xref: /freebsd/sys/dev/bxe/bxe_stats.c (revision 2008043f386721d58158e37e0d7e50df8095942d)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2007-2014 QLogic Corporation. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS'
17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26  * THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 #include "bxe.h"
31 #include "bxe_stats.h"
32 
33 #ifdef __i386__
34 #define BITS_PER_LONG 32
35 #else
36 #define BITS_PER_LONG 64
37 #endif
38 
39 
40 static inline long
41 bxe_hilo(uint32_t *hiref)
42 {
43     uint32_t lo = *(hiref + 1);
44 #if (BITS_PER_LONG == 64)
45     uint32_t hi = *hiref;
46     return (HILO_U64(hi, lo));
47 #else
48     return (lo);
49 #endif
50 }
51 
52 static inline uint16_t
53 bxe_get_port_stats_dma_len(struct bxe_softc *sc)
54 {
55     uint16_t res = 0;
56     uint32_t size;
57 
58     /* 'newest' convention - shmem2 contains the size of the port stats */
59     if (SHMEM2_HAS(sc, sizeof_port_stats)) {
60         size = SHMEM2_RD(sc, sizeof_port_stats);
61         if (size) {
62             res = size;
63         }
64 
65         /* prevent newer BC from causing buffer overflow */
66         if (res > sizeof(struct host_port_stats)) {
67             res = sizeof(struct host_port_stats);
68         }
69     }
70 
71     /*
72      * Older convention - all BCs support the port stats fields up until
73      * the 'not_used' field
74      */
75     if (!res) {
76         res = (offsetof(struct host_port_stats, not_used) + 4);
77 
78         /* if PFC stats are supported by the MFW, DMA them as well */
79         if (sc->devinfo.bc_ver >= REQ_BC_VER_4_PFC_STATS_SUPPORTED) {
80             res += (offsetof(struct host_port_stats, pfc_frames_rx_lo) -
81                     offsetof(struct host_port_stats, pfc_frames_tx_hi) + 4);
82         }
83     }
84 
85     res >>= 2;
86 
87     DBASSERT(sc, !(res > 2 * DMAE_LEN32_RD_MAX), ("big stats dmae length\n"));
88     return (res);
89 }
90 
91 /*
92  * Init service functions
93  */
94 
95 static void
96 bxe_dp_stats(struct bxe_softc *sc)
97 {
98     int i;
99 
100     BLOGD(sc, DBG_STATS,
101           "dumping stats:\n"
102           "  fw_stats_req\n"
103           "    hdr\n"
104           "      cmd_num %d\n"
105           "      reserved0 %d\n"
106           "      drv_stats_counter %d\n"
107           "      reserved1 %d\n"
108           "      stats_counters_addrs %x %x\n",
109           sc->fw_stats_req->hdr.cmd_num,
110           sc->fw_stats_req->hdr.reserved0,
111           sc->fw_stats_req->hdr.drv_stats_counter,
112           sc->fw_stats_req->hdr.reserved1,
113           sc->fw_stats_req->hdr.stats_counters_addrs.hi,
114           sc->fw_stats_req->hdr.stats_counters_addrs.lo);
115 
116     for (i = 0; i < sc->fw_stats_req->hdr.cmd_num; i++) {
117         BLOGD(sc, DBG_STATS,
118               "query[%d]\n"
119               "  kind %d\n"
120               "  index %d\n"
121               "  funcID %d\n"
122               "  reserved %d\n"
123               "  address %x %x\n",
124               i,
125               sc->fw_stats_req->query[i].kind,
126               sc->fw_stats_req->query[i].index,
127               sc->fw_stats_req->query[i].funcID,
128               sc->fw_stats_req->query[i].reserved,
129               sc->fw_stats_req->query[i].address.hi,
130               sc->fw_stats_req->query[i].address.lo);
131     }
132 }
133 
134 /*
135  * Post the next statistics ramrod. Protect it with the lock in
136  * order to ensure the strict order between statistics ramrods
137  * (each ramrod has a sequence number passed in a
138  * sc->fw_stats_req->hdr.drv_stats_counter and ramrods must be
139  * sent in order).
140  */
141 static void
142 bxe_storm_stats_post(struct bxe_softc *sc)
143 {
144     int rc;
145 
146     if (!sc->stats_pending) {
147         BXE_STATS_LOCK(sc);
148 
149         if (sc->stats_pending) {
150             BXE_STATS_UNLOCK(sc);
151             return;
152         }
153 
154         sc->fw_stats_req->hdr.drv_stats_counter =
155             htole16(sc->stats_counter++);
156 
157         BLOGD(sc, DBG_STATS,
158               "sending statistics ramrod %d\n",
159               le16toh(sc->fw_stats_req->hdr.drv_stats_counter));
160 
161         /* adjust the ramrod to include VF queues statistics */
162         // XXX bxe_iov_adjust_stats_req(sc);
163 
164         bxe_dp_stats(sc);
165 
166         /* send FW stats ramrod */
167         rc = bxe_sp_post(sc, RAMROD_CMD_ID_COMMON_STAT_QUERY, 0,
168                          U64_HI(sc->fw_stats_req_mapping),
169                          U64_LO(sc->fw_stats_req_mapping),
170                          NONE_CONNECTION_TYPE);
171         if (rc == 0) {
172             sc->stats_pending = 1;
173         }
174 
175         BXE_STATS_UNLOCK(sc);
176     }
177 }
178 
179 static void
180 bxe_hw_stats_post(struct bxe_softc *sc)
181 {
182     struct dmae_cmd *dmae = &sc->stats_dmae;
183     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
184     int loader_idx;
185     uint32_t opcode;
186 
187     *stats_comp = DMAE_COMP_VAL;
188     if (CHIP_REV_IS_SLOW(sc)) {
189         return;
190     }
191 
192     /* Update MCP's statistics if possible */
193     if (sc->func_stx) {
194         memcpy(BXE_SP(sc, func_stats), &sc->func_stats,
195                sizeof(sc->func_stats));
196     }
197 
198     /* loader */
199     if (sc->executer_idx) {
200         loader_idx = PMF_DMAE_C(sc);
201         opcode =  bxe_dmae_opcode(sc, DMAE_SRC_PCI, DMAE_DST_GRC,
202                                   TRUE, DMAE_COMP_GRC);
203         opcode = bxe_dmae_opcode_clr_src_reset(opcode);
204 
205         memset(dmae, 0, sizeof(struct dmae_cmd));
206         dmae->opcode = opcode;
207         dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, dmae[0]));
208         dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, dmae[0]));
209         dmae->dst_addr_lo = ((DMAE_REG_CMD_MEM +
210                               sizeof(struct dmae_cmd) *
211                               (loader_idx + 1)) >> 2);
212         dmae->dst_addr_hi = 0;
213         dmae->len = sizeof(struct dmae_cmd) >> 2;
214         if (CHIP_IS_E1(sc)) {
215             dmae->len--;
216         }
217         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx + 1] >> 2);
218         dmae->comp_addr_hi = 0;
219         dmae->comp_val = 1;
220 
221         *stats_comp = 0;
222         bxe_post_dmae(sc, dmae, loader_idx);
223     } else if (sc->func_stx) {
224         *stats_comp = 0;
225         bxe_post_dmae(sc, dmae, INIT_DMAE_C(sc));
226     }
227 }
228 
229 static int
230 bxe_stats_comp(struct bxe_softc *sc)
231 {
232     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
233     int cnt = 10;
234 
235     while (*stats_comp != DMAE_COMP_VAL) {
236         if (!cnt) {
237             BLOGE(sc, "Timeout waiting for stats finished\n");
238 	    BXE_SET_ERROR_BIT(sc, BXE_ERR_STATS_TO);
239             taskqueue_enqueue_timeout(taskqueue_thread,
240                 &sc->sp_err_timeout_task, hz/10);
241             break;
242 
243         }
244 
245         cnt--;
246         DELAY(1000);
247     }
248 
249     return (1);
250 }
251 
252 /*
253  * Statistics service functions
254  */
255 
256 static void
257 bxe_stats_pmf_update(struct bxe_softc *sc)
258 {
259     struct dmae_cmd *dmae;
260     uint32_t opcode;
261     int loader_idx = PMF_DMAE_C(sc);
262     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
263 
264     if (sc->devinfo.bc_ver <= 0x06001400) {
265         /*
266          * Bootcode v6.0.21 fixed a GRC timeout that occurs when accessing
267          * BRB registers while the BRB block is in reset. The DMA transfer
268          * below triggers this issue resulting in the DMAE to stop
269          * functioning. Skip this initial stats transfer for old bootcode
270          * versions <= 6.0.20.
271          */
272         return;
273     }
274 
275     /* sanity */
276     if (!sc->port.pmf || !sc->port.port_stx) {
277         BLOGE(sc, "BUG!\n");
278         return;
279     }
280 
281     sc->executer_idx = 0;
282 
283     opcode = bxe_dmae_opcode(sc, DMAE_SRC_GRC, DMAE_DST_PCI, FALSE, 0);
284 
285     dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
286     dmae->opcode = bxe_dmae_opcode_add_comp(opcode, DMAE_COMP_GRC);
287     dmae->src_addr_lo = (sc->port.port_stx >> 2);
288     dmae->src_addr_hi = 0;
289     dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, port_stats));
290     dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, port_stats));
291     dmae->len = DMAE_LEN32_RD_MAX;
292     dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
293     dmae->comp_addr_hi = 0;
294     dmae->comp_val = 1;
295 
296     dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
297     dmae->opcode = bxe_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
298     dmae->src_addr_lo = ((sc->port.port_stx >> 2) + DMAE_LEN32_RD_MAX);
299     dmae->src_addr_hi = 0;
300     dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, port_stats) +
301                                DMAE_LEN32_RD_MAX * 4);
302     dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, port_stats) +
303                                DMAE_LEN32_RD_MAX * 4);
304     dmae->len = (bxe_get_port_stats_dma_len(sc) - DMAE_LEN32_RD_MAX);
305 
306     dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
307     dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
308     dmae->comp_val = DMAE_COMP_VAL;
309 
310     *stats_comp = 0;
311     bxe_hw_stats_post(sc);
312     bxe_stats_comp(sc);
313 }
314 
315 static void
316 bxe_port_stats_init(struct bxe_softc *sc)
317 {
318     struct dmae_cmd *dmae;
319     int port = SC_PORT(sc);
320     uint32_t opcode;
321     int loader_idx = PMF_DMAE_C(sc);
322     uint32_t mac_addr;
323     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
324 
325     /* sanity */
326     if (!sc->link_vars.link_up || !sc->port.pmf) {
327         BLOGE(sc, "BUG!\n");
328         return;
329     }
330 
331     sc->executer_idx = 0;
332 
333     /* MCP */
334     opcode = bxe_dmae_opcode(sc, DMAE_SRC_PCI, DMAE_DST_GRC,
335                              TRUE, DMAE_COMP_GRC);
336 
337     if (sc->port.port_stx) {
338         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
339         dmae->opcode = opcode;
340         dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, port_stats));
341         dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, port_stats));
342         dmae->dst_addr_lo = sc->port.port_stx >> 2;
343         dmae->dst_addr_hi = 0;
344         dmae->len = bxe_get_port_stats_dma_len(sc);
345         dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
346         dmae->comp_addr_hi = 0;
347         dmae->comp_val = 1;
348     }
349 
350     if (sc->func_stx) {
351         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
352         dmae->opcode = opcode;
353         dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, func_stats));
354         dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, func_stats));
355         dmae->dst_addr_lo = (sc->func_stx >> 2);
356         dmae->dst_addr_hi = 0;
357         dmae->len = (sizeof(struct host_func_stats) >> 2);
358         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
359         dmae->comp_addr_hi = 0;
360         dmae->comp_val = 1;
361     }
362 
363     /* MAC */
364     opcode = bxe_dmae_opcode(sc, DMAE_SRC_GRC, DMAE_DST_PCI,
365                              TRUE, DMAE_COMP_GRC);
366 
367     /* EMAC is special */
368     if (sc->link_vars.mac_type == ELINK_MAC_TYPE_EMAC) {
369         mac_addr = (port ? GRCBASE_EMAC1 : GRCBASE_EMAC0);
370 
371         /* EMAC_REG_EMAC_RX_STAT_AC (EMAC_REG_EMAC_RX_STAT_AC_COUNT)*/
372         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
373         dmae->opcode = opcode;
374         dmae->src_addr_lo = (mac_addr + EMAC_REG_EMAC_RX_STAT_AC) >> 2;
375         dmae->src_addr_hi = 0;
376         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, mac_stats));
377         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, mac_stats));
378         dmae->len = EMAC_REG_EMAC_RX_STAT_AC_COUNT;
379         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
380         dmae->comp_addr_hi = 0;
381         dmae->comp_val = 1;
382 
383         /* EMAC_REG_EMAC_RX_STAT_AC_28 */
384         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
385         dmae->opcode = opcode;
386         dmae->src_addr_lo = ((mac_addr + EMAC_REG_EMAC_RX_STAT_AC_28) >> 2);
387         dmae->src_addr_hi = 0;
388         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, mac_stats) +
389                                    offsetof(struct emac_stats,
390                                             rx_stat_falsecarriererrors));
391         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, mac_stats) +
392                                    offsetof(struct emac_stats,
393                                             rx_stat_falsecarriererrors));
394         dmae->len = 1;
395         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
396         dmae->comp_addr_hi = 0;
397         dmae->comp_val = 1;
398 
399         /* EMAC_REG_EMAC_TX_STAT_AC (EMAC_REG_EMAC_TX_STAT_AC_COUNT)*/
400         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
401         dmae->opcode = opcode;
402         dmae->src_addr_lo = ((mac_addr + EMAC_REG_EMAC_TX_STAT_AC) >> 2);
403         dmae->src_addr_hi = 0;
404         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, mac_stats) +
405                                    offsetof(struct emac_stats,
406                                             tx_stat_ifhcoutoctets));
407         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, mac_stats) +
408                                    offsetof(struct emac_stats,
409                                             tx_stat_ifhcoutoctets));
410         dmae->len = EMAC_REG_EMAC_TX_STAT_AC_COUNT;
411         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
412         dmae->comp_addr_hi = 0;
413         dmae->comp_val = 1;
414     } else {
415         uint32_t tx_src_addr_lo, rx_src_addr_lo;
416         uint16_t rx_len, tx_len;
417 
418         /* configure the params according to MAC type */
419         switch (sc->link_vars.mac_type) {
420         case ELINK_MAC_TYPE_BMAC:
421             mac_addr = (port) ? NIG_REG_INGRESS_BMAC1_MEM :
422                                 NIG_REG_INGRESS_BMAC0_MEM;
423 
424             /* BIGMAC_REGISTER_TX_STAT_GTPKT ..
425                BIGMAC_REGISTER_TX_STAT_GTBYT */
426             if (CHIP_IS_E1x(sc)) {
427                 tx_src_addr_lo =
428                     ((mac_addr + BIGMAC_REGISTER_TX_STAT_GTPKT) >> 2);
429                 tx_len = ((8 + BIGMAC_REGISTER_TX_STAT_GTBYT -
430                            BIGMAC_REGISTER_TX_STAT_GTPKT) >> 2);
431                 rx_src_addr_lo =
432                     ((mac_addr + BIGMAC_REGISTER_RX_STAT_GR64) >> 2);
433                 rx_len = ((8 + BIGMAC_REGISTER_RX_STAT_GRIPJ -
434                            BIGMAC_REGISTER_RX_STAT_GR64) >> 2);
435             } else {
436                 tx_src_addr_lo =
437                     ((mac_addr + BIGMAC2_REGISTER_TX_STAT_GTPOK) >> 2);
438                 tx_len = ((8 + BIGMAC2_REGISTER_TX_STAT_GTBYT -
439                            BIGMAC2_REGISTER_TX_STAT_GTPOK) >> 2);
440                 rx_src_addr_lo =
441                     ((mac_addr + BIGMAC2_REGISTER_RX_STAT_GR64) >> 2);
442                 rx_len = ((8 + BIGMAC2_REGISTER_RX_STAT_GRIPJ -
443                            BIGMAC2_REGISTER_RX_STAT_GR64) >> 2);
444             }
445 
446             break;
447 
448         case ELINK_MAC_TYPE_UMAC: /* handled by MSTAT */
449         case ELINK_MAC_TYPE_XMAC: /* handled by MSTAT */
450         default:
451             mac_addr = (port) ? GRCBASE_MSTAT1 : GRCBASE_MSTAT0;
452             tx_src_addr_lo = ((mac_addr + MSTAT_REG_TX_STAT_GTXPOK_LO) >> 2);
453             rx_src_addr_lo = ((mac_addr + MSTAT_REG_RX_STAT_GR64_LO) >> 2);
454             tx_len =
455                 (sizeof(sc->sp->mac_stats.mstat_stats.stats_tx) >> 2);
456             rx_len =
457                 (sizeof(sc->sp->mac_stats.mstat_stats.stats_rx) >> 2);
458             break;
459         }
460 
461         /* TX stats */
462         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
463         dmae->opcode = opcode;
464         dmae->src_addr_lo = tx_src_addr_lo;
465         dmae->src_addr_hi = 0;
466         dmae->len = tx_len;
467         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, mac_stats));
468         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, mac_stats));
469         dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
470         dmae->comp_addr_hi = 0;
471         dmae->comp_val = 1;
472 
473         /* RX stats */
474         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
475         dmae->opcode = opcode;
476         dmae->src_addr_hi = 0;
477         dmae->src_addr_lo = rx_src_addr_lo;
478         dmae->dst_addr_lo =
479             U64_LO(BXE_SP_MAPPING(sc, mac_stats) + (tx_len << 2));
480         dmae->dst_addr_hi =
481             U64_HI(BXE_SP_MAPPING(sc, mac_stats) + (tx_len << 2));
482         dmae->len = rx_len;
483         dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
484         dmae->comp_addr_hi = 0;
485         dmae->comp_val = 1;
486     }
487 
488     /* NIG */
489     if (!CHIP_IS_E3(sc)) {
490         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
491         dmae->opcode = opcode;
492         dmae->src_addr_lo =
493             (port ? NIG_REG_STAT1_EGRESS_MAC_PKT0 :
494                     NIG_REG_STAT0_EGRESS_MAC_PKT0) >> 2;
495         dmae->src_addr_hi = 0;
496         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, nig_stats) +
497                                    offsetof(struct nig_stats,
498                                             egress_mac_pkt0_lo));
499         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, nig_stats) +
500                                    offsetof(struct nig_stats,
501                                             egress_mac_pkt0_lo));
502         dmae->len = ((2 * sizeof(uint32_t)) >> 2);
503         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
504         dmae->comp_addr_hi = 0;
505         dmae->comp_val = 1;
506 
507         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
508         dmae->opcode = opcode;
509         dmae->src_addr_lo =
510             (port ? NIG_REG_STAT1_EGRESS_MAC_PKT1 :
511                     NIG_REG_STAT0_EGRESS_MAC_PKT1) >> 2;
512         dmae->src_addr_hi = 0;
513         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, nig_stats) +
514                                    offsetof(struct nig_stats,
515                                             egress_mac_pkt1_lo));
516         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, nig_stats) +
517                                    offsetof(struct nig_stats,
518                                             egress_mac_pkt1_lo));
519         dmae->len = ((2 * sizeof(uint32_t)) >> 2);
520         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
521         dmae->comp_addr_hi = 0;
522         dmae->comp_val = 1;
523     }
524 
525     dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
526     dmae->opcode = bxe_dmae_opcode(sc, DMAE_SRC_GRC, DMAE_DST_PCI,
527                                    TRUE, DMAE_COMP_PCI);
528     dmae->src_addr_lo =
529         (port ? NIG_REG_STAT1_BRB_DISCARD :
530                 NIG_REG_STAT0_BRB_DISCARD) >> 2;
531     dmae->src_addr_hi = 0;
532     dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, nig_stats));
533     dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, nig_stats));
534     dmae->len = (sizeof(struct nig_stats) - 4*sizeof(uint32_t)) >> 2;
535 
536     dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
537     dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
538     dmae->comp_val = DMAE_COMP_VAL;
539 
540     *stats_comp = 0;
541 }
542 
543 static void
544 bxe_func_stats_init(struct bxe_softc *sc)
545 {
546     struct dmae_cmd *dmae = &sc->stats_dmae;
547     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
548 
549     /* sanity */
550     if (!sc->func_stx) {
551         BLOGE(sc, "BUG!\n");
552         return;
553     }
554 
555     sc->executer_idx = 0;
556     memset(dmae, 0, sizeof(struct dmae_cmd));
557 
558     dmae->opcode = bxe_dmae_opcode(sc, DMAE_SRC_PCI, DMAE_DST_GRC,
559                                    TRUE, DMAE_COMP_PCI);
560     dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, func_stats));
561     dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, func_stats));
562     dmae->dst_addr_lo = (sc->func_stx >> 2);
563     dmae->dst_addr_hi = 0;
564     dmae->len = (sizeof(struct host_func_stats) >> 2);
565     dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
566     dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
567     dmae->comp_val = DMAE_COMP_VAL;
568 
569     *stats_comp = 0;
570 }
571 
572 static void
573 bxe_stats_start(struct bxe_softc *sc)
574 {
575     /*
576      * VFs travel through here as part of the statistics FSM, but no action
577      * is required
578      */
579     if (IS_VF(sc)) {
580         return;
581     }
582 
583     if (sc->port.pmf) {
584         bxe_port_stats_init(sc);
585     }
586 
587     else if (sc->func_stx) {
588         bxe_func_stats_init(sc);
589     }
590 
591     bxe_hw_stats_post(sc);
592     bxe_storm_stats_post(sc);
593 }
594 
595 static void
596 bxe_stats_pmf_start(struct bxe_softc *sc)
597 {
598     bxe_stats_comp(sc);
599     bxe_stats_pmf_update(sc);
600     bxe_stats_start(sc);
601 }
602 
603 static void
604 bxe_stats_restart(struct bxe_softc *sc)
605 {
606     /*
607      * VFs travel through here as part of the statistics FSM, but no action
608      * is required
609      */
610     if (IS_VF(sc)) {
611         return;
612     }
613 
614     bxe_stats_comp(sc);
615     bxe_stats_start(sc);
616 }
617 
618 static void
619 bxe_bmac_stats_update(struct bxe_softc *sc)
620 {
621     struct host_port_stats *pstats = BXE_SP(sc, port_stats);
622     struct bxe_eth_stats *estats = &sc->eth_stats;
623     struct {
624         uint32_t lo;
625         uint32_t hi;
626     } diff;
627 
628     if (CHIP_IS_E1x(sc)) {
629         struct bmac1_stats *new = BXE_SP(sc, mac_stats.bmac1_stats);
630 
631         /* the macros below will use "bmac1_stats" type */
632         UPDATE_STAT64(rx_stat_grerb, rx_stat_ifhcinbadoctets);
633         UPDATE_STAT64(rx_stat_grfcs, rx_stat_dot3statsfcserrors);
634         UPDATE_STAT64(rx_stat_grund, rx_stat_etherstatsundersizepkts);
635         UPDATE_STAT64(rx_stat_grovr, rx_stat_dot3statsframestoolong);
636         UPDATE_STAT64(rx_stat_grfrg, rx_stat_etherstatsfragments);
637         UPDATE_STAT64(rx_stat_grjbr, rx_stat_etherstatsjabbers);
638         UPDATE_STAT64(rx_stat_grxcf, rx_stat_maccontrolframesreceived);
639         UPDATE_STAT64(rx_stat_grxpf, rx_stat_xoffstateentered);
640         UPDATE_STAT64(rx_stat_grxpf, rx_stat_mac_xpf);
641 
642         UPDATE_STAT64(tx_stat_gtxpf, tx_stat_outxoffsent);
643         UPDATE_STAT64(tx_stat_gtxpf, tx_stat_flowcontroldone);
644         UPDATE_STAT64(tx_stat_gt64, tx_stat_etherstatspkts64octets);
645         UPDATE_STAT64(tx_stat_gt127,
646                       tx_stat_etherstatspkts65octetsto127octets);
647         UPDATE_STAT64(tx_stat_gt255,
648                       tx_stat_etherstatspkts128octetsto255octets);
649         UPDATE_STAT64(tx_stat_gt511,
650                       tx_stat_etherstatspkts256octetsto511octets);
651         UPDATE_STAT64(tx_stat_gt1023,
652                       tx_stat_etherstatspkts512octetsto1023octets);
653         UPDATE_STAT64(tx_stat_gt1518,
654                       tx_stat_etherstatspkts1024octetsto1522octets);
655         UPDATE_STAT64(tx_stat_gt2047, tx_stat_mac_2047);
656         UPDATE_STAT64(tx_stat_gt4095, tx_stat_mac_4095);
657         UPDATE_STAT64(tx_stat_gt9216, tx_stat_mac_9216);
658         UPDATE_STAT64(tx_stat_gt16383, tx_stat_mac_16383);
659         UPDATE_STAT64(tx_stat_gterr,
660                       tx_stat_dot3statsinternalmactransmiterrors);
661         UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
662     } else {
663         struct bmac2_stats *new = BXE_SP(sc, mac_stats.bmac2_stats);
664         struct bxe_fw_port_stats_old *fwstats = &sc->fw_stats_old;
665 
666         /* the macros below will use "bmac2_stats" type */
667         UPDATE_STAT64(rx_stat_grerb, rx_stat_ifhcinbadoctets);
668         UPDATE_STAT64(rx_stat_grfcs, rx_stat_dot3statsfcserrors);
669         UPDATE_STAT64(rx_stat_grund, rx_stat_etherstatsundersizepkts);
670         UPDATE_STAT64(rx_stat_grovr, rx_stat_dot3statsframestoolong);
671         UPDATE_STAT64(rx_stat_grfrg, rx_stat_etherstatsfragments);
672         UPDATE_STAT64(rx_stat_grjbr, rx_stat_etherstatsjabbers);
673         UPDATE_STAT64(rx_stat_grxcf, rx_stat_maccontrolframesreceived);
674         UPDATE_STAT64(rx_stat_grxpf, rx_stat_xoffstateentered);
675         UPDATE_STAT64(rx_stat_grxpf, rx_stat_mac_xpf);
676         UPDATE_STAT64(tx_stat_gtxpf, tx_stat_outxoffsent);
677         UPDATE_STAT64(tx_stat_gtxpf, tx_stat_flowcontroldone);
678         UPDATE_STAT64(tx_stat_gt64, tx_stat_etherstatspkts64octets);
679         UPDATE_STAT64(tx_stat_gt127,
680                       tx_stat_etherstatspkts65octetsto127octets);
681         UPDATE_STAT64(tx_stat_gt255,
682                       tx_stat_etherstatspkts128octetsto255octets);
683         UPDATE_STAT64(tx_stat_gt511,
684                       tx_stat_etherstatspkts256octetsto511octets);
685         UPDATE_STAT64(tx_stat_gt1023,
686                       tx_stat_etherstatspkts512octetsto1023octets);
687         UPDATE_STAT64(tx_stat_gt1518,
688                       tx_stat_etherstatspkts1024octetsto1522octets);
689         UPDATE_STAT64(tx_stat_gt2047, tx_stat_mac_2047);
690         UPDATE_STAT64(tx_stat_gt4095, tx_stat_mac_4095);
691         UPDATE_STAT64(tx_stat_gt9216, tx_stat_mac_9216);
692         UPDATE_STAT64(tx_stat_gt16383, tx_stat_mac_16383);
693         UPDATE_STAT64(tx_stat_gterr,
694                       tx_stat_dot3statsinternalmactransmiterrors);
695         UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
696 
697         /* collect PFC stats */
698         pstats->pfc_frames_tx_hi = new->tx_stat_gtpp_hi;
699         pstats->pfc_frames_tx_lo = new->tx_stat_gtpp_lo;
700         ADD_64(pstats->pfc_frames_tx_hi, fwstats->pfc_frames_tx_hi,
701                pstats->pfc_frames_tx_lo, fwstats->pfc_frames_tx_lo);
702 
703         pstats->pfc_frames_rx_hi = new->rx_stat_grpp_hi;
704         pstats->pfc_frames_rx_lo = new->rx_stat_grpp_lo;
705         ADD_64(pstats->pfc_frames_rx_hi, fwstats->pfc_frames_rx_hi,
706                pstats->pfc_frames_rx_lo, fwstats->pfc_frames_rx_lo);
707     }
708 
709     estats->pause_frames_received_hi = pstats->mac_stx[1].rx_stat_mac_xpf_hi;
710     estats->pause_frames_received_lo = pstats->mac_stx[1].rx_stat_mac_xpf_lo;
711 
712     estats->pause_frames_sent_hi = pstats->mac_stx[1].tx_stat_outxoffsent_hi;
713     estats->pause_frames_sent_lo = pstats->mac_stx[1].tx_stat_outxoffsent_lo;
714 
715     estats->pfc_frames_received_hi = pstats->pfc_frames_rx_hi;
716     estats->pfc_frames_received_lo = pstats->pfc_frames_rx_lo;
717     estats->pfc_frames_sent_hi = pstats->pfc_frames_tx_hi;
718     estats->pfc_frames_sent_lo = pstats->pfc_frames_tx_lo;
719 }
720 
721 static void
722 bxe_mstat_stats_update(struct bxe_softc *sc)
723 {
724     struct host_port_stats *pstats = BXE_SP(sc, port_stats);
725     struct bxe_eth_stats *estats = &sc->eth_stats;
726     struct mstat_stats *new = BXE_SP(sc, mac_stats.mstat_stats);
727 
728     ADD_STAT64(stats_rx.rx_grerb, rx_stat_ifhcinbadoctets);
729     ADD_STAT64(stats_rx.rx_grfcs, rx_stat_dot3statsfcserrors);
730     ADD_STAT64(stats_rx.rx_grund, rx_stat_etherstatsundersizepkts);
731     ADD_STAT64(stats_rx.rx_grovr, rx_stat_dot3statsframestoolong);
732     ADD_STAT64(stats_rx.rx_grfrg, rx_stat_etherstatsfragments);
733     ADD_STAT64(stats_rx.rx_grxcf, rx_stat_maccontrolframesreceived);
734     ADD_STAT64(stats_rx.rx_grxpf, rx_stat_xoffstateentered);
735     ADD_STAT64(stats_rx.rx_grxpf, rx_stat_mac_xpf);
736     ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_outxoffsent);
737     ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_flowcontroldone);
738 
739     /* collect pfc stats */
740     ADD_64(pstats->pfc_frames_tx_hi, new->stats_tx.tx_gtxpp_hi,
741            pstats->pfc_frames_tx_lo, new->stats_tx.tx_gtxpp_lo);
742     ADD_64(pstats->pfc_frames_rx_hi, new->stats_rx.rx_grxpp_hi,
743            pstats->pfc_frames_rx_lo, new->stats_rx.rx_grxpp_lo);
744 
745     ADD_STAT64(stats_tx.tx_gt64, tx_stat_etherstatspkts64octets);
746     ADD_STAT64(stats_tx.tx_gt127, tx_stat_etherstatspkts65octetsto127octets);
747     ADD_STAT64(stats_tx.tx_gt255, tx_stat_etherstatspkts128octetsto255octets);
748     ADD_STAT64(stats_tx.tx_gt511, tx_stat_etherstatspkts256octetsto511octets);
749     ADD_STAT64(stats_tx.tx_gt1023,
750                tx_stat_etherstatspkts512octetsto1023octets);
751     ADD_STAT64(stats_tx.tx_gt1518,
752                tx_stat_etherstatspkts1024octetsto1522octets);
753     ADD_STAT64(stats_tx.tx_gt2047, tx_stat_mac_2047);
754 
755     ADD_STAT64(stats_tx.tx_gt4095, tx_stat_mac_4095);
756     ADD_STAT64(stats_tx.tx_gt9216, tx_stat_mac_9216);
757     ADD_STAT64(stats_tx.tx_gt16383, tx_stat_mac_16383);
758 
759     ADD_STAT64(stats_tx.tx_gterr, tx_stat_dot3statsinternalmactransmiterrors);
760     ADD_STAT64(stats_tx.tx_gtufl, tx_stat_mac_ufl);
761 
762     estats->etherstatspkts1024octetsto1522octets_hi =
763         pstats->mac_stx[1].tx_stat_etherstatspkts1024octetsto1522octets_hi;
764     estats->etherstatspkts1024octetsto1522octets_lo =
765         pstats->mac_stx[1].tx_stat_etherstatspkts1024octetsto1522octets_lo;
766 
767     estats->etherstatspktsover1522octets_hi =
768         pstats->mac_stx[1].tx_stat_mac_2047_hi;
769     estats->etherstatspktsover1522octets_lo =
770         pstats->mac_stx[1].tx_stat_mac_2047_lo;
771 
772     ADD_64(estats->etherstatspktsover1522octets_hi,
773            pstats->mac_stx[1].tx_stat_mac_4095_hi,
774            estats->etherstatspktsover1522octets_lo,
775            pstats->mac_stx[1].tx_stat_mac_4095_lo);
776 
777     ADD_64(estats->etherstatspktsover1522octets_hi,
778            pstats->mac_stx[1].tx_stat_mac_9216_hi,
779            estats->etherstatspktsover1522octets_lo,
780            pstats->mac_stx[1].tx_stat_mac_9216_lo);
781 
782     ADD_64(estats->etherstatspktsover1522octets_hi,
783            pstats->mac_stx[1].tx_stat_mac_16383_hi,
784            estats->etherstatspktsover1522octets_lo,
785            pstats->mac_stx[1].tx_stat_mac_16383_lo);
786 
787     estats->pause_frames_received_hi = pstats->mac_stx[1].rx_stat_mac_xpf_hi;
788     estats->pause_frames_received_lo = pstats->mac_stx[1].rx_stat_mac_xpf_lo;
789 
790     estats->pause_frames_sent_hi = pstats->mac_stx[1].tx_stat_outxoffsent_hi;
791     estats->pause_frames_sent_lo = pstats->mac_stx[1].tx_stat_outxoffsent_lo;
792 
793     estats->pfc_frames_received_hi = pstats->pfc_frames_rx_hi;
794     estats->pfc_frames_received_lo = pstats->pfc_frames_rx_lo;
795     estats->pfc_frames_sent_hi = pstats->pfc_frames_tx_hi;
796     estats->pfc_frames_sent_lo = pstats->pfc_frames_tx_lo;
797 }
798 
799 static void
800 bxe_emac_stats_update(struct bxe_softc *sc)
801 {
802     struct emac_stats *new = BXE_SP(sc, mac_stats.emac_stats);
803     struct host_port_stats *pstats = BXE_SP(sc, port_stats);
804     struct bxe_eth_stats *estats = &sc->eth_stats;
805 
806     UPDATE_EXTEND_STAT(rx_stat_ifhcinbadoctets);
807     UPDATE_EXTEND_STAT(tx_stat_ifhcoutbadoctets);
808     UPDATE_EXTEND_STAT(rx_stat_dot3statsfcserrors);
809     UPDATE_EXTEND_STAT(rx_stat_dot3statsalignmenterrors);
810     UPDATE_EXTEND_STAT(rx_stat_dot3statscarriersenseerrors);
811     UPDATE_EXTEND_STAT(rx_stat_falsecarriererrors);
812     UPDATE_EXTEND_STAT(rx_stat_etherstatsundersizepkts);
813     UPDATE_EXTEND_STAT(rx_stat_dot3statsframestoolong);
814     UPDATE_EXTEND_STAT(rx_stat_etherstatsfragments);
815     UPDATE_EXTEND_STAT(rx_stat_etherstatsjabbers);
816     UPDATE_EXTEND_STAT(rx_stat_maccontrolframesreceived);
817     UPDATE_EXTEND_STAT(rx_stat_xoffstateentered);
818     UPDATE_EXTEND_STAT(rx_stat_xonpauseframesreceived);
819     UPDATE_EXTEND_STAT(rx_stat_xoffpauseframesreceived);
820     UPDATE_EXTEND_STAT(tx_stat_outxonsent);
821     UPDATE_EXTEND_STAT(tx_stat_outxoffsent);
822     UPDATE_EXTEND_STAT(tx_stat_flowcontroldone);
823     UPDATE_EXTEND_STAT(tx_stat_etherstatscollisions);
824     UPDATE_EXTEND_STAT(tx_stat_dot3statssinglecollisionframes);
825     UPDATE_EXTEND_STAT(tx_stat_dot3statsmultiplecollisionframes);
826     UPDATE_EXTEND_STAT(tx_stat_dot3statsdeferredtransmissions);
827     UPDATE_EXTEND_STAT(tx_stat_dot3statsexcessivecollisions);
828     UPDATE_EXTEND_STAT(tx_stat_dot3statslatecollisions);
829     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts64octets);
830     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts65octetsto127octets);
831     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts128octetsto255octets);
832     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts256octetsto511octets);
833     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts512octetsto1023octets);
834     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts1024octetsto1522octets);
835     UPDATE_EXTEND_STAT(tx_stat_etherstatspktsover1522octets);
836     UPDATE_EXTEND_STAT(tx_stat_dot3statsinternalmactransmiterrors);
837 
838     estats->pause_frames_received_hi =
839         pstats->mac_stx[1].rx_stat_xonpauseframesreceived_hi;
840     estats->pause_frames_received_lo =
841         pstats->mac_stx[1].rx_stat_xonpauseframesreceived_lo;
842     ADD_64(estats->pause_frames_received_hi,
843            pstats->mac_stx[1].rx_stat_xoffpauseframesreceived_hi,
844            estats->pause_frames_received_lo,
845            pstats->mac_stx[1].rx_stat_xoffpauseframesreceived_lo);
846 
847     estats->pause_frames_sent_hi =
848         pstats->mac_stx[1].tx_stat_outxonsent_hi;
849     estats->pause_frames_sent_lo =
850         pstats->mac_stx[1].tx_stat_outxonsent_lo;
851     ADD_64(estats->pause_frames_sent_hi,
852            pstats->mac_stx[1].tx_stat_outxoffsent_hi,
853            estats->pause_frames_sent_lo,
854            pstats->mac_stx[1].tx_stat_outxoffsent_lo);
855 }
856 
857 static int
858 bxe_hw_stats_update(struct bxe_softc *sc)
859 {
860     struct nig_stats *new = BXE_SP(sc, nig_stats);
861     struct nig_stats *old = &(sc->port.old_nig_stats);
862     struct host_port_stats *pstats = BXE_SP(sc, port_stats);
863     struct bxe_eth_stats *estats = &sc->eth_stats;
864     uint32_t lpi_reg, nig_timer_max;
865     struct {
866         uint32_t lo;
867         uint32_t hi;
868     } diff;
869 
870     switch (sc->link_vars.mac_type) {
871     case ELINK_MAC_TYPE_BMAC:
872         bxe_bmac_stats_update(sc);
873         break;
874 
875     case ELINK_MAC_TYPE_EMAC:
876         bxe_emac_stats_update(sc);
877         break;
878 
879     case ELINK_MAC_TYPE_UMAC:
880     case ELINK_MAC_TYPE_XMAC:
881         bxe_mstat_stats_update(sc);
882         break;
883 
884     case ELINK_MAC_TYPE_NONE: /* unreached */
885         BLOGD(sc, DBG_STATS,
886               "stats updated by DMAE but no MAC active\n");
887         return (-1);
888 
889     default: /* unreached */
890         BLOGE(sc, "stats update failed, unknown MAC type\n");
891     }
892 
893     ADD_EXTEND_64(pstats->brb_drop_hi, pstats->brb_drop_lo,
894                   new->brb_discard - old->brb_discard);
895     ADD_EXTEND_64(estats->brb_truncate_hi, estats->brb_truncate_lo,
896                   new->brb_truncate - old->brb_truncate);
897 
898     if (!CHIP_IS_E3(sc)) {
899         UPDATE_STAT64_NIG(egress_mac_pkt0,
900                           etherstatspkts1024octetsto1522octets);
901         UPDATE_STAT64_NIG(egress_mac_pkt1,
902                           etherstatspktsover1522octets);
903     }
904 
905     memcpy(old, new, sizeof(struct nig_stats));
906 
907     memcpy(&(estats->rx_stat_ifhcinbadoctets_hi), &(pstats->mac_stx[1]),
908            sizeof(struct mac_stx));
909     estats->brb_drop_hi = pstats->brb_drop_hi;
910     estats->brb_drop_lo = pstats->brb_drop_lo;
911 
912     pstats->host_port_stats_counter++;
913 
914     if (CHIP_IS_E3(sc)) {
915         lpi_reg = (SC_PORT(sc)) ?
916                       MISC_REG_CPMU_LP_SM_ENT_CNT_P1 :
917                       MISC_REG_CPMU_LP_SM_ENT_CNT_P0;
918         estats->eee_tx_lpi += REG_RD(sc, lpi_reg);
919     }
920 
921     if (!BXE_NOMCP(sc)) {
922         nig_timer_max = SHMEM_RD(sc, port_mb[SC_PORT(sc)].stat_nig_timer);
923         if (nig_timer_max != estats->nig_timer_max) {
924             estats->nig_timer_max = nig_timer_max;
925 	    /*NOTE: not setting error bit */
926             BLOGE(sc, "invalid NIG timer max (%u)\n",
927                   estats->nig_timer_max);
928         }
929     }
930 
931     return (0);
932 }
933 
934 static int
935 bxe_storm_stats_validate_counters(struct bxe_softc *sc)
936 {
937     struct stats_counter *counters = &sc->fw_stats_data->storm_counters;
938     uint16_t cur_stats_counter;
939 
940     /*
941      * Make sure we use the value of the counter
942      * used for sending the last stats ramrod.
943      */
944     BXE_STATS_LOCK(sc);
945     cur_stats_counter = (sc->stats_counter - 1);
946     BXE_STATS_UNLOCK(sc);
947 
948     /* are storm stats valid? */
949     if (le16toh(counters->xstats_counter) != cur_stats_counter) {
950         BLOGD(sc, DBG_STATS,
951               "stats not updated by xstorm, "
952               "counter 0x%x != stats_counter 0x%x\n",
953               le16toh(counters->xstats_counter), sc->stats_counter);
954         return (-EAGAIN);
955     }
956 
957     if (le16toh(counters->ustats_counter) != cur_stats_counter) {
958         BLOGD(sc, DBG_STATS,
959               "stats not updated by ustorm, "
960               "counter 0x%x != stats_counter 0x%x\n",
961               le16toh(counters->ustats_counter), sc->stats_counter);
962         return (-EAGAIN);
963     }
964 
965     if (le16toh(counters->cstats_counter) != cur_stats_counter) {
966         BLOGD(sc, DBG_STATS,
967               "stats not updated by cstorm, "
968               "counter 0x%x != stats_counter 0x%x\n",
969               le16toh(counters->cstats_counter), sc->stats_counter);
970         return (-EAGAIN);
971     }
972 
973     if (le16toh(counters->tstats_counter) != cur_stats_counter) {
974         BLOGD(sc, DBG_STATS,
975               "stats not updated by tstorm, "
976               "counter 0x%x != stats_counter 0x%x\n",
977               le16toh(counters->tstats_counter), sc->stats_counter);
978         return (-EAGAIN);
979     }
980 
981     return (0);
982 }
983 
984 static int
985 bxe_storm_stats_update(struct bxe_softc *sc)
986 {
987     struct tstorm_per_port_stats *tport =
988         &sc->fw_stats_data->port.tstorm_port_statistics;
989     struct tstorm_per_pf_stats *tfunc =
990         &sc->fw_stats_data->pf.tstorm_pf_statistics;
991     struct host_func_stats *fstats = &sc->func_stats;
992     struct bxe_eth_stats *estats = &sc->eth_stats;
993     struct bxe_eth_stats_old *estats_old = &sc->eth_stats_old;
994     int i;
995 
996     /* vfs stat counter is managed by pf */
997     if (IS_PF(sc) && bxe_storm_stats_validate_counters(sc)) {
998         return (-EAGAIN);
999     }
1000 
1001     estats->error_bytes_received_hi = 0;
1002     estats->error_bytes_received_lo = 0;
1003 
1004     for (i = 0; i < sc->num_queues; i++) {
1005         struct bxe_fastpath *fp = &sc->fp[i];
1006         struct tstorm_per_queue_stats *tclient =
1007             &sc->fw_stats_data->queue_stats[i].tstorm_queue_statistics;
1008         struct tstorm_per_queue_stats *old_tclient = &fp->old_tclient;
1009         struct ustorm_per_queue_stats *uclient =
1010             &sc->fw_stats_data->queue_stats[i].ustorm_queue_statistics;
1011         struct ustorm_per_queue_stats *old_uclient = &fp->old_uclient;
1012         struct xstorm_per_queue_stats *xclient =
1013             &sc->fw_stats_data->queue_stats[i].xstorm_queue_statistics;
1014         struct xstorm_per_queue_stats *old_xclient = &fp->old_xclient;
1015         struct bxe_eth_q_stats *qstats = &fp->eth_q_stats;
1016         struct bxe_eth_q_stats_old *qstats_old = &fp->eth_q_stats_old;
1017 
1018         uint32_t diff;
1019 
1020         BLOGD(sc, DBG_STATS,
1021               "queue[%d]: ucast_sent 0x%x bcast_sent 0x%x mcast_sent 0x%x\n",
1022               i, xclient->ucast_pkts_sent, xclient->bcast_pkts_sent,
1023               xclient->mcast_pkts_sent);
1024 
1025         BLOGD(sc, DBG_STATS, "---------------\n");
1026 
1027         UPDATE_QSTAT(tclient->rcv_bcast_bytes,
1028                      total_broadcast_bytes_received);
1029         UPDATE_QSTAT(tclient->rcv_mcast_bytes,
1030                      total_multicast_bytes_received);
1031         UPDATE_QSTAT(tclient->rcv_ucast_bytes,
1032                      total_unicast_bytes_received);
1033 
1034         /*
1035          * sum to total_bytes_received all
1036          * unicast/multicast/broadcast
1037          */
1038         qstats->total_bytes_received_hi =
1039             qstats->total_broadcast_bytes_received_hi;
1040         qstats->total_bytes_received_lo =
1041             qstats->total_broadcast_bytes_received_lo;
1042 
1043         ADD_64(qstats->total_bytes_received_hi,
1044                qstats->total_multicast_bytes_received_hi,
1045                qstats->total_bytes_received_lo,
1046                qstats->total_multicast_bytes_received_lo);
1047 
1048         ADD_64(qstats->total_bytes_received_hi,
1049                qstats->total_unicast_bytes_received_hi,
1050                qstats->total_bytes_received_lo,
1051                qstats->total_unicast_bytes_received_lo);
1052 
1053         qstats->valid_bytes_received_hi = qstats->total_bytes_received_hi;
1054         qstats->valid_bytes_received_lo = qstats->total_bytes_received_lo;
1055 
1056         UPDATE_EXTEND_TSTAT(rcv_ucast_pkts, total_unicast_packets_received);
1057         UPDATE_EXTEND_TSTAT(rcv_mcast_pkts, total_multicast_packets_received);
1058         UPDATE_EXTEND_TSTAT(rcv_bcast_pkts, total_broadcast_packets_received);
1059         UPDATE_EXTEND_E_TSTAT(pkts_too_big_discard,
1060                               etherstatsoverrsizepkts, 32);
1061         UPDATE_EXTEND_E_TSTAT(no_buff_discard, no_buff_discard, 16);
1062 
1063         SUB_EXTEND_USTAT(ucast_no_buff_pkts, total_unicast_packets_received);
1064         SUB_EXTEND_USTAT(mcast_no_buff_pkts,
1065                          total_multicast_packets_received);
1066         SUB_EXTEND_USTAT(bcast_no_buff_pkts,
1067                          total_broadcast_packets_received);
1068         UPDATE_EXTEND_E_USTAT(ucast_no_buff_pkts, no_buff_discard);
1069         UPDATE_EXTEND_E_USTAT(mcast_no_buff_pkts, no_buff_discard);
1070         UPDATE_EXTEND_E_USTAT(bcast_no_buff_pkts, no_buff_discard);
1071 
1072         UPDATE_QSTAT(xclient->bcast_bytes_sent,
1073                      total_broadcast_bytes_transmitted);
1074         UPDATE_QSTAT(xclient->mcast_bytes_sent,
1075                      total_multicast_bytes_transmitted);
1076         UPDATE_QSTAT(xclient->ucast_bytes_sent,
1077                      total_unicast_bytes_transmitted);
1078 
1079         /*
1080          * sum to total_bytes_transmitted all
1081          * unicast/multicast/broadcast
1082          */
1083         qstats->total_bytes_transmitted_hi =
1084             qstats->total_unicast_bytes_transmitted_hi;
1085         qstats->total_bytes_transmitted_lo =
1086             qstats->total_unicast_bytes_transmitted_lo;
1087 
1088         ADD_64(qstats->total_bytes_transmitted_hi,
1089                qstats->total_broadcast_bytes_transmitted_hi,
1090                qstats->total_bytes_transmitted_lo,
1091                qstats->total_broadcast_bytes_transmitted_lo);
1092 
1093         ADD_64(qstats->total_bytes_transmitted_hi,
1094                qstats->total_multicast_bytes_transmitted_hi,
1095                qstats->total_bytes_transmitted_lo,
1096                qstats->total_multicast_bytes_transmitted_lo);
1097 
1098         UPDATE_EXTEND_XSTAT(ucast_pkts_sent,
1099                             total_unicast_packets_transmitted);
1100         UPDATE_EXTEND_XSTAT(mcast_pkts_sent,
1101                             total_multicast_packets_transmitted);
1102         UPDATE_EXTEND_XSTAT(bcast_pkts_sent,
1103                             total_broadcast_packets_transmitted);
1104 
1105         UPDATE_EXTEND_TSTAT(checksum_discard,
1106                             total_packets_received_checksum_discarded);
1107         UPDATE_EXTEND_TSTAT(ttl0_discard,
1108                             total_packets_received_ttl0_discarded);
1109 
1110         UPDATE_EXTEND_XSTAT(error_drop_pkts,
1111                             total_transmitted_dropped_packets_error);
1112 
1113         /* TPA aggregations completed */
1114         UPDATE_EXTEND_E_USTAT(coalesced_events, total_tpa_aggregations);
1115         /* Number of network frames aggregated by TPA */
1116         UPDATE_EXTEND_E_USTAT(coalesced_pkts, total_tpa_aggregated_frames);
1117         /* Total number of bytes in completed TPA aggregations */
1118         UPDATE_QSTAT(uclient->coalesced_bytes, total_tpa_bytes);
1119 
1120         UPDATE_ESTAT_QSTAT_64(total_tpa_bytes);
1121 
1122         UPDATE_FSTAT_QSTAT(total_bytes_received);
1123         UPDATE_FSTAT_QSTAT(total_bytes_transmitted);
1124         UPDATE_FSTAT_QSTAT(total_unicast_packets_received);
1125         UPDATE_FSTAT_QSTAT(total_multicast_packets_received);
1126         UPDATE_FSTAT_QSTAT(total_broadcast_packets_received);
1127         UPDATE_FSTAT_QSTAT(total_unicast_packets_transmitted);
1128         UPDATE_FSTAT_QSTAT(total_multicast_packets_transmitted);
1129         UPDATE_FSTAT_QSTAT(total_broadcast_packets_transmitted);
1130         UPDATE_FSTAT_QSTAT(valid_bytes_received);
1131     }
1132 
1133     ADD_64(estats->total_bytes_received_hi,
1134            estats->rx_stat_ifhcinbadoctets_hi,
1135            estats->total_bytes_received_lo,
1136            estats->rx_stat_ifhcinbadoctets_lo);
1137 
1138     ADD_64_LE(estats->total_bytes_received_hi,
1139               tfunc->rcv_error_bytes.hi,
1140               estats->total_bytes_received_lo,
1141               tfunc->rcv_error_bytes.lo);
1142 
1143     ADD_64_LE(estats->error_bytes_received_hi,
1144               tfunc->rcv_error_bytes.hi,
1145               estats->error_bytes_received_lo,
1146               tfunc->rcv_error_bytes.lo);
1147 
1148     UPDATE_ESTAT(etherstatsoverrsizepkts, rx_stat_dot3statsframestoolong);
1149 
1150     ADD_64(estats->error_bytes_received_hi,
1151            estats->rx_stat_ifhcinbadoctets_hi,
1152            estats->error_bytes_received_lo,
1153            estats->rx_stat_ifhcinbadoctets_lo);
1154 
1155     if (sc->port.pmf) {
1156         struct bxe_fw_port_stats_old *fwstats = &sc->fw_stats_old;
1157         UPDATE_FW_STAT(mac_filter_discard);
1158         UPDATE_FW_STAT(mf_tag_discard);
1159         UPDATE_FW_STAT(brb_truncate_discard);
1160         UPDATE_FW_STAT(mac_discard);
1161     }
1162 
1163     fstats->host_func_stats_start = ++fstats->host_func_stats_end;
1164 
1165     sc->stats_pending = 0;
1166 
1167     return (0);
1168 }
1169 
1170 static void
1171 bxe_net_stats_update(struct bxe_softc *sc)
1172 {
1173 
1174     for (int i = 0; i < sc->num_queues; i++)
1175         if_inc_counter(sc->ifp, IFCOUNTER_IQDROPS,
1176 	    le32toh(sc->fp[i].old_tclient.checksum_discard));
1177 }
1178 
1179 uint64_t
1180 bxe_get_counter(if_t ifp, ift_counter cnt)
1181 {
1182 	struct bxe_softc *sc;
1183 	struct bxe_eth_stats *estats;
1184 
1185 	sc = if_getsoftc(ifp);
1186 	estats = &sc->eth_stats;
1187 
1188 	switch (cnt) {
1189 	case IFCOUNTER_IPACKETS:
1190 		return (bxe_hilo(&estats->total_unicast_packets_received_hi) +
1191 		    bxe_hilo(&estats->total_multicast_packets_received_hi) +
1192 		    bxe_hilo(&estats->total_broadcast_packets_received_hi));
1193 	case IFCOUNTER_OPACKETS:
1194 		return (bxe_hilo(&estats->total_unicast_packets_transmitted_hi) +
1195 		    bxe_hilo(&estats->total_multicast_packets_transmitted_hi) +
1196 		    bxe_hilo(&estats->total_broadcast_packets_transmitted_hi));
1197 	case IFCOUNTER_IBYTES:
1198 		return (bxe_hilo(&estats->total_bytes_received_hi));
1199 	case IFCOUNTER_OBYTES:
1200 		return (bxe_hilo(&estats->total_bytes_transmitted_hi));
1201 	case IFCOUNTER_IERRORS:
1202 		return (bxe_hilo(&estats->rx_stat_etherstatsundersizepkts_hi) +
1203 		    bxe_hilo(&estats->etherstatsoverrsizepkts_hi) +
1204 		    bxe_hilo(&estats->brb_drop_hi) +
1205 		    bxe_hilo(&estats->brb_truncate_hi) +
1206 		    bxe_hilo(&estats->rx_stat_dot3statsfcserrors_hi) +
1207 		    bxe_hilo(&estats->rx_stat_dot3statsalignmenterrors_hi) +
1208 		    bxe_hilo(&estats->no_buff_discard_hi));
1209 	case IFCOUNTER_OERRORS:
1210 		return (bxe_hilo(&estats->rx_stat_dot3statscarriersenseerrors_hi) +
1211 		    bxe_hilo(&estats->tx_stat_dot3statsinternalmactransmiterrors_hi));
1212 	case IFCOUNTER_IMCASTS:
1213 		return (bxe_hilo(&estats->total_multicast_packets_received_hi));
1214 	case IFCOUNTER_COLLISIONS:
1215 		return (bxe_hilo(&estats->tx_stat_etherstatscollisions_hi) +
1216 		    bxe_hilo(&estats->tx_stat_dot3statslatecollisions_hi) +
1217 		    bxe_hilo(&estats->tx_stat_dot3statsexcessivecollisions_hi));
1218 	default:
1219 		return (if_get_counter_default(ifp, cnt));
1220 	}
1221 }
1222 
1223 static void
1224 bxe_drv_stats_update(struct bxe_softc *sc)
1225 {
1226     struct bxe_eth_stats *estats = &sc->eth_stats;
1227     int i;
1228 
1229     for (i = 0; i < sc->num_queues; i++) {
1230         struct bxe_eth_q_stats *qstats = &sc->fp[i].eth_q_stats;
1231         struct bxe_eth_q_stats_old *qstats_old = &sc->fp[i].eth_q_stats_old;
1232 
1233         UPDATE_ESTAT_QSTAT(rx_calls);
1234         UPDATE_ESTAT_QSTAT(rx_pkts);
1235         UPDATE_ESTAT_QSTAT(rx_tpa_pkts);
1236         UPDATE_ESTAT_QSTAT(rx_erroneous_jumbo_sge_pkts);
1237         UPDATE_ESTAT_QSTAT(rx_bxe_service_rxsgl);
1238         UPDATE_ESTAT_QSTAT(rx_jumbo_sge_pkts);
1239         UPDATE_ESTAT_QSTAT(rx_soft_errors);
1240         UPDATE_ESTAT_QSTAT(rx_hw_csum_errors);
1241         UPDATE_ESTAT_QSTAT(rx_ofld_frames_csum_ip);
1242         UPDATE_ESTAT_QSTAT(rx_ofld_frames_csum_tcp_udp);
1243         UPDATE_ESTAT_QSTAT(rx_budget_reached);
1244         UPDATE_ESTAT_QSTAT(tx_pkts);
1245         UPDATE_ESTAT_QSTAT(tx_soft_errors);
1246         UPDATE_ESTAT_QSTAT(tx_ofld_frames_csum_ip);
1247         UPDATE_ESTAT_QSTAT(tx_ofld_frames_csum_tcp);
1248         UPDATE_ESTAT_QSTAT(tx_ofld_frames_csum_udp);
1249         UPDATE_ESTAT_QSTAT(tx_ofld_frames_lso);
1250         UPDATE_ESTAT_QSTAT(tx_ofld_frames_lso_hdr_splits);
1251         UPDATE_ESTAT_QSTAT(tx_encap_failures);
1252         UPDATE_ESTAT_QSTAT(tx_hw_queue_full);
1253         UPDATE_ESTAT_QSTAT(tx_hw_max_queue_depth);
1254         UPDATE_ESTAT_QSTAT(tx_dma_mapping_failure);
1255         UPDATE_ESTAT_QSTAT(tx_max_drbr_queue_depth);
1256         UPDATE_ESTAT_QSTAT(tx_window_violation_std);
1257         UPDATE_ESTAT_QSTAT(tx_window_violation_tso);
1258         //UPDATE_ESTAT_QSTAT(tx_unsupported_tso_request_ipv6);
1259         //UPDATE_ESTAT_QSTAT(tx_unsupported_tso_request_not_tcp);
1260         UPDATE_ESTAT_QSTAT(tx_chain_lost_mbuf);
1261         UPDATE_ESTAT_QSTAT(tx_frames_deferred);
1262         UPDATE_ESTAT_QSTAT(tx_queue_xoff);
1263 
1264         /* mbuf driver statistics */
1265         UPDATE_ESTAT_QSTAT(mbuf_defrag_attempts);
1266         UPDATE_ESTAT_QSTAT(mbuf_defrag_failures);
1267         UPDATE_ESTAT_QSTAT(mbuf_rx_bd_alloc_failed);
1268         UPDATE_ESTAT_QSTAT(mbuf_rx_bd_mapping_failed);
1269         UPDATE_ESTAT_QSTAT(mbuf_rx_tpa_alloc_failed);
1270         UPDATE_ESTAT_QSTAT(mbuf_rx_tpa_mapping_failed);
1271         UPDATE_ESTAT_QSTAT(mbuf_rx_sge_alloc_failed);
1272         UPDATE_ESTAT_QSTAT(mbuf_rx_sge_mapping_failed);
1273 
1274         /* track the number of allocated mbufs */
1275         UPDATE_ESTAT_QSTAT(mbuf_alloc_tx);
1276         UPDATE_ESTAT_QSTAT(mbuf_alloc_rx);
1277         UPDATE_ESTAT_QSTAT(mbuf_alloc_sge);
1278         UPDATE_ESTAT_QSTAT(mbuf_alloc_tpa);
1279     }
1280 }
1281 
1282 static uint8_t
1283 bxe_edebug_stats_stopped(struct bxe_softc *sc)
1284 {
1285     uint32_t val;
1286 
1287     if (SHMEM2_HAS(sc, edebug_driver_if[1])) {
1288         val = SHMEM2_RD(sc, edebug_driver_if[1]);
1289 
1290         if (val == EDEBUG_DRIVER_IF_OP_CODE_DISABLE_STAT) {
1291             return (TRUE);
1292         }
1293     }
1294 
1295     return (FALSE);
1296 }
1297 
1298 static void
1299 bxe_stats_update(struct bxe_softc *sc)
1300 {
1301     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
1302 
1303     if (bxe_edebug_stats_stopped(sc)) {
1304         return;
1305     }
1306 
1307     if (IS_PF(sc)) {
1308         if (*stats_comp != DMAE_COMP_VAL) {
1309             return;
1310         }
1311 
1312         if (sc->port.pmf) {
1313             bxe_hw_stats_update(sc);
1314         }
1315 
1316         if (bxe_storm_stats_update(sc)) {
1317             if (sc->stats_pending++ == 3) {
1318 		if (if_getdrvflags(sc->ifp) & IFF_DRV_RUNNING) {
1319 		    BLOGE(sc, "Storm stats not updated for 3 times, resetting\n");
1320 		    BXE_SET_ERROR_BIT(sc, BXE_ERR_STATS_TO);
1321 		    taskqueue_enqueue_timeout(taskqueue_thread,
1322                             &sc->sp_err_timeout_task, hz/10);
1323 		}
1324             }
1325             return;
1326         }
1327     } else {
1328         /*
1329          * VF doesn't collect HW statistics, and doesn't get completions,
1330          * performs only update.
1331          */
1332         bxe_storm_stats_update(sc);
1333     }
1334 
1335     bxe_net_stats_update(sc);
1336     bxe_drv_stats_update(sc);
1337 
1338     /* vf is done */
1339     if (IS_VF(sc)) {
1340         return;
1341     }
1342 
1343     bxe_hw_stats_post(sc);
1344     bxe_storm_stats_post(sc);
1345 }
1346 
1347 static void
1348 bxe_port_stats_stop(struct bxe_softc *sc)
1349 {
1350     struct dmae_cmd *dmae;
1351     uint32_t opcode;
1352     int loader_idx = PMF_DMAE_C(sc);
1353     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
1354 
1355     sc->executer_idx = 0;
1356 
1357     opcode = bxe_dmae_opcode(sc, DMAE_SRC_PCI, DMAE_DST_GRC, FALSE, 0);
1358 
1359     if (sc->port.port_stx) {
1360         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
1361 
1362         if (sc->func_stx) {
1363             dmae->opcode = bxe_dmae_opcode_add_comp(opcode, DMAE_COMP_GRC);
1364         } else {
1365             dmae->opcode = bxe_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
1366         }
1367 
1368         dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, port_stats));
1369         dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, port_stats));
1370         dmae->dst_addr_lo = sc->port.port_stx >> 2;
1371         dmae->dst_addr_hi = 0;
1372         dmae->len = bxe_get_port_stats_dma_len(sc);
1373         if (sc->func_stx) {
1374             dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
1375             dmae->comp_addr_hi = 0;
1376             dmae->comp_val = 1;
1377         } else {
1378             dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
1379             dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
1380             dmae->comp_val = DMAE_COMP_VAL;
1381 
1382             *stats_comp = 0;
1383         }
1384     }
1385 
1386     if (sc->func_stx) {
1387         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
1388         dmae->opcode = bxe_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
1389         dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, func_stats));
1390         dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, func_stats));
1391         dmae->dst_addr_lo = (sc->func_stx >> 2);
1392         dmae->dst_addr_hi = 0;
1393         dmae->len = (sizeof(struct host_func_stats) >> 2);
1394         dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
1395         dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
1396         dmae->comp_val = DMAE_COMP_VAL;
1397 
1398         *stats_comp = 0;
1399     }
1400 }
1401 
1402 static void
1403 bxe_stats_stop(struct bxe_softc *sc)
1404 {
1405     uint8_t update = FALSE;
1406 
1407     bxe_stats_comp(sc);
1408 
1409     if (sc->port.pmf) {
1410         update = bxe_hw_stats_update(sc) == 0;
1411     }
1412 
1413     update |= bxe_storm_stats_update(sc) == 0;
1414 
1415     if (update) {
1416         bxe_net_stats_update(sc);
1417 
1418         if (sc->port.pmf) {
1419             bxe_port_stats_stop(sc);
1420         }
1421 
1422         bxe_hw_stats_post(sc);
1423         bxe_stats_comp(sc);
1424     }
1425 }
1426 
1427 static void
1428 bxe_stats_do_nothing(struct bxe_softc *sc)
1429 {
1430     return;
1431 }
1432 
1433 static const struct {
1434     void (*action)(struct bxe_softc *sc);
1435     enum bxe_stats_state next_state;
1436 } bxe_stats_stm[STATS_STATE_MAX][STATS_EVENT_MAX] = {
1437     {
1438     /* DISABLED PMF */ { bxe_stats_pmf_update, STATS_STATE_DISABLED },
1439     /*      LINK_UP */ { bxe_stats_start,      STATS_STATE_ENABLED },
1440     /*      UPDATE  */ { bxe_stats_do_nothing, STATS_STATE_DISABLED },
1441     /*      STOP    */ { bxe_stats_do_nothing, STATS_STATE_DISABLED }
1442     },
1443     {
1444     /* ENABLED  PMF */ { bxe_stats_pmf_start,  STATS_STATE_ENABLED },
1445     /*      LINK_UP */ { bxe_stats_restart,    STATS_STATE_ENABLED },
1446     /*      UPDATE  */ { bxe_stats_update,     STATS_STATE_ENABLED },
1447     /*      STOP    */ { bxe_stats_stop,       STATS_STATE_DISABLED }
1448     }
1449 };
1450 
1451 void bxe_stats_handle(struct bxe_softc     *sc,
1452                       enum bxe_stats_event event)
1453 {
1454     enum bxe_stats_state state;
1455 
1456     if (__predict_false(sc->panic)) {
1457         return;
1458     }
1459 
1460     BXE_STATS_LOCK(sc);
1461     state = sc->stats_state;
1462     sc->stats_state = bxe_stats_stm[state][event].next_state;
1463     BXE_STATS_UNLOCK(sc);
1464 
1465     bxe_stats_stm[state][event].action(sc);
1466 
1467     if (event != STATS_EVENT_UPDATE) {
1468         BLOGD(sc, DBG_STATS,
1469               "state %d -> event %d -> state %d\n",
1470               state, event, sc->stats_state);
1471     }
1472 }
1473 
1474 static void
1475 bxe_port_stats_base_init(struct bxe_softc *sc)
1476 {
1477     struct dmae_cmd *dmae;
1478     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
1479 
1480     /* sanity */
1481     if (!sc->port.pmf || !sc->port.port_stx) {
1482         BLOGE(sc, "BUG!\n");
1483         return;
1484     }
1485 
1486     sc->executer_idx = 0;
1487 
1488     dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
1489     dmae->opcode = bxe_dmae_opcode(sc, DMAE_SRC_PCI, DMAE_DST_GRC,
1490                                    TRUE, DMAE_COMP_PCI);
1491     dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, port_stats));
1492     dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, port_stats));
1493     dmae->dst_addr_lo = (sc->port.port_stx >> 2);
1494     dmae->dst_addr_hi = 0;
1495     dmae->len = bxe_get_port_stats_dma_len(sc);
1496     dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
1497     dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
1498     dmae->comp_val = DMAE_COMP_VAL;
1499 
1500     *stats_comp = 0;
1501     bxe_hw_stats_post(sc);
1502     bxe_stats_comp(sc);
1503 }
1504 
1505 /*
1506  * This function will prepare the statistics ramrod data the way
1507  * we will only have to increment the statistics counter and
1508  * send the ramrod each time we have to.
1509  */
1510 static void
1511 bxe_prep_fw_stats_req(struct bxe_softc *sc)
1512 {
1513     int i;
1514     int first_queue_query_index;
1515     struct stats_query_header *stats_hdr = &sc->fw_stats_req->hdr;
1516     bus_addr_t cur_data_offset;
1517     struct stats_query_entry *cur_query_entry;
1518 
1519     stats_hdr->cmd_num = sc->fw_stats_num;
1520     stats_hdr->drv_stats_counter = 0;
1521 
1522     /*
1523      * The storm_counters struct contains the counters of completed
1524      * statistics requests per storm which are incremented by FW
1525      * each time it completes hadning a statistics ramrod. We will
1526      * check these counters in the timer handler and discard a
1527      * (statistics) ramrod completion.
1528      */
1529     cur_data_offset = (sc->fw_stats_data_mapping +
1530                        offsetof(struct bxe_fw_stats_data, storm_counters));
1531 
1532     stats_hdr->stats_counters_addrs.hi = htole32(U64_HI(cur_data_offset));
1533     stats_hdr->stats_counters_addrs.lo = htole32(U64_LO(cur_data_offset));
1534 
1535     /*
1536      * Prepare the first stats ramrod (will be completed with
1537      * the counters equal to zero) - init counters to somethig different.
1538      */
1539     memset(&sc->fw_stats_data->storm_counters, 0xff,
1540            sizeof(struct stats_counter));
1541 
1542     /**** Port FW statistics data ****/
1543     cur_data_offset = (sc->fw_stats_data_mapping +
1544                        offsetof(struct bxe_fw_stats_data, port));
1545 
1546     cur_query_entry = &sc->fw_stats_req->query[BXE_PORT_QUERY_IDX];
1547 
1548     cur_query_entry->kind = STATS_TYPE_PORT;
1549     /* For port query index is a DONT CARE */
1550     cur_query_entry->index = SC_PORT(sc);
1551     /* For port query funcID is a DONT CARE */
1552     cur_query_entry->funcID = htole16(SC_FUNC(sc));
1553     cur_query_entry->address.hi = htole32(U64_HI(cur_data_offset));
1554     cur_query_entry->address.lo = htole32(U64_LO(cur_data_offset));
1555 
1556     /**** PF FW statistics data ****/
1557     cur_data_offset = (sc->fw_stats_data_mapping +
1558                        offsetof(struct bxe_fw_stats_data, pf));
1559 
1560     cur_query_entry = &sc->fw_stats_req->query[BXE_PF_QUERY_IDX];
1561 
1562     cur_query_entry->kind = STATS_TYPE_PF;
1563     /* For PF query index is a DONT CARE */
1564     cur_query_entry->index = SC_PORT(sc);
1565     cur_query_entry->funcID = htole16(SC_FUNC(sc));
1566     cur_query_entry->address.hi = htole32(U64_HI(cur_data_offset));
1567     cur_query_entry->address.lo = htole32(U64_LO(cur_data_offset));
1568 
1569     /**** Clients' queries ****/
1570     cur_data_offset = (sc->fw_stats_data_mapping +
1571                        offsetof(struct bxe_fw_stats_data, queue_stats));
1572 
1573     /*
1574      * First queue query index depends whether FCoE offloaded request will
1575      * be included in the ramrod
1576      */
1577     first_queue_query_index = (BXE_FIRST_QUEUE_QUERY_IDX - 1);
1578 
1579     for (i = 0; i < sc->num_queues; i++) {
1580         cur_query_entry =
1581             &sc->fw_stats_req->query[first_queue_query_index + i];
1582 
1583         cur_query_entry->kind = STATS_TYPE_QUEUE;
1584         cur_query_entry->index = bxe_stats_id(&sc->fp[i]);
1585         cur_query_entry->funcID = htole16(SC_FUNC(sc));
1586         cur_query_entry->address.hi = htole32(U64_HI(cur_data_offset));
1587         cur_query_entry->address.lo = htole32(U64_LO(cur_data_offset));
1588 
1589         cur_data_offset += sizeof(struct per_queue_stats);
1590     }
1591 }
1592 
1593 void
1594 bxe_stats_init(struct bxe_softc *sc)
1595 {
1596     int /*abs*/port = SC_PORT(sc);
1597     int mb_idx = SC_FW_MB_IDX(sc);
1598     int i;
1599 
1600     sc->stats_pending = 0;
1601     sc->executer_idx = 0;
1602     sc->stats_counter = 0;
1603 
1604     /* port and func stats for management */
1605     if (!BXE_NOMCP(sc)) {
1606         sc->port.port_stx = SHMEM_RD(sc, port_mb[port].port_stx);
1607         sc->func_stx = SHMEM_RD(sc, func_mb[mb_idx].fw_mb_param);
1608     } else {
1609         sc->port.port_stx = 0;
1610         sc->func_stx = 0;
1611     }
1612 
1613     BLOGD(sc, DBG_STATS, "port_stx 0x%x func_stx 0x%x\n",
1614           sc->port.port_stx, sc->func_stx);
1615 
1616     /* pmf should retrieve port statistics from SP on a non-init*/
1617     if (!sc->stats_init && sc->port.pmf && sc->port.port_stx) {
1618         bxe_stats_handle(sc, STATS_EVENT_PMF);
1619     }
1620 
1621     port = SC_PORT(sc);
1622     /* port stats */
1623     memset(&(sc->port.old_nig_stats), 0, sizeof(struct nig_stats));
1624     sc->port.old_nig_stats.brb_discard =
1625         REG_RD(sc, NIG_REG_STAT0_BRB_DISCARD + port*0x38);
1626     sc->port.old_nig_stats.brb_truncate =
1627         REG_RD(sc, NIG_REG_STAT0_BRB_TRUNCATE + port*0x38);
1628     if (!CHIP_IS_E3(sc)) {
1629         REG_RD_DMAE(sc, NIG_REG_STAT0_EGRESS_MAC_PKT0 + port*0x50,
1630                     &(sc->port.old_nig_stats.egress_mac_pkt0_lo), 2);
1631         REG_RD_DMAE(sc, NIG_REG_STAT0_EGRESS_MAC_PKT1 + port*0x50,
1632                     &(sc->port.old_nig_stats.egress_mac_pkt1_lo), 2);
1633     }
1634 
1635     /* function stats */
1636     for (i = 0; i < sc->num_queues; i++) {
1637         memset(&sc->fp[i].old_tclient, 0, sizeof(sc->fp[i].old_tclient));
1638         memset(&sc->fp[i].old_uclient, 0, sizeof(sc->fp[i].old_uclient));
1639         memset(&sc->fp[i].old_xclient, 0, sizeof(sc->fp[i].old_xclient));
1640         if (sc->stats_init) {
1641             memset(&sc->fp[i].eth_q_stats, 0,
1642                    sizeof(sc->fp[i].eth_q_stats));
1643             memset(&sc->fp[i].eth_q_stats_old, 0,
1644                    sizeof(sc->fp[i].eth_q_stats_old));
1645         }
1646     }
1647 
1648     /* prepare statistics ramrod data */
1649     bxe_prep_fw_stats_req(sc);
1650 
1651     if (sc->stats_init) {
1652         memset(&sc->net_stats_old, 0, sizeof(sc->net_stats_old));
1653         memset(&sc->fw_stats_old, 0, sizeof(sc->fw_stats_old));
1654         memset(&sc->eth_stats_old, 0, sizeof(sc->eth_stats_old));
1655         memset(&sc->eth_stats, 0, sizeof(sc->eth_stats));
1656         memset(&sc->func_stats, 0, sizeof(sc->func_stats));
1657 
1658         /* Clean SP from previous statistics */
1659         if (sc->func_stx) {
1660             memset(BXE_SP(sc, func_stats), 0, sizeof(struct host_func_stats));
1661             bxe_func_stats_init(sc);
1662             bxe_hw_stats_post(sc);
1663             bxe_stats_comp(sc);
1664         }
1665     }
1666 
1667     sc->stats_state = STATS_STATE_DISABLED;
1668 
1669     if (sc->port.pmf && sc->port.port_stx) {
1670         bxe_port_stats_base_init(sc);
1671     }
1672 
1673     /* mark the end of statistics initialization */
1674     sc->stats_init = FALSE;
1675 }
1676 
1677 void
1678 bxe_save_statistics(struct bxe_softc *sc)
1679 {
1680     int i;
1681 
1682     /* save queue statistics */
1683     for (i = 0; i < sc->num_queues; i++) {
1684         struct bxe_fastpath *fp = &sc->fp[i];
1685         struct bxe_eth_q_stats *qstats = &fp->eth_q_stats;
1686         struct bxe_eth_q_stats_old *qstats_old = &fp->eth_q_stats_old;
1687 
1688         UPDATE_QSTAT_OLD(total_unicast_bytes_received_hi);
1689         UPDATE_QSTAT_OLD(total_unicast_bytes_received_lo);
1690         UPDATE_QSTAT_OLD(total_broadcast_bytes_received_hi);
1691         UPDATE_QSTAT_OLD(total_broadcast_bytes_received_lo);
1692         UPDATE_QSTAT_OLD(total_multicast_bytes_received_hi);
1693         UPDATE_QSTAT_OLD(total_multicast_bytes_received_lo);
1694         UPDATE_QSTAT_OLD(total_unicast_bytes_transmitted_hi);
1695         UPDATE_QSTAT_OLD(total_unicast_bytes_transmitted_lo);
1696         UPDATE_QSTAT_OLD(total_broadcast_bytes_transmitted_hi);
1697         UPDATE_QSTAT_OLD(total_broadcast_bytes_transmitted_lo);
1698         UPDATE_QSTAT_OLD(total_multicast_bytes_transmitted_hi);
1699         UPDATE_QSTAT_OLD(total_multicast_bytes_transmitted_lo);
1700         UPDATE_QSTAT_OLD(total_tpa_bytes_hi);
1701         UPDATE_QSTAT_OLD(total_tpa_bytes_lo);
1702     }
1703 
1704     /* store port firmware statistics */
1705     if (sc->port.pmf) {
1706         struct bxe_eth_stats *estats = &sc->eth_stats;
1707         struct bxe_fw_port_stats_old *fwstats = &sc->fw_stats_old;
1708         struct host_port_stats *pstats = BXE_SP(sc, port_stats);
1709 
1710         fwstats->pfc_frames_rx_hi = pstats->pfc_frames_rx_hi;
1711         fwstats->pfc_frames_rx_lo = pstats->pfc_frames_rx_lo;
1712         fwstats->pfc_frames_tx_hi = pstats->pfc_frames_tx_hi;
1713         fwstats->pfc_frames_tx_lo = pstats->pfc_frames_tx_lo;
1714 
1715         if (IS_MF(sc)) {
1716             UPDATE_FW_STAT_OLD(mac_filter_discard);
1717             UPDATE_FW_STAT_OLD(mf_tag_discard);
1718             UPDATE_FW_STAT_OLD(brb_truncate_discard);
1719             UPDATE_FW_STAT_OLD(mac_discard);
1720         }
1721     }
1722 }
1723 
1724 void
1725 bxe_afex_collect_stats(struct bxe_softc *sc,
1726                        void             *void_afex_stats,
1727                        uint32_t         stats_type)
1728 {
1729     int i;
1730     struct afex_stats *afex_stats = (struct afex_stats *)void_afex_stats;
1731     struct bxe_eth_stats *estats = &sc->eth_stats;
1732 
1733     memset(afex_stats, 0, sizeof(struct afex_stats));
1734 
1735     for (i = 0; i < sc->num_queues; i++) {
1736         struct bxe_eth_q_stats *qstats = &sc->fp[i].eth_q_stats;
1737 
1738         ADD_64(afex_stats->rx_unicast_bytes_hi,
1739                qstats->total_unicast_bytes_received_hi,
1740                afex_stats->rx_unicast_bytes_lo,
1741                qstats->total_unicast_bytes_received_lo);
1742 
1743         ADD_64(afex_stats->rx_broadcast_bytes_hi,
1744                qstats->total_broadcast_bytes_received_hi,
1745                afex_stats->rx_broadcast_bytes_lo,
1746                qstats->total_broadcast_bytes_received_lo);
1747 
1748         ADD_64(afex_stats->rx_multicast_bytes_hi,
1749                qstats->total_multicast_bytes_received_hi,
1750                afex_stats->rx_multicast_bytes_lo,
1751                qstats->total_multicast_bytes_received_lo);
1752 
1753         ADD_64(afex_stats->rx_unicast_frames_hi,
1754                qstats->total_unicast_packets_received_hi,
1755                afex_stats->rx_unicast_frames_lo,
1756                qstats->total_unicast_packets_received_lo);
1757 
1758         ADD_64(afex_stats->rx_broadcast_frames_hi,
1759                qstats->total_broadcast_packets_received_hi,
1760                afex_stats->rx_broadcast_frames_lo,
1761                qstats->total_broadcast_packets_received_lo);
1762 
1763         ADD_64(afex_stats->rx_multicast_frames_hi,
1764                qstats->total_multicast_packets_received_hi,
1765                afex_stats->rx_multicast_frames_lo,
1766                qstats->total_multicast_packets_received_lo);
1767 
1768         /*
1769          * sum to rx_frames_discarded all discarded
1770          * packets due to size, ttl0 and checksum
1771          */
1772         ADD_64(afex_stats->rx_frames_discarded_hi,
1773                qstats->total_packets_received_checksum_discarded_hi,
1774                afex_stats->rx_frames_discarded_lo,
1775                qstats->total_packets_received_checksum_discarded_lo);
1776 
1777         ADD_64(afex_stats->rx_frames_discarded_hi,
1778                qstats->total_packets_received_ttl0_discarded_hi,
1779                afex_stats->rx_frames_discarded_lo,
1780                qstats->total_packets_received_ttl0_discarded_lo);
1781 
1782         ADD_64(afex_stats->rx_frames_discarded_hi,
1783                qstats->etherstatsoverrsizepkts_hi,
1784                afex_stats->rx_frames_discarded_lo,
1785                qstats->etherstatsoverrsizepkts_lo);
1786 
1787         ADD_64(afex_stats->rx_frames_dropped_hi,
1788                qstats->no_buff_discard_hi,
1789                afex_stats->rx_frames_dropped_lo,
1790                qstats->no_buff_discard_lo);
1791 
1792         ADD_64(afex_stats->tx_unicast_bytes_hi,
1793                qstats->total_unicast_bytes_transmitted_hi,
1794                afex_stats->tx_unicast_bytes_lo,
1795                qstats->total_unicast_bytes_transmitted_lo);
1796 
1797         ADD_64(afex_stats->tx_broadcast_bytes_hi,
1798                qstats->total_broadcast_bytes_transmitted_hi,
1799                afex_stats->tx_broadcast_bytes_lo,
1800                qstats->total_broadcast_bytes_transmitted_lo);
1801 
1802         ADD_64(afex_stats->tx_multicast_bytes_hi,
1803                qstats->total_multicast_bytes_transmitted_hi,
1804                afex_stats->tx_multicast_bytes_lo,
1805                qstats->total_multicast_bytes_transmitted_lo);
1806 
1807         ADD_64(afex_stats->tx_unicast_frames_hi,
1808                qstats->total_unicast_packets_transmitted_hi,
1809                afex_stats->tx_unicast_frames_lo,
1810                qstats->total_unicast_packets_transmitted_lo);
1811 
1812         ADD_64(afex_stats->tx_broadcast_frames_hi,
1813                qstats->total_broadcast_packets_transmitted_hi,
1814                afex_stats->tx_broadcast_frames_lo,
1815                qstats->total_broadcast_packets_transmitted_lo);
1816 
1817         ADD_64(afex_stats->tx_multicast_frames_hi,
1818                qstats->total_multicast_packets_transmitted_hi,
1819                afex_stats->tx_multicast_frames_lo,
1820                qstats->total_multicast_packets_transmitted_lo);
1821 
1822         ADD_64(afex_stats->tx_frames_dropped_hi,
1823                qstats->total_transmitted_dropped_packets_error_hi,
1824                afex_stats->tx_frames_dropped_lo,
1825                qstats->total_transmitted_dropped_packets_error_lo);
1826     }
1827 
1828     /*
1829      * If port stats are requested, add them to the PMF
1830      * stats, as anyway they will be accumulated by the
1831      * MCP before sent to the switch
1832      */
1833     if ((sc->port.pmf) && (stats_type == VICSTATST_UIF_INDEX)) {
1834         ADD_64(afex_stats->rx_frames_dropped_hi,
1835                0,
1836                afex_stats->rx_frames_dropped_lo,
1837                estats->mac_filter_discard);
1838         ADD_64(afex_stats->rx_frames_dropped_hi,
1839                0,
1840                afex_stats->rx_frames_dropped_lo,
1841                estats->brb_truncate_discard);
1842         ADD_64(afex_stats->rx_frames_discarded_hi,
1843                0,
1844                afex_stats->rx_frames_discarded_lo,
1845                estats->mac_discard);
1846     }
1847 }
1848 
1849