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| author | Gavin Shan <gwshan@linux.vnet.ibm.com> | 2016-07-19 04:54:17 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-07-20 06:49:16 +0300 |
| commit | 6389eaa7fa9c3ee6c7d39f6087b86660d17236ac (patch) | |
| tree | 5c915baea8427248f016c7c4630852ee37e3f538 /net/ncsi/internal.h | |
| parent | 2d283bdd079c0ad4da020bbc9e9c2a4280823098 (diff) | |
| download | linux-6389eaa7fa9c3ee6c7d39f6087b86660d17236ac.tar.xz | |
net/ncsi: NCSI command packet handler
The NCSI command packets are sent from MC (Management Controller)
to remote end. They are used for multiple purposes: probe existing
NCSI package/channel, retrieve NCSI channel's capability, configure
NCSI channel etc.
This defines struct to represent NCSI command packets and introduces
function ncsi_xmit_cmd(), which will be used to transmit NCSI command
packet according to the request. The request is represented by struct
ncsi_cmd_arg.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ncsi/internal.h')
| -rw-r--r-- | net/ncsi/internal.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/ncsi/internal.h b/net/ncsi/internal.h index 89028e1f83cd..3d81697a97d0 100644 --- a/net/ncsi/internal.h +++ b/net/ncsi/internal.h @@ -220,6 +220,21 @@ struct ncsi_dev_priv { struct list_head node; /* Form NCSI device list */ }; +struct ncsi_cmd_arg { + struct ncsi_dev_priv *ndp; /* Associated NCSI device */ + unsigned char type; /* Command in the NCSI packet */ + unsigned char id; /* Request ID (sequence number) */ + unsigned char package; /* Destination package ID */ + unsigned char channel; /* Detination channel ID or 0x1f */ + unsigned short payload; /* Command packet payload length */ + bool driven; /* Drive the state machine? */ + union { + unsigned char bytes[16]; /* Command packet specific data */ + unsigned short words[8]; + unsigned int dwords[4]; + }; +}; + extern struct list_head ncsi_dev_list; extern spinlock_t ncsi_dev_lock; @@ -253,4 +268,8 @@ struct ncsi_request *ncsi_alloc_request(struct ncsi_dev_priv *ndp, bool driven); void ncsi_free_request(struct ncsi_request *nr); 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); + #endif /* __NCSI_INTERNAL_H__ */ |