1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright Gavin Shan, IBM Corporation 2016.
6 #include <linux/module.h>
7 #include <linux/kernel.h>
8 #include <linux/init.h>
9 #include <linux/netdevice.h>
10 #include <linux/etherdevice.h>
11 #include <linux/skbuff.h>
14 #include <net/net_namespace.h>
16 #include <net/genetlink.h>
20 #include "ncsi-netlink.h"
22 static int ncsi_validate_rsp_pkt(struct ncsi_request *nr,
23 unsigned short payload)
25 struct ncsi_rsp_pkt_hdr *h;
29 /* Check NCSI packet header. We don't need validate
30 * the packet type, which should have been checked
31 * before calling this function.
33 h = (struct ncsi_rsp_pkt_hdr *)skb_network_header(nr->rsp);
35 if (h->common.revision != NCSI_PKT_REVISION) {
36 netdev_dbg(nr->ndp->ndev.dev,
37 "NCSI: unsupported header revision\n");
40 if (ntohs(h->common.length) != payload) {
41 netdev_dbg(nr->ndp->ndev.dev,
42 "NCSI: payload length mismatched\n");
46 /* Check on code and reason */
47 if (ntohs(h->code) != NCSI_PKT_RSP_C_COMPLETED ||
48 ntohs(h->reason) != NCSI_PKT_RSP_R_NO_ERROR) {
49 netdev_dbg(nr->ndp->ndev.dev,
50 "NCSI: non zero response/reason code\n");
54 /* Validate checksum, which might be zeroes if the
55 * sender doesn't support checksum according to NCSI
58 pchecksum = (__be32 *)((void *)(h + 1) + payload - 4);
59 if (ntohl(*pchecksum) == 0)
62 checksum = ncsi_calculate_checksum((unsigned char *)h,
63 sizeof(*h) + payload - 4);
65 if (*pchecksum != htonl(checksum)) {
66 netdev_dbg(nr->ndp->ndev.dev, "NCSI: checksum mismatched\n");
73 static int ncsi_rsp_handler_cis(struct ncsi_request *nr)
75 struct ncsi_rsp_pkt *rsp;
76 struct ncsi_dev_priv *ndp = nr->ndp;
77 struct ncsi_package *np;
78 struct ncsi_channel *nc;
81 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
82 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, &nc);
84 if (ndp->flags & NCSI_DEV_PROBED)
87 id = NCSI_CHANNEL_INDEX(rsp->rsp.common.channel);
88 nc = ncsi_add_channel(np, id);
91 return nc ? 0 : -ENODEV;
94 static int ncsi_rsp_handler_sp(struct ncsi_request *nr)
96 struct ncsi_rsp_pkt *rsp;
97 struct ncsi_dev_priv *ndp = nr->ndp;
98 struct ncsi_package *np;
101 /* Add the package if it's not existing. Otherwise,
102 * to change the state of its child channels.
104 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
105 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
108 if (ndp->flags & NCSI_DEV_PROBED)
111 id = NCSI_PACKAGE_INDEX(rsp->rsp.common.channel);
112 np = ncsi_add_package(ndp, id);
120 static int ncsi_rsp_handler_dp(struct ncsi_request *nr)
122 struct ncsi_rsp_pkt *rsp;
123 struct ncsi_dev_priv *ndp = nr->ndp;
124 struct ncsi_package *np;
125 struct ncsi_channel *nc;
128 /* Find the package */
129 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
130 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
135 /* Change state of all channels attached to the package */
136 NCSI_FOR_EACH_CHANNEL(np, nc) {
137 spin_lock_irqsave(&nc->lock, flags);
138 nc->state = NCSI_CHANNEL_INACTIVE;
139 spin_unlock_irqrestore(&nc->lock, flags);
145 static int ncsi_rsp_handler_ec(struct ncsi_request *nr)
147 struct ncsi_rsp_pkt *rsp;
148 struct ncsi_dev_priv *ndp = nr->ndp;
149 struct ncsi_channel *nc;
150 struct ncsi_channel_mode *ncm;
152 /* Find the package and channel */
153 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
154 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
159 ncm = &nc->modes[NCSI_MODE_ENABLE];
167 static int ncsi_rsp_handler_dc(struct ncsi_request *nr)
169 struct ncsi_rsp_pkt *rsp;
170 struct ncsi_dev_priv *ndp = nr->ndp;
171 struct ncsi_channel *nc;
172 struct ncsi_channel_mode *ncm;
175 ret = ncsi_validate_rsp_pkt(nr, 4);
179 /* Find the package and channel */
180 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
181 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
186 ncm = &nc->modes[NCSI_MODE_ENABLE];
194 static int ncsi_rsp_handler_rc(struct ncsi_request *nr)
196 struct ncsi_rsp_pkt *rsp;
197 struct ncsi_dev_priv *ndp = nr->ndp;
198 struct ncsi_channel *nc;
201 /* Find the package and channel */
202 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
203 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
208 /* Update state for the specified channel */
209 spin_lock_irqsave(&nc->lock, flags);
210 nc->state = NCSI_CHANNEL_INACTIVE;
211 spin_unlock_irqrestore(&nc->lock, flags);
216 static int ncsi_rsp_handler_ecnt(struct ncsi_request *nr)
218 struct ncsi_rsp_pkt *rsp;
219 struct ncsi_dev_priv *ndp = nr->ndp;
220 struct ncsi_channel *nc;
221 struct ncsi_channel_mode *ncm;
223 /* Find the package and channel */
224 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
225 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
230 ncm = &nc->modes[NCSI_MODE_TX_ENABLE];
238 static int ncsi_rsp_handler_dcnt(struct ncsi_request *nr)
240 struct ncsi_rsp_pkt *rsp;
241 struct ncsi_dev_priv *ndp = nr->ndp;
242 struct ncsi_channel *nc;
243 struct ncsi_channel_mode *ncm;
245 /* Find the package and channel */
246 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
247 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
252 ncm = &nc->modes[NCSI_MODE_TX_ENABLE];
260 static int ncsi_rsp_handler_ae(struct ncsi_request *nr)
262 struct ncsi_cmd_ae_pkt *cmd;
263 struct ncsi_rsp_pkt *rsp;
264 struct ncsi_dev_priv *ndp = nr->ndp;
265 struct ncsi_channel *nc;
266 struct ncsi_channel_mode *ncm;
268 /* Find the package and channel */
269 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
270 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
275 /* Check if the AEN has been enabled */
276 ncm = &nc->modes[NCSI_MODE_AEN];
280 /* Update to AEN configuration */
281 cmd = (struct ncsi_cmd_ae_pkt *)skb_network_header(nr->cmd);
283 ncm->data[0] = cmd->mc_id;
284 ncm->data[1] = ntohl(cmd->mode);
289 static int ncsi_rsp_handler_sl(struct ncsi_request *nr)
291 struct ncsi_cmd_sl_pkt *cmd;
292 struct ncsi_rsp_pkt *rsp;
293 struct ncsi_dev_priv *ndp = nr->ndp;
294 struct ncsi_channel *nc;
295 struct ncsi_channel_mode *ncm;
297 /* Find the package and channel */
298 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
299 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
304 cmd = (struct ncsi_cmd_sl_pkt *)skb_network_header(nr->cmd);
305 ncm = &nc->modes[NCSI_MODE_LINK];
306 ncm->data[0] = ntohl(cmd->mode);
307 ncm->data[1] = ntohl(cmd->oem_mode);
312 static int ncsi_rsp_handler_gls(struct ncsi_request *nr)
314 struct ncsi_rsp_gls_pkt *rsp;
315 struct ncsi_dev_priv *ndp = nr->ndp;
316 struct ncsi_channel *nc;
317 struct ncsi_channel_mode *ncm;
320 /* Find the package and channel */
321 rsp = (struct ncsi_rsp_gls_pkt *)skb_network_header(nr->rsp);
322 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
327 ncm = &nc->modes[NCSI_MODE_LINK];
328 ncm->data[2] = ntohl(rsp->status);
329 ncm->data[3] = ntohl(rsp->other);
330 ncm->data[4] = ntohl(rsp->oem_status);
332 if (nr->flags & NCSI_REQ_FLAG_EVENT_DRIVEN)
335 /* Reset the channel monitor if it has been enabled */
336 spin_lock_irqsave(&nc->lock, flags);
337 nc->monitor.state = NCSI_CHANNEL_MONITOR_START;
338 spin_unlock_irqrestore(&nc->lock, flags);
343 static int ncsi_rsp_handler_svf(struct ncsi_request *nr)
345 struct ncsi_cmd_svf_pkt *cmd;
346 struct ncsi_rsp_pkt *rsp;
347 struct ncsi_dev_priv *ndp = nr->ndp;
348 struct ncsi_channel *nc;
349 struct ncsi_channel_vlan_filter *ncf;
353 /* Find the package and channel */
354 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
355 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
360 cmd = (struct ncsi_cmd_svf_pkt *)skb_network_header(nr->cmd);
361 ncf = &nc->vlan_filter;
362 if (cmd->index == 0 || cmd->index > ncf->n_vids)
365 /* Add or remove the VLAN filter. Remember HW indexes from 1 */
366 spin_lock_irqsave(&nc->lock, flags);
367 bitmap = &ncf->bitmap;
368 if (!(cmd->enable & 0x1)) {
369 if (test_and_clear_bit(cmd->index - 1, bitmap))
370 ncf->vids[cmd->index - 1] = 0;
372 set_bit(cmd->index - 1, bitmap);
373 ncf->vids[cmd->index - 1] = ntohs(cmd->vlan);
375 spin_unlock_irqrestore(&nc->lock, flags);
380 static int ncsi_rsp_handler_ev(struct ncsi_request *nr)
382 struct ncsi_cmd_ev_pkt *cmd;
383 struct ncsi_rsp_pkt *rsp;
384 struct ncsi_dev_priv *ndp = nr->ndp;
385 struct ncsi_channel *nc;
386 struct ncsi_channel_mode *ncm;
388 /* Find the package and channel */
389 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
390 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
395 /* Check if VLAN mode has been enabled */
396 ncm = &nc->modes[NCSI_MODE_VLAN];
400 /* Update to VLAN mode */
401 cmd = (struct ncsi_cmd_ev_pkt *)skb_network_header(nr->cmd);
403 ncm->data[0] = ntohl(cmd->mode);
408 static int ncsi_rsp_handler_dv(struct ncsi_request *nr)
410 struct ncsi_rsp_pkt *rsp;
411 struct ncsi_dev_priv *ndp = nr->ndp;
412 struct ncsi_channel *nc;
413 struct ncsi_channel_mode *ncm;
415 /* Find the package and channel */
416 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
417 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
422 /* Check if VLAN mode has been enabled */
423 ncm = &nc->modes[NCSI_MODE_VLAN];
427 /* Update to VLAN mode */
432 static int ncsi_rsp_handler_sma(struct ncsi_request *nr)
434 struct ncsi_cmd_sma_pkt *cmd;
435 struct ncsi_rsp_pkt *rsp;
436 struct ncsi_dev_priv *ndp = nr->ndp;
437 struct ncsi_channel *nc;
438 struct ncsi_channel_mac_filter *ncf;
445 /* Find the package and channel */
446 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
447 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
452 /* According to NCSI spec 1.01, the mixed filter table
453 * isn't supported yet.
455 cmd = (struct ncsi_cmd_sma_pkt *)skb_network_header(nr->cmd);
456 enabled = cmd->at_e & 0x1;
457 ncf = &nc->mac_filter;
458 bitmap = &ncf->bitmap;
460 if (cmd->index == 0 ||
461 cmd->index > ncf->n_uc + ncf->n_mc + ncf->n_mixed)
464 index = (cmd->index - 1) * ETH_ALEN;
465 spin_lock_irqsave(&nc->lock, flags);
467 set_bit(cmd->index - 1, bitmap);
468 memcpy(&ncf->addrs[index], cmd->mac, ETH_ALEN);
470 clear_bit(cmd->index - 1, bitmap);
471 memset(&ncf->addrs[index], 0, ETH_ALEN);
473 spin_unlock_irqrestore(&nc->lock, flags);
478 static int ncsi_rsp_handler_ebf(struct ncsi_request *nr)
480 struct ncsi_cmd_ebf_pkt *cmd;
481 struct ncsi_rsp_pkt *rsp;
482 struct ncsi_dev_priv *ndp = nr->ndp;
483 struct ncsi_channel *nc;
484 struct ncsi_channel_mode *ncm;
486 /* Find the package and channel */
487 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
488 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc);
492 /* Check if broadcast filter has been enabled */
493 ncm = &nc->modes[NCSI_MODE_BC];
497 /* Update to broadcast filter mode */
498 cmd = (struct ncsi_cmd_ebf_pkt *)skb_network_header(nr->cmd);
500 ncm->data[0] = ntohl(cmd->mode);
505 static int ncsi_rsp_handler_dbf(struct ncsi_request *nr)
507 struct ncsi_rsp_pkt *rsp;
508 struct ncsi_dev_priv *ndp = nr->ndp;
509 struct ncsi_channel *nc;
510 struct ncsi_channel_mode *ncm;
512 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
513 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
518 /* Check if broadcast filter isn't enabled */
519 ncm = &nc->modes[NCSI_MODE_BC];
523 /* Update to broadcast filter mode */
530 static int ncsi_rsp_handler_egmf(struct ncsi_request *nr)
532 struct ncsi_cmd_egmf_pkt *cmd;
533 struct ncsi_rsp_pkt *rsp;
534 struct ncsi_dev_priv *ndp = nr->ndp;
535 struct ncsi_channel *nc;
536 struct ncsi_channel_mode *ncm;
538 /* Find the channel */
539 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
540 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
545 /* Check if multicast filter has been enabled */
546 ncm = &nc->modes[NCSI_MODE_MC];
550 /* Update to multicast filter mode */
551 cmd = (struct ncsi_cmd_egmf_pkt *)skb_network_header(nr->cmd);
553 ncm->data[0] = ntohl(cmd->mode);
558 static int ncsi_rsp_handler_dgmf(struct ncsi_request *nr)
560 struct ncsi_rsp_pkt *rsp;
561 struct ncsi_dev_priv *ndp = nr->ndp;
562 struct ncsi_channel *nc;
563 struct ncsi_channel_mode *ncm;
565 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
566 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
571 /* Check if multicast filter has been enabled */
572 ncm = &nc->modes[NCSI_MODE_MC];
576 /* Update to multicast filter mode */
583 static int ncsi_rsp_handler_snfc(struct ncsi_request *nr)
585 struct ncsi_cmd_snfc_pkt *cmd;
586 struct ncsi_rsp_pkt *rsp;
587 struct ncsi_dev_priv *ndp = nr->ndp;
588 struct ncsi_channel *nc;
589 struct ncsi_channel_mode *ncm;
591 /* Find the channel */
592 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
593 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
598 /* Check if flow control has been enabled */
599 ncm = &nc->modes[NCSI_MODE_FC];
603 /* Update to flow control mode */
604 cmd = (struct ncsi_cmd_snfc_pkt *)skb_network_header(nr->cmd);
606 ncm->data[0] = cmd->mode;
611 /* Response handler for Mellanox command Get Mac Address */
612 static int ncsi_rsp_handler_oem_mlx_gma(struct ncsi_request *nr)
614 struct ncsi_dev_priv *ndp = nr->ndp;
615 struct net_device *ndev = ndp->ndev.dev;
616 const struct net_device_ops *ops = ndev->netdev_ops;
617 struct ncsi_rsp_oem_pkt *rsp;
618 struct sockaddr saddr;
621 /* Get the response header */
622 rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
624 saddr.sa_family = ndev->type;
625 ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
626 memcpy(saddr.sa_data, &rsp->data[MLX_MAC_ADDR_OFFSET], ETH_ALEN);
627 ret = ops->ndo_set_mac_address(ndev, &saddr);
629 netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n");
634 /* Response handler for Mellanox card */
635 static int ncsi_rsp_handler_oem_mlx(struct ncsi_request *nr)
637 struct ncsi_rsp_oem_mlx_pkt *mlx;
638 struct ncsi_rsp_oem_pkt *rsp;
640 /* Get the response header */
641 rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
642 mlx = (struct ncsi_rsp_oem_mlx_pkt *)(rsp->data);
644 if (mlx->cmd == NCSI_OEM_MLX_CMD_GMA &&
645 mlx->param == NCSI_OEM_MLX_CMD_GMA_PARAM)
646 return ncsi_rsp_handler_oem_mlx_gma(nr);
650 /* Response handler for Broadcom command Get Mac Address */
651 static int ncsi_rsp_handler_oem_bcm_gma(struct ncsi_request *nr)
653 struct ncsi_dev_priv *ndp = nr->ndp;
654 struct net_device *ndev = ndp->ndev.dev;
655 const struct net_device_ops *ops = ndev->netdev_ops;
656 struct ncsi_rsp_oem_pkt *rsp;
657 struct sockaddr saddr;
660 /* Get the response header */
661 rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
663 saddr.sa_family = ndev->type;
664 ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
665 memcpy(saddr.sa_data, &rsp->data[BCM_MAC_ADDR_OFFSET], ETH_ALEN);
666 /* Increase mac address by 1 for BMC's address */
667 eth_addr_inc((u8 *)saddr.sa_data);
668 if (!is_valid_ether_addr((const u8 *)saddr.sa_data))
671 ret = ops->ndo_set_mac_address(ndev, &saddr);
673 netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n");
678 /* Response handler for Broadcom card */
679 static int ncsi_rsp_handler_oem_bcm(struct ncsi_request *nr)
681 struct ncsi_rsp_oem_bcm_pkt *bcm;
682 struct ncsi_rsp_oem_pkt *rsp;
684 /* Get the response header */
685 rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
686 bcm = (struct ncsi_rsp_oem_bcm_pkt *)(rsp->data);
688 if (bcm->type == NCSI_OEM_BCM_CMD_GMA)
689 return ncsi_rsp_handler_oem_bcm_gma(nr);
693 static struct ncsi_rsp_oem_handler {
695 int (*handler)(struct ncsi_request *nr);
696 } ncsi_rsp_oem_handlers[] = {
697 { NCSI_OEM_MFR_MLX_ID, ncsi_rsp_handler_oem_mlx },
698 { NCSI_OEM_MFR_BCM_ID, ncsi_rsp_handler_oem_bcm }
701 /* Response handler for OEM command */
702 static int ncsi_rsp_handler_oem(struct ncsi_request *nr)
704 struct ncsi_rsp_oem_handler *nrh = NULL;
705 struct ncsi_rsp_oem_pkt *rsp;
706 unsigned int mfr_id, i;
708 /* Get the response header */
709 rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
710 mfr_id = ntohl(rsp->mfr_id);
712 /* Check for manufacturer id and Find the handler */
713 for (i = 0; i < ARRAY_SIZE(ncsi_rsp_oem_handlers); i++) {
714 if (ncsi_rsp_oem_handlers[i].mfr_id == mfr_id) {
715 if (ncsi_rsp_oem_handlers[i].handler)
716 nrh = &ncsi_rsp_oem_handlers[i];
725 netdev_err(nr->ndp->ndev.dev, "Received unrecognized OEM packet with MFR-ID (0x%x)\n",
730 /* Process the packet */
731 return nrh->handler(nr);
734 static int ncsi_rsp_handler_gvi(struct ncsi_request *nr)
736 struct ncsi_rsp_gvi_pkt *rsp;
737 struct ncsi_dev_priv *ndp = nr->ndp;
738 struct ncsi_channel *nc;
739 struct ncsi_channel_version *ncv;
742 /* Find the channel */
743 rsp = (struct ncsi_rsp_gvi_pkt *)skb_network_header(nr->rsp);
744 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
749 /* Update to channel's version info */
751 ncv->version = ntohl(rsp->ncsi_version);
752 ncv->alpha2 = rsp->alpha2;
753 memcpy(ncv->fw_name, rsp->fw_name, 12);
754 ncv->fw_version = ntohl(rsp->fw_version);
755 for (i = 0; i < ARRAY_SIZE(ncv->pci_ids); i++)
756 ncv->pci_ids[i] = ntohs(rsp->pci_ids[i]);
757 ncv->mf_id = ntohl(rsp->mf_id);
762 static int ncsi_rsp_handler_gc(struct ncsi_request *nr)
764 struct ncsi_rsp_gc_pkt *rsp;
765 struct ncsi_dev_priv *ndp = nr->ndp;
766 struct ncsi_channel *nc;
769 /* Find the channel */
770 rsp = (struct ncsi_rsp_gc_pkt *)skb_network_header(nr->rsp);
771 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
776 /* Update channel's capabilities */
777 nc->caps[NCSI_CAP_GENERIC].cap = ntohl(rsp->cap) &
778 NCSI_CAP_GENERIC_MASK;
779 nc->caps[NCSI_CAP_BC].cap = ntohl(rsp->bc_cap) &
781 nc->caps[NCSI_CAP_MC].cap = ntohl(rsp->mc_cap) &
783 nc->caps[NCSI_CAP_BUFFER].cap = ntohl(rsp->buf_cap);
784 nc->caps[NCSI_CAP_AEN].cap = ntohl(rsp->aen_cap) &
786 nc->caps[NCSI_CAP_VLAN].cap = rsp->vlan_mode &
789 size = (rsp->uc_cnt + rsp->mc_cnt + rsp->mixed_cnt) * ETH_ALEN;
790 nc->mac_filter.addrs = kzalloc(size, GFP_ATOMIC);
791 if (!nc->mac_filter.addrs)
793 nc->mac_filter.n_uc = rsp->uc_cnt;
794 nc->mac_filter.n_mc = rsp->mc_cnt;
795 nc->mac_filter.n_mixed = rsp->mixed_cnt;
797 nc->vlan_filter.vids = kcalloc(rsp->vlan_cnt,
798 sizeof(*nc->vlan_filter.vids),
800 if (!nc->vlan_filter.vids)
802 /* Set VLAN filters active so they are cleared in the first
803 * configuration state
805 nc->vlan_filter.bitmap = U64_MAX;
806 nc->vlan_filter.n_vids = rsp->vlan_cnt;
811 static int ncsi_rsp_handler_gp(struct ncsi_request *nr)
813 struct ncsi_channel_vlan_filter *ncvf;
814 struct ncsi_channel_mac_filter *ncmf;
815 struct ncsi_dev_priv *ndp = nr->ndp;
816 struct ncsi_rsp_gp_pkt *rsp;
817 struct ncsi_channel *nc;
818 unsigned short enable;
819 unsigned char *pdata;
824 /* Find the channel */
825 rsp = (struct ncsi_rsp_gp_pkt *)skb_network_header(nr->rsp);
826 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
831 /* Modes with explicit enabled indications */
832 if (ntohl(rsp->valid_modes) & 0x1) { /* BC filter mode */
833 nc->modes[NCSI_MODE_BC].enable = 1;
834 nc->modes[NCSI_MODE_BC].data[0] = ntohl(rsp->bc_mode);
836 if (ntohl(rsp->valid_modes) & 0x2) /* Channel enabled */
837 nc->modes[NCSI_MODE_ENABLE].enable = 1;
838 if (ntohl(rsp->valid_modes) & 0x4) /* Channel Tx enabled */
839 nc->modes[NCSI_MODE_TX_ENABLE].enable = 1;
840 if (ntohl(rsp->valid_modes) & 0x8) /* MC filter mode */
841 nc->modes[NCSI_MODE_MC].enable = 1;
843 /* Modes without explicit enabled indications */
844 nc->modes[NCSI_MODE_LINK].enable = 1;
845 nc->modes[NCSI_MODE_LINK].data[0] = ntohl(rsp->link_mode);
846 nc->modes[NCSI_MODE_VLAN].enable = 1;
847 nc->modes[NCSI_MODE_VLAN].data[0] = rsp->vlan_mode;
848 nc->modes[NCSI_MODE_FC].enable = 1;
849 nc->modes[NCSI_MODE_FC].data[0] = rsp->fc_mode;
850 nc->modes[NCSI_MODE_AEN].enable = 1;
851 nc->modes[NCSI_MODE_AEN].data[0] = ntohl(rsp->aen_mode);
853 /* MAC addresses filter table */
854 pdata = (unsigned char *)rsp + 48;
855 enable = rsp->mac_enable;
856 ncmf = &nc->mac_filter;
857 spin_lock_irqsave(&nc->lock, flags);
858 bitmap = &ncmf->bitmap;
859 for (i = 0; i < rsp->mac_cnt; i++, pdata += 6) {
860 if (!(enable & (0x1 << i)))
861 clear_bit(i, bitmap);
865 memcpy(&ncmf->addrs[i * ETH_ALEN], pdata, ETH_ALEN);
867 spin_unlock_irqrestore(&nc->lock, flags);
869 /* VLAN filter table */
870 enable = ntohs(rsp->vlan_enable);
871 ncvf = &nc->vlan_filter;
872 bitmap = &ncvf->bitmap;
873 spin_lock_irqsave(&nc->lock, flags);
874 for (i = 0; i < rsp->vlan_cnt; i++, pdata += 2) {
875 if (!(enable & (0x1 << i)))
876 clear_bit(i, bitmap);
880 ncvf->vids[i] = ntohs(*(__be16 *)pdata);
882 spin_unlock_irqrestore(&nc->lock, flags);
887 static int ncsi_rsp_handler_gcps(struct ncsi_request *nr)
889 struct ncsi_rsp_gcps_pkt *rsp;
890 struct ncsi_dev_priv *ndp = nr->ndp;
891 struct ncsi_channel *nc;
892 struct ncsi_channel_stats *ncs;
894 /* Find the channel */
895 rsp = (struct ncsi_rsp_gcps_pkt *)skb_network_header(nr->rsp);
896 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
901 /* Update HNC's statistics */
903 ncs->hnc_cnt_hi = ntohl(rsp->cnt_hi);
904 ncs->hnc_cnt_lo = ntohl(rsp->cnt_lo);
905 ncs->hnc_rx_bytes = ntohl(rsp->rx_bytes);
906 ncs->hnc_tx_bytes = ntohl(rsp->tx_bytes);
907 ncs->hnc_rx_uc_pkts = ntohl(rsp->rx_uc_pkts);
908 ncs->hnc_rx_mc_pkts = ntohl(rsp->rx_mc_pkts);
909 ncs->hnc_rx_bc_pkts = ntohl(rsp->rx_bc_pkts);
910 ncs->hnc_tx_uc_pkts = ntohl(rsp->tx_uc_pkts);
911 ncs->hnc_tx_mc_pkts = ntohl(rsp->tx_mc_pkts);
912 ncs->hnc_tx_bc_pkts = ntohl(rsp->tx_bc_pkts);
913 ncs->hnc_fcs_err = ntohl(rsp->fcs_err);
914 ncs->hnc_align_err = ntohl(rsp->align_err);
915 ncs->hnc_false_carrier = ntohl(rsp->false_carrier);
916 ncs->hnc_runt_pkts = ntohl(rsp->runt_pkts);
917 ncs->hnc_jabber_pkts = ntohl(rsp->jabber_pkts);
918 ncs->hnc_rx_pause_xon = ntohl(rsp->rx_pause_xon);
919 ncs->hnc_rx_pause_xoff = ntohl(rsp->rx_pause_xoff);
920 ncs->hnc_tx_pause_xon = ntohl(rsp->tx_pause_xon);
921 ncs->hnc_tx_pause_xoff = ntohl(rsp->tx_pause_xoff);
922 ncs->hnc_tx_s_collision = ntohl(rsp->tx_s_collision);
923 ncs->hnc_tx_m_collision = ntohl(rsp->tx_m_collision);
924 ncs->hnc_l_collision = ntohl(rsp->l_collision);
925 ncs->hnc_e_collision = ntohl(rsp->e_collision);
926 ncs->hnc_rx_ctl_frames = ntohl(rsp->rx_ctl_frames);
927 ncs->hnc_rx_64_frames = ntohl(rsp->rx_64_frames);
928 ncs->hnc_rx_127_frames = ntohl(rsp->rx_127_frames);
929 ncs->hnc_rx_255_frames = ntohl(rsp->rx_255_frames);
930 ncs->hnc_rx_511_frames = ntohl(rsp->rx_511_frames);
931 ncs->hnc_rx_1023_frames = ntohl(rsp->rx_1023_frames);
932 ncs->hnc_rx_1522_frames = ntohl(rsp->rx_1522_frames);
933 ncs->hnc_rx_9022_frames = ntohl(rsp->rx_9022_frames);
934 ncs->hnc_tx_64_frames = ntohl(rsp->tx_64_frames);
935 ncs->hnc_tx_127_frames = ntohl(rsp->tx_127_frames);
936 ncs->hnc_tx_255_frames = ntohl(rsp->tx_255_frames);
937 ncs->hnc_tx_511_frames = ntohl(rsp->tx_511_frames);
938 ncs->hnc_tx_1023_frames = ntohl(rsp->tx_1023_frames);
939 ncs->hnc_tx_1522_frames = ntohl(rsp->tx_1522_frames);
940 ncs->hnc_tx_9022_frames = ntohl(rsp->tx_9022_frames);
941 ncs->hnc_rx_valid_bytes = ntohl(rsp->rx_valid_bytes);
942 ncs->hnc_rx_runt_pkts = ntohl(rsp->rx_runt_pkts);
943 ncs->hnc_rx_jabber_pkts = ntohl(rsp->rx_jabber_pkts);
948 static int ncsi_rsp_handler_gns(struct ncsi_request *nr)
950 struct ncsi_rsp_gns_pkt *rsp;
951 struct ncsi_dev_priv *ndp = nr->ndp;
952 struct ncsi_channel *nc;
953 struct ncsi_channel_stats *ncs;
955 /* Find the channel */
956 rsp = (struct ncsi_rsp_gns_pkt *)skb_network_header(nr->rsp);
957 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
962 /* Update HNC's statistics */
964 ncs->ncsi_rx_cmds = ntohl(rsp->rx_cmds);
965 ncs->ncsi_dropped_cmds = ntohl(rsp->dropped_cmds);
966 ncs->ncsi_cmd_type_errs = ntohl(rsp->cmd_type_errs);
967 ncs->ncsi_cmd_csum_errs = ntohl(rsp->cmd_csum_errs);
968 ncs->ncsi_rx_pkts = ntohl(rsp->rx_pkts);
969 ncs->ncsi_tx_pkts = ntohl(rsp->tx_pkts);
970 ncs->ncsi_tx_aen_pkts = ntohl(rsp->tx_aen_pkts);
975 static int ncsi_rsp_handler_gnpts(struct ncsi_request *nr)
977 struct ncsi_rsp_gnpts_pkt *rsp;
978 struct ncsi_dev_priv *ndp = nr->ndp;
979 struct ncsi_channel *nc;
980 struct ncsi_channel_stats *ncs;
982 /* Find the channel */
983 rsp = (struct ncsi_rsp_gnpts_pkt *)skb_network_header(nr->rsp);
984 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
989 /* Update HNC's statistics */
991 ncs->pt_tx_pkts = ntohl(rsp->tx_pkts);
992 ncs->pt_tx_dropped = ntohl(rsp->tx_dropped);
993 ncs->pt_tx_channel_err = ntohl(rsp->tx_channel_err);
994 ncs->pt_tx_us_err = ntohl(rsp->tx_us_err);
995 ncs->pt_rx_pkts = ntohl(rsp->rx_pkts);
996 ncs->pt_rx_dropped = ntohl(rsp->rx_dropped);
997 ncs->pt_rx_channel_err = ntohl(rsp->rx_channel_err);
998 ncs->pt_rx_us_err = ntohl(rsp->rx_us_err);
999 ncs->pt_rx_os_err = ntohl(rsp->rx_os_err);
1004 static int ncsi_rsp_handler_gps(struct ncsi_request *nr)
1006 struct ncsi_rsp_gps_pkt *rsp;
1007 struct ncsi_dev_priv *ndp = nr->ndp;
1008 struct ncsi_package *np;
1010 /* Find the package */
1011 rsp = (struct ncsi_rsp_gps_pkt *)skb_network_header(nr->rsp);
1012 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
1020 static int ncsi_rsp_handler_gpuuid(struct ncsi_request *nr)
1022 struct ncsi_rsp_gpuuid_pkt *rsp;
1023 struct ncsi_dev_priv *ndp = nr->ndp;
1024 struct ncsi_package *np;
1026 /* Find the package */
1027 rsp = (struct ncsi_rsp_gpuuid_pkt *)skb_network_header(nr->rsp);
1028 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
1033 memcpy(np->uuid, rsp->uuid, sizeof(rsp->uuid));
1038 static int ncsi_rsp_handler_netlink(struct ncsi_request *nr)
1040 struct ncsi_dev_priv *ndp = nr->ndp;
1041 struct ncsi_rsp_pkt *rsp;
1042 struct ncsi_package *np;
1043 struct ncsi_channel *nc;
1046 /* Find the package */
1047 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
1048 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
1053 ret = ncsi_send_netlink_rsp(nr, np, nc);
1058 static struct ncsi_rsp_handler {
1061 int (*handler)(struct ncsi_request *nr);
1062 } ncsi_rsp_handlers[] = {
1063 { NCSI_PKT_RSP_CIS, 4, ncsi_rsp_handler_cis },
1064 { NCSI_PKT_RSP_SP, 4, ncsi_rsp_handler_sp },
1065 { NCSI_PKT_RSP_DP, 4, ncsi_rsp_handler_dp },
1066 { NCSI_PKT_RSP_EC, 4, ncsi_rsp_handler_ec },
1067 { NCSI_PKT_RSP_DC, 4, ncsi_rsp_handler_dc },
1068 { NCSI_PKT_RSP_RC, 4, ncsi_rsp_handler_rc },
1069 { NCSI_PKT_RSP_ECNT, 4, ncsi_rsp_handler_ecnt },
1070 { NCSI_PKT_RSP_DCNT, 4, ncsi_rsp_handler_dcnt },
1071 { NCSI_PKT_RSP_AE, 4, ncsi_rsp_handler_ae },
1072 { NCSI_PKT_RSP_SL, 4, ncsi_rsp_handler_sl },
1073 { NCSI_PKT_RSP_GLS, 16, ncsi_rsp_handler_gls },
1074 { NCSI_PKT_RSP_SVF, 4, ncsi_rsp_handler_svf },
1075 { NCSI_PKT_RSP_EV, 4, ncsi_rsp_handler_ev },
1076 { NCSI_PKT_RSP_DV, 4, ncsi_rsp_handler_dv },
1077 { NCSI_PKT_RSP_SMA, 4, ncsi_rsp_handler_sma },
1078 { NCSI_PKT_RSP_EBF, 4, ncsi_rsp_handler_ebf },
1079 { NCSI_PKT_RSP_DBF, 4, ncsi_rsp_handler_dbf },
1080 { NCSI_PKT_RSP_EGMF, 4, ncsi_rsp_handler_egmf },
1081 { NCSI_PKT_RSP_DGMF, 4, ncsi_rsp_handler_dgmf },
1082 { NCSI_PKT_RSP_SNFC, 4, ncsi_rsp_handler_snfc },
1083 { NCSI_PKT_RSP_GVI, 40, ncsi_rsp_handler_gvi },
1084 { NCSI_PKT_RSP_GC, 32, ncsi_rsp_handler_gc },
1085 { NCSI_PKT_RSP_GP, -1, ncsi_rsp_handler_gp },
1086 { NCSI_PKT_RSP_GCPS, 172, ncsi_rsp_handler_gcps },
1087 { NCSI_PKT_RSP_GNS, 172, ncsi_rsp_handler_gns },
1088 { NCSI_PKT_RSP_GNPTS, 172, ncsi_rsp_handler_gnpts },
1089 { NCSI_PKT_RSP_GPS, 8, ncsi_rsp_handler_gps },
1090 { NCSI_PKT_RSP_OEM, -1, ncsi_rsp_handler_oem },
1091 { NCSI_PKT_RSP_PLDM, 0, NULL },
1092 { NCSI_PKT_RSP_GPUUID, 20, ncsi_rsp_handler_gpuuid }
1095 int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev,
1096 struct packet_type *pt, struct net_device *orig_dev)
1098 struct ncsi_rsp_handler *nrh = NULL;
1099 struct ncsi_dev *nd;
1100 struct ncsi_dev_priv *ndp;
1101 struct ncsi_request *nr;
1102 struct ncsi_pkt_hdr *hdr;
1103 unsigned long flags;
1104 int payload, i, ret;
1106 /* Find the NCSI device */
1107 nd = ncsi_find_dev(dev);
1108 ndp = nd ? TO_NCSI_DEV_PRIV(nd) : NULL;
1112 /* Check if it is AEN packet */
1113 hdr = (struct ncsi_pkt_hdr *)skb_network_header(skb);
1114 if (hdr->type == NCSI_PKT_AEN)
1115 return ncsi_aen_handler(ndp, skb);
1117 /* Find the handler */
1118 for (i = 0; i < ARRAY_SIZE(ncsi_rsp_handlers); i++) {
1119 if (ncsi_rsp_handlers[i].type == hdr->type) {
1120 if (ncsi_rsp_handlers[i].handler)
1121 nrh = &ncsi_rsp_handlers[i];
1130 netdev_err(nd->dev, "Received unrecognized packet (0x%x)\n",
1135 /* Associate with the request */
1136 spin_lock_irqsave(&ndp->lock, flags);
1137 nr = &ndp->requests[hdr->id];
1139 spin_unlock_irqrestore(&ndp->lock, flags);
1145 spin_unlock_irqrestore(&ndp->lock, flags);
1150 /* Validate the packet */
1151 spin_unlock_irqrestore(&ndp->lock, flags);
1152 payload = nrh->payload;
1154 payload = ntohs(hdr->length);
1155 ret = ncsi_validate_rsp_pkt(nr, payload);
1157 netdev_warn(ndp->ndev.dev,
1158 "NCSI: 'bad' packet ignored for type 0x%x\n",
1161 if (nr->flags == NCSI_REQ_FLAG_NETLINK_DRIVEN) {
1165 ncsi_send_netlink_err(ndp->ndev.dev,
1174 /* Process the packet */
1175 ret = nrh->handler(nr);
1177 netdev_err(ndp->ndev.dev,
1178 "NCSI: Handler for packet type 0x%x returned %d\n",
1182 if (nr->flags == NCSI_REQ_FLAG_NETLINK_DRIVEN) {
1183 ret = ncsi_rsp_handler_netlink(nr);
1185 netdev_err(ndp->ndev.dev,
1186 "NCSI: Netlink handler for packet type 0x%x returned %d\n",
1192 ncsi_free_request(nr);