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 %04xh, %04xh\n",
51 ntohs(h->code), ntohs(h->reason));
55 /* Validate checksum, which might be zeroes if the
56 * sender doesn't support checksum according to NCSI
59 pchecksum = (__be32 *)((void *)(h + 1) + ALIGN(payload, 4) - 4);
60 if (ntohl(*pchecksum) == 0)
63 checksum = ncsi_calculate_checksum((unsigned char *)h,
64 sizeof(*h) + payload - 4);
66 if (*pchecksum != htonl(checksum)) {
67 netdev_dbg(nr->ndp->ndev.dev,
68 "NCSI: checksum mismatched; recd: %08x calc: %08x\n",
69 *pchecksum, htonl(checksum));
76 static int ncsi_rsp_handler_cis(struct ncsi_request *nr)
78 struct ncsi_rsp_pkt *rsp;
79 struct ncsi_dev_priv *ndp = nr->ndp;
80 struct ncsi_package *np;
81 struct ncsi_channel *nc;
84 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
85 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, &nc);
87 if (ndp->flags & NCSI_DEV_PROBED)
90 id = NCSI_CHANNEL_INDEX(rsp->rsp.common.channel);
91 nc = ncsi_add_channel(np, id);
94 return nc ? 0 : -ENODEV;
97 static int ncsi_rsp_handler_sp(struct ncsi_request *nr)
99 struct ncsi_rsp_pkt *rsp;
100 struct ncsi_dev_priv *ndp = nr->ndp;
101 struct ncsi_package *np;
104 /* Add the package if it's not existing. Otherwise,
105 * to change the state of its child channels.
107 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
108 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
111 if (ndp->flags & NCSI_DEV_PROBED)
114 id = NCSI_PACKAGE_INDEX(rsp->rsp.common.channel);
115 np = ncsi_add_package(ndp, id);
123 static int ncsi_rsp_handler_dp(struct ncsi_request *nr)
125 struct ncsi_rsp_pkt *rsp;
126 struct ncsi_dev_priv *ndp = nr->ndp;
127 struct ncsi_package *np;
128 struct ncsi_channel *nc;
131 /* Find the package */
132 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
133 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
138 /* Change state of all channels attached to the package */
139 NCSI_FOR_EACH_CHANNEL(np, nc) {
140 spin_lock_irqsave(&nc->lock, flags);
141 nc->state = NCSI_CHANNEL_INACTIVE;
142 spin_unlock_irqrestore(&nc->lock, flags);
148 static int ncsi_rsp_handler_ec(struct ncsi_request *nr)
150 struct ncsi_rsp_pkt *rsp;
151 struct ncsi_dev_priv *ndp = nr->ndp;
152 struct ncsi_channel *nc;
153 struct ncsi_channel_mode *ncm;
155 /* Find the package and channel */
156 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
157 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
162 ncm = &nc->modes[NCSI_MODE_ENABLE];
170 static int ncsi_rsp_handler_dc(struct ncsi_request *nr)
172 struct ncsi_rsp_pkt *rsp;
173 struct ncsi_dev_priv *ndp = nr->ndp;
174 struct ncsi_channel *nc;
175 struct ncsi_channel_mode *ncm;
178 ret = ncsi_validate_rsp_pkt(nr, 4);
182 /* Find the package and channel */
183 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
184 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
189 ncm = &nc->modes[NCSI_MODE_ENABLE];
197 static int ncsi_rsp_handler_rc(struct ncsi_request *nr)
199 struct ncsi_rsp_pkt *rsp;
200 struct ncsi_dev_priv *ndp = nr->ndp;
201 struct ncsi_channel *nc;
204 /* Find the package and channel */
205 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
206 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
211 /* Update state for the specified channel */
212 spin_lock_irqsave(&nc->lock, flags);
213 nc->state = NCSI_CHANNEL_INACTIVE;
214 spin_unlock_irqrestore(&nc->lock, flags);
219 static int ncsi_rsp_handler_ecnt(struct ncsi_request *nr)
221 struct ncsi_rsp_pkt *rsp;
222 struct ncsi_dev_priv *ndp = nr->ndp;
223 struct ncsi_channel *nc;
224 struct ncsi_channel_mode *ncm;
226 /* Find the package and channel */
227 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
228 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
233 ncm = &nc->modes[NCSI_MODE_TX_ENABLE];
241 static int ncsi_rsp_handler_dcnt(struct ncsi_request *nr)
243 struct ncsi_rsp_pkt *rsp;
244 struct ncsi_dev_priv *ndp = nr->ndp;
245 struct ncsi_channel *nc;
246 struct ncsi_channel_mode *ncm;
248 /* Find the package and channel */
249 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
250 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
255 ncm = &nc->modes[NCSI_MODE_TX_ENABLE];
263 static int ncsi_rsp_handler_ae(struct ncsi_request *nr)
265 struct ncsi_cmd_ae_pkt *cmd;
266 struct ncsi_rsp_pkt *rsp;
267 struct ncsi_dev_priv *ndp = nr->ndp;
268 struct ncsi_channel *nc;
269 struct ncsi_channel_mode *ncm;
271 /* Find the package and channel */
272 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
273 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
278 /* Check if the AEN has been enabled */
279 ncm = &nc->modes[NCSI_MODE_AEN];
283 /* Update to AEN configuration */
284 cmd = (struct ncsi_cmd_ae_pkt *)skb_network_header(nr->cmd);
286 ncm->data[0] = cmd->mc_id;
287 ncm->data[1] = ntohl(cmd->mode);
292 static int ncsi_rsp_handler_sl(struct ncsi_request *nr)
294 struct ncsi_cmd_sl_pkt *cmd;
295 struct ncsi_rsp_pkt *rsp;
296 struct ncsi_dev_priv *ndp = nr->ndp;
297 struct ncsi_channel *nc;
298 struct ncsi_channel_mode *ncm;
300 /* Find the package and channel */
301 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
302 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
307 cmd = (struct ncsi_cmd_sl_pkt *)skb_network_header(nr->cmd);
308 ncm = &nc->modes[NCSI_MODE_LINK];
309 ncm->data[0] = ntohl(cmd->mode);
310 ncm->data[1] = ntohl(cmd->oem_mode);
315 static int ncsi_rsp_handler_gls(struct ncsi_request *nr)
317 struct ncsi_rsp_gls_pkt *rsp;
318 struct ncsi_dev_priv *ndp = nr->ndp;
319 struct ncsi_channel *nc;
320 struct ncsi_channel_mode *ncm;
323 /* Find the package and channel */
324 rsp = (struct ncsi_rsp_gls_pkt *)skb_network_header(nr->rsp);
325 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
330 ncm = &nc->modes[NCSI_MODE_LINK];
331 ncm->data[2] = ntohl(rsp->status);
332 ncm->data[3] = ntohl(rsp->other);
333 ncm->data[4] = ntohl(rsp->oem_status);
335 if (nr->flags & NCSI_REQ_FLAG_EVENT_DRIVEN)
338 /* Reset the channel monitor if it has been enabled */
339 spin_lock_irqsave(&nc->lock, flags);
340 nc->monitor.state = NCSI_CHANNEL_MONITOR_START;
341 spin_unlock_irqrestore(&nc->lock, flags);
346 static int ncsi_rsp_handler_svf(struct ncsi_request *nr)
348 struct ncsi_cmd_svf_pkt *cmd;
349 struct ncsi_rsp_pkt *rsp;
350 struct ncsi_dev_priv *ndp = nr->ndp;
351 struct ncsi_channel *nc;
352 struct ncsi_channel_vlan_filter *ncf;
356 /* Find the package and channel */
357 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
358 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
363 cmd = (struct ncsi_cmd_svf_pkt *)skb_network_header(nr->cmd);
364 ncf = &nc->vlan_filter;
365 if (cmd->index == 0 || cmd->index > ncf->n_vids)
368 /* Add or remove the VLAN filter. Remember HW indexes from 1 */
369 spin_lock_irqsave(&nc->lock, flags);
370 bitmap = &ncf->bitmap;
371 if (!(cmd->enable & 0x1)) {
372 if (test_and_clear_bit(cmd->index - 1, bitmap))
373 ncf->vids[cmd->index - 1] = 0;
375 set_bit(cmd->index - 1, bitmap);
376 ncf->vids[cmd->index - 1] = ntohs(cmd->vlan);
378 spin_unlock_irqrestore(&nc->lock, flags);
383 static int ncsi_rsp_handler_ev(struct ncsi_request *nr)
385 struct ncsi_cmd_ev_pkt *cmd;
386 struct ncsi_rsp_pkt *rsp;
387 struct ncsi_dev_priv *ndp = nr->ndp;
388 struct ncsi_channel *nc;
389 struct ncsi_channel_mode *ncm;
391 /* Find the package and channel */
392 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
393 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
398 /* Check if VLAN mode has been enabled */
399 ncm = &nc->modes[NCSI_MODE_VLAN];
403 /* Update to VLAN mode */
404 cmd = (struct ncsi_cmd_ev_pkt *)skb_network_header(nr->cmd);
406 ncm->data[0] = ntohl((__force __be32)cmd->mode);
411 static int ncsi_rsp_handler_dv(struct ncsi_request *nr)
413 struct ncsi_rsp_pkt *rsp;
414 struct ncsi_dev_priv *ndp = nr->ndp;
415 struct ncsi_channel *nc;
416 struct ncsi_channel_mode *ncm;
418 /* Find the package and channel */
419 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
420 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
425 /* Check if VLAN mode has been enabled */
426 ncm = &nc->modes[NCSI_MODE_VLAN];
430 /* Update to VLAN mode */
435 static int ncsi_rsp_handler_sma(struct ncsi_request *nr)
437 struct ncsi_cmd_sma_pkt *cmd;
438 struct ncsi_rsp_pkt *rsp;
439 struct ncsi_dev_priv *ndp = nr->ndp;
440 struct ncsi_channel *nc;
441 struct ncsi_channel_mac_filter *ncf;
448 /* Find the package and channel */
449 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
450 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
455 /* According to NCSI spec 1.01, the mixed filter table
456 * isn't supported yet.
458 cmd = (struct ncsi_cmd_sma_pkt *)skb_network_header(nr->cmd);
459 enabled = cmd->at_e & 0x1;
460 ncf = &nc->mac_filter;
461 bitmap = &ncf->bitmap;
463 if (cmd->index == 0 ||
464 cmd->index > ncf->n_uc + ncf->n_mc + ncf->n_mixed)
467 index = (cmd->index - 1) * ETH_ALEN;
468 spin_lock_irqsave(&nc->lock, flags);
470 set_bit(cmd->index - 1, bitmap);
471 memcpy(&ncf->addrs[index], cmd->mac, ETH_ALEN);
473 clear_bit(cmd->index - 1, bitmap);
474 eth_zero_addr(&ncf->addrs[index]);
476 spin_unlock_irqrestore(&nc->lock, flags);
481 static int ncsi_rsp_handler_ebf(struct ncsi_request *nr)
483 struct ncsi_cmd_ebf_pkt *cmd;
484 struct ncsi_rsp_pkt *rsp;
485 struct ncsi_dev_priv *ndp = nr->ndp;
486 struct ncsi_channel *nc;
487 struct ncsi_channel_mode *ncm;
489 /* Find the package and channel */
490 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
491 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc);
495 /* Check if broadcast filter has been enabled */
496 ncm = &nc->modes[NCSI_MODE_BC];
500 /* Update to broadcast filter mode */
501 cmd = (struct ncsi_cmd_ebf_pkt *)skb_network_header(nr->cmd);
503 ncm->data[0] = ntohl(cmd->mode);
508 static int ncsi_rsp_handler_dbf(struct ncsi_request *nr)
510 struct ncsi_rsp_pkt *rsp;
511 struct ncsi_dev_priv *ndp = nr->ndp;
512 struct ncsi_channel *nc;
513 struct ncsi_channel_mode *ncm;
515 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
516 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
521 /* Check if broadcast filter isn't enabled */
522 ncm = &nc->modes[NCSI_MODE_BC];
526 /* Update to broadcast filter mode */
533 static int ncsi_rsp_handler_egmf(struct ncsi_request *nr)
535 struct ncsi_cmd_egmf_pkt *cmd;
536 struct ncsi_rsp_pkt *rsp;
537 struct ncsi_dev_priv *ndp = nr->ndp;
538 struct ncsi_channel *nc;
539 struct ncsi_channel_mode *ncm;
541 /* Find the channel */
542 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
543 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
548 /* Check if multicast filter has been enabled */
549 ncm = &nc->modes[NCSI_MODE_MC];
553 /* Update to multicast filter mode */
554 cmd = (struct ncsi_cmd_egmf_pkt *)skb_network_header(nr->cmd);
556 ncm->data[0] = ntohl(cmd->mode);
561 static int ncsi_rsp_handler_dgmf(struct ncsi_request *nr)
563 struct ncsi_rsp_pkt *rsp;
564 struct ncsi_dev_priv *ndp = nr->ndp;
565 struct ncsi_channel *nc;
566 struct ncsi_channel_mode *ncm;
568 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
569 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
574 /* Check if multicast filter has been enabled */
575 ncm = &nc->modes[NCSI_MODE_MC];
579 /* Update to multicast filter mode */
586 static int ncsi_rsp_handler_snfc(struct ncsi_request *nr)
588 struct ncsi_cmd_snfc_pkt *cmd;
589 struct ncsi_rsp_pkt *rsp;
590 struct ncsi_dev_priv *ndp = nr->ndp;
591 struct ncsi_channel *nc;
592 struct ncsi_channel_mode *ncm;
594 /* Find the channel */
595 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
596 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
601 /* Check if flow control has been enabled */
602 ncm = &nc->modes[NCSI_MODE_FC];
606 /* Update to flow control mode */
607 cmd = (struct ncsi_cmd_snfc_pkt *)skb_network_header(nr->cmd);
609 ncm->data[0] = cmd->mode;
614 /* Response handler for Get Mac Address command */
615 static int ncsi_rsp_handler_oem_gma(struct ncsi_request *nr, int mfr_id)
617 struct ncsi_dev_priv *ndp = nr->ndp;
618 struct net_device *ndev = ndp->ndev.dev;
619 struct ncsi_rsp_oem_pkt *rsp;
620 struct sockaddr saddr;
621 u32 mac_addr_off = 0;
624 /* Get the response header */
625 rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
627 saddr.sa_family = ndev->type;
628 ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
629 if (mfr_id == NCSI_OEM_MFR_BCM_ID)
630 mac_addr_off = BCM_MAC_ADDR_OFFSET;
631 else if (mfr_id == NCSI_OEM_MFR_MLX_ID)
632 mac_addr_off = MLX_MAC_ADDR_OFFSET;
633 else if (mfr_id == NCSI_OEM_MFR_INTEL_ID)
634 mac_addr_off = INTEL_MAC_ADDR_OFFSET;
636 memcpy(saddr.sa_data, &rsp->data[mac_addr_off], ETH_ALEN);
637 if (mfr_id == NCSI_OEM_MFR_BCM_ID || mfr_id == NCSI_OEM_MFR_INTEL_ID)
638 eth_addr_inc((u8 *)saddr.sa_data);
639 if (!is_valid_ether_addr((const u8 *)saddr.sa_data))
642 /* Set the flag for GMA command which should only be called once */
646 ret = dev_set_mac_address(ndev, &saddr, NULL);
649 netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n");
654 /* Response handler for Mellanox card */
655 static int ncsi_rsp_handler_oem_mlx(struct ncsi_request *nr)
657 struct ncsi_rsp_oem_mlx_pkt *mlx;
658 struct ncsi_rsp_oem_pkt *rsp;
660 /* Get the response header */
661 rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
662 mlx = (struct ncsi_rsp_oem_mlx_pkt *)(rsp->data);
664 if (mlx->cmd == NCSI_OEM_MLX_CMD_GMA &&
665 mlx->param == NCSI_OEM_MLX_CMD_GMA_PARAM)
666 return ncsi_rsp_handler_oem_gma(nr, NCSI_OEM_MFR_MLX_ID);
670 /* Response handler for Broadcom card */
671 static int ncsi_rsp_handler_oem_bcm(struct ncsi_request *nr)
673 struct ncsi_rsp_oem_bcm_pkt *bcm;
674 struct ncsi_rsp_oem_pkt *rsp;
676 /* Get the response header */
677 rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
678 bcm = (struct ncsi_rsp_oem_bcm_pkt *)(rsp->data);
680 if (bcm->type == NCSI_OEM_BCM_CMD_GMA)
681 return ncsi_rsp_handler_oem_gma(nr, NCSI_OEM_MFR_BCM_ID);
685 /* Response handler for Intel card */
686 static int ncsi_rsp_handler_oem_intel(struct ncsi_request *nr)
688 struct ncsi_rsp_oem_intel_pkt *intel;
689 struct ncsi_rsp_oem_pkt *rsp;
691 /* Get the response header */
692 rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
693 intel = (struct ncsi_rsp_oem_intel_pkt *)(rsp->data);
695 if (intel->cmd == NCSI_OEM_INTEL_CMD_GMA)
696 return ncsi_rsp_handler_oem_gma(nr, NCSI_OEM_MFR_INTEL_ID);
701 static struct ncsi_rsp_oem_handler {
703 int (*handler)(struct ncsi_request *nr);
704 } ncsi_rsp_oem_handlers[] = {
705 { NCSI_OEM_MFR_MLX_ID, ncsi_rsp_handler_oem_mlx },
706 { NCSI_OEM_MFR_BCM_ID, ncsi_rsp_handler_oem_bcm },
707 { NCSI_OEM_MFR_INTEL_ID, ncsi_rsp_handler_oem_intel }
710 /* Response handler for OEM command */
711 static int ncsi_rsp_handler_oem(struct ncsi_request *nr)
713 struct ncsi_rsp_oem_handler *nrh = NULL;
714 struct ncsi_rsp_oem_pkt *rsp;
715 unsigned int mfr_id, i;
717 /* Get the response header */
718 rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
719 mfr_id = ntohl(rsp->mfr_id);
721 /* Check for manufacturer id and Find the handler */
722 for (i = 0; i < ARRAY_SIZE(ncsi_rsp_oem_handlers); i++) {
723 if (ncsi_rsp_oem_handlers[i].mfr_id == mfr_id) {
724 if (ncsi_rsp_oem_handlers[i].handler)
725 nrh = &ncsi_rsp_oem_handlers[i];
734 netdev_err(nr->ndp->ndev.dev, "Received unrecognized OEM packet with MFR-ID (0x%x)\n",
739 /* Process the packet */
740 return nrh->handler(nr);
743 static int ncsi_rsp_handler_gvi(struct ncsi_request *nr)
745 struct ncsi_rsp_gvi_pkt *rsp;
746 struct ncsi_dev_priv *ndp = nr->ndp;
747 struct ncsi_channel *nc;
748 struct ncsi_channel_version *ncv;
751 /* Find the channel */
752 rsp = (struct ncsi_rsp_gvi_pkt *)skb_network_header(nr->rsp);
753 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
758 /* Update to channel's version info */
760 ncv->version = ntohl(rsp->ncsi_version);
761 ncv->alpha2 = rsp->alpha2;
762 memcpy(ncv->fw_name, rsp->fw_name, 12);
763 ncv->fw_version = ntohl(rsp->fw_version);
764 for (i = 0; i < ARRAY_SIZE(ncv->pci_ids); i++)
765 ncv->pci_ids[i] = ntohs(rsp->pci_ids[i]);
766 ncv->mf_id = ntohl(rsp->mf_id);
771 static int ncsi_rsp_handler_gc(struct ncsi_request *nr)
773 struct ncsi_rsp_gc_pkt *rsp;
774 struct ncsi_dev_priv *ndp = nr->ndp;
775 struct ncsi_channel *nc;
778 /* Find the channel */
779 rsp = (struct ncsi_rsp_gc_pkt *)skb_network_header(nr->rsp);
780 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
785 /* Update channel's capabilities */
786 nc->caps[NCSI_CAP_GENERIC].cap = ntohl(rsp->cap) &
787 NCSI_CAP_GENERIC_MASK;
788 nc->caps[NCSI_CAP_BC].cap = ntohl(rsp->bc_cap) &
790 nc->caps[NCSI_CAP_MC].cap = ntohl(rsp->mc_cap) &
792 nc->caps[NCSI_CAP_BUFFER].cap = ntohl(rsp->buf_cap);
793 nc->caps[NCSI_CAP_AEN].cap = ntohl(rsp->aen_cap) &
795 nc->caps[NCSI_CAP_VLAN].cap = rsp->vlan_mode &
798 size = (rsp->uc_cnt + rsp->mc_cnt + rsp->mixed_cnt) * ETH_ALEN;
799 nc->mac_filter.addrs = kzalloc(size, GFP_ATOMIC);
800 if (!nc->mac_filter.addrs)
802 nc->mac_filter.n_uc = rsp->uc_cnt;
803 nc->mac_filter.n_mc = rsp->mc_cnt;
804 nc->mac_filter.n_mixed = rsp->mixed_cnt;
806 nc->vlan_filter.vids = kcalloc(rsp->vlan_cnt,
807 sizeof(*nc->vlan_filter.vids),
809 if (!nc->vlan_filter.vids)
811 /* Set VLAN filters active so they are cleared in the first
812 * configuration state
814 nc->vlan_filter.bitmap = U64_MAX;
815 nc->vlan_filter.n_vids = rsp->vlan_cnt;
820 static int ncsi_rsp_handler_gp(struct ncsi_request *nr)
822 struct ncsi_channel_vlan_filter *ncvf;
823 struct ncsi_channel_mac_filter *ncmf;
824 struct ncsi_dev_priv *ndp = nr->ndp;
825 struct ncsi_rsp_gp_pkt *rsp;
826 struct ncsi_channel *nc;
827 unsigned short enable;
828 unsigned char *pdata;
833 /* Find the channel */
834 rsp = (struct ncsi_rsp_gp_pkt *)skb_network_header(nr->rsp);
835 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
840 /* Modes with explicit enabled indications */
841 if (ntohl(rsp->valid_modes) & 0x1) { /* BC filter mode */
842 nc->modes[NCSI_MODE_BC].enable = 1;
843 nc->modes[NCSI_MODE_BC].data[0] = ntohl(rsp->bc_mode);
845 if (ntohl(rsp->valid_modes) & 0x2) /* Channel enabled */
846 nc->modes[NCSI_MODE_ENABLE].enable = 1;
847 if (ntohl(rsp->valid_modes) & 0x4) /* Channel Tx enabled */
848 nc->modes[NCSI_MODE_TX_ENABLE].enable = 1;
849 if (ntohl(rsp->valid_modes) & 0x8) /* MC filter mode */
850 nc->modes[NCSI_MODE_MC].enable = 1;
852 /* Modes without explicit enabled indications */
853 nc->modes[NCSI_MODE_LINK].enable = 1;
854 nc->modes[NCSI_MODE_LINK].data[0] = ntohl(rsp->link_mode);
855 nc->modes[NCSI_MODE_VLAN].enable = 1;
856 nc->modes[NCSI_MODE_VLAN].data[0] = rsp->vlan_mode;
857 nc->modes[NCSI_MODE_FC].enable = 1;
858 nc->modes[NCSI_MODE_FC].data[0] = rsp->fc_mode;
859 nc->modes[NCSI_MODE_AEN].enable = 1;
860 nc->modes[NCSI_MODE_AEN].data[0] = ntohl(rsp->aen_mode);
862 /* MAC addresses filter table */
863 pdata = (unsigned char *)rsp + 48;
864 enable = rsp->mac_enable;
865 ncmf = &nc->mac_filter;
866 spin_lock_irqsave(&nc->lock, flags);
867 bitmap = &ncmf->bitmap;
868 for (i = 0; i < rsp->mac_cnt; i++, pdata += 6) {
869 if (!(enable & (0x1 << i)))
870 clear_bit(i, bitmap);
874 memcpy(&ncmf->addrs[i * ETH_ALEN], pdata, ETH_ALEN);
876 spin_unlock_irqrestore(&nc->lock, flags);
878 /* VLAN filter table */
879 enable = ntohs(rsp->vlan_enable);
880 ncvf = &nc->vlan_filter;
881 bitmap = &ncvf->bitmap;
882 spin_lock_irqsave(&nc->lock, flags);
883 for (i = 0; i < rsp->vlan_cnt; i++, pdata += 2) {
884 if (!(enable & (0x1 << i)))
885 clear_bit(i, bitmap);
889 ncvf->vids[i] = ntohs(*(__be16 *)pdata);
891 spin_unlock_irqrestore(&nc->lock, flags);
896 static int ncsi_rsp_handler_gcps(struct ncsi_request *nr)
898 struct ncsi_rsp_gcps_pkt *rsp;
899 struct ncsi_dev_priv *ndp = nr->ndp;
900 struct ncsi_channel *nc;
901 struct ncsi_channel_stats *ncs;
903 /* Find the channel */
904 rsp = (struct ncsi_rsp_gcps_pkt *)skb_network_header(nr->rsp);
905 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
910 /* Update HNC's statistics */
912 ncs->hnc_cnt_hi = ntohl(rsp->cnt_hi);
913 ncs->hnc_cnt_lo = ntohl(rsp->cnt_lo);
914 ncs->hnc_rx_bytes = ntohl(rsp->rx_bytes);
915 ncs->hnc_tx_bytes = ntohl(rsp->tx_bytes);
916 ncs->hnc_rx_uc_pkts = ntohl(rsp->rx_uc_pkts);
917 ncs->hnc_rx_mc_pkts = ntohl(rsp->rx_mc_pkts);
918 ncs->hnc_rx_bc_pkts = ntohl(rsp->rx_bc_pkts);
919 ncs->hnc_tx_uc_pkts = ntohl(rsp->tx_uc_pkts);
920 ncs->hnc_tx_mc_pkts = ntohl(rsp->tx_mc_pkts);
921 ncs->hnc_tx_bc_pkts = ntohl(rsp->tx_bc_pkts);
922 ncs->hnc_fcs_err = ntohl(rsp->fcs_err);
923 ncs->hnc_align_err = ntohl(rsp->align_err);
924 ncs->hnc_false_carrier = ntohl(rsp->false_carrier);
925 ncs->hnc_runt_pkts = ntohl(rsp->runt_pkts);
926 ncs->hnc_jabber_pkts = ntohl(rsp->jabber_pkts);
927 ncs->hnc_rx_pause_xon = ntohl(rsp->rx_pause_xon);
928 ncs->hnc_rx_pause_xoff = ntohl(rsp->rx_pause_xoff);
929 ncs->hnc_tx_pause_xon = ntohl(rsp->tx_pause_xon);
930 ncs->hnc_tx_pause_xoff = ntohl(rsp->tx_pause_xoff);
931 ncs->hnc_tx_s_collision = ntohl(rsp->tx_s_collision);
932 ncs->hnc_tx_m_collision = ntohl(rsp->tx_m_collision);
933 ncs->hnc_l_collision = ntohl(rsp->l_collision);
934 ncs->hnc_e_collision = ntohl(rsp->e_collision);
935 ncs->hnc_rx_ctl_frames = ntohl(rsp->rx_ctl_frames);
936 ncs->hnc_rx_64_frames = ntohl(rsp->rx_64_frames);
937 ncs->hnc_rx_127_frames = ntohl(rsp->rx_127_frames);
938 ncs->hnc_rx_255_frames = ntohl(rsp->rx_255_frames);
939 ncs->hnc_rx_511_frames = ntohl(rsp->rx_511_frames);
940 ncs->hnc_rx_1023_frames = ntohl(rsp->rx_1023_frames);
941 ncs->hnc_rx_1522_frames = ntohl(rsp->rx_1522_frames);
942 ncs->hnc_rx_9022_frames = ntohl(rsp->rx_9022_frames);
943 ncs->hnc_tx_64_frames = ntohl(rsp->tx_64_frames);
944 ncs->hnc_tx_127_frames = ntohl(rsp->tx_127_frames);
945 ncs->hnc_tx_255_frames = ntohl(rsp->tx_255_frames);
946 ncs->hnc_tx_511_frames = ntohl(rsp->tx_511_frames);
947 ncs->hnc_tx_1023_frames = ntohl(rsp->tx_1023_frames);
948 ncs->hnc_tx_1522_frames = ntohl(rsp->tx_1522_frames);
949 ncs->hnc_tx_9022_frames = ntohl(rsp->tx_9022_frames);
950 ncs->hnc_rx_valid_bytes = ntohl(rsp->rx_valid_bytes);
951 ncs->hnc_rx_runt_pkts = ntohl(rsp->rx_runt_pkts);
952 ncs->hnc_rx_jabber_pkts = ntohl(rsp->rx_jabber_pkts);
957 static int ncsi_rsp_handler_gns(struct ncsi_request *nr)
959 struct ncsi_rsp_gns_pkt *rsp;
960 struct ncsi_dev_priv *ndp = nr->ndp;
961 struct ncsi_channel *nc;
962 struct ncsi_channel_stats *ncs;
964 /* Find the channel */
965 rsp = (struct ncsi_rsp_gns_pkt *)skb_network_header(nr->rsp);
966 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
971 /* Update HNC's statistics */
973 ncs->ncsi_rx_cmds = ntohl(rsp->rx_cmds);
974 ncs->ncsi_dropped_cmds = ntohl(rsp->dropped_cmds);
975 ncs->ncsi_cmd_type_errs = ntohl(rsp->cmd_type_errs);
976 ncs->ncsi_cmd_csum_errs = ntohl(rsp->cmd_csum_errs);
977 ncs->ncsi_rx_pkts = ntohl(rsp->rx_pkts);
978 ncs->ncsi_tx_pkts = ntohl(rsp->tx_pkts);
979 ncs->ncsi_tx_aen_pkts = ntohl(rsp->tx_aen_pkts);
984 static int ncsi_rsp_handler_gnpts(struct ncsi_request *nr)
986 struct ncsi_rsp_gnpts_pkt *rsp;
987 struct ncsi_dev_priv *ndp = nr->ndp;
988 struct ncsi_channel *nc;
989 struct ncsi_channel_stats *ncs;
991 /* Find the channel */
992 rsp = (struct ncsi_rsp_gnpts_pkt *)skb_network_header(nr->rsp);
993 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
998 /* Update HNC's statistics */
1000 ncs->pt_tx_pkts = ntohl(rsp->tx_pkts);
1001 ncs->pt_tx_dropped = ntohl(rsp->tx_dropped);
1002 ncs->pt_tx_channel_err = ntohl(rsp->tx_channel_err);
1003 ncs->pt_tx_us_err = ntohl(rsp->tx_us_err);
1004 ncs->pt_rx_pkts = ntohl(rsp->rx_pkts);
1005 ncs->pt_rx_dropped = ntohl(rsp->rx_dropped);
1006 ncs->pt_rx_channel_err = ntohl(rsp->rx_channel_err);
1007 ncs->pt_rx_us_err = ntohl(rsp->rx_us_err);
1008 ncs->pt_rx_os_err = ntohl(rsp->rx_os_err);
1013 static int ncsi_rsp_handler_gps(struct ncsi_request *nr)
1015 struct ncsi_rsp_gps_pkt *rsp;
1016 struct ncsi_dev_priv *ndp = nr->ndp;
1017 struct ncsi_package *np;
1019 /* Find the package */
1020 rsp = (struct ncsi_rsp_gps_pkt *)skb_network_header(nr->rsp);
1021 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
1029 static int ncsi_rsp_handler_gpuuid(struct ncsi_request *nr)
1031 struct ncsi_rsp_gpuuid_pkt *rsp;
1032 struct ncsi_dev_priv *ndp = nr->ndp;
1033 struct ncsi_package *np;
1035 /* Find the package */
1036 rsp = (struct ncsi_rsp_gpuuid_pkt *)skb_network_header(nr->rsp);
1037 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
1042 memcpy(np->uuid, rsp->uuid, sizeof(rsp->uuid));
1047 static int ncsi_rsp_handler_pldm(struct ncsi_request *nr)
1052 static int ncsi_rsp_handler_netlink(struct ncsi_request *nr)
1054 struct ncsi_dev_priv *ndp = nr->ndp;
1055 struct ncsi_rsp_pkt *rsp;
1056 struct ncsi_package *np;
1057 struct ncsi_channel *nc;
1060 /* Find the package */
1061 rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp);
1062 ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel,
1067 ret = ncsi_send_netlink_rsp(nr, np, nc);
1072 static struct ncsi_rsp_handler {
1075 int (*handler)(struct ncsi_request *nr);
1076 } ncsi_rsp_handlers[] = {
1077 { NCSI_PKT_RSP_CIS, 4, ncsi_rsp_handler_cis },
1078 { NCSI_PKT_RSP_SP, 4, ncsi_rsp_handler_sp },
1079 { NCSI_PKT_RSP_DP, 4, ncsi_rsp_handler_dp },
1080 { NCSI_PKT_RSP_EC, 4, ncsi_rsp_handler_ec },
1081 { NCSI_PKT_RSP_DC, 4, ncsi_rsp_handler_dc },
1082 { NCSI_PKT_RSP_RC, 4, ncsi_rsp_handler_rc },
1083 { NCSI_PKT_RSP_ECNT, 4, ncsi_rsp_handler_ecnt },
1084 { NCSI_PKT_RSP_DCNT, 4, ncsi_rsp_handler_dcnt },
1085 { NCSI_PKT_RSP_AE, 4, ncsi_rsp_handler_ae },
1086 { NCSI_PKT_RSP_SL, 4, ncsi_rsp_handler_sl },
1087 { NCSI_PKT_RSP_GLS, 16, ncsi_rsp_handler_gls },
1088 { NCSI_PKT_RSP_SVF, 4, ncsi_rsp_handler_svf },
1089 { NCSI_PKT_RSP_EV, 4, ncsi_rsp_handler_ev },
1090 { NCSI_PKT_RSP_DV, 4, ncsi_rsp_handler_dv },
1091 { NCSI_PKT_RSP_SMA, 4, ncsi_rsp_handler_sma },
1092 { NCSI_PKT_RSP_EBF, 4, ncsi_rsp_handler_ebf },
1093 { NCSI_PKT_RSP_DBF, 4, ncsi_rsp_handler_dbf },
1094 { NCSI_PKT_RSP_EGMF, 4, ncsi_rsp_handler_egmf },
1095 { NCSI_PKT_RSP_DGMF, 4, ncsi_rsp_handler_dgmf },
1096 { NCSI_PKT_RSP_SNFC, 4, ncsi_rsp_handler_snfc },
1097 { NCSI_PKT_RSP_GVI, 40, ncsi_rsp_handler_gvi },
1098 { NCSI_PKT_RSP_GC, 32, ncsi_rsp_handler_gc },
1099 { NCSI_PKT_RSP_GP, -1, ncsi_rsp_handler_gp },
1100 { NCSI_PKT_RSP_GCPS, 204, ncsi_rsp_handler_gcps },
1101 { NCSI_PKT_RSP_GNS, 32, ncsi_rsp_handler_gns },
1102 { NCSI_PKT_RSP_GNPTS, 48, ncsi_rsp_handler_gnpts },
1103 { NCSI_PKT_RSP_GPS, 8, ncsi_rsp_handler_gps },
1104 { NCSI_PKT_RSP_OEM, -1, ncsi_rsp_handler_oem },
1105 { NCSI_PKT_RSP_PLDM, -1, ncsi_rsp_handler_pldm },
1106 { NCSI_PKT_RSP_GPUUID, 20, ncsi_rsp_handler_gpuuid },
1107 { NCSI_PKT_RSP_QPNPR, -1, ncsi_rsp_handler_pldm },
1108 { NCSI_PKT_RSP_SNPR, -1, ncsi_rsp_handler_pldm }
1111 int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev,
1112 struct packet_type *pt, struct net_device *orig_dev)
1114 struct ncsi_rsp_handler *nrh = NULL;
1115 struct ncsi_dev *nd;
1116 struct ncsi_dev_priv *ndp;
1117 struct ncsi_request *nr;
1118 struct ncsi_pkt_hdr *hdr;
1119 unsigned long flags;
1120 int payload, i, ret;
1122 /* Find the NCSI device */
1123 nd = ncsi_find_dev(orig_dev);
1124 ndp = nd ? TO_NCSI_DEV_PRIV(nd) : NULL;
1128 /* Check if it is AEN packet */
1129 hdr = (struct ncsi_pkt_hdr *)skb_network_header(skb);
1130 if (hdr->type == NCSI_PKT_AEN)
1131 return ncsi_aen_handler(ndp, skb);
1133 /* Find the handler */
1134 for (i = 0; i < ARRAY_SIZE(ncsi_rsp_handlers); i++) {
1135 if (ncsi_rsp_handlers[i].type == hdr->type) {
1136 if (ncsi_rsp_handlers[i].handler)
1137 nrh = &ncsi_rsp_handlers[i];
1146 netdev_err(nd->dev, "Received unrecognized packet (0x%x)\n",
1151 /* Associate with the request */
1152 spin_lock_irqsave(&ndp->lock, flags);
1153 nr = &ndp->requests[hdr->id];
1155 spin_unlock_irqrestore(&ndp->lock, flags);
1161 spin_unlock_irqrestore(&ndp->lock, flags);
1166 /* Validate the packet */
1167 spin_unlock_irqrestore(&ndp->lock, flags);
1168 payload = nrh->payload;
1170 payload = ntohs(hdr->length);
1171 ret = ncsi_validate_rsp_pkt(nr, payload);
1173 netdev_warn(ndp->ndev.dev,
1174 "NCSI: 'bad' packet ignored for type 0x%x\n",
1177 if (nr->flags == NCSI_REQ_FLAG_NETLINK_DRIVEN) {
1181 ncsi_send_netlink_err(ndp->ndev.dev,
1190 /* Process the packet */
1191 ret = nrh->handler(nr);
1193 netdev_err(ndp->ndev.dev,
1194 "NCSI: Handler for packet type 0x%x returned %d\n",
1198 if (nr->flags == NCSI_REQ_FLAG_NETLINK_DRIVEN) {
1199 ret = ncsi_rsp_handler_netlink(nr);
1201 netdev_err(ndp->ndev.dev,
1202 "NCSI: Netlink handler for packet type 0x%x returned %d\n",
1208 ncsi_free_request(nr);