| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Gavin Shan | 5626 | 80.37% | 8 | 21.62% |
| Samuel Mendoza-Jonas | 365 | 5.21% | 8 | 21.62% |
| Peter Delevoryas | 341 | 4.87% | 2 | 5.41% |
| Vijay Khemka | 233 | 3.33% | 4 | 10.81% |
| Ivan Mikhaylov | 173 | 2.47% | 4 | 10.81% |
| Justin.Lee1 | 136 | 1.94% | 1 | 2.70% |
| Ben Wei | 32 | 0.46% | 2 | 5.41% |
| Tao Ren | 28 | 0.40% | 1 | 2.70% |
| Terry S. Duncan | 17 | 0.24% | 1 | 2.70% |
| Delphine CC Chiu | 17 | 0.24% | 1 | 2.70% |
| Paul Fertser | 16 | 0.23% | 1 | 2.70% |
| Dan Carpenter | 12 | 0.17% | 1 | 2.70% |
| Thomas Gleixner | 2 | 0.03% | 1 | 2.70% |
| John Wang | 1 | 0.01% | 1 | 2.70% |
| Miaohe Lin | 1 | 0.01% | 1 | 2.70% |
| Total | 7000 | 37 |
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// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright Gavin Shan, IBM Corporation 2016. */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> #include <net/ncsi.h> #include <net/net_namespace.h> #include <net/sock.h> #include <net/genetlink.h> #include "internal.h" #include "ncsi-pkt.h" #include "ncsi-netlink.h" /* Nibbles within [0xA, 0xF] add zero "0" to the returned value. * Optional fields (encoded as 0xFF) will default to zero. */ static u8 decode_bcd_u8(u8 x) { int lo = x & 0xF; int hi = x >> 4; lo = lo < 0xA ? lo : 0; hi = hi < 0xA ? hi : 0; return lo + hi * 10; } static int ncsi_validate_rsp_pkt(struct ncsi_request *nr, unsigned short payload) { struct ncsi_rsp_pkt_hdr *h; u32 checksum; __be32 *pchecksum; /* Check NCSI packet header. We don't need validate * the packet type, which should have been checked * before calling this function. */ h = (struct ncsi_rsp_pkt_hdr *)skb_network_header(nr->rsp); if (h->common.revision != NCSI_PKT_REVISION) { netdev_dbg(nr->ndp->ndev.dev, "NCSI: unsupported header revision\n"); return -EINVAL; } if (ntohs(h->common.length) != payload) { netdev_dbg(nr->ndp->ndev.dev, "NCSI: payload length mismatched\n"); return -EINVAL; } /* Check on code and reason */ if (ntohs(h->code) != NCSI_PKT_RSP_C_COMPLETED || ntohs(h->reason) != NCSI_PKT_RSP_R_NO_ERROR) { netdev_dbg(nr->ndp->ndev.dev, "NCSI: non zero response/reason code %04xh, %04xh\n", ntohs(h->code), ntohs(h->reason)); return -EPERM; } /* Validate checksum, which might be zeroes if the * sender doesn't support checksum according to NCSI * specification. */ pchecksum = (__be32 *)((void *)(h + 1) + ALIGN(payload, 4) - 4); if (ntohl(*pchecksum) == 0) return 0; checksum = ncsi_calculate_checksum((unsigned char *)h, sizeof(*h) + payload - 4); if (*pchecksum != htonl(checksum)) { netdev_dbg(nr->ndp->ndev.dev, "NCSI: checksum mismatched; recd: %08x calc: %08x\n", *pchecksum, htonl(checksum)); return -EINVAL; } return 0; } static int ncsi_rsp_handler_cis(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_package *np; struct ncsi_channel *nc; unsigned char id; rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, &nc); if (!nc) { if (ndp->flags & NCSI_DEV_PROBED) return -ENXIO; id = NCSI_CHANNEL_INDEX(rsp->rsp.common.channel); nc = ncsi_add_channel(np, id); } return nc ? 0 : -ENODEV; } static int ncsi_rsp_handler_sp(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_package *np; unsigned char id; /* Add the package if it's not existing. Otherwise, * to change the state of its child channels. */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, NULL); if (!np) { if (ndp->flags & NCSI_DEV_PROBED) return -ENXIO; id = NCSI_PACKAGE_INDEX(rsp->rsp.common.channel); np = ncsi_add_package(ndp, id); if (!np) return -ENODEV; } return 0; } static int ncsi_rsp_handler_dp(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_package *np; struct ncsi_channel *nc; unsigned long flags; /* Find the package */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, NULL); if (!np) return -ENODEV; /* Change state of all channels attached to the package */ NCSI_FOR_EACH_CHANNEL(np, nc) { spin_lock_irqsave(&nc->lock, flags); nc->state = NCSI_CHANNEL_INACTIVE; spin_unlock_irqrestore(&nc->lock, flags); } return 0; } static int ncsi_rsp_handler_ec(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; ncm = &nc->modes[NCSI_MODE_ENABLE]; if (ncm->enable) return 0; ncm->enable = 1; return 0; } static int ncsi_rsp_handler_dc(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; int ret; ret = ncsi_validate_rsp_pkt(nr, 4); if (ret) return ret; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; ncm = &nc->modes[NCSI_MODE_ENABLE]; if (!ncm->enable) return 0; ncm->enable = 0; return 0; } static int ncsi_rsp_handler_rc(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; unsigned long flags; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Update state for the specified channel */ spin_lock_irqsave(&nc->lock, flags); nc->state = NCSI_CHANNEL_INACTIVE; spin_unlock_irqrestore(&nc->lock, flags); return 0; } static int ncsi_rsp_handler_ecnt(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; ncm = &nc->modes[NCSI_MODE_TX_ENABLE]; if (ncm->enable) return 0; ncm->enable = 1; return 0; } static int ncsi_rsp_handler_dcnt(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; ncm = &nc->modes[NCSI_MODE_TX_ENABLE]; if (!ncm->enable) return 0; ncm->enable = 0; return 0; } static int ncsi_rsp_handler_ae(struct ncsi_request *nr) { struct ncsi_cmd_ae_pkt *cmd; struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Check if the AEN has been enabled */ ncm = &nc->modes[NCSI_MODE_AEN]; if (ncm->enable) return 0; /* Update to AEN configuration */ cmd = (struct ncsi_cmd_ae_pkt *)skb_network_header(nr->cmd); ncm->enable = 1; ncm->data[0] = cmd->mc_id; ncm->data[1] = ntohl(cmd->mode); return 0; } static int ncsi_rsp_handler_sl(struct ncsi_request *nr) { struct ncsi_cmd_sl_pkt *cmd; struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; cmd = (struct ncsi_cmd_sl_pkt *)skb_network_header(nr->cmd); ncm = &nc->modes[NCSI_MODE_LINK]; ncm->data[0] = ntohl(cmd->mode); ncm->data[1] = ntohl(cmd->oem_mode); return 0; } static int ncsi_rsp_handler_gls(struct ncsi_request *nr) { struct ncsi_rsp_gls_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; unsigned long flags; /* Find the package and channel */ rsp = (struct ncsi_rsp_gls_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; ncm = &nc->modes[NCSI_MODE_LINK]; ncm->data[2] = ntohl(rsp->status); ncm->data[3] = ntohl(rsp->other); ncm->data[4] = ntohl(rsp->oem_status); if (nr->flags & NCSI_REQ_FLAG_EVENT_DRIVEN) return 0; /* Reset the channel monitor if it has been enabled */ spin_lock_irqsave(&nc->lock, flags); nc->monitor.state = NCSI_CHANNEL_MONITOR_START; spin_unlock_irqrestore(&nc->lock, flags); return 0; } static int ncsi_rsp_handler_svf(struct ncsi_request *nr) { struct ncsi_cmd_svf_pkt *cmd; struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_vlan_filter *ncf; unsigned long flags; void *bitmap; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; cmd = (struct ncsi_cmd_svf_pkt *)skb_network_header(nr->cmd); ncf = &nc->vlan_filter; if (cmd->index == 0 || cmd->index > ncf->n_vids) return -ERANGE; /* Add or remove the VLAN filter. Remember HW indexes from 1 */ spin_lock_irqsave(&nc->lock, flags); bitmap = &ncf->bitmap; if (!(cmd->enable & 0x1)) { if (test_and_clear_bit(cmd->index - 1, bitmap)) ncf->vids[cmd->index - 1] = 0; } else { set_bit(cmd->index - 1, bitmap); ncf->vids[cmd->index - 1] = ntohs(cmd->vlan); } spin_unlock_irqrestore(&nc->lock, flags); return 0; } static int ncsi_rsp_handler_ev(struct ncsi_request *nr) { struct ncsi_cmd_ev_pkt *cmd; struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Check if VLAN mode has been enabled */ ncm = &nc->modes[NCSI_MODE_VLAN]; if (ncm->enable) return 0; /* Update to VLAN mode */ cmd = (struct ncsi_cmd_ev_pkt *)skb_network_header(nr->cmd); ncm->enable = 1; ncm->data[0] = ntohl((__force __be32)cmd->mode); return 0; } static int ncsi_rsp_handler_dv(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Check if VLAN mode has been enabled */ ncm = &nc->modes[NCSI_MODE_VLAN]; if (!ncm->enable) return 0; /* Update to VLAN mode */ ncm->enable = 0; return 0; } static int ncsi_rsp_handler_sma(struct ncsi_request *nr) { struct ncsi_cmd_sma_pkt *cmd; struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mac_filter *ncf; unsigned long flags; void *bitmap; bool enabled; int index; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* According to NCSI spec 1.01, the mixed filter table * isn't supported yet. */ cmd = (struct ncsi_cmd_sma_pkt *)skb_network_header(nr->cmd); enabled = cmd->at_e & 0x1; ncf = &nc->mac_filter; bitmap = &ncf->bitmap; if (cmd->index == 0 || cmd->index > ncf->n_uc + ncf->n_mc + ncf->n_mixed) return -ERANGE; index = (cmd->index - 1) * ETH_ALEN; spin_lock_irqsave(&nc->lock, flags); if (enabled) { set_bit(cmd->index - 1, bitmap); memcpy(&ncf->addrs[index], cmd->mac, ETH_ALEN); } else { clear_bit(cmd->index - 1, bitmap); eth_zero_addr(&ncf->addrs[index]); } spin_unlock_irqrestore(&nc->lock, flags); return 0; } static int ncsi_rsp_handler_ebf(struct ncsi_request *nr) { struct ncsi_cmd_ebf_pkt *cmd; struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; /* Find the package and channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Check if broadcast filter has been enabled */ ncm = &nc->modes[NCSI_MODE_BC]; if (ncm->enable) return 0; /* Update to broadcast filter mode */ cmd = (struct ncsi_cmd_ebf_pkt *)skb_network_header(nr->cmd); ncm->enable = 1; ncm->data[0] = ntohl(cmd->mode); return 0; } static int ncsi_rsp_handler_dbf(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Check if broadcast filter isn't enabled */ ncm = &nc->modes[NCSI_MODE_BC]; if (!ncm->enable) return 0; /* Update to broadcast filter mode */ ncm->enable = 0; ncm->data[0] = 0; return 0; } static int ncsi_rsp_handler_egmf(struct ncsi_request *nr) { struct ncsi_cmd_egmf_pkt *cmd; struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; /* Find the channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Check if multicast filter has been enabled */ ncm = &nc->modes[NCSI_MODE_MC]; if (ncm->enable) return 0; /* Update to multicast filter mode */ cmd = (struct ncsi_cmd_egmf_pkt *)skb_network_header(nr->cmd); ncm->enable = 1; ncm->data[0] = ntohl(cmd->mode); return 0; } static int ncsi_rsp_handler_dgmf(struct ncsi_request *nr) { struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Check if multicast filter has been enabled */ ncm = &nc->modes[NCSI_MODE_MC]; if (!ncm->enable) return 0; /* Update to multicast filter mode */ ncm->enable = 0; ncm->data[0] = 0; return 0; } static int ncsi_rsp_handler_snfc(struct ncsi_request *nr) { struct ncsi_cmd_snfc_pkt *cmd; struct ncsi_rsp_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_mode *ncm; /* Find the channel */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Check if flow control has been enabled */ ncm = &nc->modes[NCSI_MODE_FC]; if (ncm->enable) return 0; /* Update to flow control mode */ cmd = (struct ncsi_cmd_snfc_pkt *)skb_network_header(nr->cmd); ncm->enable = 1; ncm->data[0] = cmd->mode; return 0; } /* Response handler for Get Mac Address command */ static int ncsi_rsp_handler_oem_gma(struct ncsi_request *nr, int mfr_id) { struct ncsi_dev_priv *ndp = nr->ndp; struct sockaddr *saddr = &ndp->pending_mac; struct net_device *ndev = ndp->ndev.dev; struct ncsi_rsp_oem_pkt *rsp; u32 mac_addr_off = 0; /* Get the response header */ rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp); ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE; if (mfr_id == NCSI_OEM_MFR_BCM_ID) mac_addr_off = BCM_MAC_ADDR_OFFSET; else if (mfr_id == NCSI_OEM_MFR_MLX_ID) mac_addr_off = MLX_MAC_ADDR_OFFSET; else if (mfr_id == NCSI_OEM_MFR_INTEL_ID) mac_addr_off = INTEL_MAC_ADDR_OFFSET; saddr->sa_family = ndev->type; memcpy(saddr->sa_data, &rsp->data[mac_addr_off], ETH_ALEN); if (mfr_id == NCSI_OEM_MFR_BCM_ID || mfr_id == NCSI_OEM_MFR_INTEL_ID) eth_addr_inc((u8 *)saddr->sa_data); if (!is_valid_ether_addr((const u8 *)saddr->sa_data)) return -ENXIO; /* Set the flag for GMA command which should only be called once */ ndp->gma_flag = 1; return 0; } /* Response handler for Mellanox card */ static int ncsi_rsp_handler_oem_mlx(struct ncsi_request *nr) { struct ncsi_rsp_oem_mlx_pkt *mlx; struct ncsi_rsp_oem_pkt *rsp; /* Get the response header */ rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp); mlx = (struct ncsi_rsp_oem_mlx_pkt *)(rsp->data); if (mlx->cmd == NCSI_OEM_MLX_CMD_GMA && mlx->param == NCSI_OEM_MLX_CMD_GMA_PARAM) return ncsi_rsp_handler_oem_gma(nr, NCSI_OEM_MFR_MLX_ID); return 0; } /* Response handler for Broadcom card */ static int ncsi_rsp_handler_oem_bcm(struct ncsi_request *nr) { struct ncsi_rsp_oem_bcm_pkt *bcm; struct ncsi_rsp_oem_pkt *rsp; /* Get the response header */ rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp); bcm = (struct ncsi_rsp_oem_bcm_pkt *)(rsp->data); if (bcm->type == NCSI_OEM_BCM_CMD_GMA) return ncsi_rsp_handler_oem_gma(nr, NCSI_OEM_MFR_BCM_ID); return 0; } /* Response handler for Intel card */ static int ncsi_rsp_handler_oem_intel(struct ncsi_request *nr) { struct ncsi_rsp_oem_intel_pkt *intel; struct ncsi_rsp_oem_pkt *rsp; /* Get the response header */ rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp); intel = (struct ncsi_rsp_oem_intel_pkt *)(rsp->data); if (intel->cmd == NCSI_OEM_INTEL_CMD_GMA) return ncsi_rsp_handler_oem_gma(nr, NCSI_OEM_MFR_INTEL_ID); return 0; } static struct ncsi_rsp_oem_handler { unsigned int mfr_id; int (*handler)(struct ncsi_request *nr); } ncsi_rsp_oem_handlers[] = { { NCSI_OEM_MFR_MLX_ID, ncsi_rsp_handler_oem_mlx }, { NCSI_OEM_MFR_BCM_ID, ncsi_rsp_handler_oem_bcm }, { NCSI_OEM_MFR_INTEL_ID, ncsi_rsp_handler_oem_intel } }; /* Response handler for OEM command */ static int ncsi_rsp_handler_oem(struct ncsi_request *nr) { struct ncsi_rsp_oem_handler *nrh = NULL; struct ncsi_rsp_oem_pkt *rsp; unsigned int mfr_id, i; /* Get the response header */ rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp); mfr_id = ntohl(rsp->mfr_id); /* Check for manufacturer id and Find the handler */ for (i = 0; i < ARRAY_SIZE(ncsi_rsp_oem_handlers); i++) { if (ncsi_rsp_oem_handlers[i].mfr_id == mfr_id) { if (ncsi_rsp_oem_handlers[i].handler) nrh = &ncsi_rsp_oem_handlers[i]; else nrh = NULL; break; } } if (!nrh) { netdev_err(nr->ndp->ndev.dev, "Received unrecognized OEM packet with MFR-ID (0x%x)\n", mfr_id); return -ENOENT; } /* Process the packet */ return nrh->handler(nr); } static int ncsi_rsp_handler_gvi(struct ncsi_request *nr) { struct ncsi_rsp_gvi_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_version *ncv; int i; /* Find the channel */ rsp = (struct ncsi_rsp_gvi_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Update channel's version info * * Major, minor, and update fields are supposed to be * unsigned integers encoded as packed BCD. * * Alpha1 and alpha2 are ISO/IEC 8859-1 characters. */ ncv = &nc->version; ncv->major = decode_bcd_u8(rsp->major); ncv->minor = decode_bcd_u8(rsp->minor); ncv->update = decode_bcd_u8(rsp->update); ncv->alpha1 = rsp->alpha1; ncv->alpha2 = rsp->alpha2; memcpy(ncv->fw_name, rsp->fw_name, 12); ncv->fw_version = ntohl(rsp->fw_version); for (i = 0; i < ARRAY_SIZE(ncv->pci_ids); i++) ncv->pci_ids[i] = ntohs(rsp->pci_ids[i]); ncv->mf_id = ntohl(rsp->mf_id); return 0; } static int ncsi_rsp_handler_gc(struct ncsi_request *nr) { struct ncsi_rsp_gc_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_package *np; size_t size; /* Find the channel */ rsp = (struct ncsi_rsp_gc_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, &nc); if (!nc) return -ENODEV; /* Update channel's capabilities */ nc->caps[NCSI_CAP_GENERIC].cap = ntohl(rsp->cap) & NCSI_CAP_GENERIC_MASK; nc->caps[NCSI_CAP_BC].cap = ntohl(rsp->bc_cap) & NCSI_CAP_BC_MASK; nc->caps[NCSI_CAP_MC].cap = ntohl(rsp->mc_cap) & NCSI_CAP_MC_MASK; nc->caps[NCSI_CAP_BUFFER].cap = ntohl(rsp->buf_cap); nc->caps[NCSI_CAP_AEN].cap = ntohl(rsp->aen_cap) & NCSI_CAP_AEN_MASK; nc->caps[NCSI_CAP_VLAN].cap = rsp->vlan_mode & NCSI_CAP_VLAN_MASK; size = (rsp->uc_cnt + rsp->mc_cnt + rsp->mixed_cnt) * ETH_ALEN; nc->mac_filter.addrs = kzalloc(size, GFP_ATOMIC); if (!nc->mac_filter.addrs) return -ENOMEM; nc->mac_filter.n_uc = rsp->uc_cnt; nc->mac_filter.n_mc = rsp->mc_cnt; nc->mac_filter.n_mixed = rsp->mixed_cnt; nc->vlan_filter.vids = kcalloc(rsp->vlan_cnt, sizeof(*nc->vlan_filter.vids), GFP_ATOMIC); if (!nc->vlan_filter.vids) return -ENOMEM; /* Set VLAN filters active so they are cleared in the first * configuration state */ nc->vlan_filter.bitmap = U64_MAX; nc->vlan_filter.n_vids = rsp->vlan_cnt; np->ndp->channel_count = rsp->channel_cnt; return 0; } static int ncsi_rsp_handler_gp(struct ncsi_request *nr) { struct ncsi_channel_vlan_filter *ncvf; struct ncsi_channel_mac_filter *ncmf; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_rsp_gp_pkt *rsp; struct ncsi_channel *nc; unsigned short enable; unsigned char *pdata; unsigned long flags; void *bitmap; int i; /* Find the channel */ rsp = (struct ncsi_rsp_gp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Modes with explicit enabled indications */ if (ntohl(rsp->valid_modes) & 0x1) { /* BC filter mode */ nc->modes[NCSI_MODE_BC].enable = 1; nc->modes[NCSI_MODE_BC].data[0] = ntohl(rsp->bc_mode); } if (ntohl(rsp->valid_modes) & 0x2) /* Channel enabled */ nc->modes[NCSI_MODE_ENABLE].enable = 1; if (ntohl(rsp->valid_modes) & 0x4) /* Channel Tx enabled */ nc->modes[NCSI_MODE_TX_ENABLE].enable = 1; if (ntohl(rsp->valid_modes) & 0x8) /* MC filter mode */ nc->modes[NCSI_MODE_MC].enable = 1; /* Modes without explicit enabled indications */ nc->modes[NCSI_MODE_LINK].enable = 1; nc->modes[NCSI_MODE_LINK].data[0] = ntohl(rsp->link_mode); nc->modes[NCSI_MODE_VLAN].enable = 1; nc->modes[NCSI_MODE_VLAN].data[0] = rsp->vlan_mode; nc->modes[NCSI_MODE_FC].enable = 1; nc->modes[NCSI_MODE_FC].data[0] = rsp->fc_mode; nc->modes[NCSI_MODE_AEN].enable = 1; nc->modes[NCSI_MODE_AEN].data[0] = ntohl(rsp->aen_mode); /* MAC addresses filter table */ pdata = (unsigned char *)rsp + 48; enable = rsp->mac_enable; ncmf = &nc->mac_filter; spin_lock_irqsave(&nc->lock, flags); bitmap = &ncmf->bitmap; for (i = 0; i < rsp->mac_cnt; i++, pdata += 6) { if (!(enable & (0x1 << i))) clear_bit(i, bitmap); else set_bit(i, bitmap); memcpy(&ncmf->addrs[i * ETH_ALEN], pdata, ETH_ALEN); } spin_unlock_irqrestore(&nc->lock, flags); /* VLAN filter table */ enable = ntohs(rsp->vlan_enable); ncvf = &nc->vlan_filter; bitmap = &ncvf->bitmap; spin_lock_irqsave(&nc->lock, flags); for (i = 0; i < rsp->vlan_cnt; i++, pdata += 2) { if (!(enable & (0x1 << i))) clear_bit(i, bitmap); else set_bit(i, bitmap); ncvf->vids[i] = ntohs(*(__be16 *)pdata); } spin_unlock_irqrestore(&nc->lock, flags); return 0; } static int ncsi_rsp_handler_gcps(struct ncsi_request *nr) { struct ncsi_rsp_gcps_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_stats *ncs; /* Find the channel */ rsp = (struct ncsi_rsp_gcps_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Update HNC's statistics */ ncs = &nc->stats; ncs->hnc_cnt_hi = ntohl(rsp->cnt_hi); ncs->hnc_cnt_lo = ntohl(rsp->cnt_lo); ncs->hnc_rx_bytes = ntohl(rsp->rx_bytes); ncs->hnc_tx_bytes = ntohl(rsp->tx_bytes); ncs->hnc_rx_uc_pkts = ntohl(rsp->rx_uc_pkts); ncs->hnc_rx_mc_pkts = ntohl(rsp->rx_mc_pkts); ncs->hnc_rx_bc_pkts = ntohl(rsp->rx_bc_pkts); ncs->hnc_tx_uc_pkts = ntohl(rsp->tx_uc_pkts); ncs->hnc_tx_mc_pkts = ntohl(rsp->tx_mc_pkts); ncs->hnc_tx_bc_pkts = ntohl(rsp->tx_bc_pkts); ncs->hnc_fcs_err = ntohl(rsp->fcs_err); ncs->hnc_align_err = ntohl(rsp->align_err); ncs->hnc_false_carrier = ntohl(rsp->false_carrier); ncs->hnc_runt_pkts = ntohl(rsp->runt_pkts); ncs->hnc_jabber_pkts = ntohl(rsp->jabber_pkts); ncs->hnc_rx_pause_xon = ntohl(rsp->rx_pause_xon); ncs->hnc_rx_pause_xoff = ntohl(rsp->rx_pause_xoff); ncs->hnc_tx_pause_xon = ntohl(rsp->tx_pause_xon); ncs->hnc_tx_pause_xoff = ntohl(rsp->tx_pause_xoff); ncs->hnc_tx_s_collision = ntohl(rsp->tx_s_collision); ncs->hnc_tx_m_collision = ntohl(rsp->tx_m_collision); ncs->hnc_l_collision = ntohl(rsp->l_collision); ncs->hnc_e_collision = ntohl(rsp->e_collision); ncs->hnc_rx_ctl_frames = ntohl(rsp->rx_ctl_frames); ncs->hnc_rx_64_frames = ntohl(rsp->rx_64_frames); ncs->hnc_rx_127_frames = ntohl(rsp->rx_127_frames); ncs->hnc_rx_255_frames = ntohl(rsp->rx_255_frames); ncs->hnc_rx_511_frames = ntohl(rsp->rx_511_frames); ncs->hnc_rx_1023_frames = ntohl(rsp->rx_1023_frames); ncs->hnc_rx_1522_frames = ntohl(rsp->rx_1522_frames); ncs->hnc_rx_9022_frames = ntohl(rsp->rx_9022_frames); ncs->hnc_tx_64_frames = ntohl(rsp->tx_64_frames); ncs->hnc_tx_127_frames = ntohl(rsp->tx_127_frames); ncs->hnc_tx_255_frames = ntohl(rsp->tx_255_frames); ncs->hnc_tx_511_frames = ntohl(rsp->tx_511_frames); ncs->hnc_tx_1023_frames = ntohl(rsp->tx_1023_frames); ncs->hnc_tx_1522_frames = ntohl(rsp->tx_1522_frames); ncs->hnc_tx_9022_frames = ntohl(rsp->tx_9022_frames); ncs->hnc_rx_valid_bytes = ntohl(rsp->rx_valid_bytes); ncs->hnc_rx_runt_pkts = ntohl(rsp->rx_runt_pkts); ncs->hnc_rx_jabber_pkts = ntohl(rsp->rx_jabber_pkts); return 0; } static int ncsi_rsp_handler_gns(struct ncsi_request *nr) { struct ncsi_rsp_gns_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_stats *ncs; /* Find the channel */ rsp = (struct ncsi_rsp_gns_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Update HNC's statistics */ ncs = &nc->stats; ncs->ncsi_rx_cmds = ntohl(rsp->rx_cmds); ncs->ncsi_dropped_cmds = ntohl(rsp->dropped_cmds); ncs->ncsi_cmd_type_errs = ntohl(rsp->cmd_type_errs); ncs->ncsi_cmd_csum_errs = ntohl(rsp->cmd_csum_errs); ncs->ncsi_rx_pkts = ntohl(rsp->rx_pkts); ncs->ncsi_tx_pkts = ntohl(rsp->tx_pkts); ncs->ncsi_tx_aen_pkts = ntohl(rsp->tx_aen_pkts); return 0; } static int ncsi_rsp_handler_gnpts(struct ncsi_request *nr) { struct ncsi_rsp_gnpts_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_channel *nc; struct ncsi_channel_stats *ncs; /* Find the channel */ rsp = (struct ncsi_rsp_gnpts_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); if (!nc) return -ENODEV; /* Update HNC's statistics */ ncs = &nc->stats; ncs->pt_tx_pkts = ntohl(rsp->tx_pkts); ncs->pt_tx_dropped = ntohl(rsp->tx_dropped); ncs->pt_tx_channel_err = ntohl(rsp->tx_channel_err); ncs->pt_tx_us_err = ntohl(rsp->tx_us_err); ncs->pt_rx_pkts = ntohl(rsp->rx_pkts); ncs->pt_rx_dropped = ntohl(rsp->rx_dropped); ncs->pt_rx_channel_err = ntohl(rsp->rx_channel_err); ncs->pt_rx_us_err = ntohl(rsp->rx_us_err); ncs->pt_rx_os_err = ntohl(rsp->rx_os_err); return 0; } static int ncsi_rsp_handler_gps(struct ncsi_request *nr) { struct ncsi_rsp_gps_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_package *np; /* Find the package */ rsp = (struct ncsi_rsp_gps_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, NULL); if (!np) return -ENODEV; return 0; } static int ncsi_rsp_handler_gpuuid(struct ncsi_request *nr) { struct ncsi_rsp_gpuuid_pkt *rsp; struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_package *np; /* Find the package */ rsp = (struct ncsi_rsp_gpuuid_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, NULL); if (!np) return -ENODEV; memcpy(np->uuid, rsp->uuid, sizeof(rsp->uuid)); return 0; } static int ncsi_rsp_handler_pldm(struct ncsi_request *nr) { return 0; } static int ncsi_rsp_handler_netlink(struct ncsi_request *nr) { struct ncsi_dev_priv *ndp = nr->ndp; struct ncsi_rsp_pkt *rsp; struct ncsi_package *np; struct ncsi_channel *nc; int ret; /* Find the package */ rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, &nc); if (!np) return -ENODEV; ret = ncsi_send_netlink_rsp(nr, np, nc); return ret; } static int ncsi_rsp_handler_gmcma(struct ncsi_request *nr) { struct ncsi_dev_priv *ndp = nr->ndp; struct net_device *ndev = ndp->ndev.dev; struct ncsi_rsp_gmcma_pkt *rsp; struct sockaddr saddr; int ret = -1; int i; rsp = (struct ncsi_rsp_gmcma_pkt *)skb_network_header(nr->rsp); saddr.sa_family = ndev->type; ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE; netdev_info(ndev, "NCSI: Received %d provisioned MAC addresses\n", rsp->address_count); for (i = 0; i < rsp->address_count; i++) { netdev_info(ndev, "NCSI: MAC address %d: %02x:%02x:%02x:%02x:%02x:%02x\n", i, rsp->addresses[i][0], rsp->addresses[i][1], rsp->addresses[i][2], rsp->addresses[i][3], rsp->addresses[i][4], rsp->addresses[i][5]); } for (i = 0; i < rsp->address_count; i++) { memcpy(saddr.sa_data, &rsp->addresses[i], ETH_ALEN); ret = ndev->netdev_ops->ndo_set_mac_address(ndev, &saddr); if (ret < 0) { netdev_warn(ndev, "NCSI: Unable to assign %pM to device\n", saddr.sa_data); continue; } netdev_warn(ndev, "NCSI: Set MAC address to %pM\n", saddr.sa_data); break; } ndp->gma_flag = ret == 0; return ret; } static struct ncsi_rsp_handler { unsigned char type; int payload; int (*handler)(struct ncsi_request *nr); } ncsi_rsp_handlers[] = { { NCSI_PKT_RSP_CIS, 4, ncsi_rsp_handler_cis }, { NCSI_PKT_RSP_SP, 4, ncsi_rsp_handler_sp }, { NCSI_PKT_RSP_DP, 4, ncsi_rsp_handler_dp }, { NCSI_PKT_RSP_EC, 4, ncsi_rsp_handler_ec }, { NCSI_PKT_RSP_DC, 4, ncsi_rsp_handler_dc }, { NCSI_PKT_RSP_RC, 4, ncsi_rsp_handler_rc }, { NCSI_PKT_RSP_ECNT, 4, ncsi_rsp_handler_ecnt }, { NCSI_PKT_RSP_DCNT, 4, ncsi_rsp_handler_dcnt }, { NCSI_PKT_RSP_AE, 4, ncsi_rsp_handler_ae }, { NCSI_PKT_RSP_SL, 4, ncsi_rsp_handler_sl }, { NCSI_PKT_RSP_GLS, 16, ncsi_rsp_handler_gls }, { NCSI_PKT_RSP_SVF, 4, ncsi_rsp_handler_svf }, { NCSI_PKT_RSP_EV, 4, ncsi_rsp_handler_ev }, { NCSI_PKT_RSP_DV, 4, ncsi_rsp_handler_dv }, { NCSI_PKT_RSP_SMA, 4, ncsi_rsp_handler_sma }, { NCSI_PKT_RSP_EBF, 4, ncsi_rsp_handler_ebf }, { NCSI_PKT_RSP_DBF, 4, ncsi_rsp_handler_dbf }, { NCSI_PKT_RSP_EGMF, 4, ncsi_rsp_handler_egmf }, { NCSI_PKT_RSP_DGMF, 4, ncsi_rsp_handler_dgmf }, { NCSI_PKT_RSP_SNFC, 4, ncsi_rsp_handler_snfc }, { NCSI_PKT_RSP_GVI, 40, ncsi_rsp_handler_gvi }, { NCSI_PKT_RSP_GC, 32, ncsi_rsp_handler_gc }, { NCSI_PKT_RSP_GP, -1, ncsi_rsp_handler_gp }, { NCSI_PKT_RSP_GCPS, 204, ncsi_rsp_handler_gcps }, { NCSI_PKT_RSP_GNS, 32, ncsi_rsp_handler_gns }, { NCSI_PKT_RSP_GNPTS, 48, ncsi_rsp_handler_gnpts }, { NCSI_PKT_RSP_GPS, 8, ncsi_rsp_handler_gps }, { NCSI_PKT_RSP_OEM, -1, ncsi_rsp_handler_oem }, { NCSI_PKT_RSP_PLDM, -1, ncsi_rsp_handler_pldm }, { NCSI_PKT_RSP_GPUUID, 20, ncsi_rsp_handler_gpuuid }, { NCSI_PKT_RSP_QPNPR, -1, ncsi_rsp_handler_pldm }, { NCSI_PKT_RSP_SNPR, -1, ncsi_rsp_handler_pldm }, { NCSI_PKT_RSP_GMCMA, -1, ncsi_rsp_handler_gmcma }, }; int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { struct ncsi_rsp_handler *nrh = NULL; struct ncsi_dev *nd; struct ncsi_dev_priv *ndp; struct ncsi_request *nr; struct ncsi_pkt_hdr *hdr; unsigned long flags; int payload, i, ret; /* Find the NCSI device */ nd = ncsi_find_dev(orig_dev); ndp = nd ? TO_NCSI_DEV_PRIV(nd) : NULL; if (!ndp) return -ENODEV; /* Check if it is AEN packet */ hdr = (struct ncsi_pkt_hdr *)skb_network_header(skb); if (hdr->type == NCSI_PKT_AEN) return ncsi_aen_handler(ndp, skb); /* Find the handler */ for (i = 0; i < ARRAY_SIZE(ncsi_rsp_handlers); i++) { if (ncsi_rsp_handlers[i].type == hdr->type) { if (ncsi_rsp_handlers[i].handler) nrh = &ncsi_rsp_handlers[i]; else nrh = NULL; break; } } if (!nrh) { netdev_err(nd->dev, "Received unrecognized packet (0x%x)\n", hdr->type); return -ENOENT; } /* Associate with the request */ spin_lock_irqsave(&ndp->lock, flags); nr = &ndp->requests[hdr->id]; if (!nr->used) { spin_unlock_irqrestore(&ndp->lock, flags); return -ENODEV; } nr->rsp = skb; if (!nr->enabled) { spin_unlock_irqrestore(&ndp->lock, flags); ret = -ENOENT; goto out; } /* Validate the packet */ spin_unlock_irqrestore(&ndp->lock, flags); payload = nrh->payload; if (payload < 0) payload = ntohs(hdr->length); ret = ncsi_validate_rsp_pkt(nr, payload); if (ret) { netdev_warn(ndp->ndev.dev, "NCSI: 'bad' packet ignored for type 0x%x\n", hdr->type); if (nr->flags == NCSI_REQ_FLAG_NETLINK_DRIVEN) { if (ret == -EPERM) goto out_netlink; else ncsi_send_netlink_err(ndp->ndev.dev, nr->snd_seq, nr->snd_portid, &nr->nlhdr, ret); } goto out; } /* Process the packet */ ret = nrh->handler(nr); if (ret) netdev_err(ndp->ndev.dev, "NCSI: Handler for packet type 0x%x returned %d\n", hdr->type, ret); out_netlink: if (nr->flags == NCSI_REQ_FLAG_NETLINK_DRIVEN) { ret = ncsi_rsp_handler_netlink(nr); if (ret) { netdev_err(ndp->ndev.dev, "NCSI: Netlink handler for packet type 0x%x returned %d\n", hdr->type, ret); } } out: ncsi_free_request(nr); return ret; }
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