| /* | |
| * Copyright Gavin Shan, IBM Corporation 2016. | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation; either version 2 of the License, or | |
| * (at your option) any later version. | |
| */ | |
| #include <linux/module.h> | |
| #include <linux/kernel.h> | |
| #include <linux/init.h> | |
| #include <linux/netdevice.h> | |
| #include <linux/skbuff.h> | |
| #include <net/ncsi.h> | |
| #include <net/net_namespace.h> | |
| #include <net/sock.h> | |
| #include "internal.h" | |
| #include "ncsi-pkt.h" | |
| 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) | |
| return -EINVAL; | |
| if (ntohs(h->common.length) != payload) | |
| 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) | |
| return -EINVAL; | |
| /* Validate checksum, which might be zeroes if the | |
| * sender doesn't support checksum according to NCSI | |
| * specification. | |
| */ | |
| pchecksum = (__be32 *)((void *)(h + 1) + payload - 4); | |
| if (ntohl(*pchecksum) == 0) | |
| return 0; | |
| checksum = ncsi_calculate_checksum((unsigned char *)h, | |
| sizeof(*h) + payload - 4); | |
| if (*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 -EBUSY; | |
| 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 -EBUSY; | |
| 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 -EBUSY; | |
| 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 -EBUSY; | |
| ncm->enable = 1; | |
| 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 -EBUSY; | |
| /* 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_filter *ncf; | |
| unsigned short vlan; | |
| int 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; | |
| cmd = (struct ncsi_cmd_svf_pkt *)skb_network_header(nr->cmd); | |
| ncf = nc->filters[NCSI_FILTER_VLAN]; | |
| if (!ncf) | |
| return -ENOENT; | |
| if (cmd->index >= ncf->total) | |
| return -ERANGE; | |
| /* Add or remove the VLAN filter */ | |
| if (!(cmd->enable & 0x1)) { | |
| ret = ncsi_remove_filter(nc, NCSI_FILTER_VLAN, cmd->index); | |
| } else { | |
| vlan = ntohs(cmd->vlan); | |
| ret = ncsi_add_filter(nc, NCSI_FILTER_VLAN, &vlan); | |
| } | |
| return ret; | |
| } | |
| 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 -EBUSY; | |
| /* Update to VLAN mode */ | |
| cmd = (struct ncsi_cmd_ev_pkt *)skb_network_header(nr->cmd); | |
| ncm->enable = 1; | |
| ncm->data[0] = ntohl(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 -EBUSY; | |
| /* 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_filter *ncf; | |
| 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; | |
| /* 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); | |
| switch (cmd->at_e >> 5) { | |
| case 0x0: /* UC address */ | |
| ncf = nc->filters[NCSI_FILTER_UC]; | |
| break; | |
| case 0x1: /* MC address */ | |
| ncf = nc->filters[NCSI_FILTER_MC]; | |
| break; | |
| default: | |
| return -EINVAL; | |
| } | |
| /* Sanity check on the filter */ | |
| if (!ncf) | |
| return -ENOENT; | |
| else if (cmd->index >= ncf->total) | |
| return -ERANGE; | |
| bitmap = &ncf->bitmap; | |
| if (cmd->at_e & 0x1) { | |
| if (test_and_set_bit(cmd->index, bitmap)) | |
| return -EBUSY; | |
| memcpy(ncf->data + 6 * cmd->index, cmd->mac, 6); | |
| } else { | |
| if (!test_and_clear_bit(cmd->index, bitmap)) | |
| return -EBUSY; | |
| memset(ncf->data + 6 * cmd->index, 0, 6); | |
| } | |
| 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 -EBUSY; | |
| /* 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 -EBUSY; | |
| /* 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 -EBUSY; | |
| /* 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 -EBUSY; | |
| /* 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 -EBUSY; | |
| /* 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; | |
| } | |
| 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 to channel's version info */ | |
| ncv = &nc->version; | |
| ncv->version = ntohl(rsp->ncsi_version); | |
| 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_channel_filter *ncf; | |
| size_t size, entry_size; | |
| int cnt, i; | |
| /* Find the channel */ | |
| rsp = (struct ncsi_rsp_gc_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 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; | |
| /* Build filters */ | |
| for (i = 0; i < NCSI_FILTER_MAX; i++) { | |
| switch (i) { | |
| case NCSI_FILTER_VLAN: | |
| cnt = rsp->vlan_cnt; | |
| entry_size = 2; | |
| break; | |
| case NCSI_FILTER_MIXED: | |
| cnt = rsp->mixed_cnt; | |
| entry_size = 6; | |
| break; | |
| case NCSI_FILTER_MC: | |
| cnt = rsp->mc_cnt; | |
| entry_size = 6; | |
| break; | |
| case NCSI_FILTER_UC: | |
| cnt = rsp->uc_cnt; | |
| entry_size = 6; | |
| break; | |
| default: | |
| continue; | |
| } | |
| if (!cnt || nc->filters[i]) | |
| continue; | |
| size = sizeof(*ncf) + cnt * entry_size; | |
| ncf = kzalloc(size, GFP_ATOMIC); | |
| if (!ncf) { | |
| pr_warn("%s: Cannot alloc filter table (%d)\n", | |
| __func__, i); | |
| return -ENOMEM; | |
| } | |
| ncf->index = i; | |
| ncf->total = cnt; | |
| ncf->bitmap = 0x0ul; | |
| nc->filters[i] = ncf; | |
| } | |
| return 0; | |
| } | |
| static int ncsi_rsp_handler_gp(struct ncsi_request *nr) | |
| { | |
| struct ncsi_rsp_gp_pkt *rsp; | |
| struct ncsi_dev_priv *ndp = nr->ndp; | |
| struct ncsi_channel *nc; | |
| unsigned short enable, vlan; | |
| unsigned char *pdata; | |
| int table, 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; | |
| for (i = 0; i < rsp->mac_cnt; i++, pdata += 6) { | |
| if (i >= (nc->filters[NCSI_FILTER_UC]->total + | |
| nc->filters[NCSI_FILTER_MC]->total)) | |
| table = NCSI_FILTER_MIXED; | |
| else if (i >= nc->filters[NCSI_FILTER_UC]->total) | |
| table = NCSI_FILTER_MC; | |
| else | |
| table = NCSI_FILTER_UC; | |
| if (!(enable & (0x1 << i))) | |
| continue; | |
| if (ncsi_find_filter(nc, table, pdata) >= 0) | |
| continue; | |
| ncsi_add_filter(nc, table, pdata); | |
| } | |
| /* VLAN filter table */ | |
| enable = ntohs(rsp->vlan_enable); | |
| for (i = 0; i < rsp->vlan_cnt; i++, pdata += 2) { | |
| if (!(enable & (0x1 << i))) | |
| continue; | |
| vlan = ntohs(*(__be16 *)pdata); | |
| if (ncsi_find_filter(nc, NCSI_FILTER_VLAN, &vlan) >= 0) | |
| continue; | |
| ncsi_add_filter(nc, NCSI_FILTER_VLAN, &vlan); | |
| } | |
| 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 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, 36, 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, 172, ncsi_rsp_handler_gcps }, | |
| { NCSI_PKT_RSP_GNS, 172, ncsi_rsp_handler_gns }, | |
| { NCSI_PKT_RSP_GNPTS, 172, ncsi_rsp_handler_gnpts }, | |
| { NCSI_PKT_RSP_GPS, 8, ncsi_rsp_handler_gps }, | |
| { NCSI_PKT_RSP_OEM, 0, NULL }, | |
| { NCSI_PKT_RSP_PLDM, 0, NULL }, | |
| { NCSI_PKT_RSP_GPUUID, 20, ncsi_rsp_handler_gpuuid } | |
| }; | |
| 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(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) | |
| goto out; | |
| /* Process the packet */ | |
| ret = nrh->handler(nr); | |
| out: | |
| ncsi_free_request(nr); | |
| return ret; | |
| } |