1 /* 2 * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved. 3 * Copyright (c) 2016-2017, Dave Watson <davejwatson@fb.com>. All rights reserved. 4 * 5 * This software is available to you under a choice of one of two 6 * licenses. You may choose to be licensed under the terms of the GNU 7 * General Public License (GPL) Version 2, available from the file 8 * COPYING in the main directory of this source tree, or the 9 * OpenIB.org BSD license below: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * - Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * - Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 */ 33 34 #include <linux/kref.h> 35 #include <linux/list.h> 36 37 struct sock; 38 39 #define TLS_TOE_DEVICE_NAME_MAX 32 40 41 /* 42 * This structure defines the routines for Inline TLS driver. 43 * The following routines are optional and filled with a 44 * null pointer if not defined. 45 * 46 * @name: Its the name of registered Inline tls device 47 * @dev_list: Inline tls device list 48 * int (*feature)(struct tls_toe_device *device); 49 * Called to return Inline TLS driver capability 50 * 51 * int (*hash)(struct tls_toe_device *device, struct sock *sk); 52 * This function sets Inline driver for listen and program 53 * device specific functioanlity as required 54 * 55 * void (*unhash)(struct tls_toe_device *device, struct sock *sk); 56 * This function cleans listen state set by Inline TLS driver 57 * 58 * void (*release)(struct kref *kref); 59 * Release the registered device and allocated resources 60 * @kref: Number of reference to tls_toe_device 61 */ 62 struct tls_toe_device { 63 char name[TLS_TOE_DEVICE_NAME_MAX]; 64 struct list_head dev_list; 65 int (*feature)(struct tls_toe_device *device); 66 int (*hash)(struct tls_toe_device *device, struct sock *sk); 67 void (*unhash)(struct tls_toe_device *device, struct sock *sk); 68 void (*release)(struct kref *kref); 69 struct kref kref; 70 }; 71 72 int tls_toe_bypass(struct sock *sk); 73 int tls_toe_hash(struct sock *sk); 74 void tls_toe_unhash(struct sock *sk); 75 76 void tls_toe_register_device(struct tls_toe_device *device); 77 void tls_toe_unregister_device(struct tls_toe_device *device); 78