[PATCH qemu 37/38] slirp: add a fake NCSI backend
Andrew Jeffery
andrew at aj.id.au
Mon Nov 28 13:26:23 AEDT 2016
On Fri, 2016-11-18 at 15:22 +0100, Cédric Le Goater wrote:
> This only reverses the NCSI packets to make the Linux driver happy.
>
> The NCSI header file <ncsi-pkt.h> comes from Linux.
>
> Signed-off-by: Cédric Le Goater <clg at kaod.org>
Tested-by: Andrew Jeffery <andrew at aj.id.au>
> ---
> include/net/eth.h | 1 +
> slirp/Makefile.objs | 2 +-
> slirp/ncsi-pkt.h | 394 ++++++++++++++++++++++++++++++++++++++++++++++++++++
> slirp/ncsi.c | 95 +++++++++++++
> slirp/slirp.c | 4 +
> slirp/slirp.h | 3 +
> 6 files changed, 498 insertions(+), 1 deletion(-)
> create mode 100644 slirp/ncsi-pkt.h
> create mode 100644 slirp/ncsi.c
>
> diff --git a/include/net/eth.h b/include/net/eth.h
> index 2013175857ba..6237004559bc 100644
> --- a/include/net/eth.h
> +++ b/include/net/eth.h
> @@ -209,6 +209,7 @@ struct tcp_hdr {
> #define ETH_P_IPV6 (0x86dd)
> #define ETH_P_VLAN (0x8100)
> #define ETH_P_DVLAN (0x88a8)
> +#define ETH_P_NCSI (0x88f8) /* NCSI protocol */
> #define ETH_P_UNKNOWN (0xffff)
> #define VLAN_VID_MASK 0x0fff
> #define IP_HEADER_VERSION_4 (4)
> diff --git a/slirp/Makefile.objs b/slirp/Makefile.objs
> index 1baa1f1c7cfb..28049b03cddc 100644
> --- a/slirp/Makefile.objs
> +++ b/slirp/Makefile.objs
> @@ -2,4 +2,4 @@ common-obj-y = cksum.o if.o ip_icmp.o ip6_icmp.o ip6_input.o ip6_output.o \
> ip_input.o ip_output.o dnssearch.o dhcpv6.o
> common-obj-y += slirp.o mbuf.o misc.o sbuf.o socket.o tcp_input.o tcp_output.o
> common-obj-y += tcp_subr.o tcp_timer.o udp.o udp6.o bootp.o tftp.o arp_table.o \
> - ndp_table.o
> + ndp_table.o ncsi.o
> diff --git a/slirp/ncsi-pkt.h b/slirp/ncsi-pkt.h
> new file mode 100644
> index 000000000000..20c787103ec2
> --- /dev/null
> +++ b/slirp/ncsi-pkt.h
> @@ -0,0 +1,394 @@
> +#ifndef NCSI_PKT_H
> +#define NCSI_PKT_H
> +
> +#define __be32 uint32_t
> +#define __be16 uint16_t
> +
> +struct ncsi_pkt_hdr {
> + unsigned char mc_id; /* Management controller ID */
> + unsigned char revision; /* NCSI version - 0x01 */
> + unsigned char reserved; /* Reserved */
> + unsigned char id; /* Packet sequence number */
> + unsigned char type; /* Packet type */
> + unsigned char channel; /* Network controller ID */
> + __be16 length; /* Payload length */
> + __be32 reserved1[2]; /* Reserved */
> +};
> +
> +struct ncsi_cmd_pkt_hdr {
> + struct ncsi_pkt_hdr common; /* Common NCSI packet header */
> +};
> +
> +struct ncsi_rsp_pkt_hdr {
> + struct ncsi_pkt_hdr common; /* Common NCSI packet header */
> + __be16 code; /* Response code */
> + __be16 reason; /* Response reason */
> +};
> +
> +struct ncsi_aen_pkt_hdr {
> + struct ncsi_pkt_hdr common; /* Common NCSI packet header */
> + unsigned char reserved2[3]; /* Reserved */
> + unsigned char type; /* AEN packet type */
> +};
> +
> +/* NCSI common command and response packets */
> +struct ncsi_cmd_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[26];
> +};
> +
> +struct ncsi_rsp_pkt {
> + struct ncsi_rsp_pkt_hdr rsp; /* Response header */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[22];
> +};
> +
> +/* Select Package */
> +struct ncsi_cmd_sp_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + unsigned char reserved[3]; /* Reserved */
> + unsigned char hw_arbitration; /* HW arbitration */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[22];
> +};
> +
> +/* Disable Channel */
> +struct ncsi_cmd_dc_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + unsigned char reserved[3]; /* Reserved */
> + unsigned char ald; /* Allow link down */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[22];
> +};
> +
> +/* Reset Channel */
> +struct ncsi_cmd_rc_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + __be32 reserved; /* Reserved */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[22];
> +};
> +
> +/* AEN Enable */
> +struct ncsi_cmd_ae_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + unsigned char reserved[3]; /* Reserved */
> + unsigned char mc_id; /* MC ID */
> + __be32 mode; /* AEN working mode */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[18];
> +};
> +
> +/* Set Link */
> +struct ncsi_cmd_sl_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + __be32 mode; /* Link working mode */
> + __be32 oem_mode; /* OEM link mode */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[18];
> +};
> +
> +/* Get Link Status */
> +struct ncsi_rsp_gls_pkt {
> + struct ncsi_rsp_pkt_hdr rsp; /* Response header */
> + __be32 status; /* Link status */
> + __be32 other; /* Other indications */
> + __be32 oem_status; /* OEM link status */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[10];
> +};
> +
> +/* Set VLAN Filter */
> +struct ncsi_cmd_svf_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + __be16 reserved; /* Reserved */
> + __be16 vlan; /* VLAN ID */
> + __be16 reserved1; /* Reserved */
> + unsigned char index; /* VLAN table index */
> + unsigned char enable; /* Enable or disable */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[14];
> +};
> +
> +/* Enable VLAN */
> +struct ncsi_cmd_ev_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + unsigned char reserved[3]; /* Reserved */
> + unsigned char mode; /* VLAN filter mode */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[22];
> +};
> +
> +/* Set MAC Address */
> +struct ncsi_cmd_sma_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + unsigned char mac[6]; /* MAC address */
> + unsigned char index; /* MAC table index */
> + unsigned char at_e; /* Addr type and operation */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[18];
> +};
> +
> +/* Enable Broadcast Filter */
> +struct ncsi_cmd_ebf_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + __be32 mode; /* Filter mode */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[22];
> +};
> +
> +/* Enable Global Multicast Filter */
> +struct ncsi_cmd_egmf_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + __be32 mode; /* Global MC mode */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[22];
> +};
> +
> +/* Set NCSI Flow Control */
> +struct ncsi_cmd_snfc_pkt {
> + struct ncsi_cmd_pkt_hdr cmd; /* Command header */
> + unsigned char reserved[3]; /* Reserved */
> + unsigned char mode; /* Flow control mode */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[22];
> +};
> +
> +/* Get Version ID */
> +struct ncsi_rsp_gvi_pkt {
> + struct ncsi_rsp_pkt_hdr rsp; /* Response header */
> + __be32 ncsi_version; /* NCSI version */
> + unsigned char reserved[3]; /* Reserved */
> + unsigned char alpha2; /* NCSI version */
> + unsigned char fw_name[12]; /* f/w name string */
> + __be32 fw_version; /* f/w version */
> + __be16 pci_ids[4]; /* PCI IDs */
> + __be32 mf_id; /* Manufacture ID */
> + __be32 checksum;
> +};
> +
> +/* Get Capabilities */
> +struct ncsi_rsp_gc_pkt {
> + struct ncsi_rsp_pkt_hdr rsp; /* Response header */
> + __be32 cap; /* Capabilities */
> + __be32 bc_cap; /* Broadcast cap */
> + __be32 mc_cap; /* Multicast cap */
> + __be32 buf_cap; /* Buffering cap */
> + __be32 aen_cap; /* AEN cap */
> + unsigned char vlan_cnt; /* VLAN filter count */
> + unsigned char mixed_cnt; /* Mix filter count */
> + unsigned char mc_cnt; /* MC filter count */
> + unsigned char uc_cnt; /* UC filter count */
> + unsigned char reserved[2]; /* Reserved */
> + unsigned char vlan_mode; /* VLAN mode */
> + unsigned char channel_cnt; /* Channel count */
> + __be32 checksum; /* Checksum */
> +};
> +
> +/* Get Parameters */
> +struct ncsi_rsp_gp_pkt {
> + struct ncsi_rsp_pkt_hdr rsp; /* Response header */
> + unsigned char mac_cnt; /* Number of MAC addr */
> + unsigned char reserved[2]; /* Reserved */
> + unsigned char mac_enable; /* MAC addr enable flags */
> + unsigned char vlan_cnt; /* VLAN tag count */
> + unsigned char reserved1; /* Reserved */
> + __be16 vlan_enable; /* VLAN tag enable flags */
> + __be32 link_mode; /* Link setting */
> + __be32 bc_mode; /* BC filter mode */
> + __be32 valid_modes; /* Valid mode parameters */
> + unsigned char vlan_mode; /* VLAN mode */
> + unsigned char fc_mode; /* Flow control mode */
> + unsigned char reserved2[2]; /* Reserved */
> + __be32 aen_mode; /* AEN mode */
> + unsigned char mac[6]; /* Supported MAC addr */
> + __be16 vlan; /* Supported VLAN tags */
> + __be32 checksum; /* Checksum */
> +};
> +
> +/* Get Controller Packet Statistics */
> +struct ncsi_rsp_gcps_pkt {
> + struct ncsi_rsp_pkt_hdr rsp; /* Response header */
> + __be32 cnt_hi; /* Counter cleared */
> + __be32 cnt_lo; /* Counter cleared */
> + __be32 rx_bytes; /* Rx bytes */
> + __be32 tx_bytes; /* Tx bytes */
> + __be32 rx_uc_pkts; /* Rx UC packets */
> + __be32 rx_mc_pkts; /* Rx MC packets */
> + __be32 rx_bc_pkts; /* Rx BC packets */
> + __be32 tx_uc_pkts; /* Tx UC packets */
> + __be32 tx_mc_pkts; /* Tx MC packets */
> + __be32 tx_bc_pkts; /* Tx BC packets */
> + __be32 fcs_err; /* FCS errors */
> + __be32 align_err; /* Alignment errors */
> + __be32 false_carrier; /* False carrier detection */
> + __be32 runt_pkts; /* Rx runt packets */
> + __be32 jabber_pkts; /* Rx jabber packets */
> + __be32 rx_pause_xon; /* Rx pause XON frames */
> + __be32 rx_pause_xoff; /* Rx XOFF frames */
> + __be32 tx_pause_xon; /* Tx XON frames */
> + __be32 tx_pause_xoff; /* Tx XOFF frames */
> + __be32 tx_s_collision; /* Single collision frames */
> + __be32 tx_m_collision; /* Multiple collision frames */
> + __be32 l_collision; /* Late collision frames */
> + __be32 e_collision; /* Excessive collision frames */
> + __be32 rx_ctl_frames; /* Rx control frames */
> + __be32 rx_64_frames; /* Rx 64-bytes frames */
> + __be32 rx_127_frames; /* Rx 65-127 bytes frames */
> + __be32 rx_255_frames; /* Rx 128-255 bytes frames */
> + __be32 rx_511_frames; /* Rx 256-511 bytes frames */
> + __be32 rx_1023_frames; /* Rx 512-1023 bytes frames */
> + __be32 rx_1522_frames; /* Rx 1024-1522 bytes frames */
> + __be32 rx_9022_frames; /* Rx 1523-9022 bytes frames */
> + __be32 tx_64_frames; /* Tx 64-bytes frames */
> + __be32 tx_127_frames; /* Tx 65-127 bytes frames */
> + __be32 tx_255_frames; /* Tx 128-255 bytes frames */
> + __be32 tx_511_frames; /* Tx 256-511 bytes frames */
> + __be32 tx_1023_frames; /* Tx 512-1023 bytes frames */
> + __be32 tx_1522_frames; /* Tx 1024-1522 bytes frames */
> + __be32 tx_9022_frames; /* Tx 1523-9022 bytes frames */
> + __be32 rx_valid_bytes; /* Rx valid bytes */
> + __be32 rx_runt_pkts; /* Rx error runt packets */
> + __be32 rx_jabber_pkts; /* Rx error jabber packets */
> + __be32 checksum; /* Checksum */
> +};
> +
> +/* Get NCSI Statistics */
> +struct ncsi_rsp_gns_pkt {
> + struct ncsi_rsp_pkt_hdr rsp; /* Response header */
> + __be32 rx_cmds; /* Rx NCSI commands */
> + __be32 dropped_cmds; /* Dropped commands */
> + __be32 cmd_type_errs; /* Command type errors */
> + __be32 cmd_csum_errs; /* Command checksum errors */
> + __be32 rx_pkts; /* Rx NCSI packets */
> + __be32 tx_pkts; /* Tx NCSI packets */
> + __be32 tx_aen_pkts; /* Tx AEN packets */
> + __be32 checksum; /* Checksum */
> +};
> +
> +/* Get NCSI Pass-through Statistics */
> +struct ncsi_rsp_gnpts_pkt {
> + struct ncsi_rsp_pkt_hdr rsp; /* Response header */
> + __be32 tx_pkts; /* Tx packets */
> + __be32 tx_dropped; /* Tx dropped packets */
> + __be32 tx_channel_err; /* Tx channel errors */
> + __be32 tx_us_err; /* Tx undersize errors */
> + __be32 rx_pkts; /* Rx packets */
> + __be32 rx_dropped; /* Rx dropped packets */
> + __be32 rx_channel_err; /* Rx channel errors */
> + __be32 rx_us_err; /* Rx undersize errors */
> + __be32 rx_os_err; /* Rx oversize errors */
> + __be32 checksum; /* Checksum */
> +};
> +
> +/* AEN: Link State Change */
> +struct ncsi_aen_lsc_pkt {
> + struct ncsi_aen_pkt_hdr aen; /* AEN header */
> + __be32 status; /* Link status */
> + __be32 oem_status; /* OEM link status */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[14];
> +};
> +
> +/* AEN: Configuration Required */
> +struct ncsi_aen_cr_pkt {
> + struct ncsi_aen_pkt_hdr aen; /* AEN header */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[22];
> +};
> +
> +/* AEN: Host Network Controller Driver Status Change */
> +struct ncsi_aen_hncdsc_pkt {
> + struct ncsi_aen_pkt_hdr aen; /* AEN header */
> + __be32 status; /* Status */
> + __be32 checksum; /* Checksum */
> + unsigned char pad[18];
> +};
> +
> +/* NCSI packet revision */
> +#define NCSI_PKT_REVISION 0x01
> +
> +/* NCSI packet commands */
> +#define NCSI_PKT_CMD_CIS 0x00 /* Clear Initial State */
> +#define NCSI_PKT_CMD_SP 0x01 /* Select Package */
> +#define NCSI_PKT_CMD_DP 0x02 /* Deselect Package */
> +#define NCSI_PKT_CMD_EC 0x03 /* Enable Channel */
> +#define NCSI_PKT_CMD_DC 0x04 /* Disable Channel */
> +#define NCSI_PKT_CMD_RC 0x05 /* Reset Channel */
> +#define NCSI_PKT_CMD_ECNT 0x06 /* Enable Channel Network Tx */
> +#define NCSI_PKT_CMD_DCNT 0x07 /* Disable Channel Network Tx */
> +#define NCSI_PKT_CMD_AE 0x08 /* AEN Enable */
> +#define NCSI_PKT_CMD_SL 0x09 /* Set Link */
> +#define NCSI_PKT_CMD_GLS 0x0a /* Get Link */
> +#define NCSI_PKT_CMD_SVF 0x0b /* Set VLAN Filter */
> +#define NCSI_PKT_CMD_EV 0x0c /* Enable VLAN */
> +#define NCSI_PKT_CMD_DV 0x0d /* Disable VLAN */
> +#define NCSI_PKT_CMD_SMA 0x0e /* Set MAC address */
> +#define NCSI_PKT_CMD_EBF 0x10 /* Enable Broadcast Filter */
> +#define NCSI_PKT_CMD_DBF 0x11 /* Disable Broadcast Filter */
> +#define NCSI_PKT_CMD_EGMF 0x12 /* Enable Global Multicast Filter */
> +#define NCSI_PKT_CMD_DGMF 0x13 /* Disable Global Multicast Filter */
> +#define NCSI_PKT_CMD_SNFC 0x14 /* Set NCSI Flow Control */
> +#define NCSI_PKT_CMD_GVI 0x15 /* Get Version ID */
> +#define NCSI_PKT_CMD_GC 0x16 /* Get Capabilities */
> +#define NCSI_PKT_CMD_GP 0x17 /* Get Parameters */
> +#define NCSI_PKT_CMD_GCPS 0x18 /* Get Controller Packet Statistics */
> +#define NCSI_PKT_CMD_GNS 0x19 /* Get NCSI Statistics */
> +#define NCSI_PKT_CMD_GNPTS 0x1a /* Get NCSI Pass-throu Statistics */
> +#define NCSI_PKT_CMD_OEM 0x50 /* OEM */
> +
> +/* NCSI packet responses */
> +#define NCSI_PKT_RSP_CIS (NCSI_PKT_CMD_CIS + 0x80)
> +#define NCSI_PKT_RSP_SP (NCSI_PKT_CMD_SP + 0x80)
> +#define NCSI_PKT_RSP_DP (NCSI_PKT_CMD_DP + 0x80)
> +#define NCSI_PKT_RSP_EC (NCSI_PKT_CMD_EC + 0x80)
> +#define NCSI_PKT_RSP_DC (NCSI_PKT_CMD_DC + 0x80)
> +#define NCSI_PKT_RSP_RC (NCSI_PKT_CMD_RC + 0x80)
> +#define NCSI_PKT_RSP_ECNT (NCSI_PKT_CMD_ECNT + 0x80)
> +#define NCSI_PKT_RSP_DCNT (NCSI_PKT_CMD_DCNT + 0x80)
> +#define NCSI_PKT_RSP_AE (NCSI_PKT_CMD_AE + 0x80)
> +#define NCSI_PKT_RSP_SL (NCSI_PKT_CMD_SL + 0x80)
> +#define NCSI_PKT_RSP_GLS (NCSI_PKT_CMD_GLS + 0x80)
> +#define NCSI_PKT_RSP_SVF (NCSI_PKT_CMD_SVF + 0x80)
> +#define NCSI_PKT_RSP_EV (NCSI_PKT_CMD_EV + 0x80)
> +#define NCSI_PKT_RSP_DV (NCSI_PKT_CMD_DV + 0x80)
> +#define NCSI_PKT_RSP_SMA (NCSI_PKT_CMD_SMA + 0x80)
> +#define NCSI_PKT_RSP_EBF (NCSI_PKT_CMD_EBF + 0x80)
> +#define NCSI_PKT_RSP_DBF (NCSI_PKT_CMD_DBF + 0x80)
> +#define NCSI_PKT_RSP_EGMF (NCSI_PKT_CMD_EGMF + 0x80)
> +#define NCSI_PKT_RSP_DGMF (NCSI_PKT_CMD_DGMF + 0x80)
> +#define NCSI_PKT_RSP_SNFC (NCSI_PKT_CMD_SNFC + 0x80)
> +#define NCSI_PKT_RSP_GVI (NCSI_PKT_CMD_GVI + 0x80)
> +#define NCSI_PKT_RSP_GC (NCSI_PKT_CMD_GC + 0x80)
> +#define NCSI_PKT_RSP_GP (NCSI_PKT_CMD_GP + 0x80)
> +#define NCSI_PKT_RSP_GCPS (NCSI_PKT_CMD_GCPS + 0x80)
> +#define NCSI_PKT_RSP_GNS (NCSI_PKT_CMD_GNS + 0x80)
> +#define NCSI_PKT_RSP_GNPTS (NCSI_PKT_CMD_GNPTS + 0x80)
> +#define NCSI_PKT_RSP_OEM (NCSI_PKT_CMD_OEM + 0x80)
> +
> +/* NCSI packet type: AEN */
> +#define NCSI_PKT_AEN 0xFF /* AEN Packet */
> +#define NCSI_PKT_AEN_LSC 0x00 /* Link status change */
> +#define NCSI_PKT_AEN_CR 0x01 /* Configuration required */
> +#define NCSI_PKT_AEN_HNCDSC 0x02 /* HNC driver status change */
> +
> +/* NCSI response code/reason */
> +#define NCSI_PKT_RSP_C_COMPLETED 0x0000 /* Command Completed */
> +#define NCSI_PKT_RSP_C_FAILED 0x0001 /* Command Failed */
> +#define NCSI_PKT_RSP_C_UNAVAILABLE 0x0002 /* Command Unavailable */
> +#define NCSI_PKT_RSP_C_UNSUPPORTED 0x0003 /* Command Unsupported */
> +#define NCSI_PKT_RSP_R_NO_ERROR 0x0000 /* No Error */
> +#define NCSI_PKT_RSP_R_INTERFACE 0x0001 /* Interface not ready */
> +#define NCSI_PKT_RSP_R_PARAM 0x0002 /* Invalid Parameter */
> +#define NCSI_PKT_RSP_R_CHANNEL 0x0003 /* Channel not Ready */
> +#define NCSI_PKT_RSP_R_PACKAGE 0x0004 /* Package not Ready */
> +#define NCSI_PKT_RSP_R_LENGTH 0x0005 /* Invalid payload length */
> +#define NCSI_PKT_RSP_R_UNKNOWN 0x7fff /* Command type unsupported */
> +
> +/* NCSI AEN packet type */
> +#define NCSI_PKT_AEN_LSC 0x00 /* Link status change */
> +#define NCSI_PKT_AEN_CR 0x01 /* Configuration required */
> +#define NCSI_PKT_AEN_HNCDSC 0x02 /* Host driver status change */
> +
> +#endif /* NCSI_PKT_H */
> diff --git a/slirp/ncsi.c b/slirp/ncsi.c
> new file mode 100644
> index 000000000000..8f8f4609eff5
> --- /dev/null
> +++ b/slirp/ncsi.c
> @@ -0,0 +1,95 @@
> +/*
> + * NCSI
> + *
> + * Copyright (C) 2016 IBM Corp.
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License
> + * as published by the Free Software Foundation; either version 2
> + * of the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, see <http://www.gnu.org/licenses/>.
> + *
> + */
> +#include "qemu/osdep.h"
> +#include <slirp.h>
> +
> +#include "ncsi-pkt.h"
> +
> +#if defined(_WIN32)
> +/* Windows ntohl() returns an u_long value.
> + * Add a type cast to match the format strings. */
> +# define ntohl(n) ((uint32_t)ntohl(n))
> +#endif
> +
> +/*
> + * ncsi header + checksum + max payload (NCSI_PKT_CMD_GVI)
> + */
> +#define NCSI_LEN (sizeof(struct ncsi_pkt_hdr) + 4 + 36)
> +
> +void ncsi_input(Slirp *slirp, const uint8_t *pkt, int pkt_len)
> +{
> + struct ncsi_pkt_hdr *nh = (struct ncsi_pkt_hdr *)(pkt + ETH_HLEN);
> + uint8_t ncsi_reply[ETH_HLEN + NCSI_LEN];
> + struct ethhdr *reh = (struct ethhdr *)ncsi_reply;
> + struct ncsi_rsp_pkt_hdr *rnh = (struct ncsi_rsp_pkt_hdr *)
> + (ncsi_reply + ETH_HLEN);
> +
> + memset(ncsi_reply, 0, sizeof(ncsi_reply));
> +
> + memset(reh->h_dest, 0xff, ETH_ALEN);
> + memset(reh->h_source, 0xff, ETH_ALEN);
> + reh->h_proto = htons(ETH_P_NCSI);
> +
> + rnh->common.mc_id = nh->mc_id;
> + rnh->common.revision = NCSI_PKT_REVISION;
> + rnh->common.reserved = 0;
> + rnh->common.id = nh->id;
> + rnh->common.type = nh->type + 0x80;
> + rnh->common.channel = nh->channel;
> + rnh->common.length = htons(4);
> + rnh->common.reserved1[0] = 0;
> + rnh->common.reserved1[1] = 0;
> + rnh->code = htons(NCSI_PKT_RSP_C_COMPLETED);
> + rnh->reason = htons(NCSI_PKT_RSP_R_NO_ERROR);
> +
> + switch (nh->type) {
> + case NCSI_PKT_CMD_SMA:
> + rnh->common.length = htons(4);
> + break;
> + case NCSI_PKT_CMD_GVI:
> + rnh->common.length = htons(36);
> + break;
> + case NCSI_PKT_CMD_GC: {
> + struct ncsi_rsp_gc_pkt *rsp = (struct ncsi_rsp_gc_pkt *) rnh;
> +
> + rnh->common.length = htons(32);
> + rsp->cap = htonl(~0);
> + rsp->bc_cap = htonl(~0);
> + rsp->mc_cap = htonl(~0);
> + rsp->buf_cap = htonl(~0);
> + rsp->aen_cap = htonl(~0);
> + rsp->vlan_mode = 0xff;
> + rsp->uc_cnt = 2;
> + break;
> + }
> +
> + case NCSI_PKT_CMD_GLS: {
> + struct ncsi_rsp_gls_pkt *rsp = (struct ncsi_rsp_gls_pkt *) rnh;
> +
> + rnh->common.length = htons(16);
> + rsp->status = htonl(0x1);
> + break;
> + }
> + default:
> + break;
> + }
> +
> + slirp_output(slirp->opaque, ncsi_reply, sizeof(ncsi_reply));
> +}
> diff --git a/slirp/slirp.c b/slirp/slirp.c
> index 6e2b4e5a9010..c445c474e7e5 100644
> --- a/slirp/slirp.c
> +++ b/slirp/slirp.c
> @@ -870,6 +870,10 @@ void slirp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len)
> }
> break;
>
> + case ETH_P_NCSI:
> + ncsi_input(slirp, pkt, pkt_len);
> + break;
> +
> default:
> break;
> }
> diff --git a/slirp/slirp.h b/slirp/slirp.h
> index a1f31391341d..ef75357d4d75 100644
> --- a/slirp/slirp.h
> +++ b/slirp/slirp.h
> @@ -292,6 +292,9 @@ int tcp_emu(struct socket *, struct mbuf *);
> int tcp_ctl(struct socket *);
> struct tcpcb *tcp_drop(struct tcpcb *tp, int err);
>
> +/* ncsi.c */
> +void ncsi_input(Slirp *slirp, const uint8_t *pkt, int pkt_len);
> +
> #ifndef _WIN32
> #define min(x,y) ((x) < (y) ? (x) : (y))
> #define max(x,y) ((x) > (y) ? (x) : (y))
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