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Commit 99a7b0c1 authored by Shannon Nelson's avatar Shannon Nelson Committed by Jeff Kirsher
Browse files

ixgbe: prep IPsec constants for later use 



Pull out a couple of values from a function so they can be used
later elsewhere.

Signed-off-by: default avatarShannon Nelson <shannon.nelson@oracle.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent b2875fbf

drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c

+5 −3
Original line number Diff line number Diff line
@@ -5,6 +5,9 @@ 
#include <net/xfrm.h>

#include <crypto/aead.h>



#define IXGBE_IPSEC_KEY_BITS  160

static const char aes_gcm_name[] = "rfc4106(gcm(aes))";



/**

 * ixgbe_ipsec_set_tx_sa - set the Tx SA registers

 * @hw: hw specific details
@@ -407,7 +410,6 @@ static int ixgbe_ipsec_parse_proto_keys(struct xfrm_state *xs, 
	struct net_device *dev = xs->xso.dev;

	unsigned char *key_data;

	char *alg_name = NULL;

	const char aes_gcm_name[] = "rfc4106(gcm(aes))";

	int key_len;



	if (!xs->aead) {
@@ -435,9 +437,9 @@ static int ixgbe_ipsec_parse_proto_keys(struct xfrm_state *xs, 
	 * we don't need to do any byteswapping.

	 * 160 accounts for 16 byte key and 4 byte salt

	 */

	if (key_len == 160) {

	if (key_len == IXGBE_IPSEC_KEY_BITS) {

		*mysalt = ((u32 *)key_data)[4];

	} else if (key_len != 128) {

	} else if (key_len != (IXGBE_IPSEC_KEY_BITS - (sizeof(*mysalt) * 8))) {

		netdev_err(dev, "IPsec hw offload only supports keys up to 128 bits with a 32 bit salt\n");

		return -EINVAL;

	} else {