603 lines
15 KiB
C
603 lines
15 KiB
C
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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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/* Copyright (C) 2019 Netronome Systems, Inc. */
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#include <linux/bitfield.h>
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#include <linux/ipv6.h>
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#include <linux/skbuff.h>
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#include <linux/string.h>
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#include <net/inet6_hashtables.h>
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#include <net/tls.h>
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#include "../ccm.h"
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#include "../nfp_net.h"
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#include "crypto.h"
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#include "fw.h"
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#define NFP_NET_TLS_CCM_MBOX_OPS_MASK \
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(BIT(NFP_CCM_TYPE_CRYPTO_RESET) | \
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BIT(NFP_CCM_TYPE_CRYPTO_ADD) | \
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BIT(NFP_CCM_TYPE_CRYPTO_DEL) | \
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BIT(NFP_CCM_TYPE_CRYPTO_UPDATE))
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#define NFP_NET_TLS_OPCODE_MASK_RX \
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BIT(NFP_NET_CRYPTO_OP_TLS_1_2_AES_GCM_128_DEC)
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#define NFP_NET_TLS_OPCODE_MASK_TX \
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BIT(NFP_NET_CRYPTO_OP_TLS_1_2_AES_GCM_128_ENC)
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#define NFP_NET_TLS_OPCODE_MASK \
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(NFP_NET_TLS_OPCODE_MASK_RX | NFP_NET_TLS_OPCODE_MASK_TX)
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static void nfp_net_crypto_set_op(struct nfp_net *nn, u8 opcode, bool on)
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{
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u32 off, val;
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off = nn->tlv_caps.crypto_enable_off + round_down(opcode / 8, 4);
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val = nn_readl(nn, off);
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if (on)
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val |= BIT(opcode & 31);
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else
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val &= ~BIT(opcode & 31);
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nn_writel(nn, off, val);
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}
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static bool
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__nfp_net_tls_conn_cnt_changed(struct nfp_net *nn, int add,
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enum tls_offload_ctx_dir direction)
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{
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u8 opcode;
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int cnt;
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if (direction == TLS_OFFLOAD_CTX_DIR_TX) {
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opcode = NFP_NET_CRYPTO_OP_TLS_1_2_AES_GCM_128_ENC;
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nn->ktls_tx_conn_cnt += add;
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cnt = nn->ktls_tx_conn_cnt;
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nn->dp.ktls_tx = !!nn->ktls_tx_conn_cnt;
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} else {
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opcode = NFP_NET_CRYPTO_OP_TLS_1_2_AES_GCM_128_DEC;
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nn->ktls_rx_conn_cnt += add;
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cnt = nn->ktls_rx_conn_cnt;
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}
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/* Care only about 0 -> 1 and 1 -> 0 transitions */
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if (cnt > 1)
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return false;
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nfp_net_crypto_set_op(nn, opcode, cnt);
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return true;
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}
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static int
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nfp_net_tls_conn_cnt_changed(struct nfp_net *nn, int add,
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enum tls_offload_ctx_dir direction)
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{
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int ret = 0;
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/* Use the BAR lock to protect the connection counts */
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nn_ctrl_bar_lock(nn);
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if (__nfp_net_tls_conn_cnt_changed(nn, add, direction)) {
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ret = __nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_CRYPTO);
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/* Undo the cnt adjustment if failed */
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if (ret)
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__nfp_net_tls_conn_cnt_changed(nn, -add, direction);
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}
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nn_ctrl_bar_unlock(nn);
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return ret;
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}
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static int
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nfp_net_tls_conn_add(struct nfp_net *nn, enum tls_offload_ctx_dir direction)
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{
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return nfp_net_tls_conn_cnt_changed(nn, 1, direction);
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}
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static int
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nfp_net_tls_conn_remove(struct nfp_net *nn, enum tls_offload_ctx_dir direction)
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{
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return nfp_net_tls_conn_cnt_changed(nn, -1, direction);
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}
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static struct sk_buff *
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nfp_net_tls_alloc_simple(struct nfp_net *nn, size_t req_sz, gfp_t flags)
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{
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return nfp_ccm_mbox_msg_alloc(nn, req_sz,
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sizeof(struct nfp_crypto_reply_simple),
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flags);
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}
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static int
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nfp_net_tls_communicate_simple(struct nfp_net *nn, struct sk_buff *skb,
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const char *name, enum nfp_ccm_type type)
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{
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struct nfp_crypto_reply_simple *reply;
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int err;
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err = __nfp_ccm_mbox_communicate(nn, skb, type,
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sizeof(*reply), sizeof(*reply),
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type == NFP_CCM_TYPE_CRYPTO_DEL);
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if (err) {
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nn_dp_warn(&nn->dp, "failed to %s TLS: %d\n", name, err);
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return err;
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}
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reply = (void *)skb->data;
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err = -be32_to_cpu(reply->error);
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if (err)
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nn_dp_warn(&nn->dp, "failed to %s TLS, fw replied: %d\n",
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name, err);
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dev_consume_skb_any(skb);
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return err;
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}
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static void nfp_net_tls_del_fw(struct nfp_net *nn, __be32 *fw_handle)
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{
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struct nfp_crypto_req_del *req;
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struct sk_buff *skb;
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skb = nfp_net_tls_alloc_simple(nn, sizeof(*req), GFP_KERNEL);
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if (!skb)
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return;
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req = (void *)skb->data;
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req->ep_id = 0;
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memcpy(req->handle, fw_handle, sizeof(req->handle));
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nfp_net_tls_communicate_simple(nn, skb, "delete",
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NFP_CCM_TYPE_CRYPTO_DEL);
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}
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static void
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nfp_net_tls_set_ipver_vlan(struct nfp_crypto_req_add_front *front, u8 ipver)
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{
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front->ipver_vlan = cpu_to_be16(FIELD_PREP(NFP_NET_TLS_IPVER, ipver) |
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FIELD_PREP(NFP_NET_TLS_VLAN,
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NFP_NET_TLS_VLAN_UNUSED));
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}
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static void
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nfp_net_tls_assign_conn_id(struct nfp_net *nn,
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struct nfp_crypto_req_add_front *front)
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{
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u32 len;
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u64 id;
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id = atomic64_inc_return(&nn->ktls_conn_id_gen);
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len = front->key_len - NFP_NET_TLS_NON_ADDR_KEY_LEN;
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memcpy(front->l3_addrs, &id, sizeof(id));
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memset(front->l3_addrs + sizeof(id), 0, len - sizeof(id));
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}
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static struct nfp_crypto_req_add_back *
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nfp_net_tls_set_ipv4(struct nfp_net *nn, struct nfp_crypto_req_add_v4 *req,
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struct sock *sk, int direction)
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{
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struct inet_sock *inet = inet_sk(sk);
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req->front.key_len += sizeof(__be32) * 2;
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if (direction == TLS_OFFLOAD_CTX_DIR_TX) {
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nfp_net_tls_assign_conn_id(nn, &req->front);
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} else {
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req->src_ip = inet->inet_daddr;
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req->dst_ip = inet->inet_saddr;
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}
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return &req->back;
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}
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static struct nfp_crypto_req_add_back *
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nfp_net_tls_set_ipv6(struct nfp_net *nn, struct nfp_crypto_req_add_v6 *req,
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struct sock *sk, int direction)
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{
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#if IS_ENABLED(CONFIG_IPV6)
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struct ipv6_pinfo *np = inet6_sk(sk);
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req->front.key_len += sizeof(struct in6_addr) * 2;
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if (direction == TLS_OFFLOAD_CTX_DIR_TX) {
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nfp_net_tls_assign_conn_id(nn, &req->front);
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} else {
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memcpy(req->src_ip, &sk->sk_v6_daddr, sizeof(req->src_ip));
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memcpy(req->dst_ip, &np->saddr, sizeof(req->dst_ip));
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}
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#endif
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return &req->back;
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}
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static void
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nfp_net_tls_set_l4(struct nfp_crypto_req_add_front *front,
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struct nfp_crypto_req_add_back *back, struct sock *sk,
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int direction)
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{
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struct inet_sock *inet = inet_sk(sk);
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front->l4_proto = IPPROTO_TCP;
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if (direction == TLS_OFFLOAD_CTX_DIR_TX) {
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back->src_port = 0;
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back->dst_port = 0;
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} else {
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back->src_port = inet->inet_dport;
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back->dst_port = inet->inet_sport;
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}
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}
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static u8 nfp_tls_1_2_dir_to_opcode(enum tls_offload_ctx_dir direction)
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{
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switch (direction) {
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case TLS_OFFLOAD_CTX_DIR_TX:
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return NFP_NET_CRYPTO_OP_TLS_1_2_AES_GCM_128_ENC;
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case TLS_OFFLOAD_CTX_DIR_RX:
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return NFP_NET_CRYPTO_OP_TLS_1_2_AES_GCM_128_DEC;
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default:
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WARN_ON_ONCE(1);
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return 0;
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}
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}
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static bool
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nfp_net_cipher_supported(struct nfp_net *nn, u16 cipher_type,
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enum tls_offload_ctx_dir direction)
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{
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u8 bit;
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switch (cipher_type) {
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case TLS_CIPHER_AES_GCM_128:
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if (direction == TLS_OFFLOAD_CTX_DIR_TX)
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bit = NFP_NET_CRYPTO_OP_TLS_1_2_AES_GCM_128_ENC;
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else
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bit = NFP_NET_CRYPTO_OP_TLS_1_2_AES_GCM_128_DEC;
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break;
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default:
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return false;
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}
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return nn->tlv_caps.crypto_ops & BIT(bit);
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}
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static int
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nfp_net_tls_add(struct net_device *netdev, struct sock *sk,
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enum tls_offload_ctx_dir direction,
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struct tls_crypto_info *crypto_info,
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u32 start_offload_tcp_sn)
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{
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struct tls12_crypto_info_aes_gcm_128 *tls_ci;
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struct nfp_net *nn = netdev_priv(netdev);
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struct nfp_crypto_req_add_front *front;
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struct nfp_net_tls_offload_ctx *ntls;
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struct nfp_crypto_req_add_back *back;
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struct nfp_crypto_reply_add *reply;
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struct sk_buff *skb;
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size_t req_sz;
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void *req;
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bool ipv6;
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int err;
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BUILD_BUG_ON(sizeof(struct nfp_net_tls_offload_ctx) >
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TLS_DRIVER_STATE_SIZE_TX);
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BUILD_BUG_ON(offsetof(struct nfp_net_tls_offload_ctx, rx_end) >
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TLS_DRIVER_STATE_SIZE_RX);
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if (!nfp_net_cipher_supported(nn, crypto_info->cipher_type, direction))
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return -EOPNOTSUPP;
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switch (sk->sk_family) {
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#if IS_ENABLED(CONFIG_IPV6)
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case AF_INET6:
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if (ipv6_only_sock(sk) ||
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ipv6_addr_type(&sk->sk_v6_daddr) != IPV6_ADDR_MAPPED) {
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req_sz = sizeof(struct nfp_crypto_req_add_v6);
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ipv6 = true;
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break;
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}
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fallthrough;
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#endif
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case AF_INET:
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req_sz = sizeof(struct nfp_crypto_req_add_v4);
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ipv6 = false;
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break;
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default:
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return -EOPNOTSUPP;
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}
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err = nfp_net_tls_conn_add(nn, direction);
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if (err)
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return err;
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skb = nfp_ccm_mbox_msg_alloc(nn, req_sz, sizeof(*reply), GFP_KERNEL);
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if (!skb) {
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err = -ENOMEM;
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goto err_conn_remove;
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}
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front = (void *)skb->data;
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front->ep_id = 0;
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front->key_len = NFP_NET_TLS_NON_ADDR_KEY_LEN;
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front->opcode = nfp_tls_1_2_dir_to_opcode(direction);
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memset(front->resv, 0, sizeof(front->resv));
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nfp_net_tls_set_ipver_vlan(front, ipv6 ? 6 : 4);
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req = (void *)skb->data;
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if (ipv6)
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back = nfp_net_tls_set_ipv6(nn, req, sk, direction);
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else
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back = nfp_net_tls_set_ipv4(nn, req, sk, direction);
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nfp_net_tls_set_l4(front, back, sk, direction);
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back->counter = 0;
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back->tcp_seq = cpu_to_be32(start_offload_tcp_sn);
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tls_ci = (struct tls12_crypto_info_aes_gcm_128 *)crypto_info;
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memcpy(back->key, tls_ci->key, TLS_CIPHER_AES_GCM_128_KEY_SIZE);
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memset(&back->key[TLS_CIPHER_AES_GCM_128_KEY_SIZE / 4], 0,
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sizeof(back->key) - TLS_CIPHER_AES_GCM_128_KEY_SIZE);
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memcpy(back->iv, tls_ci->iv, TLS_CIPHER_AES_GCM_128_IV_SIZE);
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memcpy(&back->salt, tls_ci->salt, TLS_CIPHER_AES_GCM_128_SALT_SIZE);
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memcpy(back->rec_no, tls_ci->rec_seq, sizeof(tls_ci->rec_seq));
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/* Get an extra ref on the skb so we can wipe the key after */
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skb_get(skb);
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err = nfp_ccm_mbox_communicate(nn, skb, NFP_CCM_TYPE_CRYPTO_ADD,
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sizeof(*reply), sizeof(*reply));
|
||
|
|
reply = (void *)skb->data;
|
||
|
|
|
||
|
|
/* We depend on CCM MBOX code not reallocating skb we sent
|
||
|
|
* so we can clear the key material out of the memory.
|
||
|
|
*/
|
||
|
|
if (!WARN_ON_ONCE((u8 *)back < skb->head ||
|
||
|
|
(u8 *)back > skb_end_pointer(skb)) &&
|
||
|
|
!WARN_ON_ONCE((u8 *)&reply[1] > (u8 *)back))
|
||
|
|
memzero_explicit(back, sizeof(*back));
|
||
|
|
dev_consume_skb_any(skb); /* the extra ref from skb_get() above */
|
||
|
|
|
||
|
|
if (err) {
|
||
|
|
nn_dp_warn(&nn->dp, "failed to add TLS: %d (%d)\n",
|
||
|
|
err, direction == TLS_OFFLOAD_CTX_DIR_TX);
|
||
|
|
/* communicate frees skb on error */
|
||
|
|
goto err_conn_remove;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = -be32_to_cpu(reply->error);
|
||
|
|
if (err) {
|
||
|
|
if (err == -ENOSPC) {
|
||
|
|
if (!atomic_fetch_inc(&nn->ktls_no_space))
|
||
|
|
nn_info(nn, "HW TLS table full\n");
|
||
|
|
} else {
|
||
|
|
nn_dp_warn(&nn->dp,
|
||
|
|
"failed to add TLS, FW replied: %d\n", err);
|
||
|
|
}
|
||
|
|
goto err_free_skb;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!reply->handle[0] && !reply->handle[1]) {
|
||
|
|
nn_dp_warn(&nn->dp, "FW returned NULL handle\n");
|
||
|
|
err = -EINVAL;
|
||
|
|
goto err_fw_remove;
|
||
|
|
}
|
||
|
|
|
||
|
|
ntls = tls_driver_ctx(sk, direction);
|
||
|
|
memcpy(ntls->fw_handle, reply->handle, sizeof(ntls->fw_handle));
|
||
|
|
if (direction == TLS_OFFLOAD_CTX_DIR_TX)
|
||
|
|
ntls->next_seq = start_offload_tcp_sn;
|
||
|
|
dev_consume_skb_any(skb);
|
||
|
|
|
||
|
|
if (direction == TLS_OFFLOAD_CTX_DIR_TX)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (!nn->tlv_caps.tls_resync_ss)
|
||
|
|
tls_offload_rx_resync_set_type(sk, TLS_OFFLOAD_SYNC_TYPE_CORE_NEXT_HINT);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err_fw_remove:
|
||
|
|
nfp_net_tls_del_fw(nn, reply->handle);
|
||
|
|
err_free_skb:
|
||
|
|
dev_consume_skb_any(skb);
|
||
|
|
err_conn_remove:
|
||
|
|
nfp_net_tls_conn_remove(nn, direction);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
nfp_net_tls_del(struct net_device *netdev, struct tls_context *tls_ctx,
|
||
|
|
enum tls_offload_ctx_dir direction)
|
||
|
|
{
|
||
|
|
struct nfp_net *nn = netdev_priv(netdev);
|
||
|
|
struct nfp_net_tls_offload_ctx *ntls;
|
||
|
|
|
||
|
|
nfp_net_tls_conn_remove(nn, direction);
|
||
|
|
|
||
|
|
ntls = __tls_driver_ctx(tls_ctx, direction);
|
||
|
|
nfp_net_tls_del_fw(nn, ntls->fw_handle);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nfp_net_tls_resync(struct net_device *netdev, struct sock *sk, u32 seq,
|
||
|
|
u8 *rcd_sn, enum tls_offload_ctx_dir direction)
|
||
|
|
{
|
||
|
|
struct nfp_net *nn = netdev_priv(netdev);
|
||
|
|
struct nfp_net_tls_offload_ctx *ntls;
|
||
|
|
struct nfp_crypto_req_update *req;
|
||
|
|
enum nfp_ccm_type type;
|
||
|
|
struct sk_buff *skb;
|
||
|
|
gfp_t flags;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
flags = direction == TLS_OFFLOAD_CTX_DIR_TX ? GFP_KERNEL : GFP_ATOMIC;
|
||
|
|
skb = nfp_net_tls_alloc_simple(nn, sizeof(*req), flags);
|
||
|
|
if (!skb)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
ntls = tls_driver_ctx(sk, direction);
|
||
|
|
req = (void *)skb->data;
|
||
|
|
req->ep_id = 0;
|
||
|
|
req->opcode = nfp_tls_1_2_dir_to_opcode(direction);
|
||
|
|
memset(req->resv, 0, sizeof(req->resv));
|
||
|
|
memcpy(req->handle, ntls->fw_handle, sizeof(ntls->fw_handle));
|
||
|
|
req->tcp_seq = cpu_to_be32(seq);
|
||
|
|
memcpy(req->rec_no, rcd_sn, sizeof(req->rec_no));
|
||
|
|
|
||
|
|
type = NFP_CCM_TYPE_CRYPTO_UPDATE;
|
||
|
|
if (direction == TLS_OFFLOAD_CTX_DIR_TX) {
|
||
|
|
err = nfp_net_tls_communicate_simple(nn, skb, "sync", type);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
ntls->next_seq = seq;
|
||
|
|
} else {
|
||
|
|
if (nn->tlv_caps.tls_resync_ss)
|
||
|
|
type = NFP_CCM_TYPE_CRYPTO_RESYNC;
|
||
|
|
nfp_ccm_mbox_post(nn, skb, type,
|
||
|
|
sizeof(struct nfp_crypto_reply_simple));
|
||
|
|
atomic_inc(&nn->ktls_rx_resync_sent);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct tlsdev_ops nfp_net_tls_ops = {
|
||
|
|
.tls_dev_add = nfp_net_tls_add,
|
||
|
|
.tls_dev_del = nfp_net_tls_del,
|
||
|
|
.tls_dev_resync = nfp_net_tls_resync,
|
||
|
|
};
|
||
|
|
|
||
|
|
int nfp_net_tls_rx_resync_req(struct net_device *netdev,
|
||
|
|
struct nfp_net_tls_resync_req *req,
|
||
|
|
void *pkt, unsigned int pkt_len)
|
||
|
|
{
|
||
|
|
struct nfp_net *nn = netdev_priv(netdev);
|
||
|
|
struct nfp_net_tls_offload_ctx *ntls;
|
||
|
|
struct net *net = dev_net(netdev);
|
||
|
|
struct ipv6hdr *ipv6h;
|
||
|
|
struct tcphdr *th;
|
||
|
|
struct iphdr *iph;
|
||
|
|
struct sock *sk;
|
||
|
|
__be32 tcp_seq;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
iph = pkt + req->l3_offset;
|
||
|
|
ipv6h = pkt + req->l3_offset;
|
||
|
|
th = pkt + req->l4_offset;
|
||
|
|
|
||
|
|
if ((u8 *)&th[1] > (u8 *)pkt + pkt_len) {
|
||
|
|
netdev_warn_once(netdev, "invalid TLS RX resync request (l3_off: %hhu l4_off: %hhu pkt_len: %u)\n",
|
||
|
|
req->l3_offset, req->l4_offset, pkt_len);
|
||
|
|
err = -EINVAL;
|
||
|
|
goto err_cnt_ign;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (ipv6h->version) {
|
||
|
|
case 4:
|
||
|
|
sk = inet_lookup_established(net, net->ipv4.tcp_death_row.hashinfo,
|
||
|
|
iph->saddr, th->source, iph->daddr,
|
||
|
|
th->dest, netdev->ifindex);
|
||
|
|
break;
|
||
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
||
|
|
case 6:
|
||
|
|
sk = __inet6_lookup_established(net, net->ipv4.tcp_death_row.hashinfo,
|
||
|
|
&ipv6h->saddr, th->source,
|
||
|
|
&ipv6h->daddr, ntohs(th->dest),
|
||
|
|
netdev->ifindex, 0);
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
default:
|
||
|
|
netdev_warn_once(netdev, "invalid TLS RX resync request (l3_off: %hhu l4_off: %hhu ipver: %u)\n",
|
||
|
|
req->l3_offset, req->l4_offset, iph->version);
|
||
|
|
err = -EINVAL;
|
||
|
|
goto err_cnt_ign;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = 0;
|
||
|
|
if (!sk)
|
||
|
|
goto err_cnt_ign;
|
||
|
|
if (!tls_is_sk_rx_device_offloaded(sk) ||
|
||
|
|
sk->sk_shutdown & RCV_SHUTDOWN)
|
||
|
|
goto err_put_sock;
|
||
|
|
|
||
|
|
ntls = tls_driver_ctx(sk, TLS_OFFLOAD_CTX_DIR_RX);
|
||
|
|
/* some FW versions can't report the handle and report 0s */
|
||
|
|
if (memchr_inv(&req->fw_handle, 0, sizeof(req->fw_handle)) &&
|
||
|
|
memcmp(&req->fw_handle, &ntls->fw_handle, sizeof(ntls->fw_handle)))
|
||
|
|
goto err_put_sock;
|
||
|
|
|
||
|
|
/* copy to ensure alignment */
|
||
|
|
memcpy(&tcp_seq, &req->tcp_seq, sizeof(tcp_seq));
|
||
|
|
tls_offload_rx_resync_request(sk, tcp_seq);
|
||
|
|
atomic_inc(&nn->ktls_rx_resync_req);
|
||
|
|
|
||
|
|
sock_gen_put(sk);
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err_put_sock:
|
||
|
|
sock_gen_put(sk);
|
||
|
|
err_cnt_ign:
|
||
|
|
atomic_inc(&nn->ktls_rx_resync_ign);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int nfp_net_tls_reset(struct nfp_net *nn)
|
||
|
|
{
|
||
|
|
struct nfp_crypto_req_reset *req;
|
||
|
|
struct sk_buff *skb;
|
||
|
|
|
||
|
|
skb = nfp_net_tls_alloc_simple(nn, sizeof(*req), GFP_KERNEL);
|
||
|
|
if (!skb)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
req = (void *)skb->data;
|
||
|
|
req->ep_id = 0;
|
||
|
|
|
||
|
|
return nfp_net_tls_communicate_simple(nn, skb, "reset",
|
||
|
|
NFP_CCM_TYPE_CRYPTO_RESET);
|
||
|
|
}
|
||
|
|
|
||
|
|
int nfp_net_tls_init(struct nfp_net *nn)
|
||
|
|
{
|
||
|
|
struct net_device *netdev = nn->dp.netdev;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (!(nn->tlv_caps.crypto_ops & NFP_NET_TLS_OPCODE_MASK))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if ((nn->tlv_caps.mbox_cmsg_types & NFP_NET_TLS_CCM_MBOX_OPS_MASK) !=
|
||
|
|
NFP_NET_TLS_CCM_MBOX_OPS_MASK)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (!nfp_ccm_mbox_fits(nn, sizeof(struct nfp_crypto_req_add_v6))) {
|
||
|
|
nn_warn(nn, "disabling TLS offload - mbox too small: %d\n",
|
||
|
|
nn->tlv_caps.mbox_len);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = nfp_net_tls_reset(nn);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
nn_ctrl_bar_lock(nn);
|
||
|
|
nn_writel(nn, nn->tlv_caps.crypto_enable_off, 0);
|
||
|
|
err = __nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_CRYPTO);
|
||
|
|
nn_ctrl_bar_unlock(nn);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
if (nn->tlv_caps.crypto_ops & NFP_NET_TLS_OPCODE_MASK_RX) {
|
||
|
|
netdev->hw_features |= NETIF_F_HW_TLS_RX;
|
||
|
|
netdev->features |= NETIF_F_HW_TLS_RX;
|
||
|
|
}
|
||
|
|
if (nn->tlv_caps.crypto_ops & NFP_NET_TLS_OPCODE_MASK_TX) {
|
||
|
|
netdev->hw_features |= NETIF_F_HW_TLS_TX;
|
||
|
|
netdev->features |= NETIF_F_HW_TLS_TX;
|
||
|
|
}
|
||
|
|
|
||
|
|
netdev->tlsdev_ops = &nfp_net_tls_ops;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|