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_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->filters[NCSI_FILTER_VLAN];
352 if (cmd->index >= ncf->total)
355 /* Add or remove the VLAN filter */
356 if (!(cmd->enable & 0x1)) {
357 /* HW indexes from 1 */
358 ret = ncsi_remove_filter(nc, NCSI_FILTER_VLAN, cmd->index - 1);
360 vlan = ntohs(cmd->vlan);
361 ret = ncsi_add_filter(nc, NCSI_FILTER_VLAN, &vlan);
367 static int ncsi_rsp_handler_ev(struct ncsi_request *nr)
369 struct ncsi_cmd_ev_pkt *cmd;
370 struct ncsi_rsp_pkt *rsp;
371 struct ncsi_dev_priv *ndp = nr->ndp;
372 struct ncsi_channel *nc;
373 struct ncsi_channel_mode *ncm;
375 /* Find the package and channel */
376 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
377 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
382 /* Check if VLAN mode has been enabled */
383 ncm = &nc->modes[NCSI_MODE_VLAN];
387 /* Update to VLAN mode */
388 cmd = (struct ncsi_cmd_ev_pkt *)skb_network_header(nr->cmd);
390 ncm->data[0] = ntohl(cmd->mode);
395 static int ncsi_rsp_handler_dv(struct ncsi_request *nr)
397 struct ncsi_rsp_pkt *rsp;
398 struct ncsi_dev_priv *ndp = nr->ndp;
399 struct ncsi_channel *nc;
400 struct ncsi_channel_mode *ncm;
402 /* Find the package and channel */
403 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
404 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
409 /* Check if VLAN mode has been enabled */
410 ncm = &nc->modes[NCSI_MODE_VLAN];
414 /* Update to VLAN mode */
419 static int ncsi_rsp_handler_sma(struct ncsi_request *nr)
421 struct ncsi_cmd_sma_pkt *cmd;
422 struct ncsi_rsp_pkt *rsp;
423 struct ncsi_dev_priv *ndp = nr->ndp;
424 struct ncsi_channel *nc;
425 struct ncsi_channel_filter *ncf;
428 /* Find the package and channel */
429 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
430 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
435 /* According to NCSI spec 1.01, the mixed filter table
436 * isn't supported yet.
438 cmd = (struct ncsi_cmd_sma_pkt *)skb_network_header(nr->cmd);
439 switch (cmd->at_e >> 5) {
440 case 0x0: /* UC address */
441 ncf = nc->filters[NCSI_FILTER_UC];
443 case 0x1: /* MC address */
444 ncf = nc->filters[NCSI_FILTER_MC];
450 /* Sanity check on the filter */
453 else if (cmd->index >= ncf->total)
456 bitmap = &ncf->bitmap;
457 if (cmd->at_e & 0x1) {
458 set_bit(cmd->index, bitmap);
459 memcpy(ncf->data + 6 * cmd->index, cmd->mac, 6);
461 clear_bit(cmd->index, bitmap);
462 memset(ncf->data + 6 * cmd->index, 0, 6);
468 static int ncsi_rsp_handler_ebf(struct ncsi_request *nr)
470 struct ncsi_cmd_ebf_pkt *cmd;
471 struct ncsi_rsp_pkt *rsp;
472 struct ncsi_dev_priv *ndp = nr->ndp;
473 struct ncsi_channel *nc;
474 struct ncsi_channel_mode *ncm;
476 /* Find the package and channel */
477 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
478 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc);
482 /* Check if broadcast filter has been enabled */
483 ncm = &nc->modes[NCSI_MODE_BC];
487 /* Update to broadcast filter mode */
488 cmd = (struct ncsi_cmd_ebf_pkt *)skb_network_header(nr->cmd);
490 ncm->data[0] = ntohl(cmd->mode);
495 static int ncsi_rsp_handler_dbf(struct ncsi_request *nr)
497 struct ncsi_rsp_pkt *rsp;
498 struct ncsi_dev_priv *ndp = nr->ndp;
499 struct ncsi_channel *nc;
500 struct ncsi_channel_mode *ncm;
502 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
503 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
508 /* Check if broadcast filter isn't enabled */
509 ncm = &nc->modes[NCSI_MODE_BC];
513 /* Update to broadcast filter mode */
520 static int ncsi_rsp_handler_egmf(struct ncsi_request *nr)
522 struct ncsi_cmd_egmf_pkt *cmd;
523 struct ncsi_rsp_pkt *rsp;
524 struct ncsi_dev_priv *ndp = nr->ndp;
525 struct ncsi_channel *nc;
526 struct ncsi_channel_mode *ncm;
528 /* Find the channel */
529 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
530 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
535 /* Check if multicast filter has been enabled */
536 ncm = &nc->modes[NCSI_MODE_MC];
540 /* Update to multicast filter mode */
541 cmd = (struct ncsi_cmd_egmf_pkt *)skb_network_header(nr->cmd);
543 ncm->data[0] = ntohl(cmd->mode);
548 static int ncsi_rsp_handler_dgmf(struct ncsi_request *nr)
550 struct ncsi_rsp_pkt *rsp;
551 struct ncsi_dev_priv *ndp = nr->ndp;
552 struct ncsi_channel *nc;
553 struct ncsi_channel_mode *ncm;
555 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
556 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
561 /* Check if multicast filter has been enabled */
562 ncm = &nc->modes[NCSI_MODE_MC];
566 /* Update to multicast filter mode */
573 static int ncsi_rsp_handler_snfc(struct ncsi_request *nr)
575 struct ncsi_cmd_snfc_pkt *cmd;
576 struct ncsi_rsp_pkt *rsp;
577 struct ncsi_dev_priv *ndp = nr->ndp;
578 struct ncsi_channel *nc;
579 struct ncsi_channel_mode *ncm;
581 /* Find the channel */
582 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
583 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
588 /* Check if flow control has been enabled */
589 ncm = &nc->modes[NCSI_MODE_FC];
593 /* Update to flow control mode */
594 cmd = (struct ncsi_cmd_snfc_pkt *)skb_network_header(nr->cmd);
596 ncm->data[0] = cmd->mode;
601 static int ncsi_rsp_handler_gvi(struct ncsi_request *nr)
603 struct ncsi_rsp_gvi_pkt *rsp;
604 struct ncsi_dev_priv *ndp = nr->ndp;
605 struct ncsi_channel *nc;
606 struct ncsi_channel_version *ncv;
609 /* Find the channel */
610 rsp = (struct ncsi_rsp_gvi_pkt *)skb_network_header(nr->rsp);
611 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
616 /* Update to channel's version info */
618 ncv->version = ntohl(rsp->ncsi_version);
619 ncv->alpha2 = rsp->alpha2;
620 memcpy(ncv->fw_name, rsp->fw_name, 12);
621 ncv->fw_version = ntohl(rsp->fw_version);
622 for (i = 0; i < ARRAY_SIZE(ncv->pci_ids); i++)
623 ncv->pci_ids[i] = ntohs(rsp->pci_ids[i]);
624 ncv->mf_id = ntohl(rsp->mf_id);
629 static int ncsi_rsp_handler_gc(struct ncsi_request *nr)
631 struct ncsi_rsp_gc_pkt *rsp;
632 struct ncsi_dev_priv *ndp = nr->ndp;
633 struct ncsi_channel *nc;
634 struct ncsi_channel_filter *ncf;
635 size_t size, entry_size;
638 /* Find the channel */
639 rsp = (struct ncsi_rsp_gc_pkt *)skb_network_header(nr->rsp);
640 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
645 /* Update channel's capabilities */
646 nc->caps[NCSI_CAP_GENERIC].cap = ntohl(rsp->cap) &
647 NCSI_CAP_GENERIC_MASK;
648 nc->caps[NCSI_CAP_BC].cap = ntohl(rsp->bc_cap) &
650 nc->caps[NCSI_CAP_MC].cap = ntohl(rsp->mc_cap) &
652 nc->caps[NCSI_CAP_BUFFER].cap = ntohl(rsp->buf_cap);
653 nc->caps[NCSI_CAP_AEN].cap = ntohl(rsp->aen_cap) &
655 nc->caps[NCSI_CAP_VLAN].cap = rsp->vlan_mode &
659 for (i = 0; i < NCSI_FILTER_MAX; i++) {
661 case NCSI_FILTER_VLAN:
665 case NCSI_FILTER_MIXED:
666 cnt = rsp->mixed_cnt;
681 if (!cnt || nc->filters[i])
684 size = sizeof(*ncf) + cnt * entry_size;
685 ncf = kzalloc(size, GFP_ATOMIC);
687 pr_warn("%s: Cannot alloc filter table (%d)\n",
694 if (i == NCSI_FILTER_VLAN) {
695 /* Set VLAN filters active so they are cleared in
696 * first configuration state
698 ncf->bitmap = U64_MAX;
702 nc->filters[i] = ncf;
708 static int ncsi_rsp_handler_gp(struct ncsi_request *nr)
710 struct ncsi_rsp_gp_pkt *rsp;
711 struct ncsi_dev_priv *ndp = nr->ndp;
712 struct ncsi_channel *nc;
713 unsigned short enable, vlan;
714 unsigned char *pdata;
717 /* Find the channel */
718 rsp = (struct ncsi_rsp_gp_pkt *)skb_network_header(nr->rsp);
719 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
724 /* Modes with explicit enabled indications */
725 if (ntohl(rsp->valid_modes) & 0x1) { /* BC filter mode */
726 nc->modes[NCSI_MODE_BC].enable = 1;
727 nc->modes[NCSI_MODE_BC].data[0] = ntohl(rsp->bc_mode);
729 if (ntohl(rsp->valid_modes) & 0x2) /* Channel enabled */
730 nc->modes[NCSI_MODE_ENABLE].enable = 1;
731 if (ntohl(rsp->valid_modes) & 0x4) /* Channel Tx enabled */
732 nc->modes[NCSI_MODE_TX_ENABLE].enable = 1;
733 if (ntohl(rsp->valid_modes) & 0x8) /* MC filter mode */
734 nc->modes[NCSI_MODE_MC].enable = 1;
736 /* Modes without explicit enabled indications */
737 nc->modes[NCSI_MODE_LINK].enable = 1;
738 nc->modes[NCSI_MODE_LINK].data[0] = ntohl(rsp->link_mode);
739 nc->modes[NCSI_MODE_VLAN].enable = 1;
740 nc->modes[NCSI_MODE_VLAN].data[0] = rsp->vlan_mode;
741 nc->modes[NCSI_MODE_FC].enable = 1;
742 nc->modes[NCSI_MODE_FC].data[0] = rsp->fc_mode;
743 nc->modes[NCSI_MODE_AEN].enable = 1;
744 nc->modes[NCSI_MODE_AEN].data[0] = ntohl(rsp->aen_mode);
746 /* MAC addresses filter table */
747 pdata = (unsigned char *)rsp + 48;
748 enable = rsp->mac_enable;
749 for (i = 0; i < rsp->mac_cnt; i++, pdata += 6) {
750 if (i >= (nc->filters[NCSI_FILTER_UC]->total +
751 nc->filters[NCSI_FILTER_MC]->total))
752 table = NCSI_FILTER_MIXED;
753 else if (i >= nc->filters[NCSI_FILTER_UC]->total)
754 table = NCSI_FILTER_MC;
756 table = NCSI_FILTER_UC;
758 if (!(enable & (0x1 << i)))
761 if (ncsi_find_filter(nc, table, pdata) >= 0)
764 ncsi_add_filter(nc, table, pdata);
767 /* VLAN filter table */
768 enable = ntohs(rsp->vlan_enable);
769 for (i = 0; i < rsp->vlan_cnt; i++, pdata += 2) {
770 if (!(enable & (0x1 << i)))
773 vlan = ntohs(*(__be16 *)pdata);
774 if (ncsi_find_filter(nc, NCSI_FILTER_VLAN, &vlan) >= 0)
777 ncsi_add_filter(nc, NCSI_FILTER_VLAN, &vlan);
783 static int ncsi_rsp_handler_gcps(struct ncsi_request *nr)
785 struct ncsi_rsp_gcps_pkt *rsp;
786 struct ncsi_dev_priv *ndp = nr->ndp;
787 struct ncsi_channel *nc;
788 struct ncsi_channel_stats *ncs;
790 /* Find the channel */
791 rsp = (struct ncsi_rsp_gcps_pkt *)skb_network_header(nr->rsp);
792 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
797 /* Update HNC's statistics */
799 ncs->hnc_cnt_hi = ntohl(rsp->cnt_hi);
800 ncs->hnc_cnt_lo = ntohl(rsp->cnt_lo);
801 ncs->hnc_rx_bytes = ntohl(rsp->rx_bytes);
802 ncs->hnc_tx_bytes = ntohl(rsp->tx_bytes);
803 ncs->hnc_rx_uc_pkts = ntohl(rsp->rx_uc_pkts);
804 ncs->hnc_rx_mc_pkts = ntohl(rsp->rx_mc_pkts);
805 ncs->hnc_rx_bc_pkts = ntohl(rsp->rx_bc_pkts);
806 ncs->hnc_tx_uc_pkts = ntohl(rsp->tx_uc_pkts);
807 ncs->hnc_tx_mc_pkts = ntohl(rsp->tx_mc_pkts);
808 ncs->hnc_tx_bc_pkts = ntohl(rsp->tx_bc_pkts);
809 ncs->hnc_fcs_err = ntohl(rsp->fcs_err);
810 ncs->hnc_align_err = ntohl(rsp->align_err);
811 ncs->hnc_false_carrier = ntohl(rsp->false_carrier);
812 ncs->hnc_runt_pkts = ntohl(rsp->runt_pkts);
813 ncs->hnc_jabber_pkts = ntohl(rsp->jabber_pkts);
814 ncs->hnc_rx_pause_xon = ntohl(rsp->rx_pause_xon);
815 ncs->hnc_rx_pause_xoff = ntohl(rsp->rx_pause_xoff);
816 ncs->hnc_tx_pause_xon = ntohl(rsp->tx_pause_xon);
817 ncs->hnc_tx_pause_xoff = ntohl(rsp->tx_pause_xoff);
818 ncs->hnc_tx_s_collision = ntohl(rsp->tx_s_collision);
819 ncs->hnc_tx_m_collision = ntohl(rsp->tx_m_collision);
820 ncs->hnc_l_collision = ntohl(rsp->l_collision);
821 ncs->hnc_e_collision = ntohl(rsp->e_collision);
822 ncs->hnc_rx_ctl_frames = ntohl(rsp->rx_ctl_frames);
823 ncs->hnc_rx_64_frames = ntohl(rsp->rx_64_frames);
824 ncs->hnc_rx_127_frames = ntohl(rsp->rx_127_frames);
825 ncs->hnc_rx_255_frames = ntohl(rsp->rx_255_frames);
826 ncs->hnc_rx_511_frames = ntohl(rsp->rx_511_frames);
827 ncs->hnc_rx_1023_frames = ntohl(rsp->rx_1023_frames);
828 ncs->hnc_rx_1522_frames = ntohl(rsp->rx_1522_frames);
829 ncs->hnc_rx_9022_frames = ntohl(rsp->rx_9022_frames);
830 ncs->hnc_tx_64_frames = ntohl(rsp->tx_64_frames);
831 ncs->hnc_tx_127_frames = ntohl(rsp->tx_127_frames);
832 ncs->hnc_tx_255_frames = ntohl(rsp->tx_255_frames);
833 ncs->hnc_tx_511_frames = ntohl(rsp->tx_511_frames);
834 ncs->hnc_tx_1023_frames = ntohl(rsp->tx_1023_frames);
835 ncs->hnc_tx_1522_frames = ntohl(rsp->tx_1522_frames);
836 ncs->hnc_tx_9022_frames = ntohl(rsp->tx_9022_frames);
837 ncs->hnc_rx_valid_bytes = ntohl(rsp->rx_valid_bytes);
838 ncs->hnc_rx_runt_pkts = ntohl(rsp->rx_runt_pkts);
839 ncs->hnc_rx_jabber_pkts = ntohl(rsp->rx_jabber_pkts);
844 static int ncsi_rsp_handler_gns(struct ncsi_request *nr)
846 struct ncsi_rsp_gns_pkt *rsp;
847 struct ncsi_dev_priv *ndp = nr->ndp;
848 struct ncsi_channel *nc;
849 struct ncsi_channel_stats *ncs;
851 /* Find the channel */
852 rsp = (struct ncsi_rsp_gns_pkt *)skb_network_header(nr->rsp);
853 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
858 /* Update HNC's statistics */
860 ncs->ncsi_rx_cmds = ntohl(rsp->rx_cmds);
861 ncs->ncsi_dropped_cmds = ntohl(rsp->dropped_cmds);
862 ncs->ncsi_cmd_type_errs = ntohl(rsp->cmd_type_errs);
863 ncs->ncsi_cmd_csum_errs = ntohl(rsp->cmd_csum_errs);
864 ncs->ncsi_rx_pkts = ntohl(rsp->rx_pkts);
865 ncs->ncsi_tx_pkts = ntohl(rsp->tx_pkts);
866 ncs->ncsi_tx_aen_pkts = ntohl(rsp->tx_aen_pkts);
871 static int ncsi_rsp_handler_gnpts(struct ncsi_request *nr)
873 struct ncsi_rsp_gnpts_pkt *rsp;
874 struct ncsi_dev_priv *ndp = nr->ndp;
875 struct ncsi_channel *nc;
876 struct ncsi_channel_stats *ncs;
878 /* Find the channel */
879 rsp = (struct ncsi_rsp_gnpts_pkt *)skb_network_header(nr->rsp);
880 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
885 /* Update HNC's statistics */
887 ncs->pt_tx_pkts = ntohl(rsp->tx_pkts);
888 ncs->pt_tx_dropped = ntohl(rsp->tx_dropped);
889 ncs->pt_tx_channel_err = ntohl(rsp->tx_channel_err);
890 ncs->pt_tx_us_err = ntohl(rsp->tx_us_err);
891 ncs->pt_rx_pkts = ntohl(rsp->rx_pkts);
892 ncs->pt_rx_dropped = ntohl(rsp->rx_dropped);
893 ncs->pt_rx_channel_err = ntohl(rsp->rx_channel_err);
894 ncs->pt_rx_us_err = ntohl(rsp->rx_us_err);
895 ncs->pt_rx_os_err = ntohl(rsp->rx_os_err);
900 static int ncsi_rsp_handler_gps(struct ncsi_request *nr)
902 struct ncsi_rsp_gps_pkt *rsp;
903 struct ncsi_dev_priv *ndp = nr->ndp;
904 struct ncsi_package *np;
906 /* Find the package */
907 rsp = (struct ncsi_rsp_gps_pkt *)skb_network_header(nr->rsp);
908 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
916 static int ncsi_rsp_handler_gpuuid(struct ncsi_request *nr)
918 struct ncsi_rsp_gpuuid_pkt *rsp;
919 struct ncsi_dev_priv *ndp = nr->ndp;
920 struct ncsi_package *np;
922 /* Find the package */
923 rsp = (struct ncsi_rsp_gpuuid_pkt *)skb_network_header(nr->rsp);
924 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
929 memcpy(np->uuid, rsp->uuid, sizeof(rsp->uuid));
934 static struct ncsi_rsp_handler {
937 int (*handler)(struct ncsi_request *nr);
938 } ncsi_rsp_handlers[] = {
939 { NCSI_PKT_RSP_CIS, 4, ncsi_rsp_handler_cis },
940 { NCSI_PKT_RSP_SP, 4, ncsi_rsp_handler_sp },
941 { NCSI_PKT_RSP_DP, 4, ncsi_rsp_handler_dp },
942 { NCSI_PKT_RSP_EC, 4, ncsi_rsp_handler_ec },
943 { NCSI_PKT_RSP_DC, 4, ncsi_rsp_handler_dc },
944 { NCSI_PKT_RSP_RC, 4, ncsi_rsp_handler_rc },
945 { NCSI_PKT_RSP_ECNT, 4, ncsi_rsp_handler_ecnt },
946 { NCSI_PKT_RSP_DCNT, 4, ncsi_rsp_handler_dcnt },
947 { NCSI_PKT_RSP_AE, 4, ncsi_rsp_handler_ae },
948 { NCSI_PKT_RSP_SL, 4, ncsi_rsp_handler_sl },
949 { NCSI_PKT_RSP_GLS, 16, ncsi_rsp_handler_gls },
950 { NCSI_PKT_RSP_SVF, 4, ncsi_rsp_handler_svf },
951 { NCSI_PKT_RSP_EV, 4, ncsi_rsp_handler_ev },
952 { NCSI_PKT_RSP_DV, 4, ncsi_rsp_handler_dv },
953 { NCSI_PKT_RSP_SMA, 4, ncsi_rsp_handler_sma },
954 { NCSI_PKT_RSP_EBF, 4, ncsi_rsp_handler_ebf },
955 { NCSI_PKT_RSP_DBF, 4, ncsi_rsp_handler_dbf },
956 { NCSI_PKT_RSP_EGMF, 4, ncsi_rsp_handler_egmf },
957 { NCSI_PKT_RSP_DGMF, 4, ncsi_rsp_handler_dgmf },
958 { NCSI_PKT_RSP_SNFC, 4, ncsi_rsp_handler_snfc },
959 { NCSI_PKT_RSP_GVI, 40, ncsi_rsp_handler_gvi },
960 { NCSI_PKT_RSP_GC, 32, ncsi_rsp_handler_gc },
961 { NCSI_PKT_RSP_GP, -1, ncsi_rsp_handler_gp },
962 { NCSI_PKT_RSP_GCPS, 172, ncsi_rsp_handler_gcps },
963 { NCSI_PKT_RSP_GNS, 172, ncsi_rsp_handler_gns },
964 { NCSI_PKT_RSP_GNPTS, 172, ncsi_rsp_handler_gnpts },
965 { NCSI_PKT_RSP_GPS, 8, ncsi_rsp_handler_gps },
966 { NCSI_PKT_RSP_OEM, 0, NULL },
967 { NCSI_PKT_RSP_PLDM, 0, NULL },
968 { NCSI_PKT_RSP_GPUUID, 20, ncsi_rsp_handler_gpuuid }
971 int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev,
972 struct packet_type *pt, struct net_device *orig_dev)
974 struct ncsi_rsp_handler *nrh = NULL;
976 struct ncsi_dev_priv *ndp;
977 struct ncsi_request *nr;
978 struct ncsi_pkt_hdr *hdr;
982 /* Find the NCSI device */
983 nd = ncsi_find_dev(dev);
984 ndp = nd ? TO_NCSI_DEV_PRIV(nd) : NULL;
988 /* Check if it is AEN packet */
989 hdr = (struct ncsi_pkt_hdr *)skb_network_header(skb);
990 if (hdr->type == NCSI_PKT_AEN)
991 return ncsi_aen_handler(ndp, skb);
993 /* Find the handler */
994 for (i = 0; i < ARRAY_SIZE(ncsi_rsp_handlers); i++) {
995 if (ncsi_rsp_handlers[i].type == hdr->type) {
996 if (ncsi_rsp_handlers[i].handler)
997 nrh = &ncsi_rsp_handlers[i];
1006 netdev_err(nd->dev, "Received unrecognized packet (0x%x)\n",
1011 /* Associate with the request */
1012 spin_lock_irqsave(&ndp->lock, flags);
1013 nr = &ndp->requests[hdr->id];
1015 spin_unlock_irqrestore(&ndp->lock, flags);
1021 spin_unlock_irqrestore(&ndp->lock, flags);
1026 /* Validate the packet */
1027 spin_unlock_irqrestore(&ndp->lock, flags);
1028 payload = nrh->payload;
1030 payload = ntohs(hdr->length);
1031 ret = ncsi_validate_rsp_pkt(nr, payload);
1033 netdev_warn(ndp->ndev.dev,
1034 "NCSI: 'bad' packet ignored for type 0x%x\n",
1039 /* Process the packet */
1040 ret = nrh->handler(nr);
1042 netdev_err(ndp->ndev.dev,
1043 "NCSI: Handler for packet type 0x%x returned %d\n",
1046 ncsi_free_request(nr);