FreeBSD/Linux Kernel Cross Reference
sys/dev/cxgbe/tom/t4_tls.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2017-2018 Chelsio Communications, Inc.
      * All rights reserved.
      * Written by: John Baldwin <jhb@FreeBSD.org>, Atul Gupta
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     *
     */
    
    #ifndef __T4_TLS_H__
    #define __T4_TLS_H__
    
    #ifdef _KERNEL
    
    #define CONTENT_TYPE_CCS                20
    #define CONTENT_TYPE_ALERT              21
    #define CONTENT_TYPE_HANDSHAKE          22
    #define CONTENT_TYPE_APP_DATA           23
    #define CONTENT_TYPE_HEARTBEAT          24
    #define CONTENT_TYPE_KEY_CONTEXT        32
    #define CONTENT_TYPE_ERROR              127
    
    #define TLS_HEADER_LENGTH               5
    #define TP_TX_PG_SZ                     65536
    #define FC_TP_PLEN_MAX                  17408
    
    enum {
            TLS_SFO_WR_CONTEXTLOC_DSGL,
            TLS_SFO_WR_CONTEXTLOC_IMMEDIATE,
            TLS_SFO_WR_CONTEXTLOC_DDR,
    };
    
    enum {
            CPL_TX_TLS_SFO_TYPE_CCS,
            CPL_TX_TLS_SFO_TYPE_ALERT,
            CPL_TX_TLS_SFO_TYPE_HANDSHAKE,
            CPL_TX_TLS_SFO_TYPE_DATA,
            CPL_TX_TLS_SFO_TYPE_CUSTOM,
    };
    
    struct tls_scmd {
            __be32 seqno_numivs;
            __be32 ivgen_hdrlen;
    };
    
    struct tls_ofld_info {
            unsigned int frag_size;
            int key_location;
            int rx_key_addr;
            int tx_key_addr;
            uint16_t rx_version;
            unsigned short fcplenmax;
            unsigned short adjusted_plen;
            unsigned short expn_per_ulp;
            unsigned short pdus_per_ulp;
            struct tls_scmd scmd0;
            u_int iv_len;
            unsigned int tx_key_info_size;
            size_t rx_resid;
    };
    
    struct tls_hdr {
            __u8   type;
            __be16 version;
            __be16 length;
    } __packed;
    
    struct tlsrx_hdr_pkt {
            __u8   type;
            __be16 version;
            __be16 length;
    
            __be64 tls_seq;
            __be16 reserved1;
            __u8   res_to_mac_error;
    } __packed;
   
   /* res_to_mac_error fields */
   #define S_TLSRX_HDR_PKT_INTERNAL_ERROR   4
   #define M_TLSRX_HDR_PKT_INTERNAL_ERROR   0x1
   #define V_TLSRX_HDR_PKT_INTERNAL_ERROR(x) \
           ((x) << S_TLSRX_HDR_PKT_INTERNAL_ERROR)
   #define G_TLSRX_HDR_PKT_INTERNAL_ERROR(x) \
   (((x) >> S_TLSRX_HDR_PKT_INTERNAL_ERROR) & M_TLSRX_HDR_PKT_INTERNAL_ERROR)
   #define F_TLSRX_HDR_PKT_INTERNAL_ERROR   V_TLSRX_HDR_PKT_INTERNAL_ERROR(1U)
   
   #define S_TLSRX_HDR_PKT_SPP_ERROR        3
   #define M_TLSRX_HDR_PKT_SPP_ERROR        0x1
   #define V_TLSRX_HDR_PKT_SPP_ERROR(x)     ((x) << S_TLSRX_HDR_PKT_SPP_ERROR)
   #define G_TLSRX_HDR_PKT_SPP_ERROR(x)     \
   (((x) >> S_TLSRX_HDR_PKT_SPP_ERROR) & M_TLSRX_HDR_PKT_SPP_ERROR)
   #define F_TLSRX_HDR_PKT_SPP_ERROR        V_TLSRX_HDR_PKT_SPP_ERROR(1U)
   
   #define S_TLSRX_HDR_PKT_CCDX_ERROR       2
   #define M_TLSRX_HDR_PKT_CCDX_ERROR       0x1
   #define V_TLSRX_HDR_PKT_CCDX_ERROR(x)    ((x) << S_TLSRX_HDR_PKT_CCDX_ERROR)
   #define G_TLSRX_HDR_PKT_CCDX_ERROR(x)    \
   (((x) >> S_TLSRX_HDR_PKT_CCDX_ERROR) & M_TLSRX_HDR_PKT_CCDX_ERROR)
   #define F_TLSRX_HDR_PKT_CCDX_ERROR       V_TLSRX_HDR_PKT_CCDX_ERROR(1U)
   
   #define S_TLSRX_HDR_PKT_PAD_ERROR        1
   #define M_TLSRX_HDR_PKT_PAD_ERROR        0x1
   #define V_TLSRX_HDR_PKT_PAD_ERROR(x)     ((x) << S_TLSRX_HDR_PKT_PAD_ERROR)
   #define G_TLSRX_HDR_PKT_PAD_ERROR(x)     \
   (((x) >> S_TLSRX_HDR_PKT_PAD_ERROR) & M_TLSRX_HDR_PKT_PAD_ERROR)
   #define F_TLSRX_HDR_PKT_PAD_ERROR        V_TLSRX_HDR_PKT_PAD_ERROR(1U)
   
   #define S_TLSRX_HDR_PKT_MAC_ERROR        0
   #define M_TLSRX_HDR_PKT_MAC_ERROR        0x1
   #define V_TLSRX_HDR_PKT_MAC_ERROR(x)     ((x) << S_TLSRX_HDR_PKT_MAC_ERROR)
   #define G_TLSRX_HDR_PKT_MAC_ERROR(x)     \
   (((x) >> S_TLSRX_HDR_PKT_MAC_ERROR) & M_TLSRX_HDR_PKT_MAC_ERROR)
   #define F_TLSRX_HDR_PKT_MAC_ERROR        V_TLSRX_HDR_PKT_MAC_ERROR(1U)
   
   #define M_TLSRX_HDR_PKT_ERROR           0x1F
   
   #endif /* _KERNEL */
   
   #endif /* !__T4_TLS_H__ */

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