2 * Copyright Gavin Shan, IBM Corporation 2016.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
10 #include <linux/module.h>
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/netdevice.h>
14 #include <linux/skbuff.h>
17 #include <net/net_namespace.h>
23 static int ncsi_validate_rsp_pkt(struct ncsi_request *nr,
24 unsigned short payload)
26 struct ncsi_rsp_pkt_hdr *h;
30 /* Check NCSI packet header. We don't need validate
31 * the packet type, which should have been checked
32 * before calling this function.
34 h = (struct ncsi_rsp_pkt_hdr *)skb_network_header(nr->rsp);
35 if (h->common.revision != NCSI_PKT_REVISION)
37 if (ntohs(h->common.length) != payload)
40 /* Check on code and reason */
41 if (ntohs(h->code) != NCSI_PKT_RSP_C_COMPLETED ||
42 ntohs(h->reason) != NCSI_PKT_RSP_R_NO_ERROR)
45 /* Validate checksum, which might be zeroes if the
46 * sender doesn't support checksum according to NCSI
49 pchecksum = (__be32 *)((void *)(h + 1) + payload - 4);
50 if (ntohl(*pchecksum) == 0)
53 checksum = ncsi_calculate_checksum((unsigned char *)h,
54 sizeof(*h) + payload - 4);
55 if (*pchecksum != htonl(checksum))
61 static int ncsi_rsp_handler_cis(struct ncsi_request *nr)
63 struct ncsi_rsp_pkt *rsp;
64 struct ncsi_dev_priv *ndp = nr->ndp;
65 struct ncsi_package *np;
66 struct ncsi_channel *nc;
69 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
70 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, &nc);
72 if (ndp->flags & NCSI_DEV_PROBED)
75 id = NCSI_CHANNEL_INDEX(rsp->rsp.common.channel);
76 nc = ncsi_add_channel(np, id);
79 return nc ? 0 : -ENODEV;
82 static int ncsi_rsp_handler_sp(struct ncsi_request *nr)
84 struct ncsi_rsp_pkt *rsp;
85 struct ncsi_dev_priv *ndp = nr->ndp;
86 struct ncsi_package *np;
89 /* Add the package if it's not existing. Otherwise,
90 * to change the state of its child channels.
92 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
93 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
96 if (ndp->flags & NCSI_DEV_PROBED)
99 id = NCSI_PACKAGE_INDEX(rsp->rsp.common.channel);
100 np = ncsi_add_package(ndp, id);
108 static int ncsi_rsp_handler_dp(struct ncsi_request *nr)
110 struct ncsi_rsp_pkt *rsp;
111 struct ncsi_dev_priv *ndp = nr->ndp;
112 struct ncsi_package *np;
113 struct ncsi_channel *nc;
116 /* Find the package */
117 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
118 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
123 /* Change state of all channels attached to the package */
124 NCSI_FOR_EACH_CHANNEL(np, nc) {
125 spin_lock_irqsave(&nc->lock, flags);
126 nc->state = NCSI_CHANNEL_INACTIVE;
127 spin_unlock_irqrestore(&nc->lock, flags);
133 static int ncsi_rsp_handler_ec(struct ncsi_request *nr)
135 struct ncsi_rsp_pkt *rsp;
136 struct ncsi_dev_priv *ndp = nr->ndp;
137 struct ncsi_channel *nc;
138 struct ncsi_channel_mode *ncm;
140 /* Find the package and channel */
141 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
142 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
147 ncm = &nc->modes[NCSI_MODE_ENABLE];
155 static int ncsi_rsp_handler_dc(struct ncsi_request *nr)
157 struct ncsi_rsp_pkt *rsp;
158 struct ncsi_dev_priv *ndp = nr->ndp;
159 struct ncsi_channel *nc;
160 struct ncsi_channel_mode *ncm;
163 ret = ncsi_validate_rsp_pkt(nr, 4);
167 /* Find the package and channel */
168 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
169 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
174 ncm = &nc->modes[NCSI_MODE_ENABLE];
182 static int ncsi_rsp_handler_rc(struct ncsi_request *nr)
184 struct ncsi_rsp_pkt *rsp;
185 struct ncsi_dev_priv *ndp = nr->ndp;
186 struct ncsi_channel *nc;
189 /* Find the package and channel */
190 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
191 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
196 /* Update state for the specified channel */
197 spin_lock_irqsave(&nc->lock, flags);
198 nc->state = NCSI_CHANNEL_INACTIVE;
199 spin_unlock_irqrestore(&nc->lock, flags);
204 static int ncsi_rsp_handler_ecnt(struct ncsi_request *nr)
206 struct ncsi_rsp_pkt *rsp;
207 struct ncsi_dev_priv *ndp = nr->ndp;
208 struct ncsi_channel *nc;
209 struct ncsi_channel_mode *ncm;
211 /* Find the package and channel */
212 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
213 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
218 ncm = &nc->modes[NCSI_MODE_TX_ENABLE];
226 static int ncsi_rsp_handler_dcnt(struct ncsi_request *nr)
228 struct ncsi_rsp_pkt *rsp;
229 struct ncsi_dev_priv *ndp = nr->ndp;
230 struct ncsi_channel *nc;
231 struct ncsi_channel_mode *ncm;
233 /* Find the package and channel */
234 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
235 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
240 ncm = &nc->modes[NCSI_MODE_TX_ENABLE];
248 static int ncsi_rsp_handler_ae(struct ncsi_request *nr)
250 struct ncsi_cmd_ae_pkt *cmd;
251 struct ncsi_rsp_pkt *rsp;
252 struct ncsi_dev_priv *ndp = nr->ndp;
253 struct ncsi_channel *nc;
254 struct ncsi_channel_mode *ncm;
256 /* Find the package and channel */
257 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
258 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
263 /* Check if the AEN has been enabled */
264 ncm = &nc->modes[NCSI_MODE_AEN];
268 /* Update to AEN configuration */
269 cmd = (struct ncsi_cmd_ae_pkt *)skb_network_header(nr->cmd);
271 ncm->data[0] = cmd->mc_id;
272 ncm->data[1] = ntohl(cmd->mode);
277 static int ncsi_rsp_handler_sl(struct ncsi_request *nr)
279 struct ncsi_cmd_sl_pkt *cmd;
280 struct ncsi_rsp_pkt *rsp;
281 struct ncsi_dev_priv *ndp = nr->ndp;
282 struct ncsi_channel *nc;
283 struct ncsi_channel_mode *ncm;
285 /* Find the package and channel */
286 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
287 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
292 cmd = (struct ncsi_cmd_sl_pkt *)skb_network_header(nr->cmd);
293 ncm = &nc->modes[NCSI_MODE_LINK];
294 ncm->data[0] = ntohl(cmd->mode);
295 ncm->data[1] = ntohl(cmd->oem_mode);
300 static int ncsi_rsp_handler_gls(struct ncsi_request *nr)
302 struct ncsi_rsp_gls_pkt *rsp;
303 struct ncsi_dev_priv *ndp = nr->ndp;
304 struct ncsi_channel *nc;
305 struct ncsi_channel_mode *ncm;
308 /* Find the package and channel */
309 rsp = (struct ncsi_rsp_gls_pkt *)skb_network_header(nr->rsp);
310 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
315 ncm = &nc->modes[NCSI_MODE_LINK];
316 ncm->data[2] = ntohl(rsp->status);
317 ncm->data[3] = ntohl(rsp->other);
318 ncm->data[4] = ntohl(rsp->oem_status);
320 if (nr->flags & NCSI_REQ_FLAG_EVENT_DRIVEN)
323 /* Reset the channel monitor if it has been enabled */
324 spin_lock_irqsave(&nc->lock, flags);
325 nc->monitor.state = NCSI_CHANNEL_MONITOR_START;
326 spin_unlock_irqrestore(&nc->lock, flags);
331 static int ncsi_rsp_handler_svf(struct ncsi_request *nr)
333 struct ncsi_cmd_svf_pkt *cmd;
334 struct ncsi_rsp_pkt *rsp;
335 struct ncsi_dev_priv *ndp = nr->ndp;
336 struct ncsi_channel *nc;
337 struct ncsi_channel_vlan_filter *ncf;
341 /* Find the package and channel */
342 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
343 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
348 cmd = (struct ncsi_cmd_svf_pkt *)skb_network_header(nr->cmd);
349 ncf = &nc->vlan_filter;
350 if (cmd->index > ncf->n_vids)
353 /* Add or remove the VLAN filter. Remember HW indexes from 1 */
354 spin_lock_irqsave(&nc->lock, flags);
355 bitmap = &ncf->bitmap;
356 if (!(cmd->enable & 0x1)) {
357 if (test_and_clear_bit(cmd->index - 1, bitmap))
358 ncf->vids[cmd->index - 1] = 0;
360 set_bit(cmd->index - 1, bitmap);
361 ncf->vids[cmd->index - 1] = ntohs(cmd->vlan);
363 spin_unlock_irqrestore(&nc->lock, flags);
368 static int ncsi_rsp_handler_ev(struct ncsi_request *nr)
370 struct ncsi_cmd_ev_pkt *cmd;
371 struct ncsi_rsp_pkt *rsp;
372 struct ncsi_dev_priv *ndp = nr->ndp;
373 struct ncsi_channel *nc;
374 struct ncsi_channel_mode *ncm;
376 /* Find the package and channel */
377 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
378 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
383 /* Check if VLAN mode has been enabled */
384 ncm = &nc->modes[NCSI_MODE_VLAN];
388 /* Update to VLAN mode */
389 cmd = (struct ncsi_cmd_ev_pkt *)skb_network_header(nr->cmd);
391 ncm->data[0] = ntohl(cmd->mode);
396 static int ncsi_rsp_handler_dv(struct ncsi_request *nr)
398 struct ncsi_rsp_pkt *rsp;
399 struct ncsi_dev_priv *ndp = nr->ndp;
400 struct ncsi_channel *nc;
401 struct ncsi_channel_mode *ncm;
403 /* Find the package and channel */
404 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
405 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
410 /* Check if VLAN mode has been enabled */
411 ncm = &nc->modes[NCSI_MODE_VLAN];
415 /* Update to VLAN mode */
420 static int ncsi_rsp_handler_sma(struct ncsi_request *nr)
422 struct ncsi_cmd_sma_pkt *cmd;
423 struct ncsi_rsp_pkt *rsp;
424 struct ncsi_dev_priv *ndp = nr->ndp;
425 struct ncsi_channel *nc;
426 struct ncsi_channel_mac_filter *ncf;
433 /* Find the package and channel */
434 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
435 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
440 /* According to NCSI spec 1.01, the mixed filter table
441 * isn't supported yet.
443 cmd = (struct ncsi_cmd_sma_pkt *)skb_network_header(nr->cmd);
444 enabled = cmd->at_e & 0x1;
445 ncf = &nc->mac_filter;
446 bitmap = &ncf->bitmap;
448 if (cmd->index > ncf->n_uc + ncf->n_mc + ncf->n_mixed)
451 index = (cmd->index - 1) * ETH_ALEN;
452 spin_lock_irqsave(&nc->lock, flags);
454 set_bit(cmd->index - 1, bitmap);
455 memcpy(&ncf->addrs[index], cmd->mac, ETH_ALEN);
457 clear_bit(cmd->index - 1, bitmap);
458 memset(&ncf->addrs[index], 0, ETH_ALEN);
460 spin_unlock_irqrestore(&nc->lock, flags);
465 static int ncsi_rsp_handler_ebf(struct ncsi_request *nr)
467 struct ncsi_cmd_ebf_pkt *cmd;
468 struct ncsi_rsp_pkt *rsp;
469 struct ncsi_dev_priv *ndp = nr->ndp;
470 struct ncsi_channel *nc;
471 struct ncsi_channel_mode *ncm;
473 /* Find the package and channel */
474 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
475 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc);
479 /* Check if broadcast filter has been enabled */
480 ncm = &nc->modes[NCSI_MODE_BC];
484 /* Update to broadcast filter mode */
485 cmd = (struct ncsi_cmd_ebf_pkt *)skb_network_header(nr->cmd);
487 ncm->data[0] = ntohl(cmd->mode);
492 static int ncsi_rsp_handler_dbf(struct ncsi_request *nr)
494 struct ncsi_rsp_pkt *rsp;
495 struct ncsi_dev_priv *ndp = nr->ndp;
496 struct ncsi_channel *nc;
497 struct ncsi_channel_mode *ncm;
499 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
500 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
505 /* Check if broadcast filter isn't enabled */
506 ncm = &nc->modes[NCSI_MODE_BC];
510 /* Update to broadcast filter mode */
517 static int ncsi_rsp_handler_egmf(struct ncsi_request *nr)
519 struct ncsi_cmd_egmf_pkt *cmd;
520 struct ncsi_rsp_pkt *rsp;
521 struct ncsi_dev_priv *ndp = nr->ndp;
522 struct ncsi_channel *nc;
523 struct ncsi_channel_mode *ncm;
525 /* Find the channel */
526 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
527 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
532 /* Check if multicast filter has been enabled */
533 ncm = &nc->modes[NCSI_MODE_MC];
537 /* Update to multicast filter mode */
538 cmd = (struct ncsi_cmd_egmf_pkt *)skb_network_header(nr->cmd);
540 ncm->data[0] = ntohl(cmd->mode);
545 static int ncsi_rsp_handler_dgmf(struct ncsi_request *nr)
547 struct ncsi_rsp_pkt *rsp;
548 struct ncsi_dev_priv *ndp = nr->ndp;
549 struct ncsi_channel *nc;
550 struct ncsi_channel_mode *ncm;
552 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
553 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
558 /* Check if multicast filter has been enabled */
559 ncm = &nc->modes[NCSI_MODE_MC];
563 /* Update to multicast filter mode */
570 static int ncsi_rsp_handler_snfc(struct ncsi_request *nr)
572 struct ncsi_cmd_snfc_pkt *cmd;
573 struct ncsi_rsp_pkt *rsp;
574 struct ncsi_dev_priv *ndp = nr->ndp;
575 struct ncsi_channel *nc;
576 struct ncsi_channel_mode *ncm;
578 /* Find the channel */
579 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
580 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
585 /* Check if flow control has been enabled */
586 ncm = &nc->modes[NCSI_MODE_FC];
590 /* Update to flow control mode */
591 cmd = (struct ncsi_cmd_snfc_pkt *)skb_network_header(nr->cmd);
593 ncm->data[0] = cmd->mode;
598 static int ncsi_rsp_handler_gvi(struct ncsi_request *nr)
600 struct ncsi_rsp_gvi_pkt *rsp;
601 struct ncsi_dev_priv *ndp = nr->ndp;
602 struct ncsi_channel *nc;
603 struct ncsi_channel_version *ncv;
606 /* Find the channel */
607 rsp = (struct ncsi_rsp_gvi_pkt *)skb_network_header(nr->rsp);
608 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
613 /* Update to channel's version info */
615 ncv->version = ntohl(rsp->ncsi_version);
616 ncv->alpha2 = rsp->alpha2;
617 memcpy(ncv->fw_name, rsp->fw_name, 12);
618 ncv->fw_version = ntohl(rsp->fw_version);
619 for (i = 0; i < ARRAY_SIZE(ncv->pci_ids); i++)
620 ncv->pci_ids[i] = ntohs(rsp->pci_ids[i]);
621 ncv->mf_id = ntohl(rsp->mf_id);
626 static int ncsi_rsp_handler_gc(struct ncsi_request *nr)
628 struct ncsi_rsp_gc_pkt *rsp;
629 struct ncsi_dev_priv *ndp = nr->ndp;
630 struct ncsi_channel *nc;
633 /* Find the channel */
634 rsp = (struct ncsi_rsp_gc_pkt *)skb_network_header(nr->rsp);
635 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
640 /* Update channel's capabilities */
641 nc->caps[NCSI_CAP_GENERIC].cap = ntohl(rsp->cap) &
642 NCSI_CAP_GENERIC_MASK;
643 nc->caps[NCSI_CAP_BC].cap = ntohl(rsp->bc_cap) &
645 nc->caps[NCSI_CAP_MC].cap = ntohl(rsp->mc_cap) &
647 nc->caps[NCSI_CAP_BUFFER].cap = ntohl(rsp->buf_cap);
648 nc->caps[NCSI_CAP_AEN].cap = ntohl(rsp->aen_cap) &
650 nc->caps[NCSI_CAP_VLAN].cap = rsp->vlan_mode &
653 size = (rsp->uc_cnt + rsp->mc_cnt + rsp->mixed_cnt) * ETH_ALEN;
654 nc->mac_filter.addrs = kzalloc(size, GFP_ATOMIC);
655 if (!nc->mac_filter.addrs)
657 nc->mac_filter.n_uc = rsp->uc_cnt;
658 nc->mac_filter.n_mc = rsp->mc_cnt;
659 nc->mac_filter.n_mixed = rsp->mixed_cnt;
661 nc->vlan_filter.vids = kcalloc(rsp->vlan_cnt,
662 sizeof(*nc->vlan_filter.vids),
664 if (!nc->vlan_filter.vids)
666 /* Set VLAN filters active so they are cleared in the first
667 * configuration state
669 nc->vlan_filter.bitmap = U64_MAX;
670 nc->vlan_filter.n_vids = rsp->vlan_cnt;
675 static int ncsi_rsp_handler_gp(struct ncsi_request *nr)
677 struct ncsi_channel_vlan_filter *ncvf;
678 struct ncsi_channel_mac_filter *ncmf;
679 struct ncsi_dev_priv *ndp = nr->ndp;
680 struct ncsi_rsp_gp_pkt *rsp;
681 struct ncsi_channel *nc;
682 unsigned short enable;
683 unsigned char *pdata;
688 /* Find the channel */
689 rsp = (struct ncsi_rsp_gp_pkt *)skb_network_header(nr->rsp);
690 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
695 /* Modes with explicit enabled indications */
696 if (ntohl(rsp->valid_modes) & 0x1) { /* BC filter mode */
697 nc->modes[NCSI_MODE_BC].enable = 1;
698 nc->modes[NCSI_MODE_BC].data[0] = ntohl(rsp->bc_mode);
700 if (ntohl(rsp->valid_modes) & 0x2) /* Channel enabled */
701 nc->modes[NCSI_MODE_ENABLE].enable = 1;
702 if (ntohl(rsp->valid_modes) & 0x4) /* Channel Tx enabled */
703 nc->modes[NCSI_MODE_TX_ENABLE].enable = 1;
704 if (ntohl(rsp->valid_modes) & 0x8) /* MC filter mode */
705 nc->modes[NCSI_MODE_MC].enable = 1;
707 /* Modes without explicit enabled indications */
708 nc->modes[NCSI_MODE_LINK].enable = 1;
709 nc->modes[NCSI_MODE_LINK].data[0] = ntohl(rsp->link_mode);
710 nc->modes[NCSI_MODE_VLAN].enable = 1;
711 nc->modes[NCSI_MODE_VLAN].data[0] = rsp->vlan_mode;
712 nc->modes[NCSI_MODE_FC].enable = 1;
713 nc->modes[NCSI_MODE_FC].data[0] = rsp->fc_mode;
714 nc->modes[NCSI_MODE_AEN].enable = 1;
715 nc->modes[NCSI_MODE_AEN].data[0] = ntohl(rsp->aen_mode);
717 /* MAC addresses filter table */
718 pdata = (unsigned char *)rsp + 48;
719 enable = rsp->mac_enable;
720 ncmf = &nc->mac_filter;
721 spin_lock_irqsave(&nc->lock, flags);
722 bitmap = &ncmf->bitmap;
723 for (i = 0; i < rsp->mac_cnt; i++, pdata += 6) {
724 if (!(enable & (0x1 << i)))
725 clear_bit(i, bitmap);
729 memcpy(&ncmf->addrs[i * ETH_ALEN], pdata, ETH_ALEN);
731 spin_unlock_irqrestore(&nc->lock, flags);
733 /* VLAN filter table */
734 enable = ntohs(rsp->vlan_enable);
735 ncvf = &nc->vlan_filter;
736 bitmap = &ncvf->bitmap;
737 spin_lock_irqsave(&nc->lock, flags);
738 for (i = 0; i < rsp->vlan_cnt; i++, pdata += 2) {
739 if (!(enable & (0x1 << i)))
740 clear_bit(i, bitmap);
744 ncvf->vids[i] = ntohs(*(__be16 *)pdata);
746 spin_unlock_irqrestore(&nc->lock, flags);
751 static int ncsi_rsp_handler_gcps(struct ncsi_request *nr)
753 struct ncsi_rsp_gcps_pkt *rsp;
754 struct ncsi_dev_priv *ndp = nr->ndp;
755 struct ncsi_channel *nc;
756 struct ncsi_channel_stats *ncs;
758 /* Find the channel */
759 rsp = (struct ncsi_rsp_gcps_pkt *)skb_network_header(nr->rsp);
760 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
765 /* Update HNC's statistics */
767 ncs->hnc_cnt_hi = ntohl(rsp->cnt_hi);
768 ncs->hnc_cnt_lo = ntohl(rsp->cnt_lo);
769 ncs->hnc_rx_bytes = ntohl(rsp->rx_bytes);
770 ncs->hnc_tx_bytes = ntohl(rsp->tx_bytes);
771 ncs->hnc_rx_uc_pkts = ntohl(rsp->rx_uc_pkts);
772 ncs->hnc_rx_mc_pkts = ntohl(rsp->rx_mc_pkts);
773 ncs->hnc_rx_bc_pkts = ntohl(rsp->rx_bc_pkts);
774 ncs->hnc_tx_uc_pkts = ntohl(rsp->tx_uc_pkts);
775 ncs->hnc_tx_mc_pkts = ntohl(rsp->tx_mc_pkts);
776 ncs->hnc_tx_bc_pkts = ntohl(rsp->tx_bc_pkts);
777 ncs->hnc_fcs_err = ntohl(rsp->fcs_err);
778 ncs->hnc_align_err = ntohl(rsp->align_err);
779 ncs->hnc_false_carrier = ntohl(rsp->false_carrier);
780 ncs->hnc_runt_pkts = ntohl(rsp->runt_pkts);
781 ncs->hnc_jabber_pkts = ntohl(rsp->jabber_pkts);
782 ncs->hnc_rx_pause_xon = ntohl(rsp->rx_pause_xon);
783 ncs->hnc_rx_pause_xoff = ntohl(rsp->rx_pause_xoff);
784 ncs->hnc_tx_pause_xon = ntohl(rsp->tx_pause_xon);
785 ncs->hnc_tx_pause_xoff = ntohl(rsp->tx_pause_xoff);
786 ncs->hnc_tx_s_collision = ntohl(rsp->tx_s_collision);
787 ncs->hnc_tx_m_collision = ntohl(rsp->tx_m_collision);
788 ncs->hnc_l_collision = ntohl(rsp->l_collision);
789 ncs->hnc_e_collision = ntohl(rsp->e_collision);
790 ncs->hnc_rx_ctl_frames = ntohl(rsp->rx_ctl_frames);
791 ncs->hnc_rx_64_frames = ntohl(rsp->rx_64_frames);
792 ncs->hnc_rx_127_frames = ntohl(rsp->rx_127_frames);
793 ncs->hnc_rx_255_frames = ntohl(rsp->rx_255_frames);
794 ncs->hnc_rx_511_frames = ntohl(rsp->rx_511_frames);
795 ncs->hnc_rx_1023_frames = ntohl(rsp->rx_1023_frames);
796 ncs->hnc_rx_1522_frames = ntohl(rsp->rx_1522_frames);
797 ncs->hnc_rx_9022_frames = ntohl(rsp->rx_9022_frames);
798 ncs->hnc_tx_64_frames = ntohl(rsp->tx_64_frames);
799 ncs->hnc_tx_127_frames = ntohl(rsp->tx_127_frames);
800 ncs->hnc_tx_255_frames = ntohl(rsp->tx_255_frames);
801 ncs->hnc_tx_511_frames = ntohl(rsp->tx_511_frames);
802 ncs->hnc_tx_1023_frames = ntohl(rsp->tx_1023_frames);
803 ncs->hnc_tx_1522_frames = ntohl(rsp->tx_1522_frames);
804 ncs->hnc_tx_9022_frames = ntohl(rsp->tx_9022_frames);
805 ncs->hnc_rx_valid_bytes = ntohl(rsp->rx_valid_bytes);
806 ncs->hnc_rx_runt_pkts = ntohl(rsp->rx_runt_pkts);
807 ncs->hnc_rx_jabber_pkts = ntohl(rsp->rx_jabber_pkts);
812 static int ncsi_rsp_handler_gns(struct ncsi_request *nr)
814 struct ncsi_rsp_gns_pkt *rsp;
815 struct ncsi_dev_priv *ndp = nr->ndp;
816 struct ncsi_channel *nc;
817 struct ncsi_channel_stats *ncs;
819 /* Find the channel */
820 rsp = (struct ncsi_rsp_gns_pkt *)skb_network_header(nr->rsp);
821 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
826 /* Update HNC's statistics */
828 ncs->ncsi_rx_cmds = ntohl(rsp->rx_cmds);
829 ncs->ncsi_dropped_cmds = ntohl(rsp->dropped_cmds);
830 ncs->ncsi_cmd_type_errs = ntohl(rsp->cmd_type_errs);
831 ncs->ncsi_cmd_csum_errs = ntohl(rsp->cmd_csum_errs);
832 ncs->ncsi_rx_pkts = ntohl(rsp->rx_pkts);
833 ncs->ncsi_tx_pkts = ntohl(rsp->tx_pkts);
834 ncs->ncsi_tx_aen_pkts = ntohl(rsp->tx_aen_pkts);
839 static int ncsi_rsp_handler_gnpts(struct ncsi_request *nr)
841 struct ncsi_rsp_gnpts_pkt *rsp;
842 struct ncsi_dev_priv *ndp = nr->ndp;
843 struct ncsi_channel *nc;
844 struct ncsi_channel_stats *ncs;
846 /* Find the channel */
847 rsp = (struct ncsi_rsp_gnpts_pkt *)skb_network_header(nr->rsp);
848 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
853 /* Update HNC's statistics */
855 ncs->pt_tx_pkts = ntohl(rsp->tx_pkts);
856 ncs->pt_tx_dropped = ntohl(rsp->tx_dropped);
857 ncs->pt_tx_channel_err = ntohl(rsp->tx_channel_err);
858 ncs->pt_tx_us_err = ntohl(rsp->tx_us_err);
859 ncs->pt_rx_pkts = ntohl(rsp->rx_pkts);
860 ncs->pt_rx_dropped = ntohl(rsp->rx_dropped);
861 ncs->pt_rx_channel_err = ntohl(rsp->rx_channel_err);
862 ncs->pt_rx_us_err = ntohl(rsp->rx_us_err);
863 ncs->pt_rx_os_err = ntohl(rsp->rx_os_err);
868 static int ncsi_rsp_handler_gps(struct ncsi_request *nr)
870 struct ncsi_rsp_gps_pkt *rsp;
871 struct ncsi_dev_priv *ndp = nr->ndp;
872 struct ncsi_package *np;
874 /* Find the package */
875 rsp = (struct ncsi_rsp_gps_pkt *)skb_network_header(nr->rsp);
876 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
884 static int ncsi_rsp_handler_gpuuid(struct ncsi_request *nr)
886 struct ncsi_rsp_gpuuid_pkt *rsp;
887 struct ncsi_dev_priv *ndp = nr->ndp;
888 struct ncsi_package *np;
890 /* Find the package */
891 rsp = (struct ncsi_rsp_gpuuid_pkt *)skb_network_header(nr->rsp);
892 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
897 memcpy(np->uuid, rsp->uuid, sizeof(rsp->uuid));
902 static struct ncsi_rsp_handler {
905 int (*handler)(struct ncsi_request *nr);
906 } ncsi_rsp_handlers[] = {
907 { NCSI_PKT_RSP_CIS, 4, ncsi_rsp_handler_cis },
908 { NCSI_PKT_RSP_SP, 4, ncsi_rsp_handler_sp },
909 { NCSI_PKT_RSP_DP, 4, ncsi_rsp_handler_dp },
910 { NCSI_PKT_RSP_EC, 4, ncsi_rsp_handler_ec },
911 { NCSI_PKT_RSP_DC, 4, ncsi_rsp_handler_dc },
912 { NCSI_PKT_RSP_RC, 4, ncsi_rsp_handler_rc },
913 { NCSI_PKT_RSP_ECNT, 4, ncsi_rsp_handler_ecnt },
914 { NCSI_PKT_RSP_DCNT, 4, ncsi_rsp_handler_dcnt },
915 { NCSI_PKT_RSP_AE, 4, ncsi_rsp_handler_ae },
916 { NCSI_PKT_RSP_SL, 4, ncsi_rsp_handler_sl },
917 { NCSI_PKT_RSP_GLS, 16, ncsi_rsp_handler_gls },
918 { NCSI_PKT_RSP_SVF, 4, ncsi_rsp_handler_svf },
919 { NCSI_PKT_RSP_EV, 4, ncsi_rsp_handler_ev },
920 { NCSI_PKT_RSP_DV, 4, ncsi_rsp_handler_dv },
921 { NCSI_PKT_RSP_SMA, 4, ncsi_rsp_handler_sma },
922 { NCSI_PKT_RSP_EBF, 4, ncsi_rsp_handler_ebf },
923 { NCSI_PKT_RSP_DBF, 4, ncsi_rsp_handler_dbf },
924 { NCSI_PKT_RSP_EGMF, 4, ncsi_rsp_handler_egmf },
925 { NCSI_PKT_RSP_DGMF, 4, ncsi_rsp_handler_dgmf },
926 { NCSI_PKT_RSP_SNFC, 4, ncsi_rsp_handler_snfc },
927 { NCSI_PKT_RSP_GVI, 40, ncsi_rsp_handler_gvi },
928 { NCSI_PKT_RSP_GC, 32, ncsi_rsp_handler_gc },
929 { NCSI_PKT_RSP_GP, -1, ncsi_rsp_handler_gp },
930 { NCSI_PKT_RSP_GCPS, 172, ncsi_rsp_handler_gcps },
931 { NCSI_PKT_RSP_GNS, 172, ncsi_rsp_handler_gns },
932 { NCSI_PKT_RSP_GNPTS, 172, ncsi_rsp_handler_gnpts },
933 { NCSI_PKT_RSP_GPS, 8, ncsi_rsp_handler_gps },
934 { NCSI_PKT_RSP_OEM, 0, NULL },
935 { NCSI_PKT_RSP_PLDM, 0, NULL },
936 { NCSI_PKT_RSP_GPUUID, 20, ncsi_rsp_handler_gpuuid }
939 int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev,
940 struct packet_type *pt, struct net_device *orig_dev)
942 struct ncsi_rsp_handler *nrh = NULL;
944 struct ncsi_dev_priv *ndp;
945 struct ncsi_request *nr;
946 struct ncsi_pkt_hdr *hdr;
950 /* Find the NCSI device */
951 nd = ncsi_find_dev(orig_dev);
952 ndp = nd ? TO_NCSI_DEV_PRIV(nd) : NULL;
956 /* Check if it is AEN packet */
957 hdr = (struct ncsi_pkt_hdr *)skb_network_header(skb);
958 if (hdr->type == NCSI_PKT_AEN)
959 return ncsi_aen_handler(ndp, skb);
961 /* Find the handler */
962 for (i = 0; i < ARRAY_SIZE(ncsi_rsp_handlers); i++) {
963 if (ncsi_rsp_handlers[i].type == hdr->type) {
964 if (ncsi_rsp_handlers[i].handler)
965 nrh = &ncsi_rsp_handlers[i];
974 netdev_err(nd->dev, "Received unrecognized packet (0x%x)\n",
979 /* Associate with the request */
980 spin_lock_irqsave(&ndp->lock, flags);
981 nr = &ndp->requests[hdr->id];
983 spin_unlock_irqrestore(&ndp->lock, flags);
989 spin_unlock_irqrestore(&ndp->lock, flags);
994 /* Validate the packet */
995 spin_unlock_irqrestore(&ndp->lock, flags);
996 payload = nrh->payload;
998 payload = ntohs(hdr->length);
999 ret = ncsi_validate_rsp_pkt(nr, payload);
1001 netdev_warn(ndp->ndev.dev,
1002 "NCSI: 'bad' packet ignored for type 0x%x\n",
1007 /* Process the packet */
1008 ret = nrh->handler(nr);
1010 netdev_err(ndp->ndev.dev,
1011 "NCSI: Handler for packet type 0x%x returned %d\n",
1014 ncsi_free_request(nr);