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nfp: parse crypto opcode TLV

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Parse TLV containing a bitmask of supported crypto operations.
The TLV contains a capability bitmask (supported operations)
and enabled bitmask.  Each operation describes the crypto
protocol quite exhaustively (protocol, AEAD, direction).

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2019-06-05 14:11:35 -07:00 committed by David S. Miller
parent d3e4dfe060
commit d9d2d4c54f
2 changed files with 21 additions and 0 deletions
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11
drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.c
View File

@ -103,6 +103,17 @@ int nfp_net_tlv_caps_parse(struct device *dev, u8 __iomem *ctrl_mem,
if (length >= 4)
caps->mbox_cmsg_types = readl(data);
break;
case NFP_NET_CFG_TLV_TYPE_CRYPTO_OPS:
if (length < 32) {
dev_err(dev,
"CRYPTO OPS TLV should be at least 32B, is %dB offset:%u\n",
length, offset);
return -EINVAL;
}
caps->crypto_ops = readl(data);
caps->crypto_enable_off = data - ctrl_mem + 16;
break;
default:
if (!FIELD_GET(NFP_NET_CFG_TLV_HEADER_REQUIRED, hdr))
break;

10
drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h
View File

@ -472,6 +472,11 @@
* Variable, bitmap of control message types supported by the mailbox handler.
* Bit 0 corresponds to message type 0, bit 1 to 1, etc. Control messages are
* encapsulated into simple TLVs, with an end TLV and written to the Mailbox.
*
* %NFP_NET_CFG_TLV_TYPE_CRYPTO_OPS:
* 8 words, bitmaps of supported and enabled crypto operations.
* First 16B (4 words) contains a bitmap of supported crypto operations,
* and next 16B contain the enabled operations.
*/
#define NFP_NET_CFG_TLV_TYPE_UNKNOWN 0
#define NFP_NET_CFG_TLV_TYPE_RESERVED 1
@ -482,6 +487,7 @@
#define NFP_NET_CFG_TLV_TYPE_EXPERIMENTAL1 6
#define NFP_NET_CFG_TLV_TYPE_REPR_CAP 7
#define NFP_NET_CFG_TLV_TYPE_MBOX_CMSG_TYPES 10
#define NFP_NET_CFG_TLV_TYPE_CRYPTO_OPS 11 /* see crypto/fw.h */
struct device;
@ -492,6 +498,8 @@ struct device;
* @mbox_len: vNIC mailbox area length
* @repr_cap: capabilities for representors
* @mbox_cmsg_types: cmsgs which can be passed through the mailbox
* @crypto_ops: supported crypto operations
* @crypto_enable_off: offset of crypto ops enable region
*/
struct nfp_net_tlv_caps {
u32 me_freq_mhz;
@ -499,6 +507,8 @@ struct nfp_net_tlv_caps {
unsigned int mbox_len;
u32 repr_cap;
u32 mbox_cmsg_types;
u32 crypto_ops;
unsigned int crypto_enable_off;
};
int nfp_net_tlv_caps_parse(struct device *dev, u8 __iomem *ctrl_mem,