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1259 lines
34 KiB
1259 lines
34 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright Gavin Shan, IBM Corporation 2016. |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/netdevice.h> |
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#include <linux/etherdevice.h> |
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#include <linux/skbuff.h> |
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|
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#include <net/ncsi.h> |
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#include <net/net_namespace.h> |
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#include <net/sock.h> |
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#include <net/genetlink.h> |
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|
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#include "internal.h" |
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#include "ncsi-pkt.h" |
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#include "ncsi-netlink.h" |
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|
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static int ncsi_validate_rsp_pkt(struct ncsi_request *nr, |
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unsigned short payload) |
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{ |
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struct ncsi_rsp_pkt_hdr *h; |
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u32 checksum; |
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__be32 *pchecksum; |
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|
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/* Check NCSI packet header. We don't need validate |
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* the packet type, which should have been checked |
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* before calling this function. |
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*/ |
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h = (struct ncsi_rsp_pkt_hdr *)skb_network_header(nr->rsp); |
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|
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if (h->common.revision != NCSI_PKT_REVISION) { |
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netdev_dbg(nr->ndp->ndev.dev, |
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"NCSI: unsupported header revision\n"); |
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return -EINVAL; |
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} |
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if (ntohs(h->common.length) != payload) { |
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netdev_dbg(nr->ndp->ndev.dev, |
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"NCSI: payload length mismatched\n"); |
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return -EINVAL; |
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} |
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|
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/* Check on code and reason */ |
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if (ntohs(h->code) != NCSI_PKT_RSP_C_COMPLETED || |
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ntohs(h->reason) != NCSI_PKT_RSP_R_NO_ERROR) { |
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netdev_dbg(nr->ndp->ndev.dev, |
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"NCSI: non zero response/reason code %04xh, %04xh\n", |
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ntohs(h->code), ntohs(h->reason)); |
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return -EPERM; |
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} |
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|
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/* Validate checksum, which might be zeroes if the |
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* sender doesn't support checksum according to NCSI |
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* specification. |
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*/ |
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pchecksum = (__be32 *)((void *)(h + 1) + ALIGN(payload, 4) - 4); |
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if (ntohl(*pchecksum) == 0) |
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return 0; |
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checksum = ncsi_calculate_checksum((unsigned char *)h, |
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sizeof(*h) + payload - 4); |
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|
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if (*pchecksum != htonl(checksum)) { |
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netdev_dbg(nr->ndp->ndev.dev, |
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"NCSI: checksum mismatched; recd: %08x calc: %08x\n", |
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*pchecksum, htonl(checksum)); |
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return -EINVAL; |
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} |
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|
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return 0; |
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} |
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static int ncsi_rsp_handler_cis(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_package *np; |
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struct ncsi_channel *nc; |
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unsigned char id; |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, &np, &nc); |
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if (!nc) { |
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if (ndp->flags & NCSI_DEV_PROBED) |
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return -ENXIO; |
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|
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id = NCSI_CHANNEL_INDEX(rsp->rsp.common.channel); |
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nc = ncsi_add_channel(np, id); |
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} |
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return nc ? 0 : -ENODEV; |
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} |
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static int ncsi_rsp_handler_sp(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_package *np; |
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unsigned char id; |
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|
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/* Add the package if it's not existing. Otherwise, |
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* to change the state of its child channels. |
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*/ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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&np, NULL); |
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if (!np) { |
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if (ndp->flags & NCSI_DEV_PROBED) |
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return -ENXIO; |
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id = NCSI_PACKAGE_INDEX(rsp->rsp.common.channel); |
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np = ncsi_add_package(ndp, id); |
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if (!np) |
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return -ENODEV; |
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} |
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return 0; |
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} |
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static int ncsi_rsp_handler_dp(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_package *np; |
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struct ncsi_channel *nc; |
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unsigned long flags; |
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|
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/* Find the package */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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&np, NULL); |
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if (!np) |
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return -ENODEV; |
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|
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/* Change state of all channels attached to the package */ |
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NCSI_FOR_EACH_CHANNEL(np, nc) { |
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spin_lock_irqsave(&nc->lock, flags); |
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nc->state = NCSI_CHANNEL_INACTIVE; |
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spin_unlock_irqrestore(&nc->lock, flags); |
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} |
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return 0; |
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} |
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static int ncsi_rsp_handler_ec(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
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|
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
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ncm = &nc->modes[NCSI_MODE_ENABLE]; |
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if (ncm->enable) |
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return 0; |
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ncm->enable = 1; |
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return 0; |
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} |
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static int ncsi_rsp_handler_dc(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
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int ret; |
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ret = ncsi_validate_rsp_pkt(nr, 4); |
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if (ret) |
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return ret; |
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
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ncm = &nc->modes[NCSI_MODE_ENABLE]; |
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if (!ncm->enable) |
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return 0; |
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ncm->enable = 0; |
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return 0; |
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} |
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static int ncsi_rsp_handler_rc(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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unsigned long flags; |
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|
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
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/* Update state for the specified channel */ |
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spin_lock_irqsave(&nc->lock, flags); |
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nc->state = NCSI_CHANNEL_INACTIVE; |
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spin_unlock_irqrestore(&nc->lock, flags); |
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return 0; |
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} |
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static int ncsi_rsp_handler_ecnt(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
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|
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
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ncm = &nc->modes[NCSI_MODE_TX_ENABLE]; |
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if (ncm->enable) |
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return 0; |
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ncm->enable = 1; |
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return 0; |
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} |
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static int ncsi_rsp_handler_dcnt(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
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|
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
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ncm = &nc->modes[NCSI_MODE_TX_ENABLE]; |
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if (!ncm->enable) |
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return 0; |
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ncm->enable = 0; |
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return 0; |
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} |
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static int ncsi_rsp_handler_ae(struct ncsi_request *nr) |
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{ |
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struct ncsi_cmd_ae_pkt *cmd; |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
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|
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
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/* Check if the AEN has been enabled */ |
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ncm = &nc->modes[NCSI_MODE_AEN]; |
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if (ncm->enable) |
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return 0; |
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|
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/* Update to AEN configuration */ |
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cmd = (struct ncsi_cmd_ae_pkt *)skb_network_header(nr->cmd); |
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ncm->enable = 1; |
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ncm->data[0] = cmd->mc_id; |
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ncm->data[1] = ntohl(cmd->mode); |
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return 0; |
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} |
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static int ncsi_rsp_handler_sl(struct ncsi_request *nr) |
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{ |
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struct ncsi_cmd_sl_pkt *cmd; |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
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cmd = (struct ncsi_cmd_sl_pkt *)skb_network_header(nr->cmd); |
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ncm = &nc->modes[NCSI_MODE_LINK]; |
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ncm->data[0] = ntohl(cmd->mode); |
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ncm->data[1] = ntohl(cmd->oem_mode); |
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return 0; |
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} |
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static int ncsi_rsp_handler_gls(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_gls_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
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unsigned long flags; |
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_gls_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
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ncm = &nc->modes[NCSI_MODE_LINK]; |
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ncm->data[2] = ntohl(rsp->status); |
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ncm->data[3] = ntohl(rsp->other); |
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ncm->data[4] = ntohl(rsp->oem_status); |
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if (nr->flags & NCSI_REQ_FLAG_EVENT_DRIVEN) |
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return 0; |
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/* Reset the channel monitor if it has been enabled */ |
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spin_lock_irqsave(&nc->lock, flags); |
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nc->monitor.state = NCSI_CHANNEL_MONITOR_START; |
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spin_unlock_irqrestore(&nc->lock, flags); |
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return 0; |
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} |
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static int ncsi_rsp_handler_svf(struct ncsi_request *nr) |
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{ |
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struct ncsi_cmd_svf_pkt *cmd; |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_vlan_filter *ncf; |
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unsigned long flags; |
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void *bitmap; |
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
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cmd = (struct ncsi_cmd_svf_pkt *)skb_network_header(nr->cmd); |
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ncf = &nc->vlan_filter; |
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if (cmd->index == 0 || cmd->index > ncf->n_vids) |
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return -ERANGE; |
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|
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/* Add or remove the VLAN filter. Remember HW indexes from 1 */ |
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spin_lock_irqsave(&nc->lock, flags); |
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bitmap = &ncf->bitmap; |
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if (!(cmd->enable & 0x1)) { |
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if (test_and_clear_bit(cmd->index - 1, bitmap)) |
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ncf->vids[cmd->index - 1] = 0; |
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} else { |
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set_bit(cmd->index - 1, bitmap); |
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ncf->vids[cmd->index - 1] = ntohs(cmd->vlan); |
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} |
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spin_unlock_irqrestore(&nc->lock, flags); |
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|
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return 0; |
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} |
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static int ncsi_rsp_handler_ev(struct ncsi_request *nr) |
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{ |
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struct ncsi_cmd_ev_pkt *cmd; |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
|
|
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
|
|
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/* Check if VLAN mode has been enabled */ |
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ncm = &nc->modes[NCSI_MODE_VLAN]; |
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if (ncm->enable) |
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return 0; |
|
|
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/* Update to VLAN mode */ |
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cmd = (struct ncsi_cmd_ev_pkt *)skb_network_header(nr->cmd); |
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ncm->enable = 1; |
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ncm->data[0] = ntohl((__force __be32)cmd->mode); |
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|
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return 0; |
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} |
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|
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static int ncsi_rsp_handler_dv(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
|
|
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
|
|
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/* Check if VLAN mode has been enabled */ |
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ncm = &nc->modes[NCSI_MODE_VLAN]; |
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if (!ncm->enable) |
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return 0; |
|
|
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/* Update to VLAN mode */ |
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ncm->enable = 0; |
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return 0; |
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} |
|
|
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static int ncsi_rsp_handler_sma(struct ncsi_request *nr) |
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{ |
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struct ncsi_cmd_sma_pkt *cmd; |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mac_filter *ncf; |
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unsigned long flags; |
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void *bitmap; |
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bool enabled; |
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int index; |
|
|
|
|
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
|
|
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/* According to NCSI spec 1.01, the mixed filter table |
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* isn't supported yet. |
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*/ |
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cmd = (struct ncsi_cmd_sma_pkt *)skb_network_header(nr->cmd); |
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enabled = cmd->at_e & 0x1; |
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ncf = &nc->mac_filter; |
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bitmap = &ncf->bitmap; |
|
|
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if (cmd->index == 0 || |
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cmd->index > ncf->n_uc + ncf->n_mc + ncf->n_mixed) |
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return -ERANGE; |
|
|
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index = (cmd->index - 1) * ETH_ALEN; |
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spin_lock_irqsave(&nc->lock, flags); |
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if (enabled) { |
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set_bit(cmd->index - 1, bitmap); |
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memcpy(&ncf->addrs[index], cmd->mac, ETH_ALEN); |
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} else { |
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clear_bit(cmd->index - 1, bitmap); |
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eth_zero_addr(&ncf->addrs[index]); |
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} |
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spin_unlock_irqrestore(&nc->lock, flags); |
|
|
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return 0; |
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} |
|
|
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static int ncsi_rsp_handler_ebf(struct ncsi_request *nr) |
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{ |
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struct ncsi_cmd_ebf_pkt *cmd; |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
|
|
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/* Find the package and channel */ |
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
|
|
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/* Check if broadcast filter has been enabled */ |
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ncm = &nc->modes[NCSI_MODE_BC]; |
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if (ncm->enable) |
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return 0; |
|
|
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/* Update to broadcast filter mode */ |
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cmd = (struct ncsi_cmd_ebf_pkt *)skb_network_header(nr->cmd); |
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ncm->enable = 1; |
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ncm->data[0] = ntohl(cmd->mode); |
|
|
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return 0; |
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} |
|
|
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static int ncsi_rsp_handler_dbf(struct ncsi_request *nr) |
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{ |
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struct ncsi_rsp_pkt *rsp; |
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struct ncsi_dev_priv *ndp = nr->ndp; |
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struct ncsi_channel *nc; |
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struct ncsi_channel_mode *ncm; |
|
|
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rsp = (struct ncsi_rsp_pkt *)skb_network_header(nr->rsp); |
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ncsi_find_package_and_channel(ndp, rsp->rsp.common.channel, |
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NULL, &nc); |
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if (!nc) |
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return -ENODEV; |
|
|
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/* Check if broadcast filter isn't enabled */ |
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ncm = &nc->modes[NCSI_MODE_BC]; |
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if (!ncm->enable) |
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return 0; |
|
|
|
/* Update to broadcast filter mode */ |
|
ncm->enable = 0; |
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ncm->data[0] = 0; |
|
|
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return 0; |
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} |
|
|
|
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; |
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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 Mellanox command Get Mac Address */ |
|
static int ncsi_rsp_handler_oem_mlx_gma(struct ncsi_request *nr) |
|
{ |
|
struct ncsi_dev_priv *ndp = nr->ndp; |
|
struct net_device *ndev = ndp->ndev.dev; |
|
const struct net_device_ops *ops = ndev->netdev_ops; |
|
struct ncsi_rsp_oem_pkt *rsp; |
|
struct sockaddr saddr; |
|
int ret = 0; |
|
|
|
/* Get the response header */ |
|
rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp); |
|
|
|
saddr.sa_family = ndev->type; |
|
ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE; |
|
memcpy(saddr.sa_data, &rsp->data[MLX_MAC_ADDR_OFFSET], ETH_ALEN); |
|
/* Set the flag for GMA command which should only be called once */ |
|
ndp->gma_flag = 1; |
|
|
|
ret = ops->ndo_set_mac_address(ndev, &saddr); |
|
if (ret < 0) |
|
netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n"); |
|
|
|
return ret; |
|
} |
|
|
|
/* 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_mlx_gma(nr); |
|
return 0; |
|
} |
|
|
|
/* Response handler for Broadcom command Get Mac Address */ |
|
static int ncsi_rsp_handler_oem_bcm_gma(struct ncsi_request *nr) |
|
{ |
|
struct ncsi_dev_priv *ndp = nr->ndp; |
|
struct net_device *ndev = ndp->ndev.dev; |
|
const struct net_device_ops *ops = ndev->netdev_ops; |
|
struct ncsi_rsp_oem_pkt *rsp; |
|
struct sockaddr saddr; |
|
int ret = 0; |
|
|
|
/* Get the response header */ |
|
rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp); |
|
|
|
saddr.sa_family = ndev->type; |
|
ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE; |
|
memcpy(saddr.sa_data, &rsp->data[BCM_MAC_ADDR_OFFSET], ETH_ALEN); |
|
/* Increase mac address by 1 for BMC's address */ |
|
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; |
|
|
|
ret = ops->ndo_set_mac_address(ndev, &saddr); |
|
if (ret < 0) |
|
netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n"); |
|
|
|
return ret; |
|
} |
|
|
|
/* 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_bcm_gma(nr); |
|
return 0; |
|
} |
|
|
|
/* Response handler for Intel command Get Mac Address */ |
|
static int ncsi_rsp_handler_oem_intel_gma(struct ncsi_request *nr) |
|
{ |
|
struct ncsi_dev_priv *ndp = nr->ndp; |
|
struct net_device *ndev = ndp->ndev.dev; |
|
const struct net_device_ops *ops = ndev->netdev_ops; |
|
struct ncsi_rsp_oem_pkt *rsp; |
|
struct sockaddr saddr; |
|
int ret = 0; |
|
|
|
/* Get the response header */ |
|
rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp); |
|
|
|
saddr.sa_family = ndev->type; |
|
ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE; |
|
memcpy(saddr.sa_data, &rsp->data[INTEL_MAC_ADDR_OFFSET], ETH_ALEN); |
|
/* Increase mac address by 1 for BMC's address */ |
|
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; |
|
|
|
ret = ops->ndo_set_mac_address(ndev, &saddr); |
|
if (ret < 0) |
|
netdev_warn(ndev, |
|
"NCSI: 'Writing mac address to device failed\n"); |
|
|
|
return ret; |
|
} |
|
|
|
/* 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_intel_gma(nr); |
|
|
|
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 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; |
|
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, |
|
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; |
|
|
|
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; |
|
|
|
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 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 } |
|
}; |
|
|
|
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; |
|
}
|
|
|