_hi,
1808 		       afex_stats->tx_multicast_frames_lo,
1809 		       qstats->total_multicast_packets_transmitted_lo);
1810 
1811 		ADD_64(afex_stats->tx_frames_dropped_hi,
1812 		       qstats->total_transmitted_dropped_packets_error_hi,
1813 		       afex_stats->tx_frames_dropped_lo,
1814 		       qstats->total_transmitted_dropped_packets_error_lo);
1815 	}
1816 
1817 	/* now add FCoE statistics which are collected separately
1818 	 * (both offloaded and non offloaded)
1819 	 */
1820 	if (!NO_FCOE(bp)) {
1821 		ADD_64_LE(afex_stats->rx_unicast_bytes_hi,
1822 			  LE32_0,
1823 			  afex_stats->rx_unicast_bytes_lo,
1824 			  fw_fcoe_stat->rx_stat0.fcoe_rx_byte_cnt);
1825 
1826 		ADD_64_LE(afex_stats->rx_unicast_bytes_hi,
1827 			  fcoe_q_tstorm_stats->rcv_ucast_bytes.hi,
1828 			  afex_stats->rx_unicast_bytes_lo,
1829 			  fcoe_q_tstorm_stats->rcv_ucast_bytes.lo);
1830 
1831 		ADD_64_LE(afex_stats->rx_broadcast_bytes_hi,
1832 			  fcoe_q_tstorm_stats->rcv_bcast_bytes.hi,
1833 			  afex_stats->rx_broadcast_bytes_lo,
1834 			  fcoe_q_tstorm_stats->rcv_bcast_bytes.lo);
1835 
1836 		ADD_64_LE(afex_stats->rx_multicast_bytes_hi,
1837 			  fcoe_q_tstorm_stats->rcv_mcast_bytes.hi,
1838 			  afex_stats->rx_multicast_bytes_lo,
1839 			  fcoe_q_tstorm_stats->rcv_mcast_bytes.lo);
1840 
1841 		ADD_64_LE(afex_stats->rx_unicast_frames_hi,
1842 			  LE32_0,
1843 			  afex_stats->rx_unicast_frames_lo,
1844 			  fw_fcoe_stat->rx_stat0.fcoe_rx_pkt_cnt);
1845 
1846 		ADD_64_LE(afex_stats->rx_unicast_frames_hi,
1847 			  LE32_0,
1848 			  afex_stats->rx_unicast_frames_lo,
1849 			  fcoe_q_tstorm_stats->rcv_ucast_pkts);
1850 
1851 		ADD_64_LE(afex_stats->rx_broadcast_frames_hi,
1852 			  LE32_0,
1853 			  afex_stats->rx_broadcast_frames_lo,
1854 			  fcoe_q_tstorm_stats->rcv_bcast_pkts);
1855 
1856 		ADD_64_LE(afex_stats->rx_multicast_frames_hi,
1857 			  LE32_0,
1858 			  afex_stats->rx_multicast_frames_lo,
1859 			  fcoe_q_tstorm_stats->rcv_ucast_pkts);
1860 
1861 		ADD_64_LE(afex_stats->rx_frames_discarded_hi,
1862 			  LE32_0,
1863 			  afex_stats->rx_frames_discarded_lo,
1864 			  fcoe_q_tstorm_stats->checksum_discard);
1865 
1866 		ADD_64_LE(afex_stats->rx_frames_discarded_hi,
1867 			  LE32_0,
1868 			  afex_stats->rx_frames_discarded_lo,
1869 			  fcoe_q_tstorm_stats->pkts_too_big_discard);
1870 
1871 		ADD_64_LE(afex_stats->rx_frames_discarded_hi,
1872 			  LE32_0,
1873 			  afex_stats->rx_frames_discarded_lo,
1874 			  fcoe_q_tstorm_stats->ttl0_discard);
1875 
1876 		ADD_64_LE16(afex_stats->rx_frames_dropped_hi,
1877 			    LE16_0,
1878 			    afex_stats->rx_frames_dropped_lo,
1879 			    fcoe_q_tstorm_stats->no_buff_discard);
1880 
1881 		ADD_64_LE(afex_stats->rx_frames_dropped_hi,
1882 			  LE32_0,
1883 			  afex_stats->rx_frames_dropped_lo,
1884 			  fcoe_q_ustorm_stats->ucast_no_buff_pkts);
1885 
1886 		ADD_64_LE(afex_stats->rx_frames_dropped_hi,
1887 			  LE32_0,
1888 			  afex_stats->rx_frames_dropped_lo,
1889 			  fcoe_q_ustorm_stats->mcast_no_buff_pkts);
1890 
1891 		ADD_64_LE(afex_stats->rx_frames_dropped_hi,
1892 			  LE32_0,
1893 			  afex_stats->rx_frames_dropped_lo,
1894 			  fcoe_q_ustorm_stats->bcast_no_buff_pkts);
1895 
1896 		ADD_64_LE(afex_stats->rx_frames_dropped_hi,
1897 			  LE32_0,
1898 			  afex_stats->rx_frames_dropped_lo,
1899 			  fw_fcoe_stat->rx_stat1.fcoe_rx_drop_pkt_cnt);
1900 
1901 		ADD_64_LE(afex_stats->rx_frames_dropped_hi,
1902 			  LE32_0,
1903 			  afex_stats->rx_frames_dropped_lo,
1904 			  fw_fcoe_stat->rx_stat2.fcoe_rx_drop_pkt_cnt);
1905 
1906 		ADD_64_LE(afex_stats->tx_unicast_bytes_hi,
1907 			  LE32_0,
1908 			  afex_stats->tx_unicast_bytes_lo,
1909 			  fw_fcoe_stat->tx_stat.fcoe_tx_byte_cnt);
1910 
1911 		ADD_64_LE(afex_stats->tx_unicast_bytes_hi,
1912 			  fcoe_q_xstorm_stats->ucast_bytes_sent.hi,
1913 			  afex_stats->tx_unicast_bytes_lo,
1914 			  fcoe_q_xstorm_stats->ucast_bytes_sent.lo);
1915 
1916 		ADD_64_LE(afex_stats->tx_broadcast_bytes_hi,
1917 			  fcoe_q_xstorm_stats->bcast_bytes_sent.hi,
1918 			  afex_stats->tx_broadcast_bytes_lo,
1919 			  fcoe_q_xstorm_stats->bcast_bytes_sent.lo);
1920 
1921 		ADD_64_LE(afex_stats->tx_multicast_bytes_hi,
1922 			  fcoe_q_xstorm_stats->mcast_bytes_sent.hi,
1923 			  afex_stats->tx_multicast_bytes_lo,
1924 			  fcoe_q_xstorm_stats->mcast_bytes_sent.lo);
1925 
1926 		ADD_64_LE(afex_stats->tx_unicast_frames_hi,
1927 			  LE32_0,
1928 			  afex_stats->tx_unicast_frames_lo,
1929 			  fw_fcoe_stat->tx_stat.fcoe_tx_pkt_cnt);
1930 
1931 		ADD_64_LE(afex_stats->tx_unicast_frames_hi,
1932 			  LE32_0,
1933 			  afex_stats->tx_unicast_frames_lo,
1934 			  fcoe_q_xstorm_stats->ucast_pkts_sent);
1935 
1936 		ADD_64_LE(afex_stats->tx_broadcast_frames_hi,
1937 			  LE32_0,
1938 			  afex_stats->tx_broadcast_frames_lo,
1939 			  fcoe_q_xstorm_stats->bcast_pkts_sent);
1940 
1941 		ADD_64_LE(afex_stats->tx_multicast_frames_hi,
1942 			  LE32_0,
1943 			  afex_stats->tx_multicast_frames_lo,
1944 			  fcoe_q_xstorm_stats->mcast_pkts_sent);
1945 
1946 		ADD_64_LE(afex_stats->tx_frames_dropped_hi,
1947 			  LE32_0,
1948 			  afex_stats->tx_frames_dropped_lo,
1949 			  fcoe_q_xstorm_stats->error_drop_pkts);
1950 	}
1951 
1952 	/* if port stats are requested, add them to the PMF
1953 	 * stats, as anyway they will be accumulated by the
1954 	 * MCP before sent to the switch
1955 	 */
1956 	if ((bp->port.pmf) && (stats_type == VICSTATST_UIF_INDEX)) {
1957 		ADD_64(afex_stats->rx_frames_dropped_hi,
1958 		       0,
1959 		       afex_stats->rx_frames_dropped_lo,
1960 		       estats->mac_filter_discard);
1961 		ADD_64(afex_stats->rx_frames_dropped_hi,
1962 		       0,
1963 		       afex_stats->rx_frames_dropped_lo,
1964 		       estats->brb_truncate_discard);
1965 		ADD_64(afex_stats->rx_frames_discarded_hi,
1966 		       0,
1967 		       afex_stats->rx_frames_discarded_lo,
1968 		       estats->mac_discard);
1969 	}
1970 }
1971 
1972 int bnx2x_stats_safe_exec(struct bnx2x *bp,
1973 			  void (func_to_exec)(void *cookie),
1974 			  void *cookie)
1975 {
1976 	int cnt = 10, rc = 0;
1977 
1978 	/* Wait for statistics to end [while blocking further requests],
1979 	 * then run supplied function 'safely'.
1980 	 */
1981 	rc = down_timeout(&bp->stats_lock, HZ / 10);
1982 	if (unlikely(rc)) {
1983 		BNX2X_ERR("Failed to take statistics lock for safe execution\n");
1984 		goto out_no_lock;
1985 	}
1986 
1987 	bnx2x_stats_comp(bp);
1988 	while (bp->stats_pending && cnt--)
1989 		if (bnx2x_storm_stats_update(bp))
1990 			usleep_range(1000, 2000);
1991 	if (bp->stats_pending) {
1992 		BNX2X_ERR("Failed to wait for stats pending to clear [possibly FW is stuck]\n");
1993 		rc = -EBUSY;
1994 		goto out;
1995 	}
1996 
1997 	func_to_exec(cookie);
1998 
1999 out:
2000 	/* No need to restart statistics - if they're enabled, the timer
2001 	 * will restart the statistics.
2002 	 */
2003 	up(&bp->stats_lock);
2004 out_no_lock:
2005 	return rc;
2006 }
2007