1018 lines
27 KiB
C
1018 lines
27 KiB
C
/*
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* Copyright Gavin Shan, IBM Corporation 2016.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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/skbuff.h>
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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 "internal.h"
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#include "ncsi-pkt.h"
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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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/* 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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if (h->common.revision != NCSI_PKT_REVISION)
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return -EINVAL;
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if (ntohs(h->common.length) != payload)
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return -EINVAL;
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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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return -EINVAL;
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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) + payload - 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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if (*pchecksum != htonl(checksum))
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return -EINVAL;
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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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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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/* 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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/* 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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/* 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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/* 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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/* 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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/* 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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/* 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_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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/* 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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/* 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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/* 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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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(cmd->mode);
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return 0;
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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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memset(&ncf->addrs[index], 0, ETH_ALEN);
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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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|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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 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, 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) {
|
|
netdev_warn(ndp->ndev.dev,
|
|
"NCSI: 'bad' packet ignored for type 0x%x\n",
|
|
hdr->type);
|
|
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:
|
|
ncsi_free_request(nr);
|
|
return ret;
|
|
}
|