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Commit d9d2d4c5 authored by Jakub Kicinski's avatar Jakub Kicinski Committed by David S. Miller
Browse files

nfp: parse crypto opcode TLV 



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: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: default avatarDirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d3e4dfe0

drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.c

+11 −0
Original line number Diff line number Diff line
@@ -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;

drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h

+10 −0
Original line number Diff line number Diff line
@@ -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,