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Commit 138635cc authored by Gavin Shan's avatar Gavin Shan Committed by David S. Miller
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net/ncsi: NCSI response packet handler 



The NCSI response packets are sent to MC (Management Controller)
from the remote end. They are responses of NCSI command packets
for multiple purposes: completion status of NCSI command packets,
return NCSI channel's capability or configuration etc.

This defines struct to represent NCSI response packets and introduces
function ncsi_rcv_rsp() which will be used to receive NCSI response
packets and parse them.

Signed-off-by: default avatarGavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: default avatarJoel Stanley <joel@jms.id.au>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6389eaa7

net/ncsi/Makefile

+1 −1
Original line number Diff line number Diff line 
#

# Makefile for NCSI API

#

obj-$(CONFIG_NET_NCSI) += ncsi-cmd.o ncsi-manage.o
 
obj-$(CONFIG_NET_NCSI) += ncsi-cmd.o ncsi-rsp.o ncsi-manage.o

net/ncsi/internal.h

+2 −0
Original line number Diff line number Diff line
@@ -271,5 +271,7 @@ struct ncsi_dev *ncsi_find_dev(struct net_device *dev); 
/* Packet handlers */

u32 ncsi_calculate_checksum(unsigned char *data, int len);

int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca);

int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev,

		 struct packet_type *pt, struct net_device *orig_dev);



#endif /* __NCSI_INTERNAL_H__ */

net/ncsi/ncsi-pkt.h

+208 −0
Original line number Diff line number Diff line
@@ -25,6 +25,12 @@ 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           */

};



/* NCSI common command packet */

struct ncsi_cmd_pkt {

	struct ncsi_cmd_pkt_hdr cmd;      /* Command header */
@@ -32,6 +38,12 @@ struct ncsi_cmd_pkt { 
	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 */
@@ -133,6 +145,157 @@ struct ncsi_cmd_snfc_pkt { 
	unsigned char           pad[22];

};



/* 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;

	unsigned char           pad[10];

};



/* 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            */

};



/* Get package status */

struct ncsi_rsp_gps_pkt {

	struct ncsi_rsp_pkt_hdr rsp;      /* Response header             */

	__be32                  status;   /* Hardware arbitration status */

	__be32                  checksum;

};



/* Get package UUID */

struct ncsi_rsp_gpuuid_pkt {

	struct ncsi_rsp_pkt_hdr rsp;      /* Response header */

	unsigned char           uuid[16]; /* UUID            */

	__be32                  checksum;

};



/* NCSI packet revision */

#define NCSI_PKT_REVISION	0x01
@@ -168,4 +331,49 @@ struct ncsi_cmd_snfc_pkt { 
#define NCSI_PKT_CMD_PLDM	0x51 /* PLDM request over NCSI over RBT  */

#define NCSI_PKT_CMD_GPUUID	0x52 /* Get package UUID                 */



/* 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_GPS	(NCSI_PKT_CMD_GPS    + 0x80)

#define NCSI_PKT_RSP_OEM	(NCSI_PKT_CMD_OEM    + 0x80)

#define NCSI_PKT_RSP_PLDM	(NCSI_PKT_CMD_PLDM   + 0x80)

#define NCSI_PKT_RSP_GPUUID	(NCSI_PKT_CMD_GPUUID + 0x80)



/* 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 */



#endif /* __NCSI_PKT_H__ */

net/ncsi/ncsi-rsp.c

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