diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 2ed295a..ef60379 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -974,6 +974,10 @@
  */
 struct mbedtls_ssl_session
 {
+#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
+    unsigned char mfl_code;     /*!< MaxFragmentLength negotiated by peer */
+#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
+
 #if defined(MBEDTLS_HAVE_TIME)
     mbedtls_time_t start;       /*!< starting time      */
 #endif
@@ -1002,10 +1006,6 @@
     uint32_t ticket_lifetime;   /*!< ticket lifetime hint    */
 #endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
 
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    unsigned char mfl_code;     /*!< MaxFragmentLength negotiated by peer */
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
 #if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
     int trunc_hmac;             /*!< flag for truncated hmac activation   */
 #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
@@ -1020,7 +1020,96 @@
  */
 struct mbedtls_ssl_config
 {
-    /* Group items by size (largest first) to minimize padding overhead */
+    /* Group items by size and reorder them to maximize usage of immediate offset access.    */
+
+    /*
+     * Numerical settings (char)
+     */
+
+    unsigned char max_major_ver;    /*!< max. major version used            */
+    unsigned char max_minor_ver;    /*!< max. minor version used            */
+    unsigned char min_major_ver;    /*!< min. major version used            */
+    unsigned char min_minor_ver;    /*!< min. minor version used            */
+
+    /*
+     * Flags (bitfields)
+     */
+
+    unsigned int endpoint : 1;      /*!< 0: client, 1: server               */
+    unsigned int transport : 1;     /*!< stream (TLS) or datagram (DTLS)    */
+    unsigned int authmode : 2;      /*!< MBEDTLS_SSL_VERIFY_XXX             */
+    /* needed even with renego disabled for LEGACY_BREAK_HANDSHAKE          */
+    unsigned int allow_legacy_renegotiation : 2 ; /*!< MBEDTLS_LEGACY_XXX   */
+#if defined(MBEDTLS_ARC4_C)
+    unsigned int arc4_disabled : 1; /*!< blacklist RC4 ciphersuites?        */
+#endif
+#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
+    unsigned int mfl_code : 3;      /*!< desired fragment length            */
+#endif
+#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
+    unsigned int encrypt_then_mac : 1 ; /*!< negotiate encrypt-then-mac?    */
+#endif
+#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
+    unsigned int extended_ms : 1;   /*!< negotiate extended master secret?  */
+#endif
+#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
+    unsigned int anti_replay : 1;   /*!< detect and prevent replay?         */
+#endif
+#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
+    unsigned int cbc_record_splitting : 1;  /*!< do cbc record splitting    */
+#endif
+#if defined(MBEDTLS_SSL_RENEGOTIATION)
+    unsigned int disable_renegotiation : 1; /*!< disable renegotiation?     */
+#endif
+#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
+    unsigned int trunc_hmac : 1;    /*!< negotiate truncated hmac?          */
+#endif
+#if defined(MBEDTLS_SSL_SESSION_TICKETS)
+    unsigned int session_tickets : 1;   /*!< use session tickets?           */
+#endif
+#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C)
+    unsigned int fallback : 1;      /*!< is this a fallback?                */
+#endif
+#if defined(MBEDTLS_SSL_SRV_C)
+    unsigned int cert_req_ca_list : 1;  /*!< enable sending CA list in
+                                          Certificate Request messages?     */
+#endif
+#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
+    unsigned int ignore_unexpected_cid : 1; /*!< Determines whether DTLS
+                                             *   record with unexpected CID
+                                             *   should lead to failure.    */
+#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
+#if defined(MBEDTLS_SSL_DTLS_SRTP)
+    unsigned int dtls_srtp_mki_support : 1; /* support having mki_value
+                                               in the use_srtp extension     */
+#endif
+
+    /*
+     * Numerical settings (int then char)
+     */
+
+    uint32_t read_timeout;          /*!< timeout for mbedtls_ssl_read (ms)  */
+
+#if defined(MBEDTLS_SSL_PROTO_DTLS)
+    uint32_t hs_timeout_min;        /*!< initial value of the handshake
+                                         retransmission timeout (ms)        */
+    uint32_t hs_timeout_max;        /*!< maximum value of the handshake
+                                         retransmission timeout (ms)        */
+#endif
+
+#if defined(MBEDTLS_SSL_RENEGOTIATION)
+    int renego_max_records;         /*!< grace period for renegotiation     */
+    unsigned char renego_period[8]; /*!< value of the record counters
+                                         that triggers renegotiation        */
+#endif
+
+#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
+    unsigned int badmac_limit;      /*!< limit of records with a bad MAC    */
+#endif
+
+#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C)
+    unsigned int dhm_min_bitlen;    /*!< min. bit length of the DHM prime   */
+#endif
 
     /*
      * Pointers
@@ -1174,91 +1263,6 @@
     /*! number of supported profiles */
     size_t dtls_srtp_profile_list_len;
 #endif /* MBEDTLS_SSL_DTLS_SRTP */
-
-    /*
-     * Numerical settings (int then char)
-     */
-
-    uint32_t read_timeout;          /*!< timeout for mbedtls_ssl_read (ms)  */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    uint32_t hs_timeout_min;        /*!< initial value of the handshake
-                                         retransmission timeout (ms)        */
-    uint32_t hs_timeout_max;        /*!< maximum value of the handshake
-                                         retransmission timeout (ms)        */
-#endif
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    int renego_max_records;         /*!< grace period for renegotiation     */
-    unsigned char renego_period[8]; /*!< value of the record counters
-                                         that triggers renegotiation        */
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-    unsigned int badmac_limit;      /*!< limit of records with a bad MAC    */
-#endif
-
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C)
-    unsigned int dhm_min_bitlen;    /*!< min. bit length of the DHM prime   */
-#endif
-
-    unsigned char max_major_ver;    /*!< max. major version used            */
-    unsigned char max_minor_ver;    /*!< max. minor version used            */
-    unsigned char min_major_ver;    /*!< min. major version used            */
-    unsigned char min_minor_ver;    /*!< min. minor version used            */
-
-    /*
-     * Flags (bitfields)
-     */
-
-    unsigned int endpoint : 1;      /*!< 0: client, 1: server               */
-    unsigned int transport : 1;     /*!< stream (TLS) or datagram (DTLS)    */
-    unsigned int authmode : 2;      /*!< MBEDTLS_SSL_VERIFY_XXX             */
-    /* needed even with renego disabled for LEGACY_BREAK_HANDSHAKE          */
-    unsigned int allow_legacy_renegotiation : 2 ; /*!< MBEDTLS_LEGACY_XXX   */
-#if defined(MBEDTLS_ARC4_C)
-    unsigned int arc4_disabled : 1; /*!< blacklist RC4 ciphersuites?        */
-#endif
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    unsigned int mfl_code : 3;      /*!< desired fragment length            */
-#endif
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    unsigned int encrypt_then_mac : 1 ; /*!< negotiate encrypt-then-mac?    */
-#endif
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    unsigned int extended_ms : 1;   /*!< negotiate extended master secret?  */
-#endif
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    unsigned int anti_replay : 1;   /*!< detect and prevent replay?         */
-#endif
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-    unsigned int cbc_record_splitting : 1;  /*!< do cbc record splitting    */
-#endif
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    unsigned int disable_renegotiation : 1; /*!< disable renegotiation?     */
-#endif
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    unsigned int trunc_hmac : 1;    /*!< negotiate truncated hmac?          */
-#endif
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    unsigned int session_tickets : 1;   /*!< use session tickets?           */
-#endif
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C)
-    unsigned int fallback : 1;      /*!< is this a fallback?                */
-#endif
-#if defined(MBEDTLS_SSL_SRV_C)
-    unsigned int cert_req_ca_list : 1;  /*!< enable sending CA list in
-                                          Certificate Request messages?     */
-#endif
-#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
-    unsigned int ignore_unexpected_cid : 1; /*!< Determines whether DTLS
-                                             *   record with unexpected CID
-                                             *   should lead to failure.    */
-#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
-#if defined(MBEDTLS_SSL_DTLS_SRTP)
-    unsigned int dtls_srtp_mki_support : 1; /* support having mki_value
-                                               in the use_srtp extension     */
-#endif
 };
 
 struct mbedtls_ssl_context