xref: /freebsd/sys/dev/bxe/bxe_stats.c (revision 3231251399f9e60fc7175b6352eb5291e9296fe8)
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 __FBSDID("$FreeBSD$");
31 
32 #include "bxe.h"
33 #include "bxe_stats.h"
34 
35 #ifdef __i386__
36 #define BITS_PER_LONG 32
37 #else
38 #define BITS_PER_LONG 64
39 #endif
40 
41 
42 static inline long
43 bxe_hilo(uint32_t *hiref)
44 {
45     uint32_t lo = *(hiref + 1);
46 #if (BITS_PER_LONG == 64)
47     uint32_t hi = *hiref;
48     return (HILO_U64(hi, lo));
49 #else
50     return (lo);
51 #endif
52 }
53 
54 static inline uint16_t
55 bxe_get_port_stats_dma_len(struct bxe_softc *sc)
56 {
57     uint16_t res = 0;
58     uint32_t size;
59 
60     /* 'newest' convention - shmem2 contains the size of the port stats */
61     if (SHMEM2_HAS(sc, sizeof_port_stats)) {
62         size = SHMEM2_RD(sc, sizeof_port_stats);
63         if (size) {
64             res = size;
65         }
66 
67         /* prevent newer BC from causing buffer overflow */
68         if (res > sizeof(struct host_port_stats)) {
69             res = sizeof(struct host_port_stats);
70         }
71     }
72 
73     /*
74      * Older convention - all BCs support the port stats fields up until
75      * the 'not_used' field
76      */
77     if (!res) {
78         res = (offsetof(struct host_port_stats, not_used) + 4);
79 
80         /* if PFC stats are supported by the MFW, DMA them as well */
81         if (sc->devinfo.bc_ver >= REQ_BC_VER_4_PFC_STATS_SUPPORTED) {
82             res += (offsetof(struct host_port_stats, pfc_frames_rx_lo) -
83                     offsetof(struct host_port_stats, pfc_frames_tx_hi) + 4);
84         }
85     }
86 
87     res >>= 2;
88 
89     DBASSERT(sc, !(res > 2 * DMAE_LEN32_RD_MAX), ("big stats dmae length\n"));
90     return (res);
91 }
92 
93 /*
94  * Init service functions
95  */
96 
97 static void
98 bxe_dp_stats(struct bxe_softc *sc)
99 {
100     int i;
101 
102     BLOGD(sc, DBG_STATS,
103           "dumping stats:\n"
104           "  fw_stats_req\n"
105           "    hdr\n"
106           "      cmd_num %d\n"
107           "      reserved0 %d\n"
108           "      drv_stats_counter %d\n"
109           "      reserved1 %d\n"
110           "      stats_counters_addrs %x %x\n",
111           sc->fw_stats_req->hdr.cmd_num,
112           sc->fw_stats_req->hdr.reserved0,
113           sc->fw_stats_req->hdr.drv_stats_counter,
114           sc->fw_stats_req->hdr.reserved1,
115           sc->fw_stats_req->hdr.stats_counters_addrs.hi,
116           sc->fw_stats_req->hdr.stats_counters_addrs.lo);
117 
118     for (i = 0; i < sc->fw_stats_req->hdr.cmd_num; i++) {
119         BLOGD(sc, DBG_STATS,
120               "query[%d]\n"
121               "  kind %d\n"
122               "  index %d\n"
123               "  funcID %d\n"
124               "  reserved %d\n"
125               "  address %x %x\n",
126               i,
127               sc->fw_stats_req->query[i].kind,
128               sc->fw_stats_req->query[i].index,
129               sc->fw_stats_req->query[i].funcID,
130               sc->fw_stats_req->query[i].reserved,
131               sc->fw_stats_req->query[i].address.hi,
132               sc->fw_stats_req->query[i].address.lo);
133     }
134 }
135 
136 /*
137  * Post the next statistics ramrod. Protect it with the lock in
138  * order to ensure the strict order between statistics ramrods
139  * (each ramrod has a sequence number passed in a
140  * sc->fw_stats_req->hdr.drv_stats_counter and ramrods must be
141  * sent in order).
142  */
143 static void
144 bxe_storm_stats_post(struct bxe_softc *sc)
145 {
146     int rc;
147 
148     if (!sc->stats_pending) {
149         BXE_STATS_LOCK(sc);
150 
151         if (sc->stats_pending) {
152             BXE_STATS_UNLOCK(sc);
153             return;
154         }
155 
156         sc->fw_stats_req->hdr.drv_stats_counter =
157             htole16(sc->stats_counter++);
158 
159         BLOGD(sc, DBG_STATS,
160               "sending statistics ramrod %d\n",
161               le16toh(sc->fw_stats_req->hdr.drv_stats_counter));
162 
163         /* adjust the ramrod to include VF queues statistics */
164         // XXX bxe_iov_adjust_stats_req(sc);
165 
166         bxe_dp_stats(sc);
167 
168         /* send FW stats ramrod */
169         rc = bxe_sp_post(sc, RAMROD_CMD_ID_COMMON_STAT_QUERY, 0,
170                          U64_HI(sc->fw_stats_req_mapping),
171                          U64_LO(sc->fw_stats_req_mapping),
172                          NONE_CONNECTION_TYPE);
173         if (rc == 0) {
174             sc->stats_pending = 1;
175         }
176 
177         BXE_STATS_UNLOCK(sc);
178     }
179 }
180 
181 static void
182 bxe_hw_stats_post(struct bxe_softc *sc)
183 {
184     struct dmae_cmd *dmae = &sc->stats_dmae;
185     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
186     int loader_idx;
187     uint32_t opcode;
188 
189     *stats_comp = DMAE_COMP_VAL;
190     if (CHIP_REV_IS_SLOW(sc)) {
191         return;
192     }
193 
194     /* Update MCP's statistics if possible */
195     if (sc->func_stx) {
196         memcpy(BXE_SP(sc, func_stats), &sc->func_stats,
197                sizeof(sc->func_stats));
198     }
199 
200     /* loader */
201     if (sc->executer_idx) {
202         loader_idx = PMF_DMAE_C(sc);
203         opcode =  bxe_dmae_opcode(sc, DMAE_SRC_PCI, DMAE_DST_GRC,
204                                   TRUE, DMAE_COMP_GRC);
205         opcode = bxe_dmae_opcode_clr_src_reset(opcode);
206 
207         memset(dmae, 0, sizeof(struct dmae_cmd));
208         dmae->opcode = opcode;
209         dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, dmae[0]));
210         dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, dmae[0]));
211         dmae->dst_addr_lo = ((DMAE_REG_CMD_MEM +
212                               sizeof(struct dmae_cmd) *
213                               (loader_idx + 1)) >> 2);
214         dmae->dst_addr_hi = 0;
215         dmae->len = sizeof(struct dmae_cmd) >> 2;
216         if (CHIP_IS_E1(sc)) {
217             dmae->len--;
218         }
219         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx + 1] >> 2);
220         dmae->comp_addr_hi = 0;
221         dmae->comp_val = 1;
222 
223         *stats_comp = 0;
224         bxe_post_dmae(sc, dmae, loader_idx);
225     } else if (sc->func_stx) {
226         *stats_comp = 0;
227         bxe_post_dmae(sc, dmae, INIT_DMAE_C(sc));
228     }
229 }
230 
231 static int
232 bxe_stats_comp(struct bxe_softc *sc)
233 {
234     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
235     int cnt = 10;
236 
237     while (*stats_comp != DMAE_COMP_VAL) {
238         if (!cnt) {
239             BLOGE(sc, "Timeout waiting for stats finished\n");
240 	    BXE_SET_ERROR_BIT(sc, BXE_ERR_STATS_TO);
241             taskqueue_enqueue_timeout(taskqueue_thread,
242                 &sc->sp_err_timeout_task, hz/10);
243             break;
244 
245         }
246 
247         cnt--;
248         DELAY(1000);
249     }
250 
251     return (1);
252 }
253 
254 /*
255  * Statistics service functions
256  */
257 
258 static void
259 bxe_stats_pmf_update(struct bxe_softc *sc)
260 {
261     struct dmae_cmd *dmae;
262     uint32_t opcode;
263     int loader_idx = PMF_DMAE_C(sc);
264     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
265 
266     if (sc->devinfo.bc_ver <= 0x06001400) {
267         /*
268          * Bootcode v6.0.21 fixed a GRC timeout that occurs when accessing
269          * BRB registers while the BRB block is in reset. The DMA transfer
270          * below triggers this issue resulting in the DMAE to stop
271          * functioning. Skip this initial stats transfer for old bootcode
272          * versions <= 6.0.20.
273          */
274         return;
275     }
276 
277     /* sanity */
278     if (!sc->port.pmf || !sc->port.port_stx) {
279         BLOGE(sc, "BUG!\n");
280         return;
281     }
282 
283     sc->executer_idx = 0;
284 
285     opcode = bxe_dmae_opcode(sc, DMAE_SRC_GRC, DMAE_DST_PCI, FALSE, 0);
286 
287     dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
288     dmae->opcode = bxe_dmae_opcode_add_comp(opcode, DMAE_COMP_GRC);
289     dmae->src_addr_lo = (sc->port.port_stx >> 2);
290     dmae->src_addr_hi = 0;
291     dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, port_stats));
292     dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, port_stats));
293     dmae->len = DMAE_LEN32_RD_MAX;
294     dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
295     dmae->comp_addr_hi = 0;
296     dmae->comp_val = 1;
297 
298     dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
299     dmae->opcode = bxe_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
300     dmae->src_addr_lo = ((sc->port.port_stx >> 2) + DMAE_LEN32_RD_MAX);
301     dmae->src_addr_hi = 0;
302     dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, port_stats) +
303                                DMAE_LEN32_RD_MAX * 4);
304     dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, port_stats) +
305                                DMAE_LEN32_RD_MAX * 4);
306     dmae->len = (bxe_get_port_stats_dma_len(sc) - DMAE_LEN32_RD_MAX);
307 
308     dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
309     dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
310     dmae->comp_val = DMAE_COMP_VAL;
311 
312     *stats_comp = 0;
313     bxe_hw_stats_post(sc);
314     bxe_stats_comp(sc);
315 }
316 
317 static void
318 bxe_port_stats_init(struct bxe_softc *sc)
319 {
320     struct dmae_cmd *dmae;
321     int port = SC_PORT(sc);
322     uint32_t opcode;
323     int loader_idx = PMF_DMAE_C(sc);
324     uint32_t mac_addr;
325     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
326 
327     /* sanity */
328     if (!sc->link_vars.link_up || !sc->port.pmf) {
329         BLOGE(sc, "BUG!\n");
330         return;
331     }
332 
333     sc->executer_idx = 0;
334 
335     /* MCP */
336     opcode = bxe_dmae_opcode(sc, DMAE_SRC_PCI, DMAE_DST_GRC,
337                              TRUE, DMAE_COMP_GRC);
338 
339     if (sc->port.port_stx) {
340         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
341         dmae->opcode = opcode;
342         dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, port_stats));
343         dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, port_stats));
344         dmae->dst_addr_lo = sc->port.port_stx >> 2;
345         dmae->dst_addr_hi = 0;
346         dmae->len = bxe_get_port_stats_dma_len(sc);
347         dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
348         dmae->comp_addr_hi = 0;
349         dmae->comp_val = 1;
350     }
351 
352     if (sc->func_stx) {
353         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
354         dmae->opcode = opcode;
355         dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, func_stats));
356         dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, func_stats));
357         dmae->dst_addr_lo = (sc->func_stx >> 2);
358         dmae->dst_addr_hi = 0;
359         dmae->len = (sizeof(struct host_func_stats) >> 2);
360         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
361         dmae->comp_addr_hi = 0;
362         dmae->comp_val = 1;
363     }
364 
365     /* MAC */
366     opcode = bxe_dmae_opcode(sc, DMAE_SRC_GRC, DMAE_DST_PCI,
367                              TRUE, DMAE_COMP_GRC);
368 
369     /* EMAC is special */
370     if (sc->link_vars.mac_type == ELINK_MAC_TYPE_EMAC) {
371         mac_addr = (port ? GRCBASE_EMAC1 : GRCBASE_EMAC0);
372 
373         /* EMAC_REG_EMAC_RX_STAT_AC (EMAC_REG_EMAC_RX_STAT_AC_COUNT)*/
374         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
375         dmae->opcode = opcode;
376         dmae->src_addr_lo = (mac_addr + EMAC_REG_EMAC_RX_STAT_AC) >> 2;
377         dmae->src_addr_hi = 0;
378         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, mac_stats));
379         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, mac_stats));
380         dmae->len = EMAC_REG_EMAC_RX_STAT_AC_COUNT;
381         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
382         dmae->comp_addr_hi = 0;
383         dmae->comp_val = 1;
384 
385         /* EMAC_REG_EMAC_RX_STAT_AC_28 */
386         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
387         dmae->opcode = opcode;
388         dmae->src_addr_lo = ((mac_addr + EMAC_REG_EMAC_RX_STAT_AC_28) >> 2);
389         dmae->src_addr_hi = 0;
390         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, mac_stats) +
391                                    offsetof(struct emac_stats,
392                                             rx_stat_falsecarriererrors));
393         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, mac_stats) +
394                                    offsetof(struct emac_stats,
395                                             rx_stat_falsecarriererrors));
396         dmae->len = 1;
397         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
398         dmae->comp_addr_hi = 0;
399         dmae->comp_val = 1;
400 
401         /* EMAC_REG_EMAC_TX_STAT_AC (EMAC_REG_EMAC_TX_STAT_AC_COUNT)*/
402         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
403         dmae->opcode = opcode;
404         dmae->src_addr_lo = ((mac_addr + EMAC_REG_EMAC_TX_STAT_AC) >> 2);
405         dmae->src_addr_hi = 0;
406         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, mac_stats) +
407                                    offsetof(struct emac_stats,
408                                             tx_stat_ifhcoutoctets));
409         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, mac_stats) +
410                                    offsetof(struct emac_stats,
411                                             tx_stat_ifhcoutoctets));
412         dmae->len = EMAC_REG_EMAC_TX_STAT_AC_COUNT;
413         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
414         dmae->comp_addr_hi = 0;
415         dmae->comp_val = 1;
416     } else {
417         uint32_t tx_src_addr_lo, rx_src_addr_lo;
418         uint16_t rx_len, tx_len;
419 
420         /* configure the params according to MAC type */
421         switch (sc->link_vars.mac_type) {
422         case ELINK_MAC_TYPE_BMAC:
423             mac_addr = (port) ? NIG_REG_INGRESS_BMAC1_MEM :
424                                 NIG_REG_INGRESS_BMAC0_MEM;
425 
426             /* BIGMAC_REGISTER_TX_STAT_GTPKT ..
427                BIGMAC_REGISTER_TX_STAT_GTBYT */
428             if (CHIP_IS_E1x(sc)) {
429                 tx_src_addr_lo =
430                     ((mac_addr + BIGMAC_REGISTER_TX_STAT_GTPKT) >> 2);
431                 tx_len = ((8 + BIGMAC_REGISTER_TX_STAT_GTBYT -
432                            BIGMAC_REGISTER_TX_STAT_GTPKT) >> 2);
433                 rx_src_addr_lo =
434                     ((mac_addr + BIGMAC_REGISTER_RX_STAT_GR64) >> 2);
435                 rx_len = ((8 + BIGMAC_REGISTER_RX_STAT_GRIPJ -
436                            BIGMAC_REGISTER_RX_STAT_GR64) >> 2);
437             } else {
438                 tx_src_addr_lo =
439                     ((mac_addr + BIGMAC2_REGISTER_TX_STAT_GTPOK) >> 2);
440                 tx_len = ((8 + BIGMAC2_REGISTER_TX_STAT_GTBYT -
441                            BIGMAC2_REGISTER_TX_STAT_GTPOK) >> 2);
442                 rx_src_addr_lo =
443                     ((mac_addr + BIGMAC2_REGISTER_RX_STAT_GR64) >> 2);
444                 rx_len = ((8 + BIGMAC2_REGISTER_RX_STAT_GRIPJ -
445                            BIGMAC2_REGISTER_RX_STAT_GR64) >> 2);
446             }
447 
448             break;
449 
450         case ELINK_MAC_TYPE_UMAC: /* handled by MSTAT */
451         case ELINK_MAC_TYPE_XMAC: /* handled by MSTAT */
452         default:
453             mac_addr = (port) ? GRCBASE_MSTAT1 : GRCBASE_MSTAT0;
454             tx_src_addr_lo = ((mac_addr + MSTAT_REG_TX_STAT_GTXPOK_LO) >> 2);
455             rx_src_addr_lo = ((mac_addr + MSTAT_REG_RX_STAT_GR64_LO) >> 2);
456             tx_len =
457                 (sizeof(sc->sp->mac_stats.mstat_stats.stats_tx) >> 2);
458             rx_len =
459                 (sizeof(sc->sp->mac_stats.mstat_stats.stats_rx) >> 2);
460             break;
461         }
462 
463         /* TX stats */
464         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
465         dmae->opcode = opcode;
466         dmae->src_addr_lo = tx_src_addr_lo;
467         dmae->src_addr_hi = 0;
468         dmae->len = tx_len;
469         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, mac_stats));
470         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, mac_stats));
471         dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
472         dmae->comp_addr_hi = 0;
473         dmae->comp_val = 1;
474 
475         /* RX stats */
476         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
477         dmae->opcode = opcode;
478         dmae->src_addr_hi = 0;
479         dmae->src_addr_lo = rx_src_addr_lo;
480         dmae->dst_addr_lo =
481             U64_LO(BXE_SP_MAPPING(sc, mac_stats) + (tx_len << 2));
482         dmae->dst_addr_hi =
483             U64_HI(BXE_SP_MAPPING(sc, mac_stats) + (tx_len << 2));
484         dmae->len = rx_len;
485         dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
486         dmae->comp_addr_hi = 0;
487         dmae->comp_val = 1;
488     }
489 
490     /* NIG */
491     if (!CHIP_IS_E3(sc)) {
492         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
493         dmae->opcode = opcode;
494         dmae->src_addr_lo =
495             (port ? NIG_REG_STAT1_EGRESS_MAC_PKT0 :
496                     NIG_REG_STAT0_EGRESS_MAC_PKT0) >> 2;
497         dmae->src_addr_hi = 0;
498         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, nig_stats) +
499                                    offsetof(struct nig_stats,
500                                             egress_mac_pkt0_lo));
501         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, nig_stats) +
502                                    offsetof(struct nig_stats,
503                                             egress_mac_pkt0_lo));
504         dmae->len = ((2 * sizeof(uint32_t)) >> 2);
505         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
506         dmae->comp_addr_hi = 0;
507         dmae->comp_val = 1;
508 
509         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
510         dmae->opcode = opcode;
511         dmae->src_addr_lo =
512             (port ? NIG_REG_STAT1_EGRESS_MAC_PKT1 :
513                     NIG_REG_STAT0_EGRESS_MAC_PKT1) >> 2;
514         dmae->src_addr_hi = 0;
515         dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, nig_stats) +
516                                    offsetof(struct nig_stats,
517                                             egress_mac_pkt1_lo));
518         dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, nig_stats) +
519                                    offsetof(struct nig_stats,
520                                             egress_mac_pkt1_lo));
521         dmae->len = ((2 * sizeof(uint32_t)) >> 2);
522         dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
523         dmae->comp_addr_hi = 0;
524         dmae->comp_val = 1;
525     }
526 
527     dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
528     dmae->opcode = bxe_dmae_opcode(sc, DMAE_SRC_GRC, DMAE_DST_PCI,
529                                    TRUE, DMAE_COMP_PCI);
530     dmae->src_addr_lo =
531         (port ? NIG_REG_STAT1_BRB_DISCARD :
532                 NIG_REG_STAT0_BRB_DISCARD) >> 2;
533     dmae->src_addr_hi = 0;
534     dmae->dst_addr_lo = U64_LO(BXE_SP_MAPPING(sc, nig_stats));
535     dmae->dst_addr_hi = U64_HI(BXE_SP_MAPPING(sc, nig_stats));
536     dmae->len = (sizeof(struct nig_stats) - 4*sizeof(uint32_t)) >> 2;
537 
538     dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
539     dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
540     dmae->comp_val = DMAE_COMP_VAL;
541 
542     *stats_comp = 0;
543 }
544 
545 static void
546 bxe_func_stats_init(struct bxe_softc *sc)
547 {
548     struct dmae_cmd *dmae = &sc->stats_dmae;
549     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
550 
551     /* sanity */
552     if (!sc->func_stx) {
553         BLOGE(sc, "BUG!\n");
554         return;
555     }
556 
557     sc->executer_idx = 0;
558     memset(dmae, 0, sizeof(struct dmae_cmd));
559 
560     dmae->opcode = bxe_dmae_opcode(sc, DMAE_SRC_PCI, DMAE_DST_GRC,
561                                    TRUE, DMAE_COMP_PCI);
562     dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, func_stats));
563     dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, func_stats));
564     dmae->dst_addr_lo = (sc->func_stx >> 2);
565     dmae->dst_addr_hi = 0;
566     dmae->len = (sizeof(struct host_func_stats) >> 2);
567     dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
568     dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
569     dmae->comp_val = DMAE_COMP_VAL;
570 
571     *stats_comp = 0;
572 }
573 
574 static void
575 bxe_stats_start(struct bxe_softc *sc)
576 {
577     /*
578      * VFs travel through here as part of the statistics FSM, but no action
579      * is required
580      */
581     if (IS_VF(sc)) {
582         return;
583     }
584 
585     if (sc->port.pmf) {
586         bxe_port_stats_init(sc);
587     }
588 
589     else if (sc->func_stx) {
590         bxe_func_stats_init(sc);
591     }
592 
593     bxe_hw_stats_post(sc);
594     bxe_storm_stats_post(sc);
595 }
596 
597 static void
598 bxe_stats_pmf_start(struct bxe_softc *sc)
599 {
600     bxe_stats_comp(sc);
601     bxe_stats_pmf_update(sc);
602     bxe_stats_start(sc);
603 }
604 
605 static void
606 bxe_stats_restart(struct bxe_softc *sc)
607 {
608     /*
609      * VFs travel through here as part of the statistics FSM, but no action
610      * is required
611      */
612     if (IS_VF(sc)) {
613         return;
614     }
615 
616     bxe_stats_comp(sc);
617     bxe_stats_start(sc);
618 }
619 
620 static void
621 bxe_bmac_stats_update(struct bxe_softc *sc)
622 {
623     struct host_port_stats *pstats = BXE_SP(sc, port_stats);
624     struct bxe_eth_stats *estats = &sc->eth_stats;
625     struct {
626         uint32_t lo;
627         uint32_t hi;
628     } diff;
629 
630     if (CHIP_IS_E1x(sc)) {
631         struct bmac1_stats *new = BXE_SP(sc, mac_stats.bmac1_stats);
632 
633         /* the macros below will use "bmac1_stats" type */
634         UPDATE_STAT64(rx_stat_grerb, rx_stat_ifhcinbadoctets);
635         UPDATE_STAT64(rx_stat_grfcs, rx_stat_dot3statsfcserrors);
636         UPDATE_STAT64(rx_stat_grund, rx_stat_etherstatsundersizepkts);
637         UPDATE_STAT64(rx_stat_grovr, rx_stat_dot3statsframestoolong);
638         UPDATE_STAT64(rx_stat_grfrg, rx_stat_etherstatsfragments);
639         UPDATE_STAT64(rx_stat_grjbr, rx_stat_etherstatsjabbers);
640         UPDATE_STAT64(rx_stat_grxcf, rx_stat_maccontrolframesreceived);
641         UPDATE_STAT64(rx_stat_grxpf, rx_stat_xoffstateentered);
642         UPDATE_STAT64(rx_stat_grxpf, rx_stat_mac_xpf);
643 
644         UPDATE_STAT64(tx_stat_gtxpf, tx_stat_outxoffsent);
645         UPDATE_STAT64(tx_stat_gtxpf, tx_stat_flowcontroldone);
646         UPDATE_STAT64(tx_stat_gt64, tx_stat_etherstatspkts64octets);
647         UPDATE_STAT64(tx_stat_gt127,
648                       tx_stat_etherstatspkts65octetsto127octets);
649         UPDATE_STAT64(tx_stat_gt255,
650                       tx_stat_etherstatspkts128octetsto255octets);
651         UPDATE_STAT64(tx_stat_gt511,
652                       tx_stat_etherstatspkts256octetsto511octets);
653         UPDATE_STAT64(tx_stat_gt1023,
654                       tx_stat_etherstatspkts512octetsto1023octets);
655         UPDATE_STAT64(tx_stat_gt1518,
656                       tx_stat_etherstatspkts1024octetsto1522octets);
657         UPDATE_STAT64(tx_stat_gt2047, tx_stat_mac_2047);
658         UPDATE_STAT64(tx_stat_gt4095, tx_stat_mac_4095);
659         UPDATE_STAT64(tx_stat_gt9216, tx_stat_mac_9216);
660         UPDATE_STAT64(tx_stat_gt16383, tx_stat_mac_16383);
661         UPDATE_STAT64(tx_stat_gterr,
662                       tx_stat_dot3statsinternalmactransmiterrors);
663         UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
664     } else {
665         struct bmac2_stats *new = BXE_SP(sc, mac_stats.bmac2_stats);
666         struct bxe_fw_port_stats_old *fwstats = &sc->fw_stats_old;
667 
668         /* the macros below will use "bmac2_stats" type */
669         UPDATE_STAT64(rx_stat_grerb, rx_stat_ifhcinbadoctets);
670         UPDATE_STAT64(rx_stat_grfcs, rx_stat_dot3statsfcserrors);
671         UPDATE_STAT64(rx_stat_grund, rx_stat_etherstatsundersizepkts);
672         UPDATE_STAT64(rx_stat_grovr, rx_stat_dot3statsframestoolong);
673         UPDATE_STAT64(rx_stat_grfrg, rx_stat_etherstatsfragments);
674         UPDATE_STAT64(rx_stat_grjbr, rx_stat_etherstatsjabbers);
675         UPDATE_STAT64(rx_stat_grxcf, rx_stat_maccontrolframesreceived);
676         UPDATE_STAT64(rx_stat_grxpf, rx_stat_xoffstateentered);
677         UPDATE_STAT64(rx_stat_grxpf, rx_stat_mac_xpf);
678         UPDATE_STAT64(tx_stat_gtxpf, tx_stat_outxoffsent);
679         UPDATE_STAT64(tx_stat_gtxpf, tx_stat_flowcontroldone);
680         UPDATE_STAT64(tx_stat_gt64, tx_stat_etherstatspkts64octets);
681         UPDATE_STAT64(tx_stat_gt127,
682                       tx_stat_etherstatspkts65octetsto127octets);
683         UPDATE_STAT64(tx_stat_gt255,
684                       tx_stat_etherstatspkts128octetsto255octets);
685         UPDATE_STAT64(tx_stat_gt511,
686                       tx_stat_etherstatspkts256octetsto511octets);
687         UPDATE_STAT64(tx_stat_gt1023,
688                       tx_stat_etherstatspkts512octetsto1023octets);
689         UPDATE_STAT64(tx_stat_gt1518,
690                       tx_stat_etherstatspkts1024octetsto1522octets);
691         UPDATE_STAT64(tx_stat_gt2047, tx_stat_mac_2047);
692         UPDATE_STAT64(tx_stat_gt4095, tx_stat_mac_4095);
693         UPDATE_STAT64(tx_stat_gt9216, tx_stat_mac_9216);
694         UPDATE_STAT64(tx_stat_gt16383, tx_stat_mac_16383);
695         UPDATE_STAT64(tx_stat_gterr,
696                       tx_stat_dot3statsinternalmactransmiterrors);
697         UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
698 
699         /* collect PFC stats */
700         pstats->pfc_frames_tx_hi = new->tx_stat_gtpp_hi;
701         pstats->pfc_frames_tx_lo = new->tx_stat_gtpp_lo;
702         ADD_64(pstats->pfc_frames_tx_hi, fwstats->pfc_frames_tx_hi,
703                pstats->pfc_frames_tx_lo, fwstats->pfc_frames_tx_lo);
704 
705         pstats->pfc_frames_rx_hi = new->rx_stat_grpp_hi;
706         pstats->pfc_frames_rx_lo = new->rx_stat_grpp_lo;
707         ADD_64(pstats->pfc_frames_rx_hi, fwstats->pfc_frames_rx_hi,
708                pstats->pfc_frames_rx_lo, fwstats->pfc_frames_rx_lo);
709     }
710 
711     estats->pause_frames_received_hi = pstats->mac_stx[1].rx_stat_mac_xpf_hi;
712     estats->pause_frames_received_lo = pstats->mac_stx[1].rx_stat_mac_xpf_lo;
713 
714     estats->pause_frames_sent_hi = pstats->mac_stx[1].tx_stat_outxoffsent_hi;
715     estats->pause_frames_sent_lo = pstats->mac_stx[1].tx_stat_outxoffsent_lo;
716 
717     estats->pfc_frames_received_hi = pstats->pfc_frames_rx_hi;
718     estats->pfc_frames_received_lo = pstats->pfc_frames_rx_lo;
719     estats->pfc_frames_sent_hi = pstats->pfc_frames_tx_hi;
720     estats->pfc_frames_sent_lo = pstats->pfc_frames_tx_lo;
721 }
722 
723 static void
724 bxe_mstat_stats_update(struct bxe_softc *sc)
725 {
726     struct host_port_stats *pstats = BXE_SP(sc, port_stats);
727     struct bxe_eth_stats *estats = &sc->eth_stats;
728     struct mstat_stats *new = BXE_SP(sc, mac_stats.mstat_stats);
729 
730     ADD_STAT64(stats_rx.rx_grerb, rx_stat_ifhcinbadoctets);
731     ADD_STAT64(stats_rx.rx_grfcs, rx_stat_dot3statsfcserrors);
732     ADD_STAT64(stats_rx.rx_grund, rx_stat_etherstatsundersizepkts);
733     ADD_STAT64(stats_rx.rx_grovr, rx_stat_dot3statsframestoolong);
734     ADD_STAT64(stats_rx.rx_grfrg, rx_stat_etherstatsfragments);
735     ADD_STAT64(stats_rx.rx_grxcf, rx_stat_maccontrolframesreceived);
736     ADD_STAT64(stats_rx.rx_grxpf, rx_stat_xoffstateentered);
737     ADD_STAT64(stats_rx.rx_grxpf, rx_stat_mac_xpf);
738     ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_outxoffsent);
739     ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_flowcontroldone);
740 
741     /* collect pfc stats */
742     ADD_64(pstats->pfc_frames_tx_hi, new->stats_tx.tx_gtxpp_hi,
743            pstats->pfc_frames_tx_lo, new->stats_tx.tx_gtxpp_lo);
744     ADD_64(pstats->pfc_frames_rx_hi, new->stats_rx.rx_grxpp_hi,
745            pstats->pfc_frames_rx_lo, new->stats_rx.rx_grxpp_lo);
746 
747     ADD_STAT64(stats_tx.tx_gt64, tx_stat_etherstatspkts64octets);
748     ADD_STAT64(stats_tx.tx_gt127, tx_stat_etherstatspkts65octetsto127octets);
749     ADD_STAT64(stats_tx.tx_gt255, tx_stat_etherstatspkts128octetsto255octets);
750     ADD_STAT64(stats_tx.tx_gt511, tx_stat_etherstatspkts256octetsto511octets);
751     ADD_STAT64(stats_tx.tx_gt1023,
752                tx_stat_etherstatspkts512octetsto1023octets);
753     ADD_STAT64(stats_tx.tx_gt1518,
754                tx_stat_etherstatspkts1024octetsto1522octets);
755     ADD_STAT64(stats_tx.tx_gt2047, tx_stat_mac_2047);
756 
757     ADD_STAT64(stats_tx.tx_gt4095, tx_stat_mac_4095);
758     ADD_STAT64(stats_tx.tx_gt9216, tx_stat_mac_9216);
759     ADD_STAT64(stats_tx.tx_gt16383, tx_stat_mac_16383);
760 
761     ADD_STAT64(stats_tx.tx_gterr, tx_stat_dot3statsinternalmactransmiterrors);
762     ADD_STAT64(stats_tx.tx_gtufl, tx_stat_mac_ufl);
763 
764     estats->etherstatspkts1024octetsto1522octets_hi =
765         pstats->mac_stx[1].tx_stat_etherstatspkts1024octetsto1522octets_hi;
766     estats->etherstatspkts1024octetsto1522octets_lo =
767         pstats->mac_stx[1].tx_stat_etherstatspkts1024octetsto1522octets_lo;
768 
769     estats->etherstatspktsover1522octets_hi =
770         pstats->mac_stx[1].tx_stat_mac_2047_hi;
771     estats->etherstatspktsover1522octets_lo =
772         pstats->mac_stx[1].tx_stat_mac_2047_lo;
773 
774     ADD_64(estats->etherstatspktsover1522octets_hi,
775            pstats->mac_stx[1].tx_stat_mac_4095_hi,
776            estats->etherstatspktsover1522octets_lo,
777            pstats->mac_stx[1].tx_stat_mac_4095_lo);
778 
779     ADD_64(estats->etherstatspktsover1522octets_hi,
780            pstats->mac_stx[1].tx_stat_mac_9216_hi,
781            estats->etherstatspktsover1522octets_lo,
782            pstats->mac_stx[1].tx_stat_mac_9216_lo);
783 
784     ADD_64(estats->etherstatspktsover1522octets_hi,
785            pstats->mac_stx[1].tx_stat_mac_16383_hi,
786            estats->etherstatspktsover1522octets_lo,
787            pstats->mac_stx[1].tx_stat_mac_16383_lo);
788 
789     estats->pause_frames_received_hi = pstats->mac_stx[1].rx_stat_mac_xpf_hi;
790     estats->pause_frames_received_lo = pstats->mac_stx[1].rx_stat_mac_xpf_lo;
791 
792     estats->pause_frames_sent_hi = pstats->mac_stx[1].tx_stat_outxoffsent_hi;
793     estats->pause_frames_sent_lo = pstats->mac_stx[1].tx_stat_outxoffsent_lo;
794 
795     estats->pfc_frames_received_hi = pstats->pfc_frames_rx_hi;
796     estats->pfc_frames_received_lo = pstats->pfc_frames_rx_lo;
797     estats->pfc_frames_sent_hi = pstats->pfc_frames_tx_hi;
798     estats->pfc_frames_sent_lo = pstats->pfc_frames_tx_lo;
799 }
800 
801 static void
802 bxe_emac_stats_update(struct bxe_softc *sc)
803 {
804     struct emac_stats *new = BXE_SP(sc, mac_stats.emac_stats);
805     struct host_port_stats *pstats = BXE_SP(sc, port_stats);
806     struct bxe_eth_stats *estats = &sc->eth_stats;
807 
808     UPDATE_EXTEND_STAT(rx_stat_ifhcinbadoctets);
809     UPDATE_EXTEND_STAT(tx_stat_ifhcoutbadoctets);
810     UPDATE_EXTEND_STAT(rx_stat_dot3statsfcserrors);
811     UPDATE_EXTEND_STAT(rx_stat_dot3statsalignmenterrors);
812     UPDATE_EXTEND_STAT(rx_stat_dot3statscarriersenseerrors);
813     UPDATE_EXTEND_STAT(rx_stat_falsecarriererrors);
814     UPDATE_EXTEND_STAT(rx_stat_etherstatsundersizepkts);
815     UPDATE_EXTEND_STAT(rx_stat_dot3statsframestoolong);
816     UPDATE_EXTEND_STAT(rx_stat_etherstatsfragments);
817     UPDATE_EXTEND_STAT(rx_stat_etherstatsjabbers);
818     UPDATE_EXTEND_STAT(rx_stat_maccontrolframesreceived);
819     UPDATE_EXTEND_STAT(rx_stat_xoffstateentered);
820     UPDATE_EXTEND_STAT(rx_stat_xonpauseframesreceived);
821     UPDATE_EXTEND_STAT(rx_stat_xoffpauseframesreceived);
822     UPDATE_EXTEND_STAT(tx_stat_outxonsent);
823     UPDATE_EXTEND_STAT(tx_stat_outxoffsent);
824     UPDATE_EXTEND_STAT(tx_stat_flowcontroldone);
825     UPDATE_EXTEND_STAT(tx_stat_etherstatscollisions);
826     UPDATE_EXTEND_STAT(tx_stat_dot3statssinglecollisionframes);
827     UPDATE_EXTEND_STAT(tx_stat_dot3statsmultiplecollisionframes);
828     UPDATE_EXTEND_STAT(tx_stat_dot3statsdeferredtransmissions);
829     UPDATE_EXTEND_STAT(tx_stat_dot3statsexcessivecollisions);
830     UPDATE_EXTEND_STAT(tx_stat_dot3statslatecollisions);
831     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts64octets);
832     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts65octetsto127octets);
833     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts128octetsto255octets);
834     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts256octetsto511octets);
835     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts512octetsto1023octets);
836     UPDATE_EXTEND_STAT(tx_stat_etherstatspkts1024octetsto1522octets);
837     UPDATE_EXTEND_STAT(tx_stat_etherstatspktsover1522octets);
838     UPDATE_EXTEND_STAT(tx_stat_dot3statsinternalmactransmiterrors);
839 
840     estats->pause_frames_received_hi =
841         pstats->mac_stx[1].rx_stat_xonpauseframesreceived_hi;
842     estats->pause_frames_received_lo =
843         pstats->mac_stx[1].rx_stat_xonpauseframesreceived_lo;
844     ADD_64(estats->pause_frames_received_hi,
845            pstats->mac_stx[1].rx_stat_xoffpauseframesreceived_hi,
846            estats->pause_frames_received_lo,
847            pstats->mac_stx[1].rx_stat_xoffpauseframesreceived_lo);
848 
849     estats->pause_frames_sent_hi =
850         pstats->mac_stx[1].tx_stat_outxonsent_hi;
851     estats->pause_frames_sent_lo =
852         pstats->mac_stx[1].tx_stat_outxonsent_lo;
853     ADD_64(estats->pause_frames_sent_hi,
854            pstats->mac_stx[1].tx_stat_outxoffsent_hi,
855            estats->pause_frames_sent_lo,
856            pstats->mac_stx[1].tx_stat_outxoffsent_lo);
857 }
858 
859 static int
860 bxe_hw_stats_update(struct bxe_softc *sc)
861 {
862     struct nig_stats *new = BXE_SP(sc, nig_stats);
863     struct nig_stats *old = &(sc->port.old_nig_stats);
864     struct host_port_stats *pstats = BXE_SP(sc, port_stats);
865     struct bxe_eth_stats *estats = &sc->eth_stats;
866     uint32_t lpi_reg, nig_timer_max;
867     struct {
868         uint32_t lo;
869         uint32_t hi;
870     } diff;
871 
872     switch (sc->link_vars.mac_type) {
873     case ELINK_MAC_TYPE_BMAC:
874         bxe_bmac_stats_update(sc);
875         break;
876 
877     case ELINK_MAC_TYPE_EMAC:
878         bxe_emac_stats_update(sc);
879         break;
880 
881     case ELINK_MAC_TYPE_UMAC:
882     case ELINK_MAC_TYPE_XMAC:
883         bxe_mstat_stats_update(sc);
884         break;
885 
886     case ELINK_MAC_TYPE_NONE: /* unreached */
887         BLOGD(sc, DBG_STATS,
888               "stats updated by DMAE but no MAC active\n");
889         return (-1);
890 
891     default: /* unreached */
892         BLOGE(sc, "stats update failed, unknown MAC type\n");
893     }
894 
895     ADD_EXTEND_64(pstats->brb_drop_hi, pstats->brb_drop_lo,
896                   new->brb_discard - old->brb_discard);
897     ADD_EXTEND_64(estats->brb_truncate_hi, estats->brb_truncate_lo,
898                   new->brb_truncate - old->brb_truncate);
899 
900     if (!CHIP_IS_E3(sc)) {
901         UPDATE_STAT64_NIG(egress_mac_pkt0,
902                           etherstatspkts1024octetsto1522octets);
903         UPDATE_STAT64_NIG(egress_mac_pkt1,
904                           etherstatspktsover1522octets);
905     }
906 
907     memcpy(old, new, sizeof(struct nig_stats));
908 
909     memcpy(&(estats->rx_stat_ifhcinbadoctets_hi), &(pstats->mac_stx[1]),
910            sizeof(struct mac_stx));
911     estats->brb_drop_hi = pstats->brb_drop_hi;
912     estats->brb_drop_lo = pstats->brb_drop_lo;
913 
914     pstats->host_port_stats_counter++;
915 
916     if (CHIP_IS_E3(sc)) {
917         lpi_reg = (SC_PORT(sc)) ?
918                       MISC_REG_CPMU_LP_SM_ENT_CNT_P1 :
919                       MISC_REG_CPMU_LP_SM_ENT_CNT_P0;
920         estats->eee_tx_lpi += REG_RD(sc, lpi_reg);
921     }
922 
923     if (!BXE_NOMCP(sc)) {
924         nig_timer_max = SHMEM_RD(sc, port_mb[SC_PORT(sc)].stat_nig_timer);
925         if (nig_timer_max != estats->nig_timer_max) {
926             estats->nig_timer_max = nig_timer_max;
927 	    /*NOTE: not setting error bit */
928             BLOGE(sc, "invalid NIG timer max (%u)\n",
929                   estats->nig_timer_max);
930         }
931     }
932 
933     return (0);
934 }
935 
936 static int
937 bxe_storm_stats_validate_counters(struct bxe_softc *sc)
938 {
939     struct stats_counter *counters = &sc->fw_stats_data->storm_counters;
940     uint16_t cur_stats_counter;
941 
942     /*
943      * Make sure we use the value of the counter
944      * used for sending the last stats ramrod.
945      */
946     BXE_STATS_LOCK(sc);
947     cur_stats_counter = (sc->stats_counter - 1);
948     BXE_STATS_UNLOCK(sc);
949 
950     /* are storm stats valid? */
951     if (le16toh(counters->xstats_counter) != cur_stats_counter) {
952         BLOGD(sc, DBG_STATS,
953               "stats not updated by xstorm, "
954               "counter 0x%x != stats_counter 0x%x\n",
955               le16toh(counters->xstats_counter), sc->stats_counter);
956         return (-EAGAIN);
957     }
958 
959     if (le16toh(counters->ustats_counter) != cur_stats_counter) {
960         BLOGD(sc, DBG_STATS,
961               "stats not updated by ustorm, "
962               "counter 0x%x != stats_counter 0x%x\n",
963               le16toh(counters->ustats_counter), sc->stats_counter);
964         return (-EAGAIN);
965     }
966 
967     if (le16toh(counters->cstats_counter) != cur_stats_counter) {
968         BLOGD(sc, DBG_STATS,
969               "stats not updated by cstorm, "
970               "counter 0x%x != stats_counter 0x%x\n",
971               le16toh(counters->cstats_counter), sc->stats_counter);
972         return (-EAGAIN);
973     }
974 
975     if (le16toh(counters->tstats_counter) != cur_stats_counter) {
976         BLOGD(sc, DBG_STATS,
977               "stats not updated by tstorm, "
978               "counter 0x%x != stats_counter 0x%x\n",
979               le16toh(counters->tstats_counter), sc->stats_counter);
980         return (-EAGAIN);
981     }
982 
983     return (0);
984 }
985 
986 static int
987 bxe_storm_stats_update(struct bxe_softc *sc)
988 {
989     struct tstorm_per_port_stats *tport =
990         &sc->fw_stats_data->port.tstorm_port_statistics;
991     struct tstorm_per_pf_stats *tfunc =
992         &sc->fw_stats_data->pf.tstorm_pf_statistics;
993     struct host_func_stats *fstats = &sc->func_stats;
994     struct bxe_eth_stats *estats = &sc->eth_stats;
995     struct bxe_eth_stats_old *estats_old = &sc->eth_stats_old;
996     int i;
997 
998     /* vfs stat counter is managed by pf */
999     if (IS_PF(sc) && bxe_storm_stats_validate_counters(sc)) {
1000         return (-EAGAIN);
1001     }
1002 
1003     estats->error_bytes_received_hi = 0;
1004     estats->error_bytes_received_lo = 0;
1005 
1006     for (i = 0; i < sc->num_queues; i++) {
1007         struct bxe_fastpath *fp = &sc->fp[i];
1008         struct tstorm_per_queue_stats *tclient =
1009             &sc->fw_stats_data->queue_stats[i].tstorm_queue_statistics;
1010         struct tstorm_per_queue_stats *old_tclient = &fp->old_tclient;
1011         struct ustorm_per_queue_stats *uclient =
1012             &sc->fw_stats_data->queue_stats[i].ustorm_queue_statistics;
1013         struct ustorm_per_queue_stats *old_uclient = &fp->old_uclient;
1014         struct xstorm_per_queue_stats *xclient =
1015             &sc->fw_stats_data->queue_stats[i].xstorm_queue_statistics;
1016         struct xstorm_per_queue_stats *old_xclient = &fp->old_xclient;
1017         struct bxe_eth_q_stats *qstats = &fp->eth_q_stats;
1018         struct bxe_eth_q_stats_old *qstats_old = &fp->eth_q_stats_old;
1019 
1020         uint32_t diff;
1021 
1022         BLOGD(sc, DBG_STATS,
1023               "queue[%d]: ucast_sent 0x%x bcast_sent 0x%x mcast_sent 0x%x\n",
1024               i, xclient->ucast_pkts_sent, xclient->bcast_pkts_sent,
1025               xclient->mcast_pkts_sent);
1026 
1027         BLOGD(sc, DBG_STATS, "---------------\n");
1028 
1029         UPDATE_QSTAT(tclient->rcv_bcast_bytes,
1030                      total_broadcast_bytes_received);
1031         UPDATE_QSTAT(tclient->rcv_mcast_bytes,
1032                      total_multicast_bytes_received);
1033         UPDATE_QSTAT(tclient->rcv_ucast_bytes,
1034                      total_unicast_bytes_received);
1035 
1036         /*
1037          * sum to total_bytes_received all
1038          * unicast/multicast/broadcast
1039          */
1040         qstats->total_bytes_received_hi =
1041             qstats->total_broadcast_bytes_received_hi;
1042         qstats->total_bytes_received_lo =
1043             qstats->total_broadcast_bytes_received_lo;
1044 
1045         ADD_64(qstats->total_bytes_received_hi,
1046                qstats->total_multicast_bytes_received_hi,
1047                qstats->total_bytes_received_lo,
1048                qstats->total_multicast_bytes_received_lo);
1049 
1050         ADD_64(qstats->total_bytes_received_hi,
1051                qstats->total_unicast_bytes_received_hi,
1052                qstats->total_bytes_received_lo,
1053                qstats->total_unicast_bytes_received_lo);
1054 
1055         qstats->valid_bytes_received_hi = qstats->total_bytes_received_hi;
1056         qstats->valid_bytes_received_lo = qstats->total_bytes_received_lo;
1057 
1058         UPDATE_EXTEND_TSTAT(rcv_ucast_pkts, total_unicast_packets_received);
1059         UPDATE_EXTEND_TSTAT(rcv_mcast_pkts, total_multicast_packets_received);
1060         UPDATE_EXTEND_TSTAT(rcv_bcast_pkts, total_broadcast_packets_received);
1061         UPDATE_EXTEND_E_TSTAT(pkts_too_big_discard,
1062                               etherstatsoverrsizepkts, 32);
1063         UPDATE_EXTEND_E_TSTAT(no_buff_discard, no_buff_discard, 16);
1064 
1065         SUB_EXTEND_USTAT(ucast_no_buff_pkts, total_unicast_packets_received);
1066         SUB_EXTEND_USTAT(mcast_no_buff_pkts,
1067                          total_multicast_packets_received);
1068         SUB_EXTEND_USTAT(bcast_no_buff_pkts,
1069                          total_broadcast_packets_received);
1070         UPDATE_EXTEND_E_USTAT(ucast_no_buff_pkts, no_buff_discard);
1071         UPDATE_EXTEND_E_USTAT(mcast_no_buff_pkts, no_buff_discard);
1072         UPDATE_EXTEND_E_USTAT(bcast_no_buff_pkts, no_buff_discard);
1073 
1074         UPDATE_QSTAT(xclient->bcast_bytes_sent,
1075                      total_broadcast_bytes_transmitted);
1076         UPDATE_QSTAT(xclient->mcast_bytes_sent,
1077                      total_multicast_bytes_transmitted);
1078         UPDATE_QSTAT(xclient->ucast_bytes_sent,
1079                      total_unicast_bytes_transmitted);
1080 
1081         /*
1082          * sum to total_bytes_transmitted all
1083          * unicast/multicast/broadcast
1084          */
1085         qstats->total_bytes_transmitted_hi =
1086             qstats->total_unicast_bytes_transmitted_hi;
1087         qstats->total_bytes_transmitted_lo =
1088             qstats->total_unicast_bytes_transmitted_lo;
1089 
1090         ADD_64(qstats->total_bytes_transmitted_hi,
1091                qstats->total_broadcast_bytes_transmitted_hi,
1092                qstats->total_bytes_transmitted_lo,
1093                qstats->total_broadcast_bytes_transmitted_lo);
1094 
1095         ADD_64(qstats->total_bytes_transmitted_hi,
1096                qstats->total_multicast_bytes_transmitted_hi,
1097                qstats->total_bytes_transmitted_lo,
1098                qstats->total_multicast_bytes_transmitted_lo);
1099 
1100         UPDATE_EXTEND_XSTAT(ucast_pkts_sent,
1101                             total_unicast_packets_transmitted);
1102         UPDATE_EXTEND_XSTAT(mcast_pkts_sent,
1103                             total_multicast_packets_transmitted);
1104         UPDATE_EXTEND_XSTAT(bcast_pkts_sent,
1105                             total_broadcast_packets_transmitted);
1106 
1107         UPDATE_EXTEND_TSTAT(checksum_discard,
1108                             total_packets_received_checksum_discarded);
1109         UPDATE_EXTEND_TSTAT(ttl0_discard,
1110                             total_packets_received_ttl0_discarded);
1111 
1112         UPDATE_EXTEND_XSTAT(error_drop_pkts,
1113                             total_transmitted_dropped_packets_error);
1114 
1115         /* TPA aggregations completed */
1116         UPDATE_EXTEND_E_USTAT(coalesced_events, total_tpa_aggregations);
1117         /* Number of network frames aggregated by TPA */
1118         UPDATE_EXTEND_E_USTAT(coalesced_pkts, total_tpa_aggregated_frames);
1119         /* Total number of bytes in completed TPA aggregations */
1120         UPDATE_QSTAT(uclient->coalesced_bytes, total_tpa_bytes);
1121 
1122         UPDATE_ESTAT_QSTAT_64(total_tpa_bytes);
1123 
1124         UPDATE_FSTAT_QSTAT(total_bytes_received);
1125         UPDATE_FSTAT_QSTAT(total_bytes_transmitted);
1126         UPDATE_FSTAT_QSTAT(total_unicast_packets_received);
1127         UPDATE_FSTAT_QSTAT(total_multicast_packets_received);
1128         UPDATE_FSTAT_QSTAT(total_broadcast_packets_received);
1129         UPDATE_FSTAT_QSTAT(total_unicast_packets_transmitted);
1130         UPDATE_FSTAT_QSTAT(total_multicast_packets_transmitted);
1131         UPDATE_FSTAT_QSTAT(total_broadcast_packets_transmitted);
1132         UPDATE_FSTAT_QSTAT(valid_bytes_received);
1133     }
1134 
1135     ADD_64(estats->total_bytes_received_hi,
1136            estats->rx_stat_ifhcinbadoctets_hi,
1137            estats->total_bytes_received_lo,
1138            estats->rx_stat_ifhcinbadoctets_lo);
1139 
1140     ADD_64_LE(estats->total_bytes_received_hi,
1141               tfunc->rcv_error_bytes.hi,
1142               estats->total_bytes_received_lo,
1143               tfunc->rcv_error_bytes.lo);
1144 
1145     ADD_64_LE(estats->error_bytes_received_hi,
1146               tfunc->rcv_error_bytes.hi,
1147               estats->error_bytes_received_lo,
1148               tfunc->rcv_error_bytes.lo);
1149 
1150     UPDATE_ESTAT(etherstatsoverrsizepkts, rx_stat_dot3statsframestoolong);
1151 
1152     ADD_64(estats->error_bytes_received_hi,
1153            estats->rx_stat_ifhcinbadoctets_hi,
1154            estats->error_bytes_received_lo,
1155            estats->rx_stat_ifhcinbadoctets_lo);
1156 
1157     if (sc->port.pmf) {
1158         struct bxe_fw_port_stats_old *fwstats = &sc->fw_stats_old;
1159         UPDATE_FW_STAT(mac_filter_discard);
1160         UPDATE_FW_STAT(mf_tag_discard);
1161         UPDATE_FW_STAT(brb_truncate_discard);
1162         UPDATE_FW_STAT(mac_discard);
1163     }
1164 
1165     fstats->host_func_stats_start = ++fstats->host_func_stats_end;
1166 
1167     sc->stats_pending = 0;
1168 
1169     return (0);
1170 }
1171 
1172 static void
1173 bxe_net_stats_update(struct bxe_softc *sc)
1174 {
1175 
1176     for (int i = 0; i < sc->num_queues; i++)
1177         if_inc_counter(sc->ifp, IFCOUNTER_IQDROPS,
1178 	    le32toh(sc->fp[i].old_tclient.checksum_discard));
1179 }
1180 
1181 uint64_t
1182 bxe_get_counter(if_t ifp, ift_counter cnt)
1183 {
1184 	struct bxe_softc *sc;
1185 	struct bxe_eth_stats *estats;
1186 
1187 	sc = if_getsoftc(ifp);
1188 	estats = &sc->eth_stats;
1189 
1190 	switch (cnt) {
1191 	case IFCOUNTER_IPACKETS:
1192 		return (bxe_hilo(&estats->total_unicast_packets_received_hi) +
1193 		    bxe_hilo(&estats->total_multicast_packets_received_hi) +
1194 		    bxe_hilo(&estats->total_broadcast_packets_received_hi));
1195 	case IFCOUNTER_OPACKETS:
1196 		return (bxe_hilo(&estats->total_unicast_packets_transmitted_hi) +
1197 		    bxe_hilo(&estats->total_multicast_packets_transmitted_hi) +
1198 		    bxe_hilo(&estats->total_broadcast_packets_transmitted_hi));
1199 	case IFCOUNTER_IBYTES:
1200 		return (bxe_hilo(&estats->total_bytes_received_hi));
1201 	case IFCOUNTER_OBYTES:
1202 		return (bxe_hilo(&estats->total_bytes_transmitted_hi));
1203 	case IFCOUNTER_IERRORS:
1204 		return (bxe_hilo(&estats->rx_stat_etherstatsundersizepkts_hi) +
1205 		    bxe_hilo(&estats->etherstatsoverrsizepkts_hi) +
1206 		    bxe_hilo(&estats->brb_drop_hi) +
1207 		    bxe_hilo(&estats->brb_truncate_hi) +
1208 		    bxe_hilo(&estats->rx_stat_dot3statsfcserrors_hi) +
1209 		    bxe_hilo(&estats->rx_stat_dot3statsalignmenterrors_hi) +
1210 		    bxe_hilo(&estats->no_buff_discard_hi));
1211 	case IFCOUNTER_OERRORS:
1212 		return (bxe_hilo(&estats->rx_stat_dot3statscarriersenseerrors_hi) +
1213 		    bxe_hilo(&estats->tx_stat_dot3statsinternalmactransmiterrors_hi));
1214 	case IFCOUNTER_IMCASTS:
1215 		return (bxe_hilo(&estats->total_multicast_packets_received_hi));
1216 	case IFCOUNTER_COLLISIONS:
1217 		return (bxe_hilo(&estats->tx_stat_etherstatscollisions_hi) +
1218 		    bxe_hilo(&estats->tx_stat_dot3statslatecollisions_hi) +
1219 		    bxe_hilo(&estats->tx_stat_dot3statsexcessivecollisions_hi));
1220 	default:
1221 		return (if_get_counter_default(ifp, cnt));
1222 	}
1223 }
1224 
1225 static void
1226 bxe_drv_stats_update(struct bxe_softc *sc)
1227 {
1228     struct bxe_eth_stats *estats = &sc->eth_stats;
1229     int i;
1230 
1231     for (i = 0; i < sc->num_queues; i++) {
1232         struct bxe_eth_q_stats *qstats = &sc->fp[i].eth_q_stats;
1233         struct bxe_eth_q_stats_old *qstats_old = &sc->fp[i].eth_q_stats_old;
1234 
1235         UPDATE_ESTAT_QSTAT(rx_calls);
1236         UPDATE_ESTAT_QSTAT(rx_pkts);
1237         UPDATE_ESTAT_QSTAT(rx_tpa_pkts);
1238         UPDATE_ESTAT_QSTAT(rx_erroneous_jumbo_sge_pkts);
1239         UPDATE_ESTAT_QSTAT(rx_bxe_service_rxsgl);
1240         UPDATE_ESTAT_QSTAT(rx_jumbo_sge_pkts);
1241         UPDATE_ESTAT_QSTAT(rx_soft_errors);
1242         UPDATE_ESTAT_QSTAT(rx_hw_csum_errors);
1243         UPDATE_ESTAT_QSTAT(rx_ofld_frames_csum_ip);
1244         UPDATE_ESTAT_QSTAT(rx_ofld_frames_csum_tcp_udp);
1245         UPDATE_ESTAT_QSTAT(rx_budget_reached);
1246         UPDATE_ESTAT_QSTAT(tx_pkts);
1247         UPDATE_ESTAT_QSTAT(tx_soft_errors);
1248         UPDATE_ESTAT_QSTAT(tx_ofld_frames_csum_ip);
1249         UPDATE_ESTAT_QSTAT(tx_ofld_frames_csum_tcp);
1250         UPDATE_ESTAT_QSTAT(tx_ofld_frames_csum_udp);
1251         UPDATE_ESTAT_QSTAT(tx_ofld_frames_lso);
1252         UPDATE_ESTAT_QSTAT(tx_ofld_frames_lso_hdr_splits);
1253         UPDATE_ESTAT_QSTAT(tx_encap_failures);
1254         UPDATE_ESTAT_QSTAT(tx_hw_queue_full);
1255         UPDATE_ESTAT_QSTAT(tx_hw_max_queue_depth);
1256         UPDATE_ESTAT_QSTAT(tx_dma_mapping_failure);
1257         UPDATE_ESTAT_QSTAT(tx_max_drbr_queue_depth);
1258         UPDATE_ESTAT_QSTAT(tx_window_violation_std);
1259         UPDATE_ESTAT_QSTAT(tx_window_violation_tso);
1260         //UPDATE_ESTAT_QSTAT(tx_unsupported_tso_request_ipv6);
1261         //UPDATE_ESTAT_QSTAT(tx_unsupported_tso_request_not_tcp);
1262         UPDATE_ESTAT_QSTAT(tx_chain_lost_mbuf);
1263         UPDATE_ESTAT_QSTAT(tx_frames_deferred);
1264         UPDATE_ESTAT_QSTAT(tx_queue_xoff);
1265 
1266         /* mbuf driver statistics */
1267         UPDATE_ESTAT_QSTAT(mbuf_defrag_attempts);
1268         UPDATE_ESTAT_QSTAT(mbuf_defrag_failures);
1269         UPDATE_ESTAT_QSTAT(mbuf_rx_bd_alloc_failed);
1270         UPDATE_ESTAT_QSTAT(mbuf_rx_bd_mapping_failed);
1271         UPDATE_ESTAT_QSTAT(mbuf_rx_tpa_alloc_failed);
1272         UPDATE_ESTAT_QSTAT(mbuf_rx_tpa_mapping_failed);
1273         UPDATE_ESTAT_QSTAT(mbuf_rx_sge_alloc_failed);
1274         UPDATE_ESTAT_QSTAT(mbuf_rx_sge_mapping_failed);
1275 
1276         /* track the number of allocated mbufs */
1277         UPDATE_ESTAT_QSTAT(mbuf_alloc_tx);
1278         UPDATE_ESTAT_QSTAT(mbuf_alloc_rx);
1279         UPDATE_ESTAT_QSTAT(mbuf_alloc_sge);
1280         UPDATE_ESTAT_QSTAT(mbuf_alloc_tpa);
1281     }
1282 }
1283 
1284 static uint8_t
1285 bxe_edebug_stats_stopped(struct bxe_softc *sc)
1286 {
1287     uint32_t val;
1288 
1289     if (SHMEM2_HAS(sc, edebug_driver_if[1])) {
1290         val = SHMEM2_RD(sc, edebug_driver_if[1]);
1291 
1292         if (val == EDEBUG_DRIVER_IF_OP_CODE_DISABLE_STAT) {
1293             return (TRUE);
1294         }
1295     }
1296 
1297     return (FALSE);
1298 }
1299 
1300 static void
1301 bxe_stats_update(struct bxe_softc *sc)
1302 {
1303     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
1304 
1305     if (bxe_edebug_stats_stopped(sc)) {
1306         return;
1307     }
1308 
1309     if (IS_PF(sc)) {
1310         if (*stats_comp != DMAE_COMP_VAL) {
1311             return;
1312         }
1313 
1314         if (sc->port.pmf) {
1315             bxe_hw_stats_update(sc);
1316         }
1317 
1318         if (bxe_storm_stats_update(sc)) {
1319             if (sc->stats_pending++ == 3) {
1320 		if (if_getdrvflags(sc->ifp) & IFF_DRV_RUNNING) {
1321 		    BLOGE(sc, "Storm stats not updated for 3 times, resetting\n");
1322 		    BXE_SET_ERROR_BIT(sc, BXE_ERR_STATS_TO);
1323 		    taskqueue_enqueue_timeout(taskqueue_thread,
1324                             &sc->sp_err_timeout_task, hz/10);
1325 		}
1326             }
1327             return;
1328         }
1329     } else {
1330         /*
1331          * VF doesn't collect HW statistics, and doesn't get completions,
1332          * performs only update.
1333          */
1334         bxe_storm_stats_update(sc);
1335     }
1336 
1337     bxe_net_stats_update(sc);
1338     bxe_drv_stats_update(sc);
1339 
1340     /* vf is done */
1341     if (IS_VF(sc)) {
1342         return;
1343     }
1344 
1345     bxe_hw_stats_post(sc);
1346     bxe_storm_stats_post(sc);
1347 }
1348 
1349 static void
1350 bxe_port_stats_stop(struct bxe_softc *sc)
1351 {
1352     struct dmae_cmd *dmae;
1353     uint32_t opcode;
1354     int loader_idx = PMF_DMAE_C(sc);
1355     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
1356 
1357     sc->executer_idx = 0;
1358 
1359     opcode = bxe_dmae_opcode(sc, DMAE_SRC_PCI, DMAE_DST_GRC, FALSE, 0);
1360 
1361     if (sc->port.port_stx) {
1362         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
1363 
1364         if (sc->func_stx) {
1365             dmae->opcode = bxe_dmae_opcode_add_comp(opcode, DMAE_COMP_GRC);
1366         } else {
1367             dmae->opcode = bxe_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
1368         }
1369 
1370         dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, port_stats));
1371         dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, port_stats));
1372         dmae->dst_addr_lo = sc->port.port_stx >> 2;
1373         dmae->dst_addr_hi = 0;
1374         dmae->len = bxe_get_port_stats_dma_len(sc);
1375         if (sc->func_stx) {
1376             dmae->comp_addr_lo = (dmae_reg_go_c[loader_idx] >> 2);
1377             dmae->comp_addr_hi = 0;
1378             dmae->comp_val = 1;
1379         } else {
1380             dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
1381             dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
1382             dmae->comp_val = DMAE_COMP_VAL;
1383 
1384             *stats_comp = 0;
1385         }
1386     }
1387 
1388     if (sc->func_stx) {
1389         dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
1390         dmae->opcode = bxe_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
1391         dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, func_stats));
1392         dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, func_stats));
1393         dmae->dst_addr_lo = (sc->func_stx >> 2);
1394         dmae->dst_addr_hi = 0;
1395         dmae->len = (sizeof(struct host_func_stats) >> 2);
1396         dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
1397         dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
1398         dmae->comp_val = DMAE_COMP_VAL;
1399 
1400         *stats_comp = 0;
1401     }
1402 }
1403 
1404 static void
1405 bxe_stats_stop(struct bxe_softc *sc)
1406 {
1407     uint8_t update = FALSE;
1408 
1409     bxe_stats_comp(sc);
1410 
1411     if (sc->port.pmf) {
1412         update = bxe_hw_stats_update(sc) == 0;
1413     }
1414 
1415     update |= bxe_storm_stats_update(sc) == 0;
1416 
1417     if (update) {
1418         bxe_net_stats_update(sc);
1419 
1420         if (sc->port.pmf) {
1421             bxe_port_stats_stop(sc);
1422         }
1423 
1424         bxe_hw_stats_post(sc);
1425         bxe_stats_comp(sc);
1426     }
1427 }
1428 
1429 static void
1430 bxe_stats_do_nothing(struct bxe_softc *sc)
1431 {
1432     return;
1433 }
1434 
1435 static const struct {
1436     void (*action)(struct bxe_softc *sc);
1437     enum bxe_stats_state next_state;
1438 } bxe_stats_stm[STATS_STATE_MAX][STATS_EVENT_MAX] = {
1439     {
1440     /* DISABLED PMF */ { bxe_stats_pmf_update, STATS_STATE_DISABLED },
1441     /*      LINK_UP */ { bxe_stats_start,      STATS_STATE_ENABLED },
1442     /*      UPDATE  */ { bxe_stats_do_nothing, STATS_STATE_DISABLED },
1443     /*      STOP    */ { bxe_stats_do_nothing, STATS_STATE_DISABLED }
1444     },
1445     {
1446     /* ENABLED  PMF */ { bxe_stats_pmf_start,  STATS_STATE_ENABLED },
1447     /*      LINK_UP */ { bxe_stats_restart,    STATS_STATE_ENABLED },
1448     /*      UPDATE  */ { bxe_stats_update,     STATS_STATE_ENABLED },
1449     /*      STOP    */ { bxe_stats_stop,       STATS_STATE_DISABLED }
1450     }
1451 };
1452 
1453 void bxe_stats_handle(struct bxe_softc     *sc,
1454                       enum bxe_stats_event event)
1455 {
1456     enum bxe_stats_state state;
1457 
1458     if (__predict_false(sc->panic)) {
1459         return;
1460     }
1461 
1462     BXE_STATS_LOCK(sc);
1463     state = sc->stats_state;
1464     sc->stats_state = bxe_stats_stm[state][event].next_state;
1465     BXE_STATS_UNLOCK(sc);
1466 
1467     bxe_stats_stm[state][event].action(sc);
1468 
1469     if (event != STATS_EVENT_UPDATE) {
1470         BLOGD(sc, DBG_STATS,
1471               "state %d -> event %d -> state %d\n",
1472               state, event, sc->stats_state);
1473     }
1474 }
1475 
1476 static void
1477 bxe_port_stats_base_init(struct bxe_softc *sc)
1478 {
1479     struct dmae_cmd *dmae;
1480     uint32_t *stats_comp = BXE_SP(sc, stats_comp);
1481 
1482     /* sanity */
1483     if (!sc->port.pmf || !sc->port.port_stx) {
1484         BLOGE(sc, "BUG!\n");
1485         return;
1486     }
1487 
1488     sc->executer_idx = 0;
1489 
1490     dmae = BXE_SP(sc, dmae[sc->executer_idx++]);
1491     dmae->opcode = bxe_dmae_opcode(sc, DMAE_SRC_PCI, DMAE_DST_GRC,
1492                                    TRUE, DMAE_COMP_PCI);
1493     dmae->src_addr_lo = U64_LO(BXE_SP_MAPPING(sc, port_stats));
1494     dmae->src_addr_hi = U64_HI(BXE_SP_MAPPING(sc, port_stats));
1495     dmae->dst_addr_lo = (sc->port.port_stx >> 2);
1496     dmae->dst_addr_hi = 0;
1497     dmae->len = bxe_get_port_stats_dma_len(sc);
1498     dmae->comp_addr_lo = U64_LO(BXE_SP_MAPPING(sc, stats_comp));
1499     dmae->comp_addr_hi = U64_HI(BXE_SP_MAPPING(sc, stats_comp));
1500     dmae->comp_val = DMAE_COMP_VAL;
1501 
1502     *stats_comp = 0;
1503     bxe_hw_stats_post(sc);
1504     bxe_stats_comp(sc);
1505 }
1506 
1507 /*
1508  * This function will prepare the statistics ramrod data the way
1509  * we will only have to increment the statistics counter and
1510  * send the ramrod each time we have to.
1511  */
1512 static void
1513 bxe_prep_fw_stats_req(struct bxe_softc *sc)
1514 {
1515     int i;
1516     int first_queue_query_index;
1517     struct stats_query_header *stats_hdr = &sc->fw_stats_req->hdr;
1518     bus_addr_t cur_data_offset;
1519     struct stats_query_entry *cur_query_entry;
1520 
1521     stats_hdr->cmd_num = sc->fw_stats_num;
1522     stats_hdr->drv_stats_counter = 0;
1523 
1524     /*
1525      * The storm_counters struct contains the counters of completed
1526      * statistics requests per storm which are incremented by FW
1527      * each time it completes hadning a statistics ramrod. We will
1528      * check these counters in the timer handler and discard a
1529      * (statistics) ramrod completion.
1530      */
1531     cur_data_offset = (sc->fw_stats_data_mapping +
1532                        offsetof(struct bxe_fw_stats_data, storm_counters));
1533 
1534     stats_hdr->stats_counters_addrs.hi = htole32(U64_HI(cur_data_offset));
1535     stats_hdr->stats_counters_addrs.lo = htole32(U64_LO(cur_data_offset));
1536 
1537     /*
1538      * Prepare the first stats ramrod (will be completed with
1539      * the counters equal to zero) - init counters to somethig different.
1540      */
1541     memset(&sc->fw_stats_data->storm_counters, 0xff,
1542            sizeof(struct stats_counter));
1543 
1544     /**** Port FW statistics data ****/
1545     cur_data_offset = (sc->fw_stats_data_mapping +
1546                        offsetof(struct bxe_fw_stats_data, port));
1547 
1548     cur_query_entry = &sc->fw_stats_req->query[BXE_PORT_QUERY_IDX];
1549 
1550     cur_query_entry->kind = STATS_TYPE_PORT;
1551     /* For port query index is a DONT CARE */
1552     cur_query_entry->index = SC_PORT(sc);
1553     /* For port query funcID is a DONT CARE */
1554     cur_query_entry->funcID = htole16(SC_FUNC(sc));
1555     cur_query_entry->address.hi = htole32(U64_HI(cur_data_offset));
1556     cur_query_entry->address.lo = htole32(U64_LO(cur_data_offset));
1557 
1558     /**** PF FW statistics data ****/
1559     cur_data_offset = (sc->fw_stats_data_mapping +
1560                        offsetof(struct bxe_fw_stats_data, pf));
1561 
1562     cur_query_entry = &sc->fw_stats_req->query[BXE_PF_QUERY_IDX];
1563 
1564     cur_query_entry->kind = STATS_TYPE_PF;
1565     /* For PF query index is a DONT CARE */
1566     cur_query_entry->index = SC_PORT(sc);
1567     cur_query_entry->funcID = htole16(SC_FUNC(sc));
1568     cur_query_entry->address.hi = htole32(U64_HI(cur_data_offset));
1569     cur_query_entry->address.lo = htole32(U64_LO(cur_data_offset));
1570 
1571     /**** Clients' queries ****/
1572     cur_data_offset = (sc->fw_stats_data_mapping +
1573                        offsetof(struct bxe_fw_stats_data, queue_stats));
1574 
1575     /*
1576      * First queue query index depends whether FCoE offloaded request will
1577      * be included in the ramrod
1578      */
1579     first_queue_query_index = (BXE_FIRST_QUEUE_QUERY_IDX - 1);
1580 
1581     for (i = 0; i < sc->num_queues; i++) {
1582         cur_query_entry =
1583             &sc->fw_stats_req->query[first_queue_query_index + i];
1584 
1585         cur_query_entry->kind = STATS_TYPE_QUEUE;
1586         cur_query_entry->index = bxe_stats_id(&sc->fp[i]);
1587         cur_query_entry->funcID = htole16(SC_FUNC(sc));
1588         cur_query_entry->address.hi = htole32(U64_HI(cur_data_offset));
1589         cur_query_entry->address.lo = htole32(U64_LO(cur_data_offset));
1590 
1591         cur_data_offset += sizeof(struct per_queue_stats);
1592     }
1593 }
1594 
1595 void
1596 bxe_stats_init(struct bxe_softc *sc)
1597 {
1598     int /*abs*/port = SC_PORT(sc);
1599     int mb_idx = SC_FW_MB_IDX(sc);
1600     int i;
1601 
1602     sc->stats_pending = 0;
1603     sc->executer_idx = 0;
1604     sc->stats_counter = 0;
1605 
1606     /* port and func stats for management */
1607     if (!BXE_NOMCP(sc)) {
1608         sc->port.port_stx = SHMEM_RD(sc, port_mb[port].port_stx);
1609         sc->func_stx = SHMEM_RD(sc, func_mb[mb_idx].fw_mb_param);
1610     } else {
1611         sc->port.port_stx = 0;
1612         sc->func_stx = 0;
1613     }
1614 
1615     BLOGD(sc, DBG_STATS, "port_stx 0x%x func_stx 0x%x\n",
1616           sc->port.port_stx, sc->func_stx);
1617 
1618     /* pmf should retrieve port statistics from SP on a non-init*/
1619     if (!sc->stats_init && sc->port.pmf && sc->port.port_stx) {
1620         bxe_stats_handle(sc, STATS_EVENT_PMF);
1621     }
1622 
1623     port = SC_PORT(sc);
1624     /* port stats */
1625     memset(&(sc->port.old_nig_stats), 0, sizeof(struct nig_stats));
1626     sc->port.old_nig_stats.brb_discard =
1627         REG_RD(sc, NIG_REG_STAT0_BRB_DISCARD + port*0x38);
1628     sc->port.old_nig_stats.brb_truncate =
1629         REG_RD(sc, NIG_REG_STAT0_BRB_TRUNCATE + port*0x38);
1630     if (!CHIP_IS_E3(sc)) {
1631         REG_RD_DMAE(sc, NIG_REG_STAT0_EGRESS_MAC_PKT0 + port*0x50,
1632                     &(sc->port.old_nig_stats.egress_mac_pkt0_lo), 2);
1633         REG_RD_DMAE(sc, NIG_REG_STAT0_EGRESS_MAC_PKT1 + port*0x50,
1634                     &(sc->port.old_nig_stats.egress_mac_pkt1_lo), 2);
1635     }
1636 
1637     /* function stats */
1638     for (i = 0; i < sc->num_queues; i++) {
1639         memset(&sc->fp[i].old_tclient, 0, sizeof(sc->fp[i].old_tclient));
1640         memset(&sc->fp[i].old_uclient, 0, sizeof(sc->fp[i].old_uclient));
1641         memset(&sc->fp[i].old_xclient, 0, sizeof(sc->fp[i].old_xclient));
1642         if (sc->stats_init) {
1643             memset(&sc->fp[i].eth_q_stats, 0,
1644                    sizeof(sc->fp[i].eth_q_stats));
1645             memset(&sc->fp[i].eth_q_stats_old, 0,
1646                    sizeof(sc->fp[i].eth_q_stats_old));
1647         }
1648     }
1649 
1650     /* prepare statistics ramrod data */
1651     bxe_prep_fw_stats_req(sc);
1652 
1653     if (sc->stats_init) {
1654         memset(&sc->net_stats_old, 0, sizeof(sc->net_stats_old));
1655         memset(&sc->fw_stats_old, 0, sizeof(sc->fw_stats_old));
1656         memset(&sc->eth_stats_old, 0, sizeof(sc->eth_stats_old));
1657         memset(&sc->eth_stats, 0, sizeof(sc->eth_stats));
1658         memset(&sc->func_stats, 0, sizeof(sc->func_stats));
1659 
1660         /* Clean SP from previous statistics */
1661         if (sc->func_stx) {
1662             memset(BXE_SP(sc, func_stats), 0, sizeof(struct host_func_stats));
1663             bxe_func_stats_init(sc);
1664             bxe_hw_stats_post(sc);
1665             bxe_stats_comp(sc);
1666         }
1667     }
1668 
1669     sc->stats_state = STATS_STATE_DISABLED;
1670 
1671     if (sc->port.pmf && sc->port.port_stx) {
1672         bxe_port_stats_base_init(sc);
1673     }
1674 
1675     /* mark the end of statistics initialization */
1676     sc->stats_init = FALSE;
1677 }
1678 
1679 void
1680 bxe_save_statistics(struct bxe_softc *sc)
1681 {
1682     int i;
1683 
1684     /* save queue statistics */
1685     for (i = 0; i < sc->num_queues; i++) {
1686         struct bxe_fastpath *fp = &sc->fp[i];
1687         struct bxe_eth_q_stats *qstats = &fp->eth_q_stats;
1688         struct bxe_eth_q_stats_old *qstats_old = &fp->eth_q_stats_old;
1689 
1690         UPDATE_QSTAT_OLD(total_unicast_bytes_received_hi);
1691         UPDATE_QSTAT_OLD(total_unicast_bytes_received_lo);
1692         UPDATE_QSTAT_OLD(total_broadcast_bytes_received_hi);
1693         UPDATE_QSTAT_OLD(total_broadcast_bytes_received_lo);
1694         UPDATE_QSTAT_OLD(total_multicast_bytes_received_hi);
1695         UPDATE_QSTAT_OLD(total_multicast_bytes_received_lo);
1696         UPDATE_QSTAT_OLD(total_unicast_bytes_transmitted_hi);
1697         UPDATE_QSTAT_OLD(total_unicast_bytes_transmitted_lo);
1698         UPDATE_QSTAT_OLD(total_broadcast_bytes_transmitted_hi);
1699         UPDATE_QSTAT_OLD(total_broadcast_bytes_transmitted_lo);
1700         UPDATE_QSTAT_OLD(total_multicast_bytes_transmitted_hi);
1701         UPDATE_QSTAT_OLD(total_multicast_bytes_transmitted_lo);
1702         UPDATE_QSTAT_OLD(total_tpa_bytes_hi);
1703         UPDATE_QSTAT_OLD(total_tpa_bytes_lo);
1704     }
1705 
1706     /* store port firmware statistics */
1707     if (sc->port.pmf) {
1708         struct bxe_eth_stats *estats = &sc->eth_stats;
1709         struct bxe_fw_port_stats_old *fwstats = &sc->fw_stats_old;
1710         struct host_port_stats *pstats = BXE_SP(sc, port_stats);
1711 
1712         fwstats->pfc_frames_rx_hi = pstats->pfc_frames_rx_hi;
1713         fwstats->pfc_frames_rx_lo = pstats->pfc_frames_rx_lo;
1714         fwstats->pfc_frames_tx_hi = pstats->pfc_frames_tx_hi;
1715         fwstats->pfc_frames_tx_lo = pstats->pfc_frames_tx_lo;
1716 
1717         if (IS_MF(sc)) {
1718             UPDATE_FW_STAT_OLD(mac_filter_discard);
1719             UPDATE_FW_STAT_OLD(mf_tag_discard);
1720             UPDATE_FW_STAT_OLD(brb_truncate_discard);
1721             UPDATE_FW_STAT_OLD(mac_discard);
1722         }
1723     }
1724 }
1725 
1726 void
1727 bxe_afex_collect_stats(struct bxe_softc *sc,
1728                        void             *void_afex_stats,
1729                        uint32_t         stats_type)
1730 {
1731     int i;
1732     struct afex_stats *afex_stats = (struct afex_stats *)void_afex_stats;
1733     struct bxe_eth_stats *estats = &sc->eth_stats;
1734 
1735     memset(afex_stats, 0, sizeof(struct afex_stats));
1736 
1737     for (i = 0; i < sc->num_queues; i++) {
1738         struct bxe_eth_q_stats *qstats = &sc->fp[i].eth_q_stats;
1739 
1740         ADD_64(afex_stats->rx_unicast_bytes_hi,
1741                qstats->total_unicast_bytes_received_hi,
1742                afex_stats->rx_unicast_bytes_lo,
1743                qstats->total_unicast_bytes_received_lo);
1744 
1745         ADD_64(afex_stats->rx_broadcast_bytes_hi,
1746                qstats->total_broadcast_bytes_received_hi,
1747                afex_stats->rx_broadcast_bytes_lo,
1748                qstats->total_broadcast_bytes_received_lo);
1749 
1750         ADD_64(afex_stats->rx_multicast_bytes_hi,
1751                qstats->total_multicast_bytes_received_hi,
1752                afex_stats->rx_multicast_bytes_lo,
1753                qstats->total_multicast_bytes_received_lo);
1754 
1755         ADD_64(afex_stats->rx_unicast_frames_hi,
1756                qstats->total_unicast_packets_received_hi,
1757                afex_stats->rx_unicast_frames_lo,
1758                qstats->total_unicast_packets_received_lo);
1759 
1760         ADD_64(afex_stats->rx_broadcast_frames_hi,
1761                qstats->total_broadcast_packets_received_hi,
1762                afex_stats->rx_broadcast_frames_lo,
1763                qstats->total_broadcast_packets_received_lo);
1764 
1765         ADD_64(afex_stats->rx_multicast_frames_hi,
1766                qstats->total_multicast_packets_received_hi,
1767                afex_stats->rx_multicast_frames_lo,
1768                qstats->total_multicast_packets_received_lo);
1769 
1770         /*
1771          * sum to rx_frames_discarded all discarded
1772          * packets due to size, ttl0 and checksum
1773          */
1774         ADD_64(afex_stats->rx_frames_discarded_hi,
1775                qstats->total_packets_received_checksum_discarded_hi,
1776                afex_stats->rx_frames_discarded_lo,
1777                qstats->total_packets_received_checksum_discarded_lo);
1778 
1779         ADD_64(afex_stats->rx_frames_discarded_hi,
1780                qstats->total_packets_received_ttl0_discarded_hi,
1781                afex_stats->rx_frames_discarded_lo,
1782                qstats->total_packets_received_ttl0_discarded_lo);
1783 
1784         ADD_64(afex_stats->rx_frames_discarded_hi,
1785                qstats->etherstatsoverrsizepkts_hi,
1786                afex_stats->rx_frames_discarded_lo,
1787                qstats->etherstatsoverrsizepkts_lo);
1788 
1789         ADD_64(afex_stats->rx_frames_dropped_hi,
1790                qstats->no_buff_discard_hi,
1791                afex_stats->rx_frames_dropped_lo,
1792                qstats->no_buff_discard_lo);
1793 
1794         ADD_64(afex_stats->tx_unicast_bytes_hi,
1795                qstats->total_unicast_bytes_transmitted_hi,
1796                afex_stats->tx_unicast_bytes_lo,
1797                qstats->total_unicast_bytes_transmitted_lo);
1798 
1799         ADD_64(afex_stats->tx_broadcast_bytes_hi,
1800                qstats->total_broadcast_bytes_transmitted_hi,
1801                afex_stats->tx_broadcast_bytes_lo,
1802                qstats->total_broadcast_bytes_transmitted_lo);
1803 
1804         ADD_64(afex_stats->tx_multicast_bytes_hi,
1805                qstats->total_multicast_bytes_transmitted_hi,
1806                afex_stats->tx_multicast_bytes_lo,
1807                qstats->total_multicast_bytes_transmitted_lo);
1808 
1809         ADD_64(afex_stats->tx_unicast_frames_hi,
1810                qstats->total_unicast_packets_transmitted_hi,
1811                afex_stats->tx_unicast_frames_lo,
1812                qstats->total_unicast_packets_transmitted_lo);
1813 
1814         ADD_64(afex_stats->tx_broadcast_frames_hi,
1815                qstats->total_broadcast_packets_transmitted_hi,
1816                afex_stats->tx_broadcast_frames_lo,
1817                qstats->total_broadcast_packets_transmitted_lo);
1818 
1819         ADD_64(afex_stats->tx_multicast_frames_hi,
1820                qstats->total_multicast_packets_transmitted_hi,
1821                afex_stats->tx_multicast_frames_lo,
1822                qstats->total_multicast_packets_transmitted_lo);
1823 
1824         ADD_64(afex_stats->tx_frames_dropped_hi,
1825                qstats->total_transmitted_dropped_packets_error_hi,
1826                afex_stats->tx_frames_dropped_lo,
1827                qstats->total_transmitted_dropped_packets_error_lo);
1828     }
1829 
1830     /*
1831      * If port stats are requested, add them to the PMF
1832      * stats, as anyway they will be accumulated by the
1833      * MCP before sent to the switch
1834      */
1835     if ((sc->port.pmf) && (stats_type == VICSTATST_UIF_INDEX)) {
1836         ADD_64(afex_stats->rx_frames_dropped_hi,
1837                0,
1838                afex_stats->rx_frames_dropped_lo,
1839                estats->mac_filter_discard);
1840         ADD_64(afex_stats->rx_frames_dropped_hi,
1841                0,
1842                afex_stats->rx_frames_dropped_lo,
1843                estats->brb_truncate_discard);
1844         ADD_64(afex_stats->rx_frames_discarded_hi,
1845                0,
1846                afex_stats->rx_frames_discarded_lo,
1847                estats->mac_discard);
1848     }
1849 }
1850 
1851